RPMA Error Correction With Feedback-Based Early Transmission Stop
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Solution Overview
Problem
Existing communication systems face challenges in efficiently compensating for information not received, or erasures, in Random Phase Multiple Access (RPMA) communication systems, which affects the reliability and accuracy of data transmission.
Innovation Solution
The method involves creating an encoded signal using forward error correction techniques, where a first predetermined part of the encoded signal is transmitted, and the transmission of a second part is terminated upon successful decoding by the receiver, with acknowledgments or negative acknowledgments used to determine decoding success, and noise characteristics or prior transmission success determining the first part of the signal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the entire encoded signal is transmitted to ensure reliable decoding, then the reliability of data transmission is improved, but the transmission time and energy consumption increase
Solution Approach 1:
The receiver sends an acknowledgement signal back to the transmitter when successful decoding is achieved. This feedback mechanism allows the transmitter to terminate transmission early, avoiding unnecessary transmission of remaining encoded signal portions and reducing overall transmission time while maintaining reliability.
Solution Approach 2:
The transmission duration is made dynamic rather than fixed. The transmitter adapts the transmission length based on real-time decoding status at the receiver, terminating transmission as soon as successful decoding is achieved. This dynamic adjustment optimizes the balance between reliability and transmission efficiency.
2Reliability
If forward error correction encoding is applied to correct erasures, then the fault tolerance is improved, but the device complexity increases
Solution Approach 1:
The encoded signal is divided into multiple predetermined portions. This segmentation allows the system to transmit only the necessary number of portions required for successful decoding, reducing the overall complexity of the transmission system while maintaining fault tolerance capabilities through the structured division of the encoded data.
3Reliability
If the transmitter continues transmitting the second predetermined part of the encoded signal, then the reliability is maintained, but the energy consumption increases
Solution Approach 1:
The acknowledgement signal from the receiver provides feedback to the transmitter about successful decoding. Upon receiving this feedback, the transmitter immediately terminates transmission of the second predetermined part of the encoded signal, thereby conserving energy by avoiding unnecessary transmission while ensuring reliability through confirmed successful decoding.
Solution Approach 2:
The system performs preliminary encoding of the data signal into multiple predetermined portions with built-in error correction capabilities. This preliminary action ensures that the minimum necessary information is prepared in advance for reliable decoding, allowing the transmitter to stop early once decoding success is confirmed without compromising reliability.
Data Source
AI summary
This disclosure relates to method, device and system for determining transmit power in a communication system. A node receives an access point interference signal from an access point. The access point interference signal is measured by the access point based in part on an inference from an external system. The node determines a transmit power based in part on the access point interference signal. The node then transmits an uplink signal at the transmit power.