策略与计费控制规则(Policy and Charging Control Rule-PCC Rule)解析及模板样例

内容

• PCC规则定义
  
• PCC规则运行
  
• PCC规则模板

PCC规则定义

参考文档: 3gpp ts 23.203-be0 条款6.3

策略与计费控制规则(PCC Rule)，即一系列相关信息与一系列相关操作的集合，通常包含3大类信息：

• 服务数据流检查信息
  
• 策略控制信息
  
• 计费相关信息

其中：服务数据流指，利用PCC规则中的业务数据流模板进行检测的分组数据；

PCC规则可以分为两类：

• 动态PCC规则
  
• 静态预定义PCC规则

动态PCC规则通过PCRF的Gx下发给PCEF执行，PCRF可以建立、修改、删除这类规则；预定义PCC规则由PCEF预配,PCRF只能引用这类规则；
PCC规则如下表所示：

注意： 同一个P-CAN会话中PCC规则ID标识符是唯一的；如果动态PCC规则与预定义PCC规则相同，则后者将被前者覆盖(替换)；

PCC业务数据流模板(PCC Service Data Flow Template)可能包含任何数目的业务数据流过滤器(Service Data Flow Filter);

PCC优先顺序(PCC Precedence)定义了在PCEF中进行服务数据流检测时，同一个IP-CAN会话中已激活的PCC规则的执行先后顺序；

特别声明： 其余指标说明请参考相关文档[SR_68-2010_策略和计费控制(PCC)系统技术研究]

PCC规则运行

PCC规则运行主要指：

• 动态PCC规则的创建、激活、修改、去激活、删除等过程
  
• 预定义PCC规则的引用过程

激活

• 激活动态PCC规则，通过Gx接口向PCEF提供PCC规则信息；
  
• 激活预定义的PCC规则，通过Gx接口向PCEF提供关联的PCC规则标识符；
  
• 激活PCRF不知道的预定义PCC规则，PCEF根据运营商策略进行；

激活的PCC规则

• 使用业务数据流模板(PCC Service Data Flow Template)检查业务数据流(Service Data Flow)
  
• 使用业务数据流模板将下行分组数据映射到承载绑定(Binder)的IP-CAN承载
  
• 使用业务数据流模板检查承载绑定的IP-CAN上的上行分组
  
• 记录业务数据流的==使用数据==
  
• 调用与PCC规则相关的策略(如果有)

注意：

• 预定义的PCC规则至少在一个接入点范围内是已知的
  
• 多个IP-CAN会话中，能够为多个IP-CAN承载激活相同的预定义PCC规则
  
• 包含有下行服务数据流过滤器的预定义的PCC规则，只能在每一个IP-CAN会话中激活一次
  
• 只包含有上行服务数据流过滤器的预定义PCC规则，能够在同一个IP-CAN会话的多个IP-CAN承载建立时激活；去激活该类PCC规则时，将从每一个IP-CAN承载中删除该PCC规则
  
• PCRF可以在任何时候修改一个激活的、动态PCC规则
  
• PCRF可以在任何时候通过Gx接口去激活PCEF中活动的PCC规则；并在IP-CAN承载终止时，该承载上的所有活动的PCC规则，都应该不去激活，而不用PCRF显示执行

PCC规则模板

<?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： 规则模板的说明请参考freePCRF手册文档：《Telexir PCRF 3.5.2 Policy Library.pdf》