发明名称 |
MOBILE COMMUNICATIONS SYSTEM AND METHOD FOR PROVIDING MOBILEUNIT HANDOVER IN WIRELESS COMMUNICATION SYSTEMS THAT EMPLOY BEAMFORMING ANTENNAS |
摘要 |
<p>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 smar t antenna technology. Following trigger events of a handover, the mobile stati on 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) t o form communication beams toward each other. A mapping protocol may also be utilized by the communication system.</p> |
申请公布号 |
CA2500349(A1) |
申请公布日期 |
2004.04.08 |
申请号 |
CA20032500349 |
申请日期 |
2003.09.22 |
申请人 |
INTERDIGITAL TECHNOLOGY CORPORATION |
发明人 |
CAVE, CHRISTOPHER;RUDOLF, MARIAN;ZUNIGA, JUAN CARLOS |
分类号 |
H04B7/06;H04L12/56;H04W4/12;H04W16/28;H04W36/08;H04W36/32;(IPC1-7):H04Q7/38;H04Q7/32 |
主分类号 |
H04B7/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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