CN113596917A - Method and device for realizing GTP communication data message processing based on signaling assistance - Google Patents
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Abstract
The application provides a method, a device, a medium and an electronic device for realizing GTP communication data message processing based on signaling assistance, which relate to the technical field of communication and comprise the following steps: monitoring an N2 signaling of the first specific interface to acquire session parameters for constructing uplink and downlink GTP tunnel communication established by the second specific interface; acquiring packet header parameters in an uplink data packet of the GTP tunnel according to the second specific interface; determining uplink distribution strategy information and downlink distribution strategy information according to the session parameters and the packet header parameters; extracting an uplink data packet sent to the local area network by the user equipment according to the uplink distribution strategy information, removing a GTP packet header and distributing the data to the local area network; and packaging a downlink data packet sent to the user equipment by the local area network into a GTP message according to the downlink distribution strategy information, and sending the GTP message to the gNB. Therefore, the implementation of the method can quickly build the 5G private network, and compared with other networking schemes such as independently deploying a 5G core network, the deployment difficulty and the complexity of the implementation process can be reduced.
Description
Technical Field
The present application relates to the field of communications technologies, and in particular, to a method for implementing GTP communication data packet processing based on signaling assistance, an apparatus for implementing GTP communication data packet processing based on signaling assistance, a computer-readable storage medium, and an electronic device.
Background
5gnr (new radio), which is a global 5G standard based on a new air interface design of Orthogonal Frequency Division Multiplexing (OFDM) technology, and is also the basis of the next generation of cellular mobile technology, and the 5G technology will realize ultra-low delay and high reliability data transmission. The current networking is increasingly difficult to carry information flow generated by emerging technologies required by enterprise development, such as big data, cloud computing, artificial intelligence, internet of everything and the like. Aiming at the problem, a 5G network is needed to be introduced to meet the requirements of information infrastructure required by enterprise digital transformation of different levels such as security isolation level, wide coverage, low time delay, cloud network convergence and the like. The existing method for solving the above problems mainly aims to implement independent networking or deploy a 5G Core Network (5G Core Network, 5GC) in an enterprise, but this method has the problems of high complexity of implementation process and difficult deployment.
It is to be noted that the information disclosed in the above background section is only for enhancement of understanding of the background of the present application and therefore may include information that does not constitute prior art known to a person of ordinary skill in the art.
Disclosure of Invention
The application aims to provide a method for realizing GTP communication data message processing based on signaling assistance, a device for realizing GTP communication data message processing based on signaling assistance, a computer-readable storage medium and an electronic device, which can determine uplink distribution strategy information and downlink distribution strategy information for data transmission in a local area network based on session parameters and protocol parameters, thereby realizing data transmission in the local area network based on the uplink distribution strategy information and the downlink distribution strategy information, without additionally deploying a 5G core network or an independent networking, and reducing deployment difficulty and complexity of a realization process.
Other features and advantages of the present application will be apparent from the following detailed description, or may be learned by practice of the application.
According to an aspect of the present application, a method for implementing GTP communication data message processing based on signaling assistance is provided, including:
monitoring signaling of a first specific interface to acquire session parameters for constructing a user data plane session between a base station and a 5GC core network;
acquiring protocol parameters in a reference uplink data packet sent by the user equipment according to a second specific interface;
determining uplink distribution strategy information and downlink distribution strategy information according to the session parameters and the protocol parameters;
extracting an uplink data packet sent to a local area network by user equipment according to the uplink distribution strategy information, and analyzing the uplink data packet according to the uplink distribution strategy information;
and extracting a downlink data packet sent to the user equipment by the local area network according to the downlink distribution strategy information, and analyzing the downlink data packet according to the downlink distribution strategy information.
In an exemplary embodiment of the present application, the protocol parameters include header parameters of a GPRS tunneling protocol.
In an exemplary embodiment of the present application, monitoring signaling of a first specific interface to obtain session parameters for constructing a user data plane session between a base station and a 5GC core network includes:
detecting a base station switching condition of user equipment;
if the base station switching condition is used for indicating that the user equipment is switched from the non-local area base station to the local area base station, monitoring a signaling of the first specific interface to acquire a session parameter for constructing a user data plane session between the local area base station and the 5GC core network.
In an exemplary embodiment of the present application, the method further includes:
detecting a base station switching condition of user equipment;
and if the base station switching condition is used for indicating that the user equipment is switched from the first local area base station to the second local area base station, updating the uplink distribution strategy information and the downlink distribution strategy information according to the parameter information corresponding to the second local area base station and the parameter information corresponding to the user equipment.
In an exemplary embodiment of the present application, the method further includes:
detecting a base station switching condition of user equipment;
and if the base station switching condition is used for indicating that the user equipment is disconnected with the local area base station, stopping extracting the data packet related to the user equipment.
In an exemplary embodiment of the present application, parsing an uplink data packet according to uplink distribution policy information includes:
decapsulating the uplink data packet according to the uplink distribution policy information to obtain a complete data packet which satisfies a preset protocol in the uplink data packet;
extracting specific parts of the complete data message; wherein the particular portion does not contain redundant data;
the specific portion is sent to the local area network.
In an exemplary embodiment of the present application, parsing a downlink data packet according to downlink distribution policy information includes:
packaging the downlink data packet into a target data message meeting a preset protocol according to the downlink distribution strategy information;
and sending the target data message to user equipment or a base station.
According to an aspect of the present application, there is provided a device for implementing GTP communication data message processing based on signaling assistance, including: signaling monitoring unit, uplink data acquisition unit, distribution strategy determination unit, uplink data packet processing unit, downlink data packet processing unit, wherein:
the signaling monitoring unit is used for monitoring the signaling of the first specific interface so as to obtain session parameters for constructing a user data plane session between the base station and the 5GC core network;
an uplink data obtaining unit, configured to obtain, according to a second specific interface, a protocol parameter in a reference uplink data packet sent by the user equipment;
a distribution strategy determining unit, configured to determine uplink distribution strategy information and downlink distribution strategy information according to the session parameter and the protocol parameter;
the uplink data packet processing unit is used for extracting an uplink data packet sent to the local area network by the user equipment according to the uplink distribution strategy information and analyzing the uplink data packet according to the uplink distribution strategy information;
and the downlink data packet processing unit is used for extracting the downlink data packet sent to the user equipment by the local area network according to the downlink distribution strategy information and analyzing the downlink data packet according to the downlink distribution strategy information.
In an exemplary embodiment of the present application, the protocol parameters include header parameters of a GPRS tunneling protocol.
In an exemplary embodiment of the present application, the monitoring signaling unit monitors signaling of a first specific interface to obtain session parameters for constructing a user data plane session between a base station and a 5GC core network, including:
detecting a base station switching condition of user equipment;
if the base station switching condition is used for indicating that the user equipment is switched from the non-local area base station to the local area base station, monitoring a signaling of the first specific interface to acquire a session parameter for constructing a user data plane session between the local area base station and the 5GC core network.
In an exemplary embodiment of the present application, the apparatus further includes:
a base station switching condition detection unit for detecting the base station switching condition of the user equipment;
and a distribution strategy updating unit, configured to update the uplink distribution strategy information and the downlink distribution strategy information according to the parameter information corresponding to the second local area base station and the parameter information corresponding to the user equipment when the base station switching condition is used to indicate that the user equipment is switched from the first local area base station to the second local area base station.
In an exemplary embodiment of the present application, the apparatus further includes:
a base station switching condition detection unit for detecting the base station switching condition of the user equipment;
and the termination extraction unit is used for terminating the extraction of the data packet related to the user equipment when the base station switching condition is used for indicating that the user equipment is disconnected with the local area base station.
In an exemplary embodiment of the present application, the parsing, by the uplink packet processing unit, the uplink packet according to the uplink distribution policy information includes:
decapsulating the uplink data packet according to the uplink distribution policy information to obtain a complete data packet which satisfies a preset protocol in the uplink data packet;
extracting specific parts of the complete data message; wherein the particular portion does not contain redundant data;
the specific portion is sent to the local area network.
In an exemplary embodiment of the present application, the parsing, by the downlink packet processing unit, the downlink packet according to the downlink distribution policy information includes:
packaging the downlink data packet into a target data message meeting a preset protocol according to the downlink distribution strategy information;
and sending the target data message to user equipment or a base station.
According to an aspect of the present application, there is provided an electronic device including: a processor; and a memory for storing executable instructions for the processor; wherein the processor is configured to perform the method of any of the above via execution of the executable instructions.
According to an aspect of the application, there is provided a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the method of any one of the above.
According to an aspect of the application, a computer program product or computer program is provided, comprising computer instructions stored in a computer readable storage medium. The processor of the computer device reads the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions to cause the computer device to perform the method provided in the various alternative implementations described above.
The exemplary embodiments of the present application may have some or all of the following advantages:
in the method for implementing GTP communication data message processing based on signaling assistance provided by an example embodiment of the present application, signaling of a first specific interface may be monitored to obtain session parameters for constructing a user data plane session between a base station and a 5GC core network; acquiring protocol parameters in a reference uplink data packet sent by the user equipment according to a second specific interface; determining uplink distribution strategy information and downlink distribution strategy information according to the session parameters and the protocol parameters; extracting an uplink data packet sent to a local area network by user equipment according to the uplink distribution strategy information, and analyzing the uplink data packet according to the uplink distribution strategy information; and extracting a downlink data packet sent to the user equipment by the local area network according to the downlink distribution strategy information, and analyzing the downlink data packet according to the downlink distribution strategy information. According to the above technical description, in one aspect of the present application, the uplink distribution policy information and the downlink distribution policy information for data transmission in the local area network may be determined based on the session parameters and the protocol parameters, so that data transmission in the local area network is achieved based on the uplink distribution policy information and the downlink distribution policy information, a 5G core network or an independent networking does not need to be additionally deployed, and deployment difficulty and complexity of an implementation process may be reduced. On the other hand, the method and the device can reduce deployment cost, realize local area network shunt, avoid roundabout circulation of private network data in an operator network, ensure data privacy and realize low-delay communication.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
Fig. 1 is a schematic diagram illustrating an exemplary system architecture of a method and an apparatus for implementing GTP communication data packet processing based on signaling assistance, to which embodiments of the present application may be applied;
FIG. 2 illustrates a schematic structural diagram of a computer system suitable for use in implementing an electronic device of an embodiment of the present application;
figure 3 schematically illustrates a flow chart of a method for implementing GTP communication data message processing based on signaling assistance, according to an embodiment of the present application;
fig. 4 schematically shows a structural diagram for processing traffic data in a local breakout device according to an embodiment of the present application;
FIG. 5 schematically illustrates a multi-terminal interaction diagram in a communication process according to an embodiment of the present application;
figure 6 schematically illustrates a flow chart of a method for implementing GTP communication data message processing based on signaling assistance, according to another embodiment of the present application;
FIG. 7 schematically illustrates a base station handover situation in one embodiment according to the present application;
figure 8 schematically illustrates a flow chart of a method for implementing GTP communication data message processing based on signaling assistance, in accordance with yet another embodiment of the present application;
fig. 9 schematically shows a block diagram of a device for implementing GTP communication data message processing based on signaling assistance in an embodiment according to the present application.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the application. One skilled in the relevant art will recognize, however, that the subject matter of the present application can be practiced without one or more of the specific details, or with other methods, components, devices, steps, and so forth. In other instances, well-known technical solutions have not been shown or described in detail to avoid obscuring aspects of the present application.
Furthermore, the drawings are merely schematic illustrations of the present application and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus their repetitive description will be omitted. Some of the block diagrams shown in the figures are functional entities and do not necessarily correspond to physically or logically separate entities. These functional entities may be implemented in the form of software, or in one or more hardware modules or integrated circuits, or in different networks and/or processor devices and/or microcontroller devices.
Fig. 1 is a schematic diagram illustrating a system architecture of an exemplary application environment in which a method for implementing GTP communication data packet processing based on signaling assistance and an apparatus for implementing GTP communication data packet processing based on signaling assistance according to an embodiment of the present application may be applied.
As shown in fig. 1, the system architecture 100 may include one or more of terminal devices 101, 102, 103, a network 104, and a server 105. The network 104 serves as a medium for providing communication links between the terminal devices 101, 102, 103 and the server 105. Network 104 may include various connection types, such as wired, wireless communication links, or fiber optic cables, to name a few. The terminal devices 101, 102, 103 may be various electronic devices having a display screen, including but not limited to desktop computers, portable computers, smart phones, tablet computers, and the like. It should be understood that the number of terminal devices, networks, and servers in fig. 1 is merely illustrative. There may be any number of terminal devices, networks, and servers, as desired for implementation. For example, server 105 may be a server cluster comprised of multiple servers, or the like.
The method for processing GTP communication data messages based on signaling assistance provided in the embodiment of the present application is generally executed by the server 105, and accordingly, the apparatus for processing GTP communication data messages based on signaling assistance is generally disposed in the server 105. However, it is easily understood by those skilled in the art that the method for implementing GTP communication data packet processing based on signaling assistance provided in the embodiment of the present application may also be executed by the terminal device 101, 102, or 103, and correspondingly, the apparatus for implementing GTP communication data packet processing based on signaling assistance may also be disposed in the terminal device 101, 102, or 103, which is not particularly limited in this exemplary embodiment. For example, in an exemplary embodiment, the server 105 may listen to signaling of a first specific interface to obtain session parameters for constructing a user data plane session between a base station and a 5GC core network; acquiring protocol parameters in a reference uplink data packet sent by the user equipment according to a second specific interface; determining uplink distribution strategy information and downlink distribution strategy information according to the session parameters and the protocol parameters; extracting an uplink data packet sent to a local area network by user equipment according to the uplink distribution strategy information, and analyzing the uplink data packet according to the uplink distribution strategy information; and extracting a downlink data packet sent to the user equipment by the local area network according to the downlink distribution strategy information, and analyzing the downlink data packet according to the downlink distribution strategy information.
FIG. 2 illustrates a schematic structural diagram of a computer system suitable for use in implementing the electronic device of an embodiment of the present application.
It should be noted that the computer system 200 of the electronic device shown in fig. 2 is only an example, and should not bring any limitation to the functions and the scope of use of the embodiments of the present application.
As shown in fig. 2, the computer system 200 includes a Central Processing Unit (CPU)201 that can perform various appropriate actions and processes in accordance with a program stored in a Read Only Memory (ROM)202 or a program loaded from a storage section 208 into a Random Access Memory (RAM) 203. In the RAM 203, various programs and data necessary for system operation are also stored. The CPU 201, ROM 202, and RAM 203 are connected to each other via a bus 204. An input/output (I/O) interface 205 is also connected to bus 204.
The following components are connected to the I/O interface 205: an input portion 206 including a keyboard, a mouse, and the like; an output section 207 including a display such as a Cathode Ray Tube (CRT), a Liquid Crystal Display (LCD), and the like, and a speaker; a storage section 208 including a hard disk and the like; and a communication section 209 including a network interface card such as a LAN card, a modem, or the like. The communication section 209 performs communication processing via a network such as the internet. A drive 210 is also connected to the I/O interface 205 as needed. A removable medium 211, such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, or the like, is mounted on the drive 210 as necessary, so that a computer program read out therefrom is installed into the storage section 208 as necessary.
In particular, according to embodiments of the present application, the processes described below with reference to the flowcharts may be implemented as computer software programs. For example, embodiments of the present application include a computer program product comprising a computer program embodied on a computer readable medium, the computer program comprising program code for performing the method illustrated by the flow chart. In such an embodiment, the computer program may be downloaded and installed from a network through the communication section 209 and/or installed from the removable medium 211. The computer program, when executed by a Central Processing Unit (CPU)201, performs various functions defined in the methods and apparatus of the present application.
The embodiment of the invention provides a method for processing a GTP communication data message based on signaling assistance. The method for processing GTP communication data packets based on signaling assistance may be applied to the server 105, and may also be applied to one or more of the terminal devices 101, 102, and 103, which is not particularly limited in this exemplary embodiment. Referring to fig. 3, the method for implementing GTP communication data message processing based on signaling assistance may include the following steps S310 to S350.
Step S310: and monitoring signaling of the first specific interface to acquire session parameters for constructing a user data plane session between the base station and the 5GC core network.
Step S320: and acquiring the protocol parameters in the reference uplink data packet sent by the user equipment according to the second specific interface.
Step S330: and determining uplink distribution strategy information and downlink distribution strategy information according to the session parameters and the protocol parameters.
Step S340: and extracting an uplink data packet sent to the local area network by the user equipment according to the uplink distribution strategy information, and analyzing the uplink data packet according to the uplink distribution strategy information.
Step S350: and extracting a downlink data packet sent to the user equipment by the local area network according to the downlink distribution strategy information, and analyzing the downlink data packet according to the downlink distribution strategy information.
It should be noted that, based on the technical solutions disclosed in steps S310 to S350, the present application may be applied to a use scenario of a 5G network facing a closed area (e.g., a manufacturing park, a port, a mine enterprise, etc.), so as to meet requirements of 5G network deployment regionalization, network requirement personalization, industry application scenario, etc.
By implementing the method shown in fig. 3, the uplink distribution policy information and the downlink distribution policy information for data transmission in the local area network can be determined based on the session parameters and the protocol parameters, so that data transmission in the local area network is realized based on the uplink distribution policy information and the downlink distribution policy information, a 5G core network or an independent networking does not need to be additionally deployed, and the deployment difficulty and the complexity of the implementation process can be reduced. In addition, the deployment cost can be reduced, the local area network shunt is realized, the roundabout circulation of private network data in an operator network is avoided, the data privacy can be ensured, and the low-delay communication can be realized.
The above steps of the present exemplary embodiment will be described in more detail below.
In step S310, signaling of the first specific interface is monitored to obtain session parameters for constructing a user data plane session between the base station and the 5GC core network.
In particular, the protocol parameters include header parameters of the GPRS tunneling protocol. The session parameters may include protocol data unit session ID (pdusesionid), AMF-UE-NGAP-ID of Access and Mobility Management Function side (AMF), RAN-UE-NGAP-ID of 5G base station side (gNB), N3 interface IP of 5G base station side (gNB), GTP TEID of 5G base station side (gNB), N3 interface IP of User Plane Function side (User Plane Function, UPF), GTP TEID of Network Slice Selection Assistance Information (NSSAI), Slice Information of Quality of Service (QoS) data stream ID (qfi), 5QI for indexing QoS characteristics in 5G, and the like. In addition, the first specific interface may be denoted as N2, N2 may be used to connect a 5G base station (gNB) and a 5G Core Network (5G Core Network, 5GC), and signaling transmitted between the gNB and the 5GC may be referred to as N2 signaling.
It should be noted that a Protocol Data Unit (PDU) is a Unit of Data transferred between peer layers in a hierarchical network structure. The PDU of the physical layer of the PDU is a data bit (bit), the PDU of the data link layer is a data frame (frame), the PDU of the network layer is a data packet (packet), the PDU of the transport layer is a data segment (segment), and the PDU of other higher layers is a message (message).
Optionally, before step S310, the method may further include: and deploying local shunt equipment on the gNB access side, and establishing a 5G private network corresponding to the local shunt equipment so as to enable an authorized 5G terminal to access the local area network, thereby reducing the roundabout that data needs to first arrive at a 5G public network, reducing time delay and ensuring the privacy of the data.
As an alternative embodiment, monitoring signaling of the first specific interface to obtain session parameters for constructing a user data plane session between the base station and the 5GC core network includes: detecting a base station switching condition of user equipment; if the base station switching condition is used for indicating that the user equipment is switched from the non-local area base station to the local area base station, monitoring a signaling of the first specific interface to acquire a session parameter for constructing a user data plane session between the local area base station and the 5GC core network.
Specifically, the non-local area base station may be another base station outside the local area network, and the local area base station is a base station used for information transfer and transmission in the local area network.
Therefore, by implementing the optional embodiment, the uplink and downlink traffic channels can be maintained through the switching signaling, so that the user equipment entering the local area network can realize the shunting of the uplink data packet and the downlink data packet in the local area network, thereby improving the response speed of the data packet uploaded/received by the local user equipment.
As an alternative embodiment, the method further includes: detecting a base station switching condition of user equipment; and if the base station switching condition is used for indicating that the user equipment is switched from the first local area base station to the second local area base station, updating the uplink distribution strategy information and the downlink distribution strategy information according to the parameter information corresponding to the second local area base station and the parameter information corresponding to the user equipment.
Specifically, the parameter information corresponding to the second local area base station is used for performing identification description and attribute description on the second local area base station. The parameter information corresponding to the UE may include an N3 interface IP of the gNB, a GTP TEID of the gNB, an N3 interface IP of the UPF, a GTP TEID of the UPF, a UE IP, and a destination IP. The N3 interface is another signaling interface different from the N2 interface, and is used to connect a User Plane Function and a local offloading device, where the TEID (tunnel Endpoint identifier) is used to represent a communication tunnel (PDP), and is specifically divided into a data Plane TEID (u)) and a control Plane TEID (c)), where the GTP is specifically a GPRS Tunneling Protocol (GTP), the UPF is specifically a User Plane Function (UPF), and the UE is specifically a User Equipment (UE).
Therefore, by implementing the optional embodiment, the latest uplink distribution strategy information and the latest downlink distribution strategy information can be configured for the user equipment switched by the local base station, so that low-delay communication is ensured, and the use experience of the user is improved.
As an alternative embodiment, the method further includes: detecting a base station switching condition of user equipment; and if the base station switching condition is used for indicating that the user equipment is disconnected with the local area base station, stopping extracting the data packet related to the user equipment.
Therefore, the implementation of the alternative embodiment can cut off the extraction of the data packet related to the user equipment in time, thereby avoiding the waste of network resources.
In step S320, a protocol parameter in a reference uplink data packet sent by the ue is obtained according to the second specific interface.
In particular, the protocol parameters may include at least one of: interface N3 IP of gNB, GTP TEID of gNB, interface N3 IP of UPF, GTP TEID of UPF, UE IP, destination IP. Acquiring a protocol parameter in a reference uplink data packet sent by user equipment according to a second specific interface, wherein the protocol parameter comprises: and monitoring the signaling of the second specific interface to acquire a reference uplink data packet uploaded to the base station by the user equipment.
In step S330, the uplink distribution policy information and the downlink distribution policy information are determined according to the session parameters and the protocol parameters.
Specifically, determining the uplink distribution policy information and the downlink distribution policy information according to the session parameters and the protocol parameters includes: comparing the session parameters and the protocol parameters with a preset distribution strategy table, and determining the preset distribution strategy information which hits the session parameters and the protocol parameters as the required preset distribution strategy, where the preset distribution strategy may include the uplink distribution strategy information and the downlink distribution strategy information.
In step S340, an uplink data packet sent by the ue to the local area network is extracted according to the uplink distribution policy information, and the uplink data packet is analyzed according to the uplink distribution policy information.
Specifically, the Local Area Network may provide Network services for the user equipment within a preset range, where the Local Area Network (LAN) is a Local Area Network formed in a Local Area, and is used to implement functions such as file management, application software sharing, printer sharing, and the like, maintain Network security of the Local Area Network during the use of the Local Area Network, and effectively protect data security and ensure stable operation of the Network of the Local Area Network.
In step S350, a downlink data packet sent by the local area network to the user equipment is extracted according to the downlink distribution policy information, and the downlink data packet is parsed according to the downlink distribution policy information.
As an optional embodiment, parsing the uplink data packet according to the uplink distribution policy information includes: decapsulating the uplink data packet according to the uplink distribution policy information to obtain a complete data packet which satisfies a preset protocol in the uplink data packet; extracting specific parts of the complete data message; wherein the particular portion does not contain redundant data; the specific portion is sent to the local area network.
Specifically, decapsulating the uplink data packet according to the uplink distribution policy information includes: and decapsulating the GTP data messages in the uplink data packets according to the uplink distribution strategy information to obtain the complete data messages (namely, GTP data messages) which meet the preset protocol in the uplink data packets. Based on the above, the specific part extraction is carried out on the complete data message, and comprises the following steps: the GTP header (i.e., redundant data) in the GTP data packet is deleted to obtain the inner IP data packet as the specific part.
Therefore, by implementing the optional embodiment, the data packet can be locally shunted based on the uplink distribution strategy, the response delay of the data packet is reduced, the data privacy is ensured, and the response efficiency of the data packet is favorably improved.
As an optional embodiment, parsing the downlink data packet according to the downlink distribution policy information includes: packaging the downlink data packet into a target data message meeting a preset protocol according to the downlink distribution strategy information; and sending the target data message to user equipment or a base station.
Specifically, encapsulating the downlink data packet into a target data packet meeting a preset protocol according to the downlink distribution policy information includes: and adding a GTP header in the downlink data packet according to the downlink distribution strategy information so as to encapsulate the downlink data packet into a GTP data message (namely, a target data message) meeting a preset protocol.
Therefore, by implementing the optional embodiment, the data packet can be locally shunted based on the downlink distribution strategy, the response delay of the data packet is reduced, the data privacy is ensured, and the response efficiency of the data packet is favorably improved.
Referring to fig. 4, fig. 4 schematically illustrates a structural diagram for processing traffic data in a local breakout device according to an embodiment of the present application. As shown in fig. 4, the local breakout device may include an N2 signaling analysis module 410, a data packet analysis module 420, and a data packet processing module 430. Specifically, the N2 signaling analysis module 410 is configured to listen to signaling of the N2 interface to obtain session parameters for constructing a user data plane session between the base station and the 5GC core network. And the data packet analysis module 420 is configured to obtain, according to the second specific interface, a protocol parameter in a reference uplink data packet sent by the user equipment.
Furthermore, the local offloading device may determine data packet distribution policy information according to the session parameter and the protocol parameter, where the data packet distribution policy information specifically includes uplink distribution policy information and downlink distribution policy information. The data packet processing module 430 is configured to extract an uplink data packet sent by the ue to the Local Area Network (LAN) according to the uplink distribution policy information, decapsulate the uplink data packet according to the uplink distribution policy information to obtain a complete data packet that satisfies a preset protocol in the uplink data packet, extract a specific portion of the complete data packet, where the specific portion does not include redundant data, and send the specific portion to the Local Area Network (LAN). The data packet processing module 430 is further configured to extract a downlink data packet sent from the local area network to the User Equipment according to the downlink distribution policy information, encapsulate the downlink data packet into a target data packet meeting a preset protocol according to the downlink distribution policy information, and send the target data packet to the User Equipment (UE) or to the base station (gNB) through the Data Network (DN).
Referring to fig. 5, fig. 5 schematically illustrates a multi-terminal interaction in a communication process according to an embodiment of the present application. As shown in fig. 5, the multi-port interaction schematic diagram includes a base station 510, a local breakout device 520, a user plane function 530, a 5G core network 540, a Data Network (DN)550, and a local area network 560; the number of the local distribution devices 520 may be one or more, and the embodiment of the present application is not limited. The 5G core network is used to completely separate a control plane and a user plane, and in the 5G core network, each node is called a Network Function (NF), and the NF generally includes a Network Slice Selection Function (NSSF), an authentication server function (AUSF), a Unified Data Management (UDM), an access and mobility management function (AMF), a Session Management Function (SMF), a Policy Control Function (PCF), an Application Function (AF), a User Plane Function (UPF), and a Data Network (DN).
Specifically, the base station 510 may be a gNB, and is configured to perform data transmission with the 5G core network 540 through an N2 interface, where signaling of data packets exchanged between the base station 510 and the 5G core network 540 is referred to as N2 signaling; the base station 510 may further perform data transmission with the local breakout device 520, where the local breakout device 520 is configured to transmit a data packet of a response to the user equipment based on the local area network 560; the user plane function 530 is configured to perform data transmission with the local breakout device 520 through an N3 interface, with the 5G core network 540 through an N4 interface, and with the data network through an N6 interface.
The local breakout device 520 may monitor data transmission signaling (i.e., N2 signaling) between the base station 510 and the 5G core network 540 to obtain session parameters for constructing a user data plane session between the base station and the 5GC core network, and may obtain data transmission signaling (i.e., N3 signaling) of a reference uplink data packet uploaded by the user plane function 530 and determine protocol parameters in the reference uplink data packet. Further, the local offloading device 520 may determine the uplink distribution policy information and the downlink distribution policy information according to the session parameter and the protocol parameter.
The local breakout device 520 may further extract an uplink data packet sent by the user equipment to the local lan according to the uplink distribution policy information, decapsulate the uplink data packet according to the uplink distribution policy information to obtain a complete data packet that satisfies a preset protocol in the uplink data packet, extract a specific portion of the complete data packet, where the specific portion does not include redundant data, and send the specific portion to the local lan 560. The local breakout device 520 may further extract a downlink data packet sent from the local area network to the user equipment according to the downlink distribution policy information, encapsulate the downlink data packet into a target data packet meeting a preset protocol according to the downlink distribution policy information, and send the target data packet to the user equipment or to the base station 510 through the Data Network (DN) 550.
Referring to fig. 6, fig. 6 schematically shows a flow chart of a method for implementing GTP communication data message processing based on signaling assistance according to another embodiment of the present application. As shown in fig. 6, the method for processing GTP communication data packet based on signaling assistance includes steps S610 to S670.
Step S610: and determining uplink distribution strategy information and downlink distribution strategy information according to the session parameters and the protocol parameters.
Step S620: and extracting an uplink data packet sent to the local area network by the user equipment according to the uplink distribution strategy information.
Step S630: and decapsulating the uplink data packet according to the uplink distribution strategy information to obtain a complete datagram meeting a preset protocol in the uplink data packet.
Step S640: and extracting specific parts of the complete data message, wherein the specific parts do not contain redundant data, and further sending the specific parts to the local area network.
Step S650: and extracting a downlink data packet sent to the user equipment by the local area network according to the downlink distribution strategy information.
Step S660: and packaging the downlink data packet into a target data message meeting a preset protocol according to the downlink distribution strategy information.
Step S670: and sending the target data message to user equipment or a base station.
It should be noted that steps S620 to S640 are processing on the uplink data packet based on the uplink distribution policy information, steps S650 to S670 are processing on the downlink data packet based on the downlink distribution policy information, and steps S620 to S640 and steps S650 to S670 may be executed in parallel, so as to implement data distribution in the local area network, implement data flow in the local area network, and improve the processing efficiency of the data packet.
Referring to fig. 7, fig. 7 is a schematic diagram illustrating a base station handover situation according to an embodiment of the present application. As shown in fig. 7, each of the schematically shown participants in the base station handover case includes: a base station group 710 of a local area, a local breakout device 720, a user plane function 730, a 5G core network 740, a Data Network (DN)750, a local area network 760; the number of the local distribution devices 720 may be one or more, and the embodiment of the present application is not limited.
Specifically, the local breakout device 720 may listen to data transmission signaling (i.e., N2 signaling) between the base station 710 and the 5G core network 540 to obtain session parameters for constructing a user data plane session between the base station and the 5GC core network, and may obtain data transmission signaling (i.e., N3 signaling) of a reference uplink data packet uploaded by the user plane function 730 and determine protocol parameters in the reference uplink data packet. Further, the local breakout device 720 may determine the uplink distribution policy information and the downlink distribution policy information according to the session parameters and the protocol parameters. The local distribution device 720 may further extract an uplink data packet sent by the ue to the local lan according to the uplink distribution policy information, decapsulate the uplink data packet according to the uplink distribution policy information to obtain a complete data packet that satisfies a preset protocol in the uplink data packet, extract a specific portion of the complete data packet, where the specific portion does not include redundant data, and send the specific portion to the local lan 760. The local breakout device 720 may further extract a downlink data packet sent by the local area network to the user equipment according to the downlink distribution policy information, encapsulate the downlink data packet into a target data packet meeting a preset protocol according to the downlink distribution policy information, and send the target data packet to the user equipment or to the base station 710 through the Data Network (DN) 750.
The local offloading device 720 may detect a base station handover condition of the ue, and monitor a signaling of the first specific interface to obtain a session parameter for constructing a user data plane session between the base station and the 5GC core network if the base station handover condition is used to indicate that the ue is handed over from a non-local area base station to any base station in the base station group 710 in the local area. If the base station switching condition is used to indicate that the user equipment is switched from one base station in the base station group 710 in the local area to another base station in the base station group 710 in the local area, the uplink distribution strategy information and the downlink distribution strategy information are updated according to the parameter information corresponding to the another base station and the parameter information corresponding to the user equipment. If the base station switching condition is used for indicating that the user equipment is switched from any base station in the base station group 710 of the local area to any base station outside the base station group 710 of the local area, the user equipment is judged to be disconnected with the base station of the local area, and the extraction of the data packet related to the user equipment is stopped.
Referring to fig. 8, fig. 8 schematically shows a flow chart of a method for implementing GTP communication data message processing based on signaling assistance according to another embodiment of the present application. As shown in fig. 8, the method for implementing GTP communication data message processing based on signaling assistance includes: step S800 to step S880.
Step S800: and detecting the base station switching condition of the user equipment.
Step S810: and if the base station switching condition is used for indicating that the user equipment is switched from the non-local area base station to the local area base station, monitoring the signaling of the first specific interface to acquire session parameters for constructing a user data plane session between the base station and the 5GC core network.
Step S820: and acquiring the protocol parameters in the reference uplink data packet sent by the user equipment according to the second specific interface.
Step S830: and determining uplink distribution strategy information and downlink distribution strategy information according to the session parameters and the protocol parameters.
Step S840: and extracting an uplink data packet sent to the local area network by the user equipment according to the uplink distribution strategy information, decapsulating the uplink data packet according to the uplink distribution strategy information to obtain a complete data packet which meets a preset protocol in the uplink data packet, extracting a specific part of the complete data packet, wherein the specific part does not contain redundant data, and then sending the specific part to the local area network.
Step S850: and extracting a downlink data packet sent to the user equipment by the local area network according to the downlink distribution strategy information, packaging the downlink data packet into a target data message meeting a preset protocol according to the downlink distribution strategy information, and sending the target data message to the user equipment or the base station.
Step S860: and detecting the base station switching condition of the user equipment. Further, step S870 or step S880 is executed.
Step S870: and if the base station switching condition is used for indicating that the user equipment is switched from the first local area base station to the second local area base station, updating the uplink distribution strategy information and the downlink distribution strategy information according to the parameter information corresponding to the second local area base station and the parameter information corresponding to the user equipment.
Step S880: and if the base station switching condition is used for indicating that the user equipment is disconnected with the local area base station, stopping extracting the data packet related to the user equipment.
It should be noted that steps S800 to S880 correspond to the steps and embodiments shown in fig. 3, and for the specific implementation of steps S800 to S880, please refer to the steps and embodiments shown in fig. 3, which are not described herein again.
It can be seen that, by implementing the method shown in fig. 8, the uplink distribution policy information and the downlink distribution policy information for data transmission in the local area network can be determined based on the session parameters and the protocol parameters, so that data transmission in the local area network is realized based on the uplink distribution policy information and the downlink distribution policy information, a 5G core network or an independent networking does not need to be additionally deployed, and the deployment difficulty and the complexity of the implementation process can be reduced. In addition, the deployment cost can be reduced, the local area network shunt is realized, the roundabout circulation of private network data in an operator network is avoided, the data privacy can be ensured, and the low-delay communication can be realized.
Further, in this exemplary embodiment, an apparatus for implementing GTP communication data message processing based on signaling assistance is also provided. Referring to fig. 9, the apparatus 900 for implementing GTP communication data message processing based on signaling assistance may include: a signaling monitoring unit 901, an uplink data obtaining unit 902, a distribution strategy determining unit 903, an uplink data packet processing unit 904, and a downlink data packet processing unit 905, wherein:
a signaling monitoring unit 901, configured to monitor a signaling of a first specific interface to obtain a session parameter for constructing a user data plane session between a base station and a 5GC core network;
an uplink data obtaining unit 902, configured to obtain, according to a second specific interface, a protocol parameter in a reference uplink data packet sent by the user equipment;
a distribution policy determining unit 903, configured to determine uplink distribution policy information and downlink distribution policy information according to the session parameter and the protocol parameter;
an uplink data packet processing unit 904, configured to extract an uplink data packet sent by the user equipment to the local area network according to the uplink distribution policy information, and analyze the uplink data packet according to the uplink distribution policy information;
and the downlink data packet processing unit 905 is configured to extract a downlink data packet sent by the local area network to the user equipment according to the downlink distribution policy information, and analyze the downlink data packet according to the downlink distribution policy information.
Wherein the protocol parameters comprise header parameters of a GPRS tunneling protocol.
It can be seen that, with the implementation of the apparatus shown in fig. 9, the uplink distribution policy information and the downlink distribution policy information for data transmission in the local area network can be determined based on the session parameters and the protocol parameters, so that data transmission in the local area network is implemented based on the uplink distribution policy information and the downlink distribution policy information, a 5G core network or an independent networking does not need to be additionally deployed, and the deployment difficulty and the complexity of the implementation process can be reduced. In addition, the deployment cost can be reduced, the local area network shunt is realized, the roundabout circulation of private network data in an operator network is avoided, the data privacy can be ensured, and the low-delay communication can be realized.
In an exemplary embodiment of the present application, the signaling monitoring unit 901 monitors signaling of a first specific interface to obtain session parameters for constructing a user data plane session between a base station and a 5GC core network, including:
detecting a base station switching condition of user equipment;
if the base station switching condition is used for indicating that the user equipment is switched from the non-local area base station to the local area base station, monitoring a signaling of the first specific interface to acquire a session parameter for constructing a user data plane session between the local area base station and the 5GC core network.
Therefore, by implementing the optional embodiment, the uplink and downlink traffic channels can be maintained through the switching signaling, so that the user equipment entering the local area network can realize the shunting of the uplink data packet and the downlink data packet in the local area network, thereby improving the response speed of the data packet uploaded/received by the local user equipment.
In an exemplary embodiment of the present application, the apparatus further includes:
a base station handover situation detection unit (not shown) for detecting a base station handover situation of the user equipment;
and a distribution policy updating unit (not shown) configured to update the uplink distribution policy information and the downlink distribution policy information according to the parameter information corresponding to the second local area base station and the parameter information corresponding to the user equipment, when the base station handover situation indicates that the user equipment is handed over from the first local area base station to the second local area base station.
Therefore, by implementing the optional embodiment, the latest uplink distribution strategy information and the latest downlink distribution strategy information can be configured for the user equipment switched by the local base station, so that low-delay communication is ensured, and the use experience of the user is improved.
In an exemplary embodiment of the present application, the apparatus further includes:
a base station handover situation detection unit (not shown) for detecting a base station handover situation of the user equipment;
a termination extracting unit (not shown) for terminating the extraction of the data packet related to the user equipment when the base station switching situation is used for indicating that the user equipment is disconnected with the local area base station.
Therefore, the implementation of the alternative embodiment can cut off the extraction of the data packet related to the user equipment in time, thereby avoiding the waste of network resources.
In an exemplary embodiment of the present application, the parsing the uplink data packet by the uplink data packet processing unit 904 according to the uplink distribution policy information includes:
decapsulating the uplink data packet according to the uplink distribution policy information to obtain a complete data packet which satisfies a preset protocol in the uplink data packet;
extracting specific parts of the complete data message; wherein the particular portion does not contain redundant data;
the specific portion is sent to the local area network.
Therefore, by implementing the optional embodiment, the data packet can be locally shunted based on the uplink distribution strategy, the response delay of the data packet is reduced, the data privacy is ensured, and the response efficiency of the data packet is favorably improved.
In an exemplary embodiment of the present application, the parsing the downlink data packet by the downlink data packet processing unit 905 according to the downlink distribution policy information includes:
packaging the downlink data packet into a target data message meeting a preset protocol according to the downlink distribution strategy information;
and sending the target data message to user equipment or a base station.
Therefore, by implementing the optional embodiment, the data packet can be locally shunted based on the downlink distribution strategy, the response delay of the data packet is reduced, the data privacy is ensured, and the response efficiency of the data packet is favorably improved.
It should be noted that although in the above detailed description several modules or units of the device for action execution are mentioned, such a division is not mandatory. Indeed, the features and functionality of two or more modules or units described above may be embodied in one module or unit, according to embodiments of the application. Conversely, the features and functions of one module or unit described above may be further divided into embodiments by a plurality of modules or units.
For details that are not disclosed in the embodiments of the apparatus of the present application, please refer to the above-mentioned embodiments of the method for implementing GTP communication data packet processing based on signaling assistance in the present application.
As another aspect, the present application also provides a computer-readable medium, which may be contained in the electronic device described in the above embodiments; or may exist separately without being assembled into the electronic device. The computer readable medium carries one or more programs which, when executed by an electronic device, cause the electronic device to implement the method described in the above embodiments.
It should be noted that the computer readable medium shown in the present application may be a computer readable signal medium or a computer readable storage medium or any combination of the two. A computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples of the computer readable storage medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the present application, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device. In this application, however, a computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take many forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device. Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to: wireless, wire, fiber optic cable, RF, etc., or any suitable combination of the foregoing.
The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present application. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams or flowchart illustration, and combinations of blocks in the block diagrams or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
The units described in the embodiments of the present application may be implemented by software, or may be implemented by hardware, and the described units may also be disposed in a processor. Wherein the names of the elements do not in some way constitute a limitation on the elements themselves.
Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the application being indicated by the following claims.
It will be understood that the present application is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the application is limited only by the appended claims.
Claims (10)
1. A method for realizing GTP communication data message processing based on signaling assistance is characterized by comprising the following steps:
monitoring signaling of a first specific interface to acquire session parameters for constructing a user data plane session between a base station and a 5GC core network;
acquiring protocol parameters in a reference uplink data packet sent by the user equipment according to a second specific interface;
determining uplink distribution strategy information and downlink distribution strategy information according to the session parameters and the protocol parameters;
extracting an uplink data packet sent to a local area network by the user equipment according to the uplink distribution strategy information, and analyzing the uplink data packet according to the uplink distribution strategy information;
and extracting a downlink data packet sent to the user equipment by the local area network according to the downlink distribution strategy information, and analyzing the downlink data packet according to the downlink distribution strategy information.
2. The method of claim 1, wherein the protocol parameter comprises a header parameter of a GPRS tunneling protocol.
3. The method of claim 1, wherein monitoring signaling of a first specific interface to obtain session parameters for constructing a user data plane session between a base station and a 5GC core network comprises:
detecting a base station switching condition of the user equipment;
and if the base station switching condition is used for indicating that the user equipment is switched from a non-local area base station to a local area base station, monitoring a signaling of the first specific interface to acquire a session parameter for constructing a user data plane session between the local area base station and the 5GC core network.
4. The method of claim 1, further comprising:
detecting a base station switching condition of the user equipment;
and if the base station switching condition is used for indicating that the user equipment is switched from a first local area base station to a second local area base station, updating the uplink distribution strategy information and the downlink distribution strategy information according to the parameter information corresponding to the second local area base station and the parameter information corresponding to the user equipment.
5. The method of claim 1, further comprising:
detecting a base station switching condition of the user equipment;
and if the base station switching condition is used for indicating that the user equipment is disconnected with the local area base station, stopping extracting the data packet related to the user equipment.
6. The method of claim 1, wherein parsing the upstream data packet according to the upstream distribution policy information comprises:
decapsulating the uplink data packet according to the uplink distribution policy information to obtain a complete data packet which satisfies a preset protocol in the uplink data packet;
extracting specific parts of the complete data message; wherein the particular portion does not contain redundant data;
sending the specific portion to the local area network.
7. The method according to any one of claims 1 to 6, wherein parsing the downstream data packet according to the downstream distribution policy information comprises:
packaging the downlink data packet into a target data message meeting a preset protocol according to the downlink distribution strategy information;
and sending the target data message to the user equipment or the base station.
8. A device for processing GTP communication data messages based on signaling assistance, comprising:
the signaling monitoring unit is used for monitoring the signaling of the first specific interface so as to obtain session parameters for constructing a user data plane session between the base station and the 5GC core network;
an uplink data obtaining unit, configured to obtain, according to a second specific interface, a protocol parameter in a reference uplink data packet sent by the user equipment;
a distribution strategy determining unit, configured to determine uplink distribution strategy information and downlink distribution strategy information according to the session parameter and the protocol parameter;
an uplink data packet processing unit, configured to extract, according to the uplink distribution policy information, an uplink data packet sent by the user equipment to a local area network, and analyze the uplink data packet according to the uplink distribution policy information;
and the downlink data packet processing unit is used for extracting the downlink data packet sent to the user equipment by the local area network according to the downlink distribution strategy information and analyzing the downlink data packet according to the downlink distribution strategy information.
9. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the method of any one of claims 1 to 7.
10. An electronic device, comprising:
a processor; and
a memory for storing executable instructions of the processor;
wherein the processor is configured to perform the method of any of claims 1-7 via execution of the executable instructions.
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