CN110972336B - Communication method and device - Google Patents

Communication method and device Download PDF

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Publication number
CN110972336B
CN110972336B CN201811150818.6A CN201811150818A CN110972336B CN 110972336 B CN110972336 B CN 110972336B CN 201811150818 A CN201811150818 A CN 201811150818A CN 110972336 B CN110972336 B CN 110972336B
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network element
session
message
access network
network node
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CN110972336A (en
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葛翠丽
周国良
杨艳梅
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/15—Setup of multiple wireless link connections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
    • H04W36/0022—Control or signalling for completing the hand-off for data sessions of end-to-end connection for transferring data sessions between adjacent core network technologies
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/14—Reselecting a network or an air interface
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/16—Performing reselection for specific purposes
    • H04W36/18—Performing reselection for specific purposes for allowing seamless reselection, e.g. soft reselection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/11—Allocation or use of connection identifiers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/40—Connection management for selective distribution or broadcast

Abstract

The application provides a communication method and a device, and the method comprises the following steps: an access network node receiving indication information from a local network element, the indication information being used to indicate an attribute of a first session between the access network node and the local network element, the attribute comprising a pre-established and/or public safety isolated E-UTRAN mode IOPS; and the access network node sends a first message to the local network element according to the indication information, wherein the first message is used for indicating the local network element to suspend the first session. The communication method and the communication device provided by the application can ensure that the communication is normally carried out under the condition that the access network node has the broadcast session with the macro network element and the local network element at the same time.

Description

Communication method and device
Technical Field
The embodiment of the application relates to the technical field of communication, in particular to a communication method and device.
Background
The failure (e.g. interruption) of the connection between the base station and the macro network element may cause the terminal equipment to fail to normally communicate, and especially may affect the public safety service, for example, the communication interruption of the public safety user (police, fire, etc.) reduces the task execution efficiency. In order to solve the problem, the third Generation Partnership Project (3 GPP) proposes Isolated E-UTRAN Operation (IOPS) for Public Safety, so that the base station can turn on the IOPS mode to connect to the local core network to ensure normal communication of the terminal device in case of communication interruption between the base station and the macro network element.
In public safety service, broadcasting is an important characteristic, and when the connection between the base station and the macro network element is normal, a mode of pre-establishing a broadcast session between the base station and the local network element can be adopted to reduce the broadcast transmission delay caused by switching. However, when the base station has a broadcast session with the macro network element and the local network element at the same time, because the broadcast session between the base station and the macro network element and the broadcast session between the base station and the local network element use the air interface broadcast resource of the same base station during data transmission, the two simultaneous broadcast sessions may cause a conflict in scheduling of the broadcast resource of the base station, and further cause that the terminal device cannot normally communicate through the broadcast session.
Disclosure of Invention
The embodiment of the application provides a communication method and a communication device, which can ensure that communication is normally performed under the condition that an access network node has a broadcast session with a macro network element and a local network element at the same time.
A first aspect of the present application provides a communication method, including:
an access network node receives indication information from a local network element, wherein the indication information is used for indicating the attribute of a first session between the access network node and the local network element, and the attribute comprises pre-establishment and/or IOPS;
and the access network node sends a first message to the local network element according to the indication information, wherein the first message is used for indicating the local network element to suspend the first session.
In this scheme, the local network element may send the indication information to the access network node in the process of establishing a session between the local network element and the access network node, may also send the indication information to the access network node before the session is established, and may also send the indication information to the access network node after the session is established.
In addition, after receiving the indication information sent by the local network element, the access network node sends a first message, for example, an M2reset message, to the local network element according to the indication information.
In the above scheme, after receiving the indication information sent by the local network element, the access network node sends the first message to the local network element, and the local network element suspends the first session, where the indication information is used to indicate that the attribute of the first session may be pre-established and/or IOPS, so that the access network node will only process data sent by the macro network element, and will not process data transmitted by the local network element through the first session, thereby ensuring that communication is performed normally when the access network node has a broadcast session with the macro network element and the local network element at the same time.
In one possible implementation, the first session is a multimedia broadcast/multicast service, MBMS, session.
When the first session is a Multimedia Broadcast/Multicast Service (MBMS) session, Broadcast transmission of user data can be achieved when the terminal is switched to the local IOPS trunking system and uses the IOPS network, and data can be transmitted quickly and efficiently.
In one possible implementation, the method further includes:
and the access network node does not process the data transmitted by the local network element through the first session according to the indication information.
In this scheme, after receiving the indication information, the access network node determines not to process data transmitted from the local network element through the first session, where the data includes a signaling and/or a data packet.
In the above solution, even if the access network node and the local network element have a broadcast session with the macro network element at the same time, since the access network node will not process the signaling and/or data packet transmitted by the first session from the local network element, but only process the signaling and/or data packet from the macro network element, it can be ensured that the communication is normally performed when the access network node and the macro network element have a broadcast session at the same time.
In one possible implementation, the method further includes:
the access network node determines that communication between the access network node and a macro network element is interrupted;
and the access network node sends a second message to the local network element, wherein the second message is used for indicating the local network element to start the first session.
In this scheme, if the access network node determines that the communication between the access network node and the macro network element is interrupted, that is, when the access network node and the macro network element cannot perform normal communication, the access network node may send a second message to the local network element, where the second message may be, for example, an M2start message or an M2setup message.
In the above scheme, the local network element restarts the first session in the suspended state according to the received second message, and at this time, the access network node may communicate with the local network element through the restarted first session, thereby ensuring normal operation of communication. In addition, because the first session between the access network node and the local network element is pre-established, the broadcast transmission delay caused by switching the user data to the IOPS network can be reduced when the local network element is enabled.
In one possible implementation, the method further includes:
the access network node determines that the communication between the access network node and the macro network element is recovered to be normal;
the access network node sends a third message to the local network element, where the third message is used to instruct the local network element to suspend the first session;
and the access network node sends a fourth message to the macro network element, where the fourth message is used to instruct the macro network element to start a second session, and the second session is a session between the access network node and the macro network element.
In this scheme, if it is determined that the communication between the access network node and the macro network element is restored to normal, that is, normal data communication can be performed between the access network node and the macro network element, the access network node sends a third message to the local network element, where the third message may be, for example, an M2reset message.
In the above solution, after the access network node determines that the communication between the access network node and the macro network element is recovered to normal, the access network node instructs the local network element to suspend the first session between the local network element and the access network node, and instructs the macro network element to start the second session between the macro network element and the access network node, so that the access network node will not process the data transmitted by the first session from the local network element, but process the data transmitted by the second session from the macro network element, thereby ensuring that the communication is performed normally when the access network node has a broadcast session with the macro network element and the local network element at the same time.
In a possible implementation manner, the indication information is carried in an MBMS session start request message, MBMS scheduling information, an M2setup response message, an M2configuration update response message, an M2configuration update request message, or an MBMS session update request message.
A second aspect of the present application provides a communication method, including:
a local network element sends indication information to an access network node, wherein the indication information is used for indicating the attribute of a first session between the access network node and the local network element, and the attribute comprises pre-established and/or IOPS;
the local network element receiving a first message from the access network node;
and the local network element suspends the first session according to the first message.
In this scheme, the local network element may send the indication information to the access network node in the process of establishing the session between the local network element and the access network node, may also send the indication information to the access network node before the session is established, and may also send the indication information to the access network node after the session is established.
In addition, after receiving the indication information sent by the local network element, the access network node sends a first message, for example, an M2reset message, to the local network element according to the indication information.
In the above scheme, after receiving the indication information sent by the local network element, the access network node sends the first message to the local network element, and the local network element suspends the first session, where the indication information is used to indicate that the attribute of the first session may be pre-established and/or IOPS, so that the access network node will only process data sent by the macro network element, and will not process data transmitted by the local network element through the first session, thereby ensuring that communication is performed normally when the access network node has a broadcast session with the macro network element and the local network element at the same time.
In one possible implementation, the first session is an MBMS session.
When the first session is an MBMS session, broadcast transmission of user data can be achieved when the terminal is switched to the local IOPS trunking system and uses the IOPS network, and data can be transmitted quickly and efficiently.
In one possible implementation, the method further includes:
the local network element receiving a second message from the access network node;
and the local network element starts the first session according to the second message.
In this scheme, if the access network node determines that the communication between the access network node and the macro network element is interrupted, that is, when the access network node and the macro network element cannot perform normal communication, the access network node may send a second message to the local network element, where the second message may be, for example, an M2start message or an M2setup message.
In the above scheme, the local network element restarts the first session in the suspended state according to the received second message, and at this time, the access network node may communicate with the local network element through the restarted first session, thereby ensuring normal operation of communication. In addition, because the first session between the access network node and the local network element is pre-established, the broadcast transmission delay caused by switching the user data to the IOPS network can be reduced when the local network element is enabled.
In one possible implementation, the method further includes:
receiving, by the local network element, a third message from the access network node;
and the local network element suspends the first session according to the third message.
In this scheme, if it is determined that the communication between the access network node and the macro network element is restored to normal, that is, normal data communication can be performed between the access network node and the macro network element, the access network node sends a third message to the local network element, where the third message may be, for example, an M2reset message.
In the above solution, after the access network node determines that the communication between the access network node and the macro network element is recovered to normal, the access network node instructs the local network element to suspend the first session between the local network element and the access network node, and instructs the macro network element to start the second session between the macro network element and the access network node, so that the access network node will not process the data transmitted by the first session from the local network element, but process the data transmitted by the second session from the macro network element, thereby ensuring that the communication is performed normally when the access network node has a broadcast session with the macro network element and the local network element at the same time.
In a possible implementation manner, the sending, by the local network element, the indication information to the access network node includes:
the local network element receives the indication information from a server;
and the local network element sends the indication information to the access network node.
In a possible implementation manner, the indication information is carried in an MBMS session start request message, MBMS scheduling information, an M2setup response message, an M2configuration update response message, an M2configuration update request message, or an MBMS session update request message.
A third aspect of the present application provides a communication apparatus comprising:
a receiving module, configured to receive indication information from a local network element, where the indication information is used to indicate an attribute of a first session between an access network node and the local network element, and the attribute includes pre-establishment and/or IOPS;
a sending module, configured to send a first message to the local network element according to the indication information, where the first message is used to indicate the local network element to suspend the first session.
In one possible implementation, the first session is an MBMS session.
In one possible implementation, the apparatus further includes:
and the processing module is used for not processing the data transmitted from the local network element through the first session according to the indication information.
In a possible implementation manner, the processing module is further configured to determine that communication between the access network node and a macro network element is interrupted;
the sending module is further configured to send a second message to the local network element, where the second message is used to instruct the local network element to start the first session.
In a possible implementation manner, the processing module is further configured to determine that communication between the access network node and the macro network element is recovered to be normal;
the sending module is further configured to send a third message to the local network element, where the third message is used to instruct the local network element to suspend the first session;
the sending module is further configured to send a fourth message to the macro network element, where the fourth message is used to instruct the macro network element to start a second session, and the second session is a session between the access network node and the macro network element.
In a possible implementation manner, the indication information is carried in an MBMS session start request message, MBMS scheduling information, an M2setup response message, an M2configuration update response message, an M2configuration update request message, or an MBMS session update request message.
A fourth aspect of the present application provides a communication apparatus comprising:
a sending module, configured to send indication information to an access network node, where the indication information is used to indicate an attribute of a first session between the access network node and the local network element, and the attribute includes pre-establishment and/or IOPS;
a receiving module for receiving a first message from the access network node;
and the processing module is used for suspending the first session according to the first message.
In one possible implementation, the first session is an MBMS session.
In a possible implementation manner, the receiving module is further configured to receive a second message from the access network node;
the processing module is further configured to start the first session according to the second message.
In a possible implementation manner, the receiving module is further configured to receive a third message from the access network node;
the processing module is further configured to suspend the first session according to the third message.
In a possible implementation manner, the receiving module is further configured to receive the indication information from a server;
the sending module is further configured to send the indication information to the access network node.
In a possible implementation manner, the indication information is carried in an MBMS session start request message, MBMS scheduling information, an M2setup response message, an M2configuration update response message, an M2configuration update request message, or an MBMS session update request message.
A fifth aspect of the present application provides a computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements the method of the first aspect or any possible implementation of the first aspect.
A sixth aspect of the present application provides a computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements the method of the second aspect or any possible implementation of the second aspect.
A seventh aspect of the present application provides a communication device, comprising a memory, a processor, and a program stored on the memory and executable on the processor, wherein the processor implements the first aspect or the method in any possible implementation manner of the first aspect when executing the program.
An eighth aspect of the present application provides a communication device comprising a memory, a processor and a program stored on the memory and executable on the processor, the processor implementing the second aspect or the method in any possible implementation manner of the second aspect when executing the program.
According to the communication method and the communication device, the access network node receives indication information from the local network element, the indication information is used for indicating the attribute of a first session between the access network node and the local network element, the attribute comprises pre-establishment and/or IOPS, the access network node sends a first message to the local network element according to the indication information, and the first message is used for indicating the local network element to suspend the first session. By the method, the access network node only processes the data sent by the macro network element and does not process the data transmitted by the local network element through the first session, so that the normal communication can be ensured under the condition that the access network node has broadcast sessions with the macro network element and the local network element at the same time.
Drawings
Fig. 1 is a schematic diagram of a possible system architecture provided by an embodiment of the present application;
fig. 2 is a flowchart illustrating a communication method according to an embodiment of the present application;
fig. 3 is a schematic flowchart of another communication method according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of a communication device according to an embodiment of the present application;
fig. 5 is a schematic structural diagram of another communication device according to an embodiment of the present application;
fig. 6 is a schematic structural diagram of another communication device according to an embodiment of the present application;
fig. 7 is a schematic structural diagram of an access network node according to an embodiment of the present application;
fig. 8 is a schematic structural diagram of a local network element according to an embodiment of the present application.
Detailed Description
Hereinafter, some terms in the present application are explained to facilitate understanding by those skilled in the art.
1) A terminal device, which may also be referred to as a User Equipment (UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote terminal, a mobile device, a user terminal, a wireless communication device, a user agent, or a user equipment. The terminal device may be a Station (ST) in a Wireless Local Area Network (WLAN), or may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA) device, a handheld device with a wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, and a next-generation communication system, for example, a terminal device in a fifth-generation communication (5G) network, or a terminal device in a future evolved Public Land Mobile Network (PLMN) network.
By way of example and not limitation, in the embodiments of the present application, the terminal device may also be a wearable device. Wearable equipment can also be called wearable intelligent equipment, is the general term of applying wearable technique to carry out intelligent design, develop the equipment that can dress to daily wearing, like glasses, gloves, wrist-watch, dress and shoes etc.. A wearable device is a portable device that is worn directly on the body or integrated into the clothing or accessories of the user. The wearable device is not only a hardware device, but also realizes powerful functions through software support, data interaction and cloud interaction. The generalized wearable smart device includes full functionality, large size, and can implement full or partial functionality without relying on a smart phone, such as: smart watches or smart glasses and the like, and only focus on a certain type of application functions, and need to be used in cooperation with other devices such as smart phones, such as various smart bracelets for physical sign monitoring, smart jewelry and the like.
2) An access network node may be a device for communicating with a terminal device. May be a Radio Access Network (RAN) node, e.g., an evolved node B (eNB or eNodeB), in a 4th generation (4G) network. The access network node may also be AN Access Network (AN) node in a 5th generation (5G) network, AN Access Point (AP) in a WLAN, a base station (BTS) in a global system for mobile communication (GSM) or Code Division Multiple Access (CDMA), a base station (nodeB, NB) in a Wideband Code Division Multiple Access (WCDMA), a relay station, or a vehicle-mounted device. The access network node may also be a wearable device, or an access network node in a future evolved network, etc.
3) The local network element, which is a device located in a local network, may be used in an air interface broadcast transmission mode (single-cell-point-to-multipoint (SCPTM) mode) or a multicast/multicast single frequency network (MBSFN) mode. Such as a Multi-cell/Multicast Coordination Entity (MCE). The local network element may be deployed in an independent physical device, may be deployed in one physical device with an Access network node, and may also be deployed in one physical device with an Access and Mobility Management Function (AMF).
4) The macro network element, which is a device located in the macro network, may be used in an air interface broadcast transmission mode (SCPTM mode) or an MBSFN mode. Such as MCE. The macro network element may be deployed in an independent physical device, may be deployed in a physical device together with the access network node, and may be deployed in a physical device together with the AMF.
The home network is a mobile communication network that provides communication services only for a specific area, and includes a base station and a home core network, where the home core network is generally a small-sized, backup core network and can be connected to the base station to provide communication services for the specific area when the base station and the macro core network fail. The macro network refers to a mobile communication network in a normal operation mode. The local network and the macro network may be, without limitation, a 4G network, a 5G network, or a future-evolution communication network.
5) In the present application, "at least one" may mean one or more, "a plurality" means two or more. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone, wherein A and B can be singular or plural. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. "at least one of the following" or similar expressions refer to any combination of these items, including any combination of the singular or plural items. For example, at least one (one) of a, b, or c, may represent: a, b, c, a-b, a-c, b-c, or a-b-c, wherein a, b, c may be single or multiple. The ranges described as "above" or "below" and the like include boundary points.
6) Units in this application refer to functional units or logical units. It may be in the form of software whose function is carried out by a processor executing program code; but may also be in hardware.
Those skilled in the art can understand that the communication method provided by the embodiment of the present application can be applied to a 4G, 5G or future evolution communication system, and can also be applied to other wireless communication networks. Fig. 1 is a schematic diagram of a possible system architecture according to an embodiment of the present disclosure.
As shown in fig. 1, the system comprises a terminal device 10, an access network node 20, a local network element 30 and a macro network element 40. The terminal device 10 may be, for example, a UE, the access network node 20 may be a base station (NodeB, eNB, gNB, etc.), the local network element 30 may be an MCE, and the macro network element 40 may also be an MCE.
On the basis of the system architecture shown in fig. 1, a failure of the connection between the access network node 20 and the macro network element 40 may result in that the terminal device 10 cannot communicate normally, and in particular, may affect public safety services, for example, a communication interruption of a public safety user (police, fire, etc.) affects the execution of a task. To solve this problem, 3GPP proposes an IOPS, so that in case of communication interruption between the access network node 20 and the macro network element 40, the access network node 20 may start an IOPS mode to connect to the local network element 30, ensuring normal communication of the terminal device 10. In practical applications, when the base station and the macro network element are connected normally, a broadcast session between the base station and the local network element may be pre-established to reduce the broadcast transmission delay caused by handover. However, when the access network node 20 and the macro network element 40 and the local network element 30 both have a broadcast session, the broadcast session between the access network node 20 and the macro network element 40 and the broadcast session between the access network node 20 and the local network element 30 use the air interface broadcast resource of the same access network node 20 during data transmission, and the two simultaneous broadcast sessions may cause a conflict in scheduling of the broadcast resource of the access network node 20, thereby causing the terminal device 10 to be unable to normally communicate through the broadcast session.
In view of these situations, an embodiment of the present application provides a communication method, where an access network node receives indication information from a local network element, where the indication information is used to indicate an attribute of a first session between the access network node and the local network element, where the attribute includes pre-establishment and/or IOPS, and the access network node sends a first message to the local network element according to the indication information, where the first message is used to indicate that the local network element suspends the first session. The access network node receives the indication information sent by the local network element, and then sends a first message to the local network element, and the local network element suspends the first session, wherein the indication information is used for indicating that the attribute of the first session can be pre-established and/or IOPS, so that the access network node only processes data sent by the macro network element, and does not process data sent by the local network element through the first session, thereby ensuring that communication is normally performed under the condition that the access network node has broadcast sessions with the macro network element and the local network element at the same time.
Fig. 2 is a flowchart illustrating a communication method according to an embodiment of the present application, which is described as follows.
Step 201, the access network node receives indication information from a local network element.
The indication information is used to indicate an attribute of a first session between the access network node and the local network element, where the first session is a broadcast session, and may be an MBMS session or a group session, for example, and the attribute of the first session includes pre-establishment and/or IOPS. When the first session is an MBMS session, when the terminal is switched to the local IOPS trunking system and uses the IOPS network, broadcast transmission of user data can be realized, and data can be transmitted quickly and efficiently.
For example, the indication information may be used to indicate that the first session between the access network node and the local network element is a pre-established session and/or an IOPS session.
Wherein the pre-established session may be a reserved session. If the attribute of the first session is pre-established, it indicates that the first session is pre-established, and there is no application service to use the first session. In other words, after the first session is established, it may not be used to transmit data immediately, but may be used to transmit different service data subsequently.
Wherein the IOPS session is a session established by a local core network in the IOPS network. If the attribute of the first session is IOPS, it indicates that the first session is a session established by a local core network in the IOPS network.
Alternatively, the indication information is used to indicate that the access network node does not need to process data transmitted by the local core network through the first session. And may be represented in different explicit or implicit manners, without limitation.
In this step, the local network element may send the indication information to the access network node in the process of establishing the session between the local network element and the access network node, may also send the indication information to the access network node before the session is established, and may also send the indication information to the access network node after the session is established.
The indication information may be carried in an MBMS session start request (MBMS session start request) message, an MBMS scheduling information (MBMS scheduling information), an M2Setup response (M2Setup response) message, an M2configuration update response (M2configuration update) message, an M2configuration update request (M2configuration update request) message, or an MBMS session update request (MBMS session update request) message.
In one possible implementation, the local network element may receive the indication information from the server and send the received indication information to the access network node. The server is an application server, such as an emergency mission critical push to talk (ptt) server, an emergency mission video (MCVideo) server, an emergency mission data (MCData) server, or a Group Communication Service (GCS) application server, and may also be another application server, which is not limited herein.
Specifically, assuming that the first session is a Broadcast session, a Broadcast-Multicast Service Center (BM-SC) in the local network receives the indication information from the server. The indication information may be carried in an MBMS bearer activation request (MBMS bearer activation request) message and sent to the BM-SC. After receiving the indication information, the BM-SC may send the indication information to a Multimedia Broadcast/Multicast Gateway (MBMS GW) in the local network, where the MBMS session start message (MBMS session start) or MBMS session update message (MBMS session update) includes the indication information, and the MBMS-GW sends the indication information to a local network element in the local network, such as an MCE, which then sends the indication information to an access network node.
Step 202, the access network node sends a first message to the local network element according to the indication information.
Wherein the first message is used to instruct the local network element to suspend the first session.
In an alternative manner, when the indication information indicates that the first session is a pre-established session, the access network node sends the first message to the local network element by determining that data transmitted by the local network element through the first session does not need to be processed.
In another optional manner, when the indication information indicates that the first session is an IOPS session, the access network node sends the first message to the local network element by determining that it is not necessary to process data transmitted by the local network element through the first session.
In yet another alternative, when the indication information indicates that the first session is a pre-established session and an IOPS session, the access network node sends the first message, e.g., an M2reset message, to the local network element by determining that data transmitted by the local network element through the first session does not need to be processed.
The first message may further include an M2 logical connection identifier, and the M2 logical connection identifier may include two endpoint identifiers of the M2 logical connection, that is, an access network node M2 logical connection identifier and a local network element M2 connection identifier. The M2 logical connection id is used to instruct the local network element to suspend the session of the access network node corresponding to the M2 logical connection id, which includes the first session (generally, one M2 logical connection id corresponds to only one MBMS session at the same time), and further, the first message also includes the first session id, and the local network element suspends the first session according to the first session id at this time.
It should be noted that in the embodiments of the present application, suspending a session may be understood as that the local network element retains context information of the session, such as an identification of the session, a Quality of Service (QoS) of the session, an identification of the M2 logical connection, and the like.
Illustratively, after suspending the first session, the access network node will only process data sent from the macro network element and not process data transmitted through the first session from the local network element.
Specifically, after receiving the indication information sent by the local network element, the access network node determines not to process the data transmitted by the first session from the local network element (which may also be understood as stopping processing the data transmitted by the first session from the local network element), and at this time, the access network node will only process the data from the macro network element. In this way, even if the access network node and the local network element have a broadcast session with the macro network element at the same time, since the first session between the access network node and the local network element is suspended, the access network node will not process the data transmitted by the first session from the local network element, but only process the data from the macro network element, thereby ensuring that the communication is normally performed in the case that the access network node has a broadcast session with the macro network element and the local network element at the same time.
Illustratively, after receiving the indication information sent by the local network element, the access network node determines whether the communication between the access network node and the macro network element is normal, and if it is determined that the communication between the access network node and the macro network element is normal, the access network node sends the first message to the local network element.
The data mentioned in the embodiments of the present application may be signaling or data packets, and is not limited.
In the communication method provided by the embodiment of the present invention, the access network node receives indication information from the local network element, where the indication information is used to indicate an attribute of a first session between the access network node and the local network element, where the attribute includes pre-establishment and/or IOPS, and the access network node sends a first message to the local network element according to the indication information, where the first message is used to indicate the local network element to suspend the first session. By the method, the access network node only processes the data sent by the macro network element and does not process the data transmitted by the local network element through the first session, so that the normal communication can be ensured under the condition that the access network node has broadcast sessions with the macro network element and the local network element at the same time.
Optionally, in an implementation scenario of the foregoing embodiment, the method further includes:
the access network node determines that the communication between the access network node and the macro network element is interrupted, and sends a second message to the local network element.
Specifically, the access network node may determine that the communication between the access network node and the macro network element is interrupted through an interface error signaling or an error code between the access network node and the macro network element.
The second message may be used to instruct the local network element to start the first session, and may be an M2start message or an M2setup message, for example. The second message contains M2 logical connection identification of the local network element and the access network node.
For example, when the communication between the access network node and the macro network element is normal, the access network node generally transmits data through a second session between the access network node and the macro network element, and if the access network node determines that the communication between the access network node and the macro network element is interrupted, that is, the access network node and the macro network element cannot perform normal communication, the access network node sends a second message to the local network element.
Correspondingly, the local network element receives the second message from the access network node and starts the first session according to the second message.
It is noted that in the embodiments of the present application, initiating a session may be understood as that a local network element uses the context of a locally retained suspended session and sends data, which may include control signaling and user plane data packets, to an access network node through the session.
Illustratively, the local network element restarts the first session in the suspended state according to the received second message. Specifically, the local network element determines to initiate a session of the access network node corresponding to the M2 logical identifier according to the M2 logical connection identifier in the second message, wherein the session includes the first session. Furthermore, the second message also contains a first session identifier, and the local network element starts the first session according to the first session identifier. At this point, the access network node will communicate with the local network element via the restarted first session.
By adopting the method in the implementation scenario, after the communication between the access network node and the macro network element is interrupted, the access network node can communicate with the local network element through the restarted first session, so that the normal operation of the communication is ensured. In addition, because the first session between the access network node and the local network element is pre-established, the broadcast transmission delay caused by switching the user data to the IOPS network can be reduced when the local network element is enabled. Further, the method may further include:
and the access network node determines that the communication between the access network node and the macro network element is recovered to be normal, and sends a third message to the local network element, wherein the third message is used for indicating the local network element to suspend the first session.
Correspondingly, the macro network element receives a fourth message from the access network node, and the macro network element starts a second session according to the fourth message, wherein the second session is a session between the access network node and the macro network element.
Illustratively, in the process of communicating between the access network node and the local network element, the access network node further detects whether the communication between the access network node and the macro network element is recovered to be normal, and if it is determined that the communication between the access network node and the macro network element is recovered to be normal, that is, normal data communication can be performed between the access network node and the macro network element, the access network node sends a third message, such as an M2reset message, to the local network element.
After receiving the third message sent by the access network node, the local network element suspends the first session again according to the third message, for example, the local network element retains the context information of the first session, such as the identifier of the first session, the QoS of the first session, the identifier of the M2 logical connection, and the like, and at this time, the access network node will not process the data transmitted through the first session from the local network element. In addition, the access network node may also send a fourth message, such as an M2setup message or an M2start message, to the macro network element. After receiving the fourth message, the macro network element starts a second session between the access network node and the macro network element according to the fourth message, and specifically, the macro network element uses the context of the second session and sends data to the access network node through the second session. The access network node will thus communicate with the macro network element via the initiated second session.
After the access network node determines that the communication between the access network node and the macro network element is recovered to be normal, the local network element is instructed to suspend a first session between the local network element and the access network node, and the macro network element is instructed to start a second session between the macro network element and the access network node.
The following takes the first session as the first MBMS session, the second session as the second MBMS session, the local network element and the macro network element are both MCEs, and the local network element carries the indication information in the MBMS session start request message and sends the indication information to the access network node as an example, which further explains the scheme of the present application.
Fig. 3 is a flowchart illustrating another communication method according to an embodiment of the present application, which is described as follows.
Step 301, BM-SC sends a session start request (session start request) message to the MBMS-GW.
Wherein, BM-SC and MBMS-GW are both devices in the local network. A session start request (session start request) message includes a first MBMS session ID.
Wherein the first MBMS session ID may be used to identify the first MBMS session.
In addition, the session start request message further includes indication information, and the indication information may refer to the related description in the foregoing embodiment and is not described again.
Step 302, the MBMS GW receives the session start request message and will send the session start request message to the MME.
Wherein, the MME is a device in the local network.
Step 303, the MME sends a session start request message to the local network element MCE.
Step 304, the local network element MCE receives the session start request message and sends the session start request message to the access network node.
Step 305, the access network node receives the session start request message and sends a first message to the local network element according to the session start request message.
For example, the access network node may send the first message to the local network element according to the indication information in the session start request message, which may specifically refer to the relevant description in the foregoing embodiment.
The first message may refer to the relevant description in the above embodiments, and is not described in detail again.
Optionally, after receiving the indication information, the access network node determines not to process data transmitted from the local network element through the first MBMS session.
Step 306, the local network element suspends the first MBMS session according to the first message.
The first message comprises a first MBMS conversation ID, and the local network element suspends the first MBMS conversation according to the first MBMS conversation ID in the first message. The manner in which the local network element suspends the first MBMS session may refer to the related description in the foregoing embodiment, and is not described again.
Optionally, the method further comprises steps 407-414.
Step 307, the access network node determines that the communication between the access network node and the macro network element is interrupted.
Step 308, the access network node sends a second message to the local network element.
The second message may refer to the related description in the above embodiments. For example, it may be an M2setup message or an M2start message.
Step 309, the local network element starts the first MBMS session according to the second message.
Wherein, the second message contains the first MBMSID, and the local network element starts the first MBMS conversation according to the first MBMS conversation ID in the second message. The manner in which the local network element starts the first MBMS session may refer to the related description in the foregoing embodiment, and is not described again.
For example, after the local network element starts the first MBMS session, the access network node will process the data transmitted through the first MBMS session from the local network element, so as to ensure that normal communication can still be performed after the communication between the access network node and the macro network element is interrupted.
Step 310, the access network node determines that the communication between the access network node and the macro network element is recovered to be normal.
After determining that the communication between the access network node and the macro network element is recovered to normal, the access network node executes step 311 and step 313.
Step 311, the access network node sends a third message to the local network element.
The third message may refer to the related description in the above embodiments, and may be, for example, an M2reset message.
Step 312, the local network element suspends the first MBMS session according to the third message.
And the local network element suspends the first MBMS session according to the first MBMS session ID in the third message. The manner in which the local network element suspends the first MBMS session may refer to the related description in the foregoing embodiment, and is not described again.
Illustratively, after suspending the first MBMS session by the local network element, the access network node will determine not to process data transmitted over the first MBMS session from the local network element.
Step 313, the access network node sends a fourth message to the macro network element.
Wherein the fourth message is used to instruct the macro network element to start the second MBMS session.
Step 314, the macro network element starts the second MBMS session according to the fourth message.
Wherein the second MBMS session is a session between an access network node and a macro network element. The fourth message includes a second MBMS session ID, and the local network element starts a second MBMS session according to the second MBMS session ID in the fourth message. The manner in which the local network element starts the second MBMS session may refer to the related description in the foregoing embodiment, and is not described again.
Illustratively, after the macro network element initiates the second MBMS session, the access network node resumes processing data from the macro network element for transmission via the second MBMS session.
The implementation manner in each step may refer to the implementation manner in the embodiment shown in fig. 2, and is not described here again.
In the communication method provided by the embodiment of the present invention, the access network node receives indication information from the local network element, where the indication information is used to indicate an attribute of a first session between the access network node and the local network element, where the attribute includes pre-establishment and/or IOPS, and the access network node sends a first message to the local network element according to the indication information, where the first message is used to indicate the local network element to suspend the first session. By the method, the access network node only processes the data sent by the macro network element and does not process the data transmitted by the local network element through the first session, so that the normal communication can be ensured under the condition that the access network node has broadcast sessions with the macro network element and the local network element at the same time.
The foregoing describes a communication method provided in an embodiment of the present application, and an access network node and a local network element provided in the embodiment of the present application are described below.
Fig. 4 is a schematic structural diagram of a communication apparatus according to an embodiment of the present application, where the apparatus may be an access network node or a chip or a system on a chip located in the access network node, and may be configured to perform actions related to the access network node in the foregoing method embodiment, where the apparatus includes: a receiving unit 11 and a transmitting unit 12.
A receiving unit 11, configured to receive indication information from a local network element, where the indication information is used to indicate an attribute of a first session between an access network node and the local network element, and the attribute includes pre-establishment and/or IOPS;
a sending unit 12, configured to send a first message to the local network element according to the indication information, where the first message is used to indicate the local network element to suspend the first session.
In an embodiment of the present application, an access network node receives, from a local network element, indication information, where the indication information is used to indicate an attribute of a first session between the access network node and the local network element, where the attribute includes pre-establishment and/or IOPS, and the access network node sends, according to the indication information, a first message to the local network element, where the first message is used to indicate the local network element to suspend the first session. Therefore, the access network node only processes the data sent by the macro network element and does not process the data transmitted by the local network element through the first session, so that the normal operation of communication can be ensured under the condition that the access network node has a broadcast session with the macro network element and the local network element at the same time.
Optionally, as an embodiment, the first session is an MBMS session.
Fig. 5 is a schematic structural diagram of another communication device provided in an embodiment of the present application, and referring to fig. 5, the device further includes: a processing unit 13, wherein:
and a processing unit 13, configured to not process the data transmitted through the first session from the local network element according to the indication information.
Optionally, as an embodiment, the processing unit 13 is further configured to determine that communication between the access network node and a macro network element is interrupted;
the sending unit 12 is further configured to send a second message to the local network element, where the second message is used to instruct the local network element to start the first session.
Optionally, as an embodiment, the processing unit 13 is further configured to determine that communication between the access network node and the macro network element returns to normal;
the sending unit 12 is further configured to send a third message to the local network element, where the third message is used to instruct the local network element to suspend the first session;
the sending unit 12 is further configured to send a fourth message to the macro network element, where the fourth message is used to instruct the macro network element to start a second session, and the second session is a session between the access network node and the macro network element.
Optionally, as an embodiment, the indication information is carried in an MBMS session start request message, MBMS scheduling information, an M2setup response message, an M2configuration update response message, an M2configuration update request message, or an MBMS session update request message.
The communication device provided in the embodiment of the present application may implement the corresponding method embodiment, and the implementation principle and the technical effect are similar, which are not described herein again.
It should be noted that the division of each unit of the above apparatus is only a logical division, and the actual implementation may be wholly or partially integrated into one physical entity, or may be physically separated. And these units can be implemented entirely in software, invoked by a processing element; or may be implemented entirely in hardware; and part of the units can be realized in the form of calling by a processing element through software, and part of the units can be realized in the form of hardware. For example, the sending unit may be a processing element separately set up, or may be implemented by being integrated in a chip of the apparatus, or may be stored in a memory of the apparatus in the form of a program, and the function of the sending unit may be called and executed by a processing element of the apparatus. The other units are implemented similarly. In addition, all or part of the units can be integrated together or can be independently realized. The processing element described herein may be an integrated circuit having signal processing capabilities. In implementation, the steps of the method or the units above may be implemented by hardware integrated logic circuits in a processor element or instructions in software. Further, the above transmission unit is a unit that controls transmission, and information can be transmitted through a transmission device of the device, such as an antenna and a radio frequency device.
The above units may be one or more integrated circuits configured to implement the above methods, for example: one or more Application Specific Integrated Circuits (ASICs), or one or more microprocessors (DSPs), or one or more Field Programmable Gate Arrays (FPGAs), among others. For another example, when the above units are implemented in the form of a processing element scheduler, the processing element may be a general-purpose processor, such as a Central Processing Unit (CPU) or other processor capable of calling programs. As another example, these units may be integrated together and implemented in the form of a system-on-a-chip (SOC).
Fig. 6 is a schematic structural diagram of another communication apparatus provided in this embodiment, where the apparatus may be a local network element or a chip or a system on a chip located in the local network element, and may be configured to perform actions related to the local network element in the foregoing method embodiment, where the apparatus includes: a sending unit 21, a receiving unit 22 and a processing unit 23, wherein:
a sending unit 21, configured to send indication information to an access network node, where the indication information is used to indicate an attribute of a first session between the access network node and the local network element, and the attribute includes pre-establishment and/or IOPS;
a receiving unit 22, configured to receive a first message from the access network node;
a processing unit 23, configured to suspend the first session according to the first message.
In an embodiment of the present application, an access network node receives, from a local network element, indication information, where the indication information is used to indicate an attribute of a first session between the access network node and the local network element, where the attribute includes pre-established and/or IOPS, and the access network node sends, according to the indication information, a first message to the local network element, where the first message is used to indicate that the local network element suspends the first session. Therefore, the access network node only processes the data sent by the macro network element and does not process the data sent by the local network element, so that the normal communication can be ensured under the condition that the access network node has broadcast sessions with the macro network element and the local network element at the same time.
Optionally, as an embodiment, the first session is an MBMS session.
Optionally, as an embodiment, the receiving unit 22 is further configured to receive a second message from the access network node;
the processing unit 23 is further configured to start the first session according to the second message.
Optionally, as an embodiment, the receiving unit 22 is further configured to receive a third message from the access network node;
the processing unit 23 is further configured to suspend the first session according to the third message.
Optionally, as an embodiment, the receiving unit 22 is further configured to receive the indication information from a server;
the sending unit 21 is further configured to send the indication information to the access network node.
Optionally, as an embodiment, the indication information is carried in an MBMS session start request message, MBMS scheduling information, an M2setup response message, an M2configuration update response message, an M2configuration update request message, or an MBMS session update request message.
It should be noted that the division of each unit of the above apparatus is only a logical division, and the actual implementation may be wholly or partially integrated into one physical entity, or may be physically separated. And these units can be implemented entirely in software, invoked by a processing element; or may be implemented entirely in hardware; and part of the units can be realized in the form of calling by a processing element through software, and part of the units can be realized in the form of hardware. For example, the sending unit may be a processing element separately set up, or may be implemented by being integrated in a chip of the apparatus, or may be stored in a memory of the apparatus in the form of a program, and the function of the sending unit may be called and executed by a processing element of the apparatus. The other units are implemented similarly. In addition, all or part of the units can be integrated together or can be independently realized. The processing element described herein may be an integrated circuit having signal processing capabilities. In implementation, the steps of the method or the units above may be implemented by hardware integrated logic circuits in a processor element or instructions in software. Further, the above transmission unit is a unit that controls transmission, and information can be transmitted through a transmission device of the device, such as an antenna and a radio frequency device.
The above units may be one or more integrated circuits configured to implement the above methods, for example: one or more Application Specific Integrated Circuits (ASICs), or one or more microprocessors (DSPs), or one or more Field Programmable Gate Arrays (FPGAs), among others. For another example, when the above units are implemented in the form of a processing element scheduler, the processing element may be a general-purpose processor, such as a Central Processing Unit (CPU) or other processor capable of calling programs. As another example, these units may be integrated together and implemented in the form of a system-on-a-chip (SOC).
Fig. 7 is a schematic structural diagram of an access network node according to an embodiment of the present application. As shown in fig. 7, the access network node comprises: antenna 110, rf device 120, and baseband device 130. The antenna 110 is connected to the rf device 120. In the uplink direction, the rf device 120 receives information transmitted by the terminal through the antenna 110, and transmits the information transmitted by the terminal to the baseband device 130 for processing. In the downlink direction, the baseband device 130 processes the information of the terminal and sends the information to the rf device 120, and the rf device 120 processes the information of the terminal and sends the processed information to the terminal through the antenna 110.
In one implementation, the above modules are implemented in the form of a processing element scheduler, for example, the baseband device 130 includes a processing element 131 and a storage element 132, and the processing element 131 calls a program stored in the storage element 132 to execute the method in the above method embodiment. The baseband device 130 may further include an interface 133 for exchanging information with the rf device 120, such as a Common Public Radio Interface (CPRI).
In another implementation, the above modules may be one or more processing elements configured to implement the above method, the processing elements being disposed on the baseband apparatus 130, where the processing elements may be integrated circuits, such as: one or more ASICs, or one or more DSPs, or one or more FPGAs, etc. These integrated circuits may be integrated together to form a chip.
For example, the above modules may be integrated together and implemented in the form of a system-on-a-chip (SOC), for example, the baseband device 130 includes an SOC chip for implementing the above method. The chip can integrate the processing element 131 and the storage element 132, and the processing element 131 calls the stored program of the storage element 132 to realize the above method or the functions of the above units; or, at least one integrated circuit may be integrated in the chip, for implementing the above method or the functions of the above units; alternatively, the above implementation modes may be combined, the functions of the partial units are implemented in the form of a processing element calling program, and the functions of the partial units are implemented in the form of an integrated circuit.
In any case, the above access network node comprises at least one processing element, a memory element and a communication interface, wherein the at least one processing element is adapted to perform the method provided by the above method embodiments. The processing element may: i.e. the way the program stored by the storage element is executed, performs part or all of the steps in the above method embodiments; it is also possible to: that is, some or all of the steps in the above method embodiments are performed by integrated logic circuits of hardware in a processor element in combination with instructions; of course, the method provided by the above method embodiment can also be executed in combination with the first manner and the second manner.
The processing element may be a general-purpose processor, such as a Central Processing Unit (CPU), or may be one or more integrated circuits configured to implement the above methods, such as: one or more Application Specific Integrated Circuits (ASICs), or one or more microprocessors (DSPs), or one or more Field Programmable Gate Arrays (FPGAs), among others.
The storage element may be a memory or a combination of a plurality of storage elements.
Fig. 8 is a schematic structural diagram of a local network element according to an embodiment of the present application, and as shown in fig. 8, the local network element includes: a memory 31, a processor 32, interface circuitry 33, and a bus 34, wherein,
the memory 31, processor 32 and interface circuit 33 are connected by a bus 34 and communicate with each other. The processor 32 receives or transmits information, such as instructional information, data, and the like, through the interface circuit 33.
Wherein, a set of program codes is stored in the memory 31, and the processor 32 calls the program codes stored in the memory 31 to execute the steps in the corresponding method embodiments.
Embodiments of the present application further provide a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, can implement a process related to an access network node in a communication method provided in the foregoing method embodiments.
Embodiments of the present application further provide a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, can implement a process related to a local network element in a communication method provided in the foregoing method embodiments.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the embodiments of the present application.
Moreover, various aspects or features of embodiments of the application may be implemented as a method, apparatus, or article of manufacture using standard programming and/or engineering techniques. The term "article of manufacture" as used herein is intended to encompass a computer program accessible from any computer-readable device, carrier, or media. For example, computer-readable media can include but are not limited to magnetic storage devices (e.g., hard disk, floppy disk, magnetic strips, etc.), optical disks (e.g., Compact Disk (CD), Digital Versatile Disk (DVD), etc.), smart cards, and flash memory devices (e.g., erasable programmable read-only memory (EPROM), card, stick, or key drive, etc.). In addition, various storage media described herein can represent one or more devices and/or other machine-readable media for storing information. The term "machine-readable medium" can include, without being limited to, wireless channels and various other media capable of storing, containing, and/or carrying instruction(s) and/or data.
In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, cause the processes or functions described in accordance with the embodiments of the application to occur, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, from one website site, computer, server, or data center to another website site, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that incorporates one or more of the available media. The usable medium may be a magnetic medium (e.g., floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., Solid State Disk (SSD)), among others.
It should be understood that, in various embodiments of the present application, the sequence numbers of the above-mentioned processes do not imply an order of execution, and the order of execution of the processes should be determined by their functions and inherent logic, and should not limit the implementation processes of the embodiments of the present application.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solutions of the embodiments of the present application, which essentially or partly contribute to the prior art, may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or an access network device) to execute all or part of the steps of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.

Claims (28)

1. A method of communication, comprising:
an access network node receiving indication information from a local network element, the indication information being used to indicate an attribute of a first session between the access network node and the local network element, the attribute comprising a pre-established and/or public safety isolated E-UTRAN mode IOPS;
and the access network node sends a first message to the local network element according to the indication information, wherein the first message is used for indicating the local network element to suspend the first session.
2. The method of claim 1, wherein the first session is a multimedia broadcast/multicast service (MBMS) session.
3. The method according to claim 1 or 2, characterized in that the method further comprises:
and the access network node does not process the data transmitted by the local network element through the first session according to the indication information.
4. The method according to claim 1 or 2, characterized in that the method further comprises:
the access network node determines that communication between the access network node and a macro network element is interrupted;
and the access network node sends a second message to the local network element, wherein the second message is used for indicating the local network element to start the first session.
5. The method of claim 4, further comprising:
the access network node determines that the communication between the access network node and the macro network element is recovered to be normal;
the access network node sends a third message to the local network element, where the third message is used to instruct the local network element to suspend the first session;
and the access network node sends a fourth message to the macro network element, where the fourth message is used to instruct the macro network element to start a second session, and the second session is a session between the access network node and the macro network element.
6. The method of claim 1, wherein the indication information is carried in an MBMS session start request message, MBMS scheduling information, an M2setup response message, an M2configuration update response message, an M2configuration update request message, or an MBMS session update request message.
7. A method of communication, comprising:
a local network element sends indication information to an access network node, wherein the indication information is used for indicating the attribute of a first session between the access network node and the local network element, and the attribute comprises pre-established and/or public safety isolated E-UTRAN mode IOPS;
the local network element receiving a first message from the access network node;
and the local network element suspends the first session according to the first message.
8. The method of claim 7, wherein the first session is a multimedia broadcast/multicast service (MBMS) session.
9. The method according to claim 7 or 8, characterized in that the method further comprises:
the local network element receiving a second message from the access network node;
and the local network element starts the first session according to the second message.
10. The method of claim 9, further comprising:
receiving, by the local network element, a third message from the access network node;
and the local network element suspends the first session according to the third message.
11. The method of claim 7, wherein the sending, by the local network element, the indication information to the access network node comprises:
the local network element receives the indication information from a server;
and the local network element sends the indication information to the access network node.
12. The method of claim 7, wherein the indication information is carried in an MBMS session start request message, MBMS scheduling information, an M2setup response message, an M2configuration update response message, an M2configuration update request message, or an MBMS session update request message.
13. A communications apparatus, comprising:
a receiving unit, configured to receive indication information from a local network element, where the indication information is used to indicate an attribute of a first session between an access network node and the local network element, and the attribute includes a pre-established and/or public safety isolated E-UTRAN mode IOPS;
a sending unit, configured to send a first message to the local network element according to the indication information, where the first message is used to indicate the local network element to suspend the first session.
14. The apparatus of claim 13, wherein the first session is a multimedia broadcast/multicast service (MBMS) session.
15. The apparatus of claim 13 or 14, further comprising:
and the processing unit is used for not processing the data transmitted from the local network element through the first session according to the indication information.
16. The apparatus of claim 13 or 14,
the processing unit is further used for determining communication interruption between the access network node and the macro network element;
the sending unit is further configured to send a second message to the local network element, where the second message is used to instruct the local network element to start the first session.
17. The apparatus of claim 16,
the processing unit is further configured to determine that communication between the access network node and the macro network element is recovered to be normal;
the sending unit is further configured to send a third message to the local network element, where the third message is used to instruct the local network element to suspend the first session;
the sending unit is further configured to send a fourth message to the macro network element, where the fourth message is used to instruct the macro network element to start a second session, and the second session is a session between the access network node and the macro network element.
18. The apparatus of claim 13, wherein the indication information is carried in an MBMS session start request message, MBMS scheduling information, an M2setup response message, an M2configuration update response message, an M2configuration update request message, or an MBMS session update request message.
19. A communications apparatus, comprising:
a sending unit, configured to send indication information to an access network node, where the indication information is used to indicate an attribute of a first session between the access network node and a local network element, and the attribute includes a pre-established and/or public safety isolated E-UTRAN mode IOPS;
a receiving unit, configured to receive a first message from the access network node;
and the processing unit is used for suspending the first session according to the first message.
20. The apparatus of claim 19, wherein the first session is a multimedia broadcast/multicast service (MBMS) session.
21. The apparatus of claim 19 or 20,
the receiving unit is further configured to receive a second message from the access network node;
the processing unit is further configured to start the first session according to the second message.
22. The apparatus of claim 21,
the receiving unit is further configured to receive a third message from the access network node;
the processing unit is further configured to suspend the first session according to the third message.
23. The apparatus of claim 19,
the receiving unit is further configured to receive the indication information from a server;
the sending unit is further configured to send the indication information to the access network node.
24. The apparatus of claim 19, wherein the indication information is carried in an MBMS session start request message, MBMS scheduling information, an M2setup response message, an M2configuration update response message, an M2configuration update request message, or an MBMS session update request message.
25. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the communication method according to any one of claims 1 to 6.
26. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the communication method according to any one of claims 7 to 12.
27. A communication apparatus comprising a memory, a processor and a program stored on the memory and executable on the processor, wherein the processor implements the communication method according to any one of claims 1 to 6 when executing the program.
28. A communication apparatus comprising a memory, a processor and a program stored on the memory and executable on the processor, wherein the processor implements the communication method according to any one of claims 7 to 12 when executing the program.
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