KR20170014796A - Method and apparatus for quality of service - Google Patents

Abstract

The present invention relates to an apparatus and method for managing a service quality. The disclosed apparatus for managing a service quality includes a service profile acquisition unit configured to acquire a service profile including a quality index requirement value for each service between a base station and a core network, a network identification unit configured to set a quality index budget by identifying a network state corresponding to the quality index requirement value for each network section between the base station and the core network, and a service quality index determination unit configured to determine a quality index target value for each service based on the quality index budget and a predetermined quality index range for each network section and transmit the determined quality index target value to the base station or the core network. The present invention may manage a service quality for each network section at an appreciate level depending on a quality index required for each communication service.

Description

[0001] METHOD AND APPARATUS FOR QUALITY OF SERVICE [0002]

The present invention relates to a service quality management apparatus and method, and more particularly, to a service quality management apparatus and method for managing service quality at an appropriate level for various communication services.

As is known, current mobile communication technology is mainly composed of an LTE (Long Term Evolution) mobile communication system classified as a 4th generation mobile communication system, and a 5th generation mobile communication system using ultra high frequency This is under development.

The LTE mobile communication system and the next generation mobile communication system provide various data services through a packet network. In recent years, subscribers of a mobile communication service have been using web page loading, channel zapping, voice calling, video calling, game, Touch / response, smart metering, and so on.

On the other hand, a base station that guarantees mobility of a mobile communication terminal through a wireless network in order to provide the above-described data service is limited in the radio resources that can be operated and provided. Likewise, network nodes located in the core network are also limited resources to operate for communication services.

Therefore, the base station and the network nodes adopt a method of appropriately allocating and distributing resources when a mobile communication terminal causes a data call for use of the data service.

The radio resource allocation scheme by the base station according to the related art allocates more radio resources to the mobile communication terminals in the cell boundary area even when the capacity of the base station cell is increased or the capacity thereof decreases, In the direction of ensuring the operation.

According to the related art, radio resources are allocated on the basis of making all mobile communication terminals in a cell have the same delay irrespective of which data service is used.

Therefore, even if the radio resource requirements required for service quality and the like vary according to services provided to the mobile communication terminal, the conventional radio resource allocation method can not take this into consideration.

Korean Patent Publication No. 10-2013-0135572, published on December 11, 2013.

According to an embodiment of the present invention, there is provided a service quality management apparatus and method for managing service quality at an appropriate level for each network section according to a quality index required for various communication services.

The problems to be solved by the present invention are not limited to those mentioned above, and another problem to be solved can be clearly understood by those skilled in the art from the following description.

A service quality management apparatus according to an aspect of the present invention includes a service profile acquisition unit that obtains a service profile including a quality indicator request value for each service between a base station and a core network, A network identification unit configured to identify a network status corresponding to a quality indicator request value and set a quality indicator budget; and a network indicator configured to determine a quality indicator target value for each service according to the quality indicator budget and a predetermined quality indicator range for each network section, Or a service quality indicator determining unit for transmitting the service quality indicator to the core network.

According to another aspect of the present invention, there is provided a method for managing quality of service, comprising: obtaining a service profile including a quality indicator request value for each service between a base station and a core network; Determining a quality index target value for each service interval according to the quality indicator budget and a predetermined quality indicator range for each network section, and transmitting the quality indicator target value to the base station or the core network And transmitting the data.

According to the embodiment of the present invention, service quality can be managed at an appropriate level for each network section according to a quality index required for various communication services.

For example, it is possible to provide a data service in which delay is differentiated according to a service type by adaptively allocating and operating resources in accordance with delay requirements required according to a service type provided to a mobile communication terminal.

Therefore, it is possible to efficiently operate the limited resources according to the type of the data service, and to provide an appropriate level or the best service quality.

1 is a configuration diagram of a mobile communication service system including a service quality management apparatus according to an embodiment of the present invention.
2 is a detailed block diagram of a service quality management apparatus according to an embodiment of the present invention.
3 is a flowchart illustrating a service quality management method according to an embodiment of the present invention.
4 is a flowchart illustrating a service quality management method according to another embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and the manner of achieving them, will be apparent from and elucidated with reference to the embodiments described hereinafter in conjunction with the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. To fully disclose the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims.

In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. The following terms are defined in consideration of the functions in the embodiments of the present invention, which may vary depending on the intention of the user, the intention or the custom of the operator. Therefore, the definition should be based on the contents throughout this specification.

1 is a configuration diagram of a mobile communication service system including a service quality management apparatus according to an embodiment of the present invention.

The mobile communication service system according to the embodiment includes a mobile communication terminal 10, a base station 20, an edge cloud 30, a core network 40, an application server 50, and the like. The edge cloud 30 may include a service quality management apparatus 100 according to an embodiment of the present invention. Various types of mobile communication systems such as LTE, LTE-A, and IMT-2020 may be located in the core network 40. For example, the SGW 41, the PGW 43, the MME 45, and the like may be located in the core network 40.

The mobile communication terminal 10 can be implemented by various wireless communication devices capable of communication such as a smart phone, a tablet computer, a PDA (Personal Digital Assistant), and the like.

The core network 40 is a network for providing various data services based on a packet network or the like. The SGW (Serving Gateway) 41, the PGW (Packet Data Network Gateway) 43, and the MME (Mobility Management Entity) 45 of the core network 40 collaborate with the application server 50, It can provide data services such as jumping, voice call, video call, game, touch / response, smart metering.

2 is a detailed block diagram of a service quality management apparatus according to an embodiment of the present invention.

As shown, the service quality management apparatus 100 according to the embodiment includes a service profile obtaining unit 110, a network detecting unit 120, a service quality indicator determining unit 130, and the like. The service profile acquisition unit 110 includes a service profile exchange unit 111, a service profile storage unit 113, and the like. The network grasp unit 120 includes a quality index grasp unit 121, a quality index budget setting unit 123, and the like.

The service profile obtaining unit 110 obtains a service profile including a quality indicator request value such as service-specific request delay information, service-specific data transmission rate information, occupation time information per service, etc. between the base station and the core network.

The service profile exchange unit 111 of the service profile acquisition unit 110 includes the mobile communication terminal 10, the base station 20, the SGW 41 as the network node of the core network 40, the PGW 43, And exchanges a message including the service profile with at least one of the MME 45 or the application server 50. [

The service profile storage unit 113 of the service profile acquisition unit 110 manages the service profile received from the service profile exchange unit 110 by storing, updating or deleting the service profile.

The network grasp unit 120 grasps the network status corresponding to the quality indicator request value included in the service profile for each network section between the base station and the core network and sets a quality indicator budget.

For this purpose, the quality indicator determination unit 121 of the network determination unit 120 may measure a delay measurement value, a data transmission rate, or an occupation time for each network interval between the base station and the core network.

The quality indicator budget setting unit 123 of the network determination unit 120 calculates the network delay budget determined by the delay measurement value measured for each network section between the base station and the core network and the request delay information per service of the service profile, Set the indicator budget. Alternatively, the quality indicator budget setting unit 123 may use the data transmission rate or occupancy time measured for each network section between the base station and the core network, or use the quality indicator budget or the occupancy time information based on the data transmission rate information or occupancy time information included in the service profile .

For example, the quality indicator determination unit 121 measures network delay and processing delay for each up / down section and up / down link. Traffic sniffing can be used to measure network latency, and processing latency can be read from the service profile or measured through traffic sniffing. The delay budget calculation unit 123 calculates the network delay budget based on the delay measurement value measured for each network section, the request delay information per service, and the predetermined margin.

The service quality indicator determining unit 130 determines a target value of a quality indicator for each service according to a quality indicator budget and a predetermined quality indicator range for each network section, and transmits the quality indicator target value to the base station or the core network.

For example, the service quality indicator determiner 130 transmits a delay target value for each service determined according to the delay measurement value, the network delay budget, and the service range for each network section to the base station or the core network. The service quality indicator determiner 130 may determine and transmit a delay target value for each service by up / down sections and up / down links.

3 is a flowchart illustrating a service quality management method according to an embodiment of the present invention.

As shown in the figure, a service quality management method according to an exemplary embodiment of the present invention includes a service profile including a quality indicator request value such as demand delay information for each service, data rate information for each service, occupancy time information for each service, (S210).

The method further includes a step S220 of grasping the network status corresponding to the quality indicator request value included in the service profile for each network interval between the base station and the core network.

The method further includes a step (S230) of setting a quality indicator budget based on the quality indicator requirement value corresponding to the network status determined for each network section between the base station and the core network.

Next, the method further includes a step (S240) of determining a quality indicator target value for each service according to a quality indicator budget and a predetermined quality indicator range for each network section and transmitting the quality indicator target value to the base station or the core network.

FIG. 4 is a flowchart illustrating a service quality management method according to another embodiment of the present invention, in which delay is used among service quality indicators.

As described above, the service quality management method includes a step S310 of obtaining a service profile including request-by-service delay information between a base station and a core network. For example, a service profile can be acquired by exchanging messages including a service profile with a mobile communication terminal, a base station, a network node of a core network, or an application server.

The method further includes measuring a delay for each network section between the base station and the core network (S320). For example, network delay and processing delay can be measured for each up / down section and up / down link. Traffic sniffing can measure network latency, read processing latency from a service profile, or measure processing latency through traffic sniffing.

Next, the method further includes calculating (S330) a network delay budget determined by the delay measurement value and the service-specific request delay information.

Next, a delay target value for each service is determined according to the delay measurement value, the network delay budget, and the service range for each network interval, and the delay target value is transmitted to the base station or the core network (S340). For example, the delay target value for each service can be determined for each up / down section and up / down link and transmitted.

Hereinafter, a service quality management method by the service quality management apparatus according to an embodiment of the present invention will be described in more detail with reference to FIG. 1 to FIG.

First, the service profile acquisition unit 110 obtains a service profile including a service quality metric request value between the base station 20 and the core network 40 (S210).

The service profile exchange unit 111 of the service profile acquisition unit 110 includes the mobile communication terminal 10, the base station 20, the SGW 41 as the network node of the core network 40, the PGW 43, And exchanges messages including the service profile with the MME 45 and the application server 50 and the like.

For example, the service profile exchange unit 111 acquires a service profile by transmitting and receiving a message for delivering a service profile through a predefined API (Application Programming Interface), or acquires a service profile through a preliminary field of a message transmitted / It can transmit and receive.

Then, the service profile storage unit 113 stores, updates, or deletes the service profile received from the service profile exchange unit 110.

For example, the service profile stored by the service profile storage unit 113 may include all or some of the profile index, the routing information, the request delay information, the data rate, the occupation time, have. The routing information may include a URL, a destination IP, a port, etc., and the request delay information may be included in the QoS field with processing delay information.

Next, the network grasp unit 120 grasps the network status corresponding to the quality indicator request value of the service profile between the base station 20 and the core network 40 at step S220.

For example, in a case where the request delay information is included in the service profile stored by the service profile storage unit 113, the quality indicator determination unit 121 measures network delay and processing delay for each up / down section and up / down link can do. Alternatively, when the service profile includes the data transmission rate or the occupation time, the quality indicator determination unit 121 may measure the data transmission rate or occupancy time for each up / down section and up / down link.

The quality indicator budget setting unit 123 of the network determination unit 120 determines whether or not the quality indicator request value corresponding to the network status detected in step S220 for each network interval between the base station 20 and the core network 40 A quality indicator budget is set (S230).

For example, the quality index budget setting unit 123 sets delay metrics measured by the quality index perception unit 121 for each network section, request delay information for each service read from the service profile of the service profile storage unit 113, The network delay budget can be calculated. Alternatively, the quality indicator budget setting unit 123 may calculate a data transmission rate budget based on a data transmission rate measured for each network section, a data transmission rate for each service read from the service profile, and a predetermined margin. Alternatively, the quality indicator budget setting unit 123 may calculate the occupation time budget based on the occupation time measured for each network section, the occupation time for each service read from the service profile, and the predetermined margin.

Next, the service quality indicator determining unit 130 determines a target quality indicator value for each service according to the quality indicator budget and the predetermined quality indicator range set in step S230 for each network section and transmits the quality indicator target value to the base station 20 or the core network 40 (S240).

For example, the service quality indicator determiner 130 determines a delay target value for each service according to a delay measurement value, a network delay budget, and a service range for each network section for each up / down section and up / down link, And transmits the target value to the base station 20 or the core network 40. Alternatively, the service quality indicator determination unit 130 determines a data transmission rate target value for each service according to the data transmission rate measurement value, the data transmission rate budget, and the service range for each network section for each up / down section and up / down link And transmits the determined data transmission rate target value for each service to the base station 20 or the core network 40. Alternatively, the service quality indicator determiner 130 determines the occupancy time target value for each service according to occupancy time measurement value, occupancy time budget, and service range for each network section for each up / down section and up / down link, And may transmit the star occupancy time target value to the base station 20 or the core network 40.

Meanwhile, the base station 20 receives the service quality target value for each service from the service quality management apparatus 100, and operates the radio resource according to the service quality target value for each service. For example, a delay component such as a transmission mode per radio interface protocol layer, a number of retransmissions per radio interface protocol layer, a scheduling priority, a number of Hybrid Automatic Repeat Requests, or a hybrid automatic retransmission block error rate threshold Can be adjusted. Alternatively, scheduling of radio resources or retransmission processing may be performed to satisfy the data transmission rate target value or the occupation time target value.

In addition, the core network 40 receives the service quality target value for each service from the service quality management apparatus 100, and operates the network node or the server resource according to the service quality target value for each service. For example, the delay can be adjusted by changing the routing path.

Hereinafter, with reference to FIG. 1, FIG. 2, and FIG. 4, a method for managing service quality by using a delay as a quality index according to an embodiment of the present invention will be described in detail.

The service profile exchange unit 111 of the service profile acquisition unit 110 obtains a service profile including request delay information per service between the base station 20 and the core network 40, Updates, or deletes the service profile received from the service profile exchange unit 110 (S310).

For example, the service profile stored by the service profile storage unit 113 may include the profile index, the routing information, and the request delay information, and the request delay information may be included in the QoS field together with the processing delay information.

Next, the quality indicator determination unit 121 of the network determination unit 120 measures delay between the base station 20 and the core network 40 for each up / down link and up / down link of the network (S320) The quality indicator budget setting unit 123 calculates a network delay budget determined by the delay measurement value and the service-specific request delay information (S330).

For example, the quality indicator determination unit 121 determines whether the traffic sniffing is performed on the upper downlink section (section a), the lower downlink section (section b), the lower uplink section (section c), and the upper uplink section The network delay can be measured. Also, the quality indicator determination unit 121 can measure the processing delay through the traffic sniffing for the server interval (e interval) and the terminal interval (f interval). Here, the processing delay of the server section (e section) and the terminal section (section f) may be read from the QoS field of the service profile stored in the service profile storage section 113.

The quality indicator budget setting unit 123 is configured to calculate a delay indicator for each network section based on the delay measurement value measured by the quality indicator determination unit 121 and the service delay requirement information for each service read from the service profile of the service profile storage unit 113, The network delay budget is calculated.

For example, if the delay measurement value of the a section is 10 ms, the delay measurement value of the b section is 20 ms, the delay measurement value of the e section and the f section is 20 ms, the request delay per service is 50 ms, and the margin is 10 ms, The budget can be calculated as -10 ms. If the delay measurement value of the c section is 30 ms, the delay measurement value of the d section is 10 ms, the delay measurement value of the e section and the f section is 20 ms, the request delay per service is 50 ms, and the margin is 10 ms, The budget can be calculated as -20ms.

Next, the service quality indicator determiner 130 determines delay target values for each service according to the delay measurement value, the network delay budget, and the service range for each network section for each up / down section and up / down link, And transmits the delay target value to the base station 20 or the core network 40 (S340).

For example, if the service range of the interval a is 10 ms to Nms, the delay target value for each service is determined to be 10 ms. If the service range of the interval b is 1 ms to 20 ms, the delay target value for each service is determined to be 10 ms. If the service range is Fixed, the delay target value for each service can be determined as 20 ms. If the service range of the section c is 10 ms to M ms, the delay target value for each service is determined to be 15 ms. If the service range of the section d is 5 ms to 20 ms, the delay target value for each service is determined to be 5 ms. If the service range is Fixed, the delay target value for each service can be determined as 20 ms.

As described above, according to the embodiment of the present invention, service quality can be managed at an appropriate level for each network section according to a quality index required for various communication services.

For example, it is possible to provide a data service in which delay is differentiated according to a service type by adaptively allocating and operating resources in accordance with delay requirements required according to a service type provided to a mobile communication terminal.

Therefore, it is possible to efficiently operate the limited resources according to the type of the data service, and to provide an appropriate level or the best QoS.

Each block of the block diagrams attached hereto and combinations of steps of the flowchart diagrams may be performed by computer program instructions. These computer program instructions may be loaded into a processor of a general purpose computer, special purpose computer, or other programmable data processing apparatus so that the instructions, which may be executed by a processor of a computer or other programmable data processing apparatus, And means for performing the functions described in each step are created. These computer program instructions may also be stored in a computer usable or computer readable memory capable of directing a computer or other programmable data processing apparatus to implement the functionality in a particular manner so that the computer usable or computer readable memory It is also possible for the instructions stored in the block diagram to produce a manufacturing item containing instruction means for performing the functions described in each block or flowchart of the block diagram. Computer program instructions may also be stored on a computer or other programmable data processing equipment so that a series of operating steps may be performed on a computer or other programmable data processing equipment to create a computer- It is also possible that the instructions that perform the processing equipment provide the steps for executing the functions described in each block of the block diagram and at each step of the flowchart.

Also, each block or each step may represent a module, segment, or portion of code that includes one or more executable instructions for executing the specified logical function (s). It should also be noted that in some alternative embodiments, the functions mentioned in the blocks or steps may occur out of order. For example, two blocks or steps shown in succession may in fact be performed substantially concurrently, or the blocks or steps may sometimes be performed in reverse order according to the corresponding function.

The foregoing description is merely illustrative of the technical idea of the present invention, and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are intended to illustrate rather than limit the scope of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

According to the embodiment of the present invention, resources can be allocated and operated adaptively according to the service quality required according to the type of service provided to the mobile communication terminal.

The present invention can be applied to a mobile communication technology field for operating various mobile communication systems including LTE, LTE-A, and IMT-2020.

10: mobile communication terminal 20: base station
30: Edge Cloud 40: Core Network
50: Application server 100: Service quality management device
110: service profile acquisition unit 111: service profile exchange unit
113: Service profile storage unit 120: Network identification unit
121: Quality index determination unit 123: Quality index budget setting unit
130: service quality index determination unit

Claims (16)

A service profile obtaining unit for obtaining a service profile including a quality indicator request value for each service between the base station and the core network;
A network grasping unit for grasping a network state corresponding to the quality indicator request value for each network section between the base station and the core network and setting a quality indicator budget;
And a service quality indicator determining unit for determining a quality indicator target value for each service according to the quality indicator budget and a predetermined quality indicator range for each network section and transmitting the quality indicator target value to the base station or the core network. The method according to claim 1,
The service profile includes request delay information for each service,
Wherein the network deter- mination unit sets the quality indicator budget by calculating a network delay budget determined by the delay measurement value measured for each network section between the base station and the core network and the service-
Wherein the service quality indicator determiner determines a delay target value for each service according to the delay measurement value, the network delay budget, and a predetermined service range for each network section as the service target quality indicator target value. Device. 3. The method of claim 2,
Wherein the service profile obtaining unit exchanges a message including the service profile with at least one of the mobile communication terminal, the base station, the network node of the core network, or the application server. 3. The method of claim 2,
Wherein the network determination unit measures a network delay and a processing delay for each up / down section and up / down link. 5. The method of claim 4,
Wherein the network determination unit measures the network delay through traffic sniffing. 5. The method of claim 4,
Wherein the network identification unit reads the processing delay from the service profile or measures the processing delay through traffic sniffing. 3. The method of claim 2,
Wherein the quality of service indicator determination unit determines and transmits the delay target value for each service by up / down sections and up / down links. The method according to claim 1,
The service profile includes data transmission rate information or occupancy time information for each service,
Wherein the network identification unit uses the data transmission rate or occupancy time measured for each network section between the base station and the core network or sets the quality indicator budget based on the data transmission rate information or occupancy time information included in the service profile and,
Wherein the quality of service indicator determiner determines the quality indicator target value for each service period according to the quality indicator budget and the predetermined service range for each network section. Obtaining a service profile including a quality indicator request value for each service between a base station and a core network;
Determining a quality indicator budget by grasping a network status corresponding to the quality indicator request value for each network section between the base station and the core network;
Determining a quality indicator target value for each service according to the quality indicator budget and a predetermined quality indicator range for each network section, and transmitting the quality indicator target value to the base station or the core network. 10. The method of claim 9,
The service profile includes request delay information for each service,
Wherein the establishing step sets the quality indicator budget by calculating a network delay budget determined by the delay measurement value measured for each network section between the base station and the core network and the service delay requirement information,
Wherein the transmitting step determines the delay target value for each service according to the delay measurement value, the network delay budget, and the predetermined service range for each network section as the service target quality indicator value . 11. The method of claim 10,
Wherein the acquiring step exchanges a message including the service profile with at least one of the mobile communication terminal, the base station, the network node of the core network, or the application server. 11. The method of claim 10,
Wherein the setting step measures a network delay and a processing delay for each up / down section and up / down link. 13. The method of claim 12,
Wherein the setting step measures the network delay through traffic sniffing. 13. The method of claim 12,
Wherein the establishing step reads the processing delay from the service profile or measures the processing delay through traffic sniffing. 11. The method of claim 10,
Wherein the transmitting step determines and transmits the delay target value for each service by up / down sections and up / down links. 10. The method of claim 9,
The service profile includes data transmission rate information or occupancy time information for each service,
Wherein the establishing step comprises using the data transmission rate or occupancy time measured for each network section between the base station and the core network or using the data rate information or occupancy time information included in the service profile as the quality indicator budget Setting,
Wherein the transmitting step determines a quality indicator target value for each service according to the quality indicator budget and the predetermined service range for each network section.

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