Uplink Logical Channel Allocation for Reduced Resource Waste
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Solution Overview
Problem
The existing method of logical channel prioritization (LCP) in terminal devices leads to inefficient use of uplink transmission resources due to padding when there is insufficient data for transmission, resulting in resource wastage.
Innovation Solution
A data transmission method that determines a first logical channel based on attribute information and resource mapping restrictions, and allocates resources to additional logical channels when there is a remaining resource, including sharing with associated or pre-configured channels when allowed, to optimize resource utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the terminal device uses padding bits to fill remaining uplink transmission resources when there is insufficient data on the selected logical channel, then the uplink transmission resource can be fully utilized, but resource waste increases
Solution Approach 1:
The patent implements dynamic logical channel selection and resource allocation by introducing a second logical channel selection process that activates when remaining resources exceed a threshold. The system dynamically adjusts resource allocation between first and second logical channels based on data availability and resource conditions, transforming the static single-channel allocation into a flexible multi-channel system that adapts to varying data conditions.
Solution Approach 2:
The patent changes the allocation parameters by introducing a resource threshold parameter that triggers different allocation modes. When remaining resources are below the threshold, resources are allocated to the first logical channel; when above the threshold, resources are allocated to the second logical channel. This parameter-based decision mechanism optimizes resource utilization by matching allocation strategies to specific resource conditions.
2Device complexity
If the terminal device allocates uplink transmission resource to only one logical channel that adapts to attribute information, then the resource allocation is simple and clear, but resource utilization efficiency decreases
Solution Approach 1:
The patent segments the resource allocation process into two distinct stages: first, allocating resources to the first logical channel based on attribute information matching; second, when remaining resources exceed a threshold, allocating additional resources to the second logical channel. This segmentation allows the system to maintain clear allocation rules while enabling multi-channel resource utilization, effectively resolving the contradiction between allocation simplicity and resource efficiency.
Solution Approach 2:
The patent introduces a resource threshold as an intermediary parameter that mediates between single-channel and multi-channel allocation modes. This threshold acts as a decision boundary that triggers the transition from conservative single-channel allocation to aggressive multi-channel allocation, providing a clear and manageable mechanism for optimizing resource utilization without excessive complexity.
Data Source
AI summary
The present disclosure relates to data transmission methods and apparatuses. One example data transmission method includes determining a first logical channel based on attribute information of an uplink transmission resource and resource mapping restriction information of a logical channel, allocating, from the uplink transmission resource, a transmission resource to at least one logical channel in the first logical channel, determining a second logical channel when there is a remaining resource in the uplink transmission resource, allocating the remaining resource to at least one logical channel in the second logical channel, and transmitting, on the uplink transmission resource, data on the at least one logical channel in the first logical channel and data on the at least one logical channel in the second logical channel.