JP2009230562A - Presence service system, presence service method and presence service program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a plurality of presence services with one user identifier, selectively disclose the presence for each service, and control whether to permit access. <P>SOLUTION: A terminal 11 serves as a presentity referred to by a terminal 12 for presence, also as a watcher referring to a terminal 13 for presence. The terminal 12 corresponds to the watcher that subscribes for the presence of the terminal 11. The terminal 13 corresponds to the presentity for the presence of which the terminal 11 subscribes. Presence servers 21 and 22 manage presence information and presence approval rules about the terminals 11 to 13, and controls access and selects presence information to be disclosed according to service type identification information specified at the presence subscription request, service type identification information specified by the presentity when the presentity issues a presence, and the presence approval rules comprising service type identification information, accessibility conditions and disclosure conditions. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a communication system in a presence service, and relates to a presence service system, a presence service method, and a presence service program.

  In recent years, broadband and ubiquitous service environments that meet the diverse needs of all IP (Internet Protocol) networks and service users are being constructed. Therefore, presence as part of service enablers used by other service entities such as end users and application servers as a means to enable the creation and provision of a wide variety of new services that take advantage of these network features It is necessary to consider the expansion of profits by introducing a server and expanding the added value of services and encouraging the guidance of existing customers. Conventionally, in the presence service, an independent presence server is constructed for each service, and the configuration method of presence information is different for each server.

  On the other hand, presence servers in NGN (Next Generation Network), IMS (IP Multimedia Subsystem), etc. use a protocol-independent tuple element for each user identifier, and provide presence information indicating service characteristics and status. A technique for segmenting each service has been proposed (for example, see Non-Patent Documents 1 and 2). In addition, the user's own information characteristics and status (call intention, communication availability, etc.) and device characteristics such as Mobile Phone, PC (Personal Computer), PDA (Personal Digital Assistant), etc. (display size, number of displayable colors, etc.) ) And its status information (remaining battery level, location information, etc.) are segmented by elements such as “person” and “device” in the same way as the tuple element, and these are managed on the same server in units of presentity. Technology has been proposed (see, for example, Non-Patent Document 3).

  In addition, based on the presence authorization rules, the presence information provided for each watcher is selected from a plurality of presence information, and the filtering policy of the watcher's presence information considering the efficient use of bandwidth and device capability is used. A technique for providing only presence information necessary for users and applications is known (see, for example, Non-Patent Document 4). In the presence authorization rule, the rule application range is determined by an identifier (identity), an adaptation area (Sphere), and a validity period (validity). The identifier indicates an identifier of the watcher, and the adaptation area indicates a state related to the presentity behavior. The effective period indicates a time zone for rule adaptation.

In addition, for a watcher within the rule application range, a subscription operation (action / sub-handling) for presence access permission and for a watcher that has become accessible, a presentity public policy (for example, tupleID) Also, presence information is transformed (Transform) based on deviceID).
Internet <URL: http://www.ietf.org/rfc/rfc2778.txt> Internet <URL: http: //www.ietf.org/rfc/rfc3863.txt> Internet <URL: http: //www.ietf.org/rfc/rfc4479.txt> Internet <URL: http: //www.ietf.org/rfc/rfc5025.txt>

  Here, as an example, different service providers borrow a user identifier managed by a telecommunications carrier and a presence storage area of a presence server installed by the telecommunications carrier, and use service A and service B. Consider the case of offering. A conventional method relating to accessibility or public policy is localization of presence information with respect to a watcher user identifier and presence information based on the public policy. For example, when a watcher sends a SUBSCRIBE request to a presentity, the access permission and disclosure method according to the presence authorization rule set by the presentity is determined by determining whether or not the watcher can access the presentity. Then, control is performed such that “only the presence information of service A is disclosed” or “only the presence information of service B is disclosed”.

  However, in the prior art, when the service providers providing the service A and the service B are different, there is no means for determining which service the SUBSCRIBE request transmitted from the terminal that processes the service A is, It is not possible to determine whether only the presence information of service A needs to be disclosed to the watcher or only the presence information of service B needs to be disclosed. In addition, the problem of not being able to express the accessibility of each service, the problem that even if presence information can be obtained, the strict information disclosure expected by the presentity and the provision of presence information that is sufficiently reliable to the watcher was there.

  The present invention has been made in view of such circumstances, and an object of the present invention is to provide a plurality of presence services with the same user identifier while controlling presence disclosure selection for each service and accessibility. It is to provide a presence service system, a presence service method, and a presence service program.

  In order to solve the above-described problem, the present invention provides a plurality of terminals, a server apparatus that controls registration of presence information issued from any of the terminals, and disclosure of the issued presence information to other terminals. The server apparatus receives presence information issued by one of the plurality of terminals and having a different configuration method depending on the service type, together with service type identification information for identifying the service type. Means, holding means for holding presence information in units of user identifiers assigned to the terminal that issued the presence information, service type identification information received from the terminal that issued the presence information, access permission conditions, and disclosure conditions Setting means for holding the configured presence authorization rule in association with the user identifier And a presence subscription request together with service type identification information from any one of the plurality of terminals, the presence presence rule based on the presence authorization rule configured from the service type identification information, the access permission / rejection condition, and the publication condition A transmission permission determination unit that determines whether information can be disclosed, and a transmission that transmits the presence information to the terminal that issued the presence subscription request when it is determined by the disclosure permission determination unit that the presence information can be disclosed. A presence service system.

  According to the present invention, in the above invention, when presence information is issued from any of the plurality of terminals, the server device includes presence information from the same terminal in the presence information already held. A combination means for combining existing presence information and new presence information in a separable manner and holding it in the holding means, and the combination if the presence information can be disclosed by the disclosure possibility determination means Selecting means for selecting the corresponding presence information from the presence information combined by the means, and the transmitting means transmits the presence information selected by the selecting means to the terminal that issued the presence subscription request. It is characterized by that.

  According to the present invention, in the above invention, when the server device determines that the presence information cannot be disclosed by the disclosure permission determination unit, the server device transmits an error response to the terminal that issued the presence subscription request. The apparatus further comprises means.

  According to the present invention, in the above invention, when the terminal issues the presence information, the terminal sets service type identification information for identifying a service type of the presence information and issues the setting information to the server device; Release conditions for generating presence authorization rules composed of service type identification information, access permission conditions, and release conditions for presence information issued by the means and held in the server apparatus, and transmitting them to the server apparatus And a transmission means.

  In order to solve the above-described problem, the present invention provides a server apparatus for registering presence information issued from any one of a plurality of terminals and disclosing the issued presence information to other terminals. A presence service method to be controlled, comprising: receiving presence information issued by one of the plurality of terminals and having a different configuration method according to a service type together with service type identification information for identifying a service type; and the presence information Associating a presence authorization rule received from the issuing terminal, which is composed of service type identification information, an access permission condition and a disclosure condition, with the user identifier, and presence subscription together with service type identification information from any of the plurality of terminals When the request is received, the service type identification information, the access Based on a presence authorization rule composed of a presence permission condition and a release condition, and determining whether the presence information can be released, and if it is determined that the presence information can be released, the corresponding presence information is And a step of transmitting the presence subscription request to the terminal that issued the presence subscription request.

  In order to solve the above-described problem, the present invention provides a server for controlling the registration of presence information issued from any one of a plurality of terminals and the disclosure of the issued presence information to other terminals. Receiving presence information, which is issued by one of the plurality of terminals and having a different configuration method according to the service type, together with service type identification information for identifying the service type, from the terminal that issued the presence information; Associating the received presence authorization rule composed of the access permission condition and the disclosure condition with the user identifier, and receiving a presence subscription request together with service type identification information from any of the plurality of terminals, the service type identification Consists of information, access permission conditions, and disclosure conditions A step of determining whether or not the presence information can be disclosed based on the approval rule, and if it is determined that the presence information can be disclosed, the presence information is transmitted to the terminal that issued the presence subscription request. A presence service program characterized in that a step is executed.

  According to the present invention, the server device holds presence information issued by one of a plurality of terminals and having a different configuration method depending on the service type, together with service type identification information for identifying the service type, and issued the presence information. The presence authorization rule configured from the service type identification information, the access permission condition, and the disclosure condition received from the user is associated with the user identifier, and when a presence subscription request is received from any of a plurality of terminals, the service type identification information, the access Based on the presence approval rule configured from the availability condition and the release condition, it is determined whether the presence information can be released. If it is determined that the presence information can be released, a presence subscription request is issued for the corresponding presence information. Send to the terminal. Therefore, there can be obtained an advantage that presence disclosure selection for each service and access permission can be controlled while providing a plurality of presence services with the same user identifier.

  Further, according to the present invention, when presence information is issued from any of a plurality of terminals, the server device can combine existing presence information and new presence information so that the presence information can be selected, and can disclose the presence information. If it is determined, the corresponding presence information is selected from the combined presence information and transmitted to the terminal. Therefore, there can be obtained an advantage that presence disclosure selection for each service and access permission can be controlled while providing a plurality of presence services with the same user identifier.

  Also, according to the present invention, when it is determined that the presence information cannot be disclosed, the server device transmits an error response to the terminal that issued the presence subscription request. Therefore, there can be obtained an advantage that presence disclosure selection for each service and access permission can be controlled while providing a plurality of presence services with the same user identifier.

  Further, according to the present invention, when issuing the presence information, the terminal sets and issues the service type identification information for identifying the service type of the presence information and also issues the presence information held in the server device. Then, an access permission condition and a presence authorization rule are generated and transmitted. Therefore, there can be obtained an advantage that presence disclosure selection for each service and access permission can be controlled while providing a plurality of presence services with the same user identifier.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

  FIG. 1 is a block diagram showing a configuration of a presence service system according to an embodiment of the present invention. In the figure, terminals 11, 12, and 13 are PCs, PDAs, and the like. The terminal 11 is a presentity whose presence is referred from the terminal 12 and is also a watcher that refers to the presence of the terminal 13. The terminal 12 corresponds to a watcher that subscribes to the presence of the terminal 11. The terminal 13 corresponds to a presentity subscribed for presence from the terminal 11. Note that the terminals 11, 12, and 13 may be application servers.

  Proxy servers (Serving Call Session Control Function) 23, 24 send SIP / SIMPLE (Session Initiation Protocol / SIP for Instant Message and Presence Leveraging Extensions) signals between the terminals 11, 12, 13 and the presence servers 21, 22. Relay. The presence server 21 accommodates the terminals 11 and 12, manages the presence information and presence authorization rules of the terminals 11 and 12, and sets the presentity when a presence subscription request from the watcher is issued or presence is issued from the presentity. The presence server 22 has a function of performing access control, selection of presence information to be disclosed, etc. based on a presence authorization rule (including a service type, an access permission condition, and a disclosure condition). The presence type and presence authorization rules of the terminal 13 are managed, the service type set in the presence subscription request from the watcher, the service type set by the presentity when the presence is issued from the presentity, and the service by the presentity Type, accessibility conditions, based like a presence authorization rule constructed from published conditions, access control and has a function of performing such selection of presence information to be published.

(First embodiment)
First, a first embodiment of the present invention will be described. In the first embodiment, in response to the presence subscription request (SUBSCRIBE) from the terminal 12 for the presence information of the terminal 11, the presence server 21 sends to the terminal 12 according to the access permission condition (permission) and the disclosure condition of the presence authorization rule. In response to an example of presence information notification (NOTIFY) and presence subscription request (SUBSCRIBE) from the terminal 11 for presence information of the terminal 13, the presence server 22 notifies the terminal 11 in accordance with an access permission condition (rejection due to no presence authorization rule). An example of responding with a 403 response (access denied) will be described.

  FIG. 2 is a sequence diagram for explaining the overall operation according to the first embodiment. 4 to 7 are flowcharts for explaining the operation of the presence server 21. In FIG. 2, the presentity of the terminal 11 issues (PUBLISH) the presence P1 of the terminal 11 to the presence server 21 via the proxy server 23 (SS1). In the presence issuance, information SV1 for identifying the service type is set by the terminal 11. In this case, the presence server 21 sets the corresponding presence information as it is because there is no presence (SS2).

  More specifically, as shown in FIG. 5, the presence server 21 receives the PUBLISH signal from the terminal 11 (step S31), and determines the presence / absence of the existing presence (step S32). In this case, since there is no presence, the presence information received as it is is stored in association with the presentity (step S33).

  Furthermore, the presentity of the terminal 11 issues (PUBLISH) the presence P2 of the terminal 11 to the presence server 21 via the proxy server 23 (SS3). In the presence issuance, information SV2 for identifying the service type is set by the terminal 11. In this case, since the presence P1 exists, the presence server 21 combines the corresponding presence P1 and the presence P2 according to the combination condition (SS4). More specifically, as shown in FIG. 3, the presence server 21 receives the PUBLISH signal from the terminal 11 (step S31), and determines the presence / absence of the existing presence (step S32). In this case, since the presence P1 already exists, the presence P2 is combined according to the combination condition, and stored as a potential presence in association with the presentity (step S34).

  Next, from the presentity of the terminal 11, the presence server 21 sets a presence authorization rule including SV2 as an accessible service type, the terminal 11 as a policy-adaptive watcher, and a public condition for publishing only the access operation condition of the watcher and presence P2. It is received by (XML Configuration Access Protocol) (SS5), and the corresponding presence authorization rule is stored in association with the presentity (SS6). More specifically, as shown in FIG. 5, from the presentity of the terminal 11, the presence server 21 discloses only the SV2 as the accessible service type, the terminal 11 as the policy appropriate watcher, the access operation condition of the watcher, and the presence P2. A presence authorization rule including a disclosure condition is received (step S41), and the received presence access permission condition and presence authorization rule are set (step S42).

  Next, the watcher of the terminal 12 requests the presence subscription to the presentity of the terminal 11 (SUBSCRIBE) from the presence server 21 via the proxy server 23 (SS7). In the presence subscription request, information SV2 for identifying the service type to be subscribed is set by the terminal 12. Receiving the presence subscription request (SUBSCRIBE) from the terminal 12, the presence server 21 determines the access condition based on the presence authorization rule (SS8). Next, a 200 response is returned to the watcher of the terminal 12 (SS9), the presence is selected and controlled according to the disclosure condition of the presence authorization rule (SS10), and a presence notification (NOTIFY) to the terminal 12 is notified (SS11).

  More specifically, as shown in FIGS. 6 and 7, the presence server 21 that has received the presence subscription request (SUBSCRIBE) from the terminal 12 determines whether the service type included in the signal is “PUBLISH” or “SUBSCRIBE”. (Step S51). In this case, since the presence subscription request is “SUBSCRIBE”, the presence authorization rule for the presentity of the terminal 11 is searched using the information SV2 for identifying the service type as an input parameter (step S52), and the presence authorization rule is determined (step S52). S53).

  In this case, since there is a presence authorization rule (see step S41), it is determined from the contents described in the presence authorization rule whether the terminal 12 is a policy adaptive watcher and is accessible (step S54). In this case, since access is possible, the subscription information (subscription) is associated with the service type, a 200 response (OK) is returned to the watcher of the terminal 12 (step S55), and only the presence P2 is disclosed. Only the presence P2 is selected from the potential presence so as to satisfy the condition, and a presence notification (NOTIFY) is generated and notified to the terminal 12 (step S56).

  On the other hand, the presentity of the terminal 13 issues (PUBLISH) the presence P2 of the terminal 13 to the presence server 22 via the proxy server 24 (SS12). Since there is no presence, the presence server 22 sets the corresponding presence information as it is (SS13). More specifically, as shown in FIG. 4, the presence server 22 receives the PUBLISH signal from the terminal 13 (step S31), and determines the presence / absence of the existing presence (step S32). In this case, since there is no presence, the presence is stored in association with the presentity as it is (step S33).

  Next, from the presentity of the terminal 13, the presence server 22 sets a presence authorization rule including SV2 as an accessible service type, the terminal 12 as a policy-adaptive watcher, and a public condition for publishing only the watcher's access operation condition and presence P2. (SS14), and the presence authorization rule is stored in association with the presentity (SS15). More specifically, as shown in FIG. 4, from the presentity of the terminal 13, the presence server 22 discloses only the SV2 as the accessible service type, the terminal 12 as the policy appropriate watcher, the access operation condition of the watcher and the presence P2. A presence authorization rule including a disclosure condition is received (step S41), and the received presence authorization rule is set (step S42).

  Next, the watcher of terminal 11 requests presence subscription to the presentity of terminal 13 (SUBSCRIBE) from presence server 22 via proxy server 23 and proxy server 24 (SS16). In the presence subscription request, information SV1 for identifying the service type to be subscribed is set by the terminal 11. The presence server 22 that has received the presence subscription request (SUBSCRIBE) from the terminal 11 determines that access is not possible because there is no presence authorization rule (SS17), and returns a 403 response (access denied) to the watcher of the terminal 11 (SS18). ).

  More specifically, as shown in FIG. 6, the presence server 22 searches the presence authorization rule for the presentity of the terminal 13 using the information SV1 identifying the service type included in the signal as an input parameter (step S52). In this case, the presence authorization rule is determined (step S53), but since the presence authorization rule does not exist (no in step S53), access is disabled and a 403 response (access denied) is generated for the watcher of the terminal 11. (Step S57).

(Second Embodiment)
Next, a second embodiment of the present invention will be described.
In the second embodiment, after the presentity of the terminal 11 sets presence authorization rules including an access permission condition (access allowed) and presence disclosure conditions related to the watcher of the terminal 12, the presence subscription request by the terminal 12 and the terminal 11 An example in which the presence server 21 notifies the terminal 12 of the presence (NOTIFY) by issuing a presence by (PUBLISH) will be described.

  FIG. 3 is a sequence diagram for explaining the overall operation according to the second embodiment of the present invention. The presence server 21 receives from the presentity of the terminal 11 a presence authorization rule that includes SV2 as an accessible service type, the terminal 11 as a policy-adaptive watcher, and an access operation condition of the watcher and a public condition that discloses only the presence P2 (SS20). ), The corresponding presence authorization rule is stored in association with the presentity (SS21). More specifically, as shown in FIG. 5, the presence server 21 discloses only the SV2 as the accessible service type, the terminal 11 as the policy-adaptive watcher, the access operation condition of the watcher, and the presence P2 from the presentity of the terminal 11. A presence authorization rule including a disclosure condition is received (step S41), and the received presence access permission condition and presence authorization rule are set (step S42).

  Next, the watcher of the terminal 12 requests the presence subscription to the presentity of the terminal 11 (SUBSCRIBE) from the presence server 21 via the proxy server 23 (SS22). In the presence subscription request, information SV2 for identifying the service type to be subscribed is set by the terminal 12. The presence server 21 that has received the presence subscription request (SUBSCRIBE) from the terminal 12 determines the access condition according to the presence authorization rule in accordance with the request from the watcher of the terminal 12 (SUBSCRIBE) (SS23), to the watcher of the terminal 12 A 200 response is returned (SS24), presence is selected and controlled by the presence authorization rule (SS25), and a presence notification (NOTIFY) to the terminal 12 is notified (SS26).

  More specifically, the presence server 21 that has received the presence subscription request (SUBSCRIBE) from the terminal 12, as shown in FIG. 6, uses the information SV2 for identifying the service type included in the signal as an input parameter, and the presentity of the terminal 11. The presence authorization rule is searched (step S52), and the presence authorization rule is determined (step S53). In this case, since there is a presence authorization rule, it is determined from the contents described in the presence authorization rule whether the terminal 12 is a policy-adaptive watcher and is accessible (step S54). In this case, since access is possible, the subscription information (subscription) is associated with the service type, and a 200 response (OK) is returned to the watcher of the terminal 12 (step S55). Then, although the potential presence is acquired so as to satisfy the disclosure condition for publishing only the presence P2, since there is no potential presence, the presence information is set as empty information, and a presence notification (NOTIFY) is generated and notified to the terminal 12 ( Step S56).

  Next, the presentity of the terminal 11 issues (PUBLISH) the presence P1 of the terminal 11 to the presence server 21 via the proxy server 23 (SS27). In the presence issuance, information SV1 for identifying the service type is set by the terminal 11. The presence server 21 receives the PUBLISH signal from the terminal 11, and sets presence information according to the presence / absence of the existing presence (SS28). More specifically, as shown in FIG. 4, when the presence server 21 receives a PUBLISH signal from the terminal 11 (step S31), the presence server 21 determines the presence / absence of an existing presence (step S32). In this case, since there is no presence, the presence P1 is stored in association with the presentity as it is (step S33).

  Next, the presence server 21 that has received presence issuance (PUBLISH) from the terminal 11 determines access conditions based on the presence authorization rule (SS29). More specifically, the presence server 21 that has received the presence issuance (PUBLISH) determines whether or not there is subscription information related to the presentity of the terminal 11 as shown in FIG. 7 (step S58). In this case, since there is subscription information, a presence authorization rule associated with each subscription information is searched for in service type SV1 (step S59), and presence / absence of presence authorization rule is determined (step S60). In this case, since there is no presence authorization rule (No in step S60), the process ends.

  Further, the presentity of the terminal 11 issues (PUBLISH) the presence P2 of the terminal 11 to the presence server 21 via the proxy server 23 (SS30). In the presence issuance, information SV2 for identifying the service type is set by the terminal 11. When the presence server 21 receives the PUBLISH signal from the terminal 11, since the existing presence P1 exists, the presence server 21 combines the corresponding presences P1 and P2 according to the combination condition (SS31). More specifically, as shown in FIG. 4, the presence server 21 receives the PUBLISH signal from the terminal 11 (step S31), and determines the presence / absence of the existing presence (step S32). In this case, since the presence P1 exists, according to the combination condition, the corresponding presence P2 is combined and stored as a potential presence in association with the presentity (step S34).

  Next, the presence server 21 that has received presence issuance (PUBLISH) from the terminal 11 determines the access conditions (SS32), selects and controls presence based on the presence authorization rule (SS33), and notifies the terminal 12 of presence notification ( (NOTIFY) is notified (SS34). More specifically, the presence server 21 that has received the presence issuance (PUBLISH) determines whether or not there is subscription information related to the presentity of the terminal 11 as shown in FIG. 7 (step S58). In this case, since there is subscription information, a presence authorization rule associated with each subscription information is searched for in service type SV2 (step S59), and presence / absence of presence authorization rule is determined (step S60). In this case, since a presence authorization rule exists, it is determined from the contents described in the presence authorization rule whether the terminal 12 is a policy-adaptive watcher and is accessible (step S61). In this case, since access is possible, only the presence P2 is selected from the stay presence so as to satisfy the public conditions for publishing only the presence P2, and a presence notification (NOTIFY) for the terminal 12 is generated and notified (step S56). .

  According to the above-described embodiment, according to the present invention, it is possible to strictly control the disclosure of information in units of service types, and it is possible to realize the provision of presence information that can be sufficiently trusted even for watchers. In addition, each service provider can provide a service by superimposing it on a user identifier managed by the presence server of the communication provider.

  In the above-described embodiment, a program for realizing the functions of the processing units in the presence servers 21 and 22 and the terminals 11 to 13 described above is recorded on a computer-readable recording medium and recorded on the recording medium. The encoding process and the decoding process may be performed by causing the computer system to read and execute the program. Here, the “computer system” may include an OS and hardware such as peripheral devices. Further, the “computer system” includes a homepage providing environment (or display environment) if a WWW system is used. The “computer-readable recording medium” means a flexible disk, a magneto-optical disk, a ROM, a writable nonvolatile memory such as a flash memory, a portable medium such as a CD-ROM, a hard disk built in a computer system, etc. This is a storage device.

  Further, the “computer-readable recording medium” means a volatile memory (for example, DRAM (Dynamic DRAM) in a computer system that becomes a server or a client when a program is transmitted through a network such as the Internet or a communication line such as a telephone line. Random Access Memory)), etc., which hold programs for a certain period of time. The program may be transmitted from a computer system storing the program in a storage device or the like to another computer system via a transmission medium or by a transmission wave in the transmission medium. Here, the “transmission medium” for transmitting the program refers to a medium having a function of transmitting information, such as a network (communication network) such as the Internet or a communication line (communication line) such as a telephone line. The program may be for realizing a part of the functions described above. Furthermore, what can implement | achieve the function mentioned above in combination with the program already recorded on the computer system, and what is called a difference file (difference program) may be sufficient.

It is a block diagram which shows the structure of a presence service system by embodiment of this invention. It is a sequence diagram for demonstrating the whole operation | movement by this 1st Embodiment. It is a sequence diagram for demonstrating the whole operation | movement by this 2nd Embodiment. 5 is a flowchart for explaining the operation of the presence server 21 according to the first and second embodiments. 5 is a flowchart for explaining the operation of the presence server 21 according to the first and second embodiments. 5 is a flowchart for explaining the operation of the presence server 21 according to the first and second embodiments. 5 is a flowchart for explaining the operation of the presence server 21 according to the first and second embodiments.

Explanation of symbols

11, 12, 13 Terminal 21 Presence server 22 Presence server 23, 24 Proxy server

Claims (6)

A presence service system comprising a plurality of terminals and a server device that controls registration of presence information issued from any of the terminals and disclosure of the issued presence information to other terminals,
The server device
Receiving means for receiving presence information issued by one of the plurality of terminals and having a different configuration method depending on the service type, together with service type identification information for identifying the service type;
Holding means for holding presence information in units of user identifiers assigned to the terminal that issued the presence information;
Setting means for storing presence authorization rules received from the terminal that issued the presence information and configured by associating with the user identifier a presence authorization rule composed of service type identification information, an access permission condition, and a disclosure condition;
When a presence subscription request is received together with service type identification information from any of the plurality of terminals, based on the presence authorization rule configured by the service type identification information, the access permission / inhibition condition, and the disclosure condition, Publishability judging means for judging publishability;
A presence service system comprising: a transmission unit that transmits the presence information to a terminal that has issued a presence subscription request when the disclosure information determination unit determines that the presence information can be disclosed. The server device
When presence information is issued from any of the plurality of terminals, if presence information from the same terminal exists in the already held presence information, the existing presence information and new presence information can be selected. Coupling means coupled to the retaining means; and
A selection means for selecting corresponding presence information from the presence information combined by the combining means when it is determined that the presence information can be disclosed by the disclosure possibility determination means;
The presence service system according to claim 1, wherein the transmission means transmits the presence information selected by the selection means to a terminal that has issued a presence subscription request. The server device
3. The apparatus according to claim 1, further comprising an error response transmission unit configured to transmit an error response to the terminal that has issued the presence subscription request when the disclosure permission determination unit determines that the presence information cannot be disclosed. The presence service system described. The terminal
Issuing means for setting the service type identification information for identifying the service type of the presence information and issuing the presence information to the server device when issuing the presence information;
Public condition transmission means for generating presence authorization rules composed of service type identification information, access permission conditions, and public conditions for presence information held in the server apparatus, and transmitting the presence authorization rules to the server apparatus; The presence service system according to any one of claims 1 to 3. A presence service method for controlling the registration of presence information issued from any one of a plurality of terminals and the disclosure of the issued presence information to other terminals by a server device,
Holding presence information issued by any of the plurality of terminals and having a different configuration method depending on a service type in a unit of a user identifier assigned to the terminal;
Associating with the user identifier a presence authorization rule received from the terminal that issued the presence information and configured by service type identification information, an access permission condition, and a disclosure condition;
Upon receiving a presence subscription request together with service type identification information from any of the plurality of terminals, the presence information is disclosed based on a presence authorization rule configured from the service type identification information, the access permission / rejection condition, and the release condition. Determining whether it is possible;
And a step of transmitting the corresponding presence information to the terminal that issued the presence subscription request when it is determined that the presence information can be disclosed. In a computer of a server device that controls registration of presence information issued from any one of a plurality of terminals, and disclosure of the issued presence information to other terminals,
Receiving presence information issued by one of the plurality of terminals and having a different configuration method depending on the service type, together with service type identification information for identifying the service type;
Associating with the user identifier a presence authorization rule that is received from the terminal that issued the presence information and that is configured from service type identification information, access permission / rejection conditions, and disclosure conditions;
Upon receiving a presence subscription request together with service type identification information from any of the plurality of terminals, the presence information is disclosed based on a presence authorization rule configured from the service type identification information, the access permission / rejection condition, and the release condition. Determining whether it is possible;
And a step of transmitting the presence information to a terminal that has issued a presence subscription request when it is determined that the presence information can be disclosed.

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