发明授权
US07411924B2 Method for allocating subchannels in an OFDMA mobile communication system
有权
在OFDMA移动通信系统中分配子信道的方法
- 专利标题: Method for allocating subchannels in an OFDMA mobile communication system
- 专利标题(中): 在OFDMA移动通信系统中分配子信道的方法
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申请号: US10996699申请日: 2004-11-24
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公开(公告)号: US07411924B2公开(公告)日: 2008-08-12
- 发明人: Yoon-Ok Cho , Yong-Hoon Lee , Young-Ho Jung , Eung-Sun Kim , Jong-Hyeuk Lee , Jae-Hak Chung , Chang-Soo Hwang , Seung-Hoon Nam
- 申请人: Yoon-Ok Cho , Yong-Hoon Lee , Young-Ho Jung , Eung-Sun Kim , Jong-Hyeuk Lee , Jae-Hak Chung , Chang-Soo Hwang , Seung-Hoon Nam
- 申请人地址: KR KR
- 专利权人: Samsung Electronics Co., Ltd,Korea Advanced Institute of Science and Technology
- 当前专利权人: Samsung Electronics Co., Ltd,Korea Advanced Institute of Science and Technology
- 当前专利权人地址: KR KR
- 代理机构: The Farrell Law Firm, PC
- 优先权: KR10-2003-0084029 20031125
- 主分类号: H04Q7/24
- IPC分类号: H04Q7/24
摘要:
An adaptive modulation scheme relating to an RA problem for maximizing the transmission rates of all users for maximum transmission rates in an OFDMA system including some users requiring to use services at fixed data rates. The scheme proposes introduction of an adaptive modulation using linear programming into an existing scheme for a system including a single kind of users, thereby enabling simultaneous execution of the adaptive modulation for all users in a system including two kinds of users. Further, the invention proposes another scheme of sequentially allocating subchannels to the users when the fixed transmission rate has a sufficiently small value, in order to reduce the complexity.