Method for selecting modulation and coding scheme
AssigneeRalink Technology Corporation
InventorsYung Szu Tu, Jiunn Tsair Chen, Chun Hsien Wen, Yen Chin Liao
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Abstract
A method for selecting a modulation and coding scheme (MCS) applied to a multiple-antenna system. The method calculates the throughout of a plurality of MCSs based on the signal to noise ratio of the multiple-antenna system and selects a MCS from the plurality of MCSs accordingly.
Claims23
A method for selecting a modulation and coding scheme (MCS) applied in a double-antenna communication system, the method selecting a MCS from available MCSs according to signal to noise ratio (SNR) of received signals, comprising the steps of:
- calculating combined SNRs of single spatial stream signals emitted by the double-antenna and calculating throughputs of the MCSs corresponding to the single spatial stream signals according to the combined SNR and a first equation;
- calculating throughputs of the MCSs corresponding to double spatial stream signals and a code rate smaller than a threshold according to the SNRs of the double spatial stream signals and a second equation;
- calculating throughputs of the MCSs corresponding to the double spatial stream signals and a code rate greater than the threshold according to the SNRs of the double spatial stream signals and a third equation;
- and
- selecting an MCS from the available MCSs as the MCS for signal transmission according to the calculated throughputs.
A method for selecting a modulation and coding scheme (MCS) applied in a multiple-antenna communication system, the method selecting an MCS from available MCSs according to signal to noise ratio (SNR) of received signals, comprising the steps of:
- calculating throughputs of MCSs with a code rate smaller than a threshold according to SNRs of multiple spatial stream signals and a first equation;
- calculating throughputs of MCSs with a code rate greater than a threshold according to the SNRs of multiple spatial stream signals and a second equation;
- and
- selecting an MCS from available MCSs as the MCS for signal transmission according to the calculated throughputs.
Dependencies are inferred from the claim text.