| CPC H04B 7/0478 (2013.01) [H04B 7/046 (2013.01); H04B 7/0482 (2013.01); H04B 7/0486 (2013.01); H04B 7/0639 (2013.01)] | 15 Claims |

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1. A codebook configuration method, comprising:
determining, by a communication device, configuration information of a codebook, wherein the configuration information of the codebook comprises at least one of value range selection information of a base vector in a construction model of the codebook or value range selection information of a codeword in the codebook; and
sending, by the communication device, the configuration information of the codebook to a communication peer end,
wherein the determining, by a communication device, configuration information of a codebook comprises: configuring, by the communication device, the value range selection information of the base vector or the value range selection information of the codeword in at least one of following manners:
configuring the value range selection information of the base vector or the value range selection information of the codeword for various rank groups or layer groups, respectively;
configuring the value range selection information of the base vector or the value range selection information of the codeword for various feedback manners, respectively;
configuring the value range selection information of the base vector or the value range selection information of the codeword for various antenna groups, respectively; or
configuring the value range selection information of the base vector or the value range selection information of the codeword for various measurement reference signal sets, respectively;
wherein the value range selection information of the base vector comprises value range selection information configured for a plurality of sub-ranges.
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