Base Station Resource Configuration for NR Latency
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Solution Overview
Problem
In wireless communication technology, particularly in the New Radio (NR) system, the existing resource allocation methods fail to meet the requirements of low-latency and high-reliability services due to the dynamic scheduling always taking precedence over preconfigured grants, resulting in inadequate latency and reliability.
Innovation Solution
A resource configuration method where a base station transmits configuration indication information to a terminal, indicating the priority levels of dynamically-scheduled resources and preconfigured grant resources. This allows the terminal to select the appropriate resource for data transmission based on the indicated priority levels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If dynamic scheduling always takes precedence over preconfigured grant resources, then the base station can maintain control over resource allocation, but low-latency and high-reliability services cannot meet their latency and reliability requirements
Solution Approach 1:
The patent changes the priority parameter between dynamic scheduling and preconfigured grant resources. By introducing a priority indicator that can be configured by the base station, the system allows preconfigured grant resources to have higher priority than dynamic scheduling in certain cases, enabling low-latency services to use preallocated resources without waiting for dynamic scheduling decisions.
Solution Approach 2:
The patent makes the priority relationship between dynamic scheduling and preconfigured grants dynamic rather than fixed. The base station can flexibly adjust the priority configuration based on service requirements, allowing the system to adapt to different latency and reliability needs by dynamically changing which resource type takes precedence.
2Reliability
If dynamic scheduling is used for low-latency services, then the base station maintains resource control, but the processing time and feedback time become too long to meet service requirements
Solution Approach 1:
The patent applies preliminary action by allocating resources in advance through preconfigured grants before data transmission is needed. Low-latency services can immediately use these preallocated resources without waiting for dynamic scheduling processing, thereby reducing processing time and feedback time while maintaining base station control through prior configuration.
3Loss of time
If preconfigured grant resources are used for low-latency services, then latency requirements can be met, but the resources are unavailable when dynamic scheduling is required
Solution Approach 1:
The patent makes the priority relationship dynamic, allowing the base station to configure whether preconfigured grants or dynamic scheduling has higher priority based on current service requirements. This dynamic configuration enables the system to adapt resource allocation to different service types, ensuring both low-latency services can use preconfigured resources and other services can utilize dynamic scheduling when needed.
Data Source
AI summary
The present disclosure provides a resource configuration method, a base station and a terminal. The resource configuration method applied for the base station side includes transmitting configuration indication information to a terminal. The configuration indication information is configured to indicate priority level information about dynamically-scheduled resources and preconfigured grant resources when data transmission is performed by the terminal.