公开(公告)号：US10904846B2

公开(公告)日：2021-01-26

申请号：US16073284

申请日：2017-01-11

Applicant: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY

Inventor： Yuanyuan Li ,  Haijun Zhou ,  Li Zhao ,  Ying Peng ,  Jiayi Fang

IPC: H04W56/00

Abstract: Disclosed are a synchronization method and device, which are used to achieve the distinction of a synchronization system and a synchronization level of a node in a V2V communication system, thereby quickly achieving the synchronization in the V2V communication system. Provided is a synchronization method, comprising: determining a synchronization priority level of a current node; and according to the synchronization priority level of the current node, determining a synchronization sequence used by the current node and a value of a distinguishing flag bit of the current node, wherein the distinguishing flag bit is used to distinguish whether the current node belongs to a GNSS synchronization system or an eNB synchronization system.

公开(公告)号：US10750463B2

公开(公告)日：2020-08-18

申请号：US16090177

申请日：2017-03-31

Applicant: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY

Inventor： Li Zhao ,  Yuanyuan Li ,  Haijun Zhou ,  Rui Zhao ,  Ying Peng ,  Jiayi Fang

IPC: H04W56/00 ,  H04W4/70 ,  G01S19/11 ,  G01S19/23

Abstract: Embodiments of the present disclosure provide a method and a device for identifying a synchronization priority, including: determining a synchronization priority of a node according a connection relationship between the node and a Global Navigation Satellite System (GNSS) and a relative relationship between the node and a coverage scope of an eNB; configuring a synchronization sequence and an in coverage flag of the node according to the synchronization priority of the node. Combination of the synchronization sequence and the in coverage flag of the node is used to identify the synchronization priority of the node.

公开(公告)号：US09439110B2

公开(公告)日：2016-09-06

申请号：US14363398

申请日：2012-09-28

Applicant: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY

Inventor： Wenling Bai ,  Zhuo Gao ,  Chenggang Jiang ,  Yuanyuan Li ,  Yu Yang

IPC: H04W36/00 ,  H04W16/14 ,  H04W36/06 ,  H04W12/06

CPC classification number: H04W36/0072 ,  H04W12/06 ,  H04W16/14 ,  H04W36/0055 ,  H04W36/06

Abstract: Various examples provide a method and a system for spectrum handover in cognitive radio (CR) systems. According to the method, after detecting a user of an authorized system appears at a current working frequency, the base station generates a spectrum handover command and sends the spectrum handover command via a channel identified by the CR DWNDI to instruct the UEs in the cell to perform spectrum handover according to the spectrum handover command.

Abstract translation: 各种示例为认知无线电（CR）系统中的频谱切换提供了一种方法和系统。 根据该方法，在检测到授权系统的用户以当前工作频率出现之后，基站生成频谱切换命令，并经由由CR DWNDI识别的信道发送频谱切换命令，以指示小区中的UE 根据频谱切换命令执行频谱切换。

公开(公告)号：US09380464B2

公开(公告)日：2016-06-28

申请号：US14408770

申请日：2013-06-09

Applicant: China Academy of Telecommunications Technology

Inventor： Yuanyuan Li ,  Chenggang Jiang ,  Wenling Bai ,  Yu Yang

IPC: H04W16/14 ,  H04W72/04

CPC classification number: H04W16/14 ,  H04W72/0453

Abstract: Disclosed are a method and device for determining and assisting in determining a back-up frequency in a cognitive radio system. A first cognitive system shares the wireless communication spectrum resources of an incumbent system, and the method thereof for determining a back-up frequency comprises: through a terminal, a first cognitive system obtaining a back-up frequency of a second cognitive system which has overlapping coverage in a target area in an overlapping coverage area; and according to the back-up frequency of the second cognitive system in the overlapping coverage area, selecting from the wireless communication spectrum resources at least one frequency as a back-up frequency in the target area. When determining the back-up frequency, the first cognitive system can refer to the back-up frequency of the second cognitive system to conduct determination, thereby optimizing the system performance.

Abstract translation: 公开了一种用于确定和协助确定认知无线电系统中的备用频率的方法和装置。 第一认知系统共享现有系统的无线通信频谱资源，并且其用于确定备用频率的方法包括：通过终端，第一认知系统获得具有重叠的第二认知系统的备用频率 重叠覆盖区域的目标区域覆盖; 并且根据重叠覆盖区域中的第二认知系统的备份频率，从无线通信频谱资源中选择至少一个频率作为目标区域中的备份频率。 当确定备用频率时，第一认知系统可以参考第二认知系统的备用频率进行确定，从而优化系统性能。