CN109150429A

CN109150429A - Transmission method, method of reseptance and the device of Phase Tracking reference signal

Info

Publication number: CN109150429A
Application number: CN201710453986.1A
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: CN109150429B; WO2018228153A1

Abstract

The present invention provides transmission method, method of reseptance and the device of a kind of Phase Tracking reference signal.This method comprises: sending associated ports information and precoding information to receiving end；Wherein, associated ports information includes the corresponding demodulated reference signal DMRS port group in each port Phase Tracking reference signal PT-RS；Precoding information is used to indicate precoding information used by each port PT-RS in the transmission of this data；And the mapping relations of the port PT-RS and DMRS port that the predefined precoding information of system indicates；According to mapping relations and precoding information, target sub-carriers corresponding to each port PT-RS are determined, by each PT-RS port mapping to respective target sub-carriers, carry out Phase Tracking reference signal transmission.The solution of the present invention, it solves PT-RS in existing way and uses the precoding of a fixed port in DMRS port group, the characteristic of channel for being also easy to produce therefore port experience is poor, has lower signal-to-noise ratio in receiving end, thus the problem of influencing compensation performance of the PT-RS to phase noise.

Description

Transmission method, method of reseptance and the device of Phase Tracking reference signal

Technical field

The present invention relates to fields of communication technology, particularly relate to transmission method, the recipient of a kind of Phase Tracking reference signal Method and device.

Background technique

Local oscillator of the phase noise in transmitter and receiver will produce the transmission of multi-carrier signal It is raw to influence.And at high band (6GHz or more), the influence of phase noise will be more serious, needs to carry out phase to reception signal to make an uproar The compensation of sound is to guarantee system performance.By introducing Phase Tracking reference signal in transmitting terminal, can track due to phase noise Caused phase change guarantees that receiving end is able to carry out the phase noise estimation of link, and the influence to phase noise carries out Compensation.

In the global 5G modular system (NR) for completely newly eating dishes without rice or wine design based on orthogonal frequency division multiplexi, Phase Tracking The transmitted in band that reference signal (PT-RS) is dispatched in user, it is different according to its frequency domain density, it can as shown in Figure 1 every 2 Physical Resource Block PRB maps primary (demodulated reference signal DMRS11, PT-RS12), it is of course also possible to each PRB or 4 every PRB mapping is primary, and in the PRB there are PT-RS, each PT-RS port mapping a to subcarrier.

Wherein, each port PT-RS corresponds to one group of DMRS port, and each DMRS port in group is by same phase noise The influence in source.Phase noise of this port PT-RS for each DMRS port in compensation group.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.

At present for transmitting being achieved in that for precoding used in PT-RS: the use of the predefined port PT-RS and its phase Precoding used in a fixed DMRS port in corresponding DMRS port group is identical, and maps so far DMRS port institute Subcarrier on.This DMRS port fixed can be the smallest DMRS port of number in group.Fig. 2 is with there are the one of PT-RS (dash area indicates the port PT-RS 0, and oblique line portion indicates the port PT-RS 1), the port PT-RS 0 and DMRS port for a PRB 0-5 is corresponding, uses the precoding of DMRS port 0, and maps on the subcarrier at 0 place of DMRS port；The port PT-RS 1 It is corresponding with DMRS port 6-7, the precoding of DMRS port 6 is used, and map on the subcarrier at 6 place of DMRS port,.

But in DMRS port group corresponding to a port PT-RS, due to precoding difference, different DMRS ports The different characteristic of channel may be undergone, in this way, PT-RS uses the pre- of a fixed port in DMRS port group in existing way Coding, the characteristic of channel for being also easy to produce therefore port experience is poor, has lower signal-to-noise ratio in receiving end, to influence PT-RS The problem of to the compensation performance of phase noise.

Summary of the invention

The present invention provides transmission method, method of reseptance and the device of a kind of Phase Tracking reference signal, to solve existing side PT-RS is also easy to produce the characteristic of channel of therefore port experience using the precoding of a fixed port in DMRS port group in formula It is poor, there is lower signal-to-noise ratio in receiving end, thus the problem of influencing compensation performance of the PT-RS to phase noise.

To solve the above problems, the embodiment of the present invention provides a kind of transmission method of Phase Tracking reference signal, application In transmitting terminal, comprising:

Associated ports information and precoding information are sent to receiving end；Wherein, the associated ports information includes each phase The corresponding demodulated reference signal DMRS port group in the position port track reference signal PT-RS；The precoding information is this data Precoding information used by each port PT-RS in transmission；And system predefines the end PT-RS that the precoding information indicates The mapping relations of mouth and DMRS port；

According to the mapping relations and the precoding information, target sub-carriers corresponding to each port PT-RS are determined, By each PT-RS port mapping to respective target sub-carriers, Phase Tracking reference signal transmission is carried out.

Wherein, the transmission associated ports information and the step of precoding information to receiving end, comprising:

The associated ports information is sent to the receiving end by high-level signaling or physical layer dynamic signaling；

The precoding information is sent to the receiving end by physical layer dynamic signaling.

Wherein, the number of bits of the physical layer dynamic signaling can configure or be predefined as a fixation by high-level signaling Value.

Wherein, the system predefines the mapping relations of the port PT-RS and DMRS port that the precoding information indicates Are as follows:

Indicate that the port PT-RS i and n DMRS port meet formula

Wherein,

I is PT-RS port numbers, and i is integer, and n is positive integer, W_iFor the precoding vector of 1*n, p₀…p_n-1It respectively indicates The each port numbers of DMRS,Indicate the signal of the port the PT-RS i transmitted on sub-carrierk,It is illustrated respectively in The DMRS port p transmitted on subcarrier k₀…p_n-1Signal.

Wherein, the n DMRS port can be whole DMRS ports of transmitting terminal configuration, be also possible to and PT-RS Whole DMRS ports in the corresponding DMRS port group of port i, or in DMRS port group corresponding with the port PT-RS i A part of DMRS port.

Wherein, the precoding information of the port PT-RS i is W_i；Either

W_iThe corresponding index value in all available precoding vector set.

To solve the above problems, the embodiments of the present invention also provide a kind of method of reseptance of Phase Tracking reference signal, Applied to receiving end, comprising:

Receive associated ports information and precoding information；Wherein, the associated ports information includes each Phase Tracking ginseng Examine the corresponding demodulated reference signal DMRS port group in the port signal PT-RS；The precoding information is every during this data is sent Precoding information used by a port PT-RS；And system predefines the port PT-RS and DMRS that the precoding information indicates The mapping relations of port；

According to the associated ports information, the precoding information and the mapping relations, the PT-RS of all of the port is obtained And DMRS.

Wherein, the reception associated ports information and the step of precoding information, comprising:

The associated ports information is obtained by receiving high-level signaling or physical layer dynamic signaling；

The precoding information that transmitting terminal is sent is obtained by receiving physical layer dynamic signaling.

Wherein, the method also includes:

According to the PT-RS and the DMRS, channel estimation and channel compensation are carried out.

Wherein, described according to the PT-RS and the DMRS, the step of carrying out channel estimation and channel compensation, comprising:

Channel estimation is carried out to the PT-RS of each port respectively, obtains the first channel estimation value；

Channel estimation is carried out to the DMRS of each port respectively, obtains second channel estimated value；

Estimated according to the precoding information, the mapping relations, first channel estimation value and the second channel Value, calculates the phase change estimated value on each port PT-RS；

According to the phase change estimated value, the second channel of the corresponding DMRS port group in each port PT-RS is estimated Value compensates, and obtains channel estimation results value.

Wherein, described according to the precoding information, the mapping relations, first channel estimation value and described second Channel estimation value, the step of calculating the phase change estimated value on each port PT-RS, comprising:

First channel estimation value and second channel estimated value are substituted into formula Calculate separately the phase change on the orthogonal frequency division multiplex OFDM symbol l of the port PT-RS iWherein, P_k,lIndicate the end PT-RS First channel estimation value of the mouth i on OFDM symbol l subcarrier k,The each port DMRS is respectively indicated in sub- load Second channel estimated value on wave k.

To solve the above problems, the embodiments of the present invention also provide a kind of transmitting device of Phase Tracking reference signal, Applied to transmitting terminal, comprising:

Sending module, for sending associated ports information and precoding information to receiving end；Wherein, the associated ports letter Breath includes the corresponding demodulated reference signal DMRS port group in each port Phase Tracking reference signal PT-RS；The precoding letter Breath is precoding information used by each port PT-RS during this data is sent；And system predefines the precoding information The port PT-RS of expression and the mapping relations of DMRS port；

First processing module, for determining each port PT-RS institute according to the mapping relations and the precoding information Each PT-RS port mapping to respective target sub-carriers is carried out Phase Tracking reference signal biography by corresponding target sub-carriers It is defeated.

Wherein, the sending module includes:

First sending submodule, for being sent out the associated ports information by high-level signaling or physical layer dynamic signaling It send to the receiving end；

Second sending submodule, for the precoding information to be sent to the reception by physical layer dynamic signaling End.

Indicate that the port PT-RS i and n DMRS port meet formula

Wherein,

Wherein, the precoding information of the port PT-RS i is W_i；Either

W_iThe corresponding index value in all available precoding vector set.

To solve the above problems, the embodiment of the present invention also provides a kind of reception device of Phase Tracking reference signal, answer For receiving end, comprising:

Receiving module, for receiving associated ports information and precoding information；Wherein, the associated ports information includes every The corresponding demodulated reference signal DMRS port group in a port Phase Tracking reference signal PT-RS；The precoding information is this Precoding information used by each port PT-RS in data transmission；And system predefines the PT- that the precoding information indicates The mapping relations of the port RS and DMRS port；

Module is obtained, for obtaining institute according to the associated ports information, the precoding information and the mapping relations There are the PT-RS and DMRS of port.

Wherein, the receiving module includes:

First receiving submodule, for obtaining the associated ports by receiving high-level signaling or physical layer dynamic signaling Information；

Second receiving submodule, for obtaining the precoding letter that transmitting terminal is sent by receiving physical layer dynamic signaling Breath.

Wherein, described device further include:

Second processing module, for carrying out channel estimation and channel compensation according to the PT-RS and the DMRS.

First channel estimation submodule carries out channel estimation for the PT-RS to each port respectively, obtains the first channel Estimated value；

Second channel estimates submodule, carries out channel estimation respectively for the DMRS to each port, obtains second channel Estimated value；

Submodule is estimated in phse conversion, for being estimated according to the precoding information, the mapping relations, first channel Evaluation and the second channel estimated value, calculate the phase change estimated value on each port PT-RS；

Channel compensation submodule, for according to the phase change estimated value, the end DMRS corresponding to each port PT-RS The second channel estimated value of mouth group compensates, and obtains channel estimation results value.

Wherein, the phse conversion estimation submodule is further used for estimating first channel estimation value and second channel Evaluation substitutes into formulaCalculate separately the orthogonal frequency division multiplex OFDM symbol l of the port PT-RS i On phase changeWherein, P_k,lIndicate first channel estimation value of the port the PT-RS i on OFDM symbol l subcarrier k,Respectively indicate the second channel estimated value of each port DMRS on sub-carrierk.

To solve the above problems, the embodiments of the present invention also provide a kind of equipment of the core network, including memory, transmitting-receiving Machine, processor and it is stored in the computer program that can be run on the memory and on the processor；The processor is held It is performed the steps of when row described program and associated ports information and precoding information is sent to receiving end by the transceiver； Wherein, the associated ports information includes the corresponding demodulated reference signal DMRS in each port Phase Tracking reference signal PT-RS Port set；The precoding information is precoding information used by each port PT-RS during this data is sent；And system is pre- Define the mapping relations of the port PT-RS and DMRS port that the precoding information indicates；According to mapping relations and described Precoding information determines target sub-carriers corresponding to each port PT-RS, by each PT-RS port mapping to respective mesh Subcarrier is marked, Phase Tracking reference signal transmission is carried out.

To solve the above problems, the embodiments of the present invention also provide a kind of terminal device, including memory, transceiver, Processor and it is stored in the computer program that can be run on the memory and on the processor；The processor executes institute It is performed the steps of when stating program through the transceiver associated ports information and precoding information；Wherein, the association Port information includes the corresponding demodulated reference signal DMRS port group in each port Phase Tracking reference signal PT-RS；It is described pre- Encoded information is precoding information used by each port PT-RS during this data is sent；And system predefines described prelist The mapping relations of the port PT-RS and DMRS port that code information indicates；According to the associated ports information, the precoding information With the mapping relations, the PT-RS and DMRS of all of the port are obtained.

To solve the above problems, being stored thereon the embodiments of the present invention also provide a kind of computer readable storage medium There is computer program, which performs the steps of when being executed by processor sends associated ports information and precoding information extremely Receiving end；Wherein, the associated ports information includes the corresponding demodulation reference letter in each port Phase Tracking reference signal PT-RS Number DMRS port group；The precoding information is precoding information used by each port PT-RS during this data is sent；And System predefines the mapping relations of the port PT-RS that the precoding information indicates and DMRS port；According to the mapping relations With the precoding information, target sub-carriers corresponding to each port PT-RS are determined, by each PT-RS port mapping to each From target sub-carriers, carry out Phase Tracking reference signal transmission.

To solve the above problems, being stored thereon the embodiments of the present invention also provide a kind of computer readable storage medium There is computer program, which performs the steps of when being executed by processor receives associated ports information and precoding information；Its In, the associated ports information includes each port Phase Tracking reference signal PT-RS end corresponding demodulated reference signal DMRS Mouth group；The precoding information is precoding information used by each port PT-RS during this data is sent；And system is predetermined The mapping relations of the port PT-RS and DMRS port that the justice precoding information indicates；According to the associated ports information, described Precoding information and the mapping relations obtain the PT-RS and DMRS of all of the port.

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

The transmission method of the Phase Tracking reference signal of the embodiment of the present invention, since the predefined precoding information of system indicates The port PT-RS and DMRS port mapping relations, the precoding information by this data send in each port PT-RS adopted Precoding information, associated ports information include the corresponding DMRS port group in each port PT-RS, so, in transmitting terminal Associated ports information and precoding information are sent to receiving end, and according to the mapping relations and precoding information, determined each Target sub-carriers corresponding to the port PT-RS, by each PT-RS port mapping to respective target sub-carriers, carry out phase with After track reference signal transmission, which can get the PT-RS and DMRS of all of the port according to the information received. In this way, because the port PT-RS of precoding information expression and the mapping relations of DMRS port are that system is predefined, precoding information It can indicate a variety of possible precodings, so the precoding information flexibility of the PT-RS of configuration is higher, ensure that PT-RS pairs Phase noise compensation performance avoids the precoding because using a fixed port in DMRS port group, is also easy to produce and therefore holds The characteristic of channel of mouth experience is poor, has lower signal-to-noise ratio in receiving end, to influence PT-RS to the compensatory of phase noise The problem of energy.

Detailed description of the invention

Fig. 1 is the frequency domain density schematic diagram of PT-RS；

Fig. 2 is subcarrier maps schematic diagram of the PT-RS in a PRB；

Fig. 3 is the step flow chart of the transmission method of the Phase Tracking reference signal of the embodiment of the present invention；

Fig. 4 is that the PT-RS of scene one transmits schematic diagram；

Fig. 5 is that the PT-RS of scene two transmits schematic diagram；

Fig. 6 is the step flow chart one of the method for reseptance of the Phase Tracking reference signal of the embodiment of the present invention；

Fig. 7 is the step flowchart 2 of the method for reseptance of the Phase Tracking reference signal of the embodiment of the present invention；

Fig. 8 is the step flow chart 3 of the method for reseptance of the Phase Tracking reference signal of the embodiment of the present invention；

Fig. 9 is the structural schematic diagram of the transmitting device of the Phase Tracking reference signal of the embodiment of the present invention；

Figure 10 is the structural schematic diagram of the reception device of the Phase Tracking reference signal of the embodiment of the present invention；

Figure 11 is the structural schematic diagram of the equipment of the core network of the embodiment of the present invention；

Figure 12 is the structural schematic diagram of the terminal device of the embodiment of the present invention.

Specific embodiment

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

The present invention, using the precoding of a fixed port in DMRS port group, is easily produced for PT-RS in existing way The characteristic of channel of raw therefore port experience is poor, has lower signal-to-noise ratio in receiving end, to influence PT-RS to phase noise Compensation performance the problem of, provide a kind of transmission method of Phase Tracking reference signal, can prelisting with flexible configuration PT-RS Code information, ensure that PT-RS to the compensation performance of phase noise.

As shown in figure 3, a kind of transmission method of Phase Tracking reference signal of the embodiment of the present invention, is applied to transmitting terminal, Include:

Step 301, associated ports information and precoding information are sent to receiving end；Wherein, the associated ports packet Include the corresponding demodulated reference signal DMRS port group in each port Phase Tracking reference signal PT-RS；The precoding information is Precoding information used by each port PT-RS in the transmission of this data；And system predefines the precoding information and indicates The port PT-RS and DMRS port mapping relations；

Step 302, according to the mapping relations and the precoding information, mesh corresponding to each port PT-RS is determined Subcarrier is marked, by each PT-RS port mapping to respective target sub-carriers, carries out Phase Tracking reference signal transmission.

In an embodiment of the present invention, the port PT-RS due to the predefined precoding information expression of system and DMRS port Mapping relations, which is precoding information used by each port PT-RS during this data is sent, and is associated with end Message breath includes the corresponding DMRS port group in each port PT-RS, so, in step 301, transmitting terminal is by associated ports information It is sent to receiving end with precoding information, and determines each PT-RS according to the mapping relations and precoding information in step 302 Each PT-RS port mapping to respective target sub-carriers is carried out Phase Tracking reference by target sub-carriers corresponding to port After signal transmission, which can get the PT-RS and DMRS of all of the port according to the information received.Wherein, because The mapping relations of the port PT-RS and DMRS port that precoding information indicates are that system is predefined, and precoding information can refer to Show a variety of possible precodings, so the precoding information flexibility of the PT-RS of configuration is higher, ensure that PT-RS makes an uproar to phase Sound compensation performance avoids the precoding because using a fixed port in DMRS port group, is also easy to produce therefore port experience The characteristic of channel it is poor, there is lower signal-to-noise ratio in receiving end, to influence PT-RS asking to the compensation performance of phase noise Topic.

Wherein, it is contemplated that the requirement to sending cycle of associated ports information and precoding information, it is preferred that step 301 Include:

Here, which can be radio resource control RRC signaling or medium access control-user control unit MAC-CE signaling, the physical layer dynamic signaling can be Downlink Control Information DCI signaling etc..

It and is to realize precoding information and/or associated ports information being sent to receiving end, the physical layer dynamic signaling Number of bits can be configured by high-level signaling or be predefined as a fixed value.

In this way, the physical layer dynamic signaling will have enough spaces to carry precoding information and/or associated ports information, To complete the transmission of information.

In this embodiment, specifically, the system predefines the port PT-RS and DMRS that the precoding information indicates The mapping relations of port are as follows:

Indicate that the port PT-RS i and n DMRS port meet formula

Wherein,

Further specifically, the precoding information of the port PT-RS i is W_i；Either

W_iThe corresponding index value in all available precoding vector set.

Scene one, transmitting terminal transmit 2 port PT-RS, user data spread with 8 it is defeated, i.e., with 8 DMRS ports, and according to The relationship of scheduled user's scheduling bandwidth and PT-RS frequency domain density, PT-RS are transmitted in each PRS.At this moment, transmitting terminal is logical The associated ports information for crossing RRC signaling transmission informs that the corresponding DMRS port group in the port receiving end PT-RS 0 is DMRS port 0-4, The corresponding DMRS port group in the port PT-RS 1 is DMRS port 5-7.In the scene one, the predefined precoding information of system is indicated Be whole DMRS ports in the port PT-RS and its DMRS port group mapping relations.The number of bits of DCI signaling this When can be determined by RRC signaling, indicate whole element values in each precoding vector, the DCI of the corresponding port PT-RS 0 includes 5 Bit, the DCI of the corresponding port PT-RS 1 include 3 bits.The transmitting terminal is each PT- by the precoding information that DCI signaling is sent The port RS corresponds to each element value of precoding vector: W₀=[1 010 1], W₁=[1 0 0], such as the following table 1:

The port PT-RS	Precoding instruction
		The port PT-RS 0	[1 0 1 0 1]
The port PT-RS 1	[1 0 0]

Table 1

It is found that precoding of the port PT-RS 0 using DMRS port 0,2 and 4, the port PT-RS 1 are pre- using DMRS port 5 Coding.

Scene two, transmitting terminal transmit 2 port PT-RS, user data spread with 8 it is defeated, i.e., with 8 DMRS ports, and according to The relationship of scheduled user's scheduling bandwidth and PT-RS frequency domain density, PT-RS are transmitted in each PRS.Likewise, transmitting terminal The associated ports information sent by RRC signaling informs that the corresponding DMRS port group in the port receiving end PT-RS 0 is DMRS port 0- The corresponding DMRS port group in 4, PT-RS port 1 is DMRS port 5-7.In the scene two, the predefined precoding information table of system Show be the port PT-RS and transmitting terminal configuration whole DMRS ports mapping relations, the predefined precoding of system to Quantity set is combined intoWherein e_mThe unit column vector for being 1 for the m+1 element, subscript T expression transposition, m=0,1 ..., 7.There are 8 ports according to whole DMRS, therefore the number of bits of fixed DCI is 3bit, which is sent by DCI signaling Precoding information is each port PT-RS corresponding index value, such as the following table 2 in all available precoding vector set:

The port PT-RS	Precoding instruction
		The port PT-RS 0	[0 1 1]
The port PT-RS 1	[1 1 0]

Table 2

Wherein the binary number of 3 bits corresponds to the index of the precoding vector in precoding vector set, that is, has,

Later, PT-RS transmission is carried out, scene one is continued, system predefines each port PT-RS at its corresponding end DMRS It in mouthful group, maps on the subcarrier where the DMRS port of minimum port numbers and transmits, therefore, by known mapping relations and pre- Encoded information, the port PT-RS 0 are transmitted on the subcarrier where DMRS port 0, and the port PT-RS 1 is at 5 place of DMRS port It is transmitted on subcarrier, as shown in Figure 4 (dash area indicates the port PT-RS 0, and oblique line portion indicates the port PT-RS 1).Continue feelings The port PT-RS 0 is mapped to the subcarrier where DMRS port 3 directly by known mapping relations and precoding information by scape two The port PT-RS 1 is mapped on the subcarrier at 6 place of DMRS port and transmits by upper transmission, and (dash area indicates as shown in Figure 5 The port PT-RS 0, oblique line portion indicate the port PT-RS 1).

In conclusion the transmission method of the Phase Tracking reference signal of the embodiment of the present invention, transmitting terminal sends associated ports Information and precoding information determine corresponding to each port PT-RS to receiving end, and according to mapping relations and precoding information Target sub-carriers, by each PT-RS port mapping to respective target sub-carriers, after carrying out Phase Tracking reference signal transmission, Due to the mapping relations of the port PT-RS and DMRS port that the predefined precoding information of system indicates, which is this Precoding information used by each port PT-RS in secondary data transmission, associated ports information includes each port pair PT-RS The DMRS port group answered, so, which can get the PT-RS and DMRS of all of the port.Wherein, because precoding is believed Cease the port PT-RS indicated and the mapping relations of DMRS port be that system is predefined, precoding information can indicate it is a variety of can The precoding of energy ensure that PT-RS to phase noise compensation so the precoding information flexibility of the PT-RS of configuration is higher Can, the precoding because using a fixed port in DMRS port group is avoided, the channel for being also easy to produce therefore port experience is special Property it is poor, receiving end have lower signal-to-noise ratio, thus the problem of influencing compensation performance of the PT-RS to phase noise.

As shown in fig. 6, being applied to the embodiments of the present invention also provide a kind of method of reseptance of Phase Tracking reference signal Receiving end, comprising:

Step 601, associated ports information and precoding information are received；Wherein, the associated ports information includes each phase The corresponding demodulated reference signal DMRS port group in the position port track reference signal PT-RS；The precoding information is this data Precoding information used by each port PT-RS in transmission；And system predefines the end PT-RS that the precoding information indicates The mapping relations of mouth and DMRS port；

Step 602, according to the associated ports information, the precoding information and the mapping relations, all ends are obtained The PT-RS and DMRS of mouth.

Here, such as step 601, receiving end receive transmitting terminal and send associated ports information and precoding information first, due to The mapping relations of the port PT-RS and DMRS port that the predefined precoding information of system indicates, the precoding information are this number According to precoding information used by the port PT-RS each in transmission, associated ports information includes that each port PT-RS is corresponding DMRS port group, so, such as step 602, which according to known associated ports information, precoding information and can reflect Relationship is penetrated, the PT-RS and DMRS of all of the port are obtained.

In this way, because the port PT-RS of precoding information expression and the mapping relations of DMRS port are that system is predefined, tool There are many possibility ensure that PT-RS to phase noise compensation so the precoding information flexibility of the PT-RS of configuration is higher Can, the precoding because using a fixed port in DMRS port group is avoided, the channel for being also easy to produce therefore port experience is special Property it is poor, receiving end have lower signal-to-noise ratio, thus the problem of influencing compensation performance of the PT-RS to phase noise.

The transmission implementation of associated ports information and precoding information, the embodiment step in corresponding above-described embodiment 601 include:

Here, which can be radio resource control RRC signaling or medium access control-customer edge MAC-CE signaling, the physical layer dynamic signaling can be Downlink Control Information DCI signaling etc..

In the embodiment of the present invention, as shown in fig. 7, getting the PT-RS and DMRS of all of the port in step 602 receiving end Afterwards, further includes:

Step 603, according to the PT-RS and the DMRS, channel estimation and channel compensation are carried out.

In this way, the PT-RS and DMRS that are obtained by step 602, it will be able to carry out channel estimation and channel compensation, reduce phase Influence of noise, to carry out user data demodulation using compensated result.

Specifically, as shown in figure 8, step 603 includes:

Step 6031, channel estimation is carried out to the PT-RS of each port respectively, obtains the first channel estimation value；

Step 6032, channel estimation is carried out to the DMRS of each port respectively, obtains second channel estimated value；

Step 6033, according to the precoding information, the mapping relations, first channel estimation value and described second Channel estimation value calculates the phase change estimated value on each port PT-RS；

Step 6034, according to the phase change estimated value, to the second of the corresponding DMRS port group in each port PT-RS Channel estimation value compensates, and obtains channel estimation results value.

Further specifically, step 6033 includes:

Continue the realization of scene one in a upper embodiment, the associated ports information that receiving end is transmitted by receiving RRC signaling, energy Enough learn that the corresponding DMRS port group in the port PT-RS 0 is DMRS port 0-4, the corresponding DMRS port group in the port PT-RS 1 is DMRS port 5-7.And since system predefines each port PT-RS in its corresponding DMRS port group, smallest end is mapped to It is transmitted on subcarrier where the DMRS port of slogan, it will be able in the received over subcarriers port 0 where DMRS port 0 PT-RS, the PT-RS in the received over subcarriers port 1 where DMRS port 5, and receive all of the port of transmitting terminal configuration DMRS.Then, channel estimation is carried out respectively to the PT-RS of each port, the first channel obtained on its corresponding subcarrier is estimated Evaluation carries out channel estimation to the DMRS of each port respectively, obtains the second channel estimated value on its corresponding subcarrier.By position P is expressed as in the estimated result of the PT-RS on OFDM symbol l (l=5~12) subcarrier k_k,l, 3,4 son of OFDM symbol will be located at The result of the channel estimation of the DMRS of each port on carrier wave k is expressed asp_n-1Indicate the port numbers of DMRS. It, can be by above-mentioned formula further according to the precoding information of the received DCI signalling in receiving end To calculate separately the phase change of each port PT-RS:

The port PT-RS 0:Wherein k=0,12,24 ...

The port PT-RS 1:Wherein k=1,13,25 ...

Later, for the channel estimation results of DMRS port (port 0-4) corresponding with the port PT-RS 0N=0~ 4, it usesChannel compensation is carried out, the compensated channel estimation results in scheduling bandwidth are obtainedSimilar, The compensated channel estimation results of 1 corresponding DMRS port (5-7) of the port PT-RS can be obtainedN=5~7. User data demodulation is carried out using compensated channel estimation results.

The realization of the scene two of a upper embodiment, it is similar with scene one, it is right that specific precoding vector is obtained by index After carry out alignment processing, details are not described herein.

In conclusion the method for reseptance of the Phase Tracking reference signal of the embodiment of the present invention, receiving end is by receiving association Port information and precoding information, due to the mapping of the port PT-RS and DMRS port that the predefined precoding information of system indicates Relationship, the precoding information are precoding information used by each port PT-RS, associated ports information during this data is sent Include the corresponding DMRS port group in each port PT-RS, so, the receiving end can according to associated ports information, prelist Code information and mapping relations, get the PT-RS and DMRS of all of the port.Wherein, because of the port PT-RS of precoding information expression Mapping relations with DMRS port are that system is predefined, and precoding information can indicate a variety of possible precodings, so matching The precoding information flexibility of the PT-RS set is higher, ensure that PT-RS to phase noise compensation performance, is avoided because using The precoding of a fixed port in DMRS port group, the characteristic of channel for being also easy to produce therefore port experience is poor, in receiving end With lower signal-to-noise ratio, thus the problem of influencing compensation performance of the PT-RS to phase noise.

As shown in figure 9, the embodiment of the invention also provides a kind of transmitting devices of Phase Tracking reference signal, comprising:

Sending module 901, for sending associated ports information and precoding information to receiving end；Wherein, the association end Message breath includes the corresponding demodulated reference signal DMRS port group in each port Phase Tracking reference signal PT-RS；It is described to prelist Code information is precoding information used by each port PT-RS during this data is sent；And system predefines the precoding The mapping relations of the port PT-RS and DMRS port that information indicates；

First processing module 902, for determining each end PT-RS according to the mapping relations and the precoding information Each PT-RS port mapping to respective target sub-carriers is carried out Phase Tracking with reference to letter by the target sub-carriers corresponding to mouthful Number transmission.

Wherein, the sending module 901 includes:

Indicate that the port PT-RS i and n DMRS port meet formula

Wherein,

Wherein, the precoding information of the port PT-RS i is W_i；Either

W_iThe corresponding index value in all available precoding vector set.

The transmitting device of the Phase Tracking reference signal sends associated ports information and precoding information to receiving end, and According to mapping relations and precoding information, target sub-carriers corresponding to each port PT-RS are determined, by each port PT-RS Respective target sub-carriers are mapped to, after carrying out Phase Tracking reference signal transmission, due to the predefined precoding information table of system The mapping relations of the port PT-RS and DMRS port that show, the precoding information are each port PT-RS institute in the transmission of this data The precoding information of use, associated ports information include the corresponding DMRS port group in each port PT-RS, so, the reception End can get the PT-RS and DMRS of all of the port.Wherein, because of the port PT-RS and the end DMRS of precoding information expression The mapping relations of mouth are that system is predefined, and precoding information can indicate a variety of possible precodings, so the PT-RS of configuration Precoding information flexibility it is higher, ensure that PT-RS to phase noise compensation performance, is avoided because using in DMRS port group A fixed port precoding, be also easy to produce therefore port experience the characteristic of channel it is poor, receiving end have lower letter It makes an uproar and compares, thus the problem of influencing compensation performance of the PT-RS to phase noise.

It should be noted that the device is the device for applying the transmission method of above-mentioned Phase Tracking reference signal, it is above-mentioned The implementation of the embodiment of the transmission method of Phase Tracking reference signal is suitable for the device, can also reach identical technology effect Fruit.

As shown in Figure 10, the embodiments of the present invention also provide a kind of reception device of Phase Tracking reference signal, applications In receiving end, comprising:

Receiving module 1001, for receiving associated ports information and precoding information；Wherein, the associated ports packet Include the corresponding demodulated reference signal DMRS port group in each port Phase Tracking reference signal PT-RS；The precoding information is Precoding information used by each port PT-RS in the transmission of this data；And system predefines the precoding information and indicates The port PT-RS and DMRS port mapping relations；

Module 1002 is obtained, for obtaining according to the associated ports information, the precoding information and the mapping relations Take the PT-RS and DMRS of all of the port.

Wherein, the receiving module 1001 includes:

Wherein, described device further include:

The reception device of the Phase Tracking reference signal, by receiving associated ports information and precoding information, due to being The mapping relations of the port PT-RS and DMRS port that the predefined precoding information of uniting indicates, the precoding information are this data Precoding information used by each port PT-RS in transmission, associated ports information include that each port PT-RS is corresponding DMRS port group, so, which can get institute according to associated ports information, precoding information and mapping relations There are the PT-RS and DMRS of port.Wherein, the mapping relations of the port PT-RS and DMRS port that indicate by precoding information are to be It unites predefined, precoding information can indicate a variety of possible precodings, so the precoding information of the PT-RS of configuration is flexible Property is higher, ensure that PT-RS to phase noise compensation performance, avoids because using a fixed port in DMRS port group Precoding, the characteristic of channel for being also easy to produce therefore port experience is poor, has lower signal-to-noise ratio in receiving end, to influence PT- The problem of RS is to the compensation performance of phase noise.

It should be noted that the device is the device for applying the method for reseptance of above-mentioned Phase Tracking reference signal, it is above-mentioned The implementation of the embodiment of the method for reseptance of Phase Tracking reference signal is suitable for the device, can also reach identical technology effect Fruit.

Another embodiment of the present invention additionally provides a kind of computer readable storage medium, is stored thereon with computer journey Sequence, which performs the steps of when being executed by processor sends associated ports information and precoding information to receiving end；Its In, the associated ports information includes each port Phase Tracking reference signal PT-RS end corresponding demodulated reference signal DMRS Mouth group；The precoding information is precoding information used by each port PT-RS during this data is sent；And system is predetermined The mapping relations of the port PT-RS and DMRS port that the justice precoding information indicates；According to mapping relations and described pre- Encoded information determines target sub-carriers corresponding to each port PT-RS, by each PT-RS port mapping to respective target Subcarrier carries out Phase Tracking reference signal transmission.

Optionally, it can also perform the steps of when which is executed by processor through high-level signaling or physical layer The associated ports information is sent to the receiving end by dynamic signaling；By physical layer dynamic signaling by the precoding information It is sent to the receiving end.

Optionally, the number of bits of the physical layer dynamic signaling can configure or be predefined as one by high-level signaling admittedly Definite value.

Optionally, the mapping that the system predefines the port PT-RS and DMRS port that the precoding information indicates is closed System are as follows:

Indicate that the port PT-RS i and n DMRS port meet formula

Wherein,

Optionally, the n DMRS port can be whole DMRS ports of transmitting terminal configuration, be also possible to and PT- Whole DMRS ports in the corresponding DMRS port group of the port RS i, or DMRS port group corresponding with the port PT-RS i In a part of DMRS port.

Optionally, the precoding information of the port PT-RS i is W_i；Either

W_iThe corresponding index value in all available precoding vector set.

Computer-readable medium includes permanent and non-permanent, removable and non-removable media can be by any method Or technology come realize information store.Information can be computer readable instructions, data structure, the module of program or other data. The example of the storage medium of computer includes, but are not limited to phase change memory (PRAM), static random access memory (SRAM), moves State random access memory (DRAM), other kinds of random access memory (RAM), read-only memory (ROM), electric erasable Programmable read only memory (EEPROM), flash memory or other memory techniques, read-only disc read only memory (CD-ROM) (CD-ROM), Digital versatile disc (DVD) or other optical storage, magnetic cassettes, tape magnetic disk storage or other magnetic storage devices Or any other non-transmission medium, can be used for storage can be accessed by a computing device information.As defined in this article, it calculates Machine readable medium does not include temporary computer readable media (transitory media), such as the data-signal and carrier wave of modulation.

Another embodiment of the present invention additionally provides a kind of computer readable storage medium, is stored thereon with computer journey Sequence, which performs the steps of when being executed by processor receives associated ports information and precoding information；Wherein, the pass Joining port information includes the corresponding demodulated reference signal DMRS port group in each port Phase Tracking reference signal PT-RS；It is described Precoding information is precoding information used by each port PT-RS during this data is sent；And system predefine it is described pre- The mapping relations of the port PT-RS and DMRS port that encoded information indicates；Believed according to the associated ports information, the precoding Breath and the mapping relations, obtain the PT-RS and DMRS of all of the port.

Optionally, it can also be performed the steps of when which is executed by processor by receiving high-level signaling or object It manages layer dynamic signaling and obtains the associated ports information；The described pre- of transmitting terminal transmission is obtained by receiving physical layer dynamic signaling Encoded information.

Optionally, it can also be performed the steps of when which is executed by processor according to the PT-RS and described DMRS carries out channel estimation and channel compensation.

Optionally, can also be performed the steps of when which is executed by processor to the PT-RS of each port respectively into Row channel estimation obtains the first channel estimation value；Channel estimation is carried out to the DMRS of each port respectively, second channel is obtained and estimates Evaluation；According to the precoding information, the mapping relations, first channel estimation value and the second channel estimated value, Calculate the phase change estimated value on each port PT-RS；According to the phase change estimated value, to each port pair PT-RS The second channel estimated value for the DMRS port group answered compensates, and obtains channel estimation results value.

Optionally, can also perform the steps of when which is executed by processor by first channel estimation value and Second channel estimated value substitutes into formulaCalculate separately the orthogonal frequency division multiplexing of the port PT-RS i With the phase change on OFDM symbol lWherein, P_k,lIndicate first of the port PT-RS i on OFDM symbol l subcarrier k Channel estimation value,Respectively indicate the second channel estimated value of each port DMRS on sub-carrierk.

As shown in figure 11, the embodiments of the present invention also provide a kind of equipments of the core network, including memory 1120, transceiver 1110, processor 1100 and it is stored in the computer journey that can be run on the memory 1120 and on the processor 1100 Sequence；The processor 1100 performs the steps of when executing described program sends associated ports letter by the transceiver 1110 It ceases and precoding information to receiving end；Wherein, the associated ports information includes each port Phase Tracking reference signal PT-RS Corresponding demodulated reference signal DMRS port group；The precoding information is adopted by each port PT-RS in the transmission of this data Precoding information；And system predefines the mapping relations of the port PT-RS and DMRS port that the precoding information indicates； According to the mapping relations and the precoding information, target sub-carriers corresponding to each port PT-RS are determined, it will be each PT-RS port mapping carries out Phase Tracking reference signal transmission to respective target sub-carriers.

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

Optionally, processor 1100 can also be performed the steps of is incited somebody to action by high-level signaling or physical layer dynamic signaling The associated ports information is sent to the receiving end；The precoding information is sent to by physical layer dynamic signaling described Receiving end.

Indicate that the port PT-RS i and n DMRS port meet formula

Wherein,

Optionally, the precoding information of the port PT-RS i is W_i；Either

W_iThe corresponding index value in all available precoding vector set.

Wherein, in Figure 11, bus architecture may include the bus and bridge of any number of interconnection, specifically by processor The various circuits for the memory that 1100 one or more processors represented and memory 1120 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 1110 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 1100 is responsible for management bus architecture and common processing, memory 1120 can store processor 1100 The used data when executing operation.

As shown in figure 12, the embodiments of the present invention also provide a kind of terminal devices, including memory 1220, transceiver 1210, processor 1200 and it is stored in the computer journey that can be run on the memory 1220 and on the processor 1200 Sequence；The processor 1200 performs the steps of when executing described program receives associated ports letter by the transceiver 1210 Breath and precoding information；Wherein, the associated ports information includes the corresponding solution in each port Phase Tracking reference signal PT-RS Adjust reference signal DMRS port group；The precoding information is to prelist used by each port PT-RS during this data is sent Code information；And system predefines the mapping relations of the port PT-RS and DMRS port that the precoding information indicates；According to described Associated ports information, the precoding information and the mapping relations obtain the PT-RS and DMRS of all of the port.

Transceiver 1210, for sending and receiving data under the control of processor 1200.

Optionally, the processor 1200 can also perform the steps of dynamic by receiving high-level signaling or physical layer State signaling obtains the associated ports information；The precoding letter that transmitting terminal is sent is obtained by receiving physical layer dynamic signaling Breath.

Optionally, the processor 1200 can also be performed the steps of according to the PT-RS and the DMRS, be carried out Channel estimation and channel compensation.

Optionally, the processor 1200 can also be performed the steps of carries out channel to the PT-RS of each port respectively Estimation, obtains the first channel estimation value；Channel estimation is carried out to the DMRS of each port respectively, obtains second channel estimated value； According to the precoding information, the mapping relations, first channel estimation value and the second channel estimated value, calculate every Phase change estimated value on a port PT-RS；It is corresponding to each port PT-RS according to the phase change estimated value The second channel estimated value of DMRS port group compensates, and obtains channel estimation results value.

Optionally, which can also perform the steps of first channel estimation value and second Channel estimation value substitutes into formulaCalculate separately the orthogonal frequency division multiplexing of the port PT-RS i Phase change on OFDM symbol lWherein, P_k,lIndicate first letter of the port the PT-RS i on OFDM symbol l subcarrier k Road estimated value,Respectively indicate the second channel estimated value of each port DMRS on sub-carrierk.

Wherein, in Figure 12, bus architecture may include the bus and bridge of any number of interconnection, specifically by processor The various circuits for the memory that 1200 one or more processors represented and memory 1220 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 1210 can be multiple element, that is, include transmitter and receiver, provide for logical with various other devices over a transmission medium The unit of letter.For different user equipmenies, user interface 1230, which can also be, the interface for needing equipment external is inscribed, even The equipment connect includes but is not limited to keypad, display, loudspeaker, microphone, control stick etc..

Processor 1200, which is responsible for management bus architecture and common processing, memory 1220, can store processor 1200 and exists Execute used data when operation.

Explanation is needed further exist for, this terminal described in this description includes but is not limited to smart phone, plate electricity Brain etc., and described many functional components are all referred to as module, specifically to emphasize the independence of its implementation.

In the embodiment of the present invention, module can use software realization, to be executed by various types of processors.Citing comes It says, the executable code module of a mark may include the one or more physics or logical block of computer instruction, citing For, object, process or function can be built as.Nevertheless, the executable code of institute's mark module is without physically It is located together, but may include the different instructions being stored in different positions, be combined together when in these command logics When, it constitutes module and realizes the regulation purpose of the module.

In fact, executable code module can be the either many item instructions of individual instructions, and can even be distributed It on multiple and different code segments, is distributed in distinct program, and is distributed across multiple memory devices.Similarly, it grasps Making data can be identified in module, and can realize according to any form appropriate and be organized in any appropriate class In the data structure of type.The operation data can be used as individual data collection and be collected, or can be distributed on different location (including in different storage device), and at least partly can only be present in system or network as electronic signal.

When module can use software realization, it is contemplated that the level of existing hardware technique, it is possible to implemented in software Module, without considering the cost, those skilled in the art can build corresponding hardware circuit to realize correspondence Function, the hardware circuit includes conventional ultra-large integrated (VLSI) circuit or gate array and such as logic core The existing semiconductor of piece, transistor etc either other discrete elements.Module can also use programmable hardware device, such as Field programmable gate array, programmable logic array, programmable logic device etc. are realized.

Above-mentioned exemplary embodiment is described with reference to those attached drawings, many different forms and embodiment be it is feasible and Without departing from spirit of that invention and teaching, therefore, the present invention should not be construed the limitation become in this proposed exemplary embodiment. More precisely, these exemplary embodiments are provided so that the present invention can be perfect and complete, and can be by the scope of the invention It is communicated to those those of skill in the art.In those schemas, size of components and relative size be perhaps based on it is clear for the sake of And it is exaggerated.Term used herein is based only on description particular example embodiment purpose, and being not intended to, which becomes limitation, uses.Such as Ground is used at this, unless the interior text clearly refers else, otherwise the singular " one ", "one" and "the" be intended to by Those multiple forms are also included in.Those term "comprising"s and/or " comprising " will become further apparent when being used in this specification, It indicates the presence of the feature, integer, step, operation, component and/or component, but is not excluded for one or more other features, whole Number, step, operation, component, component and/or the presence of its group or increase.Unless otherwise indicated, narrative tense, a value range packet Bound containing the range and any subrange therebetween.

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 transmission method of Phase Tracking reference signal is applied to transmitting terminal characterized by comprising

Associated ports information and precoding information are sent to receiving end；Wherein, the associated ports information include each phase with The corresponding demodulated reference signal DMRS port group in the port track reference signal PT-RS；The precoding information is the transmission of this data In precoding information used by each port PT-RS；And system predefine the port PT-RS that the precoding information indicates with The mapping relations of DMRS port；

According to the mapping relations and the precoding information, target sub-carriers corresponding to each port PT-RS are determined, it will be every A PT-RS port mapping carries out Phase Tracking reference signal transmission to respective target sub-carriers.

2. the transmission method of Phase Tracking reference signal according to claim 1, which is characterized in that the transmission is associated with end The step of message breath and precoding information to receiving end, comprising:

3. the transmission method of Phase Tracking reference signal according to claim 2, which is characterized in that the physical layer dynamic The number of bits of signaling can configure or be predefined as a fixed value by high-level signaling.

4. the transmission method of Phase Tracking reference signal according to claim 1, which is characterized in that the system is predefined The mapping relations of the port PT-RS and DMRS port that the precoding information indicates are as follows:

Indicate that the port PT-RS i and n DMRS port meet formula

Wherein,

I is PT-RS port numbers, and i is integer, and n is positive integer, W_iFor the precoding vector of 1*n, p₀…p_n-1Respectively indicate DMRS Each port numbers,Indicate the signal of the port the PT-RS i transmitted on sub-carrierk,It is illustrated respectively in sub- load The DMRS port p transmitted on wave k₀…p_n-1Signal.

5. the transmission method of Phase Tracking reference signal according to claim 4, which is characterized in that

The n DMRS port can be whole DMRS ports of transmitting terminal configuration, be also possible to corresponding with the port PT-RS i DMRS port group in whole DMRS ports, or a part in DMRS port group corresponding with the port PT-RS i DMRS port.

6. the transmission method of Phase Tracking reference signal according to claim 4, which is characterized in that the port PT-RS i's is pre- Encoded information is W_i；Either

W_iThe corresponding index value in all available precoding vector set.

7. a kind of method of reseptance of Phase Tracking reference signal is applied to receiving end characterized by comprising

Receive associated ports information and precoding information；Wherein, the associated ports information includes each Phase Tracking with reference to letter Number corresponding demodulated reference signal DMRS port group in the port PT-RS；The precoding information is each PT- during this data is sent Precoding information used by the port RS；And system predefines the port PT-RS and DMRS port that the precoding information indicates Mapping relations；

According to the associated ports information, the precoding information and the mapping relations, obtain all of the port PT-RS and DMRS。

8. the method for reseptance of Phase Tracking reference signal according to claim 7, which is characterized in that the reception is associated with end The step of message breath and precoding information, comprising:

9. the method for reseptance of Phase Tracking reference signal according to claim 8, which is characterized in that

The number of bits of the physical layer dynamic signaling can configure or be predefined as a fixed value by high-level signaling.

10. the method for reseptance of Phase Tracking reference signal according to claim 7, which is characterized in that further include:

11. the method for reseptance of Phase Tracking reference signal according to claim 10, which is characterized in that described according to The step of PT-RS and DMRS, progress channel estimation and channel compensation, comprising:

According to the precoding information, the mapping relations, first channel estimation value and the second channel estimated value, meter Calculate the phase change estimated value on each port PT-RS；

According to the phase change estimated value, to the second channel estimated value of the corresponding DMRS port group in each port PT-RS into Row compensation, obtains channel estimation results value.

12. the method for reseptance of Phase Tracking reference signal according to claim 11, which is characterized in that described according to Precoding information, the mapping relations, first channel estimation value and the second channel estimated value, calculate each PT-RS The step of phase change estimated value on port, comprising:

First channel estimation value and second channel estimated value are substituted into formulaRespectively Calculate the phase change on the orthogonal frequency division multiplex OFDM symbol l of the port PT-RS iWherein, P_k,lIndicate the port PT-RS i The first channel estimation value on OFDM symbol l subcarrier k,The each port DMRS is respectively indicated in subcarrier k On second channel estimated value.

13. a kind of transmitting device of Phase Tracking reference signal is applied to transmitting terminal characterized by comprising

Sending module, for sending associated ports information and precoding information to receiving end；Wherein, the associated ports packet Include the corresponding demodulated reference signal DMRS port group in each port Phase Tracking reference signal PT-RS；The precoding information is Precoding information used by each port PT-RS in the transmission of this data；And system predefines the precoding information and indicates The port PT-RS and DMRS port mapping relations；

First processing module, for determining corresponding to each port PT-RS according to the mapping relations and the precoding information Target sub-carriers each PT-RS port mapping to respective target sub-carriers is subjected to Phase Tracking reference signal transmission.

14. the transmitting device of Phase Tracking reference signal according to claim 13, which is characterized in that the sending module Include:

First sending submodule, for being sent to the associated ports information by high-level signaling or physical layer dynamic signaling The receiving end；

Second sending submodule, for the precoding information to be sent to the receiving end by physical layer dynamic signaling.

15. the transmitting device of Phase Tracking reference signal according to claim 14, which is characterized in that the physical layer is dynamic The number of bits of state signaling can configure or be predefined as a fixed value by high-level signaling.

16. the transmitting device of Phase Tracking reference signal according to claim 13, which is characterized in that the system is predetermined The mapping relations of the port PT-RS and DMRS port that the justice precoding information indicates are as follows:

Indicate that the port PT-RS i and n DMRS port meet formula

Wherein,

17. the transmitting device of Phase Tracking reference signal according to claim 16, which is characterized in that

18. the transmitting device of Phase Tracking reference signal according to claim 16, which is characterized in that the port PT-RS i's Precoding information is W_i；Either

W_iThe corresponding index value in all available precoding vector set.

19. a kind of reception device of Phase Tracking reference signal is applied to receiving end characterized by comprising

Receiving module, for receiving associated ports information and precoding information；Wherein, the associated ports information includes each phase The corresponding demodulated reference signal DMRS port group in the position port track reference signal PT-RS；The precoding information is this data Precoding information used by each port PT-RS in transmission；And system predefines the end PT-RS that the precoding information indicates The mapping relations of mouth and DMRS port；

Module is obtained, for obtaining all ends according to the associated ports information, the precoding information and the mapping relations The PT-RS and DMRS of mouth.

20. the reception device of Phase Tracking reference signal according to claim 19, which is characterized in that the receiving module Include:

First receiving submodule, for obtaining the associated ports letter by receiving high-level signaling or physical layer dynamic signaling Breath；

Second receiving submodule, for obtaining the precoding information that transmitting terminal is sent by receiving physical layer dynamic signaling.

21. the reception device of Phase Tracking reference signal according to claim 20, which is characterized in that

22. the reception device of Phase Tracking reference signal according to claim 19, which is characterized in that further include:

23. the reception device of Phase Tracking reference signal according to claim 22, which is characterized in that described according to The step of PT-RS and DMRS, progress channel estimation and channel compensation, comprising:

First channel estimation submodule carries out channel estimation for the PT-RS to each port respectively, obtains the first channel estimation Value；

Second channel estimates submodule, carries out channel estimation respectively for the DMRS to each port, obtains second channel estimation Value；

Submodule is estimated in phse conversion, for according to the precoding information, the mapping relations, first channel estimation value With the second channel estimated value, the phase change estimated value on each port PT-RS is calculated；

Channel compensation submodule, for according to the phase change estimated value, DMRS port group corresponding to each port PT-RS Second channel estimated value compensate, obtain channel estimation results value.

24. the reception device of Phase Tracking reference signal according to claim 23, which is characterized in that described Phse conversion estimation submodule is further used for first channel estimation value and second channel estimated value substituting into formulaCalculate separately the phase change on the orthogonal frequency division multiplex OFDM symbol l of the port PT-RS iWherein, P_k,lIndicate first channel estimation value of the port the PT-RS i on OFDM symbol l subcarrier k,Point It Biao Shi not the second channel estimated value of each port DMRS on sub-carrierk.

25. a kind of equipment of the core network, including memory, transceiver, processor and it is stored on the memory and can be described The computer program run on processor；Pass through it is characterized in that, the processor performs the steps of when executing described program The transceiver sends associated ports information and precoding information to receiving end；Wherein, the associated ports information includes each The corresponding demodulated reference signal DMRS port group in the port Phase Tracking reference signal PT-RS；The precoding information is this number According to precoding information used by the port PT-RS each in transmission；And system predefines the PT-RS that the precoding information indicates The mapping relations of port and DMRS port；According to the mapping relations and the precoding information, each port PT-RS institute is determined Each PT-RS port mapping to respective target sub-carriers is carried out Phase Tracking reference signal biography by corresponding target sub-carriers It is defeated.

26. a kind of terminal device, including memory, transceiver, processor and it is stored on the memory and can be at the place The computer program run on reason device；It is characterized in that, the processor performs the steps of when executing described program passes through institute State transceiver associated ports information and precoding information；Wherein, the associated ports information includes each Phase Tracking ginseng Examine the corresponding demodulated reference signal DMRS port group in the port signal PT-RS；The precoding information is every during this data is sent Precoding information used by a port PT-RS；And system predefines the port PT-RS and DMRS that the precoding information indicates The mapping relations of port；According to the associated ports information, the precoding information and the mapping relations, all of the port is obtained PT-RS and DMRS.

27. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that the program is by processor It is performed the steps of when execution and sends associated ports information and precoding information to receiving end；Wherein, the associated ports information Including the corresponding demodulated reference signal DMRS port group in each port Phase Tracking reference signal PT-RS；The precoding information For precoding information used by each port PT-RS in the transmission of this data；And system predefines the precoding information table The mapping relations of the port PT-RS and DMRS port that show；According to the mapping relations and the precoding information, determine each Target sub-carriers corresponding to the port PT-RS, by each PT-RS port mapping to respective target sub-carriers, carry out phase with Track reference signal transmission.

28. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that the program is by processor It is performed the steps of when execution and receives associated ports information and precoding information；Wherein, the associated ports information includes each The corresponding demodulated reference signal DMRS port group in the port Phase Tracking reference signal PT-RS；The precoding information is this number According to precoding information used by the port PT-RS each in transmission；And system predefines the PT-RS that the precoding information indicates The mapping relations of port and DMRS port；According to the associated ports information, the precoding information and the mapping relations, obtain Take the PT-RS and DMRS of all of the port.