CN103546262A - Method and device for reporting channel state information - Google Patents

Method and device for reporting channel state information Download PDF

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Publication number
CN103546262A
CN103546262A CN201210239102.XA CN201210239102A CN103546262A CN 103546262 A CN103546262 A CN 103546262A CN 201210239102 A CN201210239102 A CN 201210239102A CN 103546262 A CN103546262 A CN 103546262A
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China
Prior art keywords
group
subset
information
associating
many group
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CN201210239102.XA
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Chinese (zh)
Inventor
周明宇
任晓涛
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Priority to CN201210239102.XA priority Critical patent/CN103546262A/en
Priority to PCT/CN2013/075128 priority patent/WO2014008779A1/en
Publication of CN103546262A publication Critical patent/CN103546262A/en
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/0001Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0026Transmission of channel quality indication
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/0001Arrangements for dividing the transmission path
    • H04L5/0014Three-dimensional division
    • H04L5/0023Time-frequency-space
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048Allocation of pilot signals, i.e. of signals known to the receiver
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053Allocation of signaling, i.e. of overhead other than pilot signals
    • H04L5/0057Physical resource allocation for CQI

Abstract

The invention provides a method and a device for reporting channel state information. The method includes receiving a plurality of groups of RSs (reference signals) transmitted by the network equipment through UE (user equipment); measuring the groups of RSs to obtain measuring results and acquiring jointed downlink CSI (channel state information) of the RSs according to the measuring results of the RSs; reporting the jointed downlink CSI to the network equipment. The UE measures the groups of RSs transmitted by the network equipment and acquires the jointed downlink CSI of the groups of the RSs according to the measuring results of the groups of RSs, and measuring accuracy of the downlink CSI is improved.

Description

The method and apparatus of reporting status information of channel
Technical field
The present invention relates to the communications field, relate in particular to the method and apparatus that uses downlink reference signal.
Background technology
The difference of the channel fading of different frequency bands is conventionally larger, if the network equipment sends data to subscriber equipment (User Equipment, UE) on the good frequency band of channel condition, can promote efficiency of transmission and reliability.Therefore in order to carry out rational frequency domain dispatching; the network equipment can send downlink reference signal (Reference Signal to UE conventionally; RS); the further evolution of Long Term Evolution (Long Term Evolution-Advanced for example; LTE-A) channel condition information-reference signal in system (Channel State Information-Reference Signal, CSI-RS).UE, after receiving descending RS, can measure the descending RS receiving, and report descending CSI to the network equipment.
Conventionally, on the one hand, the resource that sends descending RS for the network equipment is more, and UE is higher to the certainty of measurement of descending CSI; On the other hand, owing to conventionally can not being used to transmit data for sending the resource of these descending RS, so the network equipment is fewer for sending the resource of descending RS, and the expense that these descending RS take is also just less.In order to obtain one, trade off, in system, the network equipment can be by sending to UE the Resource Density that signaling is carried out configurating downlink RS.For example, in LTE-A system, the network equipment can send the transmission cycle that signaling configures CSI-RS to UE, the transmission cycle of minimum CSI-RS is 5 Transmission Time Intervals (Transmission Time Interval, TTI), particularly, the network equipment and UE pre-set the configuration that a plurality of CSI-RS send the cycle, the network equipment sends the numbering of these configurations to UE, UE just can send cycle allocation list to obtain the configuration in the transmission cycle of the definite CSI-RS of the network equipment according to this numbering inquiry CSI-RS.
The such scheme of prior art has only considered that individual node serves the scene of a certain UE, in this scene, the best node of channel conditions in the normally all nodes of the individual node of service UE, so the minimum value of the such scheme Resource Density design that is descending RS can meet the certainty of measurement of the descending CSI that individual node is corresponding in this case.For example: in LTE-A system, with the minimum transmission cycle, be that 5 TTI send CSI-RS and can guarantee certainty of measurement.Along with coordinate multipoint sending/receiving (Coordinated Multiple Point transmission/reception, CoMP) appearance of technology, a certain UE can be served by a plurality of nodes, and correspondingly, UE just need to measure the descending CSI that a plurality of nodes are corresponding.At a plurality of nodes, serve in the scene of a certain UE, have the channel conditions of some nodes conventionally poor, now the minimum value in the transmission cycle of above-mentioned for example CSI-RS just cannot meet the certainty of measurement of the descending CSI that these nodes are corresponding.For example, in LTE-A system, node 1 and node 2 be service UE 1 simultaneously, the channel conditions of node 1 is better, and the channel conditions of node 2 is poor, the design that the minimum transmission cycle is 5 TTI can meet the certainty of measurement of UE to the descending CSI of node 1 correspondence, but can not meet the certainty of measurement of the descending CSI of node 2 correspondences.
Summary of the invention
The invention provides method, subscriber equipment and the network equipment of reporting status information of channel, to strengthen the certainty of measurement of descending CSI.
First aspect, provides a kind of method of reporting status information of channel, and described method comprises:
User equipment (UE) receives many groups reference signal RS that the network equipment sends;
Measure the measurement result that described many group RS obtain respectively organizing RS, according to the described measurement result of described many group RS, obtain the downlink channel condition information CSI of the associating of described many group RS; And
The descending CSI of described associating is reported to the described network equipment.
Second aspect, provides a kind of method of reporting status information of channel, and described method comprises:
The network equipment sends many group reference signal RS to user equipment (UE); And
Receive the downlink channel condition information CSI of the associating that described UE reports to the described network equipment, wherein, the descending CSI of described associating is that described UE to the described described descending CSI that organizes the associating of RS obtaining according to the measurement result of described many group RS after RS measure that organizes more more.
The third aspect, provides a kind of subscriber equipment, and described subscriber equipment comprises:
Receiver module, the many groups reference signal RS sending for receiving the network equipment, and to the described many group RS of acquisition module transmission;
Described acquisition module, for measuring described many group RS of described receiver module transmission, obtain respectively organizing the measurement result of RS, according to the described described measurement result of respectively organizing RS, obtain the downlink channel condition information CSI of the associating of described many group RS, and to sending module, transmit the descending CSI of described associating; And
Described sending module, for reporting the described network equipment by the descending CSI of the described associating of described acquisition module transmission.
Fourth aspect, provides a kind of network equipment, and the described network equipment comprises:
Sending module, for sending many group reference signal RS to user equipment (UE); And
Receiver module, for receiving the downlink channel condition information CSI of the associating that described UE reports to the described network equipment, wherein, the descending CSI of described associating is that described UE to the described described descending CSI that organizes the associating of RS obtaining according to the measurement result of described many group RS after RS measure that organizes more more.
The method of above-mentioned reporting status information of channel, subscriber equipment and the network equipment, many groups RS that can make UE send by measuring the network equipment, and according to the measurement result of many groups RS, obtain the descending CSI of the associating of many group RS, thus strengthen the certainty of measurement of descending CSI.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the embodiment of the present invention, to the accompanying drawing of required use in prior art or embodiment description be briefly described below, apparently, accompanying drawing in the following describes is only some embodiment, for those skilled in the art, can also utilize these accompanying drawings to obtain other accompanying drawing.
Fig. 1 is the method flow schematic diagram of a kind of reporting status information of channel of providing of the embodiment of the present invention;
Fig. 2 is the schematic diagram of many groups RS shared Resource Unit (Resource Element, RE) in a Physical Resource Block (Physical Resource Block, PRB) of sending of the network equipment that provides of the embodiment of the present invention;
Fig. 3 is a schematic diagram of many groups RS shared RE in a PRB of sending of the network equipment that provides of the embodiment of the present invention;
Fig. 4 is the method flow schematic diagram of the another kind of reporting status information of channel that provides of the embodiment of the present invention;
Fig. 5 is that a plurality of communities of providing of the embodiment of the present invention are to the schematic diagram of UE transmitted signal;
Fig. 6 is that the Transmission Time Interval (Transmission Time Interval, TTI) that the network equipment that provides of the embodiment of the present invention sends many group RS is related to schematic diagram;
Fig. 7 is the user device architecture schematic diagram that the embodiment of the present invention provides;
Fig. 8 is a kind of network equipment structural representation that the embodiment of the present invention provides;
Fig. 9 is another network equipment structural representation that the embodiment of the present invention provides.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, the every other embodiment that those skilled in the art obtain, belongs to the scope of protection of the invention.
It should be noted that, in the situation that not conflicting, the feature in the embodiment of the present invention and embodiment is combination in any mutually.
In the prior art of for example LTE-A, a TTI is 1ms, comprises 14 symbols; System bandwidth comprises a plurality of Physical Resource Block (Physical Resource Block, PRB), the bandwidth of a PRB comprises 12 subcarriers, and a Resource Unit (Resource Element, RE) occupies a subcarrier, in time domain, occupies a symbol lengths on frequency domain.The network equipment, in order to obtain descending CSI, can send RS in each PRB.After UE receives RS, the RS receiving by measurement just can obtain descending CSI, and the descending CSI obtaining is fed back to the network equipment.Conventionally, the network equipment periodically sends for measuring the descending RS of descending CSI to UE, and for example, the transmission cycle is 5 TTI, and time migration is 0 TTI, and like this, UE is just being numbered 0,5,10 ... TTI upper measure descending RS to obtain descending CSI.When down channel situation corresponding to certain node is poor, even if the network equipment sends descending RS according to the minimum transmission cycle to UE, the accuracy of the descending CSI that UE measures is still not high enough.
In addition, in order to address the above problem, a kind of solution of prior art is the Resource Density that increases descending RS, and 2 TTI of for example take send descending RS as the transmission cycle.Yet in above-mentioned prior art, the shortcoming of method that increases the Resource Density of descending RS is to need the network equipment and UE all to increase new Resource Density, for example, sends descending RS with the less transmission cycle, or use more frequency resource to send descending RS.Concrete, can be on the basis of the existing CSI-RS transmission of LTE-A cycle allocation list, to increase the transmission cycle config option of CSI-RS, be convenient to the network equipment to UE send signaling, for example, by the transmission cycle configuration notification UE of the CSI-RS in the less transmission of correspondence cycle (the transmission cycle is 2 TTI), thereby make UE detect CSI-RS according to this less transmission cycle, this needs UE and the network equipment all to carry out corresponding modify.
For the not high enough problem of the accuracy of the descending CSI that in above-mentioned prior art, UE measures, the embodiment of the present invention proposes the network equipment and sends many group RS to UE, UE is measured many groups RS, and according to the measurement result of many groups RS, obtain the descending CSI of the associating of more accurate many group RS.Meanwhile, the embodiment of the present invention sends in cycle allocation list and increases Resource Density option without the CSI-RS at the network equipment and UE, thereby has good compatibility.
On the one hand, one embodiment of the invention provides a kind of method of reporting status information of channel, and as shown in Figure 1, the method comprises the steps.
Step 101, the network equipment sends many group RS to UE;
In this step, organizing RS can be many groups RS with different attribute more.One group of RS can comprise the RS that at least one antenna port is corresponding (RS of follow-up abbreviation).Same group of RS refers to one or more RS of identical signal deployment, and RS is not by different signal deployments on the same group, and therefore, the attribute of same group of RS is identical.
For example, the network equipment sends signaling first to UE, UE can by this signaling know the information of all RS that adopt identical signal deployment, thereby can receive this group RS.For example, the network equipment sends the RE information of a RS in one group of RS to UE, and UE can be known RE corresponding to all RS in this group RS by this information.
In a kind of example, attribute can comprise: one or more in RE corresponding to the time migration in the transmission cycle of RS, same transmission cycle and RS.For example: described many group RS are many groups RS of following a kind of or combination in any: have many groups RS in different transmission cycles, the many groups RS with different time skew in the same transmission cycle and many groups RS of corresponding different RE.Different RE can be for transmitting the RE with different sub carrier numbering and/or symbol number of RS in a TTI herein.
For example,
In having two groups of RS in different transmission cycle, the transmission cycle of the 1st group of RS is 5 TTI, and the transmission cycle of the 2nd group of RS is 10 TTI;
In two groups of RS with different time skew within the same transmission cycle, the 1st and transmission cycle of 2 groups of RS be all 5 TTI, but the 1st and the time migration of 2 groups of RS be respectively 0 and 2 TTI;
In two groups of RS of the different RE of correspondence, in a PRB, the 1st and RE corresponding to 2 groups of RS as shown in Figure 2, in a PRB, the 1st group of RE that RS is corresponding is (5,9) and (6,9), the 2nd group of RE that RS is corresponding is (5,3) and (6,3), wherein RE can pass through (t, k) represent its symbol number and subcarrier number, t represents the symbol number of this RE correspondence in a TTI, and k represents the subcarrier number of this RE correspondence on a PRB.
Or two groups of RS are the combination of above-mentioned any three kinds of examples, for example different and corresponding different RE of the transmission cycle of two groups of RS, repeats no more here.
In another example, attribute can also comprise: the classification of RS.Therefore, in this example, described many group RS can be the RS that classification is different, and wherein, classification comprises public reference signal (Common Reference Signal, CRS) and CSI-RS.
RS comprises CRS and CSI-RS, and wherein CRS can be sent out at each TTI, but can only be numbered 0~3 antenna port by 4 at most, is sent out; It can be 5 TTI that the minimum of CSI-RS sends the cycle, and multipotency is numbered 15~22 antenna ports by 8 and is sent out.
In the embodiment of the present invention, when the antenna port of the network equipment by same number is with identical physical antenna during to UE transmission CRS and CSI-RS, owing to now sending the channel of CRS and CSI-RS, be identical, therefore can be by CRS and CSI-RS be measured to the measurement result obtaining separately, and according to the measurement result of CRS and CSI-RS, obtain the descending CSI of the associating of CRS and CSI-RS, thereby can improve certainty of measurement.For example, the network equipment sends the 1st group of CRS and the 2nd group of CSI-RS by identical physical antenna to UE, wherein, the 1st group of CRS that CRS respective antenna port numbering is 0~3, its transmission cycle is 1 TTI, the 2nd group of CSI-RS that CSI-RS respective antenna port numbering is 15~18, its transmission cycle is 5 TTI; The RE that these two groups of RS are corresponding different, as shown in Figure 3; UE receives the 1st group of RE that CRS is corresponding and the 1st group of CRS is measured, can obtain the measurement result of the CRS of antenna port 0~3 correspondence; Receive the 2nd group of RE that CSI-RS is corresponding and the 2nd group of CSI-RS measured, just can obtain the measurement result of the CSI-RS of antenna port 15~18 correspondences.Due in this example, the antenna port (as 4 antenna ports) of the 1st group of CRS and the 2nd group of corresponding same number of CSI-RS, and be that the network equipment passes through identical physical antenna (for example 4 physical antennas) and sends, the channel that these two groups of RS are corresponding is the same, can obtain and combine more accurately descending CSI according to the measurement result of the 1st group of CRS and the 2nd group of CSI-RS so.
The difference of physical antenna and antenna port is once described here.What physical antenna was corresponding is actual antenna, antenna port is the discernmible virtualized antenna of UE, for example, an actual network equipment comprises 4 physical antennas, if these 4 physical antennas send identical signal (input a road signal, it is copied to 4 physical antennas, is equivalent to 1 road signal and is multiplied by the matrix of 4 * 1), for UE, can only tell 1 road antenna port, also 4 physical antennas to be virtualized be an antenna port; If the network equipment sends the different signal in 4 tunnels by 4 physical antennas, and UE can tell 4 road signals, and to be virtualized be 4 antenna ports to 4 physical antennas.Therefore, in upper example, although the antenna port numbering that the network equipment sends RS to UE is different, but the network equipment can send RS by identical physical antenna, for example, in 4 physical antenna situations, the network equipment can be used identical physical antenna to send to be numbered the CRS that 0~3 antenna port is corresponding and be numbered 15~18 CSI-RS corresponding to antenna port, CRS, with CSI-RS with regard to corresponding identical channel fading, strengthens certainty of measurement thereby just can measure more RS by the embodiment of the present invention like this.
The network equipment can send one group of RS by least 1 antenna port, and to UE, notifies the RE information of this or these RS by signaling.For example, the network equipment sends one group of RE numbering that RS is corresponding to UE, and notifies corresponding 2 antenna ports of this group of UE RS, after UE receives, just according to this, numbers to determine the RE corresponding to RS of 2 antenna ports.
Optionally, in the present embodiment, described many group RS can also belong to the first subset, wherein, described the first subset belongs to a set, and described set comprises at least 2 subsets, in the application, all set in described set except described the first subset are called the second subset.Now, in this step, one or more groups RS of described the second subset that the described network equipment also sends to described UE.Certainly, one or more groups RS of described the second subset that the described network equipment also can not send to described UE in this step, but send respectively the corresponding many group RS of each subset.
UE, after receiving one or more groups included RS of this second subset, can, according to the measurement result of one or more groups RS corresponding to subset, obtain descending CSI corresponding to this second subset; If described the second subset comprises one group of RS, UE, after receiving one group of included RS of this second subset, can obtain according to this second subset the descending CSI of the corresponding one group of RS of this second subset; If described the second subset comprises many group RS, UE, after receiving the included many groups RS of this second subset, can obtain according to this second subset the descending CSI of the associating of many groups RS corresponding to this second subset.By this optional embodiment, UE can be divided into a plurality of subsets the many groups RS receiving, thereby makes the feature ,Ru community that different subsets can be corresponding different.For example, the network equipment sends 6 groups of RS to UE, and wherein, the 1st, 3 groups of RS are the 1st subset, and UE obtains the descending CSI of associating corresponding to the 1st subset according to the measurement result of the 1st, 3 groups of RS; The 4th group of RS is the 2nd subset, and UE measures the 4th group of RS and obtains descending CSI corresponding to the 2nd subset; 5th, 6 groups of RS are the 3rd subset, and UE obtains the descending CSI of associating corresponding to the 3rd subset according to the measurement result of the 5th, 6 groups of RS.
Further, optional, for arbitrary group of RS in many groups RS, the network equipment can also send to UE the subset information of many group RS; So that the subset information that UE can send according to the network equipment is determined the corresponding relation of respectively organizing RS and each subset, and obtain the descending CSI of the associating of subset according to the measurement result of RS group corresponding to subset.Subset information can comprise: number of subsets, and one or more in the corresponding relations of one or more subset and many group RS etc.
It should be noted that, the description to " group " and " subset " in the embodiment of the present invention, might not need the network equipment or UE to have the operation of " division group " or " dividing subset ", but for the ease of clearer description.For the relation between subset and group, using the RS with different characteristic as different subsets, there is the RS group of same characteristic features as same subset, wherein feature comprises and sends the physical antenna of RS and/or antenna port corresponding to RS etc.For example: using the RS group being sent by different physical antennas or the RS group that is mapped to different antennae port or the RS group with other different characteristics as different subsets, the RS group of same characteristic features is as same subset.And " group " is hereinafter identical therewith with the description of " subset ".
Alternatively, before step 101, the embodiment of the present invention one can also comprise: the network equipment can send the information of many group RS in advance to UE, is convenient to UE and receives many group RS according to the information of this many group RS.Wherein, the information of organizing RS can comprise one or more in the number of the transmission cycle, RS sequence information of RS and antenna port corresponding to every group of RS etc. more.
Alternatively, in step 101, the network equipment can be used different power to send described many group RS to UE, now, the embodiment of the present invention one can also comprise step: the network equipment sends power information corresponding to many group RS to UE, so that UE obtains the descending CSI of associating according to this power information and measurement result.
Step 102, receives the described descending CSI that organizes the associating of RS that described UE reports more, and the descending CSI of wherein said associating is that described UE measures the descending CSI of the associating of many groups RS that also measurement result of the many groups of basis RS is obtained to described many group RS.
In this step, descending CSI can comprise order indication (Rank Indicator, RI), pre-coding matrix indication (Precoding Matrix Indicator, PMI), channel quality indication (Channel Quality Indicator, CQI), Reference Signal Received Power (Reference Signal Received Power, RSRP), Reference Signal Received Quality (Reference Signal Received Quality, RSRQ) and organize one or more in the time of reception deviation of RS more.
Wherein, RI is used to indicate the amount of space transmission of UE suggestion; PMI is used to indicate the pre-coding matrix of the suitable use of the network equipment of UE suggestion, CQI is used to indicate Modulation and Coding Scheme (the Modulation and Coding Scheme of UE suggestion, MCS), RSRP is used to indicate the received power of the descending RS that UE measures, (RSRQ is used to indicate the quality of reception that descending RS that UE measures is corresponding, the noise jamming situation that descending RS is subject to, Signal to Interference plus Noise Ratio (Signal to Interference plus Noise Ratio, SINR) for example); Time of reception deviation refers to that UE receives not time of reception poor of RS on the same group, and for example UE is by detecting the 1st group of RS, knows that the time that the 1st group of RS arrives UE is T1; By detecting the 2nd group of RS, know that the time of the 2nd group of RS arrival UE is T2, UE just can be to the time of reception deviations of the many groups of network equipment report RS, and as example above, time of reception deviation is T2-T1.
In the embodiment of the present invention, the network equipment can be base station (Base Station, BS), access point (Access Point, AP), far-end wireless device (Remote Radio Equipment, RRE), far-end radio port (Remote Radio Head, RRH), far-end radio-cell (Remote Radio Unit, RRU) or via node (Relay node) etc.
In addition, if also sent subset corresponding to one or more groups RS corresponding to the second subset in step 101, in this step, also receive descending CSI corresponding to described the second subset that described UE reports, wherein, if described the second subset correspondence is organized RS more, descending CSI corresponding to described the second subset is the descending CSI of the associating of many groups RS corresponding to described the second subset.
Alternatively, before step 102, the embodiment of the present invention one can also comprise: for arbitrary group of RS in many groups RS, the network equipment sends to UE the associating obtaining information that this group RS is corresponding, whether associating obtaining information can be: the measurement result of a certain group of RS is joined in the descending CSI that obtains associating, or the subset of a certain group of RS ownership, or whether according to the measurement result of all groups of RS, obtain the descending CSI etc. of the associating of all groups of RS, so that UE is the associating obtaining information that every group of RS sends according to the network equipment, judge whether that the measurement result that this need to be organized to RS joins the descending CSI that obtains associating, or judge that the subset of this group RS ownership is to obtain the descending CSI of the associating of this subset, or judge whether to obtain according to the measurement result of all groups of RS the descending CSI of the associating of all groups of RS.
In the embodiment of the present invention, the network equipment will be organized RS more and send to UE, and receive the descending CSI of the associating that the measurement result according to many groups RS that UE reports obtains, rather than receive the descending CSI that pass through to measure one group of RS acquisition that UE reports, thus strengthened certainty of measurement.And, the embodiment of the present invention also can improve certainty of measurement in the situation that the network equipment does not increase Resource Density option, for example do not need to increase the density of CSI-RS, minimum density still maintains 5 TTI once, do not need to change the configuration of prior art, therefore there is good compatibility with the design of prior art yet.
Second aspect, another embodiment of the present invention also provides a kind of method of reporting status information of channel.In the present embodiment, be the embodiment of the method with the corresponding UE side of embodiment of the above-mentioned network equipment, can be with reference to the description in above-described embodiment.As described in Figure 4, the method comprises the steps.
Step 401, UE receives many groups RS that the network equipment sends.
In this step, organizing RS can be the different RS with different attribute more.One group of RS can comprise at least one RS.
In a kind of example, attribute can comprise: the transmission cycle of RS, the time migration in the same transmission cycle, and one or more in RE corresponding to RS.For example: described many group RS are many groups RS of following a kind of or combination in any: have many groups RS in different transmission cycles, the many groups RS with different time skew in the same transmission cycle and/or many groups RS of corresponding different RE.
In another example, attribute can also comprise: the classification of RS.Classification can comprise CRS and CSI-RS.
Alternatively, before step 401, the embodiment of the present invention two can also comprise: UE can receive the information of many groups RS of network equipment transmission in advance; In step 401, UE receives many group RS according to the information of this many group RS.Wherein, the information of organizing RS can comprise one or more in the number of the transmission cycle, RS sequence information of RS and antenna port corresponding to every group of RS etc. more.
Step 402, the many groups RS that measures network equipment transmission obtains respectively organizing the measurement result that RS is corresponding, obtains the descending CSI of the associating of many group RS according to the measurement result of many groups RS.
Wherein, descending CSI can comprise RI, PMI, CQI, RSRP, RSRQ and organize one or more in the time of reception deviation of RS more, and the effect of above-mentioned various descending CSI can, with reference to described in embodiment mono-, repeat no more herein.
It should be noted that, for above-mentioned various descending CSI, UE can measure the different parameter of the many groups RS sending, thereby obtains the descending CSI of the associating that will report, and for example, can be the SINR that measures RS, or CQI etc.The embodiment of the present invention does not limit the method that each group RS is measured, and in prior art, for measuring the method for RS, all can be applied to the embodiment of the present invention.For example UE is used the CSI-RS of the upper network equipment transmission of storing of this UE and the CSI-RS that this UE receives to carry out convolution operation to obtain CSI.Wherein, CSI-RS is a sequence normally, and for example a PRB comprises a RE, 100 CSI-RS sequences that PRB is 100 with regard to corresponding length.Concrete method of measurement belongs to prior art, repeats no more herein.
In the present embodiment, UE is by many groups RS is measured, and the descending CSI that corresponding measurement result acquisition is combined according to described many group RS, thereby can obtain more accurate descending CSI.
Optionally, in the present embodiment, optional, in the present embodiment, described many group RS can also belong to the first subset, and wherein, described the first subset belongs to a set, described set comprises at least 2 subsets, and in the application, all set in described set except described the first subset are called the second subset.Now, in step 301, described UE also receives the described network equipment to one or more groups RS of described second subset of described UE transmission.Certainly, described UE also can not receive one or more groups RS of described second subset of described network equipment transmission in step 401, but before or after step 401, receives corresponding one or more groups RS of described the second subset.Accordingly, in step 402 or before or after, described UE measures the RS of described the second subset and obtains the measurement result of respectively organizing RS corresponding to described the second subset, and according to the measurement result of respectively organizing RS of described the second subset, obtains the descending CSI of the second subset.Wherein, if described the second subset comprises many group RS, the descending CSI of described the second subset is the descending CSI of associating, if described the second subset comprises one group of RS, the descending CSI of described the second subset is the descending CSI of described one group of RS.
Same as the previously described embodiments, the description to " group " and " subset " in the present embodiment, might not need the network equipment or UE to have the operation of " division group " or " dividing subset ", but for the ease of clearer description.For the relation between subset and group, using the RS with different characteristic as different subsets, there is the RS group of same characteristic features as same subset, wherein feature comprises and sends the physical antenna of RS and/or antenna port corresponding to RS etc.For example: using the RS group being sent by different physical antennas or the RS group that is mapped to different antennae port or the RS group with other different characteristics as different subsets, the RS group of same characteristic features is as same subset.And " group " in embodiment is below identical therewith with the description of " subset ", repeats no more.
Optionally, for arbitrary group of RS in many groups RS, UE can also receive the subset information that the network equipment sends to UE; Now, the subset information that UE also sends according to the network equipment, determines the corresponding relation of all RS groups and subset, thereby obtains the descending CSI of the associating of each subset according to the measurement result of many groups RS corresponding to subset.
For example, it is that number of subsets is 2 that the network equipment sends subset information to UE, and send 4 groups of RS to UE, these 4 groups of RS are divided into 2 subsets, UE just can be known according to subset information: 1st, 2 groups of corresponding the 1st subsets of RS, and UE obtains the descending CSI of the associating of the 1st subset according to the measurement result of the 1st, 2 groups of RS; 3rd, 4 groups of corresponding the 2nd subsets of RS, UE obtains the descending CSI of the associating of the 2nd subset according to the measurement result of the 3rd, 4 groups of RS.Now, UE only need to be known subset information, and when obtaining the descending CSI of associating, this UE can be included into different subsets by RS group according to the rule of self.For example, the RS that UE can comprise according to all subsets organizes the same number of rule RS group is included in different subsets.
Step 403, described UE reports three or four hundred network equipments by the descending CSI of the described associating of obtaining.
In this step, UE can report the moment that the descending CSI of the associating of obtaining is reported to the network equipment, and wherein, UE reports constantly by network equipments configuration.Concrete reporting belongs to prior art, repeats no more herein.
In the embodiment of the present invention, UE receives many groups RS that the network equipment sends, and to the described network equipment, report the descending CSI of the associating of obtaining according to the measurement result of described many group RS, rather than report the descending CSI obtaining by measuring one group of RS, thus strengthened certainty of measurement.And, the embodiment of the present invention also can improve certainty of measurement in the situation that the network equipment does not increase Resource Density option, for example do not need to increase the density of CSI-RS, minimum density still maintains 5 TTI once, do not need to change the configuration of prior art, therefore there is good compatibility with the design of prior art yet.
As RSRQ as example, the embodiment of the present invention is further illustrated below take CSI, what now UE measured is respectively to organize the SINR that RS is corresponding, but it should be noted that, the embodiment of the present invention is not limited to the situation that CSI is RSRQ, execution mode and RSRQ for other CSI are similar, repeat no more herein.
For example, the network equipment sends the 1st group of RS being numbered on 0 TTI, send the 2nd group of RS being numbered on 2 TTI, UE is respectively SINR0 and SINR2 to the 1st group and the 2nd group of SINR that RS measures, when reporting, be while being numbered 4 TTI constantly, UE obtains the descending CSI of associating according to the 1st group and the 2nd group of measurement result SINR0 that RS is corresponding and SINR2, for example UE obtains the descending CSI of associating according to (SINR0+SINR2)/2, now, in this step, UE is being numbered 4 TTI by the descending CSI of this associating, in this example, be (SINR0+SINR2)/2, report the network equipment.Further, when two groups of RS periodically send, now, UE measures these two groups of RS periodically after receiving two groups of RS that the network equipment periodically sends to UE, and obtain the descending CSI of periodic associating according to two groups of measurement results corresponding to RS, and periodically report the descending CSI of the associating of obtaining.It should be noted that, when described many group RS that the described network equipment periodically sends to UE, described UE periodically reports the described network equipment by the descending CSI of described associating; Now, the descending CSI that obtains the associating of many group RS according to the described described measurement results of organizing RS comprises more: described UE obtains the descending CSI of the associating of the many groups RS obtaining in described report cycle according to the measurement result of the described many group RS that receive in a certain report cycle; Or described UE obtains the descending CSI of the associating of described many group RS according to the measurement result of the described many group RS that receive before the many groups RS receiving in a certain report cycle and described report cycle; Or the measurement result of respectively organizing RS receiving in the last time respectively while arriving according to report cycle in many groups RS, described UE obtains the descending CSI of the associating of described many group RS.For example, 1st, the transmission cycle of 2 groups of RS is all 5 TTI, time migration is respectively 0,2 TTI,, as shown in Figure 6, the network equipment is being numbered 0,5,10 ... TTI upper send the 1st group of RS, be numbered 2,7,12 ... TTI upper send the 2nd group of RS, UE is just being numbered 0,2,5,7,10,12 ... TTI upper measure the 1st, 2 groups of RS.For example, the SINR that UE measures many groups RS is respectively SINR0, SINR2, SINR5, SINR7 ..., then, the SINR that UE periodically measures according to these obtains the descending CSI of associating.For example, when reporting, be that while being numbered 4 TTI, UE obtains the descending CSI of associating according to SINR0 and SINR2, for example (SINR0+SINR2)/2 constantly.When reporting, be that while being numbered 9 TTI, UE obtains the descending CSI of associating according to SINR5 and SINR7 constantly.Or UE can also be according to SINR0, SINR2, SINR5 and SINR7 obtain the descending CSI of associating etc.
By the method for the present embodiment, UE just can, by measuring many group RS, obtain the more descending CSI of associating according to the measurement result of many groups RS, rather than report the descending CSI obtaining by measuring one group of RS, thereby strengthen the certainty of measurement of descending CSI.The embodiment of the present invention also can improve certainty of measurement in the situation that UE does not increase Resource Density option, for example do not need to increase the density of CSI-RS, minimum density still maintains 5 TTI once, does not need to change the configuration of prior art, therefore has good compatibility with the design of prior art.
Alternatively, before step 402, the embodiment of the present invention two can also comprise: for arbitrary group of RS in many groups RS, UE receives associating obtaining information corresponding to this group RS that the network equipment sends to UE; Whether associating obtaining information can be: the measurement result of a certain group of RS is joined in the descending CSI that obtains associating, or the subset of a certain group of RS ownership, or whether according to the measurement result of all groups of RS, obtain the descending CSI etc. of the associating of all groups of RS; And, UE is the associating obtaining information that every group of RS sends according to the network equipment, judge whether that the measurement result that this need to be organized to RS joins in the descending CSI that obtains associating, or judge that the subset of this group RS ownership is to obtain the descending CSI of the associating of this subset, or judge whether to obtain according to the measurement result of all groups of RS the descending CSI of the associating of all groups of RS.
For example, for each RS group, associating obtaining information only comprises 1 bit, and this associating obtaining information is to represent that this group RS does not add in the descending CSI that obtains associating at 0 o'clock, is 1 and represents that this group RS adds in the descending CSI that obtains associating.For example, the network equipment sends 3 groups of RS to UE, and to 1st~3 groups of RS, the network equipment sends associating obtaining information to UE and is respectively 1,0,1, and UE is only to obtaining the descending CSI of associating according to the measurement result of the 1st, 3 groups of RS.
Again for example, UE can be a plurality of subsets a plurality of RS components, each subset for example can corresponding different community, now, associating obtaining information comprises 2 bits, this associating obtaining information is to represent that this group RS does not add in the descending CSI that obtains associating at 00 o'clock, is 01,10,11 and represents that respectively this group RS adds the 1st, 2,3 subsets to obtain the descending CSI of the associating of the 1st, 2,3 subsets.For example, the network equipment sends 6 groups of RS to UE, to 1st~6 groups of RS, the network equipment sends associating obtaining information to UE and is respectively 01,00,01,10,11,11, UE to according to the measurement result of the 1st, 3 groups of RS, obtain the associating of the 1st subset descending CSI, measure the 4th group of RS and obtain the descending CSI of the 2nd subset and the descending CSI that obtains the associating of the 3rd subset according to the measurement result of the 5th, 6 groups of RS.For example, the 1st, 2,3 descending CSI difference respective cell 1~3.
Again for example, the associating obtaining information that the value that the UE reception network equipment sends to UE is 1, representing needs UE according to the measurement result of all groups of RS, to obtain the descending CSI of the associating of all groups of RS.
Optionally, before the present embodiment two steps 402, can also comprise: the power information of the different capacity that the UE reception network equipment is used when sending described many group RS power informations; In step 402, UE obtains the descending CSI of associating according to this power information and measurement result corresponding to each group RS.
For example, the network equipment sends the 1st group of RS by power P 1, by power P 2, sends the 2nd group of RS; UE receives the network equipment to the P1 of UE transmission and the information of P2, and wherein, the information of P1 and P2 can be P1 and numbering corresponding to P2, or the value of P1 and P2 etc.; After UE receives, according to P1, P2 and the 1st, 2 groups of measurement results that RS is corresponding, obtain the descending CSI of the associating of the 1st, 2 groups of RS.For example, if there are two groups of RS, UE measures respectively this two groups of SINR that RS is corresponding, the measurement result for example measuring is respectively SINR1 and SINR2, due to two groups of transmitted power differences that RS is corresponding, therefore if directly determine with these two SINR1 and SINR2 the CQI finally reporting, can be not accurate enough, for example, SINR1 is corresponding be P1 * | H| 2/ (I+N0), SINR2 is corresponding be P2 * | H| 2/ (I+N0), the mean value of SINR1 and SINR2 be (SINR1+SINR2)/2=(P1+P2)/2 * | H| 2/ (I+N0), and if according to the mean value of this SINR1 and SINR2, determine CQI, the CQI obtaining so can accurately not reflect real channel fading and disturbed condition, | H| 2/ (I+N0); Wherein, H represents down channel decline value, and I represents the interference power that descending RS is subject to, and N0 represents noise variance.And if use the mode in above-described embodiment, UE can obtain the power information that the network equipment sends these two groups of RS, and in conjunction with different power informations, obtains the descending CSI reporting, to obtain rational reported result; For example, UE obtains calculating (SINR1/P1+SINR2/P2)/2 after SINR1 and SINR2, just can obtain | H| 2/ (I+N0), the CQI obtaining according to this result just can reflect real channel fading situation.
Here, organize power information that RS is corresponding more and be not defined as the network equipment and need to UE, all send a power information for every group of RS, can organize corresponding power information by a transmitting portion RS.For example, the network equipment is identical with the power of data RE with the power that UE pre-sets the 1st group of RS, therefore just does not need to send the power information of the 1st group of RS, only need to send the power information of other group RS.
Optionally, before the present embodiment two steps 402, can also comprise: for a certain group of RS, UE receives the network equipment and to UE, is sent in the information that needs the antenna port of measurement in this group RS; While measuring described many group RS, described UE only measures the RS of the antenna port transmission that the antenna port information of this group RS is corresponding according to this antenna port information;
For example, in CoMP technology, the network equipment can send many group RS to UE, wherein, 1 group of corresponding cooperation cell of RS at least wherein, at least other 1 group of RS corresponding with service community and cooperation cell, as shown in Figure 5.Wherein, Serving cell (Ru Tu5Zhong community 1) represents the community sending control signaling to UE, the Physical Downlink Control Channel in LTE-A technology (Physical Downlink Control Channel, PDCCH) for example, a common UE only has a Serving cell being its service; Cooperation cell (Ru Tu5Zhong community 2) represents those communities to UE transmission data-signal except Serving cell; By the configuration to many groups RS like this, corresponding CSI is combined with cooperation cell in CSI and the Serving cell that just can make the network equipment obtain cooperation cell.For example, the network equipment 1 sends the 1st group of RS and the 2nd group of RS, the network equipment 2 sends the 2nd group of RS, corresponding 2 antenna ports of the 2nd group of RS that the network equipment 1 sends, the 2nd group of RS that the network equipment 2 sends be corresponding 2 antenna ports also, 2 antenna ports corresponding to the 2nd group of RS that the network equipment 1 sends are different from 2 antenna ports corresponding to the 2nd group of RS that the network equipment 2 sends, these network equipments can send data-signal to UE, now community 1 (cooperation cell) just likely sends data-signal to UE separately, also can combine with community 2 (Serving cell) to UE and send downlink data signal.In order to obtain scheduling accurately, need UE feedback: the descending CSI corresponding to cooperation cell of 1, usining while only having the network equipment 1 to send data-signal as hypothesis to UE; 2, usining the network equipment 1 and the network equipment 2 combines Serving cell and descending CSI corresponding to cooperation cell associating while sending data-signal as hypothesis to UE.Therefore, 2 network equipments can send 2 groups of RS to UE, and the 1st group of RS comprises 2 antenna ports, by the network equipment 1, to UE, sent; The 2nd group of RS comprises 4 antenna ports, by the network equipment 1 and the network equipment 2, sent to UE simultaneously, and wherein the network equipment 1 is used antenna port 0 and 1 to send RS, and the network equipment 2 is used antenna port 2 and 3 to send RS.Like this, UE measures the 1st group of RS, just can obtain the descending CSI of the network equipment 1 correspondence; Measure the 2nd group of RS, just can obtain the descending CSI that the network equipment 1 and the network equipment 2 are combined associating corresponding while sending data to UE.
In this case, also can utilize these two groups of RS to strengthen the accuracy that the CSI of community 1 is measured.For example, UE need to measure the RSRQ of the network equipment 1 correspondence, and can obtain according to the measurement result of the 1st group and the 2nd group RS the descending RSRQ of the associating of the network equipment 1 correspondence.But the 2nd group of RS only has the RS that wherein part antenna port is corresponding to be sent by the network equipment 1, therefore need to send for measuring the antenna port information of the 2nd group of RS, so that the 2nd group of RS corresponding to antenna port in the UE antenna port information that only the measurement target network equipment is corresponding to UE.
Wherein, antenna port information can comprise one or more in the information whether antenna port information of number or antenna port number information or antenna port subset information or each antenna port are used to measure.
Particularly, antenna port information comprises antenna port information of number, for example network equipment notice UE only need measure 2 a certain group of RS that antenna port is corresponding in the 2nd group of RS, UE only measure the first two antenna port in all 4 antenna ports that this group RS is corresponding (as, it is antenna port 0,1 that acquiescence is measured front 2 antenna ports); Or antenna port information comprises antenna port number information, for example, notify UE only need measure and in the 2nd group of RS, be numbered 2,3 RS corresponding to antenna port; Or, antenna port information comprises antenna port subset information, 4 antenna ports that for example the 2nd group of RS comprises are divided into 2 antenna port subsets, being numbered 0,1 antenna port is to be numbered 0 antenna port subset, being numbered 2,3 antenna port is to be numbered 1 antenna port subset, the network equipment only need will be numbered the information notice UE of 1 antenna port subset, and UE only measures in all 4 antenna ports and is numbered 2,3 antenna port; Or, antenna port information comprises whether each antenna port is used to the information of measuring, for example the 2nd group of RS comprises 4 antenna ports, the network equipment sends the information of 4 bits to UE, whether i bit indication UE measures i the RS that antenna port is corresponding, for example this information is 1100, just represents that network equipment indication UE measures the RS of the 1st, 2 antenna ports.
In addition, according to foregoing description, can find out, in the present embodiment, while obtaining the descending CSI of associating, the antenna port that RS is not corresponding on the same group can be different, and therefore, UE can measure the RS that the different antennae port in RS does not send on the same group.Or the RS that same group of different antennae port corresponding to RS sends belongs to different subsets.
In example, illustrated in the above, UE only measures in the 1st group of RS, to be numbered in 0,1 antenna port and the 2nd group of RS and is numbered 2,3 antenna port, repeats no more here.
For clearer, understand above-described embodiment, below in conjunction with accompanying drawing, introduce several application examples.
In step 402, while obtaining the descending CSI of associating according to measurement result corresponding to many groups RS, can be accomplished in several ways.Introduce several examples below.
Example one
In this example, the descending CSI that obtains associating according to measurement result corresponding to many groups RS carries out linear averaging to measurement result corresponding to many groups RS, to obtain the descending CSI of associating.
For example, when many groups RS is 2 groups, UE measures the 1st, 2 groups of measurement results that RS obtains and is respectively A1, A2, and 2 groups of measurement results corresponding to RS being carried out to linear result is (A1+A2)/2.
In the embodiment of the present invention, the measurement result of many group RS can be that many groups RS is carried out to the measurement result obtaining after single measurement, also can be after many groups RS is taken multiple measurements respectively, the measurement result that each group RS is measured for many times be carried out respectively the measurement result of respectively organizing RS obtaining after combined calculation.
Here, the 1st, 2 groups of measurement results that RS obtains of UE measurement can be that the 1st, 2 groups of RS are carried out respectively to the measurement result of single measurement; Also can be that the 1st, 2 groups of RS are taken multiple measurements respectively, and by the 1st, 2 groups of RS respectively the corresponding measurement result repeatedly measuring carry out the measurement result after combined calculation.
For example, single measurement can be method as described below: as shown in Figure 6, suppose UE on to call time be to be numbered 4 TTI, it is A1 that UE measures the 1st group of measurement result that RS obtains at the TTI that is numbered 0, at the TTI that is numbered 2, measuring the 2nd group of measurement result that RS obtains is A2, and be (A1+A2)/2 to the measurement result that A1 and A2 carry out the associating that linear averaging obtains, and according to this measurement result, obtain the descending CSI of associating, or UE obtains the descending CSI of associating according to the measurement result of the up-to-date many groups RS receiving, for example: suppose that reporting of UE is to be constantly numbered 6 TTI, the up-to-date 2 groups of RS that receive of UE are respectively the 1st group of RS receiving at the TTI that is numbered 5 and the 2nd group of RS receiving at the TTI that is numbered 2, now UE is A1 in the 1st group of measurement result that RS obtains of TTI measurement that is numbered 5, at the TTI that is numbered 2, measure the 2nd group of measurement result A2 that RS obtains, and be (A1+A2)/2 to the measurement result that A1 and A2 carry out the associating that linear averaging obtains, and according to this measurement result, obtain the descending CSI of associating.
And for example, repeatedly measuring can be method as described below: as shown in Figure 6, suppose that reporting of UE is to be constantly numbered 13 TTI, UE measures the 1st group of RS and measurement result is carried out to filtering at the TTI that is numbered 0,5,10 and obtains measurement result A1, at the TTI that is numbered 2,7,12, measure the 2nd group of RS and carry out filtering and obtain measurement result A2, and A1 and A2 are carried out to linear averaging obtain (A1+A2)/2, and according to the result of this linear averaging, obtain the descending CSI of associating.
Example two
In this example, the descending CSI that obtains associating according to measurement result corresponding to many groups RS carries out the linear averaging of different weights to measurement result corresponding to many groups RS, to obtain the descending CSI of associating, wherein respectively organizing the weights that RS is corresponding can be notified to UE by the network equipment, or be preset in the network equipment and UE, wherein, can for each, organize RS according to the different parameters of many groups RS different weights are set.Parameter herein can be one or more in the power deviation of transmitted power, RS and the transmission cycle of RS etc.The size of weights can arrange by means such as emulation and experiences, and the embodiment of the present invention does not limit the size how weights are set.
Because the parameter of RS is not different on the same group, therefore by according to not on the same group the parameter of RS for not on the same group RS different weights are set, making respectively to organize the measurement result that RS is corresponding is different to the contribution of the descending CSI of the associating finally obtaining, therefore in this example with different weights to not on the same group the measurement result of RS be weighted to obtain the descending CSI of final associating.For example, situation for 2 groups of RS, if the measurement result of 2 groups of RS that obtain by above-mentioned any method of measurement is respectively A1 and A2, the result of carrying out in the present embodiment the linear averaging of different weights is (m1 * A1+m2 * A2)/(m1+m2), wherein, m1 and m2 just represent the 1st, 2 groups of weights corresponding to RS difference, and m1 is not equal to m2.For example the power of the 1st group of RS is 2 times of power of the 2nd group of RS, m1=2, m2=1 can be set.
Preferably, the information of the value of m1 and m2 can send to UE by the network equipment, can obtain flexibility like this.The information of the value of m1 and m2 can be the numbering of the value of m1 and m2 herein, now, has pre-seted the corresponding relation of the numbering of value and the value of m1 and m2 of m1 and m2 in UE and the network equipment.Certainly can be not limited to be the numbering of value of m1 and m2 to the information of the value of m1 and m2, such as being the value etc. that sends m1 and m2.
Or, the information of the value of m1 and m2 also can be preset in the network equipment and UE by pre-seting not RS is corresponding on the same group parameter and the mapping table of weights, be stored in the network equipment and UE, when the network equipment sends RS to UE, organize corresponding parameter, UE just can obtain weights according to this parameter and the mapping table pre-seting.
For example, the network equipment and UE pre-set mapping relations as shown in table 1:
Table 1
The power of RS is with respect to the deviation of the power of data RE Weights
3dB 2
0dB 1
-3dB 1/2
Situation based on above-mentioned table 1, is 3dB (power that is the RE that RS is corresponding is 2 times of power of data RE) if the network equipment is notified the power deviation information of the 1st group of RS to UE, and UE just can know that the 1st group of weights that RS is corresponding are 2 by table 1; If it is 0dB (power that is the RE that RS is corresponding is identical with the power of data RE) that the network equipment is notified the power deviation information of the 2nd group of RS to UE, UE just can know that the 2nd group of weights that RS is corresponding are 1 by table 1.The benefit of this mode is not need to be specifically designed to the signaling of notifying these weights, can reduce signaling consumption.
Again for example, when the parameter of RS group is that the transmission of RS is during the cycle, if the transmission cycle of the 1st group of RS is 10 TTI, the transmission cycle of the 2nd group of RS is 5 TTI, because the density of the 1st group of RS of density ratio of the RS of the 2nd group is larger, reliability is just higher, and the weights of the 1st group of RS are 1/4; The weights of the 2nd group of RS are 1/2.Wherein, the corresponding relation of transmission cycle and weights can pre-set equally.
Example three
In this example, many groups RS that UE receives is many groups RS that the network equipment periodically sends to UE;
UE periodically reports the descending CSI of associating.
The descending CSI that obtains associating according to measurement result corresponding to many groups RS can be that the arbitrary group RS of UE at every turn receiving many group RS is after this group RS of a certain transmission cycle transmission, this group RS that this is received measures, and the measurement result that this is obtained with before many groups RS is carried out to the filtering result that filtering obtains and carries out filtering, thereby obtain the descending CSI of associating.Wherein, filtering factor can be preset in UE and the network equipment, also can by sending signaling to UE, notify this filtering factor of UE by the network equipment.
Concrete, the network equipment periodically sends one group of descending RS conventionally.In the prior art, the each measurement of UE can be carried out filtering to measurement result by through type (1) afterwards, thereby strengthens the precision of measuring:
M_new=(1-Filter_factor)×M_old+Filter_factor×M_mea (1)
Wherein, M_mea represents the CSI measurement result obtaining when pre-test, M_old represents the filtering result before pre-test, M_new represents the result when pre-test to carry out the new filtering result obtaining after filtering, Filter_factor represents filtering factor, normally the number of a value between 0 and 1.
After having used the embodiment of the present invention, each measure receive not on the same group after arbitrary group of RS in RS, just use measurement result, according to formula (1), obtain new filtering result, the filtering result now obtaining is for to carry out together to many groups RS the filtering result that filtering obtains.For example, the filtering result of the many groups RS obtaining in the TTI being numbered before 5 is M_old, UE receives that at the TTI that is numbered 5 the 1st group of RS is after this transmission cycle sends the 1st group of RS, by measurement, obtain measurement result M_mea1, and obtain filtering result afterwards according to M_new1=(1-Filter_factor) * M_old+Filter_factor * M_mea1; When being numbered 7 TTI, UE receives that the 2nd group of RS is after this transmission cycle sends the 2nd group of RS, by measurement, obtain M_mea2, thereby just according to M_new2=(1-Filter_factor) * M_new1+Filter_factor * M_mea2, obtain filtering result afterwards.Wherein, filtering factor can be preset in UE and the network equipment, also can by sending signaling to UE, notify this filtering factor by the network equipment.By this example, can be found out, the filtering result in this example is to carry out together filtering by organizing RS more, thereby according to the measurement result of many groups RS, obtains the descending CSI of the associating of many group RS.
Afterwards, UE can obtain the descending CSI of the associating reporting according to the filtering result of described many group RS, and for example, if the descending CSI reporting is RSRQ, M_new represents SINR, therefore just can directly report the moment that M_new is reported to the network equipment as RSRQ.Or, if the CSI reporting is CQI, just can determine the CQI reporting according to M_new, report the moment that definite CQI is reported to the network equipment.
In above-mentioned example, can also for not on the same group RS different filtering factors is set, wherein respectively organizing the filtering factor that RS is corresponding can be notified to UE by the network equipment, or filtering factor corresponding to each group RS is preset in to the network equipment and UE, wherein the corresponding different filtering factors of the different parameters of RS group.Wherein, the setting that weights used can be with reference to the above-mentioned linear averaging that carries out different weights time are set of filtering factor repeats no more herein.Use in embodiments of the present invention different filtering factors respectively to not on the same group the measurement result of RS carry out filtering, can obtain more accurate result.
For example the filtering result after being numbered 4 TTI filtering is M_old, UE is after the TTI that is numbered 5 receives the 1st group of RS, by measurement, obtain M_mea1, thereby just according to M_new1=(1-Filter_factor1) * M_old+Filter_factor1 * M_mea1, obtain filtering filtering result afterwards; After UE is being numbered the RS that 7 TTI receives the 2nd group, by measurement, obtains M_mea2, thereby just according to M_new2=(1-Filter_factor2) * M_new1+Filter_factor2 * M_mea2, obtain the filtering result after filtering.Particularly, for example the transmitted power of the 1st group of RS is higher than the transmitted power of the 2nd group of RS, Filter_factor1=1/2 is set, Filter_factor2=1/4.
About the filtering factor of different RS groups, can be notified by the network equipment, or be preset in the network equipment and UE, the similar weights embodiment above of specific embodiment, repeats no more here.
The third aspect, invent an embodiment a kind of network equipment 70 is provided, the described network equipment 70 is for carrying out the method that reports descending CSI of the above-mentioned network equipment, and the present embodiment is only briefly described the structure of this network equipment, and concrete principle can be in conjunction with referring to described in embodiment of the method.As shown in Figure 8, the described network equipment 70 comprises sending module 701 and receiver module 702.
Sending module 701, for sending many group reference signal RS to UE; And
Receiver module 702, for receiving the downlink channel condition information CSI of the associating that described UE reports to the described network equipment 70, wherein, the descending CSI of described associating is that described UE to the described described descending CSI that organizes the associating of RS obtaining according to the measurement result of described many group RS after RS measure that organizes more more.
In the embodiment of the present invention, the network equipment 70 will be organized RS more and send to UE, and receive the descending CSI of the associating that the measurement result according to many groups RS that UE reports obtains, rather than receive the descending CSI that pass through to measure one group of RS acquisition that UE reports, thus strengthened certainty of measurement.And, the embodiment of the present invention also can improve certainty of measurement in the situation that the network equipment 70 does not increase Resource Density option, for example do not need to increase the density of CSI-RS, minimum density still maintains 5 TTI once, do not need to change the configuration of prior art, therefore there is good compatibility with the design of prior art yet.
Further, described sending module 701, also for sent the information of many group RS to described UE send many group reference signal RS to UE before, so that UE receives described many group RS according to the information of described many group RS, the information of wherein said many group RS comprises one or more in the number of the antenna port that the transmission cycle of RS, RS sequence information and every group of RS comprise.
Further, described sending module 701, the power information of also using when sending described many group RS for send the described network equipment 70 to described UE, so that described UE obtains the descending CSI of described associating according to described power information and measurement result corresponding to described many group RS.
Further, described sending module 701, also for for a certain group of RS, to described UE transmitting antenna port information, wherein, described antenna port information is the information of the antenna port that need to measure RS of one group of RS in described many group RS, so that described UE measures according to described antenna port information the described RS that corresponding antenna port sends.
Further, described sending module 701, also for send the arbitrary group of associating obtaining information that RS is corresponding to described UE, wherein, whether described associating obtaining information is used to indicate: the measurement result of described arbitrary group of RS is joined in the descending CSI that obtains described associating, or whether according to the measurement result of all groups of RS, obtain the descending CSI of the associating of all groups of RS.
Further, described sending module 701 specifically for, send the described many group RS belong to the first subset, wherein, described the first subset belongs to a set;
Described sending module 701 also for, to described UE, send one or more groups RS corresponding to the second subset, described the second subset also belongs to described set;
Described receiver module 702 also for, receive the descending CSI of described the second subset that described UE reports to the described network equipment 70, wherein, if described the second subset comprises many group RS, the descending CSI of described the second subset is the descending CSI of the associating of many groups RS corresponding to described the second subset.
Further, described sending module 701, also for sending subset information to described UE or sending associating obtaining information to described UE, so that described UE is according to described subset information, or, according to described associating obtaining information, determine the subset that arbitrary group of RS belongs to,
Wherein, described subset information comprises the information of respectively organizing RS that described the first subset and described the second subset comprise; Described associating obtaining information comprises the information of the subset of described arbitrary group of RS ownership.
In the present embodiment, described descending CSI comprises RI, PMI, CQI, RSRP, RSRQ, and organizes one or more in the time of reception deviation of RS more.
In the present embodiment, the described network equipment 70 is BS, AP, RRE, RRH, RRU or via node.
In addition, the present embodiment is only described the relevant module of the embodiment of the present invention, certainly be not limited in the Module Division mode that these modules or the embodiment of the present invention provide, for example, described sending module 701 and described receiver module 702 can be same parts, as transceiver, can be also two parts.In addition, the present embodiment can also comprise other modules, for example described sending module 701 can be connected by a processing module with described receiver module 702, for the described descending associating CSI receiving according to described receiver module 702, carry out relevant treatment, or be used to indicate described sending module 701 transmission relevant informations etc.
Because the present embodiment can be carried out each step of the method that reports descending CSI of the above-mentioned network equipment, therefore, detailed content can be with reference to the description in above-mentioned two embodiments of the method, and the effect that the present embodiment can obtain also can, with reference to the description in said method embodiment, repeat no more herein.In addition, " group " in the present embodiment, " set " and " subset " also might not have division group, divide the operation of set or subset, refer to the description in above-described embodiment.
Fourth aspect, one embodiment of the invention provides a kind of subscriber equipment 80, described subscriber equipment 80 can be for carrying out the method that reports descending CSI of above-mentioned subscriber equipment 80, the present embodiment is only briefly described the structure of this subscriber equipment 80, and concrete principle can be in conjunction with referring to described in embodiment of the method.As shown in Figure 9, described subscriber equipment 80 comprises receiver module 801, acquisition module 802, and sending module 803.
Receiver module 801, the many groups reference signal RS sending for receiving the network equipment, and to the described many group RS of acquisition module 802 transmission;
Described acquisition module 802, for measuring described many group RS of described receiver module 801 transmission, obtain respectively organizing the measurement result of RS, according to the described described measurement result of respectively organizing RS, obtain the downlink channel condition information CSI of the associating of described many group RS, and to sending module 803, transmit the descending CSI of described associating; And
Described sending module 803, for reporting the described network equipment by the descending CSI of the described associating of described acquisition module 802 transmission.
In the embodiment of the present invention, that UE receives is many groups RS that the network equipment sends, and the descending CSI of the associating of obtaining according to the described measurement result of organizing RS reporting more, rather than reports the descending CSI obtaining by measuring one group of RS, thereby has strengthened certainty of measurement.And, the embodiment of the present invention also can improve certainty of measurement in the situation that the network equipment does not increase Resource Density option, for example do not need to increase the density of CSI-RS, minimum density still maintains 5 TTI once, do not need to change the configuration of prior art, therefore there is good compatibility with the design of prior art yet.
Further, described acquisition module 802 specifically for, measurement results corresponding to described many group RS are carried out to linear averaging, obtain the descending CSI of the described associating of described many group RS; Or, measurement result corresponding to described many group RS is weighted to linear averaging, obtain the descending CSI of the described associating of described many group RS.
Further, described acquisition module 802 specifically for, the weights of respectively organizing RS that receive from the described network equipment according to described receiver module 801 are weighted linear averaging to measurement result corresponding to described many group RS, wherein, described weights are that the described network equipment is to be that described many group RS arrange according to the different parameters of described many group RS, and described parameter comprises the power deviation of transmitted power, RS and one or more in the transmission cycle of RS; Or
As shown in Figure 9, described subscriber equipment 80 also comprises: memory module 802a, and for storing the different parameters of described many group RS, wherein, described parameter comprises the power deviation of transmitted power, RS and one or more in the transmission cycle of RS; Described acquisition module 802 specifically for, from described memory module 802a, obtain the different parameters of many group RS, the described different weights that arrange for each group RS according to the different parameters of described many group RS, are weighted linear averaging to described measurement results corresponding to RS of organizing more.
Further, described receiver module 801 specifically for, receive described many group RS that the described network equipment periodically sends to UE;
Described sending module 803 specifically for, the descending CSI of described associating is periodically reported to the described network equipment;
Described acquisition module 802 specifically for, according in a report cycle, described receiver module 801 receives, the measurement results of described many group RS are obtained the descending CSI of the associating of the many groups RS obtaining in described report cycle; Or obtain the descending CSI of the associating of described many group RS according to the measurement result of the described many group RS that receive before the many groups that receive RS that in described report cycle, described receiver module 801 receives and described report cycle; Or the measurement result of respectively organizing RS receiving receiving according to described receiver module 801 of the last time of report cycle described in many groups RS is obtained the descending CSI of the associating of described many group RS.
Further, described receiver module 801 specifically for, receive described many group RS that the described network equipment periodically sends to UE;
Described sending module 803 specifically for, the descending CSI of described associating is periodically reported to the described network equipment;
Described acquisition module 802 specifically for, after this group RS that one group of RS at every turn receive many group RS by described receiver module 801 sends in a report cycle, described one group of RS that this is received measures, and the measurement result of described one group of RS that this is obtained with before described many group RS are carried out to the filtering result that filtering obtains and carry out filtering, obtain the descending CSI of the associating of described many group RS.
Further, described acquisition module 802 specifically for, according to different filtering factors corresponding to RS on the same group not, the measurement result of described one group of RS that this is obtained with before described many group RS are carried out to the filtering result that filtering obtains and carry out filtering, wherein,
The described not filtering factor that RS is corresponding on the same group receives from the described network equipment by described receiver module 801, wherein, described filtering factor be the described network equipment according to the different parameters of described many group RS for not on the same group RS arrange, or,
Described subscriber equipment 80 also comprises memory module 802a, for storing the different parameters of described many group RS; The described not filtering factor that RS is corresponding is on the same group that described acquisition module 802 is that each organizes RS setting according to the different parameters of described many group RS of described memory module 802a storage,
Wherein, described parameter comprises transmitted power, the power deviation of RS, and the transmission cycle of RS.
Further, described receiver module 801, the power information of also using when sending described many group RS for receiving the described network equipment, and described power information is transferred to described acquisition module 802;
Described acquisition module 802 specifically for, according to the described measurement result of described power information and described many group RS, obtain the descending CSI of the associating of many group RS.
Further, described receiver module 801, the antenna port information also sending to described UE for receiving the described network equipment, and described antenna port information is transferred to described acquisition module 802, wherein, described antenna port information is the antenna port information that need to measure RS of a certain group of RS in described many group RS;
Described acquisition module 802 specifically for, for described a certain group of RS, according to described antenna port information, measure the RS that corresponding antenna port corresponding to described one group of RS sends;
Wherein, described antenna port information comprises one or more in the information whether antenna port information of number, antenna port number information and each antenna port are used to measure.
Further, described receiver module 801 also sent the information of many group RS for receiving the described network equipment before sending described many group RS to UE; Wherein, the information of described many group RS comprises one or more in the antenna port number that transmission cycle, the RS sequence information of RS, every group of RS comprise;
Described receiver module 801 specifically for, according to the information of described many group RS, receive described many group RS.
Further, described receiver module 801 also for, receive the associating obtaining information that the described network equipment sends to described UE, and described associating obtaining information be transferred to described acquisition module 802;
Described acquisition module 802 also for, according to described associating obtaining information, judge whether the measurement result of one group of RS to be joined in the descending CSI that obtains described associating, or judge whether to obtain according to the measurement result of all groups of RS the descending CSI of described associating.
Further, described receiver module 801 specifically for, receive the described many group RS belong to the first set; Wherein, described the first subset belongs to a set;
Described receiver module 801 also for, receive one or more groups RS of described the second subset that the described network equipment sends, and one or more groups RS of described the second subset be transferred to described acquisition module 802;
Described acquisition module 802 also for, one or more groups RS that measures described second subset of described receiver module 801 receptions obtains the measurement result of respectively organizing RS of described the second subset, and according to the measurement result of respectively organizing RS of described the second subset, obtain the descending CSI of described the second subset, and the descending CSI of described the second subset is transferred to described sending module 803; Wherein, if described the second subset comprises many group RS, the descending CSI of described the second subset is the descending CSI of associating of many groups RS of described the second subset;
Described sending module 803 also for, to the described network equipment, send the descending CSI of described second subset of described acquisition module 802 transmission.
Further, described receiver module 801, the subset information also sending to UE for receiving the described network equipment, or, receive the associating obtaining information that the described network equipment sends to described UE, and described subset information or described associating obtaining information are transferred to described acquisition module 802;
Described acquisition module 802, also for according to the described subset information of described receiver module 801 transmission, or, according to described associating obtaining information, the subset of determining arbitrary group of RS ownership, wherein, described subset information comprises the information of respectively organizing RS that described the first subset and described the second subset comprise; Described associating obtaining information comprises the information of the subset of described arbitrary group of RS ownership.
Further, described receiver module 801, the antenna port information also sending to described UE for receiving the described network equipment, wherein, described antenna port information comprises antenna port subset information;
Described acquisition module 802 specifically for, according to described antenna port information, measure the RS that the corresponding antenna port of one group of RS sends, and determine the subset that RS that described antenna port sends belongs to.
Because the present embodiment can be carried out each step of the method that reports descending CSI of above-mentioned subscriber equipment, therefore, detailed content can be with reference to the description in above-mentioned two embodiments of the method, and the effect that the present embodiment can obtain also can, with reference to the description in said method embodiment, repeat no more herein.In addition, " group " in the present embodiment, " set " and " subset " also might not have division group, divide the operation of set or subset, refer to the description in above-described embodiment.
The 5th aspect, one embodiment of the invention provides a kind of system of reporting status information of channel, described system comprises the network equipment 70 that subscriber equipment 80 that above-described embodiment provides and above-described embodiment provide, and specifically, referring to the description in above-described embodiment, repeats no more herein.Wherein, described subscriber equipment 80 can be for carrying out the method that reports descending CSI of above-mentioned subscriber equipment, and the described network equipment 70 can be for carrying out the method that reports descending CSI of the above-mentioned network equipment, and concrete principle can be in conjunction with referring to described in embodiment of the method.And the technique effect that can obtain also can be referring to described in above-described embodiment.
It should be noted that, in the embodiment of above subscriber equipment and the network equipment, the division of each functional module only illustrates, can be as required in practical application, for example the facility of the configuration requirement of corresponding hardware or the realization of software is considered, and above-mentioned functions is distributed, by different functional modules, completed, the internal structure that is about to described subscriber equipment or the network equipment is divided into different functional modules, to complete all or part of function described above.And, in practical application, corresponding functional module in above-described embodiment can be to be realized by corresponding hardware, also can be completed by the corresponding software of corresponding hardware implement, for example, the sending module of the aforesaid network equipment, can be to have to carry out the aforementioned hardware that sends many group RS to UE, transmitter for example, thus can be also to carry out general processor or other hardware devices that corresponding computer program completes aforementioned function, for another example the receiver module of the aforesaid network equipment, can be to have to carry out the aforementioned hardware of for receiving described UE, described many group RS being measured and obtained according to the measurement result of many group RS the downlink channel condition information CSI of the associating reporting to the described network equipment after the CSI of associating of many group RS, receiver for example, thereby can be also to carry out general processor or other hardware devices that corresponding computer program completes aforementioned function, antenna for example, thereby can be also to carry out general processor or other hardware devices that corresponding computer program completes aforementioned function, receiver module and the sending module of the receiver module of aforesaid subscriber equipment and sending module and the network equipment are similar, repeat no more herein, aforesaid CSI acquisition module, can be have carry out aforementioned for carrying out aforementioned described many group RS to measuring respectively described receiver module and receiving, obtain respectively organizing the measurement result of RS, and the described measurement result of respectively organizing RS obtaining according to described measurement module is obtained the hardware of the descending CSI of the associating of organizing RS more, processor for example, thus can be also to carry out general processor or other hardware devices (each embodiment that this specification provides can apply foregoing description principle) that corresponding computer program completes aforementioned function.
One of ordinary skill in the art will appreciate that all or part of step in the whole bag of tricks of above-described embodiment is to come the hardware that instruction is relevant to complete by program, this program can be stored in a computer-readable recording medium, storage medium can comprise: read-only memory (ROM, Read Only Memory), random access memory (RAM, Random Access Memory), disk or CD etc.
The reporting status information of channel method, subscriber equipment and the network equipment that above the embodiment of the present invention are provided are described in detail, applied specific case herein principle of the present invention and execution mode are set forth, the explanation of above embodiment is just for helping to understand method of the present invention and core concept thereof; , for one of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention meanwhile.

Claims (44)

1. a method for reporting status information of channel, is characterized in that, described method comprises:
User equipment (UE) receives many groups reference signal RS that the network equipment sends;
Measure the measurement result that described many group RS obtain respectively organizing RS, according to the described measurement result of described many group RS, obtain the downlink channel condition information CSI of the associating of described many group RS; And
The descending CSI of described associating is reported to the described network equipment.
2. the method for claim 1, is characterized in that, the described described measurement result according to described many group RS is obtained the descending CSI of the associating of described many group RS, comprising:
Measurement result corresponding to described many group RS carried out to linear averaging, obtain the descending CSI of the described associating of described many group RS; Or
Measurement result corresponding to described many group RS is weighted to linear averaging, obtains the descending CSI of the described associating of described many group RS.
3. method as claimed in claim 2, is characterized in that, described measurement results corresponding to described many group RS are weighted in linear averaging,
Described weights corresponding to RS of organizing are that described UE is that each organizes RS setting according to the different parameters of described many group RS more; Or,
Weights corresponding to described many group RS receive from the described network equipment by signaling, and wherein, weights corresponding to described many group RS are that the described network equipment is that described many group RS arrange according to the different parameters of described many group RS,
Wherein, described parameter comprises the power deviation of transmitted power, RS and one or more in the transmission cycle of RS.
4. method as claimed any one in claims 1 to 3, is characterized in that,
Described UE receives many groups RS that the described network equipment sends, and comprising: described UE receives described many group RS that the described network equipment periodically sends to UE;
The described descending CSI by described associating reports the described network equipment, comprising: described UE periodically reports the described network equipment by the descending CSI of described associating;
The described described measurement result according to described many group RS is obtained the descending CSI of the associating of described many group RS, comprising: described UE obtains the descending CSI of the associating of the described many group RS that obtain in described report cycle according to the measurement result of the described many group RS that receive in a report cycle; Or described UE obtains the descending CSI of the associating of described many group RS according to the measurement result of the described many group RS that receive before the many groups RS receiving in described report cycle and described report cycle; Or described UE obtains the descending CSI of the associating of described many group RS according to the measurement result of respectively organizing RS that the last time of report cycle described in many group RS receives.
5. method as claimed any one in claims 1 to 3, is characterized in that,
Described UE receives many groups RS that the described network equipment sends, and comprising: described UE receives described many group RS that the described network equipment periodically sends to UE;
The described descending CSI by described associating reports the described network equipment, comprising: described UE periodically reports the described network equipment by the descending CSI of described associating;
The described described measurement result according to described many group RS is obtained the descending CSI of the associating of described many group RS, comprise: one group of RS that a report cycle inherence is once received measures, and the measurement result of described one group of RS that this is obtained carries out filtering with the filtering result of the last described many group RS that obtain, obtain the descending CSI of the associating of described many group RS.
6. method as claimed in claim 5, is characterized in that,
The measurement result of described described one group of RS that this is obtained is carried out in filtering with the filtering result of the last described many group RS that obtain, filtering factor corresponding to RS on the same group not, wherein,
The described not filtering factor that RS is corresponding is on the same group that described UE is that each organizes RS setting according to the different parameters of described many group RS; Or,
The described not filtering factor that RS is corresponding is on the same group that described UE receives from the described network equipment, and wherein, the described network equipment is that described many group RS arrange according to the different parameters of described many group RS,
Wherein, described parameter comprises transmitted power, the power deviation of RS, and the transmission cycle of RS.
7. the method as described in any one in claim 1 to 6, is characterized in that, before measuring described many group RS, described method also comprises: described UE receives the power information that the described network equipment is used when sending described many group RS;
The described described measurement result according to described many group RS is obtained the descending CSI of the associating of described many group RS, comprising: according to the described measurement result of described power information and described many group RS, obtain the descending CSI of the associating of many group RS.
8. the method as described in any one in claim 1 to 7, it is characterized in that, before measuring described many group RS, described method also comprises: described UE receives the antenna port information that the described network equipment sends to described UE, wherein, described antenna port information is the information of the antenna port of the RS that in described many group RS, a certain group of RS need to measure;
For described a certain group of RS, in the described many group RS of described measurement, described UE measures according to described antenna port information the RS that corresponding antenna port corresponding to described a certain group of RS sends,
Wherein, described antenna port information comprises one or more in the information whether antenna port information of number, antenna port number information and each antenna port are used to measure.
9. the method as described in any one in claim 1 to 8, is characterized in that, before described UE receives many groups RS of network equipment transmission, described method also comprises: described UE receives the described network equipment to the information of many groups RS of described UE transmission; Wherein, the information of described many group RS comprises one or more in the number of the transmission cycle, RS sequence information of RS and antenna port corresponding to every group of RS;
Described UE receives many groups RS that the network equipment sends, and comprising: described UE receives described many group RS according to the information of described many group RS.
10. the method as described in any one in claim 1 or 9, is characterized in that, described many group RS are the different RS with different attribute; Many groups RS that described many group RS are identical category or different classes of many groups RS, wherein,
Described attribute comprises: the transmission cycle of RS, the time migration in the same transmission cycle, and one or more in Resource Unit RE corresponding to RS.
11. methods as claimed in claim 10, is characterized in that, described classification comprises public reference signal CRS and CSI-RS.
12. methods as described in any one in claim 1 to 11, is characterized in that, the described described measurement results according to described many group RS are obtained before the descending CSI of associating of many group RS, and described method also comprises:
Described UE receives the associating obtaining information that the described network equipment sends to described UE, and according to described associating obtaining information, judge whether the measurement result of one group of RS to be joined in the descending CSI that obtains described associating, or judge whether to obtain according to the measurement result of all groups of RS the descending CSI of described associating.
13. methods as described in any one in claim 1 to 11, is characterized in that, described many group RS belong to the first subset, and described the first subset belongs to a set, and described set also comprises the second subset;
Described method also comprises:
Described UE receives one or more groups RS of described second subset of described network equipment transmission;
One or more groups RS that described UE measures described the second subset obtains the measurement result of respectively organizing RS of described the second subset, and according to the measurement result of respectively organizing RS of described the second subset, obtains the descending CSI of described the second subset; Wherein, if described the second subset comprises many group RS, the descending CSI of described the second subset is the descending CSI of associating of many groups RS of described the second subset; And
The descending CSI of described the second subset reporting to the described network equipment.
14. methods as claimed in claim 13, it is characterized in that, the described described measurement result according to described many group RS is obtained before the descending CSI of the associating of organizing RS more, and the described measurement result of respectively organizing RS according to described the second subset obtains before the descending CSI of described the second subset, described method also comprises:
Described UE receives the subset information that the described network equipment sends to UE, or described UE receives the associating obtaining information that the described network equipment sends to described UE; And
According to described subset information, or, according to described associating obtaining information, determine the subset of arbitrary group of RS ownership,
Wherein, described subset information comprises the information of respectively organizing RS that described the first subset and described the second subset comprise; Described associating obtaining information comprises the information of the subset of described arbitrary group of RS ownership.
15. methods as described in claim 13 or 14, it is characterized in that, before measuring described many group RS of described the first subset, and before measuring one or more groups RS of described the second subset, described method also comprises: described UE receives the antenna port information that the described network equipment sends to described UE; Described antenna port information comprises antenna port subset information;
Measure described many group RS of described the first subset, and one or more groups RS that measures described the second subset, comprise: described UE measures according to described antenna port subset information the RS that the corresponding antenna port of one group of RS sends, and determine the subset that RS that described antenna port sends belongs to.
The method of 16. 1 kinds of reporting status information of channel, is characterized in that, described method comprises:
The network equipment sends many group reference signal RS to user equipment (UE); And
Receive the downlink channel condition information CSI of the associating that described UE reports to the described network equipment, wherein, the descending CSI of described associating is that described UE to the described described descending CSI that organizes the associating of RS obtaining according to the measurement result of described many group RS after RS measure that organizes more more.
17. methods as claimed in claim 16, is characterized in that, described many group RS are the different RS with different attribute, many groups RS that described many group RS are identical category or different classes of many groups RS, wherein,
Described attribute comprises: the transmission cycle of RS, the time migration in the same transmission cycle, and one or more in Resource Unit RE corresponding to RS.
18. methods as claimed in claim 17, is characterized in that, described classification comprises public reference signal CRS and CSI-RS.
19. methods as described in claim 16 or 17 or 18, is characterized in that, before the described network equipment sends many group reference signal RS to UE, described method also comprises:
The described network equipment sends the information of described many group RS to described UE, so that described UE receives described many group RS according to the information of described many group RS, the information of wherein said many group RS comprises one or more in the number of the transmission cycle of RS, RS sequence information and antenna port corresponding to every group of RS.
20. methods as described in any one in claim 16 to 19, it is characterized in that, before receiving the descending CSI of the associating that described UE reports to the described network equipment, described method also comprises: the described network equipment sends to described UE the power information that the described network equipment is used when sending described many group RS, so that described UE obtains the descending CSI of described associating according to described power information and measurement result corresponding to described many group RS.
21. methods as described in any one in claim 16 to 20, it is characterized in that, before receiving the descending CSI of the associating that described UE reports to the described network equipment, described method also comprises: the described network equipment is to described UE transmitting antenna port information, wherein, described antenna port information is the antenna port information that need to measure RS of one group of RS in described many group RS, so that described UE measures according to described antenna port information the described RS that corresponding antenna port sends.
22. methods as described in any one in claim 16 to 21, is characterized in that, before the described network equipment sends described many group RS of described the first subset to UE, described method also comprises:
The described network equipment sends associating obtaining information to described UE, wherein, whether described associating obtaining information is used to indicate: the measurement result of one group of RS is joined in the descending CSI that obtains associating, or whether according to the measurement result of all groups of RS, obtain the descending CSI of the associating of all groups of RS.
23. methods as described in any one in claim 16 to 21, is characterized in that,
Described many group RS belong to the first subset, and described the first subset belongs to a set, and described set also comprises the second subset;
Described method also comprises:
The described network equipment sends one or more groups RS of the second subset to described UE;
Receive the descending CSI of described the second subset that described UE reports to the described network equipment, wherein, if described the second subset comprises many group RS, the descending CSI of described the second subset is the descending CSI of the associating of many groups RS corresponding to described the second subset.
24. methods as claimed in claim 22, it is characterized in that, before the descending CSI of the associating that the described UE of described reception reports to the described network equipment, and before the descending CSI of described the second subset of reporting to the described network equipment of the described UE of described reception, described method also comprises:
The subset information that the described network equipment sends to described UE, or the described network equipment sends associating obtaining information to described UE, so that described UE determines the subset of arbitrary group of RS ownership according to described subset information or described associating obtaining information, wherein, described subset information comprises the information of respectively organizing RS that described the first subset and described the second subset comprise; Described associating obtaining information comprises the information of the subset of described arbitrary group of RS ownership.
25. 1 kinds of subscriber equipmenies, is characterized in that, described subscriber equipment comprises:
Receiver module, the many groups reference signal RS sending for receiving the network equipment, and to the described many group RS of acquisition module transmission;
Described acquisition module, for measuring described many group RS of described receiver module transmission, obtain respectively organizing the measurement result of RS, according to the described described measurement result of respectively organizing RS, obtain the downlink channel condition information CSI of the associating of described many group RS, and to sending module, transmit the descending CSI of described associating; And
Described sending module, for reporting the described network equipment by the descending CSI of the described associating of described acquisition module transmission.
26. subscriber equipmenies as claimed in claim 25, is characterized in that,
Described acquisition module specifically for, measurement results corresponding to described many group RS are carried out to linear averaging, obtain the descending CSI of the described associating of described many group RS; Or, measurement result corresponding to described many group RS is weighted to linear averaging, obtain the descending CSI of the described associating of described many group RS.
27. subscriber equipmenies as claimed in claim 26, is characterized in that,
Described acquisition module specifically for, the weights of respectively organizing RS that receive from the described network equipment according to described receiver module are weighted linear averaging to measurement result corresponding to described many group RS, wherein, described weights are the described network equipment is that described many group RS arrange according to the different parameters of described many group RS, and described parameter comprises the power deviation of transmitted power, RS and one or more in the transmission cycle of RS; Or
Described subscriber equipment also comprises: memory module, and for storing the different parameters of described many group RS, wherein, described parameter comprises the power deviation of transmitted power, RS and one or more in the transmission cycle of RS; Described acquisition module specifically for, from described memory module, obtain the different parameters of many group RS, the described different weights that arrange for each group RS according to the different parameters of described many group RS, are weighted linear averaging to described measurement results corresponding to RS of organizing more.
28. subscriber equipmenies as described in any one in claim 25 to 27, is characterized in that,
Described receiver module specifically for, receive described many group RS that the described network equipment periodically sends to UE;
Described sending module specifically for, the descending CSI of described associating is periodically reported to the described network equipment;
Described acquisition module specifically for, according in a report cycle, described receiver module receives, the measurement results of described many group RS are obtained the descending CSI of the associating of the many groups RS obtaining in described report cycle; Or the measurement result of the described many group RS that receive before the described many group RS that receive that receive according to described receiver module in described report cycle and described report cycle is obtained the descending CSI of the associating of described many group RS; Or the measurement result of respectively organizing RS receiving receiving according to the described receiver module of the last time of report cycle described in many groups RS is obtained the descending CSI of the associating of described many group RS.
29. subscriber equipmenies as described in any one in claim 25 to 28, is characterized in that,
Described receiver module specifically for, receive described many group RS that the described network equipment periodically sends to UE;
Described sending module specifically for, the descending CSI of described associating is periodically reported to the described network equipment;
Described acquisition module specifically for, one group of RS that a report cycle inherence is once received measures, and the measurement result of described one group of RS that this is obtained carries out filtering with the filtering result of the last described many group RS that obtain, obtain the descending CSI of the associating of described many group RS.
30. subscriber equipmenies as claimed in claim 29, is characterized in that,
Described acquisition module specifically for, according to different filtering factors corresponding to RS on the same group not, the measurement result of described one group of RS that this is obtained is carried out filtering with the filtering result of the last described many group RS that obtain, wherein,
The described not filtering factor that RS is corresponding on the same group receives from the described network equipment by described receiver module, wherein, described filtering factor be the described network equipment according to the different parameters of described many group RS for not on the same group RS arrange, or,
Described subscriber equipment also comprises memory module, for storing the different parameters of described many group RS; The described not filtering factor that RS is corresponding is on the same group that described acquisition module is that each organizes RS setting according to the different parameters of described many group RS of described memory module storage,
Wherein, described parameter comprises transmitted power, the power deviation of RS, and the transmission cycle of RS.
31. subscriber equipmenies as described in any one in claim 25 to 30, is characterized in that,
Described receiver module, the power information of also using when sending described many group RS for receiving the described network equipment, and described power information is transferred to described acquisition module;
Described acquisition module specifically for, according to the described measurement result of described power information and described many group RS, obtain the descending CSI of the associating of many group RS.
32. subscriber equipmenies as described in any one in claim 25 to 31, is characterized in that,
Described receiver module, the antenna port information also sending to described UE for receiving the described network equipment, and described antenna port information is transferred to described acquisition module, wherein, described antenna port information is the information of the antenna port of the RS of the needs measurement of a certain group of RS in described many group RS;
Described acquisition module specifically for, for described a certain group of RS, according to described antenna port information, measure the RS that corresponding antenna port corresponding to described one group of RS sends;
Wherein, described antenna port information comprises one or more in the information whether antenna port information of number, antenna port number information and each antenna port are used to measure.
33. subscriber equipmenies as described in any one in claim 25 to 32, is characterized in that,
Described receiver module also sent the information of many group RS for receiving the described network equipment before sending described many group RS to UE; Wherein, the information of described many group RS comprises one or more in the antenna port number that transmission cycle, the RS sequence information of RS, every group of RS comprise;
Described receiver module specifically for, according to the information of described many group RS, receive described many group RS.
34. subscriber equipmenies as described in any one in claim 25 to 33, is characterized in that,
Described receiver module also for, receive the associating obtaining information that the described network equipment sends to described UE, and described associating obtaining information be transferred to described acquisition module;
Described acquisition module also for, according to described associating obtaining information, judge whether the measurement result of one group of RS to be joined in the descending CSI that obtains described associating, or judge whether to obtain according to the measurement result of all groups of RS the descending CSI of described associating.
35. subscriber equipmenies as described in any one in claim 25 to 33, is characterized in that,
Described receiver module specifically for, receive the described many group RS belong to the first set; Wherein, described the first subset belongs to a set;
Described receiver module also for, receive one or more groups RS of described the second subset that the described network equipment sends, and one or more groups RS of described the second subset be transferred to described acquisition module;
Described acquisition module also for, one or more groups RS that measures described second subset of described receiver module reception obtains the measurement result of respectively organizing RS of described the second subset, and according to the measurement result of respectively organizing RS of described the second subset, obtain the descending CSI of described the second subset, and the descending CSI of described the second subset is transferred to described sending module; Wherein, if described the second subset comprises many group RS, the descending CSI of described the second subset is the descending CSI of associating of many groups RS of described the second subset;
Described sending module also for, to the described network equipment, send the descending CSI of described second subset of described acquisition module transmission.
36. subscriber equipmenies as claimed in claim 35, is characterized in that,
Described receiver module, the subset information also sending to UE for receiving the described network equipment, or, receive the associating obtaining information that the described network equipment sends to described UE, and described subset information or described associating obtaining information are transferred to described acquisition module;
Described acquisition module, also for according to the described subset information of described receiver module transmission, or, according to described associating obtaining information, the subset of determining arbitrary group of RS ownership, wherein, described subset information comprises the information of respectively organizing RS that described the first subset and described the second subset comprise; Described associating obtaining information comprises the information of the subset of described arbitrary group of RS ownership.
37. subscriber equipmenies as described in claim 35 or 36, is characterized in that,
Described receiver module, the antenna port information also sending to described UE for receiving the described network equipment, wherein, described antenna port information comprises antenna port subset information;
Described acquisition module specifically for, according to described antenna port information, measure the RS that the corresponding antenna port of one group of RS sends, and determine the subset that RS that described antenna port sends belongs to.
38. 1 kinds of network equipments, is characterized in that, the described network equipment comprises:
Sending module, for sending many group reference signal RS to user equipment (UE); And
Receiver module, for receiving the downlink channel condition information CSI of the associating that described UE reports to the described network equipment, wherein, the descending CSI of described associating is that described UE to the described described descending CSI that organizes the associating of RS obtaining according to the measurement result of described many group RS after RS measure that organizes more more.
39. network equipments as claimed in claim 38, is characterized in that,
Described sending module, also for sent the information of many group RS to described UE send many group reference signal RS to UE before, so that UE receives described many group RS according to the information of described many group RS, the information of wherein said many group RS comprises one or more in the number of the antenna port that the transmission cycle of RS, RS sequence information and every group of RS comprise.
40. network equipments as described in claim 38 or 39, is characterized in that,
Described sending module, the power information of also using when sending described many group RS for send the described network equipment to described UE, so that described UE obtains the descending CSI of described associating according to described power information and measurement result corresponding to described many group RS.
41. network equipments as described in any one in claim 38 to 40, it is characterized in that, described sending module, also for to described UE transmitting antenna port information, wherein, described antenna port information is the antenna port information that need to measure RS of one group of RS in described many group RS, so that described UE measures according to described antenna port information the described RS that corresponding antenna port sends.
42. network equipments as described in any one in claim 38 to 41, is characterized in that,
Described sending module, also for send the arbitrary group of associating obtaining information that RS is corresponding to described UE, wherein, whether described associating obtaining information is used to indicate: the measurement result of described arbitrary group of RS is joined in the descending CSI that obtains described associating, or whether according to the measurement result of all groups of RS, obtain the descending CSI of the associating of all groups of RS.
43. network equipments as described in any one in claim 38 to 41, is characterized in that,
Described sending module specifically for, send the described many group RS belong to the first subset, wherein, described the first subset belongs to a set;
Described sending module also for, to described UE, send one or more groups RS corresponding to the second subset, described the second subset also belongs to described set;
Described receiver module also for, receive the descending CSI of described the second subset that described UE reports to the described network equipment, wherein, if described the second subset comprises many group RS, the descending CSI of described the second subset is the descending CSI of the associating of many groups RS corresponding to described the second subset.
44. network equipments as claimed in claim 42, is characterized in that,
Described sending module, also for send subset information or associating obtaining information to described UE, so that described UE determines the subset of arbitrary group of RS ownership according to described subset information or described associating obtaining information, wherein, described subset information comprises the information of respectively organizing RS that described the first subset and described the second subset comprise; Described associating obtaining information comprises the information of the subset of described arbitrary group of RS ownership.
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