Abstract: A method of channel estimation enhancement is provided. In a wireless communications system, a transmitting device transmits a long preamble frame comprising a first training field, a signal field, and a second training field. The signal field has a beam-change indicator bit indicates whether there is beam change between the first training field and the second training field. A receiving device receives the long preamble frame, performs a first channel estimation based on the first training field, and performs a second channel estimation based on the second training field. If the beam-change indicator bit indicates negative beam change, then the receiving device performs channel estimation enhancement by combining the first channel estimation and the second channel estimation. As a result, channel estimation performance is improved.
Type:
Grant
Filed:
May 2, 2013
Date of Patent:
April 19, 2016
Assignee:
MEDIATEK Singapore Ple. Ltd.
Inventors:
Jianhan Liu, Thomas Edward Pare, Chao-Chun Wang, James June-Ming Wang, YungPing Hsu
Abstract: A method of channel estimation enhancement is provided. In a wireless communications system, a transmitting device transmits a long preamble frame comprising a first training field, a signal field, and a second training field. The signal field has a beam-change indicator bit indicates whether there is beam change between the first training field and the second training field. A receiving device receives the long preamble frame, performs a first channel estimation based on the first training field, and performs a second channel estimation based on the second training field. If the beam-change indicator bit indicates negative beam change, then the receiving device performs channel estimation enhancement by combining the first channel estimation and the second channel estimation. As a result, channel estimation performance is improved.
Type:
Application
Filed:
May 2, 2013
Publication date:
December 26, 2013
Applicant:
MEDIATEK Singapore Ple. Ltd.
Inventors:
Jianhan Liu, Thomas Edward Pare, Chao-Chun Wang, James June-Ming Wang, YungPing Hsu