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US 12,597,970 B2Granted
Hybrid multiple-input multiple-output (MIMO) precoder codebook based on discrete Fourier transform (DFT) and non-DFT precoders
AssigneeQUALCOMM Incorporated
InventorsYi Huang, Yu Zhang, Peter Gaal
Life of this patent
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Abstract
A user equipment (UE) precodes data for transmission by the wireless device based on a hybrid codebook comprising a first set of one or more discrete Fourier transform (DFT) precoders and a second set of one or more non-DFT precoders. The UE also transmits a signal based on the precoded data.
Claims30
An apparatus for wireless communication at a wireless device, comprising:
- memory;
- and
- at least one processor coupled to the memory and, based at least in part on information stored in the memory, the at least one processor is configured to cause the wireless device to:
- precode data for transmission by the wireless device based on a hybrid codebook comprising a first set of one or more discrete Fourier transform (DFT) precoders and a second set of one or more non-DFT precoders, wherein the second set of one or more non-DFT precoders is included in the hybrid codebook based on at least one of:
- a distance relative to the first set of one or more DFT precoders, or
- a frequency of use of the second set of one or more non-DFT precoders among a plurality of non-DFT precoders;
- and
- transmit a signal based on the precoded data.
5 more elements
An apparatus for wireless communication at a network node, comprising:
- memory;
- and
- at least one processor coupled to the memory and, based at least in part on information stored in the memory, the at least one processor is configured to:
- provide a subset of precoders for a hybrid codebook comprising at least one DFT precoder and at least one non-DFT precoder, wherein the at least one non-DFT precoder is included in the hybrid codebook based on at least one of:
- a distance relative to the at least one DFT precoder, or
- a frequency of use of the at least one non-DFT precoder among a plurality of non-DFT precoders;
- and
- communicate with a user equipment (UE) with precoding based on the hybrid codebook.
5 more elements
A method of wireless communication at a wireless device, comprising:
- precoding data for transmission by the wireless device based on a hybrid codebook comprising a first set of one or more discrete Fourier transform (DFT) precoders and a second set of one or more non-DFT precoders, wherein the second set of one or more non-DFT precoders is included in the hybrid codebook based on at least one of:
- a distance relative to the first set of one or more DFT precoders, or
- a frequency of use of the second set of one or more non-DFT precoders among a plurality of non-DFT precoders;
- and
- transmitting a signal based on the precoded data.
2 more elements
A method of wireless communication at a network node, comprising:
- providing a subset of precoders for a hybrid codebook comprising at least one DFT precoder and at least one non-DFT precoder, wherein the at least one non-DFT precoder is included in the hybrid codebook based on at least one of:
- a distance relative to the at least one DFT precoder, or
- a frequency of use of the at least one non-DFT precoder among a plurality of non-DFT precoders;
- and
- communicating with a user equipment (UE) with precoding based on the hybrid codebook.
2 more elements
Dependencies are inferred from the claim text.