RLC Data Transmission Polling Optimization
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Solution Overview
Problem
Existing RLC data transmission methods in LTE systems waste radio resources due to unnecessary polling and data PDU transmissions, as the timing between poll triggering and actual transmission opportunities can result in status reports arriving after the poll has become obsolete, leading to inefficient use of radio resources.
Innovation Solution
Implementing a method where the transmitting side checks for a status report after a poll is triggered and only transmits the RLC Data PDU if no acknowledgement is received by the time of the next transmission opportunity, thereby canceling unnecessary polls and reducing wastage of radio resources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the transmitting side continuously sends polling messages to request status reports, then the reliability of data transmission is improved, but radio resources are wasted due to unnecessary polls
Solution Approach 1:
The transmitting side performs preliminary actions by checking whether a status report has already been received before triggering a new poll. This prevents redundant polling operations and ensures that polling only occurs when necessary, thereby avoiding radio resource waste while maintaining transmission reliability.
Solution Approach 2:
The system implements feedback mechanisms where the transmitting side monitors the reception status of status reports from the receiving side. Based on this feedback, the transmitting side dynamically decides whether to send new polling messages, optimizing the balance between reliability and resource efficiency.
2Stability of the object's composition
If the transmitting side waits for transmission opportunities to send polls, then the timing coordination is improved, but status reports may arrive after the poll becomes obsolete
Solution Approach 1:
The transmitting side checks for received status reports in advance before initiating the polling process. This preliminary check ensures that the poll will be effective and not obsolete, while still coordinating with transmission opportunities to maintain timing stability.
3Speed
If the transmitting side sends polls immediately after triggering, then the response time is reduced, but radio resources are wasted when no data needs transmission
Solution Approach 1:
The system performs preliminary verification to determine whether a poll is actually needed before transmitting it. This checks whether the receiving side has already sent a status report or whether data actually needs retransmission, thereby avoiding unnecessary polls that would waste radio resources while still maintaining fast response when needed.
Data Source
AI summary
A method of transmitting data is performed by detecting a triggering of a first event, further detecting a triggering of a second event until a third event occurs, and performing a first action if the triggering of the second event is not detected, wherein the first action is based on the detected first event. The first event may be the expiry of a poll retransmit timer, the second event may be a detecting whether a ACK or NACK is not received, the third event may be a next transmission opportunity, and the first action may be setting a polling bit of a data PDU to be transmitted.