Patent ID: 11923929
Assignee: HUAWEI TECHNOLOGIES CO., LTD.
Field: Telecommunications (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A channel information obtaining method, comprising:
receiving, on a dth port of a terminal device, one or more first reference signals, wherein the one or more first reference signals are from a first network device, d∈[1, D], D is a quantity of ports of the terminal device, and D is a positive integer;
obtaining, by the terminal device, a first channel vector h1,d based on the one or more first reference signals, wherein h1,d is a channel vector of a channel between the dth port of the terminal device and the first network device;
receiving, on the dth port of the terminal device, N second reference signals, wherein N is a quantity of ports of the second reference signals, and N is an integer greater than or equal to 2;
obtaining, by the terminal device, a second channel vector h2,d based on the second reference signals;
calculating, by the terminal device, a third channel vector h3,d based on h1,d and h2,d, wherein a quantity of ports of h3,d is less than a quantity of ports of a fourth channel vector h4,d, and h4,d, is a channel vector of a channel between the first network device, a second network device, and the dth port of the terminal device; and
calculating, by the terminal device, h4,d based on h3,d.