Cell information transmission method and device in narrowband digital trunking system

A digital trunking system and information transmission technology, applied in the field of communication, can solve problems such as the inability to obtain the access information of the participating stations in the neighboring area, the lack of access information of the participating stations in the adjacent area, and the influence of the speaker terminal equipment on the quality of service, etc.

Active Publication Date: 2020-02-21
CHENGDU TD TECH LTD
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AI Technical Summary

Problems solved by technology

Since the speaker terminal device cannot perform downlink reception when it is transmitting data all the time, it cannot obtain the access information of the participating stations in the neighboring cell
In this way, when the channel quality of the speaker terminal device cannot meet the service requirements, the speaker terminal device cannot perform handover due to the lack of access information of neighboring cell participating stations, which affects the service quality

Method used

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  • Cell information transmission method and device in narrowband digital trunking system
  • Cell information transmission method and device in narrowband digital trunking system
  • Cell information transmission method and device in narrowband digital trunking system

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Embodiment Construction

[0032] figure 1 It is a structural schematic diagram of the narrowband digital trunking system involved in the present invention. like figure 1 As shown, the narrowband digital trunking system may include a terminal device 100 and a network device 200 . The present invention does not limit the type and quantity of the terminal device 100 and the network device 200 . Uplink and downlink communication can be performed between the terminal device 100 and the network device 200 through an air interface. Wherein, the terminal device 100 may be divided into a speaker terminal device and a listening terminal device. The communication state of the speaking terminal device is a sending state, and data can be sent to the network device 200 . The communication state of the listening terminal device is a receiving state, and can receive data sent by the network device 200 . In order to avoid voice collision, the narrowband digital trunking system stipulates that the PTT (intercom key...

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Abstract

The invention provides a cell information transmission method and device in a narrowband digital trunking system. The cell information transmission method comprises the following steps: terminal equipment sends a cell reselection request to network equipment after requesting the network equipment to become main speaking terminal equipment, and is converted into a receiving state from a sending state; and the terminal equipment receives the neighbor cell information of the network equipment broadcasted and sent by the network equipment in a receiving state. According to the cell information transmission method in the narrowband digital trunking system provided by the invention, the main speaking terminal equipment can receive the neighbor cell information sent by the network equipment by sending the cell reselection request to the network equipment, so that cell-crossing switching can be carried out, and the service quality is improved.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a cell information transmission method and equipment in a narrowband digital trunking system. Background technique [0002] The Professional Digital Trunking (PDT) standard is a narrowband trunking communication standard, which has the advantages of high spectrum utilization, large-scale networking, security, scalability and backward compatibility, and effectively solves various emergency communication problems. The problem of network convergence communication. [0003] The PDT system supports voice group calls. A voice group call refers to a point-to-multipoint voice call initiated by one terminal device (or called a mobile station or a dispatching station) and participated by multiple terminal devices. The terminal equipment in the PDT system is usually in a half-duplex mode, and is generally configured in an aligned mode between the base station and the terminal equip...

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Application Information

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IPC IPC(8): H04W4/06H04W36/00
CPCH04W4/06H04W36/0061H04W36/0094
Inventor 张禹强徐绍君黄伟
Owner CHENGDU TD TECH LTD
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