PDU Set Size Feedback for Accurate Wireless Resource Allocation
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Solution Overview
Problem
In wireless communications systems, there is a mismatch between the signaled PDU set size (PSSize) and the actual size observed by the user equipment (UE), leading to inefficient resource allocation and increased power consumption due to high signaling overhead and low flexibility.
Innovation Solution
The UE calculates an error ratio between the signaled and observed PSSize and transmits a correction parameter, such as a quantized error ratio, to the sender, enabling accurate resource allocation and reduced signaling overhead.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the signaled PDU set size is used for resource allocation, then resource allocation can be performed, but the allocation is inefficient due to mismatch with actual size
Solution Approach 1:
The patent implements a feedback mechanism where the UE measures the actual PDU set size and sends correction parameters back to the network entity. The network entity uses this feedback to adjust future resource allocations, creating a closed-loop system that continuously improves allocation accuracy based on actual measurements.
Solution Approach 2:
The patent changes the parameter representation by introducing correction parameters (such as correction ratios or error ratios) that adjust the signaled PDU set size to match the actual size. This parameter transformation allows the system to work with corrected size values that accurately reflect actual resource requirements.
2Measurement precision
If correction parameters are transmitted to correct PSSize mismatch, then resource allocation accuracy is improved, but signaling overhead increases
Solution Approach 1:
Instead of transmitting complete PDU set size information, the patent transmits only local correction parameters (such as correction ratios or error ratios) that represent the difference between signaled and actual sizes. This localized information approach reduces signaling overhead while maintaining correction capability.
Solution Approach 2:
The patent transmits only the necessary correction information rather than complete PDU set size data. By sending partial information (correction parameters) instead of full data, the system achieves the required correction function with minimal signaling overhead.
3Measurement precision
If frequent correction parameter transmission is performed, then PSSize accuracy is maintained, but power consumption increases
Solution Approach 1:
The patent implements periodic transmission of correction parameters rather than continuous transmission. The network entity can configure the transmission periodicity, allowing the system to maintain accuracy while reducing power consumption by transmitting corrections only at scheduled intervals when necessary.
Data Source
AI summary
Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive multiple packets of a protocol data unit (PDU) set. The packets may indicate a first PDU set size (PSSize) of the PDU set. The UE may calculate, based on reception of the multiple packets, a second PSSize for the multiple packets of the PDU set and a correction parameter associated with the first PSSize, which is based on the first PSSize and the second PSSize. The UE may transmit a control message indicating a quantized correction parameter associated with the first PSSize based on the correction parameter. In some examples, the correction parameter may be a difference between a ratio of the second PSSize to the first PSSize and one.