Cooperative Base Station Pair Planning for Doppler Sensing Coverage

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Solution Overview

Problem

Conventional wireless communication network planning does not consider cooperative sensing, and existing radar sensing network planning fails to account for Doppler shift, leading to blind areas and incomplete coverage in integrated sensing and communication systems.

Innovation Solution

A network planning method that determines an initial sensing pair and a complementary sensing pair to cover uncovered zones, considering Doppler shift and blind areas, using a two-station Doppler sensing model to optimize coverage efficiency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If device-free sensing is used with fixed base stations, then sensing function is integrated with communication, but blind areas appear due to fixed positions

Engineering Contradiction:

Improvesensing coverageVSAvoidblind area

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The patent divides the sensing network into multiple cooperative sensing pairs, where each pair consists of a transmitting base station and a receiving base station. By segmenting the coverage area into multiple such pairs, the system can collectively cover the entire target region while minimizing blind areas through coordinated sensing across different pairs.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent merges communication and sensing functions by using communication signals for sensing purposes. The transmitting base station sends communication signals that also serve as sensing signals, and the receiving base station receives both communication and sensing functions, thereby integrating both functions without requiring separate sensing infrastructure.

Inventive Principle:

Principle #5Merging (Combining)

2Ease of manufacture

If conventional communication network planning is used, then network deployment is simple, but sensing coverage is incomplete

Engineering Contradiction:

Improvenetwork deploymentVSAvoidsensing coverage

Core Design Contradiction:

Ease of manufactureVSAdaptability or versatility

Solution Approach 1:

The patent makes base stations universal by enabling them to perform both communication and sensing functions. The base stations use their existing communication hardware to transmit and receive sensing signals, eliminating the need for separate sensing equipment and simplifying deployment while achieving comprehensive sensing coverage.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent performs preliminary network planning by determining optimal transmitting and receiving base station pairs before actual sensing operations. This preliminary configuration ensures that the network structure is pre-optimized for sensing coverage, allowing comprehensive coverage to be achieved without complex real-time adjustments.

Inventive Principle:

Principle #10Preliminary action

3Device complexity

If single base station sensing is used, then system design is simple, but coverage efficiency is low

Engineering Contradiction:

Improvesystem designVSAvoidcoverage efficiency

Core Design Contradiction:

Device complexityVSProductivity

Solution Approach 1:

The patent introduces receiving base stations as intermediaries that cooperate with transmitting base stations. These receiving base stations receive sensing signals and process the reflected echoes, enabling the system to achieve comprehensive coverage through cooperative sensing pairs rather than requiring each base station to independently provide full coverage.

Inventive Principle:

Principle #24Intermediary (Mediator)

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

The method ensures complete coverage of target regions by minimizing blind areas and improving coverage efficiency in integrated sensing and communication networks.

Implementation Method 1

determining a second sensing blind area and a second sensing area of the candidate sensing pair based on a distance between the two base stations forming the candidate sensing pair; and determining the candidate sensing pair satisfying that a remaining blind area is less than a first threshold and a repeated coverage is less than a second threshold

Methodology Applied

Scientific EffectDoppler shift: Doppler Effect

Data Source

PatentEP4727193A1Network planning method, electronic device, and computer-readable medium

Publication Date: 2026.04.15 ZTE CORP

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AI summary

A network planning method, an electronic device, and a computer-readable medium. The method comprises: determining an initial sensing pair corresponding to an uncovered region in a target region, wherein the initial sensing pair is formed by two base stations in the target region; determining a first sensing region and first sensing blind region of the initial sensing pair according to the distance between the two base stations which form the initial sensing pair; and determining a complementary sensing pair of the initial sensing pair according to the first sensing region and the first sensing blind region, so as to cover the uncovered region, wherein the complementary sensing pair is formed by two base stations in the uncovered region.