17806068. PMI-BASED DATA BEAM NULLING WITH A CSI REPORT simplified abstract (Samsung Electronics Co., Ltd.)
Contents
PMI-BASED DATA BEAM NULLING WITH A CSI REPORT
Organization Name
Inventor(s)
Ahmed Atef Ibrahim Ibrahim of Plano TX (US)
PMI-BASED DATA BEAM NULLING WITH A CSI REPORT - A simplified explanation of the abstract
This abstract first appeared for US patent application 17806068 titled 'PMI-BASED DATA BEAM NULLING WITH A CSI REPORT
Simplified Explanation
The patent application describes apparatuses and methods for using precoding matrix indicator (PMI)-based data beam nulling with a channel state information (CSI) report in wireless communication systems.
- The apparatus includes a transceiver and a processor.
- The processor identifies restricted PMI beams in a nulling direction for supported ranks.
- The apparatus receives a CSI report from a user equipment (UE), which includes information about the rank, PMI, and channel quality indicator (CQI) feedback.
- The processor determines whether the reported PMI is restricted.
- If the reported PMI is restricted, the processor selects an alternative PMI from a number of unrestricted PMIs for the reported rank.
- If a reduced transmit power is configured, the processor boosts the reported CQI.
- The processor selects a modulation coding scheme (MCS) and generates a precoder for a data beam based on the CSI report, the alternative PMI, and the boosted CQI.
Potential Applications
- Wireless communication systems
- Cellular networks
- 5G networks
Problems Solved
- Efficient utilization of precoding matrix indicator (PMI)-based data beam nulling
- Handling restricted PMI beams in a nulling direction
- Improving channel state information (CSI) reporting and feedback
Benefits
- Improved wireless communication performance
- Enhanced data transmission efficiency
- Better utilization of available resources
- Increased system capacity and throughput
Original Abstract Submitted
Apparatuses and methods for precoding matrix indicator (PMI)-based data beam nulling with a channel state information (CSI) report. An apparatus includes a transceiver configured to communicate via a wired or wireless communication medium and a processor coupled to the transceiver. The processor is configured to identify restricted PMI beams in a nulling direction for supported ranks; receive, via the transceiver from a user equipment (UE), a CSI report including a rank, a PMI, and channel quality indicator (CQI) feedback; and determine whether the reported PMI is restricted. The processor is further configured to select an alternative PMI among a number of unrestricted PMIs for the reported rank; boost a reported CQI if a reduced transmit power is configured; and select a modulation coding scheme (MCS) and generate a precoder for a data beam based on at least one of: the CSI report, the alternative PMI, and the boosted CQI.