Terminal of digital mobile wireless transferring system, method for adjusting transmission power thereof and system thereof

Abstract

The invention relate to the technical field of mobile communication, disclosing a terminal of a digital mobile wireless transferring system, a method for adjusting the transmission power thereof and a system thereof. The method comprises the following steps of: receiving an idle frame transmitted by a transferring table, wherein the idle frame carries the information of transferring table transmitting power; obtaining the transferring table transmitting power according to the information in the idle frame; transmitting data at appointed transmitting time slot after entering into a transmitting status; receiving a single of the transferring table and computing a received signal strength value in a reversal signal path; ensuring the transmitting power of the next frame according to the transmitting power of the transferring table and the received signal strength value when needing to continuously transmit the data; and transmitting the next frame data at the appointed transmitting time slot according to the ensured transmitting power of the next frame. The invention can lead the terminal to adaptively adjust the transmitting function thereof, reduces the power consumption, and reduces the adjacent channel interference and radiation.

Description

technical field [0001] The present invention relates to the technical field of mobile communication, more specifically, to a terminal of a digital mobile radio relay system and a method and system for adjusting transmission power thereof. Background technique [0002] The radio walkie-talkie is not only a professional wireless communication tool in mobile communication, but also a consumer tool with the characteristics of consumer products that can meet people's daily needs. It is widely used in civil, military, emergency handling and other aspects due to its advantages of low cost. In terms of design technology, radio walkie-talkies can be divided into analog walkie-talkies (also known as traditional walkie-talkies) designed using analog communication technology, and digital walkie-talkies designed using digital technology. The analog walkie-talkie modulates the stored signal to the transmission frequency of the walkie-talkie; the digital walkie-talkie digitizes the voice ...

AI Technical Summary

Problems solved by technology

[0004] In the DMR conventional transit system, the walkie-talkie needs to transmit signals at the set power, but in some application scenarios, in order to ensure the reliability of communication, it is necessary to set a larger transmission power, such as using DMR handsets in shopping malls To communicate with the farther headquarters, when the user walks into the elevator, a larger transmission power is required, but the moving distance of the handset in the shopping mall is small, and they are basically active in the mall. In most cases, the handset is very close to the relay station. Low power is sufficient for communication, but if high power transmission is still used at this time, it will undoubtedly shorten the service life of the battery, and it will also increase the interference of adjacent channels, resulting in strong radiation

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