Radio interface data synchronous processing method and radio interface data synchronous processing device

A technology of synchronous processing and air interface data, which is applied in the field of communication, can solve the problems of large transmission delay jitter, air interface processing time out of synchronization, and inability to synchronize clocks, etc., to achieve the effect of eliminating transmission delay and jitter

Active Publication Date: 2013-07-03
HUAWEI TECH CO LTD
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AI Technical Summary

Problems solved by technology

However, the existing point-to-point or point-to-multipoint transmission schemes using Common Public Radio Interface (CPRI) and Open Base Station Architecture Protocol (OBSAI) interfaces between RECs and REs severely limit the evolution of these technical directions, and urgently need to be solved
Among them, data transmission between REC and RE through bearer transmission network is an important technical direction. This technology breaks the existing data transmission mechanism of Common Public Radio Interface (CPRI) and Open Base Station Architecture Protocol (OBSAI) interface, and introduces relatively Large transmission delay and jitter affect the time synchronization requirements of wireless communication protocols for air interface antenna data transmission
[0006] Since the REC and each RE are sepa

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  • Radio interface data synchronous processing method and radio interface data synchronous processing device
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  • Radio interface data synchronous processing method and radio interface data synchronous processing device

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Embodiment Construction

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention belong to the protection scope of the present invention.

[0038] Please refer to the attached figure 1 , is a schematic flowchart of a method for air interface data synchronization processing provided by an embodiment of the present invention. attached figure 1 The exemplary method can be used for transmitting antenna data on a wireless device (RE), and is also applicable to a packet CPRI system, a non-packet CPRI system, a packet OBSAI system, and a non-packet OBSAI system, and mainly includes steps:

[0039] S101, wireless device RE 0 Receive the data fram...

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Abstract

The invention provides a radio interface data synchronous processing method and a radio interface data synchronous processing device. The radio interface data synchronous processing method and the radio interface data synchronous processing device can ensure that data frames with the same frame number can be synchronously transmitted at radio interfaces of all radio equipment and ensure that influences caused by transmission delay and vibration are eliminated. The radio interface data synchronous processing method includes the steps: (1) the radio equipment RE0 receives a data frame Df transmitted from a radio equipment control center to the radio equipment RE0 through a loading transmission network, and the radio equipment RE0 stores the data frame Df into an internal cache unit of the radio equipment RE0; (2) the radio equipment RE0 reads the data frame Df from the internal cache unit, and then the data frame Df is subjected to processing of a radio frequency processing unit and is sent from a radio interface at the radio interface sending moment Tsend. The radio interface data synchronous processing method can be utilized to enable the data frames with the same frame number to be synchronously transmitted from the radio interfaces of all the radio equipment, and is capable of meeting the requirements of the wireless communication protocol for strict synchronization at the radio interface data sending time.

Description

technical field [0001] The present invention relates to the communication field, in particular to a method and device for air interface data synchronization processing. Background technique [0002] The Common Public Radio Interface (CPRI) alliance is an industrial cooperative organization dedicated to the main interface specifications between the radio equipment control center (Radio Equipment Control, REC) and the radio equipment (Radio Equipment, RE) inside the wireless base station formulation work. The Open Base Station Architecture Initiative (OBSAI) is an international organization that aims to promote the standardization of the internal interface of wireless communication base stations, and is also committed to realizing the radio equipment control center (Radio Equipment Control, REC) and wireless The interface between equipment (Radio Equipment, RE) is standardized. [0003] The two most used baseband radio frequency interface protocols in the world are Common Pu...

Claims

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Application Information

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IPC IPC(8): H04W28/14H04W28/26H04W56/00
CPCH04W56/0045
Inventor 董国立张瑜
Owner HUAWEI TECH CO LTD
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