Idle-Mode Antenna Selection for Reliable Network Attachment
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Solution Overview
Problem
Existing wireless communication devices face challenges in efficiently selecting the optimal antenna configuration for network attachment, leading to radio link failures and delays due to non-optimal initial antenna configurations and complex antenna selection procedures, especially in scenarios involving multiple radio access technologies, bands, and cells.
Innovation Solution
The apparatus and method involve determining signal measurements for multiple antenna configurations in idle or connected modes, using priority information to select the best configuration for network attachment, thereby optimizing antenna selection by disabling other technologies or bands temporarily to prevent handovers and ensure efficient network connection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the apparatus performs antenna configuration selection in connected mode, then network attachment can proceed, but radio link failures and delays occur due to non-optimal initial antenna configurations
Solution Approach 1:
The patent applies preliminary action by performing antenna configuration selection in idle mode before network attachment. The apparatus determines signal measurements for multiple antenna configurations, selects the optimal configuration, and then performs network attachment using this pre-determined configuration, avoiding delays during connected mode operation
Solution Approach 2:
The patent segments the antenna selection process into distinct phases: measuring signal measurements for multiple antenna configurations, selecting the optimal configuration based on measurements, and then using that configuration for network attachment. This segmentation allows thorough evaluation without compromising attachment speed
2Reliability
If the apparatus evaluates multiple antenna configurations thoroughly, then optimal configuration is selected, but the selection process becomes complex and time-consuming
Solution Approach 1:
The patent performs antenna configuration evaluation in idle mode before network attachment, completing the complex measurement and selection process in advance. This preliminary action simplifies the actual attachment process while maintaining thorough evaluation of multiple configurations
Solution Approach 2:
The patent changes the operational state parameter from idle to connected mode after antenna selection is complete. By performing measurements and selections in idle mode with different operational parameters, the system reduces complexity during the critical attachment phase
3Productivity
If the apparatus disables other radio access technologies and bands temporarily, then handovers are prevented and selection is simplified, but device adaptability is reduced
Solution Approach 1:
The patent performs radio access technology and band selection in idle mode before network attachment. By completing these selections in advance when the device is not yet connected, the system simplifies the attachment process while maintaining the ability to support multiple technologies through proper sequencing
Solution Approach 2:
The patent segments the network access process into distinct phases: idle mode selection of radio access technology and band, then connected mode operation. This segmentation allows thorough evaluation of multiple options without compromising final adaptability, as each phase builds upon the previous selection
Data Source
AI summary
There is provided an apparatus, said apparatus comprising means for, when the apparatus is in idle mode, determining signal measurements for at least two antenna configurations of the apparatus, determining, based on the signal measurements, one of the at least two antenna configurations and performing a network attach procedure using the determined antenna configuration.