Method for quickly setting up group calling in digital trunking communication system

A digital trunking communication and trunking call technology, which is applied in the field of communication, can solve the problems of long group call connection time, difficult connection time to meet the call establishment time of the trunking communication system, and fast communication of trunking users, so as to reduce the connection time, Meet the effect of fast communication

Active Publication Date: 2011-07-27
POTEVIO INFORMATION TECH
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  • Summary
  • Abstract
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Problems solved by technology

Among them, the shortest paging cycle for paging the called terminal is 320ms. In addition to the signaling interaction time for connection establishment, the connection time between the calling terminal and the called terminal is difficult to

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  • Method for quickly setting up group calling in digital trunking communication system
  • Method for quickly setting up group calling in digital trunking communication system
  • Method for quickly setting up group calling in digital trunking communication system

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Embodiment Construction

[0023] In order to make the object, technical solution and advantages of the present invention more clearly, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0024] In the embodiment of the present invention, the calling terminal sends an uplink NAS transmission request to the MME / SGW through the eNB where it is located; the MME / SGW sends service establishment requests to all eNBs in the group simultaneously Next, the MME / SGW sends a cluster E-RAB establishment request to its own eNB; when the calling terminal is in the RRC_IDLE state, after the RRC connection is established, the MME / SGW sends an initial context establishment request to its own eNB. After the calling terminal re-establishes the RRC bearer with its own eNB, it sends a response to the MME / SGW, and all eNBs in the group broadcast the cluster paging message to all terminals in the group through the TPCCH channel, and then All ...

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Abstract

The invention provides a method for quickly setting up group calling in a digital trunking communication system based on time division long term evolution (TD-LTE). The method comprises the following steps that: a calling terminal sends a trunking calling request to a mobile management entity/signal gateway (MME/SGW) through an evolved node base (eNB) where the calling terminal is positioned, namely a calling terminal eNB; the MME/SGW informs the calling terminal eNB of starting service setup and all eNBs which are involved in the group calling and comprise the calling terminal eNB of starting trunking context setup; the calling terminal and the calling terminal eNB reset up a radio resource control support and send a response to the MME/SGW; all the eNBs controls a TPCCH channel to broadcast a trunking paging message to group calling terminals in all the eNBs by transmission power; all the eNBs send a response to the MME/SGW; and the MME transmits a speak right inform to all the eNBs. By using the embodiment of the invention, the succession time of group calling is shortened, so the requirement of quick communication of a trunked user can be met.

Description

technical field [0001] The present invention relates to the technical field of communication, more specifically, to a method for quickly establishing a group call in a digital trunking communication system based on Time Division Duplex Long Term Evolution (TD-LTE). Background technique [0002] The digital trunking communication system has the characteristics of dispatching, group calling and fast calling, and plays a huge role in the field of professional communication. Since the mid-1990s, the digital trunking communication system has risen in the world, has been widely used, and has achieved good economic and social benefits. Among the existing international digital trunking technology systems, TETRA and iDEN systems are the most widely used, and my country has also approved the TETRA and iDEN technology systems as the recommended standards for the trunking industry in my country. At the same time, my country has independently developed GoTa based on CDMA technology and ...

Claims

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Application Information

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IPC IPC(8): H04W4/08H04W4/10H04W84/08
Inventor 喻炜李瑞林陈永张瀚峰赵顾良蒋纯波汤素锋
Owner POTEVIO INFORMATION TECH
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