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

Abstract

The invention discloses a DECT-based trunking communication system, a DECT-based trunking communication method and a base station, and the system comprises the base station, first communication equipment and a plurality of data receiving ends, the method comprises the following steps: when a base station receives a first request for establishing a call sent by first communication equipment, selecting an idle channel as a first call channel for performing bidirectional data transmission with the first communication equipment, selecting another idle channel as a broadcast channel, and sending a monitoring signal to a plurality of data receiving ends; and sending the broadcast channel to a data receiving end, so that the data receiving end monitors the broadcast channel and can subsequently receive the first data of the first communication equipment from the broadcast channel. Therefore, the invention solves the problem that the call participating equipment needs to occupy one channel to establish a call with the base station and then can receive the voice, and makes up for the defect that the number of the call participating equipment is limited by the number of available channels.

Description

Technical Field

[0001] The present invention relates to the field of wireless communication technology, and in particular to a DECT-based cluster communication system, method, and base station. Background Art

[0002] In the DECT (Digital Enhanced Cordless Telecommunications) system, the base station plays a core role, which is responsible for managing and coordinating the communication between all PPs (Portable Parts, the portable part of the DECT device), such as headsets, handles, etc. When a PP initiates PTT (Push to Talk), the PP will send a request to the base station to establish a new call or join an existing call. After receiving this request, the base station will decide how to handle this request based on the current communication status and resource configuration. If the base station determines that a new call can be established or the PP is allowed to join the call, it will send notifications or instructions to all related PPs, telling them to establish a call and form a conference on the base station. Specifically, the base station will send these notifications or instructions through downlink communication (from the base station to the PP), telling each PP how to configure its own communication parameters (such as frequency, time slot, etc.) so that they can correctly receive and send call data.

[0003] However, each PP needs to occupy a channel to participate in a call on the base station. If a base station has only 10 channels, then only 10 PPs can establish calls on it at the same time, which also means that only 10 PPs can participate in a PTT call. Therefore, the number of devices participating in a call is limited by the number of channels available on the base station. Summary of the invention

[0004] The embodiment of the present invention provides a cluster communication system, method, and base station based on DECT, which solves the problem that the call participating devices need to each occupy a channel and establish a call with the base station before receiving voice, and makes up for the defect that the number of call participating devices is limited by the number of available channels.

[0005] An embodiment of the present invention provides a DECT-based trunking communication system, comprising: a base station, a first communication device, and a plurality of data receiving terminals;

[0006] The first communication device is used to send a first request to the base station for establishing a call;

[0007] 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 monitoring signal to the plurality of data receiving terminals; wherein the monitoring signal is used to instruct the data receiving terminals to monitor the broadcast channel;

[0008] The data receiving end is used to monitor the broadcast channel according to the monitoring signal;

[0009] The first communication device is used to send first data to the base station through the first call channel;

[0010] The base station is further configured to broadcast the first data on the broadcast channel;

[0011] The data receiving end is further used to receive the first data from the broadcast channel.

[0012] Furthermore, the DECT-based trunking communication system described in the above embodiment further includes: a second communication device;

[0013] The second communication device is used to send a second request to the base station for participating in the call;

[0014] The base station is further configured to select an idle channel as a second communication channel for bidirectional data transmission with the second communication device when receiving the second request;

[0015] The second communication device is further configured to send second data to the base station through the second call channel;

[0016] The base station is further configured to send the second data to the first communication device via the first call channel, and broadcast the second data in the broadcast channel.

[0017] Furthermore, the first data and the second data are voice data;

[0018] The base station is further configured to, when receiving the first data and a plurality of the second data at the same time, perform mixing processing on the first data and the plurality of the second data to generate mixed data;

[0019] The audio mixing data is broadcasted in the broadcast channel.

[0020] Furthermore, the base station is further configured to select a communication device to receive the mixed sound data after generating the mixed sound data, and use the selected communication device as a target communication device; wherein the target communication device includes: a first communication device and a second communication device;

[0021] Silencing the data corresponding to the target communication device in the mixed data to generate silenced data;

[0022] The silencing data is sent to the target communication device via a call channel corresponding to the target communication device.

[0023] Furthermore, the base station, after sending the monitoring signal to the plurality of data receiving terminals, is further configured to detect whether there is interference in the broadcast channel in each detection period;

[0024] When it is determined that interference exists in the broadcast channel, reselecting an idle channel as a target broadcast channel, generating a switching signal according to the target broadcast channel, and then broadcasting the switching signal in the broadcast channel;

[0025] The data receiving end is further configured to switch from the currently monitored broadcast channel to a target broadcast channel when receiving the switching signal.

[0026] Furthermore, the first communication device and the second communication device are also used to disconnect the call with the base station;

[0027] The base station is further configured to close the broadcast channel when it is detected that all communication devices are disconnected and no second request sent by any communication device is received within a preset waiting time.

[0028] Another preferred embodiment of the present invention provides a DECT-based cluster communication method, which is applicable to a base station in a DECT-based cluster communication system as described in any one of the above-mentioned embodiments of the invention, comprising:

[0029] Acquire a first request for establishing a call sent by a first communication device;

[0030] When receiving the first request, selecting an idle channel as a first communication channel for bidirectional data transmission with the first communication device;

[0031] Selecting another idle channel as a broadcast channel, and sending a monitoring signal to the plurality of data receiving terminals; wherein the monitoring signal is used to instruct the data receiving terminals to monitor the broadcast channel;

[0032] receiving, through the first call channel, first data sent by the first communication device;

[0033] The first data is broadcast on the broadcast channel.

[0034] Furthermore, the DECT-based cluster communication method described in the above embodiment further includes:

[0035] Acquire second requests for participating in a call sent by a plurality of second communication devices;

[0036] When receiving the second request, selecting an idle channel as a second communication channel for bidirectional data transmission with the second communication device;

[0037] receiving, through the second call channel, second data sent by each of the second communication devices;

[0038] The second data is sent to the first communication device through the first call channel, and the second data is broadcasted in the broadcast channel.

[0039] Furthermore, the DECT-based cluster communication method described in the above embodiment further includes:

[0040] When the first data and a plurality of the second data are received at the same time, mixing the first data and a plurality of the second data to generate mixed data; wherein the first data and the second data are voice data;

[0041] The audio mixing data is broadcasted in the broadcast channel.

[0042] Another embodiment of the present invention 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, and when the processor executes the computer program, a cluster communication method based on DECT as described in any one of the embodiments is implemented.

[0043] The following beneficial effects are achieved by implementing the present invention:

[0044] The present invention discloses a cluster communication system, method and base station based on DECT. The system includes: a base station, a first communication device and several data receiving terminals. When the base station receives a first request sent by the first communication device to establish a call, it selects an idle channel for a first call channel for two-way data transmission with the first communication device, and selects another idle channel as a broadcast channel, and sends a monitoring signal to several data receiving terminals, so that the data receiving terminals monitor the broadcast channel and can subsequently receive the first data of the first communication device from the broadcast channel. The present invention divides the devices participating in the call into the first communication device and the data receiving terminal. It can be understood that among the devices participating in the call, there are some devices that only need to receive data and do not need to send data to other devices. In this case, such devices are used as data receiving terminals. By selecting a channel as a broadcast channel, multiple data receiving terminals can receive data by monitoring the broadcast channel without occupying multiple channels respectively, which solves the problem that the devices participating in the call need to occupy the channel and establish a call with the base station before receiving voice, and makes up for the defect that the number of devices participating in the call is limited by the number of available channels. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 It is a structural diagram of a DECT-based trunking communication system provided by an embodiment of the present invention.

[0046] Figure 2 It is a flowchart of a DECT-based cluster communication method provided by an embodiment of the present invention.

[0047] Figure 3 It is a schematic diagram of communication between multiple communication devices and multiple data receiving terminals provided by an embodiment of the present invention.

[0048] Figure 4 It is another structural schematic diagram of a DECT-based trunking communication system provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0049] In order to make the purpose, technical solutions and advantages of this application clearer, the technical solutions in this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0050] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0051] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0052] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0053] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0054] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0055] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0056] See also Figure 1, is a structural diagram of a DECT-based trunking communication system provided by an embodiment of the present invention, comprising: a base station 01, a first communication device 02, and a plurality of data receiving terminals 03;

[0057] The first communication device 02 is used to send a first request to the base station 01 to request to establish a call;

[0058] In a preferred embodiment of the present invention, taking a voice call scenario as an example, when the TP (the speaking device in the Talking Part call, i.e., the first communication device 02) detects that the user initiates a PTT call (Push to Talk, a call function that allows multiple people to speak and listen at the same time, similar to a walkie-talkie function) by pressing a button, the base station is accessed through the DECT wireless protocol and a call is established;

[0059] The base station 01 is configured to select an idle channel as a first communication channel for bidirectional data transmission with the first communication device 02 upon receiving the first request; select another idle channel as a broadcast channel, and send a monitoring signal to the plurality of data receiving terminals; wherein the monitoring signal is used to instruct the data receiving terminals to monitor the broadcast channel;

[0060] The data receiving end 03 is used to monitor the broadcast channel according to the monitoring signal;

[0061] In a preferred embodiment of the present invention, Figure 4 As shown, after the base station 01 detects that a PTT call is established, that is, when it detects that there is a first call channel, it selects a channel as a PTT broadcast channel for broadcasting voice data, and the base station 01 sends the channel information to all LP (Listening Part: listening device in PTT call) data receiving terminals 03 through the DECT wireless protocol, so that the LP starts to monitor the voice data in the broadcast channel after receiving the monitoring signal, thereby forming the following Figure 1 The trunking communication system shown.

[0062] The first communication device 02 is used to send first data to the base station 01 through the first call channel;

[0063] The base station 01 is further configured to broadcast the first data on the broadcast channel;

[0064] The data receiving end 03 is further configured to receive the first data from the broadcast channel.

[0065] In a preferred embodiment of the present invention, when a user uses TP to speak, the voice will be received by TP and sent to the base station through the first conversation channel, and after receiving the voice data, the base station broadcasts the voice data in the broadcast channel so that the LP receives the voice data from the broadcast channel. It can be understood that this embodiment solves the problem that the number of LPs is limited by the number of available channels by selecting one channel as the broadcast channel.

[0066] Preferably, the DECT-based trunking communication system described in the above-mentioned embodiment of the invention further includes: a plurality of second communication devices 04;

[0067] A plurality of the second communication devices 04, configured to send a second request to the base station 01 for participating in the call;

[0068] The base station 01 is further 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;

[0069] The second communication device 04 is further configured to send second data to the base station 01 through the second call channel;

[0070] The base station 01 is further configured to send the second data to the first communication device 02 via the first call channel, and broadcast the second data in the broadcast channel.

[0071] In a preferred embodiment of the present invention, 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 so that the base station selects a second call channel as the communication link, forming a call like this: Figure 3 The trunking communication system shown.

[0072] It should be noted that in the DECT protocol, there are 12*10 channels in the European frequency band. 12 means that at most 12 devices can communicate at the same time, and 10 means that each device has 10 frequency bands to switch. Moreover, when LP is a device with both answering and voice call functions, during a call, LP can also be switched to TP at any time, and similarly, TP can also be switched to LP. Therefore, although TP needs to use a separate channel to communicate with the base station, the number of devices participating in the call is still not limited by the number of available channels.

[0073] Preferably, the first data and the second data are voice data;

[0074] The base station 01 is further configured to, when receiving the first data and a plurality of the second data at the same time, perform mixing processing on the first data and the plurality of the second data to generate mixed data;

[0075] broadcasting the audio mixing data in the broadcast channel;

[0076] Preferably, the base station 01 is further used to select a communication device to receive the mixed sound data after generating the mixed sound data, and use the selected communication device as a target communication device; wherein the target communication device includes: a first communication device 02 and a second communication device 04;

[0077] Silencing the data corresponding to the target communication device in the mixed data to generate silenced data;

[0078] The silencing data is sent to the target communication device via a call channel corresponding to the target communication device.

[0079] In a preferred embodiment of the present invention, after receiving the voices of all TPs, the base station performs mixing processing in the voice processing module and sends the mixed data through the broadcast channel. For LP, it receives voice data through the broadcast channel, and its voice data is mixed data; for TP, it receives voice data by establishing a call channel with the base station, and its voice data is mixed voice and data after silencing its own voice.

[0080] For example, if T1, T2, and T3 all join the call as Talking Part, the base station will mix the voices of T1, T2, and T3, and mute the voice data of T1 before sending it to T1 through the channel, so that T1 hears the voices of T2 and T3. For LP, it receives voice data through broadcasting, which is the mixed voice data of all TPs.

[0081] Preferably, the base station 01, after sending the monitoring signal to the plurality of data receiving terminals 03, is further configured to detect whether there is interference in the broadcast channel in each detection cycle;

[0082] When it is determined that interference exists in the broadcast channel, reselecting an idle channel as a target broadcast channel, generating a switching signal according to the target broadcast channel, and then broadcasting the switching signal in the broadcast channel;

[0083] The data receiving end 03 is further configured to switch from the currently monitored broadcast channel to a target broadcast channel when receiving the switching signal.

[0084] In a preferred embodiment of the present invention, in order to improve the call quality, the base station detects whether there is wireless interference in the channel every 1.28 seconds; if there is interference, the base station reselects an interference-free channel and sends the channel information to all Listening Parts; and after the Listening Part receives the broadcast channel information again, it determines whether the broadcast channel position has changed. If it has changed, it will switch to the new channel for listening.

[0085] Preferably, the first communication device 02 and the second communication device 04 are also used to disconnect the call with the base station;

[0086] The base station 01 is further configured to close the broadcast channel when it is detected that all communication devices are disconnected and no second request sent by any communication device is received within a preset waiting time.

[0087] In a preferred embodiment of the present invention, in order to improve the endurance of the device, when all Talking Parts exit the call and no new Talking Part joins the call within 10 seconds, the base station closes the broadcast channel and ends the PTT call.

[0088] This embodiment provides a cluster communication system based on DECT, including: a base station, a first communication device, and several data receiving terminals; when the base station receives a first request sent by the first communication device to establish a call, it selects an idle channel for a first call channel for two-way data transmission with the first communication device, and selects another idle channel as a broadcast channel, and sends a monitoring signal to several data receiving terminals; so that the data receiving terminals monitor the broadcast channel and can subsequently receive the first data of the first communication device from the broadcast channel. This embodiment divides the devices participating in the call into the first communication device and the data receiving terminal. It can be understood that among the devices participating in the call, there are some devices that only need to receive data and do not need to send data to other devices, so this type of device is used as a data receiving terminal. By selecting a channel as a broadcast channel, multiple data receiving terminals can receive data by monitoring the broadcast channel without occupying multiple channels separately, which solves the problem that the devices participating in the call need to occupy the channel and establish a call with the base station before receiving voice, and makes up for the defect that the number of devices participating in the call is limited by the number of available channels.

[0089] See also Figure 2 , is a flow chart of a DECT-based cluster communication method provided by an embodiment of the present invention, comprising:

[0090] S1. Obtaining a first request for establishing a call sent by a first communication device;

[0091] S2. upon receiving the first request, selecting an idle channel as a first communication channel for bidirectional data transmission with the first communication device;

[0092] S3, selecting another idle channel as a broadcast channel, and sending a monitoring signal to the plurality of data receiving terminals; wherein the monitoring signal is used to instruct the data receiving terminals to monitor the broadcast channel;

[0093] S4. receiving, through the first call channel, first data sent by the first communication device;

[0094] S5. Broadcast the first data on the broadcast channel.

[0095] Preferably, the DECT-based cluster communication method described in the above embodiment further includes:

[0096] S6. Obtaining second requests for participating in a call sent by a plurality of second communication devices;

[0097] S7. upon receiving the second request, selecting an idle channel as a second communication channel for bidirectional data transmission with the second communication device;

[0098] S8. receiving, through the second call channel, second data sent by each of the second communication devices;

[0099] S9. Send the second data to the first communication device through the first call channel, and broadcast the second data in the broadcast channel.

[0100] Preferably, the DECT-based cluster communication method described in the above embodiment further includes:

[0101] S10, when the first data and a plurality of the second data are received at the same time, mixing the first data and a plurality of the second data to generate mixed data; wherein the first data and the second data are voice data;

[0102] S11. Broadcast the audio mixing data in the broadcast channel.

[0103] This embodiment provides a cluster communication method based on DECT, by selecting an idle channel for the first call channel for two-way data transmission with the first communication device upon receiving a first request for establishing a call sent by the first communication device, and selecting another idle channel as a broadcast channel, and sending a monitoring signal to a plurality of data receiving terminals; so that the data receiving terminals monitor the broadcast channel and can subsequently receive the first data of the first communication device from the broadcast channel. This embodiment divides the devices participating in the call into the first communication device and the data receiving terminal. It can be understood that among the devices participating in the call, there are some devices that only need to receive data and do not need to send data to other devices, so this type of device is used as a data receiving terminal. By selecting a channel as a broadcast channel, multiple data receiving terminals can receive data by monitoring the broadcast channel without occupying multiple channels separately, which solves the problem that the devices participating in the call need to occupy the channel and establish a call with the base station before receiving voice, and makes up for the defect that the number of devices participating in the call is limited by the number of available channels.

[0104] Another preferred embodiment of the present invention provides a base station, comprising a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor, wherein when the processor executes the computer program, a cluster communication method based on DECT as described in any one of the above embodiments is implemented.

[0105] The base station may be a computing device such as a desktop computer, a notebook, a PDA, a cloud server, etc. The base station may include, but is not limited to, a processor and a memory.

[0106] The processor may be a central processing unit (CPU), other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or any conventional processor, etc. The processor is the control center of the base station, and uses various interfaces and lines to connect various parts of the entire base station.

[0107] The memory can be used to store the computer program, and the processor realizes 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 can mainly include a program storage area and a data storage area, wherein the program storage area can store an operating system, at least one application required for a function, etc.; the data storage area can store data created according to the use of the mobile phone, etc. In addition, the memory can include a high-speed random access memory, and can also include a non-volatile memory, such as a hard disk, a memory, a plug-in hard disk, a smart memory card (Smart Media Card, SMC), a secure digital (Secure Digital, SD) card, a flash card (FlashCard), at least one disk storage device, a flash memory device, or other volatile solid-state storage devices.

[0108] The above is a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A trunking communication system based on DECT, characterized in that: include: A base station, a first communication device, and a plurality of data receiving terminals; The first communication device is used to send a first request to the base station for establishing 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; Selecting another idle channel as a broadcast channel, and sending a monitoring signal to the plurality of data receiving terminals; wherein the monitoring signal is used to instruct the data receiving terminals to monitor 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 call channel; The base station is further configured to broadcast the first data on the broadcast channel; The data receiving end is further used to receive the first data from the broadcast channel.

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

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

4. A DECT-based trunking communication system as claimed in claim 3, characterized in that: The base station is further configured to select a communication device to receive the mixed sound data after generating the mixed sound data, and use the selected communication device as a target communication device; wherein the target communication device includes: a first communication device and a second communication device; Silencing the data corresponding to the target communication device in the mixed data to generate silenced data; The silencing data is sent to the target communication device via a call channel corresponding to the target communication device.

5. A DECT-based trunking communication system as claimed in claim 4, characterized in that: The base station, after sending the monitoring signal to the plurality of data receiving terminals, is further configured to detect whether there is interference on the broadcast channel in each detection period; When it is determined that interference exists in the broadcast channel, reselecting an idle channel as a target broadcast channel, generating a switching signal according to the target broadcast channel, and then broadcasting the switching signal in the broadcast channel; The data receiving end is further configured to switch from the currently monitored broadcast channel to a target broadcast channel when receiving the switching signal.

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

7. A cluster communication method based on DECT, characterized in that: Applicable to a base station in a DECT-based trunking communication system as claimed in any one of claims 1 to 6; The method comprises: Acquire a first request for establishing a call sent by a first communication device; When receiving the first request, selecting an idle channel as a first communication channel for bidirectional data transmission with the first communication device; Selecting another idle channel as a broadcast channel, and sending a monitoring signal to the plurality of data receiving terminals; wherein the monitoring signal is used to instruct the data receiving terminals to monitor the broadcast channel; receiving, through the first call channel, first data sent by the first communication device; The first data is broadcast on the broadcast channel.

8. A DECT-based cluster communication method as claimed in claim 7, characterized in that: Also includes: Acquire second requests for participating in a call sent by a plurality of second communication devices; When receiving the second request, selecting an idle channel as a second communication channel for bidirectional data transmission with the second communication device; receiving, through the second call channel, 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 broadcasted in the broadcast channel.

9. A DECT-based cluster communication method as claimed in claim 8, characterized in that: Also includes: When the first data and a plurality of the second data are received at the same time, mixing the first data and a plurality of the second data to generate mixed data; wherein the first data and the second data are voice data; The audio mixing data is broadcasted in the broadcast channel.

10. A base station, characterized in that: It comprises a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor, and when the processor executes the computer program, a cluster communication method based on DECT as claimed in any one of claims 7 to 9 is implemented.

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