CN1988722A - Method for controling tactics under roaming state - Google Patents

Method for controling tactics under roaming state Download PDF

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Publication number
CN1988722A
CN1988722A CN 200510136924 CN200510136924A CN1988722A CN 1988722 A CN1988722 A CN 1988722A CN 200510136924 CN200510136924 CN 200510136924 CN 200510136924 A CN200510136924 A CN 200510136924A CN 1988722 A CN1988722 A CN 1988722A
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pcrf
cscf
message
network
address
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CN 200510136924
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Chinese (zh)
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孙春迎
李小强
朱彦民
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北京三星通信技术研究有限公司
三星电子株式会社
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATIONS NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/24Accounting or billing
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M15/00Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H04M15/46Real-time negotiation between users and providers or operators
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M15/00Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H04M15/57Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP for integrated multimedia messaging subsystem [IMS]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M15/00Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H04M15/66Policy and charging system
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M15/00Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H04M15/80Rating or billing plans; Tariff determination aspects
    • H04M15/8038Roaming or handoff
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M15/00Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H04M15/81Dynamic pricing, e.g. change of tariff during call
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M2215/00Metering arrangements; Time controlling arrangements; Time indicating arrangements
    • H04M2215/01Details of billing arrangements
    • H04M2215/0112Dynamic pricing, e.g. change of tariff during call
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M2215/00Metering arrangements; Time controlling arrangements; Time indicating arrangements
    • H04M2215/20Technology dependant metering
    • H04M2215/2026Wireless network, e.g. GSM, PCS, TACS
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M2215/00Metering arrangements; Time controlling arrangements; Time indicating arrangements
    • H04M2215/20Technology dependant metering
    • H04M2215/204UMTS; GPRS
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M2215/00Metering arrangements; Time controlling arrangements; Time indicating arrangements
    • H04M2215/20Technology dependant metering
    • H04M2215/208IMS, i.e. Integrated Multimedia messaging Subsystem
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M2215/00Metering arrangements; Time controlling arrangements; Time indicating arrangements
    • H04M2215/56On line or real-time flexible agreements between service providers and telecoms operators
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M2215/00Metering arrangements; Time controlling arrangements; Time indicating arrangements
    • H04M2215/74Rating aspects, e.g. rating parameters or tariff determination apects
    • H04M2215/7442Roaming

Abstract

A control strategy in the state of roaming includes steps: visiting PCRF of network to get the strategy and billing control rules from PCRF of network attributed by user equipment, visiting PCRF to combing the strategies and billing control rules from network and from transmission to generate a new one, visiting PCRF to send the new one of b) to the gateway.

Description

在漫游状态下进行策略控制的方法 Method of policy control in roaming status

技术领域 FIELD

本发明涉及第三代移动通信,特别涉及在通用移动通信系统(以下简称UMTS)的基础上进行演进的移动通信系统(以下简称E-UMTS). The present invention relates to third generation mobile communications, and particularly relates to a mobile communication system based on Evolved Universal Mobile Telecommunications System (hereinafter referred to as UMTS), on (hereinafter referred to as E-UMTS).

背景技术 Background technique

为了支持E-UMTS,很多公司都提出了自己的体系结构,其中关于用户设备在漫游状态下的体系结构以图1的例子进行说明。 In order to support the E-UMTS, many companies have made their architecture, wherein the architecture on user equipment in the roaming state in the example of FIG. 1 will be described.

图1中给出了用户设备在Internet多媒体子系统(以下简称IMS)下漫游的结构图。 Figure 1 shows the block diagram of a user equipment roaming in the Internet Multimedia Subsystem (hereinafter referred to as IMS).

用户设备在拜访网络的时候,开机之后会先与拜访网络的网关通信,进行登记注册,拜访网络的网关从用户设备的归属用户服务器(以下简称HSS)处得到用户的登记信息,例如允许漫游到的位置信息,允许提供的业务类型等。 The user equipment when the visited network, then power will first gateway communication visited network and performs registration, visited network gateway are registered user information from a home subscriber server of the user equipment (hereinafter referred to as HSS) at, for example, allowed to roam to position information, allowing the service type provided and the like. 如果用户设备被允许在归属网络接受服务,那么拜访网络就会接受其注册登记请求,保存用户设备的注册信息。 If the user equipment is allowed to receive services in the home network, the visited network will accept its registration request, save the registration information of the user equipment. 当用户设备完成在拜访网络的位置注册后,获得拜访网络给其分配的IP地址,那么用户设备就进行IMS注册,使得用户设备的S-CSCF能够记录用户设备所处的位置,及其IP地址。 When the user equipment after completion of the position registration visited network, the visited network to obtain the IP address assigned, the user equipment on the IMS registration, the user equipment such that the S-CSCF is capable of recording the location of the user equipment is located, and IP address . P-CSCF是用户设备在拜访网络中接入IMS的第一个入口点。 P-CSCF is the first point of entry in the user equipment to access the IMS visited network. 通过P-CSCF找到用户设备的S-CSCF,从而使得用户设备的位置能被S-CSCF准确记录。 P-CSCF by S-CSCF to find the user equipment, so that the position of the user equipment S-CSCF can be accurately recorded.

策略和计费规则功能实体(以下简称PCRF)是用来控制用户设备的服务质量及计费规则的一个实体。 Policy and Charging Rules Function (hereinafter PCRF) entity is used to control a quality of service and charging rules of user equipment. 该实体从CSCF处获得应用层面定义的业务属性,通过该业务属性得出用户设备接收该业务所需要的或者所允许的服务质量,及该业务的计费规则。 The entity obtains service attributes defined in the application layer from the CSCF receives the required service or quality of service allowed, the service and charging rules derived by the user equipment the service attribute. 服务质量包括譬如数据速率、数据的业务数据包的错误率、业务是实时的还是非实时的等等,具体的定义可以参见3GPP TS 23.107和23.207。 Such quality of service comprises a data rate, an error rate of data traffic packets, traffic is real time or non-real time, etc., can be found in the definition of specific 3GPP TS 23.107 and 23.207. 计费规则可能描述对该业务计费的类型(按时间还是按流量等)、在线计费还是离线计费、计费的单位等等,具体的定义可以参见3GPP TS 23.125。 Charging rules may describe the type of service charging (by traffic or by time, etc.), online charging or offline charging, the charging unit, etc., can be found in specific definition 3GPP TS 23.125. 这些服务质量及计费策略的实施不是在PCRF完成的,而是在网关执行的。 The implementation of these quality of service and charging policies in the PCRF is not complete, but executed in the gateway. 在图1中描述的体系结构中,用户归属网络的PCRF可能根据业务特性或/和用户的签约数据或/和运营商自己的策略产生针对该用户设备的某个业务的策略和计费规则,而拜访网络的PCRF也可能根据拜访网络的运营商所制定的本地策略及用户的签约数据决定该用户设备的策略和计费规则。 Architecture depicted in FIG. 1, the user home network the PCRF policy and charging rules may be generated for a certain service the user equipment according to the traffic characteristics and / or the user subscription data and / or operator's own policies, the visited network PCRF may decide policy and charging rules of the user equipment according to local policy and users of the visited network operators developed by subscription data. 事实上,网关要同时满足这两个PCRF所制定的策略和计费规则。 In fact, the gateway to the PCRF satisfy both the policy and charging rules.

那么这些策略和计费规则是如何传递网关的及使用的,就是本发明所期待要解决的问题。 So these policy and charging rules is how to transfer and use of the gateway, the present invention is to solve the problem of expectations.

网关从代理PCRF处得到测略和计费规则的方法可以参见图2。 Gateway obtained measurement strategy and charging rules from the PCRF proxy method may see FIG.

用户设备发送IMS域的消息201邀请给被叫,被叫可以是另外一个用户设备,固定电话,也可以是应用服务器等。 Message sent by the user in the IMS domain 201 invitation to the called party may be another user equipment, a fixed telephone, and the like may also be an application server. 该消息中包含被叫的地址,以会话发起协议SIP定义的统一定位表示URI来表示,对请求会话的业务描述,例如编解码类型、服务质量保证等参数。 The message contains the address of the called party to a session initiation protocol (SIP) uniform positioning URI defined to represent representation, a request for a session service description, such as codec type, service quality assurance parameters. 对于具体该消息中可以包含哪些参数,可以参见3GPP TS 24.228。 For the specific parameters which may be included in the message, can be found in 3GPP TS 24.228. 当P-CSCF收到从被叫端的响应消息例如202 200 OK或者183会话进程中,因为该消息中包含了业务的信息,例如传递给业务可能需要的带宽,业务类型等。 When the P-CSCF receives a response message from the called terminal, for example, 202 200 OK or 183 Session Progress, since the message contains information services, such as bandwidth, service type to the service may need to transfer the like. P-CSCF将这些信息发送给PCRF203,该消息中包含对媒体流的描述,及媒体流的分组信息等信息。 P-CSCF sends the information to PCRF203, the message contains a description of the media stream, the media stream information and packet information. 根据这些信息,PCRF可以产生对于该用户设备的的认证令牌,用来对该用户设备进行认证。 Based on this information, the PCRF may generate an authentication token for that user device, used to authenticate the user equipment. 在204验证响应中,PCRF会返回其产生的认证令牌。 204 authentication response, PCRF returns its generated authentication token. 收到认证令牌后,P-CSCF会向用户设备发送205 200 OK消息。 After receiving the authentication token, P-CSCF 205 200 OK message is sent to the user equipment. 用户设备会根据205中消息的类型来确认是否要建立无线承载。 The device user to confirm whether to establish a radio bearer based on the type 205 of the message. 如果需要,用户设备与网关(即GGSN)进行通信,建立无线承载及网络承载。 If desired, the user equipment and the gateway (i.e. GGSN) communication, radio bearer and bearer networks. 具体的建立方式因为与本发明没有直接关系,在此不作赘述。 DETAILED established manner as not directly related to the present invention, not described herein. 当网关GGSN收到用户平面建立的请求消息后,会查看该消息中携带的认证令牌,通过认证令牌知道需要去向哪个PCRF请求策略和计费规则,然后GGSN向PCRF发送请求消息207,该消息中包括认证信息,绑定信息等。 After receiving the request message gateway GGSN user plane established, will see the message carrying the authentication token by authentication tokens need to know the whereabouts of which PCRF Policy and Charging Rules Request, GGSN then sends a request message to the PCRF 207, the message includes authentication information, binding information. 收到该消息后,PCRF会对该消息中的认证信息进行确认208,如果成功,那么PCRF就告知网关授权的服务质量、针对上下行数据的门控能力等。 After receiving the message, PCRF 208 will confirm the authentication information in the message, if successful, will inform the PCRF authorized gateway service quality, and so on down the line for gating capability data. 网关收到208之后,发现所请求的服务质量及对用户设备的认证已经完成,就在无线接口和网络中建立承载,从而使得用户设备可以进行业务的发送和接收。 After receiving gateway 208, requested quality of service discovery and authentication of the user equipment has been completed, and establishes a bearer in a radio interface in the network, so that the user equipment can transmit and receive traffic.

图2中的PCRF一般指的是与网关相连的策略和计费规则控制实体,但是在图1的体系结构中,它也可以是在归属网络中的策略和计费规则控制实体,该实体从S-CSCF处接收业务信息。 FIG 2 PCRF refers generally connected to the gateway policy and charging control rule entity, in the architecture of Figure 1, it can also be in the home network policy and charging rules control entity, the entity from S-CSCF receives the service information.

存在的问题是拜访网络的代理PCRF如何能从归属网络的归属PCRF获得策略和计费规则。 The problem is how proxy PCRF of the visited network from a home home network PCRF to obtain policy and charging rules. 现在的系统中还不存在对于该方案的解决方案。 The current system does not yet exist solutions to the program.

发明内容 SUMMARY

本发明的目的是提供一种在漫游状态下进行策略控制的方法,从而使得网络对用户的服务质量和计费规则能够更好的进行控制。 Object of the present invention is to provide a method of policy control in a roaming state, so that the network user and charging rules quality of service can be better controlled.

为实现上述目的,一种在漫游状态下进行策略控制的方法,包括步骤:a)拜访网络的PCRF从用户设备的归属网络的PCRF得到策略和计费控制规则;b)拜访网络的PCRF将拜访网络产生的策略和计费控制规则与归属网络的PCRF的传输过来的策略和计费控制规则进行合并,生成新的策略和计费控制规则;c)拜访网络的PCRF将b)中产生的新的的策略和计费控制规则发送给网关。 To achieve the above object, a method carried out in the roaming policy control, comprising the steps of: a) the visited network PCRF to obtain policy control and charging rules from the PCRF to the home network of the user equipment; b) the visited network visited PCRF transport network PCRF generates policy and charging control rule of the home network over the policy and charging control rule are combined to generate a new policy and charging control rule; c) PCRF in the visited network will produce b) is a new the policy and charging control rule sent to the gateway.

本发明能够实现归属网络与拜访网络同时对用户的业务进行策略控制和计费规则控制的目的,从而更有效地利用网络资源,对用户的业务进行差别服务等。 The present invention enables a home network and a visited network while user traffic for the purpose of policy control and charging control rule, and thus more efficient use of network resources, user services for different services.

附图说明 BRIEF DESCRIPTION

图1是用户设备在漫游状态下的体系结构;图2是策略和计费规则获取方法;图3是本发明的第一个实施例;图4是本发明的第二个实施例;图5是UE获得H-PCRF地址的信令过程; FIG 1 is the architecture in the roaming user equipment state; FIG. 2 is a policy and charging rule acquisition method; FIG. 3 is a first embodiment of the present invention; FIG. 4 is a second embodiment of the present invention; Figure 5 UE signaling procedure is to obtain H-PCRF address;

图6是本发明的第三实施例;图7是UE的行为动作图;图8是H-PCRF的动作行为图;图9是P-PCRF的动作说明图;图10是S-CSCF的动作说明图;图11是P-CSCF的动作说明图。 FIG 6 is a third embodiment of the present invention; FIG. 7 is an operation of the UE behavior; FIG. 8 is an H-PCRF acts operation; Figure 9 is a P-PCRF to explain the operation; FIG. 10 is the operation of an S-CSCF DESCRIPTION oF FIG.; FIG. 11 is a P-CSCF of the operation described in FIG.

具体实施方式 detailed description

拜访网络的PCRF处理策略和计费规则的可以如下所示:拜访PCRF和归属网络PCRF定义的策略和计费规则体现的属性是一致。 Visited PCRF Policy and Charging Rules processing network may be as follows: The V-PCRF and the home network PCRF policy and charging rules defined reflect consistent properties.

例如策略指的是所允许的业务类型,数据速率,数据包的错误率,业务是实时的还是非实时的,详细参数可以参见3GPP TS 23.207和23.125。 For example, refers to a strategy allowed service type, rate of data error rate, packet traffic is real-time or non-real time and the parameters can be found in 3GPP TS 23.207 and 23.125. 拜访网络的PCRF能够将这些策略进行合并,合并的规则可以是实现相关的,但普遍的原则是选择最低的服务质量策略和最严格的计费规则来进行。 PCRF of the visited network can apply these policies to merge, merge rule may be implementation-dependent, but the general principle is to choose the lowest quality of service policy and the most stringent accounting rules to carry out. 比如说如果业务类型一个是语音类型,另外一个是流媒体,那么就要选择最终的业务类型为流媒体;如果数据速率一个是32kbps,一个是64Kbps,那么就选择32kbps。 For example, if the service type is a voice type, other streaming media, it is necessary to choose the final streaming media service type; if a data rate is 32kbps, one 64Kbps, then select 32kbps. 当然也存在拜访网络不对用户设备的业务进行特殊的策略控制和计费规则控制的情况,这样的话,拜访网络就使用从归属网络传输过来的策略和计费规则。 Of course, there are not visited network user equipment business were special circumstances of policy control and charging control rule, this is the case, the visited network to the home network using the transmission came from the policy and charging rules. 相反地,当然也存在归属网络不对用户设备的业务进行特殊的策略控制和计费规则控制的情况,这样的话,拜访网络就使用拜访网络自己定义的策略和计费规则。 Conversely, of course, there is not user home network equipment business were special circumstances of policy control and charging control rule, so, on the use of the visited network visited network policy and charging rules you define.

图3描述了本发明的第一实施例。 3 depicts a first embodiment of the present invention. 用户设备在注册过程中得到归属网络的PCRF的地址信息,该过程将在图5中进行描述。 The user equipment resulting in the home network PCRF address information registration process, the process will be described in FIG. 5. 当用户设备进行会话呼叫时,向P-CSCF发送301邀请消息,该消息中包含被叫的地址信息,呼叫所希望建立的会话参数,还有归属PCRF的地址。 When the user equipment call session, sent to P-CSCF 301 invitation message, the message includes address information of the called party, the establishment of session parameters, as well as the address of the home PCRF desired call. P-CSCF将邀请消息处理后,通过用户的签约网络信息,知道将消息发送给哪个S-CSCF302。 After the P-CSCF an INVITE message processing, network user subscription information, send a message to know which S-CSCF302. P-CSCF对邀请消息进行处理,保存被叫标识,主叫标识,路由信息等参数。 P-CSCF processes the invitation message, the called party identification storage, caller identification, routing information and other parameters. S-CSCF收到302邀请消息后,将被叫的地址、主叫地址、路由信息及消息的序列号等保存下来,然后发送303邀请消息给被叫的S-CSCF。 S-CSCF 302 receives the INVITE message, the called party address, source address, routing information, and the serial number saved message, then sends 303 the INVITE message to the called S-CSCF. 在P-CSCF寻找主叫的S-CSCF过程中,可能会有I-CSCF的参与,但这与现有技术是一样的,因此不在此赘述。 Looking at the P-CSCF of the calling process in S-CSCF, I-CSCF may be involved in, but it is the same as the prior art, therefore not described herein. S-CSCF根据被叫用户的表示找到被叫的S-CSCF,具体方法参见3GPP TS 23.228。 Find the S-CSCF according to the S-CSCF of the called party indicates the called user, the specific method, see 3GPP TS 23.228. 之后如果主叫的S-CSCF收到被叫侧返回的304 200 OK消息或者183会话进行中消息后,因为这两条消息中包括对于会话的描述参数,因此S-CSCF将认证授权请求发送给H-PCRF305,从H-PCRF处获得对于用户设备的认证令牌306。 If the caller after the S-CSCF receives 304 200 OK message returned by the called side or the session message 183, since these two parameters message includes a description for the session, the S-CSCF therefore requests the certificate authority to H-PCRF305, obtain the authentication token 306 for the user equipment from the H-PCRF. 认证授权请求消息中包含对于媒体流带宽的描述等。 Authentication and authorization request message contains a description of the media stream bandwidth and the like. S-CSCF选择H-PCRF可能是根据用户设备的IP地址选择的,也可能从可用的PCRF中随即选择。 S-CSCF selected H-PCRF may be selected according to the IP address of the user equipment, may then select from the available PCRF. 之后,S-CSCF就向P-CSCF发送200 OK消息或者183会话进行中消息307,该消息中包含主被叫信息、路由信息,会话参数描述等。 After, S-CSCF sends to the P-CSCF 200 OK message 183 or message 307 session in progress, the message includes the calling and called information, routing information, session parameters description. P-CSCF向P-PCRF发送308认证授权请求,该消息除包含对媒体流的描述,及媒体流的分组信息之外,还包含H-PCRF的地址信息。 P-CSCF 308 transmits an authorization request to the authentication P-PCRF, in addition to the message it contains a description of the media stream, and the packet information of the media stream, but also contain address information of the H-PCRF. 该地址信息应该是通过域名解析器能够解析出H-PCRF的IP地址的。 The address information should be able to resolve the IP address by the H-PCRF of the resolver. 当P-PCRF解析出H-PCRF的IP地址后,就发送309策略请求消息给H-PCRF。 When the P-PCRF resolve the IP address of the H-PCRF, the policy request message 309 is sent to the H-PCRF. 该消息中要包含用户标识,用户的IP地址等信息。 The message to be included in the user identification information, the user's IP address. H-PCRF知道用户设备的标识后,就将用户设备适用的策略和计费规则传递给P-PCRF,这些参数包含在310策略下载消息中。 After the H-PCRF knows the identity of the user equipment, the user equipment will apply policy and charging rules to a transmitted P-PCRF, these parameters are included in the message 310 Strategy. 该消息还应该包括公共用户标识等信息。 The message should also include information such as Public User Identity. 当P-PCRF收到310后,就将H-PCRF传输过来到策略和计费规则与本地网络产生的策略和计费规则进行合并,然后就向P-CSCF返回认证授权回答消息,该消息可能包含P-CSCF对用户的认证令牌等信息。 When the P-PCRF 310 is received, it will be transmitted by H-PCRF policy and charging rules to the policy and charging rules to generate the local network are combined, and then returns the reply message to the certificate authority P-CSCF, the message may P-CSCF information comprising user authentication tokens. 合并的规则如前所述,也可以由拜访网络决定如何进行合并。 As previously mentioned merger rules can also decide how to merge the visited network. P-CSCF知道P-PCRF已经得到策略和计费规则后,就向用户设备发送312 200 OK或者183会话进行中消息,消息中包含主被叫标识、会话参数描述,可能还包含认证令牌等信息。 After the P-CSCF has been known P-PCRF policy and charging rules, or sends 312 200 OK 183 to the user equipment in a session message, which includes a main called ID, the session description parameters, and the like may also contain the authentication token information. 用户设备收到200 OK之后就建立用户平面来传输数据,该用户平面的建立包括无线承载的建立和网络承载的建立,其具体建立方式与本发明没有关系,因此在此不作赘述。 After the user device receives the 200 OK to establish a user plane for transmitting data, including the establishment of the user plane radio bearer Establishment and a bearer network, the specific embodiment of the present invention is not to establish the relationship, and therefore not described herein. 当网关收到要建立用户平面的信息后,向P-PCRF请求用户设备进行会话所需要的策略和计费规则,该消息314中包含用户设备的标识,可选的包含认证令牌等信息。 When the gateway receives information of the user plane is to be established, the requesting user equipment sessions required policy and charging rules to the P-PCRF, the message includes an identifier of the user device 314, an optional information such as authentication token contains. P-PCRF向网关返回315消息,该消息中包含应用于用户设备该业务的策略和计费规则,网关将这些策略应用到用户设备的业务上,向用户确认用户平面的建立316。 P-PCRF returns a message gateway 315, which message contains the user equipment applies the service policy and charging rules, the gateway will apply these policies to the service user apparatus, confirm the establishment of the user plane to the user 316.

图4描述的是本发明的第二实施例。 Described in FIG. 4 is a second embodiment of the present invention. 当用户设备想要进行会话呼叫时,向P-CSCF发送401邀请消息,该消息中包含主叫的地址信息,被叫的地址信息,呼叫所希望建立的会话参数等信息。 When a user equipment wants to perform call session, to the P-CSCF 401 transmits an invite message, which message includes the address information of the calling and called party address information, the call session information such as the establishment of the desired parameters. P-CSCF将邀请消息处理后,发送给S-CSCF402,P-CSCF会将选择的P-PCRF的地址包含在该消息中,传送给S-CSCF。 After the P-CSCF will process the invite message is sent to the S-CSCF402, P-PCRF address of P-CSCF selection will be included in the message, transmitted to the S-CSCF. P-CSCF对邀请消息进行处理,保存被叫标识,主叫标识,路由信息等参数。 P-CSCF processes the invitation message, the called party identification storage, caller identification, routing information and other parameters. 在P-CSCF寻找主叫的S-CSCF过程中,可能会有I-CSCF的参与,但这与现有技术是一样的,因此不在此赘述。 Looking at the P-CSCF of the calling process in S-CSCF, I-CSCF may be involved in, but it is the same as the prior art, therefore not described herein. S-CSCF收到402邀请消息后,将被叫的地址、主叫地址、路由信息、P-PCRF的地址及消息的序列号等保存下来,然后发送403邀请消息给被叫的S-CSCF。 S-CSCF 402 receives the INVITE message, the called party address, source address, routing information, P-PCRF address and the sequence number of the saved message, and then sends 403 the INVITE message to the called S-CSCF. S-CSCF根据被叫用户的标识找到被叫的S-CSCF,具体方法参见3GPP TS 23.228。 Find the S-CSCF according to the S-CSCF of the called party identification of the called user, the specific method, see 3GPP TS 23.228. 之后如果主叫的S-CSCF收到被叫侧返回的404 200 OK消息或者183会话进行中消息后,因为这两条消息中包括对于会话的描述参数,因此S-CSCF将认证授权请求发送给H-PCRF305,该消息中还需要包含P-PCRF的地址。 If the caller after the S-CSCF receives 404 200 OK message returned by the called side or the session message 183, since these two parameters message includes a description for the session, the S-CSCF therefore requests the certificate authority to H-PCRF305, the message needs to include the address of the P-PCRF. H-PCRF看到消息中包含P-PCRF的地址,就向P-PCRF发送消息406策略下载,该消息中包含用户设备标识及用户设备进行的业务所要采用的策略和计费规则。 H-PCRF see the message contains P-PCRF address, it sends a message 406 to the P-PCRF Strategy, the policy and charging rules message contains the user equipment identifier and a user equipment for service to be employed. P-PCRF地址信息应该是通过域名解析器能够解析出其的IP地址的。 P-PCRF address information should be able to resolve the IP address through which the domain name resolver. P-PCRF收到这些策略和计费规则之后,就将H-PCRF传输过来到策略和计费规则与本地网络产生的策略和计费规则进行合并,合并的规则如前所述,也可以由拜访网络决定如何进行合并。 P-PCRF after receiving the policy and charging rules, will be transmitted by H-PCRF policy and charging rules to the policy and charging rules generated by the local network merged, the rules as described above, can also be made visited network decides how to merge. 当H-PCRF收到从P-PCRF的响应消息后407,确认P-PCRF已经收到其发送的策略和计费规则,就向S-CSCF返回认证授权回答消息408,该消息中可能包含认证令牌。 When the H-PCRF receives the response message from the P-PCRF 407, P-PCRF has received acknowledgment policy and charging rules to send, it returns an answer message 408 to the authentication and authorization S-CSCF, the message may contain authentication token. S-CSCF将200 OK或者183会话进行中消息转发给P-CSCF409。 S-CSCF a 200 OK or a 183 session progress message to the P-CSCF409. P-CSCF收到该消息后,向P-PCRF发送410认证授权请求消息,该消息中包括对媒体流的描述,及媒体流的分组信息等。 After the P-CSCF receives the message, sending the authentication and authorization request message 410 to P-PCRF, wherein the message includes a description of the media stream, media stream packet information and the like. P-PCRF会分析其收到的业务信息是否与从H-PCRF收到的关于某个媒体流的策略和计费规则相匹配,如果没有问题,那么P-PCRF向P-CSCF返回411业务响应消息。 P-PCRF will analyze whether the received service information matches the policy and charging rules about a media stream received from the H-PCRF, if there is no problem, then the P-PCRF returns 411 business response to P-CSCF news. 该消息中可能携带认证令牌信息。 The message may carry the authentication token information. P-CSCF知道P-PCRF已经得到策略和计费规则后,就向用户设备发送412 200 OK或者183会话进行中消息,消息中包含主被叫标识、会话参数描述,可能还包含认证令牌等信息。 After the P-CSCF has been known P-PCRF policy and charging rules, or sends 412 200 OK 183 to the user equipment in a session message, which includes a main called ID, the session description parameters, and the like may also contain the authentication token information. 用户设备收到200 OK之后就建立用户平面来传输数据,该用户平面的建立包括无线承载的建立和网络承载的建立,其具体建立方式与本发明没有关系,因此在此不作赘述。 After the user device receives the 200 OK to establish a user plane for transmitting data, including the establishment of the user plane radio bearer Establishment and a bearer network, the specific embodiment of the present invention is not to establish the relationship, and therefore not described herein. 当网关收到要建立用户平面的信息后,向P-PCRF请求用户设备进行会话所需要的策略和计费规则,该消息414中包含用户设备的标识,可选的包含认证令牌等信息。 When the gateway receives information of the user plane is to be established, the requesting user equipment sessions required policy and charging rules to the P-PCRF, the message 414 includes an identifier of the user equipment, comprising optional information such as authentication tokens. P-PCRF向网关返回415消息,该消息中包含应用于用户设备该业务的策略和计费规则,网关将这些策略应用到用户设备的业务上,向用户确认用户平面的建立416。 P-PCRF returns a message gateway 415, which message contains the user equipment applies the service policy and charging rules, the gateway will apply these policies to the service user apparatus, confirm the establishment of the user plane to the user 416.

图5描述的是UE如何得到H-PCRF地址的信令流程。 FIG. 5 is a signaling flow of how the UE obtains the H-PCRF address. UE在进行IMS注册的时候,向S-CSCF发送501注册消息,该消息中包含用户设备的会话发起协议统一定位标识、UE的IP地址等信息,当S-CSCF收到注册消息后,我们假定S-CSCF已经对用户设备进行认证,并且认证成功。 UE when performing the IMS registration, transmits 501 a registration message to S-CSCF, the message comprising a session initiation protocol uniform location identifier of the user equipment, UE IP address information of the S-CSCF when receiving the registration message, we assume that S-CSCF has already authenticated the user equipment, and the authentication is successful. 那么S-CSCF根据用户设备的会话发起协议统一定位标识找到为该用户设备服务的HSS,通知HSS 502该S-CSCF已经成为该用户S-CSCF。 Then the S-CSCF based on the Session Initiation Protocol unified user device location identification for the user to find the HSS equipment and services, HSS 502 notification that the S-CSCF has become the user S-CSCF. 该消息中应该包含用户设备公共用户标识、S-CSCF名字、用户设备的专用标识等信息。 This message should include a user equipment identification specific Public User Identity, S-CSCF name, and other information of the user equipment. HSS记录为用户服务的S-CSCF名字,告知S-CSCF用户的签约数据,例如计费信息和初始过滤准则等。 HSS records the name of S-CSCF serving the user to inform the S-CSCF the user's subscription data, such as billing information and the initial filter criteria like.

S-CSCF向用户设备返回504 200 OK消息,接受用户设备的注册,将用户设备的会话发起协议统一定位标识与UE的IP地址相关联。 S-CSCF returns to the user equipment 504 200 OK message, accepts the registration of the user equipment, the Session Initiation Protocol Uniform positioning of the user equipment identifies the IP address associated with the UE. 在200 OK消息中应该包含S-CSCF为该用户设备选择的H-PCRF的地址信息,该地址信息应该是通过域名解析器能够获得IP地址的全域名。 In the 200 OK message should include the address information of the H-PCRF S-CSCF for the user equipment selected by the address information should be fully qualified domain name resolver is possible to obtain an IP address.

图6描述的是本发明的第三个实施例。 FIG 6 is described with the third embodiment of the present invention. 图6的信令流程与图3描述的基本类似,只不过P-CSCF获得H-PCRF的地址不是从用户设备处得到的,而是从S-CSCF得到的。 FIG 6 is a signaling flow with substantially similar to FIG. 3 described above, except that P-CSCF to obtain the H-PCRF address is not received from the user device, but obtained from the S-CSCF. IMS会话按照正常流程进行,当S-CSCF向P-CSCF返回607 200 OK或者183会话进行中时,该消息除了进行呼叫的正常参数外,还包含H-PCRF的地址,通过域名服务器解析该地址能够得到H-PCRF的IP地址。 IMS session according to the normal flow, when the S-CSCF returns 607 200 OK or 183 Session to the P-CSCF, the message in addition to the normal parameters of a call, also comprising address H-PCRF, and to resolve the address by the domain name server possible to obtain the IP address of the H-PCRF. 然后在608过程中,P-CSCF将H-PCRF的地址传递给P-PCRF,这个过程及随好的609-616跟图3中的309-316是一模一样的。 Then process 608, P-CSCF passes the address of the H-PCRF to the P-PCRF, and the process with good 609-616 in FIG 3309-316 with exactly the same.

图7是本发明中用户设备的动作说明。 FIG. 7 is an operation of the present invention is described in the user equipment. 根据本发明第一实施例,用户设备进行IMS注册,该注册过程与现有的注册过程没有任何差别,具体流程可以参见3GPP TS 23.228。 According to a first embodiment of the present invention, the user equipment performs IMS registration, the registration process is no different from the existing registration process, the specific process may be found in 3GPP TS 23.228. 用户设备发送注册消息给P-CSCF和S-CSCF,该消息中会包含用户设备的公共用户标识、用户的IP地址等信息。 The user equipment sends a registration message to the P-CSCF and S-CSCF, the message will contain the public user identity of the user equipment, the user's IP address information. 如果用户设备收到对于注册消息的最终响应200 OK,其中包含H-PCRF的地址702,那么UE就知道其处于漫游状态,保存H-PCRF的地址703。 If the final response to the user equipment receives a registration message 200 OK, which includes address 702 H-PCRF, the UE knows that it is in a roaming state, the H-PCRF address storage 703. 当用户设备的注册信息没有发生任何改变而要进行IMS会话时,在其发起的邀请消息中,要包含H-PCRF的地址信息,当然也要包含其他的诸如被叫方地址、主叫方地址、会话描述参数等。 When registration information of the user equipment without the occurrence of any changes to be IMS session, it initiates an invitation message containing the address information to the H-PCRF, of course, also include other information such as called party address, calling party address session description parameters.

图8是本发明中H-PCRF的动作说明。 FIG 8 is an operation of the present invention is described in the H-PCRF. H-PCRF如果收到从S-CSCF发送的认证授权请求消息,该消息中除了包含业务信息之外,还包含P-PCRF的地址801,那么H-PCRF就根据该地址解析出P-PCRF的IP地址。 If the H-PCRF sent from the authentication authority receives S-CSCF a request message, except the message contains service information, further comprising address 801 P-PCRF, then the H-PCRF to the P-PCRF parsed according to the address IP addresses. H-PCRF根据认证授权请求消息中包含的业务信息和运营商配置的策略等信息,得出针对该用户设备的该业务的策略和计费规则,将其发送给P-PCRF802。 H-PCRF policy and other service information request message and for carrier configuration included in the message according to the authentication authorization policy and charging rules derived for the device of the service user, and transmits it to the P-PCRF802. 如果H-PCRF收到P-PCRF的成功响应803,那么它就向S-CSCF返回认证授权回答消息804,结束该过程。 If the H-PCRF P-PCRF receives the success response 803, then it returns an authentication authorization answer message to the S-CSCF 804, the process ends. 消息中应该可能会包含认证令牌等信息。 The message should contain the authentication tokens may be other information.

如果H-PCRF收到的认证授权请求消息中不包含P-PCRF的地址,那么H-PCRF就向S-CSCF返回认证授权回答消息805,消息中包含用户标识,还可能会包含认证令牌等信息。 If the H-PCRF receives the authentication and authorization request message does not contain P-PCRF address, then the H-PCRF to the S-CSCF returns the authentication and authorization answer message 805, the message contains the user ID, the authentication token may also contain other information. 接下来,如果H-PCRF收到P-PCRF的策略请求消息806,就根据消息中包含的用户标识及业务信息将其已经得出的策略和计费规则传递给P-PCRF807。 Next, if the H-PCRF P-PCRF receives the policy request message 806, according to user identification and service information contained in the message which has been derived from the transmitted policy and charging rules to the P-PCRF807.

图9是本发明中P-PCRF的动作说明。 FIG 9 is the operation of the present invention is described in the P-PCRF. P-PCRF如果收到从P-CSCF发送的认证授权请求消息,该消息中除了包含业务信息之外,还包含H-PCRF的地址901,那么P-PCRF就根据该地址解析出H-PCRF的IP地址。 If the P-PCRF receives the authentication and authorization from the P-CSCF transmitted request message, except the message contains service information, further comprising the H-PCRF address 901, then the P-PCRF to the H-PCRF parsed according to the address IP addresses. P-PCRF根据认证授权请求消息中包含的业务信息和运营商配置的策略等信息,得出针对该用户设备的该业务的策略和计费规则,然后向H-PCRF请求下载由H-PCRF给该业务制定的策略和计费规则902。 P-PCRF policy and other service information request message and for carrier configuration included in the message according to the authentication and authorization, obtained policy and charging rules for the service to the user equipment, then the request to download the H-PCRF to the H-PCRF the business development of the policy and charging rules 902. P-PCRF向H-PCRF发送策略请求消息,该消息中包含用户设备的标识等参数。 P-PCRF request message to the H-PCRF sends the policy, the message contains parameters identifying the user equipment. 如果P-PCRF收到H-PCRF的策略下载消息903,就保存该消息中包含的策略和计费规则,并与它本身产生的策略和计费规则相组合,应用于用户设备的服务质量控制和计费。 If the P-PCRF receives message Strategy H-PCRF 903, on the preservation of the policy and charging rules contained in the message, and is generated by its own policy and charging rules are combined, it applied to the user equipment the service quality control and billing. 合并的规则如前所述,也可以由拜访网络决定如何进行合并。 As previously mentioned merger rules can also decide how to merge the visited network. 然后P-PCRF向S-CSCF返回认证授权回答消息904,结束该过程。 P-PCRF returns an authentication and authorization answer message to the S-CSCF 904, the process ends. 消息中应该可能会包含认证令牌等信息。 The message should contain the authentication tokens may be other information.

如果P-PCRF收到的认证授权请求消息中不包含H-PCRF的地址,那么P-PCRF就向P-CSCF返回认证授权回答消息905,消息中包含用户标识,还可能会包含认证令牌等信息。 If the P-PCRF receives the authentication and authorization request message does not contain the H-PCRF address, then the P-PCRF to the P-CSCF returns the authentication and authorization answer message 905, the message contains the user ID, the authentication token may also contain other information. 接下来,如果P-PCRF收到H-PCRF的策略下载消息906,就保存策略和计费规则,并向H-PCRF发送策略下载响应消息907,结束该过程。 Next, if the received P-PCRF H-PCRF policy download message 906 is saved policy and charging rules, and transmits the H-PCRF policy Download Response message 907, the process ends.

图10是本发明中S-CSCF的动作说明。 FIG 10 is an operation of the present invention is described in the S-CSCF. 图10中左边部分描述的是针对第二和第三实施例的S-CSCF的动作,右边部分描述的是针对第一实施例的S-CSCF的动作。 FIG 10 is described in the left part of the S-CSCF for the second and third embodiments operation is the S-CSCF for the first embodiment described in the right part of the operation.

S-CSCF收到从P-CSCF来的邀请消息时1001,如果消息中包含P-PCRF的地址,那么S-CSCF就在给H-PCRF发送认证授权请求消息时,在该消息中包含P-PCRF的地址信息1002。 When the S-CSCF to P-CSCF receives the invite message 1001, if the message contains P-PCRF address, then the S-CSCF sending the authentication in the authorization request message to the H-PCRF, the message contained in the P- PCRF address information 1002. S-CSCF通常是在请求H-PCRF对用户的业务进行策略控制和计费规则设置的时候会发送认证授权请求消息给H-PCRF。 S-CSCF typically sends an authorization request message authentication H-PCRF to the H-PCRF when the user requests service policy control and charging rules set. 当S-CSCF收到H-PCRF的响应消息认证授权回答之后1003,就结束该过程。 When S-CSCF receives the response message authentication authorization H-PCRF answers 1003, the process ends.

如果1001的邀请消息中不包含P-PCRF的地址消息,S-CSCF对比用户设备的拜访网络是否是用户设备的签约网络,如果是一样的,那么表明该用户设备没有处于漫游状态,就结束该过程。 If the invitation message 1001 does not contain the address of the message P-PCRF whether S-CSCF contrast user equipment visited network is subscription network of the user equipment, if it is the same, it indicates that the user equipment is not in a roaming state, the end of the process. 否则,S-CSCF在稍后给P-CSCF发送的针对邀请消息的响应中要包含H-PCRF的地址。 Otherwise, S-CSCF in response to the P-CSCF sent later for the invitation message to be included in the H-PCRF address. 该响应消息多半是200 OK或者183会话进行中。 The response message 200 OK or 183 mostly in the session.

当S-CSCF收到用户设备的注册请求后,对比用户设备的拜访网络是否是用户设备的签约网络,若干是,那么就结束该过程。 When S-CSCF receives a registration request of the user equipment, the user equipment contrast visited network if the user equipment is a network subscription, a plurality, then the process ends. 否则,S-CSCF在发送给用户设备的针对注册消息的响应消息中包含H-PCRF地址。 Otherwise, S-CSCF comprising H-PCRF address response message for the registration message to the user equipment.

图11是本发明中P-CSCF的动作说明。 FIG 11 is an operation of the present invention is described in the P-CSCF. 图11中左边部分描述的是针对第一和第二实施例的S-CSCF的动作,右边部分描述的是针对第三实施例的S-CSCF的动作。 FIG 11 is described in the left part of the S-CSCF for the second embodiment and the first example of the operation, the S-CSCF against the third embodiment described in the right part of the operation.

P-CSCF收到从UE发送来的邀请消息,如果该消息中包含H-PCRF的地址1101,那么P-CSCF就在给P-PCRF发送的认证授权请求消息中包含H-PCRF的地址1102,P-CSCF给P-PCRF发送认证授权请求消息是在其决定对用户设备的业务进行策略和计费控制的时候。 P-CSCF receives the invitation message transmitted from the UE, and if the message contains an address of 1101 H-PCRF, the P-CSCF in the P-PCRF to send the authentication and authorization request message contains the H-PCRF address 1102, P-CSCF sends an authentication request message is an authorization decision on which service the user equipment for policy and charging control when in a P-PCRF. 当P-CSCF收到P-PCRF的认证授权回答消息后1103,就结束该过程。 When the P-CSCF receives the authentication and authorization answer message P-PCRF 1103, the process ends.

如果P-CSCF收到的消息1101中没有包含H-PCRF的地址,而在S-CSCF发送给P-CSCF的针对邀请消息的响应中包含H-PCRF的地址1104,操作就转移到1102。 If the P-CSCF 1101 receives the message does not contain the address of the H-PCRF, and transmits the response to the P-CSCF address for the invitation message contains the H-PCRF in the S-CSCF 1104, the operation branches to 1102.

如果P-CSCF收到用户设备的邀请消息,发现用户设备处于漫游状态1105,那么P-CSCF就在给S-CSCF发送的邀请消息中包含P-PCRF的地址信息。 If the P-CSCF receives the invite message to the user equipment, the user equipment found in a roaming state 1105, then the P-CSCF to P-PCRF address information contained in the invitation message to S-CSCF sent. P-CSCF知道用户设备是否处于漫游状态,是通过比较用户设备所处的网络是否是用户设备签约的网络而知道的。 P-CSCF knows whether the user equipment is roaming by comparing the user whether the network device is located is a user equipment and a network subscription is known.

Claims (9)

  1. 1.一种在漫游状态下进行策略控制的方法,包括步骤:a)拜访网络的PCRF从用户设备的归属网络的PCRF得到策略和计费控制规则;b)拜访网络的PCRF将拜访网络产生的策略和计费控制规则与归属网络的PCRF的传输过来的策略和计费控制规则进行合并,生成新的策略和计费控制规则;c)拜访网络的PCRF将b)产生的新的策略和计费控制规则发送给网关。 1. A method of policy control in a roaming state, comprising the steps of: a) the visited network PCRF to obtain policy control and charging rules from the PCRF to the home network of the user equipment; b) of the visited network visited network generated by the PCRF policy and charging control rule transmission of the home network over the PCRF policy and charging control rule are combined to generate a new policy and charging control rule; new strategies c) PCRF in the visited network in b) and the generated count fee control rule sent to the gateway.
  2. 2.根据权利要求1所述的方法,其特征在于所述步骤a)包括:拜访网络的PCRF从拜访网络的P-CSCF发送的认证授权请求消息中得到归属网络的PCRF的地址信息。 The method according to claim 1, wherein said step a) comprises: authentication and authorization the visited network PCRF sent from the visited network P-CSCF in the request message to obtain the address of the home network PCRF information.
  3. 3.根据权利要求2所述的方法,其特征在于所述认证授权请求消息包括对媒体流的描述、媒体流的分组信息、H-PCRF的地址信息。 3. The method according to claim 2, characterized in that said authorization authentication request message includes a description of the media stream, the media stream packet of information, the address information of the H-PCRF.
  4. 4.根据权利要求1所述的方法,其特征在于在步骤a)和步骤b)之间包括:P-PCRF分析其收到的业务信息是否与从H-PCRF收到的某个媒体流的策略和计费规则相匹配,如果匹配,则P-PCRF向P-CSCF返回业务响应消息。 4. The method according to claim 1, characterized in that between step a) and step b) includes: P-PCRF analyze whether the received service information received from a certain media stream H-PCRF policy and charging rules match, if match, then the P-PCRF returns a service response message to the P-CSCF.
  5. 5.根据权利要求4所述的方法,其特征在于所述业务响应消息包括认证令牌信息。 5. The method as claimed in claim 4, wherein said service response message including the authentication token information.
  6. 6.根据权利要求1-3之一所述的方法,其特征在于归属网络的PCRF和拜访网络的PCRF地址通过域名解析器解析出IP地址。 6. The method according to any one of claims 1-3, wherein the home network and the visited PCRF network address resolution PCRF an IP address through the domain name resolver.
  7. 7.根据权利要求1所述的方法,其特征在于还包括步骤:拜访网络的P-CSCF从归属网络的S-CSCF处得到归属网络的PCRF的地址信息;拜访网络的P-CSCF将归属网络的PCRF地址发送消息告诉拜访网络的PCRF。 7. The method according to claim 1, characterized by further comprising the step of: the visited network P-CSCF address information is obtained from the PCRF in the home network S-CSCF at the home network; visited network P-CSCF to the home network the PCRF address to send a message to tell PCRF of the visited network.
  8. 8.根据权利要求1所述的方法,其特征在于还包括步骤:拜访网络的P-CSCF从用户设备处得到归属网络的PCRF的地址信息;拜访网络的P-CSCF将归属网络的PCRF地址发送消息告诉拜访网络的PCRF。 8. The method according to claim 1, characterized by further comprising the step of: the visited network P-CSCF to obtain the address information of the home PCRF from the user network device; P-CSCF of the visited network to the home network address of the PCRF sent news PCRF of the visited network.
  9. 9.根据权利要求1所述的方法,其特征在于还包括步骤:拜访网络的P-CSCF将拜访网络的PCRF地址发送消息告诉归属网络的S-CSCF;S-CSCF将拜访网络的PCRF的地址发送消息告诉归属网络的PCRF;归属网络的PCRF给拜访网络的PCRF发送消息,传递用户业务的策略和计费规则。 S-CSCF address of the PCRF to the visited network; visited network P-CSCF to PCRF in the visited network address to send a message to tell the home network S-CSCF: 9. The method according to claim 1, characterized by further comprising the step of PCRF sends a message to tell the home network; a home network to the visited network PCRF PCRF sends a message, transfer policy and charging rules user services.
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