Method for sending and receiving system information in a wireless communication system, and a system information sending device and receiving device employing the same
First Claim
1. A method for transmitting system information in a wireless communication system supporting serving cells, the method comprising:
- identifying a change of system information of at least one serving cell configured for a user equipment;
generating a radio resource control (RRC) message comprising the changed system information; and
transmitting the generated radio resource control message to the user equipment through a special cell which is different from the at least one serving cell, wherein the special cell maintains connection with the user equipment for RRC signaling and transmits system information of the at least one serving cell.
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Accused Products
Abstract
The present invention relates to a method for sending and receiving system information about multiple component carriers in a wireless communication system, and to a system information sending and receiving device employing the same. The present invention comprises a configuration wherein one component carrier is used to transmit system information about another component carrier to a terminal. One embodiment of the present invention solves the problems which occur when using a plurality of component carriers such as additional battery consumption and time delays before receiving information, and hence it has the advantages that battery consumption and information receipt delays are reduced.
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Citations
20 Claims
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1. A method for transmitting system information in a wireless communication system supporting serving cells, the method comprising:
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identifying a change of system information of at least one serving cell configured for a user equipment; generating a radio resource control (RRC) message comprising the changed system information; and transmitting the generated radio resource control message to the user equipment through a special cell which is different from the at least one serving cell, wherein the special cell maintains connection with the user equipment for RRC signaling and transmits system information of the at least one serving cell. - View Dependent Claims (2, 3, 4, 5)
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6. A method for receiving system information in a wireless communication system supporting serving cells, the method comprising:
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receiving, by a user equipment, a radio resource control (RRC) message comprising changed system information of at least one serving cell through a special cell which is different from the at least one serving cell, wherein the special cell maintains connection with the user equipment for RRC signaling and transmits system information of the at least one serving cell; and identifying a change of system information of the at least one serving cell configured for the user equipment through the received radio resource control message. - View Dependent Claims (7, 8, 9, 10)
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11. A base station comprising an apparatus to transmit system information in a wireless communication system supporting serving cells, the base station comprising:
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a controller to identify a change of system information of at least one serving cell configured for a user equipment, and to generate a radio resource control (RRC) message comprising the changed system information; and a transmitter to transmit the generated radio resource control message to the user equipment through a special cell which is different from the at least one serving cell, wherein the special cell maintains connection with the user equipment for RRC signaling and transmits system information of the at least one serving cell. - View Dependent Claims (12, 13, 14, 15)
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16. A user equipment comprising an apparatus to receive system information in a wireless communication system supporting serving cells, the user equipment comprising:
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a receiver to receive a radio resource control (RRC) message comprising changed system information of at least one serving cell through a special cell which is different from the at least one serving cell, wherein the special cell maintains connection with the user equipment for RRC signaling and transmits system information of the at least one serving cell; and a controller to identify a change of system information of at least one serving cell configured for the user equipment through the received radio resource control message. - View Dependent Claims (17, 18, 19, 20)
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Specification