Indoor Traffic Map Presentation via Pseudo Carrier Polling

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Solution Overview

Problem

Current indoor traffic mapping systems for multi-band multi-mode digitized optical fiber distribution systems in mobile communication networks face challenges such as interference, inaccurate positioning, and uneven traffic distribution, leading to coverage holes and congestion, especially in high-rise buildings where signal strength is weak and handovers frequent.

Innovation Solution

A method and apparatus that use a pseudo carrier sent via a polling routing table to remote units, allowing them to collect operating data and measurement reports from terminals, determining traffic map data without the need for complex calculations or manual placement of pico base stations, enabling accurate indoor traffic mapping.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Area of stationary object

If a multi-band multi-mode digitized optical fiber distribution system is deployed in high-rise buildings, then network coverage is improved, but electromagnetic interference and positioning difficulty increase

Engineering Contradiction:
Improvenetwork coverage areaVSAvoidelectromagnetic interference
Core Design Contradiction:
Area of stationary objectVSObject-affected harmful factors

Solution Approach 1:

The patent introduces a pseudo-carrier as an intermediary signal to enable remote units to perform measurements and report traffic conditions. This pseudo-carrier acts as a mediator between the optical fiber distribution system and the terminals, allowing the system to obtain traffic map data without direct electromagnetic interference from multiple operators' co-site equipment.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent replaces manual placement of pico base stations with an automated polling mechanism. The near-end unit automatically polls remote units using a pre-established routing table, substituting the mechanical/manual configuration process with an automated electronic control system that dynamically collects traffic data.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Measurement precision

If manual placement of pico base stations is used for data collection, then positioning accuracy is improved, but device complexity and operation difficulty increase

Engineering Contradiction:
Improvepositioning accuracyVSAvoidsystem complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent enables remote units to self-report their traffic conditions and measurement data automatically. Each remote unit measures the pseudo-carrier signal and sends reports back to the near-end unit without requiring manual intervention, making the system self-configuring and self-monitoring.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent creates a universal polling mechanism that can work with any remote unit in the optical fiber distribution system. The near-end unit uses a standardized routing table to poll all remote units uniformly, regardless of their specific location or configuration, simplifying the overall system architecture.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Ease of operation

If fixed-point statistics collection is performed, then operation simplicity is improved, but measurement precision and traffic distribution accuracy deteriorate

Engineering Contradiction:
Improveoperation simplicityVSAvoidtraffic distribution accuracy
Core Design Contradiction:
Ease of operationVSMeasurement precision

Solution Approach 1:

The patent segments the indoor coverage area into multiple zones, each served by a remote unit. Instead of collecting statistics at a single fixed point, the system divides the measurement task across multiple remote units, each responsible for its own coverage zone, thereby achieving both operational simplicity and measurement precision.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent implements periodic polling of remote units by the near-end unit. The routing table enables systematic, periodic collection of traffic data from all remote units, ensuring continuous and accurate monitoring of traffic distribution without requiring complex real-time processing.

Inventive Principle:
Principle #19Periodic action

4Quantity of substance

If base stations cover multiple floors, then device quantity is reduced, but positioning difficulty and traffic monitoring accuracy increase

Engineering Contradiction:
Improvenumber of base stationsVSAvoidfloor positioning accuracy
Core Design Contradiction:
Quantity of substanceVSMeasurement precision

Solution Approach 1:

The patent segments the multi-floor coverage into multiple remote units, each responsible for specific floors or zones. This segmentation allows precise positioning and traffic monitoring at the remote unit level, even though the overall system uses fewer base stations than traditional per-floor deployment.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent introduces the pseudo-carrier as an intermediary that enables remote units to perform measurements and report their specific location and traffic conditions. This mediator signal allows the system to maintain positioning accuracy across multiple floors without requiring a dense deployment of base stations.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentUS9693246B2Method and apparatus for presenting indoor traffic map
Publication Date: 2017.06.27 HUAWEI TECH CO LTD
  • US9693246B2 patent drawing
  • US9693246B2 patent drawing
  • US9693246B2 patent drawing

AI summary

Embodiments of the present invention relate to a method and an apparatus for presenting an indoor traffic map. The method includes: sending, by a near-end unit of an indoor distribution system, a pseudo carrier to a polled remote unit according to a pre-established polling routing table; receiving operating data collected by the remote unit and a measurement report reported by the terminal; determining traffic map data of the polled remote unit; determining whether the traffic map data meets a traffic map presenting condition, and presenting an indoor traffic map when the traffic map presenting condition is met. In the present invention, remote units are polled sequentially by using a pseudo carrier and a polling routing table, operating data of the remote unit and a measurement report of the terminal are obtained as traffic map data, to perform representation of a traffic map.