Method for detecting connection relationship in radio frequency channel in base station antenna and calibrating channel

By adding phase identifiers to the calibration network, the problem of high detection cost of base station antenna radio frequency channel connection relationship in the prior art is solved, and accurate detection and channel calibration without increasing costs or size are achieved.

WO2025061073A1 Publication Date: 2025-03-27HUAWEI TECH CO LTD
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Patent Information

Application Number
PCT/CN2024/119582
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2023-09-22
Filing Date
2024-09-19
Publication Date
2025-03-27

AI Technical Summary

Technical Problem

The prior art is relatively expensive and has a large equipment size when detecting the RF channel connection relationship of the base station antenna and channel calibration, making it difficult to effectively reduce the cost of detecting the RRU port and antenna port connection relationship.

Method used

By adding phase identifiers to the calibration network, the BBU can obtain the antenna ports that are actually connected to in the RF channel based on the phase identifier, without adding devices or increasing product size.

Benefits of technology

It realizes that the connection relationship between the RRU port and the antenna port in the base station antenna radio frequency channel is accurately detected and the channel calibration is performed without increasing costs or size.

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Abstract

Provided in the embodiments of the present application is a method for detecting a connection relationship in a radio frequency channel in a base station antenna and calibrating a channel. The method comprises: receiving a sample from a calibration network, wherein the sample is a signal that is obtained after a phase identifier is added to a coupled signal of a radio frequency channel in a base station antenna by means of the calibration network, and the phase identifier is a phase value and is used for marking, in the radio frequency channel, an antenna port connected to a remote radio unit (RRU) port; and according to the phase identifier, undergoing the learning of an antenna port actually connected to the RRU port. By means of the technical solution provided in the embodiments of the present application, there is no need to add a device, and there is also no need to increase a product size, thereby effectively solving the problem of detecting a connection relationship between an RRU port and an antenna port in a radio frequency channel at a high cost.
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