Invention Grant
- Patent Title: Method and apparatus for communication channel error rate estimation
- Patent Title (中): 通信信道误码率估计方法和装置
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Application No.: US13008523Application Date: 2011-01-18
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Publication No.: US08712464B2Publication Date: 2014-04-29
- Inventor: Lennart Andersson , Yi-Pin Eric Wang , Gregory E. Bottomley
- Applicant: Lennart Andersson , Yi-Pin Eric Wang , Gregory E. Bottomley
- Applicant Address: SE Stockholm
- Assignee: Telefonaktiebolaget L M Ericsson (publ)
- Current Assignee: Telefonaktiebolaget L M Ericsson (publ)
- Current Assignee Address: SE Stockholm
- Agency: Coats and Bennett PLLC
- Main IPC: H04B7/00
- IPC: H04B7/00

Abstract:
A wireless communication device or system generates transmit power control feedback for a received power control channel by determining a command error rate (CER), or by identifying a target signal quality for the power control channel according to a defined signal-quality-to-CER mapping function. Generally, the power control channel does not include error-coded data to use for CER estimation. However, in one embodiment, the channel does include known reference bits that are evaluated for CER estimation, with the estimated CER used to set the signal quality target for inner loop power control. In other embodiments, a computed reception error probability is used to identify a CER estimate according to a defined probability-to-CER mapping function. By way of non-limiting example, these embodiments may be used to provide power control feedback for power control commands transmitted on a Fractional Dedicated Physical Channel in WCDMA systems.
Public/Granted literature
- US20110111790A1 Method and Apparatus for Communication Channel Error Rate Estimation Public/Granted day:2011-05-12
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