Grant-Free Wireless Device Parameter Configuration
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Solution Overview
Problem
The grant-free transmission technology in Next-Generation Radio (NR) systems faces challenges in setting transmission parameters without resource allocation instructions from the base station, leading to inefficiencies in signaling reduction and parameter setting, which affects transmission efficiency across various use cases.
Innovation Solution
A wireless communication device and method that acquires and sets transmission parameters from a predetermined resource pool, allowing for flexible design and notification of these parameters to terminal devices, enabling efficient communication system performance across different scenarios.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If grant-free transmission technology is used to reduce signaling, then signaling overhead is reduced, but transmission parameter setting becomes difficult
Solution Approach 1:
The base station pre-configures multiple transmission parameter sets and notifies them to terminal devices before grant-free transmission occurs. This preliminary notification allows terminal devices to have transmission parameters ready in advance, eliminating the need for real-time parameter negotiation and maintaining ease of operation while reducing signaling overhead.
Solution Approach 2:
The invention introduces multiple configurable transmission parameter sets (including modulation schemes, coding rates, and resource allocation parameters) that can be selected and adjusted based on different transmission scenarios. This parameter flexibility allows the system to optimize transmission efficiency while maintaining simple grant-free operation.
2Loss of information
If transmission parameters are not provided through signaling, then signaling is reduced, but transmission efficiency deteriorates
Solution Approach 1:
Transmission parameters are notified to terminal devices in advance through preliminary signaling before grant-free transmission begins. This allows terminal devices to configure their transmission settings properly, ensuring high transmission efficiency while minimizing ongoing signaling requirements during actual data transmission.
Solution Approach 2:
Multiple transmission parameter sets are made available with different configurations optimized for various channel conditions and traffic types. Terminal devices can select appropriate parameter sets based on current transmission needs, maintaining high transmission efficiency without requiring continuous parameter negotiation.
3Loss of information
If resources are arbitrarily selected from resource pool, then signaling is reduced, but parameter configuration flexibility is lost
Solution Approach 1:
The base station pre-notifies terminal devices of multiple resource configurations and parameter sets from the resource pool before grant-free transmission. This preliminary provision of configuration options allows terminal devices to select appropriate resources and parameters flexibly without requiring real-time signaling, thus maintaining both signaling reduction and configuration adaptability.
Solution Approach 2:
The invention creates a universal parameter notification mechanism that provides multiple configurable parameter sets applicable to various transmission scenarios. This multi-functional parameter set design allows the same notification mechanism to serve different transmission needs (different modulation schemes, coding rates, resource allocations) without requiring scenario-specific signaling.
Data Source
AI summary
A wireless communication device including an acquisition unit that acquires an information set related to a transmission parameter when transmitting a resource arbitrarily selected from a predetermined resource pool to a transmission target (for example, performing grant-free transmission), and a setting unit that sets the transmission parameter using the information set.