CN114501493A - Network slice updating method and system, storage medium and electronic device - Google Patents
Network slice updating method and system, storage medium and electronic device Download PDFInfo
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Abstract
The disclosure provides a network slice updating method and system, a storage medium and electronic equipment, and relates to the technical field of wireless communication. The method comprises the following steps: the method comprises the steps that network equipment obtains a virtual tracking area identifier and first network slice information; the network equipment generates and sends an updating request message according to the virtual tracking area identification and the first network slice information; and the network element responds to the updating request message and updates the second network slice information corresponding to the virtual tracking area identification by using the first network slice information in the updating request message. The accuracy and consistency of the access network and the core network to the interaction of the network slice configuration information are improved at least to a certain extent, so that the communication quality is improved.
Description
Technical Field
The present disclosure relates to the field of wireless communication technologies, and in particular, to a method and a system for updating a network slice, a storage medium, and an electronic device.
Background
With the arrival of the fifth generation mobile communication technology (5G), the 5G mobile network can meet the communication requirements of people, and can support the connection of a large number of internet of things devices, so as to provide mobile communication services for thousands of industries, and the bandwidth, delay difference and security isolation requirements of different industries may be different. The network slicing technology provides mutually isolated network environments for different application scenarios by deploying a plurality of virtual networks on a shared infrastructure basis, thereby providing differentiated network services for different businesses or user groups. A Network Slice Selection Function (NSSF) entity may provide slice instance selection and target AMF selection services for an access and mobility management function (AMF) entity of a home network, and the NSSF may provide slice update, subscription, and notification functions for the AMF based on a Tracking Area (TA).
However, the above related technologies cannot guarantee the accuracy and consistency of the access network and the core network for the interaction of the network slice configuration information.
It is to be noted that the information disclosed in the above background section is only for enhancement of understanding of the background of the present disclosure, and thus may include information that does not constitute prior art known to those of ordinary skill in the art.
Disclosure of Invention
The present disclosure is directed to a method and a system for updating a network slice, a storage medium, and an electronic device, which at least overcome, to a certain extent, the problem of low accuracy and consistency of interaction between access networks and core networks to network slice configuration information in the related art.
Additional features and advantages of the disclosure will be set forth in the detailed description which follows, or in part will be obvious from the description, or may be learned by practice of the disclosure.
According to an aspect of the present disclosure, there is provided a network slice updating method, including: the method comprises the steps that network equipment obtains a virtual tracking area identifier and first network slice information; the network equipment generates and sends an updating request message according to the virtual tracking area identification and the first network slice information; and the network element responds to the updating request message and updates the second network slice information corresponding to the virtual tracking area identification by using the first network slice information in the updating request message.
In an embodiment of the present disclosure, before the network device obtains the target virtual tracking area identifier and the first network slice information, the method further includes: the network equipment configures virtual tracking area identification based on the second network slice information; the network equipment performs associated storage on the virtual tracking area identification and the second network slice information; and the network equipment forwards the association storage result to the network element.
In one embodiment of the present disclosure, the configuring, by the network device, the virtual tracking area identifier based on the second network slice information includes: if the cells covered by the network equipment have the same network slice number and network slice ID, the network equipment acquires a second corresponding relation between the network equipment and second network slice information; and the network equipment configures virtual tracking area identification based on the network equipment level based on the second corresponding relation.
In an embodiment of the present disclosure, if a cell covered by a network device has different network slice numbers and network slice IDs, the network device obtains a third correspondence between the cell and second network slice information; and the network equipment configures the virtual tracking area identification based on the cell level based on the third corresponding relation.
In one embodiment of the present disclosure, the cells include a first cell and a second cell, wherein the network device configures the cell-level-based virtual tracking area identifier for the cell based on the third correspondence relationship, including at least one of: if the first cell and the second cell correspond to different network slice numbers, configuring different virtual tracking area identifications for the first cell and the second cell; if the first cell and the second cell correspond to the same network slice quantity and the corresponding network slice IDs are consistent, configuring the same virtual tracking area identification for the first cell and the second cell; and if the first cell and the second cell correspond to the same network slice quantity but the corresponding network slice IDs are not consistent, configuring different virtual tracking area identifications for the first cell and the second cell.
In one embodiment of the present disclosure, updating the second network slice information corresponding to the virtual tracking area identifier with the first network slice information in the update request message includes: the network element judges whether second network slice information associated with the virtual tracking area identification exists in the local database; if so, updating second network slice information by using the first network slice information; and if not, performing associated storage on the virtual tracking area identification and the first network slice information.
In one embodiment of the present disclosure, the method further comprises: the network element responds to the completion of the updating and feeds back an updating confirmation message to the network equipment; the network device receives the update confirmation message.
According to still another aspect of the present disclosure, there is provided a network slice updating system, the system including a network device and a network element, in the system, comprising: the network equipment is used for acquiring a virtual tracking area identifier and first network slice information; the network equipment is also used for generating and sending an updating request message according to the virtual tracking area identifier and the first network slice information; and the network element is used for responding to the updating request message and updating the second network slice information corresponding to the virtual tracking area identification by using the first network slice information in the updating request message.
According to yet another aspect of the present disclosure, there is provided an electronic device including: a processor; and a memory for storing executable instructions for the processor; wherein the processor is configured to perform the network slice updating method described above via execution of the executable instructions.
According to yet another aspect of the present disclosure, there is provided a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the network slice updating method described above.
According to the network slice updating method provided by the embodiment of the disclosure, in the interaction process of the core network side and the access network side, the accurate interaction of slice configuration of the core network side and the access network side is realized by configuring the virtual tracking area identifiers, and the management efficiency and accuracy of the network slices are improved.
Further, compared with a network slice updating mode based on a tracking area in the prior art, the method realizes the decoupling of the network slice and the current Tracking Area (TA), when the network carries out TA adjustment and cutting connection, the corresponding relation between the VTAI and the network slice does not need to be changed at both the base station side and the core network side, meanwhile, the TA adjustment requirement caused by network slice configuration is reduced, and the method has good result consistency and updating feasibility.
Furthermore, a network slice updating strategy of the access network and the core network is optimized through the virtual tracking area identification, so that a user can quickly adopt a proper network slice to communicate, and compared with the prior art, the network paging performance is not influenced in the network slice updating process in the scheme of the application, and the communication efficiency is improved.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure. It is to be understood that the drawings in the following description are merely exemplary of the disclosure, and that other drawings may be derived from those drawings by one of ordinary skill in the art without the exercise of inventive faculty.
Fig. 1A and 1B are schematic structural diagrams of a communication system in an embodiment of the present disclosure.
Fig. 2 shows a flowchart of a network slice updating method in an embodiment of the present disclosure.
Fig. 3 illustrates a virtual tracking area identifier and an associated storage method of a network slice before a network slice updating method in an embodiment of the present disclosure.
Fig. 4A to 4D are a flowchart and a scene diagram illustrating a method for configuring virtual tracking identifier in an embodiment of the present disclosure.
Fig. 5 is a schematic diagram illustrating a network slice updating system in an embodiment of the present disclosure. And
fig. 6 shows a block diagram of a computer device for network slice update in an embodiment of the present disclosure.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
Furthermore, the drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and a repetitive description thereof will be omitted. Some of the block diagrams shown in the figures are functional entities and do not necessarily correspond to physically or logically separate entities. These functional entities may be implemented in the form of software, or in one or more hardware modules or integrated circuits, or in different networks and/or processor devices and/or microcontroller devices.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present disclosure, "a plurality" means at least two, e.g., two, three, etc., unless explicitly specifically limited otherwise.
In view of the above technical problems in the related art, embodiments of the present disclosure provide a message display method for solving at least one or all of the above technical problems.
In order to facilitate understanding of the technical solutions of the embodiments of the present application, a brief description of the related art of the present application is first given as follows:
network Slice (NS), which may also be referred to as a slice network or simply a slice, refers to customizing different logical networks according to service requirements of services of different tenants (tenants) on a physical or virtual network infrastructure. The network slice may be a complete end-to-end network including a User Equipment (UE), an access network, a transmission network, a core network, and a service server, or a complete end-to-end network including only a core network but assisted by a UE, an access network, a transmission network, and a service server, which can provide a complete communication service and has a certain network capability, and may be a communication resource that ensures a bearer service or a service can meet a service level agreement requirement, or may be considered as a combination of a network function and a communication resource required for completing a certain communication service or a certain communication service. A network slice may be identified by single network slice selection assistance information (S-NSSAI). The S-NSSAI is composed of a slice/service type (SST) and a slice differentiation identifier (SD). Wherein SST and SD may be defined by a standard or operator self-defined; SD is optional information that supplements SST to distinguish multiple network slices of the same SST, such as may be used to characterize the affiliation of a network slice.
In addition, after the introduction of slice authentication and authorization, there is also a type of NSSAI to be allowed (which may be referred to as a pending NSSAI), which may also be referred to as an NSSAI requiring authentication and authorization or an NSSAI to be processed. The pending NSSAI may be included in the allowed NSSAI after the pending NSSAI is authorized by the authentication, that is, the UE may be allowed to access the pending NSSAI after the pending NSSAI is authorized by the authentication.
Protocol Data Unit (PDU) session (session): an association between the UE and a data network provides a PDU connect service. Within a communication system, such as a 5G network or a 5G communication system, a PDU session may contain one or more quality of service (QoS) flows. A QoS flow refers to a data transmission channel of a UE in the communication system (e.g., in a 5G network or a 5G communication system) that meets a specific QoS quality requirement, and may be identified by a QoS Flow Identity (QFI). On the UE and network side, a PDU session may contain the following attribute information: a Data Network Name (DNN), address information (such as an Internet Protocol (IP) address, a Media Access Control (MAC) address, etc.), S-NSSAI, a Service and Session Continuity (SSC) mode, etc. A PDU session is typically identified by a PDU session identity, which may be assigned by the UE.
The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.
Fig. 1A and 1B are schematic structural diagrams of a communication system in an embodiment of the present disclosure. As shown in fig. 1A, the communication system includes: UE 120, radio access network 110 (RAN/AN), and a core network. Further, the communication system may further include a data network 130 (DN), where the DN 130 may refer to a service network providing data transmission service for the user, such as an IP Multimedia Service (IMS), an internet (internet), and the like.
As shown in fig. 1B, the UE terminal 120 may be a mobile terminal such as a mobile phone, a game console, a tablet Computer, an e-book reader, smart glasses, an MP4(moving picture Experts Group Audio Layer IV) player, a smart home device, an AR (Augmented Reality) device, a VR (Virtual Reality) device, or a Personal Computer (Personal Computer, PC), such as a laptop Computer and a desktop Computer.
In addition, the access network is used to implement radio access-related functions, and may include a 3rd generation partnership project (3 GPP) access network and a non-3GPP access network. The Access network device may refer to a network device 110a providing an Access service for the UE 120, where the network device 110a may be a device for communicating with a mobile device, and the network device may be an Access Point (AP) in a WLAN, a Base Transceiver Station (BTS) in GSM or CDMA, a Base Station (NodeB, NB) in WCDMA, an evolved Node B (eNB or eNodeB) in LTE, a relay Station or an Access Point, a vehicle-mounted device, a wearable device, a network device (gbb) in an NR network, or a network device in a PLMN network evolved in the future, and the like.
In this embodiment of the present application, a network device 110 provides a service for a cell, a terminal device communicates with the network device through a transmission resource (for example, a frequency domain resource or a spectrum resource) used by the cell, a cell corresponding to the network device 110 (for example, a base station) may belong to a macro base station, or may belong to a base station corresponding to a Small cell (Small cell), where the Small cell may include: the system comprises urban cells (Metro cells), Micro cells (Micro cells), Pico cells (Pico cells), Femto cells (Femto cells) and the like, wherein the small cells have the characteristics of small coverage area and low transmission power, and are suitable for providing high-speed data transmission service.
Furthermore, the core network may include the following logical network elements: a Session Management Function (SMF) network element 140a, an access and mobility management Function (AMF) network element 140b, an authentication server Function (AUSF) network element 140c, a User Plane Function (UPF) network element 140d, an Application Function (AF) network element 140e, a Unified Data Management (UDM) network element 140f, a Policy Control Function (PCF) network element 140g, a network storage Function (network playback Function, NRF) network element 140h, a network open Function (network exposure Function, NEF) network element 140i, and a network slice selection Function (sf) network element 140 j. The functions of different core network elements are described below, and specifically shown below.
AUSF network element 140 c: the core network control plane network element is a control plane network element provided by an operator, and is used for performing authentication, for example, for performing authentication of a subscriber of the 3GPP network.
NSSF network element 140 j: the core network control plane network element is mainly used for a slicing service of 5G, for example, is responsible for selecting a target Network Slice Instance (NSI). Optionally, the NSSF network element may also be replaced with a Network Slice Specific Authentication and Authorization Function (NSSAAF) network element.
Optionally, in order to implement the functions related to authentication and authorization for the slice, a network slice-specific authentication and authorization function (nsaaf) network element may be introduced.
In the communication system shown in fig. 1A, the UE may communicate with the AMF network element 140b through an N1 interface, the r (an) device may communicate with the AMF network element 140b through an N2 interface, the r (an) device may communicate with the UPF network element 140d through an N3 interface, and the UPF network element 140d may communicate with the DN 130 through an N4 interface. In addition, the network elements in the core network may communicate through a service interface, which may include, for example: NNSSF interface, Nnef interface, Nnrf interface, Npcf interface, Nudm interface, Naf interface, Nausf interface, NAMF interface, Nnsm interface, etc. It is to be understood that, in the communication system shown in fig. 1A, the functions and interfaces of the network elements are only exemplary, and when the network elements are applied to the embodiment of the present application, not all the functions are necessary.
Further, in the present application, the communication system may further include: an Authentication Authorization and Accounting (AAA) server, which may also be referred to as AAA-S. The AAA-S may communicate with the AMF network element 140b via an intermediate network element that supports AAA-S communication with the AMF network element 140b, which may be an AUSF network element 140c, a NEF network element 140i, an NSSAAF network element, or other network elements for authentication and authorization procedures, etc. Optionally, the communication system may further include: authentication authorization and accounting proxy (AAA-P). When the AAA-S communicates with the AMF network element 140b, the AAA-S may communicate with the AAA-P first, and the AAA-P transmits the communication information of the AAA-S to the AMF network element 140b through an intermediate network element such as the AUSF network element 140c, the NEF network element 140i, or the NSSAAF network element; similarly, the AMF network element 140b sends the communication information to the AAA-P through an intermediate network element such as the AUSF network element 140c, the NEF network element 140i, or the NSSAAF network element, and the AAA-P sends the communication information to the AAA-S.
Fig. 2 shows a flowchart of a network slice updating method in an embodiment of the present disclosure. As shown in fig. 2, a method 200 provided by an embodiment of the present disclosure may include the following steps:
in step S210, the network device obtains the virtual tracking area identifier and the first network slice information.
In some embodiments of the present disclosure, the virtual tracking area identifier refers to a unique identifier allocated by taking an area covered by the network device or the cell as a minimum area unit. The selection of the network device area level or the cell area level depends on whether the corresponding network slice information is consistent. According to the scheme, the virtual tracking area identifier VTAI is set to be decoupled from the tracking area TA, so that the inconsistency of the slice information of the access network side and the core network side caused by updating of the TA is avoided.
In some embodiments of the present disclosure, the network slice information includes an identification ID of one or more network slices to derive a unique network slice from the network slice ID. In addition, the network slice information may also be other identity information representing the network slice.
In some embodiments of the present disclosure, a network device on the access network side performs a slice update on an area specified by the unique virtual tracking area VTAI according to the first network slice ID. The network device of the access network side updates the locally stored virtual tracking area identification VTAI and the associated network slice and then synchronizes the updated information to the core network.
Step S220, the network device generates and sends an update request message according to the virtual tracking area identifier and the first network slice information.
In some embodiments of the present disclosure, after the network device on the access network side updates the network slice ID corresponding to the virtual tracking identifier with the first network slice ID, the updated first network slice ID needs to be synchronized to the network element on the core network side, so as to ensure that the slice function is normal. Therefore, the network device needs to synchronize update information to a network element on the core network side, where the update information includes a virtual tracking area identifier to be updated and a new network slice ID. In some embodiments of the present disclosure, a network device (e.g., a base station) on the access network side includes the above-mentioned update information by sending an update request message to a core network side network element (e.g., an AMF).
Step S230, the network element responds to the update request message, and updates the second network slice information corresponding to the virtual tracking area identifier by using the first network slice information in the update request message.
In some embodiments of the present disclosure, the second network slice information refers to historical network slice information of the area corresponding to the virtual tracking area identification, including historical network slice IDs. In some embodiments, the core network updates the one or more second network slice IDs stored in association with the virtual tracking area identifier carried in the update request message to the one or more first network slice IDs, so as to implement synchronization and update of new network slice information on the access network side and the core network side.
The invention realizes the accurate interaction of slice configuration of the core network side and the access network side by configuring the virtual tracking area identification in the interaction process of the core network side and the access network side, and improves the management efficiency and the accuracy of the network slices.
Further, compared with a network slice updating mode based on a tracking area in the prior art, the method realizes the decoupling of the network slice and the current Tracking Area (TA), when the network carries out TA adjustment and cutting connection, the corresponding relation between the VTAI and the network slice does not need to be changed at both the base station side and the core network side, meanwhile, the TA adjustment requirement caused by network slice configuration is reduced, and the method has good result consistency and updating feasibility.
Furthermore, a network slice updating strategy of the access network and the core network is optimized through the virtual tracking area identification, so that a user can quickly adopt a proper network slice to communicate, and compared with the prior art, the network paging performance is not influenced in the network slice updating process in the scheme of the application, and the communication efficiency is improved.
In some embodiments of the present disclosure, in step S230, the updating, by the network element, the second network slice information corresponding to the virtual tracking area identifier by using the first network slice information in the update request message may further include: the network element judges whether second network slice information associated with the virtual tracking area identification exists in the local database; if so, updating second network slice information by using the first network slice information; and if not, performing associated storage on the virtual tracking area identification and the first network slice information.
In some embodiments of the present disclosure, for example, a network element determines whether a historical second network slice ID associated with a virtual tracking area identification exists in a local database, and if so, updates the second network slice ID with the first network slice ID; if not, performing associated storage based on the virtual tracking area identification and the first network slice ID information.
The invention can effectively reduce the storage redundancy in the first corresponding relation database of each network element by judging whether the database has the network slice data which is the same as the acquired identifier corresponding to the virtual tracking area and then inputting the network slice data into the database according to the judgment result.
In some embodiments of the present disclosure, if the core network includes both the AMF network element and the NSSF network element, the AMF network element in the core network needs to forward the association relationship between the virtual tracking identifier and the network slice information to the NSSF network element after performing local storage, so as to implement information synchronization.
In some embodiments of the present disclosure, the method further includes the network element feeding back an update confirmation message to the network device in response to the update being completed; the network device receives the update confirm message.
By updating the confirmation message, the execution process of updating can be effectively controlled, the network equipment is prevented from retransmitting the updating instruction, and the waste of power resources is reduced.
Fig. 3 illustrates a virtual tracking area identifier and an associated storage method of a network slice before a network slice updating method in an embodiment of the present disclosure. The method 300 includes:
in step S310, the network device configures a virtual tracking area identifier based on the second network slice information.
In some embodiments of the present disclosure, the network slice information includes one or more network slice IDs. In some embodiments, the network slice information may also be other identity information representing the network slice.
In some embodiments of the present disclosure, the network device configures virtual tracking area identifiers according to one or more second network slice IDs corresponding to covered areas, for example, configures the same virtual tracking area identifiers for areas corresponding to the same network slice ID and network slice number.
In step S320, the network device performs associative storage of the virtual tracking area identifier and the second network slice information.
In some embodiments of the present disclosure, for example, the network device establishes an association table with one or more second network slice IDs with the virtual tracking area identification as an index, and stores the association table locally.
Step S330, the network device forwards the association storage result to the network element.
In some embodiments of the present disclosure, for example, the network device synchronously forwards the association table of the virtual tracking area identifications and the one or more network slice IDs to the network element as the association result.
According to the technical scheme of storing the network slice information data corresponding to different virtual area identifications and directly calling the associated storage during updating, the updating of the network slices can be realized only by matching the virtual tracking area identification in the updating request message with the virtual tracking area identification stored on the core network side, and the updating data is immediately stored in the core network, so that the updating efficiency and accuracy are improved, and the problem that the network slices of the access network and the core network are not updated in time in the prior art is effectively solved.
Fig. 4A to 4D are a flowchart and a scene diagram illustrating a method for configuring virtual tracking identifier in an embodiment of the present disclosure. As shown in fig. 4A, the method includes:
step S410, determine whether the cells covered by the network device have the same number of network slices and network slice IDs.
In some embodiments of the present disclosure, step S410 may include determining whether the number of network slices and the network slice IDs of all cells covered by the same network device are respectively the same. In some embodiments, step S410 may further include determining whether all cells respectively covered by the plurality of network devices have the same number of network slices and network slice IDs.
If the cells covered by the network device have the same network slice number and network slice ID, executing step S420 to obtain a second corresponding relationship between the network device and second network slice information; and step S422, configuring virtual tracking area identification based on the network equipment level based on the second corresponding relation.
In some embodiments of the present disclosure, obtaining one or more second correspondences between the one or more network devices and the one or more second network slice information may further be included if the one or more cells covered by the one or more network devices have the same number of network slices and network slice IDs. One or more virtual tracking area identifications are assigned to the one or more network devices based on the second correspondence. Storing one or more second network slice information in accordance with one or more virtual tracking area identifications of one or more network devices.
For example, as shown in fig. 4B, all cells 41a, 41B, and 41c covered by network device 41 correspond to only one network slice and all correspond to network slice 1, all cells 42a, 42B, and 42c covered by network device 42 correspond to only one network slice and all correspond to network slice 2, then virtual tracking area identifications VTAI41 and VTAI42 based on network device levels are configured for network device 41 and network device 42, respectively, all cells 41a, 41B, and 41c covered by target network device 41 correspond to the same VTAI41, and all cells 42a, 42B, and 42c covered by target network device 42 correspond to the same VTAI 42. The core network element may then store the second network slice 1 per virtual tracking area identification VTAI41 of network device 41 and the second network slice 2 per virtual tracking area identification VTAI42 of network device 42 to enable virtual tracking area identification based updating of the network slice on the core network side.
According to the invention, through the corresponding relation between the cells covered by the network equipment and the network slices, on the premise that a plurality of cells have the same network slices, the VTAI identifier of the network equipment level (base station level) is adopted for configuration to solve the updating of the network slices, the identifier does not need to be respectively configured for each cell, the unnecessary VTAI resource cost is avoided being wasted, and the VTAI resource use efficiency of the wireless access network is improved.
If the cell covered by the network device has different network slice numbers and network slice IDs, executing step S430 to obtain a third corresponding relationship between the cell and the second network slice; and step S432, configuring the virtual tracking area identification based on the cell level based on the third corresponding relation.
In some embodiments of the present disclosure, if one or more cells covered by one or more network devices have different network slice numbers and network slice IDs, one or more third correspondences of the one or more cells and one or more second network slice information (e.g., network slice IDs) are obtained. One or more virtual tracking area identifications are assigned to the one or more cells based on the one or more third correspondences. Storing one or more second network slice information in accordance with one or more virtual tracking area identifications of one or more cells.
As shown in fig. 4C, the cells 43a, 43b, and 43C covered by the network device 43 have different network slice numbers and network slice IDs, the correspondence between the three areas and slice 3 and slice 4 is obtained, and then different virtual tracking area identifiers VTAI are configured for the three cells based on the correspondence.
According to the invention, through the corresponding relation between the cells covered by the network equipment and the network slices, on the premise that a plurality of cells covered by the network equipment have different network slices, the network slice updating is realized by adopting the cell-level VTAI mark for configuration, so that the network slice updating accuracy and consistency of the core network side and the access network side are ensured while the VTAI resource waste is avoided to the maximum extent.
In some embodiments of the present disclosure, the step S432 of configuring the cell with the cell-level based virtual tracking area identifier based on the third corresponding relationship may specifically include a method as shown in fig. 4D, where the method includes:
step S432a, determine whether the first cell and the second cell correspond to the same number of network slices.
In some embodiments of the present disclosure, as shown in fig. 4C specifically, taking the target network device 43 as an example: the cells 43a and 43b covered by the target network device 43 both have 1 network slice 3, while the cell 43c has 2 network slices including network slices 3 and 4.
If the first cell and the second cell correspond to different numbers of network slices, step S432d is executed to configure different virtual tracking area identifiers for the first cell and the second cell. As shown in fig. 4C, since the network slices corresponding to the cells 43a and 43C are different in number, different virtual tracking area identifications VTAI43 and VTAI44 are configured for the cells 43a and 43C.
If the first cell and the second cell correspond to the same number of network slices, step S432b is executed to determine whether the first cell and the second cell correspond to the same network slice ID.
If the first cell and the second cell also correspond to the same network slice ID, step S432c is executed to configure the same virtual tracking area identifier for the first cell and the second cell. As shown in fig. 4C, since the network slices corresponding to the cells 43a and 43b are the same in number, the same virtual tracking area identity VTAI43 is configured for the cells 43a and 43 b.
If not, step S432d is executed to configure different virtual tracking area identifiers for the first cell and the second cell. As shown in fig. 4C, taking cell 43C covered by network device 43 and cell 45a covered by network device 45 as an example, 43C and 45a both have 2 network slice numbers, but cell 43C corresponds to network slices 3 and 4, and cell 45a corresponds to network slices 4 and 5, so different VTAI44 and VTAI45 are configured for cell 43C and cell 45a
The invention compares the network slice quantity and the network slice ID to configure the cell-level VTAI, avoids the slice information interaction error when the network slice updating is executed to the cell without reducing the network resource use efficiency, and ensures the accuracy and reliability of the network slice updating.
It is to be noted that the above-mentioned figures are only schematic illustrations of the processes involved in the method according to an exemplary embodiment of the invention, and are not intended to be limiting. It will be readily understood that the processes shown in the above figures are not intended to indicate or limit the chronological order of the processes. In addition, it is also readily understood that these processes may be performed synchronously or asynchronously, e.g., in multiple modules.
Fig. 5 is a schematic diagram illustrating a network slice updating system in an embodiment of the present disclosure. As shown in fig. 5, the system 500 includes:
the network device 510 is configured to obtain a virtual tracking area identification and first network slice information. The network device 510 is further configured to generate and send an update request message according to the virtual tracking area identifier and the first network slice information. The network element 520 is configured to update, in response to the update request message, the second network slice information corresponding to the virtual tracking area identifier with the first network slice information in the update request message.
In some embodiments of the present disclosure, the network device 510 is further configured to configure a virtual tracking area identification based on the second network slice information; performing associative storage of the virtual tracking area identification and the second network slice information; and the network equipment forwards the association storage result to the network element.
In some embodiments of the present disclosure, the network device 510 is further configured to obtain a second corresponding relationship between the network device and second network slice information if the cells covered by the network device have the same network slice number and network slice ID; and configuring a virtual tracking area identifier based on the network equipment level based on the second corresponding relation.
In some embodiments of the present disclosure, the network device 510 is further configured to perform, if the cells covered by the network device have different network slice numbers and network slice IDs, the network device obtains a third corresponding relationship between the cells and the second network slice information; and configuring a virtual tracking area identifier based on the cell level based on the third corresponding relation.
In some embodiments of the present disclosure, the network device 510 is further configured to configure the same virtual tracking area identifier for the first cell and the second cell if the first cell and the second cell correspond to the same number of network slices and corresponding network slice IDs are consistent; and if the first cell and the second cell correspond to the same network slice quantity but the corresponding network slice IDs are not consistent, configuring different virtual tracking area identifications for the first cell and the second cell.
In some embodiments of the present disclosure, the network element 520 is further configured to determine whether second network slice information associated with the virtual tracking area identification exists in the local database; if so, updating second network slice information by using the first network slice information; if not, the virtual tracking area identification and the first network slice information are subjected to associated storage.
In some embodiments of the present disclosure, the network element 520 is further configured to feed back an update confirmation message to the network device in response to the update being completed; the network device 510 is also configured to receive an update confirmation message.
As will be appreciated by one skilled in the art, aspects of the present invention may be embodied as a system, method or program product. Thus, various aspects of the invention may be embodied in the form of: an entirely hardware embodiment, an entirely software embodiment (including firmware, microcode, etc.) or an embodiment combining hardware and software aspects that may all generally be referred to herein as a "circuit," module "or" system.
An electronic device 600 according to this embodiment of the invention is described below with reference to fig. 6. The electronic device 600 shown in the diagram 600 is only an example and should not bring any limitation to the function and the scope of the application of the embodiments of the present invention.
As shown in fig. 6, the electronic device 600 is embodied in the form of a general purpose computing device. The components of the electronic device 600 may include, but are not limited to: the at least one processing unit 610, the at least one memory unit 620, and a bus 630 that couples the various system components including the memory unit 620 and the processing unit 610.
Wherein the storage unit stores program code that is executable by the processing unit 610 such that the processing unit 610 performs the steps according to various exemplary embodiments of the present invention as described in the above section "exemplary methods" of the present specification. For example, the processing unit 610 may execute S210 shown in fig. 2, the network device acquires the virtual tracking area identification and the first network slice information; s220, the network equipment generates and sends an updating request message according to the virtual tracking area identification and the first network slice information; and S230, the network element responds to the update request message, and updates the second network slice information corresponding to the virtual tracking area identifier by using the first network slice information in the update request message.
The storage unit 620 may include readable media in the form of volatile storage units, such as a random access memory unit (RAM)6201 and/or a cache storage unit 6202, and may further include a read-only memory unit (ROM) 6203.
The memory unit 620 may also include a program/utility 6204 having a set (at least one) of program modules 8205, such program modules 6205 including, but not limited to: an operating system, one or more application programs, other program modules, and program data, each of which or some combination thereof may comprise an implementation of a network environment.
The electronic device 600 may also communicate with one or more external devices (e.g., keyboard, pointing device, bluetooth device, etc.), with one or more devices that enable a user to interact with the electronic device 600, and/or with any devices (e.g., router, modem, etc.) that enable the electronic device 600 to communicate with one or more other computing devices. Such communication may occur via an input/output (I/O) interface 650. Also, the electronic device 600 may communicate with one or more networks (e.g., a Local Area Network (LAN), a Wide Area Network (WAN) and/or a public network, such as the Internet) via the network adapter 660. As shown, the network adapter 660 communicates with the other modules of the electronic device 600 over the bus 630. It should be appreciated that although not shown, other hardware and/or software modules may be used in conjunction with the electronic device 600, including but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, and data backup storage systems, among others.
In an exemplary embodiment of the present disclosure, there is also provided a computer-readable storage medium having stored thereon a program product capable of implementing the above-described method of the present specification. In some possible embodiments, aspects of the invention may also be implemented in the form of a program product comprising program code means for causing a terminal device to carry out the steps according to various exemplary embodiments of the invention described in the above section "exemplary methods" of the present description, when said program product is run on the terminal device.
According to the program product for realizing the method, the portable compact disc read only memory (CD-ROM) can be adopted, the program code is included, and the program product can be operated on a terminal device, such as a personal computer. However, the program product of the present invention is not limited in this regard and, in this document, a readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
The program product may employ any combination of one or more readable media. The readable medium may be a readable signal medium or a readable storage medium. The readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples (a non-exhaustive list) of the readable storage medium include: an electrical connection having one or more wires, a portable disk, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.
A computer readable signal medium may include a propagated data signal with readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A readable signal medium may also be any readable medium that is not a readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.
Program code embodied on a readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.
Program code for carrying out operations for aspects of the present invention may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, C + + or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computing device, partly on the user's device, as a stand-alone software package, partly on the user's computing device and partly on a remote computing device, or entirely on the remote computing device or server. In the case of a remote computing device, the remote computing device may be connected to the user computing device through any of a variety of networks, including a Local Area Network (LAN) or a Wide Area Network (WAN), or may be connected to an external computing device (e.g., through an internet network using an internet service provider).
It should be noted that although in the above detailed description several modules or units of the device for action execution are mentioned, such a division is not mandatory. Indeed, the features and functionality of two or more modules or units described above may be embodied in one module or unit, according to embodiments of the present disclosure. Conversely, the features and functions of one module or unit described above may be further divided into embodiments by a plurality of modules or units.
Moreover, although the steps of the methods of the present disclosure are depicted in the drawings in a particular order, this does not require or imply that the steps must be performed in this particular order, or that all of the depicted steps must be performed, to achieve desirable results. Additionally or alternatively, certain steps may be omitted, multiple steps combined into one step execution, and/or one step broken down into multiple step executions, etc.
Through the above description of the embodiments, those skilled in the art will readily understand that the exemplary embodiments described herein may be implemented by software, or by software in combination with necessary hardware. Therefore, the technical solution according to the embodiments of the present disclosure may be embodied in the form of a software product, which may be stored in a non-volatile storage medium (which may be a CD-ROM, a usb disk, a removable hard disk, etc.) or on a network, and includes several instructions to enable a computing device (which may be a personal computer, a server, a mobile terminal, or a network device, etc.) to execute the method according to the embodiments of the present disclosure.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
Claims (10)
1. A network slice updating method, comprising:
the method comprises the steps that network equipment obtains a virtual tracking area identifier and first network slice information;
the network equipment generates and sends an updating request message according to the virtual tracking area identification and the first network slice information; and
and the network element responds to the update request message and updates the second network slice information corresponding to the virtual tracking area identification by using the first network slice information in the update request message.
2. The network slice updating method of claim 1, wherein the network device further comprises, before acquiring the target virtual tracking area identifier and the first network slice information:
the network device configuring the virtual tracking area identification based on the second network slice information;
the network equipment performs associated storage of the virtual tracking area identification and the second network slice information; and
and the network equipment forwards the association storage result to the network element.
3. The network slice updating method of claim 2, wherein the network device configuring the virtual tracking area identification based on the second network slice information comprises:
if the cells covered by the network equipment have the same network slice number and network slice ID, the network equipment acquires a second corresponding relation between the network equipment and the second network slice information;
and the network equipment configures the virtual tracking area identification based on the network equipment level based on the second corresponding relation.
4. The network slice updating method of claim 3, wherein the method further comprises:
if the cell covered by the network equipment has different network slice numbers and network slice IDs, the network equipment acquires a third corresponding relation between the cell and the second network slice information;
the network device configures the virtual tracking area identifier based on a cell level based on the third correspondence.
5. The network slice updating method of claim 4, wherein the cell comprises a first cell and a second cell, wherein the network device configuring the cell with the virtual tracking area identity based on the cell level based on the third correspondence comprises at least one of:
if the first cell and the second cell correspond to different network slice numbers, configuring different virtual tracking area identifications for the first cell and the second cell;
if the first cell and the second cell correspond to the same network slice number and the corresponding network slice IDs are consistent, configuring the same virtual tracking area identification for the first cell and the second cell;
and if the first cell and the second cell correspond to the same network slice number but the corresponding network slice IDs are not consistent, configuring different virtual tracking area identifications for the first cell and the second cell.
6. The network slice updating method of claim 1, wherein updating second network slice information corresponding to the virtual tracking area identifier with the first network slice information in the update request message comprises:
the network element judges whether second network slice information associated with the virtual tracking area identification exists in a local database; if so, updating the second network slice information by using the first network slice information; and if not, performing associated storage on the virtual tracking area identification and the first network slice information.
7. The network slice updating method of claim 1, wherein the method comprises:
the network element feeds back an update confirmation message to the network equipment in response to the completion of the update;
the network device receives the update confirm message.
8. A network slice updating system, comprising a network device and a network element, wherein the system comprises:
the network equipment is used for acquiring a virtual tracking area identifier and first network slice information;
the network equipment is also used for generating and sending an updating request message according to the virtual tracking area identification and the first network slice information;
and the network element is configured to update, in response to the update request message, second network slice information corresponding to the virtual tracking area identifier with the first network slice information in the update request message.
9. An electronic device, comprising:
a processor; and
a memory for storing executable instructions of the processor;
wherein the processor is configured to execute the network slice updating method of any one of claims 1 to 7 via execution of the executable instructions.
10. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, implements the network slice updating method according to any one of claims 1 to 7.
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