Data transmission method, device and storage medium

Abstract

The present application proposes a data transmission method, device and storage medium. A data transmission method includes: a first communication terminal performs idle channel assessment on a target resource, wherein the target resource is a target time domain resource corresponding to a second data transmission paused or punctured by a second communication terminal, and the first communication terminal and the second communication terminal meet a transmission multiplexing condition. When it is determined that the channel is idle, the first communication terminal transmits the first data on the channel. When the first communication terminal and the second communication terminal meet the transmission multiplexing condition, transmission multiplexing of the first data of the first communication terminal and the second data of the second communication terminal is realized, thereby improving the utilization rate of spectrum resources.

Description

Technical Field

[0001] The present application relates to a wireless communication network, and in particular to a data transmission method, device and storage medium. Background Art

[0002] The first phase of standardization for the fifth-generation mobile communication technology (5G, also known as New Radio (NR)) has been completed. Based on the trends in standardization and technological development, 5G systems are committed to researching technical indicators such as higher speeds, massive connections, ultra-low latency, higher reliability, and a hundredfold increase in energy efficiency to support new and changing needs. NR-based Unlicensed Spectrum Access (NR-U) technology holds great promise for applications in areas such as the Internet of Things and factory automation, but NR-U currently faces numerous challenges that need to be addressed.

[0003] The use of unlicensed spectrum needs to comply with certain regulatory policies. For example, before a device uses an unlicensed carrier to send data, it must perform Listen Before Talk (LBT, also known as Clear Channel Assessment (CCA)). Only devices that succeed in LBT can send data on the unlicensed carrier. In NR-U, different priority services need to perform LBT before sending data. In order to meet the indicator requirements of high-priority services, under different conditions, high-priority services may need to preempt the resources of low-priority services to send high-priority service data. There is currently no feasible solution for how to multiplex different priority services in NR-U and how to perform LBT during multiplexing. Summary of the Invention

[0004] The present application provides a data transmission method, device and storage medium, which can realize transmission multiplexing of services of different priorities.

[0005] The present invention provides a data transmission method, including:

[0006] The first communication terminal performs a clear channel assessment on a target resource; wherein the target resource is a target time domain resource corresponding to a portion of the second data transmission paused or punctured by the second communication terminal, and the first communication terminal and the second communication terminal meet a transmission multiplexing condition;

[0007] When it is determined that the channel is idle, the first communication terminal transmits first data on the channel.

[0008] The present invention provides a data transmission method, including:

[0009] The second communication terminal suspends or punctures part of the second data transmission; wherein, the first communication terminal takes the target time domain resource corresponding to the suspension or puncture of the second data transmission by the second communication terminal as the target resource, performs idle channel assessment on the target resource, and the first communication terminal and the second communication terminal meet the transmission multiplexing conditions.

[0010] The present invention provides a data transmission method, including:

[0011] The communication node sends a first indication message to the second communication terminal; wherein the first indication message is used to instruct the second communication terminal to suspend or puncture part of the second data transmission, the first communication node uses the target time domain resource corresponding to the suspension or puncture part of the second data transmission of the second communication terminal as the target resource, performs an idle channel assessment on the target resource, and the first communication terminal and the second communication terminal meet the transmission multiplexing condition.

[0012] An embodiment of the present application provides a data transmission device, including: a processor, wherein the processor is configured to implement the data transmission method of any of the above embodiments when executing a computer program.

[0013] An embodiment of the present application provides a storage medium storing a computer program. When the computer program is executed by a processor, any one of the data transmission methods in the embodiments of the present application is implemented.

[0014] With respect to the above embodiments and non-reserved aspects of the present application and their implementation, further explanation is provided in the accompanying drawings, detailed description and claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of an application scenario of a data transmission method provided by an embodiment;

[0016] Figure 2 A flowchart of a data transmission method provided by an embodiment;

[0017] Figure 3A for Figure 2 A schematic diagram of a time-frequency domain resource for data transmission between a first communication terminal and a second communication terminal in the illustrated embodiment;

[0018] Figure 3B for Figure 2 A schematic diagram of another time-frequency domain resource for data transmission by the first communication terminal and the second communication terminal in the embodiment shown;

[0019] Figure 3C for Figure 2A schematic diagram of another time-frequency domain resource for data transmission by the first communication terminal and the second communication terminal in the illustrated embodiment;

[0020] Figure 4 A flowchart of another data transmission method provided by an embodiment;

[0021] Figure 5 A flowchart of another data transmission method provided by an embodiment;

[0022] Figure 6 A schematic structural diagram of a first communication terminal provided by an embodiment;

[0023] Figure 7 A schematic structural diagram of a second communication terminal provided by an embodiment;

[0024] Figure 8 A schematic diagram of the structure of a communication node provided by an embodiment;

[0025] Figure 9 A schematic structural diagram of a data transmission device provided by an embodiment. DETAILED DESCRIPTION

[0026] To make the purpose, technical solutions and advantages of this application more clear, the embodiments of this application will be described in detail below with reference to the accompanying drawings. It should be noted that, unless there is a conflict, the embodiments and features in the embodiments of this application can be combined with each other in any way.

[0027] The data transmission method provided in this application can be applied to a communication system consisting of a first communication terminal and a second communication terminal. Figure 1 Schematic diagram of an application scenario of a data transmission method provided by an embodiment. Figure 1As shown, the first communication terminal 11, the second communication terminal 12, the communication node 13 and the third communication terminal 14 form a communication system. The communication system can be a Global System for Mobile Communications (GSM), a General Packet Radio Service (GPRS) system, a Code Division Multiple Access (CDMA) system, a CDMA2000 system, a Wideband Code Division Multiple Access (WCDMA) system, a Long Term Evolution (LTE) system, an LTE-A system, a 5G system or a World Interoperability for Microwave Access (WiMAX) system. In the communication system, the first communication terminal 11 and the second communication terminal 12 use an unlicensed carrier to transmit data. Optionally, the priority of the first data transmitted by the first communication terminal is higher than the priority of the second data transmitted by the second communication terminal. In this embodiment, the difference between the service corresponding to the first data and the service corresponding to the second data is reflected in at least one of the following: the delay required by the service corresponding to the first data is lower than the delay of the service corresponding to the second data, the reliability required by the service corresponding to the first data is higher than the reliability of the service corresponding to the second data, and the priority specified by the service corresponding to the first data is higher than the priority specified by the service corresponding to the second data. In this embodiment, the service corresponding to the first data is referred to as a high-priority service, and the service corresponding to the second data is referred to as a low-priority service. Services of different priorities have different index requirements. Compared with low-priority services, high-priority services have higher requirements for delay and reliability. In order to meet the index requirements of high-priority services and at the same time maximize the performance of low-priority services, it is necessary to make regulations for the multiplexing of services of different priorities. Currently, there is no corresponding solution in the unlicensed spectrum that can meet the multiplexing requirements.

[0028] The present application provides a data transmission method, so as to realize transmission multiplexing of first data of the first communication terminal and second data of the second communication terminal when the first communication terminal and the second communication terminal meet transmission multiplexing conditions.

[0029] Figure 2 FIG. 1 is a flow chart of a data transmission method provided in an embodiment. Figure 2 As shown, the method provided in this embodiment includes the following steps:

[0030] Step 201: The first communication terminal performs idle channel assessment on a target resource.

[0031] The target resource is a target time domain resource corresponding to a portion of the second data transmission paused or punctured by the second communication terminal, and the first communication terminal and the second communication terminal meet the transmission multiplexing conditions.

[0032] Step 202: When it is determined that the channel is idle, the first communication terminal transmits first data on the channel.

[0033] In this embodiment, the first and second communication terminals can be devices that provide voice and / or other service data connectivity to users, handheld devices with wireless connection capabilities, or other processing devices connected to a wireless modem. The first and second communication terminals can be mobile terminals, such as mobile phones (or "cellular" phones) and computers with mobile terminals. For example, they can be portable, pocket-sized, handheld, computer-built-in, or vehicle-mounted mobile devices that exchange voice and / or data with a wireless access network. Examples include Personal Communication Service (PCS) phones, cordless phones, Session Initiation Protocol (SIP) phones, Wireless Local Loop (WLL) stations, and Personal Digital Assistants (PDAs). The first node may also be referred to as a system, a subscriber unit (SU), a subscriber station (Subscriber Station), a mobile station (Mobile Station), a mobile station (Mobile), a remote station (Remote Station), a remote terminal (Remote Terminal), an access terminal (Access Terminal), a user terminal (User Terminal), a user agent (User Agent), or a user device (User Equipment), without limitation herein.

[0034] In one embodiment, the transmission multiplexing condition includes: a time domain resource corresponding to a channel occupancy time (COT) of the first communication terminal overlaps with a time domain resource corresponding to the COT of the second communication terminal.

[0035] Furthermore, the transmission multiplexing condition may also include: the frequency domain resources corresponding to the COT of the first communication terminal overlap with the frequency domain resources corresponding to the COT of the second communication terminal.

[0036] For ease of description below, the first transmission multiplexing sub-condition is defined as "the time domain resources corresponding to the COT of the first communication terminal overlap with the time domain resources corresponding to the COT of the second communication terminal, and the frequency domain resources corresponding to the COT of the first communication terminal overlap with the frequency domain resources corresponding to the COT of the second communication terminal." The second transmission multiplexing sub-condition is defined as "the time domain resources corresponding to the COT of the first communication terminal overlap with the time domain resources corresponding to the COT of the second communication terminal, and the frequency domain resources corresponding to the COT of the first communication terminal do not overlap with the frequency domain resources corresponding to the COT of the second communication terminal."

[0037] The first communication terminal and the second communication terminal transmit data in the same frequency band. This frequency band is the minimum frequency domain bandwidth unit for communication terminals / communication nodes to perform clear channel assessment. The COT of the second communication terminal is the COT obtained after the second communication terminal performs CCA, and the COT of the first communication terminal is the COT pre-occupied by the first communication terminal.

[0038] Optionally, the priority of the first data transmitted by the first communication terminal is higher than the priority of the second data transmitted by the second communication terminal.

[0039] More specifically, the COT of a first communication terminal is the COT resource occupied by the first communication terminal when transmitting using scheduled or unscheduled resources. The COT of a second communication terminal is the COT actually obtained by the second communication terminal after performing a CCA. That is, the COT of a first communication terminal is the pre-occupied COT, not the actual occupied COT. The first communication terminal will actually occupy this COT only when the CCA detects idle conditions. The COT of a second communication terminal is the COT actually obtained by the second communication terminal after performing a CCA detection.

[0040] The target time domain resource in this embodiment is the resource corresponding to the suspension or puncturing of part of the second data transmission by the second communication terminal. In this embodiment, the suspension or puncturing of part of the second data transmission by the second communication terminal is referred to as the second communication terminal reserving the target time domain resource for the first communication terminal. That is, the second communication terminal reserves the target time domain resource by puncturing part of the time domain symbols, and can also reserve the target time domain resource by pausing the transmission on part of the symbols. On this target time domain resource, the second communication terminal does not send any data. The third communication terminal cannot perform idle channel assessment on the target time domain resource. The third communication terminal is a communication node whose priority of transmitted data is not higher than the priority of the second data and whose occupied time-frequency domain resources overlap with the time-frequency domain resources corresponding to the COT of the second communication terminal.

[0041] In step 201, the first communication terminal may perform CCA on the target resource when the first data needs to be transmitted, or the first communication terminal may perform CCA on the target resource at a preset time interval, or the first communication terminal may perform CCA on the target resource under the instruction of the communication node or other communication terminal. This embodiment does not limit this.

[0042] In a first implementation, when a first communication terminal and a second communication terminal based on scheduling meet any of the aforementioned transmission multiplexing sub-conditions, the first communication terminal sends a scheduling request (SR) to the communication node after the first data arrives. After receiving the SR, the communication node sends downlink control information (DCI) to the first communication terminal for scheduling uplink services. Optionally, the DCI may include transmission resources allocated by the communication node to the first communication terminal.

[0043] The communication node in this embodiment can be a base station (Base Transceiver Station, BTS) in a GSM system or a CDMA system, or a base station (NodeB, NB) in a WCDMA system, or an eNB in LTE, or a relay station or access point, or a base station in a 5G system, etc., which is not limited here.

[0044] Optionally, the communication node may send first indication information to the second communication terminal. The first indication information is used to instruct the second communication terminal to suspend or puncture part of the second data transmission.

[0045] It should be noted that the second communication terminal reserving the target time domain resources for the first communication terminal in response to the communication node's instruction is only one possible implementation method, and other implementation methods are possible. For example, the second communication terminal may reserve the target time domain resources at the instruction of the first communication terminal, or the second communication terminal may reserve the target time domain resources according to preconfigured rules. This embodiment does not impose any restrictions on this.

[0046] Optionally, the communication node may send second indication information to the second communication terminal. The second indication information is used to instruct the second communication terminal to cancel data transmission on the channel on which the first communication terminal transmitted the first data. In other words, the second indication information is used to instruct the second communication terminal to cancel data transmission on resources that overlap with the time domain resources of the first communication terminal.

[0047] It should be noted that, in this implementation, the communication node may send only one of the first indication information and the second indication information to the second communication terminal, or the communication node may send the first indication information and the second indication information as one indication information to the second communication terminal.

[0048] In this implementation, before its own transmission resources arrive, the first communication terminal performs CCA on the target time domain resources reserved by the second communication terminal to obtain corresponding resources for transmitting the first data.

[0049] Furthermore, in this implementation, when the first communication terminal and the second communication terminal based on scheduling meet the first transmission multiplexing sub-condition, the first communication terminal sends an SR to the communication node after the first data arrives. After receiving the SR, the communication node sends a DCI for scheduling uplink services to the first communication terminal, and sends first indication information and / or second indication information to the second communication terminal. The second indication information is used to instruct the second communication terminal to cancel data transmission on resources that overlap with the time-frequency domain resources of the first communication terminal. Before the arrival of its own transmission resources, the first communication terminal performs CCA on the target time-domain resources reserved by the second communication terminal to obtain the corresponding resources for transmitting the first data.

[0050] In the second implementation, when the scheduling-free first and second communication terminals meet any of the aforementioned transmission multiplexing sub-conditions, the target resource is the target time domain resource corresponding to the second communication terminal pausing or puncturing a portion of the second data transmission according to the time domain resource rule. The time domain resource rule includes: the second communication terminal pausing or puncturing a portion of the second data transmission before the first communication terminal's transmission resource arrives; or, when the first communication terminal needs to transmit data on the transmission resource, the second communication terminal pausing or puncturing a portion of the second data transmission before the first communication terminal's transmission resource arrives.

[0051] It should be noted that "the second communication terminal suspends or punctures part of the second data transmission before the transmission resources of the first communication terminal arrive" means that regardless of whether the first communication terminal uses its configured authorized resources, the second communication terminal reserves the target time domain resources for the first communication terminal.

[0052] "When the first communication terminal needs to transmit data on the transmission resources, the second communication terminal suspends or punctures part of the second data transmission when the transmission resources of the first communication terminal arrive" means that when the first communication terminal uses its configured authorized resources, the second communication terminal reserves the target time domain resources for the first communication terminal.

[0053] In this implementation, the second communication terminal may also reserve the target time domain resources under the instruction of the communication node.

[0054] In this implementation, the first communication terminal transmits the first data at the enhanced transmission power on the channel. Correspondingly, the second communication terminal transmits the second data at the reduced transmission power or the original transmission power on the channel where the first communication terminal sends the first data.

[0055] In this implementation, the first communication terminal increases the transmit power of the first data, while the second communication terminal maintains or reduces the transmit power of the second data. After the first communication terminal successfully performs CCA on the target time domain resource, the first communication terminal transmits the first data at the increased transmit power, while the second communication terminal transmits the second data at the original transmit power or the reduced transmit power.

[0056] Furthermore, in this implementation, when the first communication terminal and the second communication terminal that are exempt from scheduling meet the first transmission multiplexing sub-condition, the first communication terminal increases the transmit power of the first data, and the second communication terminal maintains or reduces the transmit power of the second data. The second communication terminal reserves a target time domain resource for the first communication terminal to perform CCA before the first communication terminal sends data.

[0057] In the third implementation, when the first communication terminal and the second communication terminal meet the second transmission multiplexing sub-condition, there are the following two solutions to implement transmission multiplexing of the first data and the second data.

[0058] The first solution: After the first data arrives, the first communication terminal based on scheduling sends an SR to the communication node. After receiving the SR, the communication node sends a DCI for scheduling uplink services to the first communication terminal, and sends the first indication information and / or the second indication information to the second communication terminal. Before the arrival of its own transmission resources, the first communication terminal performs CCA on the target time domain resources reserved by the second communication terminal. After successful execution, the first communication terminal and the second communication terminal occupy their respective time-frequency domain resources to send service data. After the first communication terminal fails to perform CCA, the second communication terminal continues to send the second communication terminal's data after the reserved symbol.

[0059] Figure 3A for Figure 2 A schematic diagram of a time-frequency domain resource for transmitting data between a first communication terminal and a second communication terminal in the embodiment shown. Figure 3A As shown, a frequency band is divided into 10 frequency domain resources, and these 10 frequency domain resources are numbered 1 to 10 respectively. Figure 3AIn the text, the resources occupied by the second communication terminal are referred to as low-priority service resources, and the resources occupied by the first communication terminal are referred to as high-priority service resources. The second communication terminal occupies frequency domain resources 1, 3, 5, 7, and 9 from time slot n to slot n+3 for service transmission. The first communication terminal based on scheduling occupies frequency domain resources 2, 4, 6, 8, and 10 to transmit data starting from slot n+2. The second communication terminal reserves the target time domain resources at the end position of slot n+1. At the same time, the communication node instructs other third communication terminals whose priority is not higher than that of the second communication terminal and whose time and frequency domain resources overlap with those of the second communication terminal that they cannot perform LBT in the reserved time domain resources of slot n+1. The first communication terminal performs LBT on the reserved target time domain resources. After LBT is successful, the second communication terminal and the first communication terminal respectively occupy their respective time and frequency domain resources to transmit data.

[0060] The second solution: The first communication terminal based on scheduling sends an SR to the communication node after the first data arrives. After receiving the SR, the communication node sends a DCI for scheduling uplink services to the first communication terminal. Before the time-frequency domain resources scheduled by the communication node arrive, the first communication terminal performs a CCA detection at the time domain resource position corresponding to the frequency domain resource position it occupies. After the CCA is successful, the first communication terminal uses the time-frequency domain resources allocated by the communication node to transmit data, and the second communication terminal uses its own corresponding time-frequency domain to send data. In the above process, the service transmission of the second communication terminal is not interrupted.

[0061] Figure 3B for Figure 2 Another schematic diagram of time-frequency domain resources for transmitting data between the first communication terminal and the second communication terminal in the embodiment shown. Figure 3B As shown, a frequency band is divided into 10 frequency domain resources, which are numbered 1 to 10. The second communication terminal occupies frequency domain resources 1, 3, 5, 7, and 9 from time slot n to slot n+3 for service transmission. The first communication terminal, based on scheduling, occupies frequency domain resources 2, 4, 6, 8, and 10 for data transmission starting from slot n+2. The first communication terminal performs LBT at the time domain resource positions corresponding to frequency domain resources 2, 4, 6, 8, and 10 at the end position of slot n+1. After the first communication terminal successfully performs LBT, it occupies frequency domain resources 2, 4, 6, 8, and 10 for data transmission starting from slot n+2.

[0062] In the fourth implementation, "the time domain resources corresponding to the COT of the first communication terminal overlap with the time domain resources corresponding to the COT of the second communication terminal" in the first transmission multiplexing sub-condition and the second transmission multiplexing sub-condition can be specifically "the time domain resources corresponding to the COT of the first communication terminal are located within the time domain resources corresponding to the COT of the second communication terminal, and only overlap with the time domain resources corresponding to the shared COT of the second communication terminal and / or the time domain resources corresponding to the shared COT". In this implementation, the first communication terminal based on scheduling sends an SR to the communication node after the first data arrives. After receiving the SR, the communication node sends a DCI for scheduling uplink services to the first communication terminal. The communication node can send a first indication message to the second communication terminal. The first indication message is used to instruct the second communication terminal to reserve target time domain resources for the first communication terminal, and is also used to instruct the second communication terminal to limit the scope of COT sharing.

[0063] It should be noted that in this implementation, the communication node may also send only the first instruction information or the instruction information for limiting the scope of COT sharing to the second communication terminal. Alternatively, after sending the first instruction information, the communication node may send another instruction information to instruct the second communication terminal to limit the scope of COT sharing.

[0064] Figure 3C for Figure 2 The embodiment shown is another schematic diagram of time-frequency domain resources for transmitting data between the first communication terminal and the second communication terminal. Figure 3C As shown, a frequency band is divided into 10 frequency domain resources, and these 10 frequency domain resources are numbered 1 to 10 respectively. The second communication terminal occupies frequency domain resources 1, 3, 5, 7, and 9 from time slot n to slot n+4 for service transmission. The second communication terminal uses the occupied partial resources of slot n+2, slot n+3, and slot n+4 for COT shared resources. The first communication terminal based on scheduling occupies frequency domain resources 2, 4, 6, 8, and 10 to transmit data starting from slot n+4. After receiving the SR from the first communication terminal, the communication node sends a DCI to schedule the uplink service of the first communication terminal and notifies the second communication terminal to limit the COT shared resources. The COT shared resources of the second communication terminal are limited from the original occupied partial resources of slot n+2, slot n+3, and slot n+4 to partial resources of slot n+2 and partial resources of slot n+3. After the first communication terminal successfully performs LBT, it occupies frequency domain resources 2, 4, 6, 8, and 10 to transmit data starting from slot n+4.

[0065] It should be noted that in the above four implementations, the communication node may further send third indication information to the third communication terminal. The third indication information is used to instruct the third communication terminal not to perform CCA on the target time domain resources. The third communication terminal is a communication node whose priority of transmitted data is not higher than the priority of the second data and whose occupied time-frequency domain resources overlap with the time-frequency domain resources corresponding to the COT of the second communication terminal.

[0066] In the above four implementations, if the first data transmission and / or the second data transmission includes repeated transmission, that is, multiple transmissions of the same transport block (TB), the two can be multiplexed in one of the following two multiplexing methods.

[0067] Method 1: If the first data transmission of the first communication terminal includes repeated transmission, the time-frequency domain resources occupied by all repeated transmissions can be regarded as the time-frequency domain resources occupied by the first communication terminal for transmitting the first data. Corresponding to the first transmission multiplexing sub-condition and the second transmission multiplexing sub-condition, the time-frequency domain resources corresponding to the COT of the first communication terminal should include the time-frequency domain resources occupied by all the repeated transmissions; similarly, if the second data transmission of the second communication terminal includes repeated transmission, the time-frequency domain resources corresponding to the COT of the second communication terminal should also include the time-frequency domain resources occupied by all the repeated transmissions; then based on the above definition, execute steps 201-202 provided in this embodiment to realize the multiplexing of the two service data.

[0068] Method 2: Treat each repeated transmission of the first data and / or the repeated transmission of the second data independently, and then process the multiplexing of the two based on the above four implementation methods.

[0069] In a fifth implementation, the target resources include resources corresponding to the reserved frequency band configured for the first data and resources corresponding to the unreserved frequency band other than the reserved frequency band. In this implementation, the first communication terminal and the second communication terminal do not need to meet the transmission multiplexing condition.

[0070] Within a bandwidth, the frequency domain resources within the bandwidth can be divided into multiple frequency bands, and the NR-U device performs LBT in units of frequency bands. After LBT is successful, the corresponding COT can be occupied to transmit data. In order to meet the indicator requirements of high-priority services, one or more frequency bands can be reserved for high-priority services separately, and the reserved frequency bands are only used for high-priority service transmission. Non-reserved frequency bands can support the transmission of high-priority services and low-priority services at the same time. Compared with non-reserved frequency bands, the reserved frequency bands may have more LBT opportunities.

[0071] In this implementation, the first communication terminal performs idle channel assessment on both resources corresponding to the reserved frequency band and resources corresponding to the unreserved frequency band.

[0072] When the first communication terminal successfully performs CCA on the resources corresponding to one of the frequency bands, the COT of the frequency band where the CCA succeeds is selected for data transmission.

[0073] When it is determined that both the channels on the resources corresponding to the reserved frequency band and the channels on the resources corresponding to the unreserved frequency band are idle, the first communication terminal selects the channels on the resources corresponding to the target frequency band according to the frequency band selection rule to transmit the first data. The frequency band selection rule includes any one of the following: selecting the reserved frequency band as the target frequency band; selecting the unreserved frequency band as the target frequency band; selecting the frequency band with the best channel quality among the reserved frequency band and the unreserved frequency band as the target frequency band; or selecting a combination of the reserved frequency band and the unreserved frequency band as the target frequency band. The combination frequency band may include only the reserved frequency band, only the unreserved frequency band, or both the reserved frequency band and the unreserved frequency band.

[0074] The data transmission method provided in this embodiment performs idle channel assessment on a target resource by a first communication terminal, wherein the target resource is a target time domain resource corresponding to a portion of the second data transmission paused or punctured by the second communication terminal, and the first communication terminal and the second communication terminal meet a transmission multiplexing condition. When it is determined that the channel is idle, the first communication terminal transmits the first data on the channel. When the first communication terminal and the second communication terminal meet the transmission multiplexing condition, transmission multiplexing of the first data of the first communication terminal and the second data of the second communication terminal is achieved, thereby improving the utilization rate of spectrum resources.

[0075] Figure 4 This is a flow chart of another data transmission method provided by an embodiment. This embodiment describes the data transmission method provided by this embodiment from the second communication terminal side. Figure 4 As shown, the data transmission method provided in this embodiment includes:

[0076] Step 401: The second communication terminal suspends or punctures part of the second data transmission.

[0077] Among them, the first communication terminal takes the target time domain resource corresponding to the second data transmission paused or punctured by the second communication terminal as the target resource, performs idle channel assessment on the target resource, and the first communication terminal and the second communication terminal meet the transmission multiplexing conditions.

[0078] Optionally, the transmission multiplexing condition includes: the time domain resources corresponding to the COT of the first communication terminal overlap with the time domain resources corresponding to the COT of the second communication terminal.

[0079] Furthermore, the transmission multiplexing condition also includes: the frequency domain resources corresponding to the COT of the first communication terminal overlap with the frequency domain resources corresponding to the COT of the second communication terminal.

[0080] The first communication terminal and the second communication terminal transmit data in the same frequency band. The frequency band is the minimum frequency domain bandwidth unit for a communication terminal / communication node to perform a clear channel assessment. The COT of the second communication terminal is the COT obtained after the second communication terminal performs a clear channel assessment, and the COT of the first communication terminal is the COT pre-occupied by the first communication terminal.

[0081] Optionally, the priority of the first data transmitted by the first communication terminal is higher than the priority of the second data transmitted by the second communication terminal.

[0082] Optionally, before the second communication terminal pauses or punctures part of the second data transmission, the method provided in this embodiment further includes: the second communication terminal receiving first instruction information sent by the communication node, wherein the first instruction information is used to instruct the second communication terminal to pause or puncture part of the second data transmission.

[0083] Optionally, before the second communication terminal reserves the target time domain resources for the first communication terminal, the method provided in this embodiment further includes: the second communication terminal receiving second indication information sent by the communication node, wherein the second indication information is used to instruct the second communication terminal to cancel data transmission on the channel on which the first communication terminal transmitted the first data.

[0084] Optionally, the second communication terminal pauses or punctures part of the second data transmission according to the time domain resource rule. The time domain resource rule includes: the second communication terminal pauses or punctures part of the second data transmission before the first communication terminal's transmission resource arrives, or, when the first communication terminal needs to transmit data on the transmission resource, the second communication terminal pauses or punctures part of the second data transmission before the first communication terminal's transmission resource arrives.

[0085] Optionally, after step 401, the second communication terminal transmits second data at a reduced transmission power on the channel on which the first communication terminal transmits the first data.

[0086] Optionally, when "the time domain resources corresponding to the first communication terminal's channel occupancy time (COT) overlap with the time domain resources corresponding to the second communication terminal's COT" in the first transmission multiplexing sub-condition and the second transmission multiplexing sub-condition, this may specifically include: the time domain resources corresponding to the first communication terminal's COT are within the time domain resources corresponding to the second communication terminal's COT, and overlap only with the time domain resources corresponding to the second communication terminal's shared COT and / or the time domain resources corresponding after the shared COT. Correspondingly, the first indication information is further used to instruct the second communication terminal to limit the scope of COT sharing.

[0087] The data transmission method provided in this embodiment is to transmit the second data by pausing or puncturing part of the second data through the second communication terminal, wherein the first communication terminal uses the target time domain resource corresponding to the second data transmission paused or punctured part of the second communication terminal as the target resource, and performs idle channel assessment on the target resource. The first communication terminal and the second communication terminal meet the transmission multiplexing condition. When the first communication terminal and the second communication terminal meet the transmission multiplexing condition, the transmission multiplexing of the first data of the first communication terminal and the second data of the second communication terminal is realized, thereby improving the utilization rate of the spectrum resources.

[0088] Figure 5 This is a flow chart of another data transmission method provided by an embodiment. This embodiment describes the data transmission method provided by this embodiment from the communication node side. Figure 5 As shown, the data transmission method provided in this embodiment includes:

[0089] Step 501: The communication node sends first indication information to the second communication terminal.

[0090] Among them, the first indication information is used to instruct the second communication terminal to suspend or puncture part of the second data transmission, the first communication node takes the target time domain resource corresponding to the suspension or puncture part of the second data transmission of the second communication terminal as the target resource, performs idle channel assessment on the target resource, and the first communication terminal and the second communication terminal meet the transmission multiplexing conditions.

[0091] Optionally, the transmission multiplexing condition includes: the time domain resources corresponding to the COT of the first communication terminal overlap with the time domain resources corresponding to the COT of the second communication terminal.

[0092] Furthermore, the transmission multiplexing condition also includes: the frequency domain resources corresponding to the COT of the first communication terminal overlap with the frequency domain resources corresponding to the COT of the second communication terminal.

[0093] The first communication terminal and the second communication terminal transmit data in the same frequency band, which is the minimum frequency domain bandwidth unit for communication terminals / communication nodes to perform clear channel assessment. The COT of the second communication terminal is the COT obtained after the second communication terminal performs clear channel assessment, and the COT of the first communication terminal is the COT pre-occupied by the first communication terminal.

[0094] Optionally, the priority of the first data transmitted by the first communication terminal is higher than the priority of the second data transmitted by the second communication terminal.

[0095] Optionally, the data transmission method provided in this embodiment further includes: the communication node sending second instruction information to the second communication terminal, wherein the second instruction information is used to instruct the second communication terminal to cancel data transmission on the channel through which the first communication terminal transmits the first data.

[0096] Optionally, the data transmission method provided in this embodiment further includes: the communication node sending third indication information to a third communication terminal. The third indication information is used to indicate that the third communication terminal cannot perform idle channel assessment on the target time domain resources, where the priority of the third communication terminal transmitting data is not higher than the priority of the second data and the time-frequency domain resources occupied by the third communication terminal overlap with the time-frequency domain resources corresponding to the COT of the second communication terminal.

[0097] The data transmission method provided in this embodiment sends a first indication message to the second communication terminal through a communication node, wherein the first indication message is used to instruct the second communication terminal to suspend or puncture part of the second data transmission, the first communication node uses the target time domain resource corresponding to the suspension or puncture part of the second data transmission of the second communication terminal as the target resource, performs idle channel assessment on the target resource, the first communication terminal and the second communication terminal meet the transmission multiplexing condition, and when the first communication terminal and the second communication terminal meet the transmission multiplexing condition, the transmission multiplexing of the first data of the first communication terminal and the second data of the second communication terminal is realized, thereby improving the utilization rate of the spectrum resources.

[0098] Figure 6 A schematic structural diagram of a first communication terminal provided in an embodiment. Figure 6 As shown, the first communication terminal provided in this embodiment includes the following modules: a CCA execution module 61 and a transmission module 62 .

[0099] The CCA execution module 61 is configured to perform clear channel assessment on the target resource.

[0100] The target resource is a target time domain resource corresponding to a portion of the second data transmission paused or punctured by the second communication terminal, and the first communication terminal and the second communication terminal meet the transmission multiplexing conditions.

[0101] The transmission module 62 is configured to transmit first data on the channel when it is determined that the channel is idle.

[0102] Optionally, the transmission multiplexing condition includes: the time domain resources corresponding to the COT of the first communication terminal overlap with the time domain resources corresponding to the COT of the second communication terminal.

[0103] Furthermore, the transmission multiplexing condition also includes: the frequency domain resources corresponding to the COT of the first communication terminal overlap with the frequency domain resources corresponding to the COT of the second communication terminal.

[0104] Optionally, the priority of the first data transmitted by the first communication terminal is higher than the priority of the second data transmitted by the second communication terminal.

[0105] Optionally, the third communication terminal cannot perform idle channel assessment on the target time domain resources. The third communication terminal is a communication terminal whose priority of transmitted data is not higher than the priority of the second data and whose occupied time-frequency domain resources overlap with the time-frequency domain resources corresponding to the COT of the second communication terminal.

[0106] Optionally, the target resource is a target time domain resource corresponding to a portion of the second data transmission paused or punctured by the second communication terminal according to a time domain resource rule. The time domain resource rule includes: the second communication terminal pausing or puncturing a portion of the second data transmission before the first communication terminal's transmission resource arrives, or, when the first communication terminal needs to transmit data on the transmission resource, the second communication terminal pausing or puncturing a portion of the second data transmission before the first communication terminal's transmission resource arrives.

[0107] Optionally, the transmission module 62 is specifically configured to: transmit the first data on the channel with enhanced transmission power.

[0108] Optionally, the time domain resources corresponding to the channel occupancy time COT of the first communication terminal overlap with the time domain resources corresponding to the COT of the second communication terminal, including: the time domain resources corresponding to the COT of the first communication terminal are located within the time domain resources corresponding to the COT of the second communication terminal, and only overlap with the time domain resources corresponding to the shared COT of the second communication terminal and / or the time domain resources corresponding after the shared COT.

[0109] The first communication terminal provided in this embodiment is used to implement Figure 2 The data transmission method of the illustrated embodiment and the implementation principle and technical effects of the first communication terminal provided in this embodiment are similar and will not be repeated here.

[0110] Figure 7 FIG. 1 is a schematic diagram of the structure of a second communication terminal provided by an embodiment. Figure 7 As shown, the second communication terminal provided in this embodiment includes the following modules: a pause or puncture transmission module 71.

[0111] The transmission pause or puncture module 71 is configured to pause or puncture part of the second data transmission.

[0112] Among them, the first communication terminal takes the target time domain resource corresponding to the second data transmission paused or punctured by the second communication terminal as the target resource, performs idle channel assessment on the target resource, and the first communication terminal and the second communication terminal meet the transmission multiplexing conditions.

[0113] Optionally, the transmission multiplexing condition includes: the time domain resources corresponding to the COT of the first communication terminal overlap with the time domain resources corresponding to the COT of the second communication terminal.

[0114] Furthermore, the transmission multiplexing condition also includes: the frequency domain resources corresponding to the COT of the first communication terminal overlap with the frequency domain resources corresponding to the COT of the second communication terminal.

[0115] Optionally, the priority of the first data transmitted by the first communication terminal is higher than the priority of the second data transmitted by the second communication terminal.

[0116] Optionally, the third communication terminal cannot perform idle channel assessment on the target time domain resources. The third communication terminal is a communication terminal whose priority of transmitted data is not higher than the priority of the second data and whose occupied time-frequency domain resources overlap with the time-frequency domain resources corresponding to the COT of the second communication terminal.

[0117] Optionally, the second communication terminal further includes: a first receiving module configured to receive first indication information sent by the communication node, wherein the first indication information is used to instruct the second communication terminal to pause or puncture part of the second data transmission.

[0118] Optionally, the second communication terminal further includes: a second receiving module configured to receive second instruction information sent by the communication node, wherein the second instruction information is used to instruct the second communication terminal to cancel data transmission on the channel through which the first communication terminal transmits the first data.

[0119] Optionally, the transmission pausing or puncturing module 71 is specifically configured to: suspend or puncture a portion of the second data transmission according to a time domain resource rule. The time domain resource rule includes: the second communication terminal pausing or puncturing a portion of the second data transmission before the first communication terminal's transmission resource arrives, or, when the first communication terminal needs to transmit data on the transmission resource, pausing or puncturing a portion of the second data transmission before the first communication terminal's transmission resource arrives.

[0120] Optionally, the second communication device further includes: a transmitting module configured to transmit the second data with reduced transmission power on the channel on which the first communication terminal sends the first data.

[0121] Optionally, the time domain resources corresponding to the channel occupation time (COT) of the first communication terminal overlap with the time domain resources corresponding to the COT of the second communication terminal, including: the time domain resources corresponding to the COT of the first communication terminal are located within the time domain resources corresponding to the COT of the second communication terminal, and overlap only with the time domain resources corresponding to the shared COT of the second communication terminal and / or the time domain resources corresponding to the period after the shared COT. Correspondingly, the first indication information is further used to instruct the second communication terminal to limit the scope of COT sharing.

[0122] The second communication terminal provided in this embodiment is used to implement Figure 4 The data transmission method of the illustrated embodiment and the implementation principle and technical effect of the second communication terminal provided in this embodiment are similar and will not be repeated here.

[0123] Figure 8 FIG. 1 is a schematic diagram of a communication node structure provided by an embodiment. Figure 8 As shown, the communication node provided in this embodiment includes the following modules: a sending module 81.

[0124] The sending module 81 is configured to send first indication information to the second communication terminal.

[0125] Among them, the first indication information is used to instruct the second communication terminal to suspend or puncture part of the second data transmission, the first communication node takes the target time domain resource corresponding to the suspension or puncture part of the second data transmission of the second communication terminal as the target resource, performs idle channel assessment on the target resource, and the first communication terminal and the second communication terminal meet the transmission multiplexing conditions.

[0126] Optionally, the transmission multiplexing condition includes: the time domain resources corresponding to the COT of the first communication terminal overlap with the time domain resources corresponding to the COT of the second communication terminal.

[0127] Furthermore, the transmission multiplexing condition also includes: the frequency domain resources corresponding to the COT of the first communication terminal overlap with the frequency domain resources corresponding to the COT of the second communication terminal.

[0128] Optionally, the priority of the first data transmitted by the first communication terminal is higher than the priority of the second data transmitted by the second communication terminal.

[0129] Optionally, the third communication terminal cannot perform idle channel assessment on the target time domain resources. The third communication terminal is a communication terminal whose priority of transmitted data is not higher than the priority of the second data and whose occupied time-frequency domain resources overlap with the time-frequency domain resources corresponding to the COT of the second communication terminal.

[0130] Optionally, the sending module 81 is further configured to send second instruction information to the second communication terminal, wherein the second instruction information is used to instruct the second communication terminal to cancel data transmission on the channel through which the first communication terminal transmits the first data.

[0131] Optionally, the sending module 81 is further configured to send third indication information to the third communication terminal. The third indication information is used to instruct the third communication terminal not to perform clear channel assessment on the target time domain resources. The third communication terminal is a communication terminal whose priority of transmitted data is not higher than that of the second data and whose occupied time-frequency domain resources overlap with the time-frequency domain resources corresponding to the COT of the second communication terminal.

[0132] The communication node provided in this embodiment is used to implement Figure 5 The data transmission method of the illustrated embodiment has similar implementation principles and technical effects of the communication nodes provided in this embodiment, and will not be described in detail here.

[0133] Figure 9 A schematic diagram of the structure of a data transmission device provided in an embodiment is shown in FIG. Figure 9 As shown, the data transmission device includes a processor 91. Optionally, it may also include a memory 92. The number of processors 91 in the data transmission device may be one or more. Figure 9 In the example of a processor 91, the processor 91 and the memory 92 in the data transmission device can be connected by bus or non-reserved mode. Figure 9 The bus connection is taken as an example.

[0134] The memory 92, as a computer-readable storage medium, can be used to store software programs, computer-executable programs, and modules, such as the program instructions / modules corresponding to the data transmission method in the embodiments of the present application (for example, the CCA execution module 61 and transmission module 62 in the first communication terminal, or the pause or puncture transmission module 71 in the second communication terminal, or the sending module 81 in the communication node). The processor 91 executes the software programs, instructions, and modules stored in the memory 92 to execute various functional applications and data processing of the data transmission device, thereby implementing the above-mentioned data transmission method.

[0135] The memory 92 may primarily include a program storage area and a data storage area. The program storage area may store an operating system and at least one application program required for a function; the data storage area may store data generated by the use of the data transmission device. Furthermore, the memory 92 may include high-speed random access memory and non-volatile memory, such as at least one disk storage device, a flash memory device, or a non-reserved non-volatile solid-state memory device.

[0136] An embodiment of the present application further provides a storage medium comprising computer-executable instructions, which, when executed by a computer processor, are used to execute the data transmission method provided by any embodiment of the present application.

[0137] The above description is merely an exemplary embodiment of the present application and is not intended to limit the scope of protection of the present application.

[0138] In general, various embodiments of the present application may be implemented in hardware or dedicated circuits, software, logic, or any combination thereof. For example, some aspects may be implemented in hardware, while other aspects may be implemented in firmware or software that can be executed by a controller, microprocessor, or other computing device, although the present application is not limited thereto.

[0139] Embodiments of the present application may be implemented by executing computer program instructions by a data processor of a mobile device, for example, in a processor entity, or by hardware, or by a combination of software and hardware. The computer program instructions may be assembly instructions, instruction set architecture (ISA) instructions, machine instructions, machine-dependent instructions, microcode, firmware instructions, state setting data, or source code or object code written in any combination of one or more programming languages.

[0140] The block diagram of any logical flow in the accompanying drawings of the present application can represent program steps, or can represent interconnected logical circuits, modules and functions, or can represent a combination of program steps and logical circuits, modules and functions. The computer program can be stored on a memory. The memory can have any type suitable for the local technical environment and can be implemented using any suitable data storage technology, such as but not limited to read-only memory (ROM), random access memory (RAM), optical memory device and system (digital versatile disc DVD or CD optical disc) etc. Computer-readable media can include non-transient storage media. The data processor can be any type suitable for the local technical environment, such as but not limited to a general-purpose computer, a special-purpose computer, a microprocessor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a programmable logic device (FPGA) and a processor based on a multi-core processor architecture.

[0141] The above description of exemplary embodiments of the present application has been provided by way of exemplary and non-limiting examples. However, various modifications and adaptations to the above embodiments will be apparent to those skilled in the art, when considered in conjunction with the accompanying drawings and claims, without departing from the scope of the present invention. Therefore, the proper scope of the present invention will be determined by reference to the claims.

Claims

1. A data transmission method, characterized in that: include: The first communication terminal performs an idle channel assessment on a target resource; wherein the target resource is a target time domain resource corresponding to a portion of the second data transmission suspended or punctured by the second communication terminal, the first communication terminal and the second communication terminal meet a transmission multiplexing condition, and the transmission multiplexing condition includes: a time domain resource corresponding to the channel occupancy time COT of the first communication terminal overlaps with a time domain resource corresponding to the COT of the second communication terminal, a third communication terminal cannot perform an idle channel assessment on the target time domain resource, and the third communication terminal is a communication terminal whose transmission data priority is not higher than the priority of the second data and whose occupied time-frequency domain resources overlap with the time-frequency domain resources corresponding to the COT of the second communication terminal; When it is determined that the channel is idle, the first communication terminal transmits first data on the channel.

2. The method according to claim 1, characterized in that The transmission multiplexing conditions also include: The frequency domain resources corresponding to the COT of the first communication terminal overlap with the frequency domain resources corresponding to the COT of the second communication terminal.

3. The method according to claim 1 or 2, characterized in that The priority of the first data transmitted by the first communication terminal is higher than the priority of the second data transmitted by the second communication terminal.

4. The method according to claim 1 or 2, characterized in that The target resource is a target time domain resource corresponding to a portion of the second data transmission that is paused or punctured by the second communication terminal according to the time domain resource rule; Among them, the time domain resource rules include: the second communication terminal suspends or punches part of the second data transmission before the transmission resources of the first communication terminal arrive, or, when the first communication terminal needs to transmit data on the transmission resources, the second communication terminal suspends or punches part of the second data transmission before the transmission resources of the first communication terminal arrive.

5. The method according to claim 4, characterized in that The first communication terminal transmitting first data on the channel includes: The first communication terminal transmits the first data on the channel with enhanced transmission power.

6. The method according to claim 1 or 2, characterized in that The time domain resources corresponding to the channel occupancy time COT of the first communication terminal overlap with the time domain resources corresponding to the COT of the second communication terminal, including: The time domain resources corresponding to the COT of the first communication terminal are located within the time domain resources corresponding to the COT of the second communication terminal, and only overlap with the time domain resources corresponding to the shared COT of the second communication terminal and / or the time domain resources corresponding after the shared COT.

7. A data transmission method, characterized in that: include: The second communication terminal suspends or punctures part of the second data transmission; wherein, the first communication terminal takes the target time domain resource corresponding to the part of the second data transmission suspended or punctured by the second communication terminal as the target resource, and performs idle channel assessment on the target resource. The first communication terminal and the second communication terminal meet the transmission multiplexing condition, and the transmission multiplexing condition includes: the time domain resource corresponding to the channel occupancy time COT of the first communication terminal overlaps with the time domain resource corresponding to the COT of the second communication terminal, and the third communication terminal cannot perform idle channel assessment on the target time domain resource. The third communication terminal is a communication terminal whose priority of transmitted data is not higher than that of the second data and whose occupied time-frequency domain resources overlap with the time-frequency domain resources corresponding to the COT of the second communication terminal.

8. The method according to claim 7, characterized in that The transmission multiplexing conditions also include: The frequency domain resources corresponding to the COT of the first communication terminal overlap with the frequency domain resources corresponding to the COT of the second communication terminal.

9. The method according to claim 7 or 8, characterized in that The priority of the first data transmitted by the first communication terminal is higher than the priority of the second data transmitted by the second communication terminal.

10. The method according to claim 7 or 8, characterized in that Before the second communication terminal suspends or punctures part of the second data transmission, the method further includes: The second communication terminal receives first indication information sent by the communication node; wherein the first indication information is used to instruct the second communication terminal to suspend or puncture part of the second data transmission.

11. The method according to claim 7 or 8, characterized in that Before the second communication terminal suspends or punctures part of the second data transmission, the method further includes: The second communication terminal receives second indication information sent by the communication node; wherein the second indication information is used to instruct the second communication terminal to cancel data transmission on the channel where the first communication terminal transmits first data.

12. The method according to claim 7 or 8, characterized in that The second communication terminal pausing or puncturing part of the second data transmission includes: The second communication terminal suspends or punctures part of the second data transmission according to the time domain resource rule; Among them, the time domain resource rules include: the second communication terminal suspends or punches part of the second data transmission before the transmission resources of the first communication terminal arrive, or, when the first communication terminal needs to transmit data on the transmission resources, the second communication terminal suspends or punches part of the second data transmission before the transmission resources of the first communication terminal arrive.

13. The method according to claim 12, characterized in that After the second communication terminal suspends or punctures part of the second data transmission, the method further includes: The second communication terminal transmits the second data with reduced transmission power on the channel on which the first communication terminal transmits the first data.

14. The method according to claim 10, characterized in that The time domain resources corresponding to the channel occupancy time COT of the first communication terminal overlap with the time domain resources corresponding to the COT of the second communication terminal, including: The time domain resources corresponding to the COT of the first communication terminal are located within the time domain resources corresponding to the COT of the second communication terminal, and only overlap with the time domain resources corresponding to the shared COT of the second communication terminal and / or the time domain resources corresponding to the shared COT; Correspondingly, the first indication information is also used to instruct the second communication terminal to limit the scope of COT sharing.

15. A data transmission method, characterized in that: include: The communication node sends first indication information to the second communication terminal; wherein the first indication information is used to instruct the second communication terminal to suspend or puncture part of the second data transmission, the first communication terminal uses the target time domain resource corresponding to the second communication terminal pausing or puncturing the part of the second data transmission as the target resource, performs idle channel assessment on the target resource, and the first communication terminal and the second communication terminal meet a transmission multiplexing condition, the transmission multiplexing condition including: the time domain resource corresponding to the channel occupancy time COT of the first communication terminal overlaps with the time domain resource corresponding to the COT of the second communication terminal; The method further comprises: The communication node sends third indication information to the third communication terminal, wherein the third indication information is used to indicate that the third communication terminal cannot perform idle channel assessment on the target time domain resources, and the third communication terminal is a communication terminal whose priority of transmitted data is not higher than the priority of the second data and whose occupied time-frequency domain resources overlap with the time-frequency domain resources corresponding to the COT of the second communication terminal.

16. The method according to claim 15, characterized in that The transmission multiplexing conditions also include: The frequency domain resources corresponding to the COT of the first communication terminal overlap with the frequency domain resources corresponding to the COT of the second communication terminal.

17. The method according to claim 15 or 16, characterized in that The priority of the first data transmitted by the first communication terminal is higher than the priority of the second data transmitted by the second communication terminal.

18. The method according to claim 15 or 16, characterized in that The method further comprises: The communication node sends second indication information to the second communication terminal, wherein the second indication information is used to instruct the second communication terminal to cancel data transmission on the channel where the first communication terminal transmits first data.

19. A data transmission device, characterized in that: include: A processor, wherein the processor is configured to implement the data transmission method according to any one of claims 1 to 18 when executing a computer program.

20. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, the data transmission method according to any one of claims 1 to 18 is implemented.

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