Mobility Procedure Control for Adaptive Transmission Entity Handling

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Solution Overview

Problem

Existing communication technologies experience data loss and interruption during mobility procedures due to static RRC configurations, which do not adapt to dynamic cell changes in vehicle networking and intelligent driving scenarios.

Innovation Solution

A control method and device that dynamically adjust processing for transmission entities based on purpose information during mobility procedures, utilizing both RRC configuration and control signaling to reduce data loss and interruption time.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If static RRC configuration is used for transmission entity processing, then device complexity is reduced and ease of operation is improved, but data loss occurs and reliability deteriorates during dynamic cell changes

Engineering Contradiction:
Improvedata loss preventionVSAvoidprocessing complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent introduces dynamic processing for transmission entities by differentiating between mobility procedures based on purpose information. The network device configures different processing manners (first processing manner for L1/L2 controlled mobility, second processing manner for RRC controlled mobility) based on the mobility purpose, allowing the system to adapt its complexity and behavior dynamically rather than using a static configuration for all cases.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent changes the processing parameters of transmission entities based on the mobility procedure purpose. By introducing purpose information and configuring different processing manners accordingly, the system modifies how transmission entities are processed (e.g., whether to reset MAC entity, how to handle L2 entities) depending on the specific mobility scenario, thereby preventing data loss without uniformly increasing complexity.

Inventive Principle:
Principle #35Parameter changes

2Loss of time

If static RRC configuration is used for transmission entity processing, then device complexity is reduced, but interruption time increases during cell changes

Engineering Contradiction:
Improveinterruption timeVSAvoidprocessing complexity
Core Design Contradiction:
Loss of timeVSDevice complexity

Solution Approach 1:

The patent enables dynamic adaptation of processing procedures based on mobility purpose information. By configuring different processing manners for different mobility scenarios (L1/L2 controlled vs. RRC controlled mobility), the system can optimize interruption time for each specific case rather than using a one-size-fits-all static approach, thereby reducing overall interruption time without uniformly increasing complexity.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent applies preliminary action by configuring processing manners in advance based on mobility purpose information. The network device pre-configures how transmission entities should be processed for different mobility scenarios, allowing the terminal device to execute the appropriate processing immediately when a mobility procedure is triggered, thereby reducing interruption time without requiring complex real-time decisions.

Inventive Principle:
Principle #10Preliminary action

3Reliability

If dynamic processing based on mobility purpose is implemented, then data loss is reduced and reliability is improved, but device complexity increases

Engineering Contradiction:
Improvedata loss preventionVSAvoidoperation simplicity
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent enables the terminal device to autonomously determine the appropriate processing manner for transmission entities based on received mobility purpose information. The terminal device self-services by selecting and executing the correct processing procedure (first or second processing manner) without requiring complex external control, thereby improving reliability while keeping the operation relatively simple through automated decision-making.

Inventive Principle:
Principle #25Self-service

4Loss of time

If dynamic processing based on mobility purpose is implemented, then interruption time is reduced, but device complexity increases

Engineering Contradiction:
Improveinterruption timeVSAvoidprocessing complexity
Core Design Contradiction:
Loss of timeVSDevice complexity

Solution Approach 1:

The patent reduces interruption time by pre-configuring processing manners for different mobility scenarios. The network device provides mobility purpose information and corresponding processing configurations in advance, allowing the terminal device to immediately execute the appropriate processing when mobility is triggered, thereby minimizing interruption time while avoiding the need for complex real-time analysis.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentEP4661491A1Control method and apparatus for transport entity
Publication Date: 2025.12.10 BEIJING XIAOMI MOBILE SOFTWARE CO LTD
  • EP4661491A1 patent drawingFigure 1~4
  • EP4661491A1 patent drawingFigure 5~7
  • EP4661491A1 patent drawing

AI summary

Disclosed in embodiments of the present disclosure are a control method and apparatus for a transport entity, which can be applied to systems such as Internet of Vehicles, V2X, and V2V. The method comprises: in response to a terminal device triggering a mobility process, the terminal device determines use information of the mobility process; and according to the use information of the mobility process, the terminal device processes a transport entity corresponding to the mobility process. By implementing the embodiments of the present disclosure, when triggering a mobility process, a terminal device can use different processing modes to process different transport entities according to a use of the mobility process, thereby reducing data loss and the interruption time of a dynamic cell (or cell group) change.