Terminal, system and communication method capable of adaptively switching wideband and narrowband communication

Abstract

The invention provides a terminal and system capable of adaptively switching wideband and narrowband communication, and a communication method thereof. The terminal comprises an adaptive switching module, a control module, a power supply module, a narrowband communication module and a wideband communication module; the control module separately drives and controls the adaptive switching module, the narrowband communication module and the wideband communication module; the system comprises multiple terminals for adaptively switching wideband and narrowband communication, a narrowband frequencypoint distribution module, multiple narrowband channels and one or more wideband channels; the adaptive switching module is controlled through the method in the invention; switching of narrowband communication or wideband communication is adaptively carried out according to the size of data to be sent; the bandwidth utilization rate is increased; the narrowband delay phenomenon due to relatively big data or the bandwidth waste phenomenon due to relatively small data can be improved; multiple frequency points are set; when one terminal is communicated with multiple other terminals at the same time, influence on communication with another terminal due to occupation of one channel can be avoided; therefore, the communication efficiency is increased; and the channel utilization rate is increased.

Description

technical field [0001] The invention relates to the technical field of wireless communication broadband and narrowband fusion, in particular to a communication terminal, system and communication method capable of adaptively switching between broadband and narrowband. Background technique [0002] In the case of dealing with some natural disasters, public safety incidents and military drills, the operator needs to communicate with the command department. The command department needs to understand the actual situation of the operator, and the operator also needs to understand the actual command of the command department. However, the existing network mainly communicates in three ways: one is narrowband communication through trunking, which has a small bandwidth and can only transmit voice and a small amount of data; the other is broadband transmission similar or identical to the existing LTE network , can transmit high-definition video signals and a large amount of data; one i...

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Problems solved by technology

However, the existing network mainly communicates in three ways: one is narrowband communication through trunking, which has a small bandwidth and can only transmit voice and a small amount of data; the other is broadband transmission similar or identical to the existing LTE network , can transmit high-definition video signals and a large amount of data; one is the way of wide-narrowband fusion, in which wide-narrowband communication is carried out, although the bandwidth utilization rate has been improved to a certain extent, but in the existing wide-narrowband Still can only use a fixed transmission method, narrowband transmission or broadband transmission, can not be randomly selected, if you only need to transmit small data now, but the scheduling result at this time is broadband communication, bandwidth will still be wasted, if you need to transmit a large amount of data now data, but the scheduling result is narrowband, which will still bring a large delay

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