WO2015113283A1

WO2015113283A1 - Inter-node communication processing method and routing determination node

Info

Publication number: WO2015113283A1
Application number: PCT/CN2014/071813
Authority: WO
Inventors: 廖德甫; 张伟; 彭程晖
Original assignee: 华为技术有限公司
Priority date: 2014-01-29
Filing date: 2014-01-29
Publication date: 2015-08-06
Also published as: CN105594180A; CN105594180B

Abstract

Provided are an inter-node communication processing method and a routing determination node. The method comprises: a routing determination node determines a global virtual identifier of a target end node, the routing determination node being a centralised control unit or an entry point or a function node within a software-defined network, the target end node being a target end node of a routing path transmitting interface data, the global virtual identifier being used for indicating interface information and network information of the target end node; according to the global virtual identifier, the routing determination node determines a network parameter and a routing parameter of a processing node on the routing path, thereby determining, according to the global virtual identifier of the target end node, the routing path transmitting interface data within a new network architecture.

Description

Inter-node communication processing method and route determination node

Technical field

Embodiments of the present invention relate to communication technologies, and in particular, to an inter-node communication processing method and a route determination node. Background technique

In the Evolved Packet Core (EPC) network architecture defined in the 3rd Generation Partnership Project (3GPP) protocol, the Mobility Management Entity (MME) is The control plane function, the PDN Gateway (PGW)/Serving Gateway (SGW) is the bearer plane function, and serves the GPRS Support Node (SGSN), MME, PGW, SGW and other network elements. Both exist as independent physical entities. Taking PGW as an example, the PGW integrates many data plane functions, such as mobile IP, packet filtering, GPRS Tunneling Protocol (GTP) tunnel management, security, billing, etc. There are two main problems: First, these functions are implemented in a physical box in a tightly coupled manner, which is not conducive to the introduction of new functions. Second, the number of functions is fixed in the physical box for configuration according to the specifications of the product. It is wasted when it is used, and it is congested when it is high in traffic.

The prior art proposes a software-defined-network (Software-defined-network, referred to as

SDN) A new network architecture for SDN+ Network Functions Virtualization (NFV), which is designed to separate the design of the bearer. This new network architecture decouples the network entities that are coupled with multiple functions in the EPC network architecture.

However, in the new network architecture, if there are data paths of different communication objects, how to properly route and process various interface data generated in the communication process and reach the target end node, the prior art does not propose a solution. method. Summary of the invention

Embodiments of the present invention provide an inter-node communication processing method and a route determination node, which are used to determine a route for transmitting interface data in a new network architecture according to a global virtual identifier of a target end node. Path.

A first aspect of the present invention provides a method for processing an inter-node communication, including:

The route determining node determines a global virtual identifier of the target end node, where the route determining node is a centralized control unit or an entry point or a function node in the software defined network, and the target end node is a target end node of the routing path of the transport interface data, The global virtual identifier is used to indicate interface information and network information of the target end node;

The route determining node determines network parameters and routing parameters of the processing node on the routing path according to the global virtual identifier.

In a first possible implementation manner of the first aspect, the routing determining node determines, according to the global virtual identifier, a network parameter and a routing parameter of the processing node on the routing path, where: the routing determining node is configured according to the Determining, by the global virtual identifier, a first processing node on the routing path, so that the first processing node determines, according to the received global virtual identifier, network parameters of a second processing node on the routing path The routing parameter, the second processing node is a next hop processing node of the first processing node.

With reference to the first aspect or the first possible implementation manner of the first aspect, in a second possible implementation manner of the first aspect, the network parameter includes a network address, a network identifier, a port number, and a protocol type of the processing node At least one of a service type and a quality parameter;

The routing parameter includes at least one of a network address of the processing node, a network identifier, a port number, a protocol type, a service type, and a quality parameter.

With reference to the first aspect, or any one of the first or second possible implementation manners of the first aspect, in a third possible implementation manner of the first aspect, the global virtual identifier includes an interface type identifier and a global Resource identifier

The interface type identifier includes a standard interface identifier or a custom interface identifier.

According to a third possible implementation manner of the first aspect, in a fourth possible implementation manner of the first aspect, the global resource identifier includes the logical resource identifier information, the physical resource identifier information, and the dynamic resource identifier in the network. At least one of information, group identification information.

According to a third possible implementation manner of the first aspect, in a fifth possible implementation manner of the first aspect, the global resource identifier includes a public land mobile network (PLMN) identifier, an area identifier, a base station identifier, a cell identifier, User equipment identifier and bearer identifier;

Determining, by the route determining node, a path for processing the interface data according to the global virtual identifier The network parameters and routing parameters of the processing node on the path, including:

Determining, by the route determining node, the processing node corresponding to the PLMN identifier according to the PLMN identifier;

Determining, by the route determining node, the processing node in the area where the user equipment is located according to the area identifier;

Determining, by the route determining node, a routing parameter of the target end node according to the interface type identifier; the routing determining node determining, according to the base station identifier and/or the cell identifier, a processing node on a routing path of the interface data ;

The route determining node determines, according to the user equipment identifier and the bearer identifier, a data flow direction of the interface data and a data flow direction on a service granularity.

With reference to the first aspect, or any one of the first to fifth possible implementation manners of the first aspect, in a sixth possible implementation manner of the first aspect, the routing determining node determines a global Virtual logo, including:

The route determining node receives the global virtual identifier configured by the centralized network control unit SNC; or

The route determining node sends a global virtual identifier request message to the SNC, and receives a response message that is sent by the SNC and includes the global virtual identifier; or

The route determining node determines the global virtual identity by self-learning.

With reference to the first aspect, or any one of the first to the sixth possible implementation manners of the first aspect, in the seventh possible implementation manner of the first aspect, the routing determining node determines a global Before the virtual logo, it also includes:

The route determining node receives the interface data.

According to the seventh possible implementation manner of the first aspect, in the eighth possible implementation manner of the first aspect, before the routing determining node receives the interface data, the method further includes:

The route determining node allocates and manages information of the global resource identifier in the global virtual identifier;

The route determining node establishes a correspondence between the global virtual identifier and a processing node in the software-defined network.

According to the eighth possible implementation manner of the first aspect, in the ninth possible implementation manner of the first aspect, the information about the global resource identifier includes: processing corresponding to the global resource identifier At least one of the node information, the network parameter corresponding to the global resource identifier, the routing parameter corresponding to the global resource identifier, and the logical relationship of the global resource identifier.

According to the ninth possible implementation manner of the first aspect, in the tenth possible implementation manner of the first aspect, the processing node information includes: a support capability of the processing node, a processing capability of the processing node, At least one of an operating state of the processing node and a connection state of the processing node;

The logical relationship between the global resource identifier and the upper-level global resource identifier of the global resource identifier or the global resource identifier and the lower-level global resource identifier of the global resource identifier Contains relationships.

A second aspect of the present invention provides a route determining node, including:

a determining module, configured to determine a global virtual identifier of the target end node, where the routing determining node is a centralized control unit or an entry point or a function node in the software-defined network, and the target end node is a target end of the routing path of the transport interface data a node, the global virtual identifier is used to indicate interface information and network information of the target end node;

And a processing module, configured to determine network parameters and routing parameters of the processing node on the routing path according to the global virtual identifier.

In a first possible implementation manner of the second aspect, the processing module is further configured to: determine, according to the global virtual identifier, a first processing node on the routing path, so that the first processing node And determining, according to the received global virtual identifier, a network parameter and a routing parameter of the second processing node on the routing path, where the second processing node is a next hop processing node of the first processing node.

With reference to the second aspect, or the first possible implementation manner of the second aspect, in a second possible implementation manner of the second aspect, the network parameter includes a network address, a network identifier, a port number, and a protocol type of the processing node At least one of a service type and a quality parameter;

With reference to the second aspect, or any one of the first or second possible implementation manners of the second aspect, in a third possible implementation manner of the second aspect, the global virtual identifier includes an interface type identifier and a global Resource identifier

The interface type identifier includes a standard interface identifier or a custom interface identifier. According to a third possible implementation manner of the second aspect, in a fourth possible implementation manner of the second aspect, the global resource identifier includes the logical resource identifier information, the physical resource identifier information, and the dynamic resource identifier in the network. At least one of information, group identification information.

According to a third possible implementation manner of the second aspect, in a fifth possible implementation manner of the second aspect, the global resource identifier includes a public land mobile network (PLMN) identifier, a region identifier, a base station identifier, a cell identifier, User equipment identifier and bearer identifier;

The processing module is specifically configured to:

Determining, according to the PLMN identifier, a processing node corresponding to the PLMN identifier;

Determining, according to the area identifier, a processing node in an area where the user equipment is located; determining, according to the interface type identifier, a routing parameter of the target end node;

Determining, according to the base station identifier and/or the cell identifier, a processing node on a routing path of the interface data;

Determining, according to the user equipment identifier and the bearer identifier, a data flow direction of the interface data and a data flow direction on a service granularity.

With reference to the second aspect, or any one of the first to fifth possible implementation manners of the second aspect, in the sixth possible implementation manner of the second aspect, the determining module is specifically configured to: receive the centralized The global virtual identifier configured by the network control unit SNC; or

Sending a global virtual identifier request message to the SNC, and receiving a response message that is sent by the SNC and including the global virtual identifier; or

The global virtual identity is determined by self-learning.

With reference to the second aspect, or any one of the first to the sixth possible implementation manners of the second aspect, in a seventh possible implementation manner of the second aspect, the method further includes:

The receiving module is configured to receive the interface data before the determining module determines the global virtual identifier of the target end node.

According to a seventh possible implementation manner of the second aspect, in an eighth possible implementation manner of the second aspect, the processing module is further configured to: before the receiving module receives the interface data, And managing information about the global resource identifier in the global virtual identifier; establishing a correspondence between the global virtual identifier and a processing node in the software-defined network.

According to the eighth possible implementation manner of the second aspect, in the ninth possible implementation manner of the second aspect, the information about the global resource identifier includes: processing corresponding to the global resource identifier At least one of the node information, the network parameter corresponding to the global resource identifier, the routing parameter corresponding to the global resource identifier, and the logical relationship of the global resource identifier.

According to the ninth possible implementation manner of the second aspect, in the tenth possible implementation manner of the second aspect, the processing node information includes: a support capability of the processing node, a processing capability of the processing node, At least one of an operating state of the processing node and a connection state of the processing node;

A third aspect of the present invention provides a route determining node, including a transmitter, a receiver, a memory, and a processor respectively connected to the transmitter, the receiver, and the memory, wherein the memory stores a set of programs a code, and the processor is configured to invoke program code stored in the memory, to determine a global virtual identifier of the target end node, where the route determination node is a centralized control unit or an entry point or a function node in the software-defined network, The target end node is a target end node of a routing path of the transmission interface data, the global virtual identifier is used to indicate interface information and network information of the target end node; and the routing path is determined according to the global virtual identifier. Process network parameters and routing parameters of the node.

In a first possible implementation manner of the third aspect, the processor is further configured to: determine, according to the global virtual identifier, a first processing node on the routing path, so that the first processing node And determining, according to the received global virtual identifier, a network parameter and a routing parameter of the second processing node on the routing path, where the second processing node is a next hop processing node of the first processing node.

With reference to the third aspect, or the first possible implementation manner of the third aspect, in a second possible implementation manner of the third aspect, the network parameter includes a network address, a network identifier, a port number, and a protocol type of the processing node. At least one of a service type and a quality parameter;

With reference to the third aspect, or any one of the first or the second possible implementation manner of the third aspect, in a third possible implementation manner of the third aspect, the global virtual identifier includes an interface type identifier and a global Resource identifier The interface type identifier includes a standard interface identifier or a custom interface identifier.

According to a third possible implementation manner of the third aspect, in a fourth possible implementation manner of the third aspect, the global resource identifier includes the logical resource identifier information, the physical resource identifier information, and the dynamic resource identifier in the network. At least one of information, group identification information.

According to a third possible implementation manner of the third aspect, in a fifth possible implementation manner of the third aspect, the global resource identifier includes a public land mobile network (PLMN) identity, a region identifier, a base station identifier, a cell identifier, User equipment identifier and bearer identifier;

The processor is further configured to:

Determining, by the PLMN identifier, a processing node corresponding to the PLMN identifier; determining, according to the area identifier, a processing node in an area where the user equipment is located; determining, according to the interface type identifier, a routing parameter of the target end node;

With reference to the third aspect, or any one of the first to fifth possible implementation manners of the third aspect, in a sixth possible implementation manner of the third aspect, the processor is further configured to:

With reference to the third aspect, or any one of the first to sixth possible implementation manners of the third aspect, in a seventh possible implementation manner of the third aspect, the receiver, The interface data is received before determining the global virtual identity of the target end node.

According to the seventh possible implementation of the third aspect, in an eighth possible implementation manner of the third aspect, the processor is further configured to: before the receiver receives the interface data, And managing information about the global resource identifier in the global virtual identifier; establishing a correspondence between the global virtual identifier and a processing node in the software-defined network.

According to an eighth possible implementation of the third aspect, the ninth possible aspect of the third aspect In an implementation manner, the information about the global resource identifier includes: the processing node information corresponding to the global resource identifier, the network parameter corresponding to the global resource identifier, the routing parameter corresponding to the global resource identifier, and the global resource identifier. At least one of the logical relationships.

According to the ninth possible implementation manner of the third aspect, in the tenth possible implementation manner of the third aspect, the processing node information includes: a support capability of the processing node, a processing capability of the processing node, At least one of an operating state of the processing node and a connection state of the processing node;

The inter-node communication processing method and the route determination node provided by the embodiment of the present invention determine the global virtual identifier of the target end node by using the route determination node, and the route determination node may be a centralized control unit or an entry point or a function node in the software-defined network, and the target The end node is a target end node of the routing path for transmitting the interface data, and the global virtual identifier is used to indicate the interface information and the network information of the target end node; the routing determining node determines the network parameter and the routing of the processing node on the routing path according to the global virtual identifier. The parameter determines a routing path for the interface data to be transmitted in the new network architecture according to the global virtual identifier of the target end node. DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, a brief description of the drawings used in the embodiments or the prior art description will be briefly described below. Obviously, the drawings in the following description It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any inventive labor.

Figure 1 is a schematic diagram of a new network architecture of SDN+NFV;

2 is a flowchart of Embodiment 1 of an inter-node communication processing method according to the present invention;

3 is a flowchart of Embodiment 2 of an inter-node communication processing method provided by the present invention;

4 is a flowchart of Embodiment 3 of a method for processing an inter-node communication according to the present invention;

Figure 5 is a schematic diagram of a wireless network deployment in a new network architecture of SDN+NFV;

6 is a schematic diagram of establishing a vertical interface in a new network architecture of SDN+NFV; FIG. 7 is a first embodiment of a route determining node according to the present invention.

FIG. 8 is a second embodiment of a route determining node according to the present invention.

FIG. 9 is a specific embodiment of a route determining node according to a third embodiment of the present invention. In order to make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the following is a description of the embodiments of the present invention. The technical solutions are described in a clear and complete manner, and it is obvious that the described embodiments are a part of the embodiments of the invention, rather than all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

The technical solution of the present invention is based on a novel network architecture of SDN+NFV running on a cloud computing platform and integrating design ideas of SDN control and bearer separation. The new network architecture decouples a network with multiple functions in an EPC network architecture. Entity, Figure 1 is a schematic diagram of the new network architecture of SDN+NFV. As shown in Figure 1, the new SDN+NFV network consists of a centralized network controller (SNC) and a network address translation (Network Address Translation). NAT), distributor, entry, a series of function nodes (Function Nodes, FN for short), and a radio node (Radio Nodes, RN for short) The component splits the function from the PGW to the base station in the EPC network from the original physical device, and is independently deployed in the FNN according to the functional granularity.

FIG. 2 is a flowchart of Embodiment 1 of an inter-node communication processing method according to the present invention. As shown in FIG. 2, the inter-node communication processing method in this embodiment includes:

S101. The route determination node determines a global virtual identifier of the target end node, where the route determination node is a centralized control unit or an entry point or a function node in the software definition network, and the target end node is a target end node of the routing path of the transmission interface data, and the global virtual The interface information and network information used to indicate the target end node are identified.

Specifically, the route determination node of this embodiment may be a function node in an SNC or an entry point or an FNN.

It should be noted that the route determining node in this embodiment may include a source end node for receiving interface data and determining a global virtual identifier, and may also include network parameters for determining a processing node on the routing path according to the global virtual identifier. The parameters of the routing parameters may include: The end node and the node for determining the network parameters and routing parameters of the processing node are the same node in the SDN+NFV new network architecture, and the source node and the node for determining the network parameters and routing parameters of the processing node are SDN+NFV. When different nodes in the new network architecture, the source node needs to send the received interface data and the determined global virtual identifier to the node for determining the network parameters and routing parameters of the processing node.

Since the SDN+NFV new network architecture of the present invention adopts a software-defined manner to realize separation of control and bearer, when the SDN+NFV new network architecture transmits the interface data of the user equipment (User Equipment, UE for short), it is required Determining a routing path for transmitting the interface data, that is, a processing node that the interface data transmission process needs to pass, and the processing node may include an intermediate processing node on the routing path and a target end node of the routing path.

Traditional networks, such as the Long Term Evolution (LTE) interface data defined in the 3GPP protocol, have various sources, purposes, and types of data. For example, the data that may be generated during the handover process are as follows: The non-standard X2 port data directly communicated between the cell and the destination cell. The main application scenarios of the data are the handover between two cells in the same base station. The data and signaling of the handover are communicated through a non-standard X2 port (for example, a private interface). The source processing unit may be a cell entity or a UE entity, and the destination processing unit may be a cell entity or a UE entity. Second, the source cell and the destination cell communicate through the X2 port. The main application scenario of the data is that the X2 port is connected. For the cell handover between the base stations, the data and signaling of the handover may be communicated through the X2 port, and the source processing unit may be a cell entity or a UE entity, and the destination processing unit may be a cell entity or a UE entity; The cell communicates through the S1 port. The main application scenario of this type of data is no X2. For the cell handover between the base stations connected by the port, the data and signaling of the handover may be communicated through the S1 port, and the source processing unit may be a cell entity or a UE entity, and the destination processing unit may be a cell entity or a UE entity; The cell and the destination cell communicate through the S1/S10 interface. The main application scenario of this type of data is cell handover between base stations without X2 port connection. The data and signaling of the handover can be communicated through interfaces such as S1/S10. The end processing unit may be a cell entity or a UE entity, and the destination processing unit may be a cell entity or a UE entity, and may involve a protocol conversion during the handover process, for example, the handover request message may need to be converted from S1 to S10, and then The process of converting S10 into S1.

Taking a simple handover process as an example, the access network side radio resource control entity involved is: an interface control entity located at the base station side, configured to directly process an X2 interface message; and a cell located at the base station side a control entity, configured to process UE entity allocation and creation, etc.; a UE control entity located at the base station side, used for UE context control during handover; and a bearer control entity located at the base station side, used for bearer control in the handover process.

In the relevant network element of the core network, due to the need of the communication peer entity, the corresponding corresponding control entity needs to be created or involved in this process. In addition, on the core network side, a location-based area, such as a location area, may also be needed. The management and control entity of the location area code (LAC) or the Tracking Area Code (TAC).

On the user side, it is a bearer-based data stream, but its data flow may be different from the normal uplink and downlink data stream. During the handover process, it is necessary to keep the synchronization update of the route, for example, the data stream transits through the X2 port (by the source). The base station goes to the destination base station), or transits through the S1 port (from the source base station to the destination base station via the core network).

In the interface communication of the traditional network, the application protocol identifier (the application protocol Identifier, which is referred to as the AP ID and the tunnel endpoint ID (TE ID)) is mainly used in the control plane of the wireless network layer. GTP-U TEID is mainly used in the transmission network layer user plane. GTP-C TEID is mainly used in the transmission network layer control plane. Because it is not aligned and unified, it is often the same process, such as the S1AP ID in the handover process. GTP-C TEID needs to establish a mapping relationship. Therefore, for the new network architecture of SDN+NFV, the following problems exist: First, how to deal with each interface ID in the original tunnel-based communication, how to deal with each in the SDN network. Network nodes, such as the network address of the FNN, are mapped and matched, and need to be reconsidered. Second, the routing control for each interface message is originally based on the tunnel, and is organized in the form of various interface IDs (such as local TE IDs). And carry out data and signaling transit and processing, how to carry out related routing and SDN under the SDN network Need to reconsider.

In the new network architecture of SDN+NFV, control centralized processing, control related signaling and processes can be considered to be carried out inside the centralized control node, only need to consider a small number of SNC and external control interface adaptation, but the main consideration The processing of the user-side related data stream is performed. Therefore, the present invention uses a unified global virtual identifier to replace the interface identifier in the traditional network, so that the SNC can determine the address of the routing node of the interface data through the global virtual identifier. The determination of the route is completed, and for the RN node, since it may be a traditional base station, there may be a complete or part of the radio protocol stack access layer, such as a 3G base station, or an LTE eNodeB. Thus, for the type of source node or the target node is the interface data of the RN, in determining the way When the source node or the target node is considered as the interface adaptation node in the FNN, the interface adaptation node completes the mapping and completion processing of the internal route and the external interface.

The management, transmission, and use of the global virtual identifier in the network may be performed as a whole, or may be split as a whole by certain rules to become a combination of fields, and performed in units of fields, a complete global virtual resource identifier. It is unique within the network, that is, at the same time, there will be no corresponding global virtual resource identifier corresponding to two or more sets of different network parameters (such as IP address, port, etc.), and there will be no two or more global virtual The resource identifier corresponds to the same set of network parameters (such as IP address, port, etc.).

In an embodiment, the global virtual identifier includes an interface type identifier and a global resource identifier; the interface type identifier includes a standard interface identifier or a custom interface identifier.

In an embodiment, the global resource identifier includes at least one of logical resource identifier information, physical resource identifier information, dynamic resource identifier information, and group identifier information in the network.

For example, Table 1 is a possible global virtual identifier. As shown in Table 1, the global virtual identifier includes an interface type identifier and a global virtual resource identifier, where the global virtual resource identifier includes a public land mobile network (Public Land Mobile Network). , abbreviated as PLMN) identity, TAC/LAC identity, base station identity, cell identity, UE identity, and bearer identity.

Table 1

Specifically, the global resource identifier may be an actual radio resource identifier, such as a cell identifier, a base station identifier, a bearer identifier, or may be a virtual resource identifier, such as a measurement identifier used for resource state measurement, or a group for multicast or broadcast. Logo.

The global resource identifier may be an independent global resource identifier or a combined global resource identifier, where the independent global identifier is uniformly allocated and managed within the entire network, and the identifier may have no hierarchical relationship, and the For example, a global UE resource identifier and a global bearer identifier of the UE are the same resource identifiers in the centralized network control unit, and cannot be intuitively obtained according to the global UE identifier and the global bearer identifier. The global resource identifier of the combination has multiple identifier segments in the entire network. Each identifier segment may have duplicate identifiers, but the combined identifiers are globally unique. It includes and is not limited to the following example: For a global cell The identifier is composed of two resource segments, the PLMN identifier and the CELL identifier. For the two global cell identifiers with the same CELL identifier, the PLMN identifiers must be different, and the identifiers of the multiple identifier segments may be allocated by the centralized network control unit. Uniform distribution management, which can also be distributed management according to certain rules, including but not limited to the following example: global cell identifier, which consists of two resource segments, the PLMN identifier and the CELL identifier, which can be used by the centralized network control unit PLMN. The allocation and management of the identity, the processing node corresponding to the PLMN identity performs the allocation and management of the CELL identity under the PLMN.

In an embodiment, S101 may include:

The route determining node receives the global virtual identifier configured by the SNC; or

The route determination node determines the global virtual identity through self-learning.

Specifically, in this embodiment, the route determining node may be an entry point or a function node instead of an SNC.

S102. The route determining node determines, according to the global virtual identifier, a network parameter and a routing parameter of the processing node on the routing path.

Specifically, if the routing path of the data in the network has been statically planned, the processing node on the entire routing path may be determined according to the global virtual identifier of the target end node; if the routing path of the data in the network is dynamically planned, First, the target end node on the routing path is determined according to the global virtual identifier of the target end node, and the intermediate processing node on the routing path is determined by combining network status information, such as load information of the function node, and the processing node may be a logical node. Multiple processing nodes can be deployed on the same physical device and differentiated by related network parameters and resource identifiers.

For example, S102 may include two situations: First, the source routing mode, that is, the route determining node determines network parameters and routing parameters of all processing nodes on the routing path according to the global virtual identifier, as an SNC or an entry point of the execution node or The function node in the FNN can determine the network parameters and routing parameters of all processing nodes on the routing path according to the global virtual identifier. Second, the hop-by-hop routing, the routing determining node determines the routing path on the processing interface data according to the global virtual identifier. a processing node, so that the first processing node determines the network parameter and the routing parameter of the second processing node on the routing path according to the received global virtual identifier, where the second processing node is the first processing node One hop handles the node until the target end node.

In an embodiment, the network parameter includes at least one of a network address of the processing node, a network identifier, a port number, a protocol type, a service type, and a quality parameter; the routing parameter includes a network address of the processing node, a network identifier, a port number, At least one of a protocol type, a service type, and a quality parameter.

In an embodiment, the global resource identifier includes a PLMN identifier, a region identifier, a base station identifier, a cell identifier, a user equipment identifier, and a bearer identifier.

S102 can include:

The route determining node determines the processing node corresponding to the PLMN identifier according to the PLMN identifier; the route determining node determines the processing node in the area where the user equipment is located according to the area identifier; the route determining node determines the routing parameter of the target end node according to the interface type identifier; Determining, by the node, the processing node on the routing path of the interface data according to the base station identifier and/or the cell identifier;

The route determining node determines the data flow direction of the interface data and the data flow direction on the service granularity according to the user equipment identifier and the bearer identifier.

The function of each node in the novel network architecture shown in FIG. 1 will be described below in conjunction with the novel SDN+NFV network architecture shown in FIG. 1 and the technical solution of the present invention.

The centralized controller unit includes two functions: one is centralized processing of the signaling plane, processing user-related signaling (such as user access authentication, mobility, bearer management, etc.), and interaction signaling between network elements (such as Network status information update, network topology maintenance, etc.) Second, centralized control of the user plane, based on the obtained signaling plane information, decision data plane processing rules of user data, including processing path and processing strategy/parameters, etc. Processing rules are passed to the data plane function node.

NAT is essentially a unified interface between the access network and the external data network. The uplink and downlink of data must pass the path, and it is not directly related to whether there is NAT operation. The distribution entity mainly considers that there are multiple entry points. Here, a distribution entity is introduced, which is responsible for distributing the received downlink data to multiple entry point functional entities. The policy of the distribution entity can be configured by default or by the SNC.

The entry point is set to reduce the workload of data rule matching. Here, the function design of the entry point is introduced. The core function of the entry point is to match the data rules and mark them by labeling, and the processing on the subsequent data paths. The function node can directly index to the processing policy, decide the next hop route, etc. according to the label marked by the entry point, according to the route of the data packet on the routing path. Different ways, including source routing and hop-by-hop routing: For source routing, the entry point needs to add the source route identifier at the head of the packet after identifying the processing rule of the packet, and each path on the data path The one-hop processing function identifier is in the source route identifier, as shown in Table 2.

Table 2

Hop1 is the backward forwarding address after the first hop processing function is processed, Hop2 is the backward forwarding address after the second hop processing function is processed, and Hop3 is the backward forwarding address after the third hop processing function is processed. And so on.

The function node is a place where the carrier network and the IP transmission network are essentially different. The functions of the devices in the IP transmission network are the same data forwarding function, which is homogeneous. In the carrier network, the functions provided by the function nodes, Not only the data forwarding of routers/switches, but also many data processing functions. At the same time, functional nodes have processing power (computing, storage), bandwidth, etc. For the processing of data streams, functional nodes also have serial processing and bypass. Different processing methods, such as processing, may have the same processing strategy or different processing strategies in processing the data stream by the function node. For different processing strategies, the SNC needs to be provisioned or delivered one by one. If the pre-configuration method is used, the processing policy indication is required in the packet header, and the function node indicates the index to the data processing policy according to the processing policy. If the data stream has specific processing parameters, the SNC sends the processing parameters to the function node one by one in the process of data stream establishment. The processing strategy mentioned here includes processing methods for the data stream, such as video compression. Time compression mode, compression algorithm, etc., also includes data processing priority; processing parameters, including specific parameters when using a certain processing mode, functional nodes may be directly connected, or may be through an IP network, IP network Internal data forwarding can use SDN or traditional autonomous mode. The function node handles the data stream. There are two methods: serial processing and bypass processing. Serial processing is general traditional data processing. Modes, such as video compression, cross-layer optimization, etc., the modules whose data is compressed or optimized are passed to the next processing node in sequence. When bypass processing, the data needs to be copied into multiple points at a certain node, requiring rules or sources. The routing path label has an indication. For example, Coordinated Multi-Point (COMP), Deep Packet Inspection (DPI) for feedback, network coding, etc.

The air interface node can be a radio remote mode or a complete base station.

In addition, you can also include business processes (Orchestration) in virtualized scenarios, dynamic coordination Resource allocation through Orchestration when resources are being used. When the SNC needs to add or release a function node, the resource is allocated or released through interaction with Orchestration, and the purpose of dynamically utilizing the physical resource has been achieved.

The inter-node communication processing method provided in this embodiment determines the global virtual identifier of the target end node by using the routing determining node, where the routing determining node may be a centralized control unit or an entry point or a function node in the software-defined network, and the target end node is a transmission interface. The target end node of the data routing path, the global virtual identifier is used to indicate the interface information and the network information of the target end node; the route determining node determines the network parameter and the routing parameter of the processing node on the routing path according to the global virtual identifier, and realizes the target according to the target The global virtual identity of the end node determines the routing path through which the interface data is transmitted in the new network architecture.

FIG. 3 is a flowchart of Embodiment 2 of an inter-node communication processing method according to the present invention. As shown in FIG. 3, the inter-node communication processing method in this embodiment includes:

5201. The route determining node receives the interface data.

Specifically, for a vertical interface, a global virtual identifier may be determined at a routing determination node (eg, SNC, Entry for downlink data, RN for uplink data, or functional node in FNN), notably, for uplink and downlink The data stream, especially for the user's business data, may include network-related parameters such as an IP address in the data packet, and then the intermediate route determination may be directly performed by using a related standard process such as OpenFlow's route determination process. For a horizontal interface, the routing determination node can first determine the target end node when initiating the message and then determine its global virtual identity.

5202. The route determining node determines a global virtual identifier of the target end node.

S203. The route determining node determines, according to the global virtual identifier, a network parameter and a routing parameter of the processing node on the routing path.

S204: The route determining node sends the interface data to the next hop processing node.

Specifically, only the intermediate processing node needs to perform corresponding function processing, and then the route is forwarded to the next hop according to the routing information until the target end node is reached, so in the source routing mode, the intermediate processing node is not needed. Make the determination of the route.

It should be noted that when the source node and the node for determining the network parameter and the routing parameter of the processing node are different nodes in the new network architecture of the SDN+NFV, the source node needs to receive the interface data and the determined interface. The global virtual identity is sent to the network parameters used to determine the processing node and The node of the routing parameter.

In the inter-node communication processing method provided by the embodiment, the route determining node receives the interface data, and the route determining node determines the global virtual identifier of the target end node, and the route determining node determines the network parameter of the processing node on the routing path according to the global virtual identifier. The routing parameter, the routing determining node sends the interface data to the next hop processing node, and determines a routing path for the interface data to be transmitted in the new network architecture according to the global virtual identifier of the target end node.

4 is a flowchart of Embodiment 3 of the inter-node communication processing method provided by the present invention. As shown in FIG. 4, the inter-node communication processing method in this embodiment includes:

S301. The route determining node allocates and manages information about the global resource identifier in the global virtual identifier. Specifically, the planning and deployment of the wireless network is performed, the planning and deployment of the relevant resource processing nodes are performed, the setting and adaptation of the relevant resource processing nodes are performed, and the establishment and activation of the related resource processing nodes and resource entities are performed, and the inter-node connection is performed. The establishment of the relationship, etc., the allocation of the global resource identifier is allocated when the global resource is established, and is under the control of the centralized network control unit, and the allocation of the global resource identifier is performed directly or indirectly by the centralized network control unit (for example, authorizing other nodes) And the centralized network control unit can obtain and/or set information of the global resource identifier.

In an embodiment, the information of the global resource identifier includes: at least one of a processing node information corresponding to the global resource identifier, a network parameter corresponding to the global resource identifier, a routing parameter corresponding to the global resource identifier, and a logical relationship of the global resource identifier.

The processing node information includes: at least one of a support capability of the processing node, a processing capability of the processing node, an operating state of the processing node, and a connection state of the processing node;

The logical relationship between the global resource identifier includes an attribute relationship between the global resource identifier and the upper-level global resource identifier of the global resource identifier, or an inclusion relationship between the global resource identifier and the lower-level global resource identifier of the global resource identifier.

The basis of S301 is the deployment and establishment of the global resource processing unit based on the new network architecture of SDN+NFV. Due to the centralized control, the control of the control of the radio resources and the control of the transmission are deployed in the SNC, so for global resources (such as operations) The consideration of the quotient, the consideration of the cell, etc.) The deployment of the processing unit mainly considers the deployment of the RN and the planning and configuration of the functional nodes, such as planning which functional nodes are used to process the relevant network element functions of an operator (such as data). Routing node, RNC/base station L2 node, base station L1 node, etc.), in order to complete the complete wireless network communication network function.

Figure 5 is a schematic diagram of a wireless network deployment in the new network architecture of SDN+NFV, as shown in Figure 5. In Figure 5, there are three wireless networks deployed, namely, wireless network 1, wireless network 2, and wireless network 3. The FNN only identifies the resource pool of the processing node, and the actual deployed path (for example, R1 does not necessarily correspond to the top). The first Entry and the hierarchy (for example, the first box and the second box of the first row of FNN may not be directly related). It does not matter, where R is the routing processing node and F is the functional processing node (such as video compression). Etc.), P represents the processing node of the wireless protocol stack, and I represents the node to which the interface is adapted. The routing node and the function node can be deployed as network nodes shared by multiple wireless networks, and can be moderately adapted according to specific connections and service conditions. Adjustments (for example, load balancing), in which various types of nodes are only logical nodes, and in actual physical deployment, they can be combined with deployment. FIG. 5 is a convenient description of the embodiments, and is described in a separately deployed manner.

Since the RN deploys various forms of base stations/access points (APs), the FNN functions as a node resource pool to handle various functions and complete adaptation with various RNs (base stations/APs), and does not include radio resources. The controlled RN, the control part of the radio resource, can be deployed in the SNC or the FNN. Therefore, the control of the radio resources can be considered to exist in each SNC, FNN, and RN. In addition, the Network Access Server (NAS) and the above control parts are all concentrated in the SNC, and the underlying layers of the wireless protocol stack, such as L1/L2, are deployed in the FNN or the RN.

Description of each of the above networks and deployments:

For the wireless network 1, due to the capability of the cell, etc., the processing resources of the protocol stack are relatively high, and the processing of the intermediate functions is relatively small. Therefore, its node and path plan is that its data flow needs to pass through two routing nodes R1 and R2, and passes through the functional processing node F1 to reach the P1 processing node, and the P1 processing node processes the wireless protocol stack L2 related functions, and the P2 processing node In order to handle the wireless protocol stack radio resource control related functions, P3 is to process the wireless protocol stack L1 related functions, and finally is connected to the RN1 via the interface adaptation node II, and the interface adaptation node may be, for example, a common public radio interface (The Common Public Radio Interface) , referred to as CPRI).

For wireless network 2, since its wireless-related processing is not very demanding, but the intermediate processing function is required to be high, its node and path are planned to have its data stream passing through a routing node R1 and processed through functions. Nodes F1 and F2 arrive at the P1 processing node, and the P1 processing node processes the wireless protocol stack L2 and L1 related functions, and finally connects to RN2 via interface adaptation (for example, CPRI) node II. The network radio protocol stack radio resource control related function is deployed in the SNC.

For wireless network 3, because its network does not require intermediate function processing, and is used to inherit the traditional LTE The base station node eNodeB, so its network only needs to reach the RN3 via the routing node R1 and the interface adaptation (eg S1 port) node.

For each of the above wireless networks, the resource pool node may have a static node, a semi-static node, and a dynamic node, where the static node, such as the RN node and the interface adaptation node, the various base stations/APs deployed, and the corresponding interfaces are suitable. The allocation needs to be determined at the time of network planning; semi-static nodes, such as wireless protocol stack related processing nodes, whose deployed protocol layer processing nodes are not required to be completely determined at the time of planning, but may be in a radio resource entity (eg, a cell) ) Established at the time of confirmation. However, after the wireless resource entity is created and run, the resources are basically determined until the next deletion, and the overall migration and change are not considered. Dynamic nodes, such as function processing nodes and routing nodes, are on the node. The processing units are all data streams, so they are basically completely dynamic and shared, that is, the same location (such as a restaurant), using the same access network (such as China Mobile Network) to perform the same service (such as on-demand video) The nodes that are routed and functioned may be different, and during the process of the service, the routing node and the function processing node may migrate and change due to node load and the like. Therefore, for this kind of dynamic node, only the connectivity (that is, whether the data flow can be from NAT to RN) and the processing capability (such as the approximate resource consumption of function processing) need to be considered in planning, so no need for very detailed node planning. And ok.

S302. The route determining node establishes a correspondence between the global virtual identifier and the processing node in the software-defined network.

The establishment of the global resource processing unit mainly includes establishment of resource entities at various levels, such as establishment of a cell, establishment of a UE context, establishment of a service context/service flow, and the like. At the same time, the SNC needs to complete centralized control of each processing node. That is, for the interface communication, at least the global resource processing node has its global resource processing identifier, which may be a global cell identifier, which may be a global cell identifier (CGI); The UE identifier may be a CGI plus a UE context identifier allocated by the cell processing unit to the UE, but it should be noted that, since it is related to the resource processing entity, the hierarchical relationship, that is, the PLMN/eNB/cell, needs to be reflected here. Equal and unique) The mapping relationship with its node network address.

Since the establishment of each global resource requires the communication of each layer at the same time, the process establishes the vertical interface at the same time. In the establishment of the vertical interface, the main interface is to open the interface from the core network node to the access network node and to the UE, for example, when the cell is established, open the SNC, to the FNN (interface adaptation, function and routing processing, optional Protocol layer processing, etc.), to RN (base stations of various forms) /AP deployment), and to the UE (specific end-to-end layer interface establishment, such as RRC layer, NAS layer signaling, etc.).

For a vertical interface, it is defined as a non-network peer entity or a communication interface between processing units, such as an SI interface between an MME and an eNB, an IUB interface between an RNC and a NodeB, or an RLC layer processing entity and a PDCP layer processing. An interface between the entities, or an interface between the interface of the base station processing unit and the cell processing unit; corresponding to the horizontal interface, which is defined as a communication interface between the network peer entity or the processing unit, for example, S10 between the MMEs Interface, the lur interface between RNCs, the X2 interface between eNodeBs, or the interface between scheduling processing units in CoMP.

The establishment of the vertical interface is to configure and establish the connection relationship between the resources at all levels and the nodes at the upper and lower levels. Figure 6 is a schematic diagram of the establishment of a vertical interface in the new network architecture of SDN+NFV. As shown in Figure 6, the steps of establishing the vertical interface are to activate and connect the network according to the pre-planning and deployment. In Figure 6, respectively There are vertical interfaces at the three nodes FNN1-P1, FNN2-F2 and FNN3-I1, mainly considering the separation of the control plane interface and the user plane interface. At the same time, for network nodes like RN3, the FNN corresponds to The interface adaptation nodes can be separated, that is, the nodes that do not limit the interface adaptation can only be one. In addition, the interface mapping of NAT, distributor, Entry and FNN, because of its dynamic nature, is not actually embodied. The interfaces of Entry and R1 are only schematic. After the establishment of the global resource processing unit and the establishment of the vertical interface, the network should be able to perform user access and various basic services.

The horizontal interface mainly deals with communication between peer network resource processing nodes, such as between base stations, between cells, and the like.

On the horizontal interface, the communication interface between the related control plane resource entities (such as NAS) deployed on the SNC (for example, the S10 interface in the original LTE network) is changed to the internal interface, and other network elements are interposed. The network interface between the node and the RN does not need to establish an IP tunnel like the horizontal interface of the traditional network (for example, the X2 interface). Therefore, in the actual horizontal interface establishment process, only the interface adaptation module part needs to be opened between the RN and the RN. Corresponding interface adaptation (for example, IP tunnel corresponding to X2 port).

S303. The route determining node determines a global virtual identifier of the target end node.

5304. The route determining node determines, according to the global virtual identifier, a network parameter and a routing parameter of the processing node on the routing path.

The inter-node communication processing method provided by this embodiment determines the node allocation and management by routing The information of the global resource identifier in the virtual identifier of the office, the routing determining node establishes a correspondence between the global virtual identifier and the processing node in the software-defined network, and the routing determining node determines the global virtual identifier of the target end node, and the routing determining node may be in the software-defined network. The centralized control unit or the entry point or the function node, the target end node is the target end node of the routing path of the transmission interface data, the global virtual identifier is used to indicate the interface information and the network information of the target end node, and the route determining node is based on the global virtual identifier. Determining the network parameters and routing parameters of the processing node on the routing path, and determining a routing path for the interface data to be transmitted in the new network architecture according to the global virtual identifier of the target end node.

FIG. 7 is a schematic structural diagram of Embodiment 1 of a route determining node according to the present invention. As shown in FIG. 7, the route determining node in this embodiment may include: a determining module 71 and a processing module 72, where the determining module 71 is configured to determine a target. The global virtual identifier of the end node, the routing determination node is a centralized control unit or an entry point or a function node in the software-defined network, the target end node is a target end node of the routing path of the transmission interface data, and the global virtual identifier is used to indicate the target end node The interface information and the network information; the processing module 72 is configured to determine network parameters and routing parameters of the processing node on the routing path according to the global virtual identifier.

In one embodiment, the processing module is further configured to:

Determining, according to the global virtual identifier, the first processing node on the routing path, so that the first processing node determines the network parameter and the routing parameter of the second processing node on the routing path according to the received global virtual identifier, where the second processing node is A processing node's next hop processing node.

In an embodiment, the network parameter includes at least one of a network address of the processing node, a network identifier, a port number, a protocol type, a service type, and a quality parameter;

The processing module 72 is specifically configured to: Determining, according to the PLMN identifier, a processing node corresponding to the PLMN identifier;

Determining, according to the area identifier, a processing node in an area where the user equipment is located;

Determining routing parameters of the target end node according to the interface type identifier;

Determining, by the base station identifier and/or the cell identifier, a processing node on the routing path of the interface data; determining, according to the user equipment identifier and the bearer identifier, the data flow direction of the interface data and the data flow direction on the service granularity.

In one embodiment, the determining module 71 is specifically configured to:

Receive the global virtual ID of the SNC configuration; or,

The global virtual identity is determined by self-learning.

The device in this embodiment can be used to implement the technical solution of the method embodiment shown in FIG. 2, and the principle and the technical effect are similar, and details are not described herein again.

FIG. 8 is a schematic structural diagram of Embodiment 2 of a route determining node according to the present invention. As shown in FIG. 8, the routing determining node in this embodiment may further include: a receiving module 73, based on the embodiment shown in FIG. The receiving module 73 is configured to receive the interface data before the determining module 71 determines the global virtual identifier of the target end node.

The device in this embodiment can be used to implement the technical solution of the method embodiment shown in FIG. 3, and the principle and the technical effect are similar, and details are not described herein again.

In an embodiment, the processing module 72 is further configured to: before the receiving module 73 receives the interface data, allocate and manage information of the global resource identifier in the global virtual identifier; establish a correspondence between the global virtual identifier and the processing node in the software-defined network.

In one embodiment, the processing node information includes: at least one of a support capability of the processing node, a processing capability of the processing node, an operating state of the processing node, and a connection state of the processing node; the logical relationship of the global resource identifier includes the global resource. The affiliation relationship between the global resource identifier of the global resource identifier and the subordinate global resource identifier of the global resource identifier. The device in this embodiment may be used to implement the technical solution of the method embodiment shown in FIG. 4, and the implementation principle and the technical effect are similar, and details are not described herein again.

FIG. 9 is a schematic structural diagram of Embodiment 3 of a route determining node according to the present invention. As shown in FIG. 9, the route determining node in this embodiment includes a transmitter 91, a receiver 92, a memory 93, and a transmitter 91, respectively. The processor 92 and the memory 93 are connected to the processor 94. The memory 93 stores a set of program codes, and the processor 94 is configured to call the program code stored in the memory 93 for determining the global virtual identifier of the target end node, and the route determining node is A centralized control unit or an entry point or a function node in the software-defined network, the target end node is a target end node of a routing path for transmitting interface data, and the global virtual identifier is used to indicate interface information and network information of the target end node; , determine the network parameters and routing parameters of the processing node on the routing path.

In one embodiment, processor 94 is further configured to:

The processor 94 is also used to:

Determining, by the base station identifier and/or the cell identifier, a processing node on the routing path of the interface data; determining the data flow direction and service granularity of the interface data according to the user equipment identifier and the bearer identifier The flow of data.

In one embodiment, processor 94 is further configured to:

In one embodiment, the receiver 92 is configured to receive interface data before the processor 94 determines the global virtual identity of the target end node.

In one embodiment, the processor 94 is further configured to allocate and manage information of the global resource identifier in the global virtual identifier before the receiver 92 receives the interface data; establish a correspondence between the global virtual identifier and the processing node in the software definition network.

In one embodiment, the processing node information includes: at least one of a support capability of the processing node, a processing capability of the processing node, an operating state of the processing node, and a connection state of the processing node; the logical relationship of the global resource identifier includes the global resource. The affiliation relationship between the global resource identifier of the global resource identifier and the subordinate global resource identifier of the global resource identifier.

The device in this embodiment may be used to perform the technical solution of the method embodiment shown in any one of FIG. 2-4, and the implementation principle and the technical effect are similar, and details are not described herein again.

It should be noted that the corresponding structural diagrams of the above embodiments are only one schematic, and the connection relationship of each part or module is not limited to the form shown in the figure, and may be subject to the actual application.

In the several embodiments provided by the present invention, it should be understood that the disclosed apparatus and method may be implemented in other manners. For example, the device embodiments described above are merely illustrative. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner, for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form. The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above integrated unit can be implemented in the form of hardware or in the form of hardware plus software functional units.

The above-described integrated unit implemented in the form of a software functional unit can be stored in a computer readable storage medium. The software functional unit is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor to perform the method of various embodiments of the present invention. Part of the steps. The foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, which can store program code. .

A person skilled in the art can clearly understand that for the convenience and brevity of the description, only the division of each functional module described above is exemplified. In practical applications, the above function assignment can be completed by different functional modules as needed, that is, the device is installed. The internal structure is divided into different functional modules to perform all or part of the functions described above. For the specific working process of the device described above, refer to the corresponding process in the foregoing method embodiment, and details are not described herein again.

Finally, it should be noted that the above embodiments are only for explaining the technical solutions of the present invention, and are not intended to be limiting thereof; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that The technical solutions described in the foregoing embodiments may be modified, or some or all of the technical features may be equivalently replaced; and the modifications or substitutions do not deviate from the technical solutions of the embodiments of the present invention. range.

Claims

claims

1. An inter-node communication processing method, characterized by including:

The route determination node determines the global virtual identity of the target end node. The route determination node is a centralized control unit or an entry point or a functional node in the software-defined network. The target end node is the target end node of the routing path that transmits the interface data. The global virtual identifier is used to indicate the interface information and network information of the target end node;

The route determination node determines the network parameters and routing parameters of the processing node on the routing path according to the global virtual identity.

2. The method according to claim 1, characterized in that the route determination node determines the network parameters and routing parameters of the processing nodes on the routing path according to the global virtual identity, including:

The route determination node determines the first processing node on the routing path based on the global virtual identity, so that the first processing node determines the second processing node on the routing path based on the received global virtual identity. Network parameters and routing parameters of the processing node, and the second processing node is the next-hop processing node of the first processing node.

3. The method according to claim 1 or 2, characterized in that the network parameters include at least one of the network address of the processing node, network identification, port number, protocol type, service type, and quality parameters;

The routing parameters include at least one of the network address, network identification, port number, protocol type, service type, and quality parameters of the processing node.

4. The method according to any one of claims 1-3, characterized in that the global virtual identification includes an interface type identification and a global resource identification;

5. The method according to claim 4, wherein the global resource identification includes at least one of logical resource identification information, physical resource identification information, dynamic resource identification information, and group identification information in the network.

6. The method according to claim 4, characterized in that the global resource identifier includes a public land mobile network PLMN identifier, a regional identifier, a base station identifier, a cell identifier, a user equipment identifier, and a bearer identifier;

The route determination node determines a route for processing the interface data based on the global virtual identity. The network parameters and routing parameters of the processing nodes on the path include:

The route determination node determines the processing node corresponding to the PLMN identification based on the PLMN identification;

The route determination node determines the processing node in the area where the user equipment is located based on the area identifier;

The route determination node determines the routing parameters of the target end node according to the interface type identification; the route determination node determines the processing node on the routing path of the interface data according to the base station identification and/or the cell identification. ;

The route determination node determines the data flow direction of the interface data and the data flow direction at the service granularity based on the user equipment identification and the bearer identification.

7. The method according to any one of claims 1 to 6, characterized in that the routing determination node determines the global virtual identity of the target end node, including:

The route determination node receives the global virtual identity configured by the centralized network control unit SNC; or,

The routing determination node sends a global virtual identity request message to the SNC, and receives a response message containing the global virtual identity sent by the SNC; or,

8. The method according to any one of claims 1 to 7, characterized in that, before the routing determination node determines the global virtual identity of the target end node, it further includes:

The routing determination node receives the interface data.

9. The method according to claim 8, characterized in that, before the routing determination node receives the interface data, it further includes:

The routing determination node allocates and manages the information of the global resource identifier in the global virtual identifier;

The routing determination node establishes a corresponding relationship between the global virtual identifier and the processing node in the software-defined network.

10. The method according to claim 9, characterized in that, the information of the global resource identifier includes: processing node information corresponding to the global resource identifier, network parameters corresponding to the global resource identifier, the global resource identifier At least one of the corresponding routing parameters and the logical relationship of the global resource identifier.

11. The method according to claim 10, characterized in that the processing node information includes: the support capability of the processing node, the processing capability of the processing node, the operating status of the processing node, the At least one of the connection states;

The logical relationship of the global resource identifier includes an attribution relationship between the global resource identifier and a superior global resource identifier of the global resource identifier or a relationship between the global resource identifier and a subordinate global resource identifier of the global resource identifier. Contains relationships.

12. A routing determination node, characterized by: including:

Determination module, used to determine the global virtual identity of the target end node. The route determination node is a centralized control unit or an entry point or a functional node in the software-defined network. The target end node is the target end of the routing path that transmits interface data. Node, the global virtual identifier is used to indicate the interface information and network information of the target end node;

A processing module, configured to determine the network parameters and routing parameters of the processing node on the routing path according to the global virtual identity.

13. The route determination node according to claim 12, characterized in that the processing module is also used to:

Determine the first processing node on the routing path according to the global virtual identifier, so that the first processing node determines the network parameters of the second processing node on the routing path according to the received global virtual identifier. and routing parameters, and the second processing node is the next-hop processing node of the first processing node.

14. The route determination node according to claim 12 or 13, characterized in that the network parameters include at least one of the network address, network identification, port number, protocol type, service type, and quality parameters of the processing node;

15. The route determination node according to any one of claims 12-14, characterized in that, the global virtual identifier includes an interface type identifier and a global resource identifier;

16. The route determination node according to claim 15, wherein the global resource identification includes at least one of logical resource identification information, physical resource identification information, dynamic resource identification information, and group identification information in the network.

17. The route determination node according to claim 15, wherein the global resource identifier includes a public land mobile network PLMN identifier, a regional identifier, a base station identifier, a cell identifier, a user equipment identifier, and a bearer identifier;

The processing module is specifically used for:

According to the PLMN identification, determine the processing node corresponding to the PLMN identification;

Determine the processing node in the area where the user equipment is located according to the area identifier; Determine the routing parameters of the target end node according to the interface type identifier;

Determine the processing node on the routing path of the interface data according to the base station identification and/or the cell identification;

According to the user equipment identification and the bearer identification, the data flow direction of the interface data and the data flow direction at the service granularity are determined.

18. The route determination node according to any one of claims 12-17, characterized in that the determination module is specifically used for:

Receive the global virtual identity configured by the centralized network control unit SNC; or,

Send a global virtual identity request message to the SNC, and receive a response message sent by the SNC containing the global virtual identity; or,

The global virtual identity is determined through self-learning.

19. The route determination node according to any one of claims 12-18, characterized in that, further comprising:

A receiving module, configured to receive the interface data before the determining module determines the global virtual identity of the target end node.

20. The route determination node according to claim 19, characterized in that the processing module is further configured to allocate and manage the global resource identification in the global virtual identification before the receiving module receives the interface data. Information; Establish a corresponding relationship between the global virtual identifier and the processing node in the software-defined network.

21. The route determination node according to claim 20, characterized in that, the information of the global resource identifier includes: processing node information corresponding to the global resource identifier, network parameters corresponding to the global resource identifier, the global At least one of the routing parameters corresponding to the resource identifier and the logical relationship of the global resource identifier.

22. The route determination node according to claim 21, characterized in that, the processing node Information, including: at least one of: the support capability of the processing node, the processing capability of the processing node, the operating status of the processing node, and the connection status of the processing node;

23. A route determination node, characterized in that it includes a transmitter, a receiver, a memory and a processor respectively connected to the transmitter, the receiver and the memory, characterized in that, the memory stores A set of program codes, and the processor is used to call the program code stored in the memory to determine the global virtual identity of the target end node. The route determination node is a centralized control unit or entry point in the software-defined network or Function node, the target end node is the target end node of the routing path for transmitting interface data, and the global virtual identity is used to indicate the interface information and network information of the target end node; according to the global virtual identity, determine the Network parameters and routing parameters for processing nodes on the routing path.

24. The route determination node according to claim 23, characterized in that the processor is also used to:

Determine the first processing node on the routing path according to the global virtual identity, so that the first processing node determines the network parameters of the second processing node on the routing path according to the received global virtual identity. and routing parameters, and the second processing node is the next-hop processing node of the first processing node.

25. The route determination node according to claim 23 or 24, wherein the network parameters include at least one of the network address, network identification, port number, protocol type, service type, and quality parameters of the processing node;

26. The route determination node according to any one of claims 23-25, characterized in that the global virtual identifier includes an interface type identifier and a global resource identifier;

27. The route determination node according to claim 26, wherein the global resource identification includes at least one of logical resource identification information, physical resource identification information, dynamic resource identification information, and group identification information in the network.

28. The route determination node according to claim 26, wherein the global resource identifier includes a public land mobile network PLMN identifier, a regional identifier, a base station identifier, a cell identifier, a user equipment identifier, and a bearer identifier;

The processor is also used for:

Determine the processing node corresponding to the PLMN identification according to the PLMN identification; Determine the processing node in the area where the user equipment is located according to the area identification; Determine the routing parameters of the target end node according to the interface type identification;

29. The route determination node according to any one of claims 23-28, characterized in that the processor is also used to:

30. The route determination node according to any one of claims 23 to 29, characterized in that the receiver is configured to receive the interface data before the processor determines the global virtual identity of the target end node. .

31. The routing determination node according to claim 30, wherein the processor is further configured to allocate and manage the global resource identifier in the global virtual identifier before the receiver receives the interface data. Information; Establish a corresponding relationship between the global virtual identifier and the processing node in the software-defined network.

32. The route determination node according to claim 31, characterized in that the information of the global resource identifier includes: processing node information corresponding to the global resource identifier, network parameters corresponding to the global resource identifier, the global At least one of the routing parameters corresponding to the resource identifier and the logical relationship of the global resource identifier.

33. The route determination node according to claim 32, characterized in that, the processing node Information, including: at least one of: the support capability of the processing node, the processing capability of the processing node, the operating status of the processing node, and the connection status of the processing node;