Wireless communication method, communication device and storage medium

Abstract

Provided are a wireless communication method, device and storage medium, the method comprising: if a terminal device determines that first downlink transmission and first uplink transmission collide on a time domain according to a first time domain resource and a second time domain resource, performing communication based on a target mode, the first time domain resource being used for the first downlink transmission, and the second time domain resource being used for the second downlink transmission; the second time domain resource is used for the first uplink transmission, and the second time domain resource is determined based on a timing advance (TA) of the terminal device.

Description

Wireless communication method, communication device and storage medium Technical Field

[0001] The embodiments of the present application relate to the field of mobile communication technology, and specifically to a wireless communication method, communication equipment, and storage medium. Background Art

[0002] Non-terrestrial networks (NTNs) use satellite communications to provide communications services to users on the ground. Compared to terrestrial cellular networks, satellite communications offer many unique advantages, including freedom from geographic restrictions, long communication distances, and high stability.

[0003] The NTN system in related technologies only supports high-capacity terminal devices. If compact terminals with reduced capabilities are introduced into the NTN system, considering that compact terminals do not support the feature of simultaneous transmission and reception, how to control the communication between the terminal devices and network devices becomes a problem that needs to be solved.

[0004] Summary of the Invention

[0005] Embodiments of the present application provide a wireless communication method, device, and storage medium.

[0006] The wireless communication method provided in the embodiment of the present application includes:

[0007] If the terminal device determines that the first downlink transmission and the first uplink transmission collide in the time domain based on the first time domain resource and the second time domain resource, the terminal device communicates based on a target manner, wherein the first time domain resource is used for the first downlink transmission, the second time domain resource is used for the first uplink transmission, and the second time domain resource is determined based on the timing advance (TA) of the terminal device.

[0008] The wireless communication method provided in the embodiment of the present application includes:

[0009] The network device sends a first downlink transmission and receives a first uplink transmission; or,

[0010] If the network device determines, based on the first time domain resource and the second time domain resource, that the first downlink transmission and the first uplink transmission collide in the time domain, the network device communicates based on the target mode;

[0011] The first time domain resource is a time domain resource for the terminal device to receive the first downlink transmission, the second time domain resource is a time domain resource for the terminal device to send the first uplink transmission, and the second time domain resource is determined based on the timing advance TA of the terminal device.

[0012] The terminal device provided in the embodiment of the present application includes:

[0013] The first communication unit is configured to communicate based on a target manner if it is determined that the first downlink transmission and the first uplink transmission collide in the time domain based on the first time domain resources and the second time domain resources, wherein the first time domain resources are used for the first downlink transmission, the second time domain resources are used for the first uplink transmission, and the second time domain resources are determined based on the timing advance TA of the terminal device.

[0014] The network device provided in the embodiment of the present application includes:

[0015] The second communication unit is configured as follows:

[0016] Sending a first downlink transmission and receiving a first uplink transmission; or,

[0017] If it is determined according to the first time domain resource and the second time domain resource that the first downlink transmission and the first uplink transmission collide in the time domain, communicating based on the target mode;

[0018] The first time domain resource is a time domain resource for the terminal device to receive the first downlink transmission, the second time domain resource is a time domain resource for the terminal device to send the first uplink transmission, and the second time domain resource is determined based on the timing advance TA of the terminal device.

[0019] The communication device provided in an embodiment of the present application may be a terminal device or a network device in the above-mentioned solution, and the communication device includes a processor and a memory. The memory is used to store a computer program, and the processor is used to call and execute the computer program stored in the memory to perform the above-mentioned wireless communication method.

[0020] The chip provided in the embodiment of the present application is used to implement the above-mentioned wireless communication method.

[0021] Specifically, the chip includes: a processor, which is used to call and run a computer program from a memory, so that a device equipped with the chip executes the above-mentioned wireless communication method.

[0022] The computer-readable storage medium provided in an embodiment of the present application is used to store a computer program, which enables a computer to execute the above-mentioned wireless communication method.

[0023] The computer program product provided in the embodiments of the present application includes computer program instructions, which enable a computer to execute the above-mentioned wireless communication method.

[0024] The computer program provided in the embodiment of the present application, when executed on a computer, enables the computer to execute the above-mentioned wireless communication method.

[0025] Through the above technical solution, the time domain resources of the terminal device for uplink transmission are determined based on the TA of the terminal device, thereby taking into account the impact of the TA on the uplink transmission of the terminal device, and regulating the communication behavior of the terminal device when the uplink transmission and downlink transmission collide in the time domain. In particular, for compact terminals that do not support simultaneous transmission and reception, namely half-duplex terminals (HD-UE), the HD-UE can communicate normally, achieve better data transmission throughput, and improve communication reliability and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0027] FIG1 is a schematic diagram of an application scenario of an embodiment of the present application;

[0028] FIG2 is a schematic diagram of the architecture of another communication system provided in an embodiment of the present application;

[0029] FIG3 is a schematic diagram of the architecture of another communication system provided in an embodiment of the present application;

[0030] FIG4 is a schematic diagram of an NTN scenario based on transparent forwarding satellites provided in an embodiment of the present application;

[0031] FIG5 is a schematic diagram of an NTN scenario based on a regenerative forwarding satellite according to an embodiment of the present application;

[0032] FIG6 is a schematic diagram of an optional flow chart of a wireless communication method provided in an embodiment of the present application;

[0033] FIG7 is a schematic diagram of an optional flow chart of a wireless communication method provided in an embodiment of the present application;

[0034] FIG8 is an optional schematic diagram of TA-based time domain resource adjustment provided in an embodiment of the present application;

[0035] FIG9 is an optional schematic diagram of a scheduling sequence provided in an embodiment of the present application;

[0036] FIG10 is an optional schematic diagram of uplink transmission and downlink transmission colliding in the time domain provided by an embodiment of the present application;

[0037] FIG11 is an optional schematic diagram of a scheduling sequence provided in an embodiment of the present application;

[0038] FIG12 is an optional schematic diagram of uplink transmission and downlink transmission colliding in the time domain provided by an embodiment of the present application;

[0039] FIG13 is an optional schematic diagram of uplink transmission and downlink transmission colliding in the time domain provided by an embodiment of the present application;

[0040] FIG14 is an optional schematic diagram of a scheduling sequence provided in an embodiment of the present application;

[0041] FIG15 is an optional schematic diagram of a scheduling sequence provided in an embodiment of the present application;

[0042] FIG16 is an optional schematic diagram of a scheduling sequence provided in an embodiment of the present application;

[0043] FIG17 is an optional schematic diagram of a scheduling sequence provided in an embodiment of the present application;

[0044] FIG18 is an optional schematic diagram of a scheduling sequence provided in an embodiment of the present application;

[0045] FIG19 is an optional schematic diagram of a scheduling sequence provided in an embodiment of the present application;

[0046] FIG20A is a schematic diagram of an optional flow chart of a wireless communication method provided in an embodiment of the present application;

[0047] FIG20B is a schematic diagram of an optional flow chart of a wireless communication method provided in an embodiment of the present application;

[0048] FIG21 is a schematic diagram of an optional structure of a terminal device provided in an embodiment of the present application;

[0049] FIG22 is a schematic diagram of an optional structure of a network device provided in an embodiment of the present application;

[0050] FIG23 is a schematic structural diagram of a communication device provided in an embodiment of the present application;

[0051] FIG24 is a schematic structural diagram of a chip according to an embodiment of the present application;

[0052] Figure 25 is a schematic block diagram of a communication system provided in an embodiment of the present application. DETAILED DESCRIPTION

[0053] The following will describe the technical solutions in the embodiments of this application in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0054] Communication system scenarios include terrestrial networks (TNs) and NTNs. NTNs typically use satellite communications to provide communication services to terrestrial users. Currently, NTN systems include NR-NTN and IoT-NTN, and other NTN systems may be added in the future.

[0055] Figure 1 is a schematic diagram of the architecture of a communication system provided by an embodiment of the present application. As shown in Figure 1, communication system 100 may include terminal device 110 and network device 120. Network device 120 may communicate with terminal device 110 via an air interface. Multi-service transmission is supported between terminal device 110 and network device 120.

[0056] It should be understood that the embodiments of the present application are only illustrative of the communication system 100, but the embodiments of the present application are not limited thereto. That is, the technical solutions of the embodiments of the present application can be applied to various communication systems, such as: Long Term Evolution (LTE) system, LTE Time Division Duplex (TDD), Universal Mobile Telecommunication System (UMTS), Internet of Things (IoT) system, Narrow Band Internet of Things (NB-IoT) system, enhanced Machine-Type Communications (eMTC) system, 5G communication system (also known as New Radio (NR) communication system), or future communication systems.

[0057] In the communication system 100 shown in Figure 1, the network device 120 may be an access network device that communicates with the terminal device 110. The access network device may provide communication coverage for a specific geographical area and may communicate with the terminal device 110 (eg, UE) located within the coverage area.

[0058] The network device 120 may be an evolved Node B (eNB or eNodeB) in a Long Term Evolution (LTE) system, or a Next Generation Radio Access Network (NG RAN) device, or a base station (gNB) in an NR system, or a wireless controller in a Cloud Radio Access Network (CRAN), or the network device 120 may be a relay station, an access point, an in-vehicle device, a wearable device, a hub, a switch, a bridge, a router, or a network device in a future evolved Public Land Mobile Network (PLMN), etc.

[0059] The terminal device 110 may be any terminal device, including but not limited to a terminal device connected to the network device 120 or other terminal devices by wire or wireless connection.

[0060] For example, the terminal device 110 may refer to an access terminal, user equipment (UE), a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, a user agent, or a user apparatus. An access terminal may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, an IoT device, a satellite handheld terminal, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, an in-vehicle device, a wearable device, a terminal device in a 5G network, or a terminal device in a future evolution network, etc.

[0061] The terminal device 110 can be used for device-to-device (D2D) communication.

[0062] The wireless communication system 100 may further include a core network device 130 for communicating with the base station. The core network device 130 may be a 5G core network (5G Core, 5GC) device, such as an Access and Mobility Management Function (AMF), an Authentication Server Function (AUSF), a User Plane Function (UPF), or a Session Management Function (SMF). Optionally, the core network device 130 may also be an Evolved Packet Core (EPC) device of an LTE network, such as a Session Management Function + Core Packet Gateway (SMF+PGW-C) device. It should be understood that SMF+PGW-C can simultaneously implement the functions that can be implemented by SMF and PGW-C. During the network evolution process, the above-mentioned core network device may also be called other names, or a new network entity may be formed by dividing the functions of the core network, which is not limited in the embodiments of the present application.

[0063] The functional units in the communication system 100 may also establish connections and implement communication via next generation (NG) network interfaces.

[0064] For example, the terminal device establishes an air interface connection with the access network device through the Uu interface for transmitting user plane data and control plane signaling; the terminal device can establish a control plane signaling connection with the AMF through the NG interface 1 (referred to as N1); the access network device, such as the next generation wireless access base station (gNB), can establish a user plane data connection with the UPF through the NG interface 3 (referred to as N3); the access network device can establish a control plane signaling connection with the AMF through the NG interface 2 (referred to as N2); the UPF can establish a control plane signaling connection with the SMF through the NG interface 4 (referred to as N4); the UPF can exchange user plane data with the data network through the NG interface 6 (referred to as N6); the AMF can establish a control plane signaling connection with the SMF through the NG interface 11 (referred to as N11); the SMF can establish a control plane signaling connection with the PCF through the NG interface 7 (referred to as N7).

[0065] Figure 1 exemplarily shows a base station, a core network device and two terminal devices. Optionally, the wireless communication system 100 may include multiple base station devices and each base station may include other numbers of terminal devices within its coverage area, which is not limited in this embodiment of the present application.

[0066] NTN generally uses satellite communications to provide communications services to terrestrial users. Compared to terrestrial cellular networks, satellite communications offer many unique advantages. First, satellite communications are not restricted by user location. For example, conventional terrestrial communications cannot cover areas such as oceans, high mountains, and deserts where communications equipment cannot be deployed or where there is a sparse population. However, satellite communications, because a single satellite can cover a large area and orbits the Earth, theoretically every corner of the globe can be covered. Second, satellite communications have significant social value. Satellite communications can provide low-cost coverage in remote mountainous areas and poor, underdeveloped countries and regions, enabling people in these areas to enjoy advanced voice communications and mobile internet technologies, helping to narrow the digital divide with developed regions and promoting their development. Third, satellite communications offer long range, and the cost of communications does not increase significantly with increasing distance. Finally, satellite communications are highly stable and unaffected by natural disasters.

[0067] NTN technology can be combined with various communication systems. For example, NTN technology can be combined with the NR system to form an NR-NTN system. Another example is that NTN technology can be combined with the Internet of Things (IoT) system to form an IoT-NTN system. IoT-NTN systems can include NB-IoT-NTN systems and eMTC-NTN systems.

[0068] FIG2 is a schematic diagram of the architecture of another communication system provided in an embodiment of the present application.

[0069] As shown in Figure 2, a terminal device 201 and a satellite 202 are included, and wireless communication can be performed between the terminal device 201 and the satellite 202. The network formed between the terminal device 201 and the satellite 202 can also be referred to as an NTN. In the architecture of the communication system shown in Figure 2, the satellite 202 can have the function of a base station, and the terminal device 201 and the satellite 202 can communicate directly. In the system architecture, the satellite 202 can be referred to as a network device. In some embodiments of the present application, the communication system can include multiple network devices 1102, and each network device 1102 can include a different number of terminal devices within its coverage area, which is not limited in the embodiments of the present application.

[0070] FIG3 is a schematic diagram of the architecture of another communication system provided in an embodiment of the present application.

[0071] As shown in Figure 3, it includes a terminal device 201, a satellite 202 and a base station 203. Wireless communication can be carried out between the terminal device 201 and the satellite 202, and communication can be carried out between the satellite 202 and the base station 203. The network formed between the terminal device 201, the satellite 202 and the base station 203 can also be referred to as an NTN. In the architecture of the communication system shown in Figure 3, the satellite 202 may not have the function of a base station, and the communication between the terminal device 201 and the base station 203 needs to be transferred through the satellite 202. In this system architecture, the base station 203 can be referred to as a network device. In some embodiments of the present application, the communication system may include multiple base stations 203, and each base station 203 may include other numbers of terminal devices within its coverage area, which is not limited in the embodiments of the present application. The base station 203 can be the network device 120 in Figure 1.

[0072] It should be understood that the satellites 202 include but are not limited to:

[0073] Satellites in Low-Earth Orbit (LEO), Medium-Earth Orbit (MEO), Geostationary Earth Orbit (GEO), and High Elliptical Orbit (HEO) orbits, among others, can use multiple beams to provide ground coverage. For example, a single satellite can form dozens or even hundreds of beams to cover the ground. In other words, a single satellite beam can cover a ground area tens to hundreds of kilometers in diameter, ensuring satellite coverage and increasing the capacity of the entire satellite communications system.

[0074] For example, LEO satellites can have an altitude range of 500 km to 1500 km, with an orbital period of approximately 1.5 to 2 hours. The signal propagation delay for single-hop communication between users is generally less than 20 milliseconds, and the maximum satellite visibility time is 20 minutes. LEO satellites have short signal propagation distances and low link loss, requiring low transmit power from user terminals. GEO satellites can have an orbital altitude of 35,786 km and a period of 24 hours around the Earth. The signal propagation delay for single-hop communication between users is generally 250 milliseconds.

[0075] In order to ensure satellite coverage and improve the system capacity of the entire satellite communication system, satellites use multiple beams to cover the ground. A satellite can form dozens or even hundreds of beams to cover the ground; a satellite beam can cover a ground area with a diameter of tens to hundreds of kilometers.

[0076] It should be noted that Figures 1 to 3 illustrate the systems to which this application applies only by way of example. The methods described in the embodiments of this application are also applicable to other systems. Furthermore, the terms "system" and "network" are often used interchangeably herein. The term "and / or" herein simply describes an association relationship between associated objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A exists alone, A and B exist simultaneously, or B exists alone. Furthermore, the character " / " generally indicates that the associated objects are in an "or" relationship. It should also be understood that the term "indication" in the embodiments of this application can be direct, indirect, or indicate an associated relationship. For example, "A indicates B" can mean that A directly indicates B, for example, B can obtain information through A; it can also mean that A indirectly indicates B, for example, A indicates C, and B can obtain information through C; or it can mean that A and B have an associated relationship. It should also be understood that the term "corresponding" in the embodiments of this application can mean that two objects have a direct or indirect correspondence relationship, an associated relationship, or a relationship between an indicator and the indicated, a configuration and the configured, and so on. It should also be understood that the “predefined” or “predefined rules” mentioned in the embodiments of the present application can be implemented by pre-saving corresponding codes, tables or other methods that can be used to indicate relevant information in a device (for example, including a terminal device and a network device), and the present application does not limit its specific implementation method. For example, predefined can refer to a definition in a protocol. It should also be understood that in the embodiments of the present application, the “protocol” can refer to a standard protocol in the field of communications, such as an LTE protocol, an NR protocol, and related protocols used in future communication systems, and the present application does not limit this.

[0077] Satellites can be categorized as either transparent payload carriers or regenerative payload carriers based on their functionality. Transparent payload carriers only provide radio frequency filtering, frequency conversion, and amplification, transparently forwarding signals without altering the waveform of the transmitted signal. Regenerative payload carriers, in addition to providing radio frequency filtering, frequency conversion, and amplification, can also offer demodulation / decoding, routing / conversion, and encoding / modulation, embodying some or all of the functions of a base station.

[0078] An NTN may include the following network elements: one or more gateways, feeder links, service links, satellites, and inter-satellite links (ISLs). Gateways facilitate communication between satellites and terrestrial public networks, between gNBs on satellites and the core network, or between gNB distributed units (DUs) on satellites and gNB central units (CUs) on the ground. Feeder links are the communication links between gateways and satellites. Service links are the communication links between terminal devices and satellites. Satellites can be categorized as either transparent forwarding or regenerative forwarding based on their functionality. Transparent forwarding only provides radio frequency filtering, frequency conversion, and amplification, transparently forwarding signals without altering the waveform of the forwarded signal. Regenerative forwarding, in addition to radio frequency filtering, frequency conversion, and amplification, can also provide demodulation / decoding, routing / conversion, and encoding / modulation. They have some or all of the functions of a base station. Inter-satellite links are the communication links between satellites in a regenerative forwarding network architecture.

[0079] FIG4 and FIG5 are schematic diagrams showing NTN scenarios based on transparent forwarding satellites and regenerative forwarding satellites, respectively.

[0080] As shown in Figure 4 , for an NTN scenario based on transparent forwarding satellites, gateway 401 and satellite 402 communicate via a feeder link, and satellite 402 and terminal 403 can communicate via a service link. Gateway 401 is connected to data network 404. As shown in Figure 5 , for an NTN scenario based on regenerative forwarding satellites, satellites 402 and 405 communicate via an inter-satellite link, gateway 401 and satellite 402 or satellite 405 communicate via a feeder link, and satellite 402 and terminal 403 can communicate via a service link.

[0081] To facilitate understanding of the technical solutions of the embodiments of the present application, the relevant technologies of the embodiments of the present application are described below. The following relevant technologies can be arbitrarily combined with the technical solutions of the embodiments of the present application as optional solutions, and they all fall within the protection scope of the embodiments of the present application.

[0082] Compact terminal equipment

[0083] In addition to supporting extremely high peak rates and high-capacity terminals, NR systems also support compact terminals with reduced capabilities. Compact terminals, also known as Reduced Capability (RedCap) terminals in standardization, are typically used in applications with lower processing capacity and speed requirements, such as the Internet of Things, industrial automation, and wearable devices. The communication hardware of compact terminals has a low size and power consumption, and does not support complex feature sets such as high reliability and low latency and carrier aggregation. Lightweight capabilities are a characteristic of these terminals.

[0084] To reduce complexity, the NR system supports half-duplex (HD) compact terminals, also known as half-duplex UEs (HD-UEs). When the serving cell operates in frequency division duplex (FDD) mode, the HD-UE cannot transmit and receive simultaneously on the serving cell. Due to this inability to transmit and receive simultaneously, the HD-UE is subject to certain restrictions when communicating in the serving cell operating in FDD mode. The collision between the uplink and downlink transmissions of the HD-UE may include the following situations:

[0085] Case 1: Collision between dynamically scheduled downlink transmissions and dynamically scheduled uplink transmissions

[0086] Dynamically scheduled downlink transmissions include: Physical Downlink Shared Channel (PDSCH) or Channel Status Indicator Reference Signal (CSI-RS) scheduled in Downlink Control Information (DCI) format; dynamically scheduled uplink transmissions include: Physical Uplink Shared Channel (PUSCH), Physical Uplink Control Channel (PUCCH), Physical Random Access Channel (PRACH), or Sounding Reference Signal (SRS) scheduled in DCI format.

[0087] The terminal device does not expect such a collision to occur; or, if such a collision occurs, the terminal device considers it to be an erroneous scheduling.

[0088] Case 2: Collision between a semi-statically configured downlink transmission and a semi-statically configured uplink transmission

[0089] The downlink transmission of semi-static configuration includes: PDCCH configured by high-level layers, or PDSCH, or CSI-RS, or downlink positioning reference signal (Positioning Reference Signal, DL PRS), among which, the PDCCH configured by high-level layers includes not only PDCCH configured by dedicated high-level parameters, but also PDCCH in the Type-0 / 0A / 1 / 2-PDCCH common search space (Common Search Space, CSS) configured by public high-level parameters; the uplink transmission of semi-static configuration includes: SRS configured by high-level layers, or PUCCH, or PUSCH.

[0090] The terminal device does not expect such a collision to occur; or, if such a collision occurs, the terminal device considers it to be an erroneous scheduling.

[0091] Case 3: Collision between dynamically scheduled downlink transmissions and semi-statically configured uplink transmissions

[0092] Dynamically scheduled downlink transmission includes: PDSCH or CSI-RS scheduled in DCI format; semi-statically configured uplink transmission includes: SRS, PUCCH, or PUSCH configured by higher layers.

[0093] If a collision occurs in this case, when the semi-statically configured uplink transmission includes a PUCCH or PUSCH configured by a higher layer, if the first symbol used to transmit the PUCCH or PUSCH is within T proc,2 During the processing time, the terminal device does not expect to cancel the transmission of the PUCCH or the PUSCH; otherwise, the terminal device cancels the PUCCH or the PUSCH or the repeated copy in the PUSCH; when the semi-statically configured uplink transmission includes the SRS configured by the higher layer, if the symbol used to transmit the SRS is within T relative to the last symbol of the CORESET in the above DCI format, proc,2 During the processing time, the terminal device does not expect to cancel the transmission of the SRS symbol. The terminal device cancels the transmission of other SRS symbols.

[0094] Case 4: Collision between a semi-statically configured downlink transmission and a dynamically scheduled uplink transmission

[0095] Semi-statically configured downlink transmissions include: PDCCH, PDSCH, CSI-RS, or DL ​​PRS configured by higher layers; dynamically scheduled uplink transmissions include: PUSCH, PUCCH, PRACH, or SRS scheduled in DCI format.

[0096] If the terminal device does not receive the dynamically scheduled uplink transmission, the terminal device receives the semi-statically configured downlink transmission; otherwise, the terminal device does not receive the semi-statically configured downlink transmission.

[0097] Case 5: Collision between a synchronization signal block (SS / PBCH block) and a dynamically scheduled or semi-statically configured uplink transmission

[0098] Dynamically scheduled or semi-statically configured uplink transmissions include: PUSCH, PUCCH, SRS, or PRACH scheduled in DCI format.

[0099] If a collision occurs in this situation, the terminal device does not transmit PUSCH, or PUCCH, or SRS on overlapping symbols, or PRACH scheduled by the DCI format.

[0100] Case 6: Collision between a dynamically scheduled or semi-statically configured downlink transmission and an uplink transmission on a valid random access channel transmission opportunity (RACH Occasion, RO)

[0101] Uplink transmissions on valid ROs include: PRACH or MsgA PUSCH triggered by higher layers; downlink transmissions dynamically scheduled or semi-statically configured include: PDCCH, PDSCH, CSI-RS, DL PRS, or SSB.

[0102] If a collision occurs in this situation, the terminal device determines based on its own implementation whether to send an uplink transmission on a valid RO or to receive a dynamically scheduled or semi-statically configured downlink transmission.

[0103] Case 7: Collision caused by switching time from uplink to downlink or downlink to uplink

[0104] If the time interval between the last symbol of the uplink transmission and the first symbol of the next earliest SSB does not exceed the first switching time, the terminal device does not send the uplink transmission; the uplink transmission includes: high-level configured PUCCH, or PUSCH, or SRS symbols that meet the conditions, and the first switching time includes the switching time from sending to receiving.

[0105] If the time interval between the first symbol of the uplink transmission and the last symbol of the previous latest SSB does not exceed the second switching time, the terminal device does not send the uplink transmission; the uplink transmission includes: high-level configured PUCCH, or PUSCH, or SRS symbols that meet the conditions, and the second switching time includes the switching time from reception to transmission.

[0106] If the time interval between the start symbol of the uplink transmission and the end symbol of the downlink transmission does not exceed the second switching time, or if the time interval between the end symbol of the uplink transmission and the start symbol of the downlink transmission does not exceed the first switching time, then the terminal device determines to send uplink transmission or receive downlink transmission based on its own implementation; the first switching time includes the switching time from sending to receiving, and the second switching time includes the switching time from receiving to sending; the uplink transmission includes: PRACH or MsgA PUSCH triggered by a higher layer, and the downlink transmission includes: PDCCH, or PDSCH, or CSI-RS, or DL ​​PRS, or SSB.

[0107] Scheduling Timing Enhancement in NR-NTN Networks

[0108] In the NR-NTN system, in order to overcome the large transmission delay in the NTN system, the uplink transmission timing relationship in the NR system is enhanced. In the NR system, the terminal device receives a downlink transmission in time slot n, and the downlink transmission can be scheduled for the uplink transmission in time slot n+k. In the NR-NTN system, the terminal device receives a downlink transmission in time slot n, and the downlink transmission can be scheduled for the uplink transmission in time slot n+k+k. offset Uplink transmission on, where K offset It is an offset parameter introduced to overcome the large transmission delay in the NTN system. Specifically, K offset =K cell,offset -K UE,offset , where K cell,offset It is a common high-level parameter such as the offset parameter of the system message configuration, K UE,offset It is a dedicated high-level parameter such as the offset parameter configured by the Differential Koffset MAC CE command. If there is no corresponding configuration, the corresponding K cell,offset or K UE,offset The value is 0.

[0109] The downlink transmission includes PDCCH, and the uplink transmission includes PUSCH scheduled by the PDCCH; or, the downlink transmission includes PDCCH, and the uplink transmission includes HARQ-ACK feedback corresponding to PDSCH scheduled by the PDCCH; or, the downlink transmission includes random access response (Random Access Respons, RAR) authorization information, and the uplink transmission includes PUSCH scheduled by the RAR authorization information.

[0110] In addition, in the NR-NTN system, network devices also configure the parameter Kmac for terminal devices. Kmac is a common high-level parameter, such as the offset parameter configured in system messages, which is used to indicate the round-trip transmission delay between the reference point and the network device. At the reference point, the downlink transmission time slot and the uplink transmission time slot in the network are aligned.

[0111] The NR-NTN system only supports high-capacity terminals. If compact terminals are introduced into the NR-NTN system, given that compact terminals do not support simultaneous transmission and reception, it is currently unclear how to restrict the communication behavior of HD-UEs to enable them to communicate normally in the serving cell operating in FDD mode.

[0112] To facilitate understanding of the technical solutions of the embodiments of the present application, the technical solutions of the present application are described in detail below through specific embodiments. The above related technologies can be combined arbitrarily with the technical solutions of the embodiments of the present application as optional solutions, and all of them fall within the scope of protection of the embodiments of the present application. The embodiments of the present application include at least part of the following contents.

[0113] The wireless communication method provided in an embodiment of the present application, as shown in FIG6 , is applied to a terminal device and includes:

[0114] S601. If the terminal device determines that the first downlink transmission and the first uplink transmission collide in the time domain based on the first time domain resource and the second time domain resource, the terminal device communicates based on a target manner, wherein the first time domain resource is used for the first downlink transmission, the second time domain resource is used for the first uplink transmission, and the second time domain resource is determined based on the timing advance TA of the terminal device.

[0115] The wireless communication method provided in an embodiment of the present application, as shown in FIG7 , is applied to a network device and includes:

[0116] S701. The network device sends a first downlink transmission and receives a first uplink transmission; or, if the network device determines that the first downlink transmission and the first uplink transmission collide in the time domain based on the first time domain resource and the second time domain resource, the network device communicates based on a target manner; wherein, the first time domain resource is the time domain resource for the terminal device to receive the first downlink transmission, the second time domain resource is the time domain resource for the terminal device to send the first uplink transmission, and the second time domain resource is determined based on the timing advance TA of the terminal device.

[0117] Next, the wireless communication method shown in FIG. 6 and FIG. 7 provided in the embodiments of the present application is described.

[0118] The first time domain resource can be understood as the time domain resource used for receiving the first downlink transmission of the terminal device, or the time domain resource used by the terminal device to receive the first downlink transmission. The second time domain resource can be understood as the time domain resource used for sending the first uplink transmission of the terminal device, or the time domain resource used by the terminal device to send the first uplink transmission. The second time domain resource is the time domain resource after taking into account the TA of the terminal device.

[0119] In some embodiments, the first time domain resource is determined based on a downlink reception time unit of a terminal device, the second time domain resource is determined based on an uplink transmission time unit of the terminal device, and the first downlink transmission and the first uplink transmission collide in the time domain, which means that from the perspective of the terminal device, the first downlink transmission received by the terminal device on the first time domain resource and the first uplink transmission sent on the second time domain resource will collide in the time domain. It is understandable that the first downlink transmission and the first uplink transmission may or may not collide in the frequency domain, and this application is not limited to this.

[0120] In one example, as shown in Figure 8, the uplink transmission time unit of the terminal device is advanced by 3 time slots relative to the downlink reception time unit of the terminal device. It can be understood that the uplink transmission time unit of the terminal device relative to the downlink reception time unit of the terminal device takes into account the TA influence of the terminal device.

[0121] In one example, in the NR-NTN system, when the terminal device does not support simultaneous transmission and reception, for example, when the terminal device is an HD-UE, the impact of the scheduling timing on the transmission of the terminal device needs to be considered. Figure 9 shows a schematic diagram of the scheduling timing in the NR-NTN system. As shown in Figure 9, it is assumed that the uplink time unit and the downlink time unit in the NTN network are aligned at the reference point (RP), the round-trip transmission delay Kmac between the network device and the RP in the NTN network is 2 time slots, and the round-trip transmission delay between the terminal device and the RP, that is, the TA value, is 4.5 time slots. When the network device schedules the terminal device to perform uplink transmission, the network device configures K for the terminal device.offset The value should be greater than or equal to the TA value of the terminal device. In the example in Figure 9, the k value is 2, K offset The value is 5, which satisfies the condition. The terminal device receives a downlink transmission in time slot n, which schedules the terminal device to send an uplink transmission in time slot n+7. Taking TA into account, the terminal device's uplink time slot n is 4.5 time slots ahead of the terminal device's downlink time slot n.

[0122] It can be understood that, for a network device, the first time domain resource or the second time domain resource is a time domain resource calculated by the network device from the perspective of the terminal device, and is not a time domain resource for the network device to actually send a downlink transmission or a time domain resource for receiving an uplink transmission. For example, the network device schedules the terminal device to receive a first downlink transmission on a first time domain resource, and to send a first uplink transmission on a second time domain resource. From the perspective of the network device, the first downlink transmission and the first uplink transmission will not collide in the time domain, but this does not mean that from the perspective of the terminal device, the first downlink transmission and the first uplink transmission will not collide in the time domain. If the network device can obtain the TA information of the terminal device (for example, the terminal device reports its own TA information to the network device), the network device can calculate the time domain position of the first time domain resource and the second time domain resource determined from the terminal device side based on the TA information of the terminal device, thereby determining whether the first downlink transmission on the first time domain resource and the first uplink transmission on the second time domain resource collide in the time domain from the perspective of the terminal device.

[0123] In some embodiments, the TA of the terminal device is determined based on at least one of the following information:

[0124] Synchronous auxiliary information sent by network devices;

[0125] TA command sent by the network device;

[0126] Global Navigation Satellite System (GNSS) positioning information of the terminal device.

[0127] Optionally, the synchronization assistance information includes at least one of the following information: satellite ephemeris information, public TA parameters, reference time indication information (epoch time, used to determine time t0), and target timer duration. The satellite ephemeris information is used to obtain the position and / or velocity of the satellite in the NTN network; the public TA parameters are used to obtain the TA value of the feeder link in the NTN network; the reference time indication information is used to indicate the reference time t0 associated with the synchronization assistance information (e.g., the serving satellite ephemeris information and the public TA parameters); and the target timer duration is used by the terminal device to determine the time period during which the acquired synchronization assistance information is valid.

[0128] Optionally, the unit of TA is Ts or Tc, where Tc = 1 / (480000*4096) seconds and Ts = 1 / (15000*2048) seconds. It is understood that for ease of description, TA can be described as an integer number of time slots and / or a fractional number of time slots.

[0129] If the terminal device determines, based on the first time domain resource and the second time domain resource, that the first downlink transmission collides with the first uplink transmission, the terminal device communicates based on the target mode.

[0130] In the embodiment of the present application, the terminal device may be a compact terminal device; or, the terminal device may be a non-compact terminal device, which is not limited in the present application.

[0131] In an embodiment of the present application, the terminal device may be a half-duplex terminal device that does not support simultaneous transmission and reception; or, the terminal device may be a full-duplex terminal device that supports simultaneous transmission and reception, which is not limited in the present application.

[0132] In one example, assuming that the terminal device does not support simultaneous transmission and reception, the terminal device cannot receive downlink transmission on the downlink symbol that overlaps with its own uplink transmission; and / or, the terminal device cannot receive downlink transmission within the second switching time before the starting symbol of the uplink transmission.

[0133] In the embodiment of the present application, the terminal device and the network device may belong to the NTN network.

[0134] In an embodiment of the present application, the terminal device may be a terminal device in a service cell operating in an FDD mode; or, the terminal device may be a terminal device in a service cell operating in a TDD mode, which is not limited in the present application.

[0135] As an example, the terminal device is a half-duplex terminal device that does not support simultaneous transmission and reception in a serving cell operating in an FDD mode. As another example, the terminal device is a terminal device that does not support simultaneous transmission and reception in a serving cell operating in a TDD mode, wherein the terminal device may be a half-duplex terminal device that does not support simultaneous transmission and reception, or a full-duplex terminal device that supports simultaneous transmission and reception.

[0136] In the embodiment of the present application, for a network device, one of the following two transmission modes can be implemented:

[0137] Transmission mode 1: The network device sends a first downlink transmission and receives a first uplink transmission.

[0138] Transmission mode 2: If the network device determines, based on the first time domain resource and the second time domain resource, that the first downlink transmission collides with the first uplink transmission, communication is performed based on a target mode.

[0139] For the first transmission mode, the network device does not care about or does not know whether the terminal device receives the first downlink transmission and sends the first uplink transmission, and directly receives the first uplink transmission and sends the first downlink transmission.

[0140] For transmission mode 2, the network device determines the processing behavior of the terminal device regarding the first downlink transmission and the first uplink transmission from the perspective of the terminal device, and performs corresponding processing behavior according to the processing behavior of the terminal device, that is, determines that the first downlink transmission and the first uplink transmission collide, and then communicates based on the target mode.

[0141] In some embodiments, the collision of the first downlink transmission and the first uplink transmission may also refer to the collision of the first time domain resource and the second time domain resource.

[0142] In some embodiments, a collision mode in which the first downlink transmission collides with the first uplink transmission includes one of the following:

[0143] Collision mode 1: The first time domain resource and the second time domain resource overlap in the time domain, wherein the third time domain resource includes the overlapping portion of the first time domain resource and the second time domain resource;

[0144] Collision mode 2: The time interval between the first time domain resource and the second time domain resource is less than the transition time (Transition time), and the transition time is the time required to switch between receiving and sending or sending and receiving, wherein the first time domain resource and the second time domain resource do not overlap in the time domain.

[0145] For collision mode 1, the third time domain resource is used for both the first downlink transmission and the first uplink transmission.

[0146] For at least some terminal devices in the embodiments of the present application, for example, terminal devices that do not support simultaneous reception and transmission, it is impossible to perform reception of the first downlink transmission and transmission of the first uplink transmission on the third time domain resource.

[0147] In some embodiments, for collision mode 1, the third time domain resource includes a portion of the first time domain resource and the second time domain resource that overlaps in the time domain, including:

[0148] The third time domain resource is the portion where the first time domain resource and the second time domain resource overlap in the time domain; or,

[0149] The third time domain resource is a time unit including a portion where the first time domain resource and the second time domain resource overlap in the time domain.

[0150] The time unit may include: a subframe, a time slot, or a symbol, etc. It is understandable that the unit of the time domain resource may be a symbol, a time slot, or a subframe.

[0151] In one example, assuming that TA is 3 time slots, the first time domain resource includes the downlink receiving time slot n of the terminal device, that is, the downlink time slot n, and the second time domain resource includes the uplink sending time slot n+3 of the terminal device, that is, the uplink time slot n+3. Then the first time domain resource and the second time domain resource overlap on the downlink time slot n of the terminal device or the uplink time slot n+3 of the terminal device, and the third time domain resource includes the downlink time slot n of the terminal device or the uplink time slot n+3 of the terminal device.

[0152] In one example, assuming that TA is 2 time slots, the first time domain resource is symbols 0 to 10 in the downlink time slot n of the terminal device, the second time domain resource is symbols 4 to 12 in the uplink time slot n+2 of the terminal device, the first time domain resource and the second time domain resource overlap on symbols 4 to 10 of the downlink time slot n of the terminal device or symbols 4 to 10 of the uplink time slot n+2 of the terminal device, the third time domain resource is symbols 4 to 10 of the downlink time slot n of the terminal device or symbols 4 to 10 of the uplink time slot n+2 of the terminal device, or, the third time domain resource is the downlink time slot n or the uplink time slot n+2 of the terminal device.

[0153] In one example, as shown in FIG10 , the first time domain resource is the downlink time slot n+3 of the terminal device, and the TA is 4.5 time slots. The second time slot resource is the uplink time slot n+7 of the terminal device (overlapping with the downlink time slots n+2.5 to 3.5 of the terminal device). The third time domain resource is the downlink time slot n+3 to n+3.5 of the terminal device shown in area 901 or the uplink time slot 6.5 to 6 of the terminal device. Alternatively, the third time domain resource is the time unit including area 1001. When the time unit is a time slot, the third time domain resource is the downlink time slot n+3 of the terminal device including area 901 or the uplink time slot n+7 of the terminal device.

[0154] In one example, as shown in FIG11 , assuming that the uplink time unit and the downlink time unit in the NTN network are aligned at a reference point (RP), the round-trip transmission delay Kmac between the network device and the RP is 2 time slots, and the round-trip transmission delay (TA) between the terminal device and the RP is 4.5 time slots, the network device schedules the terminal device to receive the first downlink transmission in downlink time slot n+2 and to send the first uplink transmission in uplink time slot n+7. In this example, the first time domain resource is downlink time slot n+2 determined based on the downlink time slot of the terminal device, and the second time domain resource is uplink time slot n+7 determined based on the uplink time slot of the terminal device. The downlink time slot n+2 and uplink time slot n+7 of the terminal device overlap in the time domain, and the third time domain resource includes the overlapping portion, that is, the third time domain resource includes the second half of the downlink time slot n+2 of the terminal device, or the third time domain resource includes the first half of the uplink time slot n+7 of the terminal device.

[0155] Taking the unit of the time domain resource as a symbol as an example, the first time domain resource overlaps with the second time domain resource, including at least one of the following:

[0156] The first uplink transmission overlaps with at least one symbol in the first group of symbols of the first downlink transmission after considering the TA effect;

[0157] The first downlink transmission overlaps with at least one symbol in the first group of symbols of the first uplink transmission after considering the TA influence.

[0158] The first uplink transmission overlaps with at least one symbol in the first group of symbols of the first downlink transmission after considering the influence of TA, including: the first uplink transmission overlaps with any symbol in the first group of symbols after considering the influence of TA, or the first uplink transmission overlaps with part of the symbols in the first group of symbols after considering the influence of TA, or the first uplink transmission overlaps with all symbols in the first group of symbols after considering the influence of TA.

[0159] The first downlink transmission overlaps with at least one symbol in the first group of symbols of the first uplink transmission after considering the influence of TA, including: the first downlink transmission overlaps with any symbol in the first group of symbols after considering the influence of TA, or the first downlink transmission overlaps with part of the symbols in the first group of symbols after considering the influence of TA, or the first downlink transmission overlaps with all symbols in the first group of symbols after considering the influence of TA.

[0160] For collision mode two, the time interval between the first time domain resource and the second time domain resource is less than the time required for the terminal device to transition between receiving and sending. Therefore, the terminal device does not have enough time to send the first uplink transmission or receive the first downlink transmission after completing the reception of the first downlink transmission or the sending of the first uplink transmission.

[0161] In some embodiments, for collision mode 2, the time interval between the first time domain resource and the second time domain resource is 0, or in other words, the first time domain resource and the second time domain resource are adjacent time domain resources in the time domain.

[0162] In some embodiments, for collision mode 2, the first downlink transmission and the first uplink transmission collide in the time domain, including:

[0163] The time interval between the end position of the first time domain resource and the start position of the second time domain resource is less than a second duration; or,

[0164] The time interval between the end position of the second time domain resource and the start position of the first time domain resource is less than a third duration.

[0165] If the first time domain resource is before the second time domain resource, the first downlink transmission is before the first uplink transmission, and the time interval between the end position of the first time domain resource and the starting position of the second time domain resource is less than the second duration, it can be considered that the time interval between the first downlink transmission and the first uplink transmission is less than the transition time from receiving to sending, and the terminal device does not have enough time to transition from receiving to sending.

[0166] In one example, as shown in Figure 12, the first time domain resource is the downlink time slot n+3 of the terminal device, and TA is 4.9 time slots, and the second time slot resource is the uplink time slot n+9 of the terminal device (overlapping with the downlink time slots n+3.1 to n+4.1 of the terminal device). The time interval T1 between the end position of the first time domain resource and the start position of the second time domain resource is 0.1 time slot. If 0.1 time slot is less than the second time length, it is considered that the first downlink transmission collides with the first uplink transmission. If 0.1 time slot is greater than or equal to the second time length, it is considered that the first downlink transmission does not collide with the first uplink transmission.

[0167] If the second time domain resource is before the first time domain resource, the first downlink transmission is after the first uplink transmission, and the time interval between the end position of the second time domain resource and the starting position of the first time domain resource is less than the third time length, it can be considered that the time interval between the first uplink transmission and the first downlink transmission is less than the transition time from sending to receiving, and the terminal device does not have enough time to transition from sending to receiving.

[0168] In one example, as shown in Figure 13, the first time domain resource is the downlink time slot n+3 of the terminal device, and TA is 4.1 time slots, and the second time slot resource is the uplink time slot n+6 of the terminal device (overlapping with the downlink time slots n+1.9 to n+2.9 of the terminal device). The time interval T2 between the end position of the second time domain resource and the start position of the first time domain resource is 0.1 time slot. If 0.1 time slot is less than the third time length, it is considered that the first downlink transmission collides with the first uplink transmission. If 0.1 time slot is greater than or equal to the third time length, it is considered that the first downlink transmission does not collide with the first uplink transmission.

[0169] In some embodiments, the second duration is the length of the transition time from receiving to sending; and / or,

[0170] The third duration is the length of the transition time from sending to receiving.

[0171] Optionally, the second duration is 25600*Tc or 13792*Tc. For example, when the serving cell operating frequency band is FR1, the second duration is 25600*Tc; when the serving cell operating frequency band is FR2, the second duration is 13792*Tc.

[0172] Optionally, the length of the third duration is 25600*Tc or 13792*Tc. For example, when the serving cell operating frequency band is FR1, the length of the third duration is 25600*Tc; when the serving cell operating frequency band is FR2, the length of the third duration is 13792*Tc.

[0173] In some embodiments, the length of the second duration is the same as the length of the third duration.

[0174] In an embodiment of the present application, when the first downlink transmission is a dynamically scheduled downlink transmission, the time domain resources occupied by the first DCI that schedules the first downlink transmission may be referred to as fourth time domain resources. For the terminal, the fourth time domain resources are used for the first DCI transmission, and for the network device, the fourth time domain resources are the time domain resources for the terminal device to receive the first DCI. As an example, the fourth time domain resources include the time domain resources occupied by the control resource set (Control-resource set, CORESET) that detects the first DCI, and the end position of the fourth time domain resources includes the last symbol of the CORESET carrying the first DCI.

[0175] In an embodiment of the present application, the first downlink transmission belongs to one of the following: downlink transmission scheduled by the first DCI; downlink transmission with semi-static configuration; SSB.

[0176] In some embodiments, the downlink transmission scheduled by the first DCI includes at least one of the following situations:

[0177] Physical downlink shared channel PDSCH scheduled in DCI format;

[0178] Channel State Indicator Reference Signal CSI-RS scheduled in DCI format.

[0179] In some embodiments, the semi-statically configured downlink transmission includes at least one of the following situations:

[0180] Physical downlink control channel PDCCH configured by higher layers;

[0181] PDSCH configured by higher layers;

[0182] CSI-RS configured by higher layers;

[0183] Downlink Positioning Reference Channel (DL PRS) configured by higher layers.

[0184] In some embodiments, the PDCCH configured by higher layers includes a PDCCH configured by dedicated higher layer parameters and / or a PDCCH in a Type-0 / 0A / 1 / 2-PDCCH CSS configured by common higher layer parameters.

[0185] In the embodiment of the present application, the first uplink transmission belongs to one of the following: uplink transmission scheduled by the second DCI; uplink transmission configured semi-statically; uplink transmission on a random access channel transmission opportunity RO.

[0186] In some embodiments, the uplink transmission scheduled by the second DCI includes at least one of the following situations:

[0187] Physical uplink shared channel PUSCH scheduled in DCI format;

[0188] Physical uplink control channel PUCCH scheduled in DCI format;

[0189] Physical random access channel PRACH scheduled in DCI format;

[0190] Sounding Reference Signal (SRS) scheduled in DCI format.

[0191] In some embodiments, the semi-statically configured uplink transmission includes at least one of the following situations:

[0192] SRS configured at high level;

[0193] PUCCH configured by higher layers;

[0194] PUSCH configured by higher layers.

[0195] In some embodiments, the uplink transmission on the random access channel transmission opportunity RO may be an uplink transmission on a valid RO.

[0196] In the embodiment of the present application, the terminal device determines, based on the first time domain resource and the second time domain resource, that the first downlink transmission and the first uplink transmission collide in the time domain, including one of the following situations:

[0197] Case A: The downlink transmission scheduled by the first DCI collides with the uplink transmission scheduled by the second DCI after considering the impact of TA in the time domain;

[0198] Case B: The downlink transmission of the semi-static configuration collides with the uplink transmission of the semi-static configuration after considering the impact of TA in the time domain;

[0199] Case C: The downlink transmission scheduled by the first DCI collides with the uplink transmission configured semi-statically after considering the impact of TA in the time domain;

[0200] Case D: The semi-statically configured downlink transmission collides with the uplink transmission scheduled by the second DCI after considering the impact of TA in the time domain;

[0201] Case E: The synchronization signal block (SSB) collides with the second DCI-scheduled uplink transmission or the semi-statically configured uplink transmission in the time domain after considering the impact of the TA.

[0202] Case F: The downlink transmission scheduled by the first DCI or the downlink transmission configured semi-statically collides with the uplink transmission on the random access channel transmission opportunity RO after the influence of TA is considered in the time domain.

[0203] Optionally, for case A, the dynamically scheduled downlink transmission includes at least one of a PDSCH and a CSI-RS scheduled in a DCI format. The dynamically scheduled uplink transmission includes at least one of a PUSCH, a PUCCH, a PRACH, and an SRS scheduled in a DCI format.

[0204] Optionally, for case B, the semi-statically configured downlink transmission includes at least one of the PDCCH, PDSCH, CSI-RS, and DL PRS configured by the higher layer. Optionally, the PDCCH configured by the higher layer includes a PDCCH configured by dedicated higher layer parameters and / or a PDCCH in a Type-0 / 0A / 1 / 2-PDCCH CSS configured by common higher layer parameters. The semi-statically configured uplink transmission includes at least one of the SRS, PUCCH, and PUSCH configured by the higher layer.

[0205] Optionally, for case C, the dynamically scheduled downlink transmission includes at least one of a PDSCH and a CSI-RS scheduled in a DCI format. The semi-statically configured uplink transmission includes at least one of an SRS, a PUCCH, and a PUSCH configured by a higher layer.

[0206] Optionally, for case D, the semi-statically configured downlink transmission includes at least one of the PDCCH, PDSCH, CSI-RS, and DL PRS configured by the higher layer. Optionally, the PDCCH configured by the higher layer includes a PDCCH configured by dedicated higher layer parameters and / or a PDCCH in a Type-0 / 0A / 1 / 2-PDCCH CSS configured by common higher layer parameters. The dynamically scheduled uplink transmission includes at least one of the PUSCH, PUCCH, PRACH, and SRS scheduled by the DCI format.

[0207] Optionally, for case E, the dynamically scheduled or semi-statically configured uplink transmission includes at least one of PUSCH, PUCCH, SRS, and PRACH scheduled in DCI format.

[0208] Optionally, for case F, the uplink transmission on the RO is the uplink transmission on the valid RO.

[0209] Optionally, the uplink transmission on the valid RO includes a PRACH or MsgA PUSCH triggered by a higher layer. The dynamically scheduled or semi-statically configured downlink transmission includes at least one of PDCCH, PDSCH, CSI-RS, DL PRS and SSB.

[0210] In the embodiment of the present application, for each of the above situations, at least one of collision mode 1 and collision mode 2 is included.

[0211] When the terminal device does not support simultaneous transmission and reception, as shown in FIG9 , the downlink symbols overlap with the uplink transmission of the terminal device. If the terminal device is scheduled for downlink transmission on these downlink symbols, the terminal device needs to have a clear rule to regulate the behavior of the terminal device.

[0212] One implementation involves network devices scheduling to avoid collisions between uplink and downlink transmissions of terminal devices. For example, in a TN network, a terminal device does not expect a collision between a dynamically scheduled downlink transmission and a dynamically scheduled uplink transmission. If such a collision occurs, the terminal device will interpret it as an incorrect scheduling situation, for example, performing neither downlink nor uplink transmission. However, in an NR-NTN network, due to the significant signal transmission delay, the impact of the terminal device's TA is not negligible, making it more difficult for network devices to schedule to avoid collisions between uplink and downlink transmissions of terminal devices.

[0213] In an embodiment of the present application, when a first time domain resource collides with a second time domain resource after taking TA into consideration, the terminal device communicates in a target manner.

[0214] The following describes different collision modes and the processing behaviors of the terminal device in different situations.

[0215] Collision method 1. Case A

[0216] In some embodiments, the terminal device communicates in a target-based manner, including:

[0217] Mode 1-1: the terminal device sends the first uplink transmission on the third time domain resource; and / or the terminal device does not receive the first downlink transmission on the third time domain resource.

[0218] Here, it can be considered that the priority of uplink transmission is higher than the priority of downlink transmission.

[0219] For method 1-1, if the terminal device receives dynamic scheduling of downlink transmission and dynamic scheduling of uplink transmission, where the time domain resources occupied by the uplink transmission after considering the influence of TA partially overlap or completely overlap with the time domain resources occupied by the downlink transmission, and the third time domain resources include the overlapping part, then the terminal device sends the dynamically scheduled uplink transmission on the third time domain resources, and / or the terminal device does not receive the dynamically scheduled downlink transmission on the third time domain resources.

[0220] In one example, if a terminal device detects a first DCI for scheduling reception of a first downlink transmission on a first group of symbols, and the terminal device detects a second DCI for scheduling transmission of a first uplink transmission, and the first uplink transmission overlaps with at least one symbol in the first group of symbols after considering the impact of TA, then the terminal device sends the first uplink transmission on the overlapping symbol, and / or the terminal device does not receive the first downlink transmission on the overlapping symbol.

[0221] In some embodiments, the terminal device communicates in a target-based manner, including one of the following situations:

[0222] Mode 1-2: the terminal device does not send the first uplink transmission on the third time domain resource, and / or the terminal device receives the first downlink transmission on the third time domain resource;

[0223] Mode 1-3: When the time interval between the end position of the fourth time domain resource and the starting position of the second time domain resource is less than the first duration, the terminal device sends the first uplink transmission on the third time domain resource, and / or the terminal device does not receive the first downlink transmission on the third time domain resource;

[0224] Mode 1-4: When the time interval between the end position of the fourth time domain resource and the starting position of the second time domain resource is greater than or equal to the first duration, the terminal device does not send the first uplink transmission on the third time domain resource, and / or the terminal device receives the first downlink transmission on the third time domain resource;

[0225] Mode 1-5: When the time interval between the end position of the fourth time domain resource and the starting position of the third time domain resource is less than the first duration, the terminal device sends the first uplink transmission on the third time domain resource, and / or the terminal device does not receive the first downlink transmission on the third time domain resource;

[0226] Mode 1-6: When the time interval between the end position of the fourth time domain resource and the starting position of the third time domain resource is greater than or equal to the first duration, the terminal device does not send the first uplink transmission on the third time domain resource, and / or the terminal device receives the first downlink transmission on the third time domain resource.

[0227] For method 1-2, if the terminal device receives dynamic scheduling of downlink transmission and dynamic scheduling of uplink transmission, where the time domain resources occupied by the uplink transmission after considering the influence of TA partially overlap or completely overlap with the time domain resources occupied by the downlink transmission, and the third time domain resources include the overlapping part, then the terminal device receives the dynamically scheduled downlink transmission on the third time domain resources, and / or the terminal device does not send the dynamically scheduled uplink transmission on the third time domain resources.

[0228] In mode 1-2, it can be considered that the priority of downlink transmission is higher than the priority of uplink transmission.

[0229] In one example, if a terminal device detects a first DCI for scheduling reception of a first downlink transmission on a first group of symbols, and the terminal device detects a second DCI for scheduling transmission of a first uplink transmission, and the first uplink transmission overlaps with at least one symbol in the first group of symbols after considering the impact of TA, then the terminal device does not send the first uplink transmission on the overlapping symbol, and / or the terminal device receives the first downlink transmission on the overlapping symbol.

[0230] Optionally, for mode 1-3 or mode 1-4, the end position of the fourth time domain resource may be the position of the last symbol of the CORESET where the first DCI is detected, and the starting position of the second time domain resource may be the first symbol of the second time domain resource.

[0231] In one example, if a terminal device receives dynamic scheduling of downlink transmission and dynamic scheduling of uplink transmission, wherein the time domain resources occupied by the uplink transmission after considering the influence of TA partially overlap or completely overlap with the time domain resources occupied by the downlink transmission, and the third time domain resources include the overlapping part, then if the last symbol of the CORESET of the first DCI relative to the detection of the dynamically scheduled downlink transmission, the first symbol used to transmit the dynamically scheduled uplink transmission after considering the influence of TA is within the first time length, then the terminal device sends the dynamically scheduled uplink transmission on the third time domain resource, and / or the terminal device does not receive the dynamically scheduled downlink transmission on the third time domain resource; otherwise, the terminal device does not send the dynamically scheduled uplink transmission on the third time domain resource, and / or the terminal device receives the dynamically scheduled downlink transmission on the third time domain resource.

[0232] Here, it can be considered that under normal circumstances, the priority of downlink transmission is greater than the priority of uplink transmission. If the time interval between the end position of the fourth time domain resource and the start position of the second time domain resource is less than the first duration, it can be considered that the terminal device has begun to prepare for uplink transmission, then the priority of uplink transmission is higher than the priority of downlink transmission, uplink transmission cannot be canceled, and the terminal device sends uplink transmission on the third time domain resource; otherwise, under normal circumstances, the priority of downlink transmission is higher than the priority of uplink transmission, uplink transmission is allowed to be canceled, and the terminal device receives downlink transmission on the third time domain resource.

[0233] In the embodiment of the present application, optionally, the first duration is determined according to the processing time of the uplink channel transmission. For example, the first duration is T proc,2 Processing time, T proc,2 The processing time is determined based on at least one of the following: PUSCH preparation time (also known as N2 processing time or N2), the subcarrier spacing configuration of the PDCCH scheduling uplink transmission, the subcarrier spacing configuration of the uplink transmission, the bandwidth part (BWP) switching time, and whether the first symbol in the uplink transmission is used only for the transmission of the demodulation reference signal (DMRS). The N2 processing time is related to the processing capability of the terminal device, and the N2 processing time varies for terminal devices with different processing capabilities.

[0234] In one example, if a terminal device detects a second DCI for scheduling an uplink transmission and detects a first DCI for scheduling a downlink transmission, the uplink transmission occupies a first group of symbols after considering the influence of TA, and the first group of symbols overlaps with at least one symbol in the time domain resources occupied by the downlink transmission. When the time distance between the first symbol in the first group of symbols and the last symbol of the control resource set CORESET in which the first DCI format is detected is less than a first duration, the terminal device sends the first uplink transmission on the overlapping symbol, and / or the terminal device does not receive the first downlink transmission on the overlapping symbol; or, when the time distance between the first symbol in the first group of symbols and the last symbol of the CORESET in which the first DCI format is detected is greater than or equal to the first duration, the terminal device does not send the first uplink transmission on the overlapping symbol, and / or the terminal device receives the first downlink transmission on the overlapping symbol.

[0235] As an example, if a terminal device detects a second DCI format scheduled to send a first uplink transmission on a first group of symbols after considering the impact of TA, and the terminal device detects a first DCI format scheduled to receive a first downlink transmission, the first downlink transmission overlaps with at least one symbol in the first group of symbols, when the time distance between the first symbol in the first group of symbols and the last symbol of the control resource set CORESET in which the first DCI format is detected is less than a first duration, the terminal device sends the first uplink transmission, and / or the terminal device does not receive the first downlink transmission; or, when the time distance between the first symbol in the first group of symbols and the last symbol of the CORESET in which the first DCI format is detected is greater than or equal to the first duration, the terminal device does not send the first uplink transmission, and / or the terminal device receives the first downlink transmission.

[0236] Figure 14 shows a schematic diagram of this example. In Figure 14, the second DCI in time slot n schedules the terminal device to send the first uplink transmission via the symbol in time slot n+7, and the first DCI in time slot n+1 schedules the terminal device to receive the first downlink transmission via the symbol in time slot n+3. The first group of symbols includes the symbols in time slot n+7 after considering the TA effect, that is, the first group of symbols includes the symbols in the uplink time slot n+7 of the terminal device. When the time distance T6 between the last symbol of the CORESET carrying the first DCI and the first symbol in the uplink time slot n+7 of the terminal device is less than the first duration, the terminal device does not cancel the first uplink transmission; otherwise, the terminal device cancels the first uplink transmission.

[0237] In the embodiment of the present application, the terminal device sending the first uplink transmission on the third time domain resource can be understood as one of the following:

[0238] The terminal device does not cancel the first uplink transmission on the second time domain resource;

[0239] The terminal device does not cancel the first uplink transmission on the third time domain resource;

[0240] The terminal device does not cancel the first uplink transmission on a fifth time domain resource in the third time domain resource, where a time unit in the fifth time domain resource is less than the first duration from an end position of the fourth time domain resource;

[0241] When the terminal device does not cancel the first uplink transmission on the fifth time domain resource in the third time domain resource, the terminal device cancels the first uplink transmission on the sixth time domain resource in the third time domain resource, and the time unit in the sixth time domain resource is greater than the first time length from the end position of the fourth time domain resource.

[0242] In one example, as shown in Figure 15, the time interval T3 between the last symbol of the fourth time domain resource used by the first DCI in the downlink time domain resources of the terminal device and the first symbol of the second time domain resource in the uplink time domain resources of the terminal device (the uplink time slot n+7 of the terminal device) is less than the first time length, and the terminal device sends an uplink transmission on the third time domain resource (the overlapping part of the downlink time slot n+3 of the terminal device and the uplink time slot n+7 of the terminal device), or does not receive a downlink transmission.

[0243] In another example, as shown in Figure 16, the time interval T3 between the last symbol of the fourth time domain resource occupied by the first DCI in the downlink time domain resource of the terminal device and the first symbol of the second time domain resource in the uplink (the uplink time slot n+7 of the terminal device) is less than the first time length, and the third time domain resource is the overlapping part of the downlink time slot n+3 of the terminal device and the uplink time slot n+7 of the terminal device, wherein the time interval T4 between a symbol in the third time domain resource and the end position of the fourth time domain resource is the first time length, then the time domain area before the symbol in the third time domain resource is the fifth time domain resource, and the time domain interval after the symbol in the third time domain resource is the sixth time domain resource, the time interval between the symbol in the fifth time domain resource and the end position of the fourth time domain resource is less than the first time length, and the time interval between the symbol of the sixth time domain resource and the end position of the fourth time domain resource is greater than or equal to the first time length, then the terminal device sends uplink transmission on the fifth time domain resource and receives downlink transmission on the sixth time domain resource.

[0244] In another example, the symbols in the uplink time slot n+7 of the terminal device are used to send the first uplink transmission, the first DCI in the downlink time slot n+1 of the terminal device schedules the terminal device to receive the first downlink transmission through the symbols in the downlink time slot n+3, and the first group of symbols includes symbols after considering the influence of TA, that is, the first group of symbols includes the symbols in the uplink time slot n+7 of the terminal device. When the time distance between the last symbol of the CORESET carrying the first DCI and the first symbol in the uplink time slot n+7 of the terminal device is less than the first duration, the terminal device does not cancel the first uplink transmission; otherwise, the terminal device cancels the first uplink transmission.

[0245] Optionally, if part of symbols in the time domain resources occupied by an uplink channel or signal in the first uplink transmission are cancelled, the uplink channel or signal is cancelled.

[0246] In one example, the first uplink transmission includes an uplink channel or signal. If the terminal device does not send an uplink transmission on the third time domain resource, the terminal device does not send an uplink transmission on the second time domain resource.

[0247] In one example, the first uplink transmission includes three uplink channels or signals. If the terminal device does not send an uplink transmission on the fifth time domain resource, and the time domain resource of channel 2 among the three uplink channels or signals includes a symbol in the fifth time domain resource, the terminal device does not send channel 2.

[0248] For methods 1-5 and 1-6, if the terminal device receives dynamic scheduling of downlink transmission and dynamic scheduling of uplink transmission, wherein the time domain resources occupied by the uplink transmission after considering the influence of TA partially overlap or completely overlap with the time domain resources occupied by the downlink transmission, and the third time domain resources include the overlapping part, then if the first symbol of the third time domain resource is within the first time length relative to the last symbol of the CORESET of the first DCI for detecting the dynamically scheduled downlink transmission, then the terminal device sends the dynamically scheduled uplink transmission on the third time domain resource, and / or the terminal device does not receive the dynamically scheduled downlink transmission on the third time domain resource; otherwise, the terminal device does not send the dynamically scheduled uplink transmission on the third time domain resource, and / or the terminal device receives the dynamically scheduled downlink transmission on the third time domain resource.

[0249] Here, it can be considered that under normal circumstances, the priority of downlink transmission is greater than the priority of uplink transmission. If the time interval between the end position of the fourth time domain resource and the start position of the third time domain resource is less than the first duration, it can be considered that the terminal device has begun to prepare for uplink transmission, then the priority of uplink transmission is higher than the priority of downlink transmission, uplink transmission cannot be canceled, and the terminal device sends uplink transmission on the third time domain resource; otherwise, under normal circumstances, the priority of downlink transmission is higher than the priority of uplink transmission, uplink transmission is allowed to be canceled, and the terminal device receives downlink transmission on the third time domain resource. The priority of downlink transmission is higher than that of uplink transmission. Taking into account the processing time of the terminal device to prepare for uplink transmission, the uplink transmission is allowed to be partially canceled.

[0250] In one example, if a terminal device detects a second DCI scheduling an uplink transmission and detects a first DCI scheduling a first downlink transmission, the uplink transmission occupies a first group of symbols after considering the influence of TA, and the first group of symbols overlaps with at least one symbol in the time domain resources occupied by the downlink transmission. When the time distance between the overlapping symbols in the first group of symbols and the last symbol of the CORESET where the first DCI is detected is less than a first duration, the terminal device sends the first uplink transmission on the overlapping symbols, and / or the terminal device does not receive the first downlink transmission on the overlapping symbols; or, when the time distance between the overlapping symbols in the first group of symbols and the last symbol of the CORESET where the first DCI is detected is greater than or equal to the first duration, the terminal device does not send the first uplink transmission on the overlapping symbols, and / or the terminal device receives the first downlink transmission on the overlapping symbols.

[0251] In one example, as shown in Figure 17, the time interval T5 between the last symbol of the fourth time domain resource used by the first DCI in the downlink of the terminal device and the first symbol of the third time domain resource (the overlapping part of the downlink time slot n+3 of the terminal device and the uplink time slot n+7 of the terminal device) is less than the first time length, and the terminal device sends an uplink transmission on the third time domain resource, or does not receive a downlink transmission; if T5 is greater than the first time length, the terminal device receives a downlink transmission on the third time domain resource.

[0252] In another example, the time interval T5 between the last symbol of the fourth time domain resource used by the first DCI in the downlink of the terminal device and the first symbol of the third time domain resource (the overlapping part of the downlink time slot n+3 of the terminal device and the uplink time slot n+7 of the terminal device) is less than the first time length, the third time domain resource includes the fifth time domain resource and the sixth time domain resource, the time interval between the symbol in the fifth time domain resource and the end position of the fourth time domain resource is less than the first time length, and the time interval between the symbol of the sixth time domain resource and the end position of the fourth time domain resource is greater than or equal to the first time length, then the terminal device sends uplink transmission on the fifth time domain resource and receives downlink transmission on the sixth time domain resource.

[0253] In another example, the symbols in the uplink time slot n+7 of the terminal device after considering the influence of TA are used to send uplink transmission, the first DCI in the downlink time slot n+1 of the terminal device schedules the terminal device to receive the first downlink transmission through the symbols in time slot n+3, the first group of symbols includes the symbols in time slot n+7, that is, the first group of symbols includes the symbols in the uplink time slot n+7 of the terminal device, and the first downlink transmission overlaps with the symbols in the first group of symbols to form overlapping symbols in the downlink time slot n+3 of the terminal device and the uplink time slot n+7 of the terminal device. When the time distance between the last symbol of the CORESET carrying the first DCI and the above-mentioned overlapping symbol is less than the first duration, the terminal device does not cancel the first uplink transmission on the overlapping symbol; otherwise, the terminal device cancels the first uplink transmission on the overlapping symbol.

[0254] Figure 18 gives an example of this situation. In Figure 18, the second DCI in time slot n schedules the terminal device to send the first uplink transmission through the symbol in time slot n+7, and the first DCI in time slot n+1 schedules the terminal device to receive the first downlink transmission through the symbol in time slot n+3. The first group of symbols includes the symbols in time slot n+7 after considering the influence of TA, that is, the first group of symbols includes the symbols in the uplink time slot n+7 of the terminal device, and the first downlink transmission overlaps with the symbols in the first group of symbols to form the overlapping symbols in the downlink time slot n+3 of the terminal device and the uplink time slot n+7 of the terminal device. When the time distance T7 between the last symbol of the CORESET carrying the first DCI and the above-mentioned overlapping symbol is less than the first duration, the terminal device does not cancel the first uplink transmission on the overlapping symbol; otherwise, the terminal device cancels the first uplink transmission on the overlapping symbol.

[0255] In some embodiments, the terminal device communicates in a target-based manner, including:

[0256] Mode 1-7: The terminal device determines whether to send the first uplink transmission or receive the first downlink transmission on the third time domain resource based on the implementation of the terminal device.

[0257] For methods 1-7, if the terminal device receives dynamic scheduling of downlink transmission and dynamic scheduling of uplink transmission, where the time domain resources occupied by the uplink transmission after considering the influence of TA partially overlap or completely overlap with the time domain resources occupied by the downlink transmission, then the terminal device determines based on its own implementation to send the dynamically scheduled uplink transmission or receive the dynamically scheduled downlink transmission on the third time domain resources.

[0258] In methods 1-7, it can be considered that the priority of uplink transmission or downlink transmission is determined by the terminal device itself.

[0259] In one example, if a terminal device detects a second DCI scheduling an uplink transmission and detects a first DCI scheduling a first downlink transmission, the uplink transmission occupies a first group of symbols after considering the influence of TA, and the first downlink transmission overlaps with at least one symbol in the first group of symbols, then the terminal device determines to send the first uplink transmission or receive the first downlink transmission based on its own implementation.

[0260] Collision mode 1, situation B

[0261] In some embodiments, the terminal device communicates in a target-based manner, including one of the following situations:

[0262] Mode 2-1: The terminal device sends the first uplink transmission on the third time domain resource, and / or the terminal device does not receive the first downlink transmission on the third time domain resource;

[0263] Mode 2-2: The terminal device does not send the first uplink transmission on the third time domain resource, and / or the terminal device receives the first downlink transmission on the third time domain resource;

[0264] Mode 2-3: The terminal device determines whether to send the first uplink transmission or receive the first downlink transmission on the third time domain resource based on the implementation of the terminal device.

[0265] For method 2-1, the terminal device is semi-statically configured with downlink transmission and uplink transmission, wherein the time domain resources occupied by the semi-statically configured uplink transmission after considering the influence of TA partially overlap or completely overlap with the time domain resources occupied by the semi-statically configured downlink transmission, and the third time domain resource includes the overlapping part, then the terminal device sends the semi-statically configured uplink transmission on the third time domain resource, and / or the terminal device does not receive the semi-statically configured downlink transmission on the third time domain resource.

[0266] In mode 2-1, it can be considered that the priority of uplink transmission is higher than the priority of downlink transmission.

[0267] In one example, if a terminal device is configured by high-level parameters to receive a first downlink transmission on a first group of symbols, and the terminal device is configured by high-level parameters to send a first uplink transmission, the first uplink transmission overlaps with at least one symbol in the first group of symbols after considering the impact of TA, the terminal device sends the first uplink transmission on the overlapping symbol, and / or the terminal device does not receive the first downlink transmission on the overlapping symbol.

[0268] For method 2-2, if the terminal device is semi-statically configured with downlink transmission and uplink transmission, wherein the time domain resources occupied by the semi-statically configured uplink transmission after considering the influence of TA partially overlap or completely overlap with the time domain resources occupied by the semi-statically configured downlink transmission, and the third time domain resources include the overlapping part, then the terminal device does not send the semi-statically configured uplink transmission on the third time domain resources, and / or the terminal device receives the semi-statically configured downlink transmission on the third time domain resources.

[0269] In mode 2-2, it can be considered that the priority of downlink transmission is higher than the priority of uplink transmission.

[0270] In one example, if a terminal device is configured by high-level parameters to receive a first downlink transmission on a first group of symbols, and the terminal device is configured by high-level parameters to send a first uplink transmission, the first uplink transmission overlaps with at least one symbol in the first group of symbols after considering the impact of TA, the terminal device does not send the first uplink transmission on the overlapping symbol, and / or the terminal device receives the first downlink transmission on the overlapping symbol.

[0271] For method 2-3, if the terminal device is semi-statically configured with downlink transmission and uplink transmission, where the time domain resources occupied by the semi-statically configured uplink transmission after considering the influence of TA partially overlap or completely overlap with the time domain resources occupied by the semi-statically configured downlink transmission, and the third time domain resources include the overlapping part, then the terminal device determines based on its own implementation to send the semi-statically configured uplink transmission or receive the semi-statically configured downlink transmission on the third time domain resources.

[0272] In mode 2-3, it can be considered that the priority of uplink transmission or downlink transmission is determined by the terminal device itself.

[0273] In one example, if a terminal device is configured by high-level parameters to receive a first downlink transmission on a first group of symbols, and the terminal device is configured by high-level parameters to send a first uplink transmission, and the first uplink transmission overlaps with at least one symbol in the first group of symbols after considering the impact of TA, then the terminal device determines based on its own implementation whether to send the first uplink transmission or receive the first downlink transmission on the overlapping symbol.

[0274] Collision mode 1: Case C

[0275] In some embodiments, the terminal device communicates in a target-based manner, including one of the following situations:

[0276] Mode 3-1: The terminal device does not send the first uplink transmission on the third time domain resource, and / or the terminal device receives the first downlink transmission on the third time domain resource;

[0277] Mode 3-2: When the time interval between the end position of the fourth time domain resource and the starting position of the second time domain resource is less than the first duration, the terminal device sends the first uplink transmission on the third time domain resource, and / or the terminal device does not receive the first downlink transmission on the third time domain resource;

[0278] Mode 3-3: When the time interval between the end position of the fourth time domain resource and the starting position of the second time domain resource is greater than or equal to the first duration, the terminal device does not send the first uplink transmission on the third time domain resource, and / or the terminal device receives the first downlink transmission on the third time domain resource;

[0279] Mode 3-4: When the time interval between the end position of the fourth time domain resource and the starting position of the third time domain resource is less than the first duration, the terminal device sends the first uplink transmission on the third time domain resource, and / or the terminal device does not receive the first downlink transmission on the third time domain resource;

[0280] Mode 3-5: When the time interval between the end position of the fourth time domain resource and the starting position of the third time domain resource is greater than or equal to the first duration, the terminal device does not send the first uplink transmission on the third time domain resource, and / or the terminal device receives the first downlink transmission on the third time domain resource.

[0281] For method 3-1, if the terminal device receives dynamic scheduling of downlink transmission and the terminal device is semi-statically configured for uplink transmission, wherein the time domain resources occupied by the semi-statically configured uplink transmission after considering the influence of TA partially overlap or completely overlap with the time domain resources occupied by the dynamically scheduled downlink transmission, and the third time domain resources include the overlapping part, then the terminal device does not send the semi-statically configured uplink transmission on the third time domain resources, and / or the terminal device receives the dynamically scheduled downlink transmission on the third time domain resources.

[0282] In mode 3-1, it can be considered that the priority of downlink transmission is higher than the priority of uplink transmission.

[0283] In one example, if a terminal device detects a first DCI format for scheduling reception of a first downlink transmission on a first group of symbols, and the terminal device is configured by high-level parameters to send a first uplink transmission, the first uplink transmission overlaps with at least one symbol in the first group of symbols after considering the impact of TA, the terminal device does not send the first uplink transmission on the overlapping symbol, and / or the terminal device receives the first downlink transmission on the overlapping symbol.

[0284] For mode 3-2 and mode 3-3, the terminal device receives dynamic scheduling of downlink transmission and the terminal device is semi-statically configured for uplink transmission, wherein the time domain resources occupied by the semi-statically configured uplink transmission after considering the influence of TA partially overlap or completely overlap with the time domain resources occupied by the dynamically scheduled downlink transmission, and the third time domain resources include the overlapping part, then if the last symbol of the CORESET relative to the first DCI for detecting the dynamically scheduled downlink transmission, the first symbol for transmitting the semi-statically configured uplink transmission after considering the influence of TA is within the first time length, then the terminal device sends the semi-statically configured uplink transmission on the third time domain resource, and / or the terminal device does not receive the dynamically scheduled downlink transmission on the third time domain resource; otherwise, the terminal device does not send the statically scheduled uplink transmission on the third time domain resource, and / or the terminal device receives the dynamically scheduled downlink transmission on the third time domain resource.

[0285] Here, it can be considered that under normal circumstances, the priority of downlink transmission is greater than the priority of uplink transmission. If the time interval between the end position of the fourth time domain resource and the start position of the second time domain resource is less than the first duration, it can be considered that the terminal device has begun to prepare for uplink transmission, then the priority of uplink transmission is higher than the priority of downlink transmission, uplink transmission cannot be canceled, and the terminal device sends uplink transmission on the third time domain resource; otherwise, under normal circumstances, the priority of downlink transmission is higher than the priority of uplink transmission, uplink transmission is allowed to be canceled, and the terminal device receives downlink transmission on the third time domain resource.

[0286] For mode 3-4 and mode 3-5, the terminal device receives dynamic scheduling of downlink transmission and the terminal device is semi-statically configured for uplink transmission, wherein the time domain resources occupied by the semi-statically configured uplink transmission after considering the influence of TA partially overlap or completely overlap with the time domain resources occupied by the dynamically scheduled downlink transmission, and the third time domain resources include the overlapping part, then if the first symbol of the third time domain resource is within the first time length relative to the last symbol of the CORESET of the first DCI for detecting the dynamically scheduled downlink transmission, then the terminal device sends the semi-statically configured uplink transmission on the third time domain resource, and / or the terminal device does not receive the dynamically scheduled downlink transmission on the third time domain resource; otherwise, the terminal device does not send the semi-statically configured uplink transmission on the third time domain resource, and / or the terminal device receives the dynamically scheduled downlink transmission on the third time domain resource.

[0287] Here, it can be considered that under normal circumstances, the priority of downlink transmission is greater than the priority of uplink transmission. If the time interval between the end position of the fourth time domain resource and the start position of the third time domain resource is less than the first duration, it can be considered that the terminal device has begun to prepare for uplink transmission, then the priority of uplink transmission is higher than the priority of downlink transmission, uplink transmission cannot be canceled, and the terminal device sends uplink transmission on the third time domain resource; otherwise, under normal circumstances, the priority of downlink transmission is higher than the priority of uplink transmission, uplink transmission is allowed to be canceled, and the terminal device receives downlink transmission on the third time domain resource.

[0288] Collision mode 1: Situation D

[0289] In some embodiments, the terminal device communicates in a target-based manner, including:

[0290] Mode 4-1: the terminal device sends the first uplink transmission on the third time domain resource; and / or the terminal device does not receive the first downlink transmission on the third time domain resource.

[0291] For method 4-1, if the terminal device is semi-statically configured for downlink transmission and the terminal device receives dynamic scheduling of uplink transmission, wherein the time domain resources occupied by the uplink transmission after considering the influence of TA partially overlap or completely overlap with the time domain resources occupied by the semi-statically configured downlink transmission, and the third time domain resources include the overlapping part, then the terminal device sends the dynamically scheduled uplink transmission on the third time domain resources, and / or the terminal device does not receive the semi-statically configured downlink transmission on the third time domain resources.

[0292] In mode 4-1, it can be considered that the priority of uplink transmission is higher than the priority of downlink transmission.

[0293] In one example, if a terminal device is configured by high-level parameters to receive a first downlink transmission on a first group of symbols, and the terminal device detects a second DCI that schedules the sending of a first uplink transmission, and the first uplink transmission overlaps with at least one symbol in the first group of symbols after considering the impact of TA, then the terminal device sends the first uplink transmission on the overlapping symbol, and / or the terminal device does not receive the first downlink transmission on the overlapping symbol.

[0294] In some embodiments, if the terminal device is semi-statically configured for downlink transmission, and the terminal device does not receive any dynamic scheduling of an uplink transmission whose time domain resources occupied after considering the influence of the timing advance TA partially overlap or completely overlap with the time domain resources occupied by the semi-statically configured downlink transmission, then the terminal device receives the semi-statically configured downlink transmission.

[0295] As an example, if a terminal device is configured by high-level parameters to receive a first downlink transmission on a first group of symbols, and the terminal device does not detect a DCI format that schedules an uplink transmission that overlaps with at least one symbol in the first group of symbols after considering the TA effect, then the terminal device receives the first downlink transmission.

[0296] Collision mode 1: Case E

[0297] In some embodiments, the terminal device communicates in a target-based manner, including:

[0298] Mode 5-1: The terminal device does not send the first uplink transmission on the third time domain resource; and / or, the terminal device receives the first downlink transmission on the third time domain resource.

[0299] For method 5-1, if the terminal device is instructed to transmit SSB, and the terminal device is semi-statically configured for uplink transmission or receives dynamic scheduling of uplink transmission, wherein the time domain resources occupied by the dynamically scheduled or semi-statically configured uplink transmission after considering the influence of TA partially overlap or completely overlap with the time domain resources occupied by the SSB transmission, and the third time domain resource includes the overlapping part, then the terminal device does not send the dynamically scheduled or semi-statically configured uplink transmission on the third time domain resource, and / or the terminal device receives SSB on the third time domain resource.

[0300] In mode 5-1, it can be considered that the priority of SSB is higher than the priority of uplink transmission.

[0301] Collision mode 1: Case F

[0302] In some embodiments, in case F, uplink transmission on the RO may refer to uplink transmission on a valid RO.

[0303] In some embodiments, the terminal device communicates in a target-based manner, including one of the following situations:

[0304] Mode 6-1: The terminal device sends the first uplink transmission on the third time domain resource, and / or the terminal device does not receive the first downlink transmission on the third time domain resource;

[0305] Mode 6-2: The terminal device does not send the first uplink transmission on the third time domain resource, and / or the terminal device receives the first downlink transmission on the third time domain resource;

[0306] Mode 6-3: The terminal device determines whether to send the first uplink transmission or receive the first downlink transmission on the third time domain resource based on the implementation of the terminal device.

[0307] For method 6-1, if the terminal device is semi-statically configured for downlink transmission or receives dynamic scheduling of downlink transmission, and the terminal device is triggered by the higher layer to transmit uplink on the valid RO, wherein the time domain resources occupied by the dynamically scheduled or semi-statically configured downlink transmission partially overlap or completely overlap with the time domain resources occupied by the uplink transmission on the valid RO after considering the influence of TA, and the third time domain resource includes the overlapping part, then the terminal device sends the uplink transmission on the valid RO on the third time domain resource, and / or the terminal device does not receive the dynamically scheduled or semi-statically configured downlink transmission on the third time domain resource.

[0308] In mode 6-1, it can be considered that the priority of uplink transmission on RO is higher than the priority of downlink transmission.

[0309] In one example, if a terminal device is triggered by a higher layer to send a first uplink transmission on a first group of symbols after taking into account the influence of TA, and the terminal device is dynamically scheduled or semi-statically configured to receive a first downlink transmission, and the first downlink transmission overlaps with at least one symbol in the first group of symbols, then the terminal device sends an uplink transmission on a valid RO on the overlapping symbol, and / or the terminal device does not receive a dynamically scheduled or semi-statically configured downlink transmission on the overlapping symbol.

[0310] For method 6-2, if the terminal device is semi-statically configured for downlink transmission or receives dynamic scheduling of downlink transmission, and the terminal device is triggered by the higher layer to perform uplink transmission on the valid RO, wherein the time domain resources occupied by the dynamically scheduled or semi-statically configured downlink transmission partially overlap or completely overlap with the time domain resources occupied by the uplink transmission on the valid RO after considering the influence of TA, and the third time domain resources include the overlapping part, then the terminal device does not send the uplink transmission on the valid RO on the third time domain resources, and / or the terminal device receives the dynamically scheduled or semi-statically configured downlink transmission on the third time domain resources.

[0311] In mode 6-2, it can be considered that the priority of downlink transmission is higher than the priority of uplink transmission on RO.

[0312] In one example, if a terminal device is triggered by a higher layer to send a first uplink transmission on a first group of symbols after taking into account the influence of TA, and the terminal device is dynamically scheduled or semi-statically configured to receive a first downlink transmission, and the first downlink transmission overlaps with at least one symbol in the first group of symbols, then the terminal device does not send an uplink transmission on a valid RO on the overlapping symbol, and / or the terminal device receives a dynamically scheduled or semi-statically configured downlink transmission on the overlapping symbol.

[0313] For method 6-3, if the terminal device is semi-statically configured for downlink transmission or receives dynamic scheduling for downlink transmission, and the terminal device is triggered by the higher layer to transmit uplink on a valid RO, where the time domain resources occupied by the dynamically scheduled or semi-statically configured downlink transmission partially or completely overlap with the time domain resources occupied by the uplink transmission on the valid RO after considering the influence of the TA, then the terminal device determines based on its own implementation to send the uplink transmission on the valid RO or receive the dynamically scheduled or semi-statically configured downlink transmission.

[0314] In some embodiments, in the case of collision mode 1, the terminal device does not receive the first downlink transmission on the third time domain resource, including:

[0315] The terminal device does not receive the first downlink transmission on the first time domain resource; or,

[0316] The terminal device does not receive the symbol located on the third time domain resource in the first downlink transmission; or,

[0317] The terminal device does not receive the downlink channel or signal including the third time domain resource in the first downlink transmission.

[0318] Optionally, the terminal device does not receive the first downlink transmission on the first time domain resource, including: the terminal device does not receive the first downlink transmission on the first group of symbols used for the first downlink transmission.

[0319] Taking the example that the terminal device does not receive the symbols located on the third time domain resources in the first downlink transmission, the terminal device does not receive the first downlink transmission on the symbols overlapping with the first uplink transmission in the first group of symbols used for the first downlink transmission.

[0320] In one example, the first downlink transmission includes 4 symbols, wherein the 3rd and 4th symbols are symbols on the third time domain resource. The terminal device does not receive the 3rd and 4th symbols but still receives the 1st and 4th symbols.

[0321] Taking the example of the terminal device not receiving the downlink channel or signal including the third time domain resource in the first downlink transmission, the terminal device does not receive the channel or signal including any symbol in the first group of symbols for the first downlink transmission in the first downlink transmission, or the terminal device does not receive the channel or signal including the symbol in the first group of symbols overlapping with the first uplink transmission in the first downlink transmission

[0322] In one example, the first downlink transmission includes 4 channels, wherein the time domain resources of the 3rd channel include the third time domain resources, then the terminal device does not receive the 3rd channel, but receives the 1st, 2nd and 4th channels.

[0323] In one example, the first downlink transmission includes 4 PDSCHs, wherein the third PDSCH includes any symbol in the first group of symbols, then the terminal device does not receive the third PDSCH among the 4 PDSCHs.

[0324] In one example, the first downlink transmission includes 4 PDSCHs, wherein the third PDSCH includes symbols in the first group of symbols that overlap with the first uplink transmission, then the terminal device does not receive the third PDSCH among the 4 PDSCHs.

[0325] In some embodiments, in the case of collision mode 1, the terminal device does not send the first uplink transmission on the third time domain resource, including:

[0326] The terminal device does not send the first uplink transmission on the second time domain resource; or,

[0327] The terminal device does not send the symbol located on the third time domain resource in the first uplink transmission; or,

[0328] The terminal device does not send the uplink channel or signal including the third time domain resource in the first uplink transmission.

[0329] Taking the example that the terminal device does not send the symbol located on the third time domain resource in the first uplink transmission, the terminal device does not send the first uplink transmission on the symbol overlapping with the first downlink transmission.

[0330] In one example, the first uplink transmission includes 4 symbols, wherein the 3rd and 4th symbols are symbols on the third time domain resource. The terminal device does not send the 3rd and 4th symbols but still sends the 1st and 2nd symbols.

[0331] In one example, the first uplink transmission includes 4 SRS symbols, wherein the 3rd and 4th SRS symbols are symbols overlapping with the first downlink transmission. Then the terminal device does not send the 3rd and 4th SRS symbols, but still sends the 1st and 2nd SRS symbols.

[0332] Taking the example that the terminal device does not send the uplink channel or signal including the third time domain resource in the first uplink transmission, the terminal device does not send the channel or signal including any symbol in the first group of symbols in the first uplink transmission.

[0333] In one example, the first uplink transmission includes 4 channels, wherein the time domain resources of the 3rd channel include the third time domain resources, then the terminal device does not send the 3rd channel, but sends the 1st, 2nd and 4th channels.

[0334] In one example, the first uplink transmission includes 4 PUSCHs, wherein the third PUSCH includes any symbol in the first group of symbols, then the terminal device does not send the third PUSCH among the 4 PUSCHs.

[0335] Optionally, in all embodiments of the present application, the terminal device does not send an uplink transmission, including: the terminal device cancels the uplink transmission. For example, the terminal device does not send a dynamically scheduled uplink transmission, which can be replaced by: the terminal device cancels the dynamically scheduled uplink transmission. For another example, the terminal device does not send a semi-statically configured uplink transmission, which can be replaced by: the terminal device cancels the semi-statically configured uplink transmission. Optionally, the terminal device cancels the uplink transmission, including: the terminal device no longer prepares the uplink transmission.

[0336] Optionally, in all embodiments of the present application, the terminal device sends the first uplink transmission, including: the terminal device does not cancel sending the first uplink transmission; or, the terminal device does not expect to cancel sending the first uplink transmission.

[0337] Collision Mode 2: Case A

[0338] In some embodiments, the terminal device communicates in a target-based manner, including one of the following situations:

[0339] Mode 7-1: The terminal device sends the first uplink transmission, and / or the terminal device does not receive the first downlink transmission;

[0340] Mode 7-2: The terminal device does not send the first uplink transmission, and / or the terminal device receives the first downlink transmission;

[0341] Mode 7-3: When the time interval between the end position of the fourth time domain resource and the start position of the second time domain resource is less than the first duration, the terminal device sends the first uplink transmission, and / or the terminal device does not receive the first downlink transmission;

[0342] Mode 7-4: When the time interval between the end position of the fourth time domain resource and the start position of the second time domain resource is greater than or equal to the first duration, the terminal device does not send the first uplink transmission, and / or the terminal device receives the first downlink transmission;

[0343] Mode 7-5: The terminal device determines whether to send the first uplink transmission or receive the first downlink transmission based on the implementation of the terminal device.

[0344] For method 7-1, if the terminal device receives dynamic scheduling of downlink transmission and dynamic scheduling of uplink transmission, wherein the time interval between the last symbol of the time domain resources occupied by the uplink transmission after considering the influence of the TA and the first symbol of the time domain resources occupied by the downlink transmission is less than the third duration, or the time interval between the last symbol of the time domain resources occupied by the downlink transmission and the first symbol of the time domain resources occupied by the uplink transmission after considering the influence of the TA is less than the second duration, then the terminal device sends the dynamically scheduled uplink transmission, and / or the terminal device does not receive the dynamically scheduled downlink transmission.

[0345] In mode 7-1, the priority of uplink transmission is higher than the priority of downlink transmission.

[0346] In one example, when T1 in Figure 12 is less than the second time length, the terminal device sends an uplink transmission on the second time domain resource (uplink time slot n+9 of the terminal device) after considering the influence of TA or does not receive a downlink transmission on the first time domain resource (downlink time slot n+3 of the terminal device).

[0347] In one example, when T2 in Figure 13 is less than the third time length, the terminal device sends an uplink transmission on the second time domain resource (the uplink time slot n+6 of the terminal device) or does not receive a downlink transmission on the first time domain resource (the downlink time slot n+3 of the terminal device).

[0348] For mode 7-2, if the terminal device receives dynamic scheduling of downlink transmission and dynamic scheduling of uplink transmission, wherein the time interval between the last symbol of the time domain resources occupied by the uplink transmission after considering the influence of the TA and the first symbol of the time domain resources occupied by the downlink transmission is less than the third duration, or the time interval between the last symbol of the time domain resources occupied by the downlink transmission and the first symbol of the time domain resources occupied by the uplink transmission after considering the influence of the TA is less than the second duration, then the terminal device does not send the dynamically scheduled uplink transmission, and / or the terminal device receives the dynamically scheduled downlink transmission.

[0349] In mode 7-2, the priority of downlink transmission is higher than the priority of uplink transmission.

[0350] In one example, when T1 in Figure 12 is less than the second time length, the terminal device does not send an uplink transmission on the second time domain resource (the uplink time slot n+9 of the terminal device) or receives a downlink transmission on the first time domain resource (the downlink time slot n+3 of the terminal device) and / or the network device does not receive an uplink transmission on the second time domain resource (the uplink time slot n+9 of the terminal device) or does not send a downlink transmission on the first time domain resource (the downlink time slot n+3 of the terminal device).

[0351] In one example, when T2 in Figure 13 is less than the third time length, the terminal device does not send an uplink transmission on the second time domain resource (the uplink time slot n+6 of the terminal device) or receives a downlink transmission on the first time domain resource (the downlink time slot n+3 of the terminal device); and / or, the network device does not receive an uplink transmission on the second time domain resource (the uplink time slot n+6 of the terminal device) or does not send a downlink transmission on the first time domain resource (the downlink time slot n+3 of the terminal device).

[0352] For mode 7-3 and mode 7-4, if the terminal device receives dynamic scheduling of downlink transmission and dynamic scheduling of uplink transmission, the time interval between the last symbol of the time domain resources occupied by the uplink transmission after considering the influence of TA and the first symbol of the time domain resources occupied by the downlink transmission is less than the third duration, or the time interval between the last symbol of the time domain resources occupied by the downlink transmission and the first symbol of the time domain resources occupied by the uplink transmission after considering the influence of TA is less than the second duration, wherein the time interval between the last symbol of the first DCI for dynamically scheduling the downlink transmission and the first symbol of the time domain resources occupied by the uplink transmission after considering the influence of TA is less than the first duration, then the terminal device does not send the first uplink transmission, and / or the terminal device receives the first downlink transmission; otherwise, the terminal device sends the first uplink transmission, and / or the terminal device does not receive the first downlink transmission.

[0353] In Mode 7-3 and Mode 7-4, it can be considered that under normal circumstances, the priority of downlink transmission is higher than the priority of uplink transmission. If the time interval between the end position of the fourth time domain resource and the start position of the second time domain resource is less than the first duration, it can be considered that the terminal device has begun to prepare for uplink transmission, then the priority of uplink transmission is higher than the priority of downlink transmission, the uplink transmission cannot be canceled, and the terminal device sends the uplink transmission.

[0354] In one example, as shown in Figure 19, assuming that T2 between the first time domain resource (downlink time slot n+3 of the terminal device) and the second time domain resource (uplink time slot n+6 of the terminal device) is less than the third duration, if the time interval T5 between the last symbol of the fourth time domain resource used by the first DCI in the downlink and the first symbol of the second time domain resource in the uplink is less than the first duration, the terminal device sends an uplink transmission or does not receive a downlink transmission; if the time interval T5 between the last symbol of the fourth time domain resource used by the first DCI in the downlink and the first symbol of the second time domain resource in the uplink is greater than or equal to the first duration, the terminal device does not send an uplink transmission or receive a downlink transmission.

[0355] For method 7-5, if the terminal device receives dynamic scheduling of downlink transmission and dynamic scheduling of uplink transmission, where the time interval between the last symbol of the time domain resources occupied by the uplink transmission after considering the influence of the TA and the first symbol of the time domain resources occupied by the downlink transmission is less than the third duration, or the time interval between the last symbol of the time domain resources occupied by the downlink transmission and the first symbol of the time domain resources occupied by the uplink transmission after considering the influence of the TA is less than the second duration, then the terminal device determines to send the dynamically scheduled uplink transmission or receive the dynamically scheduled downlink transmission based on its own implementation.

[0356] In method 7-5, it can be considered that the priority of uplink transmission or downlink transmission is determined by the terminal device itself.

[0357] Collision mode 2, situation B

[0358] In some embodiments, the terminal device communicates in a target-based manner, including one of the following situations:

[0359] Mode 8-1: The terminal device sends the first uplink transmission, and / or the terminal device does not receive the first downlink transmission;

[0360] Mode 8-2: The terminal device does not send the first uplink transmission, and / or the terminal device receives the first downlink transmission;

[0361] Mode 8-3: The terminal device determines whether to send the first uplink transmission or receive the first downlink transmission based on the implementation of the terminal device.

[0362] For method 8-1, if the terminal device is semi-statically configured with downlink transmission and uplink transmission, the time interval between the last symbol of the time domain resources occupied by the uplink transmission after considering the influence of the TA and the first symbol of the time domain resources occupied by the downlink transmission is less than the third time length, or the time interval between the last symbol of the time domain resources occupied by the downlink transmission and the first symbol of the time domain resources occupied by the uplink transmission after considering the influence of the TA is less than the second time length, then the terminal device sends the semi-statically configured uplink transmission, and / or the terminal device does not receive the semi-statically configured downlink transmission.

[0363] In mode 8-1, the priority of uplink transmission is higher than the priority of downlink transmission.

[0364] For mode 8-2, if the terminal device is semi-statically configured with downlink transmission and uplink transmission, where the time interval between the last symbol of the time domain resources occupied by the uplink transmission after considering the influence of the TA and the first symbol of the time domain resources occupied by the downlink transmission is less than the third time length, or the time interval between the last symbol of the time domain resources occupied by the downlink transmission and the first symbol of the time domain resources occupied by the uplink transmission after considering the influence of the TA is less than the second time length, then the terminal device does not send the semi-statically configured uplink transmission, and / or the terminal device receives the semi-statically configured downlink transmission.

[0365] In mode 8-2, the priority of downlink transmission is higher than the priority of uplink transmission.

[0366] For method 8-3, if the terminal device is semi-statically configured with downlink transmission and uplink transmission, where the time interval between the last symbol of the time domain resources occupied by the uplink transmission after considering the influence of the TA and the first symbol of the time domain resources occupied by the downlink transmission is less than the third duration, or the time interval between the last symbol of the time domain resources occupied by the downlink transmission and the first symbol of the time domain resources occupied by the uplink transmission after considering the influence of the TA is less than the second duration, then the terminal device determines to send the semi-statically configured uplink transmission or receive the semi-statically configured downlink transmission based on its own implementation.

[0367] In method 8-3, it can be considered that the priority of uplink transmission or downlink transmission is determined by the terminal device itself.

[0368] Collision Mode 2: Case C

[0369] In some embodiments, the terminal device communicates in a target-based manner, including one of the following situations:

[0370] Mode 9-1: The terminal device does not send the first uplink transmission, and / or the terminal device receives the first downlink transmission;

[0371] Mode 9-2: When the time interval between the end position of the fourth time domain resource and the start position of the second time domain resource is less than the first duration, the terminal device sends the first uplink transmission, and / or the terminal device does not receive the first downlink transmission;

[0372] Method 9-3: When the time interval between the end position of the fourth time domain resource and the starting position of the second time domain resource is greater than or equal to the first duration, the terminal device does not send the first uplink transmission, and / or the terminal device receives the first downlink transmission.

[0373] For method 9-1, if the terminal device receives dynamic scheduling of downlink transmission and the terminal device is semi-statically configured for uplink transmission, wherein the time interval between the last symbol of the time domain resources occupied by the uplink transmission after considering the influence of the TA and the first symbol of the time domain resources occupied by the downlink transmission is less than the third duration, or the time interval between the last symbol of the time domain resources occupied by the downlink transmission and the first symbol of the time domain resources occupied by the uplink transmission after considering the influence of the TA is less than the second duration, then the terminal device does not send the semi-statically configured uplink transmission, and / or the terminal device receives the dynamically scheduled downlink transmission.

[0374] In mode 9-1, the priority of downlink transmission is higher than the priority of uplink transmission.

[0375] For mode 9-2 and mode 9-3, if the terminal device receives dynamic scheduling of downlink transmission and the terminal device is semi-statically configured for uplink transmission, the time interval between the last symbol of the time domain resources occupied by the uplink transmission after considering the influence of the TA and the first symbol of the time domain resources occupied by the downlink transmission is less than the third duration, or the time interval between the last symbol of the time domain resources occupied by the downlink transmission and the first symbol of the time domain resources occupied by the uplink transmission after considering the influence of the TA is less than the second duration, wherein the time interval between the last symbol of the first DCI for dynamically scheduling the downlink transmission and the first symbol of the time domain resources occupied by the uplink transmission after considering the influence of the TA is less than the first duration, then the terminal device does not send the semi-statically configured uplink transmission, and / or the terminal device receives the dynamically scheduled downlink transmission; otherwise, the terminal device sends the semi-statically configured uplink transmission, and / or the terminal device does not receive the dynamically scheduled downlink transmission.

[0376] In Mode 9-2 and Mode 9-3, it can be considered that under normal circumstances, the priority of downlink transmission is higher than the priority of uplink transmission. If the time interval between the end position of the fourth time domain resource and the start position of the second time domain resource is less than the first duration, it can be considered that the terminal device has begun to prepare for uplink transmission, then the priority of uplink transmission is higher than the priority of downlink transmission, the uplink transmission cannot be canceled, and the terminal device sends the uplink transmission.

[0377] Collision Mode 2: Situation D

[0378] In some embodiments, the terminal device communicates in a target-based manner, including:

[0379] Mode 10-1: The terminal device sends the first uplink transmission, and / or the terminal device does not receive the first downlink transmission.

[0380] If a terminal device is semi-statically configured for downlink transmission and the terminal device receives dynamic scheduling of uplink transmission, wherein the time interval between the last symbol of the time domain resources occupied by the uplink transmission after considering the influence of the TA and the first symbol of the time domain resources occupied by the downlink transmission is less than the third duration, or the time interval between the last symbol of the time domain resources occupied by the downlink transmission and the first symbol of the time domain resources occupied by the uplink transmission after considering the influence of the TA is less than the second duration, then the terminal device sends the first dynamically scheduled uplink transmission, and / or the terminal device does not receive the first semi-statically configured downlink transmission.

[0381] Collision Mode 2: Case E

[0382] In some embodiments, the terminal device communicates in a target-based manner, including:

[0383] Mode 11-1: The terminal device does not send the first uplink transmission, and / or the terminal device receives the first downlink transmission.

[0384] If a terminal device is instructed to transmit an SSB, and the terminal device is semi-statically configured for uplink transmission or receives dynamic scheduling of uplink transmission, wherein the time interval between the last symbol of the time domain resources occupied by the uplink transmission after considering the influence of the TA and the first symbol of the time domain resources occupied by the SSB is less than a third duration, or the time interval between the last symbol of the time domain resources occupied by the SSB and the first symbol of the time domain resources occupied by the uplink transmission after considering the influence of the TA is less than a second duration, then the terminal device does not send the first uplink transmission that is semi-statically configured or dynamically scheduled, and / or the terminal device receives the SSB.

[0385] Collision Mode 2: Case F

[0386] In some embodiments, the terminal device communicates in a target-based manner, including one of the following situations:

[0387] Mode 12-1: The terminal device sends the first uplink transmission, and / or the terminal device does not receive the first downlink transmission;

[0388] Mode 12-2: The terminal device does not send the first uplink transmission, and / or the terminal device receives the first downlink transmission;

[0389] Mode 12-3: The terminal device determines whether to send the first uplink transmission or receive the first downlink transmission based on the implementation of the terminal device.

[0390] For method 12-1, if the terminal device is semi-statically configured for downlink transmission or receives dynamic scheduling of downlink transmission, and the terminal device is triggered by the higher layer to transmit uplink on a valid RO, wherein the time interval between the last symbol of the time domain resources occupied by the uplink transmission on the valid RO after considering the influence of the TA and the first symbol of the time domain resources occupied by the downlink transmission is less than a third duration, or the time interval between the last symbol of the time domain resources occupied by the downlink transmission and the first symbol of the time domain resources occupied by the uplink transmission on the valid RO after considering the influence of the TA is less than a second duration, then the terminal device sends the uplink transmission on the valid RO, and / or the terminal device does not receive the semi-statically configured or dynamically scheduled downlink transmission.

[0391] For mode 12-2, if the terminal device is semi-statically configured for downlink transmission or receives dynamic scheduling of downlink transmission, and the terminal device is triggered by the higher layer to perform uplink transmission on the valid RO, wherein the time interval between the last symbol of the time domain resources occupied by the uplink transmission on the valid RO after considering the influence of the TA and the first symbol of the time domain resources occupied by the downlink transmission is less than the third time length, or the time interval between the last symbol of the time domain resources occupied by the downlink transmission and the first symbol of the time domain resources occupied by the uplink transmission on the valid RO after considering the influence of the TA is less than the second time length, then the terminal device does not send the uplink transmission on the valid RO, and / or the terminal device receives the semi-statically configured or dynamically scheduled downlink transmission.

[0392] For method 12-3, if the terminal device is semi-statically configured with downlink transmission or receives dynamic scheduling of downlink transmission, and the terminal device is triggered by the higher layer to transmit uplink on a valid RO, wherein the time interval between the last symbol of the time domain resources occupied by the uplink transmission on the valid RO after considering the influence of the TA and the first symbol of the time domain resources occupied by the downlink transmission is less than the third duration, or the time interval between the last symbol of the time domain resources occupied by the downlink transmission and the first symbol of the time domain resources occupied by the uplink transmission on the valid RO after considering the influence of the TA is less than the second duration, then the terminal device determines to send uplink transmission on the valid RO or receive downlink transmission based on its own implementation.

[0393] In some embodiments, the terminal device not receiving the first downlink transmission in collision mode 2 includes:

[0394] The terminal device does not receive the first downlink transmission on the first time domain resource; or,

[0395] If the second time domain resource is located before the first time domain resource, the terminal device does not receive the first downlink channel or signal in the first downlink transmission; or,

[0396] If the first time domain resource is located before the second time domain resource, the terminal device does not receive the last downlink channel or signal in the first downlink transmission.

[0397] In some embodiments, the terminal device not sending the first uplink transmission includes:

[0398] The terminal device does not send the first uplink transmission on the second time domain resource; or,

[0399] If the first time domain resource is located before the second time domain resource, the terminal device does not send the first uplink channel or signal in the first uplink transmission; or,

[0400] If the second time domain resource is located before the first time domain resource, the terminal device does not send the last uplink channel or signal in the first uplink transmission.

[0401] In some embodiments, if the collision mode is collision mode two, the terminal device not receiving the first downlink transmission may include: the terminal device not receiving the first downlink transmission on the first time domain resource, or the terminal device not receiving the symbol located in the second time length in the first downlink transmission, or the terminal device not receiving the symbol located in the third time length in the first downlink transmission.

[0402] In some embodiments, if the collision mode is collision mode two, the terminal device not sending the first uplink transmission may include: the terminal device not sending the first uplink transmission on the second time domain resource, or the terminal device not sending the symbol located in the second time length in the first uplink transmission, or the terminal device not sending the symbol located in the third time length in the first uplink transmission.

[0403] The following describes different collision modes and the processing behaviors of network devices in different situations.

[0404] As previously mentioned, the first time domain resource or the second time domain resource is the time domain resource calculated by the network device from the perspective of the terminal device, and is not the time domain resource used by the network device to actually send downlink transmissions or receive uplink transmissions. To illustrate this, Figure 11 shows a scheduling timing diagram in an NTN system. As shown in Figure 11, assume that the uplink time unit and the downlink time unit in the NTN network are aligned at the reference point (RP), the round-trip transmission delay Kmac between the network device and the RP is 2 time slots, and the round-trip transmission delay (TA) between the terminal device and the RP is 4.5 time slots. The network device schedules the terminal device to receive the first downlink transmission in downlink time slot n+2 and to send the first uplink transmission in uplink time slot n+7. In this example, the first time domain resource is downlink time slot n+2 determined based on the downlink time slot of the terminal device, and the second time domain resource is uplink time slot n+7 determined based on the uplink time slot of the terminal device. The downlink time slot n+2 and uplink time slot n+7 of the terminal device overlap in the time domain, and the third time domain resource includes the overlapping portion, that is, the third time domain resource includes the second half of the downlink time slot n+2 of the terminal device, or the third time domain resource includes the first half of the uplink time slot n+7 of the terminal device. From the perspective of the network device, the first downlink transmission should occur in the downlink time slot n+2 of the network device, and the first uplink transmission should occur in the uplink time slot n+7 of the network device. The first downlink transmission and the first uplink transmission will not collide in the time domain.

[0405] In an NTN network, due to the significant signal transmission delay, the impact of the terminal device's TA cannot be ignored. It becomes difficult for network devices to avoid collisions between the terminal device's uplink and downlink transmissions through scheduling. In other words, the network device cannot determine whether the first downlink transmission and the first uplink transmission it schedules will collide in the time domain.

[0406] Therefore, in some embodiments, the network devices communicate in a target-based manner, including:

[0407] The network device sends a first downlink transmission and receives a first uplink transmission.

[0408] If the network device can obtain the TA information of the terminal device (for example, the terminal device reports its own TA information to the network device), the network device can calculate the time domain positions of the first time domain resource and the second time domain resource determined from the terminal device side based on the TA information of the terminal device, thereby determining whether the first downlink transmission on the first time domain resource and the first uplink transmission on the second time domain resource collide in the time domain from the perspective of the terminal device. In this case, the processing behavior of the network device can be as follows.

[0409] Collision method 1. Case A

[0410] In some embodiments, the network devices communicate in a target-based manner, including:

[0411] Mode 13-1: The network device receives the first uplink transmission on the seventh time domain resource; and / or the network device does not send the first downlink transmission on the seventh time domain resource;

[0412] The seventh time domain resource corresponds to the third time domain resource.

[0413] In some embodiments, the seventh time domain resource corresponds to the third time domain resource, which may refer to: a correspondence between a time unit determined by a network device and a time unit determined by a terminal device having the same number. For example, in the example of FIG11 , the third time domain resource includes the second half of the downlink time slot n+2 of the terminal device, and the seventh time domain resource includes the second half of the downlink time slot n+2 of the network device; or the third time domain resource includes the first half of the uplink time slot n+7 of the terminal device, and the seventh time domain resource includes the first half of the uplink time slot n+7 of the network device.

[0414] Here, it can be considered that the priority of uplink transmission is higher than the priority of downlink transmission.

[0415] For method 13-1, if the network device sends dynamic scheduling of downlink transmission and dynamic scheduling of uplink transmission to the terminal device, where, for the terminal device, the time domain resources occupied by the uplink transmission after considering the influence of TA partially overlap or completely overlap with the time domain resources occupied by the downlink transmission, and the third time domain resources include the overlapping part, then the network device receives the dynamically scheduled uplink transmission on the seventh time domain resource, and / or the network device does not send the dynamically scheduled downlink transmission on the seventh time domain resource.

[0416] In some embodiments, the network device communicates in a target-based manner, including one of the following situations:

[0417] Mode 13-2: The network device does not receive the first uplink transmission on the seventh time domain resource, and / or the network device sends the first downlink transmission on the seventh time domain resource;

[0418] Mode 13-3: When the time interval between the end position of the fourth time domain resource and the starting position of the second time domain resource is less than the first duration, the network device receives the first uplink transmission on the seventh time domain resource, and / or the network device does not send the first downlink transmission on the seventh time domain resource;

[0419] Mode 13-4: When the time interval between the end position of the fourth time domain resource and the starting position of the second time domain resource is greater than or equal to the first duration, the network device does not receive the first uplink transmission on the seventh time domain resource, and / or the network device sends the first downlink transmission on the seventh time domain resource;

[0420] Mode 13-5: When the time interval between the end position of the fourth time domain resource and the starting position of the third time domain resource is less than the first duration, the network device receives the first uplink transmission on the seventh time domain resource, and / or the network device does not send the first downlink transmission on the seventh time domain resource;

[0421] Mode 13-6: When the time interval between the end position of the fourth time domain resource and the starting position of the third time domain resource is greater than or equal to the first duration, the network device does not receive the first uplink transmission on the seventh time domain resource, and / or the network device sends the first downlink transmission on the seventh time domain resource;

[0422] Among them, the fourth time domain resource is the time domain resource for the terminal device to receive the first DCI, and the seventh time domain resource corresponds to the third time domain resource.

[0423] For method 13-2, if the network device sends dynamic scheduling of downlink transmission and dynamic scheduling of uplink transmission, and the terminal device receives the dynamic scheduling of downlink transmission and dynamic scheduling of uplink transmission, wherein, for the terminal device, the time domain resources occupied by the uplink transmission after considering the influence of TA partially overlap or completely overlap with the time domain resources occupied by the downlink transmission, and the overlapping part is the third time domain resource of the terminal device, then the network device sends the dynamically scheduled downlink transmission on the seventh time domain resource, and / or the network device does not receive the dynamically scheduled uplink transmission on the seventh time domain resource.

[0424] In mode 13-2, it can be considered that the priority of downlink transmission is higher than the priority of uplink transmission.

[0425] For mode 13-3 or mode 13-4, the end position of the fourth time domain resource may be the position of the last symbol of the CORESET carrying the first DCI, and the starting position of the second time domain resource may be the first symbol of the second time domain resource.

[0426] If the network device sends dynamic scheduling of downlink transmission and dynamic scheduling of uplink transmission, and the terminal device receives the dynamic scheduling of downlink transmission and dynamic scheduling of uplink transmission, wherein, for the terminal device, the time domain resources occupied by the uplink transmission after considering the influence of TA partially overlap or completely overlap with the time domain resources occupied by the downlink transmission, and the overlapping part is the third time domain resource of the terminal device, then if the last symbol of the CORESET of the first DCI for detecting the dynamically scheduled downlink transmission, the first symbol for transmitting the dynamically scheduled uplink transmission after considering the influence of TA is within the first time length, then the network device receives the dynamically scheduled uplink transmission on the seventh time domain resource, and / or the network device does not send the dynamically scheduled downlink transmission on the seventh time domain resource; otherwise, the network device does not receive the dynamically scheduled uplink transmission on the seventh time domain resource, and / or the network device sends the dynamically scheduled downlink transmission on the seventh time domain resource.

[0427] Here, it can be considered that under normal circumstances, the priority of downlink transmission is greater than the priority of uplink transmission. If the time interval between the end position of the terminal device receiving the first DCI and the start position of the upload transmission after the terminal device considers TA is less than the first duration, it can be considered that the terminal device has begun to prepare for uplink transmission, then the priority of uplink transmission is higher than the priority of downlink transmission, uplink transmission cannot be canceled, the terminal device sends uplink transmission on the third time domain resource, and the network device receives uplink transmission on the seventh time domain resource; otherwise, under normal circumstances, the priority of downlink transmission is higher than the priority of uplink transmission, uplink transmission is allowed to be canceled, the terminal device receives downlink transmission on the third time domain resource, and the network device sends downlink transmission on the seventh time domain resource.

[0428] For mode 13-5 and mode 13-6, if the network device sends dynamic scheduling of downlink transmission and dynamic scheduling of uplink transmission, the terminal device receives the dynamic scheduling of downlink transmission and dynamic scheduling of uplink transmission, wherein, for the terminal device, the time domain resources occupied by the uplink transmission after considering the influence of TA partially overlap or completely overlap with the time domain resources occupied by the downlink transmission, and the overlapping part is the third time domain resource of the terminal device, then if the last symbol of the CORESET of the first DCI for dynamically scheduled downlink transmission detected by the terminal device is within the first time length, then the network device receives the dynamically scheduled uplink transmission on the seventh time domain resource to receive the uplink transmission sent by the terminal device on the third time domain resource, and / or the network device does not send the dynamically scheduled downlink transmission on the seventh time domain resource; otherwise, the network device does not receive the dynamically scheduled uplink transmission on the seventh time domain resource, and / or the network device sends the dynamically scheduled downlink transmission on the seventh time domain resource so that the terminal device receives the downlink transmission on the third time domain resource.

[0429] Here, it can be considered that under normal circumstances, the priority of downlink transmission is greater than the priority of uplink transmission. If the time interval between the end position of the fourth time domain resource of the terminal device and the start position of the third time domain resource of the terminal device is less than the first time length, it can be considered that the terminal device has begun to prepare for uplink transmission, then the priority of uplink transmission is higher than the priority of downlink transmission, uplink transmission cannot be canceled, the terminal device sends uplink transmission on the third time domain resource, and the network device receives the uplink transmission sent by the terminal device on the third time domain resource on the seventh time domain resource; otherwise, under normal circumstances, the priority of downlink transmission is higher than the priority of uplink transmission, uplink transmission is allowed to be canceled, the network device sends downlink transmission on the seventh time domain resource, so that the terminal device receives downlink transmission on the third time domain resource.

[0430] For method 13-7, if the network device sends dynamic scheduling of downlink transmission and dynamic scheduling of uplink transmission, and the terminal device receives the dynamic scheduling of downlink transmission and dynamic scheduling of uplink transmission, wherein, for the terminal device, the time domain resources occupied by the uplink transmission after considering the influence of TA partially overlap or completely overlap with the time domain resources occupied by the downlink transmission, then the network device sends downlink transmission on the seventh time domain resource and receives uplink transmission, which can meet the need of the terminal device to determine whether to send dynamically scheduled uplink transmission or receive dynamically scheduled downlink transmission on the third time domain resource based on its own implementation.

[0431] In method 13-7, for terminal devices, the priority of uplink transmission or downlink transmission is determined by the terminal device itself, and for network devices, uplink transmission and downlink transmission are performed simultaneously.

[0432] In some embodiments, the network devices communicate in a target-based manner, including:

[0433] Mode 13-7: The network device receives the first uplink transmission and sends the first downlink transmission on the seventh time domain resource; wherein the seventh time domain resource corresponds to the third time domain resource.

[0434] Collision mode 1, situation B

[0435] In some embodiments, the network device communicates in a target-based manner, including one of the following situations:

[0436] Mode 14-1: The network device receives the first uplink transmission on the seventh time domain resource, and / or the network device does not send the first downlink transmission on the seventh time domain resource;

[0437] Mode 14-2: The network device does not receive the first uplink transmission on the seventh time domain resource, and / or the network device sends the first downlink transmission on the seventh time domain resource;

[0438] Mode 14-3: The network device receives the first uplink transmission and sends the first downlink transmission on the seventh time domain resource.

[0439] For method 14-1, the terminal device is semi-statically configured with downlink transmission and uplink transmission, wherein, for the terminal device, the time domain resources occupied by the semi-statically configured uplink transmission after considering the influence of TA partially overlap or completely overlap with the time domain resources occupied by the semi-statically configured downlink transmission, and the overlapping part is the third time domain resource of the terminal device. Then, the network device receives the uplink transmission on the seventh time domain resource to receive the semi-statically configured uplink transmission sent by the terminal device on the third time domain resource, and / or the network device does not send a downlink transmission on the seventh time domain resource.

[0440] In mode 14-1, it can be considered that the priority of uplink transmission is higher than the priority of downlink transmission.

[0441] For method 14-2, the terminal device is semi-statically configured with downlink transmission and uplink transmission, wherein, for the terminal device, the time domain resources occupied by the semi-statically configured uplink transmission after considering the influence of TA partially overlap or completely overlap with the time domain resources occupied by the semi-statically configured downlink transmission, and the overlapping part is the third time domain resource of the terminal device. Then, the network device does not receive the uplink transmission on the seventh time domain resource, and / or the network device sends the downlink transmission on the seventh time domain resource, and the terminal device receives the downlink transmission on the third time domain resource.

[0442] In mode 14-2, it can be considered that the priority of downlink transmission is higher than the priority of uplink transmission.

[0443] For method 14-3, the terminal device is semi-statically configured with downlink transmission and uplink transmission, wherein, for the terminal device, the time domain resources occupied by the semi-statically configured uplink transmission after considering the influence of TA partially overlap or completely overlap with the time domain resources occupied by the semi-statically configured downlink transmission, and the overlapping part is the third time domain resource of the terminal device. Then, the network device sends downlink transmission and receives uplink transmission on the seventh time domain resource, which can meet the needs of the terminal device to determine the third time domain resource to send dynamically scheduled uplink transmission or receive dynamically scheduled downlink transmission based on its own implementation.

[0444] In method 14-3, for terminal devices, the priority of uplink transmission or downlink transmission is determined by the terminal device itself, and for network devices, uplink transmission and downlink transmission are performed simultaneously.

[0445] Collision mode 1: Case C

[0446] In some embodiments, the network device communicates in a target-based manner, including one of the following situations:

[0447] Mode 15-1: The network device does not receive the first uplink transmission on the seventh time domain resource, and / or the network device sends the first downlink transmission on the seventh time domain resource;

[0448] Mode 15-2: When the time interval between the end position of the fourth time domain resource and the starting position of the second time domain resource is less than the first duration, the network device receives the first uplink transmission on the seventh time domain resource, and / or the network device does not send the first downlink transmission on the seventh time domain resource;

[0449] Mode 15-3: When the time interval between the end position of the fourth time domain resource and the starting position of the second time domain resource is greater than or equal to the first duration, the network device does not receive the first uplink transmission on the seventh time domain resource, and / or the network device sends the first downlink transmission on the seventh time domain resource;

[0450] Mode 15-4: When the time interval between the end position of the fourth time domain resource and the starting position of the third time domain resource is less than the first duration, the network device receives the first uplink transmission on the seventh time domain resource, and / or the network device does not send the first downlink transmission on the seventh time domain resource;

[0451] Method 15-5: When the time interval between the end position of the fourth time domain resource and the starting position of the third time domain resource is greater than or equal to the first duration, the network device does not receive the first uplink transmission on the seventh time domain resource, and / or the network device sends the first downlink transmission on the seventh time domain resource.

[0452] For method 15-1, the network device sends dynamic scheduling of downlink transmission, and the terminal device is semi-statically configured for uplink transmission, wherein, for the terminal device, the time domain resources occupied by the semi-statically configured uplink transmission after considering the influence of TA partially overlap or completely overlap with the time domain resources occupied by the dynamically scheduled downlink transmission, and the overlapping part is the third time domain resource of the terminal device, then the network device does not receive the uplink transmission on the seventh time domain resource, and / or, the network device sends the downlink transmission on the seventh time domain resource, so that the terminal device receives the downlink transmission on the third time domain resource.

[0453] In mode 15-1, it can be considered that the priority of downlink transmission is higher than the priority of uplink transmission.

[0454] For mode 15-2 and mode 15-3, the network device sends dynamic scheduling of downlink transmission, and the terminal device is semi-statically configured for uplink transmission, wherein, for the terminal device, the time domain resources occupied by the semi-statically configured uplink transmission after considering the influence of TA partially overlap or completely overlap with the time domain resources occupied by the dynamically scheduled downlink transmission, and the overlapping part is the third time domain resource of the terminal device. If, relative to the last symbol of the CORESET of the first DCI for detecting the dynamically scheduled downlink transmission, the first symbol of the semi-statically configured uplink transmission after considering the influence of TA is within the first time length, then the network device receives the semi-statically configured uplink transmission on the seventh time domain resource, and / or the network device does not send the dynamically scheduled downlink transmission on the seventh time domain resource; otherwise, the network device does not receive the semi-statically configured uplink transmission on the seventh time domain resource, and / or the network device sends the dynamically scheduled downlink transmission on the seventh time domain resource.

[0455] For mode 15-4 and mode 15-5, the network device sends dynamic scheduling of downlink transmission, and the terminal device is semi-statically configured for uplink transmission, wherein, for the terminal device, the time domain resources occupied by the semi-statically configured uplink transmission after considering the influence of TA partially overlap or completely overlap with the time domain resources occupied by the dynamically scheduled downlink transmission, and the overlapping part is the third time domain resource of the terminal device. If the last symbol of the CORESET of the first DCI for dynamically scheduled downlink transmission detected by the terminal device is within the first time length, then the network device receives the semi-statically configured uplink transmission on the seventh time domain resource to receive the uplink transmission sent by the terminal device on the third time domain resource, and / or the network device does not send the dynamically scheduled downlink transmission on the seventh time domain resource; otherwise, the network device does not receive the semi-statically configured uplink transmission on the seventh time domain resource, and / or the network device sends the dynamically scheduled downlink transmission on the seventh time domain resource so that the terminal device receives the downlink transmission on the third time domain resource.

[0456] Collision mode 1: Situation D

[0457] In some embodiments, the network devices communicate in a target-based manner, including:

[0458] Mode 16-1: The network device receives the first uplink transmission on the seventh time domain resource; and / or, the network device does not send the first downlink transmission on the seventh time domain resource.

[0459] For method 16-1, the network device sends a dynamic schedule of uplink transmission to the terminal device, the terminal device receives the dynamic schedule of uplink transmission, and the terminal device is semi-statically configured for downlink transmission, wherein, for the terminal device, the time domain resources occupied by the dynamically scheduled uplink transmission after considering the influence of TA partially overlap or completely overlap with the time domain resources occupied by the semi-statically configured downlink transmission, and the overlapping part is the third time domain resource of the terminal device, then the network device receives the uplink transmission on the seventh time domain resource to receive the dynamically scheduled uplink transmission sent by the terminal device on the third time domain resource, and / or the network device does not send a downlink transmission on the seventh time domain resource.

[0460] Collision mode 1: Case E

[0461] In some embodiments, the network devices communicate in a target-based manner, including:

[0462] Mode 17-1: The network device does not receive the first uplink transmission on the seventh time domain resource; and / or, the network device sends the first downlink transmission on the seventh time domain resource.

[0463] For method 17-1, if the network device instructs the terminal device to transmit SSB, and the terminal device is semi-statically configured for uplink transmission or receives dynamic scheduling of uplink transmission, wherein, for the terminal device, the time domain resources occupied by the dynamically scheduled or semi-statically configured uplink transmission after considering the influence of TA partially overlap or completely overlap with the time domain resources occupied by the SSB transmission, and the overlapping part is the third time domain resource of the terminal device, then the network device is able to not receive the dynamically scheduled or semi-statically configured uplink transmission in the seventh time domain resource, and / or, the network device sends SSB on the seventh time domain resource, so that the terminal device receives SSB on the third time domain resource.

[0464] In mode 17-1, it can be considered that the priority of SSB is higher than the priority of uplink transmission.

[0465] Collision mode 1: Case F

[0466] In some embodiments, the network device communicates in a target-based manner, including one of the following situations:

[0467] Mode 18-1: The network device receives the first uplink transmission on the seventh time domain resource, and / or the network device does not send the first downlink transmission on the seventh time domain resource;

[0468] Mode 18-2: The network device does not receive the first uplink transmission on the seventh time domain resource, and / or the network device sends the first downlink transmission on the seventh time domain resource;

[0469] Method 18-3: The network device receives the first uplink transmission and sends the first downlink transmission on the seventh time domain resource.

[0470] For method 18-1, if the terminal device is semi-statically configured for downlink transmission or receives dynamic scheduling for downlink transmission, and the terminal device is triggered by the higher layer to transmit uplink on the valid RO, wherein, for the terminal device, the time domain resources occupied by the dynamically scheduled or semi-statically configured downlink transmission partially overlap or completely overlap with the time domain resources occupied by the uplink transmission on the valid RO after considering the influence of TA, and the overlapping part is the third time domain resource of the terminal device, then the network device receives the uplink transmission on the valid RO sent by the terminal device on the third time domain resource on the seventh time domain resource, and / or the network device does not send a downlink transmission on the seventh time domain resource.

[0471] For method 18-2, if the terminal device is semi-statically configured for downlink transmission or receives dynamic scheduling for downlink transmission, and the terminal device is triggered by the higher layer to perform uplink transmission on the valid RO, wherein, for the terminal device, the time domain resources occupied by the dynamically scheduled or semi-statically configured downlink transmission partially overlap or completely overlap with the time domain resources occupied by the uplink transmission on the valid RO after considering the influence of TA, and the overlapping part is the third time domain resource of the terminal device, then the network device sends the downlink transmission on the seventh time domain resource, and / or the network device does not receive the uplink transmission on the RO on the seventh time domain resource.

[0472] For method 18-3, if the terminal device is semi-statically configured with downlink transmission or receives dynamic scheduling of downlink transmission, and the terminal device is triggered by the higher layer to transmit uplink on the valid RO, wherein, for the terminal device, the time domain resources occupied by the dynamically scheduled or semi-statically configured downlink transmission partially overlap or completely overlap with the time domain resources occupied by the uplink transmission on the valid RO after considering the influence of TA, and the overlapping part is the third time domain resource of the terminal device, then the network device sends downlink transmission and receives uplink transmission on the seventh time domain resource, which can meet the needs of the terminal device to determine the third time domain resource to send dynamically scheduled uplink transmission or receive dynamically scheduled downlink transmission based on its own implementation.

[0473] In some embodiments, the network device not sending the first downlink transmission on the seventh time domain resource includes:

[0474] The network device does not send the first downlink transmission; or,

[0475] The network device does not send the symbol located on the seventh time domain resource in the first downlink transmission; or

[0476] The network device does not send the downlink channel or signal including the seventh time domain resource in the first downlink transmission.

[0477] Taking the example of the network device not sending the symbol located on the seventh time domain resource in the first downlink transmission, the first downlink transmission includes 4 symbols, among which the 3rd and 4th symbols are symbols located on the seventh time domain resource. The network device does not send the 3rd and 4th symbols, but still sends the 1st and 2nd symbols.

[0478] Taking the example of the network device not sending the downlink channel or signal including the seventh time domain resource in the first downlink transmission, the first downlink transmission includes 4 channels, among which the time domain resources of the third channel include the seventh time domain resource, then the network device does not send the third channel, but sends the first, second and fourth channels.

[0479] In some embodiments, the network device not receiving the first uplink transmission on the seventh time domain resource includes:

[0480] The network device does not receive the first uplink transmission; or,

[0481] The network device does not receive the symbol located on the seventh time domain resource in the first uplink transmission; or,

[0482] The network device does not receive the uplink channel or signal including the seventh time domain resource in the first uplink transmission.

[0483] Taking the example of the network device not receiving the symbol located on the seventh time domain resource in the first uplink transmission, the first uplink transmission includes 4 symbols, among which the 3rd and 4th symbols are symbols located on the seventh time domain resource. The network device does not receive the 3rd and 4th symbols, but still receives the 1st and 2nd symbols.

[0484] Taking the example of the network device not receiving the uplink channel or signal including the seventh time domain resource in the first uplink transmission, the first uplink transmission includes 4 channels, among which the time domain resources of the third channel include the third time domain resource, then the network device does not receive the third channel, but receives the first, second and fourth channels.

[0485] Collision Mode 2: Case A

[0486] In some embodiments, the network device communicates in a target-based manner, including one of the following situations:

[0487] Mode 19-1: The network device receives the first uplink transmission, and / or the network device does not send the first downlink transmission;

[0488] Mode 19-2: The network device does not receive the first uplink transmission, and / or the network device sends the first downlink transmission;

[0489] Mode 19-3: When the time interval between the end position of the fourth time domain resource and the start position of the second time domain resource is less than the first duration, the network device receives the first uplink transmission, and / or the network device does not send the first downlink transmission;

[0490] Mode 19-4: When the time interval between the end position of the fourth time domain resource and the start position of the second time domain resource is greater than or equal to the first duration, the network device does not receive the first uplink transmission, and / or the network device sends the first downlink transmission;

[0491] Method 19-5: The network device receives the first uplink transmission and sends the first downlink transmission.

[0492] For method 19-1, if the network device sends dynamic scheduling of downlink transmission and dynamic scheduling of uplink transmission, and the terminal device receives the dynamic scheduling of downlink transmission and dynamic scheduling of uplink transmission, wherein, for the terminal device, the time interval between the last symbol of the time domain resources occupied by the uplink transmission after considering the influence of TA and the first symbol of the time domain resources occupied by the downlink transmission is less than the third time length, or the time interval between the last symbol of the time domain resources occupied by the downlink transmission and the first symbol of the time domain resources occupied by the uplink transmission after considering the influence of TA is less than the second time length, then the network device receives the dynamically scheduled uplink transmission, and / or the network device does not send the dynamically scheduled downlink transmission.

[0493] For method 19-2, if the network device sends dynamic scheduling of downlink transmission and dynamic scheduling of uplink transmission, and the terminal device receives the dynamic scheduling of downlink transmission and dynamic scheduling of uplink transmission, wherein, for the terminal device, the time interval between the last symbol of the time domain resources occupied by the uplink transmission after considering the influence of TA and the first symbol of the time domain resources occupied by the downlink transmission is less than the third time length, or the time interval between the last symbol of the time domain resources occupied by the downlink transmission and the first symbol of the time domain resources occupied by the uplink transmission after considering the influence of TA is less than the second time length, then the network device does not receive the dynamically scheduled uplink transmission, and / or the network device sends the dynamically scheduled downlink transmission.

[0494] For methods 19-3 and 19-4, if the network device sends dynamic scheduling of downlink transmission and dynamic scheduling of uplink transmission, and the terminal device receives the dynamic scheduling of downlink transmission and dynamic scheduling of uplink transmission, wherein, for the terminal device, the time interval between the last symbol of the time domain resources occupied by the uplink transmission after considering the influence of TA and the first symbol of the time domain resources occupied by the downlink transmission is less than the third duration, or, the time interval between the last symbol of the time domain resources occupied by the downlink transmission and the first symbol of the time domain resources occupied by the uplink transmission after considering the influence of TA is less than the second duration, wherein the time interval between the last symbol of the first DCI for dynamically scheduling the downlink transmission and the first symbol of the time domain resources occupied by the uplink transmission after considering the influence of TA is less than the first duration, then the network device does not receive the uplink transmission, and / or the network device sends the downlink transmission; otherwise, the network device receives the uplink transmission, and / or the network device sends the downlink transmission.

[0495] For method 19-5, if the network device sends dynamic scheduling of downlink transmission and dynamic scheduling of uplink transmission, and the terminal device receives the dynamic scheduling of downlink transmission and dynamic scheduling of uplink transmission, wherein, for the terminal device, the time interval between the last symbol of the time domain resources occupied by the uplink transmission after considering the influence of TA and the first symbol of the time domain resources occupied by the downlink transmission is less than the third time length, or the time interval between the last symbol of the time domain resources occupied by the downlink transmission and the first symbol of the time domain resources occupied by the uplink transmission after considering the influence of TA is less than the second time length, then the network device sends downlink transmission and receives uplink transmission, which can meet the needs of the terminal device to determine whether to send dynamically scheduled uplink transmission or receive dynamically scheduled downlink transmission based on its own implementation.

[0496] Collision mode 2, situation B

[0497] In some embodiments, the network device communicates in a target-based manner, including one of the following situations:

[0498] Mode 20-1: The network device receives the first uplink transmission, and / or the network device does not send the first downlink transmission;

[0499] Mode 20-2: The network device does not receive the first uplink transmission, and / or the network device sends the first downlink transmission;

[0500] Method 20-3: The network device receives the first uplink transmission and sends the first downlink transmission.

[0501] For method 20-1, the terminal device is semi-statically configured with downlink transmission and uplink transmission, wherein, for the terminal device, the time interval between the last symbol of the time domain resources occupied by the uplink transmission after considering the influence of the TA and the first symbol of the time domain resources occupied by the downlink transmission is less than the third time length, or the time interval between the last symbol of the time domain resources occupied by the downlink transmission and the first symbol of the time domain resources occupied by the uplink transmission after considering the influence of the TA is less than the second time length, then the network device receives the semi-statically configured uplink transmission, and / or the network device does not send the semi-statically configured downlink transmission.

[0502] For mode 20-2, the terminal device is semi-statically configured with downlink transmission and uplink transmission, wherein, for the terminal device, the time interval between the last symbol of the time domain resources occupied by the uplink transmission after considering the influence of the TA and the first symbol of the time domain resources occupied by the downlink transmission is less than the third time length, or the time interval between the last symbol of the time domain resources occupied by the downlink transmission and the first symbol of the time domain resources occupied by the uplink transmission after considering the influence of the TA is less than the second time length, then the network device does not receive the semi-statically configured uplink transmission, and / or the network device sends the semi-statically configured downlink transmission.

[0503] For method 20-3, the terminal device is semi-statically configured with downlink transmission and uplink transmission, wherein, for the terminal device, the time interval between the last symbol of the time domain resource occupied by the uplink transmission after considering the influence of the TA and the first symbol of the time domain resource occupied by the downlink transmission is less than the third time length, or the time interval between the last symbol of the time domain resource occupied by the downlink transmission and the first symbol of the time domain resource occupied by the uplink transmission after considering the influence of the TA is less than the second time length, then the network device sends downlink transmission and receives uplink transmission, which can meet the needs of the terminal device to determine, based on its own implementation, to send a semi-statically configured uplink transmission or receive a semi-statically configured downlink transmission.

[0504] Collision Mode 2: Case C

[0505] In some embodiments, the network device communicates in a target-based manner, including one of the following situations:

[0506] Mode 21-1: The network device does not receive the first uplink transmission, and / or the network device sends the first downlink transmission;

[0507] Mode 21-2: When the time interval between the end position of the fourth time domain resource and the start position of the second time domain resource is less than the first duration, the network device receives the first uplink transmission, and / or the network device does not send the first downlink transmission;

[0508] Method 21-3: When the time interval between the end position of the fourth time domain resource and the starting position of the second time domain resource is greater than or equal to the first duration, the network device does not receive the first uplink transmission, and / or the network device sends the first downlink transmission.

[0509] For method 21-1, the network device sends dynamic scheduling of downlink transmission, and the terminal device is semi-statically configured for uplink transmission, wherein, for the terminal device, the time interval between the last symbol of the time domain resources occupied by the uplink transmission after considering the influence of the TA and the first symbol of the time domain resources occupied by the downlink transmission is less than the third time length, or the time interval between the last symbol of the time domain resources occupied by the downlink transmission and the first symbol of the time domain resources occupied by the uplink transmission after considering the influence of the TA is less than the second time length, then the network device does not receive the semi-statically configured uplink transmission, and / or the network device sends dynamically scheduled downlink transmission.

[0510] For methods 21-2 and 21-3, the network device sends dynamic scheduling of downlink transmission, and the terminal device is semi-statically configured with uplink transmission, wherein, for the terminal device, the time interval between the last symbol of the time domain resources occupied by the uplink transmission after considering the influence of the TA and the first symbol of the time domain resources occupied by the downlink transmission is less than the third duration, or, the time interval between the last symbol of the time domain resources occupied by the downlink transmission and the first symbol of the time domain resources occupied by the uplink transmission after considering the influence of the TA is less than the second duration, wherein, if the time interval between the last symbol of the first DCI for dynamically scheduling the downlink transmission and the first symbol of the time domain resources occupied by the uplink transmission after considering the influence of the TA is less than the first duration, the network device does not receive the uplink transmission, and / or the network device sends the downlink transmission; otherwise, the network device receives the uplink transmission, and / or the network device sends the downlink transmission.

[0511] Collision Mode 2: Situation D

[0512] In some embodiments, the network devices communicate in a target-based manner, including:

[0513] Mode 22-1: The network device receives the first uplink transmission, and / or the network device does not send the first downlink transmission

[0514] For method 22-1, the network device sends a dynamic schedule of uplink transmission to the terminal device, the terminal device receives the dynamic schedule of uplink transmission, and the terminal device is semi-statically configured for downlink transmission, wherein, for the terminal device, the time interval between the last symbol of the time domain resources occupied by the uplink transmission after considering the influence of the TA and the first symbol of the time domain resources occupied by the downlink transmission is less than the third time length, or the time interval between the last symbol of the time domain resources occupied by the downlink transmission and the first symbol of the time domain resources occupied by the uplink transmission after considering the influence of the TA is less than the second time length, then the network device receives the semi-statically configured uplink transmission, and / or the network device does not send the semi-statically configured downlink transmission.

[0515] Collision Mode 2: Case E

[0516] In some embodiments, the network devices communicate in a target-based manner, including:

[0517] Mode 23-1: The network device does not receive the first uplink transmission, and / or the network device sends the first downlink transmission.

[0518] For method 23-1, if the network device instructs the terminal device to transmit SSB, and the terminal device is semi-statically configured for uplink transmission or receives dynamic scheduling of uplink transmission, wherein, for the terminal device, the time interval between the last symbol of the time domain resources occupied by the uplink transmission after considering the influence of the TA and the first symbol of the time domain resources occupied by the downlink transmission is less than the third time length, or the time interval between the last symbol of the time domain resources occupied by the downlink transmission and the first symbol of the time domain resources occupied by the uplink transmission after considering the influence of the TA is less than the second time length, then the network device does not receive the semi-statically configured uplink transmission, and / or the network device sends SSB.

[0519] Collision Mode 2: Case F

[0520] In some embodiments, the network device communicates in a target-based manner, including one of the following situations:

[0521] Mode 24-1: The network device receives the first uplink transmission, and / or the network device does not send the first downlink transmission;

[0522] Mode 24-2: The network device does not receive the first uplink transmission, and / or the network device sends the first downlink transmission;

[0523] Method 24-3: The network device receives the first uplink transmission and sends the first downlink transmission.

[0524] For method 24-1, if the terminal device is semi-statically configured for downlink transmission or receives dynamic scheduling of downlink transmission, and the terminal device is triggered by the higher layer to transmit uplink on a valid RO, wherein, for the terminal device, the time interval between the last symbol of the time domain resources occupied by the uplink transmission after considering the influence of the TA and the first symbol of the time domain resources occupied by the downlink transmission is less than a third time length, or the time interval between the last symbol of the time domain resources occupied by the downlink transmission and the first symbol of the time domain resources occupied by the uplink transmission after considering the influence of the TA is less than a second time length, then the network device receives the uplink transmission on the valid RO, and / or the network device does not send the semi-statically configured or dynamically scheduled downlink transmission.

[0525] For method 24-2, if the terminal device is semi-statically configured for downlink transmission or receives dynamic scheduling for downlink transmission, and the terminal device is triggered by the higher layer to transmit uplink on a valid RO, wherein, for the terminal device, the time interval between the last symbol of the time domain resources occupied by the uplink transmission after considering the influence of the TA and the first symbol of the time domain resources occupied by the downlink transmission is less than a third time length, or the time interval between the last symbol of the time domain resources occupied by the downlink transmission and the first symbol of the time domain resources occupied by the uplink transmission after considering the influence of the TA is less than a second time length, then the network device does not receive the uplink transmission on the valid RO, and / or the network device sends the downlink transmission.

[0526] For method 24-3, if the terminal device is semi-statically configured with downlink transmission or receives dynamic scheduling of downlink transmission, and the terminal device is triggered by the higher layer to perform uplink transmission on a valid RO, wherein, for the terminal device, the time interval between the last symbol of the time domain resources occupied by the uplink transmission after considering the influence of the TA and the first symbol of the time domain resources occupied by the downlink transmission is less than the third time length, or the time interval between the last symbol of the time domain resources occupied by the downlink transmission and the first symbol of the time domain resources occupied by the uplink transmission after considering the influence of the TA is less than the second time length, then the network device sends downlink transmission and receives uplink transmission on a valid RO, which can meet the needs of the terminal device to determine whether to send uplink transmission or receive downlink transmission based on its own implementation.

[0527] In some embodiments, the network device not sending the first downlink transmission in collision mode 2 includes:

[0528] The network device does not send the first downlink transmission on the first time domain resource; or,

[0529] If the second time domain resource is located before the first time domain resource, the network device does not send the first downlink channel or signal in the first downlink transmission; or,

[0530] If the first time domain resource is located before the second time domain resource, the network device does not send the last downlink channel or signal in the first downlink transmission.

[0531] In some embodiments, the network device not receiving the first uplink transmission in collision mode 2 includes:

[0532] The network device does not receive the first uplink transmission on the second time domain resource; or,

[0533] If the first time domain resource is located before the second time domain resource, the network device does not receive the first uplink channel or signal in the first uplink transmission; or,

[0534] If the second time domain resource is located before the first time domain resource, the network device does not receive the last uplink channel or signal in the first uplink transmission.

[0535] In some embodiments, for a network device or a terminal device, the target mode is determined based on at least one of the following information:

[0536] Preset rules;

[0537] Configuration information of network devices;

[0538] the priority of the channel or signal included in the first downlink transmission;

[0539] the priority of the channel or signal included in the first uplink transmission;

[0540] The first downlink transmission includes a channel or a signal;

[0541] The first uplink transmission includes a channel or a signal.

[0542] In some embodiments, the terminal device determines the priority between dynamically scheduled uplink transmission and dynamically scheduled downlink transmission according to a preset rule or first configuration information of the network device.

[0543] Taking the target mode based on the priority of the channel or signal included in the first downlink transmission as an example, if the priority of the first downlink transmission is low, and the situation where the first downlink transmission collides with the first uplink transmission is situation A, the terminal device executes mode 1-1 and the network device executes mode 13-1.

[0544] Taking the target mode based on the priority of the channel or signal included in the first uplink transmission as an example, if the priority of the first uplink transmission is low, and the situation where the first downlink transmission and the first uplink transmission collide is situation A, then the target mode used by the terminal device is any one of mode 1-2, mode 1-3, mode 1-4, mode 1-5 and mode 1-6.

[0545] If the target mode is to be determined based on the channel or signal included in the first downlink transmission, then the first downlink transmission includes different channels or signals, and the corresponding target modes are different.

[0546] In one example, when the first downlink transmission includes a PDSCH scheduled in a DCI format, the target mode adopted by the terminal device is mode 1-1.

[0547] In one example, when the first downlink transmission includes a CSI-RS scheduled in a DCI format, the target mode adopted by the terminal device is mode 1-1.

[0548] If the target mode is to be determined based on the channel or signal included in the first uplink transmission, then the first uplink transmission includes different channels or signals, and the corresponding target modes are different.

[0549] In one example, when the first uplink transmission includes one of PUSCH, PUCCH and PRACH scheduled in DCI format, the terminal device behaves in any of mode 1-1, mode 1-2, mode 1-3, mode 1-4, mode 1-5 and mode 1-6.

[0550] In one example, when the first uplink transmission includes an SRS scheduled in a DCI format, the terminal device behaves in mode 1-1, 1-2, or 1-7.

[0551] In one example, when the dynamically scheduled downlink transmission includes a PDSCH scheduled in a DCI format, the behavior of the terminal device is the above-mentioned method 1-1; otherwise, the behavior of the terminal device is the above-mentioned method 1-2 or method 1-3 or method 1-5.

[0552] In one example, when the dynamically scheduled downlink transmission includes CSI-RS scheduled in DCI format, the behavior of the terminal device is the above-mentioned method 1-2 or method 1-3 or method 1-5, otherwise, the behavior of the terminal device is the above-mentioned method 1-1.

[0553] In one example, when the dynamically scheduled uplink transmission includes at least one of PUSCH, PUCCH and PRACH scheduled in DCI format, the behavior of the terminal device is the above-mentioned method 1-1 or method 1-2 or method 1-3.

[0554] In one example, when the dynamically scheduled uplink transmission includes an SRS scheduled in a DCI format, the behavior of the terminal device is the above-mentioned mode 1-1, mode 1-2, or mode 1-5.

[0555] In one example, when the dynamically scheduled downlink transmission includes a PDSCH scheduled in a DCI format and the dynamically scheduled uplink transmission includes a PRACH scheduled in a DCI format, the behavior of the terminal device is the above-mentioned method 1-1.

[0556] In one example, when the dynamically scheduled downlink transmission includes CSI-RS scheduled in DCI format, and the dynamically scheduled uplink transmission includes PUSCH or PUCCH scheduled in DCI format, the behavior of the terminal device is the above-mentioned method 1-2 or method 1-3.

[0557] In one example, when the semi-statically configured downlink transmission includes a PDCCH in a Type-0 / 0A / 1 / 2-PDCCH CSS configured with common higher layer parameters, the behavior of the terminal device is the above-mentioned method 2-2.

[0558] In one example, when the semi-statically configured downlink transmission includes a PDCCH configured by a higher layer, the behavior of the terminal device is the above-mentioned method 2-2; otherwise, the behavior of the terminal device is the above-mentioned method 2-1.

[0559] In one example, when the semi-statically configured uplink transmission includes a PUCCH configured by a higher layer, and the PUCCH is used to carry a scheduling request SR, the behavior of the terminal device is the above-mentioned method 2-1.

[0560] In one example, when the semi-statically configured downlink transmission includes a PDCCH configured by a higher layer, the behavior of the terminal device is the above-mentioned method 2-2; otherwise, when the semi-statically configured uplink transmission includes a PUCCH configured by a higher layer, and the PUCCH is used to carry a scheduling request SR, the behavior of the terminal device is the above-mentioned method 2-1; otherwise, the behavior of the terminal device is the above-mentioned method 2-2.

[0561] In one example, when the semi-statically configured uplink transmission includes at least one of PUSCH and PUCCH configured by high-layer parameters, the behavior of the terminal device is the above-mentioned method 3-1.

[0562] In one example, when the semi-statically configured uplink transmission includes an SRS configured by higher-layer parameters, the terminal device behaves in the above-mentioned manner 3-2.

[0563] In one example, when the dynamically scheduled downlink transmission includes a CSI-RS scheduled in a DCI format, the terminal device behaves in the above-mentioned manner 3-2.

[0564] An embodiment of the present application also provides a wireless communication method, as shown in FIG20A , which is applied to a terminal device and includes:

[0565] S2001A. The terminal device sends the TA of the terminal device to the network device. The TA of the terminal device is used by the network device to schedule the first uplink transmission.

[0566] An embodiment of the present application also provides a wireless communication method, as shown in FIG20B , applied to a network device, including:

[0567] S2001B. The network device receives the TA of the terminal device sent by the terminal device, where the TA of the terminal device is used by the network device to schedule the first uplink transmission.

[0568] In an embodiment of the present application, the terminal device reports its own TA to the network device, so that when the network device schedules the first uplink transmission, it determines the first time domain resources for the first uplink transmission based on the TA of the terminal device, thereby avoiding collision between the first downlink transmission and the first uplink transmission in the time domain.

[0569] In the embodiment of the present application, the manner in which the first downlink transmission and the first uplink transmission collide in the time domain includes the above-mentioned collision manner 1 and / or collision manner 2.

[0570] It is understandable that the records of collision mode 1 and collision mode 2 can be found in the records of the above collision modes, and will not be repeated here.

[0571] In some embodiments, the TA of the terminal device is determined based on at least one of the following information:

[0572] Synchronization assistance information sent by the network device;

[0573] A TA command sent by the network device;

[0574] GNSS positioning information of the terminal device.

[0575] In some embodiments, the unit of the TA sent by the terminal device includes at least one of the following:

[0576] First sampling interval; time slot; symbol.

[0577] The first sampling interval is the sampling interval for the first subcarrier spacing. If the first subcarrier spacing is 15 kHz, the first sampling interval may be Ts, where Ts = 1 / (15000 * 2048) seconds. If the first subcarrier spacing is 480 kHz, the first sampling interval may be Tc, where Tc = 1 / (48000 * 4096) seconds. The size of the first subcarrier spacing may be pre-set, configured by a network device, or agreed upon in a protocol.

[0578] The unit of TA sent by the terminal device is symbol, which can be understood as the TA value reported by the terminal device is N symbols, where N is a non-negative integer.

[0579] If the unit of TA sent by the terminal device is the first sampling interval or symbol, the TA value reported by the terminal device is relatively accurate, and the network device can perform scheduling avoidance at the symbol level.

[0580] If the unit of TA sent by the terminal device is time slot, the network device can perform scheduling avoidance at the time slot level.

[0581] In an embodiment of the present application, in an NTN network environment, the TA value of the terminal device will change with the movement of the satellite. The terminal device can send the TA to the network device based on the change in the TA value or send the TA to the network device based on a set period, so that the network device can obtain a TA that matches the TA of the terminal device.

[0582] It should be noted that in the NTN network environment, the TA value of the terminal device will change with the movement of the satellite. If the network equipment wants to obtain an accurate TA value for scheduling, the terminal device is required to report the TA value frequently, which may lead to increased network overhead.

[0583] The wireless communication method provided in the embodiment of the present application, when a compact terminal HD-UE that does not support the simultaneous transmission and reception feature is introduced into the NR-NTN system, according to the wireless communication method provided in the embodiment of the present application, the communication behavior of the HD-UE in the case of collision of different uplink channels and downlink channels can be standardized, so that the HD-UE can communicate normally in the NR-NTN service cell operating in FDD mode, achieve better data transmission throughput, and improve communication reliability and efficiency.

[0584] The preferred embodiments of the present application are described in detail above in conjunction with the accompanying drawings. However, the present application is not limited to the specific details in the above embodiments. Within the technical concept of the present application, the technical solution of the present application can be subjected to a variety of simple modifications, and these simple modifications all fall within the scope of protection of the present application. For example, the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present application will no longer describe the various possible combinations separately. For another example, the various different embodiments of the present application can also be arbitrarily combined, as long as they do not violate the idea of ​​the present application, they should also be regarded as the contents disclosed in the present application. For another example, under the premise of no conflict, the various embodiments and / or the technical features in each embodiment described in the present application can be arbitrarily combined with the prior art, and the technical solution obtained after the combination should also fall within the scope of protection of the present application.

[0585] It should also be understood that in the various method embodiments of the present application, the sequence numbers of the above-mentioned processes do not imply a precedence in the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application. In addition, in the embodiments of the present application, the terms "downlink," "uplink," and "sidelink" are used to indicate the transmission direction of signals or data, where "downlink" is used to indicate the first direction of transmission of signals or data from a site to a user equipment in a cell, "uplink" is used to indicate the second direction of transmission of signals or data from a user equipment in a cell to a site, and "sidelink" is used to indicate the third direction of transmission of signals or data from user equipment 1 to user equipment 2. For example, "downlink signal" indicates that the transmission direction of the signal is the first direction. In addition, in the embodiments of the present application, the term "and / or" is merely a description of the association relationship between associated objects, indicating that three relationships can exist. Specifically, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0586] FIG21 is a first schematic diagram of the structure of a terminal device provided in an embodiment of the present application. As shown in FIG21 , the terminal device 2100 includes:

[0587] The first communication unit 2101 is configured to communicate based on a target manner if it is determined that the first downlink transmission and the first uplink transmission collide in the time domain based on the first time domain resources and the second time domain resources, wherein the first time domain resources are used for the first downlink transmission, the second time domain resources are used for the first uplink transmission, and the second time domain resources are determined based on the TA of the terminal device.

[0588] It is understandable that the terminal device also includes a storage unit configured to store indication information indicating the first time domain resource and the second time domain resource.

[0589] In some embodiments, the first downlink transmission and the first uplink transmission collide in the time domain, including:

[0590] The first time domain resource and the second time domain resource overlap in the time domain, wherein the third time domain resource includes a portion where the first time domain resource and the second time domain resource overlap in the time domain.

[0591] In some embodiments, the first communication unit 2101 is further configured to:

[0592] sending the first uplink transmission on the third time domain resource; and / or,

[0593] Not receiving the first downlink transmission on the third time domain resource;

[0594] The first downlink transmission is a downlink transmission scheduled by first downlink control information DCI, and the first uplink transmission is an uplink transmission scheduled by a second DCI.

[0595] In some embodiments, the first communication unit 2101 is further configured to include one of the following situations:

[0596] not sending the first uplink transmission on the third time domain resource, and / or receiving the first downlink transmission on the third time domain resource;

[0597] When the time interval between the end position of the fourth time domain resource and the start position of the second time domain resource is less than a first duration, sending the first uplink transmission on the third time domain resource, and / or not receiving the first downlink transmission on the third time domain resource;

[0598] When the time interval between the end position of the fourth time domain resource and the start position of the second time domain resource is greater than or equal to the first duration, not sending the first uplink transmission on the third time domain resource, and / or receiving the first downlink transmission on the third time domain resource;

[0599] When the time interval between the end position of the fourth time domain resource and the start position of the third time domain resource is less than the first duration, sending the first uplink transmission on the third time domain resource, and / or not receiving the first downlink transmission on the third time domain resource;

[0600] When the time interval between the end position of the fourth time domain resource and the start position of the third time domain resource is greater than or equal to the first duration, not sending the first uplink transmission on the third time domain resource, and / or receiving the first downlink transmission on the third time domain resource;

[0601] The fourth time domain resource is used for the first DCI transmission;

[0602] The first downlink transmission is a downlink transmission scheduled by a first DCI, and the first uplink transmission is an uplink transmission scheduled by a second DCI.

[0603] Based on the implementation of the terminal device, determine whether to send the first uplink transmission or receive the first downlink transmission on the third time domain resource, wherein the first downlink transmission is a downlink transmission scheduled by the first DCI, and the first uplink transmission is an uplink transmission scheduled by the second DCI.

[0604] In some embodiments, the first communication unit 2101 is further configured as one of the following:

[0605] Sending the first uplink transmission on the third time domain resource, and / or not receiving the first downlink transmission on the third time domain resource;

[0606] not sending the first uplink transmission on the third time domain resource, and / or receiving the first downlink transmission on the third time domain resource;

[0607] Determining whether to send the first uplink transmission or receive the first downlink transmission on the third time domain resource based on the implementation of the terminal device;

[0608] The first downlink transmission is a semi-statically configured downlink transmission, and the first uplink transmission is a semi-statically configured uplink transmission.

[0609] In some embodiments, the first communication unit 2101 is further configured as one of the following:

[0610] not sending the first uplink transmission on the third time domain resource, and / or receiving the first downlink transmission on the third time domain resource;

[0611] When the time interval between the end position of the fourth time domain resource and the start position of the second time domain resource is less than a first duration, sending the first uplink transmission on the third time domain resource, and / or not receiving the first downlink transmission on the third time domain resource;

[0612] When the time interval between the end position of the fourth time domain resource and the start position of the second time domain resource is greater than or equal to the first duration, not sending the first uplink transmission on the third time domain resource, and / or receiving the first downlink transmission on the third time domain resource;

[0613] When the time interval between the end position of the fourth time domain resource and the start position of the third time domain resource is less than the first duration, sending the first uplink transmission on the third time domain resource, and / or not receiving the first downlink transmission on the third time domain resource;

[0614] When the time interval between the end position of the fourth time domain resource and the start position of the third time domain resource is greater than or equal to the first duration, not sending the first uplink transmission on the third time domain resource, and / or receiving the first downlink transmission on the third time domain resource;

[0615] The fourth time domain resource is used for the first DCI transmission;

[0616] The first downlink transmission is a downlink transmission scheduled by a first DCI, and the first uplink transmission is an uplink transmission configured semi-statically.

[0617] In some embodiments, the first communication unit 2101 is further configured to:

[0618] sending the first uplink transmission on the third time domain resource; and / or,

[0619] Not receiving the first downlink transmission on the third time domain resource;

[0620] The first downlink transmission is a semi-statically configured downlink transmission, and the first uplink transmission is an uplink transmission scheduled by the second DCI.

[0621] In some embodiments, the first communication unit 2101 is further configured to

[0622] not sending the first uplink transmission on the third time domain resource; and / or,

[0623] receiving the first downlink transmission on the third time domain resource; wherein,

[0624] The first downlink transmission is a synchronization signal block SSB, and the first uplink transmission is an uplink transmission scheduled by the second DCI or an uplink transmission configured semi-statically.

[0625] In some embodiments, the first communication unit 2101 is further configured as one of the following:

[0626] Sending the first uplink transmission on the third time domain resource, and / or not receiving the first downlink transmission on the third time domain resource;

[0627] not sending the first uplink transmission on the third time domain resource, and / or receiving the first downlink transmission on the third time domain resource;

[0628] Determining whether to send the first uplink transmission or receive the first downlink transmission on the third time domain resource based on the implementation of the terminal device;

[0629] The first downlink transmission is a downlink transmission scheduled by a first DCI or a downlink transmission configured semi-statically, and the first uplink transmission is an uplink transmission on a random access channel transmission opportunity RO.

[0630] In some embodiments, the third time domain resource includes a portion of the first time domain resource and the second time domain resource that overlaps in the time domain, including:

[0631] The third time domain resource is the portion where the first time domain resource and the second time domain resource overlap in the time domain; or,

[0632] The third time domain resource is a time unit including a portion where the first time domain resource and the second time domain resource overlap in the time domain.

[0633] In some embodiments, not receiving the first downlink transmission on the third time domain resource includes:

[0634] not receiving the first downlink transmission on the first time domain resource; or,

[0635] not receiving the symbol located on the third time domain resource in the first downlink transmission; or,

[0636] The downlink channel or signal including the third time domain resource in the first downlink transmission is not received.

[0637] In some embodiments, not sending the first uplink transmission on the third time domain resource includes:

[0638] not sending the first uplink transmission on the second time domain resource; or,

[0639] not sending the symbol located on the third time domain resource in the first uplink transmission; or,

[0640] The uplink channel or signal including the third time domain resource in the first uplink transmission is not sent.

[0641] In some embodiments, the first downlink transmission and the first uplink transmission collide in the time domain, including:

[0642] The time interval between the end position of the first time domain resource and the start position of the second time domain resource is less than a second duration; or,

[0643] The time interval between the end position of the second time domain resource and the start position of the first time domain resource is less than a third duration.

[0644] In some embodiments, the first communication unit 2101 is further configured as one of the following:

[0645] sending the first uplink transmission, and / or not receiving the first downlink transmission;

[0646] not sending the first uplink transmission, and / or receiving the first downlink transmission;

[0647] When the time interval between the end position of the fourth time domain resource and the start position of the second time domain resource is less than the first duration, sending the first uplink transmission, and / or not receiving the first downlink transmission;

[0648] When the time interval between the end position of the fourth time domain resource and the start position of the second time domain resource is greater than or equal to the first duration, not sending the first uplink transmission, and / or receiving the first downlink transmission;

[0649] determining whether to send the first uplink transmission or receive the first downlink transmission based on an implementation of the terminal device;

[0650] The fourth time domain resource is used for the first DCI transmission; the first downlink transmission is a downlink transmission scheduled by the first DCI, and the first uplink transmission is an uplink transmission scheduled by the second DCI.

[0651] In some embodiments, the first communication unit 2101 is further configured as one of the following:

[0652] sending the first uplink transmission, and / or not receiving the first downlink transmission;

[0653] not sending the first uplink transmission, and / or receiving the first downlink transmission;

[0654] determining whether to send the first uplink transmission or receive the first downlink transmission based on an implementation of the terminal device;

[0655] The first downlink transmission is a semi-statically configured downlink transmission, and the first uplink transmission is a semi-statically configured uplink transmission.

[0656] In some embodiments, the first communication unit 2101 is further configured as one of the following:

[0657] not sending the first uplink transmission, and / or receiving the first downlink transmission;

[0658] When the time interval between the end position of the fourth time domain resource and the start position of the second time domain resource is less than the first duration, sending the first uplink transmission, and / or not receiving the first downlink transmission;

[0659] When the time interval between the end position of the fourth time domain resource and the start position of the second time domain resource is greater than or equal to the first duration, not sending the first uplink transmission, and / or receiving the first downlink transmission;

[0660] The fourth time domain resource is used for the first DCI transmission, the first downlink transmission is a downlink transmission scheduled by the first DCI, and the first uplink transmission is a semi-statically configured uplink transmission.

[0661] In some embodiments, the first communication unit 2101 is further configured to send the first uplink transmission, and / or not receive the first downlink transmission; wherein the first downlink transmission is a semi-statically configured downlink transmission, and the first uplink transmission is an uplink transmission scheduled by the second DCI.

[0662] In some embodiments, the first communication unit 2101 is further configured to not send the first uplink transmission, and / or receive the first downlink transmission, the first downlink transmission is SSB, and the first uplink transmission is an uplink transmission scheduled by the second DCI or an uplink transmission configured semi-statically.

[0663] In some embodiments, the first communication unit 2101 is further configured as one of the following:

[0664] sending the first uplink transmission, and / or not receiving the first downlink transmission;

[0665] not sending the first uplink transmission, and / or receiving the first downlink transmission;

[0666] determining whether to send the first uplink transmission or receive the first downlink transmission based on an implementation of the terminal device;

[0667] The first downlink transmission is a downlink transmission scheduled by a first DCI or a downlink transmission configured semi-statically, and the first uplink transmission is an uplink transmission on an RO.

[0668] In some embodiments, not receiving the first downlink transmission includes:

[0669] not receiving the first downlink transmission on the first time domain resource; or,

[0670] If the second time domain resource is located before the first time domain resource, the first downlink channel or signal in the first downlink transmission is not received; or,

[0671] If the first time domain resource is located before the second time domain resource, the last downlink channel or signal in the first downlink transmission is not received.

[0672] In some embodiments, not sending the first uplink transmission includes:

[0673] not sending the first uplink transmission on the second time domain resource; or,

[0674] If the first time domain resource is located before the second time domain resource, the first uplink channel or signal in the first uplink transmission is not sent; or,

[0675] If the second time domain resource is located before the first time domain resource, the last uplink channel or signal in the first uplink transmission is not sent.

[0676] In some embodiments, the first duration is determined based on a preparation time for uplink transmission.

[0677] In some embodiments, the second duration is the length of the transition time from receiving to sending; and / or,

[0678] The third duration is the length of the transition time from sending to receiving.

[0679] In some embodiments, the downlink transmission scheduled by the first DCI includes at least one of the following situations:

[0680] Physical downlink shared channel PDSCH scheduled in DCI format;

[0681] Channel State Indicator Reference Signal CSI-RS scheduled in DCI format.

[0682] In some embodiments, the semi-statically configured downlink transmission includes at least one of the following situations:

[0683] Physical downlink control channel PDCCH configured by higher layers;

[0684] PDSCH configured by higher layers;

[0685] CSI-RS configured by higher layers;

[0686] Downlink Positioning Reference Channel (DL PRS) configured by higher layers.

[0687] In some embodiments, the uplink transmission scheduled by the second DCI includes at least one of the following situations:

[0688] Physical uplink shared channel PUSCH scheduled in DCI format;

[0689] Physical uplink control channel PUCCH scheduled in DCI format;

[0690] Physical random access channel PRACH scheduled in DCI format;

[0691] Sounding Reference Signal (SRS) scheduled in DCI format.

[0692] In some embodiments, the semi-statically configured uplink transmission includes at least one of the following situations:

[0693] SRS configured at high level;

[0694] PUCCH configured by higher layers;

[0695] PUSCH configured by higher layers.

[0696] In some embodiments, the target mode is determined based on at least one of the following information:

[0697] Preset rules;

[0698] Configuration information of network devices;

[0699] the priority of the channel or signal included in the first downlink transmission;

[0700] the priority of the channel or signal included in the first uplink transmission;

[0701] The first downlink transmission includes a channel or a signal;

[0702] The first uplink transmission includes a channel or a signal.

[0703] In some embodiments, the TA of the terminal device is determined based on at least one of the following information:

[0704] Synchronous auxiliary information sent by network devices;

[0705] TA command sent by the network device;

[0706] GNSS positioning information of the terminal device.

[0707] It is understandable that the terminal device may further include a first determination unit configured to determine the first time domain resource and the second time domain resource.

[0708] In an embodiment of the present application, the first communication unit in the terminal device is configured to send the TA of the terminal device to the network device.

[0709] The first communication unit in the terminal device may be implemented by a transceiver in the terminal device. The first determination unit in the terminal device may be implemented by a processor in the terminal device.

[0710] FIG22 is a schematic diagram of the first structure of a network device provided in an embodiment of the present application. As shown in FIG22 , the network device 2200 includes:

[0711] The second communication unit 2201 is configured as follows:

[0712] Sending a first downlink transmission and receiving a first uplink transmission; or,

[0713] If it is determined according to the first time domain resource and the second time domain resource that the first downlink transmission and the first uplink transmission collide in the time domain, communicating based on the target mode;

[0714] The first time domain resource is a time domain resource for the terminal device to receive the first downlink transmission, the second time domain resource is a time domain resource for the terminal device to send the first uplink transmission, and the second time domain resource is determined based on the TA of the terminal device.

[0715] It is understandable that the network device further includes a storage unit configured to store indication information indicating the first time domain resource and the second time domain resource.

[0716] In some embodiments, the first downlink transmission and the first uplink transmission collide in the time domain, including:

[0717] The first time domain resource and the second time domain resource overlap in the time domain, wherein the third time domain resource includes a portion where the first time domain resource and the second time domain resource overlap in the time domain.

[0718] In some embodiments, the second communication unit 2201 is further configured to receive the first uplink transmission on a seventh time domain resource; and / or not send the first downlink transmission on the seventh time domain resource;

[0719] The seventh time domain resource corresponds to the third time domain resource, the first downlink transmission is a downlink transmission scheduled by first downlink control information DCI, and the first uplink transmission is an uplink transmission scheduled by a second DCI.

[0720] In some embodiments, the second communication unit 2201 is further configured as one of the following:

[0721] not receiving the first uplink transmission on a seventh time domain resource, and / or sending the first downlink transmission on the seventh time domain resource;

[0722] When the time interval between the end position of the fourth time domain resource and the start position of the second time domain resource is less than the first duration, receiving the first uplink transmission on the seventh time domain resource, and / or not sending the first downlink transmission on the seventh time domain resource;

[0723] When the time interval between the end position of the fourth time domain resource and the start position of the second time domain resource is greater than or equal to the first duration, not receiving the first uplink transmission on the seventh time domain resource, and / or sending the first downlink transmission on the seventh time domain resource;

[0724] When the time interval between the end position of the fourth time domain resource and the start position of the third time domain resource is less than the first duration, receiving the first uplink transmission on the seventh time domain resource, and / or not sending the first downlink transmission on the seventh time domain resource;

[0725] When the time interval between the end position of the fourth time domain resource and the start position of the third time domain resource is greater than or equal to the first duration, not receiving the first uplink transmission on the seventh time domain resource, and / or sending the first downlink transmission on the seventh time domain resource;

[0726] Among them, the fourth time domain resource is the time domain resource for the terminal device to receive the first DCI, the seventh time domain resource corresponds to the third time domain resource, the first downlink transmission is the downlink transmission scheduled by the first DCI, and the first uplink transmission is the uplink transmission scheduled by the second DCI.

[0727] In some embodiments, the second communication unit 2201 is further configured to receive the first uplink transmission and send the first downlink transmission on a seventh time domain resource; wherein the seventh time domain resource corresponds to the third time domain resource, the first downlink transmission is a downlink transmission scheduled by the first DCI, and the first uplink transmission is an uplink transmission scheduled by the second DCI.

[0728] In some embodiments, the second communication unit 2201 is further configured as one of the following:

[0729] receiving the first uplink transmission on a seventh time domain resource, and / or not sending the first downlink transmission on the seventh time domain resource;

[0730] not receiving the first uplink transmission on the seventh time domain resource, and / or sending the first downlink transmission on the seventh time domain resource;

[0731] receiving the first uplink transmission and sending the first downlink transmission on the seventh time domain resource;

[0732] The seventh time domain resource corresponds to the third time domain resource, the first downlink transmission is a semi-statically configured downlink transmission, and the first uplink transmission is a semi-statically configured uplink transmission.

[0733] In some embodiments, the second communication unit 2201 is further configured as one of the following:

[0734] not receiving the first uplink transmission on a seventh time domain resource, and / or sending the first downlink transmission on the seventh time domain resource;

[0735] When the time interval between the end position of the fourth time domain resource and the start position of the second time domain resource is less than the first duration, receiving the first uplink transmission on the seventh time domain resource, and / or not sending the first downlink transmission on the seventh time domain resource;

[0736] When the time interval between the end position of the fourth time domain resource and the start position of the second time domain resource is greater than or equal to the first duration, not receiving the first uplink transmission on the seventh time domain resource, and / or sending the first downlink transmission on the seventh time domain resource;

[0737] When the time interval between the end position of the fourth time domain resource and the start position of the third time domain resource is less than the first duration, receiving the first uplink transmission on the seventh time domain resource, and / or not sending the first downlink transmission on the seventh time domain resource;

[0738] When the time interval between the end position of the fourth time domain resource and the start position of the third time domain resource is greater than or equal to the first duration, not receiving the first uplink transmission on the seventh time domain resource, and / or sending the first downlink transmission on the seventh time domain resource;

[0739] Among them, the seventh time domain resource corresponds to the third time domain resource, and the fourth time domain resource is the time domain resource for the terminal device to receive the first DCI, wherein the first downlink transmission is a downlink transmission scheduled by the first DCI, and the first uplink transmission is a semi-statically configured uplink transmission.

[0740] In some embodiments, the second communication unit 2201 is further configured to:

[0741] receiving the first uplink transmission on a seventh time domain resource; and / or,

[0742] Not sending the first downlink transmission on the seventh time domain resource;

[0743] The seventh time domain resource corresponds to the third time domain resource, the first downlink transmission is a semi-statically configured downlink transmission, and the first uplink transmission is an uplink transmission scheduled by the second DCI.

[0744] In some embodiments, the second communication unit 2201 is further configured to:

[0745] not receiving the first uplink transmission on the seventh time domain resource; and / or,

[0746] Sending the first downlink transmission on the seventh time domain resource;

[0747] Among them, the seventh time domain resource corresponds to the third time domain resource, the first downlink transmission is a synchronization signal block SSB, and the first uplink transmission is an uplink transmission scheduled by the second DCI or an uplink transmission configured semi-statically.

[0748] In some embodiments, the second communication unit 2201 is further configured as one of the following:

[0749] receiving the first uplink transmission on a seventh time domain resource, and / or not sending the first downlink transmission on the seventh time domain resource;

[0750] not receiving the first uplink transmission on the seventh time domain resource, and / or sending the first downlink transmission on the seventh time domain resource;

[0751] receiving the first uplink transmission and sending the first downlink transmission on the seventh time domain resource;

[0752] Among them, the seventh time domain resource corresponds to the third time domain resource, the first downlink transmission is a downlink transmission scheduled by the first DCI or a downlink transmission configured semi-statically, and the first uplink transmission is an uplink transmission on a random access channel transmission opportunity RO.

[0753] In some embodiments, the third time domain resource includes a portion of the first time domain resource and the second time domain resource that overlaps in the time domain, including:

[0754] The third time domain resource is the portion where the first time domain resource and the second time domain resource overlap in the time domain; or,

[0755] The third time domain resource is a time unit including a portion where the first time domain resource and the second time domain resource overlap in the time domain.

[0756] In some embodiments, not sending the first downlink transmission on the seventh time domain resource includes:

[0757] not sending the first downlink transmission on the first time domain resource; or,

[0758] not sending the symbol located on the seventh time domain resource in the first downlink transmission; or,

[0759] The downlink channel or signal including the seventh time domain resource in the first downlink transmission is not sent.

[0760] In some embodiments, not receiving the first uplink transmission on the seventh time domain resource includes:

[0761] not receiving the first uplink transmission on the second time domain resource; or,

[0762] not receiving the symbol located on the seventh time domain resource in the first uplink transmission; or,

[0763] An uplink channel or signal including the seventh time domain resource in the first uplink transmission is not received.

[0764] In some embodiments, the first downlink transmission and the first uplink transmission collide in the time domain, including:

[0765] The time interval between the end position of the first time domain resource and the start position of the second time domain resource is less than a second duration; or,

[0766] The time interval between the end position of the second time domain resource and the start position of the first time domain resource is less than a third duration.

[0767] In some embodiments, the second communication unit 2201 is further configured as one of the following:

[0768] receiving the first uplink transmission, and / or not sending the first downlink transmission;

[0769] not receiving the first uplink transmission, and / or sending the first downlink transmission;

[0770] When the time interval between the end position of the fourth time domain resource and the start position of the second time domain resource is less than a first duration, receiving the first uplink transmission, and / or not sending the first downlink transmission;

[0771] When the time interval between the end position of the fourth time domain resource and the start position of the second time domain resource is greater than or equal to the first duration, not receiving the first uplink transmission, and / or sending the first downlink transmission;

[0772] receiving the first uplink transmission and sending the first downlink transmission;

[0773] The fourth time domain resource is the time domain resource for the terminal device to receive the first DCI, the first downlink transmission is the downlink transmission scheduled by the first DCI, and the first uplink transmission is the uplink transmission scheduled by the second DCI.

[0774] In some embodiments, the second communication unit 2201 is further configured as one of the following:

[0775] receiving the first uplink transmission, and / or not sending the first downlink transmission;

[0776] not receiving the first uplink transmission, and / or sending the first downlink transmission;

[0777] receiving the first uplink transmission and sending the first downlink transmission;

[0778] The first downlink transmission is a semi-statically configured downlink transmission, and the first uplink transmission is a semi-statically configured uplink transmission.

[0779] In some embodiments, the second communication unit 2201 is further configured as one of the following:

[0780] not receiving the first uplink transmission, and / or sending the first downlink transmission;

[0781] When the time interval between the end position of the fourth time domain resource and the start position of the second time domain resource is less than a first duration, receiving the first uplink transmission, and / or not sending the first downlink transmission;

[0782] When the time interval between the end position of the fourth time domain resource and the start position of the second time domain resource is greater than or equal to the first duration, not receiving the first uplink transmission, and / or sending the first downlink transmission;

[0783] Among them, the fourth time domain resource is the time domain resource for the terminal device to receive the first DCI, the first downlink transmission is a downlink transmission scheduled by the first DCI, and the first uplink transmission is a semi-statically configured uplink transmission.

[0784] In some embodiments, the second communication unit 2201 is further configured to:

[0785] receiving the first uplink transmission, and / or not sending the first downlink transmission;

[0786] The first downlink transmission is a semi-statically configured downlink transmission, and the first uplink transmission is an uplink transmission scheduled by the second DCI.

[0787] In some embodiments, the second communication unit 2201 is further configured to:

[0788] not receiving the first uplink transmission, and / or sending the first downlink transmission;

[0789] The first downlink transmission is SSB, and the first uplink transmission is an uplink transmission scheduled by the second DCI or an uplink transmission configured semi-statically.

[0790] In some embodiments, the second communication unit 2201 is further configured to:

[0791] receiving the first uplink transmission, and / or not sending the first downlink transmission;

[0792] not receiving the first uplink transmission, and / or sending the first downlink transmission;

[0793] receiving the first uplink transmission and sending the first downlink transmission;

[0794] The first downlink transmission is a downlink transmission scheduled by a first DCI or a downlink transmission configured semi-statically, and the first uplink transmission is an uplink transmission on an RO.

[0795] In some embodiments, not sending the first downlink transmission includes:

[0796] not sending the first downlink transmission on the first time domain resource; or,

[0797] If the second time domain resource is located before the first time domain resource, the first downlink channel or signal in the first downlink transmission is not sent; or,

[0798] If the first time domain resource is located before the second time domain resource, the last downlink channel or signal in the first downlink transmission is not sent.

[0799] In some embodiments, not receiving the first uplink transmission includes:

[0800] not receiving the first uplink transmission on the second time domain resource; or,

[0801] If the first time domain resource is located before the second time domain resource, the first uplink channel or signal in the first uplink transmission is not received; or,

[0802] If the second time domain resource is located before the first time domain resource, the last uplink channel or signal in the first uplink transmission is not received.

[0803] In some embodiments, the first duration is determined based on a preparation time for uplink transmission.

[0804] In some embodiments, the second duration is the length of the transition time from the terminal device switching from receiving to sending; and / or,

[0805] The third duration is the length of the transition time from sending to receiving of the terminal device.

[0806] In some embodiments, the downlink transmission scheduled by the first DCI includes at least one of the following situations:

[0807] Physical downlink shared channel PDSCH scheduled in DCI format;

[0808] Channel State Indicator Reference Signal CSI-RS scheduled in DCI format.

[0809] In some embodiments, the semi-statically configured downlink transmission includes at least one of the following situations:

[0810] Physical downlink control channel PDCCH configured by higher layers;

[0811] PDSCH configured by higher layers;

[0812] CSI-RS configured by higher layers;

[0813] Downlink Positioning Reference Channel (DL PRS) configured by higher layers.

[0814] In some embodiments, the uplink transmission scheduled by the second DCI includes at least one of the following situations:

[0815] Physical uplink shared channel PUSCH scheduled in DCI format;

[0816] Physical uplink control channel PUCCH scheduled in DCI format;

[0817] Physical random access channel PRACH scheduled in DCI format;

[0818] Sounding Reference Signal (SRS) scheduled in DCI format.

[0819] In some embodiments, the semi-statically configured uplink transmission includes at least one of the following situations:

[0820] SRS configured at high level;

[0821] PUCCH configured by higher layers;

[0822] PUSCH configured by higher layers.

[0823] In some embodiments, the target mode is determined based on at least one of the following information:

[0824] Preset rules;

[0825] Configuration information of the network device;

[0826] the priority of the channel or signal included in the first downlink transmission;

[0827] the priority of the channel or signal included in the first uplink transmission;

[0828] The first downlink transmission includes a channel or a signal;

[0829] The first uplink transmission includes a channel or a signal.

[0830] In some embodiments, the TA of the terminal device is determined based on at least one of the following information:

[0831] Synchronization assistance information sent by the network device;

[0832] A TA command sent by the network device;

[0833] GNSS positioning information of the terminal device.

[0834] It is understandable that the network device may further include a second determining unit configured to determine the first time domain resource and the second time domain resource.

[0835] In the embodiment of the present application, the second communication unit in the network device is configured to receive the TA of the terminal device sent by the terminal device.

[0836] The second communication unit in the network device may be implemented by a transceiver in the network device. The second determination unit in the network device may be implemented by a processor in the network device.

[0837] Those skilled in the art should understand that the relevant description of the above-mentioned terminal equipment or network equipment in the embodiments of the present application can be understood by referring to the relevant description of the wireless communication method in the embodiments of the present application.

[0838] Figure 23 is a schematic diagram of a communication device 2300 provided in an embodiment of the present application. The communication device can be a terminal device or a network device. The communication device 2300 shown in Figure 23 includes a processor 2310, which can call and execute a computer program from a memory to implement the method in the embodiment of the present application.

[0839] Optionally, as shown in FIG23 , the communication device 2300 may further include a memory 2320. The processor 2310 may call and execute a computer program from the memory 2320 to implement the method in the embodiment of the present application.

[0840] The memory 2320 may be a separate device independent of the processor 2310 or may be integrated into the processor 2310 .

[0841] Optionally, as shown in FIG23 , the communication device 2300 may further include a transceiver 2330 , and the processor 2310 may control the transceiver 2330 to communicate with other devices, specifically, to send information or data to other devices, or to receive information or data sent by other devices.

[0842] The transceiver 2330 may include a transmitter and a receiver. The transceiver 2330 may further include an antenna, and the number of antennas may be one or more.

[0843] Optionally, the communication device 2300 may specifically be a network device in an embodiment of the present application, and the communication device 2300 may implement the corresponding processes implemented by the network device in each method in the embodiment of the present application. For the sake of brevity, they will not be repeated here.

[0844] Optionally, the communication device 2300 may specifically be a mobile terminal / terminal device of an embodiment of the present application, and the communication device 2300 may implement the corresponding processes implemented by the mobile terminal / terminal device in each method of the embodiment of the present application. For the sake of brevity, they will not be repeated here.

[0845] Figure 24 is a schematic structural diagram of a chip according to an embodiment of the present application. The chip 2400 shown in Figure 24 includes a processor 2410, which can call and run a computer program from a memory to implement the method according to the embodiment of the present application.

[0846] Optionally, as shown in FIG24 , the chip 2400 may further include a memory 2420 , wherein the processor 2410 may call and execute a computer program from the memory 2420 to implement the method in the embodiment of the present application.

[0847] The memory 2420 may be a separate device independent of the processor 2410 , or may be integrated into the processor 2410 .

[0848] Optionally, the chip 2400 may further include an input interface 2430. The processor 2410 may control the input interface 2430 to communicate with other devices or chips, and specifically, may obtain information or data sent by other devices or chips.

[0849] Optionally, the chip 2400 may further include an output interface 2440. The processor 2410 may control the output interface 2440 to communicate with other devices or chips, and specifically, may output information or data to other devices or chips.

[0850] Optionally, the chip can be applied to the network device in the embodiments of the present application, and the chip can implement the corresponding processes implemented by the network device in each method of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0851] Optionally, the chip can be applied to the mobile terminal / terminal device in the embodiments of the present application, and the chip can implement the corresponding processes implemented by the mobile terminal / terminal device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0852] 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.

[0853] FIG25 is a schematic block diagram of a communication system 2500 provided in an embodiment of the present application. As shown in FIG25 , the communication system 2500 includes a terminal device 2510 and a network device 2520 .

[0854] Among them, the terminal device 2510 can be used to implement the corresponding functions implemented by the terminal device in the above method, and the network device 2520 can be used to implement the corresponding functions implemented by the network device in the above method. For the sake of brevity, they are not repeated here.

[0855] It should be understood that the processor of the embodiments of the present application may be an integrated circuit chip with signal processing capabilities. During implementation, each step of the above method embodiment can be completed by hardware integrated logic circuits in the processor or software instructions. The above processor can be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. The various methods, steps, and logic block diagrams disclosed in the embodiments of the present application can be implemented or executed. The general-purpose processor can be a microprocessor or any conventional processor. The steps of the method disclosed in the embodiments of the present application can be directly implemented as a hardware decoding processor, or can be implemented by a combination of hardware and software modules in the decoding processor. The software module can be located in a storage medium mature in the art, such as random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, etc. The storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.

[0856] It is understood that the memory in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memories. 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), which is used as an external cache. By way of example and not limitation, many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct RAM bus random access memory (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0857] It should be understood that the above-mentioned memories are exemplary but not restrictive. For example, the memories in the embodiments of the present application may also be static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct RAM RAM (DR RAM), etc. In other words, the memories in the embodiments of the present application are intended to include, but are not limited to, these and any other suitable types of memories.

[0858] An embodiment of the present application also provides a computer-readable storage medium for storing a computer program.

[0859] Optionally, the computer-readable storage medium can be applied to the network device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the network device in the various methods of the embodiments of the present application. For the sake of brevity, they are not repeated here.

[0860] Optionally, the computer-readable storage medium can be applied to the mobile terminal / terminal device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the mobile terminal / terminal device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0861] An embodiment of the present application also provides a computer program product, including computer program instructions.

[0862] Optionally, the computer program product can be applied to the network device in the embodiments of the present application, and the computer program instructions enable the computer to execute the corresponding processes implemented by the network device in the various methods of the embodiments of the present application. For the sake of brevity, they are not repeated here.

[0863] Optionally, the computer program product can be applied to the mobile terminal / terminal device in the embodiments of the present application, and the computer program instructions enable the computer to execute the corresponding processes implemented by the mobile terminal / terminal device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0864] The embodiment of the present application also provides a computer program.

[0865] Optionally, the computer program can be applied to the network device in the embodiments of the present application. When the computer program runs on a computer, the computer executes the corresponding processes implemented by the network device in the various methods of the embodiments of the present application. For the sake of brevity, they are not described here.

[0866] Optionally, the computer program can be applied to the mobile terminal / terminal device in the embodiments of the present application. When the computer program runs on the computer, the computer executes the corresponding processes implemented by the mobile terminal / terminal device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0867] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0868] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0869] In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of the units is merely a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0870] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0871] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0872] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0873] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A wireless communication method, the method comprising: If the terminal device determines that the first downlink transmission and the first uplink transmission collide in the time domain based on the first time domain resources and the second time domain resources, the terminal device communicates based on a target manner, wherein the first time domain resources are used for the first downlink transmission, the second time domain resources are used for the first uplink transmission, and the second time domain resources are determined based on the timing advance TA of the terminal device.

2. The method according to claim 1, wherein: The first downlink transmission and the first uplink transmission collide in a time domain, including: The first time domain resource and the second time domain resource overlap in the time domain, wherein the third time domain resource includes a portion where the first time domain resource and the second time domain resource overlap in the time domain.

3. The method according to claim 2, wherein: The first downlink transmission is a downlink transmission scheduled by first downlink control information DCI, the first uplink transmission is an uplink transmission scheduled by a second DCI, and the terminal device communicates based on a target mode, including: The terminal device sends the first uplink transmission on the third time domain resource; and / or, The terminal device does not receive the first downlink transmission on the third time domain resource.

4. The method according to claim 2, wherein: The first downlink transmission is a downlink transmission scheduled by a first DCI, the first uplink transmission is an uplink transmission scheduled by a second DCI, and the terminal device communicates based on a target mode, including one of the following situations: The terminal device does not send the first uplink transmission on the third time domain resource, and / or the terminal device receives the first downlink transmission on the third time domain resource; When the time interval between the end position of the fourth time domain resource and the start position of the second time domain resource is less than the first duration, the terminal device sends the first uplink transmission on the third time domain resource, and / or the terminal device does not receive the first downlink transmission on the third time domain resource; When the time interval between the end position of the fourth time domain resource and the start position of the second time domain resource is greater than or equal to the first duration, the terminal device does not send the first uplink transmission on the third time domain resource, and / or the terminal device receives the first downlink transmission on the third time domain resource; When the time interval between the end position of the fourth time domain resource and the start position of the third time domain resource is less than the first duration, the terminal device sends the first uplink transmission on the third time domain resource, and / or the terminal device does not receive the first downlink transmission on the third time domain resource; When the time interval between the end position of the fourth time domain resource and the start position of the third time domain resource is greater than or equal to the first duration, the terminal device does not send the first uplink transmission on the third time domain resource, and / or the terminal device receives the first downlink transmission on the third time domain resource; The fourth time domain resource is used for the first DCI transmission.

5. The method according to claim 2, wherein: The first downlink transmission is a downlink transmission scheduled by a first DCI, the first uplink transmission is an uplink transmission scheduled by a second DCI, and the terminal device communicates based on a target mode, including: The terminal device determines whether to send the first uplink transmission or receive the first downlink transmission on the third time domain resource based on the implementation of the terminal device.

6. The method according to claim 2, wherein: The first downlink transmission is a semi-statically configured downlink transmission, the first uplink transmission is a semi-statically configured uplink transmission, and the terminal device communicates based on a target mode, including one of the following situations: The terminal device sends the first uplink transmission on the third time domain resource, and / or the terminal device does not receive the first downlink transmission on the third time domain resource; The terminal device does not send the first uplink transmission on the third time domain resource, and / or the terminal device receives the first downlink transmission on the third time domain resource; The terminal device determines whether to send the first uplink transmission or receive the first downlink transmission on the third time domain resource based on the implementation of the terminal device.

7. The method according to claim 2, wherein: The first downlink transmission is a downlink transmission scheduled by a first DCI, the first uplink transmission is an uplink transmission configured semi-statically, and the terminal device communicates based on a target mode, including one of the following situations: The terminal device does not send the first uplink transmission on the third time domain resource, and / or the terminal device receives the first downlink transmission on the third time domain resource; When the time interval between the end position of the fourth time domain resource and the start position of the second time domain resource is less than the first duration, the terminal device sends the first uplink transmission on the third time domain resource, and / or the terminal device does not receive the first downlink transmission on the third time domain resource; When the time interval between the end position of the fourth time domain resource and the start position of the second time domain resource is greater than or equal to the first duration, the terminal device does not send the first uplink transmission on the third time domain resource, and / or the terminal device receives the first downlink transmission on the third time domain resource; When the time interval between the end position of the fourth time domain resource and the start position of the third time domain resource is less than the first duration, the terminal device sends the first uplink transmission on the third time domain resource, and / or the terminal device does not receive the first downlink transmission on the third time domain resource; When the time interval between the end position of the fourth time domain resource and the start position of the third time domain resource is greater than or equal to the first duration, the terminal device does not send the first uplink transmission on the third time domain resource, and / or the terminal device receives the first downlink transmission on the third time domain resource; The fourth time domain resource is used for the first DCI transmission.

8. The method according to claim 2, wherein: The first downlink transmission is a semi-statically configured downlink transmission, the first uplink transmission is an uplink transmission scheduled by a second DCI, and the terminal device communicates based on a target mode, including: The terminal device sends the first uplink transmission on the third time domain resource; and / or, The terminal device does not receive the first downlink transmission on the third time domain resource.

9. The method according to claim 2, wherein: The first downlink transmission is a synchronization signal block SSB, the first uplink transmission is an uplink transmission scheduled by a second DCI or an uplink transmission configured semi-statically, and the terminal device communicates based on a target mode, including: The terminal device does not send the first uplink transmission on the third time domain resource; and / or, The terminal device receives the first downlink transmission on the third time domain resource.

10. The method according to claim 2, wherein: The first downlink transmission is a downlink transmission scheduled by a first DCI or a downlink transmission configured semi-statically, the first uplink transmission is an uplink transmission on a random access channel transmission opportunity RO, and the terminal device communicates based on a target mode, including one of the following situations: The terminal device sends the first uplink transmission on the third time domain resource, and / or the terminal device does not receive the first downlink transmission on the third time domain resource; The terminal device does not send the first uplink transmission on the third time domain resource, and / or the terminal device receives the first downlink transmission on the third time domain resource; The terminal device determines whether to send the first uplink transmission or receive the first downlink transmission on the third time domain resource based on the implementation of the terminal device.

11. The method according to any one of claims 2 to 10, wherein: The third time domain resource includes a portion where the first time domain resource and the second time domain resource overlap in the time domain, including: The third time domain resource is the overlapping portion of the first time domain resource and the second time domain resource in the time domain; or, The third time domain resource is a time unit including a portion where the first time domain resource and the second time domain resource overlap in the time domain.

12. The method according to any one of claims 2 to 11, wherein: The terminal device does not receive the first downlink transmission on the third time domain resource, including: The terminal device does not receive the first downlink transmission on the first time domain resource; or, The terminal device does not receive the symbol located on the third time domain resource in the first downlink transmission; or, The terminal device does not receive the downlink channel or signal including the third time domain resource in the first downlink transmission.

13. The method according to any one of claims 2 to 11, wherein: The terminal device not sending the first uplink transmission on the third time domain resource includes: The terminal device does not send the first uplink transmission on the second time domain resource; or, The terminal device does not send the symbol located on the third time domain resource in the first uplink transmission; or, The terminal device does not send an uplink channel or signal including the third time domain resource in the first uplink transmission.

14. The method according to claim 1, wherein: The first downlink transmission and the first uplink transmission collide in a time domain, including: The time interval between the end position of the first time domain resource and the start position of the second time domain resource is less than a second duration; or, The time interval between the end position of the second time domain resource and the start position of the first time domain resource is smaller than the third duration.

15. The method according to claim 14, wherein: The first downlink transmission is a downlink transmission scheduled by a first DCI, the first uplink transmission is an uplink transmission scheduled by a second DCI, and the terminal device communicates based on a target mode, including one of the following situations: The terminal device sends the first uplink transmission, and / or the terminal device does not receive the first downlink transmission; The terminal device does not send the first uplink transmission, and / or the terminal device receives the first downlink transmission; When the time interval between the end position of the fourth time domain resource and the start position of the second time domain resource is less than the first duration, the terminal device sends the first uplink transmission, and / or the terminal device does not receive the first downlink transmission; When the time interval between the end position of the fourth time domain resource and the start position of the second time domain resource is greater than or equal to the first duration, the terminal device does not send the first uplink transmission, and / or the terminal device receives the first downlink transmission; The terminal device determines whether to send the first uplink transmission or receive the first downlink transmission based on the implementation of the terminal device; The fourth time domain resource is used for the first DCI transmission.

16. The method according to claim 14, wherein: The first downlink transmission is a semi-statically configured downlink transmission, the first uplink transmission is a semi-statically configured uplink transmission, and the terminal device communicates based on a target mode, including one of the following situations: The terminal device sends the first uplink transmission, and / or the terminal device does not receive the first downlink transmission; The terminal device does not send the first uplink transmission, and / or the terminal device receives the first downlink transmission; The terminal device determines whether to send the first uplink transmission or receive the first downlink transmission based on an implementation of the terminal device.

17. The method according to claim 14, wherein: The first downlink transmission is a downlink transmission scheduled by a first DCI, the first uplink transmission is an uplink transmission configured semi-statically, and the terminal device communicates based on a target mode, including one of the following situations: The terminal device does not send the first uplink transmission, and / or the terminal device receives the first downlink transmission; When the time interval between the end position of the fourth time domain resource and the start position of the second time domain resource is less than the first duration, the terminal device sends the first uplink transmission, and / or the terminal device does not receive the first downlink transmission; When the time interval between the end position of the fourth time domain resource and the start position of the second time domain resource is greater than or equal to the first duration, the terminal device does not send the first uplink transmission, and / or the terminal device receives the first downlink transmission; The fourth time domain resource is used for the first DCI transmission.

18. The method according to claim 14, wherein: The first downlink transmission is a semi-statically configured downlink transmission, the first uplink transmission is an uplink transmission scheduled by a second DCI, and the terminal device communicates based on a target mode, including: The terminal device sends the first uplink transmission, and / or the terminal device does not receive the first downlink transmission.

19. The method according to claim 14, wherein: The first downlink transmission is SSB, the first uplink transmission is uplink transmission scheduled by a second DCI or uplink transmission configured semi-statically, and the terminal device communicates based on a target mode, including: The terminal device does not send the first uplink transmission, and / or the terminal device receives the first downlink transmission.

20. The method according to claim 14, wherein: The first downlink transmission is a downlink transmission scheduled by a first DCI or a downlink transmission configured semi-statically, the first uplink transmission is an uplink transmission on an RO, and the terminal device communicates based on a target mode, including one of the following situations: The terminal device sends the first uplink transmission, and / or the terminal device does not receive the first downlink transmission; The terminal device does not send the first uplink transmission, and / or the terminal device receives the first downlink transmission; The terminal device determines whether to send the first uplink transmission or receive the first downlink transmission based on an implementation of the terminal device.

21. The method according to any one of claims 14 to 20, wherein: The terminal device not receiving the first downlink transmission includes: The terminal device does not receive the first downlink transmission on the first time domain resource; or, If the second time domain resource is located before the first time domain resource, the terminal device does not receive the first downlink transmission. the first downstream channel or signal; or, If the first time domain resource is located before the second time domain resource, the terminal device does not receive the last downlink channel or signal in the first downlink transmission.

22. The method according to any one of claims 14 to 20, wherein: The terminal device not sending the first uplink transmission includes: The terminal device does not send the first uplink transmission on the second time domain resource; or, If the first time domain resource is located before the second time domain resource, the terminal device does not send the first uplink channel or signal in the first uplink transmission; or, If the second time domain resource is located before the first time domain resource, the terminal device does not send the last uplink channel or signal in the first uplink transmission.

23. The method according to any one of claims 4, 7, 15, and 17, wherein: The first duration is determined based on the preparation time of the uplink transmission.

24. The method according to any one of claims 14 to 23, wherein: The second duration is the length of the transition time from receiving to sending; and / or, The third duration is the length of the transition time from sending to receiving.

25. The method according to any one of claims 3, 4, 5, 7, 10, 15, 17, 20, wherein: The downlink transmission scheduled by the first DCI includes at least one of the following situations: Physical downlink shared channel PDSCH scheduled in DCI format; Channel state indication reference signal CSI-RS scheduled in DCI format.

26. The method according to any one of claims 6, 8, 10, 16, 18, 20, wherein: The semi-statically configured downlink transmission includes at least one of the following situations: Physical downlink control channel PDCCH configured by high layers; PDSCH configured by higher layers; CSI-RS configured by high layers; Downlink Positioning Reference Channel DL PRS configured by a higher layer.

27. The method according to any one of claims 3, 4, 5, 8, 9, 15, 18, 19, wherein: The uplink transmission scheduled by the second DCI includes at least one of the following situations: Physical uplink shared channel PUSCH scheduled in DCI format; Physical uplink control channel PUCCH scheduled in DCI format; Physical random access channel PRACH scheduled in DCI format; Sounding Reference Signal SRS scheduled in DCI format.

28. The method according to any one of claims 6, 7, 9, 16, 17, and 19, wherein: The semi-statically configured uplink transmission includes at least one of the following situations: SRS configured at a high level; PUCCH configured by higher layers; PUSCH configured by higher layers.

29. The method according to any one of claims 1 to 28, wherein: The target mode is determined based on at least one of the following information: Preset rules; Configuration information of network devices; The priority of the channel or signal included in the first downlink transmission; The priority of the channel or signal included in the first uplink transmission; The first downlink transmission includes a channel or a signal; The first uplink transmission includes a channel or a signal.

30. The method according to any one of claims 1 to 29, wherein: The TA of the terminal device is determined based on at least one of the following information: Synchronous auxiliary information sent by network devices; TA command sent by network equipment; The GNSS positioning information of the terminal device.

31. A wireless communication method, the method comprising: The network device sends a first downlink transmission and receives a first uplink transmission; or, If the network device determines, based on the first time domain resource and the second time domain resource, that the first downlink transmission and the first uplink transmission collide in the time domain, the network device communicates based on the target mode; The first time domain resource is a time domain resource for the terminal device to receive the first downlink transmission, the second time domain resource is a time domain resource for the terminal device to send the first uplink transmission, and the second time domain resource is determined based on the timing advance TA of the terminal device.

32. The method according to claim 31, wherein: The first downlink transmission and the first uplink transmission collide in a time domain, including: The first time domain resource and the second time domain resource overlap in the time domain, wherein the third time domain resource includes a portion where the first time domain resource and the second time domain resource overlap in the time domain.

33. The method of claim 32, wherein: The first downlink transmission is a downlink transmission scheduled by first downlink control information DCI, the first uplink transmission is an uplink transmission scheduled by a second DCI, and the network device communicates based on a target mode, including: The network device receives the first uplink transmission on a seventh time domain resource; and / or, The network device does not send the first downlink transmission on the seventh time domain resource; Among them, the seventh time domain resource corresponds to the third time domain resource.

34. The method of claim 32, wherein: The first downlink transmission is a downlink transmission scheduled by a first DCI, the first uplink transmission is an uplink transmission scheduled by a second DCI, and the network device communicates based on a target mode, including one of the following situations: The network device does not receive the first uplink transmission on the seventh time domain resource, and / or the network device sends the first downlink transmission on the seventh time domain resource; When the time interval between the end position of the fourth time domain resource and the start position of the second time domain resource is less than the first duration, the network device receives the first uplink transmission on the seventh time domain resource, and / or the network device does not send the first downlink transmission on the seventh time domain resource; When the time interval between the end position of the fourth time domain resource and the start position of the second time domain resource is greater than or equal to the first duration, the network device does not receive the first uplink transmission on the seventh time domain resource, and / or the network device sends the first downlink transmission on the seventh time domain resource; When the time interval between the end position of the fourth time domain resource and the start position of the third time domain resource is less than the first duration, the network device receives the first uplink transmission on the seventh time domain resource, and / or the network device does not send the first downlink transmission on the seventh time domain resource; When the time interval between the end position of the fourth time domain resource and the start position of the third time domain resource is greater than or equal to the first duration, the network device does not receive the first uplink transmission on the seventh time domain resource, and / or the network device sends the first downlink transmission on the seventh time domain resource; Among them, the fourth time domain resource is the time domain resource for the terminal device to receive the first DCI, and the seventh time domain resource corresponds to the third time domain resource.

35. The method of claim 32, wherein: The first downlink transmission is a downlink transmission scheduled by a first DCI, the first uplink transmission is an uplink transmission scheduled by a second DCI, and the network device communicates based on a target mode, including: The network device receives the first uplink transmission and sends the first downlink transmission on a seventh time domain resource; wherein the seventh time domain resource corresponds to the third time domain resource.

36. The method of claim 32, wherein: The first downlink transmission is a semi-statically configured downlink transmission, the first uplink transmission is a semi-statically configured uplink transmission, and the network device communicates based on a target mode, including one of the following situations: The network device receives the first uplink transmission on the seventh time domain resource, and / or the network device does not send the first downlink transmission on the seventh time domain resource; The network device does not receive the first uplink transmission on the seventh time domain resource, and / or the network device sends the first downlink transmission on the seventh time domain resource; The network device receives the first uplink transmission and sends the first downlink transmission on the seventh time domain resource; Among them, the seventh time domain resource corresponds to the third time domain resource.

37. The method of claim 32, wherein: The first downlink transmission is a downlink transmission scheduled by a first DCI, the first uplink transmission is an uplink transmission configured semi-statically, and the network device communicates based on a target mode, including one of the following situations: The network device does not receive the first uplink transmission on the seventh time domain resource, and / or the network device Sending the first downlink transmission on the time domain resource; When the time interval between the end position of the fourth time domain resource and the start position of the second time domain resource is less than the first duration, the network device receives the first uplink transmission on the seventh time domain resource, and / or the network device does not send the first downlink transmission on the seventh time domain resource; When the time interval between the end position of the fourth time domain resource and the start position of the second time domain resource is greater than or equal to the first duration, the network device does not receive the first uplink transmission on the seventh time domain resource, and / or the network device sends the first downlink transmission on the seventh time domain resource; When the time interval between the end position of the fourth time domain resource and the start position of the third time domain resource is less than the first duration, the network device receives the first uplink transmission on the seventh time domain resource, and / or the network device does not send the first downlink transmission on the seventh time domain resource; When the time interval between the end position of the fourth time domain resource and the start position of the third time domain resource is greater than or equal to the first duration, the network device does not receive the first uplink transmission on the seventh time domain resource, and / or the network device sends the first downlink transmission on the seventh time domain resource; Among them, the fourth time domain resource is the time domain resource for the terminal device to receive the first DCI, and the seventh time domain resource corresponds to the third time domain resource.

38. The method of claim 32, wherein: The first downlink transmission is a semi-statically configured downlink transmission, the first uplink transmission is an uplink transmission scheduled by a second DCI, and the network device communicates based on a target mode, including: The network device receives the first uplink transmission on a seventh time domain resource; and / or, The network device does not send the first downlink transmission on the seventh time domain resource; Among them, the seventh time domain resource corresponds to the third time domain resource.

39. The method of claim 32, wherein: The first downlink transmission is a synchronization signal block SSB, the first uplink transmission is an uplink transmission scheduled by a second DCI or an uplink transmission configured semi-statically, and the network device communicates based on a target mode, including: The network device does not receive the first uplink transmission on the seventh time domain resource; and / or, The network device sends the first downlink transmission on the seventh time domain resource; Among them, the seventh time domain resource corresponds to the third time domain resource.

40. The method of claim 32, wherein: The first downlink transmission is a downlink transmission scheduled by a first DCI or a downlink transmission configured semi-statically, the first uplink transmission is an uplink transmission on a random access channel transmission opportunity RO, and the network device communicates based on a target mode, including one of the following situations: The network device receives the first uplink transmission on the seventh time domain resource, and / or the network device does not send the first downlink transmission on the seventh time domain resource; The network device does not receive the first uplink transmission on the seventh time domain resource, and / or the network device sends the first downlink transmission on the seventh time domain resource; The network device receives the first uplink transmission and sends the first downlink transmission on the seventh time domain resource; Among them, the seventh time domain resource corresponds to the third time domain resource.

41. A method according to any one of claims 32 to 40, wherein: The third time domain resource includes a portion where the first time domain resource and the second time domain resource overlap in the time domain, including: The third time domain resource is the overlapping portion of the first time domain resource and the second time domain resource in the time domain; or, The third time domain resource is a time unit including a portion where the first time domain resource and the second time domain resource overlap in the time domain.

42. The method according to any one of claims 33, 34, 36, 37, 38, 40, wherein: The network device not sending the first downlink transmission on the seventh time domain resource includes: The network device does not send the first downlink transmission; or, The network device does not send the symbol located on the seventh time domain resource in the first downlink transmission; or, The network device does not send a downlink channel or signal including the seventh time domain resource in the first downlink transmission.

43. The method according to any one of claims 34, 36, 37, and 40, wherein: The network device not receiving the first uplink transmission on the seventh time domain resource includes: The network device does not receive the first uplink transmission; or, The network device does not receive the symbol located on the seventh time domain resource in the first uplink transmission; or, The network device does not receive the uplink channel or signal including the seventh time domain resource in the first uplink transmission.

44. The method of claim 31, wherein: The first downlink transmission and the first uplink transmission collide in a time domain, including: The time interval between the end position of the first time domain resource and the start position of the second time domain resource is less than a second duration; or, The time interval between the end position of the second time domain resource and the start position of the first time domain resource is smaller than the third duration.

45. The method of claim 44, wherein: The first downlink transmission is a downlink transmission scheduled by a first DCI, the first uplink transmission is an uplink transmission scheduled by a second DCI, and the network device communicates based on a target mode, including one of the following situations: The network device receives the first uplink transmission, and / or the network device does not send the first downlink transmission; The network device does not receive the first uplink transmission, and / or the network device sends the first downlink transmission; When the time interval between the end position of the fourth time domain resource and the start position of the second time domain resource is less than the first duration, the network device receives the first uplink transmission, and / or the network device does not send the first downlink transmission; When the time interval between the end position of the fourth time domain resource and the start position of the second time domain resource is greater than or equal to the first duration, the network device does not receive the first uplink transmission, and / or the network device sends the first downlink transmission; The network device receives the first uplink transmission and sends the first downlink transmission; The fourth time domain resource is the time domain resource for the terminal device to receive the first DCI.

46. ​​The method of claim 44, wherein: The first downlink transmission is a semi-statically configured downlink transmission, the first uplink transmission is a semi-statically configured uplink transmission, and the network device communicates based on a target mode, including one of the following situations: The network device receives the first uplink transmission, and / or the network device does not send the first downlink transmission; The network device does not receive the first uplink transmission, and / or the network device sends the first downlink transmission; The network device receives the first uplink transmission and sends the first downlink transmission.

47. The method of claim 44, wherein: The first downlink transmission is a downlink transmission scheduled by a first DCI, the first uplink transmission is an uplink transmission configured semi-statically, and the network device communicates based on a target mode, including one of the following situations: The network device does not receive the first uplink transmission, and / or the network device sends the first downlink transmission; When the time interval between the end position of the fourth time domain resource and the start position of the second time domain resource is less than the first duration, the network device receives the first uplink transmission, and / or the network device does not send the first downlink transmission; When the time interval between the end position of the fourth time domain resource and the start position of the second time domain resource is greater than or equal to the first duration, the network device does not receive the first uplink transmission, and / or the network device sends the first downlink transmission; The fourth time domain resource is the time domain resource for the terminal device to receive the first DCI.

48. The method of claim 44, wherein: The first downlink transmission is a semi-statically configured downlink transmission, the first uplink transmission is an uplink transmission scheduled by a second DCI, and the network device communicates based on a target mode, including: The network device receives the first uplink transmission, and / or the network device does not send the first downlink transmission.

49. The method of claim 44, wherein: The first downlink transmission is SSB, the first uplink transmission is uplink transmission scheduled by a second DCI or uplink transmission configured semi-statically, and the network device communicates based on a target mode, including: The network device does not receive the first uplink transmission, and / or the network device sends the first downlink transmission.

50. The method of claim 44, wherein: The first downlink transmission is a downlink transmission scheduled by a first DCI or a downlink transmission configured semi-statically, the first uplink transmission is an uplink transmission on an RO, and the network device communicates based on a target mode, including one of the following situations: The network device receives the first uplink transmission, and / or the network device does not send the first downlink transmission; The network device does not receive the first uplink transmission, and / or the network device sends the first downlink transmission; The network device receives the first uplink transmission and sends the first downlink transmission.

51. The method according to any one of claims 44 to 50, wherein: The network device not sending the first downlink transmission includes: The network device does not send the first downlink transmission on the first time domain resource; or, If the second time domain resource is located before the first time domain resource, the network device does not send the first downlink channel or signal in the first downlink transmission; or, If the first time domain resource is located before the second time domain resource, the network device does not send the first downlink transmission The last downstream channel or signal.

52. The method according to any one of claims 44 to 50, wherein: The network device not receiving the first uplink transmission includes: The network device does not receive the first uplink transmission on the second time domain resource; or, If the first time domain resource is located before the second time domain resource, the network device does not receive the first uplink channel or signal in the first uplink transmission; or, If the second time domain resource is located before the first time domain resource, the network device does not receive the last uplink channel or signal in the first uplink transmission.

53. The method according to any one of claims 34, 37, 45, 47, wherein: The first duration is determined based on the preparation time of the uplink transmission.

54. A method according to any one of claims 44 to 53, wherein: The second duration is the length of the transition time from the reception to the transmission of the terminal device; and / or, The third duration is the length of the transition time from sending to receiving of the terminal device.

55. The method according to any one of claims 33, 34, 35, 37, 40, 45, 47, 50, wherein: The downlink transmission scheduled by the first DCI includes at least one of the following situations: Physical downlink shared channel PDSCH scheduled in DCI format; Channel state indication reference signal CSI-RS scheduled in DCI format.

56. The method according to any one of claims 36, 38, 40, 46, 48, 50, wherein: The semi-statically configured downlink transmission includes at least one of the following situations: Physical downlink control channel PDCCH configured by high layers; PDSCH configured by higher layers; CSI-RS configured by high layers; Downlink Positioning Reference Channel DL PRS configured by a higher layer.

57. The method according to any one of claims 33, 34, 35, 38, 39, 45, 48, 49, wherein: The uplink transmission scheduled by the second DCI includes at least one of the following situations: Physical uplink shared channel PUSCH scheduled in DCI format; Physical uplink control channel PUCCH scheduled in DCI format; Physical random access channel PRACH scheduled in DCI format; Sounding Reference Signal SRS scheduled in DCI format.

58. The method according to any one of claims 36, 37, 39, 46, 47, 49, wherein: The semi-statically configured uplink transmission includes at least one of the following situations: SRS configured at a high level; PUCCH configured by higher layers; PUSCH configured by higher layers.

59. The method according to any one of claims 31 to 58, wherein: The target mode is determined based on at least one of the following information: Preset rules; Configuration information of the network device; The priority of the channel or signal included in the first downlink transmission; The priority of the channel or signal included in the first uplink transmission; The first downlink transmission includes a channel or a signal; The first uplink transmission includes a channel or a signal.

60. The method according to any one of claims 31 to 59, wherein: The TA of the terminal device is determined based on at least one of the following information: Synchronization assistance information sent by the network device; A TA command sent by the network device; The GNSS positioning information of the terminal device.

61. A terminal device, comprising: A first communication unit is configured to communicate based on a target mode if it is determined that a first downlink transmission and a first uplink transmission collide in the time domain according to a first time domain resource and a second time domain resource, wherein the first time domain resource is used for the first downlink transmission, the second time domain resource is used for the first uplink transmission, and the second time domain resource is based on the timing advance of the terminal device TA confirmed.

62. A network device comprising: The second communication unit is configured as follows: sending a first downlink transmission and receiving a first uplink transmission; or, If it is determined according to the first time domain resource and the second time domain resource that the first downlink transmission and the first uplink transmission collide in the time domain, communicating based on the target mode; The first time domain resource is a time domain resource for the terminal device to receive the first downlink transmission, the second time domain resource is a time domain resource for the terminal device to send the first uplink transmission, and the second time domain resource is determined based on the timing advance TA of the terminal device.

63. A terminal device, comprising: A processor and a memory, the memory being used to store a computer program, the processor being used to call and run the computer program stored in the memory to execute the method according to any one of claims 1 to 30.

64. A network device comprising: A processor and a memory, the memory being used to store a computer program, the processor being used to call and run the computer program stored in the memory to execute the method as claimed in any one of claims 31 to 60.

65. A chip, comprising: A processor, configured to call and run a computer program from a memory, so that a device equipped with the chip executes a method as claimed in any one of claims 1 to 30, or executes a method as claimed in any one of claims 31 to 60.

66. A computer-readable storage medium for storing a computer program, wherein the execution of the computer program enables a computer to execute the method according to any one of claims 1 to 30, or to execute the method according to any one of claims 31 to 60.

67. A computer program product, comprising computer program instructions, wherein the execution of the computer program instructions causes a computer to perform the method according to any one of claims 1 to 30, or the method according to any one of claims 31 to 60.

68. A computer program, wherein the execution of the computer program causes a computer to execute the method according to any one of claims 1 to 30, or the method according to any one of claims 31 to 60.

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