Trunked service implementation method in digital trunking communication system and trunked user terminal

Abstract

The invention discloses a trunked service implementation method, comprising: a trunked user terminal detects whether dispatching information of a TPCCH (trunked paging control channel) exists periodically; if so, a TB (transmission block) containing information borne by the TPCCH is searched, and the TB is decoded to acquire the information borne by the TPCCH; a user terminal detects the PDCCH (physical downlink control channel) in each TTI (transmission time interval), searches the TB of the borne information, successfully decodes as well as configures and establishes a service plane channel; a calling trunked user terminal adopts the established service plane channel to initiate a conservation; and a called trunked user terminal detects the PDCCH in the TTI, searches the TB of the information borne by a TTCH (trunked traffic channel), and decodes the searched TB. The invention also discloses a trunked user terminal. After the embodiment of the invention is applied, the time for establishing a calling is shortened, and the resource utilization rate is improved.

Description

technical field [0001] The present invention relates to mobile communication technology, in particular to a method for implementing trunking services in a digital trunking communication system based on Time Division-Long Term Evolution (TD-LTE, Time Division-Long Term Evolution) technology and a trunking user terminal. Background technique [0002] Due to its unique characteristics of dispatching, group calling and fast calling, the digital trunking communication system has played 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. Existing digital trunking communication systems mainly include: Terrestrial Trunked Radio (TETRA, Terrestrial Trunked Radio) system, Integrated Digital Enhanced Networks (iDEN, Integrated Digital Enhanced Networks) system, Open Trunking Architecture (GoTa, Global Open Trunking Architec...

AI Technical Summary

Problems solved by technology

Since the existing digital trunking communication systems are mostly implemented based on Global System for Mobile Communications (GSM, Global System for Mobile Communications) or Code Division Multiple Access (CDMA, Code Division Multiple Access) technology, base stations need to be controlled uniformly by base station controllers, which cannot communicate with the core network Direct communication, so there are more signaling interactions during the establishment of trunking services such as group call service and broadcast call service, which in turn leads to prolonged call establishment time

In addition, in the existing digital trunking communication system, trunking services are all carried in the circuit domain, so the sharing of service channels cannot be realized, resulting in reduced resource utilization

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