发明授权
EP1547279B1 MOBILE COMMUNICATIONS SYSTEM AND METHOD FOR PROVIDING MOBILE UNIT HANDOVER IN WIRELESS COMMUNICATION SYSTEMS THAT EMPLOY BEAMFORMING ANTENNAS
有权
移动通信系统和方法,用于提供无线通信系统的移动单元范围内的成就,波束赋形天线使用
- 专利标题: MOBILE COMMUNICATIONS SYSTEM AND METHOD FOR PROVIDING MOBILE UNIT HANDOVER IN WIRELESS COMMUNICATION SYSTEMS THAT EMPLOY BEAMFORMING ANTENNAS
- 专利标题(中): 移动通信系统和方法,用于提供无线通信系统的移动单元范围内的成就,波束赋形天线使用
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申请号: EP03752488.1申请日: 2003-09-22
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公开(公告)号: EP1547279B1公开(公告)日: 2008-10-29
- 发明人: CAVE, Christopher , RUDOLF, Marian , ZUNIGA, Juan Carlos
- 申请人: INTERDIGITAL TECHNOLOGY CORPORATION
- 申请人地址: 3411 Silverside Road Concord Plaza, Suite 105 Hagley Building Wilmington, Delaware 19810 US
- 专利权人: INTERDIGITAL TECHNOLOGY CORPORATION
- 当前专利权人: INTERDIGITAL TECHNOLOGY CORPORATION
- 当前专利权人地址: 3411 Silverside Road Concord Plaza, Suite 105 Hagley Building Wilmington, Delaware 19810 US
- 代理机构: Pierrou, Mattias
- 优先权: US414571P 20020927
- 国际公布: WO2004030249 20040408
- 主分类号: H04B7/216
- IPC分类号: H04B7/216 ; H04L12/56 ; H04Q7/38
摘要:
A method for handover a mobile unit (UE) from a first base station (BS1) to a second base station (BS2) in a wireless communication systems employing smart antenna technology. Following trigger events of a handover, the mobile station generates a physical signal sounding pulse transmitted by an isotropic antenna. The sounding pulse may consist of a common sequence of symbols or a specific sequence of symbols that uniquely identifies the mobile station. A series of sounding pulses can be sent according to a power ramping procedure until a base station has focused a communications beam toward the mobile. Receiving base stations provide feedback information upon detection of the sounding pulse allowing the mobile unit (UE) and/or base station (BS1-BS4) to form communication beams toward each other. A mapping protocol may also be utilized by the communication system.
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