US005682419A
United States Patent [19] [H] Patent Number: 5,682,419
Grube et al. [45] Date of Patent: *Oct. 28, 1997
[54] METHOD AND APPARATUS FOR
PROVIDING INFRASTRUCTURE CALL
SUPPORT
[76] Inventors: Gary W. Grube, 561 Chateaux Bourne Dr., Barrington, LI. 60010; Timothy W. Markison, 7506 Mifflin Kenedy Terr., Austin, Tex. 78749; Matthew A. Pendleton, 503 Bayberry Ct., Cedar Park, Tex. 78613; Mathew A. Rybicki, 10201 Kabar Tr., Austin, Tex. 78759
[ * ] Notice: The term of this patent shall not extend beyond the expiration date of Pat. No. 5,495,483.
[21] Appl. No.: 378,852
[22] Filed: Jan. 26, 1995
[51] Int CI.6 H04Q 7/22; H04Q 7/24
H04Q 7/38
[52] U.S. CI 379/60; 379/58; 379/59:
379/60; 370/77; 370/79; 455/33.1; 455/34.1
[58] Field of Search 379/58. 59, 60:
370/77, 79; 455/33.1, 34.1
[56] References Cited
U.S. PATENT DOCUMENTS
5,495,483 2/1996 Grube etal 370/79
5,521,906 5/1996 Grube etal 370/76
5,533,008 7/1996 Grube etal 370/79
5,539,777 7/1996 Grube etal 370/76
In a communication system that employs DMT technology to couple a primary site (102) to a plurality of secondary sites (104-108), call support infrastructure is obtained as follows. Having received a call request, the primary site (102) identifies targeted subscribers and target secondary sites, i.e., the secondary sites having a targeted subscriber affiliated therewith. Next, the rjrimary site determines a call bit loading table from the site bit loading tables of the target secondary sites. Having done this, the primary site selects, based on bandwidth requirements of the call, at least one carrier channel to provide the infrastructure support for the call.
24 Claims, 49 Drawing Sheets
