Initial BWP Configuration for NR-Light Terminal Compatibility
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Solution Overview
Problem
The introduction of NR-light type terminal devices in NR R17 requires addressing compatibility issues for access to NR cells without affecting traditional terminal devices, considering their lower bandwidth and capability requirements, especially in scenarios like industrial wireless sensors, video surveillance, and wearables, which demand specific BWP configurations for efficient communication.
Innovation Solution
The network device configures initial BWP configuration information associated with terminal types and capabilities, allowing NR-light type devices to camp on suitable BWPs, ensuring compatibility and expanding cell capacity by defining different BWP configurations for various terminal types, including NR-light types, through mechanisms like SIB broadcasting and RNTI usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single initial BWP configuration is used for all terminal types, then device complexity is reduced, but adaptability to different terminal capabilities deteriorates
Solution Approach 1:
The patent divides the initial BWP configuration into multiple separate configuration sets, with each set corresponding to a specific terminal type (e.g., first initial BWP configuration for first terminal types, second initial BWP configuration for second terminal types). This segmentation allows the system to provide tailored configurations for different terminal capabilities while maintaining manageable complexity through structured organization.
Solution Approach 2:
The patent applies local quality by providing different initial BWP configuration parameters (such as bandwidth, subcarrier spacing, cyclic prefix) specifically optimized for each terminal type. Each terminal type receives configurations locally optimized for its capabilities rather than a universal configuration, improving adaptability while keeping individual configurations relatively simple.
2Adaptability or versatility
If multiple initial BWP configurations are provided for different terminal types, then adaptability to terminal capabilities is improved, but device complexity increases
Solution Approach 1:
The patent implements universality by establishing a unified initial BWP configuration mechanism that serves multiple terminal types through a single standardized procedure. The network device broadcasts available initial BWP configurations, and terminal devices autonomously select appropriate configurations based on their types, creating a universal access method that accommodates diversity without requiring terminal-specific dedicated procedures.
Solution Approach 2:
The patent applies self-service by enabling terminal devices to autonomously determine and select their own initial BWP configurations based on their terminal types. Rather than requiring network-side manual configuration or complex negotiation, terminal devices independently identify suitable configurations from broadcast information and proceed with registration, reducing overall system complexity while maintaining high adaptability.
3Productivity
If NR-light type terminal devices use the same BWP configuration as traditional devices, then device complexity is reduced, but communication efficiency deteriorates
Solution Approach 1:
The patent applies dynamics by enabling flexible BWP configuration selection that adapts to terminal capabilities. The system dynamically assigns different initial BWP configurations to different terminal types based on their capabilities, allowing NR-light type devices to use optimized configurations for their specific needs rather than forcing uniform configurations. This dynamic adaptation improves communication efficiency for each terminal type while maintaining manageable complexity through automated selection processes.
Data Source
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AI summary
Provided are a BWP configuration method and apparatus, a terminal device, and a network device. The method comprises : a terminal device receiving first configuration information sent by a network device, wherein the first configuration information comprises a plurality of pieces of initial BWP configuration information, and each piece of initial BWP configuration information in the plurality of pieces of initial BWP configuration information is associated with one terminal type and/or terminal capability; and the terminal device selecting first initial BWP configuration information from among the plurality of pieces of initial BWP configuration information on the basis of the first configuration information, and residing on a first initial BWP on the basis of the first initial BWP.