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Method and device for transmitting non-I (in-phase)/Q (quadrature phase) data through common public radio interface (CPRI)

A technology of a public wireless interface and a data transmission method, applied in the field of communication, capable of solving problems such as transmitting non-I/Q data

Active Publication Date: 2011-08-17
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to solve the problem in the prior art that non-I / Q data cannot be transmitted between REC and RE through the CPRI protocol, the embodiment of the present invention proposes a non-I / Q data transmission method and device for a common public radio interface. The scheme is as follows:

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  • Method and device for transmitting non-I (in-phase)/Q (quadrature phase) data through common public radio interface (CPRI)

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Embodiment Construction

[0027] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0028] Technical scheme of the present invention can be applied to various communication systems, for example: Global System for Mobile Communications (GSM, Global System for Mobile communications), Code Division Multiple Access (CDMA, Code Division Multiple Access) system, Wideband Code Division Multiple Access ( WCDMA, Wideband Code Division Multiple Access Wireless), General Packet Radio Service (GPRS, General Packet Radio Service), Long Term Evolution (LTE, Long Term Evolution), etc.

[0029] Additionally, various aspects are described herein in connection with a radio equipment (RE) and / or a radio equipment controller (REC). REs may be wireless devices that provide voice and / or data connectivity to users. REC is the connection po...

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Abstract

The invention provides a method and device for transmitting non-I (in-phase) / Q (quadrature phase) data through a common public radio interface (CPRI), and belongs to the technical field of communications. The device comprises a packaging module and a transmission module. The method comprises the following steps: when the CPRI is positioned before downlink modulation or after uplink demodulation, adding a packet header to the data transmitted on the CPRI and then packaging the data into an information packet, wherein, the header comprises at least one or more than one field as follows: an destination address field, a source address field, a packet type field, a start-of-packet (SOP) / end-of-packet (EOP) mark field, a data length field and a sequence number field; mapping the information packet into one or more than one information packet container; bearing the information packet container in a superframe; and transmitting the superframe through the CPRI. By utilizing the method and the device, the non-I / Q data can be borne in a CPRI frame and transmitted through the CPRI.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a non-I (In-Phase, in-phase component) / Q (Quadrature Phase, quadrature component) data transmission method and device of a common public wireless interface. Background technique [0002] The CPRI (Common Public Radio Interface, Common Public Radio Interface) protocol provides a public protocol for the interface between the wireless device controller and the wireless device. The wireless service data transmitted on the existing CPRI protocol is based on I / Q digital baseband data, so the CPRI interface division position of the wireless communication system is before uplink demodulation and after downlink modulation. That is, REC (Radio Equipment Control, wireless equipment controller) completes data baseband processing, and RE (Radio Equipment, wireless equipment) completes analog wireless frequency domain functions. [0003] In the process of realizing the present ...

Claims

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Application Information

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IPC IPC(8): H04L27/36
CPCH04W88/085H04L12/4633H04W28/065H04L12/40
Inventor 包盛花李孝朋
Owner HUAWEI TECH CO LTD
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