Method, equipment and system for transmitting common public radio interface data

A technology of public wireless interface and data transmission method, applied in wireless communication, communication between multiple stations, electrical components, etc., can solve the problems of unreachable optical fiber, not supporting CPRI client signals, etc., to achieve the effect of improving flexibility

Active Publication Date: 2011-07-06
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In the process of realizing the present invention, the inventors found that there are at least the following problems in the prior art: the traditional wireless base station integrates the RRU and the BBU on one device, but the distributed base station system sets the RRU and the BBU separately, resulting in a gap between the RRU and the BBU. There is a problem that the optical fiber is not reachable, and the existing microwave equipment only supports customer signals such as E1 and ETH, and does not support a new customer signal such as CPRI

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  • Method, equipment and system for transmitting common public radio interface data
  • Method, equipment and system for transmitting common public radio interface data
  • Method, equipment and system for transmitting common public radio interface data

Examples

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Embodiment 1

[0037] An embodiment of the present invention provides a general public radio interface data transmission method, such as figure 1 As shown, the method includes:

[0038] Step 101, receiving GPRI data;

[0039] Step 102, synchronizing the UPRI data to generate a UPRI superframe header indication signal;

[0040] In this embodiment, the synchronous processing of the data of the Common Public Radio Interface (CPRI) is specifically: searching for the synchronization byte K28.5 of the control word Z.0.0 in the CPRI superframe, and the superframe number of the control word Z.64.0 HFN, thereby obtaining CPRI superframe synchronization. Then the CPRI frame synchronization can be further realized on the basis of the CPRI superframe synchronization, and the CPRI superframe header indication signal can be obtained;

[0041] Step 103, generating general public radio interface basic frame frame format information according to the general public radio interface superframe header indicat...

Embodiment 2

[0046] An embodiment of the present invention provides a general public radio interface data transmission method, such as figure 2 As shown, the method includes:

[0047] Step 201, receiving Common Public Radio Interface (CPRI) data;

[0048] Step 202, synchronizing the CPRI data to generate a CPRI superframe header indication signal;

[0049] In this embodiment, the synchronization processing of parallel CPRI data is specifically: searching for the synchronization byte K28.5 of the control word Z.0.0 in the CPRI superframe, and the superframe number HFN of the control word Z.64.0, thereby obtaining the CPRI Superframe synchronization. Then the CPRI frame synchronization can be further realized on the basis of the CPRI superframe synchronization, and the CPRI superframe header indication signal can be obtained;

[0050] Step 203, generating CPRI basic frame frame format information according to the CPRI superframe header indication signal and preset adaptive modulation par...

Embodiment 3

[0079] An embodiment of the present invention provides a general public radio interface data transmission method, such as Figure 4 As shown, the method includes:

[0080] Step 401, receiving CPRI data sent by the baseband processing unit BBU;

[0081] Step 402, converting the CPRI data into microwave data and sending it to a microwave device connected to the receiving remote radio unit RRU.

[0082] Wherein, the specific process of converting the CPRI data into microwave data is the same as the above embodiment, and will not be repeated here.

[0083] The above embodiments provide a method for sending CPRI data, which can compress the CPRI data and convert it into microwave data for sending, so that the CPRI data can be transmitted between the BBU and the RRU through microwave.

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Abstract

The embodiment of the invention provides a method, equipment and a system for transmitting common public radio interface data. The method comprises the following steps of: receiving the common public radio interface data; performing a synchronization processing on the common public radio interface data to generate a hyper-frame frame head index signal of a common public radio interface; generating the frame format information of a basic frame of the common public radio interface according to the hyper-frame frame head index signal of the common public radio interface and a predetermined adaptive modulation parameter; generating a compressed frame of the common public radio interface according to the hyper-frame frame head index signal of the common pubic radio interface, the adaptive modulation parameters and the frame format information of the basic frame of the common pubic radio interface; and generating microwave data according to the compressed frame of the common pubic radio interface and the frame format information of the basic frame and transmitting the microwave data. In the method, the equipment and the system, the common public radio interface data can be transmitted by using microwave equipment, so that a distributed base station system can use the microwave equipment and the flexibility of equipment deployment is improved.

Description

technical field [0001] The invention relates to the field of mobile communication, in particular to a method, device and system for transferring data of a general public radio interface. Background technique [0002] The mobile communication system is composed of a core network (Core Network, CN), a radio access network (Universal Terrestrial Radio Access Network, UTRAN) and a user equipment (User Equipment, UE). The wireless access network consists of a base station (Base Transceiver Station, BTS) and a base station controller (Base Transceriver Control, BSC) or radio network controller (Radio Network Control, RNC) for controlling multiple base stations. Traditional wireless base stations The baseband unit and the radio frequency unit are integrated together and cannot be completely separated. When the baseband unit is added, the radio frequency unit must also be added, which leads to waste of radio frequency unit resources and is not conducive to network construction. [...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/26H04W92/00
Inventor 蒋红丽胡幸李昆
Owner HUAWEI TECH CO LTD
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