| US 7,606,318 B2 | ||
| Method of space-time encoding and decoding for frequency selective fading channel | ||
| Yingmin Wang, Beijing (China); and Xiaolong Ran, Beijing (China) | ||
| Assigned to Da Tang Mobile Communications Equipment Co., Ltd., Beijing (China) | ||
| Appl. No. 10/518,426 PCT Filed Jun. 02, 2003, PCT No. PCT/CN03/00425 § 371(c)(1), (2), (4) Date Aug. 22, 2005, PCT Pub. No. WO04/002036, PCT Pub. Date Dec. 31, 2003. |
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| Claims priority of application No. 02 1 21410 (CN), filed on Jun. 20, 2002. | ||
| Prior Publication US 2006/0072680 A1, Apr. 06, 2006 | ||
| Int. Cl. H04B 7/02 (2006.01) | ||
| U.S. Cl. 375—267 [375/316; 375/340; 375/346; 375/347] | 12 Claims |
| 1. A space-time encoding and decoding method for a frequency selective fading channel, comprising:
A. taking, by an encoder, two independent data fields of a time slot in input data as a processing unit with space-time orthogonal
encoding method, encoding them and generating two data vectors, thereby forming two diversity signals, and transmitting said
two diversity signals simultaneously with each through a corresponding diversity antenna;
B. receiving, by a terminal, said two diversity signals, and neglecting mutual interference between said two diversity signals
caused by non-orthogonality;
C. performing, by said terminal, joint detection that only takes into account the effect to said two diversity signals from
multipath interference and multi-user interference, thereby obtaining a decoding result; and
D. implementing interference cancellation based on a result of said joint detection to remove interference between said two
diversity signals, and then returning to step C to implement iteration for decoding processing.
|