CN102215182B - Pilot and data transmission and reception processing method and equipment - Google Patents
Pilot and data transmission and reception processing method and equipment Download PDFInfo
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- CN102215182B CN102215182B CN201010140775.0A CN201010140775A CN102215182B CN 102215182 B CN102215182 B CN 102215182B CN 201010140775 A CN201010140775 A CN 201010140775A CN 102215182 B CN102215182 B CN 102215182B
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Abstract
The invention discloses a pilot and data transmission processing method, a pilot and data reception processing method and equipment. In pilot and data transmission processing, a base station determines the location of a resource element not transmitting a data signal according to the channel state information reference signal location of a neighbor cell; and the base station does not transmit the data signal at the location of the resource element, and transmits the data signals at other locations according to preset mapping rules. In pilot and data reception processing, the user equipment does not demodulate the data signal at the location of the resource element not transmitting the data signal, and determines one or combinations of the channel information of the neighbor cell, the channel information of a local cell and the interference of the neighbor cell according to the received signal. By the method and the equipment, not only errors in the channel information measurement of the local channel but also the interference measurement inaccuracy of the neighbor cell can be avoided.
Description
Technical field
The present invention relates to wireless communication technology, particularly the receiving and transmitting processing method of a kind of pilot tone and data and equipment.
Background technology
Multiple cell is at CSI RS (channel state information reference signal, channel state information reference signals) position send data time, neighbor cell data also send simultaneously, stagger in CSI RS position between adjacent cell normally frequency domain, but, the deficiencies in the prior art are: if when the data-signal of the CSI RS signal of this community and adjacent cell collides, this Cell Channel Information can be caused to measure and to occur error, if adjacent cell relevant position does not send data-signal, then there will be the interferometry of adjacent cell inaccurate.
Summary of the invention
Technical problem solved by the invention there are provided receiving and transmitting processing method and the equipment of a kind of pilot tone and data.
Provide a kind of transmission processing method of pilot tone and data in the embodiment of the present invention, comprise the steps:
The CSI RS signal location of adjacent cell is determined in base station;
The RE position not sending data-signal is determined according to the CSI RS signal location of adjacent cell in base station;
Base station does not send data-signal on described RE position, and other positions send according to predetermined mapping ruler;
The RE position not sending data-signal is determined according to adjacent cell CSI RS signal location in base station, comprising:
For the Physical Resource Block PRB that transmission data-signal takies, when the data RE position of this PRB is adjacent cell CSI RS signal location, determine not send data-signal on RE position; Or, for the subframe sending CSI RS signal, when the RE position of transmission data-signal is adjacent cell CSI RS signal location, determine not send data-signal on RE position;
For the PRB that transmission data-signal takies, when this RE position does not send data-signal, the Physical Resource Block index PRB index on this RE position generates according to pre-set criteria; The pre-set criteria of PRB index is the PRB index be spacedly distributed in the system bandwidth that downstream signal sends; For the subframe sending CSIR S signal, when the RE position of transmission data-signal is adjacent cell CSI RS signal location, determine not send data-signal on RE position, the index of this CSI RS subframe generates according to pre-set criteria; The index pre-set criteria of CSI RS subframe is send in subframe at all CSI RS to select equally spaced CSI RS subframe.
Provide the receiving handling method of a kind of pilot tone and data in the embodiment of the present invention, comprise the steps:
UE determines the RE position not sending data-signal;
UE not demodulated data signal on described RE position;
UE is according to one of the channel information, this Cell Channel Information, adjacent cell interference of the signal determination adjacent cell received or its combination;
If each community does not send the PRB index of the RE position of data-signal or CSI RS, to send subframe be identical, UE adopt the mode of agreement to know the PRB index of this position or CSI RS sends subframe.
Provide a kind of base station in the embodiment of the present invention, comprising:
Position module, for determining the CSI RS signal location of adjacent cell;
Module is set, determines for the CSI RS signal location according to adjacent cell the RE position not sending data-signal;
Sending module, for not sending data-signal on described RE position, other positions send according to predetermined mapping ruler;
Module is set and comprises the first setting unit and/or the second setting unit, wherein:
First setting unit, for the PRB taken for transmission data-signal, when the data RE position of this PRB is adjacent cell CSI RS signal location, determines not send data-signal on RE position;
Second setting unit, for for the subframe sending CSI RS signal, when the RE position of transmission data-signal is adjacent cell CSI RS signal location, determines not send data-signal on RE position;
First setting unit is further used for the PRB taken for transmission data-signal, and when this RE position does not send data-signal, the PRB index on this RE position generates according to pre-set criteria; First setting unit is further used for adopting the pre-set criteria of PRB index to be the PRB index be spacedly distributed in the system bandwidth that downstream signal sends;
Second setting unit is further used for the subframe for sending CSI RS signal, when the RE position of transmission data-signal is adjacent cell CSI RS signal location, determine not send data-signal on RE position, the index of this CSI RS subframe generates according to pre-set criteria; Second setting unit is further used for adopting the index pre-set criteria of CSI RS subframe to be send in subframe at all CSI RS to select equally spaced CSI RS subframe.
Provide a kind of subscriber equipment in the embodiment of the present invention, comprising:
Position module, for determining the RE position not sending data-signal;
Demodulation module, for not demodulated data signal on described RE position;
Determination module, for one of the channel information according to the signal determination adjacent cell received, this Cell Channel Information, adjacent cell interference or its combination;
Position module comprises primary importance unit and/or second place unit, wherein:
Primary importance unit, for determining according to PRB index the RE position not sending data-signal;
Second place unit, determines for sending subframe according to CSI RS the RE position not sending data-signal;
Position module is further used for when not sending the RE position of data-signal, if each community does not send the PRB index of the RE position of data-signal or CSI RS, to send subframe be identical, and the PRB index of this position or CSI RS sends subframe to adopt the mode of agreement to know.
accompanying drawing explanation
Beneficial effect of the present invention is as follows:
In the pilot tone provided in embodiments of the present invention and the transmission processing of data, the RE position not sending data-signal is determined according to the CSI RS signal location of adjacent cell in base station, and data-signal is not sent on described RE position, other positions send according to predetermined mapping ruler.
In the reception process of the pilot tone provided in embodiments of the present invention and data, UE not demodulated data signal on the RE position not sending data-signal, and according to one of the channel information, this Cell Channel Information, adjacent cell interference of the signal determination adjacent cell received or its combination.
Because the present invention is in implementation process, between different districts, whether the data RE of CSI RS position sends data and can configure, so can determine whether sending data according to the CSI RS signal location of adjacent cell, part neighbor cell data RE is made not send data like this, part neighbor cell data RE sends data, thus make to provide more accurate channel information to estimate on the RE not sending data, and the interference of adjacent cell data-signal can be measured on the RE sending data, thus effectively can solve presence of intercell interference measurement and this two problems of channel information measurement, both this Cell Channel Information can not have been caused to measure and to have occurred error, also there will not be the interferometry of adjacent cell inaccurate.
Fig. 1 is that the data of Serving cell in the embodiment of the present invention and pilot tone map schematic diagram;
Fig. 2 is that the data of neighbor cell in the embodiment of the present invention and pilot tone map schematic diagram;
embodiment
Fig. 3 is the transmission processing method implementing procedure schematic diagram of pilot tone and data in the embodiment of the present invention;
Fig. 4 is the receiving handling method implementing procedure schematic diagram of pilot tone and data in the embodiment of the present invention;
Fig. 5 is architecture of base station schematic diagram in the embodiment of the present invention;
Fig. 6 is user device architecture schematic diagram in the embodiment of the present invention.
Inventor notices in invention process:
At LTE-A (Long Term Evolution-Advance, long-term evolution upgrading) in system, down-bound pilot frequency signal is divided into CSI RS signal and DMRS (demodulation reference signal, demodulated reference signal) signal, CSI RS signal is used for measuring descending channel information, and DMRS is used for demodulating data.When adjacent multiple cell sends CSI RS signal, usual employing TDM/FDM (Time Division Multiplexing/Frequency Division Mutiplexing, time division multiplexing/frequency division multiplexing) etc. orthogonal manner, Ji Yige community CSI RS signal can not run into the CSI RS signal of adjacent cell, but the data-signal of meeting and adjacent cell collides, as UE (UserEquipment, subscriber equipment) when being in cell boarder, CSI RS signal can become more weak, and measuring this Cell Channel Information will exist error.Another scene is in multipoint cooperative COMP (Coordinated multi-point transmission/reception, cooperative multipoint transmission and reception) transmission.The multiple community of COMP technical support sends data to single UE simultaneously, to strengthen UE Received signal strength, thus improves the demodulation performance of UE.In COMP transmission, UE needs the signal measuring multiple community, and be all the UE of cell boarder usually, therefore in order to ensure the Measurement accuracy of multiple channel information, some companies propose data cell RE (the resource element of the CSI RS of neighbor cell, Resource Unit) place's data-signal should muting (silence), does not namely send data-signal.But, if do not send data-signal, the CSI RS signal of this community then can not experience the interference of adjacent cell data-signal, UE measures CQI (Channel Quality Indicator, channel quality indicates) will be inaccurate, because the interference of neighbor cell is normally the strongest, if CSI RS signal the data interferometry of adjacent cell out, can not have larger loss to systematic function.Another shortcoming that data-signal is muting is the decline of message transmission rate, and owing to being muting, data block available resource units reduces, and valid data transmission information reduces.
In existing technical scheme, mainly by CRS (Cell-specific reference signals, the exclusive pilot signal in community) interference of signal measurement neighbor cell, the defect of the method is CRS signal if be only distributed in control character region, then can not embody the interference of data area, because in multiple cell COMP transmits, likely use MBSFN (MBSFN Multicast Broadcast Single Frequency Network, Multicast Broadcast Single Frequency Network) subframe, now data area does not have CRS signal, control character region is only had to there is CRS signal.Fig. 1 is that the data of Serving cell and pilot tone map schematic diagram, Fig. 2 is that the data of neighbor cell and pilot tone map schematic diagram, as shown in the figure, in LTE/LTE-A system, control character is arranged in 3-4 symbol before subframe, OFDM (Orthogonal Frequency Division Multiplex, OFDM) symbol is below data area.In figure below, a subframe contains 14 symbols, 10th, the latticed grid of 11 row represents CSI RS signal, can see that the RE position of neighbor cell and Serving cell is that frequency domain staggers, 1-3 row are control character regions, the grid of black declivity shape is from left to right CRS signal RE, and the vertical line shape of the 6th, 7,13,14 and band shape, latticed RE position are DMRS RE, and other positions are available data RE.
Channel information and interference estimation method are described below:
Y
0=H
0p
0+ H
1s
1+ I+N
0, Y
0the signal that Shi Zhe community UE receives in CSI RS position, this community, H
1s
1be that the data-signal of neighbor cell in this position disturbs, I is the signal disturbing coming from other communities, N
0be noise, if data muting has been made in this position in neighbor cell, then there is no H
1s
1this; S representative data signal in formula, P represents pilot signal, and muting does not send out, and therefore there will not be H in Received signal strength
1s
1.
Y1=H
0s
0+ H
1p
1+ I+N
0, Y
1represent the signal that Serving cell UE receives in CSI RS position, neighbor cell, H
1p
1be the CSI RS signal of neighbor cell in this position, I is the signal disturbing coming from other communities, N
0be noise, if data muting has been made in this position in Serving cell, then there is no H
0s
0this.
As seen from the above analysis, if made muting to neighbor cell data RE, Serving cell CSIR S signal has not then been subject to the interference of data-signal, and the interference for adjacent cell cannot be measured, but the channel information measurement of Serving cell is more accurate; Same, if made muting to Serving cell data RE, adjacent cell CSI RS signal has not then been subject to the interference of data-signal, and the channel information for adjacent cell is relatively more accurate, but adjacent cell is unable to estimate Serving cell and is measured data-signal interference.
Based on this, provide the transmission and reception processing scheme of a kind of multiple cell CSI RS and data-signal in the embodiment of the present invention, below in conjunction with accompanying drawing, the specific embodiment of the present invention is described.
Fig. 3 is the transmission processing method implementing procedure schematic diagram of pilot tone and data, as shown in the figure, can comprise the steps: in transmission processing process
Step 301, base station determine the CSI RS signal location of adjacent cell;
Step 302, base station determine according to the CSI RS signal location of adjacent cell the RE position not sending data-signal;
Step 303, base station do not send data-signal on described RE position, and other positions send according to predetermined mapping ruler.
In enforcement, when realizing whether sending data, this technological means is set is described for the conventional muting that is at present in the following examples, namely, determine the CSI RS signal location of adjacent cell in base station after, if do not need to send data on this position, be set to muting, obviously, the position not being set to muting then still sent according to predetermined mapping ruler; It should be noted that, the object be described with muting means in embodiment is better to instruct those skilled in the art how to implement the present invention, in fact, as long as the object whether base station control data sends can be realized, adopt other means to be also feasible, be not limited in muting mode.
Accordingly, additionally provide the execution mode of the pilot tone of UE side and the receiving handling method of data in the embodiment of the present invention, be described below.
Fig. 4 is the receiving handling method implementing procedure schematic diagram of pilot tone and data, as shown in the figure, can comprise the steps: in reception processing procedure
Step 401, UE determine the RE position not sending data-signal;
Step 402, UE not demodulated data signal on described RE position;
Step 403, UE are according to one of the channel information, this Cell Channel Information, adjacent cell interference of the signal determination adjacent cell received or its combination.
Above-mentioned transmission and receive processing procedure enforcement in, the RE position determining not send data-signal that is to say the no position of being muting and having arranged, then visible, between different districts, whether muting can be configured as required for the data RE of CSI RS position, also be, according to the CSI RS signal location of adjacent cell, muting setting is carried out to partial data signal, partial data signal does not then carry out muting setting, in order to better understand the enforcement how carrying out part setting, be described with example from the enforcement of frequency domain and time domain respectively below.Simultaneously, for the ease of understanding, to combine in implementation and be described, but, for a person skilled in the art, it also can separately be implemented, when separately implementing, its technical problem that will solve separately existing for base station and UE side, in conjunction with after then obviously can obtain better technique effect.
One, be muting at the upper adjacent cell CSI RS location data signal of part PRB (physical resource block, Physical Resource Block), on part PRB, data-signal is not muting.
Now, the implication of part chooses several PRB exactly on frequency domain, suppose that integer is 100 PRB, can every 2 PRB select a PRB to be muting, also can every 4 select one, can determine according to time needs in concrete enforcement.
In enforcement, when determining according to the CSI RS signal location of adjacent cell the RE position not sending data-signal in base station, for the PRB that transmission data-signal takies, when the data RE position of this PRB is adjacent cell CSI RS signal location, determine not send data-signal on RE position.
Concrete, in base station according to the CSI RS signal location of adjacent cell to data-signal carry out muting arrange time, for the PRB being set to muting, when the data RE position of this PRB is adjacent cell CSI RS signal location, this data RE position is set to muting, namely do not send data-signal, other data-signals send as usual.
In the downlink data transmission of base station, for part PRB, if the data RE position of this Resource Block is adjacent cell CSI RS signal location, then this data-signal is muting, on part PRB, data-signal is not muting, if namely this data RE position is adjacent cell CSI RS signal location, data-signal still sends.
In enforcement, on the part PRB that Whole frequency band is spacedly distributed, adjacent cell CSI RS is data-signal muting in position, namely on this Resource Unit, does not send data-signal.PRB is a kind of data resource unit, is expressed as 12 subcarriers on frequency domain, and using is the interval of a subframe.In the RE position of being data-signal muting, if there is UE to be assigned with Resource Unit at resource location, then this Resource Unit does not send data-signal.
In enforcement, when data-signal is set to muting, the number of cells opened at CSI RS position setting data signal muting sky can be determined according to multiple cell CSI RS multiplex mode.Concrete, doing the empty number of cells opened of data-signal muting can determine according to multiple cell CSI RS multiplex mode in CSI RS position, is generally 3.Data muting opens adjacent cell all of the port CSI RS signal in a PRB overhead.
In enforcement, for the PRB that transmission data-signal takies, when this RE position does not send data-signal, the PRB index (index) on this RE position can generate according to pre-set criteria.For muting, for the PRB that transmission data-signal takies, when data-signal is set to muting, the PRB index arranging muting can generate according to pre-set criteria, the pre-set criteria of PRB index for the PRB index be spacedly distributed in the system bandwidth of downstream signal transmission, can such as be spaced apart 2 or 3.
In enforcement, when not sending the RE position of data-signal, if the PRB index transmission subframe that each community does not send the RE position of data-signal is identical, UE can adopt the mode of agreement to know the PRB index of this position, if different, UE knows the index of the PRB of this position according to the Cell ID of community.For muting, for the enforcement of UE side, if the PRB index that each community arranges muting is identical, UE can adopt the mode of agreement to know to be the PRB index of muting, if different, UE can know the index of muting PRB according to the Cell ID (cell ID) of community.Concrete, the PRB index that muting is in each community can be identical, also can be different, if identical, then UE can adopt the mode of agreement to know to be the PRB index of muting, if different, UE can know the index of muting PRB according to the Cell ID of community.After UE obtains PRB index, just can do corresponding channel information and estimate and interferometry.
In enforcement, for COMP user, if send data-signal according to predetermined mapping ruler on distributed PRB, UE can abandon the data-signal collided with CSI RS signal.For muting, for COMP user, if data-signal does not arrange muting on distributed PRB, UE can abandon the data-signal collided with CSI RS signal.Concrete, for COMP user, at the Resource Block of sent data-signal, if data-signal is not muting, data-signal can be subject to the interference of CSI RS signal, and now UE can abandon these data-signals collided with CSI RS signal, in order to improve systematic function.
Finding out from above-mentioned enforcement, in enforcement, for base station, needing, when sending data-signal, frequency domain part PRB to be muting.
For UE, first know the PRB index of the muting of community, then at the position of data muting not demodulated data signal.
For COMP user, if data-signal is not muting on distributed Resource Block, data-signal can be subject to the interference of CSI RS signal, now can abandon the data-signal that these collide with CSI RS signal, to improve systematic function.
Finally, the channel information of adjacent cell, this Cell Channel Information, adjacent cell interference is gone out according to Received signal strength Combined estimator on the PRB of muting and the PRB of non-muting.
The benefit of this scheme is: more accurate channel information can be provided on the PRB of muting to estimate, the PRB not being muting measures the interference of adjacent cell data-signal, but UE can be averaged to the interference on each PRB or filtering process, estimation for channel information also can carry out Combined Treatment according to the information on multiple PRB, extracts channel information more accurately.
Two, select part CSI RS signal to send subframe and be data-signal muting, part CSI RS signal subframe is not the muting of data-signal.
Under which, be in time domain extracting part point subframe to carry out muting.
In enforcement, when determining according to the CSI RS signal location of adjacent cell the RE position not sending data-signal in base station, for the subframe sending CSI RS signal, when the RE position of transmission data-signal is adjacent cell CSI RS signal location, determine not send data-signal on RE position.For muting, for the subframe sending CSI RS signal, when the RE position of transmission data-signal is adjacent cell CSI RS signal location, this data-signal is set to muting, and other data-signals are not set to muting.
Concrete, in the downlink data transmission of base station, part is sent to the subframe of CSI RS signal, if the RE position sending data-signal is adjacent cell CSI RS signal location, then this data-signal is muting, send in part in the subframe of CSI RS signal, if the RE position sending data-signal is adjacent cell CSI RS signal location, data-signal still sends.
In enforcement, CSI RS signal subframe muting and non-muting can alternately send.
In enforcement, when not sending the RE position of data-signal, if the CSI RS transmission subframe that each community does not send the RE position of data-signal is identical, UE adopts the mode of agreement to know, and the CSI RS of this position sends subframe, if different, according to the Cell ID of community, UE knows that the CSI RS of this position sends subframe.For muting, when determining the signal location being provided with muting, if each community arranges CSI RS transmission, subframe is identical, UE can adopt the mode of agreement to know to be the CSI RS of muting to send subframe, if different, according to the Cell ID of community, UE knows that the CSI RS of muting sends subframe.
Concrete, multiple communities of doing the CSI RS subframe of muting can be identical, also can be different, if identical, then UE adopts the mode of agreement to know the subframe being muting, if different, UE knows the position of muting subframe according to the cell ID of community.UE can do corresponding channel information and estimate and interferometry after obtaining the muting setting of CSI RS subframe.
In enforcement, for the subframe sending CSI RS signal, when the RE position of transmission data-signal is adjacent cell CSI RS signal location, determine not send data-signal on RE position, the index of this CSI RS subframe can generate according to pre-set criteria.Concrete, the index pre-set criteria of CSI RS subframe can select equally spaced CSI RS subframe for sending in subframe at all CSI RS.
In enforcement, when RE position does not send data-signal, the number of cells opened at this CSI RS position sky can be determined according to multiple cell CSI RS multiplex mode.Do the empty number of cells opened of data-signal muting for muting, CSI RS position to determine according to multiple cell CSI RS multiplex mode, be generally 3.Data muting refers to that space-time opens adjacent cell so port CSI RS signal when transmission data-signal.
In enforcement, for COMP user, send data-signal if sent in subframe at distributed CSI RS according to predetermined mapping ruler, UE can abandon the data-signal collided with CSI RS signal.For muting, for COMP user, if send data-signal in subframe at distributed CSI RS do not arrange muting, UE can abandon the data-signal collided with CSI RS signal.Concrete, for COMP user, in the subframe of sent data-signal, if data-signal is not muting, data-signal can be subject to the interference of CSI RS signal, and now UE can abandon these data-signals collided with CSI RS signal, in order to improve systematic function.
Finding out from above-mentioned enforcement, in enforcement, for base station, needing, when sending data-signal, part CSI RS subframe to be muting.
For UE, first know that the CSI RS of the muting of community sends subframe, at the position of data muting not demodulated data signal, then according to estimating the channel information of adjacent cell, this Cell Channel Information, adjacent cell interference at the CSI RS of muting and the CSI RS subframe of non-muting.
The benefit of this scheme is: can measure information more accurately in the subframe of muting, carries out channel information measurement for COMP UE and cell boarder UE.The subframe not being muting is measured the interference of adjacent cell data-signal, and the user that also can be used for center of housing estate measures channel information.
Based on same inventive concept, a kind of base station, subscriber equipment is additionally provided in the embodiment of the present invention, transmission processing method, the pilot tone of the principle of dealing with problems due to these equipment and pilot tone and data are similar with the receiving handling method of data, therefore the enforcement of these equipment see the enforcement of method, can repeat part and repeats no more.
Fig. 5 is architecture of base station schematic diagram, as shown in the figure, can comprise in base station:
Position module 501, for determining the CSI RS signal location of adjacent cell;
Module 502 is set, determines for the CSI RS signal location according to adjacent cell the RE position not sending data-signal;
Sending module 503, for not sending data-signal on described RE position, other positions send according to predetermined mapping ruler.
In enforcement, module is set and can comprises the first setting unit and/or the second setting unit, wherein:
First setting unit, for the PRB taken for transmission data-signal, when the data RE position of this PRB is adjacent cell CSI RS signal location, determines not send data-signal on RE position;
Second setting unit, for for the subframe sending CSI RS signal, when the RE position of transmission data-signal is adjacent cell CSI RS signal location, determines not send data-signal on RE position.
In enforcement, the first setting unit can also be further used for the PRB taken for transmission data-signal, and when this RE position does not send data-signal, the PRB index on this RE position generates according to pre-set criteria.
In enforcement, the first setting unit can also be further used for adopting the pre-set criteria of PRB index to be the PRB index be spacedly distributed in the system bandwidth that downstream signal sends.
In enforcement, second setting unit can also be further used for the subframe for sending CSI RS signal, when the RE position of transmission data-signal is adjacent cell CSI RS signal location, determine not send data-signal on RE position, the index of this CSI RS subframe generates according to pre-set criteria.
In enforcement, the second setting unit can also be further used for adopting the index pre-set criteria of CSI RS subframe to be send in subframe at all CSI RS to select equally spaced CSI RS subframe.
In enforcement, arrange module when can also be further used for not sending data-signal on the RE position at adjacent cell CSI RS signal place, described adjacent cell number is determined according to multiple cell CSI RS multiplex mode.
Fig. 6 is user device architecture schematic diagram, and as shown in the figure, UE comprises:
Position module 601, for determining the RE position not sending data-signal;
Demodulation module 602, for not demodulated data signal on described RE position;
Determination module 603, for one of the channel information according to the signal determination adjacent cell received, this Cell Channel Information, adjacent cell interference or its combination.
In enforcement, position module can comprise primary importance unit and/or second place unit, wherein:
Primary importance unit, for determining according to PRB index the RE position not sending data-signal;
Second place unit, determines for sending subframe according to CSI RS the RE position not sending data-signal.
In enforcement, position module can be further used for when not sending the RE position of data-signal, if each community does not send the PRB index of the RE position of data-signal or CSI RS, to send subframe be identical, the PRB index of this position or CSI RS sends subframe to adopt the mode of agreement to know, if different, know that index or the CSI RS of the PRB of this position sends subframe according to the Cell ID of community.
In enforcement, can further include in UE:
Discard module 604, for for the user carrying out COMP transmission, if base station sends on the CSI RS signal present position in subframe at distributed PRB or CSI RS have sent data-signal, abandons the data-signal collided with CSI RS signal.
For convenience of description, each several part of the above device is divided into various module or unit to describe respectively with function.Certainly, the function of each module or unit can be realized in same or multiple software or hardware when implementing of the present invention.
Because the present invention is in implementation process, between different districts, whether muting can configure for the data RE of CSI RS position, muting setting can be carried out according to the CSI RS signal location of adjacent cell, part neighbor cell data RE is made to have made muting like this, part neighbor cell data RE does not make muting, thus make to provide more accurate channel information to estimate in the data of muting, and the interference of adjacent cell data-signal can be measured in the data not being muting, thus effectively can solve presence of intercell interference measurement and this two problems of channel information measurement, namely this Cell Channel Information can not be caused to measure and to occur error, also there will not be the interferometry of adjacent cell inaccurate.
Those skilled in the art should understand, embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt the form of complete hardware embodiment, completely software implementation or the embodiment in conjunction with software and hardware aspect.And the present invention can adopt in one or more form wherein including the upper computer program implemented of computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) of computer usable program code.
The present invention describes with reference to according to the flow chart of the method for the embodiment of the present invention, equipment (system) and computer program and/or block diagram.Should understand can by the combination of the flow process in each flow process in computer program instructions realization flow figure and/or block diagram and/or square frame and flow chart and/or block diagram and/or square frame.These computer program instructions can being provided to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, making the instruction performed by the processor of computer or other programmable data processing device produce device for realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be stored in can in the computer-readable memory that works in a specific way of vectoring computer or other programmable data processing device, the instruction making to be stored in this computer-readable memory produces the manufacture comprising command device, and this command device realizes the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, make on computer or other programmable devices, to perform sequence of operations step to produce computer implemented process, thus the instruction performed on computer or other programmable devices is provided for the step realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
Although describe the preferred embodiments of the present invention, those skilled in the art once obtain the basic creative concept of cicada, then can make other change and amendment to these embodiments.So claims are intended to be interpreted as comprising preferred embodiment and falling into all changes and the amendment of the scope of the invention.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (4)
1. a transmission processing method for pilot tone and data, is characterized in that, comprise the steps:
The channel state information reference signals CSI RS signal location of adjacent cell is determined in base station;
The Resource Unit RE position not sending data-signal is determined according to the CSI RS signal location of adjacent cell in base station;
Base station does not send data-signal on described RE position, and other positions send according to predetermined mapping ruler;
The RE position not sending data-signal is determined according to adjacent cell CSI RS signal location in base station, comprising:
For the Physical Resource Block PRB that transmission data-signal takies, when the data RE position of this PRB is adjacent cell CSI RS signal location, determine not send data-signal on RE position; Or, for the subframe sending CSI RS signal, when the RE position of transmission data-signal is adjacent cell CSI RS signal location, determine not send data-signal on RE position;
For the PRB that transmission data-signal takies, when this RE position does not send data-signal, the Physical Resource Block index PRB index on this RE position generates according to pre-set criteria; The pre-set criteria of PRB index is the PRB index be spacedly distributed in the system bandwidth that downstream signal sends; For the subframe sending CSI RS signal, when the RE position of transmission data-signal is adjacent cell CSI RS signal location, determine not send data-signal on RE position, the index of this CSI RS subframe generates according to pre-set criteria; The index pre-set criteria of CSI RS subframe is send in subframe at all CSI RS to select equally spaced CSI RS subframe.
2. the method for claim 1, is characterized in that, when the RE position at adjacent cell CSI RS signal place does not send data-signal, described adjacent cell number is determined according to multiple cell CSI RS multiplex mode.
3. a base station, is characterized in that, comprising:
Position module, for determining the CSI RS signal location of adjacent cell;
Module is set, determines for the CSI RS signal location according to adjacent cell the RE position not sending data-signal;
Sending module, for not sending data-signal on described RE position, other positions send according to predetermined mapping ruler;
Module is set and comprises the first setting unit and/or the second setting unit, wherein:
First setting unit, for the PRB taken for transmission data-signal, when the data RE position of this PRB is adjacent cell CSI RS signal location, determines not send data-signal on RE position;
Second setting unit, for for the subframe sending CSI RS signal, when the RE position of transmission data-signal is adjacent cell CSI RS signal location, determines not send data-signal on RE position;
First setting unit is further used for the PRB taken for transmission data-signal, and when this RE position does not send data-signal, the PRB index on this RE position generates according to pre-set criteria; First setting unit is further used for adopting the pre-set criteria of PRB index to be the PRB index be spacedly distributed in the system bandwidth that downstream signal sends;
Second setting unit is further used for the subframe for sending CSI RS signal, when the RE position of transmission data-signal is adjacent cell CSI RS signal location, determine not send data-signal on RE position, the index of this CSI RS subframe generates according to pre-set criteria; Second setting unit is further used for adopting the index pre-set criteria of CSI RS subframe to be send in subframe at all CSI RS to select equally spaced CSI RS subframe.
4. base station as claimed in claim 3, is characterized in that, arrange module when being further used for not sending data-signal on the RE position at adjacent cell CSI RS signal place, described adjacent cell number is determined according to multiple cell CSI RS multiplex mode.
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