Title:
【発明の名称】受信機におけるチャネル品質推定方法および装置
Document Type and Number:
Japanese Patent JP3038919
Kind Code:
B2
Abstract:
The present disclosure includes a discussion of a method of and apparatus for channel quality estimation (CQE) in a receiver. Each channel is divided into observation intervals and sub-intervals. The duration of the sub-interval is chosen as the largest interval in which the channel is essentially static. The CQE collects error information for each symbol of the sub-interval, forming a sub-interval error value. The CQE maps the sub-interval error value into a sub-interval bit error rate (BER) estimate. The mapping is a non-linear function dependent on the specific radio system. Then, the CQE averages the sub-interval BER estimates over the entire observation interval, forming an interval BER estimate. Finally, the CQE compares the interval BER estimate to a predetermined threshold, forming a channel quality estimation decision for each observation interval.
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Inventors:
La Rosa, Christopher Pee
Kearney, Michael Jay
Kearney, Michael Jay
Application Number:
JP50909894A
Publication Date:
May 08, 2000
Filing Date:
September 16, 1993
Export Citation:
Assignee:
MOTOROLA INCORPORATED
International Classes:
H04B7/26; H04B1/10; H04B3/46; H04B17/00; H04L27/18; (IPC1-7): H04L27/18; H04B7/26; H04B17/00
Domestic Patent References:
| JP63100838A | ||||
| JP60153650A | ||||
| JP394856U | ||||
| JP5507835A |
Attorney, Agent or Firm:
Shinsuke Onuki (1 person outside)