Packet Jitter Management via Grouped Time Period Delivery
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Solution Overview
Problem
Current 5G wireless communication systems face challenges in providing deterministic latency and fixed periodicity of packet delivery, leading to jitter and communication dropouts, which are unsuitable for applications requiring low jitter and predictable inter-arrival times of packets.
Innovation Solution
Incorporating an identifier in each packet to associate it with a specific time period, allowing for buffering and delivery at predetermined times, ensuring that packets are delivered within their respective time periods, thereby reducing variance and maintaining deterministic inter-delivery times.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If packets are transmitted using standard 5G scheduling mechanisms, then transmission efficiency and resource utilization are improved, but packet delivery time becomes unpredictable and jitter increases
Solution Approach 1:
The transmitter pre-associates each packet with a specific time period or group identifier before transmission. This preliminary action allows the receiver to buffer packets according to their designated time periods, ensuring deterministic delivery timing without requiring complex real-time scheduling decisions that cause jitter.
Solution Approach 2:
The transmission medium is segmented into multiple time periods or groups, with each packet assigned to a specific segment. This segmentation allows independent handling of packets in different time periods, enabling predictable inter-delivery times while maintaining overall system throughput through parallel processing of multiple groups.
2Reliability
If packets are buffered and delivered in predetermined time periods, then deterministic latency and low jitter are achieved, but system complexity increases due to grouping and timing management
Solution Approach 1:
Each packet carries its own time period identifier or group association, enabling self-service buffering where packets automatically route themselves to the correct delivery time period without complex external scheduling. This reduces the burden on the transmitter and receiver to manage timing, as the packets themselves encode their delivery requirements.
Solution Approach 2:
The system uses periodic time periods for packet delivery, creating a regular, predictable rhythm to packet transmission and reception. This periodic structure simplifies buffering management at the receiver, as packets can be delivered in a systematic cycle rather than requiring complex individual scheduling decisions for each packet.
3Productivity
If standard 5G packet transmission is used, then network capacity and throughput are maximized, but communication dropouts and retransmissions occur due to unpredictable delays
Solution Approach 1:
The system incorporates feedback mechanisms where the receiver acknowledges received packets within their designated time periods. This feedback allows the transmitter to verify successful delivery without requiring retransmissions, as packets are delivered with deterministic timing that prevents loss. The group association enables efficient feedback management for multiple packets.
Data Source
AI summary
Methods (100, 300) and apparatus (400, 500) are provided. In an example aspect, a method (100) performed by a receiver (400) of receiving packets is provided. The method (100) comprises receiving (102) packets, wherein each packet includes an identifier that identifies a respective group of a plurality of groups, buffering (104) the packets in a buffer, and delivering (106) the packets from the buffer to a higher layer or application. Delivering (106) the packets to a higher layer or application comprises delivering each packet in a delivery time period associated with the group identified by the identifier of the packet.