Terminal Default Paging DRX Setup for LTE and eMTC Differentiation

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Solution Overview

Problem

Existing protocols, such as the 3GPP 36.413 protocol, only allow for a single default paging DRX setting in S1 Setup Request or S1 Configuration Update messages, leading to conflicts between LTE and eMTC terminals, which have different power saving requirements.

Innovation Solution

A terminal default paging DRX setup method and apparatus that determines a terminal setup policy to distinguish between LTE and eMTC terminals, allowing for separate default paging DRX settings and ensuring correct interaction with the MME, even when only one default paging DRX can be transmitted.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a single default paging DRX field is used in S1 Setup Request or S1 Configuration Update message, then the protocol structure remains simple, but LTE and eMTC terminals with different power saving requirements cannot be differentiated

Engineering Contradiction:

Improveterminal differentiation capabilityVSAvoidprotocol message structure

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent segments the single default paging DRX field into two separate fields: one for LTE terminal default paging DRX and another for eMTC terminal default paging DRX. This segmentation allows independent configuration and transmission of different paging DRX parameters for different terminal types, resolving the contradiction by enabling terminal differentiation while maintaining relatively simple protocol structure through clear field separation.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent applies local quality by providing different default paging DRX values tailored to specific terminal types (LTE vs. eMTC). Each terminal type receives the paging DRX parameter optimized for its specific power saving requirements, allowing the system to adapt the quality of service locally for different devices without requiring complete protocol redesign.

Inventive Principle:

Principle #3Local quality

2Adaptability or versatility

If eDRX function is introduced to solve paging DRX conflict, then terminal differentiation is enabled, but compatibility issues arise when eMTC terminals do not support eDRX or when base station has eDRX disabled

Engineering Contradiction:

Improvepaging policy differentiationVSAvoidprotocol compatibility

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The patent segments the paging DRX configuration into separate fields for LTE and eMTC terminals, allowing the system to independently manage paging parameters for each terminal type. This segmentation enables the base station to provide differentiated paging policies while maintaining compatibility with terminals that do not support eDRX, as each terminal type receives appropriate parameters without forcing eDRX functionality.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent changes the parameter transmission approach by introducing separate default paging DRX fields instead of relying solely on eDRX mechanism. This parameter change allows the system to differentiate paging policies for LTE and eMTC terminals while maintaining compatibility with terminals that do not support eDRX or have it disabled, as the differentiation is achieved through parameter configuration rather than mandatory eDRX support.

Inventive Principle:

Principle #35Parameter changes

3Use of energy by moving object

If separate default paging DRX settings are provided for LTE and eMTC terminals, then power saving requirements of different terminals are met, but protocol message complexity increases

Engineering Contradiction:

Improveterminal power savingVSAvoidprotocol message structure

Core Design Contradiction:

Use of energy by moving objectVSDevice complexity

Solution Approach 1:

The patent segments the default paging DRX configuration into distinct fields for LTE and eMTC terminals within the protocol messages. This segmentation enables separate power saving configurations for different terminal types while maintaining a relatively organized and manageable message structure, achieving terminal-specific power optimization without excessive complexity.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent introduces dynamic configuration capabilities where the base station can independently adjust default paging DRX parameters for LTE and eMTC terminals based on their specific power saving requirements. This dynamic adjustment allows the system to optimize energy consumption for different terminal types while maintaining flexibility in protocol implementation.

Inventive Principle:

Principle #15Dynamics

Data Source

PatentUS12335914B2Terminal default paging DRX setup method and apparatus, and electronic device and storage medium

Publication Date: 2025.06.17 ZTE CORP

AI summary

Disclosed are a terminal default paging DRX setup method and apparatus, and an electronic device and a non-transitory computer-readable storage medium. The method may include: determining a terminal setup policy for terminal Default Paging DRX; determining a value of Default Paging DRX in an S1 Setup Request message and/or an S1 Configuration Update message according to the terminal setup policy; and determining, by a base station, a paging time of a terminal type according to a Paging DRX parameter in S1 Paging message received from a core network. The Paging DRX parameter is carried in the S1 Paging message to the base station when the core network initiates paging. The Paging DRX parameter is set according to the Default Paging DRX and a value of UE-specific paging DRX.