Interlaced Resource Pool Layout for Sidelink Sensing Bandwidth
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Solution Overview
Problem
Existing resource pool configuration methods for sidelink communication and sensing in wireless sensing systems lead to reduced system capacity due to the need for large bandwidth or unambiguous Doppler estimation range, impacting communication performance.
Innovation Solution
Configuring resource pools with interlaced structures in the frequency domain for positioning and sensing, ensuring wide bandwidth for distance estimation and large unambiguous Doppler estimation range, while allowing communication resources to occupy the remaining frequency domain.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If sensing resource pools are configured with large bandwidth for distance estimation resolution, then sensing precision is improved, but communication system capacity deteriorates
Solution Approach 1:
The frequency domain resources are segmented into multiple interlaced structures where sensing and communication resources are divided into separate interleaved sets. This allows sensing to obtain sufficient bandwidth for distance estimation while communication can utilize the remaining frequency resources, resolving the contradiction between sensing precision and communication capacity
Solution Approach 2:
The patent transitions from traditional time-division or simple frequency-division multiplexing to an interlaced frequency structure that creates additional resource dimensions. By organizing resources in interleaved patterns across frequency, the system achieves both wide sensing bandwidth and adequate communication capacity simultaneously
2Measurement precision
If sensing resource pools are configured with small repetition period for large unambiguous Doppler estimation range, then velocity estimation capability is improved, but communication system capacity deteriorates
Solution Approach 1:
The time-frequency resources are segmented into interlaced structures where sensing resources with small repetition periods for Doppler estimation are separated from communication resources. This segmentation allows the sensing function to achieve large unambiguous Doppler estimation range while communication can utilize other time-frequency resources
Solution Approach 2:
The patent introduces an interlaced frequency structure that adds a new resource allocation dimension beyond simple time-division multiplexing. This enables simultaneous optimization of Doppler estimation capabilities and communication capacity by distributing resources across multiple frequency interleaves
3Reliability
If sensing and communication resource pools are orthogonally multiplexed in time-frequency dimensions, then resource interference is reduced, but system overall efficiency deteriorates
Solution Approach 1:
The patent merges sensing and communication resource pools into a unified interlaced frequency structure where both functions share the same frequency band through interleaved allocation. This combining approach maintains resource orthogonality to prevent interference while improving overall system efficiency by reducing guard bands and enabling more flexible resource utilization
Data Source
AI summary
This disclosure relates to a resource pool configuration method, an apparatus, and a system. A first apparatus obtains first configuration information, where the first configuration information is used to configure a first resource pool for the first apparatus, the first resource pool is used by the first apparatus for positioning and/or sensing, the first resource pool includes at least one first interlaced structure in frequency domain, each first interlaced structure of the at least one first interlaced structure includes a plurality of interlaced units, and adjacent interlaced units in the plurality of interlaced units in each first interlaced structure are non-contiguous in frequency domain. The configured resource pool for positioning and/or sensing in embodiments of this disclosure can ensure requirements of positioning services and/or sensing services, as well as requirements of communication services.