Wireless communicating method, wireless communicating system, communicating station, and controlling station

• US 6,542,495 B1
• Filed: 03/08/1999
• Issued: 04/01/2003
• Est. Priority Date: 03/17/1998
• Status: Expired due to Term

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Sugita, Takehiro
• Primary Examiner(s): Trost, William
• Assistant Examiner(s): TRAN, CONGVAN
• Application Number:
  US09/264,243
• Time in Patent Office: 1,485 Days
• Field of Search: 370/337, 370/347, 370/328, 370/329, 370/431, 370/442, 370/461, 370/462, 370/466, 370/468, 370/443, 370/280, 370/252, 370/254, 370/338, 370/345, 370/349
• US Class Current: 370/347
• CPC Class Codes: H04L 12/40052 High-speed IEEE 1394 serial bus bus transfer protocol on a daisy chain bus using an embedded synchronisation G06F13/426
• CPC Class Codes: H04L 12/40058 Isochronous transmission
• CPC Class Codes: H04W 74/06 using polling

Abstract

A wireless communicating method of a system having a plurality of communicating stations and a controlling station for causing the communicating stations to be accessed. A communication signal is transmitted between each of the communicating stations and the controlling station, the communication signal being structured as a frame divided as time periods of a control area and a data area. The controlling station transmits a communicating station state signal to each of the communicating stations and each of the communicating stations transmits a communicating station state change request signal to the controlling station so as to cause the controlling station to control access right of the communicating station corresponding to a priority level assigned to the communicating station.

Claims

1. A wireless communicating method of a system having a plurality of communicating stations and a controlling station for causing the plurality of communicating stations to be accessed, comprising the steps of:

transmitting a communication signal between each of the plurality of communicating stations and the controlling station, the communication signal being structured as a frame divided into a plurality of time periods forming a control area and a data area;

causing the controlling station to transmit a communicating station state signal to each of the plurality of communicating stations;

causing each of the plurality of communicating stations to transmit a communicating station state change request signal to the controlling station to update a priority level by using the control area of the frame, so that the controlling station controls an access right of each of the plurality of communicating stations corresponding to the priority level assigned to each of the plurality of communicating stations.

2. The wireless communicating method as set forth in claim 1, wherein

the communicating station state signal represents the priority level of each of the plurality of communicating stations and is transmitted by the controlling station in the control area of the frame.

3. The wireless communicating method as set forth in claim 1, wherein

the communicating station state change request signal causes each of the plurality of communicating stations to change the priority level assigned thereto.

4. A wireless communicating system, comprising:

a plurality of communicating stations; and

a controlling station for causing the plurality of communicating stations to be accessed,

wherein a communication signal is transmitted between each of the plurality of communicating stations and the controlling station, the communication signal being structured as a frame divided into a plurality of time periods forming a control area and a data area,

the controlling station transmits a communicating station state signal to each of the plurality of communicating stations, and

each of the plurality of communicating stations transmits a communicating station state change request signal to the controlling station to update a priority level by using the control area of the frame, so that the controlling station controls an access right of each of the plurality of communicating stations corresponding to the priority level assigned to each of the plurality of communicating stations.

5. The wireless communicating system as set forth in claim 4, wherein

the communicating station state signal represents the priority level of each of the plurality of communicating stations and is transmitted by the controlling station in the control area of the frame.

6. The wireless communicating system as set forth in claim 4, wherein

the communicating station state change request signal causes each of the plurality of communicating stations to change the priority level assigned thereto.

7. A communicating station of a wireless communicating system having a plurality of communicating stations and a controlling station for causing the plurality of communicating stations to be accessed, a communication signal being transmitted between each of the plurality of communicating stations and the controlling station and structured as a frame divided into a plurality of time periods forming a control area and a data area, the communicating station comprising:

communicating station state change request signal transmitting means for transmitting a communicating station state change request signal to update a priority level by using the control area of the frame for causing the priority level of each of the plurality of communicating stations to be changed; and

communicating station state signal receiving means for receiving a communicating station state signal transmitted by the controlling station, wherein

the priority level of each of the plurality of communicating stations is updated when each of the plurality of communicating stations transmits the communicating station state change request signal to the controlling station by using the control area of the frame, each of the plurality of communicating stations receives the communicating station state signal from the controlling station and each of the plurality of communicating stations acknowledges that the priority level has been updated.

8. The communicating station as set forth in claim 7, wherein

the communicating station state signal represents the priority level of each of the plurality of communicating stations, and

the communicating station state signal receiving means receives the communicating station state signal transmitted by the controlling station in the control area of the frame.

9. The communicating station as set forth in claim 7, wherein

the communicating station state change request signal causes each of the plurality of communicating stations to change the priority level assigned thereto.

10. A controlling station of a wireless communicating system having a plurality of communicating stations for causing the plurality of communicating stations to be accessed, a communication signal being transmitted between each of the plurality of communicating stations and the controlling station and structured as a frame divided into a plurality of time periods forming a control area and a data area, the controlling station comprising:

communicating station state change request signal receiving means for receiving a communicating station state change request signal transmitted by each of the plurality of communicating stations to update a priority level by using the control area of the frame the communicating station state change request signal causing the priority level of each of the plurality of communicating stations to be changed;

communicating station state signal transmitting means for transmitting a communicating station state for causing a state of each of the plurality of communicating stations to be set corresponding to the communicating station state change request signal; and

controlling means for controlling an access right corresponding to the priority level of each of the plurality of communicating stations, wherein

after the controlling station receives the communicating station state change request signal from each of the plurality of communicating stations, the controlling station transmits the communicating station state signal corresponding to a requested priority level and changes the access right of each of the plurality of communicating stations corresponding to the requested priority level assigned thereto.

11. The controlling station as set forth in claim 10, wherein

the communicating station state signal represents the priority level of each of the plurality of communicating stations, and

the communicating station state signal transmitting means transmits the communicating station state signal to each of the plurality of communicating stations in the control area of the frame.

12. The controlling station as set forth in claim 10, wherein

the communicating station state change request signal causes each of the plurality of communicating stations to change the priority level assigned thereto.