WO2014101008A1 - Procédé, serveur, terminal et système de communication ptt - Google Patents

Procédé, serveur, terminal et système de communication ptt Download PDF

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Publication number
WO2014101008A1
WO2014101008A1 PCT/CN2012/087555 CN2012087555W WO2014101008A1 WO 2014101008 A1 WO2014101008 A1 WO 2014101008A1 CN 2012087555 W CN2012087555 W CN 2012087555W WO 2014101008 A1 WO2014101008 A1 WO 2014101008A1
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WO
WIPO (PCT)
Prior art keywords
group
terminal
predefined area
message
ptt communication
Prior art date
Application number
PCT/CN2012/087555
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English (en)
Chinese (zh)
Inventor
文华
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CN201280025003.XA priority Critical patent/CN103843373B/zh
Priority to PCT/CN2012/087555 priority patent/WO2014101008A1/fr
Publication of WO2014101008A1 publication Critical patent/WO2014101008A1/fr

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Classifications

    • 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

Definitions

  • the embodiments of the present invention relate to communication technologies, and in particular, to a communication method, a server, a terminal, and a system. Background technique
  • Push To Talk (referred to as PTT) communication is a half-duplex communication method between multiple members belonging to the same group.
  • the basic form is as follows: When a user presses the PTT button on the terminal, the media stream can be transmitted to the members of the same group through the communication network; after the PTT button is released, the media stream stops transmitting.
  • PTT communication in a predefined area means that users in the same group can only perform PTT communication in a predefined area.
  • the characteristics are: When a group is performing PTT communication, if a group member moves to the group Outside the predefined area of the group, he will exit the PTT communication; if a member belonging to the group enters the predefined area of the group, he will join the PTT communication.
  • GSM-R Mobile Communications for Railways
  • MGW Mobile Switching Centre
  • HLR Home Location Register
  • BSC Base Station Controller
  • BTS Base Transceiver Station
  • Embodiments of the present invention provide a PTT communication method, server, terminal, and system to reduce implementation cost of PTT communication in a predefined area.
  • a PTT communication method including: a server receiving a PTT communication establishment request sent by a terminal, where the PTT communication establishment request carries a group identifier and a cell identifier of a cell where the terminal is currently located; Determining the predefined area information of the group corresponding to the group identifier according to the group identifier; determining whether the terminal is located according to the predefined area information that is queried and the cell identifier of the current cell of the terminal In the predefined area of the group; according to the judgment result, the PTT communication establishment response is sent to the terminal.
  • the sending, according to the determining result, the PTT communication setup response to the terminal includes: if the terminal is located in a predefined area of the group Transmitting a PTT communication setup response to the terminal, where the PTT communication setup response carries the group identifier, the predefined area information of the group, where the PTT communication setup response includes PTT communication established.
  • Message or PTT communication allows the establishment of a message.
  • a second possible implementation manner of the first aspect if the terminal is located in a predefined area of the group, sending the terminal to the terminal
  • the PTT communication establishment response specifically includes: if the PTT communication of the group corresponding to the group identifier is established, sending a PTT communication established message to the terminal; if the PTT communication of the group corresponding to the group identifier is not established And sending a PTT communication permission establishment message to the terminal.
  • the method further includes: The other terminal of the group sends a paging message, where the paging message carries the group identifier of the group and the predefined area information of the group; and the other terminals that receive the group send through the wireless IP network.
  • a paging response message where the paging response message carries the group identity of the group, and the paging response message is that the other terminal is determined to be currently in the predefined area according to the cell identity of the cell in which the current cell is located. Sent within and after.
  • the sending, according to the determining result, the PTT communication setup response to the terminal includes: if the terminal is located in a predefined area of the group In addition, a PTT communication setup response is sent to the terminal, where the PTT communication setup response includes a message that the PTT communication setup fails.
  • any one of the first to fourth possible implementation manners of the first aspect in a fifth possible implementation manner of the first aspect, when any terminal of the group leaves When the predefined area of the group is used, the method further includes: receiving a departure sent by the leaving terminal a message of the predefined area, where the message leaving the predefined area carries the terminal identifier of the leaving terminal and the group identity of the group; and the left terminal is moved out of the PTT communication of the group.
  • any one of the first to fifth possible implementation manners of the first aspect in a sixth possible implementation manner of the first aspect, when any terminal of the group enters When the predefined area of the group is used, the method further includes: receiving a message that is sent by the ingress terminal to enter a predefined area, where the message that enters the predefined area carries the terminal identifier of the incoming terminal and a group identity of the group; adding the entered terminal to a PTT communication of the group.
  • any one of the first to sixth possible implementation manners of the first aspect in a seventh possible implementation manner of the first aspect, the method further includes: receiving, by the terminal that wants to end PPT communication, a call termination request; sending a call end message to all terminals of the group, so that all terminals of the group delete the Predefined area information for the group.
  • an embodiment of the present invention provides a PTT communication method, including: a terminal sending a PTT communication establishment request to a server, where the PTT communication establishment request carries a group identifier and a cell identifier of a cell where the terminal is currently located; Determining, by the server, a PTT communication establishment response, where the PTT communication establishment response is that the server determines, according to the predefined area information of the group corresponding to the group identifier, and the cell identifier of the current cell of the terminal, Located in a predefined area of the group and sent according to the judgment result; determining whether to join the PPT communication according to the PPT communication establishment response.
  • the PTT communication setup response is sent when the server determines that the terminal is located outside a predefined area of the group, where The PTT communication setup response includes a message that the PTT communication setup failed.
  • the PTT communication setup response is sent when the server determines that the terminal is located in a predefined area of the group.
  • the PTT communication setup response includes a PTT communication established message or a PTT communication permission establishment message, and the PTT communication establishment response carries the group identifier of the group, and the predefined area information of the group.
  • the method further includes: saving the group Predefined area information.
  • the method when the terminal moves, the method further includes: moving, according to the saved predefined area information, the terminal Determining, by the cell identifier of the cell, whether the terminal leaves a predefined area of the group; when the determination result is yes, sending a message leaving the predefined area to the server, where the message leaving the predefined area carries Determining the terminal identifier and the group identifier of the terminal, so that the server moves the terminal out of the PTT communication of the group.
  • the method further includes: when the terminal When moving again, determining whether the terminal enters a predefined area of the group according to the saved predefined area information and the cell identifier of the terminal moving to the cell; when the determination result is yes, sending the advancement to the server Defining a message of the area, where the message entering the predefined area carries a terminal identifier and a group identifier, so that the server joins the terminal to the group
  • the method further includes: receiving, sending, by the server a call end message, the call end message carrying the group identifier of the group; deleting the locally saved predefined area information of the group.
  • an embodiment of the present invention provides a PTT communication method, including: determining, by a server, a PTT communication that allows a group to be established; and transmitting, to the terminal of the group, a paging message of a PTT communication of the group, where the The call message carries the group identifier of the group and the predefined area information of the group.
  • the paging response message sent by the terminal of the group is received, where the paging response message carries the group identifier of the group,
  • the paging response message is sent by the terminal after determining that the terminal is currently within the predefined area according to the cell identity of the current cell of the current cell.
  • the third aspect or the first possible implementation manner of the third aspect in a second possible implementation manner of the third aspect, when any terminal of the group leaves a predefined area of the group And the message that is sent by the leaving terminal to leave the predefined area, where the message leaving the predefined area carries the terminal identifier of the leaving terminal and the group identifier of the group; The leaving terminal moves out of the group's PTT communication.
  • the method includes: receiving a message that is sent by a terminal of the group to enter a predefined area, where the message entering the predefined area carries a terminal identifier and a group identifier; and the terminal is added to the PTT communication of the group.
  • any one of the first to third possible implementation manners of the third aspect in a fourth possible implementation manner of the third aspect, when any terminal of the group When the PPT communication is to be ended, the method further includes: receiving a call end request sent by the terminal that wants to end the PPT communication; sending a call end message to all terminals of the group, so that all the terminals of the group delete the group Predefined area information for the group.
  • an embodiment of the present invention provides a PTT communication method, including: receiving, by a terminal, a paging message of a PTT communication of a group sent by a server, where the paging message carries a group identifier of the group and the Pre-defined area information of the group; corresponding to the group identifier, pre-defined area information of the group is saved.
  • the fourth aspect in a first possible implementation manner of the fourth aspect, determining, according to the cell identifier of the cell where the terminal is currently located, and the predefined area information, whether the current location is within the predefined area of the group. And if the terminal is currently located in the predefined area of the group, sending a paging response message to the server, where the paging response message carries the group identifier of the group.
  • the method further includes: determining, according to the saved predefined area information and the cell identifier of the terminal moving to the cell, whether the terminal enters a predefined area of the group; when the terminal enters a predefined area of the group Sending a message to the server to enter a predefined area, where the message entering the predefined area carries the terminal identifier of the terminal and the group identifier of the group, so that the server will The terminal joins the PTT communication of the group.
  • the method further includes: Preserving the predefined area information and the cell identity of the terminal moving to the cell determining whether the terminal leaves a predefined area of the group; when the terminal leaves a predefined area of the group, to the server Sending a message leaving the predefined area, where the message leaving the predefined area carries the terminal identifier of the terminal and the group identity of the group, so that the server moves the terminal out of the PTT of the group Communication.
  • the method further includes: receiving a call end message sent by the server, where the call end message carries a group identifier of the group; deleting pre-defined area information of the group saved locally .
  • an embodiment of the present invention provides a server, including: a receiving module, configured to receive a PTT communication establishment request sent by a terminal, where the PTT communication establishment request carries a group identifier and a cell identifier of a cell where the terminal is currently located a querying module, configured to query, according to the group identifier, predefined area information of a group corresponding to the group identifier, and a determining module, configured to: according to the predefined area information that is queried and the current cell of the terminal a cell identifier, determining whether the terminal is located in a predefined area of the group; and sending, by the sending module, a PTT communication establishment response to the terminal according to the determination result.
  • a receiving module configured to receive a PTT communication establishment request sent by a terminal, where the PTT communication establishment request carries a group identifier and a cell identifier of a cell where the terminal is currently located
  • a querying module configured to query, according to the group identifier, predefined area information
  • the PTT communication establishment response when the terminal is located in a predefined area of the group, the PTT communication establishment response includes a PTT communication established message or a PTT The communication allows a message to be established, and the PTT communication setup response carries the group identifier, the predefined area information of the group.
  • the sending module is specifically configured to: if the PTT communication of the group corresponding to the group identifier is established And sending a PTT communication established message to the terminal; if the PTT communication of the group corresponding to the group identifier is not established, sending a PTT communication permission establishment message to the terminal.
  • the sending module is further configured to: if the PTT communication of the group corresponding to the group identifier is not established And sending a paging message to the other terminal of the group, where the paging message carries the group identifier and the predefined area information of the group; the receiving module is further configured to: receive the group a paging response message sent by another terminal of the group, where the paging response message carries the group The group identifier, the paging response message is sent by the other terminal after determining that the current location is within the predefined area according to the cell identity of the cell in which the current cell is located.
  • the sending module is specifically configured to: send the PTT communication to the terminal if the terminal is located outside a predefined area of the group Establishing a response, wherein the PTT communication establishment response includes a message that the PTT communication establishment fails.
  • any one of the first to fourth possible implementation manners of the fifth aspect in a fifth possible implementation manner of the fifth aspect, when any terminal of the group leaves
  • the receiving module is further configured to receive a message that is sent by the leaving terminal to leave a predefined area, where the message leaving the predefined area carries the terminal of the leaving terminal Identifying and group identification of the group;
  • the method further includes: a removal module, configured to move the leaving terminal out of the group of PTT communications.
  • a removal module configured to move the leaving terminal out of the group of PTT communications.
  • any one of the first to the sixth possible implementation manners of the fifth aspect in a seventh possible implementation manner of the fifth aspect, is further configured to receive, by the terminal that is to end the PPT communication, a call termination request, where the sending module is further configured to send a call end message to all terminals of the group, so that All terminals of the group delete the predefined area information of the group.
  • an embodiment of the present invention provides a terminal, including: a sending module, configured to send a PTT communication establishment request to a server, where the PTT communication establishment request carries a group identifier and a cell identifier of a cell where the terminal is currently located; a receiving module, configured to receive a PTT communication setup response sent by the server, where the PTT communication setup response is a predefined area information of the group corresponding to the group identifier by the server, and a cell of a cell where the terminal is currently located And determining, by the processing module, whether the terminal is located in a predefined area of the group and sent according to the determination result, and determining, by the PPT communication establishment response, whether to join the PPT communication.
  • the PTT communication setup response when the PTT communication setup response is sent when the server determines that the terminal is located outside a predefined area of the group
  • the PTT communication establishment response includes a message that the PTT communication establishment fails.
  • the PTT communication setup response when the PTT communication setup response is sent when the server determines that the terminal is located in a predefined area of the group
  • the PTT communication establishment response includes a PTT communication established message and a PTT communication permission establishment message, and carries the group identifier of the group, and the predefined area information of the group.
  • the method further includes: a storage module, configured to save the predefined area information of the group.
  • the method further includes: an area monitoring module, configured to: when the terminal moves, according to the saved predefined area information And the cell identifier that is sent by the terminal to the cell to determine whether the terminal leaves a predefined area of the group; the sending module is further configured to: if the area monitoring module determines that the terminal leaves the group Defining an area, sending a message leaving the predefined area to the server, where the message leaving the predefined area carries the terminal identifier and the group identifier of the terminal, so that the server moves the terminal out of the Group PTT communication.
  • an area monitoring module configured to: when the terminal moves, according to the saved predefined area information And the cell identifier that is sent by the terminal to the cell to determine whether the terminal leaves a predefined area of the group
  • the sending module is further configured to: if the area monitoring module determines that the terminal leaves the group Defining an area, sending a message leaving the predefined area to the server, where the message leaving the predefined area carries the terminal identifier and the group identifier
  • the area monitoring module is further configured to: when the terminal moves again, according to the saved predefined area The information and the cell identifier of the terminal moving to the cell determine whether the terminal enters a predefined area of the group; the sending module is further configured to: if the area monitoring module determines that the terminal enters the group a predefined area, the message sent to the predefined area is sent to the server, where the message entering the predefined area carries the terminal identifier and the group identifier, so that the server joins the terminal to the group. PTT communication.
  • the receiving module is further configured to: receive a call end message sent by the server, the call end message The group identifier of the group is carried in the group; and the deleting module is configured to delete the predefined area information of the group that is locally saved.
  • the embodiment of the present invention provides a server, including: a processing module, configured to determine a PTT communication that is allowed to establish a group; and a sending module, configured to send the group to the terminal of the group Paging message of the PTT communication, the paging message carrying the group of the group Identify and pre-defined area information for the group.
  • the method further includes: a receiving module, configured to receive a paging response message sent by the terminal of the group, where the paging response message carries The group identity of the group, the paging response message is sent by the terminal after determining that the terminal is currently within the predefined area according to the cell identity of the current cell.
  • the receiving module when any terminal of the group leaves a predefined area of the group, the receiving module is further configured to receive the a message sent by the leaving terminal to leave the predefined area, where the message leaving the predefined area carries the terminal identifier of the leaving terminal and the group identifier of the group; the server further includes: a removal module, The PTT communication of the group is moved out of the leaving terminal.
  • the receiving module is further configured to: receive a message that is sent by the ingress terminal and enter a predefined area, where the message that enters the predefined area carries the terminal identifier of the incoming terminal and the group The group identifier of the group; the server further includes: an adding module, adding the entered terminal to the PTT communication of the group.
  • the receiving module is further configured to: after receiving the paging response message sent by the terminal that wants to end the PPT communication, receive a call end request sent by the terminal of the group; the sending module further And sending, to all terminals of the group, a call end message, so that all terminals of the group delete the predefined area information of the group.
  • an embodiment of the present invention provides a terminal, including: a receiving module, configured to receive a paging message of a PTT communication of a group sent by a server, where the paging message carries the group a group identifier and predefined area information of the group; a storage module, configured to save the predefined area information of the group corresponding to the group identifier.
  • the method further includes: an area monitoring module, configured to determine, according to a cell identifier of the current cell of the terminal, and the predefined area information, Whether it is located in a predefined area of the group; a sending module, configured to send a page to the server if the terminal is currently located in a predefined area of the group In response to the message, the paging response message carries the group identity of the group.
  • the area monitoring module is further configured to: if the terminal is currently located in a predefined area of the group In addition, after the terminal moves, determining whether the terminal enters a predefined area of the group according to the saved predefined area information and the cell identifier of the terminal moving to the cell; the sending module is further configured to: When the area monitoring module determines that the terminal enters a predefined area of the group, sending a message to the server to enter a predefined area, where the message entering the predefined area carries the terminal identifier of the terminal and The group identity of the group, such that the server joins the terminal to the PTT communication of the group.
  • the area monitoring module is further configured to: After the server sends a message to enter a predefined area, or after sending a paging response message to the server, when the terminal moves, determining according to the saved predefined area information and the cell identity of the terminal moving to the cell Whether the terminal leaves a predefined area of the group; the sending module is further configured to: when the area monitoring module determines that the terminal leaves a predefined area of the group, send a departure pre- The message of the area is defined, and the message leaving the predefined area carries the terminal identifier of the terminal and the group identity of the group, so that the server moves the terminal out of the PTT communication of the group.
  • the receiving module is further configured to: After receiving the paging message of the PTT communication of the group sent by the server, receiving the call end message sent by the server, where the call end message carries the group identifier of the group; further comprising: a deleting module, configured to: Delete the predefined area information of the group saved locally.
  • the ninth aspect provides a communication system, including the server, any one of the sixth aspect or the sixth aspect, in any one possible implementation manner of the fifth aspect or the fifth aspect And a terminal in any one of the possible implementations of the eighth aspect or the eighth aspect.
  • the ninth aspect provides a communication system, including the server in any one of the possible implementation manners of the seventh aspect or the seventh aspect, and at least one possible implementation of the eighth aspect or the eighth aspect
  • the terminal in the way.
  • the PTT communication method, the server, the terminal, and the system provided by the embodiment of the present invention enable the terminal to transmit the predefined area information of the group to all the registered terminals of the group when the communication is established, so that the terminal can determine whether the current terminal is currently It is located within a predefined area of the group, so as to realize the function of communication only within the predefined area; communication between the server and the terminal through the wireless IP network does not need to change any network element in the mobile network.
  • Embodiment 1 is a flowchart of Embodiment 1 of a PTT communication method according to the present invention
  • Embodiment 2 is a flowchart of Embodiment 2 of a PTT communication method according to the present invention
  • Embodiment 3 is a flowchart of Embodiment 3 of a PTT communication method according to the present invention
  • Embodiment 4 is a flowchart of Embodiment 4 of a PTT communication method according to the present invention
  • FIG. 5 is a flowchart of Embodiment 5 of a PTT communication method according to the present invention.
  • Embodiment 6 is a flowchart of Embodiment 6 of a PTT communication method according to the present invention.
  • Embodiment 7 is a flowchart of Embodiment 7 of a PTT communication method according to the present invention.
  • Embodiment 8 is a flowchart of Embodiment 8 of a PTT communication method according to the present invention.
  • FIG. 9 is a signaling flowchart of Embodiment 9 of a PTT communication method according to the present invention.
  • Embodiment 1 of a server according to the present invention is a schematic structural diagram of Embodiment 1 of a server according to the present invention.
  • Embodiment 11 is a schematic structural diagram of Embodiment 2 of a server according to the present invention.
  • Embodiment 1 of a terminal according to the present invention is a schematic structural diagram of Embodiment 1 of a terminal according to the present invention.
  • FIG. 13 is a schematic structural diagram of Embodiment 2 of a terminal according to the present invention.
  • Embodiment 3 of a server according to the present invention is a schematic structural diagram of Embodiment 3 of a server according to the present invention.
  • Embodiment 4 of a server according to the present invention is a schematic structural diagram of Embodiment 4 of a server according to the present invention.
  • FIG. 16 is a schematic structural diagram of Embodiment 3 of a terminal according to the present invention.
  • FIG. 17 is a schematic structural diagram of Embodiment 4 of a terminal according to the present invention.
  • Embodiment 18 is a schematic structural diagram of Embodiment 1 of a communication system according to the present invention
  • 19 is a schematic structural diagram of Embodiment 2 of a communication system according to the present invention
  • Embodiment 5 of a server according to the present invention is a schematic structural diagram of Embodiment 5 of a server according to the present invention.
  • FIG. 21 is a schematic structural diagram of Embodiment 5 of a terminal according to the present invention.
  • FIG. 22 is a schematic structural diagram of Embodiment 6 of a server according to the present invention.
  • FIG. 23 is a schematic structural diagram of Embodiment 6 of a terminal according to the present invention.
  • the technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention.
  • the embodiments are a part of the embodiments of the invention, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.
  • the predefined area information of at least one group is added to the group attribute of the PTT server (for example, the cell identification list of the corresponding group), which means that for a certain group, only in its predefined area ( For example, in the cells corresponding to the cell identifier list, the PPT communication of the group can be performed.
  • This field can be maintained by the user or by the computer.
  • the embodiment of the present invention does not impose any limitation.
  • the following functions are added to the PPT application of the terminal:
  • the PPT group information that belongs to the terminal and is in communication is saved, and includes: a group identifier, and predefined area information corresponding to the group.
  • the saved information can be automatically maintained by the system according to the signaling interaction.
  • the function of acquiring the cell identifier of the current cell of the terminal in real time is added, for example, the command interface of the wireless modem (modem) in the terminal is called, so that the current cell of the terminal is obtained in real time.
  • Cell identity a wireless modem is a necessary module in a mobile terminal, and the module cooperates with a wireless network to complete a wireless transmission function. This module provides a command interface for external calls. In the interface command set, you can set the command to query the cell ID of the cell where the terminal is currently located.
  • the terminal can forward the information of the cell in which it is currently located to the server in real time, and the server can determine whether the terminal is in the predetermined area according to the predefined area information of the pre-stored group, thereby determining whether The terminal joins the PPT communication of the group.
  • the server can modify the configuration of the server and the terminal, and the PPT communication in the predefined area can be realized without adapting and modifying the wireless network, thereby reducing the requirement of the PPT communication to the wireless network and reducing the cost.
  • a wireless IP network interconnection protocol
  • the network communicates.
  • the wireless IP network can be any wireless network supporting the IP transmission protocol, such as the wireless packet network of the mobile communication carrier;
  • the server can be a computer capable of carrying the PTT communication application and connecting to the wireless IP network;
  • It may be a terminal device capable of carrying a PTT communication application and capable of accessing a wireless IP network, such as a handheld terminal or an in-vehicle terminal, and each terminal belongs to at least one group corresponding to the group information saved in the server, that is, the terminal. Is a member of a group.
  • FIG. 1 is a flowchart of Embodiment 1 of a PTT communication method according to the present invention.
  • the execution body of this embodiment is a server. As shown in FIG. 1, the method in this embodiment may include:
  • Step 101 The server receives a PTT communication establishment request sent by the terminal, where the PTT communication establishment request carries a group identifier and a cell identifier of a cell where the terminal is currently located.
  • the terminal needs to open the PTT communication application before it can interact with the server.
  • the terminal logs in.
  • the specific process is as follows: The terminal sends a registration message to the server, where the registration message carries the terminal identifier and the IP address of the terminal.
  • the server will locally store the mapping relationship between the terminal identifier and the IP address of the terminal.
  • the terminal will always use the IP address to communicate with the server until the terminal exits the PTT communication application.
  • the server regards the terminal as an offline state, and deletes the mapping relationship between the terminal identifier of the terminal and the IP address of the terminal.
  • step 101 After the terminal opens the PTT communication application, selects a group in which the terminal is located, and sends a PTT communication establishment request, and the server receives a cell identifier including the group identifier and the cell currently located by the terminal.
  • the PTT communication establishes a request, and the server can determine the terminal identifier of the terminal by using the IP address sent by the request.
  • the PTT communication establishment request is a request message of the user plane, and the terminal may send the request message to the server through the wireless IP network in the form of an IP data packet, without involving the control plane signaling in the communication network, and the terminal and the server are both Control plane signaling communication with the communication network itself is not performed.
  • Step 102 Query, according to the group identifier, the predefined area information of the group corresponding to the group identifier.
  • the server stores predefined area information of each group.
  • the predefined area information may be a cell identifier of all cells in the predefined area.
  • Step 103 Determine, according to the queried predefined area information and the cell identifier of the cell where the terminal is currently located, whether the terminal is located in a predefined area of the group. Specifically, by traversing all the cell identifiers of the predefined area, it is determined whether the cell identity of the cell where the terminal is currently located matches one of the cell identifiers of the predefined area.
  • Step 104 Send a PTT communication setup response to the terminal according to the judgment result.
  • the terminal if the terminal is located in a predefined area of the group, sending a PTT communication setup response to the terminal, where the PTT communication setup response carries the group identifier of the group, the group Predefined area information for the group.
  • the PTT communication setup response carries the group identifier of the group, so that the terminal can determine, according to the group identifier, which group the PTT communication setup response corresponds to, thereby determining whether to join the group.
  • the PTT communication setup response carries the predefined information of the group, so that the terminal of the group can determine for itself whether it is located in a predefined area of the group.
  • the PTT communication setup response includes a PTT communication established message and a PTT communication permission establishment message. Specifically, if the group that the terminal wants to establish the PTT communication is currently performing PTT communication, the server sends a PTT communication established message to the terminal; If the PTT communication of the group that the terminal wants to establish PTT communication is not established, the server sends a PTT communication permission establishment message to the terminal.
  • the PTT communication setup response sent to the terminal includes a message that the PTT communication setup failed.
  • the server when the server receives the PTT communication establishment request sent by the terminal, the server queries and determines whether the terminal is located in a predefined area of the group for which the PTT communication is to be performed, and sends a different PTT to the terminal according to the determination result.
  • the communication establishment response implements a predefined area function of the PTT communication establishment phase; and when the terminal is located within the predefined area of the group, the PTT communication establishment response sent to the terminal carries the group identifier of the group And pre-defined area information, so that the terminal can determine whether it is located within the predefined area, so that the terminal can perform different operations according to the determined situation, thereby implementing the predefined area function in the PTT communication process;
  • the information exchange between the server and the terminal is realized through the wireless IP network, and the information exchanged is the information of the user plane for the wireless IP network, and does not need to interact with the wireless IP network itself, nor does it involve communication.
  • Control plane signaling in the network that is, the method of this embodiment, only To provide a server supporting the method and a terminal supporting the method, the server and the terminal can communicate through any existing wireless IP network, and do not need to change any network element in the existing communication network, thereby realizing Based on the existing mobile network, the PTT communication has the function of pre-defined area, which reduces the implementation cost of the PTT communication of the predefined area.
  • 2 is a flowchart of Embodiment 2 of a PTT communication method according to the present invention.
  • the execution body of this embodiment is a server. As shown in the figure, the method in this embodiment may include:
  • Step 201 The server receives a PTT communication establishment request sent by the terminal, where the PTT communication establishment request carries a group identifier and a cell identifier of a cell where the terminal is currently located.
  • Step 202 Query, according to the group identifier, the predefined area information of the group corresponding to the group identifier.
  • Step 203 Determine, according to the queried predefined area information and the cell identifier of the cell where the terminal is currently located, whether the terminal is located in a predefined area of the group.
  • Step 204 Send a PTT communication setup response to the terminal according to the determination result.
  • the PTT communication establishment response sent to the terminal includes a message that the PTT communication establishment fails, and the PTT communication establishment failure message may also be carried.
  • the reason for the failure for example: The terminal is outside the predefined area of the group.
  • the PTT communication setup response includes a PTT communication established message and a PTT communication allowed setup message.
  • the server sends a PTT communication established message to the terminal, and the terminal may directly join the PTT communication of the group; If the PTT communication of the group that the terminal wants to establish the PTT communication is not established, the server sends a PTT communication permission establishment message to the terminal. In this case, the following steps are also required to perform the PTT communication of the group.
  • Step 205 Send a paging message to the other terminals of the group, where the paging message carries the group identifier of the group and the predefined area information of the group.
  • the server will send a paging message to all other registered terminals of the group except for transmitting a PTT communication setup request.
  • the server does not judge whether the other terminals are in the predefined area, but carries the predefined area information in the paging message and sends it to the terminal, and the terminal determines whether it is within the predefined area.
  • Step 206 Receive a paging response message sent by another terminal of the group, where the paging response is The message identifier of the group is carried in the message, and the paging response message is sent by the other terminal after determining that the terminal is currently in the predefined area according to the cell identity of the cell in which the current cell is located.
  • the terminal determines that it is currently outside the predefined area of the group, it does not send a page response message to the server.
  • Step 207 Receive a message that is sent by the terminal of the group to leave a predefined area, where the message leaving the predefined area carries the terminal identifier of the terminal and the group identifier of the group.
  • Step 208 Move the terminal out of the PTT communication of the group.
  • the server further determines whether the terminal is a host terminal: if the terminal is a non-talking terminal, stopping sending the media stream of the calling terminal to the terminal; if the terminal is the main terminal, translating and releasing the right to speak , and update the status of "No Speaker” of the group to "No", so that other terminals in the group that are conducting PTT communication can apply for the right to speak.
  • Steps 207 and 208 are a set of optional steps, where the specific scenario is: the current cell of the terminal in the group that is undergoing PTT communication changes, when the terminal determines that the terminal has moved to a predefined area of the group. The message leaving the predefined area will be sent to the server, at which point the server performs steps 207, 208.
  • Step 209 Receive a message that the terminal of the group sends a predefined area, where the message that enters the predefined area carries the terminal identifier of the terminal and the group identifier of the group.
  • Steps 209 and 210 are a set of optional steps.
  • the specific scenario is as follows: The current cell of the terminal of the group changes. For example, after the server performs steps 207 and 208, the terminal continues to move and moves back to the predefined area. Within the time, the terminal will send a message to the server to enter the predefined area, at which time the server performs steps 209, 210.
  • Step 210 Add the terminal to the PTT communication of the group.
  • the server sends the media stream of the host terminal to the terminal.
  • Step 211 The terminal that receives the group sends a call end request.
  • Step 212 Send a call end message to all terminals of the group, so that all terminals of the group delete the predefined area information of the group.
  • any terminal that is performing PTT communication may send a call end request to the server, and after receiving the call end request, the server sends a call end message to all registered terminals of the group, so that the terminal deletes the call.
  • Predefined area information for the group is sent to the terminal of the group by the server, and the current cell of the terminal changes after receiving the PTT communication established message, the PTT communication permission establishment message or the paging message by the terminal.
  • the method of this embodiment can not change existing wireless
  • the IP network realizes the predefined area function of PTT communication, which reduces the implementation cost.
  • FIG. 3 is a flowchart of Embodiment 3 of a PTT communication method according to the present invention.
  • the execution body of this embodiment is a terminal that sends a PTT communication setup request.
  • the method in this embodiment may include: Step 301: A terminal sends a PTT communication setup request to a server, where the PTT communication setup request carries a group identifier and a cell identifier of a cell where the terminal is currently located.
  • the server may query the predefined area of the group by using the group identifier, so that it may be determined whether the terminal is currently located in a predefined area of the group.
  • Step 302 Receive a PTT communication establishment response sent by the server, where the PTT communication establishment response is a predefined area information of the group corresponding to the group identifier and a cell identifier of a current cell of the terminal, Determining whether the terminal is located in a predefined area of the group and transmitting according to the judgment result.
  • Step 303 Determine, according to the PPT communication establishment response, whether to join the PPT communication of the group.
  • the PTT communication setup response received by the terminal includes a PTT communication established message or a PTT communication permission establishment message, determining to join the PTT communication of the group; when the PTT communication establishment response received by the terminal includes a PTT If the communication establishment fails, it is determined that the PTT communication of the group cannot be joined.
  • the PTT communication setup request sent by the terminal to the server carries the group identifier and the current cell identifier of the terminal, so that the server can query the predefined area information of the group according to the group identifier, thereby determining whether the terminal is located.
  • implementing a predefined area function in the PTT communication establishment phase all interactions between the server and the terminal are through existing Wireless All the interaction information performed by the IP network is user plane information for the communication network, and does not involve communication network control plane signaling. Therefore, the method of this embodiment can implement PTT communication without changing the existing wireless IP network.
  • the predefined zone features reduce implementation costs.
  • Step 401 A terminal sends a PTT communication setup request to a server, where the PTT communication setup request carries a group identifier and a cell identifier of a cell where the terminal is currently located.
  • the received PTT communication establishment response sent by the server includes a message that the PTT communication establishment fails, and the message is that the server determines that the terminal is located in the Sent when the group ID corresponds to the group corresponding to the predefined area.
  • Step 402 Receive a PTT communication setup response sent by the server, where the PTT communication setup response carries the predefined identifier information of the group identifier and the group corresponding to the group identifier, where the PTT communication establishment response is The server sends, according to the predefined area information of the group corresponding to the group identifier and the cell identifier of the cell where the terminal is currently located, after determining that the terminal is located in a predefined area of the group.
  • the PTT communication setup response includes a PTT communication established message and PTT communication allows the establishment of a message. If the group that the terminal wants to establish PTT communication is currently performing PTT communication, the PTT communication establishment response sent by the server is a PTT communication established message, and the terminal can directly join the PTT communication of the group; if the terminal wants The PTT communication establishment of the group to establish the PTT communication is not established, and the PTT communication establishment response sent by the server is a PTT communication permission establishment message.
  • Step 403 Determine, according to the PPT communication establishment response, a PPT communication that joins the group.
  • Step 404 Save predefined area information of the group.
  • Step 405 When the terminal moves, determine, according to the saved predefined area information and the cell identity that the terminal moves to the cell, whether the terminal leaves a predefined area of the group.
  • Step 406 When the determination result is yes, send a message to the server to leave the predefined area, where the message leaving the predefined area carries the terminal identifier and the group identifier of the terminal, so that the server will The terminal moves out of the PTT communication of the group.
  • the terminal leaves the predefined area of the group, specifically, the cell where the terminal is located changes, the original cell is located in a predefined area of the group, and the current cell is located in the group. Outside of the predefined area.
  • Step 407 When the terminal moves again, determine, according to the saved predefined area information and the cell identifier that the terminal moves to the cell, whether the terminal enters a predefined area of the group.
  • Step 408 When the determination result is yes, send a message to the server to enter a predefined area, where the message entering the predefined area carries a terminal identifier and a group identifier, so that the server joins the terminal The group's PTT communication.
  • steps 407 and 408 The scenario of steps 407 and 408 is: the terminal moves outside the predefined area of the group and then moves back to the predefined area of the group. At this time, the message to enter the predefined area is sent to the server.
  • Step 409 Receive a call end message sent by the server, where the call end message carries a group identifier of the group.
  • the call end message is sent by the server after receiving a call end request sent by any terminal of the group that is performing PTT communication.
  • Step 410 Delete pre-defined area information of the group saved locally.
  • step 410 The purpose of step 410 is to stop the terminal from entering the predefined area or leaving the predefined area when the terminal enters or leaves the predefined area of the group after the PTT communication of the group ends.
  • the terminal establishes the predefined area information of the group carried in the response by using the PTT communication sent by the receiving server, and uses the predefined area information to determine whether it is currently located in the predefined area of the group when moving. Therefore, according to the determined situation, the server sends a message leaving the predefined area or entering the predefined area, so that the server moves the terminal out or joins the PTT communication of the group, thereby implementing a predefined area function of the PTT communication;
  • the interaction is performed through the existing wireless IP network. All the interaction information is the user plane information for the communication network, and does not involve the communication network control plane signaling. Therefore, the method of this embodiment may not change the existing The wireless IP network realizes the predefined area function of PTT communication, which reduces the implementation cost.
  • FIG. 5 is a flowchart of Embodiment 5 of a PTT communication method according to the present invention.
  • the execution body of this embodiment is a server. As shown in FIG. 5, the method in this embodiment may include:
  • Step 501 The server determines to allow PTT communication of the group to be established.
  • the specific scenario is, for example, the server receives the establishment of the PTT communication sent by one terminal of the group. The request, and after determining that the terminal is within a predefined area of the group, then the server determines to allow establishment of the group's PTT communication.
  • Step 502 Send a paging message of the PTT communication of the group to the terminal of the group, where the paging message carries a group identifier of the group and predefined area information of the group.
  • the target object that the server sends the paging message may be sent in the group except
  • the PTT communicates with other terminals than the requesting terminal.
  • the paging message carries the group identifier of the group and the predefined area information of the group, so that the terminal receiving the paging message can determine whether it is located according to the predefined area information of the group. Within the predefined area of the group.
  • the server carries the group identifier and the predefined area information of the group in the paging message sent by the server, so that the terminal can determine whether it is located in the predefined area, so that the terminal can judge according to the judgment.
  • the case performs different operations, such as returning a page response or not returning a page response, and transmitting a message entering or leaving a predefined area of the group during subsequent PTT communication, thereby implementing a predefined area of PTT communication.
  • the information interaction between the server and the terminal can be realized through the existing wireless IP network, and the information exchanged is the user plane information for the wireless IP network, and the wireless IP
  • the network itself does not need to interact, nor does it involve control plane signaling in the communication network; that is, the method of this embodiment only needs to provide a server supporting the method and a terminal supporting the method, and the server and the terminal can pass the present Any wireless IP network can communicate without changing the existing one. Any communication network NE, thereby realizing the PTT communication based on the existing mobile network having a predefined area functions to reduce the implementation cost of a predefined PTT communication area.
  • FIG. 6 is a flowchart of Embodiment 6 of the PTT communication method according to the present invention.
  • the execution body of this embodiment is a server. As shown in FIG. 6, the method in this embodiment may include:
  • Step 601 The server determines to allow PTT communication of the group to be established.
  • Step 602 Send, to the terminal of the group, a paging message of the PTT communication of the group, where the paging message carries a group identifier of the group and predefined area information of the group.
  • Step 603 Receive a paging response message sent by the terminal of the group, where the paging response message carries a group identifier of the group, where the paging response message is that the terminal is according to its current current cell.
  • the cell identifier is sent after being judged to be currently within the predefined area.
  • the terminal receiving the paging message determines that it is currently in a predefined area of the group
  • the paging response message is not sent to the server; when the terminal moves into the predefined area of the group, the server will send a message to the predefined area, which does not need to be Send a page response message.
  • Step 604 Receive a message that is sent by the terminal of the group to leave a predefined area, where the message leaving the predefined area carries the terminal identifier of the terminal and the group identifier of the group.
  • Step 605 Move the terminal out of the PTT communication of the group.
  • Steps 604 and 605 are a set of optional steps.
  • the specific scenario is: the current cell of the terminal in the group that is undergoing PTT communication changes, when the terminal determines that the current location is outside the predefined area of the group. The message leaving the predefined area will be sent to the server, at which point the server performs steps 604, 605.
  • the server further determines whether the terminal is the main terminal: if the terminal is a non-talking terminal, stopping sending the media stream of the calling terminal to the terminal; if the terminal is the main terminal, translating the right to speak, and The status of "whether or not there is a speaker" of the group is updated to "No", so that other terminals in the group that are performing PTT communication can apply for the right to speak.
  • Step 606 Receive a message that is sent by the terminal of the group to enter a predefined area, where the message that enters the predefined area carries the terminal identifier of the terminal and the group identifier of the group.
  • Step 607 Add the terminal to the PTT communication of the group.
  • Steps 606 and 607 are a set of optional steps, where the specific scenario is: the current cell of a certain terminal of the group changes, for example, the terminal moves to a predefined area of the group, and the server performs steps 604 and 605. After the terminal continues to move and moves back to the predefined area of the group, a message to enter the predefined area will be sent to the server. At this time, the server performs steps 606, 607; or, the server performs step 603. When a terminal in the group is outside the predefined area of the group, and the terminal moves to a predefined area of the group at the current moment, the terminal sends a message to the server to enter the predefined area, which The server then performs steps 606, 607.
  • step 607 specifically, the server sends the media stream of the host terminal to the terminal.
  • Step 608 Receive a call end request sent by the terminal of the group.
  • Step 609 Send a call end message to all terminals of the group, so that all terminals of the group delete the predefined area information of the group.
  • any terminal that is performing PTT communication may send a call end request to the server, and the server sends a call to all registered terminals of the group after receiving the call end request. Ending the message, so that the terminal deletes the predefined area information of the group.
  • the pre-defined area information of the group is sent to the terminal of the group by the server, so that after the terminal receives the paging message and the current cell of the terminal changes, it can determine whether it is located in the predefined area of the group. And performing different operations according to the determined situation, such as sending a paging response to the server or not sending a paging response, sending a message to the server to enter a predefined area or leaving the predefined area, thereby implementing a predefined area of PTT communication.
  • the above-mentioned interaction between the server and the terminal is performed through the existing wireless IP network, and all the interaction information is user plane information for the communication network, and does not involve communication network control plane signaling. Therefore, this embodiment The method can realize the predefined area function of PTT communication without changing the existing wireless IP network, and the implementation cost is reduced.
  • FIG. 7 is a flowchart of Embodiment 7 of a PTT communication method according to the present invention.
  • the execution subject of this embodiment is a terminal that receives a paging message.
  • the method in this embodiment may include:
  • Step 701 The terminal receives a paging message of the PTT communication of the group sent by the server, where the paging message carries the group identifier of the group and the predefined area information of the group.
  • a terminal in the group sends a PTT communication establishment request to the server, and the server sends a PTT communication permission establishment message to the terminal that sends the request, at this time, all the registered other terminals of the group will Receiving a paging message of the group PTT communication sent by the server.
  • the server cannot communicate with it over the wireless IP network, so the server does not send a paging message to the unregistered terminal. And if the terminal is registered after the group's PTT communication is established, the server will resend the paging message to it.
  • Step 702 Save the predefined area information of the group corresponding to the group identifier.
  • the terminal After receiving the paging message of the PTT communication, the terminal saves the group identifier carried in the paging message and the predefined area information of the group locally, so that the terminal can be based on the group during the PTT communication process.
  • the predefined area information of the group performs different operations, such as returning or not returning a page response message to the server, sending a message leaving the predefined area to the server, or entering a message of a predefined area.
  • the PTT communication paging message of the group sent by the terminal receiving server carries the group identifier and the predefined area information, so that the terminal can determine whether it is currently located in the predefined area of the group, according to the judgment.
  • the result determines whether to send a paging response message to the server, thereby implementing a predefined area function of the PTT communication; all interactions between the server and the terminal are through existing
  • the wireless IP network performs all the information about the user plane for the communication network, and does not involve the communication network control plane signaling. Therefore, the method of this embodiment does not change the existing wireless.
  • the IP network realizes the predefined area function of PTT communication, which reduces the implementation cost.
  • FIG. 8 is a flowchart of Embodiment 8 of the PTT communication method according to the present invention.
  • the executor of this embodiment is a terminal that receives a paging message. As shown in FIG. 8, the method in this embodiment may include:
  • Step 801 The terminal receives a paging message of the PTT communication of the group sent by the server, where the paging message carries the group identifier of the group and the predefined area information of the group.
  • Step 802 Correspond to the group identifier, and save predefined area information of the group.
  • Step 803 Determine, according to the cell identifier of the cell in which the current cell is located, and the predefined area information, whether the current location is within the predefined area of the group.
  • the terminal compares the cell identifier of the current cell with the cell identifier of the predefined area belonging to the group to determine whether it is currently located in a predefined area of the group.
  • Step 804 If the terminal is currently located in a predefined area of the group, send a paging response message to the server, where the paging response message carries the group identifier of the group.
  • the PTT communication of the group can be successfully established.
  • a terminal in the group applies for the right to become the terminal, other terminals can receive.
  • Step 805 If the terminal is currently located outside the predefined area of the group, and after the terminal moves, determine whether the terminal enters according to the saved predefined area information and the cell identity of the terminal moving to the cell. A predefined area of the group.
  • Step 806 When the terminal enters a predefined area of the group, send a message to the server to enter a predefined area, where the message entering the predefined area carries the terminal identifier and the location of the terminal
  • the group identity of the group is such that the server joins the terminal to the PTT communication of the group.
  • Step 807 When the terminal moves, determining, according to the saved predefined area information and the cell identifier of the terminal moving to the cell, whether the terminal leaves a predefined area of the group.
  • Step 808 When the terminal leaves the predefined area of the group, send a message to the server to leave the predefined area, where the message leaving the predefined area carries the terminal identifier of the terminal and the group A group identity of the group such that the server moves the terminal out of the PTT communication of the group.
  • the specific scenarios of the steps 807 and 808 are as follows: The terminal moves to the outside of the predefined area of the group during the PTT communication of the group. At this time, the terminal sends a message to the server to leave the predefined area.
  • Step 809 Receive a call end message sent by the server, where the call end message carries a group identifier of the group.
  • the call end message is sent by the server after receiving a call end request sent by any terminal of the group that is performing PTT communication.
  • Step 810 Delete pre-defined area information of the group that is saved locally.
  • step 810 is to stop the terminal from entering the predefined area or leaving the predefined area when the terminal enters or leaves the predefined area of the group after the PTT communication of the group ends.
  • the terminal receives the predefined area information of the group carried in the group PTT communication paging message sent by the server, and can determine whether the current cell is located in the predefined area when the current cell changes during the PTT communication process. Therefore, different operations can be performed according to the determined situation. Specifically, the terminal can use the predefined area information to determine whether it is currently located in a predefined area of the group when it moves, thereby sending a message to the server according to the determined situation.
  • FIG. 9 is a signaling flowchart of a ninth embodiment of a PTT communication method according to the present invention.
  • the embodiment of the present invention names a terminal that sends a PTT establishment request as an initiating terminal, and names another terminal that receives the paging message as a paging terminal. .
  • the number of the paging terminals may be multiple.
  • the embodiment of the present invention is described by taking one example as an example. As shown in FIG. 9, the method in this embodiment may include:
  • Step 901 The initiating terminal sends a PTT communication establishment request to the server, where the PTT communication establishment request carries the group identifier and the cell identifier of the cell where the terminal is currently located.
  • Step 902 The server queries, according to the group identifier, predefined area information of the group corresponding to the group identifier.
  • Step 903 The server determines whether the initiating terminal is located in a predefined area of the group. Inside.
  • Step 904 If the originating terminal is located outside a predefined area of the group, the server sends a PTT communication setup response including a PTT communication setup failure message to the initiating terminal.
  • Step 905 If the originating terminal is located in a predefined area of the group, the server sends a PTT communication setup response including the PTT communication permission establishment to the initiating terminal, where the PTT communication setup response carries the group Group ID of the group, predefined area information of the group.
  • the server determines that the initiating terminal is located in a predefined area of the group, and when the PPT communication of the group is not established, sends a PTT communication setup response including the PTT communication permission establishment to the initiating terminal.
  • Step 906 The server sends a paging message to the other terminals of the group, where the paging message carries the group identifier of the group and the predefined area information of the group.
  • Step 907 The paging terminal determines, according to the cell identity of the current cell, whether it is currently located in a predefined area of the group.
  • Step 908 If the paging terminal is located in a predefined area of the group, send a paging response message to the server, where the paging response message carries the group identifier of the group.
  • Step 909 If the paging terminal is located outside a predefined area of the group, when the paging terminal moves into a predefined area of the group, send the predefined area to the server.
  • the message that enters the predefined area carries the terminal identifier of the paging terminal and the group identifier of the group.
  • Step 910 The server adds the paging terminal to the PTT communication of the group.
  • Step 911 If the paging terminal moves again, when moving to a predefined area of the group, sending a message leaving the predefined area to the server, where the message leaving the predefined area carries The terminal identifier of the paging terminal and the group identifier of the group.
  • Step 912 The server moves the paging terminal out of the PTT communication of the group.
  • Step 913 If the initiating terminal moves outside the predefined area of the group, send a message to the server to leave the predefined area, where the message leaving the predefined area carries the terminal identifier of the initiating terminal and The group identifier of the group.
  • Step 914 The server moves the initiating terminal out of the PTT communication of the group.
  • Step 915 If the initiating terminal moves again, when moving to a predefined area of the group The message is sent to the server to enter the predefined area, and the message that enters the predefined area carries the terminal identifier of the originating terminal and the group identifier of the group.
  • Step 916 The server joins the initiating terminal to the PTT communication of the group.
  • Step 917 Any terminal that is performing PTT communication sends a call end request to the server.
  • Step 918 Send a call end message to all registered terminals.
  • Step 919 All registered terminals delete the locally reserved predefined area information of the group.
  • the server can send the pre-defined area information of the group to all the registered terminals of the group when the PTT communication is established, so that the terminal can determine whether it is currently located in a predefined area of the group. Therefore, the function of PTT communication can be performed only within a predefined area; all interactions between the server and the terminal are performed through an existing wireless IP network, and all interaction information is user plane information for the communication network. The communication network control plane signaling is not involved. Therefore, the method in this embodiment can implement the predefined area function of the PTT communication without changing the existing wireless IP network, thereby reducing the implementation cost.
  • FIG. 10 is a schematic structural diagram of Embodiment 1 of the server of the present invention.
  • the server 1000 of this embodiment may include: a receiving module 11, a querying module 12, a determining module 13, and a sending module 14.
  • the receiving module 11 is configured to receive a PTT communication setup request sent by the terminal, where the PTT communication setup request carries a group identifier and a cell identifier of a cell where the terminal is currently located, and the query module 12 is configured to use, according to the group And determining, by the determining module, the determining unit 13 , configured to determine, according to the pre-defined area information that is queried and the cell identifier of the cell where the terminal is currently located, whether the terminal is located The pre-defined area of the group; the sending module 14 is configured to send a PTT communication setup response to the terminal according to the determination result.
  • the server of this embodiment may be used to implement the technical solution of the method embodiment shown in FIG. 1 , and has a corresponding function module, and the implementation principle thereof is similar to the embodiment shown in FIG. 1 , and details are not described herein again.
  • the device of the embodiment when the server receives the PTT communication establishment request sent by the terminal, queries and determines whether the terminal is located in a predefined area of the group for which the PTT communication is to be performed, and sends the terminal to the terminal according to different judgment results.
  • Sending different PTT communication setup responses all predetermined interaction information for implementing PTT communication is user plane information for the communication network, and does not involve communication network control. Face signaling, therefore, the method of the embodiment can implement the predefined area function of PTT communication without changing the existing wireless IP network, and the implementation cost is reduced.
  • the sending module 14 is specifically configured to: if the terminal is located in a predefined area of the group, send a PTT communication setup response to the terminal, where the PTT communication setup response is carried. a group identifier of the group, and predefined area information of the group.
  • the PTT communication setup response carries the group identity of the group and the predefined information of the group, so that the terminal of the group can determine for itself whether it is located in a predefined area of the group.
  • the PTT communication setup response includes a PTT communication established message and a PTT communication permission establishment message. Specifically, if the group that the terminal wants to establish the PTT communication is currently performing PTT communication, the server sends a PTT communication established message to the terminal; If the PTT communication of the group that the terminal wants to establish PTT communication is not established, the server sends a PTT communication permission establishment message to the terminal.
  • the sending module 14 is specifically configured to: the PTT communication setup response sent to the terminal includes a message that the PTT communication establishment fails.
  • the sending module 14 is further configured to: if the PTT communication of the group corresponding to the group identifier is not established, to other terminals of the group Sending a paging message, where the paging message carries the group identifier of the group and the predefined area information of the group; the receiving module 11 is further configured to: receive the paging sent by other terminals of the group In response to the message, the paging response message carries the group identity of the group, and the paging response message is that the other terminal is determined to be within the predefined area according to the cell identity of the cell in which the current cell is located. Sent.
  • FIG. 11 is a schematic structural diagram of a second embodiment of a server according to the present invention.
  • the server 1100 of the present embodiment is based on the server structure shown in FIG. 10.
  • the receiving module 11 is further configured to receive the group. a message sent by the terminal of the group to leave the predefined area, where the message leaving the predefined area carries the terminal identifier of the terminal and the group identifier of the group; correspondingly, the server in this embodiment further includes: Module 15, a PTT communication for moving the terminal out of the group.
  • the receiving module 11 is further configured to: receive a message that is sent by the terminal of the group to enter a predefined area, where the message that enters the predefined area carries the terminal identifier of the terminal and the group of the group
  • the server in this embodiment further includes: an adding module 16, configured to join the terminal to the PTT communication of the group.
  • the server embodiment shown in FIG. 11 further, in a specific implementation, the receiving module 11 further The terminal that receives the group sends a call end request; the sending module 14 is further configured to send a call end message to all terminals of the group, so that all terminals of the group delete the pre-group Define area information.
  • the server of this embodiment can be used to implement the technical solution of the method embodiment shown in FIG. 2, and has corresponding functional modules.
  • the implementation principle and technical effects are similar to the method embodiment shown in FIG. 2, and details are not described herein again.
  • FIG. 12 is a schematic structural diagram of Embodiment 1 of a terminal according to the present invention.
  • the terminal corresponding to this embodiment is a terminal that sends a PTT communication setup request.
  • the terminal 1200 of this embodiment may include: a sending module 21, a receiving module 22, and a processing module 23, where the sending module 21 is configured to send a PTT communication establishment request to the server, where the PTT communication establishment request is Carrying the group identifier and the cell identifier of the cell where the terminal is currently located; the receiving module 22 is configured to receive a PTT communication setup response sent by the server, where the PTT communication setup response is that the server corresponds to the group identifier Pre-defined area information of the group and the cell identifier of the cell in which the terminal is currently located, determining whether the terminal is located in a predefined area of the group and transmitting according to the determination result; and processing module 23, configured to perform, according to the PPT The communication establishes a response to determine whether to join the PPT communication.
  • the terminal in this embodiment may be used to implement the technical solution of the method embodiment shown in FIG. 3, and has a corresponding function module, and the implementation principle thereof is similar to the embodiment shown in FIG. 3, and details are not described herein again.
  • the PTT communication setup request sent by the terminal to the server carries the group identifier and the current cell identifier of the terminal, so that the server can query the predefined area information of the group according to the group identifier, thereby determining the terminal.
  • the method of this embodiment may not change the existing wireless IP network.
  • the implementation of the predefined area function of PTT communication reduces the implementation cost.
  • the terminal embodiment shown in FIG. 12 in a specific implementation, the PTT communication setup response received by the receiving module 22, when the PTT communication setup response is determined by the server, the terminal is located in a predefined area of the group.
  • the PTT communication setup response includes a message that the PTT communication establishment failed.
  • the terminal embodiment shown in FIG. 12, further, in a specific implementation, is also used when The PTT communication setup response is sent when the server determines that the terminal is located within a predefined area of the group, and the UI communication setup response received by the receiving module 22 includes: a communication established message and a communication permission Establishing a message, and the ⁇ communication establishment response carries a group identifier of the group, and predefined area information of the group.
  • FIG. 13 is a schematic structural diagram of Embodiment 2 of a terminal according to the present invention.
  • the terminal corresponding to this embodiment is sent.
  • the terminal 1300 of this embodiment may further include: a storage module 24, configured to save predefined area information of the group, and a regional monitoring module 25, When the terminal moves, determining whether the terminal leaves a predefined area of the group according to the saved predefined area information and a cell identifier of the terminal moving to the cell, and for, when the terminal moves again And determining, according to the saved predefined area information and the cell identifier of the terminal moving to the cell, whether the terminal enters a predefined area of the group; correspondingly, the sending module 21 is further configured to: if the area monitoring module 25 Determining that the terminal leaves the predefined area of the group, and sending a message to the server to leave the predefined area, where the message leaving the predefined area carries the terminal identifier of the terminal and the group a group identity, such that the server moves the terminal out of the group of communication; and if the area monitoring module 25 determines The terminal enters a predefined area of the group, and
  • the receiving module 22 is further configured to: receive a call end message sent by the server, where the call end message carries the group identifier of the group; the terminal in this embodiment further includes deleting The module 26 is configured to delete the predefined area information of the group that is saved locally.
  • the terminal in this embodiment may be used to implement the technical solution of the method embodiment shown in FIG. 4, and has a corresponding function module.
  • the implementation principle and technical effects are similar to the method embodiment shown in FIG. 4, and details are not described herein again.
  • FIG. 14 is a schematic structural diagram of Embodiment 3 of a server according to the present invention.
  • the device corresponding to this embodiment is a server device that sends a paging message to a paging terminal.
  • the server 1400 of this embodiment may include: a processing module 31 and a sending module 32, where the processing module 31 is configured to determine a UI communication that allows a group to be established; and a sending module 32 is configured to send the group
  • the terminal of the group sends a paging message of the communication of the group, where the paging message carries the group identifier of the group and the group Predefined area information.
  • the device of this embodiment may be used to implement the technical solution of the method embodiment shown in FIG. 5, and has a corresponding function module, and the implementation principle thereof is similar to the method embodiment shown in FIG. 5, and details are not described herein again.
  • the server of the embodiment carries the group identifier and the predefined area information of the group in the paging message sent by the server, so that the terminal can determine whether it is located in the predefined area, so that the terminal can enable the terminal to Performing different operations according to the determined situation, such as returning a page response or not returning a page response, and transmitting a message entering or leaving a predefined area of the group in a subsequent PTT communication process, thereby implementing a pre-PTT communication Defining the regional function; Because the above implementation of the predefined regional function, the information interaction between the server and the terminal can be implemented through the existing wireless IP network, and the information exchanged is the user's information for the wireless IP network, and The wireless IP network itself does not need to interact, nor does it involve control plane signaling in the
  • PTT communication has the function of a predefined area, which reduces the implementation cost of PTT communication in a predefined area.
  • FIG. 15 is a schematic structural diagram of Embodiment 4 of a server according to the present invention.
  • the device corresponding to this embodiment is a server device that sends a paging message to a paging terminal.
  • the server 1500 of the embodiment further includes: a receiving module 33, configured to receive a paging response message sent by the terminal of the group, where the paging is performed.
  • the response message carries the group identifier of the group, and the paging response message is sent by the terminal after determining that the terminal is currently within the predefined area according to the cell identity of the current cell.
  • the receiving module 33 is further configured to, after the paging response message sent by the terminal that receives the group, receive a message that is sent by the terminal of the group to leave a predefined area, where the leaving the predefined area
  • the message carries the terminal identifier and the group identifier of the group; correspondingly, the message may further include: a removal module 34, configured to move the terminal out of the PTT communication of the group.
  • the receiving module 33 is further configured to: after sending the paging message of the PTT communication of the group to the terminal of the group, or leaving the predefined area sent by the terminal receiving the group After receiving the message, the terminal that receives the predefined area is sent by the terminal of the group, and the message that enters the predefined area carries the terminal identifier and the group identifier.
  • the method further includes: adding module 35, The terminal joins the PTT communication of the group.
  • the receiving module 33 is further configured to: send the paging sent by the terminal that receives the group After the response message, the call end request sent by the terminal of the group is received; the sending module 32 is further configured to send a call end message to all terminals of the group, so that all terminals of the group delete the group Predefined area information for the group.
  • the server of this embodiment may be used to implement the technical solution of the method embodiment shown in FIG. 6, and has corresponding functional modules.
  • the implementation principle and technical effects are similar to the method embodiment shown in FIG. 6, and details are not described herein again.
  • FIG. 16 is a schematic structural diagram of Embodiment 3 of a terminal according to the present invention.
  • the terminal corresponding to this embodiment is a terminal that receives a paging message.
  • the terminal 1600 of this embodiment may include: a receiving module 41 and a storage module 42, where the receiving module 41 is configured to receive a paging message of a PTT communication of a group sent by a server, where the paging message is And carrying the group identifier of the group and the predefined area information of the group; the storage module 42 is configured to save the predefined area information of the group corresponding to the group identifier.
  • the terminal of the embodiment may be used to implement the technical solution of the method embodiment shown in FIG. 7 , and has a corresponding function module, and the implementation principle thereof is similar to the embodiment shown in FIG. 7 , and details are not described herein again.
  • the terminal in this embodiment carries the group identifier and the predefined area information in the PTT communication paging message of the group sent by the receiving server, so that the terminal can determine whether it is currently located in the predefined area of the group, according to The judgment result determines whether to send a paging response message to the server, thereby implementing a predefined area function of the PTT communication; all the interaction between the server and the terminal is performed through the existing wireless IP network, and all the interaction information is for the communication network.
  • the user plane information is not related to the communication network control plane signaling. Therefore, the method in this embodiment can implement the predefined area function of the PTT communication without changing the existing wireless IP network, thereby reducing the implementation cost.
  • FIG. 17 is a schematic structural diagram of Embodiment 4 of a terminal according to the present invention.
  • the terminal corresponding to this embodiment is a terminal that receives a paging message.
  • the terminal 1700 of the present embodiment may further include: an area monitoring module 43 and a sending module 44, and an area monitoring module 43 for using the current cell of the terminal, based on the terminal structure shown in FIG.
  • the cell identifier and the predefined area information determine whether the terminal is currently located in a predefined area of the group; the sending module 44 is configured to: if the terminal is currently located in a predefined area of the group And sending a paging response message to the server, where the paging response message carries the group identifier of the group.
  • the area monitoring module 43 is further configured to: if the terminal is currently located outside the predefined area of the group, and after the terminal moves, according to the saved predefined area information and the The cell identifier of the terminal moving to the cell determines whether the terminal enters a predefined area of the group; correspondingly, the sending module 44 is further configured to: when the area monitoring module 43 determines that the terminal enters a predefined area of the group Sending a message to the server to enter a predefined area, where the message entering the predefined area carries the terminal identifier of the terminal and the group identifier of the group, so that the server joins the terminal PTT communication of the group.
  • the area monitoring module 43 is further configured to: after the sending module 44 sends a message to the server to enter a predefined area, or after sending the paging response message to the server, when the terminal moves, according to saving The pre-defined area information and the cell identity of the terminal moving to the cell determine whether the terminal leaves a predefined area of the group; the sending module 44 is further configured to: when the area monitoring module 43 determines that the terminal leaves the group And sending, by the server, a message that leaves the predefined area, where the message leaving the predefined area carries the terminal identifier of the terminal and the group identifier of the group, so that the server The terminal is moved out of the PTT communication of the group.
  • the receiving module 41 is further configured to: receive a call end message sent by the server, where the call end message carries a group identifier of the group; the terminal in this embodiment further includes: a deleting module 45, configured to: Delete the predefined area information of the group saved locally.
  • the terminal of the embodiment may be used to implement the technical solution of the method embodiment shown in FIG. 8, and the corresponding functional module is provided.
  • the implementation principle and the technical effect are similar to the method embodiment shown in FIG. 8, and details are not described herein again.
  • FIG. 18 is a schematic structural diagram of Embodiment 1 of a communication system according to the present invention.
  • the system 1800 of this embodiment may include: a server, an originating terminal, and at least one paging terminal, where the initiating terminal establishes a PTT communication for sending.
  • the requested terminal, the paging terminal is a terminal that receives the paging message.
  • the server may use the structure of the server embodiment shown in FIG. 10 or FIG. 11 , and correspondingly, the technical solution of the method embodiment shown in FIG. 1 or FIG. 2 may be performed, and the implementation principle and the technical effect are similar.
  • the initiating terminal can use the structure of the terminal embodiment shown in FIG. 12 or FIG.
  • the technical solution of the method embodiment shown in FIG. 3 or FIG. 4 can be executed, and the implementation principle and technology thereof are implemented.
  • the effect is similar, and is not described here again; at least one paging terminal may use the structure of the terminal embodiment shown in FIG. 16 or FIG. 17, and correspondingly, the technology of the method embodiment shown in FIG. 7 or FIG. 8 may be executed.
  • the implementation principle and technical effects of the solution are similar, and will not be described here.
  • FIG. 19 is a schematic structural diagram of Embodiment 2 of a communication system according to the present invention. As shown in FIG. 19, this embodiment is shown in FIG.
  • the system 1900 can include: a server and at least one paging terminal, wherein the paging terminal is a terminal that receives the paging message.
  • the server may use the structure of the server embodiment shown in FIG. 14 or FIG. 15 , and correspondingly, the technical solution of the method embodiment shown in FIG. 5 or FIG. 6 may be performed, and the implementation principle and the technical effect are similar.
  • the structure of the terminal embodiment shown in FIG. 16 or FIG. 17 can be used, and correspondingly, the technical solution of the method embodiment shown in FIG. 7 or FIG. 8 can be implemented. The principle and technical effects are similar and will not be described here.
  • FIG. 20 is a schematic structural diagram of Embodiment 5 of the server according to the present invention.
  • the server corresponding to this embodiment is a server that interacts with the originating terminal.
  • the server 2000 of this embodiment may include: a receiving circuit 2001, a transmitting circuit 2002, a memory 2003, and a processor 2004.
  • the memory 2003 stores the group identifier and the predefined area information of the at least one group.
  • the receiving circuit 2001 is configured to receive the PTT communication setup request sent by the terminal, where the PTT communication setup request carries the group identifier and the current location of the terminal.
  • the cell identifier of the cell is connected to the receiving circuit 2001, the transmitting circuit 2002, and the memory 2003, respectively, for performing the following operations: querying, according to the group identifier received by the receiving circuit 2001, the corresponding identifier of the group identifier from the memory 2003.
  • Pre-defined area information of the group determining, according to the queried predefined area information and the cell identifier received by the receiving circuit, whether the terminal is located in a predefined area of the group; 2002 sends a PPT communication setup response to the terminal.
  • the receiving circuit 2001 and the transmitting circuit 2002 may be two independent circuits, or may be integrated into a transmitting and receiving circuit.
  • the processor 2004 sends a PTT communication setup response to the terminal by using the sending circuit 2002 according to the determination result, which may include: if the terminal is located in a predefined area of the group, sending a PTT communication to the terminal. Establishing a response, the PTT communication setup response carrying the group identifier of the group, the predefined area information of the group, where the PTT communication establishment response includes a PTT communication established message or a PTT communication permission establishment message And if the terminal is located outside the predefined area of the group, sending a PTT communication setup response to the terminal, where the PTT communication establishment response includes a message that the PTT communication establishment fails.
  • sending a PTT communication setup response to the terminal specifically includes: if the PTT communication of the group corresponding to the group identifier is established, The terminal sends a PTT communication established message; if the PTT communication of the group corresponding to the group identifier is not established, sending a PTT communication permission establishment message to the terminal. Further, if the PTT communication of the group corresponding to the group identifier is not established, the processor
  • the operation performed in 2004 further includes: sending an instruction to the sending circuit 2002, and sending, by the sending circuit 2002, a paging message to the other terminals of the group, where the paging message carries the group identifier of the group and the group
  • the pre-defined area information of the group correspondingly, the receiving circuit 2001 is specifically configured to: receive a paging response message sent by another terminal of the group, where the paging response message carries the group identifier of the group, where The paging response message is sent by the other terminal after determining that it is currently within the predefined area according to the cell identity of the cell in which it is currently located.
  • the receiving circuit 2001 may be further configured to receive a message that is sent by the terminal of the group to leave a predefined area, where the message leaving the predefined area carries the terminal identifier of the terminal and the group of the group.
  • the processor 2004 is further configured to: move the terminal out of the group of communication.
  • the receiving circuit 2001 may be further configured to: receive a message that is sent by the terminal of the group and enter a predefined area, where the message that enters the predefined area carries the terminal identifier of the terminal and the group of the group The group identifier is correspondingly used by the processor 2004 to join the terminal to the group communication.
  • the receiving circuit 2001 may be further configured to: receive, by the terminal, the terminal to send a call end request; accordingly, the processor 2004 is further configured to send an instruction to the sending circuit 2002, to all the groups by using the sending circuit 2002.
  • the terminal sends a call end message to cause all terminals of the group to delete the predefined area information of the group.
  • the server provided in this embodiment may be used to perform the technical solution implemented by the method shown in FIG. 1 or FIG. 2 and the part of the technical solution of the method embodiment shown in FIG. 9 that is executed by the server and interacts with the initiating terminal, and the implementation principle thereof is The technical effects are similar and will not be described here.
  • Figure 20 is only a schematic diagram of the structure of a communication device provided by the present invention, and the specific structure can be adjusted according to actual conditions.
  • FIG. 21 is a schematic structural diagram of Embodiment 5 of a terminal according to the present invention.
  • the terminal corresponding to this embodiment is an originating terminal.
  • the terminal 2100 of this embodiment may include: a receiver 2101, a transmitter 2102, a memory 2103, and a processor 2104.
  • the transmitter 2102 is configured to: send a ⁇ communication establishment request to the server, where the ⁇ communication establishment request carries a group identifier and a cell identifier of a cell where the terminal is currently located; and the receiver 2101 is configured to receive, by the server, ⁇ Communication establishment response, the ⁇ communication establishment response carrying the group identifier and the predefined area information of the group corresponding to the group identifier,
  • the PTT communication establishment response is that the server determines, according to the predefined area information of the group corresponding to the group identifier, and the cell identifier of the cell where the terminal is currently located, whether the terminal is located in a predefined area of the group.
  • the processor 2104 configured to determine, according to the ⁇ communication establishment response, whether to join the ⁇ communication of the group, for example, by prompting the user, in combination with the instruction information input by the user, determining whether to join the Group communication.
  • the receiver 2101 and the transmitter 2102 may be two independent functional modules, or may be integrated into a transceiver.
  • the ⁇ communication establishment response received by the receiver 2101 includes ⁇ communication establishment The message of failure.
  • the ⁇ communication establishment response received by the receiver 2101 includes Establishing a message or communication allows the message to be established, and the ⁇ communication setup response carries the group identity of the group, the predefined area information of the group.
  • the memory 2103 is specifically configured to save the predefined area information of the group after receiving the ⁇ communication establishment response sent by the server.
  • the processor 2104 is further configured to: when the terminal moves, determine, according to the saved predefined area information and the cell identifier that the terminal moves to the cell, whether the terminal leaves a predefined area of the group; When the result of the determination is yes, the instructing the sender 2102 sends a message to the server to leave the predefined area, where the message leaving the predefined area carries the terminal identifier and the group identifier of the terminal, so that the server will The terminal moves out of the group's communication.
  • the processor 2104 is further configured to: when the terminal moves again, determine, according to the saved predefined area information, and the cell identifier that the terminal moves to the cell, whether the terminal enters a predefined area of the group. When the result of the determination is yes, the instructing the sender 2102 sends a message to the server to enter the predefined area, where the message entering the predefined area carries the terminal identifier and the group identifier, so that the server will use the terminal Join the group's communication.
  • the receiver 2101 is further configured to: receive a call end message sent by the server, where the call end message carries a group identifier of the group; and the processor 2104 is further configured to: delete the locally saved group Group of predefined area letters, 3 ⁇ 4.
  • FIG. 21 is only a schematic diagram of the structure of the communication device provided by the present invention, and the specific structure may be adjusted according to actual conditions.
  • FIG. 22 is a schematic structural diagram of Embodiment 6 of the server according to the present invention.
  • the server corresponding to this embodiment is a server that interacts with the paging terminal.
  • the server 2200 of this embodiment may include: a receiving circuit 2201, a transmitting circuit 2202, a memory 2203, and a processor 2204.
  • the memory 2203 stores the group identifier and the predefined area information of the at least one group; the processor 2204 is configured to determine the PTT communication that allows the group to be established, and instruct the sending circuit 2202 to send the group to the terminal of the group.
  • the paging message of the PTT communication where the paging message carries the group identifier of the group and the predefined area information of the group.
  • the receiving circuit 2201 and the transmitting circuit 2202 may be two independent circuits, or may be integrated into a transmitting and receiving circuit.
  • the receiving circuit 2201 is configured to receive a paging response message sent by the terminal of the group, where the paging response message carries a group identifier of the group, and the paging response message is that the terminal is in the terminal It is determined to be sent after being within the predefined area according to the cell identity of the current cell of the current cell.
  • the receiving circuit 2201 is further configured to: receive a message that is sent by the terminal of the group and leave a predefined area, where the message leaves the predefined area.
  • the terminal identifier of the terminal and the group identifier of the group are carried in; correspondingly, the processor 2204 is further configured to: remove the terminal from the PTT communication of the group.
  • the receiving circuit 2201 further uses And receiving a message that is sent by the terminal of the group to enter a predefined area, where the message that enters the predefined area carries the terminal identifier of the terminal and the group identifier of the group; correspondingly, the processor 2204 Also used to join the terminal to the PTT communication of the group.
  • the receiving circuit 2201 is further configured to receive a call end request sent by the terminal of the group.
  • the processor 2204 is further configured to instruct the transmitter 2202 to send a call end message to all terminals of the group, to All terminals of the group are deleted from the predefined area information of the group.
  • the server provided in this embodiment may be used to implement the technology implemented by the method shown in FIG. 5 or FIG.
  • the scheme and the part of the technical solution of the method embodiment shown in FIG. 9 that is performed by the server and interact with the paging terminal are similar in implementation principle and technical effects, and are not described herein again.
  • FIG. 22 is only a schematic diagram of the structure of the communication device provided by the present invention, and the specific structure may be adjusted according to actual conditions.
  • FIG. 23 is a schematic structural diagram of Embodiment 6 of a terminal according to the present invention.
  • the terminal corresponding to this embodiment is a paging terminal.
  • the terminal 2300 of this embodiment may include: a receiver 2301, a transmitter 2302, a memory 2303, and a processor 2304.
  • the receiver 2301 is configured to receive a paging message of the PTT communication of the group sent by the server, where the paging message carries the group identifier of the group and the predefined area information of the group; 2304. For corresponding to the group identifier, save the predefined area information of the group on the memory 2303.
  • the receiver 2301 and the transmitter 2302 may be two independent functional modules, or may be integrated into a transceiver.
  • the processor 2304 is configured to determine, according to the cell identifier of the current cell and the predefined area information, whether the current location is within the predefined area of the group; if the terminal is currently located in the group Within the predefined area, the instructing transmitter 2302 sends a paging response message to the server, where the paging response message carries the group identity of the group.
  • the processor 2304 is further configured to: move, according to the saved predefined area information, the cell that the terminal moves to the cell Determining whether the terminal enters a predefined area of the group; when the terminal enters a predefined area of the group, instructing the transmitter 2302 to send a message to the server to enter a predefined area,
  • the message entering the predefined area carries the terminal identifier of the terminal and the group identifier of the group, so that the server joins the terminal to the PTT communication of the group.
  • the processor 2304 is further configured to: according to the saved pre Defining the area information and the cell identity of the terminal moving to the cell to determine whether the terminal leaves a predefined area of the group; when the terminal leaves the predefined area of the group, instructing the transmitter 2302 to The server sends a message leaving the predefined area, where the message leaving the predefined area carries the terminal identifier of the terminal and the group identifier of the group, so that the server moves the terminal out of the group. PTT communication.
  • the receiver 2301 is further configured to receive a call end message sent by the server, where the call end message carries the group
  • the processor 2304 is further configured to delete the predefined area information of the group saved on the memory 2303.
  • the terminal provided in this embodiment may be used to perform the technical solution implemented by the method shown in FIG. 7 or FIG. 8 and the corresponding part of the paging terminal in the technical solution of the method embodiment shown in FIG. 9, and the implementation principle and technical effect are similar. , will not repeat them here.
  • Figure 23 is only a schematic diagram of the structure of the communication device provided by the present invention, and the specific structure can be adjusted according to the actual situation.
  • the invention further provides a computer program product embodiment 1 comprising a computer readable medium, the computer readable medium comprising a set of program code for performing the method as described in the method embodiment shown in Fig. 1 or Fig. 2.
  • the invention further provides a computer program product embodiment 2, comprising a computer readable medium, the computer readable medium comprising a set of program code for performing the method as described in the method embodiment shown in FIG. 3 or FIG.
  • the invention further provides a computer program product embodiment 3, comprising a computer readable medium, the computer readable medium comprising a set of program code for performing the method as described in the method embodiment shown in FIG. 5 or FIG.
  • the invention further provides a fourth embodiment of a computer program product, comprising a computer readable medium comprising a set of program code for performing the method as described in the method embodiment shown in Fig. 7 or Fig. 8.
  • the aforementioned program can be stored in a computer readable storage medium.
  • the program when executed, performs the steps including the foregoing method embodiments; and the foregoing storage medium includes: a medium that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.

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Abstract

La présente invention, selon un mode de réalisation, concerne un procédé, un serveur, un terminal et un système de communication PTT. Selon l'invention, le procédé fait appel : à la réception, par un serveur, d'une requête d'établissement de communication PTT émise par un terminal, la requête d'établissement de communication PTT véhiculant un identifiant de groupe et l'identifiant de cellule d'une cellule dans laquelle le terminal se trouve à ce moment; à la demande, conformément à l'identifiant de groupe, des informations de zone prédéfinie d'un groupe correspondant à l'identifiant de groupe; à la détermination du fait que le terminal se trouve dans la zone prédéfinie du groupe conformément aux informations de zone prédéfinie demandées et à l'identifiant de cellule de la cellule dans laquelle le terminal se trouve à ce moment; et, conformément au résultat de la détermination, à la transmission d'une réponse d'établissement de communication PTT au terminal. Le procédé, le serveur, le terminal et le système de communication PTT selon le mode de réalisation de la présente invention réduisent le coût de mise en œuvre de la communication PTT dans une zone prédéfinie.
PCT/CN2012/087555 2012-12-26 2012-12-26 Procédé, serveur, terminal et système de communication ptt WO2014101008A1 (fr)

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