Non-Cellular Paging via Policy-Based Network Selection

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Solution Overview

Problem

Current wireless communication systems face inefficiencies in paging and network access, particularly when a mobile device is paged across multiple radio access technologies (RATs), as they often require direct access to the network that initiated the page, limiting flexibility and resource utilization.

Innovation Solution

The system allows mobile devices to access available networks other than the one that sent the page request, using a policy-based approach to prioritize RATs based on service type, enabling direct access to the most suitable network for response, and supporting non-cellular RATs for page transmission.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If mobile devices require direct access to the network that initiated the page request, then network control and reliability are improved, but network flexibility and resource utilization deteriorate

Engineering Contradiction:
Improvenetwork controlVSAvoidnetwork flexibility
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The patent segments the paging response process into two independent parts: the page request can be sent through any available network (cellular or non-cellular), while the response can be routed through a different network based on device preference and network conditions. This segmentation allows the device to receive the page through one network interface and respond through another, breaking the traditional constraint that required responding through the same network that initiated the page.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent introduces an intermediary mechanism where the device's policy module acts as a mediator between the received page request and the network response system. This policy module evaluates available networks and determines the optimal response path based on pre-configured policies, service types, and current network conditions, allowing flexible routing independent of the original page transmission network.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Adaptability or versatility

If mobile devices use multiple concurrent RATs for communication, then network versatility and resource utilization are improved, but device complexity and management difficulty increase

Engineering Contradiction:
Improvenetwork versatilityVSAvoiddevice complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent implements a self-service mechanism where the mobile device autonomously manages its multi-RAT communications through policy-based decision-making. The device's policy module automatically evaluates available networks, determines the optimal response path, and executes the decision without requiring complex external coordination or manual intervention. This self-service approach simplifies the overall system by shifting the management burden from the network side to the device side.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent utilizes parameter changes in the form of policy configurations that define prioritization rules for different service types and network conditions. By changing policy parameters based on service type (e.g., voice, data, emergency), the device dynamically adjusts its network selection and response behavior, enabling versatile multi-RAT operation without requiring complex real-time decision-making logic.

Inventive Principle:
Principle #35Parameter changes

3Speed

If mobile devices prioritize response time over network selection flexibility, then communication speed is improved, but network efficiency and resource optimization deteriorate

Engineering Contradiction:
Improveresponse timeVSAvoidnetwork efficiency
Core Design Contradiction:
SpeedVSProductivity

Solution Approach 1:

The patent applies preliminary action by pre-configuring policy rules in the device that define preferred response networks for different service types and conditions. These policies are established beforehand and include prioritization rules that enable rapid decision-making when a page request is received. The device maintains a pre-evaluated list of available networks and their suitability for different scenarios, allowing immediate response without complex real-time analysis.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent implements dynamics by allowing the policy-based network selection to adapt in real-time based on current network conditions, device state, and service type. While policies are pre-configured, their application is dynamic - the device continuously monitors network availability and adjusts its response path selection based on current conditions, balancing speed and efficiency requirements.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentEP3183927B1Sending cellular-related paging messages over a non-cellular rat
Publication Date: 2021.06.16 QUALCOMM INC
  • EP3183927B1 patent drawingFigure 1
  • EP3183927B1 patent drawingFigure 2
  • EP3183927B1 patent drawingFigure 3

AI summary

The application relates to wireless communication systems, and more particularly to page transmission and response in systems which may utilize multiple concurrent radio access technologies for wireless communications with a mobile device. In some cases, it may be desirable to enable cellular paging of a mobile device on a non-cellular RAT, including WLAN or Wi-Fi. Paging over non-cellular technologies may require the core network (1840) to be able to deliver information to mobile devices (1815) such that the mobile devices detect when they are being paged over non-cellular RATs (1810). A mobile device may determine that it is capable of receiving a paging message via a non-cellular RAT, and it indicates to a network that it is capable of such paging. Accordingly, in addition to cellular paging, the mobile device may be paged for cellular or non-cellular data via a non-cellular RAT. Non-cellular paging may be facilitated by a non-cellular paging server (1860), which may be an independent network-side entity or may be an aspect of another network entity, such as an mobility management entity (1840).