Personal communication service distributed control system for a network communication system including a plurality of hardware resources

• US 5,696,900 A
• Filed: 04/28/1995
• Issued: 12/09/1997
• Est. Priority Date: 06/07/1994
• Status: Expired due to Term

• Current Assignee: Fujitsu Limited
• Original Assignee: Fujitsu Limited
• Inventors: Kuwahara, Soichi, Iida, Ichiro, Yamashima, Hiroyuki, Nishigaya, Takashi
• Primary Examiner(s): Ray, Gopal C.
• Application Number:
  US08/431,273
• Time in Patent Office: 956 Days
• Field of Search: 395/200.15, 395/650, 395/186, 395/600, 395/200.01, 395/200.02, 395/800, 395/610, 395/187.01, 380/23, 380/25, 370/58.2, 370/420, 379/201, 379/95, 340/825.06, 340/825.34, 364/514 A
• US Class Current: 709/229
• CPC Class Codes: H04L 51/00 User-to-user messaging in packet-switching networks, transmitted according to store-and-forward or real-time protocols, e.g. e-mail
• CPC Class Codes: H04L 51/066 Format adaptation, e.g. format conversion or compression
• CPC Class Codes: H04L 51/23 Reliability checks, e.g. acknowledgments or fault reporting
• CPC Class Codes: H04L 51/56 Unified messaging, e.g. interactions between e-mail, instant messaging or converged IP messaging [CPM]
• CPC Class Codes: H04L 51/58 Message adaptation for wireless communication
• CPC Class Codes: H04L 61/00 Network arrangements, protocols or services for addressing or naming
• CPC Class Codes: H04M 3/42 Systems providing special services or facilities to subscribers specially adapted for wireless communication networks H04W4/00
• CPC Class Codes: H04Q 3/005 Personal communication services, e.g. provisions for portability of subscriber numbers

Abstract

A personal communication service distributed control system provides a personal communication service in a combination of different networks based on the same personal ID without requiring a person originating information to be aware of the type of terminal used by a terminating person. The personal communication service distributed control system includes a plurality of hardware resources. Each of the service control apparatuses includes a plurality of service control program sections, a resource control program section, and a directory control program section. The directory control program section includes a section for referring to a distributed directory in order to perform retrieval for a transfer destination and routing for a control signal simultaneously.

Claims

1. A personal communication service distributed control system for a communication system wherein when a user initiates a communication, a personal identification information service defined for each user is performed using personal identification information that provides identification of the user, comprising:

a plurality of hardware resources constituting a physical network; and

a plurality of service control apparatus connected to said hardware resources;

each of said service control apparatuses including a plurality of service control program means for controlling said physical network independently of each other for individual pieces of personal identification information, resources control program means for controlling said hardware resources present discretely in said physical network, and directory management program means including a distributed directory for uniquely identifying said service control program means, said resource control program means and said hardware resources, said distributed directory having a data structure wherein objects of a plurality of directories are linked by pointers and each of the objects has position information of the other objects and address information for transferring a control signal, said directory management program means further including transfer destination retrieval function means and transfer function means for a control signal so that reference is made to said distributed directory to perform retrieval for a transfer destination and routing for the control signal simultaneously.

2. A personal communication service distributed control system as claimed in claim 1, wherein said distributed directory is constructed using a home directory for holding position information of said service control program means or said resource control program means and an alias directory for holding information of a connection relationship of the divided directory.

3. A personal communication service distributed control system as claimed in claim 2, wherein said directory management program means of said service control apparatus includes a correspondence table between home directory names of said service control program means and said resource control program means present in the same service control apparatus and position information of the directories, and means operable when a request for transfer of a message for communication between programs is received for causing said directory management program means to refer to said correspondence table and perform high speed communication between programs without performing directory retrieval from a root of the directory to the home directory when a reception side address coincides with a name of a home directory of said service control program means or said resource control program means or includes an abbreviation mark representative of a transmission side home directory.

4. A personal communication service distributed control system as claimed in claim 2, wherein a home directory of said directory management program means of said service control apparatus has a storage area for a current directory name which indicates a start point of retrieval and a storage area for position information of the current directory, and means operable when an abbreviation mark representative of said current directory is included in a designation of a reception side address for communication between programs for causing said directory management program means to refer to a correspondence table of said home directory and the position information of said current directory and perform high speed communication between the programs without performing directory retrieval from a root of the directory to said current directory.

5. A personal communication service distributed control system as claimed in claim 2, wherein said directory management program means has a storage area provided in each of objects thereof for storing information of an event notification requirement in order to realize notification reservation of an object state variation event to the object and has a storage area provided in a home directory of the object for storing a correspondence table between an event notification destination home directory name and position information of the event notification destination home directory, and includes means for referring to the notification requirement of the object and the correspondence table and performing notification of the event after the state of the object is updated.

6. A personal communication service distributed control system as claimed in claim 2, wherein, in order to realize reservation of notification of an object state variation event to all of objects present under a particular directory in said directory management program means, each of the directories of said directory management program means has a storage area for storing information of an event notification requirement and a home directory above the directory or a root directory has a storage area for storing a correspondence table between names and position information of event notification destination home directories, and said directory management program means includes means for referring to the home directory of the object, the notification requirements of the root directory and the correspondence table and performing notification of the event after the state of the object is updated.

7. A personal communication service distributed control system as claimed in claim 1, wherein each of said service control program means includes a personal identification information directory for allowing another piece of personal identification information of the user to be defined newly, and means for using a directory name of the re-defined personal identification information for a reception side address for communication between programs to allow said directory management program means to perform routing of the control signal without retrieving said distributed directory.

8. A personal communication service distributed control system as claimed in claim 1, wherein said directory management program means includes an object as a storage area for storing states of communication terminals which can access said hardware resources, a directory for identification names peculiar to said communication terminals, and a directory for areas in which said communication terminals are present, and each of said service control program means has a storage area for storing a list of the peculiar identification names of the terminals used by the user, and includes means for causing management of the position of any of said communication terminals to be performed by variation of an area directory in said directory management program means and causing the corresponding service control program means to perform control of registration of the terminal of the user to perform management of the positions of different types of communication terminals and registration control of the user.

9. A personal communication service distributed control system for a communication system wherein when a user initiates a communication, a personal identification information service defined for each user is performed using personal identification information that provides identification of the user, comprising:

a plurality of hardware resources constituting a physical network; and

a plurality of service control apparatuses connected to said hardware resources;

each of said service control apparatuses including a plurality of service control program means for controlling said physical network independently of each other for individual pieces of personal identification information, resource control program means for controlling said hardware resources present discretely in said physical network, and directory management program means including a distributed directory for uniquely identifying said service control program means, said resource control program means and said hardware resources, said distributed directory having a data structure wherein objects of a plurality of directories are linked by pointers and each of the objects has position information of the other objects and address information for transferring a control signal, said directory management program means further including transfer destination retrieval function means and transfer function means for a control signal so that reference is made to said distributed directory to perform retrieval for a transfer destination of and routing for the control signal simultaneously, said distributed directory including a personal identification information directory for identifying the service control program means for the individual users, a resource directory for identifying said hardware resources, an area directory for identifying physical positions of the users and said hardware resources, and movement management means operable when a user or a communication terminal which can access any of said hardware resources moves for varying said area directory and moving said service control program means of the user or the communication terminal.

10. A personal communication service distributed control system as claimed in claim 9, wherein said service control program means includes a memory for storing an area directory name representative of a position of the service control program means after its movement and successively updates said memory, said service control program means using a relative address of said area directory when said service control program means tries to get information of the area directory or transmit a control signal to an object as a storage area for storing a state of the communication terminal.

11. A personal communication service distributed control system as claimed in claim 10, wherein the copy of the home object of said resource control program means which are referred to by both of said area directory and a cache area is constructed as a common memory.

12. A personal communication service distributed control system as claimed in claim 9, wherein said area directory of said directory management program means has a copy of a home object as a storage area for storing a physical position of said service control program means, and said resource control program means uses a relative address of said area directory when said resource control program means transmits a control signal to said service control program means.

13. A personal communication service distributed control system as claimed in claim 12, wherein the copy of the home object of said resource control program means which are referred to by both of said area directory and a cache area is constructed as a common memory.

14. A personal communication service distributed control system as claimed in claim 9, wherein said personal identification information directory in said directory management program means has a cache area serving as a memory for storing data of the personal identification information of the service control apparatus, and means for moving, when the service control program means moves between different ones of said service control apparatus, the personal identification information and a copy of the home object of the service control program means between the control nodes into said cache area and for preferentially retrieving said directory cache when a control signal is to be transmitted between the service control program means.

15. A personal communication service distributed control system as claimed in claim 9, wherein the copy of the home object of said resource control program means which are referred to by both of said area directory and a cache area is constructed as a common memory.

16. A personal communication service distributed control system as claimed in claim 9, wherein each of said service control program means has a movement permission information storage area for setting permission or inhibition of movement of the service control program means in advance, and the service control apparatus determines permission or inhibition of movement of the service control program means based on the setting in said movement permission information storage area.

17. A personal communication service distributed control system as claimed in claim 9, wherein each of said service control program means has a movement delay time setting section and movement of said service control program means is delayed based on the setting of said movement delay time setting section.

18. A service control apparatus for a personal communication service distributed control system connected to a plurality of hardware resources constituting a physical network for performing a personal identification information service defined for each user using personal identification information that provides identification of the user, comprising:

a plurality of service control program means for controlling said physical network independently of each other for the individual pieces of personal identification information;

resource control program means for controlling said hardware resources present discretely in said physical network; and

directory management program means including a distributed directory for uniquely identifying said service control program means, said resource control program means and said hardware resources, said distributed directory having a data structure wherein objects of a plurality of directories are linked by pointers and each of the objects has position information of the other objects and address information for transferring a control signal, said directory management program means further including transfer destination retrieval function means and transfer function means for a control signal so that said distributed directory to perform retrieval for a transfer destination and routing for the control signal simultaneously.

19. A service control apparatus for personal communication service distributed control system as claimed in claim 18, wherein said distributed directory is constructed using a home directory for holding position information of said service control program means or said resource control program means and an alias directory for holding information of a connection relationship of the divided directory.

20. A service control apparatus for a personal communication service distributed control system as claimed in claim 19, wherein said directory management program means of said service control apparatus includes a correspondence table between home directory names of said service control program means and said resource control program means present in the same service control apparatus and position information of the directories, and means operable when a request for transfer of a message for communication between programs is received for causing said directory management program means to refer to said correspondence table and perform high speed communication between programs without performing directory retrieval from a root of the directory to the home directory when a reception side address coincides with a name of a home directory of said service control program means or said resource control program means or includes an abbreviation mark representative of a transmission side home directory.

21. A service control apparatus for a personal communication service distributed control system as claimed in claim 19, wherein a home directory of said directory management program means of said service control apparatus has a storage area for a current directory name which indicates a start point of retrieval and a storage area for position information of the current directory, and means operable when an abbreviation mark representative of said current directory is included in a designation of a reception side address for communication between programs for causing said directory management program means to refer to a correspondence table of said home directory and the position information of said current directory and perform high speed communication between the programs without performing directory retrieval from a root of the directory to said current directory.

22. A service control apparatus for a personal communication service distributed control system as claimed in claim 19, wherein said directory management program means has a storage area provided in each of objects thereof for storing information of an event notification requirement in order to realize notification reservation of an object state variation event to the object and has a storage area provided in a home directory of the object for storing a correspondence table between an event notification destination home directory name and position information of the event notification destination home directory, and includes means for referring to the notification requirement of the object and the correspondence table and performing notification of the event after the state of the object is updated.

23. A service control apparatus for a personal communication service distributed control system as claimed in claim 19, wherein, in order to realize reservation of notification of an object state variation event to all of objects present under a particular directory in said directory management program means, each of the directories of said directory management program means has a storage area for storing information of an event notification requirement and a home directory above the directory or a root directory has a storage area for storing a correspondence table between names and position information of event notification destination home directories, and said directory management program means includes means for referring to the home directory of the object, the notification requirements of the root directory and the correspondence table and performing notification of the event after the state of the object is updated.

24. A service control apparatus for a personal communication service distributed control system as claimed in claim 18, wherein each of said service control program means includes a personal identification information directory for allowing another piece of personal identification information of the user to be defined newly, and means for using a directory name of the re-defined personal identification information for a reception side address for communication between programs to allow said directory management program means to perform routing of the control signal without retrieving said distributed directory.

25. A service control apparatus for a personal communication service distributed control system as claimed in claim 18, wherein said directory management program means includes an object as a storage area for storing states of communication terminals which can access said hardware resources, a directory for identification names peculiar to said communication terminals, and a directory for areas in which said communication terminals are present, and each of said service control program means has a storage area for storing a list of the peculiar identification names of the terminals used by the user, and includes means for causing management of the position of any of said communication terminals to be performed by variation of an area directory in said directory management program means and causing the corresponding service control program means to perform control of registration of the terminal of the user to perform management of the positions of different types of communication terminals and registration control of the user.

26. A service control apparatus for a personal communication service distributed control system connected to a plurality of hardware resources constituting a physical network for performing a personal identification information service defined for each user using personal identification information that provided identification of the user, comprising:

a plurality of service control program means for controlling said physical network independently of each other for individual pieces of personal identification information;

resource control program means for controlling said hardware resources present discretely in said physical network; and

directory management program means including a distributed directory for uniquely identifying said service control program means, said resource control program means and said hardware resources, said distributed directory having a data structure wherein objects of a plurality of directories are linked by pointers and each of the objects has position information of the other objects and address information for transferring a control signal, said directory management program means further including transfer destination retrieval function means and transfer function means for a control signal so that reference is made to said distributed directory to perform retrieval for a transfer destination and routing for the control signal simultaneously;

said distributed directory including a personal identification information directory for identifying the service control program means for the individual users, a resource directory for identifying said hardware resources, an area directory for identifying physical positions of the users and said hardware resources, and movement management means operable when a user or a communication terminal which can access any of said hardware resources moves for varying said area directory and moving said service control program means of the user or the communication terminal.

27. A service control apparatus for a personal communication service distributed control system as claimed in claim 26, wherein said service control program means includes a memory for storing an area directory name representative of a position of the service control program means after its movement and successively updates said memory, said service control program means using a relative address of said area directory when said service control program means tries to get information of the area directory or transmit a control signal to an object as a storage area for storing a state of the communication terminal.

28. A service control apparatus for a personal communication service distributed control system as claimed in claim 27, wherein the copy of the home object of said resource control program means which are referred to by both of said area directory and a cache area is constructed as a common memory.

29. A service control apparatus for a personal communication service distributed control system as claimed in claim 26, wherein said area directory of said directory management program means has a copy of a home object as a storage area for storing a physical position of said service control program means, and said resource control program means uses a relative address of said area directory when said resource control program means transmits a control signal to said service control program means.

30. A service control apparatus for a personal communication service distributed control system as claimed in claim 29, wherein the copy of the home object of said resource control program means which are referred to by both of said area directory and a cache area is constructed as a common memory.

31. A service control apparatus for a personal communication service distributed control system as claimed in claim 26, wherein said personal identification information directory in said directory management program means has a cache area serving as a memory for storing data of a personal identification information of the service control apparatus, and means for moving, when the service control program means moves between different ones of said service control apparatus, the personal identification information and a copy of the home object of the service control program means between the control nodes into said cache area and for preferentially retrieving said directory cache when a control signal is to be transmitted between the service control program means.

32. A service control apparatus for a personal communication service distributed control system as claimed in claim 26, wherein the copy of the home object of said resource control program means which are referred to by both of said area directory and a cache area is constructed as a common memory.

33. A service control apparatus for a personal communication service distributed control system as claimed in claim 26, wherein each of said service control program means has a movement permission information storage area for setting permission or inhibition of movement of the service control program means in advance, and the service control apparatus determines permission or inhibition of movement of the service control program means based on the setting in said movement permission information storage area.

34. A service control apparatus for a personal communication service distributed control system as claimed in claim 26, wherein each of said service control program means has a movement delay time setting section and movement of said service control program means is delayed based on the setting of said movement delay time setting section.