DECT-based cluster communication system and method, and base station

Abstract

Disclosed in the present application are a DECT-based cluster communication system and method, and a base station. The system comprises a base station, a first communication device and several data receiving ends. The method comprises: when a base station receives a first request sent by a first communication device for requesting the establishment of a call, selecting an idle channel as a first call channel for bidirectional data transmission with the first communication device; and also selecting another idle channel as a broadcast channel, and sending monitoring signals to several data receiving ends, such that the data receiving ends can monitor the broadcast channel and subsequently receive first data of the first communication device from the broadcast channel. Therefore, the present application solves the problem of each call-participating device being able to receive a voice only after occupying a separate channel to establish a call with a base station, and compensates for the disadvantage of the number of call-participating devices being restricted by the number of available channels.

Description

A DECT-based trunking communication system, method, and base station

[0001] This application claims priority to Chinese Patent Application No. 202510120503.0, filed on January 25, 2025, entitled "A DECT-based trunking communication system, method, and base station", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of wireless communication technology, and in particular to a DECT-based trunking communication system, method, and base station. Background Technology

[0003] In a DECT (Digital Enhanced Cordless Telecommunications) system, the base station plays a central role, managing and coordinating communication between all PPs (Portable Parts, the portable components of DECT devices such as headsets and handsets). When a PP initiates a PTT (Push-to-Talk), it sends a request to the base station to establish a new call or join an existing one. Upon receiving this request, the base station determines how to handle it based on the current communication status and resource configuration. If the base station determines that a new call can be established or that the PP can join a call, it sends notifications or instructions to all relevant PPs, instructing them to establish a call and form a conference at the base station. Specifically, the base station sends these notifications or instructions via downlink communication (from the base station to the PPs), telling each PP how to configure its communication parameters (such as frequency, time slots, etc.) so that they can correctly receive and send call data. Summary of the Invention

[0004] In a first aspect, one embodiment of this application provides a DECT-based trunking communication system, including: a base station, a first communication device, and several data receiving terminals;

[0005] The first communication device is configured to send a first request to the base station to establish a call;

[0006] The base station is configured to, upon receiving the first request, select an idle channel as a first communication channel for bidirectional data transmission with the first communication device; select another idle channel as a broadcast channel; and send a listening signal to a plurality of data receiving terminals; wherein the listening signal is configured to instruct the data receiving terminals to listen to the broadcast channel;

[0007] The data receiving end is used to monitor the broadcast channel according to the monitoring signal;

[0008] The first communication device is used to send first data to the base station through the first communication channel;

[0009] The base station is also configured to broadcast the first data on the broadcast channel;

[0010] The data receiving end is also used to receive the first data from the broadcast channel.

[0011] Secondly, another embodiment of this application provides a DECT-based trunking communication method, applicable to a base station in a DECT-based trunking communication system as described in any of the preceding embodiments, comprising:

[0012] Obtain the first request sent by the first communication device to establish a call;

[0013] Upon receiving the first request, an idle channel is selected as the first communication channel for bidirectional data transmission with the first communication device.

[0014] Select another idle channel as a broadcast channel and send a listening signal to a plurality of the data receiving terminals; wherein the listening signal is used to instruct the data receiving terminals to listen to the broadcast channel;

[0015] Receive first data sent by the first communication device through the first call channel;

[0016] The first data is broadcast on the broadcast channel.

[0017] Thirdly, another embodiment of this application provides a base station, including a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor, wherein the processor executes the computer program to implement a DECT-based trunking communication method as described in any of the embodiments. Attached Figure Description

[0018] Figure 1 is a schematic diagram of the structure of a DECT-based cluster communication system provided in an embodiment of this application.

[0019] Figure 2 is a flowchart illustrating a DECT-based cluster communication method according to an embodiment of this application.

[0020] Figure 3 is a schematic diagram of communication between multiple communication devices and multiple data receiving ends provided in an embodiment of this application.

[0021] Figure 4 is another structural schematic diagram of a DECT-based cluster communication system provided in an embodiment of this application. Embodiments of the present invention

[0022] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0023] Referring to Figure 1, it is a schematic diagram of the structure of a DECT-based trunking communication system provided in an embodiment of this application, including: a base station 01, a first communication device 02, and several data receiving terminals 03;

[0024] The first communication device 02 is used to send a first request to the base station 01 to establish a call;

[0025] In some implementations, taking a voice call scenario as an example, when the TP (the talking device in a Talking Part call, i.e., the first communication device 02) detects that the user initiates a PTT call (Push to Talk, i.e., a call function that allows multiple people to speak and answer at the same time, similar to a walkie-talkie) by pressing a button, it accesses the base station 01 through the DECT wireless protocol and establishes a call.

[0026] The base station 01 is configured to, upon receiving the first request, select an idle channel as a first communication channel for bidirectional data transmission with the first communication device 02; select another idle channel as a broadcast channel; and send a listening signal to a plurality of data receiving terminals 03; wherein the listening signal is configured to instruct the data receiving terminals 03 to listen to the broadcast channel.

[0027] The data receiving terminal 03 is used to monitor the broadcast channel according to the monitoring signal;

[0028] In some implementations, as shown in Figure 4, after base station 01 detects that a PTT call has been established, that is, when it detects the existence of a first call channel, it selects a channel as a PTT broadcast channel for broadcasting voice data. Base station 01 then sends the channel information to all LP (Listening Part: listening device in PTT call) data receivers 03 through the DECT wireless protocol, so that the LPs can start listening to voice data on the broadcast channel after receiving the listening signal, thereby forming a trunking communication system as shown in Figure 1.

[0029] The first communication device 02 is used to send first data to the base station 01 through the first communication channel;

[0030] The base station 01 is also used to broadcast the first data on the broadcast channel;

[0031] The data receiving terminal 03 is also used to receive the first data from the broadcast channel.

[0032] In some implementations, when a user speaks using a TP, the voice is received by the TP and transmitted to base station O1 via a first call channel. Upon receiving the voice data, base station O1 broadcasts the voice data within a broadcast channel, allowing LPs to receive the voice data from the broadcast channel. It is understood that this embodiment solves the problem of the number of LPs being limited by the number of available channels by selecting a single channel as the broadcast channel.

[0033] In some implementations, the DECT-based trunking communication system described in the above-mentioned application embodiments further includes: a plurality of second communication devices 04;

[0034] A plurality of the second communication devices 04 are used to send a second request to the base station 01 to participate in the call;

[0035] The base station 01 is also configured to select an idle channel as a second communication channel for bidirectional data transmission with the second communication device 04 when receiving the second request;

[0036] The second communication device 04 is also used to send second data to the base station 01 through the second call channel;

[0037] The base station 01 is also used to send the second data to the first communication device 02 through the first call channel, and to broadcast the second data in the broadcast channel.

[0038] In some implementations, when a new TP (second communication device 04) is needed during a call, the new TP needs to send a call participation request to the base station 01 so that the base station selects a second call channel as the communication link, forming a cluster communication system as shown in Figure 3.

[0039] It should be noted that in the DECT protocol, there are 12*10 channels in the European frequency band. The 12 refers to the maximum of 12 devices communicating simultaneously, and the 10 refers to the 10 frequency bands each device can switch between. Furthermore, when the LP (Linger Pointer) is a device with both receiving and voice call capabilities, it can switch to TP (Telephone Pointer) at any time during a call, and vice versa. Therefore, although the TP needs to use a separate channel to communicate with base station 01, the number of devices participating in the call is not limited by the number of available channels.

[0040] In some implementations, the first data and the second data are voice data;

[0041] The base station 01 is also used to perform audio mixing processing on the first data and the several second data when it receives the first data and several second data at the same time to generate mixed audio data.

[0042] The mixed data is broadcast in the broadcast channel;

[0043] In some embodiments, the base station 01 is further configured to select a communication device to receive the mixed audio data after generating the mixed audio data, and to designate the selected communication device as the target communication device; wherein, the target communication device includes: a first communication device 02 and a second communication device 04;

[0044] The data corresponding to the target communication device in the mixed data is muted to generate muted data;

[0045] The muting data is sent to the target communication device through the call channel corresponding to the target communication device.

[0046] In some implementations, after receiving all voice messages from TPs, base station 01 performs audio mixing in its voice processing module and then transmits the mixed data through a broadcast channel. For LPs, they receive voice data through the broadcast channel, and their voice data is the mixed data; for TPs, they receive voice data through a channel established with base station 01, and their voice data is the mixed voice and their own voice after being muted.

[0047] For example, if T1, T2, and T3 all join the call as Talking Parts, base station O1 will mix all the voice data from T1, T2, and T3. Before transmitting the mixed voice data to T1, it will further mute the voice data from T1, so that T1 hears the voices of T2 and T3. For the LP, it receives voice data via broadcast; this voice data is the mixed data from all TPs.

[0048] In some embodiments, after sending a listening signal to a plurality of data receiving terminals 03, the base station 01 is also used to detect whether there is interference in the broadcast channel during each detection period.

[0049] When interference is detected in the broadcast channel, an idle channel is selected as the target broadcast channel, and a switching signal is generated based on the target broadcast channel. The switching signal is then broadcast in the broadcast channel.

[0050] The data receiving terminal 03 is also used to switch from the currently monitored broadcast channel to the target broadcast channel when the switching signal is received.

[0051] In one embodiment of this application, in order to improve call quality, base station 01 will detect whether there is wireless interference on the channel every 1.28 seconds; if there is interference, base station 01 will reselect an interference-free channel and send the channel information to all Listening Parts; after receiving the broadcast channel information again, the Listening Part will determine whether the broadcast channel position has changed, and if it has changed, it will switch to the new channel for listening.

[0052] In some embodiments, the first communication device 02 and the second communication device 04 are also used to disconnect the call with the base station 01;

[0053] The base station 01 is also configured to close the broadcast channel when it detects that all communication devices are disconnected and no second request is received from any communication device within a preset waiting period.

[0054] In some implementations, to improve the device's battery life, when all Talking Parts exit the call and no new Talking Parts join the call within 10 seconds, base station 01 shuts down the broadcast channel and ends the PTT call.

[0055] This embodiment provides a DECT-based trunking communication system, including a base station, a first communication device, and several data receivers. When the base station receives a first request from the first communication device to establish a call, it selects an idle channel as a first call channel for bidirectional data transmission with the first communication device, and simultaneously selects another idle channel as a broadcast channel, sending a listening signal to the several data receivers. This allows the data receivers to listen to the broadcast channel and subsequently receive first data from the first communication device. This embodiment categorizes the participating devices into the first communication device and the data receivers. It is understood that some participating devices only need to receive data and do not need to send data to other devices; these devices are designated as data receivers. By selecting a single channel as the broadcast channel, multiple data receivers can receive data by listening to this broadcast channel without needing to occupy multiple channels separately. This solves the problem that participating devices need to occupy channels and establish a call with the base station before receiving voice, and overcomes the limitation of the number of participating devices being restricted by the number of available channels.

[0056] Referring to Figure 2, it is a flowchart illustrating a DECT-based cluster communication method according to an embodiment of this application, including:

[0057] S1. Obtain the first request sent by the first communication device to establish a call;

[0058] S2. Upon receiving the first request, select an idle channel as the first communication channel for bidirectional data transmission with the first communication device;

[0059] S3. Select another idle channel as the broadcast channel and send a listening signal to a plurality of the data receiving terminals; wherein, the listening signal is used to instruct the data receiving terminals to listen to the broadcast channel;

[0060] S4. Receive the first data sent by the first communication device through the first call channel;

[0061] S5. Broadcast the first data on the broadcast channel.

[0062] In some implementations, the DECT-based cluster communication method described in the above embodiments further includes:

[0063] S6. Obtain a second request from several second communication devices to participate in the call;

[0064] S7. Upon receiving the second request, select an idle channel as the second communication channel for bidirectional data transmission with the second communication device;

[0065] S8. Receive second data sent by each of the second communication devices through the second communication channel;

[0066] S9. Send the second data to the first communication device through the first call channel, and broadcast the second data in the broadcast channel.

[0067] In some implementations, the DECT-based cluster communication method described in the above embodiments further includes:

[0068] S10. When the first data and several second data are received simultaneously, the first data and several second data are mixed to generate mixed data; wherein, the first data and the second data are voice data;

[0069] S11. Broadcast the mixed data in the broadcast channel.

[0070] This embodiment provides a DECT-based trunking communication method. Upon receiving a first request from a first communication device to establish a call, an idle channel is selected as the first call channel for bidirectional data transmission with the first communication device. Simultaneously, another idle channel is selected as a broadcast channel, and a listening signal is sent to several data receiving ends. This allows the data receiving ends to listen to the broadcast channel and subsequently receive first data from the first communication device. This embodiment categorizes participating devices into the first communication device and data receiving ends. It is understood that some participating devices only need to receive data and do not need to send data to other devices; these devices are designated as data receiving ends. By selecting a single channel as the broadcast channel, multiple data receiving ends can receive data by listening to this broadcast channel without needing to occupy multiple channels separately. This solves the problem that participating devices need to occupy channels and establish a call with the base station before receiving voice, and overcomes the limitation of the number of participating devices being restricted by the number of available channels.

[0071] In some embodiments, a base station is provided, including a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor, wherein the processor executes the computer program to implement a DECT-based trunking communication method as described in any of the foregoing embodiments.

[0072] The base station can be a computing device such as a desktop computer, laptop, handheld computer, or cloud server. The base station may include, but is not limited to, a processor and a memory.

[0073] The processor can be a Central Processing Unit (CPU), or other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor can be a microprocessor or any conventional processor. This processor is the control center of the base station, connecting various parts of the base station via various interfaces and lines.

[0074] The memory can be used to store the computer program. The processor implements various functions of the base station by running or executing the computer program stored in the memory and calling the data stored in the memory. The memory may mainly include a program storage area and a data storage area. The program storage area may store the operating system, applications required for at least one function, etc.; the data storage area may store data created based on the use of the mobile phone, etc. In addition, the memory may include high-speed random access memory, and may also include non-volatile memory, such as hard disk, memory, plug-in hard disk, smart media card (SMC), secure digital (SD) card, flash card, at least one disk storage device, flash memory device, or other volatile solid-state storage device.

[0075] The above description is an embodiment of this application. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications are also considered to be within the scope of protection of this application.

Claims

1. A trunking communication system based on DECT, characterized in that, include: Base station, first communication equipment, and several data receiving terminals; The first communication device is configured to send a first request to the base station to establish a call; The base station is configured to select an idle channel as a first communication channel for bidirectional data transmission with the first communication device when receiving the first request. Select another idle channel as a broadcast channel and send a listening signal to a plurality of the data receiving terminals; wherein the listening signal is used to instruct the data receiving terminals to listen to the broadcast channel; The data receiving end is used to monitor the broadcast channel according to the monitoring signal; The first communication device is used to send first data to the base station through the first communication channel; The base station is also configured to broadcast the first data on the broadcast channel; The data receiving end is also used to receive the first data from the broadcast channel.

2. The DECT-based trunking communication system as described in claim 1, characterized in that, Also includes: Second communication equipment; The second communication device is used to send a second request to the base station to participate in the call; The base station is further configured to, upon receiving the second request, select an idle channel as a second call channel for bidirectional data transmission with the second communication device; The second communication device is further configured to send second data to the base station via the second call channel; The base station is also configured to send the second data to the first communication device through the first call channel, and to broadcast the second data in the broadcast channel.

3. A DECT-based trunking communication system as described in claim 2, characterized in that, The first data and the second data are voice data; The base station is further configured to, when simultaneously receiving the first data and a plurality of second data, perform audio mixing processing on the first data and the plurality of second data to generate mixed audio data; The mixed data is broadcast in the broadcast channel.

4. A DECT-based trunking communication system as described in claim 3, characterized in that, The base station is further configured to, after generating the mixed audio data, select a communication device that needs to receive the mixed audio data, and designate the selected communication device as the target communication device; wherein, the target communication device includes: a first communication device and a second communication device; The data corresponding to the target communication device in the mixed data is muted to generate muted data; The muting data is sent to the target communication device through the call channel corresponding to the target communication device.

5. A DECT-based trunking communication system as described in claim 4, characterized in that, After sending a monitoring signal to several of the data receiving terminals, the base station is also used to detect whether there is interference in the broadcast channel during each detection period. When interference is detected in the broadcast channel, an idle channel is selected as the target broadcast channel, and a switching signal is generated based on the target broadcast channel. The switching signal is then broadcast in the broadcast channel. The data receiving end is also used to switch from the currently monitored broadcast channel to the target broadcast channel when it receives the switching signal.

6. A DECT-based trunking communication system as described in claim 2, characterized in that, The first and second communication devices are also used to disconnect the call with the base station; The base station is also configured to close the broadcast channel when it detects that all communication devices are disconnected and no second request is received from any communication device within a preset waiting period.

7. A cluster communication method based on DECT, characterized in that, Applicable to base stations in DECT-based trunking communication systems as described in any one of claims 1-6; The method includes: Obtain the first request sent by the first communication device to establish a call; Upon receiving the first request, an idle channel is selected as the first communication channel for bidirectional data transmission with the first communication device. Select another idle channel as a broadcast channel and send a listening signal to a plurality of the data receiving terminals; wherein the listening signal is used to instruct the data receiving terminals to listen to the broadcast channel; Receive first data sent by the first communication device through the first call channel; The first data is broadcast on the broadcast channel.

8. A DECT-based cluster communication method as described in claim 7, characterized in that, Also includes: Obtain a second request from several second communication devices to participate in the call; Upon receiving the second request, an idle channel is selected as the second communication channel for bidirectional data transmission with the second communication device; Through the second communication channel, receive second data sent by each of the second communication devices; The second data is sent to the first communication device through the first call channel, and the second data is broadcast in the broadcast channel.

9. A DECT-based cluster communication method as described in claim 8, characterized in that, Also includes: When the first data and several second data are received simultaneously, the first data and several second data are mixed to generate mixed data; wherein, the first data and the second data are voice data; The mixed data is broadcast in the broadcast channel.

10. A base station, characterized in that, It includes a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor, wherein the processor executes the computer program to implement a DECT-based cluster communication method as described in any one of claims 7 to 9.

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