CN103916877B - The method and Remote Radio Unit of a kind of signal transacting - Google Patents
The method and Remote Radio Unit of a kind of signal transacting Download PDFInfo
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Abstract
The present embodiments relate to communication technical field, the method and Remote Radio Unit of more particularly to a kind of signal transacting, during solving to be directed to multiple types present in prior art, it is difficult to be managed concentratedly to mobile communications network corresponding to the multiple types of establishment and the problem of unified planning.The method of signal transacting provided in an embodiment of the present invention includes：The sampling rate value of the baseband signal from BBU received is converted into the sampling rate value of setting with the radio frequency remote unit RRU that each baseband processing unit BBU of multiple types is connected；RRU determines radiofrequency signal according to the baseband signal after conversion, and launches radiofrequency signal by least one antenna.The embodiment of the present invention is realized using multiple types BBU and a RRU networking, is reduced and the network of establishment is managed concentratedly and the difficulty of unified planning.
Description
Technical field
The present invention relates to communication technical field, the method and Remote Radio Unit of more particularly to a kind of signal transacting.
Background technology
BBU（Baseband processing unit）And RRU（Remote Radio Unit）Networking, also known as distributed base station.Wherein, BBU
Networking principle with RRU is exactly that the baseband portion and radio frequency part of conventional macro base station are separated, and is respectively classified into BBU and RRU two
Equipment, BBU are responsible for the processing and transmission of baseband signal, and RRU is responsible for the baseband signal from BBU being converted into radiofrequency signal, from
Antenna is launched, and the radiofrequency signal received from antenna is converted into baseband signal, BBU is sent to, between BBU and RRU
Connected by optical fiber.BBU and RRU networking mode has the characteristics of quick, economy, resource utilization are high compared with macro base station, at present
Large-scale application is in mobile communications network construction.
During current mobile communications network is built, using a kind of standard BBU and RRU networking mode, such as Fig. 1 and figure
Shown in 2, in Fig. 1, single system computer room（That is, equipped with a kind of standard BBU computer room）One RRU is connected to by an optical fiber；
As shown in Fig. 2 it is directed to multi-standard computer room（That is, the computer room equipped with multiple types BBU）In every kind of standard BBU, pass through a light
Fibre is connected to a RRU.
In being built due to current mobile communications network, using a kind of standard BBU and RRU networking mode, thus
For every kind of standard, it is necessary to individually carry out networking, when multiple types be present, it is necessary to scattered more set RRU devices respectively with it is right
The BBU building networks answered, it is difficult to the network of establishment is managed concentratedly and unified planning, and the cost of operation maintenance network
It is very high, and then the development of mobile communications network is hindered to a certain extent.
In summary, in being built due to current mobile communications network, using a kind of standard BBU and a RRU networking
Mode, thus when being directed to multiple types, it is difficult to be managed concentratedly to the network of establishment and unified planning.
The content of the invention
The method and Remote Radio Unit of a kind of signal transacting provided in an embodiment of the present invention, to solve in the prior art
It is existing when being directed to multiple types, it is difficult to be managed concentratedly to mobile communications network corresponding to the multiple types of establishment and uniformly
The problem of planning.
A kind of method of signal transacting provided in an embodiment of the present invention, including：
It will be received with each baseband processing unit BBU of multiple types radio frequency remote unit RRUs being connected from BBU's
The sampling rate value of baseband signal is converted into the sampling rate value of setting；
RRU determines radiofrequency signal according to the baseband signal after conversion, and launches radiofrequency signal by least one antenna.
A kind of method of signal transacting provided in an embodiment of the present invention, including：
The radiofrequency signal that will be received with each baseband processing unit BBU of multiple types radio frequency remote unit RRUs being connected
It is converted into baseband signal of the sampling rate value for the sampling rate value of setting；
The sampling rate value of the baseband signal after conversion is converted for the BBU for each standard being connected with RRU, RRU
For the sampling rate value of baseband signal corresponding to the BBU, and the baseband signal after conversion is sent to the BBU.
A kind of radio frequency remote unit RRU provided by the invention, including：
First modular converter, for by the sampling rate of the baseband signal from each baseband processing unit BBU received
Value is converted into the sampling rate value of setting；
First processing module, for determining radiofrequency signal according to the baseband signal after conversion, and pass through at least one antenna
Launch radiofrequency signal.
A kind of radio frequency remote unit RRU provided by the invention, including：
Second modular converter, for the radiofrequency signal received to be converted into sampling rate value of the sampling rate value for setting
Baseband signal；
Second processing module, for the BBU of each standard for being connected with RRU, by the baseband signal after conversion
Sampling rate value is transformed to the sampling rate value of baseband signal corresponding to the BBU, and the baseband signal after conversion is sent into this
BBU。
In embodiments of the present invention, the baseband signal from BBU that will be received with the RRU that the BBU of multiple types is connected
Sampling rate value be converted into setting sampling rate value；RRU determines radiofrequency signal according to the baseband signal after conversion, and passes through
At least one antenna launches radiofrequency signal；And the Remote Radio Unit being connected with each baseband processing unit BBU of multiple types
The radiofrequency signal received is converted into baseband signal of the sampling rate value for the sampling rate value of setting by RRU；For connecting with RRU
The sampling rate value of baseband signal after conversion is transformed to base band corresponding to the BBU by the BBU of each standard connect, RRU to be believed
Number sampling rate value, and the baseband signal after conversion is sent to the BBU, due to baseband signal corresponding to different systems BBU
Sampling rate value it is different, for descending process, RRU changes the sampling rate value of the baseband signal from BBU received
Into the sampling rate value of setting, it is determined that radiofrequency signal corresponding to baseband signal after conversion, is launched by least one antenna
Go, for up process, radiofrequency signal that RRU will receive from antenna, be converted into sampling rate of the sampling rate value for setting
The baseband signal of value, for the BBU for each standard being connected with RRU, the sampling rate value of the baseband signal after conversion is become
The sampling rate value of baseband signal corresponding to the BBU is changed to, and is sent to the BBU, it is achieved thereby that RRU can be handled and itself
Baseband signal corresponding to the BBU of the multiple types of connection, and then multiple types BBU and a RRU networking can be used, reduce
The network of establishment is managed concentratedly and the difficulty of unified planning.
Brief description of the drawings
Fig. 1 is the networking schematic diagram of single mode computer room and single mode RRU in background technology；
Fig. 2 is the networking schematic diagram of multimode computer room and single mode RRU in background technology；
Fig. 3 is the method flow schematic diagram that RRU of the embodiment of the present invention is handled downstream signal；
Fig. 4 is multi-standard of embodiment of the present invention BBU and RRU networking mode schematic diagrames；
Fig. 5 is RRU theory structure schematic diagrams of the embodiment of the present invention；
Fig. 6 is the method flow schematic diagram that RRU of the embodiment of the present invention is handled upward signal；
Fig. 7 is RRU of embodiment of the present invention structural representation；
Fig. 8 is RRU of embodiment of the present invention structural representation.
Embodiment
The embodiment of the present invention, with the RRU that the BBU of multiple types is connected adopting the baseband signal from BBU received
Sample rate value is converted into the sampling rate value of setting；RRU determines radiofrequency signal according to the baseband signal after conversion, and by least
One antenna launches radiofrequency signal；And the radio frequency remote unit RRU being connected with each baseband processing unit BBU of multiple types will
The radiofrequency signal received is converted into baseband signal of the sampling rate value for the sampling rate value of setting；For what is be connected with RRU
The sampling rate value of baseband signal after conversion is transformed to baseband signal corresponding to the BBU by the BBU of each standard, RRU
Sampling rate value, and the baseband signal after conversion is sent to the BBU, due to adopting for baseband signal corresponding to different systems BBU
Sample rate value is different, and for descending process, the sampling rate value of the baseband signal from BBU received is converted into setting by RRU
Fixed sampling rate value, it is determined that conversion after baseband signal corresponding to radiofrequency signal, launched by least one antenna, pin
To up process, radiofrequency signal that RRU will receive from antenna, base of the sampling rate value for the sampling rate value of setting is converted into
Band signal, for the BBU for each standard being connected with RRU, the sampling rate value of the baseband signal after conversion is transformed to this
The sampling rate value of baseband signal corresponding to BBU, and the BBU is sent to, it is achieved thereby that RRU can handle what is be connected with itself
Baseband signal corresponding to the BBU of multiple types, and then multiple types BBU and a RRU networking can be used, reduce to setting up
Network carry out centralized management and unified planning difficulty.
The embodiment of the present invention is described in further detail with reference to Figure of description.
As shown in figure 3, the method that RRU of the embodiment of the present invention is handled downstream signal comprises the following steps：
Step 301, with the RRU that each BBU of multiple types is connected by the sampling of the baseband signal from BBU received speed
Rate value is converted into the sampling rate value of setting；
Step 302, RRU determine radiofrequency signal according to the baseband signal after conversion, and are penetrated by least one antenna
Frequency signal.
It is preferred that in step 301, RRU receives the baseband signal from BBU, including：
The baseband signal from the BBU is received by optical port corresponding to the BBU for a BBU, RRU；
A kind of corresponding optical port of one of BBU standard, and the corresponding BBU of an optical port.
In implementation, BBU can be the BBU of the single system or BBU of multi-standard, will be introduced respectively below.
Situation one, BBU are the BBU of single system.
For the BBU of a single system, a cpri of the BBU is connected by an optical fiber（Common public radio interface）
With a RRU optical port, realize that now, the optical port of optical fiber connection is should by the base band signal transmission that the BBU is exported to the RRU
Optical port corresponding to BBU；
Wherein, the corresponding optical port of a BBU, and the corresponding BBU of an optical port.
When RRU passes through N（N is positive integer）When bar optical fiber is connected with the BBU of N number of single system, RRU passes through N number of list
Optical port corresponding to the BBU of standard receives baseband signal corresponding to the BBU of N number of single system.
Situation two, BBU are the BBU of multi-standard.
For the BBU of a multi-standard, if the BBU has M kind standards, for a kind of standard of the BBU, pass through a light
A cpri corresponding to fibre this kind of standard of connection（Common public radio interface）With a RRU optical port, realize and export the BBU
This kind of standard corresponding to base band signal transmission to the RRU, now, this kind of standard that the optical port of optical fiber connection is the BBU is corresponding
Optical port；That is, the BBU of one M kind standard transmits baseband signal corresponding to the BBU M kind standards by M bar optical fiber, and RRU passes through M
M optical port receives the baseband signal from the BBU corresponding to kind standard.
As shown in figure 4, BBU is the BBU of double-standard, GSM is supported（Global system for mobile communications）Standard and WCDMA (widebands
Code division multiple access) standard, base band signal transmission corresponding to the GSM standards that optical fiber 1 exports cpri0 passes through light to RRU, RRU
Mouth 1 receives baseband signal corresponding to GSM standards；Base band signal transmission corresponding to the WCDMA standards that optical fiber 2 exports cpri1 to
RRU, RRU receive baseband signal corresponding to WCDMA standards by optical port 2.
It is preferred that for the BBU of a multi-standard, a kind of corresponding optical port of standard of the BBU then can be from a light
Baseband signal corresponding to a kind of mouth reception BBU standard, can also receive the BBU's from an optical port in different time sections
Baseband signal corresponding to multiple types.
, can be in first time period, by base band corresponding to GSM standards for example similarly, BBU is the BBU of double-standard
Signal is transmitted by optical fiber 1, and RRU receives baseband signal corresponding to the GSM standards by optical port 1；, will in second time period
Baseband signal is transmitted by optical fiber 1 corresponding to WCDMA standards, and RRU receives base band corresponding to the WCDMA standards by optical port 1 to be believed
Number；Realize and received from optical port 1 in different time sections corresponding to baseband signal corresponding to BBU GSM standards and WCDMA standards
Baseband signal.
A kind of corresponding optical port of one of BBU standard, and the corresponding BBU of an optical port.
It should be noted that above-mentioned is only to be directed to a BBU, the performance that RRU receives the baseband signal from BBU is entered
Capable introduction, for multiple BBU be present, the performance of each BBU in multiple BBU is directed to a BBU with above-mentioned,
The performance that RRU receives the baseband signal from BBU is similar, will not be repeated here.
In implementation, the sampling rate value of the baseband signal of the BBU transmission of different systems is different.
In implementation, in step 301, RRU may receive a baseband signal or multiple baseband signals.
Wherein, single system computer room and multi-standard computer room（Computer room supports multiple types）Embodiment and single, multi-standard BBU
Embodiment it is similar, will not be repeated here.
It is preferred that the sampling rate value of the baseband signal from BBU received is converted into setting by step 301, RRU
Before sampling rate value, in addition to：
The clock frequency value that RRU determines according to clock distributor, it is determined that the sampling rate value of setting.
Wherein, the numerical values recited for the clock frequency value that the numerical values recited of the sampling rate value of setting determines with clock distributor
It is equal.
It is preferred that in step 301, RRU is by way of interpolation by the sampling speed of the baseband signal from BBU received
Rate value is converted into the sampling rate value of setting.In signal downlink, RRU increases the sampling speed of baseband signal by way of interpolation
Rate so that the sampling rate value of the baseband signal from BBU received increases to the sampling rate value of setting.
In implementation, the sampling rate value of baseband signal corresponding to different systems BBU can be converted into adopting for setting by other
The mode of sample rate value is equally applicable to the present invention.
It is preferred that in step 301, RRU receives the different baseband signal of multiple sampling rate values within the same period
When, can by the different baseband signal of each sampling rate value successively be converted into setting sampling rate value, can also simultaneously by
The sampling rate value of at least two baseband signals is converted into the sampling rate value of setting.
The first base band corresponding with the first standard BBU of itself connection will be received within the same period with RRU below
It is introduced exemplified by second baseband signal corresponding to signal and the second standard BBU, the embodiment and the present invention of other situations are real
It is similar to apply the embodiment of example, will not be repeated here.
As shown in figure 5, first processing units include data intermediate frequency module, frequency-variable module, power amplifier module and filtration module,
FPGA（Field programmable gate array）1 and DAC（Digital analog converter）The branch road of 1 grade concatenation forms first via first processing units,
The branch road of the concatenations such as FPGA2 and DAC2 forms the second tunnel first processing units, wherein, first via first processing units and the second tunnel
The structure of first processing units is identical.
RRU receives the first baseband signal by optical port 1, and the second baseband signal is received by optical port 2；RRU can be used
The sampling rate value of first baseband signal is converted into the sampling rate value of setting by up-conversion DUC corresponding to FPGA1, uses
The sampling rate value of second baseband signal is converted into the sampling rate value of setting by DUC corresponding to FPGA2, realizes two simultaneously
The sampling rate value of baseband signal is converted into the sampling rate value of setting；Can also be by DUC corresponding to FPGA1 successively by first
The sampling rate value of baseband signal and the second baseband signal is converted into the sampling rate value of setting.
In implementation, the sampling rate value for each sampling rate value different baseband signal to be converted into setting successively
Situation, for baseband signal of the multi-channel sampling rate value for the sampling rate value of setting be present, specifically whether synthesize this
Multichannel baseband signal can be set as needed, such as, RRU can determine to penetrate corresponding to each roadbed band signal after conversion respectively
Frequency signal；After at least two-way baseband signal in all baseband signals after conversion being synthesized into baseband signal all the way, it is determined that
The radiofrequency signal corresponding to baseband signal all the way, and radio frequency corresponding to each roadbed band signal in addition to this all the way baseband signal
Signal；All baseband signals after conversion can also be synthesized baseband signal all the way two-by-two, determine the baseband signal after each synthesis
Corresponding radiofrequency signal etc..
Wherein, if at least two-way baseband signal synthesis baseband signal all the way in multichannel baseband signal, at least two-way
Baseband signal takes certain first processing units all the way simultaneously within the same period（In Fig. 5, at least two-way baseband signal is same
First via first processing units or the second tunnel first processing units are taken in one period simultaneously）；If multichannel baseband signal is not entered
Row synthesis is handled, then each roadbed band signal in the multichannel baseband signal takes certain first processing list all the way in different time sections
Member.
It is preferred that all baseband signals after conversion are synthesized baseband signal all the way by RRU；Then step 302, RRU according to turn
Baseband signal after changing determines radiofrequency signal, including：
According to the baseband signal after synthesis, it is determined that radiofrequency signal corresponding to baseband signal after synthesis.
It is preferred that at least two-way baseband signal in all baseband signals after conversion is synthesized baseband signal all the way by RRU,
Then step 302, RRU determine radiofrequency signal according to the baseband signal after conversion, including：
According to the baseband signal after synthesis, it is determined that radiofrequency signal corresponding to baseband signal after synthesis；And according to not closing
Into baseband signal, it is determined that radiofrequency signal corresponding to baseband signal after not synthesizing.
In implementation, the implementation feelings of other kind of mode of synthesis and/or the multichannel baseband signal not synthesized are determined for RRU
Condition is similar with the performance of the embodiment of the present invention, will not be repeated here.
The first base band corresponding with the first standard BBU of itself connection will be received within the same period with RRU below
Second baseband signal corresponding to signal and the second standard BBU, the first base band letter after being changed using DUC corresponding to FPGA1
Number and the second baseband signal, and enter exemplified by the first baseband signal after conversion and the second baseband signal are not synthesized into signal all the way
Row is introduced, and the embodiment of other situations is similar with the embodiment of the embodiment of the present invention, will not be repeated here.
As shown in figure 5, RRU receives the first baseband signal by optical port 1, the second baseband signal is received by optical port 2；Using
The sampling rate value of first and second baseband signal is converted into the sampling rate value of setting by DUC corresponding to FPGA1 successively.
It is preferred that first baseband signal can be received by optical port 1 by FPGA1 system module, the is received by optical port 2
Two baseband signals.
It is preferred that the clock frequency value that FPGA1 system module can determine according to clock distributor, it is determined that setting is adopted
Sample rate value.
FPGA1 DUC realizes the first baseband signal after conversion from " multiple " baseband signal to the conversion of " reality " bandpass signal,
By the first baseband signal after filtering, a higher sample rate is converted into, so as to be modulated to NCO（Digital controlled oscillator）Intermediate frequency
Carrier frequency（The sampling rate value of the first baseband signal is converted into the first sampling rate value）；FPGA1 CFR（Crest because
Son decay）Realize in PA（Power amplification）Reduce intermediate-freuqncy signal before（It is modulated to the first baseband signal of IF carrier frequency）
PAR（Peak-to-average force ratio）, ensure the linearity of PA outputs, reduce out-of-band radiation, improve PA efficiency；FPGA1 digital pre-distortion DPD
Realize and pre-distortion is carried out to intermediate-freuqncy signal, correct PA nonlinear characteristic, lift PA delivery efficiency；Predistortion will be passed through
The intermediate-freuqncy signal of processing is input to DAC1；
Wherein, data intermediate frequency module includes FPGA1 and DAC1；
Frequency-variable module, the intermediate-freuqncy signal for DAC1 to be exported are changed into radiofrequency signal by mixing；
It is preferred that as shown in figure 5, frequency-variable module can include IQ Modulator（IQ modulators, intelligent regulator）, use
In the intermediate-freuqncy signal intermediate frequency filtering for exporting DAC1（That is the intermediate-freuqncy signal that intermediate-frequency filter IF Filter1 export to DAC1 is carried out
Intermediate frequency filtering）Afterwards, the signal with the output of the first radio frequency phase locked source is mixed；ATT（Attenuator, attenuator）, for controlling
The gain of the signal of system mixing output.
Power amplifier module, for being amplified to radiofrequency signal；
Filtration module, the radiofrequency signal after amplification is filtered processing；
The radiofrequency signal after this is handled after filtering is exported from antenna.
Wherein, the processing procedure of the first baseband signal after the processing procedure of the second baseband signal after conversion and conversion
Embodiment is similar, only, the first baseband signal after different time sections processing conversion and the second base band letter after conversion
Number.
It is preferred that can by radiofrequency signal corresponding to radiofrequency signal corresponding to the first baseband signal and the second baseband signal from
Same antenna is launched, and can also launch from different antennas.
It is preferred that the situation for the first baseband signal after conversion and the second baseband signal to be synthesized to signal all the way, is needed
The sampling rate value of the first baseband signal and the second baseband signal is converted into the first sampling rate respectively in FPGA1 DUC
After value, by the first baseband signal after conversion and the second baseband signal synthesis signal, and the signal after merging is inputted all the way
To FPGA1 CFR.
It is preferred that as shown in fig. 6, a kind of method handled upward signal of the embodiment of the present invention, including：
Step 601, with each BBU of multiple types RRU being connected the radiofrequency signal received is converted into sampling rate value
For the baseband signal of the sampling rate value of setting；
Step 602, for the BBU for each standard being connected with RRU, RRU is by the sampling speed of the baseband signal after conversion
Rate value is transformed to the sampling rate value of baseband signal corresponding to the BBU, and the baseband signal after conversion is sent into the BBU.
In implementation, the method for Fig. 6 signal transacting is the processing method of upward signal, the method with Fig. 6 signal transacting
（The processing method of downstream signal）It is corresponding.
It is preferred that the sampling rate value of the setting in step 301 is identical with the sampling rate value of the setting in step 601.
It is preferred that the radiofrequency signal received is converted into sampling rate of the sampling rate value for setting by step 601, RRU
Before the baseband signal of value, in addition to：
The clock frequency value that RRU determines according to clock distributor, it is determined that the sampling rate value of setting.
Wherein, the clock frequency value that RRU determines according to clock distributor, it is determined that the performance of the sampling rate value of setting
The performance of sampling rate value with determining setting in Fig. 3 is similar, will not be repeated here.
Wherein, RRU receives radiofrequency signal from least one antenna.
It will be introduced below exemplified by receiving radiofrequency signal from an antenna, radiofrequency signal is received from multiple antennas
Embodiment it is similar with the embodiment of the embodiment of the present invention, only for receiving the feelings of radiofrequency signal from multiple antennas
Condition, at least second processing unit all the way can be used, when the way of second processing unit is identical with antenna number, every road second
Processing unit handle the road second processing unit respectively corresponding to the radiofrequency signal that receives of an antenna, wherein, per road second
The structure of processing unit is identical, including low noise amplification module, frequency-variable module and data intermediate frequency module.
As shown in figure 5, will be from antenna port（TX1/RX1）The radiofrequency signal received after filtering after, be input to low
Make an uproar amplification module, processing is amplified to filtered radiofrequency signal, the radiofrequency signal after amplification is input to frequency-variable module, realize
Radiofrequency signal after this is amplified is converted into intermediate-freuqncy signal, and intermediate-freuqncy signal is input to the ADC of data intermediate frequency module（Analog-to-digital conversion
Device）, the intermediate-freuqncy signal by ADC processing is moved by baseband signal by the FPGA3 of data intermediate frequency module down coversion DDC,
The sample rates values of signal are the sampling rate value of setting.
In implementation, the clock frequency determined by FPGA3 system module according to clock distributor can be set as needed
Value, it is determined that the sampling rate value of setting.
Wherein, low noise amplification module includes LNA, for filtered radiofrequency signal to be amplified, and controls up make an uproar
Sound）.
Wherein, frequency-variable module includes Mixer（Frequency mixer）And AMP（Amplifier, amplifier）, Mixer, for will be through
The signal that the filtered radiofrequency signals of wave filter Filter export with the second radio frequency phase locked source is mixed, and obtains radio frequency letter
Intermediate-freuqncy signal corresponding to number.
It is preferred that as shown in figure 5, RRU power module can use digiboard integrated technique, RRU monitoring module
Based on OMAP（Open Multimedia Application Platform, OMAP）.
In implementation, it can realize that the radiofrequency signal that will be received is converted into sampling rate value by way of extraction by DDC
For the baseband signal of the sampling rate value of setting, and the sampling rate value difference by the baseband signal of the sampling rate value of setting
It is converted into sampling rate value corresponding to the BBU of every kind of standard.
It is preferred that can the baseband signal as corresponding to FPGA3 by the BBU of the standard be sent to the BBU.
Wherein, baseband signal corresponding to the BBU of the standard is sent to the BBU by step 602, RRU, including：
RRU, by N bar optical fiber, the baseband signal of sampling rate value corresponding to the BBU of N number of standard is distinguished from N number of optical port
The BBU of standard corresponding to being transferred to.
Wherein, when using the radiofrequency signal that the multiple antennas of second processing cell processing receive all the way, in different time
Section handles the radiofrequency signal that each antenna receives.
Based on same inventive concept, a kind of RRU is additionally provided in the embodiment of the present invention, because the equipment solves the original of problem
Reason is similar to the method for the embodiment of the present invention, therefore the implementation of the equipment may refer to the implementation of method, and it is no longer superfluous to repeat part
State.
Fig. 7 is RRU structural representations of the embodiment of the present invention, as illustrated, RRU of the embodiment of the present invention includes：
First modular converter 701, for the sampling rate value of the baseband signal from each BBU received to be converted into setting
Fixed sampling rate value；
First processing module 702, for determining radiofrequency signal according to the baseband signal after conversion, and pass through at least one day
Line launches radiofrequency signal.
It is preferred that the first modular converter 701, is additionally operable to be directed to a BBU, is received and come from by optical port corresponding to the BBU
The baseband signal of the BBU；A kind of corresponding optical port of one of BBU standard, and the corresponding BBU of an optical port.
It is preferred that the first modular converter 701, is additionally operable to the clock frequency value determined according to clock distributor, it is determined that setting
Sampling rate value.
It is preferred that receiving baseband signal corresponding to multiple BBU；First modular converter 701, is additionally operable to after conversion
At least two-way baseband signal in all baseband signals synthesizes baseband signal all the way；
Accordingly, first processing module 702, specifically for according to the baseband signal after synthesis, it is determined that the base band after synthesis
Radiofrequency signal corresponding to signal.
In implementation, the first modular converter 701 and first processing module 702 are equivalent to first processing units.
Fig. 8 is RRU structural representations of the embodiment of the present invention, as illustrated, RRU of the embodiment of the present invention includes：
Second modular converter 801, for the radiofrequency signal received to be converted into sampling speed of the sampling rate value for setting
The baseband signal of rate value；
Second processing module 802, for the BBU of each standard for being connected with RRU, by the baseband signal after conversion
Sampling rate value be transformed to the sampling rate value of baseband signal corresponding to the BBU, and the baseband signal after conversion is sent to
The BBU.
It is preferred that the second modular converter 801, is additionally operable to the clock frequency value determined according to clock distributor, it is determined that setting
Sampling rate value.
In implementation, the second modular converter 801 and Second processing module 802 are equivalent to second processing unit.
In implementation, module corresponding to module and Fig. 8 RRU corresponding to Fig. 7 of embodiment of the present invention RRU can be integrated into
In same RRU.
It should be understood by those skilled in the art that, embodiments of the invention can be provided as method, system or computer program
Product.Therefore, the present invention can use the reality in terms of complete hardware embodiment, complete software embodiment or combination software and hardware
Apply the form of example.Moreover, the present invention can use the computer for wherein including computer usable program code in one or more
Usable storage medium（Including but not limited to magnetic disk storage, CD-ROM, optical memory etc.）The computer program production of upper implementation
The form of product.
The present invention is with reference to method according to embodiments of the present invention, equipment（System）And the flow of computer program product
Figure and/or block diagram describe.It should be understood that can be by every first-class in computer program instructions implementation process figure and/or block diagram
Journey and/or the flow in square frame and flow chart and/or block diagram and/or the combination of square frame.These computer programs can be provided
The processors of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing devices is instructed to produce
A raw machine so that produced by the instruction of computer or the computing device of other programmable data processing devices for real
The device for the function of being specified in present one flow of flow chart or one square frame of multiple flows and/or block diagram or multiple square frames.
These computer program instructions, which may be alternatively stored in, can guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works so that the instruction being stored in the computer-readable memory, which produces, to be included referring to
Make the manufacture of device, the command device realize in one flow of flow chart or multiple flows and/or one square frame of block diagram or
The function of being specified in multiple square frames.
These computer program instructions can be also loaded into computer or other programmable data processing devices so that counted
Series of operation steps is performed on calculation machine or other programmable devices to produce computer implemented processing, so as in computer or
The instruction performed on other programmable devices is provided for realizing in one flow of flow chart or multiple flows and/or block diagram one
The step of function of being specified in individual square frame or multiple square frames.
Although preferred embodiments of the present invention have been described, but those skilled in the art once know basic creation
Property concept, then can make other change and modification to these embodiments.So appended claims be intended to be construed to include it is excellent
Select embodiment and fall into having altered and changing for the scope of the invention.
Obviously, those skilled in the art can carry out the essence of various changes and modification without departing from the present invention to the present invention
God and scope.So, if these modifications and variations of the present invention belong to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprising including these changes and modification.
Claims (10)
- A kind of 1. method of signal transacting, it is characterised in that this method includes：The base band from BBU that will be received with each baseband processing unit BBU of multiple types radio frequency remote unit RRUs being connected The sampling rate value of signal is converted into the sampling rate value of setting；At least two-way baseband signal in all baseband signals after conversion is synthesized baseband signal all the way by the RRU；The RRU is according to the baseband signal after synthesis, it is determined that radiofrequency signal corresponding to baseband signal after synthesis, and by least One antenna launches the radiofrequency signal.
- 2. the method as described in claim 1, it is characterised in that the RRU adopts the baseband signal from BBU received Sample rate value is converted into before the sampling rate value of setting, in addition to：The clock frequency value that the RRU determines according to clock distributor, determine the sampling rate value of the setting.
- 3. the method as described in claim 1, it is characterised in that RRU receives the baseband signal from BBU, including：The baseband signal from the BBU is received by optical port corresponding to the BBU for a BBU, the RRU；A kind of corresponding optical port of one of BBU standard, and the corresponding BBU of an optical port.
- A kind of 4. method of signal transacting, it is characterised in that this method includes：The radiofrequency signal received is changed with the radio frequency remote unit RRU that each baseband processing unit BBU of multiple types is connected Baseband signal into sampling rate value for the sampling rate value of setting；For the BBU for each standard being connected with the RRU, the RRU is by the sampling rate value of the baseband signal after conversion The sampling rate value of baseband signal corresponding to the BBU is transformed to, and the baseband signal after conversion is sent to the BBU.
- 5. method as claimed in claim 4, it is characterised in that the radiofrequency signal received is converted into sampling speed by the RRU Before baseband signal of the rate value for the sampling rate value of setting, in addition to：The clock frequency value that the RRU determines according to clock distributor, determine the sampling rate value of the setting.
- 6. a kind of radio frequency remote unit RRU, it is characterised in that the RRU includes：First modular converter, for the sampling rate value of the baseband signal from each baseband processing unit BBU received to be turned Change the sampling rate value of setting into；First modular converter, it is additionally operable at least two-way baseband signal synthesis in all baseband signals after conversion all the way Baseband signal；First processing module, for according to the baseband signal after synthesis, it is determined that radiofrequency signal corresponding to baseband signal after synthesis, And the radiofrequency signal is launched by least one antenna.
- 7. RRU as claimed in claim 6, it is characterised in that first modular converter, be additionally operable to true according to clock distributor Fixed clock frequency value, determine the sampling rate value of the setting.
- 8. RRU as claimed in claim 6, it is characterised in that first modular converter, be additionally operable to be directed to a BBU, pass through Optical port corresponding to the BBU receives the baseband signal from the BBU；A kind of corresponding optical port of one of BBU standard, and one The corresponding BBU of individual optical port.
- 9. a kind of radio frequency remote unit RRU, it is characterised in that the RRU includes：Second modular converter, for the radiofrequency signal received to be converted into base of the sampling rate value for the sampling rate value of setting Band signal；Second processing module, for the BBU of each standard for being connected with the RRU, by the baseband signal after conversion Sampling rate value is transformed to the sampling rate value of baseband signal corresponding to the BBU, and the baseband signal after conversion is sent into this BBU。
- 10. RRU as claimed in claim 9, it is characterised in that second modular converter, be additionally operable to according to clock distributor The clock frequency value of determination, determine the sampling rate value of the setting.
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| CN201310004469.8A CN103916877B (en) | 2013-01-07 | 2013-01-07 | The method and Remote Radio Unit of a kind of signal transacting |
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| CN201310004469.8A CN103916877B (en) | 2013-01-07 | 2013-01-07 | The method and Remote Radio Unit of a kind of signal transacting |
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| AU2019216880B2 (en) * | 2018-02-08 | 2023-12-14 | Bae Systems Australia Limited | Multichannel software defined radio receiver with optically isolated ADC |
| CN112702745A (en) * | 2019-10-22 | 2021-04-23 | 中兴通讯股份有限公司 | Method and device for generating shared carrier wave and method and device for processing shared carrier wave |
| CN112702135B (en) * | 2020-12-24 | 2023-09-29 | 京信网络系统股份有限公司 | Signal processing method, device, system, medium and electronic equipment |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1755230A2 (en) * | 2005-08-17 | 2007-02-21 | Samsung Electronics Co., Ltd. | Multi-mode/multi-band wireless transceiver |
| CN101790256A (en) * | 2009-01-22 | 2010-07-28 | 中兴通讯股份有限公司 | Signal receiving machine, signal sending machine and signal processing method |
| CN101965070A (en) * | 2009-07-23 | 2011-02-02 | 中兴通讯股份有限公司 | Multimode base station, radio frequency unit and realizing method thereof |
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2013
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1755230A2 (en) * | 2005-08-17 | 2007-02-21 | Samsung Electronics Co., Ltd. | Multi-mode/multi-band wireless transceiver |
| CN101790256A (en) * | 2009-01-22 | 2010-07-28 | 中兴通讯股份有限公司 | Signal receiving machine, signal sending machine and signal processing method |
| CN101965070A (en) * | 2009-07-23 | 2011-02-02 | 中兴通讯股份有限公司 | Multimode base station, radio frequency unit and realizing method thereof |
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