CN103716828B - A kind of interference measurement, control method and user equipment, dispatching method and base station - Google Patents
A kind of interference measurement, control method and user equipment, dispatching method and base station Download PDFInfo
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- CN103716828B CN103716828B CN201210370612.0A CN201210370612A CN103716828B CN 103716828 B CN103716828 B CN 103716828B CN 201210370612 A CN201210370612 A CN 201210370612A CN 103716828 B CN103716828 B CN 103716828B
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Abstract
The present invention provides a kind of interference detecting method, comprising: user equipment obtains channel quality according to interferometry resource and indicates；Wherein, the user equipment can only obtain the channel quality according to the interferometry resource in same observation window and indicate.The present invention also provides a kind of interference dispatching methods, base station receives one or more channel qualities instruction of user equipment to report, it is indicated according to channel quality, and whether the interferometry resource that is based on of downlink subframe to be scheduled and the channel quality instruction is located at the identical IMTA frame structure adjustment period and treats dispatching downlink subframe and be scheduled.The present invention also provides a kind of interference control method, user equipment and base stations.The available more accurate interference information of the present invention.
Description
Technical field
The present invention relates to mobile communication system more particularly to third generation partner program (3rdGeneration
Partnership Project, 3GPP) in time division duplex (Time Division Duplexing, TDD) system, IMTA
One of (Interference Management Traffic Adaptation, interference management service adaptation) scene is dry
Measurement method and terminal are disturbed, and, a kind of interference dispatching method and base station.
Background technique
3GPP R11 introduces CoMP (Coordinated Multi-Point, cooperative multi-point) technology, i.e., multiple cells are
Same UE (User Equipment, the user equipment) service.In order to measure and report accurate CSI (Channel State
Information, channel state information), IMR (InterferenceMeasurement Resource, interferometry resource)
It is introduced into RAN1#69 meeting, i.e., exclusively with the CSI-RS of part zero energy (Channel State Information-
Reference Signal, channel state information reference signals) resource auxiliary UE progress interference measurement.Further, RAN1#70
It has been determined that multiple groups IMR can be allocated to a UE (User Equipment, user equipment) by independent in secondary meeting.
Beforehand research discussion [1] is carried out to TDD IMTA technology in 3GPP R11, i.e. the base station TDD adaptively adjusts frame structure
The demand of (ratios of ascending-descending subframes) Lai Shiying uplink and downlink data service.R11 has evaluated three kinds of possible adaptive adjustment weeks
Phase:
Period is 10ms (millisecond)-dynamic adjustment frame structure
Period is the semi-static adjustment frame structure of such as 200ms-
Period is 640ms-SIB (System Information Block, system information block) signal deployment frame structure
In IMTA, a very great challenge is that uplink and downlink how to be overcome to interfere bring system capacity loss.Accurately
Measurement/report of CSI is conducive to frame structure adjustment/UE scheduling of eNB (eNode B, evolution base station), thus can be to a certain degree
Uplink and downlink is overcome to interfere.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of interference detecting method, control method and terminals, and one kind
Dispatching method and base station are interfered, realizes more accurate interference measurement.
To solve the above-mentioned problems, the embodiment of the invention provides a kind of interference detecting methods, comprising:
User equipment obtains channel quality instruction according to interferometry resource；Wherein, the user equipment can only be according to same
Interferometry resource in one observation window obtains the channel quality instruction.
Further, the above method can also have the characteristics that, the method also includes: in the same observation window
The frame structure of each frame is identical.
Further, the above method can also have the characteristics that, the observation window is interference management service adaptation
IMTA frame structure adjusts the period.
Further, the above method can also have the characteristics that, the interferometry resource is located in dynamic subframe, described
Dynamic subframe is that the subframe of sub-frame of uplink or downlink subframe can be dynamically set into according to business demand.
Further, the above method can also have the characteristics that, the user equipment is obtained according to interferometry resource to be believed
Road quality indicates
When the interferometry resource is multiple groups, the user equipment obtains a letter according to every group of interferometry resource
Quality instruction in road obtains multiple channel quality instructions altogether.
Further, the above method can also have the characteristics that, the user equipment is the user under cooperative multi-point scene
Equipment, alternatively, for the user equipment under non-cooperating multiple spot scene.
The embodiment of the present invention also provides a kind of interference dispatching method, comprising:
Base station is the one or more groups of interferometry resources of user device configuration；
The base station receives one or more channel qualities instruction of the user equipment to report, wherein each channel matter
Amount instruction is obtained by the interferometry resource that the user equipment is located in same observation window according to one group；
When the base station is the dispatching user facility downlink subframe, indicated according to the channel quality, and, wait dispatch
Downlink subframe and the interferometry resource that is based on of channel quality instruction of the user equipment to report whether be located at phase
The same IMTA frame structure adjustment period is scheduled to described to dispatching downlink subframe.
Further, the above method can also have the characteristics that, the base station is indicated according to the channel quality, and,
Whether the interferometry resource that the instruction of the channel quality of downlink subframe to be scheduled and the user equipment to report is based on
Include: to described be scheduled to dispatching downlink subframe positioned at the identical IMTA frame structure adjustment period
If the instruction of the channel quality of the downlink subframe to be scheduled and the user equipment to report is based on
Interferometry resource is located at the identical IMTA frame structure adjustment period, then the base station is according to the user equipment to report
It is carried out to described to dispatching downlink subframe with described to the instruction of dispatching downlink subframe corresponding channel quality in channel quality instruction
Scheduling；
If the instruction of the channel quality of the downlink subframe to be scheduled and the user equipment to report is based on
Interferometry resource is located at different IMTA frame structures and adjusts the period, then the base station is according to the user equipment to report
The smallest channel quality instruction is scheduled to described to descending scheduling subframe in channel quality instruction.
Further, the above method can also have the characteristics that, the interferometry resource of the base station configuration is located at
In dynamic subframe, the dynamic subframe is the son that sub-frame of uplink or downlink subframe can be dynamically set into according to business demand
Frame.
Further, the above method can also have the characteristics that, position candidate of the interferometry resource in subframe
For the position of the channel state information reference signals CSI-RS of zero energy.
The embodiment of the present invention also provides a kind of interference control method, comprising:
Base station is the one or more groups of interferometry resources of user device configuration；Wherein, on the position measuring reference signals SRS
Configure at least one set of interferometry resource.
Further, the above method can also have the characteristics that, position of the interferometry resource where it in subframe
It sets as follows:
The interferometry resource is located at the position of zero power channel status information reference signal CSI-RS, and same group dry
It disturbs measurement resource and is located at the same orthogonal frequency division multiplex OFDM symbol.
Further, the above method can also have the characteristics that, position of the interferometry resource where it in subframe
It sets as follows:
The interferometry resource is located at the position of zero power channel status information reference signal CSI-RS, and the SRS
Same group of interferometry resource on position is located in the same orthogonal frequency division multiplex OFDM symbol, and, with the position SRS
Interferometry resource in adjacent OFDM symbol is same group of interferometry resource.
Further, the above method can also have the characteristics that, position of the interferometry resource where it in subframe
It sets as follows:
The interferometry resource is located at the position of zero power channel status information reference signal CSI-RS, and the position SRS
The 3rd resource unit and the 9th resource unit i.e. in the last one OFDM symbol are one group of interferometry resource, second from the bottom
The 3rd resource unit and the 9th resource unit non-interfering measuring resource of a OFDM symbol.
The embodiment of the present invention also provides a kind of interference control method, which is characterized in that the user of base station notice interfered cell
Equipment sends uplink interference signal in specified interferometry resource position, and the specified interferometry resource position is target
The interferometry resource position of cell user equipment.
Further, the above method can also have the characteristics that, the base station notifies the interference small in the following way
The user equipment in area:
High-rise or physical layer signaling, alternatively, it is predefined, alternatively, hidden show notice.
The embodiment of the present invention also provides a kind of interference control method, comprising:
The user equipment acquisition base station notice of interfered cell sends uplink interference in specified interferometry resource position
After the information of signal, if the user equipment is not configured on the specified interferometry resource position while sending number
According to then the user equipment sends the uplink interference signal, the specified interference in specified interferometry resource position
Measure the interferometry resource position that resource location is Target cell user equipment.
Further, the above method can also have the characteristics that, the method also includes if the user equipment is matched
It sets on the specified interferometry resource position while sending data and send the uplink interference signal, then the user
Equipment abandons the uplink interference signal.
Present invention implementation also provides a kind of user equipment, comprising:
Configuration information obtains module, for obtaining the interferometry resource of base station configuration；
Measurement module, for obtaining channel quality instruction according to interferometry resource；It wherein, can only be according to same observation window
Interferometry resource in mouthful obtains the channel quality instruction.
Further, above-mentioned user equipment can also have the characteristics that, the frame knot of each frame in the same observation window
Structure is identical.
Further, above-mentioned user equipment can also have the characteristics that, the observation window is that interference management business is adaptive
IMTA frame structure is answered to adjust the period.
Further, above-mentioned user equipment can also have the characteristics that, the interferometry resource is in dynamic subframe
Interferometry resource, the dynamic subframe are that sub-frame of uplink or downlink subframe can be dynamically set into according to business demand
Subframe.
Further, above-mentioned user equipment can also have the characteristics that, the measurement module is obtained according to interferometry resource
Take channel quality instruction include:
When the interferometry resource is multiple groups, a channel quality instruction is obtained according to every group of interferometry resource,
Multiple channel quality instructions are obtained altogether.
Further, above-mentioned user equipment can also have the characteristics that, the user equipment is under cooperative multi-point scene
User equipment, alternatively, for the user equipment under non-cooperating multiple spot scene.
The embodiment of the present invention also provides a kind of base station, comprising:
Configuration module, for being the one or more groups of interferometry resources of user device configuration；
Receiving module, one or more channel qualities for receiving the user equipment to report indicate, wherein Mei Gexin
Quality instruction in road is obtained by the interferometry resource that the user equipment is located in same observation window according to one group；
Scheduler module, when for being the dispatching user facility downlink subframe, according to channel quality instruction, and,
Whether the interferometry resource that the instruction of the channel quality of downlink subframe to be scheduled and the user equipment to report is based on
It is scheduled to described to dispatching downlink subframe positioned at the identical IMTA frame structure adjustment period.
Further, above-mentioned base station can also have the characteristics that, the scheduler module is to be used for:
If the instruction of the channel quality of the downlink subframe to be scheduled and the user equipment to report is based on
Interferometry resource is located at the identical IMTA frame structure adjustment period, then according to the channel quality of the user equipment to report
It is scheduled to described to dispatching downlink subframe with described to the corresponding channel quality instruction of dispatching downlink subframe in instruction；
If the instruction of the channel quality of the downlink subframe to be scheduled and the user equipment to report is based on
Interferometry resource is located at different IMTA frame structures and adjusts the period, then according to the channel quality of the user equipment to report
The smallest channel quality instruction is scheduled to described to descending scheduling subframe in instruction.
Further, above-mentioned base station can also have the characteristics that, the interferometry resource of the configuration module configuration
In dynamic subframe, the dynamic subframe is that can be dynamically set into sub-frame of uplink or downlink subframe according to business demand
Subframe.
Further, above-mentioned base station can also have the characteristics that, the interferometry resource of the configuration module configuration
Position candidate in subframe is the position of the channel state information reference signals CSI-RS of zero energy.
The embodiment of the present invention also provides a kind of base station, comprising:
Configuration module, for being the one or more groups of interferometry resources of user device configuration；Wherein, in measuring reference signals
At least one set of interferometry resource is configured on the position SRS.
Further, above-mentioned base station can also have the characteristics that, the interferometry resource of the configuration module configuration
Position where it in subframe is as follows:
The interferometry resource is located at the position of zero power channel status information reference signal CSI-RS, and same group dry
It disturbs measurement resource and is located at the same orthogonal frequency division multiplex OFDM symbol.
Further, above-mentioned base station can also have the characteristics that, the interferometry resource of the configuration module configuration
Position where it in subframe is as follows:
The interferometry resource is located at the position of zero power channel status information reference signal CSI-RS, and the SRS
Same group of interferometry resource on position is located in the same orthogonal frequency division multiplex OFDM symbol, and, with the position SRS
Interferometry resource in adjacent OFDM symbol is same group of interferometry resource.
Further, above-mentioned base station can also have the characteristics that, the interferometry resource of the configuration module configuration
Position where it in subframe is as follows:
The interferometry resource is located at the position of zero power channel status information reference signal CSI-RS, and the position SRS
The 3rd resource unit and the 9th resource unit i.e. in the last one OFDM symbol are one group of interferometry resource, second from the bottom
The 3rd resource unit and the 9th resource unit non-interfering measuring resource of a OFDM symbol.
The embodiment of the present invention also provides a kind of base station, and the base station includes configuration module, for notifying the use of interfered cell
Family equipment sends uplink interference signal in specified interferometry resource position, and the specified interferometry resource position is mesh
Mark the interferometry resource position of cell user equipment.
Further, above-mentioned base station can also have the characteristics that, the configuration module notifies described dry in the following way
Disturb the user equipment of cell:
High-rise or physical layer signaling, alternatively, it is predefined, alternatively, hidden show notice.
The embodiment of the present invention also provides a kind of user equipment, comprising:
Configuration information obtains module, for it is logical to obtain base station when the user equipment is the user equipment of interfered cell
That knows sends the information of uplink interference signal in specified interferometry resource position；
Interference module, for not being configured on the specified interferometry resource position simultaneously when the user equipment
When sending data, the uplink interference signal, the specified interference measurement money are sent in specified interferometry resource position
Source position is the interferometry resource position of Target cell user equipment.
Further, above-mentioned user equipment can also have the characteristics that, the interference module is also used to: if the user
Equipment is configured on the specified interferometry resource position while sending data and sends the uplink interference signal, then
Abandon the uplink interference signal.
The embodiment of the invention provides interference detecting method in a kind of IMTA scene, enables and the accurate measurement of UE and converge
Report interference of the potential upstream data in neighboring community to the downlink transfer of this cell.
Detailed description of the invention
Fig. 1 is IMR sub-frame configuration-hypothesis IMTA frame structure switching cycle 20ms；
Fig. 2 is that IMR is multiplexed 4 port CSI-RS position views；
Fig. 3 (a), Fig. 3 (b), Fig. 3 (c) are improved IMR position views；
Fig. 4 is user equipment block diagram of the embodiment of the present invention；
Fig. 5 is base station of embodiment of the present invention block diagram；
Fig. 6 is another embodiment of the present invention user equipment block diagram.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with attached drawing to the present invention
Embodiment be described in detail.It should be noted that in the absence of conflict, in the embodiment and embodiment in the application
Feature can mutual any combination.
In order to keep compatibility to greatest extent, for the UE communicated under IMTA scene, IMTA are carried out using IMR
Interference measurement in scape, the i.e. IMR based on R11 do following Additional definitions:
In IMTA scene, the UE under non-CoMP scene can also configure one or more groups of IMR；CoMP scene described here
Refer to that configuring UE by high-level signaling by system is transmission state 10 (Transmission Mode 10), corresponding UE is referred to as
CoMP UE。
One group of IMR is defined as follows:
Subframe index
IMR location index (position that position candidate is zero energy CSI-RS) in subframe；
Each group of CSI is calculated:
UE, which can only carry out interpolation or smooth-to IMR inside observation window, IMR is used in combination across observation window；
When calculating CQI, the IMR in the same observation window can only be used to be calculated.
Above-mentioned observation window can be the system configuration either predefined IMTA frame structure adjustment period；
Across IMTA frame structure adjustment period means that the uplink/downlink frames structure of neighboring community is likely to occur variation, also just anticipates
Taste the jamming pattern (such as interference source) that is observed on IMR in Target cell dynamic subframe changed.Traditional UE is more
Interpolation or smooth is done in a " IMTA frame structure adjusts the period ", is substantially not have the of different nature of correlation to do to multiple groups
It is smooth to disturb work, not can correctly reflect the interference level in actual physical significance.In the application, by limiting in same observation window
In mouthful, since the interference in same observation window is identical, the interference measured is more acurrate.
Relevant scheme is realized according to specific UE, observation window can be less than IMTA frame structure and adjust the period, but not
It can exceed that an IMTA frame structure adjustment period, unless Target cell confirms neighboring community more by collaboration or other methods
It is remained unchanged in a IMTA frame structure adjustment period, i.e. the actual frame structure adjustment period is that multiple IMTA frame structures adjust the period.
IMR can reside in all downlink subframes, also can be only present in dynamic subframe, and the dynamic subframe is root
The subframe of sub-frame of uplink or downlink subframe can be dynamically set into according to business demand.
Assuming that the frame structure adjustment period of IMTA is 20ms, Fig. 1 illustrates IMR sub-frame configuration scheme, it is assumed that each frame (son
Frame number 0~9) subframe 3/4/8/9 be dynamic subframe, the subframe for carrying IMR is only limitted to dynamic subframe.Further, IMR
The observation window of frame is that frame structure adjusts period 20ms, and otherwise the uplink-downlink configuration of interfered cell may change.One in Fig. 1
Kind filling pattern indicates one group of IMR subframe.
Inside each subframe, the position of IMR can reuse the definition of R11, i.e. the position candidate of IMR is zero energy
The position of CSI-RS, as shown in Figure 2.
The embodiment of the present invention provides a kind of interference detecting method, comprising:
User equipment obtains channel quality instruction according to interferometry resource；Wherein, the user equipment can only be according to same
Interferometry resource in one observation window obtains the channel quality instruction.Specifically, being obtained according to interferometry resource dry
Power is disturbed, obtains channel quality instruction further according to the jamming power.
Wherein, the frame structure of each frame in same observation window is identical.A kind of preferred embodiment is that the observation window is dry
The management business adaptive IMTA frame structure adjustment period is disturbed, it is of course also possible to which being less than IMTA frame structure adjusts the period.
Wherein, the interferometry resource is located in dynamic subframe, and the dynamic subframe is can be by according to business demand
The subframe of sub-frame of uplink or downlink subframe is set dynamically into.
Wherein, the user equipment includes: according to interferometry resource acquisition channel quality instruction
When the interferometry resource is multiple groups, the user equipment obtains a letter according to every group of interferometry resource
Quality instruction in road obtains multiple channel quality instructions altogether.
Wherein, UE is reported according to strategy or the channel quality is not reported to indicate.
Wherein, the user equipment is the user equipment under cooperative multi-point scene, alternatively, under non-cooperating multiple spot scene
User equipment.
The embodiment of the present invention also provides a kind of interference dispatching method, comprising:
Base station is that terminal configures one or more groups of interferometry resources；
Base station receives one or more channel qualities instruction of user equipment to report, wherein the instruction of each channel quality by
The interferometry resource that the user equipment is located in same observation window according to one group obtains；
When the base station is the dispatching user facility downlink subframe, indicated according to the channel quality, and, wait dispatch
Downlink subframe and the interferometry resource that is based on of channel quality instruction of the user equipment to report whether be located at phase
The same IMTA frame structure adjustment period is scheduled to described to dispatching downlink subframe.
Wherein, if the channel quality of the downlink subframe to be scheduled and the user equipment to report indicates institute's base
In interferometry resource be located at identical IMTA frame structure adjustment the period, then the base station is according to the user equipment to report
In channel quality instruction with it is described to the corresponding channel quality instruction of dispatching downlink subframe to described to dispatching downlink subframe
It is scheduled；By taking Fig. 1 as an example, UE generates two CQI (Channel Quality according to the IMR in first radio frames
Indication, channel quality instruction), one is generated according to the IMR for being located at the 5th subframe, and one is that basis is located at the 10th
The IMR of a subframe is generated, if to be scheduled is the 5th subframe in second radio frames, according to UE report according to position
It is scheduled in the CQI that the IMR of the 5th subframe is generated.
If the instruction of the channel quality of the downlink subframe to be scheduled and the user equipment to report is based on
Interferometry resource is located at different IMTA frame structures and adjusts the period, then the base station is according to the user equipment to report
The smallest channel quality instruction is scheduled to described to descending scheduling subframe in channel quality instruction.
Wherein, the interferometry resource of the base station configuration is located in dynamic subframe, according to the dynamic subframe
Business demand can be dynamically set into the subframe of sub-frame of uplink or downlink subframe.
It is described below and is configured based on above-mentioned IMR, a kind of typical UE reports the scheme of CQI and eNB reconstruct CQI, comprising:
Step 1, in IMTA scene, UE1 demodulates all CSI-RS for being configured to downlink subframe, obtains channel response information
H1；
Step 2, according to (one or more groups of) IMR resource of the corresponding CSI-RS resource, UE calculates jamming power I1,
I2..., IK, assume that each dynamic subframe configures one group of IMR resource in the present embodiment, then K is dynamic subframe number in each frame
Amount；
Step 3, UE is according to H1And I1, I2..., IK, in conjunction with RI/PMI (order instruction/pre-coding matrix instruction), calculate sound
The channel quality instruction cqi answered1, cqi2..., cqiKAnd feed back to eNB；
Step 4, if the subframe of eNB actual downstream scheduling UE1 and the configuration subframe of above-mentioned IMR are in identical IMTA frame
The structural adjustment period, then eNB carries out the scheduling of corresponding subframe according to the CQI actually reported, i.e.,If
ENB actual downstream dispatches the subframe of UE1 and the configuration subframe of above-mentioned IMR is in different IMTA frame structures and adjusts period (i.e. UE1
The frame structure of scheduling subframe neighboring community may have occurred and that variation), then eNB is according to the cqi actually reported1, cqi2..., cqiK
In minimum value carry out the scheduling of corresponding subframe, it may be assumed that
The essence of above-mentioned steps 4 is the scheduling of UE to occur in the uncertain subframe of the up-downlink direction of other cells,
The interference that the side eNB assumes that adjacent cell generates this cell is: being produced when adjacent cell transmission direction is respectively uplink and downlink to this cell
Biggish interference in raw interference.
Two, the IMR measurement scheme of UE auxiliary
Above-mentioned IMR scheme makes non-CoMP UE can use IMR to monitor the potential uplink in neighboring community to its downlink
Interference.In order to keep the compatibility standardized with R11, existing IMR resource is fully utilized and carries out.However further contemplate adjacent cell
Uplink has very big difference to the interference of Target cell downlink and traditional inter-cell downlink interference:
Uplink interference is different with the position that adjacent cell is scheduled for UE, very to the interference difference of Target cell UE
Greatly.
Therefore the interference that Target cell UE is monitored on IMR possibly can not correctly reflect its practical scheduled phase completely
Adjacent cell uplink interference, it is biggish to be influenced by neighboring community's scheduling strategy.If such as neighboring community is semi-static complete
Single UE (Ftp transmission), then the reaction interference level that above scheme can be calibrated are dispatched on frequency band；If dynamically adjusted on broadband
Single UE is spent, then IMR monitoring can encounter very big uncertainty.
In order to further increase interference measurement accuracy, the embodiment of the present invention proposes two kinds of candidate schemes:
Scheme one:
System can notify the UE of interfered cell to send uplink interference signal in the specified position IMR, simulate it to adjacent
The interference of cell downlink transmission.The specified position IMR is the position UEIMR of Target cell.Specific advice method can
To be completed by high level/physical layer signaling, can also by it is hidden show/predefined mode completes.The hidden mode shown, which refers to, not to be used
The signal deployment of display, and the position IMR is associated with above some system parameters, such as System Frame Number (System Frame
) or cell id (Cell ID) Number.
If UE is configured on a certain ascending resource block (time-frequency) while sending IMR signal and data, IMR is not sent
(IMR drop)。
Scheme one allows that eNB is interfered to dispatch the UE for determining to send IMR signal according to it, relatively more accurate, in addition, one weight of scheme
With the IMR group position in R11, the forward compatibility of UE downlink monitoring behavior is maintained.
One embodiment of scheme:
In a certain dynamic subframe, Target cell is downlink cell, and interfered cell is (multiple) small comprising uplink cells and downlink
Area.A certain IMR resource group is coordinated in the dynamic subframe out as Target cell by X2 interface in Target cell and interfered cell
UE interference measurement group.Downlink cell in interfered cell sends downlink interference signal in the IMR resource group, in interfered cell
Uplink cells configure its UE and send uplink interference signal in the IMR resource group.
The embodiment of the present invention provides a kind of interference control method, and base station notifies the user equipment of interfered cell to do in specified
It disturbs measurement resource location and sends uplink interference signal, the specified interferometry resource position is Target cell user equipment
Interferometry resource position.
Wherein, the base station notifies the user equipment in the following way:
High-rise or physical layer signaling, alternatively, it is predefined, alternatively, hidden show notice.
The embodiment of the present invention provides a kind of interference control method, comprising:
The user equipment acquisition base station notice of interfered cell sends uplink interference in specified interferometry resource position
After the information of signal, if the user equipment is not configured on the specified interferometry resource position while sending number
According to then the user equipment sends the uplink interference signal, the specified interference in specified interferometry resource position
Measure the interferometry resource position that resource location is Target cell user equipment.
Wherein, the method also includes if the user equipment is configured in the specified interferometry resource position
It sets while sending data and send the uplink interference signal, then the user equipment abandons the uplink interference signal.
Scheme two:
The interference-of the Target cell UE monitoring position adjacent cell SRS (avoiding Target cell DMRS) is that Target cell UE exists
The position SRS (avoiding Target cell DMRS) configures IMR resource.Compared to PUSCH, what SRS can be relatively uniform embodies one
The interference that the whole uplink of cell generates.Therefore, the available more accurate interference information of interference of the position SRS is monitored.
Furthermore it can according to need distribution dedicated for the SRS resource of auxiliary adjacent cell downlink IMR measurement, need to illustrate
It is that the program will not consume excessive SRS resource, can be reused between multiple UE because being used for the SRS resource of IMR, such as: only
Distribute the transmission that a SRS code channel is used for IMR signal to multiple UE.
The embodiment of the present invention also provides a kind of interference control method, comprising:
Base station is the one or more groups of interferometry resources of user device configuration；Wherein, on the position measuring reference signals SRS
Configure at least one set of interferometry resource.
Distinguish one of following in position of the interferometry resource where it in subframe:
The interferometry resource is located at the position of zero power channel status information reference signal CSI-RS, and same group dry
It disturbs measurement resource and is located at the same orthogonal frequency division multiplex OFDM symbol；
The interferometry resource is located at the position of zero power channel status information reference signal CSI-RS, and the SRS
Same group of interferometry resource on position is located in the same orthogonal frequency division multiplex OFDM symbol, and, with the position SRS
Interferometry resource in adjacent OFDM symbol is same group of interferometry resource；
Alternatively, the interferometry resource is located at the position of zero power channel status information reference signal CSI-RS, and SRS
The 3rd resource unit and the 9th resource unit in position i.e. the last one OFDM symbol are one group of interferometry resource, reciprocal
The 3rd resource unit and the 9th resource unit non-interfering measuring resource of second OFDM symbol.
It is compared with scheme one, scheme two is smaller to UE change, however needs to define position in new IMR subframe.Although mesh
Preceding R11 finally defines the position of IMR not yet, but an intuitive way of comparison is to reuse the CSI-RS of 4 ports as IMR
Position, as shown in Fig. 2.In Fig. 2, identical padding scheme indicates same group of IMR resource.
In order to support the monitoring to adjacent cell uplink interference, it may be considered that define one group of IMR and be located at the same OFDM symbol
Inside, as shown in Fig. 3 (a).Wherein, a kind of filling pattern (digital representation CSI-RS port index) indicates one group of IMR resource.
Fig. 3 (b) and Fig. 3 (c) gives other two schemes, i.e., only changes and the IMR of the position of SRS coincidence is combined, Fig. 3
(b) in, only same group of IMR in last column (i.e. the position SRS) and column second from the bottom is located inside the same OFDM symbol,
It is remaining consistent with Fig. 2；Fig. 3 (c) only influences one group of 4 port CSI- using the IMR- of 2 resource unit/Physical Resource Block (RE/PRB)
The use of RS.The 3rd RE/PRB and the 9th in Fig. 3 (c) and the position SRS i.e. the last one OFDM symbol (last column)
RE/PRB is one group of interferometry resource, and the 3rd RE/PRB and the 9th RE/PRB non-interference of penultimate OFDM symbol is surveyed
Resource is measured, remaining is consistent with Fig. 2.
Above scheme one and scheme two can also be combined with the interference detecting method and interference dispatching method of front, i.e.,
The terminal of application scheme one and scheme two also can be used aforementioned interference detecting method and carry out interference measurement, and base station also can be used
Aforementioned interference dispatching method carries out the scheduling of downlink subframe.
The embodiment of the present invention also provides a kind of user equipment, as shown in Figure 4, comprising:
Configuration information obtains module, for obtaining the interferometry resource of base station configuration；
Measurement module, for obtaining channel quality instruction according to interferometry resource；It wherein, can only be according to same observation window
Interferometry resource in mouthful obtains the channel quality instruction.
Wherein, the frame structure of each frame in the same observation window is identical.
Wherein, the observation window is that interference management service adaptation IMTA frame structure adjusts the period.
Wherein, the interferometry resource is the interferometry resource in dynamic subframe, and the dynamic subframe is according to industry
Business demand can be dynamically set into the subframe of sub-frame of uplink or downlink subframe.
Wherein, the measurement module includes: according to interferometry resource acquisition channel quality instruction
When the interferometry resource is multiple groups, a channel quality instruction is obtained according to every group of interferometry resource,
Multiple channel quality instructions are obtained altogether.
Wherein, the user equipment is the user equipment under cooperative multi-point scene, alternatively, under non-cooperating multiple spot scene
User equipment.
The embodiment of the present invention also provides a kind of base station, as shown in Figure 5, comprising:
Configuration module, for being the one or more groups of interferometry resources of user device configuration；
Receiving module, one or more channel qualities for receiving the user equipment to report indicate, wherein Mei Gexin
Quality instruction in road is obtained by the interferometry resource that the user equipment is located in same observation window according to one group；
Scheduler module, when for being the dispatching user facility downlink subframe, according to channel quality instruction, and,
Whether the interferometry resource that the instruction of the channel quality of downlink subframe to be scheduled and the user equipment to report is based on
It is scheduled to described to dispatching downlink subframe positioned at the identical IMTA frame structure adjustment period.
Wherein, the scheduler module is to be used for:
If the instruction of the channel quality of the downlink subframe to be scheduled and the user equipment to report is based on
Interferometry resource is located at the identical IMTA frame structure adjustment period, then according to the channel quality of the user equipment to report
It is scheduled to described to dispatching downlink subframe with described to the corresponding channel quality instruction of dispatching downlink subframe in instruction；
If the instruction of the channel quality of the downlink subframe to be scheduled and the user equipment to report is based on
Interferometry resource is located at different IMTA frame structures and adjusts the period, then according to the channel quality of the user equipment to report
The smallest channel quality instruction is scheduled to described to descending scheduling subframe in instruction.
Wherein, the interferometry resource of the configuration module configuration is located in dynamic subframe, and the dynamic subframe is
The subframe of sub-frame of uplink or downlink subframe can be dynamically set into according to business demand.
Wherein, position candidate of the interferometry resource of the configuration module configuration in subframe is the letter of zero energy
The position of channel state information reference signal CSI-RS.
The embodiment of the present invention also provides a kind of base station, comprising:
Configuration module, for being the one or more groups of interferometry resources of user device configuration；Wherein, in measuring reference signals
At least one set of interferometry resource is configured on the position SRS.
Wherein, position of the interferometry resource of the configuration module configuration where it in subframe is as follows:
The interferometry resource is located at the position of zero power channel status information reference signal CSI-RS, and same group dry
It disturbs measurement resource and is located at the same orthogonal frequency division multiplex OFDM symbol.
Wherein, position of the interferometry resource of the configuration module configuration where it in subframe is as follows:
The interferometry resource is located at the position of zero power channel status information reference signal CSI-RS, and the SRS
Same group of interferometry resource on position is located in the same orthogonal frequency division multiplex OFDM symbol, and, with the position SRS
Interferometry resource in adjacent OFDM symbol is same group of interferometry resource.
Wherein, position of the interferometry resource of the configuration module configuration where it in subframe is as follows:
The interferometry resource is located at the position of zero power channel status information reference signal CSI-RS, and the position SRS
The 3rd resource unit and the 9th resource unit i.e. in the last one OFDM symbol are one group of interferometry resource, second from the bottom
The 3rd resource unit and the 9th resource unit non-interfering measuring resource of a OFDM symbol.
The embodiment of the present invention also provides a kind of base station, and the base station includes configuration module, for notifying the use of interfered cell
Family equipment sends uplink interference signal in specified interferometry resource position, and the specified interferometry resource position is mesh
Mark the interferometry resource position of cell user equipment.
Wherein, the configuration module notifies the user equipment of the interfered cell in the following way:
High-rise or physical layer signaling, alternatively, it is predefined, alternatively, hidden show notice.
The embodiment of the present invention also provides a kind of user equipment, as shown in Figure 6, comprising:
Configuration information obtains module, for it is logical to obtain base station when the user equipment is the user equipment of interfered cell
That knows sends the information of uplink interference signal in specified interferometry resource position；
Interference module, for not being configured on the specified interferometry resource position simultaneously when the user equipment
When sending data, the uplink interference signal, the specified interference measurement money are sent in specified interferometry resource position
Source position is the interferometry resource position of Target cell user equipment.
Wherein, the interference module is also used to: if the user equipment is configured in the specified interference measurement money
Data are sent on source position simultaneously and send the uplink interference signal, then abandon the uplink interference signal.
The present invention also provides the user equipmenies for including module shown in above-mentioned Fig. 4 and Fig. 6.
Those of ordinary skill in the art will appreciate that all or part of the steps in the above method can be instructed by program
Related hardware is completed, and described program can store in computer readable storage medium, such as read-only memory, disk or CD
Deng.Optionally, one or more integrated circuits can be used also to realize in all or part of the steps of above-described embodiment.Accordingly
Ground, each module/unit in above-described embodiment can take the form of hardware realization, can also use the shape of software function module
Formula is realized.The present invention is not limited to the combinations of the hardware and software of any particular form.
Claims (20)
1. a kind of interference detecting method, which is characterized in that be applied to interference management service adaptation IMTA scene, comprising:
User equipment obtains channel quality instruction according to interferometry resource；Wherein, the user equipment can only be according to same sight
The interferometry resource surveyed in window obtains the channel quality instruction.
2. the method as described in claim 1, which is characterized in that the method also includes: it is each in the same observation window
The frame structure of frame is identical.
3. method according to claim 2, which is characterized in that the observation window is interference management service adaptation IMTA frame
The structural adjustment period.
4. the method as described in claim 1, which is characterized in that the interferometry resource is located in dynamic subframe, described dynamic
State subframe is that the subframe of sub-frame of uplink or downlink subframe can be dynamically set into according to business demand.
5. the method as described in claim 1, which is characterized in that the user equipment obtains channel matter according to interferometry resource
Amount indicates
When the interferometry resource is multiple groups, the user equipment obtains a channel matter according to every group of interferometry resource
Amount instruction obtains multiple channel quality instructions altogether.
6. the method as described in claim 1, which is characterized in that the user equipment is that the user under cooperative multi-point scene sets
It is standby, alternatively, for the user equipment under non-cooperating multiple spot scene.
7. a kind of interference dispatching method, which is characterized in that be applied to interference management service adaptation IMTA scene, comprising:
Base station is the one or more groups of interferometry resources of user device configuration；
The base station receives one or more channel qualities instruction of the user equipment to report, wherein each channel quality refers to
Show and is obtained by the interferometry resource that the user equipment is located in same observation window according to one group；
When the base station is the dispatching user facility downlink subframe, indicated according to the channel quality, and, under to be scheduled
It is identical whether the interferometry resource that the channel quality instruction of row subframe and the user equipment to report is based on is located at
The IMTA frame structure adjustment period is scheduled the downlink subframe to be scheduled.
8. the method for claim 7, which is characterized in that the base station indicates according to the channel quality, and, wait adjust
Whether the interferometry resource that the channel quality instruction of the downlink subframe of degree and the user equipment to report is based on is located at
The identical IMTA frame structure adjustment period, which is scheduled the downlink subframe to be scheduled, includes:
If the channel quality of the downlink subframe to be scheduled and the user equipment to report indicates the interference being based on
Measurement resource is located at identical IMTA frame structure and adjusts the period, then the base station is according to the channel of the user equipment to report
Channel quality instruction corresponding with the downlink subframe to be scheduled carries out the downlink subframe to be scheduled in quality instruction
Scheduling；
If the channel quality of the downlink subframe to be scheduled and the user equipment to report indicates the interference being based on
It measures resource and is located at different IMTA frame structure and adjust the period, then the base station is according to the channel of the user equipment to report
The smallest channel quality instruction is scheduled the downlink subframe to be scheduled in quality instruction.
9. the method for claim 7, which is characterized in that the interferometry resource of the base station configuration is located at dynamic
In subframe, the dynamic subframe is that the subframe of sub-frame of uplink or downlink subframe can be dynamically set into according to business demand.
10. the method as described in claim 7,8 or 9, which is characterized in that candidate bit of the interferometry resource in subframe
It is set to the position of the channel state information reference signals CSI-RS of zero energy.
11. a kind of user equipment, which is characterized in that be applied to interference management service adaptation IMTA scene, comprising:
Configuration information obtains module, for obtaining the interferometry resource of base station configuration；
Measurement module, for obtaining channel quality instruction according to interferometry resource；It wherein, can only be according in same observation window
Interferometry resource obtain channel quality instruction.
12. user equipment as claimed in claim 11, which is characterized in that the frame structure of each frame in the same observation window
It is identical.
13. user equipment as claimed in claim 12, which is characterized in that the observation window is interference management service adaptation
IMTA frame structure adjusts the period.
14. user equipment as claimed in claim 11, which is characterized in that the interferometry resource is dry in dynamic subframe
Measurement resource is disturbed, the dynamic subframe is the son that sub-frame of uplink or downlink subframe can be dynamically set into according to business demand
Frame.
15. the user equipment as described in claim 11 to 14 is any, which is characterized in that the measurement module is according to interference measurement
Resource acquisition channel quality indicates
When the interferometry resource is multiple groups, a channel quality instruction is obtained according to every group of interferometry resource, is obtained altogether
Multiple channel qualities are taken to indicate.
16. the user equipment as described in claim 11 to 14 is any, which is characterized in that the user equipment is cooperative multi-point field
User equipment under scape, alternatively, for the user equipment under non-cooperating multiple spot scene.
17. a kind of base station, which is characterized in that be applied to interference management service adaptation IMTA scene, comprising:
Configuration module, for being the one or more groups of interferometry resources of user device configuration；
Receiving module, one or more channel qualities for receiving the user equipment to report indicate, wherein each channel matter
Amount instruction is obtained by the interferometry resource that the user equipment is located in same observation window according to one group；
Scheduler module, when for being the dispatching user facility downlink subframe, according to channel quality instruction, and, wait adjust
Whether the interferometry resource that the channel quality instruction of the downlink subframe of degree and the user equipment to report is based on is located at
The identical IMTA frame structure adjustment period is scheduled the downlink subframe to be scheduled.
18. base station as claimed in claim 17, which is characterized in that the scheduler module is to be used for:
If the channel quality of the downlink subframe to be scheduled and the user equipment to report indicates the interference being based on
Measurement resource is located at the identical IMTA frame structure adjustment period, then is indicated according to the channel quality of the user equipment to report
In channel quality instruction corresponding with the downlink subframe to be scheduled the downlink subframe to be scheduled is scheduled；
If the channel quality of the downlink subframe to be scheduled and the user equipment to report indicates the interference being based on
It measures resource and is located at the different IMTA frame structure adjustment periods, then indicated according to the channel quality of the user equipment to report
In the instruction of the smallest channel quality the downlink subframe to be scheduled is scheduled.
19. base station as claimed in claim 17, which is characterized in that the interferometry resource position of the configuration module configuration
In in dynamic subframe, the dynamic subframe is that sub-frame of uplink or downlink subframe can be dynamically set into according to business demand
Subframe.
20. the base station as described in claim 17 to 19 is any, which is characterized in that the interference of the configuration module configuration is surveyed
Measure the position for the channel state information reference signals CSI-RS that position candidate of the resource in subframe is zero energy.
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| CN110830132B (en) * | 2014-11-06 | 2020-12-08 | 华为技术有限公司 | Processing method, device and storage medium for uplink transmission timing |
| CN108347286B (en) * | 2017-01-24 | 2021-06-15 | 中国移动通信有限公司研究院 | Interference identification method, user equipment, base station and system |
| CN109150450B (en) | 2017-06-16 | 2021-04-20 | 华为技术有限公司 | Signal transmission method, equipment and system |
| CN109391994B (en) * | 2017-08-11 | 2021-08-13 | 华为技术有限公司 | Communication method and communication device |
| EP3678400B1 (en) * | 2017-09-01 | 2022-11-02 | Beijing Xiaomi Mobile Software Co., Ltd. | Method for determining cqi information, base station, and user equipment |
| CN109661850A (en) * | 2017-09-08 | 2019-04-19 | Oppo广东移动通信有限公司 | Method, terminal device and the network equipment of interference measurement |
| US20190159215A1 (en) * | 2017-11-17 | 2019-05-23 | Mediatek Inc. | Multi-TRP Interference Control in Wireless Communications |
| CN110636632B (en) * | 2019-09-29 | 2022-12-30 | 京信网络系统股份有限公司 | User scheduling method, device, base station and storage medium |
| CN111246591B (en) * | 2020-01-20 | 2022-09-13 | 展讯通信（上海）有限公司 | Information transmission method, device and related equipment |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101848485A (en) * | 2009-03-24 | 2010-09-29 | 大唐移动通信设备有限公司 | Method and device for indicating terminal to report measurement information |
| CN102149124A (en) * | 2011-04-22 | 2011-08-10 | 电信科学技术研究院 | Method and equipment for measuring interference under cooperated multi-point transmission |
-
2012
- 2012-09-28 CN CN201210370612.0A patent/CN103716828B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101848485A (en) * | 2009-03-24 | 2010-09-29 | 大唐移动通信设备有限公司 | Method and device for indicating terminal to report measurement information |
| CN102149124A (en) * | 2011-04-22 | 2011-08-10 | 电信科学技术研究院 | Method and equipment for measuring interference under cooperated multi-point transmission |
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