US6807420B2

3G

Title

MOBILE COMMUNICATION SYSTEM MOBILE STATION AND DIVERSITY HANDOVER BRANCH CONTROL METHOD

Application Number:

US20030384314

Publication Date:

19-10-2004

Current Assignee:

NTT DOCOMO INC

Family ID:

15419022

Application Date:

07-03-2003

Publication Country:

US

View on Espacenet

Priority Date:

04-06-1997

Declaring Company:

NTT DOCOMO INC

Abstract  Abstract

A branch candidate selecting method by a mobile station and a diversity handover control method on a network side in DHO performance are provided which consider a maximum cable branch number and maximum radio branch number of the mobile station when the mobile station detects the plurality of addition branch candidates and deletion branch candidates. The mobile station inserts a plurality of addition branch candidates and deletion branch candidates that is all the DHO candidates into one handover trigger signal and notifies the network. The addition branch candidates are put into addition information parameters in the handover trigger signal and the deletion branch candidates are put into deletion information parameters. To simplify processing on the network side the network side separates the addition branch candidates from the deletion branch candidates and carries out sequential processing of them independently.

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