Low-hardware-cost 5G frequency shift multipath TDD synchronization signal recovery system and method

A technology for synchronizing signals and hardware costs, applied in the field of 5G communications, to achieve low hardware costs, reduce hardware complexity, and improve product competitiveness
CN112601278APending Publication Date: 2021-04-02深圳市佳贤通信设备有限公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
深圳市佳贤通信设备有限公司
Publication Date
2021-04-02

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Abstract

The invention discloses a low-hardware-cost 5G frequency shift multipath TDD synchronization signal recovery system and method, and the system comprises an active antenna near-end module, an active antenna far-end module, and a radio frequency cable, and the active antenna near-end module is connected with the active antenna far-end module through the radio frequency cable. The active antenna far-end module comprises a synchronizing signal detection circuit, a synchronizing signal shaping circuit and a single-chip microcomputer, the active antenna near-end module sends TDD synchronizing signals and transmits the TDD synchronizing signals to the active antenna far-end module through a radio frequency cable, and the active antenna far-end module recovers single-path synchronizing signals through the synchronizing signal detection circuit, and the single-path synchronizing signals are transmitted to the single-chip microcomputer through the synchronizing signal shaping circuit. The low-hardware-cost 5G frequency shift multipath TDD synchronization signal recovery system and method provided by the invention have the advantages that chips with high hardware cost, such as a high-speed processor and a high-speed AD chip, are not required to be added, and the like.
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Description

technical field

[0001] The present invention relates to the technical field of 5G communication, in particular to a low hardware cost 5G frequency-shifting multiplex recovery system and method for TDD synchronization signals. Background technique

[0002] In the 5G active antenna communication system, the equipment needs to maintain strict clock synchronization with the base station in the mobile communication network to avoid time slot interference affecting the operation of the base station. The TDD synchronization signal is crucial to the operation of the entire communication system.

[0003] The recovery of the TDD synchronization signal of the existing 5G active antenna system generally includes: 1. The device end is connected to a 5G synchronization MODEM, and the MODEM generates a synchronization signal; 2. Select FPGA and AD conversion chip to demodulate the synchronization signal in the 5G downlink signal ; 3. Using satellite synchronization to receive positioning s...

Claims

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