Semi-Persistent CSI Skip Indicator for Wireless Devices

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Solution Overview

Problem

In wireless communications, wireless devices face difficulties in determining the reasons for message non-receipt, leading to inefficiencies in signaling and spectral usage, particularly with semi-persistent CSI reporting.

Innovation Solution

Implementing a skip indicator mechanism for semi-persistent CSI reporting, allowing wireless devices to conserve transmission power by skipping CSI report transmissions based on configuration parameters sent by the base station, using RRC, DCI, or MAC signaling.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If semi-persistent CSI reporting is implemented, then channel state information can be reported periodically, but transmission power is wasted when measurements are invalid or insufficient

Engineering Contradiction:

ImproveCSI reporting reliabilityVSAvoidtransmission power

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The patent implements a skip indicator mechanism that allows the wireless device to skip transmitting CSI reports when measurements are invalid or insufficient. The base station configures the wireless device with a skip indicator that, when set, instructs the device to skip the scheduled CSI report transmission, thereby avoiding waste of transmission power on unreliable measurements while maintaining the semi-persistent reporting framework

Inventive Principle:

Principle #21Skipping (Rushing through)

2Productivity

If CSI reports are transmitted frequently, then spectral efficiency improves, but signaling overhead increases

Engineering Contradiction:

Improvespectral efficiencyVSAvoidsignaling overhead

Core Design Contradiction:

ProductivityVSLoss of information

Solution Approach 1:

The patent extracts the skip indicator configuration from the main CSI reporting configuration, allowing independent control of reporting behavior. By separating the skip indicator mechanism from the core CSI reporting process, the system can selectively suppress unnecessary reports without affecting the overall reporting framework, thus reducing signaling overhead while preserving spectral efficiency for essential reports

Inventive Principle:

Principle #2Taking out (Extraction)

Data Source

PatentUS11831377B2Methods and systems for information reporting

Publication Date: 2023.11.28 COMCAST CABLE COMM LLC

AI summary

Systems, apparatuses, and method are described for wireless communications. A base station may transmit, and a wireless device may receive, one or more messages that may comprise configuration parameters of semi persistent (SP) channel state information (CSI) reporting and an SP CSI skip indicator indicating that skipping SP CSI report transmission is allowed. The wireless device may skip transmitting an SP CSI report based on the CSI skip indicator.