A method for effectively reducing signaling response time in dmr/mpt terminal equipment
A technology of terminal equipment and response time, which is applied in service signaling, wireless communication, electrical components, etc., and can solve problems such as cost and software complexity
Active Publication Date: 2021-06-15
FUJIAN KIRISUN ELECTRONICS
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Problems solved by technology
[0005] Aiming at the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is to provide a method for effectively reducing the signaling response time in DMR / MPT terminal equipment, so as to solve the cost problem and complicated software in the prior art degree problem
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[0023] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.
[0024] Such as figure 2 As shown, there are strict timing requirements in the MPT1327 system (the MSK digital modulation mode is used for signaling in this system, the rate is 1200 bps, and the analog FM modulation mode is used for voice). In order to meet this requirement and be compatible with the DMR digital system’s 20ms cycle information processing method for voice information, we need to pre-process the MPT1327 signaling in the CPU software used in DMR / analog dual-mode equipment products, otherwise it will be difficult Meet the timing requirements of slot Aloha, as attached image 3 shown. For example: in the SMS service, if the terminal requests to send the RQC (short data transmission request) signaling successfully, the base station will issue the AHYC (short data transmission invitation) signaling. After that, the terminal must O...
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The invention discloses a method for effectively reducing signaling response time in DMR / MPT terminal equipment. The present invention is illustrated by taking sending a short message as an example, and includes the following steps: after the terminal sends the RQC, constructs the effective information bits of the local AHYC according to the base station information received in the registration process, and generates the first packet of MSK modulation signal accordingly; The Euclidean distance between the receiving buffer data and the pre-constructed effective information bits of AHYC; if the Euclidean distance is less than the preset threshold, the terminal will no longer receive the remaining 16-bit parity bits, and will switch from receiving to transmitting state, and transmit immediately The first packet of data, and continue processing subsequent processes. The present invention utilizes general performance and low-cost CPU and is compatible with DMR digital system and MPT1327 analog cluster signaling system to process received information every 20 ms, and reduces the time of responding to base station downlink signaling in MPT1327 system, thereby satisfying MPT1327 analog cluster signaling The timing requirements of the timing Aloha mechanism in the system.
Description
technical field [0001] The invention relates to the technical field of DMR / MPT terminal equipment, in particular to a method for effectively reducing signaling response time in DMR / MPT terminal equipment. Background technique [0002] At present, many countries in the world are still using the MPT1327 analog trunking system. This system is mature and stable, and basically meets the needs of users for voice and low-speed data services. Especially in European and African countries, there are still a large number of customer groups. In use MPT1327 system. At the same time, "analog to digital" is the inevitable development of the professional mobile communication industry, and the DMR digital technology system has become the industry standard of professional mobile communication technology. In this context, the DMR digital walkie-talkies developed by various manufacturers need to be compatible with the original analog walkie-talkies. The block diagram of the DMR / MPT terminal ha...
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Login to View More IPC IPC(8): H04W4/20H04W24/02
CPCH04W4/20H04W24/02
Inventor 杨宏宋洋军姚忠邦付文良
Owner FUJIAN KIRISUN ELECTRONICS