Patent ID: 11923940
Assignee: HUAWEI TECHNOLOGIES CO., LTD.
Field: Telecommunications (Electrical engineering)
Classification: CPC H | IPC H

Claim 7:
8. A channel state information reporting method, comprising:
sending, by a network device, a first reference signal; and
receiving, by the network device, first indication information obtained by a terminal device based on the first reference signal, wherein the first indication information indicates a differential value between channel state information of a first antenna port set and channel state information of a second antenna port set, the first antenna port set comprises x antenna ports of the terminal device, the second antenna port set comprises m antenna ports of the terminal device, the first antenna port set is different from the second antenna port set, x and m are positive integers, and the channel state information of the first antenna port set comprises first amplitude information and/or the channel state information of the second antenna port set comprises second amplitude information.