Handoff

Handoff patent applications listed are from June 2005 to current and include Date, Patent Application Number, Patent Title, Patent Abstract summary and are linked to the corresponding patent application page.

03/01/07 - 20070049277 - Iub/iur hsdpa/hsupa mobility procedures when rl addition/rl deletion condition triggers simultaneously, in srnc, with the hs-dsch/e-dch serving cell change condition
Data structure is shown for radio link addition messages and radio link deletion messages of a mobility procedure in a wireless telecommunications system, each message for at least temporary storage in a computer-readable medium during transfer of said message, wherein each radio link addition message and each radio link deletion ...

03/01/07 - 20070049276 - User terminal-initiated hard handoff from a wireless local area network to a cellular network
A system and method are provided for supporting a multi-mode portable user terminal (UT) hard handoff procedure for a call from a wireless local area network (WLAN) to a cellular telephone network. The method includes: establishing a link between a UT and a serving WLAN; establishing a call via the ...

03/01/07 - 20070049275 - Method and apparatus for canceling cross-correlation noise due to strong serving cell signals
A method and apparatus for canceling cross-correlation noise due to a strong serving cell signal in a wireless communication system is disclosed. The wireless communication system includes a serving cell, at least one neighbor cell and at least one wireless transmit/receive unit (WTRU). The WTRU receives a signal including a ...

03/01/07 - 20070049274 - Hard handoff from a wireless local area network to a cellular telephone network
A system and a method are provided for supporting a hard handoff procedure for a call from a wireless local area network (WLAN) to a cellular telephone network. The method includes: establishing a link between a user terminal (UT) and a serving WLAN, and a call via the WLAN link; ...

03/01/07 - 20070049273 - Method and system for switching a mobile device in a mobile network
A method and a system for switching a mobile device (102) from a source Base Transceiver Station (BTS) to a target BTS in a mobile network (100) are disclosed. The method includes detecting an intention to switch the cell transmitted by the mobile device. A Base Station Controller (BSC) (112) ...

02/15/07 - 20070037577 - Apparatus, method and computer program product providing inclusion of local area information in broadcast messages and maintenance of radio access network black list
A method includes receiving location area-related information, associating the location area-related information with a neighbor cell information to determine if a cell belongs to a forbidden location area, and avoiding selection of the cell if the cell is determined to belong to the forbidden location area. Embodiments described include a ...

02/15/07 - 20070037576 - Method and apparatus for decreasing latencies during handover
A method and apparatus for handing over a mobile station (106) from a serving base station (104a) to a target base station (104b) within a wireless communication system (100) is described. A session is established between the mobile station and the serving base station and it is determined that the ...

02/08/07 - 20070032239 - Method and apparatus for handoff between a wireless local area network (wlan) and a universal mobile telecommunication system (umts)
Apparatus and method for providing an automatic handoff process of a dual-mode user equipment (UE) from either a wireless local area network (WLAN) to a universal mobile telecommunications system (UMTS) or from a UMTS to a WLAN. Handoffs may be initiated by the UE, based upon user preference, signal quality, ...

02/08/07 - 20070032238 - Method and system for performing handover between multiple modes using a single wireless receiver
A method for performing handover between multiple modes for a mobile station is provided. The method includes operating the mobile station in a first mode. A handover from the first mode to a second mode is performed using a single wireless receiver. The mobile station operates in the second mode ...

02/08/07 - 20070032237 - Apparatus and method for performing handoff in a communication system
A method is provided for performing handoff in a communication system including a serving base station (BS) in communication with a mobile station (MS), at least one neighbor BS using a communication scheme different from a communication scheme of the serving BS, and the MS capable of communicating with the ...

02/08/07 - 20070032236 - Performing mobile terminal handover in response to user input
A method for handover in a mobile terminal includes detecting whether a manual instruction for handover of the mobile terminal from a first communication network to another communication network is inputted by a user. After detecting the manual instruction, a registration is made with a second communication network when the ...

02/01/07 - 20070026862 - Communication environment switchover
Communication environment switchover may be provided. A received signal strength level may be determined corresponding to a signal sent from a first device and received at a second device. The received signal strength level may be measured at the second device. In addition, the first device may be re-provisioned. For ...

02/01/07 - 20070026861 - Method of triggering a handover
A method of triggering a decision of a wireless communication system on a handover and/or of triggering a handover by means of at least one trigger signal. Using a generic algorithm for triggering handover trigger signals. The algorithm uses generic parameters representing at least an aspect of the quality of ...

02/01/07 - 20070026860 - Mobile communication terminal and communication control method
A mobile communication terminal includes a first communication section which receives a signal transmitted of a first communication system in a first cycle, a second communication section which receives a signal of a second communication system in a cycle, a reception-halt control section which controls so that the first communication ...

01/25/07 - 20070021120 - Inter-system handover using legacy interface
Techniques for performing inter-system handover are described. An Access Gateway (AGW) sends a message requesting handover of a user equipment (UE) from a first radio access network (RAN) to a second RAN. The message is sent to an Inter Access System (inter-AS) Anchor for the first RAN communicating with an ...

01/25/07 - 20070021119 - Apparatus and method for implementing handoff between heterogeneous networks in a wireless communication system
An apparatus and method for implementing a vertical handoff between a WLAN and a broadband wireless communication network are provided. The vertical handoff apparatus includes a base station (BS) of the broadband wireless network and at least one access point (AP) of the WLAN within the cell coverage area of ...

01/18/07 - 20070015511 - Method for determining handoff in a mobile communication system, and system supporting the same
A method for determining a handoff of a mobile station (MS) in a mobile communication system. In the method, a serving base station (BS) measures a level of a first uplink signal by monitoring an uplink to the MS. The serving BS receives a level of a second uplink signal, ...

01/18/07 - 20070015510 - Method and system for handover negotiation optimization for wireless system
A method and system for processing a handover request in a wireless network. The method includes sending a first message by a first base station to a mobile station. The first message includes a first handover request. Additionally, the method includes receiving a second message by the first base station ...

01/18/07 - 20070015509 - Method and system for mobile station handovers with different priorities in wireless networks
A method and system for processing a handover request in a wireless network. The method includes receiving a first message from a first base station by a mobile station. The first message includes a handover request, the handover request includes a priority indicator, and the priority indicator indicates a priority ...

01/18/07 - 20070015508 - Method of adaptive power control
In a mobile communication system, an adaptive power control method may include determining by a network unit (209) of the mobile communication system a message type (252) of a control message (250) transmitted to a mobile unit (202), determining message content (254) of the control message, determining whether the control ...

01/11/07 - 20070010251 - System and method for performing handover between frequency assignments in a communication system
A method and system for performing an inter-FA handover in a communication system are provided. An MS receives from a serving BS neighbor BS information including a BS ID of at least one neighbor BS and a reference signal index of a reference signal used in the at least one ...

01/11/07 - 20070010250 - Method of hard handover in a wireless communication system
The present invention provides a method of wireless communication with a mobile unit and a base station router. The method may include providing, over a first channel, configuration information indicative of a second channel associated with the base station router and the mobile unit. The method may also include providing ...

01/04/07 - 20070004412 - Method for inter-system inter-msc handover to uma
Disclosed is a method of executing a handover in a system including a core network comprising two mobile services switching center. Both mobile services switching center can be accessed to by a cellular access as well as by a non-cellular access. The system further includes a terminal which can access ...

01/04/07 - 20070004411 - Mid-call hand-off between end user terminals
A method of supporting a mid-call hand-off feature (22) is provided in a telecommunications network (40). The method includes: connecting a first call through a first switching facility (20) of the telecommunications network (40) such that a first party served by the first switching facility (20) and a second party ...

01/04/07 - 20070004410 - Mid-call hand-offs in telecommunication networks
A method of supporting a mid-call hand-off feature (22) is provided in a telecommunications network (40). The method includes: connecting a first call through a first switching facility (20) of the telecommunications network (40), the first call being connected between a first party served by the first switching facility (20) ...

01/04/07 - 20070004409 - Mobile station and communication system
A mobile station according to the present invention includes: a first measuring means (32) for measuring received power strength and propagation loss of signals transmitted from a communicating first base station; a second measuring means (32) for measuring received power strength and propagation loss of signals transmitted from a second ...

12/28/06 - 20060293055 - Rrc signalling for fast hs-dsch serving cell change
When a Universal Terrestrial Radio Access Network (UTRAN) receives an indication on Layer 3 (L3) (an L1/L2 indication is also possible) from the User Equipment (UE) that it is switching the High Speed-Data Shared Channel (HS-DSCH) reception to another cell in the active set (AS), the UTRAN sends a reconfiguration ...

12/28/06 - 20060293054 - Radio control apparatus and link securing method
A radio control apparatus 10 is provided with a call management system 18 configured so that, when a mobile station in communication with a first base station by a first communication link requests diversity handover with a second base station, the call management system 18 retrieves a potential information rate ...

12/28/06 - 20060293053 - Silent wireless communication system and method
A method of processing data through handover communications in one or more mobile devices that is in a standby mode within a cell of a mobile telecommunications network according to neighboring lists of other mobile devices. In the method, the data is processed from an initiating mobile device to a ...

12/14/06 - 20060281462 - Method for performing handover in a mobile communication system
Disclosed is a method for determining handover of a mobile station by a mobile station in a mobile communication system. The method includes measuring a downlink reference signal intensity of a serving base station; determining to perform scanning for measurement of reference signal intensities of the serving base station and ...

12/14/06 - 20060281461 - Method for handoff in mobile communication system
Disclosed is a handoff method connected with resource allocation in order to prevent QoS degradation, which may occur during or before/after a handoff on account of channel state change resulting from the mobility of a radio communication apparatus. To this end, a serving base station currently-connected to the radio communication ...

12/14/06 - 20060281460 - Method for sending downstream traffic from a switching center
For improving data flow during a handover it is proposed to send downstream traffic (6a,b,c,d) from a switching center (2) over at least two paths over base stations (3a, 3b) to a mobile terminal (4) by checking for a change of the base station (3a, 3b) serving the mobile terminal ...

12/14/06 - 20060281459 - Utilizing a same target cell during circuit-switched and packet switched handover
In case of both circuit-switched and a packet-switched connection handover from a source (200) to a target (510) radio access network or base station subsystem a new target ID indication message (415.1; 415.2) is sent to a core network node (422) either from a core network element (215) or from ...

12/07/06 - 20060276192 - Seamless handoff across heterogeneous access networks using a handoff controller in a service control point
In a telecommunications network in which a mobile handset is capable of communicating in both an IP-domain and a non-IP domain, the handoff of an existing communications session between the mobile handset and a fixed user is facilitated by a handoff controller implemented in a service control point. The handoff ...

12/07/06 - 20060276191 - System and method for performing handover in a mobile communication system
Provided is a method for determining handover of a mobile station by a serving base station in a mobile communication system. The method includes receiving traffic quality information from the mobile station; determining whether the traffic quality information satisfies a preset setting condition; if the traffic quality information satisfies the ...

12/07/06 - 20060276190 - Method and apparatus for implementing a handoff between radio access networks deployed under different radio access technologies
A method and apparatus for implementing a handoff between radio access networks (RANs) deployed under different radio access technologies (RATs) are disclosed. A wireless transmit/receive unit (WTRU) is equipped with at least two radio units to support the RATs. Each RAN sends a list of co-located RANs in the coverage ...

12/07/06 - 20060276189 - Supporting inter-technology handover using ieee 802.16 handover procedures
A method for performing an inter-technology handover in a wireless communication system in which a mobile subscriber station (MSS) changes base stations (BS) begins by locating one or more target BSs that the MSS can handover to. The technology used by each target BS is identified, and the technology supported ...

11/30/06 - 20060270407 - Wireless communication system, wireless communication apparatus, wireless base station apparatus, and method for controlling handoffs
A wireless communication system, comprises: a wireless base station apparatus that sends base station information including information on a service that can be provided by a neighbor wireless base station apparatus to a communication area of the wireless base station apparats; and a wireless communication apparatus that receives t base ...

11/30/06 - 20060270406 - Hard handover method and radio network controller therefor in a mobile telecommunication system
A hard handover method and a Radio Network Controller (RNC) therefor in a mobile telecommunication system are provided which can improve the performance of an interfrequency hard handover. The RNC stores information about a timing difference between first and second Node Bs for supporting a soft handover. When receiving, from ...

11/16/06 - 20060258356 - Using an access point name to select an access gateway node
A first access point name associated with an access gateway node involved in a data session of a mobile station over a first type of wireless network is received. In response to handoff of the mobile station from the first type of wireless network to a second, different type of ...

11/16/06 - 20060258355 - Method and system for integrating media independent handovers
A method and system for integrating media independent handover (MIH) under IEEE 802.21 and unlicensed mobile access (UMA) are disclosed. A public land mobile network (PLMN) and an unlicensed mobile access network (UMAN) are concurrently deployed. UMA is supported such that a multi-mode wireless transmit/receive unit (WTRU) may access the ...

11/16/06 - 20060258354 - Method for restricting mobility in wireless mobile systems
A method of restricting mobility in a Wireless Mobile System for Wireless Local Loop applications. Although this method is applicable to all wireless technologies, it provides specific improvements to mobility restriction in CDMA systems. Mobility of a subscriber is restricted to a predefined set of cell (sectors) called the Home-cell ...

11/09/06 - 20060252428 - Seamless interfrequency handoff in a high data rate wireless system
A high data rate system capable of inter-frequency handoffs with little or no interruption in data service. The access network sends data from the first sector to the access terminal at the first frequency. The access terminal measures a parameter of a signal received at the access terminal from the ...

11/02/06 - 20060246902 - Inter-system handover
A method for performing an inter-system handover of a user terminal in a telecommunications network comprising a first telecommunications system operable according to a first protocol and comprising a first service subsystem and a first access subsystem and a second telecommunications system operable according to a second protocol and comprising ...

11/02/06 - 20060246901 - Supporting a decision by a mobile terminal whether to use an available access point
For supporting a decision by a mobile terminal whether to connect to an available access point for accessing a desired service, the mobile terminal receives from the access point reputation information on the access point and determines whether the reputation information makes a connection to the access point appropriate. A ...

10/26/06 - 20060240831 - Method, apparatus and computer program providing high-speed downlink packet access (hsdpa) cell change without rrc acknowledgment
Handing over a mobile terminal MT from a serving base station BS to a target BS employs a handover window HW during which the MT monitors a shared control channel of the target BS. The network determines whether to handover based on a MT measurement report. Once handover is determined, ...

10/26/06 - 20060240830 - Apparatus, method and computer program providing fast, zero data loss high speed data packet access (hsdpa) serving cell change
To handover a mobile terminal from a serving base station BTS to a target BTS, a radio network controller RNC: 1) informs the mobile terminal of the pending handover so it can preconfigure to communicate with the target BTS; 2) indicates to the serving BTS which will be the last ...

10/26/06 - 20060240829 - Discovery of neighbour cell beacon frequencies in mobile networks
In order to discover at least part of a frequency list used by an active wireless device in a cellular communications network for neighbour cell signal measurements, measurement reports are extracted from messages carrying reports of measurements relating to propagation of wireless signals between the network and the device. Additional ...

10/26/06 - 20060240828 - Wireless handoffs between multiple networks
The disclosure is directed to a mobile communication device, and method for handing off a mobile communications device between two networks. A processor in the mobile device may be used to establish a network connection with a server in a first network while supporting a call in a second network. ...

10/26/06 - 20060240827 - Apparatus and method for performing handoff with a mobile station having a smart antenna
A mobile station configured to perform a soft handoff. The mobile station comprises a receiver and a smart antenna module. The receiver is configured to receive a plurality of similar RF signals that comprises a plurality of first RF signals generated by a serving base station or first base station ...

10/26/06 - 20060240826 - Communication system and handover communication method
When a downlink transmission is performed in the handover state in a mobile communication system having a mobile station, base stations and a base station controller, user data from the base station controller is transmitted from a first base station to the mobile station and error correction code for the ...

10/26/06 - 20060240825 - Mobile communication method, mobile communication apparatus, home agent apparatus, access router information server apparatus, and mobile communication system
A mobile communication apparatus includes a mobile IP/Fast Mobile IP processing part, an access router searching part for acquiring information on access router apparatuses, a Fast Mobile IP compliance determining part for determining whether the access router apparatuses comply with Fast Mobile IP, and a Fast Mobile IP control part ...

10/19/06 - 20060234710 - Method for performing roaming in dual mode mobile terminal capable of preventing ping-pong phenomenon
A method for performing roaming in a dual mode mobile terminal in such a manner that a ping-pong phenomenon, occurring under a weak electric field between communication networks providing communication services using different mobile communication techniques can be prevented. To this end, a communication path connected between modems performing a ...

10/19/06 - 20060234709 - System, devices, methods and programs for reducing service interruption during routing area change
Before execution of a routing area update (RAU) procedure associated with a handover of a mobile station (40) from a source cell to a target cell in a mobile telecommunication system, a handover required message (14) is sent to a core network (CN) from a source base station (16) in ...

10/19/06 - 20060234708 - Method, system, network entity, and end-user terminal for controlling a handover of a cellular terminal
A method, a system and an end-user terminal for providing a handover between a digital unidirectional data communication domain and a digital bi-directional data communication domain is disclosed. Exemplary domains can be a broadcast network such as IP over DVB (Digital Video Broadcasting) network, or a broadcast mode, in further ...

10/19/06 - 20060234707 - Method and system for recovering from hand-off fail for use in cdma 2000 1xev-do system
A multimedia mobile communication system for recovering a handoff failure comprises: a hybrid access terminal; a base station transceiver subsystem for transmitting and receiving the voice and the data; a base station a mobile switching center a 1xEV-DO transceiver, and an access network controller for controlling the handoff by transmitting ...

10/19/06 - 20060234706 - Collective notification of node reset to subset of connections in radio access network
Upon reset of a control node (261) of a radio access network (24) which controls connections with user equipment units (30) in a connected mode, a message (102) indicative of the reset is sent between nodes of the radio access network. The message results from occurrence of a reset procedure ...

10/12/06 - 20060229075 - Supporting handover of mobile terminal
The present invention relates to supporting a handover of a mobile terminal. Preferably, the present invention performs a scan of a neighboring network different from a current network of the mobile terminal to determine the presence of an accessible link of the neighboring network for performing a handover, wherein the ...

10/12/06 - 20060229074 - System and method for an inter-system voip handoff
The present disclosure relates generally to systems and methods for an inter-system VoIP handoff. In one example, a method for handing off a VoIP call from an evolution-data only (EV-DO) network to a non-EV-DO network includes determining whether the VoIP call needs to be handed off to the non-EV-DO network, ...

10/12/06 - 20060229073 - Transmitting handoff messages using higher power
A wireless communication network (20) includes a power management module (50) for controlling the power of transmission between a base station (38) and a mobile station (40). Bearer traffic (e.g., voice or data signals) are transmitted using a first transmission power limit. Handoff messages are transmitted using a second, higher ...

10/05/06 - 20060223538 - Mobile communications system, radio network controller, and active set control method
An active set control method for handover operation in a CDMA communications system in which propagation conditions of an uplink channel and a downlink channel for an access link of cell are different, provides that when a cell is deleted from the active set based on a request of a ...

10/05/06 - 20060223537 - Mobile communication system, relief method of competition between downlink rrc message and inter-cell movement of user equipment, and radio network controller
The present invention provides a relief method of competition between a Down Link RRC message and inter-cell movement of user equipment which can continue communication even when acknowledgment of the Down Link RRC message cannot be performed. An RLC layer of the radio network controller (RNC) divides a Down Link ...

10/05/06 - 20060223536 - Method and apparatus for handover in a wireless communication device between wireless domains
A method and apparatus for handover in a wireless communication device between wireless domains is described. In one example, a signal employing a short-range wireless protocol is detected at the wireless communication device. For example, the short-range wireless protocol may be a near-field communication (NFC) protocol, a radio frequency identification ...

10/05/06 - 20060223535 - Hard handoff procedure for dedicated and high speed shared channels
A wireless communication network (20) utilizes a hard handoff procedure for switching between cells serving a mobile station (40). In a disclosed example, the existing link between the mobile station (40) and a serving base station (38) is not released until a new link between a target base station (32) ...

10/05/06 - 20060223534 - Methods for informing subscribers of adjacent sites
Methods for informing a mobile device of adjacent sites in a RF communication system wherein the RF communication system comprises a first network and a second network are disclosed. A mobile device in the first network of the RF communication system updates a signaling gateway with position information of the ...

10/05/06 - 20060223533 - Mobile communication system, radio base station containing control device in the mobile communication system and control method thereof
A mobile communication system includes: a mobile terminal unit (UE); a radio base station (Node B) for performing communication with the mobile terminal unit via radio line; a radio controller (RNC) controlling the radio base station and physically divided to first control means (CPE) for performing signaling transfer control and ...

10/05/06 - 20060223532 - Method for user equipment mobility management and communication system
The present invention relates to a method of UE mobility management and a mobile communication system of implementing this method, where the system includes: a core network communicating with the universal terrestrial radio access network (UTRAN) via the Iu interface; UTRAN consisting of multiple radio network systems (RNS) and communicating ...

09/14/06 - 20060205407 - Method and system for triggering handoff of a call between networks
A method for handing off a call between networks includes monitoring a quality of a first link between a mobile station and a wireless local area network (WLAN) when the mobile station is actively connected with the WLAN on a call and monitoring a quality of a second link between ...

09/14/06 - 20060205406 - Adaptive handover measurement interval
Apparatus and methods are provided for adaptively determining a handover measurement interval. Power savings are achieved when a mobile terminal in a digital broadcast broadband network does not constantly attempt to measure the signal strength of nearby cells. By determining cell parameters, such as size and carrier frequency, and also ...

09/07/06 - 20060199585 - Classmark provision for terminal-initiated handover
A terminal device, network device and methods provide classmark information to an access network. The classmark information is added to a handover request message and signaled to the access network. Thereby, exchange of additional messages for keeping classmark information up-to-date is not required and it is ensured that the access ...

09/07/06 - 20060199584 - Distributed radio units
A method in a communication system comprising a access network with Radio Network controllers (RNC) and radio base stations (RBS or Node B) consisting of main units (MU) which performs base band signal processing and one or more radio remote units (RRUs) which converts between baseband and radio frequencies and ...

08/31/06 - 20060194582 - Handover between mobile communication networks
The invention provides a method of handover from an active network to a selected one of a plurality of potential other networks. In addition to the overall solution, the solution proposed has several individual aspects. All subsidiary aspects are related to the common problem mentioned above and sharing the underlying ...

08/31/06 - 20060194581 - System and method for controlling an operational mode of a mac layer in a broadband wireless access communication system
A method for controlling operation modes of a medium access control layer by a mobile subscriber station in a broadband wireless access communication system including the mobile subscriber station and a serving base station providing service to the mobile subscriber station is provided. The method includes the steps of: mode-transiting ...

08/31/06 - 20060194580 - Mobile radio communication system
A mobile radio communication system having a mobile radio communication network and a mobile radio subscriber appliance, wherein a unit in the network layer of the core network of the mobile radio communication network is configured to transmit to the mobile radio subscriber appliance a first message, based on an ...

08/31/06 - 20060194579 - Method of mobility support for wireless networks
In the method of supporting mobility in wireless networks, a message is received in accordance with a wireless communication protocol that does not specify a message for mobility support. However, the received message is interpreted as a request for handoff, and at least one message is sent in support of ...

08/24/06 - 20060189318 - System and method for controlling an operational mode of a mac layer in broadband wireless access communication system
A method for controlling operation modes of a medium access control layer by a mobile subscriber station in a broadband wireless access communication system including the mobile subscriber station and a serving base station providing service to the mobile subscriber station is provided. The method includes the steps of: mode-transiting ...

08/24/06 - 20060189317 - Mobile communication system and wireless base station device
A mobile communication system with which the time required for handover is short and which has a superior network operating efficiency. In the mobile communication system of the present invention, each wireless base station measures the strength of the radio waves received from a wireless terminal irrespective of whether or ...

08/24/06 - 20060189316 - Mobile assisted handoff system and method
A system and method for improved mobile assisted handoff in a digital cellular communication system that gives the mobile station the ability to synchronize to candidate base station transmissions in order to read the transmitted digital voice color code (DVCC) of the candidate station. This process is performed during the ...

08/17/06 - 20060183481 - Base station transmission power control system, mobile station and base station
In soft hand over in a code division multi access mobile radio communication system, interference in a down link caused by transmission from a plurality of base stations for one mobile station, can be restricted. Control of transmission power is performed according to command from the mobile station only in ...

08/17/06 - 20060183480 - Mobile communication system
A mobile communication system for providing mobile communication service by radio to a mobile station is disclosed. The mobile communication system comprises base stations having a function of controlling hand-overs and in-coming and out-going calls necessary for providing the mobile communication service, and a multi-cell controlling station having a function ...

08/17/06 - 20060183479 - Mobile node for discovering neighbor networks in heterogeneous network environment and network discovery method
A network discovery method in a heterogeneous network environment. The network discovery method includes receiving neighbor information indicating neighbor PoAs from a MIIS entity at a mobile node that includes a plurality of communication interface sections capable of communicating with different networks; checking at least one neighbor PoA using the ...

08/17/06 - 20060183478 - System and method for handling media in a seamless handoff environment
A method for handling media in a make-before-break handoff between wireless networks is provided that includes communicating with a mobile station to facilitate a session handoff between two call legs of a session. The method also includes identifying a relevant frame of one of the legs, performing a cross correlation ...

08/10/06 - 20060178147 - System and method for providing access points to assist in a handoff decision in a wireless environment
According to a particular embodiment, a method for assisting in a handoff is provided that includes receiving signaling from one or more access points, which may transmit information to a mobile station. The information may be used to execute a handoff from an enterprise network to a cellular network or ...

07/27/06 - 20060166672 - System and method for performing network re-entry in a communication system
In a communication system, a mobile station (MS) sends a target base station (BS) a notification indicating that it is to perform a handover from a serving BS to the target BS. The target BS transmits to the MS handover process optimization information indicating a possibility of omitting at least ...

07/27/06 - 20060166671 - Handoff mechanism for cdma wireless network using dynamically scalable traffic channels
A handoff mechanism for a mobile station and wireless network preferably operating in a ZxEV-DV mode, using scalable traffic channels where Z is a multiple of a 1xEV-DV channel, including a distance-based handoff. The disclosed handoff mechanism can be used in conventional wireless telecommunications systems. ...

07/27/06 - 20060166670 - Information disclosure system
An object of the invention is to provide an information release system capable of limiting information release only to a mobile station existing in a specific range area. A mobile station (12) includes an input unit (101) for entering release range information; a position information detection unit (102) for detecting ...

07/20/06 - 20060160539 - Handoff control methods and related devices
Handoff control methods. User equipment measures the strength of a first pilot signal in an active set. The first pilot signal is transmitted from a base station currently providing services to the user equipment. Handoff parameters for handoff are dynamically set according to the strength of the first pilot signal, ...

07/13/06 - 20060154666 - Portable terminal
When a communication regulation determining block determines that E-mail communication is regulated when an E-mail processing block prepares for communication or initiates communication, information indicative of alternative communicating section using another communication path in which communication is not regulated is displayed on a user interface section. Therefore, it is possible ...

07/13/06 - 20060154665 - System and method for call handoff between circuit switched and packet data wireless networks
The hybrid mobile terminal is engaged in an existing call through a serving one of a circuit switched or packet data wireless networks. The mobile terminal places a new call through the target one of the wireless networks, the new call having a predetermined called party identifier. In response to ...

07/13/06 - 20060154664 - Radio communication terminal and control method
A wireless communication terminal, which performs wireless communication with base stations using each of a first communication method and a second communication method and enables to be in an idle state with both methods, having a setting section that sets a suspend time for detecting an incoming call from the ...

07/06/06 - 20060148478 - System and method for transmitting/receiving automatic repeat request reset information in a communication system
A method for transmitting/receiving Automatic Repeat reQuest (ARQ) reset information in a communication system. A mobile station (MS) performs handover to a target base station (BS). Upon detecting the handover of the MS, the target BS transmits ARQ reset information representative of information related to ARQ reset to the MS. ...

07/06/06 - 20060148477 - Presence services in a wireless communications network
A method of providing presence services in a mobile communications network, the method comprising: receiving a presence update message from a first user of a mobile device, said presence update message including a device activity presence attribute indicating activity of the mobile device; and transmitting the device activity presence attribute ...

07/06/06 - 20060148476 - Hand-off technique for a wireless network
A technique that relates to use of a known messaging sequence, e.g., ISANSWER messaging in the IS-41 protocol, in a heretofore unknown manner to improve hand-off procedures that may be established between a serving (anchor or intermediate) mobile switching center and a target (or border) mobile switching center is provided. ...

07/06/06 - 20060148475 - Inter-network handover in a packet radio system
A method (400) and apparatus (501) facilitate a session handover between a first site and a second site. A wireless communication unit such as a mobile station (102), user equipment (202, 302) can move from one site to another site whereupon new identifiers can be setup for the new site. ...

06/29/06 - 20060142009 - Prevention of unnecessary hand-over caused by fading
A hand-over control method is disclosed to control the change of connections between a radio communication terminal and a plurality of radio communication base stations for radio communication. The received power of a signal from a radio communication base station in a cell that that is subject to the influence ...

06/29/06 - 20060142008 - Apparatus and method for handover in mobile communication system
An apparatus and method for a handover in a mobile communication system are provided. The handover apparatus includes an interface unit for setting a first path used before the handover and a second path used after the handover, for the mobile terminal undergoing the handover. A controller determines whether or ...

06/22/06 - 20060135165 - System and method for proactive, early network switching
A mobile terminal for reduction of data loss during transitioning of the mobile terminal between network devices includes a controller. The controller is capable of transmitting a request to transition and receiving queued data from an original network device prior to transition from the original network device to a target ...

06/22/06 - 20060135164 - Handover method and system in a broadband wireless access communication system
Disclosed is a hard handover method and system for use in a Broadband Wireless Access (BWA) communication system. The method and system includes dividing a data transmission field for mobile stations (MSs) into a handover field and a normal user field, allocating at least one subchannel in the normal user ...

06/22/06 - 20060135163 - Wireless base station and mobile station
The occurrence of problematic data portions during handover is prevented by a wireless base station in a wireless communication system wherein mobile stations to be transmitted to are selected successively from a plurality of transmission destination candidate mobile stations and data transport to the selected mobile station is performed via ...

06/22/06 - 20060135162 - Methods and apparatus for flexible forward-link and reverse-link handoffs
The disclosed embodiments provide for methods and systems for selecting sectors for handoff in a communication system. According to one aspect, the method includes monitoring an indicia of transmit power on a plurality of RL control channels directed to a plurality of sectors, and selecting one of the sectors as ...

06/22/06 - 20060135161 - Method for detecting reverse link collisions on an air interface
The present invention provides a method of wireless telecommunication. The method includes accessing information indicative of a first mobile unit in response to a signal from the first mobile unit, accessing information indicative of at least one second mobile unit, and comparing the information indicative of the first and second ...

06/15/06 - 20060128386 - Mobile communication system, mobile station and diversity handover branch control method
A branch candidate selecting method by a mobile station and a diversity handover control method on a network side in DHO performance are provided which consider a maximum cable branch number and maximum radio branch number of the mobile station, when the mobile station detects the plurality of addition branch ...

06/15/06 - 20060128385 - Method and system for mipv4-based fast handoff between heterogeneous networks
Disclosed herein is a method and system for Mobile Internet Protocol version 4 (MIPv4)-based fast handoff between heterogeneous networks. The method includes the first step of an Mobile Station (MS) acquiring information about a second Foreign Agent (FA) pertaining to a second wireless network to be newly accessed from a ...

06/15/06 - 20060128384 - Location detection and network awareness for multi-mode/multi-radio mobile devices
The present invention provides methods and devices using location detection to enable MMMDs to activate and tune to appropriate radios and networks. Some preferred embodiments use radio frequency identification (“RFID”)—based location detection. Preferably, the location detection occurs at or near wireless domain boundaries. Some implementations employ proximity/boundary detection to enhance ...

06/08/06 - 20060121901 - Handover method and base station control apparatus
When handover control is performed in a wireless communication system in which a plurality of base stations and a plurality of mobile stations communicate wirelessly, the necessary radio resources are secured beforehand in a handover-destination radio base station before handover is performed, and handover is executed thereafter. In order to ...

06/08/06 - 20060121900 - System and method of switching between calls when handing off a mobile station out of a wlan
A system and method switches between an active call and a call on hold when handing off a mobile station (204) from a Wireless Local Area Network (WLAN) (202). A Handover Starting message is received from a mobile station. The Handover Starting message includes at least one first identifier. A ...

06/01/06 - 20060116126 - Radio communication terminal and handoff control method
A radio communication terminal has a communication section which communicates with a base station, and a control section which controls a handoff between a plurality of base stations. The communication section receives a control information indicating whether or not a neighboring base station broadcasts a service information from the neighboring ...

05/25/06 - 20060111109 - Broadcasting channel handover in mobile communication terminal
A mobile communication terminal for receiving a multimedia broadcast signal comprises a controlling unit adapted to extract channel information associated with a first mobile communication terminal location from a signal at the first mobile communication terminal location. The mobile communication terminal also comprises a comparing unit adapted to compare extracted ...

05/25/06 - 20060111108 - System and method for performing inter-layer handoff in a hierarchical cellular system
To take advantage of hierarchical cell layers, an inter-layer handoff system determines a cell layer for servicing a wireless unit at least as a function of the duration that the wireless unit is in a cell or set of cells of a cell layer. For example, as a function of ...

05/18/06 - 20060105768 - Handoff methods, and devices utilizing same
A handoff method. A mobile station calculates and records the strength of a pilot signal from a cell as reference strength if a handoff occurs in a first system. The mobile station further adjusts the reference strength according to the effect caused by forward and reverse links between a base ...

05/11/06 - 20060099949 - Handover system and method in heterogeneous network
A handover system and method in a heterogeneous network are provided. The handover system includes a first network for providing a radio resource using a first radio frequency bandwidth. A first apparatus of a cellular network is connected to the first network through a wired network. A mobile station accesses ...

05/11/06 - 20060099948 - Media-independent handover (mih) method featuring a simplified beacon
A method for implementing a Media Independent Handover (MIH) service between one or more of a heterogeneous and a non-heterogeneous network comprises providing an MIH beacon from one or more of a network (Net) or a mobile node (MN); acknowledging a receipt of the MIH beacon by another of the ...

05/04/06 - 20060094431 - Method, system and mobile station for handing off communications from a cellular radio access network to an unlicensed mobile access network
A method, system and mobile station for handing off communications from a cellular radio access network, such as a code division multiple access (CDMA) radio access network, to an unlicensed mobile access network (UMAN) are provided. The handoff may be effected by a signaling sequence between the mobile station, an ...

05/04/06 - 20060094430 - Wireless mobile station call handoff
Communication handoff in a radio telecommunications network in which a quality measurement between a mobile wireless device and a first fixed transceiving entity in the radio telecommunications network is obtained in readiness for potentially handing off the communication. A quality driven handoff is initiated when the quality measurement falls within ...

04/27/06 - 20060089143 - Devices, softwares and methods for handling off live calls between legs of csv and vox modalities
Devices, softwares methods hand off a live call from an original leg of a first modality (such as Circuit Switched Voice) to an alternate leg of another modality (such as Voice over Internet Protocol). An original leg of a call is established using the first modality. Then the alternate leg ...

04/27/06 - 20060089142 - Active set update (asu) with high speed downlink shared channel (hs-dsch) information
Because the current RRC: ACTIVE SET UPDATE message presently used in soft handover does not contain HS-DSCH related information, which could be utilized for a Serving HS-DSCH cell change, a separate Radio Bearer Control procedure is needed between the UE (10) and the RNC (20) for carrying out the Serving ...

04/27/06 - 20060089141 - Method and apparatus for allocating a beacon signal in a wireless communications network
A method and apparatus for transmitting beacon signals in a wireless communications network. For a given cell site, a single frequency may be used for the beacon signal by assigning different beacon signal time slots to different sectors of the cell site. During one time slot, the beacon signal is ...

04/20/06 - 20060084439 - System and method to facilitate inter-frequency handoff of mobile terminals in a wireless communication network
A system and method for facilitating inter-frequency handoff of a mobile node (102) in a wireless communication network (100). The system and method permit a mobile node (102), equipped with a single receiver, to perform handoffs seamlessly from one infrastructure node (106-1) to another infrastructure node (106-2) without having to ...

04/20/06 - 20060084438 - Method and system for controlling hard handoff in mobile network
A method and system for controlling an inter-mobile switching center hard handoff in a mobile network are provided. The method includes recognizing, at a terminal, a target cell whose pilot strength is equal to or higher than a candidate qualification reference value and transmitting a pilot strength measurement message to ...

04/20/06 - 20060084437 - Soft handover control method, soft handover control program and mobile communication terminal device
When the calling out of a mobile communication terminal connected to a base station by a RL causes a control unit in the terminal to start a call connection sequence, and the electric field level measurement of a base station pilot signal after transition to a CELL_DCH state causes a ...

04/20/06 - 20060084436 - Methods and apparatus for inter-bsc soft handoff
A method for performing a soft handoff, including establishing a first control channel via a network between a first BSC and a first BTS. The method also includes establishing a second control channel via the network between a second BSC and a second BTS. A call between a mobile station ...

04/20/06 - 20060084435 - Signaling mechanism for handover in digital broadcasting
A time slicing digital broadcast system includes a dynamic handover process switching a handheld terminal receiving services in a first signal to a second signal providing the same services, while roaming among cells in the digital broadcast system. The terminal takes into account the varying intervals between bursts in the ...

04/13/06 - 20060079234 - Handover process free of short-break and packet loss in cdma mobile communication system on ip network
When a mobile node makes handover, the mobile node issues a binding update message and sends the binding update message to a base transceiver station from which handover is made. When the base transceiver station from which handover is made sends radio data to the mobile node, it also transfers ...

04/13/06 - 20060079233 - Method and associated apparatus for increment accuracy of geographical foreign agent topology relation in heterogeneous access networks
One aspect of the present invention regards a method of coordinating the handoff of a mobile carrier between a first access network and a second access network, the method including handing off from a first access network that the mobile carrier is currently operating within to a second access network ...

04/13/06 - 20060079232 - Wireless lan handover method, wireless terminal, program product for use in the wireless terminal, and wireless communications system
A wireless terminal is associated with a Basic Service Set (BSS) or an Independent Basic Service Set (IBSS). The wireless terminal notifies the currently associated target of transition into power saving mode, before migrating from the currently associated BSS or IBSS to another BSS or IBSS. Subsequently, the wireless LAN ...

04/06/06 - 20060073828 - Hard handover method, controller and communication system
The invention is related to a controller of a communication system, the controller comprising: means for determining user terminal time delay between delivery and acknowledgement of a transmission; means for conveying the user terminal time delay; means for calculating switching time delay; and means for transferring user terminal data conveyance ...

04/06/06 - 20060073827 - System and handover mechanism in frequency multilple band environment and equipment therefor
A mechanism for supporting the decision on performing a communication connection changeover of a subscriber terminal in a wireless communication network, in particular in a multiple band WLAN, is proposed. The subscriber terminal is a to communicate with an access node on two or more frequency bands. AP related communication ...

03/30/06 - 20060068789 - Radio configuration selection during inter-bs call handoff
A handoff method in a wireless communication network enables radio configuration selection information to be exchanged between target and source base stations (BSs) involved in the handoff. For example, a source BS may determine that a given mobile station's Forward Supplemental Channel (F-SCH) should be handed off to a target ...

03/30/06 - 20060068788 - Transfer of a service session with a mobile from a first wireless local area network to one of its neighbours
A method is provided of transfer of a service session with a mobile terminal from a first wireless local area network to one of its neighbours in a telecommunications system. According to the method, temporary credentials are provided to the mobile terminal, each being usable for access to a corresponding ...

03/23/06 - 20060063530 - Method for cell locking in a wireless communication device
A method is provided for fixing the use of a wireless communication device in certain cell areas. The method comprises: determining the predetermined number of strongest cells and checking each of the cells in descending order of received signal level to determine whether this cell belongs to one of the ...

03/16/06 - 20060058031 - Mobile communication station , communication method and communications system
A mobile station, a telecommunications method, and a telecommunications system employing a MT-TA Interface description capable of dealing with a handover between different wireless communications methods. When a wireless channel control part receives a handover request from a corresponding mobile network, the wireless channel control part communicates with a corresponding ...

03/09/06 - 20060052108 - Methods and apparatus of improving inter-sector and/or inter-cell handoffs in a multi-carrier wireless communications system
A wireless communications system, e.g., an OFDM system, uses a plurality of carrier frequencies each with an associated frequency band. A base station sector transmitter in the system transmits ordinary signaling, e.g., user data, in its own assigned band. In addition the sector base station transmitter periodically transmits beacon signals ...

03/09/06 - 20060052107 - Mobile communication system, handover controller, and handover controlling method
A mobile communication system of the present invention includes a handover control unit and a packet transfer network, which are independent of each other. The handover control unit selects a handover control system in accordance with a QoS. The handover control unit issues an instruction to the packet transfer network ...

03/09/06 - 20060052106 - Method and apparatus for performing fast handover
A method of performing, and an apparatus to perform, handover in a mobile node, the method including selectively performing the handover according to neighbor information received from a predetermined access point, wherein the neighbor information comprises information regarding at least one access point neighboring the predetermined access point. ...

03/09/06 - 20060052105 - Handover method used in a wireless communication system
A handover method used in a wireless communication system for handing over a mobile device from a first base station to a second base station is provided. Firstly, a first signal power between the mobile device and the first base station as well as a second signal power between the ...

03/09/06 - 20060052104 - Wireless communication terminal and handoff determination method
A wireless communication terminal includes a measurement section that measures quality of a signal transmitted from a base station, a determination section that determines whether or not handoff is to be performed based on a measurement result of the measurement section and a criterion of the determination of the handoff, ...

03/02/06 - 20060046722 - Handover method for next generation mobile communication system having overlapping area
Disclosed is a handover method for an IP-based next generation mobile communication system. With a handover method including 1) determining whether or not a predetermined mobile terminal goes into the overlapping area; 2) starting a Layer 3 (L3) handover operation between the neighboring access routers as the mobile terminal goes ...

02/23/06 - 20060040667 - System and method for deploying application programs
A communication system includes a development sector for registering a plurality of wireless devices, a business sector for controlling utilization of an application program and for receiving application data, a service sector for deploying the application program and for providing the application data to the business sector in accordance with ...

02/23/06 - 20060040666 - Mobile assisted handoff in wireless local area network
A method in a wireless communication device communicating in a wireless local area network, including determining, at layer 2 architecture of the wireless communication device, error information for a communication link between another device in the wireless local area network and the wireless communication device, and determining whether to handoff ...

02/16/06 - 20060035639 - System and method for handoff between base stations
A system and method for handoff are provided. A mobile station performs a make-before-break handoff of a control channel between a serving and target base station and a break-before-make handoff of a traffic channel between the serving and target base stations. The traffic channel handoff is performed after the control ...

02/16/06 - 20060035638 - Wireless communication terminal and handoff judgment method
A wireless communication terminal, which performs wireless communication with base stations using each of a first communication method and a second communication method and enables to in an idle state with both methods, having a measurement section that measures quality of a signal transmitted from the base station, a handoff ...

02/09/06 - 20060030323 - Base station apparatus and mobile communication system
Disclosed is a handover method in radio communication. A base station apparatus monitors the receiving state of a terminal, detects, based upon the receiving state, whether the terminal is one in which there is a possibility that loss of a call or a decline in quality will occur or one ...

02/09/06 - 20060030322 - Method and system for handoff between base stations supporting multi-profile operation in bwa system
Disclosed is a method for performing handoff by a Mobile Station (MS) in a Broadband Wireless Access (BWA) communication system including a serving Base Station (BS) and at least one neighbor BS adjacent to the serving BS, the serving BS currently providing a service to the MS. The method including ...

02/02/06 - 20060025137 - Mobile radio communications device and method of transferring between networks therefor
The present invention provides for a method of transferring operation of a mobile radio communication device from a first network to a second network, while connected to the said first network, and including the steps of identifying cells of the said second network, comparing signal power level of the identified ...

02/02/06 - 20060025136 - System, apparatus, method, and computer program for radio communication
A radio communication system includes a plurality of radio communication stations. Each radio communication station performs a random-access operation in a communication environment having a plurality of available communication channels, and assigns a communication channel on a per packet basis to transmit a packet. ...

02/02/06 - 20060025135 - Mobile handoff through multi-network simulcasting
A method and apparatus supporting handoff using simulcasting of multimedia information via a broadband access gateway are disclosed. A broadband access gateway supporting both a personal area network and a broadband network may receive multimedia information simultaneously transmitted to an associated access device by a wide area network. The broadband ...

01/26/06 - 20060019664 - Method and apparatus for inter-cell handover in wireless networks using multiple protocols
A communication system formed by a private wireless network that can be used with public wireless networks using a public wireless protocol, such as GSM, and typically includes public networks, such as PSTN, ISDN and the Internet, using a wired-packet protocol, such as IP. The private network also typically includes ...

01/26/06 - 20060019663 - Robust and fast handover in a wireless local area network
A method for communicating a list of handover candidates in a wireless local area network from a station to a serving access point (AP) begins by determining a list of handover candidate APs at the station. The candidate list is sorted at the station and is sent to the serving ...

01/19/06 - 20060014539 - Method, medium, and apparatus controlling handover between different networks
A method, medium, and apparatus controlling a handover between different network types, including the operations of transmitting a message requesting a transmission bandwidth change, so as to have a transmission bandwidth supported by a new network after movement of the mobile terminal, from the mobile terminal to the server after ...

01/19/06 - 20060014538 - Frequency quality criteria for inter-frequency handover in a td-cdma communication system
A method for determining whether to perform IFHO (inter-frequency handover) of a UF apparatus from one cell to another and from one carrier frequency to another in a TD-CDMA telecommunications network (including e.g. a TD-SCDMA network)—based separately on coverage and capacity, using one decision metric for coverage (e.g. based on ...

01/12/06 - 20060009223 - Observing a moving subscriber on the basis of handover commands
A location of a subscriber can be observed by means of a mobile network in a completely anonymous way, without a subscriber identifier or a temporary subscriber identifier. At first, a method extracts from a first time slot of a radio channel a message which includes information about a second ...

01/12/06 - 20060009222 - Handover-based method for anonymous observation of a moving subscriber
A location of a subscriber can be observed by means of a mobile network in a completely anonymous way, without a subscriber identifier or a temporary subscriber identifier. At first, a method extracts from a first time slot of a radio channel a message which includes information about a second ...

01/05/06 - 20060003769 - Mobile terminal device for handover in wlan and method thereof
A handover method of a mobile terminal device in a wireless local area network (WLAN) includes a mobile terminal device and at least two wireless access points (APs) which communicate with the mobile terminal device using particular radio resources. The mobile terminal device communicates with a wireless AP via a ...

01/05/06 - 20060003768 - Method for detecting and reducing ping-pong handover effect of cellular network
A method for detecting and reducing ping-pong handover effect of a cellular network is disclosed. The method provides a systematic way to determine which cell pairs of the network have high probability of suffering from the ping-pong handover effect. The method comprises collecting network traffic statistic data of multiple items, ...

01/05/06 - 20060003767 - System and method for supporting soft handover in a broadband wireless access communication system
A method for supporting handover in a BWA communication system is provided. The system includes an MS, a serving BS, and a plurality of neighbor BSs. The coverage area of each of the BSs is divided into sectors using different subcarrier bands. The MS collects information broadcast from the serving ...

12/29/05 - 20050288021 - Method and system wherein handover information is broadcast in wireless local area networks
A method and system wherein handover information is broadcast in a wireless local area network. Handover information is broadcast in a beacon frame thereby allowing WTRUs operating in a wireless area network to handover to available alternative systems as desired. WTRUs may read the beacon frame and obtain appropriate information ...

12/29/05 - 20050288020 - Apparatus and method for supporting handover in a broadband wireless access communication system
Disclosed is a method for supporting a handover in a broadband wireless access communication system which includes a mobile subscriber station, a serving base station currently providing service to the mobile subscriber station, and a plurality of adjacent base stations different from the serving base station, in which each of ...

12/29/05 - 20050288019 - Handover method and handover apparatus
A handover apparatus and a handover method performing a fast handover in an environment of various communication networks having different communication standards, the handover method, which is performed in a mobile node (MN) that moves between different types of networks, including determining whether a signal received from a node that ...

12/29/05 - 20050288018 - Multi-slope handoff algorithm for controlling dynamic communication quality in wireless communications
A multi-slope handoff algorithm for controlling dynamic communication quality in wireless communications is proposed to let a mobile node adjust the handoff slope according to different communication connection situations for setting the optimum add/drop connection trigger thresholds. The algorithm comprises the following steps. First, a mobile node receives pilot strengths ...

12/22/05 - 20050282549 - Method of transmitting scheduling command for uplink enhanced dedicated channel in handover
A method of transmitting a scheduling command during handover is disclosed. More specifically, the scheduling command is transmitted to a user equipment from a base station having a plurality of cells. In operation, the base station composes the scheduling command and transmits the scheduling command to the user equipment via ...

12/22/05 - 20050282548 - System and method for optimizing handover in mobile communication system
Disclosed are a system and a method for optimizing a handover process in a mobile broadband wireless access system. The method performs handover in a mobile communication system including a mobile subscriber station, a serving base station currently providing service to the mobile subscriber station, and at least one neighbor ...

12/22/05 - 20050282547 - System for handover in bwa communication system and method thereof
Disclosed is a handover system in a BWA communication system. In the system, a serving BS broadcasts neighbor BS information including BS identifiers of a plurality of neighbor BSs and reference signal indices indicating reference signals used by the neighbor BSs, a MS receives the neighbor BS information and requests ...

12/22/05 - 20050282546 - Method and system for providing fast handoff in a wlan-like communication system using active neighboring sets
Methods and systems for providing fast handoff in WLAN-like communications system construct a caching candidate set based upon a weighted handoff tendency coefficient. The weighted handoff tendency coefficient is based upon the handoff matrix and the weighting factor. The handoff matrix is an adaptive two-dimensional array that provides a list ...

12/15/05 - 20050277417 - System and method for fast network re-entry in a broadband wireless access communication system
A system and method for fast network re-entry in a broadband wireless access communication system. A mobile station transmits a first message requiring fast network re-entry to a base station and performs the fast network re-entry together with the base station when receiving a second message approving the fast network ...

12/15/05 - 20050277416 - Measurements in communications systems
A method of performing compressed mode measurements for selecting communication means in a communication system. The communication system comprises a network element and a plurality of communication means for serving a mobile station. The method comprises providing information associated with the plurality of communication means to the network element, said ...

12/15/05 - 20050277415 - Control of interfrequency handovers
A method and a mobile station for controlling interfrequency handovers of the mobile station is provided. The target value for a quality factor of the received downlink signal is used in determining a need for an interfrequency handover. The target value of the handover control method may be equal to ...

12/08/05 - 20050272426 - Handover method in mobile communication system
A handover method in a mobile communication system, wherein, while maintaining communication with a certain base station before handover, a mobile terminal measures signals of adjacent cells and confirms the candidate handover target base stations; the mobile terminal sends measurement report to network; inserting the procedure of pre-synchronization between the ...

12/08/05 - 20050272425 - Maintaining and searching sets of cells in a wireless communication system
For cell measurement, a wireless device categorizes cells whose identities are known to the device into multiple sets. The wireless device may obtain these cells from the system via signaling and/or detect these cells via searches. Different sets of cells may be associated with different levels of importance (e.g., for ...

12/01/05 - 20050266851 - Wireless communication terminal, hand-off execution method, and hand-off execution program
A wireless communication terminal wirelessly communicates with a base station with employing a first communication method and a second communication method, in which an idle state in the second communication method is intermittently carried out under a communication state in the first communication method. The wireless communication terminal has a ...

12/01/05 - 20050266850 - Radio communication system and communication method thereof
The present invention provides a radio communication system that enables handovers between radio base stations to be conducted at a short time using a mobile communication terminal having one radio communication part. A pseudo radio communication control part in a mobile communication terminal links with a packet transfer part and ...

12/01/05 - 20050266849 - Method for establishing a time division and duplex self-organizing mobile communication system
The present invention relates to a method for constructing a self-organizing mobile communication system which is mobile, self-organizing and can make common commercial terminals communicates with outside, comprising: searching for the pilot signals of adjacent area base stations in a manner similar to user terminals by a base station without ...

12/01/05 - 20050266848 - Performing handover by deferring ip address establishment
In a broadband wireless access system, when handover is performed while receiving data, a method of deferring IP address establishment procedures is provided to allow such data to be delivered between the base stations. When the terminal receiving downlink data moves from a first base station region to a second ...

12/01/05 - 20050266847 - Connected-state radio session transfer in wireless communication systems
Embodiments described herein relate to connected-state radio session transfer in wireless communications. A source access network controller may lock a source radio session associated with an access terminal (e.g., in response to detecting a handoff condition associated with the access terminal), where the source access network controller may be in ...

12/01/05 - 20050266846 - Method and apparatus for providing enhanced messages on common control channel in wireless communication system
A method and apparatus for providing new configurations for transmitting control information between a mobile terminal and a network using a common control channel (CCCH) logical channel/transport channel. The new configurations enable messages to be sent that are larger than currently allowed and the availability of the new configurations is ...

12/01/05 - 20050266845 - Apparatus and method for multimode terminals
An apparatus and method of operation of a multimode terminal on different network technologies. A wireless communication device can operate on a serving cell of a first network type. A neighbor list is received. The neighbor list is modified based on a preferred list to generate a modified neighbor list. ...

11/24/05 - 20050260992 - Mobile communication system and radio network controller
A mobile communication system for transmitting a plurality of same information to a plurality of cells. The mobile communication system includes a transmission timing determining unit for determining a transmission timing of the same information to each of the cells randomly or in such a manner that transmission timings differ ...

11/24/05 - 20050260991 - Mobile communication system, inter-frequency ho method, mobile station, base station, base station control device, and program
During inter-frequency HO, an HO destination BTS (2) transmits, in gaps in compressed mode, to an MS (3) in the HO destination frequency, data that are identical to data that are transmitted by the HO origin BTS (1) to the MS (3) in the HO origin frequency. In addition, the ...

11/24/05 - 20050260990 - Method for decide cdma frequency hard handoffs
This invention discloses a method for controlling inter-frequency hard handoffs by using user equipment(UE) event-triggered reporting mode in a WCDMA system, being applicable to geographical cells covered by multiple frequency points. Its main technical feature is that the radio network controller (RNC), after receiving reported results from the UE, performs ...

11/17/05 - 20050255847 - Fast handover method optimized for ieee 802.11 networks
A fast handover method optimized for IEEE 802.11 networks. In a wireless local area system including a mobile terminal and at least two wireless access points (APs) that communicate with the mobile terminal over a unique radio channel, the fast handover method includes receiving a beacon frame signal from the ...

11/10/05 - 20050250498 - System and method for performing a fast handover in a broadband wireless access communication system
A broadband wireless access (BWA) communication system includes a mobile subscriber station (MSS), a serving base station (BS) with which the MSS performs communication, and a plurality of neighbor BSs. The serving BS transmits, to the MSS, a handover request message including information on at least one recommended BS to ...

11/10/05 - 20050250497 - Acknowledgement method for ack/nack signaling to facilitate ue uplink data transfer
To address the need to convey ACK/NACK information in a manner that conserves system and signaling resources, embodiments of the present invention employ a Node-B transmitting on two types of ACK/NACK broadcast channels (501, 502), one type for received uplink data that was scheduled by the Node B and the ...

11/10/05 - 20050250496 - Communications methods and apparatus for use therein
A method and apparatus of operation of a mobile communication system comprising at least one mobile station is disclosed. The method and apparatus comprise storing in a database information relating to coverage areas of a plurality of wireless networks and monitoring the mobile station for its location while the mobile ...

11/03/05 - 20050245262 - Radio controller, mobile communications system, and communications control method
A radio controller of a mobile communications system performing broadcasting or multicasting that transmits the same information to multiple cells is disclosed. The radio controller includes a control information comparison part configured to compare the control information of a first one of the cells and the control information of a ...

11/03/05 - 20050245261 - Method of handing off a packet switched to a circuit switched call
By obtaining the address of a circuit switching controller in the a network with which a mobile station is registered, a packet call controller instructs the circuit switching controller to send notification of when a handoff request is received for a mobile station by the circuit switching controller. The handoff ...

10/27/05 - 20050239465 - Mobile broadband wireless access system for transferring service information during handover
The present invention is related to transmitting quality of service (QoS) information of a target base station for admitted service flows during a handover operation. The invention comprises providing a service to a mobile station from a serving base station and receiving at the serving base station a handover request ...

10/27/05 - 20050239464 - Measurement opportunities for a mobile unit operating with a switched beam antenna in a cdma system
Measurement opportunities are provided to a wireless transmit/receive unit (WTRU) operating with a switched beam antenna in a CDMA wireless communication system. The switched beam antenna is a smart antenna generating a plurality of directional beams and an omni-directional beam. The bursty nature of packet data transmission generates periods of ...

10/20/05 - 20050233747 - Roaming service area indication device for mobile telecommunication terminal
A roaming service area indication device in a mobile telecommunication terminal is disclosed. In one embodiment the roaming service area indication device includes a processor, configured to output a roaming indication control signal based on a location of the mobile telecommunication terminal. The roaming indication control signal is preferably configured ...

10/20/05 - 20050233746 - Methods and apparatus for selecting between multiple carriers based on signal energy measurements
Carrier frequency selection and handoff initiation methods in wireless communications systems employing multiple carrier frequencies are described. Although the receiver is tuned to a single band, based on the relative energy of one or more beacon signal components corresponding to the currently used carrier and one or more beacon signal ...

10/13/05 - 20050227695 - Flow control method in a telecommunications system
The invention relates to flow control in data transmission in telecommunications systems, particularly in wireless telecommunications systems. In the present invention flow control information is tunnelled over a connection leg which does not support flow control on a lower transmission protocol layer underlying a user level. The nodes at the ...

10/13/05 - 20050227694 - Handover method and apparatus
A handover method in which changes to be made to a communication quality conversion function in response to an addition of a new wireless access scheme can be reduced is provided. The handover method for realizing handover between differing wireless access schemes for a mobile terminal having a communication function ...

10/13/05 - 20050227693 - Sector switching detection method
A sector switch detection method incorporates two independent, concurrent switch detection processes within a sector switch detection block. A frame-based switch detection process operates over a given single period, while a sliding window-based detection system operates over a selected multiple of periods. ...

10/06/05 - 20050221826 - Method for providing guide broadcasting for video phone by means of fallback between speech mode and data mode
Disclosed is a method for providing a guide broadcasting in the same way as that for a voice call without changing hardware in a mobile communication system supporting a video phone. In the method, a Mobile Station transmits a ‘SETUP’ message for requesting multimedia communication and fallback speech communication to ...

10/06/05 - 20050221825 - Mobile telecommunication system capable of executing handover and relocation involving plural radio network controllers (rnc) without using lur interface
Disclosed is the mobile telecommunications system, which allows performing handover involving plural RNCs without using the lur interface in a mobile telecommunications system having a RAN that is converted to be compliant with the IP. When the measured value of the received power supplied from Node B 203 assigned to ...

09/29/05 - 20050215255 - Mobile communication system, base station and transmission power control method for use therein
The one of the first and second base stations comprises a handover state detector 22 for detecting information notified by a radio network controller regarding whether or not the mobile terminal is in the handover state, and also comprises a transmission power calculator 20 for calculating a value of downlink ...

09/29/05 - 20050215254 - Method of performing handdover by using different handover parameters for different traffic and user classes in a communication network
The present invention relates to a method for performing handover in a communication network, wherein communication with a subscriber terminal (UE) having subscribed to said network is performed by the intermediate of at least one net entity (Node B) handling the communication of said subscriber terminal, upon a change of ...

09/22/05 - 20050208945 - System and method for performing network re-entry upon handover of mobile subscriber station in a broadband wireless access communication system
A system for performing network re-entry upon handover of a mobile subscriber station (MSS) to a target base station (BS). Upon detecting handover of the MSS, the target BS detects network re-entry information necessary for network re-entry of the MSS from the serving BS, and transmits, to the MSS, the ...

09/22/05 - 20050208944 - Wireless communication apparatus, wireless communication network and software upgrading method
Software in a base station is upgraded during a communication service. A base station control portion selects one or multiple signals in accordance with the state of radio waves from signals received through multiple definable communication paths. A wireless communication apparatus communicates with a wireless terminal and a wired communication ...

09/22/05 - 20050208943 - Apparatus and method for handover between two networks during an ongoing communication
A method and apparatus for handover of a communication device between a first network and a second network while the communication device is in an ongoing communication. The communication device can register with the second network. The communication device can also enter an ongoing communication via the first network. The ...

09/22/05 - 20050208942 - Advanced handover in phased-shifted and time-sliced networks
The present invention provides methods and apparatus for a wireless terminal to receive channel bursts in a wireless system while the wireless terminal is performing a handover from one base station to another base station. The wireless terminal determines that a handover may be necessary if a handover criterion is ...

09/15/05 - 20050202823 - Method and system for switching a radio access technology between wireless communication systems with a multi-mode wireless transmit/receive unit
A method and system for switching a radio access technology (RAT) between wireless communication systems connected to each other while implementing different RATs with a multi-mode WTRU are disclosed. A plurality of wireless communication systems are deployed with overlapping coverage areas wherein each system implements different RATs and are connected ...

09/15/05 - 20050202822 - Method and system for transmitting data using a safety channel in a broadband wireless access system
A method for allocating a safety channel to a handover subscriber station (SS) for data communication in an Orthogonal Frequency Division Multiple Access (OFDMA) communication system. In the method, a base station (BS) determines a bin offset indicating a safety channel to be allocated to the handover SS and the ...

09/15/05 - 20050202821 - Blind handover technique
In a mobile telecommunications system, when it is determined that a mobile terminal should be handed over from a first cell (primary cell) to a second cell (target cell), the target cell is chosen based on measurements of link quality in the primary network at the time when it is ...

09/08/05 - 20050197123 - Method and apparatus for transmitting and receiving control message in wireless access communication system
A registration response (REG_RSP) message is generated which includes a type field, a length field, and an integrated CID (Connector Identifier) field. The integrated CID field includes an integrated CID inserted thereinto. The integrated CID is configured by using a new CID assigned to the subscriber terminal and an old ...

09/08/05 - 20050197122 - Method and apparatus for repeatable handback attempt after inter-msc handoff
A method and apparatus providing a handback process in a wireless telecommunication system after an inter-MSC handoff from a first MSC to a second MSC during an active call to an MS are provided. In one embodiment, the method includes: a) initiating an inter-MSC handback attempt from the second MSC ...

09/01/05 - 20050192009 - Method and apparatus for handoff between a wireless local area network (wlan) and a universal mobile telecommunication system (umts)
Apparatus and method for providing an automatic handoff process of a dual-mods user equipment (UE) from either a wireless local area network (WLAN) to a universal mobile telecommunications system (UMTS) or from a UMTS to a WLAN. Handoffs may be initiated by the UE, based upon user preference, signal quality, ...

08/18/05 - 20050181795 - Cellular network handoff decision mechanism
Disclosed is a cellular network handoff decision mechanism which comprising the steps of: determining a sampling interval using a carrier wavelength; determining a local averaging interval that is larger than the sampling interval; determining a handoff decision interval that is larger than the local averaging interval; selecting at least two ...

08/18/05 - 20050181794 - Apparatus and method for improved handoffs in an ev-dv wireless network
A base station for use in a 1xEV-DV/DO wireless network that communicates with mobile stations in its coverage area. The base station comprises a handoff controller for receiving a Handoff Request message from a first mobile station attempting to hand off to the base station. In response to receipt of ...

08/11/05 - 20050176432 - Mobile node
A mobile node is arranged to perform a high-quality hand-over operation for eliminating an interruption time in communication and keeping the continuance of communication excellent. The mobile node has a function of interfacing with networks and includes a network quality monitor, a hand-over controller, and a network controller. The network ...

08/11/05 - 20050176431 - Method for handling key sets during handover
A method of handling key sets includes determining a first key set and ciphering a communication channel between a mobile station communicating in a circuit-switched communication mode and a network using the first key set. The method further includes determining a second key set and responsive to triggering of a ...

08/11/05 - 20050176430 - Apparatus and method for transmitting control information in mobile communication system
An apparatus and method for transmitting control information in a mobile communication system transmits uplink or downlink control information required for an E-DCH transmission between MAC layers of a transmitting side and a receiving side. The MAC layer of the transmitting side divides the MAC PDU into a MAC control ...

08/11/05 - 20050176429 - Mobility management method using an improved neighbor graph
Disclosed is a method for managing mobility of mobile nodes between heterogeneous networks in an IP-based mobile communication system including a plurality of access nodes for providing an IP service to mobile nodes located in their service areas and a neighbor graph server for supporting connection to the access nodes ...

08/04/05 - 20050170834 - Systems and methods for handover between space based and terrestrial radioterminal communications
A satellite communications system includes a satellite that is configured to wirelessly communicate with radioterminals in a satellite coverage area over a satellite frequency band, and an ancillary terrestrial component that is configured to wirelessly communicate with radioterminals in the satellite coverage area over at least some of the satellite ...

07/28/05 - 20050164705 - Apparatus and method using release order messages to change the slot cycle index of a selected mobile station in a wireless network
For use in a wireless network, a mobile station that can selectively use the reduced slot cycle mode under the control of a first wireless network base station. The mobile station comprises: 1) a message controller for communicating in a paging channel with the first base station; and 2) a ...

07/21/05 - 20050159159 - Rapid decoding of control channel to decrease handoff time
A portion of a traffic channel message is detected and decoded to determine if a rapid handover procedure may be used. A first portion of the traffic channel includes information data and CRC data. The CRC data is decoded, and if the CRC determines the message is valid, the mobile ...

07/21/05 - 20050159158 - Method and system for providing mobile handoff between hybrid networks
A method and system is disclosed for providing a handoff solution to a mobile moving between two hybrid networks by using Core network technology protocols, and having both hybrid networks composed of CDMA RAN and GSM CN. The method uses a Hybrid Mobile Switch Center (HMSC) and a predetermined protocol ...

07/14/05 - 20050153696 - Radio resource control-service data unit reception
A method for receiving a segmented communication begins by periodically transmitting the segmented communication. The segmented communication is received and each segment of the segmented communication is examined to determine if the segment is valid. If the segment is valid, then the segment is stored. If the segment is invalid, ...

07/14/05 - 20050153695 - Apparatus and method for identifying a neighboring cell boundary in a mobile communication system
A mobile terminal identifies a cell boundary of a mobile communication network supporting an asynchronous scheme for handover between different communication systems. For this, a boundary indication base station newly defines boundary indication codewords distinguished from existing codewords used for acquisition of frame synchronization, and transmits one of the boundary ...

07/07/05 - 20050148334 - Vehicle enabled networks
A method and apparatus for improving a network is described. The network uses the energy from a vehicle battery or vehicle generator to power an intermediate transmitter device that receives the signal from a portable wireless device and retransmits the information in the signal to a base station. The intermediate ...

06/30/05 - 20050143073 - Method for performing handoff in wireless network
A method for minimizing handoff latencies when a handoff is performed in a wireless network. An access point (AP) or base station associated to a current wireless station (STA) allows information required for a reassociation to the STA to be propagated to handoff-capable neighboring APs or base stations. When the ...

06/30/05 - 20050143072 - Seamless handover method in an fh-ofdm based mobile communication system
A handoff method in a mobile communication system using frequency hopping-orthogonal frequency division multiplexing (FH-OFDM). A mobile host predicts a handoff according to strength of transmission power of a currently serving base station, reserves a physical channel required for the handoff associated with at least one candidate base station, selects ...

06/30/05 - 20050143071 - Arranging handover
The invention relates to applying a handover algorithm in a mobile terminal. In the method, the state of a user interface component of the terminal is checked, and the handover algorithm is applied on the basis of the current state of the user interface component. The handover algorithm is applied ...

06/23/05 - 20050136929 - Method and apparatus for supporting a soft handoff by establishing a cell set used to facilitate antenna beam mode transitions in a mobile station
A method and apparatus for establishing a set of cells used to support a soft handoff. The apparatus is used in a wireless communication system including a plurality of cells and at least one wireless transmit/receive unit (WTRU) having at least one beam antenna which is configured to transition between ...

06/23/05 - 20050136928 - Handover in a wireless local area network (wlan)
In triggering a handoff by a wireless transmit/receive unit (WTRU) from a current basic service set (BSS) in a wireless local area network (WLAN), the following are performed. A highest class of traffic service and quality of service (QoS) is determined for the highest class from a basic service set ...

06/23/05 - 20050136927 - Method and apparatus for providing seamless call handoff between networks that use dissimilar transmission methods
Call handoff from an 802.1x network to a cellular network, and vice versa. A wireless device that has both cellular and 802.1x capability detects the strength of a cellular signal and of an 802.1x signal. If a call is taking place over the 802.1x network and the strength of the ...

06/16/05 - 20050130660 - Inter-technology handoff method in an ip-based wireless communication system
A handoff method in a communication system where BSs providing different radio access interfaces to an MS are connected to an IP-based network through routers. A handoff from a first BS to a second BS is decided for an MS that receives IP service data from the first BS and ...

06/16/05 - 20050130659 - Method for optimizing handover between communication networks
A method for ensuring continuity of a communication session when a user equipment hands over from a first communication network to a second cellular communication network is provided. The method, in one embodiment, includes the steps of performing an authentication procedure for a packet data session with the second network ...

06/16/05 - 20050130658 - Handoff apparatus, systems, and methods
An apparatus and a system, as well as a method and article, may operate to receive a request associated with a specification at a first access point, and to locate a second access point capable of supporting the specification. A handoff from the first access point to the second access ...

06/16/05 - 20050130657 - Mobile to 802.11 voice multi-network roaming utilizing sip signaling with sip proxy or redirect server
A method of roaming between a mobile network and a wireless network can include receiving, over the wireless network, an invite from a user agent disposed within a mobile communications device. The mobile communications device can be engaged in a call over a voice channel in the mobile network. The ...

06/16/05 - 20050130656 - Method and apparatus for performing handover in a bluetooth radiocommunication system
Apparatus and method for handing over, at a time instance, a first low power radio frequency transceiver participating in a first network of low power radio frequency transceivers using first network parameter(s) and controlled by a first master transceiver from the first network to a second network of low power ...

06/09/05 - 20050124344 - Base station based methods and apparatus for supporting break before make handoffs in a multi-carrier system
A mobile communications device initiates a handoff from its current base station (BS) sector network attachment point to a new BS sector. The mobile sends a handoff request over its current wireless link to the current BS sector, which forwards the request to the new BS sector, e.g., via a ...

06/09/05 - 20050124343 - Radio communication apparatus and common control channel reception method
A radio communication apparatus includes: a transmitting section for transmitting a request message to a first cell and a second cell; a first combiner for demodulating a first common control channel transmitted from the first cell; a second combiner for demodulating a second common control channel transmitted from the second ...

06/02/05 - 20050119001 - Wireless communication system, server and mobile station therefor
This invention provides a wireless communication system wherein a network to which a mobile station should be handed over can be selected, using parametric data collected from network components other than the mobile station. Time taken for a handover between different types of network systems is reduced. The wireless communication ...

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