US 12,452,803 B2
Techniques for synchronization in wireless communications
Bingyu Qu, Shenzhen (CN); and Jianqin Liu, Beijing (CN)
Assigned to Huawei Technologies Co., Ltd., Shenzhen (CN)
Filed by Huawei Technologies Co., Ltd., Shenzhen (CN)
Filed on Apr. 29, 2024, as Appl. No. 18/649,397.
Application 18/649,397 is a continuation of application No. 17/658,534, filed on Apr. 8, 2022, granted, now 11,991,650.
Application 17/658,534 is a continuation of application No. 16/715,487, filed on Dec. 16, 2019, granted, now 11,330,539, issued on May 10, 2022.
Application 16/715,487 is a continuation of application No. 16/411,804, filed on May 14, 2019, granted, now 10,652,843, issued on May 12, 2020.
Application 16/411,804 is a continuation of application No. PCT/CN2018/085740, filed on May 4, 2018.
Claims priority of application No. 201710309975.6 (CN), filed on May 4, 2017.
Prior Publication US 2024/0365254 A1, Oct. 31, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. H04W 56/00 (2009.01); H04J 11/00 (2006.01); H04L 5/00 (2006.01); H04L 27/26 (2006.01)
CPC H04W 56/0005 (2013.01) [H04J 11/00 (2013.01); H04L 5/005 (2013.01); H04L 27/26 (2013.01); H04L 27/2613 (2013.01); H04L 27/2655 (2013.01); H04W 56/00 (2013.01)] 31 Claims
OG exemplary drawing
 
1. An apparatus, comprising:
a processor, configured to generate a primary synchronization signal and a secondary synchronization signal; and
a transceiver, configured to transmit the primary synchronization signal and the secondary synchronization signal;
wherein the primary synchronization signal is based on a primary synchronization signal sequence s(n), and the primary synchronization signal sequence s(n) is based on a sequence c(n), 0≤n≤126, a recursion formula of the sequence c(n) satisfies: c(n+7)=(c(n+4)+c(n))mod 2, and the primary synchronization signal sequence s(n) satisfies one of

OG Complex Work Unit Math
wherein the secondary synchronization signal is based on a secondary synchronization signal sequence, and the secondary synchronization signal sequence is based on a sequence f1(n) and a sequence f2(n), wherein the sequence f1(n) has a same recursion formula as the sequence c(n) and a recursion formula of the sequence f2(n) satisfies: c(n+7)=(c(n+1)+c(n))mod 2, 127 subcarriers in a first orthogonal frequency division multiplexing (OFDM) symbol are for the primary synchronization signal sequence s(n), and 127 subcarriers in a second OFDM symbol are for the secondary synchronization signal sequence.