发明授权
- 专利标题: Acquisition mechanism for a mobile satellite system
- 专利标题(中): 移动卫星系统采集机制
-
申请号: US09447684申请日: 1999-11-23
-
公开(公告)号: US07245930B1公开(公告)日: 2007-07-17
- 发明人: T G Vishwanath , Michael Parr , Zhen-Liang Shi , Simha Erlich
- 申请人: T G Vishwanath , Michael Parr , Zhen-Liang Shi , Simha Erlich
- 申请人地址: US MD Germantown
- 专利权人: Hughes Network Systems, LLC
- 当前专利权人: Hughes Network Systems, LLC
- 当前专利权人地址: US MD Germantown
- 代理商 Craig Plastrik
- 主分类号: H04B7/00
- IPC分类号: H04B7/00
摘要:
A method for enabling synchronization of a communications terminal in a wireless communication system, and a corresponding acquisition system of the communications terminal, wherein the method consists of the steps of: receiving a burst at a receiver of the communications terminal, the burst containing a composite waveform including two or more component waveforms, wherein each of the two or more waveforms has a known frequency variation throughout the burst; detecting the presence of the composite waveform; and estimating a frequency offset and a timing offset of the composite waveform as received into the receiver, whereby synchronization is achieved.