Signal generation method, communication node, storage medium and program product

Abstract

The invention provides a signal generation method, a communication node, a storage medium and a program product. The signal generation method comprises the following steps: acquiring a first sequence; generating a first signal according to the first sequence, the first signal occupying at least one symbol in a time domain; wherein the data information carried by the first signal in the occupied symbol comprises M elements in the first sequence, and M is an integer greater than or equal to 1.

Description

Technical Field

[0001] The present application relates to the field of communication technology, for example, to a signal generation method, a communication node, a storage medium and a program product. Background Art

[0002] For the fifth generation mobile communication system (5G), in addition to latency, reliability and availability, the energy efficiency of the user equipment (UE) is also crucial. Designing to extend battery life is a necessary condition for improving energy efficiency and user experience.

[0003] The power consumption of UE depends on the length of the configured wake-up cycle. In order to meet the battery life requirements, the structure of the low-power signal and the determination of the carried sequence information are technical issues that need to be solved urgently. Summary of the invention

[0004] The present application provides a signal generation method, a communication node, a storage medium and a program product.

[0005] In a first aspect, an embodiment of the present application provides a signal generation method, including:

[0006] Get the first sequence;

[0007] Generate a first signal according to a first sequence, wherein the first signal occupies at least one symbol in the time domain;

[0008] The data information carried by the first signal in the occupied symbol includes M elements in the first sequence, where M is an integer greater than or equal to 1.

[0009] In a second aspect, an embodiment of the present application provides a communication node, including:

[0010] one or more processors;

[0011] A storage device for storing one or more programs;

[0012] When the one or more programs are executed by the one or more processors, the one or more processors implement the signal generating method provided in the embodiments of the present application.

[0013] In a third aspect, an embodiment of the present application provides a storage medium, characterized in that the storage medium stores a computer program, and when the computer program is executed by a processor, the signal generation method provided by the embodiment of the present application is implemented.

[0014] Fourthly, an embodiment of the present application provides a computer program product, including a computer program, which, when executed by a processor, implements the signal generation method provided by the embodiment of the present application.

[0015] More descriptions about the above embodiments and other aspects of the present application and their implementation manners are provided in the accompanying drawings, the detailed implementation manners, and the claims. Description of the Drawings

[0016] Figure 1 is a flowchart of a signal generation method provided by an embodiment of the present application;

[0017] Figure 2 is a flowchart of a MC-OOK based LP-WUS generation method provided by an embodiment of the present application;

[0018] Figure 3 is a flowchart of another MC-OOK based LP-WUS generation method provided by an embodiment of the present application;

[0019] Figure 4 is a flowchart of a MC-OOK based LP-WUS generation method provided by an embodiment of the present application;

[0020] Figure 5 is a schematic structural diagram of a signal generation device provided by an embodiment of the present application;

[0021] Figure 6 is a schematic structural diagram of a communication node provided by an embodiment of the present application. Detailed Implementation Manner

[0022] To make the objectives, technical solutions, and advantages of the present application clearer and more understandable, the embodiments of the present application will be described in detail below with reference to the accompanying drawings. It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other arbitrarily.

[0023] The steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions. And although the logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in a different order than here.

[0024] The terms "first", "second", etc. in the present application are used to distinguish similar objects, and do not necessarily need to be used to describe a specific order or sequence.

[0025] 5G devices may need to be charged weekly or daily according to an individual's usage time. Generally, 5G devices consume dozens of milliwatts of power in the Radio Resource Control (RRC) idle / inactive state and hundreds of milliwatts of power in the RRC connected state. Designing to extend battery life is a prerequisite for improving energy efficiency and user experience.

[0026] The power consumption of the UE depends on the configured wake-up cycle length, such as the paging cycle. To meet the battery life requirements, it is expected to use extended discontinuous reception (eDRX) cycles with higher value, which results in high latency and is not suitable for services that require both battery life and low latency. Therefore, a low-power wake-up mechanism can be introduced. The low-power wake-up mechanism involves a low-power wake-up signal (LP-WUS), a low-power synchronization signal (LP-SS), and a low-power preamble (LP-Preamble). The waveform of the low-power wake-up signal can be generated by on-off keying (OOK) modulation, which is called an OOK-based LP-WUS.

[0027] There is no determined solution for the structure of LP-SS and LP-Preamble and the sequence information they carry.

[0028] The role of LP-WUS is to carry low-power wake-up information.

[0029] The role of LP-SS includes at least one of the following: performing radio resource management (RRM) measurements by detecting LP-SS, performing downlink synchronization by detecting LP-SS, and performing frequency offset correction by detecting LP-SS.

[0030] The role of LP-Preamble includes at least one of the following: performing RRM measurements by detecting LP-Preamble, detecting LP-Preamble for downlink synchronization, and detecting LP-Preamble for frequency offset correction.

[0031] In some embodiments, the transmission of the LP-Preamble is before the LP-WUS. The terminal device performs downlink synchronization and / or frequency offset correction by detecting the LP-Preamble, thereby improving the detection performance of the terminal for detecting the LP-WUS. The terminal device covers any suitable type of wireless user equipment, such as a mobile phone, a portable data processing device, a portable web browser, or a vehicle-mounted mobile station.

[0032] In an exemplary embodiment, Figure 1 is a flowchart of a signal generation method provided by an embodiment of the present application; the signal generation method provided by this embodiment can be applicable to the situation of generating a first signal. The signal generation method can be executed by a signal generation device, and the signal generation device can be integrated in a communication node. The communication node can be any device capable of generating the first signal, such as a base station. The first signal can include LP-SS / LP-Preamble.

[0033] The waveform of the above signals (LP-WUS / LP-SS / LP-Preamble) can be generated by the OOK modulation method, which is called OOK based LP-WUS / LP-SS / LP-Preamble. In addition, in the present application, the above signals can be carried by multiple subcarriers, that is, when the number of subcarriers occupied by the OOK based LP-WUS / LP-SS / LP-Preamble in frequency is greater than 1, it is called multiple subcarrier (MC)-OOK based LP-WUS / LP-SS / LP-Preamble.

[0034] The following first describes the MC-OOK based LP-WUS generation method:

[0035] In one embodiment, the MC-OOK based LP-WUS generation method can generate the time-domain expression form of M MC-OOK based LP-WUS symbols, where M is greater than or equal to 1.

[0036] Figure 2 is a flowchart of an MC-OOK based LP-WUS generation method provided by an embodiment of the present application. Refer to Figure 2 , and the generation method includes the following steps:

[0037] Step 1: The data information transmitted on M OOK symbols is S M , define S M = [s 0 , s 1 , s 2 , s 3 , sM-1 and with a length of M;

[0038] Step 2: Convert S M into data information Q K , where the length of Q K is K, and K is greater than or equal to 1. Here, the generation formula of the data information Q K is not restricted, as long as the data information S M can be converted into the data information Q K with a length of K.

[0039]

[0040] Or,

[0041]

[0042] where, A 0 + A 1 + … A i + … + A M-1 = K, A 0 , A 1 … A i …, A M-1 respectively correspond to Figure 2 in the of the A.

[0043] where, the value of the data can be configured. Where, 0 ≤ i ≤ M - 1.

[0044] Step 3: Perform K - point DFT / FFT operation on the data information Q K to obtain the data information D K = [d 0 , d 1 , d 2 , d 3 ,..., d K-1 .

[0045] Further, at least one of the following operations can also be performed on D K , and the following operations can be optional steps:

[0046] Perform a circular shift upward operation on D K , and the size of the circular shift is or or K / 2. Where, is the ceiling operator, is the floor operator;

[0047] For D K perform a cyclic shift operation downward, and the size of the cyclic shift is or or K / 2. Wherein, is the ceiling operator, is the floor operator;

[0048] For D K perform a cyclic shift operation to the left, and the size of the cyclic shift is or or K / 2. Wherein, is the ceiling operator, is the floor operator;

[0049] For D K perform a cyclic shift operation to the right, and the size of the cyclic shift is or or K / 2. Wherein, is the ceiling operator, is the floor operator;

[0050] For D K perform the FFTSHIFT operation, where FFTSHIFT is a function used to move the zero-frequency component of the Fourier transform to the center of the spectrum. For the vector X, FFTSHIFT(X) exchanges the left and right halves of X or exchanges the upper and lower halves of X. For the matrix X, FFTSHIFT(X) exchanges the first and third quadrants, and the second and fourth quadrants.

[0051] Step 4: Fill the data information D K onto K subcarriers in the frequency domain; when the overall frequency domain bandwidth of the system includes N subcarriers, then perform the N-point IDFT / IFFT operation on the filled data on the N subcarriers to obtain the time-domain data T N =[t 0 ,t 1 ,t 2 ,t 3 ,...,t N-1 . Wherein, N is greater than or equal to 1.

[0052] Wherein, T N =[t 0 ,t 1 ,t 2 ,t 3 ,...,t N-1 is the sampled point data of M OOK time-domain symbols.

[0053] Wherein, [t 0 ,t 1 ,t2 ,t 3 ,...,t N / M-1 , is the sampled point data of the first OOK time-domain symbol among M OOK time-domain symbols, [t N / M ,t N / M+1 ,...,t 2N / M-1 , is the sampled point data of the second OOK time-domain symbol among M OOK time-domain symbols, and so on, [t (M-1)N / M ,t (M-1)N / M+1 ,...,t N-1 , is the sampled point data of the Mth OOK time-domain symbol among M OOK time-domain symbols.

[0054] Furthermore, before performing the N-point IDFT / IFFT operation, at least one of the following operations can also be performed on the data filled on N subcarriers, and this operation can be an optional operation:

[0055] Perform a circular shift operation on the data upward, and the size of the circular shift is Or Or N / 2. Wherein, is the ceiling operator, is the floor operator;

[0056] Perform a circular shift operation on the data downward, and the size of the circular shift is Or Or N / 2. Wherein, is the ceiling operator, is the floor operator;

[0057] Perform a circular shift operation on the data to the left, and the size of the circular shift is Or Or N / 2. Wherein, is the ceiling operator, is the floor operator;

[0058] Perform a circular shift operation on the data to the right, and the size of the circular shift is Or Or N / 2. Wherein, is the ceiling operator, is the floor operator;

[0059] Perform the FFTSHIFT operation on the said data, where FFTSHIFT is a function used to shift the zero-frequency component of the Fourier transform to the center of the frequency spectrum. For vector X, FFTSHIFT(X) exchanges the left and right halves of X or exchanges the upper and lower halves of X. For matrix X, FFTSHIFT(X) exchanges the first and third quadrants, and the second and fourth quadrants.

[0060] Step 5: The time-domain data T of N sampling points N = [t 0 , t 1 , t 2 , t 3 ,..., t N-1 Before transmission, the operation of adding a cyclic prefix (CP) needs to be performed, that is, copying the information of the last N N sampling points at the tail of the time-domain data T of N sampling points cp to the head of the time-domain data T of N sampling points N to form the time-domain data of (N + N cp ) sampling points, and then sending out the data of these (N + N cp ) sampling points.

[0061] In addition, in step 4, when the number of frequency-domain subcarriers allocated to the MC-OOK based LP-WUS symbol is not equal to K, for example, when the number of frequency-domain subcarriers allocated to the MC-OOK based LP-WUS symbol is K1, where K1 is not equal to K, the process of step 4 is modified to the following operation: Figure 3 is the flowchart of another MC-OOK based LP-WUS generation method provided by the embodiments of the present application. Figure 3 shows the generation process:

[0062] (1) Process the data information D K = [d 0 , d 1 , d 2 , d 3 ,..., d K-1 to convert D K into E K1 , where E K1 = [e 0 , e 1 , e 2 , e 3 ,..., e K1-1 ;

[0063] Further, at least one of the following operations can be performed on E K1 , and this operation can be an optional operation:

[0064] Perform an upward circular shift operation on , and the size of the circular shift is or or K1 / 2. Wherein, is the ceiling operator, is the floor operator;

[0065] Perform a downward circular shift operation on E K1 , and the size of the circular shift is or or K1 / 2. Wherein, is the ceiling operator, is the floor operator;

[0066] Perform a left circular shift operation on E K1 , and the size of the circular shift is or or K1 / 2. Wherein, is the ceiling operator, is the floor operator;

[0067] Perform a right circular shift operation on E K1 , and the size of the circular shift is or or K1 / 2. Wherein, is the ceiling operator, is the floor operator;

[0068] Perform the FFTSHIFT operation on E K1 . Wherein, FFTSHIFT is a function used to move the zero-frequency component of the Fourier transform to the center of the frequency spectrum. For the vector X, FFTSHIFT(X) exchanges the left and right halves of X or exchanges the upper and lower halves of X. For the matrix X, FFTSHIFT(X) exchanges the first and third quadrants, and the second and fourth quadrants.

[0069] (2) Fill the data information E K1 onto K1 subcarriers in the frequency domain;

[0070] (3) When the overall frequency domain bandwidth of the system includes N subcarriers, then perform the N-point IDFT / IFFT operation on the filled data on the N subcarriers to obtain the time-domain data T N =[t 0 ,t 1 ,t 2 ,t 3 ,...,t N-1 . Wherein, N is greater than or equal to 1.

[0071] Among them, T N = [t 0 , t 1 , t 2 , t 3 ,..., t N-1 is the sampled point data of M OOK time-domain symbols.

[0072] Among them, [t 0 , t 1 , t 2 , t 3 ,..., t N / M-1 is the sampled point data of the first OOK time-domain symbol among M OOK time-domain symbols, [t N / M , t N / M+1 ,..., t 2N / M-1 is the sampled point data of the second OOK time-domain symbol among M OOK time-domain symbols, and so on, [t (M-1)N / M , t (M-1)N / M+1 ,..., t N-1 is the sampled point data of the Mth OOK time-domain symbol among M OOK time-domain symbols.

[0073] Furthermore, before performing the N-point IDFT / IFFT operation, at least one of the following operations can also be performed on the data filled on N subcarriers, and this operation can be an optional operation:

[0074] Perform an upward circular shift operation on the data, and the size of the circular shift is Or Or N / 2. Among them, is the ceiling operator, is the floor operator;

[0075] Perform a downward circular shift operation on the data, and the size of the circular shift is Or Or N / 2. Among them, is the ceiling operator, is the floor operator;

[0076] Perform a left circular shift operation on the data, and the size of the circular shift is Or Or N / 2. Among them, is the ceiling operator, is the floor operator;

[0077] Perform a right circular shift operation on the data, and the size of the circular shift is Or Or N / 2. Wherein, Is the ceiling operator, Is the floor operator;

[0078] Perform the FFTSHIFT operation on the said data, wherein, FFTSHIFT is a function for moving the zero-frequency component of the Fourier transform to the center of the frequency spectrum. For the vector X, FFTSHIFT(X) exchanges the left and right halves of X or exchanges the upper and lower halves of X. For the matrix X, FFTSHIFT(X) exchanges the first and third quadrants, and the second and fourth quadrants.

[0079] The MC-OOK based LP-WUS generation method generates the time-domain expression forms of M MC-OOK based LP-WUS symbols, where M is greater than or equal to 1. The generation process includes the following steps:

[0080] Step 1: The data information transmitted on M OOK symbols is S M , Define S M =[s 0 , s 1 , s 2 , s 3 ..., s M-1 and the length is M;

[0081] Step 2: Generate the data information M From S according to the following formula

[0082]

[0083] Or

[0084]

[0085] Wherein, Wherein, Is an integer greater than or equal to 1. Further, Is preferably N. Wherein, N is the number of subcarriers included in the system bandwidth.

[0086] Wherein, the value of the data Can be configured. Wherein, 0 ≤ i ≤ M - 1.

[0087] Step 3: Pass the data information Through the first processing module to obtain the data information D K =[d 0 , d 1 , d 2 , d 3 ,..., d K-1 T ​。

[0088] Among them, the first processing module includes at least one of the following operations:

[0089] (1) Generate data information D according to the following formula K

[0090]

[0091] where Preferably, is the generalized inverse matrix of F. Among them, (X) -1 is the operation of finding the inverse matrix of matrix X, (X) H is the operation of finding the conjugate transpose matrix of matrix X, (X) H is the operation of finding the transpose matrix of matrix X.

[0092] Among them, F is a matrix composed of K column elements in the IDFT Matrix, and the matrix F is a matrix with rows and K columns.

[0093] Among them, the expression of the IDFT Matrix is:

[0094]

[0095] or

[0096]

[0097] Furthermore, the positions of the K column elements in the IDFT Matrix that make up F among the column elements in the IDFT Matrix are determined by filling at least the data information D K into K subcarrier positions or subcarrier indices in the frequency domain.

[0098] (2) Perform at least one of the following operations on D K This operation can be an optional operation:

[0099] Perform an upward cyclic shift operation on D K The size of the cyclic shift is or or K / 2. Among them, is the ceiling operator, is the floor operator;

[0100] Perform a downward cyclic shift operation on D K The size of the cyclic shift is or or K / 2. Among them, ​is the ceiling operator, is the floor operator;

[0101] performs a left circular shift operation on D K The size of the circular shift is or or K / 2. Where, is the ceiling operator, is the floor operator;

[0102] performs a right circular shift operation on D K The size of the circular shift is or or K / 2. Where, is the ceiling operator, is the floor operator;

[0103] performs the FFTSHIFT operation on D K where FFTSHIFT is a function used to move the zero-frequency component of the Fourier transform to the center of the spectrum. For the vector X, FFTSHIFT(X) exchanges the left and right halves of X or exchanges the upper and lower halves of X. For the matrix X, FFTSHIFT(X) exchanges the first and third quadrants, and the second and fourth quadrants.

[0104] Step 4: Fill the data information D K onto K subcarriers in the frequency domain; when the overall frequency domain bandwidth of the system includes N subcarriers, then perform the N-point IDFT / IFFT operation on the filled data on the N subcarriers to obtain the time-domain data T N =[t 0 ,t 1 ,t 2 ,t 3 ,...,t N-1 . Where, N is greater than or equal to 1.

[0105] Where, T N =[t 0 ,t 1 ,t 2 ,t 3 ,...,t N-1 is the sampled point data of M OOK time-domain symbols.

[0106] Where, [t 0 ,t 1 ,t 2 ,t 3 ,...,t N / M-1 is the sampled point data of the first OOK time-domain symbol among M OOK time-domain symbols, [tN / M ,t N / M+1 ,...,t 2N / M-1 is the sampled point data of the second OOK time-domain symbol among M OOK time-domain symbols, and so on, [t (M-1)N / M ,t (M -1)N / M + 1,...,t N-1 is the sampled point data of the Mth OOK time-domain symbol among M OOK time-domain symbols.

[0107] Step 5: The time-domain data T of N sampled points N = [t 0 ,t 1 ,t 2 ,t 3 ,...,t N-1 Before transmission, an operation of adding CP (Cyclic prefix) needs to be performed, that is, copying the information of the last N N sampled points at the tail of the time-domain data T cp to the head of the time-domain data T N to form the time-domain data of (N + N cp ) sampled points, and then sending out the data of these (N + N cp ) sampled points.

[0108] In addition, in Step 4, when the number of frequency-domain subcarriers allocated to the MC-OOK based LP-WUS symbol is not equal to K, for example, when the number of frequency-domain subcarriers allocated to the MC-OOK based LP-WUS symbol is K1, where K1 is not equal to K, the process of Step 4 is as follows. Figure 4 is a flowchart of a method for generating MC-OOK based LP-WUS provided by an embodiment of the present application. The generation process is shown in Figure 4 :

[0109] (1) Process the data information D K = [d 0 ,d 1 ,d 2 ,d 3 ,...,d K-1 , and convert D K into E K1 , where E K1 = [e 0 ,e 1 ,e 2 ,e 3 ,...,e K1-1 ;

[0110] (2) The data information E K1Fill it onto K1 subcarriers in the frequency domain;

[0111] (3) When the overall frequency domain bandwidth of the system includes N subcarriers, perform N-point IDFT / IFFT operations on the filled data on the N subcarriers to obtain the time-domain data T of N sampling points N =[t 0 ,t 1 ,t 2 ,t 3 ,...,t N-1 . Where N is greater than or equal to 1.

[0112] Among them, T N =[t 0 ,t 1 ,t 2 ,t 3 ,...,t N-1 is the sampling point data of M OOK time-domain symbols.

[0113] Among them, [t 0 ,t 1 ,t 2 ,t 3 ,...,t N / M-1 is the sampling point data of the first OOK time-domain symbol among M OOK time-domain symbols, [t N / M ,t N / M+1 ,...,t 2N / M-1 is the sampling point data of the second OOK time-domain symbol among M OOK time-domain symbols, and so on, [t (M-1)N / M ,t (M -1)N / M+1,...,t N-1 is the sampling point data of the Mth OOK time-domain symbol among M OOK time-domain symbols.

[0114] The present disclosure can also process the data information S M in the following manner 1 or manner 2 to obtain the data information Q K or the data information

[0115] Manner 1: The data information transmitted on M OOK symbols is S M , S M includes M elements, that is, the length of S M is M, denoted as S M =[s 0 ,s 1 ,s 2 ,s 3 ...,s M-1 .

[0116] Step 1: Based on data information S M The element s in i Generate Es i .

[0117] For example, Es i Any of the following formulas can be satisfied:

[0118]

[0119] Among them, x i =0 or x i =s i ,y i =0 or y i =s i .

[0120] Step 2: Based on Es i Generate data information Q K Or data information

[0121] Among them, Q K =[Es 0 ,Es 1 ,...,Es M-1 ],

[0122] Q K The length of is K, and K is greater than or equal to 1. Exemplarily, K may be the number of subcarriers occupied by LP-WUS / LP-SS / LP-Preamble in the frequency domain.

[0123] It should be noted that the number of subcarriers corresponding to the protection bandwidth configured by LP-WUS / LP-SS / LP-Preamble in the frequency domain is not counted in the K subcarriers.

[0124] The length is in, is an integer greater than or equal to 1. For example, The value of can be N. Wherein, N is the number of subcarriers included in the system bandwidth.

[0125] Method 2: The data information sent on M OOK symbols is S M , S M There are M elements in it, namely S M The length is M, expressed as S M =[s 0 ,s 1 ,s 2 ,s 3 ...,s M-1 ].

[0126] Step 1: Based on the data information S M in the element s i generate Es i .

[0127] Exemplarily, Es i can satisfy any of the following formulas:

[0128]

[0129] wherein, or in the B i elements, for example can be the last B i elements in, 0 ≤ b i ≤ B i -1.

[0130] or is in the C i elements, for example can be the first C i elements in, 0 ≤ c i ≤ C i -1.

[0131] wherein, the value of the data can be configured, 0 ≤ i ≤ M - 1.

[0132] In some embodiments, the data is composed of at least one of the following:

[0133] (1) A sequence of length

[0134] (2) A sequence of length is the first elements in or 0 elements or padding elements, where the padding elements can be any pre-defined elements.

[0135] (3) A sequence of length is the last elements in or 0 elements or ​​​padding elements

[0136] Exemplarily, the sequence can be a binary random sequence, such as a ZC sequence (Zadoff-Chu), a maximum length linear feedback shift register sequence (M sequence), a pseudo noise sequence (PN sequence). The sequence can also be a repetition of a binary random sequence

[0137] In some embodiments, the data can be a combination of the above sequences, for example:

[0138]

[0139] Exemplarily, the data can also be obtained by processing based on the elements of the above sequences. Taking as an example, one of its elements is where 0 ≤ a ≤ A i -1, and can be multiplied and / or divided and / or added and / or subtracted by an element

[0140] Step 2: Generate data information Q i based on Es K or data information

[0141] where Q K = [Es 0 , Es 1 ,..., Es M-1 ,

[0142] Q K has a length of K, and K is greater than or equal to 1. Exemplarily, K can be the number of subcarriers occupied by LP-WUS / LP-SS / LP-Preamble in the frequency domain

[0143] It should be noted that the number of subcarriers corresponding to the guard bandwidth configured by LP-WUS / LP-SS / LP-Preamble in the frequency domain is not counted among the K subcarriers

[0144] has a length of where is an integer greater than or equal to 1. Exemplarily The value of can be N, where N is the number of subcarriers included in the system bandwidth.

[0145] It should be noted that the embodiments of the present application can draw on or refer to each other. For example, the same or similar steps, method embodiments, system embodiments, and device embodiments can all refer to each other without limitation.

[0146] The following introduces the generation of the first signal. As Figure 1 shown, the signal generation method provided by the present application includes:

[0147] S110. Obtain a first sequence.

[0148] The first sequence can be a sequence used to generate the first signal, and the first sequence can be a binary sequence. In this embodiment, the characteristics that the binary sequence used for the first signal, such as LP-SS or LP-preamble, needs to satisfy are defined.

[0149] This operation obtains the first sequence to facilitate the generation of the first signal.

[0150] S120. Generate a first signal according to the first sequence, where the first signal occupies at least one symbol in the time domain; wherein, the data information carried by the first signal in the occupied symbol includes M elements in the first sequence, where M is an integer greater than or equal to 1.

[0151] The first signal can be a low-power signal, such as LP-SS or LP-preamble.

[0152] This operation generates the first signal according to the first sequence. The first signal occupies at least one symbol in the time domain, such as occupying at least one Orthogonal Frequency Division Multiplexing (OFDM) symbol or at least one OOK symbol.

[0153] In the symbol occupied by the first signal, such as in one OFDM symbol or in M OOK symbols, the data information S M (see the above definition) includes M elements. Among them, the data information S M is M elements in the first sequence.

[0154] Among them, the symbol occupied by the first signal is not all the symbols occupied by the first signal.

[0155] In one example, when the symbol occupied by the first signal is an OFDM symbol, one OFDM symbol includes M elements. When the symbol occupied by the first signal is an OOK symbol, M OOK symbols include M elements.

[0156] In this embodiment, the value of M is associated with the values of the elements in the data information and the values of the elements in the first sequence. When M is greater than 1, the values of the elements in the data information can satisfy certain conditions. When M is equal to 1, the values of the elements in the first sequence can satisfy certain conditions.

[0157] There can be two values in the first sequence and / or the second sequence. The two values can be any two of positive value, negative value, and zero value.

[0158] In one example, when the length of the first sequence is 16, for example, the first sequence is 1010 0101 1100 0011. When an OFDM symbol includes M = 4 OOK symbols, the first sequence can be divided into 4 parts, namely Part1 =

[1010] , Part2 =

[0101] , Part3 =

[1100] , and Part4 =

[0011] .

[0159] Each Part is the data information S M , and then the time-domain expression forms corresponding to the 4 OOK symbols are generated by using the above scheme, that is, the time-domain expression form corresponding to 1 OFDM symbol. In this embodiment, the time-domain expression forms corresponding to the 4 OOK symbols generated based on Part1 are sent in the first OFDM symbol, the time-domain expression forms corresponding to the 4 OOK symbols generated based on Part2 are sent in the second OFDM symbol, the time-domain expression forms corresponding to the 4 OOK symbols generated based on Part3 are sent in the third OFDM symbol, and the time-domain expression forms corresponding to the 4 OOK symbols generated based on Part4 are sent in the fourth OFDM symbol.

[0160] The signal generation method provided in this embodiment generates the first signal according to the first sequence, and defines the structure of the generated first signal and the sequence information carried.

[0161] Based on the above embodiment, a variant embodiment of the above embodiment is proposed. Here, it should be noted that for the sake of brief description, only the differences from the above embodiment are described in the variant embodiment.

[0162] In one embodiment, it includes at least one of the following: when M is greater than 1, the number of elements with the first value and the number of elements with the second value in the data information are equal or differ by 1; when M is equal to 1, the number of elements with the first value and the number of elements with the second value in the first sequence are equal or differ by 1.

[0163] In one embodiment, the combination of the first value and the second value includes at least one of the following:

[0164] The first value is zero and the second value is non - zero;

[0165] The first value is negative and the second value is positive;

[0166] The first value is zero and the second value is 1;

[0167] The first value is - 1 and the second value is 1.

[0168] In one embodiment, the combination of the first value and the second value includes at least one of the following:

[0169] The first value is zero and the second value is non - zero;

[0170] The first value is negative and the second value is positive.

[0171] In this embodiment, the non - zero second value can be 1 and / or - 1.

[0172] In one embodiment, the combination of the first value and the second value includes at least one of the following:

[0173] The first value is zero and the second value is 1;

[0174] The first value is - 1 and the second value is 1.

[0175] In one embodiment, the signal generation method further includes:

[0176] Determine the configuration information of the first signal according to the configuration information of the second signal;

[0177] Wherein, the configuration information of the second signal includes the transmission mode of the second signal.

[0178] The second signal can be a signal different from the first signal, such as LP - WUS. The configuration information can include information capable of determining the configuration information of the first signal, such as the transmission mode of the second signal. The transmission mode is not limited herein. It includes OOK.

[0179] In this embodiment, the configuration information of the first signal is not limited, including but not limited to the transmission mode of the first signal.

[0180] In one embodiment, the configuration information of the first signal includes one or more of the following:

[0181] The length of the first sequence; the transmission mode of the first signal.

[0182] In this embodiment, the length of the first sequence of the first signal and / or the transmission mode of the first signal are determined based on the configuration information of the second signal. The transmission mode is not limited herein and includes OOK.

[0183] The length of the first sequence can be any length. The length of the first sequence can be set arbitrarily or can be associated with the transmission mode and the value of M. The association relationship is not limited herein.

[0184] In one embodiment, the transmission mode of the first signal includes one or more of the following:

[0185] The format adopted for the transmission of the first signal is binary on-off keying OOK, M = 1;

[0186] The format adopted for the transmission of the first signal is OOK, M = 2;

[0187] The format adopted for the transmission of the first signal is OOK, M = 4.

[0188] In this embodiment, the general meanings of OOK and M include that an OFDM symbol includes M OOK symbols.

[0189] Meaning in the first signal: M elements in the first sequence are carried in an OFDM symbol;

[0190] Meaning in the second signal: M elements in the data information carried in an OFDM symbol;

[0191] In this embodiment, the format adopted for the transmission of the first signal is OOK, and the value of M can be at least one of the following: 1; 2; 4.

[0192] In one embodiment, the transmission mode of the second signal includes one or more of the following:

[0193] The format adopted for the transmission of the second signal is OOK, M = 1;

[0194] The format adopted for the transmission of the second signal is OOK, M = 2;

[0195] The format adopted for the transmission of the second signal is OOK, M = 4.

[0196] In this embodiment, the meanings of OOK and M are as above and will not be elaborated herein.

[0197] The format adopted for the transmission of the second signal is OOK, and the value of M is at least one of the following: 1; 2; 4.

[0198] In one embodiment, the length of the first sequence includes one or more of the following:

[0199] 6, 8, 12, 16, 32。

[0200] When the format adopted for the first signal transmission is OOK and M takes values of 1, 2, or 4, the length of the first sequence can be one or more of the following: 6, 8, 12, 16, 32.

[0201] In one embodiment, it includes one or more of the following:

[0202] When the format adopted for the first signal transmission is OOK and M = 1, the length of the first sequence is 6 or 8;

[0203] When the format adopted for the first signal transmission is OOK and M = 2, the length of the first sequence is 12 or 16;

[0204] When the format adopted for the first signal transmission is OOK and M = 4, the length of the first sequence is 16 or 32.

[0205] In one embodiment, it includes one or more of the following:

[0206] When the format adopted for the first signal transmission is OOK and M = 1, the length of the first sequence is 6;

[0207] When the format adopted for the first signal transmission is OOK and M = 2, the length of the first sequence is 12;

[0208] When the format adopted for the first signal transmission is OOK and M = 4, the length of the first sequence is 16;

[0209] When the format adopted for the first signal transmission is OOK and M = 1, the length of the first sequence is 8;

[0210] When the format adopted for the first signal transmission is OOK and M = 2, the length of the first sequence is 16;

[0211] When the format adopted for the first signal transmission is OOK and M = 4, the length of the first sequence is 32.

[0212] In one embodiment, the signal generation method further includes:

[0213] According to the transmission period of the first signal, determine one or more of the following:

[0214] The transmission mode of the first signal; the length of the first sequence; the transmission mode of the second signal.

[0215] In this embodiment, the transmission period of the first signal may be associated with at least one of the following: the transmission mode of the first signal; the length of the first sequence; the transmission mode of the second signal.

[0216] There is no limitation here on how to determine at least one of the following associations based on the transmission period of the first signal: the transmission mode of the first signal; the length of the first sequence; the transmission mode of the second signal. It can be determined based on the corresponding relationship.

[0217] In one embodiment, the transmission period of the first signal has a corresponding relationship with one or more of the following:

[0218] The transmission mode of the first signal; the length of the first sequence; the transmission mode of the second signal.

[0219] In this embodiment, the transmission period of the first signal has a corresponding relationship with at least one of the following: the transmission mode of the first signal; the length of the first sequence; the transmission mode of the second signal.

[0220] In one example, the transmission period of the first signal has a corresponding relationship with the transmission mode of the first signal and the length of the first sequence.

[0221] Table 1 is a corresponding relationship table of the transmission period of the first signal, the length of the first sequence, and the transmission mode of the first signal provided by this application. Any row in Table 1 can form an independent table, and Table 1 is only for illustrative description.

[0222] Table 1 A corresponding relationship table of the transmission period of the first signal, the length of the first sequence, and the transmission mode of the first signal provided by this application

[0223] Transmission period of the first signal Length of the first sequence Transmission mode of the first signal 320 ms L＝32 OOK, M = 4 320 ms L＝16 OOK, M = 4 160 ms L＝16 OOK, M = 4 160 ms L＝16 OOK, M = 2 160 ms L＝12 OOK, M = 2 80 ms L＝12 OOK, M = 2 80 ms L＝8 OOK, M = 2 80 ms L＝8 OOK, M = 1 80 ms L＝6 OOK, M = 1

[0224] In one example, the transmission period of the first signal has a corresponding relationship with the length of the first sequence, the transmission mode of the first signal, and the transmission mode of the second signal. Table 2 is a corresponding table of the transmission period of the first signal, the length of the first sequence, the transmission mode of the first signal, and the transmission mode of the second signal provided by this application.

[0225] Table 2 A corresponding table of the transmission period of the first signal, the length of the first sequence, the transmission mode of the first signal, and the transmission mode of the second signal provided by this application

[0226]

[0227] In one embodiment, the first sequence includes one or more of the following:

[0228] The second sequence;

[0229] At least one padding element;

[0230] At least one element in the second sequence.

[0231] In this embodiment, the first sequence may be the second sequence, or the second sequence after being padded based on at least one padding element, or a sequence composed of the second sequence and at least one element in the second sequence, or a sequence composed of the second sequence, at least one padding element, and at least one element in the second sequence.

[0232] The padding element can be any element, and the value of the element is not limited here. At least one element in the second sequence can be a cyclic shift element of the second sequence.

[0233] Exemplarily, the at least one padding element is N1 elements, where N1 is a positive integer. The N1 padding elements are zero elements. The positions of the N1 elements include at least one of the following:

[0234] Some or all of the N1 elements are located before the second sequence;

[0235] Some or all of the N1 elements are located after the second sequence;

[0236] Some or all of the N1 elements are located in the second sequence;

[0237] In one example, when the first sequence is composed of the second sequence and at least one element in the second sequence, the at least one element is at least one cyclic shift element of the second sequence.

[0238] Among them, at least one cyclic shift element can be an element in the cyclic prefix and / or cyclic suffix of the second sequence. Among them, the cyclic prefix operation is to move the signal at the tail of a signal to the head of the signal. The cyclic suffix operation is to move the signal at the head of a signal to the tail of the signal.

[0239] Exemplarily, when the number of at least one cyclic shift element is N2, where N2 is a positive integer, the N2 cyclic shift elements can be the first N2 elements in the second sequence, or the last N2 elements in the second sequence, or N2 elements among the first N3 elements and / or the last N4 elements in the second sequence, where N3 and N4 are positive integers.

[0240] Among them, the first N2 elements refer to N2 elements starting from the starting element of the second sequence, and the last N2 elements refer to N2 elements counted forward from the last element of the second sequence. The first N3 elements refer to N3 elements starting from the starting element of the second sequence, and the last N4 elements refer to N4 elements counted forward from the last element of the second sequence.

[0241] Exemplarily, the first sequence may be composed of a cyclic prefix of the second sequence + the second sequence + a cyclic suffix of the second sequence. The first sequence may also be composed of the second sequence + a cyclic suffix of the second sequence. The first sequence may also be composed of a cyclic prefix of the second sequence + the second sequence + at least one padding element.

[0242] In one embodiment, the first sequence is generated by a Manchester codeword, where the Manchester codeword includes at least one of the following:

[0243] A Manchester codeword of length 2 [0 1];

[0244] A Manchester codeword of length 2 [1 0];

[0245] A Manchester codeword of length 4 [0 1 0 1];

[0246] A Manchester codeword of length 4 [1 0 1 0];

[0247] A Manchester codeword of length 4 [1 0 0 1];

[0248] A Manchester codeword of length 4 [0 1 1 0];

[0249] A Manchester codeword of length 4 [0 0 1 1];

[0250] A Manchester codeword of length 4 [1 1 0 0].

[0251] In this embodiment, the first sequence can be generated based on the Manchester codeword, such as selecting one or more Manchester codewords from the above Manchester codewords to form the first sequence. The length of the Manchester codeword is not limited.

[0252] In one embodiment, obtaining the first sequence includes:

[0253] Selecting one or more from the Manchester codewords to form the first sequence.

[0254] In this embodiment, one or more Manchester codewords are selected from multiple Manchester codewords to form the first sequence.

[0255] During the selection process, repeated selection can be made.

[0256] In one embodiment, the first sequence is generated by a Manchester code and a third sequence, where the Manchester code includes at least one of the following:

[0257] The element (also referred to as information or bit) corresponding to the Manchester code [0 1] of length 2 is 0 or -1, and the element corresponding to the Manchester code [1 0] of length 2 is 1;

[0258] The element corresponding to the Manchester code [0 1] of length 2 is 1, and the element corresponding to the Manchester code

[10] of length 2 is 0 or -1;

[0259] The element corresponding to the Manchester code [0 0] of length 2 is 0 or -1, and the element corresponding to the Manchester code [1 1] of length 2 is 1;

[0260] The element corresponding to the Manchester code [0 0] of length 2 is 1, and the element corresponding to the Manchester code

[11] of length 2 is 0 or -1;

[0261] The element corresponding to the Manchester code [0 1 0 1] of length 4 is 0 or -1, and the element corresponding to the Manchester code [1 0 1 0] of length 4 is 1;

[0262] The element corresponding to the Manchester code [0 1 0 1] of length 4 is 1, and the element corresponding to the Manchester code [1 0 1 0] of length 4 is 0 or -1;

[0263] The element corresponding to the Manchester code [0 1 1 0] of length 4 is 0 or -1, and the element corresponding to the Manchester code [1 0 0 1] of length 4 is 1;

[0264] The element corresponding to the Manchester code [0 1 1 0] of length 4 is "1", and the element corresponding to the Manchester code [1 0 0 1] of length 4 is 0 or -1;

[0265] The element corresponding to the Manchester code [0 0 1 1] of length 4 is 0 or -1, and the element corresponding to the Manchester code [1 1 0 0] of length 4 is 1;

[0266] The element corresponding to the Manchester codeword [0 0 1 1] with a length of 4 is 1, and the element corresponding to the Manchester codeword [1 1 0 0] with a length of 4 is 0 or -1;

[0267] Among them, the third sequence is composed of elements 0 and 1, or composed of elements 1 and -1.

[0268] The order of the elements in the third sequence is not limited. The manner of generating the first sequence from the Manchester codeword and the third sequence is not limited here. Manchester codewords can be selected based on the third sequence to form the first sequence. How to select Manchester codewords based on the third sequence is not limited here.

[0269] In one embodiment, among the Manchester codewords corresponding to the determined Manchester codeword length, each element in the third sequence selects a corresponding Manchester codeword according to the value of the element to form the first sequence.

[0270] In this embodiment, corresponding Manchester codewords are selected based on the values of the elements in the third sequence, and the first sequence is formed based on the selected Manchester codewords. The correspondence between the values of the elements and the Manchester codewords can be preset.

[0271] Through the above solution, better timing synchronization accuracy and RSRP / RSRQ measurement accuracy can be provided.

[0272] The following takes the first sequence lengths of 4, 6, 8, 12, 16, and 32 as examples for illustration. It should be noted that the following sequences are all applicable to the first signal with a transmission format of OOK, M = 1 or OOK, M = 2 or OOK, M = 4.

[0273] A preferred transmission format is given for the specific first sequence, but it is also applicable to other transmission formats. The content describing the first sequence in the following examples is also applicable to the second sequence. For example, a second sequence that satisfies the following conditions is combined with at least one padding element and / or at least one element in the second sequence to form a first sequence for generating the first signal.

[0274] In one example, when there is M = 1 OOK symbol in one OFDM symbol, that is, the transmission format of the first signal is OOK and M = 1. The length of the first sequence carried by the first signal is 6, occupying 6 OFDM symbols, that is, a total of 6 OOK symbols are occupied. Table 3 is a schematic table of a first sequence of the system according to the embodiment of the present application. The first sequence is as shown in Table 3 below, where each row represents a first sequence. In addition, "0", "1", and "-1" in the following table can be replaced with each other.

[0275] Optionally, "0" in the first sequence in each of the following tables can be replaced with "-1".

[0276] Optionally, "-1" in the first sequence in each of the following tables can be replaced with "0".

[0277] Optionally, "0" in the first sequence in each of the following tables can be replaced with "1", and at the same time, "1" can be replaced with "-1".

[0278] When generating the first signal based on the first sequence listed in Table 3 and using the first signal for timing synchronization estimation and / or RSRP / RSRQ measurement, the accuracy of timing synchronization estimation and / or the accuracy of RSRP / RSRQ measurement are significantly improved. When selecting 4 of the sequences as the first sequence, it is preferred to select the 4 first sequences with indexes 1, 2, 3, and 4.

[0279] Table 3 Schematic table of a first sequence of the system according to the embodiment of the present application

[0280]

[0281]

[0282] The following description of the sequence combination applies to all subsequent examples: When selecting 4 of the sequences as the first sequence, the preferred sequence combinations are at least one of the following. Among them, the 4 sequences corresponding to each index have low cross-correlation characteristics. When the first sequences corresponding to the first signals sent by multiple adjacent base stations are taken from different sequences among the 4 sequences corresponding to the same index, due to the low cross-correlation performance among the 4 sequences, for the first signal of the target base station, the interference intensity from the first signals sent by adjacent base stations can be reduced, thereby ensuring the accuracy of timing synchronization estimation and / or the accuracy of RSRP / RSRQ measurement based on the first signal of the target base station.

[0283] In this embodiment, the autocorrelation characteristics of the sequence are obtained through the following calculation:

[0284]

[0285] In addition to this embodiment, the autocorrelation characteristic of the sequence can also be obtained through the following calculation:

[0286]

[0287] wherein, the said sequence is represented by Seq A and wherein, the length of the said Seq A is N A .

[0288] In this embodiment, the cross-correlation characteristic of two different sequences is obtained through the following calculation:

[0289]

[0290] wherein, the first sequence is represented by Seq A and the second sequence is represented by Seq B and wherein, the lengths of the said Seq A and Seq B are N A .

[0291] In addition to this embodiment, the cross-correlation characteristic of two different sequences can also be obtained through the following calculation:

[0292]

[0293]

[0294] wherein, the first sequence is represented by Seq A and the second sequence is represented by Seq B and wherein, the lengths of the said Seq A and Seq B are N A .

[0295] In this embodiment, four sequences with the R value corresponding to any two selected sequences from the above sequences being less than a determined threshold are used as preferred sequence combinations, as shown in the following table.

[0296] R = MaxCross / MaxAuto

[0297] wherein, MaxCross is the maximum value in dimensions of CrossCorr1 A,B,d and CrossCorr1 A,B,d ;

[0298] wherein, the dimension of MaxAuto is AutoCorr1 A,dand AutoCorr1 A,d Medium value maximum;

[0299] Table 4 is a schematic table of a sequence combination provided by an embodiment of the present application, Figure 4 showing 4 selected sequences.

[0300] Table 4 A schematic table of a sequence combination provided by an embodiment of the present application

[0301]

[0302] When the receiving end performs timing synchronization estimation and / or RSRP / RSRQ measurement by receiving and detecting the first signal, the receiving end will convert the first sequence saved locally into a third sequence, where the third sequence is generated according to at least one of the following operations:

[0303] Y = 2X - 1, where X is an element in the first sequence and Y is an element in the corresponding third sequence;

[0304] Y = 1 - 2X, where X is an element in the first sequence and Y is an element in the corresponding third sequence;

[0305] The elements that are "0" in the first sequence remain unchanged, and then the elements that are "0" in the first sequence are converted to "-1", thereby generating a third sequence.

[0306] Then, when the receiving end detects the first sequence through sequence correlation, the local sequence used by the receiving end is the third sequence.

[0307] In one example, when there is M = 1 OOK symbol in 1 OFDM symbol, that is, the transmission format of the first signal is OOK and M = 1. The length of the first sequence carried by the first signal is 6, occupying 6 OFDM symbols, that is, a total of 6 OOK symbols are occupied. Table 5 is another schematic table of the first sequence provided by an embodiment of the present application. The first sequence is as shown in Table 5 below, where each row represents a first sequence. In addition, the "0", "1", and "-1" in the following table can be replaced with each other.

[0308] Optionally, the "0" in the first sequence in the following tables can be replaced with "-1".

[0309] Optionally, the "-1" in the first sequence in the following tables can be replaced with "0".

[0310] Optionally, the "0" in the first sequence in the following tables can be replaced with "1", and at the same time, the "1" can be replaced with "-1".

[0311] Table 5 Another schematic table of the first sequence provided by an embodiment of the present application.

[0312]

[0313] The first signal generated based on the first sequence listed in the above table, when using the first signal for timing synchronization estimation and / or RSRP / RSRQ measurement, significantly improves the accuracy of timing synchronization estimation and / or the accuracy of RSRP / RSRQ measurement. When selecting 4 of the sequences as the first sequence, it is preferable to select 4 first sequences with indexes 1, 2, 3, and 4.

[0314] When selecting 4 of the sequences as the first sequence, the preferred sequence combinations are at least one of the following. There is a low cross-correlation value among the 4 sequences. Table 6 is another schematic table of sequence combinations provided by the embodiments of the present application. The selected sequences are shown in Table 6.

[0315] Table 6 Another schematic table of sequence combinations provided by the embodiments of the present application

[0316]

[0317] In one example, when there is M = 1 OOK symbol in 1 OFDM symbol, that is, the transmission format of the first signal is OOK, M = 1. The length of the first sequence carried by the first signal is 6, occupying 6 OFDM symbols, that is, a total of 6 OOK symbols are occupied. Table 7 is a schematic table of a first sequence provided by the embodiments of the present application. The first sequences are as shown in Table 7 below, where each row represents a first sequence. In addition, "0", "1", and "-1" in the following table can be replaced with each other.

[0318] Optionally, "0" in the first sequence in the following tables can be replaced with "-1".

[0319] Optionally, "-1" in the first sequence in the following tables can be replaced with "0".

[0320] Optionally, "0" in the first sequence in the following tables can be replaced with "1", and at the same time, "1" can be replaced with "-1".

[0321] The first signal generated based on the first sequence listed in Table 7, when using the first signal for timing synchronization estimation and / or RSRP / RSRQ measurement, significantly improves the accuracy of timing synchronization estimation and / or the accuracy of RSRP / RSRQ measurement. When selecting 4 of the sequences as the first sequence, it is preferable to select 4 first sequences with indexes 1, 2, 3, and 4.

[0322] Table 7 A schematic table of a first sequence provided by the embodiments of the present application

[0323]

[0324]

[0325] When four of these sequences are selected as the first sequence, the preferred sequence combinations are at least one of the following. Among these four sequences, there are low cross-correlation values. Table 8 is another schematic table of sequence combinations provided by the embodiments of the present application. The selected sequences are shown in Table 8.

[0326] When the receiving end performs timing synchronization estimation and / or RSRP / RSRQ measurement by receiving and detecting the first signal, the receiving end will convert the first sequence saved locally into a third sequence, where the third sequence is generated according to at least one of the following operations:

[0327] Y = 2X - 1, where X is an element in the first sequence and Y is the corresponding element in the third sequence;

[0328] Y = 1 - 2X, where X is an element in the first sequence and Y is the corresponding element in the third sequence;

[0329] The elements that are "0" in the first sequence remain unchanged, and then the elements that are "0" in the first sequence are converted to "-1", and then the third sequence is generated.

[0330] Then, when the receiving end detects the first sequence through sequence correlation, the local sequence used by the receiving end is the third sequence.

[0331] Table 8 Another schematic table of sequence combinations provided by the embodiments of the present application

[0332]

[0333]

[0334] In an example, when there is M = 1 OOK symbol in one OFDM symbol, that is, the transmission format of the first signal is OOK, M = 1. The length of the first sequence carried by the first signal is 6, occupying 6 OFDM symbols, that is, a total of 6 OOK symbols are occupied. Table 9 is a schematic table of a first sequence provided by the embodiments of the present application. The first sequences are as shown in Table 9 below, where each row represents a first sequence. In addition, the "0", "1", and "-1" in the following table can be replaced with each other.

[0335] Optionally, the "0" in the first sequence in the following tables can be replaced with "-1".

[0336] Optionally, the "-1" in the first sequence in the following tables can be replaced with "0".

[0337] Optionally, "0" in the first sequence in the following tables can be replaced by "1", and at the same time, "1" can be replaced by "-1".

[0338] Table 9 Schematic table of a first sequence provided by an embodiment of the present application

[0339]

[0340]

[0341] The first signal generated based on the first sequence listed in the above table, when using the first signal for timing synchronization estimation and / or RSRP / RSRQ measurement, significantly improves the accuracy of timing synchronization estimation and / or the accuracy of RSRP / RSRQ measurement. When selecting 4 sequences as the first sequence, it is preferred to select 4 first sequences with indexes 1, 2, 3, and 4.

[0342] When selecting 4 sequences as the first sequence, the preferred sequence combinations are at least one of the following. Among them, the 4 sequences have a low cross-correlation value. Table 10 is another schematic table of sequence combinations provided by an embodiment of the present application. The selected sequences are shown in Table 10.

[0343] Table 10 Another schematic table of sequence combinations provided by an embodiment of the present application

[0344]

[0345]

[0346] In one example, when there is M = 1 OOK symbol in 1 OFDM symbol, that is, the transmission format of the first signal is OOK, M = 1. The length of the first sequence carried by the first signal is 6, occupying 6 OFDM symbols, that is, a total of 6 OOK symbols are occupied. Table 11 is a schematic table of a first sequence provided by an embodiment of the present application. The first sequence is as shown in Table 11 below, where each row represents a first sequence. In addition, "0", "1", and "-1" in the following table can be replaced with each other.

[0347] Optionally, "0" in the first sequence in the following tables can be replaced by "-1".

[0348] Optionally, "-1" in the first sequence in the following tables can be replaced by "0".

[0349] Optionally, "0" in the first sequence in the following tables can be replaced by "1", and at the same time, "1" can be replaced by "-1".

[0350] The first signal generated based on the first sequence listed in Table 11 can significantly improve the accuracy of timing synchronization estimation and / or RSRP / RSRQ measurement when using the first signal for timing synchronization estimation and / or RSRP / RSRQ measurement. When selecting 4 sequences as the first sequence, it is preferable to select 4 first sequences with indexes 1, 2, 3, and 4.

[0351] Table 11 is a schematic table of a first sequence provided by an embodiment of the present application.

[0352]

[0353] When selecting 4 sequences as the first sequence, the preferable sequence combinations are at least one of the following. The 4 sequences have low cross-correlation values. Table 12 is another schematic table of sequence combinations provided by an embodiment of the present application. The selected sequences are shown in Table 12.

[0354] Table 12 Another schematic table of sequence combinations provided by an embodiment of the present application

[0355]

[0356]

[0357] When the receiving end performs timing synchronization estimation and / or RSRP / RSRQ measurement by receiving and detecting the first signal, the receiving end will convert the first sequence locally saved into a third sequence, where the third sequence is generated according to at least one of the following operations:

[0358] Y = 2X - 1, where X is an element in the first sequence and Y is an element in the corresponding third sequence;

[0359] Y = 1 - 2X, where X is an element in the first sequence and Y is an element in the corresponding third sequence;

[0360] The elements in the first sequence that are "0" remain unchanged, and then the elements in the first sequence that are "0" are converted to "-1" to generate the third sequence.

[0361] Then, when the receiving end detects the first sequence through sequence correlation, the local sequence used by the receiving end is the third sequence.

[0362] In one example, when there is M = 1 OOK symbol in one OFDM symbol, that is, the transmission format of the first signal is OOK and M = 1. The length of the first sequence carried by the first signal is 6, occupying 6 OFDM symbols, that is, a total of 6 OOK symbols are occupied. Table 13 is a schematic table of a first sequence provided by an embodiment of the present application. The first sequence is as shown in Table 13 below, where each row represents a first sequence. In addition, "0", "1", and "-1" in the following table can be replaced with each other.

[0363] Optionally, "0" in the first sequence in each of the following tables can be replaced with "-1".

[0364] Optionally, "-1" in the first sequence in each of the following tables can be replaced with "0".

[0365] Optionally, "0" in the first sequence in each of the following tables can be replaced with "1", and at the same time, "1" can be replaced with "-1".

[0366] When generating the first signal based on the first sequence listed in Table 13 and using the first signal for timing synchronization estimation and / or RSRP / RSRQ measurement, the accuracy of timing synchronization estimation and / or the accuracy of RSRP / RSRQ measurement are significantly improved. When selecting 4 sequences as the first sequence, it is preferable to select 4 first sequences with indexes 1, 2, 3, and 4.

[0367] Table 13 Schematic table of a first sequence provided by an embodiment of the present application

[0368]

[0369]

[0370] When selecting 4 sequences as the first sequence, the preferred sequence combinations are at least one of the following. Among them, the 4 sequences have a low cross-correlation value. Table 14 is another schematic table of sequence combinations provided by an embodiment of the present application. The selected sequences are shown in Table 14.

[0371] Table 14 Another schematic table of sequence combinations provided by an embodiment of the present application

[0372]

[0373]

[0374] In one example, when there is M = 1 OOK symbol in one OFDM symbol, that is, the transmission format of the first signal is OOK, M = 1. The length of the first sequence carried by the first signal is 8, occupying 8 OFDM symbols, that is, a total of 8 OOK symbols are occupied. Table 15 is a schematic table of a first sequence provided by an embodiment of the present application. The first sequence is as shown in Table 15 below, where each row represents a first sequence. In addition, "0", "1", and "-1" in the following table can be replaced with each other.

[0375] Optionally, "0" in the first sequence in the following tables can be replaced with "-1".

[0376] Optionally, "-1" in the first sequence in the following tables can be replaced with "0".

[0377] Optionally, "0" in the first sequence in the following tables can be replaced with "1", and at the same time, "1" can be replaced with "-1".

[0378] Table 15 Schematic table of a first sequence provided by an embodiment of the present application

[0379]

[0380]

[0381] When generating the first signal based on the first sequence listed in the above table and using the first signal for timing synchronization estimation and / or RSRP / RSRQ measurement, the accuracy of timing synchronization estimation and / or the accuracy of RSRP / RSRQ measurement are significantly improved. When selecting 4 of the sequences as the first sequence, it is preferable to select 4 first sequences with indexes 1, 2, 3, and 4.

[0382] When selecting 4 of the sequences as the first sequence, the preferred sequence combinations are at least one of the following. Among them, the 4 sequences have a low cross-correlation value. Table 16 is another schematic table of sequence combinations provided by an embodiment of the present application. The selected sequences are shown in Table 16.

[0383] Table 16 Another schematic table of sequence combinations provided by an embodiment of the present application

[0384]

[0385]

[0386] When the receiving end performs timing synchronization estimation and / or RSRP / RSRQ measurement by receiving and detecting the first signal, the receiving end will convert the first sequence saved locally into a third sequence, where the third sequence is generated according to at least one of the following operations:

[0387] Y = 2X - 1, where X is an element in the first sequence and Y is the corresponding element in the third sequence;

[0388] Y = 1 - 2X, where X is an element in the first sequence and Y is the corresponding element in the third sequence;

[0389] The elements in the first sequence that are "0" remain unchanged, and then the elements in the first sequence that are "0" are converted to "-1", thereby generating the third sequence.

[0390] Then, when the receiving end detects the first sequence through sequence correlation, the local sequence used by the receiving end is the third sequence.

[0391] In an example, when there is M = 1 OOK symbol in one OFDM symbol, that is, the transmission format of the first signal is OOK and M = 1. The length of the first sequence carried by the first signal is 8, occupying 8 OFDM symbols, that is, a total of 8 OOK symbols are occupied. Table 17 is a schematic table of a first sequence provided by an embodiment of the present application. The first sequence is as shown in Table 17 below, where each row represents a first sequence. In addition, "0", "1", and "-1" in the following table can be replaced with each other.

[0392] Optionally, "0" in the first sequence in the following tables can be replaced with "-1".

[0393] Optionally, "-1" in the first sequence in the following tables can be replaced with "0".

[0394] Optionally, "0" in the first sequence in the following tables can be replaced with "1", and at the same time, "1" can be replaced with "-1".

[0395] Table 17 Schematic table of a first sequence provided by an embodiment of the present application

[0396]

[0397]

[0398] For the first signal generated based on the first sequence listed in the above table, when using the first signal for timing synchronization estimation and / or RSRP / RSRQ measurement, the accuracy of timing synchronization estimation and / or RSRP / RSRQ measurement is significantly improved. When selecting 4 sequences as the first sequence, it is preferred to select 4 first sequences with indexes 1, 2, 3, and 4.

[0399] When selecting 4 of these sequences as the first sequence, the preferred sequence combinations are at least one of the following. Among them, the 4 sequences have low cross-correlation values. Table 18 is another schematic table of sequence combinations provided by the embodiments of the present application. The selected sequences are shown in Table 18.

[0400] Table 18 Another schematic table of sequence combinations provided by the embodiments of the present application

[0401]

[0402] In one example, when there is M = 1 OOK symbol in 1 OFDM symbol, that is, the transmission format of the first signal is OOK and M = 1. The length of the first sequence carried by the first signal is 8, occupying 8 OFDM symbols, that is, a total of 8 OOK symbols are occupied. Table 19 is a schematic table of a first sequence provided by the embodiments of the present application. The first sequences are as shown in Table 19 below, where each row represents a first sequence. In addition, "0", "1", and "-1" in the following table can be replaced with each other.

[0403] Optionally, "0" in the first sequences in the following tables can be replaced with "-1".

[0404] Optionally, "-1" in the first sequences in the following tables can be replaced with "0".

[0405] Optionally, "0" in the first sequences in the following tables can be replaced with "1", and at the same time, "1" can be replaced with "-1".

[0406] Table 19 A schematic table of a first sequence provided by the embodiments of the present application

[0407]

[0408] For the first signal generated based on the first sequences listed in the above table, when using the first signal for timing synchronization estimation and / or RSRP / RSRQ measurement, the accuracy of timing synchronization estimation and / or the accuracy of RSRP / RSRQ measurement are significantly improved. When selecting 4 of these sequences as the first sequence, the preferred 4 first sequences are those with indexes 1, 2, 3, and 4.

[0409] When selecting 4 of these sequences as the first sequence, the preferred sequence combinations are at least one of the following. Among them, the 4 sequences have low cross-correlation values. Table 20 is another schematic table of sequence combinations provided by the embodiments of the present application. The selected sequences are shown in Table 20.

[0410] Table 20 Another schematic table of sequence combinations provided by the embodiments of the present application

[0411]

[0412] When the receiving end performs timing synchronization estimation and / or RSRP / RSRQ measurement by receiving and detecting the first signal, the receiving end will convert the first sequence saved locally into a third sequence, where the third sequence is generated according to at least one of the following operations:

[0413] Y = 2X - 1, where X is an element in the first sequence and Y is an element in the corresponding third sequence;

[0414] Y = 1 - 2X, where X is an element in the first sequence and Y is an element in the corresponding third sequence;

[0415] The elements in the first sequence that are "0" remain unchanged, and then the elements in the first sequence that are "0" are converted to "-1", and then a third sequence is generated.

[0416] Then, when the receiving end detects the first sequence through sequence correlation, the local sequence used by the receiving end is the third sequence.

[0417] In one example, when there is M = 1 OOK symbol in 1 OFDM symbol, that is, the transmission format of the first signal is OOK, M = 1. The length of the first sequence carried by the first signal is 8, occupying 8 OFDM symbols, that is, a total of 8 OOK symbols are occupied. Table 21 is a schematic table of a first sequence provided by an embodiment of the present application. The first sequence is as shown in Table 21 below, where each row represents a first sequence. In addition, "0", "1", and "-1" in the following table can be replaced with each other.

[0418] Optionally, "0" in the first sequence in the following tables can be replaced with "-1".

[0419] Optionally, "-1" in the first sequence in the following tables can be replaced with "0".

[0420] Optionally, "0" in the first sequence in the following tables can be replaced with "1", and at the same time, "1" can be replaced with "-1".

[0421] Table 21 Schematic table of a first sequence provided by an embodiment of the present application

[0422]

[0423]

[0424] The first signal generated based on the first sequence listed in the above table can significantly improve the accuracy of timing synchronization estimation and / or RSRP / RSRQ measurement when using the first signal for timing synchronization estimation and / or RSRP / RSRQ measurement. When selecting 4 of the sequences as the first sequence, preferably the 4 first sequences with indexes 1, 2, 3, and 4 are selected.

[0425] When selecting 4 of the sequences as the first sequence, the preferred sequence combinations are at least one of the following. There is a low cross-correlation value among the 4 sequences. Table 22 is another schematic table of sequence combinations provided by the embodiments of the present application. The selected sequences are shown in Table 22.

[0426] Table 22 Another schematic table of sequence combinations provided by the embodiments of the present application

[0427]

[0428]

[0429] In one example, when there is M = 1 OOK symbol in 1 OFDM symbol, that is, the transmission format of the first signal is OOK, M = 1. The length of the first sequence carried by the first signal is 8, occupying 8 OFDM symbols, that is, a total of 8 OOK symbols are occupied. Table 23 is a schematic table of a first sequence provided by the embodiments of the present application. The first sequences are as shown in Table 23 below, where each row represents a first sequence. In addition, "0", "1", and "-1" in the following table can be replaced with each other.

[0430] Optionally, "0" in the first sequence in the following tables can be replaced with "-1".

[0431] Optionally, "-1" in the first sequence in the following tables can be replaced with "0".

[0432] Optionally, "0" in the first sequence in the following tables can be replaced with "1", and at the same time, "1" can be replaced with "-1".

[0433] Table 23 A schematic table of a first sequence provided by the embodiments of the present application

[0434]

[0435] The first signal generated based on the first sequence listed in the above table can significantly improve the accuracy of timing synchronization estimation and / or RSRP / RSRQ measurement when using the first signal for timing synchronization estimation and / or RSRP / RSRQ measurement. When selecting 4 of the sequences as the first sequence, preferably the 4 first sequences with indexes 1, 2, 3, and 4 are selected.

[0436] When selecting 4 of these sequences as the first sequence, the preferred sequence combinations are at least one of the following. Among them, the 4 sequences have low cross-correlation values. Table 24 is another schematic table of sequence combinations provided by the embodiments of the present application. The selected sequences are shown in Table 24.

[0437] Table 24 Another schematic table of sequence combinations provided by the embodiments of the present application

[0438]

[0439] When the receiving end performs timing synchronization estimation and / or RSRP / RSRQ measurement by receiving and detecting the first signal, the receiving end will convert the first sequence saved locally into a third sequence, where the third sequence is generated according to at least one of the following operations:

[0440] Y = 2X - 1, where X is an element in the first sequence and Y is an element in the corresponding third sequence;

[0441] Y = 1 - 2X, where X is an element in the first sequence and Y is an element in the corresponding third sequence;

[0442] The elements in the first sequence that are "0" remain unchanged, and then the elements in the first sequence that are "0" are converted to "-1", and then the third sequence is generated.

[0443] Then, when the receiving end detects the first sequence through sequence correlation, the local sequence used by the receiving end is the third sequence.

[0444] In one example, when there is M = 1 OOK symbol in 1 OFDM symbol, that is, the transmission format of the first signal is OOK, M = 1. The length of the first sequence carried by the first signal is 6, occupying 6 OFDM symbols, that is, a total of 6 OOK symbols are occupied. Table 25 is a schematic table of a first sequence provided by the embodiments of the present application. The first sequences are as shown in Table 25 below, where each row represents a first sequence. In addition, the "0", "1", and "-1" in the following table can be replaced with each other.

[0445] Optionally, the "0" in the first sequence in the following tables can be replaced with "-1".

[0446] Optionally, the "-1" in the first sequence in the following tables can be replaced with "0".

[0447] Optionally, the "0" in the first sequence in the following tables can be replaced with "1", and at the same time, the "1" can be replaced with "-1".

[0448] Table 25 Schematic table of a first sequence provided by an embodiment of the present application

[0449]

[0450]

[0451] The first signal generated based on the first sequence listed in the above table, when using the first signal for timing synchronization estimation and / or RSRP / RSRQ measurement, significantly improves the accuracy of timing synchronization estimation and / or the accuracy of RSRP / RSRQ measurement. When selecting 4 sequences as the first sequence, it is preferred to select 4 first sequences with indexes 1, 2, 3, and 4.

[0452] When selecting 4 sequences as the first sequence, the preferred sequence combinations are at least one of the following. Among them, the 4 sequences have a low cross-correlation value. Table 26 is another schematic table of sequence combinations provided by an embodiment of the present application. The selected sequences are shown in Table 26.

[0453] Table 26 Another schematic table of sequence combinations provided by an embodiment of the present application

[0454]

[0455] In one example, when 1 OFDM symbol includes M = 1 OOK symbol, that is, the transmission format of the first signal is OOK, M = 1. The length of the first sequence carried by the first signal is 6, occupying 6 OFDM symbols, that is, a total of 6 OOK symbols are occupied. Table 27 is a schematic table of a first sequence provided by an embodiment of the present application. The first sequence is as shown in Table 27 below, where each row represents a first sequence. In addition, "0", "1", and "-1" in the following table can be replaced with each other.

[0456] Optionally, "0" in the first sequence in the following tables can be replaced with "-1".

[0457] Optionally, "-1" in the first sequence in the following tables can be replaced with "0".

[0458] Optionally, "0" in the first sequence in the following tables can be replaced with "1", and at the same time, "1" can be replaced with "-1".

[0459] Table 27 Schematic table of a first sequence provided by an embodiment of the present application

[0460]

[0461] The first signal generated based on the first sequence listed in the above table can significantly improve the timing synchronization estimation accuracy and / or RSRP / RSRQ measurement accuracy when using the first signal for timing synchronization estimation and / or RSRP / RSRQ measurement. When selecting 4 sequences as the first sequence, it is preferred to select 4 first sequences with indexes 1, 2, 3, and 4.

[0462] When selecting 4 sequences as the first sequence, the preferred sequence combinations are at least one of the following. Among them, the 4 sequences have low cross-correlation values. Table 28 is another schematic table of sequence combinations provided by the embodiments of the present application. The selected sequences are shown in Table 28.

[0463] Table 28 Another schematic table of sequence combinations provided by the embodiments of the present application

[0464]

[0465] When the receiving end performs timing synchronization estimation and / or RSRP / RSRQ measurement by receiving and detecting the first signal, the receiving end will convert the first sequence locally saved into a third sequence, where the third sequence is generated according to at least one of the following operations:

[0466] Y = 2X - 1, where X is an element in the first sequence and Y is an element in the corresponding third sequence;

[0467] Y = 1 - 2X, where X is an element in the first sequence and Y is an element in the corresponding third sequence;

[0468] The elements in the first sequence that are "0" remain unchanged, and then the elements in the first sequence that are "0" are converted to "-1" to generate the third sequence.

[0469] Then, when the receiving end detects the first sequence through sequence correlation, the local sequence used by the receiving end is the third sequence.

[0470] In one example, when there is M = 1 OOK symbol in 1 OFDM symbol, that is, the transmission format of the first signal is OOK, M = 1. The length of the first sequence carried by the first signal is 6, occupying 6 OFDM symbols, that is, a total of 6 OOK symbols are occupied. Table 29 is a schematic table of a first sequence provided by the embodiments of the present application. The first sequences are as shown in Table 29 below, where each row represents a first sequence. In addition, the "0", "1", and "-1" in the following table can be replaced with each other.

[0471] Optionally, the "0" in the first sequence in each of the following tables can be replaced with "-1".

[0472] Optionally, "-1" in the first sequence in the following tables can be replaced by "0".

[0473] Optionally, "0" in the first sequence in the following tables can be replaced by "1", and at the same time, "1" can be replaced by "-1".

[0474] Table 29 Schematic table of a first sequence provided by an embodiment of the present application

[0475]

[0476] Based on the first sequence listed in the above table, when generating the first signal and using the first signal for timing synchronization estimation and / or RSRP / RSRQ measurement, the accuracy of timing synchronization estimation and / or RSRP / RSRQ measurement is significantly improved. When selecting 4 sequences as the first sequence, it is preferable to select 4 first sequences with indexes 1, 2, 3, and 4.

[0477] When selecting 4 sequences as the first sequence, the preferred sequence combinations are at least one of the following. Among them, the 4 sequences have a low cross-correlation value. Table 30 is another schematic table of sequence combinations provided by an embodiment of the present application. The selected sequences are shown in Table 30.

[0478] Table 30 Another schematic table of sequence combinations provided by an embodiment of the present application

[0479]

[0480] In one example, when there are M = 2 OOK symbols in 1 OFDM symbol, that is, the transmission format of the first signal is OOK, M = 2. The length of the first sequence carried by the first signal is 8, occupying 4 OFDM symbols, that is, a total of 8 OOK symbols are occupied. Table 31 is a schematic table of a first sequence provided by an embodiment of the present application. The first sequence is as shown in Table 31 below, where each row represents a first sequence. In addition, "0", "1", and "-1" in the following table can be replaced with each other.

[0481] Optionally, "0" in the first sequence in the following tables can be replaced by "-1".

[0482] Optionally, "0" in the first sequence in the following tables can be replaced by "1", and at the same time, "1" can be replaced by "-1".

[0483] For the first sequence with a length of 8, 1 "1", 1 "0" or "-1" is sent among M = 2 OOK symbols, as shown in Table 1.

[0484] Table 31 Schematic table of a first sequence provided by an embodiment of the present application

[0485]

[0486]

[0487] The first signal generated based on the first sequence listed in the above table, when using the first signal for timing synchronization estimation and / or RSRP / RSRQ measurement, significantly improves the accuracy of timing synchronization estimation and / or the accuracy of RSRP / RSRQ measurement. When selecting 4 of the sequences as the first sequence, preferably select 4 first sequences with indexes 1, 2, 3, and 4.

[0488] When the receiving end performs timing synchronization estimation and / or RSRP / RSRQ measurement by receiving and detecting the first signal, the receiving end will convert the first sequence locally stored into a third sequence, where the third sequence is generated according to at least one of the following operations:

[0489] Y = 2X - 1, where X is an element in the first sequence and Y is an element in the corresponding third sequence;

[0490] Y = 1 - 2X, where X is an element in the first sequence and Y is an element in the corresponding third sequence;

[0491] The elements in the first sequence that are "0" remain unchanged, and then the elements in the first sequence that are "0" are converted to "-1" to generate the third sequence.

[0492] Then, when the receiving end detects the first sequence through sequence correlation, the local sequence used by the receiving end is the third sequence.

[0493] When selecting 4 of the sequences as the first sequence, the preferred sequence combinations are at least one of the following. Among them, the 4 sequences have a low cross-correlation value. Table 32 is another sequence combination schematic table provided by the embodiments of the present application. The selected sequences are shown in Table 32.

[0494] Table 32 Another sequence combination schematic table provided by the embodiments of the present application

[0495]

[0496] In one example, when there are M = 2 OOK symbols in one OFDM symbol, that is, the transmission format of the first signal is OOK, M = 2. The length of the first sequence carried by the first signal is 8, occupying 4 OFDM symbols, that is, a total of 8 OOK symbols are occupied. Table 33 is a schematic table of a first sequence provided by an embodiment of the present application. The first sequence is as shown in Table 33 below, where each row represents a first sequence. In addition, "0", "1", and "-1" in the following table can be replaced with each other.

[0497] Optionally, "0" in the first sequence in each of the following tables can be replaced with "-1".

[0498] Optionally, "0" in the first sequence in each of the following tables can be replaced with "1", and at the same time, "1" can be replaced with "-1".

[0499] For the first sequence with a length of 8, 1 "1", 1 "0", or "-1" is sent in M = 2 OOK symbols.

[0500] Table 33 Schematic table of a first sequence provided by an embodiment of the present application

[0501]

[0502]

[0503] When generating the first signal based on the first sequence listed in the above table and using the first signal for timing synchronization estimation and / or RSRP / RSRQ measurement, the accuracy of timing synchronization estimation and / or the accuracy of RSRP / RSRQ measurement are significantly improved. When selecting 4 sequences as the first sequence, it is preferable to select 4 first sequences with indexes 1, 2, 3, and 4.

[0504] When selecting 4 sequences as the first sequence, the preferred sequence combinations are at least one of the following. Among them, the 4 sequences have a low cross-correlation value. Table 34 is another schematic table of sequence combinations provided by an embodiment of the present application. The selected sequences are shown in Table 34.

[0505] Table 34 Another schematic table of sequence combinations provided by an embodiment of the present application

[0506]

[0507] In one example, when there are M = 2 OOK symbols in one OFDM symbol, that is, the transmission format of the first signal is OOK and M = 2. The length of the first sequence carried by the first signal is 8, occupying 4 OFDM symbols, that is, a total of 8 OOK symbols are occupied. Table 35 is a schematic table of a first sequence provided by an embodiment of the present application. The first sequence is as shown in Table 35 below, where each row represents a first sequence. In addition, "0", "1", and "-1" in the following table can be replaced with each other.

[0508] Optionally, "0" in the first sequence in each of the following tables can be replaced with "-1".

[0509] Optionally, "0" in the first sequence in each of the following tables can be replaced with "1", and at the same time, "1" can be replaced with "-1".

[0510] For the first sequence with a length of 8, 1 "1", 1 "0", or "-1" is sent in M = 2 OOK symbols.

[0511] Table 35 Schematic table of a first sequence provided by an embodiment of the present application

[0512]

[0513] When generating the first signal based on the first sequence listed in the above table and using the first signal for timing synchronization estimation and / or RSRP / RSRQ measurement, the accuracy of timing synchronization estimation and / or the accuracy of RSRP / RSRQ measurement are significantly improved. When selecting 4 sequences as the first sequence, it is preferably the 4 first sequences with indexes 1, 2, 3, and 4.

[0514] When selecting 4 sequences as the first sequence, the preferred sequence combination is at least one of the following. Among them, the 4 sequences have a low cross-correlation value. Table 36 is another schematic table of sequence combinations provided by an embodiment of the present application. The selected sequences are shown in Table 36.

[0515] Table 36 Another schematic table of sequence combinations provided by an embodiment of the present application

[0516]

[0517] In one example, when there are M = 2 OOK symbols in one OFDM symbol, that is, the transmission format of the first signal is OOK and M = 2. The length of the first sequence carried by the first signal is 12, occupying 6 OFDM symbols, that is, a total of 12 OOK symbols are occupied. Table 37 is a schematic table of a first sequence provided by an embodiment of the present application. The first sequence is as shown in Table 37 below, where each row represents a first sequence. In addition, "0", "1", and "-1" in the following table can be replaced with each other.

[0518] Optionally, "0" in the first sequence in the following tables can be replaced with "-1".

[0519] Optionally, "0" in the first sequence in the following tables can be replaced with "1", and at the same time, "1" can be replaced with "-1".

[0520] For the first sequence with a length of 12, 1 "1", 1 "0" or "-1" is sent in M = 2 OOK symbols.

[0521] Table 37 Schematic table of a first sequence provided by an embodiment of the present application

[0522]

[0523]

[0524]

[0525] When the first signal is generated based on the first sequence listed in the above table and the first signal is used for timing synchronization estimation and / or RSRP / RSRQ measurement, the accuracy of timing synchronization estimation and / or RSRP / RSRQ measurement is significantly improved. When 4 sequences are selected as the first sequence, it is preferable to select 4 first sequences with indexes 1, 2, 3, and 4.

[0526] When the receiving end performs timing synchronization estimation and / or RSRP / RSRQ measurement by receiving and detecting the first signal, the receiving end will convert the first sequence saved locally into a third sequence, where the third sequence is generated according to at least one of the following operations:

[0527] Y = 2X - 1, where X is an element in the first sequence and Y is an element in the corresponding third sequence;

[0528] Y = 1 - 2X, where X is an element in the first sequence and Y is an element in the corresponding third sequence;

[0529] The elements that are "0" in the first sequence remain unchanged, and then the elements that are "0" in the first sequence are converted to "-1", thereby generating a third sequence.

[0530] Then, when the receiving end detects the first sequence through sequence correlation, the local sequence used by the receiving end is the third sequence.

[0531] When selecting 4 of the sequences as the first sequence, the preferred sequence combinations are at least one of the following. Among them, the 4 sequences have low cross-correlation values. Table 38 is another schematic table of sequence combinations provided by the embodiments of the present application. The selected sequences are shown in Table 38.

[0532] Table 38 Another schematic table of sequence combinations provided by the embodiments of the present application

[0533]

[0534]

[0535]

[0536] In one example, when there are M = 2 OOK symbols in 1 OFDM symbol, that is, the transmission format of the first signal is OOK and M = 2. The length of the first sequence carried by the first signal is 12, occupying 6 OFDM symbols, that is, a total of 12 OOK symbols are occupied. Table 39 is a schematic table of a first sequence provided by the embodiments of the present application. The first sequences are as shown in Table 39 below, where each row represents a first sequence. In addition, the "0", "1", and "-1" in the following table can be replaced with each other.

[0537] Optionally, the "0" in the first sequence in the following tables can be replaced with "-1".

[0538] Optionally, the "0" in the first sequence in the following tables can be replaced with "1", and at the same time, the "1" can be replaced with "-1".

[0539] For the first sequence with a length of 12, 1 "1", 1 "0" or "-1" is sent in the M = 2 OOK symbols, as shown in Table 39.

[0540] Table 39 A schematic table of a first sequence provided by the embodiments of the present application

[0541]

[0542]

[0543]

[0544] The first signal generated based on the first sequence listed in the above table can significantly improve the accuracy of timing synchronization estimation and / or RSRP / RSRQ measurement when using the first signal for timing synchronization estimation and / or RSRP / RSRQ measurement. When selecting 4 of the sequences as the first sequence, preferably the 4 first sequences with indexes 1, 2, 3, and 4 are selected.

[0545] When selecting 4 of the sequences as the first sequence, the preferred sequence combinations are at least one of the following. There is a low cross-correlation value among the 4 sequences. Table 40 is another schematic table of sequence combinations provided by the embodiments of the present application. The selected sequences are shown in Table 40.

[0546] Table 40 Another schematic table of sequence combinations provided by the embodiments of the present application

[0547]

[0548] In one example, when there are M = 2 OOK symbols in 1 OFDM symbol, that is, the transmission format of the first signal is OOK and M = 2. The length of the first sequence carried by the first signal is 12, occupying 6 OFDM symbols, that is, a total of 12 OOK symbols are occupied. Table 41 is a schematic table of a first sequence provided by the embodiments of the present application. The first sequences are as shown in Table 41 below, where each row represents a first sequence. In addition, the "0", "1", and "-1" in the following table can be replaced with each other.

[0549] Optionally, the "0" in the first sequence in each of the following tables can be replaced with "-1".

[0550] Optionally, the "0" in the first sequence in each of the following tables can be replaced with "1", and at the same time, the "1" can be replaced with "-1".

[0551] For the first sequence with a length of 12, 1 "1", 1 "0" or "-1" is sent among the M = 2 OOK symbols, as shown in Table 41.

[0552] Table 41 A schematic table of a first sequence provided by the embodiments of the present application

[0553]

[0554] The first signal generated based on the first sequence listed in the above table can significantly improve the accuracy of timing synchronization estimation and / or RSRP / RSRQ measurement when using the first signal for timing synchronization estimation and / or RSRP / RSRQ measurement. When selecting 4 of the sequences as the first sequence, preferably the 4 first sequences with indexes 1, 2, 3, and 4 are selected.

[0555] When selecting 4 of the sequences as the first sequence, the preferred sequence combinations are at least one of the following. Among these 4 sequences, there are low cross-correlation values. Table 42 is another schematic table of sequence combinations provided by the embodiments of the present application. The selected sequences are shown in Table 42.

[0556] Table 42 Another schematic table of sequence combinations provided by the embodiments of the present application

[0557]

[0558] In one example, when there are M = 2 OOK symbols in one OFDM symbol, that is, the transmission format of the first signal is OOK and M = 2. The length of the first sequence carried by the first signal is 16, occupying 8 OFDM symbols, that is, a total of 16 OOK symbols are occupied. Table 43 is a schematic table of a first sequence provided by the embodiments of the present application. The first sequences are as shown in Table 43 below, where each row represents a first sequence. In addition, the "0", "1", and "-1" in the following table can be replaced with each other.

[0559] Optionally, the "0" in the first sequence in each of the following tables can be replaced with "-1".

[0560] Optionally, the "0" in the first sequence in each of the following tables can be replaced with "1", and at the same time, the "1" can be replaced with "-1".

[0561] For the first sequence with a length of 16, 1 "1", 1 "0", or "-1" is sent among the M = 2 OOK symbols.

[0562] Table 43 A schematic table of a first sequence provided by the embodiments of the present application

[0563]

[0564]

[0565] When using the first signal generated based on the first sequences listed in the above table for timing synchronization estimation and / or RSRP / RSRQ measurement, the accuracy of timing synchronization estimation and / or the accuracy of RSRP / RSRQ measurement are significantly improved. When selecting 4 of the sequences as the first sequence, the preferred 4 first sequences are those with indexes 1, 2, 3, and 4.

[0566] When the receiving end performs timing synchronization estimation and / or RSRP / RSRQ measurement by receiving and detecting the first signal, the receiving end will convert the first sequence locally saved into a third sequence, where the third sequence is generated according to at least one of the following operations:

[0567] Y = 2X - 1, where X is an element in the first sequence and Y is the corresponding element in the third sequence;

[0568] Y = 1 - 2X, where X is an element in the first sequence and Y is the corresponding element in the third sequence;

[0569] The elements in the first sequence that are "0" remain unchanged, and then the elements in the first sequence that are "0" are converted to "-1" to generate the third sequence.

[0570] Then, when the receiving end detects the first sequence through sequence correlation, the local sequence used by the receiving end is the third sequence.

[0571] When selecting 4 of the sequences as the first sequence, the preferred sequence combinations are at least one of the following. Among the 4 sequences, there is a low cross - correlation value. Table 44 is another schematic table of sequence combinations provided by the embodiments of the present application. The selected sequences are shown in Table 44.

[0572] Table 44 Another schematic table of sequence combinations provided by the embodiments of the present application

[0573]

[0574]

[0575] In one example, when there are M = 2 OOK symbols in one OFDM symbol, that is, the transmission format of the first signal is OOK and M = 2. The length of the first sequence carried by the first signal is 16, occupying 8 OFDM symbols, that is, a total of 16 OOK symbols are occupied. Table 45 is a schematic table of a first sequence provided by the embodiments of the present application. The first sequence is as shown in Table 45 below, where each row represents a first sequence. Additionally, the "0", "1", and "-1" in the following table can be replaced with each other.

[0576] Optionally, the "0" in the first sequence in the following tables can be replaced with "-1".

[0577] Optionally, the "0" in the first sequence in the following tables can be replaced with "1", and at the same time, the "1" can be replaced with "-1".

[0578] For the first sequence with a length of 16, among the M = 2 OOK symbols, 1 "1", 1 "0" or "-1" is sent.

[0579] Table 45 A schematic table of a first sequence provided by the embodiments of the present application

[0580]

[0581]

[0582]

[0583] The first signal generated based on the first sequence listed in the above table, when using the first signal for timing synchronization estimation and / or RSRP / RSRQ measurement, significantly improves the accuracy of timing synchronization estimation and / or RSRP / RSRQ measurement. When selecting 4 sequences as the first sequence, preferably the 4 first sequences with indexes 1, 2, 3, and 4 are selected.

[0584] When selecting 4 sequences as the first sequence, the preferred sequence combinations are at least one of the following. Among the 4 sequences, there are low cross-correlation values. Table 46 is another schematic table of sequence combinations provided by the embodiments of the present application. The selected sequences are shown in Table 46.

[0585] Table 46 Another schematic table of sequence combinations provided by the embodiments of the present application

[0586]

[0587]

[0588] In one example, when there are M = 2 OOK symbols in 1 OFDM symbol, that is, the transmission format of the first signal is OOK, M = 2. The length of the first sequence carried by the first signal is 16, occupying 8 OFDM symbols, that is, a total of 16 OOK symbols are occupied. Table 47 is a schematic table of a first sequence provided by the embodiments of the present application. The first sequences are as shown in Table 47 below, where each row represents a first sequence. In addition, the "0", "1", and "-1" in the following table can be replaced with each other.

[0589] Optionally, the "0" in the first sequence in the following tables can be replaced with "-1".

[0590] Optionally, the "0" in the first sequence in the following tables can be replaced with "1", and at the same time, the "1" can be replaced with "-1".

[0591] For the first sequence with a length of 16, 1 "1", 1 "0" or "-1" is sent in the M = 2 OOK symbols.

[0592] Table 47 A schematic table of a first sequence provided by the embodiments of the present application

[0593]

[0594] The first signal generated based on the first sequence listed in the above table significantly improves the timing synchronization estimation accuracy and / or RSRP / RSRQ measurement accuracy when using the first signal for timing synchronization estimation and / or RSRP / RSRQ measurement. When selecting 4 sequences as the first sequence, it is preferable to select 4 first sequences with indexes 1, 2, 3, and 4.

[0595] When selecting 4 sequences as the first sequence, the preferred sequence combinations are at least one of the following. Among the 4 sequences, there are low cross-correlation values. Table 48 is another schematic table of sequence combinations provided by the embodiments of the present application. The selected sequences are shown in Table 48.

[0596] Table 48 Another schematic table of sequence combinations provided by the embodiments of the present application

[0597]

[0598] In one example, when there are M = 4 OOK symbols in 1 OFDM symbol, that is, the transmission format of the first signal is OOK and M = 4. The length of the first sequence carried by the first signal is 16, occupying 4 OFDM symbols, that is, a total of 16 OOK symbols are occupied. Table 49 is a schematic table of a first sequence provided by the embodiments of the present application. The first sequence is as shown in Table 49 below, where each row represents a first sequence. In addition, "0", "1", and "-1" in the following table can be replaced with each other.

[0599] Optionally, "0" in the first sequence in the following tables can be replaced with "-1".

[0600] Optionally, "0" in the first sequence in the following tables can be replaced with "1", and at the same time, "1" can be replaced with "-1".

[0601] For the first sequence with a length of 16, 1 "1", 1 "0", or "-1" is sent among the M = 4 OOK symbols.

[0602] Table 49 A schematic table of a first sequence provided by the embodiments of the present application

[0603]

[0604]

[0605] The first signal generated based on the first sequence listed in the above table can significantly improve the timing synchronization estimation accuracy and / or RSRP / RSRQ measurement accuracy when using the first signal for timing synchronization estimation and / or RSRP / RSRQ measurement. When selecting 4 sequences as the first sequence, it is preferable to select 4 first sequences with indexes 1, 2, 3, and 4.

[0606] When the receiving end performs timing synchronization estimation and / or RSRP / RSRQ measurement by receiving and detecting the first signal, the receiving end will convert the first sequence saved locally into a third sequence, where the third sequence is generated according to at least one of the following operations:

[0607] Y = 2X - 1, where X is an element in the first sequence and Y is an element in the corresponding third sequence;

[0608] Y = 1 - 2X, where X is an element in the first sequence and Y is an element in the corresponding third sequence;

[0609] The elements in the first sequence that are "0" remain unchanged, and then the elements in the first sequence that are "0" are converted to "-1" to generate the third sequence.

[0610] Then, when the receiving end detects the first sequence through sequence correlation, the local sequence used by the receiving end is the third sequence.

[0611] When selecting 4 sequences as the first sequence, the preferred sequence combinations are at least one of the following. Among them, the 4 sequences have low cross-correlation values. Table 50 is another sequence combination schematic table provided by the embodiments of the present application. The selected sequences are shown in Table 50.

[0612] Table 50 Another sequence combination schematic table provided by the embodiments of the present application

[0613]

[0614]

[0615]

[0616] In an example, when there are M = 4 OOK symbols in 1 OFDM symbol, that is, the transmission format of the first signal is OOK, M = 4. The length of the first sequence carried by the first signal is 16, occupying 4 OFDM symbols, that is, a total of 16 OOK symbols are occupied. Table 51 is a schematic table of a first sequence provided by the embodiments of the present application. The first sequences are as shown in Table 51 below, where each row represents a first sequence. In addition, the "0", "1", and "-1" in the following table can be replaced with each other.

[0617] Optionally, the "0" in the first sequence in the following tables can be replaced by "-1".

[0618] Optionally, the "0" in the first sequence in the following tables can be replaced by "1", and at the same time, the "1" can be replaced by "-1".

[0619] For the first sequence with a length of 16, M = 4 OOK symbols, and one "1", one "0" or "-1" is transmitted.

[0620] Table 51 Schematic table of a first sequence provided by an embodiment of the present application

[0621]

[0622]

[0623] When generating the first signal based on the first sequence listed in the above table and using the first signal for timing synchronization estimation and / or RSRP / RSRQ measurement, the accuracy of timing synchronization estimation and / or the accuracy of RSRP / RSRQ measurement are significantly improved. When selecting 4 sequences as the first sequence, it is preferred to select 4 first sequences with indexes 1, 2, 3, and 4.

[0624] When selecting 4 sequences as the first sequence, the preferred sequence combinations are at least one of the following. Among them, the 4 sequences have a low cross-correlation value. Table 52 is another schematic table of sequence combinations provided by an embodiment of the present application. The selected sequences are shown in Table 52.

[0625] Table 52 Another schematic table of sequence combinations provided by an embodiment of the present application

[0626]

[0627]

[0628] In one example, when one OFDM symbol includes M = 4 OOK symbols, that is, the transmission format of the first signal is OOK, M = 4. The first sequence carried by the first signal has a length of 16 and occupies 4 OFDM symbols, that is, a total of 16 OOK symbols are occupied. Table 53 is a schematic table of a first sequence provided by an embodiment of the present application. The first sequence is as shown in Table 53 below, and each row represents a first sequence. In addition, the "0", "1", and "-1" in the following table can be replaced with each other.

[0629] Optionally, the "0" in the first sequence in the following tables can be replaced by "-1".

[0630] Optionally, the "0" in the first sequence in the following tables can be replaced by "1", and at the same time, the "1" can be replaced by "-1".

[0631] For the first sequence with a length of 16, 1 "1", 1 "0", or "-1" is sent among M = 4 OOK symbols.

[0632] Table 53 Schematic table of a first sequence provided by an embodiment of the present application

[0633]

[0634] When generating the first signal based on the first sequence listed in the above table and using the first signal for timing synchronization estimation and / or RSRP / RSRQ measurement, the accuracy of timing synchronization estimation and / or the accuracy of RSRP / RSRQ measurement are significantly improved. When selecting 4 sequences as the first sequence, it is preferable to select the 4 first sequences with indexes 1, 2, 3, and 4.

[0635] When selecting 4 sequences as the first sequence, the preferred sequence combinations are at least one of the following. Among them, the 4 sequences have a low cross-correlation value. Table 54 is another schematic table of sequence combinations provided by an embodiment of the present application. The selected sequences are shown in Table 54.

[0636] Table 54 Another schematic table of sequence combinations provided by an embodiment of the present application

[0637]

[0638] In one example, when 1 OFDM symbol includes M = 4 OOK symbols, that is, the transmission format of the first signal is OOK, M = 4. The first sequence carried by the first signal has a length of 32 and occupies 8 OFDM symbols, that is, a total of 32 OOK symbols are occupied. Table 55 is a schematic table of a first sequence provided by an embodiment of the present application. The first sequence is as shown in Table 55 below, where each row represents a first sequence. In addition, the "0", "1", and "-1" in the following table can be replaced with each other.

[0639] Optionally, the "0" in the first sequence in the following tables can be replaced by "-1".

[0640] Optionally, the "0" in the first sequence in the following tables can be replaced by "1", and at the same time, the "1" can be replaced by "-1".

[0641] For the first sequence with a length of 32, 1 "1", 1 "0", or "-1" is sent among M = 4 OOK symbols.

[0642] Table 55 Schematic table of a first sequence provided by an embodiment of the present application

[0643]

[0644]

[0645] The first signal generated based on the first sequence listed in the above table, when using the first signal for timing synchronization estimation and / or RSRP / RSRQ measurement, significantly improves the accuracy of timing synchronization estimation and / or the accuracy of RSRP / RSRQ measurement. When selecting 4 sequences as the first sequence, it is preferred to select 4 first sequences with indexes 1, 2, 3, and 4.

[0646] When the receiving end performs timing synchronization estimation and / or RSRP / RSRQ measurement by receiving and detecting the first signal, the receiving end will convert the first sequence locally stored into a third sequence, where the third sequence is generated according to at least one of the following operations:

[0647] Y = 2X - 1, where X is an element in the first sequence and Y is an element in the corresponding third sequence;

[0648] Y = 1 - 2X, where X is an element in the first sequence and Y is an element in the corresponding third sequence;

[0649] The elements in the first sequence that are "0" remain unchanged, and then the elements in the first sequence that are "0" are converted to "-1", thereby generating the third sequence.

[0650] Then, when the receiving end detects the first sequence through sequence correlation, the local sequence used by the receiving end is the third sequence.

[0651] When selecting 4 sequences as the first sequence, the preferred sequence combinations are at least one of the following. Among them, the 4 sequences have a low cross-correlation value. Table 56 is another schematic table of sequence combinations provided by an embodiment of the present application. The selected sequences are shown in Table 56.

[0652] Table 56 Another schematic table of sequence combinations provided by an embodiment of the present application

[0653]

[0654]

[0655] In one example, when there are M = 4 OOK symbols in one OFDM symbol, that is, the transmission format of the first signal is OOK and M = 4. The length of the first sequence carried by the first signal is 32, occupying 8 OFDM symbols, that is, a total of 32 OOK symbols are occupied. Table 57 is a schematic table of a first sequence provided by an embodiment of the present application. The first sequence is as shown in Table 57 below, where each row represents a first sequence. In addition, "0", "1", and "-1" in the following table can be replaced with each other.

[0656] Optionally, "0" in the first sequence in the following tables can be replaced with "-1".

[0657] Optionally, "0" in the first sequence in the following tables can be replaced with "1", and at the same time, "1" can be replaced with "-1".

[0658] For the first sequence with a length of 32, 1 "1", 1 "0", or "-1" is sent among the M = 4 OOK symbols.

[0659] Table 57 Schematic table of a first sequence provided by an embodiment of the present application

[0660]

[0661]

[0662] When generating the first signal based on the first sequence listed in the above table and using the first signal for timing synchronization estimation and / or RSRP / RSRQ measurement, the accuracy of timing synchronization estimation and / or the accuracy of RSRP / RSRQ measurement are significantly improved. When selecting 4 sequences as the first sequence, it is preferable to select 4 first sequences with indexes 1, 2, 3, and 4.

[0663] When selecting 4 sequences as the first sequence, the preferred sequence combinations are at least one of the following. Among them, the 4 sequences have a low cross-correlation value. Table 58 is another schematic table of sequence combinations provided by an embodiment of the present application. The selected sequences are shown in Table 58.

[0664] Table 58 Another schematic table of sequence combinations provided by an embodiment of the present application

[0665]

[0666]

[0667]

[0668] In one example, when an OFDM symbol includes M = 4 OOK symbols, that is, the transmission format of the first signal is OOK and M = 4. The length of the first sequence carried by the first signal is 16, occupying 4 OFDM symbols, that is, a total of 16 OOK symbols are occupied. Table 59 is a schematic table of a first sequence provided by an embodiment of the present application. The first sequence is as shown in Table 59 below, where each row represents a first sequence. In addition, "0", "1", and "-1" in the following table can be replaced with each other.

[0669] Optionally, "0" in the first sequence in the following tables can be replaced with "-1".

[0670] Optionally, "0" in the first sequence in the following tables can be replaced with "1", and at the same time, "1" can be replaced with "-1".

[0671] For the first sequence with a length of 16, 1 "1", 3 "0"s or "-1"s are sent in M = 4 OOK symbols.

[0672] Table 59 Schematic table of a first sequence provided by an embodiment of the present application

[0673]

[0674] When the first signal is generated based on the first sequence listed in the above table and the first signal is used for timing synchronization estimation and / or RSRP / RSRQ measurement, the accuracy of timing synchronization estimation and / or RSRP / RSRQ measurement is significantly improved. When 4 sequences are selected as the first sequence, preferably 4 first sequences with indexes 1, 2, 3, and 4 are selected.

[0675] Preferably, when the receiving end performs timing synchronization estimation and / or RSRP / RSRQ measurement by receiving and detecting the first signal, the receiving end will convert the first sequence saved locally into a third sequence, where the third sequence is generated according to at least one of the following operations:

[0676] Y = 2X - 1, where X is an element in the first sequence and Y is an element in the corresponding third sequence;

[0677] Y = 1 - 2X, where X is an element in the first sequence and Y is an element in the corresponding third sequence;

[0678] The elements in the first sequence that are "0" remain unchanged, and then the elements in the first sequence that are "0" are converted to "-1", thereby generating a third sequence.

[0679] Then, when the receiving end detects the first sequence through sequence correlation, the local sequence used by the receiving end is the third sequence.

[0680] When selecting 4 of these sequences as the first sequence, the preferred sequence combinations are at least one of the following. Among them, the 4 sequences have low cross-correlation values. Table 60 is another schematic table of sequence combinations provided in the embodiments of the present application. The selected sequences are shown in Table 60.

[0681] Table 60 Another schematic table of sequence combinations provided in the embodiments of the present application

[0682]

[0683]

[0684] In one example, when an OFDM symbol includes M = 4 OOK symbols, that is, the transmission format of the first signal is OOK and M = 4. The length of the first sequence carried by the first signal is 16, occupying 4 OFDM symbols, that is, a total of 16 OOK symbols are occupied. Table 61 is a schematic table of a first sequence provided in the embodiments of the present application. The first sequences are as shown in Table 61 below, where each row represents a first sequence. In addition, "0", "1", and "-1" in the following table can be replaced with each other.

[0685] Optionally, "0" in the first sequence in each of the following tables can be replaced with "-1".

[0686] Optionally, "0" in the first sequence in each of the following tables can be replaced with "1", and at the same time, "1" can be replaced with "-1".

[0687] For the first sequence with a length of 16, 1 "1", 1 "0", or "-1" is sent among the M = 4 OOK symbols.

[0688] Table 61 A schematic table of a first sequence provided in the embodiments of the present application

[0689]

[0690] When using the first signal generated based on the first sequences listed in the above table for timing synchronization estimation and / or RSRP / RSRQ measurement, the accuracy of timing synchronization estimation and / or the accuracy of RSRP / RSRQ measurement are significantly improved. When selecting 4 of these sequences as the first sequence, the preferred indexes are the 4 first sequences with indexes 1, 2, 3, and 4.

[0691] When selecting 4 of these sequences as the first sequence, the preferred sequence combinations are at least one of the following. Among them, the 4 sequences have low cross-correlation values. Table 62 is another schematic table of sequence combinations provided in the embodiments of the present application. The selected sequences are shown in Table 62.

[0692] Table 62 Another schematic table of sequence combinations provided in the embodiments of the present application

[0693]

[0694] In one example, when there is M = 1 OOK symbol in one OFDM symbol, that is, the transmission format of the first signal is OOK and M = 1. The length of the first sequence carried by the first signal is 4, occupying 4 OFDM symbols, that is, a total of 4 OOK symbols are occupied. Table 63 is a schematic table of a first sequence provided in the embodiments of the present application. The first sequence is as shown in Table 63 below, where each row represents a first sequence. In addition, "0", "1", and "-1" in the following table can be replaced with each other.

[0695] Optionally, "0" in the first sequence in the following tables can be replaced with "-1".

[0696] Optionally, "-1" in the first sequence in the following tables can be replaced with "0".

[0697] Optionally, "0" in the first sequence in the following tables can be replaced with "1", and at the same time, "1" can be replaced with "-1".

[0698] Table 63 A schematic table of a first sequence provided in the embodiments of the present application

[0699]

[0700]

[0701] For the first signal generated based on the first sequence listed in the above table, when using the first signal for timing synchronization estimation and / or RSRP / RSRQ measurement, the accuracy of timing synchronization estimation and / or RSRP / RSRQ measurement is significantly improved. When selecting 4 sequences as the first sequence, the 4 first sequences with indexes 1, 2, 3, and 4.

[0702] In an exemplary embodiment, the present application provides a signal generation device, which can be integrated in a communication node. Figure 5 is a schematic structural diagram of a signal generation device provided in the embodiments of the present application; see Figure 5 , the signal generation device includes:

[0703] An acquisition module 510, configured to acquire a first sequence;

[0704] A generation module 520, configured to generate a first signal according to the first sequence, and the first signal occupies at least one symbol in the time domain;

[0705] Among them, the data information carried by the first signal in the occupied symbol includes M elements in the first sequence, where M is an integer greater than or equal to 1.

[0706] The signal generation device provided in this embodiment is used to implement the signal generation method of the embodiment as Figure 1 shown. The implementation principle and technical effect of the signal generation device provided in this embodiment are similar to those of the signal generation method of the embodiment Figure 1 shown, and will not be elaborated here.

[0707] Based on the above embodiment, a variant embodiment of the above embodiment is proposed. Here, it should be noted that for the sake of brevity of description, only the differences from the above embodiment are described in the variant embodiment.

[0708] In one embodiment, it includes at least one of the following: when M>1, the number of elements with the first value and the number of elements with the second value in the data information are equal or differ by 1.

[0709] When M = 1, the number of elements with the first value and the number of elements with the second value in the first sequence are equal or differ by 1.

[0710] In one embodiment, the combination of the first value and the second value includes at least one of the following:

[0711] The first value is a zero value, and the second value is a non-zero value;

[0712] The first value is a negative value, and the second value is a positive value.

[0713] In one embodiment, the combination of the first value and the second value includes at least one of the following:

[0714] The first value is a zero value, and the second value is a non-zero value;

[0715] The first value is a zero value, and the second value is 1;

[0716] The first value is -1, and the second value is 1.

[0717] The first value is a negative value, and the second value is a positive value.

[0718] In one embodiment, the combination of the first value and the second value includes at least one of the following:

[0719] The first value is a zero value, and the second value is 1;

[0720] The first value is -1, and the second value is 1.

[0721] In one embodiment, the signal generation device further includes a first determination module configured to:

[0722] Determine the configuration information of the first signal according to the configuration information of the second signal;

[0723] Wherein, the configuration information of the second signal includes the transmission mode of the second signal.

[0724] In one embodiment, the configuration information of the first signal includes one or more of the following:

[0725] The length of the first sequence; the transmission mode of the first signal.

[0726] In one embodiment, the transmission mode of the first signal includes one or more of the following:

[0727] The format adopted for the first signal transmission is binary on-off keying OOK, M = 1;

[0728] The format adopted for the first signal transmission is OOK, M = 2;

[0729] The format adopted for the first signal transmission is OOK, M = 4.

[0730] In one embodiment, the transmission mode of the second signal includes one or more of the following:

[0731] The format adopted for the second signal transmission is OOK, M = 1;

[0732] The format adopted for the second signal transmission is OOK, M = 2;

[0733] The format adopted for the second signal transmission is OOK, M = 4.

[0734] In one embodiment, the length of the first sequence includes one or more of the following:

[0735] 6, 8, 12, 16, 32.

[0736] In one embodiment, when the format adopted for the first signal transmission is OOK, M = 1, the length of the first sequence is 6 or 8; when the format adopted for the first signal transmission is OOK, M = 2, the length of the first sequence is 12 or 16; when the format adopted for the first signal transmission is OOK, M = 4, the length of the first sequence is 16 or 32.

[0737] In one embodiment, the signal generation device further includes a second determination module configured to:

[0738] Determine one or more of the following based on the transmission period of the first signal:

[0739] The transmission mode of the first signal; the length of the first sequence; the transmission mode of the second signal.

[0740] In one embodiment, the transmission period of the first signal has a corresponding relationship with one or more of the following:

[0741] The transmission mode of the first signal; the length of the first sequence; the transmission mode of the second signal.

[0742] In one embodiment, the first sequence includes one or more of the following:

[0743] A second sequence;

[0744] At least one padding element;

[0745] At least one element in the second sequence.

[0746] In one embodiment, the first sequence is generated by a Manchester code, where the Manchester code includes at least one of the following:

[0747] A Manchester code [0 1] of length 2;

[0748] A Manchester code [1 0] of length 2;

[0749] A Manchester code [0 1 0 1] of length 4;

[0750] A Manchester code [1 0 1 0] of length 4;

[0751] A Manchester code [1 0 0 1] of length 4;

[0752] A Manchester code [0 1 1 0] of length 4;

[0753] A Manchester code [0 0 1 1] of length 4;

[0754] A Manchester code [1 1 0 0] of length 4.

[0755] In one embodiment, the first sequence is generated by a Manchester code and a third sequence, where the Manchester code includes at least one of the following:

[0756] The element corresponding to the Manchester codeword [0 1] with a length of 2 is 0 or -1, and the element corresponding to the Manchester codeword [1 0] with a length of 2 is 1;

[0757] The element corresponding to the Manchester codeword [0 1] with a length of 2 is 1, and the element corresponding to the Manchester codeword

[10] with a length of 2 is 0 or -1;

[0758] The element corresponding to the Manchester codeword [0 0] with a length of 2 is 0 or -1, and the element corresponding to the Manchester codeword [1 1] with a length of 2 is 1;

[0759] The element corresponding to the Manchester codeword [0 0] with a length of 2 is 1, and the element corresponding to the Manchester codeword

[11] with a length of 2 is 0 or -1;

[0760] The element corresponding to the Manchester codeword [0 1 0 1] with a length of 4 is 0 or -1, and the element corresponding to the Manchester codeword [1 0 1 0] with a length of 4 is 1;

[0761] The element corresponding to the Manchester codeword [0 1 0 1] with a length of 4 is 1, and the element corresponding to the Manchester codeword [1 0 1 0] with a length of 4 is 0 or -1;

[0762] The element corresponding to the Manchester codeword [0 1 1 0] with a length of 4 is 0 or -1, and the element corresponding to the Manchester codeword [1 0 0 1] with a length of 4 is 1;

[0763] The element corresponding to the Manchester codeword [0 1 1 0] with a length of 4 is "1", and the element corresponding to the Manchester codeword [1 0 0 1] with a length of 4 is 0 or -1;

[0764] The element corresponding to the Manchester codeword [0 0 1 1] with a length of 4 is 0 or -1, and the element corresponding to the Manchester codeword [1 1 0 0] with a length of 4 is 1;

[0765] The element corresponding to the Manchester codeword [0 0 1 1] with a length of 4 is 1, and the element corresponding to the Manchester codeword [1 1 0 0] with a length of 4 is 0 or -1;

[0766] Among them, the third sequence is composed of elements 0 and 1, or composed of elements 1 and -1.

[0767] In one embodiment, in the Manchester codeword corresponding to the determined Manchester codeword length, each element in the third sequence selects a corresponding Manchester codeword according to the value of the element to form the first sequence.

[0768] In an exemplary embodiment, the embodiment of the present application further provides a first communication node. Figure 6 It is a schematic structural diagram of a communication node provided by the embodiment of the present application. As Figure 6 shown, the communication node provided by the present application includes one or more processors 61 and a storage device 62; the processor 61 in the communication node can be one or more. Figure 6 Taking one processor 61 as an example; the storage device 62 is used to store one or more programs; the one or more programs are executed by the one or more processors 61, so that the one or more processors 61 implement the signal generation method as described in the embodiment of the present application.

[0769] The communication node further includes: a communication device 63, an input device 64, and an output device 65.

[0770] The processor 61, storage device 62, communication device 63, input device 64, and output device 65 in the communication node can be connected through a bus or other means. Figure 6 Taking connection through a bus as an example.

[0771] The input device 64 can be used to receive input digital or character information, and generate key signal inputs related to the user settings and function control of the communication node. The output device 65 can include a display device such as a display screen.

[0772] The communication device 63 can include a receiver and a transmitter. The communication device 63 is configured to perform information transceiver communication according to the control of the processor 61.

[0773] The storage device 62, being a computer-readable storage medium, can be configured to store software programs, computer-executable programs, and modules, such as the program instructions / modules corresponding to the signal generation method described in the embodiments of the present application (for example, the acquisition module 510 and the generation module 520 in the signal generation device). The storage device 62 can include a program storage area and a data storage area. Among them, the program storage area can store an operating system and application programs required for at least one function; the data storage area can store data created according to the use of the device, etc. In addition, the storage device 62 can include high-speed random access memory and can also include non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other non-volatile solid-state storage devices. In some instances, the storage device 62 can further include a memory remotely provided relative to the processor 61, and these remote memories can be connected to the communication node through a network. Examples of the above network include but are not limited to the Internet, an enterprise intranet, a local area network, a mobile communication network, and combinations thereof.

[0774] In an exemplary embodiment, the embodiments of the present application further provide a storage medium storing a computer program, which when executed by a processor implements any method described in the present application. The storage medium stores a computer program, which when executed by a processor implements the signal generation method of the embodiments of the present application. The signal generation method includes: acquiring a first sequence; generating a first signal according to the first sequence, where the first signal occupies at least one symbol in the time domain; and where the data information carried by the first signal in the occupied symbol includes M elements in the first sequence, where M is an integer greater than or equal to 1.

[0775] The computer storage medium of the embodiments of the present application can adopt any combination of one or more computer-readable media. The computer-readable medium can be a computer-readable signal medium or a computer-readable storage medium. The computer-readable storage medium can be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the above. More specific examples (non-exhaustive list) of the computer-readable storage medium include: an electrical connection having one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM), a flash memory, an optical fiber, a portable CD-ROM, an optical storage device, a magnetic storage device, or any suitable combination of the above. The computer-readable storage medium can be any tangible medium that contains or stores a program that can be used by or in conjunction with an instruction execution system, apparatus, or device.

[0776] A computer-readable signal medium may include a data signal propagated in a baseband or as part of a carrier wave, which carries computer-readable program code. Such a propagated data signal may take various forms, including but not limited to: electromagnetic signals, optical signals, or any suitable combination of the foregoing. The computer-readable signal medium may also be any computer-readable medium other than a computer-readable storage medium, which can send, propagate, or transmit a program for use by or in connection with an instruction execution system, apparatus, or device.

[0777] The program code contained on the computer-readable medium may be transmitted using any appropriate medium, including but not limited to: wireless, wire, optical fiber cable, radio frequency (RF), etc., or any suitable combination of the foregoing.

[0778] The computer program code for performing the operations of the present application may be written in one or more programming languages or combinations thereof. The programming languages include object-oriented programming languages such as Java, Smalltalk, C++, and also include conventional procedural programming languages such as the "C" language or similar programming languages. The program code may be executed entirely on the user's computer, partially on the user's computer, executed as a stand-alone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computer (e.g., through the Internet using an Internet service provider).

[0779] As described above, it is only an exemplary embodiment of the present application and is not intended to limit the protection scope of the present application.

[0780] Generally speaking, various embodiments of the present application may be implemented in hardware or dedicated circuits, software, logic, or any combination thereof. For example, some aspects may be implemented in hardware, while other aspects may be implemented in firmware or software that can be executed by a controller, microprocessor, or other computing device, although the present application is not limited thereto.

[0781] Embodiments of the present application can be implemented by a data processor of a mobile device executing computer program instructions, for example, in a processor entity, or by hardware, or by a combination of software and hardware. The computer program instructions can be assembly instructions, instruction set architecture (ISA) instructions, machine instructions, machine-related instructions, microcode, firmware instructions, state-setting data, or source code or object code written in any combination of one or more programming languages.

[0782] Any block diagram of a logical process in the drawings of the present application can represent program steps, or can represent interconnected logical circuits, modules, and functions, or can represent a combination of program steps and logical circuits, modules, and functions. The computer program can be stored in a memory. The memory can be of any type suitable for the local technical environment and can be implemented using any suitable data storage technology, such as, but not limited to, read-only memory (ROM), random access memory (RAM), optical memory devices and systems (digital video disc (DVD) or compact disk (CD)), etc. The computer-readable medium can include non-transitory storage media. The data processor can be of any type suitable for the local technical environment, such as, but not limited to, a general-purpose computer, a special-purpose computer, a microprocessor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field-programmable gate array (FGPA), and a processor based on a multi-core processor architecture.

[0783] By way of illustrative and non-limiting examples, a detailed description of exemplary embodiments of the present application has been provided above. However, various modifications and adaptations of the above embodiments will be apparent to those skilled in the art when considered in conjunction with the accompanying drawings and the claims, without departing from the scope of the present disclosure.

Claims

1. A signal generation method, characterized in that: include: Get the first sequence; Generate a first signal according to a first sequence, wherein the first signal occupies at least one symbol in the time domain; The data information carried by the first signal in the occupied symbol includes M elements in the first sequence, where M is an integer greater than or equal to 1.

2. The method according to claim 1, characterized in that Include at least one of the following: When M is greater than 1, the number of elements in the data information whose element values ​​are the first value and the number of elements whose element values ​​are the second value are equal or differ by 1; When M is equal to 1, the number of elements in the first sequence whose element values ​​are the first value and the number of elements whose element values ​​are the second value are equal or differ by 1.

3. The method according to claim 2, characterized in that The combination of the first value and the second value includes at least one of the following: The first value is zero, and the second value is non-zero; The first value is a negative value, and the second value is a positive value; The first value is zero, and the second value is 1; The first value is -1, and the second value is 1.

4. The method according to claim 1, characterized in that: Also includes: Determining configuration information of the first signal according to the configuration information of the second signal; The configuration information of the second signal includes a transmission method of the second signal.

5. The method according to claim 4, characterized in that The configuration information of the first signal includes one or more of the following: The length of the first sequence; the transmission method of the first signal.

6. The method according to claim 5, characterized in that The transmission mode of the first signal includes one or more of the following: The format adopted for the first signal transmission is binary on-off keying OOK, M=1; The format adopted for the first signal transmission is OOK, M=2; The format adopted for the first signal transmission is OOK, M=4.

7. The method according to claim 4, characterized in that The transmission mode of the second signal includes one or more of the following: The format adopted for the second signal transmission is OOK, M=1; The format adopted for the second signal transmission is OOK, M=2; The format adopted for the second signal transmission is OOK, M=4.

8. The method according to claim 1, characterized in that The length of the first sequence includes one or more of the following: 6,8,12,16,32。 9. The method according to claim 8, characterized in that Include one or more of the following: When the format adopted for the first signal transmission is OOK and M=1, the length of the first sequence is 6 or 8; When the format adopted for the first signal transmission is OOK and M=2, the length of the first sequence is 12 or 16; When the format adopted for the first signal transmission is OOK and M=4, the length of the first sequence is 16 or 32.

10. The method according to claim 1, characterized in that Also includes: According to the sending period of the first signal, one or more of the following is determined: a transmission mode of the first signal; a length of the first sequence; Transmission method of the second signal.

11. The method according to claim 1, characterized in that: The sending period of the first signal corresponds to one or more of the following: The transmission mode of the first signal; the length of the first sequence; the transmission mode of the second signal.

12. The method according to claim 1, characterized in that The first sequence includes one or more of the following: second sequence; at least one fill element; At least one element of the second sequence.

13. The method according to claim 1, characterized in that: The first sequence is generated by Manchester code, wherein the Manchester code includes at least one of the following: Manchester code of length 2 [0 1]; Manchester code of length 2 [1 0]; Manchester code of length 4 [0 1 0 1]; Manchester code of length 4 [1 0 1 0]; Manchester code of length 4 [1 0 0 1]; Manchester code of length 4 [0 1 1 0]; Manchester code of length 4 [0 0 1 1]; Manchester code of length 4 [1 1 0 0].

14. The method according to claim 13, characterized in that The obtaining of the first sequence comprises: One or more codes are selected from the Manchester codes to form the first sequence.

15. The method according to claim 1, characterized in that The first sequence is generated by Manchester codes and a third sequence, wherein the Manchester code includes at least one of the following: The element corresponding to the Manchester code [0 1] of length 2 is 0 or -1, and the element corresponding to the Manchester code [10] of length 2 is 1; The element corresponding to the Manchester code [0 1] of length 2 is 1, and the element corresponding to the Manchester code [1 0] of length 2 is 0 or -1; The element corresponding to the Manchester code [0 0] of length 2 is 0 or -1, and the element corresponding to the Manchester code [11] of length 2 is 1; The element corresponding to the Manchester code [0 0] of length 2 is 1, and the element corresponding to the Manchester code [1 1] of length 2 is 0 or -1; The elements corresponding to the Manchester code [0 1 0 1] of length 4 are 0 or -1, and the elements corresponding to the Manchester code [1 0 1 0] of length 4 are 1; The element corresponding to the Manchester code [0 1 0 1] of length 4 is 1, and the element corresponding to the Manchester code [1 010] of length 4 is 0 or -1; The elements corresponding to the Manchester code [0 1 1 0] of length 4 are 0 or -1, and the elements corresponding to the Manchester code [1 0 0 1] of length 4 are 1; The element corresponding to the Manchester code [0 1 1 0] of length 4 is "1", and the element corresponding to the Manchester code [100 1] of length 4 is 0 or -1; The element corresponding to the Manchester code [0 0 1 1] of length 4 is 0 or -1, and the element corresponding to the Manchester code [1 1 0 0] of length 4 is 1; The element corresponding to the Manchester code [0 0 1 1] of length 4 is 1, and the element corresponding to the Manchester code [1 100] of length 4 is 0 or -1; The third sequence is composed of elements 0 and 1, or elements 1 and -1.

16. The method according to claim 15, characterized in that In the Manchester code corresponding to the determined Manchester code length, for each element in the third sequence, a corresponding Manchester code is selected according to the value of the element to form the first sequence.

17. A communication node, characterized in that: include: one or more processors; A storage device for storing one or more programs; When the one or more programs are executed by the one or more processors, the one or more processors implement the method according to any one of claims 1 to 16.

18. A storage medium, characterized in that: The storage medium stores a computer program, and when the computer program is executed by a processor, the method according to any one of claims 1 to 16 is implemented.

19. A computer program product comprising a computer program, which, when executed by a processor, implements the method according to any one of claims 1 to 16.

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