发明名称 |
Method and Transmitter Node for Transmitting DM-RS Pattern |
摘要 |
Systems and methods for generating a demodulation reference signal for use by user equipment configured with multiple antennas based on a rank of an antenna or an antenna port are disclosed. A rank for a user equipment device is determined indicating the number of spatial layers or antenna ports in use, and the value of the rank is used to generate a cyclic shift offset and a cyclic shift, that can then be used to generate a demodulation reference signal to be used in timeslots within each spatial layer of an uplink transmission. Orthogonal cover codes may be used in conjunction with a determined cyclic shift to generate a demodulation reference signal.
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申请公布号 |
US2012275414(A1) |
申请公布日期 |
2012.11.01 |
申请号 |
US201013520803 |
申请日期 |
2010.06.24 |
申请人 |
HU YANG;ASTELY DAVID;HAMMARWALL DAVID;JOENGREN GEORGE;SONG XINGHUA;WANG JIANFENG;TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) |
发明人 |
HU YANG;ASTELY DAVID;HAMMARWALL DAVID;JOENGREN GEORGE;SONG XINGHUA;WANG JIANFENG |
分类号 |
H04W72/04 |
主分类号 |
H04W72/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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