发明名称 |
Reference signal for a coordinated multi-point network implementation |
摘要 |
A system and method for broadcasting a channel state information reference signal (CSI-RS) is disclosed. A CSI-RS that is orthogonal to CSI-RSs transmitted by each of a first network cell and each of a set of neighbor cells that interfere with the first network cell is identified. In one implementation, the first network cell has a coverage containing a coverage of a second network cell. The method includes transmitting, from the second network cell, the CSI-RS that is orthogonal to CSI-RSs transmitted by each of the first network cell and each of a set of interfering neighbor cells. |
申请公布号 |
US8885563(B2) |
申请公布日期 |
2014.11.11 |
申请号 |
US201113578573 |
申请日期 |
2011.02.14 |
申请人 |
BlackBerry Limited |
发明人 |
Fong Mo-han;Yu Dongsheng;Xu Hua;Novak Robert;Guo Shiguang;Cai Zhijun;Heo Youn Hyoung |
分类号 |
H04W4/00;H04J11/00;H04W28/04;H04W48/08;H04W4/06 |
主分类号 |
H04W4/00 |
代理机构 |
Fish & Richardson P.C. |
代理人 |
Fish & Richardson P.C. |
主权项 |
1. A method of operating a network element in a wireless communications network, the method comprising:
identifying, by at least a network element, a channel state information reference signal (CSI-RS) that is orthogonal to CSI-RSs transmitted by each of a first network cell and a set of neighbor cells that interfere with the first network cell, wherein the first network cell is a macro cell and has a coverage containing a coverage of a second network cell, wherein the network element is associated with the second network cell; and transmitting, by the network element, the identified CSI-RS, wherein the set of interfering neighbor cells is a subset of a CSI-RS network cell group, and the CSI-RS transmitted by the network element is the same as a CSI-RS transmitted by a network cell that is a member of the CSI-RS network cell group, but not a member of the set of interfering neighbor cells. |
地址 |
Waterloo, Ontario CA |