Bandwidth Part Resource Block Offset Hopping for NR-U Light
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Solution Overview
Problem
Current wireless communication technologies, such as LTE and NR, face challenges in maintaining reliable initial signaling in unlicensed or shared spectrum due to interference, particularly for NR-U Light configurations, which can lead to interruptions and degraded network performance.
Innovation Solution
Implementing frequency hopping patterns and configurations for initial signaling, including determining frequency hopping patterns and channels based on NR-U Light configurations, to minimize interference and ensure resilient communication by hopping between bandwidth parts and resource block offsets.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If frequency hopping is implemented for initial signaling in NR-U Light configurations, then resilience against interference is improved, but device complexity increases
Solution Approach 1:
The patent applies parameter changes by dynamically adjusting frequency hopping patterns, bandwidth part configurations, and resource block offsets based on interference conditions. The base station modifies transmission parameters such as hopping frequency, channel selection, and resource allocation to maintain reliable signaling while adapting to changing spectral environments in unlicensed bands.
Solution Approach 2:
The patent implements dynamics through adaptive frequency hopping where the hopping pattern and channel selection are not fixed but dynamically adjusted based on interference measurements and channel conditions. The system transitions between different bandwidth parts and frequency resources in response to real-time spectral availability, making the initial signaling process resilient to interference while maintaining operational flexibility.
2Reliability
If frequency hopping patterns are used to manage interference in unlicensed spectrum, then communication reliability is improved, but signal transmission time increases
Solution Approach 1:
The patent applies preliminary action by pre-configuring frequency hopping patterns, bandwidth part structures, and resource block offset tables before actual data transmission begins. The base station and user equipment establish the hopping sequence and frequency resources in advance during system initialization, allowing rapid execution of the hopping pattern without real-time decision delays, thus reducing transmission time while maintaining reliability.
3Reliability
If bandwidth part hopping is implemented for resource block offset management, then interference resilience is improved, but system complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the total bandwidth into multiple bandwidth parts (BWPs), each with distinct resource block allocations and frequency characteristics. This segmentation allows the system to switch between different BWP segments based on interference conditions, managing complexity by organizing resources into manageable, pre-defined blocks rather than handling the entire spectrum as a single resource pool.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may determine that a first signal is associated with a New Radio Unlicensed (NR-U) Light configuration; determine a frequency hopping (FH) pattern and a set of FH channels for a second signal based at least in part on the determination that the first signal is associated with the NR-U Light configuration; and receive the second signal based at least in part on the FH pattern and the set of FH channels. Numerous other aspects are provided.