UCI Multiplexing on Multi-Slot PUSCH
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Solution Overview
Problem
There is no existing method for uplink control information (UCI) multiplexing on physical uplink shared channels (PUSCH) that transmit a transport block over multiple slots in the 5G new radio (NR) system.
Innovation Solution
A method and apparatus for UCI multiplexing on multi-slot PUSCH, involving determining resources required and an upper limit for UCI multiplexing, and transmitting or receiving UCI based on these determined resources, ensuring UCI transmission performance on multi-slot PUSCH.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If PUSCH transmits transport block over multiple slots, then transmission coverage and reliability are improved, but UCI multiplexing capability deteriorates (no existing method)
Solution Approach 1:
The patent segments the multi-slot PUSCH transmission into individual slot-level resources, determining UCI multiplexing resources separately for each slot where PUSCH and PUCCH overlap. This allows UCI multiplexing to be applied incrementally across multiple slots rather than requiring a complete new framework for multi-slot transmission.
Solution Approach 2:
The patent extends the existing single-slot UCI multiplexing mechanism to work universally across multiple slots. By defining resource determination methods that apply to each slot individually while maintaining consistency with single-slot operations, the solution provides multi-functionality that covers both single-slot and multi-slot scenarios.
2Reliability
If UCI multiplexing resources are increased to ensure reliable UCI transmission, then UCI transmission performance is improved, but PUSCH resources available for data transmission are reduced
Solution Approach 1:
The patent applies partial action by determining UCI multiplexing resources based on actual overlap conditions between PUSCH and PUCCH. Instead of allocating fixed resources for all slots, the system dynamically allocates resources only where needed (in slots with overlap), using partial resource allocation to achieve sufficient UCI transmission performance without excessive resource consumption.
Solution Approach 2:
The patent implements dynamic resource allocation where the amount of resources dedicated to UCI multiplexing varies according to the actual transmission scenario. The resource determination considers factors such as the number of overlapping slots, UCI payload size, and channel conditions, allowing the system to adapt resource allocation in real-time to balance UCI reliability and data transmission efficiency.
Data Source
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AI summary
Provided in the embodiments of the present disclosure are a UCI multiplexing method and apparatus, and a storage medium. With regard to a PUSCH carrying a multi-slot TB, when the PUSCH and one PUCCH overlap in at least one slot, the UCI multiplexing method comprises: determining resources needing to be occupied during the multiplexing of UCI on the PUSCH and an upper limit of the resources occupied during the multiplexing of the UCI on the PUSCH; on the basis of the resources needing to be occupied during the multiplexing of the UCI on the PUSCH and the upper limit of the resources occupied during the multiplexing of the UCI on the PUSCH, determining resources occupied during the actual transmission of the UCI; and on the basis of the resources occupied during the actual transmission of the UCI, transmitting the UCI on the PUSCH. By means of the embodiments of the present disclosure, the multiplexing of UCI on a PUSCH carrying a multi-slot TB is realized.