Mobile communication system and base station control apparatus

Telecommunications – Transmitter and receiver at same station – Radiotelephone equipment detail

Reexamination Certificate

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Details

C455S442000, C370S331000

Reexamination Certificate

active

07496383

ABSTRACT:
A neighbor sector is automatically set to effectively perform soft handover. A base station corresponding to a first sector to communicate with a wireless terminal and a base station corresponding to a second sector to start communication with the wireless terminal due to movement of the wireless terminal or the like transmit a terminal identifier acquired from the wireless terminal, a time and a sector identifier to a base station control part (control part in the following). The control part successively stores the received sector identifier into a table correspondingly to the terminal identifier and the time received from the base station. Besides, the control part refers to the table, judges whether different sector identifiers are stored in a previously determined time range, regards a pair of the two different sector identifiers as neighbor sector candidates and counts the number of times they are regarded as the neighbor sector candidates. With respect to the neighbor sector candidates in which the counted number of times is a threshold or more, the control part transmits, to the base station corresponding to one sector of the neighbor sector candidates, a change request including the neighbor sector information concerning the other sector.

REFERENCES:
patent: 5960349 (1999-09-01), Chheda et al.
patent: 6188914 (2001-02-01), Chheda
patent: 6393302 (2002-05-01), O'Byrne
patent: 6778833 (2004-08-01), Fortuna
patent: 7050812 (2006-05-01), Boyer et al.
patent: 7177648 (2007-02-01), Attar et al.
patent: 7212822 (2007-05-01), Vicharelli et al.
patent: 2000-287256 (2000-10-01), None
3GPPTR 25.832 v4.0.0 (Mar. 2001) (Releas e 4).
Connection Layer 3GPP2.C.S0024 Ver 3.0 pp. 6-121-127.

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