CN108809570B

CN108809570B - Reference signal transmission method, related equipment and system

Info

Publication number: CN108809570B
Application number: CN201710309764.2A
Authority: CN
Inventors: 郤伟; 孙晓东; 丁昱; 宋扬; 沈晓冬; 施源
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2017-05-04
Filing date: 2017-05-04
Publication date: 2020-04-17
Anticipated expiration: 2037-05-04
Also published as: CN108809570A; WO2018201986A1

Abstract

The present invention provides a reference signal transmission method, related equipment and system. The method includes: generating at least two reference signal sequences; Preset processing is performed on at least one of the two reference signal sequences, wherein the preset processing includes at least one of phase rotation processing and puncturing processing, and the at least one reference signal sequence is the at least two reference signal sequences. There are reference signal sequences with overlapping resource elements in the pilot patterns of the reference signal sequences; the reference signal sequence is transmitted to the receiving end, wherein the transmitted reference signal sequence includes the reference signal sequence that has undergone the preset processing, or includes the reference signal sequence that has undergone the preset processing. The preset and unprocessed reference signals. The embodiments of the present invention can improve the performance of the reference signal.

Description

Reference signal transmission method, related equipment and system

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a reference signal transmission method, a related device, and a system.

Background

In future mobile communication systems (e.g., 5G), high frequency transmission technology and large-scale antenna array technology are attracting attention in order to achieve the goal of high downlink transmission rate (e.g., 20Gbps) and high uplink transmission rate (e.g., 10 Gbps). The high-frequency band has richer spectrum resources, but the transmission distance is limited due to large attenuation; while large-scale antenna arrays can provide larger beamforming gain, the antenna aperture is usually larger. However, the two may be combined: the short wavelength characteristic of the high frequency band can reduce the aperture of the large-scale antenna array, so that the dense deployment of the antenna is easier and more feasible; in turn, the larger beam forming gain generated by the large-scale antenna array can effectively resist the high-frequency transmission loss, thereby greatly expanding the transmission distance of the high-frequency transmission. Therefore, the high-frequency transmission technology and the large-scale antenna array technology complement each other, and the combination of the high-frequency transmission technology and the large-scale antenna array technology can achieve complementary advantages and is more attractive.

When the high-frequency transmission technology and the large-scale antenna array technology are used for transmission, the transmitting end often needs to transmit at least two reference signals to the receiving end, for example: a Phase Tracking Reference Signal (PTRS) and a demodulation reference signal (DMRS), wherein the PTRS is used by a receiving end to estimate phase noise according to the PTRS and then perform corresponding phase compensation, and the DMRS is used by the receiving end to demodulate a channel.

However, in practical applications, the pilot patterns of different reference signals are also different, and the pilot patterns of different reference signals may meet at one or more Resource Elements (REs), that is, there are overlapping one or more REs in the pilot patterns of different reference signals. If multiple reference signal sequences are transmitted directly at one or more overlapped REs, the multiple reference signal sequences will affect each other, resulting in lower performance of the reference signal.

Disclosure of Invention

The embodiment of the invention provides a reference signal transmission method, related equipment and a system, which aim to solve the problem of low performance of a reference signal.

In a first aspect, an embodiment of the present invention provides a reference signal transmission method, including:

generating at least two reference signal sequences;

if the pilot frequency patterns of the at least two reference signal sequences have overlapped resource elements, performing preset processing on at least one reference signal sequence of the at least two reference signal sequences, wherein the preset processing comprises at least one of phase rotation processing and punching processing;

transmitting the at least one reference signal sequence subjected to the preset processing to a receiving end;

if the reference signal sequence which is not subjected to the preset processing exists in the at least two reference signal sequences, transmitting the reference signal sequence which is not subjected to the preset processing to the receiving end;

and if the pilot frequency patterns of the at least two reference signals do not have overlapped resource particles, transmitting the generated at least two reference signals to the receiving end.

In a second aspect, an embodiment of the present invention provides a reference signal transmission method, including:

if the pilot frequency patterns of at least two reference signal sequences generated by a sending end have overlapped resource particles, receiving the reference signal sequences transmitted by the sending end, wherein the transmitted reference signal sequences comprise reference signal sequences subjected to preset processing or reference signals subjected to the preset processing and not subjected to the preset processing, and the preset processing comprises at least one of phase rotation processing and hole punching processing.

In a third aspect, an embodiment of the present invention provides a sending end, including:

a generating module for generating at least two reference signal sequences;

a processing module, configured to perform preset processing on at least one reference signal sequence of the at least two reference signal sequences if there are overlapping resource elements in pilot patterns of the at least two reference signal sequences, where the preset processing includes at least one of phase rotation processing and puncturing processing, and the at least one reference signal sequence is a reference signal sequence of the at least two reference signal sequences where there are overlapping resource elements in pilot patterns;

and a first transmission module, configured to transmit a reference signal sequence to a receiving end, where the transmitted reference signal sequence includes the reference signal sequence subjected to the preset processing, or includes the reference signal subjected to the preset processing and not subjected to the preset processing.

In a fourth aspect, an embodiment of the present invention provides a receiving end, including:

the device comprises a first receiving module and a second receiving module, wherein the first receiving module is used for receiving a reference signal sequence transmitted by a sending end if pilot frequency patterns of at least two reference signal sequences generated by the sending end have overlapped resource particles, the transmitted reference signal sequence comprises a reference signal sequence subjected to preset processing or comprises a reference signal subjected to the preset processing and not subjected to the preset processing, and the preset processing comprises at least one of phase rotation processing and hole punching processing.

In a fifth aspect, an embodiment of the present invention provides a reference signal transmission system, which is characterized by including a receiving end provided in the embodiment of the present invention and a transmitting end provided in the embodiment of the present invention.

Thus, in the embodiment of the present invention, at least two reference signal sequences are generated; if the pilot patterns of the at least two reference signal sequences have overlapping resource elements, performing preset processing on at least one reference signal sequence of the at least two reference signal sequences, wherein the preset processing includes at least one of phase rotation processing and hole punching processing, and the at least one reference signal sequence is a reference signal sequence of the at least two reference signal sequences in which the pilot patterns have overlapping resource elements; and transmitting a reference signal sequence to a receiving end, wherein the transmitted reference signal sequence comprises the reference signal sequence subjected to the preset processing or comprises the reference signal subjected to the preset processing and not subjected to the preset processing. Therefore, when the overlapped resource particles exist, at least one of the phase rotation processing and the punching processing is carried out on the reference signal sequence, so that the influence of the reference signal sequence on the overlapped resource particles can be reduced, and the performance of the reference signal can be improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive exercise.

FIG. 1 is a block diagram of a reference signal transmission;

fig. 2 is a flowchart of a reference signal transmission method according to an embodiment of the present invention;

FIG. 3 is a diagram of a pilot pattern of a reference signal according to an embodiment of the present invention;

FIG. 4 is a diagram illustrating a pilot pattern of another reference signal according to an embodiment of the present invention;

FIG. 5 is a diagram illustrating a pilot pattern of another reference signal according to an embodiment of the present invention;

fig. 6 is a flowchart of another reference signal transmission method according to an embodiment of the present invention;

FIG. 7 is a diagram illustrating a pilot pattern of another reference signal according to an embodiment of the present invention;

FIG. 8 is a schematic diagram of phase rotation of a reference signal according to an embodiment of the present invention;

FIG. 9 is a schematic diagram of phase rotation of another reference signal according to an embodiment of the present invention;

FIG. 10 is a diagram illustrating a pilot pattern of another reference signal according to an embodiment of the present invention;

FIG. 11 is a schematic diagram of phase rotation of another reference signal according to an embodiment of the present invention;

fig. 12 is a flowchart of another reference signal transmission method according to an embodiment of the present invention;

fig. 13 is a flowchart of another reference signal transmission method according to an embodiment of the present invention;

fig. 14 is a diagram illustrating puncturing of another reference signal according to an embodiment of the present invention;

fig. 15 is a diagram illustrating puncturing of another reference signal according to an embodiment of the present invention;

fig. 16 is a diagram illustrating puncturing of another reference signal according to an embodiment of the present invention;

fig. 17 is a diagram illustrating puncturing of another reference signal according to an embodiment of the present invention;

fig. 18 is a flowchart of another reference signal transmission method according to an embodiment of the present invention;

FIG. 19 is a schematic diagram of phase rotation of another reference signal according to an embodiment of the present invention;

fig. 20 is a flowchart of another reference signal transmission method according to an embodiment of the present invention;

FIG. 21 is a diagram illustrating a pilot pattern of another reference signal according to an embodiment of the present invention;

FIG. 22 is a schematic diagram of phase rotation of another reference signal according to an embodiment of the present invention;

fig. 23 is a diagram illustrating puncturing of another reference signal according to an embodiment of the present invention;

fig. 24 is a flowchart of another reference signal transmission method according to an embodiment of the present invention;

FIG. 25 is a diagram illustrating a pilot pattern of another reference signal according to an embodiment of the present invention;

FIG. 26 is a schematic diagram of phase rotation of another reference signal according to an embodiment of the present invention;

fig. 27 is a flowchart of another reference signal transmission method according to an embodiment of the present invention;

fig. 28 is a structural diagram of a transmitting end according to an embodiment of the present invention;

fig. 29 is a structural diagram of another transmitting end according to an embodiment of the present invention;

fig. 30 is a structural diagram of a receiving end according to an embodiment of the present invention;

fig. 31 is a structural diagram of another receiving end according to an embodiment of the present invention;

fig. 32 is a block diagram of another transmitting end according to an embodiment of the present invention;

fig. 33 is a structural diagram of another receiving end according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, fig. 1 is a structural diagram of a reference signal transmission system to which an embodiment of the present invention is applicable, and as shown in fig. 1, the reference signal transmission system includes a transmitting end 11 and a receiving end 12, where the transmitting end 11 may be a base station or a terminal, and the receiving end 12 may also be a terminal or a base station, for example: if the transmitting end 11 is a base station and the receiving end 12 is a terminal, communication between the terminal and the base station can be achieved, or if the transmitting end 11 is a terminal and the receiving end 12 is a base station, communication between the terminal and the base station can also be achieved, or if the transmitting end 11 is a base station and the receiving end 12 is a base station, communication between the base station and the base station can be achieved, or if the transmitting end 11 is a terminal and the receiving end 12 is a terminal, communication between the terminal and the terminal can also be achieved. Of course, in the embodiment of the present invention, the sending end 11 is not limited to be only a terminal or a base station, for example: the sending end 11 may also be other network-side devices, and similarly, the receiving end 12 is not limited to only a terminal or a device, for example: the second receiving end 12 may also be other network side devices, which is not limited in this embodiment of the present invention. In fig. 1, a transmitting end 11 is taken as a base station, and a receiving end 12 is taken as a terminal for example. The terminal may be a User Equipment (UE), for example: the terminal side Device may be a Mobile phone, a tablet personal Computer (tablet personal Computer), a Laptop Computer (Laptop Computer), a Personal Digital Assistant (PDA), a Mobile Internet Device (MID), or a Wearable Device (Wearable Device), and it should be noted that the specific type of the terminal is not limited in the embodiments of the present invention. The base station may be a macro station, such as an LTE eNB, 5G NR NB, or the like; or a small station, such as a Low Power Node (LPN) pico, femto, or an Access Point (AP); the base station may also be a network node formed by a Central Unit (CU) and a plurality of Transmission Reception Points (TRPs) managed and controlled by the CU. In addition, one or more cells (e.g., different frequency bins or sector splits) are located under one base station. It should be noted that the specific type of the base station is not limited in the embodiment of the present invention.

It should be noted that the specific types of the transmitting end 11 and the receiving end 12 are not limited in the embodiments of the present invention, and specific functions of the transmitting end 11 and the receiving end 12 will be described in detail through the following embodiments.

Referring to fig. 2, fig. 2 is a flowchart of a method for sending a time sequence number according to an embodiment of the present invention, and as shown in fig. 2, the method includes the following steps:

referring to fig. 2, fig. 2 is a flowchart of a reference signal transmission method according to an embodiment of the present invention, and as shown in fig. 2, the method includes the following steps:

step 201, generating at least two reference signal sequences.

The at least two generated reference signal sequences may be at least two reference signal sequences with no overlapped resource elements in the pilot pattern, so as to avoid the influence of the reference signal sequences on the overlapped resource elements, so as to improve the performance of the reference signal, for example: as shown in fig. 3. Or, in the at least two generated reference signal sequences, there may be overlapping resource elements between the pilot patterns of one or more reference signal sequences and the pilot patterns of other reference signal sequences, and there may be no overlapping resource elements between the pilot patterns of another one or more reference signal sequences and the pilot patterns of other reference signal sequences, for example: as shown in fig. 4; or the generated pilot patterns of at least two reference signal sequences have overlapping resource elements, for example: as shown in fig. 5.

In addition, the at least two reference signal sequences may include at least two reference signal sequences among a PTRS, a DMRS, a synchronization signal block (SS block), a primary synchronization signal (NR-PSS), a secondary synchronization signal (NR-SSs), a channel state information reference signal (CSI-RS), a Sounding Reference Signal (SRS), and a physical broadcast channel (NR-h). Of course, other reference signal sequences may be used, and the embodiment of the present invention is not limited thereto.

Step 202, if there are overlapping resource elements in the pilot patterns of the at least two reference signal sequences, performing a preset process on at least one reference signal sequence of the at least two reference signal sequences, where the preset process includes at least one of a phase rotation process and a puncturing process, and the at least one reference signal sequence is a reference signal sequence in which there are overlapping resource elements in the pilot patterns of the at least two reference signal sequences.

The overlapped resource elements exist in the pilot patterns of at least two reference signal sequences may be that the overlapped resource elements exist in the pilot patterns of a certain part of the reference signal sequences, for example: as shown in fig. 4; or the pilot patterns of at least two reference signal sequences have overlapping resource elements, the pilot patterns of the at least two reference signal sequences both have overlapping resource elements, for example: as shown in fig. 5.

Wherein the preset processing may be at least one of phase rotation processing and hole punching processing performed on the at least one reference signal sequence. Wherein, the phase rotation process may be to rotate the phases of the reference signal sequences, so as to reduce the influence of the reference signal sequences on each other at the overlapped resource particles, for example: the phase of the symbols of the at least two reference signal sequences at the overlapping resource element is the same or close by rotating the phase of the at least one reference signal sequence, thereby avoiding or reducing the influence of the reference signal sequences on each other at the overlapping resource element. The puncturing process may puncture the at least one reference signal sequence in the overlapping resource element, so that only one reference signal sequence is transmitted in the overlapping resource element, thereby avoiding an influence on the overlapping resource element.

Step 203, transmitting a reference signal sequence to a receiving end, wherein the transmitted reference signal sequence includes the reference signal sequence subjected to the preset processing, or includes the reference signal subjected to the preset processing and not subjected to the preset processing.

If all of the at least two reference signals are only subjected to preset processing, step 203 transmits a reference signal sequence including the reference signal sequence subjected to the preset processing; if the at least two reference signals are only partially pre-processed, step 203 transmits a reference signal sequence including the pre-processed reference signals and the non-pre-processed reference signals.

In addition, when only phase rotation is performed, the at least one reference signal sequence subjected to the predetermined processing may be transmitted according to a pilot pattern, and when puncturing is performed, the at least one reference signal sequence subjected to the predetermined processing may be transmitted according to a pilot pattern in combination with puncturing, that is, on resource elements other than punctured among resource elements corresponding to the pilot pattern.

For reference signal sequences that have not been subjected to the preset processing, the transmission can be performed directly according to the pilot patterns of the reference signal sequences.

In the embodiment of the invention, at least two reference signal sequences are generated; if the pilot patterns of the at least two reference signal sequences have overlapping resource elements, performing preset processing on at least one reference signal sequence of the at least two reference signal sequences, wherein the preset processing includes at least one of phase rotation processing and hole punching processing, and the at least one reference signal sequence is a reference signal sequence of the at least two reference signal sequences in which the pilot patterns have overlapping resource elements; and transmitting a reference signal sequence to a receiving end, wherein the transmitted reference signal sequence comprises the reference signal sequence subjected to the preset processing or comprises the reference signal subjected to the preset processing and not subjected to the preset processing. Therefore, when the overlapped resource particles exist, at least one of the phase rotation processing and the punching processing is carried out on the reference signal sequence, so that the influence of the reference signal sequence on the overlapped resource particles can be reduced, and the performance of the reference signal can be improved.

Referring to fig. 6, fig. 6 is a flowchart of another reference signal transmission method according to an embodiment of the present invention, as shown in fig. 6, including the following steps:

step 601, generating at least two reference signal sequences.

For the at least two generated reference signal sequences, reference may be made to the corresponding description of the embodiment shown in fig. 2, which is not described herein again.

Preferably, the at least two reference signal sequences comprise a phase tracking reference signal sequence and a demodulation reference signal sequence; or

The at least two reference signal sequences comprise a phase tracking reference signal sequence and a synchronization signal block.

Step 602, if there are overlapping resource particles in the pilot patterns of the at least two reference signal sequences, performing a first phase rotation process on a first reference signal sequence of the at least two reference signal sequences to obtain a first target reference signal sequence, where a symbol of the first target reference signal sequence at the overlapping resource particle is the same as a symbol of a second reference signal sequence at the overlapping resource particle, and the second reference signal sequence is a reference signal sequence where there are overlapping resource particles in the pilot patterns of the at least two reference signal sequences and the pilot pattern of the first reference signal sequence.

The symbol may be understood as a resource of one subcarrier in orthogonal frequency division multiplexing OFDM, for example: a square grid as shown in figure 7.

The first reference signal sequence may be one or more reference signal sequences of the at least two reference signal sequences, for example: a PTRS sequence or a DMRS reference sequence, or a plurality of DMRS sequences included in the at least two reference signal sequences. The first phase rotation processing on the first reference signal sequence may be to rotate the phase of the first reference signal sequence by a preset phase, where the preset phase is equal to a difference between the same phase of the symbol of the first reference signal sequence at the overlapping resource element and the phase of the symbol of the second reference signal sequence at the overlapping resource element. For example: as shown in FIG. 7, the PTRS sequence intersects with the DMRS sequence of a single symbol, and the pilot patterns of the PTRS sequence and the DMRS sequence are shown in FIG. 7. Wherein, the 4 th line is a pilot pattern of the PTRS sequence,

for the reference signal symbol of the PTRS sequence on the nth symbol, n is 1, …, M. Column 4 is a pilot pattern of the DMRS sequence,

for the reference signal symbol of the DMRS sequence on the nth subcarrier, n is 1, …, K. Suppose that the two overlap with the kth subcarrier of the mth symbol, i.e. the resource element filled with gray, M is greater than or equal to 1 and less than or equal to M, and K is greater than or equal to 1 and less than or equal to K.

In order to make the phase of the symbols of the DMRS sequence and the PTRS sequence at the overlapping resource elements the same, the entire PTRS sequence is phase-rotated by θ here, and the DMRS sequence remains unchanged. By

Available theta α_m-β_k. Thus, the rotated PTRS sequence is

As shown in fig. 8.

Another example is: the PTRS sequence intersects with the DMRS sequence of a single symbol, and pilot patterns of the PTRS sequence and the DMRS sequence of a single symbol overlap with a kth subcarrier of an mth symbol, assuming that conditions are the same as those in the example shown in fig. 7, and are not repeated here, as shown in fig. 7.

In order to make the phase of the symbols of the DMRS sequence and PTRS sequence at the overlapping resource elements the same, here the entire DMRS sequence is phase rotated by phi, the PTRS sequence remains unchanged. By

Available phi β_k-α_m. Thus, after rotatingThe DMRS sequence of

As shown in fig. 9.

Another example is: the at least two reference signal sequences include two DMRS sequences, that is, a PTRS sequence intersects with DMRS sequences of two symbols, and pilot patterns of the two DMRS sequences are shown in fig. 10. Wherein, the 4 th line is a pilot pattern of PTRS,

for the reference signal symbol of the PTRS sequence on the nth symbol, n is 1, …, M. Columns 4 and 8 are pilot patterns for DMRS sequences,

and

reference signal symbols on the nth subcarrier on the two DMRS sequences, n being 1, …, K, respectively. Assuming that the two meet at the kth subcarrier of the m1 th and m2 th symbols, i.e., gray padding resource elements, 1 ≦ m1<m2≤M,1≤k≤K。

In order to make the DMRS sequence and PTRS sequence the same phase of the symbols at the overlapping resource elements, here the first DMRS sequence is phase rotated by₁Phase rotating the second DMRS sequence by phi₂The PTRS remains unchanged. By

Can obtain phi₁＝β_k-α_m1. In the same way, by

Can obtain phi₂＝γ_k-α_m2. Thus, the first DMRS sequence after rotation is

The rotated second DMRS sequence is

As shown in fig. 11.

It can be achieved through step 602 that the phase of the symbol of the first target reference signal sequence at the overlapping resource element is the same as the phase of the symbol of the second reference signal sequence at the overlapping resource element, so that the two reference signal sequences have no influence when the overlapping resources are multiplexed.

Optionally, the phase rotation parameter of the first phase rotation process is notified to the receiving end through physical layer signaling, media intervention control MAC layer signaling, or high layer signaling. This may inform that the phase of the received first reference signal sequence is rotated.

Step 603, transmitting the first target reference signal sequence and the second reference signal sequence to the receiving end.

The first target reference signal is obtained by performing phase rotation only, so that the first target reference signal sequence can be transmitted directly according to the first reference signal sequence.

Since the second reference signal sequence is not phase-rotated, it can be directly transmitted according to the pilot pattern of the second reference signal sequence.

In addition, the multiplexing transmission of the first reference signal sequence and the second reference signal sequence at the overlapped resource element can be realized through the steps 603 and 604, and the overhead of the reference signal sequence is reduced on the premise of not losing the performance of each reference signal.

Optionally, in this embodiment of the present invention, if there is no overlapping resource element in the pilot patterns of the at least two reference signals, the generated at least two reference signals are transmitted to the receiving end.

In this step, it can be realized that there is no overlapping resource element in the generated pilot patterns of the at least two reference signal sequences, that is, in the embodiment of the present invention, there is no overlapping resource element in the pilot patterns designed for the at least two reference signal sequences when the at least two reference signal sequences are generated. The influence between the reference signal sequences can be avoided by step 205 to improve the performance of the reference signal sequences.

In this embodiment, when there are overlapping resource particles, the phase rotation processing may be performed on the first reference signal sequence through the above steps, so that the influence of the first reference signal sequence and the second reference signal sequence on the overlapping resource particles may be reduced, and the performance of the reference signal may be improved.

Referring to fig. 12, fig. 12 is a flowchart of another reference signal transmission method according to an embodiment of the present invention, as shown in fig. 12, including the following steps:

step 1201, generating at least two reference signal sequences.

Step 1202, if there are overlapping resource particles in the pilot patterns of the at least two reference signal sequences, performing second phase rotation processing on a first reference signal sequence of the at least two reference signal sequences to obtain a second target reference signal sequence, and performing third phase rotation processing on a second reference signal sequence of the at least two reference signal sequences to obtain a third target reference signal sequence, where a symbol of the second target reference signal sequence at the overlapping resource particle is the same as a symbol of the third target reference signal sequence at the overlapping resource particle in phase, and the overlapping resource particle is an overlapping resource particle between a pilot pattern of the second reference signal sequence and a pilot pattern of the first reference signal sequence.

The first reference signal sequence may be one or more reference signal sequences of the at least two reference signal sequences, for example: a PTRS sequence or a DMRS reference sequence, or a plurality of DMRS sequences included in the at least two reference signal sequences. The second reference signal sequence may be a reference signal sequence other than the first reference signal sequence described above. The second phase rotation processing is performed on the first reference signal sequence of the at least two reference signal sequences to obtain the second target reference signal sequence, and the third phase rotation processing is performed on the second reference signal sequence of the at least two reference signal sequences to obtain the third target reference signal sequence, where corresponding phase rotations are performed according to a difference between a phase of a symbol of the first target reference signal sequence at the overlapping resource element and a phase of a symbol of the second target reference signal sequence at the overlapping resource element, so that a phase of a symbol of the second target reference signal sequence at the overlapping resource element is the same as a phase of a symbol of the third target reference signal sequence at the overlapping resource element.

Step 1203, transmitting the second target reference signal sequence and the third target reference signal sequence to the receiving end.

It can be achieved through

steps

1202 and 1203 that the phase of the symbol of the second target reference signal sequence at the overlapping resource element is the same as the phase of the symbol of the third target reference signal sequence at the overlapping resource element, so that the two reference signal sequences have no influence when the overlapping resources are multiplexed. Wherein transmitting the second and third target reference signal sequences may be based on pilot patterns according to the first and second reference signal sequences.

Optionally, the phase rotation parameters of the second phase rotation processing and the third phase rotation processing are notified to the receiving end through physical layer signaling, MAC layer signaling, or higher layer signaling. This may inform that the phases of the received first reference signal sequence and the second reference signal sequence are rotated.

In this embodiment, when there are overlapping resource particles, the phase rotation processing may be performed on the first reference signal sequence and the second reference signal sequence through the above steps, so that the influence of the first reference signal sequence and the second reference signal sequence on the overlapping resource particles may be reduced, and the performance of the reference signal may be improved. And at least two reference signal sequences without overlapped resource elements can be directly generated, so that the performance of the reference signals can be improved.

Referring to fig. 13, fig. 13 is a flowchart of another reference signal transmission method according to an embodiment of the present invention, as shown in fig. 13, including the following steps:

step 1301, generating at least two reference signal sequences.

Step 1302, if there are overlapping resource elements in the pilot patterns of the at least two reference signal sequences, puncturing symbols of a first reference signal sequence at the overlapping resource elements, so that the first reference signal sequence is empty at the overlapping resource elements, where the first reference signal sequence is a reference signal sequence of the at least two reference signals except for a second reference signal sequence, and the overlapping resource elements are overlapping resource elements between the pilot patterns of the second reference signal sequence and the pilot patterns of the first reference signal sequence.

The puncturing process may be to control symbols of the first reference signal sequence at the overlapping resource element not to be transmitted, that is, the first reference signal sequence is null at the overlapping resource element. The first reference signal sequence may be one or more reference signal sequences of the at least two reference signal sequences, for example: a PTRS sequence or a DMRS reference sequence, or a plurality of DMRS sequences included in the at least two reference signal sequences.

For example: the PTRS sequence and the DMRS sequence of a single symbol intersect with the kth subcarrier of the mth symbol, and the assumption conditions are the same as those in the first embodiment, which is not described herein again. The pilot patterns of both are shown in fig. 7. At the intersection resource element, the reference symbol b (k) of the DMRS sequence on the resource element is reserved, and the reference symbol a (m) of the PTRS sequence on the resource element is punctured, as shown in fig. 14.

When the PTRS sequence is

The receiving end may know the puncturing operation in advance. For the symbol where the intersection resource element is located, the receiving end may perform phase noise estimation according to DMRS (e.g. b (k)), for example: DMRS was used as PTRS.

In this embodiment, the DMRS sequence is kept unchanged and the PTRS sequence is punctured. The present invention is not limited thereto. For example, when one or more overlapping resource elements exist for PTRS and at least one of NR-PSS, NR-SSS, CSI-RS, SRS, and NR-PBCH, the PTRS symbols at the overlapping resource elements may be punctured leaving the NR-PSS, NR-SSS, CSI-RS, SRS, and NR-PBCH unchanged.

Optionally, the puncturing the symbols of the first reference signal sequence at the overlapping resource element to make the first reference signal sequence null at the overlapping resource element includes:

adjusting the subcarrier position of the symbol of the first reference signal sequence at the overlapped resource element to a target subcarrier in a preset adjacent resource area;

the method further comprises the following steps:

and transmitting the first reference signal sequence to the receiving end on the target subcarrier.

In this embodiment, after the first reference signal sequence is punctured, the punctured first reference signal sequence may be transferred to a target subcarrier for transmission, so as to ensure the performance of the reference signal, for example: when the first reference signal is the PTRS, the estimation performance of the phase noise can be ensured.

Optionally, the adjusting the subcarrier position of the symbol of the first reference signal sequence at the overlapping resource element to a target subcarrier in a preset adjacent resource region includes:

and adjusting the subcarrier position of the symbol of the first reference signal sequence at the overlapped resource element to a target subcarrier in a preset adjacent resource area through at least one adjustment mode of subcarrier position adjustment, frequency domain density adjustment, frequency domain interval adjustment and pilot frequency pattern adjustment.

The adjusting of the subcarrier position may be adjusting the subcarrier position of a symbol at the overlapped resource element, adjusting the frequency domain density may be adjusting the density of the first reference signal sequence in the frequency domain, adjusting the frequency domain interval may be adjusting the interval of the first reference signal sequence in the frequency domain, and adjusting the pilot pattern may be adjusting the pilot pattern of the first reference signal sequence. For example: the PTRS intersects with a synchronization signal block (SS block), which may be composed of NR-PSS, NR-SSS, and NR-PBCH. The PTRS symbols at the overlapping resource elements are punctured as shown in fig. 15. In order to ensure the phase noise estimation performance of the resource elements in the preset adjacent resource region of the punctured PTRS, the position of the subcarrier of the PTRS in the region can be adjusted to keep the frequency density unchanged, as shown in fig. 16 and a or B.

Another example is: the PTRS intersects with a synchronization signal block (SS block), which may be composed of NR-PSS, NR-SSS, and NR-PBCH. The PTRS symbols at the overlapping resource elements are punctured as shown in fig. 15. In order to ensure the phase noise estimation performance of resource elements in the preset adjacent resource region of the punctured PTRS, the frequency domain density and the frequency domain interval of the PTRS in the region may be changed by adjusting the subcarrier position or adding PTRS subcarriers, as shown in fig. 17.

In this embodiment, the subcarrier position of the symbol of the first reference signal sequence at the overlapped resource element is adjusted to the target subcarrier in the preset adjacent resource region by subcarrier position adjustment, frequency domain density adjustment, frequency domain interval adjustment and pilot pattern adjustment, so that the subcarrier of the first reference signal sequence can be flexibly adjusted, and the performance of the first reference signal sequence in the preset adjacent resource region can be ensured, for example: and the estimation performance of the phase noise of the PTRS in the preset adjacent resource region is ensured.

Optionally, the preset adjacent resource region includes:

subcarriers having the same OFDM symbol as the overlapped resource elements; or

An OFDM symbol having the same subcarrier as the overlapped resource element;

wherein the preset adjacent resource region does not include resources occupied by the second reference signal sequence.

The preset adjacent resource regions may refer to diagonal filling regions shown in fig. 15 to fig. 17, which are not described herein again.

Optionally, the position of the target subcarrier is notified to the receiving end through physical layer signaling, MAC layer signaling, or higher layer signaling. Therefore, the receiving end can accurately receive the first reference signal sequence on the target subcarrier.

And step 1303, transmitting the second reference signal sequence and the punctured first reference signal sequence to a receiving end.

Wherein transmitting the first reference signal sequence may be transmitting on resource elements that are not punctured on resource elements corresponding to a pilot pattern of the first reference signal sequence.

Wherein transmitting the second reference signal sequence may be according to a pilot pattern of the second reference signal sequence.

In this embodiment, the above steps can be used to perform puncturing processing on the first reference signal sequence when there are overlapping resource particles, so as to avoid the first reference signal sequence and the second reference signal sequence from affecting the overlapping resource particles, so as to improve the performance of the reference signal, and the receiving end can also use the reference signal sequence received by the overlapping resource particles to implement the function of another reference signal sequence, for example: the DMRS received on the overlapping resource elements is used for estimation of phase noise. And at least two reference signal sequences without overlapped resource elements can be directly generated, so that the performance of the reference signals can be improved.

Referring to fig. 18, fig. 18 is a flowchart of another reference signal transmission method according to an embodiment of the present invention, and as shown in fig. 18, the method includes the following steps:

step 1801, at least two reference signal sequences are generated.

Step 1802, if there are overlapping resource elements in the pilot patterns of the at least two reference signal sequences, performing a fourth phase rotation process on a first reference signal sequence of the at least two reference signal sequences to obtain a fourth target reference signal sequence, where a symbol of the fourth target reference signal sequence at the first overlapping resource element is the same as a symbol of a second reference signal sequence at the first overlapping resource element, the second reference signal sequence is at least one reference signal sequence of the at least two reference signals except the first reference signal sequence, and the first overlapping resource element is an overlapping resource element of the pilot patterns of the first reference signal sequence and the pilot patterns of the second reference signal sequence.

The fourth phase rotation process herein may refer to the first phase rotation process described in the above embodiments, which is not described herein again and can achieve the same beneficial effects.

Step 1803, performing puncturing on symbols of a fourth target reference signal sequence at a second overlapping resource element, so that the fourth target reference signal sequence is empty at the second overlapping resource element, where the second overlapping resource element is an overlapping resource element of a pilot pattern of the first reference signal sequence and a pilot pattern of a third reference signal sequence, and the third reference signal sequence is at least one of the at least two reference signals except for the first reference signal sequence and the second reference signal sequence.

The puncturing process herein may refer to the puncturing process described in the above embodiments, which is not described herein again, and the same beneficial effects may be achieved.

The

steps

1802 and 1803 may implement a combination of phase rotation processing and puncturing processing to further improve the performance of the system. For example: the at least two reference signal sequences include two DMRS sequences, that is, a PTRS sequence intersects with DMRS sequences of two symbols, and pilot patterns of the two DMRS sequences are shown in fig. 10. Wherein the vertical lines are filled with a pilot pattern of PTRS,

for the reference signal symbol of the PTRS sequence on the nth symbol, n is 1, …, M. The horizontal lines are filled with pilot patterns of DMRS sequences,

and

reference signal symbols on the nth subcarrier on the two DMRS sequences, n being 1, …, K, respectively. Assuming that the two are intersected at the kth subcarrier of the m1 th and m2 th symbols, namely, the black dot filling resource element, 1 ≦ m1<m2≤M,1≤k≤K。

In order to make the DMRS sequence and PTRS sequence the same in phase of the symbols at the overlapping resource elements, the entire PTRS sequence is phase rotated by θ here, the first DMRS sequence remains unchanged. By

Available theta α_m-β_k. Thus, the rotated PTRS sequence is

As shown in fig. 19, and the PTRS sequence is compared to the second DMRS sequenceThe symbols of the columns of overlapping particles are punctured.

Step 1804, transmitting the second reference signal sequence, the third reference signal sequence and the punctured fourth target reference signal sequence to the receiving end.

Wherein transmitting the fourth target reference signal sequence may be transmitting on resource elements that are not punctured on resource elements corresponding to the pilot pattern of the first reference signal sequence. Wherein transmitting the first reference signal sequence may be according to a pilot pattern of the second reference signal sequence.

In this embodiment, the phase rotation and the puncturing process may be performed on the first reference signal sequence when the overlapping resource particles exist through the above steps, so that the influence of multiple reference signal sequences on the overlapping resource particles may be avoided, and the performance of the reference signal may be improved. And at least two reference signal sequences without overlapped resource elements can be directly generated, so that the performance of the reference signals can be improved.

Referring to fig. 20, fig. 20 is a flowchart of another reference signal transmission method according to an embodiment of the present invention, as shown in fig. 20, including the following steps:

step 2001, generating at least two reference signal sequences, wherein the at least two reference signal sequences include a first reference signal sequence, a second reference signal sequence and a third reference signal sequence, overlapping resource elements exist in pilot patterns of the first reference signal sequence and the second reference signal sequence, no overlapping resource elements exist in pilot patterns of the third reference signal sequence and the first reference signal sequence, and no overlapping resources exist in pilot patterns of the third reference signal sequence and the second reference signal sequence.

Step 2002, if there are overlapping resource elements in the pilot patterns of the at least two reference signal sequences, perform a preset process on the first reference signal sequence, where the preset process includes at least one of a phase rotation process and a puncturing process.

Here, the preset processing here may refer to the preset processing described in the above embodiments, for example: the first reference signal sequence is subjected to phase rotation processing or puncturing processing, or phase rotation processing and puncturing processing, which are not described herein again, and the same beneficial effects can be achieved.

For example: the at least two reference signal sequences include two DMRS sequences, that is, a PTRS sequence intersects with DMRS sequences of two symbols, and pilot patterns of the two DMRS sequences are shown in fig. 21. Where line 4 is filled with a pilot pattern for PTRS,

for the reference signal symbol of the PTRS sequence on the nth symbol, n is 1, …, M. The 1 st, 3 rd, 5 th and 7 th subcarriers of column 4 are pilot patterns of the first DMRS sequence, column 8 is a pilot pattern of the DMRS sequence,

and

reference signal symbols on the nth subcarrier on the two DMRS sequences, respectively, n1 equals 1,3, 5, 7, n2 equals 1, …, K. Assuming that the PTRS sequence and the second DMRS sequence are intersected at the kth subcarrier of the m2 th symbol, namely gray filling resource elements, 1 is more than or equal to m1<m2≤M,1≤k≤K。

In order to make the phase of the symbols of the second DMRS sequence and the PTRS sequence at the overlapping resource elements the same, here the entire PTRS sequence is phase rotated by θ, the second DMRS sequence being left unchanged. By

Available theta α_m-β_k. Thus, the rotated PTRS sequence is

As shown in fig. 22. Or the PTRS sequence may be punctured in the symbols of the overlapping resource elements, such as shown in fig. 23.

And step 2003, transmitting the second reference signal sequence, the third reference signal sequence and the first reference signal sequence subjected to the preset processing to a receiving end.

When only phase rotation is performed, the first reference signal sequence subjected to the preset processing can be transmitted according to a pilot pattern, and when puncturing is performed, the first reference signal sequence subjected to the preset processing is transmitted according to the pilot pattern in combination with puncturing, that is, the first reference signal sequence is transmitted on resource elements except for the punctured resource elements in the resource elements corresponding to the pilot pattern.

Wherein transmitting the second reference signal sequence and the third reference signal sequence may be according to a pilot pattern of the second reference signal sequence.

In this embodiment, the non-overlapping resource particles and the preset processing may be combined through the above steps, so as to increase the flexibility of the system. And at least two reference signal sequences without overlapped resource elements can be directly generated, so that the performance of the reference signals can be improved.

Referring to fig. 24, fig. 24 is a flowchart of another reference signal transmission method according to an embodiment of the present invention, and as shown in fig. 24, the method includes the following steps:

step 2401, generating at least two reference signal sequences.

Step 2402, if there are overlapping resource elements in the pilot patterns of the at least two reference signal sequences, performing a preset process on the first reference signal sequence, where the preset process includes at least one of a phase rotation process and a puncturing process, and the at least two reference signal sequences include a first reference signal sequence and a second reference signal sequence, where the pilot pattern of the second reference signal sequence occupies at least two consecutive OFDM symbols, and overlapping resource elements exist in a part of the OFDM symbols occupied by the pilot pattern of the first reference signal sequence and the pilot pattern of the second reference signal sequence.

For example: the PTRS intersects DMRSs of two adjacent OFDM symbols, and pilot patterns of the two are shown in fig. 25. Wherein, the 4 th symbol of the 4 th row is taken as the pilot pattern of PTRS,

for PTRS reference signal notation, n is 1, …, M. Columns 3 and 4 are pilot patterns for DMRS, i.e. two symbols,

and

reference signal symbols on the nth subcarrier on the two DMRS symbols, n is 1, …, K. It is assumed that the PTRS intersects the second DMRS symbol at the red resource element.

In order to enable the phase of the symbols of the DMRS and the PTRS at the intersection resource particles to be the same, the PTRS sequence is subjected to phase rotation theta, and the DMRS is kept unchanged. By

Available theta α₁-γ_k. Thus, the rotated PTRS sequence is

As shown in fig. 26. Of course, the punching process is also performed here, and this is not limited.

Step 2403, transmitting the second reference signal sequence and the preset processed first reference signal sequence to a receiving end.

Referring to fig. 27, fig. 27 is a flowchart of another reference signal transmission method according to an embodiment of the present invention, as shown in fig. 27, including the following steps:

step 2701, if there are overlapped resource elements in the pilot patterns of at least two reference signal sequences generated by the sending end, receiving the reference signal sequence transmitted by the sending end, where the transmitted reference signal sequence includes a reference signal sequence subjected to preset processing or includes reference signals subjected to the preset processing and not subjected to the preset processing, and the preset processing includes at least one of phase rotation processing and hole punching processing.

Optionally, the preset processing includes:

performing first phase rotation processing on a first reference signal sequence of the at least two reference signal sequences to obtain a first target reference signal sequence, wherein a symbol of the first target reference signal sequence at the overlapping resource element has the same phase as a symbol of a second reference signal sequence at the overlapping resource element, and the second reference signal sequence is a reference signal sequence in which overlapping resource elements exist between a pilot pattern of the at least two reference signals and a pilot pattern of the first reference signal sequence;

the receiving of the reference signal sequence transmitted by the transmitting end includes:

and receiving the first target reference signal sequence and the second reference signal sequence transmitted by a transmitting end.

Optionally, the phase rotation parameter of the first phase rotation process is notified by the sending end through physical layer signaling, MAC layer signaling, or higher layer signaling.

Optionally, the preset processing includes:

performing second phase rotation processing on a first reference signal sequence of the at least two reference signal sequences to obtain a second target reference signal sequence, and performing third phase rotation processing on a second reference signal sequence of the at least two reference signal sequences to obtain a third target reference signal sequence, wherein a symbol of the second target reference signal sequence at the overlapping resource element has the same phase as a symbol of the third target reference signal sequence at the overlapping resource element, and the overlapping resource element is an overlapping resource element between a pilot pattern of the second reference signal sequence and a pilot pattern of the first reference signal sequence;

and receiving the second target reference signal sequence and the third target reference signal sequence transmitted by a transmitting end.

Optionally, the phase rotation parameters of the second phase rotation processing and the third phase rotation processing are notified by the sending end through physical layer signaling, MAC layer signaling, or higher layer signaling.

Optionally, the preset processing includes:

puncturing symbols of a first reference signal sequence at the overlapping resource element, so that the first reference signal sequence is empty at the overlapping resource element, wherein the first reference signal sequence is a reference signal sequence of the at least two reference signals except for a second reference signal sequence, and the overlapping resource element is an overlapping resource element between a pilot pattern of the second reference signal sequence and a pilot pattern of the first reference signal sequence;

and receiving the second reference signal sequence transmitted by the transmitting end and the first reference signal sequence subjected to the puncturing processing.

Optionally, the subcarrier position of the symbol of the first reference signal sequence at the overlapping resource element is adjusted to a target subcarrier in a preset adjacent resource region;

the method further comprises the following steps:

and receiving the first reference signal sequence transmitted by the transmitting end on the target subcarrier.

Optionally, the adjustment of the subcarrier position of the symbol of the first reference signal sequence at the overlapping resource element to the target subcarrier in the preset adjacent resource region is performed by:

Optionally, the preset adjacent resource region includes:

subcarriers having the same OFDM symbol as the overlapped resource elements; or

An OFDM symbol having the same subcarrier as the overlapped resource element;

Optionally, the position of the target subcarrier is notified by the sending end through physical layer signaling, MAC layer signaling, or higher layer signaling.

Optionally, the preset processing includes:

performing fourth phase rotation processing on a first reference signal sequence of the at least two reference signal sequences to obtain a fourth target reference signal sequence, wherein a symbol of the fourth target reference signal sequence at a first overlapping resource element is the same as a symbol of a second reference signal sequence at the first overlapping resource element in phase, the second reference signal sequence is at least one reference signal sequence of the at least two reference signals except the first reference signal sequence, and the first overlapping resource element is an overlapping resource element of a pilot pattern of the first reference signal sequence and a pilot pattern of the second reference signal sequence;

puncturing symbols of a fourth target reference signal sequence at a second overlapping resource element such that the fourth target reference signal sequence is empty at the second overlapping resource element, the second overlapping resource element being an overlapping resource element of pilot patterns of the first reference signal sequence and pilot patterns of a third reference signal sequence, the third reference signal sequence being at least one of the at least two reference signals other than the first reference signal sequence and the second reference signal sequence;

and receiving the second reference signal sequence, the third reference signal sequence and a fourth target reference signal sequence subjected to puncturing processing transmitted by a transmitting end.

Optionally, the at least two reference signal sequences include a first reference signal sequence, a second reference signal sequence and a third reference signal sequence, and there are overlapping resource elements in the pilot patterns of the first reference signal sequence and the second reference signal sequence, there are no overlapping resource elements in the pilot patterns of the third reference signal sequence and the first reference signal sequence, and there are no overlapping resources in the pilot patterns of the third reference signal sequence and the second reference signal sequence;

the preset treatment comprises the following steps:

and performing the preset processing on the first reference signal sequence.

Optionally, the at least two reference signal sequences include a first reference signal sequence and a second reference signal sequence, where the pilot pattern of the second reference signal sequence occupies at least two consecutive OFDM symbols, and there are overlapping resource elements in a pilot image of the first reference signal sequence and a part of OFDM symbols occupied by the pilot pattern of the second reference signal sequence;

the preset treatment comprises the following steps:

and performing the preset processing on the first reference signal sequence.

Optionally, the at least two reference signal sequences include a phase tracking reference signal sequence and a demodulation reference signal sequence; or

It should be noted that, this embodiment is used as an implementation of the network-side device corresponding to the embodiments shown in fig. 2 to fig. 24, and specific implementations thereof may refer to the relevant descriptions of the embodiments shown in fig. 2 to fig. 20 and achieve the same beneficial effects, and are not described herein again to avoid repeated descriptions.

Referring to fig. 28, fig. 28 is a structural diagram of another transmitting end according to an embodiment of the present invention, and as shown in fig. 8, a transmitting end 2800 includes:

a generating module 2801 configured to generate at least two reference signal sequences;

a processing module 2802, configured to perform a preset process on at least one of the at least two reference signal sequences if there are overlapping resource elements in pilot patterns of the at least two reference signal sequences, where the preset process includes at least one of a phase rotation process and a puncturing process, and the at least one reference signal sequence is a reference signal sequence of the at least two reference signal sequences where there are overlapping resource elements in pilot patterns;

a first transmitting module 2803, configured to transmit a reference signal sequence to a receiving end, where the transmitted reference signal sequence includes the reference signal sequence subjected to the preset processing, or includes the reference signal subjected to the preset processing and not subjected to the preset processing.

Optionally, the processing module 2802 is configured to perform a first phase rotation process on a first reference signal sequence of the at least two reference signal sequences to obtain a first target reference signal sequence, where a symbol of the first target reference signal sequence at the overlapping resource element has a same phase as a symbol of a second reference signal sequence at the overlapping resource element, and the second reference signal sequence is a reference signal sequence in which an overlapping resource element exists between a pilot pattern of the at least two reference signals and a pilot pattern of the first reference signal sequence;

the first transmitting module 2803 is configured to transmit the first target reference signal sequence and the second reference signal sequence to the receiving end.

Optionally, the processing module 2802 is configured to, if there are overlapping resource elements in the pilot patterns of the at least two reference signal sequences, perform second phase rotation processing on a first reference signal sequence of the at least two reference signal sequences to obtain a second target reference signal sequence, and perform third phase rotation processing on a second reference signal sequence of the at least two reference signal sequences to obtain a third target reference signal sequence, where a symbol of the second target reference signal sequence at the overlapping resource element has a same phase as a symbol of the third target reference signal sequence at the overlapping resource element, and the overlapping resource element is an overlapping resource element between a pilot pattern of the second reference signal sequence and a pilot pattern of the first reference signal sequence;

the first transmitting module 2803 is configured to transmit the second and third target reference signal sequences to the receiving end.

Optionally, the phase rotation parameters of the second phase rotation processing and the third phase rotation processing are notified to the receiving end through physical layer signaling, MAC layer signaling, or higher layer signaling.

Optionally, the processing module 2802 is configured to puncture symbols of a first reference signal sequence at the overlapping resource element if there is an overlapping resource element in pilot patterns of the at least two reference signal sequences, so that the first reference signal sequence is empty at the overlapping resource element, where the first reference signal sequence is a reference signal sequence of the at least two reference signals except for a second reference signal sequence, and the overlapping resource element is an overlapping resource element between a pilot pattern of the second reference signal sequence and a pilot pattern of the first reference signal sequence;

the first transmission module 2803 is configured to transmit the second reference signal sequence and the punctured first reference signal sequence to a receiving end.

Optionally, the processing module 2802 is configured to, if there are overlapping resource elements in the pilot patterns of the at least two reference signal sequences, adjust a subcarrier position of a symbol of the first reference signal sequence at the overlapping resource elements to a target subcarrier in a preset adjacent resource region;

as shown in fig. 29, the transmitting end 2800 further includes:

a second transmitting module 2804, configured to transmit the first reference signal sequence to the receiving end on the target subcarrier.

Optionally, the processing module 2802 is configured to, if there are overlapping resource elements in the pilot patterns of the at least two reference signal sequences, adjust the subcarrier position of the symbol of the first reference signal sequence at the overlapping resource element to a target subcarrier in a preset adjacent resource region through at least one adjustment mode of subcarrier position adjustment, frequency domain density adjustment, frequency domain interval adjustment and pilot pattern adjustment.

Optionally, the preset adjacent resource region includes:

subcarriers having the same OFDM symbol as the overlapped resource elements; or

An OFDM symbol having the same subcarrier as the overlapped resource element;

Optionally, the position of the target subcarrier is notified to the receiving end through physical layer signaling, MAC layer signaling, or higher layer signaling.

Optionally, the processing module 2802 is configured to perform a fourth phase rotation process on a first reference signal sequence of the at least two reference signal sequences to obtain a fourth target reference signal sequence if overlapping resource elements exist in pilot patterns of the at least two reference signal sequences, where a symbol of the fourth target reference signal sequence at the first overlapping resource element has a same phase as a symbol of a second reference signal sequence at the first overlapping resource element, where the second reference signal sequence is at least one of the at least two reference signals except the first reference signal sequence, and the first overlapping resource element is an overlapping resource element of pilot patterns of the first reference signal sequence and pilot patterns of the second reference signal sequence;

and puncturing symbols of a fourth target reference signal sequence at a second overlapping resource element such that the fourth target reference signal sequence is empty at the second overlapping resource element, the second overlapping resource element being an overlapping resource element of a pilot pattern of the first reference signal sequence and a pilot pattern of a third reference signal sequence, the third reference signal sequence being at least one of the at least two reference signals other than the first reference signal sequence and the second reference signal sequence;

the first transmitting module 2803 is configured to transmit the second reference signal sequence, the third reference signal sequence, and a punctured fourth target reference signal sequence to the receiving end.

the processing module 2802 is configured to perform the preset processing on the first reference signal sequence if the pilot patterns of the at least two reference signal sequences have overlapping resource elements.

It should be noted that, in this embodiment, the sending end 2800 may be a sending end of any implementation manner in the method embodiment of the present invention, and any implementation manner of the sending end in the method embodiment of the present invention may be implemented by the sending end 800 in this embodiment, and the same beneficial effects are achieved, and details are not described here.

Referring to fig. 30, fig. 30 is a structural diagram of a receiving end according to an embodiment of the present invention, and as shown in fig. 30, a receiving end 3000 includes:

a first receiving module 3001, configured to receive a reference signal sequence transmitted by a sending end if there are overlapping resource elements in pilot patterns of at least two reference signal sequences generated by the sending end, where the transmitted reference signal sequence includes a reference signal sequence subjected to preset processing, or includes a reference signal subjected to the preset processing and not subjected to the preset processing, and the preset processing includes at least one of phase rotation processing and hole punching processing.

Optionally, the preset processing includes:

the first receiving module 3001 is configured to receive the first target reference signal sequence and the second reference signal sequence transmitted by a transmitting end.

Optionally, the preset processing includes:

the first receiving module 3001 is configured to receive the second target reference signal sequence and the third target reference signal sequence transmitted by a transmitting end.

Optionally, the preset processing includes:

the first receiving module 3001 is configured to receive the second reference signal sequence transmitted by the transmitting end and the first reference signal sequence subjected to puncturing.

as shown in fig. 31, the receiving end 3000 further includes:

a second receiving module 3002, configured to receive the first reference signal sequence transmitted by the transmitting end on the target subcarrier.

Optionally, the preset adjacent resource region includes:

subcarriers having the same OFDM symbol as the overlapped resource elements; or

An OFDM symbol having the same subcarrier as the overlapped resource element;

Optionally, the preset processing includes:

puncturing symbols of a fourth target reference signal sequence at a second overlapping resource element such that the fourth target reference signal sequence is empty at the second overlapping resource element, the second overlapping resource element being an overlapping resource element of pilot patterns of the first reference signal sequence and pilot patterns of a third reference signal sequence, the third reference signal sequence being at least one of the at least two reference signals other than the first reference signal sequence and the second reference signal sequence,

the first receiving module 3001 is configured to receive the second reference signal sequence, the third reference signal sequence, and a fourth target reference signal sequence that is processed by puncturing and transmitted by a transmitting end.

the preset treatment comprises the following steps:

and performing the preset processing on the first reference signal sequence.

the preset treatment comprises the following steps:

and performing the preset processing on the first reference signal sequence.

It should be noted that, in this embodiment, the receiving end 3000 may be a receiving end of any implementation manner in the method embodiment of the present invention, and any implementation manner of the receiving end in the method embodiment of the present invention may be implemented by the receiving end 3000 in this embodiment, so as to achieve the same beneficial effects, and details are not described here.

Referring to fig. 32, fig. 32 is a structural diagram of a transmitting end applied in an embodiment of the present invention, and as shown in fig. 32, the transmitting end 3200 includes: a processor 3201, a transceiver 3202, a memory 3203, a user interface 3204, and a bus interface, wherein:

the processor 3201 is configured to read a program in the memory 3203, and perform the following processes:

generating at least two reference signal sequences;

if the pilot patterns of the at least two reference signal sequences have overlapping resource elements, performing preset processing on at least one reference signal sequence of the at least two reference signal sequences, wherein the preset processing includes at least one of phase rotation processing and hole punching processing, and the at least one reference signal sequence is a reference signal sequence of the at least two reference signal sequences in which the pilot patterns have overlapping resource elements;

and transmitting a reference signal sequence to a receiving end, wherein the transmitted reference signal sequence comprises the reference signal sequence subjected to the preset processing or comprises the reference signal subjected to the preset processing and not subjected to the preset processing.

The transceiver 3202 is used for receiving and transmitting data under the control of the processor 3201.

In fig. 32, the bus architecture may include any number of interconnected buses and bridges, with one or more processors represented by processor 3201 and various circuits of memory represented by memory 3203 being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 3202 may be a number of elements, including a transmitter and a receiver, providing a means for communicating with various other apparatus over a transmission medium. The user interface 3204 may also be an interface capable of interfacing with a desired device externally, for different user devices, including but not limited to a keypad, a display, a speaker, a microphone, a joystick, etc.

The processor 3201 is responsible for managing the bus architecture and general processing, and the memory 3203 may store data used by the processor 3201 in performing operations.

Optionally, the performing preset processing on at least one reference signal sequence of the at least two reference signal sequences includes:

the transmitting the reference signal sequence to the receiving end includes:

and transmitting the first target reference signal sequence and the second reference signal sequence to the receiving end.

Optionally, the phase rotation parameter of the first phase rotation process is notified to the receiving end through physical layer signaling, media intervention control MAC layer signaling, or high layer signaling.

the transmitting the reference signal sequence to the receiving end includes:

and transmitting the second target reference signal sequence and the third target reference signal sequence to the receiving end.

the transmitting the reference signal sequence to the receiving end includes:

and transmitting the second reference signal sequence and the first reference signal sequence after the puncturing processing to a receiving end.

processor 3201 is also configured to:

Optionally, the preset adjacent resource region includes:

subcarriers having the same orthogonal frequency division multiplexing, OFDM, symbol as the overlapped resource elements; or

An OFDM symbol having the same subcarrier as the overlapped resource element;

the transmitting the reference signal sequence to the receiving end includes:

and transmitting the second reference signal sequence, the third reference signal sequence and the fourth target reference signal sequence subjected to puncturing processing to the receiving end.

Optionally, the at least two reference signal sequences include a first reference signal sequence, a second reference signal sequence and a third reference signal sequence, and there are overlapping resource elements in the pilot patterns of the first reference signal sequence and the second reference signal sequence, there are no overlapping resource elements in the pilot patterns of the third reference signal sequence and the first reference signal sequence, and there are no overlapping resource elements in the pilot patterns of the third reference signal sequence and the second reference signal sequence;

the performing of the preset processing on at least one of the at least two reference signal sequences includes:

and performing the preset processing on the first reference signal sequence.

It should be noted that, in this embodiment, the sending end 3200 may be a sending end of any implementation manner in the method embodiment of the present invention, and any implementation manner of the sending end in the method embodiment of the present invention may be implemented by the sending end 3200 in this embodiment, and the same beneficial effects are achieved, and details are not described here.

Referring to fig. 33, fig. 33 is a structural diagram of a receiving end applied in the embodiment of the present invention, and as shown in fig. 33, the receiving end 3300 includes: at least one processor 3301, memory 3302, at least one network interface 3304, and a user interface 3303. The various components in the receiving end 3300 are coupled together by a bus system 3305. It is understood that the bus system 3305 is used to enable connected communications between these components. The bus system 3305 includes a power bus, a control bus, and a status signal bus in addition to a data bus. But for clarity of illustration the various buses are labeled in figure 33 as the bus system 3305.

The user interface 3303 may include, among other things, a display, a keyboard, or a pointing device (e.g., a mouse, track ball, touch pad, or touch screen).

It is to be appreciated that the memory 3302 in embodiments of the invention can be either volatile memory or nonvolatile memory, or can include both volatile and nonvolatile memory. The non-volatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash Memory. Volatile Memory can be Random Access Memory (RAM), which acts as external cache Memory. By way of example, but not limitation, many forms of RAM are available, such as Static random access memory (Static RAM, SRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic random access memory (Synchronous DRAM, SDRAM), Double data rate Synchronous Dynamic random access memory (ddr DRAM), Enhanced Synchronous SDRAM (ESDRAM), Synchronous link SDRAM (SLDRAM), and Direct Rambus RAM (DRRAM). The memory 3302 of the systems and methods described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

In some embodiments, memory 3302 stores the following elements, executable modules or data structures, or a subset thereof, or an expanded set thereof: an operating system 33021 and application programs 33022.

The operating system 33021 includes various system programs, such as a framework layer, a core library layer, a driver layer, etc., for implementing various basic services and processing hardware-based tasks. The application 33022 includes various applications, such as a Media Player (Media Player), a Browser (Browser), and the like, for implementing various application services. Programs that implement methods in accordance with embodiments of the present invention can be included in application programs 33022.

In the embodiment of the present invention, the processor 3301 is configured to, by calling a program or an instruction stored in the memory 3302, specifically, a program or an instruction stored in the application 33022:

The methods disclosed in the embodiments of the present invention may be implemented in the processor 3301 or implemented by the processor 3301. The processor 3301 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware or instructions in the form of software in the processor 3301. The Processor 3301 may be a general-purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf programmable Gate Array (FPGA) or other programmable logic device, discrete Gate or transistor logic device, or discrete hardware components. The various methods, steps and logic blocks disclosed in the embodiments of the present invention may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present invention may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in the memory 3302, and the processor 3301 reads the information in the memory 3302 and performs the steps of the above method in combination with the hardware thereof.

It is to be understood that the embodiments described herein may be implemented in hardware, software, firmware, middleware, microcode, or any combination thereof. For a hardware implementation, the Processing units may be implemented within one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), general purpose processors, controllers, micro-controllers, microprocessors, other electronic units configured to perform the functions described herein, or a combination thereof.

For a software implementation, the techniques described herein may be implemented with modules (e.g., procedures, functions, and so on) that perform the functions described herein. The software codes may be stored in a memory and executed by a processor. The memory may be implemented within the processor or external to the processor.

Optionally, the preset processing includes:

the processor 3331 is further configured to:

Optionally, the preset adjacent resource region includes:

subcarriers having the same OFDM symbol as the overlapped resource elements; or

An OFDM symbol having the same subcarrier as the overlapped resource element;

Optionally, the preset processing includes:

the preset treatment comprises the following steps:

and performing the preset processing on the first reference signal sequence.

the preset treatment comprises the following steps:

and performing the preset processing on the first reference signal sequence.

It should be noted that, in this embodiment, the receiving end 3300 may be a receiving end of any implementation manner in the method embodiment of the present invention, and any implementation manner of the receiving end in the method embodiment of the present invention may be implemented by the receiving end 3300 in this embodiment, so as to achieve the same beneficial effects, and details are not described here.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment of the present invention.

In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a U disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. a reference signal transmission method, is characterized in that, comprises:

generating at least two reference signal sequences;

If the pilot patterns of the at least two reference signal sequences have overlapping resource elements, perform preset processing on at least one reference signal sequence in the at least two reference signal sequences, where the preset processing includes phase rotation at least one of processing and puncturing, wherein the at least one reference signal sequence is a reference signal sequence in which the pilot patterns of the at least two reference signal sequences have overlapping resource elements;

transmitting a reference signal sequence to the receiving end, wherein the transmitted reference signal sequence includes the reference signal sequence that has undergone the preset processing, or includes the reference signal that has undergone the preset processing and has not undergone the preset processing;

Wherein, the punching process includes:

Adjusting the subcarrier position of the symbol of the first reference signal sequence at the overlapping resource element to the target subcarrier in the preset adjacent resource region, where the first reference signal sequence is the at least two reference signals In reference signal sequences other than the second reference signal sequence, the overlapping resource elements are the overlapping resource elements between the pilot pattern of the second reference signal sequence and the pilot pattern of the first reference signal sequence;

When the preset processing includes the punching processing, the method further includes:

The first reference signal sequence is transmitted to the receiver on the target subcarrier.

2. The method according to claim 1, wherein the performing preset processing on at least one reference signal sequence in the at least two reference signal sequences comprises:

A first phase rotation process is performed on a first reference signal sequence in the at least two reference signal sequences to obtain a first target reference signal sequence, the symbol of the first target reference signal sequence at the overlapping resource element is the same as the first target reference signal sequence. The phases of the symbols of the two reference signal sequences at the overlapping resource elements are the same, and the second reference signal sequence means that the pilot patterns in the at least two reference signals overlap with the pilot patterns of the first reference signal sequence. the reference signal sequence of the resource element;

The transmitting the reference signal sequence to the receiving end includes:

The first target reference signal sequence and the second reference signal sequence are transmitted to the receiving end.

3 . The method according to claim 2 , wherein the phase rotation parameter of the first phase rotation process is notified to the receiving end through physical layer signaling, media intervention control MAC layer signaling, or high layer signaling. 4 .

4. The method according to claim 1, wherein the performing preset processing on at least one reference signal sequence in the at least two reference signal sequences comprises:

Perform a second phase rotation process on a first reference signal sequence of the at least two reference signal sequences to obtain a second target reference signal sequence, and perform a second phase rotation process on the second reference signal sequence of the at least two reference signal sequences Three-phase rotation processing to obtain a third target reference signal sequence, wherein the phase of the symbol of the second target reference signal sequence at the overlapping resource element and the symbol of the third target reference signal sequence at the overlapping resource element The same, the overlapping resource element is an overlapping resource element between the pilot pattern of the second reference signal sequence and the pilot pattern of the first reference signal sequence;

The transmitting the reference signal sequence to the receiving end includes:

The second target reference signal sequence and the third target reference signal sequence are transmitted to the receiving end.

5 . The method according to claim 4 , wherein the phase rotation parameters of the second phase rotation process and the third phase rotation process are notified by physical layer signaling, MAC layer signaling or high layer signaling. 6 . the receiving end.

6 . The method according to claim 1 , wherein the subcarrier position of the symbol of the first reference signal sequence at the overlapping resource element is adjusted to a target subcarrier in a preset adjacent resource region. 7 . on, including:

Adjust the subcarrier positions of the symbols of the first reference signal sequence at the overlapping resource elements by adjusting at least one of subcarrier position adjustment, frequency domain density adjustment, frequency domain interval adjustment, and pilot pattern adjustment to the target subcarrier in the preset adjacent resource area.

7. The method according to claim 1 or 6, wherein the preset adjacent resource region comprises:

a subcarrier of the same OFDM symbol as the overlapping resource element; or

an OFDM symbol having the same subcarrier as the overlapping resource element;

Wherein, the preset adjacent resource region does not include resources occupied by the second reference signal sequence.

8. The method according to claim 1 or 6, wherein the location of the target subcarrier is notified to the receiver through physical layer signaling, MAC layer signaling or high layer signaling.

9. The method according to claim 1, wherein the performing preset processing on at least one reference signal sequence in the at least two reference signal sequences comprises:

A fourth phase rotation process is performed on the first reference signal sequence in the at least two reference signal sequences to obtain a fourth target reference signal sequence, the symbol of the fourth target reference signal sequence at the first overlapping resource element is the same as the first reference signal sequence. Symbols of two reference signal sequences at the first overlapping resource elements have the same phase, and the second reference signal sequence is at least one reference signal other than the first reference signal sequence among the at least two reference signals sequence, the first overlapping resource element is the overlapping resource element of the pilot pattern of the first reference signal sequence and the pilot pattern of the second reference signal sequence;

Perform puncturing processing on the symbols of the fourth target reference signal sequence at the second overlapping resource element, so that the fourth target reference signal sequence is empty at the second overlapping resource element, and the second overlapping resource element is The overlapping resource elements of the pilot pattern of the first reference signal sequence and the pilot pattern of the third reference signal sequence, where the third reference signal sequence is the first reference signal sequence divided by the at least two reference signals and at least one reference signal sequence other than the second reference signal sequence;

The transmitting the reference signal sequence to the receiving end includes:

The second reference signal sequence, the third reference signal sequence and the punctured fourth target reference signal sequence are transmitted to the receiving end.

10. The method of claim 1, wherein the at least two reference signal sequences comprise a first reference signal sequence, a second reference signal sequence, and a third reference signal sequence, and the first reference signal sequence There are overlapping resource elements with the pilot pattern of the second reference signal sequence, the third reference signal sequence and the pilot pattern of the first reference signal sequence have no overlapping resource elements, and the third reference signal sequence There is no overlapping resource element with the pilot pattern of the second reference signal sequence;

The performing preset processing on at least one reference signal sequence in the at least two reference signal sequences includes:

The preset processing is performed on the first reference signal sequence.

11. The method of claim 1, wherein the at least two reference signal sequences comprise a first reference signal sequence and a second reference signal sequence, wherein a pilot pattern of the second reference signal sequence occupies At least two OFDM symbols are consecutive, and the pilot image of the first reference signal sequence and the part of the OFDM symbols occupied by the pilot pattern of the second reference signal sequence have overlapping resource elements;

The preset processing is performed on the first reference signal sequence.

12. The method of any one of claims 1 to 6, wherein the at least two reference signal sequences comprise a phase tracking reference signal sequence and a demodulation reference signal sequence; or

The at least two reference signal sequences include a phase tracking reference signal sequence and a synchronization signal block.

13. A reference signal transmission method, comprising:

If the pilot patterns of at least two reference signal sequences generated by the sending end have overlapping resource elements, receive the reference signal sequence transmitted by the sending end, where the transmitted reference signal sequence includes a reference signal sequence that has undergone preset processing, or including reference signals that have undergone the preset processing and have not undergone the preset processing, and the preset processing includes at least one of phase rotation processing and puncturing processing;

Wherein, the punching process includes:

The first reference signal sequence transmitted by the transmitter is received on the target subcarrier.

14. The method of claim 13, wherein the preset processing comprises:

The reference signal sequence transmitted by the receiving and sending end includes:

The first target reference signal sequence and the second reference signal sequence transmitted by the transmitter are received.

The method according to claim 14, wherein the phase rotation parameter of the first phase rotation process is notified by the transmitting end through physical layer signaling, MAC layer signaling or high layer signaling.

16. The method of claim 13, wherein the preset processing comprises:

The second target reference signal sequence and the third target reference signal sequence transmitted by the transmitter are received.

17. The method according to claim 16, wherein the phase rotation parameters of the second phase rotation process and the third phase rotation process are determined by the transmitting end through physical layer signaling, MAC layer signaling, or higher layer signaling.

18. The method of claim 13, wherein the subcarrier positions of the symbols of the first reference signal sequence at the overlapping resource elements are adjusted to be on target subcarriers in a preset adjacent resource region. Adjusted by:

19. The method according to claim 13 or 18, wherein the preset adjacent resource region comprises:

a subcarrier having the same OFDM symbol as the overlapping resource element; or

an OFDM symbol having the same subcarrier as the overlapping resource element;

20. The method according to claim 13 or 18, wherein the location of the target subcarrier is notified by the transmitting end through physical layer signaling, MAC layer signaling or higher layer signaling.

21. The method of claim 13, wherein the preset processing comprises:

The second reference signal sequence, the third reference signal sequence and the punctured fourth target reference signal sequence transmitted by the transmitting end are received.

22. The method of claim 13, wherein the at least two reference signal sequences comprise a first reference signal sequence, a second reference signal sequence, and a third reference signal sequence, and the first reference signal sequence There are overlapping resource elements with the pilot pattern of the second reference signal sequence, the third reference signal sequence and the pilot pattern of the first reference signal sequence have no overlapping resource elements, and the third reference signal sequence There is no overlapping resource with the pilot pattern of the second reference signal sequence;

The preset processing includes:

The preset processing is performed on the first reference signal sequence.

23. The method of claim 13, wherein the at least two reference signal sequences comprise a first reference signal sequence and a second reference signal sequence, wherein a pilot pattern of the second reference signal sequence occupies At least two OFDM symbols are consecutive, and the pilot image of the first reference signal sequence and the part of the OFDM symbols occupied by the pilot pattern of the second reference signal sequence have overlapping resource elements;

The preset processing includes:

The preset processing is performed on the first reference signal sequence.

24. The method of any one of claims 13 to 18, wherein the at least two reference signal sequences comprise a phase tracking reference signal sequence and a demodulation reference signal sequence; or

25. A transmitting end, characterized in that, comprising:

a generating module for generating at least two reference signal sequences;

A processing module, configured to perform preset processing on at least one reference signal sequence in the at least two reference signal sequences if there are overlapping resource elements in the pilot patterns of the at least two reference signal sequences, wherein the preset It is assumed that the processing includes at least one of phase rotation processing and puncturing processing, and the at least one reference signal sequence is a reference signal sequence in which pilot patterns in the at least two reference signal sequences have overlapping resource elements;

a first transmission module, configured to transmit a reference signal sequence to a receiving end, wherein the transmitted reference signal sequence includes a reference signal sequence that has undergone the preset processing, or includes a reference signal sequence that has undergone the preset processing and has not undergone the preset processing. the reference signal;

Wherein, the punching process includes:

When the preset processing includes the punching processing, the sending end further includes:

A second transmission module, configured to transmit the first reference signal sequence to the receiving end on the target subcarrier.

26 . The transmitting end according to claim 25 , wherein the processing module is configured to: if there are overlapping resource elements in the pilot patterns of the at least two reference signal sequences, the at least two reference signal sequences The first reference signal sequence in the first reference signal sequence is subjected to the first phase rotation process to obtain the first target reference signal sequence, the symbol of the first target reference signal sequence at the overlapping resource element and the second reference signal sequence at the overlapping resource element The phases of the symbols at the particles are the same, and the second reference signal sequence is a reference signal sequence of resource particles in which pilot patterns in the at least two reference signals overlap with the pilot patterns of the first reference signal sequence;

The first transmission module is configured to transmit the first target reference signal sequence and the second reference signal sequence to the receiving end.

27 . The transmitting end according to claim 26 , wherein the phase rotation parameters of the first phase rotation process are notified to the receiving end through physical layer signaling, media intervention control MAC layer signaling, or higher layer signaling. 28 .

28 . The transmitting end according to claim 25 , wherein the processing module is configured to: if there are overlapping resource elements in the pilot patterns of the at least two reference signal sequences, the at least two reference signal sequences The second phase rotation processing is performed on the first reference signal sequence in the reference signal sequence to obtain the second target reference signal sequence, and the third phase rotation processing is performed on the second reference signal sequence in the at least two reference signal sequences to obtain the third target reference signal sequence, wherein the symbols of the second target reference signal sequence at the overlapping resource elements are in the same phase as the symbols of the third target reference signal sequence at the overlapping resource elements, and the overlapping resource elements are all overlapping resource elements between the pilot pattern of the second reference signal sequence and the pilot pattern of the first reference signal sequence;

The first transmission module is configured to transmit the second target reference signal sequence and the third target reference signal sequence to the receiving end.

29. The transmitting end according to claim 28, wherein the phase rotation parameters of the second phase rotation process and the third phase rotation process are notified through physical layer signaling, MAC layer signaling, or higher layer signaling the receiving end.

30 . The transmitter according to claim 25 , wherein the processing module is configured to adjust the subcarrier position, frequency domain density, and At least one of adjustment, frequency domain spacing adjustment, and pilot pattern adjustment, adjusting the subcarrier positions of the symbols of the first reference signal sequence at the overlapping resource elements to the target in the preset adjacent resource area on the subcarrier.

31. The transmitter according to claim 25 or 30, wherein the preset adjacent resource region comprises:

an OFDM symbol having the same subcarrier as the overlapping resource element;

32. The transmitting end according to claim 25 or 30, wherein the location of the target subcarrier is notified to the receiving end through physical layer signaling, MAC layer signaling or high layer signaling.

33 . The transmitting end according to claim 25 , wherein the processing module is configured to: if there are overlapping resource elements in pilot patterns of the at least two reference signal sequences, the at least two reference signal sequences The fourth phase rotation process is performed on the first reference signal sequence in , to obtain a fourth target reference signal sequence, the symbol of the fourth target reference signal sequence at the first overlapping resource element and the second reference signal sequence are in the first The symbols at the overlapping resource elements have the same phase, the second reference signal sequence is at least one reference signal sequence other than the first reference signal sequence among the at least two reference signals, and the first overlapping resource element is an overlapping resource element of the pilot pattern of the first reference signal sequence and the pilot pattern of the second reference signal sequence;

and puncturing the symbols of the fourth target reference signal sequence at the second overlapping resource element, so that the fourth target reference signal sequence is empty at the second overlapping resource element, and the second overlapping resource element is the overlapping resource element of the pilot pattern of the first reference signal sequence and the pilot pattern of the third reference signal sequence, and the third reference signal sequence is the first reference signal divided by the at least two reference signals sequence and at least one reference signal sequence other than the second reference signal sequence;

The first transmission module is configured to transmit the second reference signal sequence, the third reference signal sequence and the punctured fourth target reference signal sequence to the receiving end.

34. The transmitter according to claim 25, wherein the at least two reference signal sequences comprise a first reference signal sequence, a second reference signal sequence and a third reference signal sequence, and the first reference signal sequence sequence and the pilot pattern of the second reference signal sequence have overlapping resource elements, the third reference signal sequence and the pilot pattern of the first reference signal sequence do not have overlapping resource elements, and the third reference signal sequence The sequence and the pilot pattern of the second reference signal sequence do not have overlapping resources;

The processing module is configured to perform the preset processing on the first reference signal sequence if the pilot patterns of the at least two reference signal sequences have overlapping resource elements.

35. The transmitter of claim 25, wherein the at least two reference signal sequences comprise a first reference signal sequence and a second reference signal sequence, wherein a pilot pattern of the second reference signal sequence Occupying at least two consecutive OFDM symbols, and the pilot image of the first reference signal sequence and the part of the OFDM symbols occupied by the pilot pattern of the second reference signal sequence have overlapping resource elements;

36. The transmitter according to any one of claims 25 to 30, wherein the at least two reference signal sequences comprise a phase tracking reference signal sequence and a demodulation reference signal sequence; or

37. A receiver, characterized in that, comprising:

a first receiving module, configured to receive a reference signal sequence transmitted by the transmitting end if the pilot patterns of at least two reference signal sequences generated by the transmitting end have overlapping resource elements, wherein the transmitted reference signal sequence includes a preset reference signal sequence The processed reference signal sequence, or includes the reference signals that have undergone the preset processing and have not undergone the preset processing, and the preset processing includes at least one of phase rotation processing and puncturing processing;

Wherein, the punching process includes:

When the preset processing includes the punching processing, the receiving end further includes:

A second receiving module, configured to receive, on the target subcarrier, the first reference signal sequence transmitted by the transmitting end.

38. The receiver according to claim 37, wherein the preset processing comprises:

The first receiving module is configured to receive the first target reference signal sequence and the second reference signal sequence transmitted by the transmitter.

39. The receiving end according to claim 38, wherein the phase rotation parameter of the first phase rotation process is notified by the transmitting end through physical layer signaling, MAC layer signaling or higher layer signaling.

40. The receiver of claim 37, wherein the preset processing comprises:

The first receiving module is configured to receive the second target reference signal sequence and the third target reference signal sequence transmitted by the transmitter.

41. The receiver according to claim 40, wherein the phase rotation parameters of the second phase rotation process and the third phase rotation process are determined by the transmitter through physical layer signaling and MAC layer signaling Or higher layer signaling notification.

42. The receiver according to claim 37, wherein the subcarrier positions of the symbols of the first reference signal sequence at the overlapping resource elements are adjusted to the target subcarriers in the preset adjacent resource region is adjusted as follows:

43. The receiver according to claim 37 or 42, wherein the preset adjacent resource region comprises:

an OFDM symbol having the same subcarrier as the overlapping resource element;

44. The receiving end according to claim 37 or 42, wherein the location of the target subcarrier is notified by the transmitting end through physical layer signaling, MAC layer signaling or higher layer signaling.

45. The receiver of claim 37, wherein the preset processing comprises:

Perform puncturing processing on the symbols of the fourth target reference signal sequence at the second overlapping resource element, so that the fourth target reference signal sequence is empty at the second overlapping resource element, and the second overlapping resource element is The overlapping resource elements of the pilot pattern of the first reference signal sequence and the pilot pattern of the third reference signal sequence, where the third reference signal sequence is the first reference signal sequence divided by the at least two reference signals and at least one reference signal sequence other than the second reference signal sequence,

The first receiving module is configured to receive the second reference signal sequence, the third reference signal sequence and the punctured fourth target reference signal sequence transmitted by the transmitter.

46. The receiver of claim 37, wherein the at least two reference signal sequences comprise a first reference signal sequence, a second reference signal sequence and a third reference signal sequence, and the first reference signal sequence sequence and the pilot pattern of the second reference signal sequence have overlapping resource elements, the third reference signal sequence and the pilot pattern of the first reference signal sequence do not have overlapping resource elements, and the third reference signal sequence The sequence and the pilot pattern of the second reference signal sequence do not have overlapping resources;

The preset processing includes:

The preset processing is performed on the first reference signal sequence.

47. The receiver of claim 37, wherein the at least two reference signal sequences comprise a first reference signal sequence and a second reference signal sequence, wherein a pilot pattern of the second reference signal sequence Occupying at least two consecutive OFDM symbols, and the pilot image of the first reference signal sequence and the part of the OFDM symbols occupied by the pilot pattern of the second reference signal sequence have overlapping resource elements;

The preset processing includes:

The preset processing is performed on the first reference signal sequence.

48. The receiver according to any one of claims 37 to 42, wherein the at least two reference signal sequences comprise a phase tracking reference signal sequence and a demodulation reference signal sequence; or

49. A reference signal transmission system, characterized by comprising the transmitter according to any one of claims 25 to 36 and the receiver according to any one of claims 37 to 48.