Base Station SCell Selection Using Cell Deployment Information
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Solution Overview
Problem
In wireless communication systems, particularly in 5G networks, the process of selecting a secondary cell (SCell) during carrier aggregation (CA) configuration is inefficient due to the lack of effective methods for identifying and configuring SCells based on cell deployment information, leading to ineffective procedures and abnormal cases.
Innovation Solution
A method and device for a base station to acquire cell deployment information, identify a primary cell (PCell) and associate a secondary cell (SCell) with it, and configure the SCell without a separate measurement configuration procedure, using information such as identification details and overlap coverage, to facilitate efficient CA.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a separate measurement configuration procedure is used for SCell selection, then measurement precision can be improved, but device complexity and procedure time increase
Solution Approach 1:
The base station performs preliminary actions by acquiring cell deployment information and identifying candidate SCells based on coverage overlap with PCell before the actual SCell selection procedure. This preliminary identification using deployment information (coverage overlap) allows the system to pre-filter suitable SCells, reducing the need for extensive separate measurement configurations later.
Solution Approach 2:
The system uses self-service by leveraging existing cell deployment information and coverage overlap data that are already available at the base station to automatically identify suitable SCells. This self-service approach eliminates the need for complex separate measurement configuration procedures, as the base station can autonomously determine SCell candidates based on pre-existing deployment data.
2Measurement precision
If cell deployment information is acquired and processed, then SCell selection accuracy is improved, but information processing time increases
Solution Approach 1:
The base station performs preliminary acquisition and processing of cell deployment information, including coverage overlap data, before the SCell selection procedure begins. By having this information prepared in advance, the actual SCell selection can proceed more quickly without requiring extensive real-time processing.
3Productivity
If SCell is identified based on coverage overlap information, then configuration efficiency is improved, but measurement precision may be reduced
Solution Approach 1:
The base station performs preliminary identification of SCell candidates using coverage overlap information from cell deployment data before final SCell selection and configuration. This preliminary step using deployment information enables efficient candidate identification, while subsequent procedures can then focus on precise measurement-based confirmation.
Data Source
AI summary
The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). According to various embodiments of the present disclosure, a device of a base station in a wireless communication system includes at least one transceiver, and at least one processor, wherein the at least one processor may be configured to: acquire cell deployment information about a plurality of cells; identify a primary cell (PCell) on the basis of measurement information; identify a secondary cell (SCell) associated with the PCell on the basis of the cell deployment information; and set up the identified SCell.