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基本信息:
- 专利标题: 用于正交频分复用应用的空间时间发射分集系统及方法
- 专利标题(英):Space-time transmit diversity systems and methods for OFDM applications
- 申请号:CN200580017160.6 申请日:2005-04-04
- 公开(公告)号:CN1961499A 公开(公告)日:2007-05-09
- 发明人: M·贾 , 童文 , J·马 , P·朱 , D·-S·于
- 申请人: 北方电讯网络有限公司
- 申请人地址: 加拿大魁北克省
- 专利权人: 北方电讯网络有限公司
- 当前专利权人: 苹果公司
- 当前专利权人地址: 加拿大魁北克省
- 代理机构: 中国专利代理(香港)有限公司
- 代理人: 曾祥夌; 王勇
- 优先权: 60/558,566 2004.04.02 US; 60/563,802 2004.04.21 US; 60/566,009 2004.04.28 US
- 国际申请: PCT/CA2005/000504 2005.04.04
- 国际公布: WO2005/096519 EN 2005.10.13
- 进入国家日期: 2006-11-27
- 主分类号: H04B7/06
- IPC分类号: H04B7/06 ; H04J11/00 ; H03M13/05
Embodiments of the invention provide orthogonal Frequency Division Multiplexing-Space-Time Block Codes (OFDMSTBC) mappings for code rate 1, 2 and 4 codes for 4 Transmit Antennas. To overcome the innate weakness of known codes, a new class of STBC codes is provided which is particularly suited for OFDM applications, although other applications are also contemplated. Codes for STBC mappings in the time direction, the frequency direction and a combined time frequency mapping for multiple antennas are provided. In OFDM applications, these codes exploit the properties of OFDM and FEC codes to substantially maintain the advantages of Alamouti codes. Furthermore, while the detailed examples given herein focus on four antenna applications, they can be easily extended to systems with more than four antennas.
公开/授权文献:
- CN1961499B 用于正交频分复用应用的空间时间发射分集系统及方法 公开/授权日:2013-06-05