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Remote radio device, active antenna and base station system

A radio frequency remote, active antenna technology, applied in antennas, transmission systems, antenna arrays, etc., can solve the requirements of increasing the interface transmission rate, increase the demand for interface bandwidth, increase the cost of network construction, etc., to reduce the fronthaul bandwidth. Demand and the effect of reducing network construction costs

Inactive Publication Date: 2021-03-16
ZTE CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the increase of 5G bandwidth and the surge of traffic, the number of antennas increases, which leads to an increase in the interface bandwidth requirements of traditional baseband processing units and radio remote units, thereby increasing the requirements for interface transmission rates and increasing network construction costs.

Method used

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  • Remote radio device, active antenna and base station system
  • Remote radio device, active antenna and base station system
  • Remote radio device, active antenna and base station system

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Embodiment Construction

[0053] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, not to limit the present invention.

[0054] figure 1 It is a schematic diagram of the existing base station system, such as figure 1 As shown, the base station system includes a baseband processing unit (BuildingBase band Unit, BBU) 1 and a radio remote unit (Radio Remote Unit, RRU) 2, the baseband processing unit 1 mainly performs physical layer processing on the baseband signal, for example, in the uplink direction Fast Fourier transformation, resource inverse mapping, channel estimation and pre-filtering module, equalization module, etc.; layer mapping, precoding, resource mapping, fast Fourier inverse transform module, etc. in the downlink direction. The remote radio unit 2 only processes radio frequency sign...

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Abstract

The invention provides a remote radio device. The remote radio device comprises a first uplink baseband processing module, a first downlink baseband processing module and a radio frequency processingmodule, wherein the first uplink baseband processing module is used for carrying out physical layer processing on an uplink baseband signal, and the first downlink baseband processing module is used for carrying out physical layer processing on a downlink baseband signal; the radio frequency processing module is used for converting an uplink baseband signal and a radio frequency signal and converting a downlink baseband signal and a radio frequency signal. According to the invention, the requirement on the interface transmission rate between the baseband processing device and the remote radiodevice can be reduced, and the networking cost is reduced.

Description

technical field [0001] The invention relates to the technical field of wireless communication, in particular to a radio remote device, an active antenna and a base station system. Background technique [0002] In a traditional wireless communication system, a base station is divided into a baseband processing unit (Building Base band Unit, BBU) and a radio remote unit (Radio Remote Unit, RRU). Among them, the baseband processing unit mainly performs baseband processing, including encoding, modulation, layer mapping, resource mapping and other processing; the remote radio frequency unit mainly performs radio frequency signal processing, including conversion between baseband signal and radio frequency signal, power amplification and filtering, etc. Signal transmission is performed between the baseband processing unit and the remote radio unit through an optical fiber, and the interface between the baseband processing unit and the remote radio unit may use a common public radio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B10/2575H04W88/08H01Q1/24H01Q21/00
CPCH04B10/25752H04W88/085H01Q21/00H01Q21/0006H01Q1/246H01Q1/24H04W88/08H04B10/2575
Inventor 安涛杨蓉沈楠李名定
Owner ZTE CORP
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