| 发明名称 |
Pilot symbol transmission in wireless communication systems |
| 摘要 |
Pilot symbols transmitted from different sectors of a same base station are multiplied with a same cell specific scrambling code and a first code having low cross correlation and second codes having low cross correlation. The second code is constant over the length of the first code, but may vary for repetitions of the first code. |
| 申请公布号 |
US9088384(B2) |
申请公布日期 |
2015.07.21 |
| 申请号 |
US200611511735 |
申请日期 |
2006.08.28 |
| 申请人 |
QUALCOMM Incorporated |
发明人 |
Khandekar Aamod;Agrawal Avneesh;Gore Dhananjay Ashok |
| 分类号 |
G11B17/04;H04B7/216;H04B1/00;H04B7/02;H04J13/10;H04L25/03;H04B1/713;H04L5/00;H04L25/02 |
主分类号 |
G11B17/04 |
| 代理机构 |
|
代理人 |
Zhu Peng |
| 主权项 |
1. A wireless communication apparatus, comprising:
at least one processor configured to multiply first pilot symbols for a first antenna group of a base station utilizing a first code sequence of a first group of code sequences, having a low cross-correlation with each other, to further multiply the first pilot symbols utilizing a second code sequence of a second group of code sequences, having a low cross-correlation with each other, to map the first pilot symbols to a set of subcarriers determined based on a predetermined pattern, and to send the first pilot symbols from the first antenna group of the base station. |
| 地址 |
San Diego CA US |
