公开(公告)号：US20150208367A1

公开(公告)日：2015-07-23

申请号：US14158701

申请日：2014-01-17

Applicant: QUALCOMM Incorporated

Inventor： Nilesh Nilkanth KHUDE ,  Sebastien HENRI ,  Vincent Douglas PARK ,  Junyi Ll

IPC: H04W56/00 ,  H04W72/02 ,  H04W72/04 ,  H04W4/06 ,  H04W4/02

CPC classification number: H04W56/001 ,  H04W4/023 ,  H04W4/06 ,  H04W56/0015 ,  H04W72/02 ,  H04W72/0446 ,  H04W88/06

Abstract: A method, an apparatus, and a computer program product for wireless communication are provided in connection with enabling timing source selection and deselection in a decentralized manner for distributed D2D synchronization in densely populated communications systems. In an example, a communications device, functioning in a non-timing source (TS) mode, is equipped to receive a request for timing information during a synchronization channel. The communications device may further be equipped to determine whether to switch to a TS mode based on a selection utility metric value. In another example, a communications device, functioning in a TS mode, is equipped to transmit a TIB during a synchronization channel, and determine whether to switch to a non-TS mode based on a deselection utility metric value. In the TS mode, the UE is configured to transmit a TIB, while in the non-TS mode the UE is configured not to transmit the TIB.

Abstract translation: 提供了一种用于无线通信的方法，装置和计算机程序产品，用于以分散的方式启用定时源选择和取消选择，用于在人口稠密的通信系统中进行分布式D2D同步。 在一个示例中，以非定时源（TS）模式工作的通信设备被配备为在同步信道期间接收定时信息的请求。 通信设备还可以被配备为基于选择效用度量值来确定是否切换到TS模式。 在另一示例中，以TS模式工作的通信设备被配备为在同步信道期间发送TIB，并且基于取消选择效用度量值来确定是否切换到非TS模式。 在TS模式中，UE被配置为发送TIB，而在非TS模式中，UE被配置为不发送TIB。

公开(公告)号：US20150208368A1

公开(公告)日：2015-07-23

申请号：US14160381

申请日：2014-01-21

Applicant: QUALCOMM Incorporated

Inventor： Nilesh Nilkanth KHUDE ,  Sebastien HENRI ,  Vincent Douglas PARK ,  Junyi Ll

IPC: H04W56/00 ,  H04W68/02 ,  H04W72/04 ,  H04W28/02

CPC classification number: H04W56/001 ,  H04W8/005 ,  H04W28/0252 ,  H04W56/002 ,  H04W68/02 ,  H04W72/048

Abstract: A method, an apparatus, and a computer program product for wireless communication are provided in connection with improving resource allocation for distributed D2D synchronization in densely populated communications systems. In an example, a communications device is equipped to transmit a synchronization signal during a beacon period of a synchronization channel. In an aspect, the synchronization channel may include the beacon period, a paging period, and a TIB period. The communications device may further be equipped to monitor at least one of the beacon period, the paging period, or the TIB period of the synchronization channel for one or more signals from one or more UEs in a D2D network, and determine whether to transmit information during at least one of the beacon period, the paging period, or the TIB period based at least in part on the monitoring.

Abstract translation: 提供了一种用于无线通信的方法，装置和计算机程序产品，用于改善在人口稠密的通信系统中的分布式D2D同步的资源分配。 在一个示例中，通信设备被配备为在同步信道的信标周期期间发送同步信号。 在一方面，同步信道可以包括信标周期，寻呼周期和TIB周期。 通信设备还可以被配置为监视来自D2D网络中的一个或多个UE的一个或多个信号的同步信道的信标周期，寻呼周期或TIB周期中的至少一个，并且确定是否发送信息 至少部分地基于监视在信标周期，寻呼周期或TIB期间中的至少一个期间。

公开(公告)号：US20150078369A1

公开(公告)日：2015-03-19

申请号：US14029752

申请日：2013-09-17

Applicant: QUALCOMM Incorporated

Inventor： Nilesh N. KHUDE ,  Saurabha R. TAVILDAR ,  Sebastien HENRI ,  Navid ABEDINI ,  Junyi LI ,  Vincent D. PARK

IPC: H04W56/00

CPC classification number: H04W56/002 ,  H04W56/0015

Abstract: A method, an apparatus, and a computer program product for wireless communication are provided in connection with improving convergence to a common timing structure for devices in a distributed synchronization D2D network. In an example, a communications device is equipped to detect, by a UE, a synchronization signal during a listening slot duration scan of a communication channel. In an aspect, the listening slot duration may be defined based on a first timing structure, and the synchronization signal may be defined based on a second timing structure. The communications device may further be equipped to obtain timing information associated with the second timing structure from the synchronization signal, and determine whether the first timing structure or the second timing structure is a preferred timing structure.

Abstract translation: 提供了一种用于无线通信的方法，装置和计算机程序产品，用于提高对分布式同步D2D网络中的设备的公共定时结构的收敛。 在一个示例中，通信设备被配备为在通信信道的监听时隙持续时间扫描期间由UE检测同步信号。 在一方面，可以基于第一定时结构来定义收听时隙持续时间，并且可以基于第二定时结构来定义同步信号。 通信设备还可以被配备为从同步信号获得与第二定时结构相关联的定时信息，并且确定第一定时结构或第二定时结构是否是优选的定时结构。