Discontinuous reception operation for licensed-assisted access
First Claim
1. A method for operating a Discontinuous Reception, DRX, function at a user equipment, wherein the user equipment is configured with at least one licensed cell and at least one unlicensed cell and operates the DRX function, the method being performed by the user equipment, the method comprising:
- receiving, from a radio base station, a DRX-active instruction to be in DRX Active Time at least on the unlicensed cell until receiving the next downlink control information related to a downlink data transmission to be received via the unlicensed cell; and
in response to receiving the DRX-active instruction, being in DRX Active Time at least on the unlicensed cell, comprising continuously monitoring a downlink control channel for downlink control information until receiving the next downlink control information related to the downlink data transmission to be received via the unlicensed cell,wherein the DRX-active instruction is included in a control element of a Medium Access Control, MAC, protocol,wherein the MAC control element comprises a predetermined identification value indicating that the MAC control element is the DRX-active instruction,wherein the DRX-active instruction is included in downlink control information, DCI, transmitted on the downlink control channel, andwherein the DCI is of the 3rd Generation Partnership Project, 3GPP, DCI Format 1A and comprises information such that the DCI;
is processed by the user equipment as an instruction to perform a random access procedure on a licensed cell when comprising an identification of this licensed cell, andis processed by the user equipment as the DRX-active instruction when comprising an identification of the unlicensed cell.
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Accused Products
Abstract
The present disclosure relates to a method for operating a Discontinuous Reception, DRX, function at a user equipment. The UE is configured with at least one licensed cell and at least one unlicensed cell and operates the DRX function. The UE receives, from a radio base station, a DRX-active instruction to be in DRX Active Time at least on the unlicensed cell until receiving the next downlink control information related to a downlink data transmission to be received via the unlicensed cell. Correspondingly, in response to the received DRX-active instruction, the UE is in DRX Active Time at least on the unlicensed cell, comprising continuously monitoring a downlink control channel for downlink control information.
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Citations
14 Claims
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1. A method for operating a Discontinuous Reception, DRX, function at a user equipment, wherein the user equipment is configured with at least one licensed cell and at least one unlicensed cell and operates the DRX function, the method being performed by the user equipment, the method comprising:
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receiving, from a radio base station, a DRX-active instruction to be in DRX Active Time at least on the unlicensed cell until receiving the next downlink control information related to a downlink data transmission to be received via the unlicensed cell; and in response to receiving the DRX-active instruction, being in DRX Active Time at least on the unlicensed cell, comprising continuously monitoring a downlink control channel for downlink control information until receiving the next downlink control information related to the downlink data transmission to be received via the unlicensed cell, wherein the DRX-active instruction is included in a control element of a Medium Access Control, MAC, protocol, wherein the MAC control element comprises a predetermined identification value indicating that the MAC control element is the DRX-active instruction, wherein the DRX-active instruction is included in downlink control information, DCI, transmitted on the downlink control channel, and wherein the DCI is of the 3rd Generation Partnership Project, 3GPP, DCI Format 1A and comprises information such that the DCI; is processed by the user equipment as an instruction to perform a random access procedure on a licensed cell when comprising an identification of this licensed cell, and is processed by the user equipment as the DRX-active instruction when comprising an identification of the unlicensed cell. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method for operating a Discontinuous Reception, DRX, function at a user equipment, wherein the user equipment is configured with at least one licensed cell and at least one unlicensed cell and operates the DRX function, the method comprising:
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receiving a DRX-active instruction to be in DRX Active Time at least on the unlicensed cell until receiving the next downlink control information related to a downlink data transmission to be received via the unlicensed cell; being in DRX Active Time at least on the unlicensed cell; and monitoring a downlink control channel, wherein the user equipment is in DRX Active Time for the unlicensed cell for a plurality of subframes in which the unlicensed cell is activated such that the user equipment continuously monitors the downlink control channel associated with the unlicensed cell for all of the subframes in which the unlicensed cell is activated, wherein the DRX-active instruction is included in a control element of a Medium Access Control, MAC, protocol, wherein the MAC control element comprises a predetermined identification value indicating that the MAC control element is the DRX-active instruction, wherein the DRX-active instruction is included in downlink control information, DCI, transmitted on the downlink control channel, and wherein the DCI is of the 3rd Generation Partnership Project, 3GPP, DCI Format 1A and comprises information such that the DCI; is processed by the user equipment as an instruction to perform a random access procedure on a licensed cell when comprising an identification of this licensed cell, and is processed by the user equipment as the DRX-active instruction when comprising an identification of the unlicensed cell. - View Dependent Claims (8, 9, 10)
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11. A user equipment for operating a Discontinuous Reception, DRX, function, wherein the user equipment is configured with at least one licensed cell and at least one unlicensed cell and operates the DRX function, the user equipment comprising:
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a receiver that receives, from a radio base station, a DRX-active instruction to be in DRX Active Time at least on the unlicensed cell until receiving the next downlink control information related to a downlink data transmission to be received via the unlicensed cell, and a processor that controls the user equipment to be, in response to the receiver receiving the DRX-active instruction, in DRX Active Time at least on the unlicensed cell, comprising continuously monitor a downlink control channel for downlink control information until receiving the next downlink control information related to a downlink data transmission to be received via the unlicensed cell, wherein the DRX-active instruction is included in a control element of a Medium Access Control, MAC, protocol, wherein the MAC control element comprises a predetermined identification value indicating that the MAC control element is the DRX-active instruction, wherein the DRX-active instruction is included in downlink control information, DCI, transmitted on the downlink control channel, and wherein the DCI is of the 3rd Generation Partnership Project, 3GPP, DCI Format 1A and comprises information such that the DCI; is processed by the user equipment as an instruction to perform a random access procedure on a licensed cell when comprising an identification of this licensed cell, and is processed by the user equipment as the DRX-active instruction when comprising an identification of the unlicensed cell. - View Dependent Claims (12)
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13. A user equipment for operating a Discontinuous Reception, DRX, function, wherein the user equipment is configured with at least one licensed cell and at least one unlicensed cell and operates the DRX function, the user equipment comprising:
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a processor that controls the user equipment to be in DRX Active Time for the unlicensed cell for a plurality of subframes in which the unlicensed cell is activated such that the processor of the user equipment continuously monitors a downlink control channel associated with the unlicensed cell for all of the subframes in which the unlicensed cell is activated, in response to receiving a DRX-active instruction to be in DRX Active Time at least on the unlicensed cell until receiving the next downlink control information related to a downlink data transmission to be received via the unlicensed cell, wherein the DRX-active instruction is included in a control element of a Medium Access Control, MAC, protocol, wherein the MAC control element comprises a predetermined identification value indicating that the MAC control element is the DRX-active instruction, and wherein the DRX-active instruction is included in downlink control information, DCI, transmitted on the downlink control channel, and wherein the DCI is of the 3rd Generation Partnership Project, 3GPP, DCI Format 1A and comprises information such that the DCI; is processed by the user equipment as an instruction to perform a random access procedure on a licensed cell when comprising an identification of this licensed cell, and is processed by the user equipment as the DRX-active instruction when comprising an identification of the unlicensed cell.
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14. A radio base station for controlling a Discontinuous Reception, DRX, function at a user equipment, wherein the user equipment is configured with at least one licensed cell and at least one unlicensed cell and operates the DRX function, the radio base station comprising:
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a transmitter that transmits, to the user equipment, a DRX-active instruction for the user equipment to be in DRX Active Time at least on the unlicensed cell until receiving the next downlink control information related to a downlink data transmission to be received via the unlicensed cell, wherein the DRX-active instruction is included in a control element of a Medium Access Control, MAC, protocol, wherein the MAC control element comprises a predetermined identification value indicating that the MAC control element is the DRX-active instruction, wherein the DRX-active instruction is included in downlink control information, DCI, transmitted on a downlink control channel, and wherein the DCI is of the 3rd Generation Partnership Project, 3GPP, DCI Format 1A and comprises information such that the DCI; is processed by the user equipment as an instruction to perform a random access procedure on a licensed cell when comprising an identification of this licensed cell, and is processed by the user equipment as the DRX-active instruction when comprising an identification of the unlicensed cell.
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Specification