Wireless Terminal Resource Configuration in Unlicensed Bands
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently utilizing non-licensed spectrums for mobile data transmission due to coexistence issues with existing wireless communication devices, limiting data rates and throughput.
Innovation Solution
The implementation of an electronic device with processing circuitry that configures and manages resource allocation in non-licensed spectrums using radio resource control (RRC) and physical layer signaling, allowing for flexible resource configuration and repetitive transmission of transport blocks to enhance transmission efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If mobile communications operate on licensed spectrums, then communication reliability is maintained, but mobile data rates and throughput are limited
Solution Approach 1:
The patent combines licensed and unlicensed spectrum operations into a unified LAA system, allowing mobile communications to simultaneously utilize both spectrum types. The base station schedules uplink transmissions across both licensed and unlicensed carriers, merging the reliability of licensed spectra with the capacity expansion of unlicensed spectra to achieve higher data rates and throughput.
Solution Approach 2:
The system dynamically adapts resource allocation between licensed and unlicensed spectra based on channel conditions, traffic demands, and interference levels. The base station can flexibly adjust the number of unlicensed carriers, modulation schemes, and power distribution in real-time, transforming the static spectrum allocation into a dynamic resource management system.
2Productivity
If unlicensed spectrums are used to increase mobile data rates, then throughput is improved, but coexistence issues with existing wireless communication devices occur
Solution Approach 1:
The patent introduces an LBT (Listen Before Talk) mechanism as an intermediary protocol for unlicensed spectrum access. Before transmitting on unlicensed carriers, devices perform channel sensing to detect occupancy by other systems (e.g., Wi-Fi). This mediator protocol enables fair coexistence by allowing unlicensed spectrum sharing without disrupting existing wireless communications, thereby maintaining reliability while improving throughput.
Solution Approach 2:
The system dynamically adjusts transmission parameters such as power spectral density, modulation order, and resource block allocation based on detected interference levels from other wireless systems. When coexistence conflicts are detected, the base station modifies these parameters to reduce interference and ensure fair spectrum sharing, thereby maintaining reliable operation across different wireless systems.
3Measurement precision
If resource configuration information is transmitted using RRC signaling, then configuration accuracy is improved, but signaling overhead and delay increase
Solution Approach 1:
The patent segments resource configuration information into two parts: semi-static parameters configured via RRC signaling for accuracy, and dynamic parameters transmitted via physical layer signaling (e.g., DCI format) for speed. This segmentation allows critical resource allocation details to be communicated quickly through physical layer messages while maintaining the precision benefits of RRC-configured parameters, thereby reducing overall signaling delay without sacrificing configuration accuracy.
Data Source
AI summary
The present disclosure relates to an electronic device for a wireless communication system, and a method and a storage medium. Described are various embodiments concerning resource configuration, resources access, and sending control. In one embodiment, an electronic device for a terminal side in a wireless communication system comprises a processing circuit. The processing circuit is configured to receive resource configuration information by means of at least one of radio resource control (RRC) signaling and physical layer signaling, wherein the resource configuration information indicates a resource allocated in an unlicensed band for the terminal to perform uplink transmission. The resource comprises one or more resources, and the resource configuration information comprising information of one or more offset points indicating positions of the one or more resources.