Terminal Apparatus BWP Configuration via SIB1 Timing
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Solution Overview
Problem
Current radio communication systems for fifth-generation cellular networks face challenges in efficiently managing frequency locations and bandwidths for initial downlink and uplink BWP configurations, particularly in scenarios requiring reduced capability devices like sensor networks and IoT applications, where traditional methods are costly and inefficient.
Innovation Solution
The system includes a terminal apparatus and base station apparatus that utilize a physical downlink control channel (PDCCH) and system information block (SIB1) to specify the frequency location and bandwidth of an initial downlink BWP, with the SIB1 containing information for determining the timing of these parameters, enabling efficient communication by aligning frequency location and bandwidth usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If traditional methods are used for BWP configuration, then communication reliability is maintained, but device cost and complexity increase
Solution Approach 1:
The patent applies parameter changes by introducing a timing indication parameter in SIB1 that dynamically determines when the initial downlink BWP switches to the second frequency location. This allows reduced capability devices to flexibly adjust their operational parameters based on network conditions, lowering device cost while maintaining communication reliability through adaptive configuration rather than fixed hardware designs
2Productivity
If fixed frequency location and bandwidth are used for initial downlink BWP, then device complexity is reduced, but communication efficiency decreases
Solution Approach 1:
The patent implements dynamics by transitioning from fixed frequency location to dynamic frequency switching. The timing indication parameter enables the initial downlink BWP to switch between first and second frequency locations based on communication needs, improving productivity through adaptive resource allocation while keeping device complexity manageable through standardized switching protocols
3Adaptability or versatility
If reduced capability devices are supported, then system versatility improves, but resource allocation efficiency decreases
Solution Approach 1:
The patent applies local quality by providing frequency location specific configurations tailored to different device capabilities. The timing indication parameter allows reduced capability devices to access appropriate frequency resources with optimized parameters for their capabilities, improving versatility while maintaining resource allocation efficiency through targeted configuration rather than uniform treatment
Data Source
AI summary
A terminal apparatus receives a PDCCH in a CORESET 0 and receives a SIB1 scheduled by the PDCCH, and specifies a frequency location and a bandwidth of an initial downlink BWP, wherein the SIB1 includes first information indicating a first frequency location and a first bandwidth, and second information, and the second information is used to determine a timing at which the first frequency location and the first bandwidth are used as the frequency location and the bandwidth of the initial downlink BWP.