发明授权
- 专利标题: Rake receiver with selective ray combining
- 专利标题(中): RAKE接收器与选择性RAY组合
-
申请号: US857433申请日: 1992-03-25
-
公开(公告)号: US5237586A公开(公告)日: 1993-08-17
- 发明人: Gregory E. Bottomley
- 申请人: Gregory E. Bottomley
- 申请人地址: NJ Paramus
- 专利权人: Ericsson-GE Mobile Communications Holding, Inc.
- 当前专利权人: Ericsson-GE Mobile Communications Holding, Inc.
- 当前专利权人地址: NJ Paramus
- 主分类号: H04B1/00
- IPC分类号: H04B1/00 ; H04B1/10 ; H04B1/709 ; H04B1/7115 ; H04B1/7117 ; H04B1/712
摘要:
A modified RAKE receiver, referred to as a WRAKE receiver, is used in CDMA communications. It is particularly adaptable to a subtractive CDMA system. The receiver includes a radio receiver for receiving and demodulating a composite signal of overlapping transmitted signals (spread signals), a sampler to sample the received signals, a selector for selecting different groups of samples, a correlator for correlating the samples with known despreading codes and a comparator to determine the symbol transmitted. The receiver also includes a combiner which combines either different groups of samples together or combines different correlation values together. The sample groups selected are channel independent and combine data received from different time shifts. Likewise, the sample groups for each channel and the correlation values are time-of-arrival independent.
公开/授权文献
- US5817061A Trocar assembly 公开/授权日:1998-10-06
信息查询