Apparatus and method for determining paging alert mode in a mobile communication system
First Claim
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1. A method for determining a paging alert mode of a mobile terminal in a mobile communication system, comprising the steps of:
- determining whether there exists a sub-BTS (Base Transceiver System), based on a broadcasting channel message provided from a main BTS;
receiving a beacon paging group frame from the sub-BTS, when the sub-BTS exists; and
upon receipt of the beacon paging group frame, changing the paging alert mode to a predetermined paging alert mode by determining that the mobile terminal is located in a sub-cell formed by the sub-BTS, and changing the paging alert mode to a silent paging alert mode, and upon failure to receive the beacon paging group frame, determining that the mobile terminal is not located in the sub-cell, and changing the paging alert mode to a paging alert mode set by a subscriber,wherein the sub-BTS controls a sub-cell, which is located within a main cell that is controlled by the main BTS.
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Abstract
Disclosed is a method for determining a paging alert mode of a mobile terminal in a mobile communication system. The mobile terminal determines whether there exists a sub-BTS, depending on a broadcasting channel message provided in a cell formed by a main BTS. When the sub-BTS exists, the mobile terminal monitors receipt of a beacon paging group frame from the sub-BTS, and upon receipt of the beacon paging group frame, changes the paging alert mode to a predetermined paging alert mode.
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Citations
17 Claims
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1. A method for determining a paging alert mode of a mobile terminal in a mobile communication system, comprising the steps of:
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determining whether there exists a sub-BTS (Base Transceiver System), based on a broadcasting channel message provided from a main BTS; receiving a beacon paging group frame from the sub-BTS, when the sub-BTS exists; and
upon receipt of the beacon paging group frame, changing the paging alert mode to a predetermined paging alert mode by determining that the mobile terminal is located in a sub-cell formed by the sub-BTS, and changing the paging alert mode to a silent paging alert mode, and upon failure to receive the beacon paging group frame, determining that the mobile terminal is not located in the sub-cell, and changing the paging alert mode to a paging alert mode set by a subscriber,wherein the sub-BTS controls a sub-cell, which is located within a main cell that is controlled by the main BTS. - View Dependent Claims (2, 3, 4, 5)
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6. A method for determining a paging alert mode of a mobile terminal in a mobile communication system, comprising the steps of:
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receiving a broadcasting channel message; analyzing sub-cell information and a beacon paging period from the broadcasting channel message; determining whether a main cell formed by a main BTS includes a sub-cell, depending on the analysis result; receiving, when the sub-cell exists, a beacon paging group frame provided from a sub-BTS of the sub-cell synchronized with the main cell in the beacon paging period; upon receipt of the beacon paging group frame, setting the paging alert mode of the mobile terminal to a silent paging alert mode; upon failure to receive the beacon paging group frame, setting the paging alert mode of the mobile terminal to a paging alert mode designated by a user; determining a paging group using an ID of the mobile terminal and the number of the paging group frames in a PICH provided form the main BTS through a physical channel; accessing a paging group frame corresponding to the determined paging group out of the paging group frames in the PICH received from the main BTS in sync with the beacon paging group frame; and analyzing the accessed paging group frame, and upon detecting a paging request, indicating receipt of an incoming call by the set paging alert mode. - View Dependent Claims (7, 8, 9, 10, 11)
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12. A method for determining a paging alert mode in a mobile communication system, comprising the steps of:
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inserting sub-cell information for a sub-cell and a beacon paging period in a broadcasting channel message of a main BTS and transmitting the broadcasting channel message, when the sub-cell exists in a main cell formed by the main BTS; upon receipt of a paging request from a core network, transmitting, in a radio network controller, paging request information with a paging group frame to which a paging-requested mobile terminal belongs, out of paging group frames in a PICH; and transmitting, in a sub-BTS for forming the sub-cell, a beacon paging group frame in sync with the paging group frames, the beacon paging frame group requesting a change of the paging alert mode. - View Dependent Claims (13, 14, 15, 16)
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17. An apparatus for determining a paging alert mode in a mobile communication system, comprising:
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a main BTS for forming a main cell, and inserting, when there exists a sub-cell in the main cell, sub-cell information for the sub-cell and a beacon paging period in a broadcasting channel message before transmission; a radio network controller for transmitting paging request information with the paging group frame to which a paging-requested mobile terminal belongs, out of the paging group frames in the PICH; a sub-BTS for forming the sub-cell, and transmitting a beacon paging group frame requesting a change of the paging alert mode in response to an interrupt from the radio network controller; and a mobile terminal for setting the paging alert mode according to whether the beacon paging group frame is accessed, and performing the set paging alert mode when paging is detected by accessing the paging group frame.
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Specification