Abstract: Certain embodiments of the present disclosure provide a method for supporting multicast and broadcast services (MBS) with multiple-input multiple-output (MIMO) capabilities. This can be achieved by adding specific MIMO information into existing MBS-MAP messages while providing backward compatibility.

Abstract: A multi-port Serdes transceiver includes multiple parallel ports and serial ports, and includes the flexibility to connect any of the parallel ports to another parallel port or to a serial port, or both. Furthermore, the transceiver can connect any of the serial ports to another serial port or to a parallel port. The transceiver further includes a switch, a logic core, and a bus. The switch is selectively coupled to at least a first port and a second port. The switch activates the first port and deactivates the second port based on satisfaction of a condition associated with the first port. The logic core operates the serial and parallel ports, and the bus connects the ports. The bus can be described as a “ring” structure (or donut “structure”) around the logic core, and is configured between the logic core and the ports. The ring structure provides efficient communication between the logic core and the ports.

Abstract: A method and system for wireless communication in an asymmetric antenna system (AAS) communication system is provided. A wireless station performs carrier sensing by sensing a wireless communication channel for ongoing communications in one or more directions. Upon detecting that the wireless communication channel is idle, the station transmits a frame preamble on the channel to a receiving wireless station in more than one transmit direction, and transmits a frame payload on the channel to the receiving wireless station in one transmit direction.

Abstract: The invention provides a method and apparatus for network congestion management. The method includes inserting a probe frame into data traffic in the network from a first endpoint in the network, reflecting the probe frame from a second endpoint in the network back to the first endpoint, receiving the reflected probe frame at the first endpoint via the network, determining a round-trip delay based on flow of the probe frame through the network, and throttling network traffic according to the determined delay to manage network traffic congestion.

Abstract: Various embodiments are described to enable improved inter-network/inter-technology handover of mobile devices. A network device (131, 132) collects dynamic information corresponding to mobile devices (101, 102), such as wireless measurement information at the device's location, and/or information corresponding to wireless network nodes (121-124), such loading levels/loading distributions. The network device then sends some or all of the dynamic information collected and/or statistical information generated from the dynamic information collected to a neighboring network information server (150) for access by other communication networks. By maintaining dynamic and/or statistical information in a neighboring network information server, such information can be made available to all the communication networks in a given region. One potential benefit to making this information available is improved inter-network handoff decision-making.

Abstract: A communication system in which an access point and one or more devices communicating through the access point adaptively apply Orthogonal Frequency Division Multiple Access (OFDMA). The access point may assign orthogonal subcarriers to devices as in conventional OFDMA, but the access point senses activity on the subcarriers and selects subcarriers without activity for assignment. In an alternative approach, a device that is configured for OFDMA communication may receive a channel assignment from a device that does not support OFDMA. The OFDMA-capable device may use only a portion of the subcarriers in the assigned channel, which may be communicated to the non-OFDMA device. During the non-OFDMA device may then ignore unused subcarriers in error detection and correction to avoid incorrectly classifying communications as erroneous.

Abstract: A frequency multiplex transmission device configured to transmit and receive a frequency multiplex signal having a plurality of subcarriers, the frequency multiplex transmission device comprising: a transmitter configured to transmit the frequency multiplex signal by using a plurality of modulation methods; a receiver configured to receive a signal state to the frequency multiplex signal from an opposite station; and a controller configured to obtain a signal state to each of the subcarriers on the basis of the received signal state and a frequency characteristic of an antenna included in the transmitter, the controller being configured to control transmission on the basis of an obtained result.

Abstract: At a plurality of first devices, wireless transmissions are received at different locations in a region where multiple target devices may be emitting. Identifier data associated with reception of emissions from target devices at multiple first devices is generated. Similar identifier data associated with received emissions at multiple first devices are grouped together into a cluster record that potentially represents the same target device detected by multiple first devices. Data is stored that represents a plurality of cluster records from identifier data associated with received emissions made over time by multiple first devices. The cluster records are analyzed over time to correlate detections of target devices across multiple first devices.

Abstract: A network tap monitors network information flow over a particular connection. By duplicating the signal and diverting a copy, the information flow can be analyzed, both in real time and without interference through the monitoring process. When the power to the tap is either turned on or off, however, the change in impedance in the tap's circuit can create an interference spike in the connection that interrupts the information flow. By reducing or eliminating the impedance change in the tap circuitry, such disruptive interruptions can be eliminated.

Abstract: Systems and methods for improving throughput in point-to-point wireless communication links are provided. In one particular implementation, a media access control (MAC) layer of the IEEE 802.11 standard is enhanced for use in point-to-point links to take advantage of the limited number of nodes participating in the link. In one embodiment, a master/slave type protocol provides contention free operation between two wireless nodes. Multiple priority levels and voice traffic may be accommodated with guaranteed Quality of Service.

Abstract: A receiver for receiving an orthogonal frequency division multiplexed (OFDM) digital video broadcast (DVB) signal including OFDM symbol sets including data symbols and pilot symbols transmitted using a plurality of sub-carriers, the OFDM DVB signal being transmitted toward the receiver via a transmission channel, the receiver including an input module configured to receive the OFDM DVB signal via the transmission channel, and a channel estimation module coupled to the input module and configured to calculate channel estimates of the transmission channel by performing Fourier transforms on the OFDM symbol sets to produce transformed symbol sets in the frequency domain and by performing minimum mean square error (MMSE) equalization on the transformed symbol sets using a sub-set of the pilot symbols in the OFDM DVB signal.

Abstract: Interference cognitive devices are described. An interference cognitive device can be collocated with a transmitter of an interference cognitive transmitter (ICT), as receive chains or portions thereof at the ICT. An interference cognitive device can also be remote with respect to the transmitter, which operates in an interference cognitive network and receives data directly or indirectly from the interference cognitive device. The ICT uses the data to mitigate interference while continuing to operate in accordance with a performance metric.

Abstract: A system and method are provided for controlling Quality of Service (QoS), content quality, or both QoS and content quality in a content sharing network based on user relationships. More specifically, QoS, content quality, or both QoS and content quality may be controlled based on a relationship of a user of a network node requesting content and either a user of a network node hosting the requested content or an owner of the requested content, a relationship between the user of the network node requesting the content and the content, or any combination thereof.

Abstract: A system and method for transmitting information over a plurality of communication links. In one embodiment, the invention includes a method for transmitting information over a plurality of physical communication links. The method includes bonding the plurality of physical communication links to generate a logical link comprising the plurality of physical communication links. Control means are provided for controlling the logical link. The information is transmitted over the plurality of physical communication links belonging to the logical link under the control of the control means.

Abstract: In wireless system, a group of Base station (BTSs) with smaller footprints have the capability to communicate with each other as well as with the BTSs with relatively larger footprints via wireless air-interfaces. One of such example is coordinated cell systems. A coordinated cell system comprises a group of coordinated cell base stations that have the capability to communicate with each other as well as with relevant macro cell or Pico cell base stations via wireless air-interfaces. Each coordinated cell BTS consists of an over the air control unit in addition to the conventional coordinated cell BTS system. A set of protocols in the form of messages and database are also defined to enable the networking capability. This enables enhancement in performing a variety of tasks by coordinated cell systems, including interference management and coordination, registration and authentication, quality of service coordination, installation and maintenance, location services, etc.

Abstract: A method for extending a coverage of a base station in a wireless communication network is disclosed, characterized in that a relay station transfers control information and communication related information between the base station and the mobile station according to an indication of the base station.

Abstract: A method and system for measuring latency is provided. A monitor node is used to measure latency in a computer network or in a computing device by time stamping signal messages sent from nodes in the computer network and/or tasks in a particular node or device. The time stamps are generated using a system clock of the monitor node to reduce any discrepancies in timing. In addition, the monitor node may compensate for latencies between the monitor node and each of the one or more nodes or devices across which latency is to be measured. Signal messages may include a data message ID and/or a node ID identifying the message that is being tracked and for which latency is being measured. Latency may further be measured across multiple tasks being performed in the same or different nodes or devices by transmitting signal messages for each of the multiple tasks.

Abstract: A method for transmitting channel information and a mobile communication terminal are disclosed. The method for transmitting channel information includes requesting, by a mobile station (MS) through a random access channel (RACH), a base station (BS) to allocate a resource for transmitting channel information, if it is determined that transmission of a channel status of a downlink channel is necessary as a result of monitoring the channel status, and transmitting, from the MS through the RACH to the BS, the channel information which is updated according to the channel status if the resource allocation is completed. Therefore an existing control channel can be efficiently used, without adding a new control channel for channel quality identifier (CQI) transmission by a mobile station or modifying the configuration of a transmitting stage. Further, signal interference for the existing channels can be prevented when generating a scheduling request.

Abstract: A method is provided of identifying which one of a plurality of femtocell base stations neighboring a first femtocell base station is to be the target for handover of a call connection with a user terminal from the first base station. The neighbor femtocell base stations use the same primary scrambling code as each other. The femtocell base stations use code-division multiple access, CDMA. Each of the neighbor femtocell base stations transmits a respective broadcast signal that include timing information such that each neighbor femtocell base station transmits a broadcast signal having different timing information to that of the other neighbor femtocell base stations. The user terminal receives broadcast signals, determines the timing information of at least one of the received broadcast signals and reports the timing information to the first femtocell base station. The first femtocell base station identifies the target femtocell base station for handover from the timing information.

Abstract: In a radio system performing scheduled transmission to a plurality of receiving stations from a transmitting station having a plurality of antennas, a transmitting station obtains reception quality information estimated from feedback information obtained from the plurality of receiving stations, determines whether a transmission system performs beamforming, which transmits data of an identical stream by weighting each of the plurality of antennas based on the obtained reception quality information, or performs MIMO multiplexing, which transmits data of different streams respectively from the plurality of antennas, and transmits information to identify the determined transmission system by adding to a scheduler management channel.