Abstract: A small office/home office base transceiver station including an ultra-wideband transceiver that transmits pulses on directional antenna array elements and monitoring for reflections. Directions from which a large number of reflections are detected are presumed to correspond to the interior of the building within which the base transceiver station is located, while directions from which few or no reflections are detected are presumed to correspond to outside walls. Transmit power gain for directional antenna array elements used for communications are then set to reduce transmission of power in directions that might result in interference with adjacent base transceiver stations.

Abstract: A method for signal reception in a Multiple-Input-Multiple-Output (MIMO) communication system is provided. The method enhances the efficiency of signal reception in the MIMO system and simplifies the algorithms of signal reception and soft decoding metrics generation. In other words, soft decisions are generated according to correlations between metrics corresponding to least reliable bits based on MMSE linear estimation and noise variance estimation is provided to improve performance when an error is generated in channel matrix H estimation.

Abstract: A method for subcarrier quality estimation in a wireless network is disclosed. The method comprises analyzing characteristics of at least some of the subcarriers of a first signal, creating feedback data based on the analyzed characteristics, wherein the quantity of the feedback data is less than the quantity of all of a plurality of measured signal-to-interference and noise power ratio (SINR) values of each subcarrier of the first signal, and transmitting the feedback data.

Abstract: An apparatus and method for interference cancellation in wireless mobile stations operating concurrently in two or more wireless modes.

Abstract: In a multiple-input, multiple-output (MIMO) enabled mesh network, streams for transmitting data from a node to a destination node are controlled based on next hop latency and available stream capacity at neighboring, next hop nodes. Routing information maintained and dynamically updated at each node includes latency information associated with each next hop for transmission from the node to a given destination node and current available stream capacity for such next hop nodes. A controller at the node utilizes that information to select one or more next hop nodes to which the data is forwarded as well as to determine a number of streams that may be initiated with each selected next hop node.

Abstract: A system and method is disclosed for improving downlink performance of an adaptive antenna array in a vehicular environment. The system comprises a mobile station that has a first mobile antenna and a second mobile antenna. A spatial signature estimator associated with a base transceiver station obtains spatial signatures from signals from the first mobile antenna and from the second mobile antenna within an uplink interval. Correlation circuitry uses the spatial signatures to identify a least changing spatial signature to obtain an optimal downlink beamforming weight vector to be used in the transmission of a signal to the mobile station in the next downlink interval.

Abstract: A method of dynamically allocating sub-carriers for communication in an Orthogonal Frequency Division Multiplex network is provided. The method includes monitoring network conditions and allocating sub-carriers for the base station to a set of downlink sub-carriers or to a set of uplink sub-carriers based on the network conditions.

Abstract: The present disclosure relates generally to a system and method for use in a communications network. In one example, the method includes dividing a total available frequency band of a first node into a multiple subcarriers using orthogonal frequency division multiplexing (OFDM). A first portion of subcarriers is allocated to a first link coupling the first node with a second node and a second portion of the subcarriers is allocated to a second link coupling the first node to a third node.

Abstract: A mobile terminal comprising a local display for displaying multimedia data. The mobile terminal receives multimedia data via a first wireless interface and transmits the received multimedia data to an external display via a second wireless interface. The mobile terminal transmits the received multimedia data to the external display if the mobile terminal determines the quality of the external display is superior to the quality of the local display.

Abstract: A demodulator for demodulating S possible orthogonal modulation codes received serially as binary data, wherein each of the S possible orthogonal modulation codes comprises M binary bits representing an N-bit data symbol and wherein M=2N. The demodulator comprises Logic 00, Logic 01, Logic 10, and Logic 11 input detectors, each of which compares M/2 sequential pairs of the M binary bits of the orthogonal modulation codes to a respective one of a Logic 00 value, a Logic 01 value, a Logic 10 value, or a Logic 11 value and outputs a [+1,+1] signal if a match occurs and outputs a [?1,?1] signal if a match does not occur. An input decision circuit detects a [+1,+1] signal output by one of the input detectors after a comparison of a jth sequential pair of the M/2 sequential pairs of the M binary bits.

Abstract: A demodulator for demodulating S orthogonal modulation codes, each code comprising M binary bits representing an N-bit data symbol, where M=2N. The demodulator comprises a Logic 00 detector for comparing pairs of binary bits to 00 and outputting [+1,+1] if a match occurs or [?1,?1] otherwise; S accumulators; and a Logic 00 switch array comprising S switches, where a Kth switch couples an output of the Logic 00 detector to a first input of a Kth S accumulator. The demodulator also comprises a storage array for storing S code masks, each code mask comprising M/2 code mask bits and each M/2 code mask bit associated with a corresponding sequential pair of M binary bits; and control circuitry for synchronously applying the M/2 code mask bits in a Kth code mask as a control signal to the Kth switch in the Logic 00 switch array.

Abstract: A method and wireless system that is able to adapt forward channel signal parameters to the different channel characteristics in each deployment environment. For example, the base station may update the waveform parameters based upon the real-time channel measurement feedback as received from the subscriber stations.

Abstract: An apparatus is provided for reducing the peak-to-average power ratio (PAPR) of a multicarrier transmission system. The apparatus comprises a detector for receiving a plurality of symbols to be transmitted and determining a peak amplitude of the plurality of symbols and a controller for determining if the peak amplitude associated with the plurality of symbols exceeds a predetermined threshold. If the peak amplitude exceeds the predetermined threshold, the apparatus generates at least one correction carrier signal. The at least one correction carrier signal is combined with a plurality of modulated carrier signals associated with the plurality of symbols to thereby reduce a peak-to-average power ratio associated with the plurality of modulated carrier signals.

Abstract: A system and method of evaluating and enhancing diversity of an entity utilizes employee responses, entity self-assessment responses and relevant objective data to determine a rating indicative of a current level of diversity. The responses and data can be analyzed to determine steps to be taken to enhance the current level of diversity. Subsequent to the steps having been taken, another rating can be determined indicative of a most recent level of diversity. The most recent level of diversity can be compared with the prior level to evaluate progress from one level to another.

Abstract: A base station for use in a 1xEV-DV wireless network comprising: 1) a radio frequency (RF) transceiver for transmitting to mobile stations in voice traffic channels and in at least one packet data channel and 2) a power allocation controller for adjusting the total transmit power allocated to the voice traffic channels and the at least one packet data channel in response to changing conditions in the 1xEV-DV wireless network. The power allocation controller monitors and detects trends in the traffic channel transmit power requirements of the voice-user mobile stations and adjusts the total transmit power according to the detected trend.

Abstract: A transmitting apparatus is provided for a base station capable of communicating with a plurality of mobile stations in a wireless network. The transmitting apparatus includes a beamforming traffic path for use in beamforming transmission to one of the mobile stations, and a diversity traffic path for use in diversity transmission to the mobile station. A selector is coupled to the beamforming traffic path and the diversity traffic path for dynamically selecting which of the traffic paths is used for transmission to the mobile station.

Abstract: A repeater for re-transmitting signals between first and second wireless devices. The repeater comprises a first antenna array for receiving a forward channel signal transmitted from the first wireless device and a second antenna array for receiving a reverse channel signal transmitted from the second wireless device. The repeater also comprises a first transceiver chain for down-converting the received forward channel signal, processing the down-converted forward channel signal, and up-converting the processed forward channel signal to thereby produce an outgoing forward channel signal. The repeater also comprises a second transceiver chain for down-converting the received reverse channel signal, processing the down-converted reverse channel signal, and up-converting the processed reverse channel signal to thereby produce an outgoing reverse channel signal.

Abstract: A repeater for re-transmitting an incoming RF signal comprising: a first antenna array for receiving the incoming RF signal; a second antenna array for transmitting an outgoing RF signal; and a transceiver for down-converting the incoming RF signal to a down-converted signal, processing the down-converted signal, and up-converting the processed signal to produce the outgoing RF signal. The first antenna array is cross-polarized with respect to the second antenna array. The repeater also comprises an echo processor for attenuating in the down-converted signal an echo signal associated with the outgoing RF signal. The echo processor delays transmission of the outgoing RF signal in order to minimize the echo signal.

Abstract: A proxy mobile station for retransmitting reverse channel signals from a mobile station to a base station of a wireless network. The proxy mobile station comprises: 1) a controller for receiving reverse channel data to be transmitted to the base station and transmitting the reverse channel data using an assigned mobile station identifier associated with the mobile station; and 2) a radio frequency transceiver for up-converting the encoded reverse channel data for transmission to the base station. The assigned mobile station is modifiable and may be modified by an external control device.

Abstract: A mobile station for canceling interference caused by a dominant interferer signal in a 1xEV-DV wireless network. The mobile station comprises an RF down-converter for outputting a down-converted signal, r(n); a first PN demodulator for multiplying the down-converted r(n) signal by a first PN code sequence to produce a first demodulated output signal; W Walsh code demodulators that multiply the first demodulated output signal by a selected set of W Walsh codes to produce W raw user signals; W subtractors that subtract a selected estimated interference signal from one of the W raw user signals to produce W estimated user signals; and a detector that outputs a detected user signal for each of the W estimated user signals that exceeds a first threshold value. The mobile station further comprises an interference estimator that receives W detected user signals from the first detector and outputs W estimated interference signals to the W subtractors.