Abstract: Aspects of a serial clear to send to self message procedure are presented. Aspects of a system may include a wireless local area network station (STA), which enables transmission of a channel reservation confirmation message, such as a CTS frame, via a reference RF channel, for example, a primary channel. The STA may enable transmission of one or more subsequent channel reservation confirmation messages, for example CTS frames, via a corresponding one or more subsequent RF channels, for example, a secondary channel. The STA may enable transmission of data frames via the reference RF channel and/or at least a portion of the corresponding one or more subsequent RF channels.

Abstract: Techniques for performing automatic gain control (AGC) at a terminal in a wireless communication network are described. In an aspect, the terminal may use different receiver gain settings to receive different types of signals in different time intervals. The terminal may determine a receiver gain setting for each signal type and may use the receiver gain setting to receive signals of that signal type. In another aspect, the terminal may determine a receiver gain setting for a future time interval based on received power levels for peer terminals expected to transmit in that time interval. The terminal may measure received power levels of signals received from a plurality of terminals. The terminal may determine a set of terminals expected to transmit in the future time interval and may determine the receiver gain setting for the future time interval based on the measured received power levels.

Abstract: A method for interpreting timing information at a communication support entity operable to communicate wirelessly, includes the steps of: at a first time at the communication support entity, receiving an indicator of a predetermined form over a link from another communication support entity; receiving over the link data representing one or more relative times; interpreting each such relative time represented by the received data as indicating the absolute time that is offset after the first time by the respective relative time together optionally with a latency value; and determining in dependence on the received data the manner in which the communication support entity is to communicate wirelessly at that absolute time.

Abstract: Methods and apparatuses for transmitting and receiving downlink common channels such as synchronization channel and broadcast channel in a cellular communication system supporting bandwidth scalability are provided. The downlink physical data channel transmission method for a base station of a cellular communication supporting bandwidth scalability according to the present invention includes generating a first system information specific to Long Term Evolution (LTE) terminals; generating a second system information specific to LTE-Advanced (LTE-A) terminals, the second system information including information on entire system bandwidth, a number of subbands constituting the entire bandwidth, and subbands on which common control channels are transmitted; transmitting the first information and the second information on a system information channel; and instructing, when a terminal attempts to camp on, a subband on which the terminal to camp.

Abstract: An assigning unit defines multiple subchannels that are frequency-division multiplexed and assigns, to at least one terminal apparatus, two or more subchannels for each of the downlink and uplink symmetrically. The assigning unit includes discontinuous subchannels in the subchannels assigned for each of the downlink and uplink. A modulator and a transmitter transmit a multicarrier signal to a terminal apparatus. A receiver and a demodulator receive a single carrier signal from a terminal apparatus. The receiver and demodulator use one or more continuous subchannels among two or more subchannels in the uplink by switching those two or more subchannels.

Abstract: A method of conveying transport block size (TBS) information includes determining TBS parameters for a wireless transmission of data between a first node and a second node based on a first number of transmission layers associated with the wireless transmission. The method also includes generating a control message indicating the TBS parameters and transmitting the control message to the second node. The method also includes transmitting a transport block to the second node in accordance with the TBS parameters indicated by the control message. The transport block is transmitted over a first number of transmission layers. The method also includes retransmitting the transport block to the second node in accordance with the TBS parameters indicated by the control message. The transport block is retransmitted over a second number of transmission layers that differs from the first number of transmission layers.

Abstract: In order to improve the quality of transmission and reception of data packets, the method of transmission using several antennas comprises: an encoding of a first data packet into a first encoded block; a mapping of first transmission frequency channel to a first set comprising at least a transmission antenna; a mapping of second transmission frequency channel to a second set comprising at least a transmission antenna, the first transmission frequency channel being different of the second transmission frequency channel; a transmission of the first encoded block on the first set of at least a transmission antenna and on the second set of at least a transmission antenna. The method of reception comprises a mapping of different frequency channel to reception antennas.

Abstract: Embodiments of a central controller and methods for interference mitigation in TDMA networks are generally described herein. In some embodiments, the central controller mitigates co-channel interference by randomizing locations of channel time allocations within superframes.

Abstract: A computer implemented method selects antennas in a multiple-input, multiple-output wireless local area network that includes multiple stations, and each station includes a set of antennas. Multiple consecutively transmitted sounding packets are received in a station. Each sounding packet corresponds to a different subset of the set of antennas. A channel matrix is estimated from the multiple consecutively transmitted sounding packets, and a subset of antennas is selected according to the channel matrix.

Abstract: Present invention provides a communication method and a communication system that can provide more detailed communication control, larger transmission capacity, and more flexible resource distribution to users in comparison with a communication method using a conventional frame format. There are provided a downlink frame generator 14 that generates a downlink frame for a downlink period in which a cell station 10 communicates with at least one personal station of the plurality of personal stations 20 in a predetermined frame format, and an uplink frame generator 24 that generates an uplink frame for an uplink period in which at least one personal station of the plurality of personal stations communicates with the cell station 10 in a predetermined frame format, wherein the frame format of the downlink frame includes a MAP field that notifies, in the downlink period, each personal station of information indicating an available or unavailable subchannel for each personal station.

Abstract: An efficient use of downlink (DL) air-interface bandwidth during handoff of user equipment from a source cell to a target is provided. In conjunction with a handoff message to ensure receipt, expedited status exchanges are provided so that initial communications do not require a subsequent retransmission of duplicate data. A method for transmitting a dedicated Random Access Channel (RACH) preamble and cell information, receiving a RACH from the user equipment to start communication, and transmitting a handover message and a radio link control (RLC) status message or an UL grant in response to receiving the RACH is provided. Also, a method for receiving a handover message and target cell information from a source cell to start handover negotiations, initiating communication with target cell using the target cell information, receiving a handover message and (RLC) status message, and using the received information to approximate status reporting is provided.

Abstract: A method and a system of detecting a duplicate service set identifier (SSID) via self-scanning in a WLAN are provided. An access point (AP), when a scan request is given, generates a probe request packet by inserting a SSID of the AP thereinto, transmits the probe request packet to neighbor APs, receives probe response packets, in response to the probe request packet, from the neighbor APs, detects SSIDs from the probe response packets, and informs the presence of a neighbor AP, the SSID of which is the same as that of the AP, if any of the detected SSIDs is the same as the SSID of the AP.

Abstract: A method for estimating timing in a wireless communication comprises the steps of receiving a plurality of symbol bursts corresponding to a plurality of time slots and selecting a subset of symbols from a first symbol burst of the plurality of symbol bursts. The subset comprises a first midamble symbol. The method further comprises the steps of calculating, for each symbol in the subset, a corresponding midamble estimation error, and determining the lowest calculated midamble estimation error to determine a timing for the first symbol burst. The method further comprises the steps of processing the first symbol burst utilizing the timing determined for the first symbol burst, and processing a second symbol burst of the plurality of symbol bursts utilizing the timing determined for the first symbol burst.

Abstract: In a system comprising a first access point serving a first wireless network; and a neighboring access point serving a neighboring wireless network having coverage overlapping with the first wireless network, where the first access point and the neighboring access point transmit beacon messages at beacon times that are temporally separated by predetermined beacon periods, a method of operating the system is disclosed, the method comprising: the first access point sending a first offer to the neighboring access point, the first offer offering a period of silent time to the neighboring access point during which period of silent time the first access point silences the first wireless network, the period of silent time being independent of the beacon times and the beacon periods.

Abstract: A radio communication system for a radio communication service and a terminal is provided, namely, a method for communicating data blocks between a base station and the terminal in Evolved Universal Mobile Telecommunications System (E_UMTS) or Long Term Evolution (LTE) System evolved from UMTS, and more particularly, to a method of effectively identifying a transmitter of a data block received by a receiver.

Abstract: A method for communicating with a network is presented. The method includes receiving an assignment of first timeslots for uplink communications, and receiving an instruction to reduce monitoring to a set of timeslots. The set of timeslots has a number of timeslots less than a number of timeslots to be monitored in accordance with the assignment. The method includes receiving a negative acknowledgement of a data block previously transmitted to the network, and, after receiving the instruction to reduce monitoring and the negative acknowledgement, transmitting a new data block to the network before retransmitting the data block previously transmitted to the network.

Abstract: In a communication system, a first base station wirelessly transmits a first base station access code. A second base station wirelessly transmits a second base station access code. A wireless communication device wirelessly receives the first base station access code and the second base station access code and processes the first base station access code and the second base station access code to generate a common access code. The wireless communication device wirelessly transmits the common access code. The first base station wirelessly receives the common access code and processes the common access code to initiate the registration of the wireless communication device with the first base station. The second base station wirelessly receives the common access code and processes the common access code to initiate the registration of the wireless communication device with the second base station.

Abstract: A method and system is disclosed for setting up, modifying and tearing down an up-stream communication session in a basic service set (BSS) in a wireless local area network (WLAN), so that the communication session has a defined Quality of Service (QoS). Regarding setting up an up-stream communication session, a first Path message and a first Resv message (Path/Resv message) of a RSVP protocol are detected at a designated subnet bandwidth manager (DSBM) in a station having a point coordinator (PC). The first Resv message originates from a RSVP agent of a host outside the BSS, and is a request for setting up an up-stream session between a source non-PC station in the BSS and the PC station. A QoS parameter set and a classifier from the first Path/Resv message for the session are extracted at the DSBM. The DSBM determines whether to admit the up-stream session to the network based on the QoS parameter set defining the session and a channel status report on a medium access control (MAC) sublayer of the BSS.

Abstract: Radio communication equipment performs radio communication with a first radio terminal group in a first period by using a frequency commonly for use by an adjacent base station, and with a second radio terminal group in a second period by using a frequency not commonly for use by the adjacent base station. The radio communication equipment includes a control unit to adjust time allocation of the first period and the second period; and a radio communication unit to perform radio communication with the first radio terminal group and the second radio terminal group according to the time allocation adjusted by the control unit.

Abstract: Systems and methodologies are described that facilitate multiplexing of localized transmissions and distributed transmissions to reduce overhead transmission costs. According to various aspects, systems and/or methods are described that enable selection of an optimal transmission scheme in order to accommodate various traffic services, user abilities and channel properties.

Abstract: System(s) and method(s) are provided to control access to a femtocell as part of handover of a mobile device from macrocell to femtocell. Macro network platform issues a handover (HO) request towards femto network platform and a single virtual femto node, which represents a plurality of femto access points (APs). Location estimate(s) for the mobile device drives selection of a target femto AP. Selection of the target AP results in acceptance of the HO request. The mobile device also can request macro-to-femto (MTF) handover. HO neighbor list(s) is generated by decoding a network-issued identifier for each femto APs in a set of femtocells, and selectively ranking each femto AP based at least on channel quality; access privileges of the mobile device to each of the identified femto APs determines selectivity. Validation of mobile device's access right(s) drives acceptance of the MTF HO request to a top ranked femto AP.

Abstract: Systems and methods for reducing overhead in a communication system are disclosed. Different frame types are aggregated into an enhanced aggregated frame in response to a determination that the different frames are suitable for transmission within a single reservation period. In an embodiment, at least two frames of different types are identified, the suitability of an aggregated frame comprising at least a portion of each of the at least two frames for transmission during a first time duration is determined, and if suitable the aggregated frame is formatted for transmission by a transceiver. If unsuitable for transmission in the first time duration, a second time duration longer than the first time duration in which the aggregated frame is suitable for transmission is defined, and the aggregated frame is formatted for transmission by the transceiver.

Abstract: A method for handoff between cells in a communication system includes the network sends a cell individual offset preset for a cell in the active set relative to each of its neighboring cells respectively to a terminal; after measuring the cell in the active set and its neighboring cells, the terminal evaluates the measurement in accordance with the measurement result and the cell individual offset for the cell in the active set relative to its each neighboring cell; the terminal then submits a measurement report to the network in accordance with the measurement evaluation result; the network instructs the terminal to perform a handoff between cells in accordance with the measurement report.

Abstract: Briefly, in accordance with one or more embodiments, a midamble for a downlink subframe is generated by rotating an order of midamble tones per antenna between two or more subbands. A Golay sequence may be utilized in the modulation of one or more subcarriers of the midamble via a reuse-3 arrangement. Alternatively, a reuse-1 arrangement may be applied to the midamble.

Abstract: A radio communication system including a system computer connected to a radio communication device including a radio communication antenna and an audio management system via a data bus. The audio management system is connected to a user communication device. The system computer is arranged to switch between a data communication service and a voice communication service upon receiving a signal from the radio communication device indicating that a carrier on a predetermined fixed frequency has been detected or has ceased to be detected by the radio communication device, or from the audio management system indicating that a request for a predetermined fixed frequency voice communication service has been detected or has ceased to be detected by the audio management system.

Abstract: Methods and apparatus related to the communication of traffic in peer to peer communications are described. A peer to peer communications system includes traffic slots, and for a pair of devices having a connection a first transmission request resource and a second transmission request resource are associated with a traffic transmission interval of the traffic slot, the first request resource preceding the second request resource. The first request resource is used for the first device to communicate a request to transmit traffic to the second device. The second request resource is used to communicate a request from the second device to transmit traffic to the first device. One protocol calls for a second resource request to override a first resource request. In another protocol the second resource is used to communicate additional information corresponding to a first resource request, when a request is communicated in the first resource.

Abstract: A master node (12) sends an identification signal for designating a communication channel in an identification signal time slot. When the own node matches the node in which the communication channel designated by the identification signal sent from the master node (12) is set in the identification signal time slot, the master node (12) and slave nodes (131 to 13n) each perform data transmission via the communication channel, based on the set contents of the communication channel, in the data transmission time slot corresponding to the identification signal time slot in which the identification signal has been sent.

Abstract: There is provided a method for transmitting voice packets for VoIP service using semi-persistent scheduling that previously allocates radio resources and performs uplink transmission using the previously allocated radio resources when additional radio resource allocation is not allocated. The method includes allocating radio resources used for talkspurt and radio resources used for silent period, detecting transition from the talkspurt to the silent period or transition from the silent period to the talkspurt, and transmitting a transition indicator that indicates the transition from the talkspurt to the silent period or transition from the silent period to the talkspurt.

Abstract: A wireless local area network (WLAN) includes at least one hybrid coordinator (HC) and at least one Quality of Service Station (QSTA). The HC transmits a schedule frame element (SEF). The WLAN also includes a clocking mechanism that sets a substantially absolute start time of a service interval. A method of synchronizing the HC and the QSTA includes transmitting a schedule element frame (SEF), and setting a substantially absolute start-time of a service interval, and a first transmitted frame element.

Abstract: Systems and methods are disclosed by which base stations with overlapping service areas allocate frames within superframes of a channel in a cognitive radio communication network. The frames are assigned for sole use by a base station on a frame-by-frame basis using a Frame-Based, On-Demand Spectrum Contention process. The process resolves contentions for use of frames using equally probable random numbers. The results of the process are transmitted and received between base stations using vector messages. Applications of the methods and systems include Wireless Regional Area Networks (WRANs), including those using the standards of IEEE 802.22.

Abstract: Mechanism to mitigate signal interference in ultra wide band (UWB) networks based on spatial reuse of the signal spectrum. Efficient media access control (MAC) in wireless networks is challenging because wireless devices may be affected by signal interference during spatial multiplexing. Wireless ad-hop (multi-hop) networks exploit the limited system bandwidth available via spatial reuse to enhance aggregate throughput. Spatial reuse allows concurrent data exchanges, resulting in higher throughputs.

Abstract: Dynamic time-spectrum block allocation for cognitive radio networks is described. In one implementation, without need for a central controller, peer wireless nodes collaboratively sense local utilization of a communication spectrum and collaboratively share white spaces for communication links between the nodes. Sharing local views of the spectrum utilization with each other allows the nodes to dynamically allocate non-overlapping time-frequency blocks to the communication links between the nodes for efficiently utilizing the white spaces. The blocks are sized to optimally pack the available white spaces.

Abstract: A communication system includes communication protocols that allow a single network or multiple neighboring networks to increase resource sharing and reduce mutual interference and increase their overall throughput. Various protocols apply to homogenous networks in which all power line communication (PLC) devices of multiple networks are interoperable with respect to full power line communication in a common PHY and to heterogeneous networks having non-interoperable PLC networks which do not employ a common PHY. As to heterogeneous networks, a protocol herein enables coexistence via a special signaling scheme. In homogeneous networks, all nodes can communicate with each other using a common PHY, so that information about one PLC network can be transferred to another PLC network. In heterogeneous networks, not all PLC networks can exchange information using their own native PHY.

Abstract: The illustrative embodiments described herein are directed to a method and apparatus for managing frequencies used by devices. In one embodiment, the process detects a set of frequencies from a set of devices to form a set of assigned frequencies. The process may also detect a first frequency used by a first device. The process may determine whether the first frequency interferes with the set of assigned frequencies. The process may also identify an unassigned frequency for use by the first device in response to determining whether the first frequency interferes with the set of assigned frequencies.

Abstract: Methods for multi-user detection in a CDMA-based channel for use in a base station receiver are provided. Signals, each including a CDMA code, are received. Correlation operations are performed on CDMA codes of received signals respectively to obtain corresponding first correlation values. CDMA codes are divided into first and second code groups according to a threshold and corresponding first correlation values. An interference cancellation procedure is performed on received signals to remove signals corresponding to first code group therefrom and to obtain a removed signal. Correlation operations are performed on CDMA codes of removed signal to obtain corresponding second correlation values. Each first correlation value is subtracted from a corresponding second correlation value and compared with a threshold to generate a comparison result.

Abstract: A system and method for managing a communication link between a consumer electronic device adapted for two-way, wireless communications with at least one peripheral. The communication link is managed using a controller that is associated with the consumer electronic device that functions to assign communication slots to the peripheral to facilitate communications between the peripheral and the consumer electronic device.

Abstract: The present specification describes techniques for packet exchange arbitration. In some embodiments, a request is maintained to an arbiter at least until a packet exchange has been communicated and/or at least until a time-sensitive packet is communicated. In some other embodiments, a grant of a request is delayed at least until the communication of an isochronous packet.

Abstract: An uplink scheduling method using one bit per user feedback includes: receiving one-bit feedback of the user's channel condition from a plurality of users, the one-bit feedback of the user's channel condition corresponds to a value of the cumulative distribution function of the user's instantaneous achievable rate; selecting a user from the users whose channel condition is equal to or greater than a predetermined threshold; and transmitting data at an instantaneous achievable rate of the selected user.

Abstract: Parameters for the propagation channels between each mobile terminal (14, 14A, 14B) and several fixed transceivers (13) are measured and a report message transmitted to a radio network controller (12), indicating at least one part of the measured parameters. The radio network controller processes the report messages. The parameters measured for each fixed transceiver are a propagation profile, including at least one propagation path associated with a reception energy and the parameters given in the report messages for at least one transceiver, comprise data on the energetic distribution in the propagation profile, taken into account by the radio network controller in processing.

Abstract: An apparatus and a method for transmitting and receiving an Automatic Repeat reQuest (ARQ) feedback message in a wireless communication system are provided. A method for receiving an ARQ feedback message at a transmitting unit in a wireless communication system includes allocating a fixed-size resource for transmitting an ARQ feedback message, to a receiving unit, the resource being an unsolicited bandwidth, and receiving an ARQ feedback message or a resource request message from the receiving unit over the fixed-size resource allocated.

Abstract: A base station communicating using multiple antennas includes a direction-of-arrival (DOA) estimation unit configured to estimate a direction of arrival based on a signal from a mobile station and to output direction-of-arrival information regarding the estimated direction of arrival; a DOA information multiplexing unit configured to multiplex the direction-of-arrival information from the direction-of-arrival estimation unit with a shared data channel to be transmitted to the mobile station; and an antenna weight multiplying unit configured to multiply a signal to be transmitted to the mobile station and including the shared data channel multiplexed with the direction-of-arrival information by antenna weights obtained based on the direction-of-arrival information from the direction-of-arrival estimation unit.

Abstract: Techniques in a mobile equipment (ME) for use in performing an initialization procedure with a subscriber identity module (SIM) having a SIM Application Toolkit are described. The ME sends to the SIM a version of a terminal profile which indicates facilities of the SIM Application Toolkit that are supported by the ME. When the ME detects an error in response to sending the version of the terminal profile, the ME sends to the SIM a previous version of the terminal profile which indicates facilities of the SIM Application Toolkit that are supported by the ME. When the ME fails to detect the error in response to sending the version of the terminal profile, the ME completes the initialization procedure and performs steady-state processing using the SIM.

Abstract: A self-coexistence window reservation protocol for a plurality of Wireless Regional Area Network (WRAN) cells operating in a WRAN over a plurality of channels includes a sequence of self-coexistence windows that uniquely identifies a transmission period for each WRAN cell. A self-coexistence window reservation protocol is included within the first packet of a Coexistence Beaconing Protocol period identifying when each WRAN cell associated with a particular channel will transmit. When not actively transmitting, a WRAN cells remains in a passive, receiving mode to accept data. As the transmissions of each WRAN cell operating on a particular channel are scheduled, contention for a transmission period is eliminated.

Abstract: According to an example embodiment, a wireless node may determine that a first reserved retransmission frame overlaps with a second reserved transmission frame and a second reserved retransmission frame and that the second reserved transmission frame overlaps with a first reserved transmission frame and the first reserved retransmission frame. The first reserved transmission frame and the first reserved retransmission frame may be reserved for wireless communication with a first master node, and the second reserved transmission frame and the second reserved retransmission frame are reserved for wireless communication with a second master node.

Abstract: In certain embodiments, a slave node in a packet network achieves time synchronization with a master node by implementing a packet-layer synchronization procedure, such as the IEEE1588 precision timing protocol (PTP), to set the slave's local time based on the master's time. The slave's local time is then maintained by implementing a physical-layer syntonization procedure, such as synchronous Ethernet, without relying on the packet-layer synchronization procedure. The packet-layer synchronization procedure may be selectively employed to adjust the slave's local time (if needed) after significant periods of time (e.g., substantially greater than one second). Both the packet-layer synchronization procedure and the physical-layer syntonization procedure are traceable to a common reference timescale (e.g., UTC). Depending on the implementation, the packet-layer synchronization procedure can be, but does not have to be, terminated when not being employed to adjust the slave's local time.

Abstract: A mobile communication method according to the present invention includes: step of establishing, upon receipt of a control channel establishment request for connection-type communication from a priority mobile station 300 in a femto-cell radio base station 201, a control channel for the priority mobile station by using a first reserved resource reserved for the priority mobile station 300 in the femto-cell radio base station 201; step of establishing a data channel for the priority mobile station 300; step of establishing a control channel for the non-priority mobile station 350 by using a non-reserved resource that is not reserved for any mobile station in the femto-cell radio base station 201; and step of establishing a data channel for the non-priority mobile station 350.

Abstract: Systems and methodologies are described that facilitate detecting cell interference and/or loading by analyzing control data transmitted between devices communicating in the cell. Control data resources can be transmitted related to communication received over data channels, and the control data resources can comprise quality indicators related to the data as well as resource identifiers that specify a resource over the data channel related to the data. Multiple control data resources can be transmitted per communication specifying a beginning and ending resource identifier of related data channel resources. If this control data is decodable at a wireless device, the associated resources corresponding to the resource identifiers can be marked as interfered and/or avoided in subsequent communication or resource allocation requests by the wireless device.

Abstract: A protocol for operation of wireless devices enables a wireless device to remotely and securely invoke a service on a target wireless device without requiring the user of the target wireless device to take any action and without requiring the target wireless device to use power unnecessarily. Mutual authentication is executed while the target wireless device remains in a low power discoverable mode. The discoverable mode includes discovery windows separated by inactive windows when the radio of the target wireless device is powered down.

Abstract: According to various embodiments of the invention, a MAC protocol is presented that provides for coordinated communication in a personal area network. Further embodiments of the invention provide methods for aligning communications among multiple networks to reduce interference between the networks. Still further embodiments provide methods for communication frame formatting that allow prioritized access between a network coordinator and an end device while allowing the remaining end devices to communicate with the coordinator. In particular embodiments, the MAC protocol may be implemented in a BAN or WPAN.

Abstract: When connecting a wireless LAN terminal to a specific wireless access point, an inquiry is made to a server about the specific wireless access point, via the wireless access point which the wireless LAN terminal is connecting to, and then connection information for connecting to the specific wireless access point is automatically received, whereby wireless communication are established between the wireless LAN terminal and the specific wireless access point. Furthermore, in a case where wireless LAN terminals which are permitted to connect are registered into each wireless access point, when a wireless access point receives a connection request from a wireless LAN terminal that is not permitted to connect, an inquiry is made to another wireless access point regarding whether there is a wireless access point which that wireless LAN terminal is permitted to connect to.