Dynamic Postponement of Sidelink DRX Resources
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Solution Overview
Problem
Current wireless communication systems, particularly in 5G NR, face challenges in efficiently managing periodic resources and discontinuous reception (DRX) to minimize resource waste and ensure timely data transmission, especially in scenarios with jitter and delayed data packets.
Innovation Solution
The proposed solution involves dynamically postponing allocated resources for periodic receptions, allowing for adjustments in the timing of downlink traffic monitoring based on postponement indications received from the base station. This dynamic approach ensures that resources are utilized efficiently even when data packets are delayed, thereby reducing waste and maintaining communication quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If periodic resources are allocated for downlink traffic reception and relay, then communication reliability is improved, but resource waste increases when data packets are delayed or experience jitter
Solution Approach 1:
The patent implements dynamic adjustment of periodic resource reception timing by introducing postponement indications that allow the UE to flexibly delay resource monitoring based on actual data arrival patterns. This transforms the static periodic resource allocation into a dynamic system that adapts to real-time network conditions, reducing resource waste while maintaining communication reliability.
Solution Approach 2:
The patent changes the timing parameter of periodic resource reception by introducing a postponement mechanism. The UE receives postponement indications that modify the scheduled reception timing of periodic resources, allowing the system to adapt resource usage patterns to actual data transmission needs and reduce waste during periods of jitter or delay.
2Device complexity
If periodic resources are monitored at fixed intervals, then resource allocation simplicity is maintained, but data transmission timeliness deteriorates when jitter occurs
Solution Approach 1:
The patent introduces dynamic timing adjustment through postponement indications while maintaining the overall periodic structure. The UE can flexibly postpone resource monitoring timing based on actual data arrival, achieving timely data transmission without completely abandoning the simple periodic allocation framework.
3Productivity
If the UE monitors for downlink traffic at allocated periodic instances, then resource utilization is maximized, but energy consumption increases during periods of no data transmission
Solution Approach 1:
The patent optimizes periodic monitoring by introducing selective postponement of resource monitoring instances. Instead of continuously monitoring all periodic resources, the UE can postpone monitoring when data is not expected to arrive, reducing energy consumption while maintaining resource utilization efficiency during active transmission periods.
Solution Approach 2:
The UE autonomously adjusts its resource monitoring behavior based on received postponement indications, making decisions about when to postpone monitoring without continuous network control. This self-service approach reduces energy consumption by allowing the UE to skip unnecessary monitoring instances while maintaining overall resource utilization efficiency.
Data Source
AI summary
This disclosure provides systems, devices, apparatus, and methods, including computer programs encoded on storage media, for dynamic postponement of periodic resources and DRX active times. A first UE and a second UE may receive, from a base station, an allocation of periodic resources for reception of downlink traffic and relayed downlink traffic over sidelink. The first UE and the second UE may also receive respective postponement indications for reception occasions of the periodic resources and may monitor for the downlink traffic and the relayed downlink traffic at time adjusted instances in response to the respective postponement indications. A base station may send the downlink traffic to the first UE, which may relay the downlink traffic to the second UE, at the time adjusted instances in response to the postponement indications.