CN106712989B - QoS management method and device - Google Patents

Abstract

The present invention provides a QoS management method and device. The method includes: when it is determined that a QoS carrying service needs to be triggered, sending a request message for obtaining QoS parameter information of the user's current service to a user QoS data storage network element; receiving the user QoS data After storing the QoS parameter information returned by the network element, select a transmission link for the user according to the QoS parameter information, encapsulate the QoS parameter information in a message, and deliver the message to the policy execution monitoring point. The invention can realize the end-to-end QoS guarantee service.

Description

A method and device for QoS management

technical field

The present invention relates to the technical field of mobile communication, and in particular, to a method and device for QoS (Quality of Service, quality of service) management.

Background technique

The rapid development of mobile communication in the past 20 years has brought a huge impact on people's way of life, work style, and social politics and economy. Human society has entered an efficient information age, and the demand for business applications in all aspects has shown an explosive growth, which will bring huge challenges to the future wireless mobile bandwidth system in terms of frequency, technology and operation. The 5G mobile broadband system will become a wireless mobile communication system that meets the needs of the human information society after 2020. It is a multi-service and multi-technology fusion network. Through technological evolution and innovation, it will meet the needs of a wide range of data and connected services in the future. Development needs, improve user experience.

With the improvement of the bandwidth and capability of wireless mobile communication systems, the rapid development of mobile Internet and Internet of Things applications for individuals and industries, the ecology of mobile communication-related industries will undergo important changes. Wireless mobile communication technology and computer and information technology will be more closely and deeply integrated, and integrated circuits, device technology, software technology, etc. will continue to develop rapidly, supporting the future development of the 5G mobile broadband industry. According to the analysis of the future 5G vision based on social responsibilities and functions, end users, business applications and network operations, the key capability requirements of 5G are summarized as follows from a technical point of view:

1,000-fold increase in traffic and significant increase in throughput per unit area: Based on the growth trend of mobile communication network data traffic in recent years, the industry predicts that by 2020, the total global mobile data traffic will reach 1,000 times the total mobile data traffic in 2010. This requires that the throughput capacity per unit area, especially the throughput capacity during busy hours, is also improved by 1000 times, and needs to reach more than 100Gbps/km ² .

100 times the number of connected devices: In the future, the range of 5G network users will be greatly expanded. With the rapid development of the Internet of Things, the industry expects that the number of connected devices will reach 50-100 billion by 2020. This requires that the number of devices supported in a unit coverage area will increase greatly. In some scenarios, the number of devices connected through a 5G mobile network per unit area will reach 1 million/km ² , a 100-fold increase compared to 4G.

Smaller latency and higher reliability: 5G networks need to provide users with an always-on experience and meet the needs of more high-value scenarios such as industrial control and emergency communications. In this aspect, it is required to further reduce the user plane delay and control plane delay, which is 5-10 times shorter than that of 4G, reach the limit of human response such as 5ms (tactile response), and provide a real always-on experience. On the other hand, some businesses that concern the safety of people's lives and major property require end-to-end reliability to be increased to 99.999% or even 100%.

The existing 4G evolved packet system (Evolved Packet System, EPS for short) QoS (Quality of Service) management architecture, as shown in Figure 1: The existing quality (QoS) management control is mainly controlled by nodes such as terminals, base stations and packet gateways. For control, the QoS parameters subscribed by the user are transmitted by the control network element Mobility Management Entity (MME) to nodes such as terminals, base stations and packet gateways through control plane signaling. This processing mechanism mainly has the following problems:

There is no end-to-end QoS guarantee service between the terminal and the server. As shown in Figure 1, the transmission network between the base station and the packet gateway, as well as the gateway and the external server, have not achieved perfect QoS guarantee;

In addition, in order to implement QoS management, UEs, base stations, and packet gateway forwarding plane devices need to establish bearer connections and store bearer status information, which increases the complexity of the forwarding device and may ultimately affect the forwarding performance of the forwarding device.

SUMMARY OF THE INVENTION

The technical problem to be solved by the present invention is to provide a QoS management method and device to realize end-to-end QoS guarantee service.

In order to solve the above technical problems, the present invention provides a method for QoS parameter management, including:

When it is determined that the carrying QoS service needs to be triggered, a request message for acquiring the QoS parameter information of the user's current service is sent to the user QoS data storage network element;

After receiving the QoS parameter information returned by the user QoS data storage network element, select a transmission link for the user according to the QoS parameter information, encapsulate the QoS parameter information in a message, and deliver the message to the policy Execute monitoring points.

Further, the above method also has the following characteristics: the determination that the QoS service needs to be triggered to be carried is realized according to the following conditions:

After receiving the message sent by the user, analyze the user equipment type and the service initiated by the current user, if the QoS parameter service needs to be delivered, and there is no valid current user QoS data.

Further, the above method also has the following characteristics:

The request message includes one or more of the following: user identity, terminal type parameter and initiated service type parameter;

The QoS parameter information includes one or more of the following: packet delay, transmission jitter, maximum guaranteed bandwidth, guaranteed bandwidth, priority, link level, and service chain identifier.

In order to solve the above problems, the present invention also provides a device for managing QoS parameters, including:

a determining module, configured to send a request message for acquiring the QoS parameter information of the current service of the user to the user QoS data storage network element when it is determined that the service carrying the QoS needs to be triggered;

The processing module is configured to, after receiving the QoS parameter information returned by the user QoS data storage network element, select a transmission link for the user according to the QoS parameter information, encapsulate the QoS parameter information in a message, and encapsulate the QoS parameter information in a message. The message is delivered to the policy enforcement monitoring point.

Further, the above-mentioned device also has the following characteristics:

The determining module determines that the need to trigger the carrying of the QoS service is realized according to the following conditions: after receiving the message sent by the user, analyzing the user equipment type and the service initiated by the current user, if the QoS parameter service needs to be transmitted, and there is no Valid current user QoS data.

Further, the above-mentioned device also has the following characteristics:

The device is an access network element, a terminal, an edge gateway or a server.

In order to solve the above problems, the present invention also provides a method for managing QoS parameters, including:

After receiving the message, the policy execution monitoring point obtains the QoS parameter information in the message;

The QoS parameter information in the packet is deleted, or the packet is forwarded to the policy execution monitoring point of the last hop, and the policy execution monitoring point of the last hop deletes the QoS parameter information in the packet.

Further, the above method also has the following characteristics: after obtaining the QoS parameter information in the message, the method further includes:

When it is determined according to the QoS parameter information that the current device and link do not meet the service QoS requirements, the network management network element is notified to perform network optimization.

In order to solve the above problems, the present invention also provides a policy execution monitoring point, which includes:

an obtaining module, configured to obtain the QoS parameter information in the message after receiving the message;

The processing module is used to delete the QoS parameter information in the packet, or forward the packet to the policy execution monitoring point of the last hop, and the policy execution monitoring point of the last hop deletes the information in the packet. QoS parameter information.

Further, the above-mentioned policy execution monitoring point also has the following characteristics:

The processing module is further configured to notify the network management network element to perform network optimization when it is determined according to the QoS parameter information that the current device and link do not meet the service QoS requirements.

In order to solve the above problems, the present invention also provides a method for managing QoS parameters, which is applied to a network element storing user QoS data, including:

Receive a request message for obtaining the QoS parameter information of the user's current service;

Send the QoS parameter information of the user's current service to the device that sends the request message.

Further, the above method also has the following characteristics:

The QoS parameter information includes one or more of the following: packet delay, transmission jitter, maximum guaranteed bandwidth, guaranteed bandwidth, priority, link level, and service chain identifier.

In order to solve the above problems, the present invention also provides a network element that stores user QoS data storage, including:

a receiving module, configured to receive a request message for obtaining the QoS parameter information of the current service of the user;

The sending module is configured to send the QoS parameter information of the current service of the user to the device sending the request message.

To sum up, the present invention provides a QoS management method and device, which can realize an end-to-end QoS guarantee service.

Description of drawings

Fig. 1 is the architecture diagram of the 4G EPS QoS management of the prior art;

2 is a flowchart of a method for QoS management according to an embodiment of the present invention;

3 is a flowchart of a method for QoS management applied to a policy enforcement monitoring point (Policy Enforcement & Monitor Point, PEMP for short) according to an embodiment of the present invention;

4 is a structural diagram of Embodiment 1 of the present invention;

5 is a structural diagram of Embodiment 2 of the present invention;

6 is a flowchart of a method for managing QoS parameters for uplink data packets according to Embodiment 1 of the present invention;

7 is a flowchart of a method for managing QoS parameters of downlink data packets according to Embodiment 2 of the present invention;

8 is a schematic diagram of an apparatus for managing QoS parameters according to an embodiment of the present invention;

9 is a schematic diagram of a PEMP according to an embodiment of the present invention;

FIG. 10 is a schematic diagram of a network element according to an embodiment of the present invention.

Detailed ways

In order to make the objectives, technical solutions and advantages of the present invention clearer, the embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that, the embodiments in the present application and the features in the embodiments may be arbitrarily combined with each other if there is no conflict.

FIG. 2 is a flowchart of a method for managing QoS parameters according to an embodiment of the present invention. As shown in FIG. 2 , the method in this embodiment includes:

Step 11: When it is determined that the carrying QoS service needs to be triggered, a request message for obtaining the QoS parameter information of the current service of the user is sent to the user QoS data storage network element;

Step 12: After receiving the QoS parameter information returned by the user QoS data storage network element, select a transmission link for the user according to the QoS parameter information, encapsulate the QoS parameter information in a message, and encapsulate the message It is passed to the Policy Enforcement&Monitor Point (PEMP for short).

The execution body of the method in this embodiment may be an access network element, or a terminal, or an edge gateway, or a server.

FIG. 3 is a flowchart of a method for QoS parameter management applied to PEMP according to an embodiment of the present invention. As shown in FIG. 3 , the method in this embodiment includes:

Step 21: After receiving the message, PEMP obtains the QoS parameter information in the message;

Step 22: Delete the QoS parameter information in the packet, or forward the packet to the PEMP of the last hop, and the PEMP of the last hop deletes the QoS parameter information in the packet.

FIG. 4 is an architecture diagram of Embodiment 1 of the present invention. The architecture of this embodiment includes:

Access network element: It is mainly responsible for obtaining QoS parameter information from the user QoS data storage network element when a user initiates an uplink service, reserving bandwidth for the user according to the QoS information subscribed by the user and the services accessed, and inserting the user QoS into the packet. parameter information, select a QoS path for it, and forward the packet to PEMP;

The edge gateway is mainly responsible for obtaining QoS parameter information from the user QoS data storage network element when it is mainly responsible for downlink data packets.

PEMP is mainly responsible for detecting whether the path meets the QoS requirements according to the QoS information in the packet. When the path quality decreases, an alarm is sent to the network management element, and the last hop PEMP deletes the QoS parameter information in the packet.

FIG. 5 is an architecture diagram of Embodiment 2 of the present invention. In the architecture of FIG. 5, there are no access network elements and edge gateways. The user equipment and/or the external server in this embodiment directly obtains the QoS parameter information from the user QoS data storage network element. in:

User equipment: It is mainly responsible for obtaining QoS parameter information from the user QoS data storage network element when a user initiates an uplink service, reserving bandwidth for the user according to the QoS information subscribed by the user and the services accessed, and inserting the user QoS parameter information into the packet. , and select a QoS path for it, and forward the packet to PEMP;

When the external server is mainly responsible for downlink data packets, it obtains QoS parameter information from the user QoS data storage network element, reserves bandwidth for the user according to the QoS information and services subscribed by the user, selects a QoS path, and forwards the packet to PEMP;

PEMP is mainly responsible for detecting whether the path meets the QoS requirements according to the QoS information in the packet. When the path quality decreases, an alarm is sent to the network management element, and the last hop PEMP deletes the QoS parameter information in the packet.

6 is a flowchart of a method for managing QoS parameters for uplink data packets according to Embodiment 1 of the present invention, including the following steps:

Step 601, the access network element receives the uplink message sent by the user, analyzes the user equipment type and the service initiated by the current user, and if it is judged that the QoS parameter service or user type needs to be transmitted, and there is no valid current user QoS data, then initiate Step 602;

In the architecture model of FIG. 5, the access network element behavior may be performed by the user equipment.

Step 602, the access network element or the user equipment sends a request for obtaining the QoS parameter information of the user's current service to the user QoS data storage network element, and the request carries the user identity (such as the user source IP address, or the user MSISDN (MobileStation Integrated Services Digital network). Dumber, mobile station integrated service digital network number), etc.), the terminal type parameter, and the initiated service type parameter are not limited to the above parameters, and one of the parameters may also be used.

The user QoS data storage network element selects the QoS parameter information for subscription according to the user's identity and other parameter information, such as the type of service initiated by the user, and the QoS parameter information may include but is not limited to the following:

Packet delay, transmission jitter, maximum guaranteed bandwidth, guaranteed bandwidth, priority and other information, link level, service chain identification and other information.

The user QoS data storage network element returns the required QoS information of the current service to the access network element or the user equipment.

Step 603: The access network element or the user equipment selects an appropriate transmission link for the user according to the user's QoS parameters, and encapsulates the QoS parameter information in a packet, and transmits the packet to the next-hop PEMP.

Step 604, PEMP obtains the QoS parameter information in the message, and further judges whether the current device and link meet the service QoS requirements, if not, go to step 605, otherwise directly transfer to step 606, if this PEMP is the last hop PEMP, the QoS parameter information in the packet is directly deleted.

Step 605 , optimize the network by notifying the network management device, and then turn to step 606 , if the current PEMP is the PEMP of the last hop, directly delete the QoS parameter information in the packet.

The network management device re-updates the link routing path.

Step 606, the PEMP sends the data packet to the last hop PEMP, and the last hop PEMP is responsible for deleting the QoS parameter information in the packet, and delivering the packet to the external server.

7 is a flowchart of a method for managing QoS parameters of downlink data packets according to Embodiment 2 of the present invention, including the following steps:

Step 701: The external server transmits the message to the ingress PEMP, the ingress PEMP judges the user type and the current service type, and forwards the message to the edge gateway if the QoS service needs to be triggered.

In step 702, the edge gateway sends a request for obtaining the QoS parameter information of the current service of the user to the user QoS data storage network element, and the request carries the user identity (such as the user source IP address, or the user MSISDN (Mobile Station Integrated Services Digital network Dumber, Mobile Station Integrated Services Digital network Dumber, Mobile Station Integrated Services Digital network Dumber, Mobile Station Integrated Services Digital network Dumber, Mobile Station Integrated Services Digital network Dumber, Mobile Station Integrated Services Digital network Dumber, Mobile Station Integrated Services Digital network Dumber, Mobile Station Integrated Services Digital network Dumber, Mobile Station Integrated Services Digital network Dumber, Mobile Station Integrated Services Digital network Dumber). Service digital network number), etc.), terminal type parameters, and initiated service type parameters, are not limited to the above parameters, and can also be one of the parameters.

The user QoS data storage network element selects the QoS parameter information for subscription according to the user's identity and other parameter information, such as the type of service initiated by the user, and the QoS parameter information may include but is not limited to the following:

Packet delay, transmission jitter, maximum guaranteed bandwidth, guaranteed bandwidth, priority and other information, link level, service chain identification and other information.

The user QoS data storage network element returns the required QoS information of the current service to the marginal network element or the user equipment.

Step 703: The edge gateway selects an appropriate transmission link for the user according to the user's QoS parameters, and encapsulates the QoS parameter information in a packet, and transmits the packet to the next hop PEMP.

Step 704, PEMP obtains the QoS parameter information in the message, and further judges whether the current device and link meet the service QoS request, if not, go to step 705, otherwise pass it to the last hop PEMP, and the last hop PEMP deletes the message. QoS parameter information in the text.

Step 705, optimize the network by notifying the network management network element.

The network management network element re-updates the link routing path.

When the architecture of FIG. 5 is adopted, the actions of steps 701-703 are completed by an external server.

FIG. 8 is a schematic diagram of an apparatus for managing QoS parameters according to an embodiment of the present invention. As shown in FIG. 8 , the apparatus in this embodiment includes:

The determining module 81 is configured to send a request message for obtaining the QoS parameter information of the current service of the user to the user QoS data storage network element when it is determined that the service carrying the QoS needs to be triggered;

The processing module 82 is configured to, after receiving the QoS parameter information returned by the user QoS data storage network element, select a transmission link for the user according to the QoS parameter information, encapsulate the QoS parameter information in a message, and encapsulate the QoS parameter information in a message. The message is sent to the policy enforcement monitoring point.

In a preferred embodiment, the determining module 81, determining that the QoS service needs to be triggered may include: receiving the message sent by the user, analyzing the user equipment type and the service initiated by the current user, such as judging that the QoS parameter needs to be transmitted. service or user type, and there is no valid current user QoS data, it is determined that the QoS service needs to be triggered.

The apparatus may be an access network element, a terminal, an edge gateway or a server.

FIG. 9 is a schematic diagram of a PEMP according to an embodiment of the present invention. As shown in FIG. 9 , the PEMP in this embodiment includes:

The obtaining module 91 is configured to obtain the QoS parameter information in the message after receiving the message;

The processing module 92 is configured to delete the QoS parameter information in the message, or forward the message to the policy execution monitoring point of the last hop, and the policy execution monitoring point of the last hop deletes the message QoS parameter information in .

In a preferred embodiment, the processing module 92 is further configured to notify the network management network element to perform network optimization when it is determined according to the QoS parameter information that the current device and link do not meet the service QoS requirements.

FIG. 10 is a schematic diagram of a network element according to an embodiment of the present invention. As shown in FIG. 10 , the network element in this embodiment stores user QoS data, including:

A receiving module 101, configured to receive a request message for acquiring the QoS parameter information of the current service of the user;

The sending module 102 is configured to send the QoS parameter information of the current service of the user to the device sending the request message.

Those skilled in the art can understand that all or part of the steps in the above method can be completed by instructing relevant hardware through a program, and the program can be stored in a computer-readable storage medium, such as a read-only memory, a magnetic disk or an optical disk. Optionally, all or part of the steps in the above embodiments may also be implemented using one or more integrated circuits. Correspondingly, each module/unit in the above embodiments may be implemented in the form of hardware, or may be implemented in the form of software function modules. The present invention is not limited to any particular form of combination of hardware and software.

The above are only the preferred embodiments of the present invention. Of course, the present invention can also have other various embodiments. Without departing from the spirit and essence of the present invention, those skilled in the art can make various Corresponding changes and deformations, but these corresponding changes and deformations should belong to the protection scope of the appended claims of the present invention.

Claims (8)

1. A method of quality of service, QoS, parameter management, comprising:

when determining that a service carrying QoS needs to be triggered, sending a request message for acquiring QoS parameter information of a current service of a user to a user QoS data storage network element;

and after receiving QoS parameter information returned by the user QoS data storage network element, selecting a transmission link for a user according to the QoS parameter information, encapsulating the QoS parameter information in a message, transmitting the message to a policy execution monitoring point, so that the policy execution monitoring point informs a network management network element to perform network optimization when determining that the current equipment and the link do not meet the service QoS requirement according to the QoS parameter information in the process of transmitting the message.

2. The method of claim 1, wherein the determining that QoS traffic is to be triggered is performed according to the following conditions:

and receiving the message sent by the user, and analyzing the type of the user equipment and the service initiated by the current user, if the QoS parameter service needs to be transmitted, and no effective QoS data of the current user exists.

3. The method of claim 1 or 2, wherein:

the request message includes one or more of: user identity identification, terminal type parameter and initiated service type parameter;

the QoS parameter information comprises one or more of: message delay, transmission jitter, maximum guaranteed bandwidth, priority, link level, service chain identification.

4. An apparatus for quality of service (QoS) parameter management, comprising:

the determining module is used for sending a request message for acquiring QoS parameter information of the current service of the user to a user QoS data storage network element when the QoS-carrying service is determined to be triggered;

and the processing module is used for selecting a transmission link for a user according to the QoS parameter information after receiving the QoS parameter information returned by the user QoS data storage network element, packaging the QoS parameter information in a message, transmitting the message to the strategy execution monitoring point, so that the strategy execution monitoring point informs a network management network element to perform network optimization when determining that the current equipment and the link do not meet the service QoS requirement according to the QoS parameter information in the process of transmitting the message.

5. The apparatus of claim 4, wherein:

the determining module determines that the QoS carrying service is required to be triggered according to the following conditions: and receiving the message sent by the user, and analyzing the type of the user equipment and the service initiated by the current user, if the QoS parameter service needs to be transmitted, and no effective QoS data of the current user exists.

6. The apparatus of claim 4 or 5, wherein:

the device is an access network element, a terminal, a border gateway or a server.

7. A method of quality of service, QoS, parameter management, comprising:

after receiving a message, a strategy execution monitoring point acquires QoS parameter information in the message;

deleting the QoS parameter information in the message, or forwarding the message to a last-hop policy execution monitoring point, and deleting the QoS parameter information in the message by the last-hop policy execution monitoring point;

and further comprising:

and when determining that the current equipment and the link do not meet the service QoS requirement according to the QoS parameter information, informing a network management network element to carry out network optimization.

8. A policy enforcement monitoring point, comprising:

the acquisition module is used for acquiring QoS parameter information in the message after receiving the message;

the processing module is used for deleting the QoS parameter information in the message, or forwarding the message to a last-hop policy execution monitoring point, and deleting the QoS parameter information in the message by the last-hop policy execution monitoring point; and the network management unit is also used for informing a network management network element to carry out network optimization when the current equipment and the link do not meet the service QoS requirement according to the QoS parameter information.

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