PUSCH Resource Parameter Selection for UCI Transmission
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Solution Overview
Problem
In 5G wireless communication systems, the transmission of Uplink Control Information (UCI) over the Physical Uplink Shared Channel (PUSCH) can result in CSI feedback being discarded due to high code rates, leading to performance losses when UCI information is excessive, causing parts of the CSI to be discarded.
Innovation Solution
A method and device for dynamically adjusting PUSCH resources by selecting appropriate resource parameters to ensure UCI is not discarded, involving the determination of Resource Elements (REs) required for UCI transmission and configuring PUSCH resource parameters to prevent CSI part2 from being discarded, thereby maintaining effective CSI feedback.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If UCI is transmitted over PUSCH when a large amount of UCI information needs to be carried, then the transmission capacity is improved, but part of CSI is discarded resulting in performance loss
Solution Approach 1:
The patent applies dynamics by enabling the PUSCH resource parameters to be dynamically adjusted based on the UCI information amount. The system transitions from static resource allocation to dynamic resource parameter selection, where the network device selects appropriate resource parameters from multiple groups according to the actual UCI transmission needs, preventing CSI discarding while maintaining transmission capacity.
Solution Approach 2:
The patent implements parameter changes by modifying PUSCH resource parameters (such as beta offsets, resource element allocations) to adapt to different UCI information volumes. By changing these parameters dynamically, the system ensures that sufficient resources are allocated for UCI transmission without causing CSI feedback to be discarded, thus resolving the contradiction between transmission capacity and information loss.
2Reliability
If PUSCH resource parameters are increased to accommodate more UCI, then the transmission reliability is improved, but the resource allocation complexity increases
Solution Approach 1:
The patent applies preliminary action by pre-configuring multiple groups of PUSCH resource parameters with different characteristics. When UCI transmission is needed, the network device selects from these pre-prepared parameter groups based on the actual information amount, avoiding the need for complex real-time resource allocation calculations while ensuring reliable transmission.
Solution Approach 2:
The system dynamically selects from pre-configured parameter groups based on actual UCI volume, combining the benefits of pre-prepared reliable configurations with adaptive selection. This dynamic approach maintains transmission reliability while simplifying the allocation process compared to real-time optimization.
Data Source
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AI summary
Embodiments of the present disclosure disclose a method for dynamically adjusting a PUSCH resource, a device, and an apparatus. The method comprises: determining a scenario for transmitting uplink control information (UCI) via a PUSCH, wherein the scenario comprises at least one of the following: transmitting service data and the UCI via the PUSCH, and transmitting only the UCI via the PUSCH; according to the scenario, preferentially selecting, from multiple sets of PUSCH resource parameters, a set of PUSCH resource parameters in which the UCI will not be dropped, and generating scheduling information; and transmitting the scheduling information to user equipment (UE).