Buffer Status Report Accuracy in eDCS Wireless Networks
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Solution Overview
Problem
Existing buffer status report (BSR) systems in wireless communication networks using evolved data compression schemes (eDCS) face inaccuracies in reporting data pending for transmission due to packet compression, leading to inefficient resource allocation and potential over or underestimation of data size.
Innovation Solution
A method where user equipment (UE) determines both uncompressed and compressed buffer sizes to generate a BSR, and the base station adjusts the report based on compression gain, allowing for accurate reporting of pending data by considering both compressed and uncompressed packet sizes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If data acceleration techniques are used to compress packets, then transmission efficiency is improved, but the buffer status report may not accurately communicate the amount of data pending for transmission
Solution Approach 1:
The patent segments the buffer status reporting into two distinct parts: uncompressed buffer size and compressed buffer size. This segmentation allows the system to separately track and report both uncompressed and compressed data quantities, resolving the contradiction by providing accurate measurement for both compressed transmission (improving productivity) and reporting accuracy (maintaining measurement precision).
Solution Approach 2:
The patent introduces a new parameter dimension to the buffer status report by including both uncompressed and compressed buffer sizes. This parameter change enables the base station to understand the actual compressed data volume while maintaining awareness of the original uncompressed data quantity, thus preserving measurement precision even as transmission efficiency improves through compression.
2Device complexity
If only uncompressed buffer size is reported, then the buffer status report is simple to generate, but resource allocation becomes inefficient due to compression gains not being accounted for
Solution Approach 1:
The buffer status report is segmented into multiple components (uncompressed buffer size and compressed buffer size), allowing the system to maintain simplicity in tracking uncompressed data while adding compressed data tracking for improved resource allocation efficiency.
Solution Approach 2:
The system performs preliminary compression of packets before transmission and tracks both the uncompressed and compressed sizes in advance. This preliminary action allows the base station to pre-calculate appropriate grant sizes based on actual compressed data volumes, improving resource allocation efficiency without adding complexity to the reporting mechanism itself.
Data Source
AI summary
Methods, systems, and devices are described for wireless communication. A user equipment (UE), for example, may determine a content size of an uncompressed buffer and a content size of a compressed buffer. The UE may then generate a buffer status report (BSR) based on the content sizes of the uncompressed buffer and the compressed buffer. Alternatively, a base station may receive a BSR based on a size of an uncompressed buffer of the UE. The base station may then receive a compressed packet from the UE and may determine a compression gain based on a size of the compressed packet and a size of a corresponding uncompressed packet. The base station may then adjust the received BSR based on the compression gain.