5G Uplink Reference Signaling With Dynamic Bandwidth Part Allocation
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently transmitting and receiving reference signals for various services in mobile communication systems, particularly in 5G networks, due to the need to support diverse services such as enhanced mobile broadband, massive machine type communication, and ultra-reliable low-latency communication, which require different transmission/reception techniques and parameters.
Innovation Solution
A method and apparatus for transmitting and receiving reference signals are developed, involving bandwidth part (BWP) technology to dynamically adjust frequency bands for efficient uplink and downlink operations, including configuration of BWP for UEs, management of control and data channels, and utilization of synchronization signals, to support multiple services with varying requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If bandwidth part (BWP) technology is used to dynamically adjust frequency bands for different services, then resource allocation efficiency and energy consumption are improved, but system complexity and configuration management difficulty increase
Solution Approach 1:
The patent divides the overall bandwidth into multiple bandwidth parts (BWPs), each configured for specific services or service types. This segmentation allows different services (e.g., eMBB, mMTC, URLLC) to operate in dedicated frequency ranges with optimized parameters, improving resource allocation efficiency while maintaining manageable system complexity through structured division.
Solution Approach 2:
The patent implements dynamic BWP configuration and switching mechanisms that allow the system to adapt frequency band allocation in real-time based on service requirements and traffic conditions. This dynamic adjustment optimizes resource utilization across different services while the patent manages the associated complexity through automated configuration procedures.
2Adaptability or versatility
If multiple services with varying requirements are supported simultaneously, then service versatility and network capability are improved, but transmission efficiency and resource utilization deteriorate
Solution Approach 1:
The patent applies local quality by configuring different bandwidth parts with service-specific parameters optimized for their intended用途. Each BWP can have tailored subcarrier spacing, cyclic prefix lengths, and resource allocation schemes matched to its service type (e.g., narrow subcarrier spacing for coverage-enhanced services, wide spacing for low-latency services), ensuring optimal transmission efficiency within each service domain while maintaining overall system versatility.
3Use of energy by moving object
If bandwidth parts are configured for different services, then energy consumption is reduced through selective activation, but configuration management complexity and overhead increase
Solution Approach 1:
The patent implements preliminary configuration of multiple bandwidth parts with pre-defined service-specific parameters before actual service deployment. This advance preparation allows the network to quickly activate or deactivate specific BWPs based on service requirements without time-consuming reconfiguration, reducing energy consumption by keeping only necessary BWPs active while simplifying real-time management through pre-planned configurations.
Data Source
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AI summary
The present disclosure relates to a method by a base station and a terminal in a wireless communication system. A method by a terminal according to an embodiment may comprise the steps of: receiving, from a base station, bandwidth part configuration information and higher-layer signaling including uplink rate matching configuration information or uplink puncturing configuration information; receiving, from the base station, downlink control information for scheduling transmission of uplink data; identifying a resource for transmission of the uplink data on the basis of the uplink rate matching configuration information or uplink puncturing configuration information, and transmitting the uplink data to the base station through the identified resource.