CN108243456B - Policy control method and policy controller - Google Patents
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- CN108243456B CN108243456B CN201611203576.3A CN201611203576A CN108243456B CN 108243456 B CN108243456 B CN 108243456B CN 201611203576 A CN201611203576 A CN 201611203576A CN 108243456 B CN108243456 B CN 108243456B
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- 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
- H04W28/10—Flow control between communication endpoints
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/10—Flow control; Congestion control
- H04L47/38—Flow control; Congestion control by adapting coding or compression rate
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/50—Network services
- H04L67/56—Provisioning of proxy services
- H04L67/568—Storing data temporarily at an intermediate stage, e.g. caching
- H04L67/5682—Policies or rules for updating, deleting or replacing the stored data
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- 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
- H04W28/10—Flow control between communication endpoints
- H04W28/14—Flow control between communication endpoints using intermediate storage
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/53—Allocation or scheduling criteria for wireless resources based on regulatory allocation policies
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
- H04W8/04—Registration at HLR or HSS [Home Subscriber Server]
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Abstract
The invention discloses a strategy control method and a strategy controller, and relates to the technical field of mobile communication. The method comprises the following steps: the strategy controller receives data distribution information; the strategy controller determines a data distribution strategy according to the data distribution information; and the strategy controller sends a data distribution strategy to the mobile edge computing MEC platform so that the MEC platform distributes the data passing through the MEC platform according to the data distribution strategy. Therefore, a data distribution strategy is dynamically formulated, and intelligent data distribution is further realized.
Description
Technical Field
The invention relates to the field of wireless communication, in particular to a policy control method and a Mobile Edge Computing (MEC) platform.
Background
The mobile edge refers to a location on and closer to the user than the radio access side with respect to the core network of the mobile network. The MEC (Mobile Edge Computing) refers to providing an IT service environment and cloud Computing capability at an Edge position of a Mobile network, and aims to reduce service delay, save network bandwidth, and improve service transmission efficiency, thereby providing a high-quality service experience for a user. The mobile edge computing changes the state of the traditional mobile network separated from the service, sinks the service platform to the edge of the network, provides service computing and data caching capabilities for mobile users nearby, provides third-party application integration, and realizes service innovation of a mobile edge entrance.
The MEC platform is generally connected in series behind the base station, and the shunting rules matching with specific 5-tuple are pre-configured locally. The MEC platform determines whether the data flowing through is forwarded to the local network or passed through to the core network according to locally pre-configured rules.
The current local shunting of mobile edge computing has the following problems: the manner in which the breakout rules are preconfigured on the MEC platform is relatively static and inflexible. For example, when the traffic with high MEC rate and low latency causes congestion of the wireless air interface, the static offloading policy cannot be adjusted. There is currently no efficient way to implement intelligent, dynamic shunt control at the MEC.
Disclosure of Invention
The invention aims to solve the technical problems that: how to realize dynamic data distribution strategy formulation and intelligent data distribution.
According to an aspect of an embodiment of the present invention, there is provided a policy control method, including: the strategy controller receives data distribution information; the strategy controller determines a data distribution strategy according to the data distribution information; and the strategy controller sends a data distribution strategy to the mobile edge computing MEC platform so that the MEC platform distributes the data passing through the MEC platform according to the data distribution strategy.
In some embodiments, the policy controller is a policy control function PCRF; the strategy controller sending the data distribution strategy to the mobile edge computing MEC platform comprises the following steps: and the PCRF sends the data distribution strategy to the MEC platform through the Gx interface or the representational state transfer Rest interface.
In some embodiments, the policy controller is a 5G control plane device; the strategy controller sending the data distribution strategy to the mobile edge computing MEC platform comprises the following steps: and the 5G control plane equipment sends the data distribution strategy to the MEC platform through a control plane-user plane CP-UP interface.
In some embodiments, the data offloading information includes requirement information of the MEC platform; the policy controller determining the data distribution policy according to the data distribution information includes: and the strategy controller determines a data distribution strategy for distributing the data to a local cache or a central cache according to the requirement information of the MEC platform.
In some embodiments, the data splitting information comprises location information of the user; the policy controller determining the data distribution policy according to the data distribution information includes: and the strategy controller determines whether the base station to which the user belongs is associated with the MEC platform according to the position information of the user, so as to determine a data distribution strategy for distributing the data to a local cache or a central cache.
In some embodiments, the data offload information comprises network congestion information; the policy controller determining the data distribution policy according to the data distribution information includes: and the strategy controller determines a data coding format according to the network congestion information so as to determine a data distribution strategy for distributing the data to a local cache or a central cache corresponding to the data coding format.
In some embodiments, the method further comprises: and the strategy controller sends a data distribution strategy change message to the MEC platform to instruct the MEC platform to update or delete the data distribution strategy according to the data distribution strategy change message.
According to an aspect of an embodiment of the present invention, there is provided a policy controller including: the information receiving module is used for receiving data distribution information; the strategy determining module is used for determining a data distribution strategy according to the data distribution information; and the strategy sending module is used for sending the data distribution strategy to the mobile edge computing MEC platform so that the MEC platform can distribute the data passing through the MEC platform according to the data distribution strategy.
In some embodiments, the policy controller is a policy control function PCRF; the policy sending module is used for: and sending the data distribution strategy to the MEC platform through a Gx interface or a representational state transfer Rest interface.
In some embodiments, the policy controller is a 5G control plane device; the policy sending module is used for: and sending the data distribution strategy to the MEC platform through a control plane-user plane CP-UP interface.
In some embodiments, the data offloading information includes requirement information of the MEC platform; the policy determination module is to: and determining a data distribution strategy for distributing the data to a local cache or a central cache according to the requirement information of the MEC platform.
In some embodiments, the data splitting information comprises location information of the user; the policy determination module is to: and determining whether the base station to which the user belongs is associated with the MEC platform according to the position information of the user, thereby determining a data distribution strategy for distributing the data to a local cache or a central cache.
In some embodiments, the data offload information comprises network congestion information; the policy determination module is to: and determining a data encoding format according to the network congestion information, thereby determining a data distribution strategy for distributing the data to a local cache or a central cache corresponding to the data encoding format.
In some embodiments, the policy controller further comprises: and the change message sending module is used for sending the data distribution strategy change message to the MEC platform so as to instruct the MEC platform to update or delete the data distribution strategy according to the data distribution strategy change message.
In the invention, the strategy controller receives the data distribution information and determines a data distribution strategy according to the data distribution information, the strategy controller sends the data distribution strategy to the mobile edge computing MEC platform, and the MEC platform distributes the data passing through the MEC platform according to the data distribution strategy, thereby realizing dynamic formulation of the data distribution strategy and further realizing intelligent data distribution.
Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 shows a schematic flow chart of an embodiment of the policy control method of the present invention.
FIG. 2 shows a 4G network structure related to data offloading
Fig. 3 shows a 5G network structure related to data offloading.
Fig. 4 shows a schematic structural diagram of an embodiment of the policy controller of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
An embodiment of the policy control method of the present invention will first be described with reference to fig. 1.
Fig. 1 shows a schematic flow chart of an embodiment of the policy control method of the present invention. As shown in fig. 1, the policy control method of the present embodiment includes:
step S102, the strategy controller receives data distribution information.
In a 4G environment, the policy controller may be a policy control function PCRF, and a 4G network structure related to data offloading is shown in fig. 2. In a 5G environment, the policy controller may be a 5G control plane device, and a 5G network structure related to data offloading is shown in fig. 3.
And step S104, the strategy controller determines a data distribution strategy according to the data distribution information.
The data distribution information may be demand information of the MEC platform, location information of the user, or network congestion information.
After the policy controller receives the demand information of the MEC platform, a data offloading policy for offloading data to the local cache or the central cache may be determined according to the demand information of the MEC platform. For example, the MEC platform requirement information points to offloading data to the local cache, and the policy controller may formulate a data offloading policy for offloading data to the local cache.
After the policy controller receives the location information of the user, a data offloading policy for offloading data to a local cache or a central cache may be determined according to whether the base station to which the user belongs is associated with the MEC platform. For example, the location information of the user indicates that the base station to which the user belongs is associated with the MEC platform, and the policy controller may make a data offloading policy for offloading data to the local cache.
After the policy controller receives the network congestion information, the data encoding format can be determined according to the network congestion information, so that a data distribution policy for distributing the data to a local cache or a central cache corresponding to the data encoding format is determined. For example, the network congestion information indicates that the network link is congested at this time, and the policy controller may determine the data encoding format with a high compression ratio according to the network congestion information, so as to formulate a data splitting policy for splitting data into a local cache or a central cache corresponding to the data encoding format with a high compression ratio.
Step S106, the strategy controller sends a data distribution strategy to the MEC platform, and the MEC platform receives the data distribution strategy sent by the strategy controller.
The data offloading policy may include associated quintuple description information. In a 4G environment, the policy controller may be a policy control function PCRF, and the PCRF may send the data offloading policy to the MEC platform through a Gx interface or a representational state transfer Rest interface. In a 5G environment, the policy controller may be a 5G control plane device, and the 5G control plane device may send the data offloading policy to the MEC platform through a control plane-user plane CP-UP.
And step S108, the MEC platform shunts the data passing through the MEC platform according to the data shunting strategy.
In the above embodiment, the policy controller receives the data offloading information and determines the data offloading policy according to the data offloading information, the policy controller sends the data offloading policy to the mobile edge computing MEC platform, and the MEC platform offloads the data passing through the MEC platform according to the data offloading policy, so that a dynamic data offloading policy is formulated, and intelligent data offloading is realized.
Optionally, the policy control method of the present invention further includes:
step S110, the policy controller sends a data offloading policy change message to the MEC platform, and the MEC platform receives the data offloading policy change message sent by the policy controller.
Wherein, the data offloading policy change message may indicate to update or delete the data offloading policy.
And step S112, the MEC platform updates or deletes the data distribution strategy according to the data distribution strategy change message.
For example, the policy controller may send a new data offloading policy to the MEC platform, the new data offloading policy may override the original data offloading policy, and the MEC platform performs the data offloading operation according to the new data offloading policy. For another example, the data offloading policy change message that the policy controller may send to the MEC platform may further instruct the MEC platform to delete the data offloading policy.
In the above embodiment, the MEC platform may perform corresponding adjustment on the data offloading policy according to the data offloading policy change message, thereby further implementing dynamic formulation of the data offloading policy and intelligent data offloading.
One embodiment of the policy controller of the present invention is described below in conjunction with fig. 4.
Fig. 4 shows a schematic structural diagram of an embodiment of the policy controller of the present invention. As shown in fig. 4, the policy controller 40 in this embodiment includes:
an information receiving module 402, configured to receive data offloading information.
And a policy determining module 404, configured to determine a data offloading policy according to the data offloading information.
The policy sending module 406 is configured to send a data offloading policy to the mobile edge computing MEC platform, so that the MEC platform offloads data passing through the MEC platform according to the data offloading policy.
In one embodiment, the policy controller 40 is a policy control function PCRF. The policy sending module 406 is configured to: and sending the data distribution strategy to the MEC platform through a Gx interface or a representational state transfer Rest interface.
In one embodiment, the policy controller 40 is a 5G control plane device. The policy sending module 406 is configured to: and sending the data distribution strategy to the MEC platform through a control plane-user plane CP-UP interface.
In one embodiment, the data offloading information includes requirement information of the MEC platform. The policy determination module 404 is configured to: and determining a data distribution strategy for distributing the data to a local cache or a central cache according to the requirement information of the MEC platform.
In one embodiment, the data stream information includes location information of the user. The policy determination module 404 is configured to: and determining whether the base station to which the user belongs is associated with the MEC platform according to the position information of the user, thereby determining a data distribution strategy for distributing the data to a local cache or a central cache.
In one embodiment, the data offload information includes network congestion information. The policy determination module 404 is configured to: and determining a data encoding format according to the network congestion information, thereby determining a data distribution strategy for distributing the data to a local cache or a central cache corresponding to the data encoding format.
Aiming at the problem that no effective method is available for realizing the dynamic flow distribution control of the MEC at present, the MEC platform provided by the embodiment respectively provides adaptive strategy controllers in 4G and 5G networks, and newly adds a lightweight interface or utilizes a subsequent standardized control plane interface and a subsequent standardized user plane interface to transmit the MEC dynamic flow distribution strategy, so that the problems of curing the MEC flow distribution strategy, difficulty in strategy updating and the like are solved, and the intelligent and fine management of the MEC data flow by an operator is realized.
In one embodiment, the policy controller 40 further comprises: the change message sending module 408 is configured to send a data offloading policy change message to the MEC platform, so as to instruct the MEC platform to update or delete the data offloading policy according to the data offloading policy change message.
In the above embodiment, the MEC platform may correspondingly adjust the data offloading policy according to the data offloading policy change message, thereby further implementing dynamic formulation of the data offloading policy and intelligent data offloading.
It will be understood by those skilled in the art that all or part of the steps for implementing the above embodiments may be implemented by hardware, or may be implemented by a program instructing relevant hardware, and the program may be stored in a computer-readable storage medium, and the above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, etc.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent replacements, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A policy control method, comprising:
the 5G control surface equipment receives the demand information of the mobile edge computing MEC platform, determines a data distribution strategy for distributing the data to a local cache or a central cache according to the data distribution position pointed by the demand information of the MEC platform, and sends the data distribution strategy to the mobile edge computing MEC platform through a control surface-user surface interface so that the MEC platform can distribute the data passing through the MEC platform according to the data distribution strategy.
2. A policy control method, comprising:
the 5G control plane equipment receives position information of a user, determines whether a base station to which the user belongs is associated with a mobile edge computing MEC platform or not according to the position information of the user, and determines a data distribution strategy for distributing data to a local cache or a central cache, wherein if the position information of the user indicates that the base station to which the user belongs is associated with the MEC platform, the corresponding data distribution strategy is to distribute the data to the local cache, and the data distribution strategy is sent to the mobile edge computing MEC platform through a control plane-user plane interface, so that the MEC platform can distribute the data passing through the MEC platform according to the data distribution strategy.
3. A policy control method, comprising:
the 5G control plane equipment receives network congestion information, determines a data coding format according to the network congestion information, and determines a data distribution strategy for distributing data to a local cache or a central cache corresponding to the data coding format, wherein if the network congestion information indicates that a network link is congested at the moment, the data coding format with a high compression ratio is determined, the corresponding data distribution strategy is to distribute the data to the local cache or the central cache corresponding to the high compression ratio coding format, and the data distribution strategy is sent to the mobile edge computing MEC platform through a control plane-user plane interface, so that the MEC platform distributes the data passing through the MEC platform according to the data distribution strategy.
4. The method of any one of claims 1-3, further comprising:
and the 5G control surface equipment sends a data distribution strategy change message to the MEC platform so as to instruct the MEC platform to update or delete the data distribution strategy according to the data distribution strategy change message.
5. A 5G control plane device comprising:
the information receiving module is used for receiving the requirement information of the mobile edge computing MEC platform;
the policy determination module is used for determining a data distribution policy for distributing data to a local cache or a central cache according to a data distribution position pointed by the demand information of the MEC platform;
and the strategy sending module is used for sending the data distribution strategy to the mobile edge computing MEC platform through a control plane-user plane interface so that the MEC platform distributes the data passing through the MEC platform according to the data distribution strategy.
6. A 5G control plane device comprising:
the information receiving module is used for the position information of the user;
the strategy determining module is used for determining whether a base station to which the user belongs is associated with the mobile edge computing MEC platform or not according to the position information of the user, and determining a data distribution strategy for distributing data to a local cache or a central cache, wherein if the position information of the user indicates that the base station to which the user belongs is associated with the MEC platform, the corresponding data distribution strategy is to distribute the data to the local cache;
and the strategy sending module is used for sending the data distribution strategy to the mobile edge computing MEC platform through a control plane-user plane interface so that the MEC platform distributes the data passing through the MEC platform according to the data distribution strategy.
7. A 5G control plane device comprising:
the information receiving module is used for receiving network congestion information;
the strategy determining module is used for determining a data coding format according to the network congestion information and determining a data distribution strategy for distributing data to a local cache or a central cache corresponding to the data coding format, wherein if the network congestion information indicates that a network link is congested at the moment, the data coding format with a high compression ratio is determined, and the corresponding data distribution strategy is to distribute the data to the local cache or the central cache corresponding to the high compression ratio coding format;
and the strategy sending module is used for sending the data distribution strategy to the mobile edge computing MEC platform through a control plane-user plane interface so that the MEC platform distributes the data passing through the MEC platform according to the data distribution strategy.
8. The 5G control plane device of any one of claims 5 to 7, further comprising:
and the change message sending module is used for sending a data distribution strategy change message to the MEC platform so as to instruct the MEC platform to update or delete the data distribution strategy according to the data distribution strategy change message.
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| CN111083737B (en) * | 2018-10-19 | 2021-04-16 | 大唐移动通信设备有限公司 | Method and device for shunting data in edge MEC |
| CN109861962A (en) * | 2018-11-29 | 2019-06-07 | 徐州立讯信息科技有限公司 | Wireless video live-experience support method and the equipment and system for realizing this method |
| CN111629401B (en) * | 2019-02-27 | 2021-11-26 | 大唐移动通信设备有限公司 | Data distribution method and system for edge application |
| CN110225475B (en) * | 2019-05-16 | 2020-07-14 | 中国联合网络通信集团有限公司 | User access method and core network |
| CN110896411B (en) * | 2019-07-15 | 2021-07-27 | 腾讯科技（深圳）有限公司 | Service processing method and related equipment |
| CN114079637B (en) * | 2020-08-04 | 2023-10-27 | 中国移动通信集团重庆有限公司 | Service processing method and system based on mobile edge calculation |
| CN112333107A (en) * | 2020-11-12 | 2021-02-05 | 中国联合网络通信集团有限公司 | Method, device and storage medium for determining strategy for sending downlink data |
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