Methods and apparatus for resource management in a multi-carrier telecommunications system
First Claim
1. A method in a radio base station, for resource management in a multi-carrier system comprising a cell served by the radio base station and wherein a plurality of component carriers (CCs) are defined for said cell, the method comprising:
- assembling a message comprising information on a structure of the cell, said information including at least one CC used in the cell that is available for a user equipment (UE), for performing random access in the cell, wherein the information in said message further comprises at least one dedicated preamble to use by said UE for an initial random access in the cell and further comprises an indication of on which said at least one CC the at least one preamble is valid;
transmitting said message to the UE; and
indicating to said UE to what at least one resource the UE is to use for random access in the cell.
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Abstract
The embodiments of the present invention relate to apparatuses and methods for resource management in a multi-carrier system wherein a plurality of component carriers (CCs) is defined per cell. According to a method in an apparatus corresponding to a radio base station, a message is assembled comprising information on the structure of the cell served by the radio base station; the information including one or more CCs used in the cell that is/are available for a user equipment for performing initial access in the cell. The method also comprises, transmitting the assembled message to the user equipment and indicating to the user equipment to what resources to use for random access in the cell. The exemplary embodiments of the present invention also relates to a method in the user equipment, to a radio base station and to a user equipment.
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Citations
28 Claims
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1. A method in a radio base station, for resource management in a multi-carrier system comprising a cell served by the radio base station and wherein a plurality of component carriers (CCs) are defined for said cell, the method comprising:
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assembling a message comprising information on a structure of the cell, said information including at least one CC used in the cell that is available for a user equipment (UE), for performing random access in the cell, wherein the information in said message further comprises at least one dedicated preamble to use by said UE for an initial random access in the cell and further comprises an indication of on which said at least one CC the at least one preamble is valid; transmitting said message to the UE; and indicating to said UE to what at least one resource the UE is to use for random access in the cell. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method in a user equipment (UE) capable in operating in a multi-carrier system comprising a radio base station serving a cell, wherein a plurality of component carriers (CCs) are defined, the method comprising:
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receiving from the radio base station a message assembled by said radio base station, said message comprising information including at least one CC used in the cell that is available for the UE for performing random access in the cell, wherein the assembled message further comprises at least one dedicated preamble to use by said UE for an initial random access in the cell and an indication of on which said at least one CC the at least one preamble is valid and for which the UE is allowed to use at least one PRACH resource; determining, based on the received information, to what at least one resource to use in the cell; selecting at least one resource; and performing a random access in the cell based on the determined information. - View Dependent Claims (10, 11, 12, 13, 14)
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15. A radio base station for resource management in a multi-carrier system comprising a cell served by the radio base station and wherein a plurality of component carriers (CCs) are defined for said cell, the radio base station comprising:
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an assembler configured to assemble a message comprising information on a structure of the cell, said information including at least one CC used in the cell that is available for a user equipment (UE) for performing random access in the cell, wherein the information in said message further comprises at least one dedicated preamble to use by said UE for an initial random access in the cell and further comprises an indication of what said at least one CC the at least one preamble is valid; and a transceiver configured to transmit said message to the UE and further configured to indicate to said UE to what at least one resource the UE is to use for random access in the cell. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22)
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23. A user equipment (UE) capable in operating in a multi-carrier system comprising a radio base station serving a cell wherein a plurality of component carriers (CCs) are defined, the UE comprises:
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a transceiver configured to receive from the radio base station a message assembled by said radio base station, said message comprising information including at least one CC used in the cell that is available to the UE for performing random access in the cell, wherein the transceiver is further configured to receive in the assembled message at least one dedicated preamble to use by said UE for an initial random access in the cell and further receive in said message an indication of on which said at least one CC the at least one preamble is valid and for which the UE is allowed to use at least one PRACH resource; a processing unit configure to determine, based on the received information, to what at least one resource to use in the cell, and further configured to select at least one resource and the UE is further configured to perform a random access in the cell based on the determined information. - View Dependent Claims (24, 25, 26, 27, 28)
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Specification