CN110048820A - A kind of configuration method of channel state information, feedback method and device - Google Patents
A kind of configuration method of channel state information, feedback method and device Download PDFInfo
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- CN110048820A CN110048820A CN201810039647.3A CN201810039647A CN110048820A CN 110048820 A CN110048820 A CN 110048820A CN 201810039647 A CN201810039647 A CN 201810039647A CN 110048820 A CN110048820 A CN 110048820A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- 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
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
- H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
- H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
- H04B7/0621—Feedback content
- H04B7/0626—Channel coefficients, e.g. channel state information [CSI]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
Abstract
The present invention provides configuration method, feedback method and the device of a kind of channel state information, the configuration method of the channel state information is applied to base station, include: the configuration information for sending the CSI-RS of non-zero power to terminal, includes: that instruction terminal understands the CSI-RS received according to first method, second method or Third Way in configuration information；First method are as follows: the CSI-RS received is interpreted as to the CSI-RS of the port X；Second method are as follows: the CSI-RS received is interpreted as to the CSI-RS of X/N port of N group；Third Way are as follows: the CSI-RS received is interpreted as to the CSI-RS of X/N port of CSI-RS and N group of the port X respectively.In the present invention, the understanding mode for the CSI-RS that terminal can be sent according to base station understands the CSI-RS that base station is sent, to carry out channel measurement, guarantees the consistency that base station and terminal understand CSI-RS.
Description
Technical field
The present invention relates to wireless communication technology field more particularly to a kind of configuration methods of channel state information, feedback side
Method and device.
Background technique
In lte-a system, in order to support multiple-input and multiple-output (the Multiple Input Multiple of higher order
Output, abbreviation MIMO) transmission (could support up 8 data Layers), it introduces based on channel state information reference signals
(Channel State Information-Reference Signal, abbreviation CSI-RS) carries out channel state information
(Channel State Information, abbreviation CSI) measurement.CSI-RS includes two types: non-zero power (Non-Zero
Power, NZP) CSI-RS and zero energy (Zero Power, ZP) CSI-RS, wherein non-zero power CSI-RS is not carried out by one group
The known signal of precoding processing, i.e. pilot frequency sequence are constituted, by corresponding antenna port in corresponding CSI-RS resource
(port) it sends, for measuring the channel coefficients of corresponding port.Zero energy CSI-RS is made of one group of blank signal, corresponding
Corresponding antenna port does not send any signal in CSI-RS resource, for measuring the disturbed condition of corresponding running time-frequency resource.
In lte-a system, after the CSI-RS of multiport is sent to terminal by base station, terminal may be managed based on various ways
The CSI-RS of the multiport is solved, to report corresponding pre-coding matrix instruction (Recoding Matrix Indicator, letter
Claim PMI), channel quality instruction (Channel Quality Indicator, abbreviation CQI) and/or order instruction (Rank
Indication, abbreviation RI), this be likely to result in base station and terminal side CSI-RS is understood it is inconsistent.
Summary of the invention
In view of this, the present invention provides configuration method, feedback method and the device of a kind of channel state information, for guaranteeing
The consistency of base station and terminal to the understanding of CSI-RS.
In order to solve the above technical problems, in a first aspect, the present invention provides a kind of configuration method of channel state information, application
In base station, comprising:
The configuration information of the channel state information reference signals CSI-RS of non-zero power, the configuration information are sent to terminal
In include: that the instruction terminal understands the CSI-RS received according to first method, second method or Third Way；
Wherein, the first method are as follows: the CSI-RS received is interpreted as to the CSI-RS of the port X；
The second method are as follows: the CSI-RS received is interpreted as to the CSI-RS of X/N port of N group；
The Third Way are as follows: the CSI-RS received is interpreted as to X/N port of CSI-RS and N group of the port X respectively
CSI-RS；
X is even number, and N is the positive integer that can be divided exactly by the X.
Second aspect, the present invention also provides a kind of feedback methods of channel state information, are applied to terminal, comprising:
The configuration information of the CSI-RS for the non-zero power that base station is sent is received, includes: described in instruction in the configuration information
Terminal understands the CSI-RS received according to first method, second method or Third Way；
Wherein, the first method are as follows: the CSI-RS received is interpreted as to the CSI-RS of the port X；
The second method are as follows: the CSI-RS received is interpreted as to the CSI-RS of X/N port of N group；
The Third Way are as follows: the CSI-RS received is interpreted as to X/N port of CSI-RS and N group of the port X respectively
CSI-RS；
X is even number, and N is the positive integer that can be divided exactly by the X.
The third aspect, the present invention also provides a kind of base stations, comprising:
Transmitter includes: to refer in the configuration information for the configuration information of from the CSI-RS to terminal transmission non-zero power
Show that the terminal understands the CSI-RS received according to first method, second method or Third Way；
Wherein, the first method are as follows: the CSI-RS received is interpreted as to the CSI-RS of the port X；
The second method are as follows: the CSI-RS received is interpreted as to the CSI-RS of X/N port of N group；
The Third Way are as follows: the CSI-RS received is interpreted as to X/N port of CSI-RS and N group of the port X respectively
CSI-RS；
X is even number, and N is the positive integer that can be divided exactly by the X.
Fourth aspect, the present invention also provides a kind of terminals, comprising:
Receiver, the configuration information of the CSI-RS of the non-zero power for receiving base station transmission, is wrapped in the configuration information
It includes: indicating that the terminal understands the CSI-RS received according to first method, second method or Third Way；
Wherein, the first method are as follows: the CSI-RS received is interpreted as to the CSI-RS of the port X；
The second method are as follows: the CSI-RS received is interpreted as to the CSI-RS of X/N port of N group；
The Third Way are as follows: the CSI-RS received is interpreted as to X/N port of CSI-RS and N group of the port X respectively
CSI-RS；
X is even number, and N is the positive integer that can be divided exactly by the X.
5th aspect the present invention also provides a kind of base station, including memory, processor and is stored on the memory simultaneously
The computer program that can be run on the processor；It is characterized in that, being realized when the processor execution described program above-mentioned
The configuration method of channel state information.
6th aspect the present invention also provides a kind of terminal, including memory, processor and is stored on the memory simultaneously
The computer program that can be run on the processor；It is characterized in that, being realized when the processor execution described program above-mentioned
The feedback method of channel state information.
7th aspect, the present invention also provides a kind of computer readable storage mediums, are stored thereon with computer program, the journey
The step in the configuration method of above-mentioned channel state information is realized when sequence is executed by processor.
Eighth aspect, the present invention also provides a kind of computer readable storage mediums, are stored thereon with computer program, the journey
The step in the feedback method of above-mentioned channel state information is realized when sequence is executed by processor.
The advantageous effects of the above technical solutions of the present invention are as follows:
Base station sends the configuration information of the CSI-RS of non-zero power to terminal, includes the CSI-RS in the configuration information
Understanding mode.The understanding mode for the CSI-RS that terminal can be sent according to base station understands the CSI-RS that base station is sent, thus into
Row channel measurement, and at least one of base station feedback PMI, CQI and RI, guarantee base station and terminal understand CSI-RS one
Cause property.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below by institute in the description to the embodiment of the present invention
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention
Example, for those of ordinary skill in the art, without any creative labor, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the flow diagram of the configuration method of the channel state information of the embodiment of the present invention；
Fig. 2 is the configuration method schematic diagram of the configuration information of the CSI-RS of the embodiment of the present invention；
Fig. 3 is the flow diagram of the configuration method of the channel state information of the embodiment of the present invention；
Fig. 4 is the schematic diagram of the application scenarios of the embodiment of the present invention one；
Fig. 5 is the schematic diagram of the application scenarios of the embodiment of the present invention two；
Fig. 6 is the schematic diagram of the application scenarios of the embodiment of the present invention three；
Fig. 7 is the structural schematic diagram of the base station of the embodiment of the present invention；
Fig. 8 is the structural schematic diagram of the terminal of the embodiment of the present invention.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
Attached drawing, the technical solution of the embodiment of the present invention is clearly and completely described.Obviously, described embodiment is this hair
Bright a part of the embodiment, instead of all the embodiments.Based on described the embodiment of the present invention, ordinary skill
Personnel's every other embodiment obtained, shall fall within the protection scope of the present invention.
Referring to FIG. 1, Fig. 1 is the flow diagram of the configuration method of the channel state information of the embodiment of the present invention, the letter
The configuration method of channel state information is applied to base station, comprising:
Step 11: sending the configuration information of the CSI-RS of non-zero power to terminal, include: instruction institute in the configuration information
It states terminal and understands the CSI-RS received according to first method, second method or Third Way；
Wherein, the first method are as follows: the CSI-RS received is interpreted as to the CSI-RS of the port X；
The second method are as follows: the CSI-RS received is interpreted as to the CSI-RS of X/N port of N group；
The Third Way are as follows: the CSI-RS received is interpreted as to X/N port of CSI-RS and N group of the port X respectively
CSI-RS；
X is even number, and N is the positive integer that can be divided exactly by the X.
In the embodiment of the present invention, base station sends the configuration information of the CSI-RS of non-zero power, the configuration information to terminal
In include the CSI-RS understanding mode.The understanding mode for the CSI-RS that terminal can be sent according to base station understands that base station is sent out
The CSI-RS sent to carry out channel measurement, and at least one of base station feedback PMI, CQI and RI, guarantees base station and end
Hold the consistency understood CSI-RS.
In the embodiment of the present invention, the port, that is, antenna port, it is preferred that the X is 2,4 or 8.Certainly, in the present invention
Some other embodiment in, be also not excluded for X be other even numbers possibility, for example, bigger numerical value, 16 etc..
In the embodiment of the present invention, it is preferable that the N is the number for the wave beam (beam) that base station uses.
In the real-time example of the present invention, it is preferable that base station, can into the configuration information of the CSI-RS for the non-zero power that terminal is sent
To indicate different understanding modes using two bits, for example, indicating to indicate that the terminal is managed according to first method using 00
The CSI-RS that solution receives indicates to indicate that the terminal understands the CSI-RS received according to second method using 01, using 10
It indicates to indicate that the terminal understands the CSI-RS received according to Third Way.And the meaning that above-mentioned bit represents, it can be pre-
First define in the protocol.
Certainly, it in some other embodiment of the invention, is also not excluded for indicating above-mentioned understanding side using other modes
Formula.
In the real-time example of the present invention, it is described to terminal send non-zero power CSI-RS configuration information the step of after also wrap
It includes:
Base station sends CSI-RS to the terminal.
Specifically, base station can send the CSI-RS of a port X to the terminal；Alternatively, base station can also be to described
The CSI-RS of the terminal transmission port N group X/N.
That is, base station can send CSI-RS by two ways, the flexibility ratio of sending method is improved.
In the embodiment of the present invention, reception is understood according to first method when in the configuration information including: the instruction terminal
When the CSI-RS arrived, in the configuration information further include: indicate that the terminal calculates at least one of PMI, CQI and RI, and
Feed back to the base station；Wherein, the PMI corresponds to the port X code book；
When including: that the instruction terminal understands the CSI-RS received according to second method in the configuration information, institute
It states in configuration information further include: indicate that the terminal calculates the corresponding PMI of CSI-RS of every group of X/N port, combine and examine
The corresponding CQI of CSI-RS for the port N group X/N considered, and, the CSI-RS for combining the port N group X/N of consideration is corresponding
RI or every group of X/N port the corresponding RI of CSI-RS, and feed back to the base station, wherein every PMI corresponds to X/
N-port code book；
When including: that the instruction terminal understands the CSI-RS received according to Third Way in the configuration information, institute
It states in configuration information further include: indicate the terminal respectively according to the CSI-RS of the port X and described X/N port of N group
CSI-RS calculates at least one of PMI, CQI and RI, obtains the first calculated result and the second calculated result, and from described the
One of selection feeds back to the base station in one calculated result and the second calculated result.
In the embodiment of the present invention, the understanding mode of the CSI-RS can be one of three above content, to mention
The flexibility ratio of high base station configuration CSI-RS, and guarantee the consistency that base station and terminal understand CSI-RS.
In the embodiment of the present invention, reception is understood according to Third Way when in the configuration information including: the instruction terminal
When the CSI-RS arrived, the configuration information can also include: the instruction terminal with the handling capacity predicted for reference, from described the
One of selection feeds back to the base station in one calculated result and the second calculated result.
That is, when the terminal understands the CSI-RS according to the first method and second method respectively, and calculate PMI,
At least one of CQI and RI obtain the first calculated result being calculated according to the first method and according to described
After the second calculated result that two modes are calculated, it can be reference with preset handling capacity, determine that handling capacity is preferably counted
Calculate as a result, and handling capacity preferably calculated result is fed back into base station, to improve system performance.
In the embodiment of the present invention, the base station can be sent by semi-static or dynamic sending method to the terminal non-
The configuration information of the CSI-RS of zero energy, wherein semi-static sending method is generally referred to through wireless heterogeneous networks (Radio
Resource Control, abbreviation RRC) signaling sends the configuration information of the CSI-RS, this kind of sending method to the terminal
It may need several hundred milliseconds that can send once, it is slower to send frequency.Dynamic sending method is generally referred to through L1 or L2
Signaling sends the configuration information of the CSI-RS to the terminal, and it is very fast that this kind of sending method sends frequency.
Referring to FIG. 2, Fig. 2 is the configuration method schematic diagram of the configuration information of the CSI-RS of the embodiment of the present invention, the present invention
In embodiment, base station configures the configuration information of CSI-RS, and the configuration information of CSI-RS includes CSI reporting setting
0, CSI reporting setting 0 can be configured to Resource setting 0, indicate that the CSI-RS sent is non-zero
Power CSI-RS is used for channel measurement, also can be configured to Resource setting 1, indicates that the CSI-RS sent is zero power
Rate CSI-RS is used for interference measurement (Resource setting 1), when CSI reporting setting 0 is configured to
When Resource setting 0, CSI-RS resource set 0 can also be configured, as CSI-RS resource set 0
When being configured to CSI-RS resource 0, indicates that instruction terminal understands in the way of the CSI-RS of 14 port (port) and connect
The CSI-RS received indicates that instruction terminal is pressed when CSI-RS resource set 0 is configured to CSI-RS resource 1
The CSI-RS received is understood according to the mode of the CSI-RS of 22 ports (port).
Referring to FIG. 3, Fig. 3 is the flow diagram of the feedback method of the channel state information of the embodiment of the present invention, the letter
The feedback method of channel state information is applied to terminal, comprising:
Step 31: receiving the configuration information of the CSI-RS for the non-zero power that base station is sent, include: to refer in the configuration information
Show that the terminal understands the CSI-RS received according to first method, second method or Third Way；
Wherein, the first method are as follows: the CSI-RS received is interpreted as to the CSI-RS of the port X；
The second method are as follows: the CSI-RS received is interpreted as to the CSI-RS of X/N port of N group；
The Third Way are as follows: the CSI-RS received is interpreted as to X/N port of CSI-RS and N group of the port X respectively
CSI-RS；
X is even number, and N is the positive integer that can be divided exactly by the X.
In the embodiment of the present invention, terminal receives the configuration information of the CSI-RS for the non-zero power that base station is sent, the configuration
Include the understanding mode of the CSI-RS in information, according to the understanding mode for the CSI-RS that base station is sent, understands what base station was sent
CSI-RS to carry out channel measurement, and at least one of base station feedback PMI, CQI and RI, guarantees base station and terminal pair
The consistency that CSI-RS understands.
In the embodiment of the present invention, the port, that is, antenna port, it is preferred that the X is 2,4 or 8.Certainly, in the present invention
Some other embodiment in, be also not excluded for X be other even numbers possibility, for example, bigger numerical value, 16 etc..
In the embodiment of the present invention, it is preferable that the N is the number for the wave beam (beam) that base station uses.
In the real-time example of the present invention, it is preferable that base station, can into the configuration information of the CSI-RS for the non-zero power that terminal is sent
To indicate different understanding modes using two bits, for example, indicating to indicate that the terminal is managed according to first method using 00
The CSI-RS that solution receives indicates to indicate that the terminal understands the CSI-RS received according to second method using 01, using 10
It indicates to indicate that the terminal understands the CSI-RS received according to Third Way.And the meaning that above-mentioned bit represents, it can be pre-
First define in the protocol.
Certainly, it in some other embodiment of the invention, is also not excluded for indicating above-mentioned understanding side using other modes
Formula.
In the embodiment of the present invention, reception is understood according to first method when in the configuration information including: the instruction terminal
When the CSI-RS arrived, in the configuration information further include: indicate that the terminal calculates at least one of PMI, CQI and RI, and
Feed back to the base station；Wherein, the PMI corresponds to the port X code book；
When including: that the instruction terminal understands the CSI-RS received according to second method in the configuration information, institute
It states in configuration information further include: indicate that the terminal calculates the corresponding PMI of CSI-RS of every group of X/N port, combine and examine
The corresponding CQI of CSI-RS for the port N group X/N considered, and, the CSI-RS for combining the port N group X/N of consideration is corresponding
RI or every group of X/N port the corresponding RI of CSI-RS, and feed back to the base station, wherein every PMI corresponds to X/
N-port code book；
When including: that the instruction terminal understands the CSI-RS received according to Third Way in the configuration information, institute
It states in configuration information further include: indicate the terminal respectively according to the CSI-RS of the port X and described X/N port of N group
CSI-RS calculates at least one of PMI, CQI and RI, obtains the first calculated result and the second calculated result, and from described the
One of selection feeds back to the base station in one calculated result and the second calculated result.
In the embodiment of the present invention, the understanding mode of the CSI-RS can be one of three above content, to mention
The flexibility ratio of high base station configuration CSI-RS, and guarantee the consistency that base station and terminal understand CSI-RS.
In the embodiment of the present invention, reception is understood according to Third Way when in the configuration information including: the instruction terminal
When the CSI-RS arrived, the configuration information can also include: the instruction terminal with the handling capacity predicted for reference, from described the
One of selection feeds back to the base station in one calculated result and the second calculated result.
That is, when the terminal understands the CSI-RS according to the first method and second method respectively, and calculate PMI,
At least one of CQI and RI obtain the first calculated result being calculated according to the first method and according to described
After the second calculated result that two modes are calculated, it can be reference with preset handling capacity, determine that handling capacity is preferably counted
Calculate as a result, and handling capacity preferably calculated result is fed back into base station, to improve system performance.
In the embodiment of the present invention, terminal reception base station is sent described by semi-static or dynamic sending method
The configuration information of CSI-RS, wherein semi-static sending method is generally referred to through wireless heterogeneous networks (Radio Resource
Control, abbreviation RRC) signaling sends the configuration information of the CSI-RS to the terminal, and this kind of sending method may need several
Hundred milliseconds can send once, and it is slower to send frequency.Dynamic sending method is generally referred to through L1 or L2 signaling to described
Terminal sends the configuration information of the CSI-RS, and it is very fast that this kind of sending method sends frequency.
In the embodiment of the present invention, it is described receive base station send non-zero power CSI-RS configuration information the step of it
Afterwards, further includes: receive the CSI-RS that the base station is sent.
In the embodiment of the present invention, after described the step of receiving the CSI-RS that the base station is sent further include:
At least one of understand the CSI-RS received according to the configuration information, and calculate PMI, CQI and RI, it will count
At least one of obtained PMI, CQI and RI are reported to the base station.
In the embodiment of the present invention, reception is understood according to Third Way when in the configuration information including: the instruction terminal
It is described that the CSI-RS received is understood according to the configuration information when CSI-RS arrived, and calculate in PMI, CQI and RI at least
One of, the step of at least one of PMI, CQI and RI for being calculated are reported to the base station includes:
Respectively according to the CSI-RS of the CSI-RS of the port X and described X/N port of N group, calculate in PMI, CQI and RI
At least one of, obtain the first calculated result and the second calculated result, and from first calculated result and the second calculated result
One of middle selection feeds back to the base station；
To the base station report the calculated result of feedback it is corresponding be the port X CSI-RS or the N group X/N
The CSI-RS of port, so that base station can understand the corresponding understanding mode of calculated result that terminal reports.
Configuration method and feedback side below with reference to concrete application scene, to the channel state information in the embodiment of the present invention
Method is illustrated.
Embodiment one
Referring to FIG. 4, Fig. 4 is the schematic diagram of the application scenarios of the embodiment of the present invention one, it is applied to high frequency in the present embodiment
The transmitting scene of single user Multiple Input Multiple Output (SU-MIMO), there are two aerial panel (panel), terminals to have two for base station tool
A antenna panel, base station support 1~2 stream, the different antennae panel of base station to use the analog beam (beam1) of the same direction,
Multithread is supported by not same polarization, and in figure, oval representative simulation wave beam, elliptical direction represents the direction of wave beam.
In the embodiment of the present invention, base station sends the configuration information of CSI-RS to terminal, includes instruction institute in the configuration information
It states terminal at least one of to understand CSI-RS according to first method, and calculate PMI, CQI and RI, the first method is that will connect
The CSI-RS received is interpreted as the CSI-RS of 4 ports, wherein the corresponding 4 port code books of the PMI.Base station sends one 4 to terminal
The CSI-RS of port, each port use beam1 to send.Terminal receive CSI-RS configuration information and CSI-RS it
At least one of afterwards, the CSI-RS received is interpreted as to the CSI-RS of 4 ports, and calculate PMI, CQI and RI, wherein institute
State the corresponding 4 port code books of PMI.
Embodiment two
Referring to FIG. 5, Fig. 5 is the schematic diagram of the application scenarios of the embodiment of the present invention two, it is applied to high frequency in the present embodiment
The transmitting scene of single user Multiple Input Multiple Output (SU-MIMO), there are two aerial panel (panel), terminals to have two for base station tool
1~4 stream is supported in a antenna panel, base station, the different antennae panel of base station using different directions analog beam (beam1 and
Beam2), multithread is supported by not same polarization and different analog beams, in figure, oval representative simulation wave beam is elliptical towards generation
The direction of table wave beam.
In the embodiment of the present invention, base station sends the configuration information of CSI-RS to terminal, includes instruction institute in the configuration information
It states terminal at least one of to understand CSI-RS according to first method, and calculate PMI, CQI and RI, the first method is will
CSI-RS is interpreted as the CSI-RS of 4 ports, wherein the corresponding 4 port code books of the PMI.Base station sends 4 ports to terminal
CSI-RS, two of them port are sent using beam1, and two ports are sent using beam2.Terminal receives the configuration of CSI-RS
After information and CSI-RS, the CSI-RS received is interpreted as to the CSI-RS of 4 ports, and calculate in PMI, CQI and RI
At least one, wherein the corresponding 4 port code books of the PMI.
Alternatively, base station sends the configuration information of CSI-RS to terminal, include in the configuration information indicate the terminal according to
At least one of second method understands CSI-RS, and calculate PMI, CQI and RI, the second method is to be interpreted as CSI-RS
The CSI-RS of 22 ports, the content of calculating include at least one of: the corresponding PMI of the CSI-RS of 2 group of 2 port, connection
The corresponding CQI of CSI-RS of 2 group of 2 port considered is closed, and, the CSI-RS for combining 2 group of 2 port of consideration is corresponding
RI or 2 group of 2 port the corresponding RI of CSI-RS, wherein the corresponding 2 port code books of every PMI.Base station sends one to terminal
The CSI-RS of 4 port, is divided into the CSI-RS of two group of 2 port by the CSI-RS of a 4 port, wherein one group is sent using beam1,
Another set is sent using beam2.After terminal receives the configuration information and CSI-RS of CSI-RS, the CSI- that will receive
RS is interpreted as the CSI-RS of 22 ports, and calculates at least one of: the corresponding PMI of the CSI-RS of 2 group of 2 port, connection
The corresponding CQI of CSI-RS of 2 group of 2 port considered is closed, and, the CSI-RS for combining 2 group of 2 port of consideration is corresponding
RI or 2 group of 2 port the corresponding RI of CSI-RS, wherein the corresponding 2 port code books of every PMI.
Certainly, under two kinds of scenes of above-described embodiment, base station sends the CSI-RS of 4 ports to terminal, can also replace
It is changed to the CSI-RS that base station sends 2 group of 2 port to terminal.
Embodiment three
Referring to FIG. 6, Fig. 6 is the schematic diagram of the application scenarios of the embodiment of the present invention three, it is applied to high frequency in the present embodiment
The transmitting scene of single user Multiple Input Multiple Output (SU-MIMO), there are two aerial panel (panel), terminals to have two for base station tool
1~4 stream is supported in a antenna panel, base station, the different antennae panel of base station using different directions analog beam (beam1 and
Beam2), multithread is supported by not same polarization and different analog beams, in figure, oval representative simulation wave beam is elliptical towards generation
The direction of table wave beam.
In the embodiment of the present invention, base station sends the configuration information of CSI-RS to terminal, includes instruction institute in the configuration information
It states terminal at least one of to understand CSI-RS according to first method, and calculate PMI, CQI and RI, the first method is will
CSI-RS is interpreted as the CSI-RS of 4 ports, wherein the corresponding 4 port code books of the PMI.Base station sends 4 ports to terminal
CSI-RS, two of them port are sent using beam1, and two ports are sent using beam2.Terminal receives the configuration of CSI-RS
After information and CSI-RS, the CSI-RS received is interpreted as to the CSI-RS of 4 ports, and calculate in PMI, CQI and RI
At least one, wherein the corresponding 4 port code books of the PMI.
Alternatively, base station sends the configuration information of CSI-RS to terminal, include in the configuration information indicate the terminal according to
At least one of second method understands CSI-RS, and calculate PMI, CQI and RI, the second method is to be interpreted as CSI-RS
The CSI-RS of 22 ports, the content of calculating include at least one of: the corresponding PMI of the CSI-RS of 2 group of 2 port, connection
The corresponding CQI of CSI-RS of 2 group of 2 port considered is closed, and, the CSI-RS for combining 2 group of 2 port of consideration is corresponding
RI or 2 group of 2 port the corresponding RI of CSI-RS, wherein the corresponding 2 port code books of every PMI.Base station sends one to terminal
The CSI-RS of 4 port, is divided into the CSI-RS of two group of 2 port by the CSI-RS of a 4 port, wherein one group is sent using beam1,
Another set is sent using beam2.After terminal receives the configuration information and CSI-RS of CSI-RS, the CSI- that will receive
RS is interpreted as the CSI-RS of 22 ports, and calculates at least one of: the corresponding PMI of the CSI-RS of 2 group of 2 port, connection
The corresponding CQI of CSI-RS of 2 group of 2 port considered is closed, and, the CSI-RS for combining 2 group of 2 port of consideration is corresponding
RI or 2 group of 2 port the corresponding RI of CSI-RS, wherein the corresponding 2 port code books of every PMI.
Certainly, under two kinds of scenes of above-described embodiment, base station sends the CSI-RS of 4 ports to terminal, can also replace
It is changed to the CSI-RS that base station sends 2 group of 2 port to terminal.
Based on the same inventive concept, referring to FIG. 7, the embodiment of the present invention also provides a kind of base station 70, comprising:
Transmitter 71, the configuration information of the CSI-RS for sending from non-zero power to terminal include: in the configuration information
Indicate that the terminal understands the CSI-RS received according to first method, second method or Third Way；
Wherein, the first method are as follows: the CSI-RS received is interpreted as to the CSI-RS of the port X；
The second method are as follows: the CSI-RS received is interpreted as to the CSI-RS of X/N port of N group；
The Third Way are as follows: the CSI-RS received is interpreted as to X/N port of CSI-RS and N group of the port X respectively
CSI-RS；
X is even number, and N is the positive integer that can be divided exactly by the X.
In the embodiment of the present invention, base station 70 sends the configuration information of the CSI-RS of non-zero power to terminal, described to match confidence
It include the understanding mode of the CSI-RS in breath.The understanding mode for the CSI-RS that terminal can be sent according to base station 70, understands base
Stand 70 CSI-RS sent, to carry out channel measurement, and feeds back at least one of PMI, CQI and RI to base station 70, guarantees
The consistency that base station 70 and terminal understand CSI-RS.
In the embodiment of the present invention, the port, that is, antenna port, it is preferred that the X is 2,4 or 8.Certainly, in the present invention
Some other embodiment in, be also not excluded for X be other even numbers possibility, for example, bigger numerical value, 16 etc..
In the embodiment of the present invention, it is preferable that the N is the number for the wave beam (beam) that base station uses.
In the real-time example of the present invention, it is preferable that base station, can into the configuration information of the CSI-RS for the non-zero power that terminal is sent
To indicate different understanding modes using two bits, for example, indicating to indicate that the terminal is managed according to first method using 00
The CSI-RS that solution receives indicates to indicate that the terminal understands the CSI-RS received according to second method using 01, using 10
It indicates to indicate that the terminal understands the CSI-RS received according to Third Way.And the meaning that above-mentioned bit represents, it can be pre-
First define in the protocol.
Certainly, it in some other embodiment of the invention, is also not excluded for indicating above-mentioned understanding side using other modes
Formula.
In the real-time example of the present invention, the transmitter is also used to send CSI-RS to the terminal.
Specifically, the transmitter can send the CSI-RS of a port X to the terminal；Alternatively, to the terminal
Send the CSI-RS of the port N group X/N.
That is, base station can send CSI-RS by two ways, the flexibility ratio of sending method is improved.
In the embodiment of the present invention, reception is understood according to first method when in the configuration information including: the instruction terminal
When the CSI-RS arrived, in the configuration information further include: indicate that the terminal calculates at least one of PMI, CQI and RI, and
Feed back to the base station；Wherein, the PMI corresponds to the port X code book；
When including: that the instruction terminal understands the CSI-RS received according to second method in the configuration information, institute
It states in configuration information further include: indicate that the terminal calculates the corresponding PMI of CSI-RS of every group of X/N port, combine and examine
The corresponding CQI of CSI-RS for the port N group X/N considered, and, the CSI-RS for combining the port N group X/N of consideration is corresponding
RI or every group of X/N port the corresponding RI of CSI-RS, and feed back to the base station, wherein every PMI corresponds to X/
N-port code book；
When including: that the instruction terminal understands the CSI-RS received according to Third Way in the configuration information, institute
It states in configuration information further include: indicate the terminal respectively according to the CSI-RS of the port X and described X/N port of N group
CSI-RS calculates at least one of PMI, CQI and RI, obtains the first calculated result and the second calculated result, and from described the
One of selection feeds back to the base station in one calculated result and the second calculated result.
In the embodiment of the present invention, the understanding mode of the CSI-RS can be one of three above content, to mention
High base station 70 configures the flexibility ratio of CSI-RS, and guarantees the consistency that base station 70 and terminal understand CSI-RS.
In the embodiment of the present invention, reception is understood according to Third Way when in the configuration information including: the instruction terminal
When the CSI-RS arrived, the configuration information can also include: the instruction terminal with the handling capacity predicted for reference, from described the
One of selection feeds back to the base station in one calculated result and the second calculated result.
That is, when the terminal understands the CSI-RS according to the first method and second method respectively, and calculate PMI,
At least one of CQI and RI obtain the first calculated result being calculated according to the first method and according to described
After the second calculated result that two modes are calculated, it can be reference with preset handling capacity, determine that handling capacity is preferably counted
Calculate as a result, and handling capacity preferably calculated result is fed back into base station, to improve system performance.
In the embodiment of the present invention, the base station 70 can be sent by semi-static or dynamic sending method to the terminal
The configuration information of the CSI-RS, wherein semi-static sending method is generally referred to through wireless heterogeneous networks (Radio
Resource Control, abbreviation RRC) signaling sends the configuration information of the CSI-RS, this kind of sending method to the terminal
It may need several hundred milliseconds that can send once, it is slower to send frequency.Dynamic sending method is generally referred to through L1 or L2
Signaling sends the configuration information of the CSI-RS to the terminal, and it is very fast that this kind of sending method sends frequency.
Base station in the embodiment of the present invention can be global system for mobile telecommunications (Global System of Mobile
Communication, abbreviation GSM) or CDMA (Code Division Multiple Access, abbreviation CDMA) in
Base station (Base Transceiver Station, abbreviation BTS), is also possible to wideband code division multiple access (Wideband Code
Division Multiple Access, abbreviation WCDMA) in base station (NodeB, abbreviation NB), can also be the evolution in LTE
Type base station (Evolutional Node B, abbreviation eNB or eNodeB) perhaps relay station or access point or future 5G network
In base station etc., do not limit herein.
With reference to Fig. 8, the embodiment of the present invention also provides a kind of terminal 80, comprising:
Receiver 81, the configuration information of the CSI-RS of the non-zero power for receiving base station transmission, in the configuration information
It include: that the instruction terminal understands the CSI-RS received according to first method, second method or Third Way；
Wherein, the first method are as follows: the CSI-RS received is interpreted as to the CSI-RS of the port X；
The second method are as follows: the CSI-RS received is interpreted as to the CSI-RS of X/N port of N group；
The Third Way are as follows: the CSI-RS received is interpreted as to X/N port of CSI-RS and N group of the port X respectively
CSI-RS；
X is even number, and N is the positive integer that can be divided exactly by the X.
In the embodiment of the present invention, terminal 80 receives the configuration information of the CSI-RS for the non-zero power that base station is sent, described to match
Include the understanding mode of the CSI-RS in confidence breath, according to the understanding mode for the CSI-RS that base station is sent, understands that base station is sent
CSI-RS guarantee base station and terminal to carry out channel measurement, and at least one of base station feedback PMI, CQI and RI
The consistency that 80 couples of CSI-RS understand.
In the embodiment of the present invention, the port, that is, antenna port, it is preferred that the X is 2,4 or 8.Certainly, in the present invention
Some other embodiment in, be also not excluded for X be other even numbers possibility, for example, bigger numerical value, 16 etc..
In the embodiment of the present invention, it is preferable that the N is the number for the wave beam (beam) that base station uses.
In the real-time example of the present invention, it is preferable that base station, can into the configuration information of the CSI-RS for the non-zero power that terminal is sent
To indicate different understanding modes using two bits, for example, indicating to indicate that the terminal is managed according to first method using 00
The CSI-RS that solution receives indicates to indicate that the terminal understands the CSI-RS received according to second method using 01, using 10
It indicates to indicate that the terminal understands the CSI-RS received according to Third Way.And the meaning that above-mentioned bit represents, it can be pre-
First define in the protocol.
Certainly, it in some other embodiment of the invention, is also not excluded for indicating above-mentioned understanding side using other modes
Formula.
In the embodiment of the present invention, reception is understood according to first method when in the configuration information including: the instruction terminal
When the CSI-RS arrived, in the configuration information further include: indicate that the terminal calculates at least one of PMI, CQI and RI, and
Feed back to the base station；Wherein, the PMI corresponds to the port X code book；
When including: that the instruction terminal understands the CSI-RS received according to second method in the configuration information, institute
It states in configuration information further include: indicate that the terminal calculates the corresponding PMI of CSI-RS of every group of X/N port, combine and examine
The corresponding CQI of CSI-RS for the port N group X/N considered, and, the CSI-RS for combining the port N group X/N of consideration is corresponding
RI or every group of X/N port the corresponding RI of CSI-RS, and feed back to the base station, wherein every PMI corresponds to X/
N-port code book；
When including: that the instruction terminal understands the CSI-RS received according to Third Way in the configuration information, institute
It states in configuration information further include: indicate the terminal respectively according to the CSI-RS of the port X and described X/N port of N group
CSI-RS calculates at least one of PMI, CQI and RI, obtains the first calculated result and the second calculated result, and from described the
One of selection feeds back to the base station in one calculated result and the second calculated result.
In the embodiment of the present invention, the understanding mode of the CSI-RS can be one of three above content, to mention
The flexibility ratio of high base station configuration CSI-RS, and guarantee the consistency that base station and terminal understand CSI-RS.
In the embodiment of the present invention, reception is understood according to Third Way when in the configuration information including: the instruction terminal
When the CSI-RS arrived, the configuration information can also include: the instruction terminal with the handling capacity predicted for reference, from described the
One of selection feeds back to the base station in one calculated result and the second calculated result.
That is, when the terminal understands the CSI-RS according to the first method and second method respectively, and calculate PMI,
At least one of CQI and RI obtain the first calculated result being calculated according to the first method and according to described
After the second calculated result that two modes are calculated, it can be reference with preset handling capacity, determine that handling capacity is preferably counted
Calculate as a result, and handling capacity preferably calculated result is fed back into base station, to improve system performance.
In the embodiment of the present invention, terminal reception base station is sent described by semi-static or dynamic sending method
The configuration information of CSI-RS, wherein semi-static sending method is generally referred to through wireless heterogeneous networks (Radio Resource
Control, abbreviation RRC) signaling sends the configuration information of the CSI-RS to the terminal, and this kind of sending method may need several
Hundred milliseconds can send once, and it is slower to send frequency.Dynamic sending method is generally referred to through L1 or L2 signaling to described
Terminal sends the configuration information of the CSI-RS, and it is very fast that this kind of sending method sends frequency.
In the embodiment of the present invention, the receiver is also used to receive the CSI-RS that the base station is sent.
In the embodiment of the present invention, the terminal can also include:
Processor for understanding the CSI-RS received according to the configuration information, and calculates in PMI, CQI and RI extremely
It is one of few；
Transmitter, at least one of PMI, CQI and RI for being calculated to be reported to the base station.
In the embodiment of the present invention, reception is understood according to Third Way when in the configuration information including: the instruction terminal
When the CSI-RS arrived,
The processor, for respectively according to the CSI-RS of the CSI-RS of the port X and described X/N port of N group, meter
At least one of PMI, CQI and RI are calculated, obtains the first calculated result and the second calculated result, and from first calculated result
With one of selection in the second calculated result；
The transmitter, the calculated result for selecting the processor is reported to base station, and reports feedback to base station
Calculated result it is corresponding be the CSI-RS of the port the X or CSI-RS of described X/N port of N group so that base station
It can understand the corresponding understanding mode of calculated result that terminal reports.
Terminal in the embodiment of the present invention can be wireless terminal and be also possible to catv terminal, and wireless terminal can be directed to
User provides voice and/or the equipment of other business datum connectivity, handheld device or connection with wireless connecting function
To other processing equipments of radio modem.Wireless terminal can through wireless access network (Radio Access Network,
Abbreviation RAN) it is communicated with one or more core nets, wireless terminal can be mobile terminal, as mobile phone (or is
" honeycomb " phone) and computer with mobile terminal, for example, it may be portable, pocket, hand-held, built-in computer
Or vehicle-mounted mobile device, they exchange language and/or data with wireless access network.For example, personal communication service
(Personal Communication Service, abbreviation PCS) phone, wireless phone, Session initiation Protocol (Session
Initiation Protocol, abbreviation SIP) phone, wireless local loop (Wireless Local Loop, abbreviation WLL) stand,
The equipment such as personal digital assistant (Personal Digital Assistant, abbreviation PDA).Wireless terminal is referred to as
System, subscriber unit (Subscriber Unit), subscriber station (Subscriber Station), movement station (Mobile
Station), mobile station (Mobile), distant station (Remote Station), remote terminal (Remote Terminal), access
Terminal (Access Terminal), user terminal (User Terminal), user agent (User Agent), terminal (User
Device or User Equipment), it is not limited thereto.
The embodiment of the present invention also provides a kind of base station, including memory, processor and is stored on the memory and can
The computer program run on the processor；The processor realizes above-mentioned channel state information when executing described program
Configuration method.
The embodiment of the present invention also provides a kind of terminal, including memory, processor and is stored on the memory and can
The computer program run on the processor；It is characterized in that, the processor realizes above-mentioned letter when executing described program
The feedback method of channel state information.
The embodiment of the present invention also provides a kind of computer readable storage medium, is stored thereon with computer program, the program
The step in the configuration method of above-mentioned channel state information is realized when being executed by processor.
The embodiment of the present invention also provides a kind of computer readable storage medium, is stored thereon with computer program, the program
The step in the feedback method of above-mentioned channel state information is realized when being executed by processor.
Above-mentioned computer-readable medium includes permanent and non-permanent, removable and non-removable media can be by any
Method or technique come realize information store.Information can be computer readable instructions, data structure, the module of program or other numbers
According to.The example of the storage medium of computer includes, but are not limited to phase change memory (PRAM), static random access memory
(SRAM), dynamic random access memory (DRAM), other kinds of random access memory (RAM), read-only memory
(ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory techniques, CD-ROM are read-only
Memory (CD-ROM), digital versatile disc (DVD) or other optical storage, magnetic cassettes, tape magnetic disk storage or
Other magnetic storage devices or any other non-transmission medium, can be used for storage can be accessed by a computing device information.
The above is a preferred embodiment of the present invention, it is noted that for those skilled in the art
For, without departing from the principles of the present invention, it can also make several improvements and retouch, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (18)
1. a kind of configuration method of channel state information is applied to base station characterized by comprising
The configuration information of the channel state information reference signals CSI-RS of non-zero power is sent to terminal, is wrapped in the configuration information
It includes: indicating that the terminal understands the CSI-RS received according to first method, second method or Third Way；
Wherein, the first method are as follows: the CSI-RS received is interpreted as to the CSI-RS of the port X；
The second method are as follows: the CSI-RS received is interpreted as to the CSI-RS of X/N port of N group；
The Third Way are as follows: the CSI-RS received is interpreted as X/N port of CSI-RS and N group of the port X respectively
CSI-RS；
X is even number, and N is the positive integer that can be divided exactly by the X.
2. the configuration method of channel state information according to claim 1, which is characterized in that
It is described to match when including: that the instruction terminal understands the CSI-RS received according to first method in the configuration information
In confidence breath further include: indicate that the terminal calculates in pre-coding matrix instruction PMI, channel quality indicator (CQI) and order instruction RI
At least one of, and feed back to the base station；Wherein, the PMI corresponds to the port X code book；
It is described to match when including: that the instruction terminal understands the CSI-RS received according to second method in the configuration information
In confidence breath further include: indicate that the terminal calculates the corresponding PMI of CSI-RS of every group of X/N port, combine consideration
The corresponding CQI of CSI-RS of the port N group X/N, and, combine the corresponding RI of CSI-RS of the port N group X/N of consideration
Or the corresponding RI of CSI-RS of every group of X/N port, and feeding back to the base station, wherein every PMI corresponds to the end X/N
Mouth code book；
It is described to match when including: that the instruction terminal understands the CSI-RS received according to Third Way in the configuration information
In confidence breath further include: indicate the terminal respectively according to the CSI- of the CSI-RS of the port X and described X/N port of N group
RS calculates at least one of PMI, CQI and RI, obtains the first calculated result and the second calculated result, and count from described first
It calculates one of selection in result and the second calculated result and feeds back to the base station.
3. the configuration method of channel state information according to claim 1, which is characterized in that described to send non-zero to terminal
After the step of configuration information of the CSI-RS of power further include:
CSI-RS is sent to the terminal.
4. the configuration method of channel state information according to claim 1-3, which is characterized in that the N is institute
State the number of the wave beam of base station use.
5. a kind of feedback method of channel state information is applied to terminal characterized by comprising
The configuration information of the CSI-RS for the non-zero power that base station is sent is received, includes: the instruction terminal in the configuration information
The CSI-RS received is understood according to first method, second method or Third Way；
Wherein, the first method are as follows: the CSI-RS received is interpreted as to the CSI-RS of the port X；
The second method are as follows: the CSI-RS received is interpreted as to the CSI-RS of X/N port of N group；
The Third Way are as follows: the CSI-RS received is interpreted as X/N port of CSI-RS and N group of the port X respectively
CSI-RS；
X is even number, and N is the positive integer that can be divided exactly by the X.
6. the feedback method of channel state information according to claim 5, which is characterized in that
It is described to match when including: that the instruction terminal understands the CSI-RS received according to first method in the configuration information
In confidence breath further include: indicate that the terminal calculates in pre-coding matrix instruction PMI, channel quality indicator (CQI) and order instruction RI
At least one of, and feed back to the base station；Wherein, the PMI corresponds to the port X code book；
It is described to match when including: that the instruction terminal understands the CSI-RS received according to second method in the configuration information
In confidence breath further include: indicate that the terminal calculates the corresponding PMI of CSI-RS of every group of X/N port, combine consideration
The corresponding CQI of CSI-RS of the port N group X/N, and, combine the corresponding RI of CSI-RS of the port N group X/N of consideration
Or the corresponding RI of CSI-RS of every group of X/N port, and feeding back to the base station, wherein every PMI corresponds to the end X/N
Mouth code book；
It is described to match when including: that the instruction terminal understands the CSI-RS received according to Third Way in the configuration information
In confidence breath further include: indicate the terminal respectively according to the CSI- of the CSI-RS of the port X and described X/N port of N group
RS calculates at least one of PMI, CQI and RI, obtains the first calculated result and the second calculated result, and count from described first
It calculates one of selection in result and the second calculated result and feeds back to the base station.
7. the feedback method of channel state information according to claim 6, which is characterized in that described to receive the base station hair
After the step of CSI-RS sent further include:
At least one of understand the CSI-RS received according to the configuration information, and calculate PMI, CQI and RI, it will calculate
To at least one of PMI, CQI and RI be reported to the base station.
8. according to the feedback method of the described in any item channel state informations of claim 5-7, which is characterized in that the N is institute
State the number of the wave beam of base station use.
9. the feedback method of channel state information according to claim 7, which is characterized in that wrapped when in the configuration information
It includes: described that reception is understood according to the configuration information when indicating that the terminal understands the CSI-RS received according to Third Way
At least one of the CSI-RS arrived, and calculate PMI, CQI and RI, by least one of PMI, CQI and RI for being calculated
The step of being reported to the base station include:
Respectively according to the CSI-RS of the CSI-RS of the port X and described X/N port of N group, calculate in PMI, CQI and RI extremely
It is one of few, the first calculated result and the second calculated result are obtained, and select from first calculated result and the second calculated result
It selects one of them and feeds back to the base station；
To the base station report the calculated result of feedback it is corresponding be the port X CSI-RS or described X/N port of N group
CSI-RS.
10. a kind of base station characterized by comprising
Transmitter includes: instruction institute in the configuration information for the configuration information of from the CSI-RS to terminal transmission non-zero power
It states terminal and understands the CSI-RS received according to first method, second method or Third Way；
Wherein, the first method are as follows: the CSI-RS received is interpreted as to the CSI-RS of the port X；
The second method are as follows: the CSI-RS received is interpreted as to the CSI-RS of X/N port of N group；
The Third Way are as follows: the CSI-RS received is interpreted as X/N port of CSI-RS and N group of the port X respectively
CSI-RS；
X is even number, and N is the positive integer that can be divided exactly by the X.
11. base station described in any one of claim 10, which is characterized in that
It is described to match when including: that the instruction terminal understands the CSI-RS received according to first method in the configuration information
In confidence breath further include: indicate that the terminal calculates at least one of PMI, CQI and RI, and feed back to the base station；Wherein,
The PMI corresponds to the port X code book；
It is described to match when including: that the instruction terminal understands the CSI-RS received according to second method in the configuration information
In confidence breath further include: indicate that the terminal calculates the corresponding PMI of CSI-RS of every group of X/N port, combine consideration
The corresponding CQI of CSI-RS of the port N group X/N, and, combine the corresponding RI of CSI-RS of the port N group X/N of consideration
Or the corresponding RI of CSI-RS of every group of X/N port, and feeding back to the base station, wherein every PMI corresponds to the end X/N
Mouth code book；
It is described to match when including: that the instruction terminal understands the CSI-RS received according to Third Way in the configuration information
In confidence breath further include: indicate the terminal respectively according to the CSI- of the CSI-RS of the port X and described X/N port of N group
RS calculates at least one of PMI, CQI and RI, obtains the first calculated result and the second calculated result, and count from described first
It calculates one of selection in result and the second calculated result and feeds back to the base station.
12. a kind of terminal characterized by comprising
Receiver, the configuration information of the CSI-RS of the non-zero power for receiving base station transmission, includes: to refer in the configuration information
Show that the terminal understands the CSI-RS received according to first method, second method or Third Way；
Wherein, the first method are as follows: the CSI-RS received is interpreted as to the CSI-RS of the port X；
The second method are as follows: the CSI-RS received is interpreted as to the CSI-RS of X/N port of N group；
The Third Way are as follows: the CSI-RS received is interpreted as X/N port of CSI-RS and N group of the port X respectively
CSI-RS；
X is even number, and N is the positive integer that can be divided exactly by the X.
13. terminal according to claim 12, which is characterized in that
It is described to match when including: that the instruction terminal understands the CSI-RS received according to first method in the configuration information
In confidence breath further include: indicate that the terminal calculates in pre-coding matrix instruction PMI, channel quality indicator (CQI) and order instruction RI
At least one of, and feed back to the base station；Wherein, the PMI corresponds to the port X code book；
It is described to match when including: that the instruction terminal understands the CSI-RS received according to second method in the configuration information
In confidence breath further include: indicate that the terminal calculates the corresponding PMI of CSI-RS of every group of X/N port, combine consideration
The corresponding CQI of CSI-RS of the port N group X/N, and, combine the corresponding RI of CSI-RS of the port N group X/N of consideration
Or the corresponding RI of CSI-RS of every group of X/N port, and feeding back to the base station, wherein every PMI corresponds to the end X/N
Mouth code book；
It is described to match when including: that the instruction terminal understands the CSI-RS received according to Third Way in the configuration information
In confidence breath further include: indicate the terminal respectively according to the CSI- of the CSI-RS of the port X and described X/N port of N group
RS calculates at least one of PMI, CQI and RI, obtains the first calculated result and the second calculated result, and count from described first
It calculates one of selection in result and the second calculated result and feeds back to the base station.
14. terminal according to claim 13, which is characterized in that further include:
Processor, for understanding the CSI-RS that receives according to the configuration information, and calculate in PMI, CQI and RI at least it
One；
Transmitter, at least one of PMI, CQI and RI for being calculated to be reported to the base station.
15. terminal according to claim 14, which is characterized in that when including: the instruction terminal in the configuration information
When understanding the CSI-RS received according to Third Way,
The processor, for according to the CSI-RS of the CSI-RS of the port X and described X/N port of N group, calculating respectively
At least one of PMI, CQI and RI, obtain the first calculated result and the second calculated result, and from first calculated result and
One of selection in second calculated result；
The transmitter, the calculated result for selecting the processor is reported to the base station, and reports to the base station
The corresponding calculated result of feedback is the CSI-RS of the port the X or CSI-RS of described X/N port of N group.
16. a kind of base station, including memory, processor and it is stored on the memory and can runs on the processor
Computer program；It is characterized in that, the processor is realized when executing described program as Claims 1 to 4 is described in any item
The configuration method of channel state information.
17. a kind of terminal, including memory, processor and it is stored on the memory and can runs on the processor
Computer program；It is characterized in that, the processor is realized when executing described program as claim 5~9 is described in any item
The feedback method of channel state information.
18. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that the program is by processor
The step in the configuration method such as the described in any item channel state informations of Claims 1 to 4 is realized when execution, alternatively, the journey
The step in the feedback method such as the described in any item channel state informations of claim 5~9 is realized when sequence is executed by processor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810039647.3A CN110048820B (en) | 2018-01-16 | 2018-01-16 | Configuration method, feedback method and device of channel state information |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810039647.3A CN110048820B (en) | 2018-01-16 | 2018-01-16 | Configuration method, feedback method and device of channel state information |
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