Method for transmitting multiple system radio service IQ data by general public radio interface

A public wireless interface and wireless service technology, applied in wireless communication, connection management, network traffic/resource management, etc., can solve the problems of simultaneous transmission, IQ container mapping, system rate frame synchronization, etc., and achieve enhanced interface compatibility , simplify the transmission mechanism, and improve the effect of delay performance

Inactive Publication Date: 2006-11-08
HUAWEI TECH CO LTD
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Problems solved by technology

[0019] In practical application, the above scheme has the following problems: If the CPRI standard is extended to support other systems, and the line rate and frame structure of CPRI must be maintained unchanged, the mapping method of IQ data will not be like that of WCDMA data. mapping so easy
Since the system rate and the CPRI basic frame rate are not a simple multiple, the IQ data mapping of different systems will be more complicated than the mapping of WCDMA on the CPRI interface
However, the existing CPRI V2.0 wireless data transmission architecture cannot realize the transmission and frame synchronization of IQ data of other systems, especially the simultaneous transmission of wireless IQ data of various frame systems
In short, due to the simple multiple relationship between the CPRI basic frame rate

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  • Method for transmitting multiple system radio service IQ data by general public radio interface
  • Method for transmitting multiple system radio service IQ data by general public radio interface
  • Method for transmitting multiple system radio service IQ data by general public radio interface

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Embodiment Construction

[0057] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0058] In order to realize the transmission of wireless frames of multiple standards or systems on a common wireless interface, the service data of each system cycle must be carried on a unified basic frame, and the key to this problem lies in how to realize various IQ rates of different rates. The filling of data on the basic frame and the establishment of its synchronization mechanism. Due to changes in the system cycle, wireless frame length, and standard, relying on the original basic frame synchronization mechanism and frame number transmission cannot realize frame synchronization of different systems or IQ data filling of different data rates. What needs to be solved is the mapping method of IQ data of different standards in the CPRI IQ container and the det...

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Abstract

The present invention discloses universal public wireless interface transmission multi-system wireless service IQ data method to make CPRI interface capable of transmitting variety different system wireless service data. It contains according to CPRI basic frame cycle and system cyclic common multiple relation, setting M individual periodic IQ data in NCPRI basic frame to transmit, to make transaction data rate and CPRI interface rate matching convenient for realizing frame synchronization; uniformly filling M individual periodic IQ data in N CPRI basic frame IQ container, designing different kinds of filling mode to make IQ data reaching rate uniform through container mapping; through dividing same CPRI interface corresponding different RE and different system IQ data in CPRI basic frame IQ container, realizing variety different system IQ data in CPRI interface simultaneous transmission.

Description

technical field [0001] The invention relates to a technology for transmitting wireless service data by a common public radio interface, in particular to a method for transmitting IQ data of user planes of multiple wireless services of different standards on the common public radio interface. Background technique [0002] The Common Public Radio Interface (CPRI for short) is a specification about the internal key interface of a mobile communication wireless base station publicly published by a number of industry cooperation companies. The CPRI specification is a public specification on this key interface in the industry, providing a set of common standards for key internal interfaces of base stations. The CPRI is responsible for defining the key internal interface of the wireless base station between a radio equipment controller (Radio Equipment Controller, "REC" for short) and a radio equipment (Radio Equipment, "RE" for short). The goal of the standard is to create an open...

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Application Information

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IPC IPC(8): H04W28/18H04W28/22H04W56/00H04W76/04
CPCH04W72/12H04W28/06H04W28/18H04W28/22H04W56/00H04W76/20H04W88/06
Inventor 夏迎九蒋亚军
Owner HUAWEI TECH CO LTD
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