Wireless Transceiver Coordination via Predictive Timing
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Solution Overview
Problem
Existing wireless devices face signal interference issues when multiple wireless circuits, such as 4G LTE and Bluetooth/Wi-Fi, operate simultaneously, leading to reduced throughput and battery consumption due to limited airtime allocation based on real-time transmission status indicators.
Innovation Solution
A method to coordinate the operation of adjacent wireless transceivers on a single device by predicting future transmission states and allowing continuous data transmission across multiple time slots where the primary transceiver is not transmitting, ensuring sufficient time for acknowledgment signals to be received without interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If real-time transmission status indication is used to coordinate wireless circuits, then signal interference is reduced, but Bluetooth/Wi-Fi throughput is limited due to frequent interruptions
Solution Approach 1:
The base station provides advance indication of future uplink transmission timing to the mobile device. This allows the mobile device to predict when 4G LTE transmissions will occur and proactively schedule Bluetooth/Wi-Fi transmissions during confirmed safe time slots, eliminating the need for frequent real-time interruptions and acknowledgments.
Solution Approach 2:
The system dynamically adjusts the coordination mechanism from real-time reactive control to predictive adaptive control. By using predicted uplink timing information, the system can dynamically optimize Bluetooth/Wi-Fi transmission opportunities without being constrained by fixed 1ms real-time decision windows.
2Adaptability or versatility
If 4G LTE and Bluetooth/Wi-Fi circuits operate simultaneously, then device functionality is enhanced, but signal interference occurs due to the near-far problem
Solution Approach 1:
The base station acts as an intermediary that provides timing coordination information to the mobile device. This intermediary information allows the mobile device to independently coordinate its 4G LTE and Bluetooth/Wi-Fi transmissions without direct real-time control from the base station, reducing interference while maintaining multi-network functionality.
3Productivity
If Bluetooth/Wi-Fi transmission is allowed to continue across multiple time slots, then throughput is improved, but interference risk increases if 4G LTE transmission occurs
Solution Approach 1:
The mobile device uses predicted uplink timing information received in advance to identify future time slots where 4G LTE transmissions will not occur. Bluetooth/Wi-Fi transmissions are then scheduled during these pre-identified safe time slots, ensuring both extended airtime utilization and protection against interference.
Data Source
AI summary
A method is provided of coordinating adjacent first and second wireless networks, comprising: receiving a signal at a controller on a wireless device, the received signal indicating an intended transmission state of the first network during a future time slot, the intended transmission state indicating whether or not the first network intends to transmit first data during the future time slot; transmitting second data in the second network to a remote device if the intended transmission state indicates that the first network does not intend to transmit first data during the future time slot; and controlling transmission of the second data in the second network such that the transmission ends during the future time slot in which the first network does not intend to transmit first data, with sufficient time remaining to allow the second network to receive a reply transmission from the remote device.