Configured Grant UCI Feedback for Unused Resources
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Solution Overview
Problem
Current mobile communication networks face challenges in efficiently managing and optimizing communication protocols across diverse wireless devices and base stations, particularly in handling multiple technologies and releases, which affects traffic load management and packet transmission efficiency.
Innovation Solution
The implementation of a flexible and configurable architecture for New Radio (NR) user plane and control plane protocol stacks, allowing for dynamic bandwidth adaptation, carrier aggregation, and advanced random access procedures, which enables optimized communication across a mix of wireless devices and base stations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If configured grant resources are allocated for uplink transmission, then device productivity is improved, but network resource waste increases when data is not available for transmission
Solution Approach 1:
The patent implements a feedback mechanism where the wireless device monitors configured grant resources and sends an indication to the base station when data becomes available or when resources remain unused. This feedback allows the network to dynamically adjust resource allocation, preventing waste while maintaining high transmission efficiency when data is present.
Solution Approach 2:
The wireless device autonomously monitors its own data buffer status and determines when to transmit indications about configured grant resource usage. This self-service approach eliminates the need for continuous network polling, reducing signaling overhead while ensuring efficient resource utilization.
2Productivity
If multiple configured grant resources are allocated, then device productivity improves, but determining data availability becomes more complex
Solution Approach 1:
The patent divides the monitoring process into separate evaluation stages for each configured grant resource. The device independently assesses data availability conditions for each resource type (e.g., grant Type 1, grant Type 2) and applies specific criteria to each, simplifying the overall decision-making process despite multiple resources being configured.
Solution Approach 2:
The patent establishes predetermined data availability conditions and transmission triggers before actual data transmission occurs. These pre-configured rules enable the device to quickly determine whether to send indications without complex real-time analysis, reducing processing complexity while maintaining accurate resource management.
Data Source
AI summary
A wireless device receives at least one configured grant (CG) configuration indicating: one or more first parameters indicating a plurality of CGs, and a configuration parameter enabling transmission of uplink control information (UCI) for unused transmission occasions associated with the plurality of CGs. The wireless device determines an amount of data available for transmission via one or more first CGs of the plurality of CGs. The wireless device transmits, based on the configuration parameter and the amount of data, the UCI via a second CG of the plurality of CGs. The UCI indicates whether uplink resources of the one or more first CGs are going to be used or unused for uplink transmissions.