Apparatus and method for power-saving in multiple antenna communication system
AssigneeRealtek Semiconductor Corp.
InventorsDer-Zheng Liu, Chung-Yao Chang, Kuang-Yu Yen
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Abstract
A multiple-antenna transceiver in the present invention includes a frame controller and circuitry for transmitting and receiving. The transmitting component includes a sequence selection circuit, a MIMO modulation and coding circuit, and numerous TX RFE and AFE circuits. The receiving component includes a MIMO demodulation and decoding circuit, a sequence separation circuit, and numerous RX RFE and AFE circuits. The frame controller can enable and disable the TX and RX RFE and AFE circuits individually so as to reduce power consumption of the whole system.
Claims15
A method for operating a multiple-antenna receiver with N receiving routes, said multiple-antenna receiver operates in an idle mode or a receive mode, said method comprising the steps of:
- respectively enabling M receiving routes and respectively disabling the remaining N-M receiving routes of said multiple-antenna receiver during said idle mode, wherein 1≦M<N;
- and
- respectively enabling K receiving routes and respectively disabling the remaining N-K receiving routes of said multiple-antenna receiver during said receive mode, wherein 1≦K≦N, and k≠M.
A method for operating a multiple-antenna receiver with N receiving routes, said multiple-antenna receiver operates in an idle mode or a receive mode, said method comprising the steps of:
- respectively enabling M receiving routes and respectively disabling the remaining N-M receiving routes of said multiple-antenna receiver during said idle mode, wherein 1≦M<N;
- and
- respectively enabling K receiving routes and respectively disabling the remaining N-K receiving routes of said multiple-antenna receiver during said receive mode, wherein 1≦K≦N, wherein k≠M;
- wherein not all enabled receiving routes during said receiver mode are the same as the enabled receiving routes during said idle mode.
Dependencies are inferred from the claim text.