NCR Configured Grants for Synchronized Uplink Forwarding
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Solution Overview
Problem
Current wireless communication systems face limitations in flexibility and efficiency, particularly in managing semi-static uplink transmissions for network-controlled repeaters (NCRs), as existing methods do not adequately define parameters for configured grants, leading to inefficiencies in resource allocation and signal forwarding.
Innovation Solution
The implementation of network-controlled repeater (NCR) side information and configurations for semi-static UL transmissions, including separate configured grants for NCRs, which involve defining parameters such as time domain information, frequency domain information, and beam indication to manage UL resources on access and backhaul links, ensuring synchronized and efficient signal forwarding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If existing configured grant methods are used for NCRs, then device compatibility is maintained, but flexibility and efficiency in managing semi-static UL transmissions are limited
Solution Approach 1:
The patent segments the configured grant parameters into separate, NCR-specific parameter sets that are distinct from traditional UE-configured grant parameters. This includes separate time domain information, frequency domain information, and beam indication parameters specifically for NCR operations, allowing independent optimization without affecting existing UE functionality.
Solution Approach 2:
The patent introduces dynamic parameter configurations for NCRs, where parameters such as time domain information, frequency domain information, and beam indications can be dynamically adjusted based on network conditions and NCR capabilities, enabling flexible adaptation to varying transmission requirements.
2Productivity
If separate configured grants for NCRs are implemented, then efficiency in resource allocation is improved, but system complexity increases
Solution Approach 1:
The patent introduces an intermediary configuration mechanism where the gNB acts as a mediator that receives UE configured grant parameters and automatically generates corresponding NCR-specific parameters. This intermediary process simplifies the configuration management by centralizing the parameter generation logic in the network side, reducing the complexity burden on UEs while maintaining efficient resource allocation.
3Area of stationary object
If synchronized signal forwarding is implemented, then coverage is improved, but noise amplification becomes a concern
Solution Approach 1:
The patent applies local quality optimization by configuring NCRs with specific beam indications and directional parameters that focus signal forwarding in targeted directions rather than omnidirectional amplification. This allows coverage extension in specific areas while minimizing noise amplification in other directions, achieving selective signal enhancement.
Data Source
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AI summary
A network controlled repeater (NCR) is described. The NCR includes receiving circuitry configured to receive a radio resource control (RRC) configuration from a gNodeB (gNB) on a configured grant (CG), including resource allocation with beam indication, an uplink (UL) forwarding delay information and an NCR configured scheduling - radio network temporary identifier (CS-RNTI).