WO2018000312A1 - Procédé, dispositif et système de communication de groupe - Google Patents

Procédé, dispositif et système de communication de groupe Download PDF

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Publication number
WO2018000312A1
WO2018000312A1 PCT/CN2016/087868 CN2016087868W WO2018000312A1 WO 2018000312 A1 WO2018000312 A1 WO 2018000312A1 CN 2016087868 W CN2016087868 W CN 2016087868W WO 2018000312 A1 WO2018000312 A1 WO 2018000312A1
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WO
WIPO (PCT)
Prior art keywords
group
mobile device
message
application
identifier
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PCT/CN2016/087868
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English (en)
Chinese (zh)
Inventor
窦凤辉
金辉
何岳
欧阳国威
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.)
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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 CN201680081375.2A priority Critical patent/CN108605232B/zh
Priority to PCT/CN2016/087868 priority patent/WO2018000312A1/fr
Publication of WO2018000312A1 publication Critical patent/WO2018000312A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/18—Network planning tools
    • H04W16/20—Network planning tools for indoor coverage or short range network deployment

Definitions

  • the present invention relates to the field of vehicle networking technologies, and in particular, to a method, device and system for group communication.
  • any car can be used as a source of information to perform data interaction with surrounding vehicles or base stations, roadside units, etc. in a broadcast or unicast manner.
  • the V2V information is a kind of periodic broadcast information, including the vehicle identification (English name: Identification, English abbreviation: ID), location information, speed, acceleration, or driving route status information.
  • the V2X communication system is similar to the existing device and device (English name: Device to Device, English abbreviation: D2D) communication system
  • the group is set in advance, and the discovery group ID is also pre-configured in each Among the members, when the discovery group ID carried in the periodic signal of a member close to the group member and listening to the group member broadcast is the same as the discovery group ID configured by itself, it indicates that the UE belongs to the same group as the member of the transmission periodic signal.
  • the cooperative adaptive cruise control (English full name: Corporate Adaptive Cruise Control, English abbreviation: CACC) group is temporarily established, the members of the group use the layer two group address (English full name: Vehicle to X Layer-2Group Identify, English abbreviation: V2X Layer-2 Group ID) and multicast address (English name: Vehicle to X Group Internet Protocol multicast address, English abbreviation: V2X Group IP multicast address) periodically broadcast V2X messages in the group, V2X messages
  • the included application layer information includes information about the vehicle itself and group related information.
  • the car that is to be added to the CACC group does not have the discovery group ID of the CACC group. Therefore, the CACC group cannot be found according to the discovery group ID and the CACC group is requested to be added. In addition, there is no layer 2 group address and multicast address, so the CACC group is added. It is also impossible to send messages to the CACC group before.
  • the present invention provides a method, device and system for group communication, which can solve the problem that the vehicle in the prior art cannot acquire the group address for sending a message to the group before temporarily joining the group.
  • the first aspect provides a method of group communication, the method comprising:
  • the control entity receives a second message that is sent by the first mobile device and carries the second group of identifiers, where the second The group identifies a first message sent by the second mobile device, and the second message is used to request to join the second group identified by the second group of identifiers;
  • the control entity sends a third message to the first mobile device, the third message carries the group address corresponding to the second group, and the group address corresponding to the second group may be the layer corresponding to the second group.
  • the second group identifier or the corresponding multicast address of the second group;
  • the second group corresponding group address is used by the first mobile device to send a group message in the second group after joining the second group.
  • control entity may also authenticate the first mobile device by using the home subscriber server HSS.
  • the second message is that the first mobile device determines that the first mobile device meets the condition of joining the second group according to the first message (for example, group indication information carried in the first message).
  • the sent message satisfies the condition that the joining may be that the group requirement of the first mobile device matches the second group, for example, the first mobile device wants to perform a certain service, and if the second group just provides the service, or the first mobile device The destination you want to arrive is exactly the same as the second group. Then, the first mobile device can request to join the second group.
  • the group indication information can be defined to indicate the second group by using various types of information, mainly in the following cases:
  • the first message or the group indication information includes a second group identifier for identifying the second group to which the second mobile device belongs, and an application group container corresponding to the second group;
  • the second group of corresponding application group containers includes the second group of application layer information.
  • the first message or the group indication information is used to indicate the second group identifier of the second group to which the second mobile device belongs, and the application group container indication information corresponding to the second group;
  • the second group of identifiers is used to identify the second group to which the second mobile device belongs;
  • the application group container indication information is used to indicate a location and a size of an application group container corresponding to the second group.
  • the controlling entity may also create a group for the first mobile device, so that other mobile devices can join the group created for the first mobile device according to the group requirement, and in addition, each mobile device can create at least one group, You can join at least one group.
  • the following process for the control entity to create the first group for the first mobile device is as follows:
  • the control entity receives a sixth message sent by the first mobile device, where the sixth message carries Controlling a cell, the control cell being used to request to create a first group;
  • the controlling entity creates the first group for the first mobile device, and allocates group address information for identifying the first group identifier and the first group of the first group;
  • the control entity sends a seventh message carrying the first group identifier and the group address information of the first group to the first mobile device, where the group address information of the first group is used for the first
  • the mobile device sends a group message within the first group.
  • the group address information of the first group includes at least one of a layer 2 group identifier corresponding to the first group and a multicast address corresponding to the first group;
  • the first group corresponding layer 2 group identifier and the first group corresponding multicast address are used by the first mobile device to send a group message in the first group.
  • a second aspect provides a method of group communication, the method comprising:
  • the first mobile device Receiving, by the first mobile device, the first message sent by the second mobile device, where the first message carries group indication information, where the group indication information is used to indicate information of the second group to which the second mobile device belongs;
  • the first mobile device determines that the first mobile device meets the condition for joining the second group according to the group indication information
  • the first mobile device acquires, according to the group indication information, a second group for identifying the second group. Identifying, and sending a second message carrying the second group of identifiers to the control entity, the second message is used to request to join the second group; and the condition for joining may be, the group of the first mobile device
  • the demand matches the second group, for example, the first mobile device wants to perform a certain service, if the second group just can provide the service, or the first mobile device wants to arrive at the same destination as the second group. Then, the first mobile device can request to join the second group.
  • the first mobile device sends a fourth message to the second mobile device by using the layer two group identifier and the layer three address of the second mobile device, where the fourth message is used to indicate the first
  • the mobile device requests to join the second group;
  • the second message is a message that is sent by the first mobile device when determining, according to the group indication information, that the first mobile device meets the condition of joining the second group.
  • the group indication information can be defined to indicate the second group by using various types of information, mainly in the following cases:
  • the group indication information includes a second group identifier for identifying the second group to which the second mobile device belongs, and an application group container corresponding to the second group;
  • the second group of corresponding application group containers includes the second group of application layer information.
  • the group indication information is used to indicate the second group identifier of the second group to which the second mobile device belongs, and the application group container indication information corresponding to the second group;
  • the second group of identifiers is used to identify the second group to which the second mobile device belongs;
  • the application group container indication information is used to indicate a location and a size of an application group container corresponding to the second group.
  • the first mobile device is provided with the group address information required to send the message in the second group, that is, the layer two group identifier and the multicast address, respectively, by the control entity and the second mobile device.
  • the execution subject is not limited, specifically:
  • the multicast address is provided by the second mobile device, that is, the third message carries the second group corresponding layer 2 group identifier, and the fifth message carries the second group corresponding Multicast address.
  • the layer 2 group identifier is provided by the second mobile device, that is, the third message carries the multicast address corresponding to the second group, and the fifth message carries the second group corresponding Layer two group identification.
  • the first mobile device may also request the control entity to create a group belonging to itself, so that other mobile devices can join the group created for the first mobile device according to the group requirement, and in addition, each mobile device can create at least A group can also join at least one group.
  • the following process for requesting the first mobile device to request creation from the control entity is as follows:
  • a seventh message sent by the control entity where the seventh message carries a first group of identifiers for identifying the first group, and group address information of the first group,
  • the first set of identifiers and the group address information of the first group are created by the control entity for the first mobile device After the first group is allocated;
  • the first mobile device sends a group message within the first group.
  • the group address information of the first group includes a layer 2 group identifier corresponding to the first group corresponding to the first group, and a multicast address corresponding to the first group corresponding to the first group;
  • the first group corresponding layer 2 group identifier and the first group corresponding multicast address are used by the first mobile device to send a group message in the first group.
  • the solution provided by the first aspect and the second aspect described above mainly describes that a group is created by a control entity, and a group communication service is added to the mobile device outside the group.
  • the following third and fourth aspects provide a solution, mainly It is described that a group is created by an application server, and a group communication service is provided by joining the group to a mobile device outside the group.
  • a third aspect provides a method of group communication, the method comprising:
  • the application server receives the second message sent by the first mobile device, where the second message carries the group identification information of the second group and the application layer user identifier of the first mobile device, where the second message is received by the first mobile device And sending, by the second mobile device, the first message carrying the group indication information, according to the group indication information, a message that is sent when the first mobile device meets the condition of joining the second group; the group indication information Used to indicate a second group to which the second mobile device belongs;
  • the application server sends a fourth message to the first mobile device, the fourth message carries the group address information of the second group, and the group address information of the second group is used by the first mobile device After joining the second group, a group message is sent within the second group.
  • the group indication information includes the second group corresponding application group container, and after the application server receives the second message sent by the first mobile device, the application server sends the fourth message to the Before the first mobile device, the method further includes:
  • the application server sends a third message to the second mobile device, where the third message carries an application group container of the first mobile device and an application layer user identifier of the first mobile device, the third The message is used by the second mobile device to determine the right of the first mobile device to join the second group, and to indicate that the first mobile device requests to join the second group.
  • the content of the group indication information received by the first mobile device is also different, so that the information according to the second group is added. It will also be different, mainly in the following cases:
  • the group identifier information of the second group is the application layer group identifier of the second group.
  • the group address information of the second group includes: a layer two group identifier corresponding to the application layer group identifier of the second group, and a multicast address corresponding to the application layer group identifier of the second group.
  • the group indication information includes a second group identifier for identifying the second group, and the group group identifier information of the second group is the second group.
  • the second group of corresponding application group containers includes the second group of application layer information.
  • the group address information of the second group includes a layer two group identifier corresponding to the second group, and a multicast address corresponding to the second group.
  • the group indication information is used to indicate the second group identifier of the second group to which the second mobile device belongs, and the second group of the application group container indication information corresponding to the second group
  • the group identification information is the second group identifier
  • the second group of identifiers is used to identify the second group to which the second mobile device belongs;
  • the second group corresponding application group container indication information is used to indicate the location and size of the application group container corresponding to the second group.
  • the group address information of the second group includes a layer two group identifier corresponding to the second group, and a multicast address corresponding to the second group.
  • the first mobile device may also request the application server to create a group belonging to itself, so that other mobile devices can join the group created for the first mobile device according to the group requirement, and in addition, each mobile device can create at least A group can also join at least one group.
  • the following process for the application server to create the first group for the first mobile device is as follows:
  • the application server creates the first group for the first mobile device, and generates a first group of identifier information for identifying the first group;
  • the fifth message further carries an application layer user identifier of the first mobile device, where the first group of identifier information is an application layer group identifier used to identify the first group;
  • the group address information of the first group includes a layer 2 group identifier corresponding to the first group corresponding to the first group, and a multicast address corresponding to the first group corresponding to the first group;
  • the first group corresponding layer 2 group identifier and the first group corresponding multicast address are used by the first mobile device to send a group message in the first group.
  • the fourth aspect describes a method for group communication from the perspective of the first mobile device, and the method includes:
  • the first mobile device Receiving, by the first mobile device, the first message sent by the second mobile device, where the first message carries group indication information, where the group indication information is used to indicate information of the second group to which the second mobile device belongs;
  • the first mobile device sends a second message to the application server when the first mobile device determines that the first mobile device meets the condition of joining the second group according to the group indication information, and the second message carries the second group.
  • Group identification information and an application layer user identifier of the first mobile device, the second message being used to request to join the second group;
  • the first mobile device joins the second group according to the group identification information of the second group, and sends a group message in the second group by using the group address information of the second group.
  • the group indication information includes the application group container corresponding to the second group, and the fourth message is an application that the application server is to carry the second group corresponding application group container and the first mobile device.
  • the second mobile device determines that the first mobile device has a message sent after joining the rights of the second group;
  • the third message is used to instruct the second mobile device to determine the right of the first mobile device to join the second group, and to instruct the first mobile device to request to join the second group.
  • the content of the group indication information received by the first mobile device is also different, so that the information according to the second group is added. It will also be different, mainly in the following cases:
  • the group identifier information of the second group is the application layer group identifier of the second group.
  • the group address information of the second group includes: a layer two group identifier corresponding to the application layer group identifier of the second group, and a multicast address corresponding to the application layer group identifier of the second group.
  • the group indication information includes a second group identifier for identifying the second group, and the group group identifier information of the second group is the second group.
  • the second group of corresponding application group containers includes the second group of application layer information.
  • the group address information of the second group includes a layer two group identifier corresponding to the second group, and a multicast address corresponding to the second group.
  • the group indication information is used to indicate the second group identifier of the second group, and the group group identifier information of the second group is the second group Group identification
  • the second group of identifiers is used to identify the second group to which the second mobile device belongs;
  • the second group corresponding application group container indication information is used to indicate the location and size of the application group container corresponding to the second group.
  • the group address information of the second group includes a layer two group identifier corresponding to the second group, and a multicast address corresponding to the second group.
  • the first mobile device may also request the application server or the control entity to create a group belonging to itself, so that other mobile devices can join the group created for the first mobile device according to the group requirement, and in addition, each mobile device You can create at least one group or you can join at least one group. The following are explained separately:
  • the first mobile device requests the application server to create the first group.
  • the first mobile device receives a sixth message sent by the application server, where the sixth message carries the group address information of the first group and the first group of identifier information used to identify the first group, where the first The group identification information is generated after the application server creates the first group for the first mobile device;
  • the first mobile device joins the first group according to the first group of identification information, and sends a group message in the first group according to the group address information of the first group.
  • the first group of identifier information is an application layer group identifier used to identify the first group
  • the group address information of the first group includes a layer 2 group identifier corresponding to the first group corresponding to the first group, and a multicast address corresponding to the first group corresponding to the first group;
  • the first group corresponding layer 2 group identifier and the first group corresponding multicast address are used by the first mobile device to send a group message in the first group.
  • the first mobile device requests the control entity to create the first group.
  • the eighth message carries a first group of identifiers for identifying the first group, and group address information of the first group
  • the first group of identifiers are generated by the control entity after authenticating the first mobile device by the home subscriber server HSS, and the first group is created after the first mobile device is created;
  • the first mobile device joins the first group according to the first group identifier, and sends a group message in the first group according to the group address information of the first group.
  • the seventh message further includes an application group container of the first mobile device and an application layer user identifier of the first mobile device, where the application group container of the first mobile device includes an application layer of the first mobile device information;
  • the group address information of the first group includes a layer 2 group identifier corresponding to the first group corresponding to the first group identifier, and a multicast address corresponding to the first group corresponding to the first group identifier;
  • the first group of corresponding layer two group identifiers and the first group corresponding multicast address are used by the first mobile device to send a group message in the first group after joining the second group.
  • a fifth aspect of the present invention provides a control entity having a function of implementing a method corresponding to the group communication provided by the above first aspect.
  • the functions may be implemented by hardware or by corresponding software implemented by hardware.
  • the hardware or software includes one or more modules corresponding to the functions described above, which may be software and/or hardware.
  • control entity includes:
  • a receiving module configured to receive a second message that is sent by the first mobile device and that carries a second group of identifiers, where the second group identifies a first message that is sent by the second mobile device, and the second message is used to request to join the The second group identified by the second group of identifiers;
  • a sending module configured to send a third message to the first mobile device, where the third message carries a group address corresponding to the second group;
  • the second group corresponding group address is used by the first mobile device to send a group message in the second group after joining the second group.
  • control entity includes:
  • At least one processor memory, receiver, and transmitter;
  • the memory is used to store program code
  • the processor is configured to invoke program code in the memory to perform the following operations:
  • the second group corresponding group address is used by the first mobile device to send a group message in the second group after joining the second group.
  • a sixth aspect of the present invention provides a first mobile device having a function of implementing a method corresponding to the group communication provided by the above second aspect.
  • the functions may be implemented by hardware or by corresponding software implemented by hardware.
  • the hardware or software includes one or more modules corresponding to the functions described above, which may be software and/or hardware.
  • the first mobile device includes:
  • a receiving module configured to receive a first message sent by the second mobile device, where the first message carries group indication information, where the group indication information is used to indicate information of the second group to which the second mobile device belongs;
  • a processing module configured to: when determining, according to the group indication information received by the receiving module, that the first mobile device meets a condition for joining the second group, acquiring, according to the group indication information, the identifier The second group of identifiers of the two groups;
  • a sending module configured to send a second message that carries the second group of identifiers acquired by the processing module to the control entity, where the second message is used to request to join the second group;
  • the processing module is further configured to receive, by the receiving module, a third message that is sent by the control entity, where the third message carries a layer two group identifier corresponding to the second group;
  • the broadcast address sends a group message within the second group.
  • the first mobile device includes:
  • At least one processor memory, receiver, and transmitter;
  • the memory is used to store program code
  • the processor is configured to invoke program code in the memory to perform the following operations:
  • a seventh aspect of the present invention provides an application server having a function of realizing a method corresponding to the group communication provided by the above third aspect.
  • the functions may be implemented by hardware or by corresponding software implemented by hardware.
  • the hardware or software includes one or more modules corresponding to the functions described above, which may be software and/or hardware.
  • the application server includes:
  • a receiving module configured to receive a second message sent by the first mobile device, where the second message carries group indication information and an application layer user identifier of the first mobile device, where the second message is received by the first mobile device a first message that is sent by the second mobile device to carry the group indication information, and determines, according to the group indication information, a message that is sent when the first mobile device meets the condition of joining the second group; Instructing the second group to which the second mobile device belongs;
  • a sending module configured to send a fourth message to the first mobile device, where the fourth message carries the group address information of the second group, and the group address information of the second group is used for the first mobile After the device joins the second group, the group message is sent within the second group.
  • the application server includes:
  • At least one processor memory, receiver, and transmitter;
  • the memory is used to store program code
  • the processor is configured to invoke program code in the memory to perform the following operations:
  • the group message is sent within the second group.
  • An eighth aspect of the present invention provides a first mobile device having a function of implementing a method corresponding to the group communication provided by the above fourth aspect.
  • the functions may be implemented by hardware or by corresponding software implemented by hardware.
  • the hardware or software includes one or more modules corresponding to the functions described above, which may be software and/or hardware.
  • the first mobile device includes:
  • a receiving module configured to receive a first message sent by the second mobile device, where the first message carries group indication information, where the group indication information is used to indicate information of the second group to which the second mobile device belongs;
  • a processing module configured to determine, according to the group indication information, whether the first mobile device meets a condition for joining the second group
  • a sending module configured to: when the processing module determines that the first mobile device meets the condition for joining the second group, send a second message to the application server, where the second message carries the group indication information And an application layer user identifier of the first mobile device, where the second message is used to request to join the second group;
  • the processing module is further configured to receive, by the receiving module, a fourth message sent by the application server, where the fourth message includes group address information of the second group;
  • the first mobile device includes:
  • At least one processor memory, receiver, and transmitter;
  • the memory is used to store program code
  • the processor is configured to invoke program code in the memory to perform the following operations:
  • a ninth aspect of the present invention provides a communication system having a function of a method of implementing the above-described group communication.
  • the functions may be implemented by hardware or by corresponding software implemented by hardware.
  • the hardware or software includes one or more modules corresponding to the functions described above, which may be software and/or hardware.
  • the communication system comprises:
  • a first mobile device as in the sixth aspect is a first mobile device as in the sixth aspect.
  • the communication system comprises:
  • a first mobile device as in the eighth aspect is a first mobile device as in the eighth aspect.
  • the first mobile device after receiving the first message carrying the group indication information sent by the second mobile device, the first mobile device sends a second message carrying the group indication information to the application server, The second group corresponding to the request group joining information, after receiving the third message that is sent by the application server and carrying the group address information of the second group, joins the second group according to the group indication information, and uses the group of the second group.
  • the address information sends a group message in the second group, obtains group indication information when temporarily joining the second group, and acquires group address information communicated in the second group.
  • FIG. 1 is a flow chart of a method for group communication in an embodiment of the present invention
  • 1-1 is another flowchart of a method for group communication in an embodiment of the present invention.
  • 1-2 is a flowchart of a first mobile device leaving a second group according to an embodiment of the present invention
  • FIG. 2 is a flowchart of a first mobile device requesting to create a first group according to an embodiment of the present invention
  • FIG. 3 is a schematic structural diagram of a control entity according to an embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram of a first mobile device according to an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of a communication system according to an embodiment of the present invention.
  • FIG. 6 is another flowchart of a method for group communication in an embodiment of the present invention.
  • 6-1 is a flowchart of a method for group communication in an embodiment of the present invention.
  • FIG. 7 is another flowchart of a method for group communication according to an embodiment of the present invention.
  • FIG. 8 is another flowchart of a method for group communication according to an embodiment of the present invention.
  • FIG. 9 is a schematic structural diagram of an application server according to an embodiment of the present invention.
  • FIG. 10 is another schematic structural diagram of a first mobile device according to an embodiment of the present invention.
  • FIG. 11 is another schematic structural diagram of a communication system according to an embodiment of the present invention.
  • FIG. 12 is a schematic structural diagram of a physical device for performing a group communication method according to an embodiment of the present invention.
  • the present application provides a method, device, and system for group communication, which are used in the field of wireless communication technologies, for example, for device-to-device (English name: Device to Device, English abbreviation: D2D) communication or device pair (English full name: Device to X, English abbreviation: D2X) Communication and other proximity services (English full name: Proximity Service, English abbreviation: Prose) scene, where V2V is a D2D Kind of scene.
  • the present application can solve the problem that the prior art vehicle cannot obtain the discovery group identifier of the joining group before joining the group.
  • the terms “comprises” and “comprises” and “the” and “the” are intended to cover a non-exclusive inclusion, for example, a process, method, system, product, or device that comprises a series of steps or modules is not necessarily limited to Those steps or modules, but may include other steps or modules not explicitly listed or inherent to such processes, methods, products or devices, the division of the modules presented herein is merely a logical division. There may be additional divisions in the implementation of the actual application, for example, multiple modules may be combined or integrated into another system, or some features may be ignored, or not executed, and the displayed or discussed mutual coupling.
  • the direct coupling or the communication connection may be through some interfaces, and the indirect coupling or communication connection between the modules may be electrical or the like, which is not limited herein.
  • the modules or sub-modules described as separate components may or may not be physically separated, may not be physical modules, or may be distributed to multiple circuit modules, and some or all of them may be selected according to actual needs.
  • the modules are used to achieve the objectives of the embodiments of the present invention.
  • the mobile device in this paper is a user node in a distributed network, and each mobile device in the distributed network can receive and transmit signals and has the function of automatic routing. It may be a terminal device that performs Prose communication such as D2D communication or D2X communication, such as a car, a drone, or the like.
  • a control entity refers to a functional entity that controls a session of each mobile device in a D2D communication network or a D2X communication network, and can provide a group communication service for a mobile device, and the group communication service includes a group, a disbanding group, a joining group, and an identity of the mobile device. Services such as rights and message routing.
  • the application server (English name: Application Server) is a server that can implement dynamic web page technology, and is a program that provides business logic to mobile devices through various protocols, and can be a mobile device. Provide access to business logic. Specifically, the application server can provide a simple and manageable access mechanism for system resources for the web application residing on the application server, and also provide a server-side program (English full name: Server Applet, English abbreviation: Servlet) Containers, etc.
  • the present application mainly provides the following technical solutions:
  • the control entity provides group communication services for mobile devices that want to join a group:
  • the mobile device A After receiving the group message broadcasted by the mobile device B, the mobile device A sends the group identifier of the group to which the mobile device B belongs in the group message to the control entity to request to join the group.
  • the controlling entity and mobile device B respectively provide mobile device A with a layer two group identity and a multicast address for transmitting messages in the group.
  • the mobile device A joins the group by using the group identifier, and sends a group message in the group by using the layer 2 group identifier and the multicast address.
  • Solution 2 The control entity and the application server jointly provide group communication services for mobile devices that want to join a group:
  • the mobile device A After receiving the group message broadcasted by the mobile device B, the mobile device A sends the group identifier of the group to which the mobile device B belongs in the group message to the control entity to request to join the group, and the group is created by the control entity.
  • the application server provides mobile device A with a layer 2 group identity and a multicast address for sending messages in the group.
  • the mobile device A joins the group by using the group identifier, and sends a group message in the group by using the layer 2 group identifier and the multicast address.
  • Solution 3 The application server provides group communication services for mobile devices that want to join a group separately:
  • the mobile device A After receiving the group message broadcasted by the mobile device B, the mobile device A sends the group identifier of the group to which the mobile device B belongs in the group message to the application server to request to join the group, and the group is created by the application server.
  • the application server provides mobile device A with a layer 2 group identity and a multicast address for sending messages in the group.
  • the mobile device A joins the group by using the group identifier, and sends a group message in the group by using the layer 2 group identifier and the multicast address.
  • the mobile device A can be temporarily added to the mobile device B. How to get the group ID and group address of the group to which mobile device B belongs before.
  • the technical solutions in this application can be used in the D2D, D2X, V2V, and V2X communication scenarios, that is, the control entity in this application is not limited to the D2D control entity or the D2X control entity, the V2X control entity, or the V2X control entity.
  • the group in the application is not limited to the D2D group, the D2X group, the V2X group, or the V2X group.
  • the messages broadcast in the following embodiments are all examples of V2X messages. The types of messages in this document are not limited.
  • FIG. 1 is an embodiment of a method for group communication according to an embodiment of the present invention.
  • This embodiment includes a description of a group communication service provided by a control entity for a first mobile device.
  • This embodiment includes:
  • the first mobile device receives a first message sent by a second mobile device.
  • the first message may be a V2X message, and the V2X message may carry a group indicator and a Layer-3 address of the second mobile device, where the group indication information is used to indicate the
  • the information of the second group to which the second mobile device belongs may be, for example, a group identifier (Group Identity, Group ID) for identifying the second group, and may also be indication information for indicating the group ID ( Indicator).
  • the information of the second group includes the information of the second group, the service of the second group, and the like, and the first mobile device can obtain the service information of the second group according to the group ID.
  • the second mobile device has joined the existing second group or created the second group.
  • the group indication information may be defined by using multiple types of information to indicate the second group, which is mainly divided into the following cases:
  • the group indication information includes a second group identifier (V2X Group ID) for identifying the second group to which the second mobile device belongs, and an application group container corresponding to the second group;
  • V2X Group ID a second group identifier
  • the second group of corresponding application group containers includes the second group of application layer information.
  • the group indication information is used to indicate the second group identifier of the second group to which the second mobile device belongs, and the application group container indication information corresponding to the second group;
  • the second group of identifiers is used to identify the second group to which the second mobile device belongs;
  • the application group container indication information is used to indicate a location and a size of an application group container corresponding to the second group.
  • the application group container includes the application layer information of the second group to which the first mobile device belongs, which may be the size of the second group, and the speed of the group members in the second group. Degree (for example, the driving speed must not be higher than the specified maximum speed), the direction of the second group driving, the destination of the second group, the physical interval between the members of the group in the second group, and the first mobile device in the second group.
  • the location, the second set of application layer information can also provide the service or service identifier.
  • the second mobile device is configured to determine whether the first mobile device can join the second group by referring to the second group of application layer information to which the first mobile device belongs.
  • the first mobile device when determining, according to the group indication information, that the first mobile device meets the condition for joining the second group, acquiring, according to the group indication information, the identifier for identifying the second group. Two sets of logos.
  • the condition for joining the second group may be that the group requirement of the first mobile device matches the second group, and the group requirement refers to the service that the first mobile device currently wants to perform, and may be performed by using the service identifier in the application group container.
  • Matching for example, the first mobile device wants to perform a certain service, if the second group can provide the service just right, or the first mobile device wants to reach a destination that is exactly the same as or similar to the second group, or the first mobile device can accept
  • the specified maximum speed of the second group, the physical interval between the group members of the second group, the number of accommodating members of the second group, etc., or a combination of these conditions indicates the group demand of the first mobile device The second set of matches. Then, the first mobile device can request to join the second group.
  • the process of determining, by the first mobile device, that the first mobile device meets the condition for joining the second group according to the group indication information may be triggered by an application layer, for example, the first mobile device turns on the CACC function, or Establishing contact with the navigation function, once navigated to a destination, the navigation system automatically turns on the CACC and searches for groups that can follow within the effective distance. If the first mobile device has a group requirement, the first mobile device can request to join to satisfy itself.
  • a group of group requirements for example, when the first mobile device is a car, the group that satisfies the group demand of the first mobile device is a fleet.
  • both vehicle A and vehicle B are vehicles in a V2X communication system, and vehicle B is a member of a V2X group, and vehicle B periodically transmits a V2X message in the V2X message.
  • the user ID of the vehicle B, the group identification of the V2X group (V2X Group ID), and the information of the application group container (App Group Container) of the vehicle B are carried.
  • the V2X message carries the user identifier of the vehicle B, group indication information (the group identifier of the V2X group, and the application group container indication).
  • the vehicle A After receiving the V2X message, the vehicle A obtains the V2X Group ID from the V2X message, determines whether the V2X Group ID is within the valid range (for example, within 10-50), and if it is within the valid range, the vehicle A reads the application group container.
  • Application layer information, business data included in the application layer information, industry After the information identification can be added to the V2X group, the vehicle A sends a request to the V2X control entity to join the V2X group to which the vehicle B belongs. The specific process is shown in Figure 1-1, and is not described here.
  • the first mobile device sends a second message carrying the second group identifier to the control entity.
  • the second message is used to request to join the second group, and the second message is a Joining Group Request, and the grouping request carries a V2X Group ID and a device identifier of the first mobile device, and the device
  • the identifier may be an international mobile subscriber identity of the first mobile device (English full name: International Mobile Subscriber Identity, English full name: IMSI).
  • the control entity receives the second message that is sent by the first mobile device and carries the second group of identifiers, and sends the third message to the first mobile device.
  • the third message may be a Joining Group Response
  • the Joining Group Response may carry the second group corresponding group address
  • the second group corresponding group address may be a V2X layer two group identifier (V2X Layer) -2Group ID), or V2X Group IP multicast address.
  • the second group corresponding group address is used by the first mobile device to send a group message in the second group after joining the second group.
  • control entity may further send the IMSI of the first mobile device to the home subscriber server (English full name: Home Subscriber Server, English Abbreviation: HSS), the first mobile device is authenticated by the HSS.
  • home subscriber server English full name: Home Subscriber Server, English Abbreviation: HSS
  • the first mobile device receives a third message sent by the control entity, uses the layer two group identifier and a layer three address of the second mobile device, or uses the multicast address and the second The layer three address of the mobile device sends a fourth message to the second mobile device.
  • the fourth message may be a V2X message, where the V2X message is used to indicate that the first mobile device requests to join the second group, and the V2X message may carry the user identifier and the application group of the first mobile device. container.
  • the second mobile device After receiving the fourth message, the second mobile device determines whether the first mobile device can join the second group.
  • the second mobile device After determining that the first mobile device can join the second group, the second mobile device sends a fifth message to the first mobile device.
  • the fifth message is a Join confirm message
  • the Join confirm may carry the second group corresponding multicast address, where the multicast address may be a V2X Group IP multicast Address, or the Join confirm carries a Two groups of corresponding layer two group identifiers (V2X Layer-2 Group ID).
  • the first mobile device receives a fifth message sent by the second mobile device, and broadcasts the group message in the second group by using the layer two group identifier and the multicast address.
  • the group message sent by the first mobile device in the second group may carry the application group container of the first mobile device, and may carry the New Comer field in the application group container to indicate that it is a new entrant.
  • other members (including the second mobile device) in the second group except the first mobile device update the group information of the second group, for example, update the member list, etc.
  • the identity of the joining party group cannot be authenticated (EMSI) between the mobile devices, in order to simultaneously ensure the identity of the first mobile device by the network side (for example, the controlling entity) And the right to ensure that the second mobile device determines that the first mobile device can join the second group, and can provide the first mobile device with the group address required to send the message in the second group by the controlling entity and the second mobile device respectively
  • the information of the group address includes the layer 2 group identifier and the multicast address.
  • the execution subject of the two is not limited.
  • the multicast address is provided by the second mobile device, that is, the third message carries the second group corresponding layer 2 group identifier (Layer-2 Group ID), where the The fifth message carries the second group corresponding multicast address (Group IP multicast Address).
  • the layer 2 group identifier is provided by the second mobile device, that is, the third message carries the second group corresponding multicast address (Group IP multicast address), the five messages. Carrying the second group corresponding layer two group identifier (Layer-2 Group ID).
  • the layer 2 group identifier is the identifier of the second group of the data link layer identifier
  • the multicast address is the identifier of the network layer identifier multicast address.
  • the second group of mobile devices are created, and the first mobile device is listed from the group member of the second group.
  • the scenario of deleting the second group refer to Figure 1-2. The details are not mentioned here.
  • the second group of policies may be configured in advance or temporarily, for example, the number of mobile devices joining the second group is added.
  • the effective activity duration is limited, the service level is restricted, or the user level is restricted.
  • the group members in the second group are maintained in a fixed range for a period of time, so that the mobile devices that join the second group can be avoided. There are too many problems caused by unnecessary group group messages, and reducing the power consumption due to the excessive number of members that may affect the members of the second group listening to too many groups of messages.
  • the mobile device of the group first updates the group information of the second group, and then the other members in the second group are synchronized with the second mobile device.
  • the manner of updating the group information is not limited herein. For the scenario in which the first mobile device leaves the second group, reference may be made hereafter, and will not be described later.
  • control entity may further create a group for the first mobile device, so that other mobile devices may join the group created for the first mobile device according to the group requirement, and in addition, each mobile device may create at least A group can also join at least one group.
  • the following process for the control entity to create the first group for the first mobile device is as follows:
  • the first mobile device sends a sixth message to a control entity.
  • the sixth message may be a V2X Group Request, where the V2X Group Request may carry a control cell, a user identifier of the first mobile device, and a request timer, where the control cell is used to the control entity.
  • the request timer can be used to time the sixth request. If the timing exceeds the preset time, the sixth message is invalid, and the control entity does not need to respond to the sixth request.
  • the control entity receives the sixth message sent by the first mobile device, and authenticates the right of the first mobile device to establish a group by using the HSS.
  • the control entity creates the first group for the first mobile device, and allocates a first group identifier for identifying the first group. : Group Identify, English abbreviation: Group ID) and group address information of the first group.
  • the control entity sends a seventh message to the first mobile device.
  • the seventh message may be a V2X Group Response, and the V2X Group Response may carry a first group of identifiers (eg, V2X Group IDs) for identifying the first group, and the first group of Group address information, the first group identifier is used by the first mobile device to join the first group; the group address information of the first group is used by the first mobile device to send a group message in the first group .
  • V2X Group Response may carry a first group of identifiers (eg, V2X Group IDs) for identifying the first group, and the first group of Group address information, the first group identifier is used by the first mobile device to join the first group; the group address information of the first group is used by the first mobile device to send a group message in the first group .
  • the group address information of the first group includes at least one of a layer 2 group ID (Layer-2 Group ID) corresponding to the first group and a group IP multicast address corresponding to the first group;
  • Layer-2 Group ID Layer-2 Group ID
  • group IP multicast address corresponding to the first group
  • the first group of corresponding layer two group identifiers and the first group corresponding multicast address are used by the first mobile device to send a group message in the first group, and may also be used to subsequently join the first group. Other mobile devices send group messages within the first group.
  • the first mobile device receives the seventh message sent by the control entity, joins the first group according to the first group identifier, and may also update group related information, for example, update the group member list.
  • FIGS. 1 to 2 above illustrates a group communication method in the present invention.
  • the following describes the control entity and the first mobile device of the method for performing the above group communication.
  • the control entity 30 includes:
  • the receiving module 301 is configured to receive, by the first mobile device, a second message that carries the second group of identifiers, where the second group identifies the first message sent by the second mobile device, and the second message is used to request to join the Depicting the second group identified by the second set of identifiers;
  • the sending module 302 is configured to send a third message to the first mobile device, where the third message carries a group address corresponding to the second group;
  • the second group corresponding group address is used by the first mobile device to send a group message in the second group after joining the second group.
  • the second message is a message that is sent by the first mobile device after determining, according to the first message, that the first mobile device meets a condition for joining the second group. .
  • the first message includes a second group of identifiers for identifying the second group to which the second mobile device belongs, and an application group container corresponding to the second group. ;
  • the second group of corresponding application group containers includes the second group of application layer information.
  • the first message is used to indicate a second group identifier of the second group to which the second mobile device belongs, and the second group corresponding application group container indication information ;
  • the second group of identifiers is used to identify the second group to which the second mobile device belongs;
  • the application group container indication information is used to indicate a location and a size of an application group container corresponding to the second group.
  • control entity further includes a processing module 303, where the processing module 303 is configured to:
  • the first mobile device transmits a group message within the first group.
  • the first mobile device 40 is described with reference to FIG. 4.
  • the first mobile device 40 includes:
  • the receiving module 401 is configured to receive a first message sent by the second mobile device, where the first message carries group indication information, where the group indication information is used to indicate information of the second group to which the second mobile device belongs;
  • the processing module 402 is configured to obtain, according to the group indication information, that the first mobile device meets the condition of joining the second group, and obtain, according to the group indication information, a second group identifier that is used to identify the second group. ;
  • a sending module 403, configured to send a second message that carries the second group identifier that is obtained by the processing module 402 to the control entity, where the second message is used to request to join the second group;
  • the processing module 402 is further configured to receive, by the receiving module 401, a third message that is sent by the control entity, where the third message carries a layer two group identifier corresponding to the second group;
  • the mobile device requests to join the second group;
  • the second message is a message that is sent by the first mobile device when determining, according to the group indication information, that the first mobile device meets a condition for joining the second group. .
  • the group indication information includes a second group identifier that is used to identify the second group to which the second mobile device belongs, and an application group container corresponding to the second group. ;
  • the second group of corresponding application group containers includes the second group of application layer information.
  • the group indication information is used to indicate a second group identifier of the second group to which the second mobile device belongs, and the second group corresponding application group container indication information;
  • the second group of identifiers is used to identify the second group to which the second mobile device belongs;
  • the application group container indication information is used to indicate a location and a size of an application group container corresponding to the second group.
  • the processing module 402 is further configured to:
  • a seventh message sent by the control entity where the seventh message carries a first group of identifiers for identifying the first group, and group address information of the first group,
  • the first group of identifiers and the group address information of the first group are allocated by the control entity for creating the first group for the first mobile device;
  • the group message is sent in the first group by the sending module 403.
  • the embodiment of the present invention further provides a communication system.
  • the communication system 50 includes:
  • the first mobile device 40 is as described in FIG.
  • the physical devices corresponding to all the receiving modules may be receivers, and the physical devices corresponding to all the sending modules may be transmitting.
  • the physical device corresponding to all processing modules may be a processor.
  • Each of the devices shown in Figures 3 and 4 can have the structure shown in Figure 12, when one of the devices has Figure 12
  • the processor, transmitter, and receiver in FIG. 12 implement the same or similar functions of the processing module, the transmitting module, and the receiving module provided by the apparatus embodiment corresponding to the apparatus, and the memory storage processing in FIG.
  • the embodiments described above with respect to FIGS. 1 to 2 are described from the perspective of the control entity providing a group communication service for the first mobile device, and the group communication service is jointly provided from the control entity and the application server, respectively, and the group is separately provided by the application server.
  • the communication service method explains the group communication method of the present application:
  • the embodiments of the present invention mainly include the following two scenarios:
  • the group communication service is provided by the control entity and the application server, that is, the second group is created by the control entity, and the application server subsequently provides the authentication service for joining the second group.
  • the second scenario a scenario in which a group communication service is separately provided by an application server, that is, a second group is created by an application server, and a group communication service is subsequently provided for joining the mobile devices of the second group.
  • the group address information is provided by the application server to the first mobile device.
  • the application server provides the first mobile device with the group added to the second group. Communication service.
  • the difference between the two scenarios is that the identifiers for identifying the second group are different because the layers in which the second group is created are different, and correspondingly, the application server receives the second group sent by the first mobile device.
  • the information used is also different.
  • the second entity is created by the control entity for the second mobile device, and the second group is identified by using the second group identifier (Group ID), and in the second scenario, the application server is the second group.
  • the mobile device identifies the second group by using an application layer group identifier (English name: Application Level Group Identity). Therefore, the content of the group indication information broadcast by the second mobile device received by the first mobile device is also different, so that the information according to the second group is different.
  • an embodiment of the present invention includes:
  • the first mobile device receives a first message sent by the second mobile device.
  • the first message is a V2X message
  • the V2X message may carry a group indicator, where the group indication information is used to indicate information of the second group to which the second mobile device belongs.
  • the second mobile device has joined the existing second group or created the second group.
  • the content carried by the group indication information is embodied as follows:
  • the group indication information includes a second group identifier (Group ID) for identifying the second group to which the second mobile device belongs, and corresponding to the second group.
  • the second group of corresponding application group containers includes the second group of application layer information.
  • the group indication information is used to indicate a second group identifier (Group ID) of the second group to which the second mobile device belongs, and an application corresponding to the second group.
  • Group instruction indicator Application group Container Indicator
  • the second group of identifiers is used to identify the second group to which the second mobile device belongs;
  • the second group corresponding application group container indication information is used to indicate the location and size of the application group container corresponding to the second group.
  • the group address information of the second group includes a Layer 2 Group ID corresponding to the second group, and a multicast address corresponding to the second group (Group IP) Multicast Address).
  • the group indication information is a second group of application group containers, and the second group of application group containers includes a second group of application layer groups.
  • logo English full name: Application level Group Identify, English abbreviation: App level Group ID).
  • the group address information of the second group includes: a Layer 2 Group ID corresponding to the application layer group identifier of the second group, and a multicast address corresponding to the application layer group identifier of the second group. (Group IP multicast Address).
  • the first mobile device sends, according to the group indication information, that the first mobile device meets a condition for joining the second group, sending a second message to the application server.
  • the second message may be a Joining Group Request
  • the Joining Group Request may carry the group identification information of the second group and the application layer user identifier of the first mobile device (English full name: Application level user Identify, English) Abbreviation: App level user ID).
  • the second message is used to request to join the second group.
  • the content of the second message is embodied as follows:
  • the second message carries the second group ID of the second group and the application level user ID of the first mobile device, corresponding to the first scenario.
  • the group identification information of the second group is the second group identifier (Group ID).
  • the second message carries a second group of application level group identifiers, an application level user ID of the first mobile device, and a second
  • the application layer information of the mobile device correspondingly, the group identification information of the second group is the application group group identifier of the second group.
  • the application server receives the second message sent by the first mobile device.
  • the application server sends a third message to the second mobile device.
  • the third message may be a Joining Group Notification
  • the Joining Group Notification may carry an application layer user identifier of the first mobile device, and also carry the application layer information of the first mobile device or the first a second group of corresponding application group containers (App Group Container), the third message is used to indicate that the second mobile device determines the right of the first mobile device to join the second group, and is used to indicate the A mobile device requests to join the second group.
  • the Joining Group Notification may carry an application layer user identifier (App level user ID) of the first mobile device, and a second group corresponding application group container (App Group Container).
  • App level user ID application layer user identifier
  • App Group Container second group corresponding application group container
  • the Joining Group Notification can carry the application layer user ID of the first mobile device and the application layer information of the first mobile device (English full name: Application Information, English) Abbreviation: App Info).
  • the second mobile device After the second mobile device confirms that the first mobile device can join the second group, it sends an acknowledgement message to the application server (English name: Acknowledge, English abbreviation: Ack).
  • the application server After receiving the Ack sent by the second mobile device, the application server sends a fourth message to the first mobile device.
  • the fourth message may be a Joining Group Response, where the Joining Group Response may carry the group address information of the second group, and the group address information of the second group is used. After the first mobile device joins the second group, the group message is sent in the second group.
  • the group address information of the second group is information corresponding to the second group identifier (Group ID).
  • the group address information of the second group is information corresponding to the application group group identifier (App level Group ID) of the second group.
  • the first mobile device receives a fourth message sent by the application server, adds the second group according to the group identification information of the second group, and uses the group address information of the second group in the The group message is sent within the second group.
  • the first mobile device may also request the application server or the control entity to create a group that belongs to itself, so that other mobile devices may join the group created for the first mobile device according to the group requirement, and Each mobile device can create at least one group or join at least one group.
  • the first mobile device requests the control entity to create the first group.
  • the control entity For the specific creation process, refer to the signaling interaction process shown in Figure 7.
  • the first mobile device sends a seventh message to a control entity.
  • the seventh message may be a V2X Group Request, where the V2X Group Request may carry an application layer user identifier (App level user ID) of the first mobile device, the control cell, a request timer, and The application level group container of the first mobile device, the application level group container includes application layer information of the first mobile device, and the control cell is used to request to create the first group.
  • V2X Group Request may carry an application layer user identifier (App level user ID) of the first mobile device, the control cell, a request timer, and The application level group container of the first mobile device, the application level group container includes application layer information of the first mobile device, and the control cell is used to request to create the first group.
  • the control entity receives the seventh message sent by the first mobile device, and authenticates the first mobile device by using the HSS.
  • the control entity After the HSS authenticates the first mobile device, the control entity sends an authentication request to the application server, where the authentication request carries an application layer user identifier (App level user ID) of the first mobile device, and the control cell.
  • Application layer group container of the first mobile device Application Level Group Container.
  • the control entity After receiving the Authen Request, the control entity creates the first group, and generates a first group identifier (Group ID) for identifying the first group.
  • Group ID first group identifier
  • the control entity sends a group notification message (Group Notification) to the application server.
  • the Group Notification may carry the first group identifier (Group ID) and the address information of the first group.
  • control entity After receiving the acknowledgment response returned by the application server, the control entity sends an eighth message to the first mobile device.
  • the eighth message may be a group response, and the group response may carry a first group identifier (Group ID), and group address information of the first group, group address information of the first group. And including a layer 2 group ID corresponding to the first group identifier, and a group IP multicast address corresponding to the first group identifier.
  • Group ID first group identifier
  • group IP multicast address corresponding to the first group identifier
  • the first mobile device receives an eighth message sent by the control entity, joins the first group according to the first group identifier, and is in the first according to the group address information of the first group. Broadcast group message within the group.
  • the first group of corresponding layer two group identifiers and the first group corresponding multicast address are used by the first mobile device to broadcast a group message in the first group after joining the second group.
  • the seventh message may further include an application group container of the first mobile device and an application layer user identifier of the first mobile device, where the application layer user identifier is used to identify an application layer identifier of the first mobile device,
  • the application group container of the first mobile device includes application layer information of the first mobile device, by separating the application group container and the application layer user identifier, so that the control entity does not need to parse the application layer user of the first mobile device from the application group container. Identify and simplify the process.
  • the first mobile device requests the application server to create the first group.
  • the specific creation process refer to the signaling interaction process shown in Figure 8.
  • the first mobile device sends a fifth message to an application server.
  • the fifth message may be a V2X Group Request, where the V2X Group Request may carry a control cell and an application layer user identifier, where the control cell is used to request to create a first group;
  • the application server receives a fifth message sent by the first mobile device, creates the first group for the first mobile device, and generates a first group of identifier information used to identify the first group.
  • the application server sends a sixth message to the first mobile device.
  • the sixth message may be a group response, and the group response may carry the group address information of the first group and the first group of identifier information used to identify the first group.
  • the first mobile device receives the sixth message sent by the application server, adds the first group according to the first group of identifier information, and according to the group address information of the first group, in the first A group of intra broadcast group messages.
  • the first group of identification information is an application level group identifier (App Level Group ID) for identifying the first group.
  • App Level Group ID application level group identifier
  • the group address information of the first group includes a layer 2 group ID (Layer-2 Group ID) corresponding to the first group, and a group IP multicast address corresponding to the first group;
  • the first group corresponding layer 2 group identifier and the first group corresponding multicast address are used by the first mobile device to send a group message in the first group.
  • FIGS. 6-8 above illustrates a group communication method in the present invention.
  • the following describes the control entity and the first mobile device of the method for performing the above group communication.
  • the application server 90 is described with reference to FIG. 9.
  • the application server 90 includes:
  • the receiving module 901 is configured to receive a second message sent by the first mobile device, where the second message carries the group identification information of the second group and the application layer user identifier of the first mobile device, where the second message is the Receiving, by the mobile device, a first message that is sent by the second mobile device and carrying the group indication information, and determining, according to the group indication information, a message that is sent when the first mobile device meets the condition of joining the second group;
  • the group indication information is used to indicate a second group to which the second mobile device belongs;
  • the sending module 902 is configured to send a fourth message to the first mobile device, where the fourth message carries the group address information corresponding to the second group, and the group address information corresponding to the second group is used by the sending After the first mobile device joins the second group, the group message is sent within the second group.
  • the group indication information includes the second group corresponding application group container, and the sending module 902 is further configured to:
  • Transmitting a third message to the second mobile device where the third message carries an application group container of the first mobile device and an application layer user identifier of the first mobile device, where the third message is used to indicate The first mobile device requests to join the second group.
  • the group identifier information of the second group is an application layer group identifier of the second group.
  • the second group corresponding group address information includes: a layer two group identifier corresponding to the application group group identifier of the second group, and an application layer group of the second group Identifies the corresponding multicast address.
  • the group indication information includes a second group identifier for identifying the second group, and the second group corresponding to the application group container, the second group
  • the group identification information is the second group identifier
  • the second group of corresponding application group containers includes the second group of application layer information.
  • the group indication information is used to indicate the second group identifier of the second group, and the second group corresponding application group container indication information
  • the second group The group identification information is the second group identifier
  • the second group of identifiers is used to identify the second group to which the second mobile device belongs;
  • the second group corresponding application group container indication information is used to indicate the location and size of the application group container corresponding to the second group.
  • the second group corresponding group address information includes the second group corresponding layer two group identifier, and the second group corresponding multicast address.
  • the application server 90 further includes a processing module 903, where the processing module 903 is further configured to:
  • the first mobile device sends a group message within the first group.
  • the first mobile device 100 is described with reference to FIG. 10.
  • the first mobile device 100 includes:
  • the receiving module 1001 is configured to receive a first message sent by the second mobile device, where the first message carries group indication information, where the group indication information is used to indicate information of the second group to which the second mobile device belongs;
  • the sending module 1002 is configured to send, according to the group indication information, that the first mobile device meets the condition of joining the second group, sending a second message to the application server, where the second message carries The second group of group identification information and the application layer user identifier of the first mobile device, the second message is used to request to join the second group;
  • the processing module 1003 is configured to receive, by the receiving module 1001, a fourth message sent by the application server, where the fourth message includes the group address information corresponding to the second group;
  • the group indication information includes the second group corresponding application group container, and the fourth message is that the application server is to carry the second group corresponding application group.
  • the second mobile device determines that the first mobile device has the right to join the second group and then sends the message.
  • the third message is used to instruct the second mobile device to determine the right of the first mobile device to join the second group, and to instruct the first mobile device to request to join the second group.
  • the group identifier information of the second group is an application layer group identifier of the second group.
  • the second group corresponding group address information includes: a layer two group identifier corresponding to the application group group identifier of the second group, and an application layer group of the second group Identifies the corresponding multicast address.
  • the group indication information includes a second group identifier for identifying the second group, and the second group corresponding to the application group container, the second group
  • the group identification information is the second group identifier
  • the second group of corresponding application group containers includes the second group of application layer information.
  • the group indication information is used to indicate the second group identifier of the second group, and the second group corresponding application group container indication information
  • the second group The group identification information is the second group identifier
  • the second group of identifiers is used to identify the second group to which the second mobile device belongs;
  • the second group corresponding application group container indication information is used to indicate the location and size of the application group container corresponding to the second group.
  • the second group corresponding group address information includes the second group corresponding layer two group identifier, and the second group corresponding multicast address.
  • the processing module 1003 is further configured to:
  • the sixth message sent by the application server where the sixth message carries the group address information of the first group and the first group of identifier information used to identify the first group, the first The group identification information is generated after the application server creates the first group for the first mobile device.
  • the first group of identifier information is an application layer group identifier used to identify the first group
  • the group address information of the first group includes a layer 2 group identifier corresponding to the first group corresponding to the first group, and a multicast address corresponding to the first group corresponding to the first group;
  • the first group corresponding layer 2 group identifier and the first group corresponding multicast address are used by the first mobile device to send a group message in the first group.
  • the processing module 1003 is further configured to:
  • an eighth message sent by the control entity where the eighth message carries a first group of identifiers for identifying the first group, and group address information of the first group,
  • the first set of identifiers is generated by the control entity creating the first group for the first mobile device.
  • the embodiment of the present invention further provides a communication system.
  • the communication system 110 includes:
  • the application server 90 as shown in FIG. 9;
  • the first mobile device 100 is as described in FIG.
  • the physical devices corresponding to all the receiving modules may be receivers, and the physical devices corresponding to all the sending modules may be transmitting.
  • the physical device corresponding to all processing modules may be a processor.
  • Each of the devices shown in FIGS. 9 and 10 may have a structure as shown in FIG. 12, and when one of the devices has the structure shown in FIG. 12, the processor, the transmitter, and the receiver in FIG. 12 implement the foregoing.
  • the processing module, the transmitting module, and the receiving module provided by the device embodiment of the device have the same or similar functions, and the memory storing processor in FIG. 12 needs to call the program code when executing the method of group communication.
  • the present invention also provides a computer storage medium storing a program that, when executed, includes some or all of the steps of the control entity or application server or the first mobile device performing the group communication.
  • the structure of the control entity herein includes a processor, a receiver, and a transmitter configured to support a control entity to perform the corresponding functions in the above methods.
  • the receiver and the transmitter are configured to support communication between the first mobile device and the application server, and transmit information or instructions involved in the above method to the first mobile device or the application server.
  • the control entity may further include a memory for coupling with the processor, which stores program code and data necessary for the operator server, and other devices are similar, and are not described herein.
  • the disclosed system, apparatus, and method may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the modules is only a logical function division.
  • there may be another division manner for example, multiple modules or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or module, and may be electrical, mechanical or otherwise.
  • the modules described as separate components may or may not be physically separated.
  • the components displayed as modules may or may not be physical modules, that is, may be located in one place, or may be distributed to multiple network modules. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional module in each embodiment of the present invention may be integrated into one processing module, or each module may exist physically separately, or two or more modules may be integrated into one module.
  • the above integrated modules can be implemented in the form of hardware or in the form of software functional modules.
  • the integrated modules if implemented in the form of software functional modules and sold or used as separate products, may be stored in a computer readable storage medium.
  • the technical solution of the present invention which is essential or contributes to the prior art, or all or part of the technical solution, may be embodied in the form of a software product stored in a storage medium.
  • a number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read only memory (English full name: Read-Only Memory, English abbreviation: ROM), a random access memory (English full name: Random Access Memory, English abbreviation: RAM), magnetic A variety of media that can store program code, such as a disc or a disc.

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

Abstract

La présente invention concerne un procédé, un dispositif et un système de communication de groupe, le procédé comprenant : une entité de commande recevant un second message portant un second identifiant de groupe envoyé par un premier dispositif mobile, le second identifiant de groupe provenant d'un premier message envoyé par un second dispositif mobile, et le second message étant utilisé pour demander de rejoindre un second groupe identifié par le second identifiant de groupe; l'entité de commande envoyant un troisième message au premier dispositif mobile, le troisième message portant une adresse de groupe correspondant au deuxième groupe; l'adresse correspondant au second groupe étant utilisée pour envoyer des messages dans le second groupe après que le premier dispositif mobile a été ajouté au second groupe. La présente solution résout le problème d'un véhicule dans un réseau de véhicule ne pouvant pas acquérir une adresse de groupe pour envoyer des messages dans le groupe juste avant d'être ajouté au groupe.
PCT/CN2016/087868 2016-06-30 2016-06-30 Procédé, dispositif et système de communication de groupe WO2018000312A1 (fr)

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PCT/CN2016/087868 WO2018000312A1 (fr) 2016-06-30 2016-06-30 Procédé, dispositif et système de communication de groupe

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