Invention Grant
- Patent Title: Method and apparatus for uplink power control in an orthogonal frequency division multiple access communication system
- Patent Title (中): 一种正交频分多址通信系统中上行功率控制的方法和装置
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Application No.: US13653984Application Date: 2012-10-17
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Publication No.: US08867397B2Publication Date: 2014-10-21
- Inventor: Michael H. Baker , Ethan Y. Chen , Xiaowei Jin , Isam R. Makhlouf
- Applicant: Motorola Solutions, Inc.
- Applicant Address: US IL Schaumburg
- Assignee: Motorola Solutions, Inc.
- Current Assignee: Motorola Solutions, Inc.
- Current Assignee Address: US IL Schaumburg
- Agent Steven A. May
- Main IPC: H04B1/10
- IPC: H04B1/10 ; H04B15/00 ; H04W28/02

Abstract:
A communication system minimizes inter-cell interference and handover holes by providing for a user equipment (UE) to monitor downlink signals from a serving, boundary eNodeB and one or more neighbor eNodeBs, determine a signal quality metric (SQM) for each monitored signal to produce an SQM associated with each eNodeB, and determine a maximum uplink transmit power level (PMAX) for each eNodeB. Based on the determined SQMs and PMAXs, the UE determines a eNodeB of the one or more neighbor eNodeBs with a best SQM and, in response to determining that the neighbor eNodeB of the one or more neighbor eNodeBs with a best SQM is a high power eNodeB, determines a difference between the SQM associated with the high power ENodeB and the SQM associated with the boundary eNodeB. The UE then sets a PMAX for the UE based on the difference determination.
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