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Multiplex Communications > Channel Assignment Techniques > Carrier Sense Multiple Access (csma) Carrier Sense Multiple Access (csma)Carrier Sense Multiple Access (csma) 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.10/18/07 - 20070242688 - Dynamic value reporting for wireless automated systems A wireless automation device monitors a condition and wirelessly reports an event over an automation network in response to detecting a change in the condition. The condition is sampled at a variable periodic interval, and the event reported during intervals when a change in the condition is determined. The change ... 10/11/07 - 20070237168 - Process and devices for selective collision detection The present invention concerns a method in a network comprising at least a first device and a second device, where the sending of a packet by two devices simultaneously generates a collision. The method comprises the steps of emitting by the first device a packet comprising a first part, and ... 10/04/07 - 20070230499 - Hybrid access to a contention-free period channel To increase bandwidth, a channel, which normally is limited to contention-free transmissions, is used for other purposes during times when it is not needed for contention-free transmissions. Although the channel is located in a contention-free portion of a beacon cycle, supplemental uses of this channel include the contention-based transmission of ... 09/13/07 - 20070211748 - Wireless network channell access techniques An embodiment of the present invention provides an an apparatus, comprising a transmitter capable of sampling a medium in a wireless network and if idle, accessing the medium, and if busy, waiting a random time within a predetermined range and re-sampling the medium. Prior to a first sampling of the ... 08/30/07 - 20070201505 - Wireless communication terminal and wireless communication method A communication terminal used in a mobile communication system complying with a carrier sense multiple access scheme is disclosed. The communication terminal includes: a receiving unit configured to receive a wireless packet transmitted by another communication terminal or a base station; a determination unit configured to determine periodic transmission timing ... 07/19/07 - 20070165666 - Adaptive synchronous media access protocol for shared media networks In some embodiments of the present invention, asynchronous network nodes and synchronous network nodes coexist on a shared media network. ... 07/19/07 - 20070165665 - System and method for access control in wireless networks A method comprises obtaining a frame of information in an access class to be communicated over a wireless channel; determining whether the wireless channel is idle; selecting a random arbitration interframe space based on the access class of the frame; waiting a first time period pertaining to the arbitration interface ... 07/05/07 - 20070153822 - Media access control device for high efficiency ethernet backplane A improved Media Access Control (MAC) module specification is presented. The MAC module specification includes configurable support for: a reduced minimum packet size, a reduced inter-frame-gap size, a reduced preamble, receive and transmit clock generation. Benefits may be derived from protocol overhead reductions. Processors adhering to the improved MAC module ... 06/21/07 - 20070140289 - Transceiver power backoff A device and method of setting transmit power backoff of a transceiver within a network is disclosed. The method includes estimating a channel loss of a channel of the transceiver, obtaining channel loss information, the channel loss information including estimates of channel loss of other channels of the network, obtaining ... 06/07/07 - 20070127516 - Multi-carrier wireless communication access terminal and data transmission method A method, apparatus, and system permits an access terminal (“AT”) for a multi-carrier CDMA wireless communication system to concurrently receive data on N different-frequency carriers while restricting one or more parameters that affect data reception rate, so that limited resources of the AT will be sufficient to properly process data ... 05/24/07 - 20070116033 - Carrier sensing multiple access with collision avoidance scheme optimized for a priori known carrier usage for low duty cycle systems Systems and methods for a communication system implementing a short range communication link between devices advertising available information and services, and user devices which may initiate a request for further information or services. The communication system provides a low power solution utilizing an optimized combination of a carrier sensing and ... 05/24/07 - 20070116032 - Open cable broadcast processing apparatus and control method thereof, and cable card software upgrading method for open cable system An open cable broadcast processing apparatus and control methods are provided. The broadcast processing apparatus includes a tuner to tune a cable signal supplied from a delivery system, an interface which is connected with a cable card descrambling the cable signal supplied through the tuner; and a controller which controls ... 05/24/07 - 20070116031 - Anti-collision method and system in wireless network system An anti-collision method and system in a wireless network system are provided. The anti-collision method includes: transmitting a beacon signal including information related to an owner type of a first device and information related to an available time interval of the first device; transmitting information related to a time interval ... 05/17/07 - 20070110091 - Medium access apparatus and method for preventing a plurality of stations in a wireless local area network from colliding with one another A method and apparatus for preventing a plurality of stations in a wireless local area network (WLAN) where a plurality of high throughput (HT) stations and a plurality of 802.11 legacy stations coexist from colliding are provided. The method includes generating a data frame having an HT format by inserting ... 05/03/07 - 20070098009 - Method for accessing hybrid network, and gateway apparatus, wireless terminal and communication system thereof A method for accessing a hybrid network including a wide area network and a distributed network, a gateway apparatus, a wireless terminal and a gateway communication system are disclosed for reducing the power consumption of the wireless terminal which is an access gateway. The method comprises: sensing by a gateway ... 04/19/07 - 20070086473 - Scalable synchronous packet transmit scheduler A baseband controller system creates and maintains a schedule of synchronized events and reviews the schedule as a part of determining whether to initiate a transmission of a non-synchronous event (one that is not time sensitive, for example, e-mail). One aspect of the present invention is to create a system ... 04/05/07 - 20070076744 - Communications system Problem: Communications networks comprising a multitude of nodes suffer frequent transmission collisions, the performance of their transmission paths goes unavailed, and delays occur in transmission. The invention provides a communications system capable of high-speed transmissions without collisions. Solution: A rhythm node is provided on the communications network, and upstream transmissions ... 04/05/07 - 20070076743 - Method and related apparatus for realizing network medium access control In network systems having a wireless medium, such as IEEE802.11e based networks, each frame of a station is classified as one of a plurality of traffic categories, and frames of some traffic categories have a higher transmission opportunity than frames of other traffic categories. Before a station transmits frames to ... 04/05/07 - 20070076742 - Medium access control method and apparatus in wireless distributed network A pair scheduling medium access control method used in a wireless network, comprises the steps of: checking, by a receiving node, whether a transmitting node has data packets to be subsequently sent, according to data packets received from the transmitting node; when the transmitting node has no data packets to ... 04/05/07 - 20070076741 - Apparatus and method for transmitting data in a wireless local area network An apparatus and method are provided for transmitting data in a station of a wireless local area network (LAN) system. In the apparatus, a data queue stores transmission data, and a data processor processes data output from the data queue. A radio frequency (RF) module up-converts a signal output from ... 03/22/07 - 20070064721 - System and method for transmission scheduling using network membership information and neighborhood information Admitting a new node into a network without collisions and providing collision-free transmission of packets into a channel, such that: an upper bound can be enforced for the time elapsed between two consecutive time slots assigned to the same node; no collision-avoidance handshake is required for each packet transmission, and ... 03/22/07 - 20070064720 - Collision avoidance media access method for shared networks A method includes scheduling a grid of sub-burst slots in a media access plan, each sub-burst slot having a shorter duration than a minimal transmission burst duration and representing an opportunity for the initiation of a data transmission by a network device. A network device includes a sub-burst slot scheduler ... 03/15/07 - 20070058661 - Media access control architecture Systems and methods which provide a scheduled media access control (MAC) architecture are shown. Scheduled MAC architectures provided according to embodiments result in a one function-at-a-time approach, wherein stations are provided parallel process media access. A communication framework is established for communication among stations, wherein the communication framework preferably defines ... 03/15/07 - 20070058660 - Wireless communication method and apparatus for controlling access to aloha slots A method and apparatus for controlling access to Aloha slots are disclosed. An access point (AP) assigns at least one Aloha slot for a wireless transmit/receive unit (WTRU). The AP may assign the Aloha slot based on quality of service (QoS) policy, measurements of a predetermined metric, or combination of ... 03/15/07 - 20070058659 - Method for providing requested quality of service Methods, devices, and systems are provided wherein connections are requested with a connection specification that is based on whether the request is between a higher layer entity and a lower layer entity, between two stations, or between a station and a central coordinator. The connection specification may include QOS parameters ... 02/01/07 - 20070025386 - Bandwidth management in a powerline network There is provided a powerline network that includes a number of stations including a central coordinator for coordinating transmissions of each of the stations. Each of the stations is configurable to generate one or more tone maps for communicating with each of the other stations in the powerline network. Each ... 02/01/07 - 20070025385 - Residential ethernet node device for transmitting synchronous data using counter and synchronous data transmitting method thereof A residential Ethernet node device for transmitting synchronous data uses a counter in a residential Ethernet system. The device includes a parser for receiving residential Ethernet data from external other node devices, and parsing the received Ethernet data as synchronous data and asynchronous data. An asynchronous switch switches and transmits ... 02/01/07 - 20070025384 - Synchronizing channel sharing with neighboring networks The embodiments of the present invention provide a mechanism to synchronize centralized networks. Each centralized network includes a central coordinator controlling and managing network activities. The embodiments provide a way of allocating beacon slots, such that one of the beacon slots is synchronized to the alternating current line cycle and ... 01/25/07 - 20070019665 - Tiered contention multiple access(tcma): a method for priority-based shared channel access Quality of Service (QoS) support is provided by means of a Tiered Contention Multiple Access (TCMA) distributed medium access protocol that schedules transmission of different types of traffic based on their service quality specifications. In one embodiment, a wireless station is supplied with data from a source having a lower ... 01/25/07 - 20070019664 - Tiered contention multiple access (tcma): a method for priority-based shared channel access Quality of Service (QoS) support is provided by means of a Tiered Contention Multiple Access (TCMA) distributed medium access protocol that schedules transmission of different types of traffic based on their service quality specifications. In one embodiment, a wireless station is supplied with data from a source having a lower ... 12/14/06 - 20060280198 - Low duty cycle half-duplex mode operation with communication device Operating a communication device in a half-duplex mode using only overhead channels; and substantially free running a timing reference obtained during reception to allow a timing reference value to drift during transmission. ... 12/07/06 - 20060274778 - System and method for detecting collisions in a shared communications medium A system for detecting collisions in a shared communications medium, such as a TDMA medium, includes a receive path adapted to generate a first intermediate signal, a second intermediate signal, and a data symbol sequence from an input signal. A preamble detection module generates a correlation metric from the first ... 12/07/06 - 20060274777 - Radio transceiver and radio transmitting method In a mobile communication system, multiple transceivers perform radio communications in the same frequency band. A transceiver (700) comprises a first sync timing detection part (706) configured to detect sync timing for a desired signal transmitted from a counterpart transceiver; a second sync timing detection part (708, 710) configured to ... 12/07/06 - 20060274776 - Carrier sense multiplex access method, radio base station apparatus, and radio terminal apparatus A carrier sense multiple access method capable of improving throughput in a wireless network is disclosed. This method is implemented in a wireless network—for example, a wireless LAN (100)—having an AP (110) that is equipped with a multi-beam antenna (111) that forms a directional beam and that is capable of ... 11/30/06 - 20060268924 - Method and apparatus for dynamically adjusting a deferred transmission level and a transmission power level in a wireless communication system The present invention is a method and apparatus for dynamically adjusting deferred transmission level and a transmission power level in a wireless communication system implementing carrier sense multiple access/collision avoidance (CSMA/CA) mechanism. A plurality of transmission power levels and associated metrics are defined for an access point (AP) and a ... 11/09/06 - 20060251102 - Method and apparatus for dynamically adjusting deferred transmission level in a wireless communication system The present invention is a method and apparatus for dynamically adjusting deferred transmission level in a wireless communication system implementing carrier sense multiple access/collision avoidance (CSMA/CA) mechanism. An access point (AP) and a station (STA) measure signal strength from an associated STA and AP and neighboring APs and adjust the ... 11/02/06 - 20060245447 - Contention window adjustment methods capable of load-adaptive backoff in a network and machine-readable storage medium therefor A contention window adjustment method capable of load-adaptive backoff (LAB) function in a network. At least one middle contention window (CWmid) is set for a station. If the contention window (CW) of a station is greater than CWmid, then that station considers that the network traffic load is heavy. Similarly, ... 10/26/06 - 20060239293 - Data transmission method for wireless network Disclosed is a device and method that relates to radio engineering and especially to data transmission in a wireless local area network. The method improves the throughput of the wireless local area network, by selecting a transmission rate, data transmission mechanism and a fragment size which maximize the network throughput ... 10/05/06 - 20060221992 - Methods and systems for channel sensing multiple acces communication with multipacket reception Methods and Systems for communication using carrier sense multiple access (CSMA) with multipacket reception (MPR). ... 09/28/06 - 20060215686 - Communication method for accessing wireless medium under enhanced distributed channel access A method to adaptively control CW sizes in order to enhance throughput of real-time traffic even when an AP accept large number of real-time traffic is disclosed. Since default CW sizes for real-time flows are set to small values in order to achieve the service differentiation, real-time flows cannot meet ... 09/21/06 - 20060209876 - Access point using directional antennas for uplink transmission in a wlan An access point receives uplink transmissions from client stations using directional antenna beams. The directional antenna beams are generated by an antenna array. The different directional antenna beams are assigned beam identification numbers, and a preferred antenna beam is selected for each client station. The client stations in the different ... 09/21/06 - 20060209875 - Method and apparatus for current sharing ethernet power across four conductor pairs Methods and apparatus for delivering power down all conductors of an Ethernet connection are disclosed. Embodiments include control circuitry coupled to both conductor of an Ethernet cable. The control circuitry is configured to sense the current flowing through power switches coupled inline with the respective conductors and control the switch ... 09/21/06 - 20060209874 - Wireless packet communication method and wireless packet communication apparatus Data packets are transmitted between two STAs capable of using plural radio channels and MIMO together, by using idle channels and MIMO. When at least one idle channel has been detected, plural data packets are generated in the same number as the sum of MIMO numbers of the respective idle ... 09/14/06 - 20060203837 - Method of communicating with a network device A method is provided for operating a network device (340) in a wireless network (100). This method includes: joining the wireless network; transmitting a probe command (600) after joining the wireless network, the probe command being addressed to a reserved device identifier; listening for an acknowledgement to the probe command ... 08/24/06 - 20060187952 - Methods and systems for providing priority access to 802.11 endpoints using dcf protocol A method for providing priority access to 802.11 endpoints. The method includes the steps of sending a Clear To Send (CTS) frame from a designated station, without requiring a Request to Send (RTS) frame from a first station. The CTS frame includes a field identifying the first station for commencing ... 08/24/06 - 20060187951 - Apparatus and method of controlling transmission of response frame Briefly, a method and apparatus to able to set a back-off slot time value and a contention window back-off slots number of a channel access mechanism to control transmissions of two or more response frames from two or more Responders in respond to receiving a data unit of an aggregated ... 08/03/06 - 20060171409 - Communication control apparatus for determining data transmission timing with node type and a state variable A communication control apparatus, mounted on each node of a telecommunications system, receives node type information selected by a neighboring node, and transmits node type information selected by the own node and node type information of another node. The apparatus receives the state variable signal of the neighboring node reflecting ... 08/03/06 - 20060171408 - System and method for asynchronous wireless collision detection with acknowledgment for ad hoc wireless networks The present disclosure relates generally to a system and method for asynchronous busy-tone multiple access with acknowledgement for ad hoc wireless networks. In one example, the method includes emitting a tone after determining that a transmission is incoming from a sending node. An initial portion of a packet comprising the ... 07/27/06 - 20060165114 - Medium reservation with channel selectivity A medium-reservation mechanism improves transmission efficiency in a multiple-channel network that includes stations with limited-selectivity receivers. The mechanism employs a medium-request signal that conveys channel information. In this network, stations check the channel information in the medium-request signal to decide whether or not to comply with the medium-request signal. If ... 07/13/06 - 20060153223 - Telecommunications system for determining the probability of and avoiding collision between data transmissions In a transmission timing control apparatus, a state variable signal affected by a phase representing the data transmission timing of a neighboring node is used to determine the data transmission timing of the own node. A node information transmitter/receiver transmits source identification information particular to the own node and source ... 07/13/06 - 20060153222 - Protocol configuration method activating the selected type for further operation and thereby enabling the substation to communicate with the main station according to the selected type of protocol. (FIG. 1). ... 06/29/06 - 20060140208 - Wireless communication synchronization A method of communicating among wireless devices includes providing a frequency hopping schedule to a target device. The frequency hopping schedule includes a sequence of frequencies. The method also includes, at the target device, alternately sleeping and listening on a frequency in the sequence of frequencies according to the frequency ... 06/08/06 - 20060120399 - Method enabling multiple communication nodes to access a transmission means on an electrical grid Method enabling multiple communication nodes to access a transmission means on an electrical grid, which permits access in a fair manner by nodes on a shared medium such as the electrical network, achieving the maximum access speed when there are no collisions between reservation requests and the detection of coexistence ... 06/01/06 - 20060114927 - Hybrid telephone, non-telephone network A hybrid network includes telephone and non-telephone network media. The communication devices communicate along the hybrid network according to a media access plan. The non-telephone communication devices do not have collision detection although the telephone communication devices do. The non-telephone communication devices have higher power and sensitivity levels than the ... 05/25/06 - 20060109860 - Asynchronous network system, information processing apparatus, data-transmission managing method, data-reception managing method, and program An asynchronous network system includes a transmitting apparatus which transmits time-synchronization-information data through an asynchronous network, and information processing apparatuses which share identical time information by receiving the time-synchronization-information data. At least one data item whose transmission and reception within a predetermined reaching time are requested to be guaranteed is ... 05/25/06 - 20060109859 - Method and system for efficient and reliable mac-layer multicast wireless transmissions A method and system for reliable multicasting on a communication network includes sending Request-to-Send (RTS) signals from a sender node of the network to the receiver nodes, the RTS signals include a set of identifiers corresponding to the receiver nodes. The Clear-to-Send (CTS) signals and Acknowledgment (ACK) signals are sent ... 05/18/06 - 20060104302 - Method of configuring system layers for synchronous ethernet A method of configuring system layers for a synchronous Ethernet is provided. In the method, a physical layer takes charge of input and output of an Ethernet frame in direct relation to hardware, an xMII (x Media Independent Interface) layer connects the physical layer to a data link layer. The ... 05/18/06 - 20060104301 - Adaptive communication protocol for wireless networks A communication protocol that provides link-level and media access control (MAC) level functions for wireless (e.g., ad-hoc) networks and is robust to mobility or other dynamics, and for scaling to dense networks. In a mobile or otherwise dynamic network, any control-packet collisions will be only temporary and fair. In a ... 05/11/06 - 20060098681 - Fibre channel over ethernet The present invention provides methods and devices for implementing a Low Latency Ethernet (“LLE”) solution, also referred to herein as a Data Center Ethernet (“DCE”) solution, which simplifies the connectivity of data centers and provides a high bandwidth, low latency network for carrying Ethernet and storage traffic. Some aspects of ... 05/04/06 - 20060092965 - Information terminal and information terminal system An information terminal incorporates a network interface and an extension interface, and in the case of outside call, an audio send signal is modulated into an audio signal frequency band, and sent to the exchange through a private telephone line and a subscriber's line by way of the network interface. ... 04/13/06 - 20060077997 - Terminal apparatus When operating as a control terminal and recognizing interference from another logical network, a terminal apparatus determines whether or not a logical network to be controlled is unified with the other logical network. When unification is determined, the terminal apparatus determines whether a control terminal of a logical network newly ... 03/09/06 - 20060050727 - Communication timing control method and apparatus, node, and communication system Each node in a communication system transmits and receives state variable signals indicating internal node states or timings, generates transitions in its internal state or timing at a basic rate but at timings adjusted according to the received state variable signals, transmits data in time slots synchronized to the output ... 03/02/06 - 20060045118 - Communication system using near field and method thereof Provided is a communication system using a near field and a method thereof, which uses a conductive medium, i.e., a human body, and comprises a plurality of peripheral devices having a communication device for transmitting and receiving a predetermined data signal through the near field formed around the human body, ... 03/02/06 - 20060045117 - Adaptive mac architecture for wireless networks Devices and methods for observing characteristics of a wireless communication network environment and adjusting at least two different communication configuration parameters substantially at a same time based on the observed characteristics. The devices and methods may monitor radio resource measurements and initiate adaptive smarts for adjusting communication parameters of various ... 02/23/06 - 20060039399 - Communication device and communication mode setting method A disclosed first communication device includes a communication mode detecting part for detecting a predetermined communication mode with respect to a second communication device, a communication mode setting part for setting a communication mode of the first communication device, and a jam signal detecting part for detecting a jam signal ... 02/23/06 - 20060039398 - Isochronous transmission for ip-oriented network A method and apparatus for communicating streaming data, such as audio and video streams, isochronously over a network. The invention may be utilized with power-line communication (PLC) networks or other IP-based networks. Hardware is configured for packetizing the streaming data, such as MPEG streaming data, which is communicated at the ... 02/16/06 - 20060034317 - Method and apparatus for transmitting ack frame An efficient burst ACK method and apparatus in wireless communication environment are provided. An ACK frame transmission method whereby plural frames are received from a transmitting device and receipt of the frames is acknowledged with a single ACK frame includes receiving frames from the transmitting device and storing identification information ... 02/02/06 - 20060023735 - Versatile low power driver for gigabit ethernet systems The present invention provides a system for optimizing transmission output power for a Gigabit Ethernet communications system (100). A PHY operational layer (104) is provided, with a backoff construct (102) that is at least partially implemented within the PHY operational layer. A second end component (108) is communicatively coupled to ... 01/05/06 - 20060002419 - Apparatus and method for transmitting 10 gigabit ethernet lan signals over a transport system A computer system and method for transmitting 10 Gigabit Ethernet (10GE) LAN signals over transport systems. Standard 10GE LAN signals are generated in any client IEEE 802.3 10GE LAN compliant interface. A transceiver receives the client 10GE LAN signal in the LAN format. The client 10GE LAN signals are not ... 12/08/05 - 20050271075 - Incentive-based dsl system Improved DSL and/or other communication system services can be provided by motivating users, service providers and operators to implement and comply with one or more operational conditions, such as parameter value limits and/or ranges, that enhance operation of the communication system. Enhanced operation can include providing a reward such as ... 11/17/05 - 20050254513 - Method of selectively adjusting the configuration of an access point antenna to enhance mobile station coverage A wireless communication system includes a plurality of wireless transmit/receive units (WTRUs) and an access point (AP). The AP communicates with the WTRUs via an antenna. In one embodiment, the AP configures the antenna to a wide beam configuration that covers a desired service area and transmits a Request-To-Send (RTS) ... 11/10/05 - 20050249234 - Transceiver and communication method for digital multi carrier communication The present invention relates to a transceiver and communication method involving a time division multiple transmission method, which performs data transmission among a plurality of transceivers. The transceiver includes a transmitter sending data, a receiver receiving data, a switch operable to switch among connecting the transmitter to a transmission line, ... 10/27/05 - 20050238043 - Numerically controlled drive device with device for detecting operating anomalies intended for detecting accidental collisions and method of detecting operating anomalies for this device A drive device for a load (18a) comprises a device for detecting accidental collisions with a motor (14a), a first, respectively a second position sensor (15a, 16a) disposed upstream, respectively downstream of a transmission assembly (12a) providing first and second values of position. A calculation unit (20) makes it possible ... 09/29/05 - 20050213602 - Methods for providing prioritized communications using a carrier sense multiple access protocol A method of communication is provided in which a node maintains a condition table which includes at least one condition unrelated to network traffic conditions, which if met triggers the node to reserve a set of time windows for receiving communications. During those time windows, the node refrains from initiating ... 09/15/05 - 20050201409 - Apparatus and method for rapid detection of unidirectional breaks in a network ring Normal 802.3 Ethernet requires a tree topology. If a ring or a loop exists, then packets will be forwarded around the ring indefinitely. If the ring is broken, then there is no possibility of packets being propagated forever. This invention shows how to quickly impose a virtual break in the ... 09/01/05 - 20050190784 - Access protocol for wireless ad hoc networks using synchronous collision resolution An ad hoc network organizes itself to provide communications without need for an a priori designated central control mechanism or base stations. Such self-organization is challenging in a multihop ad hoc network having member nodes that are highly mobile and widely distributed. A Synchronous Collision Resolution (SCR) protocol is well ... 08/25/05 - 20050185664 - Method and apparatus providing a protocol to enable a wireless tcp session using a split tcp connection Disclosed are a method and a system that operates in accordance with the method to set up a TCP session between a MS and an end point destination via a wireless network and the Internet. The method includes sending a split TCP connection request from the MS to a PEP ... 08/04/05 - 20050169297 - System for powering a switch over data communication cabling infrastructure A system for generating, delivering and distributing electrical power to network elements over a data communication network infrastructure within a building, campus or enterprise. Consolidating power distribution and data communications over a single network simplifies and reduces the cost of network element installation and provides a means of supplying uninterrupted ... 08/04/05 - 20050169296 - Temporary priority promotion for network communications in which access to a shared medium depends on a priority level A method of operating in a network in which a plurality of stations communicate over a shared medium (e.g., using a carrier sense multiple access (CSMA) service). The stations contend for access to the shared medium using a contention procedure that relies on a priority level, wherein transmissions with a ... 07/28/05 - 20050163150 - Method and apparaus for setting, transmitting and receiving data for virtual carrier sensing in wireless network communication Methods and apparatuses for setting, transmitting, and receiving virtual carrier sensing information in wireless network communications are provided. A receiving station in a wireless communications network receives a frame transmitted according to various modulation schemes and extracts information concerning virtual carrier sensing from a portion of the frame modulated using ... 07/21/05 - 20050157744 - Apparatus and method for transmission collision avoidance A system and method are described for reducing data transmission collisions in a shared transmission medium. In one embodiment, transmission priorities are set by means of priority-defining transmissions. In another embodiment, statistically equal access is assured by means of unique transmit start time slot pairs wherein the paired start time ... 06/30/05 - 20050141545 - Performance of a wireless communication system The invention relates to a device to be used in a wireless communication system with CSMA-based MAC, comprising means for transmitting at least a first and a second RTS message and at least a first and a second data packet on a transmission medium, and a spatially selective antenna. It ... 06/30/05 - 20050141544 - Media access controller The present invention relates to a media access controller, and more particularly, to a media access controller which can adjust operational parameters according to a setting environment of a packet transmission system by re-setting the operational parameters of the media access controller by an external source. A media access controller ... 06/23/05 - 20050135408 - Hybrid implicit token carrier sensing multiple access/collision avoidance protocol Provided is a distributed and asynchronous implicit token carrier sense multiple access/collision avoidance (CSMA/CA) protocol guaranteeing quality of service for both real time and non-real time traffic. The implicit token CSMA/CA protocol allocates a band in an entire bandwidth to voice traffic and allows the remaining bands to be used ... 06/23/05 - 20050135407 - Collision avoidance method for home automation devices using an ethernet hub This invention discloses a method for collision avoidance in Ethernet networks, such as home automation networks, with both personal computers and control devices attached to it. Ethernet hubs are considered as the type of device used to create the Ethernet network. When a network management message is sent as a ... 06/16/05 - 20050129052 - Apparatus and method for auto-negotiation in a communication system A communication system includes a first device and a second device that can advertise multiple capabilities using communication links. A first type of auto-negotiation between the first and second devices is performed using a first communication link between the devices. A second communication link between the devices is used to ... 06/16/05 - 20050129051 - Self-configuring physical carrier sensing threshold adaptation Apparatuses and methods for dynamically adjusting carrier sensing threshold levels in a wireless, such as CSMA, system. A station may use the carrier sensing measurement made in normal CSMA operation to determine a threshold level for the local station, and transmit the determined level to other stations in the system. ... 06/16/05 - 20050129050 - Multiple access communication system for moveable objects A non-complex low cost communication, navigation and identification system and method for use with moveable or stationery objects on the same frequency without interference. The present invention listens before each transmission and transmits only when there are no other protocols transmitting, thus avoiding communication collisions and supporting high channel load ... 06/09/05 - 20050122989 - Method and apparatus to estimate collision rate parameter Briefly, a method and apparatus to estimate a collision rate parameter by manipulating a first probability value with a second probability value. The first probability value may be the probability of an attempt to transmit a data packet within a desired time slot of a contention window. The second probability ... 06/02/05 - 20050117600 - Communication in a data network The invention relates to a method and a system for communication in a data network (101), in particular switched Ethernet, and a user (102) in such a data network (101). To reduce the communication resources required for the transmission of telegrams (119-135) in the data network (101), it is proposed ... ### FreshPatents.com Support |