Radio resource control method in mobile communication system, and mobile communication system
First Claim
1. A radio resource control method in a mobile communication system comprising a serving cell formed by a serving base station, at least one neighbour cell formed by a neighbour base station, and user equipment capable of receiving signals from said base stations, the method comprising:
- camping, in an idle state, on the serving cell;
receiving, in the user equipment, control information for controlling cell change procedures of the user equipment, said cell change being conducted from the serving cell to a target cell; and
performing, in the user equipment, the cell change procedures based on the received control information;
adjusting, before the control information is received, at least one element of said control information according to a predetermined time pattern, thus forming adjusted control information; and
controlling the cell change procedures based on said adjusted control information.
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Accused Products
Abstract
The invention relates to a radio resource control method, a mobile communications system and a network element implementing the method. According to the invention, the cell change procedures performed by the user equipment in an idle state are controlled dynamically with control information that is adjusted according to a predetermined time pattern. The invention enables for instance an advanced cell change in an idle state, thus reducing the probability of a handover while the user equipment is in a dedicated connection to the network.
148 Citations
33 Claims
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1. A radio resource control method in a mobile communication system comprising a serving cell formed by a serving base station, at least one neighbour cell formed by a neighbour base station, and user equipment capable of receiving signals from said base stations, the method comprising:
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camping, in an idle state, on the serving cell;
receiving, in the user equipment, control information for controlling cell change procedures of the user equipment, said cell change being conducted from the serving cell to a target cell; and
performing, in the user equipment, the cell change procedures based on the received control information;
adjusting, before the control information is received, at least one element of said control information according to a predetermined time pattern, thus forming adjusted control information; and
controlling the cell change procedures based on said adjusted control information. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A mobile communication system, comprising:
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a network part for providing the fixed infrastructure of the mobile communication system, the network part comprising a serving base station for forming a serving cell;
and a neighbour base station for forming a neighbour cell;
a user equipment comprising receiving means for receiving signals from the serving base station and from the neighbour base station;
the network part further comprises control means for controlling cell change procedures with control information, said cell change being conducted from the serving cell to a target cell;
the user equipment further comprising cell change procedure means for performing cell change procedures based on control information received from the network part;
wherein the receiving means and cell change procedure means are configured to camp on the serving cell in an idle state; and
wherein the network part further comprises adjusting means for adjusting at least one element of said control information according to a predetermined time pattern, thus forming adjusted control information. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
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33. A network element of a mobile communication system, which comprises:
- a serving base station for forming a serving cell;
a neighbour base station for forming a neighbour cell; and
a user equipment camped on the serving cell in an idle state and comprising receiving means for receiving signals from the serving base station and from the neighbour base station, the user equipment further comprising cell change procedure means for performing cell change procedures based on control information; and
control means for controlling cell change procedures with control information, said cell change being conducted from the serving cell to a target cell, the network element further comprising adjusting means for adjusting at least one element of said control information according to a predetermined time pattern, thus forming adjusted control information.
- a serving base station for forming a serving cell;
Specification