Data transmission method, communication equipment and communication system

A data transmission method, technology of communication equipment, applied in the field of data transmission method, communication equipment and communication system, can solve the problems such as the inability to guarantee the timing relationship of data transmission of the internal equipment of the wireless base station, and achieve the effect of ensuring the timing relationship

Active Publication Date: 2015-04-08
SHANGHAI HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the existing technology cannot transmit the frame number and frame phase of the CPRI data frame in the Ethernet, therefore, the timing relationship of data transmission between the internal devices of the wireless base station cannot be guaranteed

Method used

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  • Data transmission method, communication equipment and communication system
  • Data transmission method, communication equipment and communication system
  • Data transmission method, communication equipment and communication system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Please refer to figure 1 , the embodiment of the present invention provides a data transmission method, the method is used to transmit the frame number and frame phase of the CPRI data frame in the Ethernet, the Ethernet includes a first communication device and a second communication device, the first Both the communication device and the second communication device run the CPRI protocol;

[0039] The method may include:

[0040] 110. The first communication device selects a CPRI data frame, and converts a frame number of the selected CPRI data frame into a second value.

[0041] In the embodiment of the present invention, the first communication device (such as REC or RE) and the second communication device (such as REC or RE) are connected by Ethernet technology. When the first communication device needs to send CPRI data to the second communication device, it needs to convert the frame sequence of the CPRI data to be sent into an Ethernet packet, and then send it ...

Embodiment 2

[0086] Please refer to image 3 , the embodiment of the present invention provides another data transmission method, the method is used to transmit the frame number and frame phase of the CPRI data frame in the Ethernet, the Ethernet network includes a first communication device and a second communication device, the first communication device Both a communication device and a second communication device run the CPRI protocol, the method may include:

[0087] 210. The second communication device receives a synchronization message carrying a time stamp sent by the first communication device;

[0088] The timestamp is generated by the first communication device selecting a CPRI data frame according to the frame number and phase of the selected CPRI data frame; for details, please refer to Embodiment 1.

[0089] 220. Determine the second value and second pulse signal corresponding to the timestamp, determine the frame number of the selected CPRI data frame according to the secon...

Embodiment 3

[0104] Please refer to Figure 5 , the embodiment of the present invention provides a communication device 50, used for Ethernet, the Ethernet includes the communication device and another communication device, both the communication device and the other communication device run the CPRI protocol, the Communication equipment may include:

[0105] Processor 510, configured to select a CPRI data frame, convert the frame number of the selected CPRI data frame into a second value, and also generate a synchronization message;

[0106] A signal generator 520, configured to generate a second pulse signal, wherein the phase of the second pulse signal is the frame phase of the selected CPRI data frame;

[0107] A timestamp generating circuit 530, configured to generate a timestamp according to the second pulse signal and the second value, and add the timestamp to the synchronization message;

[0108] The transmitter 540 is configured to send the synchronization message carrying the t...

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PUM

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Abstract

The invention discloses a data transmission method for transmitting a frame number and a frame phase of a CPRI (common public radio interface) data frame in Ethernet. The invention further provides corresponding communication equipment and a communication system. In available implementation mode of the invention, the method comprises the following steps: selecting one CPRI data frame by using the first communication equipment, converting the frame number of the selected CPRI data frame into a second value; and producing a second pulse signal, wherein the phase of the second pulse signal is the frame phase of the selected CPRI data frame; generating timestamp according to the second pulse signal and the second value; sending synchronous information carrying the timestamp to the second communication equipment so that the second communication equipment can acquire the frame number and the frame phase of the selected CPRI data frame according to the timestamp.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a data transmission method, communication equipment and a communication system. Background technique [0002] The common public radio interface (Common Public Radio Interface, CPRI) protocol is used as an interface specification between internal equipment of a radio base station, such as a radio equipment control center (Radio Equipment Control, REC) and a radio equipment (Radio Equipment, RE). [0003] Internal devices in the wireless base station, such as the REC and the RE, are generally connected in a point-to-point direct connection manner. The existing CPRI protocol is designed for point-to-point direct connection, requiring the physical layer to ensure data transmission with strict timing relationship. [0004] With the development requirements of communication networks, devices such as REC and RE need to be connected through Ethernet technology in some scenarios. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W56/00H04J3/06
CPCH04J3/06H04W56/00H04W88/085H04J3/0667H04J3/0617H04J3/0661
Inventor 谷扬
Owner SHANGHAI HUAWEI TECH CO LTD
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