Narrowband intercom terminal multi-hop long-distance communication method and system

Abstract

The invention provides a narrowband intercom terminal multi-hop long-distance communication method and system. The method is characterized in that a plurality of network groups are constructed, wherein each network group is internally equipped with a forwarding-type narrow-band intercom terminal and a plurality of common narrow-band intercom terminals, and the network group is externally equippedwith a command center narrow-band intercom terminal; the forwarding-type narrow-band intercom terminal forwards a call from the command center narrow-band intercom terminal, forwards calls from the forwarding-type narrow-band intercom terminals in other groups and forwards calls from the common narrow-band intercom terminals in the group to the other groups; and each forwarding-type narrow-band intercom terminal forwards the call from the command center narrow-band intercom terminal, forwards the calls from the forwarding-type narrow-band intercom terminals in other groups and forwards the calls from the common narrow-band intercom terminals in the group to the other groups The method and system greatly meet user special requirements and improve user experience; and especially under an emergency special no-public-network use condition, the method and system can enable the groups to be connected and communicated mutually and help users to establish farther-distance communication services.

Description

technical field [0001] The invention relates to the technical field of narrowband digital intercom communication, in particular to a multi-hop long-distance communication method and system for a narrowband intercom terminal. Background technique [0002] With the emphasis on the construction of public safety wireless communication in various countries, narrowband voice communication has the advantages of mature technology, large (medium) area system coverage, low network construction and maintenance costs, strong network invulnerability, low spectrum demand, and ease of use. LTE-based broadband communication can provide ultra-high data capacity support, support high-definition video, multimedia distribution, and high-speed data services, and provide efficient data support for command decision-making, benefiting from the LTE architecture, but the LTE public network does not support large-area systems Coverage, network construction and maintenance costs are relatively high, an...

AI Technical Summary

Problems solved by technology

However, the current narrowband communication distance is limited, and there is an urgent need for a technology that can improve the narrowband communication distance.

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