Device-to-Device Network Feedback Sharing for Access Terminal Power Optimization

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Wireless communication systems face inefficiencies in determining whether an access point can meet a terminal's service or performance needs without camping on it, leading to unnecessary power and resource consumption through trial and error.

Innovation Solution

Access terminals use device-to-device (D2D) links to share network feedback information, allowing them to determine if another access point can provide desired services without direct network configuration data, by composing and transmitting network feedback expressions (NFEs) between terminals.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If access terminals use trial and error to determine whether an access point can meet service needs, then service compatibility can be verified, but power consumption and resource usage increase

Engineering Contradiction:
Improveservice compatibility verificationVSAvoidpower consumption
Core Design Contradiction:
ReliabilityVSUse of energy by moving object

Solution Approach 1:

The patent applies preliminary action by having access terminals share network feedback information about access point service capabilities before other terminals attempt to camp on those access points. This advance information sharing allows terminals to avoid unnecessary trial-and-error camping attempts, thereby reducing power consumption while ensuring service compatibility can be verified in advance through the shared feedback data

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent implements feedback by creating a network feedback information sharing mechanism where terminals that have successfully camped on access points provide feedback about service capabilities to other terminals. This feedback loop enables receiving terminals to make informed decisions about which access points to camp on, avoiding wasted power on incompatible access points while maintaining reliable service compatibility verification

Inventive Principle:
Principle #23Feedback

2Use of energy by moving object

If access terminals share network feedback information using D2D links, then power consumption is reduced, but device complexity increases

Engineering Contradiction:
Improvepower consumptionVSAvoidcommunication protocol complexity
Core Design Contradiction:
Use of energy by moving objectVSDevice complexity

Solution Approach 1:

The patent applies universality by designing the network feedback information sharing mechanism to operate over existing device-to-device communication links that terminals already have established for other purposes. By reusing existing D2D communication infrastructure rather than creating dedicated feedback channels, the patent reduces power consumption through efficient communication while avoiding excessive device complexity that would result from building entirely new communication protocols

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent implements self-service by enabling access terminals to autonomously generate, share, and process network feedback information about access point service capabilities without requiring complex centralized coordination. Each terminal independently manages its own feedback information sharing, which reduces overall system complexity while achieving power savings through avoided trial-and-error camping attempts

Inventive Principle:
Principle #25Self-service

Data Source

PatentEP3400736B1Sharing network feedback information using a device-to-device link
Publication Date: 2020.06.17 QUALCOMM INC
  • EP3400736B1 patent drawingFigure 1
  • EP3400736B1 patent drawingFigure 2
  • EP3400736B1 patent drawingFigure 3

AI summary

Systems and methods are disclosed for sharing network feedback information. The method may include establishing, at a first access terminal, a wireless link with an access point, receiving network configuration data from the access point, composing a network feedback expression that indicates a status or availability of at least one network service associated with the access point, and transmitting the network feedback expression to a second access terminal via a D2D link.