CN104079374B - Method, device and user equipment that real-time regulation channel quality is indicated - Google Patents
Method, device and user equipment that real-time regulation channel quality is indicated Download PDFInfo
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Abstract
The present invention relates to the method that real-time regulation channel quality in a kind of user equipment in the descending cordless communication network of FDD is indicated, methods described comprises the following steps：Non-zero power channel state information reference signals configuration information, interferometry resource configuration information and codebook configuration information are received from the descending cordless communication network of the FDD；Channel is measured according to the non-zero power channel state information reference signals configuration information to obtain the first channel information, and according to first channel information and codebook configuration information selection pre-coding matrix index；And the first residual interference is determined according to first channel information and selected pre-coding matrix index.The first residual interference is introduced according to method of the present invention such that it is able to which regulation channel quality is indicated and reports more accurate channel quality instruction to base station in real time in a user device, and then improves the performance of the descending wireless network of FDD.
Description
Technical field
The present invention relates to wireless communication technology, in particular it relates to a kind of in the descending cordless communication network of FDD
User equipment in real-time regulation channel quality indicate method and apparatus and a kind of user equipment including such device.
Background technology
In the descending cordless communication network of FDD, user equipment can be by measured channel condition information
(CSI：Channel State Infomation) base station is fed back to, so that base station can set its scheduling and/or ripple
Such information is taken into account during beam shaping rule.Among these information, channel quality indicates (CQI：Channel
Quality Indication) value of feedback be one of wherein mostly important CSI feedback parameter, the value of feedback will be very big
The performance of the descending cordless communication network of FDD is influenceed in degree.
In the signaling of existing LTE-A Rel-10/Rel-11, the configuration parameter of CQI regulations to be used in user equipment side
Only Pc, parameter Pc is defined as the ratio of PDSCH EPRE and CSI-RS EPRE, however, because it needs to believe by RRC
Make configuring, this causes to expect that rational value has to spend longer time that this is for improving the descending of FDD
The performance of cordless communication network is undesirable.
The content of the invention
According to the understanding to background technology, if it is possible to provide a kind of in the descending cordless communication network of FDD
Real-time regulation channel quality is indicated in user equipment method, device and the user equipment comprising the device are adjusted in real time
Channel quality is indicated, and that will be highly profitable.
The first aspect of the present invention is proposed in a kind of user equipment in the descending cordless communication network of FDD
The method that real-time regulation channel quality is indicated, methods described comprises the following steps：
L. non-zero power channel state information reference signals are received from the descending cordless communication network of the FDD to match somebody with somebody
Confidence breath, interferometry resource configuration information and codebook configuration information；
M. channel is measured according to the non-zero power channel state information reference signals configuration information to obtain the first channel
Information, and according to first channel information and codebook configuration information selection pre-coding matrix index；And
N. the first residual interference is determined according to first channel information and selected pre-coding matrix index.
The first residual interference is introduced according to method of the present invention such that it is able to adjust in real time in a user device
Channel quality is indicated and reports more accurate channel quality instruction to base station, and then improves the descending wireless network of FDD
The performance of network.
It is further comprising the steps of before the step l according to one embodiment of the present of invention：
B. received about whether enabling the real-time regulation channel matter from the descending cordless communication network of the FDD
The instruction of the method for amount instruction judges whether channel quality meets predetermined first condition and/or pre- by the user equipment
Fixed third condition；And
- receiving the instruction that enables the method that the real-time regulation channel quality is indicated or described predetermined first
When part meets, enable subsequent step and determine first residual interference, do not enable the real-time regulation channel matter until receiving
The instruction of the method for amount instruction meets the predetermined third condition；
- receiving the instruction that does not enable the method that the real-time regulation channel quality is indicated or the described predetermined 3rd
When condition meets, subsequent step is not enabled, the instruction of the method that the real-time regulation channel quality is indicated is enabled until receiving
Or meet the predetermined first condition.
In this way such that it is able to judged by user equipment itself or indicate to indicate from network reception is relevant
Whether user equipment needs to enable according to method of the present invention, and terminates according to this hair when meeting certain predetermined condition
The bright described method for adjusting channel quality instruction in real time.
According to one embodiment of the present of invention, the predetermined first condition is that the bit error rate exceedes the first predetermined threshold
Value and not enabled subsequent step determine first residual interference；The predetermined third condition is enabled follow-up step
Suddenly determine first residual interference and the bit error rate exceedes predetermined first threshold, wherein, the bit error rate is user equipment
The reception bit error rate in the range of certain hour.
It is further comprising the steps of after the step n according to one embodiment of the present of invention：
O. the first interference information is measured according to the interferometry resource configuration information；And
P. the interference that the channel quality of feedback is indicated is determined according to first interference information and first residual interference
And noise section.
In this way such that it is able to additionally determine interference and the noise section of fed back channel quality instruction,
Indicate to prepare by the channel quality that follow-up determination is entirely fed back.
According to one embodiment of the present of invention, methods described is further comprising the steps of：
R. the channel quality of the feedback is determined according to first channel information and selected pre-coding matrix index
The signal section of instruction.
In this way such that it is able to additionally determine the signal section that fed back channel quality is indicated, be follow-up
The channel quality that is entirely fed back of determination indicate to prepare.
According to one embodiment of the present of invention, methods described is further comprising the steps of：
S. the signal section that the channel quality according to the feedback is indicated and the interference that the channel quality of the feedback is indicated
The channel quality for determining the feedback with noise section is indicated.
Just can combine the signal section of above-mentioned channel quality instruction in this way and interference is obtained with noise section
Indicated to the channel quality for being fed back, the base station indicated to receive the fed back channel quality can more reasonably
Implement scheduling, so as to optimize the general performance of the descending cordless communication network of the FDD.
According to one embodiment of the present of invention, methods described is applied to the descending multipoint cooperative system of FDD, its
In, in the step l receive corresponding at least two channel condition information processes each channel condition information process extremely
Non-zero power channel state information reference signals configuration information, interferometry resource configuration information described in few two groups.
Just successfully will can be applied to come among multipoint cooperative system according to method of the present invention in this way.
It is further comprising the steps in the step n according to one embodiment of the present of invention：
- judge whether predetermined second condition meets and thereby determine that first residual interference, wherein, it is described predetermined
Second condition is that the whole channel condition information processes for being configured have different non-zero power channel state information reference signals
Configuration information and identical interferometry resource configuration information；
- if the predetermined second condition is met, with least two the configured channel condition information processes
Corresponding first residual interference is equal to corresponding with least two the configured channel condition information processes each
From residual interference sum；
- if the predetermined second condition is unsatisfactory for, enter with least two the configured channel condition informations
Corresponding first residual interference of journey is equal to corresponding with least two the configured channel condition information processes
Respective residual interference,
Wherein, the non-zero power according to each group corresponding with least two the configured channel condition information processes
Rate channel state information reference signals configuration information, interferometry resource configuration information and codebook configuration information determine described each
From residual interference.
The output valve of residual interference just can be correspondingly determined according to the particular content of configuration information in this way.
Additionally, the second aspect of the present invention proposes a kind of real-time regulation in the descending cordless communication network of FDD
The device that channel quality is indicated, described device includes：
- residual interference computing module, it is according to corresponding with least two channel condition information processes for being configured each
From non-zero power channel state information reference signals configuration information and codebook configuration information calculate respective residual interference；
- judge module, it judges whether predetermined second condition meets, wherein, the predetermined second condition is to be matched somebody with somebody
At least two channel condition information processes put have different non-zero power channel state information reference signals configuration informations and
Identical interferometry resource configuration information；And
- residual interference output module, it exports corresponding residual interference value according to the judged result of the judge module, its
In,
- if the predetermined second condition is met, with least two the configured channel condition information processes
The corresponding residual interference value is equal to corresponding with least two the configured channel condition information processes respective
Residual interference sum；
- if the predetermined second condition is unsatisfactory for, enter with least two the configured channel condition informations
The corresponding residual interference value of journey is equal to corresponding with least two the configured channel condition information processes each
From residual interference.
According to one embodiment of the present of invention, described device also includes：
- interference sections computing module, it is provided according to the output of the residual interference output module and by the interferometry
The interference information that source configuration information draws calculates the interference sections that the channel quality of feedback is indicated.
Finally, the third aspect of the present invention proposes a kind of user equipment, its implementation basis the first aspect of the present invention institute
In the user equipment in the descending cordless communication network of FDD stated real-time regulation channel quality indicate method or
Including according to real-time in the user equipment in the descending cordless communication network of FDD described in the second aspect of the present invention
The device that regulation channel quality is indicated.
First is introduced in user equipment according to method of the present invention, device and comprising the device remaining dry
Disturb such that it is able to which regulation channel quality is indicated and reports more accurate channel quality to base station in real time in a user device
Indicate, and then improve the performance of the descending wireless network of FDD.
Brief description of the drawings
The following detailed description to non-limiting example, other spies of the invention are read by referring to accompanying drawing
Levy, objects and advantages will become more apparent upon.
Fig. 1 is shown according to the real-time regulation channel matter in the descending cordless communication network of FDD of the present invention
The schematic diagram of the method for amount instruction；
Fig. 2 shows the flow chart of the one embodiment according to method of the present invention；And
Fig. 3 shows the flow chart of the one embodiment according to method of the present invention.
In figure, through different diagrams, same or similar reference represents same or analogous device (module)
Or step.
Specific embodiment
In the specific descriptions of following preferred embodiment, by the accompanying drawing with reference to appended by constituting a present invention part.Institute
Attached accompanying drawing has been illustrated by way of example can realize specific embodiment.The embodiment of example is not intended as
Limit all embodiments of the invention.It is appreciated that without departing from the scope of the present invention, it is possible to use other
Embodiment, it is also possible to carry out structural or logicality modification.Therefore, specific descriptions below are simultaneously nonrestrictive, and this
The scope of invention is defined by the claims appended hereto.
Real-time regulation channel quality refers in the user equipment that Fig. 1 shows in the descending cordless communication network of FDD
The schematic diagram of the method shown.As illustrated, the method at least comprises the following steps：
First, user equipment 100 should receive non-zero power channel from the descending cordless communication network of the FDD
State information reference signals configuration information (NZP CSI-RS), interferometry resource (IMR) configuration information and codebook configuration letter
Breath (Codebook)；
Then, user equipment 100 is matched somebody with somebody in module channel measurement 110 according to non-zero power channel state information reference signals
Information measurement channel is put to obtain the first channel information, and according to first channel information and above-mentioned in PMI selections 120
Codebook configuration information selection pre-coding matrix index (Precoding Matrix Index：PMI)；And
Finally, according to above-mentioned first channel information and selected pre-coding matrix index in residual interference calculates 130
Determine the first residual interference.
So far, the calculating of the first residual interference of core of the invention is just accomplished.
First is introduced in user equipment according to method of the present invention, device and comprising the device remaining dry
Disturb such that it is able to which regulation channel quality is indicated and reports more accurate channel quality to base station in real time in a user device
Indicate, and then improve the performance of the descending wireless network of FDD.
Alternatively, it is further comprising the steps of before the method is implemented according to one embodiment of the present invention：
B. received about whether enabling above-mentioned real-time regulation channel quality from the descending cordless communication network of FDD
The instruction of the method for instruction judges whether channel quality meets predetermined first condition and/or predetermined by the user equipment
Third condition；And
- receiving the instruction of the method for enabling above-mentioned real-time regulation channel quality instruction or above-mentioned predetermined first
When condition meets, enable subsequent step and determine the first residual interference, do not enable the instruction of real-time regulation channel quality until receiving
Method instruction or meet predetermined third condition；
- meet in the instruction or predetermined third condition for receiving the method for not enabling the instruction of real-time regulation channel quality
When, subsequent step is not enabled, until receiving the instruction of the method for enabling the instruction of real-time regulation channel quality or meeting predetermined
First condition.
Additionally, according to one embodiment of the present invention, above-mentioned predetermined first condition is super for the bit error rate
Cross predetermined first threshold and not enabled subsequent step determines the first residual interference；Predetermined third condition is enabled
Subsequent step determines the first residual interference and the bit error rate exceedes predetermined first threshold, wherein, the bit error rate exists for user equipment
The reception bit error rate in the range of certain hour.
However, those skilled in the art is it should be appreciated that first residual interference can not be fed directly to base station, accordingly
Ground, it should which supporting other calculating simultaneously ultimately form the channel quality instruction that can feed back to base station.This requires following attached
Plus the step of.
Additionally, according to one embodiment of the present invention, also include after above-mentioned method and step following
Step：
O. first interference information is measured according to above-mentioned interferometry resource configuration information in interferometry 150；And
P. in interference sections 160 according to above-mentioned first interference information and by residual interference calculate 130 draw it is first residual
Disturb the interference and noise section for determining that the channel quality of feedback is indicated in Yugan.
Additionally, according to one embodiment of the present invention, the method is further comprising the steps of：
R. the letter of feedback is determined according to the first channel information and selected pre-coding matrix index in channel strip 140
The signal section that road quality is indicated.
Then, can calculate what is comprehensively fed back in 170 in CQI according to channel strip obtained above and interference sections
Channel quality is indicated, and specifically, the method is further comprising the steps of：
S. the signal section that the channel quality according to feedback is indicated and the interference that the channel quality of feedback is indicated and noise portion
The channel quality for determining feedback is divided to indicate.
Above-mentioned foundation method of the present invention can be applied to the descending multipoint cooperative system of FDD, wherein, will
Receive the non-zero power at least described in two groups of each the channel condition information process corresponding at least two channel condition information processes
Rate channel state information reference signals configuration information, interferometry resource configuration information.
Under the application scenarios of the descending multipoint cooperative system of FDD, following steps are will further comprise：
- judge whether predetermined second condition meets and thereby determine that the first residual interference, wherein, predetermined second condition
For the whole channel condition information processes for being configured have different non-zero power channel state information reference signals configuration informations
With identical interferometry resource configuration information；
If-meet predetermined second condition, it is corresponding with least two channel condition information processes for being configured
First residual interference is equal to the respective residual interference corresponding with least two channel condition information processes for being configured
Sum；
- if predetermined second condition is unsatisfactory for, at least two channel condition information processes with configuration are corresponding
First residual interference is equal to the respective residual interference corresponding with least two channel condition information processes of configuration,
Wherein, the non-zero power letter according to each group corresponding with least two channel condition information processes for being configured
Channel state information reference signal configuration information, interferometry resource configuration information and codebook configuration information determine described respective
Residual interference.
It will be understood by those of skill in the art that multipoint cooperative system here can be entered comprising multiple channel condition informations
, be specifically described according to method of the present invention respectively for refer to the attached drawing 2 respectively and accompanying drawing 3 below by journey (CSI Process)
Concrete application scene and parameters configuring condition.
Fig. 2 shows the flow chart of the one embodiment according to method of the present invention.In this embodiment, have altogether
Two CQI processes, i.e. CQI processes #1 and CQI process #2.As can be seen from the figure calculated by the channel measurement 110 in Fig. 1
Draw corresponding to first or the 2nd CQI processes the first channel information and distinguish by the PMI#1/#2 that draw of PMI selections 120
Be input to residual interference #1 and residual interference #2, by the module calculated corresponding to CQI process #1 and CQI processes #2's
Residual interference needs to be for further processing by the following interference sections 160 for judging just be output in Fig. 1.Wherein judge bar
Part is that there are at least two configured channel condition information processes different non-zero power channel state information reference signals to match somebody with somebody
Confidence ceases and identical interferometry resource configuration information, and as CQI processes #1 and CQI process #2 has respectively in this embodiment
There are different non-zero power channel state information reference signals configuration informations and identical interferometry resource configuration information, below
It is divided to two kinds of different situations to be illustrated the embodiment.Then, by according to the output of RIC in interference sections 160 in Fig. 1
Residual interference generally is calculated with respective interference #1 and interference #2 summations, the residual interference generally will be used for then
Feedback CQI acquisition.
First, when the predetermined condition meets, for example configuration information is as shown in the table：
Table 1：CQI process configuration informations when predetermined condition meets
| CSI processes | Channel strip | Interference sections |
| CSI processes #1 | NZP CSI-RS#1 | IMR#1 |
| CSI processes #2 | NZP CSI-RS#2 | IMR#1 |
In the case of going out as shown in table 1, the predetermined condition is to meet, now：
And
Wherein,AndThe signal power obtained by NZP CSI-RS#1/#2 is represented respectively, and I is represented by IMR#1 institutes
The interference of measurement, Δ1And Δ2The residual interference corresponding with NZPCSI-RS#1/#2 is represented respectively.
Secondly, when being unsatisfactory for, such as following configuration：
Table 2：CQI process configuration informations when predetermined condition is unsatisfactory for
| CSI processes | Channel strip | Interference sections |
| CSI processes #1 | NZP CSI-RS#1 | IMR#1 |
| CSI processes #2 | NZP CSI-RS#2 | IMR#2 |
Respective residual interference will be exported in this case and be consequently formed the CQI of feedback, respectively：
Wherein, I1And I2Represent interference as measured by IMR#1/#2, the representative meaning of remaining each symbol as described above,
This is repeated no more.
The embodiment of above-mentioned Fig. 2 and subsequent two embodiments with specific configuration information are elaborated with two
Situation during CQI processes, will be illustrated with situation when being three CQI processes by means of Fig. 3 below.
Fig. 3 shows the flow chart of the one embodiment according to method of the present invention.
First, when predetermined condition meets, i.e., when it configures following：
Table 3：CQI process configuration informations when predetermined condition meets
| CSI processes | Channel strip | Interference sections |
| CSI processes #1 | NZP CSI-RS#1 | IMR#1 |
| CSI processes #2 | NZP CSI-RS#2 | IMR#1 |
| CSI processes #3 | NZP CSI-RS#3 | IMR#1 |
In the case of going out as shown in table 3, the predetermined condition is to meet, now：
Wherein,AndRepresent the signal power obtained by NZP CSI-RS#1/#2/#3 respectively, I represent by
Interference measured by IMR#1, Δ1、Δ2And Δ3The residual interference corresponding with NZPCSI-RS#1/#2/#3 is represented respectively.
When being unsatisfactory for, such as following configuration：
Table 4：CQI processes configuration information (situation 1) when predetermined condition is unsatisfactory for
| CSI processes | Channel strip | Interference sections |
| CSI processes #1 | NZP CSI-RS#1 | IMR#1 |
| CSI processes #2 | NZP CSI-RS#2 | IMR#2 |
| CSI processes #3 | NZP CSI-RS#3 | IMR#3 |
Respective residual interference will be exported in this case and be consequently formed the CQI of feedback, respectively：
Wherein, the representative meaning of each symbol is as described above, will not be repeated here.
Equally, it may have others are unsatisfactory for the configuration of predetermined condition, for example：
Table 5：CQI processes configuration information (situation 2) when predetermined condition is unsatisfactory for
| CSI processes | Channel strip | Interference sections |
| CSI processes #1 | NZP CSI-RS#1 | IMR#1 |
| CSI processes #2 | NZP CSI-RS#1 | IMR#2 |
| CSI processes #3 | NZP CSI-RS#1 | IMR#3 |
Now, respective residual interference will be exported and is consequently formed the CQI of feedback, respectively：
Wherein, I3Interference measured by middle IMR#3, the representative meaning of remaining each symbol is as described above, will not be repeated here.
In addition to above-mentioned method, the invention allows for a kind of device for implementing above-mentioned method, in FDD
The device that real-time regulation channel quality is indicated in descending cordless communication network includes：
- residual interference computing module, it is according to corresponding with least two channel condition information processes for being configured each
From non-zero power channel state information reference signals configuration information and codebook configuration information calculate respective residual interference；
- judge module, it judges whether predetermined second condition meets, wherein, predetermined second condition is configured
At least two channel condition information processes have different non-zero power channel state information reference signals configuration information and identical
Interferometry resource configuration information；And
- residual interference output module, it exports corresponding residual interference value according to the judged result of judge module, wherein,
If-meet predetermined second condition, it is corresponding with least two channel condition information processes for being configured
Residual interference value is equal to the respective residual interference sum corresponding with least two channel condition information processes for being configured；
- if predetermined second condition is unsatisfactory for, it is corresponding with least two channel condition information processes for being configured
Residual interference value be equal to the respective residual interference corresponding with least two channel condition information processes for being configured.
According to one embodiment of the present invention, the device also includes：
- interference sections computing module, it matches somebody with somebody confidence according to the output of residual interference output module and by interferometry resource
The interference information that breath draws calculates the interference sections that the channel quality of feedback is indicated.
Additionally, the invention allows for a kind of user equipment, its implementation basis it is above-mentioned be for example embodied as it is illustrated in fig. 1
Method or including according to device of the invention.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be in other specific forms realized.Therefore, no matter
How from the point of view of, embodiment all should be regarded as exemplary, and be nonrestrictive.Additionally, it will be evident that " including " word is not
Other elements and step are excluded, and wording " one " is not excluded for plural number.The multiple element stated in device claim also may be used
To be realized by an element.The first, the second grade word is used for representing title, and is not offered as any specific order.
Claims (9)
1. determine residual interference for real-time regulation in a kind of user equipment in the descending cordless communication network of FDD
The method that channel quality is indicated, methods described comprises the following steps：
According to the respective non-zero power channel condition information corresponding with least two channel condition information processes for being configured
Reference signal configuration information and codebook configuration information calculate respective residual interference；
Judge whether predetermined second condition meets, wherein, the predetermined second condition is at least two configured channels
Status information process has different non-zero power channel state information reference signals configuration information and identical interferometry moneys
Source configuration information；
It is corresponding with least two the configured channel condition information processes if meeting the predetermined second condition
The residual interference value be equal to the respective remnants corresponding with least two the configured channel condition information processes
Interference sum；
It is relative with least two the configured channel condition information processes if being unsatisfactory for the predetermined second condition
The residual interference value answered is equal to corresponding with least two the configured channel condition information processes respective residual
Disturb Yugan.
2. method according to claim 1, wherein calculate respective residual interference including：
From the descending cordless communication network of the FDD receive non-zero power channel state information reference signals configuration information,
Interferometry resource configuration information and codebook configuration information；
Channel is measured according to the non-zero power channel state information reference signals configuration information to obtain respective channel information,
And according to the respective channel information and codebook configuration information selection pre-coding matrix index；And
Respective residual interference is determined according to the respective channel information and selected pre-coding matrix index.
3. method according to claim 1, wherein, it is further comprising the steps of before respective residual interference is calculated：
Received from the descending cordless communication network of the FDD and indicated about whether enabling the real-time regulation channel quality
Method instruction or judge whether channel quality meets predetermined first condition and/or predetermined by the user equipment
Three conditions；And
It is full in the instruction or the predetermined first condition for receiving the method for enabling the real-time regulation channel quality instruction
When sufficient, enable subsequent step and determine the respective residual interference, do not enable the real-time regulation channel quality until receiving
The instruction of the method for instruction meets the predetermined third condition；
Receiving the instruction of the method for not enabling the real-time regulation channel quality instruction or the predetermined third condition
When meeting, do not enable subsequent step, enabled until receiving the method that the real-time regulation channel quality is indicated instruction or
Meet the predetermined first condition,
Wherein, the predetermined first condition is that the bit error rate determines more than predetermined first threshold and not enabled subsequent step
The respective residual interference；The predetermined third condition is that enabled subsequent step determines the respective residual interference
And the bit error rate exceedes predetermined first threshold, wherein, the bit error rate is reception of the user equipment in the range of certain hour
The bit error rate.
4. method according to claim 2, wherein, it is further comprising the steps of after respective residual interference is calculated：
Respective interference information is measured according to the interferometry resource configuration information；And
According to the respective interference information and the respective residual interference determine interference that the channel quality of feedback indicates and
Noise section.
5. method according to claim 4, wherein, methods described is further comprising the steps of：
The channel quality for determining the feedback according to the respective channel information and selected pre-coding matrix index is indicated
Signal section.
6. method according to claim 5, wherein, methods described is further comprising the steps of：
The signal section that channel quality according to the feedback is indicated and the interference that the channel quality of the feedback is indicated and noise
Part determines that the channel quality of the feedback is indicated.
7. it is a kind of to determine that residual interference is indicated for real-time regulation channel quality in the descending cordless communication network of FDD
Device, described device includes：
- residual interference computing module, it is according to corresponding with least two channel condition information processes for being configured respective
Non-zero power channel state information reference signals configuration information and codebook configuration information calculate respective residual interference；
- judge module, it judges whether predetermined second condition meets, wherein, the predetermined second condition is configured
At least two channel condition information processes have different non-zero power channel state information reference signals configuration information and identical
Interferometry resource configuration information；And
- residual interference output module, it exports corresponding residual interference value according to the judged result of the judge module, wherein,
If-meet the predetermined second condition, it is relative with least two the configured channel condition information processes
The residual interference value answered is equal to corresponding with least two the configured channel condition information processes respective residual
Disturb sum in Yugan；
- if the predetermined second condition is unsatisfactory for, with least two the configured channel condition information process phases
The corresponding residual interference value is equal to corresponding with least two the configured channel condition information processes respective
Residual interference.
8. device according to claim 7, it is characterised in that also include：
- interference sections computing module, it matches somebody with somebody according to the output of the residual interference output module and by the interferometry resource
The interference information that confidence breath draws calculates the interference sections that the channel quality of feedback is indicated.
9. a kind of user equipment, method any one of its implementation basis claim 1 to 6 or including will according to right
The device for asking the determination residual interference described in 7 or 8 to be indicated for real-time regulation channel quality.
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| The constraints of CSI processes for CoMP;Alcatel-Lucent, Alcatel-Lucent Shanghai Bell;《3GPP TSG RAN WG1 meeting #70bis，R1-124411》;20121012;第1-3页 * |
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Address after: Pudong New Area, Pudong Jinqiao Ning Bridge Road, No. 388, No. Co-patentee after: Alcatel Optical Networks Israe Patentee after: Shanghai NOKIA Baer Limited by Share Ltd Address before: 201206 Shanghai, Pudong Jinqiao Ning Bridge Road, No. 388, No. Co-patentee before: Alcatel Optical Networks Israe Patentee before: Shanghai Alcatel-Lucent Co., Ltd. |