Dual-Leg Burst Packet Ordering With Selective Retransmission
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wireless communication technologies, such as 3GPP LTE and 5G NR, face inefficiencies in reliably transmitting duplicated data packets across multiple transmission legs without considering packet dependencies, leading to suboptimal reliability and efficiency in burst-based operations.
Innovation Solution
A method and apparatus for transmitting data packets on multiple transmission legs with different orders and receiving acknowledgment/non-acknowledgment indications to manage retransmissions and terminations of packets, utilizing protocol stack layers to reorder and manage burst context information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If data packets are transmitted in the same order on multiple transmission legs, then transmission simplicity is maintained, but reliability is reduced due to unnecessary retransmissions
Solution Approach 1:
The transmitting side performs preliminary reordering of data packets before transmission on different legs. By anticipating the need for different reception orders at the receiving side, the system prepares packet sequences in advance, enabling the receiving side to correctly reconstruct the original data flow without requiring complex reordering operations or additional retransmissions.
2Productivity
If all data packets are retransmitted regardless of acknowledgment status, then transmission simplicity is maintained, but efficiency is reduced due to unnecessary retransmissions
Solution Approach 1:
The system implements feedback mechanisms where the receiving side sends acknowledgment information back to the transmitting side regarding which data packets have been successfully received. Based on this feedback, the transmitting side intelligently determines which packets require retransmission, avoiding unnecessary retransmissions of already received packets while ensuring reliable delivery of lost packets.
Solution Approach 2:
Instead of retransmitting all data packets uniformly, the system applies partial action by retransmitting only the specific subset of packets that were not successfully received. This selective retransmission approach optimizes resource utilization by avoiding excessive retransmissions of packets that are already correctly received, thereby improving overall transmission efficiency.
3Productivity
If transmission order is optimized for each leg independently, then transmission efficiency is improved, but packet synchronization becomes difficult
Solution Approach 1:
The patent introduces an intermediary reordering mechanism at the receiving side that acts as a mediator between the differently ordered packets received from multiple transmission legs and the original packet sequence. This intermediary function reconstructs the correct packet order by buffering and resequencing packets, maintaining packet sequence stability despite independent optimization of transmission orders on different legs.
Data Source
AI summary
Various example embodiments provide efficient burst transmission of duplicated data packets. A data burst comprising multiple data packets may be configured to be transmitted on a first transmission leg. The data burst may be further configured to be transmitted on a second transmission leg with a different order of data packets. A reception status of the data packets may be configured to be determined based on transmissions on the first and second transmission legs and non-acknowledged data packets may be retransmitted on the first transmission leg and/or the second transmission leg. Apparatuses, methods, and computer programs are disclosed.