CN104320220B - A kind of method and system of ascending multi-point collaboration - Google Patents
A kind of method and system of ascending multi-point collaboration Download PDFInfo
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- CN104320220B CN104320220B CN201410606677.XA CN201410606677A CN104320220B CN 104320220 B CN104320220 B CN 104320220B CN 201410606677 A CN201410606677 A CN 201410606677A CN 104320220 B CN104320220 B CN 104320220B
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- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/022—Site diversity; Macro-diversity
- H04B7/024—Co-operative use of antennas of several sites, e.g. in co-ordinated multipoint or co-operative multiple-input multiple-output [MIMO] systems
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Abstract
The present invention provides a kind of method and system of ascending multi-point collaboration, physical layer based on Serving cell and cooperation cell, cooperation cell and Serving cell generate respectively DMRS data and store, the data to being received on antenna carry out front-end processing, channel estimation, equilibrium treatment, solution transfer pre-coding, demodulation；In cooperation cell, by the data is activation after demodulation to Serving cell；In Serving cell, Combined Treatment is carried out when the data after cooperation cell demodulation is received before being reached in the predetermined default termination time.The treatment load of cooperation cell so can be not only reduced, handling process, transmission data are few, reduce propagation delay time, while significant Combined Treatment gain can be obtained, be easy to improve the throughput of edge customer.
Description
Technical field
The present invention relates to multipoint cooperative CoMP (Coordinated Multi-point) technology in wireless communication field,
Implementation method that specifically related to a kind of 3G (Third Generation) Moblie Long Term Evolution enhancing (FDD LET-A) ascending multi-point collaboration is received and
System.
Background technology
LTE technologies (quasi- 4G) have obtained major main flow equipment vendors of the world and operator with advantages such as its two-forty, low time delays
Favor.
In order to ensure the permanent vitality of LTE technologies and its follow-up advanced technology, and also to meet 4G mobile communication
The demand higher of standard criterion IMT-A and future communications, 3GPP has started the smooth evolution LTE-A (LTE- of LTE in real time
Advanced) technical research.
The end of the year 2008, CoMP (Coordinated multiple point transmission and
Reception) --- multipoint cooperative technology is introduced into LTE-A and discusses and start collection technology motion.CoMP technologies are recognized
To be the effective means for improving and improving community marginal user performance.
Reception for up CoMP realizes that existing method is most of using passback antenna opening data, or passback
Data after solution rate-matched, for former, transmitted data amount is big, and time delay is big, and Serving cell needs treatment double
Data volume, this process performance to Serving cell physical layer proposes requirement very high.For latter, cooperation cell physical layer
Needs undertake the data processing of a big chunk multipoint cooperative procession terminal (CoMP UE), and also need to generate disturbing for CoMP UE
Code table, safeguards the hybrid automatic repeat-request HARQ processes of CoMP UE, the treatment of cooperation cell is more complicated.
The content of the invention
The purpose of the present invention is to propose to a kind of the method and system realized are received suitable for ascending multi-point collaboration.
Technical scheme includes a kind of method that ascending multi-point collaboration is received, based on Serving cell and cooperation cell
Physical layer follow the steps below,
Step 1, generates DMRS data and stores in cooperation cell, generates DMRS data in Serving cell and stores, DMRS
It is demodulation reference signal；
Step 2, in Serving cell and cooperation cell, the data respectively to being received on antenna carry out front-end processing；
Step 3, the DMRS data and front-end processing result generated with Serving cell in Serving cell carry out channel estimation,
The DMRS data and front-end processing result that cooperation cell is generated with cooperation cell carry out channel estimation,
Step 4, balanced place is carried out in Serving cell and cooperation cell with front-end processing result and channel estimation results respectively
Reason；
Step 5, solution transfer pre-coding is carried out in Serving cell and cooperation cell to equilibrium result respectively；
Data after solution transfer pre-coding are demodulated by step 6 respectively in Serving cell and cooperation cell；
Step 7, in cooperation cell, by the data is activation after demodulation to Serving cell；In Serving cell, when predetermined pre-
If the termination time reach before receive cooperation cell demodulation after data when carry out Combined Treatment, implementation is as follows,
In cooperation cell, to interpolation data after addition message header before the data start after demodulation and data end position
Behind end mark position, Serving cell physical layer is sent to, data is activation sends to Serving cell after completing and interrupts；
In Serving cell, when receiving the interruption from cooperation cell, judged according to the end-of-data mark position for receiving
Whether data needed for obtaining Combined Treatment, are then to update to receive data mode flag bit for data ready, otherwise update and connect
It is that data are offhand ready to receive data mode flag bit；
In Serving cell, according to predetermined default termination set of time corresponding waiting Interruption, when reception data
When waiting Interruption to arrive, data receiving state sign position is checked, if being still initial value, update and receive data mode mark
Will position is loss of data；
In Serving cell, Combined Treatment is carried out when data receiving state sign position display data is ready, when fruit number
Combined Treatment is not carried out then during according to reception state sign position display data loss or offhand ready data, is directly entered follow-up
Treatment.
And, in step 1, cooperation cell generates DMRS data in physical layer according to high-rise cell re-configuration information.
And, in step 7, in cooperation cell, during by the data is activation after demodulation to Serving cell, the data after demodulation
It is divided into 4 parts to be transmitted, interrupts and sent according to after being transmitted in last number.
And, in step 7, Combined Treatment is by the way of soft bit saturation adds.
And, in step 7, when receiving the interruption from cooperation cell, sentenced according to the end-of-data mark position for receiving
It is disconnected whether obtain Combined Treatment needed for data, be then to update that to receive data mode flag bit be data ready, implementation
Comprise the following steps,
Step a, takes out the message header information for receiving data；
Step b, according to message header information, takes out end-of-data mark symbol A '；
Step c, judges whether Serving cell is next self tuning equal to what is received with cooperation cell both sides agreement end mark symbol A
Make the end-of-data mark symbol A ' of cell, be then to accord with the end mark at end mark position resetting, into step d, otherwise enter
Enter step e；
Step d, judge data whether be scheduling instance required for the CoMP UE that Serving cell is now being waited number
According to, be update the data reception state sign position be data ready, otherwise into step e；
Step e, it is that data are offhand ready to update the data reception state sign position.
The present invention correspondingly provides the system that a kind of ascending multi-point collaboration is received, in the physics of Serving cell and cooperation cell
Layer is set with lower module,
The cooperation cell DMRS generation modules of cooperation cell are arranged on, for generating DMRS data in cooperation cell and depositing
Storage；This cell UE DMRS generation modules of Serving cell are arranged on, DMRS data are generated in Serving cell and is stored, DMRS is
Demodulation reference signal；
The front end processing block of Serving cell and cooperation cell is arranged on, for respectively in Serving cell and cooperation cell pair
The data received on antenna carry out front-end processing；
The channel estimation module of Serving cell is arranged on, for the DMRS data and front-end processing knot that are generated with Serving cell
Fruit carries out channel estimation；The channel estimation module of cooperation cell is arranged on, for the DMRS data that are generated with cooperation cell and preceding
End result carries out channel estimation,
The channel equalization module of Serving cell and cooperation cell is arranged on, for being used in Serving cell and cooperation cell respectively
Front-end processing result and channel estimation results carry out equilibrium treatment；
The solution transfer pre-coding module of Serving cell and cooperation cell is arranged on, for small in Serving cell and cooperation respectively
Area carries out solution transfer pre-coding to equilibrium result respectively；
The demodulation module of Serving cell and cooperation cell is arranged on, for distinguishing in Serving cell and cooperation cell respectively
Data after solution transfer pre-coding are demodulated；
The cooperation cell CoMP data transmission blocks of cooperation cell are arranged on, before to the data start after demodulation
After addition message header and data end position behind interpolation data end mark position, Serving cell physical layer, data is activation are sent to
Sent to Serving cell after completion and interrupted；
The reception data outage response processing module of Serving cell is arranged on, when receiving the interruption from cooperation cell,
According to receive end-of-data mark position judge whether to obtain Combined Treatment needed for data, be then update receive data mode mark
Will position is data ready, otherwise updates and receives data mode flag bit for data are offhand ready；
The wait Interruption respond module of Serving cell is arranged on, for according to predetermined default termination set of time
Corresponding waiting Interruption, when the wait Interruption for receiving data arrives, checks data receiving state sign position, if still
It is initial value, then updates and receive data mode flag bit for loss of data；
The Serving cell Combined Treatment module of Serving cell is arranged on, for indicating position display data when data receiving state
Combined Treatment is carried out when ready, when fruit data receiving state sign position display data is lost or data are offhand ready
Combined Treatment is not carried out then, is directly entered subsequent treatment.
And, cooperation cell DMRS generation modules generate DMRS data according to high-rise cell re-configuration information.
And, cooperation cell CoMP data transmission blocks by the data is activation after demodulation to Serving cell when, after demodulation
Data be divided into 4 parts and be transmitted, interrupt and sent according to after being transmitted in last number.
And, Serving cell Combined Treatment module carries out Combined Treatment by the way of soft bit saturation adds.
And, when reception data outage response processing module receives the interruption from cooperation cell, according to what is received
End-of-data mark position judge whether to obtain Combined Treatment needed for data, be then to update that to receive data mode flag bit be accurate data
Standby ready, implementation is comprised the following steps,
Step a, takes out the message header information for receiving data；
Step b, according to message header information, takes out end-of-data mark symbol A '；
Step c, judges whether Serving cell is next self tuning equal to what is received with cooperation cell both sides agreement end mark symbol A
Make the end-of-data mark symbol A ' of cell, be then to accord with the end mark at end mark position resetting, into step d, otherwise enter
Enter step e；
Step d, judge data whether be scheduling instance required for the CoMP UE that Serving cell is now being waited number
According to, be update the data reception state sign position be data ready, otherwise into step e；
Step e, it is that data are offhand ready to update the data reception state sign position.
The present invention according to ascending multi-point collaboration it is transparent to UE the characteristics of, by between base station share scheduling and data message, come
The demodulation accuracy of upstream data is lifted, the purpose of lifting edge customer throughput is reached.Serving cell and cooperation cell are simultaneously
The upward signal that UE sends is received, high level carries out cooperative scheduling, cooperation cell physics to Serving cell and cooperation cell physical layer
Layer by sending the data to Serving cell after part treatment, Serving cell physical layer receive data and with the data of this cell
Combined Treatment is carried out, afterwards into follow-up other handling processes.The treatment load of cooperation cell so can be not only reduced, is simplified
Handling process, transmission data are few, reduce propagation delay time, while significant Combined Treatment gain can be obtained, can effectively carry
Rise the throughput of edge customer.The present invention is also proposed to the data after transmission demodulation by the way that completion is transmitted several times, in finally sending
Disconnected, so total transmitted data amount and single transmission data volume is reduced, and transmission can make data processing and data by several times
Transmission reaches parallel, and cooperation cell is without safeguarding the HARQ processes and generation scrambler table of CoMP UE in addition, while Serving cell is only
A simple saturation need to be done to the data that receive to add, algorithm is simple, and amount of calculation is small, further increase transmission effect
Rate, simplifies handling process, and can also obtain significant Combined Treatment gain.
Brief description of the drawings
Fig. 1 is received in physical layer process flow chart for the ascending multi-point collaboration of the embodiment of the present invention；
Fig. 2 receives Serving cell interrupt response handling process for the ascending multi-point collaboration of the embodiment of the present invention；
Fig. 3 is the ascending multi-point collaboration reception system block diagram of the embodiment of the present invention.
Specific embodiment
The present invention is selected after the demodulation, with reference to reality return data using the flow and feature of data processing in LTE
The present invention is described in further detail to apply example and accompanying drawing, but embodiments of the present invention not limited to this.
Embodiment uses Intra-eNB modes, the related business datum of each minizone of inside of base station interaction CoMP treatment and
Control information, Fig. 1 gives ascending multi-point collaboration of the invention and receives implementation method embodiment flow chart, Serving cell and each association
Make cell (such as cooperation cell A, B in figure) interaction, the physical layer in Serving cell and cooperation cell realizes below scheme：
Step 1, generates DMRS data and stores in cooperation cell, generates DMRS data in Serving cell and stores, DMRS
It is demodulation reference signal；
Step 2, in Serving cell and cooperation cell, the data respectively to being received on antenna carry out front-end processing；
Step 3, the DMRS data and front-end processing result generated with Serving cell in Serving cell carry out channel estimation,
The DMRS data and front-end processing result that cooperation cell is generated with cooperation cell carry out channel estimation,
Step 4, balanced place is carried out in Serving cell and cooperation cell with front-end processing result and channel estimation results respectively
Reason；
Step 5, solution transfer pre-coding is carried out in Serving cell and cooperation cell to equilibrium result respectively；
Data after solution transfer pre-coding are demodulated by step 6 respectively in Serving cell and cooperation cell；
Step 7, in cooperation cell, by the data is activation after demodulation to Serving cell；In Serving cell, when predetermined pre-
If the termination time reach before receive cooperation cell demodulation after data when carry out Combined Treatment, flow may be designed as, and sentence first
Whether the data that disconnected number carries out Combined Treatment reach, and are, carry out Combined Treatment, otherwise judge that the data for carrying out Combined Treatment are
No loss or offhand ready, otherwise returns to whether the data for continuing to judge to carry out Combined Treatment reach, and is to be directly entered
Subsequent treatment.
Present invention further propose that realizing that Combined Treatment judges using flag bit and Interrupt Processing Model, real-time update is received
Data mode indicates place value, is easy to the state of tracking data, the place of decision problem.
Implementation is as follows,
In cooperation cell, to interpolation data after addition message header before the data start after demodulation and data end position
Behind end mark position, Serving cell physical layer is sent to, data is activation sends to Serving cell after completing and interrupts；
In Serving cell, when receiving the interruption from cooperation cell, judged according to the end-of-data mark position for receiving
Whether data needed for obtaining Combined Treatment, are then to update to receive data mode flag bit for data ready, otherwise update and connect
It is that data are offhand ready to receive data mode flag bit；
In Serving cell, according to predetermined default termination set of time corresponding waiting Interruption, when reception data
When waiting Interruption to arrive, data receiving state sign position is checked, if being still initial value, update and receive data mode mark
Will position is loss of data；
In Serving cell, Combined Treatment is carried out when data receiving state sign position display data is ready, when fruit number
During according to reception state sign position display data loss or offhand ready data, then Combined Treatment is not carried out, after being directly entered
Continuous treatment.
Present invention further propose that：
Physical layer cooperation cell is configured by high-rise cell re-configuration information in step 1, if adjusted by prior art
Degree message in carry out configuration need each scheduling instance will issue cooperation cell information, so then avoid cooperation cell information
Repetition configuration.
Data after step 7, demodulation are divided into 4 parts and are transmitted, and interrupt and are sent out according to after being transmitted in last number
Send, data processing is reached parallel purpose with transmission, reduce propagation delay time, interrupt and send once, reduce and interrupt
Loss.PUSCH data have 12 symbols (being 11 when having SRS) in LTE system, and this 12 symbols are divided into 4 treatment
3 data of symbol of single treatment, this 4 groups for the treatment of can just be carried out parallel in multiple nucleus system, (such as process symbol 0 of core 0,
1,2 data, the data ... of the process symbol 4,5,6 of core 1, when data are sent, core 3 is carrying out last several symbol datas to core 0
Treatment), thus reach the parallel processing of transmission and data.Other each core processed after data by symbol arrangement
Order is put into the order caching of agreement.Before it there are the data of symbol 0,1,2, message is added before the data start of symbol 0
Head, the interpolation data end mark position behind the ED position of symbol 13.After 4 groups of data have all sent, send and interrupt (hair
Judge whether treatment to last symbol before sending interruption), when now Serving cell response is interrupted, it is ensured that cooperation cell
Data are all to have sent.If send interrupted before transmitting data, have no idea to ensure that the whole of data is distributed.And
4 transmissions of data point, transmission data length shortens, and propagation delay time diminishes.Only hair is once interrupted, and reduces the response time of interruption
Number, if repeatedly send interrupted, because these interrupt priority levels are identical, when two interrupt reaches simultaneously, easily causes interruption
Lose.
During specific implementation, specific processing mode can be voluntarily specified by those skilled in the art in the Combined Treatment of step 7.Build
View can obtain the gain that similar HARQ merges by the way of soft bit saturation adds.
Referring to Fig. 3, the present invention correspondingly provides the system that a kind of ascending multi-point collaboration is received, small in Serving cell and cooperation
The physical layer in area is set with lower module,
The cooperation cell DMRS generation modules of cooperation cell are arranged on, for generating DMRS data in cooperation cell and depositing
Storage；This cell UE DMRS generation modules of Serving cell are arranged on, DMRS data are generated in Serving cell and is stored, DMRS is
Demodulation reference signal；
The front end processing block of Serving cell and cooperation cell is arranged on, for respectively in Serving cell and cooperation cell pair
The data received on antenna carry out front-end processing；
The channel estimation module of Serving cell is arranged on, for the DMRS data and front-end processing knot that are generated with Serving cell
Fruit carries out channel estimation；The channel estimation module of cooperation cell is arranged on, for the DMRS data that are generated with cooperation cell and preceding
End result carries out channel estimation,
The channel equalization module of Serving cell and cooperation cell is arranged on, for being used in Serving cell and cooperation cell respectively
Front-end processing result and channel estimation results carry out equilibrium treatment；
The solution transfer pre-coding module of Serving cell and cooperation cell is arranged on, for small in Serving cell and cooperation respectively
Area carries out solution transfer pre-coding to equilibrium result respectively；
The demodulation module of Serving cell and cooperation cell is arranged on, for distinguishing in Serving cell and cooperation cell respectively
Data after solution transfer pre-coding are demodulated；
The cooperation cell CoMP data transmission blocks of cooperation cell are arranged on, before to the data start after demodulation
After addition message header and data end position behind interpolation data end mark position, Serving cell physical layer, data is activation are sent to
Sent to Serving cell after completion and interrupted；
The reception data outage response processing module of Serving cell is arranged on, when receiving the interruption from cooperation cell,
According to receive end-of-data mark position judge whether to obtain Combined Treatment needed for data, be then update receive data mode mark
Will position is data ready；
The wait Interruption respond module of Serving cell is arranged on, for according to predetermined default termination set of time
Corresponding waiting Interruption, when the wait Interruption for receiving data arrives, checks data receiving state sign position, if not
It is data ready, then updates and receive data mode flag bit for loss of data；
The Serving cell Combined Treatment module of Serving cell is arranged on, for indicating position display data when data receiving state
Combined Treatment is carried out when ready, when fruit data receiving state sign position display data lose or data it is offhand it is ready then
Combined Treatment is not carried out, subsequent treatment is directly entered.
Module implements consistent with each step, and each step to the present embodiment is described in detail below：
Step 1：After cell is successfully established, in cooperation cell, cooperation cell DMRS generation modules M1 receives the small of high level
Area's reconfiguration message and user configuration information, obtain the cell information of potential Serving cell, and potential clothes are generated according to these information
Business cell PUSCH demodulation reference signals DMRS is simultaneously stored, for follow-up channel estimation.Serving cell is receiving this cell
Community configured information after, the DMRS data of this cell UE are generated according to configuration information this cell UE DMRS generation modules M11,
For the subsequent channel estimation treatment of this cell UE.The UE of this cell is comprising the UE (CoMP) that carry out multipoint cooperative procession and not
Carry out the UE of CoMP.
Step 2：The data received on Serving cell and the antenna of cooperation cell every, front end processing block M2 is with each height
Frame carries out Cyclic Prefix successively for unit, and 7.5KHz determines frequency deviation compensation and discrete Fourier transform to frequency domain, by resource
Demapping obtains the data of subsequent treatment.
Step 3：The DMRS numbers generated with this cell UE DMRS generation modules M11 respectively in Serving cell and cooperation cell
According to the output data with cooperation cell DMRS generation modules M1 channel estimation is sent into respective front ends processing module M2 output datas
Module M3, obtains the channel coefficients of each symbol；In cooperation cell, carried out using the DMRS of Serving cell CoMP UE in step 3
Channel estimation, can so save the process time when data arrive to data.
Step 4：Serving cell and cooperation cell are respectively with the output number of front end processing block M2 and channel estimation module M3
According to equilibrium treatment is carried out, the output of channel equalization module M4 is obtained
Step 5：Serving cell and cooperation cell by the data feeding solution transfer pre-coding module M5 after equilibrium, are carried out respectively
Solution transfer pre-coding is IDFT treatment, obtains the data after IDFT.
Step 6：Serving cell and cooperation cell will solve the data after transfer pre-coding and send into demodulation module M6 respectively, obtain
Output data after demodulation.
Step 7：Realize that Combined Treatment judges using flag bit and Interrupt Processing Model：
Data after cooperation cell, demodulation enter cooperation cell CoMP data transmission blocks M7 after to demodulation
Being added before data start after add end mark position after message header and data end position, by the data after demodulation by string
Row high speed I/O port (SRIO:Serial RapidIO) Serving cell is sent to, during data is activation sends after completing to Serving cell
It is disconnected.
In Serving cell, when receiving the interruption from cooperation cell, receive data outage response processing module M8 and update
Data mode flag bit is received, Serving cell receives interrupt processing flow referring to flow chart 2：
Step a, takes out the message header information for receiving data；
Step b, according to message header information, takes out end-of-data mark symbol A '；
Step c, judges whether Serving cell is next self tuning equal to what is received with cooperation cell both sides agreement end mark symbol A
Make cell end-of-data mark symbol, i.e., whether A=A ', be then by end mark position place end mark symbol clearing, into step
Rapid d, otherwise into step e；A is a character of the unification that Serving cell and cooperation cell consult, for representing data
End mark, receives this character representation data and completely receives；End mark position is the position of default storage end mark symbol；
Step d, judge data whether be scheduling instance required for the CoMP UE that Serving cell is now being waited number
According to, that is, judge data whether be current ue present sub-frames data, be update the data reception state sign position be data prepare
It is ready, otherwise into step e；
Step e, it is that data are offhand ready to update the data reception state sign position.
In Serving cell, when the wait Interruption for receiving data arrives, Interruption respond module M10 is waited to check
Data receiving state indicates position, if being still initial value, it is loss of data to update the data reception state sign position.
In Serving cell, Serving cell Combined Treatment module M9 inquiry data receiving state signs position, if data receiver
State sign position display data is ready, carries out Combined Treatment, then carries out subsequent treatment；If data receiving state mark
Show that a display data is lost or data are offhand ready, do not carry out Combined Treatment, be directly used for this cell data follow-up
The common subsequent treatments such as in treatment, i.e., descrambling, channel are deinterleaved, HARQ merges, UCI decodings, TVPE decodings.
It is of the invention to there is larger difference with existing invention, the transparency to UE is received using up CoMP, adjusted using joint
The mode of degree, the data after cooperation cell is demodulated are transferred to Serving cell Combined Treatment, and Combined Treatment is full using soft bit
With the mode for adding, gain is obtained, improve the throughput of edge customer.It is of the invention compared with existing invention, it is also proposed that in demodulation
Data are transmitted several times afterwards, and data bit soft bit data volume is few after demodulation, data transmit several times make use of data is activation with
The characteristics of data processing is parallel, can further reduce data awaiting transmission time delay.Combined Treatment is carried out after demodulation in addition, letter
Change the handling process of cooperation cell and service cell physical layer, it is easy to accomplish.Combined Treatment algorithm is added using soft bit saturation
Mode, algorithm is simple, it is easy to accomplish while amount of calculation is small.The gain that similar HARQ merges can be obtained simultaneously.The present invention exists
It is of the invention if the time delay of transmission data can guarantee that the sequential of whole system in the case of ensureing that multiple cell sequential is consistent
Content goes for the multipoint cooperative in station and between station.
Examples detailed above is not limited for the present invention preferably implementation method, but embodiments of the present invention by above-described embodiment
System, it is other it is any do not run counter to Spirit Essence of the invention and the change, modification, replacement made under principle, combine, simplification all should
It is equivalent substitute mode, is included within protection scope of the present invention.
Claims (8)
1. a kind of method that ascending multi-point collaboration is received, it is characterised in that：Physical layer based on Serving cell and cooperation cell is entered
Row following steps,
Step 1, generates DMRS data and stores in cooperation cell, generates DMRS data in Serving cell and stores, and DMRS is solution
Call reference signal；
Step 2, in Serving cell and cooperation cell, the data respectively to being received on antenna carry out front-end processing；
Step 3, the DMRS data and front-end processing result generated with Serving cell in Serving cell carry out channel estimation, in cooperation
The DMRS data and front-end processing result that cell is generated with cooperation cell carry out channel estimation,
Step 4, equilibrium treatment is carried out in Serving cell and cooperation cell with front-end processing result and channel estimation results respectively；
Step 5, solution transfer pre-coding is carried out in Serving cell and cooperation cell to equilibrium result respectively；
Data after solution transfer pre-coding are demodulated by step 6 respectively in Serving cell and cooperation cell；
Step 7, in cooperation cell, by the data is activation after demodulation to Serving cell；In Serving cell, when predetermined default
Combined Treatment is carried out when the data after the demodulation of cooperation cell are received before the arrival of termination time, implementation is as follows,
In cooperation cell, interpolation data after addition message header before the data start after demodulation and data end position is terminated
After flag bit, Serving cell physical layer is sent to, data is activation sends to Serving cell after completing and interrupts；
In Serving cell, when receiving the interruption from cooperation cell, judged whether according to the end-of-data mark position for receiving
Data needed for obtaining Combined Treatment, are then to update to receive data mode flag bit for data ready, otherwise update and receive number
It is that data are offhand ready according to state flag bit；
Implementation is comprised the following steps,
Step a, takes out the message header information for receiving data；
Step b, according to message header information, takes out end-of-data mark symbol A '；
Step c, judges whether Serving cell is small from cooperating equal to what is received with cooperation cell both sides agreement end mark symbol A
The end-of-data mark symbol A ' in area, is then to accord with the end mark at end mark position resetting, and into step d, otherwise enters step
Rapid e；
Step d, judge data whether be scheduling instance required for the CoMP UE that Serving cell is now being waited data,
It is to update the data reception state to indicate position for data ready, otherwise into step e；
Step e, it is that data are offhand ready to update the data reception state sign position；
In Serving cell, according to predetermined default termination set of time corresponding waiting Interruption, when the wait for receiving data
When Interruption arrives, data receiving state sign position is checked, if being still initial value, update and receive data mode flag bit
It is loss of data；
In Serving cell, Combined Treatment is carried out when data receiving state sign position display data is ready, when fruit data connect
Combined Treatment is not carried out then when receipts state sign position display data is lost or data are offhand ready, is directly entered follow-up place
Reason.
2. the method that ascending multi-point collaboration is received according to claim 1, it is characterised in that：In step 1, cooperation cell is in thing
Reason layer generates DMRS data according to high-rise cell re-configuration information.
3. the method that ascending multi-point collaboration is received according to claim 1, it is characterised in that：In step 7, in cooperation cell,
During by the data is activation after demodulation to Serving cell, the data after demodulation are divided into 4 parts and are transmitted, and interrupt in last number
Sent according to after being transmitted.
4. the method that ascending multi-point collaboration is received according to claim 1, it is characterised in that：In step 7, Combined Treatment is used
The mode that soft bit saturation adds.
5. the system that a kind of ascending multi-point collaboration is received, it is characterised in that：Physical layer in Serving cell and cooperation cell is set
With lower module,
The cooperation cell DMRS generation modules of cooperation cell are arranged on, for generating DMRS data in cooperation cell and storing；If
This cell UE DMRS generation modules in Serving cell are put, DMRS data is generated in Serving cell and is stored, DMRS is called for solution
Reference signal；
The front end processing block of Serving cell and cooperation cell is arranged on, for respectively in Serving cell and cooperation cell to antenna
On the data that receive carry out front-end processing；
The channel estimation module of Serving cell is arranged on, the DMRS data and front-end processing result for being generated with Serving cell are entered
Row channel estimation；The channel estimation module of cooperation cell is arranged on, at the DMRS data generated with cooperation cell and front end
Reason result carries out channel estimation,
The channel equalization module of Serving cell and cooperation cell is arranged on, for respectively in Serving cell and cooperation cell front end
Result and channel estimation results carry out equilibrium treatment；
The solution transfer pre-coding module of Serving cell and cooperation cell is arranged on, for respectively in Serving cell and cooperation cell point
It is other that solution transfer pre-coding is carried out to equilibrium result；
Be arranged on the demodulation module of Serving cell and cooperation cell, for respectively Serving cell and cooperation cell respectively to solution
Data after transfer pre-coding are demodulated；
The cooperation cell CoMP data transmission blocks of cooperation cell are arranged on, for being added before the data start after demodulation
After message header and data end position behind interpolation data end mark position, Serving cell physical layer is sent to, data is activation is completed
Sent to Serving cell afterwards and interrupted；
The reception data outage response processing module of Serving cell is arranged on, when receiving the interruption from cooperation cell, according to
Receive end-of-data mark position judge whether to obtain Combined Treatment needed for data, be then update receive data mode flag bit
It is data ready, otherwise updates and receive data mode flag bit for data are offhand ready；
Implementation is comprised the following steps,
Step a, takes out the message header information for receiving data；
Step b, according to message header information, takes out end-of-data mark symbol A '；
Step c, judges whether Serving cell is small from cooperating equal to what is received with cooperation cell both sides agreement end mark symbol A
The end-of-data mark symbol A ' in area, is then to accord with the end mark at end mark position resetting, and into step d, otherwise enters step
Rapid e；
Step d, judge data whether be scheduling instance required for the CoMP UE that Serving cell is now being waited data,
It is to update the data reception state to indicate position for data ready, otherwise into step e；
Step e, it is that data are offhand ready to update the data reception state sign position；
The wait Interruption respond module of Serving cell is arranged on, for corresponding according to predetermined default termination set of time
Interruption is waited, when the wait Interruption for receiving data arrives, data receiving state sign position is checked, if being still first
Initial value, then update and receive data mode flag bit for loss of data；
The Serving cell Combined Treatment module of Serving cell is arranged on, for preparing when data receiving state sign position display data
Combined Treatment is carried out when ready, when fruit data receiving state sign position display data is lost or data are offhand ready, then
Combined Treatment is not carried out, subsequent treatment is directly entered.
6. the system that ascending multi-point collaboration is received according to claim 5, it is characterised in that：Cooperation cell DMRS generation modules
DMRS data are generated according to high-rise cell re-configuration information.
7. the system that ascending multi-point collaboration is received according to claim 5, it is characterised in that：Cooperation cell CoMP data is activations
Module by the data is activation after demodulation to Serving cell when, the data after demodulation are divided into 4 parts and are transmitted, interrupt at last
Number sends according to after being transmitted.
8. the system that ascending multi-point collaboration is received according to claim 5, it is characterised in that：Serving cell Combined Treatment module
Combined Treatment is carried out by the way of soft bit saturation adds.
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| CN102065557A (en) * | 2010-12-31 | 2011-05-18 | 中兴通讯股份有限公司 | Method and system for sending sounding reference signal (SRS) used in coordinated multi-point (CoMP) transmission system |
| CN102932092A (en) * | 2011-08-09 | 2013-02-13 | 中兴通讯股份有限公司 | Multipoint cooperation-based method, device and system for receiving control information |
| CN102948085A (en) * | 2010-06-18 | 2013-02-27 | 日本电气株式会社 | Precoding techniques for downlink coordinated multipoint transmission in radio communications system |
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| CN102948085A (en) * | 2010-06-18 | 2013-02-27 | 日本电气株式会社 | Precoding techniques for downlink coordinated multipoint transmission in radio communications system |
| CN102065557A (en) * | 2010-12-31 | 2011-05-18 | 中兴通讯股份有限公司 | Method and system for sending sounding reference signal (SRS) used in coordinated multi-point (CoMP) transmission system |
| CN102932092A (en) * | 2011-08-09 | 2013-02-13 | 中兴通讯股份有限公司 | Multipoint cooperation-based method, device and system for receiving control information |
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