PCEF PCRF Policy Charging Control Rule Binding

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Solution Overview

Problem

In the 3GPP R8 policy and charging control technology, the inconsistency of ARP parameters for PCC rules on bearers leads to failure in resource allocation requests, as the PCRF cannot bind PCC rules with different ARP parameters to the same bearer, resulting in unsuccessful resource allocation for UE in designated bearers.

Innovation Solution

A method and apparatus that involve receiving a resource allocation request message, sending ARP information of the designated bearer to the PCRF, and performing bearer binding according to the QoS of the authorized PCC rule, ensuring the PCRF acquires the necessary ARP information to bind the PCC rule to the designated bearer, allowing successful resource allocation for UE.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If the PCRF generates a new PCC rule with ARP parameter without acquiring the bearer ID or existing PCC rule on the bearer, then the PCC rule can be generated, but the ARP parameter may be different from the ARP parameters of other PCC rules on the same bearer, causing binding failure

Engineering Contradiction:

ImprovePCC rule generation speedVSAvoidARP parameter consistency

Core Design Contradiction:

ProductivityVSReliability

Solution Approach 1:

The PCEF performs preliminary action by acquiring the bearer ID and existing PCC rules on the bearer before generating the new PCC rule. This preliminary acquisition of ARP information allows the PCRF to generate the PCC rule with consistent ARP parameter, preventing binding failure while maintaining efficient rule generation

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system implements feedback mechanism where the PCEF acquires ARP information from existing PCC rules on the bearer and feeds back to the PCRF. The PCRF uses this feedback information to generate the new PCC rule with matching ARP parameter, ensuring consistency across all PCC rules on the same bearer

Inventive Principle:

Principle #23Feedback

2Ease of operation

If the PGW binds PCC rules to the same bearer, then resource allocation can be performed, but the binding fails when ARP parameters are inconsistent

Engineering Contradiction:

ImproveResource allocation capabilityVSAvoidARP parameter matching accuracy

Core Design Contradiction:

Ease of operationVSManufacturing precision

Solution Approach 1:

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system changes the parameter generation approach by having the PCRF acquire ARP information from existing PCC rules and use it to generate the new PCC rule's ARP parameter. This parameter adjustment ensures that all PCC rules on the same bearer have consistent ARP parameters, enabling successful binding

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUS8958322B2Method, apparatus and system for authorizing policy and charging control rule

Publication Date: 2015.02.17 HUAWEI TECH CO LTD

AI summary

A method, an apparatus and a system for authorizing a policy and charging control rule are provided. The method includes: receiving a resource allocation request message, where the resource allocation request message indicates that a resource is allocated on a designated bearer; sending ARP information of the designated bearer to a PCRF; and receiving QoS of PCC rule authorized by the PCRF according to the ARP information of the designated bearer, and performing bearer binding according to the QoS of the authorized PCC rule. In the present invention, the PCRF acquires the ARP information of the designated bearer, so that the PCC rule authorized by the PCRF can be bound to the designated bearer, and the user equipment on the designated bearer can be successfully allocated the resource.