Preamble transmission method, terminal and network side equipment

Abstract

The invention discloses a preamble transmission method, a terminal and network side equipment, and belongs to the technical field of wireless communication, and the preamble transmission method comprises the steps that the terminal determines configuration information of a target preamble, and the target preamble is associated with target data transmission; and the terminal sends the target lead code to a network side device or receives the target lead code sent by the network side device based on configuration information.

Description

Technical Field

[0001] This application belongs to the field of wireless communication technology, and particularly relates to a method for transmitting a preamble, a terminal, and a network-side device. Background Art

[0002] With the development of fields such as the Internet of Things, smart homes, and wearable devices, the application of low-power high-rate terminal devices is becoming more and more extensive. Low-power high-rate terminal devices need to have a long battery life and at the same time maintain the ability to transmit high-rate data to meet users' needs for real-time data and information. By relaxing the hardware requirements of the terminal (for example, relaxing the requirements for the Phase Locking Loop (PLL)), the power consumption of the terminal can be saved, but at the same time, it will also bring larger errors (for example, the time offset and frequency offset will increase), thereby reducing the reliability of data transmission.

[0003] Therefore, in a cellular system, how to ensure the reliability of data transmission of low-power high-rate terminal devices is a technical problem to be solved in the related art. Summary of the Invention

[0004] Embodiments of this application provide a method for transmitting a preamble, a terminal, and a network-side device, which can solve the problem of how to ensure the reliability of data transmission of low-power high-rate terminal devices.

[0005] In a first aspect, a method for transmitting a preamble is provided, which is executed by a terminal. The method includes: the terminal determines the configuration information of a target preamble, where the target preamble is associated with a target data transmission; the terminal sends the target preamble to a network-side device or receives the target preamble sent by the network-side device based on the configuration information.

[0006] In a second aspect, a method for transmitting a preamble is provided, which is executed by a network-side device. The method includes: the network-side device determines the configuration information of a target preamble, where the target preamble is associated with a target data transmission; the network-side device receives the target preamble sent by the terminal or sends the target preamble to the terminal based on the configuration information.

[0007] In a third aspect, a device for transmitting a preamble is provided. The device includes: a first determination module, configured to determine the configuration information of a target preamble, where the target preamble is associated with a target data transmission; a first transmission module, configured to send the target preamble to a network-side device or receive the target preamble sent by the network-side device based on the configuration information.

[0008] Fourthly, a preamble transmission device is provided. The device includes: a second determination module configured to determine configuration information of a target preamble, where the target preamble is associated with target data transmission; and a second transmission module configured to receive the target preamble sent by a terminal or send the target preamble to the terminal based on the configuration information.

[0009] Fifthly, a terminal is provided. The terminal includes a processor and a memory. The memory stores a program or instructions that can run on the processor. When the program or instructions are executed by the processor, the steps of the method described in the first aspect are implemented.

[0010] Sixthly, a terminal is provided, including a processor and a communication interface. The processor is configured to implement the steps of the method described in the first aspect, and the communication interface is configured to be coupled with the processor.

[0011] Seventhly, a network-side device is provided. The network-side device includes a processor and a memory. The memory stores a program or instructions that can run on the processor. When the program or instructions are executed by the processor, the steps of the method described in the second aspect are implemented.

[0012] Eighthly, a network-side device is provided, including a processor and a communication interface. The processor is configured to implement the steps of the method described in the second aspect, and the communication interface is configured to be coupled with the processor.

[0013] Ninthly, a readable storage medium is provided. A program or instructions are stored on the readable storage medium. When the program or instructions are executed by a processor, the steps of the method described in the first aspect are implemented, or the steps of the method described in the second aspect are implemented.

[0014] Tenthly, a wireless communication system is provided, including: a terminal and a network-side device. The terminal can be used to execute the steps of the method described in the first aspect, and the network-side device can be used to execute the steps of the method described in the second aspect.

[0015] Eleventhly, a chip is provided. The chip includes a processor and a communication interface. The communication interface is coupled with the processor. The processor is configured to run a program or instructions to implement the steps of the method described in the first aspect, or to implement the steps of the method described in the second aspect.

[0016] Twelfthly, a computer program / program product is provided. The computer program / program product is stored in a storage medium. The computer program / program product is executed by at least one processor to implement the steps of the method described in the first aspect, or to implement the steps of the method described in the second aspect.

[0017] In the preamble transmission method provided by the embodiments of the present application, a terminal may determine the configuration information of a target preamble associated with target data transmission, and then based on the configuration information, send the target preamble to a network-side device or receive the target preamble sent by the network-side device. Thereby, the terminal and the network-side device can send or receive a preamble associated with data transmission, and further, time-domain synchronization, time offset estimation, frequency offset estimation, and channel estimation can be completed through the preamble, thereby ensuring the reliability of data transmission in a cellular system. Description of the Drawings

[0018] Figure 1 A block diagram of a wireless communication system to which the embodiments of the present application can be applied is shown;

[0019] Figure 2 A schematic structural diagram of a physical layer frame of MB-OFDM-UWB according to the embodiments of the present application is shown;

[0020] Figure 3 A schematic flowchart of a preamble transmission method provided by the embodiments of the present application is shown;

[0021] Figure 4a A schematic diagram of time-frequency domain resource allocation of a preamble according to the embodiments of the present application is shown;

[0022] Figure 4b A schematic diagram of time-frequency domain resource allocation of another preamble according to the embodiments of the present application is shown;

[0023] Figure 5 A schematic diagram of a frequency domain mapping pattern of a preamble according to the embodiments of the present application is shown;

[0024] Figure 6 A schematic flowchart of another preamble transmission method provided by the embodiments of the present application is shown;

[0025] Figure 7 A schematic structural diagram of a preamble transmission device provided by the embodiments of the present application is shown;

[0026] Figure 8 A schematic structural diagram of another preamble transmission device provided by the embodiments of the present application is shown;

[0027] Figure 9 A schematic structural diagram of a communication device provided by the embodiments of the present application is shown;

[0028] Figure 10 A schematic hardware structure diagram of a terminal provided by the embodiments of the present application is shown;

[0029] Figure 11 A schematic hardware structure diagram of a network-side device provided by the embodiments of the present application is shown. Detailed implementation mode

[0030] The following will clearly describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present application.

[0031] The terms "first", "second", etc. in the present application are used to distinguish similar objects, rather than to describe a specific order or sequence. It should be understood that such terms can be interchanged under appropriate circumstances so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first" and "second" are usually of the same kind, and the number of objects is not limited. For example, the first object can be one or more. In addition, "or" in the present application means at least one of the connected objects. For example, "A or B" covers three scenarios, namely, Scenario 1: including A and not including B; Scenario 2: including B and not including A; Scenario 3: including both A and B. The character " / " generally indicates an "or" relationship between the associated objects before and after.

[0032] The term "indicate" in the present application can be either a direct indication (or an explicit indication) or an indirect indication (or an implicit indication). Among them, a direct indication can be understood as that the sender clearly tells the receiver specific information, operations to be performed, or request results, etc. in the sent indication; an indirect indication can be understood as that the receiver determines the corresponding information according to the indication sent by the sender, or makes a judgment and determines the operations to be performed or request results, etc. according to the judgment result.

[0033] It should be noted that the technology described in the embodiments of this application is not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, and 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), or other systems. The terms "system" and "network" in the embodiments of this application are often used interchangeably, and the described technology can be used in the above-mentioned systems and radio technologies, as well as in other systems and radio technologies. The following description describes the New Radio (NR) system for example purposes, and the NR term is used in most of the following descriptions, but these technologies can also be applied to systems other than the NR system, such as the 6th Generation (6 th Generation, 6G) communication system.

[0034] Figure 1The block diagram of a wireless communication system to which the embodiments of the present application can be applied is shown. The wireless communication system includes a terminal 11 and a network-side device 12. Among them, the terminal 11 can be a mobile phone, a tablet personal computer, a laptop computer, a notebook computer, a personal digital assistant (PDA), a handheld computer, a netbook, an ultra-mobile personal computer (UMPC), a mobile internet device (MID), an augmented reality (AR), a virtual reality (VR) device, a robot, a wearable device, a flight vehicle, a vehicle user equipment (VUE), a shipborne device, a pedestrian user equipment (PUE), a smart home (home appliances with wireless communication functions, such as refrigerators, TVs, washing machines, or furniture, etc.), a game console, a personal computer (PC), a teller machine, or a self-service machine, etc. Wearable devices include: smart watches, smart bracelets, smart earphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets, smart ankle chains, etc.), smart wristbands, smart clothing, etc. Among them, the vehicle user equipment can also be referred to as a vehicle terminal, a vehicle controller, a vehicle module, a vehicle component, a vehicle chip, or a vehicle unit, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiments of the present application. The network-side device 12 can include an access network device or a core network device. Among them, the access network device can also be referred to as a radio access network (RAN) device, a radio access network function, or a radio access network unit. The access network device can include a base station, a wireless local area network (WLAN) access point (AP), or a wireless fidelity (WiFi) node, etc.Among them, the base station can be referred to as Node B (NB), Evolved Node B (eNB), the next generation Node B (gNB), New Radio Node B (NR Node B), access point, Relay Base Station (RBS), Serving Base Station (SBS), Base Transceiver Station (BTS), radio base station, radio transceiver, Basic Service Set (BSS), Extended Service Set (ESS), home Node B (HNB), home evolved Node B, Transmission Reception Point (TRP), or some other suitable term in the art. As long as the same technical effect is achieved, the base station is not limited to specific technical terms. It should be noted that in the embodiments of this application, only the base station in the NR system is taken as an example for introduction, and the specific type of the base station is not limited.

[0035] The core network device may include, but is not limited to, at least one of the following: core network node, core network function, Mobility Management Entity (MME), Access and Mobility Management Function (AMF), Session Management Function (SMF), User Plane Function (UPF), Policy Control Function (PCF), Policy and Charging Rules Function (PCRF), Edge Application Server Discovery Function (EASDF), Unified Data Management (UDM), Unified Data Repository (UDR), Home Subscriber Server (HSS), Centralized network configuration (CNC), Network Repository Function (NRF), Network Exposure Function (NEF), Local NEF (L-NEF), Binding Support Function (BSF), Application Function (AF), Location Management Function (LMF), Gateway Mobile Location Centre (GMLC), Network Data Analytics Function (NWDAF), etc. It should be noted that in the embodiments of this application, only the core network devices in the NR system are taken as examples for introduction, and the specific types of core network devices are not limited.

[0036] The Institute of Electrical and Electronics Engineers (IEEE) has released the IEEE 802.15.3a standard. IEEE 802.15.3a is a wireless personal area network (WPAN) standard based on Ultra-Wideband (UWB) technology. Among them, Multiband Orthogonal Frequency Division Multiplexing Ultra-Wideband (MB-OFDM-UWB) is one of the candidate technologies for short-distance, low-power, and high-rate applications.

[0037] The physical layer frame structure of MB-OFDM-UWB is as Figure 2 shown. Briefly speaking, a frame mainly includes a preamble, a header, and a Physical Service Data Unit (PSDU). Among them, the preamble is at the front in terms of time and is used for time synchronization, frequency offset recovery, channel estimation, etc. The header is located after the preamble, and its function is similar to a control channel and is used to carry control information. The PSDU is a data channel and carries the data to be sent. After the terminal completes time synchronization based on the preamble, it can demodulate the data information carried by the PSDU based on the control information in the header. Among them, the Header Check Sequence (HCS) is used to check the Medium Access Control (MAC) header.

[0038] There are two types of preambles in MB-OFDM-UWB, namely the standard preamble and the burst preamble. Among them, the preamble sequence consists of two parts, namely the packet / frame synchronization sequence and the channel estimation sequence. Among them, the packet / frame synchronization sequence is a predefined time-domain sequence, and the channel estimation sequence is a predefined frequency-domain sequence.

[0039] The standard preamble consists of 30 Orthogonal Frequency Division Multiplexing (OFDM) symbols in total. Among them, the frame synchronization sequence occupies the first 24 symbols, and the channel estimation sequence occupies the last 6 symbols.

[0040] The burst preamble can be the burst Physical Layer Convergence Procedure (PLCP) preamble, which consists of 18 OFDM symbols in total. Among them, the frame synchronization sequence occupies the first 12 symbols, and the channel estimation sequence occupies the last 6 symbols.

[0041] There are two transmission modes in MB-OFDM-UWB, namely single frame transmission and burst mode transmission. For the Burst PLCP preamble, it can only be used in the burst mode. In addition, when the data transmission rate is above 200 Mb / s, the first frame can use the Standard PLCP preamble, and the subsequent frames can use the Standard PLCP preamble or the Burst PLCP preamble. When the data rate is 200 Mbps or below, all frames use the Stand PLCP preamble.

[0042] The working frequency band of the MB-OFDM-UWB technology is 3100–10600 MHz, which is divided into 6 groups with a total of 14 sub-bands. The bandwidth of each sub-band is 528 MHz, and its subcarrier spacing (SCS) is 4.125 MHz. The large bandwidth and large SCS make the time-domain sampling interval of MB-OFDM-UWB smaller, and the frequency-domain correlation between different subcarriers lower. The Preamble is designed at the start position of each frame.

[0043] The preamble of the above MB-OFDM-UWB is designed for wireless personal area networks. However, in a cellular system, the frame structure has a strict design, and there are more channel / signal types (for example, the uplink may include Physical Uplink Control Channel (PUCCH), Physical Uplink Shared Channel (PUSCH), Tracking Reference Signal (TRS), while the downlink may include: Physical Downlink Control Channel (PDCCH), Physical Downlink Shared Channel (PDSCH), Channel State Information Reference Signal (CSI-RS), etc.). Different channel / signal types have different characteristics (for example, the coding methods of PDCCH and PDSCH are different, and their Modulation and Coding Scheme (MCS) may also be different). In addition, there are more options for the subcarrier spacing (SCS), and different SCS sizes have different characteristics. Therefore, the preamble design scheme in the related art cannot be applied to a cellular network, and how to ensure the reliability of data transmission for low-power and high-rate terminal devices in a cellular network needs to be solved urgently.

[0044] The following will combine the accompanying drawings and elaborate on the preamble transmission scheme provided by the embodiments of the present application through some embodiments and their application scenarios.

[0045] Figure 3 FIG. shows a schematic flowchart of a method for transmitting a preamble in an embodiment of the present application. This method 300 can be executed by a terminal. In other words, the method can be executed by software or hardware installed on the terminal. As Figure 3 shown, this method may include the following steps.

[0046] S301: The terminal determines the configuration information of the target preamble.

[0047] Wherein, the target preamble is associated with the target data transmission.

[0048] In the embodiment of the present application, before performing the target data transmission, the terminal may first determine the configuration information of the target preamble associated with the target data transmission.

[0049] In an alternative implementation, the terminal determines the configuration information of the target preamble, including at least one of the following:

[0050] (1) The terminal determines the configuration information of the target preamble based on a predefined rule. For example, the terminal can implicitly determine the configuration information of the target preamble according to the predefined rule.

[0051] (2) The terminal determines the configuration information of the target preamble based on an indication from a network device. For example, the terminal can determine the configuration information of the target preamble according to at least one of static, semi-static, and dynamic configurations of the network device.

[0052] In an alternative implementation, the terminal determines the configuration information of the target preamble based on an indication from a network device, including one of the following:

[0053] (1) The terminal determines the configuration information of the target preamble based on the preamble parameters configured by the network device through a first network signaling. In this alternative implementation, the terminal can determine the configuration information of the target preamble according to the preamble parameters statically configured by the network device through a first network signaling. For example, the terminal determines the configuration information of the target preamble according to the preamble parameters configured by the network device through Radio Resource Control (RRC) signaling.

[0054] (2) The terminal determines the configuration information of the target preamble based on the target preamble parameters activated by the network device through a second network signaling, where the target preamble parameters are one candidate value in a preamble parameter set configured or predefined by the network device and including multiple candidate values. In this alternative implementation, the terminal can determine the configuration information of the target preamble based on the target preamble parameters activated by the network device through a second network signaling, such as a Medium Access Control (MAC) command or Downlink Control Information (DCI). Among them, the target preamble parameters can be configured by the network device, such as configured by RRC signaling, or one candidate value in a preamble parameter set predefined and including multiple candidate values. In this alternative implementation, the network device can configure or predefine a value set of preamble-related parameters through RRC signaling, and activate one of the values through MAC signaling or DCI.

[0055] (3) The terminal determines the configuration information of the target preamble based on the first indication information carried in the third network signaling sent by the network side device, where the first indication information is used to indicate the configuration of the target preamble. In this optional implementation, the network side device can directly indicate the preamble configuration information through a MAC command or DCI, that is, the network side device dynamically configures the preamble configuration information of the terminal, and the terminal determines the configuration information of the target preamble based on the indication of the network side device. For example, the network side device can carry the first indication information in the Physical Downlink Control Channel (PDCCH) or the Physical Downlink Shared Channel (PDSCH), and the terminal detects the first indication information and then determines the configuration information of the target preamble.

[0056] In an optional implementation manner, the target preamble includes one of the following:

[0057] (1) The first sequence, which is used for at least one of the following: time domain synchronization, time offset estimation, frequency offset estimation, and channel estimation. The target preamble may include one first sequence, and the first sequence can be used for at least one of time domain synchronization, time offset estimation, frequency offset estimation, and channel estimation.

[0058] (2) The second sequence and the third sequence, where the second sequence is used for at least one of the following: time domain synchronization, time offset estimation, and the third sequence is used for at least one of the following: frequency offset estimation, channel estimation. In this optional implementation, the target preamble may include two sequences: the second sequence and the third sequence. The second sequence can be used for at least one of time domain synchronization and time offset estimation, and the third sequence can be used for at least one of frequency offset estimation and channel estimation.

[0059] In the above implementation, the target preamble can be composed of one sequence or multiple sequences. For example, the target preamble can include two sequences: sequence-1 is a sequence for time domain synchronization or time offset estimation, and sequence-2 is a sequence for frequency offset estimation or channel estimation.

[0060] In an optional implementation manner, at least one of the first sequence, the second sequence, and the third sequence is generated based on at least one of the following:

[0061] (1) The ZC sequence. The Zadoff-Chu (ZC) sequence has good autocorrelation (cyclic shift property), good cross-correlation, and constant amplitude property.

[0062] (2) Pseudo-random sequence. The pseudo-random sequence can be an m-sequence or a Gold sequence.

[0063] (3) Predefined dedicated sequence. For example, a sequence determined based on a predefined sequence generation method or a directly predefined sequence.

[0064] In the above implementation, at least one of the first sequence, the second sequence, and the third sequence of the target preamble can be generated based on at least one of the above three sequences.

[0065] In an alternative implementation, the configuration information of the target preamble may include at least one of the following:

[0066] (1) Second indication information for indicating whether to transmit the target preamble. In this alternative embodiment, the configuration information of the target preamble may include the second indication information for indicating whether to transmit the target preamble. In a specific application, in some scenarios, there may be no need to transmit a preamble between the terminal and the network-side device. For example, for some transmitted signals, the terminal can perform time-frequency offset estimation based on the signal itself, so there is no need for an associated preamble. Through the second indication information, it can be indicated whether the terminal needs to transmit a preamble when transmitting the target data.

[0067] (2) The sequence for generating the target preamble. In this alternative embodiment, the configuration information of the target preamble may include the sequence for generating the target preamble, such as the above-mentioned ZC sequence, pseudo-random sequence, etc.

[0068] (3) The time-domain resource configuration information of the target preamble. In this alternative implementation, the configuration information of the target preamble may include the time-domain resource configuration information of the target preamble. Through the time-domain resource configuration information of the target preamble, the terminal can determine the time-domain position for transmitting the target preamble.

[0069] Optionally, the time-domain resource configuration information includes at least one of the following:

[0070] 1) The time-domain start position of the target preamble;

[0071] 2) The time-domain length of the target preamble, that is, the duration of the target preamble in the time domain.

[0072] In the above optional implementation, the time-domain resource configuration information of the target preamble may include the time-domain start position of the target preamble, for example, the time-domain start positions of different parts of the target preamble. The time-domain resource configuration information of the target preamble may include the time-domain length (duration) of the target preamble, for example, the time-domain lengths of different parts of the target preamble. The time-domain resource configuration information of the target preamble may also include the time-domain start position of the target preamble and the time-domain length of the target preamble.

[0073] (4) The frequency-domain resource configuration information of the target preamble. In this optional implementation, the configuration information of the target preamble may include the frequency-domain resource configuration information of the target preamble. Through the frequency-domain resource configuration information of the target preamble, the terminal can determine the frequency-domain position for transmitting the target preamble.

[0074] Optionally, the frequency-domain resource configuration information includes at least one of the following:

[0075] 1) The frequency-domain resources allocated to the target preamble, for example, the frequency-domain resources allocated to different parts of the target preamble;

[0076] 2) The mapping pattern of the target preamble on the allocated frequency-domain resources. For example, the mapping diagram of different parts of the target preamble on the frequency-domain resources.

[0077] In this implementation, the configuration information of the target preamble may also include the frequency-domain resource configuration information of the target preamble. The frequency-domain resource configuration information of the target preamble may include at least one of the frequency-domain resources allocated to the target preamble and the mapping pattern of the target preamble on the allocated frequency-domain resources. In specific applications, the configuration information of the target preamble may be determined according to actual situations without limitation.

[0078] In the above optional implementation, the time-domain resource configuration information and the frequency-domain resource configuration information of the preamble may be determined based on predefined rules (based on the default method). For example, for a preamble associated with PDCCH or PDSCH, the default time-domain resource configuration of the preamble is 1 symbol before the first symbol of PDCCH or PDSCH, and the default frequency-domain resource configuration of the preamble is the same as the frequency-domain resource of PDCCH or PDSCH. For example, in Figure 4a The preamble time-domain position of PDCCH / PDSCH is located at one symbol before PDCCH / PDSCH, and its frequency-domain resource allocation is the same as the frequency-domain resource allocation of PDCCH / PDSCH.

[0079] Optionally, the time-domain resource configuration information and frequency-domain resource configuration information of the preamble can also be explicitly configured and determined directly by the network-side device. For example, when the network-side device semi-statically configures two preamble configurations, it can indicate which one in the DCI for scheduling the PDSCH. Or for the PDCCH, when configuring the search space or control resource set (CORESET), it indicates which preamble corresponds to the PDCCH. For example, in Figure 4b the network-side device can configure, through signaling, that the preamble corresponding to the PDCCH is located in 1 symbol before the first symbol of the PDCCH in the time domain, and the preamble corresponding to the PDSCH is located in 2 symbols before the first symbol of the PDSCH in the time domain.

[0080] In the preamble transmission method provided in the embodiments of the present application, the terminal can implicitly determine the configuration information of the target preamble according to predefined rules or determine the configuration information of the target preamble according to the indication of the network-side device. In an alternative implementation, the terminal determines the configuration information of the target preamble, including:

[0081] The terminal determines part or all of the configuration information of the target preamble according to the target information and predefined rules, where the target information includes at least one of the following:

[0082] (1) The subcarrier spacing (SCS) used to transmit the target data. For example, the network-side device can configure or the protocol can stipulate multiple preamble configurations, and different SCSs correspond to different preamble configurations. The values of the preamble parameters corresponding to different preamble configurations are not exactly the same.

[0083] (2) The waveform used to transmit the target data. For example, the network-side device can configure or the protocol can stipulate multiple preamble configurations. Based on the OFDM waveform, it can correspond to the first preamble configuration, and based on the on-off keying (OOK) modulation format waveform, it can correspond to the second preamble configuration. The values of the preamble parameters corresponding to different preamble configurations are different.

[0084] (3) The channel type for transmitting the target data. For example, the network-side device can configure or the protocol can stipulate multiple preamble configurations, and different channel types correspond to not exactly the same preamble configurations.

[0085] (4) The signal type for transmitting the target data. For example, the network-side device can configure or the protocol can stipulate multiple preamble configurations, and different signal types correspond to not exactly the same preamble configurations.

[0086] (5) The time interval of the target data transmission relative to the target signal or target channel. For example, the network-side device may configure or the protocol may stipulate two preamble configurations. When the time interval between the target data transmission and the target signal or target channel is less than a predetermined threshold, the first preamble configuration is adopted; otherwise, the second preamble configuration is used. For example, the target signal may be a synchronization signal, such as a Tracking Reference Signal (TRS) or an SSB, while the target data transmission may be other downlink signal transmissions, such as a PDSCH or a PDCCH.

[0087] Optionally, the first preamble configuration is that there is no preamble for the target data transmission, and the second preamble configuration is that there is a preamble before the target data transmission. Or, the first preamble configuration is to use a preamble of a first pattern or sequence, and the second preamble configuration is to use a preamble of a second pattern or sequence.

[0088] (6) The type of Cyclic Prefix (CP) used. For example, the network-side device may configure or the protocol may stipulate multiple preamble configurations. For the Extended Cyclic Prefix (ECP) in the cyclic prefix, the first preamble configuration is adopted, and for others, the second preamble configuration is adopted.

[0089] (7) The type of Bandwidth Part (BWP) for transmitting the target data. For example, the network-side device may configure or the protocol may stipulate multiple preamble configurations. Different BWP types correspond to not completely identical preamble configurations. For example, the initial BWP corresponds to the first preamble configuration, a specific active BWP corresponds to the second preamble configuration, or a specific frequency band corresponds to a BWP that supports multiple preamble configurations. The terminal can determine which preamble configuration it is according to other information, such as the subcarrier spacing SCS / waveform / BWP type, etc.

[0090] (8) The type of carrier used for transmitting the target data. For example, the network-side device may configure or the protocol may stipulate multiple preamble configurations. Different carrier types correspond to not completely identical preamble configurations. For example, a carrier with a carrier bandwidth less than a predefined or configured threshold corresponds to the first preamble configuration, otherwise it corresponds to the second preamble configuration.

[0091] (9) The carrier frequency band where the target data is transmitted. For example, the network-side device may configure or the protocol may stipulate multiple preamble configurations. Different carrier frequency bands correspond to different preamble configurations.

[0092] (10) The cell type where the terminal is located. For example, the network-side device may configure or protocol-agree on multiple preamble configurations, and different cell types correspond to different preamble configurations. For example, the type of the current cell may include: non-terrestrial network (NTN), or non-NTN, Macro cell, and Micro cell, etc. For example, the NTN cell corresponds to the first preamble configuration, and the non-NTN cell corresponds to the second preamble configuration.

[0093] (11) The type of the terminal. For example, the network-side device may configure or protocol-agree on multiple preamble configurations, and different terminal types correspond to different preamble configurations.

[0094] (12) The receiver type of the terminal. For example, the network-side device may configure or protocol-agree on multiple preamble configurations, and different receiver types correspond to different preamble configurations.

[0095] (13) The transmission mode of the terminal. For example, the network-side device may configure or protocol-agree on multiple preamble configurations, and different transmission models correspond to different preamble configurations.

[0096] (14) The modulation and coding scheme used to transmit the target data. For example, the network-side device may configure or protocol-agree on multiple preamble configurations, and different modulation and coding schemes correspond to not completely identical preamble configurations.

[0097] (15) The service type corresponding to the target data. For example, the network-side device may configure or protocol-agree on multiple preamble configurations, and different service types correspond to different preamble configurations. For example, the network-side device may configure or protocol-agree on two preamble configurations. For a specific service type, it corresponds to the first preamble configuration, and other service types correspond to the second preamble configuration. The UE can determine the corresponding preamble configuration according to the service type.

[0098] In an embodiment of the present application, the terminal may determine all configuration information of the target preamble according to at least one piece of target information in the above (1) to (15). For example, there are multiple preamble configurations agreed upon by the protocol. The terminal determines the configuration information of the target preamble as one of them according to at least one piece of target information in the above (1) to (15) and according to a predefined rule. Alternatively, the terminal may also determine partial configuration information of the target preamble through one piece of target information in the above (1) to (15), and determine the remaining partial configuration information of the target preamble through at least one other piece of target information in the above (1) to (15). Alternatively, the terminal may also determine partial configuration information of the target preamble according to at least one piece of target information in the above (1) to (15) according to a predefined rule, and the other partial configuration information may be determined by other methods. The specific method adopted is not limited in the embodiment of the present application. For example, the terminal may determine the frequency-domain resource configuration information of the target preamble according to the SCS used to transmit the target data, and determine the sequence or time-domain resource configuration information for generating the target preamble according to the indication of the network-side device.

[0099] In the above optional implementation manner, as described in (1) above, when the partial or all configuration information of the target preamble is determined according to the SCS used by the terminal to transmit the target data and the predefined rule, for the SCS used to transmit the target data, when it is greater than or equal to a certain agreed threshold (for example, 960 kHz), for the part of the preamble used for channel estimation, the frequency-domain mapping pattern in a resource block (RB) is Figure 5 pattern-1 in, that is, mapping is performed every other subcarrier, and 6 subcarriers on one RB are used to place the preamble. Otherwise, its corresponding frequency-domain mapping pattern is Figure 5 pattern-2 in, that is, mapping is performed on all subcarriers, and all subcarriers on one RB are used to place the preamble. For example, when the configured subcarrier spacing SCS = 1.92 MHz, the corresponding frequency-domain mapping pattern of the preamble is Figure 5 pattern-2 in, and when the configured subcarrier spacing SCS = 960 kHz, the corresponding frequency-domain mapping pattern of the preamble is Figure 5 pattern-1 in.

[0100] In the above optional implementation manner, as described in (3) above, when the terminal determines part or all of the configuration information of the target preamble according to the channel type for transmitting the target data and the predefined rules, for a specific channel, for example, the Physical Random Access Channel (PRACH), or for a channel of a specific format, for example, the Physical Uplink Control Channel (PUCCH) format-0, there is no need to configure a preamble. For another example, for a specific type of PDCCH / PDSCH, corresponding preamble configurations are predefined. For example, for the Type 0-PDCCH of System Information Block (SIB) 1 / the PDSCH scheduled by Type 0-PDCCH, etc., corresponding preamble configurations are predefined. For another example, for Demodulation Reference Signal (DMRS) pattern 1, preamble configuration 1 is adopted, and for DMRS pattern 2, preamble configuration 2 is adopted.

[0101] In the above optional implementation manner, as described in (4) above, when the terminal determines part or all of the configuration information of the target preamble according to the signal type for transmitting the target data and the predefined rules, for a specific signal, the Synchronization Signal and PBCH block (SSB) or the Tracking Reference Signal (TRS) or the CSI Reference Signal (CSI-RS) or the Sounding Reference Signal (SRS), there is no need to configure a preamble.

[0102] In the embodiments of the present application, for different channel / signal types, for example, for SSB, no preamble is required. The UE can perform time-frequency offset estimation based on the Primary Synchronization Signal (PSS) / Secondary Synchronization Signal (SSS) for the reception of the Physical Broadcast Channel (PBCH). For example, for TRS / CSI-RS / SRS signals, the UE can also perform time-frequency offset estimation based on the signal itself without a preamble. For example, for some sequence-generated formats of PUCCH (such as PUCCH format 0) and PRACH (which is also sequence-generated), no preamble is required. For other signals, such as other PDSCH / PDCCH, to support time-frequency offset estimation, a preamble needs to be sent before the PDSCH / PDCCH. Another example is that for the SIB1 that the UE needs to receive after initial access, a default preamble configuration can be predefined for the corresponding Type0-PDCCH / PDSCH scheduled by the Type0-PDCCH. For example, the time-frequency domain resource configuration of the preamble corresponding to the default Type0-PDCCH / PDSCH scheduled by the Type0-PDCCH is Figure 4a the configuration method shown therein.

[0103] In the above optional implementation, as described in (9) above, when the terminal determines some or all of the configuration information of the target preamble according to the carrier frequency band where the terminal is located and the predefined rules, when the frequency band is in the low-frequency band, it corresponds to Figure 5 pattern-1 therein, and when the frequency band is in the high-frequency band, it corresponds to Figure 5 pattern-2 therein. Alternatively, when the frequency band is in the low-frequency band, the time-domain allocation resource of the preamble is 1 symbol, and when the frequency band is in the high-frequency band, the time-domain allocation resource of the preamble is 2 symbols. For example, a specific frequency band corresponds to a BWP that supports multiple preamble configurations, and the terminal can determine which preamble configuration it is according to other information such as the subcarrier spacing SCS / waveform / BWP type, etc. Other frequency bands correspond to a BWP that supports one preamble configuration.

[0104] In the above optional implementation manner, as described in (11) above, when the terminal determines part or all of the configuration information of the target preamble according to the type of the terminal and the predefined rules, for terminals supporting lower time or frequency domain accuracy and terminals supporting better time or frequency domain accuracy, the network-side device configures different preamble parameters. For a terminal supporting lower time or frequency domain accuracy, the network-side device configures the preamble as the first configuration. For a terminal supporting better time or frequency domain accuracy, the network-side device configures the preamble as the second configuration. The preamble parameters corresponding to different preamble configurations are not completely the same.

[0105] In the above optional implementation manner, as described in (12) above, the terminal determines part or all of the configuration information of the target preamble according to the target information and the predefined rules, where the target information may include the receiver type of the terminal. For example, by defining multiple receiver types with different achievable time or frequency domain accuracies, the network-side device configures different preamble parameters for the terminal based on the receiver type. If the terminal reports using a receiver with lower time or frequency domain accuracy, the network-side device may configure the preamble as the first configuration. If the terminal reports using a receiver with higher time or frequency domain accuracy, the network-side device configures the preamble as the second configuration. The preamble parameters corresponding to different preamble configurations are not completely the same.

[0106] In the above optional implementation manner, as described in (13) above, the terminal can determine part or all of the configuration information of the target preamble according to the transmission mode of the terminal and the predefined rules. For the transmission mode, multiple transmission modes can be defined. Different transmission modes correspond to different preamble configurations. For example, the low-power transmission mode corresponds to a specific preamble configuration. Among them, transmission mode one is the low-power transmission mode, corresponding to the first preamble type, and transmission mode two is the normal-power transmission mode, corresponding to the second preamble type. The network-side device can configure the preamble based on the transmission mode.

[0107] In the above optional implementation manner, as described in (14) above, the terminal can determine part or all of the configuration information of the target preamble according to the modulation and coding scheme of the terminal and the predefined rules. Different modulation and coding schemes correspond to different preamble configurations. When the modulation order is higher than the predefined or configured threshold, the preamble is the first configuration, otherwise, it is the second configuration. For example, when the modulation order is equal to 2, the number of symbols occupied by the time synchronization / time offset estimation sequence in the preamble is 1. When it is greater than 2, the number of symbols occupied by the time synchronization / time offset estimation sequence in the preamble is 2. The UE can determine the corresponding preamble configuration according to the modulation and coding scheme (MCS).

[0108] S302: The terminal sends the target preamble to the network-side device or receives the target preamble sent by the network-side device based on the configuration information.

[0109] In an embodiment of the present application, after determining the configuration information of the target preamble, the terminal may send the target preamble to the network-side device or receive the target preamble sent by the network-side device according to the configuration information.

[0110] In an alternative implementation, the method further includes: after sending the target preamble to the network-side device, the terminal sends the target data associated with the target preamble; or, after receiving the target preamble sent by the network-side device, the terminal receives the target data associated with the target preamble.

[0111] In the above alternative implementation, the target preamble is associated with the transmission of the target data. After the terminal sends the target preamble to the network-side device, it may send the target data associated with the target preamble. Or, after the terminal receives the target preamble sent by the network-side device, it may receive the target data associated with the target preamble. For example, the terminal may complete time synchronization, frequency offset estimation and recovery, channel estimation, etc. based on the received target preamble, and then receive or send the target data associated with the target preamble.

[0112] In an alternative implementation, control information for demodulating the target data may also be transmitted between the transmission of the target preamble and the target data.

[0113] In the preamble transmission method of the embodiment of the present application, the terminal may determine the configuration information of the target preamble, where the target preamble is associated with the transmission of the target data, and then based on the configuration information, send the target preamble to the network-side device or receive the target preamble sent by the network-side device. Thus, the terminal can send or receive a preamble associated with data transmission, and then can complete time synchronization, frequency offset estimation and recovery, and channel estimation, etc. through the preamble, so as to ensure the reliability of data transmission in the cellular system, maintain the high-speed transmission of the target data, reduce the power consumption of the terminal, and meet the user's needs.

[0114] Based on the same inventive concept, the embodiment of the present application also provides another preamble transmission method.

[0115] Figure 6 The flowchart showing another preamble transmission method in the embodiment of the present application, this method 600 may be executed by the network-side device. In other words, the method may be executed by software or hardware installed on the network-side device. The network-side device includes but is not limited to Figure 1The base station in []. It should be noted that in the following embodiments, only the operations of the network-side device are described. For other matters not covered, reference can be made to the relevant description of Method 300 above.

[0116] As Figure 6 shown, the method may include the following steps.

[0117] S601: The network-side device determines the configuration information of the target preamble.

[0118] Wherein, the target preamble is associated with the target data transmission.

[0119] In the embodiments of the present application, the network-side device may determine the configuration information of the target preamble associated with the target data transmission.

[0120] In an alternative implementation, after the network-side device determines the configuration information of the target preamble, the method includes: The network-side device instructs the terminal of the configuration information of the target preamble. In this alternative implementation, after the network-side device determines the configuration information of the target preamble, it can instruct the terminal of the configuration information of the target preamble, so that the terminal can learn the configuration information of the target preamble.

[0121] In an alternative implementation, the network-side device instructs the terminal of the configuration information of the target preamble, including one of the following:

[0122] (1) The network-side device configures the configuration information of the target preamble for the terminal through the first network signaling. The network-side device can configure the preamble parameters statically through the first network signaling, such as RRC signaling, to configure the configuration information of the target preamble for the terminal.

[0123] (2) The network-side device activates the target preamble parameter through the second network signaling, where the target preamble parameter is one of the candidate values in the preamble parameter set including multiple candidate values configured or predefined by the network-side device. The network-side device can activate the target preamble parameter through the second network signaling, such as MAC / DCI, and configure the configuration information of the target preamble for the terminal. Among them, the target preamble parameter can be configured by the network-side device, such as configured by RRC signaling, or one of the candidate values in the preamble parameter set including multiple candidate values predefined.

[0124] (3) The network-side device sends the third network signaling to the terminal, where the third network signaling carries a first indication, and the first indication information is used to indicate the configuration of the target preamble. In practical applications, the network-side device can directly indicate the preamble configuration information through MAC / DCI. For example, the first indication information carried by PDCCH / PDSCH indicates the preamble configuration.

[0125] In an alternative implementation, the network-side device determines the configuration information of the target preamble, including: the network-side device determines part or all of the configuration information of the target preamble according to the target information and predefined rules, where the target information includes at least one of the following:

[0126] (1) The subcarrier spacing SCS used for transmitting the target data;

[0127] (2) The waveform used for transmitting the target data; for example, the network-side device can configure two preamble configurations. For the waveform based on OFDM, it corresponds to the first preamble configuration, and for the waveform based on OOK, it corresponds to the second preamble configuration. The parameter values corresponding to the different preamble configurations are not exactly the same.

[0128] (3) The channel type for transmitting the target data;

[0129] For example, for a specific channel, such as PRACH, or for a channel of a specific format, such as PUCCH format-0, no preamble needs to be configured;

[0130] For example, for a specific type of PDCCH / PDSCH, a corresponding preamble configuration is predefined. For example, for receiving SIB1's Type0-PDCCH / Type0-PDCCH-scheduled PDSCH, etc.

[0131] (4) The signal type for transmitting the target data;

[0132] For example, for specific signals such as SSB / TRS / CSI-RS / SRS, no preamble needs to be configured;

[0133] For example, the network-side device can configure two preamble configurations: preamble configuration one and preamble configuration two. For DMRS pattern one, preamble configuration one is adopted, and for DMRS pattern two, preamble configuration two is adopted.

[0134] (5) The time interval of the target data transmission relative to the target signal or target channel;

[0135] For example, the network-side device can configure two preamble configurations: preamble configuration one and preamble configuration two. For PDCCH / PDSCH whose time interval with TRS is less than a predefined threshold, preamble configuration one is adopted, otherwise preamble configuration two is adopted. Optionally, preamble configuration one can be configured as having no preamble.

[0136] (6) The type of cyclic prefix CP used;

[0137] For example, the network-side device can configure two preamble configurations: preamble configuration one and preamble configuration two. For example, for the extended CP (ECP), preamble configuration one is adopted, otherwise preamble configuration two is adopted.

[0138] (7) The type corresponding to the bandwidth part BWP;

[0139] For example, the network-side device can configure two preamble configurations: the first preamble configuration and the second preamble configuration. For example, the initial BWP corresponds to the first preamble configuration, a specific active BWP corresponds to the second preamble configuration, or one BWP corresponds to multiple preamble configurations, and the terminal can determine which preamble configuration it is according to other information.

[0140] (8) The carrier type used to transmit the target data;

[0141] For example, the network-side device can configure two preamble configurations: the first preamble configuration and the second preamble configuration. For carriers with a carrier bandwidth less than a predefined or configured threshold, it corresponds to the first preamble configuration, otherwise it corresponds to the second preamble configuration.

[0142] (9) The carrier frequency band where the target data is transmitted;

[0143] For example, a specific frequency band corresponds to a BWP supporting multiple preamble configurations, and the terminal can determine which one it is according to other information. Other frequency bands correspond to a BWP supporting one preamble configuration.

[0144] (10) Cell type;

[0145] For example, the network-side device can configure two preamble configurations: the first preamble configuration and the second preamble configuration. The NTN cell corresponds to the first preamble configuration, and the non-NTN cell corresponds to the second preamble configuration.

[0146] (11) The type of the terminal.

[0147] For example, the network-side device can configure or the protocol can stipulate multiple preamble configurations, and different terminal types correspond to different preamble configurations.

[0148] (12) The receiver type of the terminal.

[0149] For example, the network-side device can configure or the protocol can stipulate multiple preamble configurations, and different receiver types correspond to different preamble configurations.

[0150] (13) The transmission mode of the terminal.

[0151] For example, the network-side device can configure or the protocol can stipulate multiple preamble configurations, and different transmission models correspond to different preamble configurations.

[0152] (14) The modulation and coding scheme used to transmit the target data.

[0153] For example, the network side device can configure or the protocol can stipulate multiple preamble configurations, and different modulation and coding schemes correspond to not completely identical preamble configurations.

[0154] (15) The service type corresponding to the target data.

[0155] For example, the network side device can configure not completely identical preamble configurations for different service types. The network side device or the protocol can stipulate predefined rules, and according to the predefined rules, the preamble configurations corresponding to various service types can be determined. For example, the network side device can configure or the protocol can stipulate two preamble configurations. For a specific service type, it corresponds to the first preamble configuration, and other service types correspond to the second preamble configuration. The UE can determine the corresponding preamble configuration according to the service type.

[0156] In the above optional implementation manners, the network side device can determine part or all of the configuration information of the target preamble according to at least one of the above 15 types of target information and the predefined rules, and different target information corresponds to not completely identical preambles.

[0157] For example, for the subcarrier spacing SCS configured by the network side device for the terminal, when it is greater than a certain agreed threshold (such as 960 kHz), then for the part of the preamble configured by the network side device for the terminal used for channel estimation, the frequency domain mapping pattern in a resource block (RB) is Figure 5 pattern-1 in, that is, mapping is performed every other subcarrier, and 6 subcarriers on one RB are used to place the preamble. Otherwise, its corresponding frequency domain mapping pattern is pattern-2 in the following figure, that is, mapping is performed on all subcarriers, and all subcarriers on one RB are used to place the preamble.

[0158] In addition, for different channel / signal types, the network side device can configure not completely identical preamble configurations. For some specific signals, such as TRS / CSI-RS / SRS signals, no preamble is required. For example, for some sequence-based formats of PUCCH (such as PUCCH format0) and PRACH (which is also sequence-based), no preamble is required either. For other signals, such as other PDSCH / PDCCH, to support time-frequency offset estimation, a preamble needs to be sent before PDSCH / PDCCH. Another example is that when the UE needs to receive SIB1 after initial access, a default preamble configuration can be predefined for the corresponding Type0-PDCCH / Type0-PDCCH-scheduled PDSCH at this time.

[0159] S602: The network - side device receives the target preamble sent by the terminal or sends the target preamble to the terminal based on the configuration information.

[0160] In an embodiment of the present application, after determining the configuration information of the target preamble associated with the target data transmission, the network - side device can, according to the configuration information, receive the target preamble sent by the terminal or send the target preamble to the terminal.

[0161] Optionally, after receiving the target preamble sent by the terminal, the network - side device can also receive the target data associated with the target preamble sent by the terminal; or after sending the target preamble to the terminal, the network - side device can also send the target data associated with the target preamble to the terminal. For example, the network - side device can complete time synchronization, frequency offset estimation and recovery, and channel estimation based on the received target preamble, thereby ensuring the reliability of data transmission in the cellular system. Or, the network - side device can send the target preamble for at least one of time synchronization, frequency offset estimation and recovery, and channel estimation to the terminal, and then the network - side device sends the target data to the terminal.

[0162] In the preamble transmission method of the embodiment of the present application, the network - side device can determine the configuration information of the target preamble associated with the target data transmission, and then, based on the configuration information, receive the target preamble sent by the terminal or send the target preamble to the terminal. The target preamble transmitted by the network - side device is the preamble associated with the target data transmission, and the sending and receiving of the target preamble can be carried out according to the target preamble configuration information. The network - side device in the embodiment of the present application is not limited to the base station. Through the technical solution provided by the embodiment of the present application, time synchronization, time offset estimation, frequency offset estimation and recovery, and channel estimation can be completed between the terminal and the network - side device through the preamble, thereby ensuring the reliability of data transmission in the cellular system, maintaining the high - speed transmission of the target data, reducing the power consumption of the terminal, and meeting the user requirements.

[0163] A preamble transmission method provided by an embodiment of the present application, the execution subject can be a preamble transmission device. In the embodiment of the present application, taking the preamble transmission device executing the preamble transmission method as an example, the preamble transmission device provided by the embodiment of the present application is described.

[0164] Figure 7 The structural schematic diagram of a preamble transmission device provided by an exemplary embodiment of the present application is shown. This device can be located in the terminal and can implement all or part of the content in the Figure 3 embodiment as shown, such as Figure 7 shown, the preamble transmission device 700 includes: a first determination module 701 and a first transmission module 702.

[0165] In an embodiment of the present application, a first determination module 701 is configured to determine configuration information of a target preamble, where the target preamble is associated with target data transmission. A first transmission module 702 is configured to send the target preamble to a network-side device or receive the target preamble sent by the network-side device based on the configuration information.

[0166] In an alternative implementation, the first determination module 701 determines the configuration information of the target preamble, including at least one of the following:

[0167] Determine the configuration information of the target preamble based on a predefined rule;

[0168] Determine the configuration information of the target preamble based on an indication from a network-side device.

[0169] In an alternative implementation, the determining the configuration information of the target preamble based on an indication from a network-side device includes one of the following:

[0170] Determine the configuration information of the target preamble based on preamble parameters configured by the network-side device through a first network signaling;

[0171] Determine the configuration information of the target preamble based on target preamble parameters activated by the network-side device through a second network signaling, where the target preamble parameters are one candidate value in a preamble parameter set including multiple candidate values configured or predefined by the network-side device;

[0172] Determine the configuration information of the target preamble based on first indication information carried in a third network signaling sent by the network-side device, where the first indication information is used to indicate the configuration of the target preamble.

[0173] In an alternative implementation, the target preamble includes one of the following:

[0174] A first sequence, the first sequence being used for at least one of the following: time domain synchronization, time offset estimation, frequency offset estimation, channel estimation;

[0175] A second sequence and a third sequence, where the second sequence is used for at least one of the following: time domain synchronization, time offset estimation, and the third sequence is used for at least one of the following: frequency offset estimation, channel estimation.

[0176] In an alternative implementation, at least one of the first sequence, the second sequence, and the third sequence is generated based on at least one of the following:

[0177] ZC sequence;

[0178] Pseudo-random sequence;

[0179] Predefined dedicated sequences.

[0180] In an alternative implementation, the configuration information of the target preamble includes at least one of the following:

[0181] Second indication information for indicating whether to transmit the target preamble;

[0182] The sequence for generating the target preamble;

[0183] The time-domain resource configuration information of the target preamble;

[0184] The frequency-domain resource configuration information of the target preamble.

[0185] In an alternative implementation, the time-domain resource configuration information includes at least one of the following:

[0186] The time-domain start position of the target preamble;

[0187] The time-domain length of the target preamble.

[0188] In an alternative implementation, the frequency-domain resource configuration information includes at least one of the following:

[0189] The frequency-domain resources allocated for the target preamble;

[0190] The mapping pattern of the target preamble on the allocated frequency-domain resources.

[0191] In an alternative implementation, the first determination module 701 determines the configuration information of the target preamble, including:

[0192] Determine some or all of the configuration information of the target preamble according to the target information and predefined rules, where the target information includes at least one of the following:

[0193] The subcarrier spacing SCS used for transmitting the target data;

[0194] The waveform used for transmitting the target data;

[0195] The channel type for transmitting the target data;

[0196] The signal type for transmitting the target data;

[0197] The time interval of the target data transmission relative to the target signal or target channel;

[0198] The type of cyclic prefix CP used;

[0199] The type of bandwidth part BWP for transmitting the target data;

[0200] The type of carrier used to transmit the target data;

[0201] The carrier frequency band where the target data is transmitted;

[0202] The type of cell where the terminal is located;

[0203] The type of the terminal;

[0204] The receiver type of the terminal;

[0205] The transmission mode of the terminal;

[0206] The modulation and coding scheme used to transmit the target data;

[0207] The service type corresponding to the target data.

[0208] In an alternative implementation, the first transmission module 702 is further configured to:

[0209] After sending the target preamble to the network-side device, send the target data associated with the target preamble; or,

[0210] After receiving the target preamble sent by the network-side device, receive the target data sent by the network-side device.

[0211] The preamble transmission device in the embodiments of the present application may be an electronic device, such as an electronic device with an operating system, or a component in an electronic device, such as an integrated circuit or a chip. The electronic device may be a terminal or other devices other than the terminal. Exemplarily, the terminal may include, but is not limited to, the types of the terminal 11 listed above, and other devices may be a server, a Network Attached Storage (NAS), etc., which are not specifically limited in the embodiments of the present application.

[0212] The preamble transmission device provided in the embodiments of the present application can implement Figure 3 each process implemented by the method embodiments and achieve the same technical effects. To avoid repetition, details are not described herein again.

[0213] Another preamble transmission method provided in the embodiments of the present application may be executed by a preamble transmission device. In the embodiments of the present application, taking the preamble transmission device executing the preamble transmission method as an example, the preamble transmission device provided in the embodiments of the present application is described.

[0214] Figure 8 FIG. shows a schematic structural diagram of another preamble transmission device provided in an exemplary embodiment of the present application. The device can implement asFigure 6 All or part of the content in the illustrated embodiment, such as Figure 8 As shown, the preamble transmission device 800 includes: a second determination module 801 and a second transmission module 802.

[0215] In an embodiment of the present application, the second determination module 801 is configured to determine configuration information of a target preamble, where the target preamble is associated with target data transmission; the second transmission module 802 is configured to receive the target preamble sent by a terminal or send the target preamble to the terminal based on the configuration information.

[0216] In an alternative implementation, the second transmission module 802 is further configured to indicate the configuration information of the target preamble to the terminal.

[0217] In an alternative implementation, the second transmission module 802 indicating the configuration information of the target preamble to the terminal includes one of the following:

[0218] Configuring the configuration information of the target preamble for the terminal through a first network signaling;

[0219] Activating target preamble parameters through a second network signaling, where the target preamble parameters are one candidate value in a preamble parameter set including multiple candidate values configured or predefined by a network-side device;

[0220] Sending a third network signaling to the terminal, where the third network signaling carries a first indication, and the first indication information is used to indicate the configuration of the target preamble.

[0221] In an alternative implementation, the second determination module 801 determining the configuration information of the target preamble includes:

[0222] Determining part or all of the configuration information of the target preamble according to target information and a predefined rule, where the target information includes at least one of the following:

[0223] The subcarrier spacing SCS used for transmitting the target data;

[0224] The waveform used for transmitting the target data;

[0225] The channel type for transmitting the target data;

[0226] The signal type for transmitting the target data;

[0227] The time interval of the target data transmission relative to a target signal or a target channel;

[0228] The type of cyclic prefix CP used;

[0229] The type of the bandwidth part (BWP) for transmitting the target data;

[0230] The type of the carrier used for transmitting the target data;

[0231] The carrier frequency band where the target data is transmitted;

[0232] Cell type;

[0233] The type of the terminal;

[0234] The receiver type of the terminal;

[0235] The transmission mode of the terminal;

[0236] The modulation and coding scheme used for transmitting the target data;

[0237] The service type corresponding to the target data.

[0238] The preamble transmission device provided by the embodiments of the present application can implement Figure 6 each process implemented by the method embodiments and achieve the same technical effects. To avoid repetition, it will not be elaborated here.

[0239] As Figure 9 shown, the embodiments of the present application further provide a communication device 900, including a processor 901 and a memory 902. A program or instruction that can run on the processor 901 is stored on the memory 902. For example, when the communication device 900 is a terminal, when the program or instruction is executed by the processor 901, each step of the above method embodiment of a preamble transmission method 300 is implemented, and the same technical effects can be achieved. When the communication device 900 is a network-side device, when the program or instruction is executed by the processor 901, each step of the above method embodiment of another preamble transmission method 600 is implemented, and the same technical effects can be achieved. To avoid repetition, it will not be elaborated here.

[0240] The embodiments of the present application further provide a terminal, including a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run a program or instruction to implement the steps in the method embodiments as Figure 3 shown. This terminal embodiment corresponds to the above terminal-side method embodiments. Each implementation process and implementation manner of the above method embodiments can be applied to this terminal embodiment, and the same technical effects can be achieved. Specifically, Figure 10 FIG. is a schematic hardware structure diagram of a terminal for implementing the embodiments of the present application.

[0241] The terminal 1000 includes, but is not limited to, at least some components such as a radio frequency unit 1001, a network module 1002, an audio output unit 1003, an input unit 1004, a sensor 1005, a display unit 1006, a user input unit 1007, an interface unit 1008, a memory 1009, and a processor 1010.

[0242] Those skilled in the art can understand that the terminal 1000 may further include a power source (such as a battery) for supplying power to each component. The power source can be logically connected to the processor 1010 through a power management system, so as to implement functions such as management of charging, discharging, and power consumption management through the power management system. Figure 10 The terminal structure shown does not limit the terminal. The terminal may include more or fewer components than those shown, or combine certain components, or have different component arrangements, which will not be elaborated here.

[0243] It should be understood that in the embodiments of the present application, the input unit 1004 may include a graphics processing unit (GPU) 10041 and a microphone 10042. The graphics processing unit 10041 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 1006 may include a display panel 10061, and the display panel 10061 may be configured in the form of a liquid crystal display, an organic light-emitting diode, etc. The user input unit 1007 includes at least one of a touch panel 10071 and other input devices 10072. The touch panel 10071 is also called a touch screen. The touch panel 10071 may include two parts: a touch detection device and a touch controller. The other input devices 10072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which will not be elaborated here.

[0244] In the embodiments of the present application, after receiving downlink data from a network-side device, the radio frequency unit 1001 can transmit it to the processor 1010 for processing; in addition, the radio frequency unit 1001 can send uplink data to the network-side device. Generally, the radio frequency unit 1001 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low-noise amplifier, a duplexer, etc.

[0245] The memory 1009 can be used to store software programs or instructions as well as various data. The memory 1009 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data. Among them, the first storage area may store an operating system, application programs or instructions required for at least one function (such as a sound playback function, an image playback function, etc.). In addition, the memory 1009 may include volatile memory or non-volatile memory. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable ROM (PROM), an erasable programmable ROM (EPROM), an electrically erasable programmable ROM (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), a static RAM (SRAM), a dynamic RAM (DRAM), a synchronous DRAM (SDRAM), a double data rate SDRAM (DDR SDRAM), an enhanced SDRAM (ESDRAM), a synch link DRAM (SLDRAM), and a direct rambus RAM (DRRAM). The memory 1009 in the embodiments of the present application includes but is not limited to these and any other suitable types of memory.

[0246] The processor 1010 may include one or more processing units; optionally, the processor 1010 integrates an application processor and a modem processor. Among them, the application processor mainly processes operations related to the operating system, user interface, and application programs, etc., and the modem processor mainly processes wireless communication signals, such as a baseband processor. It can be understood that the above modem processor may not be integrated into the processor 1010 either.

[0247] Among them, the processor 1010 is used to determine the configuration information of the target preamble, where the target preamble is associated with target data transmission;

[0248] The radio frequency unit 1001 is used to send the target preamble to the network-side device or receive the target preamble sent by the network-side device based on the configuration information.

[0249] In an alternative implementation, the processor 1010 determines the configuration information of the target preamble, including at least one of the following:

[0250] Determine the configuration information of the target preamble based on a predefined rule;

[0251] Determine the configuration information of the target preamble based on an indication from a network-side device.

[0252] In an alternative implementation, the processor 1010 determines the configuration information of the target preamble based on an indication from a network-side device, including one of the following:

[0253] Determine the configuration information of the target preamble based on the preamble parameters configured by the network-side device through a first network signaling;

[0254] Determine the configuration information of the target preamble based on the target preamble parameters activated by the network-side device through a second network signaling, where the target preamble parameters are one candidate value in a set of preamble parameters configured or predefined by the network-side device and including multiple candidate values;

[0255] Determine the configuration information of the target preamble based on the first indication information carried in the third network signaling sent by the network-side device, where the first indication information is used to indicate the configuration of the target preamble.

[0256] In an alternative implementation, the processor 1010 determines the configuration information of the target preamble, including:

[0257] Determine part or all of the configuration information of the target preamble according to the target information and a predefined rule, where the target information includes at least one of the following:

[0258] The subcarrier spacing SCS used to transmit the target data;

[0259] The waveform used to transmit the target data;

[0260] The channel type for transmitting the target data;

[0261] The signal type for transmitting the target data;

[0262] The time interval of the target data transmission relative to the target signal or target channel;

[0263] The type of cyclic prefix CP used;

[0264] The type of bandwidth part BWP for transmitting the target data;

[0265] The type of carrier used to transmit the target data;

[0266] The carrier frequency band for transmitting the target data;

[0267] The cell type where the terminal is located;

[0268] The type of the terminal;

[0269] The receiver type of the terminal;

[0270] The transmission mode of the terminal;

[0271] The modulation and coding scheme used for transmitting the target data;

[0272] The service type corresponding to the target data.

[0273] In an alternative implementation, the radio frequency unit 1001 is further configured to send the target data associated with the target preamble after sending the target preamble to the network-side device; or,

[0274] receive the target data associated with the target preamble after receiving the target preamble sent by the network-side device.

[0275] It can be understood that the implementation processes of the various implementation manners mentioned in this embodiment may refer to the relevant descriptions of the embodiment of the preamble transmission method 300 and achieve the same or corresponding technical effects. To avoid repetition, they will not be elaborated here.

[0276] This application embodiment further provides a network-side device, including a processor and a communication interface, where the communication interface is coupled to the processor, and the processor is configured to run a program or an instruction to implement as Figure 6 shown in the steps of the method embodiment. This network-side device embodiment corresponds to the above network-side device method embodiment. The various implementation processes and implementation manners of the above method embodiment can all be applied to this network-side device embodiment and can achieve the same technical effects.

[0277] Specifically, this application embodiment further provides a network-side device. As Figure 11 shown, this network-side device 1100 includes: an antenna 1101, a radio frequency device 1102, a baseband device 1103, a processor 1104, and a memory 1105. The antenna 1101 is connected to the radio frequency device 1102. In the uplink direction, the radio frequency device 1102 receives information through the antenna 1101 and sends the received information to the baseband device 1103 for processing. In the downlink direction, the baseband device 1103 processes the information to be sent and sends it to the radio frequency device 1102. The radio frequency device 1102 processes the received information and then sends it out through the antenna 1101.

[0278] The method executed by the network - side device in the above embodiments can be implemented in the baseband device 1103, and the baseband device 1103 includes a baseband processor.

[0279] The baseband device 1103 may include, for example, at least one baseband board, on which a plurality of chips are provided, such as Figure 11 shown, and one of the chips is, for example, a baseband processor, which is connected to the memory 1105 through a bus interface to call the program in the memory 1105 and execute the operations of the network device shown in the above method embodiments.

[0280] The network - side device may further include a network interface 1106, and this interface is, for example, a Common Public Radio Interface (CPRI).

[0281] Specifically, the network - side device 1100 in the embodiments of the present application further includes: instructions or programs stored on the memory 1105 and executable on the processor 1104. The processor 1104 calls the instructions or programs in the memory 1105 to execute Figure 8 the methods executed by the modules shown, and achieves the same technical effects. To avoid repetition, it will not be elaborated here.

[0282] The embodiments of the present application further provide a readable storage medium. Programs or instructions are stored on the readable storage medium, and when the programs or instructions are executed by a processor, the various processes of the above - mentioned method 300 embodiments for transmitting a preamble or the various processes of the above - mentioned method 600 embodiments for transmitting another preamble are implemented, and the same technical effects can be achieved. To avoid repetition, it will not be elaborated here.

[0283] Among them, the processor is the processor in the terminal described in the above embodiments. The readable storage medium includes computer - readable storage media, such as computer read - only memory ROM, random access memory RAM, magnetic disks, or optical discs, etc. In some examples, the readable storage medium may be a non - transient readable storage medium.

[0284] The embodiments of the present application further provide a chip. The chip includes a processor and a communication interface, and the communication interface is coupled to the processor. The processor is used to run programs or instructions to implement the various processes of the above - mentioned method 300 embodiments for transmitting a preamble or the various processes of the above - mentioned method 600 embodiments for transmitting another preamble, and the same technical effects can be achieved. To avoid repetition, it will not be elaborated here.

[0285] It should be understood that the chip mentioned in the embodiments of the present application may also be referred to as a system - on - chip, system chip, chip system, or system - on - a - chip, etc.

[0286] Another embodiment of the present application further provides a computer program / program product. The computer program / program product is stored in a storage medium and is executed by at least one processor to implement each process of the above-described embodiment of the preamble transmission method 300, or to implement each process of the above-described embodiment of the other preamble transmission method 600, and can achieve the same technical effect. To avoid repetition, it will not be elaborated here.

[0287] An embodiment of the present application further provides a wireless communication system, including: a terminal and a network-side device. The terminal can be used to execute the steps of the above-described preamble transmission method 300, and the network-side device can be used to execute the steps of the above-described other preamble transmission method 600.

[0288] It should be noted that in this article, the terms "including", "comprising" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including that 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 a reverse order according to the functions involved. For example, the described methods may be performed in an order different from that described, and various steps may be added, omitted or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0289] Through the description of the above embodiments, those skilled in the art can clearly understand that the above-described embodiment methods can be implemented by means of a computer software product plus a necessary general hardware platform, and of course, can also be implemented by hardware. The computer software product is stored in a storage medium (such as ROM, RAM, magnetic disk, optical disc, etc.) and includes several instructions for causing the terminal or the network-side device to execute the methods described in various embodiments of the present application.

[0290] The embodiments of the present application have been described above with reference to the drawings, but the present application is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Under the inspiration of the present application, those of ordinary skill in the art can also make many forms of embodiments without departing from the purpose of the present application and the scope protected by the claims. These embodiments are all within the protection scope of the present application.

Claims

1. A method for transmitting a preamble, characterized in that, Including: The terminal determines the configuration information of the target preamble, where the target preamble is associated with target data transmission; Based on the configuration information, the terminal sends the target preamble to the network device or receives the target preamble sent by the network device.

2. The method according to claim 1, wherein The terminal determines the configuration information of the target preamble, including at least one of the following: The terminal determines the configuration information of the target preamble based on a predefined rule; The terminal determines the configuration information of the target preamble based on an indication from the network device.

3. The method according to claim 2, wherein The terminal determines the configuration information of the target preamble based on an indication from the network device, including one of the following: The terminal determines the configuration information of the target preamble based on the preamble parameters configured by the network device through the first network signaling; The terminal determines the configuration information of the target preamble based on the target preamble parameters activated by the network device through the second network signaling, where the target preamble parameters are one candidate value in a set of preamble parameters configured or predefined by the network device and including multiple candidate values; The terminal determines the configuration information of the target preamble based on the first indication information carried in the third network signaling sent by the network device, where the first indication information is used to indicate the configuration of the target preamble.

4. The method according to any one of claims 1 to 3, characterized in that, The target preamble includes one of the following: A first sequence, which is used for at least one of the following: time domain synchronization, time offset estimation, frequency offset estimation, channel estimation; A second sequence and a third sequence, where the second sequence is used for at least one of the following: time domain synchronization, time offset estimation, and the third sequence is used for at least one of the following: frequency offset estimation, channel estimation.

5. The method according to claim 4, characterized in that, At least one of the first sequence, the second sequence, and the third sequence is generated based on at least one of the following: ZC sequence; Pseudo-random sequence; Predefined dedicated sequence.

6. The method according to any one of claims 1 to 5, characterized in that, The configuration information of the target preamble includes at least one of the following: Second indication information, used to indicate whether to transmit the target preamble; The sequence used to generate the target preamble; The time domain resource configuration information of the target preamble; The frequency domain resource configuration information of the target preamble.

7. The method according to claim 6, wherein The time domain resource configuration information includes at least one of the following: The time domain start position of the target preamble; The time domain length of the target preamble.

8. The method according to claim 6, wherein The frequency domain resource configuration information includes at least one of the following: The frequency domain resources allocated for the target preamble; The mapping pattern of the target preamble on the allocated frequency domain resources.

9. The method according to any one of claims 1 to 8, characterized in that, The terminal determines the configuration information of the target preamble, including: The terminal determines part or all of the configuration information of the target preamble according to the target information and a predefined rule, where the target information includes at least one of the following: The subcarrier spacing SCS used for transmitting the target data; The waveform used for transmitting the target data; The channel type for transmitting the target data; The signal type for transmitting the target data; The time interval of the target data transmission relative to the target signal or target channel; The type of cyclic prefix CP used; The type of bandwidth part BWP for transmitting the target data; The type of carrier used to transmit the target data; The carrier frequency band where the target data is transmitted; The cell type where the terminal is located; The type of the terminal; The receiver type of the terminal; The transmission mode of the terminal; The modulation and coding scheme used to transmit the target data; The service type corresponding to the target data.

10. The method according to any one of claims 1 to 9, characterized in that, The method further includes: After sending the target preamble to the network-side device, the terminal sends the target data associated with the target preamble; or, After receiving the target preamble sent by the network-side device, the terminal receives the target data associated with the target preamble.

11. A method for transmitting a preamble, characterized in that, Includes: The network-side device determines the configuration information of the target preamble, where the target preamble is associated with the target data transmission; Based on the configuration information, the network-side device receives the target preamble sent by the terminal or sends the target preamble to the terminal.

12. The method according to claim 11, characterized in that After the network-side device determines the configuration information of the target preamble, the method includes: The network-side device indicates the configuration information of the target preamble to the terminal.

13. The method according to claim 12, wherein The network-side device indicates the configuration information of the target preamble to the terminal, including one of the following: The network-side device configures the configuration information of the target preamble for the terminal through the first network signaling; The network-side device activates the target preamble parameter through the second network signaling, where the target preamble parameter is a candidate value in a preamble parameter set including multiple candidate values configured or predefined by the network-side device; The network-side device sends the third network signaling to the terminal, where the third network signaling carries a first indication, and the first indication information is used to indicate the configuration of the target preamble.

14. The method according to any one of claims 11 to 13, characterized in that The network-side device determines the configuration information of the target preamble, including: The network-side device determines part or all of the configuration information of the target preamble according to the target information and predefined rules, where the target information includes at least one of the following: The subcarrier spacing SCS used to transmit the target data; The waveform used to transmit the target data; The channel type for transmitting the target data; The signal type for transmitting the target data; The time interval of the target data transmission relative to the target signal or target channel; The type of cyclic prefix CP used; The type of corresponding bandwidth part BWP; The type of carrier used to transmit the target data; The carrier frequency band where the target data is transmitted; Cell type; The type of the terminal; The receiver type of the terminal; The transmission mode of the terminal; The modulation and coding scheme used to transmit the target data; The service type corresponding to the target data.

15. A transmission device for a preamble, characterized in that, Includes: The first determination module is used to determine the configuration information of the target preamble, where the target preamble is associated with the target data transmission; The first transmission module is used to send the target preamble to the network-side device or receive the target preamble sent by the network-side device based on the configuration information.

16. The device according to claim 15, characterized in that, The first determination module determines the configuration information of the target preamble, including at least one of the following: Determine the configuration information of the target preamble based on predefined rules; Determine the configuration information of the target preamble based on the indication of the network - side device.

17. The device according to claim 16, characterized in that, The determination of the configuration information of the target preamble based on the indication of the network - side device includes one of the following: Determine the configuration information of the target preamble based on the preamble parameters configured by the network - side device through the first network signaling; Determine the configuration information of the target preamble based on the target preamble parameters activated by the network - side device through the second network signaling, where the target preamble parameters are one candidate value in a set of preamble parameters configured or predefined by the network - side device and including multiple candidate values; Determine the configuration information of the target preamble based on the first indication information carried in the third network signaling sent by the network - side device, where the first indication information is used to indicate the configuration of the target preamble.

18. The device according to any one of claims 15 to 17, characterized in that The first determination module determines the configuration information of the target preamble, including: Determine part or all of the configuration information of the target preamble according to the target information and predefined rules, where the target information includes at least one of the following: The sub - carrier spacing (SCS) used for transmitting the target data; The waveform used for transmitting the target data; The channel type for transmitting the target data; The signal type for transmitting the target data; The time interval of the target data transmission relative to the target signal or target channel; The type of cyclic prefix (CP) used; The type of bandwidth part (BWP) for transmitting the target data; The type of carrier used for transmitting the target data; The carrier frequency band where the target data is transmitted; The type of cell where it is located; The type of terminal; The receiver type of the terminal; The transmission mode of the terminal; The modulation and coding scheme used for transmitting the target data; The service type corresponding to the target data.

19. The device according to any one of claims 15 to 18, characterized in that, The first transmission module is further configured to: After sending the target preamble to the network - side device, send the target data associated with the target preamble; or, After receiving the target preamble sent by the network - side device, receive the target data sent by the network - side device.

20. A transmission device for a preamble, characterized in that, It includes: A second determination module, configured to determine the configuration information of the target preamble, where the target preamble is associated with the target data transmission; A second transmission module, configured to receive the target preamble sent by the terminal or send the target preamble to the terminal based on the configuration information.

21. The device according to claim 20, characterized in that, The second transmission module is further configured to indicate the configuration information of the target preamble to the terminal.

22. The device according to claim 21, characterized in that, The second transmission module indicates the configuration information of the target preamble to the terminal, including one of the following: Configure the configuration information of the target preamble for the terminal through the first network signaling; Activate the target preamble parameters through the second network signaling, where the target preamble parameters are one candidate value in a set of preamble parameters configured or predefined by the network - side device and including multiple candidate values; Send the third network signaling to the terminal, where the third network signaling carries a first indication, and the first indication information is used to indicate the configuration of the target preamble.

23. The device according to any one of claims 20 to 22, characterized in that, The second determination module determines the configuration information of the target preamble, including: Determine part or all of the configuration information of the target preamble according to the target information and predefined rules, where the target information includes at least one of the following: The subcarrier spacing SCS used for transmitting the target data; The waveform used for transmitting the target data; The channel type for transmitting the target data; The signal type for transmitting the target data; The time interval of the target data transmission relative to the target signal or target channel; The type of cyclic prefix CP used; The type of bandwidth part BWP for transmitting the target data; The type of carrier used for transmitting the target data; The carrier frequency band where the target data is transmitted; The cell type; The type of the terminal; The receiver type of the terminal; The transmission mode of the terminal; The modulation and coding scheme used for transmitting the target data; The service type corresponding to the target data.

24. A terminal, characterized in that, Comprising a processor and a memory, the memory stores a program or instructions that can run on the processor, and when the program or instructions are executed by the processor, the steps of the preamble transmission method according to any one of claims 1 to 10 are implemented.

25. A network-side device, characterized in that, Comprising a processor and a memory, the memory stores a program or instructions that can run on the processor, and when the program or instructions are executed by the processor, the steps of the preamble transmission method according to any one of claims 11 to 14 are implemented.

26. A readable storage medium, characterized in that, The program or instructions are stored on the readable storage medium, and when the program or instructions are executed by the processor, the preamble transmission method according to any one of claims 1 to 10 is implemented, or the steps of the preamble transmission method according to any one of claims 11 to 14 are implemented.

Images