Method for the operation of a radio system and system to execute the method

• US 6,356,762 B1
• Filed: 09/16/1998
• Issued: 03/12/2002
• Est. Priority Date: 09/16/1997
• Status: Expired due to Fees

• Current Assignee: ASCOM Business Systems AG
• Original Assignee: ASCOM Business Systems AG
• Inventors: Guenther, Christoph
• Primary Examiner(s): Vo, Nguyen T.
• Assistant Examiner(s): MEHRPOUR, NAGHMEH
• Application Number:
  US09/154,455
• Time in Patent Office: 1,273 Days
• Field of Search: 455/462, 455/463, 455/465, 455/435, 455/456, 455/554, 455/555, 455/218, 455/212, 455/194.1, 455/426, 455/552, 455/424
• US Class Current: 455/456.4
• CPC Class Codes: H04W 16/16 for PBS [Private Base Station] arrangements
• CPC Class Codes: H04W 88/08 Access point devices

Abstract

A method for the operation of a radio system (28) includes muting, the fixed station (25) of the radio system (28) when no operable mobile telecommunication terminal (30) is located in its coverage area (20). A system to execute the procedure comprises a fixed station (25) for the radio system (28) and a mobile telecommunication terminal (30) suited to communicate with the radio system (28). The fixed station (25) has a circuit to detect an operable mobile telecommunication terminal (30) in its coverage area (20) and a circuit to mute the transmitter of the fixed station (25), depending on the state of the detection circuit. The mobile telecommunication terminal (30) has a circuit to determine its position—preferably based on signals of another radio system (18)—and to check whether that position is basically located within the coverage area (20) of a fixed station (25) of the radio system (28) with which it is entitled to communicate, as well as a circuit to execute a registration procedure which can trigger the activation of the radio system (28).

Claims

1. A method for the operation of a radio system, comprising the steps of:

muting entirely a fixed station of the radio system when no operable mobile telecommunication terminal is located in a coverage area of the fixed station, the fixed station being muted after the last one of a number of registrations of mobile telecommunication terminals with the fixed station has been canceled and remaining muted as long as no mobile telecommunication terminal is registered with it, and

transmitting an identification signal from the fixed station via a predetermined channel if at least one operable mobile telecommunication terminal is located within the coverage area, the fixed station beginning to transmit not until at least one mobile telecommunication terminal has registered with it.

2. The method according to claim 1 further including determining a position from time to time of the mobile communication terminal and,

checking whether the position is basically located within the coverage area of the fixed station of the radio system with which it is entitled to communicate, while— if applicable—

the mobile telecommunication terminal tries to register with the fixed station as an operable mobile telecommunication terminal via a registration signal.

3. The method according to claim 2, further including sending by the mobile telecommunication terminal the registration signal via a channel out of a set of predetermined channels, which are continuously monitored by the fixed station.

4. The method according to one of the claims 1, 2 and 3, further including operating the radio system in accordance with GSM-CTS standard.

5. The method according to claim 2, communicating further including communicating via the mobile telecommunication terminal with another radio system for determining the mobile telecommunication terminal position based on signals which it receives from the other radio system.

6. The method according to claim 5, overlapping by both radio systems in their operation, which includes geographical operation and frequency operation.

7. The method according to claim 5, further including operating the other radio system as a mobile radio system according to the GSM standard.

8. The method according to claim 1 further including monitoring continuously by the mobile telecommunication terminal an identification signal of the fixed station after its registration with the fixed station, and canceling its registration with the fixed station as soon as it recognizes the imminent leaving of the coverage area of the fixed station based on a weakening of the signal.

9. The method according to claim 2, further including canceling the registration of the mobile telecommunication terminal with the fixed station unless it is renewed within a specified time frame after a last registration.

10. A system for operation of a radio system comprising:

a fixed station which is entirely muted when no operable mobile telecommunication terminal is located within a coverage area of the fixed station, and

said fixed station transmits an identification signal when said telecommunication terminal is located within the coverage area of the fixed station.

11. The system according to claim 10 wherein the fixed station includes,

a circuit to detect an operable mobile telecommunication terminal in a coverage area of the fixed station, and

means for muting including a circuit to mute a transmitter of the fixed station depending on the operational state of the circuit to detect.

12. The system according to claim 10, including a circuit to determine a position of the mobile telecommunication terminal—

preferably based on signals from another radio system and to check whether that position is located largely within the coverage of the fixed station of the radio system with which it is entitled to communicate and a circuit to execute a registration procedure.