Conventional terminal-based trunking communication method and system

Abstract

Conventional terminal-based trunking communication method: in idle state, all terminals are waiting on control channel A; any terminal in any group K initiates a call on control channel A, and transmits the group code of the group K to the base station; the base station receives And decode to obtain the block code, find an idle channel and set the idle channel as a new control channel B; the base station sends a channel transfer instruction on the original control channel A, indicating that the terminal of the non-mentioned group is transferred to the control channel B; the base station controls The device switches the control channel A to the traffic channel C; the group K calls on the traffic channel C; after the traffic channel C calls, the base station starts to regularly broadcast the channel transfer instruction on the traffic channel C to allow all terminals to transfer to control channel B. In the method, a software module is respectively added in a base station and a terminal of a low-cost conventional communication system to realize a cluster function, thereby improving the utilization rate of wireless channel resources and equipment.

Description

【Technical field】 [0001] The invention relates to a wireless intercom system in the field of electrical communication, in particular to a conventional terminal-based trunking communication method and system. 【Background technique】 [0002] Explanation of name: [0003] CTCSS (Continuous Tone Controlled Squelch System), continuous voice control squelch system, also called analog subtone; [0004] CDCSS (Continuous Digital Controlled Squelch System), continuous digital control squelch system, also called digital subtone; [0005] MSK (Minimum Shift Keying), minimum frequency shift keying, is a digital modulation method applied in the field of mobile communication; [0006] CCI (Control Channel Identifier), control channel identifier; [0007] BCI (Busy Channel Identifier), busy channel identifier; [0008] GTC (Go To Channel), channel switching; [0009] PTT (Push To Talk), that is, push to talk, also refers to the PTT button on the walkie-talkie. [0010] The traditiona...

AI Technical Summary

Problems solved by technology

[0012] The existing wireless communication system that can realize the trunking function can realize flexible grouping and channel multiplexing, but the technology is complex and expensive

Conventional wireless communication systems in the prior art have fixed frequency points, and when multiple frequency points are grouped according to frequency points, flexible grouping and channel multiplexing cannot be realized; if the conventional system is used to realize the trunking function, it is generally necessary to set up multiple sets of conventional relay stations to realize multiple Frequency point forwarding, this method is more costly

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