CN108667491A

CN108667491A - Sending method, method of reseptance, relevant device and the system of PMI information

Info

Publication number: CN108667491A
Application number: CN201710202827.4A
Authority: CN
Inventors: 李建军
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2017-03-30
Filing date: 2017-03-30
Publication date: 2018-10-16
Anticipated expiration: 2037-03-30
Also published as: CN108667491B

Abstract

The present invention discloses a kind of sending method of PMI information, method of reseptance, relevant device and system, this method：The first Downlink Control Information is sent to user terminal, first Downlink Control Information includes the instruction information for the multiple PRG for distributing to the user terminal and the position indication information of downlink resource；By the downlink resource, the PMI information of multiple pre-coding matrixes corresponding with the multiple PRG is sent to the user terminal.Since the PMI information of multiple pre-coding matrixes is sent to user terminal for multiple PRG so that user terminal can use corresponding pre-coding matrix on different PRG, to improve the transmission performance of prelist code performance and communication system.

Description

Sending method, method of reseptance, relevant device and the system of PMI information

Technical field

The present invention relates to field of communication technology more particularly to a kind of pre-coding matrix instruction (Precoding Matrix Indication, PMI) information sending method, method of reseptance, relevant device and system.

Background technology

At present in communication system, user terminal is often the physical resource group (Physical distributed in network side equipment Resource Group, PRG) on carry out uplink signal precoding, and by antenna to network side equipment send precoding after Signal, to complete the transmission of uplink signal.

However, no matter being that user terminal distributes one or multiple PRG, network side equipment is user terminal configuration one A pre-coding matrix, and pass through descending control information format (Down Link Control Information format, DCI Format) the PMI information of the message informing user terminal pre-coding matrix, that is, all PRG share a pre-coding matrix.

In practical applications, due to the selectivity of channel frequency, the channel of different PRG is different, causes for user terminal Configuration same pre-coding matrix, can't be matched with all PRG, that is, for user terminal configuration pre-coding matrix not It is the optimal pre-coding matrix of all PRG for distributing to user terminal, user terminal is enterprising in PRG using above-mentioned pre-coding matrix When the precoding of row uplink signal, the code performance that can cause to prelist is poor.

Invention content

The embodiment of the present invention provides a kind of sending method of PMI information, method of reseptance, relevant device and system, to solve The poor problem of the code performance that prelists.

In a first aspect, an embodiment of the present invention provides a kind of sending methods of PMI information, including：

The first Downlink Control Information is sent to user terminal, first Downlink Control Information includes distributing to the user The instruction information of multiple PRG of terminal and the position indication information of downlink resource；

By the downlink resource, multiple pre-coding matrixes corresponding with the multiple PRG are sent to the user terminal PMI information.

Second aspect, the embodiment of the present invention also provide a kind of method of reseptance of PMI information, including：

The first Downlink Control Information that network side equipment is sent is received, first Downlink Control Information includes multiple PRG Instruction information and downlink resource position indication information；

According to the position indication information of the downlink resource, the network side equipment is received by the downlink resource and is sent Multiple pre-coding matrixes corresponding with the multiple PRG PMI information；

On the multiple PRG, respectively according to corresponding PMI information, precoding carried out to uplink signal, and to the net Network side apparatus sends the signal after precoding.

The third aspect, the embodiment of the present invention provide a kind of network side equipment, including：

First sending module, for sending the first Downlink Control Information, first Downlink Control Information to user terminal The position indication information of instruction information and downlink resource including multiple PRG for distributing to the user terminal；

Second sending module, for by the downlink resource, being sent to the user terminal corresponding with the multiple PRG Multiple pre-coding matrixes PMI information.

Fourth aspect, the embodiment of the present invention provide a kind of user terminal, including：

First receiving module, the first Downlink Control Information for receiving network side equipment transmission, the first downlink control Information processed includes the instruction information of multiple PRG and the position indication information of downlink resource；

Second receiving module is received for the position indication information according to the downlink resource by the downlink resource The PMI information for multiple pre-coding matrixes corresponding with the multiple PRG that the network side equipment is sent；

Precoding module, in the multiple PRG, respectively according to corresponding PMI information, being carried out to uplink signal pre- Coding, and send the signal after precoding to the network side equipment.

5th aspect, the embodiment of the present invention provide a kind of Transmission system of PMI information, including provided in an embodiment of the present invention Network side equipment and user terminal provided in an embodiment of the present invention.

In this way, in the embodiment of the present invention, the first Downlink Control Information, the first downlink control letter are sent to user terminal Breath includes the instruction information for the multiple PRG for distributing to the user terminal and the position indication information of downlink resource；Pass through institute Downlink resource is stated, the PMI information of multiple pre-coding matrixes corresponding with the multiple PRG is sent to the user terminal.Due to The PMI information of multiple pre-coding matrixes is had sent to user terminal for multiple PRG so that user terminal can be different Corresponding pre-coding matrix is used on PRG, to improve the transmission performance of prelist code performance and communication system.

Description of the drawings

In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be in embodiment or description of the prior art Required attached drawing is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the present invention Example is applied, it for those of ordinary skill in the art, without having to pay creative labor, can also be attached according to these Figure obtains other attached drawings.

Fig. 1 is a kind of applicable structure chart of the Transmission system of PMI information of the embodiment of the present invention；

Fig. 2 is a kind of flow chart of the sending method of PMI information provided in an embodiment of the present invention；

Fig. 3 is the flow chart of the sending method of another PMI information provided in an embodiment of the present invention；

Fig. 4 is the flow chart of the sending method of another PMI information provided in an embodiment of the present invention；

Fig. 5 is a kind of flow chart of the method for reseptance of PMI information provided in an embodiment of the present invention；

Fig. 6 is the flow chart of the method for reseptance of another PMI information provided in an embodiment of the present invention；

Fig. 7 is the flow chart of the method for reseptance of another PMI information provided in an embodiment of the present invention；

Fig. 8 is a kind of structure chart of network side equipment provided in an embodiment of the present invention；

Fig. 9 is the structure chart of another network side equipment provided in an embodiment of the present invention；

Figure 10 is the structure chart of another network side equipment provided in an embodiment of the present invention；

Figure 11 is the structure chart of another network side equipment provided in an embodiment of the present invention；

Figure 12 is a kind of structure chart of user terminal provided in an embodiment of the present invention；

Figure 13 is the structure chart of another user terminal provided in an embodiment of the present invention；

Figure 14 is the structure chart of another user terminal provided in an embodiment of the present invention；

Figure 15 is the structure chart of another network side equipment provided in an embodiment of the present invention；

Figure 16 is the structure chart of another user terminal provided in an embodiment of the present invention.

Specific implementation mode

Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation describes, it is clear that described embodiments are some of the embodiments of the present invention, instead of all the embodiments.Based on this hair Embodiment in bright, the every other implementation that those of ordinary skill in the art are obtained without creative efforts Example, shall fall within the protection scope of the present invention.

It is a kind of applicable structure chart of the Transmission system of PMI information of the embodiment of the present invention, such as Fig. 1 referring to Fig. 1, Fig. 1 It is shown, including user terminal 11 and network side equipment 12, wherein user terminal 11 can be UE (User Equipment), example Such as：Can be mobile phone, tablet computer (Tablet Personal Computer), laptop computer (Laptop Computer), Personal digital assistant (personal digital assistant, abbreviation PDA), mobile Internet access device (Mobile Internet Device, MID) or the terminal side equipments such as wearable device (Wearable Device), it should be noted that in the present invention The concrete type of user terminal 11 is not limited in embodiment.User terminal 11 can be established with network side equipment 12 and be communicated, In, the network in attached drawing can indicate that user terminal 11 and network side equipment 12 are wirelessly established and communicate, and network side equipment 12 can be with It is transmission receiving point (TRP, Transmission Reception Point), or can is base station, base station can be macro station, Such as LTE eNB, 5G NR NB.Or network side equipment 12 can be access point (AP, access point).

It should be noted that not limiting the concrete type of network side equipment 12, user terminal in embodiments of the present invention 11 and the concrete function of network side equipment 12 will be specifically described by following multiple embodiments.

Referring to FIG. 2, Fig. 2 is a kind of flow chart of the sending method of PMI information provided in an embodiment of the present invention, such as Fig. 2 It is shown, include the following steps：

Step 201 sends the first Downlink Control Information to user terminal.

Wherein, first Downlink Control Information includes the instruction information for the multiple PRG for distributing to the user terminal, with And the position indication information of downlink resource.

In the embodiment of the present invention, network side equipment can be the user terminal multiple PRG of distribution, and when distributing multiple PRG, Can be the corresponding pre-coding matrix of each PRG distribution, such as：From precoding matrix codebook, each PRG is selected respectively most Excellent pre-coding matrix.Such as by taking a PRG as an example, network side equipment calculates each pre-coding matrix in precoding matrix codebook and corresponds to The performance of the channel estimation of the PRG, and pre-coding matrix of the pre-coding matrix for selecting performance best as the PRG, other PRG Pre-coding matrix can also be selected by this way, this is not repeated.

In addition, the instruction information of above-mentioned multiple PRG may include：For the quantity of the PRG of user terminal distribution, and it is each The location information of PRG.Correspondingly, user terminal determines the position of each PRG by above-mentioned instruction information, with enterprising in above-mentioned PRG The transmission of row uplink signal.

Wherein, above-mentioned downlink resource can be the downlink control resource that network side equipment can use, such as：Control channel Element (Control Channel Element, CCE) resource；Or can be network side equipment can make above-mentioned downlink resource Downlink shared resource, such as：Physical Downlink Shared Channel (Physical Downlink Shared Channel, PDSCH) resource.And the position indication information of above-mentioned downlink resource can be indicated for the position of above-mentioned downlink resource, or It can be indicated for position and serial number of the above-mentioned downlink resource within the scope of specific downlink resource, or can be indicated for Above-mentioned downlink resource is the downlink resource etc. of current scheduling, is not construed as limiting to this embodiment of the present invention.In addition, above-mentioned first downlink It can be DCI format to control information.

Step 202, by downlink resource, the PMI of multiple pre-coding matrixes corresponding with multiple PRG is sent to user terminal Information.

Wherein, the corresponding multiple pre-coding matrixes of above-mentioned multiple PRG can be that network side equipment is that user terminal distribution is more It is the pre-coding matrix that each PRG is respectively configured after a PRG, such as：From precoding matrix codebook, each PRG is selected respectively Optimal pre-coding matrix.

Correspondingly, after user terminal receives the position indication information of downlink resource, so that it may with the above-mentioned downlink resource of determination, And then above-mentioned PMI information is received in the downlink resource, to obtain the PMI information of the corresponding multiple pre-coding matrixes of multiple PRG. Later, user terminal determines the pre-coding matrix of each PRG according to above-mentioned PMI information, when carrying out precoding on multiple PRG, adopts Precoding is carried out with the corresponding pre-coding matrixes of each PRG, to improve the performance of communication system.

In addition, the embodiment of the present invention can be applied to 5G uplink multiple-input, multiple-output (Multiple-Input Multiple-Output, MIMO) in system, global system for mobile communications Global System for can also be applied to Mobile Communication, GSM) and multi-carrier code division multiple access (Code Division Multiple Access, CDMA) Technology needs scene of multiple pre-coding matrix instructions for MIMO operation in uplink, and can reach mitigation control channel Burden, and its performance is made to obtain optimal effect.

In the embodiment of the present invention, the first Downlink Control Information, the first Downlink Control Information packet are sent to user terminal Include the instruction information for the multiple PRG for distributing to the user terminal and the position indication information of downlink resource；Under described Row resource sends the PMI information of multiple pre-coding matrixes corresponding with the multiple PRG to the user terminal.Due to being directed to Multiple PRG have sent the PMI information of multiple pre-coding matrixes to user terminal so that user terminal can be on different PRG Using corresponding pre-coding matrix, to improve the transmission performance of prelist code performance and communication system.

Referring to FIG. 3, Fig. 3 is the flow chart of the sending method of another PMI information provided in an embodiment of the present invention, In, downlink resource includes CCE resources, and the second Downlink Control Information, the second Downlink Control Information packet are sent by CCE resources Include the PMI information of the corresponding multiple pre-coding matrixes of multiple PRG.As shown in figure 3, the above method includes the following steps：

Step 301 sends the first Downlink Control Information to user terminal.

Wherein, first Downlink Control Information includes the instruction information for the multiple PRG for distributing to the user terminal, with And the position indication information of downlink resource, wherein the downlink resource includes CCE resources.

Wherein, the instruction information of above-mentioned multiple PRG may include the quantity for the PRG for being user terminal distribution, and each The location information of PRG.User terminal determines the position of each PRG by above-mentioned instruction information, to carry out uplink on these PRG The transmission of signal.

Optionally, first Downlink Control Information includes precoding information (Precoding information and Number of layers) domain, the precoding information domain includes the position indication information of the downlink resource.

In the embodiment, the position that above-mentioned downlink resource is sent in the precoding information domain of the first Downlink Control Information refers to Show that information need not change the format of Downlink Control Information, to drop in this way when transmitting the position indication information of downlink resource The complexity of low communication system.The content of first Downlink Control Information, as shown in table 1.

Table 1

After user terminal receives above-mentioned first Downlink Control Information, resource block distribution domain is first checked for, when according to money When source block distribution domain determination is only assigned to one PRG of user terminal, PMI information is obtained by precoding information domain, is not deposited at this time In downlink resource；When distributing domain according to resource block and determining the multiple PRG of distributing user terminal, under being obtained by precoding information domain The position indication information of row resource.Certainly, in the embodiment of the present invention, it includes downlink resource not to be limited to precoding information domain Position indication information, can also be first control information other domains include above-mentioned downlink resource position instruction believe Breath, or increase new domain in the first control information, to transmit the position indication information of above-mentioned downlink resource.

It should be noted that the embodiment can also be applied to embodiment shown in FIG. 1, and it can reach identical beneficial Effect.

Optionally, before first Downlink Control Information of transmission to user terminal, further include：

Multiple PRG are distributed for the user terminal, and are directed to the multiple PRG, select multiple pre-coding matrixes.

Such as：Network side equipment can be the user terminal multiple PRG of distribution, and can be each when distributing multiple PRG PRG distributes corresponding pre-coding matrix, such as：From precoding matrix codebook, the optimal precoding square of each PRG is selected respectively Battle array, so that the transporting of user terminal optimizes.Such as by taking a PRG as an example, network side equipment calculates precoding square The pre-coding matrix that each pre-coding matrix corresponds to the performance of the channel estimation of the PRG, and selects performance best in horizontal and vertical parity check code sheet is made For the pre-coding matrix of the PRG, other PRG can also select pre-coding matrix by this way, not repeat this.

Step 302 sends the second Downlink Control Information by CCE resources.

Wherein, second Downlink Control Information includes the PMI letters of multiple pre-coding matrixes corresponding with the multiple PRG Breath.

Wherein, above-mentioned second Downlink Control Information can be DCI format.

In the embodiment, by above-mentioned second Downlink Control Information, transmitted to user terminal corresponding with the multiple PRG Multiple pre-coding matrixes PMI information.User terminal can get above-mentioned CCE resources by the first Downlink Control Information Position indication information need not carry out blind Detecting to the second Downlink Control Information, can reduce the power consumption of user terminal.Due to logical The PMI information that the second Downlink Control Information sends multiple pre-coding matrixes is crossed, user terminal need not carry out cyclic redundancy check (Cyclic Redundancy Check, CRC) is verified, and can further decrease the power consumption of user terminal.

Preferential, Error Correction of Coding polarization code can be carried in the second Downlink Control Information, be somebody's turn to do so that user terminal uses Error Correction of Coding polarization code carries out error correction to PMI information, to improve the accuracy of PMI information transmission.

Specifically, after user terminal receives above-mentioned position indication information, determine that CCE is provided according to the position indication information Source, and the second Downlink Control Information is received in the CCE resources, obtain multiple pre-coding matrixes corresponding with the multiple PRG PMI information.User terminal determines the pre-coding matrix of each PRG according to above-mentioned PMI information, to prelist on multiple PRG When code, precoding is carried out using the corresponding pre-coding matrixes of each PRG, to improve the performance of communication system.

Optionally, the instruction information of the multiple PRG in first Downlink Control Information, according to PRG frequency into Row sequence；

The PMI information of the corresponding pre-coding matrix of the multiple PRG, is ranked up according to the frequency of PRG.

Wherein, it can be ranked up according to the sequence of frequency from low to high that the frequency of above-mentioned PRG, which is ranked up, certainly, The embodiment of the present invention is not construed as limiting this, such as is ranked up from the sequence of height according to frequency and also can be achieved on.Due to The instruction information of multiple PRG and the PMI information of the corresponding pre-coding matrixes of multiple PRG are ranked up according to the frequency of PRG, User terminal receives the instruction information of multiple PRG and above-mentioned PMI information, can determine the corresponding PRG of each PMI, and do not need The corresponding PRG of each PMI are indicated by additional instruction information, to save transport overhead.Certainly, in the embodiment of the present invention, The corresponding PRG of each PMI can also be indicated by increasing additional information, such as：Increase the mark of PRG in PMI information.

It is optionally, described before the step of Physical Downlink Shared Channel element sends the second Downlink Control Information, The method further includes：

Wireless heterogeneous networks (Radio Resource Control, RRC) signaling is sent to the user terminal, it is described RRC signaling includes the configuration information of multiple CCE resources.

Wherein, each CCE resources may include one or more CCE, and the first Downlink Control Information includes CCE moneys The CCE resources of the position indication information in source, position indication information instruction can be one or more in above-mentioned multiple CCE resources A CCE resources.In addition, the position indication information of the CCE resources in the first Downlink Control Information can be indicated for CCE moneys The position in source, or the serial number in above-mentioned multiple CCE resources.

Optionally, the position indication information of the downlink resource includes the serial number of the CCE resources；

The configuration information of the multiple CCE resources includes the starting CCE in the serial number of each CCE resources, each CCE resources Position and each CCE resources CCE for including quantity.

In the embodiment, it may be implemented to configure multiple CCE resources to user terminal in advance, when transmitting PMI information, only The serial number for needing the CCE resources of instruction transmission PMI information, can save transport overhead.In addition, due to being controlled by two downlinks Information sends the instruction information and PMI information of PRG, can mitigate the whole burden of control channel, to improve the whole of communication system Body performance.

Wherein, the configuration information of above-mentioned multiple CCE resources, as shown in table 2.

Table 2

In the embodiment, user terminal first downlink control of blind Detecting first obtains the control information of uplink, Multiple PRG are assigned with if it is user terminal, user terminal extracts precoding information domain in being controlled from first downlink, according to Position indication information in precoding information domain determines CCE resources used in the second Downlink Control Information, and then passes through detection Second Downlink Control Information obtains PMI information, and according to the PMI information, determines multiple precoding squares of network side equipment distribution Battle array, and the precoding of optimal uplink signal is carried out using multiple pre-coding matrixes on multiple PRG of distribution respectively, and will be pre- Signal after coding is sent to network side equipment by one or more transmission antenna.

Referring to FIG. 4, Fig. 4 is the flow chart of the sending method of another PMI information provided in an embodiment of the present invention, In, downlink resource includes PDSCH resources, by PDSCH corresponding with PDSCH resources, sends PMI information.As shown in figure 4, packet Include following steps：

Step 401 sends the first Downlink Control Information to user terminal.

Wherein, first Downlink Control Information includes the instruction information for the multiple PRG for distributing to the user terminal, with And the position indication information of downlink resource, wherein the downlink resource includes PDSCH resources.

In the present embodiment, the instruction information of multiple PRG may include the quantity for the PRG for being user terminal distribution, and each The location information of PRG.User terminal determines the position of each PRG by above-mentioned instruction information, to carry out uplink on above-mentioned PRG The transmission of signal.

Optionally, first Downlink Control Information includes the domain precoding information (Precoding information), institute State the position indication information that precoding information domain includes the downlink resource.

In the embodiment, above-mentioned position indication information is sent in the precoding information domain of the first Downlink Control Information, no The format for needing modification Downlink Control Information, to reduce the complexity of communication system.

Step 402 passes through PDSCH corresponding with PDSCH resources, transmission multiple pre-coding matrixes corresponding with multiple PRG PMI information.

In the present embodiment, since above-mentioned PDSCH resources can pass through the precoding information domain in the first Downlink Control Information Instruction, does not need individual Downlink Control Information and is scheduled, and multiple PMI that PUSCH signals are sent, and need not carry out CRC Verification, can save the power consumption of user terminal.Certainly, in the embodiment of the present invention, Error Correction of Coding can be added in PDSCH signals Loe-density parity-check code (Low Density Parity Check Code, LDPC), so that user terminal can use LDPC to pre- Encoder matrix instruction carries out error correction, to improve the accuracy of PMI information transmission.

Correspondingly, it after user terminal receives the position indication informations of PDSCH resources, is determined according to the position indication information PDSCH resources, and receive the PMI information of multiple pre-coding matrixes corresponding with multiple PRG in the PDSCH resources.User terminal The pre-coding matrix of each PRG is determined according to above-mentioned PMI information, thus when carrying out precoding on multiple PRG, using each PRG pairs The pre-coding matrix answered carries out precoding, to improve the performance of communication system.

Wherein, it can be ranked up according to the sequence of frequency from low to high that the frequency of above-mentioned PRG, which is ranked up, certainly, The embodiment of the present invention is not construed as limiting this, such as is ranked up from the sequence of height according to frequency and also can be achieved on.Due to The instruction information of multiple PRG and the PMI information of the corresponding pre-coding matrixes of multiple PRG are ranked up according to the frequency of PRG, User terminal receives the instruction information of multiple PRG and above-mentioned PMI information, can determine the corresponding PRG of each PMI, and do not need The corresponding PRG of each PMI are indicated by additional instruction information, can save transport overhead.Certainly, in the embodiment of the present invention, The corresponding PRG of each PMI can also be indicated by increasing additional information, such as：Increase the mark of PRG in PMI information.

Optionally, by PDSCH corresponding with PDSCH resources, multiple pre-coding matrixes corresponding with multiple PRG are sent Before PMI information, the method further includes：

RRC signaling is sent to the user terminal, the RRC signaling includes the configuration information of multiple PDSCH resources.

Wherein, each PDSCH resources may include one or more Physical Resource Block, and in the first Downlink Control Information The position indication information of the downlink resource, the corresponding PDSCH resources of the position indication information can be above-mentioned multiple PDSCH moneys One or more PDSCH resource in source.In addition, the position indication information of PDSCH resources can be in the first Downlink Control Information It is indicated for the position of the PDSCH resources.

Optionally, the position indication information of the downlink resource includes the serial number of the PDSCH resources；

The configuration information of the multiple PDSCH resources includes in the serial number of each PDSCH resources, each PDSCH resources The PRB that the position of starting Physical Resource Block (Physical Resource Block, PRB) and each PDSCH resources include Quantity.

In the embodiment, can multiple PDSCH resources be configured to user terminal in advance, when transmitting PMI information, only needed The serial number for indicating the PDSCH resources of transmission PMI information, to save transport overhead.In addition, due to passing through two downlink control letters Breath sends the instruction information and PMI information of PRG, can mitigate the whole burden of control channel, to improve the entirety of communication system Performance.

Wherein, the configuration information of multiple PDSCH resources, as shown in table 3.

Table 3

Since the configuration information of PDSCH resources includes the position of starting PRB and the PRB that each PDSCH resources include Quantity, user terminal can accurately determine transmission PMI information PDSCH resources.

Optionally, if current subframe has the PDSCH scheduling of downlink, the downlink resource is the downlink The corresponding resources of PDSCH, the position indication information of the downlink resource are used to indicate the PMI information and pass through the downlink PDSCH send.

It, can be straight if the PDSCH that current subframe, which is the user terminal, has downlink is dispatched in the embodiment Connected the corresponding resource transmission PMI informations of PDSCH of downlink.Such as：As shown in table 3, PMI information can be with downlink chain Circuit-switched data is sent together, and the position indication information instruction of the downlink resource in the first Downlink Control Information uses PDSCH resources 0.

In the embodiment, since scheduled PDSCH transmission PMI information can be used, saving can be reached in this way The effect of transfer resource.

In addition, during the present invention is implemented, it, can be to the user if network side equipment, which is user terminal, distributes a PRG Terminal sends third Downlink Control Information, and the third Downlink Control Information includes the instruction information of one PRG, Yi Jisuo State the PMI of the corresponding pre-coding matrixes of a PRG.

Referring to FIG. 5, Fig. 5 is a kind of flow chart of the method for reseptance of PMI information provided in an embodiment of the present invention, such as Fig. 5 It is shown, include the following steps：

Step 501 receives the first Downlink Control Information that network side equipment is sent.

Wherein, the first Downlink Control Information includes the instruction information of multiple PRG and the position instruction letter of downlink resource Breath.Above-mentioned first Downlink Control Information may refer to Fig. 2 to the respective description of embodiment shown in Fig. 4, not repeat herein.

Step 502, the position indication information according to downlink resource, by downlink resource receive network side equipment send with The PMI information of the corresponding multiple pre-coding matrixes of multiple PRG.

Wherein, downlink resource and its position indication information may refer to Fig. 2 to the respective description of embodiment shown in Fig. 4, It does not repeat herein.

By step 502, user terminal can receive the corresponding multiple precodings of multiple PRG of network side equipment transmission The PMI information of matrix, with the pre-coding matrix of the multiple PRG of determination, wherein the pre-coding matrix of multiple PRG may refer to Fig. 2 extremely The respective description of embodiment shown in Fig. 4, does not repeat herein, and can reach identical advantageous effect.

Step 503, on multiple PRG, respectively according to corresponding PMI information, precoding carried out to uplink signal, and to net Network side apparatus sends the signal after precoding.

Through the above steps, user terminal receives above-mentioned position indication information, is determined according to the position indication information Downlink resource is stated, and then the PMI information of the corresponding multiple pre-coding matrixes of multiple PRG is obtained in the downlink resource.Later, user Terminal determines the corresponding pre-coding matrixes of each PRG according to above-mentioned PMI information, when carrying out precoding on multiple PRG, using each The corresponding pre-coding matrixes of PRG carry out precoding, to improve the performance of communication system.

In the embodiment of the present invention, the first Downlink Control Information that network side equipment is sent, the first downlink control are received Information includes the instruction information of multiple PRG and the position indication information of downlink resource；Referred to according to the position of the downlink resource Show information, multiple precodings corresponding with the multiple PRG that the network side equipment is sent are received by the downlink resource The PMI information of matrix；On the multiple PRG, respectively according to corresponding PMI information, to uplink signal progress precoding, and to The network side equipment sends the signal after precoding.It is corresponding pre- using each PRG since user terminal is on multiple PRG Encoder matrix carries out the precoding of uplink signal, and sends the signal after precoding to the network side equipment, can improve pre- The transmission performance of coding efficiency and communication system.

It should be noted that embodiment of the present embodiment as user terminal corresponding with embodiment shown in Fig. 2, Specific embodiment may refer to embodiment related description shown in Fig. 2, and reach identical advantageous effect, in order to avoid Repeated explanation, details are not described herein again.

Referring to FIG. 6, Fig. 6 is the flow chart of the method for reseptance of another PMI information provided in an embodiment of the present invention, In, downlink resource includes CCE resources, and the network is received by the CCE resources according to the position indication information of CCE resources The second Downlink Control Information that side apparatus is sent, second Downlink Control Information includes the PMI information.On as shown in fig. 6, The method of stating includes the following steps：

Step 601 receives the first Downlink Control Information that network side equipment is sent.

Wherein, the first Downlink Control Information includes the instruction information of multiple PRG and the position indication information of CCE resources. Above-mentioned first Downlink Control Information may refer to Fig. 2 to the respective description of embodiment shown in Fig. 4, not repeat herein.

Step 602, according to the position indication information of CCE resources, by CCE resources, receive that network side equipment sends the Two Downlink Control Information.

Wherein, the second Downlink Control Information includes the PMI information of multiple pre-coding matrixes corresponding with multiple PRG.

It in the step, may be implemented to determine above-mentioned CCE resources by above-mentioned position indication information, to pass through the CCE Resource receives the second Downlink Control Information that the network side equipment is sent, to obtain PMI information.Wherein, the embodiment Specific implementation process and advantageous effect can refer to the respective description of embodiment shown in Fig. 3, not repeat herein.

Step 603, on multiple PRG, respectively according to corresponding PMI information, precoding carried out to uplink signal, and to net Network side apparatus sends the signal after precoding.

Optionally, first Downlink Control Information includes precoding information domain, and the precoding information domain includes described The position indication information of downlink resource.

Wherein, first Downlink Control Information may refer to the respective description of embodiment shown in Fig. 3, not go to live in the household of one's in-laws on getting married herein It states, and identical advantageous effect can be reached.

Optionally, according to the position indication information of the downlink resource, the network side is received by the CCE resources and is set Before the step of the second Downlink Control Information that preparation is sent, the method further includes：

The RRC signaling that the network side equipment is sent is received, the RRC signaling includes the configuration information of multiple CCE resources.

Wherein, the configuration information of multiple CCE resources and RRC signaling may refer to the respective description of embodiment shown in Fig. 3, It does not repeat herein, and identical advantageous effect can be reached.

Wherein, the configuration information of the serial number of CCE resources and multiple CCE resources may refer to the phase of embodiment shown in Fig. 3 It should be noted that do not repeat herein, and identical advantageous effect can be reached.

Correspondingly, the configuration information based on above-mentioned multiple CCE resources can include according to the first Downlink Control Information The serial number of CCE resources determines the quantity for the CCE that the position of the starting CCE of the CCE resources and the CCE resources include, in turn By above-mentioned CCE resources, the second Downlink Control Information that network side equipment is sent is received.

Wherein, above-mentioned sortord may refer to the respective description of embodiment shown in Fig. 3, not repeat herein, and can To reach identical advantageous effect.

It should be noted that embodiment of the present embodiment as the corresponding user terminal of embodiment as shown in figure 3, Specific embodiment may refer to embodiment related description shown in Fig. 3, and reach identical advantageous effect, in order to avoid Repeated explanation, details are not described herein again.

Referring to FIG. 7, Fig. 7 is the flow chart of the method for reseptance of another PMI information provided in an embodiment of the present invention, In, downlink resource includes PDSCH resources, according to the position indication information of PDSCH resources, by corresponding with the PDSCH resources PDSCH, receive the PMI information that the network side equipment is sent.As shown in fig. 7, comprises following steps：

Step 701 receives the first Downlink Control Information that network side equipment is sent.

Wherein, the first Downlink Control Information includes the instruction information of multiple PRG and the position instruction letter of PDSCH resources Breath.Above-mentioned first Downlink Control Information may refer to Fig. 2 to the respective description of embodiment shown in Fig. 4, not repeat herein.

Step 702 receives net according to the position indication information of PDSCH resources by PDSCH corresponding with PDSCH resources The PMI information for multiple pre-coding matrixes corresponding with multiple PRG that network side apparatus is sent.

It in the step, may be implemented to determine above-mentioned PDSCH resources by above-mentioned position indication information, to by described PDSCH resources receive the PMI information that the network side equipment is sent.Wherein, the specific implementation process of the embodiment and beneficial Effect can refer to the respective description of embodiment shown in Fig. 4, not repeat herein.

Step 703, on multiple PRG, respectively according to corresponding PMI information, precoding carried out to uplink signal, and to net Network side apparatus sends the signal after precoding.

Optionally, according to the position indication information of the downlink resource, by PDSCH corresponding with the PDSCH resources, Before the PMI information for receiving multiple pre-coding matrixes corresponding with the multiple PRG that the network side equipment is sent, the side Method further includes：

The RRC signaling that the network side equipment is sent is received, the RRC signaling includes multiple PDSCH resources with confidence Breath.

Wherein, the configuration information of multiple PDSCH resources and RRC signaling may refer to the corresponding theory of embodiment shown in Fig. 4 It is bright, it does not repeat herein, and identical advantageous effect can be reached.

The configuration information of the multiple PDSCH resources includes in the serial number of each PDSCH resources, each PDSCH resources The quantity for the PRB that the position of starting Physical Resource Block PRB and each PDSCH resources include.

Correspondingly, the configuration information based on above-mentioned multiple PDSCH resources can include according to the first Downlink Control Information The serial number of PDSCH resources determines the number for the PRB that the position of the starting PRB of the PDSCH resources and the PDSCH resources include Amount, and then by above-mentioned PDSCH resources, receive multiple pre-coding matrixes corresponding with multiple PRG that network side equipment is sent PMI information.

Wherein, the configuration information of the serial number of PDSCH resources and multiple PDSCH resources may refer to embodiment shown in Fig. 4 Respective description, do not repeat herein, and identical advantageous effect can be reached.

Optionally, if current subframe has the PDSCH scheduling of downlink, the downlink resource is the downlink The corresponding resources of PDSCH, the position indication information of the downlink resource are used to indicate the PMI information and pass through the downlink PDSCH send；Correspondingly, the described of the network side equipment transmission can be received by the PDSCH of the downlink PMI information.

Wherein, the position indication information of downlink resource may refer to the respective description of embodiment shown in Fig. 4, not make herein It repeats, and identical advantageous effect can be reached.

It should be noted that embodiment of the present embodiment as the corresponding user terminal of embodiment as shown in fig. 4, Specific embodiment may refer to embodiment related description shown in Fig. 4, and reach identical advantageous effect, in order to avoid Repeated explanation, details are not described herein again.

It is a kind of structure chart of network side equipment provided in an embodiment of the present invention referring to Fig. 8, Fig. 8, Fig. 2 can be realized to figure The details of the sending method of PMI information in embodiment shown in 4, and reach identical effect.As shown in figure 8, network side is set Standby 800 include：First sending module 801 and the second sending module 802, wherein：

First sending module 801, for sending the first Downlink Control Information, the first downlink control letter to user terminal Breath includes the instruction information for the multiple PRG for distributing to the user terminal and the position indication information of downlink resource；

Second sending module 802, for by the downlink resource, being sent and the multiple PRG to the user terminal The PMI information of corresponding multiple pre-coding matrixes.

Optionally, the downlink resource includes CCE resources；

Second sending module 802 is specifically used for sending the second Downlink Control Information by the CCE resources, described Second Downlink Control Information includes the PMI information.

Optionally, as shown in figure 9, the network side equipment 800 further includes：

Third sending module 803, for sending RRC signaling to the user terminal, the RRC signaling includes multiple CCE The configuration information of resource.

Optionally, the downlink resource includes PDSCH resources；

Second sending module 802, is specifically used for through PDSCH corresponding with the PDSCH resources, send with it is described The PMI information of the corresponding multiple pre-coding matrixes of multiple PRG.

Optionally, as shown in Figure 10, the network side equipment 800 further includes：

4th sending module 804, for sending RRC signaling to the user terminal, the RRC signaling includes multiple The configuration information of PDSCH resources.

Correspondingly, above-mentioned second sending module 802 is specifically used for the PDSCH by the downlink, to the user Terminal sends the PMI information of multiple pre-coding matrixes corresponding with the multiple PRG.

Optionally, as shown in figure 11, the network side equipment 800 further includes：

Distribution module 805 for distributing multiple PRG for the user terminal, and is directed to the multiple PRG, selects multiple Pre-coding matrix.

It should be noted that above-mentioned network side equipment 800 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 above-mentioned network side equipment 800 in the present embodiment, and reach identical advantageous effect, herein no longer It repeats.

It is a kind of structure chart of user terminal provided in an embodiment of the present invention referring to Figure 12, Figure 12, Fig. 5 can be realized to figure The details of the method for reseptance of PMI information in embodiment shown in 7, and reach identical effect.As shown in figure 12, user terminal 1200 include：First receiving module 1201, the second receiving module 1202 and precoding module 1203, wherein：

First receiving module 1201, the first Downlink Control Information for receiving network side equipment transmission, under described first Row control information includes the instruction information of multiple PRG and the position indication information of downlink resource；

Second receiving module 1202 passes through the downlink resource for the position indication information according to the downlink resource Receive the PMI information for multiple pre-coding matrixes corresponding with the multiple PRG that the network side equipment is sent；

Precoding module 1203, in the multiple PRG, respectively according to corresponding PMI information, to uplink signal into Row precoding, and send the signal after precoding to the network side equipment.

Optionally, the downlink resource includes CCE resources；

Second receiving module 1202 is specifically used for the position indication information according to the CCE resources, by described CCE resources, receive the second Downlink Control Information that the network side equipment is sent, and second Downlink Control Information includes described PMI information.

Optionally, as shown in figure 13, the user terminal 1200 further includes：

Third receiving module 1204, the RRC signaling sent for receiving the network side equipment, the RRC signaling include The configuration information of multiple CCE resources.

Correspondingly, second receiving module 1202 is specifically used for the configuration information based on above-mentioned multiple CCE resources, can With the serial number for the CCE resources for including according to the first Downlink Control Information, the position of the starting CCE of the CCE resources is determined, and should The quantity for the CCE that CCE resources include, and then by above-mentioned CCE resources, receive the second downlink control letter that network side equipment is sent Breath.

Optionally, the downlink resource includes PDSCH resources；

Second receiving module 1202, is specifically used for according to the PDSCH resources of the downlink resource, by with it is described The corresponding PDSCH of PDSCH resources receives multiple precoding squares corresponding with the multiple PRG that the network side equipment is sent The PMI information of battle array.

Optionally, as shown in figure 14, the user terminal 1200 further includes：

4th receiving module 1205, the RRC signaling sent for receiving the network side equipment, the RRC signaling include The configuration information of multiple PDSCH resources.

Correspondingly, second receiving module 1202 is specifically used for the configuration information based on above-mentioned multiple PDSCH resources, According to the serial number for the PDSCH resources that the first Downlink Control Information includes, the position of the starting PRB of the PDSCH resource can be determined, And the quantity of the PDSCH resources PRB that includes, and then by above-mentioned PDSCH resources, receive that network side equipment sends with institute State the PMI information of the corresponding multiple pre-coding matrixes of multiple PRG.

Correspondingly, above-mentioned second receiving module 1202 is specifically used for through the PDSCH of the downlink, described in reception The PMI information that network side equipment is sent.

It should be noted that above-mentioned user terminal 1200 can be embodiment of the method in the embodiment of the present invention in the present embodiment In arbitrary embodiment user terminal, the arbitrary embodiment of user terminal all may be used in embodiment of the method in the embodiment of the present invention To be realized by the above-mentioned user terminal 1200 in the present embodiment, and reach identical advantageous effect, details are not described herein again.

It is the structure chart of the network side equipment of application of the embodiment of the present invention referring to Figure 15, Figure 15, Fig. 2 can be realized to Fig. 4 Shown in PMI information in embodiment sending method details, and reach identical effect.As shown in figure 15, the network side Equipment 1500 includes：Processor 1501, transceiver 1502, memory 1503, user interface 1504 and bus interface, wherein：

Processor 1501 executes following process for reading the program in memory 1503：

Wherein, transceiver 1502, for sending and receiving data under the control of processor 1501.

In fig.15, bus architecture may include the bus and bridge of any number of interconnection, specifically by 1501 generation of processor The various circuits for the memory that the one or more processors and memory 1503 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 1502 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 1504, 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 1501 is responsible for bus architecture and common processing, and memory 1503 can store processor 1501 and exist Execute used data when operation.

Optionally, the downlink resource includes CCE resources；

Processor 1501 execute by the downlink resource, sent to the user terminal corresponding with the multiple PRG Multiple pre-coding matrixes PMI information, including：

The second Downlink Control Information is sent by the CCE resources, second Downlink Control Information includes the PMI letters Breath.

Optionally, before first Downlink Control Information of transmission to user terminal, processor 1501 is additionally operable to：

Radio resource control RRC signaling is sent to the user terminal, the RRC signaling includes matching for multiple CCE resources Confidence ceases.

Optionally, the downlink resource includes PDSCH resources；

By PDSCH corresponding with the PDSCH resources, multiple pre-coding matrixes corresponding with the multiple PRG are sent PMI information.

Correspondingly, processor 1501 execute by the downlink resource, to the user terminal send with it is the multiple The PMI information of the corresponding multiple pre-coding matrixes of PRG, including：

By the PDSCH of the downlink, multiple prelist corresponding with the multiple PRG is sent to the user terminal The PMI information of code matrix.

It should be noted that above-mentioned network side equipment 1500 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 above-mentioned network side equipment 1500 in the present embodiment, and reach identical advantageous effect, herein not It repeats again.

It is the structure chart of the user terminal of application of the embodiment of the present invention referring to Figure 16, Figure 16, can realizes Fig. 5 to Fig. 7 institutes The details of the method for reseptance of PMI information in the embodiment shown, and reach identical effect.As shown in figure 16, user terminal 1600 include：At least one processor 1601, memory 1602, at least one network interface 1604 and user interface 1603.Eventually Various components in end 1600 are coupled by bus system 1605.It is understood that bus system 1605 is for realizing these Connection communication between component.Bus system 1605 further includes power bus, controlling bus and shape in addition to including data/address bus State signal bus.But for the sake of clear explanation, various buses are all designated as bus system 1605 in figure 16.

Wherein, user interface 1603 may include display, keyboard or pointing device (for example, mouse, trace ball (track ball), touch-sensitive plate or touch screen etc..

It is appreciated that the memory 1602 in the embodiment of the present invention can be volatile memory or non-volatile memories Both device, or may include volatile and non-volatile memory.Wherein, nonvolatile memory can be read-only memory (Read-Only Memory, ROM), programmable read only memory (Programmable ROM, PROM), erasable programmable are only Read memory (Erasable PROM, EPROM), electrically erasable programmable read-only memory (Electrically EPROM, ) or flash memory EEPROM.Volatile memory can be random access memory (Random Access Memory, RAM), use Make External Cache.By exemplary but be not restricted explanation, the RAM of many forms is available, such as static random-access Memory (Static RAM, SRAM), dynamic random access memory (Dynamic RAM, DRAM), synchronous dynamic random-access Memory (Synchronous DRAM, SDRAM), double data speed synchronous dynamic RAM (Double Data Rate SDRAM, DDRSDRAM), it is enhanced Synchronous Dynamic Random Access Memory (Enhanced SDRAM, ESDRAM), synchronous Connect dynamic random access memory (Synchlink DRAM, SLDRAM) and direct rambus random access memory (Direct Rambus RAM, DRRAM).The memory 1602 of system and method described herein be intended to including but not limited to this A little and any other suitable type memory.

In some embodiments, memory 1602 stores following element, executable modules or data structures, or Their subset of person or their superset：Operating system 16021 and application program 16022.

Wherein, operating system 16021, including various system programs, such as ccf layer, core library layer, driving layer etc., are used for Realize various basic businesses and the hardware based task of processing.Application program 16022, including various application programs, such as matchmaker Body player (Media Player), browser (Browser) etc., for realizing various applied business.Realize that the present invention is implemented The program of example method may be embodied in application program 16022.

In embodiments of the present invention, by the program for calling memory 1602 to store or instruction, specifically, can be application The program stored in program 16022 or instruction, processor 1601 are used for：

The method that the embodiments of the present invention disclose can be applied in processor 1601, or real by processor 1601 It is existing.Processor 1601 may be a kind of IC chip, the processing capacity with signal.During realization, the above method Each step can be completed by the instruction of the integrated logic circuit of the hardware in processor 1601 or software form.Above-mentioned Processor 1601 can be general processor, digital signal processor (Digital Signal Processor, DSP), special Integrated circuit (Application Specific Integrated Circuit, ASIC), ready-made programmable gate array (Field Programmable Gate Array, FPGA) either other programmable logic device, discrete gate or transistor logic, Discrete hardware components.It may be implemented or execute disclosed each method, step and the logic diagram in the embodiment of the present invention.It is general Processor can be microprocessor or the processor can also be any conventional processor etc..In conjunction with institute of the embodiment of the present invention The step of disclosed method, can be embodied directly in hardware decoding processor and execute completion, or with the hardware in decoding processor And software module combination executes completion.Software module can be located at random access memory, and flash memory, read-only memory may be programmed read-only In the storage medium of this fields such as memory or electrically erasable programmable memory, register maturation.The storage medium is located at The step of memory 1602, processor 1601 reads the information in memory 1602, the above method is completed in conjunction with its hardware.

It is understood that embodiments described herein can use hardware, software, firmware, middleware, microcode or its It combines to realize.For hardware realization, processing unit may be implemented in one or more application-specific integrated circuit (Application Specific Integrated Circuits, ASIC), digital signal processor (Digital Signal Processing, DSP), digital signal processing appts (DSP Device, DSPD), programmable logic device (Programmable Logic Device, PLD), field programmable gate array (Field-Programmable Gate Array, FPGA), general processor, In controller, microcontroller, microprocessor, other electronic units for executing herein described function or combinations thereof.

For software implementations, it can be realized herein by executing the module (such as process, function etc.) of function described herein The technology.Software code is storable in memory and is executed by processor.Memory can in the processor or It is realized outside processor.

Optionally, the downlink resource includes CCE resources；

The position indication information according to the downlink resource that processor 1601 executes receives institute by the downlink resource The PMI information of multiple pre-coding matrixes corresponding with the multiple PRG of network side equipment transmission is stated, including：

It receives the network side equipment by the CCE resources according to the position indication information of the CCE resources and sends The second Downlink Control Information, second Downlink Control Information includes the PMI information.

Optionally, the position indication information according to the downlink resource receives the network by the CCE resources Before the second Downlink Control Information that side apparatus is sent, processor 1601 is additionally operable to：

Correspondingly, the position indication information according to the downlink resource that processor 1601 executes, is provided by the downlink Source receives the PMI information for multiple pre-coding matrixes corresponding with the multiple PRG that the network side equipment is sent, including：

Based on the configuration information of above-mentioned multiple CCE resources, the CCE resources that can include according to the first Downlink Control Information Serial number determines the quantity for the CCE that the position of the starting CCE of the CCE resources and the CCE resources include, and then by above-mentioned CCE resources receive the second Downlink Control Information that network side equipment is sent.

Optionally, the downlink resource includes PDSCH resources；

The net is received by PDSCH corresponding with the PDSCH resources according to the position indication information of the PDSCH The PMI information for multiple pre-coding matrixes corresponding with the multiple PRG that network side apparatus is sent.

Optionally, the position indication information according to the downlink resource, by corresponding with the PDSCH resources PDSCH, before the PMI information for receiving multiple pre-coding matrixes corresponding with the multiple PRG that the network side equipment is sent, Processor 1601 is additionally operable to：

Based on the configuration information of above-mentioned multiple PDSCH resources, can be provided according to the PDSCH that the first Downlink Control Information includes The serial number in source determines the quantity for the PRB that the position of the starting PRB of the PDSCH resources and the PDSCH resources include, Jin Ertong Above-mentioned PDSCH resources are crossed, the PMI letters for multiple pre-coding matrixes corresponding with the multiple PRG that network side equipment is sent are received Breath.

By the PDSCH of the downlink, the PMI information that the network side equipment is sent is received.

It should be noted that above-mentioned user terminal 1600 can be embodiment of the method in the embodiment of the present invention in the present embodiment In arbitrary embodiment user terminal, the arbitrary embodiment of user terminal all may be used in embodiment of the method in the embodiment of the present invention To be realized by the above-mentioned user terminal 1600 in the present embodiment, and reach identical advantageous effect, details are not described herein again.

Those of ordinary skill in the art may realize that lists described in conjunction with the examples disclosed in the embodiments of the present disclosure Member and algorithm steps can be realized with the combination of electronic hardware or computer software and electronic hardware.These functions are actually It is implemented in hardware or software, depends on the specific application and design constraint of technical solution.Professional technician Each specific application can be used different methods to achieve the described function, but this realization is it is not considered that exceed The scope of the present invention.

It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description, The specific work process of device and unit, can refer to corresponding processes in the foregoing method embodiment, and details are not described herein.

In embodiment provided herein, it should be understood that disclosed device and method can pass through others Mode is realized.For example, the apparatus embodiments described above are merely exemplary, for example, the division of the unit, only 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 Person is desirably integrated into another system, or some features can be ignored or not executed.Another point, shown or discussed is mutual Between coupling, direct-coupling or communication connection can be INDIRECT COUPLING or communication link by some interfaces, device or unit It connects, can be electrical, machinery or other forms.

The unit illustrated as separating component may or may not be physically separated, aobvious as unit The component shown may or may not be physical unit, you can be located at a place, or may be distributed over multiple In network element.Some or all of unit therein can be selected according to the actual needs to realize the embodiment of the present invention Purpose.

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 each unit physically exists alone, it can also be during two or more units be integrated in one unit.

It, can be with if the function is realized in the form of SFU software functional unit and when sold or used as an independent product It is stored in a computer read/write memory medium.Based on this understanding, technical scheme of the present invention is substantially in other words The part of the part that contributes to existing technology or the technical solution can be expressed in the form of software products, the meter Calculation machine software product is stored in a storage medium, including some instructions are used so that a computer equipment (can be People's computer, server or network equipment etc.) it performs all or part of the steps of the method described in the various embodiments of the present invention. And storage medium above-mentioned includes：USB flash disk, mobile hard disk, ROM, RAM, magnetic disc or CD etc. are various can to store program code Medium.

The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be subject to the protection scope in claims.

Claims

1. a kind of sending method of pre-coding matrix instruction PMI information, which is characterized in that including：

The first Downlink Control Information is sent to user terminal, first Downlink Control Information includes distributing to the user terminal Multiple physical resource group PRG instruction information and downlink resource position indication information；

By the downlink resource, the PMI of multiple pre-coding matrixes corresponding with the multiple PRG is sent to the user terminal Information.

2. the method as described in claim 1, which is characterized in that first Downlink Control Information includes precoding information domain, The precoding information domain includes the position indication information of the downlink resource.

3. the method as described in claim 1, which is characterized in that the downlink resource includes control channel element CCE resources；

It is described by the downlink resource, send multiple pre-coding matrixes corresponding with the multiple PRG to the user terminal PMI information, including：

The second Downlink Control Information is sent by the CCE resources, second Downlink Control Information includes the PMI information.

4. method as claimed in claim 3, which is characterized in that it is described to user terminal send the first Downlink Control Information it Before, further include：

Radio resource control RRC signaling is sent to the user terminal, the RRC signaling includes multiple CCE resources with confidence Breath.

5. method as claimed in claim 4, which is characterized in that the position indication information of the downlink resource includes the CCE The serial number of resource；

The configuration information of the multiple CCE resources includes the position of the starting CCE in the serial number of each CCE resources, each CCE resources It sets and the quantity of CCE that each CCE resources include.

6. the method as described in claim 1, which is characterized in that the downlink resource includes Physical Downlink Shared Channel PDSCH Resource；

By PDSCH corresponding with the PDSCH resources, the PMI of multiple pre-coding matrixes corresponding with the multiple PRG is sent Information.

7. method as claimed in claim 6, which is characterized in that it is described to user terminal send the first Downlink Control Information it Before, further include：

8. the method for claim 7, which is characterized in that the position indication information of the downlink resource includes described The serial number of PDSCH resources；

The configuration information of the multiple PDSCH resources includes the starting in the serial number of each PDSCH resources, each PDSCH resources The quantity for the PRB that the position of Physical Resource Block PRB and each PDSCH resources include.

9. method as claimed in claim 6, which is characterized in that described if current subframe has the PDSCH scheduling of downlink Downlink resource is the corresponding resources of PDSCH of the downlink, and the position indication information of the downlink resource is used to indicate institute PMI information is stated to send by the PDSCH of the downlink；

By the PDSCH of the downlink, multiple precoding squares corresponding with the multiple PRG are sent to the user terminal The PMI information of battle array.

10. the method as described in claim 1, which is characterized in that the multiple PRG's in first Downlink Control Information It indicates information, is ranked up according to the frequency of PRG；

11. the method as described in claim 1, which is characterized in that it is described to user terminal send the first Downlink Control Information it Before, further include：

12. a kind of method of reseptance of PMI information, which is characterized in that including：

The first Downlink Control Information that network side equipment is sent is received, first Downlink Control Information includes the finger of multiple PRG Show information and the position indication information of downlink resource；

According to the position indication information of the downlink resource, receive that the network side equipment sends by the downlink resource with The PMI information of the corresponding multiple pre-coding matrixes of the multiple PRG；

On the multiple PRG, respectively according to corresponding PMI information, precoding carried out to uplink signal, and to the network side Equipment sends the signal after precoding.

13. method as claimed in claim 12, which is characterized in that first Downlink Control Information includes precoding information Domain, the precoding information domain include the position indication information of the downlink resource.

14. method as claimed in claim 12, which is characterized in that the downlink resource includes CCE resources；

The position indication information according to the downlink resource receives the network side equipment by the downlink resource and sends Multiple pre-coding matrixes corresponding with the multiple PRG PMI information, including：

According to the position indication information of the CCE resources, by the CCE resources, receive that the network side equipment sends the Two Downlink Control Information, second Downlink Control Information include the PMI information.

15. method as claimed in claim 14, which is characterized in that the position indication information according to the CCE resources is led to It crosses before the step of CCE resources receive the second Downlink Control Information that the network side equipment is sent, the method is also wrapped It includes：

16. method as claimed in claim 15, which is characterized in that the position indication information of the downlink resource includes described The serial number of CCE resources；

17. method as claimed in claim 12, which is characterized in that the downlink resource includes PDSCH resources；

The net is received by PDSCH corresponding with the PDSCH resources according to the position indication information of the PDSCH resources The PMI information for multiple pre-coding matrixes corresponding with the multiple PRG that network side apparatus is sent.

18. method as claimed in claim 17, which is characterized in that the position indication information according to the downlink resource, By PDSCH corresponding with the PDSCH resources, the corresponding with the multiple PRG more of the network side equipment transmission are received Before the PMI information of a pre-coding matrix, the method further includes：

The RRC signaling that the network side equipment is sent is received, the RRC signaling includes the configuration information of multiple PDSCH resources.

19. method as claimed in claim 18, which is characterized in that the position indication information of the downlink resource includes described The serial number of PDSCH resources；

20. method as claimed in claim 12, which is characterized in that if current subframe has the PDSCH scheduling of downlink, institute The corresponding resources of PDSCH that downlink resource is the downlink are stated, the position indication information of the downlink resource is used to indicate The PMI information is sent by the PDSCH of the downlink；

21. method as claimed in claim 12, which is characterized in that the multiple PRG in first Downlink Control Information Instruction information, be ranked up according to the frequency of PRG；

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

First sending module, for sending the first Downlink Control Information to user terminal, first Downlink Control Information includes Distribute to the instruction information of multiple PRG of the user terminal and the position indication information of downlink resource；

Second sending module, for by the downlink resource, being sent to the user terminal corresponding with the multiple PRG more The PMI information of a pre-coding matrix.

23. network side equipment as claimed in claim 22, which is characterized in that first Downlink Control Information includes precoding Information field, the precoding information domain include the position indication information of the downlink resource.

24. network side equipment as claimed in claim 22, which is characterized in that the downlink resource includes CCE resources；

Second sending module is specifically used for sending the second Downlink Control Information, second downlink by the CCE resources It includes the PMI information to control information.

25. network side equipment as claimed in claim 24, which is characterized in that the network side equipment further includes：

Third sending module, for sending RRC signaling to the user terminal, the RRC signaling includes matching for multiple CCE resources Confidence ceases.

26. network side equipment as claimed in claim 25, which is characterized in that the position indication information of the downlink resource includes The serial number of the CCE resources；

27. network side equipment as claimed in claim 22, which is characterized in that the downlink resource includes PDSCH resources；

Second sending module is specifically used for, by PDSCH corresponding with the PDSCH resources, sending and the multiple PRG The PMI information of corresponding multiple pre-coding matrixes.

28. network side equipment as claimed in claim 27, which is characterized in that the network side equipment further includes：

4th sending module, for sending RRC signaling to the user terminal, the RRC signaling includes multiple PDSCH resources Configuration information.

29. network side equipment as claimed in claim 28, which is characterized in that the position indication information of the downlink resource includes The serial number of the PDSCH resources；

30. network side equipment as claimed in claim 22, which is characterized in that if current subframe has the PDSCH of downlink Scheduling, the downlink resource are the corresponding resources of PDSCH of the downlink, and the position indication information of the downlink resource is used It is sent by the PDSCH of the downlink in the instruction PMI information；

Second sending module, is specifically used for through the PDSCH of the downlink, to the user terminal send with it is described The PMI information of the corresponding multiple pre-coding matrixes of multiple PRG.

31. network side equipment as claimed in claim 22, which is characterized in that described more in first Downlink Control Information The instruction information of a PRG, is ranked up according to the frequency of PRG；

32. network side equipment as claimed in claim 22, which is characterized in that the network side equipment further includes：

Distribution module for distributing multiple PRG for the user terminal, and is directed to the multiple PRG, selects multiple precoding squares Battle array.

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

First receiving module, the first Downlink Control Information for receiving network side equipment transmission, the first downlink control letter Breath includes the instruction information of multiple PRG and the position indication information of downlink resource；

Second receiving module, for the position indication information according to the downlink resource, described in downlink resource reception The PMI information for multiple pre-coding matrixes corresponding with the multiple PRG that network side equipment is sent；

Precoding module, in the multiple PRG, respectively according to corresponding PMI information, prelisting to uplink signal Code, and send the signal after precoding to the network side equipment.

34. user terminal as claimed in claim 33, which is characterized in that first Downlink Control Information includes precoding letter Domain is ceased, the precoding information domain includes the position indication information of the downlink resource.

35. user terminal as claimed in claim 33, which is characterized in that the downlink resource includes CCE resources；

Second receiving module is specifically used for being connect by the CCE resources according to the position indication information of the CCE resources The second Downlink Control Information that the network side equipment is sent is received, second Downlink Control Information includes the PMI information.

36. user terminal as claimed in claim 35, which is characterized in that the user terminal further includes：

Third receiving module, the RRC signaling sent for receiving the network side equipment, the RRC signaling include multiple CCE moneys The configuration information in source.

37. user terminal as claimed in claim 36, which is characterized in that the position indication information of the downlink resource includes institute State the serial number of CCE resources；

38. user terminal as claimed in claim 33, which is characterized in that the downlink resource includes PDSCH resources；

Second receiving module, is specifically used for according to the position indication informations of the PDSCH resources, by with the PDSCH The corresponding PDSCH of resource receives multiple pre-coding matrixes corresponding with the multiple PRG that the network side equipment is sent PMI information.

39. user terminal as claimed in claim 38, which is characterized in that the user terminal further includes：

4th receiving module, the RRC signaling sent for receiving the network side equipment, the RRC signaling includes multiple PDSCH The configuration information of resource.

40. user terminal as claimed in claim 39, which is characterized in that the position indication information of the downlink resource includes institute State the serial number of PDSCH resources；

41. user terminal as claimed in claim 33, which is characterized in that if current subframe has the PDSCH tune of downlink Degree, the downlink resource are the corresponding resources of PDSCH of the downlink, and the position indication information of the downlink resource is used for Indicate that the PMI information is sent by the PDSCH of the downlink；

Second receiving module is specifically used for the PDSCH by the downlink, receives what the network side equipment was sent The PMI information.

42. user terminal as claimed in claim 33, which is characterized in that the multiple in first Downlink Control Information The instruction information of PRG, is ranked up according to the frequency of PRG；

43. a kind of Transmission system of PMI information, which is characterized in that including the network as described in any one of claim 22 to 32 Side apparatus and the user terminal as described in any one of claim 33 to 42.