Wireless Guard Time Sensing for Uplink-Downlink Resource Allocation
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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
Allocating resources for sensing based on guard times between uplink and downlink transmissions, allowing for the efficient use of these periods for sensing tasks, including the use of radio signals and radar techniques to detect environmental characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If guard time is allocated for traditional communication purposes, then communication reliability is maintained, but sensing functionality is lost during this period
Solution Approach 1:
The guard time period is designed to serve dual purposes: traditional communication functions and sensing functions. The system allocates resources within the guard time for sensing operations while maintaining communication reliability, thereby achieving multi-functionality in what was previously a single-purpose time slot.
Solution Approach 2:
The system dynamically adjusts the guard time allocation based on communication traffic conditions and sensing requirements. When communication traffic is low, more guard time is allocated to sensing; when communication traffic is high, the allocation is adjusted to maintain communication reliability, enabling adaptive resource management.
2Productivity
If sensing resources are allocated during guard time, then resource utilization efficiency is improved, but communication interference may increase
Solution Approach 1:
The guard time is segmented into different resource blocks that can be independently allocated for sensing or communication purposes. This segmentation allows the system to partition the time resources and allocate specific portions for sensing operations while keeping other portions available for communication, thereby reducing interference.
Solution Approach 2:
The system introduces an intermediary resource allocation mechanism that mediates between sensing and communication requirements. This intermediary layer manages the resource sharing, ensuring that sensing operations during guard time do not cause excessive communication interference by coordinating and scheduling transmissions appropriately.
3Measurement precision
If complete guard time is used for sensing, then sensing accuracy is improved, but communication flexibility is reduced
Solution Approach 1:
Instead of requiring complete guard time allocation for sensing, the system applies partial action by allocating only the necessary portion of guard time for sensing based on actual sensing requirements. This partial allocation maintains sufficient sensing accuracy while preserving communication flexibility and adaptability for other purposes.
Data Source
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AI summary
An apparatus for a device for a wireless communication system, the apparatus comprising means for causing 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.