17806068. PMI-BASED DATA BEAM NULLING WITH A CSI REPORT simplified abstract (Samsung Electronics Co., Ltd.)

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PMI-BASED DATA BEAM NULLING WITH A CSI REPORT

Organization Name

Samsung Electronics Co., Ltd.

Inventor(s)

Shiyang Leng of Allen TX (US)

Hao Chen of Plano TX (US)

Ahmed Atef Ibrahim Ibrahim of Plano TX (US)

Namjeong Lee of Suwon-si (KR)

Sooyoung Hur of Suwon-si (KR)

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.

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