Wireless Sensing Resource Allocation During UL-DL Guard Time
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Solution Overview
Problem
Conventional wireless communication systems face inefficiencies in utilizing guard times between uplink and downlink transmissions for sensing operations, leading to underutilization of available resources.
Innovation Solution
Allocate resources for sensing based on the guard time between uplink and downlink transmissions, allowing for the efficient use of time and frequency resources within and outside the guard time for sensing operations, including the use of radar techniques and radio signals for environmental detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If guard time is allocated between uplink and downlink transmissions, then communication system stability is improved, but resource utilization is worsened
Solution Approach 1:
The guard time period is made multi-functional by enabling sensing operations to be performed during this traditionally idle interval. The same time resources allocated for guard time between uplink and downlink transmissions are simultaneously utilized for radar-based sensing, allowing the system to extract environmental information without compromising communication stability or requiring additional dedicated sensing resources.
2Adaptability or versatility
If dedicated sensing resources are allocated, then sensing capability is improved, but device complexity is worsened
Solution Approach 1:
Existing communication radio units and signal processing capabilities are made universal by enabling them to perform both communication and sensing functions. The device utilizes its existing transmit and receive capabilities to conduct radar sensing operations during guard time, eliminating the need for separate dedicated sensing hardware and reducing overall device complexity.
Solution Approach 2:
The communication system's own resources (radio units, signal processing chains) are utilized to perform sensing functions without requiring external dedicated sensing equipment. The system serves its sensing needs by repurposing its existing communication infrastructure during guard time intervals.
Data Source
AI summary
An apparatus for a device for a wireless communication system, the apparatus including at least one processor, and at least one memory storing instructions that, when executed by the at least one processor, cause the device to: allocate resources for sensing based on a guard time between resources for downlink and uplink transmissions, perform sensing using the resources allocated for the sensing.