公开(公告)号：US20160066290A1

公开(公告)日：2016-03-03

申请号：US14475991

申请日：2014-09-03

Applicant: Broadcom Corporation

Inventor： Yonatan COHEN ,  Sharon LEVY ,  Rafael CARMON

IPC: H04W56/00

CPC classification number: H04W56/0015

Abstract: The present disclosure is directed to a system and method for performing timing synchronization via network listening. The system and method can be implemented in a non-synchronized base station to receive Cell-Specific Reference Signals (CRSs) of a synchronized base station during guard periods of special subframes. To allow the non-synchronized base station to receive the CRSs, the non-synchronized base station can configure one or more of its special subframes to have a shorter downlink part than corresponding special subframes of the synchronized base station. The system and method of the present disclosure can use the received CRSs to synchronize the timing of the non-synchronized base station to the timing of the synchronized base station. To prevent a substantial loss in downlink throughput due to the non-synchronized base station using a shorter DwPTS part, tracking can be performed on a once per multiple radio frame basis.

Abstract translation: 本公开涉及一种用于经由网络监听执行定时同步的系统和方法。 该系统和方法可以在非同步基站中实现，以在特殊子帧的保护期间接收同步基站的小区特定参考信号（CRS）。 为了允许非同步基站接收CRS，非同步基站可以将其特殊子帧中的一个或多个配置为具有比同步基站的相应特殊子帧更短的下行链路部分。 本公开的系统和方法可以使用所接收的CRS来使非同步基站的定时同步到同步基站的定时。 为了防止由于使用较短的DwPTS部分的非同步基站导致的下行链路吞吐量的实质性损失，可以基于每个多个无线电帧一次执行跟踪。