发明名称 |
Directional handover control in digital mobile radio systems employing MAHO |
摘要 |
A method of selecting handover targets for a communication unit exchanging a communicated signal through a serving base site in a digital cellular system. The method uses timing advance to determine a relative distance of a communication unit to the serving base site. The method comprising the steps of comparing a timing advance value with a first threshold. The first threshold may be equal to a distance one and one-half times the radius of the serving cell. When the timing advance value exceeds the first threshold, a base site frequency list is modified to include base sites non-adjacent the serving base site. The identity of the non-adjacent base sites may be determined from the directionality of the communication unit. The method further includes the step of selecting a handover target providing a highest relative RSSI value to the communication unit from the modified base site frequency list.
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申请公布号 |
US5327575(A) |
申请公布日期 |
1994.07.05 |
申请号 |
US19920856278 |
申请日期 |
1992.03.23 |
申请人 |
MOTOROLA, INC. |
发明人 |
MENICH, BARRY J.;BONTA, JEFFREY D. |
分类号 |
H04W36/30;H04W36/32;(IPC1-7):H04B1/00;H04B7/00;H04M11/00 |
主分类号 |
H04W36/30 |
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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