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| Number | Title | Issue Date |
| 8175109 | Beaconless communication system The present invention relates to an energy efficient mechanism for establishing and maintaining a communication between nodes (A . . . F) in a wireless communication system. In particular, it relates to a distributed low power medium access control (MAC) mechanism f... | 05/08/2012 |
| 8170049 | Method of random access and a method of transporting information in broadband wireless access system A method of performing random access in a broadband wireless access system is disclosed. The method includes performing first random access through at least one of a plurality of random access channels, receiving information about the number of access-failed channel... | 05/01/2012 |
| 8170048 | Dynamic spectrum allocation and access for user device Methods, systems, and apparatus, including computer program products, in which access allocations to a spectrum band and transmit rights to the access allocations are defined. Real-time auction bids for the transmit rights to the access allocations to the spectrum b... | 05/01/2012 |
| 8165153 | Method and apparatus for concurrent operation of wireless communication protocols A method and apparatus of coordinating operation of two or more subsystems implementing different wireless communication protocols is disclosed. The method comprises coordinating operation of a first subsystem implementing a first wireless communication protocol and... | 04/24/2012 |
| 8149865 | Cognitive radio communication terminal and method for detecting collision using feature detection A cognitive radio communication terminal including a transmission processing unit to divide data by a quiet time slot that is allocated at a first point in time of a collision detection period, to transmit at least one portion of the divided data to a reception side... | 04/03/2012 |
| 8144724 | Apparatus and method for resolving request collision in a high bandwidth wireless network Apparatus and method for reducing collisions on an enhanced access channel in a high bandwidth wireless network during a push-to-talk (PTT) communication between a plurality of user devices. A random delay field is introduced to a set of access parameters and the ra... | 03/27/2012 |
| 8126007 | Wireless systems and methods including cooperative communication medium access control A complementary medium access control (CMAC) method and apparatus are described. A method of wireless communication includes transmitting a request-to-send (RTS) frame and transmitting a clear-to-send (CTS) frame. The method also includes transmitting a partner-to-s... | 02/28/2012 |
| 8116336 | Distributed IP address assignment protocol for a multi-hop wireless home mesh network with collision detection An apparatus and method for a multi-tier wireless home mesh network is described. The method may include formation of a wireless home networking environment comprising a collection of nodes that operate as a decentralized, wireless network with multiple sub-networks... | 02/14/2012 |
| 8107490 | Communication device comprising a carrier sense function and communication method A communication device of an example of the present invention comprises a first unit determining that whether a state is a first state indicating that a transmission medium is in use, a second state indicating that the transmission medium is not in use, or a third s... | 01/31/2012 |
| 8102871 | Method and apparatus for medium reservation and medium reservation modification in a communication system In a network environment, a wireless medium is reserved for transmissions. Medium reservation modifications can be requested and granted wherein a master device allocates a medium using reservations that are observed by other devices sharing the medium and a slave d... | 01/24/2012 |
| 8098680 | Method and system for managing transmissions in a wireless communication network The present invention provides a method for managing transmissions in a wireless communication network (100). The method at a first node (102) of a plurality of nodes of the wireless communication network includes transmitting (304) a data frame... | 01/17/2012 |
| 8094672 | Method of packet mode digital communication over a transmission channel shared by a plurality of users A first aspect of the invention is a method of transmitting data packets over a transmission channel shared by a plurality of users, based on the time and/or frequency diversity slotted Aloha technique, in which at least two replicas of each packet to be transmitted... | 01/10/2012 |
| 8089982 | Method and apparatus for medium reservation and medium reservation modification in a communication system with medium reservation modification granted without requiring additional medium arbitration Medium reservation modifications can be requested and granted wherein a master device allocates a medium using reservations that are observed by other devices sharing the medium and a slave device complies with reservations by holding data for transmission until its... | 01/03/2012 |
| 8068511 | Method and apparatus for sending feedback for a downlink shared service and estimating a number of wireless transmit/receive units A method and an apparatus for sending a signal on a contentious feedback channel for a downlink shared service and for estimating a number of wireless transmit/receive units (WTRUs) are disclosed. When a transmission criterion associated with a physical random acces... | 11/29/2011 |
| 7990997 | Contention based media access mechanism The present invention relates to the field of contention in a network of communicating nodes. The present invention especially relates to a master node for a communication network, to a slave node device for a communication network, to a network comprising the maste... | 08/02/2011 |
| 7990996 | Data transmission A data transmission network having at least two devices to transmit and receive data with the devices connected via a passive transmission device so that the data is transmitted between the devices using the passive transmission device. Each of the devices includes ... | 08/02/2011 |
| 7970004 | Method and system for providing multicast contention resolution An approach is provided for providing contention resolution for resources of a network. Individual contention resolution parameters are determined for respective multicast groups of terminals. The terminals within each of multicast groups able to perform contention ... | 06/28/2011 |
| 7965734 | Device network interface The terminal device has a network transceiver and a processor having a first program to cause the processor to transmit a packet of data using the network transceiver in accordance with a data transmission protocol. The first program begins transmission of a packet ... | 06/21/2011 |
| 7944940 | Method and apparatus for media access in contention-based networks A method and apparatus are described for gaining access to a communication medium in a contention-based network, including determining a slot count based on a number of stations in the contention-based network, adjusting the slot count, initiating a frame transmissi... | 05/17/2011 |
| 7894467 | Adaptive medium access control for wireless communication system A method is provided for adapting a contention window for a given node in a wireless communication system. The method includes: defining a target parameter indicative of congestion on a transmission medium; determining a number of transmitting nodes ready to access ... | 02/22/2011 |
| 7885287 | Method and apparatus for adaptive network allocation A method and apparatus for adaptive network allocation are described herein. In some embodiments, a node may receive a request-to-send (RTS) packet that includes duration information and a basic service set identifier (BSSID). The network node may update a network a... | 02/08/2011 |
| 7843956 | Wireless system, wireless communication apparatus and communication method A wireless communication system complying with a CSMA scheme includes one or more wireless communication apparatuses and a communication terminal that performs communication via the one or more wireless communication apparatuses. Each wireless communication apparatu... | 11/30/2010 |
| 7801168 | Systems and methods for multi-slotted power saving multiple polling in wireless communications Embodiments include systems and methods for scheduling transmissions of information in a wireless network. Embodiments comprise determining a service interval that is a multiple of a service interval granularity period, the multiple depending upon a type of informat... | 09/21/2010 |
| 7792137 | Self-organized and self-managed ad hoc communications network A self-organized and self-managed ad hoc network operates without the intervention of arbitration, collision detectors, hubs, master controllers, switches, or routers. The network may include both fixed and/or mobile stations. A self-organized and self-managed order... | 09/07/2010 |
| 7756153 | Distributed method and apparatus for allocating a communication medium The invention provides a method and apparatus for end-users to allocate a communication medium locally without requiring a central arbitration device while guaranteeing access to the end-users. The end-users bid for control of an upstream data channel by concurrentl... | 07/13/2010 |
| 7742496 | Simultaneous serial transmission of messages with bit-arbitrated selection of the numerically largest or smallest value in the messages' data fields A communication system has a number of nodes connected to a serial data bus. Nodes communicate with each other by transmitting dominant and recessive bits during bit intervals as taught by the CAN (controller area network) arbitration protocol. According to the CAN ... | 06/22/2010 |
| 7738480 | 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 cy... | 06/15/2010 |
| 7733897 | Channel allocating method for random access A channel allocating method for random access is disclosed, which is suitable for allocation of uplink RACH in a radio access network and by which random access processing performance in a radio access network is enhanced using RACH of new structure. The present inv... | 06/08/2010 |
| 7715426 | Communication method and communication device as well as computer program Communication performed within a network including a plurality of communication stations is provided, in which when an access control is performed so that communication timing of a packet can not collide with that of another station by detecting a signal which is tr... | 05/11/2010 |
| 7706398 | Dynamic priority based message transmitting apparatus, priority adjusting apparatus using the same, and dynamic priority message processing method A dynamic priority based message transmitting apparatus includes a priority storing block for recording priorities in a communication network environment having multitude nodes and recording the lowest priority among the priorities, a communication bus monitoring bl... | 04/27/2010 |
| 7697562 | 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) mod... | 04/13/2010 |
| 7693175 | Prioritized access in a multi-channel MAC protocol A method, apparatus and computer program product for providing a prioritized MAC protocol for a WLAN or wireless mesh using a time filtering technique wherein a time limit (Advanced Interval For Reservation or AIFR) is imposed on the time prior to the expiration of ... | 04/06/2010 |
| 7684430 | Frame-based aggregation and prioritized channel access for traffic over wireless local area networks A method comprises receiving by a MAC layer of a content server a transmission frame from an upper layer of the content server, the transmission frame being associated with a given access class of multiple access classes, the given access class being associated with... | 03/23/2010 |
| 7664133 | High level message priority assignment by a plurality of message-sending nodes sharing a signal bus A system has a plurality of nodes communicating with each other on a serial data path using dominant and recessive signal levels. A dominant signal level sent on the data path by any of the nodes creates a dominant signal level on the data path irrespective of the n... | 02/16/2010 |
| 7630394 | Method, apparatus and computer-readable code for data compression of network packets Methods, apparatus and computer readable code for compression, encoding and decoding of units of data such as packets are disclosed. In some embodiments, methods, apparatus and computer readable code for transmitting and/or receiving the data packets (for example, t... | 12/08/2009 |
| 7626997 | Methods and systems for estimating access/utilization attempt rates for resources of contention across single or multiple classes of devices Systems and methods are described for estimating attempt rates for access/utilization of a resource(s) by a plurality of devices, in which rate analysis window timeslot data and a simulated attempt rate model are used to estimate the current attempt rate for the res... | 12/01/2009 |
| 7616655 | Avoiding exposed node problems in wireless local area networks A method, apparatus and computer program product for avoiding exposed nodes in Wireless local Area Networks is presented. The method includes maintaining at a node a first timer (NAV_RTS) for a channel which, if set, prevents the node from authorizing a transmission... | 11/10/2009 |
| 7606258 | Enhanced channel access mechanisms for an HPNA network A method and a system provide access to a communications medium that is suitable for allowing use of a plurality of Home Phoneline Network Association (HPNA) v2 frames in a centralized manner. Each HPNA v2 frame is timed to allow an Inter-Frame Gap (IFG) portion hav... | 10/20/2009 |
| 7602803 | Communication timing control method and apparatus, node, and communication system Each node on a communication path receives state variable signals from other nodes indicating the internal operating states or internal timing of the other nodes, and transmits a state variable signal indicating its own internal operating state or timing. Transition... | 10/13/2009 |
| 7586933 | Network comprising an interconnecting network and several network nodes that are coupled to said interconnecting network The invention concerns a network comprising an interconnecting network and several network nodes that are coupled to said interconnecting network and are designed to adapt their local communication time schedule to the communication time schedule of at least one oth... | 09/08/2009 |
