Method for realizing communication among a plurality of subnets covered by one physical mobile switching center

Abstract

The present invention discloses a method for implementing communications between multiple subnets covered by one physical Mobile Switching Center (MSC), the method includes the steps of: mapping one physical MSC to multiple logical MSCs, i.e. multiple virtual MSCs, and assigning a virtual MSC number to each virtual MSC, and setting relationship(s) between location area(s) covered by the virtual MSC and the virtual MSC number of each virtual MSC; transmitting location information of a terminal with the virtual MSC number during communications to implement communications among multiple subnets. During communication, since the terminal location is transmitted according to the virtual MSC number, it is possible to differentiate the terminals located in different subnets covered by a physical MSC, therefore the roaming and handover of the terminal between the subnets can be implemented; and the roaming limitation also can be implemented through the MSC List and VLR List.

Description

technical field [0001] The invention relates to the field of mobile communication, in particular to a method for realizing communication between multiple subnets covered by a physical mobile switching center. Background technique [0002] In the networking of the mobile communication system, the division and network setting of the local network are generally determined according to the geographical location and user capacity. In sparsely populated areas, it is suitable to build a large-scale local network. Several small local networks can be set up in a large-scale local network, and connected nearby, which solves the problem of wide coverage. Wherein, the large local network refers to the entire network within the coverage of a physical mobile switching center (MSC), and the small local network refers to subnets divided by geographical location. [0003] A large local network consists of base stations, base station controllers, mobile switching centers, visitor location re...

AI Technical Summary

Problems solved by technology

[0006] The problem caused by this is that in a network covered by a physical MSC, some services cannot be divided into subnets, and many services are difficult to carry out.

[0007] For example: in image 3 It is actually a long-distance call from a user in location area 2 to a user in location area 3, but it cannot be accurately judged by using an MSC number, which will cause billing errors, and traffic statistics cannot determine that it is a call from location area 2 to location area 3 For another example, if you want to realize that users can only communicate within location area 2 and cannot roam to other location areas, since there is only one MSC / VLR number, it is difficult to use the VLR list to implement this roaming restriction

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