Customizable Connected DRX Cycles for Low-Latency XR Traffic
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Solution Overview
Problem
Existing wireless communication systems face inefficiencies in handling extended reality (XR) traffic due to mismatched connected mode discontinuous reception (C-DRX) cycles, leading to increased power consumption and delays in message reception.
Innovation Solution
Implementing customizable C-DRX (cC-DRX) configurations that allow for multiple C-DRX cycles tailored to handle XR traffic efficiently, reducing power consumption and improving operational efficiency by allowing specific UE operations during designated cycles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If traditional C-DRX cycles are used for XR traffic, then power consumption is reduced through discontinuous reception, but message reception delays increase due to mismatched DRX cycles
Solution Approach 1:
The patent divides the C-DRX cycle into multiple sub-cycles (first C-DRX cycle and second C-DRX cycle) with different configurations. The first cycle handles general power saving while the second cycle with shorter duration handles time-sensitive XR traffic, resolving the contradiction between power saving and message reception timing.
Solution Approach 2:
The patent implements dynamic C-DRX configuration where the network can switch between different DRX cycle types based on traffic conditions. The UE can be configured with multiple DRX cycles and the network can dynamically adjust which cycle to use, making the system adaptive to both power saving requirements and message reception timing requirements.
2Productivity
If multiple C-DRX cycles are configured for different UE operations, then operational efficiency for XR traffic is improved, but device complexity increases
Solution Approach 1:
The patent segments the C-DRX configuration into distinct cycle types (first C-DRX cycle for general operations, second C-DRX cycle for XR-specific operations). Each cycle has specific UE operations associated with it, allowing the UE to efficiently handle different traffic types without managing a single complex configuration.
Solution Approach 2:
The patent applies different C-DRX cycle configurations to different UE operations locally. The first C-DRX cycle is associated with a set of UE operations while the second C-DRX cycle is associated with a subset of UE operations, allowing optimized parameters for each specific operation type without affecting other operations.
3Use of energy by moving object
If C-DRX cycles are optimized for power saving, then energy consumption is reduced, but latency for time-sensitive XR traffic increases
Solution Approach 1:
The patent segments the single C-DRX cycle into multiple cycles with different characteristics. The first cycle is optimized for power saving with longer duration, while the second cycle is optimized for low latency with shorter duration, allowing the system to simultaneously achieve both energy efficiency and fast data transmission for XR traffic.
Solution Approach 2:
The patent enables dynamic switching between different C-DRX cycles based on the type of traffic being transmitted. Time-sensitive XR traffic can trigger the use of the second shorter C-DRX cycle for faster transmission, while general traffic can use the first longer cycle for maximum power saving, making the system adaptive to both energy and speed requirements.
Data Source
AI summary
Example implementations include a method, apparatus and computer-readable medium of wireless communication by a user equipment, comprising receiving at least one configuration associated with a plurality of connected mode discontinuous reception (C-DRX) cycles, wherein a first C-DRX cycle of the plurality of C-DRX cycles is associated with a set of user equipment (UE) operations and a second C-DRX cycle of the plurality of C-DRX cycles is associated with a subset of UE operations of the set of UE operations. The implementations further include transmitting data based on performance of one or more UE operations of the subset of UE operations during the second C-DRX cycle.