WO2007019773A1 - Procede et systeme d'interrogation de l'etat d'itinerance de l'utilisateur appele - Google Patents

Procede et systeme d'interrogation de l'etat d'itinerance de l'utilisateur appele Download PDF

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Publication number
WO2007019773A1
WO2007019773A1 PCT/CN2006/001849 CN2006001849W WO2007019773A1 WO 2007019773 A1 WO2007019773 A1 WO 2007019773A1 CN 2006001849 W CN2006001849 W CN 2006001849W WO 2007019773 A1 WO2007019773 A1 WO 2007019773A1
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WO
WIPO (PCT)
Prior art keywords
roaming
user
called user
information
call
Prior art date
Application number
PCT/CN2006/001849
Other languages
English (en)
French (fr)
Inventor
Bingfu Wang
Shaobo Zhang
Original Assignee
Huawei Technologies Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co., Ltd. filed Critical Huawei Technologies Co., Ltd.
Priority to EP06775217A priority Critical patent/EP1916832A4/en
Publication of WO2007019773A1 publication Critical patent/WO2007019773A1/zh
Priority to US12/032,195 priority patent/US20080139202A1/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/42—Systems providing special services or facilities to subscribers
    • H04M3/42348—Location-based services which utilize the location information of a target
    • H04M3/42357—Location-based services which utilize the location information of a target where the information is provided to a monitoring entity such as a potential calling party or a call processing server
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M2201/00—Electronic components, circuits, software, systems or apparatus used in telephone systems
    • H04M2201/14—Delay circuits; Timers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M2203/00—Aspects of automatic or semi-automatic exchanges
    • H04M2203/60—Aspects of automatic or semi-automatic exchanges related to security aspects in telephonic communication systems
    • H04M2203/6009—Personal information, e.g. profiles or personal directories being only provided to authorised persons
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M2207/00—Type of exchange or network, i.e. telephonic medium, in which the telephonic communication takes place
    • H04M2207/18—Type of exchange or network, i.e. telephonic medium, in which the telephonic communication takes place wireless networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M2242/00—Special services or facilities
    • H04M2242/14—Special services or facilities with services dependent on location
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/42—Systems providing special services or facilities to subscribers
    • H04M3/42025—Calling or Called party identification service
    • H04M3/42034—Calling party identification service
    • H04M3/42059—Making use of the calling party identifier
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/42—Systems providing special services or facilities to subscribers
    • H04M3/42025—Calling or Called party identification service
    • H04M3/42085—Called party identification service
    • H04M3/42093—Notifying the calling party of information on the called or connected party
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/42—Systems providing special services or facilities to subscribers
    • H04M3/42025—Calling or Called party identification service
    • H04M3/42085—Called party identification service
    • H04M3/42102—Making use of the called party identifier
    • H04M3/4211—Making use of the called party identifier where the identifier is used to access a profile
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/42—Systems providing special services or facilities to subscribers
    • H04M3/42365—Presence services providing information on the willingness to communicate or the ability to communicate in terms of media capability or network connectivity

Definitions

  • the present invention relates to the field of mobile communications, and more particularly to a method and system for prompting a called user to roam state.
  • a mobile communication system each user has its own home zone, and when it is outside the home zone, the user is in a roaming state.
  • the existing mobile communication system can support the user's roaming capability, that is, when the mobile user is in a roaming area outside the home zone, it can still communicate with other users and answer calls initiated by other users.
  • the main object of the present invention is to provide a method and system for prompting a called user to roam state, so that the calling user can know the roaming status information of the called user when initiating the call, and accordingly decides to continue this time. Call or terminate this call.
  • the technical solution of the present invention is specifically implemented as follows: A method for prompting a called user to roam state, the method includes: the calling user initiates a call to the called user to the network side; the network side receives the After the call is requested, the current state of the called user is judged, and when it is determined that the called user is in the roaming state, the roaming state information of the called user is obtained and provided to the calling user.
  • the step of obtaining the roaming status information of the called user and providing the information to the calling user includes: determining a roaming area of the called user, and setting the location description information of the roaming area to the roaming status information and sending the information to the calling user.
  • the step of determining the roaming area of the called user includes: acquiring a network device identifier or a location area identifier currently providing a service to the called user; and positioning the roaming area of the called user according to the network device identifier or the location area identifier.
  • each privacy disclosure level corresponds to a permission to obtain location description information.
  • the method further includes: obtaining, according to a privacy disclosure level of the calling user that initiated the call, location description information of the roaming area of the called user corresponding to the permission, and transmitting the location description information to the calling user.
  • the step of obtaining the roaming status information of the called user and providing the calling user to the calling user further includes: determining a local time of the roaming area of the called user, and placing the information in the roaming status information and sending the information to the calling user.
  • a system for prompting a called user to roam state comprising a GMSC connecting a user; the system further comprising: a roaming identification device, configured to store roaming status information of the called user; and when the GMSC receives the call request, the roaming identification device The current state of the called user of the call is judged, and when it is determined that the called user is in the roaming state, the roaming state information of the called user is obtained and provided to the calling user of the call.
  • the roaming identification device includes: a user database SDB, a roaming location information database RLDB, and a roaming information server RIS;
  • the user database SDB is configured to store a user home zone attribute and user privacy management information
  • the roaming location information database RLDB is configured to store location description information of a called user roaming area
  • the roaming information server RIS and SDB, RLDB, GMSC Connect and obtain the roaming status information of the called user by querying SDB and RLDB, and provide it to GMSC.
  • the roaming identification device includes: a user database SDB, a roaming location information database RLDB, and a service control point SCP;
  • the user database SDB is configured to store user home zone attributes and user privacy management information
  • the roaming location information database RLDB is configured to store location description information of the called user roaming area
  • the service control point SCP stores the called user's location information.
  • the roaming prompt service logic is configured to control the GMSC that is triggered to perform the roaming prompt service, and obtain the roaming status information of the called user by querying the SDB and the RLDB, and provide the information to the GMSC.
  • the method and system for prompting a user to roam state according to the present invention, after the calling user initiates a call, the network side will be the roaming state information of the called user, such as the roaming area of the called user.
  • the standard time difference, etc. is sent to the calling user, so that the calling user can know the current status of the called user in time, and accordingly decide whether to continue the call or terminate the call. Therefore, the method of the present invention can prevent the calling user from initiating a call at an inappropriate time, or cause the calling user to give up some unimportant calls when learning that the called user is in a roaming state, so as to save the called user's calling fee.
  • the network side can directly use the information to process the call, such as rejecting the call or accepting the call, and notifying the calling user of the processing result, thereby optimizing the call flow.
  • FIG. 1 is a network structure diagram for prompting a roaming state of a called user according to a preferred embodiment of the present invention
  • FIG. 2 is a flow chart of implementing a roaming state prompt of a called user in a preferred embodiment of the present invention
  • FIG. 3 is a network structural diagram showing a roaming state of a called user according to another preferred embodiment of the present invention.
  • FIG. 4 is a flowchart of implementing a roaming state prompt of a called user according to another preferred embodiment of the present invention. Mode for carrying out the invention
  • the calling user initiates a call to the called user.
  • the network side determines the current state of the called user, and determines the called user when the called user is in the roaming state.
  • the roaming status information is provided to the calling user, and the calling user decides whether to continue the call.
  • FIG. 1 is a network structure diagram for prompting a roaming state of a called user in a preferred embodiment of the present invention.
  • the figure only includes a network entity closely related to implementing the present invention, specifically: a mobile switching center. (MSC), Gateway Mobile Switching Center (GMSC), Home Location Register (HLR), Visit Location Register (VLR), User Database (SDB), Roaming Location Information Database (RLDB), and Roaming Information Server (RIS) .
  • MSC Mobile switching center
  • GMSC Gateway Mobile Switching Center
  • HLR Home Location Register
  • VLR Visit Location Register
  • SDB User Database
  • RLDB Roaming Location Information Database
  • RIS Roaming Information Server
  • the mobile switching center is responsible for providing call control services for mobile users in the jurisdiction.
  • the MSC serving the service is called the nick. Call the user to visit the Mobile Switching Center (VMSC).
  • VMSC Mobile Switching Center
  • the gateway mobile switching center is used to perform route query and exchange. After querying the VMSC where the called user is located, the call is routed to the VMSC:.
  • the home location register is used to store data of the mobile user, such as subscription information.
  • the visit location register is used to temporarily store data for mobile users roaming to their jurisdiction.
  • the HLR cooperates with the VLR, the MSC, and the like to complete mobility management for the user.
  • the MSC and VLR can be integrated into the same physical entity, represented as MSC/VLR.
  • the user database stores the data records of the mobile users who subscribe to the roaming alert service.
  • the content stored in each data record includes: user home zone attributes and user privacy management information.
  • the user home area attribute includes: a home area information of the mobile user, which may be represented as an MSC identifier set of the home area, or a location area (LA) identifier set of the MSC jurisdiction area in the home area (the jurisdiction area of one MSC is divided into One or more location areas), or a set of VLR identifiers of the home zone, etc.; further comprising: a standard time difference and/or a time zone of the user's home zone.
  • the standard time difference is the time difference of Greenwich as a reference ground. For example, the standard time difference in Beijing is 8 hours.
  • the user privacy management information includes: a correspondence relationship between a privacy disclosure level and a calling party number. This information is generated when a mobile user signs a "roaming alert service" and can be modified according to the requirements of the mobile user.
  • Table 1 shows the data records of a mobile user (number NO) stored in the user database.
  • the user privacy management information is set to protect the privacy of the mobile user as a called party.
  • the information is combined with the data record stored in the roaming location information database, so that the called user can provide different levels of detail for different calling users.
  • Location description information is used to describe the location of the mobile user as a called party.
  • the roaming location information database is used to store the correspondence between the location description information and the privacy disclosure level of different regions.
  • the location description information includes a country, a province/state, a city, and a time zone, and the location description information of each zone is fixed. Assuming that the location of the area in which the user is located is represented by the device identifier of the MSC currently serving the user, the location description information of the area served by the MSC identified by the device as MSC-ID3 is UK/English/London/0.
  • Table 2 shows the multiple data records in the roaming location information database. It can be seen from Table 2 that different privacy disclosure levels allow different content to be obtained, for example: For MSC-ID1 location description information, privacy disclosure level 1 can only obtain national information, and privacy disclosure level 3 can obtain both countries, Provincial/State and City Letters,
  • the roaming information server is used to connect the SDB, the RLDB, and the GMSC, and queries the SDB and the RLDB according to the request of the GMSC to obtain the roaming status information of the called user. Further, the roaming status information of the called user with different levels of detail may be provided to the GMSC according to the called user number, the calling party number, and the roaming status information includes: a roaming identifier (for indicating whether the called user has roamed ), roaming area, and local time of the roaming area.
  • RIS, SDB, and RLDB are new functional entities introduced on the basis of existing networks to support roaming alert services, so they are collectively referred to as roaming recognition devices. These three functional entities can exist separately or on the same physical entity, such as on the GMSC.
  • the GMSC, the HLR, the RIS, the SDB, and the RLDB are located in a home area of a mobile user. When the mobile user roams, the VMSC is located in the roaming area of the user.
  • FIG. 2 shows a flow of implementing a roaming state prompt of a called user by using the network shown in FIG. 1 in a preferred embodiment of the present invention, which specifically includes the following steps:
  • Steps 201 to 202 The calling user initiates a call, and the call is routed to the GMS (: Step 203 204: The GMSC queries the called party's HLR for the call route according to the called user number carried in the call request, and obtains the call route from the HLR. The routing information of the VMSC currently serving the called user, and the routing information includes the MSRN allocated by the VMSC to the called user. Step 205: The GMSC sends a called roaming information query request to the RIS, where the request includes the primary and called user numbers, and the MSRN of the called user.
  • Step 206 After receiving the called roaming information query request, the RIS queries the SDB and the RLDB according to the primary and called user numbers and the MSRN of the called user, and obtains the roaming status information of the called user, and returns the information to the GMSC.
  • This step is specifically as follows:
  • the RIS queries the SDB according to the called user number and the calling party number, and obtains the attribute of the user's home area of the called user and the privacy disclosure level of the calling user.
  • the RIS derives the MSC identity from the MSRN, and obtains the location description information of the roaming area of the called user.
  • the MSRN is a temporary number that points to the MSC that provides the service to the called user.
  • the MSC identity can be obtained from the first few digits of the MSRN. For example, according to China Mobile's numbering plan, when the MSRN is 8613901220135, the corresponding MSC identity is 8613901220. After that, the RIS compares whether the current location of the called user and the home zone of the user are consistent. If the MSC identity of the current location belongs to the MSC identity set of the home zone, it indicates that the called user is located in the home zone, and roaming does not occur; otherwise, the called user is in a roaming state.
  • the RIS After determining that the called user is in the roaming state, the RIS further queries the RLDB according to the MSC identity, where the RLDB records the correspondence between the MSC identity and the location description information of the area under the jurisdiction of the MSC.
  • the RIS obtains the location description information of the corresponding authority and provides it to the calling user.
  • the called user roaming may also be calculated according to the standard time difference and/or time zone of the called user's home zone, the local time of the called user's home zone, and the standard time difference and/or time zone of the called user's roaming area. Local time in the area. Among them, called The standard time difference and/or time zone of the home zone is stored in the SDB and can be obtained by querying the SDB. Certainly, the local time of the roaming area of the called user may also be obtained by the GMSC directly querying the VMSC of the roaming area of the called user.
  • Step 207 The GMSC performs a called roaming prompt to the calling user, and informs the calling user of the roaming status information of the called user returned by the RIS.
  • the called roaming prompt can be in various ways, such as voice prompts, message prompts or signaling notifications.
  • Step 208 210 After the calling user receives the called roaming prompt, if the call is abandoned, the GMSC terminates the current call.
  • the GMSC will continue to establish the call, specifically: the GMSC initiates a call request to the VMSC by the MSRN of the called user, and routes the call to the VMSC; the VMSC initiates the call to the called user through the base station system. Paging, the called user answers the call, and the calling and called parties establish communication.
  • the MSC can perform a route query again after the calling user determines to continue the call to obtain the new roaming number of the called user, and perform subsequent call setup with the new roaming number.
  • FIG. 3 is a network structural diagram showing a roaming state of a called user in another embodiment of the present invention.
  • the network is implemented based on existing intelligent networks, including: GMSC, VMSC, VLR, HLR, SDB, RLDB, and Service Control Point (SCP).
  • SDB, RLDB and SCP are collectively referred to as roaming identification devices, and SCP and RLDB are managed by SCP.
  • the SDB and RLDB can be set in the SCP as a module of the SCP.
  • the GMSC will query the HLR of the called user, and the HLR will transmit the information related to the called user to the GMSC, including the smart service subscription information and the current location of the called user.
  • the current location of the called user can be represented by an MSC identity or a location area identifier or the like.
  • the GMSC triggers the intelligent service according to the smart service subscription information, and implements the "roaming prompt service" of the called user under the control of the SCP.
  • FIG. 4 is a flowchart of implementing a roaming state prompt of a called user according to another embodiment of the present invention, which specifically includes the following steps:
  • Steps 401 to 402 The calling user initiates a call request to the called user of a certain "roaming prompt service", and the call request is sent to the GMSC.
  • Step 403 The GMSC sends a routing query request to the HLR of the called user, and the HLR transmits the smart service subscription information and the current location of the called user to the GMSC.
  • Step 404 The GMSC triggers the intelligent service according to the smart service subscription information, and transmits related information of the calling party, including the current location of the called user, to the SCP.
  • the GMSC then suspends the call and waits for an instruction from the SCP.
  • Steps 405 to 408 The SCP determines the current state of the called user according to the current location of the called user and the attribute of the user's home zone of the called user, and obtains the called user after determining that the called user is in the roaming state.
  • the location description information of the roaming area is provided to the calling user.
  • the process is specifically as follows:
  • the SCP queries the SDB, obtains the home area information of the called user, and compares it with the current location of the called user to determine whether the called user is in a roaming state, that is, whether the called user is located in the home zone, or Outside the home zone.
  • the SCP queries the RLDB according to the current location of the called user, obtains the location description information of the roaming area of the called user, and selects the information content corresponding to the privacy disclosure level of the calling user, and sends the information content. Prompt to the calling user.
  • the SCP obtains a standard time difference and/or a time zone of the called user's home zone by querying the SDB, and obtains a standard time difference and/or a time zone of the roaming area from the RLDB, and calculates a roaming area according to the local time of the called user's home zone. Local time. Afterwards, the SCP determines whether the local time of the roaming area is within the call restriction time range set by the called user. If the time range falls within the time range, the SCP will prompt the calling user, otherwise the call will continue.
  • the called user can set multiple call restriction time ranges, for example, setting the sleep time to the call restriction time range, and setting corresponding prompt information for each call restriction time range, so as to prompt the calling user in different time ranges. Different content.
  • Step 409 The SCP waits for a response message from the calling user to determine whether to proceed with the call.
  • Steps 410 to 413 After the SCP obtains the response message of the calling user, the SCP performs subsequent processing according to the response message. If the response message is "Abandon Call”, the SCP instructs the GMSC to end the call. If the response message is "continue call”, the subsequent process is the same as the prior art, and the SCP will instruct the GMSC to continue the call connection and establish communication between the primary and the called user.
  • the GMSC can also directly control the GMSC to process the call (reject or accept the call) according to the roaming status information, and notify the calling user of the processing result without waiting for the calling party.
  • User feedback no more details here. For example, if the SCP determines that the local time is within the call restriction time range, it directly controls the GMSC to terminate the call and prompts the calling user.
  • the step of determining the current state of the called user can also be performed by the GMSC, and is not limited to RIS or SCP.
  • the existing positioning system including a satellite positioning system and a system using a cell positioning technology, may be combined to obtain the roaming of the called user. status information.
  • the network side sends the roaming state information of the called user to the calling user. Therefore, the calling user decides to continue the call or terminate the call according to the method, so the method can prevent the calling user from initiating the call at an inappropriate time, or initiate some unimportant calls, thereby saving the called user's call cost. Further, the network side can directly process the call by using the roaming status information, such as rejecting the call or accepting the call, and notifying the calling user of the processing result, thereby optimizing the call flow.

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Databases & Information Systems (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Telephonic Communication Services (AREA)

Description

一种提示被叫用户漫游状态的方法和系统 技术领域 本发明涉及移动通信领域， 尤指一种提示被叫用户漫游状态的方法 和系统。 发明背景 移动通信系统中， 每个用户都有自身的归属区域， 当其位于归属 区域之外时， 该用户处于漫游状态。 现有的移动通信系统能够支持用 户的漫游能力， 即移动用户处于归属区域之外的漫游区域时， 仍能与 其他用户进行通信， 接听其他用户发起的呼叫。
当一个呼叫被发起时， 如果被叫用户处于漫游状态， 将给双方的 通信造成一定问题。比如，主叫用户和被叫用户所在位置的时差较大， 一个是晚上而另一个是白天， 由于呼叫欢方的作息时间不同， 通信将 不太方便。
对主叫用户而言， 在现有的呼叫流程中， 被叫用户是否处于漫游 状态， 以及被叫用户所在位置的当地时间等信息， 对于该主叫用户是 不可见的。 这样， 主叫用户可能会在不恰当的时间， 向被叫用户发起 不重要的呼叫， 导致处于漫游状态的被叫用户不得不接听在不恰当时间 发起的， 或重要程度不高的来电， 并承担高额的漫游通话费用。 发明内容
有鉴于此， 本发明的主要目的在于提供一种提示被叫用户漫游状 态的方法和系统， 使得主叫用户在发起呼叫时， 能够获知被叫用户的 漫游状态信息， 并据此决定继续本次呼叫或者终止本次呼叫。 为达到上述目的， 本发明的技术方案具体是这样实现的： 一种提示被叫用户漫游状态的方法， 该方法包括： 主叫用户向网 络侧发起对被叫用户的呼叫； 网络侧接收到该呼叫请求后， 对被叫用 户的当前状态进行判断， 并在确定被叫用户处于漫游状态时， 获取被 叫用户的漫游状态信息， 提供给主叫用户。
所述获取被叫用户的漫游状态信息并提供给主叫用户的步驟包 括： 确定被叫用户的漫游区域， 并将所述漫游区域的位置描述信息置 于漫游状态信息中发送给主叫用户。
所述确定被叫用户的漫游区域的步骤包括： 获取当前向被叫用户 提供服务的网络设备标识或位置区标识；根据上述网络设备标识或位 置区标识， 定位出被叫用户的漫游区域。
设置一个以上隐私披露级别， 每个隐私披露级别对应一种获取位 置描述信息的权限，隐私披露级别越高，得到的位置描述信息越详细； 为不同的主叫用户分配对应的隐私披露级别；
该方法进一步包括： 根据发起该呼叫的主叫用户的隐私披露级 别， 获取对应权限的被叫用户漫游区域的位置描述信息， 发送给主叫 用户。
所述获取被叫用户的漫游状态信息并提供给主叫用户的步骤进 一步包括： 确定被叫用户漫游区域的当地时间， 置于漫游状态信息中 发送给主叫用户。
一种提示被叫用户漫游状态的系统， 包括连接用户的 GMSC; 该 系统还包括： 漫游识别装置， 用于存储被叫用户的漫游状态信息； 当所述 GMSC接收到呼叫请求时，漫游识别装置对该呼叫的被叫 用户的当前状态进行判断， 并在确定被叫用户处于漫游状态时， 获取 所述被叫用户的漫游状态信息， 提供给该呼叫的主叫用户。 所述漫游识别装置包括： 用户数据库 SDB, 漫游位置信息数据库 RLDB和漫游信息服务器 RIS;
所述用户数据库 SDB 用于存储用户归属区域属性和用户隐私管 理信息；所述漫游位置信息数据库 RLDB用于存储被叫用户漫游区域 的位置描述信息； 所述漫游信息服务器 RIS和 SDB、 RLDB, GMSC 连接， 并通过查询 SDB和 RLDB获得被叫用户的漫游状态信息， 提 供给 GMSC„
所述漫游识别装置包括： 用户数据库 SDB、 漫游位置信息数据库 RLDB和业务控制点 SCP;
所述用户数据库 SDB 用于存储用户归属区域属性和用户隐私管 理信息；所述漫游位置信息数据库 RLDB用于存储被叫用户漫游区域 的位置描述信息； 所述业务控制点 SCP存储有被叫用户的漫游提示 业务逻辑， 用于对被触发执行漫游提示业务的 GMSC进行控制， 并 通过查询 SDB 和 RLDB 获得被叫用户的漫游状态信息， 提供给 GMSC
由上述技术方案可见， 本发明的这种提示被叫用户漫游状态的方 法和系统， 在主叫用户发起某个呼叫后， 由网絡侧将被叫用户的漫游 状态信息， 比如被叫用户漫游区域的标准时差等， 发送给主叫用户， 使得主叫用户能及时了解到被叫用户的当前状态，并据此决定是继续 本次呼叫或者终止本次呼叫。 因此， 本发明的方法可以避免主叫用户 在不恰当的时间发起呼叫，或者使得主叫用户在获知被叫用户处于漫 游状态时， 放弃一些不重要的呼叫， 以节省被叫用户的通话费用。 进 一步地， 网络侧获得被叫用户的漫游状态信息后， 可以直接利用该信 息对呼叫进行处理， 比如拒绝呼叫或接受呼叫， 并将处理结果通知主 叫用户， 从而使呼叫流程更为优化。 附图简要说明
图 1为本发明一个较佳实施例中对被叫用户的漫游状态进行提示 的网络结构图；
图 2为本发明一个较佳实施例中实现被叫用户漫游状态提示的流 程图；
图 3为本发明另一个较佳实施例中对被叫用户的漫游状态进行提 示的网络结构图；
图 4为本发明另一个较佳实施例中实现被叫用户漫游状态提示的 流程图。 实施本发明的方式
为使本发明的目的、 技术方案及优点更加清楚明白， 以下参照附 图并举实施例， 对本发明进一步详细说明。
在本发明中， 主叫用户发起对被叫用户的呼叫， 网络侧接收到该 呼叫请求后， 对被叫用户的当前状态进行判断， 并在确定被叫用户处 于漫游状态时， 将被叫用户的漫游状态信息提供给主叫用户， 由主叫 用户决定是否继续本次呼叫。
图 1显示的是本发明一个较佳实施例中， 用于对被叫用户的漫游 状态进行提示的网络结构图，图中仅包括与实施本发明密切相关的网 络实体，具体为：移动交换中心（ MSC )、关口移动交换中心（ GMSC )、 归属位置寄存器（ HLR )、拜访位置寄存器（ VLR )、用户数据库（ SDB )、 漫游位置信息数据库 （RLDB ) 和漫游信息服务器 （RIS , Roaming Information Server ) 。
其中， 移动交换中心负责为所管辖区域的移动用户提供呼叫控制 服务。 当被叫用户位于漫游区域时， 为其提供服务的 MSC称为该被 叫用户的拜访移动交换中心 （VMSC ) 。
关口移动交换中心用于执行路由查询和交换。 在查询到被叫用户 所在的 VMSC后， 把该呼叫路由到所述 VMSC：。
归属位置寄存器用于存储移动用户的数据， 比如签约信息等。 拜 访位置寄存器用于临时存储漫游到其管辖区域的移动用户的数据。所 述 HLR与 VLR、 MSC等共同完成对用户的移动性管理。通常情况下， MSC和 VLR可以集成在同一个物理实体中， 表示为 MSC/VLR。
用户数据库中存储有签约 "漫游提示业务，， 的移动用户的数据记 录。 每条数据记录中存储的内容有： 用户归属区域属性和用户隐私管 理信息等。
其中， 所述用户归属区域属性包括： 移动用户的归属区域信息， 可以表示为归属区域的 MSC标识集合，或归属区域中 MSC管辖区域 的位置区 （LA )标识集合（一个 MSC的管辖区域划分为一个或多个 位置区） ， 或归属区域的 VLR标识集合等； 还包括： 用户归属区域 的标准时差和 /或时区。 所述标准时差是以格林威治作为参考地的时 差， 比如北京的标准时差是 8小时。
所述用户隐私管理信息包括： 隐私披露级别和主叫用户号码的对 应关系。 该信息是在某个移动用户签约 "漫游提示业务" 时生成的， 可以根据该移动用户的要求进行修改。
表 1显示的是用户数据库中存储的某个移动用户 （号码为 NO ) 的数据记录。 用户号码 NO
用户 归属区域信息 MSC-1 MSC-2 MSC-3
归属 LA-1 LA-2 LA-3 LA-4 LA-5 区域 VLR-1 VLR-2 VLR-3
属性 归属区域标准时差 + 8
用户隐私管理信息 隐私披露级别 主叫用户号码
1 Nl N2
2 N3 N4 N5
3 N7 N8
4 其他
表 1
实际应用中， 设置用户隐私管理信息是为了保障移动用户作为被 叫时的隐私， 该信息和漫游位置信息数据库中存储的数据记录结合， 使得被叫用户能够为不同的主叫用户提供不同详细程度的位置描述 信息。
漫游位置信息数据库用于存储不同区域的位置描述信息和隐私 披露级别的对应关系。 所述位置描述信息包括国家、 省 /州、 城市和 时区等内容， 每个区域的位置描述信息是固定的。 假设用户所在的区 域位置用当前为该用户提供服务的 MSC的设备标识来表示， 则设备 标识为 MSC-ID3的 MSC所服务的区域的位置描述信息为英国 /英格 兰 /伦敦 /0。
表 2显示的是漫游位置信息数据库中的多条数据记录。 从表 2看 出， 不同的隐私披露级别允许获得的内容是不同的， 比如： 对于 MSC-ID1 的位置描述信息， 隐私披露级别 1仅能获得国家信息， 而 隐私披露级别 3可以同时获得国家、 省 /州和城市信,
Figure imgf000008_0001
表 2 漫游信息服务器用于连接 SDB、 RLDB和 GMSC, 并根据 GMSC 的请求查询 SDB和 RLDB, 获得被叫用户的漫游状态信息。 进一步 地， 可以根据被叫用户号码， 主叫用户号码， 得到详细程度不同的被 叫用户的漫游状态信息提供给 GMSC, 所述漫游状态信息包括： 漫游 标识（用于指明被叫用户是否发生漫游）、 漫游区域以及漫游区域的 当地时间等。
RIS、 SDB和 RLDB是在现有网络的基础上引入的新的功能实体， 用于支持漫游提示业务， 故将其统称为漫游识别装置。 这三个功能实 体可以单独存在， 也可以设置在同一个物理实体上， 比如设置在 GMSC上。 所述 GMSC, HLR, RIS, SDB和 RLDB位于某个移动用 户的归属区域， 当该移动用户发生漫游时， 所述 VMSC位于该用户 的漫游区域。
基于图 1所示的网络结构，当 GMSC接收到主叫用户发起的呼叫 请求后， 对被叫用户的当前状态进行检测， 并在确定被叫用户发生漫 游后， 根据被叫用户的漫游号码 （MSRN )得到其漫游状态信息， 再 由 GMSC将该漫游状态信息告知主叫用户。 主叫用户根据被叫用户 的漫游状态信息， 决定是继续本次呼叫， 还是终止本次呼叫。 所以， 该方法能够对呼叫进行优化， 减少资源占用造成的浪费。 图 2显示的 是本发明一个较佳实施例中，利用图 1所示的网络实现被叫用户漫游 状态提示的流程， 具体包括以下步骤：
步骤 201~202： 主叫用户发起呼叫， 该呼叫被路由到 GMS (：。 步骤 203 204: GMSC根据呼叫请求中携带的被叫用户号码， 向 被叫用户的 HLR查询呼叫路由，并从 HLR得到当前为该被叫用户提 供服务的 VMSC的路由信息， 所述路由信息包含 VMSC为该被叫用 户分配的 MSRN。 步骤 205: GMSC向 RIS发出被叫漫游信息查询请求， 该请求包 括主、 被叫用户号码， 以及被叫用户的 MSRN。
步骤 206: RIS接收到该被叫漫游信息查询请求后， 根据主、 被 叫用户号码、 被叫用户的 MSRN查询 SDB和 RLDB , 得到该被叫用 户的漫游状态信息， 返回给 GMSC；。
该步骤具体为：
1 ) RIS根据被叫用户号码和主叫用户号码查询 SDB, 得到被叫 用户的用户归属区域属性， 和主叫用户的隐私披露级别。
2 ) RIS从 MSRN中导出 MSC标识， 得到被叫用户漫游区域的位 置描述信息。
根据现有规定， MSRN是一个临时号码， 指向为被叫用户提供服 务的 MSC, 从 MSRN的前若干位数字就可以得到 MSC标识。 比如， 按照中国移动的编号方案， 当 MSRN为 8613901220135时， 对应的 MSC标识是 8613901220。 之后， RIS比较被叫用户的当前位置和该 用户的归属区域是否一致。 如果当前位置的 MSC标识属于归属区域 的 MSC标识集合， 则表明被叫用户位于归属区域， 没有发生漫游； 否则， 被叫用户处于漫游状态。
确定被叫用户处于漫游状态后， RIS进一步根据 MSC标识查询 RLDB,所述 RLDB中记录有 MSC标识和该 MSC所管辖区域的位置 描述信息的对应关系。
3 ) RIS根据主叫用户的隐私披露级别 , 获得对应权限的位置描述 信息， 提供给主叫用户。
该步骤 206中，还可以根据被叫用户归属区域的标准时差和 /或时 区， 被叫用户归属区域的当地时间， 以及被叫用户漫游区域的标准时 差和 /或时区， 计算出被叫用户漫游区域的当地时间。 其中， 被叫用 户归属区域的标准时差和 /或时区保存在 SDB中， 可以通过查询 SDB 获得。 当然， 所述被叫用户漫游区域的当地时间， 也可由 GMSC直 接向被叫用户漫游区域的 VMSC查询获得。
步骤 207: GMSC对主叫用户进行被叫漫游提示， 将 RIS返回的 被叫用户的漫游状态信息告知主叫用户。所述被叫漫游提示可以有多 种方式， 比如语音提示、 消息提示或信令通知等。
步驟 208 210: 主叫用户接收到被叫漫游提示后， 如果选择放弃 呼叫， 则 GMSC终止本次呼叫。
当然，如果主叫用户并未放弃呼叫， GMSC还将继续建立该呼叫， 具体为： GMSC以被叫用户的 MSRN向 VMSC发起呼叫请求， 将呼 叫路由到 VMSC; VMSC通过基站系统向被叫用户发起寻呼，被叫用 户进行呼叫应答， 主被叫双方建立通信。
在实际执行上述流程时， 如果查询漫游状态信息和对用户进行提 示的时间过长， MSRN可能会失效。 这样， 即使主叫用户需要继续进 行呼叫， 该呼叫也无法完成。 对于这种情况， MSC 可以在主叫用户 确定继续进行呼叫后， 重新执行一次路由查询， 以获得被叫用户新的 漫游号码， 并以新的漫游号码执行后续的呼叫建立。
图 3是本发明另一个实施例中对被叫用户的漫游状态进行提示的 网络结构图。 该网络是基于现有的智能网实现的， 包括： GMSC、 VMSC、 VLR、 HLR、 SDB, RLDB 和业务控制点 （ SCP ) 。 其中， SDB、 RLDB和 SCP统称为漫游识别装置， 由 SCP对 SDB和 RLDB 进行管理。具体实现时， SDB和 RLDB可以设置在 SCP中，作为 SCP 的一个模块。
需要说明的是， 被叫用户预先签约 "漫游提示业务" 后， 与被叫 用户的 MSC连接的 HLR中就会保存对应的智能业务签约信息。当呼 叫到达 GMSC时， GMSC会向被叫用户的 HLR查询路由， 该 HLR 就将自身存储的与被叫用户相关的信息传送给 GMSC,其中包括智能 业务签约信息和被叫用户的当前位置等 ,所述被叫用户的当前位置可 以用 MSC标识或位置区标识等表示。 之后， GMSC根据智能业务签 约信息触发智能业务， 并在 SCP 的控制下实现被叫用户的 "漫游提 示业务，， 。
基于图 3所示的网络结构， 图 4为本发明另一个实施例中实现被 叫用户漫游状态提示的流程， 具体包括以下步驟：
步驟 401〜402： 主叫用户发起对某个已签约 "漫游提示业务，， 的 被叫用户的呼叫请求， 该呼叫请求被送至 GMSC。
步骤 403: GMSC向所述被叫用户的 HLR发出路由查询请求，该 HLR将被叫用户的智能业务签约信息和当前位置传送给 GMSC。
步骤 404: GMSC根据智能业务签约信息触发智能业务， 将呼叫 双方的相关信息，包括被叫用户的当前位置传送到 SCP。然后， GMSC 挂起呼叫， 等待 SCP的指令。
步骤 405〜408： SCP根据被叫用户的当前位置， 并结合被叫用户 的用户归属区域属性， 对被叫用户的当前状态进行判断， 并在确定被 叫用户处于漫游状态后，获取被叫用户漫游区域的位置描述信息提供 给主叫用户。
上述过程具体为： SCP查询 SDB,得到被叫用户的归属区域信息， 将其与被叫用户的当前位置进行比较，以判断被叫用户是否处于漫游 状态， 即被叫用户是位于归属区域， 还是在归属区域之外。 当被叫用 户在归属区域之外时， SCP根据被叫用户的当前位置查询 RLDB, 获 得被叫用户漫游区域的位置描述信息，并选择出与主叫用户的隐私披 露级别对应的信息内容， 发送给主叫用户进行提示。 进一步地， SCP通过查询 SDB得到被叫用户归属区域的标准时 差和 /或时区， 再从 RLDB获得漫游区域的标准时差和 /或时区， 结合 被叫用户归属区域的当地时间， 计算出漫游区域的当地时间。 之后， SCP 判断所述漫游区域的当地时间是否在被叫用户预先设置的呼叫 限制时间范围之内， 如果落入该时间范围， SCP就会向主叫用户发出 提示， 否则继续执行呼叫。 其中， 被叫用户可以设置多个呼叫限制时 间范围， 比如设置睡眠时间为呼叫限制时间范围， 并分别为每个呼叫 限制时间范围设置对应的提示信息， 以便在不同的时间范围向主叫用 户提示不同的内容。
步骤 409: SCP等待主叫用户的响应消息， 以确定是否继续进行 叫。
步骤 410〜413： SCP得到主叫用户的响应消息后， 根据该响应消 息执行后续处理。 如果响应消息为 "放弃呼叫" ， 则 SCP指令 GMSC 结束本次呼叫。 如果响应消息为 "继续呼叫" ， 则后续过程与现有技 术相同， SCP将指令 GMSC继续执行呼叫接续， 建立主、 被叫用户 之间的通信。
上述流程中， 当 SCP获得被叫用户的漫游状态信息之后，也可以 直接根据漫游状态信息控制 GMSC对呼叫进行处理 （拒绝或接受呼 叫） ， 并将处理结果通知主叫用户， 而不必等待主叫用户的反馈， 此 处不再赘述。 比如， 如果 SCP判断出当地时间在呼叫限制时间范围 之内， 就直接控制 GMSC终止本次呼叫， 并对主叫用户进行提示。
以上仅为本发明的具体实施例， 在实际应用中可进行适当的变 形。 比如， 判断被叫用户当前状态的步骤也可由 GMSC 来执行， 而 不局限于 RIS或 SCP。 又比如， 可以结合现有的定位系统， 包括卫星 定位系统和采用小区定位技术的系统等，来获得所述被叫用户的漫游 状态信息。
由上述的实施例可见， 本发明的这种提示被叫用户漫游状态的方 法和系统， 在主叫用户发起某个呼叫后， 由网絡侧将被叫用户的漫游 状态信息发送给主叫用户，使得主叫用户据此决定是继续呼叫或者终 止呼叫， 故该方法可以避免主叫用户在不恰当的时间发起呼叫， 或者 发起一些不重要的呼叫， 从而节省被叫用户的通话费用。 进一步地， 网络侧可以直接利用漫游状态信息对呼叫进行处理，比如拒绝呼叫或 接受呼叫， 并将处理结果通知主叫用户， 从而使呼叫流程更为优化。

Claims

权利要求书
1、 一种提示被叫用户漫游状态的方法， 其特征在于， 该方法包 括： 主叫用户向网络侧发起对被叫用户的呼叫； 网络侧接收到该呼叫 请求后， 对被叫用户的当前状态进行判断， 并在确定被叫用户处于漫 游状态时， 获取被叫用户的漫游状态信息， 对主叫用户进行提示。
2、 根据权利要求 1 所述的方法， 其特征在于， 所述获取被叫用 户的漫游状态信息并提示主叫用户的步驟包括：
确定被叫用户的漫游区域， 并将所述漫游区域的位置描述信息置 于漫游状态信息中发送给主叫用户。
3、 根据权利要求 2所述的方法， 其特征在于， 所述确定被叫用 户的漫游区域的步骤包括：
获取当前向被叫用户提供服务的网络设备标识或位置区标识； 根 据上述网络设备标识或位置区标识， 定位出被叫用户的漫游区域。
4、 根据权利要求 2所述的方法， 其特征在于， 设置一个以上隐 私披露级别， 每个隐私披露级别对应一种获取位置描述信息的权限， 隐私披露级别越高， 得到的位置描述信息越详细； 为不同的主叫用户 分配对应的隐私披露级别；
该方法进一步包括： 根据发起该呼叫的主叫用户的隐私披露级 别， 获取对应权限的被叫用户漫游区域的位置描述信息， 发送给主叫 用户。
5、 根据权利要求 2至 4任一项所述的方法， 其特征在于， 所述 位置描述信息包括以下至少其中一项： 国家、 省 /州、 城市和时区。
6、 根据权利要求 2所述的方法， 其特征在于， 所述获取被叫用 户的漫游状态信息并提示主叫用户的步骤进一步包括：确定被叫用户 漫游区域的当地时间， 置于漫游状态信息中发送给主叫用户。
7、 根据权利要求 6所述的方法， 其特征在于， 所述确定被叫用 户漫游区域的当地时间的步骤包括：从被叫用户漫游区域的网络设备 中获得该漫游区域的当地时间。
8、 根据权利要求 6所述的方法， 其特征在于， 网络侧记录有各 个网络设备或位置区对应的标准时差和 /或时区信息； 所述确定被叫 用户漫游区域的当地时间的步骤包括：
获取被叫用户漫游区域的网络设备或位置区的标准时差和 /或时 区信息， 被叫用户归属区域的网络设备或位置区的标准时差和 /或时 区信息， 以及被叫用户归属区域的当地时间， 计算出被叫用户漫游区 域的当地时间。
9、 根据权利要求 3， 7或 8所述的方法， 其特征在于， 所述网络 设备为移动交换中心或拜访位置寄存器。
10、 根据权利要求 6所述的方法， 其特征在于， 网络侧预先为被 叫用户设置呼叫限制时间范围，并设置与不同的呼叫限制时间范围对 应的提示信息；
则该方法进一步包括： 根据被叫用户漫游区域的当地时间确定对 应的呼叫限制时间范围，并将与该呼叫限制时间范围对应的提示信息 置于漫游状态信息中， 发送给主叫用户。
11、 根据权利要求 10所述的方法， 其特征在于， 该方法进一步 包括： 网络侧判定被叫用户漫游区域的当地时间在所设置的呼叫限制 时间范围之内时， 终止本次呼叫。
12、 根据权利要求 1所述的方法， 其特征在于， 该方法进一步包 括： 网络侧获取被叫用户的漫游状态信息后， 根据所述漫游状态信息 选择终止本次呼叫， 或者继续本次呼叫。
13、 根据权利要求 1所述的方法， 其特征在于， 该方法进一步包 括： 网络侧判断是否接收到主叫用户取消呼叫的指示消息， 若是则终 止本次呼叫； 否则， 继续本次呼叫。
14、一种提示被叫用户漫游状态的系统，包括连接用户的 GMSC; 其特征在于， 该系统还包括： 漫游识别装置， 用于存储被叫用户的漫 游状态信息；
当所述 GMSC接收到呼叫请求时，漫游识别装置对该呼叫的被叫 用户的当前状态进行判断， 并在确定被叫用户处于漫游状态时， 获取 所述被叫用户的漫游状态信息， 对该呼叫的主叫用户进行提示。
15、 根据权利要求 14所述的系统， 其特征在于， 所述漫游识别 装置包括： 用户数据库 SDB， 漫游位置信息数据库 RLDB和漫游信 息服务器 RIS;
所述用户数据库 SDB 用于存储用户归属区域属性和用户隐私管 理信息；所述漫游位置信息数据库 RLDB用于存储被叫用户漫游区域 的位置描述信息； 所述漫游信息服务器 RIS和 SDB、 RLDB, GMSC 连接， 通过查询 SDB和 RLDB获得被叫用户的漫游状态信息， 提供 给 GMSC。
16、 根据权利要求 14所述的系统， 其特征在于， 所述漫游识别 装置包括： 用户数据库 SDB、 漫游位置信息数据库 RLDB和业务控 制点 SCP;
所述用户数据库 SDB 用于存储用户归属区域属性和用户隐私管 理信息；所述漫游位置信息数据库 RLDB用于存储被叫用户漫游区域 的位置描述信息； 所述业务控制点 SCP存储有被叫用户的漫游提示 业务逻辑， 用于对被触发执行漫游提示业务的 GMSC进行控制， 并 通过查询 SDB 和 RLDB 获得被叫用户的漫游状态信息， 提供给 GMSC。
PCT/CN2006/001849 2005-08-15 2006-07-26 Procede et systeme d'interrogation de l'etat d'itinerance de l'utilisateur appele WO2007019773A1 (fr)

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