Wireless Device Measurement Gap Pattern Transition

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Solution Overview

Problem

The transition between pre-configured measurement gap patterns (PMGPs) and normal measurement gap patterns (NMGPs) in New Radio (NR) systems is undefined, leading to inefficiencies in signaling overhead, network performance, and UE performance due to varying methods of controlling these transitions.

Innovation Solution

A method and system for a wireless device to detect triggering events and adapt properties between PMGPs and NMGPs, allowing seamless transitions by maintaining and adapting properties associated with each pattern, thereby reducing signaling overhead and improving scheduling efficiency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If pre-configured measurement gap patterns (PMGPs) are used, then measurement efficiency is improved, but transition control complexity increases due to undefined transition methods

Engineering Contradiction:
Improvemeasurement efficiencyVSAvoidtransition control complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent applies parameter changes by dynamically adjusting measurement gap pattern parameters (such as gap length, periodicity, and time offset) based on triggering events. The UE transitions between PMGP and NMGP by modifying these parameters, allowing efficient measurement adaptation without complex transition control mechanisms.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The UE autonomously detects triggering events and performs self-service transitions between PMGP and NMGP without requiring complex network control. The device monitors conditions such as BWP changes and measurement requirements, then independently switches gap patterns, reducing transition control complexity while maintaining measurement efficiency.

Inventive Principle:
Principle #25Self-service

2Adaptability or versatility

If normal measurement gap patterns (NMGPs) are used, then scheduling flexibility is improved, but measurement response time worsens due to longer gap configurations

Engineering Contradiction:
Improvescheduling flexibilityVSAvoidmeasurement response time
Core Design Contradiction:
Adaptability or versatilityVSLoss of time

Solution Approach 1:

The patent implements dynamics by enabling the UE to dynamically switch between PMGP and NMGP based on real-time triggering events. When fast measurement response is needed, the UE uses PMGP with pre-configured parameters. When scheduling flexibility is required, the UE transitions to NMGP. This dynamic adaptation resolves the contradiction between response time and flexibility.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent applies preliminary action through pre-configuration of measurement gap patterns. The network pre-configures PMGP parameters in advance, so when a triggering event occurs, the UE can immediately use the pre-prepared configuration without waiting for new configuration messages, thus reducing measurement response time while maintaining scheduling flexibility through on-demand transitions.

Inventive Principle:
Principle #10Preliminary action

3Adaptability or versatility

If frequent transitions between PMGPs and NMGPs are performed, then measurement adaptability is improved, but signaling overhead increases

Engineering Contradiction:
Improvemeasurement adaptabilityVSAvoidsignaling overhead
Core Design Contradiction:
Adaptability or versatilityVSLoss of substance

Solution Approach 1:

The patent extracts the transition trigger detection function from the network and places it in the UE. The UE independently monitors triggering events such as BWP changes and measurement requirements, then autonomously transitions between gap patterns. This extraction eliminates the need for frequent network signaling to control transitions, reducing signaling overhead while maintaining measurement adaptability.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent implements feedback mechanisms where the UE monitors system conditions (BWP status, measurement requirements) and provides implicit feedback through its autonomous transition decisions. The network configures triggering conditions in advance, and the UE responds to these conditions by selecting appropriate gap patterns, creating a feedback loop that achieves measurement adaptability without continuous network signaling.

Inventive Principle:
Principle #23Feedback

4Speed

If pre-configured measurement gap patterns are used, then measurement speed is improved, but scheduling efficiency during gaps worsens due to UE unavailability

Engineering Contradiction:
Improvemeasurement speedVSAvoidscheduling efficiency
Core Design Contradiction:
SpeedVSProductivity

Solution Approach 1:

The patent applies periodic action through the use of measurement gap patterns themselves, which create periodic measurement opportunities. By transitioning between PMGP (for fast periodic measurements) and NMGP (for flexible scheduling), the system achieves both measurement speed and scheduling efficiency. The periodic gap structure allows the UE to be unavailable only during designated measurement periods while remaining schedulable during normal operation.

Inventive Principle:
Principle #19Periodic action

Data Source

PatentUS20240172029A1Transitioning Between Pre-Configured Measurement Gap Patterns and Normal Measurement Gap Patterns
Publication Date: 2024.05.23 TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
  • US20240172029A1 patent drawing
  • US20240172029A1 patent drawing
  • US20240172029A1 patent drawing

AI summary

A method (1000) by a wireless device (110) for transitioning between measurement gap patterns, MGPs, includes detecting (1002) a triggering event for transitioning from a first MGP to a second MGP. In response to detecting the triggering event, the wireless device maintains (1004) a first set of properties associated with the first MGP and adapts (1006) a second set of properties associated with the first MGP. The wireless device performs (1006) at least one task according to the second MGP based on the first set of properties and the second set of properties.