DCI-Based Beam Reporting for Efficient CSI Transmission
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Solution Overview
Problem
Existing wireless communication systems face challenges in optimizing beam reporting and channel state information (CSI) transmission, leading to inefficiencies in resource usage and coordination between wireless devices and base stations.
Innovation Solution
Implementing a system where wireless devices transmit beam reports and CSI reports based on additional information included in downlink control information (DCI), determining whether to transmit these reports to enhance the likelihood of successful transmission and improve resource usage efficiency and coordination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If beam reports and CSI reports are transmitted periodically or aperiodically based on channel quality measurements, then the wireless device can provide channel state information to the base station, but the resource usage efficiency decreases and coordination between device and base station is insufficient
Solution Approach 1:
The patent applies dynamics by making the report transmission decision flexible and adaptive. The wireless device determines whether to transmit a report based on additional information in DCI and channel quality measurements, rather than following a fixed periodic or aperiodic schedule. This dynamic decision-making allows the system to optimize resource usage while ensuring reliable report transmission when needed.
Solution Approach 2:
The patent implements feedback mechanisms where the base station sends DCI with additional information to the wireless device, and the device uses this feedback to determine transmission decisions. The device also provides feedback through beam reports and CSI reports based on channel quality measurements, creating a closed-loop coordination system that improves both reliability and resource efficiency.
2Productivity
If the wireless device transmits reports based on additional information in DCI, then resource usage efficiency improves, but the complexity of coordination between device and base station increases
Solution Approach 1:
The patent applies universality by making the DCI structure multi-functional. The additional information field in DCI serves multiple purposes: it provides beam indication, triggers report transmission decisions, and enables coordination between device and base station. This unified approach reduces overall system complexity while improving resource usage efficiency.
Solution Approach 2:
The patent implements preliminary action by having the base station include additional information in DCI before the wireless device needs to make transmission decisions. This advance provision of information allows the device to prepare appropriate responses and beam configurations in advance, reducing real-time coordination complexity while maintaining high resource efficiency.
Data Source
AI summary
A wireless device may communicate with a base station. CSI reporting may be initiated by a wireless device. Uplink resource allocation for the CSI reporting may be provided by a base station via downlink control information (DCI). Information in the DCI may indicate whether the wireless device is to transmit a CSI report.