Method and apparatus for dynamically controlling the admission of calls to a network

• US 6,515,964 B1
• Filed: 04/30/1999
• Issued: 02/04/2003
• Est. Priority Date: 12/29/1998
• Status: Expired due to Fees

• Current Assignee: AT&T Corporation (AT&T, Inc.)
• Original Assignee: AT&T Corporation (AT&T, Inc.)
• Inventors: Yaniro, Daniel J. Jr., Hosseini-Nasab, Louise E., Cheung, Hay Yeung
• Primary Examiner(s): Nguyen, Chau
• Assistant Examiner(s): George, Keith M.
• Application Number:
  US09/303,305
• Time in Patent Office: 1,376 Days
• Field of Search: 370/230, 370/238, 370/352, 370/356, 370/252, 370/253
• US Class Current: 370/230
• CPC Class Codes: H04L 12/66 Arrangements for connecting between networks having differing types of switching systems, e.g. gateways
• CPC Class Codes: H04L 47/15 in relation to multipoint traffic arrangements for broadcast or multicast in data networks H04L12/18
• CPC Class Codes: H04L 47/28 in relation to timing considerations
• CPC Class Codes: H04L 47/70 Admission control; Resource allocation
• CPC Class Codes: H04L 47/785 among multiple network domains, e.g. multilateral agreements
• CPC Class Codes: H04L 47/801 Real time traffic
• CPC Class Codes: H04L 47/803 Application aware
• CPC Class Codes: H04L 47/805 QOS or priority aware
• CPC Class Codes: H04L 47/822 Collecting or measuring resource availability data
• CPC Class Codes: H04L 47/829 Topology based

Abstract

A network call admission control system receives a call and determines a call characteristic requirement and a network characteristic parameter. The call is admitted to the network based in part on whether the call characteristic requirement is satisfied by the network characteristic parameter. As a result, a communications service provider can provide a high quality of service for completed calls or charge a discounted rate for completed calls not meeting a certain quality of service.

Claims

1. A method for regulating the admission of a call to a packet-switched network, comprising:

determining a delay characteristic requirement of the call, said requirement including a typical delay requirement and a delay variation requirement;

determining a delay characteristic parameter of the packet-switched network, said parameter including a typical delay parameter and a delay variation parameter; and

performing a call action based at least partly upon whether the determined delay characteristic parameter satisfies the determined delay characteristic requirement, wherein the performing of the call action includes;

admitting the call to the packet-switched network if;

i. the determined typical delay parameter does not satisfy the determined typical delay requirement;

or

ii. the determined delay variation parameter does not satisfy the determined delay variation requirement; and

charging a reduced rate for the call.

2. A method for regulating the admission of a call to a packet-switched network, comprising:

determining a delay characteristic requirement of the call, said requirement including a typical delay requirement and a delay variation requirement;

determining a delay characteristic parameter of the packet-switched network, said parameter including a typical delay parameter and a delay variation parameter;

performing a call action based at least partly upon whether the determined delay characteristic parameter satisfies the determined delay characteristic requirement, wherein the performing of the call action includes;

admitting the call to the packet-switched network if;

the determined typical delay parameter satisfies the determined typical delay requirement; and

the determined delay variation parameter satisfies the determined delay variation requirement;

updating the determined typical delay parameter and the determined delay variation parameter after the call is admitted to the network; and

performing a second call action based at least partly upon whether the updated determined typical delay parameter satisfies the determined typical delay requirement and whether the updated determined delay variation parameter satisfies the determined delay variation requirement wherein the performing of a second call action includes charging a reduced rate for the call if;

i. the updated determined typical delay parameter does not satisfy the determined typical delay requirement;

or

ii. the updated determined delay variation parameter does not satisfy the determined delay variation requirement.

3. An apparatus for controlling the admission of a call into a packet-switched network, comprising:

a processor; and

a memory, coupled to said processor, storing a plurality of instructions adapted for execution by said processor to;

determine a delay characteristic requirement of the call, said requirement including a typical delay requirement and a delay variation requirement;

determine a delay characteristic parameter of the packet-switched network, said parameter including a typical delay parameter and a delay variation parameter;

perform a call action based at least partly upon whether the delay characteristic parameter satisfies the delay characteristic requirement, wherein said instructions for performing the call action includes instructions to admit the call to the packet-switched network if;

the determined typical delay parameter satisfies the determined typical delay requirement; and

the determined delay variation parameter satisfies the determined delay variation requirement;

update the determined typical delay parameter and the determined delay variation parameter after the call is admitted to the network; and

perform a second call action based at least partly upon whether the updated determined typical delay parameter satisfies the determined typical delay requirement and whether the updated determined delay variation parameter satisfies the determined delay variation requirement wherein said instructions for performing the second call action includes instructions to charge a reduced rate for the call if;

i. the updated determined typical delay parameter does not satisfy the determined typical delay requirement;

or

ii. the updated determined delay variation parameter does not satisfy the determined delay variation requirement.