Wireless Device Uplink Timing Adjustment High Speed
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wireless communication systems face challenges in maintaining optimal uplink transmit timing adjustments for wireless devices operating at high speeds, particularly due to suboptimal approaches that degrade signal reception quality at network nodes.
Innovation Solution
The method involves a wireless device autonomously adjusting its uplink transmit timing based on its speed and operating bandwidth, using determined timing parameters to ensure consistent behavior and improved signal reception, even in high-speed scenarios, by switching between operational schemes defined by specific transmit timing parameters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the wireless device uses fixed timing adjustment parameters, then the device complexity is reduced, but the reception quality degrades in high-speed scenarios
Solution Approach 1:
The patent applies dynamics by making the timing adjustment parameters adaptive rather than fixed. The wireless device dynamically selects timing adjustment parameters based on its current speed, transitioning from static to dynamic operation. This resolves the contradiction by allowing the system to maintain simple operation at low speeds while automatically adapting to complex high-speed conditions when necessary.
Solution Approach 2:
The patent changes the timing adjustment parameters based on the wireless device's speed. By introducing speed as a variable that influences parameter selection, the system can optimize reception quality for different operating conditions. This parameter change approach allows the device to maintain simplicity under normal conditions while improving reliability when high-speed movement is detected.
2Reliability
If the wireless device autonomously adjusts timing frequently, then the reception quality improves, but the network node receiver cannot cope with abrupt changes
Solution Approach 1:
The patent implements periodic action by adjusting timing parameters at controlled intervals rather than continuously or abruptly. The wireless device updates its timing adjustments in a regulated manner, allowing the network node receiver to adapt to changes systematically. This periodic approach maintains reception quality while preventing harmful abrupt transitions that would overwhelm the receiver.
Solution Approach 2:
The patent applies beforehand cushioning by implementing rules that limit the rate and magnitude of timing adjustments. Before making timing changes, the system ensures they remain within acceptable bounds that the network node receiver can handle. This cushioning mechanism prevents abrupt changes while still allowing necessary timing adjustments to maintain reception quality.
3Measurement precision
If the wireless device uses network-controlled timing adjustment, then the timing accuracy is improved, but the responsiveness to high-speed movement decreases
Solution Approach 1:
The patent applies self-service by enabling the wireless device to autonomously adjust its own timing based on detected speed conditions. Instead of relying solely on network-controlled adjustments, the device takes initiative to adapt its timing parameters when high-speed movement is detected. This self-service capability improves responsiveness while maintaining accuracy through structured adjustment rules.
Solution Approach 2:
The patent implements preliminary action by having the wireless device detect its speed and proactively adjust timing parameters before network control mechanisms can respond. By performing preliminary speed-based adjustments, the device ensures timely response to high-speed conditions while subsequent network-controlled adjustments maintain overall timing accuracy through coordinated operation.
Data Source
AI summary
According to one aspect of the disclosure, a wireless device is configured to communicate with a network node is provided. The wireless device includes processing circuitry configured to: receive an indication, adjust a transmit timing based at least on the indication, and optionally transmit signals based at least on the adjusted transmit timing.