Aperiodic Uplink Grant Scheduling for Wireless Resource Efficiency
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Solution Overview
Problem
Current semi-persistent scheduling mechanisms in wireless communication systems provide periodic uplink grants, which are inefficient for applications with non-constant or low-quality communication needs, such as background applications, leading to suboptimal resource allocation and increased power consumption.
Innovation Solution
Implementing aperiodic uplink grant scheduling, where User Equipment (UE) devices receive or automatically initiate communications based on non-uniformly timed grants determined by the base station using information provided by the UE, such as expected traffic patterns and power preferences, allowing for flexible and efficient resource allocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If periodic uplink grants are provided to UE devices, then resource allocation is simplified and scheduling is easier to manage, but resource allocation efficiency deteriorates for applications with non-constant traffic patterns and power consumption increases
Solution Approach 1:
The patent applies dynamics by transitioning from static periodic scheduling to dynamic aperiodic scheduling. The base station determines uplink grant timing adaptively based on UE-provided traffic pattern information, allowing the scheduling to adjust to actual application needs rather than following a fixed periodic pattern. This resolves the contradiction by making the system operationally simple through automation while achieving high resource efficiency through adaptability.
Solution Approach 2:
The patent changes the timing parameter of uplink grants from fixed periodic intervals to variable aperiodic intervals. By modifying the time parameter based on application category and traffic patterns, the system achieves efficient resource allocation for different application types while maintaining simplified scheduling through base station control. This parameter change enables the system to adapt to varying traffic demands without complex UE-side scheduling decisions.
2Stability of the object's composition
If periodic uplink grants are provided to UE devices, then scheduling is more predictable and manageable, but power consumption increases for applications that do not require constant communication
Solution Approach 1:
The patent applies periodic action selectively by using periodic scheduling only when appropriate for the application type, and aperiodic scheduling for applications with bursty or unpredictable traffic patterns. The base station determines the appropriate scheduling type based on application category information provided by the UE, enabling power-efficient non-periodic scheduling for background applications while maintaining predictable periodic scheduling for real-time applications.
Solution Approach 2:
The patent implements self-service by having the UE automatically provide traffic pattern information and application category data to the base station, enabling the network to autonomously determine the optimal scheduling approach. This eliminates the need for continuous UE power consumption for scheduling requests while allowing the base station to make informed decisions about grant timing based on UE-provided characteristics.
3Productivity
If aperiodic uplink grant scheduling is implemented, then resource allocation efficiency improves for variable traffic patterns, but scheduling complexity increases
Solution Approach 1:
The patent introduces an intermediary mechanism where the UE provides structured traffic pattern information and application category data to the base station. This intermediary information exchange simplifies the overall system by enabling the base station to make informed aperiodic scheduling decisions without requiring complex real-time negotiations. The standardized information format acts as a mediator that reduces scheduling complexity while achieving high resource efficiency.
4Quantity of substance
If uplink grants are issued at non-uniform intervals, then bandwidth requirements are reduced for applications with bursty traffic, but scheduling precision and timing control become more difficult
Solution Approach 1:
The patent applies preliminary action by having the UE provide traffic pattern information and application category data in advance, enabling the base station to pre-determine optimal grant timing intervals. This preliminary information exchange allows the base station to issue aperiodic grants with precise timing that matches actual traffic needs, reducing bandwidth requirements while maintaining scheduling precision through advance planning rather than reactive decisions.
Data Source
AI summary
Embodiments described herein relate to an apparatus, system, and method for providing aperiodic uplink grants to a UE for aperiodic communications from the UE to a base station. In some embodiments, the UE may be configured to communicate information to the base station, which may be useable by the base station to determine an uplink grant schedule for subsequent communications between the base station and the UE. This uplink grant schedule may be aperiodic, i.e., the uplink grants may be issued at non-uniform intervals of time. The UE may receive the uplink grants from the base station according to the uplink grant schedule. The UE may transmit uplink communications to the base station in response to the received uplink grants.