Wideband and narrowband integrated multi-connection trunking system and distribution method of transmission channels of same

Abstract

The invention relates to a wideband and narrowband integrated multi-connection trunking system and a distribution method of transmission channels of the same and belongs to the technical field of wireless communication. The wideband and narrowband integrated multi-connection trunking system includes a TD-LTE-based broadband trunking base station, a PDT narrowband trunking base station and n digital trunking user terminals. The digital trunking user terminals are provided with wideband receiving interfaces and narrowband receiving interfaces; the wideband receiving interface and the narrowband receiving interface of each digital trunking user terminal are connected with the TD-LTE-based broadband trunking base station and the PDT narrowband trunking base station simultaneously through a wideband digital trunking channel and a narrowband digital trunking channel respectively. The distribution method of the transmission channels of the wideband and narrowband integrated multi-connection trunking system includes that when a calling user terminal sends a calling building request to the PDT narrowband trunking base station, the PDT narrowband trunking base station and the TD-LTE-based broadband trunking base station are interlinked in a wired mode and together conduct physical layer resource distribution. The distribution method can improve the frequency spectrum use ratio in digital trunking communication, improve service experience of trunking users and achieve wideband and narrowband integration of digital trunking communication.

Description

technical field [0001] The invention belongs to the technical field of wireless communication, and in particular relates to a multi-connection trunking system with wideband and narrowband integration and a transmission channel allocation method thereof. The broadband refers to a TD-LTE-based broadband digital trunking system, and the narrowband refers to a PDT digital trunking system. Background technique [0002] LTE (Long Term Evolution, Long Term Evolution) is the long-term evolution of the UMTS (Universal Mobile Telecommunications System, Universal Mobile Communications System) technical standard formulated by 3GPP (The 3rd Generation Partnership Project, Third Generation Partnership Project). The new generation of mobile communication standard after the third generation of mobile communication. TD-LTE is an LTE system in Time Division Duplex (TDD, Time Division Duplex) mode. TD-LTE adopts Orthogonal Frequency Division Multiplexing (OFDM) and Multiple-Input Multiple-Out...

AI Technical Summary

Problems solved by technology

Limited by the carrier bandwidth and multi-user resource sharing of a single standard, it is difficult for a single standard transmission to meet the peak rate requirements of users

In addition, when each standard has a large number of users sharing bandwidth, it is difficult for a single standard transmission to meet the user's requirements for continuous download rate or streaming media transmission rate

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