CN115842696A

CN115842696A - Communication method, apparatus and computer-readable storage medium

Info

Publication number: CN115842696A
Application number: CN202111007998.4A
Authority: CN
Inventors: 高军诗; 王海涛; 王迎春; 谭哲; 杨天普
Original assignee: China Mobile Communications Group Co Ltd; China Mobile Group Design Institute Co Ltd
Current assignee: China Mobile Communications Group Co Ltd; China Mobile Group Design Institute Co Ltd
Priority date: 2021-08-30
Filing date: 2021-08-30
Publication date: 2023-03-24

Abstract

The application discloses a communication method, a communication device and a computer readable storage medium, wherein the communication method comprises the following steps: acquiring a communication mode of a service to be forwarded; when the communication mode is an optical fiber communication mode, performing first encapsulation on the service to be forwarded, and sending the encapsulated service to be forwarded to the fixed-mobile convergence service gateway through the segmented routing SR tunnel so that the fixed-mobile convergence service gateway determines a communication link of the service to be forwarded according to encapsulation information of the service to be forwarded; and when the communication mode is a base station network communication mode, performing second encapsulation on the service to be forwarded, and sending the encapsulated service to be forwarded to the fixed-mobile convergence service gateway through the generic routing encapsulation GRE tunnel, so that the fixed-mobile convergence service gateway determines a communication link of the service to be forwarded according to encapsulation information of the service to be forwarded. The method and the device can adopt different communication modes and communication tunnels to forward services based on the fixed-mobile fusion technology, so that the reliability of the private line communication is improved.

Description

Communication method, apparatus and computer-readable storage medium

Technical Field

The present application relates to the field of communications technologies, and in particular, to a communication method, an apparatus, and a computer-readable storage medium.

Background

In the prior art, the communication of an operator is usually realized by using an optical fiber transmission network or a base station network. However, the transmission network depends on the degree of the optical fiber laying to the station, and if the optical fiber is not laid to the station, the transmission network cannot adapt to the special line service. Compared with an optical fiber transmission network, a base station network is greatly influenced by environmental factors such as coverage capability of the base station network, signal strength and surrounding electromagnetic interference, the bandwidth is often limited, the time delay is unstable, and the experience of large bandwidth and low time delay is difficult to guarantee. Therefore, the existing private line communication has low reliability.

Disclosure of Invention

The embodiment of the application aims to solve the problem that the existing private line communication is low in reliability by providing a communication method, a communication device and a computer readable storage medium.

In order to achieve the above object, an aspect of the present application provides a communication method, where the communication method is applied to a fixed-mobility convergence device, where the fixed-mobility convergence device includes a base station access module and a transport network access module, where the base station access module is used to access a base station network, and the transport network access module is used to access an optical fiber network, and the method includes:

acquiring a communication mode of a service to be forwarded;

when the communication mode is an optical fiber communication mode, performing first encapsulation on the service to be forwarded, and sending the encapsulated service to be forwarded to a fixed-mobile convergence service gateway through a Segmented Routing (SR) tunnel so that the fixed-mobile convergence service gateway determines a communication link of the service to be forwarded according to encapsulation information of the service to be forwarded;

and when the communication mode is a base station network communication mode, performing second encapsulation on the service to be forwarded, and sending the encapsulated service to be forwarded to a fixed-mobile convergence service gateway through a Generic Routing Encapsulation (GRE) tunnel so that the fixed-mobile convergence service gateway determines a communication link of the service to be forwarded according to encapsulation information of the service to be forwarded.

Optionally, the step of performing the first encapsulation on the service to be forwarded includes:

acquiring a Segmented Routing (SR) label, and performing first encapsulation on the service to be forwarded according to the SR label;

the step of performing the second encapsulation on the service to be forwarded includes:

acquiring the head information of an Internet Protocol (IP), and performing second encapsulation on the service to be forwarded according to the head information of the IP;

or performing second encapsulation on the service to be forwarded according to the segment routing SR label and the header information of the internet protocol IP, wherein a target communication link of the service to be forwarded is determined according to the SR label and the header information, and the service to be forwarded is forwarded to a target fixed-mobile convergence device through the target communication link.

Optionally, before the step of obtaining the communication mode of the service to be forwarded, the method includes:

establishing the segmented routing SR tunnel between the fixed-mobile convergence device and the fixed-mobile convergence service gateway;

and establishing the generic routing encapsulation GRE tunnel between the fixed-mobile convergence device and the fixed-mobile convergence service gateway.

Optionally, the step of obtaining a communication mode of the service to be forwarded includes:

detecting a path state of a communication link, wherein the communication link comprises a working link and a protection link, the working link is communicated based on an optical fiber network and comprises the Segmented Routing (SR) tunnel, and the protection link is communicated based on a base station network and comprises the Generic Routing Encapsulation (GRE) tunnel;

when the working link is detected to be in a connection state, determining that the communication mode of the service to be forwarded is the optical fiber communication mode;

when the working link is detected to be in a disconnected state and the protection link is detected to be in a connected state, determining that the communication mode of the service to be forwarded is the base station network communication mode;

wherein, when detecting that the working link is in a disconnected state and the protection link is in a connected state, triggering protection switching to switch the working link to the protection link

In addition, to achieve the above object, another aspect of the present application further provides a method for applying the communication method to a fixed-mobile convergence service gateway, where the method includes:

receiving a service to be forwarded sent by a Segmented Routing (SR) tunnel or a Generic Routing Encapsulation (GRE) tunnel;

acquiring encapsulation information of the service to be forwarded, and determining a target communication link of the service to be forwarded according to the encapsulation information;

and sending the service to be forwarded to a target fixed-mobile fusion device according to the target communication link.

Optionally, the step of determining the target communication link of the service to be forwarded according to the encapsulation information includes:

when the packaging information is a Segmented Routing (SR) label, determining a working link as the target communication link;

when the encapsulation information is header information of an Internet Protocol (IP), determining a protection link as the target communication link;

and when the encapsulation information is the fragment routing SR label and the header information of the Internet Protocol (IP), determining a working link as the target communication link, wherein the working link is communicated based on a fiber network and comprises the fragment routing SR tunnel, and the protection link is communicated based on a base station network and comprises the Generic Routing Encapsulation (GRE) tunnel.

Optionally, after the step of determining the protection link as the target communication link, the step of sending the service to be forwarded to a target fixed-mobile convergence device according to the target communication link includes:

receiving forwarding path label information of the service to be forwarded, which is sent by a controller;

determining a target forwarding path of the service to be forwarded in the target communication link according to the forwarding path tag information, and sending the service to be forwarded to the target fixed-moving fusion device according to the target forwarding path;

the controller determines forwarding path label information of the service to be forwarded according to topology information and adjacency information of a communication link sent by a fixed-mobile convergence service gateway; or, the topology information and the adjacency information are obtained according to the configuration information of the communication link, and forwarding path label information of the service to be forwarded is determined according to the topology information and the adjacency information.

In addition, to achieve the above object, another aspect of the present application further provides a communication apparatus, including an obtaining module, a first sending module, and a second sending module, where:

the acquisition module is used for acquiring the communication mode of the service to be forwarded;

the first sending module is configured to, when the communication mode is an optical fiber communication mode, perform first encapsulation on the service to be forwarded, and send the encapsulated service to be forwarded to a fixed-mobile convergence service gateway through a segment routing SR tunnel, so that the fixed-mobile convergence service gateway determines a communication link of the service to be forwarded according to encapsulation information of the service to be forwarded;

the second sending module is configured to perform second encapsulation on the service to be forwarded when the communication mode is a base station network communication mode, and send the encapsulated service to be forwarded to a fixed-mobile convergence service gateway through a generic routing encapsulation GRE tunnel, so that the fixed-mobile convergence service gateway determines a communication link of the service to be forwarded according to encapsulation information of the service to be forwarded;

or, the communication device includes a receiving module, a determining module, and a third sending module, wherein:

the receiving module is used for receiving the service to be forwarded, which is sent by a segment routing SR tunnel or a generic routing encapsulation GRE tunnel;

the determining module is used for acquiring encapsulation information of the service to be forwarded and determining a target communication link of the service to be forwarded according to the encapsulation information;

and the third sending module is used for sending the service to be forwarded to a target fixed-mobile convergence device according to the target communication link.

In addition, in order to achieve the above object, another aspect of the present application further provides a communication device, which includes a memory, a processor, and a communication program stored in the memory and running on the processor, wherein the processor implements the steps of the communication method as described above when executing the communication program.

In addition, to achieve the above object, another aspect of the present application further provides a computer-readable storage medium having a communication program stored thereon, where the communication program is executed by a processor to implement the steps of the communication method as described above.

The application provides a communication method, which comprises the steps of obtaining a communication mode of a service to be forwarded; when the communication mode is an optical fiber communication mode, performing first encapsulation on the service to be forwarded, and sending the encapsulated service to be forwarded to the fixed-mobile convergence service gateway through the segmented routing SR tunnel so that the fixed-mobile convergence service gateway determines a communication link of the service to be forwarded according to encapsulation information of the service to be forwarded; and when the communication mode is a base station network communication mode, performing second encapsulation on the service to be forwarded, and sending the encapsulated service to be forwarded to the fixed-mobile convergence service gateway through the generic routing encapsulation GRE tunnel, so that the fixed-mobile convergence service gateway determines a communication link of the service to be forwarded according to encapsulation information of the service to be forwarded. The method and the device can adopt different communication modes and communication tunnels to forward services based on the fixed-mobile fusion technology, so that the reliability of private line communication is improved.

Drawings

Fig. 1 is a schematic terminal structure diagram of a hardware operating environment according to an embodiment of the present application;

FIG. 2 is a schematic flow chart of a first embodiment of the communication method of the present application;

fig. 3 is a schematic flow chart of a second embodiment of the communication method of the present application;

fig. 4 is a schematic structural diagram of a fixed-mobile convergence device and a fixed-mobile convergence service gateway according to the present application;

fig. 5 is a schematic diagram illustrating an unprotected link networking scenario according to the present application;

fig. 6 is a schematic diagram of a networking scenario with a protection link according to the present application;

fig. 7 is a schematic diagram of a networking scenario of the fixed-mobile convergence networking technology 1 of the present application;

fig. 8 is a schematic diagram of a networking scenario of the fixed-mobile convergence networking technology 2 of the present application;

FIG. 9 is a block diagram of a communication device of the present application;

fig. 10 is another block diagram of the communication device of the present application.

The implementation, functional features and advantages of the objectives of the present application will be further explained with reference to the accompanying drawings.

Detailed Description

It should be understood that the specific embodiments described herein are merely illustrative of and not restrictive on the broad application.

The main solution of the embodiment of the application is as follows: acquiring a communication mode of a service to be forwarded; when the communication mode is an optical fiber communication mode, performing first encapsulation on the service to be forwarded, and sending the encapsulated service to be forwarded to a fixed-mobile convergence service gateway through a Segmented Routing (SR) tunnel so that the fixed-mobile convergence service gateway determines a communication link of the service to be forwarded according to encapsulation information of the service to be forwarded; and when the communication mode is a base station network communication mode, performing second encapsulation on the service to be forwarded, and sending the encapsulated service to be forwarded to a fixed-mobile convergence service gateway through a Generic Routing Encapsulation (GRE) tunnel so that the fixed-mobile convergence service gateway determines a communication link of the service to be forwarded according to encapsulation information of the service to be forwarded.

Because the transmission network depends on the degree of laying the optical fiber to the station, if the optical fiber is not laid to the station, the transmission network cannot adapt to the private line service, and the base station network is greatly influenced by environmental factors such as the coverage capability of the base station network, the signal intensity, the surrounding electromagnetic interference and the like, and the bandwidth is often limited, the time delay is unstable, and the experience of large bandwidth and low time delay is difficult to ensure. Therefore, the existing private line communication has low reliability.

The method comprises the steps of obtaining a communication mode of a service to be forwarded; when the communication mode is an optical fiber communication mode, performing first encapsulation on the service to be forwarded, and sending the encapsulated service to be forwarded to the fixed-mobile convergence service gateway through the segmented routing SR tunnel so that the fixed-mobile convergence service gateway determines a communication link of the service to be forwarded according to encapsulation information of the service to be forwarded; and when the communication mode is a base station network communication mode, performing second encapsulation on the service to be forwarded, and sending the encapsulated service to be forwarded to the fixed-mobile convergence service gateway through the generic routing encapsulation GRE tunnel, so that the fixed-mobile convergence service gateway determines a communication link of the service to be forwarded according to encapsulation information of the service to be forwarded. The method and the device can adopt different communication modes and communication tunnels to forward services based on the fixed-mobile fusion technology, so that the reliability of the private line communication is improved.

As shown in fig. 1, fig. 1 is a schematic structural diagram of a terminal device in a hardware operating environment according to an embodiment of the present application.

As shown in fig. 1, the terminal device may include: a processor 1001, e.g. a CPU, a network interface 1004, a user interface 1003, a memory 1005, a communication bus 1002. Wherein a communication bus 1002 is used to enable connective communication between these components. The user interface 1003 may include a Display screen (Display), an input unit such as a Keyboard (Keyboard), and the optional user interface 1003 may also include a standard wired interface, a wireless interface. The network interface 1004 may optionally include a standard wired interface, a wireless interface (e.g., WI-FI interface). The memory 1005 may be a high-speed RAM memory or a non-volatile memory (e.g., a magnetic disk memory). The memory 1005 may alternatively be a storage device separate from the processor 1001 described previously.

Those skilled in the art will appreciate that the terminal device configuration shown in fig. 1 does not constitute a limitation of the terminal device and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.

As shown in fig. 1, a memory 1005, which is a kind of computer-readable storage medium, may include a communication program therein.

In the terminal device shown in fig. 1, the network interface 1004 is mainly used for data communication with the background server; the user interface 1003 is mainly used for data communication with a client (user side); when the terminal is a mobile convergence device, the processor 1001 may be configured to call a communication program in the memory 1005, and perform the following operations:

acquiring a communication mode of a service to be forwarded;

When the terminal is a fixed-mobile convergence service gateway, the processor 1001 may be configured to call a communication program in the memory 1005, and perform the following operations:

receiving a service to be forwarded sent by a segmented routing SR tunnel or a generic routing encapsulation GRE tunnel;

and sending the service to be forwarded to a target fixed-mobile convergence device according to the target communication link.

Referring to fig. 2, fig. 2 is a flowchart illustrating a first embodiment of the communication method of the present application.

While a communication method is provided in the embodiments of the present application, it should be noted that although a logical order is shown in the flow chart, in some cases, the steps shown or described may be performed in an order different from that shown.

The communication method of this embodiment is applied to a fixed-mobile convergence device, where the fixed-mobile convergence device includes a base station access module and a transport network access module, the base station access module is used to access a base station network, and the transport network access module is used to access an optical fiber network, and the method includes the following steps:

step S10, acquiring a communication mode of a service to be forwarded;

it should be noted that the communication system of the present application includes a controller, a fixed-mobile convergence device (i.e., a fixed-mobile convergence integrated device), and a fixed-mobile convergence service gateway, where the controller may be an existing controller system of an existing network, but a control part related to the fixed-mobile convergence service is added to the existing control system, or an APP with this function is added. Meanwhile, the controller has big data processing and correlation analysis capabilities, can realize cross-network E2E service rapid deployment, service SLA management and perception by combining the whole network topology, and provides rapid service fault location and delimitation capabilities.

The fixed-mobile integrated device and the fixed-mobile integrated service gateway can be the same equipment or different equipment types, can be card-type equipment or fixed equipment, can also adopt different machine frame designs, and are linked with each other through a control system.

Referring to fig. 4, fig. 4 is a schematic structural diagram of a fixed-mobility convergence device and a fixed-mobility convergence service gateway according to the present application, where the fixed-mobility convergence integrated device and the fixed-mobility convergence service gateway mainly include a data plane, a control plane, and a management plane. The data plane mainly includes functional modules such as service access, OAM detection (Operation Administration and Maintenance) and APS Protection (Automatic Protection Switching), a base station access module (for accessing a base station network), a transport network access module (for accessing an optical fiber network), and a user side port and a network side port. Meanwhile, the main functions of the data plane include various processes such as access packet identification, flow classification, service path encapsulation, decapsulation, flow labeling, flow statistics, service path OAM detection, service active/standby path APS protection switching, and the like. The control plane comprises functional modules of network topology routing, control signaling, resource management and the like. The management plane is used for realizing the functions of configuration management, fault management, performance management, safety management and the like of the network element level and the network level. The data plane is connected with other equipment through a user side port (UNI) and a network side port (NNI), and the management plane and the control plane are connected with a network management and control system through a management interface and a control interface respectively. The fixed-mobile integrated service gateway can be used as a service gateway of the fixed-mobile integrated device, and can also play a role of a control gateway of the fixed-mobile integrated device.

Furthermore, the fixed-mobile fusion networking scene has various combinations, and can be divided into two major categories, namely a non-protection link networking scene and a protected link networking scene from the viewpoint of the existence of a service path without a protection link. Referring to fig. 5, fig. 5 is a schematic diagram illustrating an unprotected link networking scenario, where the unprotected link networking scenario includes three sub-scenarios, i.e., a base station network to base station network, a base station network to transmission network, and a transmission network to transmission network. Referring to fig. 6, fig. 6 is a schematic diagram of a networking scenario with a protection link, where the networking scenario with the protection link includes that working and protection links are all from a base station network to a base station network, working and protection links are all from a transmission network to a transmission network, working and protection links are all from a base station network to a transmission network, working links are all from a base station network to a base station network and protection links are from a transmission network to a transmission network, and working links are from a transmission network to a transmission network and protection links are from a transmission network to a transmission network, and the like, where the protection link and the working link are a protection group.

Because different communication modes correspond to different communication links, when the integrated fixed-mobile convergence device forwards a service, the communication mode of the service to be forwarded needs to be determined, where the communication mode includes an optical fiber communication mode and a base station network communication mode, the communication link includes a working link (i.e., a primary link) and a protection link (i.e., a backup link), meanwhile, the working link performs communication based on the optical fiber network and includes a segment routing SR tunnel, and the protection link performs communication based on the base station network and includes a generic routing encapsulation GRE tunnel. In an embodiment, the fixed-mobile convergence integrated device initiates OAM detection on a service path in real time, and when detecting that a working link is in a connected state, sends a service to be forwarded based on the working link, and the working link forwards the service based on a transmission network (optical fiber network), so that a communication mode of the service to be forwarded can be determined as an optical fiber communication mode. When the working link is detected to be in a disconnected state, but the protection link is detected to be in a connected state, which indicates that the working link is abnormal, at this time, the protection link needs to be adopted to send the service to be forwarded, and the protection link forwards the service based on the base station network (i.e., the base station mobile network), so that the communication mode of the service to be forwarded can be determined as the communication mode of the base station network.

In order to improve the reliability of the service, under the condition that the link is interrupted, the service needs to be switched to the backup link within 50ms, so that the service is ensured not to be interrupted, and based on the service interruption, an Automatic Protection Switching (APS) protection mechanism is provided. In an embodiment, when detecting that the working link is in the disconnected state, the APS protection switching is initiated, and the working link is switched to the protection link or the active link is switched to the standby link. For example, three messages are not received continuously on the working link, which indicates that the working link is in a disconnected state, and at this time, if it is detected that the protection link is in a connected state, APS protection switching is started to ensure normal forwarding of the service. When the protection link is used to forward the service, the air interface resource of the base station needs to be consumed, so that the cost is increased, and therefore, when the working link and the protection link are both in a connected state, the working link is used by default to forward the service.

Step S20, when the communication mode is an optical fiber communication mode, performing first encapsulation on the service to be forwarded, and sending the encapsulated service to be forwarded to a fixed-mobile convergence service gateway through a Segment Routing (SR) tunnel so that the fixed-mobile convergence service gateway determines a communication link of the service to be forwarded according to encapsulation information of the service to be forwarded;

when the communication mode of the service to be forwarded is determined to be an optical fiber communication mode, the service to be forwarded is sent through the working link, and since the working link forwards the service by using an SR (segment routing) tag, when the service to be forwarded is sent, the service to be forwarded needs to be subjected to first encapsulation. In an embodiment, a Segment routing SR tag is obtained, and then a service to be forwarded is first encapsulated according to the Segment routing SR tag, for example, a Segment List (Segment List) with sequence is encapsulated in a tunnel in a header of a packet on a header node of a data packet corresponding to the service to be forwarded, so as to indicate how a node (router, host, or device) receiving the service to be forwarded forwards and processes the service to be forwarded. And further sending the encapsulated service to be forwarded to a fixed-mobile convergence service gateway through a segmented routing SR tunnel, wherein the fixed-mobile convergence service gateway obtains encapsulation information of the service to be forwarded after receiving the service to be forwarded, namely decompressing the service to be forwarded to obtain a segmented routing SR label, and then determining a communication link of the service to be forwarded according to the segmented routing SR label.

In an embodiment, before forwarding the service, a segment routing SR tunnel (including three SR tunnel technologies of MPLS SR, SR-TP, and SRv 6) between the fixed-mobile convergence device and the fixed-mobile convergence service gateway is established, for example, taking SR-TP as an example, the SR-TP tunnel is used for a connection-oriented, point-to-point service bearer, and provides a connection-based end-to-end monitoring operation and maintenance capability. The SR-TP tunnel establishment comprises tunnel configuration and tunnel establishment, an IS-IS neighbor relation needs to be established between repeaters before the SR-TP tunnel IS established, an IS-IS or BGP-LS neighbor relation IS established between the repeaters and a controller, network layer intercommunication IS realized, distribution of labels and collection of network topology information are completed, and the labels and the network topology information are uploaded to the controller for the controller to carry out path calculation.

Optionally, the fixed-moving integration device performs tunnel on-off Detection on the IP/GRE tunnel and the SRv6 tunnel by using Bidirectional Forwarding Detection (BFD), for example, the fixed-moving integration device detects whether a link quality event occurs according to link quality information carried in a received BFD packet, where the link quality problems such as a packet loss abnormal event, a disorder abnormal event, a jitter abnormal event, and/or a delay abnormal event may be detected according to the link quality information carried in the received BFD packet, and a link quality parameter value is obtained according to the link quality event, and if the link quality parameter value exceeds a preset link quality threshold, it indicates that the link is abnormal, and at this time, the communication tunnel needs to be switched. Secondly, MPLS-TP and MPLS SR (including SR-TP) adopt OAM mechanism (G.8113.1) of MPLS-TP system and APS protection Protocol cooperated between BFD and MPLS-TP OAM, wherein MPLS is Multi-Protocol Label Switching (MPLS).

And step S30, when the communication mode is a base station network communication mode, performing second encapsulation on the service to be forwarded, and sending the encapsulated service to be forwarded to a fixed-mobile convergence service gateway through a Generic Routing Encapsulation (GRE) tunnel so that the fixed-mobile convergence service gateway determines a communication link of the service to be forwarded according to encapsulation information of the service to be forwarded.

When the communication mode of the service to be forwarded is determined to be a base station network communication mode, the service to be forwarded is sent through the protection link, and because the protection link forwards the service by using a Generic Routing Encapsulation (GRE) tunnel, a second Encapsulation is required for the service to be forwarded when the service to be forwarded is sent. In an embodiment, header information of an Internet Protocol (IP) is obtained, second encapsulation is performed on a service to be forwarded according to the header information of the IP, for example, IP header information is obtained, which includes configuring an IP source address and an IP destination address, and then the IP header information is encapsulated in a packet corresponding to the service to be forwarded. And further sending the data packet to a fixed-mobile convergence service gateway through a Generic Routing Encapsulation (GRE) tunnel, wherein after receiving the data packet of the service to be forwarded, the fixed-mobile convergence service gateway decapsulates headers layer by layer, reads protocol parameters, and then determines a communication path of the service to be forwarded according to the protocol parameters.

In an embodiment, to save transmission cost, a segment routing SR tag and header information of an internet protocol IP may be used to perform second encapsulation on a service to be forwarded, for example, the segment routing SR tag is encapsulated into a data packet of the service to be forwarded, then IP header information is encapsulated into the data packet, and then the encapsulated data packet is sent to a gateway of a convergence service to a mobile station through a generic routing encapsulation GRE tunnel. After receiving the data packet of the service to be forwarded, the fixed-mobile convergence service gateway decapsulates the first layer and then can obtain the segment routing SR label, so that the service to be forwarded can perform label forwarding.

In one embodiment, before forwarding the service, an IP/GRE tunnel is established between the base station air interface of the integrated fixed-mobile convergence device and the interface of the gateway connecting the core network of the integrated fixed-mobile convergence device, and an L2 VPN (two-layer VPN) or an L3 VPN (three-layer VPN) is carried in the IP/GRE tunnel. For example, when a GRE tunnel needs to be established on a network device, a source address, a destination address and a tunnel name of the GRE tunnel are obtained, the tunnel name has uniqueness on the network device, and then a GRE tunnel establishment request is sent to the network device, the GRE tunnel establishment request carries the source address, the destination address and the tunnel name, so that the network device establishes the GRE tunnel corresponding to the source address, the destination address and the tunnel name.

The special line networking scheme of the application has the following advantages:

through a plurality of module building systems (a transmission network access module, a base station access module, a fusion module, fusion main/standby link detection & protection switching + controller), multi-scene special line bearing across networks is realized, and special line main/standby service path detection and main/standby path reliability protection switching carried on the transmission network and the base station network are realized by combining fixed-moving fusion.

The base station network or the transmission network can be used as a service main service path, a standby route or a single service path, and meanwhile, the base station network and the transmission network can be fused and cooperated to form an E2E service path, and a plurality of service paths form on-off detection and reliability protection switching of the main service path and the standby service path;

compared with the special line networking technology of the transmission network, the method and the device can rapidly open the service under the condition that the optical fiber does not arrive at the station, and can provide on-off detection and reliability protection for the main and standby service links under the condition that the optical fiber arrives at the station. Compared with the base station network private line networking technology, the method and the device can provide service bandwidth guarantee by using the stable optical fiber channel of the transmission network. Meanwhile, compared with an SLA detection mode of splicing two networking technologies of a base station network and a transmission network section by section, the method and the device can realize the SLA detection of the E2E service of the cross-networking technology of the base station network and the transmission network, and present the most real service carrying network performance.

Further, referring to fig. 3, a second embodiment of the communication method of the present application is proposed.

The communication method is applied to a fixed-mobile convergence service gateway, and comprises the following steps:

step S40, receiving service to be forwarded sent by a segment routing SR tunnel or a generic routing encapsulation GRE tunnel;

the fixed-mobile convergence service gateway can receive the service to be forwarded, which is sent by the fixed-mobile convergence device, through the SR tunnel or the generic routing encapsulation GRE tunnel.

Step S50, obtaining encapsulation information of the service to be forwarded, and determining a target communication link of the service to be forwarded according to the encapsulation information;

when the fixed-mobile convergence service gateway receives the service to be forwarded, the service to be forwarded is unpacked to obtain encapsulation information, and then a target communication link of the service to be forwarded is determined according to the encapsulation information. In an embodiment, when the encapsulation information is a segment routing SR tag, the working link is determined as a target communication link, and at this time, the fixed-mobile convergence service gateway sends a service to be forwarded in a wired manner (optical fiber network). When the encapsulation information is the header information of the Internet Protocol (IP), a protection link is determined as a target communication link, and at the moment, the fixed-mobile convergence service gateway sends the service to be forwarded in a wireless mode (a base station network). When the encapsulation information is the head information of the segment routing SR label and the Internet protocol IP, the working link is determined as the target communication link, and at the moment, the fixed-mobile convergence service gateway sends the service to be forwarded in a wired mode (an optical fiber network). Because the segment routing SR label is packaged firstly, and the head information of the Internet interconnection protocol IP is packaged secondly, the segment routing SR label is obtained when the fixed and mobile convergence service gateway is unpacked, and thus, the label forwarding service can be directly adopted, namely, the service is forwarded in a wired mode. The working link is communicated based on an optical fiber network and comprises a segment routing SR tunnel, and the protection link is communicated based on a base station network and comprises a generic routing encapsulation GRE tunnel.

And step S60, sending the service to be forwarded to a target fixed-mobile convergence device according to the target communication link.

After determining a target communication link of the service to be forwarded, the fixed-mobile convergence service gateway directly sends the service to be forwarded to the target fixed-mobile convergence device according to the target link, for example, if the target communication link is a working link, the service to be forwarded is sent to the target fixed-mobile convergence device according to the working link; and if the target communication link is a protection link, sending the service to be forwarded to the target fixed-mobile convergence device according to the protection link.

In an embodiment, forwarding path tag information of the to-be-forwarded service of the controller is received, and the forwarding path tag information carries entry node and exit node information of the SR path, so that the fixed-mobile convergence service gateway can directly determine a target forwarding path (SR path) of the to-be-forwarded service according to the forwarding path tag information, and then send the to-be-forwarded service according to the target forwarding path, where the SR path is an ordered list of network segments in which the SR entry node is connected to the SR exit node.

The controller determines forwarding path label information of the service to be forwarded according to topology information and adjacency information of the communication link, and the topology information and the adjacency information of the communication link can be obtained in two ways, wherein one way is that the topology information and the adjacency information of the communication link are reported to the controller by the fixed-mobile convergence service gateway; the other is that the controller acquires topology information and adjacency information based on configuration information for the communication link.

The method and the device realize E2E SR-TE path rapid deployment, service link path adjustment and the like through cooperation of the controller.

In order to better explain the communication mode of the application, two fixed-mobile convergence networking technologies are adopted for networking.

Referring to fig. 7, fig. 7 is a schematic diagram of a networking scenario of the fixed-mobile convergence networking technology 1 of the present application;

in this embodiment, an IP/GRE tunnel is established between the base station air interface of the integrated mobile/fixed convergence device and the interface of the mobile/fixed convergence service gateway connection core network, and the L2 VPN or the L3 VPN is carried in the IP/GRE tunnel. And then, VPN bridging of an IP/GRE tunnel and an MPLS tunnel or an SR tunnel (comprising three SR tunnel technologies of MPLS SR, SR-TP and SRv 6) is carried out at the fixed-mobile convergence service gateway, and service forwarding from the base station network to the transmission network (or service forwarding from the base station network to the base station network) is completed.

In the fixed-moving convergence networking technology 1, a protection group of cross-tunnel types of an IP/GRE tunnel and an SR tunnel is involved, under a general condition, BFD is adopted for tunnel on-off detection of the IP/GRE tunnel and the SRv6 tunnel, an OAM mechanism (G.8113.1) of an MPLS-TP system is adopted for MPLS-TP and MPLS SR (including SR-TP), and an APS protection protocol coordinated between BFD and MPLS-TP OAM is adopted.

Further, referring to fig. 8, fig. 8 is a schematic diagram of a networking scene of the fixed-mobile convergence networking technology 2 of the present application;

in this embodiment, an IP/GRE tunnel is established between the base station air interface of the integrated fixed-mobile convergence device and the interface of the fixed-mobile convergence service gateway connecting core network, and the IP/GRE tunnel is used as an adjacent Segment or a binding Segment of the MPLS/SR tunnel. And then, performing adjacent label processing of IP/GRE tunnel adjacent to MPLS tunnel or SR tunnel (including three SR tunnel technologies of MPLS SR, SR-TP and SRv 6) at the fixed-mobile convergence service gateway, and completing tunnel label forwarding from the base station network to the transmission network (or tunnel label forwarding from the base station network to the base station network).

In the fixed-moving fusion networking technology 2, an IP/GRE tunnel is used as an adjacent Segment or a combining Segment of an SR tunnel, and the adjacent Segment distribution and the cooperation of a controller can be realized in two ways.

Mode 1: running an interior gateway protocol IGP on an IP/GRE tunnel, collecting TOP and segment of Link topology through the interior gateway protocol IGP, and sending the collected TOP and segment to a controller through BGP-LS (BGP Link-state), wherein the BGP-LS collects a network topology mode and is used for summarizing topology information collected by the IGP protocol and sending the topology information to an upper-layer controller. The controller collects the integral topology information TOP and segment of the transmission network and the base station network, so that the controller can carry out SRv6-TE/SR-TE/SR-TP path calculation and SRv6-TE/SR-TE/SR-TP tunnel to the fixed-mobile integrated device and the fixed-mobile integrated service gateway.

Mode 2: the controller is adopted to configure adjacent Segment or binding Segment of IP/GRE tunnel to the device for data plane, the controller synthesizes topology information TOP and Segment collected from the transmission network and link and Segment configured in the IP/GRE tunnel into integral SR calculation path TOP and Segment information containing base station network (IP/GRE tunnel adjacent Segment) and transmission network, thus the controller can perform SRv6-TE/SR-TE/SR-TP path calculation path and SRv6-TE/SR-TE/SR-TP tunnel to be deployed to the fixed-mobile integrated device and the fixed-mobile integrated service gateway. Under the condition of the networking technology, the network is an E2E (end-to-end) SR tunnel, and does not relate to an OAM detection and protection group of an IP/GRE tunnel and a SR tunnel crossing tunnel type.

Under the two networking technologies, both the E2E VPN services can support the E2E Service stream In-Band performance detection (In-Band OAM) technology, and Service-level agreement (SLA) performance information of the E2E Service is presented on the controller, which can be used for operation and maintenance, path optimization, and Service fault location and definition of the Service.

According to the method, the special line of any scene networking is quickly opened and the reliability of the special line main and standby links is protected through the detection and protection of the transmission network access module, the base station network access module, the fusion module and the fusion main and standby links; the original multiple networking technologies separated can only exert respective technical advantages in limited scenes, and multi-scene special line bearing is really realized. Meanwhile, the method and the device realize the high-reliability detection and protection of the main and standby links by combining network limited conditions, wherein the service of the base station network access scene is quickly opened, and the transmission network and the base station network are fixedly fused.

In addition, the present application also provides a communication device, which includes a memory, a processor, and a communication program stored in the memory and running on the processor, wherein the processor implements the steps of the communication method when executing the communication program.

Further, referring to fig. 9, the communication apparatus 100 includes an obtaining module 10, a first sending module 20, and a second sending module 30, wherein:

the acquiring module 10 is configured to acquire a communication mode of a service to be forwarded;

the first sending module 20 is configured to, when the communication mode is an optical fiber communication mode, perform first encapsulation on the service to be forwarded, and send the encapsulated service to be forwarded to a fixed-mobile convergence service gateway through a segment routing SR tunnel, so that the fixed-mobile convergence service gateway determines a communication link of the service to be forwarded according to encapsulation information of the service to be forwarded;

the second sending module 30 is configured to, when the communication mode is a base station network communication mode, perform second encapsulation on the service to be forwarded, and send the encapsulated service to be forwarded to a fixed-mobile convergence service gateway through a generic routing encapsulation GRE tunnel, so that the fixed-mobile convergence service gateway determines a communication link of the service to be forwarded according to encapsulation information of the service to be forwarded.

Further, the first transmitting module 20 includes a first packaging unit;

the first encapsulation unit is used for acquiring a Segment Routing (SR) label and performing first encapsulation on the service to be forwarded according to the Segment Routing (SR) label;

the second transmitting module 30 includes a second encapsulating unit;

the second encapsulating unit is configured to obtain header information of an internet protocol IP, and perform second encapsulation on the service to be forwarded according to the header information of the internet protocol IP;

the second encapsulating unit is further configured to perform second encapsulation on the service to be forwarded according to the segment routing SR tag and the header information of the internet protocol IP, where a target communication link of the service to be forwarded is determined according to the SR tag and the header information, and the service to be forwarded is forwarded to a target fixed-mobile convergence device through the target communication link.

Further, the obtaining module 10 includes an establishing unit;

the establishing unit is configured to establish the segment routing SR tunnel between the fixed-mobile convergence device and the fixed-mobile convergence service gateway;

the establishing unit is further configured to establish the generic routing encapsulation GRE tunnel between the fixed-mobile convergence device and the fixed-mobile convergence service gateway.

Further, the acquiring module 10 further includes a detecting unit and a determining unit;

the detection unit is configured to detect a path state of a communication link, where the communication link includes a working link and a protection link, the working link performs communication based on an optical fiber network and includes the segment routing SR tunnel, and the protection link performs communication based on a base station network and includes the generic routing encapsulation GRE tunnel;

the determining unit is configured to determine, when it is detected that the working link is in a connected state, that a communication mode of the service to be forwarded is the optical fiber communication mode;

the determining unit is further configured to determine, when it is detected that the working link is in a disconnected state and the protection link is in a connected state, that a communication mode of the service to be forwarded is the base station network communication mode;

and when the working link is detected to be in a disconnected state and the protection link is detected to be in a connected state, triggering protection switching to switch the working link to the protection link.

Further, referring to fig. 10, the communication apparatus 100 includes a receiving module 40, a determining module 50, and a third transmitting module 60, wherein:

the receiving module 40 is configured to receive a service to be forwarded, where the service is sent by a segment routing SR tunnel or a generic routing encapsulation GRE tunnel;

the determining module 50 is configured to obtain encapsulation information of the service to be forwarded, and determine a target communication link of the service to be forwarded according to the encapsulation information;

the third sending module 60 is configured to send the service to be forwarded to a target fixed-mobile convergence device according to the target communication link.

Further, the determining module 50 is further configured to determine, when the encapsulation information is a segment routing SR tag, a working link as the target communication link;

the determining module 50 is further configured to determine a protection link as the target communication link when the encapsulation information is header information of an internet protocol IP;

the determining module 50 is further configured to determine, as the target communication link, a working link when the encapsulation information is the segment routing SR tag and the header information of the internet protocol IP, where the working link is based on a fiber network and includes the segment routing SR tunnel, and the protection link is based on a base station network and includes the generic routing encapsulation GRE tunnel.

Further, the third sending module 60 includes a receiving unit and a third sending unit;

the receiving unit is configured to receive forwarding path label information of the service to be forwarded, where the forwarding path label information is sent by the controller;

the third sending unit is configured to determine a target forwarding path of the service to be forwarded in the target communication link according to the forwarding path tag information, and send the service to be forwarded to the target fixed-mobile convergence device according to the target forwarding path; the controller determines forwarding path label information of the service to be forwarded according to topology information and adjacency information of a communication link sent by a fixed-mobile convergence service gateway; or, the topology information and the adjacency information are obtained according to the configuration information of the communication link, and forwarding path label information of the service to be forwarded is determined according to the topology information and the adjacency information.

The implementation of the functions of the modules of the communication device is similar to the process in the embodiment of the method, and is not described in detail here.

Further, the present application provides a computer-readable storage medium having stored thereon a communication method program, which when executed by a processor, implements the steps of the above communication method.

As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

It should be noted that in the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The application can be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means can be embodied by one and the same item of hardware. The usage of the words first, second and third, etcetera do not indicate any ordering. These words may be interpreted as names.

While alternative embodiments of the present application have been described, additional variations and modifications of these embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following appended claims be interpreted as including alternative embodiments and all such alterations and modifications as fall within the scope of the application.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.

Claims

1. A communication method is applied to a fixed-mobile convergence device, wherein the fixed-mobile convergence device comprises a base station access module and a transport network access module, the base station access module is used for accessing a base station network, and the transport network access module is used for accessing an optical fiber network, and the method comprises the following steps:

acquiring a communication mode of a service to be forwarded;

2. The communication method of claim 1, wherein the step of first encapsulating the traffic to be forwarded comprises:

3. The communication method according to claim 1, wherein the step of obtaining the communication mode of the service to be forwarded comprises:

4. The communication method according to claim 1, wherein the step of obtaining the communication mode of the service to be forwarded comprises:

when the working link is detected to be in a disconnection state and the protection link is detected to be in a connection state, triggering protection switching to switch the working link to the protection link.

5. A communication method is applied to a fixed-mobile convergence service gateway, and the method comprises the following steps:

6. The communication method according to claim 5, wherein the step of determining the target communication link for the traffic to be forwarded according to the encapsulation information comprises:

when the encapsulation information is the header information of an Internet Protocol (IP), determining a protection link as the target communication link;

7. The communication method according to claim 6, wherein after the step of determining the protection link as the target communication link, the step of sending the traffic to be forwarded to the target fixed-mobile convergence device according to the target communication link includes:

8. A communication apparatus, comprising an obtaining module, a first sending module, and a second sending module, wherein:

9. A communication device comprising a memory, a processor and a communication program stored on the memory and running on the processor, the processor when executing the communication program implementing the steps of the method according to any of claims 1 to 7.

10. A computer-readable storage medium, characterized in that the computer-readable storage medium has stored thereon a communication program which, when executed by a processor, carries out the steps of the method according to any one of claims 1 to 7.