公开(公告)号：US09467957B2

公开(公告)日：2016-10-11

申请号：US14160381

申请日：2014-01-21

Applicant: QUALCOMM Incorporated

Inventor： Nilesh Nilkanth Khude ,  Sebastien Henri ,  Vincent Douglas Park ,  Junyi Li

IPC: H04L29/06 ,  H04W56/00 ,  H04W28/02 ,  H04W68/02 ,  H04W72/04 ,  H04W8/00

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：US09888449B2

公开(公告)日：2018-02-06

申请号：US14158701

申请日：2014-01-17

Applicant: QUALCOMM Incorporated

Inventor： Nilesh Nilkanth Khude ,  Sebastien Henri ,  Vincent Douglas Park ,  Junyi Li

IPC: H04W4/00 ,  H04W24/00 ,  H04W56/00 ,  H04W4/02 ,  H04W4/06 ,  H04W72/02 ,  H04W72/04 ,  H04W88/06

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.