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A Narrowband Digital Trunk Terminal Collaborative Information Sharing Method

A technology of digital trunking and information sharing, applied in the field of wireless communication, can solve the problems of sharing collaborative information, unable to realize real-time of multiple terminals, etc., and achieve the effect of reducing occupation time, shortening transmission cycle, and avoiding business collision

Active Publication Date: 2021-04-30
HEBEI FAREAST COMM SYST ENG
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Problems solved by technology

[0004] In order to solve the problem that the existing narrowband digital trunking standard services cannot realize real-time sharing of collaborative information by multiple terminals according to a specified time period, the present invention provides a method for sharing cooperative information of narrowband digital trunking terminals, which combines system pull-up and dedicated data Technologies such as channel reporting and broadcast delivery can realize real-time sharing of collaborative information among multiple terminals

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  • A Narrowband Digital Trunk Terminal Collaborative Information Sharing Method
  • A Narrowband Digital Trunk Terminal Collaborative Information Sharing Method

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Embodiment Construction

[0027] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0028] A kind of narrowband digital trunking terminal cooperation information sharing method, it comprises the following steps:

[0029] (1) The dispatching terminal selects one or more user terminals as the destination terminal, and then initiates a collaborative information pull-up request to the system; each user terminal has a unique tag number, personal number and personal address, and the system and user terminals both retain the tag number Correspondence table with personal number;

[0030] (2) After receiving the pull-up request initiated by the dispatching terminal, the system sorts the destination terminals, and encapsulates the personal addresses of the destination terminals arranged in order into a pull-up signaling;

[0031] (3) The system sends the pull-up signaling to each user terminal in sequence;

[0032] (4) After receiving the pull-up si...

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Abstract

The invention discloses a method for sharing cooperative information of narrowband digital trunking terminals, which belongs to the technical field of wireless communication. The present invention adopts the pull-up method to control the sequence of the destination terminal sending the coordination information, which can effectively avoid the service collision caused by multiple terminals sending the coordination information at the same time, and ensure that the terminals can successfully send the coordination information. The present invention has good expansibility and stability, can effectively avoid service collision caused by multiple terminals sending cooperative information at the same time, and ensures that terminals can successfully send cooperative information. At the same time, the present invention can greatly reduce the amount of signaling that needs to be sent, shorten the sending cycle to a large extent, and reduce the occupation time of the control channel. In the same time, it can support more terminals to share cooperative information and ensure that the cooperative Services such as voice calls during the information sharing process can be initiated normally. This patent is funded by the National Key Research and Development Program, project number 2017YFC0821900.

Description

technical field [0001] The invention belongs to the technical field of wireless communication, and in particular relates to a method for sharing cooperative information of narrowband digital trunking terminals. Background technique [0002] The services defined in the narrowband digital trunking communication standards represented by PDT (Police Digital Trunking, police digital trunking terminal) and TETRA (Terrestrial Trunked Radio, land trunking radio) that can realize information interaction between terminals are mainly text Short message service, the terminal uses the control channel to transmit text short messages. [0003] In actual use, when multiple terminals work together, they need to share collaborative information in real time. The collaborative information includes the terminal's personal number, longitude, latitude, speed, and direction. Use short text messages to share collaborative information. One short text message can carry all the content of collaborativ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W4/06H04W4/08
CPCH04W4/06H04W4/08
Inventor 伦立宝康志杰王嘉许聪聪张万鹏赵志强魏永利李怀禄白清韩思远苑凯文冯云聪王菁怡庞欢路雪森
Owner HEBEI FAREAST COMM SYST ENG
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