Multi-Slot Uplink Rate Matching With Slot-Wise Bit Interleaving
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently managing multi-slot uplink shared channel transmissions, particularly in interleaving processes which become complex and less efficient when transmissions span multiple slots.
Innovation Solution
A method for wireless communication that involves receiving an indication of time domain resources for a multi-slot transmission occasion, selecting coded bits on a per slot basis, interleaving these bits to form interleaved encoded bit sequences, and transmitting these sequences. This approach allows for independent start locations for bit selection in each slot, simplifying the interleaving process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an interleaver process is used to vary the bits of a wireless transmission to improve performance, then transmission quality is improved, but the complexity of the interleaving process increases when transmission spans multiple slots
Solution Approach 1:
The patent divides the multi-slot transmission into separate interleaving operations for each slot. Instead of performing a single complex interleaving operation across all slots, the transmission is segmented into slot-specific interleaving processes, reducing overall complexity while maintaining reliability.
Solution Approach 2:
The patent applies different interleaving start locations for each slot based on local conditions. Each slot can have its own independent start location for bit selection, allowing the system to adapt to local channel conditions and reduce complexity by avoiding global coordination.
2Reliability
If coded bits are selected with dependent start locations across slots, then bit selection is coordinated, but resource consumption increases due to complex tracking requirements
Solution Approach 1:
Each slot independently determines its own start location for bit selection without requiring complex tracking or coordination with other slots. This self-service approach reduces resource consumption by eliminating the need for sophisticated inter-slot coordination mechanisms.
Solution Approach 2:
The patent changes the parameter of start location from a globally coordinated value to slot-independent values. By allowing each slot to have its own start location parameter, the system reduces complexity and resource consumption while maintaining reliable bit selection.
3Reliability
If interleaving is performed across multiple slots with complex bit selection, then transmission performance is improved, but the efficiency of UCI multiplexing decreases
Solution Approach 1:
The patent segments the interleaving process to occur independently within each slot rather than across multiple slots. This segmentation improves UCI multiplexing efficiency by allowing UCI to be multiplexed with data on a per-slot basis, reducing complexity and improving productivity.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive an indication of one or more sets of contiguous time domain resources for a multi-slot transmission occasion that spans at least multiple slots. The UE may select, for one or more codeblocks of a communication on the multi-slot transmission occasion, coded bits of a plurality of coded bits on a per slot basis for each of the multiple slots, wherein start locations for bit selection for each of the multiple slots are determined independently from one another. The UE may interleave the coded bits to form one or more interleaved encoded bit sequences of the one or more codeblocks. The UE may transmit the communication including the one or more interleaved encoded bit sequences. Numerous other aspects are described.