发明授权
US07307973B2 System and method for ranging for a fast handover in a mobile communication system
有权
用于在移动通信系统中快速切换的测距的系统和方法
- 专利标题： System and method for ranging for a fast handover in a mobile communication system
- 专利标题（中）： 用于在移动通信系统中快速切换的测距的系统和方法
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申请号： US10998890申请日： 2004-11-29
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公开(公告)号： US07307973B2公开(公告)日： 2007-12-11
- 发明人: Bong-Gee Song , Kwang-Seop Eom , Min-Hee Cho , Hyeong-Jong Ju , Seung-Eun Hong
- 申请人： Bong-Gee Song , Kwang-Seop Eom , Min-Hee Cho , Hyeong-Jong Ju , Seung-Eun Hong
- 申请人地址： KR
- 专利权人： Samsung Electronics Co., Ltd.
- 当前专利权人： Samsung Electronics Co., Ltd.
- 当前专利权人地址： KR
- 代理机构： The Farrell Law Firm
- 优先权： KR10-2003-0085979 20031129
- 主分类号： H04L12/50
- IPC分类号： H04L12/50 ; H04Q11/00
摘要：
A mobile communication system using an orthogonal frequency division multiplexing (OFDM)/orthogonal frequency division multiple access (OFDMA) scheme. The method for assigning ranging codes in the OFDM/OFDMA communication system includes classifying rangings between a base station and a mobile subscriber station (MSS) of the OFDM/OFDMA communication system into an initial ranging, a periodic ranging, a bandwidth request ranging, and a handover ranging. A first number of ranging codes used for the rangings are created and a second number of ranging codes selected from the first number of ranging codes are assigned as handover ranging codes used for the handover ranging.