Wireless Device Paging Channel Configuration Update

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Solution Overview

Problem

Current wireless communication networks face challenges in efficiently updating the stored configuration of devices in power saving states, such as RRC_INACTIVE, without requiring the device to transition to a connected state.

Innovation Solution

The method involves a wireless device monitoring a paging channel for updates while in a power saving state. Upon receiving a paging message, the device determines if it includes a message for updating its stored configuration. If so, the device performs the specified actions, such as updating its RRC configuration or transitioning to a different state, without necessarily entering the connected state.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the device transitions to connected state for configuration updates, then the configuration can be updated reliably, but the signaling overhead increases and power consumption rises

Engineering Contradiction:

Improveconfiguration update reliabilityVSAvoidsignaling overhead

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent segments the configuration update process by separating the configuration message transmission from the connected state requirements. Configuration updates are delivered via RRCRelease messages or system information blocks while the device remains in inactive state, eliminating the need for full connection establishment while maintaining update reliability through acknowledged reception mechanisms.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent applies preliminary action by pre-configuring the device with configuration parameters before it needs to use them. The network can push configuration updates to the inactive device in advance, and the device stores these configurations for later use when transitioning to connected state, avoiding the need for real-time connection establishment solely for configuration retrieval.

Inventive Principle:

Principle #10Preliminary action

2Reliability

If the device monitors paging channel continuously, then configuration updates can be received immediately, but power consumption increases

Engineering Contradiction:

Improveconfiguration update receptionVSAvoidpower consumption

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The patent implements periodic action through Discontinuous Reception (DRX) cycles. The device monitors the paging channel only at specific periodic intervals defined by DRX parameters rather than continuously. This allows the device to enter low-power states between monitoring occasions while still being able to receive configuration updates when the network transmits them during active monitoring periods.

Inventive Principle:

Principle #19Periodic action

Data Source

PatentUS12317223B2Release, suspend and reconfiguration in paging

Publication Date: 2025.05.27 TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

AI summary

A wireless device performs a method for updating a stored configuration. While in a power saving state, the wireless device monitors a paging channel. When the wireless device receives a paging message on the paging channel, it determines whether the paging channel includes a message relating to updating a stored configuration of the wireless device. If the paging channel includes a message relating to updating the stored configuration of the wireless device, the wireless device performs actions determined by said message.