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AssigneeQUALCOMM Incorporated
InventorsRichard Chi, Jittra Jootar, Parvathanathan Subrahmanya
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Techniques for closed loop transmit diversity antenna verification are disclosed. In one aspect, a trellis decoder is used to determine the most likely transmitted phase in response to previously requested phase adjustments and observed transmitted symbols. In another aspect, maximum a posteriori (MAP) decoding is used. In yet another aspect, the identified likely transmitted phase is used for data demodulation. Various other aspects of the invention are also presented. These aspects have the benefit of decreasing the effect of phase discrepancies introduced by erroneous reception of phase adjustment information, resulting in improved error rates, and a corresponding increase in system capacity, data throughput, or both.
A mobile station adapted for communication with a base station transmitting from a plurality of antennas, the base station adjusting the phase of signals on one or more of the plurality of antennas in response to mobile-station originated phase adjustment requests, comprising:
A method of transmit diversity antenna verification, comprising:
A method of transmit diversity antenna verification, comprising:
An apparatus, operable with a base station using transmit diversity, comprising:
An apparatus, comprising:
Processor readable media operable to perform the following steps:
Processor readable media operable to perform the following steps:
A wireless communication system including a mobile station, operable with a base station transmitting from a plurality of antennas, the base station adjusting the phase of signals on one or more of the plurality of antennas in response to mobile-station originated phase adjustment requests, comprising:
Dependencies are inferred from the claim text.