CN104348584B - A kind of method for realizing channel-quality feedback and prediction for ABS mechanism - Google Patents
A kind of method for realizing channel-quality feedback and prediction for ABS mechanism Download PDFInfo
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- CN104348584B CN104348584B CN201310347159.6A CN201310347159A CN104348584B CN 104348584 B CN104348584 B CN 104348584B CN 201310347159 A CN201310347159 A CN 201310347159A CN 104348584 B CN104348584 B CN 104348584B
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- 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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- 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
- H04B7/0632—Channel quality parameters, e.g. channel quality indicator [CQI]
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- H—ELECTRICITY
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- 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
- H04L1/0027—Scheduling of signalling, e.g. occurrence thereof
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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
- H04L1/0028—Formatting
- H04L1/0031—Multiple signaling transmission
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- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0033—Systems modifying transmission characteristics according to link quality, e.g. power backoff arrangements specific to the transmitter
- H04L1/0035—Systems modifying transmission characteristics according to link quality, e.g. power backoff arrangements specific to the transmitter evaluation of received explicit signalling
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- 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
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/1607—Details of the supervisory signal
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- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/1607—Details of the supervisory signal
- H04L1/1671—Details of the supervisory signal the supervisory signal being transmitted together with control information
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- H—ELECTRICITY
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- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
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- H04L1/20—Arrangements for detecting or preventing errors in the information received using signal quality detector
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- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
- H04W72/542—Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality
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- H—ELECTRICITY
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- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/06—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
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- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
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- H04W88/10—Access point devices adapted for operation in multiple networks, e.g. multi-mode access points
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Abstract
The present invention relates to be directed to ABS mechanism in the serving BS in the wireless communication system of isomery to realize channel-quality feedback and the method predicted, the wireless communication system of isomery includes serving BS, user equipment and at least two macro base stations, the first instruction is sent to user equipment including serving BS, the restricted measurement of the channel condition information of two groups of subframe subsets is carried out with instruction user equipment；Serving BS receives the restricted measurement result of the channel condition information of first group of subframe subset from user equipment and the channel quality of each subframe is predicted according to restricted measurement result, so as to carry out link adaptation, channel-aware scheduling and packet transmission and receive HARQ feedback；Serving BS judges whether to need the restricted measurement result for the channel condition information for enabling second group of subframe subset according to HARQ feedback.Method according to the present invention can realize channel-quality feedback and the more accurate channel quality prediction for ABS mechanism, so as to improve the performance of whole wireless communication system.
Description
Technical field
The present invention relates to wireless communication field, more particularly, to a kind of service in the wireless communication system of isomery
In base station channel-quality feedback and the method and a kind of in the wireless communication system of isomery of prediction are realized for ABS mechanism
The method for realizing channel-quality feedback and prediction for ABS mechanism auxiliary in user equipment.
Background technology
Heterogeneous network (Heterogeneous network：HetNet) can be neatly due to its specific attribute
Dispose at low cost, and can by using the combination of macro base station, micro-base station, femto base station and relay base station, to
User from anywhere in network provides unified broadband experience.In order to improve the performance of such heterogeneous network, one can be entered
Step introduces the enhancing technology spread over, so as to allow more user terminals to be directly benefit from the base station of low-power, such as
Micro-base station, femto base station and relay base station.However, the macro base station with stronger downstream signal intensity be present
Under, in order to allow user terminal to be serviced from the base station of low-power consumption, low power base station needs to be coordinated with macro base station, real
Now to control channel and the interference coordination of data channel.Therefore, LTE-A proposes eICIC/ABS (Almost Blank
Subframe technology), as an important interference coordination technique scheme in heterogeneous network.
Due to ABS subframes and non-ABS subframes be present, so the channel condition of user equipment is different on different time slots
's.Therefore, it is necessary to support the measurement of channel condition and report with suitable mechanism, this is also that the present invention will be discussed
Key content.
It is above-mentioned in order to solve the problems, such as, nowadays, have been proposed in the prior art based on two groups of measurement sub-frame modes
Method and defined in LTE-A.As a rule, two groups of measurement patterns are the abs modes according to dominant interference base station
Come what is determined, wherein, it is used for common subframe during one group of measurement pattern, and another group of measurement pattern is then to be used for ABS subframes.This two
Group measurement regularly or can be reported aperiodically to corresponding base station by user equipment.
However, the above method still has shortcomings.In fact, this method defined in LTE-A is only applicable to
In a corresponding network used abs mode be it is consistent in the case of be only being capable of normal work.Because if no
Same base station employs different abs modes, then only two groups of measurement patterns are probably then inadequate.Unless in whole service
Two groups of measurement patterns are dynamically configured in time, this will cause in huge RRC signaling expense.
In actual applications, eICIC/ABS patterns preferably will be adapted to environment, wherein, above-mentioned environment refers to user
Device distribution, business load and geometry framework etc..Therefore, as shown in figure 1, different macro base stations is due to its difference
Situation will have different abs modes.
It is apparent that in this case, it may be difficult to obtain the accurate channel quality of all subframes.In addition, the shifting of user equipment
Dynamic property will also make it that such situation is more bad.There is no accurate channel estimation, then will be difficult to carry out link adaptation and
Channel-aware is dispatched, and causes poor systematic function.
The content of the invention
According to the above-mentioned understanding to background technology and existing technical problem, the first aspect of the present invention proposes one kind
The method for realizing channel-quality feedback and prediction for ABS mechanism in serving BS in the wireless communication system of isomery, its
In, the wireless communication system of the isomery includes the serving BS, user equipment and at least two macro base stations, methods described bag
Include：
B. the serving BS sends the first instruction to the user equipment, to indicate that the user equipment carries out two groups of sons
The restricted measurement of the channel condition information of frame subset；
C. the serving BS receives the restricted of the channel condition information of first group of subframe subset from the user equipment
Measurement result and the channel quality that each subframe is predicted according to the restricted measurement result, so as to carry out link adaptation, letter
Road perceives scheduling and packet transmits and receives HARQ feedback；
D：The serving BS judges whether to need the channel shape for enabling second group of subframe subset according to the HARQ feedback
The restricted measurement result of state information：
- if it is not required, then methods described terminates；
- if desired, the serving BS to the user equipment send second instruction, with indicate the user equipment to
The serving BS reports the restricted measurement result of the channel condition information of second group of subframe subset, the serving BS
Each subframe in the step C is optimized according to the restricted measurement result of the channel condition information of second group of subframe subset
Channel quality prediction and methods described return in step C.
Channel-quality feedback and the more accurate letter for ABS mechanism can be realized according to method of the present invention
Road prediction of quality, so as to be the reasonable utilization for more effectively realizing radio channel resource, improve efficiency and improve whole nothing
The performance of line communication system provides strong guarantee.
According to one embodiment of the present of invention, first group of subframe subset is different from second group of subframe
Collection.
According to one embodiment of the present of invention, first group of subframe subset and second group of subframe subset are mutual
Mend.
According to one embodiment of the present of invention, also include before the step B：
A. the serving BS carries out the initialization of weight, and the weight is used for the pre- of the channel quality of each subframe
Survey.
According to one embodiment of the present of invention, by the channel shape according to second group of subframe subset in the step D
The restricted measurement result of state information updates the weight, to realize the prediction of the channel quality of optimization each subframe.
According to one embodiment of the present of invention, the serving BS is periodically from described in user equipment reception
The restricted measurement result of the channel condition information of first group of subframe subset.
According in one embodiment of the present of invention, the serving BS with PDCCH or extension PDCCH signalings come to
Second instruction described in the user device transmissions.
It is directed in addition, the second aspect of the present invention proposes in a kind of user equipment in the wireless communication system of isomery
The method that ABS mechanism auxiliary realizes channel-quality feedback and prediction, wherein, the wireless communication system of the isomery includes the clothes
Business base station, user equipment and at least two macro base stations, methods described include：
O. the user equipment receives the first instruction from the serving BS, and first instruction indicates the user equipment
Carry out the restricted measurement of the channel condition information of two groups of subframe subsets and send first group of subframe subset to the serving BS
Channel condition information restricted measurement result；
P. the user equipment receives the second instruction from the serving BS, and second instruction indicates the user equipment
The restricted measurement result of the channel condition information of second group of subframe subset is sent to the serving BS.
According to one embodiment of the present of invention, first group of subframe subset and second group of subframe subset are mutual
Mend.
According in one embodiment of the present of invention, the user equipment is by the channel status of second group of subframe subset
The restricted measurement result of information sends jointly to the serving BS with HARQ feedback.
The channel quality for ABS mechanism can be realized according to the method described in the first aspect of the present invention and second aspect
Feedback and more accurate channel quality prediction, so as to be the reasonable utilization for more effectively realizing radio channel resource, carry
High efficiency and the performance of the whole wireless communication system of raising provide strong guarantee.
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
Sign, objects and advantages will become more apparent upon.
Fig. 1 shows the schematic diagram according to the ABS implementations described in prior art；And
Fig. 2 shows the application scenarios being applicable according to method of the present invention；And
Fig. 3 shows the flow chart 300 according to one embodiment of method of the present invention.
In figure, through different diagrams, same or similar reference represents same or analogous device (module)
Or step.
Embodiment
In the specific descriptions of following preferred embodiment, by with reference to the appended accompanying drawing for forming a present invention part.Institute
Attached accompanying drawing, which has been illustrated by way of example, can realize specific embodiment.The embodiment of example is not intended as
Limit is according to all embodiments of the invention.It is appreciated that without departing from the scope of the present invention, other can be utilized
Embodiment, structural or logicality modification can also be carried out.Therefore, following specific descriptions and nonrestrictive, and this
The scope of invention is defined by the claims appended hereto.
Therefore, for configuring eICIC/ABS scene in heterogeneous network, the present invention, which proposes, a kind of new is used for channel
Quality Feedback and the method for prediction.Its central scope includes the following aspects：
First, serving BS will configure one group of restricted measurement Subset for being used for user equipment.According to the restricted measurement
Configuration, the user equipment will perform restricted channel condition information (Channel State Infomation：CSI) measure simultaneously
And it is reported to serving BS.As a rule, such report will be carried out periodically.Based on the CSI information, base station energy
Enough predict the channel quality in all subframes and perform corresponding link adaptation and channel-aware scheduling.
In data transmission procedure, base station will monitor the performance of HARQ transmission, if its mortality is more than certain threshold value, that
User equipment will be triggered and perform the measurement on second group of restricted measurement Subset, this second group restricted measurement also can be
It is pre-configured with.
Wherein, the triggering can be configured by PDCCH signalings, and the triggering can be also extended for notifying user equipment at this
Can the channel quality that measured on the second restricted sub-frame mode send back together with HARQ feedback comes.
The channel quality reporting come is sent back together with HARQ feedback by means of what is obtained, the base station can optimize channel
The prediction of quality, so as to obtain more accurate channel information, then, it can preferably optimize link adaptation and channel-aware is adjusted
Degree.
Fig. 1 shows the schematic diagram according to the ABS implementations described in prior art.The figure adds in background section
With description, repeat no more for brevity herein.
Fig. 2 shows the application scenarios being applicable according to method of the present invention.It is it can be seen that shown
User equipment (UE) will be influenceed while with service base station communication by multiple macro base stations, because user herein shown sets
Within coverages of the standby UE simultaneously in two macro base stations, in order to efficiently solve the influence of macro base station and reduced from
And optimizing the performance of wireless communication system, the present invention proposes the method realized in serving BS and user equipment, so as to
It is common to coordinate, realize the optimization of Radio Resource.
Design and the specific implementation process of the present invention is more at large illustrated below.
First, the present inventor has made following hypothesis：
Dominant interfering nodes corresponding to it are determined for each user equipment and are divided for each interfering nodes
With weight.Physically, the weight represents to be directed to some user equipment, the relation between its service node and interfering nodes, such as it
As shown in Fig. 2 and below equation：
First, base station will determine the main interference source of its received interference for each user equipment.Assuming that for
For the equipment k of family one share N number of dominant interfering nodes, then its disturb source vector be：
MInt (k)={ I1, I2..., IN} (1)
Equally, a weight vectors are defined for these leading interfering nodes：
W (k)={ w1, w2..., wN} (2)
The weight vectors are applied to below equation：
Wherein, S represents the useful signal received from service node, IiThe power received from i-th of interfering nodes is represented,
RSRP0The RSRP for the service node that expression is reported from user equipment, and RSRPiRepresent i-th of interference section by user equipment report
The RSRP of point.All weights should all be more than zero and be initialized as 1.0.These information produce when user equipment is opened,
And updated in handoff procedure.Base station can obtain the corresponding RSRP of the user equipment during thesei(i=0,1,
2 ..., N) information.
Then, base station will obtain the information of the abs mode of adjacent base station when needed by X2 interface, and the interface exists
Defined in LTE-A.
Next, base station will determine two groups of measurement sub-frame modes for each user equipment.
Specifically, first measurement sub-frame mode on, leading interfering nodes that there is following configuration, i.e. [A1,
A2..., AN], wherein, Ai(i=1,2 ..., N) ∈ { 0,1 }, and 1 represents it is ABS subframes, and 0 represents commonly (i.e. non-
ABS) subframe.
Second measurement sub-frame mode on, leading interfering nodes that there is following configuration, i.e. [B1, B2..., BN], its
In, Bi(i=1,2 ..., N) ∈ { 0,1 }, and 1 represents it is ABS subframes, and 0 represents common (i.e. non-ABS) subframe.
Preferably, this two groups of measurement sub-frame modes are complementary from the viewpoint of leading interfering nodes, such as：
[A1, A2, A3, A4]=[0,1,0,1], and [B1, B2, B3, B4]=[1,0,1,0].
Assuming that the measured CSI for first group of measurement sub-frame mode is SINRMeas, it will be all according to report configuration
Phase property or aperiodically report to base station.
When base station be target-subframe n make resource allocation (scheduling) when, base station by based on obtained abs mode determination for
The state of main interference for user equipment k, the state can be expressed as：
[Y1, Y2..., YN], wherein, Yi(i=1,2 ..., N) ∈ { 0,1 }, and 1 represents it is ABS subframes, and 0 expression is general
Logical (i.e. non-ABS) subframe.
And the base station will be based on below equation prediction channel condition, i.e.,：
Using the prediction, base station, which is able to carry out channel-aware, dispatches and determines MCS for corresponding transmission.
Next, in transmitting procedure, base station will monitor the performance of HARQ transmission, if the mortality of HARQ transmission exceedes
Some threshold value, then base station will trigger user equipment to perform the restricted measurement on the second restricted measurement Subset.Should
Triggering can be configured on the PDCCH of extension, its be used for notifying user equipment HARQ feedback whether should to corresponding
Restricted sub-frame mode on the channel quality that measures send back to come together.
If above-mentioned instruction is set, then the HARQ feedback message that should be derived from user equipment will be with limiting second
Measured CSI information is sent back together on temper frame collection comes.
If the CSI of the second group of measurement sub-frame mode received, then the weight of leading interfering nodes will be by by such as
Under type updates：
A the CSI for) assuming this report is SINRChannel。
B)
Wherein,
Δ is step-length.
C weight vectors W convergence) can be obtained by following circulation, i.e.,
While(|SINRChannel(dB)-SINRPre(dB) | ＞ δ)
Update according to equation (5)
End
Additionally, if reporting new RSRPi, then corresponding weight w will be updated according to below equationi：
If report the RSRP of one of user equipment0, then all weights related to the user equipment will be with
Below equation updates, i.e.,：
If RSRPiAnd RSRP0Report simultaneously, then corresponding weight will be reset as 1.0.
Finally, as described in above-mentioned steps, following base station will carry out institute using the weight newly updated
There is the prediction of the channel quality of subframe, then perform link adaptation and channel-aware scheduling etc..
Above-mentioned formula described below completely deduces process：
The jamming power (plus noise) for assuming initially that first group of measurement sub-frame mode is IMeas, and second group of measurement subframe mould
The jamming power of the jamming power (plus noise) of formula is IPre, then：
Therefore, desired channel quality is：
It is if being represented in a manner of dB：
And
So it can be obtained with reference to formula (2), (12), (13)：
Define normalization function：
Under the following conditions：
1、wi＞ 0 (16)
2、
So have：
Wherein, RSRP is linear value, according to gradient algorithm, is had：
Wherein,
Here, Δ will be dynamically determined so as to meet two above-mentioned constraintss, i.e. formula (16) and (17).
As shown in figure 3, it will be given below the specific embodiment of solution proposed by the invention.Can from figure
Go out the method for realizing channel-quality feedback and prediction for ABS mechanism in the wireless communication system of isomery, wherein, the isomery
Wireless communication system includes serving BS, user equipment and at least two macro base stations, and concrete scene is as shown in Fig. 2 this method bag
Include：
In step 320, serving BS sends the first instruction to user equipment, and two groups of subframes are carried out with instruction user equipment
The restricted measurement of the channel condition information of subset；Before this, additionally it is possible to carry out the initialization of weight in the step 310；
Next, in a step 330, serving BS receives the channel condition information of first group of subframe subset from user equipment
Restricted measurement result and the channel quality of each subframe is predicted according to restricted measurement result in step 340, so as to
Link adaptation, channel-aware scheduling and packet is carried out to transmit and receive HARQ feedback；
In step 350, serving BS judges whether to need to enable second group of subframe subset according to the HARQ feedback
The restricted measurement result of channel condition information：
- if it is not required, then this method terminates；
- if it is required, then serving BS sends the second instruction to user equipment in method and step 360, to indicate the use
Family equipment measures channel and reports the channel shape of second group of subframe subset to serving BS in step 380 in step 370
The restricted measurement result of state information, finally, serving BS is believed according to the channel status of second group of subframe subset in step 390
The restricted measurement result of breath optimizes above-mentioned weight, and continues to run with the method, as long as serving BS judges to feel the need to
The restricted measurement result of the channel condition information of second group of subframe subset is enabled, then above step 350 to 390 is repeated, with this
Back and forth, until the process terminates.
Channel-quality feedback and the more accurate letter for ABS mechanism can be realized according to method of the present invention
Road prediction of quality, so as to be the reasonable utilization for more effectively realizing radio channel resource, improve efficiency and improve whole nothing
The performance of line communication system provides strong guarantee.
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 realized in other specific forms.Therefore, no matter
How from the point of view of, embodiment all should be regarded as exemplary, and be nonrestrictive.In addition, it will be evident that the word of " comprising " one not
Exclude other elements and step, and wording "one" be 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 (10)
1. realize channel-quality feedback and prediction for ABS mechanism in a kind of serving BS in the wireless communication system of isomery
Method, wherein, the wireless communication system of the isomery includes the serving BS, user equipment and at least two macro base stations,
Methods described includes：
B. the serving BS sends the first instruction to the user equipment, to indicate that the user equipment carries out two groups of subframe
The restricted measurement of the channel condition information of collection；
C. the serving BS receives the restricted measurement of the channel condition information of first group of subframe subset from the user equipment
As a result the channel quality of each subframe and according to the restricted measurement result is predicted, so as to carry out link adaptation, channel sense
Know that scheduling and packet transmit and receive HARQ feedback；
D. the channel status that the serving BS judges whether to need to enable second group of subframe subset according to the HARQ feedback is believed
The restricted measurement result of breath：
- if it is not required, then methods described terminates；
- if desired, the serving BS sends the second instruction to the user equipment, to indicate the user equipment to described
Serving BS reports the restricted measurement result of the channel condition information of second group of subframe subset, the serving BS according to
The restricted measurement result of the channel condition information of second group of subframe subset optimizes the letter of each subframe in the step C
The prediction of road quality and methods described are returned in step C.
2. according to the method for claim 1, wherein, first group of subframe subset is different from second group of subframe
Collection.
3. according to the method for claim 1, wherein, first group of subframe subset and second group of subframe subset are mutual
Mend.
4. according to the method for claim 1, wherein, also include before the step B：
A. the serving BS carries out the initialization of weight, and the weight is used for the prediction of the channel quality of each subframe.
5. the method according to claim 11, wherein, by the channel shape according to second group of subframe subset in the step D
The restricted measurement result of state information updates the weight, to realize the prediction of the channel quality of optimization each subframe.
6. according to the method for claim 1, wherein, the serving BS is periodically from described in user equipment reception
The restricted measurement result of the channel condition information of first group of subframe subset.
7. according to the method for claim 1, wherein, the serving BS with PDCCH or extension PDCCH signalings come to
Second instruction described in the user device transmissions.
8. in a kind of user equipment in the wireless communication system of isomery for ABS mechanism auxiliary realize channel-quality feedback and
The method of prediction, wherein, the wireless communication system of the isomery includes serving BS, user equipment and at least two macro base stations,
Methods described includes：
The user equipment receives the first instruction from the serving BS, and first instruction indicates that the user equipment carries out two
The restricted measurement of the channel condition information of group subframe subset and the channel that first group of subframe subset is sent to the serving BS
The restricted measurement result of status information；
The user equipment, which performs, to be transmitted with the packet of the serving BS and sends HARQ feedback to the serving BS；
The user equipment receives the second instruction determined according to the HARQ feedback, second instruction from the serving BS
Indicate that the user equipment sends the restricted measurement knot of the channel condition information of second group of subframe subset to the serving BS
Fruit.
9. according to the method for claim 8, wherein, first group of subframe subset and second group of subframe subset are mutual
Mend.
10. according to the method for claim 8, wherein, the user equipment is by the channel shape of second group of subframe subset
The restricted measurement result of state information sends jointly to the serving BS with other HARQ feedback.
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