CN111435928B

CN111435928B - Transmission method and terminal

Info

Publication number: CN111435928B
Application number: CN201910208232.9A
Authority: CN
Inventors: 贺子健; 孙晓东; 王勇
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2019-03-19
Filing date: 2019-03-19
Publication date: 2021-12-21
Anticipated expiration: 2039-03-19
Also published as: WO2020186982A1; CN111435928A

Abstract

The invention provides a transmission method and a terminal, wherein the method comprises the following steps: transmitting a reference signal by adopting at least one reference signal port in the N reference signal ports; the reference signal is generated by modulating a reference signal sequence by at least one of the following modulation modes: the modulation method comprises the following steps of first type modulation, first orthogonal superposition code modulation, discrete Fourier transform modulation, frequency domain filtering, second orthogonal superposition code modulation and inverse fast Fourier transform modulation, wherein N is an integer larger than 1. The PAPR of the reference signal transmitted by the invention is lower, thereby improving the power amplification efficiency of the signal transmitting terminal, reducing the power consumption, improving the demodulation performance of the signal receiving terminal and improving the uplink coverage.

Description

Transmission method and terminal

Technical Field

The embodiment of the invention relates to the technical field of communication, in particular to a transmission method and a terminal.

Background

In an existing New air interface (NR) mobile communication system, when a Physical Uplink Shared Channel (PUSCH) or a Physical Uplink Control Channel (PUCCH) uses transmission precoding (also referred to as DFT-s-OFDM waveform), a Demodulation Reference Signal (DMRS) sequence is generated using a low Peak-to-Average Power Ratio (PAPR) sequence (also referred to as ZC sequence), which results in a high PAPR of a DMRS symbol relative to a data symbol and poor Uplink coverage performance.

Disclosure of Invention

The embodiment of the invention provides a transmission method and a terminal, which aim to solve the problem that the PAPR of a DMRS symbol is high relative to the PAPR of a data symbol and the uplink coverage performance is poor due to the fact that the existing DMRS sequence is generated by adopting a ZC sequence.

In order to solve the problems, the invention is realized as follows:

in a first aspect, an embodiment of the present invention provides a transmission method, which is applied to a terminal, and the method includes:

transmitting a reference signal by adopting at least one reference signal port in the N reference signal ports; the reference signal is generated by modulating a reference signal sequence by at least one of the following modulation modes:

the modulation method comprises the following steps of first type modulation, first orthogonal superposition code modulation, discrete Fourier transform modulation, frequency domain filtering, second orthogonal superposition code modulation and inverse fast Fourier transform modulation, wherein N is an integer larger than 1.

In a second aspect, an embodiment of the present invention further provides a terminal, where the terminal includes:

a transmission module, configured to transmit a reference signal through at least one of N reference signal ports; the reference signal is generated by modulating a reference signal sequence by at least one of the following modulation modes:

In a third aspect, an embodiment of the present invention further provides a terminal, where the terminal includes a processor, a memory, and a computer program stored on the memory and executable on the processor, and when the computer program is executed by the processor, the steps of the transmission method described above are implemented.

In a fourth aspect, the embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps of the transmission method as described above.

In the embodiment of the invention, a terminal adopts at least one reference signal port in N reference signal ports to transmit a reference signal; the reference signal is generated by modulating a reference signal sequence by at least one of the following modulation modes: the modulation method comprises the following steps of first type modulation, first orthogonal superposition code modulation, discrete Fourier transform modulation, frequency domain filtering, second orthogonal superposition code modulation and inverse fast Fourier transform modulation, wherein N is an integer larger than 1. Compared with the prior art, the PAPR of the reference signal transmitted by the embodiment of the invention is lower, so that the power amplification efficiency of the signal transmitting end can be improved, the power consumption can be reduced, the demodulation performance of the signal receiving end can be improved, and the uplink coverage 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 flowchart of a transmission method provided in an embodiment of the present invention;

FIG. 2 is a diagram of a reference signal sequence according to an embodiment of the present invention;

FIG. 3 is a second schematic diagram of a reference signal sequence according to an embodiment of the present invention;

FIG. 4 is a third exemplary diagram of a reference signal sequence according to an embodiment of the present invention;

FIG. 5 is a fourth exemplary diagram of a reference signal sequence according to an embodiment of the present invention;

FIG. 6 is a fifth exemplary diagram of a reference signal sequence according to an embodiment of the present invention;

FIG. 7 is a sixth schematic diagram of a reference signal sequence according to an embodiment of the present invention;

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

FIG. 9 is an eighth schematic diagram of a reference signal sequence provided by an embodiment of the present invention;

FIG. 10 is a ninth illustration of a reference signal sequence provided by an embodiment of the present invention;

FIG. 11 is a block diagram of a reference signal sequence according to an embodiment of the present invention;

fig. 12 is one of the structural diagrams of a terminal provided in the embodiment of the present invention;

fig. 13 is a second structural diagram of a terminal 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.

The terms "first," "second," and the like in this application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

For convenience of understanding, some contents related to the embodiments of the present invention are explained below:

in the NR system, when the PUSCH employs transmission precoding (also referred to as DFT-s-OFDM waveform), a DMRS sequence is generated using a low PAPR sequence (also referred to as ZC sequence) as follows:

wherein n represents a DMRS symbol identity; δ is 1;

representing the number of subcarriers occupied by the PUSCH; α is 0; u and v represent the group hopping and sequence hopping values, respectively.

When the PUCCH employs transmission precoding, DMRS sequences are generated using low PAPR sequences, as follows:

wherein the content of the first and second substances,

indicating the number of subcarriers occupied by the PUCCH.

When the DMRS sequence length is 6, 12, 18, 24,

the generation is as follows:

wherein the content of the first and second substances,

generated by computer search, and is a PI/4PSK sequence.

When the DMRS sequence length is 30 a,

the generation is as follows:

when the DMRS sequence length is equal to or greater than 30,

the generation is as follows:

wherein the content of the first and second substances,

M_ZCis the DMRS sequence length; n is a radical of_ZCIs less than M_ZCThe maximum prime number of.

In the embodiment of the present invention, the reference signal may include a physical channel DMRS and a channel state information acquisition reference signal.

Specifically, the physical channel DMRS may include at least: PUSCH DMRS, Physical Downlink Shared Channel (PDSCH) DMRS, Physical Sidelink Shared Channel (pscch) DMRS, PUCCH DMRS, Physical Downlink Control Channel (PDCCH) DMRS, Physical Sidelink Control Channel (pscch) PSCCH DMRS, and Physical Broadcast Channel (Physical Broadcast Channel) PBCH DMRS.

The channel state information acquisition reference signal may include at least: sounding Reference Signal (SRS), Channel State Information Reference Signal (CSI-RS).

The following describes a transmission method according to an embodiment of the present invention.

Referring to fig. 1, fig. 1 is a flowchart of a transmission method according to an embodiment of the present invention. The transmission method of the embodiment of the invention can be applied to the terminal. In a specific implementation, the terminal 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), a Wearable Device (Wearable Device), or a vehicle-mounted Device.

As shown in fig. 1, the transmission method may include the steps of:

step 101, transmitting a reference signal by adopting at least one reference signal port in N reference signal ports; the reference signal is generated by modulating a reference signal sequence by at least one of the following modulation modes: the modulation method comprises the following steps of first type modulation, first orthogonal superposition code modulation, discrete Fourier transform modulation, frequency domain filtering, second orthogonal superposition code modulation and inverse fast Fourier transform modulation, wherein N is an integer larger than 1.

It should be understood that the reference signal port, the reference signal transmitted by the reference signal port, and the reference signal sequence from which the reference signal is generated are associated. Specifically, the reference signal transmitted by the reference signal port is generated by the reference signal sequence corresponding to the reference signal port.

Therefore, it can be understood that any one of the reference signals is generated by modulating a reference signal sequence corresponding to a reference signal port transmitting the reference signal.

Wherein the first type of modulation may be: 8 Phase Shift Keying (PSK) modulation or pi/2 Binary Phase Shift Keying (BPSK) modulation.

In particular implementations, the particular manifestation of the first type of modulation may be determined based on the number of subcarriers occupied by the target reference signal. Illustratively, under the condition that the number of subcarriers occupied by the target reference signal is less than 12, the specific expression form of the first type modulation may be 8PSK modulation, and the target reference signal may adopt 8PSK modulation; under the condition that the number of subcarriers occupied by the target reference signal is greater than or equal to 12, the specific expression form of the first type modulation can be pi/2 BPSK modulation, and the target reference signal adopts pi/2 BPSK modulation.

The first orthogonal cover code may be embodied as a time domain orthogonal cover code. Further, the first orthogonal cover code may specifically include at least one of a time-domain block orthogonal cover code and a time-domain symbol orthogonal cover code.

The second orthogonal cover code can be represented as a time domain and frequency domain orthogonal cover code. Further, the second orthogonal cover code may include at least one of a time domain orthogonal cover code and a frequency domain orthogonal cover code.

It should be noted that, when the reference signal sequence is modulated by a plurality of modulation modes, the modulation order of the reference signal sequence modulated by the plurality of modulation modes may be the same as the above arrangement order of the modulation modes. That is to say, the reference signal is generated by modulating a reference signal sequence by at least one of the following modulation modes in sequence: a first type of modulation; modulating a first orthogonal superposition code; discrete Fourier transform modulation; filtering in a frequency domain; modulating a second orthogonal superposition code; inverse fast fourier transform modulation. Such as: assuming that the target reference signal is generated by the reference signal sequence through the first type modulation and the second orthogonal superposition code modulation, the reference signal sequence is generated through the first type modulation and then the second orthogonal superposition code modulation.

In addition, in the embodiment of the present invention, the reference signal sequence may be generated by at least one of the following characteristics:

the mean value of the shift autocorrelation among the reference signal modulation symbols is less than 1;

the PAPR of the reference signal symbol corresponding to the time domain symbol after inverse Fourier transform is less than 5 decibels (dB);

the cross correlation mean value between modulation symbols of the reference signal is less than 1;

the reference signal sequence demodulation performance is best.

In specific implementation, the reference signal is used for channel demodulation, and therefore, the demodulation performance of the reference signal sequence can be measured by the block error rate of the traffic channel. Further, the demodulation performance of the reference signal sequence is inversely related to the block error rate of the traffic channel, i.e. the better the demodulation performance of the reference signal sequence, the lower the block error rate of the channel. Such as: when the Signal-to-Noise and Interference Ratio (SINR) is-6 decibels (dB), the Block Error Rate (BLER) of PUSCH is less than 10%.

The reference signal modulation symbol is generated by modulating a reference signal sequence by a first orthogonal superposition code; the reference signal symbols are sequentially subjected to first type modulation by a reference signal sequence; modulating a first orthogonal superposition code; discrete Fourier transform modulation; filtering in a frequency domain; and modulating and generating a second orthogonal superposition code.

The reference signal sequence generated by the characteristics is used for generating the reference signal, the PAPR of the reference signal can be reduced, the power amplification efficiency of a signal transmitting end can be improved, the power consumption can be reduced, the demodulation performance of a signal receiving end can be improved, and the uplink coverage can be improved.

In the embodiment of the present invention, further, reference signal sequences corresponding to different reference signal ports of the N reference signal ports are different.

Here, it should be noted that, in the embodiment of the present invention, reference signal sequences corresponding to different reference signal ports occupying the same subcarrier are different, and reference signal sequences corresponding to different reference signal ports occupying different subcarriers are different. That is, whether the subcarriers occupied by different reference signal ports are the same or different, their respective corresponding reference signal sequences are always different.

In this way, at least one of the N reference signal ports is adopted to transmit the reference signal, and the reference signal sequences corresponding to different subcarriers are obtained by computer search based on the characteristics, so that the interference among users can be reduced.

In the specific embodiment of the present invention, when a terminal transmits a reference signal through a certain reference signal port, a reference signal transmitted through the reference signal port is generated through a reference signal sequence corresponding to the reference signal port. Therefore, based on the difference of the reference signal sequences corresponding to the different reference signal ports, it can be understood that the reference signals transmitted by the different reference signal ports are generated by the different reference signal sequences.

In the embodiment of the present invention, the subcarriers corresponding to different reference signal ports may be the same or different.

It should be understood that, in the embodiment of the present invention, the subcarriers corresponding to the reference signal ports may be understood as: reference signal port occupied subcarriers.

In addition, the subcarriers corresponding to different reference signal ports are different, and the subcarriers mapped by the reference signals transmitted by different reference signal ports are different.

Illustratively, when the reference signal employs a comb pattern (K), the nth reference signal is mapped to the nth set of subcarriers (e.g., N + K, N +2K, …), and the terminal transmits based on at least one of the N reference signals.

Such as: comb2(K ═ 2) DMRS, a first reference signal port transmits a first reference signal, a second reference signal port transmits a second reference signal, and subcarriers corresponding to the first reference signal port and the second reference signal port are different, then the first reference signal may be mapped to a first group of subcarriers (e.g.: 0, 2, 4, …), the second reference signal may be mapped to a second group of subcarriers (e.g.: 1, 3, 5, …), and the terminal transmits based on at least one of the first reference signal and the second reference signal. As can be seen, the first reference signal and the second reference signal may be mapped to different subcarriers.

The subcarriers corresponding to different reference signal ports are the same, and then the subcarriers mapped by the reference signals transmitted by different reference signal ports are the same.

Illustratively, when the reference signal employs a comb pattern (K), the nth reference signal is mapped to the mth group of subcarriers (e.g., m + K, m +2K, …), and the terminal transmits based on at least one of the N reference signals.

Such as: comb2(K ═ 2) DMRS, a first reference signal port transmits a first reference signal, a second reference signal port transmits a second reference signal, and subcarriers corresponding to the first reference signal port and the second reference signal port are different, then the first reference signal is mapped to a first set of subcarriers (e.g., 0, 2, 4, …), the second reference signal is mapped to a first set of subcarriers (e.g., 0, 2, 4, …), and the terminal transmits based on at least one of the first reference signal and the second reference signal. As can be seen, the first reference signal and the second reference signal may be mapped to the same subcarrier.

In the embodiment of the present invention, whether the subcarriers corresponding to different reference signal ports are the same or not may affect whether the modulation parameters (e.g., the first orthogonal superposition code, the frequency domain filter coefficient, and the second orthogonal superposition code) of the reference signals corresponding to different reference signal ports are the same, which is specifically described as follows:

optionally, under the condition that the subcarriers corresponding to different reference signal ports of the N reference signal ports are different, the first orthogonal superposition codes of the reference signals corresponding to the different reference signal ports are the same or different. In this case, the frequency domain filter coefficients of the reference signals corresponding to the different reference signal ports are different.

Under the condition that the subcarriers corresponding to different reference signal ports of the N reference signal ports are the same, first orthogonal superposition codes of the reference signals corresponding to the different reference signal ports are the same, and second orthogonal superposition codes of the reference signals corresponding to the different reference signal ports are different. In this case, the frequency domain filter coefficients of the reference signals corresponding to the different reference signal ports are the same.

It should be understood that, in the embodiment of the present invention, the reference signal corresponding to the reference signal port may be understood as: reference signal port for transmitting reference signal.

For convenience of understanding, the transmitting a reference signal by using at least one reference signal port of the N reference signal ports may be further defined as:

the method comprises the steps of adopting a first reference signal port to transmit a first reference signal, adopting a second reference signal port to transmit a second reference signal, wherein the first reference signal and the second reference signal are comb-shaped reference signals.

It should be understood that Comb2 reference signal is only used as an example for illustration, and the concrete representation of the transmitted reference signal is not limited thereby.

For a scenario in which subcarriers corresponding to the first reference signal port and the second reference signal port are different, the following schemes may be adopted:

in the first scheme, the number of subcarriers occupied by the target reference signal is 6, and the reference signal sequence corresponding to the target reference signal port includes at least one of fig. 2.

Wherein the target reference signal is the first reference signal or the second reference signal. Specifically, in the case that a target reference signal is the first reference signal, the target reference signal port is the first reference signal port; or, in the case that the target reference signal is the second reference signal, the target reference signal port is the second reference signal port.

Preferably, the reference signal Sequence corresponding to the first reference signal port may include at least one of Computer Generated Sequences (CGS) corresponding to index numbers 0 to 19 in fig. 2. The reference signal sequence corresponding to the second reference signal port may include at least one of the CGS corresponding to

index numbers

0 and 1 and index numbers 20 to 29 in fig. 2.

In the second scheme, the number of subcarriers occupied by the first reference signal and the second reference signal is 6, the first orthogonal superposition codes of the second reference signal are all [ +1, +1, +1, +1, and 1], and the reference signal sequence corresponding to the second reference signal port may include at least one of fig. 3.

Preferably, the reference signal sequence corresponding to the second reference signal port may include at least one of CGS corresponding to index numbers 0 to 12 in fig. 3.

And in a third scheme, the first orthogonal superposition codes of the reference signals corresponding to the first reference signal port and the second reference signal port are different, wherein the first orthogonal superposition codes are code block level orthogonal superposition codes, namely time domain block orthogonal superposition codes.

Specifically, the first reference signal sequence may be:

{[S₁₁，S₁₂，S₁₃，S₁₄，S₁₅，S₁₆]，[S₁₁，S₁₂，S₁₃，S₁₄，S₁₅，S₁₆]}；

the second reference signal sequence is:

{[S₂₁，S₂₂，S₂₃，S₂₄，S₂₅，S₂₆]，[S₂₁，S₂₂，S₂₃，S₂₄，S₂₅，S₂₆]}；

the time domain block orthogonal cover code of the first reference signal may be:

{[+1，+1，+1，+1，+1，+1]，[+1，+1，+1，+1，+1，+1]}；

the time domain block orthogonal cover code of the second reference signal may be:

{[+1，+1，+1，+1，+1，+1]，[-1，-1，-1，-1，-1，-1]}。

further, if the number of subcarriers occupied by the first reference signal and the second reference signal is 6, the reference signal sequence corresponding to the first reference signal port or the second reference signal port may include at least one of fig. 4.

Preferably, the reference signal sequence corresponding to the first reference signal port may include at least one of CGSs corresponding to index numbers 0 to 18 in fig. 4. The reference signal sequence corresponding to the second reference signal port may include at least one of CGS corresponding to index numbers 19 to 29 in fig. 4.

Scheme four, in case that the number of subcarriers occupied by the first reference signal and the second reference signal is 6, and the first orthogonal superposition code of the reference signal corresponding to the second reference signal port is { [ +1, +1, +1, +1, +1, +1], [ -1, -1, -1, -1] }, the reference signal sequence corresponding to the second reference signal port includes at least one of fig. 5.

In a fifth scenario, the number of subcarriers occupied by the first reference signal and the second reference signal is 6, and the first orthogonal superposition code of the reference signal corresponding to the first reference signal port is [ +1, +1, +1, and 1], and in a case where the first orthogonal superposition code of the reference signal corresponding to the second reference signal port is [ +1, -1, +1, -1, +1, -1], the reference signal sequence corresponding to the first reference signal port or the second reference signal port includes at least one of fig. 6.

Preferably, the reference signal sequence corresponding to the first reference signal port may include at least one of CGSs corresponding to index numbers 0 to 19 in fig. 6. The reference signal sequence corresponding to the second reference signal port may include at least one of the CGS corresponding to index number 0 and index numbers 20 to 29 in fig. 6.

And in a sixth scheme, the first orthogonal superposition codes of the reference signals corresponding to the first reference signal port and the second reference signal port are different, wherein the first orthogonal superposition code is a symbol-level orthogonal superposition code, namely a time domain symbol orthogonal superposition code.

The first reference signal sequence may be: [ S ]₁₁，S₁₂，S₁₃，S₁₄，S₁₅，S₁₆]；

Second reference signal sequenceCan be as follows: [ S ]₂₁，S₂₂，S₂₃，S₂₄，S₂₅，S₂₆]；

The time domain symbol orthogonal cover code of the first reference signal may be: [ +1, +1, +1, +1, +1, +1 ];

the time domain symbol orthogonal cover code of the second reference signal may be: [+1, -1, +1, -1, +1, -1].

Further, if the number of subcarriers occupied by the first reference signal and the second reference signal is 6, the reference signal sequence corresponding to the second reference signal port may include at least one of fig. 7.

Preferably, the reference signal sequence corresponding to the second reference signal port may include at least one of CGS corresponding to index numbers 0 to 12 in fig. 7.

In addition, in this scenario, the frequency domain filter coefficients of the reference signals corresponding to different reference signal ports are different. Take Comb2DMRS with Resource number of 1 Physical Resource Block (PRB) as an example:

the frequency domain filter coefficients of the first reference signal may be:

[0.4400，0.7200，1.2800，1.5600，1.2800，0.7200]；

the frequency domain filter coefficients of the second reference signal may be:

[0.5150，1.0000，1.4850，1.4850，1.0000，0.5150]。

for a scenario in which the subcarriers corresponding to the first reference signal port and the second reference signal port are the same, the following scheme may be included:

in the seventh aspect, the second orthogonal superposition code of the reference signal corresponding to the first reference signal port is [ +1, +1, +1, +1], and the first orthogonal superposition code of the reference signal corresponding to the second reference signal port is [ +1, -1, +1, -1, +1, -1 ].

Further, if the number of subcarriers occupied by the first reference signal and the second reference signal is 6, the reference signal sequence corresponding to the second reference signal port may include at least one of fig. 8.

In the eighth scheme, the second orthogonal superposition code of the reference signal corresponding to the first reference signal port is [ +1, +1, +1, +1, +1, +1, +1, +1, +1, +1], and the first orthogonal superposition code of the reference signal corresponding to the second reference signal port is [ +1, -1, +1, -1, +1, -1, +1, -1, +1, -1.

Further, if the number of subcarriers occupied by the first reference signal and the second reference signal is 12, the reference signal sequence corresponding to the second reference signal port may include at least one of fig. 9.

In the ninth embodiment, the second orthogonal superposition code of the reference signal corresponding to the first reference signal port is [ +1, +1, +1, +1, +1, +1, +1, +1, +1, +1, +1, +1, +1, +1, +1, +1, and the first orthogonal superposition code of the reference signal corresponding to the second reference signal port is [ +1, -1, +1, -1, +1, -1.

Further, if the number of subcarriers occupied by the first reference signal and the second reference signal is 18, the reference signal sequence corresponding to the second reference signal port may include at least one of fig. 10.

In scenario ten, the second orthogonal superposition code of the reference signal corresponding to the first reference signal port is [ +1, +1, +1, +1, +1, +1, +1, +1, +1, +1, +1, +1, +1, +1, +1, +1, +1, +1, and the first orthogonal superposition code of the reference signal corresponding to the second reference signal port is [ +1, -1, +1, -1, +1, -1, +1, -1, +1, +1, +1, -1, +1, -1, +1, -1.

Further, if the number of subcarriers occupied by the first reference signal and the second reference signal is 24, the reference signal sequence corresponding to the second reference signal port may include at least one of fig. 11.

It should be understood that, in the embodiment of the present invention, when the number of the reference signal sequences corresponding to the reference signal port is greater than 1, and the terminal transmits a reference signal using the reference signal port, the reference signal may be generated by modulating any one of the reference signal sequences corresponding to the reference signal port. Further, the reference signal sequence for modulating the reference signal may be specified by the network side device, but is not limited thereto.

For example, assume that the first reference signal port corresponds to 3 reference signal sequences, which are: reference signal sequence a, reference signal sequence b and reference signal sequence c. If the network side device specifies that the reference signal transmitted by the first reference signal port is generated through the reference signal sequence b, the terminal transmits the first reference signal through the first reference signal port and can generate the first reference signal through modulation of the reference signal sequence b.

It should be noted that, various optional implementations described in the embodiments of the present invention may be implemented in combination with each other or implemented separately, and the embodiments of the present invention are not limited thereto.

Exemplary, embodiments of the present invention may include the following embodiments:

implementation mode one

And when the network side indicates that the PUSCH of the UE is transmitted by adopting DFT-s-OFDM waveform, the number of subcarriers occupied by the DMRS of the PUSCH is 6, the modulation mode is 8BPSK, the number of resources is 1 PRB, and the PUSCH is transmitted by adopting a

port

2 or 6, the DMRS of the PUSCH can be generated based on the first scheme.

The time domain orthogonal superposition code is [ +1, +1, +1, +1, +1, +1 ].

DMRS ports

0, 4 employ first frequency domain filter coefficients,

DMRS ports

2, 6 employ second frequency domain filter coefficients, and the first frequency domain filter coefficients are different from the second frequency domain filter coefficients.

In the first scheme, orthogonal superposition code modulation has no influence on the autocorrelation and cross-correlation characteristics of sequences.

Second embodiment

And when the network side indicates that the PUSCH of the UE is transmitted by adopting DFT-s-OFDM waveform, when the number of subcarriers occupied by the DMRS of the PUSCH is 6, the modulation mode is 8BPSK, the number of resources is 1 PRB, and when the

port

2 or 6 is adopted for transmission, the DMRS of the PUSCH can be generated based on the second scheme.

In the second scheme, orthogonal superposition code modulation has influence on the autocorrelation and cross-correlation characteristics of the sequence, time domain repeated transmission is carried out, a time domain block orthogonal superposition code is superposed, the frequency domain odd number or even number subcarrier elements are 0, and the realization is easy.

Third embodiment

port

2 or 6 is adopted for transmission, the DMRS of the PUSCH can be generated based on the third scheme.

In the third scheme, time-domain orthogonal cover code modulation has an influence on the autocorrelation and cross-correlation characteristics of sequences.

The embodiment of the invention has at least the following beneficial effects:

the invention can solve the problem that the PAPR of the DMRS symbol is higher than that of the data symbol when the PUSCH or PUCCH adopts transmission precoding, can improve the power amplification efficiency of a transmitting end, reduce the power consumption, improve the demodulation performance of a receiving end and improve the uplink coverage. Meanwhile, the scheme also supports uplink multi-user transmission.

Referring to fig. 12, fig. 12 is a diagram illustrating a structure of a terminal according to an embodiment of the present invention. As shown in fig. 12, the terminal 1200 includes:

a transmission module 1201, configured to transmit a reference signal through at least one reference signal port of the N reference signal ports; the reference signal is generated by modulating a reference signal sequence by at least one of the following modulation modes:

Optionally, the reference signal sequences corresponding to different reference signal ports are different.

Optionally:

under the condition that the subcarriers corresponding to different reference signal ports of the N reference signal ports are different, the first orthogonal superposition codes of the reference signals corresponding to the different reference signal ports are the same or different;

or the like, or, alternatively,

under the condition that the subcarriers corresponding to different reference signal ports of the N reference signal ports are the same, first orthogonal superposition codes of the reference signals corresponding to the different reference signal ports are the same, and second orthogonal superposition codes of the reference signals corresponding to the different reference signal ports are different.

Optionally, the transmission module 1201 is specifically configured to:

Optionally, when the subcarriers corresponding to the first reference signal port and the second reference signal port are different and the number of subcarriers occupied by the target reference signal is 6, the reference signal sequence corresponding to the target reference signal port includes at least one item in fig. 2; wherein the target reference signal port is the first reference signal port if the target reference signal is the first reference signal; or, in the case that the target reference signal is the second reference signal, the target reference signal port is the second reference signal port.

Optionally, when subcarriers corresponding to the first reference signal port and the second reference signal port are different, the number of subcarriers occupied by the second reference signal is 6, and the first orthogonal superposition code of the reference signal corresponding to the second reference signal port is [ +1, +1, +1, +1, and +1], the reference signal sequence corresponding to the second reference signal port includes at least one item in fig. 3.

Optionally, the subcarriers corresponding to the first reference signal port and the second reference signal port are different, the number of subcarriers occupied by the first reference signal and the second reference signal is 6, and the first orthogonal superposition code of the reference signal corresponding to the first reference signal port is { [ +1, +1, +1, +1], [ +1, +1, +1, +1, +1, +1] }, in the case that the first orthogonal superposition code of the reference signal corresponding to the second reference signal port is { [ +1, +1, +1, +1, +1, +1], [ -1, -1, -1, -1, -1] }, the reference signal sequence corresponding to the first reference signal port or the second reference signal port includes at least one of fig. 4.

Optionally, in a case that subcarriers corresponding to the first reference signal port and the second reference signal port are different, the number of subcarriers occupied by the first reference signal and the second reference signal is 6, and the first orthogonal superposition code of the reference signal corresponding to the second reference signal port is { [ +1, +1, +1, +1], [ -1, -1, -1, -1, -1] }, the reference signal sequence corresponding to the second reference signal port includes at least one item in fig. 5.

Optionally, in a case that subcarriers corresponding to the first reference signal port and the second reference signal port are different, the number of subcarriers occupied by the first reference signal and the second reference signal is 6, and the first orthogonal superposition code of the reference signal corresponding to the first reference signal port is [ +1, +1, +1, +1, +1], and the first orthogonal superposition code of the reference signal corresponding to the second reference signal port is [ +1, -1, +1, -1, +1, -1], the reference signal sequence corresponding to the first reference signal port or the second reference signal port includes at least one of fig. 6.

Optionally, in a case that subcarriers corresponding to the first reference signal port and the second reference signal port are different, the number of subcarriers occupied by the first reference signal and the second reference signal is 6, and the first orthogonal superposition code of the reference signal corresponding to the first reference signal port is [ +1, +1, +1, +1, +1], and the first orthogonal superposition code of the reference signal corresponding to the second reference signal port is [ +1, -1, +1, -1, +1, -1], the reference signal sequence corresponding to the second reference signal port includes at least one of fig. 7.

Optionally, when the subcarriers corresponding to the first reference signal port and the second reference signal port are the same, the number of subcarriers occupied by the first reference signal and the second reference signal is 6, the second orthogonal superposition code of the reference signal corresponding to the first reference signal port is [ +1, +1, +1, +1, +1], and the first orthogonal superposition code of the reference signal corresponding to the second reference signal port is [ +1, -1, +1, -1, +1, -1], the reference signal sequence corresponding to the second reference signal port includes at least one of fig. 8.

Optionally, in a case that the subcarriers corresponding to the first reference signal port and the second reference signal port are the same, the number of subcarriers occupied by the first reference signal and the second reference signal is 12, the second orthogonal superposition code of the reference signal corresponding to the first reference signal port is [ +1, +1, +1, +1, +1, +1, +1, and 1], the first orthogonal superposition code of the reference signal corresponding to the second reference signal port is [ +1, -1, +1, -1, +1, -1] and 1], the reference signal sequence corresponding to the second reference signal port includes at least one item in fig. 9.

Optionally, the subcarriers corresponding to the first reference signal port and the second reference signal port are the same, the number of subcarriers occupied by the first reference signal and the second reference signal is 18, the second orthogonal superposition code of the reference signal corresponding to the first reference signal port is [ +1, +1, +1, +1, +1, +1, +1, +1, +1, +1, +1, +1, +1, +1, +1], in the case where the first orthogonal superposition code of the reference signal corresponding to the second reference signal port is [ +1, -1, +1, -1, +1, -1, +1, -1, +1, -1, +1, -1, +1, -1, +1, -1, the reference signal sequence corresponding to the second reference signal port includes at least one item in fig. 10.

Optionally, the subcarriers corresponding to the first reference signal port and the second reference signal port are the same, the number of subcarriers occupied by the first reference signal and the second reference signal is 24, the second orthogonal superposition code of the reference signal corresponding to the first reference signal port is [ +1, +1, +1, +1, +1, +1, +1, +1, +1, +1, +1, +1, +1, +1, +1, +1, +1, +1, +1, +1, +1, +1, +1, + 1-1, +1, -1, +1, -1, +1, -1, and-1 ], the reference signal sequence corresponding to the second reference signal port includes at least one of fig. 11.

The terminal 1200 can implement each process in the method embodiment of the present invention and achieve the same beneficial effects, and is not described herein again to avoid repetition.

Referring to fig. 13, fig. 13 is a second structural diagram of a terminal according to a second embodiment of the present invention, where the terminal may be a hardware structural diagram of a terminal for implementing various embodiments of the present invention. As shown in fig. 13, terminal 1300 includes, but is not limited to: a radio frequency unit 1301, a network module 1302, an audio output unit 1303, an input unit 1304, a sensor 1305, a display unit 1306, a user input unit 1307, an interface unit 1308, a memory 1309, a processor 1310, a power supply 1311, and the like. Those skilled in the art will appreciate that the terminal configuration shown in fig. 13 is not intended to be limiting, and that the terminal may include more or fewer components than shown, or some components may be combined, or a different arrangement of components. In the embodiment of the present invention, the terminal includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted terminal, a wearable device, a pedometer, and the like.

The radio frequency unit 1301 is configured to:

Optionally:

or the like, or, alternatively,

Optionally, the radio frequency unit 1301 is further configured to:

It should be noted that, in this embodiment, the terminal 1300 may implement each process in the method embodiment of the present invention and achieve the same beneficial effects, and for avoiding repetition, details are not described here.

It should be understood that, in the embodiment of the present invention, the radio frequency unit 1301 may be configured to receive and transmit signals during a message transmission or call process, and specifically, receive downlink data from a base station and then process the received downlink data to the processor 1310; in addition, the uplink data is transmitted to the base station. In general, radio unit 1301 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the radio frequency unit 1301 can also communicate with a network and other devices through a wireless communication system.

The terminal provides wireless broadband internet access to the user through the network module 1302, such as helping the user send and receive e-mails, browse web pages, and access streaming media.

The audio output unit 1303 can convert audio data received by the radio frequency unit 1301 or the network module 1302 or stored in the memory 1309 into an audio signal and output as sound. Also, the audio output unit 1303 may also provide audio output related to a specific function performed by the terminal 1300 (e.g., a call signal reception sound, a message reception sound, etc.). The audio output unit 1303 includes a speaker, a buzzer, a receiver, and the like.

The input unit 1304 is used to receive audio or video signals. The input Unit 1304 may include a Graphics Processing Unit (GPU) 13041 and a microphone 13042, and the Graphics processor 13041 processes image data of still pictures or video obtained by an image capturing apparatus (such as a camera) in a video capture mode or an image capture mode. The processed image frames may be displayed on the display unit 1306. The image frames processed by the graphic processor 13041 may be stored in the memory 1309 (or other storage medium) or transmitted via the radio frequency unit 1301 or the network module 1302. The microphone 13042 can receive sounds and can process such sounds into audio data. The processed audio data may be converted into a format output transmittable to a mobile communication base station via the radio frequency unit 1301 in case of a phone call mode.

Terminal 1300 can also include at least one sensor 1305, such as a light sensor, motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor that adjusts the brightness of the display panel 13061 according to the brightness of ambient light, and a proximity sensor that turns off the display panel 13061 and/or backlight when the terminal 1300 moves to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally three axes), detect the magnitude and direction of gravity when stationary, and can be used to identify the terminal posture (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration identification related functions (such as pedometer, tapping), and the like; the sensors 1305 may also include a fingerprint sensor, a pressure sensor, an iris sensor, a molecular sensor, a gyroscope, a barometer, a hygrometer, a thermometer, an infrared sensor, etc., which will not be described in detail herein.

The display unit 1306 is used to display information input by a user or information provided to the user. The Display unit 1306 may include a Display panel 13061, and the Display panel 13061 may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like.

The user input unit 1307 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the terminal. Specifically, the user input unit 1307 includes a touch panel 13071 and other input devices 13072. Touch panel 13071, also referred to as a touch screen, may collect touch operations by a user on or near it (e.g., operations by a user on touch panel 13071 or near touch panel 13071 using a finger, stylus, or any other suitable object or attachment). The touch panel 13071 may include two parts, a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 1310, and receives and executes commands sent from the processor 1310. In addition, the touch panel 13071 can be implemented by various types such as resistive, capacitive, infrared, and surface acoustic wave. The user input unit 1307 may include other input devices 13072 in addition to the touch panel 13071. In particular, the other input devices 13072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described herein again.

Further, the touch panel 13071 can be overlaid on the display panel 13061, and when the touch panel 13071 detects a touch operation on or near the touch panel, the touch operation can be transmitted to the processor 1310 to determine the type of the touch event, and then the processor 1310 can provide a corresponding visual output on the display panel 13061 according to the type of the touch event. Although the touch panel 13071 and the display panel 13061 are shown in fig. 13 as two separate components to implement the input and output functions of the terminal, in some embodiments, the touch panel 13071 may be integrated with the display panel 13061 to implement the input and output functions of the terminal, which is not limited herein.

An interface unit 1308 is an interface for connecting an external device to the terminal 1300. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. Interface unit 1308 can be used to receive input from an external device (e.g., data information, power, etc.) and transmit the received input to one or more elements within terminal 1300 or can be used to transmit data between terminal 1300 and an external device.

The memory 1309 may be used to store software programs as well as various data. The memory 1309 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. Further, the memory 1309 can include high-speed random access memory, and can also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.

The processor 1310 is a control center of the terminal, connects various parts of the entire terminal using various interfaces and lines, and performs various functions of the terminal and processes data by operating or executing software programs and/or modules stored in the memory 1309 and calling data stored in the memory 1309, thereby monitoring the terminal as a whole. Processor 1310 may include one or more processing units; preferably, the processor 1310 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into processor 1310.

The terminal 1300 may also include a power supply 1311 (e.g., a battery) for powering the various components, and preferably, the power supply 1311 may be logically coupled to the processor 1310 via a power management system that provides functionality for managing charging, discharging, and power consumption via the power management system.

In addition, terminal 1300 includes some functional modules that are not shown, and are not described herein again.

Preferably, an embodiment of the present invention further provides a terminal, including a processor 1310, a memory 1309, and a computer program stored in the memory 1309 and capable of running on the processor 1310, where the computer program, when executed by the processor 1310, implements each process of the foregoing transmission method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not described here again.

The embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements the processes of the transmission method embodiment, and can achieve the same technical effects, and in order to avoid repetition, details are not repeated here. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.

While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A transmission method applied to a terminal, the method comprising:

the modulation method comprises the following steps of first type modulation, first orthogonal superposition code modulation, discrete Fourier transform modulation, frequency domain filtering, second orthogonal superposition code modulation and inverse fast Fourier transform modulation, wherein N is an integer larger than 1;

the transmitting the reference signal by using at least one reference signal port of the N reference signal ports includes:

a first reference signal port is adopted to transmit a first reference signal, a second reference signal port is adopted to transmit a second reference signal, and the first reference signal and the second reference signal are comb-shaped reference signals;

when the subcarriers corresponding to the first reference signal port and the second reference signal port are different and the number of subcarriers occupied by a target reference signal is 6, a reference signal sequence corresponding to the target reference signal port includes at least one of the following:

5、-7、7、1、5、1；

-3、7、-5、-1、-5、-1；

5、7、-3、-5、5、-5。

2. the method of claim 1, wherein different reference signal ports of the N reference signal ports correspond to different reference signal sequences.

3. The method of claim 1, wherein:

or the like, or, alternatively,

4. The method according to claim 1, wherein in a case that the subcarriers corresponding to the first reference signal port and the second reference signal port are different and the number of subcarriers occupied by the target reference signal is 6, the reference signal sequence corresponding to the target reference signal port further includes at least one of:

7、-5、7、-5、7、3；

7、-5、3、5、-1、-7；

5、-7、5、-7、-3、-7；

3、1、5、1、5、-7；

1、5、-7、7、1、5；

3、-1、3、-3、-5、-1；

5、-1、-3、-1、5、-5；

7、-7、1、5、3、-3；

7、1、7、-3、-1、-3；

7、1、-5、-7、-5、1；

-5、5、-1、-3、-1、5；

-5、-1、-7、7、-5、-1；

3、5、-1、5、-1、-3；

7、-1、-3、5、-7、5；

-1、-3、3、5、-1、5；

-1、1、5、-5、7、3；

7、-7、5、1、-3、3；

-1、1、-7、-3、-5、5；

7、-7、-3、5、-1、-7；

7、-5、-1、3、-3、-7；

-3、-7、-3、1、-3、-7；

7、-7、3、-7、3、1；

3、5、1、5、-3、-5；

7、-5、-1、3、1、-3；

7、1、3、-7、7、1；

5、-1、-7、7、-7、-3；

5、5、-7、1、-5、-5；

wherein the target reference signal port is the first reference signal port if the target reference signal is the first reference signal; or, in the case that the target reference signal is the second reference signal, the target reference signal port is the second reference signal port.

5. The method of claim 1, wherein in a case that the subcarriers corresponding to the first reference signal port and the second reference signal port are different, the number of subcarriers occupied by the second reference signal is 6, and the first orthogonal superposition code of the reference signal corresponding to the second reference signal port is [ +1, +1, +1, +1, +1] the reference signal sequence corresponding to the second reference signal port comprises at least one of:

-1、1、-7、-3、-5、5；

7、-7、-3、5、-1、-7；

5、5、-7、1、-5、-5；

-7、-5、-5、3、-3、7；

7、-5、-1、3、-3、-7；

-3、-7、-3、1、-3、-7；

7、-5、7、-5、7、3；

7、-7、3、-7、3、1；

3、5、1、5、-3、-5；

7、-5、3、5、-1、-7；

3、-5、5、-7、-7、1；

7、-5、-1、3、1、-3；

7、1、3、-7、7、1；

1、7、1、-1、1、5；

5、-1、-7、7、-7、-3；

7、-7、7、1、7、-5；

-5、7、-1、-1、-3、1；

5、3、1、1、5、-5；

7、-1、-7、5、5、5；

7、3、-1、3、7、-5；

1、5、1、-3、-7、-3；

7、1、-5、3、5、7；

7、5、7、-3、7、-5；

7、-7、7、3、-5、1；

1、-5、-3、-1、-1、7；

7、5、-5、1、-7、-7；

7、-3、5、5、3、1；

7、1、-5、1、7、-7；

5、7、-7、-1、-7、7；

7、-7、7、3、7、1。

6. the method of claim 1, wherein corresponding subcarriers at the first reference signal port and the second reference signal port are different, and the number of subcarriers occupied by the first reference signal and the second reference signal is 6, and the first orthogonal superposition code of the reference signal corresponding to the first reference signal port is { [ +1, +1, +1, +1], [ +1, +1, +1, +1, +1, +1] }, in the case that the first orthogonal superposition code of the reference signal corresponding to the second reference signal port is { [ +1, +1, +1, +1, +1, +1], [ -1, -1, -1, -1, -1] }, the reference signal sequence corresponding to the first reference signal port or the second reference signal port includes at least one of:

7、3、-1、-5、-1、3；

5、-7、5、-7、-3、-7；

3、1、5、1、5、-7；

7、-5、3、5、-1、-7；

-3、7、-5、-1、-5、-1；

5、-1、-3、-1、5、-5；

7、1、7、-3、-1、-3；

7、1、-5、-7、-5、1；

-5、5、-1、-3、-1、5；

5、7、-3、-5、5、-5；

-1、1、5、-5、7、3；

3、5、-1、5、-1、-3；

7、-7、5、1、-3、3；

7、-1、-3、5、-7、5；

7、5、-7、1、-3、7；

-1、-3、3、5、-1、5；

-3、-5、-5、5、1、-7；

3、-7、-3、-1、-5、7；

-7、5、7、-5、1、-3；

-1、3、7、7、3、-1；

5、7、-5、5、-7、5；

-1、-7、-3、-1、7、3；

7、3、-1、-1、3、7；

7、7、3、-1、7、-5；

-5、7、-3、3、7、5；

5、-7、3、-3、-7、-5；

7、1、-5、-1、1、3；

7、-3、3、-1、-3、-5；

7、-7、-5、-1、-5、5；

7、-5、-3、-1、-7、3。

7. the method of claim 1, wherein in a case that subcarriers corresponding to the first reference signal port and the second reference signal port are different, the number of subcarriers occupied by the first reference signal and the second reference signal is 6, and the first orthogonal superposition code of the reference signal corresponding to the second reference signal port is { [ +1, +1, +1, +1, +1, +1], [ -1, -1, -1, -1, -1] }, the reference signal sequence corresponding to the second reference signal port comprises at least one of:

-1、3、7、7、3、-1；

7、7、-5、-1、7、3；

5、7、-5、5、-7、5；

-1、7、5、1、7、3；

-1、-7、-3、-1、7、3；

-3、1、-3、3、-1、-3；

7、3、-1、-1、3、7；

7、7、3、-1、7、-5；

-5、7、-3、3、7、5；

5、-7、3、-3、-7、-5；

7、1、-5、-1、1、3；

7、-3、3、-1、-3、-5；

7、7、7、-1、7、-1；

7、-1、-1、-1、-1、7；

-1、7、-1、7、7、7；

7、5、3、-1、3、-7；

7、-7、-5、-1、-5、5；

7、3、1、-1、5、-5；

7、-5、-3、-1、-7、3；

7、1、-5、1、3、1；

5、-5、1、-5、-7、-5；

5、-1、-3、-1、1、7；

1、3、5、-5、1、-5；

7、5、3、-3、7、-3；

7、-3、-1、-3、-5、5；

7、1、7、-3、-1、1；

7、-3、7、1、-1、-3；

1、3、1、-5、1、7；

-5、5、3、1、3、-7；

7、5、7、-3、7、1。

8. the method of claim 1, wherein in a case that subcarriers corresponding to the first reference signal port and the second reference signal port are different, the number of subcarriers occupied by the first reference signal and the second reference signal is 6, and the first orthogonal superposition code of the reference signal corresponding to the first reference signal port is [ +1, +1, +1, +1, +1], and the first orthogonal superposition code of the reference signal corresponding to the second reference signal port is [ +1, -1, +1, -1, +1, -1], the reference signal sequence corresponding to the first reference signal port or the second reference signal port includes at least one of:

7、-5、3、5、-1、-7；

7、-5、7、-5、7、3；

5、-7、5、-7、-3、-7；

3、1、5、1、5、-7；

1、5、-7、7、1、5；

3、-1、3、-3、-5、-1；

5、-7、7、1、5、1；

-3、7、-5、-1、-5、-1；

5、-1、-3、-1、5、-5；

7、-7、1、5、3、-3；

7、1、7、-3、-1、-3；

7、1、-5、-7、-5、1；

-5、5、-1、-3、-1、5；

-5、-1、-7、7、-5、-1；

5、7、-3、-5、5、-5；

3、5、-1、5、-1、-3；

7、-1、-3、5、-7、5；

5、-7、7、1、5、1；

7、1、-5、-7、-5、1；

-5、-1、-7、7、-5、-1；

7、-5、-1、-5、7、-5；

1、-5、-3、5、-7、7；

7、-5、-1、3、-3、-7；

-5、-3、1、-7、3、-3；

5、-7、5、-7、5、1；

7、-7、5、-7、1、-1；

7、-3、-1、-7、-1、-7；

1、5、-7、-3、-5、7；

7、1、3、-7、7、1；

7、3、-1、3、-1、3。

9. the method of claim 1, wherein in a case that subcarriers corresponding to the first reference signal port and the second reference signal port are different, the number of subcarriers occupied by the first reference signal and the second reference signal is 6, and the first orthogonal superposition code of the reference signal corresponding to the first reference signal port is [ +1, +1, +1, +1, +1], and the first orthogonal superposition code of the reference signal corresponding to the second reference signal port is [ +1, -1, +1, -1, +1, -1], the reference signal sequence corresponding to the second reference signal port includes at least one of:

5、-1、-1、-7、-7、-3；

7、-5、-1、-5、7、-5；

1、-5、-3、5、-7、7；

-7、-5、-5、3、-3、7；

7、-5、-1、3、-3、-7；

-5、-3、1、-7、3、-3；

7、-5、3、5、-1、-7；

5、-7、5、-7、5、1；

7、-7、5、-7、1、-1；

7、-5、-5、5、5、-1；

7、-3、-1、-7、-1、-7；

1、5、-7、-3、-5、7；

7、1、3、-7、7、1；

7、-1、-7、3、5、7；

7、3、-1、3、7、-5；

7、3、-1、3、-1、3；

7、1、-5、3、3、5；

7、1、-3、5、5、3；

7、3、3、5、7、-3；

7、-5、7、3、-1、3；

7、5、3、3、-7、-1；

7、-1、7、3、3、3；

1、1、1、-3、5、-3；

7、3、-5、3、7、7；

7、-1、1、3、3、-3；

7、7、-3、3、-5、-7；

7、-3、3、3、1、-1；

7、1、1、3、7、-1；

7、1、-5、1、7、-7；

7、-7、7、5、-1、5。

10. the method of claim 1, wherein in a case that the subcarriers corresponding to the first reference signal port and the second reference signal port are the same, the number of subcarriers occupied by the first reference signal and the second reference signal is 6, the second orthogonal superposition code of the reference signal corresponding to the first reference signal port is [ +1, +1, +1, +1, +1], and the first orthogonal superposition code of the reference signal corresponding to the second reference signal port is [ +1, -1, +1, -1, +1, -1], the reference signal sequence corresponding to the second reference signal port includes at least one of:

-7、-3、1、5、1、-3；

7、-5、-1、-5、-1、-5；

3、5、-5、1、-5、5；

5、7、-3、7、-3、-5；

7、-3、-1、-7、-1、-7；

-1、5、-5、-3、-5、5；

5、1、5、-7、5、1；

5、-1、1、7、5、-1；

-1、-7、-1、1、-5、-7；

7、-7、-1、-3、-1、-3；

7、-3、-1、-3、-1、-7；

7、-3、-1、1、-1、-3；

7、-1、1、3、3、-3；

7、-3、3、3、1、-1；

7、-7、-5、1、-5、-7；

5、5、-7、1、-7、5；

7、-1、3、1、1、-5；

7、1、5、5、1、-1；

7、-5、1、1、3、-1；

7、-1、1、5、5、1；

7、5、7、-3、-5、5；

7、5、-5、-3、7、5；

7、7、-3、1、-7、5；

7、-5、-3、5、-5、7；

7、7、-5、5、-3、-5；

7、5、-7、1、-3、7；

7、-7、-1、5、3、-5；

1、3、5、-5、7、7；

7、-3、-3、1、-5、-7；

7、-5、3、5、-1、-7。

11. the method of claim 1, wherein in a case that the subcarriers corresponding to the first reference signal port and the second reference signal port are the same, the number of subcarriers occupied by the first reference signal and the second reference signal is 12, the second orthogonal superposition code of the reference signal corresponding to the first reference signal port is [ +1, +1, +1, +1, +1, +1, +1, +1, +1, +1, +1, +1], and the first orthogonal superposition code of the reference signal corresponding to the second reference signal port is [ +1, -1, +1, -1, +1, -1, +1, and-1 ], the reference signal sequence corresponding to the second reference signal port includes at least one of:

0、1、1、1、1、0、0、1、0、0、1、1；

1、0、1、1、0、0、0、0、1、0、0、1；

1、1、0、1、1、0、0、1、0、0、1、1；

0、1、0、0、1、1、0、1、1、1、1、0；

1、1、1、0、1、1、0、1、0、0、1、0；

0、1、0、1、1、0、1、1、1、0、1、0；

1、1、1、0、1、0、0、1、0、1、1、0；

1、0、1、1、0、1、0、0、0、1、0、0；

0、0、0、1、1、0、1、1、1、0、1、1；

0、0、0、1、0、0、1、1、1、0、0、1；

1、1、1、1、1、0、0、1、0、0、1、0；

1、0、1、1、0、0、0、0、0、1、0、1；

1、0、1、1、0、1、0、0、0、0、0、1；

1、1、1、0、1、0、0、1、0、0、1、1；

1、0、1、1、1、0、0、1、0、0、1、1；

0、1、0、0、1、1、1、0、1、1、1、0；

1、0、1、1、0、0、0、1、0、1、0、0；

1、0、1、0、0、1、0、1、0、0、0、1；

1、0、1、0、1、1、0、1、0、0、1、1；

1、0、1、1、1、0、0、1、0、1、1、0；

1、1、1、0、0、1、0、1、0、0、0、0；

1、0、1、0、1、1、0、0、0、1、1、1；

1、1、1、0、0、0、0、1、0、1、0、0；

1、0、1、1、1、1、0、0、0、1、1、0；

1、0、1、1、0、1、1、1、0、0、0、1；

1、0、0、0、1、0、0、1、0、0、1、1；

0、1、0、0、1、1、1、0、0、0、1、0；

1、0、1、1、1、0、0、0、0、1、1、1；

1、1、1、1、0、0、0、1、0、0、0、0；

1、1、1、0、0、0、0、1、0、0、0、1。

12. the method of claim 1, wherein the number of subcarriers occupied by the first reference signal port and the second reference signal port is 18, the second orthogonal superposition code of the reference signal corresponding to the first reference signal port is [ +1, +1, +1, +1, +1, +1, +1, +1, +1, +1, +1, and 1], the first orthogonal superposition code of the reference signal corresponding to the second reference signal port is [ +1, -1, +1, -1, +1, the reference signal sequence corresponding to the second reference signal port includes at least one of:

1、0、1、1、1、0、0、0、1、1、0、0、0、0、0、0、0、1；

1、1、0、1、0、1、1、0、1、1、1、0、0、1、0、1、0、0；

1、1、1、0、1、1、0、1、1、0、1、1、1、1、1、0、0、0；

1、0、1、0、1、0、0、0、1、1、0、1、1、0、0、1、0、0；

1、0、0、1、1、0、1、1、0、1、0、1、0、1、1、1、0、0；

1、1、1、1、1、0、1、0、1、1、0、1、1、0、0、0、1、1；

1、0、1、0、0、1、1、1、0、1、0、1、0、1、1、1、0、0；

1、1、0、1、0、1、1、1、0、0、0、0、1、0、0、1、0、1；

0、1、1、1、0、1、1、0、1、1、0、1、0、1、1、0、1、1；

0、0、0、0、1、0、0、0、1、1、1、1、0、1、1、0、1、0；

1、0、1、0、0、1、0、1、1、1、0、1、1、1、0、1、0、0；

1、1、0、1、0、1、1、0、1、0、1、1、0、1、1、1、0、1；

0、1、0、1、0、1、1、0、1、1、0、0、0、1、1、0、1、1；

1、1、0、1、1、0、0、1、0、1、0、0、1、0、1、0、0、0；

1、0、1、0、1、0、0、1、0、0、1、1、0、1、1、0、0、0；

1、1、0、1、1、0、0、0、1、0、1、0、1、0、0、1、0、0；

1、0、1、0、0、1、0、1、0、0、1、1、0、1、1、0、0、0；

0、0、1、0、1、0、0、1、0、0、0、1、0、0、1、0、0、1；

1、0、1、1、0、1、1、0、1、1、0、1、1、1、0、1、1、0；

1、1、0、1、1、0、1、0、1、1、0、1、1、0、1、1、0、1；

1、1、0、1、0、1、1、1、0、0、1、0、1、0、1、0、0、1；

0、0、0、1、1、0、1、1、0、1、0、1、0、1、1、0、1、1；

1、0、1、0、0、1、1、1、0、1、0、1、1、0、1、1、0、0；

1、0、1、0、1、0、0、0、1、1、0、1、0、1、1、0、0、0；

1、0、1、0、0、1、0、1、0、1、0、0、0、1、1、1、0、0；

1、1、0、1、1、0、1、1、0、1、0、1、1、0、1、1、1、0；

1、0、0、1、0、0、0、1、0、0、1、0、0、1、0、1、0、0；

1、1、0、1、1、0、1、0、1、1、0、1、1、0、1、1、1、0；

1、0、1、1、0、1、1、1、0、1、0、1、1、0、1、0、0、0；

1、0、1、1、0、1、0、1、1、1、0、1、1、0、1、0、0、0。

13. the method of claim 1, wherein the number of subcarriers occupied by the first reference signal and the second reference signal is 24, the second orthogonal superposition code of the reference signal corresponding to the first reference signal port is [ +1, +1, +1, +1, +1, +1, +1, +1, +1, +1, +1, +1, +1, +1, and 1, the first orthogonal superposition code of the reference signal corresponding to the second reference signal port is [ +1, -1, +1, +1, +1, +1, +1, -1, +1, +1, +1, -1, +1, -1, +1, -1, +1, -1, +1, -1, +1, -1, the reference signal sequence for the second reference signal port comprises at least one of:

0、1、1、0、0、1、0、1、0、0、1、1、0、0、0、0、0、0、1、0、0、1、0、1；

1、0、1、1、0、0、1、1、1、1、1、1、0、1、1、0、1、0、1、0、0、1、1、0；

1、0、1、1、1、0、0、0、0、0、0、1、1、0、0、0、0、0、1、1、0、0、1、0；

1、1、0、1、1、0、1、1、1、1、0、1、1、0、1、0、1、0、0、0、1、1、1、0；

1、1、0、1、1、0、1、0、1、0、0、0、1、1、1、0、1、1、0、1、1、0、1、1；

1、0、0、0、1、1、1、0、1、1、0、1、1、0、1、1、1、1、0、1、1、0、1、0；

1、0、0、1、1、1、0、0、0、0、0、1、1、1、1、1、1、1、1、1、0、0、1、1；

1、0、1、0、1、0、0、1、1、1、0、0、0、1、1、1、0、1、0、1、1、1、0、0；

1、1、1、1、0、0、1、0、0、1、0、0、0、1、0、0、1、0、1、0、1、0、0、1；

1、0、1、0、0、0、1、1、0、1、0、1、0、1、0、0、1、1、1、1、1、0、0、1；

1、0、1、0、1、0、0、1、1、1、0、1、0、0、1、1、0、0、0、0、0、1、1、0；

1、1、1、1、1、1、0、0、1、0、0、0、0、1、1、0、0、1、0、1、0、0、1、1；

1、1、1、1、0、0、1、1、0、1、0、1、0、1、1、0、1、0、1、1、1、0、0、1；

1、1、1、1、0、1、1、0、0、0、0、0、0、0、0、1、1、0、1、0、1、1、0、0；

1、1、1、1、1、1、0、0、1、1、1、0、1、0、0、1、0、0、0、0、1、0、0、1；

0、1、0、1、0、0、1、0、0、1、1、0、1、1、0、0、1、0、1、0、1、0、0、1；

1、1、1、0、0、1、1、1、0、0、0、0、0、0、0、1、1、1、1、1、1、1、0、0；

0、1、0、1、0、1、0、1、1、0、0、0、1、1、1、1、0、0、1、1、1、0、0、1；

1、0、0、1、0、0、1、1、0、1、0、1、0、1、1、0、1、0、1、0、1、1、0、1；

0、1、0、1、0、0、1、1、0、1、1、0、0、1、0、0、1、0、1、0、1、0、0、1；

1、0、0、0、0、0、0、1、1、1、0、1、0、0、0、1、1、1、0、0、0、1、0、0；

1、0、1、1、0、1、1、1、0、0、0、1、0、1、0、1、1、0、1、1、1、1、0、1；

1、1、0、1、0、0、0、1、1、1、0、0、0、1、0、0、1、0、0、0、0、0、0、1；

1、0、0、1、0、0、1、1、0、1、0、1、0、1、0、1、1、0、1、0、1、1、0、1；

1、0、0、0、0、0、0、1、1、1、0、1、0、1、0、0、1、1、0、0、0、0、0、1；

1、1、0、0、0、0、0、1、1、0、0、0、0、0、0、1、1、1、0、1、0、1、0、0；

1、0、1、0、1、1、1、0、0、0、1、1、1、0、0、1、0、1、0、1、0、0、1、1；

1、0、0、0、1、0、1、0、1、1、0、0、1、1、1、1、1、0、0、1、1、1、1、1；

1、0、1、1、0、1、1、0、0、0、0、0、0、0、1、1、0、1、1、1、1、1、0、1；

0、0、1、0、1、0、0、1、0、0、0、1、0、1、0、0、0、1、1、1、0、0、0、1。

14. a terminal, characterized in that the terminal comprises:

the transmission module is specifically configured to:

5、-7、7、1、5、1；

-3、7、-5、-1、-5、-1；

5、7、-3、-5、5、-5。

15. a terminal, characterized in that it comprises a processor, a memory and a computer program stored on the memory and executable on the processor, the computer program, when executed by the processor, implementing the steps of the transmission method according to any one of claims 1 to 13.

16. A computer-readable storage medium, characterized in that a computer program is stored on the computer-readable storage medium, which computer program, when being executed by a processor, carries out the steps of the transmission method according to one of claims 1 to 13.