CN104796232A - Method of transmission on unlicensed spectrum and device - Google Patents
Method of transmission on unlicensed spectrum and device Download PDFInfo
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- CN104796232A CN104796232A CN201410023195.1A CN201410023195A CN104796232A CN 104796232 A CN104796232 A CN 104796232A CN 201410023195 A CN201410023195 A CN 201410023195A CN 104796232 A CN104796232 A CN 104796232A
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Abstract
The invention discloses a method of transmission on an unlicensed spectrum and a device. In order to solve the problem of co-channel interference between wireless equipment of different operators on the unlicensed spectrum, the invention discloses a communication scheme in a burst interference environment. As an embodiment, UE (User Equipment) determines a CQI (Channel Quality Indicator) according to interference power measured within a subframe, a base station can sense burst interference noise according to the CQI, a scheduling strategy for the UE is timely adjusted, and good robustness can be acquired in the burst interference environment. In addition, a reference signal scheme of the prior LTE is reused as much as possible, and good compatibility is provided.
Description
Technical field
The present invention relates in wireless communication system the scheme utilizing unlicensed spectrum to communicate, particularly relate to the communication plan utilizing unlicensed spectrum (Unlicensed Spectrum) based on Long Term Evolution (LTE-Long Term Evolution).
Background technology
In traditional third generation partner program (3GPP – 3rd Generation PartnerProject) LTE system, transfer of data can only occur in authorizes on frequency spectrum, but along with the sharply increase of traffic carrying capacity, especially in some urban areas, frequency spectrum is authorized may to be difficult to the demand meeting traffic carrying capacity.62 plenary sessions of 3GPP RAN discuss a new research topic, namely the research (RP-132085) that unlicensed spectrum is comprehensive, main purpose is that the dependent (Non-standalone) of the LTE of research and utilization in unlicensed spectrum is disposed, and so-called dependent refers to that the communication in unlicensed spectrum is wanted and authorizes the Serving cell on frequency spectrum to be associated.One intuitively method be the concept of the carrier aggregation (CA-Carrier Aggregation) of reusing as far as possible in existing system, namely be deployed in and authorize Serving cell on frequency spectrum as main carrier (PCC-Primary ComponentCarrier), be deployed in Serving cell in unlicensed spectrum as auxiliary carrier wave (SCC-Secondary Component Carrier).
Authorizing the base station on frequency spectrum by same operator deployment, certain synergistic mechanism can be adopted between base station to avoid/reduce interference, such as inter-cell interference cancellation (ICIC-Inter-Cell Interference Cancellation), the technology such as collaborative multiple spot (CoMP-Coordinate Multi Point).From different operators, for the base station of different operator deployment, owing to lacking effective synergistic mechanism, more serious interference may may be produced in the base station of unlicensed spectrum deploy.Further, unlicensed spectrum also may also exist the interference being different from Cellular Networks that heterogeneous network produces, the interference that the data burst of such as Wifi causes.When above-mentioned interference exists, how to guarantee that the communication of LTE system in unlicensed spectrum is a problem needing to solve, for this problem, the invention discloses a kind of transmission plan in unlicensed spectrum.It should be noted that, scheme disclosed by the invention is also applicable to authorizing the communication on frequency spectrum.
Summary of the invention
The invention discloses the method in a kind of subscriber equipment (UE-User Equipment), wherein, comprise the steps:
-on first resource, receive the first reference signal carries out channel measurement
-on Secondary resource, carry out interferometry
-according to described channel measurement and described interferometry determination channel quality instruction (CQI-Channel Quality Indicator)
-send up signaling to indicate described CQI
Wherein, first resource is positioned on first carrier, and Secondary resource is positioned at the first subframe on first carrier.
First reference signal is the downlink reference signal that the Serving cell of described UE sends at first resource.As an embodiment, first resource is distributed in multiple subframe in time domain, and it is realize being correlated with that UE specifically adopts the signal of which subframe to carry out channel measurement.Described CQI is used for the scheduling of system side, as an embodiment, if described CQI is used for determining whether described UE is scheduled and is scheduled adopt which type of modulation coding state (MCS-Modulation Coding Status).
As an embodiment, described channel measurement utilizes the first reference signal to carry out channel estimating to obtain channel impulse response (CIR-Channel Impulse Response).
As an embodiment, described interferometry measures received signal power on Secondary resource and interference power.
As an embodiment, described UE according to described CIR and hypothesis Serving cell have employed described UE up-to-date report pre-coding matrix instruction (PMI-Precoding Matrix Indicator) determine channel capacity, calculate the Signal Interference and Noise Ratio (SINR-Signal to Interference andNoise Ratio) of receiver output signal again according to the receiver type of described interference power and described UE, table look-up according to described SINR and determine described CQI.
Concrete, according to an aspect of the present invention, it is characterized in that, each Physical Resource Block of first resource in a subframe is identical to the physical resource taken in (PRBP-Physical Resource Block Pair), and the resource that first resource takies in PRBP is one of following:
The resource that an option A1:L1 channel state information reference signals (CSI-RS:Channel StatusIndicator Reference Signal) port takies
The resource that an option A2:L2 cell reference signals (CRS-Cell Reference Signal) port takies
The resource that an option A3:L3 demodulated reference signal (DMRS-Demodulation ReferenceSignal) port takies
Wherein, described L1 be not more than 8 positive integer, described L2 be not more than 4 positive integer, described L3 be not more than 8 positive integer.
The resource that CRS takies is limited by frequency-domain and time-domain two dimensions, and therefore for described option A2, first resource comprises frequency-domain and time-domain resource; And CSI-RS and DMRS have employed orthogonal covering codes (OCC-Orthogonal Covering Code), therefore for described option A1 and described option A3, first resource comprises frequency domain, time domain and code domain resource.
As an embodiment, the PRB quantity that Physical Resource Block (the PRB-Physical Resource Block) quantity that first resource takies at frequency domain equals to comprise in LTE system bandwidth (is namely 6,12,25,50,75, one in 100), the physical resource that first resource takies in a subframe is one of following:
-described L1 resource that CSI-RS port takies
-described L2 resource that CRS port takies
The resource a that-described L3 DMRS port takies.
Concrete, according to an aspect of the present invention, it is characterized in that, the physical resource that Secondary resource takies in each PRBP is identical, and the resource that Secondary resource takies in PRBP is one of following:
Option B1:K the resource that CSI-RS port takies
The resource that an option B2:K DMRS port takies
Wherein, described K be not more than 8 positive integer.
As an embodiment, described K is 1.
Concrete, according to an aspect of the present invention, it is characterized in that, the reference signal sequence of the first reference signal is pseudo random sequence.
As an embodiment, first resource is distributed on N1 PRB on frequency domain, and described N1 is positive integer.If the physical resource that first resource takies in PRBP is described option A1, the generation formula of the reference signal sequence of the first reference signal reuses the generation formula of CSI-RS sequence, wherein
n1; If the physical resource that first resource takies in PRBP is described option A2, the generation formula of the reference signal sequence of the first reference signal reuses the generation formula of CRS sequence, wherein
n1; If the physical resource that first resource takies in PRBP is described option A3, the generation formula of the reference signal sequence of the first reference signal reuses the generation formula of DMRS sequence, wherein
n1.
Described downlink reference signal is modulated by described reference signal sequence and is formed, as an embodiment, described downlink reference signal adopts Quadrature Phase Shift Keying (QPSK-Quadrature Phase Shift Keying) mode to modulate and form by described reference signal sequence.
Concrete, according to an aspect of the present invention, it is characterized in that, first carrier is deployed in unlicensed spectrum.
Concrete, according to an aspect of the present invention, it is characterized in that, described up signaling sends on second service community, and second service cell deployment is in mandate frequency spectrum.
Concrete, according to an aspect of the present invention, it is characterized in that, described up signaling is positioned at the second subframe, and the second subframe is the subframe at up response/non-response (ACK/NACK) place for the Physical Downlink Shared Channel (PDSCH-Physical Downlink Shared Channel) in the first subframe.
As an embodiment, described up signaling sends on Frequency Division Duplexing (FDD) (FDD-FrequencyDivision Duplex) Serving cell, the second subframe be the first subframe after the 4th subframe; As another embodiment, described up signaling sends on time division duplex (TDD-FrequencyDivision Duplex) Serving cell, second subframe is the kth subframe after the first subframe, ACK/NACK time delay corresponding to the descending reference frame structure that described k is followed by described TDD Serving cell is determined, specifically see 3GPP standard TS36.213.
Concrete, according to an aspect of the present invention, it is characterized in that, the resource that first resource takies in PRBP is described option A3, and first resource is positioned at the first subframe, also comprises the steps:
-receiving data block in the first subframe, described data block associates with the first reference signal
Described association refers to: described data block is sent by L3 antenna port, and wherein in the transmission signal of each antenna port and the first reference signal, the reference signal of corresponding DMRS port experienced by identical wireless channel.
The essence of above-mentioned aspect of the present invention is, the first reference signal is the demodulated reference signal of described data block, and the channel that namely described UE utilizes the first reference signal to measure carries out demodulation to described data block.According to the first reference signal be in the desirable CQI that described CQI that the interference on the Secondary resource of same subframe (the first subframe) determines directly can reflect described data block.
The invention discloses a kind of method in base station, wherein, comprise the steps:
-on first resource, send the first reference signal
-on Secondary resource, keep zero energy
-receive up signaling to obtain CQI
Wherein, first resource is positioned on first carrier, and Secondary resource is positioned at the first subframe on first carrier, and described CQI determines according to the channel measurement for the first reference signal and the interferometry for Secondary resource.
Concrete, according to an aspect of the present invention, it is characterized in that, the physical resource that among each PRBPs take of first resource in a subframe is identical, and the resource that first resource takies in PRBP is one of following:
The resource that an option A1:L1 channel state information reference signals (CSI-RS:Channel StatusIndicator Reference Signal) port takies
The resource that an option A2:L2 cell reference signals (CRS-Cell Reference Signal) port takies
The resource that an option A3:L3 demodulated reference signal (DMRS-Demodulation ReferenceSignal) port takies
Wherein, described L1 be not more than 8 positive integer, described L2 be not more than 4 positive integer, described L3 be not more than 8 positive integer.
Concrete, according to an aspect of the present invention, it is characterized in that, the physical resource that Secondary resource takies in each PRBP is identical, and the resource that Secondary resource takies in PRBP is one of following:
Option B1:K the resource that CSI-RS port takies
The resource that an option B2:K DMRS port takies
Wherein, described K be not more than 8 positive integer.
As an embodiment, described K is 1.
Concrete, according to an aspect of the present invention, it is characterized in that, the reference signal sequence of the first reference signal is pseudo random sequence.
Concrete, according to an aspect of the present invention, it is characterized in that, first carrier is deployed in unlicensed spectrum.
Concrete, according to an aspect of the present invention, it is characterized in that, described up signaling sends on second service community, and second service cell deployment is in mandate frequency spectrum.
Concrete, according to an aspect of the present invention, it is characterized in that, described up signaling is positioned at the second subframe, and the second subframe is the subframe at the uplink ACK/NACK place for the PDSCH in the first subframe.
Concrete, according to an aspect of the present invention, it is characterized in that, the resource that first resource takies in PRBP is described option A3, and first resource is positioned at the first subframe, also comprises the steps:
-sending data block in the first subframe, described data block associates with the first reference signal.
The essence of above-mentioned aspect of the present invention is, first reference signal is the demodulated reference signal of described data block, according to the first reference signal be in the desirable CQI that described CQI that the interference on the Secondary resource of same subframe (the first subframe) determines directly can reflect described data block.If the MCS gap of described CQI and the actual employing of described data block is excessive, base station can adjust the scheduling to described UE in time.As an embodiment, the impact that described data block is subject to bursty interference causes described CQI very low (MCS of the actual employing of described data block is higher), and base station is that the re-transmission configuration of described data block requires higher transmitted power than described CQI or requires that lower MCS is to compensate the gap of the MCS of described CQI and described reality employing than described CQI.As another embodiment, the subframe of interference belonging to described data block of burst suddenly disappears and causes described CQI very high (MCS of the actual employing of described data block is very low), and base station is that the re-transmission configuration of described data block requires lower transmitted power than described CQI or requires that higher MCS is to compensate the gap of described CQI and the described actual MCS adopted than described CQI.
The invention discloses a kind of subscriber equipment, wherein, comprise as lower module:
First module: carry out channel measurement for receiving the first reference signal on first resource
Second module: for carrying out interferometry on Secondary resource
3rd module: for determining CQI according to described channel measurement and described interferometry
Four module: indicate described CQI for sending up signaling
Wherein, first resource is positioned on first carrier, and Secondary resource is positioned at the first subframe on first carrier.
As an embodiment, the resource that first resource takies in PRBP is described option A3, and first resource is positioned at the first subframe, and described equipment also comprises:
5th module: for receiving data block in the first subframe, described data block associates with the first reference signal
The invention discloses a kind of base station equipment, wherein, comprise as lower module:
First module: for sending the first reference signal on first resource
Second module: for keeping zero energy on Secondary resource
3rd module: obtain CQI for receiving up signaling
Wherein, first resource is positioned on first carrier, and Secondary resource is positioned at the first subframe on first carrier, and described CQI determines according to the channel measurement for the first reference signal and the interferometry for Secondary resource.
As an embodiment, the resource that first resource takies in PRBP is described option A3, and first resource is positioned at the first subframe, also comprises as lower module:
Four module: for sending data block in the first subframe, described data block associates with the first reference signal
For the different operators in unlicensed spectrum wireless device between problem of co-channel interference, the invention discloses a kind of communication plan in bursty interference environment, UE determines CQI according to the interference power measured in a subframe, base station according to described CQI can perception burst interference noise, timely adjustment for the scheduling strategy of described UE, therefore, it is possible to obtain good robustness in bursty interference environment.In addition, the present invention reuses the reference signal scheme of existing LTE as far as possible, possesses good compatibility.
Accompanying drawing explanation
By reading the detailed description done non-limiting example done with reference to the following drawings, other features, objects and advantages of the present invention will become more apparent:
Fig. 1 shows the schematic diagram that CQI according to an embodiment of the invention measures and reports;
Fig. 2 shows the schematic diagram of the data block that transmitting-receiving according to an embodiment of the invention associates with the first reference signal;
Fig. 3 shows the schematic diagram of up signaling receiving and transmission according to an embodiment of the invention;
Fig. 4 shows the structured flowchart of the processing unit in UE according to an embodiment of the invention;
Fig. 5 shows the structured flowchart of the processing unit in base station according to an embodiment of the invention;
Fig. 6 shows the structured flowchart of the processing unit in UE according to still another embodiment of the invention;
Fig. 7 shows the structured flowchart of the processing unit in base station according to still another embodiment of the invention;
Embodiment
Hereafter will be described in further detail technical scheme of the present invention by reference to the accompanying drawings, and it should be noted that, when not conflicting, the feature in the embodiment of the application and embodiment can combine arbitrarily mutually.
Embodiment 1
Embodiment 1 illustrates the schematic diagram that CQI measures and reports, as shown in Figure 1.In accompanying drawing 1, base station N1 is the serving BS of UE U2.
For
base station N1, in step s 11, first resource sends the first reference signal; Zero energy is kept in step s 12 on Secondary resource; Receive up signaling in step s 13 and obtain CQI.
For
uE U2, in the step s 21, first resource receives the first reference signal and carries out channel measurement; In step S22, Secondary resource carries out interferometry; In step S23, determine described CQI according to described channel measurement and described interferometry; In step s 24 which, send up signaling and indicate described CQI.
In embodiment 1, first resource is positioned on first carrier, and Secondary resource is positioned at the first subframe on first carrier.The physical resource that each PRB centering of first resource in a subframe takies is identical, and first resource is one of following in the resource that PRB centering takies:
Option A1:L1 the resource that CSI-RS port takies
Option A2:L2 the resource that CRS port takies
The resource that an option A3:L3 DMRS port takies
Wherein, described L1 be not more than 8 positive integer, described L2 be not more than 4 positive integer, described L3 be not more than 8 positive integer.
The physical resource that Secondary resource takies each PRB centering is identical, and Secondary resource is one of following in the resource that PRB centering takies:
Option B1:K the resource that CSI-RS port takies
The resource that an option B2:K DMRS port takies
Wherein, described K be not more than 8 positive integer.
Embodiment 2
Embodiment 2 illustrates the schematic diagram receiving and dispatching the data block associated with the first reference signal, as shown in Figure 2.In accompanying drawing 2, base station N3 is the serving BS of UE U4.
For
base station N3, in step S31, first resource sends the first reference signal; In step s 32, the data block that transmission and the first reference signal are associated in the first subframe; On Secondary resource, zero energy is kept in step S33; In step S34, receive up signaling obtain CQI.
For
uE U4, in step S41, first resource receives the first reference signal and carries out channel measurement; In step S42, the data block that reception and the first reference signal are associated in the first subframe; In step S43, Secondary resource carries out interferometry; In step S44, determine described CQI according to described channel measurement and described interferometry; In step S45, send up signaling and indicate described CQI.
In embodiment 2, first resource is positioned at the first subframe on first carrier, and Secondary resource is positioned at the first subframe on first carrier.The physical resource that each PRB centering of first resource in a subframe takies is identical, and first resource is the resource that L DMRS port takies in the resource that PRB centering takies, described L be not more than 8 positive integer.
The physical resource that Secondary resource takies each PRB centering is identical, and Secondary resource is one of following in the resource that PRB centering takies:
Option B1:K the resource that CSI-RS port takies
The resource that an option B2:K DMRS port takies
Wherein, described K be not more than 8 positive integer.
In embodiment 2, the reference signal sequence of the first reference signal is pseudo random sequence, and first carrier is deployed in unlicensed spectrum.
Embodiment 3
Embodiment 3 illustrates the schematic diagram of up signaling receiving and transmission, as shown in Figure 3.In accompanying drawing 3, a grid is a subframe, the grid of its bend mark is subframe i.e. the first subframe belonging to Secondary resource, the grid of backslash mark is the second subframe, the grid of thick line mark is the subframe belonging to first resource, first carrier authorizes the carrier wave in frequency spectrum or unlicensed spectrum, and second service community is FDD Serving cell, describes the up-link carrier of second service community in accompanying drawing 3.
For
base station, first on first resource, (affiliated subframe comprises subframe 1,6,11,16...) sends the first reference signal; Then on Secondary resource, (affiliated subframe is subframe 16) keeps zero energy; Then receive up signaling and obtain CQI.
For
uE, first on first resource (affiliated subframe comprises subframe 1,6,11,16..., described UE specifically adopt the signal of which subframe carry out channel measurement be realize relevant) reception first reference signal carries out channel measurement; In step S22, on Secondary resource, (affiliated subframe is subframe 16) carries out interferometry; In step S23, determine described CQI according to described channel measurement and described interferometry; In step s 24 which, send up signaling and indicate described CQI.
In embodiment 3, first resource is positioned at the multiple subframes on first carrier, and Secondary resource is positioned at the first subframe on first carrier.The physical resource that each PRB centering of first resource in a subframe takies is identical, and first resource is the resource that L CSI-RS port takies in the resource that PRB centering takies, described L be not more than 8 positive integer.The physical resource that Secondary resource takies each PRB centering is identical, and Secondary resource is the resource that K CSI-RS port takies in the resource that PRB centering takies, described K be not more than 8 positive integer.The reference signal sequence of the first reference signal is pseudo random sequence.Described up signaling is positioned at the second subframe, and the second subframe is the subframe at the uplink ACK/NACK place for the PDSCH in the first subframe, for FDD system, the second subframe be the first subframe after the 4th subframe, i.e. subframe 20.
As a sub-embodiment of embodiment 3, described K is 1.
Embodiment 4
The structured flowchart of the processing unit in the UE that embodiment 4 illustrates, as shown in Figure 4.In accompanying drawing 4, UE processing unit 200 is by receiver module 201, and measurement module 202, determination module 203, sending module 204 forms.
Receiver module 201 carries out channel measurement for receiving the first reference signal on first resource; Measurement module 202 for carrying out interferometry on Secondary resource; Determination module 203 is for determining CQI according to described channel measurement and described interferometry; Sending module 204 indicates described CQI for sending up signaling.
In embodiment 4, first resource is positioned on first carrier, and Secondary resource is positioned at the first subframe on first carrier.First carrier is deployed in unlicensed spectrum.First resource the resource that PRB centering takies to be L described in the resource that takies of L CRS port be not more than 4 positive integer.Secondary resource is the resource that K CSI-RS port takies in the resource that PRB centering takies, described K be not more than 8 positive integer.
Embodiment 5
Embodiment 5 illustrates the structured flowchart of the processing unit in base station, as shown in Figure 5.In accompanying drawing 5, base station processing unit 300 is by sending module 301, and processing module 302, receiver module 303 forms.
Sending module 301 for sending the first reference signal on first resource; Processing module 302 for keeping zero energy on Secondary resource; Receiver module 303 obtains CQI for receiving up signaling.
In embodiment 5, first resource is positioned on first carrier, and Secondary resource is positioned at the first subframe on first carrier, and described CQI determines according to the channel measurement for the first reference signal and the interferometry for Secondary resource.Described up signaling sends on second service community, and second service cell deployment is in mandate frequency spectrum.Described up signaling is positioned at the second subframe, and the second subframe is the subframe at the uplink ACK/NACK place for the PDSCH in the first subframe.First resource the resource that PRB centering takies to be L described in the resource that takies of L CRS port be not more than 4 positive integer.Secondary resource is the resource that K DMRS port takies in the resource that PRB centering takies, described K be not more than 8 positive integer.
Embodiment 6
The structured flowchart of the processing unit in the UE that embodiment 6 illustrates, as shown in Figure 6.In accompanying drawing 6, UE processing unit 400 is by receiver module 401, and receiver module 402, measurement module 403, determination module 404, sending module 405 forms.
Receiver module 401 carries out channel measurement for receiving the first reference signal on first resource; Receiver module 402 is for receiving data block in the first subframe, and described data block associates with the first reference signal, data block described in the channel demodulation namely utilizing the first reference signal to measure; Measurement module 403 for carrying out interferometry on Secondary resource; Determination module 404 is for determining CQI according to described channel measurement and described interferometry; Sending module 405 indicates described CQI for sending up signaling.
In embodiment 6, first resource is positioned at the first subframe on first carrier, and Secondary resource is positioned at the first subframe on first carrier.First carrier is deployed in unlicensed spectrum.First resource the resource that PRB centering takies to be L described in the resource that takies of L DMRS port be not more than 8 positive integer.Secondary resource is the resource that K DMRS port takies in the resource that PRB centering takies, described K be not more than 8 positive integer.Described L and described K and be not more than 8.
Embodiment 7
Embodiment 7 illustrates the structured flowchart of the processing unit in base station, as shown in Figure 7.In accompanying drawing 7, base station processing unit 500 is by sending module 501, and sending module 502, processing module 503, receiver module 504 forms.
Sending module 501 for sending the first reference signal on first resource; Sending module 502 is for sending data block in the first subframe, and described data block associates with the first reference signal, and the signal namely utilizing the first reference signal and described data block to send at the antenna port of correspondence experienced by identical wireless channel; Processing module 503 for keeping zero energy on Secondary resource; Receiver module 504 obtains CQI for receiving up signaling.
In embodiment 7, first resource is positioned on first carrier, and first carrier is deployed in mandate frequency spectrum, and Secondary resource is positioned at the first subframe on first carrier, and described CQI determines according to the channel measurement for the first reference signal and the interferometry for Secondary resource.Described up signaling sends on second service community, and second service cell deployment is in mandate frequency spectrum.Described up signaling is positioned at the second subframe, and the second subframe is the subframe at the uplink ACK/NACK place for the PDSCH in the first subframe.First resource the resource that PRB centering takies to be L described in the resource that takies of L CSI-RS port be not more than 8 positive integer.Secondary resource is the resource that K DMRS port takies in the resource that PRB centering takies, described K be not more than 8 positive integer.
The all or part of step that one of ordinary skill in the art will appreciate that in said method can be carried out instruction related hardware by program and complete, and described program can be stored in computer-readable recording medium, as read-only memory, and hard disk or CD etc.Optionally, all or part of step of above-described embodiment also can use one or more integrated circuit to realize.Accordingly, each modular unit in above-described embodiment, can adopt example, in hardware to realize, and also can be realized by the form of software function module, the application is not limited to the combination of the software and hardware of any particular form.
The above, be only preferred embodiment of the present invention, be not intended to limit protection scope of the present invention.Within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improves, all should be included within protection scope of the present invention.
Claims (22)
1. the method in UE, wherein, comprises the steps:
-on first resource, receive the first reference signal carries out channel measurement
-on Secondary resource, carry out interferometry
-determine CQI according to described channel measurement and described interferometry
-send up signaling to indicate described CQI
Wherein, first resource is positioned on first carrier, and Secondary resource is positioned at the first subframe on first carrier.
2. method according to claim 1, is characterized in that, the physical resource that each PRB centering of first resource in a subframe takies is identical, and first resource is one of following in the resource that PRB centering takies:
Option A1:L1 the resource that CSI-RS port takies
Option A2:L2 the resource that CRS port takies
The resource that an option A3:L3 DMRS port takies
Wherein, described L1 be not more than 8 positive integer, described L2 be not more than 4 positive integer, described L3 be not more than 8 positive integer.
3. method according to claim 1, is characterized in that, the physical resource that Secondary resource takies each PRB centering is identical, and Secondary resource is one of following in the resource that PRB centering takies:
Option B1:K the resource that CSI-RS port takies
The resource that an option B2:K DMRS port takies
Wherein, described K be not more than 8 positive integer.
4. method according to claim 1, is characterized in that, the reference signal sequence of the first reference signal is pseudo random sequence.
5. method according to claim 1, is characterized in that, first carrier is deployed in unlicensed spectrum.
6. method according to claim 1, is characterized in that, described up signaling sends on second service community, and second service cell deployment is in mandate frequency spectrum.
7. method according to claim 1, is characterized in that, described up signaling is positioned at the second subframe, and the second subframe is the subframe at the uplink ACK/NACK place for the PDSCH in the first subframe.
8. method according to claim 2, is characterized in that, first resource is described option A3 in the resource that PRB centering takies, and first resource is positioned at the first subframe, also comprises the steps:
-receiving data block in the first subframe, described data block associates with the first reference signal.
9. method according to claim 3, is characterized in that, described K is 1.
10. the method in base station, wherein, comprises the steps:
-on first resource, send the first reference signal
-on Secondary resource, keep zero energy
-receive up signaling to obtain CQI
Wherein, first resource is positioned on first carrier, and Secondary resource is positioned at the first subframe on first carrier, and described CQI determines according to the channel measurement for the first reference signal and the interferometry for Secondary resource.
11. methods according to claim 10, is characterized in that, the physical resource that each PRB centering of first resource in a subframe takies is identical, and first resource is one of following in the resource that PRB centering takies:
Option A1:L1 the resource that CSI-RS port takies
Option A2:L2 the resource that CRS port takies
The resource that an option A3:L3 DMRS port takies
Wherein, described L1 be not more than 8 positive integer, described L2 be not more than 4 positive integer, described L3 be not more than 8 positive integer.
12. methods according to claim 10, is characterized in that, the physical resource that Secondary resource takies each PRB centering is identical, and Secondary resource is one of following in the resource that PRB centering takies:
Option B1:K the resource that CSI-RS port takies
The resource that an option B2:K DMRS port takies
Wherein, described K be not more than 8 positive integer.
13. methods according to claim 10, is characterized in that, the reference signal sequence of the first reference signal is pseudo random sequence.
14. methods according to claim 10, it is characterized in that, first carrier is deployed in unlicensed spectrum.
15. methods according to claim 10, is characterized in that, described up signaling sends on second service community, and second service cell deployment is in mandate frequency spectrum.
16. methods according to claim 10, is characterized in that, described up signaling is positioned at the second subframe, and the second subframe is the subframe at the uplink ACK/NACK place for the PDSCH in the first subframe.
17. methods according to claim 10, is characterized in that, first resource is described option A3 in the resource that PRB centering takies, and first resource is positioned at the first subframe, also comprises the steps:
-sending data block in the first subframe, described data block associates with the first reference signal.
18. methods according to claim 12, is characterized in that, described K is 1.
19. 1 kinds of subscriber equipmenies, wherein, comprise as lower module:
First module: carry out channel measurement for receiving the first reference signal on first resource
Second module: for carrying out interferometry on Secondary resource
3rd module: for determining CQI according to described channel measurement and described interferometry
Four module: indicate described CQI for sending up signaling
Wherein, first resource is positioned on first carrier, and Secondary resource is positioned at the first subframe on first carrier.
20. equipment according to claim 19, is characterized in that, first resource is described option A3 in the resource that PRB centering takies, and first resource is positioned at the first subframe, and described equipment also comprises:
5th module: for receiving data block in the first subframe, described data block associates with the first reference signal.
21. 1 kinds of base station equipments, wherein, comprise as lower module:
First module: for sending the first reference signal on first resource
Second module: for keeping zero energy on Secondary resource
3rd module: obtain CQI for receiving up signaling
Wherein, first resource is positioned on first carrier, and Secondary resource is positioned at the first subframe on first carrier, and described CQI determines according to the channel measurement for the first reference signal and the interferometry for Secondary resource.
22. equipment according to claim 21, is characterized in that, first resource is described option A3 in the resource that PRB centering takies, and first resource is positioned at the first subframe, also comprises as lower module:
Four module: for sending data block in the first subframe, described data block associates with the first reference signal.
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