DIRECTIONAL HANDOVER CONTROL IN DIGITAL MOBILE RADIO SYSTEM EMPLOYING MAHO

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...

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Bibliographic Details
Main Authors MENICH, BARRY J, BONTA, JEFFREY D
Format Patent
LanguageEnglish
Korean
Published 10.03.1997
Edition6
Subjects
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
WIRELESS COMMUNICATIONS NETWORKS
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Summary: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.
Bibliography:Application Number: KR19930703337