CN102255689B - A kind of processing method of channel condition information, apparatus and system - Google Patents
A kind of processing method of channel condition information, apparatus and system Download PDFInfo
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- CN102255689B CN102255689B CN201110191467.5A CN201110191467A CN102255689B CN 102255689 B CN102255689 B CN 102255689B CN 201110191467 A CN201110191467 A CN 201110191467A CN 102255689 B CN102255689 B CN 102255689B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
- H04L1/0026—Transmission of channel quality indication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
Abstract
The invention discloses a kind of processing method of channel condition information, apparatus and system, overcome in the prior art UE can not adapt to different sending nodes in transmit power have larger difference caused by CSI accuracys rate it is relatively low the defects of, wherein the processing method is applied in user equipment (UE) side, including：High-rise configuration signal is received, the high level configuration signal includes multiple power informations corresponding to channel condition information reference symbol (CSI RS) port subset；Channel measurement is carried out using the CSI RS, obtains measurement result；Channel condition information (CSI) is determined using the measurement result and the power information and is reported.The embodiment of the present invention solves the problems, such as that CSI accuracys rate are relatively low caused by UE can not adapt to different sending nodes diversity ratio is larger in transmit power in the prior art, avoids suffering from this and reduces system performance.
Description
Technical field
The present invention relates to the communications field, in particular in a kind of distributing antenna system or cooperative transmission system
The processing method of channel condition information (Channel State Information, referred to as CSI), apparatus and system.
Background technology
In wireless communication technique, base station side (such as node B, that is, eNodeB, abbreviation eNB of evolution) uses more antennas
When sending data, the mode of spatial reuse can be taken to improve message transmission rate.Identical time-frequency is used in transmitting terminal
Resource launches different data in different aerial positions, and receiving terminal (such as user equipment (UE)) also receives number using more antennas
According to.
The resource of all antennas is distributed on same user in the case of single user, this user is in a transmission intercal
Inside occupy the physical resource for distributing to base station side alone, this transmission mode is known as single user multiple-input, multiple-output (Single User
Multiple-Input Multiple-Out-put, referred to as SU-MIMO)；By the sky of different antennae in the case of multi-user
Between resource allocation to different user, a user and at least one other user distribute the sharing base side in a transmission intercal
Physical resource, sharing mode can be space division multiple access mode or space division multiplexing mode, and this transmission mode is known as multi-user
Multiple-input, multiple-output (Multiple User Multiple-Input Multiple-Out-put, abbreviation MU-MIMO), wherein base station
The physical resource of side distribution refers to running time-frequency resource.
If Transmission system will support SU-MIMO and MU-MIMO at the same time, eNB needs to provide under both patterns to UE
Data.UE is both needed to know orders of the eNB used in for UE transmission MIMO data in SU-MIMO patterns or MU-MIMO patterns
(Rank)。
Under SU-MIMO patterns, the resource of all antennas is distributed on same user, transmits the number of plies used in MIMO data
ENB is equal in the order used in transmission MIMO data；Under MU-MIMO patterns, the corresponding user transmission number of plies used is few
In total number of plies of eNB transmission MIMO data, if to carry out SU-MIMO patterns and the switching of MU-MIMO, eNB is needed in difference
Transmission mode sends a notice control data different UE.
In long evolving system (LTE：Long Term Evolution) in, the information of reflection down physical channel state
(CSI：Channel State Information) include 3 partial contents：Channel quality indicates (CQI：Channels
Quality indication), pre-coding matrix instruction (PMI：Pre-coding Matrix Indicator), order instruction
(RI：Rank Indicator).
CQI is an index for weighing down channel quality quality.In 36-213 agreements CQI with 0~15 integer value
To represent, different CQI grades are represented respectively.Different CQI correspond to respective modulation system and encoder bit rate (MCS), altogether
Divide 16 kinds of situations, can be represented using 4 bit informations, as shown in table 1：
Relation between 1 CQI indexes of table and MCS
CQI is an important indicator for weighing transmission, and what it was characterized is to employ RI values as the transmission number of plies, Yi Jixuan
When the code word indicated with the PMI reported is as precoding, the transmission of MIMO closed loop precodings is carried out according to mode as defined in agreement
When channel quality.Therefore, CQI cannot exist independently of RI and PMI.
With the proposition of LTE-A demands, people are increasingly heavier to node average spectral efficiency (ase) and node edge spectrum efficiency
Depending on.Comparatively speaking, the spectrum efficiency of node edge is most paid close attention to by people, this is primarily due to the uplink and downlink of lte-a system all
It is with Orthogonal Frequency Division Multiplexing (Orthogonal Frequency Division Multiplexing, OFDM), or with OFDM
Certain be deformed into the frequency division systems of basic multiple access multiplexing mode, with traditional with CDMA (Code Division
Multiple Access, CDMA) it is different for the wireless communication system of basic multiple access multiplexing mode, lte-a system does not handle increasing
Benefit, intra-node is because complete frequency division is orthogonal, and almost without interference problem, but the interference processing at node edge is opposite
It is intractable.
Mainly there are following three kinds of methods to the processing disturbed at node edge in LTE at present：
(1) interference randomization；
(2) interference eliminates；
(3) interference coordination (hiding).
The method of interference randomization generally uses frequency hopping, and during jump, the method for direct expansion or frame hopping mitigates dry among the nodes
The influence disturbed, it the advantages of be without the network planning, with little need for the support of signaling, but can only say and alleviate interference, and
It is not inherently eliminated.
Although interference elimination method can use some algorithms to eliminate interference, extra physical entity is generally required,
Such as multi-antenna technology, could complete the relatively good elimination of interference, these conditions may and be unsatisfactory for sometimes.
The method of interference coordination (hiding) is by some information between switching node, uses some algorithms so that each saving
Point selects suitable resource to be transmitted automatically according to the feedback information of other nodes and the situation of itself, so as to fulfill between node
The efficient utilization of resource, and mitigate the chance that resource collision between node utilizes as far as possible, the lifting of node edge performance is finally reached,
It emphasizes that the identical running time-frequency resource of contention is so as to interfere between avoiding the occurrence of node as far as possible.
Since the antenna distance of the multiple adjacent nodes of node edge user distance is not much different, multiple nodes are utilized
To realize, the higher capacity of Radio Link and transmitting just become research emphasis to transmitting antenna at node edge.
Multipoint cooperative (Coordinated Multiple Points transmission and reception,
CoMP) in transmission, the CoMP process flows of the prior art are：Network side configures measuring assembly, and terminal is carried out according to measuring assembly
Reference Signal Received Power (Reference Signal Received Power, RSRP) or Reference Signal Received Quality
(Reference Signal Received Quality, RSRQ) or received signal strength indicator (Received Signal
Strength Indicator, RSSI) measurement and obtain measurement result.It is true by network side or terminal based on the measurement result
Determine multipoint cooperative measuring assembly；And measurement and the feedback of channel status are carried out based on definite multipoint cooperative measuring assembly.
In R11, there is a kind of typical scene in CoMP/MIMO：For specific UE, different cooperation in the measuring assembly that cooperates
Node has identical cell ID, and the large scale decline difference of different cooperative nodes to the UE is bigger, this phenomenon attribution
Different in different transmission nodes (TP) transmit power attribute, some nodes are high power nodes, some nodes are low power nodes.
Existing feedback technique includes two kinds, and one kind is to be directed to carry out information feedback per node disjoint, separately
One kind is the feedback for the channel condition information that global (Global) is carried out for all nodes, wherein channel condition information here
Including：Channel quality indicates (Channel Quality Indicator, CQI), pre-coding matrix instruction (Precoding
Matrix Indicator, PMI) and order instruction (Rank Indicator, RI).Note that transmission node (TP) can also claim
For sending node, transmission node of the present invention can be macrocell (Macro cell), relay station (relay), Microcell
(pico cell) or picocell (femto cell) or Home eNodeB Home (e) NodeB etc..
The typical scene is it can be appreciated that a kind of distributed multi-antenna system (DAS), the distributed multi-antenna
System is a kind of non-homogeneous or non-unified network (heterogeneous network), including a macro station Marco and multiple far end radio frequency head RRH
(or remote radio unit (RRU) RRU), these sending nodes share identical Cell ID.UE can receive Marco's and RRH
Signal, it is expected that Macro and RRH carries out cooperation transmission.Above-mentioned cooperation sends node-node transmission scene more, in order to obtain more preferable property
Can be, it is necessary to support the feedback of Global.
In R10, the CSI-RS feedbacks of UE specific are supported, that is, has supported and gives UE self-defined CSI-RS ends
Mouthful, understand from another angle and support self-defined feedback set.So configuration one is supported at present in DAS system
The CSI-RS of set Global can carry out the CSI feedback of Global to UE, UE.It should be noted that the transmission power of Macro and RRH
May be different, it is general receive power difference be likely to be breached 6 decibels (dB) in addition more than.So existing feedback technique is not because
Support spaced antenna to support scene similar in transmit power, be difficult effectively to work under new scene.
In distributing antenna system or cooperative multicast system, UE is carried out in CSI determination process, is joined using offset
Measure unified parameter so that terminal can not adapt to different sending nodes has a case that larger difference in transmit power, leads
CSI accuracys rate are caused finally seriously to reduce the performance of system than relatively low.
The content of the invention
The technical problems to be solved by the invention be overcome in the prior art UE can not adapt to different sending nodes and sending
On power have larger difference caused by CSI accuracys rate it is relatively low the defects of.
In order to solve the above-mentioned technical problem, present invention firstly provides a kind of processing method of channel condition information, application
In user equipment (UE) side, this method includes：
High-rise configuration signal is received, the high level configuration signal corresponds to channel condition information-reference symbol including multiple
(CSI-RS) power information of port subset；
Channel measurement is carried out using the CSI-RS, obtains measurement result；
Channel condition information (CSI) is determined using the measurement result and the power information and is reported.
Preferably, the power information includes downlink data and each resource element energy (EPRE) of reference signal is compared
Value.
Preferably, institute's downlink data includes downlink physical Data Shared Channel (PDSCH)；The reference signal includes described
CSI-RS。
Preferably, the power information includes each resource element energy of a reference signal and another reference signal
(EPRE) ratio.
Preferably, the power information includes a CSI-RS port subsets reference signal and another CSI-RS port
Collect each resource element energy (EPRE) ratio of reference signal.
Preferably, the power information includes a CSI-RS port subsets reference signal and public reference signal (CRS)
Each resource element energy (EPRE) ratio.
Preferably for the UE, the CSI-RS port subsets are by all N number of in the configuration of a CSI-RS
M subset of the set that CSI-RS ports are formed；
Wherein, N is greater than 1 positive integer, and m is greater than 1 positive integer, and m is less than or equal to N, and complete without two subsets
It is identical.
Preferably, CSI-RS port subsets described in any two do not include identical element, and all CSI-RS ends
The sum of quantity of element that openning collection is included is equal to N.
Preferably, the power information of the CSI-RS port subsets, has one for each CSI-RS port subset
Or multiple corresponding power offset informations.
Preferably, the power information of the CSI-RS port subsets, it is the multiple for each CSI-RS port subset
Corresponding power offset information includes the power offset information of corresponding space order (RI).
Preferably, the value of the power offset information of each CSI-RS port subsets is identical or different.
Preferably, the value range of the power offset information of each CSI-RS port subsets is identical or different.
Preferably, a CSI-RS port subset, corresponds in distributing antenna system or cooperative multicast system
A transmission node, or multiple transmission nodes in corresponding distributing antenna system or cooperative multicast system.
Present invention also offers a kind of processing method of channel condition information, including：
Multiple work(corresponding to channel condition information-reference symbol (CSI-RS) port subset in the high-rise configuration signal of configuration
Rate information；
Send the high-rise configuration signal for carrying the power information；
Receiving channel state information (CSI)；
Wherein, the measurement result and power information institute that the CSI is obtained by user equipment according to channel measurement are true
It is fixed.
Preferably, the power information includes downlink data and each resource element energy (EPRE) of reference signal is compared
Value.
Preferably, institute's downlink data includes downlink physical Data Shared Channel (PDSCH)；
The reference signal includes the CSI-RS.
Preferably, the power information includes each resource element energy of a reference signal and another reference signal
(EPRE) ratio.
Preferably, the power information includes a CSI-RS port subsets reference signal and another CSI-RS port
Collect each resource element energy (EPRE) ratio of reference signal.
Preferably, the power information includes a CSI-RS port subsets reference signal and public reference signal (CRS)
Each resource element energy (EPRE) ratio.
Preferably, it is identical corresponding to the value of the power information of one or more CSI-RS port subset.
Preferably, it is identical corresponding to the value range of the power information of one or more CSI-RS port subset.
Present invention also offers a kind of processing unit of channel condition information, including：
First receiving module, for receiving high-rise configuration signal, the high level configuration signal corresponds to channel including multiple
The power information of status information-reference symbol (CSI-RS) port subset；
Measurement module, for carrying out channel measurement using the CSI-RS, obtains measurement result；
Determining module, for determining channel condition information (CSI) using the measurement result and the power information；
Reporting module, for reporting the CSI.
Present invention also offers a kind of processing unit of channel condition information, including：
Configuration module, multiple in high-rise configuration signal corresponds to channel condition information-reference symbol (CSI- for configuring
RS) the power information of port subset；
Sending module, the high-rise configuration signal of the power information is carried for sending；
Second receiving module, for receiving channel state information (CSI),
Wherein, the measurement result and power information institute that the CSI is obtained by user equipment according to channel measurement are true
It is fixed.
Present invention also offers a kind of processing system of channel condition information, including foregoing two kinds of processing units,
Wherein：
First receiving module is used to receive the high-rise configuration signal that the sending module is sent；
Second receiving module is used to receive the CSI that the reporting module reports.
Compared with prior art, technical scheme can be applied to distributing antenna system or coordinate multipoint passes
Defeated system, the embodiment of the present invention, which solves UE in the prior art, can not adapt to different sending nodes diversity ratio in transmit power
The problem of CSI accuracys rate are relatively low caused by larger, avoids suffering from this and reduces system performance.
Other features and advantages of the present invention will be illustrated in the following description, also, partly becomes from specification
Obtain it is clear that or being understood by implementing the present invention.The purpose of the present invention and other advantages can be by specification, rights
Specifically noted structure is realized and obtained in claim and attached drawing.
Brief description of the drawings
Attached drawing is used for providing further understanding technical solution of the present invention, and a part for constitution instruction, with this
The embodiment of invention is used to explain technical scheme together, does not form the limitation to technical solution of the present invention.Attached
In figure：
Fig. 1 is the flow diagram of the CSI processing methods of the embodiment of the present invention.
Fig. 2 is the flow diagram of another CSI processing methods of the embodiment of the present invention.
Fig. 3 is the structure diagram of the CSI processing units of the embodiment of the present invention.
Fig. 4 is the structure diagram of another CSI processing units of the embodiment of the present invention.
Embodiment
Carry out the embodiment that the present invention will be described in detail below with reference to accompanying drawings and embodiments, how the present invention is applied whereby
Technological means solves technical problem, and that reaches technique effect realizes that process can fully understand and implement according to this.
First, if do not conflicted, each feature in the embodiment of the present invention and embodiment is not under the premise of colliding
It is combined with each other, within protection scope of the present invention.In addition, step shown in the flowchart of the accompanying drawings can be at such as one group
Performed in the computer system of computer executable instructions, although also, show logical order in flow charts, at certain
, can be with the steps shown or described are performed in an order that is different from the one herein in the case of a little.
The embodiment provides a kind of CSI processing methods, as shown in Figure 1, it mainly includes the following steps：
Step S110, UE receive high-rise configuration signal, wherein, high-rise configuration signal, which includes multiple channel status that correspond to, to be believed
The power information of breath-reference symbol (CSI-RS) port subset；
Step S120, UE carry out channel measurement using the channel condition information-reference symbol (CSI-RS) received, obtain
Measurement result；
The measurement result and the power information of CSI-RS port subsets that step S130, UE are obtained using channel measurement determine
CSI simultaneously reports CSI.
Above-mentioned power information includes downlink data and each resource element energy (EPRE) ratio of reference signal, such as
Each resource element energy (EPRE) of downlink physical Data Shared Channel (PDSCH) and the ratio p-C of the EPRE of CSI-RS.
Alternatively, above-mentioned power information includes each resource element energy of a reference signal and another reference signal
(EPRE) ratio.Such as 1：The power information includes a CSI-RS port subsets reference signal and another CSI-RS port
Each resource element energy (EPRE) ratio of subset reference signal；Such as 2：The power information includes CSI ports
Collect CSI-RS reference signals and each resource element energy (EPRE) ratio of public reference signal CRS.
Alternatively, above-mentioned power information includes, there are multiple corresponding power inclined for each CSI-RS port subset
Move information.Such as：The multiple corresponding power offset information includes the power offset information of corresponding space order (RI).
For the UE, CSI-RS port subsets are by all N number of CSI-RS ports in the configuration of a CSI-RS
M subset of the set of composition.Wherein, N is greater than 1 positive integer, and m is greater than 1 positive integer, and m is less than or equal to N；Also, not yet
It is identical to have two subsets.
Further, above-mentioned CSI-RS port subsets are by N number of CSI- all in the CSI-RS configurations of the UE
M set obtained by the division of RS ports.
Also, can be that any two CSI-RS port subsets do not include identical element in the embodiment of the present invention, and
The sum of quantity of element that all CSI-RS port subsets are included is equal to N.
Wherein, N0A CSI-RS ports form the first CSI-RS port subset CouncilforScientificandIndustrialResearch SSubSet0, N1A CSI-RS ports structure
Into the 2nd CSI-RS port subset CouncilforScientificandIndustrialResearch SSubSet1..., and so on, Nm-1A port forms m CSI-RS ports
Subset CouncilforScientificandIndustrialResearch SSubSetm-1。
The power information of CSI-RS port subsets, can include the power offset information of CSI-RS port subsets.
Wherein, for the first CSI-RS port subset CouncilforScientificandIndustrialResearch SSubSet0, power offset informationFor second
CSI-RS port subset CouncilforScientificandIndustrialResearch SSubSet1, power offset information......；And so on, for m CSI-RS
Port subset CouncilforScientificandIndustrialResearch SSubSetm-1, power offset information Wherein, a0, a1..., am-1It is real number.
Wherein, a0, a1..., am-1Value can be it is identical can also be different.
Wherein, a0, a1..., am-1Value range can be it is identical can also be different.
M values can be 2, and all CSI-RS ports for being allocated to the UE are divided into two set, i.e. the first CSI-RS
Port subset CouncilforScientificandIndustrialResearch SSubSet0With the 2nd CSI-RS port subset CouncilforScientificandIndustrialResearch S SubSet1。
Wherein, for the first CSI-RS port subset CouncilforScientificandIndustrialResearch SSubSet0, power offset informationFor second
CSI-RS port subset CouncilforScientificandIndustrialResearch SSubSet1, power offset informationWherein, a0And a1It is real number.
M values can be 3, and all CSI-RS ports for being allocated to the UE are divided into three set, i.e. the first CSI-RS
Port subset CouncilforScientificandIndustrialResearch SSubSet0, the 2nd CSI-RS port subset CouncilforScientificandIndustrialResearch SSubSet1With the 3rd CSI-RS port subsets
CSIRSSubSet2。
Wherein, for the first CSI-RS port subset CouncilforScientificandIndustrialResearch SSubSet0, power offset informationFor second
CSI-RS port subset CouncilforScientificandIndustrialResearch SSubSet1, power offset informationFor the 3rd CSI-RS port subsets
CSIRSSubSet2, power offset informationFor wherein, a0, a1And a2All it is real number.
M values can be 4, and all CSI-RS ports for being allocated to the UE are divided into four set, i.e. the first CSI-RS
Port subset CouncilforScientificandIndustrialResearch SSubSet0, the 2nd CSI-RS port subset CouncilforScientificandIndustrialResearch SSubSet1, the 3rd CSI-RS port subsets
CSIRSSubSet2With the 4th CSI-RS port subset CouncilforScientificandIndustrialResearch SSubSet4。
Wherein, for the first CSI-RS port subset CouncilforScientificandIndustrialResearch SSubSet0, power offset informationFor second
CSI-RS port subset CouncilforScientificandIndustrialResearch SSubSet1, power offset informationFor the 3rd CSI-RS port subsets
CSIRSSubSet2, power offset informationFor the 4th CSI-RS port subset CouncilforScientificandIndustrialResearch SSubSet3, power excursion letter
BreathWherein, a0, a1, a2And a3All it is real number.
It is noted that for the UE, a CSI-RS port subset corresponds to distributing antenna system or coordinate multipoint passes
A transmission node TP in defeated system, or a CSI-RS port subset corresponds to distributing antenna system or coordinate multipoint passes
Multiple transmission node TP in defeated system.
The embodiment of the present invention additionally provides another CSI processing methods, as shown in Fig. 2, it mainly includes the following steps：
Step S210, base station configure multiple power informations corresponding to CSI-RS port subsets in high-rise configuration signal；
Step S220, base station send the high-rise configuration signal for carrying power information to UE；
Step S230, the measurement result that using channel measurement is obtained and power information of the base station reception from UE are determined
CSI.
Above-mentioned power information can be downlink data and each resource element energy (EPRE) ratio of reference signal
Parameter, for example be the ratio p-C of the EPRE of the EPRE and CSI-RS of Physical Downlink Shared Channel (PDSCH).
It is identical corresponding to the value of the power information of one or more CSI-RS port subset；Corresponding to one or more
The value range of the power information of CSI-RS port subsets can also be identical.
The embodiment of the present invention additionally provides a kind of CSI processing units, and applied to UE, it can be used for foregoing as shown in Figure 1
Embodiment.With reference to previous embodiment, the device as shown in Figure 3 mainly includes：
First receiving module 310, for receiving high-rise configuration signal, wherein, high-rise configuration signal includes multiple correspond to
The power information of CSI-RS port subsets；
Measurement module 320, for carrying out channel measurement using the CSI-RS received, obtains measurement result；
Determining module 330, is connected with first receiving module 310 and the measurement module 320, for using measurement module
The power information that 320 measurement results obtained and the first receiving module 310 are received determines CSI；
Reporting module 340, is connected with determining module 330, for reporting CSI determined by determining module 330.
The embodiment of the present invention additionally provides a kind of CSI processing units, and applied to base station, it can be used for foregoing such as Fig. 2 institutes
The embodiment shown.With reference to previous embodiment, as shown in figure 4, the device 400 mainly includes：
Configuration module 410, for configuring multiple power informations corresponding to CSI-RS port subsets in high-rise configuration signal；
Sending module 420, is connected with configuration module 410, for the power information that will be carried configuration module 410 and configured
High-rise configuration signal be sent to user equipment (UE)；
Second receiving module 430, for receiving the measurement result and power information that are obtained using channel measurement from UE
Identified CSI.
The embodiment of the present invention additionally provides a kind of CSI processing systems, comprising embodiment as shown in Figure 3 obtain device and
The device of embodiment illustrated in fig. 4.The system mainly includes：
First processing unit, it includes the first receiving module 310 as shown in Figure 3, measurement module 320, determining module 330
And reporting module 340, each module in the present apparatus refer to the content understanding of embodiment illustrated in fig. 3, do not repeat herein；
Second processing device, it includes configuration module 410 as shown in Figure 4,420 and second receiving module of sending module
430, wherein sending module 420 is connected with the first receiving module 310 in the first processing unit, the second receiving module 430 and
Reporting module 340 in one processing unit is connected, and each module in the present apparatus refers to the content understanding of embodiment illustrated in fig. 4,
Do not repeat herein；
By the embodiment of the present invention, when overcoming that UE determines CSI in correlation technique, using to different CSI-RS ports
The problem of subset causes CSI-RS port subset computational accuracies poor using identical deviation parameter, improves the standard of CSI
True rate and precision.
CSI reference resources are illustrated in terms of time domain, frequency domain and domain transmission three below.
On frequency domain, CSI reference resources represent that CQI is measured in certain section of bandwidth and get.
In time domain, CSI reference resources represent that CQI measures what is got on some downlink subframe, wherein, downlink subframe exists
It is invalid in some cases；When the downlink subframe where CSI reference resources is invalid, then in the sub-frame of uplink on subframe n
Do not report CQI；Specifically,
During periodic feedback CQI, its downlink subframe nCQI_ref is at least 4；That is, CQI is at least four downlink
Measurement is got before subframe；
During non-periodic feedback, CQI is to measure to get on the downlink subframe that DCI format 0 are triggered；
During non-periodic feedback, CQI is that after the subframe of Random Access Response Grant triggerings
Subframe measurement is got.
On domain transmission, CQI is calculated by PMI and RI and got.
Then, also following necessary condition when calculating CQI using CSI reference resources：
In CSI reference resources, UE should do it is assumed hereinafter that, to calculate CQI sequence numbers：
Preceding 3 OFDM symbols are used for control signal；
There is no resource particle to be used for primary/secondary synchronizing signal or Physical Broadcast Channel (Physical Broadcast
Channel, referred to as PBCH)；
Non-multicast Broadcast Single Frequency Network (MB SFN：Multicast/Broadcast Single Frequency
Network) the CP length of subframe；
In redundancy versions 0：
Ratio between PDSCH EPRE and CSI-RS；
According to the UE transmission modes (may be default mode) being currently configured, the transmission plan of PDSCH；
PDSCH EPRE relative to the proprietary RS EPRE of cell ratio.
ρAIt should be hypothesis below：
If UE is configured to the transmission mode 2 with 4 cell-specific antenna ports, or has 4 cell-specific antennas
When the transmission mode 3 of port and associated RI values are 1, for any modulation scheme, ρA=PA+Δoffset+10log10(2)
[dB]；Otherwise, for any modulation scheme and any number of plies, ρA=PA+Δoffset[dB]。
Wherein,
PAIt is the parameter of high-level signaling configuration, represents that PDSCH EPRE are initial relative to the ratio of the proprietary RS EPRE of cell
Value；
Offset ΔoffsetThe parameter nomPDSCH-RSs-EPRE-Offset configured by top signaling gives, and represents to calculate
PDSCH EPRE are relative to the initial adjusted value of the ratio of the proprietary RS EPRE of cell when CQI；
ρARepresent that PDSCH EPRE are relative to the final value of the ratio of the proprietary RS EPRE of cell when calculating CQI.
On the definition of CSI reference resources, on frequency domain, CSI reference resources are determined with one group of downlink physical resource block
Justice, downlink physical resource block correspond on the corresponding frequency band of source CQI value；In time domain, one downlink subframe of CSI reference resources
To define；On transport layer domain, CSI reference resources are defined with any RI and PMI, and CQI is using RI and PMI as condition
's.
Preferably, the CQI determines that method includes, for specific transmission pattern, if eNodeB configures no PMI/
RI or CRS port numbers are equal to 1, and terminal UE calculates CQI based on CRS, if eNodeB is configured with PMI/RI and CRS ports
Number is more than 1, and terminal UE calculates CQI based on CSI-RS.
Experimental applications one
Base station configuration UE where UE is to have the port number of pre-coding matrix instruction PMI/RI and CRS to be more than 1.
User equipment (UE) receives the high-level signaling of the CSI-RS configuration information from base station, wherein, CSI-RS configuration information
High-level signaling include at least multiple power informations, each CSI-RS is given in base station by the CSI-RS high-level signalings configured
Port subset both defines a power information；Based on the power information, pass through the channel status received to the UE
Information-reference signal CSI-RS, the UE calculate the channel condition information CSI of CSI reference resources, including RI values, PMI value with
CQI value；The UE reports the channel condition information CSI.
Parameter includes：Power information is the parameter p-C of downlink data and the EPRE ratios of reference signal.
CSI-RS port subsets are to be allocated to the m set that all N number of CSI-RS ports of the UE are divided into.Wherein,
N0A CSI-RS ports form the first CSI-RS port subset CouncilforScientificandIndustrialResearch SSubSet0, N1A CSI-RS ports form the 2nd CSI-RS
Port subset CouncilforScientificandIndustrialResearch SSubSet1, and so on, Nm-1A port forms m CSI-RS port subset CouncilforScientificandIndustrialResearch SSubSetm-1.Its
In, N is greater than 1 positive integer, and m is greater than 1 positive integer, and m is less than or equal to N.
For the first CSI-RS port subset CouncilforScientificandIndustrialResearch SSubSet0, power offset informationFor the 2nd CSI-RS
Port subset CouncilforScientificandIndustrialResearch SSubSet1, power offset informationAnd so on；For m CSI-RS port subsets
CSIRSSubSetm-1, power offset informationWherein, a0, a1..., am-1It is real number.
M can be equal to 2 herein.
Accordingly, CSI-RS port subsets refer to, all CSI-RS ports for being allocated to the UE are the division from 15 to 22
Heal up for 2 collection, this 8 ports are divided into 2 set.Wherein, 4 CSI-RS ports form the first CSI-RS from 15 to 18
Port subset CouncilforScientificandIndustrialResearch SSubSet0, in addition 4 CSI-RS ports are that the 2nd CSI-RS port subsets are formed from 19 to 22
CSIRSSubSet1。
For the first CSI-RS port subset CouncilforScientificandIndustrialResearch SSubSet0, power offset informationFor the 2nd CSI-RS
Port subset CouncilforScientificandIndustrialResearch SSubSet1, power offset information
For example, a0=12 [dB], a1=0 [dB].
In another example：a0=6 [dB], a1=6 [dB].
It is noted that a0And a1Value can be identical, can not also be identical.
Wherein,It is the ratio that PDSCH EPRE and CSI-RS EPRE assume when UE obtains CSI feedback.For institute
The UE stated, a CSI-RS port subset correspond to a transmission node in distributing antenna system or cooperative multicast system
TP, or a CSI-RS port subset correspond to multiple transmission nodes in distributing antenna system or cooperative multicast system
TP。
The CSI values are reported to eNodeB by terminal UE.
More specifically, such as：
Wherein, on frequency domain, CSI reference resources are defined with one group of downlink physical resource block, downlink physical resource block
Corresponding on the corresponding frequency band of source CQI value；In time domain, CSI reference resources are defined with a downlink subframe；In transport layer domain
On, CSI reference resources are defined with any RI and PMI.
Experimental applications two
Base station configuration UE where UE is to have the port number of pre-coding matrix instruction PMI/RI and CRS to be more than 1.
User equipment (UE) receives the high-level signaling of the CSI-RS configuration information from base station, wherein, CSI-RS configuration information
High-level signaling include at least multiple power informations, each CSI-RS is given in base station by the CSI-RS high-level signalings configured
Port subset both defines a power information；Based on the power information, pass through the channel status received to the UE
Information-reference signal CSI-RS, the UE calculate the channel condition information CSI of CSI reference resources, including RI values, PMI value with
CQI value；UE reports the channel condition information CSI.
Parameter includes：Power information is the parameter p-C of downlink data and the EPRE ratios of reference signal.
For the UE, CSI-RS port subsets refer to by all N number of CSI-RS in the configuration of a CSI-RS
M subset of the set that port is formed.
Specifically, CSI-RS port subsets are N number of CSI-RS ends all in the configuration by a CSI-RS of the UE
M set obtained by mouth division.
Wherein, N0A CSI-RS ports form the first CSI-RS port subset CouncilforScientificandIndustrialResearch SSubSet0, N1A CSI-RS ports structure
Into the 2nd CSI-RS port subset CouncilforScientificandIndustrialResearch SSubSet1, and so on, Nm-1A port forms m CSI-RS port subsets
CSIRSSubSetm-1.Wherein, N is greater than 1 positive integer, and m is greater than 1 positive integer, and m is less than or equal to N.
For the first CSI-RS port subset CouncilforScientificandIndustrialResearch SSubSet0, power offset informationFor the 2nd CSI-RS
Port subset CouncilforScientificandIndustrialResearch SSubSet1, power offset informationAnd so on；For m CSI-RS port subsets
CSIRSSubSetm-1, power offset informationWherein, a0, a1..., am-1It is real number.
Herein, m can be equal to 4.
CSI-RS port subsets refer to that all CSI-RS ports for being allocated to the UE are from 15 to 22, are divided into 4 collection
Heal up, i.e., this 8 ports are divided into 4 set.Wherein, 2 CSI-RS ports, that is, ports 15 and 16 form the first CSI-RS ends
Openning collection CouncilforScientificandIndustrialResearch SSubSet0, 2 CSI-RS ports, that is, ports 17 and 18 form the 2nd CSI-RS port subsets
CSIRSSubSet1, 2 CSI-RS ports, that is, ports 19 and 20 form the 3rd CSI-RS port subset CouncilforScientificandIndustrialResearch SSubSet2, 2
CSI-RS ports, that is, port 21 and 22 forms the 4th CSI-RS port subset CouncilforScientificandIndustrialResearch SSubSet3。
For the first CSI-RS port subset CouncilforScientificandIndustrialResearch SSubSet0, power offset informationFor the 2nd CSI-RS
Port subset CouncilforScientificandIndustrialResearch SSubSet1, power offset informationFor the 3rd CSI-RS port subset CouncilforScientificandIndustrialResearch SSubSet2, work(
Rate offset informationFor the 4th CSI-RS port subset CouncilforScientificandIndustrialResearch SSubSet3, power offset information
For example, a0=12 [dB], a1=0 [dB], a2=6 [dB], a3=-6 [dB].
In another example：a0=6 [dB], a1=-8 [dB], a2=0 [dB], a3=12 [dB].
It is noted that a0、a1、a2And a3Value can be identical, can not also be identical.
Wherein,It is the ratio that PDSCH EPRE and CSI-RS EPRE assume when UE obtains CSI feedback.For institute
The UE stated, a CSI-RS port subset correspond to a transmission node in distributing antenna system or cooperative multicast system
TP, or a CSI-RS port subset correspond to multiple transmission nodes in distributing antenna system or cooperative multicast system
TP。
The CSI values are reported to eNodeB by terminal UE.
Wherein, on frequency domain, CSI reference resources are defined with one group of downlink physical resource block, downlink physical resource block
Corresponding on the corresponding frequency band of source CQI value；In time domain, CSI reference resources are defined with a downlink subframe；In transport layer domain
On, CSI reference resources are defined with any RI and PMI.
Experimental applications three
Base station configuration UE where UE is to have the port number of pre-coding matrix instruction PMI/RI and CRS to be more than 1.
User equipment (UE) receives the high-level signaling of the CSI-RS configuration information from base station, wherein, CSI-RS configuration information
High-level signaling include at least multiple power informations, each CSI-RS is given in base station by the CSI-RS high-level signalings configured
Port subset both defines a power information；Based on the power information, pass through the channel status received to the UE
Information-reference signal CSI-RS, the UE calculate the channel condition information CSI of CSI reference resources, including RI values, PMI value with
CQI value；The UE reports the channel condition information CSI.
The power information includes each resource element energy (EPRE) of a reference signal and another reference signal
Ratio.
Specifically, the power information includes the reference signal and another CSI port of a CSI-RS port subset
Each resource element energy (EPRE) ratio of the reference signal of collection.
More specific, the power information includes：For first port subset, power information is downlink data and first
The parameter p-C of the EPRE ratios of a port subset reference signal0；For the second port subset to the end, power information is pair
The reference signal of the port subset of second answered to the end and the parameter p-C of the EPRE ratios of first port subset reference signalk/
p-C0, wherein k=1 ..., m-1.
CSI-RS port subsets are to be allocated to the m set that all N number of CSI-RS ports of the UE are divided into.Wherein,
N0A CSI-RS ports form the first CSI-RS port subset CouncilforScientificandIndustrialResearch SSubSet0, N1A CSI-RS ports form the 2nd CSI-RS
Port subset CouncilforScientificandIndustrialResearch SSubSet1, and so on, Nm-1A port forms m CSI-RS port subset CouncilforScientificandIndustrialResearch SSubSetm-1.Its
In, N is greater than 1 positive integer, and m is greater than 1 positive integer, and m is less than or equal to N.
For the first CSI-RS port subset CouncilforScientificandIndustrialResearch SSubSet0, power offset information isFor the 2nd CSI-
RS port subset CouncilforScientificandIndustrialResearch SSubSet1, power offset information isFor the 3rd CSI-RS port subsets
CSIRSSubSet2, power offset information isAnd so on；For m CSI-RS port subsets
CSIRSSubSetm-1, power offset information isWherein, a0, a1..., am-1It is real number.
M can be equal to 2 herein.
Accordingly, CSI-RS port subsets refer to, all CSI-RS ports for being allocated to the UE are the division from 15 to 22
Heal up for 2 collection, this 8 ports are divided into 2 set.Wherein, 4 CSI-RS ports form the first CSI-RS from 15 to 18
Port subset CouncilforScientificandIndustrialResearch SSubSet0, in addition 4 CSI-RS ports are that the 2nd CSI-RS port subsets are formed from 19 to 22
CSIRSSubSet1。
For the first CSI-RS port subset CouncilforScientificandIndustrialResearch SSubSet0, power offset information p-C0=a0；For the 2nd CSI-RS
Port subset CouncilforScientificandIndustrialResearch SSubSet1, power offset information
For example, a0=12 [dB], a1=-12 [dB].
In another example：a0=6 [dB], a1=0 [dB].
It is noted that a0And a1Value can be identical, can not also be identical.
Wherein,It is the ratio that PDSCH EPRE and CSI-RS EPRE assume when UE obtains CSI feedback,It is that CSI-RSEPRE and second port for working as a port set when UE obtains CSI feedback is gathered
CSI-RS EPRE, wherein k are 1 positive integers for arriving m-1.For the UE, a CSI-RS port subset corresponds to distributed day
A transmission node TP in linear system system or cooperative multicast system, or a CSI-RS port subset correspond to distributed day
Multiple transmission node TP in linear system system or cooperative multicast system.
The CSI values are reported to eNodeB by terminal UE.
Experimental applications four
Base station configuration UE where UE is to have the port number of pre-coding matrix instruction PMI/RI and CRS to be more than 1.
User equipment (UE) receives the high-level signaling of the CSI-RS configuration information from base station, wherein, CSI-RS configuration information
High-level signaling include at least multiple power informations, each CSI-RS is given in base station by the CSI-RS high-level signalings configured
Port subset both defines a power information；Based on the power information, pass through the channel status received to the UE
Information-reference signal CSI-RS, the UE calculate the channel condition information CSI of CSI reference resources, including RI values, PMI value with
CQI value；The UE reports the channel condition information CSI.
The power information includes each resource element energy (EPRE) of a reference signal and another reference signal
Ratio.
Specifically, the power information includes the every of the reference signal of CSI port subset and public reference signal CRS
A resource element energy (EPRE) ratio.
More specific, the power information includes：For first port subset, power information is first port subset
Reference signal and the parameter p-C-CRS of the EPRE ratios of public reference signal CRS；For the second port subset to the end, work(
Corresponding rate information is the reference signal of the second port subset to the end and the parameter of public reference signal CRS ratios.
CSI-RS port subsets are to be allocated to the m set that all N number of CSI-RS ports of the UE are divided into.Wherein,
N0A CSI-RS ports form the first CSI-RS port subset CouncilforScientificandIndustrialResearch SSubSet0, N1A CSI-RS ports form the 2nd CSI-RS
Port subset CouncilforScientificandIndustrialResearch SSubSet1, and so on, Nm-1A port forms m CSI-RS port subset CouncilforScientificandIndustrialResearch SSubSetm-1.Its
In, N is greater than 1 positive integer, and m is greater than 1 positive integer, and m is less than or equal to N.
For the first CSI-RS port subset CouncilforScientificandIndustrialResearch SSubSet0, power offset information is For
Two CSI-RS port subset CouncilforScientificandIndustrialResearch SSubSet1, power offset information isFor the 3rd CSI-RS ports
Collect CouncilforScientificandIndustrialResearch SSubSet2, power offset information isAnd so on；For m CSI-RS port subsets
CSIRSSubSetm-1, power offset information isWherein, a0, a1..., am-1It is real number.
M can be equal to 2 herein.
Accordingly, CSI-RS port subsets refer to, all CSI-RS ports for being allocated to the UE are the division from 15 to 22
Heal up for 2 collection, this 8 ports are divided into 2 set.Wherein, 4 CSI-RS ports form the first CSI-RS from 15 to 18
Port subset CouncilforScientificandIndustrialResearch SSubSet0, in addition 4 CSI-RS ports are that the 2nd CSI-RS port subsets are formed from 19 to 22
CSIRSSubSet1。
For the first CSI-RS port subset CouncilforScientificandIndustrialResearch SSubSet0, power offset information p-C-CRS0=a0；For second
CSI-RS port subset CouncilforScientificandIndustrialResearch SSubSet1, power offset information
For example, a0=12 [dB], a1=-12 [dB].
In another example：a0=6 [dB], a1=0 [dB].
It is noted that a0And a1Value can be identical, can not also be identical.
Wherein,It is the ratio that CSI-RS EPRE and CRS EPRE assume when UE obtains CSI feedback.It is right
In the UE, a CSI-RS port subset corresponds to a transmission in distributing antenna system or cooperative multicast system
Node TP, or a CSI-RS port subset correspond to multiple transmission in distributing antenna system or cooperative multicast system
Node TP.
The CSI values are reported to eNodeB by terminal UE.
Experimental applications five
Main contents are identical with experimental applications one, and difference is,
The power information of the CSI-RS port subsets, has multiple corresponding work(for each CSI-RS port subset
Rate offset information.
Specifically, for each CSI-RS port subset, multiple corresponding power offset informations are corresponding space order RI
Power offset information.
Preferably for a RI, power offset information has a value.
Preferably for multiple RI, power offset information has an identical value.
For the first CSI-RS port subset CouncilforScientificandIndustrialResearch SSubSet0, there is the power offset information p-C of multiple corresponding RI；For
2nd CSI-RS port subset CouncilforScientificandIndustrialResearch SSubSet1, there is the power offset information p-C of multiple corresponding RI；And so on；For m
CSI-RS port subset CouncilforScientificandIndustrialResearch SSubSetm-1, there is the power offset information p-C of multiple corresponding RI；
Accordingly, CSI-RS port subsets refer to, all CSI-RS ports for being allocated to the UE are the division from 15 to 22
Heal up for 2 collection, this 8 ports are divided into 2 set.Wherein, 4 CSI-RS ports form the first CSI-RS from 15 to 18
Port subset CouncilforScientificandIndustrialResearch SSubSet0, in addition 4 CSI-RS ports are that the 2nd CSI-RS port subsets are formed from 19 to 22
CSIRSSubSet1。
Assuming that current order RI=4,
For the first CSI-RS port subset CouncilforScientificandIndustrialResearch SSubSet0,
RI=1,RI=2,RI=3 and 4,
Wherein, a1, a2, a3 are real numbers, infinite to just infinite value from bearing, and meet a1 >=a2 >=a3, and unit is dB.
Preferably, a1=12 [dB], a2=10 [dB], a3=-8 [dB].
For the 2nd CSI-RS port subset CouncilforScientificandIndustrialResearch SSubSet1, power offset information
RI=1,RI=2,RI=3 and 4,
Wherein, a1, a2, a3 are real numbers, infinite to just infinite value from bearing, and meet a1 >=a2 >=a3, and unit is dB.
Preferably, a1=15 [dB], a2=0 [dB], a3=-8 [dB].
Wherein,It is the ratio that PDSCH EPRE and CSI-RS EPRE assume when UE obtains CSI feedback.For institute
The UE stated, a CSI-RS port subset correspond to a transmission node in distributing antenna system or cooperative multicast system
TP, or a CSI-RS port subset correspond to multiple transmission nodes in distributing antenna system or cooperative multicast system
TP。
The CSI values are reported to eNodeB by terminal UE.
In conclusion according to the abovementioned embodiments of the present invention and experimental applications, there is provided on a kind of channel quality information
Reporting method, channel quality information determine method and system.For particular UE, difference is given based on different CSI-RS port subsets
Power offset values.And then by flexibly configuring, on the one hand terminal can be carried efficiently against the influence of large scale decline
The high performance of distributing antenna system；On the other hand, the computational accuracy of channel quality information is improved.
Those skilled in the art should be understood that each of the device that the above-mentioned embodiment of the present invention provided and/or system
Each step in part, and method, can be realized, they can concentrate on single meter with general computing device
Calculate on device, or be distributed on the network that multiple computing devices are formed, alternatively, they can be can perform with computing device
Program code realize, it is thus possible to be stored in storage device by computing device to perform, or by they point
Each integrated circuit modules are not fabricated to, or the multiple modules or step in them are fabricated to single integrated circuit module
Realize.Combined in this way, the present invention is not restricted to any specific hardware and software.
Although disclosed herein embodiment as above, the content only to facilitate understand the present invention and adopt
Embodiment, is not limited to the present invention.Any those skilled in the art to which this invention pertains, are not departing from this
On the premise of the disclosed spirit and scope of invention, any modification and change can be made in the implementing form and in details,
But the scope of patent protection of the present invention, still should be subject to the scope of the claims as defined in the appended claims.
Claims (17)
1. a kind of processing method of channel condition information, apply includes in user equipment (UE) side, this method：
High-rise configuration signal is received, the high level configuration signal corresponds to channel condition information-reference symbol CSI- including multiple
The power information of RS port subsets；
Channel measurement is carried out using the CSI-RS, obtains measurement result；
Channel condition information CSI is determined using the measurement result and the power information and is reported；The power information includes
Each resource element energy of one CSI-RS port subsets reference signal and another CSI-RS port subset reference signal
EPRE ratios, or a CSI-RS port subsets reference signal and each resource element energy of public reference signal CRS
EPRE ratios；
For the UE, the CSI-RS port subsets are by all N number of CSI-RS ports structures in the configuration of a CSI-RS
Into set division obtained by m subset；
Wherein, N is greater than 1 positive integer, and m is greater than 1 positive integer, and m is less than or equal to N, and identical without two subsets.
2. according to the method described in claim 1, wherein：
The power information includes downlink data and each resource element ENERGY E PRE ratios of reference signal.
3. according to the method described in claim 2, wherein：
The downlink data includes downlink physical Data Shared Channel PDSCH；
The reference signal includes the CSI-RS.
4. according to the method described in claim 1, wherein:
CSI-RS port subsets described in any two do not include identical element, and all CSI-RS port subsets are included
The sum of the quantity of element be equal to N.
5. according to the method described in claim 1, wherein：
The power information of the CSI-RS port subsets, has one or more correspondence for each CSI-RS port subset
Power offset information.
6. according to the method described in claim 5, wherein：
The power information of the CSI-RS port subsets, for each CSI-RS port subset, the multiple corresponding power
Offset information includes the power offset information of corresponding space order RI.
7. according to the method described in claim 5, wherein：
The value of the power offset information of each CSI-RS port subsets is identical or different.
8. according to the method described in claim 5, wherein：
The value range of the power offset information of each CSI-RS port subsets is identical or different.
9. according to the method described in claim 1, wherein：
One CSI-RS port subset, corresponds to a transmission section in distributing antenna system or cooperative multicast system
Multiple transmission nodes in point, or corresponding distributing antenna system or cooperative multicast system.
10. a kind of processing method of channel condition information, including：
Multiple power corresponding to channel condition information-reference symbol CSI-RS port subsets are believed in the high-rise configuration signal of configuration
Breath；
Send the high-rise configuration signal for carrying the power information；The power information includes a CSI-RS port subset and joins
Examine each resource element ENERGY E PRE ratios of signal and another CSI-RS port subset reference signal, or a CSI-RS
Port subset reference signal and each resource element ENERGY E PRE ratios of public reference signal CRS；
Receiving channel state information CSI；
Wherein, the measurement result and the power information that the CSI is obtained by user equipment according to channel measurement determine；
The set that the CSI-RS port subsets are made of all N number of CSI-RS ports in the configuration of a CSI-RS divides
Obtained by m subset；
Wherein, N is greater than 1 positive integer, and m is greater than 1 positive integer, and m is less than or equal to N, and identical without two subsets.
11. according to the method described in claim 10, wherein：
The power information includes downlink data and each resource element ENERGY E PRE ratios of reference signal.
12. the method according to claim 11, wherein：
The downlink data includes downlink physical Data Shared Channel PDSCH；
The reference signal includes the CSI-RS.
13. according to the method described in claim 10, wherein：
It is identical corresponding to the value of the power information of one or more CSI-RS port subset.
14. according to the method described in claim 10, wherein：
It is identical corresponding to the value range of the power information of one or more CSI-RS port subset.
15. a kind of processing unit of channel condition information, including：
First receiving module, for receiving high-rise configuration signal, the high level configuration signal corresponds to channel status including multiple
The power information of information-reference symbol CSI-RS port subsets；The power information includes a CSI-RS port subset and refers to
Signal and each resource element ENERGY E PRE ratios of another CSI-RS port subset reference signal, or a CSI-RS end
Openning collection reference signal and each resource element ENERGY E PRE ratios of public reference signal CRS；
Measurement module, for carrying out channel measurement using the CSI-RS, obtains measurement result；
Determining module, for determining channel condition information CSI using the measurement result and the power information；
Reporting module, for reporting the CSI；
The set that the CSI-RS port subsets are made of all N number of CSI-RS ports in the configuration of a CSI-RS divides
Obtained by m subset；
Wherein, N is greater than 1 positive integer, and m is greater than 1 positive integer, and m is less than or equal to N, and identical without two subsets.
16. a kind of processing unit of channel condition information, including：
Configuration module, multiple in high-rise configuration signal corresponds to channel condition information-reference symbol CSI-RS ports for configuring
The power information of subset；The power information includes a CSI-RS port subsets reference signal and another CSI-RS port
Collect each resource element ENERGY E PRE ratios of reference signal, or a CSI-RS port subsets reference signal and common reference
Each resource element ENERGY E PRE ratios of signal CRS；
Sending module, the high-rise configuration signal of the power information is carried for sending；
Second receiving module, for receiving channel state information CSI,
Wherein, the measurement result and the power information that the CSI is obtained by user equipment according to channel measurement determine；
The set that the CSI-RS port subsets are made of all N number of CSI-RS ports in the configuration of a CSI-RS divides
Obtained by m subset；
Wherein, N is greater than 1 positive integer, and m is greater than 1 positive integer, and m is less than or equal to N, and identical without two subsets.
17. a kind of processing system of channel condition information, including processing unit as claimed in claim 15 and as right will
The processing unit described in 16 is sought, wherein：
First receiving module is used to receive the high-rise configuration signal that the sending module is sent；
Second receiving module is used to receive the CSI that the reporting module reports.
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