Synchronization signal carrying method and user equipment

• US 10,548,105 B2
• Filed: 07/10/2014
• Issued: 01/28/2020
• Est. Priority Date: 07/26/2013
• Status: Active Grant

• Current Assignee: Huawei Device Company Limited (Huawei Investment & Holding Co., Ltd.)
• Original Assignee: Huawei Device Company Limited (Huawei Investment & Holding Co., Ltd.)
• Inventors: Wang, Jian
• Primary Examiner(s): Renner, Brandon M
• Assistant Examiner(s): Vogel, Jay L
• Application Number:
  US14/901,977
• Publication Number:
  US 20160374038A1
• Time in Patent Office: 2,028 Days
• CPC Class Codes: H04L 5/0014 Three-dimensional division time-code-space division H04B7/0413, H04B7/0697
• CPC Class Codes: H04L 5/0048 Allocation of pilot signals, i.e. of signals known to the receiver
• CPC Class Codes: H04L 5/0053 Allocation of signaling, i.e. of overhead other than pilot signals
• CPC Class Codes: H04L 5/0064 Rate requirement of the data, e.g. scalable bandwidth, data priority
• CPC Class Codes: H04L 5/0094 Indication of how sub-channels of the path are allocated
• CPC Class Codes: H04W 56/0015 one node acting as a reference for the others
• CPC Class Codes: H04W 72/0446 Resources in time domain, e.g. slots or frames
• CPC Class Codes: H04W 72/0453 Resources in frequency domain, e.g. a carrier in FDMA
• CPC Class Codes: H04W 72/0466 the resource being a scrambling code
• CPC Class Codes: H04W 72/56 based on priority criteria
• CPC Class Codes: H04W 76/14 Direct-mode setup
• CPC Class Codes: H04W 84/042 Public Land Mobile systems, e.g. cellular systems

Abstract

Embodiments of the present invention provide a synchronization signal carrying method and an apparatus. The synchronization signal carrying method in the present invention includes: determining, by first user equipment, a priority parameter of a synchronization signal; determining, by the first user equipment according to the priority parameter, a resource for carrying the synchronization signal, where a configuration of the resource indicates the priority parameter; and sending, by the first user equipment, the synchronization signal to second user equipment by using the resource, so that the second user equipment determines a synchronization signal for the second user equipment. The embodiments of the present invention enable a more flexible synchronization signal determining manner in a D2D communications system.

Claims

1. A synchronization signal carrying method comprising:

receiving, by a user equipment, a first synchronization signal carried by a first codeword sequence sent by a first user equipment, a second synchronization signal carried by a second codeword sequence sent by a second user equipment, and a third synchronization signal carried by a third codeword sequence sent by a third user equipment,

wherein a configuration of the first codeword sequence indicates that a source of the first synchronization signal is a global navigation satellite system (GNSS), a configuration of the second codeword sequence indicates that a source of the second synchronization signal is a network device, and a configuration of the third codeword sequence indicates that a source of the third synchronization signal is the third user equipment, and wherein a source priority of the network device is higher than a source priority of the GNSS, and the source priority of the GNSS is higher than a source priority of the third user equipment; and

determining, by the user equipment, a synchronization signal for the user equipment according to the second synchronization signal carried by the second codeword sequence.