UE-Initiated CSI Request Retransmission for Reliable Uplink Scheduling
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Solution Overview
Problem
Current 3GPP communication systems face challenges in efficiently handling UE-initiated channel state information (CSI) reporting, particularly in scenarios requiring ultra-low latencies and broad bandwidths, due to limitations in existing UE-initiated transmission request mechanisms.
Innovation Solution
The implementation of a user equipment (UE) apparatus with a transceiver and circuitry that determines the success of transmission requests for CSI reporting and decides on retransmission, enhancing the UE-initiated CSI reporting procedure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If UE-initiated transmission requests are used for CSI reporting, then reporting efficiency is improved, but transmission reliability deteriorates due to lack of acknowledgment mechanisms
Solution Approach 1:
The patent introduces an acknowledgment mechanism where the network node sends feedback to the UE regarding the reception status of CSI reporting transmission requests. This feedback loop enables the UE to determine whether its transmission requests were successfully received and to perform retransmissions if necessary, thereby resolving the reliability issue while maintaining the efficiency benefits of UE-initiated reporting.
2Reliability
If retransmission mechanisms are added to improve reliability, then transmission reliability is improved, but system complexity increases
Solution Approach 1:
The patent implements a self-service retransmission mechanism where the UE autonomously determines whether retransmission is needed based on received acknowledgments from the network node. The UE independently manages its own transmission reliability without requiring complex external control systems, thereby improving reliability while minimizing the increase in overall system complexity.
3Loss of time
If UE-initiated CSI reporting is implemented, then reporting timeliness is improved, but resource management complexity increases
Solution Approach 1:
The patent implements dynamic resource allocation where the network node can flexibly grant uplink resources to UEs based on their reporting needs and current system conditions. This dynamic approach allows the system to maintain timely CSI reporting while adapting resource management to varying loads and conditions, preventing excessive complexity from rigid resource allocation schemes.
Data Source
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AI summary
The disclosure relates to a user equipment, a network node device, and respective methods for a user equipment and a network node. More specifically, the user equipment comprises a transceiver and a circuitry. The transceiver, in operation, transmits a transmission request for reporting an UE-initiated channel state information, CSI, report to a network node. The circuitry, in operation, determines, in a first determination, whether the transmission request is successful or not, determines, in a second determination, based on the first determination, whether to retransmit the transmission request.