Abstract: Disclosed herein is an iterative process for calibrating an AGC in a wireless system, wherein the iterative process comprises transmitting a calibration signal, receiving the calibration signal, decoding the calibration signal to produce a measurement, storing the measurement and changing an AGC gain setting.

Abstract: In at least some embodiments, a communication device includes a plurality of network technology subsystems, each subsystem associated with a different network technology. The communication device also includes a controller coupled to the plurality of network technology subsystems. The controller enables coexistence of the different network technologies in accordance with at least one monitored quality of service (QoS) parameter.

Abstract: Embodiments provide systems and methods for traffic flow based rate adaptation in packet-based networks. In some embodiments, a communications system comprises at least one receiver and a transmitter able to control transmission to the at least one receiver of a packet among a plurality of traffic flows, each traffic flow having its own transmission rate adaptation mechanism. In other embodiments, a communications method comprises determining, by a transmitter able to control transmission of a packet among a plurality of traffic flows each having its own transmission rate adaptation mechanism, a parameter value, and, depending upon the parameter value, adapting the transmission rate of at least one traffic flow. In further embodiments, a communications device comprises a transmitter able to control transmission of a packet among a plurality of traffic flows, each traffic flow having its own transmission rate adaptation mechanism.

Abstract: In at least some embodiments, a communication device includes a plurality of network technology subsystems, each subsystem associated with a different network technology. The communication device also includes a controller coupled to the plurality of network technology subsystems. The controller enables coexistence of the different network technologies in accordance with at least one monitored quality of service (QoS) parameter.

Abstract: Disclosed herein is an iterative process for calibrating an AGC in a wireless system, wherein the iterative process includes transmitting a calibration signal, receiving the calibration signal, decoding the calibration signal to produce a measurement, storing the measurement and changing an AGC gain setting.

Abstract: A transmit channel (gt1, h, gr2) through which a first wireless communication transceiver is to transmit to a second wireless communication transceiver can be estimated using information indicative of a relationship between the transmit channel and a receive channel (gt2, h, gr1) through which the first wireless communication transceiver receives communications from the second wireless communication transceiver. The relationship information (35) is combined (37) with further information (31) to produce an estimate of the transmit channel.

Abstract: A mobile telephone system and method having a base station for receiving data bursts during consecutive frames, each frame of predetermined time duration and divided into a plurality of slots of predetermined time duration. The base station has an antenna, base station electronics and preprocessing circuitry coupled to the base station antenna and the base station electronics. Delay circuitry is coupled to the base station preprocessing circuitry and base station electronics to provide the complement of a total time delay to the data bursts through the preprocessing circuitry and the delay circuitry equal to an integral number of the predetermined time duration of a frame. The time delay of the preprocessing circuitry can be fixed or variable, in which case the time delay of the delay circuitry is either fixed or variable, respectively.

Abstract: A method of frequency offset estimation and correction for adaptive antennas comprises receiving in a processor samples of a data set having a training data sample sequence. A batch least squares weight solution is computed for the training data sample sequence to obtain a least square error for each sample. Each error sample is rotated by multiplying by the conjugate of a sample of the reference training sequence and each rotated error sample is numbered (in the order received). A straight line is fit to the imaginary part of the rotated error sample (as a function of sample number) to obtain a frequency offset estimate. Each sample in a time slot of the samples of a dataset is multiplied by a complex exponential function of the frequency offset estimate.

Abstract: A system for wireless communication between a base station 30 and one or more remote stations 32 and 34 wherein a desired signal has associated therewith an identifier tone (a SAT in the vernacular of the AMPS system) and wherein interfering signals may have associated therewith identifier tones at different frequencies. A superresolution technique is used in the system to process the received data and to determine the relative magnitudes of any identifier tones which may be present in the received data. In the disclosed embodiment, the superresolution technique utilized is a least square error process. The resulting estimates are used by the system to facilitate the communication function.

Abstract: A system for wireless communication between a base station 30 and one or more remote stations 32 and 34 wherein a desired signal has associated therewith an identifier tone (a SAT in the vernacular of the AMPS system) and wherein interfering signals may have associated therewith identifier tones at different frequencies. A superresolution technique is used in the system to process the received data and to determine the relative magnitudes of any identifier tones which may be present in the received data. In the disclosed embodiment, the superresolution technique utilized is a least square error process. The resulting estimates are used by the system to facilitate the communication function.

Abstract: A system for wireless communication between a base station 30 and one or more remote stations 32 and 34 wherein the beam pattern of the receiving antenna 50-52 can be adaptively formed to track a desired signal. A series of weights is applied, one to each output of the elements of the receiving antenna and the weighted output summed to form the antenna output. The weights are adaptively modified so as to focus the beam in the direction of one of many signals which may be present in the data received by the antenna. A least-square-error process is used to identify if the signal beamed on is the desired signal. If such is not the case, the weights are modified to null out the earlier signal and to focus the pattern on another signal.

Abstract: An antenna system and method comprising an antenna having 2+N antenna elements, where N is zero or an odd integer, an algorithm controlled switching circuit having a separate switch associated with each of the elements and a switch control selectively causing the switching circuit to couple an adjacent pair of the antenna elements to their associated switches while maintaining the remaining switches uncoupled from their associated antenna elements. The algorithm controlled switch control includes circuitry for successively coupling each adjacent antenna element pair of the antenna elements to their associated switches, determining a predetermined parameter for each of the antenna element pair and then causing the antenna system to operate with only one of the antenna pairs responsive to determination of the predetermined parameter.