发明名称 |
METHOD FOR PARAMETER ESTIMATION AND RECEIVER |
摘要 |
The invention relates to a method for parameter estimation in a digital radio system receiver, and a receiver. The receiver comprises a detector (200) generating a number (210) describing the probability of a received symbol using soft decision metrics. Means (202) generate mean values (212) of the numbers (210) describing the received symbol probability by which an estimator (206) generates a new channel estimate (218). As the energy of different symbols varies the channel estimate (218) to be generated is weighted by the symbol energy (214) to be generated in means (204). The channel estimate (218) change can be attenuated by averaging or by multiplying the change by a weighting value. The channel estimate (218) of the invention can also be used in the estimation of other data communication parameters whereby, for example, the Doppler error can be corrected. |
申请公布号 |
WO9912290(A2) |
申请公布日期 |
1999.03.11 |
申请号 |
WO1998FI00672 |
申请日期 |
1998.08.28 |
申请人 |
NOKIA TELECOMMUNICATIONS OY;PIIRAINEN, OLLI |
发明人 |
PIIRAINEN, OLLI |
分类号 |
H04L27/01;H04B7/005;H04B7/01;H04B17/00;H04L25/02 |
主分类号 |
H04L27/01 |
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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