Patent ID: 11902065
Assignee: HUAWEI TECHNOLOGIES CO., LTD.
Field: Digital communication (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 0:
1. An apparatus applied in a wireless local area network (WLAN), the apparatus comprising:
a processor, configured to determine a short training sequence; and
a transceiver, configured to send the short training sequence on a channel, wherein a bandwidth of the channel is 320 MHz;
wherein the short training sequence has a periodicity of 1.6 μs and satisfies the following:

S−2040:8:2040={c1×(M,−1,M,−1,−M,−1,M),0,C2×(−M,1,M,1,−M,1,−M),a1,c3×(M,−1,M,−1,−M,−1,M),0,c4×(−M,1,M,1,−M,1,−M),0,c5×(M,−1,M,−1,−M,−1,M),0,c6×(−M,1,M,1,−M,1,−M),a2,c7×(M,−1,M,−1,−M,−1,M),0,c8×(−M,1,M,1,−M,1,−M)}×(1+j)/√{square root over (2)};

wherein −2040:8:2040 refers to a tone subscript and is −2040, −2032, −2024, . . . , −8, 0, 8, . . . , 2024, 2032, 2040, and a value of other tones is 0; and
wherein a value of ai is any one of {−1, 0, 1}, i=1, 2, a value of cj is any one of {−1, 1}, j=1, 2, 3, 4, 5, 6, 7, 8, and M={−1, −1, −1, 1, 1, 1, −1, 1, 1, 1, −1, 1, 1, −1, 1}.