CN113766534B - Network slice mapping method and related device - Google Patents
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Abstract
The embodiment of the application discloses a network slice mapping method and a related device, wherein the method comprises the following steps: the method comprises the steps that a terminal obtains network slice configuration information, wherein the network slice configuration information comprises a corresponding relation between application association information and a network slice, and the application association information refers to information related to an application program; the terminal stores the network slice configuration information; the terminal maps a first data stream of a first application program to a first user equipment routing protocol URSP according to the network slice configuration information to transmit the first data stream. Therefore, the embodiment of the application can establish and manage the mapping relation between the data flow of the application program and the URSP through the network slice, and realize the routing of the data flow of the application program.
Description
Technical Field
The present disclosure relates to the field of communications technologies, and in particular, to a network slice mapping method and a related device.
Background
In the third generation partnership project (3rd Generation Partnership Project,3GPP) protocol, the User equipment routing policy (UE Route Selection Policy, urs p) is one of policy information provided by the core network (abbreviated as 5 GC) of the fifth generation mobile communication system from the policy control function (policy control function, PCF) network element to the User Equipment (UE). The UE uses this policy to determine how to route the data outbound path.
Currently, 3GPP protocols agree that, for the urs, data streams of different applications are routed to different protocol data units (Protocol Data Unit, PDU) session according to the different urs, so that transmission of the data streams of the applications is achieved.
The current protocol does not specify how the mapping between the data stream of the application and the urs are established and managed.
Disclosure of Invention
The embodiment of the application provides a network slice mapping method and a related device, which aim to establish and manage a mapping relation between a data stream of an application program and a URSP through a network slice and realize the routing of the data stream of the application program.
In a first aspect, an embodiment of the present application provides a network slice mapping method, including:
the method comprises the steps that a terminal obtains network slice configuration information, wherein the network slice configuration information comprises a corresponding relation between application association information and a network slice, and the application association information refers to information related to an application program;
the terminal stores the network slice configuration information;
the terminal maps a first data stream of a first application program to a first user equipment routing protocol URSP according to the network slice configuration information to transmit the first data stream.
In a second aspect, an embodiment of the present application provides a network slice mapping apparatus, including:
an obtaining unit, configured to obtain network slice configuration information, where the network slice configuration information includes a correspondence between application association information and a network slice, and the application association information is information related to an application program;
and the storage unit is used for storing the network slice configuration information.
In a third aspect, embodiments of the present application provide a terminal comprising a processor, a memory, a communication interface, and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the processor, the programs comprising instructions for performing the steps in any of the methods of the first aspect of embodiments of the present application.
In a fourth aspect, embodiments of the present application provide a chip, including: and a processor for calling and running a computer program from the memory, so that the device on which the chip is mounted performs some or all of the steps as described in any of the methods of the first aspect of the embodiments of the present application.
In a fifth aspect, embodiments of the present application provide a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program for electronic data exchange, wherein the computer program causes a computer to perform some or all of the steps as described in any of the methods of the first aspect of embodiments of the present application.
In a sixth aspect, embodiments of the present application provide a computer program, wherein the computer program is operable to cause a computer to perform some or all of the steps as described in any of the methods of the first aspect of the embodiments of the present application. The computer program may be a software installation package.
It can be seen that, in the embodiment of the present application, the terminal first obtains the configuration information of the network slice, where the configuration information of the network slice includes a correspondence between application association information and the network slice, and the application association information refers to information related to an application program; and secondly, the terminal stores the network slice configuration information, and finally, the terminal maps the first data stream of the first application program to the first URSP according to the network slice configuration information so as to transmit the first data stream. It can be seen that the terminal can establish and manage the mapping relationship between the data stream of the application program and the urs through the network slice, so as to realize the routing of the data stream of the application program.
Drawings
The drawings that accompany the embodiments or the prior art description can be briefly described as follows.
Fig. 1A is a schematic structural diagram of an exemplary communication system provided in an embodiment of the present application;
Fig. 1B is a schematic structural diagram of a terminal according to an embodiment of the present application;
fig. 1C is a schematic diagram of a core network side architecture according to an embodiment of the present application;
FIG. 1D is a routing diagram of a protocol-agreed PDU-based session transport data stream provided by an embodiment of the present application;
fig. 2A is a flow chart of a network slice mapping method according to an embodiment of the present application;
fig. 2B is a flowchart of another network slice mapping method according to an embodiment of the present application;
fig. 2C is a flowchart of another network slice mapping method according to an embodiment of the present application;
fig. 2D is a flowchart of another network slice mapping method according to an embodiment of the present application;
fig. 2E is a flowchart of another network slice mapping method according to an embodiment of the present application;
fig. 2F is a flowchart of another network slice mapping method according to an embodiment of the present application;
fig. 3 is a functional unit composition block diagram of a network slice mapping device according to an embodiment of the present application;
fig. 4 is a functional unit composition block diagram of another network slice mapping apparatus provided in an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings.
The definitions or explanations of the concepts and terms referred to in this application are as follows.
Network sliceAccording to the requirements of different service applications on indexes such as user number, qoS, bandwidth and the like, the physical network is cut into a plurality of mutually independent logic networks, and particularly an operator can separate a plurality of virtual end-to-end networks on a unified infrastructure, and each network slice is logically isolated from a wireless access network, a bearing network and a core network so as to adapt to various types of applications. In one network slice, the method can be divided into at least three parts of a wireless network sub-slice, a bearing network sub-slice and a core network sub-slice.
User equipment routing options strategy (UE Route Selection Policy, urs p)Is one of the policy information provided by the 5G core network 5GC from the policy control function entity (Policy Control Function, PCF) to the User Equipment (UE). The UE uses this policy to determine how to route the data outbound path. The UE may determine whether the detected application may be associated with an already established PDU session, whether it may be routed to a non-3GPP path other than the PDU session, or whether a new PDU session may be established by means of the urs rules. One important input data in the urs rules is parameters in the path descriptor (Traffic Descriptor, TD) that can be applied to the originating network request Carrying the medicine when in time. After the operating system obtains Traffic Descriptor parameters associated with the application program, and the UE obtains the urs rule list from the network, matches the corresponding routing descriptor RSD according to the rules evaluated by the urs, and then selects the data route according to the routing path indicated by the RSD parameters.
Application program APPRefers to various applications installed by the device, such as video applications, browser applications, and the like.
Protocol data unit (Protocol Data Unit, PDU)Refers to the units of data transferred between peer levels. The PDU of the physical layer is a data bit, the PDU of the data link layer is a data frame, the PDU of the network layer is a data packet, the PDU of the transport layer is a data segment, and the other higher layer PDUs are data.
PDU SessionIs the granularity unit of the slicing network in the fifth generation 5G mobile communication system.
The embodiments of the present application may be applied to various mobile communication systems, for example: global system for mobile communications (Global System of Mobile communication, GSM), code division multiple access (Code Division Multiple Access, CDMA) system, wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA) system, general packet Radio service (General Packet Radio Service, GPRS), long term evolution (Long Term Evolution, LTE) system, long term evolution advanced (Advanced long term evolution, LTE-a) system, new Radio (NR) system, evolution system of NR system, LTE-based access to unlicensed spectrum, LTE-U) system over unlicensed spectrum, NR (NR-based access tounlicensed spectrum, NR-U) system over unlicensed spectrum, universal mobile telecommunication system (Universal Mobile Telecommunication System, UMTS), next generation communication system, or other communication system, etc.
Generally, the number of connections supported by the conventional communication system is limited and easy to implement, however, with the development of communication technology, the mobile communication system will support not only conventional communication but also, for example, device-to-Device (D2D) communication, machine-to-machine (Machine to Machine, M2M) communication, machine type communication (Machine Type Communication, MTC), inter-vehicle (Vehicle to Vehicle, V2V) communication, and the like, to which the embodiments of the present application can also be applied. Optionally, the communication system in the embodiment of the present application may be applied to a carrier aggregation (Carrier Aggregation, CA) scenario, a dual connectivity (Dual Connectivity, DC) scenario, and a Stand Alone (SA) fabric scenario.
The frequency spectrum of the application in the embodiments of the present application is not limited. For example, embodiments of the present application may be applied to licensed spectrum as well as unlicensed spectrum.
The technical solution of the embodiment of the present application may be applied to an example communication system 100 as shown in fig. 1A, where the example communication system 100 includes a terminal 101, an access network device 102, and a core network side 103. The terminal 101 shown in this embodiment may access a cell of the access network device 102 and communicate with the access network device 102.
The terminal 101 may be a user equipment, an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote terminal, a mobile device, a user terminal, a wireless communication device, a user agent, or a user device. The terminal may also be a cellular telephone, a cordless telephone, a session initiation protocol (session initiation protocol, SIP) phone, a wireless local loop (wireless local loop, WLL) station, a personal digital assistant (personal digital assistant, PDA), a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, a relay device, an in-vehicle device, a wearable device, a terminal in a future 5G network or a terminal in a future evolved public land mobile network (public land mobile network, PLMN), etc., as the embodiments of the application are not limited in this respect. The terminal mainly comprises an application processor (application processor, AP) and a Modem (Modem) (also comprises a radio frequency system). The application processor is mainly used for processing an application program, instructions of an android operating system and the like, and the modem is mainly used for processing a communication protocol stack. For example, as shown in fig. 1B, the android operating system (e.g., android operating system) in an application processor can be divided into three parts: an application layer, a framework, and a Linux kernel. The details and functions of the above three parts are not described herein. The communication protocol handled by the modem (also referred to as a baseband chip) includes a protocol stack of the control plane and a protocol stack of the user plane, wherein the protocol stacks of the control plane include, but are not limited to, the following protocol layers: a non-access stratum (NAS) layer; a Radio Resource Control (RRC) layer; a service data adaptation protocol (ServiceDataAdaptationProtocol, SDAP) layer; a packet data convergence protocol (Packet Data Convergence Protocol, PDCP) layer; a radio link control (Radio Link Control, RLC) layer; a medium access control (Media Acess Control, MAC) layer; physical PHY layer. The protocol stack of the user plane includes, but is not limited to, the following protocol layers: an SDAP layer; a PDCP layer; an RLC layer; a MAC layer; the PHY layer, wherein the RRC layer, the SDAP layer, the PDCP layer, the RLC layer, the MAC layer, and the PHY layer are collectively referred to AS an access AS layer.
The access network device 102 in this embodiment corresponds to different devices in different systems, and in this embodiment, taking an example that the access network device 102 is applied in a 5G system, the access network device 102 corresponds to a new radio node b (gNB).
The core network side 103 may comprise different network elements in different systems. The access network device 102 in fig. 1A may be connected to a terminal 101, alternatively the access network device 102 may be connected to a plurality of terminals 101. The access network device 102 may be connected to the core network side 103. The terminal 101 and the core network side 103 need to communicate with each other through the access network device 102.
The specific network elements and network slices included on the core network side shown in the present application are exemplarily described below with reference to fig. 1C: in this embodiment, the network element included in the core network side is applied to 5G, and services of 5G are diversified, including internet of vehicles, large-scale internet of things, industrial automation, telemedicine, and the like. These services are not the same in network requirements, such as low latency, high reliability but not high data rate requirements for industrial automation; the high-definition video does not need ultra-low time delay but requires ultra-high speed; some large-scale internet of things do not need to be switched, part of mobility management is a waste of signaling, and so on, so we need to divide one physical network into multiple virtual networks.
A virtual network is regarded as a 'network slice', each network slice is mutually independent, and each network slice is used for customizing and managing network functions according to the requirements of service scenes. It is understood that one network slice corresponds to one or more particular services. There are multiple traffic types for a session currently ongoing by one terminal, and sessions of different traffic types require network slices corresponding to the traffic types to provide services.
For implementing services for sessions of different service types performed by the terminal, as shown in fig. 1C, the core network side 103 includes at least one authentication management function (authentication management function, AMF) network element, at least one session management function (session management function, SMF) network element, and at least one user plane function (user plane function, UPF) network element.
Specifically, the AMF network element is responsible for mobility and access management of the terminal, one AMF network element may support one or more network slices with different service types, and the service types of the network slices supported by the different AMF network elements may be different. Each SMF network element is located in one network slice instance, that is, one SMF network element corresponds to one network slice supported by one AMF network element, and one AMF network element can establish communication connection with multiple SMF network elements.
Alternatively, one SMF network element may be connected to a plurality of AMF network elements, in addition, one SMF network element may be connected to a plurality of UPF network elements, one UPF network element may be connected to one SMF network element, in which case, one SMF network element may manage and control a plurality of UPF network elements, and one UPF network element is managed and controlled by one SMF. The UPF network element may establish a connection with the access network device to enable data transmission with respect to the terminal.
Currently, there are some basic descriptions in 3GPP protocols for urs, according to which different data flows are routed into different PDU sessions (granularity of slice network in 5G is in PDU session units), thereby accessing different network slices. AS shown in fig. 1D, the data flow-a corresponds to the urs 1 (abbreviated AS rule 1 in the figure), the data flow-b corresponds to the urs 2 (abbreviated AS rule 2 in the figure), the data flow-c corresponds to the urs 3 (abbreviated AS rule 3 in the figure), and the data flow-a corresponds to the PDU session-1, the data flow-b corresponds to the PDU session-2, and the data flow-c corresponds to the PDU session-3, wherein the PDU session-1 passes through the UPF-1 functional entity and the access layer entity AS1, the PDU session-2 passes through the UPF-1 functional entity and the access layer entity AS2, and the PDU session-3 passes through the UPF-2 functional entity and the access layer entity AS3. The terminal may perform binding of a connection (e.g., a PDU session) for a particular data stream according to the urs. Different application data flows may differentiate data flow routes using APP ID, destination IP address triplets, or data network name DNN mapping. The protocol then does not specify how the mapping of the data streams of the application and the urs is established and managed.
In view of the foregoing, an embodiment of the present application provides a network slice mapping method, which is described in detail below with reference to the accompanying drawings.
Referring to fig. 2A, fig. 2A is a flowchart of a network slice mapping method according to an embodiment of the present application, as shown in the drawings, the method includes:
step 201, a terminal acquires network slice configuration information, wherein the network slice configuration information comprises a corresponding relation between application association information and a network slice, and the application association information refers to information related to an application program.
The network slice in the network slice configuration information may refer to identification information, type information, and the like of the network slice, which are not limited herein.
The application program may be a system application program pre-installed by the terminal or a third party application program, such as a video application APP, a game APP, a chat APP, etc., which is not limited herein. The APP ID specifically refers to identification information of the APP, such as a name of the APP, and the like.
Wherein the application-related information includes at least one of: the method comprises the steps of identifying an ID of the application program, an Internet Protocol (IP) descriptor of the application program, a data network name DNN to which the application program belongs, a data characteristic of the application program and an application type of the application program.
Step 202, the terminal stores the network slice configuration information.
The storage includes dynamic cache and static storage, for example, the terminal may store the network slice configuration information in a cache of the operating system, or in an external memory of the terminal, which is not limited herein.
In step 203, the terminal maps the first data stream of the first application program to a first user equipment routing protocol urs p according to the network slice configuration information to transmit the first data stream.
In this possible example, the specific implementation of step 203 may be: the method comprises the steps that a first application program of the terminal sends a first data stream to an operating system of local terminal equipment; the operating system of the terminal receives the first data stream and determines first application related information of the first application program according to the first data stream; the first application association information is used as a query identifier, the network slice configuration information is queried, and a first network slice corresponding to the first application association information is obtained; and sending the first network slice to a 3GPP protocol stack of the home terminal device; the 3GPP protocol stack of the terminal receives the first network slice, inquires a preset mapping relation set, and obtains a first URSP matched with the first network slice; binding or establishing a first protocol data unit session according to the first URSP, wherein the mapping relation set comprises a corresponding relation between a network slice and the URSP; the terminal transmits the first data stream over the first protocol data unit session.
The first application and the operating system run on an application processor of the terminal, and the 3GPP protocol stack runs on a baseband chip of the terminal. In this example, when the first application of the terminal initiates data transmission, the first application interacts with the operating system, the operating system interacts with the 3GPP protocol stack, determines an adapted urs according to the network slice configuration information and the mapping relation set, and finally determines a first PDU session, and transmits a first data stream on the first PDU session, so as to implement end-to-end data transmission based on the network slice.
In one possible example, the terminal obtains network slice configuration information, including: the terminal receives the network slice configuration information from a network slice configuration server.
In this possible example, the terminal receiving the network slice configuration information from a network slice configuration server includes: and when the terminal is started, receiving the network slice configuration information from a network slice configuration server.
In this possible example, the network slice configuration server is deployed by an operator or a third party server.
The network slice configuration server may be a functional entity on the core network side, where the functional entity may multiplex an existing functional entity on the core network side, or may be a newly-built functional entity, or may be a dedicated third party server, and may implement communication connection with a terminal through a wireless transmission manner such as a mobile communication network, which is not limited only herein.
It can be seen that, in this example, by constructing a dedicated network slice configuration server to operate and maintain the correspondence between the application association information and the network slices, this manner is more suitable for multi-application multi-slice scenarios, and the slice dynamic adjustment is variable.
In one possible example, the terminal obtains network slice configuration information, including: the terminal acquires prior information of the corresponding relation between the data flow of the application program and the network slice; and the terminal generates the network slice configuration information according to the prior information.
In this possible example, the generating, by the terminal, the network slice configuration information according to the a priori information includes: and the terminal statistically analyzes the prior information through machine learning and deep packet inspection technology to generate the network slice configuration information.
Wherein the a priori information may be historical data of establishment procedures of PDU sessions of other applications, etc., and may be from at least one of the following manners: terminal local storage, network side push, etc.
The machine learning algorithm may be, for example, a regression algorithm, etc., the deep packet inspection technology, i.e., DPI technology, is an application layer-based traffic inspection and control technology, and when an IP packet, a transmission control protocol TCP, or a packet datagram UDP data stream passes through a bandwidth management system based on DPI technology, the system reorganizes application layer information in an OSI seven-layer protocol by deep reading the content of an IP packet payload, thereby obtaining the content of an entire application program, and then performs a shaping operation on traffic according to a management policy defined by the system.
It can be seen that in this example, the terminal can self-learn network slice configuration information in such a way that a suitable slice is stable and a scene is fixed, and the terminal already has a certain amount of a priori information about the correspondence of the data stream network slices. From the priori knowledge, the corresponding relation between the data characteristics and the network slice is self-learned and maintained through machine learning and deep packet inspection technology.
It can be seen that, in this embodiment, the terminal first obtains network slice configuration information, where the network slice configuration information includes a correspondence between application association information and a network slice, and the application association information refers to information related to an application program; and secondly, the terminal stores the network slice configuration information, and finally, the terminal maps the first data stream of the first application program to the first URSP according to the network slice configuration information so as to transmit the first data stream. It can be seen that the terminal can establish and manage the mapping relationship between the data stream of the application program and the urs through the network slice, so as to realize the routing of the data stream of the application program.
The network slice mapping method of the present application is further described below in connection with specific examples.
As shown in fig. 2B, the network slice mapping method provided in the embodiment of the present application includes the following steps:
Step 21, the terminal is powered on and sends a preset message (e.g. cell registration request, etc.) to the network slice configuration server.
Step 22, the network slice configuration server receives the preset message and transmits network slice configuration information to the terminal, wherein the network slice configuration information includes an ID of the application program.
And step 23, the terminal receives the network slice configuration information and updates the network slice configuration information of the local terminal to obtain updated network slice configuration information.
And step 24, the terminal stores the updated network slice configuration information.
In step 25, the first application APP-1 of the terminal sends a first data stream to the operating system of the local device.
Step 26, the operating system of the terminal receives the first data stream and determines the APP-1ID of the first application program according to the first data stream; inquiring the network slice configuration information by taking the APP-1ID as an inquiry identifier, and acquiring a first network slice corresponding to the APP-1ID; and sending the first network slice to a 3GPP protocol stack of the home terminal device.
Step 27, the 3GPP protocol stack of the terminal receives the first network slice, queries a preset mapping relation set, and obtains a first urs matched with the first network slice; and executing binding or establishing of the first protocol data unit session according to the first URSP, wherein the mapping relation set comprises a corresponding relation between the network slice and the URSP.
Step 28, the terminal transmits the first data stream over the first protocol data unit session.
In this example, the terminal can maintain the network slice configuration information through the server, query the network slice configuration information through the ID of the application program to determine an adapted network slice, query a preset mapping relation set through the adapted network slice, determine an adapted urs p, and finally determine a PDU session for transmitting the data stream according to the urs p.
As shown in fig. 2C, the network slice mapping method provided in the embodiment of the present application includes the following steps:
step 31, the terminal is powered on and sends a preset message (e.g. a cell registration request, etc.) to the network slice configuration server.
And step 32, the network slice configuration server receives a preset message and transmits network slice configuration information to the terminal, wherein the network slice configuration information comprises an IP descriptor of the application program.
And step 33, the terminal receives the network slice configuration information and updates the network slice configuration information of the local terminal to obtain updated network slice configuration information.
And step 34, the terminal stores the updated network slice configuration information.
Step 35, the second application program APP-2 of the terminal sends a second data stream to the operating system of the local terminal device.
Step 36, the operating system of the terminal receives the second data stream and determines an APP-2IP descriptor of the first application program according to the first data stream; inquiring the network slice configuration information by taking the APP-2IP descriptor as an inquiry identifier, and acquiring a second network slice corresponding to the APP-2IP descriptor; and sending the second network slice to a 3GPP protocol stack of the home terminal device.
Step 37, the 3GPP protocol stack of the terminal receives the second network slice, queries a preset mapping relation set, and obtains a second urs matched with the second network slice; and performing binding or establishment of a second protocol data unit session according to the second urs.
Step 38, the terminal transmits the second data stream over the second protocol data unit session.
In this example, the terminal can maintain the network slice configuration information through the server, query the network slice configuration information through the IP descriptor of the application program to determine an adapted network slice, query a preset mapping relation set through the adapted network slice, determine an adapted urs p, and finally determine a PDU session for transmitting the data stream according to the urs p.
As shown in fig. 2D, the network slice mapping method provided in the embodiment of the present application includes the following steps:
in step 41, the terminal is powered on and sends a preset message (e.g., a cell registration request, etc.) to the network slice configuration server.
Step 42, the network slice configuration server receives the preset message and issues network slice configuration information to the terminal, where the network slice configuration information includes DNNs to which the application program belongs.
And 43, the terminal receives the network slice configuration information and updates the network slice configuration information of the local terminal to obtain updated network slice configuration information.
And step 44, the terminal stores the updated network slice configuration information.
Step 45, the third application program APP-3 of the terminal sends a third data stream to the operating system of the local terminal device.
Step 46, the operating system of the terminal receives the third data stream and determines the DNN to which APP-3 of the third application program belongs according to the second data stream; inquiring the network slice configuration information by taking DNN (deoxyribonucleic acid) to which the APP-3 belongs as an inquiry identifier, and acquiring a third network slice corresponding to the DNN to which the APP-3 belongs; and sending the third network slice to a 3GPP protocol stack of the home terminal device.
Step 47, the 3GPP protocol stack of the terminal receives the third network slice, queries a preset mapping relation set, and obtains a third urs matched with the third network slice; and performing binding or establishment of a third protocol data unit session according to the third urs.
Step 48, the terminal transmits the third data stream over the third protocol data unit session.
In this example, the terminal can maintain the network slice configuration information through the server, query the network slice configuration information through the DNN to which the application belongs to determine an adapted network slice, query a preset mapping relation set through the adapted network slice, determine an adapted urs p, and finally determine a PDU session for transmitting the data stream according to the urs p.
As shown in fig. 2E, the network slice mapping method provided in the embodiment of the present application includes the following steps:
in step 51, the terminal obtains prior information of the correspondence between the data flow of the application program and the network slice, where the prior information includes the correspondence between the data feature of the application program and the network slice.
And step 52, the terminal statistically analyzes the prior information through machine learning and deep packet inspection technology to generate the network slice configuration information, wherein the network slice configuration information comprises the data characteristics of the application program.
And step 53, the terminal stores the network slice configuration information.
In step 54, the fourth application APP-4 of the terminal sends a fourth data stream to the operating system of the local device.
Step 55, the operating system of the terminal receives the fourth data stream and determines the data characteristics of the fourth application program according to the fourth data stream; and inquiring the network slice configuration information by taking the data characteristics of the fourth application program as an inquiry identifier to obtain a fourth network slice corresponding to the data characteristics of the fourth application program; and sending the fourth network slice to a 3GPP protocol stack of the home terminal device.
The data characteristics may be obtained by analyzing protocol information characteristics and data message characteristics of the fourth data stream, and specifically may include at least one of the following indexes: protocol type, data traffic, bandwidth, latency, etc.
Step 56, the 3GPP protocol stack of the terminal receives the fourth network slice, queries a preset mapping relation set, and obtains a fourth urs p matched with the fourth network slice; and performing binding or establishment of a fourth protocol data unit session according to the fourth urs.
Step 57, the terminal transmits the fourth data stream on the fourth protocol data unit session.
In this example, the terminal can maintain the network slice configuration information through self-learning, query the network slice configuration information through the data features of the application program to determine an adapted network slice, query a preset mapping relation set through the adapted network slice to determine an adapted urs p, and finally determine a PDU session for transmitting the data stream according to the urs p.
As shown in fig. 2F, the network slice mapping method provided in the embodiment of the present application includes the following steps:
in step 61, the terminal obtains prior information of the correspondence between the data stream of the application program and the network slice, where the prior information includes the correspondence between the application type of the application program and the network slice.
And step 62, the terminal statistically analyzes the prior information through machine learning and deep packet inspection technology to generate the network slice configuration information, wherein the network slice configuration information comprises the application type of the application program.
Step 63, the terminal stores the network slice configuration information.
In step 64, the fifth application APP-5 of the terminal sends a fifth data stream to the operating system of the local device.
Step 65, the operating system of the terminal receives the fifth data stream and determines the application type of the fifth application program according to the fifth data stream; and inquiring the network slice configuration information by taking the application type of the fifth application program as an inquiry identifier to obtain a fifth network slice corresponding to the application type of the fifth application program; and sending the fifth network slice to a 3GPP protocol stack of the home terminal device.
Step 66, the 3GPP protocol stack of the terminal receives the fifth network slice, queries a preset mapping relation set, and obtains a fifth urs matched with the fifth network slice; and performing binding or establishment of a fifth protocol data unit session according to the fifth urs.
Step 67, the terminal transmits the fifth data stream on the fifth protocol data unit session.
In this example, the terminal can maintain the network slice configuration information through self-learning, query the network slice configuration information through application type of the application program to determine an adapted network slice, query a preset mapping relation set through the adapted network slice to determine an adapted urs p, and finally determine a PDU session for transmitting the data stream according to the urs p.
The embodiment of the application provides a network slice mapping device, which can be a terminal. Specifically, the network slice mapping device is configured to perform the steps performed by the terminal in the above network slice mapping method. The network slice mapping device provided by the embodiment of the application can comprise modules corresponding to the corresponding steps.
The embodiment of the application may divide the functional modules of the network slice mapping device according to the above method example, for example, each functional module may be divided corresponding to each function, or two or more functions may be integrated into one processing module. The integrated modules may be implemented in hardware or in software functional modules. The division of the modules in the embodiment of the present application is schematic, which is merely a logic function division, and other division manners may be implemented in practice.
Fig. 3 shows a possible configuration diagram of the network slice mapping apparatus involved in the above-described embodiment in the case where respective functional blocks are divided with corresponding respective functions. As shown in fig. 3, the network slice mapping apparatus 3 includes an acquisition unit 30, a storage unit 31 and a mapping unit 32,
An obtaining unit 30, configured to obtain network slice configuration information, where the network slice configuration information includes a correspondence between application association information and a network slice, and the application association information refers to information related to an application program;
a storage unit 31, configured to store the network slice configuration information.
The mapping unit 32 is configured to map the first data stream of the first application program to the first user equipment routing protocol urs to transmit the first data stream according to the network slice configuration information.
In one possible example, in terms of the acquiring network slice configuration information, the acquiring unit 30 is specifically configured to: the network slice configuration information is received from a network slice configuration server.
In one possible example, in terms of said receiving said network slice configuration information from a network slice configuration server, said obtaining unit 30 is specifically configured to: and receiving the network slice configuration information from a network slice configuration server when the computer is started.
In one possible example, the network slice configuration server is deployed by an operator or a third party server.
In one possible example, in terms of the acquiring network slice configuration information, the acquiring unit 30 is specifically configured to: acquiring prior information of the corresponding relation between the data flow of the application program and the network slice; and generating the network slice configuration information according to the prior information.
In one possible example, in terms of the generating the network slice configuration information from the prior information, the obtaining unit 30 is specifically configured to: and statistically analyzing the prior information through machine learning and deep packet inspection technology to generate the network slice configuration information.
In one possible example, in said mapping the first data flow of the first application program to the first user equipment routing protocol urs p according to the network slice configuration information for transmitting the first data flow, the mapping unit 32 is specifically configured to: configuring a first application program to send a first data stream to an operating system of the local terminal device; the operating system is configured to receive the first data stream and determine first application related information of the first application program according to the first data stream; the first application association information is used as a query identifier, the network slice configuration information is queried, and a first network slice corresponding to the first application association information is obtained; and sending the first network slice to a 3GPP protocol stack of the home terminal device; the 3GPP protocol stack is configured to receive the first network slice, query a preset mapping relation set and acquire a first URSP matched with the first network slice; binding or establishing a first protocol data unit session according to the first URSP, wherein the mapping relation set comprises a corresponding relation between a network slice and the URSP; and transmitting the first data stream over the first protocol data unit session.
In one possible example, the application-related information includes at least one of:
the method comprises the steps of identifying an ID of the application program, an Internet Protocol (IP) descriptor of the application program, a data network name DNN to which the application program belongs, a data characteristic of the application program and an application type of the application program.
All relevant contents of each step related to the above method embodiment may be cited to the functional description of the corresponding functional module, which is not described herein.
In the case of using an integrated unit, a schematic structural diagram of the network slice mapping device provided in the embodiment of the present application is shown in fig. 4. In fig. 4, the network slice mapping apparatus 4 includes: a processing module 40 and a communication module 41. The processing module 40 is configured to control and manage actions of the network slice mapping device, e.g., steps performed by the acquisition unit 30, the storage unit 31, and/or other processes for performing the techniques described herein. The communication module 41 is used to support interactions between the network slice mapping apparatus and other devices. As shown in fig. 4, the network slice mapping device may further include a storage module 42, where the storage module 42 is configured to store program codes and data of the network slice mapping device, for example, the content stored in the storage unit 31.
The processing module 40 may be a processor or controller, such as a central processing unit (Central Processing Unit, CPU), a general purpose processor, a digital signal processor (Digital Signal Processor, DSP), an ASIC, an FPGA or other programmable logic device, a transistor logic device, a hardware component, or any combination thereof. Which may implement or perform the various exemplary logic blocks, modules, and circuits described in connection with this disclosure. The processor may also be a combination that performs the function of a computation, e.g., a combination comprising one or more microprocessors, a combination of a DSP and a microprocessor, and the like. The communication module 41 may be a transceiver, an RF circuit, a communication interface, or the like. The memory module 42 may be a memory.
All relevant contents of each scenario related to the above method embodiment may be cited to the functional description of the corresponding functional module, which is not described herein. The network slice mapping device 3 and the network slice mapping device 4 may perform the steps performed by the terminal in the network slice mapping method shown in fig. 2A, 2B, 2C, 2D, 2E, and 2F.
The embodiment of the application also provides a chip, wherein the chip comprises a processor, and the processor is used for calling and running the computer program from the memory, so that the device provided with the chip executes part or all of the steps described by the terminal in the embodiment of the method.
The embodiment of the application also provides a computer readable storage medium, wherein the computer readable storage medium stores a computer program for electronic data exchange, and the computer program makes a computer execute part or all of the steps described by a terminal in the embodiment of the method.
The embodiment of the application also provides a computer readable storage medium, wherein the computer readable storage medium stores a computer program for electronic data exchange, and the computer program makes a computer execute part or all of the steps described by the network side device in the embodiment of the method.
Embodiments of the present application also provide a computer program product, wherein the computer program product comprises a computer program operable to cause a computer to perform some or all of the steps described by the terminal in the above method embodiments. The computer program product may be a software installation package.
The steps of a method or algorithm described in the embodiments of the present application may be implemented in hardware, or may be implemented by executing software instructions by a processor. The software instructions may be comprised of corresponding software modules that may be stored in random access Memory (Random Access Memory, RAM), flash Memory, read Only Memory (ROM), erasable programmable Read Only Memory (Erasable Programmable ROM), electrically Erasable Programmable Read Only Memory (EEPROM), registers, hard disk, a removable disk, a compact disc Read Only Memory (CD-ROM), or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. In the alternative, the storage medium may be integral to the processor. The processor and the storage medium may reside in an ASIC. In addition, the ASIC may reside in an access network device, a target network device, or a core network device. It is of course also possible that the processor and the storage medium reside as discrete components in an access network device, a target network device, or a core network device.
Those of skill in the art will appreciate that in one or more of the above examples, the functions described in the embodiments of the present application may be implemented, in whole or in part, in software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, produces a flow or function in accordance with embodiments of the present application, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by a wired (e.g., coaxial cable, fiber optic, digital subscriber line (Digital Subscriber Line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that contains an integration of one or more available media. The usable medium may be a magnetic medium (e.g., a floppy Disk, a hard Disk, a magnetic tape), an optical medium (e.g., a digital video disc (Digital Video Disc, DVD)), or a semiconductor medium (e.g., a Solid State Disk (SSD)), or the like.
The foregoing embodiments have been provided for the purpose of illustrating the embodiments of the present application in further detail, and it should be understood that the foregoing embodiments are merely illustrative of the embodiments of the present application and are not intended to limit the scope of the embodiments of the present application, and any modifications, equivalents, improvements, etc. made on the basis of the technical solutions of the embodiments of the present application are included in the scope of the embodiments of the present application.
Claims (8)
1. A network slice mapping method, comprising:
the terminal obtains network slice configuration information, including: acquiring prior information of a corresponding relation between a data flow of an application program and a network slice, wherein the prior information comprises the corresponding relation between data characteristics of the application program and the network slice; statistically analyzing the prior information through machine learning and deep packet inspection technology to generate the network slice configuration information, wherein the network slice configuration information comprises data characteristics of an application program;
the terminal stores the network slice configuration information;
the terminal maps a first data stream of a first application program to a first user equipment routing protocol URSP according to the network slice configuration information to transmit the first data stream, and the method comprises the following steps: the method comprises the steps that a first application program of the terminal sends a first data stream to an operating system of local terminal equipment; the operating system of the terminal receives the first data stream and determines the data characteristics of the first application program according to the protocol information characteristics and the data message characteristics of the first data stream; the data characteristics of the first application program are used as query identifications, the network slice configuration information is queried, and a first network slice corresponding to the data characteristics of the first application program is obtained; and sending the first network slice to a 3GPP protocol stack of the home terminal device; the 3GPP protocol stack of the terminal receives the first network slice, inquires a preset mapping relation set, and obtains a first URSP matched with the first network slice; binding or establishing a first protocol data unit session according to the first URSP, wherein the mapping relation set comprises a corresponding relation between a network slice and the URSP; the terminal transmits the first data stream over the first protocol data unit session.
2. The method of claim 1, wherein the terminal obtains network slice configuration information, comprising:
the terminal receives the network slice configuration information from a network slice configuration server.
3. The method of claim 2, wherein the terminal receiving the network slice configuration information from a network slice configuration server comprises:
and when the terminal is started, receiving the network slice configuration information from a network slice configuration server.
4. A method according to claim 2 or 3, wherein the network slice configuration server is deployed by an operator or a third party service provider.
5. The method of claim 1, wherein the application-related information further comprises at least one of:
the method comprises the steps of identifying an ID of the application program, an Internet Protocol (IP) descriptor of the application program, a data network name DNN to which the application program belongs and an application type of the application program.
6. A network slice mapping apparatus, comprising:
an obtaining unit, configured to obtain network slice configuration information, including: acquiring prior information of a corresponding relation between a data flow of an application program and a network slice, wherein the prior information comprises the corresponding relation between data characteristics of the application program and the network slice; statistically analyzing the prior information through machine learning and deep packet inspection technology to generate the network slice configuration information, wherein the network slice configuration information comprises data characteristics of an application program;
The storage unit is used for storing the network slice configuration information;
a mapping unit, configured to map a first data stream of a first application program to a first user equipment routing protocol urs p according to the network slice configuration information to transmit the first data stream, including: a first application program of the device sends a first data stream to an operating system of local equipment; the operating system of the device receives the first data stream and determines the data characteristics of the first application program according to the protocol information characteristics and the data message characteristics of the first data stream; the data characteristics of the first application program are used as query identifications, the network slice configuration information is queried, and a first network slice corresponding to the data characteristics of the first application program is obtained; and sending the first network slice to a 3GPP protocol stack of the home terminal device; the 3GPP protocol stack of the device receives the first network slice, inquires a preset mapping relation set, and obtains a first URSP matched with the first network slice; binding or establishing a first protocol data unit session according to the first URSP, wherein the mapping relation set comprises a corresponding relation between a network slice and the URSP; the apparatus transmits the first data stream over the first protocol data unit session.
7. A terminal comprising a processor, a memory, a communication interface, and one or more programs stored in the memory and configured to be executed by the processor, the programs comprising instructions for performing the steps in the method of any of claims 1-5.
8. A computer-readable storage medium, characterized in that it stores a computer program for electronic data exchange, wherein the computer program causes a computer to perform the method according to any one of claims 1-5.
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| CN116366445A (en) * | 2021-12-21 | 2023-06-30 | 中兴通讯股份有限公司 | Slice configuration method, system, server and storage medium |
| CN116419268A (en) * | 2021-12-30 | 2023-07-11 | 维沃移动通信有限公司 | Method, device, terminal and network element for monitoring and reporting URSP rule |
| CN114828010B (en) * | 2022-04-24 | 2023-10-03 | 中国电信股份有限公司 | Method for safely accessing network slice based on application attribute and related equipment |
| CN114928871B (en) * | 2022-05-13 | 2024-02-06 | 中国电信股份有限公司 | Method for relaying traffic, network access method, terminal, medium and device |
| CN114978911B (en) * | 2022-05-20 | 2024-03-08 | 中国联合网络通信集团有限公司 | Correlation method of network slices, equipment main body, communication module and terminal equipment |
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