CN113965907A - Service configuration method for rail transit application scene, core network equipment and storage medium - Google Patents

Service configuration method for rail transit application scene, core network equipment and storage medium Download PDF

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Publication number
CN113965907A
CN113965907A CN202111361181.7A CN202111361181A CN113965907A CN 113965907 A CN113965907 A CN 113965907A CN 202111361181 A CN202111361181 A CN 202111361181A CN 113965907 A CN113965907 A CN 113965907A
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service
terminal
target
qos parameter
parameter
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CN113965907B (en
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韩海涛
张春雨
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Traffic Control Technology TCT Co Ltd
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Traffic Control Technology TCT Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/0231—Traffic management, e.g. flow control or congestion control based on communication conditions
    • H04W28/0236—Traffic management, e.g. flow control or congestion control based on communication conditions radio quality, e.g. interference, losses or delay
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/0268—Traffic management, e.g. flow control or congestion control using specific QoS parameters for wireless networks, e.g. QoS class identifier [QCI] or guaranteed bit rate [GBR]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/50—Service provisioning or reconfiguring

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  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The embodiment of the application provides a service configuration method, core network equipment and a storage medium. The method comprises the following steps: when detecting that the terminal vehicle-mounted terminal meets the service configuration condition, determining a target service parameter according to a service configuration strategy; the business configuration policy includes at least one of the following dimensions: a service scene, service demand time and a service demand area; sending a change request to a base station, wherein the change request carries target service parameters; and sending the change request to the terminal vehicle-mounted terminal through the base station so as to configure corresponding services for the terminal vehicle-mounted terminal according to the target service parameters. The service configuration method for the rail transit application scene can realize the multi-dimensional customized service strategy of vehicle-ground communication, can break through the limitation of single QoS strategy of the whole traditional network, and can realize flexible network deployment application based on service requirements.

Description

Service configuration method for rail transit application scene, core network equipment and storage medium
Technical Field
The present application relates to the field of rail transit communication technologies, and in particular, to a service configuration method, a core network device, and a storage medium.
Background
With the demand of intelligent development of the next generation of urban rail system, the functions to be realized by the urban rail system are more and more complex, and thus, a great deal of communication needs exist among the constituent units of the urban rail system (such as between vehicles, between vehicles and trackside equipment or between trackside equipment). However, the existing service configuration strategy is single, and cannot meet diversified communication requirements.
Disclosure of Invention
In order to solve one of the technical defects, embodiments of the present application provide a service configuration method, a core network device, and a storage medium.
According to a first aspect of the embodiments of the present application, a service configuration method is provided, which is applied to a core network device, and the method includes:
when detecting that the terminal vehicle-mounted terminal meets the service configuration condition, determining a target service parameter according to a service configuration strategy; the business configuration policy includes at least one of the following dimensions: a service scene, service demand time and a service demand area;
sending a change request to the base station, wherein the change request carries target service parameters; and sending the change request to the terminal through the base station so as to configure corresponding services for the terminal according to the target service parameters.
Optionally, the service demand area is one or more tracking areas, and the tracking areas are areas obtained by dividing a service range corresponding to a track where a vehicle operates in a serving cell according to service quality.
Optionally, when an update request sent by the base station is received and the update request is used to indicate that the tracking area accessed by the terminal is updated, the terminal is determined to meet the service configuration condition.
Optionally, the service configuration policy at least includes a corresponding relationship between a tracking area and a quality of service QoS parameter;
the determining the target service parameter according to the service configuration policy includes:
and determining the QoS parameter corresponding to the current access tracking area of the terminal as a target service parameter according to the current access tracking area of the terminal and the corresponding relation between the tracking area and the QoS parameter.
Optionally, the core network device at least includes: the system comprises an authentication management function AMF module and a session management function SMF module;
the determining, according to the current access tracking area of the terminal and the corresponding relationship between the tracking area and the QoS parameter, the QoS parameter corresponding to the current access tracking area of the terminal as the target service parameter includes:
the AMF module sends the number information of the current access tracking area of the terminal to the SMF module after receiving an updating request sent by a base station;
the SMF module determines a target QoS parameter corresponding to the number information as a target service parameter according to the number information and the corresponding relation between the tracking area and the QoS parameter, and finishes the modification process of the target QoS parameter;
and the SMF module sends a change request to the base station through the AMF module, wherein the change request carries a target QoS parameter.
Optionally, when it is detected that the current running time of the terminal spans a time period, the terminal is determined to meet a service configuration condition.
Optionally, the service configuration policy at least includes a correspondence between the terminal access time period and a QoS parameter;
determining the target service parameter according to the service configuration policy comprises:
and the core network equipment determines the QoS parameter corresponding to the current running time of the terminal as a target service parameter according to the current running time of the terminal and the corresponding relation between the terminal access time period and the QoS parameter.
Optionally, the core network device at least includes: an AMF module and an SMF module;
the core network equipment determines the QoS parameter corresponding to the current operation time of the terminal as the target service parameter according to the current operation time of the terminal and the corresponding relation between the terminal access time period and the QoS parameter, and the determination comprises the following steps:
the AMF module detects whether the current operation time of the terminal spans a time period;
when detecting that the current running time of the terminal spans a time period, the AMF module sends the number information of the current access tracking area of the terminal to the SMF module;
the SMF module determines a target QoS parameter corresponding to the number information as a target service parameter according to the number information and the corresponding relation between the terminal access time period and the QoS parameter, and finishes the modification process of the target QoS parameter;
and the SMF module sends a change request to the base station through the AMF module, wherein the change request carries a target QoS parameter.
According to a second aspect of the embodiments of the present application, there is provided a core network device, including:
the SMF module is used for determining a target service parameter according to a service configuration strategy when detecting that the terminal vehicle-mounted terminal meets a service configuration condition; the business configuration policy includes at least one of the following dimensions: a service scene, service demand time and a service demand area;
the SMF module is also used for sending a change request to the base station, wherein the change request carries target service parameters; and sending the change request to the terminal through the base station so as to configure corresponding services for the terminal according to the target service parameters.
According to a third aspect of the embodiments of the present application, there is provided a core network device, including:
a memory;
a processor; and
a computer program;
wherein the computer program is stored in the memory and configured to be executed by the processor to implement the method as described above.
According to a fourth aspect of embodiments of the present application, there is provided a computer-readable storage medium having a computer program stored thereon; the computer program is executed by a processor to implement the method as described above.
By adopting the service configuration method provided by the embodiment of the application, the multi-dimensional customized service strategy of the train-ground communication can be realized, the limitation of the single QoS strategy of the whole traditional network can be broken through, and the flexible network deployment application can be realized based on the service requirement.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
fig. 1 is a schematic flowchart of a service configuration method according to an embodiment of the present application;
fig. 2 is a schematic flowchart of a service configuration method under a service demand area dimension according to an embodiment of the present application;
fig. 3 is a schematic flowchart of a service configuration method in a service demand time dimension according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of a core network device according to an embodiment of the present application;
fig. 5 is a schematic architecture diagram of a core network device according to an embodiment of the present application.
Detailed Description
In order to make the technical solutions and advantages of the embodiments of the present application more apparent, the following further detailed description of the exemplary embodiments of the present application with reference to the accompanying drawings makes it clear that the described embodiments are only a part of the embodiments of the present application, and are not exhaustive of all embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
In the process of implementing the application, the inventor finds that the communication requirements of the train in different areas and different time periods are different, the requirements of the different areas take vehicle-mounted video applications (such as PIS and CCTV) as an example, when the train runs on a line, the bandwidth of a downlink video stream needs to be preferentially ensured, the flow of the vehicle-mounted PIS video stream is ensured, and the watching experience of passengers is ensured. When the train is in a train section or returns to a warehouse, the downlink PIS bandwidth does not need to be considered, but the uplink returned bandwidth of the vehicle-mounted CCTV needs to be preferentially ensured, so that the vehicle-mounted CCTV video can be returned to the ground monitoring center in real time through 5G within limited time, and manual operation is avoided.
The special requirements for communication in different time periods are exemplified, when a special temporary special operation time period or a major holiday guarantee is carried out, the communication requirements are inconsistent with daily operation requirements, if a major security event is involved, real-time video return of the vehicle-mounted CCTV is needed, and at the moment, the uplink bandwidth of the vehicle-mounted CCTV needs to be guaranteed preferentially. Customized service strategies based on different regions and different time can be combined, so that the service strategies meeting a plurality of special scenes can be flexibly customized, and special requirements of subway operation can be met.
In addition, in the future, smart city rail systems have more and more functions and are more and more complex, and service requirements of different scenes, different regions and different time periods are different, for example, the requirements of a line and a garage on bandwidth and time delay of vehicle-ground communication are different, and the requirements of daytime operation time and night non-operation time on bandwidth and time delay are different. There may also be different needs for internet of things applications in the future.
In view of the above problems, embodiments of the present application provide a service configuration system and a service configuration method for a rail transit application scenario, and a customized service policy that can implement multi-dimensional vehicle-ground communication is applied to the rail transit application scenario through the service configuration system and the service configuration method, so that the limitation of a single QoS policy of a traditional network can be broken, and flexible network deployment and application can be implemented based on service requirements.
Referring to fig. 1 to fig. 3, an embodiment of the present application provides a service configuration system, where the service configuration system includes: the base station is respectively in communication connection with the core network equipment and the terminal; the core network device is configured to determine a target service parameter according to a service configuration policy when it is detected that the terminal vehicle-mounted terminal satisfies a service configuration condition, where the target service parameter may be understood as a parameter related to a service to be adjusted by a control terminal, for example: the target Service parameter may be a Quality of Service (QoS) parameter; the business configuration policy includes at least one of the following dimensions: a service scene, service demand time and a service demand area; the core network equipment is also used for sending a change request to the base station, wherein the change request carries target service parameters; and the base station is used for sending the change request to the terminal so as to configure corresponding services for the terminal according to the target service parameters. Therefore, by the scheme, different service configuration strategies can be configured based on multiple dimensions such as service scenes, service demand areas, service demand time and the like, so as to meet different service demands.
Further, the core network device at least includes: an Authentication Management Function (AMF) module and a Session Management Function (SMF) module; the AMF module is respectively in communication connection with the base station and the SMF module, and the AMF module is in communication connection with the base station. The service configuration strategy comprises different dimensions, and the AMF module and the SMF module have different functions.
And when the service configuration strategy comprises the service demand area dimension and the target service parameter is the QoS parameter, determining the QoS parameter corresponding to the tracking area currently accessed by the terminal as the target service parameter according to the tracking area currently accessed by the terminal and the corresponding relation between the tracking area and the QoS parameter. The service configuration strategy at least comprises a corresponding relation between a tracking area and a QoS parameter; the service demand area is one or more tracking areas, and the tracking areas are areas obtained by dividing service cells according to service quality. And when an updating request sent by the base station is received and the updating request is used for indicating that the tracking area accessed by the terminal is updated, the terminal is determined to meet the service configuration condition.
Referring to fig. 2, further, the AMF module is configured to send, after receiving an update request sent by a base station, number information of a current access tracking area of the terminal to the SMF module; and the SMF module is used for determining the target QoS parameter corresponding to the number information as a target service parameter according to the number information and the corresponding relation between the tracking area and the QoS parameter, and finishing the modification process of the target QoS parameter. The SMF module is also used for sending a change request to the base station, wherein the change request carries a target QoS parameter.
And when the service configuration strategy comprises service requirement time and the target service parameter is a QoS parameter, the core network equipment is used for determining the QoS parameter corresponding to the current operation time of the terminal as the target service parameter according to the current operation time of the terminal and the corresponding relation between the terminal access time period and the QoS parameter. The service configuration policy at least comprises the corresponding relation between the terminal access time period and the QoS parameter. And when the current operation time of the terminal is detected to span a time period, the terminal is determined to meet the service configuration condition.
Referring to fig. 3, further, the AMF module is configured to detect whether a current operation time of the terminal spans a time period; the AMF module is used for sending the number information of the current access tracking area of the terminal to the SMF module when the time span of the current operation time of the terminal is detected; the SMF module is used for determining a target QoS parameter corresponding to the number information as a target service parameter according to the number information and the corresponding relation between the terminal access time period and the QoS parameter, and completing the modification process of the target QoS parameter; the SMF module is further configured to send a change request to the base station, where the change request carries a target QoS parameter.
And when the service configuration strategy comprises service scene dimensionality and the target service parameter is the QoS parameter, the core network equipment is used for determining the QoS parameter corresponding to the scene where the terminal is currently located as the target service parameter according to the scene where the terminal is currently located and the corresponding relation between the scene where the terminal is located and the QoS parameter. At this time, the service configuration policy at least includes a correspondence between a scenario in which the terminal is located and the QoS parameter. And when detecting that the current scene of the terminal is changed, determining that the terminal meets the service configuration condition.
Further, the AMF module is used for detecting whether the scene where the terminal detects changes currently; the AMF module is used for controlling the SMF module to determine a target QoS parameter corresponding to the current scene as a target service parameter according to the current scene and the corresponding relation between the current scene and the QoS parameter when detecting that the current scene of the terminal is changed, and finishing the modification process of the target QoS parameter; the SMF module is further configured to send a change request to the base station, where the change request carries a target QoS parameter.
It should be noted that, the above scenes are scenes that are used independently for each dimension, and besides, a plurality of scenes may be used in combination, that is, control of multiple dimensions may be realized. The service configuration system can realize a customized service strategy scheme of 5G vehicle-ground communication, and has the following advantages besides breaking through the limitation of single QoS of the whole network:
1) the method supports the combination setting of multi-dimensional service configuration strategies, autonomously controls service logic, and can realize the permutation and combination application of a plurality of strategies;
2) and dynamic setting and modification are supported, the strategy setting is more flexible, and dynamic strategy application can be met.
It can be understood that the configuration system can realize a multi-dimensional customized service strategy for vehicle-ground communication, can break through the limitation of a single QoS strategy of the whole traditional network, and can realize flexible network deployment application based on service requirements. The service configuration system can further realize the design and application of 5G vehicle-ground communication customized service strategies facing a rail transit application scene, and is beneficial to promoting the application of a 5G network in smart city rails. For example: the service configuration strategy can be determined based on dimensions such as region, time and the like, technical support is provided for service requirements of various scenes of the smart city rail, and diversified requirements of a future smart city rail system on communication can be met.
Referring to fig. 1, based on the service configuration system described above, an embodiment of the present application provides a service configuration method, where an execution subject of the service configuration method is a core network device, and the service configuration method includes the following steps 101 to 102.
Step 101: and when detecting that the terminal meets the service configuration condition, determining a target service parameter according to the service configuration strategy.
In step 101, the service configuration policy includes at least one of the following dimensions: a service scenario, a service demand time, and a service demand area. The service scenario refers to a scenario in which the terminal sends the configuration request, for example: line and garage, etc. The service demand time refers to a time period in which the terminal sends the configuration request, for example: the time periods can be divided according to the passenger flow volume, and the service demand time can be confirmed according to the time period when the terminal sends the configuration request. The service demand area refers to a serving cell in which the terminal sends a configuration request. For example: the serving cell may be divided into at least one tracking area according to the quality of service and the traffic demand area may be confirmed according to the tracking area where the terminal transmits the configuration request. I.e. the service requirement area may be one or more tracking areas. The target service parameter is a parameter required by the terminal configuration service, for example: a QoS parameter.
In order to solve the problem of single traditional network QoS strategy, the embodiment of the application designs a customized service strategy scheme based on different regions and a customized service strategy scheme based on different time, wherein different schemes can be independently applied or flexibly combined and applied, and more customized strategy requirements can be supported. The process of determining the target service parameter has several possible embodiments as follows:
the first method is as follows: the service configuration policy at least comprises: business demand area dimensions.
In the first mode, different tracking areas are planned by the serving cell according to different areas required by the QoS policy, and the tracking area is an area obtained by combining at least one serving cell. And when an updating request sent by a base station is received and the updating request is used for indicating that the tracking area accessed by the terminal is updated, the terminal is determined to meet the service configuration condition. The service configuration strategy at least comprises the corresponding relation between the tracking area and the QoS parameter. At this time, the QoS parameter corresponding to the current access tracking area of the terminal may be determined as the target service parameter according to the current access tracking area of the terminal and the corresponding relationship between the tracking area and the QoS parameter. Thus, different QoS parameters can be configured for different tracking areas to meet different service requirements of different tracking areas.
Taking a 5G core network as an example, different QoS policy requirement areas are planned into different Tracking Areas (TACs), which may be set as different cells or merged areas of several cells, and when a terminal accesses in a TAC1 area, one set of QoS parameters is allocated, and when a terminal accesses in a TAC2 area, another set of QoS parameters is allocated. When the terminal moves from a TAC1 area to a TAC2 area and initiates mobility registration updating, a base station uploads a tracking area updating request to a core network, a core network AMF notifies tracking area number information to an SMF (advanced multimedia messaging service) and initiates a QoS (quality of service) parameter modification process to complete parameter modification, the SMF sends the parameter modification process to the terminal through the base station, and the terminal receives a QoS strategy parameter change notification to realize different QoS strategies in different areas.
It is understood that the division of the Tracking Areas (TACs) may be determined based on the base station, and the TACs of one QoS policy may be cells covered by one base station or may be an area set covered by several base stations. For example, in combination with an application scenario of rail transit, the area of a station position is small, and one base station can cover the station position, so that the station area is divided into one TAC; the vehicle section or main line area is a long and narrow area and needs to be covered by several base stations or multiple sections of leaky cables, and the TAC of the vehicle section or main line area is the coverage area set of several base stations. In practical application, the tracking area can be flexibly set according to the QoS service requirement.
Referring to fig. 2, when the core network device includes an AMF module and an SMF module, the AMF module sends the number information of the current access tracking area of the terminal to the SMF module after receiving an update request sent by the base station; the SMF module determines a target QoS parameter corresponding to the number information as a target service parameter according to the number information and the corresponding relation between the tracking area and the QoS parameter, and finishes the modification process of the target QoS parameter; the SMF module sends a change request to the AMF module, wherein the change request carries a target QoS parameter, and the AMF module forwards the change request to the base station. The base station forwards the change request to the terminal, and the terminal changes the service parameters into target service parameters according to the change request. The target service parameters are determined and obtained according to the service configuration strategies of multiple dimensions, and the single QoS limitation of the whole network is broken through. The configuration method supports the combination setting of multi-dimensional service configuration strategies, autonomously controls service logic and can realize the permutation and combination application of a plurality of strategies; the service configuration method also supports dynamic setting and modification, the strategy setting is more flexible, and the dynamic strategy application can be met.
Customized development and actual test are carried out on the service configuration method, and different Tracking Areas (TACs) are configured: cell 0, cell 1. The terminal initiates access in cell 0 and the QoS parameter 5QI is 3. Moving to the area of the cell 1 triggers the TAU QOS parameter modification process, and the QoS parameter 5QI becomes 4. Therefore, different tracking areas can be set with different QoS parameters through the service configuration method, and diversified communication requirements can be better met.
The second method comprises the following steps: the service configuration policy at least comprises: and the service demand time dimension can divide the running time into a plurality of time periods according to parameters such as service demand or passenger flow in the running process of the vehicle. And when the current operation time of the terminal is detected to span a time period, the terminal is determined to meet the service configuration condition. The service configuration policy at least comprises the corresponding relation between the terminal access time period and the QoS parameter. At this time, when determining the target service parameter, the core network device determines the QoS parameter corresponding to the current operation time of the terminal as the target service parameter according to the current operation time of the terminal and the corresponding relationship between the terminal access time period and the QoS parameter.
For example: different time periods are divided in a core network, the time granularity can be in minutes, one set of QoS parameters is allocated when a terminal is accessed in the range of the time period 1, and the other set of QoS parameters is allocated when the terminal is accessed in the time period 2. When the core network detects that the time of the same terminal operation spans the time period, the SMF actively initiates a QoS modification process to complete parameter modification, and the QoS modification process is issued to the terminal through the base station to realize different QoS strategies in different time periods, wherein the specific signaling process is not identical to the strategy scheme based on different areas, and the trigger mechanism of the customized service strategy based on the time period is from a timer of the core network instead of the TAC of the terminal.
Further, the partitioning of the time period may be determined based on traffic demand. The recommended time granularity is minutes, taking into account the core network bearer capability. The time period division can be based on normal operation time, warehouse returning time, special festival time, major event guarantee time and the like, the time period of each special requirement is flexibly set, the minimum set granularity of each time period is minutes, the time period length can be set according to needs, and the requirements of customized service strategies are met.
Referring to fig. 3, when the core network device includes an AMF module and an SMF module, the AMF module detects whether the current operation time of the terminal spans a time period; when detecting that the current running time of the terminal spans a time period, the AMF module sends the number information of the current access tracking area of the terminal to the SMF module; the SMF module determines a target QoS parameter corresponding to the number information as a target service parameter according to the number information and the corresponding relation between the terminal access time period and the QoS parameter, and finishes the modification process of the target QoS parameter; and the SMF module sends a change request to the base station through the AMF module, wherein the change request carries a target QoS parameter. In this way, different target service parameters can be configured for different time periods to meet the communication requirements of different time periods.
The service configuration method is subjected to customized development and actual test, the time period change time set during the test is 16 points 55, and the core network automatically generates PDU Session modification after the time. The terminal QoS parameter 5QI is 3 before 16 points 55. After 16 points 55, the TAU QOS parameter modification procedure is triggered and the QOS parameter 5QI becomes 4. Therefore, it can be seen that, by the above service configuration method, different QoS parameters can be configured at different time periods, for example: different QoS parameters can be configured according to passenger flow and the like, and diversified requirements can be better met.
The third method comprises the following steps: the service configuration policy at least comprises: a service scenario dimension. The route on which the vehicle is to be operated can be divided into at least one scenario according to the network conditions, for example: dividing the scenes to be operated into: lines, garages, etc. And when the current position of the terminal is detected to cross the scene, the terminal is determined to meet the service configuration condition. The service configuration strategy at least comprises the corresponding relation between the scene where the terminal is located and the QoS parameter. At this time, when determining the target service parameter, the core network device determines the QoS parameter corresponding to the current operation time of the terminal as the target service parameter according to the current operation time of the terminal and the corresponding relationship between the terminal access time period and the QoS parameter.
It should be noted that the three manners may be used independently, or the three manners may be used in combination according to requirements, and the embodiment of the present application is not limited to the three manners described above, and other dimensions and corresponding service configuration policies may be added according to other requirements.
In the embodiment of the application, the service configuration method can realize the multi-dimensional customized service strategies such as service demand areas, service demand time and the like, the multi-dimensional configuration schemes can be independently used or flexibly combined and applied, and more diversified customized strategy requirements can be supported. In addition, the service configuration strategy can meet the diversified requirements of the future smart city rail, and lays a foundation for the future complex large-scale commercial application. The customized service strategy scheme does not need to modify a 3GPP protocol, has low implementation cost and is beneficial to commercial popularization.
Step 102: sending a change request to the base station, wherein the change request carries target service parameters; and the base station is used for sending the change request to the terminal so as to configure corresponding services for the terminal according to the target service parameters.
In step 102, when the core network device includes the AMF module and the SMF module, the SMF module sends a change request to the AMF module, and the AMF module sends the change request to the base station, where the change request is sent to the terminal through the base station, so as to configure a corresponding service for the terminal according to the target service parameter.
In the embodiment of the application, the service configuration method can realize a customized service strategy scheme for 5G vehicle-ground communication, and has the following advantages besides breaking through the single QoS limitation of the whole network:
1) the method supports the combination setting of multi-dimensional service configuration strategies, autonomously controls service logic, and can realize the permutation and combination application of a plurality of strategies;
2) and dynamic setting and modification are supported, the strategy setting is more flexible, and dynamic strategy application can be met.
It can be understood that the configuration method can realize a multi-dimensional customized service strategy for vehicle-ground communication, can break through the limitation of a single QoS strategy of the whole traditional network, and can realize flexible network deployment application based on service requirements. Furthermore, the design and application of 5G vehicle-ground communication customized business strategies facing a rail transit application scene can be realized, and the application of a 5G network in smart city and rail is facilitated to be promoted. For example: the service configuration strategy can be determined based on dimensions such as region, time and the like, technical support is provided for service requirements of various scenes of the smart city rail, and diversified requirements of a future smart city rail system on communication can be met.
Referring to fig. 2, an execution subject of the service configuration method is the service configuration system described above, and the service configuration method is described in the embodiment of the present application, where the process of determining the target service parameter through the service demand area dimension is described, and the service configuration method includes the following steps 201 to 205.
Step 201: when the tracking area accessed by the terminal is updated, the terminal sends an updating request to the base station, wherein the updating request is used for indicating the updating of the tracking area accessed by the terminal.
Before step 201, the serving cell plans different tracking areas according to different QoS policy requirement areas, where the tracking area is an area obtained by combining at least one serving cell.
Taking a 5G core network as an example, different QoS policy requirement areas are planned into different Tracking Areas (TACs), which may be set as different cells or merged areas of several cells, and when a terminal accesses in a TAC1 area, one set of QoS parameters is allocated, and when a terminal accesses in a TAC2 area, another set of QoS parameters is allocated. When the terminal moves from a TAC1 area to a TAC2 area and initiates mobility registration updating, a base station uploads a tracking area updating request to a core network, an AMF (advanced mobile switching function) module of the core network informs an SMF (network management function) module of tracking area number information, the SMF module initiates a QoS (quality of service) parameter modification process to complete parameter modification and sends the parameter modification to the terminal through the base station, and the terminal receives a QoS strategy parameter change notice to realize different QoS strategies in different areas.
It is understood that the division of the Tracking Areas (TACs) may be determined based on the base station, and the TACs of one QoS policy may be cells covered by one base station or may be an area set covered by several base stations. For example, in combination with an application scenario of rail transit, the area of a station position is small, and one base station can cover the station position, so that the station area is divided into one TAC; the vehicle section or main line area is a long and narrow area and needs to be covered by several base stations or multiple sections of leaky cables, and the TAC of the vehicle section or main line area is the coverage area set of several base stations. In practical application, the tracking area can be flexibly set according to the QoS service requirement.
Step 202: a base station receives an update request sent by a terminal and forwards the update request to an AMF module of core network equipment;
step 203: after receiving the update request, the SMF module of the core network device determines a target service parameter to be changed by the terminal, and initiates a QoS policy parameter change procedure to the AMF module.
Step 204: and the AMF module sends a change request to the base station, wherein the change request carries the target service parameters.
Step 205: and the base station forwards the change request to the terminal, and the terminal updates the target service parameters based on the change request.
In the embodiment of the application, the service configuration method can realize that different tracking areas set different QoS strategy parameters to meet different communication requirements. The configuration method can realize the design and application of the 5G vehicle-ground communication customized business strategy in a rail transit application scene, and is beneficial to promoting the application of a 5G network in smart city and rail. The customized service strategy scheme does not need to modify a 3GPP protocol, has low implementation cost and is beneficial to commercial popularization.
Referring to fig. 3, an embodiment of the present application provides a service configuration method, where an execution subject of the service configuration method is the service configuration system described above. The service configuration method is mainly illustrated by a process of determining a target service parameter through a service demand time dimension, and the method may include the following steps 301 to 304.
Step 301: an AMF module of core network equipment detects whether the running time spans a time period or not through a timer; and if the time span of the running time is detected, the AMF module sends an update notification to an SMF module of the core network equipment, wherein the update notification is used for indicating the tracking area number information.
In step 301, when the core network detects that the same terminal runs in a time span period, the SMF actively initiates a QoS modification procedure to complete parameter modification, and issues the QoS modification procedure to the terminal through the base station, so as to implement that QoS policies in different time periods are different, a specific signaling procedure is not exactly the same as a policy scheme based on different areas, and a trigger mechanism of a customized service policy based on a time period is from a timer of the core network instead of the terminal TAC.
Before step 301, the different time periods may be divided in the core network, with time granularity in minutes. Wherein the time period may be divided based on the needs of the traffic. For example: the time period division can be based on normal operation time, warehouse returning time, special festival time, major event guarantee time and the like, the time period of each special requirement is flexibly set, the minimum set granularity of each time period is minutes, the time period length can be set according to needs, and the requirements of customized service strategies are met.
Step 302: the SMF module actively initiates a QoS modification flow to the AMF module to complete parameter modification.
For example: and allocating one set of QoS parameters when the terminal is accessed in the range of the time period 1, and allocating another set of QoS parameters when the terminal is accessed in the time period 2.
Step 303: the AMF module sends a QoS policy parameter notification to the base station.
Step 304: the base station forwards the QoS strategy parameter notification to the terminal, and the terminal updates the QoS parameter based on the QoS strategy parameter notification.
In the embodiment of the application, the service configuration method can realize setting different QoS policy parameters at different time periods to meet different communication requirements. The configuration method can realize the design and application of the 5G vehicle-ground communication customized business strategy in a rail transit application scene, and is beneficial to promoting the application of a 5G network in smart city and rail. The customized service strategy scheme does not need to modify a 3GPP protocol, has low implementation cost and is beneficial to commercial popularization.
Referring to fig. 4, an embodiment of the present application provides a core network device 400, where the core network device 400 includes:
the SMF module 401 is configured to determine a target service parameter according to a service configuration policy when it is detected that the terminal vehicle-mounted terminal meets a service configuration condition; the business configuration policy includes at least one of the following dimensions: a service scene, service demand time and a service demand area;
the SMF module 401 is further configured to send a change request to the base station, where the change request carries a target service parameter; and sending the change request to the terminal through the base station so as to configure corresponding services for the terminal according to the target service parameters.
Optionally, the service demand area is one or more tracking areas, and the tracking areas are areas obtained by dividing a service range corresponding to a track where a vehicle operates in a serving cell according to service quality.
Optionally, when an update request sent by the base station is received and the update request is used to indicate that the tracking area accessed by the terminal is updated, the terminal is determined to meet the service configuration condition.
Optionally, the service configuration policy at least includes a corresponding relationship between a tracking area and a quality of service QoS parameter; the SMF module 401 is further configured to:
and determining the QoS parameter corresponding to the current access tracking area of the terminal as a target service parameter according to the current access tracking area of the terminal and the corresponding relation between the tracking area and the QoS parameter.
Optionally, the AMF module 402 is configured to send, after receiving an update request sent by a base station, number information of a current access tracking area of the terminal to the SMF module 401;
the SMF module 401 is configured to determine, according to the number information and the correspondence between the tracking area and the QoS parameter, a target QoS parameter corresponding to the number information as a target service parameter, and complete a modification process of the target QoS parameter;
the SMF module 401 is configured to send a change request to the base station through the AMF module 402, where the change request carries a target QoS parameter.
Optionally, when it is detected that the current running time of the terminal spans a time period, the terminal is determined to meet a service configuration condition.
Optionally, the service configuration policy at least includes a correspondence between the terminal access time period and a QoS parameter; the SMF module 401 is further configured to:
and the core network equipment determines the QoS parameter corresponding to the current running time of the terminal as a target service parameter according to the current running time of the terminal and the corresponding relation between the terminal access time period and the QoS parameter.
Optionally, the AMF module 402 is configured to detect whether a current operation time of the terminal spans a time period;
the AMF module 402 is configured to send, when it is detected that the current operation time of the terminal spans a time period, number information of a tracking area currently accessed by the terminal to the SMF module 401;
the SMF module 401 is configured to determine, according to the number information and the correspondence between the terminal access time period and the QoS parameter, a target QoS parameter corresponding to the number information as a target service parameter, and complete a modification process of the target QoS parameter;
the SMF module 401 is configured to send a change request to the base station through the AMF module 402, where the change request carries a target QoS parameter.
In the embodiment of the application, the core network device can realize a customized service strategy scheme for 5G vehicle-ground communication, and has the following advantages besides breaking through the single QoS limitation of the whole network:
1) the method supports the combination setting of multi-dimensional service configuration strategies, autonomously controls service logic, and can realize the permutation and combination application of a plurality of strategies;
2) and dynamic setting and modification are supported, the strategy setting is more flexible, and dynamic strategy application can be met.
It can be understood that the core network device can realize a multi-dimensional customized service strategy for vehicle-ground communication, can break through the limitation of a single QoS strategy of the whole traditional network, and can realize flexible network deployment application based on service requirements. The core network equipment can further realize the design and application of 5G vehicle-ground communication customized business strategies facing to a rail transit application scene, and is beneficial to promoting the application of a 5G network in smart city rails. For example: the service configuration strategy can be determined based on dimensions such as region, time and the like, technical support is provided for service requirements of various scenes of the smart city rail, and diversified requirements of a future smart city rail system on communication can be met.
Referring to fig. 5, an embodiment of the present application provides another core network device 500, including: a processor 501, a transceiver 502, a memory 503, and a bus interface.
Among other things, the processor 501 may be responsible for managing the bus architecture and general processing. The memory 503 may store data used by the processor 501 in performing operations.
In this embodiment, the core network device 500 may further include: a computer program stored on the memory 503 and executable on the processor 501, which computer program, when executed by the processor 501, performs the steps in the method as described above.
In fig. 5, the bus architecture may include any number of interconnected buses and bridges, with one or more processors represented by processor 501 and various circuits of memory represented by memory 503 being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further in this application. The bus interface provides an interface. The transceiver 502 may be a number of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over a transmission medium.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein. The scheme in the embodiment of the application can be implemented by adopting various computer languages, such as object-oriented programming language Java and transliterated scripting language JavaScript.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
In the description of the present application, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be considered as limiting the present application.
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 application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically connected, electrically connected or can communicate with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
While the preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all alterations and modifications as fall within the scope of the application.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.

Claims (11)

1. A service configuration method is applied to a core network device, and the method comprises the following steps:
when detecting that the terminal meets the service configuration condition, determining a target service parameter according to a service configuration strategy; the business configuration policy includes at least one of the following dimensions: the method comprises the steps that a service scene, service demand time and a service demand area of a track position where a running vehicle is located at present are obtained;
sending a change request to a base station, wherein the change request carries target service parameters; and sending the change request to the terminal through the base station so as to configure corresponding services for the terminal according to the target service parameters.
2. The traffic configuration method according to claim 1, wherein the traffic demand area is one or more tracking areas, and the tracking areas are areas obtained by dividing serving cells according to service quality.
3. The service configuration method according to claim 2, wherein the terminal is determined to satisfy the service configuration condition when an update request sent by the base station is received and the update request is used to indicate that the tracking area accessed by the terminal is updated.
4. The service configuration method according to claim 3, wherein the service configuration policy at least includes a correspondence between tracking areas and quality of service (QoS) parameters;
the determining the target service parameter according to the service configuration policy includes:
and determining the QoS parameter corresponding to the current access tracking area of the terminal as a target service parameter according to the current access tracking area of the terminal and the corresponding relation between the tracking area and the QoS parameter.
5. The service configuration method according to claim 4, wherein the core network device at least comprises: the system comprises an authentication management function AMF module and a session management function SMF module;
the determining, according to the current access tracking area of the terminal and the corresponding relationship between the tracking area and the QoS parameter, the QoS parameter corresponding to the current access tracking area of the terminal as the target service parameter includes:
the AMF module sends the number information of the current access tracking area of the terminal to the SMF module after receiving an updating request sent by a base station;
the SMF module determines a target QoS parameter corresponding to the number information as a target service parameter according to the number information and the corresponding relation between the tracking area and the QoS parameter, and finishes the modification process of the target QoS parameter;
and the SMF module sends a change request to the base station through the AMF module, wherein the change request carries a target QoS parameter.
6. The service provisioning method of claim 1, wherein the terminal is deemed to satisfy the service provisioning condition when it is detected that the current running time of the terminal spans a time period.
7. The service configuration method according to claim 6, wherein the service configuration policy at least includes a correspondence between the terminal access time period and a QoS parameter;
determining the target service parameter according to the service configuration policy comprises:
and the core network equipment determines the QoS parameter corresponding to the current running time of the terminal as a target service parameter according to the current running time of the terminal and the corresponding relation between the terminal access time period and the QoS parameter.
8. The service configuration method according to claim 7, wherein the core network device at least comprises: an AMF module and an SMF module;
the core network equipment determines the QoS parameter corresponding to the current operation time of the terminal as the target service parameter according to the current operation time of the terminal and the corresponding relation between the terminal access time period and the QoS parameter, and the determination comprises the following steps:
the AMF module detects whether the current operation time of the terminal spans a time period;
when detecting that the current running time of the terminal spans a time period, the AMF module sends the number information of the current access tracking area of the terminal to the SMF module;
the SMF module determines a target QoS parameter corresponding to the number information as a target service parameter according to the number information and the corresponding relation between the terminal access time period and the QoS parameter, and finishes the modification process of the target QoS parameter;
and the SMF module sends a change request to the base station through the AMF module, wherein the change request carries a target QoS parameter.
9. A core network device, comprising:
the SMF module is used for determining a target service parameter according to a service configuration strategy when detecting that the terminal vehicle-mounted terminal meets a service configuration condition; the business configuration policy includes at least one of the following dimensions: a service scene, service demand time and a service demand area;
the SMF module is also used for sending a change request to the base station, wherein the change request carries the target service parameters; and sending the change request to the terminal through the base station so as to configure corresponding services for the terminal according to the target service parameters.
10. A core network device, comprising:
a memory;
a processor; and
a computer program;
wherein the computer program is stored in the memory and configured to be executed by the processor to implement the method of any one of claims 1 to 8.
11. A computer-readable storage medium, having stored thereon a computer program; the computer program is executed by a processor to implement the method of any one of claims 1 to 8.
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