发明名称 |
TIME-ADVANCED RANDOM ACCESS CHANNEL TRANSMISSION |
摘要 |
Systems and methods can be implemented on a wireless device and base stations to facilitate uplink synchronization. The wireless device can transmit a random access preamble to at least one base station serving the wireless device to initiate a random access procedure. The wireless device can identify a signal propagation time associated with the position of the wireless device and the position of the at least one base station serving the wireless device. The wireless device can also identify a positive time advance based on the identified signal propagation time for transmitting the random access preamble. Further, the wireless device can transmit the random access preamble to the at least one base station based on the identified time advance for random access.
|
申请公布号 |
CA2827218(A1) |
申请公布日期 |
2012.08.16 |
申请号 |
CA20112827218 |
申请日期 |
2011.02.11 |
申请人 |
RESEARCH IN MOTION LIMITED |
发明人 |
EARNSHAW, ANDREW MARK;WENG, JIANFENG |
分类号 |
H04W56/00;H04W64/00;H04W74/08 |
主分类号 |
H04W56/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|