CN104218981B - The combination treatment method and equipment of a kind of multiple antennas - Google Patents
The combination treatment method and equipment of a kind of multiple antennas Download PDFInfo
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- CN104218981B CN104218981B CN201410425945.8A CN201410425945A CN104218981B CN 104218981 B CN104218981 B CN 104218981B CN 201410425945 A CN201410425945 A CN 201410425945A CN 104218981 B CN104218981 B CN 104218981B
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Abstract
The invention discloses a kind of combination treatment method of multiple antennas and equipment, and affixing one's name to first antenna and the second antenna, this method in the same Intra-cell of base station equipment includes：The base station equipment carries out joint transmission by first antenna and the second antenna to downlink data；And/or the base station equipment carries out joint reception by first antenna and the second antenna to upstream data.In the embodiment of the present invention, first antenna and the second antenna are affixed one's name to by the same Intra-cell in base station equipment, and joint transmission is carried out to downlink data by first antenna and the second antenna, joint reception is carried out to upstream data by first antenna and the second antenna, so as to lift the covering performance of up-downgoing channel and user data rate, meets super the needs of far covering.
Description
Technical field
The present invention relates to communication technical field, the combination treatment method and equipment of especially a kind of multiple antennas, particularly relate to
A kind of and method and apparatus that multiple antennas joint is sent in same cell and joint receives.
Background technology
For the super application scenarios far covered, larger MPS process distance is often required that.For example, answering in sea covering
With under scene, generally require MPS process distance reach dozens of kilometres.In order to support LTE (Long Term
Evolution, Long Term Evolution) system super remote covering, agreement defines largest cell coverage distance as 100 kilometers, and defines
The leading form of three kinds of PRACH (Packet Random Access Channel, Packet Random Access Channel) channel, i.e., before
Lead form 1, leading form 2 and leading form 3.Wherein, leading form 1 supports 77 kilometers of covering radius, and leading form 3 is supported
107 kilometers of covering radius.
In the prior art, for TD-LTE (Time Division-Long Time Evolution, time-division Long Term Evolution)
System, the networking application of the antenna of generally use 8.In general, a cell is only with a secondary 8 antennas covering.Based on this,
The lifting of cell edge covering performance relies primarily on the business beam shaping of 8 antennas, and the lifting of up covering performance mainly comes
From the reception diversity of 8 antennas.
When a cell is only with a secondary 8 antennas covering, city covering demand and rural area covering can be substantially met
Demand, it is still, existing for the application scenarios of super remote covering (such as requiring coverage distance up to more than 40 kilometers of super remote covering)
Base station equipment can not typically meet super the needs of far covering.
The content of the invention
The embodiment of the present invention provides a kind of combination treatment method and equipment of multiple antennas, with by being deployed in same cell
Two slave antennas lifting covering performance, meets to surpass the needs of far covering.
The embodiment of the present invention provides a kind of combination treatment method of multiple antennas, in the same Intra-cell administration the of base station equipment
One antenna and the second antenna, the described method comprises the following steps：
The base station equipment carries out joint transmission by first antenna and the second antenna to downlink data；And/or
The base station equipment carries out joint reception by first antenna and the second antenna to upstream data.
The base station equipment carries out the process of joint transmission by first antenna and the second antenna to downlink data, specific bag
Include：Under transmission mode TM7 patterns or transmission mode TM8 single-stream modes, the base station equipment by the first antenna and
Second antenna sends identical downlink data；Or under TM8 double-stream modes, the base station equipment passes through described first
Antenna and second antenna send different downlink datas.
The base station equipment sends identical downlink data, specific bag by the first antenna and second antenna
Include：The first wireless radiofrequency extension unit RRU that the base station equipment pair is connected with the first antenna and with described second day
The 2nd connected RRU of line does joint antenna calibration, so as to possess consistent phase width between the first RRU and the 2nd RRU
Feature and up-downgoing channel reciprocity；The base station equipment is by the wave beam forming vector of the first antenna to downlink data
Carry out beam forming processing, and by the first antenna to user equipment send beam forming processing after downlink data；Institute
State base station equipment and beam forming processing is carried out to the downlink data by the wave beam forming vector of second antenna, and pass through
Second antenna to the user equipment send beam forming processing after downlink data.
The base station equipment carries out beam forming processing by the wave beam forming vector of the first antenna to downlink data,
Specifically include：The base station equipment carries out detection reference signal SRS channel estimations to the first antenna, is estimated according to SRS channels
Evaluation calculates the wave beam forming vector of the first antenna, and downlink data is existed using the wave beam forming vector of the first antenna
Beam forming processing is carried out in the first antenna；
The base station equipment carries out wave beam forming by the wave beam forming vector of second antenna to the downlink data
Processing, is specifically included：The base station equipment carries out SRS channel estimations to second antenna, is calculated according to SRS channel estimation values
Second antenna wave beam forming vector, and using second antenna wave beam forming vector to the downlink data in institute
State and beam forming processing is carried out on the second antenna.
The base station equipment sends different downlink datas, specific bag by the first antenna and second antenna
Include：The base station equipment calculates the wave beam forming vector of the first antenna according to beamforming algorithm, and uses described first
The wave beam forming vector of antenna carries out beam forming processing to downlink data in the first antenna, and passes through described first day
Line to user equipment send beam forming processing after downlink data；The base station equipment is according to calculating beamforming algorithm
Second antenna wave beam forming vector, and using second antenna wave beam forming vector to downlink data at described second day
Carry out beam forming processing on line, and the lower line number after sending beam forming processing to user equipment by second antenna
According to.
Under TM7 patterns, the first antenna is secondary 8 antennas, and user's DRS (Dedicated Reference Signal) of the first antenna
DM-RS antenna port uses port 5；Second antenna is secondary 8 antennas, and the DM-RS antenna port of second antenna
Using port 5；Under TM8 single-stream modes, the first antenna is secondary 8 antennas, and the DM-RS antenna ends of the first antenna
Mouth uses port 7；Second antenna is secondary 8 antennas, and the DM-RS antenna port of second antenna uses port 7；
Under TM8 double-stream modes, the first antenna is secondary 8 antennas, and the DM-RS antenna port of the first antenna is adopted
With port 7；Second antenna is secondary 8 antennas, and the DM-RS antenna port of second antenna uses port 8；Wherein,
Non-correlation between the port 7 of the first antenna and the port 8 of second antenna is by the first antenna and described the
Spacing between two antennas ensures.
The base station equipment carries out the process of joint reception by first antenna and the second antenna to upstream data, specific bag
Include：
For Physical Uplink Shared Channel PUSCH channels, the base station equipment passes through the first antenna and described second
Antenna receives the PUSCH data of user equipment transmission, and the PUSCH data received to the first antenna and described second simultaneously
The PUSCH data that antenna receives carry out data merging；
For ascending control channel, the base station equipment receives use simultaneously by the first antenna and second antenna
The Physical Uplink Control Channel PUCCH data that family equipment is sent, and the PUCCH data that is received to the first antenna and described the
The PUCCH data that two antennas receive carries out data merging；
For ascending control channel, the base station equipment receives use simultaneously by the first antenna and second antenna
The Packet Random Access Channel PRACH data that family equipment is sent, and the PRACH data that are received to the first antenna and described the
The PRACH data that two antennas receive carry out data merging；
For detection reference signal SRS, the base station equipment is connect simultaneously by the first antenna and second antenna
The SRS that user equipment is sent is received, and the SRS that the SRS received to the first antenna and second antenna receive is carried out respectively
SRS channel estimation process, and SRS channel estimation values are merged.
The embodiment of the present invention provides a kind of base station equipment, the base station equipment same Intra-cell administration's first antenna and
Second antenna, the base station equipment specifically include：
Determining module, for determining that the same Intra-cell of base station equipment affixes one's name to first antenna and the second antenna；
Processing module, for carrying out joint transmission to downlink data by the first antenna and second antenna；With/
Or, joint reception is carried out to upstream data by the first antenna and second antenna.
The processing module, specifically for carrying out joint transmission to downlink data by first antenna and the second antenna
When, under transmission mode TM7 patterns or transmission mode TM8 single-stream modes, pass through the first antenna and second antenna
Send identical downlink data；Or under TM8 double-stream modes, sent not by the first antenna and second antenna
Same downlink data.
The processing module, specifically for the line number in the case where sending identical by the first antenna and second antenna
According to when, couple the first wireless radiofrequency extension unit RRU being connected with the first antenna and be connected with second antenna
Two RRU do joint antenna calibration so that possess between the first RRU and the 2nd RRU consistent phase width feature and on
Down channel reciprocity；
Beam forming processing is carried out to downlink data by the wave beam forming vector of the first antenna, and passes through described the
One antenna to user equipment send beam forming processing after downlink data；
Beam forming processing is carried out to the downlink data by the wave beam forming vector of second antenna, and passes through institute
State the downlink data after the second antenna sends beam forming processing to the user equipment.
The processing module, it is further used for carrying out downlink data in the wave beam forming vector by the first antenna
During beam forming processing, detection reference signal SRS channel estimations are carried out to the first antenna, according to SRS channel estimation value meters
The wave beam forming vector of the first antenna is calculated, using the wave beam forming vector of the first antenna to downlink data described the
Beam forming processing is carried out on one antenna；
The processing module, it is further used in the wave beam forming vector by second antenna to the downlink data
When carrying out beam forming processing, SRS channel estimations are carried out to second antenna, described the is calculated according to SRS channel estimation values
Two antennas wave beam forming vector, and using second antenna wave beam forming vector to the downlink data described second
Beam forming processing is carried out on antenna.
The processing module, specifically for sending different lower line numbers by the first antenna and second antenna
According to when, the wave beam forming vector of the first antenna is calculated according to beamforming algorithm, and use the wave beam of the first antenna
Figuration vector carries out beam forming processing to downlink data in the first antenna, and is set by the first antenna to user
Preparation send the downlink data after beam forming processing；According to beamforming algorithm calculate the wave beam forming of second antenna to
Amount, and downlink data is carried out at wave beam forming on second antenna using the wave beam forming vector of second antenna
Reason, and by second antenna to user equipment send beam forming processing after downlink data.
Under TM7 patterns, the first antenna is secondary 8 antennas, and user's DRS (Dedicated Reference Signal) of the first antenna
DM-RS antenna port uses port 5；Second antenna is secondary 8 antennas, and the DM-RS antenna port of second antenna
Using port 5；Under TM8 single-stream modes, the first antenna is secondary 8 antennas, and the DM-RS antenna ends of the first antenna
Mouth uses port 7；Second antenna is secondary 8 antennas, and the DM-RS antenna port of second antenna uses port 7；
Under TM8 double-stream modes, the first antenna is secondary 8 antennas, and the DM-RS antenna port of the first antenna is adopted
With port 7；Second antenna is secondary 8 antennas, and the DM-RS antenna port of second antenna uses port 8；Wherein,
Non-correlation between the port 7 of the first antenna and the port 8 of second antenna is by the first antenna and described the
Spacing between two antennas ensures.
The processing module, specifically for carrying out joint reception to upstream data by first antenna and the second antenna
When, for Physical Uplink Shared Channel PUSCH channels, user is received simultaneously by the first antenna and second antenna and set
The PUSCH data that preparation is sent, and the PUSCH numbers that the PUSCH data received to the first antenna and second antenna receive
According to progress data merging；
For ascending control channel, receive what user equipment was sent simultaneously by the first antenna and second antenna
Physical Uplink Control Channel PUCCH data, and the PUCCH data received to the first antenna and second antenna receive
PUCCH data carries out data merging；
For ascending control channel, receive what user equipment was sent simultaneously by the first antenna and second antenna
Packet Random Access Channel PRACH data, and the PRACH data received to the first antenna and second antenna receive
PRACH data carry out data merging；
For detection reference signal SRS, user equipment is received by the first antenna and second antenna simultaneously and sent out
The SRS sent, and the SRS that the SRS received to the first antenna and second antenna receive is carried out at SRS channel estimations respectively
Reason, and SRS channel estimation values are merged.
Compared with prior art, the embodiment of the present invention at least has advantages below：In the embodiment of the present invention, by base station
Same Intra-cell administration's first antenna of equipment and the second antenna, and downlink data is carried out by first antenna and the second antenna
Joint is sent, and joint reception is carried out to upstream data by first antenna and the second antenna, so as to lift covering for up-downgoing channel
Lid performance and user data rate, meets super the needs of far covering.Further, by first antenna and the second antenna to descending
Data carry out joint transmission, and the signal for receiving user equipment is the in-phase stacking letter of first antenna and the second antenna transmission signal
Number, signal intensity is strengthened, and can obtain 3dB array gain, so as to lift the covering performance of down channel, and lifts user
Downstream data rate.Joint reception is carried out to upstream data by first antenna and the second antenna, 3dB diversity gain can be obtained
And array gain, so as to lift the covering performance of reverse link traffic channel.
Brief description of the drawings
In order to clearly illustrate the technical scheme of the embodiment of the present invention, institute in being described below to the embodiment of the present invention
The accompanying drawing needed to use is briefly described, it should be apparent that, drawings in the following description are only some implementations of the present invention
Example, for those of ordinary skill in the art, on the premise of not paying creative work, it can also be implemented according to the present invention
These accompanying drawings of example obtain other accompanying drawings.
Fig. 1 is a kind of combination treatment method schematic flow sheet for multiple antennas that the embodiment of the present invention one proposes；
Fig. 2 and Fig. 3 is the schematic diagram that the two slave antennas joint proposed in the embodiment of the present invention one is sent；
Fig. 4 is a kind of structural representation for base station equipment that the embodiment of the present invention two proposes.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only the part of the embodiment of the present invention, rather than whole embodiments.Base
Embodiment in the present invention, those of ordinary skill in the art obtained under the premise of creative work is not made it is all its
His embodiment, belongs to the scope of protection of the invention.
Embodiment one
For problems of the prior art, the embodiment of the present invention one proposes a kind of combination treatment method of multiple antennas,
This method can be applied in TD-LTE system.In the embodiment of the present invention, affixed one's name to first day in the same Intra-cell of base station equipment
Line and the second antenna.Wherein, same cell is referred to as same sector.Further, first antenna and the second antenna Tongfang
Position is deployed in same cell, and the spacing of at least 10 times wavelength is pulled open between first antenna and the second antenna, to ensure that two is secondary
Non-correlation between antenna.
In the embodiment of the present invention, base station equipment carries out joint transmission by first antenna and the second antenna to downlink data.
And/or base station equipment carries out joint reception by first antenna and the second antenna to upstream data.Wherein, for base station equipment
The process of joint transmission is only carried out to downlink data by first antenna and the second antenna, or, base station equipment only passes through first
Antenna and the second antenna carry out the process of joint reception to upstream data, and this is no longer repeated in detail in the embodiment of the present invention.With
Joint transmission is carried out to downlink data by first antenna and the second antenna for base station equipment down, and passes through first antenna and the
Two antennas carry out the process of joint reception to upstream data, and this process is described in detail in the embodiment of the present invention.
As shown in figure 1, the combination treatment method of the multiple antennas specifically may comprise steps of：
Step 101, base station equipment carries out joint transmission by first antenna and the second antenna to downlink data.
Step 102, base station equipment carries out joint reception by first antenna and the second antenna to upstream data.
In actual applications or base station equipment first passes through first antenna and the second antenna joins to upstream data
Splice grafting is received, after joint transmission carried out to downlink data by first antenna and the second antenna.
In the embodiment of the present invention, first antenna and the second antenna are affixed one's name to by the same Intra-cell in base station equipment, and lead to
Cross first antenna and the second antenna carries out joint transmission to downlink data, the signal for receiving user equipment is first antenna and
The in-phase stacking signal of two antenna transmission signals, signal intensity are strengthened, and 3dB array gain can be obtained, so as to be lifted down
The covering performance of row channel, and user's downstream data rate is lifted, meet super the needs of far covering.By in the same of base station equipment
One Intra-cell affixes one's name to first antenna and the second antenna, and upstream data combine connecing by first antenna and the second antenna
Receive, 3dB diversity gain and array gain can be obtained, so as to lift the covering performance of reverse link traffic channel.
In the embodiment of the present invention, base station equipment carries out joint transmission by first antenna and the second antenna to downlink data
Process, it is specifically including but not limited to：Under TM7 (transmission mode 7) pattern, base station equipment is sent out by first antenna and the second antenna
Send identical downlink data；Based on this, after signal that user equipment (UE) receives is two same data stream in-phase stackings
Signal, so as to lift descending covering performance.Or under TM8 (transmission mode 8) single-stream mode, base station equipment passes through first day
Line and the second antenna send identical downlink data；Based on this, the signal that user equipment receives is that two same data streams are same
Signal after superimposed, so as to lift descending covering performance.Or under TM8 double-stream modes, base station equipment passes through first antenna
The downlink data different with the transmission of the second antenna；Based on this, the signal that user equipment receives is two independent data flows, from
And lift downstream data rate.
In the embodiment of the present invention, as shown in Fig. 2 under TM7 patterns, first antenna is secondary 8 antennas, and the first antenna
DM-RS (UE-specific Reference Signals, user's DRS (Dedicated Reference Signal)) antenna port use port 5；Second
Antenna is secondary 8 antennas, and the DM-RS antenna port of second antenna uses port 5.Under TM8 single-stream modes, first antenna
It is secondary 8 antennas, and the DM-RS antenna port of the first antenna uses port 7；Second antenna is secondary 8 antennas, and this second
The DM-RS antenna port of antenna uses port 7.Wherein, 8 antennas refer to 8 aerial arrays.
Under the application scenarios shown in Fig. 2, first antenna is antenna A, and the second antenna is antenna B.
In the embodiment of the present invention, under TM7 patterns or TM8 single-stream modes, first antenna and the second antenna are same
Relevant joint is carried out in cell to same downlink data to send.In the process, base station equipment passes through first antenna and second
Antenna sends identical downlink data, specifically includes：The first RRU (Radio that base station equipment pair is connected with first antenna
Remote Unit, wireless radiofrequency extension unit) and the 2nd RRU that is connected with the second antenna do joint antenna calibration so that
Possess consistent phase width feature and up-downgoing channel reciprocity between one RRU and the 2nd RRU.Base station equipment passes through first antenna
Wave beam forming vector to downlink data carry out beam forming processing, and by first antenna to user equipment send wave beam forming
Downlink data after processing.Base station equipment (is carried out by the wave beam forming vector of the second antenna to downlink data with first antenna
The downlink data of beam forming processing is identical) beam forming processing is carried out, and wave beam is sent to user equipment by the second antenna
Downlink data after figuration processing.
In the embodiment of the present invention, base station equipment carries out wave beam tax by the wave beam forming vector of first antenna to downlink data
The process of shape processing, is specifically included：Base station equipment carries out SRS to first antenna and (Sounding Reference Signal, visited
Survey reference signal) channel estimation, and according to the wave beam forming vector of SRS channel estimation values calculating first antenna, and use first
The wave beam forming vector of antenna carries out beam forming processing on the first antenna to downlink data.Further, base station equipment is led to
The wave beam forming vector for crossing the second antenna carries out the process of beam forming processing to downlink data, specifically includes：Base station equipment pair
Second antenna carries out SRS channel estimations, and the wave beam forming vector of the second antenna is calculated according to SRS channel estimation values, and uses
The wave beam forming vector of second antenna carries out beam forming processing on the second antenna to downlink data.
Wherein, after base station equipment carries out SRS channel estimations to first antenna, based on beamforming algorithm (such as EBB
(Eigen-Based Beamforming, characteristic root algorithm) algorithm), first antenna can be calculated using SRS channel estimation values
Wave beam forming vector A, and beam forming processing is carried out on the first antenna to downlink data using wave beam forming vector A.Base
After station equipment carries out SRS channel estimations to the second antenna, based on beamforming algorithm, SRS channel estimation values can be utilized to calculate
Go out the wave beam forming vector B of the second antenna, and wave beam tax is carried out on the second antenna to downlink data using wave beam forming vector B
Shape processing.
After above-mentioned processing, first antenna and the second antenna send beamformed signals, user equipment to UE simultaneously
The signal received is the in-phase stacking signal of first antenna and the second antenna transmission signal, and the signal intensity of downlink data obtains
Enhancing, 3dB array gain can be obtained, so as to lift descending PDSCH (Physical Downlink Shared
Channel, Physical Downlink Shared Channel) channel covering performance.
In the embodiment of the present invention, as shown in figure 3, under TM8 double-stream modes, first antenna is secondary 8 antennas, and this first
The DM-RS antenna port of antenna can use port 7, i.e., DM-RS antenna port 7 is mapped in first antenna；Second antenna
It is secondary 8 antennas, and the DM-RS antenna port of second antenna can use port 8, i.e., be mapped to DM-RS antenna port 8
On second antenna.Wherein, 8 antennas refer to 8 aerial arrays.Further, the end of the antenna of port 7 and second of first antenna
Non-correlation between mouth 8 is ensured by the spacing between first antenna and the second antenna.
Under the application scenarios shown in Fig. 3, first antenna is antenna A, and the second antenna is antenna B.
In the embodiment of the present invention, under TM8 double-stream modes, base station equipment is sent different by first antenna and the second antenna
Downlink data, specifically include：Base station equipment calculates the wave beam forming vector of first antenna according to beamforming algorithm, and uses
The wave beam forming vector of first antenna carries out beam forming processing to downlink data on the first antenna, and by first antenna to
User equipment sends the downlink data after beam forming processing；Further, base station equipment calculates the according to beamforming algorithm
The wave beam forming vector of two antennas, and traveling wave is entered on the second antenna to downlink data using the wave beam forming vector of the second antenna
Beam figuration processing, and by the second antenna to user equipment send beam forming processing after downlink data.
Wherein, for first antenna DM-RS antenna port 7 DM-RS signals, based on beamforming algorithm (such as EBB calculate
Method), it can calculate the wave beam forming vector A of first antenna, and using wave beam forming vector A to downlink data (i.e. first day
Data flow A on line) beam forming processing is carried out on the first antenna.For the DM- of the DM-RS antenna port 8 of the second antenna
RS signals, based on beamforming algorithm (such as EBB algorithms), the wave beam forming vector B of the second antenna can be calculated, and use ripple
Beam figuration vector B carries out beam forming processing on the second antenna to downlink data (data stream B i.e. on the second antenna).So
Afterwards, base station equipment by first antenna to user equipment send beam forming processing after data flow A, and by the second antenna to
User equipment sends the data stream B after beam forming processing.
It should be noted that under under TM8 double-stream modes, it is also necessary to estimate the SRS channels of first antenna and the second antenna
Evaluation merges processing, and to synthesize the SRS channel estimation values of common antenna, then, base station equipment is according to existing TM8 double fluids ripple
Two orthogonal figuration vectors are calculated in beam forming algorithm.
After above-mentioned processing, in the embodiment of the present invention, due to launching one respectively in first antenna and the second antenna
Individual data flow, the power of each data flow is double, can obtain 3dB power gain in theory, so as to lift PDSCH channels
Covering performance, and lift user's downstream data rate.
In above-mentioned processing procedure, downlink data is specifically including but not limited to：PDSCH data.
In embodiments of the present invention, base station equipment carries out joint reception by first antenna and the second antenna to upstream data
Process, be specifically including but not limited to following situation：
Situation one, believe for PUSCH (Physical Uplink Shared Channel, Physical Uplink Shared Channel)
Road, base station equipment receive the PUSCH data of user equipment transmission by first antenna and the second antenna simultaneously, and to first antenna
The PUSCH data that the PUSCH data and the second antenna received receive carry out data merging.Wherein, first in same cell
Antenna and the second antenna receive the PUSCH signals of user equipment transmitting simultaneously, and the connection of PUSCH data is made in same cell
Splice grafting is received, and 3dB diversity gain and array gain can be obtained, so as to lift the covering performance of reverse link traffic channel.Combine and connect
Debit's case can use existing up CoMP (Co-ordinated Multiple Point Transmission, multi-point joint
Transmission) characteristic implementation, such as multiple antennas equilibrium Merge Scenarios or symbol merging scheme.
Situation two, user is received simultaneously by first antenna and the second antenna and set for ascending control channel, base station equipment
PUCCH (Physical Uplink Control Channel, Physical Uplink Control Channel) data that preparation is sent, and to first
The PUCCH data that the PUCCH data and the second antenna that antenna receives receive carries out data merging.Wherein, believe for upload control
Road, the antenna data merging method of the ascending control channel used according to single slave antenna, base station equipment are divided in same cell
The PUCCH data received in the other PUCCH data to being received in first antenna and the second antenna merges, so as to
To obtain 3dB diversity gain and array gain, and the covering performance of ascending control channel can be lifted.
Situation three, user is received simultaneously by first antenna and the second antenna and set for ascending control channel, base station equipment
PRACH (Packet Random Access Channel, Packet Random Access Channel) data that preparation is sent, and to first antenna
The PRACH data that the PRACH data and the second antenna received receive carry out data merging.Wherein, for ascending control channel, press
The antenna data merging method of the ascending control channel used according to single slave antenna, base station equipment is in same cell respectively to the
The PRACH data received on one antenna and the PRACH data received on the second antenna merge, it is hereby achieved that
3dB diversity gain and array gain, and the covering performance of ascending control channel can be lifted.
Situation four, pass through for SRS (Sounding Reference Signal, detection reference signal), base station equipment
One antenna and the second antenna receive the SRS of user equipment transmission simultaneously, and the SRS received to first antenna and the second antenna receive
SRS carry out SRS channel estimation process respectively, and SRS channel estimation values are merged.Wherein, for SRS signal, base station
Equipment carries out SRS channel estimation process respectively in same cell to first antenna and the second antenna, afterwards by first antenna
Processing is merged with the SRS channel estimation values of the second antenna, the SRS channel estimation values after merging are used to calculate upstream sinr
(Signal to Interference plus Noise Ratio, Signal to Interference plus Noise Ratio) and up RSRP
(Reference Signal Received Power, reference symbol receiving power), so as to lift out-hole run precision, and on
The lifting of row SINR measurement accuracy, can lift the gain of uplink scheduling.
In the embodiment of the present invention, when carrying out joint reception to upstream data by first antenna and the second antenna, first
Antenna is secondary 8 antennas, and the second antenna is secondary 8 antennas；Or first antenna is secondary 2 antennas, the second antenna is a pair 2
Antenna；Or first antenna is secondary 8 antennas, the second antenna is secondary 2 antennas.8 antennas refer to 8 aerial arrays, 2 days
Line refers to 2 aerial arrays.
Embodiment two
Based on the inventive concept same with the above method, a kind of base station equipment is additionally provided in the embodiment of the present invention, in institute
The same Intra-cell administration's first antenna and the second antenna of base station equipment are stated, as shown in figure 4, the base station equipment specifically includes：
Determining module 11, for determining that the same Intra-cell of base station equipment affixes one's name to first antenna and the second antenna；
Processing module 12, for carrying out joint transmission to downlink data by the first antenna and second antenna；
And/or joint reception is carried out to upstream data by the first antenna and second antenna.
The processing module 12, specifically for carrying out joint transmission to downlink data by first antenna and the second antenna
When, under transmission mode TM7 patterns or transmission mode TM8 single-stream modes, pass through the first antenna and second antenna
Send identical downlink data；Or under TM8 double-stream modes, sent not by the first antenna and second antenna
Same downlink data.
The processing module 12, specifically for descending by the first antenna and second antenna transmission identical
During data, couple the first wireless radiofrequency extension unit RRU being connected with the first antenna and it is connected with second antenna
2nd RRU does joint antenna calibration so that possess between the first RRU and the 2nd RRU consistent phase width feature and
Up-downgoing channel reciprocity；
Beam forming processing is carried out to downlink data by the wave beam forming vector of the first antenna, and passes through described the
One antenna to user equipment send beam forming processing after downlink data；
Beam forming processing is carried out to the downlink data by the wave beam forming vector of second antenna, and passes through institute
State the downlink data after the second antenna sends beam forming processing to the user equipment.
The processing module 12, it is further used for entering downlink data by the wave beam forming vector of the first antenna
During row beam forming processing, detection reference signal SRS channel estimations are carried out to the first antenna, according to SRS channel estimation values
The wave beam forming vector of the first antenna is calculated, using the wave beam forming vector of the first antenna to downlink data described
Beam forming processing is carried out in first antenna；
The processing module 12, it is further used in the wave beam forming vector by second antenna to the lower line number
During according to carrying out beam forming processing, SRS channel estimations are carried out to second antenna, according to calculating SRS channel estimation values
The wave beam forming vector of second antenna, and using second antenna wave beam forming vector to the downlink data described the
Beam forming processing is carried out on two antennas.
The processing module 12, specifically for sent by the first antenna and second antenna it is different descending
During data, the wave beam forming vector of the first antenna is calculated according to beamforming algorithm, and uses the ripple of the first antenna
Beam figuration vector carries out beam forming processing to downlink data in the first antenna, and by the first antenna to user
Equipment sends the downlink data after beam forming processing；According to beamforming algorithm calculate the wave beam forming of second antenna to
Amount, and downlink data is carried out at wave beam forming on second antenna using the wave beam forming vector of second antenna
Reason, and by second antenna to user equipment send beam forming processing after downlink data.
Under TM7 patterns, the first antenna is secondary 8 antennas, and user's DRS (Dedicated Reference Signal) of the first antenna
DM-RS antenna port uses port 5；Second antenna is secondary 8 antennas, and the DM-RS antenna port of second antenna
Using port 5；Under TM8 single-stream modes, the first antenna is secondary 8 antennas, and the DM-RS antenna ends of the first antenna
Mouth uses port 7；Second antenna is secondary 8 antennas, and the DM-RS antenna port of second antenna uses port 7；
Under TM8 double-stream modes, the first antenna is secondary 8 antennas, and the DM-RS antenna port of the first antenna is adopted
With port 7；Second antenna is secondary 8 antennas, and the DM-RS antenna port of second antenna uses port 8；Wherein,
Non-correlation between the port 7 of the first antenna and the port 8 of second antenna is by the first antenna and described the
Spacing between two antennas ensures.
The processing module 12, specifically for carrying out joint reception to upstream data by first antenna and the second antenna
When, for Physical Uplink Shared Channel PUSCH channels, user is received simultaneously by the first antenna and second antenna and set
The PUSCH data that preparation is sent, and the PUSCH numbers that the PUSCH data received to the first antenna and second antenna receive
According to progress data merging；
For ascending control channel, receive what user equipment was sent simultaneously by the first antenna and second antenna
Physical Uplink Control Channel PUCCH data, and the PUCCH data received to the first antenna and second antenna receive
PUCCH data carries out data merging；
For ascending control channel, receive what user equipment was sent simultaneously by the first antenna and second antenna
Packet Random Access Channel PRACH data, and the PRACH data received to the first antenna and second antenna receive
PRACH data carry out data merging；
For detection reference signal SRS, user equipment is received by the first antenna and second antenna simultaneously and sent out
The SRS sent, and the SRS that the SRS received to the first antenna and second antenna receive is carried out at SRS channel estimations respectively
Reason, and SRS channel estimation values are merged.
Wherein, the modules of apparatus of the present invention can be integrated in one, and can also be deployed separately.Above-mentioned module can close
And be a module, multiple submodule can also be further split into.
Through the above description of the embodiments, those skilled in the art can be understood that the present invention can be by
Software adds the mode of required general hardware platform to realize, naturally it is also possible to which by hardware, but the former is more in many cases
Good embodiment.Based on such understanding, what technical scheme substantially contributed to prior art in other words
Part can be embodied in the form of software product, and the computer software product is stored in a storage medium, if including
It is dry to instruct to cause a computer equipment (be personal computer, server, or network equipment etc.) to perform this hair
Method described in bright each embodiment.It will be appreciated by those skilled in the art that accompanying drawing is the schematic diagram of a preferred embodiment,
Module or flow in accompanying drawing are not necessarily implemented necessary to the present invention.It will be appreciated by those skilled in the art that in embodiment
Device in module can according to embodiment describe be distributed in the device of embodiment, respective change position can also be carried out
In one or more devices different from the present embodiment.The module of above-described embodiment can be merged into a module, can also
It is further split into multiple submodule.The embodiments of the present invention are for illustration only, do not represent the quality of embodiment.With
Several specific embodiments of the upper disclosed only present invention, still, the present invention is not limited to this, any those skilled in the art
Member can think of change should all fall into protection scope of the present invention.
Claims (8)
1. a kind of combination treatment method of multiple antennas, it is characterised in that affix one's name to first antenna in the same Intra-cell of base station equipment
With the second antenna, the described method comprises the following steps：
The base station equipment carries out joint transmission by first antenna and the second antenna to downlink data；And/or
The base station equipment carries out joint reception by first antenna and the second antenna to upstream data；
Wherein, the spacing of at least 10 times wavelength is pulled open between first antenna and the second antenna；
The base station equipment carries out the process of joint transmission by first antenna and the second antenna to downlink data, specifically includes：
Under TM8 double-stream modes, the base station equipment is sent different descending by the first antenna and second antenna
Data, including：
The base station equipment calculates the wave beam forming vector of the first antenna according to beamforming algorithm, and uses described first
The wave beam forming vector of antenna carries out beam forming processing to downlink data in the first antenna, and passes through described first day
Line to user equipment send beam forming processing after downlink data；The base station equipment is according to calculating beamforming algorithm
Second antenna wave beam forming vector, and using second antenna wave beam forming vector to downlink data at described second day
Carry out beam forming processing on line, and the lower line number after sending beam forming processing to user equipment by second antenna
According to；Or
Under transmission mode TM7 patterns or transmission mode TM8 single-stream modes, the base station equipment by the first antenna and
Second antenna sends identical downlink data, including：
The first wireless radiofrequency extension unit RRU that the base station equipment pair is connected with the first antenna and with described second day
The 2nd connected RRU of line does joint antenna calibration, so as to possess consistent phase width between the first RRU and the 2nd RRU
Feature and up-downgoing channel reciprocity；The base station equipment is by the wave beam forming vector of the first antenna to downlink data
Carry out beam forming processing, and by the first antenna to user equipment send beam forming processing after downlink data；Institute
State base station equipment and beam forming processing is carried out to the downlink data by the wave beam forming vector of second antenna, and pass through
Second antenna to the user equipment send beam forming processing after downlink data.
2. the method as described in claim 1, it is characterised in that
The base station equipment carries out beam forming processing by the wave beam forming vector of the first antenna to downlink data, specifically
Including：The base station equipment carries out detection reference signal SRS channel estimations to the first antenna, according to SRS channel estimation values
The wave beam forming vector of the first antenna is calculated, using the wave beam forming vector of the first antenna to downlink data described
Beam forming processing is carried out in first antenna；
The base station equipment carries out beam forming processing by the wave beam forming vector of second antenna to the downlink data,
Specifically include：The base station equipment carries out SRS channel estimations to second antenna, according to calculating SRS channel estimation values
The wave beam forming vector of second antenna, and using second antenna wave beam forming vector to the downlink data described the
Beam forming processing is carried out on two antennas.
3. method as claimed in claim 1 or 2, it is characterised in that
Under TM7 patterns, the first antenna is secondary 8 antennas, and user's DRS (Dedicated Reference Signal) DM-RS of the first antenna
Antenna port uses port 5；Second antenna is secondary 8 antennas, and the DM-RS antenna port of second antenna uses end
Mouth 5；Under TM8 single-stream modes, the first antenna is secondary 8 antennas, and the DM-RS antenna port of the first antenna uses
Port 7；Second antenna is secondary 8 antennas, and the DM-RS antenna port of second antenna uses port 7；
Under TM8 double-stream modes, the first antenna is secondary 8 antennas, and the DM-RS antenna port of the first antenna uses end
Mouth 7；Second antenna is secondary 8 antennas, and the DM-RS antenna port of second antenna uses port 8；Wherein, it is described
Non-correlation between the port 7 of first antenna and the port 8 of second antenna was by the first antenna and described second day
Spacing between line ensures.
4. the method as described in claim 1, it is characterised in that the base station equipment is by first antenna and the second antenna to upper
Row data carry out the process of joint reception, specifically include：
For Physical Uplink Shared Channel PUSCH channels, the base station equipment passes through the first antenna and second antenna
The PUSCH data of user equipment transmission, and the PUSCH data received to the first antenna and second antenna are received simultaneously
The PUSCH data received carry out data merging；
For ascending control channel, the base station equipment receives user simultaneously by the first antenna and second antenna and set
The Physical Uplink Control Channel PUCCH data that preparation is sent, and the PUCCH data that is received to the first antenna and described second day
The PUCCH data that line receives carries out data merging；
For ascending control channel, the base station equipment receives user simultaneously by the first antenna and second antenna and set
The Packet Random Access Channel PRACH data that preparation is sent, and the PRACH data that are received to the first antenna and described second day
The PRACH data that line receives carry out data merging；
For detection reference signal SRS, the base station equipment receives use simultaneously by the first antenna and second antenna
The SRS that family equipment is sent, and the SRS that the SRS received to the first antenna and second antenna receive carries out SRS letters respectively
Road estimation processing, and SRS channel estimation values are merged.
5. a kind of base station equipment, it is characterised in that affix one's name to first antenna and second day in the same Intra-cell of the base station equipment
Line, the base station equipment specifically include：
Determining module, for determining that the same Intra-cell of base station equipment affixes one's name to first antenna and the second antenna；
Processing module, for carrying out joint transmission to downlink data by the first antenna and second antenna；And/or
Joint reception is carried out to upstream data by the first antenna and second antenna；
Wherein, the spacing of at least 10 times wavelength is pulled open between first antenna and the second antenna；
The processing module, specifically under TM8 double-stream modes, being sent not by the first antenna and second antenna
Same downlink data, including：Calculate the wave beam forming vector of the first antenna according to beamforming algorithm, and use described the
The wave beam forming vector of one antenna carries out beam forming processing to downlink data in the first antenna, and passes through described first
Antenna to user equipment send beam forming processing after downlink data；Second antenna is calculated according to beamforming algorithm
Wave beam forming vector, and using second antenna wave beam forming vector to downlink data in the enterprising traveling wave of the second antenna
Beam figuration processing, and by second antenna to user equipment send beam forming processing after downlink data；Or logical
Cross first antenna and the second antenna to downlink data carry out joint send when, in transmission mode TM7 patterns or transmission mode TM8
Under single-stream mode, identical downlink data is sent by the first antenna and second antenna, including：
Couple the first wireless radiofrequency extension unit RRU being connected with the first antenna and be connected with second antenna second
RRU does joint antenna calibration so that possess between the first RRU and the 2nd RRU consistent phase width feature and up and down
Row channel reciprocity；Beam forming processing is carried out to downlink data by the wave beam forming vector of the first antenna, and passed through
The first antenna to user equipment send beam forming processing after downlink data；Pass through the wave beam forming of second antenna
Vector carries out beam forming processing to the downlink data, and sends wave beam to the user equipment by second antenna and assign
Downlink data after shape processing.
6. base station equipment as claimed in claim 5, it is characterised in that
The processing module, it is further used for carrying out wave beam to downlink data in the wave beam forming vector by the first antenna
During figuration processing, detection reference signal SRS channel estimations are carried out to the first antenna, institute is calculated according to SRS channel estimation values
The wave beam forming vector of first antenna is stated, using the wave beam forming vector of the first antenna to downlink data at described first day
Beam forming processing is carried out on line；
The processing module, it is further used for carrying out the downlink data in the wave beam forming vector by second antenna
During beam forming processing, SRS channel estimations are carried out to second antenna, calculated described second day according to SRS channel estimation values
Line wave beam forming vector, and using second antenna wave beam forming vector to the downlink data in second antenna
Upper carry out beam forming processing.
7. the base station equipment as described in claim 5 or 6, it is characterised in that
Under TM7 patterns, the first antenna is secondary 8 antennas, and user's DRS (Dedicated Reference Signal) DM-RS of the first antenna
Antenna port uses port 5；Second antenna is secondary 8 antennas, and the DM-RS antenna port of second antenna uses end
Mouth 5；Under TM8 single-stream modes, the first antenna is secondary 8 antennas, and the DM-RS antenna port of the first antenna uses
Port 7；Second antenna is secondary 8 antennas, and the DM-RS antenna port of second antenna uses port 7；
Under TM8 double-stream modes, the first antenna is secondary 8 antennas, and the DM-RS antenna port of the first antenna uses end
Mouth 7；Second antenna is secondary 8 antennas, and the DM-RS antenna port of second antenna uses port 8；Wherein, it is described
Non-correlation between the port 7 of first antenna and the port 8 of second antenna was by the first antenna and described second day
Spacing between line ensures.
8. base station equipment as claimed in claim 5, it is characterised in that
The processing module is right specifically for when carrying out joint to upstream data by first antenna and the second antenna and receiving
In Physical Uplink Shared Channel PUSCH channels, user equipment is received by the first antenna and second antenna simultaneously and sent out
The PUSCH data sent, and the PUSCH data that the PUSCH data received to the first antenna and second antenna receive are entered
Row data merge；
For ascending control channel, the physics that user equipment sends is received by the first antenna and second antenna simultaneously
Ascending control channel PUCCH data, and the PUCCH data received to the first antenna and second antenna receive
PUCCH data carries out data merging；
For ascending control channel, the packet of user equipment transmission is received simultaneously by the first antenna and second antenna
RACH PRACH data, and the PRACH data received to the first antenna and second antenna receive
PRACH data carry out data merging；
For detection reference signal SRS, receive what user equipment was sent simultaneously by the first antenna and second antenna
SRS, and the SRS that the SRS received to the first antenna and second antenna receive carries out SRS channel estimation process respectively,
And SRS channel estimation values are merged.
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| CN201410425945.8A CN104218981B (en) | 2014-08-26 | 2014-08-26 | The combination treatment method and equipment of a kind of multiple antennas |
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| CN201410425945.8A CN104218981B (en) | 2014-08-26 | 2014-08-26 | The combination treatment method and equipment of a kind of multiple antennas |
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| CN104218981B true CN104218981B (en) | 2018-03-20 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107222250B (en) * | 2016-03-21 | 2021-05-04 | 中兴通讯股份有限公司 | Data transmission method and base station |
| CN107276653B (en) * | 2016-04-07 | 2021-02-12 | 普天信息技术有限公司 | Multi-antenna combining and beam forming method and device |
| CN107483125B (en) * | 2016-06-08 | 2020-06-09 | 大唐移动通信设备有限公司 | Data processing method and system based on LTE/LTE upgrade version cell |
| CN108243509B (en) * | 2016-12-23 | 2020-06-05 | 大唐移动通信设备有限公司 | Downlink data sending method and base station |
| CN108633062B (en) * | 2017-03-26 | 2021-10-29 | 上海朗帛通信技术有限公司 | Method and device for multi-antenna transmission in base station and user equipment |
| CN111371517B (en) * | 2018-12-26 | 2021-06-25 | 大唐移动通信设备有限公司 | Method and device for evaluating reciprocity of far-end interference |
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