Narrowband ad hoc network communication control method and related equipment

A communication control and ad hoc network technology, applied in the field of communication, can solve problems such as the inability of devices to communicate, affect communication efficiency and reliability, reduce device compatibility, etc., achieve reliable and efficient transmission, and improve reliability and convenience.

Active Publication Date: 2021-07-02
HYTERA COMM CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the application of the ad hoc link extended coverage system including multiple wireless link transmission channels, because the repeater / base station cannot transmit signals in both time slots, it can only transmit signals in a single time slot in TDMA mode, which will cause Unable to carry all CACH information, thereby affecting communication efficiency and reliability
[0004] In this regard, the prior art usually adjusts the above-mentioned communication standards, that is, adding CACH information to other places in the valid data frame to ensure the transmission of all CACH information. However, different manufacturers may adjust the communication standards in different ways, which will lead to Equipment produced by various manufacturers cannot communicate with each other, which greatly reduces equipment compatibility

Method used

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  • Narrowband ad hoc network communication control method and related equipment
  • Narrowband ad hoc network communication control method and related equipment
  • Narrowband ad hoc network communication control method and related equipment

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Embodiment Construction

[0054] The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0055] For the description of the background technology, without changing the communication protocol, you can choose to send only part of the CACH (Common Announcement Channel, public broadcast channel) information, refer to figure 1 , For example, in a time slot with a length of 30ms, CACH information of 1ms can be inserted in the guard interval between two adjacent time slots with a length of 2.5ms to indicate the time slot, so that the effective data duration becomes 28.5ms, and t...

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Abstract

The invention provides a narrowband ad hoc network communication control method and related equipment, and the method comprises the steps: receiving a service signal transmitted by an uplink time slot of an uplink carrier frequency point by transit equipment, and synchronizing the service signal according to a frequency point time slot synchronization rule configured for synchronizing a synchronization frame type of the service signal; and determining a downlink wave frequency point, a downlink time slot different from the uplink time slot and a TDMA frame synchronization pattern, thereby realizing framing forwarding of the service signal, i.e., multiple times of synchronous forwarding of the service signal through different time slots at the same or different carrier frequency points, so as to fully utilize the time slot resource of each carrier frequency point and improve the transmission efficiency of the service signal. According to the method and the device, the transmitted target synchronization frame is ensured to carry the time slot information in the CACH, reliable and efficient transmission of service signals is realized, communication standards do not need to be adjusted, equipment produced by manufacturers can be ensured to be intercommunicated and compatible, and the reliability and the convenience of narrowband ad hoc network communication are improved.

Description

technical field [0001] The present application mainly relates to the technical field of communication, and more specifically relates to a narrowband ad hoc network communication control method and related equipment. Background technique [0002] In current narrowband communication applications, communication is usually based on the PDT (Police Digital Trunking) / DMR (Digital Mobile Radio, digital mobile radio) standard communication, and these two communication standards are time-division with double time slots. Multiple access (Time Division Multiple Access, TDMA) frame structure, in the communication process in the transfer mode, the communication between communication devices can be forwarded through the intermediate station or base station, and the forwarding signal (ie downlink signal) of the relay station or base station is usually On the basis of the communication content of the communication device, Common Announcement Channel (CACH) information will be added. [000...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04J3/06H04W56/00H04W84/18
CPCH04J3/0652H04W56/001H04W84/18Y02D30/70
Inventor 黄妮罗正华张东东张颖哲
Owner HYTERA COMM CORP
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