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Time Division

Time Division patent applications listed include Date, Patent Application Number, Patent Title, Patent Abstract summary and are linked to the corresponding patent application page.

Related Categories:

Multiplex Communications


Duplex > Communication Over Free Space > Time Division



Methods of ul tdm for inter-enodeb carrier aggregation
12/18/14 - 20140369242 - One or more embodiments provide a method implemented in a user equipment (UE) used in a wireless communications system. The method includes transmitting an indication to a base station that the UE is capable of transmitting on a single uplink carrier frequency and downlink carrier aggregation. The method also includes...

Frequency synchronization method for nodes in a downlink coordinated multiple point transmission scenario
12/18/14 - 20140369243 - Techniques are disclosed for synchronizing frequency among a cluster of coordinated transmission points cooperating in a coherent joint transmission. In some embodiments, one transmission point is set (510) as a reference transmission point for a group of coordinated transmission points. Each of one or more other transmission points in the...

Periodic channel state information reporting for time division duplex (tdd) carrier aggregation systems
12/18/14 - 20140369244 - Technology for reporting periodic channel state information (CSI) is disclosed. One method can include determining a reporting period (Npd) of a user equipment (UE) for a serving cell. A Time-Division Duplex (TDD) uplink-downlink (UL-DL) configuration of a primary cell of the UE can be identified. A periodic CSI report for...

Method and apparatus for transmission by time division duplexing (tdd) devices using multiple antennas
12/11/14 - 20140362744 - TDD devices may transmit using multiple antennas. First and second antennas having first and second receive conditions may receive a communication. In an aspect, first and second transmit conditions for the first and second antennas may be determined based on the first and second receive conditions. In an aspect, the...

Central processing unit and methods for supporting coordinated multipoint transmission in an lte network
12/11/14 - 20140362745 - Embodiments of a central processing unit and methods for supporting coordinated multi-point (CoMP) transmissions in a 3GPP LTE network with non-ideal backhaul links are generally described herein. In some embodiments, the CPU may be arranged for scheduling and assigning resources for subordinate enhanced node Bs (eNBs) over the backhaul links...

Method and device for sending hybrid automatic repeat request acknowledge information
12/11/14 - 20140362746 - Disclosed are a method and device for sending hybrid automatic repeat request acknowledge information. The method includes: in a TDD system, configuring a terminal to employ a PUCCH format 1b with channel selection method to send HARQ-ACK information; bundling the HARQ-ACK information of downlink subframes of serving cells in a...

Method and apparatus for transmitting control information in wireless communication system
12/11/14 - 20140362747 - The present invention relates to a wireless communication system. In particular, the present invention relates to a method and apparatus for transmitting control information by means of a terminal in a CA-based wireless communication system, including the steps of: forming first and second cells that include different subframe configurations, wherein...

Multicast service using unicast subframe
12/04/14 - 20140355493 - A system and method for multicast servicing in a unicast subframe is disclosed. The method using an evolved Node B (eNodeB) comprises the operation of setting up a multicast service on each of a plurality of user equipments (UEs) in a multicast group using a multicast identifier. The operation of...

Overhearing
12/04/14 - 20140355494 - A method for use by a base station of a communication network is provided, the base station belonging to a first group of base stations and the communication network comprising the first group of base stations and second and third groups of base stations. The base station provides access to...

Method and radio node for controlling change of communication mode
12/04/14 - 20140355495 - Method and radio node (500) for controlling a change of communication mode between transmit mode and receive mode according to a Time Division Duplex, TDD, scheme. The radio node has at least two parallel branches (504, 06) for transmission and reception of radio signals, wherein the branches currently operate in...

Apparatus and method for communicating signaling information
12/04/14 - 20140355496 - A wireless subscriber communication unit is provided for operation in a cellular communication system having a plurality of shared uplink and downlink transmission resources, each divided into sets of mutually exclusive resources. The shared uplink transmission resources are defined in terms of codes and timeslots. The communication unit comprises a...

Power control of physical uplink control channel for long term evolution - advanced time division duplex
11/27/14 - 20140348036 - Methods and apparatus are directed towards controlling power of physical uplink control channel (PUCCH) format 1b for advanced time division duplex. If HARQ-ACK bundling is not applied, then nHARQ associated with the PUCCH is determined based on a number of received transport blocks and SPS release physical downlink control channels...

Method for updating system information, access network equipment and user equipment
11/27/14 - 20140348037 - Embodiments of the present invention provide a method for updating system information, an access network equipment, and a user equipment. Embodiments of the present invention can avoid the problem that, in the prior art, the user equipment is unable to correctly receive updated system information in that a subframe, configured...

Radio communication system, radio base station apparatus, user terminal and radio communication method
11/27/14 - 20140348038 - The present invention is designed to prevent the decrease of capacity even when the ratio of uplink subframes and downlink subframes is changed in each component carrier in TDD carrier aggregation. With the radio communication method according to the present invention, a radio base station apparatus generates a downlink control...

Method and device for transreceiving cell-selective signals in multicomponent carrier system
11/27/14 - 20140348039 - The present invention relates to a method and device for transreceiving cell-selective signals in a multi-component carrier system. The present invention provides a method for transreceiving cell-selective signals, and the method comprises the steps of: configuring, in a terminal, a sub serving cell belonging to a first band; setting one...

Semi-full-duplex single-carrier transmission technique
11/27/14 - 20140348040 - There are provided measures for enabling a semi-full-duplex single-carrier transmission technique. Such measures may exemplarily comprise classifying each one of served terminals into one of two transmission groups, assigning an uplink-downlink configuration of a frame structure for time division duplex communication for each one of the two transmission groups such...

Communications in a wireless network
11/27/14 - 20140348041 - A network device that sends resource allocation information associated with a physical uplink control channel is disclosed. The physical uplink control channel and a physical uplink shared channel may have different resources. The network device may receive, at times that the physical uplink shared channel is not received, a signal...

Dynamic tdd operation method and apparatus for use in wireless communication system
11/20/14 - 20140341091 - A method and apparatus are provided for signal transmission and reception in a Time Division Duplex (TDD) system. The method includes receiving, from a base station, first configuration information including an uplink reference Uplink-Downlink (UL-DL) configuration; receiving, from the base station, second configuration information including a downlink reference UL-DL configuration;...

Method and related communication device for handling communication between time division duplex devices
11/20/14 - 20140341092 - A method of handling communication between time division duplex (TDD) devices for a network in a wireless communication system includes selecting at least two subframes to be used for a device to device (D2D) communication between a first user equipment (UE) and a second UE in the wireless communication system;...

Method for setting downlink transmission power in wireless access system, and apparatus therefor
11/20/14 - 20140341093 - Disclosed are a method for setting downlink transmission power in a wireless access system supporting an environment in which an amount of uplink resources and an amount of downlink resources dynamically change, and an apparatus therefore. Specifically, the method comprises the steps of: classifying resources to be used for downlink...

Method for transmitting/receiving signal and device therefor
11/20/14 - 20140341094 - The present invention relates to a wireless communication system. More particularly, the present invention relates to a method for transmitting uplink control information and a device therefor, the method comprising the steps of: forming a plurality of serving cells each having different UL-DL configurations; receiving one or more signals requiring...

Method for transmitting/receiving signal and device therefor
11/20/14 - 20140341095 - The present invention relates to a wireless communication system. More particularly, the present invention relates to a method for transmitting uplink control information and a device therefor, the method comprising the steps of: forming a plurality of serving cells each having different UL-DL configurations; receiving one or more signals requiring...

Efficient control information transmission method and apparatus for supporting multiple antenna transmission technique
11/20/14 - 20140341096 - The present invention relates to a wireless communication system and provides an efficient control information transmission method and apparatus for supporting a multiple antenna transmission technique. A method is provided for transmitting downlink hybrid automatic repeat request (HARQ) information related to an uplink multiple codeword transmission and includes receiving the...

Methods and apparatus for cell measurement
11/13/14 - 20140334350 - Methods and apparatus for cell measurement. An example method in a network device includes receiving configuration information including at least one of multimedia broadcast single frequency network (MBSFN) configuration or time division duplex (TDD) configuration for an evolved universal terrestrial radio access network (E-UTRAN) and transmitting the configuration information to...

Systems and methods for signaling reference configurations
11/13/14 - 20140334351 - A user equipment (UE) for receiving time-division duplexing (TDD) uplink/downlink (UL/DL) configurations is described. The UE includes a processor and instructions stored in memory that is in electronic communication with the processor. The UE receives a primary TDD UL/DL configuration for a serving cell and reconfiguration information. The UE determines...

Cell cluster coordination
11/13/14 - 20140334352 - The present application describes embodiments of a method for coordinating cells in a cluster. One embodiment of the method includes sending, from a first base station, information identifying a first time division duplex (TDD) subframe configuration associated with the first base station. This embodiment of the method also includes receiving,...

Dynamic time division duplexing method and apparatuses using the same
11/13/14 - 20140334353 - The present disclosure proposes a dynamic time division duplexing (TDD) method applicable to a user equipment and a control node, and apparatuses using the same method. Accordingly, the present disclosure proposes a base station (BS) which transmits to a least one user equipment (UE) a system information block (SIB) having...

System and method for tdd configuration for d2d open discovery
11/13/14 - 20140334354 - Embodiments are provided to support device-to-device (D2D) communications in a time-division duplexing (TDD) communications system, and ensure that D2D discovery signals are transmitted by user devices on an uplink subframe when there is a TDD frame configuration change. In an embodiment, a user device receives form the network a TDD...

Dynamic reconfiguration of uplink transmission in a tdd wireless communication system
11/13/14 - 20140334355 - Embodiments of the invention use signaling mechanisms that enable dynamic reconfiguration of the UL/DL resource partitioning by user equipment (UE) in a TDD wireless communication system, such as the 3GPP TDD Long Term Evolution (TD-LTE) system. The dynamic reconfiguration of the UL/DL resource partitioning disclosed herein may also be applied...

Resource management method and apparatus for controlling interference between cells
11/13/14 - 20140334356 - An exemplary embodiment of the present invention provides a resource management method performed by a coordinator for controlling interference between cells. The coordinator receives a channel state of a second base station neighboring a first base station from the first base station. The coordinator partitions a resource based on the...

Method for transmitting/receiving signal and device therefor
11/13/14 - 20140334357 - The present invention relates to a wireless communication system. More particularly, the present invention relates to a method and a device therefor, the method comprising: setting a first cell having a first TDD UL-DL configuration and a second cell having a second TDD UL-DL configuration; receiving data through a DL...

Method for transmitting/receiving signal and device therefor
11/13/14 - 20140334358 - The present invention relates to a wireless communication system. More particularly, the present invention relates to a method and a device therefor, the method comprising: setting a first cell having a first TDD UL-DL configuration and a second cell having a second TDD UL-DL configuration; receiving data through a DL...

Systems and methods for carrier aggregation
11/13/14 - 20140334359 - A User Equipment (UE) for performing carrier aggregation is described. The UE includes a processor and instructions stored in memory that is in electronic communication with the processor. The UE determines an uplink control information (UCI) transmission cell in a wireless communication network with at least one frequency-division duplexing (FDD)...

Baseband data transmission and reception in an lte wireless base station employing periodically scanning rf beam forming techniques
11/13/14 - 20140334360 - The present disclosure is related to a large-scale broadband wireless network capable of providing a very high wireless data capacity, wherein one aspect of the system utilizes a periodic beam forming system. When a wireless base station cell operates a periodic beam forming system, it is necessary to locate each...

Coexistence detection of wifi networks using idle intervals in a tdd system
11/06/14 - 20140328225 - A process includes determining an unallocated communication frame of a first radio access technology (RAT) using a dedicated physical channel (DPCH) with a time division multiplexing scheme. Measurements are then performed to identify for a second RAT during a time allocated to the unallocated communication frame....

Data transmission method and device
11/06/14 - 20140328226 - The embodiments of the present invention relate to the field of wireless communication technology, especially relate to a data transmission method and device, which are used for supporting the signal reception and transmission between other entities other than the communication between a user device and a base station in the...

Method, base station, and system for synchronizing lte-tdd network and wimax network
11/06/14 - 20140328227 - A method, a base station, and a system are provided for synchronizing an LTE-TDD network and a WiMAX network. The method includes: synchronizing the LTE-TDD network and the WiMAX network with a same clock source; determining a frame format of the WiMAX network; determining a half-frame format of the LTE-TDD...

Method and device for transmitting/receiving transmission mode information on user terminal in inter-band tdd transmission scheme
11/06/14 - 20140328228 - The present invention relates to a method of receiving transmission mode information on a user terminal in an inter-band TDD transmission scheme. The present invention includes, at a base station controlling two or more bands with different time division duplex (TDD) settings, receiving a user terminal function information message that...

Communication method and wireless device in tdd-based wireless communication system
11/06/14 - 20140328229 - Provided are a communication method and a wireless device in a time division duplex (TDD)-based wireless communication system. A wireless device receives a setting for a first special (S) subframe of a first cell to which a first timing advance (TA) is applied and a setting for a second S...

Method for transmitting uplink control channel by terminal in wireless communication system
10/30/14 - 20140321337 - A method for transmitting an uplink control channel by a terminal in a wireless communication system that supports a plurality of serving cells for the terminal, comprises a step of receiving information on a plurality of serving cells include a P-cell and at least one S-cell constructed for the terminal...

Method and apparatus for applying pusch/phich scheduling timing in inter-band tdd transmission schemes
10/30/14 - 20140321338 - The present invention relates to a method and apparatus for applying PUSCH/PHICH scheduling timing in inter-band TDD transmission schemes. According to an embodiment of the present invention, the method for applying PUSCH/PHICH scheduling timing in inter-band TDD transmission schemes by a base station for controlling two or more different TDD...

Frame structure and signaling arrangement for interference aware scheduling
10/23/14 - 20140313948 - Frame structures and signaling arrangements for interference aware scheduling may be applicable to a local area radio system to complement existing wide area cellular systems, like GSM/UMTS/HSPA/LTE. In certain embodiments a method is provided including preparing a frame for transmission in a wireless communication system. The method can also include...

Signaling and procedure design for cellular cluster contending on license-exempt bands
10/23/14 - 20140313949 - The specification and drawings present a new method, apparatus and software related product (e.g., computer readable memory) for implementing a device-to-device communication of cellular, e.g., LTE, wireless devices on a shared band (e.g., ISM 2.4 GHz band), including the signaling and procedure design for contending or coordinating with the already...

Method for transmitting control information and apparatus therefor
10/23/14 - 20140313950 - A method and device for transmitting uplink control information in a wireless communication system supporting carrier aggregation and operating in TDD are discussed. The method includes transmitting hybrid automatic repeat request acknowledgements (HARQ-ACKs) feedback bits o(0),o(1),o(2),o(3) on a physical uplink shared channel (PUSCH), wherein the HARQ-ACKs feedback bits corresponds to...

Dual-tier wireless communication system
10/16/14 - 20140307594 - Systems and methods for communicating data over a dual-tier wireless communication system are provided. A dual-tier wireless communication system comprises an upper tier cell-free large-scale antenna system including a plurality of service-antennas distributed in a designated coverage area for providing wireless access service to mobile terminals, and a lower tier...

Methods and apparatus for employing multiple subframe configurations for harq operations
10/16/14 - 20140307595 - Certain aspects of the present disclosure relate to methods and apparatus for employing multiple subframe configurations. A UE may identify a first reference subframe configuration (RSC) to use as a reference for hybrid automatic repeat request (HARQ) operations for transmissions on an uplink, and a second RSC to use as...

Harq/ack codebook size determination
10/16/14 - 20140307596 - Embodiments of the present disclosure describe devices, methods, computer-readable media and systems configurations for determining a hybrid automatic repeat request (HARQ)-acknowledgment (ACK) codebook in wireless communication networks....

Method and apparatus for controlling transceiving of physical channels in time division duplex communication system
10/16/14 - 20140307597 - Disclosed are a method and an apparatus for controlling the transceiving of physical channels in a time division duplex (TDD) communication system. The method comprises: a step of determining whether a point of time of HARQ ACK/NACK transmission in component carrier #1 and a point of time of the transmission...

Communication control device, communication control method, terminal device, program, and communication control system
10/16/14 - 20140307598 - Provided is a communication control device that controls radio communication conducted by a terminal device according to a time-division duplex (TDD) scheme on a radio communication network, the communication control device including a configuration section that configures, for each frame that includes a plurality of subframes, a link direction configuration...

Systems and methods for configuration signaling
10/09/14 - 20140301255 - A User Equipment (UE) for receiving time-division duplexing (TDD) uplink/downlink (UL/DL) configurations is described. The UE includes a processor and instructions stored in memory that is in electronic communication with the processor. The UE receives a first TDD UL/DL configuration for a cell and secondary configuration information that includes at...

Uplink power control enhancement for dynamic time division duplex uplink-downlink reconfiguration
10/09/14 - 20140301256 - Systems, methods, apparatuses, and computer program products for power control enhancement are provided. One method includes retrieving, by an eNB, subframe type information in connection with uplink (UL)/downlink (DL) configuration. The method then includes simultaneously indicating, using physical layer signaling, at least one of the subframe type information and/or corresponding...

Harq timing design for a tdd system
10/02/14 - 20140293842 - Disclosed are methods and apparatuses related to receiving one or more indications of time division duplex (TDD) uplink/downlink (UL/DL) configurations for two consecutive radio frames. Based on the indications of the TDD UL/DL configurations, a reference TDD UL/DL configuration may be identified for one or more Hybrid Automatic Repeat reQuest...

Downlink signaling for adaptation of an uplink-downlink configuration in tdd communication systems
10/02/14 - 20140293843 - An apparatus includes a User Equipment (UE) having a receiver and a decoder. The receiver is configured to receive, from an eNodeB (eNB), a signal indicating a configuration of a period to receive one or more Physical Downlink Control CHannels (PDCCHs) in respective one or more Transmission Time Intervals (TTIs)....

Dynamic tdd configuration method and a base station using the same
10/02/14 - 20140293844 - Accordingly, the present disclosure is directed to a dynamic time division duplex (TDD) configuration method and a base station using the same method. According to one of the exemplary embodiments, the present disclosure is directed to A dynamic TDD configuration method, applicable to a base station, and the method includes...

Scheduling apparatus and method for a tdd communication system
10/02/14 - 20140293845 - The present invention relates to a scheduling apparatus (100) and a method for a cellular Time-Division Duplex (TDD) radio communication system (180). The apparatus comprises a storage unit configured for holding a database comprising topographical information concerning a geographical area covered by the communication system. The apparatus also comprises a...

User equipment and base station using dynamic tdd configuration mechanism
10/02/14 - 20140293846 - The present disclosure is directed to a user equipment and a base station which use a dynamic time division duplex (TDD) configuration mechanism. The present disclosure proposes implementing the dynamic TDD mechanism by imposing a restriction to the dynamic TDD configurations to adhere to a set of allowable dynamic TDD...

Duplexing in long term evolution (lte) cellular networks
09/25/14 - 20140286205 - A duplexing method is provided that combines aspects of Frequency Division Duplex (FDD) and Time Division Duplex (TDD) methods in a network, such as a Long Term Evolution (LTE) network. The duplexing method may be implemented on an existing FDD network by replacing the FDD uplink (UL)-only radio frame with...

Tdm-based resource partition between two radio base stations
09/25/14 - 20140286206 - The present disclosure discloses a method of Time Division Multiplexing (TDM)-based resource partition between two radio base stations (RBSs) with which a User Equipment (UE) is to perform dual connectivity and an associated radio network node. The method comprises the step of forming at least two non-overlapping Uplink (UL) subframe...

Apparatus and method of performing channel estimation in a wireless communication system
09/25/14 - 20140286207 - A method and apparatus of performing channel estimation in a wireless communication system are provided. The method includes determining a channel response value of a midamble sequence included in a downlink slot, detecting a first channel response value of a window allocated to a user and a second channel response...

Generation of harq-ack information and power control of harq-ack signals in tdd systems with downlink of carrier aggregation
09/25/14 - 20140286208 - Methods and apparatus are provided for a User Equipment (UE) configured to have multiple cells in a DownLink (DL) of a Time Division Duplex (TDD) communication system so as to determine a power of an acknowledgement signal that the UE transmits in a control channel and to determine a number...

Allocating resources for shared and non-shared downlink wireless resources
09/25/14 - 20140286209 - Sending information to user equipment (UE) indicating which time slots are not for use by a downlink shared channel is provided. Downlink shared channel resources in shared channel time slots are allocated for UEs. The UEs are subsequently sent downlink shared channel data in the shared channel time slots and...

Systems and methods for timeslot assignment in a wireless network
09/18/14 - 20140269450 - A mobile station in a communications system includes hardware and software stored on a tangible computer readable medium that, during operation, cause the mobile station to receive a timeslot assignment from a wireless network and operate based on the received timeslot assignment. The timeslot assignment may be based on whether...

Transmission of sounding reference signals for adaptively configured tdd communication systems
09/18/14 - 20140269451 - Methods and apparatus of a base station or a User Equipment (UE) in communication with each other are provided. The UE is configured by the base station for operation with an adapted Time Division Duplex (TDD) UpLink-DownLink (UL-DL) configuration. A process enabling transmission of a Sounding Reference Signal (SRS) from...

Transmission of acknowledgement information in adaptively configured tdd communication systems
09/18/14 - 20140269452 - Methods and apparatus of a base station or a User Equipment (UE) in communication with each other are provided. The UE is configured by the base station for operation with an adapted Time Division Duplex (TDD) UpLink-DownLink (UL-DL) configuration. A process enabling transmission of acknowledgement information from the UE for...

Computing and transmitting channel state information in adaptively configured tdd communication systems
09/18/14 - 20140269453 - Methods and apparatus of a base station or a User Equipment (UE) in communication with each other are provided. The UE is configured by the base station for operation with an adapted Time Division Duplex (TDD) UpLink-DownLink (UL-DL) configuration. A process enabling transmission of Channel State Information (CSI) from the...

Uplink power control in adaptively configured tdd communication systems
09/18/14 - 20140269454 - Methods and apparatus of a base station or a User Equipment (UE) in communication with each other are provided. The UE is configured by the base station for operation with an adapted Time Division Duplex (TDD) UpLink-DownLink (UL-DL) configuration. A process enabling UL power control for transmissions of various channels...

Method for wireless communication based on relay and apparatus for the same
09/18/14 - 20140269455 - Methods for wireless communications based on relay and apparatuses for the same are disclosed. The method for a terminal to transmit signals comprises receiving scheduling information from a base station connected to the terminal; generating uplink data based on the scheduling information; performing punctuation on a data symbol positioned in...

Method, an apparatus and a computer program product for flexible tdd configuration
09/18/14 - 20140269456 - The invention relates to the radio interface between an apparatus for wireless communication and a network element, comprising flexible uplink/downlink configuration for time division duplex. The method comprises detecting a parameter indicating interference in a subframe of a time division duplex configuration; assigning a priority Physical Resource Block set for...

Method and apparatus for handling the tdd tail problem for an abs pattern
09/18/14 - 20140269457 - An interference problem for UE retransmissions at the end of a Sequence Frame Number pattern, in a system wherein a macro base station (12) employs Almost Blank Subframes (ABS) to avoid interference with a micro base station (16), is avoided by first recognizing that an ABS pattern will reset at...

Device and method for transmitting tdd downlink data in an lte system
09/18/14 - 20140269458 - A device for transmitting TDD downlink data in an LTE system includes: a data buffer sequentially loading IP data irregularly delivered from a layer 3 processing unit; a transmission control unit providing instructions for the creation of an ordinary downlink sub-frame PDU queue and a special sub-frame PDU queue at...

Method and apparatus for resource management, low-bandwidth user equipment, and user equipment
09/11/14 - 20140254438 - A method and an apparatus for resource management, and a low-bandwidth user equipment. The method for resource management includes: determining, according to a system downlink transmission bandwidth or according to a system downlink transmission bandwidth and a maximum downlink transmission bandwidth of a low-bandwidth user equipment, a downlink transmission resource...

Method and apparatus using modified subframes
09/11/14 - 20140254439 - The herein disclosed apparatus, systems, and methods use Almost Blank Subframes (ABS) to manage interference between D2D and WAN transmissions. In particular, an eNodeB is disclosed comprising a controller module operable to obtain an indicator of a need for a quiescent subframe, and to select responsively thereto a subframe of...