Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Patent
1998-05-20
2000-12-26
Maung, Nay
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
455436, 455442, H04Q 720
Patent
active
061672696
ABSTRACT:
In a fixed facility for a mobile communication system including a mobile terminal, the fixed facility covers a first and a second radio zone which are assigned with a first and a second radio frequency, respectively. The mobile terminal is communicable with the fixed facility by the use of, as a current radio frequency, one of the first and the second radio frequencies and is capable of producing a request signal representative of request of a handoff in which the mobile terminal is communicable with the fixed facility by the use of another of the first and the second radio frequencies at a boundary area between the first and the second radio zones. The fixed facility has a judging arrangement which is responsive to the request signal and judges whether or not the second radio frequency is usable by the mobile terminal. The fixed facility further has a signal transmitting arrangement transmits a command signal, relating to the handoff, towards the mobile terminal through the current radio frequency in response to a judgement result derived from the judging arrangement.
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Japanese Office Action dated Jun. 22, 1999, with partial translation.
Gelin Jean A
Maung Nay
NEC Corporation
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