Wireless communication system enhancement link data transfer method and apparatus thereof
AssigneeLG Electronics Inc.
InventorsHaewook Park, Kijun Kim, Jonghyun Park, Jiwon Kang, Hyungtae Kim
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Abstract
A method for transmitting Physical Uplink Shared Channel (PUSCH) performed by a User Equipment (UE) in a wireless communication system may include receive downlink control information (DCI) for uplink (UL) transmission scheduling; and performing codebook based PUSCH transmission based on precoding information included in the DCI.
Claims16
A method for transmitting a codebook-based Physical Uplink Shared Channel (PUSCH) performed by a User Equipment (UE) in a wireless communication system, comprising:
- receiving restriction information of precoding matrix usable in the PUSCH transmission in the codebook;
- receiving downlink control information (DCI) for uplink (UL) transmission scheduling;
- and
- performing codebook based PUSCH transmission based on precoding information included in the DCI and the restriction information,
- when the PUSCH is transmitted using four antenna ports, the codebook includes:
- a first group including non-coherent precoding matrixes for selecting only one port for each layer,
- a second group including partial-coherent precoding matrixes for selection two ports in at least one layer, and
- a third group including full-coherence precoding matrixes for selection all ports for each of the layers.
(canceled)
A User Equipment (UE) for transmitting a codebook-based Physical Uplink Shared Channel (PUSCH) in a wireless communication system, comprising:
- a radio frequency (RF) unit for transmitting and receiving a radio signal;
- and
- a processor for controlling the RF unit,
- wherein the processor is configured to:
- receive restriction information of precoding matrix usable in the PUSCH transmission in the codebook,
- receive downlink control information (DCI) for uplink (UL) transmission scheduling;
- and
- perform codebook based PUSCH transmission based on precoding information included in the DCI and the restriction information,
- when the PUSCH is transmitted using four antenna ports, the codebook includes:
- a first group including non-coherent precoding matrixes for selecting only one port for each layer,
- a second group including partial-coherent precoding matrixes for selection two ports in at least one layer, and
- a third group including full-coherence precoding matrixes for selection all ports for each of the layers.
Dependencies are inferred from the claim text.