公开(公告)号：EP1013114A2

公开(公告)日：2000-06-28

申请号：EP98939872.2

申请日：1998-08-03

Applicant: NORTEL NETWORKS CORPORATION

Inventor： ERNAM, Hakan ,  XU, Jim ,  REECE, Christopher, S.

IPC: H04Q7/22

CPC classification number: H04W28/08 ,  H04W8/06 ,  H04W88/14 ,  H04W92/045 ,  H04W92/14 ,  H04W92/24

Abstract: A wireless communication system (100) according to the present invention assigns mobile units (38, 136, 140) to one of a plurality of mobile switching centers (104, 106, 108) to equalize loading. A dispatching switch (102) couples the base station system to the mobile switching centers (104, 106, 108) and performs mobile unit assignments. The dispatching switch (102) determines the loading of each one of the mobile switching centers (104, 106, 108) and assigns mobile unit to a mobile switching center (104, 106, 108), the 'serving' mobile switching center. Once a mobile switching center (104, 106, 108) is determined and during subsequent calls, the dispatching switch (102) establishes a transparent path between the base station controller (110, 112, 114, 116) servicing the call and the serving mobile switching center (104, 106, 108). In another construction, each of the base station controllers (110, 112, 114, 116) and each of the mobile switching centers (104, 106, 108) includes additional equipment which performs a portion of the operations of the dispatching switch (102). The network may be dissimilar to a conventional data structure supported by the wireless communication system (100).

公开(公告)号：EP0937369A1

公开(公告)日：1999-08-25

申请号：EP98937695.0

申请日：1998-08-14

Applicant: NORTEL NETWORKS CORPORATION

Inventor： HO, Joseph, S., M. ,  XU, Jim

IPC: H04W72 ,  H04W76

CPC classification number: H04W76/10 ,  H04W72/00 ,  H04W84/042

Abstract: A method is illustrated for reducing the call setup time of high priority calls such as voice or high speed user generated data without unduly wasting RF frequency resources on non priority calls such as short message calls. This is accomplished by ascertaining the call priority at the base station controller (BSC) level in a GSM system soon after call initiation and immediately changing the channel assignment for use by the remaining signalling type messages to a different operational speed where appropriate. The concept is further extended by supplying the call priority data to a called party's BSC such that all signalling messages after initial contact can be at the operational speed appropriate to the priority of the call.