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公开(公告)号:US20200295851A1
公开(公告)日:2020-09-17
申请号:US16887644
申请日:2020-05-29
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor: Fan LUO , Feng LI , Yue LIU , Chaoyi YAN
Abstract: This application provides a calibration method: receiving, by a control apparatus of an RRU, resource configuration information, where a time-frequency resource indicated by the resource configuration information is used to send and receive a calibration signal between the RRU and n other RRUs, the n other RRUs are RRUs in a calibration path topology, a quantity of hops of a calibration path between the RRU and each of the n other RRUs is 1; controlling, based on the resource configuration information, the RRU to send and receive a calibration signal on the time-frequency resource; obtaining m groups of path information based on the calibration signal; obtaining m calibration coefficients based on the in groups of path information; and compensating M channels of the RRU by using the in calibration coefficients.