Assisting RAT Timeline Synchronization for Wi-Fi Reliability
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Solution Overview
Problem
Current wireless communication systems face challenges in achieving reliable and efficient communication using multiple radio access technologies (RATs), particularly due to the asynchronous nature of technologies like Wi-Fi, which leads to interference and reduced data throughput, while cellular technologies like LTE offer reliability but at higher processing and power costs.
Innovation Solution
The system employs an assisting RAT, such as LTE, to synchronize and leverage physical layer properties of another RAT, like Wi-Fi, for improved communication by aligning timelines and utilizing common MAC layers to enhance reliability, coverage, and data throughput.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If Wi-Fi is used for communication, then bandwidth cost is reduced and robust communication is provided, but reliability is reduced due to noisy channel and lack of error checking
Solution Approach 1:
The patent segments the communication functions across two different RATs: LTE handles control plane communications and reliability-critical functions, while Wi-Fi handles user plane data communications. This segmentation allows each RAT to operate in its optimal mode, with LTE providing reliable control signaling and Wi-Fi providing high-speed data transfer.
Solution Approach 2:
The patent merges LTE and Wi-Fi networks into a unified communication system where both networks work together to provide enhanced functionality. The UE maintains connections to both networks simultaneously, leveraging the strengths of each RAT to achieve both reliability and high data throughput.
2Reliability
If LTE is used for communication, then reliability is improved through synchronized communications and error checking, but processing power consumption and bandwidth cost increase
Solution Approach 1:
The patent segments the communication workload by assigning control plane functions to LTE and user plane functions to Wi-Fi. This allows the device to use Wi-Fi for energy-efficient data transfer while relying on LTE only for essential control signaling, thereby reducing overall power consumption while maintaining reliability.
Solution Approach 2:
The patent creates a multi-functional communication system where the UE can operate on both LTE and Wi-Fi networks simultaneously. This universality allows the system to leverage Wi-Fi for energy-efficient data communication while using LTE for reliable control plane operations, optimizing both power consumption and reliability.
3Productivity
If asynchronous Wi-Fi communications are used, then bandwidth availability is improved, but interference increases and data throughput is reduced
Solution Approach 1:
The patent introduces LTE as an intermediary layer that mediates between the asynchronous Wi-Fi communications and the network. The LTE network provides synchronized timing and coordination, acting as a mediator that reduces interference effects while allowing Wi-Fi to maintain its high bandwidth availability for data throughput.
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AI summary
Systems and methods for communicating in a wireless network using a first radio access technology (RAT) and an assisting RAT are disclosed. A first connection can be established with an access point using the first RAT, and a second connection can be established with the access point using the assisting RAT. A timing of the first connection can be synchronized based at least in part on a timeline of the assisting RAT. Communications with the access point over at least the first connection can be based at least in part on the synchronized timing.