发明名称 |
Received signal quality determination methods and systems for convolutionally encoded communication channels |
摘要 |
Received signal quality (bit error rate) estimates for a communication channel are provided by a receiver apparatus which is connected to the communication channel and which includes a convolutional decoder providing an estimate of a transmitted data frame and an associated final decision metric. The bit error rate estimate is generated by a bit error rate estimation circuit which includes a memory containing values for mapping the final decision metric to a corresponding bit error rate estimate. The bit error rate estimate may be provided to a control node of the communication channel which may use the provided estimate to take a corrective action such as determining whether a handover to a different communication channel should be initiated based upon the bit error rate. The communication channel may be an allocated channel of a cellular radio communication network servicing a mobile terminal receiver apparatus with the control nodes being the base stations of the cellular network. The convolutional decoder may be a Viterbi decoder.
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申请公布号 |
US6141388(A) |
申请公布日期 |
2000.10.31 |
申请号 |
US19980038602 |
申请日期 |
1998.03.11 |
申请人 |
ERICSSON INC. |
发明人 |
SERVAIS, FREDERIC HENRI;JOHNSON, PHILLIP MARC |
分类号 |
H03M13/01;H03M13/41;H04L1/00;H04L1/20;(IPC1-7):H04L23/02 |
主分类号 |
H03M13/01 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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