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IQ data processing method and system of remote radio unit and remote radio unit

A technology of remote radio unit and processing method, which is applied in the field of communication, can solve problems such as high cost and low power in the digital domain, and achieve the effects of improving capability, increasing downlink capacity, and reducing cost

Active Publication Date: 2019-10-11
ZTE CORP
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

At present, most of the active antenna prototypes provided by equipment manufacturers use a 4×2 antenna architecture to achieve flexible beam control; under this architecture, if you want to support vertical multi-beam and space division multiple access , the number of RF channels needs to be doubled, but this will make the cost too high, and most equipment manufacturers have given up this solution at present
At present, under the 4×2 antenna architecture, there is a way to directly use dual carriers of the same frequency to carry IQ data. However, since the frequency of each subcarrier in the two carriers is exactly the same, digital domain power problem

Method used

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  • IQ data processing method and system of remote radio unit and remote radio unit
  • IQ data processing method and system of remote radio unit and remote radio unit
  • IQ data processing method and system of remote radio unit and remote radio unit

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Embodiment Construction

[0046] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0047] image 3 It is a schematic diagram of the implementation flow of the IQ data processing method of a remote radio unit RRU of the present invention, such as image 3 As shown, the method includes the following steps:

[0048] Step 301: After the RRU receives the IQ data sent by the baseband processing unit BBU through the dual carrier, it performs parallel processing on the IQ data of the dual carrier;

[0049] Here, the dual carriers used by the BBU to send the IQ data are dual carriers of the same frequency.

[0050] Specifically, when the same-frequency dual carriers are carrier one and carrier two, the parallel processing of the IQ data of the dual carriers includes:

[0051] Performing filtering and digital up conversion (DUC, Digital Up Converter) processing on the IQ data of the first carrier and the IQ data of the sec...

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Abstract

Disclosed is an IQ data processing method of a remote radio frequency unit (RRU), the method comprising: when an RRU receives IQ data transmitted by a base band unit (BBU) via a dual-carrier, conducting parallel processing on the IQ data of the dual-carrier; modulating the processed dual-carrier into a radio frequency signal, and outputting the radio frequency signal to an aerial port. Also disclosed are an IQ data processing system, RRU, and computer storage medium.

Description

technical field [0001] The present invention relates to communication technology in the communication field, and in particular to a method and system for processing IQ data of a remote radio unit and a remote radio unit. Background technique [0002] With more and more network frequency bands and standards, high-performance base stations supporting multi-frequency and multi-mode——active antenna or active antenna system (AAS, Active Antenna System) emerged as the times require. As a new industry direction, active antenna is a new architecture in the form of base stations, such as figure 1 As shown, the active antenna integrates the radio frequency part of the base station into the antenna, and uses multi-channel radio frequency to cooperate with the antenna element to realize spatial beamforming and complete the transmission and reception of radio frequency signals. As a new base station architecture form, the active antenna, the baseband processing unit (BBU, Base Band Unit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/00H04L1/06
Inventor 成军平田宏张天鹏张志锋刘彬邵立群李永国王钢白伟岐
Owner ZTE CORP
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