Multicast DRX Cycles for Unicast XR Traffic
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently managing discontinuous reception (DRX) configurations, particularly for immersive extended reality (XR) applications, where multiple active connected DRX configurations are needed to align with diverse data flow periodicities, impacting latency and power consumption.
Innovation Solution
The implementation of multicast DRX cycles for unicast data transmission allows for flexible configuration of active and inactive times, enabling efficient data communication that aligns with various XR traffic flows without requiring significant changes to existing wireless communication standards.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple active connected DRX configurations are used to align with diverse data flow periodicities, then latency is reduced and power consumption is optimized, but device complexity increases
Solution Approach 1:
The patent applies universality by enabling a single multicast DRX configuration to serve multiple functions: it supports both multicast data transmission and unicast data communication. The network entity reuses the existing multicast DRX cycles to accommodate unicast traffic with different periodicities, eliminating the need for separate unicast DRX configurations for each data flow. This multi-functional approach reduces device complexity while maintaining low latency performance.
2Loss of energy
If multiple active connected DRX configurations are implemented, then power consumption is reduced, but implementation complexity increases
Solution Approach 1:
The invention makes the multicast DRX configuration universal by allowing it to handle both multicast and unicast data communication. The network entity configures the UE to perform unicast data communication during the active times of the multicast DRX cycles, eliminating the need for separate unicast DRX configurations. This approach reduces power consumption while minimizing implementation complexity by reusing existing DRX infrastructure.
Solution Approach 2:
The patent merges the multicast and unicast DRX functions into a single unified configuration. Instead of maintaining separate DRX configurations for multicast and unicast traffic, the system combines them by allowing unicast data to be transmitted during the active periods of the multicast DRX cycles. This merging reduces the number of configurations the UE must manage, thereby reducing implementation complexity while maintaining energy efficiency.
3Reliability
If existing wireless communication standards are modified to support multiple active DRX configurations, then XR application performance is improved, but standard changes are required
Solution Approach 1:
The patent achieves XR device performance improvement without requiring major standard changes by making the multicast DRX configuration universal. The network entity is configured to perform unicast data communication during the active times of the multicast DRX cycles, which are already defined in existing standards. This approach leverages existing standard mechanisms while achieving enhanced performance for XR applications with diverse data flow periodicities.
Data Source
AI summary
Systems and techniques are provided for wireless communication. A first network entity (e.g., a user equipment (UE)) can receive information indicative of a configuration for multicast discontinuous reception (DRX). The information can be received from a second network entity (e.g., a base station). The first network entity can perform unicast data communication using one or more multicast DRX cycles of a plurality of multicast DRX cycles corresponding to the configuration, wherein the unicast data communication is performed between the first network entity and the second network entity. A second network entity (e.g., a base station) can transmit, to a user equipment (UE), information indicative of a configuration for multicast discontinuous reception (DRX). The second network entity can perform unicast data communication with the UE using one or more multicast DRX cycles of a plurality of multicast DRX cycles corresponding to the configuration.