BWP Subband Configuration for Accurate Wireless Transmission and Reception
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Solution Overview
Problem
Existing wireless communication systems face challenges in accurately and efficiently transmitting and receiving signals, particularly in next-generation radio access technologies like NR, which require improved mobile broadband communication with considerations for reliability and latency.
Innovation Solution
The method involves configuring subbands within a bandwidth part (BWP) based on specific granularities determined by an offset and system bandwidth size, aligning subband boundaries with resource block groups, and optimizing subband configurations for full-duplex operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If subbands are configured with fine granularity to improve signal transmission accuracy, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The bandwidth part is divided into multiple subbands with configurable granularity. Each subband can be independently configured with specific offset and bandwidth size parameters, allowing precise control over signal transmission in different frequency regions while maintaining manageable complexity through modular configuration
Solution Approach 2:
Different subbands within the bandwidth part can have different configuration parameters (offset, bandwidth size, granularity). This allows optimization of signal transmission accuracy in specific frequency regions where it is most needed, while using coarser granularity in other regions to reduce overall device complexity
2Productivity
If subband configuration parameters are increased to improve bandwidth utilization, then productivity is improved, but device complexity increases
Solution Approach 1:
The subband configuration mechanism serves multiple functions: it enables flexible bandwidth utilization optimization, supports different granularity levels for various service types, and provides a unified framework for both uplink and downlink configurations. The same configuration parameters (offset, bandwidth size) are used across different scenarios, reducing the need for separate complex configuration sets
Solution Approach 2:
The system allows dynamic adjustment of configuration parameters including offset, bandwidth size, and granularity. These parameters can be modified based on traffic conditions, service requirements, and channel characteristics, enabling optimal bandwidth utilization without requiring complex fixed configurations for each scenario
3Ease of operation
If subband granularity is reduced to reduce device complexity, then ease of operation is improved, but measurement precision deteriorates
Solution Approach 1:
The subband granularity is not fixed but can be dynamically configured based on operational requirements. The system supports multiple granularity levels that can be selected and adjusted as needed, providing a balance between configuration simplicity and signal reception accuracy for different operating conditions
Data Source
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AI summary
In a wireless communication system according to various embodiments, a UE receives, from a base station, first configuration information for configuring a bandwidth part (BWP), receives, from the base station, an offset for configuring at least one sub-band within the BWP and second configuration information including information about the bandwidth size, and configures at least one sub-band on the basis of the second configuration information, wherein the at least one sub-band can be configured on the basis of a specific granularity determined according to the offset, the bandwidth size and a system bandwidth size.