Dormant Secondary Cell Group Scheduling for Resource Efficiency

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Solution Overview

Problem

Existing wireless communication systems face inefficiencies in resource allocation and management, particularly in scenarios involving dormant secondary cell groups, leading to suboptimal utilization of resources and increased interference.

Innovation Solution

Implementing configured grant and semi-persistent scheduling techniques for dormant secondary cell groups to optimize resource allocation and reduce inefficiencies by allowing for dynamic adjustments and statistical multiplexing of resources among UEs.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Use of energy by moving object

If dormant secondary cell groups are used to save power, then energy consumption is reduced, but resource utilization efficiency deteriorates

Engineering Contradiction:

Improvepower consumptionVSAvoidresource utilization efficiency

Core Design Contradiction:

Use of energy by moving objectVSProductivity

Solution Approach 1:

The patent implements dynamic resource allocation by transitioning from static dormant state to dynamic configured grant and semi-persistent scheduling. The system dynamically adjusts resource allocation based on traffic conditions, allowing UEs to access pre-configured resources without full activation of secondary cell groups, thus maintaining low power consumption while improving resource utilization efficiency.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent applies preliminary action by pre-configuring grant resources and semi-persistent scheduling parameters before actual data transmission. This allows UEs to have immediate access to allocated resources when needed, eliminating the need for full cell group activation and subsequent resource allocation procedures, thereby improving resource utilization while keeping power consumption low.

Inventive Principle:

Principle #10Preliminary action

2Adaptability or versatility

If traditional scheduling methods are used for dormant cell groups, then resource allocation flexibility is maintained, but interference increases and efficiency decreases

Engineering Contradiction:

Improveresource allocation flexibilityVSAvoidinterference

Core Design Contradiction:

Adaptability or versatilityVSObject-generated harmful factors

Solution Approach 1:

The patent extracts the essential scheduling functionality from the dormant cell group context by implementing configured grant and semi-persistent scheduling mechanisms. This allows resource allocation to proceed independently of full cell activation, taking out the harmful interference aspect while preserving the useful resource allocation flexibility. UEs can be scheduled on dormant cell groups without causing excessive interference to other users.

Inventive Principle:

Principle #2Taking out (Extraction)

Data Source

PatentEP4205480B1Configured grant or semi-persistent scheduling for dormant secondary cell group

Publication Date: 2025.10.29 QUALCOMM INC

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AI summary

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive an indication that a secondary cell group (SCG) is to enter an SCG dormant state and an indication for using one or more of configured grant (CG) on an uplink or semi-persistent scheduling (SPS) on a downlink for communication with a secondary node (SN) of the SCG during the SCG dormant state. The UE may communicate with the SN of the SCG during the SCG dormant state using the one or more of CG or SPS. Numerous other aspects are provided.