WO2005057958A1

WO2005057958A1 - A method for realizing packet data priority service

Info

Publication number: WO2005057958A1
Application number: PCT/CN2004/001223
Authority: WO
Inventors: Jie Wang
Original assignee: Huawei Technologies Co., Ltd.
Priority date: 2003-12-11
Filing date: 2004-10-28
Publication date: 2005-06-23
Also published as: CN1627778A; CN100490476C

Abstract

The invention discloses a method for realizing packet data priority service, setting and storing priority service level of the users using packet data service in advance, the method also comprises: A, the user with priority service level sends packet data protocol content activation request carrying the priority service mark to the general packet radio service support node; B, general packet radio service support node receives the packet data protocol content activation request, and deal with this request deferentially according to the ;priority service level of this user' equipment. Thus, the method provided in the invention realizes the packet data priority service, making the 3GPP network provide packet data service of different QoS depending on the different priority service level.

Description

Method for implementing packet data priority service

The present invention relates to processing technology for packet data services, and in particular, to a method for implementing packet data priority services. Background of the invention

As mobile users' requirements for the quality of mobile network services continue to rise, providing different quality of services according to different target mobile user groups has become a topic of general concern for operators. Priority business services have become an effective means for more and more operators to improve mobile user satisfaction. Priority service refers to dividing mobile users into multiple priority service levels. When a mobile user requests a priority service, the network does not prioritize the service and according to the priority level of the mobile user, it provides a higher priority than the ordinary service. In the case of network congestion or insufficient resources, priority services sent by mobile users with high priority service levels can be processed with high priority to meet the needs of high priority mobile users.

At present, the implementation scheme of the voice priority service supported by the 3GPP network is as follows.

The voice priority service in the 3GPP network is a subscription service and does not require mobile users to actively perform registration, logout, and other operations. Which mobile users are allowed to use priority services and setting the priority service level settings for mobile users is determined by the operator or other agencies. The access level of ordinary mobile users defined by 3GPP is divided into 10 levels from 0 to 9, and 11 to 15 are 5 special access levels, which are defined as mobile network use, security services, public agency personnel, and internal employees of operators. The access level of each mobile user is stored in the home subscriber server (HSS) as user subscription data, or / and in the subscriber identity module (SIM) of the mobile user.

Mobile users with priority service levels can decide whether to initiate priority for each call Call. When the mobile user sends a priority call request to the tandem network and the receiving network, the priority call request carries a priority service identifier and the priority level of the mobile user, and the 3GPP network identifies the call request according to the priority service identifier carried in the request. Is a priority call.

When the originating network and the tandem network receive priority call requests, the originating network and the tandem network provide special call progress capabilities, exempting restrictive network management controls, including code control, manual cancellation control, automatic congestion control, and relay Reservation control to increase the likelihood of call completion under severe congestion. When the tandem network occupies the inter-office trunk circuit, the queuing is performed according to the priority service level of the priority call request. When the tandem network does not occupy the inter-office trunk circuit, the priority call request is processed in accordance with the queued order.

When there are no available wireless channel resources at the originator, queues are made according to the call priority and arrival time; when the wireless channel resources at the originator are available, the priority call requests are processed in turn according to the queuing order.

Priority services can be applied to all mobile services, but at this stage 3GPP only provides implementation solutions for circuit-switched voice priority services, while implementation solutions for packet data priority services do not. Therefore, how to implement the priority service in the packet data service is an urgent problem. Summary of the invention

In view of this, the main object of the present invention is to provide a method for implementing a packet data priority service, which can implement a packet data priority service, thereby enabling a 3GPP network to provide a packet data priority service with high quality of service to a mobile user with a high priority service level. .

According to the foregoing object of the invention, the specific technical solution of the present invention is implemented as follows: A method for implementing a packet data priority service, which is characterized by setting a priority service level to a user equipment using the packet data service, and the method further includes:

A. A user equipment with a priority service level initiates a packet data protocol content activation request carrying a priority service identifier to a general packet radio service support node; B. After receiving the packet data protocol content activation request, the general packet radio service support node preferentially processes the request according to the priority service level of the user equipment.

The user equipment priority service level is set in a home location register;

Before step A, the method further includes the step of obtaining the priority service level of the user equipment:

All, the home location register sends a user data request carrying a priority service level of the user equipment to a general packet radio service support node that has jurisdiction over the user equipment;

A12. After receiving the request, the general packet radio service support node obtains the user equipment priority service level from the request, and returns a user data confirmation message to the home location register.

The user equipment priority service level is set in both the user identification module and the home location register of the user equipment;

The packet data protocol content activation request in step A further carries a priority service level obtained by the user equipment from the user identification module; 'before step B prioritizes the request according to the user equipment priority service level, The method includes the steps of obtaining the priority service level of the user equipment. The general packet radio service support node obtains the priority service level of the user equipment from the packet data protocol content activation request, and obtains the packet data protocol content activation request from the home location register. Compare the priority service level of the user equipment to determine whether the two are the same, and if yes, prioritize the request according to the priority service level of the user equipment; otherwise, return a failure response to the request to the user equipment, discard the request, or The user equipment obtaining the packet data protocol content activation request from the home location register performs priority processing.

The priority service level of the user equipment is set in a user identification module of the user equipment; the packet data protocol content activation request in step A further carries a priority service level obtained by the user equipment from the user identification module;

The user equipment priority service level described in step B is a general packet radio service support section The point is obtained from the packet data protocol content activation request.

Before step B prioritizes the request according to the priority service level of the user equipment, the method further includes:

The general packet radio service support node determines whether there are available resources for itself. If there are no available resources, it preferentially processes the packet data protocol content activation request described in step B; otherwise, it performs the packet data protocol content activation request described in step B. Perform normal processing.

The general packet radio service support node receives the packet data protocol content activation request carrying the user equipment priority service identifier. Prioritizing the packet data protocol content activation request described in step B includes:

The packet data protocol content activation request is queued according to the arrival time of the packet data protocol content activation request and the priority level of the user equipment. When the general packet radio service support node has available resources, the received packets are processed in order according to the queued order. Data protocol content activation request.

A timer is set in advance, and when queuing according to the priority level of the user equipment sending the packet data protocol content activation request, the method further includes:

A timer is started for each packet data protocol content activation request that enters the queuing queue. If the timer expires, the general packet radio service support node deletes the queued packet data protocol content activation request and returns a packet to the user equipment that sent the request. Data protocol content activation request failed message.

When the packet data protocol content activated by the user equipment exists in the general packet radio service support node, prioritizing the packet data protocol content activation request described in step B includes:

The general packet radio service support node determines whether the priority level of the packet data protocol content activated by the user equipment is lower than the priority of the received packet data protocol content activation request, and if so, deletes the low priority level activated by the user equipment. Packet data protocol content, Enable the resources released in the general packet radio service support node to process the high priority activation request of the user equipment; otherwise, the general packet radio service support node queues the received packet data protocol content service request and waits for available resources For processing.

When there is activated packet data protocol content in the general packet radio service support node, a packet data protocol content activation request carrying a priority service identifier initiated by the user equipment is received, and the packet data protocol content activation request described in step B is preferentially processed. Including: The general packet radio service support node determines whether the priority level of the activated packet data protocol content is lower than the priority level of the received packet data protocol content activation request, and if so, deletes the activated low priority packet data protocol. Content, so that the resources released in the general packet radio service support node can handle high priority activation requests; otherwise, the general packet radio service support node queues the received packet data protocol content service request and waits for processing when there are available resources .

After step B, the method further includes:

Cl. The user equipment sends a packet data protocol content activation modification request carrying a priority service identifier to the general packet radio service support node;

D1. The general packet radio service supporting node that receives the modification request for the priority service identifier receives the modification request according to the priority service level of the user equipment.

The general packet radio service support node includes a service general packet radio service support node and a gateway general packet radio service support node;

The step B prioritizes the request according to the priority service level of the user equipment includes:

B31. After receiving the service in the general packet radio service support node requested in step A, the general packet radio service support node sends a packet data protocol content creation request carrying the priority service level of the user equipment to the gateway general packet radio service support node;

B32. The gateway general packet radio service support node obtains the user from the creation request. The device prioritizes the service level, and prioritizes the user equipment according to the priority level. The method further includes:

C2. After the gateway general packet radio service support node processes the packet data protocol content creation request, it returns a response to the packet data protocol content creation request to the serving general packet radio service support node;

D2. After receiving the response, the serving general packet radio service support node returns a response to the packet data protocol content activation request to the user equipment.

According to the foregoing solution, it can be seen that the present invention proposes a solution for implementing a packet data priority service. When a user equipment (UE) initiates a packet data protocol content (PDP context) activation request, the PDP context activation request carries a priority service identifier. Thereby, the serving general packet radio service support node (SGSN) learns that the UE has initiated the multimedia priority service. The SGSN obtains the UE priority service level from the home location register (HLR) in advance, and initiates a PDP context creation request to the gateway general packet radio service support node (GGSN) to carry the priority service identifier and the UE priority service level. The SGSN or GGSN may The priority of the service level determines the method for processing the PDP context activation request. Therefore, the method provided by the present invention implements packet data priority services, thereby enabling the 3GPP network to provide packet data services with high quality of service to users of high priority service levels. Brief description of the drawings

FIG. 1 is a flowchart of an embodiment of a method for implementing a packet data priority service by a UE according to the present invention. Mode of Carrying Out the Invention

In order to make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the embodiments and the accompanying drawings.

The invention sets the UE of the mobile user using the packet data service of the 3GPP network in advance. Set priority service level: The priority service level of the UE of the mobile user does not require the mobile user to actively set and cancel the operation. Instead, the operator or other organization determines the priority service level of the UE of the mobile user. The priority service levels of UEs for ordinary mobile users are divided into 0 ~ 10 levels, and the levels of 11 ~ 15 are 5 special access levels, which are defined as mobile network use, security services, public agency personnel, emergency services, and internal employees of operators . The priority service level of the UE of each mobile user is stored in the HLR as the subscription data of the mobile user, or / and in the SIM card of the UE of the mobile user.

The mobile user can decide whether to use the priority service for the PDP context. If the mobile user decides to use a priority service, when the UE of the mobile user sends a PDP context activation request to the SGSN, the PDP context activation request carries a priority service identifier and a service general packet radio service support node in the prior art ( SGSN). After the corresponding SGSN obtains the PDP context activation request, it learns that the UE initiates a packet data priority service according to the priority service identifier in the request. After the SGSN obtains the UE priority service level in advance, it sends a general packet radio service support node to the gateway ( GGSN) Initiate a PDP context creation request to carry the priority service identifier and the priority service level of the UE. The SGSN or GGSN prioritizes the PDP context activation message initiated by the UE according to the level of the priority service level of the UE to improve the UE access packet. Data business success. If the mobile user decides not to use the priority service, the UE normally accesses the packet data service according to the existing technology.

When the GSN of the packet data network receives a PDP context activation request from the UE carrying the UE priority service identifier, if no resources are available, it queues according to the PDP context activation request arrival time and the UE priority service level. When resources are available, Process the PDP context activation requests in order according to the queued order.

The GSN according to the present invention includes a SGSN and a GGSN.

As shown in FIG. 1, FIG. 1 is an embodiment of a method for implementing a packet data priority service by a UE according to the present invention The flowchart, the entities that implement the packet data priority service method include: UE, SGSN, HLR, and GGSN. The specific steps are:

Step 100: When a UE that has applied for a packet data priority service accesses a packet domain or performs a location update for the first time, the HLR initiates a user data request for inserting the UE to the SGSN. The request carries the UE priority service level, and the UE The priority service level is obtained from the SIM card of the UE;

Step 101: After receiving the user data request for inserting the UE, the SGSN stores the priority service level of the UE carried in the request, and returns the user data inserted for the UE to the HLR for confirmation and cancellation.-Step 102, the UE initiates a PDP context to the SGSN. An activation request, which carries a priority service identifier;

Step 103: The SGSN identifies the priority service identifier in the PDP context activation request, learns the UE priority service level based on the UE priority service level that is saved in advance, and determines whether the SGSN has available resources. If so, according to the existing technology Normal flow processing; otherwise, if the SGSN is congested, special processing is performed on the PDP context activation request;

After the SGSN processes the PDP context activation request, it initiates a PDP context creation request to the GGSN, where the request carries the priority service identifier and the UE priority service level;

Step 104: The GGSN obtains the priority service level of the UE from the message, and determines whether the GGSN has available resources. If so, it is processed according to the normal process in the prior art; otherwise, the GGSN is congested, and the PDP context is The creation request is specially processed. Step 105: After the GGSN finishes processing the PDP context creation request, the GGSN sends a response to the PDP context creation request to the SGSN, and the response may or may not include a priority service identifier;

Step 106: When the SGSN receives the response to the PDP context creation request, it sends a response to the PDP context activation request to the UE. The response may or may not include priority. Business identity.

If the UE priority level is stored not only in the HLR but also in the SIM card of the UE, the above process further includes: when the UE initiates a PDP context activation request to the SGSN, it may carry the UE priority service level and priority service identifier, Then, the SGSN compares the UE priority service level obtained from the PDP context activation request with the UE priority service level obtained from the HLR. If they are the same, the subsequent processing is as shown in FIG. 1. If they are not the same, , A response to the PDP context activation request failure is returned to the UE, and the PDP context activation request is discarded. When not the same, the SGSN may also process the PDP context activation request according to the UE priority service level obtained from the HLR.

The above SIM card is a general name of a subscriber identity module in the UE, and can store subscription information of the second generation mobile network, subscription information of the third generation mobile network, and subscription information of a packet data service.

When congestion occurs in the SGSN and the GGSN, special processing is performed on the PDP context activation request or the PDP context creation request. The process is as follows:

(1) If there is an activated PDP context of the UE that initiated the PDP context activation request in the SGSN, the SGSN determines whether the priority level of the activated PDP context of the UE is lower than the priority level of the received PDP context activation request of the UE If yes, delete the PDP context of the low priority that the UE has activated, so that the resources released in the SGSN can process the high priority PDP context activation request of the UE; otherwise, the SGSN performs the received PDP context activation request. Queue and wait for processing when resources are available.

GGSN processes the PDP context creation request in the same way as SGSN processes the PDP context activation request.

(2) The SGSN queues the PDP context activation request according to the arrival time of the PDP context activation request and the UE priority service level. When resources are available, the PDP context activation request is processed in turn according to the queued order, and the PDP context activation request is returned. Respond to the UE; for a PDP context activation request waiting in line, a timer may be started, the PDP context activation request is deleted after the timer expires, and a response to the PDP context activation request failure is returned to the UE;

(3) If there are PDP contexts activated by other UEs in the SGSN, determine whether the priority level of the PDP contexts activated by other UEs is higher than the priority level of the received PDP context activation request. If so, the SGSN deletes the other UEs that are already activated. PDP context, so that the released resources can process high-priority PDP context activation requests; otherwise, the SGSN queues the received PDP context activation requests and waits for processing when resources are available;

After the UE successfully initiates the PDP context activation request, if the UE initiates a modification of the PDP context activation request to the SGSN, because the SGSN has stored the priority service identifier, the modification PDP context activation request may or may not carry the priority service identifier. If the SGSN has available resources, the normal PDP context activation request is processed according to the prior art; if the SGSN is congested, the modified PDP context activation request is specially processed. The special processing process is the same as the above PDP. The special processing for context activation requests is the same.

The processing procedure of the GGSN to modify the PDP context creation request is the same as that of the SGSN to the modification PDP context activation request.

The SGSN or GGSN charging information needs to include a priority service identifier, and may or may not include a user priority service level. When the operator charges different priority service levels, the GSN charging information needs to include the user priority service level, so that the charging center can perform different charging according to different UE priority service levels. If the SGSN does not support the packet data priority service, that is, it does not recognize the priority service identifier of the UE carried in the PDP context activation request, ignore the parameters related to the priority service, and process according to the process of processing the PDP context activation request in the prior art; if the GGSN does not Packet data priority services are supported, then parameters related to the priority services are ignored, and processing is performed according to the process of processing a PDP context creation request in the prior art.

The above description is only a good embodiment of the present invention, and is not intended to limit the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the present invention. Within the scope of protection.

Claims

Claim

1. A method for implementing a packet data priority service, which is characterized by setting a priority service level to a user equipment using the packet data service, and the method further comprises:

A. A user equipment with a priority service level sends a packet data protocol content activation request carrying a priority service identifier to a general packet radio service support node;

B. After receiving the packet data protocol content activation request, the general packet radio service support node preferentially processes the request according to the priority service level of the user equipment.

2. The method according to claim 1, wherein the priority service level of the user equipment is set in a home location register;

Before step A, the method further includes the step of obtaining the priority service level of the user equipment: A1. The home location register sends a user data request carrying the priority service level of the user equipment to a general packet radio service support node that manages the user equipment;

A12. After receiving the request, the general packet radio service support node obtains the priority service level of the user equipment from the request, and returns a user data confirmation message to the home location register.

3. The method according to claim 2, wherein the priority service level of the user equipment is set in both a user identification module and a home location register of the user equipment; the packet data protocol content activation request in step A Further carrying the user equipment priority service level obtained from the user identification module;

Before step B preferentially processes the request according to the priority service level of the user equipment, the method further includes: a general packet radio service support node obtaining the priority service level of the user equipment from the packet data protocol content activation request, and The location register obtains the priority service level of the user equipment for the packet data protocol content activation request to compare whether the two are the same, and if so, optimizes the request according to the priority service level of the user equipment. Process it first; otherwise, return a failed response to the request to the user equipment and discard the request, or perform priority processing according to the user equipment priority service level that obtained the packet data protocol content activation request from the home location register.

4. The method according to claim 1, wherein the priority service level of the user equipment is set in a user identification module of the user equipment;

The packet data protocol content activation request in step A further carries the priority service level of the user equipment obtained from the user identification module;

The user equipment priority service level described in step B is obtained by the general packet radio service support node from the packet data protocol content activation request.

5. The method according to claim 1, wherein before step B, prioritizing the request according to the user equipment priority service level, the method further comprises:

6. The method according to claim 5, wherein the general packet radio service support node receives a packet data protocol content activation request carrying a user equipment priority service identifier, and performs the packet data protocol content activation request in step B. Priority processing includes:

7. The method according to claim 6, wherein a timer is set in advance, and when queuing according to the priority service level of the user equipment sending the packet data protocol content activation request, the method further comprises:

Start a timer for each packet data protocol content activation request that enters the queuing queue, If the timer expires, the general packet radio service support node deletes the queued packet data protocol content activation request and returns a packet data protocol content activation request failure message to the user equipment that sent the request.

8. The method according to claim 5, characterized in that, when the packet data protocol content activated by the user equipment exists in the general packet radio service supporting node, the packet data protocol content activation request in step B is preferentially processed. Including:

The general packet radio service support node determines whether the priority level of the packet data protocol content activated by the user equipment is lower than the priority of the received packet data protocol content activation request, and if so, deletes the low priority level activated by the user equipment. The content of the packet data protocol to enable the resources released in the general packet radio service support node to process the high priority activation request of the user equipment; otherwise, the general packet radio service support node queues the received packet data protocol content service request, Processed while waiting for resources to be available.

9. The method according to claim 5, characterized in that when an activated packet data protocol content exists in the general packet radio service support node, receiving a packet data protocol content activation request initiated by a user equipment and carrying a priority service identifier , Prioritizing the packet data protocol content activation request described in step B includes:

The general packet radio service support node determines whether the priority level of the activated packet data protocol content is lower than the priority level of the received packet data protocol content activation request, and if so, deletes the activated low priority packet data protocol content, The resource released in the general packet radio service support node can process a high priority activation request; otherwise, the general packet radio service support node queues the received packet data protocol content service request and waits for processing when resources are available.

10. The method according to claim 1, wherein after step B, the method further comprises:

Cl. The user equipment sends a priority service identifier to the general packet radio service support node. The packet data protocol content activation modification request;

D1. The general packet wireless service support node that receives the modification request for the priority service identifier receives the modification request according to the priority service level of the user equipment.

11. The method according to claim 1, wherein the general packet radio service support node comprises a service general packet radio service support node and a gateway general packet radio service support node;

B32. The gateway general packet radio service support node obtains the user equipment priority service level from the creation request, and performs priority processing on the user equipment according to the priority level.

12. The method according to claim 11, further comprising: C2. After the gateway general packet radio service support node processes the packet data protocol content creation request, the method returns the service to the serving general packet radio service support node. Response to a packet data protocol content creation request;