CN102348233A - Coordinated multi-point (COMP) measurement set notification method and device - Google Patents
Coordinated multi-point (COMP) measurement set notification method and device Download PDFInfo
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- CN102348233A CN102348233A CN2010102443576A CN201010244357A CN102348233A CN 102348233 A CN102348233 A CN 102348233A CN 2010102443576 A CN2010102443576 A CN 2010102443576A CN 201010244357 A CN201010244357 A CN 201010244357A CN 102348233 A CN102348233 A CN 102348233A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J11/00—Orthogonal multiplex systems, e.g. using WALSH codes
- H04J11/0023—Interference mitigation or co-ordination
- H04J11/005—Interference mitigation or co-ordination of intercell interference
- H04J11/0053—Interference mitigation or co-ordination of intercell interference using co-ordinated multipoint transmission/reception
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Abstract
The invention discloses a coordinated multi-point (COMP) measurement set notification method and a COMP measurement set notification device. In the method and the device, a coordinated multi-point measurement set to be bed back by user equipment can be determined, and a measurement set indicator can be transmitted to the user equipment according to the determined coordinated multi-point measurement set. By the method and the device, the measurement set for feeding coordinated multi-point cell channel information back can be successfully notified to the user equipment.
Description
Technical field
The present invention relates to the communications field, be specifically related to a kind of multipoint cooperative (COMP) measuring assembly Notification Method and device.
Background technology
In Long Term Evolution AS (Long term evolution advanced system, LTE-Advanced or LIE-A),, COMP technology and many antennas enhancement techniques have been adopted in order to improve the average availability of frequency spectrum in sub-district and the cell edge availability of frequency spectrum.The COMP technology is divided into collaborative beam forming (CB) and unites transmission (JT) technology, can improve the service quality of the average spectral efficiency (ase) and the Cell Edge User of sub-district to a great extent.Particularly the JT technology can make the relatively poor service quality of edge cell channel quality be guaranteed to a great extent.In the COMP technology, no matter be the channel information that coordinated scheduling (CS)/CB or JT need feed back a plurality of COMP sub-district; But subscriber equipment (UE) can only be known the physical I D of Serving cell at present, and can't know the information that is used to feed back a plurality of COMP cell channel information, thereby can't effectively feed back the channel information of COMP sub-district.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of COMP measuring assembly Notification Method and device, successfully to notify UE to be used to feed back the measuring assembly of a plurality of COMP cell channel information.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind of multipoint cooperative measuring assembly Notification Method, this method comprises:
Confirm the multipoint cooperative measuring assembly that UE need feed back, send the measuring assembly indication to UE according to fixed multipoint cooperative measuring assembly.
The process of confirming said measuring assembly comprises:
In list of neighbor cells, choose measuring assembly; Perhaps,
In with the frequency list of neighbor cells, choose measuring assembly; Perhaps,
Measuring assembly is perhaps chosen in 8 sub-districts that Reference Signal Received Power is the strongest in 8 sub-districts in the last feedback reference signal of UE received power.
The method of said transmission measuring assembly indication is:
Send the measuring assembly indication through high-level signaling; This indicating mode comprises: the radioResourceConfigCommon in system information block (SIB) 2 adds new information element (IE) item; Or the new IE item of the antennaInfoCommon of the radioResourceConfigCommon in SIB2 adding, or in the Radio Resource control information, add new IE item; Use above-mentioned IE item and send the measuring assembly indication;
Perhaps, send the measuring assembly indication through the content beyond the high-level signaling; This indicating mode comprises that the CRC bit to the Cyclic Redundancy Check bit of the Downlink Control Information in the Physical Downlink Control Channel or Physical Downlink Shared Channel (PDSCH) carries out scrambling.
When sending the indication of said measuring assembly, be used to indicate the mode of measuring assembly to be:
(bitmap) indicates the sub-district that needs feedback channel information with bitmap; Perhaps,
Index of reference number tabulation indicates the sub-district that needs feedback channel information; Perhaps,
Physical I D tabulation with the sub-district indicates the sub-district that needs feedback channel information.
This method further comprises:
Indication detects the channel information of corresponding multipoint cooperative sub-district to UE according to the measuring assembly received, and the cell channel information that arrives of detection feedback.
A kind of multipoint cooperative measuring assembly notifying device, this device comprise that measuring assembly chooses unit, measuring assembly notification unit; Wherein,
Said measuring assembly is chosen the unit, is used for the multipoint cooperative measuring assembly that definite UE need feed back, and fixed measuring assembly is notified to the measuring assembly notification unit;
Said measuring assembly notification unit is used for sending the measuring assembly indication according to the measuring assembly of receiving to UE.
When confirming measuring assembly, said measuring assembly is chosen the unit and is used for:
In list of neighbor cells, choose measuring assembly; Perhaps,
In with the frequency list of neighbor cells, choose measuring assembly; Perhaps,
Measuring assembly is perhaps chosen in 8 sub-districts that Reference Signal Received Power is the strongest in 8 sub-districts in the last feedback reference signal of UE received power.
When sending the measuring assembly indication, said measuring assembly notification unit is used for:
Send the measuring assembly indication through high-level signaling; This indicating mode comprises: the radioResourceConfigCommon in SIB2 adds new IE item; Or the new IE item of the antennaInfoCommon of the radioResourceConfigCommon in SIB2 adding, or in the Radio Resource control information, add new IE item; Use above-mentioned IE item and send the measuring assembly indication;
Perhaps, send the measuring assembly indication through the content beyond the high-level signaling; This indicating mode appearance comprises carries out scrambling to the CRC bit of the Downlink Control Information of physical down channel or the CRC bit of PDSCH.
In the process of sending said measuring assembly indication, when the mode of indication measurement set, said measuring assembly notification unit is used for:
Indicate the sub-district that needs feedback channel information with bitmap; Perhaps,
Index of reference number tabulation indicates the sub-district that needs feedback channel information; Perhaps,
Physical I D tabulation with the sub-district indicates the sub-district that needs feedback channel information.
Said UE is further used for:
Indication detects the channel information of corresponding multipoint cooperative sub-district according to the measuring assembly received, and the cell channel information that arrives of detection feedback.
COMP measuring assembly Notification Method of the present invention and device can successfully notify UE to be used to feed back the measuring assembly of a plurality of COMP cell channel information.
Description of drawings
Fig. 1 is the COMP measuring assembly notice flow chart of the embodiment of the invention;
Fig. 2 is a COMP measuring assembly notice general flow chart of the present invention;
Fig. 3 is the COMP measuring assembly notifying device figure of the embodiment of the invention.
Embodiment
In general, can be in high-level signaling increase information be used for the measuring assembly of semi-static notice UE, the relevant information of perhaps using measuring assembly is carried out scrambling to the CRC bit of Physical Downlink Control Channel (PDCCH), thereby dynamically notifies the UE measuring assembly.Particularly, because UE will feed back the channel information of all sub-districts in the COMP measuring assembly, so base station (eNB) need give UE with the range notification of COMP measuring assembly.
Owing to the list of neighbor cells of semi-static configuration is all arranged, in eNB and among the UE so eNB can consider in list of neighbor cells, to choose measuring assembly.In LTE R8/R9; The number of cells that faces maximum in the list of neighbor cells that allows is 32; At this moment can adopt high-level signaling to indicate and notify the channel information which sub-district is arranged in the UE list of neighbor cells to need feedback; Above-mentioned high-level signaling can be placed in Radio Resource control (RRC) information and transmit, and the method for transmission can be the bitmap mode, or directly feeds back a plurality of pairing call numbers in sub-district of facing.Because list of neighbor cells has 1-32 sub-district, the physical I D of the corresponding unique sub-district of each call number just can know the physical I D of respective cell so UE only need know call number.The bitmap mode is also corresponding with call number usually, and the sequence of 32bit is that 0 expression does not need feedback altogether, is that 1 expression needs feedback; Certainly, on the contrary also set up.In addition, also can directly feed back the physical I D of sub-district in each measuring assembly.
Have, because same frequency (intra-Frequency) list of neighbor cells of semi-static configuration is all arranged in eNB and among the UE, eNB also can consider in the frequency list of neighbor cells, choosing measuring assembly again.In LTER8/R9; To face number of cells be 16 to maximum same frequency in the same frequency list of neighbor cells that allows; At this moment can adopt high-level signaling to indicate and notify the channel information which sub-district is arranged in the UE list of neighbor cells to need feedback; Above-mentioned high-level signaling can be placed in the Radio Resource control information and transmit, and the method for transmission can be divided into the bitmap mode, or directly feeds back a plurality of with frequently facing the pairing call number in sub-district.Because with the frequency list of neighbor cells 1-16 sub-district arranged, each call number is the physical I D of corresponding unique sub-district all, just can know the physical I D of respective cell so UE only need know call number.The bitmap mode is also corresponding with call number usually, and the sequence of 16bit is that 0 expression does not need feedback altogether, is that 1 expression needs feedback; Certainly, on the contrary also set up.In addition, also can directly feed back the physical I D of sub-district in each measuring assembly.
In addition, because the maximum feedback that allows 8 sub-districts of the Reference Signal Received Power (RSRP) of UE measurement feedback report, so also can consider perhaps to choose measuring assembly in 8 sub-districts that RSRP is the strongest in 8 sub-districts of the last feedback of UE RSRP.The sub-district of the above-mentioned RSRP of relating to is that UE and eNB are known; At this moment can adopt high-level signaling to indicate and notify the channel information which sub-district is arranged in the UE list of neighbor cells to need feedback; Above-mentioned high-level signaling can be placed in the Radio Resource control information and transmit, and the method for transmission can also can or directly be fed back sub-district physical I D for bitmap mode, index feedback.At this moment the bit number that feeds back bitmap has only 8, is that 0 expression does not need feedback, is that 1 expression needs feedback; Certainly, on the contrary also set up.
In practical application, can also be through use the measuring assembly information mode that scrambling is carried out in control informations such as (DCI) to Downlink Control Information, the cell channel information of notifying UE to feed back recessively.For example: when when facing the cell selecting measuring assembly, because bitmap has 32, so the CRC bit that divides 16 bits of each section after two sections can be used for scrambling DCI.When from when choosing measuring assembly the list of neighbor cells frequently, because bitmap has 16, so can directly be used for the CRC bit of scrambling DCI.When from 8 sub-districts of nearest feedback, choosing measuring assembly, can 8 bit informations of bitmap be repeated the back and produce 16 bit informations and be used for the CRC bit of scrambling DCI.
UE just can carry out the feedback of a plurality of cell channel information in a certain order one by one after receiving the measuring assembly indication.For example can be according to the order of bitmap (otherwise or), perhaps index order (perhaps from small to large) from big to small, perhaps physical I D order (perhaps from small to large) from big to small.Perhaps eNB and UE adopt fixing feedback to feed back in proper order; Perhaps adjust the feedback order of each sub-district through modes such as dynamic indication, semi-static indications.UE just can feed back the channel information of each sub-district in order on ensuing one or several subframe after knowing the feedback order.
It is thus clear that above-mentioned operation thinking can be represented as shown in Figure 1.Referring to Fig. 1, Fig. 1 is the COMP measuring assembly notice flow chart of the embodiment of the invention, and this flow process may further comprise the steps:
Step 101: confirm the multipoint cooperative measuring assembly that UE need feed back.
Particularly, the source of measuring assembly can be for list of neighbor cells, with list of neighbor cells or RSRP measure feedback report frequently.
Step 102: under the situation of having confirmed measuring assembly, confirm and to send the measuring assembly indication to UE.
Particularly, the mode of transmission measuring assembly indication has multiple, as: send through high-level signaling, perhaps through the transmission of the content beyond the high-level signaling.When sending the measuring assembly indication, get into step 103 through high-level signaling; When sending the measuring assembly indication, get into step 104 through the content beyond the high-level signaling.
Step 103: send the measuring assembly indication to UE through high-level signaling.
Particularly, can pass through high-level signaling, use bitmap mode, call number tabulation mode or physical I D tabulation mode and send the measuring assembly indication to UE; Afterwards, get into step 105.
Step 104: the mode through the CRC of the control information of down control channel being carried out beyond the scrambling contour level signaling is sent the measuring assembly indication to UE.
Indication detects the channel information of corresponding multipoint cooperative sub-district to step 105:UE according to the measuring assembly received, and the cell channel information that arrives of detection feedback.
Above-mentioned flow process can develop out multiple specific embodiment, is that the present invention will be described for example below with the specific embodiment.
Embodiment one:
Suppose that one has the list of neighbor cells of 32 sub-districts as shown in table 1:
Table 1
Wherein the span of ID1 to ID32 is 0～504, representes the physical I D of each sub-district respectively, and IDi ≠ IDj is arranged, 1≤i＜j≤32.
Because eNB whenever after a while will be through the possible list of neighbor cells configuration change of high-level signaling notice UE; So eNB stores identical list of neighbor cells with UE in a period of time; ENB can consider in list of neighbor cells, to choose measuring assembly, and above-mentioned high-level signaling can be placed in the Radio Resource control information and transmit.The method of transmission can be the method for bitmap; Shown in list of neighbor cells; Each list of neighbor cells all comprises the ID according to certain tactic 32 sub-districts, so can be used for indicating the sub-district in the measuring assembly through in CQI-ReportConfig, adding certain information.
Above-mentioned CQI-ReportConfig is an IE item in the Radio Resource control information.In fact, also can in other content of Radio Resource control information, add certain information and be used for indicating the sub-district in the measuring assembly, only be that example is described below with CQI-ReportConfig.
Adopt bitmap mode can for:
| 0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 1 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Just can learn the channel information of which sub-district in the concrete feedback list of neighbor cells by 32 above-mentioned Bit Strings.Needing the bitmap value of the sub-district of feedback is 0 or 1, and that need not feed back is then opposite.Can learn by the corresponding list of neighbor cells of top Bit String, need in the feedback list of neighbor cells the 2nd, 8,10,12, the channel information of 14,16 sub-districts (pairing bitmap value is under 1 the situation when requiring to feed back).UE is after receiving the measuring assembly indication; Just can learn the physical I D of these sub-districts through list of neighbor cells; Further the message such as pattern indication of coupling system frame number, CSI-RS just can be learnt the pattern of the CSI-RS of different measuring sub-district; Thereby channel measurement is carried out in a plurality of sub-districts, just can carry out the feedback of a plurality of cell channel information then in a certain order one by one.For example can be according to the order of bitmap (otherwise or), perhaps eNB and UE adopt fixing feedback to feed back in proper order, perhaps adjust the feedback order of each sub-district through dynamic indication, semi-static indication.UE just can feed back the channel information of each sub-district on ensuing one or several subframe after knowing the feedback order.
Embodiment two:
Suppose that one has the same frequency list of neighbor cells of 16 sub-districts as shown in table 2:
Table 2
Wherein the span of ID1 to ID16 is 0～504, representes the physical I D of each sub-district respectively, and IDi ≠ IDj is arranged, 1≤i＜j≤16.
Because eNB whenever after a while will be through the possible same frequency list of neighbor cells configuration change of high-level signaling notice UE; So eNB stores identical same frequency list of neighbor cells with UE in a period of time; ENB can consider in the frequency list of neighbor cells, to choose measuring assembly, and above-mentioned high-level signaling can be placed in the Radio Resource control information and transmit.The method of transmission can be the method for bitmap; Shown in list of neighbor cells; Each all comprises the ID of 16 sub-districts of arranging according to a definite sequence with the frequency list of neighbor cells; So can be used for indicating the sub-district in the measuring assembly through in CQI-ReportConfig, adding certain information, adopt bitmap mode can for:
| 0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 1 | 0 | 1 | 0 | 1 |
Just can learn the channel information of which sub-district of concrete feedback in the frequency list of neighbor cells by 16 above-mentioned Bit Strings.Needing the bitmap value of the sub-district of feedback is 0 or 1, and that need not feed back is then opposite.Can learn with list of neighbor cells frequently by top Bit String is corresponding, need feedback, the channel information of 14,16 sub-districts (pairing bitmap value is under 1 the situation when requiring to feed back) with in the list of neighbor cells frequently the 2nd, 8,10,12.UE is after receiving the measuring assembly indication; Just can be through learning the physical I D of these sub-districts with the frequency list of neighbor cells; Further the message such as pattern indication of coupling system frame number, CSI-RS just can be learnt the pattern of the CSI-RS of different measuring sub-district; Thereby channel measurement is carried out in a plurality of sub-districts, just can carry out the feedback of a plurality of cell channel information then in a certain order one by one.For example can be according to the order of bitmap (otherwise or), perhaps eNB and UE adopt fixing feedback to feed back in proper order, perhaps adjust the feedback order of each sub-district through dynamic indication, semi-static indication.UE just can feed back the channel information of each sub-district on ensuing one or several subframe after knowing the feedback order.
Embodiment three:
Suppose that the last 8 cell lists that feed back or RSRP the most by force are as shown in table 3:
Table 3
Wherein the span of ID1 to ID8 is 0～504, representes the physical I D of each sub-district respectively, and IDi ≠ IDj is arranged, 1≤i＜j≤8.
Because eNB whenever after a while will be through the possible list of neighbor cells configuration change of high-level signaling notice UE; So eNB stores identical list of neighbor cells with UE in a period of time, and UE understands periodic report or report aperiodic the RSRP of a plurality of sub-districts and corresponding sub-district ID to tabulate.ENB contains identical feedback RSRP cell list with UE at a period of time internal memory.ENB can consider in the perhaps the strongest RSRP cell list of the RSRP cell list of report recently, to choose measuring assembly, and above-mentioned high-level signaling can be placed in the Radio Resource control information and transmit.The method of transmission can be the method for bitmap; Shown in list of neighbor cells; Each list of neighbor cells all comprises the ID according to certain tactic 8 sub-districts; So can be used for indicating the sub-district in the measuring assembly through in CQI-ReportConfig, adding certain information, adopt bitmap mode can for:
| ?0 | 1 | 0 | 1 | 0 | 1 | 0 | 0 |
Just can learn the channel information of which sub-district in the concrete reporting cell tabulation by 8 above-mentioned Bit Strings.Needing the bitmap value of the sub-district of feedback is 0 or 1, and the sub-district bitmap value that need not feed back is then opposite.Can learn by the corresponding reporting cell tabulation of top Bit String, need the channel information (pairing bitmap value is under 1 the situation when requiring to feed back) of the 2nd, 4,6 sub-districts in the feedback list of neighbor cells.UE is after receiving the measuring assembly indication; Just can learn the physical I D of these sub-districts through the report tabulation; Message such as further coupling system frame number just can be learnt the pattern of the CSI-RS of different measuring sub-district; Thereby channel measurement is carried out in a plurality of sub-districts, just can carry out the feedback of a plurality of cell channel information then in a certain order one by one.For example can be according to the order of bitmap (otherwise or), perhaps eNB and UE adopt fixing feedback to feed back in proper order, perhaps adjust the feedback order of each sub-district through dynamic indication, semi-static indication.UE just can feed back the channel information of each sub-district on ensuing one or several subframe after knowing the feedback order.
Embodiment four:
Because eNB whenever after a while will be through the possible list of neighbor cells configuration change of high-level signaling notice UE; So eNB stores identical list of neighbor cells with UE in a period of time; ENB can consider in list of neighbor cells, to choose measuring assembly, and above-mentioned high-level signaling can be placed in the Radio Resource control information and transmit.The method of transmission can be the method for notice index; Shown in list of neighbor cells; Each list of neighbor cells all comprises the ID according to certain tactic 32 sub-districts; So can be used for indicating the sub-district in the measuring assembly through in CQI-ReportConfig, adding certain information, just can learn the channel information of which sub-district in the concrete feedback list of neighbor cells by the index indication.Like index value is { 2,8,10,12; 14,16}, just can learn needs in the feedback list of neighbor cells the 2nd, 8; 10,12,14; The channel information of 16 sub-districts, UE just can learn the physical I D of these sub-districts through list of neighbor cells after receiving the measuring assembly indication; Message such as further coupling system frame number just can be learnt the pattern of the CSI-RS of different measuring sub-district, thereby to carrying out channel measurement in a plurality of sub-districts, just can carry out the feedback of a plurality of cell channel information then in a certain order one by one.For example can be according to the order of index (otherwise or), perhaps eNB and UE adopt fixing feedback to feed back in proper order, perhaps adjust the feedback order of each sub-district through dynamic indication, semi-static indication.UE just can feed back the channel information of each sub-district on ensuing one or several subframe after knowing the feedback order.
Embodiment five:
Because eNB whenever after a while will be through the possible same frequency list of neighbor cells configuration change of high-level signaling notice UE; So eNB stores identical same frequency list of neighbor cells with UE in a period of time; ENB can consider in the frequency list of neighbor cells, to choose measuring assembly, and above-mentioned high-level signaling can be placed in the Radio Resource control information and transmit.The method of transmission can be the method for notice index; Shown in the frequency list of neighbor cells; Each all comprises the ID according to certain tactic 16 sub-districts with the frequency list of neighbor cells; So can be used for indicating the sub-district in the measuring assembly through in CQI-ReportConfig, adding certain information, just can learn the channel information of concrete feedback with which sub-district in the frequency list of neighbor cells by the index indication.Like index value is { 2,8,10,12; 14,16}, just can learn needs feedback with in the list of neighbor cells frequently the 2nd, 8; 10,12,14; The channel information of 16 sub-districts, UE just can be through learning the physical I D of these sub-districts with the frequency list of neighbor cells after receiving the measuring assembly indication; Message such as further coupling system frame number just can be learnt the pattern of the CSI-RS of different measuring sub-district, thereby to carrying out channel measurement in a plurality of sub-districts, just can carry out the feedback of a plurality of cell channel information then in a certain order one by one.For example can be according to the order of index (otherwise or), perhaps eNB and UE adopt fixing feedback to feed back in proper order, perhaps adjust the feedback order of each sub-district through dynamic indication, semi-static indication.UE just can feed back the channel information of each sub-district on ensuing one or several subframe after knowing the feedback order.
Embodiment six:
ENB can be used for indicating the sub-district in the measuring assembly through in CQI-ReportConfig, adding certain information; Can be directly in CQI-ReportConfig the physical I D of sub-district in the indication measurement; UE is after receiving the measuring assembly indication; Further message such as coupling system frame number, the indication of CSI-RS pattern just can be learnt the pattern of the CSI-RS of different measuring sub-district; Thereby channel measurement is carried out in a plurality of sub-districts, just can carry out the feedback of a plurality of cell channel information then in a certain order one by one.For example can be according to the order of physical I D tabulation (otherwise or), perhaps eNB and UE adopt fixing feedback to feed back in proper order, and the feedback of perhaps adjusting each sub-district through dynamic indication, semi-static indication is in proper order.UE just can feed back the channel information of each sub-district on ensuing one or several subframe after knowing the feedback order.
Embodiment seven:
Suppose that the last 8 cell lists that feed back or RSRP the most by force are shown in above-mentioned table 3.
Because eNB whenever after a while will be through the possible list of neighbor cells configuration change of high-level signaling notice UE; So eNB stores identical list of neighbor cells with UE in a period of time, and UE understands periodic report or report aperiodic the RSRP of a plurality of sub-districts and corresponding sub-district ID to tabulate.ENB contains identical feedback RSRP cell list (can abbreviate the report tabulation as) with UE at a period of time internal memory.ENB can consider in the perhaps the strongest RSRP cell list of the RSRP cell list of report recently, to choose measuring assembly, and above-mentioned high-level signaling can be placed in the Radio Resource control information and transmit.The method of transmission can be the method for feedback index, and shown in the reporting cell tabulation, each list of neighbor cells all comprises the ID according to certain tactic 8 sub-districts; So can be used for indicating the sub-district in the measuring assembly through in CQI-ReportConfig, adding certain information, needing the index of the sub-district of feedback is { 2,4; 6} can be learnt by the tabulation of top reporting cell, needs in the feedback report tabulation the 2nd; The channel information of 4,6 sub-districts.UE is after receiving the measuring assembly indication; Just can learn the physical I D of these sub-districts through the report tabulation; Message such as further coupling system frame number just can be learnt the pattern of the CSI-RS of different measuring sub-district; Thereby channel measurement is carried out in a plurality of sub-districts, just can carry out the feedback of a plurality of cell channel information then in a certain order one by one.For example can be according to the order of call number (otherwise or), perhaps eNB and UE adopt fixing feedback to feed back in proper order, perhaps adjust the feedback order of each sub-district through dynamic indication, semi-static indication.UE just can feed back the channel information of each sub-district on ensuing one or several subframe after knowing the feedback order.
Embodiment eight:
32 cell lists supposing the last feedback are shown in above-mentioned table 1.
Because eNB whenever after a while will be through the possible list of neighbor cells configuration change of high-level signaling notice UE; So eNB stores identical list of neighbor cells with UE in a period of time; ENB can consider in list of neighbor cells, to choose measuring assembly, and above-mentioned high-level signaling can be placed in the Radio Resource control information and transmit.The method of transmission can be the method for bitmap; Shown in list of neighbor cells; Each list of neighbor cells all comprises the ID according to certain tactic 32 sub-districts, thus can come the sub-district in the indication measurement set through the Bit String of bitmap, adopt bitmap mode can for:
| 0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 1 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Just can learn the channel information of which sub-district in the concrete feedback list of neighbor cells by 32 above-mentioned Bit Strings.Needing the bitmap value of the sub-district of feedback is 0 or 1, and that need not feed back is then opposite.Can learn by the corresponding list of neighbor cells of top Bit String, need in the feedback list of neighbor cells the 2nd, 8,10,12, the channel information of 14,16 sub-districts (pairing bitmap value is under 1 the situation when requiring to feed back).UE is after receiving the measuring assembly indication; Just can learn the physical I D of these sub-districts through list of neighbor cells; Message such as further coupling system frame number just can be learnt the pattern of the CSI-RS of different measuring sub-district; Thereby channel measurement is carried out in a plurality of sub-districts, just can carry out the feedback of a plurality of cell channel information then in a certain order one by one.For example can be according to the order of bitmap (otherwise or), perhaps eNB and UE adopt fixing feedback to feed back in proper order, perhaps adjust the feedback order of each sub-district through dynamic indication, semi-static indication.UE just can feed back the channel information of each sub-district on ensuing one or several subframe after knowing the feedback order.
Need to prove that the indication information of bitmap is not placed on the high-level signaling transmission in the present embodiment, but obtains through the CRC bit scramble to DCI.UE at first utilizes preceding 16 combinations with the RNTI of this UE of 32 bimap sequences to carry out blind check, the combination of selected corresponding bitmap sequence and RNTI if blind check is correct after receiving DCI; Back 16 combinations with the RNTI of this UE of blind check bitmap sequence in the downlink frame of following next time then; And when blind check is correct combination said preceding 16 with back 16 as 32 bitmap sequence, to feed back the channel information of which sub-district according to the bitmap sequence judgement needs of accomplishing combination.
In practical application, eNB also can carry out preceding 16 and back 16 xor operation of bitmap sequence earlier, and in DCI, adds the generation reason that 1bit indicates the xor operation result in addition.At this moment the DCI content that increases only is 1bit, and at this moment definite can being limited in the sub-frame of multipoint cooperative sub-district is accomplished.
Certainly; Also can consider to be applied to above-mentioned scrambling mode of operation in the scrambling to the CRC bit of PDSCH; As: at this moment the length of CRC bit is 24; Remaining 8 bit can be used to 24 bits that scrambling has been selected, and 8 bits that can a scrambling 24 bits also can repeat 8 bits several times (2 times or 3 times) and again 24 Bit datas carried out scrambling.Be that example is described only below with CRC scrambling to DCI.
Embodiment nine:
Because eNB whenever after a while will be through the possible same frequency list of neighbor cells configuration change of high-level signaling notice UE; So eNB stores identical same frequency list of neighbor cells with UE in a period of time; ENB can consider in the frequency list of neighbor cells, to choose measuring assembly, and above-mentioned high-level signaling can be placed in the Radio Resource control information and transmit.The method of transmission can be the method for bitmap; Shown in the frequency list of neighbor cells; Each all comprises the ID according to certain tactic 16 sub-districts with the frequency list of neighbor cells; So can come the sub-district in the indication measurement set through the Bit String of bitmap, adopt bitmap mode can for:
| 0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 1 | 0 | 1 | 0 | 1 |
Just can learn the channel information of concrete feedback by 16 above-mentioned Bit Strings with which sub-district in the frequency list of neighbor cells.Needing the bitmap value of the sub-district of feedback is 0 or 1, and that need not feed back is then opposite.Can learn by the corresponding list of neighbor cells of top Bit String, need feedback, the channel information of 14,16 sub-districts (pairing bitmap value is under 1 the situation when requiring to feed back) with in the list of neighbor cells frequently the 2nd, 8,10,12.UE is after receiving the measuring assembly indication; Just can be through learning the physical I D of these sub-districts with the frequency list of neighbor cells; Message such as further coupling system frame number just can be learnt the pattern of the CSI-RS of different measuring sub-district; Thereby channel measurement is carried out in a plurality of sub-districts, just can carry out the feedback of a plurality of cell channel information then in a certain order one by one.For example can be according to the order of bitmap (otherwise or), perhaps eNB and UE adopt fixing feedback to feed back in proper order, perhaps adjust the feedback order of each sub-district through dynamic indication, semi-static indication.UE just can feed back the channel information of each sub-district on ensuing one or several subframe after knowing the feedback order.
Need to prove that the indication information of bitmap is not placed on the high-level signaling transmission in the present embodiment, but obtains through the CRC scrambling to DCI.UE utilizes the combination of the RNTI of 16 bimap sequences and this UE to carry out blind check after receiving DCI; The combination of selected corresponding bitmap sequence and RNTI if blind check is correct utilizes detected bitmap sequence judgement to need the channel information of which sub-district of feedback.
Certainly, also can consider to be applied to above-mentioned scrambling mode of operation in the scrambling to the CRC bit of PDSCH, as: at this moment the length of CRC bit is 24, can carry out scrambling to 24 Bit datas again to several of the bit cycle repeats of 16 bitmap sequences.
Embodiment ten:
Suppose that the last 8 cell lists that feed back or RSRP the most by force are shown in above-mentioned table 3.
Because eNB whenever after a while will be through the possible list of neighbor cells configuration change of high-level signaling notice UE; So eNB stores identical list of neighbor cells with UE in a period of time, and UE understands periodic report or report aperiodic the RSRP of a plurality of sub-districts and corresponding sub-district ID to tabulate.ENB contains identical feedback RSRP cell list with UE at a period of time internal memory.ENB can consider in the perhaps the strongest RSRP cell list of the RSRP cell list of report recently, to choose measuring assembly, and above-mentioned high-level signaling can be placed in the Radio Resource control information and transmit.The method of transmission can be the method for bitmap; Shown in list of neighbor cells; Each list of neighbor cells all comprises the ID of 8 sub-districts of arranging according to a definite sequence, so just can be learnt the channel information of which sub-district in the tabulation of concrete reporting cell by 8 Bit String.Needing the bitmap value of the sub-district of feedback is 0 or 1, and the sub-district bitmap value that need not feed back is then opposite.Can learn by the corresponding reporting cell tabulation of top Bit String, need the channel information (pairing bitmap value is under 1 the situation when requiring to feed back) of the 2nd, 4,6 sub-districts in the feedback list of neighbor cells.UE is after receiving the measuring assembly indication; Just can learn the physical I D of these sub-districts through the report tabulation; Message such as further coupling system frame number just can be learnt the pattern of the CSI-RS of different measuring sub-district; Thereby channel measurement is carried out in a plurality of sub-districts, just can carry out the feedback of a plurality of cell channel information then in a certain order one by one.For example can be according to the order of bitmap (otherwise or), perhaps eNB and UE adopt fixing feedback to feed back in proper order, perhaps adjust the feedback order of each sub-district through dynamic indication, semi-static indication.UE just can feed back the channel information of each sub-district on ensuing one or several subframe after knowing the feedback order.
Need to prove that the indication information of bitmap is not placed on the high-level signaling transmission in the present embodiment, but obtains through the CRC scrambling to DCI.UE receives and at first repeats 8 bimap sequences behind the DCI to obtain 16 sequence; Use the combination of the RNTI of this 16 bit sequence and this UE afterwards and carry out blind check; The channel information of which sub-district is fed back in the combination of selected corresponding bitmap sequence and RNTI if blind check is correct then according to 8 bitmap sequence judgement needs.
Certainly, also can consider to be applied to above-mentioned scrambling mode of operation in the scrambling to the CRC bit of PDSCH, as: can carry out scrambling to the CRC bit of PDSCH, at this moment the bitmap of 8 bits needs repetition to come for 3 times the CRC bit of 24 bits is carried out scrambling.
Visible by Fig. 1 and above-mentioned each embodiment, the present invention realizes that the overall operation thinking of COMP measuring assembly notice can represent as shown in Figure 2.Referring to Fig. 2, Fig. 2 is a COMP measuring assembly notice general flow chart of the present invention, and this flow process may further comprise the steps:
Step 210: confirm the multipoint cooperative measuring assembly that UE need feed back.
Step 220: send the measuring assembly indication to UE according to fixed multipoint cooperative measuring assembly.
In order to guarantee that above-mentioned technology contents can realize smoothly, device as shown in Figure 3 can be set.Referring to Fig. 3, Fig. 3 is the COMP measuring assembly notifying device figure of the embodiment of the invention, and this device comprises that continuous measuring assembly chooses unit, measuring assembly notification unit, and this device can be arranged at the functional entity that eNB etc. is used for UE is communicated management.
During concrete the application, measuring assembly is chosen the multipoint cooperative measuring assembly that the unit can confirm that UE need feed back, and this measuring assembly is notified to the measuring assembly notification unit, sends measuring assembly indication according to the measuring assembly of receiving to UE by the measuring assembly notification unit.
Need to prove that measuring assembly is chosen the unit when confirming measuring assembly, the source of measuring assembly can be for list of neighbor cells, with list of neighbor cells or RSRP measure feedback report frequently; And the mode of measuring assembly notification unit transmission measuring assembly indication has multiple, as: send through high-level signaling, perhaps through the transmission of the content beyond the high-level signaling.When sending the measuring assembly indication through high-level signaling, this high-level signaling can be for PDCCH etc., and can pass through high-level signaling, uses bitmap mode, call number mode or physical I D mode and sends measuring assembly to UE and indicate; When sending the measuring assembly indication through the content beyond the high-level signaling, can be through the CRC of DCI or the CRC of PDSCH be sent the measuring assembly indication than the mode of top grade information scrambling to UE.
In addition, after UE receives the measuring assembly indication from the measuring assembly notification unit, just can be according to the channel information and the feedback of measuring assembly indication measurement multipoint cooperative sub-district.
Have again; The mode of sending the measuring assembly indication through high-level signaling also has multiple; As: radioResourceConfigCommon in SIB2 adds new IE item, and the antennaInfoCommon of radioResourceConfigCommon that can be in SIB2 adds new IE item, also can in rrc message, add new IE item; Use above-mentioned IE item and send the measuring assembly indication; Just will be the bitmap sequence list of notice measuring assembly, index or sub-district ID tabulation join in the new IE item and are handed down to UE through DL-SCH (DSCH Downlink Shared Channel), and UE is through obtaining the information of measurement of correlation set to relevant DL-SCH decoding.
The concrete operations that each functional entity shown in Figure 3 can be realized are described in detail in aforementioned flow chart and embodiment, repeat no more at this.
Visible in sum, no matter be method or device, COMP measuring assembly notification technique of the present invention can successfully notify UE to be used to feed back the measuring assembly of a plurality of COMP cell channel information.
The above is merely preferred embodiment of the present invention, is not to be used to limit protection scope of the present invention, all any modifications of within spirit of the present invention and principle, being done, is equal to replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. multipoint cooperative measuring assembly Notification Method is characterized in that this method comprises:
Confirm the multipoint cooperative measuring assembly that user equipment (UE) need feed back, send the measuring assembly indication to UE according to fixed multipoint cooperative measuring assembly.
2. method according to claim 1 is characterized in that, confirms that the process of said measuring assembly comprises:
In list of neighbor cells, choose measuring assembly; Perhaps,
In with the frequency list of neighbor cells, choose measuring assembly; Perhaps,
Measuring assembly is perhaps chosen in 8 sub-districts that Reference Signal Received Power is the strongest in 8 sub-districts in the last feedback reference signal of UE received power.
3. method according to claim 2 is characterized in that, the method for said transmission measuring assembly indication is:
Send the measuring assembly indication through high-level signaling; This indicating mode comprises: the radioResourceConfigCommon in system information block SIB2 adds new information element IE item; Or the new IE item of the antennaInfoCommon of the radioResourceConfigCommon in SIB2 adding, or in the Radio Resource control information, add new IE item; Use above-mentioned IE item and send the measuring assembly indication;
Perhaps, send the measuring assembly indication through the content beyond the high-level signaling; This indicating mode comprises that the CRC bit to the cyclic redundancy check (CRC) bit of the Downlink Control Information in the Physical Downlink Control Channel or Physical Downlink Shared Channel PDSCH carries out scrambling.
4. method according to claim 3 is characterized in that, when sending the indication of said measuring assembly, is used to indicate the mode of measuring assembly to be:
Indicate the sub-district that needs feedback channel information with bitmap bitmap; Perhaps,
Index of reference number tabulation indicates the sub-district that needs feedback channel information; Perhaps,
Physical I D tabulation with the sub-district indicates the sub-district that needs feedback channel information.
5. according to each described method of claim 1 to 4, it is characterized in that this method further comprises:
Indication detects the channel information of corresponding multipoint cooperative sub-district to UE according to the measuring assembly received, and the cell channel information that arrives of detection feedback.
6. a multipoint cooperative measuring assembly notifying device is characterized in that, this device comprises that measuring assembly chooses unit, measuring assembly notification unit; Wherein,
Said measuring assembly is chosen the unit, is used for the multipoint cooperative measuring assembly that definite UE need feed back, and fixed measuring assembly is notified to the measuring assembly notification unit;
Said measuring assembly notification unit is used for sending the measuring assembly indication according to the measuring assembly of receiving to UE.
7. device according to claim 6 is characterized in that, when confirming measuring assembly, said measuring assembly is chosen the unit and is used for:
In list of neighbor cells, choose measuring assembly; Perhaps,
In with the frequency list of neighbor cells, choose measuring assembly; Perhaps,
Measuring assembly is perhaps chosen in 8 sub-districts that Reference Signal Received Power is the strongest in 8 sub-districts in the last feedback reference signal of UE received power.
8. device according to claim 7 is characterized in that, when sending the measuring assembly indication, said measuring assembly notification unit is used for:
Send the measuring assembly indication through high-level signaling; This indicating mode comprises: the radioResourceConfigCommon in SIB2 adds new IE item; Or the new IE item of the antennaInfoCommon of the radioResourceConfigCommon in SIB2 adding, or in the Radio Resource control information, add new IE item; Use above-mentioned IE item and send the measuring assembly indication;
Perhaps, send the measuring assembly indication through the content beyond the high-level signaling; This indicating mode appearance comprises carries out scrambling to the CRC bit of the Downlink Control Information of physical down channel or the CRC bit of PDSCH.
9. device according to claim 8 is characterized in that, in the process of sending said measuring assembly indication, when the mode of indication measurement set, said measuring assembly notification unit is used for:
Indicate the sub-district that needs feedback channel information with bitmap; Perhaps,
Index of reference number tabulation indicates the sub-district that needs feedback channel information; Perhaps,
Physical I D tabulation with the sub-district indicates the sub-district that needs feedback channel information.
10. according to each described device of claim 6 to 9, it is characterized in that said UE is further used for:
Indication detects the channel information of corresponding multipoint cooperative sub-district according to the measuring assembly received, and the cell channel information that arrives of detection feedback.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN201010244357.6A CN102348233B (en) | 2010-07-29 | 2010-07-29 | A kind of COMP measuring assembly Notification Method and device |
| PCT/CN2011/076977 WO2012013114A1 (en) | 2010-07-29 | 2011-07-08 | Method and apparatus for providing coordinated multi-point (comp) measurement set information |
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| CN201010244357.6A CN102348233B (en) | 2010-07-29 | 2010-07-29 | A kind of COMP measuring assembly Notification Method and device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102480756A (en) * | 2010-11-29 | 2012-05-30 | 中兴通讯股份有限公司 | Method and system for configuring multipoint coordinate transmission |
| CN103427960A (en) * | 2012-05-14 | 2013-12-04 | 上海贝尔股份有限公司 | Multipoint coordinated information feedback method and device |
| WO2014063654A1 (en) * | 2012-10-25 | 2014-05-01 | 华为技术有限公司 | Cell measurement method, apparatus, terminal, network-side device and system |
| CN108023674A (en) * | 2016-11-04 | 2018-05-11 | 北京三星通信技术研究有限公司 | Method, user equipment and the network equipment of channel condition information measurement |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106817154A (en) * | 2015-11-30 | 2017-06-09 | 展讯通信（上海）有限公司 | Base station and information feedback control method |
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| CN101594644A (en) * | 2009-07-02 | 2009-12-02 | 西安电子科技大学 | Support the signaling interaction method that the CoMP operational set is selected |
| US20100106828A1 (en) * | 2008-10-24 | 2010-04-29 | Qualcomm Incorporated | Method and apparatus for interference reporting in a n-mimo communication system |
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| CN101505182B (en) * | 2009-03-18 | 2013-04-17 | 北京邮电大学 | Data transmission method and base station based on wave beam forming in multi-antenna system |
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2010
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20100106828A1 (en) * | 2008-10-24 | 2010-04-29 | Qualcomm Incorporated | Method and apparatus for interference reporting in a n-mimo communication system |
| CN101594644A (en) * | 2009-07-02 | 2009-12-02 | 西安电子科技大学 | Support the signaling interaction method that the CoMP operational set is selected |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102480756A (en) * | 2010-11-29 | 2012-05-30 | 中兴通讯股份有限公司 | Method and system for configuring multipoint coordinate transmission |
| CN102480756B (en) * | 2010-11-29 | 2016-08-03 | 中兴通讯股份有限公司 | The collocation method of coordinated multipoint transmission and system |
| CN103427960A (en) * | 2012-05-14 | 2013-12-04 | 上海贝尔股份有限公司 | Multipoint coordinated information feedback method and device |
| WO2014063654A1 (en) * | 2012-10-25 | 2014-05-01 | 华为技术有限公司 | Cell measurement method, apparatus, terminal, network-side device and system |
| CN103781112A (en) * | 2012-10-25 | 2014-05-07 | 华为技术有限公司 | Cell measurement method, device, terminal, network side equipment and system |
| CN108023674A (en) * | 2016-11-04 | 2018-05-11 | 北京三星通信技术研究有限公司 | Method, user equipment and the network equipment of channel condition information measurement |
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| WO2012013114A1 (en) | 2012-02-02 |
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