Mobile Device Network Selection via MIMO Signal Power Analysis
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Solution Overview
Problem
Mobile devices face challenges in selecting the most suitable wireless telecommunications network, particularly in assessing signal strength and distance within MIMO-enabled networks, leading to potential undesired connections with poor performance.
Innovation Solution
The method involves analyzing signal powers received through multiple channels to determine the proximity and signal strength of a mobile device to a MIMO-enabled network, allowing for the selection of an alternative network if the connection is deemed undesirable, such as switching from LTE to CDMA when throughput is low.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a mobile device connects to a MIMO-enabled network without assessing signal strength, then network connection is established quickly, but the connection may be undesired with poor performance
Solution Approach 1:
The patent applies preliminary action by assessing signal strength and channel conditions before establishing a network connection. The mobile device evaluates the MIMO channel quality and compares it against thresholds to determine whether to connect to the MIMO-enabled network or an alternative network, preventing poor-performance connections from being established in the first place.
Solution Approach 2:
The mobile device performs self-assessment of its own signal strength and channel conditions using its received signal strength indicator (RSSI) and channel quality indicators. The device autonomously determines whether the MIMO connection would be desirable without requiring external network assessment, making the system self-sufficient.
2Reliability
If signal power analysis is performed on multiple channels to assess MIMO network quality, then connection reliability improves, but processing time and complexity increase
Solution Approach 1:
The patent applies partial action by performing signal power analysis on a selected subset of channels rather than exhaustively analyzing all possible channels. The device identifies representative channels that provide sufficient information about overall MIMO channel quality, achieving reliable network selection without unnecessary processing of every channel.
Solution Approach 2:
The patent replaces complex mechanical signal processing with simplified power comparison analysis. Instead of performing full channel characterization and MIMO capacity calculations, the device substitutes this with a simpler comparison of received signal powers across channels, achieving similar decision-making with reduced computational burden.
3Reliability
If the mobile device switches to an alternative network when MIMO signal is weak, then connection performance is maintained, but network capacity usage in MIMO network decreases
Solution Approach 1:
The patent applies parameter changes by dynamically adjusting the network selection decision based on signal power parameters. The device compares received signal powers across channels and uses these parameter variations to determine when to switch networks, ensuring that MIMO network capacity is utilized when conditions are favorable while maintaining user experience quality when conditions deteriorate.
Data Source
AI summary
Systems, methods, and computer-readable media, for facilitating selection of networks are provided. In some embodiments, the method includes receiving at a user device a first signal via a first channel of a MIMO-enabled network and a second signal via a second channel of the MIMO-enabled network. A first power associated with the first signal and a second power associated with the second signal are identified. The first power associated with the first channel and the second power associated with the second channel are used to determine an undesired connection of the user device with the MIMO-enabled network.