Peak to average power ratio reduction for supplementary uplink
AssigneeQUALCOMM Incorporated
InventorsHung Dinh LY, Saeid SAHRAEI, Gokul SRIDHARAN, Krishna Kiran MUKKAVILLI
Life of this patent
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Abstract
Aspects relate using peak reduction tones on a supplementary uplink to reduce peak to average power ratio on the supplementary uplink. For example, when a UE elects to switch from a primary carrier (e.g., a 5G NR carrier) to an SUL carrier (e.g., in a limited coverage scenario), the UE may use a defined set of PRTs to transmit data on the SUL carrier. In some examples, PRTs may be used on multiple carriers. For example, a first set of PRTs may be defined for an SUL carrier and a second set of PRTs may be defined for another carrier.
Claims30
A user equipment, comprising:
- a transceiver;
- a memory;
- and
- a processor coupled to the transceiver and the memory, wherein the processor and the memory are configured to:
- receive a first resource allocation for a supplementary uplink (SUL) carrier via the transceiver, the first resource allocation indicating a first set of transmission tones comprising a first set of data tones and a first set of peak reduction tones (PRTs), the first resource allocation further indicating a first set of data tone locations within a first bandwidth, the first resource allocation further indicating a first set of PRT locations within the first bandwidth, wherein the first set of PRT locations are arranged relative to the first set of data tone locations according to a first PRT sequence;
- and
- transmit a first data transmission on the SUL carrier via the transceiver, the first data transmission comprising a first waveform based at least in part on the first resource allocation.
A method for wireless communication at a user equipment, the method comprising:
- receiving a first resource allocation for a supplementary uplink (SUL) carrier, the first resource allocation indicating a first set of transmission tones comprising a first set of data tones and a first set of peak reduction tones (PRTs), the first resource allocation further indicating a first set of data tone locations within a first bandwidth, the first resource allocation further indicating a first set of PRT locations within the first bandwidth, wherein the first set of PRT locations are arranged relative to the first set of data tone locations according to a first PRT sequence;
- and
- transmitting a first data transmission on the SUL carrier, the first data transmission comprising a first waveform based at least in part on the first resource allocation.
A base station, comprising:
- a transceiver;
- a memory;
- and
- a processor coupled to the transceiver and the memory, wherein the processor and the memory are configured to:
- transmit a first resource allocation for a supplementary uplink (SUL) carrier, the first resource allocation indicating a first set of transmission tones comprising a first set of data tones and a first set of peak reduction tones (PRTs), the first resource allocation further indicating a first set of data tone locations within a first bandwidth, the first resource allocation further indicating a first set of PRT locations within the first bandwidth, wherein the first set of PRT locations are arranged relative to the first set of data tone locations according to a first PRT sequence;
- and
- receive a first data transmission on the SUL carrier via the transceiver after transmitting the first resource allocation, the first data transmission comprising a first waveform based at least in part on the first resource allocation.
A method for wireless communication at a base station, the method comprising:
- transmitting a first resource allocation for a supplementary uplink (SUL) carrier, the first resource allocation indicating a first set of transmission tones comprising a first set of data tones and a first set of peak reduction tones (PRTs), the first resource allocation further indicating a first set of data tone locations within a first bandwidth, the first resource allocation further indicating a first set of PRT locations within the first bandwidth, wherein the first set of PRT locations are arranged relative to the first set of data tone locations according to a first PRT sequence;
- and
- receiving a first data transmission on the SUL carrier after transmitting the first resource allocation, the first data transmission comprising a first waveform based at least in part on the first resource allocation.
Dependencies are inferred from the claim text.