GNB-Controlled RF Sensing Interference Management
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Solution Overview
Problem
Current wireless communication systems, particularly in new radio (NR) and LTE technologies, face challenges in managing interference and conflicts due to the increasing demand for mobile broadband access, which affects the efficiency of radio frequency (RF) sensing.
Innovation Solution
The proposed solution involves a method for wireless communication where a base station (BS) configures user equipment (UE) to perform RF sensing by transmitting an RF sensing signal and measuring its reflections, thereby managing potential interference and conflicts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If RF sensing is performed without network control, then RF sensing can be conducted, but interference and conflicts occur due to unmanaged resource usage
Solution Approach 1:
The network performs preliminary actions by configuring RF sensing parameters, selecting time-frequency resources, and coordinating between sensing and communication operations before actual RF sensing occurs. This advance planning prevents interference by ensuring resources are properly allocated and isolated.
Solution Approach 2:
The system implements feedback mechanisms where the network receives RF sensing results from user equipment and uses this information to adjust communication and sensing configurations. This closed-loop control enables dynamic interference management and optimization of resource allocation based on actual sensing outcomes.
2Productivity
If RF sensing signals share the same frequency band with communication signals, then spectrum efficiency is improved, but interference between sensing and communication occurs
Solution Approach 1:
The system segments time-frequency resources into dedicated sensing resources and communication resources. By dividing the available spectrum and time slots, the network allows both RF sensing and communication to operate simultaneously on the same frequency band without mutual interference, thereby maintaining spectrum efficiency while preventing harmful interactions.
Solution Approach 2:
The network dynamically adjusts resource allocation between sensing and communication based on current system conditions, traffic demands, and sensing priorities. This dynamic management allows flexible sharing of time-frequency resources, optimizing spectrum utilization while preventing interference through real-time coordination.
3Object-generated harmful factors
If the network controls RF sensing configuration, then interference management is improved, but system complexity increases
Solution Approach 1:
The network acts as an intermediary that manages RF sensing configurations, resource allocation, and coordination between sensing and communication operations. By centralizing control functions in the network rather than distributing complexity to user equipment, the system achieves effective interference management while keeping individual device complexity manageable.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach enhances RF sensing capabilities, improves interference management, and supports more efficient communication by allowing the BS to control RF sensing configurations, thereby optimizing system performance.
Implementation Method 1
transmitting an RF sensing signal based on the configuration. The method generally includes performing one or more measurements of one or more reflections of the RF sensing signal
Data Source
AI summary
Certain aspects of the present disclosure provide techniques for radio frequency (RF) sensing. A method that may be performed by a UE generally includes receiving, from a base station (BS), a configuration for the UE to perform RF sensing. The method generally includes transmitting an RF sensing signal based on the configuration. The method generally includes performing one or more measurements of one or more reflections of the RF sensing signal. Certain aspects of the subject matter described in this disclosure can be implemented in a method for wireless communication by a BS. The method generally includes receiving a RF sensing capabilities message from a UE. The method generally includes transmitting, to the UE, a configuration for the UE to perform RF sensing based on the RF sensing capabilities message.