Aggregated Connection Setup During Conditional Handover
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Solution Overview
Problem
In wireless communication, the need for a terminal to release and wait for a new aggregation configuration after cell handover decreases data transmission rates due to the mismatch between source and target cell configurations.
Innovation Solution
Implementing a conditional handover (CHO) method that allows terminals to receive aggregation configuration information in advance, enabling them to directly acquire and establish an aggregation connection with the target cell during handover, thus eliminating the need for post-handover configuration setup.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the terminal releases the aggregation configuration of the source cell and waits for the target cell to send the new aggregation configuration after handover, then the aggregation configuration can be properly established, but the data transmission rate decreases due to the waiting time
Solution Approach 1:
The patent applies preliminary action by having the terminal acquire aggregation configuration information from the target cell before handover occurs. The terminal receives CHO commands containing aggregation configuration information in advance, stores this information locally, and immediately applies it upon handover without waiting for post-handover configuration messages. This eliminates the configuration waiting period and maintains continuous data transmission.
2Productivity
If the terminal acquires aggregation configuration information in advance through CHO commands, then the data transmission rate is maintained during handover, but the device complexity increases due to additional configuration management
Solution Approach 1:
The patent applies self-service by enabling the terminal to autonomously manage the aggregation configuration information received in CHO commands. The terminal independently stores the configuration information, monitors handover conditions, and applies the configuration without requiring continuous network control or additional signaling. This self-managed approach minimizes the impact of the added functionality on overall system complexity.
Data Source
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AI summary
A method for establishing an aggregated connection belongs to the technical field of wireless communications. The method is executed by a terminal. The method comprises: before a terminal performs cell handover, the terminal receiving a conditional handover (CHO) command sent by a source base station, the CHO command containing respective aggregation configuration information of at least one candidate cell (201); when the terminal is handed over to a target cell, the terminal being able to directly acquire target aggregation configuration from aggregation configuration information of the target cell (202); and establishing an aggregated connection on the basis of the target aggregation configuration (203). In this process, there is no need to wait until the handover to the target cell and then configure the aggregation configuration by the target cell, instead, the establishment of an aggregated connection can be completed during handover, so that data transmission can be performed immediately using the aggregation technology after successfully accessing the target cell, thereby improving the data transmission rate during cell handover by means of the CHO command.