Transmission method and device, terminal and readable storage medium

Abstract

The invention discloses a transmission method and device, a terminal and a readable storage medium, and belongs to the technical field of communication. The transmission method of the embodiment of the invention comprises the following steps: in a target time unit, under the condition that the terminal is configured with an SBFD, sending the SBFD to the terminal; and the terminal determines a target transmission behavior or transmission power of the terminal in the target time unit according to a frequency domain interval between downlink transmission and uplink transmission.

Description

Technical Field

[0001] The present application belongs to the field of communication technology, and specifically relates to a transmission method, device, terminal and readable storage medium. Background Art

[0002] When the terminal works in full-duplex mode, the terminal can perform uplink transmission at different frequency domain positions while receiving downlink transmission sent by the base station. When the terminal receives downlink transmission sent by the base station, it will be interfered by the signal from the terminal's own uplink transmission. Therefore, it is necessary to set a certain guard band (GB) at both ends of the terminal to isolate the receiving and transmitting signals. In the guard band, the terminal neither performs downlink transmission nor uplink transmission. Using the guard band method to isolate the frequency domain will lead to a decrease in resource utilization. Summary of the invention

[0003] The embodiments of the present application provide a transmission method, an apparatus, a terminal and a readable storage medium, which can solve the problem in the related art that when the terminal works in full-duplex mode, frequency domain isolation is performed by setting a protection band, which leads to a reduction in resource utilization.

[0004] In a first aspect, a transmission method is provided, which is performed by a terminal, and the method includes:

[0005] In a target time unit, when the terminal is configured with sub-band full-duplex SBFD, the terminal determines a target transmission behavior or transmission power of the terminal in the target time unit according to a frequency domain interval between downlink transmission and uplink transmission.

[0006] In a second aspect, a transmission device is provided, which is applied to a terminal, and the device includes:

[0007] The determination module is used to determine the target transmission behavior or transmission power of the terminal in the target time unit according to the frequency domain interval between downlink transmission and uplink transmission when the terminal is configured with SBFD.

[0008] In a third aspect, a terminal is provided, comprising a processor and a memory, wherein the memory stores a program or instruction that can be executed on the processor, and when the program or instruction is executed by the processor, the steps of the method described in the first aspect are implemented.

[0009] In a fourth aspect, a terminal is provided, comprising a processor and a communication interface, wherein the processor is used to determine, in a target time unit, a target transmission behavior or transmission power of the terminal in the target time unit according to a frequency domain interval between downlink transmission and uplink transmission when the terminal is configured with SBFD.

[0010] In a fifth aspect, a readable storage medium is provided, on which a program or instruction is stored. When the program or instruction is executed by a processor, the steps of the method described in the first aspect are implemented.

[0011] In a sixth aspect, a wireless communication system is provided, including: a terminal and a network side device, wherein the terminal can be used to execute the steps of the method described in the first aspect.

[0012] In a seventh aspect, a chip is provided, comprising a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run a program or instruction to implement the method described in the first aspect.

[0013] In an eighth aspect, a computer program / program product is provided, wherein the computer program / program product is stored in a storage medium, and the program / program product is executed by at least one processor to implement the steps of the method described in the first aspect.

[0014] In an embodiment of the present application, in a target time unit, when a terminal is configured with SBFD, the terminal can determine its target transmission behavior or transmission power within the target time unit according to the frequency domain interval between downlink transmission and uplink transmission, and can flexibly use the protection band for uplink and downlink transmission, thereby saving resource expenses and effectively improving the resource utilization of the terminal; by determining the target transmission behavior or transmission power of the terminal according to the frequency domain interval between downlink transmission and uplink transmission, it is possible to avoid the interference of the terminal's uplink and downlink transmission signals on its downlink transmission or uplink transmission, thereby improving the transmission performance of the terminal. In addition, by determining the transmission power of the terminal according to the frequency domain interval between downlink transmission and uplink transmission, it is possible to flexibly adjust the transmission power of the terminal, thereby improving the transmission performance of the terminal. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1a is a block diagram of a wireless communication system to which the embodiments of the present application can be applied;

[0016] Figure 1b It is a schematic diagram of a flexible duplex mode in the related art;

[0017] Figure 2 is a flow chart of a transmission method provided by an embodiment of the present application;

[0018] Figure 3 This is one of the scenario schematic diagrams of applying a transmission method provided by an embodiment of the present application;

[0019] Figure 4 This is a second schematic diagram of a scenario in which a transmission method provided by an embodiment of the present application is applied;

[0020] Figure 5 is a structural diagram of a transmission device provided in an embodiment of the present application;

[0021] Figure 6 is a structural diagram of a communication device provided in an embodiment of the present application;

[0022] Figure 7 It is a structural diagram of a terminal provided in an embodiment of the present application. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of this application.

[0024] The terms "first", "second", etc. of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way are interchangeable where appropriate, 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 generally of one type, 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 represents at least one of the connected objects. For example, "A or B" covers three schemes, namely, Scheme 1: including A but not including B; Scheme 2: including B but not including A; Scheme 3: including both A and B. The character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0025] The term "indication" in this application can be a direct indication (or explicit indication) or an indirect indication (or implicit indication). A direct indication can be understood as the sender explicitly informing the receiver of specific information, operations to be performed, or request results in the sent indication; an indirect indication can be understood as the receiver determining the corresponding information according to the indication sent by the sender, or making a judgment and determining the operation to be performed or the request result according to the judgment result.

[0026] It is worth noting that the technology described in the embodiments of the present application is not limited to the Long Term Evolution (LTE) / LTE-Advanced (LTE-A) system, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA) or other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described technology can be used for the systems and radio technologies mentioned above as well as for other systems and radio technologies. The following description describes a New Radio (NR) system for illustrative purposes, and NR terminology is used in most of the following descriptions, but these technologies can also be applied to systems other than NR systems, such as the 6th generation (6 th Generation, 6G) communication system.

[0027] Figure 1aA block diagram of a wireless communication system applicable to an embodiment of the present application is shown. The wireless communication system includes a terminal 11 and a network side device 12. Among them, the terminal 11 can be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer), a notebook computer, a personal digital assistant (Personal Digital Assistant, PDA), a handheld computer, a netbook, an ultra-mobile personal computer (Ultra-mobile Personal Computer, UMPC), a mobile Internet device (Mobile Internet Device, MID), an augmented reality (Augmented Reality, AR), a virtual reality (Virtual Reality, VR) device, a robot, a wearable device (Wearable Device), an aircraft (flight vehicle), a vehicle-mounted device (Vehicle User Equipment, VUE), a ship-mounted device, a pedestrian terminal (Pedestrian User Equipment, PUE), a smart home (home appliances with wireless communication functions, such as refrigerators, televisions, washing machines or furniture, etc.), a game console, a personal computer (Personal Computer, PC), a teller machine or a self-service machine and other terminal side devices. Wearable devices include: smart watches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, etc. Among them, the vehicle-mounted device can also be called a vehicle-mounted terminal, a vehicle-mounted controller, a vehicle-mounted module, a vehicle-mounted component, a vehicle-mounted chip or a vehicle-mounted unit, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiment of the present application. The network side device 12 may include an access network device or a core network device, wherein the access network device may also be referred to as a radio access network (Radio Access Network, RAN) device, a radio access network function or a radio access network unit. The access network device may include a base station, a wireless local area network (Wireless Local Area Network, WLAN) access point (Access Point, AS) or a wireless fidelity (Wireless Fidelity, WiFi) node, etc.Among them, the base station may be referred to as a Node B (NB), an evolved Node B (eNB), a next generation Node B (gNB), a New Radio Node B (NR Node B), an access point, a Relay Base Station (RBS), a Serving Base Station (SBS), a Base Transceiver Station (BTS), a radio base station, a radio transceiver, a Basic Service Set (BSS), an Extended Service Set (ESS), a Home Node B (HNB), a Home Evolved Node B, a Transmission Reception Point (TRP) or other appropriate terms in the field. 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 the present application, only the base station in the NR system is used as an example for introduction, and the specific type of the base station is not limited.

[0028] For better understanding, the relevant concepts and principles that may be involved in the embodiments of the present application are explained below.

[0029] In the related technology, when deploying traditional cellular networks, based on the available spectrum and service characteristics, frequency division duplex (FDD) or time division duplex (TDD) can be used. When FDD is used, uplink transmission and downlink transmission are located at different frequencies, and the two do not interfere with each other and can be carried out simultaneously. When TDD is used, uplink transmission and downlink transmission are located at the same frequency and are carried out in a staggered manner using time division. Both duplex methods have their own advantages and disadvantages.

[0030] In order to more flexibly utilize limited spectrum resources, dynamically match business needs, improve resource utilization efficiency, and the uplink coverage, delay and other performance of data transmission, a flexible duplex mode is proposed. A flexible duplex mode: non-overlapping full-duplex (SBFD) in the frequency domain on the network side. For example, at the same time, uplink transmission and downlink transmission can be carried out simultaneously at different frequency domain positions (for example, non-overlapping sub-band full duplex (non-overlapping sub-band full duplex). For simplicity, the present invention uses the abbreviation subband. It is worth noting that the subband in the present invention can be understood as a section of frequency domain resources, or a set of RBs, BWPs, etc.). To avoid interference between uplink and downlink, a certain guard band (Guard Band) can be reserved between the frequency domain positions (corresponding to duplex subbands) corresponding to different transmission directions; half-duplex on the terminal side, that is, consistent with TDD, at the same time, only uplink transmission or downlink transmission can be performed, and both cannot be performed at the same time. It can be understood that in this duplex mode, the uplink transmission and downlink transmission on the network side at the same time can only be for different terminals.

[0031] Please refer to Figure 1b , Figure 1b A schematic diagram of the flexible duplex mode is given. In a part of the downlink symbols, the network side semi-statically divides the frequency domain of a single carrier into three duplex subbands, where the two sides of the carrier are downlink duplex subbands and the center is uplink duplex subbands, to reduce interference to adjacent carriers. In the third time slot, UE1 and UE2 perform uplink transmission and downlink reception respectively. At this time, the terminal works in half-duplex mode.

[0032] When the terminal works in full-duplex mode, the terminal can perform uplink transmission at different frequency positions while receiving the downlink transmission sent by the base station. When receiving the downlink transmission sent by the base station, it will be interfered by the signal from the terminal's own uplink transmission. Therefore, it is necessary to set a certain guard band (GB) at both ends of the UE to isolate the transmission and reception. At this time, the terminal neither performs uplink transmission nor downlink reception in the guard band. The method of frequency domain isolation using the guard band will lead to a decrease in resource utilization. In addition, since the self-interference generated by the uplink transmission sent by the terminal when the terminal works in full-duplex mode may be related to various factors, in order to ensure the performance of the transmission, the network will reserve more resources for isolation of transmission and reception, resulting in a decrease in resource utilization. In this regard, the embodiment of the present application proposes a transmission method and related equipment that can apply the transmission method.

[0033] The transmission method and related equipment provided by the embodiments of the present application are described in detail below through some embodiments and their application scenarios in combination with the accompanying drawings.

[0034] Please refer to Figure 2 , Figure 2 1 is a flow chart of a transmission method provided in an embodiment of the present application, and the transmission method is applied to a terminal. Figure 2 As shown, the transmission method comprises the following steps:

[0035] Step 201: In a target time unit, when a terminal is configured with SBFD, the terminal determines a target transmission behavior or transmission power of the terminal in the target time unit according to a frequency domain interval between downlink transmission and uplink transmission.

[0036] Among them, the target time unit can be a frame, a subframe, a time slot, a sub-time slot, a symbol set, a symbol, etc., and the embodiment of the present application does not make specific limitations on this.

[0037] In the embodiment of the present application, the terminal is configured with SBFD, or the terminal is enabled with UE-side SBFD. In this case, the terminal can simultaneously perform downlink reception and uplink transmission in different frequencies. The terminal determines its target transmission behavior or transmission power in the target time unit according to the frequency domain interval between downlink transmission and uplink transmission.

[0038] Of course, the target transmission behavior of the terminal within the target time unit may also be other possible situations, which will be specifically described in subsequent embodiments and will not be listed in detail here.

[0039] Alternatively, when the terminal is configured with SBFD in the target time unit, the terminal may also determine the transmission power of the terminal in the target time unit according to the frequency domain interval between the downlink transmission and the uplink transmission. For example, the frequency domain interval between the downlink subband and the uplink subband configured by the terminal is gap 0 (gap0), and the corresponding maximum transmission power of the terminal is P0. If the frequency domain interval between the downlink transmission and the uplink transmission scheduled by the terminal in the target time unit is greater than gap0, the terminal may use a transmission power greater than P0 for uplink transmission, that is, the terminal can determine that its transmission power in the target time unit can be greater than P0, or if the frequency domain interval between the downlink transmission and the uplink transmission scheduled by the terminal in the target time unit is less than gap0, the terminal may use a transmission power less than P0 for uplink transmission, that is, the terminal can determine that its transmission power in the target time unit can be less than P0. In this way, the terminal can adjust its transmission power according to the frequency domain interval between the downlink transmission and the uplink transmission, so as to more effectively utilize the transmission resources.

[0040] Of course, the transmission power of the terminal may be determined in other possible situations, which will be described in detail in subsequent embodiments and will not be listed in detail here.

[0041] In the embodiment of the present application, in the target time unit, when the terminal is configured with SBFD, the terminal can determine its target transmission behavior or transmission power in the target time unit according to the frequency domain interval between the downlink transmission and the uplink transmission, and can flexibly use the protection band for uplink and downlink transmission, thereby saving resource expenses and effectively improving the resource utilization of the terminal; in addition, by determining the target transmission behavior or transmission power of the terminal according to the frequency domain interval between the downlink transmission and the uplink transmission, it is possible to avoid the interference of the terminal's uplink and downlink transmission signals on its downlink transmission or uplink transmission, thereby improving the transmission performance of the terminal. In addition, by determining the transmission power of the terminal according to the frequency domain interval between the downlink transmission and the uplink transmission, the transmission power can be flexibly adjusted, thereby improving the transmission performance of the terminal.

[0042] Optionally, in the embodiment of the present application, the downlink transmission and the uplink transmission satisfy a first condition, and the first condition includes at least one of the following:

[0043] The downlink transmission and the uplink transmission overlap in the time domain;

[0044] The time domain interval between the downlink transmission and the uplink transmission is less than a first preset duration;

[0045] The downlink transmission and the uplink transmission are located in the same time slot or the same sub-time slot.

[0046] That is, the downlink transmission and uplink transmission of the terminal satisfy at least one of the above items in the time domain.

[0047] Optionally, the downlink transmission and the uplink transmission satisfy a second condition, where the second condition includes at least one of the following:

[0048] The frequency domain interval between the downlink transmission and the uplink transmission is smaller than a preset frequency domain interval;

[0049] The downlink transmission frequency domain resource overlaps with a guard band corresponding to the SBFD;

[0050] The uplink transmission frequency domain resource overlaps with a guard band corresponding to the SBFD.

[0051] That is, the downlink transmission and uplink transmission of the terminal satisfy at least one of the above conditions in the frequency domain.

[0052] It should be noted that in the embodiment of the present application, within the target time unit, when the terminal is configured with SBFD, the downlink transmission and uplink transmission of the terminal may satisfy at least one of the above items in the time domain, and satisfy at least one of the above items in the frequency domain, so that the terminal can determine the target transmission behavior of the terminal within the target time unit according to the frequency domain interval between the downlink transmission and the uplink transmission. Wherein, based on the type, configuration or scheduling of the uplink transmission and / or downlink transmission of the terminal, the terminal may perform different target transmission behaviors.

[0053] Optionally, when the terminal is configured with semi-static downlink transmission and semi-static uplink transmission, and the downlink transmission and uplink transmission of the terminal meet the first condition and the second condition, the target transmission behavior includes at least one of the following:

[0054] canceling part or all of the uplink transmission or postponing the uplink transmission, and receiving the downlink transmission;

[0055] According to the transmission priorities respectively corresponding to the uplink transmission and the downlink transmission, execute a first transmission, abandon part or all of a second transmission or postpone the second transmission, the first transmission being the one with a higher transmission priority between the uplink transmission and the downlink transmission, and the second transmission being the one with a lower transmission priority between the uplink transmission and the downlink transmission;

[0056] Determining, according to the type of the uplink transmission, a transmission mode of the uplink transmission or the downlink transmission;

[0057] Determining, according to the type of the downlink transmission, a transmission mode of the uplink transmission or the downlink transmission;

[0058] The downlink transmission is received, the transmission power of the uplink transmission is reduced, and the uplink transmission is performed based on the reduced transmission power.

[0059] It should be noted that the semi-static downlink transmission configured by the above-mentioned terminal includes but is not limited to: Synchronization Signal and PBCH block (SSB), Semi-Persistent Scheduling (SPS), Channel State Information Reference Signal (CSI-RS); the semi-static uplink transmission configured by the terminal includes but is not limited to: Physical Uplink Shared Channel (PUSCH) with Configuration Grant (CG), Physical Uplink Control Channel (PUCCH), Sounding Reference Signal (SRS), Physical Random Access Channel (PRACH), msg APUSCH, msg 3PUSCH.

[0060] Among them, the downlink transmission and uplink transmission of the above-mentioned terminal satisfy the first condition, which may refer to satisfying at least one of the above-mentioned first conditions, such as the configured semi-static downlink transmission and the configured semi-static uplink transmission overlap in the time domain; the downlink transmission and uplink transmission of the above-mentioned terminal satisfy the second condition, which may refer to satisfying at least one of the above-mentioned second conditions, such as the frequency domain interval between the configured semi-static downlink transmission and the configured semi-static uplink transmission is less than the preset frequency domain interval. It should be noted that the downlink transmission and the uplink transmission may overlap in the frequency domain. If they overlap, the frequency domain interval between the two is a negative value, and the preset frequency domain interval is a non-negative value. The preset frequency domain interval may be indicated or configured by the base station or determined according to a predefined rule.

[0061] Exemplarily, the terminal is configured with semi-static downlink transmission and semi-static uplink transmission, wherein the downlink transmission and the uplink transmission overlap in the time domain, or the time domain interval between the downlink transmission and the uplink transmission is less than the first preset duration T1, or the downlink transmission and the uplink transmission are located in the same time slot or sub-time slot, and in at least one of the following cases:

[0062] The frequency domain interval between the downlink transmission and the uplink transmission is smaller than a preset frequency domain interval;

[0063] The downlink transmission frequency domain resource overlaps with a guard band corresponding to the SBFD;

[0064] The uplink transmission frequency domain resource overlaps with a guard band corresponding to the SBFD;

[0065] The terminal determines its target transmission behavior within the target time unit according to the frequency domain interval between the downlink transmission and the uplink transmission, and the target transmission behavior includes at least one of the following (1) to (6):

[0066] (1) cancel part or all of the uplink transmission or postpone the uplink transmission, and receive the downlink transmission.

[0067] (2) Cancel part or all of the downlink transmission or postpone the downlink transmission and perform the uplink transmission.

[0068] (3) Determine the corresponding transmission behavior according to the transmission priority corresponding to the uplink transmission or downlink transmission (for example, the physical layer priority, for example, a priority index of 1 indicates a high priority, and a priority index of 0 indicates a low priority); for example, if the transmission priority corresponding to the uplink transmission is higher than the transmission priority corresponding to the downlink transmission, or the transmission priority corresponding to the uplink transmission is a high priority, then perform the uplink transmission and abandon all or part of the downlink transmission; if the transmission priority corresponding to the uplink transmission is lower than the transmission priority corresponding to the downlink transmission, or the transmission priority corresponding to the uplink transmission is a low priority, then abandon all or part of the uplink transmission or postpone the uplink transmission and perform the downlink transmission.

[0069] (4) Determine the corresponding transmission behavior according to the type of uplink transmission and / or the type of downlink transmission; for example, if the downlink transmission is SSB or CSI-RS, perform downlink transmission, abandon all or part of the uplink transmission or postpone the uplink transmission; if the downlink transmission is not SSB or CSI-RS, abandon all or part of the downlink transmission or postpone the downlink transmission and perform uplink transmission; or if the uplink transmission is SRS or PRACH or msg A PUSCH or msg 3PUSCH, perform uplink transmission, cancel part or all of the downlink reception or postpone the downlink reception; if the uplink transmission is not SRS or PRACH or msg A PUSCH or msg3PUSCH, perform downlink reception, cancel part or all of the uplink transmission or postpone the uplink transmission.

[0070] (5) receiving downlink transmission, reducing the transmission power of uplink transmission, and performing uplink transmission based on the reduced transmission power. For example, the transmission power of uplink transmission is different, and the frequency domain interval between downlink transmission and uplink transmission that the terminal needs to meet is different. Exemplarily, the transmission power of uplink transmission and the frequency domain interval between downlink transmission and uplink transmission of the terminal satisfy a preset mapping relationship, and the preset mapping relationship may be as shown in the following table:

[0071] Uplink transmission power Frequency domain spacing between terminal downlink and uplink transmission P0 Gap0 P1 Gap1 P2 Gap2

[0072] The preset mapping relationship may be reported by the terminal to the base station, configured by the base station for the terminal, or predetermined by the protocol. The present invention does not limit this. The transmission power of the uplink transmission refers to the maximum transmission power of the terminal. In actual transmission, its transmission power may be less than or equal to this power.

[0073] For example, the frequency domain interval between the uplink and downlink transmissions is G1, where Gap0 <= G1 < Gap1. At this time, the terminal performs uplink transmission with the maximum transmission power P1, then the uplink transmission will bring relatively large self-interference to the downlink reception. If the terminal reduces the transmission power of the uplink transmission to P0, then the required frequency domain interval between the downlink transmission and the uplink transmission becomes smaller (such as Gap0 in the table), and then the terminal can perform uplink transmission based on the reduced transmission power (the maximum transmission power P0), and at the same time can also perform downlink reception, so as to ensure the transmission performance of the terminal.

[0074] Optionally, the reduced transmission power is the maximum power that enables the frequency domain interval between the downlink transmission and the uplink transmission of the terminal to meet the target frequency domain interval. The target frequency domain interval is the frequency domain interval that the terminal needs to meet between the downlink transmission and the uplink transmission under the reduced uplink transmission power. For example, the terminal can adjust the transmission power of the uplink transmission based on the above preset mapping relationship according to the frequency domain interval between the downlink transmission and the uplink transmission. For example, if the frequency domain interval between the downlink transmission and the uplink transmission is greater than or equal to Gap1 and less than Gap2, the terminal adjusts the transmission power of its uplink transmission to P1, so as to make the adjusted transmission power match the frequency domain interval between the downlink transmission and the uplink transmission. In this way, the terminal can flexibly adjust the transmission power of the uplink transmission, thus ensuring the transmission performance of the terminal.

[0075] Optionally, when the reduced transmission power is less than the first preset power, the terminal cancels the uplink transmission or postpones the uplink transmission. Wherein, the first preset power can be determined based on a predefined rule or configured by a higher layer.

[0076] (6) Depending on the implementation of the terminal. For example, if the terminal side needs to initiate a random access PRACH, the terminal gives priority to the transmission of the PRACH and does not receive the downlink transmission. If the terminal does not need to initiate the PRACH, the terminal can receive the downlink transmission; for another example, if the terminal side has CG data, it gives priority to the transmission of the CG. If not, the terminal can skip the CG transmission and receive the downlink transmission.

[0077] In an embodiment of the present application, the target transmission behavior may include at least one of the above items. Exemplarily, the terminal may determine the transmission behavior according to the type of the uplink transmission and the transmission priority corresponding to the uplink transmission. For example, if the uplink transmission is SRS and the transmission priority corresponding to the uplink transmission is low priority, the terminal may postpone the uplink transmission and perform downlink transmission.

[0078] It should be noted that, for the contents in (1) to (6) above, if two or more of them are mutually exclusive or contradictory, the target transmission behavior does not include these mutually exclusive or contradictory situations, that is, the terminal will not execute the mutually exclusive or contradictory solutions in the above content.

[0079] It should be noted that after determining the above target transmission behavior, the terminal can execute the target transmission behavior.

[0080] In an embodiment of the present application, when the terminal is configured with SBFD within the target time unit, for the case where the terminal is configured with semi-static downlink transmission and semi-static uplink transmission, when the downlink transmission and uplink transmission of the terminal meet at least one of the above-mentioned first conditions and at least one of the above-mentioned second conditions, the terminal can determine its transmission behavior within the target time unit according to the frequency domain interval between the downlink transmission and the uplink transmission, so that the terminal can flexibly adjust its transmission behavior, and can also avoid the interference of the terminal's uplink and downlink transmission signals on its uplink or downlink transmission, thereby improving the transmission performance of the terminal.

[0081] Optionally, the method further comprises at least one of the following:

[0082] In a case where the terminal cancels all uplink transmissions or all downlink transmissions, the terminal determines a downlink reception parameter or an uplink reception parameter according to non-SBFD;

[0083] When the terminal performs partial uplink transmission or partial downlink transmission, the terminal reduces uplink transmission or downlink transmission in part of the frequency domain until the frequency domain interval between the downlink transmission and uplink transmission of the terminal is greater than or equal to the preset frequency domain interval.

[0084] It should be noted that the downlink reception parameter may include a receiving antenna, a receiving beam, spatial information, transmission power, etc., and the uplink reception parameter may include a transmitting antenna, a transmitting beam, spatial information, transmission power, etc. Optionally, when the terminal cancels all uplink transmissions or all downlink transmissions, the terminal may also determine the downlink reception parameter or the uplink reception parameter according to SBFD.

[0085] In addition, in the above-mentioned target transmission behaviors, when the terminal performs partial uplink transmission or partial downlink transmission, the terminal reduces the uplink transmission or downlink transmission on part of the frequency domain until the frequency domain interval between the terminal's downlink transmission and uplink transmission is greater than or equal to the preset frequency domain interval.

[0086] Optionally, the terminal reduces uplink transmission or downlink transmission in part of the frequency domain until a frequency domain interval between downlink transmission and uplink transmission of the terminal is greater than or equal to the preset frequency domain interval, including:

[0087] The terminal reduces uplink transmission or downlink transmission in part of the frequency domain, and based on puncture or rate matching, makes the frequency domain interval between the terminal's downlink transmission and uplink transmission greater than or equal to the preset frequency domain interval.

[0088] It should be noted that for PUCCH or specific format PUCCH (such as PUCCH format 0 or PUCCH format 1 or PUCCH format 4), or for SRS or wideband SRS, the terminal cancels all uplink transmissions; for PUSCH, the terminal cancels part of the frequency domain transmissions.

[0089] In addition, in the above-mentioned target transmission behavior, the postponement of uplink transmission or postponement of downlink transmission may be to postpone the uplink transmission or downlink transmission to the same position (such as symbol and frequency domain resources) of the next available time unit (such as time slot or sub-time slot) (for example, configured as a TDD uplink time slot or symbol, or not configured with SBFD, or there is no downlink transmission, or the frequency domain interval between the downlink transmission and the uplink transmission meets the requirements) for transmission, or the transmission position of the postponed uplink transmission or downlink transmission may be determined according to a predefined rule.

[0090] Optionally, in an embodiment of the present application, when the terminal is configured with semi-static downlink transmission and dynamically scheduled for uplink transmission, and the downlink transmission and uplink transmission of the terminal meet the first condition and the second condition, or when the terminal is configured with semi-static uplink transmission and dynamically scheduled for downlink transmission, and the downlink transmission and uplink transmission of the terminal meet the first condition and the second condition, the target transmission behavior of the terminal includes at least one of the following:

[0091] Executing dynamically scheduled uplink transmission or downlink transmission, canceling part or all of semi-statically configured downlink transmission or uplink transmission, or postponing the semi-statically configured downlink transmission or uplink transmission;

[0092] In the case where the terminal is dynamically scheduled for downlink transmission, the downlink transmission is received, the transmission power of the uplink transmission is reduced, and the uplink transmission is performed based on the reduced transmission power.

[0093] It should be noted that the downlink transmission and uplink transmission of the above-mentioned terminal satisfy the first condition, which may mean that at least one of the above-mentioned first conditions is satisfied, for example, the configured semi-static downlink transmission and the dynamically scheduled uplink transmission overlap in the time domain, or the dynamically scheduled downlink transmission and the configured semi-static uplink transmission overlap in the time domain; the downlink transmission and uplink transmission of the above-mentioned terminal satisfy the second condition, which may mean that at least one of the above-mentioned second conditions is satisfied, for example, the frequency domain interval between the configured semi-static downlink transmission and the scheduled uplink transmission is smaller than the preset frequency domain interval, or the frequency domain interval between the scheduled downlink transmission and the configured semi-static uplink transmission is smaller than the preset frequency domain interval.

[0094] Exemplarily, the terminal is configured with semi-static downlink transmission (e.g., SSB, SPS, CSI-RS, SPS PDSCH) and is also dynamically scheduled for uplink transmission (e.g., PUSCH, PUCCH), or the terminal is configured with semi-static uplink transmission and is also dynamically scheduled for downlink transmission, wherein the downlink transmission and the uplink transmission overlap in the time domain, or the time domain interval between the downlink transmission and the uplink transmission is less than the first preset duration T1, or the downlink transmission and the uplink transmission are located in the same time slot or sub-time slot, and in at least one of the following cases:

[0095] The frequency domain interval between the downlink transmission and the uplink transmission is smaller than a preset frequency domain interval;

[0096] The downlink transmission frequency domain resource overlaps with a guard band corresponding to the SBFD;

[0097] The uplink transmission frequency domain resource overlaps with a guard band corresponding to the SBFD;

[0098] The terminal determines its target transmission behavior within the target time unit according to the frequency domain interval between the downlink transmission and the uplink transmission, and the target transmission behavior includes at least one of the following (1) and (2):

[0099] (1) Executing dynamically scheduled uplink transmission or downlink transmission, canceling part or all of semi-statically configured downlink transmission or uplink transmission, or postponing the semi-statically configured downlink transmission or uplink transmission.

[0100] Optionally, the time interval between the end position of the downlink control information (Downlink Control Information, DCI) corresponding to the dynamically scheduled uplink transmission or downlink transmission and the first target starting position is greater than or equal to a second preset duration, and the first target starting position includes at least one of the following:

[0101] The starting position of the semi-statically configured downlink transmission or uplink transmission;

[0102] a starting position of an overlapping portion between the semi-statically configured downlink transmission or uplink transmission and the dynamically scheduled uplink transmission or downlink transmission;

[0103] The earliest starting position of the downlink transmission starting position and the uplink transmission starting symbol.

[0104] In this way, by ensuring that the time interval between the end position of the DCI and the first target start position is greater than or equal to the second preset duration, the signal interference between the dynamic scheduling transmission and the semi-static configuration transmission is reduced or avoided, thereby ensuring the transmission performance of the terminal. The second preset duration may be determined based on a predefined rule (such as according to the terminal capability, subcarrier spacing, etc.) or may also be a network configuration.

[0105] Optionally, when the terminal cancels all uplink transmissions or all downlink transmissions, the terminal determines the downlink reception parameters or uplink reception parameters according to non-SBFD. The downlink reception parameters may include receiving antennas, receiving beams, spatial information, transmission power, etc., and the uplink reception parameters may include transmitting antennas, transmitting beams, spatial information, transmission power, etc. Optionally, when the terminal cancels all uplink transmissions or all downlink transmissions, the terminal may also determine the downlink reception parameters or uplink reception parameters according to SBFD.

[0106] Optionally, when the terminal performs partial uplink transmission or partial downlink transmission, the terminal reduces the uplink transmission or downlink transmission of part of the frequency domain until the frequency domain interval between the downlink transmission and the uplink transmission of the terminal is greater than or equal to the preset frequency domain interval. Under the preset frequency domain interval, the signals of the uplink transmission and the downlink transmission of the terminal will not interfere with each other, thereby ensuring the transmission performance of the terminal.

[0107] Optionally, when reducing uplink transmission or downlink transmission in part of the frequency domain, the terminal may make the frequency domain interval between the downlink transmission and uplink transmission of the terminal greater than or equal to the preset frequency domain interval based on puncturing or rate matching.

[0108] It should be noted that for PUCCH or specific format PUCCH (such as PUCCH format 0 or PUCCH format 1 or PUCCH format 4), or for SRS or wideband SRS, the terminal cancels all uplink transmissions; for PUSCH, the terminal cancels part of the frequency domain transmission. In addition, the above-mentioned postponement of uplink transmission or postponement of downlink transmission may be to postpone the uplink transmission or downlink transmission to the next available (for example, configured as a TDD uplink time slot or symbol, or not configured with SBFD, or no downlink transmission, or the frequency domain interval between the downlink transmission and the uplink transmission meets the requirements) time unit (such as a time slot or sub-time slot) The same position (such as symbol and frequency domain resources) for transmission, or it may also be to determine the transmission position of the postponed uplink transmission or downlink transmission according to a predefined rule.

[0109] (2) When the terminal is dynamically scheduled for downlink transmission, the terminal receives the downlink transmission, reduces the transmission power of the uplink transmission, and performs uplink transmission based on the reduced transmission power.

[0110] Optionally, the frequency domain interval between downlink transmission and uplink transmission that the terminal needs to meet is different due to the different transmission power of uplink transmission. For example, the terminal can adjust the frequency domain position of downlink transmission and / or uplink transmission according to the transmission power of uplink transmission, so as to match the frequency domain interval between downlink transmission and uplink transmission with the transmission power of uplink transmission. In this way, the terminal can adjust its transmission behavior more flexibly to ensure the transmission performance of the terminal.

[0111] Exemplarily, the transmission power of the uplink transmission and the frequency domain interval between the downlink transmission and the uplink transmission of the terminal may satisfy a preset mapping relationship, and the preset mapping relationship may refer to the above description.

[0112] Optionally, the reduced transmission power is the maximum power that makes the frequency domain interval between the downlink transmission and the uplink transmission of the terminal meet the target frequency domain interval, and the target frequency domain interval is the frequency domain interval between the downlink transmission and the uplink transmission that the terminal needs to meet under the reduced transmission power. For example, the terminal can adjust the transmission power of the terminal uplink transmission according to the frequency domain interval between the downlink transmission and the uplink transmission based on the above-mentioned preset mapping relationship, so as to match the adjusted transmission power with the frequency domain interval between the downlink transmission and the uplink transmission. In this way, the terminal can flexibly adjust the transmission power of the uplink transmission, thereby ensuring the transmission performance of the terminal.

[0113] Optionally, when the reduced transmission power is less than a first preset power, the terminal cancels the uplink transmission or postpones the uplink transmission. The first preset power may be determined based on a predefined rule or configured by a high level.

[0114] Among them, the postponement of uplink transmission can be to postpone the uplink transmission to the same position (such as symbol and frequency domain resources) of the next available time unit (such as time slot or sub-time slot) (for example, configured as a TDD uplink time slot or symbol, or not configured with SBFD, or there is no downlink transmission, or the frequency domain interval between the downlink transmission and the uplink transmission meets the requirements) for transmission, or it can also be to determine the transmission position of the postponed uplink transmission according to a predefined rule.

[0115] In the embodiment of the present application, when the terminal is scheduled for the first dynamic scheduling, and the terminal is also scheduled for the second dynamic scheduling after the first dynamic scheduling, and the downlink transmission and uplink transmission of the terminal meet the first condition and the second condition, the target transmission behavior includes at least one of the following:

[0116] Perform uplink transmission or downlink transmission according to the transmission corresponding to the second dynamic scheduling, and cancel part or all of the transmission corresponding to the first dynamic scheduling;

[0117] In a case where the transmission corresponding to the second dynamic scheduling is a downlink transmission, receiving the downlink transmission corresponding to the second dynamic scheduling, reducing the transmission power of the uplink transmission and performing the uplink transmission based on the reduced transmission power;

[0118] The first dynamic scheduling is that downlink transmission is dynamically scheduled, and the second dynamic scheduling is that uplink transmission is dynamically scheduled; or, the first dynamic scheduling is that uplink transmission is dynamically scheduled, and the second dynamic scheduling is that downlink transmission is dynamically scheduled.

[0119] It should be noted that the downlink transmission and uplink transmission of the terminal satisfy the first condition, which may mean that at least one of the above-mentioned first conditions is satisfied, for example, the dynamically scheduled downlink transmission and the dynamically scheduled uplink transmission overlap in the time domain; the downlink transmission and uplink transmission of the terminal satisfy the second condition, which may mean that at least one of the above-mentioned second conditions is satisfied, for example, the frequency domain interval between the dynamically scheduled downlink transmission and the dynamically scheduled uplink transmission is less than the preset frequency domain interval.

[0120] Exemplarily, after the terminal is dynamically scheduled for downlink transmission, it is also dynamically scheduled for uplink transmission, or after the terminal is dynamically scheduled for uplink transmission, it is also dynamically scheduled for downlink transmission, wherein the downlink transmission and the uplink transmission overlap in the time domain, or the time domain interval between the downlink transmission and the uplink transmission is less than the first preset duration T1, or the downlink transmission and the uplink transmission are located in the same time slot or sub-time slot, and in at least one of the following cases:

[0121] The frequency domain interval between the downlink transmission and the uplink transmission is smaller than a preset frequency domain interval;

[0122] The downlink transmission frequency domain resource overlaps with a guard band corresponding to the SBFD;

[0123] The uplink transmission frequency domain resource overlaps with a guard band corresponding to the SBFD;

[0124] The terminal determines its target transmission behavior within the target time unit according to the frequency domain interval between the downlink transmission and the uplink transmission, and the target transmission behavior includes at least one of the following (1) and (2):

[0125] (1) Performing uplink transmission or downlink transmission according to the transmission corresponding to the second dynamic scheduling, and canceling all or part of the transmission under the first dynamic scheduling.

[0126] The first dynamic scheduling is that downlink transmission is dynamically scheduled, and the second dynamic scheduling is that uplink transmission is dynamically scheduled; or the first dynamic scheduling is that uplink transmission is dynamically scheduled, and the second dynamic scheduling is that downlink transmission is dynamically scheduled. That is, the terminal cancels the transmission scheduled first and executes the transmission scheduled later.

[0127] Optionally, a time interval between an end position of the DCI corresponding to the second dynamic scheduling and a second target start position is greater than or equal to a third preset duration, and the second target start position includes at least one of the following:

[0128] a starting position of the transmission corresponding to the first dynamic scheduling;

[0129] a starting position of an overlap between a transmission corresponding to the first dynamic scheduling and a transmission corresponding to the second dynamic scheduling;

[0130] The earliest starting position between a starting position of the transmission corresponding to the first dynamic scheduling and a starting position of the transmission corresponding to the second dynamic scheduling.

[0131] In this way, by ensuring that the time interval between the end position of the DCI corresponding to the second dynamic scheduling and the start position of the transmission corresponding to the first dynamic scheduling is greater than or equal to the third preset duration, or, in the case where there is an overlapping part between the transmission of the first dynamic scheduling and the transmission of the second dynamic scheduling, ensuring that the time interval between the end position of the DCI corresponding to the second dynamic scheduling and the start position of the overlapping part is greater than or equal to the third preset duration, the signal interference between the first dynamic scheduling transmission and the second dynamic scheduling transmission is reduced to ensure the transmission performance of the terminal. The third preset duration can be determined based on a predefined rule or a network configuration.

[0132] Optionally, in this implementation mode, when the terminal cancels the previously scheduled transmission, the terminal determines the downlink reception parameter or the uplink reception parameter according to non-SBFD. Alternatively, the terminal may also determine the downlink reception parameter or the uplink reception parameter according to SBFD. The terminal may select a specific method to determine the downlink reception parameter or the uplink reception parameter, which may be pre-agreed or network configured.

[0133] In addition, under this implementation mode, if the terminal cancels part of the transmission under the first dynamic scheduling, that is, the terminal will perform part of the uplink transmission or part of the downlink transmission, the terminal reduces the uplink transmission or downlink transmission of part of the frequency domain until the frequency domain interval between the downlink transmission and the uplink transmission of the terminal is greater than or equal to the preset frequency domain interval. It can be understood that under the preset frequency domain interval, the signals of the uplink transmission and the downlink transmission of the terminal will not interfere with each other, thereby ensuring the transmission performance of the terminal.

[0134] It should be noted that the terminal cancels all or part of the transmission, which may be for PUCCH or a specific format PUCCH (such as PUCCH format 0 or PUCCH format 1 or PUCCH format 4), or for SRS or wideband SRS, the terminal cancels all uplink transmissions; for PUSCH, the terminal cancels part of the frequency domain transmission. Optionally, when reducing the uplink transmission or downlink transmission of part of the frequency domain, the terminal may make the frequency domain interval between the downlink transmission and the uplink transmission of the terminal greater than or equal to the preset frequency domain interval based on puncturing or rate matching.

[0135] (2) When the transmission corresponding to the second dynamic scheduling is a downlink transmission, the terminal receives the downlink transmission corresponding to the second dynamic scheduling, reduces the transmission power of the uplink transmission, and performs uplink transmission based on the reduced transmission power.

[0136] Optionally, the frequency domain interval between downlink transmission and uplink transmission that the terminal needs to meet is different due to the different transmission power of uplink transmission. For example, the terminal can adjust the frequency domain position of downlink transmission and / or uplink transmission according to the transmission power of uplink transmission, so as to match the frequency domain interval between downlink transmission and uplink transmission with the transmission power of uplink transmission. In this way, the terminal can adjust its transmission behavior more flexibly to ensure the transmission performance of the terminal.

[0137] The transmission power of the uplink transmission and the frequency domain interval between the downlink transmission and the uplink transmission of the terminal may satisfy a preset mapping relationship, and the preset mapping relationship may refer to the above description.

[0138] Optionally, the reduced transmission power is the maximum power that makes the frequency domain interval between the downlink transmission and the uplink transmission of the terminal meet the target frequency domain interval, and the target frequency domain interval is the frequency domain interval between the downlink transmission and the uplink transmission that the terminal needs to meet under the reduced transmission power. For example, the terminal can adjust the transmission power of the terminal uplink transmission according to the frequency domain interval between the downlink transmission and the uplink transmission based on the above-mentioned preset mapping relationship, so as to match the adjusted transmission power with the frequency domain interval between the downlink transmission and the uplink transmission. In this way, the terminal can flexibly adjust the transmission power of the uplink transmission, thereby ensuring the transmission performance of the terminal.

[0139] Optionally, when the reduced transmission power is less than a first preset power, the terminal cancels the uplink transmission or postpones the uplink transmission. The first preset power may be determined based on a predefined rule or configured by a high level.

[0140] The postponement of uplink transmission may be to postpone the uplink transmission to the same position (such as symbol and frequency domain resources) of the next available time unit (such as time slot or sub-time slot) for transmission, or the transmission position of the postponed uplink transmission may be determined according to a predefined rule.

[0141] In the implementation of the present application, in a target time unit, when a terminal is configured with SBFD, the terminal may also determine the transmission power of the terminal in the target time unit according to a frequency domain interval between downlink transmission and uplink transmission.

[0142] Optionally, the terminal determines, according to a frequency domain interval between downlink transmission and uplink transmission, a transmission power of the terminal in the target time unit, including:

[0143] Within the target time unit, the terminal determines the transmission power of the uplink transmission performed by the terminal within the target time unit according to a preset mapping relationship between the frequency domain interval between downlink transmission and uplink transmission and the uplink transmission power, and the frequency domain interval between the downlink transmission and the uplink transmission.

[0144] The preset mapping relationship may be a reference to the description in the previous embodiment. For example, when the frequency domain interval between downlink transmission and uplink transmission is greater than or equal to Gap0 and less than Gap1, the maximum transmission power of the terminal uplink transmission is P0, when the frequency domain interval between downlink transmission and uplink transmission is greater than Gap1 and less than or equal to Gap2, the maximum transmission power of the terminal uplink transmission is P1, and when the frequency domain interval between downlink transmission and uplink transmission is greater than Gap2, the maximum transmission power of the terminal uplink transmission is P2. It should be noted that the above-mentioned frequency domain intervals Gap0, Gap1, and Gap2 are in a relationship of increasing in sequence.

[0145] In the embodiment of the present application, the terminal can adjust the transmission power of the terminal uplink transmission based on the above preset mapping relationship and the frequency domain interval between the actually scheduled downlink transmission and uplink transmission, so that the adjusted transmission power matches the frequency domain interval between the downlink transmission and uplink transmission. In this way, the terminal can flexibly adjust the transmission power of the uplink transmission, thereby ensuring the transmission performance of the terminal.

[0146] For better understanding, the technical solution provided by the present application is described below through two specific implementations.

[0147] Implementation method 1:

[0148] Please refer to Figure 3 , the UE supports SBFD transmission, and in a certain time slot, the UE is configured with SBFD, where the spacing (guard band, GB) between the SBFD downlink (Downlink, DL) subband and the uplink (Uplink, UP) subband is Y (for example, the guard band can be directly configured or implicitly configured). In this time slot, the UE is configured with DL SPS PDSCH reception and UL CG PUSCH, and they overlap in the time domain. If the frequency domain spacing between SPS PDSCH and CG PUSCH is greater than or equal to Y, the UE can receive DL and send UL at the same time (such as Figure 3 If the frequency domain interval between SPS PDSCH and CG PUSCH is less than Y (as shown in a). Figure 3 As shown in b, c, and d, the frequency domain interval between PDSCH and PUSCH is X, where X < Y), then the UE can transmit in the following ways:

[0149] 1) If Figure 3 As shown in b, the UE does not send UL but receives DL SPS PDSCH;

[0150] 2) If Figure 3 As shown in c, the UE cancels UL transmission in part of the frequency domain and receives DL SPS PDSCH at the same time;

[0151] 3) If Figure 3 As shown in d, the UE reduces the CG PUSCH transmission power and sends CGPUSCH based on the reduced transmission power, while receiving DL SPS PDSCH. Under the corresponding power after the reduction, the DL subband and ULsuband required by the UE are not greater than X (for example, when the uplink maximum transmission power is 23dBm, Y is the minimum GB required by the UE's current capability to ensure sufficient isolation, or when the protection bandwidth is Y, the UE's maximum transmission power is 23dBm, such as Figure 3 As shown in a, when the maximum transmission power of the UE is 10 dBm, the DL subband and UL subband required by the UE are not greater than X or when the protection bandwidth is X, the maximum transmission power of the UE is, for example, 10 dBm).

[0152] Implementation method 2:

[0153] Please refer to Figure 4 , the UE supports SBFD transmission, and in a certain time slot n, the UE is configured with SBFD, where the interval between the SBFD DL subband and the UL subband is X (e.g. Figure 4 As shown in a, assuming that GB = M, the maximum transmit power corresponding to UL PUSCH is Y). In this time slot n, the UE is semi-statically configured or dynamically scheduled to receive DL PDSCH and UL PUSCH, and they overlap in the time domain. If the transmission power of PUSCH is less than or equal to M, the UE can receive DL and send UL at the same time. If the transmission power of PUSCH is greater than Y (for example, the determined PUSCH transmission power without considering the maximum power limit), the UE can transmit in the following manner:

[0154] 1) If Figure 4 As shown in b, the UE abandons all UL transmissions;

[0155] 2) If Figure 4 As shown in c, the UE adjusts the frequency range of UL transmission, or abandons part of the UL transmission, so that the frequency domain interval between the UL transmission and the DL transmission sent by the UE is greater than or equal to M;

[0156] 3) If Figure 4 As shown in (d), the UE reduces the UL transmission power to less than or equal to Y.

[0157] It can be understood that the specific implementation of the transmission method provided in the embodiment of the present application may also be other possible situations, and this application will not list them in detail.

[0158] The transmission method provided in the embodiment of the present application can be executed by a transmission device. In the embodiment of the present application, the transmission device provided in the embodiment of the present application is described by taking the transmission method executed by the transmission device as an example.

[0159] Please refer to Figure 5 , Figure 5 It is a structural diagram of a transmission device provided in an embodiment of the present application, and the device is applied to a terminal.

[0160] like Figure 5 As shown, the transmission device 500 includes:

[0161] The determination module 501 is used to determine, in a target time unit, a target transmission behavior or transmission power of the terminal in the target time unit according to a frequency domain interval between downlink transmission and uplink transmission when the terminal is configured with SBFD.

[0162] Optionally, the downlink transmission and the uplink transmission satisfy a first condition, and the first condition includes at least one of the following:

[0163] The downlink transmission and the uplink transmission overlap in the time domain;

[0164] The time domain interval between the downlink transmission and the uplink transmission is less than a first preset duration;

[0165] The downlink transmission and the uplink transmission are located in the same time slot or the same sub-time slot.

[0166] Optionally, the downlink transmission and the uplink transmission satisfy a second condition, where the second condition includes at least one of the following:

[0167] The frequency domain interval between the downlink transmission and the uplink transmission is smaller than a preset frequency domain interval;

[0168] The downlink transmission frequency domain resource overlaps with a guard band corresponding to the SBFD;

[0169] The uplink transmission frequency domain resource overlaps with a guard band corresponding to the SBFD.

[0170] Optionally, when the terminal is configured with semi-static downlink transmission and semi-static uplink transmission, and the downlink transmission and uplink transmission of the terminal meet the first condition and the second condition,

[0171] The target transmission behavior includes at least one of the following:

[0172] canceling part or all of the uplink transmission or postponing the uplink transmission, and receiving the downlink transmission;

[0173] cancel part or all of the downlink transmission or postpone the downlink transmission, and perform the uplink transmission;

[0174] According to the transmission priorities respectively corresponding to the uplink transmission and the downlink transmission, execute a first transmission, abandon part or all of a second transmission or postpone the second transmission, the first transmission being the one with a higher transmission priority between the uplink transmission and the downlink transmission, and the second transmission being the one with a lower transmission priority between the uplink transmission and the downlink transmission;

[0175] Determining, according to the type of the uplink transmission, a transmission mode of the uplink transmission or the downlink transmission;

[0176] Determining, according to the type of the downlink transmission, a transmission mode of the uplink transmission or the downlink transmission;

[0177] The downlink transmission is received, the transmission power of the uplink transmission is reduced, and the uplink transmission is performed based on the reduced transmission power.

[0178] Optionally, when the terminal is configured with semi-static downlink transmission and dynamically scheduled uplink transmission, and the downlink transmission and uplink transmission of the terminal meet the first condition and the second condition, or when the terminal is configured with semi-static uplink transmission and dynamically scheduled downlink transmission, and the downlink transmission and uplink transmission of the terminal meet the first condition and the second condition,

[0179] The target transmission behavior includes at least one of the following:

[0180] Executing dynamically scheduled uplink transmission or downlink transmission, canceling part or all of semi-statically configured downlink transmission or uplink transmission, or postponing the semi-statically configured downlink transmission or uplink transmission;

[0181] In the case where the terminal is dynamically scheduled for downlink transmission, the downlink transmission is received, the transmission power of the uplink transmission is reduced, and the uplink transmission is performed based on the reduced transmission power.

[0182] Optionally, when the target transmission behavior includes executing dynamically scheduled uplink transmission or downlink transmission, canceling part or all of the semi-statically configured downlink transmission or uplink transmission, or postponing the semi-statically configured downlink transmission or uplink transmission, the time interval between the end position of the downlink control information DCI corresponding to the dynamically scheduled uplink transmission or downlink transmission and the first target starting position is greater than or equal to the second preset duration, and the first target starting position includes at least one of the following:

[0183] The starting position of the semi-statically configured downlink transmission or uplink transmission;

[0184] a starting position of an overlapping portion between the semi-statically configured downlink transmission or uplink transmission and the dynamically scheduled uplink transmission or downlink transmission;

[0185] The earliest starting position of the downlink transmission starting position and the uplink transmission starting symbol.

[0186] Optionally, when the terminal is scheduled for a first dynamic scheduling, and the terminal is also scheduled for a second dynamic scheduling after the first dynamic scheduling, and downlink transmission and uplink transmission of the terminal meet the first condition and the second condition,

[0187] The target transmission behavior includes at least one of the following:

[0188] Perform uplink transmission or downlink transmission according to the transmission corresponding to the second dynamic scheduling, and cancel part or all of the first dynamic scheduling transmission;

[0189] In a case where the transmission corresponding to the second dynamic scheduling is a downlink transmission, receiving the downlink transmission corresponding to the second dynamic scheduling, reducing the transmission power of the uplink transmission and performing the uplink transmission based on the reduced transmission power;

[0190] The first dynamic scheduling is that downlink transmission is dynamically scheduled, and the second dynamic scheduling is that uplink transmission is dynamically scheduled; or the first dynamic scheduling is that uplink transmission is dynamically scheduled, and the second dynamic scheduling is that downlink transmission is dynamically scheduled.

[0191] Optionally, the first dynamic scheduling and the second dynamic scheduling correspond to different transmission priorities respectively.

[0192] Optionally, when uplink transmission or downlink transmission is performed according to the second dynamic scheduling and part or all of the first dynamic scheduled transmission is canceled, the time interval between the end position of the DCI corresponding to the second dynamic scheduling and the second target starting position is greater than or equal to a third preset duration, and the second target starting position includes at least one of the following:

[0193] a starting position of the transmission corresponding to the first dynamic scheduling;

[0194] a starting position of an overlap between a transmission corresponding to the first dynamic scheduling and a transmission corresponding to the second dynamic scheduling;

[0195] The earliest starting position between a starting position of the transmission corresponding to the first dynamic scheduling and a starting position of the transmission corresponding to the second dynamic scheduling.

[0196] Optionally, the reduced transmission power is the maximum power that makes the frequency domain interval between the downlink transmission and uplink transmission of the terminal meet the target frequency domain interval, and the target frequency domain interval is the frequency domain interval between the downlink transmission and uplink transmission that the terminal needs to meet under the reduced transmission power.

[0197] Optionally, the device further comprises:

[0198] The first execution module is used to cancel the uplink transmission or postpone the uplink transmission when the reduced transmission power is less than the first preset power.

[0199] Optionally, the device further includes a second execution module, configured to execute at least one of the following:

[0200] In a case where the terminal cancels all uplink transmissions or all downlink transmissions, determining a downlink reception parameter or an uplink reception parameter according to non-SBFD;

[0201] When the terminal performs partial uplink transmission or partial downlink transmission, the uplink transmission or downlink transmission in part of the frequency domain is reduced until the frequency domain interval between the downlink transmission and the uplink transmission of the terminal is greater than or equal to the preset frequency domain interval.

[0202] Optionally, the second execution module is further used for:

[0203] Reduce uplink transmission or downlink transmission in part of the frequency domain, and make the frequency domain interval between the downlink transmission and uplink transmission of the terminal greater than or equal to the preset frequency domain interval based on puncturing or rate matching.

[0204] Optionally, the determining module 501 is further configured to:

[0205] In the target time unit, the transmission power of the terminal for uplink transmission in the target time unit is determined according to a preset mapping relationship between the frequency domain interval between downlink transmission and uplink transmission and the uplink transmission power, and the frequency domain interval between the downlink transmission and the uplink transmission.

[0206] Optionally, the transmission power of the uplink transmission is different, and the frequency domain interval between the downlink transmission and the uplink transmission that the terminal needs to meet is different.

[0207] In an embodiment of the present application, in a target time unit, when the terminal is configured with SBFD, the device can determine its target transmission behavior or transmission power within the target time unit according to the frequency domain interval between downlink transmission and uplink transmission, and can flexibly use the protection band for uplink and downlink transmission, thereby saving resource expenses and effectively improving the resource utilization of the terminal; by determining the target transmission behavior or transmission power of the terminal according to the frequency domain interval between downlink transmission and uplink transmission, it is possible to avoid the interference of the terminal's uplink and downlink transmission signals on its downlink transmission or uplink transmission, thereby improving the transmission performance of the terminal. In addition, by determining the transmission power of the terminal according to the frequency domain interval between downlink transmission and uplink transmission, it is possible to flexibly adjust the transmission power, thereby improving the transmission performance of the terminal.

[0208] The transmission device in the embodiment 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 may be other devices other than a terminal. For example, the terminal may include but is not limited to the types of terminals 11 listed above, and other devices may be servers, network attached storage (NAS), etc., which are not specifically limited in the embodiment of the present application.

[0209] The transmission device provided in the embodiment of the present application can achieve Figure 2 The various processes implemented by the terminal in the method embodiment achieve the same technical effect, and to avoid repetition, they will not be described here.

[0210] like Figure 6 As shown, an embodiment of the present application also provides a communication device 600, including a processor 601 and a memory 602, and the memory 602 stores programs or instructions that can be executed on the processor 601. For example, when the communication device 600 is a terminal, the program or instruction is executed by the processor 601 to implement the various steps of the above-mentioned transmission method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0211] The embodiment of the present application also provides a terminal, including a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run a program or instruction to implement the following Figure 2 The steps in the method embodiment shown. This terminal embodiment corresponds to the above-mentioned terminal side method embodiment, and each implementation process and implementation method of the above-mentioned method embodiment can be applied to this terminal embodiment and can achieve the same technical effect. Specifically, Figure 7 A schematic diagram of the hardware structure of a terminal for implementing an embodiment of the present application.

[0212] The terminal 700 includes but is not limited to: a radio frequency unit 701, a network module 702, an audio output unit 703, an input unit 704, a sensor 705, a display unit 706, a user input unit 707, an interface unit 708, a memory 709 and at least some of the components of a processor 710.

[0213] Those skilled in the art will appreciate that the terminal 700 may also include a power source (such as a battery) for supplying power to various components, and the power source may be logically connected to the processor 710 through a power management system, thereby implementing functions such as managing charging, discharging, and power consumption management through the power management system. Figure 7 The terminal structure shown in the figure does not constitute a limitation on the terminal. The terminal may include more or fewer components than shown in the figure, or combine certain components, or arrange the components differently, which will not be described in detail here.

[0214] It should be understood that in the embodiment of the present application, the input unit 704 may include a graphics processing unit (GPU) 7041 and a microphone 7042, and the graphics processor 7041 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 706 may include a display panel 7061, and the display panel 7061 may be configured in the form of a liquid crystal display, an organic light emitting diode, etc. The user input unit 707 includes a touch panel 7071 and at least one of other input devices 7072. The touch panel 7071 is also called a touch screen. The touch panel 7071 may include two parts: a touch detection device and a touch controller. Other input devices 7072 may include, but are not limited to, a physical keyboard, function keys (such as a volume control button, a switch button, etc.), a trackball, a mouse, and a joystick, which will not be repeated here.

[0215] In the embodiment of the present application, after receiving downlink data from the network side device, the RF unit 701 can transmit the data to the processor 710 for processing; in addition, the RF unit 701 can send uplink data to the network side device. Generally, the RF unit 701 includes but is not limited to an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, etc.

[0216] The memory 709 can be used to store software programs or instructions and various data. The memory 709 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data, wherein the first storage area may store an operating system, an application program or instruction required for at least one function (such as a sound playback function, an image playback function, etc.), etc. In addition, the memory 709 may include a volatile memory or a non-volatile memory. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), a static random access memory (SRAM), a dynamic random access memory (DRAM), a synchronous dynamic random access memory (SDRAM), a double data rate synchronous dynamic random access memory (DDRSDRAM), an enhanced synchronous dynamic random access memory (ESDRAM), a synchronous link dynamic random access memory (SLDRAM) and a direct memory bus random access memory (DRRAM). The memory 709 in the embodiment of the present application includes but is not limited to these and any other suitable types of memory.

[0217] The processor 710 may include one or more processing units; optionally, the processor 710 integrates an application processor and a modem processor, wherein the application processor mainly processes operations related to an operating system, a user interface, and application programs, and the modem processor mainly processes wireless communication signals, such as a baseband processor. It is understandable that the modem processor may not be integrated into the processor 710.

[0218] The processor 710 is used for:

[0219] In a target time unit, when the terminal is configured with SBFD, the terminal determines a target transmission behavior or transmission power of the terminal in the target time unit according to a frequency domain interval between downlink transmission and uplink transmission.

[0220] In the embodiment of the present application, in the target time unit, when the terminal is configured with SBFD, the terminal can determine its target transmission behavior or transmission power within the target time unit according to the frequency domain interval between the downlink transmission and the uplink transmission, and can flexibly use the protection band for uplink and downlink transmission, thereby saving resource expenses and effectively improving the resource utilization of the terminal; by determining the target transmission behavior or transmission power of the terminal according to the frequency domain interval between the downlink transmission and the uplink transmission, it is possible to avoid the interference of the terminal's uplink and downlink transmission signals on its downlink transmission or uplink transmission, thereby improving the transmission performance of the terminal. In addition, by determining the transmission power of the terminal according to the frequency domain interval between the downlink transmission and the uplink transmission, the transmission power can be flexibly adjusted, thereby improving the transmission performance of the terminal.

[0221] It can be understood that the terminal in this embodiment can implement the above Figure 2 All technical processes in the method embodiments can achieve the same or corresponding technical effects, and will not be described again here to avoid repetition.

[0222] An embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, the various processes of the above-mentioned transmission method embodiment are implemented and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0223] The processor is the processor in the terminal described in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a computer read-only memory ROM, a random access memory RAM, a magnetic disk or an optical disk. In some examples, the readable storage medium may be a non-transient readable storage medium.

[0224] An embodiment of the present application further provides a chip, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the various processes of the above-mentioned transmission method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0225] It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0226] The embodiments of the present application further provide a computer program / program product, which is stored in a storage medium and is executed by at least one processor to implement the various processes of the above-mentioned transmission method embodiment and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0227] An embodiment of the present application also provides a communication system, including: a terminal and a network side device, wherein the terminal can be used to execute the steps of the transmission method as described above, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0228] It should be noted that, in this article, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises one..." does not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the method and device in the embodiment of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0229] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of 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, disk, CD, etc.), including several instructions to enable a terminal or a network-side device to execute the methods described in each embodiment of the present application.

[0230] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms of implementation methods without departing from the purpose of the present application and the scope of protection of the claims, and these implementation methods are all within the protection of the present application.

Claims

1. A transmission method, characterized in that: include: In a target time unit, when the terminal is configured with sub-band full-duplex SBFD, the terminal determines a target transmission behavior or transmission power of the terminal in the target time unit according to a frequency domain interval between downlink transmission and uplink transmission.

2. The method according to claim 1, characterized in that The downlink transmission and the uplink transmission satisfy a first condition, wherein the first condition includes at least one of the following: The downlink transmission and the uplink transmission overlap in the time domain; The time domain interval between the downlink transmission and the uplink transmission is less than a first preset duration; The downlink transmission and the uplink transmission are located in the same time slot or the same sub-time slot.

3. The method according to claim 2, characterized in that The downlink transmission and the uplink transmission satisfy a second condition, where the second condition includes at least one of the following: The frequency domain interval between the downlink transmission and the uplink transmission is smaller than a preset frequency domain interval; The downlink transmission frequency domain resource overlaps with a guard band corresponding to the SBFD; The uplink transmission frequency domain resource overlaps with a guard band corresponding to the SBFD.

4. The method according to claim 3, characterized in that When the terminal is configured with semi-static downlink transmission and semi-static uplink transmission, and the downlink transmission and uplink transmission of the terminal meet the first condition and the second condition, The target transmission behavior includes at least one of the following: canceling part or all of the uplink transmission or postponing the uplink transmission, and receiving the downlink transmission; cancel part or all of the downlink transmission or postpone the downlink transmission, and perform the uplink transmission; According to the transmission priorities respectively corresponding to the uplink transmission and the downlink transmission, execute a first transmission, abandon part or all of a second transmission or postpone the second transmission, the first transmission being the one with a higher transmission priority between the uplink transmission and the downlink transmission, and the second transmission being the one with a lower transmission priority between the uplink transmission and the downlink transmission; Determining, according to the type of the uplink transmission, a transmission mode of the uplink transmission or the downlink transmission; Determining, according to the type of the downlink transmission, a transmission mode of the uplink transmission or the downlink transmission; The downlink transmission is received, the transmission power of the uplink transmission is reduced, and the uplink transmission is performed based on the reduced transmission power.

5. The method according to claim 3, characterized in that: In the case where the terminal is configured with semi-static downlink transmission and dynamically scheduled with uplink transmission, and the downlink transmission and uplink transmission of the terminal meet the first condition and the second condition, or the terminal is configured with semi-static uplink transmission and dynamically scheduled with downlink transmission, and the downlink transmission and uplink transmission of the terminal meet the first condition and the second condition, The target transmission behavior includes at least one of the following: Executing dynamically scheduled uplink transmission or downlink transmission, canceling part or all of semi-statically configured downlink transmission or uplink transmission, or postponing the semi-statically configured downlink transmission or uplink transmission; In the case where the terminal is dynamically scheduled for downlink transmission, the downlink transmission is received, the transmission power of the uplink transmission is reduced, and the uplink transmission is performed based on the reduced transmission power.

6. The method according to claim 5, characterized in that In a case where the target transmission behavior includes executing a dynamically scheduled uplink transmission or downlink transmission, canceling part or all of a semi-statically configured downlink transmission or uplink transmission, or postponing the semi-statically configured downlink transmission or uplink transmission, the time interval between the end position of the downlink control information DCI corresponding to the dynamically scheduled uplink transmission or downlink transmission and the first target starting position is greater than or equal to a second preset duration, and the first target starting position includes at least one of the following: The starting position of the semi-statically configured downlink transmission or uplink transmission; a starting position of an overlapping portion between the semi-statically configured downlink transmission or uplink transmission and the dynamically scheduled uplink transmission or downlink transmission; The earliest starting position of the downlink transmission starting position and the uplink transmission starting symbol.

7. The method according to claim 3, characterized in that When the terminal is scheduled with a first dynamic scheduling and the terminal is also scheduled with a second dynamic scheduling after the first dynamic scheduling, and downlink transmission and uplink transmission of the terminal meet the first condition and the second condition, The target transmission behavior includes at least one of the following: Perform uplink transmission or downlink transmission according to the transmission corresponding to the second dynamic scheduling, and cancel part or all of the transmission corresponding to the first dynamic scheduling; In a case where the transmission corresponding to the second dynamic scheduling is a downlink transmission, receiving the downlink transmission corresponding to the second dynamic scheduling, reducing the transmission power of the uplink transmission and performing the uplink transmission based on the reduced transmission power; The first dynamic scheduling is that downlink transmission is dynamically scheduled, and the second dynamic scheduling is that uplink transmission is dynamically scheduled; or, the first dynamic scheduling is that uplink transmission is dynamically scheduled, and the second dynamic scheduling is that downlink transmission is dynamically scheduled.

8. The method according to claim 7, characterized in that The first dynamic scheduling and the second dynamic scheduling correspond to different transmission priorities respectively.

9. The method according to claim 7, characterized in that: In the case where uplink transmission or downlink transmission is performed according to the second dynamic scheduling and part or all of the first dynamic scheduled transmission is canceled, the time interval between the end position of the DCI corresponding to the second dynamic scheduling and the second target starting position is greater than or equal to a third preset duration, and the second target starting position includes at least one of the following: a starting position of the transmission corresponding to the first dynamic scheduling; a starting position of an overlap between a transmission corresponding to the first dynamic scheduling and a transmission corresponding to the second dynamic scheduling; The earliest starting position between a starting position of the transmission corresponding to the first dynamic scheduling and a starting position of the transmission corresponding to the second dynamic scheduling.

10. The method according to any one of claims 4 to 9, characterized in that: The reduced transmission power is the maximum power that makes the frequency domain interval between the downlink transmission and uplink transmission of the terminal meet the target frequency domain interval, and the target frequency domain interval is the frequency domain interval between the downlink transmission and uplink transmission that the terminal needs to meet under the reduced transmission power.

11. The method according to claim 10, characterized in that The method further comprises: In a case where the reduced transmission power is less than the first preset power, the terminal cancels the uplink transmission or postpones the uplink transmission.

12. The method according to any one of claims 4 to 9, characterized in that: The method further comprises at least one of the following: In a case where the terminal cancels all uplink transmissions or all downlink transmissions, the terminal determines a downlink reception parameter or an uplink reception parameter according to non-SBFD; When the terminal performs partial uplink transmission or partial downlink transmission, the terminal reduces uplink transmission or downlink transmission in part of the frequency domain until the frequency domain interval between the downlink transmission and uplink transmission of the terminal is greater than or equal to the preset frequency domain interval.

13. The method according to claim 12, characterized in that The terminal reduces uplink transmission or downlink transmission in part of the frequency domain until the frequency domain interval between the downlink transmission and the uplink transmission of the terminal is greater than or equal to the preset frequency domain interval, including: The terminal reduces uplink transmission or downlink transmission in part of the frequency domain, and makes the frequency domain interval between the downlink transmission and uplink transmission of the terminal greater than or equal to the preset frequency domain interval based on puncturing or rate matching.

14. The method according to any one of claims 1 to 13, characterized in that The terminal determines, according to a frequency domain interval between downlink transmission and uplink transmission, a transmission power of the terminal in the target time unit, including: Within the target time unit, the terminal determines the transmission power of the uplink transmission performed by the terminal within the target time unit according to a preset mapping relationship between the frequency domain interval between downlink transmission and uplink transmission and the uplink transmission power, and the frequency domain interval between the downlink transmission and the uplink transmission.

15. The method according to any one of claims 1 to 14, characterized in that The transmission power of the uplink transmission is different, and the frequency domain interval between the downlink transmission and the uplink transmission that the terminal needs to meet is different.

16. A transmission device, applied to a terminal, characterized in that: The device comprises: The determination module is used to determine the target transmission behavior or transmission power of the terminal in the target time unit according to the frequency domain interval between downlink transmission and uplink transmission when the terminal is configured with SBFD.

17. The device according to claim 16, characterized in that The downlink transmission and the uplink transmission satisfy a first condition, wherein the first condition includes at least one of the following: The downlink transmission and the uplink transmission overlap in the time domain; The time domain interval between the downlink transmission and the uplink transmission is less than a first preset duration; The downlink transmission and the uplink transmission are located in the same time slot or the same sub-time slot.

18. The device according to claim 17, characterized in that The downlink transmission and the uplink transmission satisfy a second condition, where the second condition includes at least one of the following: The frequency domain interval between the downlink transmission and the uplink transmission is smaller than a preset frequency domain interval; The downlink transmission frequency domain resource overlaps with a guard band corresponding to the SBFD; The uplink transmission frequency domain resource overlaps with a guard band corresponding to the SBFD.

19. The device according to claim 18, characterized in that When the terminal is configured with semi-static downlink transmission and semi-static uplink transmission, and the downlink transmission and uplink transmission of the terminal meet the first condition and the second condition, The target transmission behavior includes at least one of the following: canceling part or all of the uplink transmission or postponing the uplink transmission, and receiving the downlink transmission; cancel part or all of the downlink transmission or postpone the downlink transmission, and perform the uplink transmission; According to the transmission priorities respectively corresponding to the uplink transmission and the downlink transmission, execute a first transmission, abandon part or all of a second transmission or postpone the second transmission, the first transmission being the one with a higher transmission priority between the uplink transmission and the downlink transmission, and the second transmission being the one with a lower transmission priority between the uplink transmission and the downlink transmission; Determining, according to the type of the uplink transmission, a transmission mode of the uplink transmission or the downlink transmission; Determining, according to the type of the downlink transmission, a transmission mode of the uplink transmission or the downlink transmission; The downlink transmission is received, the transmission power of the uplink transmission is reduced, and the uplink transmission is performed based on the reduced transmission power.

20. The device according to claim 18, characterized in that In the case where the terminal is configured with semi-static downlink transmission and dynamically scheduled with uplink transmission, and the downlink transmission and uplink transmission of the terminal meet the first condition and the second condition, or the terminal is configured with semi-static uplink transmission and dynamically scheduled with downlink transmission, and the downlink transmission and uplink transmission of the terminal meet the first condition and the second condition, The target transmission behavior includes at least one of the following: Executing dynamically scheduled uplink transmission or downlink transmission, canceling part or all of semi-statically configured downlink transmission or uplink transmission, or postponing the semi-statically configured downlink transmission or uplink transmission; In the case where the terminal is dynamically scheduled for downlink transmission, the downlink transmission is received, the transmission power of the uplink transmission is reduced, and the uplink transmission is performed based on the reduced transmission power.

21. The device according to claim 18, characterized in that When the terminal is scheduled with a first dynamic scheduling, and the terminal is also scheduled with a second dynamic scheduling after the first dynamic scheduling, and downlink transmission and uplink transmission of the terminal meet the first condition and the second condition, The target transmission behavior includes at least one of the following: Perform uplink transmission or downlink transmission according to the transmission corresponding to the second dynamic scheduling, and cancel part or all of the transmission corresponding to the first dynamic scheduling; In a case where the transmission corresponding to the second dynamic scheduling is a downlink transmission, receiving the downlink transmission corresponding to the second dynamic scheduling, reducing the transmission power of the uplink transmission and performing the uplink transmission based on the reduced transmission power; The first dynamic scheduling is that downlink transmission is dynamically scheduled, and the second dynamic scheduling is that uplink transmission is dynamically scheduled; or, the first dynamic scheduling is that uplink transmission is dynamically scheduled, and the second dynamic scheduling is that downlink transmission is dynamically scheduled.

22. The device according to any one of claims 16 to 21, characterized in that The determining module is also used for: In the target time unit, the transmission power of the terminal for uplink transmission in the target time unit is determined according to a preset mapping relationship between the frequency domain interval between downlink transmission and uplink transmission and the uplink transmission power, and the frequency domain interval between the downlink transmission and the uplink transmission.

23. A terminal, characterized in that: The method comprises a processor and a memory, wherein the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the steps of the transmission method according to any one of claims 1 to 15 are implemented.

24. A readable storage medium, characterized in that: The readable storage medium stores a program or instruction, and when the program or instruction is executed by a processor, the steps of the transmission method according to any one of claims 1 to 15 are implemented.

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