Abstract: A method and a system for determining the existence of broadcast/multicast frames buffered in an access point (AP) are used to avoid wakening a station (STA) unnecessarily. The method includes: when receiving broadcast/multicast frames sent from a service network and/or multicast group, an AP sets a broadcast/multicast indication bit that associates the service network and/or multicast group to the valid state and sends frames that carry the broadcast/multicast indication bit to a STA; the STA determines whether there are broadcast/multicast frames buffered in the AP according to the associated service network and/or multicast group and the received broadcast/multicast indication bit. Embodiments of the present disclosure also disclose an AP and a STA. The AP can identify whether there are broadcast/multicast frames buffered in an AP.

Abstract: An embodiment of the present disclosure provides a method for data acquisition. The method includes the following steps: transmitting a request message for acquiring line parameters to a central-office end access apparatus, and obtaining a time parameter T1 when the line parameter acquisition is started; receiving line parameter information reported by the central-office end access apparatus, and obtaining a time parameter T2 of a line; and comparing the time parameter T1 with the time parameter T2 of the line, and saving the received line parameter information if the time parameter T1 is larger than the time parameter T2 of the line. Embodiments of the present disclosure further provide an apparatus and a system for data acquisition.

Abstract: A method comprises terminating transmission of a first frame having a first class of service when a transmission failure is detected, incrementing an attempt count for the first class of service, transmitting a second frame having a second class of service before retransmitting the first frame if the second class of service is higher than the first class of service, and discarding pending frames for the first class of service when at least one of the attempt count exceeds a predetermined attempt threshold and the first class of service falls below a predetermined discard threshold.

Abstract: An access node anchoring a connection to, e.g., a PDSN in a core network establishes a session with a mobile station and assigns the mobile station an identifier such as a UATI. The anchor node sends the UATI to the PDSN, such as in a GRE key where the data link is a GRE tunnel. If the anchor node fails and data addressed to the mobile station comes to the PDSN, it may initiate a page for the mobile using the UATI. The anchor node may additionally send the PDSN the session seed and optionally the mobile station's network location. A registration zone may be defined to include access nodes within a predetermined distance of the anchor node, and the mobile station forced to re-register when moving outside of the registration zone. In this case, the PDSN may initiate a page for the mobile station only within the registration zone.

Abstract: 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-send (PTS) frame. A wireless network includes a source station adapted to transmit a RTS frame and a destination station adapted to transmit a CTS frame. The wireless network also includes a partner station adapted to send a PTS frame.

Abstract: The method and apparatus described herein controls transmission from a plurality of user terminals to an access point on a random access channel in a wireless communication system. An access point determines an allowed information rate for each user terminal and transmits a rate control parameter indicative of the allowed information rates to the user terminals. The access point also computes a packet transmission probability and transmits the packet transmission probability to the use terminals on a common control channel. The packet transmission probability controls the number of user terminals that transmit in a given time slot to reduce collisions and increase the departure rate. The user terminals selectively transmit one or more packets to the access point in a time slot on the random access channel based on the allowed information rate and the packet transmission probability.

Abstract: Mesh Network Access Points (APs) points, including gateways and routers, are deployed over a geographic area. The APs monitor the communication channel for other carriers and transmit accordingly. The APs selectively co-transmit when other carriers are sensed, if the efficiency of the mesh network will improve. APs select a transmission rate based on observed carrier-to-interference ratios. APs use directional antennas to increase carrier-to-interference ratios and spectral efficiency. AP transmit schedules are adaptable and adjusted according to observed carrier-to-interference measurements.

Abstract: A method of providing switch arbitration for the passing of packets between transmitters and receivers in a switch having a plurality of transmitters and receivers, comprises globally distributing information about buffer contents and packet requests between transmitters and receivers.

Abstract: 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 or tiers that are responsible for different functions within the network. Each node of the multi-tier network is configured to forward data to other nodes and is assigned to a particular tier based on the node's performance capabilities. The method may include the automatic establishment of a unique Internet protocol (IP) address within a multi-hop wireless home mesh network with the ability to do automatic collision detection and correction. Once established as either a mobile node or a stationary node of the wireless home mesh network, a new node (the home electronics device) may wirelessly communicate with one or more existing nodes of the wireless home mesh network. Other embodiments are described and claimed.

Abstract: A cognitive radio base station may transmit, for each channel, common control channel information to a plurality of cognitive radio terminals at different points in time, respectively. Accordingly, the cognitive radio base station may receive a channel allocation request from the plurality of cognitive radio terminals receiving the common control channel information and allocate a plurality of channels to the plurality of cognitive radio terminals, respectively, to perform communication. In response to another terminal existing in a corresponding channel, the cognitive radio base station may update the common control channel information and switch to another channel to transmit subsequent common control channel information at, for example, a closest point in time to thereby broadcast the updated common control channel information to the plurality of cognitive radio terminals using the switched channel.

Abstract: A base station transmits a random access response in response to a random access request (random access preamble) of a user equipment. The random access response includes information about a time when the random access request is transmitted and sequence number information of the random access request (random access preamble). The user equipment checks whether the received random access response is the response of the random access request transmitted by the user equipment, using the information about the time when the random access request is transmitted and the sequence number information included in the received random access response.

Abstract: A cable user interface, such as a cable for audio headphones, enables control of one or more aspects of operation of a device to which such cable is connected. A user touches/applies pressure to the cable user interface, either along the full length of the cable, or to a localized part of the cable, in order to control the device. A mechanism is included for interfacing the pressure sensitive controller(s) to the device so that pressure/touch applied by a user can be translated to control of the device. In one embodiment, a headphone cable itself is an input device for volume and playback control of a portable media player.

Abstract: A method and system for implementing network device access management. The system includes at least one device domain storage unit and at least one Access Server (AS), and the method groups all network devices into at least one device domain managed by at least one AS; sets a uniform communication attribute for each device domain; determines, by the AS, whether a communication device belongs to the device domain managed by the AS according to information carried in a service request from the communication device, and if so, the communication attribute set for the network device is obtained, and a correspondence relationship between an identifier of the network device and the obtained communication attributes is created and stored; otherwise, access management on the communication device served as a user device is performed.

Abstract: A method includes indicating a state associated with a priority service subscription indicator, indicating a state associated with a priority service activation indicator and receiving an input request for invoking a priority service for a priority communication. The method further includes determining whether a user of a user device is a subscriber of the priority service based on the state associated with the priority service subscription indicator and establishing network resources on which the priority communication is to be transmitted, based on at least one of the state associated with the priority service subscription indicator or the state associated with the priority service activation indicator.

Abstract: 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 access feedback channel (P-RAFCH) is satisfied, a physical resource is randomly selected among a plurality of physical resources assigned for the P-RAFCH and a pre-configured signal is sent using the selected physical resource. A Node-B receives the pre-configured signal from a plurality of WTRUs and calculates a number of the WTRUs based on a number of used physical resources. The transmission criterion is at least one of successful reception of a data packet on a downlink physical channel, successful reception of a data block on a data service, reception of a signaling command, occurrence of a measurement event, and failure to receive a transmission after a specified number of times.

Abstract: An 802.11 source station transmits a signal with the duration field other than that required for the transmission to prevent transmission by other stations during known sequences. Thus, the source station uses the duration field to spoof the actual time the medium will be occupied, to stations within range of the signal. A station within range of the transmitted signal will check the duration field of the transmitted signal, and update the station's network allocation vector. Thus, the station will not transmit because the station's network allocation vector indicates that the medium is in use, even though the station maybe unable to hear the carrier. Accordingly, spoofed stations may, for example, 1) delay transmission until a more critical transmission has completed, 2) allow unknown or foreign protocol to have preferential use of the medium, 3) prevent interference from hidden stations, and 4) allow sharing of the medium by overlapping basic service sets.

Abstract: Apparatus (48), and an associated method, for facilitating operation of a mobile node (12) operable in a communication system (10) to request allocation of communication capacity upon which to communicate data pursuant to a communication service. A channel allocation request generator (52) is selectably operable to generate requests for allocation of channel capacity upon which to communicate the data. A selector (54) selects when to cause the generator (52) to communicate the additional data packets. Selection is made to delay, or otherwise prevent, retransmission of requests, when a determination is made that the retransmission is unlikely to be successful.

Abstract: A distributed VoIP system includes a first switch coupled to a network and configured to provide voicemail features to a first group of one or more users. The system also includes a voicemail server coupled to the network. The voicemail server is configured to provide voicemail features to a second group of one or more users. The first switch is configured to store voicemail data associated with only the first group, and the voicemail server is configured to store voicemail data associated with both the first and second groups.

Abstract: Assigning slots to nodes in a mesh network. Slot numbers are assigned to nodes in a wireless mesh network using a depth-first search combined with information on 2-hop neighborhoods for each node. Assigning slots using 2-hop neighborhood information allows slots to be safely reused. The slot assignment process may take process in parallel using different wireless channels for different subtrees rooted to a controller. Slot assignment may be repeated when the mesh topology changes. Reporting using the slot numbers allows for information from child nodes to be aggregated or filtered at parent nodes.

Abstract: System and method for handling multiple connection requests between an Access Terminal (AT) and an Access Network (AN). The method may include receiving a first connection request. Connection request information regarding a number of connection requests may be updated based on receiving the first connection request. If there is not a currently active wireless connection, a connection may be established between the AT and the AN. If there is a currently active wireless connection, a notification may be sent indicating that the wireless connection between the AT and the AN has been established. A connection release request may be received. Accordingly, the update connection request information may be updated based on receiving the connection release request. If there is not a currently active wireless connection, the wireless connection between the AT and the AN may be closed.

Abstract: A mobile node registers with a wireless telecommunications network to obtain a mobile node registration having a registration time period. Before the registration time period expires, the mobile node's registration is renewed, if a renewal criterion is met. The renewal criterion distinguishes between user data traffic and automatic data traffic.

Abstract: Dynamic frequency selection based on CR is provided. A CR BS detects an interference-free and unused frequency band. When sensing a new BS that has great signal strength and requires the frequency band during communications in the frequency band, the CR BS releases the frequency band and dynamically selects another frequency band to avoid interference.

Abstract: System and methodologies are provided herein for multiuser scheduling in a multiple-input multiple-output (MIMO) communication system. Various aspects described herein facilitate full feedback scheduling, wherein multiuser scheduling is performed based on an antenna selection and signal quality feedback, such as signal-to-interference-plus-noise ratio (SINR) feedback, from respective users. Based on information received from respective users, independent information streams can be transmitted from respective transmit antennas to respective users with the highest signal quality. Receive antenna selection can also be employed to allow respective users to select a single receive antenna on which information is to be received. Additional aspects described herein facilitate quantized feedback scheduling, wherein scheduling is performed based on signal quality feedback that is quantized into a finite number of bits by respective users.

Abstract: A method for performing random access in a wireless communication system is provided. The method includes transmitting a preamble for random access in uplink, receiving a random access response message including back-off information as a response to the preamble, and performing back-off using the back-off information when the random access has failed.

Abstract: A technique is provided for determining estimated location of a wireless communication device (WCD) in a network. A first AP transmits a first RSSI data request message, including a BSSID to the WCD at a first time over a radio channel. The WCD then transmits a first response message to the first AP, which then transmits a first measured RSSI value to a trilateration engine (TE). At a different, second time, a second AP can switch to the radio channel and transmit a second RSSI data request message that includes the BSSID of first AP to the WCD over the radio channel. In response, the WCD transmits a second response message to the second AP, which then transmits a second measured RSSI value to the TE. A third AP performs a similar message exchange. This technique collects RSSI information from the WCD at the APs without disrupting any of their connections.

Abstract: A technique is disclosed that enables both an IEEE 802.11 transceiver and a Bluetooth transceiver to be employed in a single wireless telecommunication station (e.g., a device supporting a wireless telephone, personal digital assistant, etc.) without interfering on each other. In particular, the illustrative embodiment enables standard “off-the-shelf” IEEE 802.11 and Bluetooth transceivers to work in a coordinated fashion in a single telecommunications terminal. In the illustrative embodiment, an IEEE 802.11 transceiver that uses a shared-communications channel notifies a Bluetooth transceiver that a transmit opportunity exists and that the Bluetooth transceiver has permission to use the shared-communications channel. The technique disclosed is also applicable to communications protocols other than IEEE 802.11 and Bluetooth.

Abstract: a communication system comprises a plurality of downstream transmission systems configured to transmit downstream wireless communications to an area having a plurality of sectors over a plurality of downstream channels to a plurality of users in the plurality of sectors and a plurality of upstream receiver systems configured to receive upstream wireless communications over a plurality of upstream channels from the plurality of users in the plurality sectors. In an embodiment, the plurality of upstream channels comprise multiple contention channels associated with each of the plurality of sectors and a plurality of bearer channels associated with each of the plurality of sectors and the plurality of upstream receiver systems are further configured to receive a plurality of requests from the plurality of users over the multiple contention channels for access to the plurality of bearer channels.

Abstract: A method for performing random access in a wireless communication system is provided. The method includes transmitting a preamble for random access in uplink, receiving a random access response message including back-off information as a response to the preamble, and performing back-off using the back-off information when the random access has failed.

Abstract: A system (400), device (401), and method are provided for decentralized medium access control comprising periodic beacon (600) transmissions of all active devices in beacon slots (204) (302) (303), grouping such beacon slots (204) (302) (303) in at least one contiguous dynamic beacon period (301), and expanding or shrinking this at least one contiguous dynamic beacon period (301) depending on the number of occupied beacon slots (204) (302) (303). The dynamic beacon period (301) adapts to devices (401) joining and leaving the network (400) as well as to collisions of beacon frames (600) on the medium (410).

Abstract: A cooperative diversity method and apparatus that can minimize interference and maximize an efficiency of a transmission channel between terminals of a cooperative diversity pair, the method including: determining a pair of terminals to be a cooperative diversity pair according to a spectrum sensing result of a cognitive radio (CR); selecting a subchannel through which data is exchanged between the pair of terminals; and transmitting the data between the pair of terminals through the selected subchannel.

Abstract: Included are embodiments for communicating data using a plurality of formats. At least one embodiment of a method includes transmitting a plurality of first format data frames with a predetermined time period between transmitted first format data frames and determining a duration of the time period between the transmitted first format data frames. Similarly, some embodiments include fragmenting a second format data frame into a plurality of second format subframes such that the second format subframes may be transmitted during the time period between the transmitted first format data frames.

Abstract: One aspect of the present invention relates to a base station wherein either resource blocks resulting from division of a system bandwidth into blocks of consecutive frequency subcarriers or distributed type resource blocks consisting of frequency subcarriers discretely distributed within the system bandwidth and resulting from segmentation of the resource blocks into multiple resource blocks are assigned to mobile stations, the base station including: a scheduling unit configured to assign either the resource blocks or the distributed type resource blocks to the mobile stations at a predefined assignment cycle based on respective downlink reception channel states transmitted from the mobile stations.

Abstract: An arbiter for a device arranged to be coupled to a serial bus, the arbiter comprising a means for obtaining identifier information associated with one more other devices coupled to the serial bus and; means for determining a priority level based upon an identifier associated with the device and identifier associated with one of the other devices.

Abstract: A method for administering transmission of a first type of packets and a second type of packets over a serial bus. In one embodiment, the method comprises: if there is a packet of a second type to be sent, then concatenating the packet of the second type to a plurality of packets of the first type and sending the plurality of packets of the first type followed by the concatenated packet of the second type; and if there is no packet of the second type to be sent, then concatenating a bogus ack packet to the plurality of packets of the first type and sending the plurality of packets of the first type followed by the concatenated bogus ack packet.

Abstract: A method includes identifying a white space at a first wireless node and selecting a channel in the identified white space. The white space includes at least one frequency or frequency band not in use (like a licensed frequency or frequency band). The method also includes identifying at the first wireless node a channel access factor for each of multiple wireless nodes including the first wireless node. The method further includes determining if the first wireless node has a specified channel access factor. In addition, the method includes transmitting data from the first wireless node on the channel when the first wireless node has the specified channel access factor. The channel access factors can be identified and the determination whether the first wireless node has the specified channel access factor can be performed without using control signals transmitted between the wireless nodes. The channel access factor could represent a hash function value.

Abstract: 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 master node device and at least one slave node device and to a method of contention in a network of nodes. The method of contention according to the present invention is method in a network comprising slave nodes, said slave nodes comprising a group of first slave nodes, the method comprising the step of sending, by every first slave node participating in a contention, a number of two or more contention participation messages during a contention window associated with the first slave node.

Abstract: A traffic prioritization system and method performs a coarse classification of upstream bursts at the physical interface of a wireless communications device. The wireless device monitors and controls communications with a plurality of remote wireless communications devices throughout a widely distributed network, including the Internet. The traffic prioritization system includes a burst receiver that receives and sends the upstream bursts to a classifier. At an appropriate time, the classifier receives the upstream bursts and queries a priority lookup table (LUT) to determine a priority classification. The priority classification is used to separate the bursts into two or more priority levels. The higher priority level is used to designate services having a low tolerance for delay, such as telephony. Upon classification, the upstream bursts are forwarded to one of several priority queues. Each priority queue corresponds to at least one priority level.

Abstract: Method and apparatus for arbitrating prioritized cycle streams in a manner that prevents starvation. High priority and low priority arbitration pools are employed for arbitrating multiple input cycle streams. Each cycle stream contains a stream of requests of a given type and associated priority. Under normal circumstances in which resource buffer availability for a destination device is not an issue, higher priority streams are provided grants over lower priority streams, with all streams receiving grants. However, when a resource buffer is not available for a lower priority stream, arbitration of high priority streams with available buffer resources are redirected to the low priority arbitration pool, resulting in generation of grant counts for both the higher and lower priority streams.

Abstract: A method of effectively setting and changing a Receive Channel Set (RCS) of a cable modem (CM) is provided. The method includes: receiving, by a Cable Modem Termination System (CMTS), a Receive Channel Profile (RCP) with respect to a downstream physical layer of a CM; composing, by the CMTS, a plurality of channel configuration information required for setting the RCS of the CM with reference to the RCP; encoding, by the CMTS, the plurality of channel configuration information, and transmitting the encoded plurality of channel configuration information to the CM; transmitting, by the CM, an RCP with respect to a downstream physical layer to a CMTS; receiving, by the CM, a plurality of channel configuration information being composed with reference to the RCP and being required for setting the RCS; and setting, by the CM, the RCS using the plurality of channel configuration information.

Abstract: A method of transmitting a message via an uplink access channel in a wireless communication system is disclosed. The method includes initiating a first preamble access procedure with Node B, receiving from Node B a first acknowledgement indication with respect to the first access preamble procedure, transmitting to Node B a first message upon receipt of the first acknowledgement indication, and receiving from Node B a second acknowledgment indication regarding the first message.

Abstract: Device connection routing for controllers is provided. A computing device is configured with multiple controllers that provide connections for peripheral devices. The controllers enable the peripheral devices to interact with the computing device through a bus. Each device connection is routed to one of the multiple controllers based on one or more pre-determined factors. These factors may include load-balancing, power saving, quality of service, data flow requirements, and the like. Device connection routing may be dynamically managed to respond to changing states of the peripheral devices and the controllers. The device connection routing may be performed for controllers associated with any type of wired or wireless buses, such as Universal Serial Bus (USB), IEEE 1394, Secure Digital Input/Output (SDIO), and the like.

Abstract: In an ECU, a level adjusting unit communicable to first and second control circuits and a bus transceiver installed in the ECU receives first data and second data respectively transmitted from the first and second control circuits. The bus transceiver is communicable to a communication bus. When the first data and the second data are simultaneously received, the level adjusting unit merges the first data and the second data such that a first electric level of the first data wins with a second electric level of the second data. The level adjusting unit outputs the merged data to the bus transceiver.

Abstract: 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 by sending data to a transmit signal input of the network transceiver in accordance with the protocol. At a circuit level associated with the network transceiver, a received signal in the transceiver is detected at a time of sending data to the transmit signal input. In response to this detection, transmission of the packet is prevented.

Abstract: Methods and systems to perform collision detection (CD) in a communication network are disclosed. Methods and systems over multipacket reception (MPR)-capable physical layers are also disclosed. In one embodiment, the method for transmitting information in a network includes the steps of initiating transmission over a communication channel, monitoring a feedback channel, modifying transmission parameters for the transmission over the communication channel (where modifying includes stopping transmission and adjusting transmission parameters), if a feedback transmission is detected while monitoring the feedback channel, a duration of the feedback transmission being smaller than duration of the transmission over the communication channel, and determining whether transmission was successful, if transmission continues after modifying transmission parameters. Other embodiments of methods for transmitting and receiving information, as well as systems that implement the methods, are also disclosed.

Abstract: A method for transmitting data, the data to be transmitted being divided into at least two data packets; the data packets being transmitted in at least two transmission modes; an assignment between the data packets and the transmission modes being made in such a way that one of the transmission modes is assigned to each data packet; at least one data packet, to which a first transmission mode is assigned, being transmitted in a second transmission mode.

Abstract: A method and system for dynamic credit sharing in a quick path interconnect link. The method including dividing incoming credit into a first credit pool and a second credit pool; and allocating the first credit pool for a first data traffic queue and allocating the second credit pool for a second data traffic queue in a manner so as to preferentially transmit the first data traffic queue or the second data traffic queue through a link.

Abstract: Methods and apparatus related to broadcasting data and interference management in a peer to peer wireless communications network are described. Scheduling of traffic air link resources is performed on a slot by slot basis in a decentralized manner. Wireless devices intending to broadcast traffic signals transmit broadcast request signals, sometimes alternatively referred to as broadcast indicator signals. A priority level is associated with each of the broadcast request signals. A receiver device intending to receive broadcast signals detects the broadcast request signals and makes an interference determination as to whether the higher priority broadcast traffic signal can be successfully recovered in the presence of lower priority broadcast traffic signals.

Abstract: The invention relates to a system of at least two distributed wind turbines where the at least two wind turbines communicate via a data communication network, the data communication network communicates monitoring and control data (MCD) to and from the at least two wind turbines (WT), the data communication network communicates power control related data (PCRD) to and from the at least two wind turbines (WT), the power control related data (PCRD) has higher transmission priority than a subset of the monitoring and control data (MCD) and where the transmission priority is defined in relation to a protocol.

Abstract: A method for collision avoidance in multiple protocol networks using a shared communication medium begins by determining a first protocol probable active time period. The method continues by determining a first protocol probable inactive time period. The method continues by generating a transmit blocking indication based on the first protocol probable active time period and the first protocol probable inactive time period.

Abstract: A method of establishing wireless communications between an interrogator and individual ones of multiple wireless identification devices, the method comprising utilizing a tree search method to establish communications without collision between the interrogator and individual ones of the multiple wireless identification devices, a search tree being defined for the tree search method, the tree having multiple levels representing subgroups of the multiple wireless identification devices, the number of devices in a subgroup in one level being half of the number of devices in the next higher level, the tree search method employing level skipping wherein at least one level of the tree is skipped.