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A method for establishing a group call service based on a td-lte broadband trunking system

A technology for service establishment and broadband trunking, which is applied in broadcast service distribution, connection management, electrical components, etc., can solve the problems of sensitive establishment delays and failure to meet the requirements of trunking system establishment delays, and achieve simple implementation and meet trunking call requirements Establishment delay requirements, the effect of reducing call establishment delay

Inactive Publication Date: 2018-09-25
POTEVIO INFORMATION TECH CO LTD
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Problems solved by technology

[0004] However, since the trunking system is a private network system for the government and industry, it mainly provides command and dispatch functions, and can be used in scenarios such as emergency rescue, so it is sensitive to the establishment delay of group services such as group calls and multicast short messages. The group call establishment delay is less than 300ms, so the call establishment process and mechanism based on the SIP protocol of TD-LTE may not be able to meet the call establishment delay requirements of the trunking system

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  • A method for establishing a group call service based on a td-lte broadband trunking system
  • A method for establishing a group call service based on a td-lte broadband trunking system
  • A method for establishing a group call service based on a td-lte broadband trunking system

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[0026] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0027] Such as figure 1 As shown, the TD-LTE broadband trunking system mainly includes terminals, access network, core network and so on. Terminal, access network, core network, the terminal is connected to the access network through wired or wireless, and the access network is connected to the core network.

[0028] Terminals include trunking terminals and common user terminals (standard broadband mobile communication system terminals). Terminals mainly provide users with voice, data, image, video and other services in different application scenarios. The trunking terminal needs to expand the trunking service function on the basis of the common user terminal, and suppor...

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Abstract

The invention discloses a group service establishment method based on multiple MMEs and multiple x-GW network element devices in a TD-LTE broadband trunking system. The base station equipment and the mobility management entity where the calling terminal is located send the trunk call data to the gateway equipment involved in the downlink shared bearer, and the gateway equipment involved in the downlink shared bearer passes through the gateway equipment where the calling terminal is located. The multicast IP address and port number map the trunking call data to the corresponding downlink shared bearer and transmit it to the called terminal. The group service establishment method proposed by the present invention can meet the group service establishment requirement when there are multiple network element devices of the same core network in actual network construction, and can meet the group call establishment delay requirement.

Description

technical field [0001] The invention relates to a method for establishing a group call service, in particular to a method for establishing a group call service based on a TD-LTE broadband trunking system, and belongs to the technical field of mobile communication. Background technique [0002] The trunking system is a dedicated wireless communication system developed to meet the needs of industry command and dispatch, and is oriented to a variety of industry applications. It has a wide range of application markets in public security, transportation, public utilities, petrochemicals, industry and commerce, and the military. Most of the currently widely used trunking systems are based on 2G narrowband wireless communication technology and mainly provide voice dispatching services, including: dedicated trunking systems specially developed to meet the needs of trunking command and dispatch, such as TETRA, iDEN, etc., and public mobile communication systems The cluster system dev...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W4/08H04W12/06H04W76/11
Inventor 许玮蔡杰王佳佳李晓华
Owner POTEVIO INFORMATION TECH CO LTD
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