Terminal Handover Configuration Alignment in Dual Connectivity
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Solution Overview
Problem
In dual connectivity scenarios, the configurations set by multiple access network side devices for a terminal device can be incompatible, leading to reduced data transmission efficiency.
Innovation Solution
The method involves sending software version information of the terminal device to access network side devices to generate compatible configurations, and during handovers, adjusting configurations to maintain compatibility and efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple access network side devices establish connections with a terminal device in dual connectivity mode, then data transmission efficiency is improved, but configuration incompatibility occurs between the access network side devices
Solution Approach 1:
The terminal device determines its supported feature set in advance and includes this information in the capability message sent to access network side devices. This preliminary action allows access network side devices to configure compatible parameters before establishing dual connectivity, preventing configuration incompatibility issues.
Solution Approach 2:
The terminal device provides feedback about its supported features through capability messages and measurement reports. This feedback mechanism enables access network side devices to adjust their configurations to ensure compatibility while maintaining dual connectivity for improved data transmission efficiency.
2Adaptability or versatility
If access network side devices use different configuration parameters for terminal device, then device adaptability is improved, but data transmission efficiency is reduced due to incompatibility
Solution Approach 1:
The system applies local quality by allowing different access network side devices to use different configuration parameters (such as different TDM patterns or uplink power configurations) based on the terminal device's locally determined supported feature set. This enables each device to be optimized for its specific role while maintaining overall compatibility.
Solution Approach 2:
The terminal device determines its supported feature set and uses this information to enable or disable specific features dynamically. Access network side devices can change configuration parameters (such as TDM patterns, power configurations) based on the terminal's capability feedback, achieving both adaptability and efficiency.
Data Source
AI summary
Embodiments of this application provide methods and apparatuses for handing over a terminal side device from a source access network side device to a target access network side device. In an implementation, a method includes: sending, by the source access network side device, a handover request to the target access network side device, wherein the handover request comprises a first configuration, and the first configuration is a first time division multiplexing (TDM) pattern configuration or a first uplink power configuration, and receiving, by the source access network side device, a handover request acknowledgement from the target access network side device, wherein the handover request acknowledgement comprises a second configuration, and the second configuration comprises one or more of a second TDM pattern configuration, a second uplink power configuration, or information indicating to release or reserve the first configuration.