CN-122028046-A - Voice management method and device of cluster system

CN122028046ACN 122028046 ACN122028046 ACN 122028046ACN-122028046-A

Abstract

The invention relates to the technical field of wireless communication, and provides a voice management method and device of a trunking system. The method and the device for generating the preamble message carry the dynamic configuration information through the gateway, send the preamble message to the terminal, synchronize the terminal with the gateway according to the dynamic configuration information, and receive the downlink message corresponding to the downlink voice broadcast according to the dynamic configuration information, thereby solving the problems of limited voice listening capacity of a single base station and low efficiency of a gateway synchronization mechanism in the prior art trunking system.

Inventors

WANG ZHENG
LI GUANGJIE

Assignees

重庆御芯微信息技术有限公司

Dates

Publication Date: 20260512
Application Date: 20260114

Claims (10)

1. A method for voice management of a clustered system, comprising: The gateway generates a preamble message carrying dynamic configuration information and sends the preamble message to the terminal; The terminal synchronizes with the gateway according to the dynamic configuration information; And the terminal receives the downlink message corresponding to the downlink voice broadcast according to the dynamic configuration information.
2. The voice management method of a cluster system according to claim 1, wherein the dynamic configuration information includes channel information and authority information; the method comprises the following steps: The terminal analyzes the preamble message to obtain the channel information and the authority information; Performing authentication on the terminal using the authority information; and setting a current channel for the authenticated terminal by using the channel information.
3. The voice management method of a trunking system according to claim 2, wherein the dynamic configuration information further includes slot information; the method comprises the following steps: the gateway sends downlink voice broadcast; and the terminal receives the downlink message from the downlink voice broadcast in the sending time slot.
4. A method of voice management of a clustered system according to claim 3, the method further comprising: The terminal sends an uplink authentication message to the gateway in an idle time slot according to the time slot information; the gateway allocates a special uplink time slot for the terminal and sends an authentication response message to the terminal; and the terminal receives the authentication response message and sends an uplink voice message to the gateway in the special uplink time slot.
5. The method for voice management of a clustered system of claim 4 wherein the method further comprises: The gateway performs mixed processing on all the received uplink voice messages to obtain a message to be broadcasted; and broadcasting the message to be broadcasted to all terminals.
6. The method for voice management of a cluster system of claim 1, further comprising: the method comprises the steps of obtaining actual distances between a gateway and a plurality of terminals corresponding to the gateway, determining the terminal with the difference between the actual distance and the maximum effective distance smaller than a first preset value as a node to be segmented, determining the terminal with the difference between the actual distance and a high-quality critical distance smaller than a second preset value as a relay node, and attributing the node to be segmented to the corresponding relay node according to the distance between the node to be segmented and the relay node so as to determine a sub-node corresponding to the relay node; The gateway generates a preamble message carrying identifiers of the relay node and the child nodes thereof, and sends the preamble message to a terminal; The relay node analyzes the preamble message, and when the preamble message carries the identifier of the relay node and the identifier of the relay node, the relay node does not play the current voice corresponding to the downlink message, and forwards the current voice to the corresponding relay node, so that the relay node can conveniently receive and play the current voice.
7. The method for voice management of a clustered system of claim 6 wherein the method further comprises: The gateway determines the current distance between the gateway and the terminal according to the current GPS positioning reported by each terminal; And when the difference between the current distances between the relay node and the sub-nodes is larger than a third preset value, determining the sub-nodes as new sub-nodes among other relay nodes according to the distances between the sub-nodes and other relay nodes.
8. The method for voice management of a clustered system of claim 6 wherein the method further comprises: the gateway obtains the current GPS positioning and the special effective distance of each terminal; according to the current GPS positioning, when the difference between the current distance between the relay node and the sub-node thereof and the corresponding special effective distance is smaller than a fourth preset value, determining the sub-node as a marking node; Determining a selectable relay set from other relay nodes according to whether the difference between the distance between the other relay nodes and the marking node and the special effective distance is smaller than a fourth preset value; and attributing the marked nodes to the relay nodes with the largest number of sub-nodes in the selectable relay set.
9. A non-transitory computer storage medium storing computer-executable instructions for execution by one or more processors for performing the method of voice management of a clustered system of any of claims 1-8.
10. A voice management apparatus for a cluster system, comprising: And a memory communicatively coupled to the at least one processor, wherein the memory stores instructions executable by the at least one processor, the instructions executable by the processor to perform the method of voice management of a clustered system of any of claims 1-8.

Description

Voice management method and device of cluster system Technical Field The present invention relates to the field of wireless communications technologies, and in particular, to a method and an apparatus for voice management of a trunking system. Background In a conventional cellular trunked intercom system (i.e., trunked system), a terminal needs to establish a dedicated communication link with a gateway through a single base station to receive downlink voice. Where when a dispatcher presses Push-to-talk (PTT) or a group member initiates a group call, the system needs to pass his voice to the other members in the group, thereby triggering the call. A call typically has exclusive access to a frequency channel or time slot, and the channel resources are not shared by other calls, i.e., communicated using dedicated communication links, for the duration of the call. The path of the dedicated communication link is from the speaker terminal to the single base station, then from the single base station to the gateway, and then to all the receiver terminals through the single base station, wherein the gateway is responsible for connecting different base stations, selecting channels, processing core control devices of signaling, and the single base station refers to that all terminals in a certain local area (such as a building or a park) are normally covered by one base station, and the terminals must be connected with the base station first to access the whole network. The downlink voice refers to communication voice from a network side (such as a command center or a dispatching desk) to a terminal (such as an interphone), and the process of receiving the downlink voice is that when the system starts to send voice data on an established exclusive communication link through a base station connected with the system, the terminal receives the data, decodes and plays the data, and a user can hear speaking contents. The cluster system of the prior art has the following problems: (1) The voice listening capacity of a single base station is limited, that is, the channel resources of the single base station, such as time division multiple access (Time Division Multiple Access, abbreviated TDMA) time slots, are limited, and only 30 to 50 terminals are usually supported to simultaneously listen to downlink voice. When the number of the terminals exceeds the capacity threshold of the base station, the phenomenon of 'listening blocking' occurs in the newly added terminals, the scheduled voice cannot be acquired in real time, and the multi-terminal cooperative efficiency is seriously affected. (2) The gateway synchronization mechanism is inefficient, that is, the synchronization of the existing gateway and the terminal depends on control signaling (such as periodic heartbeat packets) in a fixed format, the signaling does not contain dynamic information such as a listening state of the terminal, network topology adaptation and the like, so that the gateway cannot accurately identify the voice receiving capability and network access position of the terminal, the synchronization delay can reach 200 to 500 ‌ ‌ milliseconds (‌ millisecond, abbreviated as ms), and downlink voice transmission mismatch (such as voice data transmission to an offline terminal) is easy to occur, and channel resources are wasted. In view of this, overcoming the drawbacks of the prior art is a problem to be solved in the art. Disclosure of Invention The invention aims to solve the problems of limited voice listening capacity of a single base station and low efficiency of a gateway synchronization mechanism in the prior art. The invention adopts the following technical scheme: In a first aspect, the present invention provides a voice management method for a trunking system, including: The gateway generates a preamble message carrying dynamic configuration information and sends the preamble message to the terminal; The terminal synchronizes with the gateway according to the dynamic configuration information; And the terminal receives the downlink message corresponding to the downlink voice broadcast according to the dynamic configuration information. Further, the dynamic configuration information includes channel information and rights information; The terminal synchronizing with the gateway according to the dynamic configuration information comprises: The terminal analyzes the preamble message to obtain the channel information and the authority information; Performing authentication on the terminal using the authority information; and setting a current channel for the authenticated terminal by using the channel information. Further, the dynamic configuration information further includes time slot information; The terminal receives downlink messages corresponding to the downlink voice broadcast according to the dynamic configuration information, and the method comprises the following steps: the gateway sends downlink voice broadcast; and the terminal receives