DRX Group Active Time Control During BWP Switching
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Solution Overview
Problem
Existing communication technologies face challenges in determining active time for user equipment (UE) configured with multiple Discontinuous Reception (DRX) groups, leading to inefficient power consumption and potential interference due to unsynchronized DRX group transitions and uplink resource management during BWP switching.
Innovation Solution
A scheme for determining active time based on DRX configurations and managing uplink resources by selecting a DRX group and resuming configured resources after a successful Random Access (RA) procedure, using explicit signaling or network confirmation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If multiple DRX groups are configured with different DRX configurations for power saving, then UE power consumption is reduced, but determining active time becomes complex and may lead to unsynchronized transitions
Solution Approach 1:
The patent divides the DRX configuration into multiple independent DRX groups (first DRX group, second DRX group, etc.), each with its own DRX configuration parameters. This segmentation allows the UE to independently manage active time for different DRX groups, reducing the complexity of determining overall active time while maintaining power saving benefits.
Solution Approach 2:
The patent establishes predetermined rules for determining active time based on uplink transmission status. When uplink transmission is detected, the UE proactively determines active time for the corresponding DRX group before actual downlink monitoring is needed, simplifying the timing determination process and avoiding complex real-time calculations.
2Use of energy by moving object
If DRX groups transition independently to save power, then power consumption is reduced, but interference may occur due to unsynchronized transitions
Solution Approach 1:
The patent implements a feedback mechanism where the UE monitors for downlink transmissions during the determined active time periods. This feedback loop ensures that the network can adjust scheduling to avoid interference during DRX group transitions, as the UE's active time determination is based on actual uplink transmission status and network responses.
Solution Approach 2:
The patent applies different DRX configurations and active time determination rules to different DRX groups based on their specific characteristics and uplink transmission status. This localized approach allows each DRX group to optimize its own power consumption and transition timing without causing interference to other groups, as each group's behavior is tailored to its local conditions.
3Reliability
If BWP switching is performed automatically during RA procedure, then access reliability is improved, but uplink resource management becomes complex
Solution Approach 1:
The patent extracts the BWP switching decision logic from the general uplink resource management process and ties it specifically to Random Access procedure outcomes. By separating this specific condition handling from general resource management, the patent simplifies uplink resource management while maintaining access reliability through automatic BWP switching when RA procedures trigger it.
Data Source
AI summary
Example embodiments of the present disclosure relate to an apparatus, method and computer readable storage medium for determining active time with a plurality of discontinuous reception (DRX) groups. In example embodiments, if first transmission is initiated from a device, at least a first DRX group is selected from a plurality of DRX groups. The plurality of DRX groups is configured for the device and associated with a plurality of DRX configurations. The apparatus is further caused to determine first active time for the first DRX group based on a first DRX configuration of the plurality of DRX configurations associated with the first DRX group. Further, the device is allowed to monitor second transmission to the device in the first active time.