Invention Grant
US07929491B2 Method and apparatus for transmitting ACK/NACK information in an orthogonal frequency division multiple access system based on time division duplexing
有权
在基于时分双工的正交频分多址系统中发送ACK / NACK信息的方法和装置
- Patent Title: Method and apparatus for transmitting ACK/NACK information in an orthogonal frequency division multiple access system based on time division duplexing
- Patent Title (中): 在基于时分双工的正交频分多址系统中发送ACK / NACK信息的方法和装置
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Application No.: US12196945Application Date: 2008-08-22
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Publication No.: US07929491B2Publication Date: 2011-04-19
- Inventor: Yeon-Ju Lim , Jae-Chen Yu , Jung-Soo Jung , Dae-Gyun Kim , Hwan-Joon Kwon , Dong-Hee Kim
- Applicant: Yeon-Ju Lim , Jae-Chen Yu , Jung-Soo Jung , Dae-Gyun Kim , Hwan-Joon Kwon , Dong-Hee Kim
- Applicant Address: KR
- Assignee: Samsung Electronics Co., Ltd
- Current Assignee: Samsung Electronics Co., Ltd
- Current Assignee Address: KR
- Agency: The Farrell Law Firm, P.C.
- Priority: KR10-2007-0084656 20070822
- Main IPC: H04W52/04
- IPC: H04W52/04
Abstract:
A method is provided for transmitting control information by a Base Station (BS) in a Time Division Duplexing (TDD)-based Orthogonal Frequency Division Multiple Access (OFDMA) system. The method includes determining a TDD ratio value of a number of time slots allocated for Forward-Link (FL) and a number of time slots allocated for Reverse-Link (RL); if the TDD ratio value is not an integer, grouping Mobile Stations (MSs) into multiple groups and generating group index information; and transmitting, to the MSs, control information including the TDD ratio value and the group index information.
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