Radio frequency front-end device for frequency division space-ground compatible base station and working mode control method thereof

CN122457076APending Publication Date: 2026-07-24CHINA MOBILE COMM LTD RES INST +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA MOBILE COMM LTD RES INST
Filing Date
2026-01-30
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Existing base stations face challenges in interference management and low-altitude service demands during spectrum refarming in the 5G era. They are unable to achieve independent beam control in frequency bands under reused antenna conditions, resulting in difficulty in suppressing interference and insufficient spectrum resource allocation.

Method used

By introducing duplexers and independent phase-shifting networks into the radio frequency channel, independent control of F-band and A-band beams is achieved. Combined with intelligent dynamic operating mode control methods, the optimal beam mode is adaptively selected, supporting flexible control of ground and low-altitude services.

Benefits of technology

Without increasing the complexity of the antenna panel, it effectively suppresses interference, improves spectrum efficiency, meets the needs of ground and low-altitude services, and enhances the overall performance of the base station.

✦ Generated by Eureka AI based on patent content.

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    Figure CN122457076A_ABST
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Abstract

The application relates to the field of mobile communication technology, in particular to a frequency division space-ground compatible base station radio frequency front-end device and a working mode control method thereof. The device comprises a digital front-end, a transceiver, a first duplexer, a second duplexer, an F / A frequency band phase shift network and an antenna array. The digital front-end is connected with the transceiver. The radio frequency output end of the transceiver is connected with the common end of the first duplexer. Two separated ports of the first duplexer are respectively connected with the input ends of the F / A frequency band phase shift network. The output ends of the F / A frequency band phase shift network are respectively connected with two separated ports of the second duplexer. The common end of the second duplexer is connected with the antenna array. The first duplexer is used for separating the composite signal from the transceiver into F / A frequency band signals. The F / A frequency band phase shift network is used for beamforming the F / A frequency band signals. The second duplexer is used for combining the F / A frequency band signals after beamforming and feeding to the antenna array for radiation.
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