Channel estimation method used for multi-user multi-aerial system |
Title： |
| Channel estimation method used for multi-user multi-aerial system |
|
Application Number： |
200710176162 |
Application Date： |
2007/10/22 |
Announcement Date： |
2008/03/12 |
Pub. Date： |
|
Publication Number： |
101141426 |
Announcement Number： |
|
Grant Date： |
|
Granted Pub. Date： |
|
ApplicationType： |
Invention |
State/Country： |
11[China|beijing] |
IPC： |
H04L 25/02, H04L 25/03, H04L 27/26 |
Applicant(s)： |
Tsinghua University |
Inventor(s)： |
Yang Zhihang, Du Dengbao, Wang Jintao, Wang Jun, Pan Changyong |
Key Words： |
Channel estimation method, multi-user multi-aerial system |
Abstract： |
The present invention discloses a channel estimation method used for a multi-user multi-antenna system, which belongs to the digital information transmission technical field. The method comprises that a mutual orthogonal frequency spectrum training sequence is obtained; the training sequence is padded by a transmitting end in front of a data block, and a data frame is formed and synchronously transmitted through a plurality of channels; the data frame is received by a receiving end, and the channel impulse estimation from the transmitting end to the receiving end is accounted according to the training sequence. By adopting the mutual orthogonal training sequence to perform padding, the mutual interference between the training sequences is eliminated, the present invention can use the mutual orthogonal training sequence adopted to effectively perform channel estimation at a receiving end of an MIMO system, and obtains the frequency spectrums where the channel impulse estimation are on the entire frequency band, thus the MIMO system can obtain channel estimation on each receiving and transmitting link on each data frame, and the information data transmitted by the transmitting end is balanced by using the channel estimation. |
Claim： |
|
Priority： |
|
PCT： |
|
LegalStatus： |
|
Relevancy information
