WO2015018038A1 - 一种隧道建立的方法及装置 - Google Patents

一种隧道建立的方法及装置 Download PDF

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Publication number
WO2015018038A1
WO2015018038A1 PCT/CN2013/081101 CN2013081101W WO2015018038A1 WO 2015018038 A1 WO2015018038 A1 WO 2015018038A1 CN 2013081101 W CN2013081101 W CN 2013081101W WO 2015018038 A1 WO2015018038 A1 WO 2015018038A1
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WO
WIPO (PCT)
Prior art keywords
tunnel
node
core network
plane node
established
Prior art date
Application number
PCT/CN2013/081101
Other languages
English (en)
French (fr)
Inventor
张涛
蔺波
毕皓
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2013/081101 priority Critical patent/WO2015018038A1/zh
Priority to KR1020187005169A priority patent/KR101891229B1/ko
Priority to PCT/CN2014/071511 priority patent/WO2015018194A1/zh
Priority to CN201910622740.1A priority patent/CN110446274B/zh
Priority to EP20188628.0A priority patent/EP3787367B1/en
Priority to EP14834913.7A priority patent/EP3032911B1/en
Priority to CN201480000407.2A priority patent/CN104904308B/zh
Priority to KR1020167006192A priority patent/KR101833397B1/ko
Publication of WO2015018038A1 publication Critical patent/WO2015018038A1/zh
Priority to US15/014,984 priority patent/US10587431B2/en
Priority to US16/742,643 priority patent/US11323289B2/en

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00Data switching networks
    • H04L12/28Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/46Interconnection of networks
    • H04L12/4633Interconnection of networks using encapsulation techniques, e.g. tunneling
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00Routing or path finding of packets in data switching networks
    • H04L45/22Alternate routing
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00Traffic control in data switching networks
    • H04L47/10Flow control; Congestion control
    • H04L47/12Avoiding congestion; Recovering from congestion
    • H04L47/122Avoiding congestion; Recovering from congestion by diverting traffic away from congested entities
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W24/00Supervisory, monitoring or testing arrangements
    • H04W24/04Arrangements for maintaining operational condition
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic management; Network resource management
    • H04W28/02Traffic management, e.g. flow control or congestion control
    • H04W28/0252Traffic management, e.g. flow control or congestion control per individual bearer or channel
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/10Connection setup
    • H04W76/12Setup of transport tunnels
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00Traffic control in data switching networks
    • H04L47/10Flow control; Congestion control
    • H04L47/12Avoiding congestion; Recovering from congestion
    • H04L47/125Avoiding congestion; Recovering from congestion by balancing the load, e.g. traffic engineering
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/10Connection setup
    • H04W76/15Setup of multiple wireless link connections
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/20Manipulation of established connections
    • H04W76/22Manipulation of transport tunnels

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a method and an apparatus for establishing a tunnel. Background technique
  • Next-generation wireless networks are heterogeneous networks based on the convergence of multiple wireless access technologies, including broadband wireless access, cellular mobile communications systems, digital television broadcast networks, and satellite communications systems.
  • Heterogeneous networks enable interoperability between different systems to ensure that users can take advantage of these heterogeneous wireless access technologies to meet the diverse needs of users.
  • a HetNet Heterogeneous Network
  • a secondary access network node eg, an SCN (Small Cell Node)
  • a primary access network node eg, an eNB (EUTRAN Node B)
  • a heterogeneous network where the secondary access network node covers a small area of the cell, and the primary access network node covers a larger area of the cell, and the HetNet is compared to a HomoNet (Homogeneous Network, which is composed only of the primary access network node).
  • the network has the characteristics of larger throughput and more adaptability to the deployment scenario, which can meet the various needs of users.
  • HetNet Before the terminal interacts with the core network, there must be physical connections between the secondary access network nodes, the primary access network nodes, and some core network nodes, and the physical connections must be established for the terminals.
  • a tunnel for transmitting user data There are a plurality of core network nodes: a core network control plane node, such as an MME (Mobility Management Entity); a core network user plane node, such as an SGW (Serving Gate Way).
  • the core network control plane node and the core network user plane node may also be the same node, for example, SGSN (Serving GPRS Support Node, Serving GPRS Support Node, GPRS (General Packet Radio Service, General Packet Radio Service)).
  • SGSN Serving GPRS Support Node
  • GPRS General Packet Radio Service
  • the terminal can interact with the core network node in HetNet, and the core network node in HetNet can provide services to the terminal.
  • FIG. 1A the tunnel between the secondary access network node and the core network user plane node is through the primary connection
  • the access node performs the transfer, 1 B (the tunnel between the secondary access network node and the core network user plane node is not forwarded through the primary access network node, but is a directly connected tunnel), as shown by
  • the tunnel establishment mode of the primary access network node is fixed. You cannot switch between different tunnel establishment modes. You can only select one tunnel establishment mode in Figure 1A or Figure 1B. You cannot switch between the two tunnel establishment modes. . However, if the primary access network node always selects the tunnel establishment mode shown in FIG.
  • the embodiments of the present invention provide a method and a device for establishing a tunnel, which are used to solve the problem that the user data packet in the prior art has a large transmission delay, a high probability of user data packet loss, or a core network.
  • a method for establishing a tunnel including:
  • the type information of the tunnel to be established is obtained, including:
  • the type information of the to-be-established tunnel is respectively the OAM, or the core network user plane node, or the core network control plane node is determined according to network load information.
  • the type information of the tunnel to be established is obtained, including:
  • the tunnel type information obtained from the first tunnel establishment request is the core network control plane node, or the core network user plane node is determined according to network load information.
  • the tunnel type indication message is received.
  • 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 tunnel to be established is obtained according to the first tunnel establishment request.
  • the type information before receiving the first tunnel establishment request, sends a capability indication message carrying the supported tunnel type information to the core network user plane node or the core network control plane node.
  • the type information of the tunnel to be established is obtained, including:
  • Determining type information of the tunnel to be established according to the network load information Determining type information of the tunnel to be established according to the network load information.
  • the type information of the tunnel to be established is to allow the secondary access network node to terminate the user from the core network.
  • the tunnel of the polygon node, or the tunnel of the user plane node from the core network is forbidden for the secondary access network node.
  • the network load information includes:
  • a data load of the tunnel is established between the secondary access network node and the primary access network node; and/or a path switching signaling load of the core network control plane node.
  • establishing a tunnel between the core network user plane node and the secondary access network node including:
  • the first tunnel between the core network user plane node and the primary access network node is established, including: receiving Acquiring, by the first tunnel establishment request, the first tunnel information corresponding to the tunnel endpoint allocated by the core network user plane node, and
  • the establishing a second tunnel between the secondary access network node and the primary access network node includes:
  • the third tunnel between the core network user plane node and the secondary access network node is established, including: receiving Obtaining, by the first tunnel establishment request, the first tunnel information corresponding to the tunnel endpoint allocated by the core network user plane node, and sending the first tunnel information to the secondary access network Node
  • a device for establishing a tunnel including:
  • the receiving tunnel establishment requesting module is configured to receive a first tunnel establishment request sent by the core network control plane node, where the first tunnel establishment request is sent by the core network control plane node after receiving the core network user plane node The second tunnel is sent after the request is established;
  • Obtaining a tunnel type module configured to obtain type information of a tunnel to be established
  • Establishing a tunneling module configured to establish, according to the first tunnel establishment request, a tunnel between the core network user plane node and the secondary access network node based on the type information of the to-be-established tunnel.
  • the acquiring tunnel type module is specifically configured to:
  • the type information of the to-be-established tunnel is respectively the OAM, or the core network user plane node, or the core network control plane node is determined according to network load information.
  • the acquiring tunnel type module is specifically configured to:
  • the tunnel type information obtained from the first tunnel establishment request is the core network control plane node, or the core network user plane node is determined according to network load information.
  • the acquiring a tunnel type module is specifically configured to:
  • the type information of the tunnel to be established is obtained according to the tunnel type indication message, before sending the tunnel type indication message, send the information to the OAM system, the core network user plane node, or the core network control plane node.
  • the type information of the to-be-established tunnel is obtained according to the first tunnel establishment request, before the receiving the first tunnel establishment request, sending a tunnel carrying the support to the core network user plane node or the core network control plane node
  • the capability indication message of the type information is obtained according to the tunnel type indication message, before sending the tunnel type indication message, before sending the first tunnel establishment request, sending a tunnel carrying the support to the core network user plane node or the core network control plane node.
  • the acquiring tunnel type module is specifically configured to:
  • the information about the type of the tunnel to be established acquired by the acquiring tunnel type module is allowed to be terminated by the secondary access network node.
  • the tunnel of the user plane node of the core network, or the tunnel of the user plane node of the core network is forbidden for the secondary access network node.
  • determining network load information of the type information of the tunnel to be established acquired by the acquiring tunnel type module includes:
  • a data load of the tunnel is established between the secondary access network node and the primary access network node; and/or a path switching signaling load of the core network control plane node.
  • the establishing a tunnel module is specifically used to:
  • the establishing a tunnel module is specifically configured to:
  • the establishing tunnel module is specifically configured to:
  • the third tunnel information corresponding to the tunnel endpoint allocated by the primary access network node is sent to the secondary access network node, and the fourth tunnel information corresponding to the tunnel endpoint allocated by the secondary access network node is received.
  • the establishing a tunnel module is specifically used to:
  • the first tunnel establishment request Acquiring, by the first tunnel establishment request, the first tunnel information corresponding to the tunnel endpoint allocated by the core network user plane node, and sending the first tunnel information to the secondary access network node;
  • the fourth tunnel information corresponding to the tunnel endpoint allocated by the secondary access network node, and the fourth tunnel information is sent to the core network user plane node.
  • the tunnel between the core network user plane node and the secondary access network node can be established according to the type information of the tunnel to be established, that is, Switching between different tunnel establishment modes avoids tunneling between the secondary access network node and the core network user plane node when the backbone network between the secondary access network node and the primary access network node is congested.
  • 1A is a first tunnel establishment manner between a secondary access network node and a core network user plane node in the prior art
  • FIG. 3A is a first flowchart of establishing a tunnel in an embodiment of the present invention
  • FIG. 3B is a second flowchart of establishing a tunnel according to an embodiment of the present invention
  • FIG. 3A is a first flowchart of establishing a tunnel in an embodiment of the present invention
  • FIG. 3B is a second flowchart of establishing a tunnel according to an embodiment of the present invention
  • 3C is a third flowchart of establishing a tunnel in an embodiment of the present invention.
  • 3D is a fourth flowchart of establishing a tunnel in an embodiment of the present invention.
  • 3E is a fifth flowchart of establishing a tunnel in an embodiment of the present invention.
  • FIG. 4A is a sixth flowchart of establishing a tunnel according to an embodiment of the present invention.
  • 4C is an eighth flowchart of establishing a tunnel in an embodiment of the present invention.
  • 4D is a ninth flowchart of tunnel establishment in an embodiment of the present invention.
  • 4E is a tenth flowchart of establishing a tunnel in an embodiment of the present invention.
  • 5A is an eleventh flowchart of establishing a tunnel in an embodiment of the present invention.
  • FIG. 5B is a twelfth flowchart of establishing a tunnel according to an embodiment of the present invention.
  • FIG. 6 is a schematic diagram of a tunnel establishing apparatus according to an embodiment of the present invention. detailed description
  • the type information of the tunnel to be established is obtained according to the information about the type of the tunnel to be established, in the embodiment of the present invention, in order to solve the problem that the user data packet transmission delay is large, and the user data packet is lost.
  • To establish a tunnel between the core network user plane node and the secondary access network node and switch between different tunnel establishment modes to avoid congestion when the backbone network between the secondary access network node and the primary access network node is congested.
  • the tunnel between the secondary access network node and the core network user plane node continues to be transferred through the primary access network node, thereby reducing the backbone network congestion between the secondary access network node and the primary access network node.
  • the user data packet transmission delay is reduced, and the user data packet loss is reduced, or the auxiliary access network node and the core network user plane node are avoided when the path switching signaling of the core network control plane node needs to be sent and received too much.
  • the tunnel between the two is directly connected to the tunnel. In this way, the core network caused by excessive path switching signaling that the core network control plane node needs to send and receive is avoided. Paralysis.
  • Embodiment 1 the detailed process of tunnel establishment is as follows: Embodiment 1:
  • Step 200 Receive a first tunnel establishment request sent by a control node of the core network, where the first tunnel establishment request is sent by the core network control plane node after receiving the second tunnel establishment request sent by the core network user plane node;
  • Step 210 Obtain type information of a tunnel to be established.
  • Step 220 Establish a tunnel between the core network user plane node and the secondary access network node according to the type information of the tunnel to be established according to the first tunnel establishment request.
  • the content carried in the first tunnel establishment request and the second tunnel establishment request may be the same or different.
  • step 200 there are multiple conditions for triggering the core network control plane node to send the first tunnel establishment request, 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 a 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 methods are not used here. Then proceed - detail.
  • 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. It can also be sent by the core network user plane node, or it can be sent by the core network control plane node.
  • OAM Operaation Administration and Maintenance
  • the type information of the tunnel to be established may be determined according to the network load information, and then the determined tunnel type information is added to the tunnel type. In the indication message, then, send.
  • the receiving tunnel type indication message may be before receiving the first tunnel establishment request sent by the core network control plane node, or may be receiving After the first tunnel establishment request sent by the core network control plane node.
  • parsing out to be established from the first tunnel establishment request sent by the core network control plane node Type information of the tunnel where 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.
  • the core network control plane node sends the first tunnel establishment request, and therefore, the core network user plane node may be in the direction.
  • the type information of the tunnel to be established is added to the second tunnel establishment request, and the type of the tunnel to be established after the core network control plane node receives the second tunnel establishment request.
  • the information is added in the first tunnel establishment request.
  • the type information of the tunnel to be established is added to the core network control plane node when the first tunnel establishment request is sent. In the first tunnel establishment request.
  • the network load information is obtained, and the type information of the tunnel to be established is determined based on the network load information.
  • the network load information may include: the data load of the established tunnel between the secondary access network node and the primary access network node, and the core network control plane, regardless of which node determines the network load information.
  • the core network control plane regardless of which node determines the network load information.
  • the tunnel type information is determined by the determined body according to the network load information.
  • the determined entity may be based on the operator's advance.
  • the configuration determines the tunnel type information.
  • the executor of the step 200-220 further sends a capability indication message carrying the supported tunnel type information to the determining entity of the type information of the tunnel to be established, and then determining the body of the type information of the tunnel to be established.
  • the type information of the tunnel to be established is determined according to the supported tunnel type information and the pre-configuration of the operator.
  • 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 OAM system, or the core network user plane node, or the core network control plane node is sent with the supported tunnel type information.
  • Capability indication message 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 OAM system, or the core network user plane node, or the core network control plane node is sent with the supported tunnel type information.
  • the bearer is sent to the core network user plane node or the core network control plane node. Capability of the tunnel type information indicates the message.
  • the tunnel type indication message may be sent by the OAM, and the execution subject of the step 200-220 is the main access network node as an example.
  • the primary access network node After the primary access network node is powered on, it sends a capability indication message carrying the supported tunnel type information to the OAM, and then the OAM sends the tunnel type information determined according to the pre-configuration of the operator to the primary access network node, in the subsequent process.
  • the OAM may determine the type information of the tunnel to be established according to the network load information, and then determine the type information of the tunnel to be established according to the network load information, and carry it in the tunnel type indication message.
  • the data load of the established tunnel between the secondary access network node and the primary access network node may be obtained when the network load is acquired, or may be initiated by the other node. For example, the data load of the established tunnel between the secondary access network node and the primary access network node may be obtained. After the data load of the tunnel between the secondary access network node and the primary access network node (for example, user data traffic) reaches the first preset threshold, the secondary access network node or the primary access network node The data load is reported to the active load. The data load of the established tunnel between the secondary access network node and the primary access network node is periodically checked to obtain the data load.
  • the obtained path switching signaling load of the core network control plane node may be: after the path switching signaling load of the core network control plane node reaches the first preset threshold, the core network control plane node actively takes the path switching signal. If the load is reported, the path switching signaling load of the core network control plane node may be periodically checked to obtain the path switching signaling load.
  • the network load acquired by the 0 AM may be determined when the secondary access network node determines that the data load of the established tunnel between the secondary access network node and the primary access network node exceeds the first preset threshold.
  • the node reports the network load to OAM.
  • the type information of the tunnel to be established may be multiple, for example, the tunnel may be terminated for the secondary access network node to terminate the user plane node from the core network, or may be disabled as the secondary access network node. End the tunnel from the core network user plane node.
  • a tunnel between a core network user plane node and a secondary access network node for example, establishing a first tunnel between a core network user plane node and a primary access network node, and Establishing a second tunnel between the secondary access network node and the primary access network node; for example, establishing a third tunnel between the core network user plane node and the secondary access network node.
  • the core network user plane node is obtained from the received first tunnel establishment request.
  • the first tunnel information corresponding to the assigned tunnel endpoint, and the second tunnel information corresponding to the tunnel endpoint allocated by the primary access network node is sent to the user interface of the core network, where the execution entity of the step 200-220 is the primary access
  • the network node may be operated according to the foregoing operation. If the execution entity of the step 200-220 is not the primary access network node, the first tunnel corresponding to the tunnel endpoint allocated by the core network user plane node is obtained from the received first tunnel establishment request. After the information, the first tunnel information is also sent to the primary access network node.
  • the manner of establishing the third tunnel between the core network user plane node and the secondary access network node is also different, and optionally, Receiving, by the first tunnel establishment request, the first tunnel information corresponding to the tunnel endpoint allocated by the core network user plane node, and sending the first tunnel information to the secondary access network node; receiving the tunnel endpoint allocated by the secondary access network node Corresponding fourth tunnel information, and sending the fourth tunnel information to the core network user plane node.
  • each tunnel information includes at least: an IP (Internet Protocol) address information and a TEID (Tunnel Endpoint Identifier).
  • IP Internet Protocol
  • TEID Traffic Endpoint Identifier
  • the execution entity uses an eNB as an example for description (the primary access network node is an eNB and a secondary access node).
  • the network node is SCN
  • the core network user plane node is SGW
  • the core network control plane node is MME
  • the OAM sends a tunnel type indication message to the eNB, and the tunnel is established for the first time:
  • Step 300 After the eNB is powered on, report the capability indication message carrying the tunnel type information supported by the node to the OAM.
  • the capability indication message carrying the supported tunnel type information indicates that the eNB can establish the first tunnel and the second tunnel, and/or can establish the third tunnel.
  • Step 310 The OAM sends a tunnel type indication message to the eNB according to the preset setting of the operator.
  • the tunnel type indication message carries the type information of the tunnel to be established, and the OAM allows the eNB to terminate the tunnel to the SGW. The first tunnel and the second tunnel.
  • Step S320 The SGW determines that the core network and the terminal need to perform data interaction, and sends a second tunnel establishment request to the MME. After receiving the second tunnel establishment request, the MME sends a first tunnel establishment request to the eNB.
  • the second tunnel establishment request sent by the SGW carries the first tunnel information (ie, TE-SGW-UL) corresponding to the tunnel endpoint allocated by the SGW, and the TE-SGW-UL includes the tunnel endpoint. IP address information and identification information of the tunnel endpoint.
  • Step 330 The eNB establishes a first tunnel between the eNB and the SGW according to the received tunnel type indication message sent by the OAM, and establishes a second tunnel between the eNB and the SCN.
  • the second tunnel may be established first, and then the first tunnel is established, as shown in FIG. 3B, and details are not described herein again.
  • the tunnel type indication message sent by the OAM to the eNB may carry the information of establishing the first tunnel and the second tunnel, and may also carry the information of establishing the third tunnel.
  • step 330 is changed.
  • 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.
  • the eNB after the first tunnel is established, the eNB does not send the tunnel type indication message to the eNB. After receiving the tunnel establishment request message, the eNB performs the step 330. Since each tunnel is established for each service of each terminal, after each service is completed, the established tunnel is released. After the second embodiment, in the actual application, the OAM needs to indicate that the type of the tunnel established by the eNB is changed. In this case, the tunnel type indication message is sent to the eNB.
  • Embodiment 3 (As shown in FIG. 3D, the OAM sends a tunnel type indication message to the eNB, and the tunnel is not established for the first time):
  • Step 3000 The OAM sends a tunnel type indication message carrying the third tunnel to the eNB.
  • the OAM reports the situation to the OAM.
  • the eNB may report the OAM to the OAM.
  • the OAM sends a tunnel type indication message.
  • Step 3100 The SGW determines that the core network and the terminal need to perform data interaction, and sends a second tunnel establishment request to the MME, and after receiving the second tunnel establishment request, the MME sends a first tunnel establishment request to the eNB.
  • Step 3200 The eNB establishes a third tunnel between the SCN and the SGW according to the received tunnel type indication message sent by the OAM.
  • 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 eNB.
  • the tunnel type indication message sent by the OAM is 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. Step 3200 may be performed first, and then step 3000 is performed. Step 3100.
  • the OAM sends a tunnel type indication message to the eNB.
  • the user may be a core network user plane node, for example, the SGW sends a tunnel type indication message to the eNB, or may be a core network control plane.
  • the node such as the MME, sends a tunnel type indication message to the eNB. It will not be described in detail here.
  • the tunnel type indication message carries the type information of the tunnel to be established, and the tunnel type indication message is sent to the eNB.
  • the tunnel to be established may also be established.
  • Type information carried in the first tunnel establishment request, eNB Obtaining the type information of the to-be-established tunnel from the first tunnel establishment request, and determining whether to establish the first tunnel and the second tunnel, or directly establish the third tunnel.
  • the following is an example in which the MME sends the type information of the to-be-established tunnel in the first tunnel type indication message to notify the eNB as an example.
  • Embodiment 4 (As shown in FIG. 4A, the tunnel is first established)
  • Step 400 After the eNB is powered on, report the capability indication message carrying the tunnel type information supported by the node to the MME.
  • the capability indication message carrying the tunnel type information supported by the local node indicates that the eNB has the capability of terminating the tunnel to the SGW for the SCN, and establishing the first tunnel and the second tunnel.
  • Step 410 The SGW determines that the core network and the terminal need to perform data interaction, and sends a second tunnel establishment request to the MME, and after receiving the second tunnel establishment request, the MME sends a first tunnel establishment request to the eNB.
  • the first tunnel establishment request in the step carries not only the type information of the tunnel established by the eNB 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.
  • the MME does not send the tunnel type indication message of the changed tunnel type information to the eNB, or the tunnel type indication message is not sent to the eNB.
  • the eNB After receiving the first tunnel establishment request message, the eNB performs the process according to step 420.
  • the MME may instruct the eNB to establish a third tunnel instead of the first tunnel and the second tunnel.
  • Embodiment 5 (As shown in FIG. 4B, the tunnel is not established for the first time):
  • Step 4000 The SGW determines that the core network and the terminal need to perform data interaction, and sends a second tunnel establishment request to the MME. After receiving the second tunnel establishment request, the MME sends the first to the eNB. Tunnel establishment request;
  • the MME determines that the type information of the tunnel to be established carried in the first tunnel establishment request indication is the information of the third tunnel, where the MME receives the message reported by the SCN, and determines that a tunnel has been established between the SCN and the e B.
  • the data load exceeds the first preset threshold.
  • the SCN may report the situation to the MME actively after the data load of the established tunnel between the eNB and the eNB exceeds the first preset threshold, or may be reported by the eNB to the MME.
  • the MME adds the type information of the third tunnel to the first tunnel establishment request, and the first tunnel establishment request also carries the first tunnel information allocated by the SGW for receiving the uplink data.
  • Step 4100 The eNB establishes a third tunnel between the SCN and the SGW according to the received first tunnel establishment request sent by the MME.
  • the network load information may be directly obtained, and the type information of the tunnel to be established is determined according to the network load information.
  • Embodiment 6 (specifically shown in Figure 5A) ⁇
  • Step 500 The eNB receives a first tunnel establishment request sent by the MME.
  • Step 510 The eNB receives a message that the carrying path switching signaling load reported by the MME exceeds a second preset threshold.
  • the eNB may also detect the path switching signaling load of the MME in real time.
  • Step 520 The eNB establishes a first tunnel and a second tunnel according to the message reported by the MME.
  • the first tunnel may be established first, and then the second tunnel is established, as shown in FIG. 5B.
  • an embodiment of the present invention provides a device for establishing a tunnel, where the device mainly includes:
  • the receiving tunnel establishment requesting module 600 is configured to receive a first tunnel establishment request sent by the core network control plane node, where the first tunnel establishment request is a second tunnel establishment that is sent by the core network control plane node to the core network user plane node. Sent after the request;
  • the tunnel type module 610 is configured to obtain type information of the tunnel to be established.
  • the tunneling module 620 is configured to establish a tunnel between the core network user plane node and the secondary access network node according to the type information of the tunnel to be established according to the first tunnel establishment request.
  • the acquiring tunnel type module 610 is specifically configured to:
  • the acquiring tunnel type module 610 is further configured to: parse the type information of the to-be-established tunnel from the first tunnel establishment request;
  • the tunnel type information obtained from the first tunnel establishment request is a core network control plane node, or the core network user plane node is determined according to network load information.
  • the acquiring tunnel type module 610 may be further configured to: obtain the type information of the tunnel to be established according to the tunnel type indication message, and send the tunnel type indication message to the OAM system, or the core network.
  • the user plane node, or the core network control plane node sends a capability indication message carrying the supported tunnel type information;
  • the 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 before receiving the first tunnel establishment request.
  • determining network load information of the type information of the tunnel to be established acquired by the tunnel type module 610 includes multiple types of information.
  • a tunnel is established between the secondary access network node and the primary access network node. Data load; and/or path switching signaling load of the core network control plane node.
  • obtaining the type information of the tunnel to be established obtained by the tunnel type module is to allow the secondary access network node to terminate the tunnel from the user plane node of the core network, or is prohibited from being the secondary access network.
  • the node terminates the tunnel from the core network user plane node.
  • the tunneling module 620 is specifically configured to:
  • the tunnel module 620 when the first tunnel is established, is specifically configured to:
  • the tunnel module 620 when the second tunnel is established, is specifically configured to:
  • the third tunnel information corresponding to the tunnel endpoint allocated by the primary access network node is sent to the secondary access network node, and the fourth tunnel information corresponding to the tunnel endpoint allocated by the secondary access network node is received.
  • the tunnel module 620 when the third tunnel is established, is specifically configured to:
  • a tunnel establishment method which receives a first tunnel establishment request sent by a control node of a core network, where the first tunnel establishment request is a core network control.
  • the polygon node After receiving the second tunnel establishment request sent by the core network user plane node, the polygon node obtains the type information of the tunnel to be established; and establishes a core network user plane node according to the type information of the tunnel to be established according to the first tunnel establishment request.
  • a tunnel between the secondary access network nodes such that the type of the tunnel established for each service of the terminal may be the same or different, for example, for the terminal, even if the execution body of the step 200-220 is not changed.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus functions in one or more blocks of a flow or a flow diagram and/or block diagram of a flowchart.

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Abstract

本发明涉及通信技术领域,公开了一种隧道建立的方法及装置,即使执行本方案的执行主体不发生变化,针对终端的每一个业务建立的隧道的类型可以相同,也可以不同,例如,针对终端的这一个业务可以建立第一隧道和第二隧道,针对终端的下一个业务可以建立第三隧道,这样,就降低了辅接入网节点和主接入网节点之间的骨干网的拥塞,减小了用户数据包传输时延,及降低了用户数据包丢失,或者,避免了当核心网控制面节点需要收发的路径切换信令过多时,辅接入网节点和核心网用户面节点之间建立的隧道为直连的隧道,这样,就避免了核心网控制面节点需要收发的路径切换信令过多导来核心网的瘫痪。

Description

一种隧道建立的方法及装置
技术领域
本发明涉及通信技术领域, 特别涉及一种隧道建立的方法及装置。 背景技术
随着通信技术的发展, 移动通信网和宽带无线接入网分别朝着各自的发 展方向不断演进, 种类繁多的无线网络相继出现, 且不同的无线网络具有不 同的特征和业务提供能力。
下一代无线网络是基于多种无线接入技术融合的异构网络, 包括宽带无 线接入、 蜂窝移动通信系统、 数字电视广播网络和卫星通信系统。 异构网络 使得不同系统之间可进行互联互通, 以保证用户能够充分利用这些异构的无 线接入技术, 进而满足用户的多种需求。 例如, 由辅接入网节点 (如, SCN ( Small Cell Node , 小小区节点))和主接入网节点(如, eNB ( EUTRAN Node B, 普通基站))混合部署构成的 HetNet ( Heterogeneous Network, 异构网络), 其中, 辅接入网节点覆盖小区的面积较小, 主接入网节点覆盖小区的面积较 大, 该 HetNet相对于只由主接入网节点组成的 HomoNet ( Homogeneous Network, 同构网络), 具有吞吐量更大, 适应部署场景的能力更强等特点, 可以满足用户的多种需求。
在 HetNet中, 终端跟核心网进行交互之前, 辅接入网节点、 主接入网节 点之间以及一些核心网节点之间, 不仅要有物理连接, 还需要在这些物理连 接上为终端建立用于传输用户数据的隧道。 其中, 核心网节点有多种: 核心 网控制面节点, 如, MME ( Mobility Management Entity, 移动性管理实体 ); 核心网用户面节点, 如, SGW ( Serving Gate Way, 服务网关)。 核心网控制面 节点和核心网用户面节点也可以是同一个节点, 例如 SGSN ( Serving GPRS Support Node, 服务 GPRS支持节点, GPRS ( General Packet Radio Service, 通用分组无线业务))。 在建立隧道之后, 终端才能跟 HetNet中的核心网节点 进行交互, HetNet中的核心网节点才能向终端提供服务。
现有技术下, 辅接入网节点和核心网用户面节点之间的隧道建立方式主 要有两种, 如图 1A (辅接入网节点和核心网用户面节点之间的隧道是通过主 接入网节点进行转接的)、 1 B (辅接入网节点和核心网用户面节点之间的隧道 不通过主接入网节点进行转接, 而是一个直连的隧道) 所示, 由于主接入网 节点中的隧道建立方式是固定的, 不能进行不同隧道建立方式的切换, 只能 选择图 1A或图 1B中的一种隧道建立方式, 不能在两种隧道建立方式之间进 行切换。 但是, 若主接入网节点一直选择图 1A所示的隧道建立方式, 由于辅 接入网节点和核心网用户面节点之间的所有用户数据均会经过主接入网节 点, 对辅接入网节点和主接入网节点之间的骨干网造成比较大的压力, 容易 出现拥塞, 进而造成用户数据包的传输时延增大, 增加用户数据包被丢弃的 概率, 降低用户体验; 若主接入网节点一直选择图 1B所示的隧道建立方式, 当终端在不同的辅接入网节点之间移动的时候, 需要核心网控制面节点收发 路径切换信令, 该路径切换指令用于处理终端移动所带来的路径转换, 当核 心网控制面节点需要收发的路径切换信令过多时, 会导致核心网的瘫痪, 从 而使整个网络无法正常运行。 发明内容
本发明实施例提供一种隧道建立的方法及装置, 用以解决现有技术中存 在的用户数据包传输时延较大、 用户数据包丟失的可能性较高, 或者, 核心 网瘫痪的问题。
第一方面, 提供一种隧道建立的方法, 包括:
接收核心网控制面节点发送的第一隧道建立请求, 其中, 所述第一隧道 建立请求是所述核心网控制面节点在接收到核心网用户面节点发送的第二隧 道建立请求后发送的;
获取待建立隧道的类型信息; 根据所述第一隧道建立请求, 基于所述待建立隧道的类型信息, 建立所 述核心网用户面节点和所述辅接入网节点之间的隧道。
结合第一方面, 在第一种可能的实现方式中, 获取待建立隧道的类型信 息, 包括:
接收操作管理和维护 OAM系统, 或者所述核心网用户面节点, 或者所述 核心网控制面节点发送的隧道类型指示消息, 并
从所述隧道类型指示消息中解析出待建立隧道的类型信息;
其中, 所述待建立隧道的类型信息分别是所述 OAM, 或者所述核心网用 户面节点, 或者所述核心网控制面节点根据网络负荷信息确定的。
结合第一方面, 在第二种可能的实现方式中, 获取待建立隧道的类型信 息, 包括:
从所述第一隧道建立请求中解析出待建立隧道的类型信息;
其中, 从所述第一隧道建立请求中获取的隧道类型信息是所述核心网控 制面节点, 或者所述核心网用户面节点根据网络负荷信息确定的。
结合第一方面的第一或者第二种可能的实现方式, 在第三种可能的实现 方式中, 若根据所述隧道类型指示消息获取待建立隧道的类型信息, 在接收 所述隧道类型指示消息之前,向所述 OAM系统,或者所述核心网用户面节点, 或者所述核心网控制面节点发送携带支持的隧道类型信息的能力指示消息; 若根据所述第一隧道建立请求获取待建立隧道的类型信息, 在接收所述 第一隧道建立请求之前, 向所述核心网用户面节点, 或者所述核心网控制面 节点发送携带支持的隧道类型信息的能力指示消息。
结合第一方面, 在第四种可能的实现方式中, 获取待建立隧道的类型信 息, 包括:
获取网络负荷信息, 并
根据所述网络负荷信息确定待建立隧道的类型信息。
结合第一方面的第一至第四种可能的实现方式, 在第五种可能的实现方 式中, 待建立隧道的类型信息是允许为辅接入网节点终结来自于核心网用户 面节点的隧道, 或者, 是禁止为辅接入网节点终结来自于核心网用户面节点 的隧道。
结合第一方面的第一至第五种可能的实现方式, 在第六种可能的实现方 式中, 网络负荷信息包括:
所述辅接入网节点与主接入网节点之间已建立隧道的数据负荷; 和 /或 所述核心网控制面节点的路径切换信令负荷。
结合第一方面, 第一方面的第一至第六种可能的实现方式, 在第七种可 能的实现方式中, 建立所述核心网用户面节点和所述辅接入网节点之间的隧 道, 包括:
建立所述核心网用户面节点和所述主接入网节点之间的第一隧道, 及建 立所述辅接入网节点和所述主接入网节点之间的第二隧道; 或者
建立所述核心网用户面节点和所述辅接入网节点之间的第三隧道。
结合第一方面的第七种可能的实现方式, 在第八种可能的实现方式中, 建立所述核心网用户面节点和所述主接入网节点之间的第一隧道, 包括: 从接收到的所述第一隧道建立请求中获取所述核心网用户面节点分配的 隧道端点对应的第一隧道信息, 并
将所述主接入网节点分配的隧道端点对应的第二隧道信息发送至所述核 心网用户面节点。
结合第一方面的第七种可能的实现方式, 在第九种可能的实现方式中, 建立所述辅接入网节点和所述主接入网节点之间的第二隧道, 包括:
将所述主接入网节点分配的隧道端点对应的第三隧道信息发送至所述辅 接入网节点, 并
接收所述辅接入网节点分配的隧道端点对应的第四隧道信息。
结合第一方面的第七种可能的实现方式, 在第十种可能的实现方式中, 建立所述核心网用户面节点和所述辅接入网节点之间的第三隧道, 包括: 从接收到的所述第一隧道建立请求中获取所述核心网用户面节点分配的 隧道端点对应的第一隧道信息, 并将所述第一隧道信息发送至所述辅接入网 节点;
接收所述辅接入网节点分配的隧道端点对应的第四隧道信息, 并将所述 第四隧道信息发送至所述核心网用户面节点。
第二方面, 提供一种隧道建立的装置, 包括:
接收隧道建立请求模块, 用于接收核心网控制面节点发送的第一隧道建 立请求, 其中, 所述第一隧道建立请求是所述核心网控制面节点在接收到核 心网用户面节点发送的第二隧道建立请求后发送的;
获取隧道类型模块, 用于获取待建立隧道的类型信息;
建立隧道模块, 用于根据所述第一隧道建立请求, 基于所述待建立隧道 的类型信息, 建立所述核心网用户面节点和所述辅接入网节点之间的隧道。
结合第二方面, 在第一种可能的实现方式中, 所述获取隧道类型模块具 体用于:
接收操作管理和维护 OAM系统, 或者所述核心网用户面节点, 或者所述 核心网控制面节点发送的隧道类型指示消息, 并从所述隧道类型指示消息中 解析出待建立隧道的类型信息; 其中, 所述待建立隧道的类型信息分别是所 述 OAM, 或者所述核心网用户面节点, 或者所述核心网控制面节点根据网络 负荷信息确定的。
结合第二方面, 在第二种可能的实现方式中, 所述获取隧道类型模块具 体用于:
从所述第一隧道建立请求中解析出待建立隧道的类型信息;
其中, 从所述第一隧道建立请求中获取的隧道类型信息是所述核心网控 制面节点, 或者所述核心网用户面节点根据网络负荷信息确定的。
结合第二方面的第一或者第二种可能的实现方式, 在第三种可能的实现 方式中, 所述获取隧道类型模块具体用于:
若根据所述隧道类型指示消息获取待建立隧道的类型信息, 在接收所述 隧道类型指示消息之前, 向所述 OAM系统, 或者所述核心网用户面节点, 或 者所述核心网控制面节点发送携带支持的隧道类型信息的能力指示消息; 若根据所述第一隧道建立请求获取待建立隧道的类型信息, 在接收所述 第一隧道建立请求之前, 向所述核心网用户面节点, 或者所述核心网控制面 节点发送携带支持的隧道类型信息的能力指示消息。
结合第二方面, 在第四种可能的实现方式中, 所述获取隧道类型模块具 体用于:
获取网络负荷信息, 并根据所述网络负荷信息确定待建立隧道的类型信 息。
结合第二方面的第一至第四种可能的实现方式, 在第五种可能的实现方 式中, 所述获取隧道类型模块获取的待建立隧道的类型信息是允许为辅接入 网节点终结来自于核心网用户面节点的隧道, 或者, 是禁止为辅接入网节点 终结来自于核心网用户面节点的隧道。
结合第二方面的第一至第五种可能的实现方式, 在第六种可能的实现方 式中, 确定所述获取隧道类型模块获取的待建立隧道的类型信息的网络负荷 信息包括:
所述辅接入网节点与主接入网节点之间已建立隧道的数据负荷; 和 /或 所述核心网控制面节点的路径切换信令负荷。
结合第二方面, 第二方面的第一至第六种可能的实现方式, 在第七种可 能的实现方式中, 所述建立隧道模块具体用于:
建立所述核心网用户面节点和所述主接入网节点之间的第一隧道, 及建 立所述辅接入网节点和所述主接入网节点之间的第二隧道; 或者, 建立所述 核心网用户面节点和所述辅接入网节点之间的第三隧道。
结合第二方面的第七种可能的实现方式, 在第八种可能的实现方式中, 所述建立隧道模块具体用于:
从接收到的所述第一隧道建立请求中获取所述核心网用户面节点分配的 隧道端点对应的第一隧道信息, 并将所述主接入网节点分配的隧道端点对应 的第二隧道信息发送至所述核心网用户面节点。
结合第二方面的第七种可能的实现方式, 在第九种可能的实现方式中, 所述建立隧道模块具体用于:
将所述主接入网节点分配的隧道端点对应的第三隧道信息发送至所述辅 接入网节点, 并接收所述辅接入网节点分配的隧道端点对应的第四隧道信息。
结合第二方面的第七种可能的实现方式, 在第十种可能的实现方式中, 所述建立隧道模块具体用于:
从接收到的所述第一隧道建立请求中获取所述核心网用户面节点分配的 隧道端点对应的第一隧道信息, 并将所述第一隧道信息发送至所述辅接入网 节点; 接收所述辅接入网节点分配的隧道端点对应的第四隧道信息, 并将所 述第四隧道信息发送至所述核心网用户面节点。
发明实施例中, 由于主接入网节点可以支持至少两种隧道建立方式, 可 以根据获取待建立隧道的类型信息来建立核心网用户面节点和辅接入网节点 之间的隧道, 也就是说, 可以在不同的隧道建立方式中进行切换, 避免了当 辅接入网节点和主接入网节点之间的骨干网出现拥塞时, 辅接入网节点和核 心网用户面节点之间的隧道继续通过主接入网节点进行转接, 这样, 就降低 了辅接入网节点和主接入网节点之间的骨干网的拥塞, 减小了用户数据包传 输时延, 及降低了用户数据包丢失, 或者, 避免了当核心网控制面节点需要 收发的路径切换信令过多时, 辅接入网节点和核心网用户面节点之间的隧道 为直连的隧道, 这样, 就避免了核心网控制面节点需要收发的路径切换信令 过多导致的核心网的瘫痪。 附图说明
图 1A 为现有技术中辅接入网节点和核心网用户面节点之间的第一种隧 道建立方式;
图 1B 为现有技术中辅接入网节点和核心网用户面节点之间的第二种隧 道建立方式;
图 2为本发明实施例中隧道建立的详细流程图;
图 3 A为本发明实施例中隧道建立的第一流程图; 图 3B为本发明实施例中隧道建立的第二流程图;
图 3C为本发明实施例中隧道建立的第三流程图;
图 3D为本发明实施例中隧道建立的第四流程图;
图 3E为本发明实施例中隧道建立的第五流程图;
图 4A为本发明实施例中隧道建立的第六流程图。
图 4B为本发明实施例中隧道建立的第七流程图;
图 4C为本发明实施例中隧道建立的第八流程图;
图 4D为本发明实施例中隧道建立的第九流程图;
图 4E为本发明实施例中隧道建立的第十流程图;
图 5 A为本发明实施例中隧道建立的第十一流程图;
图 5B为本发明实施例中隧道建立的第十二流程图
图 6为本发明实施例中隧道建立装置的示意图。 具体实施方式
为了解决现有技术中存在的用户数据包传输时延较大、 用户数据包丢失 的可能性较高, 或者, 核心网瘫痪的问题, 本发明实施例中, 通过根据获取 待建立隧道的类型信息来建立核心网用户面节点和辅接入网节点之间的隧 道, 在不同的隧道建立方式中进行切换, 避免了当辅接入网节点和主接入网 节点之间的骨干网出现拥塞时, 辅接入网节点和核心网用户面节点之间的隧 道继续通过主接入网节点进行转接, 这样, 就降低了辅接入网节点和主接入 网节点之间的骨干网的拥塞, 减小了用户数据包传输时延, 及降低了用户数 据包丢失, 或者, 避免了当核心网控制面节点需要收发的路径切换信令过多 时, 辅接入网节点和核心网用户面节点之间的隧道为直连的隧道, 这样, 就 避免了核心网控制面节点需要收发的路径切换信令过多导致的核心网的瘫 痪。
下面结合附图对本发明优选的实施方式进行详细说明。
参阅图 2所示, 本发明实施例中, 隧道建立的详细流程如下: 实施例一:
步骤 200: 接收核心网控制面节点发送的第一隧道建立请求, 其中, 第一 隧道建立请求是核心网控制面节点在接收到核心网用户面节点发送的第二隧 道建立请求后发送的;
步骤 210: 获取待建立隧道的类型信息;
步骤 220: 根据第一隧道建立请求, 基于待建立隧道的类型信息, 建立核 心网用户面节点和辅接入网节点之间的隧道。
本发明实施例中, 第一隧道建立请求和第二隧道建立请求中携带的内容 可以相同也可以不同。
本发明实施例中, 在步骤 200 中, 触发核心网控制面节点发送第一隧道 建立请求的条件有多种, 例如, 可以是在核心网用户面节点确定终端要和核 心网进行业务交互时, 核心网用户面节点向核心网控制面节点发送第二隧道 建立请求, 然后, 核心网控制面节点在接收到第二隧道建立请求后, 发送第 一隧道建立请求, 还要其他方式, 在此不再进行——详述。
本发明实施例中, 获取待建立隧道的类型信息的方式有多种:
例如, 先接收隧道类型指示消息, 然后, 从隧道类型指示消息中解析出 待建立隧道的类型信息, 其中, 隧道类型指示消息可以是 OAM ( Operation Administration and Maintenance, 操作管理和维护) 系统发送的, 也可以是核 心网用户面节点发送的 , 还可以是核心网控制面节点发送的。
OAM, 或者核心网用户面节点, 或者核心网控制面节点发送隧道类型指 示消息时, 可以根据网络负荷信息确定待建立隧道的类型信息, 然后, 将确 定的待建立隧道的类型信息添加在隧道类型指示消息中, 然后, 进行发送。
在从隧道类型指示消息中解析出待建立隧道的类型信息的这种方式中, 接收隧道类型指示消息可以是在接收到核心网控制面节点发送的第一隧道建 立请求之前, 也可以是在接收到核心网控制面节点发送的第一隧道建立请求 之后。
又例如, 从核心网控制面节点发送的第一隧道建立请求中解析出待建立 隧道的类型信息, 其中, 隧道类型信息是核心网用户面节点或者核心网控制 面节点根据网络负荷信息确定的。
在该种方式下, 由于核心网用户面节点向核心网控制面节点发送第二隧 道建立请求后, 核心网控制面节点才发送第一隧道建立请求, 因此, 可以在 核心网用户面节点在向核心网控制面节点发送第二隧道建立请求时, 将待建 立隧道的类型信息添加在第二隧道建立请求中, 核心网控制面节点在接收到 第二隧道建立请求中后将待建立隧道的类型信息添加在第一隧道建立请求 中; 也可以是, 第二隧道建立请求中没有待建立隧道的类型信息, 核心网控 制面节点在发送第一隧道建立请求时, 将待建立隧道的类型信息添加在第一 隧道建立请求中的。
还例如, 获取网络负荷信息, 并根据网络负荷信息确定待建立隧道的类 型信息。
在上述的几种方式中, 无论是哪个节点来确定的网络负荷信息, 网络负 荷信息都可以包括: 辅接入网节点与主接入网节点之间已建立隧道的数据负 荷, 核心网控制面节点的路径切换信令负荷中的一种或者任意组合。
在上述过程中, 当非首次建立隧道时, 隧道类型信息才是确定的主体根 据网络负荷信息确定的, 在首次建立隧道时, 由于还没有产生网络负荷信息, 确定的主体可以根据运营商的预先配置确定隧道类型信息。
本发明实施例中,步骤 200-220的执行主体还要向待建立隧道的类型信息 的确定主体发送携带支持的隧道类型信息的能力指示消息, 然后, 确定待建 立隧道的类型信息的主体才可以根据支持的隧道类型信息及运营商的预先配 置确定待建立隧道的类型信息。
例如, 若待建立隧道的类型信息从隧道类型指示消息中获取, 在接收隧 道类型指示消息之前, 向 OAM系统, 或者核心网用户面节点, 或者核心网控 制面节点发送携带支持的隧道类型信息的能力指示消息;
若根据第一隧道建立请求获取待建立隧道的类型信息, 在接收第一隧道 建立请求之前, 向核心网用户面节点, 或者核心网控制面节点发送携带支持 的隧道类型信息的能力指示消息。
例如, 以隧道类型指示消息可以是 OAM发送的, 步骤 200-220的执行主 体为主接入网节点为例进行说明。主接入网节点在开机后, 向 OAM发送携带 支持的隧道类型信息的能力指示消息, 然后, OAM向主接入网节点发送根据 运营商的预先配置确定的隧道类型信息, 在后续的过程中, OAM才可能根据 网络负荷信息确定待建立隧道的类型信息, 进而将根据网络负荷信息确定待 建立隧道的类型信息, 携带在隧道类型指示消息中发送。
其中, 在获取网络负荷时, 可以是主动进行检测获取的, 也可以是接收 其他节点发来的, 例如, 获取的辅接入网节点与主接入网节点之间已建立隧 道的数据负荷可以是, 当辅接入网节点和主接入网节点之间已建立隧道的数 据负荷 (例如, 用户数据流量) 达到第一预设门限值之后, 辅接入网节点或 者主接入网节点主动将该数据负荷上报, 也可以是, 周期性查看辅接入网节 点与主接入网节点之间已建立隧道的数据负荷, 进而获取该数据负荷。
例如, 获取的核心网控制面节点的路径切换信令负荷可以是, 当核心网 控制面节点的路径切换信令负荷达到第一预设门限值之后, 核心网控制面节 点主动将路径切换信令负荷上报, 也可以是, 周期性查看核心网控制面节点 的路径切换信令负荷, 进而获取该路径切换信令负荷。
例如, 0 AM获取的网络负荷, 可以在辅接入网节点确定辅接入网节点和 主接入网节点之间已建立隧道的数据负荷超过第一预设门限值时, 辅接入网 节点将该网络负荷上报至 OAM。
本发明实施例中, 待建立隧道的类型信息可以为多种, 例如, 可以是允 许为辅接入网节点终结来自于核心网用户面节点的隧道, 或者, 可以是禁止 为辅接入网节点终结来自于核心网用户面节点的隧道。
本发明实施例中, 建立核心网用户面节点和辅接入网节点之间的隧道的 方式有多种, 例如, 建立核心网用户面节点和主接入网节点之间的第一隧道, 及建立辅接入网节点和主接入网节点之间的第二隧道; 例如, 建立核心网用 户面节点和辅接入网节点之间的第三隧道。 本发明实施例中, 建立核心网用户面节点和主接入网节点之间的第一隧 道的方式有多种, 可选的, 从接收到的第一隧道建立请求中获取核心网用户 面节点分配的隧道端点对应的第一隧道信息, 并将主接入网节点分配的隧道 端点对应的第二隧道信息发送至核心网用户面节点, 其中, 若步骤 200-220 的执行主体为主接入网节点,按照上述操作即可, 若步骤 200-220的执行主体 不是主接入网节点, 则从接收到的第一隧道建立请求中获取核心网用户面节 点分配的隧道端点对应的第一隧道信息后, 还要将该第一隧道信息发送至主 接入网节点。
同理, 本发明实施例中, 建立辅接入网节点和主接入网节点之间的第二 隧道的方式有多种, 可选的, 将主接入网节点分配的隧道端点对应的第三隧 道信息发送至辅接入网节点; 接收辅接入网节点分配的隧道端点对应的第四 隧道信息, 其中, 若步骤 200-220的执行主体为主接入网节点, 按照上述操作 即可, 若步骤 200-220的执行主体不是主接入网节点, 则接收辅接入网节点分 配的隧道端点对应的第四隧道信息后, 还要将该第四隧道信息发送至主接入 网节点。
同上述建立第一隧道, 或者第二隧道的方式类似, 本发明实施例中, 建 立核心网用户面节点和辅接入网节点之间的第三隧道的方式也有多种, 可选 的, 从接收到的第一隧道建立请求中获取核心网用户面节点分配的隧道端点 对应的第一隧道信息, 并将第一隧道信息发送至辅接入网节点; 接收辅接入 网节点分配的隧道端点对应的第四隧道信息, 并将第四隧道信息发送至核心 网用户面节点。
本发明实施例中, 每一个隧道信息中至少包括: IP ( Internet Protocol, 互 联网协议)地址信息和 TEID ( Tunnel Endpoint Identifier, 隧道端点标识信息)。
为了更好地理解本发明实施例, 以下给出具体应用场景, 针对建立隧道 的过程, 作出进一步详细描述, 其中, 执行主体以 eNB为例进行说明 (主接 入网节点为 eNB、 辅接入网节点为 SCN、 核心网用户面节点为 SGW、 核心网 控制面节点为 MME ): 实施例二:
(具体如图 3A所示, OAM向 eNB发送隧道类型指示消息, 且首次建立 隧道):
步骤 300: eNB开机后向 OAM上报携带本节点支持的隧道类型信息的能 力指示消息;
本步骤中, 该携带支持的隧道类型信息的能力指示消息表示, 本 eNB可 以建立第一隧道和第二隧道, 和 /或可以建立第三隧道。
步骤 310: OAM根据运营商预先设置向 eNB发送隧道类型指示消息; 本步骤中, 隧道类型指示消息携带了待建立隧道的类型信息, 表示 OAM 允许该 eNB为 SCN终结来至于 SGW的隧道, 即建立第一隧道和第二隧道。
步骤 320: SGW确定核心网和终端需要进行数据交互时, 向 MME发送 第二隧道建立请求, MME在接收到第二隧道建立请求后, 向 eNB发送第一 隧道建立请求;
该步骤中, SGW发送的第二隧道建立请求中携带 SGW分配的隧道端点 对应的用于接收上行数据的第一隧道信息(即 TE— SGW— UL ),该 TE— SGW— UL 包括隧道端点的 IP地址信息和隧道端点的标识信息。
步骤 330: eNB根据接收到的 OAM发送的隧道类型指示消息, 建立 eNB 和 SGW之间的第一隧道, 及建立 eNB和 SCN之间的第二隧道。
在该步骤中, 也可以先建立第二隧道, 再建立第一隧道, 具体如图 3B所 示, 在此不再进行详述。
在实际应用中, 首次建立隧道时, OAM可以向 eNB发送的隧道类型指 示消息中携带建立第一隧道和第二隧道的信息, 也可以携带建立第三隧道的 信息, 此时, 步骤 330就更改为: eNB根据接收到的 OAM发送的隧道类型 指示消息建立 SGW和 SCN之间的第三隧道的信息, 具体如图 3C所示。
在实施例二中, 在建立首次隧道之后, 只要 OAM不再向 eNB发送隧道 类型指示消息, 则在这段时间内, eNB 在接收到隧道建立请求消息后, 均按 照步骤 330执行。 由于每一次隧道的建立都是针对每个终端的每个业务而言的, 因此, 在 每个业务完成后, 所建立的隧道也就释放了。 在实施例二之后, 在实际应用 中 , OAM如需要指示 eNB建立的隧道类型发生变化 , 此时, 就要向 eNB发 送隧道类型指示消息, 下面以实施例三进行说明。
实施例三(具体如图 3D所示, OAM向 eNB发送隧道类型指示消息, 非 首次建立隧道)::
步骤 3000: OAM向 eNB发送携带建立第三隧道的隧道类型指示消息; 该步骤中,可以是 SCN与 eNB之间已建立隧道的数据负荷超过第一预设 门限后, 主动向 OAM上报该情况, 也可以是 eNB向 OAM上报, OAM在接 收到该情况后, 发送隧道类型指示消息。
步骤 3100: SGW确定核心网和终端需要进行数据交互时, 向 MME发送 第二隧道建立请求, MME在接收到第二隧道建立请求后, 向 eNB发送第一 隧道建立请求;
步骤 3200: eNB根据接收到的 OAM发送的隧道类型指示消息,建立 SCN 和 SGW之间的第三隧道。
在本实施例中, eNB 先接收 OAM发送的隧道类型指示消息, 再接收 MME向 eNB发送的第一隧道建立请求;也可以是, eNB先接收 MME向 eNB 发送的第一隧道建立请求,再接收 OAM发送的隧道类型指示消息, 具体如图 3E所示, 也就是说在实施例三中, 可以先执行步骤 3000与步骤 3100 , 再执 行步骤 3200, 也可以先执行步骤 3200, 再执行步骤 3000与步骤 3100。
实施例二和实施例三是以 OAM向 eNB发送隧道类型指示消息为例, 在 实际应用中, 可以是核心网用户面节点, 如 SGW向 eNB发送隧道类型指示 消息, 也可以是核心网控制面节点, 如 MME向 eNB发送隧道类型指示消息。 在此不再进行 详述。
上述实施例中在通知 eNB建立隧道的类型时, 均在隧道类型指示消息中 携带待建立隧道的类型信息, 并将该隧道类型指示消息发送至 eNB, 在实际 应用中, 也可以将待建立隧道的类型信息携带在第一隧道建立请求中, eNB 从第一隧道建立请求中获取待建立隧道的类型信息, 进而确定是建立第一隧 道和第二隧道, 还是直接建立第三隧道。
下面以 MME将待建立隧道的类型信息携带在第一隧道类型指示消息中 通知 eNB为例进行说明。
实施例四: (具体如图 4A所示, 首次建立隧道)
步骤 400: eNB开机后向 MME上报携带本节点支持的隧道类型信息的能 力指示消息;
本步骤中, 该携带本节点支持的隧道类型信息的能力指示消息表示, 本 eNB具有为 SCN终结来至于 SGW的隧道的能力,建立第一隧道和第二隧道。
步骤 410: SGW确定核心网与终端需要进行数据交互时, 向 MME发送 第二隧道建立请求, MME在接收到第二隧道建立请求后, 向 eNB发送第一 隧道建立请求;
该步骤中第一隧道建立请求不仅携带了 eNB建立隧道的类型信息, 还携 带了 SGW分配的用于接收上行数据的隧道端点对应的第一隧道信息。
步骤 420: eNB基于接收到的第一隧道建立请求, 建立第一隧道和第二隧 道。
在实施例四中, 在首次建立隧道之后, 只要 MME不再向 eNB发送携带 的隧道类型信息变化的隧道类型指示消息, 或者, 是不再向 eNB发送隧道类 型指示消息, 则在这段时间内, eNB 在接收到第一隧道建立请求消息后, 均 按照步骤 420进行执行。
由于每一次隧道的建立都是针对每个终端的每个业务而言的, 因此, 在 每个业务完成后, 所建立的隧道也就释放了。 在实施例四之后, 在实际应用 中, 在再次建立隧道时, MME有可能指示 eNB建立第三隧道, 而不是第一 隧道和第二隧道, 下面以实施例五进行说明。
实施例五 (具体如图 4B所示, 非首次建立隧道):
步骤 4000: SGW确定核心网和终端需要进行数据交互时, 向 MME发送 第二隧道建立请求, MME在接收到第二隧道建立请求后, 向 eNB发送第一 隧道建立请求;
在该步骤中, MME要确定在第一隧道建立请求指示中携带的待建立隧道 的类型信息为第三隧道的信息;其中, MME接收 SCN上报的消息,确定 SCN 与 e B之间已建立隧道的数据负荷超过第一预设门限。 在实际应用中, 可以 是 SCN在与 eNB之间已建立隧道的数据负荷超过第一预设门限后, 主动向 MME上报该情况, 也可以是 eNB向 MME上报。
在该步骤中, MME将建立第三隧道的类型信息添加到第一隧道建立请求 中, 同时, 第一隧道建立请求中, 还携带 SGW分配的用于接收上行数据的第 一隧道信息。
步骤 4100: eNB根据接收到的 MME发送的第一隧道建立请求,建立 SCN 和 SGW之间的第三隧道。
实施例四和实施例五均以 MME为例进行说明,在实际应用中,也可以是 核心网用户面节点, 如 SGW在发送第二隧道建立请求时, 如图 4C (先建立 第二隧道, 再建立第一隧道)、 4D (先建立第二隧道, 再建立第一隧道)、 4E (先建立第一隧道, 再建立第二隧道) 所示, 在该第二隧道建立请求中添加 待建立隧道的类型信息, 过程与实施例四和实施例五类似, 在此不再进行一 一详述。
在实际应用中, 在获取待建立隧道的类型信息时, 也可以是直接获取网 络负荷信息, 并根据网络负荷信息确定待建立隧道的类型信息, 下面以 eNB 获取网络负荷信息为例进行说明。
实施例六 (具体如图 5A所示 )··
步骤 500: eNB接收 MME发送的第一隧道建立请求;
步骤 510: eNB接收到 MME上报的携带路径切换信令负荷超过第二预设 门限值的消息;
在该步骤中, 也可以是 eNB实时检测 MME的路径切换信令负荷。
步骤 520: eNB根据 MME上报的消息, 建立第一隧道和第二隧道。 在实际应用中, 也可以是先建立第一隧道, 再建立第二隧道, 如图 5B所 参阅图 6 所示, 本发明实施例提供一种隧道建立的装置, 该装置主要包 括:
接收隧道建立请求模块 600,用于接收核心网控制面节点发送的第一隧道 建立请求, 其中, 第一隧道建立请求是核心网控制面节点在接收到核心网用 户面节点发送的第二隧道建立请求后发送的;
获取隧道类型模块 610, 用于获取待建立隧道的类型信息;
建立隧道模块 620, 用于根据第一隧道建立请求,基于待建立隧道的类型 信息, 建立核心网用户面节点和辅接入网节点之间的隧道。
可选的, 本发明实施例中, 获取隧道类型模块 610具体用于:
接收 OAM系统, 或者核心网用户面节点, 或者核心网控制面节点发送的 隧道类型指示消息, 并从隧道类型指示消息中解析出待建立隧道的类型信息; 其中, 待建立隧道的类型信息分别是 OAM, 或者核心网用户面节点, 或者核 心网控制面节点根据网络负荷信息确定的。
可选的, 本发明实施例中, 获取隧道类型模块 610还可以具体用于: 从第一隧道建立请求中解析出待建立隧道的类型信息;
其中, 从第一隧道建立请求中获取的隧道类型信息是核心网控制面节点, 或者核心网用户面节点根据网络负荷信息确定的。
可选的, 本发明实施例中, 获取隧道类型模块 610还可以具体用于: 若根据隧道类型指示消息获取待建立隧道的类型信息, 在接收隧道类型 指示消息之前, 向 OAM系统, 或者核心网用户面节点, 或者核心网控制面节 点发送携带支持的隧道类型信息的能力指示消息;
若根据第一隧道建立请求获取待建立隧道的类型信息, 在接收第一隧道 建立请求之前, 向核心网用户面节点, 或者核心网控制面节点发送携带支持 的隧道类型信息的能力指示消息。
本发明实施例中, 获取隧道类型模块 610还可以具体用于:
获取网络负荷信息, 并根据网络负荷信息确定待建立隧道的类型信息。 本发明实施例中, 确定获取隧道类型模块 610获取的待建立隧道的类型 信息的网络负荷信息包括多种信息, 可选的, 辅接入网节点与主接入网节点 之间已建立隧道的数据负荷; 和 /或,核心网控制面节点的路径切换信令负荷。
本发明实施例中, 可选的, 获取隧道类型模块获取的待建立隧道的类型 信息是允许为辅接入网节点终结来自于核心网用户面节点的隧道, 或者, 是 禁止为辅接入网节点终结来自于核心网用户面节点的隧道。
可选的, 本发明实施例中, 建立隧道模块 620具体用于:
建立核心网用户面节点和主接入网节点之间的第一隧道, 及建立辅接入 网节点和主接入网节点之间的第二隧道; 或者, 建立核心网用户面节点和辅 接入网节点之间的第三隧道。
本发明实施例中, 在建立第一隧道时, 可选的, 建立隧道模块 620具体 用于:
从接收到的第一隧道建立请求中获取核心网用户面节点分配的隧道端点 对应的第一隧道信息, 并将主接入网节点分配的隧道端点对应的第二隧道信 息发送至核心网用户面节点。
本发明实施例中, 在建立第二隧道时, 可选的, 建立隧道模块 620具体 用于:
将主接入网节点分配的隧道端点对应的第三隧道信息发送至辅接入网节 点, 并接收辅接入网节点分配的隧道端点对应的第四隧道信息。
本发明实施例中, 在建立第三隧道时, 可选的, 建立隧道模块 620具体 用于:
从接收到的第一隧道建立请求中获取核心网用户面节点分配的隧道端点 对应的第一隧道信息, 并将第一隧道信息发送至辅接入网节点; 接收辅接入 网节点分配的隧道端点对应的第四隧道信息, 并将第四隧道信息发送至核心 网用户面节点。
综上所述, 本发明实施例中, 提出一种隧道建立的方法, 接收核心网控 制面节点发送的第一隧道建立请求, 其中, 第一隧道建立请求是核心网控制 面节点在接收到核心网用户面节点发送的第二隧道建立请求后发送的; 获取 待建立隧道的类型信息; 根据第一隧道建立请求, 基于待建立隧道的类型信 息, 建立核心网用户面节点和辅接入网节点之间的隧道, 这样, 即使执行步 骤 200-220的执行主体不发生变化,针对终端的每一个业务建立的隧道的类型 可以相同, 也可以不同, 例如, 针对终端的这一个业务可以建立第一隧道和 第二隧道, 针对终端的下一个业务可以建立第三隧道, 这样, 就降低了辅接 入网节点和主接入网节点之间的骨干网的拥塞, 减小了用户数据包传输时延, 及降低了用户数据包丟失, 或者, 避免了当核心网控制面节点需要收发的路 径切换信令过多时, 辅接入网节点和核心网用户面节点之间建立的隧道为直 连的隧道, 这样, 就避免了核心网控制面节点需要收发的路径切换信令过多 导致的核心网的瘫痪。
本发明是参照根据本发明实施例的方法、 设备(系统) 、 和计算机程序 产品的流程图和 /或方框图来描述的。 应理解可由计算机程序指令实现流程 图和 /或方框图中的每一流程和 /或方框、 以及流程图和 /或方框图中的流 程和 /或方框的结合。 可提供这些计算机程序指令到通用计算机、 专用计算 机、 嵌入式处理机或其它可编程数据处理设备的处理器以产生一个机器, 使 得通过计算机或其它可编程数据处理设备的处理器执行的指令产生用于实现 在流程图一个流程或多个流程和 /或方框图一个方框或多个方框中的功能的 装置。
这些计算机程序指令也可存储在能引导计算机或其它可编程数据处理设 备以特定方式工作的计算机可读存储器中, 使得存储在该计算机可读存储器 中的指令产生包括指令装置的制造品, 该指令装置实现在流程图一个流程或 多个流程和 /或方框图一个方框或多个方框中的功能。
这些计算机程序指令也可装载到计算机或其它可编程数据处理设备上, 使得在计算机或其它可编程设备上执行一系列操作步骤以产生计算机实现的 处理, 从而在计算机或其它可编程设备上执行的指令提供用于实现在流程图 一个流程或多个流程和 /或方框图一个方框或多个方框中的功能的步骤。 尽管已描述了本发明的上述实施例, 但本领域内的技术人员一旦得知了 基本创造性概念, 则可对这些实施例作出另外的变更和修改。 所以, 所附权 利要求意欲解释为包括上述实施例以及落入本发明范围的所有变更和修改。
显然, 本领域的技术人员可以对本发明实施例进行各种改动和变型而不 脱离本发明实施例的精神和范围。 这样, 倘若本发明实施例的这些修改和变 型属于本发明权利要求及其等同技术的范围之内, 则本发明也意图包含这些 改动和变型在内。

Claims

权 利 要 求
1、 一种隧道建立的方法, 其特征在于, 包括:
接收核心网控制面节点发送的第一隧道建立请求, 其中, 所述第一隧道 建立请求是所述核心网控制面节点在接收到核心网用户面节点发送的第二隧 道建立请求后发送的;
获取待建立隧道的类型信息;
根据所述第一隧道建立请求, 基于所述待建立隧道的类型信息, 建立所 述核心网用户面节点和所述辅接入网节点之间的隧道。
2、如权利要求 1所述的方法, 其特征在于, 获取待建立隧道的类型信息, 包括:
接收操作管理和维护 OAM系统, 或者所述核心网用户面节点, 或者所述 核心网控制面节点发送的隧道类型指示消息, 并
从所述隧道类型指示消息中解析出待建立隧道的类型信息;
其中, 所述待建立隧道的类型信息分别是所述 OAM, 或者所述核心网用 户面节点, 或者所述核心网控制面节点根据网络负荷信息确定的。
3、如权利要求 1所述的方法, 其特征在于, 获取待建立隧道的类型信息, 包括:
从所述第一隧道建立请求中解析出待建立隧道的类型信息;
其中, 从所述第一隧道建立请求中获取的隧道类型信息是所述核心网控 制面节点, 或者所述核心网用户面节点根据网络负荷信息确定的。
4、 如权利要求 2或 3所述的方法, 其特征在于, 若根据所述隧道类型指 示消息获取待建立隧道的类型信息, 在接收所述隧道类型指示消息之前, 向 所述 OAM系统 , 或者所述核心网用户面节点, 或者所述核心网控制面节点发 送携带支持的隧道类型信息的能力指示消息;
若根据所述第一隧道建立请求获取待建立隧道的类型信息, 在接收所述 第一隧道建立请求之前, 向所述核心网用户面节点, 或者所述核心网控制面 节点发送携带支持的隧道类型信息的能力指示消息。
5、如权利要求 1所述的方法, 其特征在于, 获取待建立隧道的类型信息, 包括:
获取网络负荷信息, 并
根据所述网络负荷信息确定待建立隧道的类型信息。
6、 如权利要求 1-5任一项所述的方法, 其特征在于, 待建立隧道的类型 信息是允许为辅接入网节点终结来自于核心网用户面节点的隧道, 或者, 是 禁止为辅接入网节点终结来自于核心网用户面节点的隧道。
7、 如权利要求 2-6任一项所述的方法, 其特征在于, 所述网络负荷信息 包括:
所述辅接入网节点与主接入网节点之间已建立隧道的数据负荷; 和 /或 所述核心网控制面节点的路径切换信令负荷。
8、 如权利要求 1-7任一项所述的方法, 其特征在于, 建立所述核心网用 户面节点和所述辅接入网节点之间的隧道, 包括:
建立所述核心网用户面节点和所述主接入网节点之间的第一隧道, 及建 立所述辅接入网节点和所述主接入网节点之间的第二隧道; 或者
建立所述核心网用户面节点和所述辅接入网节点之间的第三隧道。
9、 如权利要求 8所述的方法, 其特征在于, 建立所述核心网用户面节点 和所述主接入网节点之间的第一隧道, 包括:
从接收到的所述第一隧道建立请求中获取所述核心网用户面节点分配的 隧道端点对应的第一隧道信息, 并
将所述主接入网节点分配的隧道端点对应的第二隧道信息发送至所述核 心网用户面节点。
10、 如权利要求 8 所述的方法, 其特征在于, 建立所述辅接入网节点和 所述主接入网节点之间的第二隧道, 包括:
将所述主接入网节点分配的隧道端点对应的第三隧道信息发送至所述辅 接入网节点, 并 接收所述辅接入网节点分配的隧道端点对应的第四隧道信息。
11、 如权利要求 8 所述的方法, 其特征在于, 建立所述核心网用户面节 点和所述辅接入网节点之间的第三隧道, 包括:
从接收到的所述第一隧道建立请求中获取所述核心网用户面节点分配的 隧道端点对应的第一隧道信息, 并将所述第一隧道信息发送至所述辅接入网 节点;
接收所述辅接入网节点分配的隧道端点对应的第四隧道信息, 并将所述 第四隧道信息发送至所述核心网用户面节点。
12、 一种隧道建立的装置, 其特征在于, 包括:
接收隧道建立请求模块, 用于接收核心网控制面节点发送的第一隧道建 立请求, 其中, 所述第一隧道建立请求是所述核心网控制面节点在接收到核 心网用户面节点发送的第二隧道建立请求后发送的;
获取隧道类型模块, 用于获取待建立隧道的类型信息;
建立隧道模块, 用于根据所述第一隧道建立请求, 基于所述待建立隧道 的类型信息, 建立所述核心网用户面节点和所述辅接入网节点之间的隧道。
13、 如权利要求 12所述的装置, 其特征在于, 所述获取隧道类型模块具 体用于:
接收操作管理和维护 OAM系统, 或者所述核心网用户面节点, 或者所述 核心网控制面节点发送的隧道类型指示消息, 并从所述隧道类型指示消息中 解析出待建立隧道的类型信息; 其中, 所述待建立隧道的类型信息分别是所 述 OAM, 或者所述核心网用户面节点, 或者所述核心网控制面节点根据网络 负荷信息确定的。
14、 如权利要求 12所述的装置, 其特征在于, 所述获取隧道类型模块具 体用于:
从所述第一隧道建立请求中解析出待建立隧道的类型信息;
其中, 从所述第一隧道建立请求中获取的隧道类型信息是所述核心网控 制面节点, 或者所述核心网用户面节点根据网络负荷信息确定的。
15、 如权利要求 13或 14所述的装置, 其特征在于, 所述获取隧道类型 模块具体用于:
若根据所述隧道类型指示消息获取待建立隧道的类型信息, 在接收所述 隧道类型指示消息之前, 向所述 OAM系统, 或者所述核心网用户面节点, 或 者所述核心网控制面节点发送携带支持的隧道类型信息的能力指示消息; 若根据所述第一隧道建立请求获取待建立隧道的类型信息, 在接收所述 第一隧道建立请求之前, 向所述核心网用户面节点, 或者所述核心网控制面 节点发送携带支持的隧道类型信息的能力指示消息。
16、 如权利要求 12所述的装置, 其特征在于, 所述获取隧道类型模块具 体用于:
获取网络负荷信息, 并根据所述网络负荷信息确定待建立隧道的类型信 息。
17、 如权利要求 12-16任一项所述的装置, 其特征在于, 所述获取隧道类 型模块获取的待建立隧道的类型信息是允许为辅接入网节点终结来自于核心 网用户面节点的隧道, 或者, 是禁止为辅接入网节点终结来自于核心网用户 面节点的隧道。
18、 如权利要求 13-17任一项所述的装置, 其特征在于, 确定所述获取隧 道类型模块获取的待建立隧道的类型信息的网络负荷信息包括:
所述辅接入网节点与主接入网节点之间已建立隧道的数据负荷; 和 /或 所述核心网控制面节点的路径切换信令负荷。
19、 如权利要求 12-18任一项所述的装置, 其特征在于, 所述建立隧道模 块具体用于:
建立所述核心网用户面节点和所述主接入网节点之间的第一隧道, 及建 立所述辅接入网节点和所述主接入网节点之间的第二隧道; 或者, 建立所述 核心网用户面节点和所述辅接入网节点之间的第三隧道。
20、 如权利要求 19所述的装置, 其特征在于, 所述建立隧道模块具体用 于: 从接收到的所述第一隧道建立请求中获取所述核心网用户面节点分配的 隧道端点对应的第一隧道信息, 并将所述主接入网节点分配的隧道端点对应 的第二隧道信息发送至所述核心网用户面节点。
21、 如权利要求 19所述的装置, 其特征在于, 所述建立隧道模块具体用 于:
将所述主接入网节点分配的隧道端点对应的第三隧道信息发送至所述辅 接入网节点, 并接收所述辅接入网节点分配的隧道端点对应的第四隧道信息。
22、 如权利要求 19所述的装置, 其特征在于, 所述建立隧道模块具体用 于:
从接收到的所述第一隧道建立请求中获取所述核心网用户面节点分配的 隧道端点对应的第一隧道信息, 并将所述第一隧道信息发送至所述辅接入网 节点; 接收所述辅接入网节点分配的隧道端点对应的第四隧道信息, 并将所 述第四隧道信息发送至所述核心网用户面节点。
PCT/CN2013/081101 2013-08-08 2013-08-08 一种隧道建立的方法及装置 WO2015018038A1 (zh)

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EP20188628.0A EP3787367B1 (en) 2013-08-08 2014-01-26 Tunnel establishment
EP14834913.7A EP3032911B1 (en) 2013-08-08 2014-01-26 Tunnel establishment method and device
CN201480000407.2A CN104904308B (zh) 2013-08-08 2014-01-26 一种隧道建立的方法及装置
KR1020167006192A KR101833397B1 (ko) 2013-08-08 2014-01-26 터널 구축 방법 및 장치
US15/014,984 US10587431B2 (en) 2013-08-08 2016-02-03 Tunnel establishment method and apparatus
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