WO2010069227A1 - 优化cbus服务器返回结果的方法、cbus服务器 - Google Patents

优化cbus服务器返回结果的方法、cbus服务器 Download PDF

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Publication number
WO2010069227A1
WO2010069227A1 PCT/CN2009/075288 CN2009075288W WO2010069227A1 WO 2010069227 A1 WO2010069227 A1 WO 2010069227A1 CN 2009075288 W CN2009075288 W CN 2009075288W WO 2010069227 A1 WO2010069227 A1 WO 2010069227A1
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Prior art keywords
uri
list
requester
uris
request
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PCT/CN2009/075288
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English (en)
French (fr)
Inventor
常新苗
刘海涛
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华为终端有限公司
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Priority to EP09832909.7A priority Critical patent/EP2360891B1/en
Publication of WO2010069227A1 publication Critical patent/WO2010069227A1/zh

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • H04W4/08—User group management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L61/00—Network arrangements, protocols or services for addressing or naming
    • H04L61/45—Network directories; Name-to-address mapping
    • H04L61/4547—Network directories; Name-to-address mapping for personal communications, i.e. using a personal identifier
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/2866—Architectures; Arrangements
    • H04L67/30—Profiles
    • H04L67/306—User profiles
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/50—Network services
    • H04L67/52—Network services specially adapted for the location of the user terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/50—Network services
    • H04L67/54—Presence management, e.g. monitoring or registration for receipt of user log-on information, or the connection status of the users
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/50—Network services
    • H04L67/56—Provisioning of proxy services
    • H04L67/564—Enhancement of application control based on intercepted application data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/50—Network services
    • H04L67/56—Provisioning of proxy services
    • H04L67/567—Integrating service provisioning from a plurality of service providers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/1066—Session management
    • H04L65/1101—Session protocols
    • H04L65/1104—Session initiation protocol [SIP]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02—Services making use of location information

Definitions

  • the present invention relates to the field of telecommunications technology, and in particular to a method and a CBUS server for optimizing the return result of a CBUS server. Background technique
  • Uniform Resource Identifiers define a standard system for identifying resources, which is defined by the Internet Engineering Task Force (IETF) RFC 3986 (Uniform Resource Identifier Generic Syntax).
  • IETF Internet Engineering Task Force
  • RFC 3986 Uniform Resource Identifier Generic Syntax
  • a URI is an extension of the familiar Uniform Resource Locator (URL), which is used in web browsers and similar programs.
  • the Presence server the information includes the online information of the user, the network bearer information, the client device application capability information, and the user's interests. And mood, etc.;
  • Location information indicates the geographic location of the user, which exists on the Location server. If we want to get a list of users whose status is online near a certain mall, then we need to make judgments and choices based on the user's current presence information and their geographic location information.
  • the current method can only be that the requester first sends a request to the Presence server to obtain the user URI whose status is online, and then The Location server sends a request to obtain the user URI of the geographic location near the mall, and the requester analyzes the users themselves to obtain a user whose status is online near the mall.
  • Such an operation requires the requester to send a request to a different server to obtain a user who satisfies the condition and compare the returned results.
  • the requester needs to know which server holds the information, and the requester's terminal device needs to have different The interface of the server, which brings great inconvenience to the requester.
  • the condition-based user selection CBUS Condition Based URIs Selection
  • the requester can send the requirements or conditions for geographic location, presentation and other information to the CBUS server, and the CBUS server is connected to various information servers. For example, obtaining presence information from the Presence server, obtaining geographic location information from the Location server, and analyzing and synthesizing the results, and transmitting the user URI satisfying the requester's sending condition to the requester, thereby eliminating the need for the requester directly
  • the server handles, just need to submit the requirements to the CBUS server.
  • the basic content of CBUS is to make judgments based on some conditions submitted by the requester, retrieve the information from the server storing the information corresponding to these conditions, and then analyze and evaluate the information and conditions retrieved from different servers, and evaluate the selection.
  • the URI of the object that the requester is looking for, and the final evaluation result is returned to the requester.
  • the conditions submitted by the requester to the CBUS server may be pre-defined to be stored on the XDM server or other file server, or may be defined when the selection request is submitted.
  • CBUS makes user selections, it can either perform a "Snapshot" selection based on conditions and scope, continuously monitor the user's information, and continuously re-select the user based on the updated user information.
  • Get updated selection results which can be up to the condition, or it can be within a specific time.
  • the requester may specify a URI of a single user as a selection range in the request submitted to the CBUS server, or may specify a group URI as a selection range or may not specify a selection range.
  • the group URI refers to a set of URIs, and the group itself is identified by a URI.
  • the inventors have found that: in the prior art, if the requester submits to The CBUS server request does not specify a specific URI selection range or specifies one or several group URIs as the selection range.
  • the CBUS server performs the user request and the evaluated URI list satisfying the selection condition may include the requester's own URI or some URI that the requester does not need.
  • the requester knows whether he or she meets the conditions set by himself, such as whether it is online or not, whether the location is in Beijing, etc., and does not require the CBUS server to analyze whether the URI of the requester meets the requirements of the requester.
  • Condition if the returned result includes the requester's own URI, this causes waste of wireless resources and waste of processing resources on the CBUS server. Summary of the invention
  • the embodiment of the invention provides a method for optimizing the return result of the CBUS server and a CBUS server for solving the problem that the requester obtains a specific URI unnecessarily in the URI selection result obtained from the CBUS server.
  • a method for optimizing a CBUS server return result comprising: receiving a request by a requester to select a user, carrying a selection condition in the request of the selected user, and excluding a specific one from the returned result URI setting;
  • the resulting list of URIs to be returned is returned to the requester.
  • a CBUS server including:
  • a request receiving unit configured to receive a request for selecting a user submitted by the requester, and the request for selecting the user carries a selection condition and a setting for excluding a specific URI from the returned result;
  • An evaluation information obtaining unit configured to evaluate, according to the request of the selected user, a URI list that satisfies all selection conditions
  • a URI evaluation unit configured to evaluate whether the specific URI satisfies all selection conditions in the In the URI list, if yes, the specific URI is deleted from the URI list, and the list of URIs to be finally returned is obtained;
  • the result is returned to the unit for returning the obtained list of URIs to be returned to the requester.
  • the requester can obtain the URI list to be returned from the CBUS server, the URI.
  • the list no longer contains specific ones unnecessarily
  • the URI can save resources for the CBUS server to perform processing and improve the user experience.
  • FIG. 1 is a flowchart of a method for optimizing a CBUS server return result according to Embodiment 1 of the present invention
  • FIG. 2 is a flowchart of a method for optimizing a CBUS server return result according to Embodiment 2 of the present invention
  • FIG. 4 is a schematic structural diagram of a CBUS server according to Embodiment 8 of the present invention
  • FIG. 5 is a schematic structural diagram of another CBUS server according to Embodiment 8 of the present invention. detailed description
  • FIG. 1 is a flowchart of a method for optimizing a CBUS server return result according to Embodiment 1 of the present invention, including:
  • Step 11 The CBUS server receives a request for selecting a user submitted by the requester, and the request of the selected user carries a setting for excluding a specific URI from the returned result.
  • the user may be identified by a URI, and the selected user may be a user URI selection.
  • the particular URI includes the requester's own URI or a URI that the requester has previously known to satisfy the selection condition, such as one or more URIs other than the requester itself.
  • the requester may specify one or several group URIs as the selection range, or the requester may not Specify a specific selection range.
  • Step 12 After receiving the request of the selected user, the CBUS server analyzes the selection condition and obtains information on the corresponding information server. Then, the CBUS server analyzes the retrieved information and the selection condition submitted by the requester, and obtains all the requirements. Select a list of URIs for the condition.
  • Step 13 The CBUS server evaluates whether the specific URI is in the URI list that satisfies all the selection conditions. If yes, the specific URI is deleted from the URI list to obtain a list of URIs to be finally returned.
  • Step 14 The CBUS server returns the obtained list of URIs to be returned to the requester.
  • the method for optimizing the return result of the CBUS server provided by the first embodiment of the present invention can enable the requester to obtain the final return from the CBUS server by carrying the setting of excluding the specific URI from the returned result in the request of the user selecting the user.
  • the URI list, the list of URIs to be finally returned excludes a specific URI, including the requester's own URI or the URI that the requester has previously known to satisfy the selection condition, thereby saving resources for the CBUS server to perform processing and improving the user experience.
  • FIG. 2 is a flowchart of a method for optimizing a CBUS server return result according to Embodiment 2 of the present invention, including:
  • Step 21 The CBUS server receives the request of the selected user submitted by the requester, and does not carry the setting of excluding the specific URI from the returned result in the request of the selected user.
  • the user can be identified by a URI, and the selected user can be a user URI.
  • the requester may specify one or several group URIs as the selection range, or the requester may not specify the specific selection range.
  • Step 22 After receiving the request of the selected user, the CBUS server analyzes the selection condition and obtains information on the corresponding information server. Then, the CBUS server analyzes the retrieved information and the selection condition submitted by the requester, and obtains all the requirements. Select a list of URIs for the condition.
  • Step 23 The CBUS server evaluates whether the requestor's own URI is in the URI list that satisfies all the selection conditions. If yes, the CBUS server determines whether to include the requestor's own URI from the URI list according to the selection condition submitted by the requester. Delete, and get a list of URIs that will eventually be returned.
  • Step 24 The CBUS server returns the obtained list of finally returned URIs to the requester.
  • the method for optimizing the return result of the CBUS server determines whether the requester's own URI is deleted from the obtained URI list satisfying all the selection conditions by the CBUS server according to the selection condition submitted by the requester, so that the requester can be made Obtain the list of URIs to be returned from the CBUS server, which can save resources for the CBUS server to perform processing and improve the user experience.
  • FIG. 3 is a flowchart of a method for optimizing a CBUS server return result according to Embodiment 3 of the present invention, including:
  • Step 31 The CBUS server receives a request from the requester to select a user, and the request of the selected user carries a setting that excludes a specific URI from the returned result.
  • the user may be identified by a URI, and the selected user may be a user URI selection.
  • the particular URI includes the requester's own URI or a URI that the requester has previously known to satisfy the selection condition, such as one or more URIs other than the requester itself.
  • the requester may specify one or several group URIs as the selection range, or the requester may not specify a specific selection range.
  • Step 32 After receiving the request of the selected user, the CBUS server analyzes the selection condition, and sequentially obtains information on different corresponding information servers. Then, the CBUS server analyzes the retrieved information and the current selection condition to obtain the content. A list of URIs for the secondary selection criteria.
  • Step 33 The CBUS server evaluates whether the specific URI satisfies the current selection bar. In the URI list of the piece, if it is, the specific URI is deleted from the URI list, and a list of URIs that meet the current requirement is obtained.
  • Step 34 The CBUS server uses the obtained URI list that meets the current requirement as the URI selection range for obtaining information on different corresponding information servers next time, and repeats steps 32 and 33 until the CBUS server obtains the URI to be finally returned. List.
  • Step 35 The CBUS server returns the obtained list of finally returned URIs to the requester.
  • the method for optimizing the return result of the CBUS server provided by the third embodiment of the present invention is carried in the application scenario in which the user selects the user in the application scenario that the CBUS server needs to sequentially obtain the URI list that meets the selection condition on different corresponding information servers. There is a setting for excluding a specific URI from the returned result. After the CBUS server sequentially obtains a list of URIs satisfying the selection condition on different corresponding information servers, the list of URIs that satisfy the selection condition each time is evaluated.
  • the CBUS server will still evaluate whether the requester's own URI satisfies all the selections in the description. In the conditional URI list, if yes, the CBUS server determines whether to delete the requester's own URI from the URI list according to the selection condition submitted by the requester, and obtains the list of URIs to be finally returned. The method of the results is explained.
  • Alice is a registered member of an online bookstore, hoping to find out who is currently online and who has read the novel ghost like her.
  • Alice searches for the user who meets his own conditions through the CBUS service.
  • Alice initiates a request to select the user from the CBUS server.
  • the request includes three conditions and does not specify a range of URIs to choose from.
  • the three conditions are:
  • the user URI returned by the CBUS server must satisfy these three conditions at the same time.
  • the conditions for the CBUS server to search are: Condition 1 AND Condition 2 AND Condition 3.
  • Alice knows that she is sure to satisfy these three conditions. If Alice's own condition is satisfied by the CBUS server, Alice does not want the CBUS server to return such a result to her, so she also submitted the request. There is an additional condition that excludes herself from the result, ie Exclude her own URI: Sip:Alice@example.com.
  • All the selection conditions received by the CBUS server are: Condition 1 AND Condition 2 AND Condition 3 AND ( Exclude Sip: Alice@example.com ).
  • the CBUS server obtains the member list of the online bookstore from the corresponding information server, and the reading record of the novel ghost, selects the member list that has read the novel, and then obtains the status information of the members on the Presence server that stores the user status information. Select the current online member list, and then remove Alice's URI from the list according to Alice's request. If the list is not empty at this time, return the list to Alice. If the list is empty, then Alice returns information about the result of the unsatisfied condition.
  • Alice and her friends pre-set a group A that includes several friends who often chat together: Alice, Bob, Candy, David, Emily, and Frank.
  • This group A uses URI Sip: Group 1 @example . Com to uniquely identify in the network.
  • Alice wants to chat with the current online friends first initiates a request to select the user to the CBUS server, and the CBUS server selects the current Available status from Group A. friend.
  • Alice's request to the CBUS server includes a selection condition and a group URI with the condition Status: Available and the group URI Sip:Groupl@example.com.
  • the CBUS server When the CBUS server receives Alice's request, it also knows the requester Alice's own URI: Sip: Alice@example.com. The CBUS server first obtains the URI of the member in this group based on the group URI Si : Group 1 ⁇ example . com on the shared group XDM document server (Shared Group XDM Server) that holds the group A information:
  • the CBUS server After obtaining the information of the members in the group, the CBUS server obtains the status information of these members on the Presence server that holds the member status information:
  • the CBUS server analyzes and evaluates the retrieved member status information and the request condition, and obtains the user URI that satisfies the condition: Sip:Alice@example.com and Sip:Bob@example.com; and the CBUS server analyzes the request condition and the requester's URI.
  • the requester must be online, and the requester can determine that he or she is satisfied with the condition.
  • the CBUS server removes the URI of the requester Alice from the list of URIs just obtained, and obtains the URI that is ultimately returned to Alice as Sip. :Bob@example.com.
  • Embodiment 6 If the CBUS server retrieves the member status information and only Alice is online, then the person who does not have to return Alice to the current online is Alice himself, because Alice does not want to have a meaningless result that the object to be chatted is his own URI. Therefore, the embodiment saves wireless resources and improves user experience.
  • Embodiment 6 If the CBUS server retrieves the member status information and only Alice is online, then the person who does not have to return Alice to the current online is Alice himself, because Alice does not want to have a meaningless result that the object to be chatted is his own URI. Therefore, the embodiment saves wireless resources and improves user experience. Embodiment 6
  • Alice and Bob hope to select at least two members from the existing two URI groups who are currently online, whose hobbies are bridges and whose bridge level is intermediate, for them to choose a piece of online bridge.
  • Alice selects their target candidates through the CBUS service.
  • Alice submits a selection request to the CBUS server, including:
  • the URI selection range is two group URIs:
  • the selection criteria are:
  • the complete request received by the CBUS server is: Select the satisfaction condition (condition 1 AND condition 2 AND condition 3) AND ( Exclued Sip:Bob@example.com ) from ( URI group 1 and URI group 2 ).
  • the CBUS server first obtains the specific member information in URI group 1 and URI group 2 from the shared group XDM document server that holds the group information: Group URI member
  • Sip Group l@example.com Sip: Bob@example.com
  • Sip Group2@example.com Sip: Emily@example.com
  • the CBUS server evaluates the retrieved member information, removes the Bob URI, retains the URIs of the remaining five people, and then obtains their online information and hobby information from the Presence server that holds the member's personal information:
  • the CBUS server evaluates the online and hobby information of the retrieved members, while only one of Sip: Emily@example.com satisfies conditions 1 and 2, and does not meet the limit of at least 2 URIs returned in condition 4, so CBUS The server returns to the requester Alice information that the user is not satisfied.
  • Alice needs to send a text message to the camper currently in a camping area, hoping to get the list of URIs of the people currently in the camping area through the CBUS service, but the returned URI list does not need to include the current camping area manager Alice and Bob.
  • the CBUS server After receiving the request submitted by the requester, the CBUS server obtains the user information of the current location in the camping area from the location information server and returns it to the CBUS server. The CBUS server evaluates the obtained information and the request, and deletes the URIs of Alice and Bob from the The list of URIs that satisfy the request is returned to the requester.
  • Embodiment 8 of the present invention provides a CBUS server, including:
  • the request receiving unit 41 is configured to receive a request for selecting a user submitted by the requester to the CBUS server, where the request for selecting the user carries a parameter configuration with a selection condition and a selection manner.
  • the evaluation information obtaining unit 42 evaluates a list of URIs satisfying all the selection conditions according to the request of the selected user.
  • the URI evaluation unit 43 is configured to determine, by the CBUS server, whether the requestor's own URI is in the list of URIs satisfying all the selection conditions, and if so, the CBUS server determines whether to request the requester's own URI from the selection condition submitted by the requester.
  • the URI list is removed and the list of URIs to be returned is finally obtained.
  • the result is returned to unit 44, which is used by the CBUS server to return the resulting list of URIs to be returned to the requester.
  • the URI evaluation unit 43 is further configured to: when the request of the selected user carries a designation that excludes a specific URI from being returned, the CBUS server evaluates whether the specific URI satisfies all the selections in the In the conditional URI list, if it is, the specific URI is deleted from the URI list to obtain a list of URIs to be finally returned.
  • the information acquiring unit 42 includes a first-order or multi-level information acquiring module, and each of the information acquiring modules is configured to acquire information and evaluate, obtain a URI list that satisfies the selection condition, and input the URI list into the The URI evaluation unit obtains a list of URIs that meet the needs of the present time;
  • the URI evaluation unit 43 is further configured to input the URI list that meets the current requirement obtained by the previous-stage information acquisition module as a URI selection range to the next-order information acquisition module.
  • the information acquiring unit 42 includes a two-stage information acquiring module, which is a first-order information acquiring module 421 and a second-order information acquiring module 422, wherein the first-order information acquiring module 421 obtains a URI that satisfies the selection condition.
  • the list is input to the URI evaluation unit 43, and is evaluated by the URI evaluation unit 43 to obtain a URI list that meets the current requirement and is used as the URI selection range of the second-order information acquisition module 422, and the second-order information acquisition module 422 obtains all the selection conditions.
  • the list of URIs is further evaluated by the URI evaluation unit 43 to obtain a list of URIs to be finally returned, and the result return unit 44 returns the obtained list of URIs to be finally returned to the requester.
  • the URI evaluation unit 43 evaluates the URI list obtained by the information acquiring unit 42 that satisfies all the selection conditions, deletes the specific URI, and returns the URI list to be returned to the user, the specific URI.
  • the URI includes the requester's own URI or the URI that the requester has previously known to satisfy the selection condition, thereby saving the resources that the CBUS server performs processing and improving the user experience.
  • the CBUS server provided by the embodiment of the present invention can also be used in an application scenario that needs to sequentially obtain a URI list that satisfies the selection condition on different corresponding information servers, and the evaluation information acquiring unit 42 includes first-order or multi-level information acquisition.
  • each order information obtaining module is configured to obtain a URI list that satisfies the selection condition, and input the URI list into the URI evaluation unit 43 to obtain a URI list that meets the current requirement, and input the URI selection range to the next.
  • the order information acquisition module reduces the URI selection range of the CBUS server one by one, and finally enables the requester to obtain a list of URIs that meet the requirements from the CBUS server, thereby saving resources for the CBUS server to perform processing and improving the user experience.
  • the method in the embodiment of the present invention may be implemented in the form of a software function module, and when the software function module is sold or used as a stand-alone product, it may also be stored in a computer readable storage medium.
  • the above-mentioned storage medium may be a read only memory, a magnetic disk or an optical disk or the like.
  • Each functional unit in the embodiment of the present invention may be integrated into one processing module, or each unit may exist physically separately, or two or more units may be integrated into one module.
  • the above integrated modules can be implemented in the form of hardware or in the form of software functional modules.
  • the integrated module is implemented in the form of a software functional module and sold or used as a standalone product It can also be stored in a computer readable storage medium.
  • the above-mentioned storage medium may be a read only memory, a magnetic disk or an optical disk or the like.

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Description

优化 CBUS服务器返回结果的方法、 CBUS服务器 本申请要求于 2008 年 12 月 15 日提交中国专利局、 申请号为 200810183440.X, 发明名称为 "优化 CBUS服务器返回结果的方法、 CBUS服 务器" 的中国专利申请的优先权， 其全部内容通过引用结合在本申请中。 技术领域
本发明涉及电信技术领域，具体而言是涉及一种优化 CBUS服务器返回结 果的方法、 CBUS服务器。 背景技术
统一资源标识符 URI ( Uniform Resource Identifiers )为标识资源定义了一 种标准系统， 由因特网工程任务组（Internet Engineering Task Force, 简称为 IETF ) 的 RFC 3986协议（ Uniform Resource Identifier Generic Syntax ) 予以规 定。 URI是对人们较为熟悉的统一资源定位符 URL( Uniform Resource Locator ) 的扩展， 后者用于 Web 浏览器及类似程序。
随着电信技术的发展， 未来的业务丰富多彩， 许多业务的会话建立阶段， 都需要根据一定的条件来选择需要加入会话的用户，这些条件将基于用户所拥 有的各种信息， 如 Presence (呈现）信息、 位置信息以及用户的兴趣和爱好信 息。
现有的通信技术中， 不同的用户信息分处于不同的服务器上，如呈现信息 存在于 Presence服务器上， 这些信息包括用户的在线信息、 网络承载信息、客 户端设备应用能力信息以及用户的兴趣爱好和心情等等； Location (位置）信 息指出了用户当前所处的地理位置，存在于 Location服务器上。假如我们要获 得位于某一个商场附近的、状态为在线的用户列表， 这时就需要根据用户当前 的呈现信息和他们的地理位置信息， 才能作出判断和选择。 目前的方法只能是 请求者首先向 Presence服务器发送请求获得状态为在线的用户 URI,然后再向 Location服务器发送请求来获得地理位置在商场附近的用户 URI, 请求者自己 将这些用户进行综合分析，得出满足条件位于商场附近的、状态为在线的用户。 这样的操作需要请求者向不同的服务器发送请求以获得满足条件的用户并且 将返回的结果进行比较， 这时候请求者要知道哪种服务器保存哪些信息， 而且 请求者的终端设备需要具备到各个不同服务器的接口，从而给请求者带来了很 大的不便。
基于条件的用户选择 CBUS ( Condition Based URIs Selection )课题的提出 解决了上述的不足，请求者可以将对地理位置、 呈现等信息的要求或者条件送 至 CBUS 服务器， CBUS 服务器与各种信息服务器连接， 例如向 Presence服 务器获得呈现信息， 向 Location服务器获得地理位置信息， 并将这些结果进行 分析综合， 将满足请求者发送条件的用户 URI发送至请求者， 从而不再需要 请求者直接与各种各样的服务器打交道,只需要把需求提交给 CBUS服务器即 可。
CBUS的基本内容在于根据请求者提交的一些条件做出判断，到存储有这 些条件对应的信息的服务器上取回这些信息，再将从不同服务器上取回的信息 与条件进行分析评估，评估选择出请求者所要寻找的对象的 URI, 将最后得到 的评估结果返回给请求者。请求者向 CBUS服务器提交的条件可以是预先定义 好存放在 XDM服务器或者其它文件服务器，也可以在提交选择请求时再定义 条件。 CBUS 在进行用户选择的时候， 既可以只是根据条件和范围进行一次 "Snapshot" (快照） 的选择， 也可以对用户的信息进行持续的监测， 并不断 根据更新的用户信息重新进行用户选择，从而得到更新的选择结果， 这种监测 可以是一直到条件满足， 也可以是在一个特定的时间内。 请求者可以在向 CBUS服务器提交的请求中指定一些单个用户的 URI作为选择范围，也可以指 定组 URI作为选择范围， 也可以不指定选择范围。 其中组 URI是指一组 URI 的集合， 并且这个组本身用一个 URI来进行标识。
在实现本发明过程中， 发明人研究发现： 现有技术中， 如果请求者提交给 CBUS服务器的请求中没有指定具体的 URI的选择范围或者指定的是一个或 几个组 URI作为选择范围， CBUS服务器执行用户请求经过评估得到的满足选 择条件的 URI列表中就可能包含请求者自己的 URI或者请求者不需要的一些 URI。 而在很多情况下， 请求者是知道自己是否满足自己设定的条件的， 如当 前是否在线，位置是否在北京等等，不需要 CBUS服务器去分析评估请求者的 URI是否满足请求者设定的条件， 如果返回的结果中包括请求者自己的 URI, 这就造成了对无线资源的浪费和对 CBUS服务器执行处理资源的浪费。 发明内容
本发明实施例提供了一种优化 CBUS服务器返回结果的方法和 CBUS服 务器， 用于解决请求者从 CBUS服务器处获得的 URI选择结果中不必要地包 含了特定的 URI的问题。
本发明实施例是通过如下技术方案实现的：
一方面， 提供一种优化 CBUS服务器返回结果的方法， 所述方法包括： 接收请求者提交的选择用户的请求，在所述选择用户的请求中携带有选择 条件及从返回的结果中排除特定的 URI的设置；
根据所述选择用户的请求， 评估得到满足所有选择条件的 URI列表； 评估所述特定的 URI是否在所述满足所有选择条件的 URI列表中， 如果 在， 则将所述特定的 URI从该 URI列表中删除， 并得到最终要返回符合需要 的 URI列表；
将所述得到的最终要返回的 URI列表返回给请求者。
另一方面， 提供一种 CBUS服务器， 包括：
请求接收单元， 用于接收请求者提交的选择用户的请求，在所述选择用户 的请求中携带有选择条件及从返回的结果中排除特定的 URI的设置；
评估信息获取单元， 用于根据所述选择用户的请求，评估得到满足所有选 择条件的 URI列表；
URI评估单元， 用于评估所述特定的 URI是否在所述满足所有选择条件 的 URI列表中， 如果在， 则将所述特定的 URI从该 URI列表中删除， 并得到 最终要返回的 URI列表；
结果返回单元， 用于将所述得到的最终要返回的 URI列表返回给请求者。 由以上本发明实施例提供的技术方案可知， 通过将满足所有选择条件的 URI列表中的特定 URI从该 URI列表中删除， 能够使请求者从 CBUS服务器 处获得最终要返回的 URI 列表， 该 URI 列表中不再不必要地包含了特定的
URI, 从而可以节省 CBUS服务器执行处理的资源， 并提升用户体验。
附图说明
图 1为本发明实施例一提供的优化 CBUS服务器返回结果的方法流程图； 图 2为本发明实施例二提供的优化 CBUS服务器返回结果的方法流程图； 图 3为本发明实施例三提供的优化 CBUS服务器返回结果的方法流程图； 图 4为本发明实施例八提供的一种 CBUS服务器结构示意图；
图 5为本发明实施例八提供的另一种 CBUS服务器结构示意图。 具体实施方式
为使本发明的目的、 技术方案、 及优点更加清楚明白， 下面结合附图并举 实施例， 对本发明提供的技术方案进一步详细描述。
实施例一
参见图 1 , 图 1为本发明实施例一提供的优化 CBUS服务器返回结果的方 法流程图， 包括：
步骤 11 , CBUS服务器接收请求者提交的选择用户的请求，在所述选择用 户的请求中携带有从返回的结果中排除特定的 URI的设置。 其中， 所述用户 可以用 URI进行标识， 则所述选择用户可以为用户 URI的选择。
所述特定的 URI包括请求者自己的 URI或者请求者事先已经知道满足该 选择条件的 URI, 例如一个或多个除请求者自己之外的 URI。
而且需要说明的是， 在 CBUS服务器接收请求者提交的选择用户的请求 中， 请求者可以指定一个或几个组 URI作为选择范围， 或者请求者也可以不 指定具体的选择范围。
步骤 12, CBUS服务器接收到所述选择用户的请求后， 分析选择条件， 到 相应的信息服务器上获取信息， 然后， CBUS服务器将取回的信息与请求者提 交的选择条件做分析， 得到满足所有选择条件的 URI列表。
步骤 13 , CBUS服务器评估所述特定的 URI是否在所述满足所有选择条 件的 URI列表中， 如果在， 则将所述特定的 URI从该 URI列表中删除， 得到 最终要返回的 URI列表。
步骤 14, CBUS服务器将所述得到的最终要返回的 URI列表返回给请求 者。
本发明实施例一提供的优化 CBUS服务器返回结果的方法，通过在用户选 择用户的请求中携带有从返回的结果中排除特定的 URI的设置， 能够使请求 者从 CBUS服务器处获得最终要返回的 URI列表， 该最终要返回的 URI列表 排除了特定的 URI, 包括请求者自己的 URI或者请求者事先已经知道满足该 选择条件的 URI, 从而节省 CBUS服务器执行处理的资源， 并提升用户体验。
实施例二
参见图 2, 图 2为本发明实施例二提供的优化 CBUS服务器返回结果的方 法流程图， 包括：
步骤 21 , CBUS服务器接收请求者提交的选择用户的请求，在所述选择用 户的请求中未携带有从返回的结果中排除特定的 URI 的设置。 其中， 所述用 户可以用 URI进行标识， 则所述选择用户可以为用户 URI的选择。
需要说明的是，在 CBUS服务器接收请求者提交的选择用户的请求中，请 求者可以指定一个或几个组 URI作为选择范围， 或者请求者也可以不指定具 体的选择范围。
步骤 22, CBUS服务器接收到所述选择用户的请求后， 分析选择条件， 到 相应的信息服务器上获取信息， 然后， CBUS服务器将取回的信息与请求者提 交的选择条件做分析， 得到满足所有选择条件的 URI列表。 步骤 23 , CBUS服务器评估请求者自己的 URI是否在所述满足所有选择 条件的 URI列表中， 如果在， 则 CBUS服务器根据请求者提交的选择条件判 断是否将请求者自己的 URI从该 URI列表中删除， 并得到最终要返回的 URI 列表。
步骤 24, CBUS服务器将所述得到的最终要返回的 URI列表返回给请求 者。
本发明实施例二提供的优化 CBUS服务器返回结果的方法， 通过 CBUS 服务器根据请求者提交的选择条件判断是否将请求者自己的 URI从得到的满 足所有选择条件的 URI列表中删除， 能够使请求者从 CBUS服务器处获得最 终要返回的 URI列表， 从而可以节省 CBUS服务器执行处理的资源， 并提升 用户体验。
实施例三
参见图 3 , 图 3为本发明实施例三提供的优化 CBUS服务器返回结果的方 法流程图， 包括：
步骤 31 , CBUS服务器接收请求者提交的选择用户的请求，在所述选择用 户的请求中携带有从返回的结果中排除特定的 URI的设置。 其中， 所述用户 可以用 URI进行标识， 则所述选择用户可以为用户 URI的选择。
所述特定的 URI包括请求者自己的 URI或者请求者事先已经知道满足该 选择条件的 URI, 例如一个或多个除请求者自己之外的 URI。
而且需要说明的是， 在 CBUS服务器接收请求者提交的选择用户的请求 中， 请求者可以指定一个或几个组 URI作为选择范围， 或者请求者也可以不 指定具体的选择范围。
步骤 32, CBUS服务器接收到所述选择用户的请求后， 分析选择条件，依 次到不同相应的信息服务器上获取信息， 然后， CBUS服务器将取回的信息与 本次选择条件做分析， 得到满足本次选择条件的 URI列表。
步骤 33 , CBUS服务器评估所述特定的 URI是否在所述满足本次选择条 件的 URI列表中， 如果在， 则将所述特定的 URI从该 URI列表中删除， 得到 符合本次需要的 URI列表。
步骤 34, CBUS服务器将所述得到的符合本次需要的 URI列表作为下次 到不同相应的信息服务器上获取信息的 URI选择范围，重复步骤 32和步骤 33， 直至 CBUS服务器得到最终要返回的 URI列表。
步骤 35, CBUS服务器将所述得到的最终要返回的 URI列表返回给请求 者。
本发明实施例三提供的优化 CBUS服务器返回结果的方法， 在 CBUS服 务器需要依次到不同相应的信息服务器上获取满足本次选择条件的 URI列表 的应用场景下，通过在用户选择用户的请求中携带有从返回的结果中排除特定 的 URI的设置， 在 CBUS服务器依次到不同相应的信息服务器上获取满足本 次选择条件的 URI列表后， 对每次得到的满足本次选择条件的 URI列表进行 评估， 删除掉特定的 URI, 得到符合本次需要的 URI列表， 并作为下次到不 同相应的信息服务器上获取信息的 URI选择范围， 这样逐次缩小 CBUS服务 器的 URI选择范围， 最终使请求者从 CBUS服务器处获得符合需要的 URI列 表， 从而能够节省 CBUS服务器执行处理的资源， 并提升用户体验。
需要说明的是，本实施例如果在向 CBUS服务器提交选择用户的请求未携 带有从返回的结果中排除特定的 URI的设置， CBUS服务器仍将评估请求者自 己的 URI是否在所述满足所有选择条件的 URI列表中， 如果在， 则 CBUS月良 务器根据请求者提交的选择条件判断是否将请求者自己的 URI从该 URI列表 中删除， 并得到最终要返回的 URI列表。 结果的方法进行说明。
实施例四
Alice是某网络书店的一名注册会员， 希望能够找出所有注册会员中当前 在线并且和她一样阅读过小说 Ghost的人来交流读后感。 Alice通过 CBUS业务来搜索满足自己条件的用户， Alice向 CBUS服务器 发起一个选择用户的请求， 请求中包括三个条件并且未指定供选择的 URI 范 围， 三个条件是：
Figure imgf000010_0001
CBUS服务器返回的用户 URI必须同时满足这三个条件， 即 CBUS服务 器进行搜索的条件为： 条件 1 AND条件 2 AND条件 3。 同时 Alice知道自己 是肯定满足这三个条件的， 如果 CBUS 服务器得到的满足条件的结果中只有 Alice自己的话， Alice就不希望 CBUS服务器再返回这样的结果给她了， 所以 她在提交请求时还有一个附加条件， 就是在结果中排除她自己， 即排除 ( Exclude )她自己的 URI: Sip:Alice@example.com。 这样 CBUS服务器接收到 的全部选择条件就是： 条件 1 AND 条件 2 AND 条件 3 AND ( Exclude Sip: Alice@example.com )。
CBUS服务器从相应的信息服务器获取该网络书店的会员列表， 以及小说 Ghost的阅读记录， 从中选择出阅读过该小说的会员列表， 然后到保存有用户 状态信息的 Presence服务器上获取这些会员的状态信息，从中选出当前在线的 会员列表， 然后再根据 Alice的请求要求，将 Alice的 URI从这个列表中剔除， 如果此时列表不为空， 则把列表返回给 Alice, 如果列表为空， 则向 Alice返回 无满足条件的结果的信息。
实施例五
Alice和她的朋友们预先设定了一个组 A, 组中包括常在一起聊天的几个 朋友： Alice、 Bob , Candy、 David、 Emily 和 Frank , 这个组 A 用 URI Sip： Group 1 @example . com来在网络中进行唯一标识。
Alice希望和当前在线的朋友一起聊天， 先向 CBUS服务器发起一个选择 用户的请求， 由 CBUS服务器从组 A中选择出当前是 Available (在线）状态 的朋友。 Alice向 CBUS服务器提交的请求包括选择条件和一个组 URI, 条件 为 Status: Available , 组 URI为 Sip:Groupl@example.com。
CBUS服务器接收到 Alice的请求的同时， 还获知了请求者 Alice 自己的 URI: Sip:Alice@example.com。 CBUS服务器首先到保存有组 A信息的共享群 组 XDM 文档服务器 （ Shared Group XDM Server ) 上根据组 URI Si ： Group 1 ©example . com获取在这个组中的成员的 URI:
Figure imgf000011_0001
CBUS服务器在获取到组中有哪些成员的信息后，到保存有成员状态信息 的 Presence服务器上获取这些成员的状态信息：
CBUS服务器将取回的成员状态信息与请求条件进行分析评估，获得满足 条件的用户 URI有 Sip:Alice@example.com和 Sip:Bob@example.com; 同时 CBUS服务器分析请求条件和请求者的 URI, 请求者自己肯定是在线状态， 而 且请求者自己是可以确定自己是满足该条件的， CBUS服务器将请求者 Alice 的 URI从刚才得到的 URI列表中剔除， 得到最终要返回给 Alice的 URI为 Sip:Bob@example.com。
Alice得到 CBUS服务器返回的 URI后， 可以发起与 Bob的会话。
如果 CBUS服务器取回的成员状态信息中， 在线的只有 Alice, 就不必给 Alice返回当前在线的人是 Alice自己了， 因为 Alice也不会想得到要聊天的对 象是自己的 URI这样没有意义的结果， 因此本实施例节约了无线资源， 改善 了用户体验。 实施例六
Alice和 Bob希望从现有的两个 URI组中挑选出至少两位当前在线、 爱好 是桥牌并且桥牌级别是中级的成员， 供他们选择好一块打网上桥牌。 由 Alice 通过 CBUS业务来选择他们的目标人选。 Alice向 CBUS服务器提交选择请求， 包括：
URI选择范围是两个组 URI ：
Figure imgf000012_0001
选择条件是:
Figure imgf000012_0002
而 Bob已经加入了组 1 , 并且也满足这三个条件， 所以 Alice在提交请求 时， 同时指定在返回结果中排除 Bob。所以 CBUS服务器接收到的完整的请求 为： 从（ URI组 1和 URI组 2 )中选择出满足条件 (条件 1 AND条件 2 AND 条件 3 ) AND ( Exclued Sip:Bob@example.com )。
CBUS服务器首先到保存有群组信息的共享群组 XDM文档服务器上获取 URI组 1和 URI组 2中的具体的成员信息： 组 URI 成员
Sip: Alx@example.com
Sip:Group l@example.com Sip: Bob@example.com
Sip: Candy@example.com
Sip: David@example.com
Sip:Group2@example.com Sip: Emily@example.com
Figure imgf000013_0001
CBUS服务器评估取回的成员信息， 从中去掉 Bob的 URI, 保留其余 5 人的 URI,然后到保存有成员个人信息的 Presence服务器上获取他们的在线信 息和爱好信息：
Figure imgf000013_0002
CBUS服务器评估取回的成员的在线信息和爱好信息， 同时满足条件 1和 2和 3的只有 Sip: Emily@example.com一个人， 不符合条件 4中对至少返回 2 个 URI的限制，所以 CBUS服务器向请求者 Alice返回没有满足条件用户的信 息。
实施例七
Alice需要向当前在某野营区的野营者发送短信通知， 希望通过 CBUS业 务来获取当前在野营区的人的 URI列表， 但是返回的 URI列表中不需要包括 当前也在野营区的管理者 Alice和 Bob。
Alice向 CBUS服务器提交的选择请求， 指定选择条件是当前位置在野营 区 ， 同 时 指 定 返 回 结 果 中 排 除 Sip:Alice@example.com 和 Sip:Bob@example.com。
CBUS服务器接收到请求者提交的请求后，到位置信息服务器上获取当前 位置在野营区的用户信息返回给 CBUS服务器， CBUS服务器评估获取的信息 和请求 , 从中删除掉 Alice和 Bob的 URI , 将最终满足请求的 URI列表返回 给请求者。
实施例八
参见图 4, 本发明实施例八提供了一种 CBUS服务器， 包括：
请求接收单元 41 , 用于接收请求者向 CBUS服务器提交的选择用户的请 求， 在所述选择用户的请求中携带有选择条件和选择方式的参数配置。
评估信息获取单元 42, 用于 CBUS服务器根据所述选择用户的请求， 评 估得到满足所有选择条件的 URI列表。
URI评估单元 43 , 用于 CBUS服务器评估请求者自己的 URI是否在所述 满足所有选择条件的 URI列表中， 如果在， 则 CBUS服务器根据请求者提交 的选择条件判断是否将请求者自己的 URI从该 URI列表中删除， 并得到最终 要返回的 URI列表。
结果返回单元 44, 用于 CBUS服务器将所述得到的最终要返回的 URI列 表返回给请求者。
所述 URI评估单元 43还用于： 在所述选择用户的请求中携带有对返回的 结果中排除特定的 URI进行设置的指定时， CBUS服务器评估所述特定的 URI 是否在所述满足所有选择条件的 URI列表中， 如果在， 则将所述特定的 URI 从该 URI列表中删除， 得到最终要返回的 URI列表。
参见图 5, 所述信息获取单元 42包括一阶或多阶信息获取模块， 每阶信 息获取模块用于获取信息并评估， 得到满足本次选择条件的 URI列表， 并将 该 URI列表输入到所述 URI评估单元得到符合本次需要的 URI列表；
所述 URI评估单元 43， 还用于将上一阶信息获取模块输入得到的符合本 次需要的 URI列表作为 URI选择范围输入到下一阶信息获取模块。 如图 5所示， 信息获取单元 42包括两阶信息获取模块， 分别为一阶信息 获取模块 421 , 二阶信息获取模块 422, 其中一阶信息获取模块 421将得到的 满足本次选择条件的 URI列表输入到 URI评估单元 43 , 由 URI评估单元 43 进行评估，得到符合本次需要的 URI列表并作为二阶信息获取模块 422的 URI 选择范围， 由二阶信息获取模块 422得到满足所有选择条件的 URI列表， 再 经 URI评估单元 43进行评估得到最终要返回的 URI列表， 由结果返回单元 44将所述得到的最终要返回的 URI列表返回给请求者。
本发明实施例提供的 CBUS服务器， 由 URI评估单元 43对信息获取单元 42得到的满足所有选择条件的 URI列表进行评估， 删除特定的 URI, 向用户 返回最终要返回的 URI列表， 所述特定的 URI包括请求者自己的 URI或者请 求者事先已经知道满足该选择条件的 URI,从而节省 CBUS服务器执行处理的 资源，并提升用户体验。 而且本发明实施例提供的 CBUS服务器还可以用于需 要依次到不同相应的信息服务器上获取满足本次选择条件的 URI列表的应用 场景下， 通过评估信息获取单元 42包括一阶或多阶信息获取模块， 每阶信息 获取模块用于得到满足本次选择条件的 URI列表， 并将该 URI列表输入到所 述 URI评估单元 43得到符合本次需要的 URI列表， 并作为 URI选择范围输 入到下一阶信息获取模块， 这样逐次缩小 CBUS服务器的 URI选择范围， 最 终使请求者从 CBUS服务器处获得符合需要的 URI列表,从而能够节省 CBUS 服务器执行处理的资源， 并提升用户体验。
需要说明的是， 本发明实施例中的方法可以软件功能模块的形式实现， 并 且该软件功能模块作为独立的产品销售或使用时，也可以存储在一个计算机可 读取存储介质中。 上述提到的存储介质可以是只读存储器， 磁盘或光盘等。
本发明实施例中的各功能单元可以集成在一个处理模块中 ,也可以是各个 单元单独物理存在，也可以两个或两个以上单元集成在一个模块中。上述集成 的模块既可以采用硬件的形式实现，也可以采用软件功能模块的形式实现。 所 述集成的模块如果以软件功能模块的形式实现并作为独立的产品销售或使用 时，也可以存储在一个计算机可读取存储介质中。上述提到的存储介质可以是 只读存储器， 磁盘或光盘等。
以上对本发明实施例所提供的优化 CBUS 服务器返回结果的方法和 CBUS 服务器进行了详细介绍，实施例的说明只是用于帮助理解本发明的方法及其思 想； 任何熟悉本技术领域的技术人员在本发明揭露的技术范围内， 可轻易想到 变化或替换， 都应涵盖在本发明的保护范围之内。

Claims

权 利 要 求 书
1、一种优化 CBUS服务器返回结果的方法， 其特征在于， 所述方法包括： 接收请求者提交的选择用户的请求，在所述选择用户的请求中携带有选择 条件及从返回的结果中排除特定的 URI的设置；
根据所述选择用户的请求， 评估得到满足所有选择条件的 URI列表； 评估所述特定的 URI是否在所述满足所有选择条件的 URI列表中， 如果 在， 则将所述特定的 URI从该 URI列表中删除， 并得到最终要返回符合需要 的 URI列表；
将所述得到的最终要返回的 URI列表返回给请求者。
2、 根据权利要求 1所述的方法， 其特征在于， 所述方法还包括： 如果需要依次到不同相应的信息服务器上获取信息并评估，得到满足本次 选择条件的 URI列表， 则对每次得到的满足本次选择条件的 URI列表进行评 估， 得到符合本次需要的 URI列表， 并作为下一次的 URI选择范围。
3、 根据权利要求 2所述的方法， 其特征在于， 所述对每次得到的满足本 次选择条件的 URI列表进行评估的方法包括：
评估所述特定的 URI是否在所述满足本次选择条件的 URI列表中， 如果 在， 则将所述特定的 URI从该 URI列表中删除， 得到符合本次需要的 URI列 表。
4、 根据权利要求 1所述的方法， 其特征在于，
接收请求者提交的选择用户的请求中，请求者可以指定一个或几个组 URI 作为选择范围， 或者请求者也可以不指定具体的选择范围。
5、 根据权利要求 1所述的方法， 其特征在于， 所述特定的 URI包括： 请 求者自己的 URI, 和 /或一个或多个除请求者自己之外的 URI。
6、 一种 CBUS服务器， 其特征在于， 包括：
请求接收单元， 用于接收请求者提交的选择用户的请求，在所述选择用户 的请求中携带有选择条件及从返回的结果中排除特定的 URI的设置； 评估信息获取单元， 用于根据所述选择用户的请求，评估得到满足所有选 择条件的 URI列表；
URI评估单元， 用于评估所述特定的 URI是否在所述满足所有选择条件 的 URI列表中， 如果在， 则将所述特定的 URI从该 URI列表中删除， 并得到 最终要返回的 URI列表；
结果返回单元， 用于将所述得到的最终要返回的 URI列表返回给请求者。
7、 根据权利要求 6所述的 CBUS服务器， 其特征在于，
所述评估信息获取单元， 包括一阶或多阶信息获取模块，每阶信息获取模 块用于评估得到满足本次选择条件的 URI列表， 并将该 URI列表输入到所述 URI评估单元得到符合本次需要的 URI列表。
8、 根据权利要求 7所述的 CBUS服务器， 其特征在于，
所述 URI评估单元， 还用于将上一阶信息获取模块输入得到的符合本次 需要的 URI列表作为 URI选择范围输入到下一阶信息获取模块。
PCT/CN2009/075288 2008-12-15 2009-12-03 优化cbus服务器返回结果的方法、cbus服务器 WO2010069227A1 (zh)

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