RF Antenna Line Device Detection Signal Routing

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Solution Overview

Problem

The increasing complexity of antenna feeder systems in mobile communications networks due to expanded data services and frequency band additions leads to difficulties in accurately detecting connection errors and determining specific error locations during network drive tests, as the connection relationships between devices in the topology network are not easily obtainable.

Innovation Solution

A signal transmission method in a radio frequency network that involves a detection device, antenna line devices, and antennas connected in series, where each antenna line device receives a detection signal, adds device information, and sends it forward to determine correct connection relationships and pinpoint connection errors by using hop numbers and port information.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If the quantity of antenna ports and devices in the feeder network is increased to expand data capacity, then the data capacity is improved, but the complexity of installing, configuring, and maintaining the antenna feeder system is increased

Engineering Contradiction:
Improvedata capacityVSAvoidsystem complexity
Core Design Contradiction:
Quantity of substanceVSDevice complexity

Solution Approach 1:

The patent implements an automated detection system that sends detection signals through the feeder network and collects feedback information from each device. This feedback mechanism automatically identifies connection relationships and errors, reducing the manual configuration and maintenance complexity that arises from increasing the quantity of antenna ports and feeder devices.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The detection system enables the network to self-diagnose connection relationships and errors without requiring manual intervention. Each device in the feeder network automatically participates in the detection process by receiving and transmitting detection signals, allowing the system to self-verify its configuration and self-identify problems, thereby reducing maintenance complexity.

Inventive Principle:
Principle #25Self-service

2Quantity of substance

If the quantity of antenna ports and base stations is increased to expand data capacity, then the data capacity is improved, but the problem detection determining accuracy during network drive test is reduced

Engineering Contradiction:
Improvedata capacityVSAvoidproblem detection accuracy
Core Design Contradiction:
Quantity of substanceVSMeasurement precision

Solution Approach 1:

The patent segments the problem detection process by having each individual device in the feeder network independently participate in detection. Instead of attempting to detect all connection relationships simultaneously in a complex network, the system breaks down the detection into discrete segments at each device level, allowing accurate identification of connection relationships even as network规模 increases.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent introduces detection signals as an intermediary mechanism to establish connection relationships. These detection signals act as mediators that traverse through each device in the feeder network, carrying information about connection relationships. This intermediary approach enables accurate problem detection without requiring direct observation of all network interactions, maintaining detection accuracy as network complexity increases.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Quantity of substance

If the quantity of devices in the feeder network is increased to expand data capacity, then the data capacity is improved, but the time required for problem detection and the ability to determine specific error locations is increased

Engineering Contradiction:
Improvedata capacityVSAvoidproblem detection time
Core Design Contradiction:
Quantity of substanceVSLoss of time

Solution Approach 1:

The patent implements preliminary detection by automatically sending detection signals through the feeder network during normal operation or system initialization. This preliminary action identifies and records connection relationships and potential errors before they become critical problems, eliminating the need for time-consuming manual troubleshooting and reducing overall problem detection time.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The detection system collects feedback information from each device in the feeder network, which includes identification of the device and its connection status. This feedback mechanism rapidly communicates connection relationship information back to the detection device, enabling quick identification of specific error locations without requiring extensive manual investigation, thus reducing problem detection time as network size increases.

Inventive Principle:
Principle #23Feedback

Data Source

PatentUS11038280B2Radio frequency system
Publication Date: 2021.06.15 HUAWEI TECH CO LTD
  • US11038280B2 patent drawing
  • US11038280B2 patent drawing
  • US11038280B2 patent drawing

AI summary

The present application discloses a radio frequency system, includes a detection device, at least one antenna line device, and an antenna that are sequentially connected in series by using a radio frequency channel. Each of the at least one antenna line device is configured to: receive a detection signal from the detection device or a previous antenna line device connected in series to the antenna line device; and add device information of the antenna line device to the received detection signal, and send, to the antenna or a next antenna line device connected in series to the antenna line device, the detection signal to which the device information is added. The detection device obtain device information of each of devices connected in series on a radio frequency line, to determine whether a connection relationship between the devices is correct, and determine a specific port location at which an error occurs.