发明授权
US08134996B2 Downlink synchronization for a cellular OFDM communication system
有权
用于蜂窝OFDM通信系统的下行链路同步
- 专利标题: Downlink synchronization for a cellular OFDM communication system
- 专利标题(中): 用于蜂窝OFDM通信系统的下行链路同步
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申请号: US11459313申请日: 2006-07-21
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公开(公告)号: US08134996B2公开(公告)日: 2012-03-13
- 发明人: Eko N. Onggosanusi , Anand G. Dabak , Timothy M. Schmidl , Alan Gatherer
- 申请人: Eko N. Onggosanusi , Anand G. Dabak , Timothy M. Schmidl , Alan Gatherer
- 申请人地址: US TX Dallas
- 专利权人: Texas Instruments Incorporated
- 当前专利权人: Texas Instruments Incorporated
- 当前专利权人地址: US TX Dallas
- 代理商 Ronald O. Neerings; Wade James Brady, III; Frederick J. Telecky, Jr.
- 主分类号: H04J3/06
- IPC分类号: H04J3/06
摘要:
The present invention provides a method of operating a base station transmitter. In one embodiment, the method includes providing a cellular downlink synchronization signal having primary and secondary portions, wherein the primary portion is common for all cells and the secondary portion is cell-specific and transmitting the cellular downlink synchronization signal. In another embodiment, the method includes providing a cellular downlink synchronization signal having primary and secondary portions wherein the primary portion employs a corresponding one of a plurality of different primary signals allocated to adjoining transmission cells. The method also includes further providing cell-specific information in the secondary portion and transmitting the cellular downlink synchronization signal. The present invention also provides a method of operating user equipment. The method includes receiving a cellular downlink synchronization signal having primary and secondary portions wherein the secondary portion provides cell-specific parameters and identifying and extracting the secondary portion.
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