US Patent Application 18093612. METHOD AND APPARATUS FOR UPLINK SIGNAL TRANSMISSION BASED ON CODEBOOK IN A WIRELESS COMMUNICATION SYSTEM simplified abstract
METHOD AND APPARATUS FOR UPLINK SIGNAL TRANSMISSION BASED ON CODEBOOK IN A WIRELESS COMMUNICATION SYSTEM
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METHOD AND APPARATUS FOR UPLINK SIGNAL TRANSMISSION BASED ON CODEBOOK IN A WIRELESS COMMUNICATION SYSTEM - A simplified explanation of the abstract
- This abstract for appeared for US patent application number 18093612 Titled 'METHOD AND APPARATUS FOR UPLINK SIGNAL TRANSMISSION BASED ON CODEBOOK IN A WIRELESS COMMUNICATION SYSTEM'
Simplified Explanation
This abstract describes a method used by a User Equipment (UE) in a wireless communication system to transmit an uplink signal using a codebook. The UE first transmits information about its capabilities, specifically regarding the phase values applied to its antenna ports for uplink signal transmission. It then receives configuration information that determines a subset of the codebook related to the uplink signal transmission based on its capabilities. The UE also receives Downlink Control Information (DCI) that helps determine the precoding matrix to be applied to the uplink signal transmission. Based on the DCI, the UE selects a precoding matrix from the codebook subset determined by the configuration information. Finally, the UE transmits the uplink signal using the selected precoding matrix. The codebook subset includes specific precoding matrices that apply different phase values to the antenna ports of some or all of the antennas, while maintaining differences between the phase values.
Original Abstract Submitted
A method of a UE transmitting a codebook based uplink signal in a wireless communication system, the method comprising: transmitting capability information about UE capability that maintains differences between phase values applied to antenna ports for uplink signal transmission; receiving configuration information for determining a codebook subset related to the uplink signal transmission based on the capability information; receiving DCI for determining a precoding matrix applied to the uplink signal transmission; determining a precoding matrix to be applied for the uplink signal transmission, based on the DCI, from the codebook subset determined based on the configuration information: and transmitting the uplink signal, based on the determined precoding matrix, wherein, based on that the differences between phase values are maintained at some antenna ports, the codebook subset includes at least one specific precoding matrix applying different phase values to the antenna ports included in some or all of some antennas.
