Invention Grant
US08837430B2 Method and apparatus for power correction in uplink synchronization during a TD-SCDMA handover
有权
TD-SCDMA切换期间上行同步功率校正的方法和装置
- Patent Title: Method and apparatus for power correction in uplink synchronization during a TD-SCDMA handover
- Patent Title (中): TD-SCDMA切换期间上行同步功率校正的方法和装置
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Application No.: US13384189Application Date: 2010-03-31
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Publication No.: US08837430B2Publication Date: 2014-09-16
- Inventor: Tom Chin , Guangming Shi , Kuo-Chun Lee
- Applicant: Tom Chin , Guangming Shi , Kuo-Chun Lee
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agent Kristine U. Ekwueme
- International Application: PCT/US2010/029520 WO 20100331
- International Announcement: WO2011/059517 WO 20110519
- Main IPC: H04W4/00
- IPC: H04W4/00 ; H04W52/40 ; H04W36/00 ; H04W52/16 ; H04W52/14

Abstract:
A method and apparatus for adjusting and offsetting a power level of uplink transmissions from user equipment in a wireless communication system. In an aspect of the disclosure, a handoff from a source base station to a target base station includes the target base station determining a suitable power offset value and communicating this offset to the source base station. The source base station transmits a handover instruction including the offset to the user equipment (UE), and the UE transmits a synchronization code. The target base station then calculates a further power correction and transmits the correction with an acknowledgment of the synchronization code. The UE then sets the power for future transmissions based in part on the offset and correction values.
Public/Granted literature
- US20120269166A1 Method and Apparatus for Power Correction in Uplink Syncronization During a TD-SCDMA Handover Public/Granted day:2012-10-25
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