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 the problems of lack of access information of participating stations in neighboring cells, impact of service quality by speaker terminal equipment, inability to obtain access information of participating stations in neighboring cells, etc., so as to improve service quality. Effect

Active Publication Date: 2022-04-12
CHENGDU TD TECH LTD
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  • Description
  • Claims
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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. Such as 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 ...

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Abstract

The invention provides a cell information transmission method and equipment in a narrowband digital trunking system. The method includes: after the terminal device requests the network device to become the speaker terminal device, it sends a cell reselection request to the network device, and changes from the sending state to the receiving state; the terminal device receives the network device in the receiving state. Neighboring cell information of the network device sent by broadcast. In the cell information transmission method in the narrowband digital trunking system provided by the present invention, the speaker terminal device can receive the neighboring cell information sent by the network device by sending a cell reselection request to the network device, and then perform handover, thereby improving service quality.

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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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