United States Patent [19] [li] Patent Number: 5,654,969
Wilhelmsson [45] Date of Patent: Aug. 5, 1997
[54] ARRANGEMENT IN A COMMUNICATIONS NETWORK
[75] Inventor: Lennart Wilhelmsson, Haninge,
Sweden
[73] Assignee: Telia Research AB, Farsta, Sweden
[21] Appl. No.: 454,191
[22] PCT Filed: Dec. IS, 1993
[86] PCT No.: PCT/SE93/01069
§ 371 Date: Aug. 11,1995
§ 102(e) Date: Aug. 11,1995 [87] PCT Pub. No.: W094/14255
PCT Pub. Date: Jun. 23, 1994
[30] Foreign Application Priority Data
Dec. 17, 1992 [SE] Sweden 9203796
[51] Int CI.6 H04J 3/02
[52] U.S. CI 370/460; 370/909
[58] Field of Search 370/85.1, 85.4,
370/85.5, 94.1, 94.2, 94.3, 60, 60.1, 442, 443, 444. 450, 451, 452, 458^160, 465-470, 477, 479, 489, 904, 906, 908, 909, 910, 911, 337, 347, 404, 401^103, 424, 423, 469, 502, 504, 508, 512; 340/825.02, 825.05;
375/355, 356
