Registration Message Acknowledgment for Network-Terminal Alignment

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Solution Overview

Problem

The alignment of information elements between a network side and a terminal side during the registration procedure is not ensured, leading to potential communication failures due to the network's inability to perceive successful receipt of registration accept messages, which affects subsequent communication.

Innovation Solution

A communication method involving a terminal sending a registration request message, receiving a registration accept message with first indication information, and sending a registration complete message based on the accept message, along with mechanisms to align parameters like PEIPS or eDRX, ensuring synchronized information elements.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If the network side sends a registration accept message without requiring acknowledgment, then the registration procedure is simpler and faster, but the network side cannot perceive whether the terminal successfully receives the information element

Engineering Contradiction:

Improveregistration procedure speedVSAvoidinformation element alignment

Core Design Contradiction:

ProductivityVSLoss of information

Solution Approach 1:

The patent introduces a feedback mechanism where the terminal sends a registration complete message back to the network side after successfully receiving the registration accept message. This feedback loop allows the network side to confirm whether the terminal has correctly received the information element, resolving the information loss problem while maintaining procedural efficiency

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The patent applies preliminary action by having the terminal prepare and send the registration complete message immediately upon successful receipt of the registration accept message. This proactive acknowledgment ensures that the network side is informed in advance of the terminal's reception status, preventing information misalignment before it occurs

Inventive Principle:

Principle #10Preliminary action

2Reliability

If the network side retransmits the registration accept message upon timeout, then information element alignment is ensured, but communication delay increases

Engineering Contradiction:

Improveinformation element alignmentVSAvoidcommunication delay

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The feedback mechanism of sending a registration complete message allows the network side to immediately confirm successful delivery, eliminating the need for timeout-based retransmission logic. This reduces communication delay while maintaining reliability through direct acknowledgment

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

By requiring the terminal to send an immediate acknowledgment upon receiving the registration accept message, the patent performs the confirmation action preliminarily, before any timeout or retransmission scenario can occur. This prevents time loss associated with waiting for timeout expiration

Inventive Principle:

Principle #10Preliminary action

3Device complexity

If the terminal does not send a registration complete message, then device complexity is reduced, but subsequent normal communication is affected

Engineering Contradiction:

Improveterminal protocol complexityVSAvoidsubsequent communication reliability

Core Design Contradiction:

Device complexityVSReliability

Solution Approach 1:

The registration complete message serves as a essential feedback element that confirms information element alignment between terminal and network side. This single message addition ensures subsequent communication reliability without significantly increasing terminal protocol complexity

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The registration complete message serves multiple functions: it confirms receipt of the registration accept message, verifies information element alignment, and triggers subsequent communication procedures. This multi-functionality justifies the added complexity by consolidating multiple critical functions into a single message exchange

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS20260067865A1Communication method and communication apparatus

Publication Date: 2026.03.05 HUAWEI TECH CO LTD

AI summary

This application provides a communication method and a communication apparatus. The method includes: sending a registration request message; receiving a registration accept message, where the registration accept message carries first indication information, and the first indication information indicates to return a registration complete message after the registration accept message is received; and sending the registration complete message based on the registration accept message. This method helps ensure that an information element in a registration accept message between a network side and a terminal side is aligned, so that the terminal can perform normal communication. In addition, first indication information is carried to enable the terminal to return a registration complete message. This further helps improve system compatibility.