CN108631844A

CN108631844A - A kind of method, terminal and network side equipment obtaining channel state information

Info

Publication number: CN108631844A
Application number: CN201710183576.XA
Authority: CN
Inventors: 塔玛拉卡·拉盖施; 高秋彬
Original assignee: China Academy of Telecommunications Technology CATT
Current assignee: China Academy of Telecommunications Technology CATT; Datang Mobile Communications Equipment Co Ltd
Priority date: 2017-03-24
Filing date: 2017-03-24
Publication date: 2018-10-09
Anticipated expiration: 2037-03-24
Also published as: WO2018171482A1; CN108631844B

Abstract

The present invention provides a kind of method, terminal and network side equipment obtaining channel state information, and this method includes：Terminal measures the downlink measurement pilot frequency that network side equipment is sent, and reports N number of channel sequence to the network side equipment according to measurement result；The terminal receives the target pre-coding matrix index corresponding with M destination channel order in N number of channel sequence that the network side equipment is sent；The terminal calculates separately corresponding M channel quality index according to the M destination channel order and the corresponding pre-coding matrix of the corresponding target pre-coding matrix index of the M destination channel order.In this way, in non-code book mimo system, network side equipment is that terminal sends PMI corresponding with RI according to the channel sequence RI that terminal reports, it can be ensured that the CQI value that terminal calculates is true and accurate.

Description

A kind of method, terminal and network side equipment obtaining channel state information

Technical field

The present invention relates to field of communication technology, more particularly to a kind of method, terminal and network obtaining channel state information Side apparatus.

Background technology

In MIMO (multiple-input, multiple-output, Multiple-Input Multiple-Output) system, terminal is needed to base station Feeding back channel state information (CSI, Channel State Information), the channel status that base station is reported using terminal Information carries out the precoding of data and adjusts code rate with the current channel circumstance in reflexless terminal.At non-code book MIMO, it is Uplink feedback expense is saved, feeding back precoding matrix does not index PMI (Precoding Matrix Indicator) to terminal.This Sample, terminal can not calculate channel quality index CQI (Channel Quality Indicator) according to PMI.Currently, in LTE In (Long Term Evolution, Long Term Evolution) system, terminal is according to downlink data to send diversity mode transmission Hypothesis under calculate CQI value.It can not the true channel matter of accurate representation however, the CQI obtained based on above-mentioned hypothesis is possible Amount.As it can be seen that the CQI value that the method for obtaining channel state information in existing non-code book mimo system is calculated there are terminal is not accurate enough The problem of.

Invention content

The purpose of the present invention is to provide a kind of method, terminal and network side equipments obtaining channel state information, with solution The not accurate enough problem of the CQI value of terminal calculating certainly in non-code book mimo system.

In order to achieve the above object, the embodiment of the present invention provides a kind of method obtaining channel state information, including：

Terminal measures the downlink measurement pilot frequency that network side equipment is sent, and according to measurement result on the network side equipment It is the integer more than or equal to 1 to report N number of channel sequence, the N；

The terminal receives the corresponding with M destination channel order in N number of channel sequence of the network side equipment transmission Target pre-coding matrix index, the M is integer more than or equal to 1, and the N is more than or equal to M；

The terminal is according to the M destination channel order and the corresponding target precoding square of the M destination channel order Battle array indexes corresponding pre-coding matrix, calculates separately corresponding M channel quality index.

Optionally, the method further includes：

The terminal sends upstream detection pilot frequency to the network side equipment, and the upstream detection pilot frequency is used to supply the net Network side apparatus measures, and determines the corresponding target pre-coding matrix index of the M destination channel order according to measurement result.

Optionally, if the N is equal to 1, the M is equal to 1, and the upstream detection pilot frequency is used to survey for the network side equipment Amount, and the corresponding target pre-coding matrix index of the M destination channel order is determined according to measurement result；

If the N is more than 1, the M is more than or equal to 1, and the upstream detection pilot frequency is used to supply the network side equipment Measure, and M destination channel order in N number of channel sequence determined according to measurement result, and with the M destination channel order Corresponding target pre-coding matrix index.

Optionally, if the network side equipment assume data transfer mode be the first transmission mode, the terminal according to The pre-coding matrix of the M destination channel order and the corresponding target pre-coding matrix index of the M destination channel order, Calculate corresponding M channel quality index.

Optionally, if the data transfer mode of the hypothesis of the network side equipment is the second transmission mode, the M target The number of the corresponding target pre-coding matrix index of channel sequence is Y, and the Y is equal to the positive integer times of M；

The method further includes：

The terminal obtains the corresponding pre-coding matrix cycle side of each destination channel order in the M destination channel order Formula；

The terminal is according to the M destination channel order and the corresponding target precoding square of the M destination channel order The pre-coding matrix of battle array index calculates corresponding M channel quality index, including：

The terminal is according to the M destination channel order, the corresponding target pre-coding matrix rope of the M destination channel order The pre-coding matrix drawn, and the corresponding pre-coding matrix endless form of each destination channel order, calculate separately corresponding M A channel quality index.

Optionally, the method further includes：

The terminal reports the M channel quality to index to the network side equipment, and the M channel quality index is used In the confession network side equipment according to M channel quality index and the M target described in the M destination channel sum of ranks The pre-coding matrix of the corresponding target pre-coding matrix index of channel sequence, to the terminal transmission downlink data.

The embodiment of the present invention also provides a kind of method obtaining channel state information, including：

Network side equipment sends downlink measurement pilot frequency to terminal, and receives N number of channel sequence that the terminal reports, under described Row measures pilot tone and is used to measure for the terminal, and N number of channel sequence is the terminal based on to the downlink measurement pilot frequency Channel sequence determined by measuring, the N are the integer more than or equal to 1；

The network side equipment determines target precoding square corresponding with M destination channel order in N number of channel sequence Battle array index；

The network side equipment sends the target precoding square corresponding with the M destination channel order to the terminal Battle array index, the corresponding target pre-coding matrix index of the M destination channel order is used to calculate for the terminal and the M mesh Mark the corresponding M channel quality index of channel sequence；The M is the integer more than or equal to 1, and the N is more than or equal to M.

Optionally, the method further includes：

The network side equipment receives the upstream detection pilot frequency that the terminal is sent；

The network side equipment determines target precoding square corresponding with M destination channel order in N number of channel sequence Battle array index, including：

The network side equipment measures the upstream detection pilot frequency, and is determined according to measurement result and believed with the M target The corresponding target pre-coding matrix index of road order.

Optionally, if the N is equal to 1, the M is equal to 1, and the network side equipment measures the upstream detection pilot frequency, and Target pre-coding matrix index corresponding with the M destination channel order is determined according to measurement result；

If the N is more than 1, the M is more than or equal to 1, in the network side equipment determination and N number of channel sequence The corresponding target pre-coding matrix index of M destination channel order, including：

The network side equipment measures the upstream detection pilot frequency, and is determined in N number of channel sequence according to measurement result M destination channel order, and target pre-coding matrix index corresponding with the M destination channel order.

Optionally, if the data transfer mode of the network side equipment is the first transmission mode, the network side equipment is true Fixed target pre-coding matrix index corresponding with M destination channel order in N number of channel sequence.

Optionally, if the data transfer mode of the network side equipment is the second transmission mode, the M destination channel order The number of corresponding target pre-coding matrix index is Y, and the Y is equal to the positive integer times of M；

It is corresponding that the network side equipment to the terminal sends each destination channel order in the M destination channel order Pre-coding matrix endless form corresponding to target pre-coding matrix index, the corresponding precoding square of each destination channel order Battle array endless form is used to calculate corresponding M channel quality index for the terminal.

Optionally, the method further includes：

The network side equipment receives the M channel quality index that the terminal reports；

The network side equipment is according to M channel quality index described in the M destination channel sum of ranks and the M The pre-coding matrix of the corresponding target pre-coding matrix index of destination channel order, to the terminal transmission downlink data.

The embodiment of the present invention also provides a kind of terminal, including：

Sending module, the downlink measurement pilot frequency for measuring network side equipment transmission, and according to measurement result to the net It is the integer more than or equal to 1 that network side apparatus, which reports N number of channel sequence, the N,；

Receiving module, for receiving that the network side equipment sends and M destination channel order in N number of channel sequence Corresponding target pre-coding matrix index, the M are the integer more than or equal to 1, and the N is more than or equal to M；

Computing module, for pre- according to the M destination channel order and the corresponding target of the M destination channel order Encoder matrix indexes corresponding pre-coding matrix, calculates separately corresponding M channel quality index.

Optionally, the sending module is used to send upstream detection pilot frequency, the uplink detection to the network side equipment Pilot tone is used to measure for the network side equipment, and determines that the corresponding target of the M destination channel order is pre- according to measurement result Encoder matrix indexes.

Optionally, if the data transfer mode that the network side equipment is assumed is the first transmission mode, the computing module For prelisting according to the M destination channel order and the corresponding target pre-coding matrix index of M destination channel order Code matrix calculates corresponding M channel quality index.

Further include acquisition module, for obtaining, each destination channel order in the M destination channel order is corresponding to prelist Code matrix circular mode；

The computing module is used for according to the M destination channel order, and the corresponding target of the M destination channel order prelists The pre-coding matrix of code matrix index, and the corresponding pre-coding matrix endless form of each destination channel order, are counted respectively Calculate corresponding M channel quality index.

Optionally, the sending module is used to report the M channel quality to index to the network side equipment, the M A channel quality index is used to be indexed according to M channel quality described in the M destination channel sum of ranks for the network side equipment, And the pre-coding matrix of the corresponding target pre-coding matrix index of the M destination channel order, to the terminal transmission downlink Data.

The present embodiment also provides a kind of network side equipment, including：

Receiving module for sending downlink measurement pilot frequency to terminal, and receives N number of channel sequence that the terminal reports, institute Downlink measurement pilot frequency is stated for measuring for the terminal, N number of channel sequence is the terminal based on being led to the downlink measurement Channel sequence determined by the measurement of frequency, the N are the integer more than or equal to 1；

Determining module, for determining target pre-coding matrix corresponding with M destination channel order in N number of channel sequence Index；

Sending module, for sending the target precoding square corresponding with the M destination channel order to the terminal Battle array index, the corresponding target pre-coding matrix index of the M destination channel order is used to calculate for the terminal and the M mesh Mark the corresponding M channel quality index of channel sequence；The M is the integer more than or equal to 1, and the N is more than or equal to M.

Optionally, the receiving module is used to receive the upstream detection pilot frequency that the terminal is sent；

The determining module determines and the M target for measuring the upstream detection pilot frequency, and according to measurement result The corresponding target pre-coding matrix index of channel sequence.

Optionally, if the N is equal to 1, the M is equal to 1, and the determining module is used to measure the upstream detection pilot frequency, And target pre-coding matrix index corresponding with the M destination channel order is determined according to measurement result；

If the N is more than 1, the M is more than or equal to 1, and the determining module is used to measure the upstream detection pilot frequency, And M destination channel order in N number of channel sequence is determined according to measurement result, and it is corresponding with the M destination channel order Target pre-coding matrix index.

Optionally, if the data transfer mode of the network side equipment is the first transmission mode, the determining module is used for Determine target pre-coding matrix index corresponding with M destination channel order in N number of channel sequence.

The sending module is used to send each destination channel order in the M destination channel order to the terminal and correspond to Target pre-coding matrix index corresponding to pre-coding matrix endless form, the corresponding precoding of each destination channel order Matrix circular mode is used to calculate corresponding M channel quality index for the terminal.

Optionally, the receiving module is used to receive the M channel quality index that the terminal reports；

The sending module is used for according to M channel quality index and the M described in the M destination channel sum of ranks The pre-coding matrix of the corresponding target pre-coding matrix index of a destination channel order, to the terminal transmission downlink data.

The embodiment of the present invention also provides a kind of terminal, including：Processor, transceiver, memory, user interface and bus connect Mouthful, wherein：

The processor executes end side pair provided in an embodiment of the present invention for reading the program in the memory Step in the method for the acquisition channel state information answered.

The embodiment of the present invention also provides a kind of network side equipment, including：Processor, transceiver, memory, user interface and Bus interface, wherein：

The processor executes network side provided in an embodiment of the present invention and sets for reading the program in the memory For the step in the corresponding method for obtaining channel state information in side.

The embodiment of the present invention also provides a kind of computer readable storage medium, is stored thereon with computer program, the meter Calculation machine program realizes the corresponding side for obtaining channel state information in end side provided in an embodiment of the present invention when being executed by processor Step in method.

The embodiment of the present invention also provides a kind of computer readable storage medium, is stored thereon with computer program, the meter Calculation machine program realizes network side equipment provided in an embodiment of the present invention corresponding acquisition channel state information when being executed by processor Method in step.

The above-mentioned technical proposal of the present invention at least has the advantages that：

The embodiment of the present invention, terminal measure the downlink measurement pilot frequency that network side equipment is sent, and according to measurement result to institute It states network side equipment and reports N number of channel sequence；The terminal receive that the network side equipment sends in N number of channel sequence The corresponding target pre-coding matrix index of M destination channel order；The terminal is according to the M destination channel order and the M The corresponding pre-coding matrix of the corresponding target pre-coding matrix index of a destination channel order, calculates separately corresponding M channel matter Amount index.In this way, in non-code book mimo system, network side equipment is terminal transmission and RI according to the channel sequence RI that terminal reports Corresponding PMI, it can be ensured that the CQI value that terminal calculates is true and accurate.Also, it is to use network side equipment that terminal, which calculates CQI, Indicated PMI, terminal by the CQI feedback of calculating to network side equipment when, CQI that network side equipment can be made to feed back terminal Reach and understands consistent advantageous effect.

Description of the drawings

Fig. 1 is the applicable schematic network structure of the embodiment of the present invention；

Fig. 2 is a kind of flow diagram of method obtaining channel state information provided in an embodiment of the present invention；

Fig. 3 is a kind of structural schematic diagram of the Anneta module of terminal provided in an embodiment of the present invention；

Fig. 4 is a kind of schematic diagram of data transfer mode provided in an embodiment of the present invention；

Fig. 5 is the schematic diagram of another data transfer mode provided in an embodiment of the present invention；

Fig. 6 is the flow diagram of another method for obtaining channel state information provided in an embodiment of the present invention；

Fig. 7 is a kind of one of structural schematic diagram of terminal provided in an embodiment of the present invention；

Fig. 8 is a kind of second structural representation of terminal provided in an embodiment of the present invention；

Fig. 9 is a kind of structural schematic diagram of network side equipment provided in an embodiment of the present invention；

Figure 10 is the structural schematic diagram of another terminal provided in an embodiment of the present invention；

Figure 11 is the structural schematic diagram of another network side equipment provided in an embodiment of the present invention.

Specific implementation mode

To keep the technical problem to be solved in the present invention, technical solution and advantage clearer, below in conjunction with attached drawing and tool Body embodiment is described in detail.

Referring to Fig. 1, Fig. 1 is the applicable schematic network structure of the embodiment of the present invention, as shown in Figure 1, including terminal 11 With network side equipment 12, wherein terminal 11 can be mobile phone, tablet computer (Tablet Personal Computer), above-knee Type computer (Laptop Computer), personal digital assistant (personal digital assistant, abbreviation PDA), movement The end sides such as Internet device (Mobile Internet Device, MID) or wearable device (Wearable Device) are set It is standby, it should be noted that not limit the concrete type of terminal 11 in embodiments of the present invention.Terminal 11 can be set with network side Standby 12 establish communication, wherein the network in attached drawing can indicate that wirelessly foundation communicates terminal 11 with network side equipment 12, network side Equipment 12 can be evolved base station (eNB, evolved Node B) either other base stations or can be access point apparatus etc. Network side equipment, it should be noted that do not limit the concrete type of network side equipment 12 in embodiments of the present invention.

With reference to figure 2, the embodiment of the present invention provides the method for obtaining channel state information, as shown in Fig. 2, including following step Suddenly：

201, terminal measures the downlink measurement pilot frequency that network side equipment is sent, and is set to the network side according to measurement result It is the integer more than or equal to 1 for N number of channel sequence, the N is reported；

202, the terminal receive that the network side equipment sends with M destination channel order in N number of channel sequence Corresponding target pre-coding matrix index, the M are the integer more than or equal to 1, and the N is more than or equal to M；

203, the terminal prelists according to the M destination channel order and the corresponding target of the M destination channel order The pre-coding matrix of code matrix index calculates separately corresponding M channel quality index.

Under non-code book MIMO operating modes, in order to save feedback overhead, terminal is only to network side equipment feedback channel order (RI, Rank Indication) and CQI, but terminal does not feed back PMI to network side equipment.Since terminal does not feed back PMI, The CQI that terminal is calculated may not be able to accurately represent true channel quality, and network side equipment possibly can not know end Hold the specific calculating process of the CQI of feedback.Become in terms of two above and obtains channel status letter in current non-code book mimo system The problem of ceasing institute's urgent need to resolve.

In view of the above problems, the embodiment of the present invention provides a kind of acquisition channel status letter being adapted to non-code book mimo system The method of breath.

In the embodiment of the present invention, for step 201, network side equipment can send downlink measurement pilot frequency CSI- to terminal RS, terminal can carry out the downlink measurement pilot frequency received after the downlink measurement pilot frequency for receiving network side equipment transmission It measures, and N number of RI can be obtained according to the result of measurement.After terminal obtains N number of RI, terminal can report N number of RI To network side equipment.

Wherein, downlink measurement pilot frequency can be used for the measurement of channel state information, wherein channel state information includes but not It is limited at least one of information such as CQI, PMI and RI.

Wherein, the downlink measurement pilot frequency that network side equipment is sent to terminal can be one, can also be multiple.If network Side apparatus has sent multiple downlink measurement pilot frequencies to terminal, and terminal can measure any one or any number of downlinks therein Pilot tone measures.For example, network side equipment has sent 4 downlink measurement pilot frequencies to terminal, and assume that each downlink measures Pilot tone has 8 ports, then terminal can measure a 8 port downlink measurement pilot frequencies, can also measure two 8 port downlinks and measure Pilot tone, etc..

Wherein, RI can correspond to the number of data streams of channel energy simultaneous transmission at that time, because channel is variation, therefore RI Also it can change, but be the largest the port number that RI does not exceed downlink measurement pilot frequency, be not more than terminal reception antenna Number.For example, if downlink measurement pilot frequency has 8 ports, and terminal reception antenna number is 8, then RI can be 1,2, 3、4、5、6、7、8.If downlink measurement pilot frequency has 8 ports, but the number of terminal reception antenna is 4, then RI can be 1、2、3、4。

In addition, a downlink measurement pilot frequency can correspond to multiple RI, if multiple RI that terminal is reported to network side equipment Corresponding measurement pilot tone, it can be understood as the terminal, these RI can be used under channel condition at that time.

In the embodiment of the present invention, for step 202, network side equipment is after receiving N number of RI that terminal reports, network Side apparatus can determine M target RI according to the height of channel quality in N number of RI.After target RI is determined, network side is set It is standby to obtain the corresponding target PMI of M destination channel order, and the target PMI got is sent to terminal.

So far, network side equipment determines target RI, and target PMI corresponding with target RI, that is, indicates terminal The corresponding pre-coding matrixes of target RI can be obtained, and corresponding CQI is calculated by pre-coding matrix.In order to facilitate understanding, under Face is by taking 2 antenna codebooks shown in table 1 as an example, that is to say, that the RI that terminal can report is 1 or 2.

Table 1

Such as：Terminal has reported RI=2, and network side equipment can be believed after obtaining channel information according to the channel of acquisition Breath selects a corresponding PMI from the code book of RI=2 (corresponding PMI value can be 0 or 1 or 2 here), it is assumed that network side equipment The PMI value selected is 0, then PMI is 0 and RI is that 2 corresponding pre-coding matrixes areI.e. terminal can obtain target The corresponding pre-coding matrixes of RI.

In this way, in the embodiment of the present invention, for step 203, terminal can be determined according to network side equipment in step 202 Target RI and step 202 in the target pre-coding matrix index corresponding with target RI that is sent to terminal of network side equipment Pre-coding matrix, calculate corresponding CQI.

It may be implemented through the above steps in non-code book mimo system, the CQI value authenticity and accuracy that terminal calculates, It is consistent can also to realize that network side equipment reaches understanding to the CQI that terminal is fed back.This is because network side equipment is according in terminal The RI of report is that terminal sends PMI corresponding with RI, so that it is guaranteed that the CQI value that terminal calculates is true and accurate；In addition, terminal calculates CQI be using the PMI indicated by network side equipment, terminal by the CQI feedback of calculating to network side equipment when, network side can be made It is consistent that equipment reaches understanding to the CQI that terminal is fed back.

In addition, in the embodiment of the present invention, above-mentioned terminal can be terminal shown in FIG. 1, and terminal may include one or Person's mutiple antennas module, such as：As shown in figure 3, including mutiple antennas module.

Optionally, the method further includes：The terminal to the network side equipment send upstream detection pilot frequency, it is described on Row detecting pilot frequency is used to measure for the network side equipment, and determines M target in N number of channel sequence according to measurement result Channel sequence, and target pre-coding matrix index corresponding with the M destination channel order.

Present embodiment provides a kind of tool of network side equipment acquisition target RI and target PMI corresponding with target RI Body method, i.e. network side equipment can by upstream detection pilot frequency that terminal is sent to determine target RI and with the target The corresponding target PMI of RI.Specifically, first, terminal can send upstream detection pilot frequency SRS (Sounding to network side equipment Reference Signal)；Network side equipment can survey upstream detection pilot frequency after receiving upstream detection pilot frequency Amount, wherein network side equipment can be made to obtain channel quality the measurement of upstream detection pilot frequency, and according to channel quality, into One step determines target RI and target PMI corresponding with target RI.

Based on property of channel reciprocity, uplink and downlink in a tdd system work in the same frequency, therefore, network side Equipment can obtain descending channel information by the measurement to upstream detection pilot frequency, that is to say, that network side equipment is visited by uplink The PMI for surveying the measurement acquisition of pilot tone can be used for downlink data precoding transmissions.

In present embodiment, target PMI is determined to the measurement of upstream detection pilot frequency by network side equipment, well body Property of channel reciprocity is showed, the CQI for making terminal calculate by present embodiment more accurately represents true channel quality.

If as an alternative embodiment, the N is equal to 1, the M is equal to 1, and the upstream detection pilot frequency is for supplying The network side equipment measures, and determines the corresponding target pre-coding matrix rope of the M destination channel order according to measurement result Draw.

The optional embodiment is adapted to the case where terminal reports a RI to network side equipment.Due to terminal to The RI that network side equipment reports only there are one, therefore, network side equipment can be directly using the RI as target RI, and according to upper The measurement result of row detecting pilot frequency determines the corresponding target PMI of this target RI.

As another optional embodiment, if the N is more than 1, the M is more than or equal to 1, the uplink detection Pilot tone is used to measure for the network side equipment, and determines M destination channel in N number of channel sequence according to measurement result Order, and target pre-coding matrix index corresponding with the M destination channel order.

The optional embodiment is adapted to the case where terminal reports multiple RI to network side equipment.Due to terminal to The RI more than one that network side equipment reports, therefore, network side equipment can select suitable at least one RI in multiple RI As target RI.Specifically, network side equipment can be according to the measurement to upstream detection pilot frequency come selection target RI.For example, net Network side apparatus can be by obtaining channel quality, if channel quality is high to the measurement of upstream detection pilot frequency, and network side equipment can be with Using larger RI as target RI；If channel quality is low, network side equipment can be using smaller RI as target RI.Certainly, net Network side apparatus determines that the mode of target RI can also be all other feasible modes, in this regard, present embodiment and being not construed as limiting.

It should be noted that network side equipment the concrete mode that upstream detection pilot frequency measures can be based on it is any feasible Algorithm or the prior art are realized, target RI, and target PMI corresponding with target RI are determined according to measurement result, can also base It realizes in any feasible algorithm or the prior art, to avoid repeating, this is not repeated.

In the embodiment, multiple RI are reported to network side equipment by terminal, network side equipment is according to uplink detection The measurement of pilot tone has the advantageous effect for improving target RI selection flexibility ratios to determine target RI.

The case where difference based on the data transfer mode that network side equipment is assumed, each target RI corresponding target PMI There may be differences, wherein the data transfer mode that network side equipment is assumed can be the data transfer mode of subcarrier.In order to It more fully understands present embodiment, is illustrated so that four antenna RI are 2 as an example below.The number for the subcarrier that network side equipment is assumed It can be that all subcarriers carry out precoding transmissions with the corresponding pre-coding matrixes of a PMI according to transmission mode, can also be use The corresponding pre-coding matrix of multiple PMI carries out precoding transmissions.For all subcarriers corresponding pre-coding matrixes of one PMI The mode for carrying out precoding transmissions is readily appreciated that, to this without illustrating.For with the corresponding pre-coding matrixes of multiple PMI Precoding transmissions are carried out, and the transmission mode of multiple hypotheses can be corresponded to.For example, network side equipment can indicate four antenna codebooks Corresponding RI be 2 two PMI cycle hypothesis under carry out data transmission, can be odd subcarriers using PMI1 and even number is sub Carrier wave carries out PMI cycles using PMI2, as shown in Figure 4；Can also be that PMI cycles are carried out as unit using continuous N number of carrier wave, such as Shown in Fig. 5.

In present embodiment, the first transmission mode that network side equipment is assumed can be entire subcarrier at a PMI The mode of transmission.In this mode, target RI and corresponding target PMI is one-to-one relationship.

The method further includes：It is corresponding that the terminal obtains each destination channel order in the M destination channel order Pre-coding matrix endless form；

In present embodiment, the second transmission mode that network side equipment is assumed can be that subcarrier is transmitted at multiple PMI Mode.In this mode, target RI and corresponding target PMI is one-to-many relationship.

In above-mentioned two embodiment, determined by the difference of the data transfer mode of consideration network side equipment hypothesis Target PMI corresponding with target RI, can make the method for the acquisition channel state information of the embodiment of the present invention is suitable for difference Data transfer mode, so as to improve the flexibility of non-code book mimo system, to adapt to the need of different scenes or business It asks.

Optionally, the method further includes：The terminal reports the M channel quality rope to the network side equipment Draw, the M channel quality index is for supplying the network side equipment according to M channel described in the M destination channel sum of ranks The pre-coding matrix of quality index and the corresponding target pre-coding matrix index of the M destination channel order, to the terminal Transmit downlink data.

In present embodiment, terminal can also report M CQI being calculated, network side equipment to connect to network side equipment After receiving the CQI that terminal reports, RI (or target RI of network side equipment determination), CQI that terminal can be used to report And the corresponding pre-coding matrixes of target PMI carry out the transmission of downlink data.

So far, network side equipment completes acquisition channel state information, and carries out the entire work of the transmission of downlink data Make flow.

Referring to FIG. 6, a kind of method obtaining channel state information is also provided in the embodiment of the present invention, as shown in fig. 6, packet Include following steps：

601, network side equipment sends downlink measurement pilot frequency to terminal, and receives N number of channel sequence that the terminal reports, institute Downlink measurement pilot frequency is stated for measuring for the terminal, N number of channel sequence is the terminal based on being led to the downlink measurement Channel sequence determined by the measurement of frequency, the N are the integer more than or equal to 1；

602, the network side equipment determines that target corresponding with M destination channel order in N number of channel sequence prelists Code matrix index；

603, the network side equipment sends the target corresponding with the M destination channel order to the terminal and prelists Code matrix index, the corresponding target pre-coding matrix index of the M destination channel order is used to calculate for the terminal and the M The corresponding M channel quality index of a destination channel order；The M is the integer more than or equal to 1, and the N is more than or waits In M.

Optionally, the method further includes：

It should be noted that embodiment party of the present embodiment as network side equipment corresponding with embodiment shown in Fig. 2 Formula, specific embodiment may refer to the related description of embodiment shown in Fig. 2, in order to avoid repeated explanation, this implementation Example repeats no more, and may also reach up identical advantageous effect.

Referring to FIG. 7, the embodiment of the present invention provides a kind of terminal, as shown in fig. 7, terminal 700 includes：

Sending module 701, the downlink measurement pilot frequency for measuring network side equipment transmission, and according to measurement result to described It is the integer more than or equal to 1 that network side equipment, which reports N number of channel sequence, the N,；

Receiving module 702, for receiving believing with M target in N number of channel sequence for the network side equipment transmission The corresponding target pre-coding matrix index of road order, the M are the integer more than or equal to 1, and the N is more than or equal to M；

Computing module 703, for according to the M destination channel order and the corresponding target of the M destination channel order The corresponding pre-coding matrix of pre-coding matrix index calculates separately corresponding M channel quality index.

Optionally, the sending module 701 is used to send upstream detection pilot frequency to the network side equipment, and the uplink is visited It surveys pilot tone to be used to measure for the network side equipment, and the corresponding target of the M destination channel order is determined according to measurement result Pre-coding matrix index.

Optionally, if the data transfer mode that the network side equipment is assumed is the first transmission mode, the computing module 703 for according to the M destination channel order and the corresponding target pre-coding matrix index of the M destination channel order Pre-coding matrix calculates corresponding M channel quality index.

Optionally, if as shown in figure 8, the data transfer mode of the hypothesis of the network side equipment be the second transmission mode, The number of the corresponding target pre-coding matrix index of the M destination channel order is Y, and the Y is equal to the positive integer times of M；

Terminal 700 further includes acquisition module 704, for obtaining each destination channel order in the M destination channel order Corresponding pre-coding matrix endless form；

The computing module 703 is used for according to the M destination channel order, the corresponding target of the M destination channel order The pre-coding matrix of pre-coding matrix index, and the corresponding pre-coding matrix endless form of each destination channel order, point Corresponding M channel quality index is not calculated.

Optionally, the sending module 701 is used to report the M channel quality to index to the network side equipment, institute M channel quality index is stated for supplying the network side equipment according to M channel quality rope described in the M destination channel sum of ranks Draw and the pre-coding matrix of the corresponding target pre-coding matrix index of the M destination channel order, under the terminal transmission Row data.

It should be noted that above-mentioned terminal 700 can be appointed in embodiment of the method in the embodiment of the present invention in the present embodiment The terminal for embodiment of anticipating, the arbitrary embodiment of terminal can be by the present embodiment in embodiment of the method in the embodiment of the present invention In above-mentioned terminal 700 realized that and reach identical advantageous effect, details are not described herein again.

Referring to FIG. 9, the embodiment of the present invention provides a kind of network side equipment, as shown in figure 9, network side equipment 900, packet It includes：

Receiving module 901 for sending downlink measurement pilot frequency to terminal, and receives N number of channel sequence that the terminal reports, The downlink measurement pilot frequency is used to measure for the terminal, and N number of channel sequence is that the terminal is based on measuring the downlink Channel sequence determined by the measurement of pilot tone, the N are the integer more than or equal to 1；

Determining module 902, for determining target precoding corresponding with M destination channel order in N number of channel sequence Matrix index；

Sending module 903, for sending the target precoding corresponding with the M destination channel order to the terminal Matrix index, the corresponding target pre-coding matrix index of the M destination channel order are used to calculate and the M for the terminal The corresponding M channel quality index of destination channel order；The M is the integer more than or equal to 1, and the N is more than or equal to M。

Optionally, the receiving module 901 is used to receive the upstream detection pilot frequency that the terminal is sent；

The determining module 902 determines and the M mesh for measuring the upstream detection pilot frequency, and according to measurement result Mark the corresponding target pre-coding matrix index of channel sequence.

Optionally, if the N is equal to 1, the M is equal to 1, and the determining module 902 is led for measuring the uplink detection Frequently, and according to measurement result determine target pre-coding matrix index corresponding with the M destination channel order；

If the N is more than 1, the M is more than or equal to 1, and the determining module 902 is led for measuring the uplink detection Frequently, and according to measurement result determine M destination channel order in N number of channel sequence, and with the M destination channel order pair The target pre-coding matrix index answered.

Optionally, if the data transfer mode of the network side equipment is the first transmission mode, the determining module 902 is used In determining target pre-coding matrix index corresponding with M destination channel order in N number of channel sequence.

The sending module 903 is used to send each destination channel order in the M destination channel order to the terminal Pre-coding matrix endless form corresponding to corresponding target pre-coding matrix index, each destination channel order are corresponding described pre- Encoder matrix endless form is used to calculate corresponding M channel quality index for the terminal.

Optionally, the receiving module 901 is used to receive the M channel quality index that the terminal reports；

The sending module 903 is used for according to M channel quality index, Yi Jisuo described in the M destination channel sum of ranks The pre-coding matrix for stating the corresponding target pre-coding matrix index of M destination channel order, to the terminal transmission downlink data.

It should be noted that above-mentioned network side equipment 900 can be that method is implemented in the embodiment of the present invention in the present embodiment The network side equipment of arbitrary embodiment in example, in the embodiment of the present invention in embodiment of the method network side equipment arbitrary embodiment party Formula can be realized by the network side equipment 900 in the present embodiment, and reach identical advantageous effect, no longer superfluous herein It states.

Referring to FIG. 10, the embodiment of the present invention provides another terminal, as shown in Figure 10, which includes：Processor 1000, transceiver 1010, memory 1020, user interface 1030 and bus interface, wherein：

Processor 1000 executes following process for reading the program in memory 1020：

The downlink measurement pilot frequency that network side equipment is sent is measured by transceiver 1010, and according to measurement result to the net It is the integer more than or equal to 1 that network side apparatus, which reports N number of channel sequence, the N,；

Receive that the network side equipment sends by transceiver 1010 with M destination channel in N number of channel sequence The corresponding target pre-coding matrix index of order, the M are the integer more than or equal to 1, and the N is more than or equal to M；

It is pre- according to the M destination channel order and the corresponding target of the M destination channel order by transceiver 1010 Encoder matrix indexes corresponding pre-coding matrix, calculates separately corresponding M channel quality index.

Wherein, transceiver 1010, for sending and receiving data under the control of processor 1000.

In Fig. 10, bus architecture may include the bus and bridge of any number of interconnection, specifically by 1000 generation of processor The various circuits for the memory that the one or more processors and memory 1020 of table represent link together.Bus architecture may be used also To link together various other circuits of such as peripheral equipment, voltage-stablizer and management circuit or the like, these are all It is known in the art, therefore, it will not be further described herein.Bus interface provides interface.Transceiver 1010 can To be multiple element, that is, includes transmitter and receiver, the list for being communicated over a transmission medium with various other devices is provided Member.For different user equipmenies, user interface 1030, which can also be, external the interface for needing equipment is inscribed, and connection is set Standby including but not limited to keypad, display, loud speaker, microphone, control stick etc..

Processor 1000 is responsible for bus architecture and common processing, and memory 1020 can store processor 1000 and exist Execute used data when operation.

Optionally, the method further includes：Upstream detection pilot frequency is sent to the network side equipment, the uplink detection is led Frequency determines that the corresponding target of the M destination channel order prelists for being measured for the network side equipment according to measurement result Code matrix index.

Optionally, if the data transfer mode that the network side equipment is assumed is the first transmission mode, according to the M mesh The pre-coding matrix of channel sequence and the corresponding target pre-coding matrix index of the M destination channel order is marked, is calculated corresponding M channel quality index.

The method further includes：Obtain the corresponding precoding square of each destination channel order in the M destination channel order Battle array endless form；

It is described according to the M destination channel order and the corresponding target pre-coding matrix rope of the M destination channel order The pre-coding matrix drawn calculates corresponding M channel quality index, including：

According to the M destination channel order, the corresponding target pre-coding matrix index of M destination channel order prelists Code matrix, and the corresponding pre-coding matrix endless form of each destination channel order, calculate separately corresponding M channel matter Amount index.

Optionally, the method further includes：The M channel quality is reported to index to the network side equipment, the M Channel quality index is used to be indexed according to M channel quality described in the M destination channel sum of ranks for the network side equipment, with And the pre-coding matrix of the corresponding target pre-coding matrix index of the M destination channel order, to the terminal transmission under line number According to.

It should be noted that above-mentioned terminal can be the terminal in Fig. 1 to embodiment shown in Fig. 9, Fig. 1 in the present embodiment Arbitrary embodiment to terminal in embodiment illustrated in fig. 9 can be realized by the above-mentioned terminal in the present embodiment, Yi Jida To identical advantageous effect, details are not described herein again.

1 is please referred to Fig.1, the embodiment of the present invention provides another network side equipment, as shown in figure 11, the network equipment packet It includes：Processor 1100, transceiver 1110, memory 1120, user interface 1130 and bus interface, wherein：

Processor 1100 executes following process for reading the program in memory 1120：

Downlink measurement pilot frequency is sent to terminal by transceiver 1110, and receives N number of channel sequence that the terminal reports, institute Downlink measurement pilot frequency is stated for measuring for the terminal, N number of channel sequence is the terminal based on being led to the downlink measurement Channel sequence determined by the measurement of frequency, the N are the integer more than or equal to 1；

Target precoding square corresponding with M destination channel order in N number of channel sequence is determined by transceiver 1110 Battle array index；

By transceiver 1110 the target precoding square corresponding with the M destination channel order is sent to the terminal Battle array index, the corresponding target pre-coding matrix index of the M destination channel order is used to calculate for the terminal and the M mesh Mark the corresponding M channel quality index of channel sequence；The M is the integer more than or equal to 1, and the N is more than or equal to M.

Wherein, transceiver 1110, for sending and receiving data under the control of processor 1100.

In fig. 11, bus architecture may include the bus and bridge of any number of interconnection, specifically by 1100 generation of processor The various circuits for the memory that the one or more processors and memory 1120 of table represent link together.Bus architecture may be used also To link together various other circuits of such as peripheral equipment, voltage-stablizer and management circuit or the like, these are all It is known in the art, therefore, it will not be further described herein.Bus interface provides interface.Transceiver 1110 can To be multiple element, that is, includes transmitter and receiver, the list for being communicated over a transmission medium with various other devices is provided Member.For different user equipmenies, user interface 1130, which can also be, external the interface for needing equipment is inscribed, and connection is set Standby including but not limited to keypad, display, loud speaker, microphone, control stick etc..

Processor 1100 is responsible for bus architecture and common processing, and memory 1120 can store processor 1100 and exist Execute used data when operation.

Optionally, the method further includes：Receive the upstream detection pilot frequency that the terminal is sent；

Determine target pre-coding matrix index corresponding with M destination channel order in N number of channel sequence, including：

The upstream detection pilot frequency is measured, and target corresponding with the M destination channel order is determined according to measurement result Pre-coding matrix index.

Optionally, if the N is equal to 1, the M is equal to 1, measures the upstream detection pilot frequency, and true according to measurement result Fixed target pre-coding matrix index corresponding with the M destination channel order；

If the N is more than 1, the M is more than or equal to 1, determines and M destination channel order in N number of channel sequence Corresponding target pre-coding matrix index, including：

The upstream detection pilot frequency is measured, and M destination channel in N number of channel sequence is determined according to measurement result Order, and target pre-coding matrix index corresponding with the M destination channel order.

Optionally, it if the data transfer mode of the network side equipment is the first transmission mode, determines and N number of channel The corresponding target pre-coding matrix index of M destination channel order in order.

The corresponding target pre-coding matrix of each destination channel order in the M destination channel order is sent to the terminal The corresponding pre-coding matrix endless form of index, the corresponding pre-coding matrix endless form of each destination channel order are used for Corresponding M channel quality index is calculated for the terminal.

Optionally, the method further includes：

Receive the M channel quality index that the terminal reports；

It is corresponded to according to M channel quality index and the M destination channel order described in the M destination channel sum of ranks Target pre-coding matrix index pre-coding matrix, to the terminal transmission downlink data.

It should be noted that above-mentioned network side equipment can be the net in Fig. 1 to embodiment shown in Fig. 9 in the present embodiment Network side apparatus, the arbitrary embodiment of network side equipment can be by above-mentioned in the present embodiment in Fig. 1 to embodiment illustrated in fig. 9 Network side equipment is realized, and reaches identical advantageous effect, and details are not described herein again.

One of ordinary skill in the art will appreciate that realizing the acquisition channel status letter for the end side that above-described embodiment provides The all or part of step of the method for breath is can be completed by the relevant hardware of program instruction, and the program can deposit It is stored in a storage medium, which when being executed, includes the following steps：

Optionally, the method further includes：

The method further includes：

Optionally, the method further includes：

One of ordinary skill in the art will appreciate that realizing the acquisition channel shape for the network side equipment that above-described embodiment provides The all or part of step of the method for state information is can be completed by the relevant hardware of program instruction, and the program can To be stored in a storage medium, which when being executed, includes the following steps：

Optionally, the method further includes：

In several embodiments provided herein, it should be understood that disclosed method and apparatus, it can be by other Mode realize.For example, the apparatus embodiments described above are merely exemplary, for example, the division of the unit, only For a kind of division of logic function, formula that in actual implementation, there may be another division manner, such as multiple units or component can combine Or it is desirably integrated into another system, or some features can be ignored or not executed.Another point, shown or discussed phase Coupling, direct-coupling or communication connection between mutually can be by some interfaces, the INDIRECT COUPLING or communication of device or unit Connection can be electrical, machinery or other forms.

In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, it can also It is that the independent physics of each unit includes, it can also be during two or more units be integrated in one unit.Above-mentioned integrated list The form that hardware had both may be used in member is realized, can also be realized in the form of hardware adds SFU software functional unit.

The above-mentioned integrated unit being realized in the form of SFU software functional unit can be stored in one and computer-readable deposit In storage media.Above-mentioned SFU software functional unit is stored in a storage medium, including some instructions are used so that a computer Equipment (can be personal computer, server or the network equipment etc.) executes receiving/transmission method described in each embodiment of the present invention Part steps.And storage medium above-mentioned includes：USB flash disk, mobile hard disk, read-only memory (Read-Only Memory, abbreviation ROM), random access memory (Random Access Memory, abbreviation RAM), magnetic disc or CD etc. are various to store The medium of program code.

The above is the preferred embodiment of the present invention, it is noted that for those skilled in the art For, without departing from the principles of the present invention, it can also make several improvements and retouch, these improvements and modifications It should be regarded as protection scope of the present invention.

Claims

1. a kind of method obtaining channel state information, which is characterized in that including：

Terminal measures the downlink measurement pilot frequency that network side equipment is sent, and reports N to the network side equipment according to measurement result A channel sequence, the N are the integer more than or equal to 1；

The terminal receives the mesh corresponding with M destination channel order in N number of channel sequence that the network side equipment is sent Pre-coding matrix index is marked, the M is the integer more than or equal to 1, and the N is more than or equal to M；

The terminal is according to the M destination channel order and the corresponding target pre-coding matrix rope of the M destination channel order Draw corresponding pre-coding matrix, calculates separately corresponding M channel quality index.

2. according to the method described in claim 1, it is characterized in that, the method further includes：

The terminal sends upstream detection pilot frequency to the network side equipment, and the upstream detection pilot frequency is used to supply the network side Device measuring, and the corresponding target pre-coding matrix index of the M destination channel order is determined according to measurement result.

3. if according to the method described in claim 2, it is characterized in that, the N is equal to 1, the M is equal to 1, the uplink detection Pilot tone is used to measure for the network side equipment, and determines that the corresponding target of the M destination channel order is pre- according to measurement result Encoder matrix indexes；

If the N is more than 1, the M is more than or equal to 1, and the upstream detection pilot frequency is used to measure for the network side equipment, And M destination channel order in N number of channel sequence is determined according to measurement result, and it is corresponding with the M destination channel order Target pre-coding matrix index.

4. according to the method in any one of claims 1 to 3, which is characterized in that if the number that the network side equipment is assumed It is the first transmission mode according to transmission mode, the terminal is according to the M destination channel order and the M destination channel order The pre-coding matrix of corresponding target pre-coding matrix index calculates corresponding M channel quality index.

5. according to the method in any one of claims 1 to 3, which is characterized in that if the number that the network side equipment is assumed It is the second transmission mode according to transmission mode, the number of the corresponding target pre-coding matrix index of the M destination channel order is Y A, the Y is equal to the positive integer times of M；

The method further includes：

The terminal obtains the corresponding pre-coding matrix endless form of each destination channel order in the M destination channel order；

The terminal is according to the M destination channel order and the corresponding target pre-coding matrix rope of the M destination channel order The pre-coding matrix drawn calculates corresponding M channel quality index, including：

The terminal according to the M destination channel order, the corresponding target pre-coding matrix index of the M destination channel order Pre-coding matrix, and the corresponding pre-coding matrix endless form of each destination channel order, calculate separately corresponding M letter Road quality index.

6. according to the method in any one of claims 1 to 3, which is characterized in that the method further includes：The terminal to The network side equipment reports the M channel quality to index, and the M channel quality index is for supplying the network side equipment It is pre- according to M channel quality index and the corresponding target of the M destination channel order described in the M destination channel sum of ranks The pre-coding matrix of encoder matrix index, to the terminal transmission downlink data.

7. a kind of method obtaining channel state information, which is characterized in that including：

Network side equipment sends downlink measurement pilot frequency to terminal, and receives N number of channel sequence that the terminal reports, and the downlink is surveyed It measures pilot tone to be used to measure for the terminal, N number of channel sequence is the terminal based on the measurement to the downlink measurement pilot frequency Identified channel sequence, the N are the integer more than or equal to 1；

The network side equipment determines target pre-coding matrix rope corresponding with M destination channel order in N number of channel sequence Draw；

The network side equipment sends the target pre-coding matrix rope corresponding with the M destination channel order to the terminal Draw, the corresponding target pre-coding matrix index of the M destination channel order is used to calculate and M target letter for the terminal The corresponding M channel quality index of road order；The M is the integer more than or equal to 1, and the N is more than or equal to M.

8. the method according to the description of claim 7 is characterized in that the method further includes：

The network side equipment determines target pre-coding matrix rope corresponding with M destination channel order in N number of channel sequence Draw, including：

The network side equipment measures the upstream detection pilot frequency, and is determined and the M destination channel order according to measurement result Corresponding target pre-coding matrix index.

9. if according to the method described in claim 8, it is characterized in that, the N is equal to 1, the M is equal to 1, and the network side is set It is standby to measure the upstream detection pilot frequency, and target precoding corresponding with the M destination channel order is determined according to measurement result Matrix index；

If the N is more than 1, the M is more than or equal to 1, and the network side equipment determines and M in N number of channel sequence The corresponding target pre-coding matrix index of destination channel order, including：

The network side equipment measures the upstream detection pilot frequency, and determines the M in N number of channel sequence according to measurement result Destination channel order, and target pre-coding matrix index corresponding with the M destination channel order.

10. the method according to any one of claim 7 to 9, which is characterized in that if the data of the network side equipment pass Defeated mode is the first transmission mode, and the network side equipment determines corresponding with M destination channel order in N number of channel sequence Target pre-coding matrix index.

11. the method according to any one of claim 7 to 9, which is characterized in that if the data of the network side equipment pass Defeated mode is the second transmission mode, and the number of the corresponding target pre-coding matrix index of the M destination channel order is Y a, institute State the positive integer times that Y is equal to M；

The network side equipment sends the corresponding target of each destination channel order in the M destination channel order to the terminal Pre-coding matrix endless form corresponding to pre-coding matrix index, the corresponding pre-coding matrix of each destination channel order follow Ring mode is used to calculate corresponding M channel quality index for the terminal.

12. the method according to any one of claim 7 to 9, which is characterized in that the method further includes：

The network side equipment is according to M channel quality index and the M target described in the M destination channel sum of ranks The pre-coding matrix of the corresponding target pre-coding matrix index of channel sequence, to the terminal transmission downlink data.

13. a kind of terminal, which is characterized in that including：

Sending module, the downlink measurement pilot frequency for measuring network side equipment transmission, and according to measurement result to the network side It is the integer more than or equal to 1 that equipment, which reports N number of channel sequence, the N,；

Receiving module, for receiving the corresponding with M destination channel order in N number of channel sequence of the network side equipment transmission Target pre-coding matrix index, the M is integer more than or equal to 1, and the N is more than or equal to M；

Computing module, for according to the M destination channel order and the corresponding target precoding of the M destination channel order The corresponding pre-coding matrix of matrix index calculates separately corresponding M channel quality index.

14. terminal according to claim 13, which is characterized in that the sending module is used to send out to the network side equipment Upstream detection pilot frequency is sent, the upstream detection pilot frequency is used to measure for the network side equipment, and determines institute according to measurement result State the corresponding target pre-coding matrix index of M destination channel order.

15. terminal according to claim 14, which is characterized in that if the N is equal to 1, the M is equal to 1, and the uplink is visited It surveys pilot tone to be used to measure for the network side equipment, and the corresponding target of the M destination channel order is determined according to measurement result Pre-coding matrix index；

16. the terminal according to any one of claim 13 to 15, which is characterized in that if what the network side equipment was assumed Data transfer mode is the first transmission mode, and the computing module is used for according to the M destination channel order and the M The pre-coding matrix of the corresponding target pre-coding matrix index of destination channel order calculates corresponding M channel quality index.

17. the terminal according to any one of claim 13 to 15, which is characterized in that if the hypothesis of the network side equipment Data transfer mode be the second transmission mode, the number of the corresponding target pre-coding matrix index of the M destination channel order It it is Y, the Y is equal to the positive integer times of M；

Further include acquisition module, for obtaining the corresponding precoding square of each destination channel order in the M destination channel order Battle array endless form；

The computing module is used for according to the M destination channel order, the corresponding target precoding square of the M destination channel order The pre-coding matrix of battle array index, and the corresponding pre-coding matrix endless form of each destination channel order, calculate separately pair The M channel quality index answered.

18. the terminal according to any one of claim 13 to 15, which is characterized in that the sending module is used for described Network side equipment reports the M channel quality to index, the M channel quality index for the confession network side equipment according to M channel quality index and the corresponding target precoding of the M destination channel order described in the M destination channel sum of ranks The pre-coding matrix of matrix index, to the terminal transmission downlink data.

19. a kind of network side equipment, which is characterized in that including：

Receiving module for sending downlink measurement pilot frequency to terminal, and receives N number of channel sequence that the terminal reports, under described Row measures pilot tone and is used to measure for the terminal, and N number of channel sequence is the terminal based on to the downlink measurement pilot frequency Channel sequence determined by measuring, the N are the integer more than or equal to 1；

Determining module, for determining target pre-coding matrix rope corresponding with M destination channel order in N number of channel sequence Draw；

Sending module, for sending the target pre-coding matrix rope corresponding with the M destination channel order to the terminal Draw, the corresponding target pre-coding matrix index of the M destination channel order is used to calculate and M target letter for the terminal The corresponding M channel quality index of road order；The M is the integer more than or equal to 1, and the N is more than or equal to M.

20. network side equipment according to claim 19, which is characterized in that the receiving module is for receiving the terminal The upstream detection pilot frequency of transmission；

The determining module determines and the M destination channel for measuring the upstream detection pilot frequency, and according to measurement result The corresponding target pre-coding matrix index of order.

21. network side equipment according to claim 20, which is characterized in that if the N is equal to 1, the M is described equal to 1 Determining module is used to measure the upstream detection pilot frequency, and corresponding with the M destination channel order according to measurement result determination Target pre-coding matrix index；

If the N is more than 1, the M is more than or equal to 1, and the determining module is for measuring the upstream detection pilot frequency, and root M destination channel order in N number of channel sequence, and mesh corresponding with the M destination channel order are determined according to measurement result Mark pre-coding matrix index.

22. the network side equipment according to any one of claim 19 to 21, which is characterized in that if the network side equipment Data transfer mode be the first transmission mode, the determining module for determine with N number of channel sequence in M target letter The corresponding target pre-coding matrix index of road order.

23. the network side equipment according to any one of claim 19 to 21, which is characterized in that if the network side equipment Data transfer mode be the second transmission mode, the number of the corresponding target pre-coding matrix index of the M destination channel order It it is Y, the Y is equal to the positive integer times of M；

The sending module is used to send the corresponding mesh of each destination channel order in the M destination channel order to the terminal Mark the pre-coding matrix endless form corresponding to pre-coding matrix index, the corresponding pre-coding matrix of each destination channel order Endless form is used to calculate corresponding M channel quality index for the terminal.

24. the network side equipment according to claim 19 or 21, which is characterized in that the receiving module is described for receiving The M channel quality index that terminal reports；

The sending module is used for according to M channel quality index and the M mesh described in the M destination channel sum of ranks The pre-coding matrix for marking the corresponding target pre-coding matrix index of channel sequence, to the terminal transmission downlink data.

25. a kind of terminal, which is characterized in that including：Processor, transceiver, memory, user interface and bus interface, wherein：

The processor is executed and is obtained as according to any one of claims 1 to 6 for reading the program in the memory Step in the method for channel state information of winning the confidence.

26. a kind of network side equipment, which is characterized in that including：Processor, transceiver, memory, user interface and bus connect Mouthful, wherein：

The processor executes obtaining as described in any one of claim 7 to 12 for reading the program in the memory Step in the method for channel state information of winning the confidence.

27. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that the computer program It is realized when being executed by processor such as the step in the method according to any one of claims 1 to 6 for obtaining channel state information.

28. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that the computer program The step in the method for the acquisition channel state information as described in any one of claim 7 to 12 is realized when being executed by processor Suddenly.