US 12,395,210 B2
Method for determining transmission channel, transmission method, apparatus, system, device, and medium
Haitao Lu, Guangdong (CN); Lijun Yang, Guangdong (CN); Boqing Chen, Guangdong (CN); and Lin Guo, Guangdong (CN)
Assigned to ZTE CORPORATION, Guangdong (CN)
Appl. No. 18/034,606
Filed by ZTE CORPORATION, Guangdong (CN)
PCT Filed Nov. 29, 2021, PCT No. PCT/CN2021/133887
§ 371(c)(1), (2) Date Apr. 28, 2023,
PCT Pub. No. WO2022/111676, PCT Pub. Date Jun. 2, 2022.
Claims priority of application No. 202011375210.0 (CN), filed on Nov. 30, 2020.
Prior Publication US 2023/0379016 A1, Nov. 23, 2023
Int. Cl. H04B 7/0456 (2017.01); H04B 7/06 (2006.01); H04L 5/00 (2006.01)
CPC H04B 7/0456 (2013.01) [H04B 7/06 (2013.01); H04L 5/0023 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A method for determining a transmission channel in a millimeter wave system, comprising:
constructing a beam spatial channel model of a millimeter wave system, wherein the beam spatial channel model uses a matrix with sparsity to represent sub-beams in the millimeter wave system, and elements in the matrix represent channel gains of respective sub-beams in the millimeter wave system, respectively;
acquiring a beam spatial channel matrix of a legitimate user in the beam spatial channel model; and
using a sub-beam with concentrated energy in the beam spatial channel matrix of the legitimate user as a transmission channel;
wherein constructing the beam spatial channel model of the millimeter wave system comprises:
constructing a clustered channel model of the millimeter wave system, wherein the clustered channel model includes an antenna domain channel matrix of a legitimate user and an antenna domain channel matrix of an eavesdropper;
calculating the beam spatial channel matrix of the legitimate user according to a unitary transformation matrix and the antenna domain channel matrix of the legitimate user; and
calculating a beam spatial channel matrix of the eavesdropper according to the unitary transformation matrix and the antenna domain channel matrix of the eavesdropper, wherein the beam spatial channel model of the millimeter wave system includes the beam spatial channel matrix of the legitimate user and the beam spatial channel matrix of the eavesdropper.