Apparatus, method and computer program product providing closed loop transmit antenna operation for systems using multiple antennas
First Claim
1. A method comprising:
- determining weights corresponding to each of a plurality of antennas used to transmit data signals to a receiver based at least in part on recommended antenna weights by the receiver, each weight suitable to modify a corresponding one of the data signals prior to transmission from a transmitter using a corresponding one of the antennas;
each weight capable of being different than the antenna weight recommended by the receiver; and
transmitting information to the receiver corresponding to at least one applied weight at the transmitter, the information allowing at least the at least one weight as actually applied to be determined.
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Accused Products
Abstract
A method includes determining weights corresponding to each of a plurality of antennas used to transmit data signals, each weight suitable to modify a corresponding one of the data signals prior to transmission using a corresponding one of the antennas; and transmitting information corresponding to at least one of the weights, the information allowing at least the at least one weight to be determined. Another method includes receiving information corresponding to at least one of a plurality of weights, the plurality of weights corresponding to a plurality of first antennas used to transmit first data signals, where each weight was used to modify a corresponding one of the first data signals prior to transmission using a corresponding one of the first antennas; using the received information, determining the plurality of weights corresponding to the plurality of first antennas; and using at least the plurality of weights; and decoding second data signals received using a plurality of second antennas to create at least one output signal.
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Citations
37 Claims
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1. A method comprising:
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determining weights corresponding to each of a plurality of antennas used to transmit data signals to a receiver based at least in part on recommended antenna weights by the receiver, each weight suitable to modify a corresponding one of the data signals prior to transmission from a transmitter using a corresponding one of the antennas;
each weight capable of being different than the antenna weight recommended by the receiver; andtransmitting information to the receiver corresponding to at least one applied weight at the transmitter, the information allowing at least the at least one weight as actually applied to be determined. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An apparatus comprising:
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a transceiver configured to be coupled to a plurality of antennas used to transmit data signals; one or more memories comprising program code; and one or more data processors coupled to the one or more memories and to the transceiver, the one or more data processors configured when the program code is executed to perform the following operations; determining weights corresponding to each of the plurality of antennas based at least in part on recommended antenna weights, each weight suitable to modify a corresponding one of the data signals prior to transmission using a corresponding one of the antennas;
each weight capable of being different than the antenna weight recommended by the receiver; andcausing the transceiver to transmit information corresponding to at least one applied weight at the transceiver, the information allowing at least the at least one weight as actually applied to be determined. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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19. An information bearing medium tangibly embodying a program of machine-readable instructions executable by at least one data processor to perform operations comprising:
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determining weights corresponding to each of a plurality of antennas used to transmit data signals based at least in part on recommended antenna weights by a receiver, each weight suitable to modify a corresponding one of the data signals prior to transmission using a corresponding one of the antennas;
each weight capable of being different than the antenna weight recommended by the receiver; andcausing information to be transmitted corresponding to at least one applied weight, the information allowing at least the at least one weight as actually applied to be determined.
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20. A method comprising:
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transmitting feedback information for recommended antenna weights by a receiver; receiving information corresponding to at least one of a plurality of applied weights used at a transmitter, the plurality of applied weights corresponding to a plurality of first antennas used to transmit first data signals, where each weight was used to modify a corresponding one of the first data signals prior to transmission using a corresponding one of the first antennas; using the received information, determining the plurality of weights corresponding to the plurality of first antennas; and using at least the plurality of weights, decoding second data signals received using a plurality of second antennas to create at least one output signal. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27)
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28. An apparatus comprising:
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a transceiver configured to be coupled to a plurality of first antennas used to receive first data signals, the transceiver configured to transmit feedback information for recommended antenna weights, the transceiver configured to receive information corresponding to at least one of a plurality of applied weights at a transmitter, the plurality of weights corresponding to a plurality of second antennas used to transmit second data signals, where each weight was used to modify a corresponding one of the second data signals prior to transmission using a corresponding one of the second antennas; one or more memories comprising program code; and one or more data processors coupled to the one or more memories and to the transceiver, the one or more data processors configured when the program code is executed to perform the following operations; using the received information, determining the plurality of weights corresponding to the plurality of second antennas; and using at least the plurality of weights, decoding the first data signals to create at least one output signal. - View Dependent Claims (29, 30, 31, 32, 33, 34, 35, 36)
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37. An information bearing medium tangibly embodying a program of machine-readable instructions executable by at least one data processor to perform operations comprising:
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transmitting feedback information for recommended antenna weights by a receiver; causing information to be received, the information corresponding to at least one of a plurality of applied weights used at a transmitter, the plurality of weights corresponding to a plurality of first antennas used to transmit first data signals, where each weight was used to modify a corresponding one of the first data signals prior to transmission using a corresponding one of the first antennas; and using the received information, determining the plurality of weights corresponding to the plurality of first antennas; and using at least the plurality of weights, decoding second data signals received using a plurality of second antennas to create at least one output signal.
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Specification