Power saving mode for multi-carrier transmission
First Claim
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1. A method for multi-carrier data transmission, wherein carrier frequencies of each carrier of a set of carriers differ from one carrier to another, comprising:
- using, in a first transmission mode, all carriers of the set of carriers for payload data transmission, andin a second transmission mode, refraining from transmitting payload data on at least one of the carriers of the set of carriers and reducing transmission power of the at least one of the carriers,using, in the first transmission mode, a further set of carriers different from the set of carriers and having different carrier frequencies for transmission of overhead data, andin the second transmission mode transmitting a load data via the further set of carriers which, in the first transmission mode, would be transmitted via the set of carriers.
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Abstract
Methods and communication devices are described where in a first transmission mode a set of carriers having different carrier frequencies is used for payload data transmission, and in a second transmission mode at least some of the carriers of the set of carriers are refrained from being used, and the transmission power is reduced.
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Citations
18 Claims
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1. A method for multi-carrier data transmission, wherein carrier frequencies of each carrier of a set of carriers differ from one carrier to another, comprising:
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using, in a first transmission mode, all carriers of the set of carriers for payload data transmission, and in a second transmission mode, refraining from transmitting payload data on at least one of the carriers of the set of carriers and reducing transmission power of the at least one of the carriers, using, in the first transmission mode, a further set of carriers different from the set of carriers and having different carrier frequencies for transmission of overhead data, and in the second transmission mode transmitting a load data via the further set of carriers which, in the first transmission mode, would be transmitted via the set of carriers. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A communication device for multi-carrier data transmission, comprising communication circuitry which is configured to use,
in a first transmission mode, a first set of carriers for payload data transmission, and a further set of carriers different from the first set of carriers for overhead data transmission, and, in a second transmission mode, a second set of carriers for payload data transmission, wherein the second set of carriers is a subset of the first set of carriers that does not comprise at least one of the carriers of the first set of carriers, wherein, in the second transmission mode, transmission power of the at least one carrier of the first set of carriers that is not comprised in the second set of carriers is reduced with respect to transmission power in the first transmission mode, and wherein, in the second transmission mode, payload data is transmitted via the further set of carriers which, in the first transmission mode, would be transmitted via the first set of carriers.
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14. A method, comprising:
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allocating, by a communication device, a set of carriers for use for communication of data; communicating data, in a first transmission mode, on all carriers associated with the set of carriers; and communicating data, in a second transmission mode, on less than all carriers associated with the set of carriers, providing a retransmission layer, providing a TPS-TC layer performing a rate decoupling above the retransmission layer the retransmission layer generating data transfer units, identifying data transfer units as idle if they do not contain data from layers above the TPS-TC layer, and switching from the first transmission mode to the second transmission mode based on identified idle data transfer units. - View Dependent Claims (15, 16, 17, 18)
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Specification