Base Station Handover Control via Cell Size and Dual Connectivity Data Exchange
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Solution Overview
Problem
In dual connectivity communication, existing methods face challenges in efficiently managing handovers to minimize frequency and ensure continuity, particularly in selecting appropriate target base stations with wide coverage and dual connectivity capabilities during handovers.
Innovation Solution
A communication control method that involves transmitting and storing information related to cell size and dual connectivity capabilities between base stations, allowing for informed decisions on handover target selection through specific procedures like inter-base-station interface setup and handover acknowledgement messages.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If base stations transmit and store cell size and dual connectivity capability information in specific procedures, then handover continuity and quality of service are improved, but procedure complexity and information management overhead increase
Solution Approach 1:
The patent applies preliminary action by having base stations transmit and store cell size and dual connectivity capability information in advance during specific procedures (such as initial connection setup or reconfiguration) before handover events occur. This pre-collection of information enables faster and more informed handover decisions, improving continuity without requiring complex real-time procedures during the actual handover moment.
Solution Approach 2:
The patent implements feedback mechanisms where base stations exchange information about cell characteristics and dual connectivity capabilities through standardized procedures. The storing of this information by second base stations creates a feedback loop that allows source base stations to make informed handover decisions based on previously exchanged information, thereby improving reliability while managing complexity through structured information flow.
2Measurement precision
If base stations exchange detailed cell information in specific procedures, then handover decision accuracy is improved, but information transmission overhead and processing time increase
Solution Approach 1:
The patent applies preliminary action by exchanging cell size and dual connectivity capability information during initial connection procedures or reconfiguration events rather than during handover decision moments. This timing allows base stations to store and process the information in advance, improving handover decision accuracy without adding transmission overhead or processing time during critical handover events.
Solution Approach 2:
The patent manages information transmission time by selectively exchanging specific parameters (cell size and dual connectivity capability) rather than all possible cell information. This parameter selection approach maintains handover decision accuracy for the critical factors while minimizing unnecessary information transmission overhead and processing time.
3Reliability
If base stations store comprehensive cell information for future handover decisions, then future handover performance is improved, but memory requirements and information management complexity increase
Solution Approach 1:
The patent applies local quality by having each base station store only the specific information relevant to its own cells (cell size and dual connectivity capability) rather than maintaining comprehensive databases of all network information. This localized information storage approach improves future handover performance for each base station while minimizing overall memory requirements and information management complexity.
Solution Approach 2:
The patent extracts and stores only the essential information (cell size and dual connectivity capability) from the broader set of possible cell parameters. This extraction approach ensures that base stations store sufficient information for future handover decisions while avoiding the burden of managing excessive data volumes and reducing information management complexity.
Data Source
AI summary
A communication control method according to one embodiment comprises transmitting, by a first base station configured to manage a cell, a message to a second base station in a specific procedure; and storing, by the second base station that receives the message, information included in the message by associating with the cell. The information includes at least one of information related to a cell size of the cell and information related to a capability of the cell for dual connectivity communication.