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

Method for implementing conventional and cluster communication system network connecting based on GSM/CDMA

A trunking communication and CDMA technology, applied in the field of communication, can solve problems such as lack of wired resources, difficulty in optimizing the network, high one-time investment costs, etc., and achieve the effect of saving costs

Inactive Publication Date: 2009-07-08
北京市万格数码通讯科技有限公司
View PDF0 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] 2) The one-time investment cost is too high, and there will be a long-term payment burden if the wired link is leased
[0007] 3) There are often no wired resources in the base stations of conventional communication systems, so it is difficult to optimize the network
[0008] 4) In an emergency situation, an emergency communication command vehicle is required, and it can only rely on wireless links to communicate with the command center

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
  • Method for implementing conventional and cluster communication system network connecting based on GSM/CDMA
  • Method for implementing conventional and cluster communication system network connecting based on GSM/CDMA
  • Method for implementing conventional and cluster communication system network connecting based on GSM/CDMA

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0074] Example 1: Group call routine

[0075] 1) The trunking user 200 initiates a call to a regular user, usually a special group, such as 900.

[0076] 2) After the cluster controller judges that the call destination is a regular user, it notifies the cluster base station switch to automatically call 13501234567.

[0077] 3) Through the GSM or CDMA network, the network device immediately picks up the phone after detecting the call, and gets through the voice link to the conventional transfer station, so that the trunking user and the conventional user can talk.

[0078] The specific workflow is as follows (see image 3 ):

[0079] A. After the GSM / CDMA-SIM card detects the trunking call, it transmits the call information to the MCU control module through the GSM / CDMA interface module;

[0080] B. The DTMF transceiver module is notified by the MCU control module, and the ringing tone is sent to notify the conventional handset and the network device speaker;

[0081] C. Du...

Embodiment 2

[0087] Embodiment 2: conventional call cluster (see Figure 4 )

[0088] 1) The user dials the trunked base station wired access phone (such as 51288221) through the mobile phone.

[0089] 2) Through the DTMF transceiver module, the MCU control module collects the call number 51288221 initiated by the conventional mobile station, then sends an off-hook command to notify the GSM / CDMA interface module to off-hook, and sends a call command instruction of 51288221 to be sent by the GSM / CDMA-SIM card Dial 51288221, and display the corresponding call status and outgoing number on the LCD display module, and wait for the GSM / CDMA interface module to answer successfully.

[0090] 3) When the cluster base station switch detects an incoming call, it will automatically go off-hook and play a prompt, "Please dial the cluster number".

[0091] 4) Regular users key in the target cluster number such as 200 according to the prompt tone.

[0092] 5) The cluster base station switch receives ...

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 invention discloses a method for realizing common and trunking communication system networking based on GSM / CDMA, wherein, a common networking device is designed first which is provided with an MCU control module, a PC communication module, a host computer control software module, a DTMF transceiver module, a GSM / CDMA interface module, a voice link module, a conversional station interface communication module, an EEPROM memory module, an LCD display module, an I / O port extension module, a voice detection module, and a keyboard input module; the common networking device is used for networking current common communication system and the trunking communication system through the GSM / CDMA link; then, a common calling out and a trunking communication station calling in are detected by a GSM / CDMA-SIM card of the GSM / CDMA network; when the common calling out or the trunking communication station calling in is detected, a response handling program is entered correspondingly; a conversation station is set up and conversation state is displayed in due time; a conversation is established.

Description

technical field [0001] The invention belongs to the field of communication, is mainly applied to public security communication systems, and in particular relates to a method for realizing networking of conventional and cluster communication systems based on GSM / CDMA. Background technique [0002] Trunking communication system is a dedicated dispatching mobile communication system that shares wireless channels. It adopts multi-channel sharing and dynamic channel allocation technology in modern communication, and has dispatching functions such as individual call, group call, and broadcast call. Its characteristics are call It is fast to set up, users have different priorities, call time is limited, and it has the function of remote death and resurrection, which is very suitable for the public security system. At present, the public security departments of various cities have built 350M trunking communication systems. [0003] The conventional communication system is a single-c...

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 Applications(China)
IPC IPC(8): H04W84/08H04W92/02
Inventor 梁燕生许赤张扬彭辉
Owner 北京市万格数码通讯科技有限公司