NCR Forwarding Control in RRC Idle and Inactive States
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Solution Overview
Problem
After a Network Controlled Repeater-Mobile Termination (NCR-MT) enters an RRC inactive or idle state, the NCR forwarding unit continues to perform forwarding operations without base station control, leading to reduced performance, invalid forwarding, and interference due to the lack of air interface scheduling.
Innovation Solution
The NCR-MT receives first forwarding configuration information from the network side device while in an RRC connected state, allowing it to control its forwarding behavior in the RRC inactive or idle state based on this configuration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If the NCR-MT enters RRC inactive or idle state to save radio resources, then radio resource usage is improved, but forwarding control capability deteriorates
Solution Approach 1:
The base station sends forwarding configuration information to the NCR-MT before releasing it to RRC inactive or idle state. This preliminary configuration enables the NCR-MT to autonomously perform forwarding operations without continuous base station control, thus saving radio resources while maintaining forwarding capability
Solution Approach 2:
The NCR-MT is configured with forwarding parameters and autonomously performs forwarding operations based on pre-configured information when in RRC inactive or idle state. This self-service mechanism eliminates the need for continuous base station control, reducing radio resource consumption while maintaining forwarding functionality
2Duration of action of stationary object
If the NCR-FWD continues forwarding without base station control, then forwarding continuity is improved, but forwarding performance deteriorates
Solution Approach 1:
The base station provides forwarding configuration information including parameters such as reference signal configuration, resource allocation, and forwarding behavior settings before the NCR-MT enters inactive or idle state. This preliminary configuration ensures that the NCR-FWD can maintain forwarding operations with optimized performance without continuous base station control
Data Source
AI summary
This application discloses a forwarding control method, and an information transmission method and apparatus. The forwarding control method includes: receiving, by a layer-1 forwarding node, first forwarding configuration information from a network side device when a mobile termination module (MT) of the later-1 forwarding node is in a radio resource control (RRC) connected state; and performing, by the layer-1 forwarding node, forwarding based on the first forwarding configuration information when the MT of the layer-1 forwarding node enters a first state, where the first states includes an RRC idle state or an RRC inactive state.