Invention Grant
- Patent Title: Feedback of channel quality information
- Patent Title (中): 渠道质量信息反馈
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Application No.: US11762042Application Date: 2007-06-12
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Publication No.: US07656843B2Publication Date: 2010-02-02
- Inventor: David Puig-Oses , Yongbin Wei , Stein A. Lundby
- Applicant: David Puig-Oses , Yongbin Wei , Stein A. Lundby
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agent Kenneth Vu
- Main IPC: H04W4/00
- IPC: H04W4/00 ; H04J3/00 ; H04M1/00

Abstract:
Methods and apparatus are presented for improving the feedback of channel information to a serving base station, which allows a reduction in the reverse link load while allowing the base station to improve the forward link data throughput. Over a channel quality indicator channel, a carrier-to-interference (C/I) symbol is transmitted over multiple slots at a reduced rate, which increases the likelihood that the base station can decode said symbol. The reduced rate mode can be selectively triggered by a high velocity condition or other unfavorable channel condition. The C/I symbol is used to determine transmission formats, power levels, and data rates of forward link transmissions.
Public/Granted literature
- US20070287487A1 FEEDBACK OF CHANNEL QUALITY INFORMATION Public/Granted day:2007-12-13
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