Signal transmission method, communication device, storage medium and program product

Abstract

The invention provides a signal transmission method, a communication device, a storage medium and a program product, relates to the technical field of communication, and can solve the problem that low-power-consumption wake-up cannot be executed for a terminal at present. The method comprises the following steps: sending a first signal; the first signal is used for bearing at least one first sequence; the first signal occupies at least one on-off keying (OOK) symbol or at least one orthogonal frequency division multiplexing (OFDM) symbol. According to the invention, a communication scheme for realizing signal transmission through the OOK symbol and / or the OFDM symbol in the time domain can be provided, so that communication interaction of the terminal in a low-power-consumption wake-up process can be realized.

Description

Technical Field

[0001] The present disclosure relates to the field of communication technology, and in particular to a signal transmission method, a communication device, a storage medium, and a program product. Background Art

[0002] In the field of mobile communications, a terminal can reduce power consumption by sleeping, thereby improving the battery life of the terminal. For example, the terminal can periodically trigger a wake-up operation by detecting whether there is data transmission through a main receiver.

[0003] The low power wake up (LP-WU) mechanism is a low power communication solution for IoT devices. IoT devices can receive low power wake up signals (LP-WUS) through separate receivers, thereby triggering data transmission and data reception of the main radio. When the IoT device does not detect the low power wake up signal, the main radio is in a deep sleep state, further reducing the power consumption of the terminal. Currently, there is no clear low power wake up solution for terminals in mobile communications. Summary of the invention

[0004] The embodiments of the present disclosure provide a signal transmission method, a communication device, a storage medium, and a program product, which can solve the problem that low-power wake-up cannot be performed on a terminal at present.

[0005] In one aspect, a signal transmission method is provided, comprising:

[0006] Send a first signal; the first signal is used to carry at least one first sequence; the first signal occupies at least one on-off keying OOK symbol or at least one orthogonal frequency division multiplexing OFDM symbol.

[0007] On the other hand, there is provided another signal transmission method, comprising:

[0008] Receive a first signal; the first signal is used to carry at least one first sequence; the first signal occupies at least one on-off keying OOK symbol or at least one orthogonal frequency division multiplexing OFDM symbol.

[0009] In yet another aspect, there is provided a first node, comprising: a communication unit;

[0010] The communication unit is used to send a first signal; the first signal is used to carry at least one first sequence; the first signal occupies at least one on-off keying OOK symbol or at least one orthogonal frequency division multiplexing OFDM symbol.

[0011] In yet another aspect, there is provided a first node, comprising: a communication unit;

[0012] The communication unit is used to receive a first signal; the first signal is used to carry at least one first sequence; the first signal occupies at least one on-off keying OOK symbol or at least one orthogonal frequency division multiplexing OFDM symbol.

[0013] On the other hand, a communication device is provided, comprising: a memory and a processor; the memory and the processor are coupled; the memory is used to store a computer program; and the processor implements the method described in any one of the above embodiments when executing the computer program.

[0014] On the other hand, a computer-readable storage medium is provided, on which computer program instructions are stored. When the computer program instructions are executed by a processor, the method described in any of the above embodiments is implemented.

[0015] On the other hand, a computer program product is provided. The computer program product includes computer program instructions. When the computer program instructions are executed by a processor, the method described in any one of the above embodiments is implemented.

[0016] In an embodiment of the present disclosure, a first node may send a first signal, the first signal being used to carry at least one first sequence, the first signal occupying at least one on-off keying (OOK) symbol or at least one orthogonal frequency division multiplexing (OFDM) symbol. Since OOK symbols and OFDM symbols can carry low-power wake-up signals, the present disclosure proposes a communication scheme for realizing signal transmission through OOK symbols and / or OFDM symbols in the time domain, so as to facilitate communication interaction of the terminal during the low-power wake-up process. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the present disclosure, the drawings required for use in some embodiments of the present disclosure will be briefly introduced below. Obviously, the drawings described below are only drawings of some embodiments of the present disclosure, and a person skilled in the art can also obtain other drawings based on these drawings.

[0018] Figure 1 An architecture diagram of a communication system provided for some embodiments of the present disclosure;

[0019] Figure 2 A flowchart of a signal processing method provided for some embodiments of the present disclosure;

[0020] Figure 3 A flowchart of another signal processing method provided for some embodiments of the present disclosure;

[0021] Figure 4 A flowchart of another signal processing method provided for some embodiments of the present disclosure;

[0022] Figure 5 A flowchart of another signal processing method provided for some embodiments of the present disclosure;

[0023] Figure 6 A flowchart of a signal transmission method provided for some embodiments of the present disclosure;

[0024] Figure 7 A structural diagram of a first signal provided in some embodiments of the present disclosure;

[0025] Figure 8 A flowchart of another signal transmission method provided for some embodiments of the present disclosure;

[0026] Fig. 9 A structural diagram of a first node provided for some embodiments of the present disclosure;

[0027] Fig.10 A structural diagram of a second node provided in some embodiments of the present disclosure;

[0028] Fig.11 A structural diagram of a communication device provided for some embodiments of the present disclosure. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the present disclosure to clearly and completely describe the technical solutions in the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0030] It should be noted that, in the present disclosure, words such as "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "for example" in the present disclosure should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific way.

[0031] In the following, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features.

[0032] In the description of the present disclosure, unless otherwise specified, " / " means "or", for example, A / B can mean A or B. "And / or" in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships, for example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, "at least one" means one or more, and "a plurality" means two or more.

[0033] In the field of mobile communications, terminal communications involve latency, reliability, availability, and other issues. In addition, the energy efficiency of the terminal also affects the actual user experience. Currently, according to personal usage time, the terminal needs to be charged weekly or daily. Usually, the device consumes tens of milliwatts of power when the radio resource control (RRC) is idle / inactive, and consumes hundreds of milliwatts of power in the RRC connected state. Improving the battery life of the terminal can effectively improve the user experience.

[0034] As can be seen from the above, power consumption is affected by the state of the terminal. In the related technology, the terminal can be periodically awakened by configuring the wake-up cycle length of the terminal, such as the paging cycle. At present, the wake-up cycle of the terminal is usually configured by extending the discontinuous reception (eDRX) cycle. However, the communication delay of this solution is high, which affects the normal use of users.

[0035] The low power wake up (LP-WU) mechanism is a low power communication scheme for IoT devices. IoT devices can receive low power wake up signals (LP-WUS) through separate receivers, thereby triggering data transmission and data reception of the main radio. When the IoT device does not detect the low power wake up signal, the main radio is in a deep sleep state, further reducing the power consumption of the terminal. Currently, there is no clear transmission scheme for low power wake up related signals for terminals in mobile communications.

[0036] In view of this, in the technical solution provided by the present disclosure, the first node may send a first signal, the first signal is used to carry at least one first sequence, and the first signal occupies at least one on-off keying (OOK) symbol or at least one orthogonal frequency division multiplexing (OFDM) symbol. Since OOK symbols and OFDM symbols can carry low-power wake-up signals, the present disclosure proposes a communication scheme for realizing signal transmission through OOK symbols and / or OFDM symbols in the time domain, so as to facilitate communication interaction of the terminal during the low-power wake-up process.

[0037] The network architecture of the mobile communication network (including but not limited to 3G, 4G, 5G and future mobile communication networks) in the disclosed embodiment may include at least a first communication node and a second communication node. It should be understood that in this example, in the downlink, the first communication node may be a network side device (for example, including but not limited to a base station), and the second communication node may be a terminal side device (for example, including but not limited to a terminal). Of course, in the uplink, the first communication node may also be a terminal side device, and the second communication node may also be a network side device. In the device-to-device communication between the two communication nodes, the first communication node and the second communication node may both be a base station or a terminal. The first communication node and the second communication node may be referred to as the first node and the second node, respectively.

[0038] For example, taking the first communication node as a base station and the second communication node as a terminal, as Figure 1 As shown, a communication system provided by an embodiment of the present disclosure includes a base station 101 and a terminal 102. The base station 101 and the terminal 102 may be one or more, and the number is not limited.

[0039] The base station 101 is a device located at the access network side of the above-mentioned communication system and has a wireless transceiver function or a chip or chip system that can be set in the device. The base station 101 includes, but is not limited to, an access point (AP) in a WiFi system, such as a home gateway, a router, a server, a switch, a bridge, etc., an evolved NodeB (eNB), a radio network controller (RNC), a NodeB (NB), a base station controller (BSC), a base transceiver station (BTS), a home base station (e.g., home evolved NodeB, or home NodeB, HNB), a base band unit (BBU), a wireless relay node, a wireless backhaul node, a transmission point (TRP or TP), etc. It can also be a 5G base station, such as a gNB in ​​a new radio (NR) system, or a transmission point (TRP or TP), one or a group of antenna panels (including multiple antenna panels) of a base station in a 5G system, or it can also be a network node constituting a gNB or a transmission point, such as a baseband unit (BBU), or a distributed unit (DU), a roadside unit (roadside unit) with base station functions. The base station 101 also includes base stations in different networking modes, such as a master evolved NodeB (MeNB), a secondary eNB (SeNB), or a secondary gNB (SgNB). The base station 101 also includes different types, such as a ground base station, an air base station, and a satellite base station.

[0040] Terminal 102 is a device with wireless communication function, which can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted. It can also be deployed on the water surface (such as ships, etc.). It can also be deployed in the air (such as airplanes, balloons and satellites, etc.). Terminal 102 is also called user equipment (UE), mobile station (MS), mobile terminal (MT) and terminal equipment, etc., and is a device that provides voice and / or data connectivity to users. For example, terminal 102 includes handheld devices with wireless connection function, vehicle-mounted devices, etc. At present, the terminal 102 can be: a mobile phone, a tablet computer, a laptop computer, a PDA, a mobile internet device (MID), a wearable device (such as a smart watch, a smart bracelet, a pedometer, etc.), a vehicle-mounted device (such as a car, a bicycle, an electric car, an airplane, a ship, a train, a high-speed rail, etc.), a virtual reality (VR) device, an augmented reality (AR) device, a wireless terminal in industrial control, a smart home device (such as a refrigerator, a TV, an air conditioner, an electric meter, etc.), an intelligent robot, a workshop device, a wireless terminal in self-driving, a wireless terminal in remote medical surgery, a wireless terminal in a smart grid, a wireless terminal in transportation safety, a wireless terminal in a smart city, or a wireless terminal in a smart home, a flying device (such as an intelligent robot, a hot air balloon, a drone, an airplane), etc. In a possible application scenario of the present disclosure, the terminal is a terminal that often works on the ground, such as a vehicle-mounted device. In the present disclosure, for the sake of convenience, chips deployed in the above-mentioned devices, such as system-on-a-chip (SOC), baseband chips, etc., or other chips with communication functions may also be referred to as terminals.

[0041] The base station 101 may wake up the terminal 102 through a low-power wake-up mechanism.

[0042] Exemplarily, 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).

[0043] Among them, LP-WUS is used to carry low-power wake-up information.

[0044] The functions of LP-SS include at least one of the following: performing radio resource management (RRM) measurement by detecting LP-SS, performing downlink synchronization by detecting LP-SS, and performing frequency offset correction by detecting LP-SS.

[0045] The functions of the LP-Preamble include at least one of the following: performing RRM measurement by detecting the LP-Preamble, performing downlink synchronization by detecting the LP-Preamble, and performing frequency offset correction by detecting the LP-Preamble.

[0046] In some embodiments, the transmission of LP-Preamble is located before LP-WUS, and the terminal 101 performs downlink synchronization and / or frequency offset correction by detecting LP-Preamble, thereby improving the detection performance of the terminal 101 in detecting LP-WUS.

[0047] The waveform of the above-mentioned signal (LP-WUS / LP-SS / LP-Preamble) can be generated by OOK modulation, which is called OOK based LP-WUS / LP-SS / LP-Preamble. In addition, in the present disclosure, the above-mentioned signal can be carried by multiple subcarriers, that is, when the number of subcarriers occupied by OOK based LP-WUS / LP-SS / LP-Preamble on the spectrum is greater than 1, it is called multiple subcarrier (MC)-OOK based LP-WUS / LP-SS / LP-Preamble.

[0048] In some embodiments, the present disclosure may generate MC-OOK based LP-WUS / LP-SS / LP-Preamble through the following method 1 or method 2.

[0049] Method 1: Figure 2 As shown, the data information sent on M OOK symbols is S M , S M There are M elements in it, namely SM The length is M, expressed as S M =[s 0 ,s 1 ,s 2 ,s 3 ...,s M-1 The data information may be source information, verification information, filling information, etc. M It can also be obtained after data processing based on the data information to be transmitted. For example, the data processing includes at least one of the following: block segmentation, repetition, bit level repetition, source coding, channel coding, modulation, interleaving, adding padding bits, adding cyclic redundancy check (CRC) bits, and rate matching. Among them, the data information S M It can be called coded bit information, coded sequence information or code word information.

[0050] Step 1: Send data information S M Convert to data information Q K , where Q K The length of is K, where K is greater than or equal to 1.

[0051] For example, data information Q K The following formula 1 or formula 2 can be satisfied:

[0052]

[0053] Among them, A 0 Indicates Q K The first group of elements The number of elements in A 1 Indicates Q K The second group of elements The number of elements in A, and so on. 0 +A 1 +…A i +…+A M-1 = K. Parameter data in formula 2 The value of can be configured, 0≤i≤M-1.

[0054] S M The element s in i Corresponding to Q K Elements in or Q K A i Elements or Some elements in can be configured as zero elements or predefined values.

[0055] It is understandable that the Q K The formula for generating S is only an example. M Converted into data information Q of length K K The generation formulas are not listed here one by one.

[0056] Step 2: Data information Q K Perform K-point discrete Fourier transform (DFT) / fast Fourier transform (FFT) operations to obtain data information D K =[d 0 ,d 1 ,d 2 ,d 3 ,...,d K-1 ].

[0057] In some embodiments, the data information D may also be K Do at least one of the following:

[0058] Right D K Perform an upward circular shift operation, the size of the circular shift is or Or K / 2.

[0059] Right D K Perform a downward circular shift operation, the size of the circular shift is or Or K / 2.

[0060] Right D K Perform a left circular shift operation, the size of the circular shift is or Or K / 2.

[0061] Right D K Perform a right circular shift operation, the size of the circular shift is or Or K / 2.

[0062] in, is the ceiling operator, is the floor operator.

[0063] Exemplarily, the above operation can be performed by the FFTSHIFT function, which is a function for moving the zero-frequency component of the Fourier transform to the center of the spectrum. For vector X, FFTSHIFT (X) swaps the left and right halves of X or swaps the upper and lower halves of X. For matrix X, FFTSHIFT (X) swaps the first and third quadrants, and the second and fourth quadrants.

[0064] Step 3: D K Fill it onto the K subcarriers in the frequency domain and perform inverse Fourier transform to obtain the time domain data T N .

[0065] In some embodiments, the overall frequency domain bandwidth of the system includes N subcarriers, and the data information D K Corresponding to the K subcarriers, the other subcarriers can be filled with other data to be transmitted. Then, N-point inverse discrete Fourier transform (IDFT) / inverse fast Fourier transform (IFFT) operations are performed 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 ] Wherein N is greater than or equal to 1. N =[t 0 ,t 1 ,t 2 ,t 3 ,...,t N-1 ] is the sampling point data of M OOK symbols.

[0066] in, is the sampling point data of the first OOK symbol among M OOK symbols, is the sampling point data of the second OOK time domain symbol in the M OOK time domain symbols, and so on. It is the sampling point data of the Mth OOK time domain symbol among the M OOK time domain symbols.

[0067] In some embodiments, before performing the inverse Fourier transform, at least one of the following operations may be performed on the data padded on the N subcarriers:

[0068] Perform an upward circular shift operation on the data, and the size of the circular shift is or Or N / 2.

[0069] The data is subjected to a downward circular shift operation, and the size of the circular shift is or Or N / 2.

[0070] The data is subjected to a left circular shift operation, and the size of the circular shift is or Or N / 2.

[0071] The data is cyclically shifted to the right, and the size of the cyclic shift is or Or N / 2.

[0072] in, is the ceiling operator, is the floor operator.

[0073] Step 4: Based on the time domain data T of N sampling points N =[t 0 ,t 1 ,t 2 ,t 3 ,...,t N-1 ]Add a cyclic prefix (CP), generate a first signal, and send the first signal.

[0074] The added cyclic prefix can be the time domain data T of N sampling points. N The N at the end of cp The first signal generated carries (N+N cp ) sampling points. The first signal may be a wake-up signal or a synchronization signal or a preamble signal, such as MC-OOK based LP-WUS / LP-SS / LP-Preamble.

[0075] In addition, in the above step 3, when the number of frequency domain subcarriers allocated for MC-OOK based LP-WUS / LP-SS / LP-Preamble is not K, for example, the allocated frequency domain subcarrier is K1, K1 is not equal to K. Figure 3 As shown, the above step 3 can be implemented by the following process:

[0076] (1) Data information D K =[d 0 ,d 1 ,d 2 ,d 3 ,…,d K-1 ] to process the data and convert D K Convert to E K1 .

[0077] Among them, E K1 =[e 0 ,e 1 ,e 2 ,e 3 ,...,e K1-1 ]. For example, the conversion operation can be repeating, truncating, punching, etc.

[0078] In some embodiments, E K1 Do at least one of the following:

[0079] For E K1 Perform an upward circular shift operation, the size of the circular shift is or Or K1 / 2.

[0080] For E K1 Perform a downward circular shift operation, the size of the circular shift is or Or K1 / 2.

[0081] For E K1 Perform a left circular shift operation, the size of the circular shift is or Or K1 / 2.

[0082] For E K1 Perform a right circular shift operation, the size of the circular shift is or Or K1 / 2.

[0083] in, is the ceiling operator, is the floor operator.

[0084] (2) Data information E K1 Fill it to K1 subcarriers in the frequency domain and perform inverse Fourier transform to obtain the time domain data T N .

[0085] For subsequent operations, please refer to the above steps 3 and 4, which will not be repeated here.

[0086] Method 2: If Figure 4 As shown, 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 ...,sM-1 ].

[0087] Step 1: Send data information S M Convert to data information in, The length is Greater than or equal to 1.

[0088] Exemplary data information The following formula 3 or formula 4 can be satisfied:

[0089]

[0090] Among them, A 0 express The first group of elements The number of elements in A 1 express The second group of elements The number of elements in , and so on. Parameter data in formula 4 The value of can be configured, 0≤i≤M-1.

[0091] Step 2: Process the data information through the first processing module Process and obtain data information D K =[d 0 ,d 1 ,d 2 ,d 3 ,...,d K-1 ] T .

[0092] For example, data information D K The following formula 5 can be satisfied:

[0093]

[0094] in, is the generalized inverse matrix of F, (F H F) -1 Denotes the matrix F H The inverse matrix of F, F H represents the conjugate transposed matrix of the matrix F, Representation Matrix The transposed matrix of .

[0095] F is a matrix composed of K columns of elements in the IDFT matrix (Matrix), F is A matrix with K rows and K columns. For example, the IDFT Matrix can be expressed by the following formula 6 or formula 7:

[0096]

[0097]

[0098] The K column elements in the IDFT Matrix that constitute F can be N~ column elements in the IDFT Matrix, which at least consists of data information D K The K subcarrier positions or subcarrier indices filled in the frequency domain are determined.

[0099] In some embodiments, D K Do at least one of the following:

[0100] Right D K When performing an upward circular shift operation, the size of the circular shift is or Or K / 2.

[0101] Right D K When performing a downward circular shift operation, the size of the circular shift is or Or K / 2.

[0102] Right D K When performing a left circular shift operation, the size of the circular shift is or Or K / 2.

[0103] Right D K When performing a right circular shift operation, the size of the circular shift is or Or K / 2.

[0104] in, is the ceiling operator, is the floor operator.

[0105] Step 3: D K Fill it onto the K subcarriers in the frequency domain and perform inverse Fourier transform to obtain the time domain data T N .

[0106] In some embodiments, the overall frequency domain bandwidth of the system includes N subcarriers, and the data information D K Corresponding to the K subcarriers, the other subcarriers can be filled with other data to be transmitted. Then, N-point IDFT / IFFT operations are performed 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 ,t3 ,...,t N-1 ] Wherein N is greater than or equal to 1. N =[t 0 ,t 1 ,t 2 ,t 3 ,...,t N-1 ] is the sampling point data of M OOK symbols.

[0107] in, is the sampling point data of the first OOK symbol among M OOK symbols, is the sampling point data of the second OOK time domain symbol in the M OOK time domain symbols, and so on. It is the sampling point data of the Mth OOK time domain symbol among the M OOK time domain symbols.

[0108] Step 4: Based on the time domain data T of N sampling points N =[t 0 ,t 1 ,t 2 ,t 3 ,...,t N-1 ]Add CP, generate a first signal, and send the first signal.

[0109] The added cyclic prefix can be the time domain data T of N sampling points. N The N at the end of cp The first signal generated carries (N+N cp ) sampling points. The first signal may be a wake-up signal or a synchronization signal or a preamble signal, such as MC-OOK based LP-WUS / LP-SS / LP-Preamble.

[0110] In addition, in the above step 3, when the number of frequency domain subcarriers allocated for MC-OOK based LP-WUS / LP-SS / LP-Preamble is not K, for example, the allocated frequency domain subcarrier is K1, K1 is not equal to K. Figure 5 As shown, the above step 3 can be implemented by the following process:

[0111] (1) The data information D is processed by the second processing module K =[d 0 ,d 1 ,d 2 ,d 3 ,…,d K-1 ] to process D K Convert to E K1 .

[0112] Among them, E K1 =[e 0 ,e 1 ,e 2 ,e 3 ,...,e K1-1 ]. For example, the conversion operation can be repeating, truncating, punching, etc.

[0113] (2) Data information E K1 Fill it to K1 subcarriers in the frequency domain and perform inverse Fourier transform to obtain the time domain data T N .

[0114] For subsequent operations, please refer to the above steps 3 and 4, which will not be repeated here.

[0115] As a possible embodiment, the present disclosure can also use the following method 1 or method 2 to process the data information S M Process and obtain data information Q K Or data information

[0116] Method 1: 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 ].

[0117] Step 1: Based on data information S M The element s in i Generate Es i .

[0118] For example, Es i The following formula 8, formula 9, formula 10, or formula 11 may be satisfied:

[0119]

[0120] Among them, x i =0 or x i =s i ,y i =0 or y i =s i .

[0121] Step 2: Based on Es i Generate data information Q K Or data information

[0122] Among them, Q K =[Es 0 ,Es 1 ,...,Es M-1 ],

[0123] 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.

[0124] 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.

[0125] 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.

[0126] 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 ].

[0127] Step 1: Based on data information S M The element s in i Generate Es i .

[0128] For example, Es i The following formula 12 or formula 13 or formula 14 or formula

[0129] Formula 15:

[0130]

[0131] in, or for B i elements, such as Can be The last B in i elements, 0≤bi ≤B i -1.

[0132] or for C i elements, such as Can be The first C i elements, 0≤c i ≤C i -1.

[0133] Among them, data The value of can be configured, 0≤i≤M-1.

[0134] In some embodiments, the data Consists of at least one of the following:

[0135] (1) Length sequence

[0136] (2) Length sequence for Center front elements or 0 elements or A padding element, where the padding element can be any predefined element.

[0137] (3) Length sequence for Middle and back elements or 0 elements or padding element.

[0138] For example, the sequence It can be a binary random sequence, such as ZC sequence (Zadoff-Chu), maximum length linear feedback shift register sequence (maximum length linear feedback shift register sequence, M sequence), pseudo noise sequence (pseudo noise sequence, PN sequence), sequence It can also be a repetition of a binary random sequence.

[0139] In some embodiments, the data It can be a combination of the above sequences, for example:

[0140]

[0141] For example, data It can also be obtained by processing the elements of the above sequence. For example, one of the elements is Among them, 0≤a≤A i -1, can be Then multiply and / or divide and / or add and / or subtract an element.

[0142] Step 2: Based on Es i Generate data information Q K Or data information

[0143] Among them, Q K =[Es 0 ,Es 1 ,...,Es M-1 ],

[0144] 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.

[0145] 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.

[0146] 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.

[0147] It should be pointed out that the various embodiments of the present disclosure may refer to or draw on each other, for example, the same or similar steps, method embodiments, system embodiments and device embodiments may refer to each other without limitation.

[0148] Figure 6 Flow chart of a signal transmission method provided by an embodiment of the present disclosure. Figure 6 As shown, the method comprises the following steps:

[0149] Step 601: Send a first signal.

[0150] The first signal is used to carry at least one first sequence, and the first signal occupies at least one on-off keying OOK symbol or at least one orthogonal frequency division multiplexing OFDM symbol.

[0151] Exemplarily, the first signal may be a wake-up signal or a synchronization signal or a preamble signal, such as LP-WUS, LP-SS, or LP-Preamble.

[0152] In some embodiments, there is a correspondence between the OFDM symbol and the OOK symbol, and the correspondence between the OFDM symbol and the OOK symbol satisfies at least one of the following:

[0153] An OFDM symbol includes at least one OOK symbol;

[0154] The time domain resources occupied by at least one OOK symbol are the same as the time domain resources corresponding to one OFDM symbol;

[0155] The time domain resources occupied by at least one OOK symbol are included in the time domain resources corresponding to one OFDM symbol.

[0156] In some embodiments, the data information carried by at least one OOK symbol includes M elements, where M is a positive integer, and the M elements satisfy at least one of the following:

[0157] including at least one element whose value is a first value;

[0158] The number of elements whose value is the first value accounts for half of the M elements;

[0159] The number of elements whose value is the first value is within the first interval;

[0160] The number of elements whose value is the second value accounts for half of the M elements;

[0161] The number of elements whose value is the second value is within the second interval;

[0162] The last element of the M elements has a value of 0 or -1.

[0163] Exemplarily, the M elements may be the data information S in the above embodiment. M =[s 0 ,s 1 ,s 2 ,s 3 ...,s M-1 ] in the data information S M It can be source information, verification information, filling information, etc. M It can also be obtained after data processing based on the data information to be transmitted. For example, the data processing includes at least one of the following: block segmentation, repetition, bit level repetition, source coding, channel coding, modulation, interleaving, adding padding bits, adding CRC bits, and rate matching. Among them, the data information S MIt can be called coded bit information, coded sequence information or code word information.

[0164] When half of the M elements is not an integer, it can be determined by rounding down or rounding up. The first interval and the second interval can be determined by M and the offset. The first value and the second value are used to represent two different values, for example, 0 and 1, or 0 and -1, or 1 and -1, etc.

[0165] Exemplarily, the first interval may be [M / 2-X1, M / 2+Y1], where X1 and / or Y1 are integers greater than or equal to 0. For example, X1 and / or Y1 are 1 or 2. The second interval may be [M / 2-X2, M / 2+Y2], where X2 and / or Y2 are integers greater than or equal to 0. For example, X2 and / or Y2 are 1 or 2.

[0166] It should be noted that when the first signal occupies multiple OFDM symbols, some of the OFDM symbols may include M OOK symbols, other OFDM symbols may include other numbers of OOK symbols, or multiple OFDM symbols may include M OFDM symbols.

[0167] In some embodiments, the length of the first sequence carried by the first signal is N seq , occupying at least one OFDM symbol. Among them, one OFDM symbol includes M OOK symbols, and the M OOK symbols in one OFDM symbol carry the M elements of the first sequence. The expression of the M elements is at least one of the following:

[0168]

[0169] In the technical solution provided by the present disclosure, a first node may send a first signal, the first signal being used to carry at least one first sequence, the first signal occupying at least one on-off keying (OOK) symbol or at least one orthogonal frequency division multiplexing (OFDM) symbol. Since OOK symbols and OFDM symbols can carry low-power wake-up signals, the present disclosure proposes a communication scheme for realizing signal transmission through OOK symbols and / or OFDM symbols in the time domain, so as to facilitate communication interaction of the terminal during the low-power wake-up process.

[0170] In some embodiments, the first sequence is determined by at least one of:

[0171] The corresponding second sequence;

[0172] a corresponding second sequence and at least one filler element;

[0173] A corresponding second sequence and at least one cyclic shift element, where the cyclic shift element is an element in the second sequence.

[0174] Exemplarily, at least one filling element is N1 elements, at least one cyclic shift element is N2 elements, N1 and N2 are positive integers, the N1 filling elements can be zero elements, and the N2 cyclic shift elements can be the first N2 elements or the last N2 elements in the second sequence or the first N3 elements and N2 elements of the last N4 elements in the second sequence, where N3 and N4 are positive integers.

[0175] The first N2 elements refer to the N2 elements starting from the starting element of the second sequence, and the last N2 elements refer to the N2 elements starting from the last element of the second sequence. The first N3 elements refer to the N3 elements starting from the starting element of the second sequence, and the last N4 elements refer to the N4 elements starting from the last element of the second sequence, where N3 and N4 are positive integers.

[0176] For example, the at least one cyclic shift element may be an element in a cyclic prefix and / or a cyclic suffix of the second sequence. A cyclic prefix operation is to move a signal at the tail of a signal to the head of the signal. A cyclic suffix operation is to move a signal at the head of a signal to the tail of the signal.

[0177] Exemplarily, the first sequence may be composed of the cyclic prefix of the second sequence + the second sequence + the cyclic suffix of the second sequence. The first sequence may also be composed of the second sequence + the cyclic suffix of the second sequence. The first sequence may also be composed of the cyclic prefix of the second sequence + the second sequence + at least one padding element.

[0178] Exemplarily, the second sequence may be a binary sequence, a ZC sequence (Zadoff-Chu), a maximum length linear feedback shift register sequence (maximum length linear feedback shift register sequence, M sequence), or a pseudo noise sequence (pseudo noise sequence, PN sequence).

[0179] It should be noted that the binary sequence provided in the present disclosure refers to a sequence composed of two types of elements with different numerical values, such as a sequence composed of element 0 and element 1, a sequence composed of element 0 and element -1, a sequence composed of element 1 and element -1, etc.

[0180] Taking the M sequence as an example, the M sequence refers to a binary sequence generated by an n-stage shift register or its delay element through linear feedback. For an n-stage shift register, there can be at most 2 n states. Since the all-0 state will not transfer to other states, the longest period of the sequence corresponding to the n-stage shift register is 2 n -1. The feedback polynomial corresponding to the n-stage shift register affects the composition of the M sequence generated by the n-stage shift register. Different feedback polynomials correspond to different M sequences. For example, the M sequence generated by the n-stage shift register has a length N0 = 2 n -1.

[0181] Exemplarily, when one OFDM symbol includes M=4 OOK symbols, the length of the first sequence carried by the first signal is N seq =16, occupying 4 OFDM symbols, namely 16 OOK symbols. The corresponding second sequence has a length N0=15, and the first sequence also includes N1=1 bit of padding elements (for example, 0 element padding).

[0182] Exemplarily, when one OFDM symbol includes M=4 OOK symbols, the length of the first sequence carried by the first signal is N seq =16, occupying 4 OFDM symbols, namely 16 OOK symbols. The corresponding second sequence has a length N0=15, and the first sequence also includes a cyclic shift element of N2=1 bit.

[0183] Exemplarily, when one OFDM symbol includes M=4 OOK symbols, the length of the first sequence carried by the first signal is N seq =20, occupying 5 OFDM symbols, that is, 20 OOK symbols. The corresponding second sequence has a length N0=15, and the first sequence also includes N2=5 cyclic shift elements.

[0184] In some embodiments, at least one sequence carried by the first signal may correspond to the same first sequence. Exemplarily, the feedback polynomials of the second sequences respectively corresponding to the at least one first sequence are the same.

[0185] Exemplarily, when one OFDM symbol includes M=4 OOK symbols, the length of the first sequence carried by the first signal is N seq =16, occupying 4 OFDM symbols, that is, 16 OOK symbols. As shown in Table 1 below, each row represents a first sequence. '0' can be converted to '-1'. There are M / 2 1s and M / 2 0s in the M consecutive elements in the first sequence.

[0186] Table 1 Binary sequence table

[0187]

[0188]

[0189] Taking the first row as an example, the first sequence includes 4 groups of M consecutive elements, [1, 0, 1, 0], [1, 0, 1, 0], [1, 0, 1, 0], [1, 0, 1, 0], and [1, 0, 1, 0]. There are M / 2 elements 0 and 1 in each group.

[0190] Exemplarily, when one OFDM symbol includes M=4 OOK symbols, the length of the first sequence carried by the first signal is N seq =16, occupying 4 OFDM symbols, that is, 16 OOK symbols. As shown in Table 2 below, each row represents a first sequence. '0' can be converted to '-1'. There are M / 2 1s and M / 2 0s in the M consecutive elements in the first sequence.

[0191] Table 2 Binary sequence table

[0192]

[0193] Taking the first row as an example, the first sequence includes 4 groups of M consecutive elements, [1, 0, 1, 0], [1, 0, 1, 0], [1, 0, 1, 0], [1, 0, 1, 0], and [1, 0, 1, 0]. There are M / 2 elements 0 and 1 in each group.

[0194] Exemplarily, when one OFDM symbol includes M=4 OOK symbols, the length of the first sequence carried by the first signal is N seq =16, occupying 4 OFDM symbols, that is, 16 OOK symbols. As shown in Table 3 below, each row represents a first sequence. '-1' can be converted to '0'. There are M / 2 1s and M / 2 -1s in the M consecutive elements in the first sequence.

[0195] Table 3 Binary sequence table

[0196]

[0197] Taking the first row as an example, the first sequence includes 4 groups of M consecutive elements, [1, -1, 1, -1], [-1, -1, 1, 1], [1, -1, 1, -1], [-1, -1, 1, 1], and M / 2 elements -1 and 1 in each group.

[0198] Exemplarily, when one OFDM symbol includes M=4 OOK symbols, the length of the first sequence carried by the first signal is N seq=20, occupying 5 OFDM symbols, that is, 20 OOK symbols. As shown in Table 4 below, each row represents a first sequence. '0' can be converted to '-1'. There are M / 2 1s and M / 2 0s in the M consecutive elements in the first sequence.

[0199] Table 4 Binary sequence table

[0200]

[0201]

[0202] Taking the first row as an example, the first sequence includes 5 groups of M consecutive elements, [1, 0, 1, 0], [1, 0, 1, 0], [1, 0, 1, 0], [1, 0, 1, 0], [1, 0, 1, 0], and [1, 0, 1, 0], with M / 2 elements 0 and 1 in each group.

[0203] Exemplarily, when one OFDM symbol includes M=4 OOK symbols, the length of the first sequence carried by the first signal is N seq =20, occupying 5 OFDM symbols, that is, 20 OOK symbols. As shown in Table 5 below, each row represents a first sequence. '-1' can be converted to '0'. There are M / 2 1s and M / 2 -1s in the M consecutive elements in the first sequence.

[0204] Table 5 Binary sequence table

[0205]

[0206] Taking the first row as an example, the first sequence includes 5 groups of consecutive M elements, [1, 1, -1, -1], [-1, -1, 1, 1], [1, 1, -1, -1], [1, -1, 1, -1], [-1, 1, -1, 1], and M / 2 elements -1 and 1 in each group.

[0207] Exemplarily, when one OFDM symbol includes M=4 OOK symbols, the length of the first sequence carried by the first signal is N seq =24, occupying 6 OFDM symbols, that is, 24 OOK symbols. As shown in Table 6 below, each row represents a first sequence. '0' can be converted to '-1'. There are M / 2 1s and M / 2 0s in the M consecutive elements in the first sequence.

[0208] Table 6 Binary sequence table

[0209]

[0210]

[0211] Taking the first row as an example, the first sequence includes 6 groups of consecutive M elements, [1,0,1,0], [1,0,1,0], [1,0,1,0], [1,0,1,0], [1,0,1,0], [1,0,1,0], [1,0,1,0], a total of 6 groups of M elements, and the number of element 0s and element 1s in each group is M / 2 each.

[0212] Exemplarily, when one OFDM symbol includes M=4 OOK symbols, the length of the first sequence carried by the first signal is N seq =24, occupying 6 OFDM symbols, that is, 24 OOK symbols. As shown in Table 7 below, each row represents a first sequence. '-1' can be converted to '0'. There are M / 2 1s and M / 2 -1s in the M consecutive elements in the first sequence.

[0213] Table 7 Binary sequence table

[0214]

[0215] Taking the first row as an example, the first sequence includes 6 groups of consecutive M elements, [1, 1, -1, -1], [-1, -1, 1, 1], [1, 1, -1, -1], [-1, 1, -1, 1], [1, -1, -1, 1], [1, -1, -1, 1], a total of 6 groups of M elements, and the number of element -1 and element 1 in each group is M / 2 each.

[0216] Exemplarily, when one OFDM symbol includes M=4 OOK symbols, the length of the first sequence carried by the first signal is N seq =28, occupying 7 OFDM symbols, that is, 28 OOK symbols. As shown in Table 8 below, each row represents a first sequence. '0' can be converted to '-1'. There are M / 2 1s and M / 2 0s in the M consecutive elements in the first sequence.

[0217] Table 8 Binary sequence table

[0218]

[0219]

[0220] Taking the first row as an example, the first sequence includes 7 groups of consecutive M elements, [1,0,1,0], [1,0,1,0], [1,0,1,0], [1,0,1,0], [1,0,1,0], [1,0,1,0], [1,0,1,0], [1,0,1,0], a total of 7 groups of M elements, and the number of element 0s and element 1s in each group is M / 2 each.

[0221] Exemplarily, when one OFDM symbol includes M=4 OOK symbols, the length of the first sequence carried by the first signal is N seq=28, occupying 7 OFDM symbols, that is, 28 OOK symbols. As shown in Table 9 below, each row represents a first sequence. '-1' can be converted to '0'. There are M / 2 1s and M / 2 -1s in the M consecutive elements in the first sequence.

[0222] Table 9 Binary sequence table

[0223]

[0224]

[0225] Taking the first row as an example, the first sequence includes 7 groups of consecutive M elements, [1, 1, -1, -1], [-1, -1, 1, 1], [1, 1, -1, -1], [-1, -1, 1, 1], [-1, 1, 1, -1], [1, -1, -1, 1], [-1, 1, -1, 1], [-1, 1, -1, 1], a total of 7 groups of M elements, and the number of -1 elements and 1 elements in each group is M / 2 each.

[0226] Exemplarily, when one OFDM symbol includes M=4 OOK symbols, the length of the first sequence carried by the first signal is N seq =32, occupying 8 OFDM symbols, that is, 32 OOK symbols. As shown in Table 10 below, each row represents a first sequence. '0' can be converted to '-1'. There are M / 2 1s and M / 2 0s in the M consecutive elements in the first sequence.

[0227] Table 10 Binary sequence table

[0228]

[0229] Taking the first row as an example, the first sequence includes 8 groups of consecutive M elements, [1,0,1,0], [1,0,1,0], [1,0,1,0], [1,0,1,0], [1,0,1,0], [1,0,1,0], [1,0,1,0], [1,0,1,0], [1,0,1,0], a total of 8 groups of M elements, and the number of element 0s and element 1s in each group is M / 2 each.

[0230] Exemplarily, when one OFDM symbol includes M=4 OOK symbols, the length of the first sequence carried by the first signal is N seq =32, occupying 8 OFDM symbols, that is, 32 OOK symbols. As shown in Table 11 below, each row represents a first sequence. '-1' can be converted to '0'. There are M / 2 1s and M / 2 0s in the M consecutive elements in the first sequence.

[0231] Table 11 Binary sequence table

[0232]

[0233] Taking the first row as an example, the first sequence includes 8 groups of consecutive M elements, [1, 1, -1, -1], [-1, -1, 1, 1], [1, 1, -1, -1], [-1, -1, 1, 1], [1, -1, 1, -1], [-1, 1, -1, 1], [1, -1, 1, -1], [-1, 1, -1, 1], [-1, 1, -1, 1], a total of 8 groups of M elements, and the number of element -1 and element 1 in each group is M / 2 each.

[0234] Exemplarily, when one OFDM symbol includes M=2 OOK symbols, the length of the first sequence carried by the first signal is N seq =14, occupying 7 OFDM symbols, that is, 14 OOK symbols. As shown in Table 12 below, each row represents a first sequence. '0' can be converted to '-1'. There are M / 2 1s and M / 2 0s in the M consecutive elements in the first sequence.

[0235] Table 12 Binary sequence table

[0236]

[0237]

[0238] Taking the first row as an example, the first sequence includes 7 groups of consecutive M elements [1, 0], [1, 0], [1, 0], [1, 0], [1, 0], [1, 0], [1, 0], [1, 0], a total of 7 groups of M elements, and the number of element 0 and element 1 in each group is M / 2 each.

[0239] Exemplarily, when one OFDM symbol includes M=2 OOK symbols, the length of the first sequence carried by the first signal is N seq =14, occupying 7 OFDM symbols, that is, 14 OOK symbols. As shown in Table 13 below, each row represents a first sequence. '-1' can be converted to '0'. There are M / 2 1s and M / 2 -1s in the M consecutive elements in the first sequence.

[0240] Table 13 Binary sequence table

[0241]

[0242] Taking the first row as an example, the first sequence includes 7 groups of consecutive M elements, [1, -1], [-1, 1], [1, -1], [-1, 1], [1, -1], [-1, 1], [1, -1], and [1, -1]. There are M / 2 elements -1 and 1 in each group.

[0243] Exemplarily, when one OFDM symbol includes M=2 OOK symbols, the length of the first sequence carried by the first signal is N seq=16, occupying 8 OFDM symbols, that is, 16 OOK symbols. As shown in Table 14 below, each row represents a first sequence. '0' can be converted to '-1'. There are M / 2 1s and M / 2 0s in the M consecutive elements in the first sequence.

[0244] Table 14 Binary sequence table

[0245]

[0246] Taking the first row as an example, the first sequence includes 7 groups of consecutive M elements, [1, -1], [-1, 1], [1, -1], [-1, 1], [1, -1], [-1, 1], [1, -1], and [1, -1]. There are M / 2 elements -1 and 1 in each group.

[0247] Exemplarily, when one OFDM symbol includes M=2 OOK symbols, the length of the first sequence carried by the first signal is N seq =16, occupying 8 OFDM symbols, that is, 16 OOK symbols. As shown in Table 15 below, each row represents a first sequence. '-1' can be converted to '0'. There are M / 2 1s and M / 2 -1s in the M consecutive elements in the first sequence.

[0248] Table 15 Binary sequence table

[0249]

[0250] Taking the first row as an example, the first sequence includes 8 groups of consecutive M elements, [1, -1], [-1, 1], [1, -1], [-1, 1], [1, -1], [-1, 1], [1, -1], [-1, 1], [-1, 1], a total of 8 groups, with M / 2 elements -1 and 1 in each group.

[0251] Exemplarily, when one OFDM symbol includes M=2 OOK symbols, the length of the first sequence carried by the first signal is N seq =28, occupying 14 OFDM symbols, that is, 28 OOK symbols. As shown in Table 16 below, each row represents a first sequence. '0' can be converted to '-1'. There are M / 2 1s and M / 2 0s in the M consecutive elements in the first sequence.

[0252] Table 16 Binary sequence table

[0253]

[0254] Taking the first row as an example, the first sequence includes 14 groups of consecutive M elements, [1,0], [1,0], [1,0], [1,0], [1,0], [1,0], [1,0], [1,0], [1,0], [1,0], [1,0], [1,0], [1,0], [1,0], [1,0], a total of 14 groups of M elements, and the number of element 0 and element 1 in each group is M / 2 each.

[0255] Exemplarily, when one OFDM symbol includes M=2 OOK symbols, the length of the first sequence carried by the first signal is N seq =28, occupying 14 OFDM symbols, that is, 28 OOK symbols. As shown in Table 17 below, each row represents a first sequence. '-1' can be converted to '0'. There are M / 2 1s and M / 2 -1s in the M consecutive elements in the first sequence.

[0256] Table 17 Binary sequence table

[0257]

[0258] Taking the first row as an example, the first sequence includes [1, -1], [-1, 1], [1, -1], [-1, 1], [1, -1], [-1, 1], [1, -1], [-1, 1], [1, -1], [-1, 1], [1, -1], [-1, 1], [1, -1], [-1, 1], [1, -1], [-1, 1], a total of 14 groups of consecutive M elements, and the number of element -1 and element 1 in each group is M / 2 each.

[0259] Exemplarily, when one OFDM symbol includes M=2 OOK symbols, the length of the first sequence carried by the first signal is N seq =32, occupying 16 OFDM symbols, that is, 32 OOK symbols. As shown in Table 18 below, each row represents a first sequence. '0' can be converted to '-1'. There are M / 2 1s and M / 2 0s in the M consecutive elements in the first sequence.

[0260] Table 18 Binary sequence table

[0261]

[0262] Taking the first row as an example, the first sequence includes [1,0], [1,0], [1,0], [1,0], [1,0], [1,0], [1,0], [1,0], [1,0], [1,0], [1,0], [1,0], [1,0], [1,0], [1,0], [1,0], [1,0], [1,0], a total of 14 groups of consecutive M elements, and the number of element 0 and element 1 in each group is M / 2 each.

[0263] Exemplarily, when one OFDM symbol includes M=2 OOK symbols, the length of the first sequence carried by the first signal is N seq =32, occupying 16 OFDM symbols, that is, 32 OOK symbols. As shown in Table 19 below, each row represents a first sequence. '0' can be converted to '-1'. There are M / 2 1s and M / 2 0s in the M consecutive elements in the first sequence.

[0264] Table 19 Binary sequence table

[0265]

[0266] Taking the first row as an example, the first sequence includes [1, -1], [-1, 1], [1, -1], [-1, 1], [1, -1], [-1, 1], [1, -1], [-1, 1], [1, -1], [-1, 1], [1, -1], [-1, 1], [1, -1], [-1, 1], [1, -1], [-1, 1], [1, -1], [-1, 1], a total of 16 groups of consecutive M elements, and the number of element -1 and element 1 in each group is M / 2 each.

[0267] In some embodiments, different first sequences may be divided into multiple first sequence sets to facilitate classification and management of the first sequences.

[0268] Exemplarily, at least one first sequence is taken from a first sequence in a first sequence set among multiple first sequence sets, and feedback polynomials of second sequences corresponding to the multiple first sequence sets are different or configured separately or independently.

[0269] For example, the first sequence in the first sequence set constructed above can be used as a first signal (eg, LP-WUS / LP-SS / LP-Preamble) of a base station or a cell.

[0270] The first sequence in the above-constructed first sequence set may also be used as the first signal (eg, LP-WUS / LP-SS / LP-Preamble) of multiple base stations or multiple cells.

[0271] In this way, the multiple first sequences in the first sequence set constituted in this way can carry different information through different first sequences, thereby achieving base station granularity or cell granularity management of the terminal.

[0272] In some embodiments, the first sequence may select padding elements or cyclic shift elements based on the number of configured elements or the number of OFDM symbols.

[0273] For example, the number of elements N in the first sequence config1When the difference between the number of elements N0 in the corresponding second sequence is less than or equal to the first threshold Gap1, the first sequence consists of the corresponding second sequence and at least one padding element; and / or,

[0274] The number of elements N in the first sequence config1 When the difference between the number of elements N0 in the corresponding second sequence is greater than or equal to the second threshold Gap2, the first sequence consists of the corresponding second sequence and at least one cyclic shift element.

[0275] Among them, the number of elements in the first sequence is N config1 Refers to the number of OOK symbols included in the resources configured by the first signal, or the maximum number of OOK symbols. For example, the resources configured by the first signal may be OFDM symbols, the number of configured OFDM symbols is 4, and the number of OOK symbols M included in one OFDM symbol is 4, then the number of OOK symbols included in the resources configured by the first signal is 4*4=16, or the maximum number of OOK symbols included in the resources configured by the first signal is 4*4=16. The first threshold Gap1 and / or the second threshold Gap2 are integers greater than or equal to 0. For example, the first threshold Gap1 and / or the second threshold Gap2 may be the number M of OOK symbols included in one OFDM symbol. The at least one cyclic shift element may be an element in the cyclic prefix and / or cyclic suffix of the second sequence.

[0276] Exemplarily, when the difference between the number of OFDM symbols configured in the first signal and the number of OFDM symbols carrying the first sequence is less than or equal to the third threshold Gap3, the first sequence is composed of the corresponding second sequence and at least one filling element; and / or,

[0277] When the difference between the number of OFDM symbols of the first signal configuration and the number of OFDM symbols carrying the first sequence is greater than or equal to a fourth threshold Gap4, the first sequence consists of the corresponding second sequence and at least one cyclic shift element.

[0278] Among them, when M OOK symbols are configured in one OFDM symbol, the number of OFDM symbols carrying the first sequence is N0 / M, or (N0 / M) rounded up, or (N0 / M) rounded down. The third threshold Gap3 and / or the fourth threshold Gap4 are integers greater than or equal to 0. For example, the third threshold Gap3 and / or the fourth threshold Gap4 can be 1 or 2.

[0279] Exemplarily, when one OFDM symbol includes M=8 OOK symbols, the length of the first sequence carried by the first signal is N seq=16, occupying 2 OFDM symbols, that is, 16 OOK symbols. The corresponding second sequence has a length N0=15, and the first sequence also includes N1=1 bit of padding elements (for example, 0 element padding).

[0280] As shown in Table 20 below, each column represents a binary sequence. It should be noted that the binary sequence table provided in the present disclosure only uses element -1 and element 1 to represent two different elements. The elements in the binary sequence can also be represented by other numerical values. For example, element -1 can be replaced by 1 or 0, and element 1 can also be replaced by -1 or 0.

[0281] Table 20 Binary sequence table

[0282]

[0283]

[0284] The first signal can be selected from columns 1 to 5, or from columns 6 to 10. Taking the first column as an example, the sequence composed of the first 15 elements [-1, 1, -1, -1, 1, 1, -1, 1, 1, 1, -1, -1] is the second sequence, and the 16th element -1 is the filling element.

[0285] Exemplarily, when one OFDM symbol includes M=8 OOK symbols, the length of the first sequence carried by the first signal is N seq =16, occupying 2 OFDM symbols, namely 16 OOK symbols. The corresponding second sequence length N0=15, and the first sequence also includes N2=1 bit cyclic shift elements. The following table 21 is a binary sequence table.

[0286] Table 21 Binary sequence table

[0287]

[0288] The first signal may be selected from columns 1 to 3, or from columns 4 to 6. Taking the first column as an example, the sequence of the first 15 elements [-1, 1, -1, -1, 1, 1, -1, 1, 1, 1, -1, -1] is the second sequence, and the 16th element -1 is the cyclic shift element (e.g., the first element in the second sequence).

[0289] Exemplarily, when one OFDM symbol includes M=8 OOK symbols, the length of the first sequence carried by the first signal is N seq=32, occupying 4 OFDM symbols, namely 32 OOK symbols. The corresponding second sequence length N0=31, and the first sequence also includes N1=1 bit of filling element (for example, 0 element filling). Table 22 below is a binary sequence table.

[0290] Table 22 Binary sequence table

[0291]

[0292]

[0293] The first signal can be selected from columns 1 to 2. Taking the first column as an example, the sequence composed of the first 31 elements [1, 1, 1, -1, 1, -1, -1, -1, 1, -1, -1, 1, -1, -1, -1, -1, -1, -1, 1, 1, -1, -1, -1, 1, 1, -1, -1, 1, 1] is the second sequence, and the 32nd element -1 is the filling element.

[0294] Exemplarily, when one OFDM symbol includes M=8 OOK symbols, the length of the first sequence carried by the first signal is N seq =32, occupying 4 OFDM symbols, that is, 32 OOK symbols. The corresponding second sequence has a length N0=31, and the first sequence also includes a cyclic shift element of N2=1 bit.

[0295] Exemplarily, when one OFDM symbol includes M=8 OOK symbols, the length of the first sequence carried by the first signal is N seq =64, occupying 8 OFDM symbols, namely 64 OOK symbols. The corresponding second sequence length N0=63, and the first sequence also includes N1=1 bit of filling element (for example, 0 element filling).

[0296] Exemplarily, when one OFDM symbol includes M=8 OOK symbols, the length of the first sequence carried by the first signal is N seq =64, occupying 8 OFDM symbols, namely 64 OOK symbols. The corresponding second sequence has a length N0=63, and the first sequence also includes a cyclic shift element of N2=1 bit.

[0297] Exemplarily, when one OFDM symbol includes M=8 OOK symbols, the length of the first sequence carried by the first signal is N seq =40, occupying 5 OFDM symbols, that is, 40 OOK symbols. The corresponding second sequence has a length N0=31, and the first sequence also includes N2=9 cyclic shift elements.

[0298] Exemplarily, when one OFDM symbol includes M=8 OOK symbols, the length of the first sequence carried by the first signal is N seq =72, occupying 9 OFDM symbols, that is, 72 OOK symbols. The corresponding second sequence has a length N0=63, and the first sequence also includes N2=9 cyclic shift elements.

[0299] Exemplarily, when one OFDM symbol includes M=8 OOK symbols, the length of the first sequence carried by the first signal is N seq =16, occupying 2 OFDM symbols, that is, 16 OOK symbols. As shown in Table 23 below, each row represents a first sequence. '0' can be converted to '-1'. There are M / 2 1s and M / 2 0s in the M consecutive elements in the first sequence.

[0300] Table 23 Binary sequence table

[0301]

[0302]

[0303]

[0304] Taking the first row as an example, the first sequence includes 2 groups of M consecutive elements, [1, 0, 1, 0, 1, 0, 1, 0] and [1, 0, 1, 0, 1, 0, 1, 0], with M / 2 elements 0 and 1 in each group.

[0305] Exemplarily, when one OFDM symbol includes M=8 OOK symbols, the length of the first sequence carried by the first signal is N seq =16, occupying 2 OFDM symbols, that is, 16 OOK symbols. As shown in Table 24 below, each row represents a first sequence. '0' can be converted to '-1'. There are M / 2 1s and M / 2 0s in the M consecutive elements in the first sequence.

[0306] Table 24 Binary sequence table

[0307]

[0308]

[0309] Taking the first row as an example, the first sequence includes 2 groups of M consecutive elements, [1, 0, 1, 0, 1, 0, 1, 0] and [1, 0, 1, 0, 1, 0, 1, 0], with M / 2 elements 0 and 1 in each group.

[0310] Exemplarily, when one OFDM symbol includes M=8 OOK symbols, the length of the first sequence carried by the first signal is N seq=16, occupying 2 OFDM symbols, that is, 16 OOK symbols. As shown in Table 25 below, each row represents a first sequence. '-1' can be converted to '0'. There are M / 2 1s and M / 2 0s in the M consecutive elements in the first sequence.

[0311] Table 25 Binary sequence table

[0312]

[0313] Taking the first row as an example, the first sequence includes 2 groups of M consecutive elements, [1, 1, 1, -1, -1, -1, 1, -1], [-1, -1, 1, -1, 1, -1, 1], with M / 2 elements -1 and 1 in each group.

[0314] Exemplarily, when one OFDM symbol includes M=8 OOK symbols, the length of the first sequence carried by the first signal is N seq =24, occupying 3 OFDM symbols, that is, 24 OOK symbols. As shown in Table 26 below, each row represents a first sequence. '0' can be converted to '-1'. There are M / 2 1s and M / 2 0s in the M consecutive elements in the first sequence.

[0315] Table 26 Binary sequence table

[0316]

[0317]

[0318] Taking the first row as an example, the first sequence includes 3 groups of M consecutive elements, [1, 0, 1, 0, 1, 0, 1, 0], [1, 0, 1, 0, 1, 0, 1, 0], and [1, 0, 1, 0, 1, 0, 1, 0], with M / 2 elements 0 and 1 in each group.

[0319] Exemplarily, when one OFDM symbol includes M=8 OOK symbols, the length of the first sequence carried by the first signal is N seq =24, occupying 3 OFDM symbols, that is, 24 OOK symbols. As shown in Table 27 below, each row represents a first sequence. '-1' can be converted to '0'. There are M / 2 1s and M / 2 -1s in the M consecutive elements in the first sequence.

[0320] Table 27 Binary sequence table

[0321]

[0322] Taking the first row as an example, the first sequence includes 2 groups of consecutive M elements, [1, 1, -1, -1, 1, 1, -1, -1], [-1, -1, -1, 1, -1, 1, 1, 1], [1, -1, 1, -1, 1, -1, -1, 1], and M / 2 elements -1 and 1 in each group.

[0323] Exemplarily, when one OFDM symbol includes M=8 OOK symbols, the length of the first sequence carried by the first signal is N seq =32, occupying 4 OFDM symbols, that is, 32 OOK symbols. As shown in Table 28 below, each row represents a first sequence. '0' can be converted to '-1'. There are M / 2 1s and M / 2 0s in the M consecutive elements in the first sequence.

[0324] Table 28 Binary sequence table

[0325]

[0326] Taking the first row as an example, the first sequence includes 4 groups of consecutive M elements, [1,0,1,0,1,0,1,0], [1,0,1,0,1,0,1,0], [1,0,1,0,1,0,1,0], [1,0,1,0,1,0,1,0], and [1,0,1,0,1,0,1,0], totaling 4 groups of M elements, and the number of element 0s and element 1s in each group is M / 2 each.

[0327] Exemplarily, when one OFDM symbol includes M=8 OOK symbols, the length of the first sequence carried by the first signal is N seq =32, occupying 4 OFDM symbols, that is, 32 OOK symbols. As shown in Table 29 below, each row represents a first sequence. '-1' can be converted to '0'. There are M / 2 1s and M / 2 -1s in the M consecutive elements in the first sequence.

[0328] Table 29 Binary sequence table

[0329]

[0330]

[0331]

[0332]

[0333]

[0334]

[0335] Taking the first row as an example, the first sequence includes 4 groups of consecutive M elements, [1,-1,1,1,-1,-1,-1,-1], [1,-1,-1,-1,-1,-1,1,1], [1,-1,1,1,1,-1,-1,-1], [1,-1,-1,-1,-1,-1,1,1], 1,-1,-1,-1,-1,-1,1,1,1], a total of 4 groups of M elements, and the number of -1 elements and 1 elements in each group is M / 2 each.

[0336] In some embodiments, the first signal includes a preamble signal and / or a synchronization signal, and the first sequence carried by the synchronization signal consists of at least one of the following or multiple repetitions of at least one of the following:

[0337] The first sequence carried by the preamble signal;

[0338] A first sequence and at least one padding element carried by the preamble signal;

[0339] The pilot signal carries a first sequence and at least one cyclic shift element; the cyclic shift element is an element in the second sequence;

[0340] The first sequence and the third sequence carried by the preamble signal; the third sequence is composed of some elements in the first sequence carried by the preamble signal.

[0341] It should be noted that the above-mentioned second sequence refers to the second sequence corresponding to the first sequence constituting the pilot signal. The at least one cyclic shift element may be an element in the cyclic prefix and / or cyclic suffix of the second sequence. 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.

[0342] For example, when the number of OOK symbols M in an OFDM symbol is given, the first sequence length N corresponding to the preamble signal LP-Preamble is seq The first sequence corresponding to the synchronization signal LP-SS may be multiple repetitions of the preamble signal LP-Preamble.

[0343] When the length of the binary sequence formed by multiple repetitions of the preamble signal LP-Preamble is insufficient to configure the first sequence length corresponding to the synchronization signal LP-SS, it can be supplemented by adding padding elements or cyclic shift elements.

[0344] When the length of the binary sequence formed by the multiple repetitions of the preamble signal LP-Preamble exceeds the length of the first sequence corresponding to the configured synchronization signal LP-SS, the length may be made equal to the length of the first sequence corresponding to the configured synchronization signal LP-SS by removing redundant elements. For example, elements may be deleted from the end of the binary sequence formed by the multiple repetitions of the preamble signal LP-Preamble, or elements may be deleted from the beginning of the binary sequence formed by the multiple repetitions of the preamble signal LP-Preamble, or elements may be deleted from within the binary sequence formed by the multiple repetitions of the preamble signal LP-Preamble.

[0345] In some embodiments, the length of the first sequence carried by the first signal is determined based at least on the number of OOK symbols in the OFDM symbol.

[0346] Exemplarily, when the number of OOK symbols in the OFDM symbol is adjusted from M1 to P*M1, the length of the first sequence carried by the first signal is increased from N seq1 Adjust to P*N seq1 .

[0347] Among them, N seq1 is greater than 0, and P is greater than 0. That is, the length of the first sequence carried by the first signal can be adjusted in proportion based on the change in the number of OOK symbols in the OFDM symbol.

[0348] As a possible embodiment, the first signal in the present disclosure may also increase the data carrying capacity of the first signal through multiple types of OOK symbols, thereby improving communication efficiency.

[0349] In some embodiments, the types of OOK symbols include a first type and a second type.

[0350] The time domain position of the first type of OOK symbol is different from that of the second type of OOK symbol. For example, the time domain position of the first type of OOK symbol is located in the OFDM symbol. The time domain position of the second type of OOK symbol is located in the cyclic prefix of the OFDM symbol. It should be noted that the second type of OOK symbol can occupy all or part of the time domain resources of the cyclic prefix in the OFDM symbol.

[0351] For frequency domain resources, the first type of OOK symbols and the second type of OOK symbols occupy the same frequency domain resources.

[0352] In some embodiments, the elements or information carried by the second type of OOK symbol are the same as the elements or information carried by the last first type of OOK symbol in the corresponding OFDM symbol. Figure 7As shown, the first signal includes 2 first sequences, each first sequence is carried by 8 first type OOK symbols and 1 second type OOK symbol, wherein the time domain positions of the first type OOK symbols OOK-1 to OOK-8 are located in the 1st OFDM symbol, the time domain positions of the first type OOK symbols OOK-10 to OOK-17 are located in the 2nd OFDM symbol, the time domain position of the second type OOK symbol OOK-0 is located in the cyclic prefix of the 1st OFDM symbol, and the time domain position of the second type OOK symbol OOK-9 is located in the cyclic prefix of the 2nd OFDM symbol.

[0353] Based on the above technical solution, the present disclosure can increase the data carrying capacity of the first signal by carrying elements or information on the cyclic prefix of the OFDM symbol, while not affecting the current communication transmission method, thereby improving communication efficiency.

[0354] It should be noted that the first type of OOK symbol can be generated by the solution provided in the above embodiment, which will not be described in detail here. The second type of OOK symbol can be determined based on the first type of OOK symbol.

[0355] In some embodiments, the elements or information carried by the second type of OOK symbols are generated by:

[0356] Generated based on a time domain expression of a first length in a time domain expression of a last OOK symbol of the first type in a corresponding OFDM symbol; or

[0357] A time domain expression of a first length is generated based on the time domain expression of the corresponding OFDM symbol.

[0358] Exemplarily, the time domain expression of the first length in the time domain expression of the last OOK symbol of the first type in the corresponding OFDM symbol can be a time domain expression of the first length starting from the last OOK symbol of the first type, or a time domain expression of the first length before the end time of the last OOK symbol of the first type.

[0359] The time domain expression of the first length in the time domain expression of the corresponding OFDM symbol may be a time domain expression of the first length at the beginning of the time domain expression of the OFDM symbol, or a time domain expression of the first length before the end time of the OFDM symbol.

[0360] In some embodiments, the first length is less than or equal to the length of a cyclic prefix in an OFDM symbol.

[0361] Exemplarily, when one OFDM symbol includes M=4 OOK symbols, the length of the first sequence carried by the first signal is N seq=15, occupying 3 OFDM symbols, that is, 15 OOK symbols. Among them, the length of the corresponding second sequence N0=15. The number of first-type OOK symbols is 12, and the number of second-type OOK symbols is 3. Table 30 below is a binary sequence table.

[0362] Table 30 Binary sequence table

[0363]

[0364] Among them, the first signal can be selected from columns 1-3, or from columns 4-6. Taking the first column as an example, the second type of OOK symbols carry the first element "1", the sixth element "-1" and the eleventh element "1" respectively. The sequence carried by the first OFDM symbol is [-1, -1, -1, 1], the sequence carried by the second OFDM symbol is [-1, 1, 1, -1], and the sequence carried by the third OFDM symbol is [-1, 1, 1, 1].

[0365] Exemplarily, when one OFDM symbol includes M=8 OOK symbols, the length of the first sequence carried by the first signal is N seq =18, occupying 2 OFDM symbols, that is, 18 OOK symbols. Among them, the length of the corresponding second sequence N0=15, and the first sequence also includes N1=3 bits of padding elements (for example, 0 element padding). The number of first-type OOK symbols is 16, and the number of second-type OOK symbols is 2. The following table 31 is a binary sequence table.

[0366] Table 31 Binary sequence table

[0367]

[0368] Among them, the first signal can be selected from columns 1-3, or from columns 4-6. Taking the first column as an example, the second type of OOK symbol carries the first element "1" and the tenth element "-1" respectively. The sequence carried by the first OFDM symbol is [-1, -1, -1, 1, -1, -1, 1, 1], and the sequence carried by the second OFDM symbol is [1, -1, 1, 1, 1, -1, -1, -1].

[0369] Exemplarily, when one OFDM symbol includes M=8 OOK symbols, the length of the first sequence carried by the first signal is N seq =18, occupying 2 OFDM symbols, that is, 18 OOK symbols. Among them, the length of the corresponding second sequence N0=15, and the first sequence also includes N2=3 bits of cyclic shift elements. The number of first-type OOK symbols is 16, and the number of second-type OOK symbols is 2. The following table 32 is a binary sequence table.

[0370] Table 32 Binary sequence table

[0371]

[0372]

[0373] Among them, the first signal can be selected from columns 1-3, or from columns 4-6. Taking the first column as an example, the second type of OOK symbol carries the first element "1" and the tenth element "-1" respectively. The sequence carried by the first OFDM symbol is [-1, -1, -1, 1, -1, -1, 1, 1], and the sequence carried by the second OFDM symbol is [1, -1, 1, 1, 1, 1, -1, -1].

[0374] Exemplarily, when one OFDM symbol includes M=8 OOK symbols, the length of the first sequence carried by the first signal is N seq =36, occupying 4 OFDM symbols, that is, 36 OOK symbols. Among them, the length of the corresponding second sequence N0=31, and the first sequence also includes N1=5 bits of padding elements (for example, 0 element padding). The number of first type OOK symbols is 32, and the number of second type OOK symbols is 4. The following table 33 is a binary sequence table.

[0375] Table 33 Binary sequence table

[0376]

[0377]

[0378] Among them, the first signal can be selected from columns 1-4, or from columns 5-8. Taking the first column as an example, the second type of OOK symbols carry the first element "1", the 10th element "-1", the 19th element "1", and the 28th element "-1" respectively. The sequence carried by the first OFDM symbol is [-1, 1, 1, 1, -1, 1, -1, 1], the sequence carried by the second OFDM symbol is [-1, -1, -1, 1, -1, -1, 1, -1], the sequence carried by the third OFDM symbol is [1, -1, -1, 1, 1, 1, 1, 1], and the sequence carried by the fourth OFDM symbol is [-1, -1, 1, -1, -1, -1, -1, -1].

[0379] Exemplarily, when one OFDM symbol includes M=8 OOK symbols, the length of the first sequence carried by the first signal is N seq=36, occupying 4 OFDM symbols, that is, 36 OOK symbols. Among them, the length of the corresponding second sequence N0=31, and the first sequence also includes N1=5 bits of cyclic shift elements. The number of first-type OOK symbols is 32, and the number of second-type OOK symbols is 4. The following table 34 is a binary sequence table.

[0380] Table 34 Binary sequence table

[0381]

[0382] Among them, the first signal can be selected from columns 1-3, or from columns 4-6. Taking the first column as an example, the second type of OOK symbols carry the first element "1", the 10th element "1", the 19th element "-1", and the 28th element "1" respectively. The sequence carried by the first OFDM symbol is [1, 1, 1, 1, -1, -1, -1, 1], the sequence carried by the second OFDM symbol is [-1, 1, 1, 1, -1, 1, -1, 1], the sequence carried by the third OFDM symbol is [-1, -1, -1, 1, -1, -1, 1, -1], and the sequence carried by the fourth OFDM symbol is [1, -1, -1, 1, 1, 1, 1, 1].

[0383] Exemplarily, when one OFDM symbol includes M=8 OOK symbols, the length of the first sequence carried by the first signal is N seq =63, occupying 7 OFDM symbols, that is, 63 OOK symbols. Among them, the length of the corresponding second sequence N0=63. The number of first-type OOK symbols is 56, and the number of second-type OOK symbols is 7. The following table 35 is a binary sequence table.

[0384] Table 35 Binary sequence table

[0385]

[0386]

[0387] The first signal can be selected from columns 1 to 7. Taking the first column as an example, the second type of OOK symbols respectively carry the first element "1", the 10th element "-1", the 19th element "1", the 28th element "-1", the 37th element "-1", the 46th element "1", and the 55th element "1". The sequence carried by the first OFDM symbol is [1, 1, -1, -1, -1, -1, -1, 1], the sequence carried by the second OFDM symbol is [-1, -1, -1, 1, 1, -1, -1, -1], the sequence carried by the third OFDM symbol is [-1, 1, -1, -1, 1, 1, 1, 1], the sequence carried by the fourth OFDM symbol is [1, -1, -1, -1, 1, 1, 1, -1], the sequence carried by the fifth OFDM symbol is [1, -1, -1, 1, -1, 1, 1, -1], the sequence carried by the sixth OFDM symbol is [1, 1, -1, 1, 1, -1, -1, 1], and the sequence carried by the seventh OFDM symbol is [-1, 1, -1, 1, -1, 1, 1, 1].

[0388] Exemplarily, when one OFDM symbol includes M=8 OOK symbols, the length of the first sequence carried by the first signal is N seq =63, occupying 7 OFDM symbols, that is, 63 OOK symbols. Among them, the length of the corresponding second sequence N0=63. The number of first-type OOK symbols is 56, and the number of second-type OOK symbols is 7. The following table 36 is a binary sequence table.

[0389] Table 36 Binary sequence table

[0390]

[0391]

[0392]

[0393] The first signal can be selected from columns 1 to 7. Taking the first column as an example, the second type of OOK symbols respectively carry the first element "1", the 10th element "-1", the 19th element "1", the 28th element "1", the 37th element "1", the 46th element "-1", and the 55th element "-1". The sequence carried by the first OFDM symbol is [1, 1, -1, -1, -1, -1, -1, 1], the sequence carried by the second OFDM symbol is [1, 1, 1, 1, 1, 1, -1, -1], the sequence carried by the third OFDM symbol is [-1, 1, -1, 1, -1, -1, -1, 1], the sequence carried by the fourth OFDM symbol is [-1, -1, 1, 1, 1, 1, -1, 1], the sequence carried by the fifth OFDM symbol is [1, -1, 1, -1, 1, 1, -1, 1], the sequence carried by the sixth OFDM symbol is [-1, 1, 1, -1, 1, 1, -1, -1], and the sequence carried by the seventh OFDM symbol is [1, -1, -1, 1, -1, -1, -1, -1].

[0394] Exemplarily, when one OFDM symbol includes M=8 OOK symbols, the length of the first sequence carried by the first signal is N seq =63, occupying 7 OFDM symbols, that is, 63 OOK symbols. Among them, the length of the corresponding second sequence N0=63. The number of first-type OOK symbols is 56, and the number of second-type OOK symbols is 7. The following table 37 is a binary sequence table.

[0395] Table 37 Binary sequence table

[0396]

[0397]

[0398]

[0399] The first signal can be selected from columns 1 to 7. Taking the first column as an example, the second type of OOK symbols respectively carry the first element "1", the 10th element "1", the 19th element "1", the 28th element "-1", the 37th element "-1", the 46th element "1", and the 55th element "-1". The sequence carried by the first OFDM symbol is [-1, -1, -1, -1, -1, 1, 1, 1], the sequence carried by the second OFDM symbol is [1, 1, -1, 1, -1, 1, -1, 1], the sequence carried by the third OFDM symbol is [-1, -1, 1, 1, -1, 1, 1, 1], the sequence carried by the fourth OFDM symbol is [1, 1, -1, 1, -1, 1, -1], the sequence carried by the fifth OFDM symbol is [1, 1, 1, -1, -1, 1, -1], the sequence carried by the sixth OFDM symbol is [1, 1, 1, -1, -1, 1, -1, 1], and the sequence carried by the seventh OFDM symbol is [-1, -1, 1, 1, -1, -1, -1, -1].

[0400] Exemplarily, when one OFDM symbol includes M=8 OOK symbols, the length of the first sequence carried by the first signal is N seq =63, occupying 7 OFDM symbols, that is, 63 OOK symbols. Among them, the length of the corresponding second sequence N0=63. The number of first-type OOK symbols is 56, and the number of second-type OOK symbols is 7. The following table 38 is a binary sequence table.

[0401] Table 38 Binary sequence table

[0402]

[0403]

[0404]

[0405] The first signal can be selected from columns 1 to 7. Taking the first column as an example, the second type of OOK symbols respectively carry the first element "1", the 10th element "1", the 19th element "-1", the 28th element "-1", the 37th element "1", the 46th element "-1", and the 55th element "1". The sequence carried by the first OFDM symbol is [-1, -1, -1, -1, -1, 1, 1, 1], the sequence carried by the second OFDM symbol is [-1, -1, 1, -1, -1, 1, -1, 1], the sequence carried by the third OFDM symbol is [1, -1, -1, 1, 1, -1, 1, -1], the sequence carried by the fourth OFDM symbol is [-1, -1, 1, -1, -1, -1, 1, -1], the sequence carried by the fifth OFDM symbol is [1, -1, 1, 1, 1, 1, 1, 1], the sequence carried by the sixth OFDM symbol is [1, -1, 1, 1, 1, -1, -1, -1], and the sequence carried by the seventh OFDM symbol is [1, -1, -1, 1, 1, 1, -1, 1].

[0406] Exemplarily, when one OFDM symbol includes M=8 OOK symbols, the length of the first sequence carried by the first signal is N seq =63, occupying 7 OFDM symbols, that is, 63 OOK symbols. Among them, the length of the corresponding second sequence N0=63. The number of first-type OOK symbols is 56, and the number of second-type OOK symbols is 7. The following table 39 is a binary sequence table.

[0407] Table 39 Binary sequence table

[0408]

[0409]

[0410]

[0411] The first signal can be selected from columns 1 to 7. Taking the first column as an example, the second type of OOK symbols respectively carry the first element "1", the 10th element "-1", the 19th element "-1", the 28th element "1", the 37th element "1", the 46th element "1", and the 55th element "-1". The sequence carried by the first OFDM symbol is [-1, -1, -1, -1, -1, 1, 1, 1], the sequence carried by the second OFDM symbol is [-1, -1, -1, 1, -1, -1, 1, -1], the sequence carried by the third OFDM symbol is [-1, 1, 1, -1, 1, 1, -1, -1], the sequence carried by the fourth OFDM symbol is [-1, 1, 1, -1, 1, 1, 1], the sequence carried by the fifth OFDM symbol is [-1, 1, 1, 1, 1, -1, -1, 1], the sequence carried by the sixth OFDM symbol is [-1, -1, -1, 1, -1, 1, -1, 1], and the sequence carried by the seventh OFDM symbol is [-1, 1, 1, 1, 1, 1, -1].

[0412] Exemplarily, when one OFDM symbol includes M=8 OOK symbols, the length of the first sequence carried by the first signal is N seq =63, occupying 7 OFDM symbols, that is, 63 OOK symbols. Among them, the length of the corresponding second sequence N0=63. The number of first-type OOK symbols is 56, and the number of second-type OOK symbols is 7. The following table 40 is a binary sequence table.

[0413] Table 40 Binary sequence table

[0414]

[0415]

[0416] The first signal can be selected from columns 1 to 7. Taking the first column as an example, the second type of OOK symbols respectively carry the first element "1", the 10th element "1", the 19th element "-1", the 28th element "1", the 37th element "-1", the 46th element "-1", and the 55th element "1". The sequence carried by the first OFDM symbol is [1, 1, -1, -1, -1, -1, -1, 1], the sequence carried by the second OFDM symbol is [-1, 1, 1, 1, -1, -1, 1, 1], the sequence carried by the third OFDM symbol is [-1, -1, 1, 1, 1, -1, 1, -1], the sequence carried by the fourth OFDM symbol is [1, 1, 1, 1, 1, -1, 1, 1], the sequence carried by the fifth OFDM symbol is [1, -1, -1, -1, 1, -1, -1, -1], the sequence carried by the sixth OFDM symbol is [1, -1, 1, 1, -1, -1, 1, -1], and the sequence carried by the seventh OFDM symbol is [-1, 1, -1, -1, -1, -1, 1, -1, 1].

[0417] Exemplarily, when one OFDM symbol includes M=8 OOK symbols, the length of the first sequence carried by the first signal is N seq =63, occupying 7 OFDM symbols, that is, 63 OOK symbols. Among them, the length of the corresponding second sequence N0=63. The number of first-type OOK symbols is 56, and the number of second-type OOK symbols is 7. The following table 41 is a binary sequence table.

[0418] Table 41 Binary sequence table

[0419]

[0420]

[0421] The first signal can be selected from columns 1 to 7. Taking the first column as an example, the second type of OOK symbols respectively carry the first element "1", the 10th element "-1", the 19th element "1", the 28th element "-1", the 37th element "-1", the 46th element "1", and the 55th element "1". The sequence carried by the first OFDM symbol is [1, 1, -1, -1, -1, -1, -1, 1], the sequence carried by the second OFDM symbol is [-1, -1, -1, 1, 1, -1, -1, -1], the sequence carried by the third OFDM symbol is [-1, 1, -1, -1, 1, 1, 1, 1], the sequence carried by the fourth OFDM symbol is [1, -1, -1, -1, 1, 1, 1, -1], the sequence carried by the fifth OFDM symbol is [1, -1, -1, 1, -1, 1, 1, -1], the sequence carried by the sixth OFDM symbol is [1, 1, -1, 1, 1, -1, -1, 1], and the sequence carried by the seventh OFDM symbol is [-1, 1, -1, 1, -1, 1, 1, 1].

[0422] Exemplarily, when one OFDM symbol includes M=8 OOK symbols, the length of the first sequence carried by the first signal is N seq =63, occupying 7 OFDM symbols, that is, 63 OOK symbols. Among them, the length of the corresponding second sequence N0=63. The number of first-type OOK symbols is 56, and the number of second-type OOK symbols is 7. The following table 42 is a binary sequence table.

[0423] Table 42 Binary sequence table

[0424]

[0425]

[0426] The first signal can be selected from columns 1 to 7. Taking the first column as an example, the second type of OOK symbols respectively carry the first element "1", the 10th element "-1", the 19th element "1", the 28th element "1", the 37th element "1", the 46th element "-1", and the 55th element "-1". The sequence carried by the first OFDM symbol is [1, 1, -1, -1, -1, -1, -1, 1], the sequence carried by the second OFDM symbol is [1, 1, 1, 1, 1, 1, -1, -1], the sequence carried by the third OFDM symbol is [-1, 1, -1, 1, -1, -1, -1, 1], the sequence carried by the fourth OFDM symbol is [-1, -1, 1, 1, 1, 1, -1, 1], the sequence carried by the fifth OFDM symbol is [1, -1, 1, -1, 1, 1, -1, 1], the sequence carried by the sixth OFDM symbol is [-1, 1, 1, -1, 1, 1, -1, -1], and the sequence carried by the seventh OFDM symbol is [1, -1, -1, 1, -1, -1, -1, -1].

[0427] Exemplarily, when one OFDM symbol includes M=8 OOK symbols, the length of the first sequence carried by the first signal is N seq =63, occupying 7 OFDM symbols, that is, 63 OOK symbols. Among them, the length of the corresponding second sequence N0=63. The number of first-type OOK symbols is 56, and the number of second-type OOK symbols is 7. The following table 43 is a binary sequence table.

[0428] Table 43 Binary sequence table

[0429]

[0430]

[0431]

[0432] The first signal can be selected from columns 1 to 7. Taking the first column as an example, the second type of OOK symbols respectively carry the first element "1", the 10th element "1", the 19th element "1", the 28th element "-1", the 37th element "-1", the 46th element "1", and the 55th element "-1". The sequence carried by the first OFDM symbol is [-1, -1, -1, -1, -1, 1, 1, 1], the sequence carried by the second OFDM symbol is [1, 1, -1, 1, -1, 1, -1, 1], the sequence carried by the third OFDM symbol is [-1, -1, 1, 1, -1, 1, 1, 1], the sequence carried by the fourth OFDM symbol is [1, 1, -1, 1, -1, 1, -1], the sequence carried by the fifth OFDM symbol is [1, 1, 1, -1, -1, 1, -1], the sequence carried by the sixth OFDM symbol is [1, 1, 1, -1, -1, 1, -1, 1], and the sequence carried by the seventh OFDM symbol is [-1, -1, 1, 1, -1, -1, -1, -1].

[0433] Exemplarily, when one OFDM symbol includes M=8 OOK symbols, the length of the first sequence carried by the first signal is N seq =63, occupying 7 OFDM symbols, that is, 63 OOK symbols. Among them, the length of the corresponding second sequence N0=63. The number of first-type OOK symbols is 56, and the number of second-type OOK symbols is 7. The following table 44 is a binary sequence table.

[0434] Table 44 Binary sequence table

[0435]

[0436]

[0437]

[0438] The first signal can be selected from columns 1 to 7. Taking the first column as an example, the second type of OOK symbols respectively carry the first element "1", the 10th element "1", the 19th element "-1", the 28th element "-1", the 37th element "1", the 46th element "-1", and the 55th element "1". The sequence carried by the first OFDM symbol is [-1, -1, -1, -1, -1, 1, 1, 1], the sequence carried by the second OFDM symbol is [-1, -1, 1, -1, -1, 1, -1, 1], the sequence carried by the third OFDM symbol is [1, -1, -1, 1, 1, -1, 1, -1], the sequence carried by the fourth OFDM symbol is [-1, -1, 1, -1, -1, -1, 1, -1], the sequence carried by the fifth OFDM symbol is [1, -1, 1, 1, 1, 1, 1, 1], the sequence carried by the sixth OFDM symbol is [1, -1, 1, 1, 1, -1, -1, -1], and the sequence carried by the seventh OFDM symbol is [1, -1, -1, 1, 1, 1, -1, 1].

[0439] Exemplarily, when one OFDM symbol includes M=8 OOK symbols, the length of the first sequence carried by the first signal is N seq =63, occupying 7 OFDM symbols, that is, 63 OOK symbols. Among them, the length of the corresponding second sequence N0=63. The number of first-type OOK symbols is 56, and the number of second-type OOK symbols is 7. The following table 45 is a binary sequence table.

[0440] Table 45 Binary sequence table

[0441]

[0442]

[0443]

[0444] The first signal can be selected from columns 1 to 7. Taking the first column as an example, the second type of OOK symbols respectively carry the first element "1", the 10th element "-1", the 19th element "-1", the 28th element "1", the 37th element "1", the 46th element "1", and the 55th element "-1". The sequence carried by the first OFDM symbol is [-1, -1, -1, -1, -1, 1, 1, 1], the sequence carried by the second OFDM symbol is [-1, -1, -1, 1, -1, -1, 1, -1], the sequence carried by the third OFDM symbol is [-1, 1, 1, -1, 1, 1, -1, -1], the sequence carried by the fourth OFDM symbol is [-1, 1, 1, -1, 1, 1, 1], the sequence carried by the fifth OFDM symbol is [-1, 1, 1, 1, 1, -1, -1, 1], the sequence carried by the sixth OFDM symbol is [-1, -1, -1, 1, -1, 1, -1, 1], and the sequence carried by the seventh OFDM symbol is [-1, 1, 1, 1, 1, 1, -1].

[0445] Exemplarily, when one OFDM symbol includes M=8 OOK symbols, the length of the first sequence carried by the first signal is N seq =63, occupying 7 OFDM symbols, that is, 63 OOK symbols. Among them, the length of the corresponding second sequence N0=63. The number of first-type OOK symbols is 56, and the number of second-type OOK symbols is 7. The following table 46 is a binary sequence table.

[0446] Table 46 Binary sequence table

[0447]

[0448]

[0449]

[0450] The first signal can be selected from columns 1 to 7. Taking the first column as an example, the second type of OOK symbols respectively carry the first element "1", the 10th element "1", the 19th element "-1", the 28th element "1", the 37th element "-1", the 46th element "-1", and the 55th element "1". The sequence carried by the first OFDM symbol is [1, 1, -1, -1, -1, -1, -1, 1], the sequence carried by the second OFDM symbol is [-1, 1, 1, 1, -1, -1, 1, 1], the sequence carried by the third OFDM symbol is [-1, -1, 1, 1, 1, -1, 1, -1], the sequence carried by the fourth OFDM symbol is [1, 1, 1, 1, 1, -1, 1, 1], the sequence carried by the fifth OFDM symbol is [1, -1, -1, -1, 1, -1, -1, -1], the sequence carried by the sixth OFDM symbol is [1, -1, 1, 1, -1, -1, 1, -1], and the sequence carried by the seventh OFDM symbol is [-1, 1, -1, -1, -1, -1, 1, -1, 1].

[0451] Figure 8 Flow chart of a signal transmission method provided by an embodiment of the present disclosure. Figure 8 As shown, the method comprises the following steps:

[0452] Step 801: Receive a first signal.

[0453] The first signal is used to carry at least one first sequence; the first signal occupies at least one on-off keying OOK symbol or at least one orthogonal frequency division multiplexing OFDM symbol.

[0454] In some embodiments, the method further includes step 802 .

[0455] Step 802: Decode the signal transmitted on the cyclic prefix and data part of the OFDM symbol in the first signal to obtain data information.

[0456] The OFDM symbol consists of a cyclic prefix and a data part, and the data part refers to the part after the cyclic prefix in the OFDM symbol.

[0457] Exemplarily, after receiving the first signal, the second node can decode the signal transmitted on the cyclic prefix and data part of the OFDM symbol in the first signal to obtain the sequence element information carried by the cyclic prefix and data part of the OFDM symbol in the first signal.

[0458] Based on the above technical solution, the present invention can decode the signal transmitted on the cyclic prefix and data part of the OFDM symbol in the first signal to realize the carrying of elements or information on the cyclic prefix of the OFDM symbol, thereby increasing the data carrying capacity of the first signal, while not affecting the current communication transmission method and improving communication efficiency.

[0459] In some embodiments, the data information carried by at least one OOK symbol includes M elements; M is a positive integer, and the M elements satisfy at least one of the following:

[0460] including at least one element whose value is a first value;

[0461] The number of elements whose value is the first value accounts for half of the M elements;

[0462] The number of elements whose value is the first value is within the first interval;

[0463] The number of elements whose value is the second value accounts for half of the M elements;

[0464] The number of elements whose value is the second value is within the second interval.

[0465] The last element of the M elements has a value of 0 or -1.

[0466] In some embodiments, the first sequence is determined by at least one of:

[0467] The corresponding second sequence;

[0468] a corresponding second sequence and at least one filler element;

[0469] A corresponding second sequence and at least one cyclic shift element; the cyclic shift element is an element in the second sequence.

[0470] In some embodiments, feedback polynomials of the second sequences respectively corresponding to at least one first sequence are the same.

[0471] In some embodiments, at least one first sequence is taken from a first sequence in a first sequence set among multiple first sequence sets; feedback polynomials of second sequences corresponding to the multiple first sequence sets are different or configured separately or independently.

[0472] In some embodiments, when the difference between the number of elements in the first sequence and the number of elements in the corresponding second sequence is less than or equal to a first threshold, the first sequence consists of the corresponding second sequence and at least one padding element; and / or,

[0473] When the difference between the number of elements in the first sequence and the number of elements in the corresponding second sequence is greater than or equal to the second threshold, the first sequence consists of the corresponding second sequence and at least one cyclic shift element.

[0474] In some embodiments, when the difference between the number of OFDM symbols of the first signal configuration and the number of OFDM symbols carrying the first sequence is less than or equal to a third threshold, the first sequence consists of the corresponding second sequence and at least one padding element; and / or,

[0475] When the difference between the number of OFDM symbols of the first signal configuration and the number of OFDM symbols carrying the first sequence is greater than or equal to a fourth threshold, the first sequence consists of the corresponding second sequence and at least one cyclic shift element.

[0476] In some embodiments, the first signal includes a preamble signal and / or a synchronization signal; the first sequence carried by the synchronization signal is composed of at least one of the following or multiple repetitions of at least one of the following:

[0477] The first sequence carried by the preamble signal;

[0478] A first sequence and at least one padding element carried by the preamble signal;

[0479] The pilot signal carries a first sequence and at least one cyclic shift element; the cyclic shift element is an element in the second sequence;

[0480] The first sequence and the third sequence carried by the preamble signal; the third sequence is composed of some elements in the first sequence carried by the preamble signal.

[0481] In some embodiments, the length of the first sequence carried by the first signal is determined based at least on the number of OOK symbols in the OFDM symbol.

[0482] In some embodiments, when the number of OOK symbols in the OFDM symbol is adjusted from M1 to P*M1, the length of the first sequence carried by the first signal is increased from N to P*M1. seq1 Adjust to P*N seq1 ; N seq1 is greater than 0, P is greater than 0.

[0483] In some embodiments, the types of OOK symbols include a first type and a second type; wherein the time domain position of the first type of OOK symbols is located in the OFDM symbol, and the time domain position of the second type of OOK symbols is located in the cyclic prefix of the OFDM symbol.

[0484] In some embodiments, the second type of OOK symbols occupies all or part of the time domain resources of the cyclic prefix in the OFDM symbol.

[0485] In some embodiments, the first type of OOK symbols and the second type of OOK symbols occupy the same frequency domain resources.

[0486] In some embodiments, the element or information carried by the second type OOK symbol is the same as the element or information carried by the last first type OOK symbol in the corresponding OFDM symbol.

[0487] In some embodiments, the elements or information carried by the second type of OOK symbols are generated by:

[0488] Generated based on a time domain expression of a first length in a time domain expression of a last OOK symbol of the first type in a corresponding OFDM symbol; or

[0489] A time domain expression of a first length is generated based on the time domain expression of the corresponding OFDM symbol.

[0490] In some embodiments, the first length is less than or equal to the length of a cyclic prefix in an OFDM symbol.

[0491] For related instructions, please refer to the description in the above technical solution, which will not be repeated here.

[0492] It is understandable that, in order to implement the above functions, the communication device includes hardware structures and / or software modules corresponding to the execution of each function. Those skilled in the art should easily realize that, in combination with the algorithm steps of each example described in the embodiments of the present disclosure, the present disclosure can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in the form of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the present disclosure.

[0493] The embodiments of the present disclosure may divide the functional modules of the communication device according to the above method embodiments. For example, each functional module may be divided corresponding to each function, or two or more functions may be integrated into one functional module. The above integrated modules may be implemented in the form of hardware or software. It should be noted that the division of modules in the embodiments of the present disclosure is schematic and is only a logical function division. There may be other division methods in actual implementation. The following is an example of dividing each functional module corresponding to each function.

[0494] For example, taking the communication device as the first node in the above method embodiment as an example, Fig. 9 is a structural diagram of a first node provided in an embodiment of the present disclosure. The first node can execute the signal transmission method provided in the above method embodiment. Fig. 9 As shown, the first node 90 includes: a communication unit 901.

[0495] The communication unit 901 is used to send a first signal; the first signal is used to carry at least one first sequence; the first signal occupies at least one on-off keying OOK symbol or at least one orthogonal frequency division multiplexing OFDM symbol.

[0496] In some embodiments, the data information carried by at least one OOK symbol includes M elements; M is a positive integer, and the M elements satisfy at least one of the following:

[0497] including at least one element whose value is a first value;

[0498] The number of elements whose value is the first value accounts for half of the M elements;

[0499] The number of elements whose value is the first value is within the first interval;

[0500] The number of elements whose value is the second value accounts for half of the M elements;

[0501] The number of elements whose value is the second value is within the second interval.

[0502] The last element of the M elements has a value of 0 or -1.

[0503] In some embodiments, the first sequence is determined by at least one of:

[0504] The corresponding second sequence;

[0505] a corresponding second sequence and at least one filler element;

[0506] A corresponding second sequence and at least one cyclic shift element; the cyclic shift element is an element in the second sequence.

[0507] In some embodiments, feedback polynomials of the second sequences respectively corresponding to at least one first sequence are the same.

[0508] In some embodiments, at least one first sequence is taken from a first sequence in a first sequence set among multiple first sequence sets; feedback polynomials of second sequences corresponding to the multiple first sequence sets are different or configured separately or independently.

[0509] In some embodiments, when the difference between the number of elements in the first sequence and the number of elements in the corresponding second sequence is less than or equal to a first threshold, the first sequence consists of the corresponding second sequence and at least one padding element; and / or,

[0510] When the difference between the number of elements in the first sequence and the number of elements in the corresponding second sequence is greater than or equal to the second threshold, the first sequence consists of the corresponding second sequence and at least one cyclic shift element.

[0511] In some embodiments, when the difference between the number of OFDM symbols of the first signal configuration and the number of OFDM symbols carrying the first sequence is less than or equal to a third threshold, the first sequence consists of the corresponding second sequence and at least one padding element; and / or,

[0512] When the difference between the number of OFDM symbols of the first signal configuration and the number of OFDM symbols carrying the first sequence is greater than or equal to a fourth threshold, the first sequence consists of the corresponding second sequence and at least one cyclic shift element.

[0513] In some embodiments, the first signal includes a preamble signal and / or a synchronization signal; the first sequence carried by the synchronization signal is composed of at least one of the following or multiple repetitions of at least one of the following:

[0514] The first sequence carried by the preamble signal;

[0515] A first sequence and at least one padding element carried by the preamble signal;

[0516] The pilot signal carries a first sequence and at least one cyclic shift element; the cyclic shift element is an element in the second sequence;

[0517] The first sequence and the third sequence carried by the preamble signal; the third sequence is composed of some elements in the first sequence carried by the preamble signal.

[0518] In some embodiments, the length of the first sequence carried by the first signal is determined based at least on the number of OOK symbols in the OFDM symbol.

[0519] In some embodiments, when the number of OOK symbols in the OFDM symbol is adjusted from M1 to P*M1, the length of the first sequence carried by the first signal is increased from N to P*M1. seq1 Adjust to P*N seq1 ; N seq1 is greater than 0, P is greater than 0.

[0520] In some embodiments, the types of OOK symbols include a first type and a second type; wherein the time domain position of the first type of OOK symbols is located in the OFDM symbol, and the time domain position of the second type of OOK symbols is located in the cyclic prefix of the OFDM symbol.

[0521] In some embodiments, the second type of OOK symbols occupies all or part of the time domain resources of the cyclic prefix in the OFDM symbol.

[0522] In some embodiments, the first type of OOK symbols and the second type of OOK symbols occupy the same frequency domain resources.

[0523] In some embodiments, the element or information carried by the second type OOK symbol is the same as the element or information carried by the last first type OOK symbol in the corresponding OFDM symbol.

[0524] In some embodiments, the elements or information carried by the second type of OOK symbols are generated by:

[0525] Generated based on a time domain expression of a first length in a time domain expression of a last OOK symbol of the first type in a corresponding OFDM symbol; or

[0526] A time domain expression of a first length is generated based on the time domain expression of the corresponding OFDM symbol.

[0527] In some embodiments, the first length is less than or equal to the length of a cyclic prefix in an OFDM symbol.

[0528] For example, taking the communication device as the second node in the above method embodiment as an example, Fig.10 is a structural diagram of a second node provided in an embodiment of the present disclosure. The second node can execute the signal transmission method provided in the above method embodiment. Fig.10 As shown, the second node 100 includes: a communication unit 1001.

[0529] The communication unit 1001 is used to receive a first signal; the first signal is used to carry at least one first sequence; the first signal occupies at least one on-off keying OOK symbol or at least one orthogonal frequency division multiplexing OFDM symbol.

[0530] In some embodiments, the method further includes a processing unit 1002, which is used to decode the signal transmitted on the cyclic prefix and data part of the OFDM symbol in the first signal to obtain data information.

[0531] In some embodiments, the data information carried by at least one OOK symbol includes M elements; M is a positive integer, and the M elements satisfy at least one of the following:

[0532] including at least one element whose value is a first value;

[0533] The number of elements whose value is the first value accounts for half of the M elements;

[0534] The number of elements whose value is the first value is within the first interval;

[0535] The number of elements whose value is the second value accounts for half of the M elements;

[0536] The number of elements whose value is the second value is within the second interval.

[0537] The last element of the M elements has a value of 0 or -1.

[0538] In some embodiments, the first sequence is determined by at least one of:

[0539] The corresponding second sequence;

[0540] a corresponding second sequence and at least one filler element;

[0541] A corresponding second sequence and at least one cyclic shift element; the cyclic shift element is an element in the second sequence.

[0542] In some embodiments, feedback polynomials of the second sequences respectively corresponding to at least one first sequence are the same.

[0543] In some embodiments, at least one first sequence is taken from a first sequence in a first sequence set among multiple first sequence sets; feedback polynomials of second sequences corresponding to the multiple first sequence sets are different or configured separately or independently.

[0544] In some embodiments, when the difference between the number of elements in the first sequence and the number of elements in the corresponding second sequence is less than or equal to a first threshold, the first sequence consists of the corresponding second sequence and at least one padding element; and / or,

[0545] When the difference between the number of elements in the first sequence and the number of elements in the corresponding second sequence is greater than or equal to the second threshold, the first sequence consists of the corresponding second sequence and at least one cyclic shift element.

[0546] In some embodiments, when the difference between the number of OFDM symbols of the first signal configuration and the number of OFDM symbols carrying the first sequence is less than or equal to a third threshold, the first sequence consists of the corresponding second sequence and at least one padding element; and / or,

[0547] When the difference between the number of OFDM symbols of the first signal configuration and the number of OFDM symbols carrying the first sequence is greater than or equal to a fourth threshold, the first sequence consists of the corresponding second sequence and at least one cyclic shift element.

[0548] In some embodiments, the first signal includes a preamble signal and / or a synchronization signal; the first sequence carried by the synchronization signal is composed of at least one of the following or multiple repetitions of at least one of the following:

[0549] The first sequence carried by the preamble signal;

[0550] A first sequence and at least one padding element carried by the preamble signal;

[0551] The pilot signal carries a first sequence and at least one cyclic shift element; the cyclic shift element is an element in the second sequence;

[0552] The first sequence and the third sequence carried by the preamble signal; the third sequence is composed of some elements in the first sequence carried by the preamble signal.

[0553] In some embodiments, the length of the first sequence carried by the first signal is determined based at least on the number of OOK symbols in the OFDM symbol.

[0554] In some embodiments, when the number of OOK symbols in the OFDM symbol is adjusted from M1 to P*M1, the length of the first sequence carried by the first signal is increased from N to P*M1. seq1 Adjust to P*N seq1 ; N seq1 is greater than 0, P is greater than 0.

[0555] In some embodiments, the types of OOK symbols include a first type and a second type; wherein the time domain position of the first type of OOK symbols is located in the OFDM symbol, and the time domain position of the second type of OOK symbols is located in the cyclic prefix of the OFDM symbol.

[0556] In some embodiments, the second type of OOK symbols occupies all or part of the time domain resources of the cyclic prefix in the OFDM symbol.

[0557] In some embodiments, the first type of OOK symbols and the second type of OOK symbols occupy the same frequency domain resources.

[0558] In some embodiments, the element or information carried by the second type OOK symbol is the same as the element or information carried by the last first type OOK symbol in the corresponding OFDM symbol.

[0559] In some embodiments, the elements or information carried by the second type of OOK symbols are generated by:

[0560] Generated based on a time domain expression of a first length in a time domain expression of a last OOK symbol of the first type in a corresponding OFDM symbol; or

[0561] A time domain expression of a first length is generated based on the time domain expression of the corresponding OFDM symbol.

[0562] In some embodiments, the first length is less than or equal to the length of a cyclic prefix in an OFDM symbol.

[0563] In the case of implementing the functions of the above-mentioned integrated modules in the form of hardware, the embodiments of the present disclosure provide another possible structure of the communication device involved in the above-mentioned embodiments. Fig.11 As shown, the communication device 110 includes: a processor 1102 and a bus 1104. Optionally, the communication device 110 may further include a memory 1101; optionally, the communication device 110 may further include a communication interface 1103.

[0564] The processor 1102 may be a processor that implements or executes various exemplary logic blocks, modules, and circuits described in conjunction with the embodiments of the present disclosure. The processor 1102 may be a central processing unit, a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field programmable gate array, or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It may implement or execute various exemplary logic blocks, modules, and circuits described in conjunction with the embodiments of the present disclosure. The processor 1102 may also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and the like.

[0565] The communication interface 1103 is used to connect with other devices via a communication network, such as Ethernet, wireless access network, wireless local area network (WLAN), etc.

[0566] The memory 1101 may be a read-only memory (ROM) or other types of static storage devices that can store static information and instructions, a random access memory (RAM) or other types of dynamic storage devices that can store information and instructions, or an electrically erasable programmable read-only memory (EEPROM), a disk storage medium or other magnetic storage device, or any other medium that can be used to carry or store desired program codes in the form of instructions or data structures and can be accessed by a computer, but is not limited thereto.

[0567] As a possible implementation, the memory 1101 may exist independently of the processor 1102, and the memory 1101 may be connected to the processor 1102 via a bus 1104 to store instructions or program codes. When the processor 1102 calls and executes the instructions or program codes stored in the memory 1101, the method described in any embodiment of the present disclosure can be implemented.

[0568] In another possible implementation, the memory 1101 may also be integrated with the processor 1102 .

[0569] The bus 1104 may be an extended industry standard architecture (EISA) bus, etc. The bus 1104 may be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Fig.11 Only one thick line is used in the diagram, but this does not mean that there is only one bus or only one type of bus.

[0570] Some embodiments of the present disclosure provide a computer-readable storage medium (e.g., a non-transitory computer-readable storage medium) having computer program instructions stored therein. When the computer program instructions are executed on a computer, the computer executes a method as described in any of the above embodiments.

[0571] Exemplarily, the above-mentioned computer-readable storage media may include, but are not limited to: magnetic storage devices (e.g., hard disks, floppy disks or magnetic tapes, etc.), optical disks (e.g., compact disks (CD), digital versatile disks (DVD), etc.), smart cards and flash memory devices (e.g., erasable programmable read-only memory (EPROM), cards, sticks or key drives, etc.). The various computer-readable storage media described in the present disclosure may represent one or more devices and / or other machine-readable storage media for storing information. The term "machine-readable storage medium" may include, but is not limited to, wireless channels and various other media capable of storing, containing and / or carrying instructions and / or data.

[0572] An embodiment of the present disclosure provides a computer program product including instructions. When the computer program product is run on a computer, the computer is enabled to execute the method described in any one of the above embodiments.

[0573] The above is only a specific implementation of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any changes or substitutions within the technical scope disclosed in the present disclosure should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A signal transmission method, characterized in that: include: Send a first signal; the first signal is used to carry at least one first sequence; the first signal occupies at least one on-off keying OOK symbol or at least one orthogonal frequency division multiplexing OFDM symbol.

2. The method according to claim 1, characterized in that The data information carried by the at least one OOK symbol includes M elements, where M is a positive integer, and the M elements satisfy at least one of the following: including at least one element whose value is a first value; The number of elements whose value is the first value accounts for half of the M elements; The number of elements whose value is the first value is within the first interval; The number of elements whose value is the second value accounts for half of the M elements; The number of elements whose value is the second value is within the second interval; The last element of the M elements has a value of 0 or -1.

3. The method according to claim 1, characterized in that The first sequence is determined by at least one of the following: The corresponding second sequence; a corresponding second sequence and at least one filler element; A corresponding second sequence and at least one cyclic shift element; the cyclic shift element is an element in the second sequence.

4. The method according to claim 3, characterized in that: The feedback polynomials of the second sequences respectively corresponding to the at least one first sequence are the same.

5. The method according to claim 3, characterized in that: The at least one first sequence is taken from a first sequence in a first sequence set among multiple first sequence sets; feedback polynomials of second sequences respectively corresponding to the multiple first sequence sets are different or are respectively configured or independently configured.

6. The method according to claim 3, characterized in that When the difference between the number of elements in the first sequence and the number of elements in the corresponding second sequence is less than or equal to a first threshold, the first sequence consists of the corresponding second sequence and at least one padding element; and / or, When the difference between the number of elements in the first sequence and the number of elements in the corresponding second sequence is greater than or equal to a second threshold, the first sequence consists of the corresponding second sequence and at least one cyclic shift element.

7. The method according to claim 3, characterized in that When the difference between the number of OFDM symbols configured in the first signal and the number of OFDM symbols carrying the first sequence is less than or equal to a third threshold, the first sequence is composed of a corresponding second sequence and at least one padding element; and / or, When the difference between the number of OFDM symbols of the first signal configuration and the number of OFDM symbols carrying the first sequence is greater than or equal to a fourth threshold, the first sequence consists of a corresponding second sequence and at least one cyclic shift element.

8. The method according to claim 1, characterized in that The first signal includes a pilot signal and / or a synchronization signal; the first sequence carried by the synchronization signal is composed of at least one of the following or multiple repetitions of at least one of the following: A first sequence carried by the preamble signal; The first sequence and at least one padding element carried by the preamble signal; The pilot signal carries a first sequence and at least one cyclic shift element; the cyclic shift element is an element in the second sequence; The pilot signal carries a first sequence and a third sequence; the third sequence is composed of some elements in the first sequence carried by the pilot signal.

9. The method according to claim 1, characterized in that: The length of the first sequence carried by the first signal is determined based on at least the number of OOK symbols in the OFDM symbol.

10. The method according to claim 9, characterized in that The first sequence length carried by the first signal is determined based on at least the number of OOK symbols in the OFDM symbol, including: When the number of OOK symbols in the OFDM symbol is adjusted from M1 to P*M1, the length of the first sequence carried by the first signal is increased from N seq1 Adjust to P*N seq1 ; N seq1 is greater than 0, P is greater than 0.

11. The method according to claim 1, characterized in that: The types of the OOK symbols include a first type and a second type; wherein the time domain position of the first type of OOK symbols is located in the OFDM symbol, and the time domain position of the second type of OOK symbols is located in the cyclic prefix of the OFDM symbol.

12. The method according to claim 11, characterized in that The second type of OOK symbol occupies all or part of the time domain resources of the cyclic prefix in the OFDM symbol.

13. The method according to claim 11, characterized in that The first type of OOK symbols and the second type of OOK symbols occupy the same frequency domain resources.

14. The method according to claim 11, characterized in that The element or information carried by the second-type OOK symbol is the same as the element or information carried by the last first-type OOK symbol in the corresponding OFDM symbol.

15. The method according to claim 11, characterized in that The elements or information carried by the second type of OOK symbols are generated in the following manner: Generated based on a time domain expression of a first length in a time domain expression of a last OOK symbol of the first type in the corresponding OFDM symbol; or A time domain expression of a first length is generated based on the time domain expression of the corresponding OFDM symbol.

16. The method according to claim 15, characterized in that The first length is less than or equal to the length of a cyclic prefix in the OFDM symbol.

17. A signal transmission method, characterized in that: include: Receive a first signal; the first signal is used to carry at least one first sequence; the first signal occupies at least one on-off keying OOK symbol or at least one orthogonal frequency division multiplexing OFDM symbol.

18. The method according to claim 17, characterized in that The method further comprises: The signal transmitted on the cyclic prefix and data part of the OFDM symbol in the first signal is decoded to obtain data information.

19. The method according to claim 17, characterized in that The data information carried by the at least one OOK symbol includes M elements, where M is a positive integer, and the M elements satisfy at least one of the following: including at least one element whose value is a first value; The number of elements whose value is the first value accounts for half of the M elements; The number of elements whose value is the first value is within the first interval; The number of elements whose value is the second value accounts for half of the M elements; The number of elements whose value is the second value is within the second interval; The last element of the M elements has a value of 0 or -1.

20. The method according to claim 17, characterized in that The first sequence is determined by at least one of the following: The corresponding second sequence; a corresponding second sequence and at least one filler element; A corresponding second sequence and at least one cyclic shift element; the cyclic shift element is an element in the second sequence.

21. The method according to claim 20, characterized in that The feedback polynomials of the second sequences respectively corresponding to the at least one first sequence are the same.

22. The method according to claim 20, characterized in that The at least one first sequence is taken from a first sequence in a first sequence set among multiple first sequence sets; feedback polynomials of second sequences respectively corresponding to the multiple first sequence sets are different or are respectively configured or independently configured.

23. The method according to claim 20, characterized in that When the difference between the number of elements in the first sequence and the number of elements in the corresponding second sequence is less than or equal to a first threshold, the first sequence consists of the corresponding second sequence and at least one padding element; and / or, When the difference between the number of elements in the first sequence and the number of elements in the corresponding second sequence is greater than or equal to a second threshold, the first sequence consists of the corresponding second sequence and at least one cyclic shift element.

24. The method according to claim 20, characterized in that When the difference between the number of OFDM symbols configured in the first signal and the number of OFDM symbols carrying the first sequence is less than or equal to a third threshold, the first sequence is composed of a corresponding second sequence and at least one padding element; and / or, When the difference between the number of OFDM symbols of the first signal configuration and the number of OFDM symbols carrying the first sequence is greater than or equal to a fourth threshold, the first sequence consists of a corresponding second sequence and at least one cyclic shift element.

25. The method according to claim 17, characterized in that The first signal includes a pilot signal and / or a synchronization signal; the first sequence carried by the synchronization signal is composed of at least one of the following or multiple repetitions of at least one of the following: A first sequence carried by the preamble signal; The first sequence and at least one padding element carried by the preamble signal; The pilot signal carries a first sequence and at least one cyclic shift element; the cyclic shift element is an element in the second sequence; The pilot signal carries a first sequence and a third sequence; the third sequence is composed of some elements in the first sequence carried by the pilot signal.

26. The method according to claim 17, characterized in that The length of the first sequence carried by the first signal is determined based on at least the number of OOK symbols in the OFDM symbol.

27. The method according to claim 26, characterized in that The first sequence length carried by the first signal is determined based on at least the number of OOK symbols in the OFDM symbol, including: When the number of OOK symbols in the OFDM symbol is adjusted from M1 to P*M1, the length of the first sequence carried by the first signal is increased from N seq1 Adjust to P*N seq1 ; N seq1 is greater than 0, P is greater than 0.

28. The method according to claim 17, characterized in that The types of the OOK symbols include a first type and a second type; wherein the time domain position of the first type of OOK symbols is located in the OFDM symbol, and the time domain position of the second type of OOK symbols is located in the cyclic prefix of the OFDM symbol.

29. The method according to claim 28, characterized in that The second type of OOK symbol occupies all or part of the time domain resources of the cyclic prefix in the OFDM symbol.

30. The method according to claim 28, characterized in that The first type of OOK symbols and the second type of OOK symbols occupy the same frequency domain resources.

31. The method according to claim 28, characterized in that The element or information carried by the second-type OOK symbol is the same as the element or information carried by the last first-type OOK symbol in the corresponding OFDM symbol.

32. The method according to claim 28, characterized in that The elements or information carried by the second type of OOK symbols are generated in the following manner: Generated based on a time domain expression of a first length in a time domain expression of a last OOK symbol of the first type in the corresponding OFDM symbol; or A time domain expression of a first length is generated based on the time domain expression of the corresponding OFDM symbol.

33. The method according to claim 32, characterized in that The first length is less than or equal to the length of a cyclic prefix in the OFDM symbol.

34. A communication device, characterized in that: include: Memory and processor; Memory and processor coupling; The memory is used to store instructions executable by the processor; When the processor executes the instructions, the processor performs the method according to any one of claims 1 to 16, or the method according to any one of claims 17 to 33.

35. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer instructions, and when the computer instructions are executed on a computer, the computer is enabled to execute the method according to any one of claims 1 to 16, or to execute the method according to any one of claims 17 to 33.

36. A computer program product, characterized in that The computer program product comprises computer program instructions, which, when executed by a processor, implement the method according to any one of claims 1 to 16, or perform the method according to any one of claims 17 to 33.

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