Data rate adaptation in multiple-in-multiple-out systems
First Claim
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1. A method comprising:
- receiving information wirelessly transmitted by a first wireless communication device using a first transmit mode;
determining one or more parameters associated with the information;
comparing the one or more parameters with one or more target parameters;
identifying a subset of modes based on the comparison, the identified subset of modes including two or more second transmit modes that are different from the first transmit mode; and
transmitting, by a second wireless communication device, the identified subset of modes to the first wireless communication device for use with a subsequent transmission.
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Abstract
A transmit data rate adaptation method in a multiple-in-multiple-out (MIMO) system with a first transceiver and a second transceiver. The first transceiver transmits signals to the second transceiver. The second transceiver analyzes channel quality of the received signals and uses link adaptation to generate a shortlist of transmit modes to send back to the first transceiver. The first transceiver cycles through the shortlist of transmit modes to find an optimum transmit mode.
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Citations
21 Claims
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1. A method comprising:
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receiving information wirelessly transmitted by a first wireless communication device using a first transmit mode; determining one or more parameters associated with the information; comparing the one or more parameters with one or more target parameters; identifying a subset of modes based on the comparison, the identified subset of modes including two or more second transmit modes that are different from the first transmit mode; and transmitting, by a second wireless communication device, the identified subset of modes to the first wireless communication device for use with a subsequent transmission. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A device comprising:
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an input to receive information transmitted using a first transmit mode; circuitry configured to; determine one or more parameters associated with the information, compare the one or more parameters with one or more target parameters, and identify a subset of modes based on the comparison, the identified subset of modes including two or more second transmit modes that are different from the first transmit mode; and an output to transmit the identified subset of modes to a wireless communication device from which the information is transmitted. - View Dependent Claims (15, 16, 17, 18, 19)
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20. A system comprising:
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a first wireless communication device to generate data to be transmitted using a first transmit mode; and a second wireless communication device to; receive the data from the first wireless communication device; determine channel quality statistics associated with the data; compare the channel quality statistics with one or more target channel parameters; identify a subset of modes based on the comparison, the identified subset of modes including two or more second transmit modes that are different from the first transmit mode; and transmit the identified subset of modes to the first wireless communication device that allows the first wireless communication device to; select one of the subset of modes, identify a data rate corresponding to the selected mode, and transmit information to the second wireless communication device using the identified data rate. - View Dependent Claims (21)
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Specification