Unlock instant, AI-driven research and patent intelligence for your innovation.

Digital cluster system and method in A interface sharing relay circuit

A technology of digital trunking system and relay circuit, which is applied in the direction of radio/inductive link selection arrangement, time division multiplexing selection device, selection device, etc., which can solve the waste of A interface relay circuit, huge equipment investment, Large investment in long-distance links and other issues, to achieve the effect of reducing costs, reducing transmission resources, and saving numbers

Inactive Publication Date: 2008-07-09
HUAWEI TECH CO LTD
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the characteristics of trunking services, these trunk circuits are similar to wireless channels. Only one trunk circuit has both uplink and downlink data at the same time, and the others only have downlink data. Therefore, this method is obviously not suitable for A interface trunk circuits. cause waste
In particular, in the initial stage of network construction, the general operator builds one MSC in each province, so that there are long-distance links between the MSC and the local BSC. For operators, not only the equipment investment is huge, but also the additional long-distance link investment is very large

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Digital cluster system and method in A interface sharing relay circuit
  • Digital cluster system and method in A interface sharing relay circuit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] Specific embodiments of the present invention will be described in more detail below in conjunction with the accompanying drawings.

[0028] see figure 2 , is a schematic diagram of the voice path of the digital trunking system of the present invention, wherein the digital trunking system is a GT800 system. The MSC is connected to the BSC through the A interface, and the BSC is connected to the BTS (Base Transceiver Station, base transceiver station) through the Abis interface. The BSC is a two-level switching network, including a central switching network board CTN of an AM / CM (Administrator Module / Communication Module, management control module) and a modular switching network board BNET of a service module BM.

[0029] In the stage of group call initiation, the MSC sends VGCS / VBS assignment requests to all cells in the group call area according to the relevant data configuration. The message structure of the A interface is shown in the following table:

[0030] ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The present invention relates to a digital assembly system and method in A interface sharing trunk circuit. It contains in group calling originating stage, group calling MSC down sending request message A having same CIC VGCS VBS assignation to group calling regional all cell; BSC receiving interface assignation request message and sending network distribution request to AM / CM, AM / CM according to said E16 circuit number distributing same optical fiber time slot to each BM module, and only distributing downlink network; BM receiving AM / CM response also only distributing downlink network to realize optical fiber time slot to A bis port exchange; user originating uplink occupation request, BSC according to said user location cell determining A bis port HW time slot, BM distributing uplink network, exchange air interface voice to said optical fiber time slot; BM sending uplink distributing network request to AM / CM, AM / CM exchanging optical fiber time slot to E16 circuit, to realize A interface to BM connection.

Description

technical field [0001] The invention relates to a digital trunking system, in particular to a method for the digital trunking system to share a relay circuit at an A interface. Background technique [0002] According to the different characteristics of user groups, mobile communication can be divided into public mobile communication and private mobile communication. Dedicated mobile communications are mainly used internally by various professional departments, which have different frequency points, different business and network requirements. Since the 1990s, with the development of digital public mobile communications, digital private mobile communications have gradually attracted attention. [0003] In 1993, the European Union of Railways decided to use GSM (Global System for Mobilecommunications, Global System for Mobile Communications) as the basic platform for future railway mobile communication services in Europe, and ETSI (European Telecommunications Standards Instit...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H04Q7/28H04Q7/30H04Q11/04
Inventor 何允如
Owner HUAWEI TECH CO LTD