CN117376962A - Service control method, base station and storage medium - Google Patents

Service control method, base station and storage medium Download PDF

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Publication number
CN117376962A
CN117376962A CN202210760151.1A CN202210760151A CN117376962A CN 117376962 A CN117376962 A CN 117376962A CN 202210760151 A CN202210760151 A CN 202210760151A CN 117376962 A CN117376962 A CN 117376962A
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China
Prior art keywords
target
base station
core network
maintaining
service
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CN202210760151.1A
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Chinese (zh)
Inventor
孙雅文
文绍纯
张燕
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ZTE Corp
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ZTE Corp
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Priority to CN202210760151.1A priority Critical patent/CN117376962A/en
Priority to PCT/CN2023/072151 priority patent/WO2024001165A1/en
Publication of CN117376962A publication Critical patent/CN117376962A/en
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L43/00—Arrangements for monitoring or testing data switching networks
    • H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
    • H04L43/0805—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters by checking availability
    • H04L43/0817—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters by checking availability by checking functioning
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/04—Arrangements for maintaining operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/08—Testing, supervising or monitoring using real traffic

Abstract

The embodiment of the invention provides a service control method, a base station and a storage medium, and belongs to the technical field of communication. The method comprises the following steps: when detecting that an NG link between a base station serving a target area and a core network fails, identifying a target UE (user equipment) with a target service established with an application of the target area from the UE connected with the base station; and according to the networking mode of the target area, maintaining the connection between the base station and the target UE, and maintaining the target service between the target UE and the application. The embodiment of the invention can ensure the continuity of the UE service when the NG link fails.

Description

Service control method, base station and storage medium
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a service control method, a base station, and a storage medium.
Background
3GPP (3 rd Generation Partnership Project, third Generation partnership project) is currently under study for 5G (5 th Generation) systems. According to the definition of the 3GPP standard working group, an NG link is established between a gNB base station of a 5G system and a 5GC (5G core,5G core network), and when the NG link is broken, the NG side instance of user equipment UE (User Equipment) is considered to be unaligned, and the data of the UE cannot be normally transmitted any more. Thus, upon detecting an NG link outage, the gNB base station will migrate or release the UE. However, the quality of the radio link after migration may decrease, and if migration is performed by redirection, the UE may be caused to release briefly, and the data traffic is interrupted.
In view of this, how to ensure the continuity of UE service when NG link is broken becomes a technical problem to be solved in the present day.
Disclosure of Invention
The embodiment of the invention mainly aims to provide a service control method, a base station and a storage medium, and aims to solve the technical problem of ensuring the continuity of UE service when an NG link is broken.
In a first aspect, an embodiment of the present invention provides a service control method, including:
when detecting that an NG link between a base station serving a target area and a core network fails, identifying a target UE (user equipment) with a target service established with an application of the target area from the UE connected with the base station;
and according to the networking mode of the target area, maintaining the connection between the base station and the target UE, and maintaining the target service between the target UE and the application.
In a second aspect, an embodiment of the present invention further provides a base station, the base station including a processor, a memory, a computer program stored on the memory and executable by the processor, and a data bus for enabling a connection communication between the processor and the memory, wherein the computer program, when executed by the processor, implements the steps of any one of the traffic control methods as provided in the present specification.
In a third aspect, an embodiment of the present invention further provides a storage medium for computer readable storage, where the storage medium stores one or more programs, where the one or more programs are executable by one or more processors to implement the steps of any service control method as provided in the present specification.
The embodiment of the invention provides a service control method, a base station and a storage medium, wherein when detecting that an NG link between the base station serving a target area and a core network fails, the service control method identifies target UE which establishes target service with the application of the target area from user equipment UE connected with the base station; and according to the networking mode of the target area, maintaining the connection between the base station and the target UE, and maintaining the target service between the target UE and the application. In this way, when the NG link between the base station and the core network is broken, the UE in the on-line state is identified, and according to the networking mode of the target area, the target UE with the target service established can be kept in the connected state, and the target service of the target UE can be maintained, so that the continuity of the target service of the target UE is ensured.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of a scenario of an existing 5G ToC networking provided by an embodiment of the present invention;
fig. 2 is a schematic flow chart of a service control method according to an embodiment of the present invention;
fig. 3 is another flow chart of a service control method according to an embodiment of the present invention;
fig. 4a is a schematic diagram of a networking configuration of a 5G ToB park scenario related to a service control method according to an embodiment of the present invention;
fig. 4b is a schematic diagram of another networking configuration of a 5G ToB park scenario related to the service control method according to the embodiment of the present invention;
fig. 5 is a schematic diagram of a 5G ToB park scenario sink deployment backup core network related to a service control method according to an embodiment of the present invention;
fig. 6 is an exemplary diagram of an application scenario of a service control method according to an embodiment of the present invention;
fig. 7 is a schematic block diagram of a base station according to an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The flow diagrams depicted in the figures are merely illustrative and not necessarily all of the elements and operations/steps are included or performed in the order described. For example, some operations/steps may be further divided, combined, or partially combined, so that the order of actual execution may be changed according to actual situations.
It is to be understood that the terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in this specification and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
The embodiment of the invention provides a service control method, a base station and a storage medium.
Some embodiments of the invention are described in detail below with reference to the accompanying drawings. The following embodiments and features of the embodiments may be combined with each other without conflict.
Referring to fig. 1, fig. 1 is a 5G ToC (personal oriented) networking scenario commonly used at present. The core network is composed of functional modules such as AMF (Access Management Function ), UPF (User Plane Function, user plane management function), SMF (Session ManagementFunction ), UDM (Unified Data Management, unified data management function), and the like. The link between the AMF and the gNB is an N2 link, and the N2 link transmits NG-C signaling; the link between the UPF and the gNB-UP is an N3 link, and the N3 link transmits NG-U data; the link between the UPF and the SMF is an N4 link.
After the N2 or N3 link is broken, the NG side instance of the UE is considered to be unable to align, and the data of the UE is no longer normally transmitted, so the gNB in the prior art will migrate or release the UE. The quality of the radio link after migration may be degraded, and if migration is performed by redirection, the UE may be caused to release briefly, and the data traffic is interrupted.
Therefore, the embodiment of the invention provides a service control method, a base station and a storage medium, wherein the service control method can ensure the continuity of ToB service of UE (user equipment) when an NG link breaks in a 5G ToB (To Business oriented) scene.
Description of technical terms of embodiments of the invention:
AMF: a network element of the core network responsible for signaling processing is used for providing the functions of UE access and mobility management.
UPF: one network element of the core network is responsible for routing and forwarding of user plane data packets.
SMF: for providing control and management of sessions.
UDM: is responsible for storing user information, subscription QoS policies, etc.
gNB (fifth generation NodeB): the nodes of the NR user plane and control plane protocol terminals are provided to the UE and connected to the 5GC via the NG interface.
NE (Node Engine): an edge computation engine.
Referring to fig. 2, fig. 2 is a flow chart of a service control method according to an embodiment of the present invention.
As shown in fig. 2, the service control method includes steps S101 to S102.
Step S101, when detecting that NG link between base station serving target area and core network fails, identifying target UE with target service established with application of the target area from user equipment UE connected with the base station.
The service control method is applied to a 5G ToB networking scene, the involved base stations can represent gNB base stations, and the core network can represent a 5G core network.
By way of example, the business control method may be applied to a 5G ToB campus scenario, and the target area may be a 5G campus.
When a base station serving a target area detects that a failure such as a broken link occurs with an NG link between a core network, a target UE having a target service (ToB) established with an application of the target area is identified from among UEs connected to the base station in an on-line state.
Illustratively, a target UE with which a campus service is established with a campus application is identified from among UEs connected to the base station in an online state, for example, when the base station serving the campus detects a NG link outage with the core network.
In an embodiment, the base station may identify the target UE with the target service (ToB) established by the service feature information such as a slice of the bearer established by the UE connected to the base station, a 5QI (5G QoS Identifier,5G QoS identifier, which is a scalar for indexing a 5G QoS characteristic), and the like.
Step S102, according to the networking mode of the target area, the connection between the base station and the target UE is maintained, and the target business of the target UE and the application is maintained.
After the base station identifies the target UE, the connection between the target UE and the base station is maintained based on the networking mode of the target area, and the target service of the application of the target UE and the target area is maintained.
Illustratively, the connection of the base station to the target UE is maintained, e.g., according to a campus networking mode, and the target UE maintains a campus service with the campus application.
In one embodiment, as shown in FIG. 3, sub-steps S1020 through S1022 are included in step S102.
And step S1020, determining whether the base station is connected with a backup core network.
The networking mode of the target area comprises two situations that the base station deploys the backup core network and the base station does not deploy the backup core network.
When a failure such as a broken link occurs in an NG link between a base station and a core network, the base station first determines whether the base station itself is connected to a backup core network.
Sub-step S1021, if the base station is determined not to be connected with the backup core network, maintaining the connection between the base station and the target UE, and maintaining the target service between the target UE and the application based on the networking configuration of the target area;
if the base station determines that the base station is not connected with the backup core network, the connection between the target UE and the base station is maintained, and the target service of the application of the target UE and the target area is maintained based on the networking configuration of the target area.
In an embodiment, the maintaining the target UE and the target service of the application based on the networking configuration of the target area is specifically: if the UPF of the core network is deployed in the target area in a sinking way, maintaining target services of the target UE and the application through the UPF; if an edge computing engine NE is deployed in the target area, maintaining target services of the target UE and the application through the NE.
For the case that the base station does not deploy the core network, the target service of the application of the target UE and the target area can be maintained by adopting two networking configuration modes of pre-sinking the UPF of deploying the core network in the target area and deploying the NE at the edge of the base station.
For example, referring to fig. 4a and 4b, fig. 4a and 4b illustrate examples of two networking configurations for a ToB campus scenario.
Specifically, fig. 4a shows a networking configuration of UPFs for a campus dip deployment core network. Wherein the link between the UPF and the SMF is an N4 link. Sinking the UPF of the core network between the gNB base station and the park application, so that the uplink park application data service of the target UE is split at the UPF and transmitted to the park application; the park application may also send downstream data traffic to the target UE, which is passed by the UPF to the gNB base station and ultimately to the target UE.
Under the networking configuration, if the N2 or N4 link is broken, only the base station and the core network cannot align with the NG side instance of the target UE, the base station maintains the connection between the base station and the target UE, and maintains a data transmission channel between the target UE and the campus application, so that the campus application data service of the target UE is maintained, the data service of the campus application of the target UE can not be influenced, and the continuity of the campus service of the target UE is ensured.
Figure 4b shows a networking configuration of campus deployment NEs. Specifically, NE is deployed at the edge of the base station, so as to realize the base station level streaming service. The uplink park application data service of the target UE is distributed in the NE and transmitted to a local server; the local server may also send downlink data traffic to the target UE, which is delivered by the NE to the base station and ultimately to the target UE. Therefore, the method not only satisfies the reliable transmission of business data of the park without leaving the park and with low time delay, avoids the leakage of business information such as park production, communication and the like, but also can shunt the business of the park to a local data control center.
Under the networking configuration, if the N2, N3 or N4 links are broken, only the base station and the core network cannot be aligned to the NG side instance of the online UE, the base station maintains the connection between the base station and the target UE, and maintains a data transmission channel between the target UE and the campus application, so that the campus service of the target UE is maintained, the data service of the campus application of the target UE can not be influenced, and the continuity of the campus service of the target UE is ensured.
Thus, when the NG link between the base station and the core network is broken, the target UE can be subjected to target service maintenance. Because the target service only needs to be transferred between the target area application and the target UE and does not need to be transferred to the core network, when the NG link between the base station and the core network is broken, the UE in the online state can be identified according to the networking mode of the target area, so that the target UE with the target service is kept in the connected state, and the target service of the target UE is maintained. Compared with the existing processing mode, the method can ensure service continuity and improve the reliability of the whole networking system.
In an embodiment, after determining that the base station is not connected to the backup core network, the method includes: and prohibiting new UE from connecting with the base station by setting a cell in which the target UE is located to be in a forbidden BAR state.
For the situation that the base station is not connected with the backup core network, the existing processing mode can take the cell out of service after the UE is migrated or released, and the service is not provided for the UE accessed before. The base station broadcasts the BAR to the cell where the target UE is located, so that the idle state UE cannot reside, the new UE cannot be accessed, and only the target UE is ensured to be provided with service.
In an embodiment, after determining that the base station is not connected to the backup core network, the method includes: and if the NG link does not recover to be normal within a preset duration threshold, releasing the target UE.
In order to avoid the hanging of the base station side UE instance, if the NG link does not return to normal within the preset duration threshold, the target UE is released.
For example, a keep-alive timer protector may be enabled for the target UE. If the NG link returns to normal before the timer times out, stopping the timer; if the timer expires, the NG link is not restored, and the previously maintained target UE is released. The time length of the timer can be flexibly set by referring to the time length of the rush repair recovery after the NG link is broken.
In an embodiment, after determining that the base station is not connected to the backup core network, the method includes: and not transmitting the uplink signaling of the target UE.
For example, since the N2 link is disconnected and the gNB base station is not connected to the backup core network, the uplink signaling of the target UE cannot be normally processed, so that the gNB base station does not transmit the uplink signaling of the UE in this case, including uplink NAS signaling and the like.
In an embodiment, for the case where the backup core network is not deployed, when the NG link is restored, the base station performs the following processing on the target UE and the cell in which the target UE is located:
1) And the base station recovers the cell state of the target UE with the ToB service established before and allows the new UE to access.
2) The base station may select the following processing for the target UE maintaining the connected state: (1) based on the consideration of the alignment of the NG port examples, in order to avoid unknown anomalies caused by the possible misalignment of the NG port examples during the NG link failure, the base station can select to release all the target UEs which maintain the connection state before, and the target UEs can restore the service after being re-accessed; (2) based on UE traffic continuity considerations, the base station may also choose not to release the target UEs that remain connected, only updating the link state information of these target UEs.
And step 1022, if it is determined that the base station is connected to the backup core network, maintaining the connection between the base station and the target UE based on the backup core network, and maintaining the target service between the target UE and the application.
If the base station is connected with the backup core network, the base station maintains the connection with the target UE based on the backup core network, and maintains the target service of maintaining the application of the target UE and the target area.
In an embodiment, if it is determined that the base station is connected to the backup core network, maintaining the connection between the base station and the target UE based on the backup core network, and maintaining the target service between the target UE and the application specifically includes: updating the coupling information of the target UE to the backup core network; determining whether the backup core network backs up the instance information of the target UE; and if the backup core network is determined to not backup the instance information of the target UE, maintaining the connection between the base station and the target UE, and maintaining the target service between the target UE and the application.
And for the situation that the base station is connected with the core network, the base station updates the coupling information of the target UE to the backup core network. Specifically, when the UE accesses the base station, the base station needs to select an SCTP association transmission NG signaling for the UE. When the NG link is broken, the current NG coupling of the UE is interrupted, and if the base station is connected with the backup core network, the NG coupling corresponding to the backup core network can be reselected for the UE.
And then judging whether the backup core network backs up the instance information of the target UE, wherein the instance information comprises the UE identification, PDU session information established by the UE and other data. If the backup core network does not backup the instance information of the target UE, the connection between the base station and the target UE is maintained, and the target service of the target UE is maintained.
For example, referring to fig. 5, fig. 5 is an exemplary diagram of a scenario in which a backup core network is deployed for a campus dip. The processing performed by the base station when the core network does not backup the instance information of the target UE is described below with reference to the example of fig. 5.
For the situation that the backup core network does not backup the instance information of the target UE, the existing processing mode can migrate or release the UE, which possibly causes the UE to be disconnected and can not ensure the continuity of the UE service, the base station in the embodiment of the invention performs the following processing:
and maintaining the connection between the base station and the target UE, and maintaining a data transmission channel between the target UE and the park application so as to maintain the park service of the target UE and ensure the continuity of the park service of the target UE.
In an embodiment, if it is determined that the backup core network does not backup the instance information of the target UE, maintaining the connection between the base station and the target UE, and maintaining the target service between the target UE and the application, the method includes: and triggering the target UE to release when the uplink signaling of the target UE needs to be transferred, so that the target UE is reconnected with the backup core network to establish new service.
For the uplink signaling of the target UE, the backup core network cannot successfully process because the backup core network does not backup the instance information of the target UE. Considering that the UE sends uplink signaling (especially, the uplink NAS actively sent by the target UE) may be due to the need of establishing a new service, when the uplink signaling of the target UE needs to be transferred, the gNB base station may trigger the release of the target UE, so that the target UE re-accesses the backup core network to establish a new service. For uplink data sent by the target UE, the gNB base station keeps the uplink data from being shunted to the park application through the sink deployed UPF, so that the established park service is not affected.
For the backup core network, when the NG link is broken, the backup core network does not have the instance information of the backup target UE, so that the backup core network does not send downlink signaling and downlink data to the target UE maintaining the connection state. If the backup core network wishes to initiate a new service to the target UE, the backup core network may trigger a paging procedure, for example, to initiate paging to the target UE via other normally-state NG links. The target UE side receives the page in rrc_connected state, and may trigger an exception handling procedure, including disconnecting the current RRC (Radio Resource Control, the protocol related to the control plane in the radio resource control radio transmission protocol) and re-accessing, etc.
In the service control method provided by the above, when detecting that an NG link between a base station serving a target area and a core network fails, identifying a target UE with a target service established with an application of the target area from user equipment UEs connected with the base station; and according to the networking mode of the target area, maintaining the connection between the base station and the target UE, and maintaining the target service between the target UE and the application. In this way, when the NG link between the base station and the core network is broken, the UE in the on-line state is identified, and according to the networking mode of the target area, the target UE with the target service established can be kept in the connected state, and the target service of the target UE can be maintained, so that the continuity of the target service of the target UE is ensured.
For a better understanding of the above embodiments, please refer to fig. 6, an example application scenario is as follows:
and when the gNB base station detects that the NG link (N2 or N4) between the gNB base station and the 5G core network is broken, identifying a target UE with park service from the UEs in an online state, and judging whether the gNB base station is connected with the backup core network.
First) for the case where the gNB base station is not connected to the backup core network, the gNB base station performs the following processing:
(1) and maintaining the connection between the gNB base station and the target UE, and maintaining a data transmission channel between the target UE and the park application so as to maintain the park service of the target UE and ensure the continuity of the park service of the target UE.
(2) The BAR is broadcast to the cell where the target UE is located, so that the idle state UE cannot reside, the new UE cannot be accessed, and only the target UE is ensured to be provided with service.
(3) In order to avoid the hanging up of the instance of the UE at the gNB base station side, a timing protector is started for the target UE. If the NG link returns to normal before the timer times out, stopping the timer; if the timer expires, the NG link is not restored, and the previously maintained target UE is released. The time length of the timer is set by referring to the time length of the rush repair recovery after the NG link breaks.
(4) Because the N2 link is disconnected and the gNB base station is not connected to the backup core network, the uplink signaling of the target UE cannot be processed normally, so that the gNB base station does not transmit the uplink signaling of the UE, including uplink NAS signaling and the like in this case.
Thus, when the base station is not connected with the backup core network, the base station can select to keep the connection state of the UE which has established the park application data bearer at the base station and migrate the rest of the UEs. Thus, the park application service of the UE with the established park application service is not affected, and the rest of the UEs can be reselected as early as possible while the base station resources are saved.
And II) for the situation that the gNB base station is connected with the backup core network, the NG coupling information of the target UE is updated to the backup core network. Here, the backup core network includes both cases of backing up the instance information of the target UE and not backing up the instance information of the target UE. Therefore, it is first determined whether the backup core network backs up the instance information of the target UE.
1) The case of backing up the instance information of the target UE by the core network is the same as the existing processing manner, and will not be discussed.
2) For the case that the backup core network does not backup the instance information of the target UE, the existing processing manner can migrate or release the UE, possibly resulting in the UE being dropped, and the continuity of the UE service cannot be ensured, but the gcb base station in the embodiment of the present invention performs the following processing:
and maintaining the connection between the gNB base station and the target UE, and maintaining a data transmission channel between the target UE and the park application so as to maintain the park service of the target UE and ensure the continuity of the park service of the target UE.
Since the backup core network does not backup the instance information of the target UE, the backup core network cannot successfully process the uplink signaling of the target UE. Considering that the UE sends uplink signaling (especially, the uplink NAS actively sent by the target UE) may be due to the need of establishing a new service, when the uplink signaling of the target UE needs to be transferred, the gNB base station may trigger the release of the target UE, so that the target UE re-accesses the backup core network to establish a new service. For uplink data sent by the target UE, the gNB base station keeps the uplink data from being shunted to the campus application through the sink deployed UPF, so that the established ToB service is not affected.
For the backup core network, when the NG link is disconnected, the backup core network does not send downlink signaling and downlink data to the target UE maintaining the connection state because the backup core network does not backup the instance information of the target UE. If the backup core network wishes to initiate a new service to the target UE, the backup core network may trigger a paging procedure, for example, to initiate paging to the target UE via other normally-state NG links. The target UE side receives the page in rrc_connected state, and may trigger an exception handling procedure, including disconnecting the current RRC (Radio Resource Control, the protocol related to the control plane in the radio resource control radio transmission protocol) and re-accessing, etc.
Therefore, in the 5G ToB networking scene, the method and the device can ensure the continuity of the ToB service of the UE and improve the reliability of the 5G ToB networking system when the NG link is broken.
Referring to fig. 7, fig. 7 is a schematic block diagram of a base station according to an embodiment of the present invention.
As shown in fig. 7, the base station 300 includes a processor 301 and a memory 302, the processor 301 and the memory 302 being connected by a bus 303, such as an I2C (Inter-integrated Circuit) bus.
In particular, the processor 301 is configured to provide computing and control capabilities to support the operation of the entire base station. The processor 301 may be a central processing unit (Central Processing Unit, CPU), the processor 301 may also be other general purpose processors, digital signal processors (Digital Signal Processor, DSP), application specific integrated circuits (Application Specific Integrated Circuit, ASIC), field-programmable gate arrays (Field-Programmable Gate Array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or the like. Wherein the general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
Specifically, the Memory 302 may be a Flash chip, a Read-Only Memory (ROM) disk, an optical disk, a U-disk, a removable hard disk, or the like.
It will be appreciated by those skilled in the art that the structure shown in fig. 7 is merely a block diagram of a portion of the structure associated with an embodiment of the present invention and is not limiting of the base station to which an embodiment of the present invention is applied, and that a particular server may include more or fewer components than shown, or may combine certain components, or have a different arrangement of components.
The processor is configured to run a computer program stored in the memory, and implement any one of the service control methods provided by the embodiments of the present invention when the computer program is executed.
In an embodiment, the processor is configured to run a computer program stored in a memory and to implement the following steps when executing the computer program:
when detecting that an NG link between a base station serving a target area and a core network fails, identifying target UE (user equipment) with target service established with application of the target area from user equipment UE connected with the base station;
and according to the networking mode of the target area, maintaining the connection between the base station and the target UE, and maintaining the target service between the target UE and the application.
In an embodiment, when implementing the networking mode according to the target area, the processor maintains the connection between the base station and the target UE, and maintains the target service between the target UE and the application, the processor is configured to implement:
determining whether the base station is connected with a backup core network;
if the base station is not connected with the backup core network, maintaining the connection between the base station and the target UE, and maintaining the target service between the target UE and the application based on the networking configuration of the target area;
if the base station is determined to be connected with the backup core network, maintaining the connection between the base station and the target UE based on the backup core network, and maintaining the target service between the target UE and the application.
In an embodiment, when implementing the maintaining the target UE with the target service of the application based on the networking configuration of the target area, the processor is configured to implement:
if the user plane management function UPF of the core network is deployed in the target area in a sinking way, maintaining target services of the target UE and the application through the UPF;
if an edge computing engine NE is deployed in the target area, maintaining target services of the target UE and the application through the NE.
In an embodiment, when the processor determines that the base station is connected to the backup core network, based on the backup core network, the processor maintains the connection between the base station and the target UE, and maintains the target service between the target UE and the application, the processor is configured to implement:
updating the coupling information of the target UE to the backup core network;
determining whether the backup core network backs up the instance information of the target UE;
and if the backup core network is determined to not backup the instance information of the target UE, maintaining the connection between the base station and the target UE, and maintaining the target service between the target UE and the application.
In an embodiment, after implementing the determining that the base station is not connected to the backup core network, the processor is configured to implement:
and prohibiting new UE from connecting with the base station by setting a cell in which the target UE is located to be in a forbidden BAR state.
In an embodiment, after implementing the determining that the base station is not connected to the backup core network, the processor is configured to implement:
and if the NG link does not recover to be normal within a preset duration threshold, releasing the target UE.
In an embodiment, the processor is configured to, after implementing the determining that the base station is not connected to the backup core network, implement:
and not transmitting the uplink signaling of the target UE.
In an embodiment, the processor is configured to, if it is determined that the backup core network does not backup the instance information of the target UE, maintain the connection between the base station and the target UE, and after maintaining the target service between the target UE and the application, implement:
and triggering the target UE to release when the uplink signaling of the target UE needs to be transferred, so that the target UE is reconnected with the backup core network to establish new service.
It should be noted that, for convenience and brevity of description, a specific operation process of the base station described above may refer to a corresponding process in the foregoing service control method embodiment, which is not described herein again.
The embodiment of the invention also provides a storage medium for computer readable storage, where one or more programs are stored, and the one or more programs can be executed by one or more processors, so as to implement the steps of any service control method provided in the embodiment of the invention.
The storage medium may be an internal storage unit of the base station according to the foregoing embodiment, for example, a hard disk or a memory of the base station. The storage medium may also be an external storage device of the base station, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card) or the like, which are provided on the base station.
Those of ordinary skill in the art will appreciate that all or some of the steps, systems, functional modules/units in the apparatus, and methods disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof. In a hardware embodiment, the division between the functional modules/units mentioned in the above description does not necessarily correspond to the division of physical components; for example, one physical component may have multiple functions, or one function or step may be performed cooperatively by several physical components. Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). The term computer storage media includes both volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data, as known to those skilled in the art. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can be accessed by a computer. Furthermore, as is well known to those of ordinary skill in the art, communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media.
It should be understood that the term "and/or" as used in the present specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations. It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The foregoing embodiment numbers of the present invention are merely for the purpose of description, and do not represent the advantages or disadvantages of the embodiments. While the invention has been described with reference to certain preferred embodiments, it will be understood by those skilled in the art that various changes and substitutions may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. Therefore, the protection scope of the invention is subject to the protection scope of the claims.

Claims (10)

1. A service control method, comprising:
when detecting that an NG link between a base station serving a target area and a core network fails, identifying target UE (user equipment) with target service established with application of the target area from user equipment UE connected with the base station;
and according to the networking mode of the target area, maintaining the connection between the base station and the target UE, and maintaining the target service between the target UE and the application.
2. The traffic control method according to claim 1, wherein the maintaining the connection between the base station and the target UE according to the networking mode of the target area, and maintaining the target traffic between the target UE and the application, comprises:
determining whether the base station is connected with a backup core network;
if the base station is not connected with the backup core network, maintaining the connection between the base station and the target UE, and maintaining the target service between the target UE and the application based on the networking configuration of the target area;
if the base station is determined to be connected with the backup core network, maintaining the connection between the base station and the target UE based on the backup core network, and maintaining the target service between the target UE and the application.
3. The traffic control method according to claim 2, wherein the maintaining the target traffic of the target UE and the application based on the networking configuration of the target area comprises:
if the user plane management function UPF of the core network is deployed in the target area in a sinking way, maintaining target services of the target UE and the application through the UPF;
if an edge computing engine NE is deployed in the target area, maintaining target services of the target UE and the application through the NE.
4. The traffic control method according to claim 2, wherein if it is determined that the base station is connected to the backup core network, maintaining the connection between the base station and the target UE based on the backup core network, and maintaining the target traffic between the target UE and the application, includes:
updating the coupling information of the target UE to the backup core network;
determining whether the backup core network backs up the instance information of the target UE;
and if the backup core network is determined to not backup the instance information of the target UE, maintaining the connection between the base station and the target UE, and maintaining the target service between the target UE and the application.
5. The traffic control method according to claim 2, wherein after determining that the base station is not connected to the backup core network, the method comprises:
and prohibiting new UE from connecting with the base station by setting a cell in which the target UE is located to be in a forbidden BAR state.
6. The traffic control method according to claim 2, wherein after determining that the base station is not connected to the backup core network, the method comprises:
and if the NG link does not recover to be normal within a preset duration threshold, releasing the target UE.
7. The traffic control method according to claim 2, wherein after determining that the base station is not connected to the backup core network, the method comprises:
and not transmitting the uplink signaling of the target UE.
8. The traffic control method according to claim 4, wherein if it is determined that the backup core network does not backup the instance information of the target UE, maintaining the connection between the base station and the target UE, and maintaining the target traffic between the target UE and the application, comprises:
and triggering the target UE to release when the uplink signaling of the target UE needs to be transferred, so that the target UE is reconnected with the backup core network to establish new service.
9. A base station, characterized in that the base station comprises a processor, a memory, a computer program stored on the memory and executable by the processor, and a data bus for enabling a connection communication between the processor and the memory, wherein the computer program, when being executed by the processor, implements the steps of the traffic control method according to any of claims 1 to 8.
10. A storage medium for computer-readable storage, wherein the storage medium stores one or more programs executable by one or more processors to implement the steps of the traffic control method of any of claims 1 to 8.
CN202210760151.1A 2022-06-30 2022-06-30 Service control method, base station and storage medium Pending CN117376962A (en)

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