发明名称 |
Method and apparatus for mapping a plurality of layers to a plurality of antenna ports in a wireless communication system |
摘要 |
Provided are a method and apparatus for allocating a plurality of layers to a plurality of antenna ports in a wireless communication system. The method comprises: mapping the plurality of layers to the respective antenna ports; and mapping demodulation reference signals (DMRS) of the plurality of layers to a first code division multiplexing (CDM) set or to a second CDM set, and transmitting the signals via the plurality of antenna ports. |
申请公布号 |
US8923250(B2) |
申请公布日期 |
2014.12.30 |
申请号 |
US201113579761 |
申请日期 |
2011.02.21 |
申请人 |
LG Electronics Inc. |
发明人 |
Noh Min Seok;Chung Jae Hoon;Ko Hyun Soo;Han Seung Hee;Lee Moon Il |
分类号 |
H04B7/216;H04B7/00;G01R31/08;H04J4/00;H04J3/16;H04L5/00;H04J13/18;H04B7/04 |
主分类号 |
H04B7/216 |
代理机构 |
Birch, Stewart, Kolasch & Birch, LLP |
代理人 |
Birch, Stewart, Kolasch & Birch, LLP |
主权项 |
1. A method of allocating a plurality of layers to a plurality of antenna ports in a wireless communication system, the method comprising:
mapping the plurality of layers to the plurality of antenna port, respectively; mapping demodulation reference signals (DMRSs) of the plurality of layers to a first code division multiplexing (CDM) set or a second CDM set among radio resources and transmitting the DMRSs through the plurality of antenna ports; wherein the DMRSs mapped to a first CDM set in a first resource block (RB), from among the DMRSs of the plurality of layers, are mapped to a second CDM set in a second RB different from the first RB; the DMRSs mapped to a second CDM set in the first RB, from among the DMRSs of the plurality of layers, are mapped to a first CDM set in the second RB different from the first RB; wherein the first CDM set occupies a Resource Element (RE) allocated to first, sixth, and eleventh subcarriers of sixth and seventh Orthogonal Frequency Division Multiplexing (OFDM) symbols of each slot; the second CDM set occupies an RE allocated to second, seventh, and twelfth subcarriers of sixth and seventh OFDM symbols of each slot. |
地址 |
Seoul KR |