Simplified fdd-tdd carrier aggregation
AssigneeQUALCOMM Incorporated
InventorsWanshi Chen, Peter Gaal, Jelena Damnjanovic
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Abstract
Methods, systems, and devices are described for multi-carrier communications involving one or more TDD component carriers and one or more FDD component carriers in a wireless communications network. Some described embodiments are directed to systems and methods for multi-carrier communications for a half-duplex device. The described methods, systems, and devices may simplify multi-carrier communications, such as the determination of hybrid automatic repeat request (HARQ) and/or scheduling timing with FDD+TDD carrier aggregation.
Claims30
A method of multi-carrier communication for a device utilizing at least one time division duplex (TDD) component carrier and at least one frequency division duplex (FDD) component carrier in a wireless communications network, the method comprising:
- determining a first reference subframe configuration for a downlink of the at least one FDD component carrier;
- determining a second reference subframe configuration for an uplink of the at least one FDD component carrier;
- and
- communicating on the at least one FDD component carrier according to the determined first and second reference subframe configurations in respective downlink and uplink directions, wherein communicating on the at least one FDD component carrier comprises determining at least one of a hybrid automatic repeat-request (HARQ) timing or a scheduling timing based on the first reference subframe configuration or the second reference subframe configuration.
An apparatus for multi-carrier communication for a device utilizing at least one time division duplex (TDD) component carrier and at least one frequency division duplex (FDD) component carrier in a wireless communications network, the apparatus comprising:
- means for determining a first reference subframe configuration for a downlink of the at least one FDD component carrier;
- means for determining a second reference subframe configuration for an uplink of the at least one FDD component carrier;
- and
- means for communicating on the at least one FDD component carrier according to the determined first and second reference subframe configurations in respective downlink and uplink directions, wherein communicating on the at least one FDD component carrier comprises determining at least one of a hybrid automatic repeat-request (HARQ) timing or a scheduling timing based on the first reference subframe configuration or the second reference subframe configuration.
An apparatus for multi-carrier communication for a device utilizing at least one time division duplex (TDD) component carrier and at least one frequency division duplex (FDD) component carrier in a wireless communications network, the apparatus comprising:
- a processor;
- and
- a memory coupled to the processor, wherein the processor is configured to:
- determine a first reference subframe configuration for a downlink of the at least one FDD component carrier,
- determine a second reference subframe configuration for an uplink of the at least one FDD component carrier, and
- communicate on the at least one FDD component carrier according to the determined first and second reference subframe configurations in respective downlink and uplink directions, wherein communicating on the at least one FDD component carrier comprises determining at least one of a hybrid automatic repeat-request (HARQ) timing or a scheduling timing based on the first reference subframe configuration or the second reference subframe configuration.
A non-transitory computer-readable medium for storing instructions executable by a processor, comprising:
- instructions to determine a first reference subframe configuration for a downlink of at least one FDD component carrier;
- instructions to determine a second reference subframe configuration for an uplink of the at least one FDD component carrier;
- and
- instructions to communicate on the at least one FDD component carrier according to the determined first and second reference subframe configurations in respective downlink and uplink directions, wherein communicating on the at least one FDD component carrier comprises determining at least one of a hybrid automatic repeat-request (HARQ) timing or a scheduling timing based on the first reference subframe configuration or the second reference subframe configuration.
Dependencies are inferred from the claim text.