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Method and device for transmitting data between common public radio interface CPRI ports

A public wireless interface and data transmission technology, applied in the field of communication, can solve the problems of large time delay and inability to fully meet the requirements of CPRI protocol for high-speed data exchange, and achieve high-speed IQ data exchange, improve efficiency and speed of information processing.

Active Publication Date: 2010-06-09
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The inventor finds in the process of realizing the present invention, the defect that exists in the prior art is: adopt CPRI data frame to transmit IQ data, time delay is relatively large, can't fully satisfy the requirement of CPRI protocol high-speed exchange data

Method used

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  • Method and device for transmitting data between common public radio interface CPRI ports
  • Method and device for transmitting data between common public radio interface CPRI ports
  • Method and device for transmitting data between common public radio interface CPRI ports

Examples

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Embodiment 1

[0028] Embodiments of the present invention provide a method for data transmission between ports of a general public radio interface CPRI, such as Figure 4 as shown, Figure 4 It is a schematic flow chart of an embodiment of the present invention. from Figure 4 As can be seen from the figure, the method for data transmission between ports in this embodiment includes:

[0029] 101. When the CPRI receiving port of the CPRI node receives the IQ data sequence, copy the IQ data sequence received by each CPRI receiving port into M copies of the IQ data sequence.

[0030] M is not less than the number of CPRI sending ports of the CPRI node, and each of the M IQ data rows corresponds to one CPRI sending port.

[0031] 102. According to the rule that the CPRI sending port obtains the target IQ data column, when the IQ data column corresponding to the same CPRI sending port includes the target IQ data column, obtain the target IQ data column and transmit the target IQ data column t...

Embodiment 2

[0046] Embodiments of the present invention provide a method for data transmission between ports of a general public radio interface CPRI, such as Image 6 as shown, Image 6 It is a schematic flow diagram of an embodiment of the present invention. from Image 6 It can be seen that the method for data transmission between CPRI ports in this embodiment includes:

[0047] 201. The CPRI receiving port of the CPRI node receives the IQ data column;

[0048] The method described in this embodiment is a method for transmitting IQ data columns. CPRI nodes mainly refer to equipment connected through CPRI in the communication equipment network, such as wireless control equipment REC and wireless equipment RE, and they pass CPRI in the data link layer. Connection to send and receive IQ data. Although data is transmitted in units of frames at the data link layer, the CPRI receiving port receives the IQ data in sequence in the order of the columns in the frame. Taking the 16-column fra...

Embodiment 3

[0076] In order to better implement the methods described in the above embodiments, the embodiments of the present invention also provide a general public radio interface CPRI device, such as Figure 10 as shown, Figure 10 It is a schematic block diagram of the functional structure of the device of the general public radio interface CPRI according to the embodiment of the present invention, and the device includes: a CPRI receiving port 401 and a CPRI sending port 402;

[0077] CPRI receiving port 401, used to receive IQ data columns, and copy the received IQ data columns into M IQ data columns, M is not less than the number of CPRI sending ports of the device, and each IQ data column in M ​​IQ data columns Corresponding to a CPRI sending port 402;

[0078] The CPRI sending port 402 is used to obtain the target IQ data row to be sent according to the rule of obtaining the target IQ data row to be sent, and send the acquired target IQ data row when the IQ data row of the corr...

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Abstract

The embodiment of the invention relates to method and device for transmitting data between common public radio interface CPRI ports, belonging to the technical field of communication, wherein the method comprises the following steps of: when the CPRI receive port of a CPRI node receives IQ data columns, copying the IQ data columns received by each CPRI receive port into M portions of IQ data columns, wherein M is not less than the CPRI receive port number of the CPRI node, and each of M portions of IQ data columns corresponds to one CPRI receive port; according to the rules that the CPRI receive port acquires the objective IQ data columns, when the IQ data columns which corresponds to the same CPRI receive port comprise the objective IQ data columns, acquiring the objective IQ data columns and transmitting the objective IQ data columns to the same CPRI receive port. The method and device for transmitting data between common public radio interface CPRI ports can realize that a plurality of ports transmit data simultaneously under the condition of fixed bandwidth, thereby greatly increasing the efficiency of data transmission between the ports and increasing the information processing speed.

Description

technical field [0001] The invention relates to the communication field, in particular to a method for data transmission between CPRI ports and a CPRI device. Background technique [0002] In modern communication technology, optical fiber communication technology is widely used in various fields of communication due to its advantages of low cost and large bandwidth. Among them, the CPRI (Common Public Radio Interface, common public radio port) specification is a specification based on optical fiber communication. Such as figure 1 The specification shown divides the base station into radio control equipment REC (Radio Equipment Control, wireless control equipment) and wireless equipment RE (Radio Equipment, wireless equipment), between REC and RE, between REC and REC, and between RE and RE, all can be Connect via CPRI port (connection method such as figure 2 As shown, including between REC and RE, between RE and RE), transmit IQ data (In-Phase and Quadrature data, digital...

Claims

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Application Information

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IPC IPC(8): H04L12/56H04L12/70
Inventor 于岗郭晓川
Owner HUAWEI TECH CO LTD
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