Abstract: A subscriber unit, used for communicating in voiced communications at a first data rate and communicating at a second data rate for other data, suppresses a selected communication during communication rate modification. A determination is made as to whether the transmission requires a change in data rate, and a switching circuit responds by engaging a different communication channel. Blocking circuitry blocks transmissions until the different data rate is established. This provides an optimum data rate, while preserving the integrity of the data transmitted.

Abstract: Provided is a polarization division multiplexed optical OFDM transmitter. The polarization division multiplexed optical OFDM transmitter includes a data demultiplexer, a training symbol generation unit and an optical up-converter and polarization division multiplexing unit. The data demultiplexer divides a transmission signal into a plurality of groups. The training symbol generation unit allocates a plurality of training symbols for each OFDM data which is included in the respective multiplexed groups, and allocates repetitive data in a time domain for the respective training symbols for data of 0 to periodically appear for the respective training symbols in a frequency domain. The optical up-converter and polarization division multiplexing unit performs optical frequency band conversion and polarization division multiplexing on an output of the training symbol generation unit to output a polarization division multiplexed optical OFDM signal corresponding to a plurality of polarization components.

Abstract: An edge node of a communication network and method to classify incoming Ethernet traffic based on predetermined criteria. An ingress switch is configured to receive an incoming Ethernet frame. A frame classifier is configured to identify flows and to correlate a flow to a corresponding bandwidth profile and corresponding forwarding treatments defined for the flow.

Abstract: A wireless communication system includes an apparatus capable of detecting whether a cell coverage is downscaled. The wireless communication system receives information used for communication between an evolved NodeB (eNodeB) and a User Equipment (UE) from the eNodeB. The UE performs at least one of pilot signal power checking for checking if a pilot signal power falls within a first reference range, DownLink (DL) Signal-to-Interference plus Noise Ratio (SINR) checking for checking if an SINR of a DL traffic channel falls within a second reference range, and UpLink (UL) SINR checking for checking if an SINR of an UL traffic channel falls within a third reference range using the received information. The UE also detects whether a cell coverage of a cell to which the eNodeB and the UE belongs is downscaled based on a checking result.

Abstract: The present invention relates to methods and apparatus for performing reverse auto-negotiation, in which one network device establishes a link with another network device at a preferred operating mode (e.g., the lowest speed) common to both devices without linking twice. The physical layer of a local network device (local PHY) may stall the normal auto-negotiation process with the link partner, while receiving the abilities of the link partner. The local PHY may then transmit a signal having only the preferred common operating mode (e.g., the lowest speed) encoded within. The link partner may then conclude that the local PHY is only capable of the preferred common operating mode (e.g., the lowest speed) and a link between the two devices may be established at that common mode.

Abstract: In a communications system including a base station capable of altering a frequency bandwidth which is used for transmitting broadcast data for providing point-to-multipoint broadcasting communications service and which is used for transmitting individual communications data for providing point-to-point individual communications service, and a mobile terminal capable of altering a receivable bandwidth which is used for receiving at least the broadcast data and the individual communications data transmitted from the base station, decision processing of making a decision as to whether the mobile terminal can receive reception-desired content it desires to receive among contents provided by the broadcasting communications service is executed in accordance with a frequency occupying bandwidth used for transmitting the reception-desired content. Thus, the mobile terminal becomes able to make a decision as to whether it can receive particular E-MBMS content considering its own UE position.

Abstract: A platform for seamlessly hosts a plurality of disparate types of packet processing applications. One or more applications are loaded onto a service card on the platform. A programmable path structure is included that maps a logical path for processing of the packets through one or more of the plurality of service cards according to characteristics of the packets. Multiple path structures may be programmed into the platform to offer different service paths for different types of packets.

Abstract: A call set-up system sets up a call, which may be a voice call, between terminals through a plurality of packet switched networks using call agents. The networks are interconnected by network address translation (NAT) devices, and the messages to successive call agents include media addresses in the associated networks tor the actual data packets ot the call when it has been set up. The call set-up message includes the media address sent to at least some preceding call agents enabling NAT resources to be saved. The call agents can be incorporated into NAT devices, and the media addresses can be encrypted or in the form of a reference.

Abstract: A multi-carrier signal transmission apparatus transmits a transmission stream including at least preamble information necessary for synchronizing a transmission signal and data information as a multi-carrier signal. A modulator generates a transmission symbol stream by modulating an arrangement of the preamble information and the data information. A symbol expanding portion expands the transmission symbol stream on a frequency axis by generating a complex conjugate value of at least one part of the preamble information symmetrically on the frequency axis.

Abstract: Method and apparatus for enabling a wireless terminal to communicate the dual-mode capabilities and reporting the interworking capabilities of the two networks with which the wireless terminal have the added capability of obtaining services from either one of the interworking networks.

Abstract: Techniques to dynamically manage wireless connections are described. For example, a mobile computing device may comprise a connection management module to dynamically select one of a plurality of switching technologies to initiate a connection with one or more target devices and automatically initiate the connection with the one or more target devices using the dynamically selected switching technology. Other embodiments are described and claimed.

Abstract: A method and an apparatus for providing communication over a white space channel without causing interference are disclosed. The method generates a first request to identify at least one available white space channel, and applies a spreading sequence to the first request to generate a second request. The method applies a modulation to the second request to generate a third request in the time domain, and transmits the third request via a wireless communication to at least one other user. Alternatively, the method receives a request wirelessly, wherein the request comprises a request for availability of at least one white space channel, and applies a demodulation on the request to generate a demodulated request. The method applies a spreading sequence on the demodulated request to generate a de-spread request, and processes the de-spread request by determining availability of at least one white space channel.

Abstract: A wireless communication device includes a transceiver coupled to a controller configured to cause the device to receive a downlink transmission including a reference signal from a base station while camped on the base station in idle mode, to estimate a quality metric of a hypothetical paging channel reception based on the reference signal, and to determine perform reselection evaluation of a neighboring base stations based on the estimated quality metric.

Abstract: A method of multicast route computation in a link state protocol controlled network. A spanning tree is computed from a first node to every other node in the network using a known spanning tree protocol. The network is then divided into two or more partitions, each partition encompassing an immediate neighbor node of the first node and any nodes of the network subtending the neighbor node on the spanning tree. Two or more of the partitions are merged when a predetermined criterion is satisfied. Nodes within all of the partitions except a largest one of the partitions are then identified, and each identified node examined to identify node pairs for which a respective shortest path traverses the first node.

Abstract: Apparatus and method for recognizing Global System for Mobile communication (GSM) signals are provided. The solution comprises obtaining as an input a sampled signal; determining the 8th order moment for a group of samples of the input signal corresponding to the length of one or two frames of a GSM signal; determining peak to average power and peak to average power variance for the group of samples of the input signal corresponding to the length of one or two frames of a GSM signal; comparing the obtained 8th order moment to predetermined thresholds and the obtained peak to average power and peak to average power variance to predetermined thresholds; determining whether the input signal is a GSM-type signal on the basis of the comparisons.

Abstract: In a method for transmitting information in a wireless local area network (WLAN), a plurality of different data streams corresponding to a plurality of different devices are orthogonally multiplexed onto a single symbol stream without using channel state information corresponding to a plurality of channels between a transmitting device and the plurality of different devices. One or more transmit streams are generated using the single symbol stream.

Abstract: The physical position of an unknown node in a network is determined by sending a first sent WiFi signal from one of an unknown node and a first reference node having a known location, and repeating the sent WiFi signal in the other of the unknown node and first reference node with a first reply WiFi signal. A distance is derived between the unknown node and the first reference node from the time of flight of the first sent and first reply WiFi signals. A second WiFi signal is sent from one of the unknown node and a second fixed node having a known location, and repeating the sent second WiFi signal in the other of the unknown node and second reference node with a second reply WiFi signal, and A distance is derived between the unknown node and the second reference node from the time of flight of the second sent and second reply WiFi signals. A physical location of the unknown node is determined based on the derived distances between the unknown node and the first and second reference nodes.

Abstract: Disclosed are an apparatus for Channel State Information-Reference Signal (CSI-RS) allocation and a method for CSI-RS transmission using the same in a wireless communication system. A CSI-RS for each antenna port is allocated to REs or subcarriers on a basis of a symbol or symbol axis in a subframe or Resource Block (RB), and is allocated in such a manner that a distance between neighboring CSI-RS allocation REs or subcarriers may be 3 REs or subcarriers. Accordingly, in the range of following CSI-RS transmission overhead, CSI-RSs are allocated to a time-frequency resource domain in such a manner so as to have perfect orthogonality or quasi-orthogonality according to cells or cell groups. Then, the CSI-RSs, which have been allocated to the time-frequency resource domain, are transmitted.

Abstract: A UE and a method are described herein for optimizing a non-optimized handoff from a first access technology (e.g., E-TRAN, WiMAX, UMTS, WiFi, UMB and E-UTRAN) to a second access technology (e.g. 1×RTT, 1×EVDV, HRPD or eHRPD). In one embodiment, the “optimized” non-optimized handoff effectively decreases the mute time that is experienced by the UE during the handoff from the first access technology to the second access technology from around 628 ms to less than 500 ms which is a marked improvement.

Abstract: Methods and apparatus to a cross-layer approach to virtualized overlay on ad hoc networks are described. In one embodiment, a virtual address may be used to search for a (key,value) pair in a virtual overlay. Other embodiments are also described.