Wireless Resource Scheduling for Reduced UE Power Consumption
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Solution Overview
Problem
In conventional wireless cellular networks, user equipment (UE) performs frequent blind detection on the physical downlink control channel (PDCCH) in each subframe, leading to high power consumption and reduced battery life.
Innovation Solution
A resource scheduling method that divides the available time-frequency resource range into pre-scheduling and dynamic scheduling resource ranges, allowing the UE to perform data reception or sending only when allocated resources are indicated, thereby reducing unnecessary control signaling detection and entering a sleep mode when no resources are allocated.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the UE performs blind detection on PDCCH in each subframe to obtain scheduling information, then the scheduling responsiveness is improved, but the power consumption increases and battery life is reduced
Solution Approach 1:
The patent segments the available time-frequency resources into pre-scheduling resource range and dynamic scheduling resource range. The UE performs blind detection only in the pre-scheduling resource range based on pre-scheduling information, rather than scanning all possible resources. This segmentation reduces the detection burden while maintaining scheduling responsiveness.
Solution Approach 2:
The patent implements preliminary action by providing pre-scheduling information in advance that indicates the resource range where scheduling may occur. The UE uses this advance information to limit its blind detection to a specific pre-scheduling resource range, avoiding unnecessary detection in other resource ranges and thereby reducing power consumption.
2Adaptability or versatility
If the UE performs blind detection on all available resources in each subframe, then the resource allocation flexibility is improved, but the device complexity increases
Solution Approach 1:
The patent divides the resource space into pre-scheduling resource range and dynamic scheduling resource range. The UE performs blind detection only in the pre-scheduling resource range based on pre-scheduling information, significantly reducing the number of detection operations required while preserving the ability to handle both periodic and dynamic scheduling scenarios.
Solution Approach 2:
The patent applies partial action by having the UE perform blind detection only in the pre-scheduling resource range rather than all available resources. The pre-scheduling information provides sufficient guidance for the UE to limit its detection scope, reducing computational complexity while maintaining adequate scheduling flexibility for most scenarios.
Data Source
AI summary
Embodiments of the present invention provide a resource scheduling method. The method includes: receiving, by a scheduled device, pre-scheduling information and dynamic scheduling information sent by a scheduling device, and when the pre-scheduling information indicates that the scheduling device allocates a radio resource to the scheduled device in a pre-scheduling resource range, performing data reception or sending or control signaling detection on the radio resource indicated by the pre-scheduling information; and when the dynamic scheduling information indicates that the scheduling device allocates a radio resource to the scheduled device in a dynamic scheduling resource range, performing control signaling detection on a resource in the dynamic scheduling resource range.