Method and apparatus for high rank multiple-input multiple-output (MIMO) symbol detection
AssigneeSamsung Electronics Co., Ltd.
InventorsHyukjoon Kwon, Xiaoqiang Ma, Kee-Bong Song
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Abstract
A method and an apparatus in a multiple-input multiple-output (MIMO) wireless communication system are provided. A signal is received over a channel. The channel is decomposed into a plurality of virtual channels. Symbol detection is performed on each of the plurality of virtual channels using respective symbol detectors. At least one of the symbol detectors has a lower rank than that of the channel. Output from the symbol detectors is combined to obtain final log likelihood ration (LLR) values for layers of the channel. Decoding is performed using the final LLR values to output a decoded symbol value of the received signal.
Claims20
A method of operating an electronic device in a multiple-input multiple-output (MIMO) wireless communication system, the method comprising:
- receiving a signal over a channel;
- decomposing the channel into a plurality of virtual channels;
- performing symbol detection on each of the plurality of virtual channels using respective symbol detectors, wherein at least one of the symbol detectors has a lower rank than that of the channel;
- combining output from the symbol detectors to obtain final log likelihood ratio (LLR) values for layers of the channel;
- and
- performing decoding using the final LLR values to output a decoded symbol value for the received signal.
An electronic device, comprising:
- a processor;
- and
- a non-transitory computer readable storage medium storing instructions that, when executed, cause the processor to:
- receive a signal over a channel;
- decompose the channel into a plurality of virtual channels;
- perform symbol detection on each of the plurality of virtual channels using respective symbol detectors, wherein at least one of the symbol detectors has a lower rank than that of the channel;
- combine output from the symbol detectors to obtain final log likelihood ratio (LLR) values for layers of the channel;
- and
- perform decoding using the final LLR values to output a decoded symbol value of the received signal.
A multiple-input multiple-output symbol detector of an electronic device comprising:
- one or more preprocessors configured to decompose a channel, over which a signal is received, into a plurality of virtual channels;
- a plurality of symbol detectors configured to perform symbol detection on each of the plurality of virtual channels, wherein at least one of the plurality of symbol detectors has a lower rank than that of the channel;
- a combiner configured to combine output from the symbol detectors to obtain final log likelihood ratio (LLR) values for layers of the channel;
- and
- a decoder configured to decode the final LLR values and output a decoded symbol value of the received signal.
Dependencies are inferred from the claim text.