3D Modulation Beam Hopping Network Access Node Encoding

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Solution Overview

Problem

In radio access networks, especially with a large number of network access nodes, existing technologies face challenges in maximizing data throughput due to limitations in channel conditions and antenna correlation, which affect the efficiency of data transmission to terminal devices.

Innovation Solution

The implementation of 3D modulation with beam hopping, where each network access node is assigned a unique digital bit pattern, allowing terminal devices to identify and combine transmission sources, thereby optimizing modulation orders and improving data throughput by encoding additional data bits based on available network access nodes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If the number of network access nodes is increased to enhance data throughput, then data throughput is improved, but device complexity and difficulty of detecting and measuring transmissions increase

Engineering Contradiction:
Improvedata throughputVSAvoidsystem complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent applies spatial modulation by using the spatial dimension (different network access nodes) as an additional encoding dimension. Each network access node is assigned a unique identifying property, allowing the terminal device to detect which node transmitted and decode additional bits from the spatial dimension, thereby increasing throughput without proportionally increasing complexity

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The patent uses identifying properties (analogous to color changes) for each network access node transmission. These identifying properties enable the terminal device to distinguish between different transmission sources and decode additional encoded bits, transforming the identification challenge into a useful encoding mechanism

Inventive Principle:
Principle #32Color changes

2Productivity

If additional bits are encoded via signal properties to increase data throughput, then data throughput is improved, but measurement precision and difficulty of detecting transmissions worsen

Engineering Contradiction:
Improvedata throughputVSAvoidtransmission detection accuracy
Core Design Contradiction:
ProductivityVSMeasurement precision

Solution Approach 1:

The patent changes the parameter of using identifying properties (such as signal characteristics) as encodable bits. By modifying the transmission to include these identifiable properties and assigning them specific bit patterns, the system encodes additional information without fundamentally altering the detection mechanism, thus maintaining measurement precision while increasing throughput

Inventive Principle:
Principle #35Parameter changes

3Productivity

If the modulation order is optimized based on available network access nodes, then data throughput is improved, but computational complexity increases

Engineering Contradiction:
Improvedata throughputVSAvoidcomputational complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent applies partial action by having the terminal device detect and process only the identifying properties of the transmitting network access node rather than analyzing all possible node characteristics. This selective detection approach encodes additional bits efficiently while keeping computational complexity manageable by focusing on specific, predetermined identifying properties

Inventive Principle:
Principle #16Partial or excessive action

Data Source

PatentUS10880939B2System and method for controlling a transmission between a network and a terminal device
Publication Date: 2020.12.29 APPLE INC
  • US10880939B2 patent drawing
  • US10880939B2 patent drawing
  • US10880939B2 patent drawing

AI summary

A system and a method for controlling communication between a network and a terminal device, the method including: selecting a plurality of network access nodes based on each network access node being associated with a distinguishing transmission feature; allocating a digital bit pattern to each distinguishing transmission feature, modifying a transmission to the terminal device based on the digital bit pattern; transmitting the transmission to the terminal device; receiving the transmission at the terminal device; identifying the distinguishing transmission feature from the transmission; and processing the transmission based on the digital bit pattern allocated to the distinguishing transmission feature.