CN103959846A - Interference measurement method and device - Google Patents
Interference measurement method and device Download PDFInfo
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Abstract
Embodiments of the present invention provide an interference measurement method and device. The method comprises: a transmission point sending resource position signaling to all user equipments covered by the transmission point, the resource position signaling being used for indicating the positions of measurement resources; the transmission point sending measurement type signaling for each user equipment covered by the transmission point, the measurement type signaling being used for indicating the measurement type of the measurement resource corresponding to each user equipment; and when the measurement type is interference measurement, the transmission point sending interference type signaling for each user equipment covered by the transmission point, the interference type signaling being used for indicating the interference type of the interference measurement corresponding to each user equipment. Through the method and the device of the embodiments of the present invention, a zero-power CSI-RS based enhanced interference measurement scheme is supported, correct interference measurement can be provided for a receiving end based on single-cell transmission or CoMP transmission, and a better compromise can be made between the signaling overhead and the interference measurement performance.
Description
A kind of interference detecting method and engineering device technique field
The present invention relates to the transmission technology in communication system, more specifically to LTE-A (LTE- Advanced, enhanced Long Term Evolution）Interference detecting method and device in system.Background technology
LTE (Long Term Evolution, Long Term Evolution）In system, interferometry is one of critical function of receiver.The accuracy of interferometry directly affects estimation and decoding performance of the receiving terminal to channel quality.If bigger than normal, estimated bias of the receiving terminal to actual transmissions condition is disturbed in measurement.If this measurement result indicates that (CQI, Channel Quality Indicator) feeds back to base station by channel quality, base station will transmit less information according to this transmittability, and this can influence the actual transmissions ability of system.On the contrary, if measurement interference is relatively low, receiving terminal will feed back higher channel quality and indicate.If base station is according to this instruction transmission compared with multi information, it causes beyond the actual transmittability of system the erroneous judgement of receiving terminal, causes failed transmission.On the other hand, some MIMO (Multiple-Input Multiple- Output, multiple-input and multiple-output of receiver）Decoding algorithm, such as MMSE (Minimum Mean Squared Error, least mean-square error）Decoding algorithm, related to the Signal to Interference plus Noise Ratio of receiving terminal, inaccurate interferometry can influence the decoding performance of receiving terminal.
In LTE Rel.8 systems, interferometry passes through CRS (Common Reference Signal, public reference signal）To realize.Simply see, interfering energy can subtract the energy for the reference signal that receiving terminal is received by receiving the energy of signal and obtain.In fact, accurate interference is not easy to obtain, the interfering energy in statistical significance can be obtained by interference detecting method.It needs time, a large amount of accumulations in frequency to obtain.In LTE Rel.10 systems, channel quality indicates to obtain by measuring transmission gain and interfering energy.Wherein, by surveying fi CSI-RS, (Channel State Indication- Reference Signal, channel status indicates reference signal for transmission gain）To obtain, interferometry continues to use Rel.8 interference method, that is, is obtained by CRS.In LTE Rel.ll systems, CRS function is weakened, such as MBSFN (Multicast Broadcast Single Frequency Network, multicast single frequency network）Middle CRS only exists in previous or two symbols, does not have CRS in additional subcarriers.Moreover, CRS can not work well under some scenes, such as CoMP (Coordinated Multiple Points, coordinate multipoint）Under scene 4, the CRS positions of all transmission points are identical, will be completely incorrect by the CRS interference measured.Accordingly, it would be desirable to which a kind of new interferometry scheme realizes interferometry function.
Inventor has found during the present invention is realized, realize that interferometry comes into question in Rel.10 using CSI-RS, but, in order to reduce the load of reference signal, CSI-RS has less density, specially lport/RE, and it is 5ms that transmission cycle is most short, use it for interferometry, it is impossible to obtain sufficient temporal frequency accumulation and preferable measurement result.In addition, new reference signal is also introduced into improve the performance of interferometry, such as ZP-CSI-RS (Zero Power CSI-RS, zero energy CSI-RS) or NZP-CSI-RS (Non zero power CSI-RS, non-zero power CSI-RS).How interferometry is carried out using these new reference signals, preferably compromised to provide accurate interferometry based on single cell transmission and based on CoMP transmission, and being obtained between signaling consumption and interferometry, the research direction as industry.
It should be noted that the introduction to technical background is intended merely to the convenient explanation clear, complete to technical scheme progress above, and facilitates the understanding of those skilled in the art and illustrate.Can not be merely because these schemes be set forth in the background section of the present invention and think that above-mentioned technical proposal is known to those skilled in the art.The content of the invention
The purpose of the embodiment of the present invention is to provide a kind of interference detecting method and device, preferably compromised to provide accurate interferometry for the receiving terminal based on single cell transmission and based on CoMP transmission, and to be obtained between signaling consumption and interferometry performance.
First aspect according to embodiments of the present invention there is provided a kind of interference detecting method, wherein, methods described includes:All user equipmenies of the transmission point into its coverage send resource location signaling, and the resource location signaling is used for the position for indicating measurement resource；
Transmission point sends measurement type signaling for each user equipment in its coverage, and the measurement type signaling is used for the measurement type for indicating the corresponding measurement resource of each user equipment；
When the measurement type is interferometry, transmission point sends interference type signaling for each user equipment in its coverage, and the interference type signaling is used for the interference type for indicating the corresponding interferometry of each user equipment.
Second aspect according to embodiments of the present invention there is provided a kind of interference detecting method, wherein, methods described includes:User equipment receives the measurement resource signaling that transmission point is sent, and the measurement resource signaling includes resource location signaling, measurement type signaling and interference type signaling；
User equipment determines effective measurement resource according to the resource location signaling；
User equipment is according to effective the measurement resource and the measurement type signaling and the interference type signaling
Carry out interferometry.
The third aspect according to embodiments of the present invention transmits point device there is provided one kind, wherein, the transmission point device includes：
First transmitting element, its all user equipment into its coverage sends resource location signaling, measurement type signaling is sent for each user equipment in its coverage, when measurement type is interferometry, interference type signaling is sent for each user equipment in its coverage, wherein
The resource location signaling is used for the position for indicating measurement resource；
The measurement type signaling is used for the measurement type for indicating the corresponding measurement resource of each user equipment；The interference type signaling is used for the interference type for indicating the corresponding interferometry of each user equipment.Fourth aspect according to embodiments of the present invention there is provided a kind of user equipment, wherein, the user equipment includes:Receiving unit, it receives the measurement resource signaling that transmission point is sent, and the measurement resource signaling includes resource location signaling, measurement type signaling and interference type signaling；
Determining unit, it determines effective measurement resource according to the resource location signaling；
Measuring unit, it carries out interferometry according to the effective measurement resource and the measurement type signaling and the interference type signaling.
There is provided a kind of computer-readable program in terms of according to embodiments of the present invention the 5th, wherein, when performing the program in a base station, the program causes computer to perform the interference detecting method described in first aspect in the base station.
6th aspect according to embodiments of the present invention is there is provided a kind of storage medium for the computer-readable program that is stored with, and the wherein computer-readable program causes computer to perform the interference detecting method described in first aspect in a base station.
There is provided a kind of computer-readable program in terms of according to embodiments of the present invention the 7th, wherein, when performing the program in a user device, the program causes computer to perform the interference detecting method described in second aspect in the user equipment.
Eighth aspect according to embodiments of the present invention causes computer to perform the interference detecting method described in second aspect in terminal device there is provided a kind of storage medium for the computer-readable program that is stored with, the wherein computer-readable program.
The beneficial effect of the embodiment of the present invention is：The enhancing interferometry scheme based on zero energy CSI-RS of support, can provide accurate interferometry, and the acquisition preferably compromise between signaling consumption and interferometry performance for the receiving terminal based on single cell transmission and based on CoMP transmission.
With reference to explanation hereinafter and accompanying drawing, only certain exemplary embodiments of this invention is disclose in detail, the principle for specifying the present invention can be in adopted mode.It should be understood that embodiments of the present invention are not so limited in scope.
In the range of the spirit and terms of appended claims, embodiments of the present invention include many changes, modifications and equivalent.Described for a kind of embodiment and/or the feature that shows can be used in same or similar mode in one or more other embodiments, it is combined with feature in other embodiment, or substitute the feature in other embodiment.
It should be emphasized that term " include/include " refers to the presence of feature, one integral piece, step or component when being used herein, but it is not precluded from the presence or additional of one or more further features, one integral piece, step or component.Brief description of the drawings
Many aspects of the present invention may be better understood with reference to following accompanying drawing.Part in accompanying drawing is not proportional drafting, and is intended merely to show the principle of the present invention.For the ease of showing and describing some parts of the present invention, may to be exaggerated Huo Shrink small for corresponding part in accompanying drawing.The element and feature that element and feature described in a kind of accompanying drawing or embodiment of the present invention can be shown in one or more other accompanying drawings or embodiment are combined.In addition, in the accompanying drawings, similar label represents corresponding part in several accompanying drawings, and may be used to indicate the corresponding component used in more than one embodiment.In the accompanying drawings：
Fig. 1 (a) is the position view for the ZP-CSI-RS possible configurations that 10 kinds of FDD and TDD system are supported；Fig. 1 (b) be 6 kinds only TDD system support ZP-CSI-RS possible configurations position view；When Fig. 2 is 3 transmission point joint transmissions, the schematic diagram of interference is measured using ZP-CSI-RS；
Fig. 3 is the flow chart of the interference detecting method of the embodiment of the present invention；
Fig. 4 is the Signalling Designing schematic diagram of method according to embodiments of the present invention；
Fig. 5 is the flow chart of the interference detecting method of another embodiment of the present invention；
Fig. 6 is the composition schematic diagram of the transmission point device of the embodiment of the present invention；
Fig. 7 is the composition schematic diagram of the user equipment of the embodiment of the present invention.Embodiment
Referring to the drawings, by following specification, the foregoing and further feature of the embodiment of the present invention will be apparent.These embodiments are exemplary, are not limitations of the present invention.In order that those skilled in the art can easily understand that the principle and embodiment of the present invention, embodiments of the present invention are illustrated by taking the enhancing interferometry scheme based on zero energy CSI-RS as an example, it is to be understood that, the embodiment of the present invention is not limited to the above-mentioned enhancing interferometry scheme based on zero energy CSI-RS, it is applicable for being related to interferometry other schemes, such as based on non-zero power
Rate CSI-RS enhancing interferometry scheme etc..
To make the method for the present embodiment more clear understandable, first the metering system that interferometry is carried out currently with zero energy CSI-RS is briefly described below.
Zero energy CSI-RS is also known as ZP-CSI-RS, at present, cycle and sub-frame offset that its subframe position in the time domain is configured by high-level signaling（With respect to the position in frame）To indicate；The RB of whole bandwidth is taken in frequency;The bit maps of 16 bits that position in RB is configured by high-level signaling is indicated, wherein each bit represents a kind of 4 port CSI-RS configuration.Fig. 1 (a) provides the position for the ZP-CSI-RS possible configurations that 10 kinds of FDD and TDD system are supported, Fig. 1 (b) provides the position of 6 kinds of only ZP-CSI-RS possible configurations that TDD system is supported.The position of this 16 kinds of possible configurations and the bit map of 16 bits are corresponded.
LTE-A Rel.ll improve cell-edge performance by introducing CoMP technologies.Relatively single cell transmission, the multiple cells of CoMP transmission joints are transmitted to edge customer, reduce the interference of minizone.For different CoMP transmission plans, such as JT (Joint Transmission, joint transmission）/ CB (Coordination Beamforming, cooperation wave beam forming）/ DPS (Dynamic Point Selection, dynamic transmission point selection）, the interference that user is subject to also differs.User can obtain the intensity of interference by the method or combined measurement of complete measument and the method for calculating.Fig. 2 gives 3 transmission points（TP, Transmission Point) joint transmission when, utilize ZP-CSI-RS measurement interference schematic diagram.Wherein 10,12,13,123 represent the interference beyond the interference beyond the interference outside the transmission point 1,2,3 measured using corresponding ZP-CSI-RS, transmission point 2, transmission point 3, interference when single subdistrict is transmitted respectively.The scene of point cooperation is transmitted for N=3, possible interference type has 2 altogetherΛ=4 kind (N-1).For different transmission plans, it can be obtained in the method for Selection utilization ZP-CSI-RS measurements, combined measurement can also be selected with the method calculated to obtain, for example, the interference of single cell can be obtained by the disturbed one 23 of measurement, the interference of different CoMP transmission schemes can be obtained by the channel of 10 and adjacent cell.
The embodiment of the present invention supports various interferometry schemes by designing high-level signaling, and it can be measured to the interference of single cell and coordinated multipoint transmission.Meanwhile, in order to improve the reliability of interferometry, effective interferometry resource is also noted.It is illustrated below by way of specific embodiment.
Embodiment 1
The embodiments of the invention provide a kind of interference detecting method.Fig. 3 is the flow chart of this method, refer to Fig. 3, this method includes：
Step 301:All user equipmenies of the transmission point into its coverage send resource location signaling, and the resource location signaling is used for the position for indicating measurement resource；
Step 302:Transmission point sends measurement type signaling for each user equipment in its coverage, and the measurement type signaling is used for the measurement type for indicating the corresponding measurement resource of each user equipment；
Step 303:When the measurement type is interferometry, transmission point sends interference type signaling for each user equipment in its coverage, and the interference type signaling is used for the interference type for indicating the corresponding interferometry of each user equipment.
In step 301, measurement resource can be the zero energy CSI-RS newly introduced in lte-a system, can also be the non-zero power CSI-RS newly introduced in lte-a system, or other reference signals introduced with the development of LTE system, the present embodiment is not in this, as limitation.
In step 301, the resource location signaling is all identical for all user equipmenies in the transmission point coverage, the position for indicating the measurement resource.In one embodiment, the resource location signaling includes two parts information, in the present embodiment, referred to as first position information and second place information.Wherein, first position information is used to indicate the position of measurement resource in 1 RB, and it can reuse 16 bit RRC signalings, for example, putting 1 bit, to represent corresponding 4 port measurement resource element silent, can be for measurement interference.Second place information is used to indicate the measurement resource corresponding cycle and subframe position.
In step 302, the measurement type signaling is different for the different user devices in the transmission point coverage, that is to say, that for different user equipmenies, the measurement type signaling is different.In the present embodiment, the measurement type signaling is used for the measurement type for indicating the above-mentioned measurement resource of correspondence.Here measurement type only includes channel measurement and interferometry, therefore only can be carried out distinguishing with 1 bit information.Wherein, the resource for channel measurement is mainly used in measuring the channel quality of neighbor cell, but can also measure the area interference outside CoMP measurement collection simultaneously, and this is to realize technology, depending on the actual algorithm of receiver, be will not be repeated here.
In step 303, the interference type signaling is also different for the different user devices in transmission point, that is to say, that for different user equipmenies, the interference type signaling is different.In the present embodiment, the interference type signaling is used for the interference type for being used to measure interference for indicating the above-mentioned measurement resource of correspondence.In one embodiment, so that CoMP measurements are concentrated with 3 transmission point cooperation transmissions as an example, for the user equipment of the 2nd transmission point service, may at most there are 4 kinds of interference types, they are respectively：Other area interferences beyond 3 cells of 3 transmission point coverings, the interference of other cells in addition to the cell 2 of the 2nd transmission point covering, the interference of other cells in addition to the cell 3 of the 3rd transmission point covering, the interference of all other cell.It is generalized to CoMP measurements and is concentrated with N transmission point progress cooperation transmission, interference type altogether has 2Λ(N-1) plant.Therefore it needs N-1 bits to indicate the interference type measured by corresponding measurement resource.In order to obtain the preferable of interferometry load and interferometry performance
Compromise, in another embodiment, the interference of two classes is preferably measured, and they are single area interference measurement and CoMP interferometries respectively, their corresponding measurement resources measure the interference beyond the interference of other cells in addition to this cell, CoMP measurement collection respectively.The interference size of other possible CoMP transmission schemes can be calculated by the interference measurement results outside adjacent cell channel measurement result and CoMP measurement collection.Now, it is only necessary to which 1 bit information indicates interference type, that is, interferometry outside single area interference measurement or CoMP measurement collection.
Above is illustrated exemplified by carrying out interferometry to CoMP measurement collection, but the embodiment of the present invention is not in this, as limitation.For example, it is also possible to other measurement collection progress interferometries, such as carry out interferometry as a measurement collection to adjacent transmission o'clock, now, N is the number of adjacent transmission point.Here adjacent transmission point can be physically adjacent to each other transmission point or the transmission point of Microcell in macrocell and its coverage etc..
In the present embodiment, it is corresponding with above-mentioned measurement resource that measurement type signaling and interference type, which are instructed, that is, the measurement type signaling and interference type instruction are corresponded with each putting 1 measurement resource, to show to that should measure the measurement type and interference type of resource.In another embodiment, the measurement type signaling and interference type instruction can be shown to that should measure the measurement type and interference type of resource by increasing respectively on head for indicating the information of the measurement resource.For example, indicating that the measurement type signaling and interference type instruct corresponding specific measurement resource by increasing by 4 bit informations.In order to save signaling consumption, the measurement type signaling of the embodiment of the present invention is preferred to use former scheme.
In embodiments of the present invention, some optional signalings can also be increased to aid in interferometry.It is illustrated below by way of citing.
In one embodiment, transmission point can also send interference type expanded signalling for each user equipment in its coverage, the interference type expanded signalling is used to indicate the interference type in the corresponding different subframes of each user equipment, or for indicating the interference type on the corresponding different frequency domains of each user equipment.
Wherein, to measure resource for exemplified by zero energy CSI-RS.In a preferred embodiment of the embodiment of the present invention, the zero energy CSI-RS that resource is 4 ports is measured, however, its density ratio is larger, if less density can obtain preferable interferometry quality, this requires system to support the zero energy CSI-RS positions of 2 ports.But the zero energy CSI-RS indicating means of 4 ports is standardized in LTE-A Rel.10, the zero energy CSI-RS of 2 ports indicates that the work of standard can be increased and causes the influence to Rel.10 user.Another method for reducing measurement resource is silent for support section resource.Its part transmission point to measurement collection when the different silence period of configuration of territory or in the different transmission resource block of frequency domain configuration.For example, two cells carry out cooperation transmission, the zero energy CSI-RS of cell 1 cycle is 5ms, and the zero energy CSI-RS of cell 2 cycle is 10ms.When part silence side
, it is necessary to which more signaling indicates corresponding interference type when case is supported.It is silent for the part resource in time domain, the embodiment of the present invention indicates the interference type in different subframes by interference type expanded signalling, specifically, for cell 1,0th, still interference type signaling can be used to indicate for resource correspondence interferometry type on 10,20ms correspondence CSI-RS positions；Correspondence interferometry type needs to use interference type expanded signalling to indicate on 5,15,25ms correspondence CSI-RS positions.Silent for the part resource on frequency domain, the interference type on correspondence frequency domain on part resource silent resource block can also use similar method to be indicated, for example, the interference type on different frequency domains is indicated by interference type expanded signalling.
In the present embodiment, likewise, these optional signalings also with it is each put 1 measurement resource correspond, or by head increase information come show its with measure resource corresponding relation.
Interferometry when in embodiments of the present invention, in order to support that dynamic cell is selected, the user equipment that transmission point can also be into coverage sends the measurement resource signaling of other transmission points, and the measurement resource signaling of other transmission points includes：Resource location signaling, measurement type signaling and interference type signaling；Or including：Resource location signaling, measurement type signaling, interference type signaling and interference type expanded signalling.It is illustrated below by way of citing.
Still to measure resource for exemplified by zero energy CSI-RS, when dynamic cell selection scheme is supported, user equipment needs to measure the interference being subject to when being transmitted by different transmission points.The set of multiple zero energy CSI-RS configurations is used to configure the resource of interferometry.Above-mentioned signaling of each zero energy CSI-RS signaling for other transmission points is wherein configured, can be resource location signaling, measurement type signaling and interference type signaling；Can also be resource location signaling, measurement type signaling, interference type signaling and interference type expanded signalling.
In the present embodiment, in order to avoid measuring the conflict of resource, for the different measurement Subsets of configuration, namely the measurement resource signaling of each transmission point, different sub-frame offsets or transmission cycle will be used, namely in the second place information of resource location signaling, using different sub-frame offset values and transmission cycle.
In the present embodiment, although above-mentioned zero energy CSI-RS is notified user and carries out corresponding interferometry, it is not precluded from carrying out interferometry using non-zero power CSI-RS.If measurement concentrates other cells to carry out silence in non-zero power CSI-RS correspondence positions, non-zero power CSI-RS can be used to measure the area interference outside CoMP measuring assemblies.
Fig. 4 is the Signalling Designing schematic diagram of an embodiment of the method according to the present embodiment, as shown in figure 4, UE of the transmission point into coverage have sent the measurement resource signaling 40 of the transmission point, the measurement resource signaling 40 includes：Resource location signaling 401, measurement type signaling 402, interference type signaling 403, interference type expanded signalling 404 is (optional）.Wherein, resource location signaling 401 is all identical for all UE in the transmission point coverage
, other signalings 402,403,404 are (optional）It is different for the UE in the transmission point coverage.Also blunt Jie, each UE has identical resource location signaling 401 and other different signalings 402,403,404 are (optional）.
Wherein, the resource location signaling 401 includes cycle and skew configured information 4011 (correspondence second place information）And indicate (the correspondence first position information of 16 bit configured information 4012 of zero energy CSI-RS）.Wherein, the bit set to 0 represents that the position is not measurement resource, and the bit for putting 1 represents that the position is measurement resource.As shown in Fig. 4, in the present embodiment, the measurement resource of three positions is had.
Wherein, the measurement type signaling 402 is corresponded with putting 1 zero energy CSI-RS in resource location signaling 401.In this embodiment, the bit set to 0 represents that the measurement type of the measurement resource is channel measurement, and the bit for putting 1 represents that the measurement type of the measurement resource is interferometry.As shown in figure 4, first measurement resource is to be used to carry out channel measurement, second measurement resource and the 3rd measurement resource are to be used to carry out interferometry.
Wherein, the interference type signaling 403 indicates two kinds of interference types by 1 bit signalling.In this embodiment, the bit set to 0 represents that the interference type of the interferometry is single area interference measurement, and the bit for putting 1 represents that the interference type of the interferometry is CoMP interferometries.As shown in figure 4, first measurement resource is to be used to carry out channel measurement, but it can also measure the area interference outside CoMP measurement collection, therefore, to should the interference type signaling 403 of first measurement resource put 1.As shown in figure 4, second measurement resource of correspondence is to be used to carry out interferometry, because the interference type signaling 403 is set to 0, therefore it is to be used to measure single area interference.As shown in figure 4, the 3rd measurement resource of correspondence is also to be used to carry out interferometry, because the interference type signaling 403 puts 1, therefore it is to be used to measure CoMP interference.
Wherein, interference type expanded signalling 404 is optional, when system support section resource is silent, and the interference type on the interference type or different frequency domains in different subframes is indicated by the interference type expanded signalling 404.As shown in Fig. 4, each measurement resource is corresponded to, the interference type expanded signalling 404 is all set to 0, represent that interference type of these measurement resources in different subframes or different frequency domains is single area interference.
Wherein, when system supports dynamic cell selection, the transmission point will also send the measurement resource signaling 41 of other transmission points in addition to sending the measurement resource signaling 40 of oneself.In the present embodiment, the measurement resource signaling 41 of other transmission points also includes above-mentioned three part or four part signalings, that is, the measurement resource signaling 41 of other transmission points is equally included：Resource location signaling, measurement type signaling and interference type signaling；Or comprising：Resource location signaling, measurement type signaling, interference type signaling and interference type expanded signalling.Unlike, in order to avoid measuring sub-frame offset and the transmission in the resource location signaling in the conflict of resource, the measurement resource signaling 41
Cycle is different from measurement resource signaling 40.
In the embodiment shown in fig. 4, exemplified by being the measurement resource signaling that other transmission point is a little have sent to transmit, but the present embodiment is not in this, as limitation, for example, the transmission point can also send the measurement resource signaling of other multiple transmission points, and the measurement resource signaling of each other transmission point also includes foregoing three part or four part signalings, the difference is that sub-frame offset and transmission cycle.
The interference detecting method of the embodiment of the present invention is by designing the signaling of interferometry, the effective interferometry for supporting single cell and CoMP transmission.This interference detecting method obtains good compromise on signaling consumption and interferometry quality.
Embodiment 2
The embodiment of the present invention additionally provides a kind of interference detecting method.Fig. 5 is the flow chart of this method, and this method is the processing of user equipment side corresponding with the interference detecting method of embodiment 1, and the content and function of the identical signaling being directed to are repeated no more.Fig. 5 is refer to, this method includes：
Step 501:User equipment receives the measurement resource signaling that transmission point is sent, and the measurement resource signaling includes resource location signaling, measurement type signaling and interference type signaling；
Step 502:User equipment determines effective measurement resource according to the resource location signaling；
Step 503:User equipment carries out interferometry according to the effective measurement resource and the measurement type signaling and the interference type signaling.
In step 501, the content and function of resource location signaling, measurement type signaling and interference type signaling are identical with resource location signaling, measurement type signaling and interference type signaling that embodiment 1 is described, will not be repeated here.
In the present embodiment, in order to the interference of accurately measurement minizone, effective interferometry resource needs further to be defined.
On the one hand, when the interferometry resource of this cell is corresponding with the data channel of other interfered cells, interferometry is only more accurately.Therefore, even if corresponding resource is indicated in 16 bit signallings carries out interferometry.If its data channel not with interfered cell is corresponding, it is also not as effective interferometry resource.The corresponding transmission location of common signal of such as interfered cell is not as effective interferometry resource.Here common signal can be PBCH (Physical Broadcast Channel, Physical Broadcast Channel）, PSS (primary synchronization signal, master sync signal), SSS (secondary synchronization signal, auxiliary synchronous signals), (the System Information Block 1 of SIB 1, system information block 1) or PRS (Position Reference Signal, location reference signals）/ Paging (pagings）Deng.In order to support this accurate interferometry, these invalid interferometry moneys
Source needs to be notified user equipment.Further, neighbor cell does not actually transmit CSI-RS in these positions, these positions can not as effective neighbor cell channel measurement resource.Therefore, in an embodiment of step 502, user equipment determines the position of the common signal of neighbor cell first, then regard the measurement resource in the measurement resource indicated by the resource location signaling in addition to the position of the common signal of the neighbor cell as effective measurement resource.Wherein, the neighbor cell includes the adjacent cell of cell and/or position that CoMP measures concentration.
On the other hand, if the common signal of this cell（Such as PBCH/PSS/SSS/SIB1/ PRS/Paging）Mutually conflict with interferometry resource, and common signal（Such as PBCH/PSS/SSS/SIBl/PRS/Paging）With higher transmission priority, then these resources can not be used as effective interferometry resource.Therefore, in another embodiment of step 502, user equipment determines whether the transmission priority of the common signal of this cell is more than predetermined value first, if the transmission priority of the common signal of this cell is more than predetermined value, the user equipment regard the measurement resource in the measurement resource indicated by the resource location signaling in addition to the position of the common signal as effective measurement resource.It is preferred that, common signal has higher priority, if common signal conflicts with interferometry resource, and this part resource is not as effective measurement resource.
In one embodiment, it is corresponding with embodiment 1, the user equipment can also receive the interference type expanded signalling that transmission point is sent, the interference type expanded signalling is used to indicate the interference type in the corresponding different subframes of each user equipment, or for indicating the interference type on the corresponding different frequency domains of each user equipment.Then now, user equipment further carries out interferometry according to the interference type expanded signalling.It will not be repeated here.
In another embodiment, it is corresponding with embodiment 1, the user equipment can also receive the measurement resource signaling for other transmission points that transmission point is sent, the measurement resource signaling of other transmission points also includes resource location signaling, measurement type signaling and interference type signaling, or the measurement resource signaling of other transmission points also includes resource location signaling, measurement type signaling, interference type signaling and interference type expanded signalling.Then now, interferometry is further carried out according to the measurement resource signaling of other transmission points for equipment.
The embodiment of the present invention is by designing the signaling of interferometry, the effective interferometry for supporting single cell and CoMP transmission.This interference detecting method obtains good compromise on signaling consumption and interferometry quality.Meanwhile, in order to improve the accuracy of interferometry, effective interferometry resource is also further defined.
The embodiment of the present invention additionally provides a kind of transmission point device, as described in the following examples 3, because the principle that the transmission point device solves problem is similar with the method for embodiment 1, therefore, and its specific implementation refer to embodiment 1, will not be repeated here.In the examples below, it is to be illustrated by taking " transmission point device " as an example, but the present embodiment is not intended to limit " the transmission point device " representative specific entity, such as it can be eNB or RRH,
As long as it possesses the function of sending high-level signaling, the protection domain of " the transmission point device " of the embodiment of the present invention is all contained in.
Embodiment 3
The embodiment of the present invention additionally provides a kind of transmission point device.Fig. 6 is the composition schematic diagram of the transmission point device, refer to Fig. 6, the transmission point device includes：
First transmitting element 61, its all user equipment into its coverage sends resource location signaling, measurement type signaling is sent for each user equipment in its coverage, if measurement type is interferometry, then it sends interference type signaling for each user equipment in its coverage, wherein
The resource location signaling is used for the position for indicating measurement resource；
The measurement type signaling is used for the measurement type for indicating the corresponding measurement resource of each user equipment；The interference type signaling is used for the interference type for indicating the corresponding interferometry of each user equipment.In one embodiment, the resource location signaling includes first position information and second place information, the first position information is used for the position for indicating the measurement resource in 1 resource block, and the second place information is used to indicate the measurement resource corresponding cycle and subframe position.
In one embodiment, the measurement type signaling indicates that measurement type is channel measurement or in one embodiment by 1 bit, the interference type signaling indicates the interference type of the interferometry by N-1 bit, and N is that CoMP measures the number for concentrating transmission point and/or the number of adjacent transmission point；Or, the interference type signaling indicates that the interference type of the interferometry is the interference that the interference of other cells or CoMP measure beyond collection beyond this cell by 1 bit.
In one embodiment, the measurement type signaling and the interference type signaling are corresponded with the measurement resource；Or, the head of the measurement type signaling and the interference type signaling includes the information for being used for indicating the measurement resource respectively.
In one embodiment, the measurement resource is that zero energy channel status indicates reference signal（ZP-CSI-RS);Or, the measurement resource is that non-zero power channel status indicates reference signal（NZP-CSI-RS).
In one embodiment, first transmitting element 61 is additionally operable to：Interference type expanded signalling is sent for each user equipment in its coverage, the interference type expanded signalling is used to indicate the interference type in the corresponding different subframes of each user equipment, or for indicating the interference type on the corresponding different frequency domains of each user equipment.
In another embodiment, the transmission point device also includes：
Second transmitting element 62, its user equipment into coverage sends the measurement resource signaling of other transmission points, and measurement resource signalings of other transmission points include：Resource location signaling, measurement type signaling and interference type signaling；Or including：Resource location signaling, measurement type signaling, interference type signaling and interference type expanded signalling.Wherein, in the measurement resource signaling of other transmission points subframe and transmission cycle is different from the subframe in the measurement resource signaling that first transmitting element 61 is sent and transmission cycle.
The transmission point device of the embodiment of the present invention achieves good compromise by designing the interferometry of the signaling, the effectively single cell of support and CoMP transmission of interferometry on signaling consumption and interferometry quality.
The embodiment of the present invention additionally provides a kind of user equipment, as described in the following examples 4, because the principle that the user equipment solves problem is similar with the method for embodiment 2, therefore, and its specific implementation refer to embodiment 2, will not be repeated here.
Embodiment 4
The embodiment of the present invention additionally provides a kind of user equipment.Fig. 7 is the composition schematic diagram of the user equipment, refer to Fig. 7, the user equipment includes：
Receiving unit 71, it receives the measurement resource signaling that transmission point is sent, and the measurement resource signaling includes resource location signaling, measurement type signaling and interference type signaling；
Determining unit 72, it determines effective measurement resource according to the resource location signaling；
Measuring unit 73, it carries out interferometry according to the effective measurement resource and the measurement type signaling and the interference type signaling.
In one embodiment, the determining unit 72 includes：
First determining module 721, the position of the common signal of its determination neighbor cell regard the measurement resource in the measurement resource indicated by the resource location signaling in addition to the position of the common signal of the neighbor cell as effective measurement resource.Wherein, the neighbor cell includes the adjacent cell of cell and/or position that CoMP measures concentration.
In another embodiment, the determining unit 72 can also include or only include：
Second determining module 722, it regard the measurement resource in the measurement resource indicated by the resource location signaling in addition to the position of the common signal of this cell as effective measurement resource.
In one embodiment, the receiving unit 71 is additionally operable to receive the interference type expanded signalling that the transmission point is sent, the interference type expanded signalling is used to indicate the interference type in the corresponding different subframes of each user equipment, or for indicating the interference type on the corresponding different frequency domains of each user equipment；The measuring unit 73 further carries out interferometry according to the interference type expanded signalling.
In another embodiment, the receiving unit 71 is additionally operable to receive the measurement resource signaling for other transmission points that the transmission point is sent, and the measurement resource signaling of other transmission points includes：Resource location signaling, measurement type signaling and interference type signaling；Or including：Resource location signaling, measurement type signaling, interference type signaling and interference type expanded signalling；The measuring unit 73 further carries out interferometry according to the measurement resource signaling of other transmission points.
The user equipment of the embodiment of the present invention, the signaling for user's progress interferometry that point is sent is transmitted by receiving, and the interferometry of the effective single cell of support and CoMP transmission achieves good compromise on signaling consumption and interferometry quality.Meanwhile, in order to improve the accuracy of interferometry, in the user equipment of the present embodiment, effective interferometry resource is also further defined.
The embodiment of the present invention additionally provides a kind of computer-readable program, wherein when performing the program in transmission point, the program causes computer to perform the interference detecting method described in embodiment 1 in the transmission point.
The embodiment of the present invention additionally provides a kind of storage medium for the computer-readable program that is stored with, and the wherein computer-readable program causes computer to perform the maintaining method of the interferometry described in embodiment 1 in transmission point.
The embodiment of the present invention additionally provides a kind of computer-readable program, wherein when performing the program in a user device, the program causes computer to perform the interference detecting method described in embodiment 2 in the user equipment.
The embodiment of the present invention additionally provides a kind of storage medium for the computer-readable program that is stored with, and the wherein computer-readable program causes computer to perform the interference detecting method described in embodiment 2 in a user device.
Apparatus and method more than of the invention can be realized by hardware, can also be realized by combination of hardware software.The present invention relates to such computer-readable program, when the program is performed by logical block, the logical block can be made to realize devices described above or component parts, or the logical block is realized various methods or step described above.Logical block is such as the processor used in field programmable logic part, microprocessor, computer.The invention further relates to the storage medium for storing procedure above, such as hard disk, disk, CD, DVD, flash memory.
Above in association with specific embodiment, invention has been described, it will be appreciated by those skilled in the art that these descriptions are all exemplary, it is not limiting the scope of the invention.Those skilled in the art can make various variants and modifications to the present invention according to spirit and principles of the present invention, and these variants and modifications are also within the scope of the invention.
Claims (1)
- Claims1st, a kind of interference detecting method, wherein, methods described includes：All user equipmenies of the transmission point into its coverage send resource location signaling, and the resource location signaling is used for the position for indicating measurement resource；Transmission point sends measurement type signaling for each user equipment in its coverage, and the measurement type signaling is used for the measurement type for indicating the corresponding measurement resource of each user equipment；When the measurement type is interferometry, transmission point sends interference type signaling for each user equipment in its coverage, and the interference type signaling is used for the interference type for indicating the corresponding interferometry of each user equipment.2nd, according to the method described in claim 1, wherein,The resource location signaling includes first position information and second place information, the first position information is used for the position for indicating the measurement resource in 1 resource block, and the second place information is used to indicate the corresponding transmission cycle of the measurement resource and sub-frame offset.3rd, according to the method described in claim 1, wherein,The measurement type signaling indicates that measurement type is channel measurement or interferometry by 1 bit.4th, according to the method described in claim 1, wherein,The interference type signaling indicates the interference type of the interferometry by N-1 bit, and N is that CoMP measures the number for concentrating transmission point and/or the number of adjacent transmission point；OrThe interference type signaling indicates that the interference type of the interferometry is the interference that the interference of other cells or CoMP measure beyond collection beyond this cell by 1 bit.5th, according to the method described in claim 1, wherein,The measurement type signaling and the interference type signaling are corresponded with the measurement resource；Or the head of the measurement type signaling and the interference type signaling includes the information for being used for indicating the measurement resource respectively.6th, according to the method described in claim 1, wherein,The measurement resource is that zero energy channel status indicates reference signal（ZP-CSI-RS);OrThe measurement resource is that non-zero power channel status indicates reference signal（NZP-CSI-RS).7th, according to the method described in claim 1, wherein, methods described also includes： Transmission point sends interference type expanded signalling for each user equipment in its coverage, the interference type expanded signalling is used to indicate the interference type in the corresponding different subframes of each user equipment, or for indicating the interference type on the corresponding different frequency domains of each user equipment.8th, the method according to claim any one of 1-7, wherein, methods described also includes：User equipment of the transmission point into coverage sends the measurement resource signaling of other transmission points, and the measurement resource signaling of other transmission points includes：Resource location signaling, measurement type signaling and interference type signaling；Or including:Resource location signaling, measurement type signaling, interference type signaling and interference type expanded signalling.9th, method according to claim 8, wherein, the transmission cycle and sub-frame offset in the measurement resource signaling of each transmission point are different.10th, a kind of interference detecting method, wherein, methods described includes：User equipment receives the measurement resource signaling that transmission point is sent, and the measurement resource signaling includes resource location signaling, measurement type signaling and interference type signaling；User equipment determines effective measurement resource according to the resource location signaling；User equipment carries out interferometry according to the effective measurement resource and the measurement type signaling and the interference type signaling.11st, method according to claim 10, wherein, user equipment determines effective measurement resource according to the resource location signaling, including：User equipment determines the position of neighbor cell and/or the common signal of this cell；User equipment regard the measurement resource in the measurement resource indicated by the resource location signaling in addition to the neighbor cell and/or the position of the common signal of this cell as effective measurement resource；Wherein, the neighbor cell includes the adjacent cell of cell and/or position that CoMP measures concentration.12nd, method according to claim 10, wherein, methods described also includes：User equipment receives the interference type expanded signalling that the transmission point is sent, the interference type expanded signalling is used to indicate the interference type in the corresponding different subframes of each user equipment, or for indicating the interference type on the corresponding different frequency domains of each user equipment；User equipment further carries out interferometry according to the interference type expanded signalling.13rd, method according to claim 10, wherein, methods described also includes：User equipment receives the measurement resource signaling for other transmission points that the transmission point is sent, and the measurement resource signaling of other transmission points includes：Resource location signaling, measurement type signaling and interference type signaling；Or including：Money Source position signaling, measurement type signaling, interference type signaling and interference type expanded signalling；User equipment further carries out interferometry according to the measurement resource signaling of other transmission points.14th, a kind of transmission point device, wherein, the transmission point device includes：First transmitting element, its all user equipment into its coverage sends resource location signaling, measurement type signaling is sent for each user equipment in its coverage, when measurement type is interferometry, interference type signaling is sent for each user equipment in its coverage, whereinThe resource location signaling is used for the position for indicating measurement resource；The measurement type signaling is used for the measurement type for indicating the corresponding measurement resource of each user equipment；The interference type signaling is used for the interference type for indicating the corresponding interferometry of each user equipment.15th, transmission point device according to claim 14, wherein,The resource location signaling includes first position information and second place information, the first position information is used for the position for indicating the measurement resource in 1 resource block, and the second place information is used to indicate the corresponding transmission cycle of the measurement resource and sub-frame offset.16th, transmission point device according to claim 14, wherein,The measurement type signaling indicates that measurement type is channel measurement or interferometry by 1 bit.17th, transmission point device according to claim 14, wherein,The interference type signaling indicates the interference type of the interferometry by N-1 bit, and N is that CoMP measures the number for concentrating transmission point and/or the number of adjacent transmission point；OrThe interference type signaling indicates that the interference type of the interferometry is the interference that the interference of other cells or CoMP measure beyond collection beyond this cell by 1 bit.18th, transmission point device according to claim 14, wherein,The measurement type signaling and the interference type signaling are corresponded with the measurement resource；Or the head of the measurement type signaling and the interference type signaling includes the information for being used for indicating the measurement resource respectively.19th, transmission point device according to claim 14, wherein,The measurement resource is that zero energy channel status indicates reference signal（ZP-CSI-RS);OrThe measurement resource is that non-zero power channel status indicates reference signal（NZP-CSI-RS).20th, transmission point device according to claim 14, wherein, first transmitting element is additionally operable to：Interference type expanded signalling, the interference type extension letter are sent for each user equipment in its coverage Make for indicating the interference type in the corresponding different subframes of each user equipment, or for indicating the interference type on the corresponding different frequency domains of each user equipment.21st, the transmission point device according to claim any one of 14-20, wherein, the transmission point device also includes：Second transmitting element, its user equipment into coverage sends the measurement resource signaling of other transmission points, and measurement resource signalings of other transmission points include：Resource location signaling, measurement type signaling and interference type signaling;Or including：Resource location signaling, measurement type signaling, interference type signaling and interference type expanded signalling.22nd, transmission point device according to claim 21, wherein, the transmission cycle and sub-frame offset in the measurement resource signaling of each transmission point are different.23rd, a kind of user equipment, wherein, the user equipment includes：Receiving unit, it receives the measurement resource signaling that transmission point is sent, and the measurement resource signaling includes resource location signaling, measurement type signaling and interference type signaling；Determining unit, it determines effective measurement resource according to the resource location signaling；Measuring unit, it carries out interferometry according to the effective measurement resource and the measurement type signaling and the interference type signaling.24th, user equipment according to claim 23, wherein, the determining unit includes：The position of the common signal of the first determining module, its determination neighbor cell and/or this cell, regard the measurement resource in the measurement resource indicated by the resource location signaling in addition to the position of the common signal as effective measurement resource；Wherein, the neighbor cell includes the adjacent cell of cell and/or position that CoMP measures concentration.25th, user equipment according to claim 23, wherein,The receiving unit is additionally operable to receive the interference type expanded signalling that the transmission point is sent, the interference type expanded signalling is used to indicate the interference type in the corresponding different subframes of each user equipment, or for indicating the interference type on the corresponding different frequency domains of each user equipment；The measuring unit further carries out interferometry according to the interference type expanded signalling.26th, user equipment according to claim 23, wherein,The receiving unit is additionally operable to receive the measurement resource signaling for other transmission points that the transmission point is sent, and the measurement resource signaling of other transmission points includes：Resource location signaling, measurement type signaling and interference type signaling；Or including：Resource location signaling, measurement type signaling, interference type signaling and interference type expanded signalling； The measuring unit further carries out interferometry according to the measurement resource signaling of other transmission points.27th, a kind of computer-readable program, wherein, when performing the program in transmission point, the program causes computer perform claim in the transmission point to require the interference detecting method described in any one of 1-9.28th, the embodiment of the present invention additionally provides a kind of storage medium for the computer-readable program that is stored with, and the wherein computer-readable program causes computer perform claim in transmission point to require the interference detecting method described in any one of 1-9.29th, a kind of computer-readable program, wherein, when performing the program in a user device, the program causes computer perform claim in the user equipment to require the interference detecting method described in any one of 10-13.30th, a kind of storage medium for the computer-readable program that is stored with, the wherein computer-readable program cause computer perform claim in terminal device to require the interference detecting method described in any one of 10-13.
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| PCT/CN2012/070819 WO2013113157A1 (en) | 2012-02-01 | 2012-02-01 | Interference measurement method and device |
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| CN110546910A (en) * | 2017-03-23 | 2019-12-06 | 株式会社Ntt都科摩 | Reference signal sending method, channel measuring method, wireless base station and user terminal |
| WO2020108502A1 (en) * | 2018-11-29 | 2020-06-04 | 索尼公司 | Electronic device and method for wireless communication system, and storage medium |
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| CN111629387B (en) * | 2014-05-19 | 2024-07-02 | 北京三星通信技术研究有限公司 | Interference detection method and equipment on unlicensed frequency band |
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