WO2021138894A1 - Procédé d'appel de groupe mcptt, serveur et système de communication - Google Patents

Procédé d'appel de groupe mcptt, serveur et système de communication Download PDF

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Publication number
WO2021138894A1
WO2021138894A1 PCT/CN2020/071344 CN2020071344W WO2021138894A1 WO 2021138894 A1 WO2021138894 A1 WO 2021138894A1 CN 2020071344 W CN2020071344 W CN 2020071344W WO 2021138894 A1 WO2021138894 A1 WO 2021138894A1
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WIPO (PCT)
Prior art keywords
client
call
server
group
mcppt
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PCT/CN2020/071344
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English (en)
Chinese (zh)
Inventor
张志华
杨鹏
程士华
邹仕第
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海能达通信股份有限公司
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Priority to PCT/CN2020/071344 priority Critical patent/WO2021138894A1/fr
Publication of WO2021138894A1 publication Critical patent/WO2021138894A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • H04W4/08—User group management

Definitions

  • This application relates to communication technology, and in particular to an MCPTT group call method, server and communication system.
  • Trunking communication systems usually include multiple call functions such as group calls, emergency calls, initiating or receiving calls to the public network, etc.; at the same time, it can provide users with reliable communication channels, rapid call establishment, priority classification, and dynamic reorganization capabilities. And other functions, especially when performing urgent tasks, these functions are more important.
  • the R13 of the 3rd Generation Partnership Project (3rd Generation Partnership Project, 3GPP) defines Mission Critical Push To Talk (MCPTT) business.
  • MCPTT Mission Critical Push To Talk
  • LTE Long Term Evolution
  • the field of emergency communications can include public safety applications (such as fire alarm and public security systems) and general commercial applications (such as railways and public security systems). Urban subway system).
  • the premise of a trunking group call is that the group number of this group must exist.
  • the user needs to select the group number of this group on the terminal and press Push to Talk (Push to Talk, abbreviated as Push to Talk).
  • PTT Push to Talk
  • This group number can be specified by the administrator through the group user relationship when opening the account, or it can be specified by a specific user or the dispatching station through reorganization for certain users or certain static groups, and then pass The group is notified to each end user.
  • the purpose of this application is to provide an MCPTT group call method, server and communication system, which can flexibly establish a temporary call group and can avoid the failure of the call group creation.
  • An MCPTT group call method comprising: receiving a first call request sent by a first client, the first call request including multiple called numbers; establishing a call group based on the multiple called numbers; The second client corresponding to the number sends a second call request; and receives a first confirmation message sent by multiple second clients, and sends a second confirmation message to the first client according to the first confirmation message, so that the first client The terminal talks with multiple second clients in the call group.
  • the method before the step of receiving the first call request sent by the first client, the method further includes: receiving a registration request sent by the first client; generating a registration success message according to the registration request, and sending To the first client, so that the first client registration is successful.
  • the method further includes: receiving a call end message sent by the first client; and releasing according to the call end message Call the group.
  • the step of the first client and multiple second clients talking in a call group includes: receiving a speaking right request sent by a plurality of second clients, the speaking right request carrying a corresponding speaking right priority Level; Obtain the speaking right priority of multiple second clients according to the speaking right request, and arbitrate the multiple speaking right priority according to the strategy within the group; notify the second client with the highest speaking right priority to proceed with the first client call.
  • a server includes a memory, a processor, and a communication interface.
  • the memory is used for storing program instructions
  • the communication interface is used for sending and receiving data
  • the processor is used for executing the foregoing method according to the program instructions.
  • a MCPTT group call method includes: a first client generates a first call request, the first call request includes multiple called numbers; the first client sends a first call request to a server; the server according to the multiple called The number establishes a call group, and sends a second call request to the second client corresponding to each called number; the second client generates a first confirmation message according to the second call request, and sends the first confirmation message to the server; A second confirmation message is generated according to the first confirmation message, and the second confirmation message is sent to the first client; the first client talks with multiple second clients in the call group.
  • the method before the step of generating the first call request by the first client, the method further includes: the first client sends a registration request to the server; the server generates a registration success message according to the registration request, and sends it to The first client, so that the first client is successfully registered.
  • the method further includes: the first client sends a call end message to the server; the server according to the call end The message releases the call group.
  • the step of the first client and the plurality of second clients to talk in the call group includes: the plurality of second clients send corresponding speech rights requests to the server, and the speech rights requests carry corresponding words
  • the server obtains the speaking rights priority of multiple second clients according to the speaking rights request, and arbitrates the multiple speaking rights priorities according to the strategy within the group; the server notifies the second client with the highest speaking rights priority and the first A client makes a call.
  • a communication system includes at least a first client, a base station, a core network, a server, and a second client; wherein: the first client generates a first call request, and the first call request includes multiple called numbers; A client sends a first call request to the server through the base station and the core network; the server establishes a call group based on multiple called numbers, and sends a second call request to the second client corresponding to each called number; multiple calls The second client generates the first confirmation message according to the second call request and sends the first confirmation message to the server; the server generates the second confirmation message according to the first confirmation message, and sends the second confirmation to the first client through the base station and the core network Message: The first client talks with multiple second clients in the call group through the base station and the core network.
  • this application proposes an MCPPT group call method, server, and communication system.
  • the method receives the first call request sent by the first client through the MCPTT server, and according to the first call
  • the request contained in the request to create the member information of the call group establish the call group, so that the first client can implement the operation mode of temporary group call to multiple second clients in 3GPP, thereby improving the flexibility of the 3GPP communication mode
  • this application also sends a second call request to multiple second clients in the corresponding clusters through the MCPTT server, and further updates the group of the call group according to the first confirmation message returned by the multiple second clients Labels can improve the effectiveness of the call group and avoid the failure of the call group establishment due to all members being busy.
  • FIG. 1 is a schematic diagram of the MCPTT group call process proposed in this application.
  • Figure 2 is a schematic diagram of the logical framework of the communication system proposed in this application.
  • FIG. 3 is a schematic flowchart of another embodiment of the MCPPT group call method proposed in this application.
  • FIG. 4 is a schematic flowchart of an embodiment of step S260 in FIG. 3;
  • FIG. 5 is a schematic diagram of the logical framework of the MCPPT server proposed in this application.
  • FIG. 6 is a schematic flowchart of another embodiment of the method for MCPTT group call proposed in this application.
  • FIG. 7 is a schematic flowchart of still another embodiment of the MCPTT group call method provided by the present application.
  • a plurality of means at least two, such as two, three, etc., unless otherwise specifically defined.
  • the terms “including” and “having” and any variations of them are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but optionally includes unlisted steps or units, or optionally also includes Other steps or units inherent to these processes, methods, products or equipment.
  • This application can be used in many general-purpose or special-purpose wireless communication systems. For example: cluster communication system and equipment, broadband communication system and equipment, or other wireless communication, etc.
  • the MCPTT group call in this application can be a predefined group call.
  • the predefined group call is a call to all members of the group initiated by the user. After the call is established, all members of the group will receive an invitation to join the group call.
  • Figure 1 is a schematic diagram of the MCPTT group call process proposed in an embodiment of the present application
  • Figure 2 is a schematic diagram of the logical framework of the communication system proposed in the present application. Among them, this method can be applied to the communication system in FIG. 2.
  • the communication system 100 may include an MCPTT client 110, an MCPPT server 120, and a group management server (not shown). Among them, there may be multiple MCPPT clients 110, and multiple MCPPT clients 110 may be in multiple locations.
  • the MCPPT server 120 and the group management server may be one physical server; or, they may be two independent physical servers. Taking the MCPPT server 120 and the group management server set on the same physical server as an example, multiple MCPTT clients 110 can perform signaling transmission with the MCPPT server 120 respectively.
  • the MCPPT server 120 in this application includes a group management server, so that the MCPPT server 120 has both communication and group management functions.
  • MCPTT-1 is a call signaling interface between the MCPTT client 110 and the MCPTT server 120, and specifically, a Session Initiation Protocol (Session Initiation Protocol, SIP for short) may be used.
  • SIP Session Initiation Protocol
  • MCPTT-7 is a call signaling interface between the MCPTT server 120 and the MCPTT client 110, and specifically, the Routing Information Protocol (Routing Information Protocol, RIP for short) may be used.
  • the MCPTT server 120 may perform media distribution through MCPPT-7 among multiple MCPPT clients 110 through MCPPT-7.
  • the method specifically includes the following steps:
  • S110 Receive a first call request sent by a first client, where the first call request includes multiple called numbers.
  • the first client and the second client refer to MCPTT clients.
  • the MCPTT server receives the first call request sent by the first client.
  • the first call request may carry multiple called numbers, and the multiple called numbers correspond to multiple second clients, so that the MCPTT server can receive
  • multiple second clients corresponding to the first client's request to establish a temporary group call are obtained.
  • the MCPTT server can query information such as the IP address of the second client according to the call number.
  • the called number may also be used to further indicate the group information of the corresponding second client.
  • each group list, group identification, etc. to which the second client belongs enables the MCPTT server to quickly locate the second client selected by the first client.
  • the first client in this embodiment is not only applicable to the MCPPT client, but also applicable to the first call request initiated by the MCPPT dispatcher. If it is a temporary group call initiated by the MCPTT client, the first call request can use the Network Attached Server (NAS) interface Call Request message; if it is a temporary group call initiated by the MCPTT dispatcher, the first call request can be used D interface SIP (INVITE) message.
  • NAS Network Attached Server
  • ISVITE D interface SIP
  • S120 Establish a call group based on multiple called numbers.
  • the MCPPT client After receiving the first call request, the MCPPT client obtains multiple second clients that the first client requests to establish a temporary group call according to the multiple called numbers carried in the first call request, and combines the first client with Multiple second clients corresponding to multiple called numbers are established as a new call group.
  • the MCPPT server may form a temporary call group of the first client and multiple second clients through the group management server in the MCPPT server.
  • the group management server can assign a group label to the established call group and send it to the MCPPT server.
  • the MCPPT client may also determine whether the first client has the authority to initiate a temporary group call when receiving the first call request. If it is determined that the first client does not have the permission, the first client is notified that the initiation of the temporary group call fails.
  • S130 Send a second call request to the second client corresponding to each called number.
  • the MCPPT server After the MCPPT server has established the call group, it can confirm the network location of the second client according to the IP address of the second client corresponding to the called number, and send a second call request to each second client according to the network location.
  • the second call request may further carry the group tag of the established call group, so that the second client receiving the second call request can know the information of the established call group.
  • the MCPPT server can wait for the confirmation message returned by the second client to further confirm whether the second client in the temporary call group is ready to communicate with the first client. Make a call.
  • S140 Receive a first confirmation message sent by multiple second clients, and send a second confirmation message to the first client according to the first confirmation message, so that the first client and the multiple second clients are in the call group call.
  • the MCPPT server After receiving the first confirmation message sent by the second client, the MCPPT server learns the information of the second client that can make a call in the current call group, and sends it to the group management server, so that the group management server updates the second client in the call group End information.
  • the second client in the call group is currently in a call or is in an unanswered state, so that the return of the first confirmation message will time out.
  • the MCPPT server may further generate a second confirmation message according to the returned first confirmation message and the updated call group label.
  • the second confirmation message includes information about the second client that can make an intra-group call with the first client.
  • the MCPTT server After the group management server sends the updated call group label to the MCPPT server, the MCPTT server further sends a second confirmation message to the first client, so that the client can obtain the ability to communicate with the first client after receiving the second confirmation message.
  • the information to be exchanged may be voice, video, text, data, and so on.
  • the temporary call group may specifically be a voice group, a video group, or other types of groups, such as data services and location services.
  • the MCPPT server can send a second confirmation message to remind the first client to reselect the called number or wait for a period of time before initiating a group call request, or directly inform the first client of the failure to create a call group.
  • the embodiment of the present invention receives the first call request sent by the first client through the MCPTT server, and creates the member information of the call group according to the request contained in the first call request, and establishes the call group so that the first client can
  • the operation mode of temporary group call for multiple second clients is implemented in 3GPP, thereby improving the flexibility of the 3GPP communication mode; in addition, this application also sends the MCPTT server to multiple second clients in the corresponding clusters.
  • the terminal sends a second call request, and further updates the group label of the call group according to the first confirmation message returned by multiple second clients, which can improve the effectiveness of the call group and avoid the establishment of the call group due to all members being busy. Failure situation.
  • FIG. 3 is a schematic flowchart of another embodiment of the MCPPT group call method proposed in this application.
  • the method includes the following steps:
  • S210 Receive a registration request sent by the first client.
  • the MCPPT server may receive the registration request sent by the first client through the base station and the core network.
  • multiple second clients also need to register on the MCPPT server first when making calls within the call group with the first client.
  • S220 Generate a registration success message according to the registration request, and send it to the first client, so that the first client is successfully registered.
  • the MCPPT server learns the configuration information of the first client, such as call authority, cluster, IP address, and other information.
  • the MCPPT server registers the first client on the MCPPT server according to the configuration information of the first client.
  • the MCPPT server further generates a registration success message and sends it to the first client, so that the first client knows that it has successfully registered on the MCPPT server.
  • S230-S260 are consistent with S110-S140 in the foregoing embodiment, and will not be repeated here, please refer to the foregoing embodiment.
  • S270 Receive a call end message sent by the first client.
  • the MCPPT server may receive the call end message sent by the first client.
  • the MCPPT server transfers the message to the group management server.
  • the group management server releases the temporary call group, deletes the group label of the call group, and sends a message that the call group release is completed to the MCPPT server.
  • the MCPPT server may further delete the registration information of the first client and multiple second clients in the original call group on the MCPPT server.
  • FIG. 4 is a schematic flowchart of an embodiment of step S260 in FIG. 3. Wherein, step S260 may specifically include the following steps:
  • S261 Receive corresponding speech rights requests sent by multiple second clients, where the speech rights requests carry corresponding speech rights priorities.
  • the MCPPT server can learn the speaking right priority information of the corresponding second client while receiving the speaking right request sent by multiple second clients.
  • S262 Acquire the speaking right priority of multiple second clients according to the speaking right request, and arbitrate the multiple speaking right priority according to the strategy in the group.
  • the MCPPT server can arbitrate the speaking right priority of multiple second clients according to the strategy in the group.
  • the priority of the speaking right may be the level or authority of the multiple second clients in the call group.
  • S263 Notify the second client with the highest priority to talk with the first client.
  • the MCPPT server obtains the corresponding second client with the highest speaking right priority after arbitrating multiple speaking right priority speaking rights. And notify the second client to make an intra-group call with the first client.
  • the second client with a high priority of speaking rights can obtain the right to talk with the first client first, and when the second client with a lower priority of speaking rights is speaking, the second client with a higher priority of speaking rights is speaking. The end can also seize the right to speak. If two second clients with the same priority and priority press the PTT key at the same time, the MCPPT server will assign the right to talk with the first client to the second client that is pressed first.
  • the MCPPT group call method in this application can be used in the field of railway communication, and specifically can be used in communication between train drivers, train dispatchers, and station attendants.
  • the train driver corresponds to the first client
  • the train dispatcher and the station attendant correspond to multiple second clients
  • the first client and multiple second clients are in the same call group.
  • the priority of the train dispatcher’s speaking rights is higher than that of the station attendant.
  • the train dispatcher and the station attendant are in After sending a speaking right request to the MCPPT server, when the MCPPT server receives the session request, it first judges whether the conversation right with the train driver is currently occupied.
  • the MCPPT server will assign the conversation right to the train dispatcher.
  • the train dispatcher can also seize the right to speak, so that the conversation established between the train driver and the station attendant is transferred to the conversation between the train driver and the train dispatcher.
  • the MCPPT server when the first client and multiple second clients are in a call group call, by carrying the corresponding speaking right priority in the speaking right request, the MCPPT server can receive the speaking right request at the same time.
  • the priority of the second client’s speaking rights is arbitrated by the priority of the dialogue rights in the group strategy, which can avoid the confusion of the allocation of speaking rights when the first client and multiple second clients are talking in the call group Problem, thereby improving the fluency of the conversation.
  • FIG. 5 is a schematic diagram of the logical framework of an MCPPT server proposed in this application.
  • the MCPPT server 200 includes a memory 220, a processor 210, and a communication interface 230.
  • the memory 220 is connected to the processor 210, the memory 220 is used to store program instructions, and the communication interface 230 is used to send and receive data.
  • the processor 210 is configured to execute the MCPPT group call method in the foregoing embodiment according to program instructions.
  • the processor 210 may be used to execute program instructions to control the communication interface 230 to receive a first call request, and the first call request includes multiple called numbers; the processor 210 may be used to execute program instructions to control the communication interface 230 to receive a first call request; The number establishes a call group; the processor 210 can be used to execute program instructions to control the communication interface 230 to send a second call request to the second client corresponding to each called number; the processor 210 can be used to execute program instructions to control communication
  • the interface 230 receives the first confirmation message, and sends a second confirmation message to the first client according to the first confirmation message, so that the first client and multiple second clients can talk in the call group.
  • the processor 210 may also be referred to as a CPU (Central Processing Unit, central processing unit).
  • the processor 210 may be an integrated circuit chip with signal processing capabilities.
  • the processor 210 may also be a general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component .
  • the general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like.
  • FIG. 6 is a schematic flowchart of another embodiment of the MCPTT group call method provided by the present application.
  • the MCPTT group call method is applied to a communication system.
  • the communication system includes an MCPPT client 1, a base station and a core network, and an MCPPT server. , MCPPT client 2 and MCPPT client 3.
  • the MCPPT client 1 is the first client and is the initiator of the group call
  • the MCPPT client 2 and the MCPPT client 3 are the second clients and are members of the preselected call group for the first client to initiate the group call.
  • the method includes:
  • Step 1 The MCPPT client 1 generates a first call request, and sends the first call request to the MCPPT server through the base station and the core network.
  • the first call request includes multiple call numbers.
  • multiple call numbers correspond to MCPPT client 2 and MCPPT client 3 respectively.
  • Step 2 The MCPPT server receives the first call request through the base station and the core network, and obtains the member information of the called number in the call request initiated by the MCPPT client 1 according to the received first call request, and creates a call based on the call number Call the group.
  • the MCPPT server learns from the called number that the call group members requested by the MCPPT client 1 to be established include the MCPPT client 2 and the MCPPT client 3.
  • the MCPPT server in this application also includes a group management server, the MCPPT server can also generate a group label of the call group while creating the call group.
  • Step 3 The MCPPT server generates a second call request and sends it to the MCPPT client 2 and the MCPPT client 3.
  • the second call request carries the group label of the established call group.
  • Step 4 The MCPPT client 2 and the MCPPT client 3 respectively return the first confirmation message to the MCPPT server, so that the MCPPT server confirms whether the MCPPT client 2 and the MCPPT client 3 are idle or ready to join the call group.
  • the MCPPT server After receiving the first confirmation message, the MCPPT server updates the group label of the calling group according to the first confirmation message.
  • Step 5 The MCPPT server generates a second confirmation message according to the first confirmation message, and sends the second confirmation message to the MCPPT client 1 through the base station and the core network, so that the MCPPT client 1 obtains the group label of the created call group.
  • the MCPPT client 1 can learn whether the request for initiating a group call has been established according to the second confirmation message, and whether the group call members have been pre-selected whether changes or updates have been made.
  • Step 6 MCPPT client 1 talks with MCPPT client 2 and MCPPT client 3 in the call group.
  • Step 7 After the MCPPT client 1 completes the call with the MCPPT client 2 and the MCPPT client 3, it further sends a call end message to the MCPPT server through the base station and the core network.
  • Step 8 After receiving the call end message, the MCPPT server releases the call group and deletes the saved group label.
  • FIG. 7 is a schematic flowchart of another embodiment of the MCPTT group call method provided by the present application.
  • the MCPTT group call method is applied to a communication system.
  • the communication system includes an MCPPT client 1, a base station and a core network, and MCPPT Server, MCPPT client 2, MCPPT client 3 and MCPPT client 4.
  • MCPPT client 1 is the first client, which is the initiator of the group call
  • MCPPT client 2, MCPPT client 3, and MCPPT client 4 are the second clients, which are the first client to initiate the preselected call of the group call.
  • the method includes the following steps:
  • Step 1 The MCPPT client 1 generates a registration request and sends it to the MCPTT server through the base station and the core network.
  • the MCPPT client 2 and the MCPPT client 3 and the MCPPT client 4 all need to be registered on the MCPPT server before proceeding to the subsequent steps.
  • Step 2 The MCPTT server receives the registration request, and obtains the configuration information of the MCPPT client 1 carried in the registration request, such as call authority, cluster, IP address and other information.
  • the MCPPT server registers the MCPPT server 1 according to the configuration information, and generates a registration success message.
  • the MCPPT server further sends a registration success message to the MCPPT client 1 through the base station and the core network.
  • the MCPPT client 2 and the MCPPT client 3 and the MCPPT client 4 can also be registered on the MCPPT server in the above-mentioned manner. I will not repeat them here.
  • Step 3 MCPPT client 1 is successfully registered on the MCPPT server.
  • Step 4 The MCPPT client 1 generates the first call request, and sends it to the MCPPT server through the base and the core network.
  • the first call request includes multiple call numbers.
  • multiple call numbers correspond to MCPPT client 2, MCPPT client 3, and MCPPT client 4, respectively.
  • the first call request also carries authority information of the MCPPT client 1, so that the MCPPT server can determine whether the MCPPT client 1 has the authority to initiate a group call.
  • Step 5 The MCPPT server receives the first call request through the base station and the core network, and according to the received first call request, obtains the member information of the called number in the call request initiated by the MCPPT client 1 and creates a call based on the call number Call the group.
  • the MCPPT server learns from the called number that the call group members requested by the MCPPT client 1 to be established include the MCPPT client 2, the MCPPT client 3, and the MCPPT client 4.
  • the MCPPT server in this application also includes a group management server, the MCPPT server can also generate a group label of the call group while creating the call group.
  • the MCPPT server determines that the MCPPT client 1 does not have the authority to initiate a group call, it directly sends a message requesting to create a call group failure to the MCPPT client 1.
  • Step 6 The MCPPT server generates a second call request and sends it to the MCPPT client 2, MCPPT client 3, and MCPPT client 4.
  • the second call request carries the group label of the established call group.
  • Step 7 The MCPPT client 2 and the MCPPT client 4 respectively return a first confirmation message to the MCPPT server, so that the MCPPT server confirms whether the MCPPT client 2 and the MCPPT client 4 are idle or ready to join the call group.
  • the MCPPT client 3 is in an unanswered state, and returns the first confirmation message to the MCPPT server to time out.
  • the MCPPT client 2 and MCPPT client 3, and the MCPPT client 4 are the preselected members of the MCPPT client 1 initiating the call group, and only the MCPPT client 2 and the MCPPT client 4 confirm to join the call group.
  • the MCPPT server After receiving the first confirmation message, the MCPPT server updates the member information and group label of the calling group according to the first confirmation message.
  • Step 8 The MCPPT server generates a second confirmation message according to the first confirmation message, and sends the second confirmation message to the MCPPT client 1 through the base station and the core network, so that the MCPPT client 1 obtains the group label of the created call group. Wherein, the MCPPT client 1 learns through the second confirmation message that the MCPPT client 3 cannot join the call group.
  • Step 9 The MCPPT client 2 and the MCPPT client 4 compete with the MCPPT client 1 for the speaking right, and at the same time send a speaking right request message to the MCPPT server.
  • the speaking right request message includes the MCPPT client 2 and MCPPT client 4 speaking right priorities.
  • Step 10 The MCPPT server responds to the received speaking right request message, and obtains the speaking right priority of MCPPT client 2 and MCPPT client 4.
  • the priority of the MCPPT server's conversation rights is arbitrated, so that the client with a higher priority of the conversation has priority to talk with the MCPPT client 1.
  • Step 11 In this embodiment, the speaking right priority of MCPPT client 4 is higher than that of MCPPT client 2.
  • MCPPT client 2 and MCPPT client 4 initiate a speaking right request at the same time, the MCPPT server arbitrates through the priority of speaking right , Assign the right to speak to the MCPPT client 4, and notify the MCPPT client 4 to talk in the call group.
  • the voice rights priority of MCPPT client 2 and MCPPT client 4 can be sent to the MCPPT server at one time following the first confirmation message, so that when the MCPPT server updates the call group member information, it increases the voice priority of each member at the same time. level. Therefore, when the MCPPT client 2 and the MCPPT client 4 initiate a session request, they can directly arbitrate according to the corresponding speaking right priority and allocate the speaking right.
  • Step 12 MCPPT client 1 and MCPPT client 4 talk in the call group.
  • the interactive information may be voice, video, text, data, and so on.
  • the call group may specifically be a voice group, a video group, or other types of groups, such as data services, location services, and so on.
  • the MCPPT server can allocate speaking rights again according to the received speaking rights request. For example, if there is currently no user and MCPPT client 1, MCPPT client 2 requests to talk to MCPPT client 1, and the MCPPT server can directly assign the right to speak to MCPPT client 2, so that MCPPT client 2 and MCPPT client 1 are in a call Make a call in the group.
  • Step 13 After the MCPPT client 1 completes the call with the members of the call group, it further generates a call end message and sends it to the MCPPT server through the base station and the core network.
  • Step 14 After receiving the call end message, the MCPPT server releases the call group and deletes the saved group label.
  • this application proposes an MCPTT group call method, server and communication system.
  • the first call request sent by the first client is received through the MCPTT server, and the member information of the call group is created according to the request contained in the first call request, and the call group is established, so that the first client can realize multi-party in 3GPP The operation mode of a temporary group call by a second client, thereby improving the flexibility of the 3GPP communication mode;
  • this application also sends a second call request to multiple second clients in the corresponding clusters through the MCPTT server According to the first confirmation message returned by multiple second clients and further update the group label of the call group, the effectiveness of the call group can be improved, and the failure of the call group establishment due to all members being busy can be avoided; further,
  • the MCPPT server can obtain multiple speaking right requests at the same time. Second, the client’s voice priority is arbitrated through

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Telephonic Communication Services (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente invention concerne un procédé d'appel de groupe MCPTT, un serveur et un système de communication. Le procédé consiste à : recevoir une première demande d'appel envoyée par un premier client, la première demande d'appel comprenant une pluralité de numéros appelés ; établir un groupe d'appels selon la pluralité de numéros appelés ; envoyer une seconde demande d'appel à un second client correspondant à chaque numéro appelé ; et recevoir un premier message d'accusé de réception envoyé depuis une pluralité de seconds clients, et selon le premier message d'accusé de réception, envoyer un second message d'accusé de réception au premier client, de sorte que dans le groupe d'appel, le premier client effectue un appel avec la pluralité de seconds clients. À l'aide du procédé, la présente invention peut améliorer la flexibilité d'un mode de communication 3GPP, et peut éviter l'échec d'établissement d'un groupe appelant.
PCT/CN2020/071344 2020-01-10 2020-01-10 Procédé d'appel de groupe mcptt, serveur et système de communication WO2021138894A1 (fr)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101355612A (zh) * 2008-09-22 2009-01-28 深圳华为通信技术有限公司 终端设备、网络设备及快速建立电话会议的方法
WO2016182326A1 (fr) * 2015-05-11 2016-11-17 Samsung Electronics Co., Ltd. Terminaux et procédé de communication entre ceux-ci
CN107872769A (zh) * 2016-09-28 2018-04-03 成都鼎桥通信技术有限公司 临时群组建立、释放方法及装置
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WO2016182326A1 (fr) * 2015-05-11 2016-11-17 Samsung Electronics Co., Ltd. Terminaux et procédé de communication entre ceux-ci
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