Dynamic Orthogonal Cover Code Matrix Sizing for PUCCH Repetitions
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently managing different orthogonal cover code matrix sizes across physical uplink control channel repetitions, leading to inefficiencies in resource utilization and potential errors in transmission.
Innovation Solution
The method involves generating and transmitting physical uplink control channel (PUCCH) repetitions of different lengths using vectors of orthogonal cover code (OCC) matrices that differ in size across multiple repetitions, allowing for more flexible scheduling and resource allocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a single orthogonal cover code matrix size is used across all PUCCH repetitions, then system simplicity is maintained, but resource utilization efficiency deteriorates when PUCCH repetition lengths vary
Solution Approach 1:
The patent implements dynamic OCC matrix size selection where the system adapts the OCC matrix dimensions based on the actual PUCCH repetition length. Instead of using a fixed matrix size, the system dynamically configures appropriate OCC matrix sizes (e.g., 4x4, 8x8, or other dimensions) to match each PUCCH repetition's specific length requirement, thereby optimizing resource utilization while maintaining manageable system complexity through structured adaptation rules
Solution Approach 2:
The patent changes the parameters of the OCC matrices by allowing different matrix sizes across PUCCH repetitions. The system modifies the OCC matrix dimensions as a variable parameter rather than keeping it fixed, enabling the matching of OCC matrix sizes to different PUCCH repetition lengths. This parameter change approach resolves the contradiction by allowing flexibility in resource utilization without requiring complete system redesign
2Reliability
If OCC matrix sizes are matched to PUCCH repetition lengths, then transmission accuracy is improved, but processing complexity increases
Solution Approach 1:
The patent applies local quality by assigning different OCC matrix sizes specifically to different PUCCH repetitions based on their individual length requirements. Each PUCCH repetition receives an OCC matrix locally optimized for its specific characteristics rather than applying a uniform solution globally. This localized optimization improves transmission accuracy for each repetition while keeping the overall processing complexity manageable through systematic local adaptations
Solution Approach 2:
The system dynamically adjusts OCC matrix sizes to match PUCCH repetition lengths, creating a dynamic adaptation mechanism that improves transmission accuracy. The processing complexity is managed through structured dynamic rules that determine appropriate matrix sizes based on repetition length, avoiding arbitrary complexity increases
3Productivity
If different OCC matrix sizes are used across PUCCH repetitions, then resource efficiency is enhanced, but system configuration complexity increases
Solution Approach 1:
The patent employs parameter changes by allowing OCC matrix size to vary as a configurable parameter across different PUCCH repetitions. The system defines rules and procedures for selecting appropriate OCC matrix sizes based on PUCCH repetition lengths, transforming the rigid fixed-size configuration into a flexible parameter-driven configuration system. This enhances resource efficiency while managing configuration complexity through systematic parameter selection criteria
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may generate a plurality of physical uplink control channel (PUCCH) repetitions of different lengths using vectors of orthogonal cover code (OCC) matrices that differ in size across two or more of the plurality of PUCCH repetitions. The UE may transmit the plurality of PUCCH repetitions. Numerous other aspects are provided.