CN102201897B - Channel condition information processing method, apparatus and system - Google Patents
Channel condition information processing method, apparatus and system Download PDFInfo
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- CN102201897B CN102201897B CN201110111805.XA CN201110111805A CN102201897B CN 102201897 B CN102201897 B CN 102201897B CN 201110111805 A CN201110111805 A CN 201110111805A CN 102201897 B CN102201897 B CN 102201897B
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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
- 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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Abstract
The invention discloses a kind of channel condition information processing method, apparatus and system, this method includes UE and receives high-rise configuration signal, wherein, high-rise configuration signal includes multiple power parameters corresponding to rank information RI；UE carries out channel measurement using the CSI RS or CRS received；UE determines CSI using the result and power parameter of channel measurement and reports CSI.The present invention improves the performance of system, and improves the computational accuracy of channel quality information.
Description
Technical field
The present invention relates to the communications field, in particular to a kind of channel condition information (Channel State
Information, referred to as CSI) processing method, apparatus and system.
Background technology
In wireless communication technology, base station side (the node B of such as evolution is eNodeB, abbreviation eNB) uses many antennas
When sending data, the mode of spatial reuse can be taken to improve message transmission rate, i.e., use identical time-frequency in transmitting terminal
Resource launches different data in different aerial positions, and receiving terminal (such as user equipment (UE)) also receives number using many antennas
According to.The resource of all antennas is distributed on same user in the case of single user, this user is only in a transmission intercal
From the physical resource of distributing to base station side is occupied, this transmission means is referred to as single user multiple-input, multiple-output (Single User
Multiple-InputMultiple-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 means is referred to as multi-user
Multiple-input, multiple-output (Multiple UserMultiple-Input Multiple-Out-put, abbreviation MU-MIMO), wherein base station side
The physical resource of distribution refers to running time-frequency resource.If Transmission system will support SU-MIMO and MU-MIMO simultaneously, eNB then need to
UE provides the data under both patterns.UE is both needed to know that eNB is passed for the UE in SU-MIMO patterns or MU-MIMO patterns
Order (Rank) used in defeated MIMO data.Under SU-MIMO patterns, the resource of all antennas is distributed on same user, transmission
The number of plies used in MIMO data is equal to eNB in the order used in transmission MIMO data；Under MU-MIMO patterns, one use of correspondence
The transmission number of plies used in family transmits total number of plies of MIMO data less than eNB, if to carry out SU-MIMO patterns and MU-MIMO
Switching, eNB needs the control datas different UE that sent a notice in different transmission mode.
In long evolving system (LTE：Long Term Evolution) in, reflect the information of down physical channel state
(CSI：Channel State Information) include 3 partial contents：Channel quality indicates (CQI：Channels
Qualityindication), pre-coding matrix instruction (PMI：Pre-coding Matrix Indicator), order instruction (RI：
Rank Indicator)。
CQI is a fine or not index of measurement down channel 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 table 1CQI indexes 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 can not exist independently of RI and PMI.
In correlation technique when UE is carried out in CSI determination process, using the parameter that deviation parameter is unified, cause CSI accurate
Rate is than relatively low.
The content of the invention
It is a primary object of the present invention to provide channel condition information processing method, apparatus and system, at least to solve
State CSI accuracys rate than it is relatively low the problem of.
According to an aspect of the invention, there is provided a kind of CSI processing methods, including：UE receives high-rise configuration signal, its
In, high-rise configuration signal includes multiple power parameters corresponding to RI；UE uses the channel condition information-reference symbol received
(CSI-RS) or public reference signal (CRS) carry out channel measurement；UE determines CSI using the result and power parameter of channel measurement
And report CSI.
Preferably, power parameter is downlink physical Data Shared Channel PDSCH EPRE and CSI-RS EPRE ratio
Value p-C.
Preferably, successively decrease corresponding to RI power parameter with being incremented by for RI.
Preferably, RI is that 1 to the natural number between N, N is 2,4 or 8.
Preferably, corresponding to one or more RI power parameter value or span it is identical.
Preferably, RI=1,RI=2,RI=3 and 4,Wherein, a1, a2, a3 are real numbers,
And meet a1 >=a2 >=a3.
Preferably, RI=1,RI=2,RI=3 and 4,RI=5 to 8,Wherein,
B1, b2, b3, b4 are real numbers, and meet b1 >=b2 >=b3 >=b4.
According to another aspect of the present invention, a kind of CSI processing methods are additionally provided, including：Base station configuration is high-rise to match somebody with somebody confidence
Multiple power parameters corresponding to RI in order；The high-rise configuration signal for carrying power parameter is sent to UE by base station；Base station connects
Receive CSI determined by the result and power parameter of the use channel measurement from UE.
Preferably, power parameter is descending PDSCH EPRE and CSI-RS EPRE ratio p-C.
Preferably, multiple power parameters corresponding to RI include in the high-rise configuration signal of base station configuration：Base station configure with it is right
It should successively decrease in RI power parameter with being incremented by for RI.
Preferably, RI is that 1 to the natural number between N, N is 2,4 or 8.
Preferably, corresponding to one or more RI power parameter value or span it is identical.
In accordance with a further aspect of the present invention, a kind of CSI processing units are additionally provided, applied to UE, including：First receives mould
Block, high-rise configuration signal is carried out for receiving, wherein, high-rise configuration signal includes multiple power parameters corresponding to rank information RI；
Measurement module, for carrying out channel measurement using the CSI-RS or CRS received；Determining module, uses the result of channel measurement
CSI is determined with power parameter；Reporting module, for reporting CSI.
According to another aspect of the invention, a kind of CSI processing units are additionally provided, applied to base station, including：Configure mould
Block, for configuring multiple power parameters corresponding to RI in high-rise configuration signal；Sending module, for power parameter will to be carried
High-rise configuration signal be sent to user equipment (UE)；Second receiving module, the knot for receiving the use channel measurement from UE
Fruit and CSI determined by power parameter.
In accordance with a further aspect of the present invention, a kind of CSI processing units are additionally provided, including：First CSI processing units, are used
Carry out high-rise configuration signal in receiving, wherein, high-rise configuration signal includes multiple power parameters corresponding to RI；Use what is received
CSI-RS or CRS carries out channel measurement；CSI is determined using the result and power parameter of channel measurement；Reporting module, for reporting
CSI；2nd CSI processing units, for configuring multiple power parameters corresponding to RI in high-rise configuration signal；Power will be carried
The high-rise configuration signal of parameter is sent to user equipment (UE)；Receive result and the power parameter institute of the use channel measurement from UE
The CSI of determination.
By the present invention, UE receives high-rise configuration signal, wherein, high-rise configuration signal includes multiple corresponding to rank information RI
Power parameter；UE carries out channel using the channel condition information received-reference symbol CSI-RS or public reference signal CRS
Measurement；UE determines CSI using the result and power parameter of channel measurement；UE reports CSI, overcomes and CSI is determined in correlation technique
When, identical deviation parameter is used using to different RI, causes the problem of RI computational accuracies are poor, has reached raising CSI
The effect of precision.
Brief description of the drawings
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the application, this hair
Bright schematic description and description is used to explain the present invention, does not constitute inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the first pass figure of CSI acquisition methods according to embodiments of the present invention；
Fig. 2 is the second flow chart of CSI acquisition methods according to embodiments of the present invention；
Fig. 3 is the first structure block diagram of CSI acquisition device according to embodiments of the present invention；
Fig. 4 is the second structured flowchart of CSI acquisition device according to embodiments of the present invention；And
Fig. 5 is the structured flowchart that CSI according to embodiments of the present invention obtains system.
Embodiment
Describe the present invention in detail below with reference to accompanying drawing and in conjunction with the embodiments.It should be noted that not conflicting
In the case of, the feature in embodiment and embodiment in the application can be mutually combined.
The invention provides a kind of CSI processing methods, Fig. 1 is the first of CSI processing methods according to embodiments of the present invention
Flow chart, including steps S102 to step S108.
Step S102, UE receive high-rise configuration signal, wherein, high-rise configuration signal, which includes multiple power corresponding to RI, joins
Number.
Step S104, UE carry out channel measurement using the CSI-RS or CRS received.
Step S106, UE determine CSI using the result and power parameter of channel measurement, and report CSI.
Preferably, power parameter is the adjustment value parameter of each resource element energy ratio of downlink data and reference signal
p-C。
Preferably, successively decrease corresponding to RI power parameter with being incremented by for RI.
Preferably, RI is that 1 to the natural number between N, N is 2,4 or 8.
Preferably, corresponding to one or more RI power parameter value or span it is identical.
Preferably, when transmission antenna number is 4, RI=1,RI=2,RI=3 and 4,Its
In, a1, a2, a3 is real number, and meets a1 >=a2 >=a3.
Preferably, when transmission antenna number is 8, RI=1,RI=2,RI=3 and 4,RI
=5 to 8,Wherein, b1, b2, b3, b4 are real numbers, and meet b1 >=b2 >=b3 >=b4.
Present embodiments provide a kind of CSI processing methods.Fig. 2 is the of CSI processing methods according to embodiments of the present invention
Two flow charts, as shown in Fig. 2 including steps S202 to step S206.
Multiple power parameters corresponding to RI in step S202, the high-rise configuration signal of base station configuration.
The high-rise configuration signal for carrying power parameter is sent to UE by step S204, base station.
Step S206, base station receives CSI determined by the result and power parameter of the use channel measurement from UE.
Preferably, power parameter is the parameter p- of downlink data and each resource element ENERGY E PRE ratios of reference signal
C。
Preferably, multiple power parameters corresponding to rank information RI include in the high-rise configuration signal of base station configuration：Match somebody with somebody base station
Put and successively decrease with the power parameter corresponding to RI with being incremented by for RI.
Preferably, RI is that 1 to the natural number between N, N is 2,4 or 8.
Preferably, corresponding to one or more RI power parameter value or span it is identical.
In accordance with a further aspect of the present invention there is provided a kind of CSI processing units, applied to UE, the device can be used for reality
Existing the above embodiments and its preferred embodiment, had carried out repeating no more for explanation, below to being related in the device
Module illustrate, Fig. 3 is the first structure block diagram of CSI acquisition device according to embodiments of the present invention, as shown in figure 3, should
Device includes：First receiving module 32, measurement module 34, determining module 36 and reporting module 38, are carried out to said structure below
Describe in detail.
First receiving module 32, high-rise configuration signal is carried out for receiving, wherein, high-rise configuration signal includes multiple correspond to
RI power parameter；Measurement module 34, for carrying out channel measurement using the CSI-RS or reference pilot signal CRS received；
Determining module 36, is connected to the first receiving module 32 and measurement module 34, uses the result of the channel measurement of measurement module 34 and
The power parameter that one receiving module 32 is received determines CSI；Reporting module 38, for reporting CSI.
A kind of CSI processing units are present embodiments provided, applied to UE, the device can be used for realizing the above embodiments
And its preferred embodiment, repeating no more for explanation had been carried out, the module being related in the device had been illustrated below,
Fig. 4 is the second structured flowchart of CSI acquisition device according to embodiments of the present invention, as shown in figure 4, the device includes：Configure mould
Block 42, the receiving module 46 of sending module 44 and second, said structure is described in detail below.
Configuration module 42, for configuring multiple power parameters corresponding to rank information RI in high-rise configuration signal；Send mould
Block 44, is connected to configuration module 42, and the high-rise configuration signal for carrying power parameter for configuration module 42 to be configured is sent
To user equipment (UE)；Second receiving module 46, is connected to the result and power ginseng for receiving the use channel measurement from UE
CSI determined by number.
A kind of CSI processing systems are present embodiments provided, Fig. 5 is the knot that CSI according to embodiments of the present invention obtains system
Structure block diagram, as shown in figure 5, the system includes the first CSI processing units 2 and the 2nd CSI processing units 4, the first CSI processing units
2 structure is as shown in figure 3, the structure of the 2nd CSI processing units 4 is as shown in figure 4, will not be repeated here.
Illustrated below in conjunction with preferred embodiment.
First, CSI reference resources are illustrated in terms of time domain, frequency domain, domain transmission three.
On frequency domain, CSI reference resources represent that CQI is measured in certain section of bandwidth and got；
In time domain, CSI reference resources represent to measure what is got on some descending sub frame, wherein, descending sub frame is at certain
It is invalid in the case of a little.When the descending sub frame where CSI reference resources is invalid, then in the sub-frame of uplink on subframe n not
Report CQI；Specifically,
During periodic feedback CQI, its descending sub frame nCQI_ref is at least 4.That is, CQI is descending at least four
Measurement is got before subframe；
During non-periodic feedback, CQI is to measure to get on the descending sub frame triggered in DCI format 0；
During non-periodic feedback, CQI is that after the subframe that Random Access Response Grant are triggered
Subframe measurement is got；
On domain transmission, it is next that CQI has PMI and RI to calculate.
Then, there is 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 (MBSFN：Multicast/Broadcast Single Frequency
Network) the CP length of subframe
In redundancy versions 0
Ratio between (newly-increased) PDSCH EPRE and CSI-RS
According to the UE transmission modes (may be default mode) being currently configured, PDSCH transmission plan
PDSCH EPRE RS EPREs proprietary relative to cell ratio.ρAIt should be hypothesis below：
If UE is configured to the transmission mode 2 with 4 cell-specific antenna ports, or with 4 cell-specific antennas
The transmission mode 3 of port and the RI values that associate for 1 when, for any modulation scheme, ρA=PA+Δoffset+10log10(2)
[dB]；
Otherwise, for any modulation scheme and any number of plies, ρA=PA+Δoffset[dB]。
Offset ΔoffsetThe parameter nomPDSCH-RSs-EPRE-Offset configured by top signaling gives, PAIt is high-rise
The parameter of signal deployment, represents PDSCH EPRE RS EPREs proprietary relative to cell ratio initial value, ΔoffsetRepresent to calculate
The initial adjusted value of PDSCH EPRE RS EPREs proprietary relative to cell ratio, ρ when CQIAWhen representing to calculate CQI
The final value of PDSCH EPRE RS EPREs proprietary relative to cell ratio.
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 corresponds on the corresponding frequency band of source CQI value；In time domain, CSI reference resources are with a descending sub frame
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, described CQI determines that method includes, for transmission mode 9, if eNodeB configure no PMI/RI or
Person CRS port numbers are equal to 1, and terminal UE calculates CQI based on CRS, if eNodeB is configured with PMI/RI and CRS port numbers
More than 1, terminal UE calculates CQI based on CSI-RS.
Preferred embodiment
Base station configuration UE where UE is that the port number for having pre-coding matrix instruction PMI/RI and CRS is 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 at least include multiple second power parameters, it is characterised in that base station passes through the high level of described CSI-RS configurations
Signaling both defines second power parameter value to each order RI values；
Based on described the first power parameter or the second power parameter, believed by the channel status received to the UE
Breath-reference signal CSI-RS, the UE calculates the channel condition information CSI of CSI reference resources, including RI values, PMI value and CQI
Value；
Step S106, the UE report the channel condition information CSI.
Preferably, parameter includes：Second power parameter is the parameter p-C of downlink data and the EPRE ratios of reference signal.
Wherein,It is the ratio that PDSCH EPRE and CSI-RS EPRE assume when UE obtains CSI feedback.
Preferably for a power parameter of rank firstWith a value.
Preferably for multiple power parameters of rank firstWith an identical value.
More specifically, for example：Assuming that the transmission antenna number of base station is 4,
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=a4=-8 [dB].
Preferably, a1=15 [dB], a2=0 [dB], a3=a4=-8 [dB].
Specifically, for example：Assuming that transmission antenna number is 8,
RI=1,RI=2,
RI=3 and 4,RI=5 to 8,
Wherein, a1, a2, a3, a4 are real numbers, infinite to just infinite value from bearing, and meet a1 >=a2 >=a3 >=a4.
Further, a1=10 [dB], a2=10 [dB], a3=a4=5 [dB], a5=a6=a7=a8=-8 [dB].
The CSI values are reported eNodeB by terminal UE.
More specifically, for example：
For 4 transmission antennas, it from 0 to 15, a3 and a4 span is from -8 to 7 that a1 and a2 span, which is,.
For 8 transmission antennas, it from 0 to 15, b3 and b4 span is from -8 to 7, b5 that b1 and b2 span, which is,
Span with b8 is from -8 to 0.
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 descending sub frame；In transport layer domain
On, CSI reference resources are defined with any RI and PMI.
It should be noted that can be in such as one group computer executable instructions the step of the flow of accompanying drawing is illustrated
Performed in computer system, and, although logical order is shown in flow charts, but in some cases, can be with not
The order being same as herein performs shown or described step.
In summary, there is provided a kind of channel quality information report method, channel matter according to the abovementioned embodiments of the present invention
Amount information determines method and system.Different power offset values are given based on different rank spaces orders.And then, by flexible
Configuration, terminal can select suitable space order, on the one hand improve the performance of system；On the other hand, channel quality is improved
The computational accuracy of information.
Obviously, those skilled in the art should be understood that above-mentioned each module of the invention or each step can be with general
Computing device realize that they can be concentrated on single computing device, or be distributed in multiple computing devices and constituted
Network on, alternatively, the program code that they can be can perform with computing device be realized, so as to being stored in
Performed in storage device by computing device, they are either fabricated to each integrated circuit modules respectively or by them
Multiple modules or step single integrated circuit module is fabricated to realize.So, the present invention is not restricted to any specific hard
Part and software are combined.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (13)
1. a kind of channel condition information CSI processing methods, it is characterised in that including：
User equipment (UE) receives high-rise configuration signal, wherein, the high-rise configuration signal includes multiple corresponding to rank information RI's
Power parameter, the power parameter is downlink physical Data Shared Channel PDSCH each resource element ENERGY E PRE and CSI-
RS EPRE ratio p-C；
The UE carries out channel survey using the channel condition information received-reference symbol CSI-RS or public reference signal CRS
Amount；
The UE determines CSI using the result and the power parameter of the channel measurement, and reports the CSI.
2. according to the method described in claim 1, it is characterised in that
The power parameter corresponding to RI successively decreases with being incremented by for the RI.
3. method according to claim 2, it is characterised in that RI is that 1 to the natural number between N, N is 2,4 or 8.
4. method according to claim 2, it is characterised in that corresponding to one or more RI power parameter
Value or span are identical.
5. method according to any one of claim 1 to 4, it is characterised in that
RI=1, p-C=a1；RI=2, p-C=a2；RI=3, p-C=a3；RI=4, p-C=a3；Wherein, a1, a2, a3 are real
Number, and meet a1 >=a2 >=a3.
6. method according to any one of claim 1 to 4, it is characterised in that
RI=1, p-C=b1；RI=2, p-C=b2；RI=3, p-C=b3；RI=4, p-C=b3；RI=5 to 8, p-C=b4；
Wherein, b1, b2, b3, b4 are real numbers, and meet b1 >=b2 >=b3 >=b4.
7. a kind of channel condition information CSI processing methods, it is characterised in that including：
Multiple power parameters corresponding to rank information RI in the high-rise configuration signal of base station configuration, the power parameter is downlink physical
Data Shared Channel PDSCH EPRE and CSI-RS EPRE ratio p-C；
The high-rise configuration signal for carrying the power parameter is sent to user equipment (UE) by the base station；
The base station is received uses CSI determined by the result and the power parameter of channel measurement from the UE.
8. method according to claim 7, it is characterised in that multiple in the high-rise configuration signal of base station configuration to correspond to order letter
Breath RI power parameter includes：
The power parameter corresponding to RI of the base station configuration successively decreases with being incremented by for the RI.
9. method according to claim 8, it is characterised in that wherein, RI be 1 to the natural number between N, N be 2,4 or
8。
10. method according to claim 9, it is characterised in that corresponding to one or more RI power parameter
Value or span it is identical.
11. a kind of channel condition information CSI processing units, applied to user equipment (UE), it is characterised in that including：
First receiving module, for receiving high-rise configuration signal, wherein, the high-rise configuration signal, which includes multiple orders that correspond to, to be believed
RI power parameter is ceased, the power parameter is downlink physical Data Shared Channel PDSCH each resource element ENERGY E PRE
With CSI-RS EPRE ratio p-C；
Measurement module, for using the channel condition information received-reference symbol CSI-RS or public reference signal CRS progress
Channel measurement；
Determining module, CSI is determined using the result and the power parameter of the channel measurement；
Reporting module, for reporting the CSI.
12. a kind of channel condition information CSI processing units, applied to base station, it is characterised in that including：
Configuration module, for configuring multiple power parameters corresponding to rank information RI in high-rise configuration signal, the power parameter
It is downlink physical Data Shared Channel PDSCH each resource element ENERGY E PRE and CSI-RS EPRE ratio p-C；
Sending module, for the high-rise configuration signal for carrying the power parameter to be sent into user equipment (UE)；
Second receiving module, for receiving determined by the result and the power parameter of the use channel measurement from the UE
The CSI.
13. a kind of channel condition information CSI processing systems, it is characterised in that including：
First CSI processing units, for receiving high-rise configuration signal, wherein, the high-rise configuration signal includes multiple correspond to
Rank information RI power parameter；And use the channel condition information received-reference symbol CSI-RS or public reference signal
CRS carries out channel measurement；And the result and the power parameter using the channel measurement determine CSI, and report described
CSI, wherein, the power parameter is downlink physical Data Shared Channel PDSCH each resource element ENERGY E PRE and CSI-
RS EPRE ratio p-C；
2nd CSI processing units, for configuring multiple power parameters corresponding to rank information RI in high-rise configuration signal；And will
The high-rise configuration signal for carrying the power parameter is sent to user equipment (UE)；And reception uses letter from the UE
CSI determined by the result and the power parameter of road measurement.
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|---|---|---|---|
| CN201110111805.XA CN102201897B (en) | 2011-04-29 | 2011-04-29 | Channel condition information processing method, apparatus and system |
| PCT/CN2011/084685 WO2012146041A1 (en) | 2011-04-29 | 2011-12-26 | Channel state information processing method, apparatus and system |
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| CN201110111805.XA CN102201897B (en) | 2011-04-29 | 2011-04-29 | Channel condition information processing method, apparatus and system |
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| CN102201897B (en) * | 2011-04-29 | 2017-09-15 | 中兴通讯股份有限公司 | Channel condition information processing method, apparatus and system |
| CN102255689B (en) * | 2011-07-08 | 2018-05-04 | 中兴通讯股份有限公司 | A kind of processing method of channel condition information, apparatus and system |
| CN102315871B (en) * | 2011-09-30 | 2017-03-29 | 中兴通讯股份有限公司 | The processing method of aperiodic channel condition information, apparatus and system |
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