CN109150427A

CN109150427A - A kind of signal processing method, device, electronic equipment and computer readable storage medium

Info

Publication number: CN109150427A
Application number: CN201710453568.2A
Authority: CN
Inventors: 李辉; 高秋彬; 塔玛拉卡·拉盖施; 陈润华; 苏昕
Original assignee: China Academy of Telecommunications Technology CATT
Current assignee: China Academy of Telecommunications Technology CATT; Datang Mobile Communications Equipment Co Ltd
Priority date: 2017-06-15
Filing date: 2017-06-15
Publication date: 2019-01-04
Anticipated expiration: 2037-06-15
Also published as: CN109150427B

Abstract

The present invention provides a kind of signal processing method, device, electronic equipment and computer readable storage medium, is related to field of communication technology, to improve PT-RS to the compensation performance of phase noise.Signal processing method of the invention includes: to obtain the precoding weight of T DMRS port in the corresponding DMRS port group in the port target PT-RS for the port either objective PT-RS in one or more ports PT-RS；The port target PT-RS maps to N number of subcarrier on frequency domain；For the PT-RS signal to be transmitted on N number of subcarrier, according to scheduled repeating query mode, the precoding weight that T DMRS port is recycled carries out precoding to PT-RS signal to be transmitted；PT-RS signal after being utilized respectively N number of subcarrier transfer pre-coding.The present invention can be improved PT-RS to the compensation performance of phase noise.

Description

A kind of signal processing method, device, electronic equipment and computer readable storage medium

Technical field

The present invention relates to field of communication technology more particularly to a kind of signal processing method, device, electronic equipment and computers Readable storage medium storing program for executing.

Background technique

In NR (New Radio, newly eat dishes without rice or wine) system, frequency band that Phase Tracking reference signal (PT-RS) is dispatched in user Interior transmission, it is different according to its frequency domain density, it can each PRB (physical resource block Physical Resource Block), every 2 PRB or every 4 PRB mapping is primary, and in the PRB there are PT-RS, and each PT-RS port mapping a to son carries Wave.Corresponding one group of DMRS (Demodulation Reference Signal, the demodulated reference signal) port in each port PT-RS, Each DMRS port in group is influenced by same phase noise source.This port PT-RS is for each end DMRS in compensation group The phase noise of mouth.Multiple source of phase noise if it exists then need multiple ports PT-RS.

Similar with DMRS, PT-RS is also required to transmit after precoding.In order to compensate for the influence of phase noise, PT-RS makes Precoding used in precoding and one group of DMRS port corresponding to this port PT-RS is related.Meanwhile in order to guarantee Compensation precision, PT-RS should be mapped on the subcarrier where DMRS port group corresponding thereto.

It is in the prior art a kind of to be achieved in that the predefined port PT-RS uses in DMRS port group corresponding thereto A fixed DMRS port used in precoding it is identical, and map so far on the subcarrier where DMRS port.This is solid Fixed DMRS port can be the smallest DMRS port of number in group.

In DMRS port group corresponding to one port PT-RS, since precoding weight is different, different DMRS ports can The different characteristic of channel can be undergone.If PT-RS is using the precoding of a fixed port in DMRS port group, if this port The characteristic of channel of experience is poor, then having lower signal-to-noise ratio in receiving end, to influence compensation of the PT-RS to phase noise Performance.

Summary of the invention

In view of this, the present invention provides a kind of signal processing method, device, electronic equipment and computer-readable storage medium Matter, to improve PT-RS to the compensation performance of phase noise.

In order to solve the above technical problems, the present invention provides a kind of signal processing method, it is applied to transmitting terminal, the transmitting terminal With one or more ports Phase Tracking reference signal PT-RS, which comprises

For the port either objective PT-RS in one or more of ports PT-RS, the end the target PT-RS is obtained The precoding weight of T DMRS port in the corresponding DMRS port group of mouth；The port the target PT-RS maps to N on frequency domain A subcarrier；

Institute is recycled according to scheduled repeating query mode for the PT-RS signal to be transmitted on N number of subcarrier The precoding weight for stating T DMRS port carries out precoding to the PT-RS signal to be transmitted；

PT-RS signal after being utilized respectively N number of subcarrier transfer pre-coding；

Wherein, N is natural number, and T is integer and 1≤T≤L, L are the corresponding DMRS port group in the port the target PT-RS The total number of interior DMRS port.

Wherein, the PT-RS signal to be transmitted on N number of subcarrier is followed according to scheduled repeating query mode The step of ring carries out precoding to the PT-RS signal to be transmitted using the precoding weight of the T DMRS port, packet It includes:

PT-RS signal to be transmitted on N number of subcarrier is followed according to the sequence of the frequency domain of N number of subcarrier Ring carries out precoding to PT-RS signal to be transmitted using the precoding weight of the T DMRS port.

N number of subcarrier is divided at least two subcarrier groups according to the sequence of the frequency domain of N number of subcarrier；

For the PT-RS signal to be transmitted in each subcarrier group, a port in the T DMRS port is used Precoding weight carries out precoding to PT-RS signal to be transmitted；The T DMRS is recycled between each subcarrier group The precoding weight of port carries out precoding to PT-RS signal to be transmitted.

The T are recycled according to the sequence of time domain to the PT-RS signal to be transmitted on N number of subcarrier The precoding weight of DMRS port carries out precoding to PT-RS signal to be transmitted.

Wherein, the sub-carrier positions of each transmission PT-RS signal, and the subcarrier with each transmission PT-RS signal It is identical using the sub-carrier positions where the DMRS port signal of same precoding weight.

Wherein, the method also includes:

The corresponding relationship of the port PT-RS and DMRS port is sent to the receiving end；

And/or the repeating query mode is sent to receiving end.

Wherein, in the precoding for obtaining T DMRS port in the corresponding DMRS port group in the port the target PT-RS Before weight, the method also includes:

Obtain the repeating query mode arranged in advance with receiving end.

Second aspect, the embodiment of the present invention provide a kind of signal processing method, are applied to receiving end, which comprises

According to the corresponding relationship of the port PT-RS and DMRS port of repeating query mode and transmitting terminal, multiple ports are received PT-RS signal；

Channel estimation is carried out to the PT-RS signal of each port, obtains the every of the PT-RS signal for transmitting each port The channel estimation value of a subcarrier；

According to the channel estimation value of each subcarrier and the corresponding relationship of the port PT-RS and DMRS port, Determine phase change estimated value；

Obtain the channel estimation results of DMRS port；

Phase compensation is carried out according to channel estimation results of the phase change estimated value to the DMRS port；

Wherein, the PT-RS signal of the multiple port is transmitting terminal according to the repeating query mode, and T DMRS is recycled The precoding weight of port carries out precoding acquisition to PT-RS signal to be transmitted, and T is integer and 1≤T≤L, L are T The total number of DMRS port in the corresponding DMRS port group of DMRS port.

Wherein, described according to the channel estimation value of each subcarrier and the port PT-RS and DMRS port Corresponding relationship, the step of determining phase change estimated value, comprising:

Obtain the channel estimation value of each DMRS port on each subcarrier；

By on the signal estimated value of each subcarrier of each port PT-RS and each subcarrier with it is described The quotient of the channel estimation value of the corresponding DMRS port in each port PT-RS, as the phase change on each subcarrier Estimated value；

Phase change estimated value is determined according to the phase change estimated value on each subcarrier.

Wherein, the phase change estimated value according on each subcarrier determines the step of phase change estimated value Suddenly, comprising:

Using the average value of the phase change estimated value on all subcarriers as the phase change estimated value；Or by mesh The average value of the phase change estimated value of subcarrier is marked as the phase change estimated value；

Wherein, the target sub-carriers are the subcarrier that channel quality meets preset condition；Or the target sub-carriers For be used for transmission the corresponding port PT-RS of specified DMRS port PT-RS signal subcarrier.

Wherein, described to carry out phase benefit according to channel estimation results of the phase change estimated value to the DMRS port The step of repaying include:

Using the product of the channel estimation results of the phase change estimated value and the DMRS port as phase compensation Channel estimation results afterwards.

Wherein, the method also includes:

User data demodulation is carried out using the channel estimation results of the DMRS port after phase compensation.

Wherein, the method also includes:

Receive the repeating query mode or obtain the wheel arranged in advance with the transmitting terminal that the transmitting terminal is sent Follow mode；Receive the corresponding relationship of the port PT-RS and DMRS port that the transmitting terminal is sent.

The third aspect, the embodiment of the present invention provide a kind of signal processing apparatus, are applied to transmitting terminal, and the transmitting terminal has One or more ports Phase Tracking reference signal PT-RS, comprising:

First obtains module, for obtaining for the port either objective PT-RS in one or more of ports PT-RS Take the precoding weight of T DMRS port in the corresponding DMRS port group in the port the target PT-RS；The end the target PT-RS Mouth maps to N number of subcarrier on frequency domain；

Precoding module, for for the PT-RS signal to be transmitted on N number of subcarrier, according to scheduled repeating query Mode, the precoding weight that the T DMRS port is recycled carry out precoding to the PT-RS signal to be transmitted；

Transmission module, for being utilized respectively the PT-RS signal after N number of subcarrier transfer pre-coding；

Wherein, the precoding module is specifically used for, to the PT-RS signal to be transmitted on N number of subcarrier, according to The precoding weight of the T DMRS port is recycled to PT-RS to be transmitted in the sequence of the frequency domain of N number of subcarrier Signal carries out precoding.

Wherein, the precoding module includes:

Submodule is divided, for N number of subcarrier to be divided at least according to the sequence of the frequency domain of N number of subcarrier Two sub- carrier wave sets；

Precoding submodule, for using the T DMRS for the PT-RS signal to be transmitted in each subcarrier group The precoding weight of a port in port carries out precoding to PT-RS signal to be transmitted；It is followed between each subcarrier group Ring carries out precoding to PT-RS signal to be transmitted using the precoding weight of the T DMRS port.

Wherein, the precoding module is specifically used for, to the PT-RS signal to be transmitted on N number of subcarrier, according to The sequence of time domain, the precoding weight that the T DMRS port is recycled carry out precoding to PT-RS signal to be transmitted.

Wherein, described device further include:

Sending module, for sending the corresponding relationship of the port PT-RS and DMRS port to receiving end；And/or to receiving end Send the repeating query mode.

Wherein, described device further include:

Second obtains module, for obtaining the repeating query mode arranged in advance with receiving end.

Fourth aspect, the embodiment of the present invention provide a kind of signal processing apparatus, are applied to receiving end, comprising:

First receiving module, for being closed according to the port PT-RS of repeating query mode and transmitting terminal and the corresponding of DMRS port System, receives the PT-RS signal of multiple ports；

First obtains module, carries out channel estimation for the PT-RS signal to each port, obtains and transmit each end The channel estimation value of each subcarrier of the PT-RS signal of mouth；

Determining module, for according to the channel estimation value of each subcarrier and the port PT-RS and the end DMRS The corresponding relationship of mouth, determines phase change estimated value；

Second obtains module, for obtaining the channel estimation results of DMRS port；

Phase compensation block, for according to the phase change estimated value to the channel estimation results of the DMRS port into Row phase compensation；

Wherein, the determining module includes:

First acquisition submodule, for obtaining the channel estimation value of each DMRS port on each subcarrier；

Computational submodule, for by the signal estimated value of each subcarrier of each port PT-RS and described each The quotient of the channel estimation value of DMRS port corresponding with each port PT-RS on subcarrier, carries as every height Phase change estimated value on wave；

Submodule is determined, for determining that phase change is estimated according to the phase change estimated value on each subcarrier Value.

Wherein, the determining submodule is specifically used for, and the average value of the phase change estimated value on all subcarriers is made For the phase change estimated value；Or using the average value of the phase change estimated value of target sub-carriers as the phase change Estimated value；

Wherein, the phase compensation block is specifically used for, and utilizes the phase change estimated value and the DMRS port The product of channel estimation results is as the channel estimation results after phase compensation.

Wherein, described device further include:

Data demodulation module, for using the channel estimation results of the DMRS port after phase compensation to carry out user data solution It adjusts.

Wherein, described device further include:

Second receiving module, for receiving the repeating query mode or obtain and the transmitting terminal that the transmitting terminal is sent The repeating query mode arranged in advance；And receive the correspondence of the port PT-RS and DMRS port that the transmitting terminal is sent Relationship.

5th aspect, the embodiment of the present invention provide a kind of electronic equipment, including memory, processor and are stored in described deposit On reservoir and the computer program that can run on the processor；The processor realizes following step when executing described program It is rapid:

For the port either objective PT-RS in one or more ports PT-RS, the port pair the target PT-RS is obtained The precoding weight of T DMRS port in the DMRS port group answered；The port the target PT-RS maps to N number of son on frequency domain Carrier wave；

6th aspect, the embodiment of the present invention provides a kind of computer readable storage medium, for storing computer program, institute It states computer program and can be executed by processor and perform the steps of

7th aspect, the embodiment of the present invention provide a kind of electronic equipment, including memory, processor and are stored in described deposit On reservoir and the computer program that can run on the processor；The processor realizes following step when executing described program It is rapid:

Obtain the channel estimation results of DMRS port；

Eighth aspect, the embodiment of the present invention provide a kind of computer readable storage medium, for storing computer program, institute It states computer program and can be executed by processor and perform the steps of

Obtain the channel estimation results of DMRS port；

The advantageous effects of the above technical solutions of the present invention are as follows:

In embodiments of the present invention, when transmitting terminal carries out precoding to PT-RS signal to be transmitted, for described The port either objective PT-RS in one or more ports PT-RS obtains the corresponding DMRS port in the port the target PT-RS The precoding weight of T DMRS port in group, repeating query believe PT-RS to be transmitted using the precoding weight of T DMRS port Number precoding is carried out, so that the port PT-RS may make to traverse all characteristic of channel, avoids and use a fixation in the prior art The precoding of DMRS port to the poor channel PT-RS signal the problem of, ensure that PT-RS signal to phase always The compensation performance of position noise.

Detailed description of the invention

Fig. 1 is the flow chart of the signal processing method of the embodiment of the present invention；

Fig. 2 is the flow chart of the signal processing method of the embodiment of the present invention；

Fig. 3 is the schematic diagram that frequency domain poll is pressed in the embodiment of the present invention；

Fig. 4 is the schematic diagram that time domain poll is pressed in the embodiment of the present invention；

Fig. 5 is the schematic diagram of the signal processing apparatus of the embodiment of the present invention；

Fig. 6 is the schematic diagram of the precoding module of the embodiment of the present invention；

Fig. 7 is the structure chart of the signal processing apparatus of the embodiment of the present invention；

Fig. 8 is the another structure chart of the signal processing apparatus of the embodiment of the present invention；

Fig. 9 is the schematic diagram of the signal processing apparatus of the embodiment of the present invention；

Figure 10 is the schematic diagram of the determining module of the embodiment of the present invention；

Figure 11 is the structure chart of the signal processing apparatus of the embodiment of the present invention；

Figure 12 is the another structure chart of the signal processing apparatus of the embodiment of the present invention；

Figure 13 is the schematic diagram of the electronic equipment of the embodiment of the present invention；

Figure 14 is the schematic diagram of the electronic equipment of the embodiment of the present invention.

Specific embodiment

Below in conjunction with drawings and examples, specific embodiments of the present invention will be described in further detail.Following reality Example is applied for illustrating the present invention, but is not intended to limit the scope of the invention.

As shown in Figure 1, the signal processing method of the embodiment of the present invention, is applied to transmitting terminal, the transmitting terminal has one Or multiple ports Phase Tracking reference signal PT-RS, which comprises

Step 101, for the port either objective PT-RS in one or more of ports PT-RS, obtain the target The precoding weight of T DMRS port in the corresponding DMRS port group in the port PT-RS；The port the target PT-RS is on frequency domain Map to N number of subcarrier.

Wherein, the either port of multiple ports PT-RS all can be used as the port target PT-RS in this.N number of subcarrier It is distributed on N number of PRB, N is natural number, and T is integer and 1≤T≤L, L are the corresponding DMRS port in the port the target PT-RS The total number of DMRS port in group.

It should be noted that when T value is 1, it is meant that can arbitrarily select a DMRS from T DMRS port The precoding weight of port, without the fixed precoding weight for selecting some DMRS port.

Step 102 follows the PT-RS signal to be transmitted on N number of subcarrier according to scheduled repeating query mode Ring carries out precoding to the PT-RS signal to be transmitted using the precoding weight of the T DMRS port.

In embodiments of the present invention, for each port PT-RS, repeating query uses its correspondence on frequency domain and/or time domain The precoding of T DMRS port in DMRS port group, so that the channel that this port PT-RS traverses T DMRS port is special Property, guarantee PT-RS to the compensation performance of phase noise.

For example, the repeating query on frequency domain of the PT-RS on N number of subcarrier uses the precoding of T DMRS port, it is assumed that T=3. So, the precoding of the 1st, 2,3 DMRS port is recycled in the PT-RS on N number of subcarrier on frequency domain；Until determining all The precoding of N number of subcarrier.

Specifically, here, to the PT-RS signal to be transmitted on N number of subcarrier, according to N number of subcarrier The sequence of frequency domain, the precoding weight that the T DMRS port is recycled carry out precoding to PT-RS signal to be transmitted.

Alternatively, here, N number of subcarrier is divided at least two according to the sequence of the frequency domain of N number of subcarrier Subcarrier group；For the PT-RS signal to be transmitted in each subcarrier group, a port in the T DMRS port is used Precoding weight, to PT-RS signal to be transmitted carry out precoding；The T are recycled between each subcarrier group The precoding weight of DMRS port carries out precoding to PT-RS signal to be transmitted.

Alternatively, here, according to the sequence of time domain, circulation makes to the PT-RS signal to be transmitted on N number of subcarrier Precoding is carried out to PT-RS signal to be transmitted with the precoding weight of the T DMRS port.

Step 103, the PT-RS signal being utilized respectively after N number of subcarrier transfer pre-coding.

For above process, it is assumed that transmitting terminal have multiple ports PT-RS, below by taking a port PT-RS as an example into Row explanation.The transmission plan of other ports is identical, repeats no more.Assuming that in the corresponding DMRS port group in this port PT-RS Include M DMRS port, port numbering P0, P1 ..., PM-1.According to the scheduling bandwidth of user, this port PT-RS is in frequency domain On map on N number of subcarrier, this N number of subcarrier is distributed on N number of PRB, and each PRB maps a subcarrier.

Repeating query is using the precoding of M DMRS port on frequency domain by PT-RS on N number of subcarrier, this repeating query mode is by being System is predefined.The repeating query mode can be and be carried out repeating query as unit of subcarrier, that is, press each subcarrier of sequence of frequency domain The precoding of the port P0, the precoding ... of the port P1, the precoding of the port PM-1, later again from the port P0 are successively used respectively Precoding start the cycle over, until determining the precoding of all N number of subcarriers.

Repeating query is carried out as unit of subcarrier group alternatively, can also be, i.e., N number of subcarrier is divided into M according to the sequence of frequency domain Group, first group includes N1 subcarrier, and using the precoding of the port P0, second group includes N2 subcarrier, uses the port P1 Precoding ..., M group includes NM subcarrier, using the precoding of the port PM-1, wherein N1+N2+ ...+NM=N.

Alternatively, PT-RS precoding of the repeating query using M DMRS port in the time domain on N number of subcarrier, this repeating query mode It is predefined by system.The repeating query mode can carry out repeating query as unit of a time interval, i.e., between first time Every interior, N number of subcarrier uses the precoding of the port P0, and in second time interval, N number of subcarrier is prelisted using the port P1 Code is followed since the precoding of the port P0 later until N number of subcarrier uses the precoding of the port PM-1 in m-th time interval Ring, until user data transmission is completed.One time interval can be an OFDM (Orthogonal Frequency Division Multiplexing, orthogonal frequency division multiplexing) symbol or a time slot.

In embodiments of the present invention, the repeating query mode can be predefined i.e. as well known to transmitting terminal and receiving end as system, Or signaled receiving end is passed through by transmitting terminal.

On the basis of the above embodiments, in order to further increase efficiency, the method may also include following arbitrary steps Combination: send the repeating query mode to receiving end；The port PT-RS is sent to the receiving end and the corresponding of DMRS port is closed System.

On the basis of the above embodiments, in order to further increase data transmission efficiency, the method may also include that acquisition The repeating query mode arranged in advance with receiving end.

As shown in Fig. 2, the signal processing method of the embodiment of the present invention, is applied to receiving end, which comprises

Step 201, the corresponding relationship according to the port PT-RS and DMRS port of repeating query mode and transmitting terminal, receive more The PT-RS signal of a port.

Step 202 carries out channel estimation to the PT-RS signal of each port, obtains the PT-RS for transmitting each port The channel estimation value of each subcarrier of signal.

In this step, the channel estimation value of each DMRS port on each subcarrier is obtained, by each PT-RS It is corresponding with each port PT-RS in the signal estimated value of each subcarrier of port and each subcarrier The quotient of the channel estimation value of DMRS port, as the phase change estimated value on each subcarrier；According to every height Phase change estimated value on carrier wave determines phase change estimated value.

Specifically, the average value of the phase change estimated value on all subcarriers can be estimated as the phase change Value；Or using the average value of the phase change estimated value of target sub-carriers as the phase change estimated value；Wherein, the mesh Mark subcarrier is the subcarrier that channel quality meets preset condition；Or the target sub-carriers are to be used for transmission specified DMRS The subcarrier of the PT-RS signal of the corresponding port PT-RS in port.

Step 203, according to the channel estimation value of each subcarrier and the port PT-RS and DMRS port Corresponding relationship determines phase change estimated value.

Step 204, the channel estimation results for obtaining DMRS port.

Wherein, obtain the modes of the channel estimation results of DMRS port with it is in the prior art identical.

Step 205 carries out phase benefit according to channel estimation results of the phase change estimated value to the DMRS port It repays.

Here, using the product of the channel estimation results of phase change estimated value and DMRS port as in scheduling bandwidth Compensated channel estimation results.

On the basis of the above embodiments, to further increase efficiency, it may also include the combination of following arbitrary steps: receiving The repeating query mode or obtain the repeating query mode arranged in advance with the transmitting terminal that the transmitting terminal is sent；Receive institute State the corresponding relationship of the port PT-RS and DMRS port of transmitting terminal transmission.

In order to handle data, the letter of the DMRS port after phase compensation is also can be used in improve data transfer efficiency Road estimated result carries out user data demodulation.

Below in an example, it is assumed that transmitting terminal transmits 2 port PT-RS.User data spread with 8 it is defeated, i.e., with 8 DMRS port.Wherein, the corresponding DMRS port group in the port PT-RS 0 includes DMRS port 0-3, the corresponding DMRS in the port PT-RS 1 Port set includes DMRS port 4-7.Assuming that according to the relationship of scheduled user's scheduling bandwidth and PT-RS frequency domain density, PT-RS exists Each PRB is transmitted.

In transmitting terminal, using the scheme of frequency domain repeating query, as shown in figure 3, using DMRS on PRB0 for the port PT-RS 0 The precoding of port 0, and map on the subcarrier where DMRS port 0 (subcarrier 0)；DMRS port 1 is used on PRB1 Precoding, and map on the subcarrier where DMRS port 1；The precoding of DMRS port 2 is used on PRB2, and is mapped To the subcarrier where DMRS port 2；The precoding of DMRS port 3 is used on PRB3, and is mapped to where DMRS port 3 Subcarrier on, so far complete a frequency-domain circular；Restart repeating query on PRB4, using the precoding of DMRS port 0, and It maps on the subcarrier at 0 place of DMRS port.It circuits sequentially by the above circulation law to entire scheduling bandwidth.

For the port PT-RS 1, the precoding of DMRS port 4 is used on PRB0, and maps to 4 place of DMRS port (since DMRS port 0 and port 4 use identical subcarrier, in order to guarantee between the port 0 of PT-RS and port 1 on subcarrier Frequency division multiplexing, therefore map on subcarrier 4)；The precoding of DMRS port 5 is used on PRB1, and maps to the end DMRS On subcarrier where mouth 5；The precoding of DMRS port 6 is used on PRB2, and maps to the subcarrier where DMRS port 6 On；The precoding of DMRS port 7 is used on PRB3, and is mapped on the subcarrier at 7 place of DMRS port, is so far completed primary Frequency-domain circular；Restart repeating query on PRB4, using the precoding of DMRS port 4, and maps to the son where DMRS port 4 On carrier wave.It circuits sequentially by the above circulation law to entire scheduling bandwidth, and is transmitted.

In receiving end, mainly comprise the following processes:

(1) PT-RS for receiving 2 ports on scheduling bandwidth, carries out channel estimation to the PT-RS of each port respectively, obtains Obtain the channel estimation value on corresponding subcarrier.The estimated result for the PT-RS being located on OFDM symbol l subcarrier k is expressed as P_k,l。

(2) result of the channel estimation for the DMRS being located on 3 subcarrier k of OFDM symbol is expressed as H_k,3, calculate separately OFDM symbol l=4~12 are as follows relative to the phase change in OFDM symbol 3:

(3) to the port PT-RS 0, by the phase change that (assuming that sharing M subcarrier) estimates on the subcarrier where it Carry out the average phase change estimation obtained on scheduling bandwidth, it may be assumed that

Alternatively, the phase change that several subcarriers that selection signal-to-noise ratio is greater than a certain threshold value estimate carries out average adjusted The phase change estimation in bandwidth is spent, is also possible to using the son where a certain or certain several DMRS port precoding PT-RS The phase change that carrier estimation goes out carries out average (such as the subcarrier where the PT-RS using the precoding of DMRS port 0), these Subcarrier signal-to-noise ratio with higher.

The similar phase change estimated result that can obtain the port PT-RS 1.

(4) channel estimation of DMRS is compensated using above-mentioned phase change estimated result.

For the channel estimation results H of DMRS port (port 0-3) corresponding with the port PT-RS 0_k,3It usesCarry out letter Road compensation, obtains the compensated channel estimation results in scheduling bandwidth, it is similar, the port PT-RS 1 can be obtained The compensated channel estimation results of corresponding DMRS port (4-7).Number of users is carried out using compensated channel estimation results According to demodulation.

In transmitting terminal, using the scheme of time domain repeating query, as shown in figure 4, for the port PT-RS 0, in all of the first time slot The precoding of DMRS port 0 is used on PRB, and is mapped on the subcarrier at 0 place of DMRS port；In all of the second time slot The precoding of DMRS port 1 is used on PRB, and is mapped on the subcarrier at 1 place of DMRS port；To owning for the 4th time slot The precoding of DMRS port 3 is used on PRB, and is mapped on the subcarrier at 3 place of DMRS port, and one cycle is so far completed. Next time slot restarts to recycle using the precoding of DMRS port 0.For the port PT-RS 1, in all PRB of the first time slot On using DMRS port 4 precoding, and map on the subcarrier where DMRS port 4；On all PRB of the second time slot Using the precoding of DMRS port 5, and map on the subcarrier at 5 place of DMRS port；Make on to all PRB of the 4th time slot It with the precoding of DMRS port 7, and maps on the subcarrier where DMRS port 7, so far completes one cycle.Next time slot Restart to recycle using the precoding of DMRS port 4.It is circuited sequentially by the above circulation law until user data transmission is completed.

In receiving end, mainly comprise the following processes:

Alternatively, the phase change that several subcarriers that selection signal-to-noise ratio is greater than a certain threshold value estimate carries out average adjusted The phase change estimation in bandwidth is spent, is also possible to using the son where a certain or certain several DMRS port precoding PT-RS The phase change that carrier estimation goes out carries out average (such as the subcarrier where the PT-RS using the precoding of DMRS port 0), these Subcarrier signal-to-noise ratio with higher.The similar phase change estimated result that can obtain the port PT-RS 1.

For the channel estimation results H of DMRS port (port 0-3) corresponding with the port PT-RS 0_k,3It usesCarry out letter Road compensation, obtains the compensated channel estimation results in scheduling bandwidthSimilar, the port PT-RS 1 can be obtained The compensated channel estimation results of corresponding DMRS port (4-7).Number of users is carried out using compensated channel estimation results According to demodulation.

In embodiments of the present invention, for each port PT-RS, repeating query uses its correspondence on frequency domain and/or time domain The precoding of each DMRS port in DMRS port group, so that this port PT-RS traverses all characteristic of channel.It avoids Using the precoding of a fixed DMRS port thus always the poor channel PT-RS the problem of in existing scheme, It ensure that PT-RS to the compensation performance of phase noise.

As shown in figure 5, the signal processing apparatus of the embodiment of the present invention, is applied to transmitting terminal, the transmitting terminal has one Or multiple ports Phase Tracking reference signal PT-RS, comprising:

First obtains module 501, for for the port either objective PT-RS in one or more of ports PT-RS, Obtain the precoding weight of T DMRS port in the corresponding DMRS port group in the port the target PT-RS；The target PT-RS Port maps to N number of subcarrier on frequency domain；Precoding module 502, for for be transmitted on N number of subcarrier The precoding weight of the T DMRS port is recycled to described to be transmitted according to scheduled repeating query mode in PT-RS signal PT-RS signal carry out precoding；Transmission module 503, for being utilized respectively the PT- after N number of subcarrier transfer pre-coding RS signal；

Wherein, the precoding module 502 is specifically used for, to the PT-RS signal to be transmitted on N number of subcarrier, According to the sequence of the frequency domain of N number of subcarrier, the precoding weight of the T DMRS port is recycled to be transmitted PT-RS signal carries out precoding.

As shown in fig. 6, the precoding module 502 can include:

Submodule 5021 is divided, for N number of subcarrier to be divided into according to the sequence of the frequency domain of N number of subcarrier At least two subcarrier groups；Precoding submodule 5022, for making for the PT-RS signal to be transmitted in each subcarrier group With the precoding weight of a port in the T DMRS port, precoding is carried out to PT-RS signal to be transmitted；Each The precoding weight that the T DMRS port is recycled between subcarrier group carries out precoding to PT-RS signal to be transmitted.

Wherein, the precoding module 502 is specifically used for, to the PT-RS signal to be transmitted on N number of subcarrier, According to the sequence of time domain, the precoding weight that the T DMRS port is recycled prelists to PT-RS signal to be transmitted Code.

As shown in fig. 7, described device further include: sending module 504, for sending the port PT-RS and DMRS to receiving end The corresponding relationship of port；And/or the repeating query mode is sent to receiving end.

As shown in figure 8, described device further include: second obtains module 505, for obtaining the institute arranged in advance with receiving end State repeating query mode.

The working principle of device of the present invention can refer to the description of preceding method embodiment.

As shown in figure 9, the signal processing apparatus of the embodiment of the present invention, is applied to receiving end, comprising:

First receiving module 901, for according to the port PT-RS of repeating query mode and transmitting terminal and the correspondence of DMRS port Relationship receives the PT-RS signal of multiple ports；First obtains module 902, carries out letter for the PT-RS signal to each port Road estimation obtains the channel estimation value for transmitting each subcarrier of PT-RS signal of each port；Determining module 903 is used According to the channel estimation value of each subcarrier and the corresponding relationship of the port PT-RS and DMRS port, phase is determined Position variation estimated value；Second obtains module 904, for obtaining the channel estimation results of DMRS port；Phase compensation block 905, For carrying out phase compensation according to channel estimation results of the phase change estimated value to the DMRS port；Wherein, described The PT-RS signal of multiple ports is transmitting terminal according to the repeating query mode, and the precoding weight pair of T DMRS port is recycled PT-RS signal to be transmitted carries out precoding acquisition, and T is integer and 1≤T≤L, L are the corresponding end DMRS of T DMRS port Mouth organizes the total number of interior DMRS port.

Wherein, as shown in Figure 10, the determining module 903 includes:

First acquisition submodule 9031, for obtaining the channel estimation value of each DMRS port on each subcarrier；Meter Operator module 9032, for by the signal estimated value of each subcarrier of each port PT-RS and each subcarrier The quotient of the channel estimation value of upper DMRS port corresponding with each port PT-RS, as on each subcarrier Phase change estimated value；Submodule 9033 is determined, for determining phase according to the phase change estimated value on each subcarrier Position variation estimated value.

Wherein, the determining submodule 903 is specifically used for, by the average value of the phase change estimated value on all subcarriers As the phase change estimated value；Or the average value of the phase change estimated value of target sub-carriers is become as the phase Change estimated value；Wherein, the target sub-carriers are the subcarrier that channel quality meets preset condition；Or the target sub-carriers For be used for transmission the corresponding port PT-RS of specified DMRS port PT-RS signal subcarrier.

Wherein, the phase compensation block 904 is specifically used for, and utilizes the phase change estimated value and the DMRS port Channel estimation results product as the channel estimation results after phase compensation.

As shown in figure 11, the device of the embodiment of the present invention further include: data demodulation module 906, for using phase compensation The channel estimation results of DMRS port afterwards carry out user data demodulation.

It as shown in figure 12, is improve data transfer efficiency, described device further include: the second receiving module 907, for receiving The repeating query mode or obtain the repeating query mode arranged in advance with the transmitting terminal that the transmitting terminal is sent；And Receive the corresponding relationship of the port PT-RS and DMRS port that the transmitting terminal is sent.

As shown in figure 13, the electronic equipment of the embodiment of the present invention, comprising: processor 1300, for reading memory 1320 In program, execute following process:

For the port either objective PT-RS in one or more ports PT-RS, the port pair the target PT-RS is obtained The precoding weight of T DMRS port in the DMRS port group answered；The port the target PT-RS maps to N number of son on frequency domain Carrier wave；The T is recycled according to scheduled repeating query mode for the PT-RS signal to be transmitted on N number of subcarrier The precoding weight of a DMRS port carries out precoding to the PT-RS signal to be transmitted；It is sharp respectively by transceiver 1310 With the PT-RS signal after N number of subcarrier transfer pre-coding；

Transceiver 1310, for sending and receiving data under the control of processor 1300.

Wherein, in Figure 13, bus architecture may include the bus and bridge of any number of interconnection, specifically by processor The various circuits for the memory that 1300 one or more processors represented and memory 1320 represent link together.Total coil holder Structure can also link together various other circuits of such as peripheral equipment, voltage-stablizer and management circuit or the like, this It is all a bit it is known in the art, therefore, it will not be further described herein.Bus interface provides interface.Transceiver 1310 can be multiple element, that is, include transmitter and transceiver, provide for logical with various other devices over a transmission medium The unit of letter.Processor 1300 is responsible for management bus architecture and common processing, memory 1320 can store processor 1300 The used data when executing operation.

Processor 1300, which is responsible for management bus architecture and common processing, memory 1320, can store processor 1300 and exists Execute used data when operation.

Processor 1300 is also used to, to the PT-RS signal to be transmitted on N number of subcarrier, according to N number of sub- load The sequence of the frequency domain of wave, the precoding weight that the T DMRS port is recycled prelist to PT-RS signal to be transmitted Code.

Processor 1300 is also used to, by N number of subcarrier according to the sequence of the frequency domain of N number of subcarrier be divided into Few two sub- carrier wave sets；For the PT-RS signal to be transmitted in each subcarrier group, one in the T DMRS port is used The precoding weight of a port carries out precoding to PT-RS signal to be transmitted；Described in being recycled between each subcarrier group The precoding weight of T DMRS port carries out precoding to PT-RS signal to be transmitted.

Processor 1300 is also used to, to the PT-RS signal to be transmitted on N number of subcarrier, according to the sequence of time domain, The precoding weight that the T DMRS port is recycled carries out precoding to PT-RS signal to be transmitted.

Processor 1300 is also used to, and the corresponding relationship of the port PT-RS and DMRS port is sent to the receiving end；And/or The repeating query mode is sent to receiving end.

Processor 1300 is also used to, and obtains the repeating query mode arranged in advance with receiving end.

As shown in figure 14, the electronic equipment of the embodiment of the present invention, comprising: processor 1400, for reading memory 1420 In program, execute following process:

By transceiver 1410 according to the corresponding relationship of the port PT-RS and DMRS port of repeating query mode and transmitting terminal, Receive the PT-RS signal of multiple ports；Channel estimation is carried out to the PT-RS signal of each port, obtains and transmits each end The channel estimation value of each subcarrier of the PT-RS signal of mouth；According to the channel estimation value of each subcarrier and described The corresponding relationship of the port PT-RS and DMRS port determines phase change estimated value；Obtain the channel estimation results of DMRS port； Phase compensation is carried out according to channel estimation results of the phase change estimated value to the DMRS port；Wherein, the multiple The PT-RS signal of port is transmitting terminal according to the repeating query mode, and the precoding weight of T DMRS port is recycled to be passed Defeated PT-RS signal carries out precoding acquisition, and T is integer and 1≤T≤L, L are the corresponding DMRS port group of T DMRS port The total number of interior DMRS port.

Transceiver 1410, for sending and receiving data under the control of processor 1400.

Wherein, in Figure 14, bus architecture may include the bus and bridge of any number of interconnection, specifically by processor The various circuits for the memory that 1400 one or more processors represented and memory 1420 represent link together.Total coil holder Structure can also link together various other circuits of such as peripheral equipment, voltage-stablizer and management circuit or the like, this It is all a bit it is known in the art, therefore, it will not be further described herein.Bus interface provides interface.Transceiver 1410 can be multiple element, that is, include transmitter and transceiver, provide for logical with various other devices over a transmission medium The unit of letter.Processor 1400 is responsible for management bus architecture and common processing, memory 1420 can store processor 1400 The used data when executing operation.

Processor 1400, which is responsible for management bus architecture and common processing, memory 1420, can store processor 1400 and exists Execute used data when operation.

Processor 1400 is also used to, to the PT-RS signal to be transmitted on N number of subcarrier, according to N number of sub- load The sequence of the frequency domain of wave, the precoding weight that the T DMRS port is recycled prelist to PT-RS signal to be transmitted Code.

Processor 1400 is also used to, and obtains the channel estimation value of each DMRS port on each subcarrier；It will be described every It is opposite with each port PT-RS in the signal estimated value of each subcarrier of a port PT-RS and each subcarrier The quotient of the channel estimation value for the DMRS port answered, as the phase change estimated value on each subcarrier；According to described every Phase change estimated value on a subcarrier determines phase change estimated value.

Processor 1400 is also used to, and the average value of the phase change estimated value on all subcarriers is become as the phase Change estimated value；Or using the average value of the phase change estimated value of target sub-carriers as the phase change estimated value；Wherein, The target sub-carriers are the subcarrier that channel quality meets preset condition；Or the target sub-carriers are specified to be used for transmission The corresponding port PT-RS of DMRS port PT-RS signal subcarrier.

Processor 1400 is also used to, and utilizes the channel estimation results of the phase change estimated value and the DMRS port Product is as the channel estimation results after phase compensation.

Processor 1400 is also used to, and carries out user data solution using the channel estimation results of the DMRS port after phase compensation It adjusts.

Processor 1400 is also used to, and receives the repeating query mode or obtain and the transmitting terminal that the transmitting terminal is sent The repeating query mode arranged in advance；And receive the correspondence of the port PT-RS and DMRS port that the transmitting terminal is sent Relationship.

In addition, a kind of computer readable storage medium of the embodiment of the present invention, for storing computer program, the calculating Machine program can be executed by processor and perform the steps of

Wherein, the method also includes:

The corresponding relationship of the port PT-RS and DMRS port is sent to the receiving end；And/or described in being sent to receiving end Repeating query mode.

Obtain the repeating query mode arranged in advance with receiving end.

Obtain the channel estimation results of DMRS port；

Obtain the channel estimation value of each DMRS port on each subcarrier；

Wherein, the method also includes:

Receive the repeating query mode or obtain the wheel arranged in advance with the transmitting terminal that the transmitting terminal is sent Follow mode；And receive the corresponding relationship of the port PT-RS and DMRS port that the transmitting terminal is sent.

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 logical function partition, there may be another division manner in actual implementation, such as multiple units or components 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 through some interfaces, the INDIRECT COUPLING or communication of device or unit Connection can be electrical property, mechanical or other forms.

It, can also be in addition, the functional units in various embodiments of the present invention may be integrated into one processing unit It is that the independent physics of each unit includes, can also be integrated in one unit with two or more units.Above-mentioned integrated list Member both can take the form of hardware realization, can also realize 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 store and computer-readable deposit at one 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 or disk etc. are various can store The medium of program code.

The above is a 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 signal processing method, which is characterized in that be applied to transmitting terminal, the transmitting terminal have one or more phases with The port track reference signal PT-RS, which comprises

For the port either objective PT-RS in one or more of ports PT-RS, the port pair the target PT-RS is obtained The precoding weight of T DMRS port in the DMRS port group answered；The port the target PT-RS maps to N number of son on frequency domain Carrier wave；

The T are recycled according to scheduled repeating query mode for the PT-RS signal to be transmitted on N number of subcarrier The precoding weight of DMRS port carries out precoding to the PT-RS signal to be transmitted；

Wherein, N is natural number, and T is integer and 1≤T≤L, L are in the corresponding DMRS port group in the port the target PT-RS The total number of DMRS port.

2. the method according to claim 1, wherein the PT- to be transmitted on N number of subcarrier The precoding weight of the T DMRS port is recycled to described to be transmitted according to scheduled repeating query mode in RS signal PT-RS signal carries out the step of precoding, comprising:

To the PT-RS signal to be transmitted on N number of subcarrier, according to the sequence of the frequency domain of N number of subcarrier, circulation makes Precoding is carried out to PT-RS signal to be transmitted with the precoding weight of the T DMRS port.

3. the method according to claim 1, wherein the PT- to be transmitted on N number of subcarrier The precoding weight of the T DMRS port is recycled to described to be transmitted according to scheduled repeating query mode in RS signal PT-RS signal carries out the step of precoding, comprising:

For the PT-RS signal to be transmitted in each subcarrier group, prelisting for a port in the T DMRS port is used Code weight value carries out precoding to PT-RS signal to be transmitted；The T DMRS port is recycled between each subcarrier group Precoding weight to PT-RS signal to be transmitted carry out precoding.

4. the method according to claim 1, wherein the PT- to be transmitted on N number of subcarrier The precoding weight of the T DMRS port is recycled to described to be transmitted according to scheduled repeating query mode in RS signal PT-RS signal carries out the step of precoding, comprising:

The end the T DMRS is recycled according to the sequence of time domain to the PT-RS signal to be transmitted on N number of subcarrier The precoding weight of mouth carries out precoding to PT-RS signal to be transmitted.

5. the method according to claim 1, wherein

The sub-carrier positions of each transmission PT-RS signal, and with the subcarrier of each transmission PT-RS signal using same pre- Sub-carrier positions where encoding the DMRS port signal of weight are identical.

6. the method according to claim 1, wherein the method also includes:

The corresponding relationship of the port PT-RS and DMRS port is sent to receiving end；And/or

The repeating query mode is sent to receiving end.

7. the method according to claim 1, wherein corresponding in the acquisition port the target PT-RS In DMRS port group before the precoding weight of T DMRS port, the method also includes:

Obtain the repeating query mode arranged in advance with receiving end.

8. a kind of signal processing method, which is characterized in that be applied to receiving end, which comprises

According to the corresponding relationship of the port PT-RS and DMRS port of repeating query mode and transmitting terminal, the PT-RS of multiple ports is received Signal；

Channel estimation is carried out to the PT-RS signal of each port, obtains the every height for transmitting the PT-RS signal of each port The channel estimation value of carrier wave；

Obtain the channel estimation results of DMRS port；

Wherein, the PT-RS signal of the multiple port is transmitting terminal according to the repeating query mode, and T DMRS port is recycled Precoding weight precoding acquisition is carried out to PT-RS signal to be transmitted, T is integer and 1≤T≤L, L are the T end DMRS The total number of DMRS port in the corresponding DMRS port group of mouth.

9. according to the method described in claim 8, it is characterized in that, the channel estimation value according to each subcarrier, And the corresponding relationship of the port PT-RS and DMRS port, the step of determining phase change estimated value, comprising:

Obtain the channel estimation value of each DMRS port on each subcarrier；

By on the signal estimated value of each subcarrier of each port PT-RS and each subcarrier with it is described each The quotient of the channel estimation value of the corresponding DMRS port in the port PT-RS, as the phase change estimation on each subcarrier Value；

10. according to the method described in claim 9, it is characterized in that, the phase change according on each subcarrier Estimated value determines the step of phase change estimated value, comprising:

Using the average value of the phase change estimated value on all subcarriers as the phase change estimated value；Or it is target is sub The average value of the phase change estimated value of carrier wave is as the phase change estimated value；

Wherein, the target sub-carriers are the subcarrier that channel quality meets preset condition；Or the target sub-carriers are to use In the subcarrier of the PT-RS signal of the specified corresponding port PT-RS of DMRS port of transmission.

11. according to the method described in claim 8, it is characterized in that, it is described according to the phase change estimated value to described The channel estimation results of DMRS port carry out the step of phase compensation and include:

After using the product of the channel estimation results of the phase change estimated value and the DMRS port as phase compensation Channel estimation results.

12. according to the method described in claim 8, it is characterized in that, the method also includes:

13. according to the method described in claim 8, it is characterized in that, the method also includes:

Receive the repeating query mode or obtain the repeating query side arranged in advance with the transmitting terminal that the transmitting terminal is sent Formula；And receive the corresponding relationship of the port PT-RS and DMRS port that the transmitting terminal is sent.

14. a kind of signal processing apparatus, which is characterized in that be applied to transmitting terminal, the transmitting terminal has one or more phases The port track reference signal PT-RS, comprising:

First obtains module, for obtaining institute for the port either objective PT-RS in one or more of ports PT-RS State the precoding weight of T DMRS port in the corresponding DMRS port group in the port target PT-RS；The port the target PT-RS exists N number of subcarrier is mapped on frequency domain；

Precoding module, for for the PT-RS signal to be transmitted on N number of subcarrier, according to scheduled repeating query mode, The precoding weight that the T DMRS port is recycled carries out precoding to the PT-RS signal to be transmitted；

15. device according to claim 14, which is characterized in that the precoding module is specifically used for, to N number of son The end the T DMRS is recycled according to the sequence of the frequency domain of N number of subcarrier in PT-RS signal to be transmitted on carrier wave The precoding weight of mouth carries out precoding to PT-RS signal to be transmitted.

16. device according to claim 14, which is characterized in that the precoding module includes:

Submodule is divided, for N number of subcarrier to be divided at least two according to the sequence of the frequency domain of N number of subcarrier Subcarrier group；

Precoding submodule, for using the T DMRS port for the PT-RS signal to be transmitted in each subcarrier group In a port precoding weight, to PT-RS signal to be transmitted carry out precoding；Recycling between each subcarrier group makes Precoding is carried out to PT-RS signal to be transmitted with the precoding weight of the T DMRS port.

17. device according to claim 16, which is characterized in that the precoding module is specifically used for, to N number of son The precoding weight of the T DMRS port is recycled according to the sequence of time domain in PT-RS signal to be transmitted on carrier wave Precoding is carried out to PT-RS signal to be transmitted.

18. device according to claim 14, which is characterized in that

19. device according to claim 14, which is characterized in that described device further include:

Sending module, for sending the corresponding relationship of the port PT-RS and DMRS port to receiving end；And/or it is sent to receiving end The repeating query mode.

20. device according to claim 14, which is characterized in that described device further include:

21. a kind of signal processing apparatus, which is characterized in that be applied to receiving end, comprising:

First receiving module, for connecing according to the port PT-RS of repeating query mode and transmitting terminal and the corresponding relationship of DMRS port Receive the PT-RS signal of multiple ports；

First obtains module, carries out channel estimation for the PT-RS signal to each port, obtains and transmit each port The channel estimation value of each subcarrier of PT-RS signal；

Determining module, for according to the channel estimation value of each subcarrier and the port PT-RS and DMRS port Corresponding relationship determines phase change estimated value；

Phase compensation block, for carrying out phase according to channel estimation results of the phase change estimated value to the DMRS port Position compensation；

22. device according to claim 21, which is characterized in that the determining module includes:

Computational submodule, for carrying the signal estimated value of each subcarrier of each port PT-RS and every height The quotient of the channel estimation value of DMRS port corresponding with each port PT-RS on wave, as on each subcarrier Phase change estimated value；

Submodule is determined, for determining phase change estimated value according to the phase change estimated value on each subcarrier.

23. device according to claim 22, which is characterized in that the determining submodule is specifically used for, by all sub- loads The average value of phase change estimated value on wave is as the phase change estimated value；Or by the phase change of target sub-carriers The average value of estimated value is as the phase change estimated value；

24. device according to claim 21, which is characterized in that the phase compensation block is specifically used for, using described The product of the channel estimation results of phase change estimated value and the DMRS port is as the channel estimation results after phase compensation.

25. device according to claim 21, which is characterized in that described device further include:

Data demodulation module, for using the channel estimation results of the DMRS port after phase compensation to carry out user data demodulation.

26. device according to claim 21, which is characterized in that described device further include:

Second receiving module, for receiving the repeating query mode or obtain prior with the transmitting terminal that the transmitting terminal is sent The repeating query mode of agreement；And receive the corresponding pass of the port PT-RS and DMRS port that the transmitting terminal is sent System.

27. a kind of electronic equipment, including memory, processor and it is stored on the memory and can transports on the processor Capable computer program；It is characterized in that, the processor performs the steps of when executing described program

For the port either objective PT-RS in one or more ports PT-RS, it is corresponding to obtain the port the target PT-RS The precoding weight of T DMRS port in DMRS port group；The port the target PT-RS maps to N number of subcarrier on frequency domain；

28. a kind of computer readable storage medium, for storing computer program, which is characterized in that the computer program can It is executed by processor and performs the steps of

29. a kind of electronic equipment, including memory, processor and it is stored on the memory and can transports on the processor Capable computer program；It is characterized in that, the processor performs the steps of when executing described program

Obtain the channel estimation results of DMRS port；

30. a kind of computer readable storage medium, for storing computer program, which is characterized in that the computer program can It is executed by processor and performs the steps of

Obtain the channel estimation results of DMRS port；