CN105101482B - A kind of base station system and its signal processing method - Google Patents
A kind of base station system and its signal processing method Download PDFInfo
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- CN105101482B CN105101482B CN201410203155.5A CN201410203155A CN105101482B CN 105101482 B CN105101482 B CN 105101482B CN 201410203155 A CN201410203155 A CN 201410203155A CN 105101482 B CN105101482 B CN 105101482B
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Abstract
The invention discloses a kind of base station system and its signal processing methods, to reduce base station construction cost under the premise of not influencing mobile communication network performance.The base station system, the baseband processing unit BBU that the 2nd RRU and the second antenna antenna-feeder system and first movement communication system of the first radio frequency remote unit RRU and first antenna antenna-feeder system, the second mobile communication system including first movement communication system and the second mobile communication system are shared, wherein: the BBU includes the first baseband board of first movement communication system and the second baseband board of the second mobile communication system, and first baseband board is connected by backboard with second baseband board and interacts I/Q data；First baseband board is connect by the first RRU with the first antenna antenna-feeder system；Second baseband board is connect by the 2nd RRU with the second antenna antenna-feeder system.
Description
Technical field
The present invention relates to wireless communication technology field more particularly to a kind of base station system and its signal processing methods.
Background technique
LTE (Long Time Evolution, long term evolution) is all new generation after 3G (Third Generation) Moblie (3G)
Wide-band mobile communication technology, including TD-LTE (Time Division Long Term Evolution, timesharing long term evolution) and
Two kinds of LTE FDD (Frequency Division Duplexing Long TermEvolution, frequency division duplex long term evolution)
Mode.Wherein, TD-LTE is TD-SCDMA (Time Division-Synchronous Code Division Multiple
Access, TD SDMA) subsequent evolution technology, also have become generally acknowledged one of mobile communication 4G international standard.
To the region for TD-SCDMA system not being used to be covered, when being covered using TD-LTE system, can be used new
The scheme of TD-LTE system website (hereinafter referred to as LTE base station) is built, the program includes TD-LTE system bus station position and BBU
(Building Base Band Unit, baseband processing unit), RRU (Radio Remote Unit, Remote Radio Unit) with
And antenna-feeder system is newly-built.
In existing newly-built LTE base station scheme, it is assumed that N number of LTE base station need to be created altogether, Installed capital cost includes site
The cost of cost and newly-increased carrier frequency (BBU, RRU and antenna-feeder system including each carrier frequency), about are as follows: N* (300,000/website+4.2
Ten thousand/carrier frequency *, 3 carrier frequency/website)=42.6*N ten thousand.
It can be seen that a newly-built LTE base station is with high costs, but if base is reduced using LTE base station quantity is reduced
If construction cost of standing, TD-LTE network performance will be reduced so that TD-LTE network coverage is affected.Therefore, how
Base station construction cost is reduced under the premise of not influencing mobile communication network performance as technology urgently to be resolved in the prior art
One of problem.
Summary of the invention
The embodiment of the present invention provides a kind of base station system and its signal processing method, not influence mobile communications network
Base station construction cost is reduced under the premise of performance.
The embodiment of the present invention provides a kind of base station system, the first Remote Radio Unit including first movement communication system
RRU and first antenna antenna-feeder system, the 2nd RRU of the second mobile communication system and the second antenna antenna-feeder system and first movement
The baseband processing unit BBU that communication system and the second mobile communication system are shared, in which:
The BBU includes the first baseband board of first movement communication system and the second base band of the second mobile communication system
Plate, first baseband board are connected by backboard with second baseband board and interact I/Q data；
First baseband board is connect by the first RRU with the first antenna antenna-feeder system；
Second baseband board is connect by the 2nd RRU with the second antenna antenna-feeder system.
First RRU configures the first optical port of the first pre-set bandwidths, and the 2nd RRU configures the of the second pre-set bandwidths
Two optical ports.
The first antenna antenna-feeder system is N antenna antenna-feeder system, and the second antenna antenna-feeder system is M antenna antenna-feeder system,
Wherein N and M is preset value.
The first movement communication system and second mobile communication system include the mobile communication system based on the time-division
Or the mobile communication system based on frequency division.
The first movement communication system includes timesharing long term evolution TD-LTE system, the second mobile communication system packet
Include TD SDMA TD-SCDMA system.
First pre-set bandwidths are not more than 9.8G, and second pre-set bandwidths are not more than 6G.
The embodiment of the present invention provides a kind of signal processing method based on above-mentioned base station system, comprising:
The first antenna antenna-feeder system and the second antenna antenna-feeder system receive the of user equipment (UE) transmission respectively
The one the first uplink signals of one mobile communication system；
The first antenna antenna-feeder system and the second antenna antenna-feeder system send first uplink signal respectively
It is sampled to obtain the first I/Q data to the first RRU and the 2nd RRU；
The first I/Q data-signal that sampling obtains is sent respectively to described first by the first RRU and the 2nd RRU
Baseband board and second baseband board；
Second baseband board is sent to first base band by the first I/Q data-signal that the backboard receives
Plate；
First baseband board merges the first I/Q data-signal point sent to the first RRU and two baseband board
The Soft Inform ation obtained after not demodulated.
First baseband board is merged using maximum-ratio combing mode to the first RRU and second baseband board transmission
The first I/Q data-signal demodulated respectively after obtained Soft Inform ation.
The method, further includes:
The second antenna antenna-feeder system receives the second uplink signal of second mobile communication system simultaneously；And
Second uplink signal is sent to the 2nd RRU to be sampled to obtain the 2nd I/Q data-signal；
2nd RRU by the 2nd I/Q data-signal be sent to second baseband board demodulated to obtain it is described
The Soft Inform ation of 2nd I/Q data-signal.
First baseband board is using maximum-ratio combing mode or equal gain combining mode or selection combination mode
The first I/Q data-signal that merging sends the first RRU and second baseband board obtains soft after demodulating respectively
Information.
If the first I/Q data signal bandwidth and/or the 2nd I/Q data signal bandwidth that the 2nd RRU is sampled are big
When the optical port bandwidth of the 2nd RRU configuration, send the first I/Q data-signal and/or the 2nd I/Q data-signal it
Before, further includes:
CPRI compression is carried out to the first I/Q data-signal and/or the 2nd I/Q data-signal；
Second baseband board receive compressed first I/Q data-signal and/or the 2nd I/Q data-signal it
Afterwards, further includes:
The first I/Q data-signal and/or the 2nd I/Q data-signal are unziped it.
Base station system provided in an embodiment of the present invention and its signal processing method are independently arranged in the base station system
The RRU and antenna antenna-feeder system of first movement communication system and the second mobile communication system, and first movement communication system and
Two mobile communication system share BBU, include respective baseband board in shared BBU, are connected between two baseband boards by backboard
I/Q data-signal is connect and interacts, in this way, for the uplink signal of each mobile communication system, in addition to itself can be passed through
Antenna antenna-feeder system receive uplink signal outside, can also pass through the antenna antenna-feeder system of another mobile communication system receive uplink
Signal, the uplink signal sample to be transferred to another movement after obtaining I/Q data-signal by the RRU of another mobile communication system
The baseband board of communication system, and it is transferred to by backboard the baseband board of the mobile communication system itself, by the mobile communication system
The I/Q data-signal and another shifting that the baseband board of itself obtains the received uplink signal of itself antenna-feeder system after RRU is sampled
After the I/Q data-signal that the baseband board of dynamic communication system transmits is demodulated, to the soft letter of the uplink signal received
Breath merges, so that the reception diversity gain of uplink signal is obtained, due to sending signal using two shiftings to identical uplink
The antenna feeder of dynamic communication system carries out joint reception, so as to expand single base station coverage area, thus covers identical covering
The base station number that range needs will be reduced, so that realize reduces base station under the premise of not influencing mobile communication network performance
Construction cost.
Other features and advantages of the present invention will be illustrated in the following description, also, partly becomes from specification
It obtains it is clear that understand through the implementation of the invention.The objectives and other advantages of the invention can be by written explanation
Specifically noted structure is achieved and obtained in book, claims and attached drawing.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present invention, constitutes a part of the invention, this hair
Bright illustrative embodiments and their description are used to explain the present invention, and are not constituted improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the structural schematic diagram of base station system in the embodiment of the present invention；
Fig. 2 is the signal processing flow schematic diagram of base station system in the embodiment of the present invention；
Fig. 3 is base station system internal signal processing schematic in the embodiment of the present invention.
Specific embodiment
In order to reduce the cost of traditional base station hypothesis, the embodiment of the invention provides a kind of two sets of mobile communication system are shared
One RRU simultaneously carries out the received base station system of uplink joint.
It should be noted that the embodiment of the present invention is suitable for the mobile communication system of different network formats, preferably, two sets
Mobile communication system can be all the mobile communication system based on the time-division, such as TD-SCDMA, TD-LTE and its evolution system；?
It can be all the mobile communication system based on frequency division, such as WCDMA, CDMA2000, FDD LTE and its evolution system, Huo Zheyi
Set is the mobile communication system based on the time-division, and another set of is the mobile communication system based on frequency division.The heterogeneous networks system of should be appreciated that
The optical port configuration of the RRU of the mobile communication system of formula is different according to the sampling rate of different mobile communication system.
Below in conjunction with Figure of description, preferred embodiment of the present invention will be described, it should be understood that described herein
Preferred embodiment only for the purpose of illustrating and explaining the present invention and is not intended to limit the present invention, and in the absence of conflict, this hair
The feature in embodiment and embodiment in bright can be combined with each other.
As shown in Figure 1, being the structural schematic diagram of base station system provided in an embodiment of the present invention, including first movement communication system
The first RRU111 and first antenna antenna-feeder system 112 of system, the 2nd RRU121 and the second antenna day of the second mobile communication system
The shared BBU13 of feedback system 122 and first movement communication system and the second mobile communication system, in which: BBU13 includes the
First baseband board 131 of one mobile communication system and the second baseband board 132 of the second mobile communication system, the first baseband board 131
It is connected with the second baseband board 132 by backboard and interacts I/Q data-signal；First baseband board 131 passes through the first RRU111 and the
The connection of one antenna antenna-feeder system 112；Second baseband board 132 is connect by the 2nd RRU121 with the second antenna antenna-feeder system 122.
Preferably, the first RRU111 configures the first optical port 1110 of the first pre-set bandwidths, the 2nd RRU121 configuration second is pre-
If the second optical port 1210 of bandwidth.It is respectively TD-LTE and TD- with first movement communication system and the second mobile communication system
For SCDMA, the RRU of TD-LTE system can be configured no more than 9.8Gbps optical port, and the RRU of TD-SCDMA can be configured less
In 6Gbps optical port.
Preferably, when it is implemented, first antenna antenna-feeder system 112 can be N antenna antenna-feeder system, the second antenna antenna feeder
System 122 can be M antenna antenna-feeder system, wherein N and M can be preset value, for example, first antenna antenna-feeder system 112 and the
Two antenna antenna-feeder systems 122 all can be 8 antenna antenna-feeder systems.
For ease of description, in the embodiment of the present invention with first movement communication system be TD-LTE and the second mobile communication system
System be TD-SCDMA, and TD-LTE system using F-band transmit data, TD-SCDMA using F/A band transmissions data instance into
Row explanation.
When it is implemented, TD-LTE system and TD-SCDMA system share BBU device, TD-LTE system configures F-band RRU
And 8 antenna antenna-feeder system of F-band, TD-SCDMA system configure F/A frequency range RRU and 8 antenna antenna-feeder system of F/A frequency range.Shared
TD-LTE system baseband board and TD-SCDMA system baseband board, TD-LTE system baseband board and TD- are respectively configured in BBU device
SCDMA systems baseband plate is connected by backboard, and passes through backboard interaction I/Q data-signal.Based on TD-LTE system and TD-
SCDMA systems baseband I/Q data bandwidth requirement, TD-LTE system RRU need to configure the light of 9.8Gbps (20MHz cell) bandwidth
Mouthful, TD-SCDMA system RRU needs to configure the optical port of 6Gbps bandwidth.
TD-SCDMA system uplink and downlink signal are received and sent out using F/A antenna antenna-feeder system based on this
It send；To TD-LTE system downlink signal, sent using F-band antenna antenna-feeder system；Since TD-LTE system uplink signal is limited
(especially edge customer uplink transmission power is limited), thus to TD-LTE system uplink signal, TD-SCDMA and TD- can be used
The secondary 8 antenna antenna-feeder systems of LTE system two are received and are merged respectively, since TD-LTE system uplink receiving signal is from 8 antennas
Reception becomes the reception of 16 antennas, can get the reception diversity of 3dB after merging the signal received using maximum-ratio combing mode
Every sector radial direction uplink covering radius 20% can be improved from link budget analysis in gain, and cell uplink coverage area is promoted
44%.Due to combining reception with TD-SCDMA system uplink using TD-LTE, single base station uplink coverage area and TD-LTE are mono-
Mode single base station coverage area is promoted to need to build for the range of N number of base station covering in 44%, with background technique, the present invention
It is N/1.44 that the base station system that embodiment provides, which covers the base station number that identical range needs to build, and Installed capital cost includes
Site cost, newly-increased TD-LTE carrier frequency (BBU, RRU and antenna-feeder system including each carrier frequency are newly-built) cost and newly-increased TD-
SCDMA carrier frequency cost, are as follows: N/1.44* (300,000/9 carrier frequency of+1.1 ten thousand/carrier frequency * of 3 carrier frequency of+4.2 ten thousand/carrier frequency * of standing)=36.45*N
Ten thousand.It can be seen that base station system provided in an embodiment of the present invention can be realized under the premise of not influencing TD-LTE network performance,
Base station number needed for reducing, reduces base station construction cost.
Based on base station system shown in FIG. 1, the embodiment of the invention also provides a kind of signal processing methods, as shown in Fig. 2,
The following steps are included:
S21, first antenna antenna-feeder system and the second antenna antenna-feeder system receive UE (User Equipment, user respectively
Equipment) send first movement communication system the first uplink signal；
Still using first movement communication system as TD-LTE system, the second mobile communication system is that TD-SCDMA system is
Example, TD-LTE system antenna antenna-feeder system and TD-SCDMA system antenna antenna-feeder system receive F-band UE uplink transmitting letter
Number.
First uplink signal is sent respectively to by S22, first antenna antenna-feeder system and the second antenna antenna-feeder system
One RRU and the 2nd RRU are sampled to obtain the first I/Q data；
S23, the first RRU and the 2nd RRU will obtained the first I/Q data-signal of sampling be sent respectively to the first baseband board and
Second baseband board；
S24, the second baseband board are sent to the first baseband board by the first I/Q data-signal that backboard receives；
S25, the first baseband board merge the first I/Q data-signal sent to the first RRU and the second baseband board to carry out respectively
The Soft Inform ation obtained after demodulation.
When it is implemented, in step S25, the first baseband board can be, but not limited to merge using maximum-ratio combing mode to the
The Soft Inform ation that the first I/Q data-signal that one RRU and the second baseband board are sent obtains after being demodulated respectively, for example, the first base
Band plate can also be merged using equal gain combining mode or selection combination mode to the first RRU and the transmission of the second baseband board
The Soft Inform ation that first I/Q data-signal obtains after being demodulated respectively.For ease of description, with high specific in the embodiment of the present invention
Merging mode is illustrated for merging the signal received.
When it is implemented, the second antenna antenna-feeder system can also receive the of first movement communication system again in step S21
The second uplink signal of the second mobile communication system is received while one uplink signal；In this way, in step S23, the second antenna day
Feedback system, which also needs the second uplink signal being sent to the 2nd RRU, to be sampled to obtain the 2nd I/Q data-signal；Sampling is completed
Afterwards, the 2nd I/Q data-signal is sent to the second baseband board and is demodulated to obtain the soft letter of the 2nd I/Q data-signal by the 2nd RRU
Breath.It should be appreciated that when it is implemented, the second antenna antenna-feeder system can also only receive from the upper of the second mobile communication system
Row signal, subsequent processing mode with it is identical in the prior art, which is not described herein again.
Preferably, since the 2nd RRU is in addition to needing to sample to obtain to the second mobile communication system to the transmission of the second baseband board
The 2nd I/Q data-signal other than, it is also possible to need to transmit obtaining to first movement communications systems sample to the second baseband board
First I/Q data-signal, or the first I/Q number obtained to first movement communications systems sample is transmitted to the second baseband board simultaneously
It is believed that number and to the 2nd I/Q data-signal that the second mobile communication system samples, the optical port band that is configured according to the 2nd RRU
Width, if the first I/Q data signal bandwidth and/or the 2nd I/Q data signal bandwidth that the 2nd RRU is sampled are greater than the 2nd RRU
It can also include following before sending the first I/Q data-signal and/or the 2nd I/Q data-signal when the optical port bandwidth of configuration
Step: CPRI (Common Public Radio is carried out to the first I/Q data-signal and/or the 2nd I/Q data-signal
Interface, common public radio interface) compression.Correspondingly, the second baseband board is receiving compressed first I/Q data
It is further comprising the steps of after signal and/or the 2nd I/Q data-signal: to the first I/Q data-signal and/or the 2nd I/Q data
Signal unzips it.
Continuation of the previous cases, TD-LTE system RRU are sampled to signal is received, and 9.8Gbps bandwidth I/Q data are generated, through light
Fibre is transmitted to TD-LTE system baseband board and carries out balanced, demodulation, obtains demodulation Soft Inform ation.
TD-SCDMA system RRU samples antenna antenna-feeder system received signal.When it is implemented, due to TD-
The antenna antenna-feeder system of SCDMA system can simultaneously F-band and A frequency range uplink signal, if the uplink signal received is only
For A frequency range (TD-SCDMA uplink receiving signal), then the RRU sampling of TD-SCDMA generates 1.25Gbps (3 carrier waves/cell) I/Q
Data-signal；If the uplink signal received is only F-band (TD-LTE uplink receiving signal), the RRU of TD-SCDMA is adopted
Sample generates 9.8Gbps (20MHz cell) I/Q data-signal；If the uplink signal received has on F-band and A frequency range,
That is, receiving TD-SCDMA uplink signal and TD-LTE uplink signal simultaneously, then the RRU of TD-SCDMA is by TD-SCDMA uplink
Signal, TD-LTE uplink signal sample respectively obtains 1.25Gbps (3 carrier waves/cell) I/Q data-signal and 9.8Gbps (20MHz
Cell) I/Q data-signal, the total 11.05Gbps of I/Q data bandwidth.
Since the RRU optical port bandwidth of TD-SCDMA system configuration is 6Gbps, it is therefore desirable to be adopted to TD-SCDMA system RRU
The I/Q data-signal that sample obtains carries out CPRI compression, for example, can be compressed using the CPRI of 50% compression ratio, 6Gbps optical port can
Meet compressed I/Q data signal transmission bandwidth, I/Q data-signal is transmitted to TD-SCDMA system baseband board by optical fiber.
When it is implemented, I/Q data-signal unzips it after optical fiber is transmitted to TD-SCDMA baseband board, revert to
11.05Gbps (such as TD-SCDMA and TD-LTE system I/Q data-signal coexist) or 9.8Gbps are (as being only TD-LTE system I/Q
Data-signal) or 1.25Gbps (as being only TD-SCDMA system I/Q data-signal).Wherein, TD-SCDMA system I/Q data are believed
Number carrying out balanced, demodulation in TD-SCDMA baseband board obtains demodulation Soft Inform ation；TD-LTE system I/Q number in I/Q data-signal
It is believed that number carrying out balanced, demodulation by backboard interaction to TD-LTE system baseband board, demodulation Soft Inform ation is obtained.
The TD-LTE system I/Q data-signal of TD-LTE baseband board, TD- are transferred to for TD-SCDMA system baseband board
LTE baseband board acquired TD-LTE signal after the I/Q demodulated data signal that F-band samples by TD-SCDMA system RRU
Demodulate Soft Inform ation, TD-LTE uplink signal solution obtained after the I/Q demodulated data signal sampled with TD-LTE system RRU
Soft Inform ation is adjusted to merge.
When it is implemented, TD-LTE system baseband board can merge the TD-LTE uplink of acquisition using maximum-ratio combing mode
Signal demodulates Soft Inform ation.
To the maximum-ratio combing for carrying out Soft Inform ation after the demodulation of TD-LTE uplink receiving signal, it is equivalent to the TD-LTE of UE transmitting
System uplink signal, by two independent uplink transport channels, respectively by after two sets of independent 8 antenna array receivers of F-band,
It carries out independent demodulation and maximum-ratio combing is used to Soft Inform ation.Since equivalent received antenna amount becomes 16 antennas from 8 antennas, but
Every 8 antenna independently received, balanced and demodulation, thus the reception diversity gain of 3dB will be obtained after merging.
For the reception of TD-SCDMA uplink receiving signal, equilibrium and the no any influence of demodulation.TD- is had no effect on simultaneously
SCDMA and TD-LTE system respectively carry out the transmitting of 8 antenna of downlink.
As shown in figure 3, for the antenna antenna-feeder system of base station system, RRU and BBU internal signal processing schematic, still with
First movement communication system is TD-LTE and the second mobile communication system is TD-SCDMA, and TD-LTE system is passed using F-band
Transmission of data, TD-SCDMA are illustrated using F/A band transmissions data instance.
8 antenna antenna-feeder systems of TD-LTE system receive F-band TD-LTE uplink signal, 8 antennas of TD-SCDMA system
Antenna-feeder system receives F-band TD-LTE uplink signal and A frequency range TD-SCDMA uplink signal, and TD-LTE system F-band RRU is to day
The uplink signal that line antenna-feeder system receives is sampled to obtain the TD-LTE I/Q data signal transmission of 9.8Gbps to TD-LTE
Systems baseband plate, and the F/A frequency range RRU of TD-SCDMA system respectively to TD-LTE uplink signal and TD-SCDMA uplink signal into
Row sampling, obtains the TD-SCDMA I/Q data-signal of 1.25Gbps and the TD-LTE I/Q data-signal of 9.8Gbps, altogether
11.059.8Gbps I/Q data-signal, is transferred to TD-SCDMA system baseband board by optical fiber after 50%CPRI compresses,
TD-SCDMA system baseband board obtains the TD-SCDMA of 1.25Gbps after the I/Q data-signal received is carried out CPRI decompression
The TD-LTE I/Q data-signal of I/Q data-signal and 9.8Gbps, and the TD-LTE I/Q data-signal of 9.8Gbps is passed through
Backboard is transferred to TD-LTE system baseband board, due to TD-SCDMA system baseband board processing TD-SCDMAI/Q data-signal and now
There is technology identical, which is not described herein again.For TD-LTE system baseband board, by the TD-LTE of received two-way 9.8Gbps
I/Q data-signal, successively pass through following processing step: (Fast Fourier Transform, fast discrete Fourier become FFT
Change), channel estimation and detection, IDFT (Inverse Discrete Fourier Transform, inverse discrete Fourier transform),
Demodulation obtains the Soft Inform ation of TD-LTE uplink signal, and decodes after carrying out maximum-ratio combing to the Soft Inform ation of two paths of signals.
Base station system provided in an embodiment of the present invention carries out TD-SCDMA and two sets of TD-LTE using the program with single user
For 8 antenna systems carry out joint reception, the I/Q volume of transmitted data that need to interact are as follows: the demodulation Soft Inform ation band of interaction between baseband board
Wide W=TD-LTE single user uplink scheduling bandwidth B %*100PRB*12 subcarrier/PRB*12 symbol/ms* sampled point bit wide
32bit/ symbol * combine received cell number N=N*B*0.4608Gbps, and (wherein, B is joint reception bandwidth, and value is
[0,1]；N is to carry out combining received cell number in 3 cells in a base station site, and value is { 1,2,3 }) due to interacting strip
Width is larger, works as B=30%, when N=3, W=0.414Gbps.Since the I/Q data-signal interaction bandwidth across BBU is unable to reach this
Bandwidth demand, thus base station system provided in an embodiment of the present invention and its signal processing method can be in two sets of mobile communication system
The minizone of shared BBU uses.
For the edge customer having a common boundary in cell, because serving cell and adjacent cell can be used in such edge customer
8 antenna of TD-LTE system completes cooperative reception, but for the edge customer of cell radial direction, since it is to adjacent cell path loss
It is larger, thus the separate antenna progress 16 that two sets of mobile communication system provided in an embodiment of the present invention share BBU system can be used
The joint uplink receiving of antenna.Merged by the Soft Inform ation of combined received signal, cell radial edges user uplink receives signal
3dB can be improved in intensity, and radial edges covering radius promotes 20%, and website area coverage promotes 44%.In this way, to edges cover into
After row enhancing, by taking TD-LTE and TD-SCDMA as an example, website can be saved and create cost, reduce base station construction cost.
It should be understood by those skilled in the art that, the embodiment of the present invention can provide as method, system or computer program
Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the present invention
Apply the form of example.Moreover, it wherein includes the computer of computer usable program code that the present invention, which can be used in one or more,
The computer program implemented in usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) produces
The form of product.
The present invention be referring to according to the method for the embodiment of the present invention, the process of equipment (system) and computer program product
Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions
The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs
Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real
The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates,
Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or
The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one
The step of function of being specified in a box or multiple boxes.
Although preferred embodiments of the present invention have been described, it is created once a person skilled in the art knows basic
Property concept, then additional changes and modifications can be made to these embodiments.So it includes excellent that the following claims are intended to be interpreted as
It selects embodiment and falls into all change and modification of the scope of the invention.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (4)
1. a kind of signal processing method based on base station system, which is characterized in that the base station system includes first movement communication
The the 2nd RRU and second day of the first radio frequency remote unit RRU and first antenna antenna-feeder system of system, the second mobile communication system
The baseband processing unit BBU that line antenna-feeder system and first movement communication system and the second mobile communication system are shared, in which: institute
Stating BBU includes the first baseband board of first movement communication system and the second baseband board of the second mobile communication system, and described first
Baseband board is connected by backboard with second baseband board and interacts I/Q data；First baseband board passes through the first RRU
It is connect with the first antenna antenna-feeder system；Second baseband board passes through the 2nd RRU and the second antenna antenna feeder system
System connection；The described method includes:
The first antenna antenna-feeder system and the second antenna antenna-feeder system receive the first shifting of user equipment (UE) transmission respectively
First uplink signal of dynamic communication system；
First uplink signal is sent respectively to institute by the first antenna antenna-feeder system and the second antenna antenna-feeder system
It states the first RRU and the 2nd RRU is sampled to obtain the first I/Q data；
The first I/Q data-signal that sampling obtains is sent respectively to first base band by the first RRU and the 2nd RRU
Plate and second baseband board；
Second baseband board is sent to first baseband board by the first I/Q data-signal that the backboard receives；
First baseband board merges the first I/Q data-signal sent to the first RRU and second baseband board and distinguishes
The Soft Inform ation obtained after being demodulated.
2. the method as described in claim 1, which is characterized in that first baseband board is using maximum-ratio combing mode or waits
Gain merges mode or selection combination mode merges the first I/Q sent to the first RRU and second baseband board
The Soft Inform ation that data-signal obtains after being demodulated respectively.
3. the method as described in claim 1, which is characterized in that further include:
The second antenna antenna-feeder system receives the second uplink signal of second mobile communication system simultaneously；And
Second uplink signal is sent to the 2nd RRU to be sampled to obtain the 2nd I/Q data-signal；
The 2nd I/Q data-signal is sent to second baseband board and is demodulated to obtain described second by the 2nd RRU
The Soft Inform ation of I/Q data-signal.
4. method as claimed in claim 1,2 or 3, which is characterized in that if the first I/Q number that the 2nd RRU is sampled
When being greater than the optical port bandwidth of the 2nd RRU configuration according to signal bandwidth and/or the 2nd I/Q data signal bandwidth, described in transmission
Before first I/Q data-signal and/or the 2nd I/Q data-signal, further includes:
CPRI compression is carried out to the first I/Q data-signal and/or the 2nd I/Q data-signal；And
Before first I/Q data-signal of compression and/or the 2nd I/Q data-signal are sent to second baseband board, also wrap
It includes:
The first I/Q data-signal and/or the 2nd I/Q data-signal are unziped it.
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| CN106685758B (en) * | 2016-12-19 | 2019-11-05 | 重庆重邮汇测通信技术有限公司 | LTE eat dishes without rice or wine monitor baseband board initial data save, inquiry and back method |
| CN111970707B (en) * | 2019-05-20 | 2023-06-30 | 成都鼎桥通信技术有限公司 | PDT sector merging method and dual-mode base station |
| CN114640714B (en) * | 2020-11-30 | 2024-01-30 | 大唐移动通信设备有限公司 | 4G and 5G co-station method, 5G base station and storage medium |
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| CN101035328A (en) * | 2007-04-25 | 2007-09-12 | 中兴通讯股份有限公司 | Electrical-adjusting antenna control method and system in the radio communication system |
| CN101179325A (en) * | 2007-11-09 | 2008-05-14 | ***通信集团福建有限公司 | Wireless signal uniform distribution apparatus for tunnel |
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