Handoff control method and a mobile station employing the same

Details Handoff control method and a mobile station employing the same Handoff control method and a mobile station employing the same

2005-12-21

2009-10-20

Moore, Jr., Michael J (Department: 2419)

Multiplex communications

Communication over free space

Having a plurality of contiguous regions served by...

C370S342000, C455S436000

Reexamination Certificate

active

07606198

ABSTRACT:
There is disclosed a handoff control method for registering a CDMA mobile station in such a way that the waste of battery power is prevented if successive attempts to register the station fail. If it is judged that registration fails (step S106), idle handoff is inhibited (step S107). The mobile station shifts to a registration-waiting sleep mode (step S108and state ST10) in which the sending and receiving operation of the mobile station is paused for a given time. When a sleep timer that is set in the step S108times out, registration is resumed under certain conditions. On resumption, a new pilot signal is acquired.

REFERENCES:
patent: 6272122 (2001-08-01), Wee
patent: 6556555 (2003-04-01), Miller et al.
patent: 6563809 (2003-05-01), Proctor et al.
patent: 6590881 (2003-07-01), Wallace et al.
patent: 7397777 (2008-07-01), Sudo et al.

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