Proximity Sensing with Configured Measurement Gaps

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Solution Overview

Problem

Current wireless network technologies face challenges in efficiently utilizing measurement gaps for body proximity sensing (BPS) operations, which can compromise UE throughput and impact network capacity, as they require dedicated uplink gaps that interfere with other component carriers.

Innovation Solution

The proposed solution leverages legacy measurement gaps (MGs) for BPS sensing by repurposing portions of the RF tuning margin, allowing for BPS operations during RF tuning and measurement periods, and utilizing TDD configuration or timing advances to determine available symbols for BPS transmissions within the MG.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If dedicated uplink gaps are configured for BPS operations, then BPS sensing capability is improved, but network capacity and UE throughput deteriorate due to interference with other component carriers

Engineering Contradiction:
ImproveBPS sensing capabilityVSAvoidnetwork capacity and UE throughput
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The measurement gap is designed to serve multiple functions: traditional measurement operations and body proximity sensing operations. By making the measurement gap universal, the system eliminates the need for separate dedicated uplink gaps for BPS, thereby maintaining network capacity while enabling BPS capability.

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

Solution Approach 2:

The patent merges BPS operations with existing measurement gap resources. Instead of creating separate time resources for BPS, the system combines BPS sensing with the measurement gap structure, allowing both measurement and sensing functions to share the same time window.

Inventive Principle:
Principle #5Merging (Combining)

2Adaptability or versatility

If measurement gaps are extended to include BPS operations, then BPS sensing opportunity is improved, but measurement gap duration increases affecting network efficiency

Engineering Contradiction:
ImproveBPS sensing opportunityVSAvoidmeasurement gap duration
Core Design Contradiction:
Adaptability or versatilityVSDuration of action of moving object

Solution Approach 1:

The measurement gap is segmented into different time portions: a first portion for traditional measurement operations and a second portion for BPS operations. This segmentation allows the system to accommodate BPS without extending the overall measurement gap duration, as the BPS portion utilizes the existing gap time efficiently.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system performs RF tuning operations during the measurement gap before the actual measurement and BPS transmissions. By completing the tuning action in advance within the gap, the system prepares the necessary resources without requiring additional gap time, thus maintaining network efficiency.

Inventive Principle:
Principle #10Preliminary action

3Productivity

If RF tuning margin is utilized for BPS operations, then spectrum utilization is improved, but RF tuning complexity increases

Engineering Contradiction:
Improvespectrum utilizationVSAvoidRF tuning complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The UE autonomously determines the timing and duration of BPS operations within the measurement gap without requiring explicit network configuration for each BPS instance. The device self-manages the RF tuning and transmission timing, reducing the complexity of network-side control while improving spectrum utilization efficiency.

Inventive Principle:
Principle #25Self-service

Data Source

PatentUS11985530B2Technologies for proximity sensing with configured gaps
Publication Date: 2024.05.14 APPLE INC
  • US11985530B2 patent drawing
  • US11985530B2 patent drawing
  • US11985530B2 patent drawing

AI summary

The present application relates to devices and components including apparatus, systems, and methods for performing body proximity sensing operations based on uplink or measurement gaps.