公开(公告)号：US09025501B2

公开(公告)日：2015-05-05

申请号：US13742885

申请日：2013-01-16

Applicant: Huawei Technologies Co., Ltd.

Inventor： Li Li ,  Zhidong Zhang ,  Hui Huang ,  Yayong Chen

IPC: H04J3/00 ,  H04W4/00 ,  H04W72/04 ,  H04W56/00

CPC classification number: H04W72/0446 ,  H04W56/00

Abstract: The present invention provides a method and a device for implementing synchronization between different systems. The method includes setting a starting time of an LTE TDD frame, where the starting time set for the LTE TDD frame is later than a starting time set for a WiMAX frame. The LTE TDD frame is transmitted after the starting time of the LTE TDD frame arrives. The WiMAX frame adopts a subframe ratio structure of 29:18, the LTE TDD frame adopts a subframe ratio structure of subframe configuration 1, and an UpPTS time slot and a last uplink symbol of a last uplink subframe which are in the LTE TDD frame are in a status of being knocked off.

Abstract translation: 本发明提供一种用于实现不同系统之间的同步的方法和装置。 该方法包括设置LTE TDD帧的开始时间，其中针对LTE TDD帧设置的开始时间晚于为WiMAX帧设置的开始时间。 在LTE TDD帧的开始时间到达之后发送LTE TDD帧。 WiMAX帧采用29:18的子帧比结构，LTE TDD帧采用子帧配置1的子帧比结构，并且在LTE TDD帧中的最后一个上行子帧的UpPTS时隙和最后一个上行符号是 处于被击倒的状态。

公开(公告)号：US10064147B2

公开(公告)日：2018-08-28

申请号：US15363299

申请日：2016-11-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yuhong Chu ,  Zhidong Zhang ,  Jun Hu

IPC: H04W56/00 ,  H04L5/00 ,  H04W36/00 ,  H04W24/10 ,  H04W36/18 ,  H04W88/08

CPC classification number: H04W56/001 ,  H04L5/0048 ,  H04W24/10 ,  H04W36/00 ,  H04W36/18 ,  H04W56/0015 ,  H04W56/004 ,  H04W56/0045 ,  H04W56/0065 ,  H04W88/08

Abstract: Embodiments of the present invention provide a synchronization method, a synchronization apparatus, and a base station, which can implement strict synchronization between base stations with relatively low costs and relatively high security and reliability. The method includes: determining reference user equipment UE, where the reference UE can communicate with a reference base station and a to-be-synchronized base station at the same time, and the reference base station and the to-be-synchronized base station have completed frequency synchronization relative to a same clock reference source; determining timing offset between the to-be-synchronized base station and the reference base station according to a moment at which the reference base station and the to-be-synchronized base station receive a synchronization reference signal that is sent by the reference UE; and performing calibration on the to-be-synchronized base station according to the timing offset.

公开(公告)号：US20130128781A1

公开(公告)日：2013-05-23

申请号：US13742885

申请日：2013-01-16

Applicant: Huawei Technologies Co., Ltd.

Inventor： Li Li ,  Zhidong Zhang ,  Hui Huang ,  Yayong Chen

IPC: H04W72/04

CPC classification number: H04W72/0446 ,  H04W56/00

Abstract: The present invention provides a method and a device for implementing synchronization between different systems. The method includes setting a starting time of an LTE TDD frame, where the starting time set for the LTE TDD frame is later than a starting time set for a WiMAX frame. The LTE TDD frame is transmitted after the starting time of the LTE TDD frame arrives. The WiMAX frame adopts a subframe ratio structure of 29:18, the LTE TDD frame adopts a subframe ratio structure of subframe configuration 1, and an UpPTS time slot and a last uplink symbol of a last uplink subframe which are in the LTE TDD frame are in a status of being knocked off.

Abstract translation: 本发明提供一种用于实现不同系统之间的同步的方法和装置。 该方法包括设置LTE TDD帧的开始时间，其中针对LTE TDD帧设置的开始时间晚于为WiMAX帧设置的开始时间。 在LTE TDD帧的开始时间到达之后发送LTE TDD帧。 WiMAX帧采用29:18的子帧比结构，LTE TDD帧采用子帧配置1的子帧比结构，并且在LTE TDD帧中的最后一个上行子帧的UpPTS时隙和最后一个上行符号是 处于被击倒的状态。