Wireless communication method and apparatus, device, and storage medium

Abstract

A wireless communication method and apparatus, a device, and a storage medium, relating to the technical field of communications. The method is executed by a terminal device. The method comprises: when a downlink transmission collides with an uplink transmission, determining, on the basis of a priority criterion, a priority between the downlink transmission and the uplink transmission (710); and if the priority of the downlink transmission is higher than that of the uplink transmission, monitoring or receiving the downlink transmission (720); or if the priority of the downlink transmission is lower than that of the uplink transmission, sending the uplink transmission (730). When a downlink transmission collides with an uplink transmission, the terminal device may determine, on the basis of the priorities of the uplink transmission and the downlink transmission, whether to monitor or receive the downlink transmission or send the uplink transmission. Instead of directly considering the situation to be an error, a solution for the collision between a downlink transmission and an uplink transmission is provided. One among the uplink transmission and the downlink transmission is selected for execution, and this part of time-frequency resources can also be utilized, thereby reducing the waste of time-frequency resources.

Description

Wireless communication methods, apparatus, devices and storage media Technical Field

[0001] This application relates to the field of communication technology, and in particular to a wireless communication method, apparatus, device, and storage medium. Background Technology

[0002] In NR-NTN (New Radio-Non-Terrestrial Network) systems, when terminal devices do not support simultaneous transmission and reception, such as when the terminal device is an HD-UE (Half-duplex User Equipment), the impact of scheduling timing on the terminal device's transmission needs to be considered. Furthermore, the possibility of uplink and downlink transmission collisions when the terminal device does not support simultaneous transmission and reception requires further discussion and research.

[0003] Summary of the Invention

[0004] This application provides a wireless communication method, apparatus, device, and storage medium. The technical solutions provided by this application are as follows:

[0005] According to one aspect of the embodiments of this application, a wireless communication method is provided, the method being executed by a terminal device, the method comprising:

[0006] In the event of a collision between downlink and uplink transmissions, the priority between the downlink and uplink transmissions is determined based on a priority criterion.

[0007] If the downlink transmission has a higher priority than the uplink transmission, listen for or receive the downlink transmission; or,

[0008] If the downlink transmission has a lower priority than the uplink transmission, then the uplink transmission is sent.

[0009] According to one aspect of the embodiments of this application, a wireless communication method is provided, the method being performed by a network device, the method comprising:

[0010] In the event of a collision between downlink and uplink transmissions, the downlink transmission is sent while the uplink transmission is monitored or received; or...

[0011] The priority between the downlink transmission and the uplink transmission is determined based on a priority criterion; if the priority of the downlink transmission is higher than that of the uplink transmission, the downlink transmission is sent; or, if the priority of the downlink transmission is lower than that of the uplink transmission, the uplink transmission is listened to or received.

[0012] According to one aspect of the embodiments of this application, a wireless communication device is provided, the device comprising:

[0013] The processing module is used to determine the priority between the downlink transmission and the uplink transmission based on a priority criterion when a collision occurs between the downlink transmission and the uplink transmission.

[0014] The transceiver module is configured to listen for or receive the downlink transmission if the downlink transmission has a higher priority than the uplink transmission; or,

[0015] The transceiver module is configured to send the uplink transmission if the downlink transmission has a lower priority than the uplink transmission.

[0016] According to one aspect of the embodiments of this application, a wireless communication device is provided, the device comprising:

[0017] The transceiver module is configured to, in the event of a collision between downlink and uplink transmissions, send the downlink transmission and listen for or receive the uplink transmission; or,

[0018] The processing module is configured to determine the priority between the downlink transmission and the uplink transmission based on a priority criterion; if the priority of the downlink transmission is higher than that of the uplink transmission, the downlink transmission is sent; or, if the priority of the downlink transmission is lower than that of the uplink transmission, the uplink transmission is monitored or received.

[0019] According to one aspect of the embodiments of this application, a communication device is provided, the communication device including a processor and a memory, the memory storing a computer program, the processor executing the computer program to implement the above-described wireless communication method. The communication device is a terminal device, or the communication device is a network device.

[0020] According to one aspect of the embodiments of this application, a computer-readable storage medium is provided, wherein the storage medium stores a computer program for execution by a processor to implement the above-described wireless communication method.

[0021] According to one aspect of the embodiments of this application, a chip is provided, the chip including programmable logic circuits and / or program instructions, which, when the chip is running, are used to implement the above-described wireless communication method.

[0022] According to one aspect of the embodiments of this application, a computer program product is provided, the computer program product including computer instructions stored in a computer-readable storage medium, and a processor reading from the computer-readable storage medium and executing the computer instructions to implement the above-described wireless communication method.

[0023] The technical solutions provided in this application embodiment may have the following beneficial effects:

[0024] In the event of a collision between downlink and uplink transmissions, the terminal device can determine whether to listen to or receive downlink transmissions or send uplink transmissions based on the priority of the uplink and downlink transmissions. Instead of directly treating this as an error, this solution provides a method for handling collisions between downlink and uplink transmissions, allowing the device to choose one over the other. This regulates the behavior of the terminal device, utilizes the available time-frequency resources, and reduces waste. Attached Figure Description

[0025] Figure 1 is a schematic diagram of the architecture of a communication system provided in an embodiment of this application;

[0026] Figure 2 is a schematic diagram of the architecture of another communication system provided in an embodiment of this application;

[0027] Figure 3 is a schematic diagram of the architecture of another communication system provided in an embodiment of this application;

[0028] Figure 4 is a schematic diagram of the architecture of another communication system provided in an embodiment of this application;

[0029] Figure 5 is a schematic diagram of the architecture of another communication system provided in an embodiment of this application;

[0030] Figure 6 is a schematic diagram of the architecture of another communication system provided in an embodiment of this application;

[0031] Figure 7 is a flowchart of a wireless communication method provided in an embodiment of this application;

[0032] Figure 8 is a schematic diagram of uplink and downlink transmission collision provided in an embodiment of this application;

[0033] Figure 9 is a flowchart of a wireless communication method provided in another embodiment of this application;

[0034] Figure 10 is a block diagram of a wireless communication device provided in an embodiment of this application;

[0035] Figure 11 is a block diagram of a wireless communication device provided in another embodiment of this application;

[0036] Figure 12 is a schematic diagram of the structure of a communication device provided in an embodiment of this application. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0038] The network architecture and business scenarios described in the embodiments of this application are for the purpose of more clearly illustrating the technical solutions of the embodiments of this application, and do not constitute a limitation on the technical solutions provided in the embodiments of this application. As those skilled in the art will know, with the evolution of network architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of this application are also applicable to similar technical problems.

[0039] The technical solutions of this application embodiment can be applied to various communication systems, such as: Global System for Mobile Communication (GSM) system, Code Division Multiple Access (CDMA) system, Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, Advanced Long Term Evolution (LTE-A) system, New Radio (NR) system, evolution of NR system, LTE-based access to unlicensed spectrum (LTE-U) system, NR-based access to unlicensed spectrum (NR-U) system, non-terrestrial communication network system, Universal Mobile Telecommunication System (UMTS), Wireless Local Area Networks (WLAN), and Wireless Fidelity (WLAN). Fidelity (WiFi), 5th-Generation (5G) communication systems, 6th-Generation (6G) communication systems, or other communication systems.

[0040] Traditional communication systems typically support a limited number of connections and are easy to implement. However, with the development of communication technology, mobile communication systems will not only support traditional communication but also, for example, device-to-device (D2D) communication, machine-to-machine (M2M) communication, machine-type communication (MTC), vehicle-to-vehicle (V2V) communication, or vehicle-to-everything (V2X) communication. The embodiments of this application can also be applied to these communication systems.

[0041] The communication system in this application embodiment can be applied to carrier aggregation (CA) scenarios, dual connectivity (DC) scenarios, and standalone (SA) network deployment scenarios.

[0042] The communication system in this application embodiment can be applied to unlicensed spectrum, wherein unlicensed spectrum can also be considered as shared spectrum; or, the communication system in this application embodiment can also be applied to licensed spectrum, wherein licensed spectrum can also be considered as non-shared spectrum.

[0043] Communication system scenarios include non-terrestrial network (NTN) systems and terrestrial network (TN) systems. NTN typically uses satellite communication to provide communication services to terrestrial users. Current NTN systems include NR-NTN and IoT-NTN (Internet of Things NTN) systems, and other NTN systems may be included in the future.

[0044] For example, Figure 1 is a schematic diagram of the architecture of a communication system provided in an embodiment of this application. As shown in Figure 1, the communication system 100 may include a network device 110, which may be a device that communicates with a terminal device 120. The network device 110 can provide communication coverage for a specific geographical area and can communicate with terminal devices located within that coverage area.

[0045] Figure 1 exemplarily illustrates a network device 110 and two terminal devices 120. In some embodiments of this application, the communication system 100 may include multiple network devices and each network device may include other numbers of terminal devices within its coverage area. This application does not limit this aspect.

[0046] For example, Figure 2 is a schematic diagram of another communication system architecture provided in an embodiment of this application. Referring to Figure 2, the communication system may include a terminal device 201 and a satellite 202, and wireless communication is possible between the terminal device 201 and the satellite 202. The network formed between the terminal device 201 and the satellite 202 may also be called an NTN. In the architecture of the communication system shown in Figure 2, the satellite 202 may have the function of a base station, and the terminal device 201 and the satellite 202 can communicate directly. In this system architecture, the satellite 202 can be referred to as a network device. In some embodiments of this application, the communication system may include multiple satellites 202, and the coverage area of ​​each network satellite 202 may include other numbers of terminal devices; this application does not limit this aspect.

[0047] For example, Figure 3 is a schematic diagram of another communication system architecture provided in an embodiment of this application. Referring to Figure 3, the communication system includes a terminal device 301, a satellite 302, and a base station 303. Wireless communication is possible between the terminal device 301 and the satellite 302, and communication is possible between the satellite 302 and the base station 303. The network formed between the terminal device 301, the satellite 302, and the base station 303 can also be called an NTN. In the architecture of the communication system shown in Figure 3, the satellite 302 may not have the function of a base station, and communication between the terminal device 301 and the base station 303 requires relaying through the satellite 302. In this system architecture, the base station 303 can be referred to as a network device. In some embodiments of this application, the communication system may include multiple base stations 303, each base station 303 can communicate with one or more satellites 302, and the coverage area of ​​each satellite 302 may include other numbers of terminal devices; this application does not limit this aspect.

[0048] In future communication systems such as B5G (Beyond 5G) or 6G, there may also be distributed multiple-input multiple-output (MIMO, also known as distributed antenna system) scenarios and / or massive multiple-input multiple-output (MIMO, also known as massive antenna matrix system) scenarios. In some cases, distributed MIMO and / or massive MIMO can also support cell-free or UE-centric network deployment scenarios. It should be understood that the above scenarios also apply to TN and / or NTN.

[0049] For example, Figure 4 is a schematic diagram of another communication system architecture provided in an embodiment of this application. This system architecture includes distributed antenna ports (or distributed antenna port clusters), and / or a central processing unit (CPU), and / or a switch module. As shown in Figure 4, the communication system may include multiple distributed antenna ports (or distributed antenna port clusters), and different distributed antenna ports (or distributed antenna port clusters) are connected to the CPU through a switch module. The terminal device selects a suitable distributed antenna port (or distributed antenna port cluster) to serve it based on its geographical location. Figure 4 exemplarily shows two CPUs, two switch modules, ten distributed antenna ports (represented as AP1 to AP10), and one terminal device. In some embodiments of this application, the communication system may include other numbers of CPUs, and / or other numbers of switch modules, and / or other numbers of distributed antenna ports (or distributed antenna port clusters), and / or other numbers of terminal devices. This application does not limit the specific number of terminal devices.

[0050] For example, Figure 5 is a schematic diagram of another communication system architecture provided in an embodiment of this application. Referring to Figure 5, it includes a terminal device 501 and a satellite cluster 502, which can communicate wirelessly. The network formed between the terminal device 501 and the satellite cluster 502 can also be called an NTN. In the architecture of the communication system shown in Figure 5, at least one satellite in the satellite cluster 502 (e.g., a satellite located at the center) can have the function of a base station, and the terminal device 501 and the satellite cluster 502 can communicate directly. In this system architecture, a satellite with base station function can be referred to as a network device. In some embodiments of this application, the communication system may include multiple satellite clusters, and / or each satellite cluster includes one or more network devices, and / or the coverage area of ​​each satellite cluster or each network device may include other numbers of terminal devices; this application does not limit this.

[0051] For example, Figure 6 is a schematic diagram of another communication system architecture provided in an embodiment of this application. Referring to Figure 6, the system includes a terminal device 601, a satellite cluster 602, and a base station 603. Wireless communication is possible between the terminal device 601 and the satellite cluster 602, and communication is possible between the satellite cluster 602 and the base station 603. The network formed between the terminal device 601, the satellite cluster 602, and the base station 603 can also be called an NTN. In the communication system architecture shown in Figure 6, the satellite cluster 602 may not have the function of a base station; communication between the terminal device 601 and the base station 603 requires relaying through the satellite cluster 602. In this system architecture, the base station can be referred to as a network device. In some embodiments of this application, the communication system may include multiple satellite clusters, and / or one network device may be associated with one or more satellite clusters, and / or may include multiple network devices, and / or the coverage area of ​​each network device may include other numbers of terminal devices. This application does not limit this aspect.

[0052] The terminal device mentioned in the embodiments of this application may refer to UE (User Equipment), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, wireless communication device, user agent, or user device. Optionally, the terminal device 120 may also be a cellular phone, cordless phone, SIP (Session Initiation Protocol) phone, WLL (Wireless Local Loop) station, PDA (Personal Digital Assistant), handheld device with wireless communication function, computing device or other processing device connected to a wireless modem, vehicle-mounted device, wearable device, terminal device in 5GS (5th Generation System), or terminal device in the future evolved PLMN (Public Land Mobile Network), etc., and the embodiments of this application are not limited thereto. For ease of description, the devices mentioned above are collectively referred to as terminal devices. In the embodiments of this application, "terminal device" and "UE" are usually used interchangeably, but those skilled in the art will understand that they can express the same meaning.

[0053] The network devices mentioned in this application embodiment can be access network devices, located on the ground or on a satellite. An access network device is a device deployed in an access network to provide wireless communication functions for terminal devices. Access network devices can include various forms of macro base stations, micro base stations, relay stations, access points, etc. In systems employing different wireless access technologies, the names of devices with access network device functions may differ; for example, in a 5G NR system, they are called gNodeB or gNB. As communication technologies evolve, the name "access network device" may change. For ease of description, in this application embodiment, the aforementioned devices providing wireless communication functions for terminal devices are collectively referred to as access network devices. Optionally, a communication relationship can be established between the terminal device and the core network device through the access network device.

[0054] The "5G NR system" in this application embodiment can also be referred to as a 5G system or an NR system, but those skilled in the art will understand its meaning. The technical solutions described in this application embodiment can be applied to LTE systems, 5G NR systems, and subsequent evolution systems of 5G NR systems (such as 6G systems), as well as other communication systems such as NB-IoT (Narrow Band Internet of Things) systems. This application does not limit these applications.

[0055] In this embodiment, the network device can provide services to a cell. The terminal device communicates with the network device through the transmission resources (e.g., frequency domain resources, or spectrum resources) on the carrier used by the cell. The cell can be the cell corresponding to the network device (e.g., a base station). The cell can belong to a macro base station or to a base station corresponding to a small cell. The small cell can include: metro cell, micro cell, pico cell, femto cell, etc. These small cells have the characteristics of small coverage area and low transmission power, and are suitable for providing high-speed data transmission services.

[0056] Before introducing the technical solution of this application, some related technical knowledge involved in this application will be introduced and explained. The following related technologies are optional solutions and can be arbitrarily combined with the technical solutions of the embodiments of this application, all of which fall within the protection scope of the embodiments of this application. The embodiments of this application include at least some of the following contents.

[0057] 1. Scheduling limitations of compact terminal equipment

[0058] In NR systems, in addition to supporting terminal devices with extremely high peak data rates and high processing capabilities, compact terminals with reduced capabilities are also supported. Compact terminals, also known as RedCap (Reduced Capability) terminals in standardization, are typically used in applications with relatively low processing capacity and speed requirements, such as the Internet of Things (IoT), industrial automation, and wearable devices. Compact terminals have smaller communication hardware and lower power consumption, and do not support complex functional groups such as high reliability and low latency, carrier aggregation, etc. Lightweight capability is a characteristic of this type of terminal.

[0059] To reduce complexity, the NR system supports half-duplex (HD) compact terminals, also known as half-duplex UEs (HD-UEs). When the serving cell is operating in Frequency Division Duplex (FDD) mode, an HD-UE cannot simultaneously transmit and receive on that serving cell. Due to this inability to transmit and receive simultaneously, HD-UEs face certain limitations when communicating in serving cells operating in FDD mode.

[0060] Specifically, in a TN network, the terminal device does not expect the following two collision scenarios between uplink and downlink transmissions of an HD-UE; or, if such a collision occurs, the terminal device considers it a scheduling error:

[0061] Case 1: Collision between downlink transmission in semi-static configuration and uplink transmission in semi-static configuration;

[0062] Case 2: Collision between dynamically scheduled downlink transmissions and dynamically scheduled uplink transmissions.

[0063] 2. Scheduling timing enhancement in NR-NTN networks

[0064] In NR systems, in addition to supporting terminal devices with extremely high peak data rates and high processing capabilities, compact terminals with reduced capabilities are also supported. Compact terminals, also known as RedCap (Reduced Capability) terminals in standardization, are typically used in applications with relatively low processing capacity and speed requirements, such as the Internet of Things (IoT), industrial automation, and wearable devices. Compact terminals have smaller communication hardware and lower power consumption, and do not support complex functional groups such as high reliability and low latency, carrier aggregation, etc. Lightweight capability is a characteristic of this type of terminal.

[0065] In NR-NTN systems, to overcome the large transmission delay in NTN systems, the uplink transmission timing relationship in NR systems is enhanced. In an NR system, when a terminal device receives a downlink transmission in time slot n, this downlink transmission can be scheduled for an uplink transmission in time slot n+k. In NR-NTN systems, when a terminal device receives a downlink transmission in time slot n, this downlink transmission can be scheduled for time slot n+k+K. offset Uplink transmission.

[0066] Among them, K offset This is an offset parameter introduced to overcome the large transmission delay in NTN systems. Its value should typically be greater than or equal to the TA value of the terminal device. Specifically, K... offset =K cell,offset –K UE,offset , where K cell,offset It refers to common high-level parameters such as offset parameters in system message configuration, K. UE,offset These are specialized high-level parameters, such as differential K. offset The offset parameter configured in the MAC CE command (Differential Koffset MAC CE command). If no corresponding configuration is provided, then the corresponding K... cell,offset or K UE,offset The value is 0.

[0067] In an NR-NTN system, network devices will also configure K for terminal devices. mac Parameter, K mac These are common higher-layer parameters, such as system message configuration offset parameters, used to represent the round-trip transmission delay between the reference point and network devices. At the reference point, downlink and uplink transmission slots in the network are aligned.

[0068] In NR-NTN systems, when terminal devices do not support simultaneous transmission and reception, such as when the terminal device is an HD-UE, the impact of scheduling timing on the terminal device's transmission needs to be considered. In other words, when a terminal device does not support simultaneous transmission and reception, in cases of uplink and downlink transmission collisions—for example, when uplink and downlink transmission resources overlap in the time domain, or the interval between uplink and downlink transmission resources is less than the terminal device's handover time—the terminal device cannot simultaneously send uplink transmissions and receive downlink transmissions.

[0069] To avoid this problem, an intuitive approach is for network devices to schedule uplink and downlink transmissions from terminal devices to avoid collisions. For example, in existing TN networks, terminal devices do not want collisions between dynamically scheduled downlink and uplink transmissions, nor do they want collisions between semi-statically configured downlink and uplink transmissions. If such collisions occur, the terminal device will treat them as incorrect scheduling situations, for example, the terminal device will neither perform downlink nor uplink transmissions. However, in NR-NTN networks, satellite movement causes the Timing Advance (TA) value of terminal devices to vary significantly over time. Due to the large signal transmission delay, the impact of the terminal device's TA on scheduling timing is not negligible. Since network devices cannot accurately obtain the real-time TA value of terminal devices during scheduling, it becomes more difficult for network devices to avoid uplink and downlink transmission collisions through scheduling.

[0070] One alternative implementation is to define a priority between uplink and downlink transmissions, and the terminal device transmits according to the priority when a collision occurs. However, how to define the priority between semi-static downlink and semi-static uplink transmissions is currently unclear.

[0071] Please refer to Figure 7, which shows a flowchart of a wireless communication method provided in an embodiment of this application, the method being performed by a terminal device. The method includes at least one of the following steps 710 to 730.

[0072] Step 710: In the event of a collision between downlink and uplink transmissions, the terminal device determines the priority between downlink and uplink transmissions based on priority criteria.

[0073] Regarding terminal equipment

[0074] In some embodiments, the terminal device operates in a TN network. In some embodiments, the terminal device operates in an NTN network. In some embodiments, the terminal device is a terminal device that supports extremely high peak rates and has high processing capabilities. In some embodiments, the terminal device is a compact terminal device with reduced capabilities. Exemplarily, the terminal device is a terminal device with high processing capabilities operating in a TN network. Exemplarily, the terminal device is a compact terminal device operating in a TN network. Exemplarily, the terminal device is a terminal device with high processing capabilities operating in an NTN network. Exemplarily, the terminal device is a compact terminal device operating in an NTN network.

[0075] In some embodiments, the terminal device supports half-duplex mode. For example, the terminal device can operate in frequency division duplex mode or time division duplex mode.

[0076] Priority criteria

[0077] In some embodiments, the priority criteria are predefined or preconfigured, or indicated by the network device. In some embodiments, the priority criteria are used to determine the priority of uplink and downlink transmissions. In some embodiments, the priority criteria include at least one criterion, which may be entirely predefined or preconfigured, entirely indicated by the network device, or partially predefined or preconfigured and partially indicated by the network device; this application does not limit this.

[0078] In some embodiments, the priority criteria include at least a predefined first criterion. In some embodiments, the first criterion includes that downlink transmission has a higher priority than uplink transmission; or, downlink transmission has a lower priority than uplink transmission. For example, if the first criterion includes that downlink transmission has a higher priority than uplink transmission, then the terminal device performs step 720; if the first criterion includes that downlink transmission has a lower priority than uplink transmission, then the terminal device performs step 730.

[0079] In some embodiments, the priority criteria include at least a second criterion configured by the network device. In some embodiments, the second criterion includes a higher priority for downlink transmission than for uplink transmission; or, a lower priority for downlink transmission than for uplink transmission. For example, if the second criterion includes a higher priority for downlink transmission than for uplink transmission, the terminal device performs step 720; if the second criterion includes a lower priority for downlink transmission than for uplink transmission, the terminal device performs step 730. In some embodiments, the second criterion configured by the network device can be semi-static or dynamically configured, and this application does not limit this.

[0080] In some embodiments, the priority criteria include a predefined first criterion and a second criterion configured by the network device. The second criterion may include: downlink transmission having a higher priority than uplink transmission; or downlink transmission having a lower priority than uplink transmission; or, whether or not the first criterion is changed. For example, if the second criterion includes changing the first criterion, then if the first criterion includes downlink transmission having a higher priority than uplink transmission, and the second criterion changes it to downlink transmission having a lower priority than uplink transmission, the terminal device performs step 730. If the first criterion includes downlink transmission having a lower priority than uplink transmission, and the second criterion changes it to downlink transmission having a higher priority than uplink transmission, the terminal device performs step 720. For example, if the second criterion does not change the first criterion, then if the first criterion includes downlink transmission having a higher priority than uplink transmission, the terminal device performs step 720. If the first criterion includes downlink transmission having a lower priority than uplink transmission, the terminal device performs step 730.

[0081] Regarding uplink and downlink transmission

[0082] In some embodiments, uplink and / or downlink transmissions are semi-statically configured. For example, in this application embodiment, the uplink transmission is a semi-statically configured uplink transmission, and the downlink transmission is a semi-statically configured downlink transmission. That is, in the event of a collision between a semi-statically configured uplink transmission and a semi-statically configured downlink transmission, the priority of the uplink and downlink transmissions can be determined according to the priority criteria in this application embodiment.

[0083] In some embodiments, the downlink transmission is a semi-statically configured downlink transmission, including at least one of the following: PDCCH (Physical Downlink Control Channel) candidates, SPS (Semi-Persistent Scheduling) PDSCH (Physical Downlink Shared Channel), CSI-RS (Channel State Information-Reference Signals), and DL PRS (Downlink Positioning Reference Signals); wherein, the PDCCH candidates include at least one of the following: PDCCH candidates in Type-0 PDCCH CSS (Common Search Space), PDCCH candidates in Type-0A PDCCH CSS, PDCCH candidates in Type-0B PDCCH CSS, PDCCH candidates in Type-1 PDCCH CSS, PDCCH candidates in Type-2 PDCCH CSS, PDCCH candidates in Type-2A PDCCH CSS, PDCCH candidates in Type-3 PDCCH CSS, and USS (UE-Specific Search). PDCCH candidates in the UE-specific search space.

[0084] In some embodiments, if the downlink transmission is a PDCCH candidate, the terminal device needs to listen to the downlink transmission (PDCCH candidate) based on the configuration information of the search space set; if the downlink transmission is one or more of SPS PDSCH, CSI-RS, and PRS, the terminal device needs to receive the downlink transmission based on the configuration information of the downlink transmission (SPS PDSCH, CSI-RS, PRS).

[0085] In some embodiments, the uplink transmission is a semi-statically configured uplink transmission, which includes at least one of the following: SRS (Sounding Reference Signal), PUCCH (Physical Uplink Control Channel), and PUSCH (Physical Uplink Shared Channel); wherein, PUCCH includes at least one of the following: PUCCH carrying SR (Scheduling Request), PUCCH carrying HARQ-ACK (Hybrid Automatic Repeat reQuest-Acknowledgment), and PUCCH carrying CSI; and PUSCH includes at least one of the following: CG-PUSCH (Configured Grant PUSCH), PUSCH carrying SP-CSI (Semi-Persistent Channel State Information), and PUSCH carrying HARQ-ACK.

[0086] In some embodiments, uplink and / or downlink transmissions are dynamically scheduled. For example, in this application embodiment, the uplink transmission is dynamically scheduled, and the downlink transmission is dynamically scheduled. That is, in the event of a collision between dynamically scheduled uplink and dynamically scheduled downlink transmissions, the priority of the uplink and downlink transmissions can be determined according to the priority criteria in this application embodiment.

[0087] Collision between downlink and uplink transmissions

[0088] In some embodiments, a collision between downlink and uplink transmissions includes at least one of the following:

[0089] Case 1: After considering the TA of the terminal device, the time domain resources corresponding to downlink transmission and the time domain resources corresponding to uplink transmission overlap in the time domain.

[0090] TA (Temperature Controller) is used for uplink transmission timing on the air interface of terminal devices to ensure that uplink transmissions from all terminal devices are synchronized when received by network devices. TA helps ensure uplink transmission synchronization, avoid intra-cell interference, and maintain service quality (QoS).

[0091] In some embodiments, the time-domain resources corresponding to downlink transmission and the time-domain resources corresponding to uplink transmission overlap in the time domain, which may include complete overlap in the time domain; and / or partial overlap in the time domain. For example, as shown in FIG8(a), the time-domain resources corresponding to downlink transmission and the time-domain resources corresponding to uplink transmission completely overlap in the time domain; as shown in FIG8(b), the time-domain resources corresponding to downlink transmission and the time-domain resources corresponding to uplink transmission partially overlap in the time domain.

[0092] Case 2: After considering the TA of the terminal device, the time interval between the end position of the time domain resource corresponding to the downlink transmission and the start position of the time domain resource corresponding to the uplink transmission is less than the first duration.

[0093] In some embodiments, the terminal device also requires time to switch from downlink reception to uplink transmission. Therefore, if the time interval between the end of the time domain resource corresponding to the downlink transmission and the start of the resource corresponding to the uplink transmission is too small, the terminal device may not have completed the switch, leading to uplink transmission failure. Therefore, considering the terminal device's time transfer (TA), a collision also occurs if the time interval between the end of the time domain resource corresponding to the downlink transmission and the start of the time domain resource corresponding to the uplink transmission is less than a first duration. In some embodiments, the first duration is the time it takes for the terminal device to switch from downlink reception to uplink transmission. In some embodiments, the first duration is less than the time it takes for the terminal device to switch from downlink reception to uplink transmission.

[0094] Case 3: After considering the TA of the terminal device, the time interval between the end position of the time domain resource corresponding to the uplink transmission and the start position of the time domain resource corresponding to the downlink transmission is less than the second duration.

[0095] In some embodiments, the terminal device also requires time to switch from uplink transmission to downlink reception. Therefore, if the time interval between the end position of the time domain resource corresponding to the uplink transmission and the start position of the time domain resource corresponding to the downlink transmission is too small, the terminal device may not have completed the switch, leading to downlink reception failure. Therefore, considering the TA of the terminal device, a collision also occurs if the time interval between the end position of the time domain resource corresponding to the uplink transmission and the start position of the time domain resource corresponding to the downlink transmission is less than the second duration. In some embodiments, the second duration is the duration for the terminal device to switch from uplink transmission to downlink reception. In some embodiments, the second duration is less than the duration for the terminal device to switch from uplink transmission to downlink reception.

[0096] In some embodiments, the first duration and / or the second duration are configured by the network device. Exemplarily, the first duration and / or the second duration are configured by the network device based on the capabilities of the terminal device. In some embodiments, the first duration and / or the second duration are determined by the terminal device based on its own capabilities. In some embodiments, if the first duration and / or the second duration are determined by the terminal device, the terminal device reports the first duration and / or the second duration to the network device. In some embodiments, the first duration and / or the second duration may also be predefined or preconfigured. Exemplarily, the first duration and / or the second duration are predefined by the protocol. In some embodiments, the first duration and the second duration have the same length.

[0097] Step 720: If the downlink transmission has a higher priority than the uplink transmission, the terminal device listens for or receives the downlink transmission.

[0098] Step 730: If the downlink transmission has a lower priority than the uplink transmission, the terminal device sends an uplink transmission.

[0099] In some embodiments, when downlink and uplink transmissions collide, the terminal device determines the priority of the uplink and downlink transmissions based on a priority criterion, and selects one of the uplink and downlink transmissions to execute based on that priority.

[0100] In some embodiments, if a terminal device is listening to or receiving downlink transmissions, it may send a request message to the network device to request time-frequency resources for uplink transmissions. In some embodiments, if a terminal device is sending uplink transmissions, it may send feedback information to the network device to indicate that it is not listening to or receiving downlink transmissions. The network device may determine whether to retransmit the downlink transmissions based on the feedback information.

[0101] The technical solution provided in this application, when downlink and uplink transmissions collide, allows the terminal device to determine whether to listen to or receive downlink transmissions or send uplink transmissions based on the priority of downlink and uplink transmissions. Instead of directly treating this situation as an error, it offers a solution for downlink and uplink transmission collisions, allowing the terminal device to choose one over the other for execution. This standardizes the behavior of the terminal device and utilizes the available time-frequency resources, reducing their waste.

[0102] Please refer to Figure 9, which shows a flowchart of a wireless communication method provided in an embodiment of this application, the method being performed by a network device. The method includes the following steps 910 or 920.

[0103] In some embodiments, the network device operates in a TN network. In some embodiments, the network device operates in an NTN network. In some embodiments, the network device supports half-duplex mode. Exemplarily, a network device operating in half-duplex mode does not have the ability to simultaneously transmit downlink and receive uplink transmissions. Exemplarily, the network device can operate in frequency division duplex mode or time division duplex mode. In some embodiments, the network device supports full-duplex mode. Exemplarily, a network device operating in full-duplex mode has the ability to simultaneously transmit downlink and receive uplink transmissions.

[0104] Step 910: In the event of a collision between downlink and uplink transmissions, the network device sends a downlink transmission and listens for or receives an uplink transmission.

[0105] In some embodiments, the network device has the ability to simultaneously send downlink transmissions and receive uplink transmissions. In this case, whether the uplink transmissions and downlink transmissions collide has no impact on the network device. Therefore, the network device can both send downlink transmissions and listen for or receive uplink transmissions.

[0106] In some embodiments, the network device cannot determine whether a collision has occurred between downlink and uplink transmissions at the terminal device, and the network device has the ability to send downlink transmissions and receive uplink transmissions simultaneously. In this case, whether a collision occurs between uplink and downlink transmissions has no impact on the network device. Therefore, the network device can both send downlink transmissions and listen to or receive uplink transmissions.

[0107] Step 920: The network device determines the priority between downlink and uplink transmissions based on priority criteria; if the downlink transmission has a higher priority than the uplink transmission, it sends the downlink transmission; or if the downlink transmission has a lower priority than the uplink transmission, it listens for or receives the uplink transmission.

[0108] In some embodiments, the network device does not have the ability to simultaneously send downlink transmissions and receive uplink transmissions. In this case, the network device needs to determine the priority of uplink and downlink transmissions, and determine whether to send downlink transmissions or listen for or receive uplink transmissions based on the priority of uplink and downlink transmissions.

[0109] In some embodiments, the network device can determine that a collision has occurred between downlink and uplink transmissions at the terminal device. In this case, the network device can determine the priority of the uplink and downlink transmissions, and determine whether to send downlink transmissions or listen for or receive uplink transmissions based on the priority of the uplink and downlink transmissions.

[0110] Regarding priority criteria, uplink and downlink transmission, and collisions between uplink and downlink transmissions, please refer to the descriptions in the above embodiments; these will not be repeated here.

[0111] In some embodiments, the network device may send first configuration information to the terminal device, the first configuration information being used to indicate a second criterion (i.e., the second criterion configured by the network device). In some embodiments, the network device may send second configuration information to the terminal device, the second configuration information being used to configure resources corresponding to downlink transmissions in a semi-static configuration. In some embodiments, the network device may send third configuration information to the terminal device, the third configuration information being used to configure resources corresponding to uplink transmissions in a semi-static configuration. In some embodiments, the configuration information may be carried in at least one of the following: System Message Block (SIB), Downlink Control Information (DCI), Radio Resource Control (RRC) signaling, and Media Access Control Element (MACCE) signaling.

[0112] The technical solution provided in this application, when downlink and uplink transmissions collide, allows network devices to determine whether to listen to or receive uplink transmissions or send downlink transmissions based on the priority of uplink and downlink transmissions. Instead of directly treating this situation as an error, it offers a solution for downlink and uplink transmission collisions, allowing for selective execution of either uplink or downlink transmissions, thus utilizing the available time-frequency resources and reducing their waste.

[0113] Regarding the priority criteria, this application presents several possible implementation schemes. The following section will first explain these possible priority criteria.

[0114] 1. First principle

[0115] In some embodiments, the priority criteria include a predefined first criterion.

[0116] In some embodiments, the first criterion includes:

[0117] Downlink transmissions have higher priority than uplink transmissions; or,

[0118] Downlink transmissions have a lower priority than uplink transmissions.

[0119] For example, the first criterion includes: the protocol predefined priority as:

[0120] In a semi-static configuration, downlink transmission has a higher priority than uplink transmission; or,

[0121] In a semi-static configuration, downlink transmission has a lower priority than uplink transmission.

[0122] In some embodiments, the first criterion applies to situations where all uplink and all downlink transmissions between the terminal device and the network device collide. For example, in the event of a collision between all semi-static configuration downlink transmissions and all semi-static configuration uplink transmissions, the first criterion can be used to determine transmission priority.

[0123] In some embodiments, the first criterion applies to situations where a collision occurs between a portion of the uplink transmission and all of the downlink transmission between the terminal device and the network device. For example, in the case of a collision between all semi-static configuration downlink transmissions and a portion of semi-static configuration uplink transmissions, the first criterion can be used to determine the transmission priority.

[0124] In some embodiments, the first criterion applies to situations where all uplink transmissions and some downlink transmissions collide between the terminal device and the network device. For example, in the case of a collision between a partially semi-static configuration downlink transmission and a fully semi-static configuration uplink transmission, the first criterion can be used to determine the transmission priority.

[0125] In some embodiments, the first criterion applies to situations where a collision occurs between a portion of uplink transmissions and a portion of downlink transmissions between a terminal device and a network device. For example, in the case of a collision between a partially semi-static configuration downlink transmission and a partially semi-static configuration uplink transmission, the first criterion can be used to determine transmission priority.

[0126] 2. Second Criterion

[0127] In some embodiments, the priority criteria include a second criterion for network device configuration.

[0128] In some embodiments, the second criterion includes:

[0129] Downlink transmissions have higher priority than uplink transmissions; or,

[0130] Downlink transmissions have lower priority than uplink transmissions; or,

[0131] Should the first principle be changed?

[0132] For example, the second criterion is the priority of network device configuration. The second criterion includes:

[0133] In a semi-static configuration, downlink transmission has a higher priority than uplink transmission; or,

[0134] In a semi-static configuration, downlink transmission has a lower priority than uplink transmission; or,

[0135] Whether to change the predefined priority of the protocol.

[0136] In some embodiments, if the network device is configured with a second criterion, the priority criterion includes the second criterion. And / or, if the network device is not configured with a second criterion, the priority criterion does not include the second criterion.

[0137] In some embodiments, when the priority criterion includes a second criterion based on network device configuration, the terminal device determines the priority between downlink and uplink transmissions based on the second criterion; otherwise, the terminal device determines the priority between downlink and uplink transmissions based on a predefined first criterion. In some embodiments, the priority criterion includes only the second criterion, or the priority criterion includes both the first and second criterions, in which case the terminal device determines the priority between downlink and uplink transmissions based on the second criterion. In some embodiments, the priority criterion includes only the first criterion, in which case the terminal device determines the priority between downlink and uplink transmissions based on the first criterion.

[0138] For example, if the network device is configured with a second criterion, then the terminal device determines the priority between downlink and uplink transmissions based on the second criterion; otherwise, the terminal device determines the priority between downlink and uplink transmissions based on a first criterion.

[0139] 3. Third Criterion

[0140] In some embodiments, the priority criteria further include a third criterion. In some embodiments, in addition to the first and / or second criteria, the priority criteria further include a third criterion. That is, the priority criteria may include a third criterion, and at least one of the first and second criteria.

[0141] In some embodiments, where the priority criteria include a third criterion, and the priority criteria include a first criterion and / or a second criterion, the terminal device first determines the priority between downlink and uplink transmissions based on the third criterion. In some embodiments, where the priority criteria include both a third and a first criterion, the terminal device first determines the priority between downlink and uplink transmissions based on the third criterion; if the third criterion cannot determine the priority between downlink and uplink transmissions, then the priority between downlink and uplink transmissions is determined based on the first criterion. In some embodiments, where the priority criteria include both a third and a second criterion, the terminal device first determines the priority between downlink and uplink transmissions based on the third criterion; if the third criterion cannot determine the priority between downlink and uplink transmissions, then the priority between downlink and uplink transmissions is determined based on the second criterion. In some embodiments, where the priority criteria include a third, a second, and a first criterion, the terminal device first determines the priority between downlink and uplink transmissions based on the third criterion; if the third criterion cannot determine the priority between downlink and uplink transmissions, then the priority between downlink and uplink transmissions is determined based on the second criterion; if the second criterion also cannot determine the priority between downlink and uplink transmissions, then the priority between downlink and uplink transmissions is determined based on the first criterion.

[0142] In some embodiments, the third criterion may be predefined or preconfigured, or it may be configured by the network device.

[0143] In some embodiments, based on the characteristics of uplink and downlink transmission, downlink transmission is divided into Type I downlink transmission and Type II downlink transmission, and uplink transmission is divided into Type I uplink transmission and Type II uplink transmission. Before introducing the third criterion, we will first introduce Type I downlink transmission, Type II downlink transmission, Type I uplink transmission, and Type II uplink transmission.

[0144] 1) Type I downlink transmission

[0145] In some embodiments, when the semi-statically configured downlink transmission is SPS PDSCH, CSI-RS, or DL ​​PRS, the terminal device can receive SPS PDSCH, CSI-RS, or DL ​​PRS through the downlink resources semi-statically configured by the network device. Therefore, SPS PDSCH, CSI-RS, or DL ​​PRS belongs to a defined semi-statically configured downlink transmission. In this case, the terminal device can determine the received downlink transmission based on the semi-statically configured resources, referred to as the first type of downlink transmission in this application embodiment. In some embodiments, the first type of downlink transmission includes at least one of the following: SPS PDSCH, CSI-RS, and DL PRS.

[0146] 2) Category 2 downlink transmission

[0147] In some embodiments, when the downlink transmission in a semi-static configuration is a PDCCH candidate, the terminal device may or may not detect the PDCCH through blind detection for the PDCCH candidates included in the search space set. Therefore, the PDCCH belongs to the category of uncertain semi-static configuration downlink transmission. In this case, the terminal device cannot determine whether it can receive the downlink transmission and needs to listen for it based on the candidate resources in the semi-static configuration. This type of downlink transmission is referred to as the second type of downlink transmission in this application embodiment. In some embodiments, the second type of downlink transmission includes at least one of the following: PDCCH candidates in Type-0 / 0A / 0B / 1 / 2 / 2APDCCHCSS, PDCCH candidates in Type-3 PDCCHCSS, and PDCCH candidates in USS.

[0148] In some embodiments, the PDCCH candidates in the Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH CSS include at least one of the following:

[0149] PDCCH candidates in Type-0 PDCCH CSS, PDCCH candidates in Type-0A PDCCH CSS, PDCCH candidates in Type-0B PDCCH CSS, PDCCH candidates in Type-1 PDCCH CSS, PDCCH candidates in Type-2 PDCCH CSS, and PDCCH candidates in Type-2A PDCCH CSS.

[0150] 3) Category 1 uplink transmission

[0151] In some embodiments, when the semi-statically configured uplink transmission is a PUCCH carrying HARQ-ACK, a PUSCH carrying HARQ-ACK, a PUCCH carrying CSI, a PUSCH carrying SP-CSI, or an SRS, the network device can receive the PUCCH carrying HARQ-ACK, PUSCH carrying HARQ-ACK, PUCCH carrying CSI, PUSCH carrying SP-CSI, or SRS through the semi-statically configured uplink resources. Therefore, the PUCCH carrying HARQ-ACK, PUSCH carrying HARQ-ACK, PUCCH carrying CSI, PUSCH carrying SP-CSI, or SRS belongs to a defined semi-statically configured uplink transmission. In this case, the network device can determine the received uplink transmission based on the semi-statically configured resources, referred to as a first type of uplink transmission in this embodiment.

[0152] In some embodiments, the first type of uplink transmission includes at least one of the following: an uplink channel carrying HARQ-ACK, a PUCCH carrying CSI, a PUSCH carrying SP-CSI, and SRS. The uplink channel carrying HARQ-ACK includes either a PUSCH carrying HARQ-ACK or a PUCCH carrying HARQ-ACK.

[0153] 4) Category 2 uplink transmission

[0154] In some embodiments, when the semi-static uplink transmission is a PUCCH or CG-PUSCH for SR, the terminal device determines whether to transmit the SR or CG-PUSCH, and the network device detects whether the terminal device has sent a PUCCH or CG-PUSCH carrying the SR through blind detection. Therefore, the PUCCH or CG-PUSCH for SR belongs to the category of uncertain semi-static uplink transmission. In this case, the network device cannot determine whether it can receive the uplink transmission and needs to monitor the candidate resources based on the semi-static configuration. This type of uplink transmission is referred to as the second type of uplink transmission in this embodiment. In some embodiments, the second type of uplink transmission includes at least one of the following: an uplink channel carrying the SR, or a CG-PUSCH. The uplink channel carrying the SR includes a PUSCH carrying the SR or a PUCCH carrying the SR.

[0155] The following section introduces several possible ways to set the third criterion.

[0156] Method 1:

[0157] In some embodiments, the third criterion includes at least one of the following:

[0158] In the event of a collision between a Type I downlink transmission and a Type II uplink transmission, the Type I downlink transmission has higher priority than the Type II uplink transmission.

[0159] In the event of a collision between a Type II downlink transmission and a Type I uplink transmission, the Type II downlink transmission has a lower priority than the Type I uplink transmission.

[0160] For example, in the event of a collision between a determined semi-static configuration downlink transmission and an uncertain semi-static configuration uplink transmission, the determined semi-static configuration downlink transmission has a higher priority than the uncertain semi-static configuration uplink transmission. For instance, in the event of a collision between CSI-RS and CG-PUSCH, CSI-RS has a higher priority than CG-PUSCH.

[0161] For example, in the event of a collision between an indeterminate semi-static configuration downlink transmission and a deterministic semi-static configuration uplink transmission, the indeterminate semi-static configuration downlink transmission has a lower priority than the deterministic semi-static configuration uplink transmission. For instance, in the case of a collision between a PDCCH candidate in a Type-3 PDCCH CSS and a PUCCH carrying HARQ-ACK, the PDCCH candidate in the Type-3 PDCCH CSS has a lower priority than the PUCCH carrying HARQ-ACK.

[0162] Method 2:

[0163] In some embodiments, the third criterion includes at least one of the following:

[0164] In the event of a collision between a Type I downlink transmission and a Type II uplink transmission, the Type I downlink transmission has a lower priority than the Type II uplink transmission.

[0165] In the event of a collision between a Type II downlink transmission and a Type I uplink transmission, the Type II downlink transmission takes precedence over the Type I uplink transmission.

[0166] For example, if the first type of downlink transmission or the first type of uplink transmission is related to the channel quality of the downlink or uplink, such as the first type of downlink transmission being CSI-RS, or the first type of uplink transmission being an uplink channel carrying CSI or SP-CSI or SRS; while the second type of downlink transmission or the second type of uplink transmission is related to data transmission, and failure to perform the second type of downlink transmission or the second type of uplink transmission in a timely manner will result in a larger transmission delay of the service, such as the second type of downlink transmission being a PDCCH candidate in the USS, or the second type of uplink transmission being a PUCCH or CG-PUSCH used for SR, then the second type of downlink transmission or the second type of uplink transmission has a higher priority.

[0167] For example, in the event of a collision between a determined semi-static configuration downlink transmission and an uncertain semi-static configuration uplink transmission, the determined semi-static configuration downlink transmission has a lower priority than the uncertain semi-static configuration uplink transmission. For instance, in the event of a collision between CSI-RS and CG-PUSCH, CSI-RS has a lower priority than CG-PUSCH.

[0168] For example, in the event of a collision between an indeterminate semi-static configuration downlink transmission and a deterministic semi-static configuration uplink transmission, the indeterminate semi-static configuration downlink transmission has a higher priority than the deterministic semi-static configuration uplink transmission. For instance, in the event of a collision between a PDCCH candidate in the USS and a PUSCH carrying SP-CSI, the PDCCH candidate in the USS has a higher priority than the PUSCH carrying SP-CSI.

[0169] Method 3:

[0170] In some embodiments, the third criterion includes:

[0171] In the event of a collision between a Type I downlink transmission and a Type I uplink transmission, the priority between the Type I downlink transmission and the Type I uplink transmission shall be determined based on either the first criterion or the second criterion.

[0172] For example, in the event of a collision between a determined semi-static configuration downlink transmission and a determined semi-static configuration uplink transmission, a priority is determined according to a first criterion or a second criterion. For instance, in the event of a collision between CSI-RS and a PUCCH carrying HARQ-ACK, the priority between CSI-RS and the PUCCH carrying HARQ-ACK is determined based on the first criterion or the second criterion.

[0173] In some embodiments, Method 3 can be combined with Method 1 above to obtain a new third criterion, referred to as Method 5; or it can be combined with Method 2 above to obtain a new third criterion, referred to as Method 6. This application will not elaborate further on this.

[0174] Method 4:

[0175] In some embodiments, the third criterion includes:

[0176] In the event of a collision between a Type II downlink transmission and a Type II uplink transmission, the priority between the two transmissions is determined based on either the first or the second criterion; or...

[0177] In the event of a collision between a Type II downlink transmission and a Type II uplink transmission, the Type II downlink transmission has a lower priority than the Type II uplink transmission.

[0178] For example, in the event of a collision between an uncertain semi-static configuration downlink transmission and an uncertain semi-static configuration uplink transmission, priority is determined according to a first criterion or a second criterion. For instance, in the case of a collision between a PDCCH candidate and a CG-PUSCH in the USS, the priority between the PDCCH candidate and the CG-PUSCH in the USS is determined based on the first criterion or the second criterion.

[0179] For example, in the event of a collision between an uncertain semi-static configuration downlink transmission and an uncertain semi-static configuration uplink transmission, the uncertain semi-static configuration downlink transmission has a lower priority than the uncertain semi-static configuration uplink transmission. For instance, if a collision occurs between a PDCCH candidate in the USS and a CG-PUSCH, the PDCCH candidate in the USS has a lower priority than the CG-PUSCH. That is, although both the PDCCH candidate in the USS and the CG-PUSCH are related to data transmission, from the perspective of the terminal device, if it is determined that the CG-PUSCH should be sent, and a collision occurs between the PDCCH candidate in the USS and the CG-PUSCH, since the PDCCH may or may not be received in the USS, the CG-PUSCH can still be sent (i.e., the CG-PUSCH is considered to have a higher priority).

[0180] In some embodiments, Method 4 can be combined with Method 1 to obtain a new third criterion, referred to as Method 7; or it can be combined with Method 2 to obtain a new third criterion, referred to as Method 8, which will not be elaborated further in this application. In some embodiments, Method 1, Method 3 and Method 4 can be combined to obtain a new third criterion, referred to as Method 9; Method 2, Method 3 and Method 4 can be combined to obtain a new third criterion, referred to as Method 10, which will not be elaborated further in this application.

[0181] Before introducing the fourth and fifth criteria, let's first introduce a concept: the first listening requirement.

[0182] Understandably, the PDCCH transmitted in the Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH CSS is used to schedule the transmission of important messages such as system messages, broadcast messages, random access responses, small data transmissions (SDT), paging messages, and paging early indications (PEI). For example, SIB19, which carries ephemeris information, is also scheduled via the PDCCH transmitted in the Type-0A PDCCH CSS. Therefore, when a terminal device needs to listen to the Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH CSS, such as when the terminal device needs to listen to paging messages, or needs to listen to updated system messages, or needs to receive SIB (System Information Block) 19, or needs to receive RAR (Random Access Response), or when the terminal device is in the initial access process, the PDCCH candidates included in the Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH CSS should have a higher priority. If the terminal device does not need to listen to the Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH CSS, then the PDCCH candidates included in the Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH CSS should have a lower priority. In this embodiment, for ease of understanding, the terminal device's listening requirement for the Type-0 / 0A / 0B / 1 / 2 / 2APDCCH CSS is referred to as the first listening requirement.

[0183] In some embodiments, the first listening requirement includes at least one of the following:

[0184] After receiving the indication information indicating system message updates, listen for the PDCCH candidate requirements of the scheduling system messages;

[0185] After sending PRACH (Physical Random Access Channel), listen for the PDCCH candidate requests for scheduling RAR.

[0186] The requirement to monitor and schedule PDCCH candidates for paging messages;

[0187] Listen for requests to PDCCH candidates that carry paging advance indication;

[0188] After the ephemeris information expires, listen for the demand for PDCCH candidates carrying ephemeris information in SIB19;

[0189] Listen for the PDCCH candidate requirements of the SDT scheduling;

[0190] The requirement for PDCCH candidates to listen to scheduling system messages during the initial access process.

[0191] In some embodiments, the first listening requirement may include a listening requirement for all or part of the PDCCH candidates transmitted in the CSS. This application provides only a few examples and does not list them all. For instance, the first listening requirement may also include a requirement to listen for PDCCH candidates scheduled for SIBs other than SIB19.

[0192] 4. Fourth Principle

[0193] In some embodiments, the priority criteria further include a fourth criterion. In some embodiments, in addition to the first, second, and third criteria, the priority criteria also include a fourth criterion. That is, the priority criteria may include a fourth criterion, and at least one of the first, second, and third criteria.

[0194] In some embodiments, when the priority criterion includes a fourth criterion, and the priority criterion includes at least one of a first criterion, a second criterion, and a third criterion, the terminal device first determines the priority between downlink and uplink transmissions based on the fourth criterion. In some embodiments, when the priority criterion includes both a fourth criterion and a first criterion, the terminal device first determines the priority between downlink and uplink transmissions based on the fourth criterion; if the fourth criterion cannot determine the priority between downlink and uplink transmissions, then the priority between downlink and uplink transmissions is determined based on the first criterion. In some embodiments, when the priority criterion includes both a fourth criterion and a second criterion, the terminal device first determines the priority between downlink and uplink transmissions based on the fourth criterion; if the fourth criterion cannot determine the priority between downlink and uplink transmissions, then the priority between downlink and uplink transmissions is determined based on the second criterion; if the second criterion also cannot determine the priority between downlink and uplink transmissions, then the priority between downlink and uplink transmissions is determined based on the first criterion. In some embodiments, when the priority criteria include a fourth criterion, a third criterion, a second criterion, and a first criterion, the terminal device determines the priority between downlink transmission and uplink transmission in the order of the fourth criterion, the third criterion, the second criterion, and the first criterion, until the priority between downlink transmission and uplink transmission is obtained.

[0195] In some embodiments, the fourth criterion may be predefined or preconfigured, or it may be configured by the network device.

[0196] In some embodiments, the fourth criterion includes at least one of the following:

[0197] When the uplink transmission is an uplink channel carrying HARQ-ACK, the uplink channel carrying HARQ-ACK has higher priority than the downlink transmission.

[0198] When the downlink transmission is a PDCCH candidate in Type-0 / 0A / 0B / 1 / 2 / 2APDCCH CSS, if the terminal device has a first listening requirement, the PDCCH candidate in Type-0 / 0A / 0B / 1 / 2 / 2APDCCH CSS has a higher priority than the uplink transmission except for the uplink channel carrying HARQ-ACK; otherwise, the PDCCH candidate in Type-0 / 0A / 0B / 1 / 2 / 2APDCCH CSS has a lower priority than the uplink transmission.

[0199] The first monitoring requirement is for monitoring the PDCCH candidates in Type-0 / 0A / 0B / 1 / 2 / 2APDCCH CSS. The uplink channel carrying HARQ-ACK is either PUCCH or PUSCH carrying HARQ-ACK.

[0200] Understandably, uplink transmissions carrying HARQ-ACK are used to reflect the downlink data reception status of the terminal device. When the terminal device sends an ACK, if the network device does not receive the ACK sent by the terminal device, the network device will assume that the downlink transmission of the terminal device has failed, thus scheduling a retransmission of the downlink transmission for the terminal device, resulting in a waste of resources. To avoid this situation, uplink transmissions carrying HARQ-ACK should have a higher priority.

[0201] For example, in the event of a collision between a PUCCH carrying HARQ-ACK and a semi-static downlink transmission, the PUCCH carrying HARQ-ACK has a higher priority; and / or,

[0202] When the UE needs to listen to the Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH CSS, if the PDCCH candidate in the Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH CSS collides with a semi-static uplink transmission other than the PUCCH carrying HARQ-ACK, the PDCCH candidate in the Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH CSS has higher priority; and / or,

[0203] When the UE does not need to listen to the Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH CSS, the PDCCH candidate in the Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH CSS has the lowest priority.

[0204] 5. Fifth Principle

[0205] In some embodiments, the priority criteria further include a fifth criterion. In some embodiments, in addition to the first, second, and third criteria, the priority criteria also include a fifth criterion. That is, the priority criteria may include a fifth criterion, and at least one of the first, second, and third criteria.

[0206] In some embodiments, when the priority criterion includes a fifth criterion and the priority criterion includes at least one of a first criterion, a second criterion, and a third criterion, the terminal device first determines the priority between downlink and uplink transmissions based on the fifth criterion. In some embodiments, when the priority criterion includes both a fifth criterion and a first criterion, the terminal device first determines the priority between downlink and uplink transmissions based on the fifth criterion; if the fifth criterion cannot determine the priority between downlink and uplink transmissions, then the priority between downlink and uplink transmissions is determined based on the first criterion. In some embodiments, when the priority criterion includes both a fifth criterion and a second criterion, the terminal device first determines the priority between downlink and uplink transmissions based on the fifth criterion; if the fifth criterion cannot determine the priority between downlink and uplink transmissions, then the priority between downlink and uplink transmissions is determined based on the second criterion; if the second criterion also cannot determine the priority between downlink and uplink transmissions, then the priority between downlink and uplink transmissions is determined based on the first criterion. In some embodiments, when the priority criteria include the fifth criterion, the third criterion, the second criterion, and the first criterion, the terminal device determines the priority between downlink transmission and uplink transmission in the order of the fifth criterion, the third criterion, the second criterion, and the first criterion, until the priority between downlink transmission and uplink transmission is obtained.

[0207] In some embodiments, the fifth criterion may be predefined or preconfigured, or it may be configured by the network device.

[0208] In some embodiments, the fifth criterion includes at least one of the following:

[0209] When the downlink transmission is a PDCCH candidate in Type-0 / 0A / 0B / 1 / 2 / 2APDCCH CSS, if the terminal device has a first listening requirement, the PDCCH candidate in Type-0 / 0A / 0B / 1 / 2 / 2APDCCH CSS has a higher priority than the uplink transmission; otherwise, the PDCCH candidate in Type-0 / 0A / 0B / 1 / 2 / 2APDCCH CSS has a lower priority than the uplink transmission.

[0210] When the uplink transmission is an uplink channel carrying HARQ-ACK and the downlink transmission is not a PDCCH candidate in Type-0 / 0A / 0B / 1 / 2 / 2APDCCH CSS, the uplink channel carrying HARQ-ACK has higher priority than the downlink transmission.

[0211] The first monitoring requirement is for monitoring the PDCCH candidates in Type-0 / 0A / 0B / 1 / 2 / 2APDCCH CSS. The uplink channel carrying HARQ-ACK is either PUCCH or PUSCH carrying HARQ-ACK.

[0212] For example, when a UE needs to listen to the Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH CSS, if a PDCCH candidate in the Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH CSS collides with a semi-static uplink transmission, the PDCCH candidate in the Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH CSS has a higher priority; and / or,

[0213] In the event of a collision between a PUCCH carrying HARQ-ACK and a semi-static downlink transmission other than the PDCCH candidate in the Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH CSS, the PUCCH carrying HARQ-ACK has higher priority; and / or,

[0214] When the UE does not need to listen to the Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH CSS, the PDCCH candidate in the Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH CSS has the lowest priority.

[0215] The above embodiments introduce five possible criteria, which can be combined to obtain priority criteria. Exemplary embodiments are also provided in this application.

[0216] Example 1: Priority criteria include the first criterion.

[0217] In some embodiments, when a downlink transmission collides with an uplink transmission, the terminal device determines the priority between the downlink and uplink transmissions based on a first criterion. For example, if a collision occurs between a semi-static configuration downlink transmission and a semi-static configuration uplink transmission of the UE, the UE determines the transmission direction according to a first criterion predefined in the protocol.

[0218] In some embodiments, the first criterion includes a higher priority for downlink transmissions than for uplink transmissions. For example, the protocol predefined priority (first criterion) is that the priority of semi-static configuration downlink transmissions is higher than that of semi-static configuration uplink transmissions. If a collision occurs between a UE's semi-static configuration downlink transmission and a semi-static configuration uplink transmission, the UE listens for or receives the semi-static configuration downlink transmission according to the protocol predefined priority (first criterion).

[0219] In some embodiments, the first criterion includes a lower priority for downlink transmissions than for uplink transmissions. For example, the protocol-predefined priority (first criterion) is that the priority of semi-static configuration downlink transmissions is lower than that of semi-static configuration uplink transmissions. If a collision occurs between a UE's semi-static configuration downlink transmission and a semi-static configuration uplink transmission, the UE sends a semi-static configuration uplink transmission according to the protocol-predefined priority (first criterion).

[0220] Example 2: Priority criteria include a first criterion and / or a second criterion.

[0221] In some embodiments, when a downlink transmission collides with an uplink transmission, the terminal device determines the priority between the downlink and uplink transmissions based on a second criterion. For example, if a collision occurs between a UE's semi-static configuration downlink transmission and a semi-static configuration uplink transmission, the UE determines the transmission direction according to the second criterion configured by the network device.

[0222] In some embodiments, where the priority criteria include a second criterion based on network device configuration, the terminal device determines the priority between downlink and uplink transmissions based on the second criterion based on network device configuration; otherwise, the terminal device determines the priority between downlink and uplink transmissions based on a predefined first criterion.

[0223] For example, if a collision occurs between a UE's semi-static configuration downlink transmission and a semi-static configuration uplink transmission, if the network device has a configured priority, the UE determines the transmission direction according to the priority configured by the network device (second criterion); if the network device does not have a configured priority, the UE determines the transmission direction according to the priority predefined by the protocol (first criterion).

[0224] In some embodiments, if a collision occurs between a UE's semi-static configuration downlink transmission and a semi-static configuration uplink transmission, the UE determines the transmission direction according to the protocol-predefined priority (first criterion); if the network device wants to change the protocol-predefined priority, the network device configures the priority, and the UE determines the transmission direction according to the priority configured by the network device (second criterion).

[0225] In one example, the network device directly configures the transmission direction priority.

[0226] In some embodiments, the second criterion includes a higher priority for downlink transmissions than for uplink transmissions. For example, the network device configuration priority (second criterion) is such that a semi-static configuration downlink transmission has a higher priority than a semi-static configuration uplink transmission. If a collision occurs between a UE's semi-static configuration downlink transmission and a semi-static configuration uplink transmission, the UE listens for or receives the semi-static configuration downlink transmission according to the network device configuration priority (second criterion).

[0227] In some embodiments, the second criterion includes a lower priority for downlink transmissions than for uplink transmissions. For example, the network device configuration priority (second criterion) is such that the priority of semi-static configuration downlink transmissions is lower than that of semi-static configuration uplink transmissions. If a collision occurs between a UE's semi-static configuration downlink transmission and a semi-static configuration uplink transmission, the UE transmits the semi-static configuration uplink transmission according to the network device configuration priority (second criterion).

[0228] In another example, the network device configuration changes the predefined priority of the protocol, or the network device configuration maintains the predefined priority of the protocol. Exemplarily, the second criterion includes whether the first criterion is changed. Exemplarily, the network device configuration changes the predefined priority of the protocol (first criterion).

[0229] In some embodiments, the second criterion includes modifying the first criterion. For example, the protocol-predefined priority (first criterion) is that the priority of semi-static configuration downlink transmission is lower than the priority of semi-static configuration uplink transmission, and the network device-configured priority (second criterion) is that the priority of semi-static configuration downlink transmission is higher than the priority of semi-static configuration uplink transmission. Alternatively, the protocol-predefined priority (first criterion) is that the priority of semi-static configuration downlink transmission is higher than the priority of semi-static configuration uplink transmission, and the network device-configured priority (second criterion) is that the priority of semi-static configuration downlink transmission is lower than the priority of semi-static configuration uplink transmission.

[0230] For example, the protocol predefined priority is that the priority of semi-static configuration downlink transmission is higher than the priority of semi-static configuration uplink transmission. If a collision occurs between the UE's semi-static configuration downlink transmission and semi-static configuration uplink transmission, the UE listens for or receives the semi-static configuration downlink transmission according to the protocol predefined priority. If the network device wants to change the protocol predefined priority, the network device configures the priority of semi-static configuration downlink transmission to be lower than the priority of semi-static configuration uplink transmission, or changes the protocol predefined priority. After receiving the configuration information from the network device, if a collision occurs between the UE's semi-static configuration downlink transmission and semi-static configuration uplink transmission, the UE sends the semi-static configuration uplink transmission according to the network device's configuration information.

[0231] Example 3: Priority criteria include the first criterion and the third criterion.

[0232] Since there are multiple possible implementations of the third criterion, for ease of understanding, this application embodiment uses the above-mentioned method nine as an example for illustrative purposes.

[0233] Example 1, Method 9 can be implemented as follows:

[0234] The third criterion includes at least one of the following:

[0235] In the event of a collision between a Type I downlink transmission and a Type II uplink transmission, the Type I downlink transmission has higher priority than the Type II uplink transmission.

[0236] In the event of a collision between a Type II downlink transmission and a Type I uplink transmission, the Type II downlink transmission has a lower priority than the Type I uplink transmission.

[0237] In the event of a collision between a Type I downlink transmission and a Type I uplink transmission, the priority between the Type I downlink transmission and the Type I uplink transmission shall be determined based on either the first criterion or the second criterion.

[0238] In the event of a collision between a Type II downlink transmission and a Type II uplink transmission, the priority between the Type II downlink transmission and the Type II uplink transmission shall be determined based on either the first criterion or the second criterion.

[0239] For example, if a collision occurs between a UE's semi-static configuration downlink transmission and a semi-static configuration uplink transmission, in the case of a collision between a determined semi-static configuration downlink transmission and an uncertain semi-static configuration uplink transmission, the determined semi-static configuration downlink transmission has a higher priority than the uncertain semi-static configuration uplink transmission; in the case of a collision between an uncertain semi-static configuration downlink transmission and a determined semi-static configuration uplink transmission, the uncertain semi-static configuration downlink transmission has a lower priority than the determined semi-static configuration uplink transmission; in the case of a collision between a determined semi-static configuration downlink transmission and a determined semi-static configuration uplink transmission, or a collision between an uncertain semi-static configuration downlink transmission and an uncertain semi-static configuration uplink transmission, the UE determines the transmission direction according to the priority predefined in the protocol (first criterion).

[0240] For example, the protocol predefined priority (first criterion) prioritizes semi-static configuration downlink transmissions as lower than semi-static configuration uplink transmissions. If a collision occurs between a UE's semi-static configuration downlink transmission and a semi-static configuration uplink transmission, the UE determines the transmission direction as follows:

[0241] If the semi-static configuration downlink transmission is SPS PDSCH, CSI-RS, or DL ​​PRS, and the semi-static configuration uplink transmission is PUCCH or CG-PUSCH for SR, then the UE receives SPS PDSCH, CSI-RS, or DL ​​PRS.

[0242] If the semi-static configuration downlink transmission is PDCCH, and the semi-static configuration uplink transmission is PUCCH carrying HARQ-ACK, PUCCH carrying CSI, PUSCH carrying SP-CSI, or SRS, then the UE sends PUCCH carrying HARQ-ACK, PUCCH carrying CSI, PUSCH carrying SP-CSI, or SRS.

[0243] For all other cases, the UE sends a semi-static configuration uplink transmission according to the priority (first criterion) predefined by the protocol.

[0244] For example, Table 1 provides an example of the priorities when a collision occurs between different semi-static configuration downlink transmissions and semi-static configuration uplink transmissions determined according to the first and third criteria. In this table, "H" indicates that the priority of the semi-static configuration downlink transmission corresponding to the row in the table is higher than the priority of the semi-static configuration uplink transmission corresponding to the column in the table, "L" indicates that the priority of the semi-static configuration downlink transmission corresponding to the row in the table is lower than the priority of the semi-static configuration uplink transmission corresponding to the column in the table, and "P" indicates that the priority is determined according to the first criterion.

[0245] Table 1: An example of priority determination

[0246] Example 2, Method 9 can also be implemented as follows:

[0247] The third criterion includes at least one of the following:

[0248] In the event of a collision between a Type I downlink transmission and a Type II uplink transmission, the Type I downlink transmission has higher priority than the Type II uplink transmission.

[0249] In the event of a collision between a Type II downlink transmission and a Type I uplink transmission, the Type II downlink transmission has a lower priority than the Type I uplink transmission.

[0250] In the event of a collision between a Type I downlink transmission and a Type I uplink transmission, the priority between the Type I downlink transmission and the Type I uplink transmission shall be determined based on either the first criterion or the second criterion.

[0251] In the event of a collision between a Type II downlink transmission and a Type II uplink transmission, the Type II downlink transmission has a lower priority than the Type II uplink transmission.

[0252] For example, if a collision occurs between a UE's semi-static configuration downlink transmission and a semi-static configuration uplink transmission, in the case of a collision between a determined semi-static configuration downlink transmission and an uncertain semi-static configuration uplink transmission, the determined semi-static configuration downlink transmission has a higher priority than the uncertain semi-static configuration uplink transmission; in the case of a collision between an uncertain semi-static configuration downlink transmission and a determined semi-static configuration uplink transmission, the uncertain semi-static configuration downlink transmission has a lower priority than the determined semi-static configuration uplink transmission; in the case of a collision between a determined semi-static configuration downlink transmission and a determined semi-static configuration uplink transmission, the UE determines the transmission direction according to the priority predefined by the protocol (first criterion); in the case of a collision between an uncertain semi-static configuration downlink transmission and an uncertain semi-static configuration uplink transmission, the uncertain semi-static configuration downlink transmission has a lower priority than the uncertain semi-static configuration uplink transmission.

[0253] For example, the protocol predefined priority (first criterion) prioritizes semi-static configuration downlink transmissions as lower than semi-static configuration uplink transmissions. If a collision occurs between a UE's semi-static configuration downlink transmission and a semi-static configuration uplink transmission, the UE determines the transmission direction as follows:

[0254] If the semi-static configuration downlink transmission is SPS PDSCH, CSI-RS, or DL ​​PRS, and the semi-static configuration uplink transmission is PUCCH or CG-PUSCH for SR, then the UE receives SPS PDSCH, CSI-RS, or DL ​​PRS.

[0255] If the semi-static configuration downlink transmission is PDCCH, and the semi-static configuration uplink transmission is PUCCH carrying HARQ-ACK, PUCCH carrying CSI, PUSCH carrying SP-CSI, or SRS, then the UE sends PUCCH carrying HARQ-ACK, PUCCH carrying CSI, PUSCH carrying SP-CSI, or SRS.

[0256] If the semi-static configuration downlink transmission is PDCCH and the semi-static configuration uplink transmission is PUCCH or CG-PUSCH for SR, then the UE sends PUCCH or CG-PUSCH for SR.

[0257] For all other cases, the UE sends a semi-static configuration uplink transmission according to the priority (first criterion) predefined by the protocol.

[0258] For example, Table 2 provides examples of the priorities when a collision occurs between different semi-static configuration downlink transmissions and semi-static configuration uplink transmissions determined according to the first and third criteria. In this table, "H" indicates that the priority of the semi-static configuration downlink transmission corresponding to the row in the table is higher than the priority of the semi-static configuration uplink transmission corresponding to the column in the table, "L" indicates that the priority of the semi-static configuration downlink transmission corresponding to the row in the table is lower than the priority of the semi-static configuration uplink transmission corresponding to the column in the table, and "P" indicates that the priority is determined according to the first criterion.

[0259] Table 2: Two Examples of Priority Determination

[0260] Example 4: Priority criteria include the first criterion, the second criterion, and the third criterion.

[0261] Since there are multiple possible implementations of the third criterion, for ease of understanding, this application embodiment uses the above-mentioned method nine as an example for illustrative purposes.

[0262] Example 1, Method 9 can be implemented as follows:

[0263] The third criterion includes at least one of the following:

[0264] In the event of a collision between a Type I downlink transmission and a Type II uplink transmission, the Type I downlink transmission has higher priority than the Type II uplink transmission.

[0265] In the event of a collision between a Type II downlink transmission and a Type I uplink transmission, the Type II downlink transmission has a lower priority than the Type I uplink transmission.

[0266] In the event of a collision between a Type I downlink transmission and a Type I uplink transmission, the priority between the Type I downlink transmission and the Type I uplink transmission shall be determined based on either the first criterion or the second criterion.

[0267] In the event of a collision between a Type II downlink transmission and a Type II uplink transmission, the priority between the Type II downlink transmission and the Type II uplink transmission shall be determined based on either the first criterion or the second criterion.

[0268] For example, if a collision occurs between a UE's semi-static configuration downlink transmission and a semi-static configuration uplink transmission, in the case of a collision between a determined semi-static configuration downlink transmission and an uncertain semi-static configuration uplink transmission, the determined semi-static configuration downlink transmission has a higher priority than the uncertain semi-static configuration uplink transmission; in the case of a collision between an uncertain semi-static configuration downlink transmission and a determined semi-static configuration uplink transmission, the uncertain semi-static configuration downlink transmission has a lower priority than the determined semi-static configuration uplink transmission; in the case of a collision between a determined semi-static configuration downlink transmission and a determined semi-static configuration uplink transmission, or a collision between an uncertain semi-static configuration downlink transmission and an uncertain semi-static configuration uplink transmission, if the network device configures a priority, then the UE determines the transmission direction according to the priority configured by the network device (second criterion); otherwise, the UE determines the transmission direction according to the priority predefined by the protocol (first criterion).

[0269] For example, the protocol predefines the priority as follows: the priority of semi-static configuration downlink transmission is lower than the priority of semi-static configuration uplink transmission. The network device configures the priority as follows: the priority of semi-static configuration downlink transmission is higher than the priority of semi-static configuration uplink transmission. If a collision occurs between the UE's semi-static configuration downlink transmission and semi-static configuration uplink transmission, the UE's transmission direction will be as follows:

[0270] If the semi-static configuration downlink transmission is SPS PDSCH, CSI-RS, or DL ​​PRS, and the semi-static configuration uplink transmission is PUCCH or CG-PUSCH for SR, then the UE receives SPS PDSCH, CSI-RS, or DL ​​PRS.

[0271] If the semi-static configuration downlink transmission is PDCCH, and the semi-static configuration uplink transmission is PUCCH carrying HARQ-ACK, PUCCH carrying CSI, PUSCH carrying SP-CSI, or SRS, then the UE sends PUCCH carrying HARQ-ACK, PUCCH carrying CSI, PUSCH carrying SP-CSI, or SRS.

[0272] In cases other than those described above, if the network device is configured with a priority, the UE will listen for or receive semi-static configuration downlink transmissions according to the network device's configuration; if the network device is not configured with a priority, the UE will send semi-static configuration uplink transmissions according to the priority predefined by the protocol.

[0273] Example 2, Method 9 can also be implemented as follows:

[0274] The third criterion includes at least one of the following:

[0275] In the event of a collision between a Type I downlink transmission and a Type II uplink transmission, the Type I downlink transmission has higher priority than the Type II uplink transmission.

[0276] In the event of a collision between a Type II downlink transmission and a Type I uplink transmission, the Type II downlink transmission has a lower priority than the Type I uplink transmission.

[0277] In the event of a collision between a Type I downlink transmission and a Type I uplink transmission, the priority between the Type I downlink transmission and the Type I uplink transmission shall be determined based on either the first criterion or the second criterion.

[0278] In the event of a collision between a Type II downlink transmission and a Type II uplink transmission, the Type II downlink transmission has a lower priority than the Type II uplink transmission.

[0279] For example, if a collision occurs between a UE's semi-static configuration downlink transmission and a semi-static configuration uplink transmission, in the case of a collision between a determined semi-static configuration downlink transmission and an uncertain semi-static configuration uplink transmission, the determined semi-static configuration downlink transmission has a higher priority than the uncertain semi-static configuration uplink transmission; in the case of a collision between an uncertain semi-static configuration downlink transmission and a determined semi-static configuration uplink transmission, the uncertain semi-static configuration downlink transmission has a lower priority than the determined semi-static configuration uplink transmission; in the case of a collision between a determined semi-static configuration downlink transmission and a determined semi-static configuration uplink transmission, if the network device configures a priority, then the UE determines the transmission direction according to the priority configured by the network device (second criterion); otherwise, the UE determines the transmission direction according to the priority predefined by the protocol (first criterion); in the case of a collision between an uncertain semi-static configuration downlink transmission and an uncertain semi-static configuration uplink transmission, the uncertain semi-static configuration downlink transmission has a lower priority than the uncertain semi-static configuration uplink transmission.

[0280] For example, the protocol predefined priority (first criterion) prioritizes semi-static configuration downlink transmissions as lower than semi-static configuration uplink transmissions. If a collision occurs between a UE's semi-static configuration downlink transmission and a semi-static configuration uplink transmission, the UE determines the transmission direction as follows:

[0281] If the semi-static configuration downlink transmission is SPS PDSCH, CSI-RS, or DL ​​PRS, and the semi-static configuration uplink transmission is PUCCH or CG-PUSCH for SR, then the UE receives SPS PDSCH, CSI-RS, or DL ​​PRS.

[0282] If the semi-static configuration downlink transmission is PDCCH, and the semi-static configuration uplink transmission is PUCCH carrying HARQ-ACK, PUCCH carrying CSI, PUSCH carrying SP-CSI, or SRS, then the UE sends PUCCH carrying HARQ-ACK, PUCCH carrying CSI, PUSCH carrying SP-CSI, or SRS.

[0283] If the semi-static configuration downlink transmission is PDCCH and the semi-static configuration uplink transmission is PUCCH or CG-PUSCH for SR, then the UE sends PUCCH or CG-PUSCH for SR.

[0284] In cases other than those described above, if the network device is configured with a priority, the UE will listen for or receive semi-static configuration downlink transmissions according to the network device's configuration; if the network device is not configured with a priority, the UE will send semi-static configuration uplink transmissions according to the priority predefined by the protocol.

[0285] Example 5: Priority criteria include the first criterion and the fourth criterion.

[0286] In some embodiments, where the priority criteria include a fourth criterion and a first criterion, the terminal device first determines the priority between downlink and uplink transmissions based on the fourth criterion.

[0287] For example, if a collision occurs between a UE's semi-static configuration downlink transmission and a semi-static configuration uplink transmission, the PUCCH carrying HARQ-ACK has the highest priority; the PDCCH candidate in the Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH CSS has the second highest priority, after the PUCCH carrying HARQ-ACK; otherwise, the UE determines the transmission direction according to the priority predefined by the protocol (first criterion).

[0288] For example, if a collision occurs between a UE's semi-static configuration downlink transmission and a semi-static configuration uplink transmission, the PUCCH carrying HARQ-ACK has the highest priority; when the UE needs to listen to the Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH CSS, the PDCCH candidate in the Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH CSS has the second highest priority, only lower than the PUCCH carrying HARQ-ACK; when the UE does not need to listen to the Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH CSS, the PDCCH candidate in the Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH CSS has the lowest priority; otherwise, the UE determines the transmission direction according to the priority predefined by the protocol.

[0289] For example, the protocol predefined priority (first criterion) prioritizes semi-static configuration downlink transmissions as lower than semi-static configuration uplink transmissions. If a collision occurs between a UE's semi-static configuration downlink transmission and a semi-static configuration uplink transmission, the UE determines the transmission direction as follows:

[0290] If the semi-static configuration uplink transmission is a PUCCH carrying HARQ-ACK, then the UE sends a PUCCH carrying HARQ-ACK.

[0291] Otherwise, if the UE needs to listen to the Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH CSS, and the downlink transmission is configured semi-statically as a PDCCH candidate in the Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH CSS, then the UE listens to the PDCCH candidate in the Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH CSS.

[0292] Otherwise, if the UE does not need to listen to the Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH CSS, and the semi-static configuration downlink transmission is a PDCCH candidate in the Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH CSS, then the UE sends a semi-static configuration uplink transmission.

[0293] Otherwise, the UE sends a semi-static configuration uplink transmission according to the priority predefined by the protocol.

[0294] Example 6: Priority criteria include the first criterion, the second criterion, and the fourth criterion.

[0295] In some embodiments, where the priority criteria include a fourth criterion, a second criterion, and a first criterion, the terminal device first determines the priority between downlink and uplink transmissions based on the fourth criterion.

[0296] For example, if a collision occurs between a UE's semi-static configuration downlink transmission and a semi-static configuration uplink transmission, the PUCCH carrying HARQ-ACK has the highest priority; the PDCCH candidate in the Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH CSS has the second highest priority, after the PUCCH carrying HARQ-ACK; otherwise, if the network device configures priorities, the UE determines the transmission direction according to the priorities configured by the network device (second criterion), otherwise the UE determines the transmission direction according to the priorities predefined by the protocol (first criterion).

[0297] For example, if a collision occurs between a UE's semi-static configuration downlink transmission and a semi-static configuration uplink transmission, the PUCCH carrying HARQ-ACK has the highest priority; when the UE needs to listen to the Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH CSS, the PDCCH candidate in the Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH CSS has the second highest priority, only lower than the PUCCH carrying HARQ-ACK; when the UE does not need to listen to the Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH CSS, the PDCCH candidate in the Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH CSS has the lowest priority; otherwise, if the network device configures priorities, the UE determines the transmission direction according to the priorities configured by the network device (second criterion); otherwise, the UE determines the transmission direction according to the priorities predefined by the protocol (first criterion).

[0298] For example, the protocol predefined priority (first criterion) prioritizes semi-static configuration downlink transmissions over semi-static configuration uplink transmissions, while the network device configuration priority (second criterion) prioritizes semi-static configuration downlink transmissions over semi-static configuration uplink transmissions. If a collision occurs between the UE's semi-static configuration downlink transmissions and semi-static configuration uplink transmissions, the UE determines the transmission direction as follows:

[0299] If the semi-static configuration uplink transmission is a PUCCH carrying HARQ-ACK, then the UE sends a PUCCH carrying HARQ-ACK.

[0300] Otherwise, if the UE needs to listen to the Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH CSS, and the downlink transmission is configured semi-statically as a PDCCH candidate in the Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH CSS, then the UE listens to the PDCCH candidate in the Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH CSS.

[0301] Otherwise, if the UE does not need to listen to the Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH CSS, and the semi-static configuration downlink transmission is a PDCCH candidate in the Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH CSS, then the UE sends a semi-static configuration uplink transmission.

[0302] Otherwise, if the network device is configured with a priority, the UE will send a semi-static configuration uplink transmission according to the network device's configuration; if the network device is not configured with a priority, the UE will listen for or receive a semi-static configuration downlink transmission according to the priority (first criterion) predefined by the protocol.

[0303] Example 7: Priority criteria include the first criterion and the fifth criterion.

[0304] In some embodiments, where the priority criteria include a fifth criterion and a first criterion, the terminal device first determines the priority between downlink and uplink transmissions based on the fifth criterion.

[0305] For example, if a collision occurs between a UE's semi-static configuration downlink transmission and a semi-static configuration uplink transmission, the PDCCH candidate in the Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH CSS has the highest priority; the PUCCH carrying HARQ-ACK has the second highest priority, after the PDCCH candidate in the Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH CSS; otherwise, the UE determines the transmission direction according to the priority predefined by the protocol (first criterion).

[0306] For example, if a collision occurs between the UE's semi-static configuration downlink transmission and semi-static configuration uplink transmission, and the UE needs to listen to the Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH CSS, the PDCCH candidate in the Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH CSS has the highest priority; the PUCCH carrying HARQ-ACK has the second highest priority, followed by the PDCCH candidate in the Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH CSS. If the UE does not need to listen to the Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH CSS, the PUCCH carrying HARQ-ACK has the highest priority, and the PDCCH candidate in the Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH CSS has the lowest priority. In other cases, the UE determines the transmission direction according to the priority predefined by the protocol (first criterion).

[0307] For example, the protocol predefined priority (first criterion) prioritizes semi-static configuration downlink transmissions as lower than semi-static configuration uplink transmissions. If a collision occurs between a UE's semi-static configuration downlink transmission and a semi-static configuration uplink transmission, the UE determines the transmission direction as follows:

[0308] If the UE needs to listen to the Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH CSS, and the downlink transmission is configured to be a PDCCH candidate in the Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH CSS in a semi-static configuration, then the UE will listen to the PDCCH candidate in the Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH CSS.

[0309] Otherwise, if the semi-static configuration uplink transmission is a PUCCH carrying HARQ-ACK, then the UE sends a PUCCH carrying HARQ-ACK.

[0310] Otherwise, if the UE does not need to listen to the Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH CSS, and the semi-static configuration downlink transmission is a PDCCH candidate in the Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH CSS, then the UE sends a semi-static configuration uplink transmission.

[0311] Otherwise, the UE sends a semi-static configuration uplink transmission according to the priority (first criterion) predefined by the protocol.

[0312] Example 8: Priority criteria include the first criterion, the second criterion, and the fifth criterion.

[0313] In some embodiments, where the priority criteria include a fifth criterion, a second criterion, and a first criterion, the terminal device first determines the priority between downlink and uplink transmissions based on the fifth criterion.

[0314] For example, if a collision occurs between a UE's semi-static configuration downlink transmission and a semi-static configuration uplink transmission, the PDCCH candidate in the Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH CSS has the highest priority; the PUCCH carrying HARQ-ACK has the second highest priority, after the PDCCH candidate in the Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH CSS; otherwise, if the network device configures a priority, the UE determines the transmission direction according to the priority configured by the network device (second criterion); otherwise, the UE determines the transmission direction according to the priority predefined by the protocol (first criterion).

[0315] For example, if a collision occurs between the UE's semi-static configuration downlink transmission and semi-static configuration uplink transmission, and the UE needs to listen to the Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH CSS, the PDCCH candidate in the Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH CSS has the highest priority; the PUCCH carrying HARQ-ACK has the second highest priority, followed by the PDCCH candidate in the Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH CSS. If the UE does not need to listen to the Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH CSS, the PUCCH carrying HARQ-ACK has the highest priority, and the PDCCH candidate in the Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH CSS has the lowest priority. In other cases, if the network device configures priorities, the UE determines the transmission direction according to the priorities configured by the network device (second criterion); otherwise, the UE determines the transmission direction according to the priorities predefined by the protocol (first criterion).

[0316] For example, the protocol predefined priority (first criterion) prioritizes semi-static configuration downlink transmissions over semi-static configuration uplink transmissions, while the network device configuration priority (second criterion) prioritizes semi-static configuration downlink transmissions over semi-static configuration uplink transmissions. If a collision occurs between the UE's semi-static configuration downlink transmissions and semi-static configuration uplink transmissions, the UE determines the transmission direction as follows:

[0317] If the UE needs to listen to the Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH CSS, and the downlink transmission is configured to be a PDCCH candidate in the Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH CSS in a semi-static configuration, then the UE will listen to the PDCCH candidate in the Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH CSS.

[0318] Otherwise, if the semi-static configuration uplink transmission is a PUCCH carrying HARQ-ACK, then the UE sends a PUCCH carrying HARQ-ACK.

[0319] Otherwise, if the UE does not need to listen to the Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH CSS, and the semi-static configuration downlink transmission is a PDCCH candidate in the Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH CSS, then the UE sends a semi-static configuration uplink transmission.

[0320] Otherwise, if the network device is configured with a priority, the UE will send a semi-static configuration uplink transmission according to the network device's configuration; if the network device is not configured with a priority, the UE will listen for or receive a semi-static configuration downlink transmission according to the priority (first criterion) predefined by the protocol.

[0321] Example 9: Priority criteria include the first criterion, the third criterion, and the fourth criterion.

[0322] In some embodiments, where the priority criteria include a fourth criterion, a third criterion, and a first criterion, the terminal device first determines the priority between downlink and uplink transmissions based on the fourth criterion. Since the third criterion has multiple possible implementations, for ease of understanding, this embodiment uses Example 1 from the above-described method nine as an example for illustrative purposes.

[0323] For example, if a collision occurs between a UE's semi-static configuration downlink transmission and a semi-static configuration uplink transmission, the PUCCH carrying HARQ-ACK has the highest priority; the PDCCH candidate in the Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH CSS has the second highest priority after the PUCCH carrying HARQ-ACK; in the case of a collision between a determined semi-static configuration downlink transmission and an uncertain semi-static configuration uplink transmission, the determined semi-static configuration downlink transmission has a higher priority; in the case of a collision between an uncertain semi-static configuration downlink transmission and a determined semi-static configuration uplink transmission, the determined semi-static configuration uplink transmission has a higher priority; in other cases, the UE determines the transmission direction according to the priority predefined by the protocol (first criterion).

[0324] In some embodiments, if a collision occurs between a UE's semi-static configuration downlink transmission and a semi-static configuration uplink transmission, the PUCCH carrying HARQ-ACK has the highest priority. When the UE needs to listen to Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH CSS, the PDCCH candidate in the Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH CSS has the second highest priority, only lower than the PUCCH carrying HARQ-ACK. When the UE does not need to listen to Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH CSS, the PDCCH candidate in the Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH CSS has the lowest priority. In the event of a collision between a determined semi-static configuration downlink transmission and an uncertain semi-static configuration uplink transmission, the determined semi-static configuration downlink transmission has a higher priority. In the event of a collision between an uncertain semi-static configuration downlink transmission and a determined semi-static configuration uplink transmission, the determined semi-static configuration uplink transmission has a higher priority. Otherwise, the UE determines the transmission direction according to the priority predefined by the protocol (first criterion).

[0325] For example, the protocol predefined priority (first criterion) prioritizes semi-static configuration downlink transmissions as lower than semi-static configuration uplink transmissions. If a collision occurs between a UE's semi-static configuration downlink transmission and a semi-static configuration uplink transmission, the UE determines the transmission direction as follows:

[0326] If the semi-static configuration uplink transmission is a PUCCH carrying HARQ-ACK, then the UE sends a PUCCH carrying HARQ-ACK.

[0327] Otherwise, if the UE needs to listen to the Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH CSS, and the downlink transmission is configured semi-statically as a PDCCH candidate in the Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH CSS, then the UE listens to the PDCCH candidate in the Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH CSS.

[0328] Otherwise, if the UE does not need to listen to the Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH CSS, and the semi-static configuration downlink transmission is a PDCCH candidate in the Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH CSS, then the UE sends a semi-static configuration uplink transmission.

[0329] Otherwise, if the semi-static downlink transmission is SPS PDSCH, CSI-RS, or DL ​​PRS, and the semi-static uplink transmission is PUCCH or CG-PUSCH for SR, then the UE receives SPS PDSCH, CSI-RS, or DL ​​PRS; or, if the semi-static downlink transmission is a PDCCH candidate in Type-3 PDCCH CSS or USS, and the semi-static uplink transmission is a PUCCH carrying CSI, a PUSCH carrying SP-CSI, or SRS, then the UE sends a PUCCH carrying CSI, a PUSCH carrying SP-CSI, or SRS.

[0330] Otherwise, the UE sends a semi-static configuration uplink transmission according to the priority (first criterion) predefined by the protocol.

[0331] For example, Table 3 provides examples of the priorities when a collision occurs between a semi-static configuration downlink transmission and a semi-static configuration uplink transmission, determined according to the first, third, and fourth criteria. In this table, "H" indicates that the priority of the semi-static configuration downlink transmission corresponding to the row in the table is higher than the priority of the semi-static configuration uplink transmission corresponding to the column in the table, "L" indicates that the priority of the semi-static configuration downlink transmission corresponding to the row in the table is lower than the priority of the semi-static configuration uplink transmission corresponding to the column in the table, and "P" indicates that the priority is determined according to the first criterion.

[0332] Table 3: Three Examples of Priority Determination

[0333] Example 10: Priority criteria include the first criterion, the second criterion, the third criterion, and the fourth criterion.

[0334] In some embodiments, where the priority criteria include a fourth criterion, a third criterion, a second criterion, and a first criterion, the terminal device first determines the priority between downlink and uplink transmissions based on the fourth criterion. Since the third criterion has multiple possible implementations, for ease of understanding, this embodiment uses Example 1 from the above-described method nine as an example for illustrative purposes.

[0335] For example, if a collision occurs between a UE's semi-static configuration downlink transmission and a semi-static configuration uplink transmission, the PUCCH carrying HARQ-ACK has the highest priority; the PDCCH candidate in the Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH CSS has the second highest priority, after the PUCCH carrying HARQ-ACK; in the case of a collision between a determined semi-static configuration downlink transmission and an uncertain semi-static configuration uplink transmission, the determined semi-static configuration downlink transmission has a higher priority; in the case of a collision between an uncertain semi-static configuration downlink transmission and a determined semi-static configuration uplink transmission, the determined semi-static configuration uplink transmission has a higher priority; in other cases, if the network device configures a priority, the UE determines the transmission direction according to the priority configured by the network device (second criterion); otherwise, the UE determines the transmission direction according to the priority predefined by the protocol (first criterion).

[0336] For example, if a collision occurs between a UE's semi-static configuration downlink transmission and a semi-static configuration uplink transmission, the PUCCH carrying HARQ-ACK has the highest priority; if the UE needs to listen to the Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH CSS, the PDCCH candidate in the Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH CSS has the second highest priority, only lower than the PUCCH carrying HARQ-ACK; if the UE does not need to listen to the Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH CSS, the Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH... In CSS, the PDCCH candidate has the lowest priority. In the event of a collision between a determined semi-static configuration downlink transmission and an uncertain semi-static configuration uplink transmission, the determined semi-static configuration downlink transmission has a higher priority. In other cases, if the network device configures a priority, the UE determines the transmission direction according to the priority configured by the network device (second criterion); otherwise, the UE determines the transmission direction according to the priority predefined by the protocol (first criterion).

[0337] For example, the protocol predefined priority (first criterion) prioritizes semi-static configuration downlink transmissions as lower than semi-static configuration uplink transmissions, while the network device configured priority (second criterion) prioritizes semi-static configuration downlink transmissions as higher than semi-static configuration uplink transmissions. If a collision occurs between the UE's semi-static configuration downlink transmissions and semi-static configuration uplink transmissions, the UE determines the transmission direction as follows:

[0338] If the semi-static configuration uplink transmission is a PUCCH carrying HARQ-ACK, then the UE sends a PUCCH carrying HARQ-ACK.

[0339] Otherwise, if the UE needs to listen to the Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH CSS, and the downlink transmission is configured semi-statically as a PDCCH candidate in the Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH CSS, then the UE listens to the PDCCH candidate in the Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH CSS.

[0340] Otherwise, if the UE does not need to listen to the Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH CSS, and the semi-static configuration downlink transmission is a PDCCH candidate in the Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH CSS, then the UE sends a semi-static configuration uplink transmission.

[0341] Otherwise, if the semi-static downlink transmission is SPS PDSCH, CSI-RS, or DL ​​PRS, and the semi-static uplink transmission is PUCCH or CG-PUSCH for SR, then the UE receives SPS PDSCH, CSI-RS, or DL ​​PRS; or, if the semi-static downlink transmission is a PDCCH candidate in Type-3 PDCCH CSS or USS, and the semi-static uplink transmission is a PUCCH carrying CSI, a PUSCH carrying SP-CSI, or SRS, then the UE sends a PUCCH carrying CSI, a PUSCH carrying SP-CSI, or SRS.

[0342] Otherwise, if the network device is configured with priority, the UE will listen for or receive semi-static configuration downlink transmissions according to the network device's configuration; if the network device is not configured with priority, the UE will send semi-static configuration uplink transmissions according to the priority predefined by the protocol (first criterion).

[0343] For example, Table 4 provides examples of priorities when a collision occurs between different semi-static configuration downlink transmissions and semi-static configuration uplink transmissions determined according to the first, second, third, and fourth criteria. In this table, "H" indicates that the priority of the semi-static configuration downlink transmission corresponding to the row in the table is higher than the priority of the semi-static configuration uplink transmission corresponding to the column in the table; "L" indicates that the priority of the semi-static configuration downlink transmission corresponding to the row in the table is lower than the priority of the semi-static configuration uplink transmission corresponding to the column in the table; and "P" indicates that if the network device configures priorities, the UE determines the priority according to the second criterion; otherwise, the UE determines the priority according to the first criterion.

[0344] Table 4: Four Examples of Priority Determination

[0345] Example 11: Priority criteria include the first criterion, the third criterion, and the fifth criterion.

[0346] In some embodiments, where the priority criteria include a fifth criterion, a third criterion, and a first criterion, the terminal device first determines the priority between downlink and uplink transmissions based on the fifth criterion. Since the third criterion has multiple possible implementations, for ease of understanding, this embodiment uses Example 1 from the above-described method nine as an example for illustrative purposes.

[0347] For example, if a collision occurs between a UE's semi-static configuration downlink transmission and a semi-static configuration uplink transmission, the PDCCH candidate in the Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH CSS has the highest priority; the PUCCH carrying HARQ-ACK has the second highest priority, after the PDCCH candidate in the Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH CSS; in the case of a collision between a determined semi-static configuration downlink transmission and an uncertain semi-static configuration uplink transmission, the determined semi-static configuration downlink transmission has a higher priority; in the case of a collision between an uncertain semi-static configuration downlink transmission and a determined semi-static configuration uplink transmission, the determined semi-static configuration uplink transmission has a higher priority; otherwise, the UE determines the transmission direction according to the priority predefined by the protocol (first criterion).

[0348] For example, if a collision occurs between a UE's semi-static configuration downlink transmission and a semi-static configuration uplink transmission, and the UE needs to listen to the Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH CSS, the PDCCH candidate in the Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH CSS has the highest priority; the PUCCH carrying HARQ-ACK has the second highest priority, after the PDCCH candidate in the Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH CSS. If the UE does not need to listen to the Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH CSS, the PUCCH carrying HARQ-ACK has the highest priority, after the Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH... In CSS, the PDCCH candidate has the lowest priority; in the event of a collision between a determined semi-static configuration downlink transmission and an uncertain semi-static configuration uplink transmission, the determined semi-static configuration downlink transmission has a higher priority; in the event of a collision between an uncertain semi-static configuration downlink transmission and a determined semi-static configuration uplink transmission, the determined semi-static configuration uplink transmission has a higher priority; otherwise, the UE determines the transmission direction according to the priority predefined by the protocol (first criterion).

[0349] For example, the protocol predefined priority (first criterion) prioritizes semi-static configuration downlink transmissions as lower than semi-static configuration uplink transmissions. If a collision occurs between a UE's semi-static configuration downlink transmission and a semi-static configuration uplink transmission, the UE determines the transmission direction as follows:

[0350] If the UE needs to listen to the Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH CSS, and the downlink transmission is configured to be a PDCCH candidate in the Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH CSS in a semi-static configuration, then the UE will listen to the PDCCH candidate in the Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH CSS.

[0351] Otherwise, if the semi-static configuration uplink transmission is a PUCCH carrying HARQ-ACK, then the UE sends a PUCCH carrying HARQ-ACK.

[0352] Otherwise, if the UE does not need to listen to the Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH CSS, and the semi-static configuration downlink transmission is a PDCCH candidate in the Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH CSS, then the UE sends a semi-static configuration uplink transmission.

[0353] Otherwise, if the semi-static downlink transmission is SPS PDSCH, CSI-RS, or DL ​​PRS, and the semi-static uplink transmission is PUCCH or CG-PUSCH for SR, then the UE receives SPS PDSCH, CSI-RS, or DL ​​PRS; or, if the semi-static downlink transmission is a PDCCH candidate in Type-3 PDCCH CSS or USS, and the semi-static uplink transmission is a PUCCH carrying CSI, a PUSCH carrying SP-CSI, or SRS, then the UE sends a PUCCH carrying CSI, a PUSCH carrying SP-CSI, or SRS.

[0354] Otherwise, the UE sends a semi-static configuration uplink transmission according to the priority (first criterion) predefined by the protocol.

[0355] For example, Table 5 provides examples of the priorities when a collision occurs between different semi-static configuration downlink and semi-static configuration uplink transmissions determined according to the first, third, and fifth criteria. In this table, "H" indicates that the priority of the semi-static configuration downlink transmission corresponding to the row in the table is higher than the priority of the semi-static configuration uplink transmission corresponding to the column in the table, "L" indicates that the priority of the semi-static configuration downlink transmission corresponding to the row in the table is lower than the priority of the semi-static configuration uplink transmission corresponding to the column in the table, and "P" indicates that the priority is determined according to the first criterion.

[0356] Table 5: Five Examples of Priority Determination

[0357] Example 12: Priority criteria include the first criterion, the second criterion, the third criterion, and the fifth criterion.

[0358] In some embodiments, where the priority criteria include a fifth criterion, a third criterion, a second criterion, and a first criterion, the terminal device first determines the priority between downlink and uplink transmissions based on the fifth criterion. Since the third criterion has multiple possible implementations, for ease of understanding, this embodiment uses Example 1 from the above-described method nine as an example for illustrative purposes.

[0359] For example, if a collision occurs between a UE's semi-static configuration downlink transmission and a semi-static configuration uplink transmission, the PDCCH candidate in the Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH CSS has the highest priority; the PUCCH carrying HARQ-ACK has the second highest priority, after the PDCCH candidate in the Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH CSS. In the case of a collision between a determined semi-static configuration downlink transmission and an uncertain semi-static configuration uplink transmission, the determined semi-static configuration downlink transmission has a higher priority. In the case of a collision between an uncertain semi-static configuration downlink transmission and a determined semi-static configuration uplink transmission, the determined semi-static configuration uplink transmission has a higher priority. In other cases, if the network device configures a priority, the UE determines the transmission direction according to the priority configured by the network device (second criterion); otherwise, the UE determines the transmission direction according to the priority predefined by the protocol (first criterion).

[0360] For example, if a collision occurs between a UE's semi-static configuration downlink transmission and a semi-static configuration uplink transmission, and the UE needs to listen to the Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH CSS, the PDCCH candidate in the Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH CSS has the highest priority; the PUCCH carrying HARQ-ACK has the second highest priority, after the PDCCH candidate in the Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH CSS. If the UE does not need to listen to the Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH CSS, the PUCCH carrying HARQ-ACK has the highest priority, after the Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH... In CSS, the PDCCH candidate has the lowest priority. In the event of a collision between a determined semi-static configuration downlink transmission and an uncertain semi-static configuration uplink transmission, the determined semi-static configuration downlink transmission has a higher priority. In other cases, if the network device configures a priority, the UE determines the transmission direction according to the priority configured by the network device (second criterion); otherwise, the UE determines the transmission direction according to the priority predefined by the protocol (first criterion).

[0361] For example, the protocol predefined priority (first criterion) prioritizes semi-static configuration downlink transmissions as lower than semi-static configuration uplink transmissions, while the network device configured priority (second criterion) prioritizes semi-static configuration downlink transmissions as higher than semi-static configuration uplink transmissions. If a collision occurs between the UE's semi-static configuration downlink transmissions and semi-static configuration uplink transmissions, the UE determines the transmission direction as follows:

[0362] If the UE needs to listen to the Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH CSS, and the downlink transmission is configured to be a PDCCH candidate in the Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH CSS in a semi-static configuration, then the UE will listen to the PDCCH candidate in the Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH CSS.

[0363] Otherwise, if the semi-static configuration uplink transmission is a PUCCH carrying HARQ-ACK, then the UE sends a PUCCH carrying HARQ-ACK.

[0364] Otherwise, if the UE does not need to listen to the Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH CSS, and the semi-static configuration downlink transmission is a PDCCH candidate in the Type-0 / 0A / 0B / 1 / 2 / 2A PDCCH CSS, then the UE sends a semi-static configuration uplink transmission.

[0365] Otherwise, if the semi-static downlink transmission is SPS PDSCH, CSI-RS, or DL ​​PRS, and the semi-static uplink transmission is PUCCH or CG-PUSCH for SR, then the UE receives SPS PDSCH, CSI-RS, or DL ​​PRS; or, if the semi-static downlink transmission is a PDCCH candidate in Type-3 PDCCH CSS or USS, and the semi-static uplink transmission is a PUCCH carrying CSI, a PUSCH carrying SP-CSI, or SRS, then the UE sends a PUCCH carrying CSI, a PUSCH carrying SP-CSI, or SRS.

[0366] Otherwise, if the network device is configured with priority, the UE will listen for or receive semi-static configuration downlink transmissions according to the network device's configuration; if the network device is not configured with priority, the UE will send semi-static configuration uplink transmissions according to the priority predefined by the protocol (first criterion).

[0367] For example, Table 6 provides examples of priorities when a collision occurs between different semi-static configuration downlink transmissions and semi-static configuration uplink transmissions determined according to the first, second, third, and fifth criteria. In this table, "H" indicates that the priority of the semi-static configuration downlink transmission corresponding to the row in the table is higher than the priority of the semi-static configuration uplink transmission corresponding to the column in the table, "L" indicates that the priority of the semi-static configuration downlink transmission corresponding to the row in the table is lower than the priority of the semi-static configuration uplink transmission corresponding to the column in the table, and "P" indicates that if the network device configures priorities, then the UE determines the priority according to the second criterion; otherwise, the UE determines the priority according to the first criterion.

[0368] Table 6: Six Examples of Priority Determination

[0369] The technical solution provided in this application addresses the issue of collisions between downlink and uplink transmissions on the terminal device side. For example, when a collision occurs between a semi-static downlink transmission and a semi-static uplink transmission on the terminal device, the terminal device can determine the priority of the transmission direction according to the priority criteria in this application. By selecting one of the uplink or downlink transmissions to execute, the terminal device can regulate its behavior, utilize some time-frequency resources, and reduce waste of those resources.

[0370] In the above method embodiments, the technical solution of this application has been described and explained from the perspective of the interaction between the terminal device and the network device. The steps performed by the terminal device described above can be implemented independently as a wireless communication method on the terminal device side, and the steps performed by the network device described above can be implemented independently as a wireless communication method on the network device side. Furthermore, the embodiments provided herein can be arbitrarily combined to form new embodiments, all of which are within the protection scope of this application.

[0371] The following are embodiments of the apparatus described in this application, which can be used to execute the embodiments of the method described in this application. For details not disclosed in the apparatus embodiments of this application, please refer to the embodiments of the method described in this application.

[0372] Please refer to Figure 10, which shows a block diagram of a wireless communication device according to an embodiment of this application. This device has the function of implementing the wireless communication method described above on the terminal device side. This function can be implemented in hardware or by hardware executing corresponding software. The device can be the terminal device described above, or it can be located within a terminal device. As shown in Figure 10, the device 1000 may include a processing module 1010 and a transceiver module 1020.

[0373] The processing module 1010 is used to determine the priority between the downlink transmission and the uplink transmission based on a priority criterion when a collision occurs between the downlink transmission and the uplink transmission.

[0374] The transceiver module 1020 is configured to listen to or receive the downlink transmission if the downlink transmission has a higher priority than the uplink transmission; or, the transceiver module 1020 is configured to send the uplink transmission if the downlink transmission has a lower priority than the uplink transmission.

[0375] In some embodiments, the priority criterion includes a predefined first criterion; the first criterion includes:

[0376] The downlink transmission has a higher priority than the uplink transmission; or,

[0377] The downlink transmission has a lower priority than the uplink transmission.

[0378] In some embodiments, the priority criteria include a second criterion for network device configuration; the second criterion includes:

[0379] The downlink transmission has a higher priority than the uplink transmission; or,

[0380] The downlink transmission has a lower priority than the uplink transmission; or,

[0381] Should the first criterion be changed?

[0382] In some embodiments, when the priority criterion includes a second criterion based on network device configuration, the terminal device determines the priority between the downlink transmission and the uplink transmission based on the second criterion based on network device configuration; otherwise, the terminal device determines the priority between the downlink transmission and the uplink transmission based on a predefined first criterion.

[0383] In some embodiments, the priority criterion further includes a third criterion; the third criterion includes at least one of the following:

[0384] In the event of a collision between a Type I downlink transmission and a Type II uplink transmission, the Type I downlink transmission has a higher priority than the Type II uplink transmission.

[0385] In the event of a collision between a Type II downlink transmission and a Type I uplink transmission, the Type II downlink transmission has a lower priority than the Type I uplink transmission.

[0386] In some embodiments, the priority criterion further includes a third criterion; the third criterion includes at least one of the following:

[0387] In the event of a collision between a Type I downlink transmission and a Type II uplink transmission, the Type I downlink transmission has a lower priority than the Type II uplink transmission.

[0388] In the event of a collision between a Type II downlink transmission and a Type I uplink transmission, the Type II downlink transmission takes precedence over the Type I uplink transmission.

[0389] In some embodiments, the priority criterion further includes a third criterion; the third criterion includes:

[0390] In the event of a collision between a Type I downlink transmission and a Type I uplink transmission, the priority between the Type I downlink transmission and the Type I uplink transmission is determined based on a first criterion or a second criterion.

[0391] In some embodiments, the priority criterion further includes a third criterion; the third criterion includes:

[0392] In the event of a collision between a Type II downlink transmission and a Type II uplink transmission, the priority between the Type II downlink transmission and the Type II uplink transmission is determined based on either the first or the second criterion; or...

[0393] In the event of a collision between a Type II downlink transmission and a Type II uplink transmission, the Type II downlink transmission has a lower priority than the Type II uplink transmission.

[0394] In some embodiments, the first type of downlink transmission includes at least one of the following: a semi-persistent scheduling (SPS) physical downlink shared channel (PDSCH), a channel state information reference signal (CSI-RS), and a downlink positioning reference signal (DL PRS); and / or,

[0395] The second type of downlink transmission includes at least one of the following: PDCCH candidates in the Type-0 / 0A / 0B / 1 / 2 / 2APDCCH common search space (CSS), PDCCH candidates in the Type-3 PDCCH CSS, and PDCCH candidates in the UE-specific search space (USS); and / or,

[0396] The first type of uplink transmission includes at least one of the following: an uplink channel carrying a Hybrid Automatic Repeat Request (HARQ-ACK) positive acknowledgment, a Physical Uplink Control Channel (PUCCH) carrying Channel State Information (CSI), a PUSCH carrying Semi-Persistent Channel State Information (SP-CSI), and a Sound Reference Signal (SRS); and / or,

[0397] The second type of uplink transmission includes at least one of the following: an uplink channel carrying SR, or a configuration licensed CG-PUSCH;

[0398] The uplink channel carrying HARQ-ACK is either a PUCCH carrying HARQ-ACK or a PUSCH carrying HARQ-ACK.

[0399] In some embodiments, where the priority criterion includes a third criterion, and the priority criterion includes a first criterion and / or a second criterion, the terminal device first determines the priority between the downlink transmission and the uplink transmission based on the third criterion.

[0400] In some embodiments, the priority criterion further includes a fourth criterion; the fourth criterion includes at least one of the following:

[0401] When the uplink transmission is an uplink channel carrying HARQ-ACK, the uplink channel carrying HARQ-ACK has a higher priority than the downlink transmission.

[0402] When the downlink transmission is a PDCCH candidate in Type-0 / 0A / 0B / 1 / 2 / 2APDCCH CSS, if the terminal device has a first listening requirement, the PDCCH candidate in Type-0 / 0A / 0B / 1 / 2 / 2APDCCH CSS has a higher priority than the uplink transmission except for the uplink channel carrying HARQ-ACK; otherwise, the PDCCH candidate in Type-0 / 0A / 0B / 1 / 2 / 2APDCCH CSS has a lower priority than the uplink transmission.

[0403] The first monitoring requirement is a monitoring requirement for the PDCCH candidate in Type-0 / 0A / 0B / 1 / 2 / 2APDCCH CSS, and the uplink channel carrying HARQ-ACK is either a PUCCH carrying HARQ-ACK or a PUSCH carrying HARQ-ACK.

[0404] In some embodiments, where the priority criterion includes a fourth criterion and the priority criterion includes at least one of a first criterion, a second criterion, and a third criterion, the terminal device first determines the priority between the downlink transmission and the uplink transmission based on the fourth criterion.

[0405] In some embodiments, the priority criteria further include a fifth criterion; the fifth criterion includes at least one of the following:

[0406] When the downlink transmission is a PDCCH candidate in Type-0 / 0A / 0B / 1 / 2 / 2APDCCH CSS, if the terminal device has a first listening requirement, the PDCCH candidate in Type-0 / 0A / 0B / 1 / 2 / 2APDCCH CSS has a higher priority than the uplink transmission; otherwise, the PDCCH candidate in Type-0 / 0A / 0B / 1 / 2 / 2APDCCH CSS has a lower priority than the uplink transmission.

[0407] When the uplink transmission is an uplink channel carrying HARQ-ACK and the downlink transmission is not a PDCCH candidate in Type-0 / 0A / 0B / 1 / 2 / 2APDCCH CSS, the uplink channel carrying HARQ-ACK has a higher priority than the downlink transmission.

[0408] The first monitoring requirement is a monitoring requirement for the PDCCH candidate in Type-0 / 0A / 0B / 1 / 2 / 2APDCCH CSS, and the uplink channel carrying HARQ-ACK is either a PUCCH carrying HARQ-ACK or a PUSCH carrying HARQ-ACK.

[0409] In some embodiments, where the priority criterion includes a fifth criterion and the priority criterion includes at least one of a first criterion, a second criterion, and a third criterion, the terminal device first determines the priority between the downlink transmission and the uplink transmission based on the fifth criterion.

[0410] In some embodiments, the first monitoring requirement includes at least one of the following:

[0411] After receiving the indication information indicating system message updates, listen for the PDCCH candidate requirements of the scheduling system messages;

[0412] After sending the Physical Random Access Channel (PRACH), listen for the PDCCH candidate requirements of the Scheduled Random Access Response (RAR).

[0413] The requirement to monitor and schedule PDCCH candidates for paging messages;

[0414] Listen for requests to PDCCH candidates that carry paging advance indication;

[0415] After the ephemeris information expires, listen for the PDCCH candidate of system message block SIB19 carrying ephemeris information;

[0416] Listen for and schedule the PDCCH candidate for small data transmission SDT;

[0417] The requirement for PDCCH candidates to listen to scheduling system messages during the initial access process.

[0418] In some embodiments, the downlink transmission is a semi-statically configured downlink transmission;

[0419] The downlink transmission includes at least one of the following: PDCCH candidate, SPS PDSCH, CSI-RS, DL PRS; wherein the PDCCH candidate includes PDCCH candidate in Type-0 PDCCH CSS, PDCCH candidate in Type-0A PDCCH CSS, PDCCH candidate in Type-0B PDCCH CSS, PDCCH candidate in Type-1 PDCCH CSS, PDCCH candidate in Type-2 PDCCH CSS, PDCCH candidate in Type-2A PDCCH CSS, PDCCH candidate in Type-3 PDCCH CSS, and PDCCH candidate in USS.

[0420] In some embodiments, the uplink transmission is a semi-statically configured uplink transmission;

[0421] The uplink transmission includes at least one of the following: SRS, PUCCH, and PUSCH; wherein the PUCCH includes at least one of the following: PUCCH carrying SR, PUCCH carrying HARQ-ACK, and PUCCH carrying CSI; and the PUSCH includes at least one of the following: CG-PUSCH, PUSCH carrying SP-CSI, and PUSCH carrying HARQ-ACK.

[0422] In some embodiments, the collision between the downlink transmission and the uplink transmission includes at least one of the following:

[0423] After considering the timing advance (TA) of the terminal device, the time domain resources corresponding to the downlink transmission and the time domain resources corresponding to the uplink transmission overlap in the time domain.

[0424] After considering the TA of the terminal device, the time interval between the end position of the time domain resource corresponding to the downlink transmission and the start position of the time domain resource corresponding to the uplink transmission is less than the first duration.

[0425] After considering the TA of the terminal device, the time interval between the end position of the time domain resource corresponding to the uplink transmission and the start position of the time domain resource corresponding to the downlink transmission is less than the second duration.

[0426] In some embodiments, the first duration is the duration during which the terminal device switches from downlink reception to uplink transmission; and / or,

[0427] The second duration is the duration during which the terminal device switches from uplink transmission to downlink reception.

[0428] In some embodiments, the terminal device is a half-duplex HD compact RedCap terminal device in a non-terrestrial network (NTN).

[0429] The technical solution provided in this application, when downlink and uplink transmissions collide, allows the terminal device to determine whether to listen to or receive uplink transmissions or send downlink transmissions based on the priority of downlink and uplink transmissions. Instead of directly treating this situation as an error, it offers a solution for downlink and uplink transmission collisions, allowing the terminal device to choose one of the uplink or downlink transmissions to execute. This standardizes the behavior of the terminal device and utilizes the available time-frequency resources, reducing their waste.

[0430] Please refer to Figure 11, which shows a block diagram of a wireless communication device according to another embodiment of this application. This device has the function of implementing the wireless communication method on the network device side described above. This function can be implemented in hardware or by hardware executing corresponding software. The device can be the network device described above, or it can be disposed within a network device. As shown in Figure 11, the device 1100 may include a transceiver module 1110 or a processing module 1120.

[0431] The transceiver module 1110 is used to send the downlink transmission and listen to or receive the uplink transmission when a collision occurs between the downlink transmission and the uplink transmission.

[0432] The processing module 1120 is configured to determine the priority between the downlink transmission and the uplink transmission based on a priority criterion; if the priority of the downlink transmission is higher than that of the uplink transmission, the downlink transmission is sent; or, if the priority of the downlink transmission is lower than that of the uplink transmission, the uplink transmission is monitored or received.

[0433] In some embodiments, the priority criterion includes a predefined first criterion; the first criterion includes:

[0434] The downlink transmission has a higher priority than the uplink transmission; or,

[0435] The downlink transmission has a lower priority than the uplink transmission.

[0436] In some embodiments, the priority criteria include a second criterion for network device configuration; the second criterion includes:

[0437] The downlink transmission has a higher priority than the uplink transmission; or,

[0438] The downlink transmission has a lower priority than the uplink transmission; or,

[0439] Should the first criterion be changed?

[0440] In some embodiments, when the priority criterion includes a second criterion based on network device configuration, the terminal device determines the priority between the downlink transmission and the uplink transmission based on the second criterion based on network device configuration; otherwise, the terminal device determines the priority between the downlink transmission and the uplink transmission based on a predefined first criterion.

[0441] In some embodiments, the priority criterion further includes a third criterion; the third criterion includes at least one of the following:

[0442] In the event of a collision between a Type I downlink transmission and a Type II uplink transmission, the Type I downlink transmission has a higher priority than the Type II uplink transmission.

[0443] In the event of a collision between a Type II downlink transmission and a Type I uplink transmission, the Type II downlink transmission has a lower priority than the Type I uplink transmission.

[0444] In some embodiments, the priority criterion further includes a third criterion; the third criterion includes at least one of the following:

[0445] In the event of a collision between a Type I downlink transmission and a Type II uplink transmission, the Type I downlink transmission has a lower priority than the Type II uplink transmission.

[0446] In the event of a collision between a Type II downlink transmission and a Type I uplink transmission, the Type II downlink transmission takes precedence over the Type I uplink transmission.

[0447] In some embodiments, the priority criterion further includes a third criterion; the third criterion includes:

[0448] In the event of a collision between a Type I downlink transmission and a Type I uplink transmission, the priority between the Type I downlink transmission and the Type I uplink transmission is determined based on a first criterion or a second criterion.

[0449] In some embodiments, the priority criterion further includes a third criterion; the third criterion includes:

[0450] In the event of a collision between a Type II downlink transmission and a Type II uplink transmission, the priority between the Type II downlink transmission and the Type II uplink transmission is determined based on either the first or the second criterion; or...

[0451] In the event of a collision between a Type II downlink transmission and a Type II uplink transmission, the Type II downlink transmission has a lower priority than the Type II uplink transmission.

[0452] In some embodiments, the first type of downlink transmission includes at least one of the following: a semi-persistent scheduling (SPS) physical downlink shared channel (PDSCH), a channel state information reference signal (CSI-RS), and a downlink positioning reference signal (DL PRS); and / or,

[0453] The second type of downlink transmission includes at least one of the following: PDCCH candidates in the Type-0 / 0A / 0B / 1 / 2 / 2APDCCH common search space (CSS), PDCCH candidates in the Type-3 PDCCH CSS, and PDCCH candidates in the UE-specific search space (USS); and / or,

[0454] The first type of uplink transmission includes at least one of the following: an uplink channel carrying a Hybrid Automatic Repeat Request (HARQ-ACK) positive acknowledgment, a Physical Uplink Control Channel (PUCCH) carrying Channel State Information (CSI), a PUSCH carrying Semi-Persistent Channel State Information (SP-CSI), and a Sound Reference Signal (SRS); and / or,

[0455] The second type of uplink transmission includes at least one of the following: an uplink channel carrying SR, or a configuration licensed CG-PUSCH;

[0456] The uplink channel carrying HARQ-ACK is either a PUCCH carrying HARQ-ACK or a PUSCH carrying HARQ-ACK.

[0457] In some embodiments, where the priority criterion includes a third criterion, and the priority criterion includes a first criterion and / or a second criterion, the terminal device first determines the priority between the downlink transmission and the uplink transmission based on the third criterion.

[0458] In some embodiments, the priority criterion further includes a fourth criterion; the fourth criterion includes at least one of the following:

[0459] When the uplink transmission is an uplink channel carrying HARQ-ACK, the uplink channel carrying HARQ-ACK has a higher priority than the downlink transmission.

[0460] When the downlink transmission is a PDCCH candidate in Type-0 / 0A / 0B / 1 / 2 / 2APDCCH CSS, if the terminal device has a first listening requirement, the PDCCH candidate in Type-0 / 0A / 0B / 1 / 2 / 2APDCCH CSS has a higher priority than the uplink transmission except for the uplink channel carrying HARQ-ACK; otherwise, the PDCCH candidate in Type-0 / 0A / 0B / 1 / 2 / 2APDCCH CSS has a lower priority than the uplink transmission.

[0461] The first monitoring requirement is a monitoring requirement for the PDCCH candidate in Type-0 / 0A / 0B / 1 / 2 / 2APDCCH CSS, and the uplink channel carrying HARQ-ACK is either a PUCCH carrying HARQ-ACK or a PUSCH carrying HARQ-ACK.

[0462] In some embodiments, where the priority criterion includes a fourth criterion and the priority criterion includes at least one of a first criterion, a second criterion, and a third criterion, the terminal device first determines the priority between the downlink transmission and the uplink transmission based on the fourth criterion.

[0463] In some embodiments, the priority criteria further include a fifth criterion; the fifth criterion includes at least one of the following:

[0464] When the downlink transmission is a PDCCH candidate in Type-0 / 0A / 0B / 1 / 2 / 2APDCCH CSS, if the terminal device has a first listening requirement, the PDCCH candidate in Type-0 / 0A / 0B / 1 / 2 / 2APDCCH CSS has a higher priority than the uplink transmission; otherwise, the PDCCH candidate in Type-0 / 0A / 0B / 1 / 2 / 2APDCCH CSS has a lower priority than the uplink transmission.

[0465] When the uplink transmission is an uplink channel carrying HARQ-ACK and the downlink transmission is not a PDCCH candidate in Type-0 / 0A / 0B / 1 / 2 / 2APDCCH CSS, the uplink channel carrying HARQ-ACK has a higher priority than the downlink transmission.

[0466] The first monitoring requirement is a monitoring requirement for the PDCCH candidate in Type-0 / 0A / 0B / 1 / 2 / 2APDCCH CSS, and the uplink channel carrying HARQ-ACK is either a PUCCH carrying HARQ-ACK or a PUSCH carrying HARQ-ACK.

[0467] In some embodiments, where the priority criterion includes a fifth criterion and the priority criterion includes at least one of a first criterion, a second criterion, and a third criterion, the terminal device first determines the priority between the downlink transmission and the uplink transmission based on the fifth criterion.

[0468] In some embodiments, the first monitoring requirement includes at least one of the following:

[0469] After receiving the indication information indicating system message updates, listen for the PDCCH candidate requirements of the scheduling system messages;

[0470] After sending the Physical Random Access Channel (PRACH), listen for the PDCCH candidate requirements of the Scheduled Random Access Response (RAR).

[0471] The requirement to monitor and schedule PDCCH candidates for paging messages;

[0472] Listen for requests to PDCCH candidates that carry paging advance indication;

[0473] After the ephemeris information expires, listen for the PDCCH candidate of system message block SIB19 carrying ephemeris information;

[0474] Listen for and schedule the PDCCH candidate for small data transmission SDT;

[0475] The requirement for PDCCH candidates to listen to scheduling system messages during the initial access process.

[0476] In some embodiments, the downlink transmission is a semi-statically configured downlink transmission;

[0477] The downlink transmission includes at least one of the following: PDCCH candidate, SPS PDSCH, CSI-RS, DL PRS; wherein the PDCCH candidate includes PDCCH candidate in Type-0 PDCCH CSS, PDCCH candidate in Type-0A PDCCH CSS, PDCCH candidate in Type-0B PDCCH CSS, PDCCH candidate in Type-1 PDCCH CSS, PDCCH candidate in Type-2 PDCCH CSS, PDCCH candidate in Type-2A PDCCH CSS, PDCCH candidate in Type-3 PDCCH CSS, and PDCCH candidate in USS.

[0478] In some embodiments, the uplink transmission is a semi-statically configured uplink transmission;

[0479] The uplink transmission includes at least one of the following: SRS, PUCCH, and PUSCH; wherein the PUCCH includes at least one of the following: PUCCH carrying SR, PUCCH carrying HARQ-ACK, and PUCCH carrying CSI; and the PUSCH includes at least one of the following: CG-PUSCH, PUSCH carrying SP-CSI, and PUSCH carrying HARQ-ACK.

[0480] In some embodiments, the collision between the downlink transmission and the uplink transmission includes at least one of the following:

[0481] After considering the timing advance (TA) of the terminal device, the time domain resources corresponding to the downlink transmission and the time domain resources corresponding to the uplink transmission overlap in the time domain.

[0482] After considering the TA of the terminal device, the time interval between the end position of the time domain resource corresponding to the downlink transmission and the start position of the time domain resource corresponding to the uplink transmission is less than the first duration.

[0483] After considering the TA of the terminal device, the time interval between the end position of the time domain resource corresponding to the uplink transmission and the start position of the time domain resource corresponding to the downlink transmission is less than the second duration.

[0484] In some embodiments, the first duration is the duration during which the terminal device switches from downlink reception to uplink transmission; and / or,

[0485] The second duration is the duration during which the terminal device switches from uplink transmission to downlink reception.

[0486] In some embodiments, the terminal device is a half-duplex HD compact RedCap terminal device in a non-terrestrial network (NTN).

[0487] The technical solution provided in this application, when downlink and uplink transmissions collide, allows network devices to determine whether to listen to or receive uplink transmissions or send downlink transmissions based on the priority of uplink and downlink transmissions. Instead of directly treating this situation as an error, it offers a solution for downlink and uplink transmission collisions, allowing for selective execution of either uplink or downlink transmissions, thus utilizing the available time-frequency resources and reducing their waste.

[0488] It should be noted that the above embodiments only illustrate the division of the above functional modules when implementing the device. In actual applications, the above functions can be assigned to different functional modules according to actual needs, that is, the content structure of the device can be divided into different functional modules to complete all or part of the functions described above.

[0489] Regarding the apparatus in the above embodiments, the specific manner in which each module performs its operation has been described in detail in the embodiments related to the method, and will not be elaborated upon here. For details not described in detail in the apparatus embodiments, please refer to the above method embodiments.

[0490] Please refer to Figure 12, which shows a schematic diagram of a communication device provided in one embodiment of this application. The communication device 1200 may include a processor 1201, a transceiver 1202, and a memory 1203. The transceiver 1202 is used to implement sending or receiving functions, such as the functions of the transceiver modules 1020 and 1110 described above. The processor 1201 can be used to implement other processing functions or control sending and / or receiving, such as the functions of the processing module 1010 or the processing module 1120 described above. The communication device 1200 can be implemented as either the terminal device or the network device described above.

[0491] The processor 1201 includes one or more processing cores. The processor 1201 executes various functional applications and information processing by running software programs and modules.

[0492] The transceiver 1202 may include a receiver and a transmitter. For example, the receiver and transmitter may be implemented as the same wireless communication component, which may include a wireless communication chip and a radio frequency antenna.

[0493] The memory 1203 can be connected to the processor 1201 and the transceiver 1202.

[0494] The memory 1203 can be used to store a computer program executed by the processor, and the processor 1201 is used to execute the computer program to implement the various steps in the above method embodiments.

[0495] In some embodiments, when the communication device is a terminal device, the processor 1201 is configured to determine the priority between the downlink transmission and the uplink transmission based on a priority criterion when a collision occurs between the downlink transmission and the uplink transmission; the transceiver 1202 is configured to listen to or receive the downlink transmission if the priority of the downlink transmission is higher than that of the uplink transmission; or, if the priority of the downlink transmission is lower than that of the uplink transmission, send the uplink transmission.

[0496] In some embodiments, when the communication device is a network device, the transceiver 1202 is configured to send the downlink transmission and listen to or receive the uplink transmission in the event of a collision between the downlink transmission and the uplink transmission; or, the processor 1201 is configured to determine the priority between the downlink transmission and the uplink transmission based on a priority criterion; if the priority of the downlink transmission is higher than that of the uplink transmission, the downlink transmission is sent; or if the priority of the downlink transmission is lower than that of the uplink transmission, the uplink transmission is listened to or received.

[0497] For details not described in this embodiment, please refer to the embodiments above, which will not be repeated here.

[0498] Furthermore, the memory can be implemented by any type of volatile or non-volatile storage device or a combination thereof, including but not limited to: magnetic disks or optical disks, electrically erasable programmable read-only memory, erasable programmable read-only memory, statically accessible memory, read-only memory, magnetic memory, flash memory, and programmable read-only memory.

[0499] For details not described in this embodiment, please refer to the embodiments above, which will not be repeated here.

[0500] This application also provides a computer-readable storage medium storing a computer program, which is executed by a processor to implement the aforementioned wireless communication method on the terminal device side or the aforementioned wireless communication method on the network device side. In some embodiments, the computer-readable storage medium may include: ROM (Read-Only Memory), RAM (Random-Access Memory), SSD (Solid State Drives), or optical disc, etc. The random access memory may include ReRAM (Resistance Random Access Memory) and DRAM (Dynamic Random Access Memory).

[0501] This application also provides a chip, which includes programmable logic circuits and / or program instructions. When the chip is running, it is used to implement the wireless communication method on the terminal device side or the wireless communication method on the network device side.

[0502] This application also provides a computer program product, which includes computer instructions stored in a computer-readable storage medium. A processor reads and executes the computer instructions from the computer-readable storage medium to implement the wireless communication method on the terminal device side or the wireless communication method on the network device side.

[0503] It should be understood that the term "instruction" mentioned in the embodiments of this application can be a direct instruction, an indirect instruction, or an indication of a relationship. For example, A instructing B can mean that A directly instructs B, such as B being able to obtain information through A; it can also mean that A indirectly instructs B, such as A instructing C, so B can obtain information through C; or it can mean that there is a relationship between A and B.

[0504] In the description of the embodiments of this application, the term "correspondence" may indicate that there is a direct or indirect correspondence between two things, or that there is an association between two things, or that there is a relationship of instruction and being instructed, configuration and being configured, etc.

[0505] In some embodiments of this application, "predefined" can be achieved by pre-storing corresponding codes, tables, or other means that can be used to indicate relevant information in the device (e.g., including terminal devices and network devices). This application does not limit the specific implementation method. For example, predefined can refer to what is defined in the protocol.

[0506] In some embodiments of this application, the term "protocol" may refer to standard protocols in the field of communications, such as LTE protocols, NR protocols, and related protocols applied in future communication systems. This application does not limit the scope of these protocols.

[0507] In this article, "multiple" refers to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. The character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0508] In this article, "greater than or equal to" can mean greater than or equal to, and "less than or equal to" can mean less than or equal to.

[0509] Furthermore, the step numbers described herein are merely illustrative of one possible execution order between steps. In some other embodiments, the steps may not be executed in the order of their numbers, such as two steps with different numbers being executed simultaneously, or two steps with different numbers being executed in the reverse order of the illustration. This application does not limit this.

[0510] Those skilled in the art will recognize that the functions described in the embodiments of this application in one or more of the above examples can be implemented using hardware, software, firmware, or any combination thereof. When implemented using software, these functions can be stored in a computer-readable medium or transmitted as one or more instructions or code on a computer-readable medium. Computer-readable media include computer storage media and communication media, wherein communication media include any medium that facilitates the transfer of a computer program from one place to another. Storage media can be any available medium that can be accessed by a general-purpose or special-purpose computer.

[0511] The above description is merely an exemplary embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A method of wireless communication, the method comprising: The method is executed by a terminal device, and the method includes: In the event of a collision between downlink and uplink transmissions, the priority between the downlink and uplink transmissions is determined based on a priority criterion. If the downlink transmission has a higher priority than the uplink transmission, listen for or receive the downlink transmission; or, If the downlink transmission has a lower priority than the uplink transmission, then the uplink transmission is sent.

2. The method of claim 1, wherein, The priority criteria include a predefined first criterion; the first criterion includes: The downlink transmission has a higher priority than the uplink transmission; or, The downlink transmission has a lower priority than the uplink transmission.

3. The method according to claim 1 or 2, characterized in that, The priority criteria include a second criterion for network device configuration; the second criterion includes: The downlink transmission has a higher priority than the uplink transmission; or, The downlink transmission has a lower priority than the uplink transmission; or, Should the first criterion be changed? 4. The method of claim 3, wherein, When the priority criteria include a second criterion for network device configuration, the terminal device determines the priority between the downlink transmission and the uplink transmission based on the second criterion for network device configuration; Otherwise, the terminal device determines the priority between the downlink transmission and the uplink transmission based on a predefined first criterion.

5. The method according to any one of claims 2 to 4, characterized in that, The priority criteria also include a third criterion; the third criterion includes at least one of the following: In the event of a collision between a Type I downlink transmission and a Type II uplink transmission, the Type I downlink transmission has a higher priority than the Type II uplink transmission. In the event of a collision between a Type II downlink transmission and a Type I uplink transmission, the Type II downlink transmission has a lower priority than the Type I uplink transmission.

6. The method according to any one of claims 2 to 4, characterized in that, The priority criteria also include a third criterion; the third criterion includes at least one of the following: In the event of a collision between a Type I downlink transmission and a Type II uplink transmission, the Type I downlink transmission has a lower priority than the Type II uplink transmission. In the event of a collision between a Type II downlink transmission and a Type I uplink transmission, the Type II downlink transmission takes precedence over the Type I uplink transmission.

7. The method according to any one of claims 2 to 6, characterized in that, The priority criteria also include a third criterion; the third criterion includes: In the event of a collision between a Type I downlink transmission and a Type I uplink transmission, the priority between the Type I downlink transmission and the Type I uplink transmission is determined based on a first criterion or a second criterion.

8. The method according to any one of claims 2 to 6, characterized in that, The priority criteria also include a third criterion; the third criterion includes: In the event of a collision between a Type II downlink transmission and a Type II uplink transmission, the priority between the Type II downlink transmission and the Type II uplink transmission is determined based on either the first or the second criterion; or... In the event of a collision between a Type II downlink transmission and a Type II uplink transmission, the Type II downlink transmission has a lower priority than the Type II uplink transmission.

9. The method according to any one of claims 5 to 8, characterized in that, The first type of downlink transmission includes at least one of the following: Semi-Persistent Scheduling (SPS) Physical Downlink Shared Channel (PDSCH), Channel State Information Reference Signal (CSI-RS), Downlink Positioning Reference Signal (DL PRS); and / or, The second type of downlink transmission includes at least one of the following: PDCCH candidates in the Type-0 / 0A / 0B / 1 / 2 / 2APDCCH common search space (CSS), PDCCH candidates in the Type-3 PDCCH CSS, and PDCCH candidates in the UE-specific search space (USS). And / or, The first type of uplink transmission includes at least one of the following: an uplink channel carrying a Hybrid Automatic Repeat Request (HARQ-ACK) positive acknowledgment, a Physical Uplink Control Channel (PUCCH) carrying Channel State Information (CSI), a PUSCH carrying Semi-Persistent Channel State Information (SP-CSI), and a Sound Reference Signal (SRS); and / or, The second type of uplink transmission includes at least one of the following: an uplink channel carrying SR, or a configuration licensed CG-PUSCH; The uplink channel carrying HARQ-ACK is either a PUCCH carrying HARQ-ACK or a PUCCH carrying HARQ-ACK. PUSCH.

10. The method according to any one of claims 5 to 9, characterized in that, If the priority criterion includes a third criterion, and the priority criterion includes a first criterion and / or a second criterion, the terminal device first determines the priority between the downlink transmission and the uplink transmission based on the third criterion.

11. The method according to any one of claims 2 to 10, characterized in that, The priority criteria also include a fourth criterion; the fourth criterion includes at least one of the following: When the uplink transmission is an uplink channel carrying HARQ-ACK, the uplink channel carrying HARQ-ACK has a higher priority than the downlink transmission. When the downlink transmission is a PDCCH candidate in Type-0 / 0A / 0B / 1 / 2 / 2APDCCH CSS, if the terminal device has a first listening requirement, the PDCCH candidate in Type-0 / 0A / 0B / 1 / 2 / 2APDCCH CSS has a higher priority than the uplink transmission except for the uplink channel carrying HARQ-ACK; otherwise, the PDCCH candidate in Type-0 / 0A / 0B / 1 / 2 / 2APDCCH CSS has a lower priority than the uplink transmission. The first monitoring requirement is a monitoring requirement for the PDCCH candidate in Type-0 / 0A / 0B / 1 / 2 / 2APDCCH CSS, and the uplink channel carrying HARQ-ACK is either a PUCCH carrying HARQ-ACK or a PUSCH carrying HARQ-ACK.

12. The method according to claim 11, characterized in that, When the priority criterion includes a fourth criterion, and the priority criterion includes at least one of a first criterion, a second criterion, and a third criterion, the terminal device first determines the priority between the downlink transmission and the uplink transmission based on the fourth criterion.

13. The method according to any one of claims 2 to 10, characterized in that, The priority criteria also include a fifth criterion; the fifth criterion includes at least one of the following: When the downlink transmission is a PDCCH candidate in Type-0 / 0A / 0B / 1 / 2 / 2APDCCH CSS, if the terminal device has a first listening requirement, the PDCCH candidate in Type-0 / 0A / 0B / 1 / 2 / 2APDCCH CSS has a higher priority than the uplink transmission. Otherwise, the PDCCH candidate in the Type-0 / 0A / 0B / 1 / 2 / 2APDCCH CSS has a lower priority than the uplink transmission; When the uplink transmission is an uplink channel carrying HARQ-ACK and the downlink transmission is not a PDCCH candidate in Type-0 / 0A / 0B / 1 / 2 / 2APDCCH CSS, the uplink channel carrying HARQ-ACK has a higher priority than the downlink transmission. The first monitoring requirement is a monitoring requirement for the PDCCH candidate in Type-0 / 0A / 0B / 1 / 2 / 2APDCCH CSS, and the uplink channel carrying HARQ-ACK is either a PUCCH carrying HARQ-ACK or a PUSCH carrying HARQ-ACK.

14. The method according to claim 13, characterized in that, When the priority criterion includes a fifth criterion, and the priority criterion includes at least one of a first criterion, a second criterion, and a third criterion, the terminal device first determines the priority between the downlink transmission and the uplink transmission based on the fifth criterion.

15. The method according to any one of claims 11 to 14, characterized in that, The first monitoring requirement includes at least one of the following: After receiving the indication information indicating system message updates, listen for the PDCCH candidate requirements of the scheduling system messages; After sending the Physical Random Access Channel (PRACH), listen for the PDCCH candidate requirements of the Scheduled Random Access Response (RAR). The requirement to monitor and schedule PDCCH candidates for paging messages; Listen for requests to PDCCH candidates that carry paging advance indication; After the ephemeris information expires, listen for the PDCCH candidate of system message block SIB19 carrying ephemeris information; Listen for and schedule the PDCCH candidate for small data transmission SDT; The requirement for PDCCH candidates to listen to scheduling system messages during the initial access process.

16. The method according to any one of claims 1 to 15, characterized in that, The downlink transmission is a semi-statically configured downlink transmission; The downlink transmission includes at least one of the following: PDCCH candidate, SPS PDSCH, CSI-RS, DL PRS; wherein the PDCCH candidate includes PDCCH candidate in Type-0 PDCCH CSS, PDCCH candidate in Type-0A PDCCH CSS, PDCCH candidate in Type-0B PDCCH CSS, PDCCH candidate in Type-1 PDCCH CSS, PDCCH candidate in Type-2 PDCCH CSS, PDCCH candidate in Type-2A PDCCH CSS, PDCCH candidate in Type-3 PDCCH CSS, and PDCCH candidate in USS.

17. The method according to any one of claims 1 to 16, characterized in that, The uplink transmission is a semi-statically configured uplink transmission; The uplink transmission includes at least one of the following: SRS, PUCCH, and PUSCH; wherein the PUCCH includes at least one of the following: PUCCH carrying SR, PUCCH carrying HARQ-ACK, and PUCCH carrying CSI; and the PUSCH includes at least one of the following: CG-PUSCH, PUSCH carrying SP-CSI, and PUSCH carrying HARQ-ACK.

18. The method according to any one of claims 1 to 17, characterized in that, The collision between the downlink and uplink transmissions includes at least one of the following: After considering the timing advance (TA) of the terminal device, the time domain resources corresponding to the downlink transmission and the time domain resources corresponding to the uplink transmission overlap in the time domain. After considering the TA of the terminal device, the end position of the time domain resources corresponding to the downlink transmission and the time domain resources corresponding to the uplink transmission are... The time interval between the starting positions of the resources is less than the first duration; After considering the TA of the terminal device, the time interval between the end position of the time domain resource corresponding to the uplink transmission and the start position of the time domain resource corresponding to the downlink transmission is less than the second duration.

19. The method according to claim 18, characterized in that, The first duration is the duration during which the terminal device switches from downlink reception to uplink transmission; and / or, The second duration is the duration during which the terminal device switches from uplink transmission to downlink reception.

20. The method according to any one of claims 1 to 19, characterized in that, The terminal device is a half-duplex HD compact RedCap terminal device in a non-terrestrial network (NTN).

21. A wireless communication method, characterized in that, The method is performed by a network device, and the method includes: In the event of a collision between downlink and uplink transmissions, the downlink transmission is sent while the uplink transmission is monitored or received; or... The priority between the downlink transmission and the uplink transmission is determined based on a priority criterion; if the priority of the downlink transmission is higher than that of the uplink transmission, the downlink transmission is sent; or, if the priority of the downlink transmission is lower than that of the uplink transmission, the uplink transmission is listened to or received.

22. The method according to claim 21, characterized in that, The priority criteria include a predefined first criterion; the first criterion includes: The downlink transmission has a higher priority than the uplink transmission; or, The downlink transmission has a lower priority than the uplink transmission.

23. The method according to claim 21 or 22, characterized in that, The priority criteria include a second criterion for network device configuration; the second criterion includes: The downlink transmission has a higher priority than the uplink transmission; or, The downlink transmission has a lower priority than the uplink transmission; or, Should the first criterion be changed? 24. The method according to claim 23, characterized in that, When the priority criteria include a second criterion based on network device configuration, the network device determines the priority between the downlink transmission and the uplink transmission based on the second criterion based on network device configuration. Otherwise, the network device determines the priority between the downlink transmission and the uplink transmission based on a predefined first criterion.

25. The method according to any one of claims 22 to 24, characterized in that, The priority criteria also include a third criterion; the third criterion includes at least one of the following: In the event of a collision between a Type I downlink transmission and a Type II uplink transmission, the Type I downlink transmission has a higher priority than the Type II uplink transmission. In the event of a collision between a Type II downlink transmission and a Type I uplink transmission, the Type II downlink transmission has a lower priority than the Type I uplink transmission.

26. The method according to any one of claims 22 to 24, characterized in that, The priority criteria also include a third criterion; the third criterion includes at least one of the following: In the event of a collision between a Type I downlink transmission and a Type II uplink transmission, the Type I downlink transmission has a lower priority than the Type II uplink transmission. In the event of a collision between a Type II downlink transmission and a Type I uplink transmission, the Type II downlink transmission takes precedence over the Type I uplink transmission.

27. The method according to any one of claims 22 to 26, characterized in that, The priority criteria also include a third criterion; the third criterion includes: In the event of a collision between a Type I downlink transmission and a Type I uplink transmission, the priority between the Type I downlink transmission and the Type I uplink transmission is determined based on a first criterion or a second criterion.

28. The method according to any one of claims 22 to 26, characterized in that, The priority criteria also include a third criterion; the third criterion includes: In the event of a collision between a Type II downlink transmission and a Type II uplink transmission, the priority between the Type II downlink transmission and the Type II uplink transmission is determined based on either the first or the second criterion; or... In the event of a collision between a Type II downlink transmission and a Type II uplink transmission, the Type II downlink transmission has a lower priority than the Type II uplink transmission.

29. The method according to any one of claims 25 to 28, characterized in that, The first type of downlink transmission includes at least one of the following: Semi-Persistent Scheduling (SPS) Physical Downlink Shared Channel (PDSCH), Channel State Information Reference Signal (CSI-RS), Downlink Positioning Reference Signal (DL PRS); and / or, The second type of downlink transmission includes at least one of the following: Type 0 or 0A or 0B or 1 or 2 or 2A downlink control channel Type- PDCCH candidates in the 0 / 0A / 0B / 1 / 2 / 2APDCCH public search space CSS, PDCCH candidates in the Type-3 PDCCH CSS, and PDCCH candidates in the UE-specific search space USS; And / or, The first type of uplink transmission includes at least one of the following: an uplink channel carrying a Hybrid Automatic Repeat Request (HARQ-ACK) positive acknowledgment, a Physical Uplink Control Channel (PUCCH) carrying Channel State Information (CSI), a PUSCH carrying Semi-Persistent Channel State Information (SP-CSI), and a Sound Reference Signal (SRS); and / or, The second type of uplink transmission includes at least one of the following: an uplink channel carrying SR, or a configuration licensed CG-PUSCH; The uplink channel carrying HARQ-ACK is either a PUCCH carrying HARQ-ACK or a PUSCH carrying HARQ-ACK.

30. The method according to any one of claims 25 to 29, characterized in that, If the priority criterion includes a third criterion, and the priority criterion includes a first criterion and / or a second criterion, the network device first determines the priority between the downlink transmission and the uplink transmission based on the third criterion.

31. The method according to any one of claims 22 to 30, characterized in that, The priority criteria also include a fourth criterion; the fourth criterion includes at least one of the following: When the uplink transmission is an uplink channel carrying HARQ-ACK, the uplink channel carrying HARQ-ACK has a higher priority than the downlink transmission. When the downlink transmission is a PDCCH candidate in Type-0 / 0A / 0B / 1 / 2 / 2APDCCH CSS, if the terminal device has a first listening requirement, the PDCCH candidate in Type-0 / 0A / 0B / 1 / 2 / 2APDCCH CSS has a higher priority than the uplink transmission except for the uplink channel carrying HARQ-ACK; otherwise, the PDCCH candidate in Type-0 / 0A / 0B / 1 / 2 / 2APDCCH CSS has a lower priority than the uplink transmission. The first monitoring requirement is a monitoring requirement for the PDCCH candidate in Type-0 / 0A / 0B / 1 / 2 / 2APDCCH CSS, and the uplink channel carrying HARQ-ACK is either a PUCCH carrying HARQ-ACK or a PUSCH carrying HARQ-ACK.

32. The method according to claim 31, characterized in that, When the priority criterion includes a fourth criterion, and the priority criterion includes at least one of a first criterion, a second criterion, and a third criterion, the network device first determines the priority between the downlink transmission and the uplink transmission based on the fourth criterion.

33. The method according to any one of claims 22 to 30, characterized in that, The priority criteria also include a fifth criterion; the fifth criterion includes at least one of the following: When the downlink transmission is a PDCCH candidate in Type-0 / 0A / 0B / 1 / 2 / 2APDCCH CSS, if the terminal device has a first listening requirement, the PDCCH candidate in Type-0 / 0A / 0B / 1 / 2 / 2APDCCH CSS has a higher priority than the uplink transmission. Otherwise, the PDCCH candidate in the Type-0 / 0A / 0B / 1 / 2 / 2APDCCH CSS has a lower priority than the uplink transmission; When the uplink transmission is an uplink channel carrying HARQ-ACK and the downlink transmission is not a PDCCH candidate in Type-0 / 0A / 0B / 1 / 2 / 2APDCCH CSS, the uplink channel carrying HARQ-ACK has a higher priority than the downlink transmission. The first monitoring requirement is a monitoring requirement for the PDCCH candidate in Type-0 / 0A / 0B / 1 / 2 / 2APDCCH CSS, and the uplink channel carrying HARQ-ACK is either a PUCCH carrying HARQ-ACK or a PUSCH carrying HARQ-ACK.

34. The method according to claim 33, characterized in that, When the priority criterion includes a fifth criterion, and the priority criterion includes at least one of a first criterion, a second criterion, and a third criterion, the network device first determines the priority between the downlink transmission and the uplink transmission based on the fifth criterion.

35. The method according to any one of claims 31 to 34, characterized in that, The first monitoring requirement includes at least one of the following: After receiving the indication information indicating system message updates, listen for the PDCCH candidate requirements of the scheduling system messages; After sending the Physical Random Access Channel (PRACH), listen for the PDCCH candidate requirements of the Scheduled Random Access Response (RAR). The requirement to monitor and schedule PDCCH candidates for paging messages; Listen for requests to PDCCH candidates that carry paging advance indication; After the ephemeris information expires, listen for the PDCCH candidate of system message block SIB19 carrying ephemeris information; Listen for and schedule the PDCCH candidate for small data transmission SDT; The requirement for PDCCH candidates to listen to scheduling system messages during the initial access process.

36. The method according to any one of claims 21 to 35, characterized in that, The downlink transmission is a semi-statically configured downlink transmission; The downlink transmission includes at least one of the following: PDCCH candidate, SPS PDSCH, CSI-RS, DL PRS; wherein the PDCCH candidate includes PDCCH candidate in Type-0 PDCCH CSS, PDCCH candidate in Type-0A PDCCH CSS, PDCCH candidate in Type-0B PDCCH CSS, PDCCH candidate in Type-1 PDCCH CSS, PDCCH candidate in Type-2 PDCCH CSS, PDCCH candidate in Type-2A PDCCH CSS, PDCCH candidate in Type-3 PDCCH CSS, and PDCCH candidate in USS.

37. The method according to any one of claims 21 to 36, characterized in that, The uplink transmission is a semi-statically configured uplink transmission; The uplink transmission includes at least one of the following: SRS, PUCCH, and PUSCH; wherein the PUCCH includes at least one of the following: PUCCH carrying SR, PUCCH carrying HARQ-ACK, and PUCCH carrying CSI; and the PUSCH includes at least one of the following: CG-PUSCH, PUSCH carrying SP-CSI, and PUSCH carrying HARQ-ACK.

38. The method according to any one of claims 21 to 37, characterized in that, The collision between the downlink and uplink transmissions includes at least one of the following: After considering the timing advance (TA) of the terminal device, the time domain resources corresponding to the downlink transmission and the time domain resources corresponding to the uplink transmission overlap in the time domain. After considering the TA of the terminal device, the time interval between the end position of the time domain resource corresponding to the downlink transmission and the start position of the time domain resource corresponding to the uplink transmission is less than the first duration. After considering the TA of the terminal device, the time interval between the end position of the time domain resource corresponding to the uplink transmission and the start position of the time domain resource corresponding to the downlink transmission is less than the second duration.

39. The method according to claim 38, characterized in that, The first duration is the duration during which the terminal device switches from downlink reception to uplink transmission; and / or, The second duration is the duration during which the terminal device switches from uplink transmission to downlink reception.

40. The method according to any one of claims 21 to 39, characterized in that, The terminal device is a half-duplex HD compact RedCap terminal device in a non-terrestrial network (NTN).

41. A wireless communication device, characterized in that, The device includes: The processing module is used to determine the priority between the downlink transmission and the uplink transmission based on a priority criterion when a collision occurs between the downlink transmission and the uplink transmission. The transceiver module is configured to listen for or receive the downlink transmission if the downlink transmission has a higher priority than the uplink transmission; or, The transceiver module is configured to send the uplink transmission if the downlink transmission has a lower priority than the uplink transmission.

42. A wireless communication device, characterized in that, The device includes: The transceiver module is configured to, in the event of a collision between downlink and uplink transmissions, send the downlink transmission and listen for or receive the uplink transmission; or, The processing module is configured to determine the priority between the downlink transmission and the uplink transmission based on a priority criterion; if the priority of the downlink transmission is higher than that of the uplink transmission, the downlink transmission is sent; or, if the priority of the downlink transmission is lower than that of the uplink transmission, the uplink transmission is monitored or received.

43. A communication device, characterized in that, The communication device includes a processor and a memory, the memory storing a computer program, the processor executing the computer program to implement the method as claimed in any one of claims 1 to 20, or to implement the method as claimed in any one of claims 21 to 40.

44. A computer-readable storage medium, characterized in that, The storage medium stores a computer program that is executed by a processor to implement the method as described in any one of claims 1 to 20, or to implement the method as described in any one of claims 21 to 40.

45. A chip, characterized in that, The chip includes programmable logic circuitry and / or program instructions, which, when the chip is running, are used to implement the method as described in any one of claims 1 to 20, or to implement the method as described in any one of claims 21 to 40.

46. ​​A computer program product, characterized in that, The computer program product includes computer instructions stored in a computer-readable storage medium, which a processor reads from and executes to implement the method as claimed in any one of claims 1 to 20, or the method as claimed in any one of claims 21 to 40.

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