WO2008000171A1 - Procédé et système de décision d'informations de localisation d'abonné de service multidiffusion - Google Patents

Procédé et système de décision d'informations de localisation d'abonné de service multidiffusion Download PDF

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Publication number
WO2008000171A1
WO2008000171A1 PCT/CN2007/070090 CN2007070090W WO2008000171A1 WO 2008000171 A1 WO2008000171 A1 WO 2008000171A1 CN 2007070090 W CN2007070090 W CN 2007070090W WO 2008000171 A1 WO2008000171 A1 WO 2008000171A1
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Prior art keywords
multicast service
user
location
location information
identifier
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PCT/CN2007/070090
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English (en)
French (fr)
Inventor
Rui Wang
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Huawei Technologies Co., Ltd.
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Publication date
Application filed by Huawei Technologies Co., Ltd. filed Critical Huawei Technologies Co., Ltd.
Publication of WO2008000171A1 publication Critical patent/WO2008000171A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/40Connection management for selective distribution or broadcast
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02Services making use of location information

Definitions

  • the present invention relates to multicast services for communication networks, and more particularly to a method and system for determining a location area in which a multicast user in a multicast service is located.
  • UMTS networks provide support for multicast services through Multimedia Broadcast/Multicast Service (MBMS) technology. Users can subscribe to the right to receive multicast services or subscribe to join the multicast service. The network knows the potential path of the user to obtain the multicast service through the registration of the user. By combining these paths, it is ensured that on a transmission path, no matter how many users exist, the service data of a certain multicast service is transmitted only once. This saves network resources.
  • MBMS Multimedia Broadcast/Multicast Service
  • the network When the network provides the multicast service, it needs to know the user location information of the multicast service, such as the user distribution of the multicast service, whether the user of the multicast service exists in a certain location area, and the user location information of the multicast service. In these location areas, targeted upgrade activity announcements, new campaign promotions, or service policy adjustments are targeted. Accurate understanding of the user location information of the multicast service can make the above activities of the network more efficient and direct. In addition, by knowing the user location information of the multicast service, the network can actively trigger the UE to join the multicast service, thereby reducing the factors of human judgment and operation.
  • the user location information of the multicast service such as the user distribution of the multicast service, whether the user of the multicast service exists in a certain location area, and the user location information of the multicast service. In these location areas, targeted upgrade activity announcements, new campaign promotions, or service policy adjustments are targeted. Accurate understanding of the user location information of the multicast service can make the above activities of the network more efficient and direct. In addition
  • the process of obtaining the location area of the user by the network is as follows: The UE registers with the network, and the registration request is notified to the core network, and then the core network searches for the path of the access network to obtain the location information of the user.
  • the UE may also be required to initiate a location registration process.
  • the process learns the location information of the UE.
  • the UE performs location registration when logging in to the network for the first time, and each subsequent registration is an update of the last registration information, so the location registration process is also referred to as a location update process.
  • a location area is defined in the network to identify the location of the terminal, and the TA may be a collection of multiple cells.
  • the network can perform two location registration processes. One is the location registration process initiated after the location area is changed, and the other is the location registration process where the location area is unchanged (for example: terminal periodic location update). If the location area changes, the UE interacts with two different Mobile Management Entities (MMEs) during the location update process.
  • MMEs Mobile Management Entities
  • the specific procedure is as follows: The UE initiates a location update request to the new MME, and the new MME requests context information from the original MME according to the original location information and the UE identity information provided by the UE, and requests the Home Subscriber Server (HSS) to authenticate the UE. .
  • the HSS After the authentication is passed, the HSS records the current location of the UE, and requests the original MME to delete the information of the UE, and the new MME adds the information of the UE. Finally, the new MME assigns a network identity to the UE and completes the location update.
  • the present invention provides a method and system for determining user location information of a multicast service.
  • the main technical solutions are as follows:
  • a method for determining user location information of a multicast service comprising: setting user location information for a multicast service on a network side, for recording a location distribution of a user of the multicast service in the network, and publishing the multicast according to the user location information Service
  • the network side receives a location update notification, and the location update notification carries the multicast of the user Service identification and location identification before and after the update;
  • the network side modifies the user location information of the multicast service according to the location update notification.
  • a method for determining user location information of a multicast service comprising: setting user location information for a multicast service on a network side, and recording a location distribution of a user of the multicast service in the network;
  • the network side advertises a paging message including the multicast service identifier in a location area of the multicast service according to user location information of the multicast service;
  • the user who saves the multicast service identifier makes a paging response, and the network side receives the paging response to know the location of the user.
  • a system for determining user location information of a multicast service comprising: a first network entity, storing user location information set for a multicast service, wherein the user location information records a location distribution of a user of the multicast service in a network ;
  • the second network entity receives and modifies the user location information of the multicast service according to the location update notification, where the location update notification carries the multicast service identifier of the user and the location identifier before and after the update.
  • a system for determining user location information of a multicast service comprising: a first network entity, storing user location information set for a multicast service, wherein the user location information records a location distribution of a user of the multicast service in a network ;
  • a second network entity in accordance with user location information of the multicast service, publishing a paging message including the multicast service identifier in a location area of the multicast service;
  • the third network entity receives the paging response made by the user terminal that holds the multicast service identifier, and learns the location of the user.
  • the method and system for determining the user location information of the multicast service of the present invention enable the network side to accurately and systematically know the user location information related to the multicast service, so that the network side can be targeted to the user.
  • the location area is triggered more Broadcast services, as well as other services related to multicast services, such as posting subscription upgrade event announcements or targeted business promotions.
  • FIG. 1 is a block diagram of a prior art wireless network.
  • Figure 2 is a flow chart of the first embodiment of the present invention.
  • Figure 3 is a flow chart of a second embodiment of the present invention.
  • Figure 4 is a flow chart of a third embodiment of the present invention.
  • Figure 5 is a flow chart of a fourth embodiment of the present invention.
  • Figure 6 is a flow chart of a fifth embodiment of the present invention. Mode for carrying out the invention
  • the UE is a terminal.
  • a wireless network that provides multicast services includes the following entities (the wireless network is referred to below as the network side):
  • the RAN is an access network.
  • the MME is a mobility management entity responsible for mobility management of the UE.
  • UPE is a user plane entity, where UPE-C is responsible for user plane signaling processing, and UPE-U is responsible for user plane data processing.
  • the UPE is the entity responsible for data transmission in the core network, and can also connect to the PDN including the internet through it.
  • UPEs that support multicast broadcast capabilities are called Multicast UPEs, which provide multicast broadcast capabilities with the help of the Multicast Controller. Of course, not all UPEs need to support multicast broadcast capabilities.
  • the GW is the gateway.
  • the HSS is a local user management server, which can be used for subscription information of multicast service users.
  • the wireless network is a UMTS network
  • the function of the MME is implemented by the SGSN
  • the UPE is implemented by the SGSN and the GGSN
  • the GW is implemented by the GGSN.
  • FIG. 1 the flow of determining the user location information of the multicast service in the present invention is described below. It can be understood that the application of the present invention in a general wireless network can be used to introduce the application of the present invention in a UMTS network or the like.
  • the process of the first embodiment of the present invention includes:
  • Step 210 Set a user location table of the multicast service on the network side to record the number of users of the multicast service under each location area.
  • the user location table of the multicast service may be set in the HSS, and the content of the user location table includes: location area information corresponding to a multicast service and the number of users in the location area, where the multicast service
  • the identifier can be recorded as a header or as an entry.
  • the user location table is set to refer to Table 1, and its format can be flexibly changed as needed.
  • Step 212 The network side authenticates the multicast service of the UE, and processes the user location information of the multicast service according to the authentication result of the multicast service.
  • the processing may be an operation of modifying, deleting, updating, and the like.
  • the multicast service of the UE is authenticated by the HSS.
  • the authentication can be triggered in two ways:
  • the HSS stores a service support list for recording the services approved by the user, such as whether to support the PS domain, whether to support MMS, and the like. In this embodiment, a record is added to the service support list to save the subscription status of the user to one or some multicast services.
  • MME International Mobile Subscriber Identity
  • the identity of the user such as the International Mobile Subscriber Identity (IMSSI)
  • IMSSI International Mobile Subscriber Identity
  • the HSS also checks the service support list of the user and authenticates the multicast service recorded therein.
  • the authenticating the multicast service includes: checking the payment status of the user, checking whether the user subscription expires, and the like, and determining whether the user has the right to receive the multicast service.
  • the HSS triggers based on events or time conditions. For example: The HSS can authenticate the user's multicast service after the end of the multicast service; or, at a certain time, such as a certain monthly time, authenticate the user's multicast service.
  • the user location table of the multicast service is processed according to the authentication result of the multicast service, which is: For the multicast service that is approved before and after the authentication, the number of users corresponding to the original location area (TA) is reduced by 1, and the current TA corresponds. The number of users is increased by 1; for the last approved, the number of users corresponding to the original TA is reduced by 1 for the multicast service rejected this time; for the last rejection, the number of users corresponding to the current TA is increased for the approved multicast service. 1.
  • the entry corresponding to the TA is deleted in the user location table. If you want to modify the number of users in a TA, and find that there is no entry corresponding to the TA in the user location table, add the entry corresponding to the TA in the table.
  • Step 214 The network side learns, according to the user location table of the multicast service, which location areas have users interested in the multicast service.
  • the GW can know which TAs are interested in a certain multicast service, and then obtain the location information of these users.
  • the network side may trigger the multicast service and other services related to the multicast service for the location area where the UE is located, for example, publishing a subscription upgrade activity announcement or performing targeted business promotion.
  • a user subscribes to multiple multicast services, such as the multicast service TMGI1, TMGI2 TMGI3.
  • the UE initiates a location update procedure.
  • the HSS authenticates the UE and updates the user location table stored by itself. For example, in the user location table corresponding to TMGI1, TMGI2, and TMGI3, the number of users corresponding to TA1 is decreased by 1, and the number of users corresponding to TA2 is increased. 1.
  • the HSS also authenticates the UE's multicast service. Assumption: TMGI1 and TMGI2 are approved for use in the authentication before the location area change, and TMGI1 and TMGI3 are approved for use in this authentication. Then, according to the above authentication result, the HSS modifies the user location table, specifically:
  • the number of users corresponding to TA1 is decremented by one. If the value is 0, the entry is deleted. If the number of users corresponding to TA2 is increased by one, if there is no entry corresponding to TA2, Increase the entry and set the number of users to 1.
  • the number of users corresponding to TA1 is decremented by one. If it is 0 at this time, the entry is deleted.
  • the number of users corresponding to TA2 is increased by one. If there is no entry corresponding to TA2 at this time, the entry is added and the number of users is set to 1.
  • the method for determining the user location information of the multicast service in this embodiment enables the network side to accurately and systematically know the user location information related to the multicast service.
  • the network side can trigger the multicast service for the location area where the user is located, as well as other services related to the multicast service, such as issuing a subscription upgrade event announcement or targeted business promotion.
  • Fig. 3 shows the flow of the second embodiment of the present invention.
  • the network When the network conducts a multicast service, it assigns a multicast service identifier to the multicast service, such as the TMGI identity.
  • Step 310 When a user subscribes to the multicast service, the network side records the multicast service identifier (such as TMGI) subscribed by the user in the HSS. Specifically, it is recorded in the service support list set for the user in the HSS, and the service support list is generally used for recording a certain use.
  • the services supported by the user such as whether to support the PS domain, whether to support MMS and other information.
  • a record may be added to the service support list to save the user's subscription status to the multicast service.
  • the network side also provides the multicast service identifier to the UE used by the user.
  • the network side provides TMGI to the UE: First, after the authentication is completed, if the TMGI is changed, the new TMGI is provided to the user; and second, the user is distributed to the user when the user subscribes.
  • Step 312 The network issues a paging message, where the paging message includes a multicast service identifier, and the UE that saves the same multicast service identifier is required to respond.
  • Step 314 For the UE receiving the paging message, if the UE has the same multicast service identifier, the UE will make a paging response.
  • Step 316 The network receives the paging response, and according to this, the location area where the UE is located is known.
  • the foregoing process may also include an authentication function, and does not limit the execution order between authentication and paging, that is, authentication may be completed before paging or after paging.
  • the authentication function refers to the authentication of the right of the user to receive the multicast service.
  • the authentication function can be triggered in two ways: performing multicast service authentication in the location registration process, or triggering authentication through time or event. .
  • Fig. 4 shows the flow of the third embodiment of the present invention.
  • the network side authenticates the user's multicast service before issuing the paging message. It should be noted that when the network carries out a multicast service, a multicast service identifier is assigned to the multicast service. When a user subscribes to the multicast service, the subscribed multicast service identifier is recorded in the business support list of the user on the HSS.
  • Step 410 When the location area of the UE changes, the UE initiates a location update request to the network side.
  • the location update request carries the location information TA of the UE and the identity identifier, and the identity identifier may be P-TMSL.
  • Step 412 The MME on the network side receives the location update request, according to the P-TMSI, the permanent identity (IMSI) of the UE is sent to the HSS.
  • P-TMSI the permanent identity of the UE
  • Step 414 The HSS authenticates the UE, and authenticates the multicast service of the UE according to the service support list saved in the HSS. If the authentication of the multicast service is passed,
  • the HSS sends the multicast service identifier that the UE is permitted to receive to the MME.
  • the MME returns all the multicast service identifiers that the UE is permitted to receive to the UE in the location update accept message.
  • Step 416 After receiving the location update accept message, the UE performs corresponding processing, such as deleting
  • TMGI TMGI.
  • a multicast service identifier list is set in the UE, and the multicast service identifier is saved.
  • Step 418 When the multicast service starts, the network side sends an MBMS paging message to the UE.
  • the paging message carries a multicast service identifier, and the UE that holds the same multicast service identifier is required to make a paging response.
  • Step 420 After receiving the paging message, the UE compares the multicast service identifier in the paging message with the multicast service identifier list saved in the UE. If the UE has the same multicast service identifier, the UE A paging response is made and the identity of the UE and the multicast service identity are included in the paging response.
  • Step 422 The network side learns the location information of the UE according to the received paging response, and triggers other services for the location area where the UE is located, for example, issuing a subscription upgrade activity announcement or performing targeted advertisement promotion.
  • Fig. 5 shows the flow of the fourth embodiment of the present invention.
  • the network side also authenticates the user's multicast service before paging, but the authentication trigger mode is different from the third embodiment.
  • Step 510 The network side sets an authentication trigger condition for a multicast service.
  • the authentication trigger condition may be an event, such as being triggered after each multicast service ends; or may be time, For example, it is triggered at a fixed time each month.
  • Step 512 When the set event or time condition is met, the network side authenticates the multicast service.
  • the operation of authenticating the multicast service can be performed by the HSS on the network side.
  • the HSS authenticates the UE that subscribes to the multicast service according to the service support list.
  • Step 514 After the authentication is passed, the UE sends a notification message carrying the authentication result to the UE, where the authentication result includes: the IMSI of the user, the originally authorized multicast service identifier, and the currently authorized multicast service identifier.
  • Step 516 The UE receives the notification message, deletes the originally authorized multicast service identifier saved by the UE, and saves the currently authorized multicast service identifier.
  • Step 518 When it is desired to know the user location information of the multicast service, the network side sends an MBMS paging message to the UE, where the paging message includes the current multicast service identifier.
  • Step 520 After receiving the paging message, the UE compares the TMGI in the message with the TMGI list saved in the UE. If the same TMGI is recorded in the TMGI list saved by the UE, the UE responds to the paging message. And including the identity of the UE and the multicast service identifier in the paging response.
  • Step 522 The network side receives the paging response, and learns the location area where the multicast service user is located, and triggers other services for the location area where the UE is located, for example, posting a subscription upgrade activity announcement or performing targeted advertisement promotion.
  • Fig. 6 shows the flow of the fifth embodiment of the present invention.
  • authentication is performed after paging.
  • the network cannot update the multicast service identifier saved by the UE through the paging mode.
  • the network side directly searches for the UE.
  • Step 610 When the network performs a multicast service, assign a multicast to the multicast service.
  • Service identifier When a certain user or a certain user subscribes to the multicast service, the multicast service identifier subscribed by the user is recorded in a service support list set for the user on the HSS, and the multicast service identifier is provided to the user. The UE saves the multicast service identifier.
  • a multicast service identifier list is set in the UE, and the list is used to save the multicast service identifier subscribed by the UE.
  • Step 612 The network side sends a paging message, where the paging message includes a multicast service identifier.
  • Step 614 After receiving the paging message, the UE compares the multicast service identifier in the paging message with the multicast service identifier list saved in the UE. If the multicast service identifier list in the UE stores the multicast service identifier in the paging message, the UE sends a paging response to the network side, where the paging response includes information such as the user's IMSI, the multicast service identifier, and the like.
  • Step 616 The network receives the paging response, sends the IMSI and the TMGI identifier of the user to the HSS for authentication, and determines, according to the authentication result, whether the user has the right to receive the multicast service. In addition, after the location area of the multicast service user is known, the network side returns the authentication result to the MME.
  • Step 618 The MME sends the authentication result to the UE.
  • Step 620 After receiving the authentication result, the UE modifies the multicast service identifier list saved by itself. If the user does not have the right to receive the multicast service, the TMGI identity is removed from the multicast service identity list. If the network performs the redistribution of the TMGI identity, for example, changing the identity of the CCTV5 from TMGI1 to TMGI2, if the user authentication passes, the authentication result sent to the UE may carry the old multicast service identifier TMGI1 and the new multicast service. Identify TMGI2.
  • an embodiment of the present invention provides a system for determining user location information of a multicast service, the system comprising:
  • the user terminal sends a location update notification when the location update occurs, and the location update notification carries the multicast service identifier of the user and the location identifier before and after the update;
  • the first network entity saves user location information set for the multicast service, where the user location information records the location of the user of the multicast service in the network;
  • the second network entity modifies the user location information of the multicast service according to the location update notification.
  • the first network entity is an HSS
  • the second network entity is a GW or an MME.
  • the first network entity and the second network entity may also be implemented by using MME.
  • Embodiments of the present invention also provide a system for determining user location information of a multicast service, the system comprising:
  • the user terminal receives the paging message and performs a paging response according to the multicast service identifier saved by the user terminal;
  • the first network entity stores user location information set for the multicast service, where the user location information records the location of the user of the multicast service in the network;
  • a second network entity in accordance with user location information of the multicast service, publishing a paging message including the multicast service identifier in a location area of the multicast service;
  • the third network entity, the paging response learns the location of the user.
  • the method and system provided by the embodiments of the present invention enable the network side to accurately and systematically know the user location information related to the multicast service.
  • the network side can trigger multicast services for the location area where the user is located, as well as other services related to the multicast service.
  • the HSS entity described in the embodiments of the present invention is not limited to an HSS entity in a 3GPP network, and may also be a network entity having equal or similar functions in other networks.
  • the MME mentioned in the above description is the SGSN
  • the UPE is the SGSN and the GGSN
  • the GW is the GGSN.
  • the application of the embodiment of the present invention to the UMTS network can be known by those skilled in the art from the above description, and will not be further described herein.

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Description

一种确定多播月艮务的用户位置信息的方法和系统
技术领域
本发明涉及通信网络的多播服务,尤指一种确定多播服务中的多 播用户所在的位置区域的方法和系统。 发明背景
目前, 各种无线网络都有多播应用的需求, 并且该需求在这些网 络上大多得以实现或部分实现。 例如, 现有 UMTS 网络就通过多媒 体广播 /多播服务(MBMS )技术, 提供对多播服务的支持。 用户可 以通过订阅获得接收多播服务的权利,或者通过注册加入到多播服务 中。 网络通过用户的注册情况了解到用户潜在的、 需要获得多播服务 的路径, 通过合并这些路径, 确保在一条传输路径上, 无论存在多少 用户, 某个多播服务的业务数据只传输一次, 以此来节约网络资源。
网络在提供多播服务时, 需要获知多播服务的用户位置信息, 比 如多播服务的用户分布,某个位置区域是否存在该多播服务的用户等 信息, 利用多播服务的用户位置信息, 在这些位置区域有针对性地发 布订阅升级活动通告,或开展新的活动宣传,或进行服务策略调整等。 准确了解多播服务的用户位置信息, 能使得网络的上述活动更为高 效、 直接。 此外, 通过获知多播服务的用户位置信息, 网络能够主动 触发 UE加入到多播服务中, 减少人为判断和操作的因素。
现有情况下, 网络获取用户所在的位置区域的过程为: UE向网 络注册,该注册请求通知到核心网,再由核心网寻找接入网上的路径, 获得用户的位置信息。
当然, 在无线网络中, 还可以要求 UE发起位置注册流程, 通过 该流程获知 UE的位置信息。 其中, UE在初次登陆网络时执行位置 注册, 之后的每次注册都是对上次注册信息的更新, 故所述位置注册 流程也称为位置更新流程。
网络中定义了位置区域(TA ) , 以此来标识终端的位置, 所述 TA可以是多个小区的集合。 基于上述定义, 网络可以执行两种位置 注册流程。 一种是位置区域改变后发起的位置注册流程, 另一种是位 置区域未改变的位置注册流程(比如: 终端周期性位置更新)。 如果 位置区域发生改变, 在位置更新流程中, UE会与两个不同的移动管 理实体 ( MME, Mobile Management Entity )发生交互。 具体流程为: UE向新 MME发起位置更新请求,新 MME根据 UE提供的原位置信 息和 UE身份信息向原 MME索取上下文信息, 并要求归属用户服务 H ( HSS , Home Subscriber Server )对 UE进行鉴权。 鉴权通过后, HSS记录 UE的当前位置 ,并要求原 MME删除该 UE的信息、新 MME 添加该 UE的信息。 最后, 新 MME为 UE分配网络标识, 并完成位 置更新。
但是, 在上述流程中, 网络都不能系统地得到与多播服务相关的 用户位置信息。 发明内容
本发明提供一种确定多播服务的用户位置信息的方法和系统,主 要技术方案如下:
一种确定多播服务的用户位置信息的方法, 该方法包括: 在网络侧为多播服务设置用户位置信息,用于记录多播服务的用 户在网络的位置分布, 根据用户位置信息发布多播服务;
网络侧接收位置更新通知,所述位置更新通知携带该用户的多播 服务标识和更新前后的位置标识;
网络侧根据位置更新通知 , 修改该多播服务的用户位置信息。 一种确定多播服务的用户位置信息的方法, 该方法包括: 在网络侧为多播服务设置用户位置信息,用于记录多播服务的用 户在网络的位置分布;
网络侧根据多播服务的用户位置信息 ,在该多播服务的位置区域 发布包含所述多播服务标识的寻呼消息;
保存所述多播服务标识的用户作出寻呼响应, 网络侧接收该寻呼 响应, 获知该用户的位置。
一种确定多播服务的用户位置信息的系统, 该系统包括: 第一网络实体, 保存为多播服务设置的用户位置信息, 所述用户 位置信息记录有多播服务的用户在网络的位置分布;
第二网络实体, 接收并根据位置更新通知, 修改该多播服务的用 户位置信息,所述位置更新通知携带用户的多播服务标识和更新前后 的位置标识。
一种确定多播服务的用户位置信息的系统, 该系统包括: 第一网络实体, 保存为多播服务设置的用户位置信息, 所述用户 位置信息记录有多播服务的用户在网络的位置分布;
第二网络实体, 根据多播服务的用户位置信息, 在该多播服务的 位置区域发布包含所述多播服务标识的寻呼消息;
第三网络实体,接收保存有所述多播服务标识的用户终端作出的 寻呼响应, 获知该用户的位置。
由上述技术方案可见,本发明的这种确定多播服务的用户位置信 息的方法和系统, 使得网络侧能够准确、 系统地获知与多播服务相关 的用户位置信息 , 以利于网络侧能够针对用户所在的位置区域触发多 播服务, 以及与多播服务相关的其它业务, 例如发布订阅升级活动通告 或针对性地进行业务宣传等。 附图简要说明
图 1是现有技术的无线网络结构图。
图 2是本发明第一实施例的流程图。
图 3是本发明第二实施例的流程图。
图 4是本发明第三实施例的流程图。
图 5是本发明第四实施例的流程图。
图 6是本发明第五实施例的流程图。 实施本发明的方式
以下参照附图并举实施例, 对本发明的内容进行伴细说明。
在图 1 中, UE是终端。 一般情况下, 提供多播服务的无线网络包 括以下实体(以下将无线网络称为网络侧):
RAN是接入网。 MME是移动管理实体, 负责 UE的移动性管理。 UPE是用户面实体, 其中 UPE-C 负责用户面的信令处理, UPE-U 负责用户面的数据处理。 具体应用时, UPE是核心网中负责数据传输的 实体,也可以通过它连接包括 internet的 PDN。支持多播广播能力的 UPE 称为 Multicast UPE, 它在 Multicast Controller的协助下提供多播广播能 力。 当然, 并不是所有的 UPE都需要支持多播广播能力。
GW是网关。 HSS是本网用户管理服务器, 可以用于 多播服务 用户的订阅信息等。
当所述无线网络为 UMTS网络时, MME的功能由 SGSN实现, UPE 由 SGSN和 GGSN实现, GW由 GGSN实现。 结合图 1所示的无线网络, 本发明中确定多播服务的用户位置信息 的流程见下面的描述。 可以理解的是, 本领域技术人员通过本发明在一 般的无线网络中的应用, 能够推而得知本发明在 UMTS 网络等中的应 用。
参阅图 2, 本发明第一实施例的流程包括:
步骤 210: 在网络侧设置多播服务的用户位置表, 以记录多播服务 在各个位置区域下的用户数目。
一般情况下, 所述多播服务的用户位置表可以设置在 HSS中, 该用 户位置表的内容包括: 某个多播服务对应的位置区域信息及该位置区域 内的用户数目, 其中多播服务标识可作为表头或者一个表项予以记录。 用户位置表的设置参考表 1 , 其格式可根据需要灵活改变。
表 1
Figure imgf000007_0001
步骤 212: 网络侧对 UE的多播服务进行鉴权, 并根据多播服务的 鉴权结果处理所述多播服务的用户位置信息。 所述处理可以是修改、 删 除、 更新等操作。
本实施例中, 由 HSS对 UE的多播服务进行鉴权。 具体执行时, 可 以有两种方式触发所述鉴权:
其一、 由位置注册流程中的鉴权信令触发。 一般而言, HSS中保存 有业务支持列表, 用于记录该用户所获准的业务, 例如是否支持 PS域、 是否支持彩信等信息。 本实施例在该业务支持列表中增加一项记录, 用 于保存用户对某个或某些多播月良务的订阅情况。位置注册流程中, MME 会将用户的身份标识 , 如国际移动用户标识( IMSI , International Mobile Subscriber Identity )通过鉴权信令送到 HSS , 触发 HSS对用户的鉴权。 HSS在对用户进行身份鉴权的同时, 还会查看该用户的业务支持列表, 针对其中记录的多播服务分别进行鉴权。 所述对多播服务进行鉴权包 括: 查看用户的交费情况, 检查用户订阅是否过期等, 进而判断用户是 否有权接收该多播服务。
其二、 由 HSS根据事件或时间条件进行触发。 比如: HSS可以在一 次多播服务结束之后, 对用户的多播服务进行鉴权; 或者, 在特定时间 例如每月的某个时间对用户的多播服务进行鉴权。
根据多播服务的鉴权结果处理多播服务的用户位置表, 具体为: 对 于本次鉴权前后都获准的多播服务, 将原位置区域(TA )对应的用户数 目减 1 , 现 TA对应的用户数目增 1; 对于上次获准, 本次拒绝的多播服 务, 将原 TA对应的用户数目减 1; 对于上次拒绝, 本次获准的多播服 务, 将现 TA对应的用户数目增 1。
如果某个 TA对应的用户数目减 1后为 0, 则在用户位置表中删除 该 TA对应的表项。 如果要修改某个 TA的用户数目时, 发现用户位置 表中没有该 TA对应的表项, 则在该表中新增该 TA对应的表项。
步骤 214: 网络侧根据所述多播服务的用户位置表, 获知哪些位置 区域存在对该多播服务感兴趣的用户。
比如, GW通过查询 HSS中的用户位置表, 即可获知哪些 TA中存 在对某个多播服务感兴趣的用户, 进而获知这些用户的位置信息。
得知用户的位置信息后, 网络侧可以针对 UE所在的位置区域触发 多播服务及与多播服务相关的其他业务, 例如发布订阅升级活动通告或 针对性地进行业务宣传等。
如果一个用户订阅了多个多播服务,比如多播服务 TMGI1、 TMGI2、 TMGI3。 当该用户发生位置区域变化, 从 TA1移动到 TA2, 该 UE会发 起位置更新流程。 之后, HSS对 UE进行鉴权, 并对自身存储的用户位 置表进行更新, 比如: 在 TMGI1、 TMGI2、 TMGI3对应的用户位置表 中, 将 TA1对应的用户数目减 1 , TA2对应的用户数目增 1。
进一步地, HSS也对 UE的多播服务进行鉴权。 假设: 在位置区域 变化前的鉴权中, TMGI1和 TMGI2获准使用, 本次鉴权中 TMGI1和 TMGI3获准使用。 那么, 根据上述鉴权结果, HSS对用户位置表进行修 改, 具体为:
在 TMGI1对应的用户位置表中, 将 TA1对应的用户数目减 1 , 如 果此时为 0, 则删除该表项; 将 TA2对应的用户数目增 1 , 如果此时没 有 TA2对应的表项, 则增加该表项并将用户数目置为 1。
在 TMGI2对应的用户位置表中, 将 TA1对应的用户数目减 1 , 如 果此时为 0, 则删除该表项。
在 TMGB对应的用户位置表中, 将 TA2对应的用户数目增 1 , 如 果此时没有 TA2对应的表项, 则增加该表项并将用户数目置为 1。
可以看出, 本实施例的这种确定多播服务的用户位置信息的方法, 使得网络侧能够准确、 系统地获知与多播服务相关的用户位置信息。 这 样, 网络侧就能够针对用户所在的位置区域触发多播服务, 以及与多播 服务相关的其它业务, 例如发布订阅升级活动通告或针对性地进行业务 宣传等。
图 3示出的是本发明第二实施例的流程。 当网络开展某项多播服务 时, 它为该多播服务分配一个多播服务标识, 如 TMGI标识。
步骤 310: 当某个用户订阅该多播服务时, 网络侧将用户订阅的多 播服务标识(比如 TMGI )记录在 HSS中。 具体为: 记录在 HSS中为 该用户设置的业务支持列表内 , 所述业务支持列表一般用于记录某个用 户所支持的业务, 例如是否支持 PS域、 是否支持彩信等信息。 本发明 的实施例中, 可以在业务支持列表增加一项记录, 保存用户对多播服务 的订阅青况。
同时, 网络侧也将所述多播服务标识提供给该用户使用的 UE。 网 络侧将 TMGI提供给 UE的方法有两种: 一是鉴权完毕后, 如果 TMGI 有更改, 则将新 TMGI提供给用户; 二是在用户订阅时分发给该用户。
步骤 312: 网络发布寻呼消息, 所述寻呼消息包含多播服务标识, 要求保存有相同的多播服务标识的 UE作出回应。
步骤 314: 对于收到寻呼消息的 UE而言, 如果自身保存有相同的 多播服务标识, 该 UE将作出寻呼响应。
步骤 316: 网络收到寻呼响应, 据此得知 UE所在的位置区域。 需要说明的是, 上述流程也可以包括鉴权功能, 并且不限定鉴权和 寻呼之间的执行顺序, 即鉴权可以在寻呼之前完成, 也可以在寻呼之后 完成。 此处, 鉴权功能指的是对用户接收多播服务的权利进行鉴定, 该 鉴权功能可以有两种触发方式: 在位置注册流程进行多播服务鉴权, 或 者通过时间或事件触发鉴权。
图 4示出本发明第三实施例的流程。 本实施例中, 网络侧在发出寻 呼消息前, 对用户的多播服务进行鉴权。 需要说明的是, 网络开展某项 多播服务时, 会为该多播服务分配一个多播服务标识。 当用户订阅该多 播服务时,所订阅的多播服务标识会记录在该用户在 HSS上的业务支持 列表内。
步骤 410: 当 UE的位置区域发生改变时, UE向网络侧发起位置更 新请求。 该位置更新请求携带 UE的位置信息 TA及身份标识, 所述身 份标识可以是 P-TMSL
步骤 412: 网络侧的 MME接收到所述位置更新请求, 根据其中的 P-TMSI, 将该 UE的永久身份标识( IMSI )送给 HSS。
步骤 414: HSS对 UE进行身份鉴权, 并根据 HSS中保存的业务支 持列表,对该 UE的多播服务进行鉴权。如果所述多播服务的鉴权通过,
HSS将该 UE获准接收的多播服务标识发给 MME。
此后, MME在位置更新接受消息中, 将 UE获准接收的所有多播 服务标识返回给 UE。
步骤 416: UE收到位置更新接受消息后, 进行相应处理, 比如删除
UE 当前记录的所有 TMGI, 并记录位置更新接受消息中包含的所有
TMGI。 一般情况下, UE中设置有多播服务标识列表, 用于保存多播服 务标识。
步骤 418: 多播服务开始时, 网络侧向 UE发送 MBMS寻呼消息。 所述寻呼消息携带多播服务标识, 要求保存有相同的多播服务标识的 UE作出寻呼响应。
步骤 420: UE收到该寻呼消息后 , 将寻呼消息中的多播服务标识与 UE中保存的多播服务标识列表进行比对,如果 UE中保存有相同的多播 服务标识, UE就会作出寻呼响应, 并在寻呼响应中包含 UE的身份标识 和多播服务标识。
步骤 422: 网络侧根据收到的寻呼响应, 得知 UE的位置信息, 并 针对 UE所在的位置区域触发其它业务, 例如发布订阅升级活动通告或 针对性地进行业务宣传等。
图 5示出的是本发明第四实施例的流程。 本实施例中, 网络侧也是 在寻呼前对用户的多播服务进行鉴权, 但是鉴权触发方式与第三实施例 有所不同。
步骤 510: 网络侧为某个多播服务设定鉴权触发条件。 所述鉴权触 发条件可以是事件,比如在每次多播服务结束之后触发;也可以是时间, 比如在每月的固定时间触发。
步骤 512: 当所设置的事件或时间条件满足时, 网络侧对多播服务 进行鉴权。
此处,对多播服务进行鉴权的操作可以由网络侧的 HSS完成。具体 为: 针对某个多播服务, HSS将根据业务支持列表对订阅该多播服务的 UE进行鉴权。
步骤 514: 鉴权通过后, 向 UE发送携带鉴权结果的通知消息, 该 鉴权结果包括: 用户的 IMSI、原授权的多播服务标识、现授权的多播服 务标识。
步骤 516: UE收到所述通知消息,删除自身保存的原授权的多播服 务标识 , 并保存现授权的多播服务标识。
步骤 518: 当希望获知多播服务的用户位置信息时, 网络侧向 UE 发出 MBMS寻呼消息, 该寻呼消息包含当前的多播服务标识。
步骤 520: UE收到寻呼消息后, 将该消息中的 TMGI与 UE中保存 的 TMGI列表进行比对, 如果有相同的 TMGI记录在 UE保存的 TMGI 列表中, 则 UE响应该寻呼消息, 并在寻呼响应中包含 UE的身份标识 和多播服务标识。
步骤 522: 网络侧收到寻呼响应, 获知该多播服务用户所在的位置 区域, 针对 UE所在的位置区域触发其它业务, 例如发布订阅升级活动 通告或针对性地进行业务宣传等。
图 6示出本发明第五实施例的流程。 本实施例中, 鉴权在寻呼之后 进行。 此时, 网络不能通过寻呼方式对 UE保存的多播服务标识进行更 新。 本实施例中, 为获取用户的位置信息, 网络侧会直接对 UE进行寻 呼。
步骤 610: 网络开展某项多播服务时, 为该多播服务分配一个多播 服务标识。 当某个或某些用户订阅该多播服务时, 将所述用户订阅的多 播服务标识记录在 HSS上为该用户设置的业务支持列表中,并将该多播 服务标识提供给该用户的 UE, 所述 UE保存该多播服务标识。
一般情况下, UE中设置有多播服务标识列表, 该列表用于保存 UE 订阅的多播服务标识。
步骤 612: 网络侧发送寻呼消息, 所述寻呼消息包含多播服务标识。 步骤 614: UE收到该寻呼消息后, 将寻呼消息中的多播服务标识与 该 UE中保存的多播服务标识列表进行比对。 如果 UE的多播服务标识 列表中保存有寻呼消息中的多播服务标识, UE向网络侧发出寻呼响应, 该寻呼响应包括用户的 IMSI、 多播服务标识等信息。
步骤 616: 网络收到寻呼响应, 将用户的 IMSI及 TMGI标识送到 HSS进行鉴权,根据鉴权结果确定用户是否有权接收该多播服务。此外, 在获知多播服务用户的位置区域后, 网络侧将鉴权结果返回给 MME。
步骤 618: MME将鉴权结果发送给 UE。
步骤 620: UE收到鉴权结果后,修改自身保存的多播服务标识列表。 如果用户无权接收该多播服务, 则从多播服务标识列表中删除该 TMGI标识。 如果网络进行 TMGI标识的重分配, 比如将 CCTV5的标 识从 TMGI1改为 TMGI2, 在用户鉴权通过的情况下, 发送给 UE的鉴 权结果可以携带有旧多播服务标识 TMGI1和新多播服务标识 TMGI2。
此外 ,本发明的实施例提供一种确定多播服务的用户位置信息的 系统, 该系统包括:
用户终端, 在出现位置更新时发出位置更新通知, 该位置更新通 知携带用户的多播服务标识和更新前后的位置标识;
第一网络实体, 保存为多播服务设置的用户位置信息, 所述用户 位置信息记录有多播服务的用户在网络的位置分布; 第二网络实体, 根据位置更新通知, 修改该多播服务的用户位置 信息。
其中, 第一网络实体为 HSS , 第二网络实体为 GW或 MME。 当 然,在具体应用时,第一网络实体和第二网络实体也可以都采用 MME 实现。
本发明的实施例还提供一种确定多播服务的用户位置信息的系 统, 该系统包括:
用户终端, 接收寻呼消息, 根据自身保存的多播服务标识作出寻 呼响应;
第一网络实体, 保存为多播服务设置的用户位置信息, 所述用户 位置信息记录有多播服务的用户在网络的位置分布;
第二网络实体, 根据多播服务的用户位置信息, 在该多播服务的 位置区域发布包含所述多播服务标识的寻呼消息;
第三网络实体, 寻呼响应获知用户位置。
从以上实施例不难得出, 本发明实施例提供的方法和系统使得网 络侧能够准确、 系统地获知与多播服务相关的用户位置信息。 这样, 网 络侧就能够针对用户所在的位置区域触发多播服务, 以及与多播服务相 关的其它业务。
本发明的实施例中所述的 HSS实体不限于 3GPP网络内的 HSS实 体, 也可以是位于其它网络中具有同等或类似功能的网络实体。 再有, 将上述实施例的流程应用到 UMTS网络时, 以上描述中提到的 MME为 SGSN, UPE为 SGSN和 GGSN, GW为 GGSN。 本领域技术人员通过 以上描述可以得知本发明的实施例在 UMTS 网络的应用, 在此不再赞 述。
以上所述, 仅为本发明的较佳实施例而已, 并非用于限定本发明的 保护范围。

Claims

权利要求书
1、 一种确定多播服务的用户位置信息的方法, 其特征在于, 该 方法包括:
在网络侧为多播服务设置用户位置信息,用于记录多播服务的用 户在网络的位置分布, 根据用户位置信息发布多播服务;
网络侧接收位置更新通知,所述位置更新通知携带用户的多播服 务标识和更新前后的位置标识;
网络侧根据位置更新通知 , 修改该多播服务的用户位置信息。
2、 如权利要求 1所述的方法, 其特征在于, 所述多播服务的用 户位置信息包括多播服务标识、 位置区域及用户数目信息;
所述根据用户位置信息发布多播服务包括:根据多播服务标识确 定与该多播服务对应的用户位置信息,在该用户位置信息记录的位置 区域发布所述多播服务。
3、 如权利要求 1或 2所述的方法, 其特征在于, 进一步包括: 网络侧根据用户位置信息发起与多播服务相关的业务,所述与多播服 务相关的业务包括: 订阅升级活动和 /或服务策略调整。
4、 如权利要求 1所述的方法, 其特征在于, 所述网络侧根据位 置更新通知修改多播服务的用户位置信息包括:
网络侧根据位置更新通知中携带的多播服务标识,确定与所述多 播服务对应的用户位置信息,将所述用户位置信息中更新前的位置标 识对应的用户数目减 1, 更新后的位置标识对应的用户数目加 1。
5、 如权利要求 1所述的方法, 其特征在于, 进一步包括: 用户订阅多播服务, 网络侧对该用户的多播服务进行鉴权, 根据 鉴权结果修改该多播服务的用户位置信息。
6、 如权利要求 5所述的方法, 其特征在于, 所述网络侧对用户 的多播服务进行鉴权由该用户的身份鉴权信令触发;或者由预先设置 的时间或事件条件触发。
7、 如权利要求 6所述的方法, 其特征在于, 所述网络侧对用户 的多播服务进行鉴权包括:
在网络侧为用户设置业务支持列表, 记录该用户订阅的多播服 务;
网络侧被触发后, 对业务支持列表中记录的多播服务进行鉴权。
8、 如权利要求 5-7任一项所述的方法, 其特征在于, 所述根据 鉴权结果修改多播服务的用户位置信息包括:
获取上次鉴权和本次鉴权的鉴权结果;
如果上次鉴权和本次鉴权都获准,将该用户更新前的位置标识对 应的用户数目减 1 , 更新后的位置标识对应的用户数目加 1 ;
如果上次鉴权获准、 本次鉴权拒绝, 将更新前的位置标识对应的 用户数目减 1 ;
如果上次鉴权拒绝、 本次鉴权获准, 将更新后的位置标识对应的 用户数目加 1。
9、 一种确定多播服务的用户位置信息的方法, 其特征在于, 该 方法包括:
在网络侧为多播服务设置用户位置信息,用于记录多播服务的用 户在网络的位置分布;
网络侧根据多播服务的用户位置信息 ,在该多播服务的位置区域 发布包含所述多播服务标识的寻呼消息;
保存所述多播服务标识的用户作出寻呼响应, 网络侧接收该寻呼 响应, 获知该用户的位置。
10、 如权利要求 9所述的方法, 其特征在于, 进一步包括: 网络 在用户订阅多播服务时, 将所订阅的多播服务标识分发给该用户。
11、 如权利要求 9所述的方法, 其特征在于, 进一步包括: 在发出寻呼消息前, 网络侧对用户的多播服务进行鉴权, 在鉴权 通过后将鉴权结果返回给用户, 所述鉴权结果携带多播服务标识; 用户根据鉴权结果更新自身保存的多播服务标识列表。
12、 如权利要求 9所述的方法, 其特征在于, 进一步包括: 网络侧收到用户的寻呼响应后 ,根据该用户的多播服务标识及身 份标识进行鉴权, 将鉴权结果返回给用户;
用户根据鉴权结果更新自身保存的多播服务标识列表。
13、 如权利要求 11或 12所述的方法, 其特征在于, 所述对用户 的多播服务进行鉴权由该用户的身份鉴权信令触发;或者由预先设置 的时间或事件条件触发。
14、 如权利要求 11或 12所述的方法, 其特征在于, 所述网络侧 对用户的多播服务进行鉴权包括:
在网络侧为用户设置业务支持列表, 记录该用户订阅的多播服 务;
网络侧被触发后, 对业务支持列表中记录的多播服务进行鉴权。
15、 一种确定多播服务的用户位置信息的系统, 其特征在于, 该 系统包括:
第一网络实体, 保存为多播服务设置的用户位置信息, 所述用户 位置信息记录有多播服务的用户在网络的位置分布;
第二网络实体, 接收并根据位置更新通知, 修改该多播服务的用 户位置信息,所述位置更新通知携带用户的多播服务标识和更新前后 的位置标识。
16、 如权利要求 15所述的系统, 其特征在于, 所述第一网络实 体为 HSS , 第二网络实体为 GW或 MME。
17、 如权利要求 15所述的系统, 其特征在于, 所述第一网络实 体和第二网络实体为 MME。
18、 如权利要求 15所述的系统, 其特征在于, 进一步包括: 用户终端, 在出现位置更新时, 发出携带有用户的多播服务标识 和更新前后的位置标识的位置更新通^1
19、 一种确定多播服务的用户位置信息的系统, 其特征在于, 该 系统包括:
第一网络实体, 保存为多播服务设置的用户位置信息, 所述用户 位置信息记录有多播服务的用户在网络的位置分布;
第二网络实体, 根据多播服务的用户位置信息, 在该多播服务的 位置区域发布包含所述多播服务标识的寻呼消息;
第三网络实体,接收保存有所述多播服务标识的用户终端作出的 寻呼响应, 获知该用户的位置。
PCT/CN2007/070090 2006-06-23 2007-06-07 Procédé et système de décision d'informations de localisation d'abonné de service multidiffusion WO2008000171A1 (fr)

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