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1.发明授权公开(公告)号：US11736267B2
公开(公告)日：2023-08-22
申请号：US16892691
申请日：2020-06-04
发明人： Tong Ji , Yiling Wu , Guangwei Yu , Robert William Young , Brian Martin Gaffney
CPC分类号： H04L7/041 , H04J11/0069 , H04J13/0062 , H04L27/2662 , H04L27/2663 , H04W56/00 , H04W56/001 , H04L27/2657 , H04L27/2671 , H04W4/70
摘要： The present disclosure relates to the field of wireless communications technologies, relates to a signal sending device, a signal receiving device, a symbol timing synchronization method, and a system, and resolves a problem that complexity of symbol timing synchronization performed by a terminal with relatively low crystal oscillator accuracy is high. In a receiving device, a receiving module receives a synchronization signal including a first signal and a second signal. The first signal includes N1 generalized ZC sequences, and the second signal includes N2 generalized ZC sequences. The second signal is used to distinguish different cells or different cell groups. There are at least two generalized ZC sequences with different root indexes in (N1+N2) generalized ZC sequences. A processing module performs a first sliding correlation operation and a second sliding correlation operation on the synchronization signal, and performs symbol timing synchronization according to a relationship between a sliding correlation peak generated when a sliding correlation is performed on the N1 generalized ZC sequences and a sliding correlation peak generated when a sliding correlation is performed on the N2 generalized ZC sequences. This has relatively low implementation complexity, compared with an existing method in which grid search should be performed multiple times to compensate for a relatively large phase rotation.
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2.发明授权公开(公告)号：US10693624B2
公开(公告)日：2020-06-23
申请号：US15967371
申请日：2018-04-30
发明人： Tong Ji , Yiling Wu , Guangwei Yu , Robert William Young , Brian Martin Gaffney
摘要： The present invention relates to the field of wireless communications technologies. In a receiving device, a receiving module receives a synchronization signal including a first signal and a second signal. The first signal includes N1 generalized ZC sequences, and the second signal includes N2 generalized ZC sequences. The second signal is used to distinguish different cells or different cell groups. There are at least two generalized ZC sequences with different root indexes in (N1+N2) generalized ZC sequences. A processing module performs a first sliding correlation operation and a second sliding correlation operation on the synchronization signal, and performs symbol timing synchronization according to a relationship between a sliding correlation peak generated when a sliding correlation is performed on the N1 generalized ZC sequences and a sliding correlation peak generated when a sliding correlation is performed on the N2 generalized ZC sequences.
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公开(公告)号：US10154492B2
公开(公告)日：2018-12-11
申请号：US15068512
申请日：2016-03-11
IPC分类号： H04W72/04 , H04L5/00 , H04L27/00 , H04W16/14 , H04W52/34 , H04L25/03 , H04L29/08 , H04L29/06 , H04W72/12 , H04B7/08 , H04B7/12 , H04L5/16 , H04L27/20 , H04L27/34 , H04W16/06
摘要： A method for allocating bandwidth to communication according to a first communication protocol, the method comprising identifying bandwidth that is allocated to a communication channel for communication according to a second communication protocol and which forms a guard band of the communication channel and allocating the identified bandwidth to communication according to the first communication protocol, said allocation being performed non-uniformly across the identified bandwidth such that an allocation of a first portion of the identified bandwidth, which is located closer to a communication according to the second communication protocol than a second portion of the identified bandwidth, is constrained to a greater extent than an allocation of the second portion of the identified bandwidth.
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