CN110446274B - Tunnel establishment method and device - Google Patents

Tunnel establishment method and device Download PDF

Info

Publication number
CN110446274B
CN110446274B CN201910622740.1A CN201910622740A CN110446274B CN 110446274 B CN110446274 B CN 110446274B CN 201910622740 A CN201910622740 A CN 201910622740A CN 110446274 B CN110446274 B CN 110446274B
Authority
CN
China
Prior art keywords
tunnel
node
access network
established
core network
Prior art date
Legal status (The legal status 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 status listed.)
Active
Application number
CN201910622740.1A
Other languages
Chinese (zh)
Other versions
CN110446274A (en
Inventor
张涛
蔺波
毕皓
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huawei Technologies Co Ltd
Original Assignee
Huawei Technologies Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Priority to CN201910622740.1A priority Critical patent/CN110446274B/en
Priority claimed from CN201480000407.2A external-priority patent/CN104904308B/en
Publication of CN110446274A publication Critical patent/CN110446274A/en
Application granted granted Critical
Publication of CN110446274B publication Critical patent/CN110446274B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/46—Interconnection of networks
    • H04L12/4633—Interconnection of networks using encapsulation techniques, e.g. tunneling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/22—Alternate routing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/10—Flow control; Congestion control
    • H04L47/12—Avoiding congestion; Recovering from congestion
    • H04L47/122—Avoiding congestion; Recovering from congestion by diverting traffic away from congested entities
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/04—Arrangements for maintaining operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/0252—Traffic management, e.g. flow control or congestion control per individual bearer or channel
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/12—Setup of transport tunnels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/10—Flow control; Congestion control
    • H04L47/12—Avoiding congestion; Recovering from congestion
    • H04L47/125—Avoiding congestion; Recovering from congestion by balancing the load, e.g. traffic engineering
    • 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
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/22—Manipulation of transport tunnels

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

The invention relates to the technical field of communication and discloses a method and a device for establishing a tunnel, which can be the same or different for each service of a terminal even though an execution main body executing the scheme is unchanged, for example, a first tunnel and a second tunnel can be established for one service of the terminal, and a third tunnel can be established for the next service of the terminal, thus reducing congestion of a backbone network between an auxiliary access network node and a main access network node, reducing transmission delay of user data packets, reducing loss of user data packets, or avoiding the situation that the tunnels established between the auxiliary access network node and a user plane node of a core network are direct-connected tunnels when the path switching signaling needed to be transmitted and received by the control plane node of the core network is excessive, and avoiding paralysis of the core network caused by the excessive path switching signaling needed to be transmitted and received by the control plane node of the core network.

Description

Tunnel establishment method and device
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method and an apparatus for tunnel establishment.
Background
With the development of communication technology, mobile communication networks and broadband wireless access networks are continuously evolving towards respective development directions, a wide variety of wireless networks are sequentially presented, and different wireless networks have different characteristics and service providing capabilities.
The next generation wireless network is a heterogeneous network based on a convergence of a plurality of wireless access technologies, including broadband wireless access, a cellular mobile communication system, a digital television broadcasting network, and a satellite communication system. The heterogeneous network enables interconnection and interworking between different systems so as to ensure that users can fully utilize the heterogeneous wireless access technologies and further meet various requirements of the users. For example, a HetNet (Heterogeneous Network ) formed by mixed deployment of a secondary access network Node (for example, SCN (Small Cell Node), and a primary access network Node (for example, eNB (EUTRAN Node B, common base station)), wherein the secondary access network Node covers a Small area of a Cell, the primary access network Node covers a large area of a Cell, and the HetNet has the characteristics of larger throughput, stronger capability of adapting to deployment scenarios, and the like, compared with the HetNet (Homogeneous Network ) formed by the primary access network Node only, and can meet various requirements of users.
In HetNet, before the terminal interacts with the core network, there are physical connections between the secondary access network node, the primary access network node, and some core network nodes, and tunnels for transmitting user data need to be established for the terminal over these physical connections. Among them, there are many kinds of core network nodes: a core network control plane node, e.g., MME (Mobility Management Entity ); core network user plane nodes, such as SGW (Serving GateWay). The core network control plane node and the core network user plane node may also be the same node, e.g. SGSN (Serving GPRS Support Node, serving GPRS support node, GPRS (General Packet Radio Service, general packet radio service)). After the tunnel is established, the terminal can interact with the core network nodes in the HetNet, and the core network nodes in the HetNet can provide services for the terminal.
In the prior art, there are mainly two tunnel establishment modes between the auxiliary access network node and the core network user plane node, as shown in fig. 1A (the tunnel between the auxiliary access network node and the core network user plane node is switched through the main access network node), and 1B (the tunnel between the auxiliary access network node and the core network user plane node is not switched through the main access network node, but is a directly connected tunnel), because the tunnel establishment mode in the main access network node is fixed, the switching of different tunnel establishment modes cannot be performed, only one tunnel establishment mode in fig. 1A or fig. 1B can be selected, and the switching between the two tunnel establishment modes cannot be performed. However, if the primary access network node always selects the tunnel establishment mode shown in fig. 1A, since all user data between the secondary access network node and the user plane node of the core network passes through the primary access network node, a relatively large pressure is caused on the backbone network between the secondary access network node and the primary access network node, congestion is easy to occur, so that the transmission delay of the user data packet is increased, the probability of discarding the user data packet is increased, and the user experience is reduced; if the primary access network node always selects the tunnel establishment mode shown in fig. 1B, when the terminal moves between different secondary access network nodes, a core network control plane node is required to send and receive path switching signaling, and the path switching instruction is used for processing path switching caused by the movement of the terminal, and when the path switching signaling required to be sent and received by the core network control plane node is excessive, paralysis of the core network is caused, so that the whole network cannot normally operate.
Disclosure of Invention
The embodiment of the invention provides a tunnel establishment method and device, which are used for solving the problems of larger transmission delay of user data packets, higher possibility of user data packet loss or paralysis of a core network in the prior art.
In a first aspect, a method for establishing a tunnel is provided, including:
receiving a first tunnel establishment request sent by a core network control plane node, wherein the first tunnel establishment request is sent by the core network control plane node after receiving a second tunnel establishment request sent by a core network user plane node;
acquiring type information of a tunnel to be established;
and establishing a tunnel between the user plane node of the core network and the auxiliary access network node based on the type information of the tunnel to be established according to the first tunnel establishment request.
With reference to the first aspect, in a first possible implementation manner, obtaining type information of a tunnel to be established includes:
receiving a tunnel type indication message sent by an Operation Administration and Maintenance (OAM) system, or the core network user plane node or the core network control plane node, and
analyzing the type information of the tunnel to be established from the tunnel type indication message;
The type information of the tunnel to be established is the OAM, or the core network user plane node, or the core network control plane node, respectively, which is determined according to network load information.
With reference to the first aspect, in a second possible implementation manner, obtaining type information of a tunnel to be established includes:
analyzing type information of a tunnel to be established from the first tunnel establishment request;
the tunnel type information acquired from the first tunnel establishment request is determined by the core network control plane node or the core network user plane node according to network load information.
With reference to the first or second possible implementation manner of the first aspect, in a third possible implementation manner, if type information of a tunnel to be established is obtained according to the tunnel type indication message, before the tunnel type indication message is received, a capability indication message carrying supported tunnel type information is sent to the OAM system, or the core network user plane node, or the core network control plane node;
if the type information of the tunnel to be established is acquired according to the first tunnel establishment request, before the first tunnel establishment request is received, a capability indication message carrying the supported tunnel type information is sent to the core network user plane node or the core network control plane node.
With reference to the first aspect, in a fourth possible implementation manner, acquiring type information of a tunnel to be established includes:
acquiring network load information, and
and determining the type information of the tunnel to be established according to the network load information.
With reference to the first to fourth possible implementation manners of the first aspect, in a fifth possible implementation manner, the type information of the tunnel to be established is a tunnel that allows the secondary access network node to terminate the tunnel from the core network user plane node, or is a tunnel that prohibits the secondary access network node from terminating the tunnel from the core network user plane node.
With reference to the first to fifth possible implementation manners of the first aspect, in a sixth possible implementation manner, the network load information includes:
the data load of the tunnel established between the auxiliary access network node and the main access network node; and/or
And the path switching signaling load of the core network control plane node.
With reference to the first aspect, in a seventh possible implementation manner, the establishing a tunnel between the user plane node of the core network and the secondary access network node includes:
establishing a first tunnel between the user plane node of the core network and the main access network node, and establishing a second tunnel between the auxiliary access network node and the main access network node; or alternatively
And establishing a third tunnel between the user plane node of the core network and the auxiliary access network node.
With reference to the seventh possible implementation manner of the first aspect, in an eighth possible implementation manner, establishing a first tunnel between the core network user plane node and the primary access network node includes:
acquiring first tunnel information corresponding to tunnel endpoints distributed by the core network user plane node from the received first tunnel establishment request, and
and sending second tunnel information corresponding to the tunnel endpoint distributed by the main access network node to the core network user plane node.
With reference to the seventh possible implementation manner of the first aspect, in a ninth possible implementation manner, establishing a second tunnel between the secondary access network node and the primary access network node includes:
transmitting third tunnel information corresponding to the tunnel endpoint distributed by the main access network node to the auxiliary access network node, and
and receiving fourth tunnel information corresponding to the tunnel endpoint distributed by the auxiliary access network node.
With reference to the seventh possible implementation manner of the first aspect, in a tenth possible implementation manner, establishing a third tunnel between the user plane node of the core network and the secondary access network node includes:
Acquiring first tunnel information corresponding to a tunnel endpoint distributed by the core network user plane node from the received first tunnel establishment request, and sending the first tunnel information to the auxiliary access network node;
and receiving fourth tunnel information corresponding to the tunnel endpoint distributed by the auxiliary access network node, and sending the fourth tunnel information to the core network user plane node.
In a second aspect, an apparatus for tunnel establishment is provided, including:
a receiving tunnel establishment request module, configured to receive a first tunnel establishment request sent by a core network control plane node, where the first tunnel establishment request is sent by the core network control plane node after receiving a second tunnel establishment request sent by a core network user plane node;
the tunnel type acquisition module is used for acquiring type information of a tunnel to be established;
the tunnel establishment module is used for establishing a tunnel between the user plane node of the core network and the auxiliary access network node based on the type information of the tunnel to be established according to the first tunnel establishment request.
With reference to the second aspect, in a first possible implementation manner, the tunnel type obtaining module is specifically configured to:
Receiving a tunnel type indication message sent by an Operation Administration and Maintenance (OAM) system or the core network user plane node or the core network control plane node, and analyzing type information of a tunnel to be established from the tunnel type indication message; the type information of the tunnel to be established is the OAM, or the core network user plane node, or the core network control plane node, respectively, which is determined according to network load information.
With reference to the second aspect, in a second possible implementation manner, the tunnel type obtaining module is specifically configured to:
analyzing type information of a tunnel to be established from the first tunnel establishment request;
the tunnel type information acquired from the first tunnel establishment request is determined by the core network control plane node or the core network user plane node according to network load information.
With reference to the first or second possible implementation manner of the second aspect, in a third possible implementation manner, the acquiring tunnel type module is specifically configured to:
if the type information of the tunnel to be established is obtained according to the tunnel type indication message, before receiving the tunnel type indication message, sending a capability indication message carrying the supported tunnel type information to the OAM system, or the core network user plane node, or the core network control plane node;
If the type information of the tunnel to be established is acquired according to the first tunnel establishment request, before the first tunnel establishment request is received, a capability indication message carrying the supported tunnel type information is sent to the core network user plane node or the core network control plane node.
With reference to the second aspect, in a fourth possible implementation manner, the tunnel type obtaining module is specifically configured to:
and acquiring network load information, and determining the type information of the tunnel to be established according to the network load information.
With reference to the first to fourth possible implementation manners of the second aspect, in a fifth possible implementation manner, the type information of the tunnel to be established acquired by the acquiring tunnel type module is a tunnel that allows the secondary access network node to terminate from the core network user plane node, or a tunnel that prohibits the secondary access network node from terminating from the core network user plane node.
With reference to the first to fifth possible implementation manners of the second aspect, in a sixth possible implementation manner, determining network load information of type information of a tunnel to be established acquired by the acquiring tunnel type module includes:
the data load of the tunnel established between the auxiliary access network node and the main access network node; and/or
And the path switching signaling load of the core network control plane node.
With reference to the second aspect, in a seventh possible implementation manner, the tunnel establishment module is specifically configured to:
establishing a first tunnel between the user plane node of the core network and the main access network node, and establishing a second tunnel between the auxiliary access network node and the main access network node; or, a third tunnel between the core network user plane node and the auxiliary access network node is established.
With reference to the seventh possible implementation manner of the second aspect, in an eighth possible implementation manner, the tunnel establishment module is specifically configured to:
and acquiring first tunnel information corresponding to the tunnel endpoint distributed by the core network user plane node from the received first tunnel establishment request, and sending second tunnel information corresponding to the tunnel endpoint distributed by the main access network node to the core network user plane node.
With reference to the seventh possible implementation manner of the second aspect, in a ninth possible implementation manner, the tunnel establishment module is specifically configured to:
and sending third tunnel information corresponding to the tunnel endpoint distributed by the main access network node to the auxiliary access network node, and receiving fourth tunnel information corresponding to the tunnel endpoint distributed by the auxiliary access network node.
With reference to the seventh possible implementation manner of the second aspect, in a tenth possible implementation manner, the tunnel establishment module is specifically configured to:
acquiring first tunnel information corresponding to a tunnel endpoint distributed by the core network user plane node from the received first tunnel establishment request, and sending the first tunnel information to the auxiliary access network node; and receiving fourth tunnel information corresponding to the tunnel endpoint distributed by the auxiliary access network node, and sending the fourth tunnel information to the core network user plane node.
In the embodiment of the invention, as the main access network node can support at least two tunnel establishment modes, the tunnel between the user plane node of the core network and the auxiliary access network node can be established according to the type information of the tunnel to be established, that is, the tunnel between the auxiliary access network node and the user plane node of the core network can be switched in different tunnel establishment modes, the condition that when the backbone network between the auxiliary access network node and the main access network node is congested, the tunnel between the auxiliary access network node and the user plane node of the core network continues to be switched through the main access network node is avoided, thus, the congestion of the backbone network between the auxiliary access network node and the main access network node is reduced, the transmission delay of user data packets is reduced, and the loss of user data packets is reduced, or the condition that when the control plane node of the core network needs to receive and send path switching signaling is excessive, the tunnel between the auxiliary access network node and the user plane node of the core network is a direct-connected tunnel is avoided, and the paralysis of the core network caused by the excessive path switching signaling needed to be received and sent by the control plane node of the core network is avoided.
Drawings
Fig. 1A is a schematic diagram of a first tunnel establishment method between a secondary access network node and a user plane node of a core network in the prior art;
fig. 1B is a schematic diagram of a second tunnel establishment method between a secondary access network node and a user plane node of a core network in the prior art;
FIG. 2 is a detailed flow chart of tunnel establishment in an embodiment of the invention;
FIG. 3A is a first flow chart of tunnel establishment in an embodiment of the invention;
FIG. 3B is a second flow chart of tunnel establishment in an embodiment of the invention;
FIG. 3C is a third flow chart of tunnel establishment in an embodiment of the invention;
FIG. 3D is a fourth flow chart of tunnel establishment in an embodiment of the invention;
FIG. 3E is a fifth flow chart of tunnel establishment in an embodiment of the invention;
fig. 4A is a sixth flowchart of tunnel establishment in an embodiment of the present invention.
FIG. 4B is a seventh flowchart of tunnel establishment in accordance with an embodiment of the present invention;
FIG. 4C is an eighth flowchart of tunnel establishment in accordance with an embodiment of the present invention;
FIG. 4D is a ninth flowchart of tunnel establishment in accordance with an embodiment of the present invention;
FIG. 4E is a tenth flow chart of tunnel establishment in an embodiment of the invention;
FIG. 5A is an eleventh flowchart of tunnel establishment in accordance with an embodiment of the present invention;
FIG. 5B is a twelfth flowchart of tunnel establishment in an embodiment of the invention
FIG. 6 is a schematic diagram of a tunnel establishment apparatus according to an embodiment of the present invention;
FIG. 7 is another detailed flow chart of tunnel establishment in an embodiment of the invention;
fig. 8 is another schematic diagram of a tunnel establishment apparatus according to an embodiment of the present invention.
Detailed Description
In order to solve the problems of larger transmission delay of user data packets and higher possibility of user data packet loss or paralysis of a core network in the prior art, in the embodiment of the invention, the tunnel between the user plane node of the core network and the user plane node of the auxiliary network is established according to the type information of the tunnel to be established, and the tunnel is switched in different tunnel establishment modes, so that when the backbone network between the auxiliary access network node and the main access network node is congested, the tunnel between the auxiliary access network node and the user plane node of the core network continues to be switched through the main access network node, thereby reducing the congestion of the backbone network between the auxiliary access network node and the main access network node, reducing the transmission delay of the user data packets and reducing the loss of the user data packets, or avoiding that when the path switching signaling needed to be received by the control plane node of the core network is excessive, the tunnel between the auxiliary access network node and the user plane node of the core network is a direct-connected tunnel, and thus the paralysis of the core network caused by the excessive path switching signaling needed to be received by the control plane node of the core network is avoided.
The preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
Referring to fig. 2, in the embodiment of the present invention, the detailed flow of tunnel establishment is as follows:
embodiment one:
step 200: receiving a first tunnel establishment request sent by a core network control plane node, wherein the first tunnel establishment request is sent by the core network control plane node after receiving a second tunnel establishment request sent by a core network user plane node;
step 210: acquiring type information of a tunnel to be established;
step 220: and establishing a tunnel between the user plane node of the core network and the auxiliary access network node based on the type information of the tunnel to be established according to the first tunnel establishment request.
In the embodiment of the present invention, the content carried in the first tunnel establishment request and the second tunnel establishment request may be the same or different.
In the embodiment of the present invention, in step 200, the conditions for triggering the core network control plane node to send the first tunnel establishment request are various, for example, when the core network user plane node determines that the terminal needs to perform service interaction with the core network, the core network user plane node sends the second tunnel establishment request to the core network control plane node, and then, after receiving the second tunnel establishment request, the core network control plane node sends the first tunnel establishment request, and other modes are not described in detail herein.
In the embodiment of the invention, various modes for acquiring the type information of the tunnel to be established are as follows:
for example, the tunnel type indication message is received first, and then the type information of the tunnel to be established is parsed from the tunnel type indication message, where the tunnel type indication message may be sent by an OAM (Operation Administration and Maintenance ) system, may be sent by a core network user plane node, or may be sent by a core network control plane node.
When the OAM, the user plane node of the core network or the control plane node of the core network sends the tunnel type indication message, the type information of the tunnel to be established can be determined according to the network load information, then the determined type information of the tunnel to be established is added into the tunnel type indication message, and then the tunnel is sent.
In this way, the type information of the tunnel to be established is parsed from the tunnel type indication message, the receiving of the tunnel type indication message may be before or after the receiving of the first tunnel establishment request sent by the core network control plane node.
For another example, the type information of the tunnel to be established is parsed from the first tunnel establishment request sent by the core network control plane node, wherein the tunnel type information is determined by the core network user plane node or the core network control plane node according to the network load information.
In this manner, since the core network user plane node transmits the first tunnel establishment request to the core network control plane node after transmitting the second tunnel establishment request to the core network control plane node, the type information of the tunnel to be established may be added to the second tunnel establishment request when the core network user plane node transmits the second tunnel establishment request to the core network control plane node, and the core network control plane node may add the type information of the tunnel to be established to the first tunnel establishment request after receiving the second tunnel establishment request; the second tunnel establishment request may have no type information of the tunnel to be established, and the core network control plane node adds the type information of the tunnel to be established to the first tunnel establishment request when sending the first tunnel establishment request.
Also, for example, network load information is acquired, and type information of a tunnel to be established is determined according to the network load information.
In the above-described modes, the network load information may include, regardless of which node determines the network load information: the data load of the tunnel established between the auxiliary access network node and the main access network node, and the path switching signaling load of the core network control plane node are one or any combination.
In the above process, when the tunnel is not established for the first time, the tunnel type information is determined by the determined main body according to the network load information, and when the tunnel is established for the first time, the determined main body may determine the tunnel type information according to the pre-configuration of the operator since the network load information is not generated yet.
In the embodiment of the present invention, the execution main body of steps 200 to 220 also sends a capability indication message carrying supported tunnel type information to the determination main body of the type information of the tunnel to be established, and then the main body of the type information of the tunnel to be established can determine the type information of the tunnel to be established according to the supported tunnel type information and the pre-configuration of the operator.
For example, if the type information of the tunnel to be established is obtained from the tunnel type indication message, before receiving the tunnel type indication message, the capability indication message carrying the supported tunnel type information is sent to the OAM system, or the core network user plane node, or the core network control plane node;
if the type information of the tunnel to be established is acquired according to the first tunnel establishment request, before the first tunnel establishment request is received, a capability indication message carrying the supported tunnel type information is sent to the user plane node of the core network or the control plane node of the core network.
For example, the tunnel type indication message may be sent by OAM, and the execution bodies of steps 200-220 are described as the primary access network node. After the main access network node is started, the OAM sends a capability indication message carrying supported tunnel type information to the OAM, then the OAM sends the tunnel type information determined according to the pre-configuration of an operator to the main access network node, in the subsequent process, the OAM can determine the type information of the tunnel to be established according to the network load information, and the type information of the tunnel to be established is determined according to the network load information and is carried in the tunnel type indication message to be sent.
When the network load is acquired, detection may be actively performed, or the data load of the tunnel established between the secondary access network node and the primary access network node may be acquired, for example, the data load of the tunnel established between the secondary access network node and the primary access network node may be acquired, and after the data load (for example, user data traffic) of the tunnel established between the secondary access network node and the primary access network node reaches a first preset threshold value, the secondary access network node or the primary access network node actively reports the data load, or the data load of the tunnel established between the secondary access network node and the primary access network node may be periodically checked, so as to acquire the data load.
For example, the obtained path switching signaling load of the core network control plane node may be that, after the path switching signaling load of the core network control plane node reaches a first preset threshold, the core network control plane node actively reports the path switching signaling load, or periodically checks the path switching signaling load of the core network control plane node, so as to obtain the path switching signaling load.
For example, the network load acquired by the OAM may be reported to the OAM by the secondary access network node when the secondary access network node determines that the data load of the tunnel established between the secondary access network node and the primary access network node exceeds a first preset threshold.
In the embodiment of the present invention, the type information of the tunnel to be established may be various, for example, it may be that the tunnel from the user plane node of the core network is allowed to be terminated for the auxiliary access network node, or it may be that the tunnel from the user plane node of the core network is forbidden to be terminated for the auxiliary access network node.
In the embodiment of the invention, various manners of establishing a tunnel between the user plane node of the core network and the auxiliary access network node exist, for example, a first tunnel between the user plane node of the core network and the main access network node is established, and a second tunnel between the auxiliary access network node and the main access network node is established; for example, a third tunnel is established between the core network user plane node and the secondary access network node.
In the embodiment of the present invention, there are various ways of establishing the first tunnel between the user plane node of the core network and the main access network node, and optionally, the first tunnel information corresponding to the tunnel endpoint allocated by the user plane node of the core network is obtained from the received first tunnel establishment request, and the second tunnel information corresponding to the tunnel endpoint allocated by the main access network node is sent to the user plane node of the core network, where if the execution body of step 200-220 is the main access network node, the execution body of step 200-220 is not the main access network node, and if the execution body of step 200-220 is not the main access network node, the first tunnel information corresponding to the tunnel endpoint allocated by the user plane node of the core network is obtained from the received first tunnel establishment request, and then the first tunnel information is sent to the main access network node.
Similarly, in the embodiment of the invention, a plurality of modes for establishing the second tunnel between the auxiliary access network node and the main access network node exist, and optionally, third tunnel information corresponding to the tunnel endpoint distributed by the main access network node is sent to the auxiliary access network node; and receiving fourth tunnel information corresponding to the tunnel endpoint allocated by the auxiliary access network node, wherein if the execution main body of the steps 200-220 is the main access network node, the operation is performed according to the above operation, and if the execution main body of the steps 200-220 is not the main access network node, the fourth tunnel information corresponding to the tunnel endpoint allocated by the auxiliary access network node is further sent to the main access network node after the fourth tunnel information is received.
Similar to the above manner of establishing the first tunnel or the second tunnel, in the embodiment of the present invention, there are also various manners of establishing the third tunnel between the user plane node of the core network and the auxiliary access network node, and optionally, the first tunnel information corresponding to the tunnel endpoint allocated by the user plane node of the core network is obtained from the received first tunnel establishment request, and the first tunnel information is sent to the auxiliary access network node; and receiving fourth tunnel information corresponding to the tunnel endpoint distributed by the auxiliary access network node, and sending the fourth tunnel information to the core network user plane node.
In the embodiment of the present invention, each piece of tunnel information at least includes: IP (Internet Protocol ) address information and TEID (Tunnel Endpoint Identifier, tunnel endpoint identification information).
In order to better understand the embodiments of the present invention, specific application scenarios are given below, and a process of establishing a tunnel is described in further detail, where an execution body is illustrated by taking an eNB as an example (a primary access network node is an eNB, a secondary access network node is an SCN, a core network user plane node is an SGW, and a core network control plane node is an MME):
embodiment two:
(as shown in fig. 3A in particular, OAM sends a tunnel type indication message to the eNB and tunnels are first established):
Step 300: reporting a capability indication message carrying tunnel type information supported by the node to an OAM (operation administration and maintenance) after the eNB is started;
in this step, the capability indication message carrying the supported tunnel type information indicates that the eNB may establish the first tunnel and the second tunnel, and/or may establish the third tunnel.
Step 310: the OAM sends a tunnel type indication message to the eNB according to the preset of an operator;
in this step, the tunnel type indication message carries type information of the tunnel to be established, which indicates that the OAM allows the eNB to terminate for SCN to establish the first tunnel and the second tunnel.
Step 320: when the SGW determines that the core network and the terminal need to perform data interaction, a second tunnel establishment request is sent to the MME, and after receiving the second tunnel establishment request, the MME sends a first tunnel establishment request to the eNB;
in this step, the second tunnel establishment request sent by the SGW carries first tunnel information (i.e., te_sgw_ul) corresponding to the tunnel endpoint allocated by the SGW and used for receiving uplink data, where the te_sgw_ul includes IP address information of the tunnel endpoint and identification information of the tunnel endpoint.
Step 330: and the eNB establishes a first tunnel between the eNB and the SGW and establishes a second tunnel between the eNB and the SCN according to the received tunnel type indication message sent by the OAM.
In this step, the second tunnel may be established first, and then the first tunnel may be established, as shown in fig. 3B, which will not be described in detail herein.
In practical application, when the tunnel is first established, the OAM may carry information for establishing the first tunnel and the second tunnel or information for establishing the third tunnel in the tunnel type indication message sent to the eNB, and at this time, step 330 is changed to: the eNB establishes the information of the third tunnel between the SGW and the SCN according to the received tunnel type indication message sent by the OAM, as shown in fig. 3C.
In the second embodiment, after the first tunnel is established, as long as the OAM no longer sends the tunnel type indication message to the eNB, during this time, the eNB performs according to step 330 after receiving the tunnel establishment request message.
Since each tunnel is established for each service of each terminal, the established tunnels are released after each service is completed. After the second embodiment, in practical application, the OAM indicates that the tunnel type established by the eNB is changed if necessary, and at this time, a tunnel type indication message is sent to the eNB, which is described in the third embodiment below.
Embodiment three (specifically, as shown in fig. 3D, OAM sends a tunnel type indication message to eNB, not first tunnel setup): :
step 3000: OAM sends a tunnel type indication message carrying the establishment of a third tunnel to eNB;
in this step, after the data load of the established tunnel between the SCN and the eNB exceeds the first preset threshold, the situation may be actively reported to the OAM, or the eNB reports the situation to the OAM, and after receiving the situation, the OAM sends the tunnel type indication message.
Step 3100: when the SGW determines that the core network and the terminal need to perform data interaction, a second tunnel establishment request is sent to the MME, and after receiving the second tunnel establishment request, the MME sends a first tunnel establishment request to the eNB;
step 3200: and the eNB establishes a third tunnel between the SCN and the SGW according to the received tunnel type indication message sent by the OAM.
In this embodiment, the eNB first receives the tunnel type indication message sent by the OAM, and then receives the first tunnel establishment request sent by the MME to the eNB; the eNB may first receive the first tunnel establishment request sent by the MME to the eNB and then receive the tunnel type indication message sent by the OAM, as shown in fig. 3E, that is, in the third embodiment, step 3000 and step 3100 may be performed first and then step 3200 may be performed, or step 3200 may be performed first and then step 3000 and step 3100 may be performed.
In the second and third embodiments, the OAM sends the tunnel type indication message to the eNB as an example, and in practical application, the core network user plane node may be a SGW sends the tunnel type indication message to the eNB, or the core network control plane node may be a MME sends the tunnel type indication message to the eNB. And will not be described in detail herein.
In the above embodiment, when informing the eNB of the type of tunnel establishment, the type information of the tunnel to be established is carried in the tunnel type indication message, and the tunnel type indication message is sent to the eNB, in practical application, the type information of the tunnel to be established may also be carried in the first tunnel establishment request, and the eNB obtains the type information of the tunnel to be established from the first tunnel establishment request, thereby determining whether to establish the first tunnel and the second tunnel, or directly establish the third tunnel.
The following description will take, as an example, the MME carrying type information of a tunnel to be established in a first tunnel type indication message to notify an eNB.
Embodiment four: (As shown in FIG. 4A, a tunnel is first established)
Step 400: after the eNB is started, reporting a capability indication message carrying tunnel type information supported by the node to the MME;
in this step, the capability indication message carrying the tunnel type information supported by the node indicates that the eNB has the capability of terminating the tunnel from the SGW for the SCN, and establishes the first tunnel and the second tunnel.
Step 410: when the SGW determines that the core network and the terminal need to perform data interaction, a second tunnel establishment request is sent to the MME, and after receiving the second tunnel establishment request, the MME sends a first tunnel establishment request to the eNB;
in this step, the first tunnel establishment request carries not only the type information of the eNB for establishing the tunnel, but also the first tunnel information corresponding to the tunnel endpoint allocated by the SGW for receiving the uplink data.
Step 420: the eNB establishes a first tunnel and a second tunnel based on the received first tunnel establishment request.
In the fourth embodiment, after the tunnel is first established, as long as the MME does not send the tunnel type indication message carrying the tunnel type information change to the eNB, or does not send the tunnel type indication message to the eNB, during this period, the eNB performs the execution according to step 420 after receiving the first tunnel establishment request message.
Since each tunnel is established for each service of each terminal, the established tunnels are released after each service is completed. After the fourth embodiment, in practical application, when the tunnel is re-established, the MME may instruct the eNB to establish a third tunnel instead of the first tunnel and the second tunnel, which is described in the fifth embodiment.
Fifth embodiment (specifically, as shown in fig. 4B, the tunnel is not first established):
step 4000: when the SGW determines that the core network and the terminal need to perform data interaction, a second tunnel establishment request is sent to the MME, and after receiving the second tunnel establishment request, the MME sends a first tunnel establishment request to the eNB;
in the step, the MME determines the type information of the tunnel to be established carried in the first tunnel establishment request indication as the information of the third tunnel; the MME receives the message reported by the SCN and determines that the data load of the established tunnel between the SCN and the eNB exceeds a first preset threshold. In practical application, after the data load of the established tunnel between the SCN and the eNB exceeds the first preset threshold, the SCN actively reports the situation to the MME, or the eNB reports the situation to the MME.
In this step, the MME adds the type information for establishing the third tunnel to the first tunnel establishment request, and at the same time, the first tunnel establishment request also carries the first tunnel information allocated by the SGW for receiving the uplink data.
Step 4100: and the eNB establishes a third tunnel between the SCN and the SGW according to the received first tunnel establishment request sent by the MME.
In practical application, the MME is taken as an example for both the fourth embodiment and the fifth embodiment, and when the SGW sends a second tunnel establishment request, as shown in fig. 4C (first establishing a second tunnel, then establishing a first tunnel), 4D (first establishing a second tunnel, then establishing a first tunnel), and 4E (first establishing a first tunnel, then establishing a second tunnel), type information of the tunnel to be established is added to the second tunnel establishment request, and the process is similar to that of the fourth embodiment and the fifth embodiment, and will not be described in detail herein.
In practical application, when the type information of the tunnel to be established is acquired, the network load information may also be directly acquired, and the type information of the tunnel to be established is determined according to the network load information, and the description is given below taking the eNB acquiring the network load information as an example.
Example six (specifically as shown in fig. 5A):
step 500: the eNB receives a first tunnel establishment request sent by an MME;
step 510: the eNB receives a message which is reported by the MME and carries the path switching signaling load exceeding a second preset threshold value;
in this step, the eNB may detect the path switching signaling load of the MME in real time.
Step 520: and the eNB establishes a first tunnel and a second tunnel according to the message reported by the MME.
In practical applications, the first tunnel may be established first, and then the second tunnel may be established, as shown in fig. 5B.
Referring to fig. 6, an embodiment of the present invention provides a device for tunnel establishment, which mainly includes:
a receiving tunnel establishment request module 600, configured to receive a first tunnel establishment request sent by a core network control plane node, where the first tunnel establishment request is sent by the core network control plane node after receiving a second tunnel establishment request sent by a core network user plane node;
An acquire tunnel type module 610, configured to acquire type information of a tunnel to be established;
the tunnel establishment module 620 is configured to establish a tunnel between the user plane node of the core network and the auxiliary access network node based on the type information of the tunnel to be established according to the first tunnel establishment request.
Optionally, in the embodiment of the present invention, the tunnel type obtaining module 610 is specifically configured to:
receiving a tunnel type indication message sent by an OAM system, a core network user plane node or a core network control plane node, and analyzing type information of a to-be-established tunnel from the tunnel type indication message; the type information of the tunnel to be established is OAM, or a user plane node of the core network, or a control plane node of the core network is determined according to the network load information.
Optionally, in the embodiment of the present invention, the tunnel type obtaining module 610 may be further specifically configured to:
analyzing type information of a tunnel to be established from a first tunnel establishment request;
the tunnel type information acquired from the first tunnel establishment request is determined by a control plane node of the core network or a user plane node of the core network according to network load information.
Optionally, in the embodiment of the present invention, the tunnel type obtaining module 610 may be further specifically configured to:
If the type information of the tunnel to be established is obtained according to the tunnel type indication message, before receiving the tunnel type indication message, transmitting a capability indication message carrying the supported tunnel type information to an OAM system, or a core network user plane node, or a core network control plane node;
if the type information of the tunnel to be established is acquired according to the first tunnel establishment request, before the first tunnel establishment request is received, a capability indication message carrying the supported tunnel type information is sent to the user plane node of the core network or the control plane node of the core network.
In the embodiment of the present invention, the tunnel type obtaining module 610 may be further specifically configured to:
and acquiring network load information, and determining the type information of the tunnel to be established according to the network load information.
In the embodiment of the present invention, the network load information for determining the type information of the tunnel to be established, which is acquired by the tunnel type module 610, includes various information, and optionally, the data load of the tunnel established between the auxiliary access network node and the main access network node; and/or, path switching signaling load of the core network control plane node.
In the embodiment of the present invention, optionally, the type information of the tunnel to be established acquired by the tunnel type acquiring module allows the tunnel from the user plane node of the core network to be terminated for the auxiliary access network node, or prohibits the tunnel from the user plane node of the core network from being terminated for the auxiliary access network node.
Optionally, in the embodiment of the present invention, the tunnel establishment module 620 is specifically configured to:
establishing a first tunnel between a user plane node of a core network and a main access network node, and establishing a second tunnel between an auxiliary access network node and the main access network node; or, a third tunnel between the user plane node of the core network and the auxiliary access network node is established.
In the embodiment of the present invention, when the first tunnel is established, optionally, the tunnel establishment module 620 is specifically configured to:
and acquiring first tunnel information corresponding to the tunnel endpoint distributed by the core network user plane node from the received first tunnel establishment request, and transmitting second tunnel information corresponding to the tunnel endpoint distributed by the main access network node to the core network user plane node.
In the embodiment of the present invention, when the second tunnel is established, optionally, the tunnel establishment module 620 is specifically configured to:
and sending the third tunnel information corresponding to the tunnel endpoint distributed by the main access network node to the auxiliary access network node, and receiving the fourth tunnel information corresponding to the tunnel endpoint distributed by the auxiliary access network node.
In the embodiment of the present invention, when the third tunnel is established, optionally, the tunnel establishment module 620 is specifically configured to:
acquiring first tunnel information corresponding to a tunnel endpoint distributed by a user plane node of a core network from a received first tunnel establishment request, and sending the first tunnel information to an auxiliary access network node; and receiving fourth tunnel information corresponding to the tunnel endpoint distributed by the auxiliary access network node, and sending the fourth tunnel information to the core network user plane node.
Example seven (specifically, as shown in fig. 7):
step 700: receiving a message carrying network load information;
step 710: determining type information of a tunnel to be established according to the network load information;
step 720: and establishing a tunnel between the user plane node of the core network and the auxiliary access network node according to the type information of the tunnel to be established.
In the embodiment of the present invention, the network load information may have various forms, and optionally, one or any combination of a data load of a tunnel established between the auxiliary access network node and the main access network node, a signaling load of a core network control plane node, and a transmission network load of an auxiliary access network node X2 interface, where the data load of the tunnel established between the auxiliary access network node and the main access network node and the transmission network load of the auxiliary access network node X2 interface are sent by the auxiliary access network node, and the signaling load of the core network control plane node is sent by the core network control plane node, and of course, other information may also be included, which will not be described in detail herein.
For example, there are various ways of receiving the data load of the tunnel established between the secondary access network node and the primary access network node or the transmission network load of the secondary access network node X2 interface, and optionally, after the receiving main body sends a request to the secondary access network node, the secondary access network node reports the load to the receiving main body, or the secondary access network node periodically reports the load to the receiving main body.
For another example, there are various manners of receiving the signaling load of the core network control plane node, alternatively, after the signaling load of the core network control plane node reaches the third preset threshold, the core network control plane node actively sends the signaling load to the receiving main body, or the receiving main body periodically checks the signaling load of the core network control plane node, so as to obtain the signaling load.
In the embodiment of the invention, various modes for determining the type information of the tunnel to be established according to the network load information are adopted, and optionally, the following modes are adopted:
determining type information of a bearer to be established according to the network load information; and is combined with
And determining the type information of the tunnel to be established according to the type information of the bearer to be established.
In the embodiment of the present invention, optionally, the type information of the bearer to be established is used to indicate that the bearer to be established is served by the primary access network node and the secondary access network node at the same time; or, is served only by the secondary access network node.
In the embodiment of the invention, the type information of the tunnel to be established is used for indicating whether the tunnel to be established is an indirect tunnel or a direct tunnel.
For example, when the transmission network load of the auxiliary access network node X2 interface is greater than a fourth preset threshold, determining that the type information of the tunnel to be established is a direct tunnel, or determining that the type information of the bearer to be established is served only by the auxiliary access network node; when the transmission network load of the auxiliary access network node X2 interface is smaller than or equal to a fourth preset threshold, determining the type information of the tunnel to be established as an indirect tunnel, or determining the type information of the bearer to be established as being served by the main access network node and the auxiliary access network node at the same time.
For another example, when the data load of the tunnel established between the secondary access network node and the primary access network node is greater than a fifth preset threshold, determining that the type information of the tunnel to be established is a direct tunnel, or determining that the type information of the bearer to be established is served only by the secondary access network node; when the data load of the tunnel established between the auxiliary access network node and the main access network node is smaller than or equal to a fifth preset threshold, determining the type information of the tunnel to be established as an indirect tunnel, or determining the type information of the bearer to be established as being served by the main access network node and the auxiliary access network node at the same time.
For another example, when the signaling load of the control plane node of the core network is greater than a sixth preset threshold, determining that the type information of the tunnel to be established is an indirect tunnel, or determining that the type information of the bearer to be established is served by the primary access network node and the secondary access network node at the same time; and when the signaling load of the control plane node of the core network is smaller than or equal to a sixth preset threshold, determining the type information of the tunnel to be established as a direct tunnel, or determining the type information of the bearer to be established as being served by the auxiliary access network node only.
In the above process, when the tunnel is not established for the first time, the information of the type of the tunnel to be established or the type information of the bearer to be established is determined by the determining main body according to the network load information, and when the tunnel is established for the first time, since the network load information is not generated yet, the determining main body can determine the type information of the tunnel to be established or the type information of the bearer to be established according to the pre-configuration of the operator.
When the type information of the bearer to be established indicates that the bearer to be established is served by the main access network node and the auxiliary access network node at the same time, determining that the type of the tunnel to be established is an indirect tunnel, and when the type information of the bearer to be established indicates that the bearer to be established is served by the auxiliary access network node only, determining that the type of the tunnel to be established is a direct tunnel.
In the embodiment of the invention, various modes for establishing the tunnel between the user plane node of the core network and the auxiliary access network node according to the type information of the tunnel to be established are provided:
for example, when the type information of the tunnel to be established indicates that the type of the tunnel to be established is an indirect tunnel, a first tunnel between the user plane node of the core network and the primary access network node is established, and a second tunnel between the secondary access network node and the primary access network node is established, or a second tunnel between the secondary access network node and the primary access network node is established.
For another example, when the type information of the tunnel to be established indicates that the type of the tunnel to be established is a direct tunnel, a third tunnel between the user plane node of the core network and the auxiliary access network node is established.
In the embodiment of the invention, a plurality of modes for establishing the first tunnel between the core network user plane node and the main access network node are available, and optionally, the first tunnel information corresponding to the tunnel endpoint distributed by the core network user plane node is obtained, and the second tunnel information corresponding to the tunnel endpoint distributed by the main access network node is sent to the core network user plane node through the core network control plane node.
If the execution body of the steps 700-720 is the primary access network node, and the operation is performed according to the foregoing operation, if the execution body of the steps 700-720 is not the primary access network node, after obtaining the first tunnel information corresponding to the tunnel endpoint allocated by the core network user plane node, the first tunnel information is further sent to the primary access network node, and before sending the second tunnel information corresponding to the tunnel endpoint allocated by the primary access network node to the core network user plane node through the core network control plane node, the second tunnel information is further obtained from the primary access network node.
Similarly, in the embodiment of the invention, a plurality of modes for establishing the second tunnel between the auxiliary access network node and the main access network node exist, and optionally, third tunnel information corresponding to the tunnel endpoint distributed by the main access network node is sent to the auxiliary access network node; and receiving fourth tunnel information corresponding to the tunnel endpoint distributed by the auxiliary access network node.
If the execution body of the steps 700-720 is the primary access network node, and the operation is performed according to the foregoing operation, if the execution body of the steps 700-720 is not the primary access network node, before sending the third tunnel information corresponding to the tunnel endpoint allocated by the primary access network node to the secondary access network node, the third tunnel information is further acquired from the primary access network node, and after acquiring the fourth tunnel information corresponding to the tunnel endpoint allocated by the secondary access network node, the fourth tunnel information is further sent to the primary access network node.
Similar to the above manner of establishing the first tunnel or the second tunnel, in the embodiment of the present invention, there are also various manners of establishing the third tunnel between the user plane node of the core network and the auxiliary access network node, and optionally, the method includes obtaining first tunnel information corresponding to the tunnel endpoint allocated by the user plane node of the core network and sending the first tunnel information to the auxiliary access network node; and acquiring fourth tunnel information corresponding to the tunnel endpoint distributed by the auxiliary access network node, and transmitting the fourth tunnel information to the core network user plane node through the core network control plane node.
In the embodiment of the present invention, each piece of tunnel information at least includes: IP (Internet Protocol ) address information and TEID (Tunnel Endpoint Identifier, tunnel endpoint identification).
The execution main body of the seventh embodiment of the present invention is various, for example, may be: the main access network node may be an auxiliary access network node, or may be a core network user plane node or a core network control plane node, where when the execution body is the main access network node, the method specifically may be: a base station, or an AP (Access Point), an Access Point; when the execution body is a control plane node of the core network, the method specifically may be: MME, SGSN, etc.
Referring to fig. 8, an embodiment of the present invention provides a device for tunnel establishment, which mainly includes:
a receiving unit 800, configured to receive a message carrying network load information;
a type determining unit 810, configured to determine type information of a tunnel to be established according to network load information;
a tunnel establishment unit 820, configured to establish a tunnel between the user plane node of the core network and the auxiliary access network node according to the type information of the tunnel to be established.
Optionally, in the embodiment of the present invention, the receiving unit 800 is specifically configured to:
receiving a message carrying a data load of a tunnel established between the auxiliary access network node and the main access network node; and/or
Receiving a message carrying the signaling load of a control plane node of a core network; and/or
And receiving a message carrying the transmission network load of the X2 interface of the auxiliary access network node sent by the auxiliary access network node.
Optionally, in the embodiment of the present invention, the type determining unit 810 is specifically configured to:
determining type information of a bearer to be established according to the network load information; and is combined with
And determining the type information of the tunnel to be established according to the type information of the bearer to be established.
Optionally, in the embodiment of the present invention, the type information of the bearer to be established determined by the type determining unit 810 is used to indicate that the bearer to be established is served by the primary access network node and the secondary access network node at the same time; or, is served only by the secondary access network node.
Optionally, in the embodiment of the present invention, the type information of the tunnel to be established determined by the type unit is used to indicate that the tunnel to be established is an indirect tunnel or a direct tunnel.
Optionally, in the embodiment of the present invention, the tunnel establishment unit 820 is specifically configured to:
when the type information of the tunnel to be established indicates that the tunnel to be established is an indirect tunnel, establishing a first tunnel between a user plane node of a core network and a main access network node, and establishing a second tunnel between an auxiliary access network node and the main access network node, or establishing a second tunnel between the auxiliary access network node and the main access network node;
and when the type information of the tunnel to be established indicates that the tunnel to be established is a direct tunnel, establishing a third tunnel between the user plane node of the core network and the auxiliary access network node.
Optionally, in the embodiment of the present invention, when the tunnel establishment unit 820 establishes the first tunnel between the user plane node of the core network and the main access network node, the method specifically includes:
acquiring first tunnel information corresponding to tunnel endpoints distributed by user plane nodes of a core network, and
and sending the second tunnel information corresponding to the tunnel endpoint distributed by the main access network node to the core network user plane node through the core network control plane node.
Optionally, in the embodiment of the present invention, when the tunnel establishment unit 820 establishes the second tunnel between the secondary access network node and the primary access network node, the tunnel establishment unit specifically includes:
transmitting third tunnel information corresponding to tunnel endpoints distributed by the main access network node to the auxiliary access network node, and
and obtaining fourth tunnel information corresponding to the tunnel endpoint distributed by the auxiliary access network node. .
Optionally, in the embodiment of the present invention, when the tunnel establishment unit 820 establishes the third tunnel between the user plane node of the core network and the auxiliary access network node, the tunnel establishment unit specifically includes:
acquiring first tunnel information corresponding to tunnel endpoints distributed by a user plane node of a core network, and sending the first tunnel information to an auxiliary access network node;
and acquiring fourth tunnel information corresponding to the tunnel endpoint distributed by the auxiliary access network node, and transmitting the fourth tunnel information to the core network user plane node through the core network control plane node.
In summary, in the embodiment of the present invention, a method for establishing a tunnel is provided, where a first tunnel establishment request sent by a control plane node of a core network is received, where the first tunnel establishment request is sent by the control plane node of the core network after receiving a second tunnel establishment request sent by a user plane node of the core network; acquiring type information of a tunnel to be established; according to the first tunnel establishment request, based on the type information of the tunnel to be established, the tunnel between the user plane node of the core network and the auxiliary access network node is established, so that even if the execution main body executing the steps 200-220 is unchanged, the type of the tunnel established for each service of the terminal can be the same or different, for example, the first tunnel and the second tunnel can be established for one service of the terminal, and the third tunnel can be established for the next service of the terminal, thus reducing the congestion of the backbone network between the auxiliary access network node and the main access network node, reducing the transmission delay of user data packets and reducing the loss of user data packets, or avoiding the tunnel established between the auxiliary access network node and the user plane node of the core network from being a direct-connection tunnel when the path switching signaling needed to be transmitted and received by the control plane node of the core network is too much, thus avoiding the paralysis of the core network caused by the path switching signaling needed to be transmitted and received by the control plane node of the core network.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions in the flowchart block or blocks and/or block diagram block or blocks.
While the above embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following appended claims be interpreted as including the foregoing embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various modifications and variations can be made to the embodiments of the present invention without departing from the spirit or scope of the embodiments of the invention. Thus, if such modifications and variations of the embodiments of the present invention fall within the scope of the claims and the equivalents thereof, the present invention is also intended to include such modifications and variations.

Claims (12)

1. A method of tunnel establishment, comprising:
Receiving a first tunnel establishment request sent by a control plane node of a core network;
receiving a tunnel type indication message sent by an Operation Administration and Maintenance (OAM) system, and analyzing type information of a tunnel to be established from the tunnel type indication message; the type information of the tunnel to be established is determined by the OAM, and the type information of the tunnel to be established is used for indicating whether the tunnel to be established is an indirect tunnel or a direct tunnel;
establishing a tunnel between a user plane node of a core network and an auxiliary access network node based on the type information of the tunnel to be established according to the first tunnel establishment request; when the type information of the tunnel to be established indicates that the tunnel to be established is the indirect tunnel, a first tunnel between the user plane node of the core network and a main access network node is established, and a second tunnel between the auxiliary access network node and the main access network node is established; and when the type information of the tunnel to be established indicates that the tunnel to be established is the direct tunnel, establishing a third tunnel between the user plane node of the core network and the auxiliary access network node.
2. The method of claim 1, wherein the type information of the tunnel to be established comprises: the tunnel from the core network user plane node is allowed to be terminated for the secondary access network node or is forbidden to be terminated for the secondary access network node.
3. The method of claim 1, wherein the establishing the first tunnel between the core network user plane node and the primary access network node comprises:
acquiring first tunnel information corresponding to tunnel endpoints distributed by the core network user plane nodes from the first tunnel establishment request;
and sending second tunnel information corresponding to the tunnel endpoint distributed by the main access network node to the core network user plane node.
4. The method of claim 3, wherein the establishing a second tunnel between the secondary access network node and the primary access network node comprises:
transmitting third tunnel information corresponding to the tunnel endpoint distributed by the main access network node to the auxiliary access network node;
and receiving fourth tunnel information corresponding to the tunnel endpoint distributed by the auxiliary access network node.
5. The method of claim 1, wherein the establishing a third tunnel between the core network user plane node and the secondary access network node comprises:
acquiring first tunnel information corresponding to tunnel endpoints distributed by the core network user plane node from the received first tunnel establishment request;
Transmitting the first tunnel information to the auxiliary access network node;
receiving fourth tunnel information corresponding to tunnel endpoints distributed by the auxiliary access network node;
and sending the fourth tunnel information to the user plane node of the core network.
6. The method of claim 4 or 5, wherein the tunnel information includes internet protocol, IP, address information and tunnel endpoint identification, TEID.
7. The method of any one of claims 1-5, further comprising:
acquiring network load information;
and determining the type information of the tunnel to be established according to the network load information.
8. The method of claim 7, wherein the network load information comprises:
data load of tunnel established between the auxiliary access network node and the main access network node, and/or
And the path switching signaling load of the core network control plane node.
9. The method according to any of claims 1-5, wherein the first tunnel establishment request is sent in response to the core network control plane node receiving a second tunnel establishment request sent by the core network user plane node.
10. A communication device comprising a processor for coupling with a memory, reading and executing instructions in the memory to implement the method of any of claims 1-9.
11. The communications apparatus of claim 10, further comprising the memory.
12. A computer readable storage medium comprising instructions which, when executed, cause the method of any of claims 1-9 to be performed.
CN201910622740.1A 2013-08-08 2014-01-26 Tunnel establishment method and device Active CN110446274B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910622740.1A CN110446274B (en) 2013-08-08 2014-01-26 Tunnel establishment method and device

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
PCT/CN2013/081101 WO2015018038A1 (en) 2013-08-08 2013-08-08 Tunnel establishment method and device
CNPCT/CN2013/081101 2013-08-08
CN201910622740.1A CN110446274B (en) 2013-08-08 2014-01-26 Tunnel establishment method and device
CN201480000407.2A CN104904308B (en) 2013-08-08 2014-01-26 A kind of method and device that tunnel is established
PCT/CN2014/071511 WO2015018194A1 (en) 2013-08-08 2014-01-26 Tunnel establishment method and device

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CN201480000407.2A Division CN104904308B (en) 2013-08-08 2014-01-26 A kind of method and device that tunnel is established

Publications (2)

Publication Number Publication Date
CN110446274A CN110446274A (en) 2019-11-12
CN110446274B true CN110446274B (en) 2023-06-27

Family

ID=52460539

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910622740.1A Active CN110446274B (en) 2013-08-08 2014-01-26 Tunnel establishment method and device

Country Status (5)

Country Link
US (2) US10587431B2 (en)
EP (2) EP3032911B1 (en)
KR (1) KR101833397B1 (en)
CN (1) CN110446274B (en)
WO (2) WO2015018038A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106792773B (en) * 2015-11-24 2020-07-14 上海诺基亚贝尔股份有限公司 Data transmission method and equipment based on virtual anchor point
CN108377527B (en) * 2016-11-02 2021-02-26 华为技术有限公司 Network architecture suitable for flexible deployment scene
CN108282817B (en) * 2017-01-05 2021-08-20 华为技术有限公司 Information transmission method and device
CN110635929A (en) * 2018-06-21 2019-12-31 中兴通讯股份有限公司 Method, device, system, equipment and computer medium for configuring data stream
US11362920B2 (en) * 2019-06-13 2022-06-14 Hughes Network Systems, Llc Enhanced network communication using multiple network connections
CN110838965B (en) * 2019-09-25 2022-02-11 北京华为数字技术有限公司 Tunnel establishment method and receiving node

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101128041A (en) * 2006-08-15 2008-02-20 华为技术有限公司 Processing method and system after downlink data tunnel failure between access network and core network
CN102056267A (en) * 2009-11-06 2011-05-11 中兴通讯股份有限公司 Network load controlling method, network media gateway and network control network element
CN102710812A (en) * 2012-06-20 2012-10-03 华为技术有限公司 Tunnel establishment method, UE and NNI gateway

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8077681B2 (en) 2002-10-08 2011-12-13 Nokia Corporation Method and system for establishing a connection via an access network
CN101136835B (en) * 2007-09-30 2011-09-21 中兴通讯股份有限公司 Bearing establishment method under idle mode
CN101409951B (en) 2007-10-11 2010-08-25 华为技术有限公司 Method for establishing load bearing and relevant apparatus
WO2009057045A2 (en) * 2007-10-29 2009-05-07 Nokia Corporation Method and apparatus for reactivating a data channel
CN101557609A (en) * 2008-04-07 2009-10-14 华为技术有限公司 Method of user load transfer, communication system and core network control node
KR101084769B1 (en) 2008-12-23 2011-11-21 주식회사 케이티 System and method for supporting network mobility based id-location separation
CN101854285A (en) * 2009-04-03 2010-10-06 华为技术有限公司 Carrier-grade network address translation equipment discovery method, equipment and system
US20120282929A1 (en) * 2009-11-16 2012-11-08 Telefonaktiebolaget Lm Ericsson (Publ) Apparatuses and Methods for Reducing a Load on a Serving Gateway in a Communications Network Systems
CN101753638B (en) * 2009-12-08 2013-08-14 华为技术有限公司 Control method, device and communication system of direct tunnel
CN102638899A (en) 2011-02-11 2012-08-15 中兴通讯股份有限公司 Method and system for establishing service bearer
WO2012129136A1 (en) 2011-03-18 2012-09-27 Alcatel-Lucent Usa Inc. System and method for session restoration at geo-redundant gateways
CN102301788B (en) 2011-04-11 2013-09-11 华为技术有限公司 Method and device for establishing X2 link
CN102790979B (en) 2011-05-18 2015-06-17 华为终端有限公司 Method and device for realizing priority alarm (PAM) in communication between machines
WO2013009892A1 (en) * 2011-07-11 2013-01-17 Interdigital Patent Holdings, Inc. Systems and methods for establishing and maintaining multiple cellular connections and/or interfaces
US9313094B2 (en) 2011-11-03 2016-04-12 Telefonaktiebolaget Lm Ericsson (Publ) Node and method for signalling in a proxy mobile internet protocol based network
CN102404221A (en) * 2011-11-27 2012-04-04 深圳市掌控无限科技有限公司 Multi-link aggregated data transmitting method and system
US9848322B2 (en) * 2013-01-17 2017-12-19 Intel IP Corporation Method, apparatus and system for managing bearers in a wireless communication system
US9100883B2 (en) * 2013-04-03 2015-08-04 Blackberry Limited Methods and systems for wireless communication in heterogeneous networks
CN104185209B (en) * 2013-05-24 2019-11-19 中兴通讯股份有限公司 A kind of small cell base station access system and its method for realizing network insertion
US9479230B2 (en) * 2013-05-31 2016-10-25 Blackberry Limited Systems and methods for data offload in wireless networks

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101128041A (en) * 2006-08-15 2008-02-20 华为技术有限公司 Processing method and system after downlink data tunnel failure between access network and core network
CN102056267A (en) * 2009-11-06 2011-05-11 中兴通讯股份有限公司 Network load controlling method, network media gateway and network control network element
CN102710812A (en) * 2012-06-20 2012-10-03 华为技术有限公司 Tunnel establishment method, UE and NNI gateway

Non-Patent Citations (7)

* Cited by examiner, † Cited by third party
Title
Huawei等.R2-131784 "Impact analysis of bearer split options for multi-site aggregation".《3GPP tsg_ran\WG2_RL2，R2-131784》.2013, *
R2-131054 "Data split options and considerations on U-plane protocol architecture for dual-connectivity";Nokia Siemens Networks等;《3GPP tsg_ran\WG2_RL2》;20130405;全文 *
R2-131164 "Study of Solutions and Radio Protocol Architecture for Dual Connectivity";Huawei等;《3GPP tsg_ran\WG2_RL2》;20130406;全文 *
R2-131403 "S1 versus X2 Approach for Dual Connectivity";Intel Corporation;《3GPP tsg_ran\WG2_RL2》;20130406;全文 *
R2-131621 "Email Discussion Report on U-Plane Alternatives [81bis#19]";Nokia Siemens Networks (Rapporteur);《3GPP tsg_ran\WG2_RL2》;20130510;第33页BlackBerry行 *
R2-131784 "Impact analysis of bearer split options for multi-site aggregation";Huawei等;《3GPP tsg_ran\WG2_RL2，R2-131784》;20130524;第3节PROPOSAL、图1 *
R2-131982 "User plane architecture for dual connectivity";Intel Corporation;《3GPP tsg_ran\WG2_RL2》;20130511;全文 *

Also Published As

Publication number Publication date
KR20160042067A (en) 2016-04-18
US10587431B2 (en) 2020-03-10
EP3032911A4 (en) 2016-08-10
EP3787367B1 (en) 2023-08-23
WO2015018038A1 (en) 2015-02-12
KR101833397B1 (en) 2018-02-28
US20160156485A1 (en) 2016-06-02
EP3032911B1 (en) 2020-09-23
EP3787367A1 (en) 2021-03-03
CN110446274A (en) 2019-11-12
WO2015018194A1 (en) 2015-02-12
US20200153658A1 (en) 2020-05-14
US11323289B2 (en) 2022-05-03
EP3032911A1 (en) 2016-06-15

Similar Documents

Publication Publication Date Title
US10728827B2 (en) Service message sending method, terminal device, and network device
JP6724232B2 (en) Method and apparatus for performing cell identification procedure for network slice based NR in a wireless communication system
US11622406B2 (en) Dual connectivity method and access network device
EP3032871B1 (en) Data transmission method, device and system
US11323289B2 (en) Tunnel establishment method and apparatus
KR20190133031A (en) Communication method and device
CN111436115B (en) PDU session activation method, paging method and device thereof
US11770810B2 (en) Service data transmission method, first communications node, and base station
CN108541031B (en) Service switching method, device and system
US20200162854A1 (en) Service Data Transmission Method And Apparatus
US9549423B2 (en) Method and device for increasing gateway capacity in LTE mode Femto cell system
KR20170072283A (en) Method and apparatus for establishing interface
KR101891229B1 (en) Tunnel establishment method and apparatus
KR101449720B1 (en) Method And Apparatus for Reducing Bearer Setup Time
EP3094128A1 (en) Method, apparatus and system for coordinated communication
CN118120332A (en) Information sending method, information receiving method, device and system
KR20150023156A (en) Method and apparatus for updating quality information of service
KR20150024126A (en) Method and apparatus for transmitting information of mobile phone

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant