CN102868497B - The processing method of upstream multi-antenna transfer of data instruction and device - Google Patents
The processing method of upstream multi-antenna transfer of data instruction and device Download PDFInfo
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Abstract
The processing method that the embodiment of the present invention provides upstream multi-antenna transfer of data to indicate and device, a kind of method comprises: the base station selected order for upstream multi-antenna transfer of data and pre-coding matrix; Described base station sends pre-coding matrix instruction corresponding to the pre-coding matrix of described selection to via node, and send order instruction corresponding to the order of described selection by RRC signaling to described via node, determine pre-coding matrix to make described via node according to described pre-coding matrix instruction and the instruction of described order.Send order instruction by DCI when the embodiment of the present invention can avoid base station scheduling via node in prior art and the more problem of the bit number taken in DCI that causes, thus reduce the expense of DCI.
Description
Technical field
The embodiment of the present invention relates to the communication technology, particularly relates to processing method and the device of the instruction of upstream multi-antenna transfer of data.
Background technology
In a communications system, as Long Term Evolution (LongTermEvolution, be called for short LTE) system and advanced Long Term Evolution (LongTermEvolutionAdvanced, be called for short LTE-A) system relay return link in, via node (RelayNode, be called for short RN) by base station, as evolved node B (EvolvedNodeB, being called for short eNB) scheduling is when carrying out upstream multi-antenna transfer of data, Downlink Control Information (the DownlinkControlInfomation that via node is sent by eNB, be called for short DCI) obtain upstream multi-antenna transfer of data order instruction (RankIndicator, be called for short RI) and pre-coding matrix instruction (PrecodingMatrixIndicator, be called for short PMI), then corresponding pre-coding matrix is determined according to order (rank) instruction obtained and pre-coding matrix instruction, thus make via node that this pre-coding matrix can be utilized to carry out upstream multi-antenna transfer of data.
But, because order indicates the bit number taken in DCI more, result in the increase of DCI expense.
Summary of the invention
The processing method that the embodiment of the present invention provides upstream multi-antenna transfer of data to indicate and device, in order to reduce the expense of DCI.
One aspect of the present invention provides the processing method of a kind of upstream multi-antenna transfer of data instruction, comprising:
The base station selected order for upstream multi-antenna transfer of data and pre-coding matrix;
Described base station sends pre-coding matrix instruction corresponding to the pre-coding matrix of described selection to via node, and send order instruction corresponding to the order of described selection by RRC signaling to described via node, determine pre-coding matrix to make described via node according to described pre-coding matrix instruction and the instruction of described order.
The present invention provides the processing method of a kind of upstream multi-antenna transfer of data instruction on the other hand, comprising:
Via node obtains the pre-coding matrix instruction of base station transmission, and is indicated by the order that RRC signaling acquisition base station sends;
Described via node, according to described pre-coding matrix instruction and the instruction of described order, determines pre-coding matrix.
The present invention provides the processing unit of a kind of upstream multi-antenna transfer of data instruction on the other hand, comprising:
Selected cell, for selecting order for upstream multi-antenna transfer of data and pre-coding matrix;
Transmitting element, for the pre-coding matrix instruction that the pre-coding matrix sending the selection of described selected cell to via node is corresponding, and send order instruction corresponding to order that described selected cell selects by RRC signaling to described via node, determine pre-coding matrix to make described via node according to the instruction of described pre-coding matrix and the instruction of described order.
The present invention provides the processing unit of a kind of upstream multi-antenna transfer of data instruction on the other hand, comprising:
Obtaining unit, for obtaining the pre-coding matrix instruction of base station transmission, and being indicated by the order that radio resource control RRC signaling acquisition base station sends;
Determining unit, the described pre-coding matrix for obtaining according to described acquisition unit indicates and the instruction of described order, determines pre-coding matrix.
As shown from the above technical solution, embodiment of the present invention base station is after the order selecting to be used for upstream multi-antenna transfer of data and pre-coding matrix, to the pre-coding matrix instruction that the pre-coding matrix of via node transmission selection is corresponding, and indicated to the order that the order of via node transmission selection is corresponding by RRC signaling, can to avoid in prior art sending order instruction by DCI during subscriber equipment under base station scheduling via node and the more problem of the bit number taken in DCI that causes, thus reduce the expense of DCI.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The schematic flow sheet of the processing method of the upstream multi-antenna transfer of data instruction that Fig. 1 provides for one embodiment of the invention;
The schematic flow sheet of the processing method of the upstream multi-antenna transfer of data instruction that Fig. 2 provides for another embodiment of the present invention;
The schematic flow sheet of the processing method of the upstream multi-antenna transfer of data instruction that Fig. 3 provides for another embodiment of the present invention;
The schematic flow sheet of the processing method of the upstream multi-antenna transfer of data instruction that Fig. 4 provides for another embodiment of the present invention;
The schematic flow sheet of the processing method of the upstream multi-antenna transfer of data instruction that Fig. 5 provides for another embodiment of the present invention;
The schematic flow sheet of the processing method of the upstream multi-antenna transfer of data instruction that Fig. 6 provides for another embodiment of the present invention;
The schematic flow sheet of the processing method of the upstream multi-antenna transfer of data instruction that Fig. 7 provides for another embodiment of the present invention;
The schematic flow sheet of the processing method of the upstream multi-antenna transfer of data instruction that Fig. 8 provides for another embodiment of the present invention;
The structural representation of the processing unit of the upstream multi-antenna transfer of data instruction that Fig. 9 provides for another embodiment of the present invention;
The structural representation of the processing unit of the upstream multi-antenna transfer of data instruction that Figure 10 provides for another embodiment of the present invention.
Embodiment
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
The schematic flow sheet of the processing method of the upstream multi-antenna transfer of data instruction that Fig. 1 provides for one embodiment of the invention, as shown in Figure 1, the processing method of the upstream multi-antenna transfer of data instruction of the present embodiment can comprise:
101, the base station selected order for upstream multi-antenna transfer of data and pre-coding matrix;
102, above-mentioned base station sends pre-coding matrix instruction corresponding to the pre-coding matrix of above-mentioned selection to via node, and by wireless heterogeneous networks (RadioResourceControl, being called for short RRC) signaling sends order instruction corresponding to the order of above-mentioned selection to above-mentioned via node, determines pre-coding matrix to make this via node according to above-mentioned pre-coding matrix instruction and the instruction of above-mentioned order.
Be understandable that: via node can utilize this pre-coding matrix to carry out upstream multi-antenna transfer of data after determining pre-coding matrix according to above-mentioned pre-coding matrix instruction and the instruction of above-mentioned order.
Because base station and via node are all static, and there is stronger direct path between the two, therefore, the frequency characteristic of channel is comparatively smooth and change is slow, thus the order of upstream multi-antenna transfer of data may be remained unchanged within the longer time.Therefore, base station can without the need to dynamically send to via node for the DCI of uplink scheduling in comprise the order of upstream multi-antenna transfer of data, but in the RRC signaling sent to via node, semi-statically comprise the order of upstream multi-antenna transfer of data.
In the present embodiment, base station is after the order selecting to be used for upstream multi-antenna transfer of data and pre-coding matrix, to the pre-coding matrix instruction that the pre-coding matrix of via node transmission selection is corresponding, and indicated to the order that the order of via node transmission selection is corresponding by RRC signaling, can to avoid in prior art sending order instruction by DCI during subscriber equipment under base station scheduling via node and the more problem of the bit number taken in DCI that causes, thus reduce the expense of DCI.
Be understandable that: the code book of upstream multi-antenna transfer of data can adopt two kinds of codebook structures, one is single codebook structure (namely via node utilizes a pre-coding matrix to carry out upstream multi-antenna transfer of data), and another kind is two codebook structure (i.e. via node utilize two pre-coding matrixes to construct final pre-coding matrix carry out upstream multi-antenna transfer of data).
Alternatively, if the code book of upstream multi-antenna transfer of data adopts single codebook structure (namely via node utilizes a pre-coding matrix to carry out upstream multi-antenna transfer of data), so further, the base station selected pre-coding matrix in the present embodiment can comprise the first pre-coding matrix.Correspondingly, base station can send pre-coding matrix instruction corresponding to the first pre-coding matrix of above-mentioned selection by a DCI or above-mentioned RRC signaling to above-mentioned via node.
Alternatively, if the code book of upstream multi-antenna transfer of data adopts two codebook structure (i.e. via node utilize two pre-coding matrixes to construct final pre-coding matrix carry out upstream multi-antenna transfer of data), so further, the base station selected pre-coding matrix in the present embodiment can comprise the second pre-coding matrix and the 3rd pre-coding matrix.Correspondingly, base station can send pre-coding matrix instruction corresponding to the second pre-coding matrix of above-mentioned selection by the 2nd DCI to above-mentioned via node, the pre-coding matrix instruction corresponding with the 3rd pre-coding matrix, or pre-coding matrix instruction corresponding to the second pre-coding matrix of above-mentioned selection can also be sent by above-mentioned RRC signaling to above-mentioned via node, and send pre-coding matrix instruction corresponding to the 3rd pre-coding matrix of above-mentioned selection by the 3rd DCI to above-mentioned via node.
Wherein, above-mentioned second pre-coding matrix may be used for representing the long-term characteristic of channel, then above-mentioned 3rd pre-coding matrix may be used for the characteristic of channel representing short-term; Or
Above-mentioned second pre-coding matrix may be used for the characteristic of channel representing broadband, then above-mentioned 3rd pre-coding matrix may be used for the characteristic of channel representing arrowband; Or
Above-mentioned second pre-coding matrix may be used for representing the characteristic of channel that is long-term and broadband, then above-mentioned 3rd pre-coding matrix may be used for representing at least one in the characteristic of channel of short-term and the characteristic of channel of arrowband.
Order instruction RI can by base station by the semi-static configuration in ground of RRC signaling periodicity, and pre-coding matrix instruction PMI can by base station by Downlink Control Information aperiodically dynamic notification.When relaying node RN obtains the PMI value for transmitting uplink data from Downlink Control Information, then the RN RI value that utilizes the current RRC signaling received to comprise and above-mentioned PMI value determination pre-coding matrix.
Illustrate respectively further below by the situation of two other embodiment to above-mentioned two kinds of code books.
The schematic flow sheet of the processing method of the upstream multi-antenna transfer of data instruction that Fig. 2 provides for another embodiment of the present invention, the code book that the present embodiment is applicable to upstream multi-antenna transfer of data adopts the situation of single codebook structure.As shown in Figure 2, the processing method of the upstream multi-antenna transfer of data instruction of the present embodiment can comprise:
201, the base station selected order for upstream multi-antenna transfer of data;
202, above-mentioned base station is indicated to the order that the order of via node transmission selection is corresponding by RRC signaling;
203, the above-mentioned base station selected pre-coding matrix for upstream multi-antenna transfer of data;
204, above-mentioned base station is indicated to the pre-coding matrix that the pre-coding matrix of above-mentioned via node transmission selection is corresponding by DCI.
In the present embodiment, code book for upstream multi-antenna transfer of data adopts the situation of single codebook structure, base station is after selecting the order for upstream multi-antenna transfer of data, indicated to the order that the order of via node transmission selection is corresponding by RRC signaling, base station is after selecting the pre-coding matrix for upstream multi-antenna transfer of data, indicated to the pre-coding matrix that the pre-coding matrix of above-mentioned via node transmission selection is corresponding by DCI, can to avoid in prior art sending order instruction by DCI during subscriber equipment under base station scheduling via node and the more problem of the bit number taken in DCI that causes, thus reduce the expense of DCI.
Below will with up 4 antenna transmission as an example, the code book of definition comprises the sub-codebook that RI is 1,2,3 and 4.Wherein, RI be 1 sub-codebook comprise 24 pre-coding matrixes, corresponding PMI=0,1 ..., 23; RI be 2 sub-codebook comprise 16 pre-coding matrixes, corresponding PMI=0,1 ..., 15; RI be 3 sub-codebook comprise 12 pre-coding matrixes, corresponding PMI=0,1 ..., 11; RI be 4 sub-codebook only comprise 1 pre-coding matrix, corresponding PMI=0.When upstream multi-antenna transfer of data adopts 1 code word (codeword), 1 or 2 layer of transmission and RI can be adopted can be 1 or 2, wherein RI be 2 only for retransmit.When upstream multi-antenna transfer of data adopts 2 code words, 2 ~ 4 layers of transmission and RI can be adopted can be 2,3 or 4.Table 1 gives RI and PMI in prior art in DCI, and wherein RI and PMI adopts combined coding.
Table 1
From table 1, when upstream multi-antenna transfer of data adopts 1 code word, RI and PMI (i.e. the combined coding of RI and PMI) totally 40 states; When upstream multi-antenna transfer of data adopts 2 code words, RI and PMI has 29 states.In order to indicate all states when 1 code word or 2 code words, the bit number after RI and PMI combined coding should be 6.
Table 2 gives the PMI in the present embodiment as the RI=2 that base station is sent to via node by RRC signaling in DCI, namely by RRC signalling RI, transmits PMI by DCI.
Table 2
From table 2, when upstream multi-antenna transfer of data adopts 1 code word, PMI is totally 16 states; When upstream multi-antenna transfer of data adopts 2 code words, PMI has 16 states.In order to indicate all states when 1 code word or 2 code words, the bit number of PMI should be 4, compared with table 1, saves 2 bits of DCI.
Table 3 gives the PMI in the present embodiment as the RI=3 that base station is sent to via node by RRC signaling in DCI, namely by RRC signalling RI, transmits PMI, now only have the situation of two code words by DCI.
Table 3
From table 3, PMI has 12 states.In order to indicate all states during 2 code words, the bit number of PMI should be 4, compared with table 1, saves 2 bits of DCI.
The schematic flow sheet of the processing method of the upstream multi-antenna transfer of data instruction that Fig. 3 provides for another embodiment of the present invention, the present embodiment is applicable to the situation of the two codebook structure of code book employing of upstream multi-antenna transfer of data.As shown in Figure 3, the processing method of the upstream multi-antenna transfer of data instruction of the present embodiment can comprise:
301, the base station selected order for upstream multi-antenna transfer of data;
302, above-mentioned base station is indicated to the order that the order of via node transmission selection is corresponding by RRC signaling;
303, above-mentioned base station selected two pre-coding matrixes for upstream multi-antenna transfer of data;
Wherein, a pre-coding matrix, for representing long-term or the characteristic of channel in broadband, is designated as the first pre-coding matrix, and another pre-coding matrix, for representing the characteristic of channel of short-term or arrowband, is designated as the second pre-coding matrix;
304, above-mentioned base station is indicated to the pre-coding matrix that two pre-coding matrixes of above-mentioned via node transmission selection are corresponding by DCI, the pre-coding matrix instruction that the pre-coding matrix that namely the first pre-coding matrix is corresponding indicates and the second pre-coding matrix is corresponding.
In the present embodiment, code book for upstream multi-antenna transfer of data adopts the situation base station of two codebook structure after the order selecting to be used for upstream multi-antenna transfer of data, indicated to the order that the order of via node transmission selection is corresponding by RRC signaling, base station is after the first pre-coding matrix selecting to be used for upstream multi-antenna transfer of data and the second pre-coding matrix, indicated to the pre-coding matrix that pre-coding matrix indicates and the second pre-coding matrix is corresponding that the first pre-coding matrix of above-mentioned via node transmission selection is corresponding by DCI, can to avoid in prior art sending order instruction by DCI during subscriber equipment under base station scheduling via node and the more problem of the bit number taken in DCI that causes, thus reduce the expense of DCI.
The schematic flow sheet of the processing method of the upstream multi-antenna transfer of data instruction that Fig. 4 provides for another embodiment of the present invention, the present embodiment is applicable to the situation of the two codebook structure of code book employing of upstream multi-antenna transfer of data.As shown in Figure 4, the processing method of the upstream multi-antenna transfer of data instruction of the present embodiment can comprise:
401, the base station selected sum of ranks one for upstream multi-antenna transfer of data is for representing long-term or the pre-coding matrix of the characteristic of channel in broadband, is designated as the first pre-coding matrix;
402, above-mentioned base station is indicated to the pre-coding matrix that order indicates and the first pre-coding matrix is corresponding that the order of via node transmission selection is corresponding by RRC signaling;
403, above-mentioned base station selected another for upstream multi-antenna transfer of data is for representing the pre-coding matrix of the characteristic of channel of short-term or arrowband, is designated as the second pre-coding matrix;
404, above-mentioned base station is indicated to the pre-coding matrix that the second pre-coding matrix of above-mentioned via node transmission selection is corresponding by DCI.
In the present embodiment, code book for upstream multi-antenna transfer of data adopts the situation base station of two codebook structure after sum of ranks first pre-coding matrix selecting to be used for upstream multi-antenna transfer of data, indicated to the pre-coding matrix that order indicates and the first pre-coding matrix is corresponding that the order of via node transmission selection is corresponding by RRC signaling, base station is after selecting the second pre-coding matrix for upstream multi-antenna transfer of data, indicated to the pre-coding matrix that the second pre-coding matrix of above-mentioned via node transmission selection is corresponding by DCI, can to avoid in prior art sending order instruction by DCI during subscriber equipment under base station scheduling via node and the more problem of the bit number taken in DCI that causes, thus reduce further the expense of DCI.
Below by with the maximum RI of up 8 antenna be the transmission based on two codebook precoding of 4 as an example, the code book of definition comprises the sub-codebook that RI is 1,2,3 and 4.The number of two pre-coding matrixes (i.e. the second pre-coding matrix and the 3rd pre-coding matrix) wherein under different rank is as shown in table 4.
Table 4
When upstream multi-antenna transfer of data adopts 1 code word (codeword), 1 or 2 layer of transmission and RI can be adopted can be 1 or 2, wherein RI be 2 only for retransmit.When upstream multi-antenna transfer of data adopts 2 code words, 2 ~ 4 layers of transmission and RI can be adopted can be 2,3 or 4.Table 5 gives RI and PMI in prior art in DCI, and wherein RI and PMI adopts combined coding.
Table 5
From table 5, when upstream multi-antenna transfer of data adopts 1 code word, RI and PMI (i.e. the combined coding of RI and PMI) totally 512 states; When upstream multi-antenna transfer of data adopts 2 code words, RI and PMI has 352 states.In order to indicate all states when 1 code word or 2 code words, the bit number after RI and PMI combined coding should be 9.
Table 6 gives the PMI in the present embodiment as the RI=2 that base station is sent to via node by RRC signaling in DCI, namely by RRC signalling RI, a PMI (mark represents long-term or the pre-coding matrix of the characteristic of channel in broadband) and another PMI (mark represents the pre-coding matrix of the characteristic of channel of short-term or arrowband) is transmitted by DCI.
Table 6
From table 6, when upstream multi-antenna transfer of data adopts 1 code word, PMI is totally 255 states; When upstream multi-antenna transfer of data adopts 2 code words, PMI has 255 states.In order to indicate all states when 1 code word or 2 code words, the bit number of PMI should be 8, compared with table 5, saves 1 bit of DCI.
Table 7 gives the PMI in the present embodiment as the RI=3 that base station is sent to via node by RRC signaling in DCI, namely by RRC signalling RI, transmit a PMI (mark represents long-term or the pre-coding matrix of the characteristic of channel in broadband) and another PMI (mark represents the pre-coding matrix of the characteristic of channel of short-term or arrowband) by DCI, now only have the situation of two code words.
Table 7
From table 7, PMI has 64 states.In order to indicate all states during 2 code words, the bit number of PMI should be 6, compared with table 5, saves 3 bits of DCI.
Table 8 gives the PMI in the present embodiment as the RI=4 that base station is sent to via node by RRC signaling in DCI, namely by RRC signalling RI, transmit a PMI (mark represents long-term or the pre-coding matrix of the characteristic of channel in broadband) and another PMI (mark represents the pre-coding matrix of the characteristic of channel of short-term or arrowband) by DCI, now only have the situation of two code words.
Table 8
From table 8, PMI has 32 states.In order to indicate all states during 2 code words, the bit number of PMI should be 5, compared with table 5, saves 4 bits of DCI.
Table 9 gives the PMI in the present embodiment as the RI=2 that base station is sent to via node by RRC signaling in DCI, namely by a RRC signalling RI and PMI (mark represents long-term or the pre-coding matrix of the characteristic of channel in broadband), another PMI (mark represents the pre-coding matrix of the characteristic of channel of short-term or arrowband) is transmitted by DCI.
Table 9
From table 9, when upstream multi-antenna transfer of data adopts 1 code word, PMI is totally 16 states; When upstream multi-antenna transfer of data adopts 2 code words, PMI has 16 states.In order to indicate all states when 1 code word or 2 code words, the bit number of PMI should be 4, compared with table 5, saves 5 bits of DCI.
Table 10 gives the PMI in the present embodiment as the RI=3 that base station is sent to via node by RRC signaling in DCI, namely by a RRC signalling RI and PMI (mark represents long-term or the pre-coding matrix of the characteristic of channel in broadband), transmit another PMI (mark represents the pre-coding matrix of the characteristic of channel of short-term or arrowband) by DCI, now only have the situation of two code words.
Table 10
From table 10, PMI has 16 states.In order to indicate all states during 2 code words, the bit number of PMI should be 4, compared with table 5, saves 5 bits of DCI.
Table 11 gives the PMI in the present embodiment as the RI=4 that base station is sent to via node by RRC signaling in DCI, namely by a RRC signalling RI and PMI (mark represents long-term or the pre-coding matrix of the characteristic of channel in broadband), transmit another PMI (mark represents the pre-coding matrix of the characteristic of channel of short-term or arrowband) by DCI, now only have the situation of two code words.
Table 11
From table 11, PMI has 8 states.In order to indicate all states during 2 code words, the bit number of PMI should be 3, compared with table 5, saves 6 bits of DCI.
Technical scheme of the present invention, can be applied to the communication system such as LTE system, lte-a system.Base station wherein can be the eNB in LTE system or lte-a system.
The schematic flow sheet of the processing method of the upstream multi-antenna transfer of data instruction that Fig. 5 provides for another embodiment of the present invention, as shown in Figure 5, the processing method of the upstream multi-antenna transfer of data instruction of the present embodiment can comprise:
501, via node obtains the pre-coding matrix instruction of base station transmission, and is indicated by the order that RRC signaling acquisition base station sends;
502, above-mentioned via node is according to above-mentioned pre-coding matrix instruction and the instruction of above-mentioned order, determines pre-coding matrix.
Because base station and via node are all static, and there is stronger direct path between the two, therefore, the frequency characteristic of channel is comparatively smooth and change is slow, thus the order of upstream multi-antenna transfer of data may be remained unchanged within the longer time.Therefore, base station can without the need to dynamically send to via node for the DCI of uplink scheduling in comprise the order of upstream multi-antenna transfer of data, but in the RRC signaling sent to via node, semi-statically comprise the order of upstream multi-antenna transfer of data.
In the present embodiment, via node obtains the pre-coding matrix instruction that base station sends after selecting to be used for the pre-coding matrix of upstream multi-antenna transfer of data, and indicated by the order that RRC signaling acquisition base station sends after selecting to be used for the order of upstream multi-antenna transfer of data, can to avoid in prior art sending order instruction by DCI during subscriber equipment under base station scheduling via node and the more problem of the bit number taken in DCI that causes, thus reduce the expense of DCI.
Be understandable that: the code book of upstream multi-antenna transfer of data can adopt two kinds of codebook structures, one is single codebook structure (namely via node utilizes a pre-coding matrix to carry out upstream multi-antenna transfer of data), and another kind is two codebook structure (i.e. via node utilize two pre-coding matrixes to construct final pre-coding matrix carry out upstream multi-antenna transfer of data).
Alternatively, if the code book of upstream multi-antenna transfer of data adopts single codebook structure (namely via node utilizes a pre-coding matrix to carry out upstream multi-antenna transfer of data), so further, the pre-coding matrix instruction that the above-mentioned base station that the via node in the present embodiment obtains sends can comprise the first pre-coding matrix instruction.Correspondingly, via node can also obtain the first pre-coding matrix instruction of above-mentioned base station transmission further by a DCI or above-mentioned RRC signaling.
Alternatively, if the code book of upstream multi-antenna transfer of data adopts two codebook structure (i.e. via node utilize two pre-coding matrixes to construct final pre-coding matrix carry out upstream multi-antenna transfer of data), so further, the pre-coding matrix instruction that the above-mentioned base station that the via node in the present embodiment obtains sends can comprise the second pre-coding matrix instruction and the instruction of the 3rd pre-coding matrix; Correspondingly, via node can also obtain the second pre-coding matrix instruction and the instruction of the 3rd pre-coding matrix of the transmission of above-mentioned base station further by the 2nd DCI, or the second pre-coding matrix instruction of above-mentioned base station transmission can also be obtained by above-mentioned RRC signaling, and obtain the 3rd pre-coding matrix instruction by the 3rd DCI.
Wherein, above-mentioned second pre-coding matrix may be used for representing the long-term characteristic of channel, then above-mentioned 3rd pre-coding matrix may be used for the characteristic of channel representing short-term; Or
Above-mentioned second pre-coding matrix may be used for the characteristic of channel representing broadband, then above-mentioned 3rd pre-coding matrix may be used for the characteristic of channel representing arrowband; Or
Above-mentioned second pre-coding matrix may be used for representing the characteristic of channel that is long-term and broadband, then above-mentioned 3rd pre-coding matrix may be used for representing at least one in the characteristic of channel of short-term and the characteristic of channel of arrowband.
Illustrate respectively further below by the situation of two other embodiment to above-mentioned two kinds of code books.
The schematic flow sheet of the processing method of the upstream multi-antenna transfer of data instruction that Fig. 6 provides for another embodiment of the present invention, the code book that the present embodiment is applicable to upstream multi-antenna transfer of data adopts the situation of single codebook structure.As shown in Figure 6, the processing method of the upstream multi-antenna transfer of data instruction of the present embodiment can comprise:
601, via node obtains the order instruction of base station transmission by RRC signaling;
602, above-mentioned via node indicates according to above-mentioned order, determines the order of above-mentioned order sign;
603, above-mentioned via node obtains the pre-coding matrix instruction of above-mentioned base station transmission by DCI;
604, the above-mentioned pre-coding matrix that above-mentioned via node obtains according to the sum of ranks determined indicates, and determines pre-coding matrix.
Detailed description can see the related content of the table 1 ~ table 3 in embodiment corresponding to Fig. 1.
In the present embodiment, code book for upstream multi-antenna transfer of data adopts the situation of single codebook structure, the order instruction that via node is sent after selecting to be used for the order of upstream multi-antenna transfer of data by RRC signaling acquisition base station, further by the pre-coding matrix instruction that DCI acquisition base station sends after selecting to be used for the pre-coding matrix of upstream multi-antenna transfer of data, can to avoid in prior art sending order instruction by DCI during subscriber equipment under base station scheduling via node and the more problem of the bit number taken in DCI that causes, thus reduce the expense of DCI.
The schematic flow sheet of the processing method of the upstream multi-antenna transfer of data instruction that Fig. 7 provides for another embodiment of the present invention, the present embodiment is applicable to the situation of the two codebook structure of code book employing of upstream multi-antenna transfer of data.As shown in Figure 7, the processing method of the upstream multi-antenna transfer of data instruction of the present embodiment can comprise:
701, via node obtains the order instruction of base station transmission by RRC signaling;
702, above-mentioned via node indicates according to above-mentioned order, determines the order of above-mentioned order sign;
703, above-mentioned via node obtains two pre-coding matrixes instructions of above-mentioned base station transmission by DCI;
Wherein, the pre-coding matrix of a pre-coding matrix sign is for representing long-term or the characteristic of channel in broadband, be designated as the first pre-coding matrix instruction, and the pre-coding matrix of another pre-coding matrix sign is for representing the characteristic of channel of short-term or arrowband, be designated as the second pre-coding matrix instruction.
704, two pre-coding matrixes that above-mentioned via node obtains according to the sum of ranks determined indicate, and determine pre-coding matrix, i.e. the pre-coding matrix of the first pre-coding matrix sign and the pre-coding matrix of the second pre-coding matrix sign.
In the present embodiment, code book for upstream multi-antenna transfer of data adopts the situation of two codebook structure, the order instruction that via node is sent after selecting to be used for the order of upstream multi-antenna transfer of data by RRC signaling acquisition base station, the the first pre-coding matrix instruction sent after selecting to be used for two pre-coding matrixes of upstream multi-antenna transfer of data further by DCI acquisition base station and the instruction of the second pre-coding matrix, can to avoid in prior art sending order instruction by DCI during subscriber equipment under base station scheduling via node and the more problem of the bit number taken in DCI that causes, thus reduce the expense of DCI.
The schematic flow sheet of the processing method of the upstream multi-antenna transfer of data instruction that Fig. 8 provides for another embodiment of the present invention, the present embodiment is applicable to the situation of the two codebook structure of code book employing of upstream multi-antenna transfer of data.As shown in Figure 8, the processing method of the upstream multi-antenna transfer of data instruction of the present embodiment can comprise:
801, via node obtains order instruction and a pre-coding matrix instruction of base station transmission by RRC signaling;
Wherein, the pre-coding matrix of a pre-coding matrix sign, for representing long-term or the characteristic of channel in broadband, is designated as the first pre-coding matrix instruction,
802, above-mentioned via node indicates according to above-mentioned order, determines the order of above-mentioned order sign, and according to above-mentioned order instruction and above-mentioned first pre-coding matrix instruction, determines a pre-coding matrix;
803, above-mentioned via node obtains another pre-coding matrix instruction of above-mentioned base station transmission by DCI;
Wherein, the pre-coding matrix of another pre-coding matrix sign, for representing the characteristic of channel of short-term or arrowband, is designated as the second pre-coding matrix instruction.
804, the second pre-coding matrix that above-mentioned via node obtains according to the sum of ranks determined indicates, and determines another pre-coding matrix.
In the present embodiment, code book for upstream multi-antenna transfer of data adopts the situation of two codebook structure, via node is indicated and the first precoding instruction by the order that RRC signaling acquisition base station sends after selecting to be used for sum of ranks pre-coding matrix of upstream multi-antenna transfer of data, further by the second pre-coding matrix instruction that DCI acquisition base station sends after selecting to be used for another pre-coding matrix of upstream multi-antenna transfer of data, can to avoid in prior art sending order instruction by DCI during subscriber equipment under base station scheduling via node and the more problem of the bit number taken in DCI that causes, thus reduce further the expense of DCI.
Detailed description can see the related content of table 5 ~ table 11.
Technical scheme of the present invention, can be applied to the communication system such as LTE system, lte-a system.Base station wherein can be the eNB in LTE system or lte-a system.
It should be noted that: for aforesaid each embodiment of the method, in order to simple description, therefore it is all expressed as a series of combination of actions, but those skilled in the art should know, the present invention is not by the restriction of described sequence of movement, because according to the present invention, some step can adopt other orders or carry out simultaneously.Secondly, those skilled in the art also should know, the embodiment described in specification all belongs to preferred embodiment, and involved action and module might not be that the present invention is necessary.
In the above-described embodiments, the description of each embodiment is all emphasized particularly on different fields, in certain embodiment, there is no the part described in detail, can see the associated description of other embodiments.
The structural representation of the processing unit of the upstream multi-antenna transfer of data instruction that Fig. 9 provides for another embodiment of the present invention, as shown in Figure 9, the processing unit of the upstream multi-antenna transfer of data instruction of the present embodiment can comprise selected cell 91 and transmitting element 92.Wherein, selected cell 91 is for selecting order for upstream multi-antenna transfer of data and pre-coding matrix; Transmitting element 92 indicates for the pre-coding matrix that the pre-coding matrix to the selection of via node transmission selected cell 91 is corresponding, and indicated to the order that the order of above-mentioned via node transmission selected cell 91 selection is corresponding by RRC signaling, determine pre-coding matrix to make above-mentioned via node according to above-mentioned pre-coding matrix instruction and the instruction of above-mentioned order.
The processing unit of the upstream multi-antenna transfer of data instruction that in the embodiment that above-mentioned Fig. 1 is corresponding, the function of base station can be provided by the present embodiment realizes.
Alternatively, the pre-coding matrix that the selected cell 91 in the present embodiment is selected can comprise the first pre-coding matrix; Correspondingly, transmitting element 92 can also indicate to the pre-coding matrix that the first pre-coding matrix of above-mentioned via node transmission selected cell 91 selection is corresponding further by the first Downlink Control Information or above-mentioned RRC signaling.
Alternatively, the pre-coding matrix that the selected cell 91 in the present embodiment is selected can comprise the second pre-coding matrix and the 3rd pre-coding matrix; Correspondingly, transmitting element 92 can also indicate to the pre-coding matrix that the second pre-coding matrix of above-mentioned via node transmission selected cell 91 selection is corresponding further by the second Downlink Control Information, and the pre-coding matrix instruction that the 3rd pre-coding matrix is corresponding; Or can also indicate to the pre-coding matrix that the second pre-coding matrix of above-mentioned via node transmission selected cell 91 selection is corresponding further by above-mentioned RRC signaling, and be indicated to the pre-coding matrix that the 3rd pre-coding matrix of above-mentioned via node transmission selected cell 91 selection is corresponding by the 3rd Downlink Control Information.
Wherein, above-mentioned second pre-coding matrix may be used for representing the long-term characteristic of channel, then above-mentioned 3rd pre-coding matrix may be used for the characteristic of channel representing short-term; Or
Above-mentioned second pre-coding matrix may be used for the characteristic of channel representing broadband, then above-mentioned 3rd pre-coding matrix may be used for the characteristic of channel representing arrowband; Or
Above-mentioned second pre-coding matrix may be used for representing the characteristic of channel that is long-term and broadband, then above-mentioned 3rd pre-coding matrix may be used for representing at least one in the characteristic of channel of short-term and the characteristic of channel of arrowband.
In the present embodiment, base station is after selected cell selects to be used for the order of upstream multi-antenna transfer of data and pre-coding matrix, indicated to the pre-coding matrix that the pre-coding matrix of via node transmission selected cell selection is corresponding by transmitting element, and indicated to the order that the order of via node transmission selected cell selection is corresponding by RRC signaling, can to avoid in prior art sending order instruction by DCI during subscriber equipment under base station scheduling via node and the more problem of the bit number taken in DCI that causes, thus reduce the expense of DCI.
The structural representation of the processing unit of the upstream multi-antenna transfer of data instruction that Figure 10 provides for another embodiment of the present invention, as shown in Figure 10, the processing unit of the upstream multi-antenna transfer of data instruction of the present embodiment can comprise acquisition unit 1001 and determining unit 1002.Wherein, obtain unit 1001 for obtaining the pre-coding matrix instruction of base station transmission, and indicated by the order that RRC signaling acquisition base station sends; Determining unit 1002, for according to the pre-coding matrix instruction and the order instruction that obtain unit 1001 acquisition, determines pre-coding matrix.
The processing unit of the upstream multi-antenna transfer of data instruction that in the embodiment that above-mentioned Fig. 2 is corresponding, the function of base station can be provided by the present embodiment realizes.
Alternatively, if the code book of upstream multi-antenna transfer of data adopts single codebook structure (namely via node utilizes a pre-coding matrix to carry out upstream multi-antenna transfer of data), so further, the pre-coding matrix instruction that the above-mentioned base station that the acquisition unit 1001 in the present embodiment obtains sends can comprise the first pre-coding matrix instruction.Correspondingly, unit 1001 specifically can obtain the transmission of above-mentioned base station the first pre-coding matrix instruction by a DCI or above-mentioned RRC signaling is obtained.
Alternatively, if the code book of upstream multi-antenna transfer of data adopts two codebook structure (i.e. via node utilize two pre-coding matrixes to construct final pre-coding matrix carry out upstream multi-antenna transfer of data), so further, the pre-coding matrix instruction that the above-mentioned base station that the acquisition unit 1001 in the present embodiment obtains sends can comprise the second pre-coding matrix instruction and the instruction of the 3rd pre-coding matrix; Correspondingly, obtain unit 1001 specifically can obtain the transmission of above-mentioned base station the second pre-coding matrix instruction and the instruction of the 3rd pre-coding matrix by the 2nd DCI, or the second pre-coding matrix instruction of above-mentioned base station transmission can also be obtained by above-mentioned RRC signaling, and obtain the 3rd pre-coding matrix instruction by the 3rd DCI.
Wherein, above-mentioned second pre-coding matrix may be used for representing the long-term characteristic of channel, then above-mentioned 3rd pre-coding matrix may be used for the characteristic of channel representing short-term; Or
Above-mentioned second pre-coding matrix may be used for the characteristic of channel representing broadband, then above-mentioned 3rd pre-coding matrix may be used for the characteristic of channel representing arrowband; Or
Above-mentioned second pre-coding matrix may be used for representing the characteristic of channel that is long-term and broadband, then above-mentioned 3rd pre-coding matrix may be used for representing at least one in the characteristic of channel of short-term and the characteristic of channel of arrowband.
In the present embodiment, the pre-coding matrix instruction that via node sends after selecting to be used for the pre-coding matrix of upstream multi-antenna transfer of data by obtaining unit acquisition base station, and indicated by the order that RRC signaling acquisition base station sends after selecting to be used for the order of upstream multi-antenna transfer of data, determining unit can be indicated according to the pre-coding matrix instruction and order obtaining unit acquisition, determine pre-coding matrix, can to avoid in prior art sending order instruction by DCI during subscriber equipment under base station scheduling via node and the more problem of the bit number taken in DCI that causes, thus reduce the expense of DCI.
Those skilled in the art can be well understood to, and for convenience and simplicity of description, the system of foregoing description, the specific works process of device and unit, with reference to the corresponding process in preceding method embodiment, can not repeat them here.
In several embodiments that the application provides, should be understood that, disclosed system, apparatus and method, can realize by another way.Such as, device embodiment described above is only schematic, such as, the division of described unit, be only a kind of logic function to divide, actual can have other dividing mode when realizing, such as multiple unit or assembly can in conjunction with or another system can be integrated into, or some features can be ignored, or do not perform.Another point, shown or discussed coupling each other or direct-coupling or communication connection can be by some interfaces, and the indirect coupling of device or unit or communication connection can be electrical, machinery or other form.
The described unit illustrated as separating component or can may not be and physically separates, and the parts as unit display can be or may not be physical location, namely can be positioned at a place, or also can be distributed in multiple network element.Some or all of unit wherein can be selected according to the actual needs to realize the object of the present embodiment scheme.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, also can be that the independent physics of unit exists, also can two or more unit in a unit integrated.Above-mentioned integrated unit both can adopt the form of hardware to realize, and the form that hardware also can be adopted to add SFU software functional unit realizes.
The above-mentioned integrated unit realized with the form of SFU software functional unit, can be stored in a computer read/write memory medium.Above-mentioned SFU software functional unit is stored in a storage medium, comprising some instructions in order to make a computer equipment (can be personal computer, server, or the network equipment etc.) perform the part steps of method described in each embodiment of the present invention.And aforesaid storage medium comprises: USB flash disk, portable hard drive, read-only memory (Read-OnlyMemory, be called for short ROM), random access memory (RandomAccessMemory, be called for short RAM), magnetic disc or CD etc. various can be program code stored medium.
Last it is noted that above embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (4)
1. a processing method for upstream multi-antenna transfer of data instruction, is characterized in that, comprising:
The base station selected order for upstream multi-antenna transfer of data and pre-coding matrix;
Described base station sends pre-coding matrix instruction corresponding to the pre-coding matrix of described selection to via node, and send order instruction corresponding to the order of described selection by radio resource control RRC signaling to described via node, determine pre-coding matrix to make described via node according to described pre-coding matrix instruction and the instruction of described order;
Wherein, described pre-coding matrix comprises the second pre-coding matrix and the 3rd pre-coding matrix, and wherein, described second pre-coding matrix is for representing the long-term characteristic of channel, and described 3rd pre-coding matrix is for representing the characteristic of channel of short-term;
Described base station sends pre-coding matrix instruction corresponding to the pre-coding matrix of described selection to via node, comprising:
Described base station sends pre-coding matrix instruction corresponding to the second pre-coding matrix of described selection by the second Downlink Control Information to described via node, and the pre-coding matrix instruction that the 3rd pre-coding matrix is corresponding; Or
Described base station sends pre-coding matrix instruction corresponding to the second pre-coding matrix of described selection by described RRC signaling to described via node, and sends pre-coding matrix instruction corresponding to the 3rd pre-coding matrix of described selection by the 3rd Downlink Control Information to described via node;
Or,
Described pre-coding matrix comprises the second pre-coding matrix and the 3rd pre-coding matrix, and wherein, described second pre-coding matrix is for representing the characteristic of channel in broadband, and described 3rd pre-coding matrix is for representing the characteristic of channel of arrowband;
Described base station sends pre-coding matrix instruction corresponding to the pre-coding matrix of described selection to via node, comprising:
Described base station sends pre-coding matrix instruction corresponding to the second pre-coding matrix of described selection by the second Downlink Control Information to described via node, and the pre-coding matrix instruction that the 3rd pre-coding matrix is corresponding; Or
Described base station sends pre-coding matrix instruction corresponding to the second pre-coding matrix of described selection by described RRC signaling to described via node, and sends pre-coding matrix instruction corresponding to the 3rd pre-coding matrix of described selection by the 3rd Downlink Control Information to described via node;
Or,
Described pre-coding matrix comprises the second pre-coding matrix and the 3rd pre-coding matrix, wherein, described second pre-coding matrix for representing long-term and the characteristic of channel in broadband, described 3rd pre-coding matrix in the characteristic of channel of the characteristic of channel and arrowband that represent short-term at least one;
Described base station sends pre-coding matrix instruction corresponding to the pre-coding matrix of described selection to via node, comprising:
Described base station sends pre-coding matrix instruction corresponding to the second pre-coding matrix of described selection by the second Downlink Control Information to described via node, and the pre-coding matrix instruction that the 3rd pre-coding matrix is corresponding; Or
Described base station sends pre-coding matrix instruction corresponding to the second pre-coding matrix of described selection by described RRC signaling to described via node, and sends pre-coding matrix instruction corresponding to the 3rd pre-coding matrix of described selection by the 3rd Downlink Control Information to described via node.
2. a processing method for upstream multi-antenna transfer of data instruction, is characterized in that, comprising:
Via node obtains the pre-coding matrix instruction of base station transmission, and is indicated by the order that radio resource control RRC signaling acquisition base station sends;
Described via node, according to described pre-coding matrix instruction and the instruction of described order, determines pre-coding matrix;
Wherein, described pre-coding matrix comprises the second pre-coding matrix instruction and the instruction of the 3rd pre-coding matrix, wherein, the pre-coding matrix of described second pre-coding matrix sign is for representing the long-term characteristic of channel, and the pre-coding matrix of described 3rd pre-coding matrix sign is for representing the characteristic of channel of short-term;
Described via node obtains the pre-coding matrix instruction that base station sends, and comprising:
Described via node obtains the second pre-coding matrix instruction and the instruction of the 3rd pre-coding matrix of described base station transmission by the second Downlink Control Information; Or
Described via node obtains the second pre-coding matrix instruction of described base station transmission by described RRC signaling, and obtains the 3rd pre-coding matrix instruction by the 3rd Downlink Control Information;
Or, described pre-coding matrix comprises the second pre-coding matrix instruction and the instruction of the 3rd pre-coding matrix, wherein, the pre-coding matrix of described second pre-coding matrix sign is for representing the characteristic of channel in broadband, and the pre-coding matrix of described 3rd pre-coding matrix sign is for representing the characteristic of channel of arrowband;
Described via node obtains the pre-coding matrix instruction that base station sends, and comprising:
Described via node obtains the second pre-coding matrix instruction and the instruction of the 3rd pre-coding matrix of described base station transmission by the second Downlink Control Information; Or
Described via node obtains the second pre-coding matrix instruction of described base station transmission by described RRC signaling, and obtains the 3rd pre-coding matrix instruction by the 3rd Downlink Control Information;
Or, described pre-coding matrix comprises the second pre-coding matrix instruction and the instruction of the 3rd pre-coding matrix, wherein, the pre-coding matrix of described second pre-coding matrix sign for representing the characteristic of channel of long-term and broadband, the pre-coding matrix of described 3rd pre-coding matrix sign in the characteristic of channel of the characteristic of channel and arrowband that represent short-term at least one; Described via node obtains the pre-coding matrix instruction that base station sends, and comprising:
Described via node obtains the second pre-coding matrix instruction and the instruction of the 3rd pre-coding matrix of described base station transmission by the second Downlink Control Information; Or
Described via node obtains the second pre-coding matrix instruction of described base station transmission by described RRC signaling, and obtains the 3rd pre-coding matrix instruction by the 3rd Downlink Control Information.
3. a processing unit for upstream multi-antenna transfer of data instruction, is characterized in that, comprising:
Selected cell, for selecting order for upstream multi-antenna transfer of data and pre-coding matrix;
Transmitting element, for the pre-coding matrix instruction that the pre-coding matrix sending the selection of described selected cell to via node is corresponding, and send order instruction corresponding to order that described selected cell selects by radio resource control RRC signaling to described via node, determine pre-coding matrix to make described via node according to the instruction of described pre-coding matrix and the instruction of described order;
Wherein, described pre-coding matrix comprises the second pre-coding matrix and the 3rd pre-coding matrix, and wherein, described second pre-coding matrix is for representing the long-term characteristic of channel, and described 3rd pre-coding matrix is for representing the characteristic of channel of short-term;
Described transmitting element, specifically for by the second Downlink Control Information to described via node send described selected cell select the second pre-coding matrix corresponding pre-coding matrix instruction, and the 3rd pre-coding matrix corresponding pre-coding matrix instruction; Or
By described RRC signaling to described via node send described selected cell select the second pre-coding matrix corresponding pre-coding matrix instruction, and by the 3rd Downlink Control Information to described via node send described selected cell select the 3rd pre-coding matrix corresponding pre-coding matrix instruction;
Or described pre-coding matrix comprises the second pre-coding matrix and the 3rd pre-coding matrix, wherein, described second pre-coding matrix is for representing the characteristic of channel in broadband, and described 3rd pre-coding matrix is for representing the characteristic of channel of arrowband;
Described transmitting element, specifically for by the second Downlink Control Information to described via node send described selected cell select the second pre-coding matrix corresponding pre-coding matrix instruction, and the 3rd pre-coding matrix corresponding pre-coding matrix instruction; Or
By described RRC signaling to described via node send described selected cell select the second pre-coding matrix corresponding pre-coding matrix instruction, and by the 3rd Downlink Control Information to described via node send described selected cell select the 3rd pre-coding matrix corresponding pre-coding matrix instruction;
Or, described pre-coding matrix comprises the second pre-coding matrix and the 3rd pre-coding matrix, wherein, described second pre-coding matrix for representing long-term and the characteristic of channel in broadband, described 3rd pre-coding matrix in the characteristic of channel of the characteristic of channel and arrowband that represent short-term at least one;
Described transmitting element, specifically for by the second Downlink Control Information to described via node send described selected cell select the second pre-coding matrix corresponding pre-coding matrix instruction, and the 3rd pre-coding matrix corresponding pre-coding matrix instruction; Or
By described RRC signaling to described via node send described selected cell select the second pre-coding matrix corresponding pre-coding matrix instruction, and by the 3rd Downlink Control Information to described via node send described selected cell select the 3rd pre-coding matrix corresponding pre-coding matrix instruction.
4. a processing unit for upstream multi-antenna transfer of data instruction, is characterized in that, comprising:
Obtaining unit, for obtaining the pre-coding matrix instruction of base station transmission, and being indicated by the order that radio resource control RRC signaling acquisition base station sends;
Determining unit, the described pre-coding matrix for obtaining according to described acquisition unit indicates and the instruction of described order, determines pre-coding matrix;
Wherein, described pre-coding matrix comprises the second pre-coding matrix instruction and the instruction of the 3rd pre-coding matrix, wherein, the pre-coding matrix of described second pre-coding matrix sign is for representing the long-term characteristic of channel, and the pre-coding matrix of described 3rd pre-coding matrix sign is for representing the characteristic of channel of short-term;
Described acquisition unit is specifically for obtaining the second pre-coding matrix instruction and the instruction of the 3rd pre-coding matrix of the transmission of described base station by the second Downlink Control Information; Or
Obtained the second pre-coding matrix instruction of described base station transmission by described RRC signaling, and obtain the 3rd pre-coding matrix instruction by the 3rd Downlink Control Information;
Or,
Described pre-coding matrix comprises the second pre-coding matrix instruction and the instruction of the 3rd pre-coding matrix, wherein, the pre-coding matrix of described second pre-coding matrix sign is for representing the characteristic of channel in broadband, and the pre-coding matrix of described 3rd pre-coding matrix sign is for representing the characteristic of channel of arrowband;
Described acquisition unit, the second pre-coding matrix sent specifically for being obtained described base station by the second Downlink Control Information is indicated and the instruction of the 3rd pre-coding matrix; Or
Obtained the second pre-coding matrix instruction of described base station transmission by described RRC signaling, and obtain the 3rd pre-coding matrix instruction by the 3rd Downlink Control Information;
Or,
Described pre-coding matrix comprises the second pre-coding matrix instruction and the instruction of the 3rd pre-coding matrix, wherein, the pre-coding matrix of described second pre-coding matrix sign for representing the characteristic of channel of long-term and broadband, the pre-coding matrix of described 3rd pre-coding matrix sign in the characteristic of channel of the characteristic of channel and arrowband that represent short-term at least one;
Described acquisition unit, the second pre-coding matrix sent specifically for being obtained described base station by the second Downlink Control Information is indicated and the instruction of the 3rd pre-coding matrix; Or
Obtained the second pre-coding matrix instruction of described base station transmission by described RRC signaling, and obtain the 3rd pre-coding matrix instruction by the 3rd Downlink Control Information.
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