WO2010133004A1

WO2010133004A1 - Capability negotiation method for qos, parameter transformation method and equipment for qos

Info

Publication number: WO2010133004A1
Application number: PCT/CN2009/000533
Authority: WO
Inventors: 李秉肇; 郑潇潇; 吕博雅
Original assignee: 华为技术有限公司
Priority date: 2009-05-18
Filing date: 2009-05-18
Publication date: 2010-11-25
Also published as: CN101981963A

Abstract

The embodiment of the invention provides a capability negotiation method for QoS, and a parameter transformation method and equipment for QoS. The capability negotiation method for QoS includes the steps: receiving the request information which includes the enhanced QoS capability indication, returning the acknowledge information which includes the enhanced QoS capability indication when the receiver's own supports the enhanced QoS capability. The capability negotiation method for QoS of the invention embodiment could select the more high-efficiency QoS capability to implement the QoS interaction between the different network equipments via negotiating the QoS capability between the different network equipments (eg. UE, CN, RNC).

Description

Service quality capability negotiation method, service quality parameter conversion method and device

The present invention relates to the field of communications technologies, and in particular, to a service quality capability negotiation method, a service quality parameter conversion method and apparatus.

Background technique

For the next 10 years or more, the 3rd Generation Partnership Project (3GPP)'s Universal Mobile Telecommunication System (UMTS) is highly competitive, 3GPP The organization launched the Long Term Evolution (LTE) and System Architecture Evolution (SAE) research projects.

The Evolved Packet System (EPS) has improved and enhanced the Quality of Service (QoS) mechanism for the future data services. The default bearer and aggregate resource scheduling are introduced. Such concepts have truly realized the "always on" of users, which has increased the data rate of the business and ultimately improved the user experience. At the same time, the QoS level identifier of EPS is designed for the interoperability scenario between the future UMTS Terrestrial Radio Access Network (UTRAN) and the evolved Evolved-UTRAN (E-UTRAN). Reasonable mapping between Qos Class Identifier, QCI) parameters and UMTS QoS parameters. In the long-term future, there will be a phenomenon in which the UMTS system and the SAE system coexist. In this scenario, a major direction of the subsequent evolution of the UMTS system is to integrate with the SAE framework. The UMTS core QOS parameters include the following 14:

Traffic Class, Allocation/Retention Priority (ARP), Maximum Bit Rate (MBR), Guaranteed Bit Rate (GBR), Maximum SDU (Service Packet Unit) Size SDU Size, Source Statistics Descriptor, Delivery Order, SDU Format Information, SDU Error Ratio, Residual Bit Error Ratio), the transmission of the wrong SDU (Delivery of Erromeous SDUs), Transfer Delay, Traffic Handling Priority, Signalling Indicator.

In the SAE system, bearer-level QoS parameters include QCI, ARP, GBR, MBR, and Aggregate Maximum Bit Rate (AMBR). Among them, the QCI and AMBR parameters are newly added in the EPS system, and the remaining parameters are used in the existing UMTS system. The ability of the network device to support the above-mentioned new QoS parameters is called supporting enhanced QoS capability. The ability to support legacy QoS parameters is referred to as supporting legacy QoS capabilities. UMTS Subsequent Network Evolution QoS enhancement is mainly to consider moving closer to SAE's QoS model, and gradually introduce AMBR and QCI in the UMTS model. During the introduction process, there will be a situation where new and old QoS parameters coexist in the UMTS network. If the problem of different QoS capabilities of various devices in a network cannot be handled, the network performance will be severely affected.

Summary of the invention

The embodiments of the present invention provide a service quality capability negotiation method, a service quality parameter conversion method, and a device, to solve the problem of QoS capability negotiation and QoS parameter conversion when multiple QoS capabilities coexist in an existing network device.

In one aspect, an embodiment of the present invention provides a method for negotiating a quality of service capability, the method comprising: receiving a request message including an enhanced quality of service capability indication; and returning an enhanced service when the recipient itself supports the enhanced quality of service capability A response message indicating the quality capability indication.

On the other hand, the embodiment of the present invention provides a core network device, where the core network device includes: a first receiving unit, configured to receive an access request message that is sent by the terminal and includes an enhanced QoS capability indication; And, when the core network device itself supports the enhanced quality of service capability, returning an access response message including the enhanced quality of service capability indication.

In another aspect, the embodiment of the present invention provides a QoS parameter conversion method, where the method includes: receiving a message that is sent by a terminal device and including a traditional QoS parameter; when the core network device supports the enhanced QoS capability, The traditional quality of service parameter carried in the message sent by the terminal is converted into an enhanced quality of service parameter; the sending includes conversion to an enhanced quality of service parameter. Message to the core network.

In another aspect, the embodiment of the present invention provides a core network device, where the core network device includes: a receiving unit, a message that is sent by the terminal device and includes a traditional quality of service parameter; and a conversion unit, when the core network device supports the enhanced network The service quality capability converts the traditional quality of service parameter carried in the message sent by the terminal into an enhanced quality of service parameter; and the sending unit sends a message including the converted quality of service parameter to the core network.

In another aspect, an embodiment of the present invention provides an access network device, where the access network device includes: a receiving unit, configured to receive a radio access bearer allocation request that includes an enhanced quality of service capability indication sent by a core network device. a sending unit, configured to return a radio access bearer allocation response message to the core network device, where the access network device supports the enhanced quality of service capability, the radio access bearer allocation response message includes the Enhanced Quality of Service Capability Indicator.

The QoS capability negotiation method and device of the embodiment of the present invention selects more efficient QoS capability by performing QoS capability negotiation between different devices (such as UE, CN, RNC) in the network. The QoS parameter conversion method and device of the embodiment of the present invention can convert the traditional QoS parameters supported by the terminal and the enhanced QoS parameters supported by the core network, thereby realizing the fusion of different QoS capabilities. .

DRAWINGS

1 is an overall flowchart of a method for negotiating a quality of service capability according to an embodiment of the present invention;

2 is a flowchart of performing QoS capability negotiation between a terminal device and a core network device according to an embodiment of the present invention;

3 is a flowchart of performing QoS capability negotiation between a core network device and an access network device according to an embodiment of the present invention;

4 is a flowchart of a method for performing QoS parameter conversion according to an embodiment of the present invention;

FIG. 5 is a second flowchart of a method for performing QoS parameter conversion according to an embodiment of the present invention;

6 is a practical working flowchart of performing QoS conversion according to an embodiment of the present invention; FIG. 7 is a functional block diagram of a core network device 20 according to an embodiment of the present invention;

8 is a functional block diagram of a core network device 20' according to an embodiment of the present invention;

FIG. 9 is a functional block diagram of a core network device 30 according to an embodiment of the present invention;

FIG. 10 is a functional block diagram of an access network device 40 according to an embodiment of the present invention.

detailed description

The specific embodiments of the present invention are described in detail below with reference to the accompanying drawings: Embodiment 1: This embodiment provides a service quality capability negotiation method, and FIG. 1 is an overall flowchart of a service quality capability negotiation method according to the embodiment. As shown in Figure 1, the method includes:

Step S101: Receive a request message that includes an enhanced QoS capability indication.

Step S102: When the recipient itself supports the enhanced quality of service capability, return a response message including the enhanced quality of service capability indication.

Optionally, the method further includes: performing service interaction with the enhanced quality of service parameter.

The requesting party and the receiving party performing the quality of service capability negotiation in this embodiment may be different network devices. For example, the requesting party is the terminal device, and the receiving party is the core network device; or the requesting party is the core network device, and the receiving party is the access network device. The service quality capability negotiation method of this embodiment will be described in detail below with reference to specific examples.

FIG. 2 is a flowchart of performing QoS capability negotiation between a terminal device and a core network device according to an embodiment of the present invention. As shown in Figure 2, the method includes:

Step S201: The core network device receives an access request message sent by the terminal device (Attach)

Request), when the terminal device supports enhanced QoS capability, the Attach Request message includes an enhanced QoS capability indication.

In this embodiment, the UE sends an Attach Request message to the SGSN, and the SGSN receives the Attach Request sent by the UE. If the UE does not support the enhanced QoS capability, the Attach Request message uses the existing Attatch Request message structure. If the UE supports the enhanced QoS capability, The Attach Request message carries a new indication with enhanced QOS capabilities. Table 1 is a chart of an Attatch Request message containing an enhanced QoS capability indication according to an embodiment of the present invention.

Step S202: The core network device replies with a connection response message to the terminal device. When the core network device supports the enhanced QoS capability, the connection response message includes an enhanced QoS capability indication.

In the embodiment of the present invention, the SGSN performs the decoding after receiving the Attach Request message, and if the SGSN supports the enhanced QoS capability, the indication of the enhanced QoS capability is carried in the access acknowledge message (Attach Accept or Attach reject); if the SGSN does not support The enhanced QoS capability does not identify the enhanced QoS capability of the UE after decoding, and does not carry an enhanced QoS capability indication in the reply Attach Accept or Attach reject message. Table 2 is a structure of an Attatch Accept message including an enhanced QoS capability indication according to an embodiment of the present invention. Table 3 is a structure of an Attatch Reject message including an enhanced QoS capability indication according to an embodiment of the present invention.

Table 2

IEI Information Element Type/Reference Presence Format Length

Protocol discriminator Protocol discriminator (protocol identification M V 1/2

(protocol discriminator)

10.2

Skip indicator Skip indicator ignore indicator M V 1/2

10.3.1

Attach accept message Message type M V 1 identity 10.4

(Access Allow Message ID)

Attach result Attach result M V 1/2

(access result) 10.5.5.1

Force to standby Force to standby M V 1/2

(forced waiting) 10.5.5.7

Periodic RA update timer GPRS Timer M V 1

(Periodic Routing Area Update Timing (General Packet Radio Service Timer)

Device) 10.5.7.3

Radio priority for SMS SMS Radio priority M V 1/2 wireless priority 10.5.7.2

Radio priority for Radio priority 2 M V 1/2 TOM8TOM8 wireless priority 10.5.7.5

Routing area identification Routing area identification M V 6

(routing area ID) (routing area ID)

10.5.5.15

19 P-TMSI signature P-TMSI signature 0 TV 4

(Packet Temporary Mobile Subscriber Identity (Packet Temporary Mobile Subscriber Identity Signature)

Signature) 10.5.5.8

17 Negotiated READY timer GPRS Timer 0 TV 2

Value (general packet radio service timer)

(Ready timer value after negotiation) 10.5.7.3

18 Allocated P-TMSI Mobile identity 0 TLV 7

(Assigned group temporary mobile users 10.5.1.4

Identifier)

table 3

Step S203: The terminal device receives the connection response message, and determines whether the core network device supports the enhanced QoS function according to whether the message carries an enhanced QoS capability indication. When both the terminal device and the core network device support enhanced QoS capabilities, the terminal device and the core network device use enhanced QoS parameters for service interaction, otherwise, the traditional QoS parameters are used for service interaction.

3 is a QoS capability association between a core network device and an access network device according to an embodiment of the present invention; Business flow chart. As shown in FIG. 3, the method includes:

Step S301: The core network device SGSN sends a radio access bearer allocation request message (RAB Assignment Request) to the access network device RNC, where the message carries an indication with enhanced QoS capability, and the indication may be an enhanced QoS parameter including AMBR and/or Or QCI.

Step S302: The RNC receives the RAB Assignment Request message and performs decoding. If the RNC supports the enhanced QoS capability, the RNC Assignment Response carries an indication indicating the enhanced QoS capability. If the RNC does not support the enhanced QoS capability, the enhanced QoS capability of the UE cannot be identified after decoding, and the enhanced QoS capability indication is not carried in the replied RAB Assignment Response message.

Step S303: After receiving the RAB Assignment Response, the SGSN determines whether the RNC supports the enhanced QoS function according to whether the message carries an enhanced QoS capability indication. When both the SGSN and the RNC support the enhanced QoS capability, the SGSN and the RNC use enhanced QoS parameters for service interaction. Otherwise, the traditional QoS parameters are used for service interaction. Embodiment 2 This embodiment provides a method for QoS parameter conversion. When the terminal device 10 does not support enhanced

The core network device 20 of the present embodiment can also convert the traditional QoS parameters carried in the message sent by the terminal device 10 into enhanced QoS parameters, or will be cored by the core network device 20, when the core network device 20 supports the enhanced QoS capability. The enhanced QoS parameters carried in the message sent by the network to the terminal device 10 are converted into conventional QoS parameters.

After the terminal equipment and the core network equipment are negotiated by the QoS capabilities of Embodiments 1 and 2, four results may occur: (1) If the UE supports enhanced QoS capabilities, CN (Core Network) also supports enhanced QoS capabilities. Then the UE uses the enhanced QoS for the service request; (2) if the UE supports the enhanced QoS capability, the CN does not support the enhanced QoS capability, the UE uses the unenhanced QoS for the service request; (3) If the UE does not support the QoS Enhanced capabilities, CN does not support enhanced QoS capabilities, both UE and CN use traditional QoS capabilities for services. QoS interaction; (4) If the UE does not support the QoS enhancement capability, and the CN supports the enhanced QoS capability, both the UE and the CN adopt the traditional QoS capability for the QOS interaction of the service; if the RNC supports the enhanced QoS capability, the SGSN will be the traditional The QoS capabilities are mapped to QCI-based enhanced QoS capabilities and passed to the RNC; if the RNC does not support enhanced QoS capabilities, the legacy QOS allocation process is followed.

Optionally, the core network device in the embodiment of the present invention is a serving GPRS support node SGSN, and the access network device is a radio network controller (RNC), and the enhanced QoS parameters may include: QCI and/or AMBR. For the fourth possible result, the core network device 20 of the embodiment of the present invention also converts the QoS parameters.

FIG. 4 is a flowchart of a method for performing QoS parameter conversion according to the embodiment; as shown in FIG. 4, the method includes:

Step S401: Receive a message that is sent by the terminal device and that includes the traditional QoS parameter. Step S402: When the core network device supports the enhanced QoS capability, convert the traditional QoS parameter carried in the message sent by the terminal to enhanced. Quality of service parameters;

Step S403: Send a message including the converted quality of service parameter to the core network. FIG. 5 is a second flowchart of a method for performing QoS parameter conversion according to the embodiment; as shown in FIG. 5, the method includes:

Step S501: Receive a message that includes an enhanced QoS parameter sent by the core network. Step S502: When the terminal does not support the enhanced QoS capability, the enhanced service quality carried in the message sent by the core network is performed. The parameter is converted into a traditional quality of service parameter; step S503, sending a message including the conversion to the traditional quality of service parameter to the terminal device.

It should be noted that the actual process may include both the process of Figure 4 and the process of Figure 5.

FIG. 6 is a practical working flowchart of performing QoS conversion according to an embodiment of the present invention. As shown in Figure 6 Step S601: The UE sends an Activate PDP (Context Data Protocol) Context Request (APCR) to the SGSN, where the request carries a traditional QoS parameter.

Step S602: After receiving the APCR, the SGSN maps the traditional QoS parameters requested by the UE to the enhanced QoS parameters based on the QCI according to the subscription restriction, and the mapping relationship is a mapping relationship already defined in the protocol, and the mapping relationship is as shown in Table 4. :

Table 4

Step S603A: The SGSN sends the RAB Assignment Request to the RNC, where the message carries related parameters such as QCI, AMBR, GBR, and MBR.

Step S603B: The RNC returns an RAB Assignment Response to the SGSN.

If the RNC supports the enhanced QoS capability, the RNC maps the enhanced QoS parameter based on the QCI to the RAB configuration and returns an indication message indicating that the configuration is successful, and then proceeds to step S305; If the RNC does not support the enhanced QoS capability, the parameter cannot be identified, and the SGSN is not indicated to the SGSN, and the SGSN reuses the traditional UMTS QoS parameters for the RAB allocation process. This process is the same as the current 3GPP protocol processing process, and will not be described here.

Step S604: The SGSN maps the enhanced QoS parameters based on the QCI to the QoS parameters of the UMTS, and the mapping relationship is shown in Table 4.

Step S605: The SGSN sends an Active PDP Context Accept (APCA) message to the UE, where the message carries the traditional UMTS QoS parameter. Embodiment 3: An embodiment of the present invention further provides a core network device 20. FIG. 7 is a functional block diagram of a core network device 20 according to an embodiment of the present invention. As shown in FIG. 7, the core network device 20 of this embodiment includes: a first receiving unit 201, configured to receive an access request message that is sent by the terminal and includes an enhanced QoS capability indication, where the first sending unit 202 is configured to be used. When the core network device itself supports enhanced quality of service capabilities, an access response message containing an enhanced quality of service capability indication is returned.

FIG. 8 is another functional block diagram of the core network device of the embodiment. As shown in FIG. 8, the core network device 20' further includes: a service interaction unit 203, configured to perform service interaction with the terminal by using enhanced quality of service parameters. Optionally, the core network device 20' of FIG. 8 further includes: a second sending unit 204, configured to send, to the access network device, a radio access bearer allocation request message that includes an enhanced quality of service capability indication; the second receiving unit 205 And receiving, by the access network device, a radio access bearer allocation response message, where the access network device supports the enhanced quality of service capability, the radio access bearer allocation response message includes the enhanced quality of service Ability indication.

For the QoS negotiation method of the core network device in this embodiment, refer to the description of Embodiment 1, and the description is not repeated here. Optionally, the core network device of the embodiment of the present invention is a serving GPRS support node SGSN, and the access network device is a radio network controller (RNC), and the enhanced QoS parameters may include: QCI and/or AMBR. Example 4: The embodiment of the invention further provides a core network device. FIG. 9 is a functional block diagram of a core network device according to the embodiment. As shown in FIG. 5, the core network device 30 of this embodiment includes: a receiving unit 301, configured to receive a message that is sent by a terminal device and includes a traditional quality of service parameter, and a converting unit 302, configured to: when the core network device supports the enhanced The QoS function converts the traditional QoS parameter carried in the message sent by the terminal into an enhanced QoS parameter. The sending unit 303 is configured to send a message including the QoS parameter converted to the enhanced core to the core network.

Optionally, the receiving unit 301 of the embodiment is further configured to receive a message that is sent by the core network and that includes the enhanced QoS parameter. The converting unit 302 is further configured to: when the terminal does not support the enhanced QoS capability, The enhanced quality of service parameter carried in the message sent by the core network is converted into a traditional quality of service parameter. The sending unit 303 is further configured to send a message including the converted to the traditional quality of service parameter to the terminal device.

For the method of performing QoS parameter conversion by using the core network device of this embodiment, refer to the description of Embodiment 32, which is not repeated here. Optionally, the core network device in the embodiment of the present invention is a serving GPRS support node SGSN, and the access network device is a radio network controller (RNC), and the enhanced QoS parameters may include: QCI and/or AMBR.

Example 5

The embodiment of the present invention further provides an access network device, and FIG. 10 is a functional block diagram of the access network device according to the embodiment. As shown in FIG. 10, the access network device 40 of this embodiment includes: a receiving unit 401, configured to receive a radio access bearer allocation request message that is sent by a core network device and includes an enhanced QoS indicator, and a sending unit 402, Returning a radio access bearer allocation response message to the core network device, where the access network device supports the enhanced quality of service capability, the radio access bearer allocation response message includes the enhanced quality of service capability indication .

For the method of performing QoS negotiation by using the access network device of this embodiment, refer to the description of Embodiment 1, which is not repeated here. Optionally, the core network device of the embodiment of the present invention is a serving GPRS support node SGSN, and the access network device is a radio network controller (RNC), and the enhanced QoS parameters may include: QCI and/or AMBR. The QoS capability negotiation method and device in the embodiment of the present invention selects more efficient QoS capabilities by implementing QoS capability negotiation between different devices in the network, such as UE, CN, and RNC, to implement QoS interaction between different network devices. The QoS conversion method and apparatus of the embodiments of the present invention perform QoS conversion by the CN side to complete QOS fusion when the UE supports the unenhanced QoS capability, and the CN node supports the enhanced QoS capability.

A person skilled in the art can understand that all or part of the steps of implementing the above method embodiments may be completed by using hardware related to program instructions, and the foregoing program may be stored in a computer readable storage medium, and the program is executed when executed. The steps of the foregoing method embodiments are included, and the foregoing storage medium includes: a medium that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.

The above embodiments are only used to explain the technical solutions of the embodiments of the present invention, and are not limited thereto; although the embodiments of the present invention are described in detail with reference to the foregoing embodiments, those skilled in the art should understand that The technical solutions described in the embodiments are modified, or the equivalents of the technical features are replaced by the equivalents. The modifications and substitutions of the embodiments do not depart from the spirit and scope of the technical solutions of the embodiments of the embodiments of the present invention.

Claims

Claim

A method for negotiating a quality of service capability, the method comprising: receiving a request message including an enhanced quality of service capability indication;

When the recipient itself supports enhanced quality of service capabilities, a reply message containing an enhanced quality of service capability indication is returned.

2. The method according to claim 1, wherein the method further comprises: performing service interaction by using an enhanced quality of service parameter.

3. The method of claim 1 wherein:

The request message for receiving the enhanced quality of service capability indication is specifically: the core network device receives an access request message that is sent by the terminal device and includes an enhanced quality of service capability indication; when the receiver supports the enhanced quality of service capability And returning the response message that includes the enhanced quality of service capability indication, specifically: when the core network device supports the enhanced quality of service capability, returning an access response message that includes the enhanced quality of service capability indication.

The method according to claim 1, wherein the method specifically includes: the receiving, by the access network device, the request message that includes the enhanced QoS indicator, is: a radio access bearer allocation request message indicated by the quality of service capability;

When the receiving party itself supports the enhanced quality of service capability, the reply message including the enhanced quality of service capability indication is specifically: when the access network device supports the enhanced quality of service capability, the return includes the enhanced quality of service capability The indicated radio access bearer allocates a response message.

5. The method of claim 2, wherein the enhanced quality of service parameters comprise: a quality of service level indicator and/or a total maximum bit rate.

A core network device, where the core network device includes:

a first receiving unit, configured to receive, by the terminal, an access request message that includes an enhanced quality of service capability indication;

a first sending unit, configured to: when the core network device itself supports enhanced quality of service capability An access response message containing an enhanced quality of service capability indication is returned.

The core network device according to claim 6, wherein the core network device further includes:

A service interaction unit, configured to perform service interaction with the terminal by using enhanced quality of service parameters.

a second sending unit, configured to send, to the access network device, a radio access bearer allocation request message that includes an enhanced quality of service capability indication;

a second receiving unit, configured to receive a radio access bearer allocation response message sent by the access network device, where the access network device supports the enhanced QoS capability, the radio access bearer allocation response message includes the Enhanced Quality of Service Capability Indicator.

The core network device according to any one of claims 6-8, wherein the enhanced quality of service parameter comprises: a quality of service level identifier and/or a total maximum bit rate.

A method for converting a quality of service parameter, the method comprising: receiving a message that is sent by a terminal device and includes a traditional quality of service parameter;

When the core network device supports the enhanced quality of service capability, the traditional quality of service parameter carried in the message sent by the terminal is converted into an enhanced quality of service parameter;

Send a message containing the converted quality of service parameters to the core network.

The method according to claim 10, wherein the method further comprises: receiving a message that is sent by the core network and includes an enhanced quality of service parameter;

And when the terminal does not support the enhanced quality of service capability, converting the enhanced quality of service parameter carried in the message sent by the core network into a traditional quality of service parameter;

The message containing the conversion to the traditional quality of service parameter is sent to the terminal device.

12. A core network device, comprising: a receiving unit, configured to receive a message that is sent by the terminal device and includes a traditional QoS parameter, and a converting unit, configured to: when the core network device supports the enhanced QoS capability, the traditional service quality carried in the message sent by the terminal The parameter is converted into an enhanced quality of service parameter; the sending unit is configured to send a message containing the converted quality of service parameter to the core network.

13. The core network device of claim 12, wherein

The receiving unit is further configured to receive, by the core network, a message that includes an enhanced quality of service parameter;

The converting unit is further configured to: when the terminal does not support the enhanced quality of service capability, convert the enhanced quality of service parameter carried in the message sent by the core network into a traditional quality of service parameter;

The sending unit is further configured to send a message including the converted to the traditional quality of service parameter to the terminal device.

An access network device, where the access network device includes:

a receiving unit, configured to receive a radio access bearer allocation request message that is sent by the core network device and includes an enhanced quality of service capability indication;

a sending unit, configured to return a radio access bearer allocation response message to the core network device, where the access network device supports the enhanced quality of service capability, where the radio access bearer allocation response message includes the enhanced Service Quality Capability Indicator.