Time-domain synchronous OFDM space-frequency coding time-frequency combination channel estimating method |
Title: |
Time-domain synchronous OFDM space-frequency coding time-frequency combination channel estimating method |
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Application Number: |
200410098945 |
Application Date: |
2004/12/17 |
Announcement Date: |
2006/06/21 |
Pub. Date: |
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Publication Number: |
1791084 |
Announcement Number: |
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Grant Date: |
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Granted Pub. Date: |
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ApplicationType: |
Invention |
State/Country: |
11[China|beijing] |
IPC: |
H04L 27/32, H04L 25/02 |
Applicant(s): |
Tsinghua University |
Inventor(s): |
Yang Zhihang, Yang Lin |
Key Words: |
Time-domain synchronous,OFDM,space-frequency coding,time-frequency combination channel,estimating |
Abstract: |
The estimation method for time-frequency joint channel in TDS-OFDM space-frequency code comprises: 1) the transmission antennas of T1 and T2 executes space-frequency diversity code; 2) for some rule, alternative transmitting the TPS information after error correction coding carried on OFDM sub-carrier; 3) taking time-frequency joint channel estimation with time-domain PN sequence and TPS information; 4) space-frequency decoding to recovery transmission information. This invention changes little to original transmitter system, simple, fast and accurate, and supports soft-failure to improve reliability. |
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Priority: |
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PCT: |
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