策略與計費控制規則(Policy and Charging Control Rule-PCC Rule)解析及模板樣例

內容

• PCC規則定義
• PCC規則運行
• PCC規則模板

PCC規則定義

**參考文檔: **3gpp ts 23.203-be0 條款6.3

策略與計費控制規則(PCC Rule)，即一系列相關信息與一系列相關操作的集合，通常包含3大類信息：

• 服務數據流檢查信息
• 策略控制信息
• 計費相關信息

其中：服務數據流指，利用PCC規則中的業務數據流模板進行檢測的分組數據；

PCC規則可以分為兩類：

• 動態PCC規則
• 靜態預定義PCC規則

動態PCC規則通過PCRF的Gx下發給PCEF執行，PCRF可以建立、修改、刪除這類規則；預定義PCC規則由PCEF預配,PCRF只能引用這類規則；
PCC規則如下表所示：

注意： 同一個P-CAN會話中PCC規則ID標識符是唯一的；如果動態PCC規則與預定義PCC規則相同，則后者將被前者覆蓋(替換)；

PCC業務數據流模板(PCC Service Data Flow Template)可能包含任何數目的業務數據流過濾器(Service Data Flow Filter);

PCC優先順序(PCC Precedence)定義了在PCEF中進行服務數據流檢測時，同一個IP-CAN會話中已激活的PCC規則的執行先后順序；

特別聲明： 其余指標說明請參考相關文檔[SR_68-2010_策略和計費控制(PCC)系統技術研究]

PCC規則運行

PCC規則運行主要指：

• 動態PCC規則的創建、激活、修改、去激活、刪除等過程
• 預定義PCC規則的引用過程

激活

• 激活動態PCC規則，通過Gx接口向PCEF提供PCC規則信息；
• 激活預定義的PCC規則，通過Gx接口向PCEF提供關聯的PCC規則標識符；
• 激活PCRF不知道的預定義PCC規則，PCEF根據運營商策略進行；

激活的PCC規則

• 使用業務數據流模板(PCC Service Data Flow Template)檢查業務數據流(Service Data Flow)
• 使用業務數據流模板將下行分組數據映射到承載綁定(Binder)的IP-CAN承載
• 使用業務數據流模板檢查承載綁定的IP-CAN上的上行分組
• 記錄業務數據流的使用數據
• 調用與PCC規則相關的策略(如果有)

注意：

• 預定義的PCC規則至少在一個接入點范圍內是已知的
• 多個IP-CAN會話中，能夠為多個IP-CAN承載激活相同的預定義PCC規則
• 包含有下行服務數據流過濾器的預定義的PCC規則，只能在每一個IP-CAN會話中激活一次
• 只包含有上行服務數據流過濾器的預定義PCC規則，能夠在同一個IP-CAN會話的多個IP-CAN承載建立時激活；去激活該類PCC規則時，將從每一個IP-CAN承載中刪除該PCC規則
• PCRF可以在任何時候修改一個激活的、動態PCC規則
• PCRF可以在任何時候通過Gx接口去激活PCEF中活動的PCC規則；並在IP-CAN承載終止時，該承載上的所有活動的PCC規則，都應該不去激活，而不用PCRF顯示執行

PCC規則模板

<?xml version='1.0' encoding='UTF-8' ?>

<PolicyDef xmlns='http://www.yota.ru/shemes/rules' version='1'>

    <Policy Name="online_charging">
        <Default>
            <AddToCCA>
                <Online Value="ENABLE_ONLINE" />
                <Offline Value="DISABLE_OFFLINE" />
            </AddToCCA>
            <AddToRAR>
                <Online Value="ENABLE_ONLINE" />
                <Offline Value="DISABLE_OFFLINE" />
            </AddToRAR>
        </Default>
    </Policy>

    <Policy Name="failover">
        <Default>
            <AddToCCA_I>
                <CC-Session-Failover Value="FAILOVER_SUPPORTED" />
            </AddToCCA_I>
        </Default>
    </Policy>

    <!-- this is policy for users w/o any policy " -->
    <Policy Name="Default">
        <CiscoSCE PackageInstall="0" Real_Time_Monitor="1"/>
        <Default>
            <QoSes>
                <QoS-Information>
                    <APN-Aggregate-Max-Bitrate-DL Value="2048000"/>
                    <APN-Aggregate-Max-Bitrate-UL Value="2048000"/>
                </QoS-Information>
                <Default-EPS-Bearer-QoS>
                    <QoS-Class-Identifier Value="QCI_6"/>
                    <Allocation-Retention-Priority>
                        <Priority-Level Value="1"/>
                        <Pre-emption-Capability Value="PRE_EMPTION_CAPABILITY_ENABLED"/>
                        <Pre-emption-Vulnerability Value="PRE_EMPTION_VULNERABILITY_DISABLED"/>
                    </Allocation-Retention-Priority>
                </Default-EPS-Bearer-QoS>
            </QoSes>
        </Default>
    </Policy>

    <Policy Name="Limited">
        <CiscoSCE PackageInstall="1" Real_Time_Monitor="1"/>
        <Default>
            <QoSes>
                <QoS-Information>
                    <APN-Aggregate-Max-Bitrate-DL Value="64000"/>
                    <APN-Aggregate-Max-Bitrate-UL Value="64000"/>
                </QoS-Information>
                <Default-EPS-Bearer-QoS>
                    <QoS-Class-Identifier Value="QCI_6"/>
                    <Allocation-Retention-Priority>
                        <Priority-Level Value="1"/>
                        <Pre-emption-Capability Value="PRE_EMPTION_CAPABILITY_ENABLED"/>
                        <Pre-emption-Vulnerability Value="PRE_EMPTION_VULNERABILITY_DISABLED"/>
                    </Allocation-Retention-Priority>
                </Default-EPS-Bearer-QoS>
            </QoSes>
        </Default>
    </Policy>

    <Policy Name="Turbo">
        <CiscoSCE PackageInstall="2" Real_Time_Monitor="1"/>
        <Default>
            <QoSes>
                <QoS-Information>
                    <APN-Aggregate-Max-Bitrate-UL Value="10240000"/>
                    <APN-Aggregate-Max-Bitrate-DL Value="10240000"/>
                </QoS-Information>
                <Default-EPS-Bearer-QoS>
                    <QoS-Class-Identifier Value="QCI_6"/>
                    <Allocation-Retention-Priority>
                        <Priority-Level Value="1"/>
                        <Pre-emption-Capability Value="PRE_EMPTION_CAPABILITY_ENABLED"/>
                        <Pre-emption-Vulnerability Value="PRE_EMPTION_VULNERABILITY_DISABLED"/>
                    </Allocation-Retention-Priority>
                </Default-EPS-Bearer-QoS>
            </QoSes>
            <Rules>
                <Charging-Rule-Base-Name Value="Turbo"/>
                <Charging-Rule-Name Value="Turbo_1"/>
                <Charging-Rule-Name Value="Turbo_2"/>
            </Rules>
        </Default>
    </Policy>

    <Policy Name="VideoTurbo">
        <Default>
            <Rules>
                <Charging-Rule-Definition>
                    <Charging-Rule-Name Value="video_turbo"/>
                    <Service-Identifier Value="5"/>
                    <Rating-Group Value="8"/>
                    <Flow-Description Value="permit in ip from any to 10.2.44.215"/>
                    <Flow-Description Value="permit out ip from 10.2.44.215 to any"/>
                    <Flow-Status Value="ENABLED"/>
                    <QoS-Information>
                        <QoS-Class-Identifier Value="QCI_7"/>
                        <Max-Requested-Bandwidth-UL Value="8192000"/>
                        <Max-Requested-Bandwidth-DL Value="8192000"/>
                        <Guaranteed-Bitrate-UL Value="8192000"/>
                        <Guaranteed-Bitrate-DL Value="8192000"/>
                        <Allocation-Retention-Priority>
                            <Priority-Level Value="1"/>
                            <Pre-emption-Capability Value="PRE_EMPTION_CAPABILITY_DISABLED"/>
                            <Pre-emption-Vulnerability Value="PRE_EMPTION_VULNERABILITY_ENABLED"/>
                        </Allocation-Retention-Priority>
                    </QoS-Information>
                    <Precedence Value="1"/>
                </Charging-Rule-Definition>
            </Rules>
        </Default>
    </Policy>

    <Policy Name="Default_IOT">
        <CiscoSCE PackageInstall="3" Real_Time_Monitor="1"/>
        <Default>
            <QoSes>
                <QoS-Information>
                    <APN-Aggregate-Max-Bitrate-UL Value="2048000"/>
                    <APN-Aggregate-Max-Bitrate-DL Value="2048000"/>
                </QoS-Information>
                <Default-EPS-Bearer-QoS>
                    <QoS-Class-Identifier Value="QCI_6"/>
                    <Allocation-Retention-Priority>
                        <Priority-Level Value="1"/>
                        <Pre-emption-Capability Value="PRE_EMPTION_CAPABILITY_ENABLED"/>
                        <Pre-emption-Vulnerability Value="PRE_EMPTION_VULNERABILITY_DISABLED"/>
                    </Allocation-Retention-Priority>
                </Default-EPS-Bearer-QoS>
            </QoSes>
            <Rules>
                <Charging-Rule-Definition>
                    <Charging-Rule-Name Value="iot"/>
                    <Service-Identifier Value="211"/>
                    <Rating-Group Value="211"/>
                    <Flow-Description Value="permit in ip from any to any"/>
                    <Flow-Description Value="permit out ip from any to any"/>
                    <Reporting-Level Value="SERVICE_IDENTIFIER_LEVEL"/>
                    <Metering-Method Value="VOLUME"/>
                    <Online Value="ENABLE_ONLINE"/>
                    <Offline Value="DISABLE_OFFLINE"/>
                    <Flow-Status Value="ENABLED"/>
                    <QoS-Information>
                        <QoS-Class-Identifier Value="QCI_6"/>
                        <Max-Requested-Bandwidth-UL Value="2048000"/>
                        <Max-Requested-Bandwidth-DL Value="2048000"/>
                        <Guaranteed-Bitrate-UL Value="2048000"/>
                        <Guaranteed-Bitrate-DL Value="2048000"/>
                        <Allocation-Retention-Priority>
                            <Priority-Level Value="6"/>
                            <Pre-emption-Capability Value="PRE_EMPTION_CAPABILITY_DISABLED"/>
                            <Pre-emption-Vulnerability Value="PRE_EMPTION_VULNERABILITY_DISABLED"/>
                        </Allocation-Retention-Priority>
                    </QoS-Information>
                    <Precedence Value="0"/>
                </Charging-Rule-Definition>
            </Rules>
        </Default>
    </Policy>

    <HuaweiAccums>
        <!-- This is special accum used only for per location usage monitoring -->
        <Accum Name="CONGESTION">
            <Monitoring-Key Name="congestion" Direction="Downlink" Delta="1000000" Monitor-Level="SESSION" />
        </Accum>
    </HuaweiAccums>

    <DefaultAccums>
        <!-- please don't delete this accum. It used for perfomance tests -->
        <Accum Name="perf_accum_test">
            <Monitoring-Key Name="test_mkey" Direction="Downlink" Delta="1000000"/>
        </Accum>
        <Accum Name="perf_accum_D">
            <Monitoring-Key Name="test_mkey" Direction="Uplink" Delta="500000"/>
        </Accum>
        <Accum Name="perf_accum_M">
            <Monitoring-Key Name="test_mkey2" Direction="Both" Delta="100000"/>
        </Accum>
        <Accum Name="general">
            <Monitoring-Key Name="up_mkey" Direction="Uplink" Delta="1000000"/>
            <Monitoring-Key Name="down_mkey" Direction="Downlink" Delta="1000000"/>
        </Accum>
        <Accum Name="general_up">
            <Monitoring-Key Name="general_mkey" Direction="Uplink" Delta="1000000"/>
        </Accum>
        <!-- please don't delete this accum. It used in FreePCRF image -->
        <Accum Name="general_down">
            <Monitoring-Key Name="general_mkey" Direction="Downlink" Delta="1000000"/>
        </Accum>
    </DefaultAccums>

    <ProceraAccums>
        <Accum Name="perf_accum_test">
            <Monitoring-Key Name="test_mkey" Direction="Downlink" Delta="1000000"/>
        </Accum>
    </ProceraAccums>
</PolicyDef>

注： 規則模板的說明請參考freePCRF手冊文檔：《Telexir PCRF 3.5.2 Policy Library.pdf》