Method of requesting security and release of communication band

Details Method of requesting security and release of communication band Method of requesting security and release of communication band

2006-12-05

2006-12-05

Sam, Phirin (Department: 2616)

Multiplex communications

Pathfinding or routing

Combined circuit switching and packet switching

C370S351000, C370S401000

Reexamination Certificate

active

07145901

ABSTRACT:
By adopting a method of requesting a band for each plurality of calls, or a method of requesting a band independently of origination or termination of a call, a method of reducing the frequency of origination of a call is provided. A first aspect may provide that a gate keeper requests security and release of a band not every call, but collectively for a plurality of calls, and the security and the release of a band are requested at frequency less than that of origination or termination of calls. A second aspect may provide that an estimated value of a time series change in necessary band is previously set in a gate keeper, and security and release of a band required for communication are requested depending on a time, but independently of origination and termination of a call.

REFERENCES:
patent: 6600735 (2003-07-01), Iwama et al.
patent: 6643258 (2003-11-01), Ise et al.
patent: 6967958 (2005-11-01), Ono et al.
patent: 2002/0035641 (2002-03-01), Kurose et al.
“Packet-Based Multimedia Communications Systems” ITU-T Recommendation H.323, ITU Telecommunications Standardization Sector, Study Group 16, O.13-14/16 Rapporteur Meeting, DRAFT H.323v4 (Including Editorial Corrections—Feb. 2001), pp. 1-223.

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