Transmission processing method, device, communication equipment and readable storage medium

Abstract

The present application discloses a transmission processing method, apparatus, communication equipment and readable storage medium, which belongs to the field of communication technology. The transmission processing method of the embodiment of the present application comprises: the transmitting end splits the delayed Doppler domain resource block corresponding to each of the L antennas into L sub-blocks of the same size, where L is an integer greater than 1; the transmitting end performs delayed Doppler domain block coding on the L antennas with the sub-block as the granularity.

Description

Technical Field

[0001] The present application belongs to the field of communication technology, and in particular, relates to a transmission processing method, apparatus, communication equipment and readable storage medium. Background Art

[0002] With the development of communication technology, Orthogonal Time Frequency Space (OTFS) modulation technology has been applied in communication technology. This technology logically maps the information in a data packet of size M×N to an M×N grid point on the two-dimensional delay Doppler domain plane, that is, the pulse in each grid point modulates a symbol in the data packet. Using OTFS modulation technology to analyze the sparse channel matrix in the delay Doppler domain can make the packaging of the reference signal more compact and flexible. Since the delay Doppler domain has only been discussed for a single antenna, how to apply multiple-in multipleout (MIMO) in the delay Doppler domain has become an urgent problem to be solved. Summary of the invention

[0003] The embodiments of the present application provide a transmission processing method, an apparatus, a communication device, and a readable storage medium, which can implement MIMO applications in the delay Doppler domain.

[0004] In a first aspect, a transmission processing method is provided, comprising:

[0005] The transmitting end splits the delay-Doppler domain resource block corresponding to each of the L antennas into L sub-blocks of the same size, where L is an integer greater than 1;

[0006] The transmitting end performs delay-Doppler domain block coding on the L antennas using the sub-block as a granularity.

[0007] In a second aspect, a transmission processing device is provided, including:

[0008] A splitting module, used for splitting a delay Doppler domain resource block corresponding to each of L antennas of the transmitting end into L sub-blocks of the same size, where L is an integer greater than 1;

[0009] The coding module is used to perform delay-Doppler domain block coding on the L antennas with the sub-block as the granularity.

[0010] In a third aspect, a terminal is provided, comprising a processor, a memory, and a program or instruction stored in the memory and executable on the processor, wherein the program or instruction, when executed by the processor, implements the steps of the method described in the first aspect.

[0011] In a fourth aspect, a terminal is provided, including a processor and a communication interface, wherein:

[0012] The processor is used to split the delay Doppler domain resource block corresponding to each of the L antennas of the terminal into L sub-blocks of the same size, where L is an integer greater than 1; on the L antennas, delay Doppler domain block encoding is performed with the sub-block as the granularity.

[0013] In a fifth aspect, a network side device is provided, which includes a processor, a memory, and a program or instruction stored in the memory and executable on the processor, wherein the program or instruction, when executed by the processor, implements the steps of the method described in the first aspect.

[0014] In a sixth aspect, a network side device is provided, including a processor and a communication interface, wherein:

[0015] The processor is used to split the delay Doppler domain resource block corresponding to each of the L antennas of the network side device into L sub-blocks of the same size, where L is an integer greater than 1; on the L antennas, delay Doppler domain block encoding is performed with the sub-block as the granularity.

[0016] In a seventh aspect, a readable storage medium is provided, on which a program or instruction is stored. When the program or instruction is executed by a processor, the steps of the method described in the first aspect are implemented.

[0017] In an eighth aspect, an embodiment of the present application provides a chip, comprising a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run a program or instruction to implement the steps of the method described in the first aspect.

[0018] In a ninth aspect, a computer program / program product is provided, wherein the computer program / program product is stored in a non-volatile storage medium, and the computer program / program product is executed by at least one processor to implement the method as described in the first aspect.

[0019] In the embodiment of the present application, the transmitting end splits the delayed Doppler domain resource block corresponding to each of the L antennas into L sub-blocks of the same size; the transmitting end performs delayed Doppler domain block encoding with the sub-block as the granularity to obtain the delayed Doppler domain information carried on the delayed Doppler domain resource block. In this way, the application of MIMO can be realized in the delayed Doppler domain, thereby improving the transmission performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a structural diagram of a network system to which the embodiments of the present application can be applied;

[0021] Figure 2It is a schematic diagram of the channel response relationship in different planes;

[0022] Figure 3 is a schematic diagram of pilot mapping in the delay-Doppler domain;

[0023] Figure 4 is a flow chart of a transmission processing method provided by an embodiment of the present application;

[0024] Figures 5 to 12 This is an example diagram of different splitting methods in a transmission processing method provided in an embodiment of the present application;

[0025] Figures 13 to 17 This is an example diagram of the first protection interval setting under different splitting modes in a transmission processing method provided in an embodiment of the present application;

[0026] Figure 18 to Figure 19 This is an example diagram of pilot frequency setting in a transmission processing method provided in an embodiment of the present application;

[0027] Fig. 20 It is a schematic diagram of a flow framework of a transmission processing method provided in an embodiment of the present application;

[0028] Fig.21 is a structural diagram of a transmission processing device provided in an embodiment of the present application;

[0029] Fig. 22 is a structural diagram of a communication device provided in an embodiment of the present application;

[0030] Fig.23 is a structural diagram of a terminal provided in an embodiment of the present application;

[0031] Fig.24 It is a structural diagram of a network side device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of this application.

[0033] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way are interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first" and "second" are generally of the same type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally represents that the objects associated with each other are in an "or" relationship.

[0034] It is worth noting that the technology described in the embodiments of the present application is not limited to the Long Term Evolution (LTE) / LTE-Advanced (LTE-A) system, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency Division Multiple Access (SC-FDMA) and other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described technology can be used for the above-mentioned systems and radio technologies as well as for other systems and radio technologies. The following description describes a new radio (NR) system for example purposes, and NR terms are used in most of the following descriptions. These technologies can also be applied to applications other than NR system applications, such as the 6th Generation (6G) communication system.

[0035] Figure 1A block diagram of a wireless communication system applicable to an embodiment of the present application is shown. The wireless communication system includes a terminal 11 and a network side device 12. Among them, the terminal 11 can also be called a terminal device or a user terminal (User Equipment, UE), and the terminal 11 can be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer) or a notebook computer, a personal digital assistant (Personal Digital Assistant, PDA), a handheld computer, a netbook, an ultra-mobile personal computer (ultra-mobile personal computer, UMPC), a mobile Internet device (Mobile Internet Device, MID), a wearable device (Wearable Device) or a vehicle-mounted device (VUE), a pedestrian terminal (PUE) and other terminal side devices, and the wearable device includes: a smart watch, a bracelet, a headset, glasses, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiment of the present application. The network side device 12 can be a base station or a core network device, wherein the base station can be referred to as a node B, an evolved node B, an access point, a base transceiver station (Base TransceiverStation, BTS), a radio base station, a radio transceiver, a basic service set (Basic Service Set, BSS), an extended service set (Extended Service Set, ESS), a B node, an evolved B node (eNB), a home B node, a home evolved B node, a WLAN access point, a WiFi node, a transmitting and receiving point (Transmitting Receiving Point, TRP) or some other suitable term in the field. As long as the same technical effect is achieved, the base station is not limited to a specific technical vocabulary. It should be noted that in the embodiment of the present application, only the base station in the NR system is taken as an example, but the specific type of the base station is not limited.

[0036] For ease of understanding, some contents involved in the embodiments of the present application are described below:

[0037] 1. OTFS background

[0038] The delay and Doppler characteristics of the channel are essentially determined by the multipath channel. Signals that reach the receiver through different paths have different arrival times because of the difference in propagation distances. For example, two echoes s1 and s2 travel distances d1 and d2 respectively to reach the receiver, so the time difference between their arrival at the receiver is c is the speed of light. Due to the time difference between echoes s1 and s2, their coherent superposition on the receiver side causes the observed signal amplitude jitter. Similarly, the Doppler spread of a multipath channel is also caused by the multipath effect. We know that the Doppler effect is due to the relative speed between the transmitter and receiver. The signals that reach the receiver through different paths have different incident angles relative to the antenna normal, which causes differences in relative speed, and in turn causes different Doppler frequency shifts for signals on different paths. Assume that the original frequency of the signal is f0, the relative speed of the transmitter and receiver is Δv, and the angle of incidence between the signal and the normal of the receiving antenna is θ. Then: Obviously, when the two echoes s1 and s2 travel through different paths to reach the receiving antenna and have different incident angles θ1 and θ2, the Doppler frequency shifts Δf1 and Δf2 they obtain are also different. In summary, the signal seen by the receiver is the superposition of component signals with different delays and Dopplers from different paths. Delay Doppler analysis of the channel helps to collect the delay Doppler information of each path, thereby reflecting the delay Doppler response of the channel.

[0039] OTFS modulation technology logically maps the information in a data packet of size M×N to an M×N grid point on a two-dimensional delay Doppler plane, that is, the pulse in each grid point modulates a symbol in the data packet. Furthermore, by designing a set of orthogonal two-dimensional basis functions, the data set on the M×N delay Doppler domain plane is transformed to the N×M time-frequency domain plane. This transformation is mathematically called the Inverse Sympletic Finite Fourier Transform (ISFFT). Correspondingly, the transformation from the time-frequency domain to the delay Doppler domain is called the Sympletic Finite Fourier Transform (SFFT). The physical meaning behind it is that the delay and Doppler effect of the signal is actually a linear superposition effect of a series of echoes with different time and frequency offsets after the signal passes through a multi-path channel. In this sense, delay Doppler analysis and time-frequency domain analysis can be obtained by converting the inverse symplectic Fourier transform and the symplectic Fourier transform.

[0040] Therefore, the OTFS technology transforms the time-varying multipath channel into a time-invariant two-dimensional delay Doppler domain channel (within a certain duration), thereby directly reflecting the channel delay Doppler response characteristics caused by the geometric characteristics of the relative positions of the reflectors between the transceivers in the wireless link. In this way, OTFS eliminates the difficulty of traditional time-frequency domain analysis in tracking time-varying fading characteristics, and instead extracts all the diversity characteristics of the time-frequency domain channel through delay Doppler domain analysis. In actual systems, since the number of delay paths and Doppler frequency shifts of the channel is much smaller than the number of time domain and frequency domain responses of the channel, the channel impulse response matrix represented by the delay Doppler domain is sparse. Using the OTFS technology to analyze the sparse channel matrix in the delay Doppler domain can make the packaging of the reference signal more compact and flexible.

[0041] OTFS modulation defines the orthogonal amplitude modulation (QAM) symbol on the delay Doppler plane, transforms it to the time-frequency domain for transmission, and the receiving end returns to the delay Doppler domain for processing. Therefore, the wireless channel response analysis method in the delay Doppler domain can be introduced. When a signal passes through a linear time-varying wireless channel, the relationship between the expressions of its channel response in different planes is as follows: Figure 2 As shown:

[0042] exist Figure 2 In the SFFT transform formula, the SFFT transform formula is:

[0043] h(τ,v)=∫∫H(t,f)e -j2π(vt-fτ) dτdν (1)

[0044] Correspondingly, the transformation formula of ISFFT is:

[0045] H(t,f)=∫∫h(τ,ν)e j2π(vt-fτ) dτdν (2)

[0046] When the signal passes through a linear time-varying channel, let the time domain received signal be r(t), and its corresponding frequency domain received signal be R(f), and we have r(t) can be expressed as follows:

[0047] r(t)=s(t)*h(t)=∫g(t,τ)s(t-τ)dτ (3)

[0048] Depend on Figure 2 The relationship is known,

[0049] g(t,τ)=∫h(ν,τ)e j2πvt dv (4)

[0050] Substituting (4) into (3) yields:

[0051] r(t)=∫∫h(ν,τ)s(t-τ)e j2πvt dτdν (5)

[0052] Depend on Figure 2 From the relationship shown, the classical Fourier transform theory, and formula (5), we know that

[0053]

[0054] Among them, ν represents the delay variable, τ represents the Doppler variable, f represents the frequency variable, and t represents the time variable.

[0055] Equation (6) suggests that the analysis of the delay-Doppler domain in the OTFS system can be achieved by adding an additional signal processing process at the transceiver end based on the existing communication framework based on the time-frequency domain. Moreover, the additional signal processing consists only of Fourier transform, which can be completely implemented by existing hardware without the need for adding new modules. This good compatibility with the existing hardware system greatly facilitates the application of the OTFS system. In the actual system, the OTFS technology can be easily implemented as a pre- and post-processing module of a filtered OFDM system, so it has good compatibility with the multi-carrier system under the existing NR technology architecture.

[0056] When OTFS is combined with a multi-carrier system, the implementation method of the transmitter is as follows: the QAM symbol containing the information to be sent is carried by the waveform of the delay Doppler plane, and is converted into a waveform of the time-frequency domain plane in the traditional multi-carrier system through a two-dimensional ISFFT, and then through a symbol-level one-dimensional inverse fast Fourier transform (IFFT) and serial-to-parallel conversion, it becomes a time domain sampling point and is sent out.

[0057] The receiving end of the OTFS system is roughly the reverse process of the transmitting end: after the time domain sampling point is received by the receiver, it is transformed into a waveform on the time-frequency domain plane through parallel transmission conversion and symbol-level one-dimensional Fast Fourier Transform (FFT), and then converted into a waveform on the delay Doppler domain plane through SFFT. The QAM symbols carried by the delay Doppler domain waveform are processed by the receiver: including channel estimation and equalization, demodulation and decoding, etc.

[0058] The advantages of OTFS modulation are mainly reflected in the following aspects:

[0059] OTFS modulation converts the time-varying fading channel between transceivers in the time-frequency domain into a deterministic non-fading channel in the delay-Doppler domain. In the delay-Doppler domain, each symbol in a set of information symbols sent at a time experiences the same static channel response and signal-to-noise ratio (SNR).

[0060] The OTFS system uses the delayed Doppler image to resolve the reflectors in the physical channel and uses the receiving equalizer to coherently combine the energy from different reflection paths, which actually provides a static channel response without fading. Using the above static channel characteristics, the OTFS system does not need to introduce closed-loop channel adaptation like the OFDM system to cope with fast-changing channels, thereby improving the system robustness and reducing the complexity of system design.

[0061] Since the number of delay-Doppler states in the delay-Doppler domain is much smaller than the number of time-frequency states in the time-frequency domain, the channel in the OTFS system can be expressed in a very compact form. The channel estimation overhead of the OTFS system is less and more accurate.

[0062] Another advantage of OTFS is that it can handle extreme Doppler channels. By analyzing the delayed Doppler image under appropriate signal processing parameters, the Doppler characteristics of the channel can be fully presented, which is beneficial for signal analysis and processing in Doppler-sensitive scenarios (such as high-speed mobile and millimeter waves).

[0063] In summary, the channel estimation in the OTFS system adopts the following method: the transmitter maps the pilot pulse to the delayed Doppler domain, and the receiver estimates the channel response h(v,τ) in the delayed Doppler domain by analyzing the delayed Doppler image of the pilot. Figure 2 The relationship is used to obtain the channel response expression in the time-frequency domain, which is convenient for applying existing techniques in the time-frequency domain to perform signal analysis and processing. The pilot mapping on the delay Doppler plane can be done as follows: Figure 2 Way.

[0064] exist Figure 3 In the example, the sending signal is located at (l p ,k p ) of the single-point pilot (301), the area surrounding it is (2l v +1)(4k v +1)-1 protection symbol (302), and MN-(2l v +1)(4k v+1). At the receiving end, two offset peaks (such as 3021 and 3022) appear in the guard band of the delay Doppler domain grid point, which means that in addition to the main path, there are two secondary paths with different delay Dopplers in the channel. By measuring the amplitude, delay and Doppler parameters of all secondary paths, the delay Doppler domain expression of the channel is obtained, that is, h(v,τ). In order to prevent the data on the received signal grid from contaminating the pilot symbols and causing inaccurate channel estimation, the area of ​​the guard symbol should meet the following conditions:

[0065] l τ ≥τ max MΔf,k v ≥v max NΔT (7)

[0066] Among them, τ max and ν max are respectively the maximum delay and the maximum Doppler shift of all paths of the channel. A plurality of guard symbols 302 surround the single-point pilot 301 to form a guard band, and the plurality of guard symbols 302 correspond to blank resource elements.

[0067] The transmission processing method provided in the embodiment of the present application is described in detail below through some embodiments and their application scenarios in combination with the accompanying drawings.

[0068] See also Figure 4 , Figure 4 is a flow chart of a transmission processing method provided by an embodiment of the present application. Figure 4 As shown, the following steps are included:

[0069] Step 401: The transmitting end splits the delay-Doppler domain resource block corresponding to each of the L antennas into L sub-blocks of the same size, where L is an integer greater than 1.

[0070] In the embodiment of the present application, the transmitting end can be understood as a terminal or a network side device, and the L antennas are all or part of the antennas of the transmitting end. The transmitting end can use the L antennas to achieve multiple input and multiple output to improve transmission performance.

[0071] Optionally, in some embodiments, the L sub-blocks obtained by splitting the delayed Doppler domain resource blocks corresponding to different antennas have the same position in the delayed Doppler domain. For example, the delayed Doppler domain resource blocks corresponding to each antenna are split in the same manner, and the size and position of the L sub-blocks obtained by splitting the delayed Doppler domain resource blocks corresponding to each antenna are the same.

[0072] Step 402: The transmitting end performs delay-Doppler domain block coding on the L antennas using the sub-block as a granularity.

[0073] In the embodiment of the present application, after performing delay Doppler domain block coding with sub-block as granularity, the delay Doppler domain information carried on each delay Doppler domain resource block can be obtained and then transmitted. The specific process of transmission may include: first converting the delay Doppler information into the time-frequency domain, and then mapping it to the corresponding resource for transmission.

[0074] In the embodiment of the present application, the transmitting end splits the delayed Doppler domain resource block corresponding to each of the L antennas into L sub-blocks of the same size; the transmitting end performs delayed Doppler domain block encoding with the sub-block as the granularity to obtain the delayed Doppler domain information carried on the delayed Doppler domain resource block. In this way, the application of MIMO can be realized in the delayed Doppler domain, thereby improving the transmission performance.

[0075] Optionally, the delay-Doppler domain coordinates in each of the sub-blocks are continuous or cyclically continuous.

[0076] In the embodiment of the present application, the delay Doppler domain coordinates in the sub-block are continuous or cyclically continuous, which can be understood as the delay domain coordinates and Doppler domain coordinates of each grid point in the sub-block are continuous or cyclically continuous. Cyclic continuity can include cyclic continuity of delay domain coordinates, or cyclic continuity of Doppler domain coordinates. Cyclic continuity of delay domain coordinates can be understood as that a sub-block has two parts in the delay direction, the delay domain coordinates of the grid points in each part are continuous, and the coordinates of the delay domain grid points in one part contain the maximum delay domain coordinates, and the coordinates of the grid points in the other part contain the minimum delay domain coordinates; cyclic continuity of Doppler domain coordinates can be understood as that a sub-block has two parts in the Doppler direction, the Doppler domain coordinates of the grid points in each part are continuous, and the coordinates of the grid points in one part contain the maximum Doppler domain coordinates, and the Doppler coordinates of the grid points in the other part contain the minimum delay domain coordinates.

[0077] Optionally, in some embodiments, the splitting direction of the delay-Doppler domain resource block includes at least one of the following: a delay direction and a Doppler direction.

[0078] In the embodiment of the present application, the splitting along one direction is taken as an example for explanation. For example, when L is equal to 2, the splitting method is as follows: Figures 5 to 8 As shown in the figure, S ij represents the jth sub-block of the ith antenna. If the delay direction is continuously split into two sub-blocks, the split result of the delay Doppler domain resource block corresponding to the ith antenna is as follows: Figure 5 As shown in FIG. 1 , if the Doppler direction is continuously split into two sub-blocks, the split result of the delayed Doppler domain resource block corresponding to the i-th antenna is as follows: Figure 6As shown; if the delay direction is cyclically and continuously split into two sub-blocks, the split result of the delay Doppler domain resource block corresponding to the i-th antenna is as follows Figure 7 As shown in FIG. 1 , if the Doppler direction is cyclically and continuously split into two sub-blocks, the split result of the delayed Doppler domain resource block corresponding to the i-th antenna is as follows: Figure 8 shown.

[0079] When L is equal to 4, the splitting method is as follows Figures 9 to 12 As shown in the figure, S ij represents the jth sub-block of the ith antenna. If the delay direction is continuously split into 4 sub-blocks, the split result of the delay Doppler domain resource block corresponding to the ith antenna is as follows: Fig. 9 As shown in FIG. 1 , if the Doppler direction is continuously split into 4 sub-blocks, the split result of the delayed Doppler domain resource block corresponding to the i-th antenna is as follows: Fig.10 As shown; if the delay direction is cyclically and continuously split into 4 sub-blocks, the split result of the delay Doppler domain resource block corresponding to the i-th antenna is as follows Fig.11 As shown in FIG. 1 , if the Doppler direction is cyclically and continuously split into 4 sub-blocks, the split result of the delayed Doppler domain resource block corresponding to the i-th antenna is as follows: Fig.12 shown.

[0080] It should be noted that, although the order of the sub-blocks shown in the figure is arranged from left to right, or from bottom to top, it can actually be arranged in other ways, such as from right to left or from top to bottom, or even in a disordered order. Therefore, the j-th sub-block in the embodiment of the present application is not the j-th sub-block in the sorting mode defined in the accompanying drawings, but can also be the j-th sub-block in any specified sorting mode. In other words, the above j-th sub-block can be understood as the j-th sub-block under a certain logical sorting rule.

[0081] Optionally, in some embodiments, the transmitting end performs delay Doppler domain block coding with the sub-block as the granularity, and obtaining the delay Doppler domain information carried on the delay Doppler domain resource block includes:

[0082] Determine first delay-Doppler domain information carried on some sub-blocks among the L*L sub-blocks;

[0083] Mapping the first delay Doppler domain information based on the mapping relationship of the delay Doppler domain block coding to obtain the second delay Doppler domain information carried by the remaining sub-blocks in the L*L sub-blocks;

[0084] The L*L sub-blocks are all sub-blocks after the delay Doppler domain resource blocks corresponding to the L antennas are split.

[0085] In the embodiment of the present application, the above-mentioned antenna can be understood as a physical antenna, and can also be understood as an antenna port (for example, two or three physical antennas constitute an antenna port).

[0086] Optionally, when L=2, the part of the sub-blocks includes the first sub-block and the second sub-block, and the remaining sub-blocks include the third sub-block and the fourth sub-block, wherein,

[0087] The first sub-block is one of a first sub-block corresponding to a first antenna and a second sub-block corresponding to a second antenna, and the third sub-block is the other of the first sub-block corresponding to the first antenna and the second sub-block corresponding to the second antenna;

[0088] The second subblock is one of the second subblock corresponding to the first antenna and the first subblock corresponding to the second antenna, and the fourth subblock is the other of the second subblock corresponding to the first antenna and the first subblock corresponding to the second antenna.

[0089] In this embodiment of the present application, the second delay-Doppler domain information S3 carried by the third sub-block satisfies: represents taking the conjugate of each element in S1, where S1 represents the first delay Doppler domain information carried by the first sub-block, or represents information obtained by reordering the first delay Doppler domain information carried by the first sub-block;

[0090] The second delay-Doppler domain information S4 carried by the fourth sub-block satisfies: It means taking the conjugate of each element in S2, where S2 represents the first delayed Doppler domain information carried on the second sub-block, or represents the information obtained by reordering the first delayed Doppler domain information carried on the second sub-block.

[0091] For example, in some embodiments, the delay Doppler domain information S carried by the second sub-block of the first antenna may be configured first. 12 And the delay Doppler domain information S carried by the first sub-block of the first antenna 11 Then, the delayed Doppler domain information S carried by the first sub-block of the second antenna is determined according to the mapping relationship of the delayed Doppler domain block coding. 21 And the delay Doppler domain information S carried by the second sub-block of the second antenna 22 . Among them, the mapping relationship can satisfy:

[0092] Based on S 12 Taking the conjugate of each element in gives, Based on S11 Taking the conjugate of each element in gives;

[0093] or, based on Taking the conjugate of each element in gives, Based on S 12 Rearrange to get, based on Taking the conjugate of each element in gives, Based on S 11 Reorder to get.

[0094] Of course, in other embodiments, the value of the sub-block on the left side of the equal sign of the mapping relationship may be determined first, and then the value of the sub-block on the right side of the equal sign may be determined based on the mapping relationship.

[0095] Optionally, when L=4, the part of the sub-blocks includes a first sub-block, a second sub-block, a third sub-block and a fourth sub-block, and the remaining sub-blocks include a fifth sub-block, a sixth sub-block, a seventh sub-block and an eighth sub-block, wherein,

[0096] The first sub-block is one of the second sub-block corresponding to the first antenna and the first sub-block corresponding to the third antenna, and the fifth sub-block is the other of the second sub-block corresponding to the first antenna and the first sub-block corresponding to the third antenna;

[0097] The second sub-block is one of a first sub-block corresponding to the first antenna and a second sub-block corresponding to the third antenna, and the sixth sub-block is the other of the first sub-block corresponding to the first antenna and the second sub-block corresponding to the third antenna;

[0098] The third sub-block is one of the fourth sub-block corresponding to the second antenna and the third sub-block corresponding to the fourth antenna, and the seventh sub-block is the other of the fourth sub-block corresponding to the second antenna and the third sub-block corresponding to the fourth antenna;

[0099] The fourth subblock is one of the third subblock corresponding to the second antenna and the fourth subblock corresponding to the fourth antenna, and the eighth subblock is the other of the third subblock corresponding to the second antenna and the fourth subblock corresponding to the fourth antenna.

[0100] In this embodiment of the present application, the second delay-Doppler domain information S5 carried by the fifth sub-block satisfies: represents taking the conjugate of each element in S1, where S1 represents the first delay Doppler domain information carried by the first sub-block, or represents information obtained by reordering the first delay Doppler domain information carried by the first sub-block;

[0101] The second delay-Doppler domain information S6 carried by the sixth sub-block satisfies: represents taking a conjugate of each element in S2, where S2 represents the first delay Doppler domain information carried by the second sub-block, or represents information obtained by reordering the first delay Doppler domain information carried by the second sub-block;

[0102] The second delay-Doppler domain information S7 carried by the seventh sub-block satisfies: represents taking the conjugate of each element in S3, where S3 represents the first delay Doppler domain information carried on the third sub-block, or represents information obtained by reordering the first delay Doppler domain information carried on the third sub-block;

[0103] The second delay-Doppler domain information S8 carried by the eighth sub-block satisfies: It indicates taking the conjugate of each element in S4, where S4 indicates the first delay Doppler domain information carried on the fourth sub-block, or indicates information obtained by reordering the first delay Doppler domain information carried on the fourth sub-block.

[0104] For example, in some embodiments, the delay Doppler domain information S carried on the first sub-block of the first antenna may be configured first. 11 , the delay Doppler domain information S carried by the second sub-block of the first antenna 12 , the delay Doppler domain information S carried by the third sub-block of the second antenna 23 And the delay Doppler domain information S carried by the fourth sub-block of the second antenna 24 Then, the delayed Doppler domain information S carried by the first sub-block of the third antenna is determined according to the mapping relationship of the delayed Doppler domain block coding. 31 , the delay Doppler domain information S carried by the second sub-block of the third antenna 32 , the delay Doppler domain information S carried by the third sub-block of the fourth antenna 43 and the delay-Doppler domain information S carried by the 4th sub-block of the 4th antenna 44 . Among them, the mapping relationship can satisfy:

[0105] Based on S 12 Taking the conjugate of each element in gives, Based on S 11 Taking the conjugate of each element in gives, Based on S24 Taking the conjugate of each element in gives, Based on S 11 Taking the conjugate of each element in gives;

[0106] or, based on Taking the conjugate of each element in gives, Based on S 12 Rearrange to get, based on Taking the conjugate of each element in gives, Based on S 11 Rearrange to get, based on Taking the conjugate of each element in gives, Based on S 24 Rearrange to get, based on Taking the conjugate of each element in gives, Based on S 23 Reorder to get.

[0107] Of course, in other embodiments, the value of the sub-block on the left side of the equal sign of the mapping relationship may be determined first, and then the value of the sub-block on the right side of the equal sign may be determined based on the mapping relationship.

[0108] Optionally, in some embodiments, when L=4, the second delayed Doppler domain information carried on the ninth sub-block is configured to be 0, and the ninth sub-block is any sub-block in the partial sub-blocks except the first sub-block, the second sub-block, the third sub-block and the fourth sub-block.

[0109] Optionally, in some embodiments, a preset position of at least one of the sub-blocks is set to a first protection interval; the preset position includes at least one of the following: a preset delay position, a preset Doppler position.

[0110] It should be noted that the ith antenna can be understood as the ith antenna defined based on the logical order. Assuming that the antenna in the embodiment of the present application is a physical antenna, the first antenna can be understood as the first antenna in the actual sequence, or the mth antenna in the actual sequence, where m is an integer greater than 1, and the value of m is determined based on the logical order.

[0111] In this embodiment of the present application, the first protection interval satisfies any of the following:

[0112] The first protection interval is configured as 0;

[0113] The first guard interval is configured as a cyclic prefix of a transmission signal of a sub-block where the first guard interval is located in a delay direction;

[0114] The first guard interval is configured as a cyclic suffix of a transmission signal of a sub-block where the first guard interval is located in a delay direction;

[0115] The first guard interval is configured as a cyclic prefix of a transmission signal of a sub-block where the first guard interval is located in a Doppler direction;

[0116] The first guard interval is configured as a cyclic suffix of a transmission signal of a sub-block where the first guard interval is located in a Doppler direction.

[0117] Optionally, the position of the first protection interval may be set according to actual needs. For example, in some embodiments, the first protection interval includes at least one of the following:

[0118] a first sub-guard interval of at least one boundary of the sub-block in the delay direction;

[0119] The sub-block has a second sub-guard interval at least one boundary in the Doppler direction.

[0120] Please refer to Figures 13 to 17 As shown, the thick rectangular box indicates the position where the guard interval is set. Specifically, the guard interval can be set at at least one boundary in at least one direction of each sub-block. It should be understood that when the guard interval is set at a boundary in a certain direction, the positions of the guard intervals are located at the same side boundary of the corresponding sub-block (such as Fig.13 As shown, the position of each guard interval is located at the upper boundary of the corresponding sub-block, such as Fig.15 As shown, the position of each guard interval is located at the left boundary of the corresponding sub-block. When guard intervals are set at both boundaries in a certain direction, the manners of setting the guard interval information of the boundaries on both sides may be the same or different. For example, the guard interval of one boundary may use a cyclic prefix, and the guard interval of the other boundary may use a cyclic suffix.

[0121] Optionally, in some embodiments, the width of the first sub-guard interval is greater than or equal to a maximum delay of a target channel, and the target channel is a channel used to transmit the delay Doppler domain information.

[0122] Optionally, in some embodiments, the width of the second sub-guard interval is greater than or equal to twice the maximum Doppler of a target channel, and the target channel is a channel used to transmit the delayed Doppler domain information.

[0123] Optionally, in some embodiments, a pilot is configured in the first protection interval.

[0124] In the embodiment of the present application, the pilot may be a pulse pilot or a sequence pilot. When a pulse pilot is used, the pilots of all antennas are staggered by delaying Doppler domain resources, as shown in FIG. Fig.18 and Fig.19 When sequence pilot is used, the pilots of all antennas are orthogonal through the sequence.

[0125] Optionally, in some embodiments, after the transmitting end performs delay-Doppler domain block coding on the L antennas with the sub-block as a granularity, the method further includes:

[0126] The transmitting end transforms the delay Doppler domain information obtained by delay Doppler domain block coding into time-frequency domain information;

[0127] The transmitting end sends the time-frequency domain information.

[0128] Optionally, before the transmitting end sends the time-frequency domain information, the method further includes:

[0129] The transmitting end configures a second guard interval for the time-frequency domain information according to a preset time domain interval.

[0130] In the embodiment of the present application, the preset time domain interval is the time-frequency domain information configuration second guard interval can be understood as setting one or more time domain guard intervals per time domain interval. It should be understood that the second guard interval can be configured as 0, or as a cyclic prefix, or as a cyclic suffix.

[0131] Optionally, in some embodiments, the target information is determined by the sending end or agreed upon by a protocol; the target information includes at least one of the following:

[0132] Position information of the L sub-blocks;

[0133] The rules corresponding to the delay-Doppler domain block coding;

[0134] Configuration information of the guard interval;

[0135] The location of the pilot;

[0136] Pilot information.

[0137] Optionally, when the target information is determined by the sending end, the method further includes:

[0138] The sending end sends indication information to the receiving end, where the indication information is used to indicate the target information.

[0139] Optionally, the indication information is carried in at least one of the following: wireless resource control signaling; layer 1 signaling of the physical downlink control channel; information of the physical downlink shared channel; signaling of the media access control layer control unit; system information block; layer 1 signaling of the physical uplink control channel; information 1 of the physical random access channel; information 3 of the physical random access channel; information A of the physical random access channel; information of the physical uplink shared channel; Xn interface signaling; PC5 interface signaling; sidelink interface signaling.

[0140] It should be noted that, in the embodiment of the present application, the above indication information may include multiple sub-indication information, each sub-indication information is used to indicate at least one of the position information of the L sub-blocks, the rule corresponding to the delay Doppler domain block coding, the configuration information of the guard interval, the position of the pilot and the information of the pilot. When the indication information carries at least two of the above items, each item may contain the same sub-indication information, or different sub-indication information.

[0141] It should be noted that the transmission processing method provided in the embodiment of the present application can be executed by a transmission processing device, or a control module in the transmission processing device for executing the transmission processing method. In the embodiment of the present application, the transmission processing device provided in the embodiment of the present application is described by taking the transmission processing device executing the transmission processing device as an example.

[0142] In order to better understand this application, the following Fig. 20 The process framework of this application is described, which may specifically include the following process steps.

[0143] 1. According to the same splitting method, the delay-Doppler domain resource block of each antenna is split into sub-blocks.

[0144] 2. Add the first guard interval in the delay-Doppler domain.

[0145] 3. Add pilot frequency.

[0146] 4. Delay-Doppler domain block coding with sub-block granularity;

[0147] 5. Perform OTFS modulation.

[0148] 6. Add a second guard interval in the time-frequency domain.

[0149] It should be understood that the specific implementation of the above processes can refer to the above transmission processing method embodiment, which will not be repeated here.

[0150] See also Fig.21 , Fig.21 is a structural diagram of a transmission processing device provided in an embodiment of the present application, such as Fig.21 As shown, the transmission processing device 2100 includes:

[0151] A splitting module 2101 is used to split the delay Doppler domain resource block corresponding to each of the L antennas of the transmitting end into L sub-blocks of the same size, where L is an integer greater than 1;

[0152] The coding module 2102 is used to perform delay-Doppler domain block coding on the L antennas with the sub-block as the granularity.

[0153] Optionally, the delay-Doppler domain coordinates in each of the sub-blocks are continuous or cyclically continuous.

[0154] Optionally, the splitting direction of the delay-Doppler domain resource block includes at least one of the following: a delay direction and a Doppler direction.

[0155] Optionally, the encoding module 2102 includes:

[0156] A determining unit, configured to determine first delay-Doppler domain information carried on some sub-blocks among the L*L sub-blocks;

[0157] A mapping unit, configured to map the first delay Doppler domain information based on a mapping relationship of delay Doppler domain block coding to obtain second delay Doppler domain information carried on the remaining sub-blocks of the L*L sub-blocks;

[0158] The L*L sub-blocks are all sub-blocks after the delay Doppler domain resource blocks corresponding to the L antennas are split.

[0159] Optionally, when L=2, the part of the sub-blocks includes the first sub-block and the second sub-block, and the remaining sub-blocks include the third sub-block and the fourth sub-block, wherein,

[0160] The first sub-block is one of a first sub-block corresponding to a first antenna and a second sub-block corresponding to a second antenna, and the third sub-block is the other of the first sub-block corresponding to the first antenna and the second sub-block corresponding to the second antenna;

[0161] The second subblock is one of the second subblock corresponding to the first antenna and the first subblock corresponding to the second antenna, and the fourth subblock is the other of the second subblock corresponding to the first antenna and the first subblock corresponding to the second antenna.

[0162] Optionally, the second delay-Doppler domain information S3 carried by the third sub-block satisfies: represents taking the conjugate of each element in S1, where S1 represents the first delay Doppler domain information carried by the first sub-block, or represents information obtained by reordering the first delay Doppler domain information carried by the first sub-block;

[0163] The second delay-Doppler domain information S4 carried by the fourth sub-block satisfies: It means taking the conjugate of each element in S2, where S2 represents the first delayed Doppler domain information carried on the second sub-block, or represents the information obtained by reordering the first delayed Doppler domain information carried on the second sub-block.

[0164] Optionally, when L=4, the part of the sub-blocks includes a first sub-block, a second sub-block, a third sub-block and a fourth sub-block, and the remaining sub-blocks include a fifth sub-block, a sixth sub-block, a seventh sub-block and an eighth sub-block, wherein,

[0165] The first sub-block is one of the second sub-block corresponding to the first antenna and the first sub-block corresponding to the third antenna, and the fifth sub-block is the other of the second sub-block corresponding to the first antenna and the first sub-block corresponding to the third antenna;

[0166] The second sub-block is one of a first sub-block corresponding to the first antenna and a second sub-block corresponding to the third antenna, and the sixth sub-block is the other of the first sub-block corresponding to the first antenna and the second sub-block corresponding to the third antenna;

[0167] The third sub-block is one of the fourth sub-block corresponding to the second antenna and the third sub-block corresponding to the fourth antenna, and the seventh sub-block is the other of the fourth sub-block corresponding to the second antenna and the third sub-block corresponding to the fourth antenna;

[0168] The fourth subblock is one of the third subblock corresponding to the second antenna and the fourth subblock corresponding to the fourth antenna, and the eighth subblock is the other of the third subblock corresponding to the second antenna and the fourth subblock corresponding to the fourth antenna.

[0169] Optionally, the second delay-Doppler domain information S5 carried by the fifth sub-block satisfies: represents taking the conjugate of each element in S1, where S1 represents the first delay Doppler domain information carried by the first sub-block, or represents information obtained by reordering the first delay Doppler domain information carried by the first sub-block;

[0170] The second delay-Doppler domain information S6 carried by the sixth sub-block satisfies: represents taking a conjugate of each element in S2, where S2 represents the first delay Doppler domain information carried by the second sub-block, or represents information obtained by reordering the first delay Doppler domain information carried by the second sub-block;

[0171] The second delay-Doppler domain information S7 carried by the seventh sub-block satisfies: represents taking the conjugate of each element in S3, where S3 represents the first delay Doppler domain information carried on the third sub-block, or represents information obtained by reordering the first delay Doppler domain information carried on the third sub-block;

[0172] The second delay-Doppler domain information S8 carried by the eighth sub-block satisfies: It indicates taking the conjugate of each element in S4, where S4 indicates the first delay Doppler domain information carried on the fourth sub-block, or indicates information obtained by reordering the first delay Doppler domain information carried on the fourth sub-block.

[0173] Optionally, the second delay Doppler domain information carried on the ninth sub-block is configured to be 0, and the ninth sub-block is any sub-block in the partial sub-blocks except the first sub-block, the second sub-block, the third sub-block and the fourth sub-block.

[0174] Optionally, a preset position of at least one of the sub-blocks is set to a first protection interval; the preset position includes at least one of the following: a preset delay position, a preset Doppler position.

[0175] Optionally, the first protection interval satisfies any of the following:

[0176] The first protection interval is configured as 0;

[0177] The first guard interval is configured as a cyclic prefix of a transmission signal of a sub-block where the first guard interval is located in a delay direction;

[0178] The first guard interval is configured as a cyclic suffix of a transmission signal of a sub-block where the first guard interval is located in a delay direction;

[0179] The first guard interval is configured as a cyclic prefix of a transmission signal of a sub-block where the first guard interval is located in a Doppler direction;

[0180] The first guard interval is configured as a cyclic suffix of a transmission signal of a sub-block where the first guard interval is located in a Doppler direction.

[0181] Optionally, the first protection interval includes at least one of the following:

[0182] a first sub-guard interval of at least one boundary of the sub-block in the delay direction;

[0183] The sub-block has a second sub-guard interval at least one boundary in the Doppler direction.

[0184] Optionally, a width of the first sub-guard interval is greater than or equal to a maximum delay of a target channel, and the target channel is a channel used to transmit the delay Doppler domain information.

[0185] Optionally, a width of the second sub-guard interval is greater than or equal to twice a maximum Doppler of a target channel, and the target channel is a channel used to transmit the delayed Doppler domain information.

[0186] Optionally, a pilot is configured in the first protection interval.

[0187] Optionally, the transmission processing device 2100 further includes:

[0188] A transformation module, used for transforming the delay Doppler domain information obtained by delay Doppler domain block coding into time-frequency domain information;

[0189] A sending module is used to send the time-frequency domain information.

[0190] Optionally, the transmission processing device 2100 further includes:

[0191] The setting module is used to configure a second protection interval for the time-frequency domain information according to a preset time domain interval.

[0192] Optionally, the second protection interval is configured as 0, or is configured as a cyclic prefix, or is configured as a cyclic suffix.

[0193] Optionally, the target information is determined by the sending end or agreed upon by a protocol; the target information includes at least one of the following:

[0194] Position information of the L sub-blocks;

[0195] The rules corresponding to the delay-Doppler domain block coding;

[0196] Configuration information of the guard interval;

[0197] The location of the pilot;

[0198] Pilot information.

[0199] Optionally, in the case where the target information is determined by the sending end, the transmission processing device 2100 further includes: a sending module, configured to send indication information to the receiving end, wherein the indication information is used to indicate the target information.

[0200] Optionally, the indication information is carried in at least one of the following: wireless resource control signaling; layer 1 signaling of the physical downlink control channel; information of the physical downlink shared channel; signaling of the media access control layer control unit; system information block; layer 1 signaling of the physical uplink control channel; information 1 of the physical random access channel; information 3 of the physical random access channel; information A of the physical random access channel; information of the physical uplink shared channel; Xn interface signaling; PC5 interface signaling; sidelink interface signaling.

[0201] The transmission processing device provided in the embodiment of the present application can achieve Figures 4 to 20 To avoid repetition, each process in the method embodiment will not be described here.

[0202] The transmission processing device in the embodiment of the present application can be a device, a device or an electronic device with an operating system, or a component, an integrated circuit, or a chip in a terminal. The device can be a mobile terminal or a non-mobile terminal. Exemplarily, the mobile terminal can include but is not limited to the types of terminals 11 listed above, and the non-mobile terminal can be a server, a network attached storage (Network Attached Storage, NAS), a personal computer (personal computer, PC), a television (television, TV), a teller machine or a self-service machine, etc., which is not specifically limited in the embodiment of the present application.

[0203] Optional, such as Fig. 22 As shown, the embodiment of the present application further provides a communication device 2200, including a processor 2201, a memory 2202, and a program or instruction stored in the memory 2202 and executable on the processor 2201. For example, when the communication device 2200 is a terminal, the program or instruction is executed by the processor 2201 to implement each process of the above-mentioned transmission processing method embodiment, and can achieve the same technical effect. When the communication device 2200 is a network side device, the program or instruction is executed by the processor 2201 to implement each process of the above-mentioned transmission processing method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0204] The embodiment of the present application also provides a terminal, including a processor and a communication interface, the processor is used to split the delayed Doppler domain resource block corresponding to each of the L antennas of the terminal into L sub-blocks of the same size, L is an integer greater than 1; on the L antennas, delayed Doppler domain block encoding is performed with the sub-blocks as the granularity. This terminal embodiment corresponds to the above-mentioned terminal side method embodiment, and each implementation process and implementation method of the above-mentioned method embodiment can be applied to this terminal embodiment and can achieve the same technical effect. Specifically, Fig.23A schematic diagram of the hardware structure of a terminal for implementing various embodiments of the present application.

[0205] The terminal 2300 includes but is not limited to: a radio frequency unit 2301, a network module 2302, an audio output unit 2303, an input unit 2304, a sensor 2305, a display unit 2306, a user input unit 2307, an interface unit 2308, a memory 2309 and at least some of the components of the processor 2310.

[0206] Those skilled in the art will appreciate that the terminal 2300 may also include a power source (such as a battery) for supplying power to various components, and the power source may be logically connected to the processor 2310 through a power management system, thereby implementing functions such as managing charging, discharging, and power consumption management through the power management system. Fig.23 The terminal structure shown in the figure does not constitute a limitation on the terminal. The terminal may include more or fewer components than shown in the figure, or combine certain components, or arrange the components differently, which will not be described in detail here.

[0207] It should be understood that in the embodiment of the present application, the input unit 2304 may include a graphics processing unit (GPU) and a microphone, and the graphics processor processes the image data of a static picture or video obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. The display unit may include a display panel, and the display panel may be configured in the form of a liquid crystal display, an organic light emitting diode, etc. The user input unit includes a touch panel and other input devices. A touch panel is also called a touch screen. The touch panel may include two parts: a touch detection device and a touch controller. Other input devices may include, but are not limited to, a physical keyboard, function keys (such as a volume control button, a switch button, etc.), a trackball, a mouse, and a joystick, which will not be repeated here.

[0208] In the embodiment of the present application, the radio frequency unit 2301 receives downlink data from the network side device and sends it to the processor 2310 for processing; in addition, the uplink data is sent to the network side device. Generally, the radio frequency unit 2301 includes but is not limited to an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, etc.

[0209] The memory 2309 can be used to store software programs or instructions and various data. The memory 109 may mainly include a program or instruction storage area and a data storage area, wherein the program or instruction storage area may store an operating system, an application program or instruction required for at least one function (such as a sound playback function, an image playback function, etc.), etc. In addition, the memory 2309 may include a high-speed random access memory, and may also include a non-transient memory, wherein the non-transient memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. For example, at least one disk storage device, a flash memory device, or other non-transient solid-state storage device.

[0210] The processor 2310 may include one or more processing units; optionally, the processor 2310 may integrate an application processor and a modem processor, wherein the application processor mainly processes an operating system, a user interface, and application programs or instructions, and the modem processor mainly processes wireless communications, such as a baseband processor. It is understandable that the modem processor may not be integrated into the processor 2310.

[0211] Among them, the processor 2310 is used to split the delay Doppler domain resource block corresponding to each of the L antennas of the terminal into L sub-blocks of the same size, where L is an integer greater than 1; on the L antennas, delay Doppler domain block encoding is performed with the sub-block as the granularity.

[0212] In the embodiment of the present application, the delayed Doppler domain resource block corresponding to each of the L antennas of the terminal is split into L sub-blocks of the same size; on the L antennas, delayed Doppler domain block coding is performed with the sub-blocks as the granularity. In this way, MIMO applications can be implemented in the delayed Doppler domain, thereby improving the transmission performance.

[0213] Optionally, the delay-Doppler domain coordinates in each of the sub-blocks are continuous or cyclically continuous.

[0214] Optionally, the splitting direction of the delay-Doppler domain resource block includes at least one of the following: a delay direction and a Doppler direction.

[0215] Optionally, the processor 2310 is specifically configured to determine first delayed Doppler domain information carried on some sub-blocks among the L*L sub-blocks; and map the first delayed Doppler domain information based on a mapping relationship of delayed Doppler domain block coding to obtain second delayed Doppler domain information carried on the remaining sub-blocks among the L*L sub-blocks;

[0216] The L*L sub-blocks are all sub-blocks after the delay Doppler domain resource blocks corresponding to the L antennas are split.

[0217] Optionally, when L=2, the part of the sub-blocks includes the first sub-block and the second sub-block, and the remaining sub-blocks include the third sub-block and the fourth sub-block, wherein,

[0218] The first sub-block is one of a first sub-block corresponding to a first antenna and a second sub-block corresponding to a second antenna, and the third sub-block is the other of the first sub-block corresponding to the first antenna and the second sub-block corresponding to the second antenna;

[0219] The second subblock is one of the second subblock corresponding to the first antenna and the first subblock corresponding to the second antenna, and the fourth subblock is the other of the second subblock corresponding to the first antenna and the first subblock corresponding to the second antenna.

[0220] Optionally, the second delay-Doppler domain information S3 carried by the third sub-block satisfies: represents taking the conjugate of each element in S1, where S1 represents the first delay Doppler domain information carried by the first sub-block, or represents information obtained by reordering the first delay Doppler domain information carried by the first sub-block;

[0221] The second delay-Doppler domain information S4 carried by the fourth sub-block satisfies: It means taking the conjugate of each element in S2, where S2 represents the first delayed Doppler domain information carried on the second sub-block, or represents the information obtained by reordering the first delayed Doppler domain information carried on the second sub-block.

[0222] Optionally, when L=4, the part of the sub-blocks includes a first sub-block, a second sub-block, a third sub-block and a fourth sub-block, and the remaining sub-blocks include a fifth sub-block, a sixth sub-block, a seventh sub-block and an eighth sub-block, wherein,

[0223] The first sub-block is one of the second sub-block corresponding to the first antenna and the first sub-block corresponding to the third antenna, and the fifth sub-block is the other of the second sub-block corresponding to the first antenna and the first sub-block corresponding to the third antenna;

[0224] The second sub-block is one of a first sub-block corresponding to the first antenna and a second sub-block corresponding to the third antenna, and the sixth sub-block is the other of the first sub-block corresponding to the first antenna and the second sub-block corresponding to the third antenna;

[0225] The third sub-block is one of the fourth sub-block corresponding to the second antenna and the third sub-block corresponding to the fourth antenna, and the seventh sub-block is the other of the fourth sub-block corresponding to the second antenna and the third sub-block corresponding to the fourth antenna;

[0226] The fourth subblock is one of the third subblock corresponding to the second antenna and the fourth subblock corresponding to the fourth antenna, and the eighth subblock is the other of the third subblock corresponding to the second antenna and the fourth subblock corresponding to the fourth antenna.

[0227] Optionally, the second delay-Doppler domain information S5 carried by the fifth sub-block satisfies: represents taking the conjugate of each element in S1, where S1 represents the first delay Doppler domain information carried by the first sub-block, or represents information obtained by reordering the first delay Doppler domain information carried by the first sub-block;

[0228] The second delay-Doppler domain information S6 carried by the sixth sub-block satisfies: represents taking a conjugate of each element in S2, where S2 represents the first delay Doppler domain information carried by the second sub-block, or represents information obtained by reordering the first delay Doppler domain information carried by the second sub-block;

[0229] The second delay Doppler domain information S7 carried by the seventh sub-block satisfies: S7=-S3*, S3* represents taking a conjugate of each element in S3, and S3 represents the first delay Doppler domain information carried by the third sub-block, or represents information obtained by reordering the first delay Doppler domain information carried by the third sub-block;

[0230] The second delay-Doppler domain information S8 carried by the eighth sub-block satisfies: It indicates taking the conjugate of each element in S4, where S4 indicates the first delay Doppler domain information carried on the fourth sub-block, or indicates information obtained by reordering the first delay Doppler domain information carried on the fourth sub-block.

[0231] Optionally, the second delay Doppler domain information carried on the ninth sub-block is configured to be 0, and the ninth sub-block is any sub-block in the partial sub-blocks except the first sub-block, the second sub-block, the third sub-block and the fourth sub-block.

[0232] Optionally, a preset position of at least one of the sub-blocks is set to a first protection interval; the preset position includes at least one of the following: a preset delay position, a preset Doppler position.

[0233] Optionally, the first protection interval satisfies any of the following:

[0234] The first protection interval is configured as 0;

[0235] The first guard interval is configured as a cyclic prefix of a transmission signal of a sub-block where the first guard interval is located in a delay direction;

[0236] The first guard interval is configured as a cyclic suffix of a transmission signal of a sub-block where the first guard interval is located in a delay direction;

[0237] The first guard interval is configured as a cyclic prefix of a transmission signal of a sub-block where the first guard interval is located in a Doppler direction;

[0238] The first guard interval is configured as a cyclic suffix of a transmission signal of a sub-block where the first guard interval is located in a Doppler direction.

[0239] Optionally, the first protection interval includes at least one of the following:

[0240] a first sub-guard interval of at least one boundary of the sub-block in the delay direction;

[0241] The sub-block has a second sub-guard interval at least one boundary in the Doppler direction.

[0242] Optionally, a width of the first sub-guard interval is greater than or equal to a maximum delay of a target channel, and the target channel is a channel used to transmit the delay Doppler domain information.

[0243] Optionally, a width of the second sub-guard interval is greater than or equal to twice a maximum Doppler of a target channel, and the target channel is a channel used to transmit the delayed Doppler domain information.

[0244] Optionally, a pilot is configured in the first protection interval.

[0245] Optionally, the processor 2310 is further configured to transform the delay-Doppler domain information obtained by delay-Doppler domain block coding into time-frequency domain information;

[0246] The radio frequency unit 2301 is configured to send the time-frequency domain information.

[0247] Optionally, the processor 2310 is further configured to, at the transmitting end, configure a second guard interval for the time-frequency domain information according to a preset time domain interval.

[0248] Optionally, the second protection interval is configured as 0, or is configured as a cyclic prefix, or is configured as a cyclic suffix.

[0249] Optionally, the target information is determined by the terminal or agreed upon by a protocol; the target information includes at least one of the following:

[0250] Position information of the L sub-blocks;

[0251] The rules corresponding to the delay-Doppler domain block coding;

[0252] Configuration information of the guard interval;

[0253] The location of the pilot;

[0254] Pilot information.

[0255] Optionally, in a case where the target information is determined by the terminal, the radio frequency unit 2301 is further used to send indication information to a receiving end, where the indication information is used to indicate the target information.

[0256] Optionally, the indication information is carried in at least one of the following: wireless resource control signaling; layer 1 signaling of the physical downlink control channel; information of the physical downlink shared channel; signaling of the media access control layer control unit; system information block; layer 1 signaling of the physical uplink control channel; information 1 of the physical random access channel; information 3 of the physical random access channel; information A of the physical random access channel; information of the physical uplink shared channel; Xn interface signaling; PC5 interface signaling; sidelink interface signaling.

[0257] The embodiment of the present application also provides a network side device, including a processor and a communication interface, the processor is used to split the delayed Doppler domain resource block corresponding to each of the L antennas of the network side device into L sub-blocks of the same size, L is an integer greater than 1; on the L antennas, delayed Doppler domain block encoding is performed with the sub-blocks as the granularity. This network side device embodiment corresponds to the above-mentioned network side device method embodiment, and each implementation process and implementation method of the above-mentioned method embodiment can be applied to the network side device embodiment, and can achieve the same technical effect.

[0258] Specifically, the embodiment of the present application also provides a network side device. Fig.24 As shown, the network side device 2400 includes: an antenna 2401, a radio frequency device 2402, and a baseband device 2403. The antenna 2401 is connected to the radio frequency device 2402. In the uplink direction, the radio frequency device 2402 receives information through the antenna 2401 and sends the received information to the baseband device 2403 for processing. In the downlink direction, the baseband device 2403 processes the information to be sent and sends it to the radio frequency device 2402. The radio frequency device 2402 processes the received information and sends it out through the antenna 2401.

[0259] The above-mentioned frequency band processing device may be located in the baseband device 2403 . The method executed by the network-side device in the above embodiment may be implemented in the baseband device 2403 . The baseband device 2403 includes a processor 2404 and a memory 2405 .

[0260] The baseband device 2403 may include, for example, at least one baseband board on which a plurality of chips are arranged. Fig.24 As shown, one of the chips is, for example, a processor 2404, which is connected to a memory 2405 to call a program in the memory 2405 to execute the network-side device operations shown in the above method embodiment.

[0261] The baseband device 2403 may further include a network interface 2406 for exchanging information with the radio frequency device 2402 , and the interface may be, for example, a common public radio interface (CPRI for short).

[0262] Specifically, the network side device of the embodiment of the present application further includes: instructions or programs stored in the memory 2405 and executable on the processor 2404, and the processor 2404 calls the instructions or programs in the memory 2405 to execute Fig.21 The methods executed by the modules shown achieve the same technical effects, and therefore will not be described here in detail to avoid repetition.

[0263] An embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, each process of the above-mentioned transmission processing method embodiment is implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0264] The processor is a processor in the electronic device described in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a computer read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0265] An embodiment of the present application further provides a chip, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the various processes of the above-mentioned transmission processing method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0266] It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0267] An embodiment of the present application further provides a program product, which is stored in a non-volatile storage medium. The program product is executed by at least one processor to implement the various processes of the above-mentioned transmission processing method embodiment and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0268] It should be noted that, in this article, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise one..." do not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0269] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present application, or the part that contributes to the prior art, can be embodied in the form of a computer software product, which is stored in a storage medium (such as ROM / RAM, a magnetic disk, or an optical disk), and includes a number of instructions for enabling a terminal (which can be a mobile phone, a computer, a server, an air conditioner, or a base station, etc.) to execute the methods described in each embodiment of the present application.

[0270] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A transmission processing method, characterized in that: include: The transmitting end splits the delay-Doppler domain resource block corresponding to each of the L antennas into L sub-blocks of the same size, where L is an integer greater than 1; The transmitting end performs delay-Doppler domain block coding on the L antennas using the sub-block as a granularity.

2. The method according to claim 1, characterized in that The delay-Doppler domain coordinates in each of the sub-blocks are continuous or cyclically continuous.

3. The method according to claim 1, characterized in that The splitting direction of the delay-Doppler domain resource block includes at least one of the following: a delay direction and a Doppler direction.

4. The method according to claim 1, characterized in that The transmitting end performs delay-Doppler domain block coding on L antennas with the sub-block as the granularity, including: Determine first delay-Doppler domain information carried on some sub-blocks among the L*L sub-blocks; Mapping the first delay Doppler domain information based on the mapping relationship of the delay Doppler domain block coding to obtain the second delay Doppler domain information carried by the remaining sub-blocks in the L*L sub-blocks; The L*L sub-blocks are all sub-blocks after the delay Doppler domain resource blocks corresponding to the L antennas are split.

5. The method according to claim 4, characterized in that When L=2, the part of the sub-blocks includes the first sub-block and the second sub-block, and the remaining sub-blocks includes the third sub-block and the fourth sub-block, wherein, The first sub-block is one of a first sub-block corresponding to a first antenna and a second sub-block corresponding to a second antenna, and the third sub-block is the other of the first sub-block corresponding to the first antenna and the second sub-block corresponding to the second antenna; The second subblock is one of the second subblock corresponding to the first antenna and the first subblock corresponding to the second antenna, and the fourth subblock is the other of the second subblock corresponding to the first antenna and the first subblock corresponding to the second antenna.

6. The method according to claim 5, characterized in that The second delay-Doppler domain information S3 carried by the third sub-block satisfies: represents taking the conjugate of each element in S1, where S1 represents the first delay Doppler domain information carried by the first sub-block, or represents information obtained by reordering the first delay Doppler domain information carried by the first sub-block; The second delay-Doppler domain information S4 carried by the fourth sub-block satisfies: It means taking the conjugate of each element in S2, where S2 represents the first delayed Doppler domain information carried on the second sub-block, or represents the information obtained by reordering the first delayed Doppler domain information carried on the second sub-block.

7. The method according to claim 4, characterized in that When L=4, the part of the sub-blocks includes the first sub-block, the second sub-block, the third sub-block and the fourth sub-block, and the remaining sub-blocks include the fifth sub-block, the sixth sub-block, the seventh sub-block and the eighth sub-block, wherein, The first sub-block is one of the second sub-block corresponding to the first antenna and the first sub-block corresponding to the third antenna, and the fifth sub-block is the other of the second sub-block corresponding to the first antenna and the first sub-block corresponding to the third antenna; The second sub-block is one of a first sub-block corresponding to the first antenna and a second sub-block corresponding to the third antenna, and the sixth sub-block is the other of the first sub-block corresponding to the first antenna and the second sub-block corresponding to the third antenna; The third sub-block is one of the fourth sub-block corresponding to the second antenna and the third sub-block corresponding to the fourth antenna, and the seventh sub-block is the other of the fourth sub-block corresponding to the second antenna and the third sub-block corresponding to the fourth antenna; The fourth subblock is one of the third subblock corresponding to the second antenna and the fourth subblock corresponding to the fourth antenna, and the eighth subblock is the other of the third subblock corresponding to the second antenna and the fourth subblock corresponding to the fourth antenna.

8. The method according to claim 7, characterized in that The second delay-Doppler domain information S5 carried by the fifth sub-block satisfies: represents taking the conjugate of each element in S1, where S1 represents the first delay Doppler domain information carried by the first sub-block, or represents information obtained by reordering the first delay Doppler domain information carried by the first sub-block; The second delay-Doppler domain information S6 carried by the sixth sub-block satisfies: represents taking a conjugate of each element in S2, where S2 represents the first delay Doppler domain information carried by the second sub-block, or represents information obtained by reordering the first delay Doppler domain information carried by the second sub-block; The second delay-Doppler domain information S7 carried by the seventh sub-block satisfies: represents taking the conjugate of each element in S3, where S3 represents the first delay Doppler domain information carried on the third sub-block, or represents information obtained by reordering the first delay Doppler domain information carried on the third sub-block; The second delay-Doppler domain information S8 carried by the eighth sub-block satisfies: It indicates taking the conjugate of each element in S4, where S4 indicates the first delayed Doppler domain information carried on the fourth sub-block, or indicates information obtained by reordering the first delayed Doppler domain information carried on the fourth sub-block.

9. The method according to claim 7, characterized in that: The second delay Doppler domain information carried on the ninth sub-block is configured as 0, and the ninth sub-block is any sub-block in the partial sub-blocks except the first sub-block, the second sub-block, the third sub-block and the fourth sub-block.

10. The method according to claim 1, characterized in that The preset position of at least one of the sub-blocks is set as a first protection interval; the preset position includes at least one of the following: a preset delay position, a preset Doppler position.

11. The method according to claim 10, characterized in that The first protection interval satisfies any of the following: The first protection interval is configured as 0; The first guard interval is configured as a cyclic prefix of a transmission signal of a sub-block where the first guard interval is located in a delay direction; The first guard interval is configured as a cyclic suffix of a transmission signal of a sub-block where the first guard interval is located in a delay direction; The first guard interval is configured as a cyclic prefix of a transmission signal of a sub-block where the first guard interval is located in a Doppler direction; The first guard interval is configured as a cyclic suffix of a transmission signal of a sub-block where the first guard interval is located in a Doppler direction.

12. The method according to claim 10, characterized in that The first protection interval includes at least one of the following: a first sub-guard interval of at least one boundary of the sub-block in the delay direction; The sub-block has a second sub-guard interval at least one boundary in the Doppler direction.

13. The method according to claim 12, characterized in that The width of the first sub-guard interval is greater than or equal to a maximum delay of a target channel, where the target channel is a channel used to transmit delay Doppler domain information.

14. The method according to claim 12, characterized in that The width of the second sub-guard interval is greater than or equal to twice the maximum Doppler of a target channel, where the target channel is a channel used to transmit delay Doppler domain information.

15. The method according to claim 10, characterized in that A pilot is configured in the first protection interval.

16. The method according to claim 1, characterized in that After the transmitting end performs delay-Doppler domain block coding on the L antennas with the sub-block as the granularity, the method further includes: The transmitting end transforms the delay Doppler domain information obtained by delay Doppler domain block coding into time-frequency domain information; The transmitting end sends the time-frequency domain information.

17. The method according to claim 16, characterized in that Before the transmitting end sends the time-frequency domain information, the method further includes: The transmitting end configures a second guard interval for the time-frequency domain information according to a preset time domain interval.

18. The method according to claim 17, characterized in that The second guard interval is configured as 0, or is configured as a cyclic prefix, or is configured as a cyclic suffix.

19. The method according to claim 1, characterized in that The target information is determined by the sending end or agreed upon by the protocol; the target information includes at least one of the following: Location information of L sub-blocks; The rules corresponding to the delay-Doppler domain block coding; Configuration information of the guard interval; The location of the pilot; Pilot information.

20. The method according to claim 19, characterized in that In the case where the target information is determined by the sending end, the method further includes: The sending end sends indication information to the receiving end, where the indication information is used to indicate the target information.

21. The method according to claim 20, characterized in that The indication information is carried in at least one of the following items: wireless resource control signaling; layer 1 signaling of the physical downlink control channel; information of the physical downlink shared channel; signaling of the media access control layer control unit; system information block; layer 1 signaling of the physical uplink control channel; information 1 of the physical random access channel; information 3 of the physical random access channel; information A of the physical random access channel; information of the physical uplink shared channel; Xn interface signaling; PC5 interface signaling; side link interface signaling.

22. A transmission processing device, characterized in that: include: A splitting module, used for splitting a delay Doppler domain resource block corresponding to each of L antennas of the transmitting end into L sub-blocks of the same size, where L is an integer greater than 1; The coding module is used to perform delay-Doppler domain block coding on the L antennas with the sub-block as the granularity.

23. The device according to claim 22, characterized in that The delay-Doppler domain coordinates in each of the sub-blocks are continuous or cyclically continuous.

24. The device according to claim 22, characterized in that The splitting direction of the delay-Doppler domain resource block includes at least one of the following: a delay direction and a Doppler direction.

25. The device according to claim 22, characterized in that The encoding module comprises: A determining unit, configured to determine first delay-Doppler domain information carried on some sub-blocks among the L*L sub-blocks; A mapping unit, configured to map the first delay Doppler domain information based on a mapping relationship of delay Doppler domain block coding to obtain second delay Doppler domain information carried on the remaining sub-blocks of the L*L sub-blocks; The L*L sub-blocks are all sub-blocks after the delay Doppler domain resource blocks corresponding to the L antennas are split.

26. The device according to claim 25, characterized in that When L=2, the part of the sub-blocks includes the first sub-block and the second sub-block, and the remaining sub-blocks includes the third sub-block and the fourth sub-block, wherein, The first sub-block is one of a first sub-block corresponding to a first antenna and a second sub-block corresponding to a second antenna, and the third sub-block is the other of the first sub-block corresponding to the first antenna and the second sub-block corresponding to the second antenna; The second subblock is one of the second subblock corresponding to the first antenna and the first subblock corresponding to the second antenna, and the fourth subblock is the other of the second subblock corresponding to the first antenna and the first subblock corresponding to the second antenna.

27. The device according to claim 26, characterized in that The second delay-Doppler domain information S3 carried by the third sub-block satisfies: represents taking the conjugate of each element in S1, where S1 represents the first delay Doppler domain information carried by the first sub-block, or represents information obtained by reordering the first delay Doppler domain information carried by the first sub-block; The second delay-Doppler domain information S4 carried by the fourth sub-block satisfies: It means taking the conjugate of each element in S2, where S2 represents the first delayed Doppler domain information carried on the second sub-block, or represents the information obtained by reordering the first delayed Doppler domain information carried on the second sub-block.

28. The device according to claim 25, characterized in that When L=4, the part of the sub-blocks includes the first sub-block, the second sub-block, the third sub-block and the fourth sub-block, and the remaining sub-blocks include the fifth sub-block, the sixth sub-block, the seventh sub-block and the eighth sub-block, wherein, The first sub-block is one of the second sub-block corresponding to the first antenna and the first sub-block corresponding to the third antenna, and the fifth sub-block is the other of the second sub-block corresponding to the first antenna and the first sub-block corresponding to the third antenna; The second sub-block is one of a first sub-block corresponding to the first antenna and a second sub-block corresponding to the third antenna, and the sixth sub-block is the other of the first sub-block corresponding to the first antenna and the second sub-block corresponding to the third antenna; The third sub-block is one of the fourth sub-block corresponding to the second antenna and the third sub-block corresponding to the fourth antenna, and the seventh sub-block is the other of the fourth sub-block corresponding to the second antenna and the third sub-block corresponding to the fourth antenna; The fourth subblock is one of the third subblock corresponding to the second antenna and the fourth subblock corresponding to the fourth antenna, and the eighth subblock is the other of the third subblock corresponding to the second antenna and the fourth subblock corresponding to the fourth antenna.

29. The device according to claim 28, characterized in that The second delay-Doppler domain information S5 carried by the fifth sub-block satisfies: represents taking the conjugate of each element in S1, where S1 represents the first delay Doppler domain information carried by the first sub-block, or represents information obtained by reordering the first delay Doppler domain information carried by the first sub-block; The second delay-Doppler domain information S6 carried by the sixth sub-block satisfies: represents taking a conjugate of each element in S2, where S2 represents the first delay Doppler domain information carried by the second sub-block, or represents information obtained by reordering the first delay Doppler domain information carried by the second sub-block; The second delay-Doppler domain information S7 carried by the seventh sub-block satisfies: represents taking the conjugate of each element in S3, where S3 represents the first delay Doppler domain information carried on the third sub-block, or represents information obtained by reordering the first delay Doppler domain information carried on the third sub-block; The second delay-Doppler domain information S8 carried by the eighth sub-block satisfies: It indicates taking the conjugate of each element in S4, where S4 indicates the first delayed Doppler domain information carried on the fourth sub-block, or indicates information obtained by reordering the first delayed Doppler domain information carried on the fourth sub-block.

30. A communication device, characterized in that: include: A memory, a processor, and a program stored in the memory and executable on the processor, wherein when the program is executed by the processor, the steps in the transmission processing method according to any one of claims 1 to 21 are implemented.

31. A readable storage medium, characterized in that: The readable storage medium stores a program or instruction, and when the program or instruction is executed by a processor, the steps of the transmission processing method according to any one of claims 1 to 21 are implemented.

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