Initial BWP Configuration for Limited-Bandwidth User Equipment
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Solution Overview
Problem
Existing mobile communication technologies do not adequately support UEs with reduced bandwidth capabilities, as the current initial Bandwidth Part (BWP) parameters are unsuitable for UEs with narrow bandwidths.
Innovation Solution
A base station and user equipment are designed to transmit and receive parameters indicating specific BWPs tailored for UEs with limited bandwidth capabilities, including separate parameters for initial downlink and uplink BWPs, allowing for suitable bandwidth allocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a common initial BWP parameter is used for all UEs, then the system is simple to operate, but UEs with limited bandwidth capability cannot access the network properly
Solution Approach 1:
The patent segments the initial BWP parameters into two distinct sets: one for normal UEs and another for UEs with limited bandwidth capability. This segmentation allows each UE type to receive appropriately configured parameters, resolving the contradiction between adaptability and complexity by organizing parameters into targeted groups rather than using a single universal configuration.
Solution Approach 2:
The patent applies local quality by providing different BWP parameter configurations tailored to specific UE bandwidth capabilities. Instead of a uniform approach, the system delivers localized parameter sets matched to each UE's actual bandwidth support, enabling proper network access for both normal and bandwidth-limited devices without overwhelming complexity.
2Adaptability or versatility
If separate parameters for normal and bandwidth-limited UEs are provided, then bandwidth compatibility is improved, but the information transmission overhead increases
Solution Approach 1:
The patent implements a dynamic parameter selection mechanism where the base station determines UE bandwidth capability and selectively transmits appropriate BWP parameters. This dynamic approach allows the system to maintain bandwidth compatibility for all UE types while minimizing information overhead by transmitting only the necessary parameter set for each specific UE, rather than always sending both parameter configurations.
3Productivity
If the initial BWP bandwidth is set for normal UEs, then communication efficiency is maximized, but bandwidth-limited UEs experience access failure
Solution Approach 1:
The patent applies parameter changes by configuring different BWP bandwidth parameters based on UE capability. For normal UEs, the system uses larger bandwidth parameters to maximize communication efficiency. For bandwidth-limited UEs, the system adjusts to smaller bandwidth parameters that ensure successful network access. This parameter adaptation resolves the contradiction by optimizing efficiency for capable devices while ensuring reliability for constrained devices.
Data Source
AI summary
A base station according to an aspect of the present disclosure includes a memory storing a program, and one or more processors configured to execute the program to obtain a System Information Block 1, SIB1, and transmit the SIB1. The SIB1 includes a first parameter indicating a location and a bandwidth of a first initial downlink Bandwidth Part, BWP, and a second parameter indicating a location and a bandwidth of a second initial downlink BWP for a user equipment with a limited bandwidth capability.