发明授权
- 专利标题： Method of notifying resource allocation for demodulation reference signals
- 专利标题（中）： 通知资源分配解调参考信号的方法
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申请号： US13500596申请日： 2010-10-28
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公开(公告)号： US08934430B2公开(公告)日： 2015-01-13
- 发明人: Yingyu Zhang , Renmao Liu , Ming Ding , Yongming Liang , Zeng Yang
- 申请人： Yingyu Zhang , Renmao Liu , Ming Ding , Yongming Liang , Zeng Yang
- 申请人地址： JP Osaka
- 专利权人： Sharp Kabushiki Kaisha
- 当前专利权人： Sharp Kabushiki Kaisha
- 当前专利权人地址： JP Osaka
- 代理机构： Birch, Stewart, Kolasch & Birch, LLP
- 优先权： CN200910226431 20091120
- 国际申请： PCT/JP2010/069646 WO 20101028
- 国际公布： WO2011/062066 WO 20110526
- 主分类号： H04W4/00
- IPC分类号： H04W4/00 ; H04L5/00
摘要：
A method of notifying resource allocation for Demodulation Reference Signal (DMRS) is provided. A base station notifies to a user equipment a power offset value between an average EPRE value for data symbols and an average EPRE value for the DMRS at each layer in a semi-static or static manner. Also, the base station dynamically notifies to the user equipment a current channel rank or a current DMRS distribution pattern for the user equipment. The user equipment determines an allocated DMRS antenna port based on a correspondence between the received channel rank and an allocation of DMRS antenna port, thereby obtaining resource allocation information for the DMRS. The signaling overhead for power allocation in the system can be reduced, the efficiency of power amplifier can be improved and the flexibility of system scheduling can be increased. A method of notifying antenna port resource allocation for DMRS is also provided.
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