Wireless Terminal DRX Configuration for XR Traffic Power Reduction
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Solution Overview
Problem
The mismatch between the integer periodicity of current DRX configurations and the quasi-periodic nature of XR traffic in extended reality (XR) or Cloud Gaming scenarios leads to increased active time and power consumption in user equipment (UE), particularly when XR traffic arrives during DRX-off states.
Innovation Solution
Configuring multiple DRX configurations with different start offsets and potentially shared or separate timers to align the periodicity of DRX with XR traffic, allowing for more efficient power management by ensuring the UE is active during XR traffic intervals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single DRX configuration with integer periodicity is used, then the DRX operation is simple and power saving is achieved, but the periodicity mismatch with XR traffic causes increased active time and power consumption
Solution Approach 1:
The patent segments the DRX configuration into multiple configurations (first DRX configuration and second DRX configuration) with different periodicities. The first DRX configuration uses a first periodicity that is a multiple of the XR traffic periodicity, while the second DRX configuration uses a second periodicity that is not a multiple of the XR traffic periodicity. This segmentation allows the system to handle different traffic patterns effectively, reducing the active time and power consumption by aligning the DRX cycle with the actual traffic arrival pattern.
2Use of energy by moving object
If DRX periodicity is aligned with XR traffic periodicity, then power consumption is reduced, but the DRX configuration becomes more complex to manage
Solution Approach 1:
The patent introduces dynamic switching between multiple DRX configurations based on traffic conditions. The UE can switch between the first DRX configuration (with periodicity multiple of XR traffic periodicity) and the second DRX configuration (with non-multiple periodicity) depending on the actual traffic pattern. This dynamic adaptation allows the system to optimize power consumption while managing complexity through conditional application of different configurations.
3Use of energy by moving object
If multiple DRX configurations are used, then the periodicity mismatch with XR traffic is resolved and power consumption is reduced, but the device complexity increases
Solution Approach 1:
The patent divides the DRX configuration into distinct segments: a first DRX configuration with a first periodicity (multiple of XR traffic periodicity) and a second DRX configuration with a second periodicity (not a multiple of XR traffic periodicity). Each configuration is tailored for specific traffic conditions, allowing the system to segment the problem and apply the most appropriate solution for each scenario, thereby reducing overall power consumption.
Solution Approach 2:
The patent changes the periodicity parameter of the DRX configuration to match different traffic patterns. By adjusting the periodicity from the first configuration (multiple of XR traffic periodicity) to the second configuration (non-multiple periodicity), the system adapts to varying traffic conditions. This parameter change enables precise alignment with XR traffic arrival patterns, minimizing active time and power consumption.
Data Source
AI summary
A wireless communication method for use in a wireless terminal is disclosed. The method comprises receiving, from a wireless network node, a radio resource control, RRC, signaling indicating that a discontinuous reception, DRX, group is configured by using a plurality of DRX configurations, and using DRX parameters configured by using the plurality of DRX configurations to perform a DRX operation for the DRX group, wherein start offsets of the plurality of DRX configurations are different