Dynamic Scheduling Delay for 5G NR Resource Allocation
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Solution Overview
Problem
The existing resource scheduling methods for machine type communication (MTC) in 5G NR systems face inefficiencies due to a fixed scheduling delay between the physical downlink shared channel and the physical downlink control channel, leading to prolonged transmission times, increased power consumption, and reduced transmission rates.
Innovation Solution
A method and apparatus that determine and adjust the scheduling delay based on various factors such as the number of unavailable subframes and hybrid automatic repeat request (HARQ) process numbers, allowing for flexible scheduling by selecting from multiple possible delays, thereby optimizing resource allocation and reducing power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a fixed scheduling delay is used between physical downlink shared channel and physical downlink control channel, then resource allocation is simplified, but transmission time is prolonged and transmission rate is reduced
Solution Approach 1:
The patent applies dynamics by making the scheduling delay configurable rather than fixed. The network device can dynamically adjust the scheduling delay parameter based on service requirements, allowing the system to adapt between different delay values (e.g., shorter delay for high-rate services, longer delay for power-constrained services) thereby resolving the contradiction between simplified allocation and transmission rate
Solution Approach 2:
The patent changes the scheduling delay parameter from a fixed value to a configurable parameter. By allowing the network device to configure different scheduling delay values through signaling to the terminal, the system can optimize transmission rate by selecting appropriate delay parameters for different service scenarios, thus resolving the contradiction between simplicity and performance
2Device complexity
If a fixed scheduling delay is used between physical downlink shared channel and physical downlink control channel, then scheduling is simplified, but power consumption increases
Solution Approach 1:
The patent makes the scheduling delay dynamic and configurable, allowing the network to select appropriate delay values based on terminal power status and service requirements. This dynamic adjustment enables power optimization by configuring longer delays for power-constrained terminals, resolving the contradiction between scheduling simplicity and power consumption
Solution Approach 2:
By changing the scheduling delay from a fixed parameter to a configurable parameter, the system can optimize power consumption by selecting appropriate delay values. The network device can configure different scheduling delays for different terminals based on their power consumption characteristics, thus resolving the contradiction between simplicity and energy efficiency
3Productivity
If multiple scheduling delay options are provided, then transmission efficiency is improved, but system complexity increases
Solution Approach 1:
The patent implements multiple scheduling delay options through dynamic configuration by the network device. The network can select from multiple delay values and configure the appropriate one to terminals based on service requirements, achieving improved transmission efficiency while managing system complexity through centralized control rather than distributed complexity
Solution Approach 2:
The patent provides multiple scheduling delay parameter options that the network device can configure based on different service scenarios. By allowing parameter selection and configuration rather than hardcoding multiple systems, the patent achieves improved transmission efficiency while keeping system complexity manageable through parameter-based flexibility
Data Source
AI summary
A resource scheduling method, the method includes: determining a scheduling delay between a physical downlink shared channel and a physical downlink control channel, where the physical downlink shared channel and the physical downlink control channel correspond to at least two different possible scheduling delays; and transmitting the physical downlink control channel, and transmitting the physical downlink shared channel based on the scheduling delay.