Preferred Paging Carrier Selection Using Long-Term UE Measurements

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Solution Overview

Problem

Conventional UE measurement reports based on short-term measurements may lead to inappropriate selection of paging carriers, resulting in lost pages, unnecessary carrier switching, or inefficient resource usage due to the inability to reflect long-term coverage conditions.

Innovation Solution

UEs are enabled to make longer-term measurements and indicate a preferred paging carrier based on suitability, allowing the network to optimize carrier selection for coverage-based paging.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If conventional UE measurement reports based on short-term measurements are used for paging carrier selection, then the measurement process is simple and quick, but the paging carrier selection becomes inappropriate leading to lost pages, unnecessary carrier switching, or inefficient resource usage

Engineering Contradiction:

Improvecoverage condition assessment accuracyVSAvoidmeasurement duration

Core Design Contradiction:

Measurement precisionVSLoss of time

Solution Approach 1:

The UE performs measurements on multiple paging carriers in advance and stores measurement results for later use. When a paging occasion occurs, the UE can immediately select from pre-evaluated carriers based on stored measurement data, eliminating the need for real-time measurement decisions and ensuring accurate carrier selection based on long-term coverage conditions.

Inventive Principle:

Principle #10Preliminary action

2Reliability

If the UE monitors paging occasions in multiple carriers, then the probability of receiving pages increases, but the power consumption and processing complexity increase

Engineering Contradiction:

Improvepage reception reliabilityVSAvoidUE power consumption

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The UE evaluates each paging carrier's coverage quality locally and selectively monitors only those carriers that meet predetermined quality thresholds. By concentrating monitoring resources on locally optimal carriers rather than uniformly monitoring all carriers, the UE achieves reliable page reception while minimizing power consumption and processing complexity.

Inventive Principle:

Principle #3Local quality

3Reliability

If the network transmits paging messages in all configured carriers, then no pages are lost, but the network resource usage becomes inefficient

Engineering Contradiction:

Improvepage delivery reliabilityVSAvoidnetwork resource waste

Core Design Contradiction:

ReliabilityVSLoss of energy

Solution Approach 1:

The UE provides feedback to the network about its preferred paging carrier based on measurement reports. The network uses this feedback information to direct paging message transmissions to the UE's preferred carrier, ensuring reliable page delivery while avoiding unnecessary transmissions on other carriers and thereby reducing network resource waste.

Inventive Principle:

Principle #23Feedback

Data Source

PatentUS12452835B2Indication of preferred paging carrier

Publication Date: 2025.10.21 QUALCOMM INC

AI summary

Certain aspects of the present disclosure provide techniques for indicating a user equipment (UE) preferred paging carrier. According to certain aspects, a method for wireless communications by a UE generally includes generating a cell measurement report, transmitting the cell measurement report to a network entity, transmitting, to the network entity, an indicator of a preferred paging carrier, and monitoring paging occasions (POs) in at least the preferred paging carrier.