发明授权
US08654734B2 Multi-cell channel state information-reference symbol patterns for long term evolution extended cyclic prefix and code division multiplexing-time multiplexing
有权
用于长期演进的多小区信道状态信息 - 参考符号模式扩展循环前缀和码分复用 - 时间复用
- 专利标题： Multi-cell channel state information-reference symbol patterns for long term evolution extended cyclic prefix and code division multiplexing-time multiplexing
- 专利标题（中）： 用于长期演进的多小区信道状态信息 - 参考符号模式扩展循环前缀和码分复用 - 时间复用
-
申请号： US13150909申请日： 2011-06-01
-
公开(公告)号： US08654734B2公开(公告)日： 2014-02-18
- 发明人: Vikram Chandrasekhar , Eko N. Onggosanusi , Runhua Chen
- 申请人： Vikram Chandrasekhar , Eko N. Onggosanusi , Runhua Chen
- 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; Frederick J. Telecky, Jr.
- 主分类号： H04W4/00
- IPC分类号： H04W4/00
摘要：
This invention is a method of wireless communication using candidate multi-cell CSI-RS time-frequency patterns in the invention. This invention avoids collision with antenna ports 0, 1, 2 and 3 used for transmitting cell-specific reference signals and port 5 used for transmitting demodulation reference signals. This invention satisfies the nested property requirement. This invention avoids collision with DM-RS signal for extended cyclic prefix transmission as long as DMRS Rank is less than or equal to 2. For ranks greater than 2, this invention produces patterns that may collide with Rel. 10 DM-RS for extended CP. The invention includes alternative patterns obtained by relabeling and/or reshuffling the CSI-RS antenna port numbers while preserving identical time-frequency resources assigned to CSI-RS in the time-frequency grid.