Dynamic Transmit Power Adjustment for Wireless Deadline Reliability
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Wireless communication systems face challenges in ensuring reliable transmission of messages with deadlines, particularly in scenarios where survival time requirements are critical, as existing technologies lack effective mechanisms to increase transmit power during failed transmissions to meet these deadlines.
Innovation Solution
A method and apparatus for determining a transmit power level increase based on failed transmissions with deadlines, where the power increase is applied during the survival time to ensure timely reception of messages, utilizing power adjustment levels and TPC commands to enhance link reliability and service continuity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If transmit power is increased to ensure reliable message transmission within deadline, then transmission reliability is improved, but energy consumption increases
Solution Approach 1:
The patent implements dynamic transmit power adjustment by monitoring transmission success and deadline proximity. The source device transitions between normal power mode and enhanced power mode based on real-time conditions, allowing power levels to adapt dynamically rather than remaining static. This resolves the contradiction by increasing power only when necessary for reliability while conserving energy during successful transmissions.
Solution Approach 2:
The patent changes the transmit power parameter based on transmission outcomes and timing constraints. When a message transmission fails or the deadline approaches, the system adjusts the power parameter to an enhanced level. This parameter change strategy ensures reliability improvement only when needed, avoiding unnecessary energy consumption during successful transmissions.
2Reliability
If transmit power is increased during failed transmissions to meet deadline, then message delivery reliability is improved, but interference to other communications increases
Solution Approach 1:
The patent applies preliminary anti-action by preemptively increasing transmit power when transmission failure is detected or deadline proximity is identified. This counteracts the potential harm of missed deadlines before they occur, ensuring message delivery reliability while limiting interference to only those time periods when necessary for correction.
Solution Approach 2:
The system dynamically adjusts power levels based on transmission status, transitioning from normal to enhanced power mode only when needed. This dynamic approach minimizes interference by maintaining low power during successful transmissions while providing high power only during recovery attempts, resolving the contradiction between reliability and interference.
3Reliability
If retransmission attempts are made during survival time, then service continuity is maintained, but transmission latency increases
Solution Approach 1:
The patent implements preliminary action by detecting transmission failures and initiating power enhancement procedures within the survival time window. The system proactively increases power and schedules retransmissions before the deadline expires, ensuring service continuity while minimizing the time loss by acting quickly rather than waiting for complete failure.
Solution Approach 2:
The system rushes through the retransmission process by prioritizing enhanced power transmissions during the survival time period. When a message is not acknowledged, the source device quickly transitions to enhanced power mode and schedules urgent retransmissions, skipping normal power-saving delays to ensure delivery within the deadline, thus maintaining service continuity with minimal latency.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a source device may determine a transmit power level increase based at least in part on a failed transmission for a message having a deadline for reception at a target device. For example, in some aspects, the deadline for reception of the message may be based at least in part on a survival time for an application consuming a communication service associated with the message. The source device may transmit a next message using the transmit power level increase during the survival time and prior to the deadline for reception of the message at the target device. Numerous other aspects are provided.