发明名称 |
System and method for timing synchronization |
摘要 |
The present disclosure relates generally to systems and methods for timing synchronization. Uplink synchronization is a necessary component of a UE operating in a mobile, wireless network. Reliable uplink synchronization generally requires regular uplink transmission containing reference signals. A method is provided that defines a burst period for sending the reference signals, determines an interval between the reference signals, and sends a timing instruction message that includes the burst period and the determined interval. A second method is provided that receives the timing instruction message and sends the reference signals in accordance with the timing instruction. |
申请公布号 |
US9226250(B2) |
申请公布日期 |
2015.12.29 |
申请号 |
US201113223075 |
申请日期 |
2011.08.31 |
申请人 |
Blackberry Limited |
发明人 |
Jia Yongkang;Womack James Earl;Cai Zhijun;Qu Shouxing |
分类号 |
H04W56/00;H04L27/26 |
主分类号 |
H04W56/00 |
代理机构 |
Conley Rose, P.C. |
代理人 |
Conley Rose, P.C. ;Brown, Jr. J. Robert |
主权项 |
1. A method in a network access equipment of maintaining uplink synchronization with a user equipment, the method comprising:
defining, by the network access equipment, a burst period for sending a plurality of timing signals, the burst period being defined within a timing advance (TA) adjustment period, the TA adjustment period including a quiet period during which the timing signals are not sent, wherein the quiet period includes a plurality of sub-frames; sending, by the network access equipment, a first timing signal instruction message to the user equipment, wherein the first timing signal instruction message comprises a timing signal parameter, wherein the timing signal parameter is one or more of the burst period, a number of timing signals required per burst period to maintain synchronization, or an interval between ones of the timing signals in the burst period; and receiving timing signals from the user equipment in accordance with the timing signal parameter; and processing the timing signals in order to maintain synchronization. |
地址 |
Waterloo, Ontario CA |