Logical Channel Prioritization Based on HARQ Feedback Configuration
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently prioritizing logical channels for data transmission based on Hybrid Automatic Repeat Request (HARQ) feedback configuration, leading to suboptimal resource allocation and performance.
Innovation Solution
A method and apparatus for selecting logical channels for logical channel prioritization by distinguishing between channels configured with HARQ feedback and those without, allowing for appropriate transmission strategies based on the HARQ feedback configuration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If logical channels are prioritized without considering HARQ feedback configuration, then the prioritization process is simple, but resource allocation becomes suboptimal
Solution Approach 1:
The patent applies local quality by differentiating the prioritization treatment based on the HARQ feedback configuration of each logical channel. Channels configured with HARQ feedback are handled differently from those without, allowing optimized resource allocation for each channel type according to its specific characteristics and requirements.
2Reliability
If HARQ feedback is enabled for all logical channels, then reliability is improved, but overhead and complexity increase
Solution Approach 1:
The patent implements local quality by selectively enabling HARQ feedback based on the specific characteristics and requirements of each logical channel. Not all channels require HARQ feedback, so the system enables it only where necessary to maintain reliability, thereby avoiding unnecessary overhead and complexity in channels where it is not needed.
3Adaptability or versatility
If logical channels with and without HARQ feedback are mixed in prioritization, then flexibility is improved, but selection complexity increases
Solution Approach 1:
The patent applies segmentation by dividing logical channels into distinct groups based on their HARQ feedback configuration status. This segmentation allows the prioritization process to handle different channel types separately with appropriate selection criteria, maintaining flexibility in channel selection while reducing the complexity of the overall selection process through structured categorization.
Data Source
AI summary
A method and apparatus for logical channel prioritization (LCP) based on hybrid automatic repeat request (HARQ) feedback in a wireless communication system is provided. A wireless device selects a first logical channel with a highest priority among multiple logical channels having data available for transmission. When the first logical channel is configured with a hybrid automatic repeat request (HARQ) feedback, the wireless device selects one or more second logical channels configured with the HARQ feedback among the multiple logical channels. When the first logical channel is not configured with HARQ feedback, the wireless device selects one or more second logical channels not configured with the HARQ feedback among the multiple logical channels. The wireless device creates a data unit based on the first logical channel and the one or more second logical channels.