CN114615352A - Service data message transmission method and network equipment - Google Patents
Service data message transmission method and network equipment Download PDFInfo
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- H—ELECTRICITY
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Abstract
The invention provides a transmission method of a service data message and network equipment, wherein the transmission method of the service data message comprises the following steps: before forwarding a service data message of a user terminal to an IP bearing network, adding an IP address and a slice network identifier of the user terminal in an IP extension header of the service data message to obtain a processed service data message; and forwarding the processed service data message to an IP bearing network. In the invention, the IP bearing network equipment and the service provider network equipment can also sense the IP address of the user terminal and the slicing network identification, thereby determining the QoS level corresponding to the slicing network, forwarding the service data message according to the determined QoS level and providing end-to-end network quality guarantee.
Description
Technical Field
The embodiment of the invention relates to the technical field of transmission and Internet Protocol (IP), in particular to a method and a network device for transmitting a service data message.
Background
As shown in fig. 1, in the 5G end-to-end networking, a forwarding path of a service data packet of a user is:
an uplink direction: the user terminal (IP _ UE) sends the service data message to the base station (IP _ Node), then to the transmission network, the core network, the IP bearing network, and finally to the service provider network (such as data center network);
the downlink direction is as follows: after receiving the service request of the user, the service provider network returns the service content to the IP bearer network, and finally reaches the user terminal through the core network, the transmission network and the wireless network.
The processing of the service data message in the forwarding process in the uplink and downlink directions is as follows:
(1) when a user terminal accesses a certain Server (Server) in a service provider network, the user terminal sends a service data message to a base station, and the format of the service data message is shown in fig. 1, wherein Ethernet Header is an Ethernet Header, SIP IP _ UE is a source IP address, i.e., a terminal IP address, DIP IP _ Ser is a destination IP address, i.e., a Server IP address, and Payload is a data Payload.
(2) After receiving a service data packet of a terminal, a base station encapsulates a GTP (GPRS Tunnel Protocol) packet header, adds a Virtual Local Area Network (VLAN) ID to a packet according to a correspondence between the 5G slice ID and the VLAN ID, identifies the 5G slice (see fig. 3), and outputs the 5G slice to a transmission Network.
Here, the VLAN ID is used to indicate a certain 5G slice. IP _ Node is source IP address, namely base station IP address, DIP is IP _ UPF is destination IP address, namely 5G core network UPF (User Plane Function) IP address; UDP Header and GTP Header are UDP and GTP Header, respectively, and other fields may refer to the description in fig. 1.
(3) After receiving the service data packet of the transmission network, the core network UPF (User Plane Function) removes GTP and UDP headers to obtain an original service data packet sent by the terminal, as shown in fig. 1.
(4) Before the service data message of the terminal is sent to the IP bearer network, in order to protect the user privacy and the user data security, the firewall performs address conversion, and converts the terminal address into an address that can be exposed, as shown in fig. 4, wherein IP _ Pub is the IP address converted by the firewall, i.e., the address that can be safely transmitted in the public network, and the contents of other fields refer to the description in fig. 1.
So far, the service data message sent from the terminal is transformed for many times, and the service data message sent from the 5G core network to the IP bearing network and the service provider network does not carry the terminal IP address information and the slice network information.
The downlink direction is similar to the uplink direction, the service data message sent from the service provider server to the user terminal does not contain terminal IP address information and slice network information, only the firewall can replace the destination address of the service data message with the terminal IP address, and the core network UFP adds the VLAN ID representing the slice identifier into the service data message. Therefore, in the uplink and downlink forwarding paths, the IP bearer network and the service provider network cannot sense the terminal address information and the slice network information, and cannot provide reliable network guarantee service for the terminal purchasing the 5G slice service.
Disclosure of Invention
The embodiment of the invention provides a transmission method of a service data message and network equipment, which are used for solving the problem that a user can only provide high-quality network transmission from a user terminal to a 5G core network, but an IP bearing network and a service provider network cannot guarantee the transmission quality of the user network because the IP bearing network and the service provider network cannot sense the IP address information of the terminal and the network slice identifier, namely the end-to-end network quality of user service cannot be realized.
In order to solve the technical problem, the invention is realized as follows:
in a first aspect, an embodiment of the present invention provides a method for transmitting a service data packet, where the method is applied to a core network function, and includes:
before forwarding a service data message of a user terminal to an IP bearing network, adding an IP address and a slice network identifier of the user terminal in an IP extension header of the service data message to obtain a processed service data message;
and forwarding the processed service data message to an IP bearing network.
Optionally, the slice network identifier is a VLAN ID.
Optionally, the IP address of the ue added to the IP extension header is an encrypted IP address.
Optionally, the IP extension header is an IPv6 extension header, and the extension header includes: the system comprises a user terminal IP address field and a slicing network identification field, wherein the length of the user terminal IP address field is 16 bytes, and the length of the slicing network identification field is 2 bytes.
In a second aspect, an embodiment of the present invention provides a method for transmitting a service data packet, where the method is applied to an IP bearer network device or a service provider network device, and includes:
receiving an uplink or downlink service data message;
acquiring an IP address and a slice network identifier of a user terminal carried in an IP extension header of the service data message;
and forwarding the service data message according to the IP address of the user terminal and the slice network identifier.
Optionally, when applied to a service provider network device, after receiving an uplink service data packet, the method further includes:
adding the IP address and the slice network identification of the user terminal in an IP extension header of a downlink service data message to obtain a processed service data message;
and forwarding the processed service data message according to the IP address of the user terminal and the slice network identifier.
Optionally, the slice network identifier is a VLAN ID.
Optionally, the IP address of the user terminal carried in the IP extension header is an encrypted IP address;
the method further comprises the following steps of after the IP address of the user terminal and the slice network identifier carried in the IP extension header of the service data message are obtained:
and decrypting the IP address of the user terminal.
Optionally, the IP extension header is an IPv6 extension header, and the extension header includes: the system comprises a user terminal IP address field and a slicing network identification field, wherein the length of the user terminal IP address field is 16 bytes, and the length of the slicing network identification field is 2 bytes.
In a third aspect, an embodiment of the present invention provides a core network function, including:
the processing module is used for adding the IP address and the slice network identification of the user terminal in the IP extension header of the service data message before forwarding the service data message of the user terminal to the IP bearing network to obtain a processed service data message;
and the sending module is used for forwarding the processed service data message to an IP bearing network.
Optionally, the slice network identifier is a VLAN ID.
Optionally, the IP address of the ue added to the IP extension header is an encrypted IP address.
Optionally, the IP extension header is an IPv6 extension header, and the extension header includes: the system comprises a user terminal IP address field and a slicing network identification field, wherein the length of the user terminal IP address field is 16 bytes, and the length of the slicing network identification field is 2 bytes.
In a fourth aspect, an embodiment of the present invention provides a core network function, including: a transceiver and a processor;
the processor is used for adding the IP address and the slice network identification of the user terminal in the IP extension header of the service data message before forwarding the service data message of the user terminal to the IP bearing network to obtain a processed service data message;
and the transceiver is used for forwarding the processed service data message to an IP bearing network.
Optionally, the slice network identifier is a VLAN ID.
Optionally, the IP address of the ue added to the IP extension header is an encrypted IP address.
Optionally, the IP extension header is an IPv6 extension header, and the extension header includes: the system comprises a user terminal IP address field and a slicing network identification field, wherein the length of the user terminal IP address field is 16 bytes, and the length of the slicing network identification field is 2 bytes.
In a fifth aspect, an embodiment of the present invention provides a network device, including:
the receiving module is used for receiving the uplink or downlink service data message;
an obtaining module, configured to obtain an IP address and a slice network identifier of a user terminal carried in an IP extension header of the service data packet;
and the first sending module is used for forwarding the service data message according to the IP address of the user terminal and the slice network identifier.
Optionally, when applied to a service provider network device, the network device further includes:
the processing module is used for adding the IP address and the slice network identification of the user terminal in the IP extension header of the next service data message to obtain a processed service data message;
and the second sending module is used for forwarding the processed service data message according to the IP address of the user terminal and the slice network identifier.
Optionally, the slice network identifier is a VLAN ID.
Optionally, the IP address of the user terminal carried in the IP extension header is an encrypted IP address; the network device further includes:
and the decryption module is used for decrypting the IP address of the user terminal.
Optionally, the IP extension header is an IPv6 extension header, and the extension header includes: the system comprises a user terminal IP address field and a slicing network identification field, wherein the length of the user terminal IP address field is 16 bytes, and the length of the slicing network identification field is 2 bytes.
In a sixth aspect, an embodiment of the present invention provides a network device, including: a transceiver and a processor;
the transceiver is used for receiving an uplink or downlink service data message;
the processor is configured to acquire an IP address and a slice network identifier of the user terminal, which are carried in an IP extension header of the service data packet;
the transceiver is further configured to forward the service data packet according to the IP address of the user terminal and the slice network identifier.
Optionally, when the processor is applied to a service provider network device, the processor is further configured to add an IP address and a slice network identifier of the user terminal to an IP extension header of a downlink service data packet, so as to obtain a processed service data packet; the transceiver is further configured to forward the processed service data packet according to the IP address of the user terminal and the slice network identifier.
Optionally, the slice network identifier is a VLAN ID.
Optionally, the IP address of the user terminal carried in the IP extension header is an encrypted IP address; the processor is further configured to decrypt the IP address of the user terminal.
Optionally, the IP extension header is an IPv6 extension header, and the extension header includes: the system comprises a user terminal IP address field and a slicing network identification field, wherein the length of the user terminal IP address field is 16 bytes, and the length of the slicing network identification field is 2 bytes.
In a seventh aspect, an embodiment of the present invention provides a core network function, including: a processor, a memory and a program stored in the memory and executable on the processor, wherein the program, when executed by the processor, implements the steps of the method for transmitting a service data packet according to the first aspect.
In an eighth aspect, an embodiment of the present invention provides a network device, including: a processor, a memory and a program stored on the memory and operable on the processor, wherein the program, when executed by the processor, implements the steps of the method for transmitting a service data packet according to the second aspect.
In a ninth aspect, an embodiment of the present invention provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when being executed by a processor, the computer program implements the steps of the method for transmitting a service data packet according to the first aspect; or, the computer program, when executed by a processor, implements the steps of the method for transmitting a service data packet according to the second aspect.
In the embodiment of the invention, before forwarding the service data message of the user terminal to the IP bearing network, the core network function adds the IP address and the slice network identifier of the user terminal in the IP extension header of the service data message, so that IP bearing network equipment and service provider network equipment can also sense the IP address and the slice network identifier of the user terminal, thereby determining the QoS level corresponding to the slice network, forwarding the service data message according to the determined QoS level and providing end-to-end network quality guarantee.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 is a schematic diagram of a 5G end-to-end networking architecture;
fig. 2 is a schematic diagram of a format of a service data packet sent by a user terminal to a base station;
fig. 3 is a schematic diagram of a format of a service data packet sent by a base station to a transmission network;
fig. 4 is a schematic diagram of a format of a service data packet processed by a firewall;
fig. 5 is a schematic flow chart of a transmission method of a service data packet applied to a core network function according to an embodiment of the present invention;
fig. 6 is a schematic format diagram of an IPv6 header according to an embodiment of the present invention;
fig. 7 is a schematic format diagram of an IPv6 extension header according to an embodiment of the present invention;
fig. 8 is a schematic flow chart of a transmission method of a service data packet applied to an IP bearer network device or a service provider network device according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of core network functions according to an embodiment of the present invention;
fig. 10 is a schematic structural diagram of core network functions according to another embodiment of the present invention;
fig. 11 is a schematic structural diagram of a network device according to an embodiment of the present invention;
fig. 12 is a schematic structural diagram of a network device according to another embodiment of the present invention;
fig. 13 is a schematic structural diagram of core network functions according to yet another embodiment of the present invention;
fig. 14 is a schematic structural diagram of a network device according to another embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 5, an embodiment of the present invention provides a method for transmitting a service data packet, which is applied to a core network function, and includes:
step 51: before forwarding a service data message of a user terminal to an IP bearing network, adding an IP address and a slice network identifier of the user terminal in an IP extension header of the service data message to obtain a processed service data message;
step 52: and forwarding the processed service data message to an IP bearing network.
In the embodiment of the invention, before forwarding the service data message of the user terminal to the IP bearing network, the core network function adds the IP address and the slice network identifier of the user terminal in the IP extension header of the service data message, so that IP bearing network equipment and service provider network equipment can also sense the IP address and the slice network identifier of the user terminal, thereby determining the QoS (quality of service) grade corresponding to the slice network, forwarding the service data message according to the determined QoS grade and providing end-to-end network quality guarantee.
In the embodiment of the present invention, optionally, the core network Function may be a UPF (User Plane Function). In the process of transmitting the service data message of the 5G network, the 5G core network UPF is an intermediate network element connecting the slice network and the IP bearer network, and can sense the IP address and VLAN ID of the user terminal in the uplink forwarding direction (from the user terminal to the server), and can sense the IP address of the user terminal in the downlink forwarding direction (from the server to the user terminal), and insert the VLAN ID.
In the embodiment of the present invention, optionally, the slice Network identifier is a Virtual Local Area Network (VLAN) ID.
In the embodiment of the present invention, optionally, the IP address of the user terminal added to the IP extension header is an encrypted IP address, and is encrypted by hash operation, for example, so as to ensure the information security of the user terminal.
In this embodiment of the present invention, optionally, the IP extension header is an IPv6 extension header, where the extension header includes: the system comprises a user terminal IP address field and a slicing network identification field, wherein the length of the user terminal IP address field is 16 bytes, and the length of the slicing network identification field is 2 bytes.
Referring to fig. 6, fig. 6 is a schematic format diagram of an IPv6 message header according to an embodiment of the present invention, where in the embodiment of the present invention, an IPv6 extension header carries an IP address and a sliced network identifier of a user terminal. The IPv6 extended header realizes optional functions of some IP layers, the extended header is positioned between an IPv6 basic header and Payload, the basic header of IPv6 only carries basic information (such as a source address and a destination address) required by forwarding, and the extended header carries some extended functions. It should be noted that the source address in fig. 6 is SIP IP _ UE in fig. 1, and the destination address is DIP IP _ Ser in fig. 1.
Referring to fig. 7, fig. 7 is a schematic diagram illustrating a format of an IPv6 extension Header according to an embodiment of the present invention, in which an IPv6 extension Header (Next Header) with a length of 20 bytes is defined, where the Next Header: the protocol type of the Next Header is represented, the length is 1 byte, the Hdr Ext Len represents the length of an extended Header (excluding a Next Header), the length is 1 byte, the UE Address represents the IP Address of the terminal (a real IPv6 Address or an encrypted Address), the length is 16 bytes, the VLAN ID identifies the slicing network identifier, and the length is 2 bytes.
The method for transmitting the service data in the embodiment of the invention can be applied to 5G networks, the current 5G networks all support the IPv6 protocol, the reconstruction of the current network is small by using the scheme, and the method is simple to realize.
Of course, it should be noted that the method for transmitting service data in the embodiment of the present invention may also be applied to other subsequent communication systems, and the present invention is not limited thereto.
Referring to fig. 8, an embodiment of the present invention further provides a method for transmitting a service data packet, where the method is applied to an IP bearer network device or a service provider network device, and includes:
step 81: receiving an uplink or downlink service data message;
step 82: acquiring an IP address and a slice network identifier of a user terminal carried in an IP extension header of the service data message;
step 83: and forwarding the service data message according to the IP address of the user terminal and the slicing network identifier.
In the embodiment of the invention, the IP bearing network equipment or the service provider network equipment can also sense the IP address of the user terminal and the slicing network identifier, thereby being capable of determining the QoS level corresponding to the slicing network, forwarding the service data message according to the determined QoS level and providing end-to-end network quality guarantee.
In the upstream direction:
after receiving an uplink service data message sent by a core network function, the IP bearing network equipment analyzes the uplink service data message to obtain an IP address and a slice network identifier of a user terminal carried in an IP extension header of the service data message, determines a QoS (quality of service) grade corresponding to the IP address and the slice network identifier of the user terminal, and forwards the service data message in the IP bearing network according to the determined QoS grade.
After receiving an uplink service data message sent by an IP bearing network device, a service provider network device analyzes the uplink service data message to obtain an IP address of a user terminal and a slice network identifier carried in an IP extension header of the service data message, determines a QoS (quality of service) grade corresponding to the IP address of the user terminal and the slice network identifier, and forwards the service data message according to the determined QoS grade in the service provider network.
In the embodiment of the present invention, if the method for transmitting a service data packet is applied to a service provider network device, the method further includes, after receiving an uplink service data packet:
adding the IP address and the slice network identification of the user terminal in an IP extension header of a downlink service data message to obtain a processed service data message;
and forwarding the processed service data message according to the IP address of the user terminal and the slice network identifier.
I.e. in the downstream direction:
after receiving the uplink service data message, the service provider network equipment analyzes the uplink service data message to obtain the IP address and the slice network identification of the user terminal carried in the IP extension header of the service data message, and adds the IP address and the slice network identification of the user terminal into the downlink service data message of the user terminal; and simultaneously, the service provider network equipment determines the QoS level corresponding to the IP address of the user terminal and the slicing network identifier, and forwards the service data message according to the determined QoS level in the service provider network.
After receiving a downlink service data message sent by a service provider network device, an IP bearer network device analyzes the downlink service data message to obtain an IP address of a user terminal and a slice network identifier carried in an IP extension header of the service data message, determines a QoS (quality of service) grade corresponding to the IP address of the user terminal and the slice network identifier, and forwards the service data message in the IP bearer network according to the determined QoS grade.
In this embodiment of the present invention, optionally, the slice network identifier is a VLAN ID.
In this embodiment of the present invention, optionally, the IP address of the user terminal carried in the IP extension header is an encrypted IP address; the method further comprises the following steps of after the IP address of the user terminal and the slice network identifier carried in the IP extension header of the service data message are obtained: and decrypting the IP address of the user terminal.
In this embodiment of the present invention, optionally, the IP extension header is an IPv6 extension header, where the extension header includes: the system comprises a user terminal IP address field and a slicing network identification field, wherein the length of the user terminal IP address field is 16 bytes, and the length of the slicing network identification field is 2 bytes.
Referring to fig. 9, an embodiment of the present invention provides a core network function 90, including:
a processing module 91, configured to add an IP address and a slice network identifier of a user terminal to an IP extension header of a service data packet before forwarding the service data packet of the user terminal to an IP bearer network, to obtain a processed service data packet;
and a sending module 92, configured to forward the processed service data packet to an IP bearer network.
Optionally, the slice network identifier is a VLAN ID.
Optionally, the IP address of the ue added to the IP extension header is an encrypted IP address.
Optionally, the IP extension header is an IPv6 extension header, and the extension header includes: the system comprises a user terminal IP address field and a slicing network identification field, wherein the length of the user terminal IP address field is 16 bytes, and the length of the slicing network identification field is 2 bytes.
Referring to fig. 10, an embodiment of the present invention provides a core network function 100, including: a transceiver 101 and a processor 102;
the processor 102 is configured to add an IP address and a slice network identifier of the user terminal to an IP extension header of a service data packet before forwarding the service data packet of the user terminal to an IP bearer network, so as to obtain a processed service data packet;
the transceiver 101 is configured to forward the processed service data packet to an IP bearer network.
Optionally, the slice network identifier is a VLAN ID.
Optionally, the IP address of the ue added to the IP extension header is an encrypted IP address.
Optionally, the IP extension header is an IPv6 extension header, and the extension header includes: the system comprises a user terminal IP address field and a slicing network identification field, wherein the length of the user terminal IP address field is 16 bytes, and the length of the slicing network identification field is 2 bytes.
Referring to fig. 11, an embodiment of the present invention provides a network device 110, including:
a receiving module 111, configured to receive an uplink or downlink service data packet;
an obtaining module 112, configured to obtain an IP address and a slice network identifier of a user terminal carried in an IP extension header of the service data packet;
the first sending module 113 is configured to forward the service data packet according to the IP address of the user terminal and the slice network identifier.
Optionally, when applied to a service provider network device, the network device further includes:
the processing module is used for adding the IP address and the slicing network identification of the user terminal in an IP extension header of a next service data message to obtain a processed service data message;
and the second sending module is used for forwarding the processed service data message according to the IP address of the user terminal and the slice network identifier.
Optionally, the slice network identifier is a VLAN ID.
Optionally, the IP address of the user terminal carried in the IP extension header is an encrypted IP address; the network device further includes:
and the decryption module is used for decrypting the IP address of the user terminal.
Optionally, the IP extension header is an IPv6 extension header, and the extension header includes: the system comprises a user terminal IP address field and a slicing network identification field, wherein the length of the user terminal IP address field is 16 bytes, and the length of the slicing network identification field is 2 bytes.
Referring to fig. 12, an embodiment of the present invention provides a network device 120, including: a transceiver 121 and a processor 122;
the transceiver 121 is configured to receive an uplink or downlink service data packet;
the processor 122 is configured to obtain an IP address and a slice network identifier of the user terminal, which are carried in an IP extension header of the service data packet;
the transceiver 121 is further configured to forward the service data packet according to the IP address of the user terminal and the slice network identifier.
Optionally, when the processor is applied to a service provider network device, the processor is further configured to add an IP address and a slice network identifier of the user terminal to an IP extension header of a downlink service data packet, so as to obtain a processed service data packet; the transceiver is further configured to forward the processed service data packet according to the IP address of the user terminal and the slice network identifier.
Optionally, the slice network identifier is a VLAN ID.
Optionally, the IP address of the user terminal carried in the IP extension header is an encrypted IP address; the processor is further configured to decrypt the IP address of the user terminal.
Optionally, the IP extension header is an IPv6 extension header, and the extension header includes: the system comprises a user terminal IP address field and a slicing network identification field, wherein the length of the user terminal IP address field is 16 bytes, and the length of the slicing network identification field is 2 bytes.
Referring to fig. 13, an embodiment of the present invention further provides a core network function 130, which includes a processor 131, a memory 132, and a computer program stored in the memory 132 and capable of running on the processor 131, where the computer program, when executed by the processor 131, implements the processes of the foregoing embodiment of the method for transmitting a service data packet, and can achieve the same technical effects, and therefore, the details are not described herein again to avoid repetition.
Referring to fig. 14, an embodiment of the present invention further provides a network device 140, which includes a processor 141, a memory 142, and a computer program stored in the memory 142 and capable of running on the processor 141, where the computer program, when executed by the processor 141, implements each process of the foregoing embodiment of the method for transmitting a service data packet, and can achieve the same technical effect, and therefore, in order to avoid repetition, details are not repeated here.
The embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements each process of the foregoing embodiment of the method for transmitting a service data packet, and can achieve the same technical effect, and is not described herein again to avoid repetition. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (16)
1. A transmission method of service data message is applied to the core network function, and is characterized in that the method comprises the following steps:
before forwarding a service data message of a user terminal to an IP bearing network, adding an IP address and a slice network identifier of the user terminal in an IP extension header of the service data message to obtain a processed service data message;
and forwarding the processed service data message to an IP bearing network.
2. The method of claim 1, wherein the slice network identification is a VLAN ID.
3. The method of claim 1, wherein the IP address of the ue added to the IP extension header is an encrypted IP address.
4. The method of claim 1, wherein the IP extension header is an IPv6 extension header, and wherein the extension header comprises: the system comprises a user terminal IP address field and a slicing network identification field, wherein the length of the user terminal IP address field is 16 bytes, and the length of the slicing network identification field is 2 bytes.
5. A transmission method of service data message is applied to IP bearing network equipment or service provider network equipment, and is characterized by comprising the following steps:
receiving an uplink or downlink service data message;
acquiring an IP address and a slice network identifier of a user terminal carried in an IP extension header of the service data message;
and forwarding the service data message according to the IP address of the user terminal and the slice network identifier.
6. The method of claim 5, when applied to a service provider network device, further comprising, after receiving an uplink traffic data packet:
adding the IP address and the slice network identification of the user terminal in an IP extension header of a downlink service data message to obtain a processed service data message;
and forwarding the processed service data message according to the IP address of the user terminal and the slice network identifier.
7. The method of claim 5, wherein the slice network identification is a VLAN ID.
8. The method of claim 5, wherein the IP address of the ue carried in the IP extension header is an encrypted IP address;
the method further comprises the following steps of after the IP address of the user terminal and the slice network identifier carried in the IP extension header of the service data message are obtained:
and decrypting the IP address of the user terminal.
9. The method of claim 5, wherein the IP extension header is an IPv6 extension header, and wherein the extension header comprises: the system comprises a user terminal IP address field and a slicing network identification field, wherein the length of the user terminal IP address field is 16 bytes, and the length of the slicing network identification field is 2 bytes.
10. A core network function, comprising:
the processing module is used for adding the IP address and the slice network identification of the user terminal in the IP extension header of the service data message before forwarding the service data message of the user terminal to the IP bearing network to obtain a processed service data message;
and the sending module is used for forwarding the processed service data message to an IP bearing network.
11. A core network function, comprising: a transceiver and a processor;
the processor is used for adding the IP address and the slice network identification of the user terminal in the IP extension header of the service data message before forwarding the service data message of the user terminal to the IP bearing network to obtain a processed service data message;
and the transceiver is used for forwarding the processed service data message to an IP bearing network.
12. A network device, comprising:
the receiving module is used for receiving the uplink or downlink service data message;
an obtaining module, configured to obtain an IP address and a slice network identifier of a user terminal carried in an IP extension header of the service data packet;
and the first sending module is used for forwarding the service data message according to the IP address of the user terminal and the slice network identifier.
13. A network device, comprising: a transceiver and a processor;
the transceiver is used for receiving an uplink or downlink service data message;
the processor is configured to acquire an IP address and a slice network identifier of the user terminal, which are carried in an IP extension header of the service data packet;
the transceiver is further configured to forward the service data packet according to the IP address of the user terminal and the slice network identifier.
14. A core network function, comprising: processor, memory and program stored on the memory and executable on the processor, which when executed by the processor implements the steps of the transmission method of a service data message according to any one of claims 1 to 4.
15. A network device, comprising: processor, memory and program stored on the memory and executable on the processor, which when executed by the processor implements the steps of the method for transmitting a service data message according to any of claims 5 to 9.
16. A computer-readable storage medium, characterized in that the computer-readable storage medium has stored thereon a computer program which, when being executed by a processor, carries out the steps of the transmission method of a service data message according to any one of claims 1 to 4; alternatively, the computer program, when being executed by a processor, implements the steps of the method for transmitting a service data packet according to any one of claims 5 to 9.
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