发明授权
US6131016A Method and apparatus for enhancing communication reception at a wireless
communication terminal
失效
一种用于增强无线通信终端的通信接收的方法和装置
- 专利标题: Method and apparatus for enhancing communication reception at a wireless communication terminal
- 专利标题(中): 一种用于增强无线通信终端的通信接收的方法和装置
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申请号: US920138申请日: 1997-08-27
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公开(公告)号: US6131016A公开(公告)日: 2000-10-10
- 发明人: Lawrence Joel Greenstein , Nelson Ray Sollenberger
- 申请人: Lawrence Joel Greenstein , Nelson Ray Sollenberger
- 申请人地址: NY New York
- 专利权人: AT&T Corp
- 当前专利权人: AT&T Corp
- 当前专利权人地址: NY New York
- 主分类号: H04B7/06
- IPC分类号: H04B7/06 ; H04L1/06 ; H04L27/26 ; H04Q7/38
摘要:
A system provides transmit diversity with feedback to enhance the reception of communication signals at a wireless communication terminal. Multiple antennae are provided at the base station. The multiple antennae transmit multi-carrier information signals such as OFDM including pilot tones. The wireless communication terminal receives the pilot tones and performs processing on those tones to detect the relationship between the information signals transmitted from the various antennae of the base station. A feedback signal, based on the comparison of the pilot tones communicates back to the base station information about the channels of the respective transmit antennae to the terminals. The base station modifies the transmission processing associated with the various transmit antennae based upon the feedback signal. The modified processing improves the reception of the information signals at the wireless communication terminal.
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