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：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：US20140045556A1

公开(公告)日：2014-02-13

申请号：US14050088

申请日：2013-10-09

Applicant: QUALCOMM Incorporated

Inventor： Sundar Subramanian ,  Sichao Yang ,  Xinzhou Wu ,  Junyi Ll

IPC: H04W52/02

CPC classification number: H04W52/0251 ,  B61L15/0027 ,  B61L25/025 ,  B61L29/246 ,  B61L29/28 ,  B61L2205/04 ,  G08G1/087 ,  G08G1/093 ,  G08G1/163 ,  H04W4/02 ,  H04W4/023 ,  H04W4/046 ,  H04W4/80 ,  H04W72/005 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/164

Abstract: Safety message monitoring operations and/or safety message transmission operations are controlled for a mobile wireless communications device. The periodicity with regard to safety message monitoring and/or safety message transmissions is varied based on the environment of the mobile wireless device. The transmission power level with regard to safety message transmissions is varied based on the environment of the mobile wireless device. In some embodiments, safety message monitoring and transmission operations are disabled when the mobile device is determined to be inside a building or inside a vehicle. In some embodiments, safety message monitoring rate and safety message transmission rate is varied as a function of proximity to vehicular traffic and/or the level of detected vehicular traffic. In some embodiments, safety message transmission power level is varied as a function of proximity to vehicular traffic and/or the level of detected vehicular traffic.

Abstract translation: 控制移动无线通信设备的安全消息监视操作和/或安全消息传输操作。 基于移动无线设备的环境来改变关于安全消息监视和/或安全消息传输的周期性。 关于安全消息传输的传输功率电平根据移动无线设备的环境而变化。 在一些实施例中，当确定移动设备在建筑物内或车辆内部时，安全消息监视和传输操作被禁用。 在一些实施例中，安全消息监视速率和安全消息传输速率作为与车辆交通的接近度和/或检测到的车辆交通的水平的函数而变化。 在一些实施例中，安全消息传输功率电平作为与车辆交通的接近度和/或检测到的车辆交通的水平而变化。