Invention Grant
US07936739B2 Base station, a mobile station, a radio communications system, and a radio transmission method using spread spectrum and chip repetition
有权
基站，移动台，无线电通信系统以及使用扩展频谱和码片重复的无线电传输方法
- Patent Title: Base station, a mobile station, a radio communications system, and a radio transmission method using spread spectrum and chip repetition
- Patent Title (中): 基站，移动台，无线电通信系统以及使用扩展频谱和码片重复的无线电传输方法
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Application No.: US11071195Application Date: 2005-03-04
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Publication No.: US07936739B2Publication Date: 2011-05-03
- Inventor: Yoshikazu Goto , Hiroyuki Atarashi , Mamoru Sawahashi
- Applicant: Yoshikazu Goto , Hiroyuki Atarashi , Mamoru Sawahashi
- Applicant Address: JP Tokyo
- Assignee: NTT DoCoMo, Inc.
- Current Assignee: NTT DoCoMo, Inc.
- Current Assignee Address: JP Tokyo
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2004-063179 20040305
- Main IPC: H04B7/216
- IPC: H04B7/216
Abstract:
A base station, a mobile station, a radio communications system, and a radio transmission method are disclosed. The base station includes a control information determining unit configured to determine control information that includes a spreading factor, the number of chip repetitions, and a phase unique to the mobile station, based on at least one of information about the type of cell environments in which the mobile station is present, information about the number of mobile stations that are present in the cell, information about information rate required by the mobile station, information about a type of traffic, information about a radio parameter of the mobile station, information about a propagation path condition, and information about interference from an adjacent cell, and configured to transmit the spreading factor, the number of chip repetitions, and the unique phase of the mobile station that is determined to the mobile station.
Public/Granted literature
Information query
