Data Packaging Method for Reducing Latency in Communication Devices
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Solution Overview
Problem
ARQ mechanisms in data link layers, such as those in LTE systems, induce latency and require extra network resources for retransmissions, which is problematic for real-time services like online gaming or VoLTE where packet losses often occur, degrading performance.
Innovation Solution
A data packaging method that proactively retransmits unacknowledged data packets using remaining resources within a MAC PDU, rather than adding padding, thereby reducing latency without utilizing additional network resources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If ARQ mechanism is used to guarantee data transmission integrity, then data reliability is improved, but transmission latency increases and network resources are consumed
Solution Approach 1:
The patent applies preliminary action by proactively retransmitting data packets before the receiving end detects missing packets. The transmitting end retransmits previously sent packets in advance using remaining resources in current MAC PDUs, so that when the receiver needs retransmission, the data is already available, eliminating the need for ARQ request-response cycles and reducing latency.
Solution Approach 2:
The patent implements continuity of useful action by continuously utilizing remaining resources in MAC PDUs for retransmission purposes. Instead of leaving resources idle or using them for padding, the system continuously fills remaining space with retransmitted data, ensuring that network resources are constantly used productively to reduce latency without requiring additional network capacity.
2Reliability
If ARQ retransmission is implemented, then data integrity is improved, but extra network resources are required
Solution Approach 1:
The patent applies merging by combining current data transmission with retransmission of previous data in the same MAC PDU. The transmitting end merges new data packets with retransmitted packets, utilizing the remaining resources in current MAC PDUs to carry both types of data simultaneously, thereby achieving retransmission without requiring separate network resources.
Solution Approach 2:
The patent implements multi-functionality by making remaining resources in MAC PDUs serve dual purposes: carrying new data and retransmitting previous data. Instead of leaving remaining resources idle or using them solely for padding, the system makes them universally useful for both initial transmission and retransmission, eliminating the need for dedicated retransmission resources.
Data Source
AI summary
A data packaging method applied in a communication device is disclosed The method includes: transmitting a plurality of first data packets including a plurality of first data contents; storing the plurality of first data contents; obtaining allocated resources for a second data packet; inserting a second data content into the second data packet; determining whether any resources remain in the second data packet after the second data content is inserted into the second data packet; selecting a portion among the plurality of first data contents in response to any resources remaining in the second data packet after the second data content is inserted into the second data packet; inserting the selected portion into the second data packet; and transmitting the second data packet including the second data content and the selected portion; wherein the plurality of first data packets are transmitted previous to the second data packet.