US 11,757,688 B2
Sequence-based signal processing method and apparatus
Bingyu Qu, Beijing (CN); and Hao Sun, Beijing (CN)
Assigned to Huawei Technologies Co., Ltd., Shenzhen (CN)
Filed by Huawei Technologies Co., Ltd., Shenzhen (CN)
Filed on May 2, 2022, as Appl. No. 17/734,885.
Application 17/734,885 is a continuation of application No. 16/871,965, filed on May 11, 2020, granted, now 11,362,873.
Application 16/871,965 is a continuation of application No. 16/248,486, filed on Jan. 15, 2019, granted, now 10,673,669, issued on Jun. 2, 2020.
Application 16/248,486 is a continuation of application No. PCT/CN2018/095948, filed on Jul. 17, 2018.
Claims priority of application No. 201710687282.0 (CN), filed on Aug. 11, 2017.
Prior Publication US 2022/0407753 A1, Dec. 22, 2022
Int. Cl. H04L 27/26 (2006.01); H04W 72/21 (2023.01); H04L 5/00 (2006.01)
CPC H04L 27/2613 (2013.01) [H04L 27/261 (2013.01); H04L 27/262 (2013.01); H04W 72/21 (2023.01); H04L 5/0048 (2013.01); H04L 5/0051 (2013.01)] 30 Claims
OG exemplary drawing
 
1. A method comprising:
receiving, by a network device, a first signal occupying 12 subcarriers; and
processing, by the network device, the first signal based on a sequence {fn}, wherein fn is an element in the sequence {fn}, fn meets fn=xn·exp(2π·j·a·n), 0≤n≤11, n is an integer, a is a real number, xn=exp (π·j·sn/4), sn is an element sequence in a sequence {sn} consisting of 12 elements, the sequence {sn} is one of the following sequences: {−1, −3, 3, −1, −3, −3, −3, −1, 1, −1, 1, −3}, {−1, 1, 3, −3, 1, −1, 1, −1, −1, −3, 1, −1}, {−3, −1, 3, −3, −3, −1, −3, 1, −1, −3, 3, 3}, {−3, −3, 3, −3, −1, 3, 3, 3, −1, −3, 1, −3}, {−3, −1, −1, −3, −3, −1, −3, 3, 1, 3, −1, −3}, {3, −1, −3, 3, −3, −1, 3, 3, 3, −3, −1, −3}, {−3, −1, 3, 1, −3, −1, −3, 3, 1, 3, 3, 1}, and {1, −1, 3, −1, −1, −1, −3, −1, 1, 1, 1, −3}.