CN101925076B - Radio frequency remote equipment and distributed base station - Google Patents

Radio frequency remote equipment and distributed base station Download PDF

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Publication number
CN101925076B
CN101925076B CN 200910053003 CN200910053003A CN101925076B CN 101925076 B CN101925076 B CN 101925076B CN 200910053003 CN200910053003 CN 200910053003 CN 200910053003 A CN200910053003 A CN 200910053003A CN 101925076 B CN101925076 B CN 101925076B
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transmission data
module
cpri
radio
data
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CN101925076A (en
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汪雁
徐颂华
倪冬明
邵鸣怡
苏波
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Nokia Shanghai Bell Co Ltd
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Alcatel Lucent Shanghai Bell Co Ltd
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Abstract

The invention provides radio frequency remote equipment and a distributed base station. In the distributed base station, while sending an operation, the radio frequency remote equipment receives first standard data and processes the first standard data into first transmission data, the first transmission data is subjected to base band processing to obtain second transmission data, and then the second transmission data is subjected to radio frequency processing to obtain an antenna signal; and while receiving the operation, the ratio frequency remote equipment carries out reverse radio frequency processing on the antenna signal received by an antenna to obtain the second transmission data, the obtained second transmission data is subjected to the reverse base band processing to obtain the first transmission data; and the first transmission data obtained by the reverse base band processing is processed into the first standard data.

Description

Radio frequency remote equipment and distributed base station
Technical field
The present invention relates to the mobile communication technology field, be specifically related to a kind of distributed base station that is used for the radio frequency remote equipment of distributed base station and uses this radio frequency remote equipment.
Background technology
In moving communicating field; Distributed base station has become that mobile operator considers scheme at the emphasis of disposing the mobile network in the global range today; Remote radio unit (RRU) (RRH; RadioRemote Unit) links to each other through optical fiber and Base Band Unit (BBU, Base Band Unit), make radio frequency unit no longer be subject to building environment.Compare with traditional solution, network construction cost significantly reduces, and the network design time shortens greatly simultaneously, has represented the milestone of mobile communication base station technical development.In systems such as WCDMA, CDMA2000, GSM, TD-SCDMA, all introduce the distributed base station solution at present comprehensively.
In the structure of traditional G SM distributed base station, realize the processing of baseband portion realizing the processing of radio frequency part through the RRH of far-end through being installed on BBU in the machine room.This need be unfavorable for the steady evolution of original GSM base station for GSM develops a cover BBU+RRH separately.
Summary of the invention
In order to overcome above-mentioned defective, the invention provides a kind of radio frequency remote equipment, comprising: transport management module is disposed for receiving first normal data and said first normal data is processed into the first transmission data; Baseband module is disposed for receiving from the first transmission data of transport management module and to the first transmission data and carries out Base-Band Processing to obtain the second transmission data; And radio-frequency module, be disposed for the second transmission data from baseband module are carried out radio frequency processing so that obtain will be through the aerial signal of antenna transmission; Wherein said radio-frequency module also is configured for the aerial signal that antenna is received and carries out the reverse radio-frequency processing to obtain the second transmission data; Baseband module also be configured for to from radio-frequency module second the transmission data carry out reverse Base-Band Processing with obtain first the transmission data, and transport management module also be configured for from baseband module first the transmission data processing become first normal data.
Wherein, Above-mentioned transport management module can comprise transceiver (TRE; Transmit andReceive Equipment) Action Manager; Be sent to baseband module after being configured to when transmit operation to receive first normal data and will said first normal data to be processed into the first transmission data, when receiving operation, receive from the first transmission data of baseband module and will saidly transmit data processing and become first normal data to send via Ethernet afterwards from first of baseband module via Ethernet.
Preferably, above-mentioned radio frequency remote equipment can run under many standard environments, and said many standards comprise first standard and other standards.In this case; Said transport management module can also be configured for when transmit operation, to receive has passed through other normal datas of Base-Band Processing; Said other normal datas are processed into the 4th transmission are sent to radio-frequency module after the data, said radio-frequency module can also be configured for the 4th transmission data from transport management module are carried out radio frequency processing to obtain aerial signal; Said EM equipment module can also be configured to when receiving operation, aerial signal to be carried out reverse radio-frequency to be handled to obtain the 4th transmission data, and said transport management module can also be configured for the 4th transmission data processing from radio-frequency module is become corresponding other normal datas.
According to a kind of implementation of the present invention, said transport management module can comprise TRE Action Manager and common wireless interface (CPRI, Common Public Radio Interface) Action Manager.The TRE Action Manager is configured for when transmit operation the multi-standard certificate that receives the Abis form via Ethernet; With said multi-standard according in first normal data be sent to baseband module after being processed into the first transmission data; With said multi-standard according in be sent to the CPRI Action Manager after being processed into the 3rd transmission data through other normal datas of Base-Band Processing, the CPRI Action Manager is sent to radio-frequency module after being configured for the 3rd transmission data processing from the TRE Action Manager being become the 4th transmission data; The CPRI Action Manager is sent to the TRE Action Manager after being configured for and when receiving operation, will becoming the 3rd transmission data from the 4th transmission data processing of radio-frequency module; The TRE Action Manager is configured for the first transmission data processing from baseband module is become first normal data after sent by Ethernet, will become corresponding other normal datas after sent by Ethernet from the 3rd transmission data processing of CPRI Action Manager.
According to another kind of implementation of the present invention, said transport management module can comprise TRE Action Manager, CPRI Action Manager and CPRI interface.The CPRI interface is configured for when transmit operation and receives the multi-standard certificate of CPRI form or Abis form and said multi-standard certificate is sent to the CPRI Action Manager via CPRI optical fiber; The CPRI Action Manager be configured for said multi-standard according in first normal data be sent to the TRE Action Manager after being processed into the 3rd transmission data; With said multi-standard according in be sent to radio-frequency module after being processed into the 4th transmission data through other normal datas of Base-Band Processing, the TRE Action Manager is sent to baseband module after being configured for the 3rd transmission data processing from the CPRI Action Manager being become the first transmission data; The TRE Action Manager is sent to the CPRI Action Manager after being configured for and when receiving operation, will becoming the 3rd transmission data from the first transmission data processing of baseband module; The CPRI Action Manager is configured for and is sent to the CPRI interface with transmitting from the 3rd of TRE Action Manager after data processing becomes first normal data; Be sent to the CPRI interface after will being processed into corresponding other normal datas from the 4th normal data of radio-frequency module, the CPRI interface is configured for via CPRI optical fiber will be sent to connection device with other normal datas from first normal data of CPRI Action Manager.
Preferably, above-mentioned radio frequency remote equipment also comprises the multicarrier processing module, is connected between baseband module and the radio-frequency module, is used for multicarrier and handles.Can said multicarrier processing module be configured to carry out 6 road multicarriers handles.The above first standard is can be GSM standard, and said other standards can comprise UMTS standard and/or LTE standard or the like.
The present invention also provides a kind of distributed base station, comprising: connection device; Above-mentioned radio frequency remote equipment is connected to said connection device; And the antenna that is connected with said radio frequency remote equipment.Wherein, can be connected or connect through Ethernet between said radio frequency remote equipment and the connection device through CPRI optical fiber.Said connection device can be SUMX plate or distributed base station central box or have the BBU function.
In sum, can find out,, make that need not at near-end is that GSM disposes BBU equipment separately, has reduced system cost to a great extent owing to will place to the baseband module of GSM in the middle of the radio frequency remote equipment of far-end.Simultaneously, on the basis of existing many standards base station, improve slightly, for example, just can realize that the GSM under many standard environments zooms out scheme, realize that difficulty reduces greatly, help GSM evolution stably at the multiplexing many standards BBU of near-end or the SUMX that upgrades.
Description of drawings
Fig. 1 shows the structure according to the GSM distributed base station of first embodiment of the invention.
Fig. 2 shows the structure according to the GSM distributed base station of second embodiment of the invention.
Fig. 3 shows the structure according to many standard profile formula base station of third embodiment of the invention.
Fig. 4 shows the structure according to many standard profile formula base station of fourth embodiment of the invention.
Fig. 5 shows the structure according to many standard profile formula base station of fifth embodiment of the invention.
Fig. 6 shows the structure according to many standard profile formula base station of sixth embodiment of the invention.
Fig. 7 shows according to the GSM distributed base station of first embodiment of the invention transfer of data flow process when the transmit operation.
It is said that the GSM distributed base station that Fig. 8 shows according to first embodiment of the invention is receiving the defeated flow process of operation hour.
Fig. 9 shows according to many standard profile formula base station of fifth embodiment of the invention transfer of data flow process when the transmit operation.
Figure 10 shows the transfer of data flow process of many standard profile formula base station when receiving operation according to fifth embodiment of the invention.
Figure 11 shows according to many standard profile formula base station of sixth embodiment of the invention transfer of data flow process when the transmit operation.
Figure 12 shows the transfer of data flow process of many standard profile formula base station when receiving operation according to sixth embodiment of the invention.
Embodiment
First embodiment
Fig. 1 shows the structure according to the GSM distributed base station of first embodiment of the invention.The distributed base station of present embodiment comprises antenna 200, radio frequency remote equipment 100 and connection device 300.In the present embodiment, be connected through Ethernet between GSM radio frequency remote equipment 100 and the connection device 300.Radio frequency remote equipment 100 is positioned at far-end, for example is installed in antenna side, and connection device 300 is positioned at near-end, for example is installed in the machine room.
Radio frequency remote equipment 100 comprises transport management module 11, baseband module 12 and radio-frequency module 13.
As shown in Figure 7; When transmit operation; Connection device 300 will transfer to transport management module 11 through Ethernet from the GSM data of base station controller (not shown); Transport management module 11 is sent to baseband module 12 (step S101) after said GSM data processing is become the first transmission data; Baseband module 12 will carry out Base-Band Processing to obtain the second transmission data (step S102) from the first transmission data of transmission administration module 11, and 13 pairs of second transmission data from baseband module 12 of radio-frequency module are carried out radio frequency processing to obtain aerial signal, and the aerial signal that obtains is sent (step S103) through antenna 200.
As shown in Figure 8; When receiving operation; The aerial signal that radio-frequency module 13 receives antenna 200 is sent to baseband module 12 (step S201) after being processed into the second transmission data; 12 pairs of second transmission data from radio-frequency module 13 of baseband module are carried out reverse Base-Band Processing to obtain the first transmission data (step S202); Transport management module 11 will be sent to connection device 300 through Ethernet after will becoming corresponding GSM data from the first transmission data processing of baseband module 12, and connection device 300 will be sent to base station controller (step S203) from the GSM data of transmission administration module 11.
In the present embodiment, transport management module 11 can comprise TRE Action Manager (TREO&M) 01, is carried out the action of above-mentioned transport management module 11 by TRE Action Manager 01.When transmit operation; TRE Action Manager 01 can be handled Abis (OML, RSL, TCH, the GCH) data (data of just transmitting through the Abis interface between BSC and the BTS) that receive; Thereby obtain layer one message according to the GSM data that receive, that is, and the first transmission data.When receiving operation, TRE Action Manager 01 can become the Abis data with layer one Message Processing from baseband module, to be sent to base station controller through connection device 300.
Baseband module 12 can comprise ABB part and digital baseband part, and ABB has partly been realized when transmit operation the digital-to-analogue conversion to signal, and when receiving operation to the analog-to-digital conversion of signal.Digital baseband part is accomplished channel equalization, chnnel coding and speech data encoding and decoding.That is, baseband module 12 can be realized Base-Band Processing and reverse Base-Band Processing.
Radio-frequency module 13 can be modulated so that send to antenna 200 signal when transmit operation.For example, radio-frequency module is processed into 900 or the data (aerial signal) of 1800MHz with the I/Q data of the every carrier frequency of 26MHz (the second transmission data), so that through antenna 200 these data are sent, thereby realizes radio frequency processing.Radio-frequency module 13 when receiving operation can through appropriate signals handle to by antenna detection to signal carry out analog-to-digital conversion and digital processing; For example; With 900 or the data processing of 1800MHz become the I/Q data of the every carrier frequency of 26MHz so that be sent to baseband module 12, thereby realize that reverse radio-frequency handles.
Connection device 300 can be SUMX (Station Unit Module extreme) plate, distributed base station central box or can be implemented in any other device of communicating by letter between base station controller and the radio frequency remote equipment; Also can be connection device with BBU function, for example can multiplexing existing many standards BBU equipment as connection device 300.This has implemented employing SUMX plate as connection device 300.Generally speaking, the SUMX plate has following function: transfer function provides E1 transmission or Ethernet transmission; The Operation and Maintenance function is responsible for each module software of BTS and is downloaded initialization and configuration; Be responsible for alarming processing; Be responsible for the local operation terminal; The clock synchronization function; And internal interface management function.
In addition, radio frequency remote equipment 100 can also comprise the multicarrier processing module between radio-frequency module and baseband module, is used to carry out multicarrier and handles.In the present embodiment, said multicarrier module is configured to carry out the processing of 6 road multicarriers.Yet it will be understood by those skilled in the art that can also as required said multicarrier block configuration be become to carry out 4 road multicarriers handles, or the like.Thereby realize advantages such as high density, low-power consumption.
Second embodiment
Fig. 2 shows the structure according to the GSM distributed base station of second embodiment of the invention.Radio frequency remote equipment 100 is positioned at far-end, for example is installed in antenna side, and connection device 300 is positioned at near-end, for example is installed in the machine room.
The difference of second embodiment and first embodiment is that in a second embodiment, radio frequency remote equipment 100 is connected with connection device 300 through CPRI optical fiber.In this case, the transport management module 11 in the radio frequency remote equipment 100 comprises: TRE Action Manager (TREO&M) 01, CPRI Action Manager (CPRI O&M) 02 and CPRI interface 03.
When transmit operation; The GSM data arrive CPRI interface 03 via CPRI optical fiber from base station controller through connection device 300 again; Arrive CPRI Action Manager 02 through CPRI interface 03; CPRI Action Manager 02 will become the 3rd transmission data from the GSM data processing of CPRI interface 03, and in this case, said the 3rd transmission data can be the Abis data of GSM standard.Said the 3rd transmission data arrive baseband module 12 after handling stratification 1 message through TRE Action Manager 01 again.Send through antenna 200 afterwards through the Base-Band Processing of baseband module 12, the radio frequency processing of radio-frequency module 13 then.
When receiving operation; The order that signal transmits is opposite with transmit operation; The signal that antenna 200 receives is processed into the second transmission data through radio-frequency module 13 successively; Be processed into the first transmission data through baseband processing module 12, and then be processed into the 3rd data (the Abis data of GSM standard), be processed into the GSM data that are suitable for the baseband controller processing through CPRI Action Manager 02 through TRE Action Manager 01; Last CPRI interface 03 will be sent to connection device 300 through CPRI optical fiber from GSM digital data CPRI Action Manager 02, that be suitable for the baseband controller processing, thereby transfer to base station controller via connection device 300.
The radio frequency remote equipment of the embodiment of the invention can also be used under many standard environments, that is, the distributed base station of the embodiment of the invention can also be many standards base station, and said many standards can comprise GSM standard, LTE standard, UMTS standard or the like.
The 3rd embodiment
Fig. 3 shows the structure according to many standard profile formula base station of third embodiment of the invention.The distributed base station of present embodiment is suitable for handling other normal datas except the GSM data, for example LTE data and UMTS data or the like.Be similar to first embodiment, in this embodiment, distributed base station comprises antenna 200, radio frequency remote equipment 100 and connection device 300.Be connected through Ethernet between GSM radio frequency remote equipment 100 and the connection device 300.Radio frequency remote equipment 100 is positioned at far-end, for example is installed in antenna side, and connection device 300 is positioned at near-end, for example is installed in the machine room.Radio frequency remote equipment 100 comprises transport management module 11 and radio-frequency module 13.
Be with the difference of first embodiment:
Because present embodiment to other standards, so need not the baseband module to GSM in the radio frequency remote equipment 100, and for the Base-Band Processing of other standards in near-end completion (baseband processing equipment of also not shown this operation of realization here).
2. the transmission control module 11 in the radio frequency remote equipment 100 comprises TRE operation control 01 and CPRI operation control 02.
When transmit operation, the UMTS/LTE data that connection device 300 will pass through Base-Band Processing transfer to the transmission control module 11 of radio frequency remote equipment 100 via Ethernet.These data are processed into the 3rd transmission data (in this case through TRE Action Manager 01; Said the 3rd transmission data can be the I/Q data to other standards); CPRI Action Manager 02 (for example becomes the 4th transmission data with said the 3rd transmission data processing; The I/Q data of the every carrier frequency of 26MHz), radio-frequency module 13 will become to be suitable for the signal of antenna 200 emissions from the 4th transmission data processing of CPRI Action Manager 02, and this signal is sent through antenna 200.
When receiving operation; The signal that antenna 200 receives is processed into the 4th transmission data through radio-frequency module 13 reverse radio-frequencies; After said the 4th transmission data are processed into the 3rd transmission data (to the I/Q data of other standards) through CRPI Action Manager 02; Be processed into UMTS/LTE I/Q sampled data through TRE Action Manager 01 again, these data are passed through Ethernet by connection device 300 reverse Base-Band Processing at last.
The 4th embodiment
Fig. 4 shows the structure according to many standard profile formula base station of fourth embodiment of the invention.The distributed base station of present embodiment is suitable for handling other normal datas except the GSM data, for example LTE data and UMTS data or the like.Be similar to second embodiment, in this embodiment, distributed base station comprises antenna 200, radio frequency remote equipment 100 and connection device 300 equally.Be connected through CPRI optical fiber between GSM radio frequency remote equipment 100 and the connection device 300.Radio frequency remote equipment 100 is positioned at far-end, for example is installed in antenna side, and connection device 300 is positioned at near-end, for example is installed in the machine room.Radio frequency remote equipment 100 comprises transport management module 11 and radio-frequency module 13.
Be with the difference of second embodiment:
Because present embodiment to other standards,, and accomplish at near-end for the Base-Band Processing and the anti-Base-Band Processing of other standards so in radio frequency remote equipment 100, need not to be directed against the baseband module of GSM.For briefly, the baseband processing equipment of also not shown this operation of realization here.
2. the transmission control module 11 in the radio frequency remote equipment 100 comprises CPRI operation control 02 and CPRI interface 03.
When transmit operation; The UMTS/LTE data that connection device 300 will pass through Base-Band Processing via the CPRI Optical Fiber Transmission to CPRI interface 03; Data (having passed through Base-Band Processing) arrive CPRI Action Manager 02 via CPRI interface 03 then, are processed into the 4th transmission data (for example, the I/Q data of the every carrier frequency of 26MHz) back through Action Manager 02 and arrive radio-frequency module 13; After process radio-frequency module 13 is processed into and is suitable for antenna antenna transmission signal again, be sent out away via antenna 200.
When receiving operation; The aerial signal reverse radio-frequency that radio-frequency module 13 receives antenna is processed into the 4th transmission data; The 4th transmission data are processed into UMTS/LTE I/Q sampled data through CPRI operational administrative module 02 again; UMTS/LTE I/Q sampled data arrives CPRI interface 03 then, mails to connection device 300 via CPRI optical fiber again.
The 5th embodiment
Present embodiment has combined first embodiment and the 3rd embodiment.
Fig. 5 shows the structure according to many standard profile formula base station of fifth embodiment of the invention.The distributed base station of present embodiment is suitable for handling the multi-standard certificate that comprises GSM data and other normal datas (for example LTE data and UMTS data or the like).In this embodiment, distributed base station comprises antenna 200, radio frequency remote equipment 100 and connection device 300 (in the present embodiment, think and do not dispose BBU equipment, adopt the SUMX plate as connection device) equally.Be connected through Ethernet between GSM radio frequency remote equipment 100 and the connection device 300.Radio frequency remote equipment 100 is positioned at far-end, for example is installed in antenna side, and connection device 300 is positioned at near-end, for example is installed in the machine room.Radio frequency remote equipment 100 comprises transport management module 11, baseband module 12 and radio-frequency module 13.Transmission control module 11 comprises TRE operation control 01 and CPRI operation control 02.
As shown in Figure 9, when transmit operation:
Connection device 300 transfers to TRE Action Manager 01 (step S301) with the multi-standard of Abis form according to connecing via Ethernet.
01 pair of multi-standard that is received of TRE Action Manager matees to judge that the data that received are GSM data or LTE/UMTS data (step S302) according to affiliated type; Be sent to baseband module (step S303) after said multi-standard become the first transmission data according to central GSM data processing; With said multi-standard according in be sent to CPRI Action Manager (step S304) after having become the 3rd transmission data I/Q data of LTE/UMTS standard (for example, to) through the LTE/UMTS data processing of Base-Band Processing.
12 pairs of first transmission data from TRE Action Manager 01 of baseband module are carried out Base-Band Processing to obtain the second transmission data; Radio-frequency module 13 will become to be suitable for the data that antenna 200 sends from the second transmission data radio frequency processing of baseband module 12 then, and send (step S305) through antenna 200.
CPRI Action Manager 02 will become the 4th transmission to be sent to radio-frequency module 13 after the data from the 3rd transmission data processing of TRE Action Manager 01, and radio-frequency module 13 will said the 4th transmission data radio frequency processing becomes to be suitable for to send (step S306) through antenna 200 behind the signal of antenna 200 transmissions.
Shown in figure 10, when receiving operation:
The aerial signal reverse radio-frequency that radio-frequency module 13 receives antenna 200 is processed into the second transmission data and the 4th transmission data (step S401).
Baseband module 12 will be sent to TRE Action Manager 01 (step S402) after will becoming the first transmission data from the second transmission data back Base-Band Processing of radio-frequency module 13.
CPRI Action Manager 02 will be sent to TRE Action Manager 01 (step S403) after will becoming the 3rd transmission data (in this case, said the 3rd transmission data can be the I/Q data to the LTE/UMTS standard) from the 4th transmission data processing of radio-frequency module 13.
The GSM data that TRE Action Manager 01 will become the Abis form from the first transmission data processing of baseband module 12 are after be sent to connection device by Ethernet; To transfer out through connection device; To become the LTE/UMTS data of corresponding Abis form after be sent to connection device from the 3rd transmission data processing of CPRI Action Manager 02, to transfer out (step S404) through connection device by Ethernet.
The 6th embodiment
Present embodiment has combined second embodiment and the 4th embodiment.
Fig. 6 shows the structure according to many standard profile formula base station of sixth embodiment of the invention.The distributed base station of present embodiment is suitable for handling the multi-standard certificate that comprises GSM data and other normal datas (for example LTE data and UMTS data or the like).In this embodiment, distributed base station comprises antenna 200, radio frequency remote equipment 100 and connection device 300 (thinking in the present embodiment and disposed many standards BBU equipment that multiplexing existing many standards BBU equipment is as connection device 300).Be connected through CPRI optical fiber between GSM radio frequency remote equipment 100 and the connection device 300.Radio frequency remote equipment 100 is positioned at far-end, for example is installed in antenna side, and connection device 300 is positioned at near-end, for example is installed in the machine room.Radio frequency remote equipment 100 comprises transport management module 11, baseband module 12 and radio-frequency module 13.Transmission control module 11 comprises TRE operation control 01, CPRI operation control 02 and CPRI interface 03.
Shown in figure 11, when transmit operation:
Connection device 300 with the multi-standard of CPRI form or Abis form according to via the CPRI Optical Fiber Transmission to CPRI interface 03, CPRI interface 03 with said multi-standard according to being sent to CPRI Action Manager 02 (step S501).
CPRI Action Manager 02 will mate according to affiliated type from the multi-standard of CPRI interface 03; GSM data processing is wherein become the 3rd transmission data (in this case; Said the 3rd transmission data are Abis data of GSM standard) after be sent to TRE Action Manager 01 (step S502), after wherein having become the 4th transmission data through the UMTS/LTE data processing of Base-Band Processing, be sent to radio-frequency module 13 (step S503).
TRE Action Manager 01 will be sent to baseband module 12 after will becoming the first transmission data from the 3rd transmission data processing of CPRI Action Manager 02; Become the second transmission data by baseband module 12 Base-Band Processing; Become to be suitable for the signal that antenna 200 sends by radio-frequency module 13 radio frequency processing again, by antenna 200 this signal is sent (step S504) again.
Radio-frequency module 13 will become to be suitable for the signal of antenna 200 transmissions and this signal is sent (step S505) through antenna 200 from the 4th transmission data radio frequency processing of CPRI Action Manager 02.
Shown in figure 12, when receiving operation:
The aerial signal reverse radio-frequency that radio-frequency module 13 receives antenna 200 is processed into the second transmission data and the 4th transmission data (step S601).
Baseband module 12 will be sent to TRE Action Manager 01 after will becoming the first transmission data from the second transmission data back Base-Band Processing of radio-frequency module 13, and TRE Action Manager 01 will be sent to CPRI Action Manager 02 (step S602) after will becoming the 3rd transmission data (data of the Abis form of GSM standard) from the first transmission data processing of baseband module 12.
CPRI Action Manager 02 will be sent to CPRI interface 02 (step 603) after becoming the GSM data from the 3rd transmission data processing of TRE Action Manager 01, be sent to CPRI interface 03 (step 604) after will being processed into corresponding UMTS/LTE data from the 4th normal data of radio-frequency module 13.
CPRI interface 03 will be sent to connection device (step 605) from the GSM data and the UMTS/LTE data of CPRI Action Manager 02 via CPRI optical fiber.
In the above-described embodiments:
Baseband module 12 can comprise ABB part and digital baseband part, and ABB has partly been realized when transmit operation the digital-to-analogue conversion to signal, and when receiving operation to the analog-to-digital conversion of signal.Digital baseband part is accomplished channel equalization, chnnel coding and speech data encoding and decoding.For example; When transmit operation, (for example transmit data with first; The GSM low-frequency data of 27kHz) after modulation and digital-to-analogue conversion, obtains the second transmission data (for example, the I/Q data of the every carrier frequency of 26MHz), thereby realize Base-Band Processing; When receiving operation, the second transmission data are obtained the first transmission data after analog-to-digital conversion and demodulation, thereby realize reverse Base-Band Processing.
Radio-frequency module 13 can be modulated so that send to antenna signal when transmit operation; Promptly; For example, TX (PA) part is processed into 900 or the aerial signal of 1800MHz with the I/Q data (for the second transmission data of GSM standard, the transmission of the 4th during for other standards data) of the every carrier frequency of 26MHz; So that these data are sent, thereby realize radio frequency processing through antenna.Radio-frequency module 13 when receiving operation can through appropriate signals handle to by antenna detection to signal carry out analog-to-digital conversion and digital processing; For example; RX part with 900 or the aerial signal of 1800MHz be processed into the I/Q data of the every carrier frequency of 26MHz so that be sent to baseband module 12, thereby realize that reverse radio-frequency handles.
CPRI interface 03 can be one or more, specifically decides as required.For briefly, only show a CPRI interface 03 in the drawings.
Connection device 300 can be SUMX plate, distributed base station central box, also can be the connection device with BBU function.
In above-mentioned first embodiment, second embodiment, the 5th embodiment and the 6th embodiment:
Radio frequency remote equipment 100 can also comprise the multicarrier processing module between radio-frequency module and baseband module, is used to carry out multicarrier and handles.In the present embodiment, said multicarrier module is configured to carry out the processing of 6 road multicarriers.Yet it will be understood by those skilled in the art that can also as required said multicarrier block configuration be become to carry out 4 road multicarriers handles, or the like.Thereby realize advantages such as high density, low-power consumption.
In the present invention, can no longer transmit the I/Q data between BBU and the RRH, but multiplexing Abis data.
In sum, can find out,, make that need not at near-end is that GSM disposes BBU equipment separately, has reduced system cost to a great extent owing to will place to the baseband module of GSM in the middle of the radio frequency remote equipment of far-end.Simultaneously, on the basis of existing many standards base station, improve slightly, for example add the baseband module and the SUMX that upgrades, just can realize that the GSM under many standard environments zooms out scheme, realize that difficulty reduces greatly, help GSM evolution stably to GSM at far-end.
Specification and accompanying drawing only show principle of the present invention.Therefore should be appreciated that those skilled in the art can advise various structure,, embodied principle of the present invention and be included within its spirit and the scope though these various structure are not clearly described herein or illustrated.In addition, all examples of here mentioning mainly only are used for the design of teaching purpose with help reader understanding's principle of the present invention and promotion this area that the inventor was contributed clearly, and should be interpreted as the restriction that is not these specific examples of mentioning and condition.In addition, all statement and specific examples thereof of mentioning principle of the present invention, aspect and execution mode comprise its equivalent interior here.
Top description only is used to realize execution mode of the present invention; It should be appreciated by those skilled in the art; In any modification that does not depart from the scope of the present invention or local replacement; All should belong to claim of the present invention and come restricted portion, therefore, protection scope of the present invention should be as the criterion with the protection range of claims.

Claims (12)

1. radio frequency remote equipment that is used for distributed base station comprises:
Transport management module is disposed for receiving first normal data and said first normal data is processed into the first transmission data;
Baseband module is disposed for receiving from the first transmission data of transport management module and to the first transmission data and carries out Base-Band Processing to obtain the second transmission data; And
Radio-frequency module is disposed for the second transmission data from baseband module are carried out radio frequency processing so that obtain will be through the aerial signal of antenna transmission;
Wherein said radio-frequency module also is configured for the aerial signal that antenna is received and carries out the reverse radio-frequency processing to obtain the second transmission data; Baseband module also be configured for to from radio-frequency module second the transmission data carry out reverse Base-Band Processing with obtain first the transmission data, and transport management module also be configured for from baseband module first the transmission data processing become first normal data.
2. radio frequency remote equipment according to claim 1; Wherein said transport management module comprises the TRE Action Manager; Be sent to baseband module after being configured to when transmit operation to receive first normal data and will said first normal data to be processed into the first transmission data, when receiving operation, receive from the first transmission data of baseband module and will saidly transmit data processing and become first normal data to send via Ethernet afterwards from first of baseband module via Ethernet.
3. radio frequency remote equipment according to claim 1, wherein said radio frequency remote equipment run under many standard environments, and said many standards comprise first standard and other standards,
Said transport management module also is configured for when transmit operation, to receive has passed through other normal datas of Base-Band Processing; Said other normal datas are processed into the 4th transmission are sent to radio-frequency module after the data, said radio-frequency module also is configured for the 4th transmission data from transport management module is carried out radio frequency processing to obtain aerial signal;
Said radio-frequency module also is configured to when receiving operation, aerial signal to be carried out reverse radio-frequency to be handled to obtain the 4th transmission data, and said transport management module also is configured for the 4th transmission data processing from radio-frequency module is become corresponding other normal datas.
4. radio frequency remote equipment according to claim 3, wherein said transport management module comprise TRE Action Manager and CPRI Action Manager,
Said TRE Action Manager is configured for when transmit operation the multi-standard certificate that receives the Abis form via Ethernet; With said multi-standard according in first normal data be sent to baseband module after being processed into the first transmission data; With said multi-standard according in be sent to the CPRI Action Manager after being processed into the 3rd transmission data through other normal datas of Base-Band Processing, the CPRI Action Manager is sent to radio-frequency module after being configured for the 3rd transmission data processing from the TRE Action Manager being become the 4th transmission data;
Said CPRI Action Manager is configured for and when receiving operation, is used for being sent to the TRE Action Manager with transmitting from the 4th of radio-frequency module after data processing becomes the 3rd transmission data; Said TRE Action Manager is configured for the first transmission data processing from baseband module is become first normal data after sent by Ethernet, will become corresponding other normal datas after sent by Ethernet from the 3rd transmission data processing of CPRI Action Manager.
5. radio frequency remote equipment according to claim 3, wherein said transport management module comprise TRE Action Manager, CPRI Action Manager and CPRI interface,
The CPRI interface is configured for when transmit operation and receives the multi-standard certificate of CPRI form or Abis form and said multi-standard certificate is sent to the CPRI Action Manager via CPRI optical fiber; The CPRI Action Manager be configured for said multi-standard according in first normal data be sent to the TRE Action Manager after being processed into the 3rd transmission data; With said multi-standard according in be sent to radio-frequency module after being processed into the 4th transmission data through other normal datas of Base-Band Processing, the TRE Action Manager is sent to baseband module after being configured for the 3rd transmission data processing from the CPRI Action Manager being become the first transmission data;
The TRE Action Manager is sent to the CPRI Action Manager after being configured for and when receiving operation, will becoming the 3rd transmission data from the first transmission data processing of baseband module; The CPRI Action Manager is configured for and is sent to the CPRI interface with transmitting from the 3rd of TRE Action Manager after data processing becomes first normal data; Be sent to the CPRI interface after will being processed into corresponding other normal datas from the 4th normal data of radio-frequency module, the CPRI interface is configured for via CPRI optical fiber will be sent to connection device with other normal datas from first normal data of CPRI Action Manager.
6. according to each described radio frequency remote equipment in the claim 1 to 5, also comprise the multicarrier processing module, be connected between baseband module and the radio-frequency module, be used for multicarrier and handle.
7. radio frequency remote equipment according to claim 6 wherein is configured to carry out 6 road multicarriers with said multicarrier processing module and handles.
8. according to each described radio frequency remote equipment in the claim 3 to 5, wherein said first standard is a GSM standard, and said other standards comprise UMTS standard and/or LTE standard.
9. distributed base station comprises:
Connection device;
According to one of any described radio frequency remote equipment of claim 1～8, be connected to said connection device; And
The antenna that is connected with said radio frequency remote equipment.
10. be connected through Ethernet between the distributed base station according to claim 9, wherein said radio frequency remote equipment and connection device.
11. be connected through CPRI optical fiber between the distributed base station according to claim 9, wherein said connection device and said radio frequency remote equipment.
12. according to each described distributed base station in the claim 9 to 11, wherein said connection device is SUMX plate or distributed base station central box or has the BBU function.
CN 200910053003 2009-06-09 2009-06-09 Radio frequency remote equipment and distributed base station Active CN101925076B (en)

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CN105450609B (en) * 2014-08-29 2018-11-20 上海诺基亚贝尔股份有限公司 Frequency domain CPRI frame packaging method and BBU
CN105611656A (en) * 2015-09-25 2016-05-25 巫立斌 Distributed base station based on Internet of things

Citations (3)

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Publication number Priority date Publication date Assignee Title
CN1661941A (en) * 2004-02-23 2005-08-31 华为技术有限公司 Distributed base stations and data interactive method
EP1742494A1 (en) * 2004-04-09 2007-01-10 Utstarcom Telecom Co., Ltd A method and system of signal transmission based on radio frequency stretch base station
CN201238386Y (en) * 2008-07-30 2009-05-13 京信通信系统（中国）有限公司 Multi-frequency band digital radio frequency zooming system

Patent Citations (3)

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Publication number Priority date Publication date Assignee Title
CN1661941A (en) * 2004-02-23 2005-08-31 华为技术有限公司 Distributed base stations and data interactive method
EP1742494A1 (en) * 2004-04-09 2007-01-10 Utstarcom Telecom Co., Ltd A method and system of signal transmission based on radio frequency stretch base station
CN201238386Y (en) * 2008-07-30 2009-05-13 京信通信系统（中国）有限公司 Multi-frequency band digital radio frequency zooming system

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