Same-phase IQ(In-phase Quadrate) data compression method and device

A data compression, in-phase and quadrature technology, applied in digital transmission systems, shaping networks in transmitters/receivers, network traffic/resource management, etc., can solve problems such as the cost increase of LTE wireless communication systems, and avoid frequent updates The effect of equipment, bit width reduction, and optical port rate reduction

Inactive Publication Date: 2012-02-01
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the increase of the optical port rate, the data traffic between the eBBU and eRRU in the eNodeB will also increase. Therefore, the throughput requirements for the eBBU and eRRU are getting higher and higher

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  • Same-phase IQ(In-phase Quadrate) data compression method and device
  • Same-phase IQ(In-phase Quadrate) data compression method and device
  • Same-phase IQ(In-phase Quadrate) data compression method and device

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Embodiment Construction

[0039] The basic idea of ​​the present invention is: eRRU judges whether the IQ data is a physical random access channel (Physical Random Access Channel, PRACH) that needs predetermined quantization processing according to the time-frequency information carried in the IQ data sent by each antenna Information or data information of a traffic channel; the PRACH information that needs to be quantized is judged to be quantized with 15 bits, and the data information of a traffic channel that is judged to be quantized is quantized with bits less than 15; after that Send the quantized data to the eBBU.

[0040] The invention provides a method for in-phase and quadrature data compression, such as figure 1 As shown, the method includes:

[0041] Step 101, each antenna of the eNodeB receives IQ data respectively, and sends the received IQ data to the eRRU, and the IQ data carries time-frequency information.

[0042] Wherein, the IQ data includes PRACH information and traffic channel d...

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Abstract

The invention discloses a same-phase IQ (In-phase Quadrate) data compression method, which comprises the following steps: an eRRU(evolved Radio Remote Unit) judges whether the IQ data is PRACH (Physical Random Access Channel) information or data information of a service channel, which is needed to be subjected to quantitative preprocessing, according to time frequency information carried in the IQ data sent by each antenna; the PRACCH information which is judged to be subjected to quantitative preprocessing is subjected to quantitative processing by adopting 15 bits, and the data information of the service channel, which is judged to need to be subjected to quantitative processing is subjected to quantitative process by adopting 15 bits; and the data subjected to quantitative processing is transmitted to an eBBU(Evolved Building Baseband Unit). The invention simultaneously discloses an eRRU and an eNode B. According to the invention, the optical interface speed can be reduced, and frequent equipment replacement is avoided.

Description

technical field [0001] The invention relates to data compression technology in mobile communication, in particular to an in-phase quadrature (In-phase Quadrature, IQ) data compression method and device. Background technique [0002] The Long Term Evolution (LTE) wireless communication system is composed of an evolved base station (Evolved NodeB, eNodeB), and the eNodeB includes an evolved indoor baseband processing unit (Evolved Building Baseband Unit, eBBU) and an evolved remote radio unit (Evolved Radio Remote Unit, eRRU), the eBBU and the eRRU are connected through an optical fiber or a cable. [0003] The eBBU includes a radio equipment controller (Radio Equipment Control, REC), and the eRRU includes radio equipment (Radio Equipment, RE), and the REC and the RE are connected through a common public radio interface (Common Public Radio Interface, CPRI ) protocol, or an open radio interface (Open Radio Interface, ORI) protocol for data interaction, and the data transmissi...

Claims

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Application Information

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IPC IPC(8): H04W28/06H04L25/03H04L1/00
CPCH04W28/06H04L25/03H03M7/3059H04W88/085H04L27/3405H04W74/0833H04L1/00H03M7/30
Inventor 张帅向际鹰许进胡留军
Owner ZTE CORP
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