Real-Time Location-based Policy Control

4/15/2014 SGSN9810 Product Documentation

http://support.huawei.com/hedex/hdx.do?lib=SE000069674231184644&v=26&tocLib=SE000069674231184644&tocV=26&id=cn_20_0_db10&tocURL=resources% 1/4

WSFD-900084 Real-time location-based policy control

Definition

Benefits

Availability

Impact on the System

Application Limitations

Interaction with Other Features

Application Scenario

Implementation Principle

Specifications

Standard Compliance

Release History

Related Topics

Definition

Policy control based on real-time location is a feature that enables the policy and charging rules function (PCRF) to implement policy control and update based on theconfigured event trigger and information about the subscriber location change. The GGSN receives information about the subscriber location change from the serving GPRSsupport node (SGSN) and then reports the information to the PCRF in real time. Then, the PCRF delivers and updates control policies based on the location changeinformation.

Benefits

For... Benefits

Carriers This feature helps carriers improve user experience and satisfaction rate in specified areas, and reduce area

congestion and bandwidth waste. Carriers can implement differentiated charging and quality of service

(QoS) control for subscribers entering the area based on subscribers or service types, ensuring the overall

service access rate of subscribers in this area.

Subscribers This feature enables subscribers to sense differentiated charging and QoS in different areas.

Availability

Involved NEs

Table 1 lists the network elements (NEs) involved in implementing policy control based on real-time location.

Table 1 NEs involved in implementing policy control based on real-time location

UE RNC SGSN GGSN PCRF M2000

- - -

NOTE:

In table, the sign indicates that the NE is required, and - indicates that the NE is not required.

Functions of the NEs

Table 2 Functions of the NEs involved in implementing policy control based on real-time location

NE Function Description

SGSN Reports the location update capability to the GGSN and instructs the radio network

controller/base station subsystem (RNC/BSC) to enable the location reporting capability.

Reports location information to the GGSN.

GGSN Reports location information to the PCRF.

Implements the policies delivered by the PCRF.

PCRF Delivers policies based on location information.

Supporting Versions

Table 3 lists the versions of Huawei products that support policy control based on real-time location.

Table 3 Versions of Huawei products that support policy control based on real-time location

Product Earliest Supporting Version



SGSN9810 V900R010C02

GGSN9811 V900R008C01

UPCC V300R002C06

Requirement for the License

This feature is an optional function of the SGSN9810. A license is required for this feature.

This feature is an optional function of the GGSN9811. A license is required for this feature.

This feature is an optional function of the UPCC. A license for ServiceZone based Gx dynamic policy control is required this feature.

Impact on the System

Enabling this feature will increase the number of signaling messages on the Gn/Gp and Gx interfaces and degrade the system performance. Therefore, this feature should beenabled for specific subscribers and areas instead of all subscribers and areas.

Application Limitations

This feature is supported in GTPv1, but not GTPv0.

The MS Info Change Reporting support indication extension header is carried in all Packet Data Protocol (PDP) context activation and update messages sent by

the SGSN. If the action information element (IE) is not carried in the response message returned by the GGSN, the SGSN still adopts the action previously set onit.

Interaction with Other Features

Table 4 describes the interaction between policy control based on real-time location and other features.

Table 4 Interaction between policy control based on real-time location and other features

Feature Interaction

Gx interface based control policy delivery Gx interface based control policy delivery must be enabled on the GGSN9811 before policy control based

on real-time location is available.

ServiceZone based Gx dynamic policy control ServiceZone based Gx dynamic policy control must be enabled on the UPCC before policy control based on

real-time location is available.

Application Scenario

This feature is applicable to the scenario where the GGSN implements differentiated charging and QoS control based on subscribers or service types in specified areas.

Implementation Principle

System Implementation

The Gx interface is used for interworking between the PCRF and GGSN. The PCRF delivers charging policies by using the Gx interface and then the GGSN implements thepolicies. The Gn/Gp interface is used for interworking between the SGSN and GGSN. The SGSN sends PDP context activation and deactivation requests, PDP contextupdates, and subscriber location information to the GGSN by using the Gn/Gp interface. Figure 1 shows the networking diagram.

Figure 1 Networking diagram

Service Flow

Figure 2 shows the service flow.

Figure 2 Service flowchart



1. A user equipment (UE) sends an Activate PDP Context Request message to the SGSN.

2. The SGSN sends a Create PDP Context Request message to the GGSN. The message carries the MS Info Change Reporting support indication extensionheader, indicating that the SGSN is able to report location changes.

3. The GGSN sends a CCR-I message to the PCRF. The PCRF determines whether or not the subscriber has subscribed to a relevant location policy. If yes, thePCRF delivers the policy to the GGSN. The CCA-I message carries both the RAI_CHANGE and USER_LOCATION_CHANGE event triggers or one of thetwo event triggers.

4. The GGSN returns a Create PDP Context Response message. The message carries the MS Info Change Reporting Action IE instructing the SGSN to inform theGGSN of the location change.

5. The SGSN establishes a radio access bearer (RAB) connection with the UE. Then, the SGSN sends a Location Reporting Control message carrying ServiceArea Code and Reporting Type to the RNC. Reporting Type specifies the granularity of reporting UE location, including the location reporting cycle.

6. The SGSN sends an Active PDP Context Accept message to the UE, completing the PDP context activation.

7. If the RAI or location of a subscriber changes, the UE initiates a location update. Then, the SGSN sends an MS Info Change Notification Request messagecarrying the IMSI/RAT Type and User Location Information IEs to the GGSN.

8. When processing the User Location Information IE, the GGSN executes both the RAI_CHANGE and USER_LOCATION_CHANGE event triggers, or eitherof them. Then, the GGSN sends a CCR-U message to the PCRF. The PCRF determines whether to update the policy based on the changed location informationand returns a CCA-U message to the GGSN. The GGSN processes the CCA-U message.

9. The GGSN processes the MS Info Change Notification Request message, and then returns an MS Info Change Notification Response message to the SGSN.

10. The GGSN sends an Update PDP Context Request message to the SGSN according to the updated policy. Then, the SGSN, RNC, and UE perform updateoperations accordingly.

NOTE:

If the GGSN finds that the location information in the Update PDP Context Request message sent by the SGSN has changed, the GGSN can still report thechange to the PCRF by using the RAI_CHANGE or USER_LOCATION_CHANGE event trigger.

The MS Info Change Reporting support indication extension header is carried in all the PDP context activation and update messages sent by the SGSN.

The PCRF usually delivers either the RAI_CHANGE or the USER_LOCATION_CHANGE event trigger.

Specifications

No specification is involved.

Standard Compliance

Table 5 lists the standards with which policy control based on real-time location complies.

Table 5 Standards with which policy control based on real-time location



Very Poor Very Good

Your contact information:

All comments of the libAll Comments

Table 5 Standards with which policy control based on real-time location

Category Name

3GPP 3GPP 29.212, Policy and Charging Control over Gx reference point

3GPP 29060, General Packet Radio Service (GPRS); GPRS Tunneling Protocol (GTP) across the Gn and

Gp interface

3GPP 32299, Telecommunication management; Charging management; Diameter charging applications

3GPP 32298, Telecommunication management; Charging management; Charging Data Record (CDR)

parameter description

3GPP 25413, UTRAN Iu interface Radio Access Network Application Part (RANAP) signaling

Release History

Table 6 describes the release history of policy control based on real-time location.

Table 6 Release history of policy control based on real-time location

Feature Version Product Version Details

WSFD-900084,1

WGFD-480300,1

SGSN9810 V900R010C02

GGSN9811 V900R008C01

This feature is released for the first time.

Related Topics

Feature Deployment

Configuring the Policy Control Based on the Real-time Location Feature

Commissioning the Policy Control Based on the Real-time Location Feature

Parent topic: Optional Feature

Huawei Proprietary and ConfidentialCopyright Huawei Technologies Co., Ltd.

Thanks for your comments

Rating:

This document solved your problem: Yes No Just Browsing

Feedback:

Submit

Please provide your contact information for us to reach you quickly:

Contact person: Email: Tel: Modify/Refresh Contact Information

Recent Comments and Feedback

Real-Time Location-based Policy Control

Documents

Transcript of Real-Time Location-based Policy Control