Unlock instant, AI-driven research and patent intelligence for your innovation.

Radio frequency zoom out equipment

A technology of radio frequency remote equipment and equipment, which is applied in passive electrical relay systems, selection devices, radio/induction link selection arrangements, etc. , to achieve the effect of optimizing resources, simplifying equipment, and improving data rate

Inactive Publication Date: 2008-07-30
ZTE CORP
View PDF0 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A disadvantage of this remote device is that the installation point cannot be too far away from the baseband pool (BBU), otherwise the analog signal on the interface will be greatly attenuated and more noise will be introduced

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Radio frequency zoom out equipment
  • Radio frequency zoom out equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] The specific implementation of the present invention will be further described below in conjunction with accompanying drawing:

[0016] The remote radio device based on digital intermediate frequency transmission of the present invention no longer completes the digital intermediate frequency processing function, and the digital intermediate frequency processing function is transferred to the upper-level device of the remote radio device for completion, and the transmission interface on the remote radio device pair does not transmit baseband data. Instead, digital IF data is transmitted.

[0017] The invention includes: a physical interface with superior equipment, an AD / DA conversion circuit, and a radio frequency processing circuit. The physical interface with the upper-level equipment completes the digital interface from the remote radio unit (RRU) to its upper-level equipment, including physical layer functions such as data format conversion. The content carried by ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a radio frequency remote device that comprises a physical adapter, an AD / DA conversion circuit and a radio frequency process circuit connected with upper devices; the physical adapter connected with the upper device receives down-stream digital intermediate frequency signal to perform format conversion before being sent to the AD / DA conversion circuit for being converted into analog intermediate frequency signals; the down-stream analog intermediate frequency signals pass the radio frequency process circuit for filtration and amplification for the upper frequency conversion process being sent out of an antenna; the up-stream radio frequency signals are received by the antenna, amplified and filtrated through the radio frequency process circuit, and then processed through the down-frequency conversion into analog intermediate frequency signals; the up-stream analog intermediate frequency signals pass acquisition through the AD / DA conversion circuit before being changed into the digital intermediate frequency signals; the up-stream digital intermediate frequency signals are treated for format conversion through the physical adapter connected with the upper device, before being processed and sent to the upper device through a physical layer. The invention improves the device reliability and reduces the system cost.

Description

technical field [0001] The invention relates to a base station device in a mobile wireless system, in particular to a radio remote device. Background technique [0002] The base station equipment is at the front end of the access network in the wireless cellular system, and the base station equipment has a large number in the whole system. Different design structures of the base station equipment have a great influence on the cost of the entire network, the convenience of construction, and the performance of the network . [0003] Base station equipment can be divided into outdoor base stations and indoor base stations according to different application environments. According to the system structure of the base station, it can be divided into two types: integrated base station and distributed base station. The integrated base station integrates functions such as Iub interface, baseband processing, and radio frequency processing, and realizes the functions of a complete ba...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H04Q7/30H04B7/145
Inventor 高嵩
Owner ZTE CORP