ICN Name Compression at PDCP Layer for Spectrum Efficiency

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Solution Overview

Problem

Inefficient use of spectrum resources in ICN-based cellular networks due to the lack of header compression for ICN names at the PDCP layer, leading to inefficient wireless transmission.

Innovation Solution

Compression and decompression of ICN names and common fields at the Packet Data Convergence Protocol (PDCP) layer, using techniques such as Robust Header Compression (ROHC) and mapping mechanisms to reduce packet sizes and improve transmission efficiency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of energy

If ICN names and common fields are transmitted without compression at the PDCP layer, then the transmission is simpler and the protocol implementation is easier, but the packet size is larger and spectrum resources are used inefficiently

Engineering Contradiction:
Improvespectrum resource efficiencyVSAvoidcompression implementation complexity
Core Design Contradiction:
Loss of energyVSDevice complexity

Solution Approach 1:

The patent applies parameter changes by transforming ICN names and common fields from their original format to a compressed format through the PDCP layer. The compression mechanism changes the representation parameters of the data (from full ICN names to compressed identifiers), reducing the amount of data transmitted over the air interface while maintaining the ability to reconstruct the original information at the receiver end.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent extracts and removes redundant information from ICN packets by identifying and compressing the name and common field components separately. The PDCP layer extracts the essential identifying information from full ICN names and transmits only the necessary compressed representation, eliminating unnecessary data repetition and reducing overall packet size.

Inventive Principle:
Principle #2Taking out (Extraction)

2Productivity

If header compression is implemented at the PDCP layer for ICN names, then packet size is reduced and transmission efficiency is improved, but the processing complexity and computational overhead increase

Engineering Contradiction:
Improvewireless transmission efficiencyVSAvoidPDCP layer processing complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent implements preliminary action by performing compression of ICN names and common fields at the PDCP layer before transmission. The compression process prepares the data in advance by encoding it in a more compact form, and the corresponding decompression is performed at the receiver end, eliminating the need for complex processing during the actual transmission phase.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The PDCP layer acts as an intermediary between the upper ICN layer and the lower wireless transmission layer. It introduces compression and decompression functions as mediating processes that transform the data format, allowing efficient transmission without requiring the lower layers to handle complex ICN name processing.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Quantity of substance

If ICN packets are transmitted with full uncompressed names, then the receiver can easily reconstruct the original data, but the air interface bandwidth is consumed more rapidly and more spectrum resources are required

Engineering Contradiction:
Improvepacket sizeVSAvoidspectrum resource consumption
Core Design Contradiction:
Quantity of substanceVSLoss of energy

Solution Approach 1:

The patent changes the parameter representation of ICN names by transforming them from full-length identifiers to compressed forms. This parameter transformation reduces the quantity of data (packet size) that needs to be transmitted over the air interface, directly addressing the issue of excessive spectrum resource consumption while maintaining the ability to recover the original information.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent segments the ICN packet into distinct components (name, common fields, and payload) and applies compression specifically to the name and common field segments. This segmentation allows targeted compression of the identifying information without affecting the payload, reducing overall packet size and spectrum usage efficiently.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS12004006B2Methods and systems for compression and decompression of information centric networking names at the packet data convergence protocol (PDCP)
Publication Date: 2024.06.04 APPLE INC
  • US12004006B2 patent drawing
  • US12004006B2 patent drawing
  • US12004006B2 patent drawing

AI summary

Systems, apparatuses, methods, and computer-readable media are provided for use in a wireless network for compression and decompression of information centric network (ICN) names and/or ICN common fields at Packet Data Convergence Protocol (PDCP) layer. For example, an electronic device can include processor circuitry and radio front end circuitry coupled to the processor circuitry. The processor circuitry can be configured to receive a first information centric network (ICN) packet including an ICN name or an ICN common field and compress the ICN name or the ICN common field at a Packet Data Convergence Protocol (PDCP) layer. The processor circuitry can be further configured to provide the compressed ICN name or the compressed ICN common field to a lower protocol layer. The radio front end circuitry can be configured to transmit a second ICN packet including the compressed ICN name or the compressed ICN common field.