PDCP Uplink Data Compression With Hardware Acceleration

Solution Overview

Problem

Existing wireless communication systems face challenges in smoothly providing services due to high complexity and delay in data compression and decompression processes, particularly in uplink and downlink transmissions, which affect coverage and data transmission efficiency.

Innovation Solution

A method and apparatus that utilize uplink data compression (UDC) and decompression processes in the PDCP entities of wireless communication systems, employing hardware accelerators to process data in parallel, with the option to compress or decompress data based on configuration information, and using UDC headers for management.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If data compression and decompression processes are implemented in wireless communication systems, then data transmission efficiency is improved, but processing complexity and delay increase

Engineering Contradiction:

Improvedata transmission efficiencyVSAvoidprocessing complexity

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The patent replaces software-based compression algorithms with a hardware accelerator that implements compression and decompression operations in hardware. This substitution of mechanical/computational systems with dedicated hardware circuitry reduces processing complexity while maintaining improved data transmission efficiency.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent introduces a hardware accelerator as an intermediary component between the processor and memory systems. This mediator handles the computationally intensive compression and decompression operations, isolating the main processor from complexity while enabling efficient data transmission through specialized hardware assistance.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Productivity

If data compression and decompression processes are implemented in wireless communication systems, then data transmission efficiency is improved, but transmission delay increases

Engineering Contradiction:

Improvedata transmission efficiencyVSAvoidtransmission delay

Core Design Contradiction:

ProductivityVSLoss of time

Solution Approach 1:

The patent replaces software-based compression algorithms with a hardware accelerator that implements compression and decompression operations in hardware. This substitution of mechanical/computational systems with dedicated hardware circuitry reduces processing complexity while maintaining improved data transmission efficiency.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent introduces a hardware accelerator as an intermediary component between the processor and memory systems. This mediator handles the computationally intensive compression and decompression operations, isolating the main processor from complexity while enabling efficient data transmission through specialized hardware assistance.

Inventive Principle:

Principle #24Intermediary (Mediator)

Data Source

PatentUS12507117B2Method and device for processing data in wireless communication system

Publication Date: 2025.12.23 SAMSUNG ELECTRONICS CO LTD

AI summary

A method of processing data in a wireless communication system, the method being performed by a transmitting packet data convergence protocol (PDCP) entity, includes: receiving data from an upper layer; perform compression on the received data based on uplink data compression (UDC) configuration information; perform ciphering on the compressed data; and adding a UDC header and a PDCP header to the ciphered data and transmitting the resulting data to a lower layer.