Wireless communication method, terminal device and network device

Abstract

The embodiment of the invention provides a wireless communication method, terminal equipment and network equipment. COT initiated by the network equipment and COT initiated by the terminal equipment can reasonably coexist on an unauthorized frequency spectrum. The wireless communication method comprises: a terminal device determining a first periodic channel occupancy, the first periodic channel occupancy being a channel occupancy initiated by the terminal device, the first periodic channel occupancy comprising a first channel occupancy; and the terminal device initiates the first channel occupancy, or the terminal device determines whether to initiate the first channel occupancy.

Description

[0001] This application is a divisional application. The application number of the original application is 202080104219.X, and the original application date is August 7, 2020. The entire contents of the original application are incorporated into this application by reference. Technical Field

[0002] The embodiments of the present application relate to the field of communications, and more specifically, to a wireless communication method, a terminal device, and a network device. Background Art

[0003] In the New Radio-based access to unlicensed spectrum (NR-U) system, the spectrum used is shared spectrum. In the communication system deployed on the shared spectrum, such as the NR-U system, the Channel Occupancy Time (COT) initiated by the terminal device is introduced in the frame-based equipment (FBE) mode. However, in this case, how to transmit the signal / channel to ensure the reasonable coexistence of the COT initiated by the network device and the COT initiated by the terminal device on the unlicensed spectrum is an urgent problem to be solved. Summary of the invention

[0004] The embodiments of the present application provide a wireless communication method, a terminal device, and a network device, wherein the COT initiated by the network device and the COT initiated by the terminal device can reasonably coexist on an unlicensed spectrum.

[0005] In a first aspect, a wireless communication method is provided, the method comprising:

[0006] The terminal device determines a first period channel occupancy, where the first period channel occupancy is used for channel occupancy initiated by the terminal device, and the first period channel occupancy includes a first channel occupancy;

[0007] The terminal device initiates the first channel occupation, or the terminal device determines whether to initiate the first channel occupation.

[0008] In a second aspect, a wireless communication method is provided, the method comprising:

[0009] A network device sends at least one configuration information to a terminal device, and the at least one configuration information is used by the terminal device to determine a first-cycle channel occupancy, and the first-cycle channel occupancy is used for a channel occupancy initiated by the terminal device. The first-cycle channel occupancy includes a first channel occupancy, wherein the first channel occupancy is a channel occupancy initiated by the terminal device, or the first channel occupancy is a channel occupancy that the terminal device determines whether to initiate.

[0010] In a third aspect, a terminal device is provided for executing the method in the first aspect.

[0011] Specifically, the terminal device includes a functional module for executing the method in the above-mentioned first aspect.

[0012] In a fourth aspect, a network device is provided for executing the method in the second aspect.

[0013] Specifically, the network device includes a functional module for executing the method in the above second aspect.

[0014] In a fifth aspect, a terminal device is provided, comprising a processor and a memory, wherein the memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the method in the first aspect.

[0015] In a sixth aspect, a network device is provided, comprising a processor and a memory, wherein the memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the method in the second aspect.

[0016] In a seventh aspect, a device is provided for implementing the method in any one of the first to second aspects above.

[0017] Specifically, the apparatus includes: a processor, configured to call and run a computer program from a memory, so that a device equipped with the apparatus executes the method in any one of the first to second aspects described above.

[0018] In an eighth aspect, a computer-readable storage medium is provided for storing a computer program, wherein the computer program enables a computer to execute the method in any one of the first to second aspects above.

[0019] In a ninth aspect, a computer program product is provided, comprising computer program instructions, wherein the computer program instructions enable a computer to execute the method in any one of the first to second aspects above.

[0020] In a tenth aspect, a computer program is provided, which, when executed on a computer, enables the computer to execute the method in any one of the first to second aspects above.

[0021] Through the above technical solution, after the terminal device determines the occupation of the first channel in the first cycle channel occupancy, the first channel occupation may be initiated or not, thereby avoiding conflicts between the COT initiated by the network device and the COT initiated by the terminal device on the unlicensed spectrum, that is, the COT initiated by the network device and the COT initiated by the terminal device on the unlicensed spectrum can reasonably coexist, thereby improving communication performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of a communication system architecture applied in an embodiment of the present application.

[0023] Figure 2 This is a schematic diagram of a semi-static channel occupancy provided by the present application.

[0024] Figure 3 It is a schematic flowchart of a wireless communication method provided according to an embodiment of the present application.

[0025] Figure 4 It is a schematic diagram of a first period channel occupancy and a second period channel occupancy provided according to an embodiment of the present application.

[0026] Figure 5 It is another schematic diagram of first period channel occupancy and second period channel occupancy provided according to an embodiment of the present application.

[0027] Figure 6 It is a schematic diagram of channel occupancy provided according to an embodiment of the present application.

[0028] Figure 7 It is a schematic diagram of another channel occupancy provided according to an embodiment of the present application.

[0029] Figure 8 It is a schematic flowchart of another wireless communication method provided according to an embodiment of the present application.

[0030] Fig. 9 It is a schematic block diagram of a terminal device provided according to an embodiment of the present application.

[0031] Fig.10 It is a schematic block diagram of a network device provided according to an embodiment of the present application.

[0032] Fig.11 It is a schematic block diagram of a communication device provided according to an embodiment of the present application.

[0033] Fig.12 It is a schematic block diagram of a device provided according to an embodiment of the present application.

[0034] Fig.13It is a schematic block diagram of a communication system provided according to an embodiment of the present application. DETAILED DESCRIPTION

[0035] The following will describe the technical solutions in the embodiments of the present application in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. For the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0036] The technical solutions of the embodiments of the present application can be applied to various communication systems, such as: Global System of 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, NR system evolution system, LTE on unlicensed spectrum (LTE-U) system, NR on unlicensed spectrum (NR-U) system, Non-Terrestrial Networks (NTN) system, Universal Mobile Telecommunication System (UMTS), Wireless Local Area Networks (WLAN), Wireless Fidelity (Wireless Fidelity) system. Fidelity, WiFi), fifth-generation communication (5th-Generation, 5G) system or other communication systems, etc.

[0037] Generally speaking, traditional communication systems 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 communications, but will also support, for example, device to device (Device to Device, D2D) communication, machine to machine (Machine to Machine, M2M) communication, machine type communication (Machine Type Communication, MTC), vehicle to vehicle (V2V) communication, or vehicle to everything (V2X) communication, etc. The embodiments of the present application can also be applied to these communication systems.

[0038] The communication system in the embodiment of the present application can be applied to a carrier aggregation (CA) scenario, a dual connectivity (DC) scenario, or a standalone (SA) networking scenario.

[0039] The communication system in the embodiment of the present application can be applied to an unlicensed spectrum, where the unlicensed spectrum can also be considered as a shared spectrum; or, the communication system in the embodiment of the present application can also be applied to an authorized spectrum, where the authorized spectrum can also be considered as an unshared spectrum.

[0040] The embodiments of the present application describe various embodiments in conjunction with network devices and terminal devices, wherein the terminal device may also be referred to as user equipment (UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device, etc.

[0041] The terminal device can be a station (STATION, ST) in a WLAN, a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA) device, a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a next-generation communication system such as an NR network, or a terminal device in a future evolved Public Land Mobile Network (PLMN) network, etc.

[0042] In the embodiments of the present application, the terminal device can be deployed on land, including indoors or outdoors, handheld, wearable or vehicle-mounted; it can also be deployed on the water surface (such as ships, etc.); it can also be deployed in the air (for example, on airplanes, balloons and satellites, etc.).

[0043] In the embodiment of the present application, the terminal device can be a mobile phone, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self driving, a wireless terminal device in remote medical, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, or a wireless terminal device in a smart home, etc.

[0044] As an example but not limitation, in the embodiments of the present application, the terminal device may also be a wearable device. Wearable devices may also be referred to as wearable smart devices, which are a general term for wearable devices that are intelligently designed and developed using wearable technology for daily wear, such as glasses, gloves, watches, clothing, and shoes. A wearable device is a portable device that is worn directly on the body or integrated into the user's clothes or accessories. Wearable devices are not only hardware devices, but also powerful functions achieved through software support, data interaction, and cloud interaction. Broadly speaking, wearable smart devices include full-featured, large-sized, and fully or partially independent of smartphones, such as smart watches or smart glasses, as well as devices that only focus on a certain type of application function and need to be used in conjunction with other devices such as smartphones, such as various types of smart bracelets and smart jewelry for vital sign monitoring.

[0045] In an embodiment of the present application, the network device may be a device for communicating with a mobile device. The network device may be an access point (AP) in WLAN, a base station (Base Transceiver Station, BTS) in GSM or CDMA, a base station (NodeB, NB) in WCDMA, an evolved base station (EvolutionalNode B, eNB or eNodeB) in LTE, or a relay station or access point, or a vehicle-mounted device, a wearable device, and a network device or base station (gNB) in an NR network, or a network device in a future evolved PLMN network, or a network device in an NTN network, etc.

[0046] As an example and not limitation, in an embodiment of the present application, the network device may have a mobile characteristic, for example, the network device may be a mobile device. In one embodiment, the network device may be a satellite or a balloon station. For example, the satellite may be a low earth orbit (LEO) satellite, a medium earth orbit (MEO) satellite, a geostationary earth orbit (GEO) satellite, a high elliptical orbit (HEO) satellite, etc. In one embodiment, the network device may also be a base station set up in a location such as land or water.

[0047] In an embodiment of the present application, the network device can provide services for a cell, and the terminal device communicates with the network device through the transmission resources used by the cell (for example, frequency domain resources, or spectrum resources). The cell can be a cell corresponding to the network device (for example, a base station), and the cell can belong to a macro base station or a base station corresponding to a small cell. The small cells here may include: metro cells, micro cells, pico cells, femto cells, etc. These small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-speed data transmission services.

[0048] For example, the communication system 100 used in the embodiment of the present application is as follows: Figure 1 The communication system 100 may include a network device 110, which may be a device that communicates with a terminal device 120 (or a communication terminal or terminal). The network device 110 may provide communication coverage for a specific geographical area and may communicate with terminal devices located in the coverage area.

[0049] Figure 1A network device and two terminal devices are shown by way of example. In one implementation, the communication system 100 may include multiple network devices and each network device may include another number of terminal devices within its coverage area, which is not limited in this embodiment of the present application.

[0050] In one implementation, the communication system 100 may also include other network entities such as a network controller and a mobility management entity, which is not limited in the embodiments of the present application.

[0051] It should be understood that the device with communication function in the network / system in the embodiment of the present application can be referred to as a communication device. Figure 1 Taking the communication system 100 shown as an example, the communication equipment may include a network device 110 and a terminal device 120 with communication functions. The network device 110 and the terminal device 120 may be the specific devices described above and will not be repeated here. The communication equipment may also include other devices in the communication system 100, such as a network controller, a mobile management entity and other network entities, which is not limited in the embodiments of the present application.

[0052] It should be understood that the terms "system" and "network" are often used interchangeably in this article. The term "and / or" in this article is only a description of the association relationship of associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0053] The terms used in the implementation mode of this application are only used to explain the specific embodiments of this application, and are not intended to limit this application. The terms "first", "second", "third" and "fourth" in the specification and claims of this application and the drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0054] It should be understood that the "indication" mentioned in the embodiments of the present application can be a direct indication, an indirect indication, or an indication of an association relationship. For example, A indicates B, which can mean that A directly indicates B, for example, B can be obtained through A; it can also mean that A indirectly indicates B, for example, A indicates C, and B can be obtained through C; it can also mean that there is an association relationship between A and B.

[0055] In the description of the embodiments of the present application, the term "corresponding" may indicate a direct or indirect correspondence between two items, or an association relationship between the two items, or a relationship between indication and being indicated, configuration and being configured, and the like.

[0056] In an embodiment of the present application, the indication information or configuration information includes at least one of physical layer signaling such as downlink control information (DCI), system information (SI), radio resource control (RRC) signaling and media access control control element (MAC CE).

[0057] In the embodiment of the present application, the high-level parameters or high-level signaling include at least one of radio resource control RRC signaling and media access control element MAC CE.

[0058] Unlicensed spectrum is the spectrum allocated by countries and regions that can be used for radio equipment communications. This spectrum is generally considered to be a shared spectrum, that is, as long as communication equipment in different communication systems meets the regulatory requirements set by the country or region on the spectrum, they can use the spectrum without applying for exclusive spectrum authorization from the government.

[0059] In order to allow various communication systems that use unlicensed spectrum for wireless communication to coexist in a friendly manner on the spectrum, some countries or regions have stipulated regulatory requirements that must be met when using unlicensed spectrum. For example, communication equipment follows the "Listen Before Talk (LBT)" principle, that is, before a communication device sends a signal on a channel of the unlicensed spectrum, it needs to first perform channel sensing. Only when the channel sensing result is that the channel is idle can the communication device send a signal; if the channel sensing result of the communication device on the channel of the unlicensed spectrum is that the channel is busy, the communication device cannot send a signal. In order to ensure fairness, in one transmission, the duration of the communication device using the channel of the unlicensed spectrum for signal transmission cannot exceed the maximum channel occupancy time (MCOT).

[0060] In the unlicensed spectrum, the network equipment needs to perform LBT before sending the downlink channel or downlink signal. Only when LBT succeeds can the transmission be carried out, otherwise the transmission cannot be carried out. Therefore, the communication in the unlicensed spectrum is an opportunistic transmission. From the perspective of system layout, channel detection includes two mechanisms. One is LBT based on load equipment (LBE), also known as dynamic channel detection, dynamic channel access or dynamic channel occupancy. The other is LBT based on frame structure equipment (FBE), also known as semi-static channel detection, semi-static channel access or semi-static channel occupancy.

[0061] In the channel access mechanism of FBE, or in other words, in the semi-static channel access mode, the frame structure appears periodically, that is, the channel resources that the communication device can use for service transmission appear periodically. A frame structure includes a fixed frame period (FFP), a channel occupancy time (COT), and an idle period (IP). Among them, the length of FFP can range from 1 to 10ms, for example, the length of the channel occupancy time COT does not exceed 95% of the length of the fixed frame period FFP, the length of the idle period IP is at least 5% of the length of the fixed frame period FFP, and the minimum value of IP is 100μs, and it is located at the end of the fixed frame period FFP.

[0062] The communication device performs channel detection on the channel during the idle period to evaluate the channel availability (sensing forevaluating achannel availability, also known as idle channel assessment CCA). If the channel detection is successful, the channel occupancy time (COT) in the next fixed frame period can be used for signal transmission; if the channel detection fails, the channel occupancy time in the next fixed frame period cannot be used for signal transmission.

[0063] Currently, in the NR-U system, only COT initiated by the network device is supported in FBE mode. The semi-static channel access mode can be indicated by the base station through the system information block (SIB) 1 or configured through high-level parameters. Figure 2 , the length of the fixed frame period (FFP) is T x Can be configured by the base station, T x The unit is ms, T x The value range may include, for example, 1, 2, 2.5, 4, 5, and 10. Starting from every two consecutive radio frames, within every two consecutive radio frames, according to x·T x Determine the starting position of the FFP, where x∈{0,1,…,20 / T x -1}, the maximum COT length in FFP is T y =0.95·T x , the idle period length within FFP is at least T z =max(0.05·T x , 100μs).

[0064] If a serving cell is configured as a semi-static channel access mode, the periodic channel occupancy length of the serving cell is T x The maximum channel occupancy length included in the periodic channel occupancy length of the service cell is T y The length of the idle period included in the periodic channel occupancy length of the serving cell is T z The terminal device can be configured according to the T x Determine T y and / or T z For example, as described above, the terminal device determines the length T of the FFP x After that, the starting position of the FFP, the period of the FFP, the maximum COT length for signal transmission in the FFP, the idle period for channel detection in the FFP and other information can be determined according to the preset rules.

[0065] In the existing NR-U system, if the system is in FBE mode, the terminal device is not allowed to initiate COT. If the terminal device wants to perform uplink transmission, the terminal device can only share the COT of the base station. The channel detection method of the terminal device is to perform an energy detection of 9 microseconds in a detection time slot channel of 16 microseconds or 25 microseconds, and transmit after the energy detection passes. Alternatively, if the gap between the starting position of the uplink transmission of the terminal device and the end position of the downlink transmission of the base station is less than or equal to 16 microseconds, the terminal device may not perform channel detection and directly perform uplink transmission. Specifically, in FBE mode, when the terminal device is scheduled to transmit the physical uplink shared channel (Physical Uplink Shared Channel, PUSCH) or the physical uplink control channel (Physical Uplink Control Channel, PUCCH), the network device can carry the downlink control information (DownlinkControl Information, DCI) of the uplink grant (UL grant) or downlink grant (DL grant) to indicate the channel monitoring method corresponding to the PUSCH or PUCCH and the size of the delayed cyclic prefix to be transmitted by the terminal device.

[0066] In the NR-U system, it is currently considered to support COT initiated by terminal devices in FBE mode. In this case, how to transmit signals / channels to ensure the reasonable coexistence of COT initiated by network devices and COT initiated by terminal devices on the unlicensed spectrum is the main consideration of this application.

[0067] Based on the above problems, the present application proposes a solution for terminal device to initiate COT, which can enable COT initiated by network equipment and COT initiated by terminal equipment to coexist reasonably on the unlicensed spectrum, thereby improving communication performance.

[0068] The technical solution of the present application is described in detail below through specific embodiments.

[0069] Figure 3 is a schematic flow chart of a wireless communication method 200 according to an embodiment of the present application, such as Figure 3 As shown, the method 200 may include at least part of the following contents:

[0070] S210, the terminal device determines a first periodic channel occupancy, where the first periodic channel occupancy is for a channel occupancy initiated by the terminal device, and the first periodic channel occupancy includes a first channel occupancy;

[0071] S220, the terminal device initiates the occupation of the first channel, or the terminal device determines whether to initiate the occupation of the first channel, or the terminal device determines whether to cancel the initiation of the occupation of the first channel.

[0072] It should be noted that, in the embodiment of the present application, the first period channel occupancy may be equivalent to the FFP corresponding to the first FFP, and the first channel occupancy may be equivalent to the first FFP.

[0073] In one implementation, the first channel occupancy includes a first COT and a first IP.

[0074] In the embodiments of the present application,

[0075] The first periodic channel occupancy is a periodic channel occupancy corresponding to a periodic channel occupancy configured for the terminal device; or,

[0076] The first periodic channel occupancy is one of the multiple periodic channel occupancies configured for the terminal device.

[0077] In an embodiment of the present application, the terminal device may determine the first period channel occupancy by a scheme in at least one of the following examples 1 to 4, that is, S210 may be a scheme in at least one of the following examples 1 to 4.

[0078] Example 1: The terminal device determines the first period channel occupancy according to the first configuration information, wherein:

[0079] The first configuration information is used to indicate at least one of the following:

[0080] The length of the first cycle channel occupancy, the period of the first cycle channel occupancy, the COT length in the first cycle channel occupancy, the maximum COT length in the first cycle channel occupancy, the IP length in the first cycle channel occupancy, and the minimum IP length in the first cycle channel occupancy.

[0081] In one implementation, the length of the first periodic channel occupancy is the same as the period of the first periodic channel occupancy.

[0082] In one implementation, in Example 1, the terminal device receives the first configuration information sent by the network device.

[0083] In one implementation, the first configuration information is proprietary signaling of the terminal device, or the first configuration information is public signaling of the terminal device.

[0084] In one implementation, the first configuration information is carried in SIB1, or the first configuration information is carried in high-layer signaling.

[0085] In one implementation, the first periodic channel occupancy is continuous in the time domain. In this case, in Example 1, the first configuration information is used to indicate the length of the first periodic channel occupancy, or the first configuration information is used to indicate the period of the first periodic channel occupancy.

[0086] In one implementation, the first periodic channel occupancy may also be non-continuous in the time domain.

[0087] For example, in Example 1, the network device configures the length T of the first periodic channel occupancy for the terminal device through the first configuration information. x1 , unit is ms, T x1 The value range may include, for example, 1, 2, 2.5, 4, 5, and 10. Starting from every two consecutive radio frames, within every two consecutive radio frames, according to x1·T x1 Determine the starting position of the first cycle channel occupancy, where x1∈{0,1,…,20 / T x1 -1}, the maximum COT length in the first cycle of channel occupancy is T y1 =0.95·T x1 , the minimum IP length in the first cycle of channel occupancy is T z1 =max(0.05·T x1 , 100μs).

[0088] For example, in Example 1, the network device configures the first periodic channel occupancy length T for the terminal device through the first configuration information. x1 The maximum COT length in the first cycle of channel occupancy is T. y1 =3.8ms, the minimum IP length in the first cycle of channel occupancy is T z1 =0.2ms.

[0089] In one implementation, the length of the first COT included in the first channel occupancy is indicated by the network device. For example, in Example 1, the network device indicates the length of the first COT through the first configuration information. Alternatively, the length of the first COT included in the first channel occupancy is based on the maximum COT length T in the first periodic channel occupancy. y1 Sure.

[0090] In one embodiment, the maximum COT length in the first cycle channel occupancy is indicated by the network device, or the maximum COT length in the first cycle channel occupancy is determined by the terminal device according to the configuration parameters of the network device, for example, the network device configures the length T of the first cycle channel occupancy x1 is 4ms, and the terminal equipment is based on T y1 =0.95·T x1 Determine the maximum COT length in the first cycle channel occupancy as T y1 =3.8ms.

[0091] Example 2: The terminal device determines the first period channel occupancy according to the second period channel occupancy, wherein:

[0092] The period of the first period channel occupancy is the same as the period of the second period channel occupancy, or the length of the first period channel occupancy is the same as the length of the second period channel occupancy.

[0093] That is to say, in Example 2, since the period of the first cycle channel occupancy is the same as the period of the second cycle channel occupancy, or the length of the first cycle channel occupancy is the same as the length of the second cycle channel occupancy, in this case, the terminal device can determine the occupancy of the first cycle channel based on the second cycle channel occupancy.

[0094] In one implementation, in Example 2, the second period channel occupancy may be configured or indicated by the network device.

[0095] Example 3: The terminal device determines the first period channel occupancy according to the second configuration information, wherein:

[0096] The second configuration information is used to indicate the period of second period channel occupancy or the length of the second period channel occupancy, the period of the first period channel occupancy is the same as the period of the second period channel occupancy, or the length of the first period channel occupancy is the same as the length of the second period channel occupancy.

[0097] In one implementation, in Example 3, the terminal device receives the second configuration information sent by the network device.

[0098] That is to say, in Example 3, since the period of occupation of the first period channel is the same as the period of occupation of the second period channel, or the length of occupation of the first period channel is the same as the length of occupation of the second period channel, in this case, the terminal device can determine the occupation of the first period channel based on the second configuration information.

[0099] In one implementation, in Example 3, the second configuration information is a dedicated signaling of the terminal device, or the second configuration information is a common signaling of the terminal device. In addition, the second configuration information is carried in SIB1, or the second configuration information is carried in a high-layer signaling.

[0100] For example, in Example 3, the network device configures the length T of the second periodic channel occupancy for the terminal device through the second configuration information. x2 , unit is ms, T x2 The value range may include, for example, 1, 2, 2.5, 4, 5, and 10. Starting from every two consecutive radio frames, within every two consecutive radio frames, according to x2·T x2 Determine the starting position of the second period channel occupancy, where x2∈{0,1,…,20 / T x2 -1}, the maximum COT length in the second period of channel occupancy is T y2 =0.95·T x2 , the minimum IP length in the second cycle channel occupancy is T z2 =max(0.05·T x2 , 100μs).

[0101] In some embodiments, in the above examples 2 and 3, the period of occupation of the first periodic channel and the period of occupation of the second periodic channel may be the same and may have other associations, for example, the period of occupation of the first periodic channel is an integer multiple of the period of occupation of the second periodic channel. For another example, the period of occupation of the second periodic channel is an integer multiple of the period of occupation of the first periodic channel.

[0102] In one implementation, in the above examples 2 and 3, the offset value between the first periodic channel occupancy and the second periodic channel occupancy is preset. Alternatively, the offset value between the first periodic channel occupancy and the second periodic channel occupancy is agreed upon by a protocol.

[0103] In one implementation, in the above-mentioned Example 2 and Example 3, the offset value between the first period channel occupancy and the second period channel occupancy is determined according to the third configuration information.

[0104] In one implementation, the third configuration information is a dedicated signaling of the terminal device, or the third configuration information is a common signaling of the terminal device. In addition, the third configuration information is carried in SIB1, or the third configuration information is carried in a high-layer signaling.

[0105] In one implementation, the terminal device receives the third configuration information sent by the network device.

[0106] In one implementation, in the above examples 2 and 3,

[0107] The offset value between the first period channel occupancy and the second period channel occupancy is a positive offset value; or,

[0108] The offset value between the first period channel occupancy and the second period channel occupancy is a negative offset value; or,

[0109] The offset value between the first period channel occupancy and the second period channel occupancy is 0.

[0110] In one implementation, in the above examples 2 and 3, the second periodic channel occupancy is for channel occupancy initiated by a network device, and the second periodic channel occupancy includes the second channel occupancy. In one implementation, the second channel occupancy includes the second COT and the second IP.

[0111] In one implementation, in the above examples 2 and 3,

[0112] The frequency domain resources corresponding to the first periodic channel occupancy and the frequency domain resources corresponding to the second periodic channel occupancy partially overlap in the frequency domain; or,

[0113] The frequency domain resources corresponding to the first periodic channel occupancy and the frequency domain resources corresponding to the second periodic channel occupancy completely overlap in the frequency domain; or,

[0114] The frequency domain resources corresponding to the first periodic channel occupancy and the frequency domain resources corresponding to the second periodic channel occupancy do not overlap in the frequency domain.

[0115] In one implementation, in the above examples 2 and 3,

[0116] The first periodic channel occupancy includes a first channel occupancy, and the first channel occupancy includes a first COT and a first IP, the second periodic channel includes a second channel occupancy, and the second channel occupancy includes a second COT and a second IP,

[0117] In this case, the time domain position relationship between the first channel occupancy in the first period channel occupancy and the second channel occupancy in the second period channel occupancy includes but is not limited to at least one of the following:

[0118] The second channel occupancy includes the first channel occupancy;

[0119] The second COT includes the first channel occupancy;

[0120] The second IP includes the occupation of the first channel;

[0121] The first channel occupancy includes the second channel occupancy;

[0122] The first COT includes the second channel occupancy;

[0123] The first IP includes the occupation of the second channel;

[0124] The first channel occupancy and the second channel occupancy at least partially overlap;

[0125] The first COT and the second COT at least partially overlap;

[0126] The first IP and the second IP at least partially overlap;

[0127] The second COT includes the first COT, and the first IP includes the second IP;

[0128] The first COT includes the second COT, and the second IP includes the first IP;

[0129] The first channel occupancy includes multiple channel occupancy in the second period channel occupancy;

[0130] The second channel occupancy includes multiple channel occupancy in the first period channel occupancy.

[0131] For example, Figure 4 As shown, the first cycle channel occupancy is used for channel occupancy initiated by a terminal device, the first cycle channel occupancy includes a first channel occupancy, the first channel occupancy includes a first COT and a first IP, and the first resource on the first time slot in the first channel occupancy is used to transmit a first uplink channel and / or an uplink signal, for example, the first resource includes a first uplink preconfigured resource. The second cycle channel occupancy is used for channel occupancy initiated by a network device, the second cycle channel occupancy includes a second channel occupancy, and the second channel occupancy includes a second COT and a second IP. Figure 4In, as an example, the time domain resources occupied by the second COT include the time domain resources occupied by the first COT, and the time domain resources occupied by the first IP include the time domain resources occupied by the second IP. It should be understood that by configuring the time domain resources occupied by the first IP to include the time domain resources occupied by the second IP, signal transmission is not allowed in the time domain resources occupied by the second IP, so the time domain resources occupied by the second IP can be used for channel detection by other systems, thereby ensuring the fairness of shared spectrum use. In addition, the length of the first cycle channel occupancy is the same as the length of the second cycle channel occupancy, the first offset value between the first cycle channel occupancy and the second cycle channel occupancy is a positive offset value, or the starting position of the first channel occupancy is within the second COT.

[0132] For example, Figure 5 As shown, the first cycle channel occupancy is used for channel occupancy initiated by a terminal device, the first cycle channel occupancy includes a first channel occupancy, the first channel occupancy includes a first COT and a first IP, and the first resource on the first time slot in the first channel occupancy is used to transmit a first uplink channel and / or an uplink signal, for example, the first resource includes a first uplink preconfigured resource. The second cycle channel occupancy is used for channel occupancy initiated by a network device, the second cycle channel occupancy includes a second channel occupancy, and the second channel occupancy includes a second COT and a second IP. Figure 5 In, as an example, the time domain resources occupied by the first COT include the time domain resources occupied by the second COT, and the time domain resources occupied by the second IP include the time domain resources occupied by the first IP. It should be understood that by configuring the time domain resources occupied by the second IP to include the time domain resources occupied by the first IP, signal transmission is not allowed in the time domain resources occupied by the first IP, so the time domain resources occupied by the first IP can be used for channel detection by other systems, thereby ensuring the fairness of shared spectrum use. In addition, the length of the first period channel occupancy is the same as the length of the second period channel occupancy, the second offset value between the first period channel occupancy and the second period channel occupancy is a negative offset value, or the starting position of the second channel occupancy is within the first COT.

[0133] Example 4: The terminal device determines the first period channel occupancy according to fourth configuration information, wherein:

[0134] In an implementation manner, the fourth configuration information is used to indicate a period of the first uplink pre-configured resource, and a period occupied by the first periodic channel is the same as a period of the first uplink pre-configured resource.

[0135] In one embodiment, the fourth configuration information is used to indicate the starting position of the first uplink pre-configured resource, and the starting position of the channel occupancy included in the first periodic channel occupancy is the same as the starting position of the uplink pre-configured resource corresponding to the first uplink pre-configured resource; or, the terminal device determines the starting position of the first periodic channel occupancy based on the fourth configuration information.

[0136] In one embodiment, the terminal device determines the offset value between the first period channel occupancy and the second period channel occupancy based on fourth configuration information, wherein the fourth configuration information is used to indicate the starting position of the first uplink pre-configured resource, and the second period channel occupancy is the channel occupancy initiated by the network device as described above.

[0137] In one implementation, in the above-mentioned Example 2 and Example 3, the offset value between the first period channel occupancy and the second period channel occupancy is determined according to the fourth configuration information.

[0138] In one implementation, the terminal device receives the fourth configuration information sent by the network device.

[0139] In some embodiments, in the above example 4, the period occupied by the first periodic channel and the period of the first uplink pre-configured resource may be the same, and may also have other associations, for example, the period occupied by the first periodic channel is an integer multiple of the period of the first uplink pre-configured resource. For another example, the period of the first uplink pre-configured resource is an integer multiple of the period occupied by the first periodic channel.

[0140] In one implementation, the first uplink pre-configured resource is used to transmit a first uplink channel and / or an uplink signal.

[0141] In one implementation, a starting position of the first uplink preconfigured resource is the same as a starting position occupied by the first channel.

[0142] In one implementation, in some embodiments, the first resource on the first time slot occupied by the first channel is used to transmit a first uplink channel and / or an uplink signal, wherein the starting position of the first resource is the same as the starting position of the first channel.

[0143] In one embodiment, the first resource includes a first uplink pre-configured resource; or, the first resource includes an uplink resource indicated by a first uplink grant. In one embodiment, the period of the first uplink pre-configured resource is the same as the period of the first periodic channel occupancy.

[0144] In one embodiment, the first uplink authorization includes but is not limited to at least one of the following:

[0145] A DCI format such as DCI format 0_0, DCI format 0_1, or DCI format 0_2, a random access response uplink grant (Random Access Response UL grant, RAR UL grant), a fallback random access response uplink grant (fallback RAR UL grant), and a successful random access response (successRAR).

[0146] In one embodiment, the first uplink channel and / or uplink signal includes but is not limited to at least one of the following:

[0147] Physical Uplink Control Channel (PUCCH), Physical Random Access Channel (PRACH), Physical Uplink Shared Channel (PUSCH), and Sounding Reference Signal (SRS).

[0148] It should be noted that, when the first uplink pre-configured resource is a resource configured for transmitting PRACH, the first uplink pre-configured resource may be a random access opportunity (RACH occasion, RO) resource. In addition, when the first uplink pre-configured resource is a resource configured for transmitting PUSCH, what is transmitted on the first uplink pre-configured resource is a configured grant PUSCH (Configured Grant-PUSCH, CG-PUSCH).

[0149] In an embodiment of the present application, the terminal device may determine whether to initiate the occupation of the first channel, or determine whether to cancel the initiation of the occupation of the first channel, through the scheme in Example 5 below.

[0150] Example 5: The terminal device determines whether to initiate occupation of the first channel, including one of the following:

[0151] The terminal device always determines to initiate the first channel occupation;

[0152] The terminal device determines whether to initiate occupation of the first channel according to the first condition;

[0153] If the terminal device is configured with a condition capable of initiating occupation of the first channel, the terminal device determines to initiate occupation of the first channel;

[0154] If the terminal device is configured with a COT shared energy detection threshold (for example, configured with a high-level parameter ul-toDL-COT-SharingED-Threshold-r16), the terminal device determines to initiate the first channel occupation;

[0155] If the terminal device is not configured with the COT shared energy detection threshold, the terminal device determines not to initiate the first channel occupation;

[0156] If the terminal device is configured with the COT shared energy detection threshold, the terminal device determines whether to initiate the first channel occupation according to the first condition;

[0157] If the terminal device is not configured with the COT shared energy detection threshold, the terminal device determines whether to initiate the first channel occupation according to the first condition.

[0158] In Example 5, in the case where the terminal device always determines to initiate the occupation of the first channel, the terminal device can always perform channel detection before occupying the first channel.

[0159] The first period channel occupancy includes the first channel occupancy, and the first channel occupancy includes the first COT, and the first period channel occupancy is used for the channel occupancy initiated by the terminal device; the second period channel occupancy includes the second channel occupancy, and the second channel occupancy includes the second COT, and the second period channel occupancy is used for the channel occupancy initiated by the network device. For example, assuming that the second COT is within the first COT, if the terminal device obtains the first COT, the terminal device can share the resources in the first COT with the network device, so that the network device can perform downlink transmission in a shared manner through the resources in the first COT or the second COT. For another example, if the terminal device does not obtain the first COT, the network device can initiate the second COT, and after obtaining the second COT, perform downlink transmission through the resources in the second COT. Further, the network device can share the resources in the second COT with the terminal device.

[0160] In one implementation, in Example 5, the terminal device determines whether to initiate occupation of the first channel according to the first condition, including but not limited to one of the following:

[0161] If the terminal device receives the first downlink channel and / or downlink signal sent by the network device, the terminal device determines not to initiate occupation of the first channel; for example, if the terminal device receives the first downlink channel and / or downlink signal sent by the network device, the terminal device can share the COT of the network device, so the terminal device may not initiate COT.

[0162] If the terminal device does not receive the first downlink channel and / or downlink signal sent by the network device, the terminal device determines to initiate the occupation of the first channel; for example, if the terminal device does not receive the first downlink channel and / or downlink signal sent by the network device, the terminal device can initiate COT on its own to perform uplink transmission.

[0163] If the terminal device determines that the first resource on the first time slot in the first channel occupation cannot be used to transmit the first uplink channel and / or uplink signal, the terminal device determines not to initiate the first channel occupation; for example, if the terminal device determines that the first resource cannot be used for uplink transmission, even if the terminal device succeeds in channel detection, it cannot be sent through the first resource, so the terminal device may not initiate the first channel occupation.

[0164] If the terminal device determines that the first resource on the first time slot in the first channel occupation can be used to transmit the first uplink channel and / or uplink signal, the terminal device determines to initiate the first channel occupation.

[0165] In one implementation, the first condition may be pre-configured or agreed upon by a protocol, or the first condition may be configured by the network device.

[0166] In one implementation, in Example 5, the first resource on the first time slot in the first channel occupation includes a first uplink preconfigured resource, and the terminal device determines whether to initiate the first channel occupation according to a first condition, including but not limited to one of the following:

[0167] In a case where there is no uplink channel or uplink signal to be transmitted on the first uplink pre-configured resource, the terminal device determines not to initiate occupation of the first channel;

[0168] In the case that there is no uplink channel or uplink signal to be transmitted on the first uplink pre-configured resource, if the terminal device has not received the first downlink channel and / or downlink signal sent by the network device, the terminal device determines to initiate the occupation of the first channel; for example, the terminal device can share the resources in the first COT in the first channel occupation with the network device for downlink transmission.

[0169] In the case where there is no uplink channel or uplink signal to be transmitted on the first uplink preconfigured resource, if the terminal device determines that the first resource on the first time slot in the first channel occupation can be used to transmit the first uplink channel and / or uplink signal, the terminal device determines to initiate the first channel occupation. For example, the terminal device can share the resources in the first COT in the first channel occupation with the network device for downlink transmission.

[0170] In one embodiment, there is no uplink channel or uplink signal to be transmitted on the first uplink preconfigured resource, including: there is no unicast user data on the first uplink preconfigured resource. For example, the terminal device has no uplink shared channel (UL-SCH) on the first uplink preconfigured resource.

[0171] In one implementation, in Example 5, the terminal device determines that the first resource on the first time slot occupied by the first channel is not available for transmitting the first uplink channel and / or uplink signal, including but not limited to at least one of the following:

[0172] The terminal device determines, according to the first indication information sent by the network device, that the first resource on the first time slot occupied by the first channel cannot be used to transmit the first uplink channel and / or uplink signal;

[0173] The symbols included in the first resource are indicated as downlink symbols;

[0174] The terminal device determines, according to the first DCI format sent by the network device, that some or all of the symbols included in the first resource are used to transmit a downlink channel and / or a downlink signal;

[0175] The first resource includes a first uplink pre-configured resource, and the terminal device determines, according to the detected DCI format 2_0, that a symbol included in the first uplink pre-configured resource is indicated as a downlink symbol or a flexible symbol;

[0176] The first resource includes a first uplink pre-configuration resource, the symbols included in the first uplink pre-configuration resource are indicated as flexible symbols, the terminal device is configured to monitor DCI format 2_0, the terminal device is not configured to enable uplink pre-configuration parameters (for example, the high-level parameter EnableConfiguredUL-r16 is not configured) and the terminal device does not detect DCI format 2_0.

[0177] In one embodiment, the first indication information may indicate that the first resource on the first time slot in the first channel occupation can be used to transmit the first uplink channel and / or uplink signal, or the first indication information may also indicate that the first resource on the first time slot in the first channel occupation cannot be used to transmit the first uplink channel and / or uplink signal.

[0178] In one implementation, the symbols included in the first resource are indicated as downlink symbols, which may be indicated by DCI format 2_0 that the symbols included in the first resource are downlink symbols, or may be indicated by a high-level parameter such as tdd-UL-DL-ConfigurationCommon or tdd-UL-DL-ConfigurationDedicated that the symbols included in the first resource are downlink symbols.

[0179] In one implementation, the first DCI format includes, for example, DCI format 1_0, DCI format 1_1, DCI format 1_2, or DCI format 0_1.

[0180] In one implementation, in Example 5, the terminal device determines that the first resource on the first time slot occupied by the first channel can be used to transmit the first uplink channel and / or uplink signal, including at least one of the following:

[0181] The terminal device determines, according to the first indication information sent by the network device, that the first resource on the first time slot occupied by the first channel can be used to transmit the first uplink channel and / or uplink signal;

[0182] The terminal device determines, according to the first uplink authorization sent by the network device, that the first resource on the first time slot occupied by the first channel can be used to transmit the first uplink channel and / or uplink signal, wherein the first uplink authorization includes one of an uplink authorization DCI format, a random access response uplink authorization, a fallback random access response uplink authorization, and a successful random access response;

[0183] The symbols included in the first resource are indicated as uplink symbols;

[0184] The first resource includes a first uplink pre-configured resource, a symbol included in the first uplink pre-configured resource is indicated as a flexible symbol and the terminal device is not configured to monitor DCI format 2_0;

[0185] The first resource includes a first uplink pre-configured resource, and the terminal device determines, according to the detected DCI format 2_0, that a symbol included in the first uplink pre-configured resource is indicated as an uplink symbol;

[0186] The first resource includes a first uplink pre-configuration resource, the symbols included in the first uplink pre-configuration resource are indicated as flexible symbols, the terminal device is configured to monitor DCI format 2_0, the terminal device is configured to enable uplink pre-configuration parameters (for example, the high-level parameter EnableConfiguredUL-r16 is configured) and the terminal device does not detect DCI format 2_0.

[0187] In one implementation, the uplink grant DCI format may be DCI format 0_0, DCI format 0_1, or DCI format 0_2, etc. In addition, the uplink grant DCI format may be used to schedule PUSCH, and may also be used to activate CG-PUSCH.

[0188] In one implementation, in Example 5, the first downlink channel and / or downlink signal includes but is not limited to at least one of the following:

[0189] Physical Downlink Control Channel (PDCCH), Physical Downlink Shared Channel (PDSCH), synchronization signal / physical broadcast channel block (SS / PBCH), Channel State Information Reference Signal (CSI-RS), Demodulation Reference Signal (DMRS), Phase Tracking Reference Signal (PT-RS), Tracking reference signal (TRS).

[0190] In one embodiment, the PDSCH includes a scheduled PDSCH or a semi-persistent scheduling (Semi-Persistent Scheduling, SPS) PDSCH.

[0191] For example, the first downlink channel and / or downlink signal includes a first PDCCH, and the indication information 1 carried in the first PDCCH is used to indicate whether the terminal device initiates the occupation of the first channel, or the indication information 1 is used to indicate whether the terminal device wants to cancel the initiation of the first channel occupation.

[0192] For another example, the first downlink channel and / or downlink signal includes a first PDCCH, the first PDCCH carries DCI format 2_0, and a newly added information field in the DCI format 2_0 is indication information 2. The indication information 2 is used to indicate whether the terminal device initiates the occupation of the first channel, or the indication information 2 is used to indicate whether the terminal device wants to cancel the initiation of the occupation of the first channel.

[0193] For another example, the first downlink channel and / or downlink signal includes a first PDCCH, which carries DCI format 2_0, and the direction of the symbol in the DCI format 2_0 is indicated by indication information 3, and the indication information 3 is, for example, "U", "D" or "F", etc., where "U" represents an uplink symbol, "D" represents a downlink symbol, and "F" represents a flexible symbol.

[0194] In one implementation, in Example 5, the first downlink channel and / or downlink signal sent by the network device received by the terminal device may specifically be:

[0195] The terminal device receives the first downlink channel and / or downlink signal sent by the network device within the second COT occupied by the second channel.

[0196] In one embodiment, in Example 5, the terminal device does not receive the first downlink channel and / or downlink signal sent by the network device, which can specifically mean that the terminal device does not receive the first downlink channel and / or downlink signal sent by the network device within the second COT occupied by the second channel.

[0197] In one embodiment, in Example 5, the second channel occupancy is a channel occupancy initiated by a network device, and the time domain resources in the second COT in the second channel occupancy include the time domain resources in the first COT in the first channel occupancy, or, the time domain resources in the first COT include the time domain resources in the second COT, or, the first COT and the second COT at least partially overlap in the time domain.

[0198] In some embodiments of the present application,

[0199] If the terminal device determines to initiate the occupation of the first channel, the terminal device initiates the occupation of the first channel; or,

[0200] If the terminal device determines not to initiate the occupation of the first channel, the terminal device cancels the initiation of the occupation of the first channel; or,

[0201] If the terminal device determines not to initiate occupation of the first channel, the terminal device does not perform channel detection for evaluating availability of occupation of the first channel.

[0202] In some embodiments of the present application,

[0203] If the terminal device initiates the occupation of the first channel, the terminal device initiates the occupation of the first channel; or,

[0204] If the terminal device does not initiate the occupation of the first channel, the terminal device cancels the initiation of the occupation of the first channel; or,

[0205] If the terminal device does not initiate occupation of the first channel, the terminal device does not perform channel detection for evaluating the availability of occupation of the first channel.

[0206] In some embodiments of the present application, the terminal device initiating the first channel occupation may specifically be:

[0207] The terminal device performs a channel detection to evaluate the availability of the first channel for occupancy.

[0208] For example, the terminal device performs channel detection during the idle period of the previous channel occupation of the first channel. If the channel detection result is idle, the terminal device determines that the first COT is available, which is also called the terminal device obtaining the first channel occupancy; if the channel detection is busy, the terminal device determines that the first COT is unavailable.

[0209] In one embodiment, the terminal device performs channel detection to evaluate the availability of the first channel occupation, including: the terminal device performs energy detection of a length of 9 microseconds before the first channel is occupied to evaluate the availability of the first COT in the first channel occupation.

[0210] In some embodiments of the present application, if the terminal device initiates the occupation of the first channel, the terminal device may share the resources in the first COT obtained in the occupation of the first channel with the network device.

[0211] Therefore, in an embodiment of the present application, after the terminal device determines the occupation of the first channel in the first cycle channel occupancy, the first channel occupation may be initiated or not, thereby avoiding conflicts between the COT initiated by the network device and the COT initiated by the terminal device on the unlicensed spectrum, that is, the COT initiated by the network device and the COT initiated by the terminal device on the unlicensed spectrum can reasonably coexist, thereby improving communication performance.

[0212] The scheme in this application is described in detail below through Example 1 and Example 2.

[0213] Embodiment 1, as Figure 6As shown, the terminal device determines a first FFP and a second FFP, the first FFP is used for the terminal device to initiate channel occupation, the first FFP includes a first COT and a first IP, and the second FFP is used for the network device to initiate channel occupation, the second FFP includes a second COT and a second IP. Among them, the frequency domain resources corresponding to the first FFP and the frequency domain resources corresponding to the second FFP completely overlap in the frequency domain. The FFP corresponding to the first FFP and the FFP corresponding to the second FFP have the same FFP length, and the first offset value between the FFP corresponding to the first FFP and the FFP corresponding to the second FFP is a positive offset value. The time domain resources occupied by the second COT include the time domain resources occupied by the first COT, and the time domain resources occupied by the first IP include the time domain resources occupied by the second IP.

[0214] In Embodiment 1, Case 1: the terminal device determines to transmit a first uplink channel or an uplink signal on a first pre-configured resource.

[0215] In some possible implementations, if the terminal device does not receive the first downlink channel or downlink signal sent by the network device in the second COT, or the terminal device does not receive the first indication information sent by the network device in the second COT, the terminal device initiates the first COT, or the terminal device performs channel detection at the LBT position of the first FFP. If the terminal device successfully performs channel detection at the LBT position of the first FFP, the terminal device transmits the first uplink channel or uplink signal through the first pre-configured resource. If the terminal device fails to perform channel detection at the LBT position of the first FFP, the terminal device does not transmit the first uplink channel or uplink signal through the first pre-configured resource. Furthermore, in the case where the terminal device transmits the first uplink channel or uplink signal through the first pre-configured resource, the terminal device can also share the resources in the first COT with the network device.

[0216] In some possible implementations, if the terminal device receives the first indication information sent by the network device in the second COT, and the terminal device determines that the uplink transmission can be performed through the first pre-configured resource based on the first indication information, then the terminal device cancels the initiation of the first COT, or the terminal device can perform channel detection for the first pre-configured resource by sharing the second COT, and transmit the first uplink channel or uplink signal through the first pre-configured resource after the channel detection is successful, or does not transmit the first uplink channel or uplink signal through the first pre-configured resource after the channel detection fails. Among them, the channel detection method when the terminal device shares the COT can be the same as the prior art and will not be repeated.

[0217] In some possible implementations, if the terminal device receives the first indication information sent by the network device within the second COT, and the terminal device determines that the uplink transmission cannot be performed through the first pre-configured resource according to the first indication information, the terminal device cancels the initiation of the first COT, or the terminal device does not transmit the first uplink channel or uplink signal through the first pre-configured resource. Accordingly, the terminal device does not perform channel detection for the first pre-configured resource.

[0218] In Embodiment 1, Case 2: the terminal device determines that there is no unicast data to be transmitted on the first pre-configured resource, for example, there is no unicast PUSCH.

[0219] In some possible implementations, if the terminal device does not receive the first downlink channel or downlink signal sent by the network device in the second COT, or the terminal device does not receive the first indication information sent by the network device in the second COT, the terminal device initiates the first COT, or in other words, the terminal device performs channel detection at the LBT position of the first FFP. If the terminal device successfully performs channel detection at the LBT position of the first FFP, the terminal device transmits the first information through the first pre-configured resource, wherein the first information is used to instruct the terminal device to share the resources in the first COT with the network device. If the terminal device fails to perform channel detection at the LBT position of the first FFP, the terminal device does not transmit the first information through the first pre-configured resource.

[0220] In some possible implementations, if the terminal device does not receive the first downlink channel or downlink signal sent by the network device within the second COT, or the terminal device does not receive the first indication information sent by the network device within the second COT, the terminal device cancels initiation of the first COT.

[0221] In some possible implementations, if the terminal device receives the first indication information sent by the network device within the second COT, and the terminal device determines that uplink transmission can be performed through the first preconfigured resources based on the first indication information, the terminal device cancels initiation of the first COT.

[0222] In some possible implementations, if the terminal device receives the first indication information sent by the network device within the second COT, and the terminal device determines that uplink transmission cannot be performed through the first preconfigured resources based on the first indication information, the terminal device cancels initiation of the first COT.

[0223] In one implementation, in Example 1, the terminal device initiates a first COT in at least one of the following situations:

[0224] The terminal device is configured with the COT shared energy detection threshold (e.g., ul-toDL-COT-SharingED-Threshold-r16);

[0225] The terminal device does not receive the downlink transmission within the second COT;

[0226] The terminal device receives a symbol included in the first uplink pre-configured resource scheduled in a DCI format for uplink transmission;

[0227] The symbols included in the first uplink pre-configured resource are indicated as uplink symbols by a higher layer parameter (e.g., tdd-UL-DL-ConfigurationCommon or tdd-UL-DL-ConfigurationDedicated);

[0228] The symbols included in the first uplink pre-configured resource are indicated as flexible symbols by a higher layer parameter (e.g., tdd-UL-DL-ConfigurationCommon or tdd-UL-DL-ConfigurationDedicated) and the terminal device is not configured to monitor DCI format 2_0;

[0229] The terminal device determines, according to the detected DCI format 2_0, that a symbol included in the first uplink pre-configured resource is indicated as an uplink symbol;

[0230] The symbols included in the first uplink pre-configuration resource are indicated as flexible symbols by high-level parameters (e.g., tdd-UL-DL-ConfigurationCommon or tdd-UL-DL-ConfigurationDedicated), the terminal device is configured to monitor DCI format 2_0, the terminal device is configured to enable uplink pre-configuration parameters (e.g., EnableConfiguredUL-r16) and the terminal device does not detect DCI format 2_0.

[0231] In one implementation, in Example 1, the terminal device cancels initiation of the first COT in at least one of the following situations:

[0232] The terminal device is not configured with the COT shared energy detection threshold (for example, ul-toDL-COT-SharingED-Threshold-r16);

[0233] The terminal device receives any downlink transmission within the second COT;

[0234] The symbols included in the first uplink pre-configured resource are indicated as downlink symbols by a higher layer parameter (e.g., tdd-UL-DL-ConfigurationCommon or tdd-UL-DL-ConfigurationDedicated);

[0235] The terminal device receives at least one symbol included in the symbols of the first uplink pre-configured resource scheduled in the DCI format for downlink transmission;

[0236] The terminal device determines, according to the detected DCI format 2_0, that a symbol included in the first uplink pre-configured resource is indicated as a downlink symbol or a flexible symbol;

[0237] The symbols included in the first uplink pre-configuration resource are indicated as flexible symbols by high-level parameters (e.g., tdd-UL-DL-ConfigurationCommon or tdd-UL-DL-ConfigurationDedicated), the terminal device is configured to monitor DCI format 2_0, the terminal device is not configured to enable uplink pre-configuration parameters (e.g., EnableConfiguredUL-r16) and the terminal device does not detect DCI format 2_0.

[0238] In Embodiment 1, if the terminal device receives a downlink signal from the base station in the second COT, the terminal device can transmit the CG-PUSCH through the first uplink pre-configured resource by sharing the second COT; or if the terminal device does not receive a downlink signal from the base station in the second COT, the terminal device can initiate the first COT and transmit the CG-PUSCH through the first uplink pre-configured resource. This configuration can provide a higher channel access probability for the uplink transmission of the terminal device, which is conducive to supporting Ultra-Reliable and Low Latency Communication (URLLC) services.

[0239] Embodiment 2, as Figure 7 As shown, the terminal device determines a first FFP and a second FFP, the first FFP is used for the terminal device to initiate channel occupation, the first FFP includes a first COT and a first IP, and the second FFP is used for the network device to initiate channel occupation, the second FFP includes a second COT and a second IP. Among them, the frequency domain resources corresponding to the first FFP and the frequency domain resources corresponding to the second FFP completely overlap in the frequency domain. The FFP corresponding to the first FFP and the FFP corresponding to the second FFP have the same FFP length, and the second offset value between the FFP corresponding to the first FFP and the FFP corresponding to the second FFP is a negative offset value. The time domain resources occupied by the first COT include the time domain resources occupied by the second COT, and the time domain resources occupied by the second IP include the time domain resources occupied by the first IP.

[0240] In Embodiment 2, Case 1: the terminal device determines to transmit a first uplink channel or signal on a first pre-configured resource.

[0241] In some possible implementations, the terminal device initiates a first COT, or in other words, the terminal device performs channel detection at the LBT position of the first FFP. If the terminal device successfully performs channel detection at the LBT position of the first FFP, the terminal device transmits the first uplink channel or signal through the first pre-configured resource. Furthermore, in the case where the terminal device transmits the first uplink channel or uplink signal through the first pre-configured resource, the terminal device can also share the resources in the first COT with the network device. Accordingly, the network device can cancel the initiation of the second COT, or the network device can perform channel detection by sharing the first COT, and perform downlink transmission through the resources in the first COT or the second COT after the channel detection is successful, or do not perform downlink transmission through the resources in the first COT or the second COT after the channel detection fails. Among them, the channel detection method when the network device shares the COT can be the same or similar to the channel detection method when the terminal device shares the COT, and will not be repeated.

[0242] In some possible implementations, the terminal device initiates a first COT, or in other words, the terminal device performs channel detection at the LBT position of the first FFP. If the terminal device fails to perform channel detection at the LBT position of the first FFP, the terminal device does not transmit the first uplink channel or uplink signal through the first preconfigured resource. The network device can initiate a second COT, or in other words, the network device performs channel detection at the LBT position of the second FFP, and performs downlink transmission through the resources in the second COT after the channel detection is successful. Furthermore, the network device can share the resources in the second COT in the second FFP with the terminal device.

[0243] In Embodiment 2, Case 2: the terminal device determines that there is no unicast data to be transmitted on the first preconfigured resource.

[0244] In some possible implementations, the terminal device initiates a first COT, or in other words, the terminal device performs channel detection at the LBT position of the first FFP. If the terminal device successfully performs channel detection at the LBT position of the first FFP, the terminal device transmits first information through the first preconfigured resources, wherein the first information is used to instruct the terminal device to share the resources in the first COT with the network device. Accordingly, the network device may cancel the initiation of the second COT, or the network device may perform channel detection by sharing the first COT, and perform downlink transmission through the resources in the first COT or the second COT after the channel detection is successful, or not perform downlink transmission through the resources in the first COT or the second COT after the channel detection fails. Among them, the channel detection method when the network device shares the COT may be the same or similar to the channel detection method when the terminal device shares the COT, and will not be repeated.

[0245] In some possible implementations, the terminal device cancels the initiation of the first COT, or the terminal device initiates the first COT but fails to perform channel detection at the LBT position of the first FFP. The network device can initiate the second COT, or the network device performs channel detection at the LBT position of the second FFP, and performs downlink transmission through the resources in the second COT after the channel detection is successful. Further, the network device can share the resources in the second COT in the second FFP with the terminal device.

[0246] In one implementation, in Example 2, the terminal device initiates a first COT in at least one of the following situations:

[0247] The terminal device is configured with the COT shared energy detection threshold (e.g., ul-toDL-COT-SharingED-Threshold-r16);

[0248] The terminal device receives a symbol included in the first uplink pre-configured resource scheduled in a DCI format for uplink transmission;

[0249] The symbols included in the first uplink pre-configured resource are indicated as uplink symbols by a higher layer parameter (e.g., tdd-UL-DL-ConfigurationCommon or tdd-UL-DL-ConfigurationDedicated);

[0250] The symbols included in the first uplink pre-configured resource are indicated as flexible symbols by a higher layer parameter (e.g., tdd-UL-DL-ConfigurationCommon or tdd-UL-DL-ConfigurationDedicated) and the terminal device is not configured to monitor DCI format 2_0;

[0251] The terminal device determines, according to the detected DCI format 2_0, that a symbol included in the first uplink pre-configured resource is indicated as an uplink symbol;

[0252] The symbols included in the first uplink pre-configuration resource are indicated as flexible symbols by high-level parameters (e.g., tdd-UL-DL-ConfigurationCommon or tdd-UL-DL-ConfigurationDedicated), the terminal device is configured to monitor DCI format 2_0, the terminal device is configured to enable uplink pre-configuration parameters (e.g., EnableConfiguredUL-r16) and the terminal device does not detect DCI format 2_0.

[0253] In one implementation, in Example 2, the terminal device cancels initiation of the first COT in at least one of the following situations:

[0254] The terminal device is not configured with the COT shared energy detection threshold (for example, ul-toDL-COT-SharingED-Threshold-r16);

[0255] The symbols included in the first uplink pre-configured resource are indicated as downlink symbols by a higher layer parameter (e.g., tdd-UL-DL-ConfigurationCommon or tdd-UL-DL-ConfigurationDedicated);

[0256] The terminal device receives at least one symbol included in the symbols of the first uplink pre-configured resource scheduled in the DCI format for downlink transmission;

[0257] The terminal device determines, according to the detected DCI format 2_0, that a symbol included in the first uplink pre-configured resource is indicated as a downlink symbol or a flexible symbol;

[0258] The symbols included in the first uplink pre-configuration resource are indicated as flexible symbols by high-level parameters (e.g., tdd-UL-DL-ConfigurationCommon or tdd-UL-DL-ConfigurationDedicated), the terminal device is configured to monitor DCI format 2_0, the terminal device is not configured to enable uplink pre-configuration parameters (e.g., EnableConfiguredUL-r16) and the terminal device does not detect DCI format 2_0.

[0259] In Embodiment 2, the terminal device initiates the first COT and can share the COT with the base station for downlink transmission before the start of the second COT or at the start of the first COT. If the base station receives a sharing indication from the terminal device on the first pre-configured resource, the base station can perform downlink transmission through the first COT or the second COT; or if the base station does not receive a sharing indication from the terminal device on the first pre-configured resource, the base station can initiate the second COT and transmit through the second COT. This configuration can provide a higher channel access probability for downlink transmission of the base station.

[0260] Combination of the above Figures 3 to 7 , describes in detail the terminal side embodiment of the present application, and the following is combined with Figure 8 , the network side embodiment of the present application is described in detail. It should be understood that the network side embodiment and the terminal side embodiment correspond to each other, and similar descriptions can refer to the terminal side embodiment.

[0261] Figure 8 is a schematic flow chart of a wireless communication method 300 according to an embodiment of the present application, such as Figure 8 As shown, the method 300 may include at least part of the following contents:

[0262] S310, the network device sends at least one configuration information to the terminal device, and the at least one configuration information is used by the terminal device to determine the first period channel occupancy, and the first period channel occupancy is used for the channel occupancy initiated by the terminal device. The first period channel occupancy includes the first channel occupancy, wherein the first channel occupancy is the channel occupancy initiated by the terminal device, or the first channel occupancy is the channel occupancy that the terminal device determines whether to initiate.

[0263] In one embodiment, the at least one configuration information includes first configuration information, wherein:

[0264] The first configuration information is used to indicate at least one of the following:

[0265] The length of the first cycle channel occupancy, the period of the first cycle channel occupancy, the COT length in the first cycle channel occupancy, the maximum COT length in the first cycle channel occupancy, the IP length in the first cycle channel occupancy, and the minimum IP length in the first cycle channel occupancy.

[0266] In one embodiment, the at least one configuration information includes second configuration information, wherein:

[0267] The second configuration information is used to indicate the period of second period channel occupancy or the length of the second period channel occupancy, the period of the first period channel occupancy is the same as the period of the second period channel occupancy, or the length of the first period channel occupancy is the same as the length of the second period channel occupancy.

[0268] In one implementation, the offset value between the first period channel occupancy and the second period channel occupancy is preset.

[0269] In one implementation, the at least one configuration information includes third configuration information, wherein the offset value between the first period channel occupancy and the second period channel occupancy is determined according to the third configuration information.

[0270] In one implementation, the offset value between the first period channel occupancy and the second period channel occupancy is a positive offset value; or,

[0271] The offset value between the first period channel occupancy and the second period channel occupancy is a negative offset value; or,

[0272] The offset value between the first period channel occupancy and the second period channel occupancy is 0.

[0273] In one implementation, the second periodic channel occupancy is for channel occupancy initiated by a network device, and the second periodic channel occupancy includes the second channel occupancy.

[0274] In one embodiment, the frequency domain resources corresponding to the first periodic channel and the frequency domain resources corresponding to the second periodic channel partially overlap in the frequency domain; or, the frequency domain resources corresponding to the first periodic channel and the frequency domain resources corresponding to the second periodic channel completely overlap in the frequency domain.

[0275] In one implementation, the first periodic channel occupancy includes a first channel occupancy, and the first channel occupancy includes a first COT and a first IP, and the second periodic channel includes a second channel occupancy, and the second channel occupancy includes a second COT and a second IP;

[0276] The time domain position relationship between the first channel occupancy in the first period channel occupancy and the second channel occupancy in the second period channel occupancy includes at least one of the following:

[0277] The second channel occupancy includes the first channel occupancy;

[0278] The second COT includes the first channel occupancy;

[0279] The second IP includes the occupation of the first channel;

[0280] The first channel occupancy includes the second channel occupancy;

[0281] The first COT includes the second channel occupancy;

[0282] The first IP includes the occupation of the second channel;

[0283] The first channel occupancy and the second channel occupancy at least partially overlap;

[0284] The first COT and the second COT at least partially overlap;

[0285] The first IP and the second IP at least partially overlap;

[0286] The second COT includes the first COT, and the first IP includes the second IP;

[0287] The first COT includes the second COT, and the second IP includes the first IP;

[0288] The first channel occupancy includes multiple channel occupancy in the second period channel occupancy;

[0289] The second channel occupancy includes multiple channel occupancy in the first period channel occupancy.

[0290] In one embodiment, the at least one configuration information includes fourth configuration information, wherein:

[0291] The fourth configuration information is used to indicate a period of the first uplink pre-configured resource, and a period occupied by the first periodic channel is the same as the period of the first uplink pre-configured resource.

[0292] In one implementation, the first resource on the first time slot occupied by the first channel is used to transmit the first uplink channel and / or uplink signal, wherein the starting position of the first resource is the same as the starting position of the first channel.

[0293] In one implementation, the first resource includes a first uplink preconfigured resource; or,

[0294] The first resource includes an uplink resource indicated by a first uplink grant.

[0295] In one implementation, the first uplink channel and / or uplink signal includes at least one of the following:

[0296] PUCCH, PRACH, PUSCH, channel SRS.

[0297] In one implementation, the network device determines whether to share resources in the first COT occupied by the first channel obtained by the terminal device according to the received first uplink channel and / or signal.

[0298] In one implementation, the first periodic channel occupancy is a periodic channel occupancy corresponding to a periodic channel occupancy configured for the terminal device; or, the first periodic channel occupancy is a periodic channel occupancy among a plurality of periodic channel occupancies configured for the terminal device.

[0299] Therefore, in an embodiment of the present application, after the terminal device determines the occupation of the first channel in the first cycle channel occupancy, the first channel occupation may be initiated or not, thereby avoiding conflicts between the COT initiated by the network device and the COT initiated by the terminal device on the unlicensed spectrum, that is, the COT initiated by the network device and the COT initiated by the terminal device on the unlicensed spectrum can reasonably coexist, thereby improving communication performance.

[0300] Combination of the above Figures 3 to 8 , describes in detail the method embodiment of the present application, and the following is combined with Figures 9 to 13 , the device embodiments of the present application are described in detail. It should be understood that the device embodiments and the method embodiments correspond to each other, and similar descriptions can refer to the method embodiments.

[0301] Fig. 9 FIG. 4 shows a schematic block diagram of a terminal device 400 according to an embodiment of the present application. Fig. 9 As shown, the terminal device 400 includes:

[0302] The processing unit 410 is used to determine a first period channel occupancy, where the first period channel occupancy is used for the channel occupancy initiated by the terminal device 400, and the first period channel occupancy includes the first channel occupancy;

[0303] The processing unit 410 is further configured to initiate occupation of the first channel, or determine whether to initiate occupation of the first channel.

[0304] In one implementation, the processing unit 410 is specifically configured to:

[0305] The first period channel occupancy is determined according to the first configuration information, wherein:

[0306] The first configuration information is used to indicate at least one of the following:

[0307] The length of the first cycle channel occupancy, the period of the first cycle channel occupancy, the channel occupancy time COT length in the first cycle channel occupancy, the maximum COT length in the first cycle channel occupancy, the idle period IP length in the first cycle channel occupancy, and the minimum IP length in the first cycle channel occupancy.

[0308] In one implementation, the processing unit 410 is specifically configured to:

[0309] The first period channel occupancy is determined according to the second period channel occupancy, wherein:

[0310] The period of the first period channel occupancy is the same as the period of the second period channel occupancy, or the length of the first period channel occupancy is the same as the length of the second period channel occupancy.

[0311] In one implementation, the processing unit 410 is specifically configured to:

[0312] The first period channel occupancy is determined according to the second configuration information, wherein:

[0313] The second configuration information is used to indicate the period of second period channel occupancy or the length of the second period channel occupancy, the period of the first period channel occupancy is the same as the period of the second period channel occupancy, or the length of the first period channel occupancy is the same as the length of the second period channel occupancy.

[0314] In one implementation, the offset value between the first period channel occupancy and the second period channel occupancy is preset.

[0315] In one implementation, the offset value between the first period channel occupancy and the second period channel occupancy is determined according to third configuration information.

[0316] In one implementation, the offset value between the first period channel occupancy and the second period channel occupancy is a positive offset value; or,

[0317] The offset value between the first period channel occupancy and the second period channel occupancy is a negative offset value; or,

[0318] The offset value between the first period channel occupancy and the second period channel occupancy is 0.

[0319] In one implementation, the second periodic channel occupancy is for channel occupancy initiated by a network device, and the second periodic channel occupancy includes the second channel occupancy.

[0320] In one implementation, the frequency domain resources corresponding to the first periodic channel occupation and the frequency domain resources corresponding to the second periodic channel occupation partially overlap in the frequency domain; or,

[0321] The frequency domain resources corresponding to the first periodic channel occupancy and the frequency domain resources corresponding to the second periodic channel occupancy completely overlap in the frequency domain.

[0322] In one implementation, the first periodic channel occupancy includes a first channel occupancy, and the first channel occupancy includes a first COT and a first IP, and the second periodic channel includes a second channel occupancy, and the second channel occupancy includes a second COT and a second IP;

[0323] The time domain position relationship between the first channel occupancy in the first period channel occupancy and the second channel occupancy in the second period channel occupancy includes at least one of the following:

[0324] The second channel occupancy includes the first channel occupancy;

[0325] The second COT includes the first channel occupancy;

[0326] The second IP includes the occupation of the first channel;

[0327] The first channel occupancy includes the second channel occupancy;

[0328] The first COT includes the second channel occupancy;

[0329] The first IP includes the occupation of the second channel;

[0330] The first channel occupancy and the second channel occupancy at least partially overlap;

[0331] The first COT and the second COT at least partially overlap;

[0332] The first IP and the second IP at least partially overlap;

[0333] The second COT includes the first COT, and the first IP includes the second IP;

[0334] The first COT includes the second COT, and the second IP includes the first IP;

[0335] The first channel occupancy includes multiple channel occupancy in the second period channel occupancy;

[0336] The second channel occupancy includes multiple channel occupancy in the first period channel occupancy.

[0337] In one implementation, the processing unit 410 is specifically configured to:

[0338] The first period channel occupancy is determined according to the fourth configuration information, wherein:

[0339] The fourth configuration information is used to indicate a period of the first uplink pre-configured resource, and a period occupied by the first periodic channel is the same as the period of the first uplink pre-configured resource.

[0340] In one implementation, the first resource on the first time slot occupied by the first channel is used to transmit the first uplink channel and / or uplink signal, wherein the starting position of the first resource is the same as the starting position of the first channel.

[0341] In one implementation, the first resource includes a first uplink preconfigured resource; or,

[0342] The first resource includes an uplink resource indicated by a first uplink grant.

[0343] In one implementation, the first uplink channel and / or uplink signal includes at least one of the following:

[0344] Physical uplink control channel PUCCH, physical random access channel PRACH, physical uplink shared channel PUSCH, and channel sounding reference signal SRS.

[0345] In one implementation, the processing unit 410 determines whether to initiate the first channel occupation, including one of the following:

[0346] The processing unit 410 always determines to initiate the first channel occupation;

[0347] The processing unit 410 determines whether to initiate the first channel occupation according to the first condition;

[0348] If the terminal device is configured with a COT shared energy detection threshold, the processing unit 410 determines to initiate the first channel occupation;

[0349] If the terminal device is not configured with the COT shared energy detection threshold, the processing unit 410 determines not to initiate the first channel occupation;

[0350] If the terminal device is configured with the COT shared energy detection threshold, the processing unit 410 determines whether to initiate the first channel occupation according to the first condition;

[0351] If the terminal device is not configured with the COT shared energy detection threshold, the processing unit 410 determines whether to initiate the first channel occupation according to the first condition.

[0352] In one implementation, the processing unit 410 determines whether to initiate the first channel occupation according to the first condition, including one of the following:

[0353] If the terminal device receives the first downlink channel and / or downlink signal sent by the network device, the processing unit 410 determines not to initiate occupation of the first channel;

[0354] If the terminal device does not receive the first downlink channel and / or downlink signal sent by the network device, the processing unit 410 determines to initiate occupation of the first channel;

[0355] If the terminal device determines that the first resource on the first time slot in the first channel occupation is not available for transmitting the first uplink channel and / or uplink signal, the processing unit 410 determines not to initiate the first channel occupation;

[0356] If the terminal device determines that the first resource on the first time slot in the first channel occupation can be used to transmit the first uplink channel and / or uplink signal, the processing unit 410 determines to initiate the first channel occupation.

[0357] In one implementation, the first resource on the first time slot in the first channel occupation includes a first uplink preconfigured resource, and the processing unit 410 determines whether to initiate the first channel occupation according to the first condition, including one of the following:

[0358] In a case where there is no uplink channel or uplink signal to be transmitted on the first uplink pre-configured resource, the processing unit 410 determines not to initiate occupation of the first channel;

[0359] In the case where there is no uplink channel or uplink signal to be transmitted on the first uplink pre-configured resource, if the terminal device does not receive the first downlink channel and / or downlink signal sent by the network device, the processing unit 410 determines to initiate occupation of the first channel;

[0360] In the case that there is no uplink channel or uplink signal to be transmitted on the first uplink pre-configured resource, if the terminal device determines that the first resource on the first time slot in the first channel occupation can be used to transmit the first uplink channel and / or uplink signal, the processing unit 410 determines to initiate the first channel occupation.

[0361] In one implementation, the terminal device determines that the first resource on the first time slot occupied by the first channel is not available for transmitting the first uplink channel and / or the uplink signal, including at least one of the following:

[0362] The terminal device determines, according to the first indication information sent by the network device, that the first resource on the first time slot occupied by the first channel cannot be used to transmit the first uplink channel and / or uplink signal;

[0363] The symbols included in the first resource are indicated as downlink symbols;

[0364] The terminal device determines, according to the first downlink control information DCI format sent by the network device, that at least one symbol among the symbols included in the first resource is used to transmit a downlink channel and / or a downlink signal;

[0365] The first resource includes a first uplink pre-configured resource, and the terminal device determines, according to the detected DCI format 2_0, that a symbol included in the first uplink pre-configured resource is indicated as a downlink symbol or a flexible symbol;

[0366] The first resource includes a first uplink pre-configuration resource, the symbols included in the first uplink pre-configuration resource are indicated as flexible symbols, the terminal device is configured to monitor DCI format 2_0, the terminal device is not configured to enable uplink pre-configuration parameters and the terminal device does not detect DCI format 2_0.

[0367] In one implementation, the terminal device determines that the first resource on the first time slot occupied by the first channel can be used to transmit the first uplink channel and / or uplink signal, including at least one of the following:

[0368] The terminal device determines, according to the first indication information sent by the network device, that the first resource on the first time slot occupied by the first channel can be used to transmit the first uplink channel and / or uplink signal;

[0369] The terminal device determines, according to the first uplink authorization sent by the network device, that the first resource on the first time slot occupied by the first channel can be used to transmit the first uplink channel and / or uplink signal, wherein the first uplink authorization includes one of an uplink authorization DCI format, a random access response uplink authorization, a fallback random access response uplink authorization, and a successful random access response;

[0370] The symbols included in the first resource are indicated as uplink symbols;

[0371] The first resource includes a first uplink pre-configured resource, a symbol included in the first uplink pre-configured resource is indicated as a flexible symbol and the terminal device is not configured to monitor DCI format 2_0;

[0372] The first resource includes a first uplink pre-configured resource, and the terminal device determines, according to the detected DCI format 2_0, that a symbol included in the first uplink pre-configured resource is indicated as an uplink symbol;

[0373] The first resource includes a first uplink pre-configuration resource, a symbol included in the first uplink pre-configuration resource is indicated as a flexible symbol, the terminal device is configured to monitor DCI format 2_0, the terminal device is configured to enable uplink pre-configuration parameters and the terminal device does not detect DCI format 2_0.

[0374] In one implementation, the first downlink channel and / or downlink signal includes at least one of the following:

[0375] Physical downlink control channel PDCCH, physical downlink shared channel PDSCH, synchronization signal / physical broadcast channel SS / PBCH, channel state information reference signal CSI-RS, demodulation reference signal DMRS, phase tracking reference signal PT-RS, tracking reference signal TRS.

[0376] In one implementation, the terminal device receives a first downlink channel and / or a downlink signal sent by a network device, including: the terminal device receives the first downlink channel and / or the downlink signal sent by the network device within a second COT occupied by a second channel; and / or,

[0377] The terminal device fails to receive the first downlink channel and / or downlink signal sent by the network device, including: the terminal device fails to receive the first downlink channel and / or downlink signal sent by the network device within the second COT occupied by the second channel;

[0378] The second channel occupancy is a channel occupancy initiated by a network device, and the time domain resources in the second COT in the second channel occupancy include the time domain resources in the first COT in the first channel occupancy, or, the time domain resources in the first COT include the time domain resources in the second COT, or, the first COT and the second COT at least partially overlap in the time domain.

[0379] In one implementation, the processing unit 410 is further configured to:

[0380] If the terminal device determines to initiate the occupation of the first channel, the first channel occupation is initiated; or,

[0381] If the terminal device determines not to initiate the occupation of the first channel, cancel initiating the occupation of the first channel; or,

[0382] If the terminal device determines not to initiate occupation of the first channel, channel detection for evaluating availability of occupation of the first channel is not performed.

[0383] In one implementation, the terminal device initiates the first channel occupation, including:

[0384] The terminal device performs a channel detection to evaluate the availability of the first channel for occupancy.

[0385] In one implementation, if the terminal device initiates the first channel occupation, the processing unit 410 is further configured to share the resources in the first COT obtained in the first channel occupation with the network device.

[0386] In one implementation, the first periodic channel occupancy is a periodic channel occupancy corresponding to a periodic channel occupancy configured for the terminal device; or, the first periodic channel occupancy is a periodic channel occupancy among a plurality of periodic channel occupancies configured for the terminal device.

[0387] In one implementation, in some embodiments, the processing unit may be one or more processors.

[0388] It should be understood that the terminal device 400 according to the embodiment of the present application may correspond to the terminal device in the method embodiment of the present application, and the above and other operations and / or functions of each unit in the terminal device 400 are respectively to implement Figure 3 For the sake of brevity, the corresponding process of the terminal device in the method 200 is not repeated here.

[0389] Fig.10 FIG. 5 shows a schematic block diagram of a network device 500 according to an embodiment of the present application. Fig.10 As shown, the network device 500 includes:

[0390] The communication unit 510 sends at least one configuration information to the terminal device, and the at least one configuration information is used by the terminal device to determine a first-cycle channel occupancy, and the first-cycle channel occupancy is used for the channel occupancy initiated by the terminal device. The first-cycle channel occupancy includes a first channel occupancy, wherein the first channel occupancy is the channel occupancy initiated by the terminal device, or the first channel occupancy is the channel occupancy that the terminal device determines whether to initiate.

[0391] In one embodiment, the at least one configuration information includes first configuration information, wherein:

[0392] The first configuration information is used to indicate at least one of the following:

[0393] The length of the first cycle channel occupancy, the period of the first cycle channel occupancy, the channel occupancy time COT length in the first cycle channel occupancy, the maximum COT length in the first cycle channel occupancy, the idle period IP length in the first cycle channel occupancy, and the minimum IP length in the first cycle channel occupancy.

[0394] In one embodiment, the at least one configuration information includes second configuration information, wherein:

[0395] The second configuration information is used to indicate the period of second period channel occupancy or the length of the second period channel occupancy, the period of the first period channel occupancy is the same as the period of the second period channel occupancy, or the length of the first period channel occupancy is the same as the length of the second period channel occupancy.

[0396] In one implementation, the offset value between the first period channel occupancy and the second period channel occupancy is preset.

[0397] In one implementation, the at least one configuration information includes third configuration information, wherein the offset value between the first period channel occupancy and the second period channel occupancy is determined according to the third configuration information.

[0398] In one implementation, the offset value between the first period channel occupancy and the second period channel occupancy is a positive offset value; or,

[0399] The offset value between the first period channel occupancy and the second period channel occupancy is a negative offset value; or,

[0400] The offset value between the first period channel occupancy and the second period channel occupancy is 0.

[0401] In one implementation, the second periodic channel occupancy is for channel occupancy initiated by a network device, and the second periodic channel occupancy includes the second channel occupancy.

[0402] In one implementation, the frequency domain resources corresponding to the first periodic channel occupation and the frequency domain resources corresponding to the second periodic channel occupation partially overlap in the frequency domain; or,

[0403] The frequency domain resources corresponding to the first periodic channel occupancy and the frequency domain resources corresponding to the second periodic channel occupancy completely overlap in the frequency domain.

[0404] In one implementation, the first periodic channel occupancy includes a first channel occupancy, and the first channel occupancy includes a first COT and a first IP, and the second periodic channel includes a second channel occupancy, and the second channel occupancy includes a second COT and a second IP;

[0405] The time domain position relationship between the first channel occupancy in the first period channel occupancy and the second channel occupancy in the second period channel occupancy includes at least one of the following:

[0406] The second channel occupancy includes the first channel occupancy;

[0407] The second COT includes the first channel occupancy;

[0408] The second IP includes the occupation of the first channel;

[0409] The first channel occupancy includes the second channel occupancy;

[0410] The first COT includes the second channel occupancy;

[0411] The first IP includes the occupation of the second channel;

[0412] The first channel occupancy and the second channel occupancy at least partially overlap;

[0413] The first COT and the second COT at least partially overlap;

[0414] The first IP and the second IP at least partially overlap;

[0415] The second COT includes the first COT, and the first IP includes the second IP;

[0416] The first COT includes the second COT, and the second IP includes the first IP;

[0417] The first channel occupancy includes multiple channel occupancy in the second period channel occupancy;

[0418] The second channel occupancy includes multiple channel occupancy in the first period channel occupancy.

[0419] In one embodiment, the at least one configuration information includes fourth configuration information, wherein:

[0420] The fourth configuration information is used to indicate a period of the first uplink pre-configured resource, and a period occupied by the first periodic channel is the same as the period of the first uplink pre-configured resource.

[0421] In one implementation, the first resource on the first time slot occupied by the first channel is used to transmit the first uplink channel and / or uplink signal, wherein the starting position of the first resource is the same as the starting position of the first channel.

[0422] In one implementation, the first resource includes a first uplink preconfigured resource; or,

[0423] The first resource includes an uplink resource indicated by a first uplink grant.

[0424] In one implementation, the first uplink channel and / or uplink signal includes at least one of the following:

[0425] Physical uplink control channel PUCCH, physical random access channel PRACH, physical uplink shared channel PUSCH, and channel sounding reference signal SRS.

[0426] In one implementation, the network device determines whether to share resources in the first COT occupied by the first channel obtained by the terminal device according to the received first uplink channel and / or signal.

[0427] In one implementation, the first periodic channel occupancy is a periodic channel occupancy corresponding to a periodic channel occupancy configured for the terminal device; or, the first periodic channel occupancy is a periodic channel occupancy among a plurality of periodic channel occupancies configured for the terminal device.

[0428] In one implementation, in some embodiments, the communication unit 510 may be a communication interface or a transceiver, or an input / output interface of a communication chip or a system on chip.

[0429] It should be understood that the network device 500 according to the embodiment of the present application may correspond to the network device in the method embodiment of the present application, and the above and other operations and / or functions of each unit in the network device 500 are respectively to implement Figure 8 For the sake of brevity, the corresponding processes of the network device in the method 300 are not repeated here.

[0430] Fig.11 It is a schematic structural diagram of a communication device 600 provided in an embodiment of the present application. Fig.11 The communication device 600 shown includes a processor 610, which can call and run a computer program from a memory to implement the method in the embodiment of the present application.

[0431] In one embodiment, Fig.11 As shown, the communication device 600 may further include a memory 620. The processor 610 may call and run a computer program from the memory 620 to implement the method in the embodiment of the present application.

[0432] The memory 620 may be a separate device independent of the processor 610 , or may be integrated into the processor 610 .

[0433] In one embodiment, Fig.11As shown, the communication device 600 may further include a transceiver 630, and the processor 610 may control the transceiver 630 to communicate with other devices, specifically, may send information or data to other devices, or receive information or data sent by other devices.

[0434] The transceiver 630 may include a transmitter and a receiver. The transceiver 630 may further include an antenna, and the number of the antennas may be one or more.

[0435] In one implementation, the communication device 600 may specifically be a network device of an embodiment of the present application, and the communication device 600 may implement the corresponding processes implemented by the network device in each method of the embodiment of the present application, which will not be described in detail here for the sake of brevity.

[0436] In one embodiment, the communication device 600 may specifically be a mobile terminal / terminal device of an embodiment of the present application, and the communication device 600 may implement the corresponding processes implemented by the mobile terminal / terminal device in each method of the embodiment of the present application, which will not be described in detail here for the sake of brevity.

[0437] Fig.12 It is a schematic structural diagram of the device of an embodiment of the present application. Fig.12 The device 700 shown includes a processor 710, which can call and run a computer program from a memory to implement the method in the embodiment of the present application.

[0438] In one embodiment, Fig.12 As shown, the apparatus 700 may further include a memory 720. The processor 710 may call and run a computer program from the memory 720 to implement the method in the embodiment of the present application.

[0439] The memory 720 may be a separate device independent of the processor 710 , or may be integrated into the processor 710 .

[0440] In one implementation, the apparatus 700 may further include an input interface 730. The processor 710 may control the input interface 730 to communicate with other devices or chips, and specifically, may obtain information or data sent by other devices or chips.

[0441] In one implementation, the apparatus 700 may further include an output interface 740. The processor 710 may control the output interface 740 to communicate with other devices or chips, and specifically, may output information or data to other devices or chips.

[0442] In one implementation, the device can be applied to the network equipment in the embodiments of the present application, and the device can implement the corresponding processes implemented by the network equipment in each method of the embodiments of the present application. For the sake of brevity, they are not repeated here.

[0443] In one embodiment, the device can be applied to the mobile terminal / terminal device in the embodiments of the present application, and the device can implement the corresponding processes implemented by the mobile terminal / terminal device in the various methods of the embodiments of the present application. For the sake of brevity, they are not repeated here.

[0444] The device mentioned in the embodiments of the present application may also be a chip, for example, a system-on-chip, a system-on-chip, a chip system, or a system-on-chip chip.

[0445] Fig.13 8 is a schematic block diagram of a communication system 800 provided in an embodiment of the present application. Fig.13 As shown, the communication system 800 includes a terminal device 810 and a network device 820 .

[0446] Among them, the terminal device 810 can be used to implement the corresponding functions implemented by the terminal device in the above method, and the network device 820 can be used to implement the corresponding functions implemented by the network device in the above method. For the sake of brevity, they are not repeated here.

[0447] It should be understood that the processor of the embodiment of the present application may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method embodiment can be completed by the hardware integrated logic circuit or software instructions in the processor. The above processor can be a general processor, a digital signal processor (Digital Signal Processor, DSP), an application-specific integrated circuit (Application Specific Integrated Circuit, ASIC), a field programmable gate array (Field Programmable Gate Array, FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components. The methods, steps and logic block diagrams disclosed in the embodiments of the present application can be implemented or executed. The general processor can be a microprocessor or the processor can also be any conventional processor. The steps of the method disclosed in the embodiment of the present application can be directly embodied as a hardware decoding processor to perform, or the hardware and software modules in the decoding processor are combined and performed. The software module can be located in a random access memory, a flash memory, a read-only memory, a programmable read-only memory or an electrically erasable programmable memory, a register, and other mature storage media in the art. The storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.

[0448] It can be understood that the memory in the embodiments of the present application can be a volatile memory or a non-volatile memory, or can include both volatile and non-volatile memories. Among them, the non-volatile memory can be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory can be a random access memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct RAM bus random access memory (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0449] It should be understood that the above-mentioned memory is exemplary but not restrictive. For example, the memory in the embodiments of the present application may also be static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct RAM bus random access memory (DR RAM), etc. That is to say, the memory in the embodiments of the present application is intended to include but not limited to these and any other suitable types of memory.

[0450] An embodiment of the present application also provides a computer-readable storage medium for storing a computer program.

[0451] Optionally, the computer-readable storage medium can be applied to the network device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the network device in the various methods of the embodiments of the present application. For the sake of brevity, they are not repeated here.

[0452] In one embodiment, the computer-readable storage medium can be applied to the mobile terminal / terminal device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the mobile terminal / terminal device in the various methods of the embodiments of the present application. For the sake of brevity, they are not repeated here.

[0453] An embodiment of the present application also provides a computer program product, including computer program instructions.

[0454] Optionally, the computer program product can be applied to the network device in the embodiments of the present application, and the computer program instructions enable the computer to execute the corresponding processes implemented by the network device in the various methods of the embodiments of the present application. For the sake of brevity, they are not repeated here.

[0455] In one embodiment, the computer program product can be applied to the mobile terminal / terminal device in the embodiments of the present application, and the computer program instructions enable the computer to execute the corresponding processes implemented by the mobile terminal / terminal device in the various methods of the embodiments of the present application. For the sake of brevity, they are not repeated here.

[0456] The embodiment of the present application also provides a computer program.

[0457] Optionally, the computer program can be applied to the network device in the embodiments of the present application. When the computer program runs on a computer, the computer executes the corresponding processes implemented by the network device in the various methods in the embodiments of the present application. For the sake of brevity, they are not described here.

[0458] In one embodiment, the computer program can be applied to the mobile terminal / terminal device in the embodiments of the present application. When the computer program is run on a computer, the computer executes the corresponding processes implemented by the mobile terminal / terminal device in the various methods of the embodiments of the present application. For the sake of brevity, they are not repeated here.

[0459] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0460] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0461] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0462] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0463] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0464] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. In view of such an understanding, the technical solution of the present application can be embodied in the form of a software product in essence or in other words, the part that contributes to the prior art or the part of the technical solution. The computer software product is stored in a storage medium, including several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0465] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A wireless communication method, characterized in that: include: The terminal device determines a first periodic channel occupancy, where the first periodic channel occupancy is used for channel occupancy initiated by the terminal device, and the first periodic channel occupancy includes a first channel occupancy; The terminal device initiates occupation of the first channel, or the terminal device determines whether to initiate occupation of the first channel.

2. The method according to claim 1, characterized in that The terminal device determines the first period channel occupancy, including: The terminal device determines the first periodic channel occupancy according to the first configuration information, wherein: The first configuration information is used to indicate at least one of the following: The length of the first cycle channel occupancy, the period of the first cycle channel occupancy, the channel occupancy time COT length in the first cycle channel occupancy, the maximum COT length in the first cycle channel occupancy, the idle period IP length in the first cycle channel occupancy, and the minimum IP length in the first cycle channel occupancy.

3. The method according to claim 1 or 2, characterized in that The first resource on the first time slot occupied by the first channel is used to transmit a first uplink channel and / or an uplink signal, wherein a starting position of the first resource is the same as a starting position of the first channel.

4. The method according to claim 3, characterized in that The first resource includes a first uplink pre-configured resource; or, The first resource includes an uplink resource indicated by a first uplink grant.

5. The method according to any one of claims 1 to 4, characterized in that The terminal device determines whether to initiate occupation of the first channel, including one of the following: The terminal device always determines to initiate occupation of the first channel; The terminal device determines whether to initiate occupation of the first channel according to the first condition; If the terminal device is configured with a COT shared energy detection threshold, the terminal device determines to initiate occupation of the first channel; If the terminal device is not configured with the COT shared energy detection threshold, the terminal device determines not to initiate occupation of the first channel; If the terminal device is configured with the COT shared energy detection threshold, the terminal device determines whether to initiate occupation of the first channel according to the first condition; If the terminal device is not configured with the COT shared energy detection threshold, the terminal device determines whether to initiate the first channel occupation according to the first condition.

6. The method according to claim 5, characterized in that The terminal device determines whether to initiate occupation of the first channel according to the first condition, including one of the following: If the terminal device receives the first downlink channel and / or downlink signal sent by the network device, the terminal device determines not to initiate occupation of the first channel; If the terminal device does not receive the first downlink channel and / or downlink signal sent by the network device, the terminal device determines to initiate occupation of the first channel; If the terminal device determines that the first resource on the first time slot in the first channel occupation is not available for transmitting the first uplink channel and / or uplink signal, the terminal device determines not to initiate the first channel occupation; If the terminal device determines that the first resource on the first time slot in the first channel occupation can be used to transmit the first uplink channel and / or uplink signal, the terminal device determines to initiate the first channel occupation.

7. The method according to claim 6, characterized in that The terminal device receives the first downlink channel and / or downlink signal sent by the network device, including: the terminal device receives the first downlink channel and / or downlink signal sent by the network device within the second COT occupied by the second channel; and / or, The terminal device fails to receive the first downlink channel and / or downlink signal sent by the network device, including: the terminal device fails to receive the first downlink channel and / or downlink signal sent by the network device within the second COT occupied by the second channel; The second channel occupancy is a channel occupancy initiated by a network device, and the time domain resources in the second COT in the second channel occupancy include the time domain resources in the first COT in the first channel occupancy, or, the time domain resources in the first COT include the time domain resources in the second COT, or, the first COT and the second COT at least partially overlap in the time domain.

8. A wireless communication method, characterized in that: include: A network device sends at least one configuration information to a terminal device, wherein the at least one configuration information is used by the terminal device to determine a first period channel occupancy, wherein the first period channel occupancy is used for channel occupancy initiated by the terminal device, and the first period channel occupancy includes a first channel occupancy, wherein the first channel occupancy is the channel occupancy initiated by the terminal device, or the first channel occupancy is the channel occupancy that the terminal device determines whether to initiate.

9. A terminal device, characterized in that: include: A processor and a memory, the memory being used to store a computer program, the processor being used to call and run the computer program stored in the memory to execute the method according to any one of claims 1 to 7.

10. A network device, characterized in that: include: A processor and a memory, the memory being used to store a computer program, the processor being used to call and run the computer program stored in the memory to execute the method as claimed in claim 8.

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