US 12,267,135 B2
Communication method and communications apparatus
Xiaohan Wang, Shanghai (CN); Yongping Zhang, Beijing (CN); Huangping Jin, Shanghai (CN); Xiang Gao, Beijing (CN); and Xiaoyan Bi, Ottawa (CA)
Assigned to Huawei Technologies Co., Ltd., Shenzhen (CN)
Filed by HUAWEI TECHNOLOGIES CO., LTD., Guangdong (CN)
Filed on Sep. 27, 2021, as Appl. No. 17/486,536.
Application 17/486,536 is a continuation of application No. PCT/CN2020/081188, filed on Mar. 25, 2020.
Claims priority of application No. 201910240080.0 (CN), filed on Mar. 27, 2019.
Prior Publication US 2022/0014251 A1, Jan. 13, 2022
Int. Cl. H04B 7/06 (2006.01); H04B 7/0417 (2017.01)
CPC H04B 7/0632 (2013.01) [H04B 7/0417 (2013.01); H04B 7/0639 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A communication method, comprising:
receiving first indication information, wherein the first indication information configures reporting bandwidth, the reporting bandwidth comprises a plurality of first-type frequency domain units on which reporting of a channel quality indicator (CQI) is based, the plurality of first-type frequency domain units comprise one or more first frequency domain units and one or more second frequency domain units, a granularity of a first frequency domain unit of the one or more first frequency domain units is less than a preconfigured first granularity, a granularity of a second frequency domain unit of the one or more second frequency domain units is the first granularity, and the first granularity is a frequency domain granularity preconfigured for reporting the CQI;
when the granularity of the first frequency domain unit is less than or equal to a predetermined second granularity, determining a plurality of second-type frequency domain units on which reporting of a precoding matrix indicator (PMI) is based in the reporting bandwidth, wherein the plurality of second-type frequency domain units comprise the one or more first frequency domain units and a plurality of third frequency domain units obtained by dividing the one or more second frequency domain units, a granularity of a third frequency domain unit of the plurality of third frequency domain units is the second granularity, the second granularity is a frequency domain granularity predetermined for reporting the PMI, and the second granularity is less than the first granularity; and
when the granularity of the first frequency domain unit is greater than a predetermined second granularity, determining a plurality of second-type frequency domain units on which reporting of a precoding matrix indicator (PMI) is based in the reporting bandwidth, wherein the plurality of second-type frequency domain units comprise a plurality of third frequency domain units obtained by dividing the one or more second frequency domain units and a plurality of fourth frequency domain units determined from the one or more first frequency domain units, at least some of the plurality of fourth frequency domain units are obtained by dividing the first frequency domain unit, a granularity of a third frequency domain unit of the plurality of third frequency domain units is the second granularity, a granularity of at least one of the plurality of fourth frequency domain units is less than the second granularity, the second granularity is a frequency domain granularity predetermined for reporting the PMI, and the second granularity is less than the first granularity.