(19) United States
(12) Patent Application Publication (io) Pub. No.: US 2002/0176360 Al
Racz et al. (43) Pub. Date: Nov. 28, 2002
(54) FACILITATING RELIABLE CONNECTION (52) U.S. CI 370/230; 370/395.6
ADMISSION CONTROL FOR
TELECOMMUNICATIONS SYSTEM USING
(76) Inventors: Sandor Racz, Cegled (HU); Szabolcs Malomsoky, Szentendre (HU); Istvan Szabo, Karcag (HU)
Correspondence Address: NIXON & VANDERHYE P.C. 8th Floor
1100 North Glebe Road Arlington, VA 22201 (US)
(21) Appl. No.: 10/143,826
(22) Filed: May 14, 2002
Related U.S. Application Data
(60) Provisional application No. 60/293,166, filed on May 25, 2001.
Publication Classification (51) Int. CI.7 G01R 31/08
In a telecommunications network, for establishing or modilying a radio connection a node (Nj) prepares and sends an AAL2 signaling message (110) for use by a connection admission control lunction (106) ol another node (N2) ol the telecommunications network. In accordance with the present invention, the AAL2 signaling message includes a timescale value (112) which represents a timescale over which at least one bit rate value characterizing the radio connection is defined. Including the timescale value (112) in the AAL2 signaling message (110) facilitates more efficient connection admission control by enabling, e.g., bandwidth requirements of radio connections to take into consideration delay requirements. In an illustrated example embodiment, the timescale value (112) is a burst inter-arrival time (BIT) bit value which is a time which elapses between a beginning of two subsequent bursts of AAL2 CPS (Common Part Sublayer) packets.