CN106817730B - QoS control method based on user plane in LTE system - Google Patents
QoS control method based on user plane in LTE system Download PDFInfo
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- CN106817730B CN106817730B CN201710060359.1A CN201710060359A CN106817730B CN 106817730 B CN106817730 B CN 106817730B CN 201710060359 A CN201710060359 A CN 201710060359A CN 106817730 B CN106817730 B CN 106817730B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
- H04W28/24—Negotiating SLA [Service Level Agreement]; Negotiating QoS [Quality of Service]
Abstract
the invention relates to a QoS control method based on a user plane in an LTE system, which comprises the following steps: the terminal equipment organizes a user plane message according to the service requirement and sends the user plane message to the gateway equipment; the gateway device receives the user plane message, analyzes the message content of the user plane message, checks QCl index value, if it carries QoS requirement, the gateway device detects whether the user level meets the QoS parameter, if it meets, the gateway device organizes standard special bearing creating signaling message according to the analyzed QoS parameter, and sends it to the core network device, and completes the special bearing creation. The invention uses the user plane information to bear the QoS requirement, and is suitable for all mobile communication systems supporting the QoS.
Description
Technical Field
the invention relates to the technical field of mobile communication, in particular to a QoS control method based on a user plane in an LTE system.
Background
the LTE (Long Term Evolution) network proposes the idea of "always on-line" for reducing the delay of establishing a service, i.e. by creating a default bearer for a terminal user. However, the default bearer is a Non-Guaranteed Bit Rate bearer (Non-GBR, Non-Guaranteed Bit Rate), in order to improve user experience and meet special quality requirements of user services, a concept of a dedicated bearer is introduced in the LTE system, and the LTE system implements qos (quality of service) by establishing the dedicated bearer. Many QoS (Quality of Service) guarantees have been proposed.
Chinese patent application No. 201380058549.X discloses a method for logical channel prioritization by a User Equipment (UE) within a long LTE wireless communication network, the UE may have multiple logical channels, each logical channel being associated with one or more applications. The UE may identify whether QoS responsibility or control data exists for the logical channel, and if so, the UE allocates at least a portion of the uplink resources to the logical channel.
Chinese patent application No. 201380051496.9 discloses some embodiments for signaling quality of service (QoS) requirements and User Equipment (UE) power preferences in an LTE-a network. It identifies the preference of QoS configuration in order to handle the traffic provided to the UE by the eNB. The QoS for traffic provided by the eNB to the UE is managed by the eNB based on the identified preferences for QoS configuration for handling traffic provided to the UE.
Chinese patent with application number 201210504311.2 discloses a TD-LTE femtocell admission control method, which authenticates a user according to the current working mode of a femtocell and determines the access threshold of the user; through a dynamic protection channel (GC) wireless access strategy based on service diversification, on one hand, the priority of a switching call is ensured, on the other hand, the problem of resource allocation among different types of services is solved, and the admission control supporting the diversified services is realized.
The method mainly describes how to ensure the realization of the QoS in the LTE system from two aspects of terminal equipment and wireless access technology, but does not consider the control of the QoS in the LTE system, namely the control of the creation of the special bearer, for example, in some special application scenes, the standard flow of establishing the special bearer cannot be completed.
Disclosure of Invention
In view of the above analysis, the present invention aims to provide a QoS control method based on a user plane in an LTE system to solve the problem that the existing method does not consider control for creation of a dedicated bearer.
The purpose of the invention is mainly realized by the following technical scheme:
A QoS control method based on user plane in LTE system includes the following steps:
Step S1, the terminal device organizes the user plane message according to the service requirement and sends the user plane message to the gateway device;
Step S2, the gateway device receives the user plane message, analyzes the message content of the user plane message, checks the QCI index value, if the QoS requirement is carried in the QCI index value, then step S3 is executed; if the QoS requirement is not carried, forwarding the user plane message to a destination terminal or a destination server;
step S3, the gateway device detects whether the user level meets the required QoS parameter, if yes, the step S4 is executed; if not, informing the terminal equipment that the user level is not in accordance with the QoS requirement;
step S4, the gateway device organizes the signaling message of the standard dedicated bearer creation according to the QoS parameter obtained by the analysis, and sends the signaling message to the core network device, thereby completing the dedicated bearer establishment.
the user plane message in step S1 includes a user plane message including QoS requirements and a general user plane message not including QoS requirements.
In step S1, the user plane message is in a custom message format, and includes a packet message type field, a payload length field, a signaling type field, a QCI field, a reserved field, and a check field.
In step S2, the gateway device encrypts the received normal user plane message without carrying the QoS requirement to ensure the secure transmission of the data, or directly forwards the message to the destination terminal or the destination server of the normal user plane message.
in step S3, the gateway device discards the user plane message whose user level does not satisfy the required QoS parameter, and sends the processing result to the terminal device.
the operator establishes a user level index and stores the user level index in a database of the gateway device, and the gateway device acquires the level of the user from the database after receiving a user plane message containing QoS requirements each time.
Each user level corresponds to a level in the OCI in the highest QoS parameter that it can satisfy.
And the operator sets the QoS parameters for different service types according to the requirements.
The invention has the following beneficial effects:
the QoS control method based on the user plane in the LTE system enables the signaling message to be borne on the user plane message, and the signaling attack can be prevented by hiding the signaling message; the terminal equipment can control the establishment of the special bearer according to the service requirement of the terminal equipment; for some small networks, simplified LTE networks such as subtractive PCRF, AF, etc. network elements can be used without affecting QoS control; the user plane information is used for bearing the QoS requirement, not only the QoS control of a standard LTE system is supported, but also some QoS control which can not use a standard signaling flow to carry out special bearing creation is supported, and the method is suitable for all mobile communication systems supporting the QoS.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
drawings
The drawings are only for purposes of illustrating particular embodiments and are not to be construed as limiting the invention, wherein like reference numerals are used to designate like parts throughout.
Fig. 1 is an interaction diagram of a terminal device and a gateway device;
FIG. 2 is a flow chart of a QoS control method based on a user plane in an LTE system;
Fig. 3 is a schematic format diagram of a user plane message.
Detailed Description
the preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which form a part hereof, and which together with the embodiments of the invention serve to explain the principles of the invention.
according to a specific embodiment of the present invention, a QoS control method based on a user plane in an LTE system is disclosed, as shown in fig. 2, including the following steps:
Step S1, as shown in fig. 1, the terminal device organizes the user plane message according to the service requirement, and sends it to the core network device through the air interface, and sends it to the gateway device through the core network;
Specifically, the terminal device organizes a user plane message containing the QoS requirement and a common user plane message not containing the QoS requirement according to the service requirement, and sends the user plane message and the common user plane message to the core network device through an air interface and the common user plane message to the gateway device through the core network;
The signaling message is carried on the user plane message, so that the signaling attack can be prevented;
the user plane information is used for bearing the QoS requirement, not only the QoS control of a standard LTE system is supported, but also some QoS control which can not use a standard signaling flow to carry out special bearing creation is supported, and the method is suitable for all mobile communication systems supporting the QoS;
The user plane message is in a self-defined message format and comprises a message type field, a payload length field, a signaling type field, a QCI field, a reserved field and a check field. The user plane message is four byte aligned and is formatted as shown in fig. 3.
The qci (QoS Class identifier) is a QoS Class and is an index value that comprehensively reflects the service quality of the service. In practical applications, each network element may weigh scheduling weights, manage transmission alignment, perform admission control and bottom layer configuration, and the like with reference to the QCI.
Step S2, the gateway device receives the user plane message sent by the terminal device through the core network, analyzes the message content of the user plane message, checks the QCI index value, if the QCI index value carries the QoS requirement, then executes step S3; if the QoS requirement is not carried, the user plane message is forwarded to a destination terminal or a destination server of the common user plane message;
specifically, if the user plane message sent by the terminal device and received by the gateway device through the core network does not carry the QoS requirement, the user plane message is a normal user plane message, and the normal user plane message is encrypted to ensure the safe transmission of data, or directly forwarded to a destination terminal or a destination server of the normal user plane message;
Step S3, the gateway device analyzes the QoS requirement in the user plane message, detects whether the user level meets the required QoS parameter, if yes, the step S4 is executed; if not, the terminal equipment is informed that the user level does not accord with the QoS requirement.
specifically, if it is detected that the user level does not satisfy the QoS parameter required by the gateway device, the user plane message is discarded, and the media plane message carries a processing result and is sent to the terminal device, so as to inform the terminal device that the user level does not conform to the QoS request;
The gateway device detects whether the user level meets the QoS parameter required by the user level, if so, the operator establishes a user level index and stores the user level index in a database of the gateway device, and the gateway device can go to the database to obtain the user level after receiving a user plane message containing the QoS requirement each time;
specifically, dividing terminal equipment users into a plurality of levels according to business requirements, carrying out management and level division and matching by a unified management center, establishing user level indexes and storing the user level indexes in a database of gateway equipment;
Each user class corresponds to a class of OCIs in the highest QoS parameters that it can satisfy, for example, the QCI in QoS that the highest class of users can require is 1-8, the QCI in QoS that the lower class of users can require is 4-8, and QCI 9 is generally used for a default bearer for processing normal user plane messages.
specifically, the operator sets QoS parameters for different service types as needed.
Step S4, for the user plane message whose user level meets the QoS requirement of the gateway device, the gateway device organizes the signaling message of the standard creation dedicated bearer according to the QoS parameter obtained by the analysis, referring to the standard signaling message in the standard LTE, and sends the signaling message to the core network device, thereby completing the establishment of the dedicated bearer.
In summary, the embodiment of the present invention provides a QoS control method based on a user plane in an LTE system, which has the following advantages:
1. the signaling message is carried on the user plane message, and the signaling attack can be prevented by hiding the signaling message;
2. The terminal equipment can control the establishment of the special bearer according to the service requirement of the terminal equipment;
3. For some small networks, simplified LTE networks such as subtractive PCRF, AF, etc. network elements can be used without affecting QoS control;
4. the user plane information is used for bearing the QoS requirement, not only the QoS control of a standard LTE system is supported, but also some QoS control which can not use a standard signaling flow to carry out special bearing creation is supported, and the method is suitable for all mobile communication systems supporting the QoS.
Those skilled in the art will appreciate that all or part of the flow of the method implementing the above embodiments may be implemented by a computer program, which is stored in a computer readable storage medium, to instruct related hardware. The computer readable storage medium is a magnetic disk, an optical disk, a read-only memory or a random access memory.
the above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention.
Claims (6)
1. a QoS control method based on a user plane in an LTE system is characterized by comprising the following steps:
Step S1, the terminal device organizes the user plane message according to the service requirement, sends the user plane message to the core network device through the air interface, and sends the user plane message to the gateway device through the core network; the user plane messages comprise user plane messages containing QoS requirements and ordinary user plane messages not containing QoS requirements; the user plane message is in a self-defined message format and comprises a message type field, a payload length field, a signaling type field, a QCI field, a reserved field and a check field;
step S2, the gateway device receives the user plane message, analyzes the message content of the user plane message, checks the QCI index value, if the QoS requirement is carried in the QCI index value, then step S3 is executed; if the QoS requirement is not carried, forwarding the user plane message to a destination terminal or a destination server;
Step S3, the gateway device detects whether the user level meets the required QoS parameter, if yes, the step S4 is executed; if not, informing the terminal equipment that the user level is not in accordance with the QoS requirement;
step S4, the gateway device organizes the signaling message of the standard dedicated bearer creation according to the QoS parameter obtained by the analysis, and sends the signaling message to the core network device, thereby completing the dedicated bearer establishment.
2. The method according to claim 1, wherein in step S2, the gateway device encrypts the received normal user plane message without carrying QoS requirement to ensure secure transmission of data, or directly forwards the message to a destination terminal or a destination server of the normal user plane message.
3. The method according to claim 1, wherein in step S3, the gateway device discards the user plane message whose user level does not satisfy its required QoS parameter, and sends the processing result to the terminal device.
4. A method according to claim 3, characterized in that the operator establishes a user level index and stores it in a database of the gateway device, from which the gateway device retrieves the user's level each time it receives a user plane message with QoS requirements.
5. The method of claim 4, wherein each user class corresponds to a class in the OCI of the highest QoS parameter that it can satisfy.
6. The method of claim 5, wherein the QoS parameters are set by the operator for different traffic types according to the requirement.
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| CN101741768A (en) * | 2008-11-14 | 2010-06-16 | 大唐移动通信设备有限公司 | Processing method, system and device of PCO information |
| CN103621023A (en) * | 2012-06-29 | 2014-03-05 | 华为技术有限公司 | QoS processing method, application server, QoS control network element and mobile network |
| CN105430691A (en) * | 2015-11-02 | 2016-03-23 | 中国联合网络通信集团有限公司 | QCI determination method and QCI determination device |
| CN105472748A (en) * | 2015-11-11 | 2016-04-06 | 广东欧珀移动通信有限公司 | Wireless network resource distribution method and device of mobile terminal |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101741768A (en) * | 2008-11-14 | 2010-06-16 | 大唐移动通信设备有限公司 | Processing method, system and device of PCO information |
| CN103621023A (en) * | 2012-06-29 | 2014-03-05 | 华为技术有限公司 | QoS processing method, application server, QoS control network element and mobile network |
| CN105430691A (en) * | 2015-11-02 | 2016-03-23 | 中国联合网络通信集团有限公司 | QCI determination method and QCI determination device |
| CN105472748A (en) * | 2015-11-11 | 2016-04-06 | 广东欧珀移动通信有限公司 | Wireless network resource distribution method and device of mobile terminal |
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