Mobile communication system and base station

• US 6,026,295 A
• Filed: 08/31/1995
• Issued: 02/15/2000
• Est. Priority Date: 02/27/1995
• Status: Expired due to Term

• Current Assignee: Fujitsu Limited
• Original Assignee: Fujitsu Limited
• Inventors: Okada, Yasushi
• Primary Examiner(s): Hudspeth, David R.
• Assistant Examiner(s): Lerner, Martin
• Application Number:
  US08/522,022
• Time in Patent Office: 1,629 Days
• Field of Search: 379/58, 379/59, 379/60, 379/63, 455/34.1, 455/33.1, 455/33.2, 455/445, 455/416, 455/463, 455/435
• US Class Current: 455/416
• CPC Class Codes: H04W 84/105 PBS [Private Base Station] network H04W84/12 - H04W84/16 take precedence
• CPC Class Codes: H04W 84/16 WPBX [Wireless Private Branch Exchange]

Abstract

A mobile communication system in which a mobile station communicates through a base station connected to a switch system is proposed. In the system, the base station includes a registration memory registering a mobile station located in an area defined by the base station, a switch processing part performing switching and connecting, and a control part. The control part includes a configuration controlling the switch processing part to connect a calling mobile station and a called mobile station in the area.

Claims

1. A mobile communication system in which a mobile station communicates through a base station connected to a switch system, comprising:

a registration memory registering a specified mobile station located in an area defined by the base station;

a switch processor performing switching and connecting; and

a controller for setting a flag for the specified mobile station in the registration memory when a mobile station in the area defined by the base station is the specified mobile station and for controlling said switch processor to connect a calling mobile station and a called mobile station in said area when the flag is set;

wherein said registration memory, said switch processor and said controller are located in said base station, so that a switching operation between mobile stations in said area can be performed by said base station without said switch system.

2. The mobile communication system as claimed in claim 1, further comprising:

a speech conference processor positioned in said base station and summing and distributing speech signals; and

a configuration positioned in said base station and connecting a plurality of mobile stations in said area to said speech conference processor through said switch processor, and carrying out a conference call between the plurality of mobile stations in said area.

3. The mobile communication system as claimed in claim 1, further comprising:

a speech conference processor positioned in said base station and summing and distributing speech signals; and

a configuration positioned in said base station and connecting a plurality of mobile stations in said area and a line connected to said switch system to said speech conference processor through said switch processor, and carrying out a conference call between the plurality of mobile stations in said area and at least one terminal connected to said switch system.

4. A mobile communication system in which a mobile station communicates through a base station connected to a switch system, comprising:

a registration memory registering a specified mobile station located in an area defined by the base station;

a switch processor performing switching and connecting; and

a controller;

wherein said controller comprises a configuration transmitting a location-registration request from a mobile station to a system management station, setting a flag for the specified mobile station in the registration memory when the mobile station transmitting the location-registration request is the specified mobile station, and for controlling said switch processor to connect a calling mobile station and a called mobile station when the flag is set;

said registration memory, said switch processor and said controller being located in said base station so that a switching operation between mobile stations in said area can be performed by said base station without said switch system.

5. The mobile communication system as claimed in claim 4, and further comprising:

a speech conference processor positioned in said base station and summing and distributing speech signals; and

a configuration positioned in said base station and connecting a plurality of mobile stations in said area to said speech conference processor through said switch processor, and carrying out a conference call between the plurality of mobile stations in said area.

6. The mobile communication system as claimed in claim 4, and further comprising:

a speech conference processor positioned in said base station and summing and distributing speech signals; and

a configuration positioned in said base station and connecting a plurality of mobile stations in said area and a line connected to said switch system to said speech conference processor through said switch processor, and carrying out a conference call between the plurality of mobile stations in said area and at least one terminal connected to said switch system.

7. A mobile communication system in which a mobile station communicates through a base station connected to a switch system, comprising:

a registration memory registering a mobile station located in an area defined by the base station;

a switch processor performing switching and connecting; and

a controller;

wherein said controller includes;

a first configuration previously registering a specified mobile station to said registration memory, sorting the registration memory in response to a location-registration request from the mobile station in the area defined by said base station and setting a flag for the specified mobile station when said mobile station in the area is the specified mobile station; and

a second configuration sorting said registration memory in response to a call from a mobile station in said area defined by said base station, and controlling said switch processor to connect the calling mobile station and a called mobile station when the flag for the called mobile station is set in said registration memory;

said registration memory, said switch processor and said controller being located in said base station so that a switching operation between mobile stations in said area can be performed by said base station without said switch system.

8. The mobile communication system as claimed in claim 7, wherein said controller comprises a third configuration controlling said switch processor to connect a calling mobile station and a called mobile station located in the area defined by said base station when the flags for the calling mobile station and the called mobile station are set in said registration memory instead of said second configuration.

9. A base station, connected to a switch system, for communicating with a specified mobile station in an area defined by the base station, comprising:

a registration memory registering the specified mobile station located in said area defined by the base station;

a switch processor performing switching and connecting; and

a controller referring to said registration memory based on calling information from a calling mobile station located in said area, setting a flag for the specified mobile station in the registration memory when said calling mobile station is the specified mobile station and for controlling said switch processing part to connect said calling mobile station and a called mobile station when the flag is set;

said registration memory, said switch processor and said controller being placed in said base station so that a switching operation between said calling mobile station and said called mobile station can be performed by said base station without said switch system.

10. The base station as claimed in claim 9, wherein said base station further comprises a selector for selecting one of a remote mode transmitting said calling information from the calling mobile station in said area to said switch system and a local mode transmitting said calling information to said controller.

11. The base station as claimed in claim 10, wherein said controller further comprises a configuration discriminating whether or not the calling mobile station in said area is one of specified mobile stations based on said calling information, and selecting said local mode to control said switch processor when the calling mobile station is one of the specified mobile stations and selecting said remote mode when the calling mobile station is not one of the specified mobile stations.

12. The base station as claimed in claim 9, wherein said base station further comprises:

a speech processor converting a signal between a signal format for said switch system and a signal format for the mobile station; and

a bypass switch for bypassing said speech processing part;

wherein said controller comprises a configuration discriminating whether the signal from the mobile station is a speech signal or a data signal, and controlling said bypass switch to bypass said speech processor when the signal is the data signal.

13. The base station as claimed in claim 9, wherein said base station further comprises a speech conference processor for summing and distributing speech signals from a plurality of mobile stations, wherein said switch processor further comprises a configuration connecting said plurality of mobile stations to said speech conference processor, and said controller further comprises a configuration controlling a connection of the plurality of mobile stations to said speech conference processor through said switch processor in response to a conference call request from the mobile station.

14. The base station as claimed in claim 9, wherein said base station further comprises a speech conference processor for summing and distributing speech signals from a plurality of mobile stations, wherein said switch processor further comprises a configuration connecting said plurality of mobile stations and at least one line connected to the switch system to said speech conference processor, and said controller further comprises a configuration controlling a connection of the plurality of mobile stations and the line connected to the switch system to said speech conference processor through said switch processor in response to a conference call request from a terminal.

15. A mobile communication system in which a mobile station communicates through a base station connected to a switch system, comprising:

a registration memory registering a mobile station located in an area defined by the base station;

a switch processor performing switching and connecting; and

controller including;

a first configuration previously registering a specified mobile station to said registration memory, sorting the registration memory in response to a location-registration request from the mobile station in the area defined by said base station and setting a flag for the specified mobile station when said mobile station in the area is the specified mobile station;

a second configuration sorting said registration memory in response to a call from a mobile station in said area defined by said base station, and controlling said switch processor to connect the calling mobile station and a called mobile station when the flag for the called mobile station is set in said registration memory;

a speech conference processor summing and distributing speech signals; and

a configuration connecting a plurality of mobile stations in said area to said speech conference processor through said switch processor, and carrying out a conference call between the plurality of mobile stations in said area;

said registration memory, said switch processor and said controller being located in said base station so that a switching operation between the plurality of mobile stations in said area can be performed by said base station without said switch system.