Method and apparatus for alarming on occurrence of cell secession of a mobile station in a mobile communication system
First Claim
1. A method for alarming on occurrence of cell secession of a mobile station in a mobile communication system, comprising the steps of:
- receiving in a base station transceiver subsystem in the mobile communication system power-related information transmitted from a corresponding mobile station in the mobile communication system;
analyzing the power-related information received to determine whether the corresponding mobile station has seceded from a corresponding cell in the mobile communication system; and
transmitting cell secession alarm information to the corresponding mobile station when it is determined from the analyzed power-related information that the corresponding mobile station has seceded from the corresponding cell to enable the corresponding mobile station to perform a cell secession alarm operation.
1 Assignment
0 Petitions
Accused Products
Abstract
A method and apparatus are provided for alarming upon occurrence of or expected occurrence of cell secession of a mobile station in a mobile communication system. A base station transceiver subsystem (BTS) receives power-related information transmitted from a mobile station, and analyzes the power-related information to determine whether a mobile station has seceded from a corresponding cell. The BTS transmits cell secession alarm information to a cell-seceded mobile station to enable the cell-seceded mobile station to perform a cell secession alarm operation to advise a subscriber of the cell-seceded mobile station of a possible call drop.
48 Citations
24 Claims
-
1. A method for alarming on occurrence of cell secession of a mobile station in a mobile communication system, comprising the steps of:
-
receiving in a base station transceiver subsystem in the mobile communication system power-related information transmitted from a corresponding mobile station in the mobile communication system;
analyzing the power-related information received to determine whether the corresponding mobile station has seceded from a corresponding cell in the mobile communication system; and
transmitting cell secession alarm information to the corresponding mobile station when it is determined from the analyzed power-related information that the corresponding mobile station has seceded from the corresponding cell to enable the corresponding mobile station to perform a cell secession alarm operation. - View Dependent Claims (2, 3, 4, 5, 6)
-
-
7. A method for alarming on occurrence of cell secession of a mobile station in a private radio mobile communication system, comprising the steps of:
-
receiving power-related information transmitted from a corresponding mobile station in a corresponding cell in the private radio mobile communication system;
analyzing the power-related information received to determine whether the corresponding mobile station has seceded from the corresponding cell in the private radio mobile communication system; and
transmitting predetermined cell secession alarm information to the corresponding mobile station, when it is determined from the analyzed power-related information that the corresponding mobile station has seceded from the corresponding cell and when the corresponding mobile station is registered to use a private radio communication service and is having an extension call with another registered mobile station, so as to enable the corresponding mobile station to perform a cell secession alarm operation. - View Dependent Claims (8, 9, 10, 11, 12)
-
-
13. A method for alarming on occurrence of cell secession of a mobile station in a mobile communication system, comprising the steps of:
-
receiving in a base station transceiver subsystem in the mobile communication system a power control parameter of a corresponding mobile station in the mobile communication system from a corresponding base station controller in the mobile communication system;
receiving by the base station transceiver subsystem information as to a received power level from the corresponding mobile station, the received power level being determined by the corresponding mobile station measuring received power from the base station transceiver subsystem;
detecting by the base station transceiver subsystem information as to a frame quality by determining a forward frame error rate from the received information as to the received power level from the corresponding mobile station;
comparing the determined forward frame error rate with a value corresponding to the power control parameter received from the corresponding base station controller to provide a determined power level of the corresponding mobile station;
determining when the determined power level of the corresponding mobile station decreases below a predetermined reference power level, a determined power level less than the predetermined reference power level indicating the corresponding mobile station has seceded from a corresponding cell in the mobile communication system; and
transmitting cell secession alarm information to the corresponding mobile station when the determined power level is less than the predetermined reference power level indicating the corresponding mobile station has seceded from the corresponding cell in the mobile communication system. - View Dependent Claims (14, 15, 16)
-
-
17. An apparatus for alarming on occurrence of cell secession of a mobile station in a mobile communication system, comprising:
-
a base station transceiver subsystem in the mobile communication system for receiving power-related information transmitted from a corresponding mobile station in the mobile communication system;
means for analyzing the power-related information received to determine whether the corresponding mobile station has seceded from a corresponding cell in the mobile communication system; and
means for transmitting cell secession alarm information to the corresponding mobile station when the means for analyzing determines that the corresponding mobile station has seceded from the corresponding cell to enable the corresponding mobile station to perform a cell secession alarm operation. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24)
-
Specification