Channel occupation recovery method, terminal and storage medium

Abstract

The present disclosure relates to the technical field of communications, and in particular to a channel occupation recovery method, a terminal and a storage medium. The channel occupation recovery method comprises: performing a first channel access process within a channel occupation time corresponding to a first channel, wherein the first channel access process is a channel occupation recovery process of a first terminal for the first channel; and performing a first transmission within the channel occupation time, wherein a first channel access priority level corresponding to the first transmission is not lower than a second channel access priority level corresponding to the first channel, and the second channel access priority level is a channel access priority level corresponding to a second transmission performed when the first terminal initiates channel occupation of the first channel. Therefore, the transmission performed during channel occupation recovery complies with restrictions of regulations.

Description

Channel occupancy recovery method, terminal and storage medium Technical Field

[0001] The present disclosure relates to the field of communication technologies, and in particular to a channel occupancy recovery method, a terminal, and a storage medium. Background Art

[0002] In unlicensed spectrum, after a terminal initiates channel occupation, it can perform a pause-resume mechanism within the channel occupation time. During the channel occupation recovery, transmission may fail because the transmission does not meet the requirements.

[0003] Summary of the Invention

[0004] The embodiments of the present disclosure provide a channel occupancy recovery method, a terminal, and a storage medium to solve the technical problem in related technologies of transmission failure caused by transmission not meeting requirements.

[0005] According to a first aspect of an embodiment of the present disclosure, a channel occupancy recovery method is proposed, which is executed by a first terminal, and the method includes: executing a first channel access process within a channel occupancy time corresponding to a first channel; wherein the first channel access process is a channel occupancy recovery process of the first channel by the first terminal; performing a first transmission within the channel occupancy time; a first channel access priority level corresponding to the first transmission is not lower than a second channel access priority level corresponding to the first channel; and the second channel access priority level is a channel access priority level corresponding to the second transmission performed when the first terminal initiates channel occupancy of the first channel.

[0006] According to the second aspect of an embodiment of the present disclosure, a channel occupancy recovery device is proposed, which includes: a processing module for executing a first channel access process within a channel occupancy time corresponding to a first channel; wherein the first channel access process is a channel occupancy recovery process for the first channel; a transceiver module for performing a first transmission within the channel occupancy time; a first channel access priority level corresponding to the first transmission is not lower than a second channel access priority level corresponding to the first channel; and the second channel access priority level is a channel access priority level corresponding to the second transmission performed when channel occupancy of the first channel is initiated.

[0007] According to a third aspect of an embodiment of the present disclosure, a terminal is proposed, comprising: one or more processors; a memory coupled to the processor, the memory storing executable instructions, wherein when the executable instructions are executed by the processor, the network device executes the channel occupancy recovery method described in the first aspect above.

[0008] According to a fourth aspect of an embodiment of the present disclosure, a network device is proposed, comprising: one or more processors; a memory coupled to the processor, the memory storing executable instructions, wherein the executable instructions, when executed by the processor, cause the network device to execute the channel occupancy recovery method described in the first aspect above.

[0009] According to a fifth aspect of an embodiment of the present disclosure, a communication system is proposed, including a first terminal and a second terminal, wherein the first terminal is configured to implement the channel occupancy recovery method described in the first aspect.

[0010] According to a sixth aspect of an embodiment of the present disclosure, a storage medium is proposed, which stores instructions. When the instructions are executed on a communication device, the communication device executes the channel occupancy recovery method described in the first aspect above.

[0011] According to an embodiment of the present disclosure, by determining that the first channel priority level corresponding to the first transmission performed when the channel occupancy is restored is not lower than the second channel priority level corresponding to the second transmission performed when the channel occupancy is initiated, the transmission performed when the channel occupancy is restored complies with the restrictions of the rules. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0013] FIG1 is a schematic diagram showing the architecture of a communication system according to an embodiment of the present disclosure.

[0014] FIG2 is an interactive schematic diagram showing a channel occupancy recovery method according to an embodiment of the present disclosure.

[0015] FIG3A is a schematic flowchart showing a channel occupancy recovery method according to an embodiment of the present disclosure.

[0016] FIG3B is a schematic flowchart of a channel occupancy recovery method according to an embodiment of the present disclosure.

[0017] FIG3C is a schematic flowchart showing a channel occupancy recovery method according to an embodiment of the present disclosure.

[0018] FIG4 is a schematic block diagram showing the device structure of a terminal according to an embodiment of the present disclosure.

[0019] FIG5 is a schematic structural diagram of a communication device proposed in an embodiment of the present disclosure.

[0020] FIG6 is a schematic diagram of the structure of a chip proposed in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0021] Embodiments of the present disclosure provide a channel occupancy recovery method, a terminal, and a storage medium.

[0022] In the first aspect, an embodiment of the present disclosure proposes a channel occupancy recovery method, which is executed by a terminal, and the method includes: executing a first channel access process within the channel occupancy time corresponding to the first channel; wherein the first channel access process is a channel occupancy recovery process of the first terminal for the first channel; performing a first transmission within the channel occupancy time; the first channel access priority corresponding to the first transmission is not lower than the second channel access priority corresponding to the first channel; the second channel access priority is the channel access priority corresponding to the second transmission when the first terminal initiates channel occupancy of the first channel.

[0023] In the above embodiment, by determining that the first channel priority level corresponding to the first transmission performed when the channel occupancy is restored is not lower than the second channel priority level corresponding to the second transmission performed when the channel occupancy is initiated, the transmission performed when the channel occupancy is restored complies with the restrictions of the rules.

[0024] In combination with some embodiments of the first aspect, in some embodiments, a first priority value corresponding to the first channel access priority level is not greater than a second priority value corresponding to the second channel access priority level.

[0025] In combination with some embodiments of the first aspect, in some embodiments, before performing the first channel access procedure, the method further includes: performing a second channel access procedure to initiate channel occupation of the first channel; performing a second transmission on the first channel; and stopping or ending the second transmission on the first channel during the channel occupation time.

[0026] In conjunction with some embodiments of the first aspect, in some embodiments, the first channel access procedure is a Type 2A channel access procedure.

[0027] In combination with some embodiments of the first aspect. In some embodiments, before performing the first channel access process, the method further includes: sharing the first channel with a second terminal so that the second terminal performs a third transmission on the first channel; and determining that the second terminal stops the third transmission on the first channel during the channel occupancy time.

[0028] In combination with some embodiments of the first aspect, in some embodiments, the time interval between the end time of the third transmission and the start time of the first transmission is greater than or equal to 25 microseconds, and the first channel access process is a Type 2A channel access process.

[0029] In combination with some embodiments of the first aspect, in some embodiments, the time interval between the end time of the third transmission and the start time of the first transmission is equal to 16 microseconds, and the first channel access process is a Type 2B channel access process or a Type 2C channel access process.

[0030] In combination with some embodiments of the first aspect, in some embodiments, a time interval between an end time of the third transmission and a start time of the first transmission is less than 16 microseconds, and the first channel access process is a Type 2C channel access process.

[0031] In combination with some embodiments of the first aspect, in some embodiments, the first transmission, the second transmission, and the third transmission are side link SL transmissions.

[0032] In conjunction with some embodiments of the first aspect, in some embodiments, the first transmission, the second transmission, and the third transmission are transmissions on an unlicensed frequency band.

[0033] In the second aspect, a channel occupancy recovery device is proposed, which includes: a processing module for executing a first channel access process within the channel occupancy time corresponding to the first channel; wherein the first channel access process is a channel occupancy recovery process for the first channel; a transceiver module for performing a first transmission within the channel occupancy time; the first channel access priority level corresponding to the first transmission is not lower than the second channel access priority level corresponding to the first channel; the second channel access priority level is the channel access priority level corresponding to the second transmission performed when the channel occupancy of the first channel is initiated.

[0034] In the third aspect, a terminal is proposed, comprising: one or more processors; a memory coupled to the processor, wherein the memory stores executable instructions, wherein when the executable instructions are executed by the processor, the network device executes the channel occupancy recovery method described in the first aspect and the optional embodiment of the first aspect.

[0035] In a fourth aspect, an embodiment of the present disclosure proposes a communication device, which includes: one or more processors; a memory coupled to the processor, on which executable instructions are stored, wherein when the executable instructions are executed by the processor, the processor calls the executable instructions so that the communication device executes the channel occupancy recovery method described in the first aspect and the optional embodiment of the first aspect.

[0036] In a fifth aspect, an embodiment of the present disclosure proposes a communication system, which includes: a first terminal and a second terminal; wherein the first terminal is configured to execute the method described in the first aspect and the optional embodiment of the first aspect.

[0037] In a sixth aspect, an embodiment of the present disclosure proposes a storage medium, which stores instructions. When the instructions are executed on a communication device, the communication device executes the method described in the first aspect and the optional embodiment of the first aspect.

[0038] In a seventh aspect, an embodiment of the present disclosure proposes a program product. When the program product is executed by a communication device, the communication device executes the method described in the first aspect and the optional embodiment of the first aspect.

[0039] In an eighth aspect, an embodiment of the present disclosure proposes a computer program, which, when executed on a computer, enables the computer to execute the method described in the first aspect and the optional embodiment of the first aspect.

[0040] It is understandable that the above-mentioned terminals, network devices, communication devices, communication systems, storage media, program products, and computer programs are all used to execute the methods proposed in the embodiments of the present disclosure. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects of the corresponding methods and will not be repeated here.

[0041] The present disclosure provides a channel occupancy recovery method, terminal, and storage medium. In some embodiments, the terms "information sending method," "information receiving method," "information processing method," and "communication method" are interchangeable; the terms "terminal," "network device," "information processing device," and "communication device" are interchangeable; and the terms "information processing system" and "communication system" are interchangeable.

[0042] The embodiments of the present disclosure are not exhaustive and are merely illustrative of some embodiments, and are not intended to be a specific limitation on the scope of protection of the present disclosure. In the absence of contradiction, each step in a certain embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, a solution after removing some steps in a certain embodiment can also be implemented as an independent embodiment, and the order of the steps in a certain embodiment can be arbitrarily exchanged. In addition, the optional embodiments in a certain embodiment can be arbitrarily combined; in addition, the embodiments can be arbitrarily combined. For example, some or all steps of different embodiments can be arbitrarily combined, and a certain embodiment can be arbitrarily combined with the optional embodiments of other embodiments.

[0043] In each embodiment of the present disclosure, unless otherwise specified or provided for by logic, the terms and / or descriptions between the embodiments are consistent and can be referenced by each other. The technical features in different embodiments can be combined to form a new embodiment based on their inherent logical relationships.

[0044] The terms used in the embodiments of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure.

[0045] In the embodiments of the present disclosure, unless otherwise specified, elements expressed in the singular form, such as "a", "an", "the", "above", "said", "aforementioned", "this", etc., may mean "one and only one", or "one or more", "at least one", etc.

[0046] For example, when using articles such as “a”, “an”, and “the” in English in translation, the noun following the article can be understood as a singular expression or a plural expression.

[0047] In the embodiments of the present disclosure, “plurality” refers to two or more.

[0048] In some embodiments, the terms "at least one," "one or more," "a plurality of," "multiple," etc. may be used interchangeably.

[0049] In some embodiments, descriptions such as "at least one of A and B," "A and / or B," "A in one case, B in another case," or "in response to one case A, in response to another case B" may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed); and in some embodiments, A and B (both A and B are executed). The above is also applicable when there are more branches such as A, B, and C.

[0050] In some embodiments, "A or B" and other descriptions may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed). The above is also applicable when there are more branches such as A, B, C, etc.

[0051] The prefixes such as "first" and "second" in the embodiments of the present disclosure are only used to distinguish different description objects and do not constitute any restrictions on the position, order, priority, quantity or content of the description objects. For the statement of the description objects, please refer to the description in the context of the claims or embodiments, and no unnecessary restrictions should be constituted due to the use of prefixes.

[0052] For example, if the description object is "field," the ordinal number preceding "field" in "first field" and "second field" does not restrict the position or order of the "fields." "First" and "second" do not restrict whether the modified "fields" are in the same message, nor do they restrict the order of the "first field" and "second field." For another example, if the description object is "level," the ordinal number preceding "level" in "first level" and "second level" does not restrict the priority of the "levels." For another example, the number of description objects is not restricted by the ordinal number and can be one or more. For example, in the case of "first device," the number of "devices" can be one or more. Furthermore, the objects modified by different prefixes can be the same or different. For example, if the description object is "device," "first device" and "second device" can be the same or different devices, and their types can be the same or different. For another example, if the description object is "information," "first information" and "second information" can be the same or different information, and their content can be the same or different.

[0053] In some embodiments, “including A,” “comprising A,” “used to indicate A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0054] In some embodiments, terms such as "in response to...", "in response to determining...", "in the case of...", "at the time of...", "when...", "if...", "if...", etc. can be used interchangeably.

[0055] In some embodiments, terms such as "greater than", "greater than or equal to", "not less than", "more than", "more than or equal to", "not less than", "higher than", "higher than or equal to", "not less than", and "above" can be replaced with each other, and terms such as "less than", "less than or equal to", "not greater than", "less than", "less than or equal to", "not more than", "lower than", "lower than or equal to", "not higher than", and "below" can be replaced with each other.

[0056] In some embodiments, devices and the like can be interpreted as physical or virtual, and their names are not limited to those in the embodiments.

[0057] The recorded names, "device", "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", "subject" and other terms can be used interchangeably.

[0058] In some embodiments, "network" can be interpreted as devices included in the network (eg, access network equipment, core network equipment, etc.).

[0059] In some embodiments, the terms "access network device (AN device)", "radio access network device (RAN device)", "base station (BS)", "radio base station" "fixed station", "node", "access point", "transmission point (TP)", "reception point (RP)", "transmission / reception point (TRP)", "panel", "antenna panel", "antenna array", "cell", "macro cell", "small cell", "femto cell", "pico cell", "sector", "cell group", "serving cell", "carrier", "component carrier", "bandwidth part (BWP)" and the like may be used interchangeably.

[0060] In some embodiments, the terms "terminal", "terminal device", "user equipment (UE)", "user terminal", "mobile station (MS)", "mobile terminal (MT)", subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client, etc. can be used interchangeably.

[0061] In some embodiments, the access network device, the core network device, or the network device can be replaced by a terminal. For example, the various embodiments of the present disclosure can also be applied to a structure in which the communication between the access network device, the core network device, or the network device and the terminal is replaced by communication between multiple terminals (for example, device-to-device (D2D), vehicle-to-everything (V2X), etc.). In this case, it is also possible to set the structure in which the terminal has all or part of the functions of the access network device. In addition, terms such as "uplink" and "downlink" can also be replaced by terms corresponding to communication between terminals (for example, "side"). For example, uplink channels, downlink channels, etc. can be replaced by side channels, and uplinks, downlinks, etc. can be replaced by side links.

[0062] In some embodiments, the terminal may be replaced by an access network device, a core network device, or a network device. In this case, the access network device, the core network device, or the network device may have a structure that has all or part of the functions of the terminal.

[0063] In some embodiments, obtaining data, information, etc. may comply with the laws and regulations of the country where the data is obtained.

[0064] In some embodiments, data, information, etc. may be obtained with the user's consent.

[0065] In addition, each element, each row, or each column in the table of the embodiment of the present disclosure can be implemented as an independent embodiment, and the combination of any elements, any rows, and any columns can also be implemented as an independent embodiment.

[0066] FIG1 is a schematic diagram showing the architecture of a communication system according to an embodiment of the present disclosure.

[0067] As shown in FIG1 , a communication system 100 includes a first terminal 101 and a second terminal 102 .

[0068] In some embodiments, the first terminal 101 and the second terminal include, for example, a mobile phone, a wearable device, an Internet of Things device, a car with communication function, a smart car, 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 surgery, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, and at least one of a wireless terminal device in a smart home, but are not limited thereto.

[0069] In some embodiments, the network device includes at least one of the following: an access network device and a core network device. The access network device is, for example, a node or device that connects a terminal to a wireless network. The access network device may include, but is not limited to, at least one of an evolved NodeB (eNB), a next generation evolved NodeB (ng-eNB), a next generation NodeB (gNB), a node B (NB), a home nodeB (HNB), a home evolved nodeB (HeNB), a wireless backhaul device, a radio network controller (RNC), a base station controller (BSC), a base transceiver station (BTS), a base band unit (BBU), a mobile switching center, a base station in a 6G communication system, an open RAN, a cloud RAN, a base station in other communication systems, and an access node in a Wi-Fi system.

[0070] In some embodiments, a core network device may be a device including one or more network elements, or may be multiple devices or device groups, each including all or part of the one or more network elements. The network element may be virtual or physical. The core network may include, for example, at least one of an Evolved Packet Core (EPC), a 5G Core Network (5GCN), and a Next Generation Core (NGC).

[0071] In some embodiments, the technical solution of the present disclosure can be applied to the Open RAN architecture. In this case, the interfaces between or within the access network devices involved in the embodiments of the present disclosure can be transformed into internal interfaces of the Open RAN, and the processes and information interactions between these internal interfaces can be implemented through software or programs.

[0072] In some embodiments, the access network device can be composed of a centralized unit (CU) and a distributed unit (DU), where the CU can also be called a control unit. The CU-DU structure can be used to split the protocol layer of the access network device, with the functions of some protocol layers centrally controlled by the CU, and the functions of the remaining part or all of the protocol layers distributed in the DU, which is centrally controlled by the CU, but is not limited to this.

[0073] It can be understood that the communication system described in the embodiment of the present disclosure is for the purpose of more clearly illustrating the technical solution of the embodiment of the present disclosure, and does not constitute a limitation on the technical solution proposed in the embodiment of the present disclosure. Ordinary technicians in this field can know that with the evolution of the system architecture and the emergence of new business scenarios, the technical solution proposed in the embodiment of the present disclosure is also applicable to similar technical problems.

[0074] The following embodiments of the present disclosure may be applied to the communication system 100 shown in FIG1 , or a portion thereof, but are not limited thereto. The entities shown in FIG1 are illustrative only. The communication system may include all or part of the entities shown in FIG1 , or may include other entities outside of FIG1 . The number and form of the entities are arbitrary, and the entities may be physical or virtual. The connection relationships between the entities are illustrative only. The entities may be connected or disconnected, and the connection may be in any manner, including direct or indirect, wired or wireless.

[0075] The embodiments of the present disclosure can be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 5G new radio (NR), future radio access (FRA), new radio access technology (RAT), new radio (NR), new radio access (NX), future generation radio access (FX), Global System for Mobile communications (GSM (registered trademark)), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, Ultra-WideBand (UWB), Bluetooth (registered trademark), Public Land Mobile Network (PLMN) networks, Device-to-Device (D2D) systems, Machine-to-Machine (M2M) systems, Internet of Things (IoT) systems, Vehicle-to-Everything (V2X), systems utilizing other communication methods, and next-generation systems based on and extending these methods. Furthermore, multiple systems may be combined (for example, a combination of LTE or LTE-A with 5G).

[0076] FIG2 is an interactive schematic diagram showing a channel occupancy recovery method according to an embodiment of the present disclosure.

[0077] As shown in FIG2 , the channel occupancy recovery method includes:

[0078] Step S201: The first terminal 101 initiates channel occupation.

[0079] In some embodiments, the first terminal 101 may use a second access process to initiate channel occupancy of the first channel, obtain the channel occupancy time COT of the first channel, and perform a second transmission to the second terminal 102 or other terminals including the second terminal 102 during the channel occupancy time COT of the first channel.

[0080] In some embodiments, the second transmission is a SL transmission.

[0081] In some embodiments, the second transmission is a transmission on an unlicensed frequency band.

[0082] In some embodiments, the second transmission is a transmission based on SL-U technology.

[0083] In some embodiments, the first terminal 101 may stop or end the second transmission within the channel occupancy time COT of the first channel.

[0084] In some embodiments, the first terminal 101 may share the first channel with the second terminal within the channel occupation time COT of the first channel, so that the second terminal performs the third transmission on the first channel.

[0085] In some embodiments, the third transmission is a SL transmission.

[0086] In some embodiments, the third transmission is a transmission on an unlicensed frequency band.

[0087] In some embodiments, the third transmission is a transmission based on SL-U technology.

[0088] In some embodiments, after sharing the first channel with the second terminal, the first terminal may determine that the second terminal stops the third transmission on the first channel within the channel occupation time.

[0089] In step S201, the first terminal may perform a first channel access process within the channel occupancy time corresponding to the first channel; wherein the first channel access process is a channel occupancy recovery process of the first channel by the first terminal; a first transmission is performed within the channel occupancy time; the first channel access priority corresponding to the first transmission is not lower than the second channel access priority corresponding to the first channel; the second channel access priority is the channel access priority corresponding to the second transmission performed when the first terminal initiates channel occupancy of the first channel.

[0090] In some embodiments, the first transmission is a SL transmission.

[0091] In some embodiments, the first transmission is a transmission on an unlicensed frequency band.

[0092] In some embodiments, the first transmission is a transmission based on SL-U technology.

[0093] In some embodiments, if the first terminal does not share the first channel with the second terminal, the first channel access process may be a Type 2A channel access process.

[0094] In some embodiments, if the first terminal shares the first channel with the second terminal for a third transmission, after determining that the third transmission is completed, the first channel access process can be determined based on the interval between the end time of the third transmission and the start time of the first transmission.

[0095] If the time interval between the end time of the third transmission and the start time of the first transmission is greater than or equal to 25 microseconds, the first channel access procedure is a Type 2A channel access procedure;

[0096] If the time interval between the end time of the third transmission and the start time of the first transmission is equal to 16 microseconds, the first channel access procedure is a Type 2B channel access procedure or a Type 2C channel access procedure;

[0097] If the time interval between the end time of the third transmission and the start time of the first transmission is less than 16 microseconds, the first channel access process is a Type 2C channel access process;

[0098] If the time interval between the end time of the third transmission and the start time of the first transmission cannot be determined, the first channel access process is a Type 2A channel access process.

[0099] In some embodiments, the terminal may send the second information to the network device.

[0100] The communication method involved in the embodiments of the present disclosure may include at least one of steps S201 to 202. For example, step S201 may be implemented as an independent embodiment, step S202 may be implemented as an independent embodiment, and steps S201+S202 may be implemented as independent embodiments, but are not limited thereto.

[0101] In some embodiments, steps S201 and S202 may be performed in an interchangeable order or simultaneously.

[0102] In some embodiments, step S201 is optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0103] In some embodiments, step S202 is optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0104] In some embodiments, reference may be made to other optional embodiments described before or after the description corresponding to FIG. 2 .

[0105] In some embodiments, in the New Radio Unlicensed (NR-U) technology, after a terminal (also referred to as user equipment (UE)) initiates a channel occupation, a pause-resume mechanism may be performed, that is, the UE pauses for a period of time after performing a transmission, and then resumes transmission after a period of time. When initiating the channel occupation, the UE may use a Type 1 channel access procedure, and when resuming transmission, only a Type 2A channel access procedure is required to resume transmission.

[0106] In some embodiments, for sidelink transmission on unlicensed spectrum (SideLink Unlicensed, SL-U), there is a channel sharing mechanism, and the second terminal can share the channel occupancy time (Channel Occupancy Time, COT) initiated by the first terminal. The channel access priority class (CAPC) corresponding to the transmission of the second terminal during the channel occupancy time must not be lower than the channel access priority class (CAPC) corresponding to the transmission when the first terminal initiates COT.

[0107] In some embodiments, for SL-U, there may also be a channel occupancy recovery mechanism similar to that of NR-U, but unlike the channel sharing mechanism, there is no limitation on the channel access level corresponding to the transmission of the first terminal when the channel is recovered.

[0108] Due to the existence of some regional regulations, it is stipulated that the priority values ​​corresponding to all transmissions performed by the terminal during the channel occupancy time should not exceed the priority values ​​corresponding to the transmissions performed by the terminal when the COT is initiated. Among them, the smaller the priority value, the higher the corresponding channel access level. If the priority value corresponding to the transmission performed by the terminal when the channel is restored does not meet the regional regulations, it will result in a violation.

[0109] The embodiments of the present disclosure provide a channel occupancy recovery method. Figure 3A is a schematic flow chart illustrating a channel occupancy recovery method according to an embodiment of the present disclosure. The channel occupancy recovery method illustrated in this embodiment can be executed by a first terminal.

[0110] As shown in FIG3A , the channel occupancy recovery method may include the following steps:

[0111] In step S301, a first channel access process is performed within a channel occupancy time corresponding to a first channel; wherein the first channel access process is a process of recovering the channel occupancy of the first channel by the first terminal.

[0112] In step S302, a first transmission is performed during the channel occupancy time; a first channel access priority corresponding to the first transmission is not lower than a second channel access priority corresponding to the first channel; and the second channel access priority is a channel access priority corresponding to the second transmission performed when the first terminal initiates channel occupancy of the first channel.

[0113] When the first terminal determines that the second transmission is required, it may initiate channel occupation of the first channel, obtain the channel occupation time COT of the first channel, and perform the second transmission within the channel occupation time COT of the first channel.

[0114] The second transmission may be information sent by the first terminal to other terminals via the first channel. The second transmission may be sidelink (SL) transmission, which may also be called sidelink, sidelink, or sidelink.

[0115] Furthermore, the second transmission may be a transmission on an unlicensed frequency band, and the second transmission may be a transmission using SL-U technology.

[0116] The first terminal may initiate channel occupation of the first channel using a Type 1 channel access procedure.

[0117] If the first terminal determines that a first transmission is required before the channel occupancy time COT of the first channel ends, it can perform channel occupancy recovery (COT resuming) through a first channel access process within the remaining channel occupancy time COT based on a channel recovery mechanism, so as to perform the first transmission on the first channel within the remaining channel occupancy time COT.

[0118] The first transmission may be information sent by a first terminal to other terminals via a first channel. The first transmission and the second transmission may have the same or different transmission destinations. The first transmission may be SL transmission.

[0119] Furthermore, the first transmission may be a transmission on an unlicensed frequency band, and the first transmission may be a transmission using SL-U technology.

[0120] The first channel access process may be a Type 2 channel access process, for example, a Type 2A, Type 2B, or Type 2C channel access process, etc. may be used.

[0121] In order to comply with the preset regional rules, it may be required that the first channel access priority corresponding to the first transmission performed by the first terminal is not lower than the second channel access priority corresponding to the second transmission.

[0122] The channel access priority level may be represented by a priority value, where a lower priority value indicates a higher corresponding channel access priority level. The first channel access priority level is not lower than the second channel access priority level, which means that the first priority value used to represent the first channel access priority level may not be greater than the second priority value used to represent the second channel access level. The priority value may specifically be a CAPC value.

[0123] In some embodiments, if the first terminal determines that a first transmission is required before the channel occupancy time COT of the first channel has ended, the first channel access priority corresponding to the first transmission and the second channel access priority corresponding to the second transmission can be compared first; if the first channel access priority is not lower than the second channel access priority, the first channel access process is executed to perform the first transmission on the first channel within the remaining channel occupancy time COT; if the first channel access priority is lower than the second channel access priority, the first channel access process is not executed.

[0124] For example, when the first terminal initiates channel occupation of the first channel, the priority value corresponding to the second transmission is A0; if the priority value corresponding to the first transmission is A1 less than or equal to A0, the first terminal can use the first channel access process to recover the channel occupancy within the channel occupation time COT, so as to perform the first transmission on the first channel within the remaining channel occupation time COT.

[0125] In some embodiments, if the first terminal determines that multiple transmissions can be performed before the channel occupancy time (COT) of the first channel has ended, it can first select, based on the second channel access priority level corresponding to the second transmission, a transmission with a corresponding channel access priority level not lower than the second channel access priority level from the multiple transmissions as the first transmission, and then perform channel occupancy recovery through the first channel access process to perform the first transmission on the first channel within the remaining channel occupancy time (COT). Alternatively, the channel access priority level with the lowest channel access priority level among the multiple transmissions is compared with the second channel access priority level. If the channel access priority level is higher than or equal to the second channel access priority level, all of the multiple transmissions can be used as the first transmission.

[0126] Furthermore, if there is more than one transmission whose corresponding channel access priority is not lower than the second channel access priority, the first transmission can be determined from more than one transmissions based on a preset selection method, for example, the transmission with the highest channel access priority can be used as the first transmission, or the transmission with the shortest transmission duration can be used as the first transmission, or the transmission with a transmission duration closest to the remaining channel occupancy time COT can be used as the first transmission, or it can also be based on the priority of the corresponding service, etc., which is not specifically limited here.

[0127] For example, if before the channel occupancy time COT of the first channel ends, the first terminal determines that multiple transmissions SL1, SL2 and SL3 can be performed, and the corresponding priority values ​​are A1, A2 and A3 respectively; if A1 is not greater than the priority value A0 corresponding to the second transmission, and A2 and A3 are both greater than A0, the first terminal can perform channel occupancy recovery through the first channel access process to perform SL1 transmission on the first channel within the remaining channel occupancy time COT, and for SL2 and SL3, they can be transmitted by initiating new channel occupancy. If A1 and A2 are not greater than A0, and A3 is greater than A0, the first terminal can select one of SL1 and SL2 as the first transmission to be transmitted when the channel occupancy is recovered, or perform channel occupancy recovery in sequence to perform SL1 and SL2 transmissions, and for SL3, it can be transmitted by initiating new channel occupancy.

[0128] Based on the above embodiment, by determining that the first channel priority level corresponding to the first transmission performed when the channel occupancy is restored is not lower than the second channel priority level corresponding to the second transmission performed when the channel occupancy is initiated, the transmission performed when the channel occupancy is restored complies with the restrictions of the rules.

[0129] FIG3B is a schematic flow chart of a channel occupancy recovery method according to an embodiment of the present disclosure. As shown in FIG3B , the channel occupancy recovery method may include the following steps:

[0130] In step S311, the first terminal performs a second channel access process to initiate channel occupation of the first channel and obtains the channel occupation time COT of the first terminal on the first channel.

[0131] The second channel access process may be a Type 1 channel access process.

[0132] In step S312, a second transmission is performed on the first channel within the channel occupancy time COT of the first channel.

[0133] The second transmission may be a transmission on an authorized frequency band, and the first transmission may be a transmission using SL-U technology.

[0134] In step S313, during the channel occupancy time, the first terminal stops or ends the second transmission on the first channel.

[0135] In step S314, during the channel occupancy time corresponding to the first channel, a Type 2A channel access procedure is performed to recover the channel occupancy of the first channel.

[0136] In step S315, a first transmission is performed within the channel occupancy time.

[0137] After the first terminal stops or ends the second transmission, if the first terminal determines that the first transmission needs to be performed before the channel occupancy time COT of the first channel has not ended, it can perform channel occupancy recovery through the first channel access process within the remaining channel occupancy time COT based on the channel recovery mechanism, so as to perform the first transmission on the first channel within the remaining channel occupancy time COT.

[0138] The first channel access priority level corresponding to the first transmission performed by the first terminal is not lower than the second channel access priority level corresponding to the second transmission. Alternatively, the first priority value used to represent the first channel access priority level shall not be greater than the second priority value used to represent the second channel access level.

[0139] Among them, steps S314 and S315 can implement the method embodiment of steps S301 and S302 in Figure 3A, and the repeated parts are not repeated here.

[0140] Based on the above embodiment, after the first terminal stops the second transmission during the channel occupancy time, the first channel priority level corresponding to the first transmission performed when the channel occupancy is restored shall not be lower than the second channel priority level corresponding to the second transmission performed when the channel occupancy is initiated, so that the transmission performed when the channel occupancy is restored complies with the restrictions of the rules.

[0141] FIG3C is a schematic flow chart of a channel occupancy recovery method according to an embodiment of the present disclosure. As shown in FIG3C , the channel occupancy recovery method may include the following steps:

[0142] In step S321, the first terminal performs a second channel access process to initiate channel occupation of the first channel and obtains the channel occupation time COT of the first terminal on the first channel.

[0143] The second channel access process may be a Type 1 channel access process.

[0144] In step S322, a second transmission is performed on the first channel within the channel occupation time COT of the first channel.

[0145] The second transmission may be a transmission on an authorized frequency band, and the first transmission may be a transmission using SL-U technology.

[0146] In step S323, the first terminal may share the first channel with the second terminal, so that the second terminal performs a third transmission on the first channel.

[0147] The third transmission may be the second terminal sending information to the first terminal or other terminals including the first terminal through the first channel. The third transmission may be SL transmission.

[0148] Furthermore, the third transmission may be a transmission on an unlicensed frequency band, and the third transmission may be a transmission using SL-U technology.

[0149] In step S324, it is determined that the second terminal stops the third transmission on the first channel within the channel occupation time.

[0150] In step S325, within the channel occupancy time corresponding to the first channel, a first channel access process is performed to recover the channel occupancy of the first channel.

[0151] In step S326, a first transmission is performed within the channel occupancy time.

[0152] After the second terminal stops or ends the third transmission, if the first terminal determines that the first transmission needs to be performed before the channel occupancy time COT of the first channel has not ended, it can perform channel occupancy recovery through the first channel access process within the remaining channel occupancy time COT based on the channel recovery mechanism, so as to perform the first transmission on the first channel within the remaining channel occupancy time COT.

[0153] The first channel access process may be a Type 2A, Type 2B, or Type 2C channel access process.

[0154] If the first terminal can determine the time interval (gap) between the end time of the third transmission performed by the second terminal and the start time of the first transmission, the first channel access procedure to be adopted can be determined based on the size of the time interval.

[0155] If the time interval between the end time of the third transmission and the start time of the first transmission is greater than or equal to 25 microseconds (μs), the first terminal can use the Type 2A channel access process to recover the channel occupancy of the first channel so as to perform the first transmission on the first channel within the remaining channel occupancy time COT.

[0156] If the time interval between the end time of the third transmission and the start time of the first transmission is equal to 16 microseconds, the first terminal can use the Type 2B channel access process to recover the channel occupancy of the first channel so as to perform the first transmission on the first channel within the remaining channel occupancy time COT.

[0157] If the time interval between the end time of the third transmission and the start time of the first transmission is less than or equal to 16 microseconds, the first terminal can adopt the Type 2C channel access process to perform the first transmission on the first channel within the remaining channel occupancy time COT.

[0158] If the first terminal cannot determine the time interval between the end time of the third transmission performed by the second terminal and the start time of the first transmission, the first terminal can use the Type 2A channel access process to recover the channel occupancy of the first channel so as to perform the first transmission on the first channel within the remaining channel occupancy time COT.

[0159] The first channel access priority level corresponding to the first transmission performed by the first terminal is not lower than the second channel access priority level corresponding to the second transmission. Alternatively, the first priority value used to represent the first channel access priority level shall not be greater than the second priority value used to represent the second channel access level.

[0160] Among them, steps S325 and S326 can implement the method embodiment of steps S301 and S302 in Figure 3A, and the repeated parts are not repeated here.

[0161] Based on the above embodiment, after the first terminal shares the first channel with the second terminal for the third transmission during the channel occupancy time, the first channel priority level corresponding to the first transmission performed when the channel occupancy is recovered shall not be lower than the second channel priority level corresponding to the second transmission performed when the channel occupancy is initiated, so that the transmission performed when the channel occupancy is recovered complies with the restrictions of the rules.

[0162] It should be noted that the embodiments shown in Figures 3A-3C can be implemented independently or in combination with at least one other embodiment in the present disclosure. The specific selection can be made as needed and is not limited by the present disclosure.

[0163] In some embodiments, the names of information, etc. are not limited to the names described in the embodiments, and terms such as "information", "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "domain", "field", "symbol", "symbol", "codeword", "codebook", "codeword", "codepoint", "bit", "data", "program", and "chip" can be used interchangeably.

[0164] In some embodiments, terms such as "moment", "time point", "time", and "time position" can be replaced with each other, and terms such as "duration", "period", "time window", "window", and "time" can be replaced with each other.

[0165] In some embodiments, the terms "component carrier (CC)", "cell", "frequency carrier", "carrier frequency" and the like can be used interchangeably.

[0166] In some embodiments, "obtain", "get", "get", "receive", "transmit", "bidirectional transmission", "send and / or receive" can be interchangeable, and can be interpreted as receiving from other entities, obtaining from protocols, obtaining from higher layers, obtaining by self-processing, autonomous implementation, etc.

[0167] In some embodiments, terms such as "send", "transmit", "report", "download", "transmit", "bidirectional transmission", "send and / or receive" can be used interchangeably.

[0168] Corresponding to the aforementioned embodiments of the channel occupancy recovery method, the present disclosure also provides embodiments of a terminal and a network device.

[0169] An embodiment of the present disclosure also proposes a terminal, comprising: one or more processors; a memory coupled to the processor, the memory storing executable instructions, wherein when the executable instructions are executed by the processor, the network device executes the channel occupancy recovery method described in the above embodiment.

[0170] FIG4 is a schematic block diagram of a terminal device structure according to an embodiment of the present disclosure. As shown in FIG4 , the terminal may be a channel occupancy recovery device, and the device includes a processing module 401 and a transceiver module 402 .

[0171] In some embodiments, the processing module 401 is used to perform a first channel access process within the channel occupancy time corresponding to the first channel; wherein the first channel access process is a channel occupancy recovery process for the first channel; the transceiver module 402 is used to perform a first transmission within the channel occupancy time; the first channel access priority corresponding to the first transmission is not lower than the second channel access priority corresponding to the first channel; the second channel access priority is the channel access priority corresponding to the second transmission performed when the channel occupancy of the first channel is initiated.

[0172] In some embodiments, a first priority value corresponding to the first channel access priority level is not greater than a second priority value corresponding to the second channel access priority level.

[0173] In some embodiments, the processing module 401 is also used to perform a second channel access process to initiate channel occupation of the first channel; the transceiver module 402 is also used to perform a second transmission on the first channel; and during the channel occupation time, stop or end the second transmission on the first channel.

[0174] In some embodiments, the first channel access procedure is a Type 2A channel access procedure.

[0175] In some embodiments, the processing module 401 is further configured to share the first channel with a second terminal so that the second terminal performs a third transmission on the first channel; and determine that the second terminal stops the third transmission on the first channel during the channel occupancy time.

[0176] In some embodiments, the time interval between the end time of the third transmission and the start time of the first transmission is greater than or equal to 25 microseconds, and the first channel access process is a Type 2A channel access process.

[0177] In some embodiments, the time interval between the end time of the third transmission and the start time of the first transmission is equal to 16 microseconds, and the first channel access process is a Type 2B channel access process or a Type 2C channel access process.

[0178] In some embodiments, the time interval between the end time of the third transmission and the start time of the first transmission is less than 16 microseconds, and the first channel access process is a Type 2C channel access process.

[0179] In some embodiments, the first transmission, the second transmission, and the third transmission are side link (SL) transmissions.

[0180] In some embodiments, the first transmission, the second transmission, and the third transmission are transmissions on an unlicensed frequency band.

[0181] It should be noted that the modules included in the terminal are not limited to the modules described in the above embodiments, and may also include other modules, such as a storage module, a display module, etc.

[0182] For the device embodiment, since it basically corresponds to the method embodiment, the relevant parts can be referred to the partial description of the method embodiment. The device embodiment described above is merely illustrative, wherein the modules described as separate components may or may not be physically separated, and the components displayed as modules may or may not be physical modules, that is, they may be located in one place, or they may be distributed on multiple network modules. Some or all of the modules can be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Those of ordinary skill in the art can understand and implement it without paying any creative work.

[0183] An embodiment of the present disclosure also proposes a communication device, comprising: one or more processors; a memory coupled to the processor, the memory storing executable instructions, wherein when the executable instructions are executed by the processor, the processor calls the executable instructions so that the communication device executes the channel occupancy recovery method described in the above optional embodiment.

[0184] An embodiment of the present disclosure further proposes a communication system, including a first terminal and a second terminal, wherein the first terminal is configured to implement the channel occupancy recovery method described in the above optional embodiment.

[0185] An embodiment of the present disclosure further provides a storage medium storing instructions. When the instructions are executed on a communication device, the communication device executes the channel occupancy recovery method described in the above optional embodiment.

[0186] The embodiments of the present disclosure further provide an apparatus for implementing any of the above methods. For example, an apparatus is provided, comprising units or modules for implementing each step performed by a terminal in any of the above methods. For another example, another apparatus is provided, comprising units or modules for implementing each step performed by a network device (e.g., an access network device, a core network function node, a core network device, etc.) in any of the above methods.

[0187] It should be understood that the division of the various units or modules in the above device is merely a division of logical functions. In actual implementation, they may be fully or partially integrated into a physical entity, or they may be physically separated. In addition, the units or modules in the device may be implemented in the form of a processor calling software: for example, the device includes a processor, the processor is connected to a memory, and the memory stores instructions. The processor calls the instructions stored in the memory to implement any of the above methods or implement the functions of the various units or modules of the above device, wherein the processor is, for example, a general-purpose processor, such as a central processing unit (CPU) or a microprocessor, and the memory is a memory within the device or a memory outside the device. Alternatively, the units or modules in the device can be implemented in the form of hardware circuits, and the functions of some or all of the units or modules can be realized by designing the hardware circuits. The above-mentioned hardware circuits can be understood as one or more processors; for example, in one implementation, the above-mentioned hardware circuit is an application-specific integrated circuit (ASIC), which realizes the functions of some or all of the above units or modules by designing the logical relationship of the components in the circuit; for example, in another implementation, the above-mentioned hardware circuit can be realized by a programmable logic device (PLD). Taking a field programmable gate array (FPGA) as an example, it can include a large number of logic gate circuits, and the connection relationship between the logic gate circuits is configured by configuring the configuration file, thereby realizing the functions of some or all of the above units or modules. All units or modules of the above devices can be realized in the form of software called by the processor, or in the form of hardware circuits, or in part by the form of software called by the processor, and the rest by hardware circuits.

[0188] In the embodiments of the present disclosure, the processor is a circuit with signal processing capabilities. In one implementation, the processor can be a circuit with instruction reading and execution capabilities, such as a central processing unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), or a digital signal processor (DSP). In another implementation, the processor can implement certain functions through the logical relationship of the hardware circuit. The logical relationship of the above-mentioned hardware circuit is fixed or reconfigurable. For example, the processor is a hardware circuit implemented by an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In a reconfigurable hardware circuit, the process of the processor loading a configuration document and implementing the hardware circuit configuration can be understood as the process of the processor loading instructions to implement the functions of some or all of the above units or modules. In addition, it can also be a hardware circuit designed for artificial intelligence, which can be understood as an ASIC, such as a neural network processing unit (NPU), a tensor processing unit (TPU), a deep learning processing unit (DPU), etc.

[0189] Figure 5 is a schematic diagram of the structure of a communication device 5100 proposed in an embodiment of the present disclosure. Communication device 5100 can be a network device (e.g., an access network device, a core network device, etc.), a terminal (e.g., a user equipment, etc.), a chip, a chip system, or a processor that supports a network device to implement any of the above methods, or a chip, a chip system, or a processor that supports a terminal to implement any of the above methods. Communication device 5100 can be used to implement the methods described in the above method embodiments. For details, please refer to the description of the above method embodiments.

[0190] As shown in Figure 5, the communication device 5100 includes one or more processors 5101. The processor 5101 can be a general-purpose processor or a dedicated processor, for example, a baseband processor or a central processing unit. The baseband processor can be used to process communication protocols and communication data, and the central processing unit can be used to control the communication device (such as a base station, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute programs, and process program data. The processor 5101 is used to call instructions to enable the communication device 5100 to perform any of the above methods.

[0191] In some embodiments, the communication device 5100 further includes one or more memories 5102 for storing instructions. Optionally, all or part of the memories 5102 may be located outside the communication device 5100.

[0192] In some embodiments, the communication device 5100 further includes one or more transceivers 5103. When the communication device 5100 includes one or more transceivers 5103, the communication steps such as sending and receiving in the above method are performed by the transceiver 5103, and the other steps are performed by the processor 5101.

[0193] In some embodiments, a transceiver may include a receiver and a transmitter, which may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, and transceiver circuit may be used interchangeably; the terms transmitter, transmitting unit, transmitter, and transmitting circuit may be used interchangeably; and the terms receiver, receiving unit, receiver, and receiving circuit may be used interchangeably.

[0194] Optionally, the communication device 5100 further includes one or more interface circuits 5104, which are connected to the memory 5102. The interface circuits 5104 may be configured to receive signals from the memory 5102 or other devices, and may be configured to send signals to the memory 5102 or other devices. For example, the interface circuits 5104 may read instructions stored in the memory 5102 and send the instructions to the processor 5101.

[0195] The communication device 5100 described in the above embodiments may be a network device or a terminal, but the scope of the communication device 5100 described in the present disclosure is not limited thereto, and the structure of the communication device 5100 may not be limited by FIG. 5 . The communication device may be an independent device or may be part of a larger device. For example, the communication device may be: 1) an independent integrated circuit IC, or a chip, or a chip system or subsystem; (2) a collection of one or more ICs, optionally, the above IC collection may also include a storage component for storing data or programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, a terminal device, an intelligent terminal device, a cellular phone, a wireless device, a handheld device, a mobile unit, an in-vehicle device, a network device, a cloud device, an artificial intelligence device, etc.; (6) others, etc.

[0196] FIG6 is a schematic diagram of the structure of a chip 6200 according to an embodiment of the present disclosure. If the communication device 5100 can be a chip or a chip system, reference can be made to the schematic diagram of the structure of the chip 6200 shown in FIG6 , but the present disclosure is not limited thereto.

[0197] The chip 6200 includes one or more processors 6201, and the processor 6201 is used to call instructions so that the chip 6200 executes any of the above methods.

[0198] In some embodiments, the chip 6200 further includes one or more interface circuits 6202, which are connected to the memory 6203. The interface circuit 6202 can be used to receive signals from the memory 6203 or other devices, and can be used to send signals to the memory.

[0199] 6203 or other devices to send signals. For example, the interface circuit 6202 can read the instructions stored in the memory 6203 and send the instructions to the processor 6201. Optionally, the terms interface circuit, interface, transceiver pin, transceiver, etc. can be used interchangeably.

[0200] In some embodiments, the chip 6200 further includes one or more memories 6203 for storing instructions. Alternatively, all or part of the memories 6203 may be located outside the chip 6200.

[0201] The present disclosure also proposes a storage medium having instructions stored thereon, which, when executed on the communication device 5100, causes the communication device 5100 to execute any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but is not limited thereto and may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but is not limited thereto and may also be a transient storage medium.

[0202] The present disclosure also provides a program product, which, when executed by the communication device 5100, enables the communication device 5100 to perform any of the above methods. Optionally, the program product is a computer program product.

[0203] The present disclosure also proposes a computer program, which, when executed on a computer, causes the computer to perform any one of the above methods.

Claims

1. A channel occupancy recovery method, characterized in that: The method is performed by a first terminal and includes: During the channel occupation time corresponding to the first channel, a first channel access process is performed; wherein the first channel access process is a channel occupation recovery process of the first terminal to the first channel; A first transmission is performed during the channel occupancy time; a first channel access priority level corresponding to the first transmission is not lower than a second channel access priority level corresponding to the first channel; and the second channel access priority level is the channel access priority level corresponding to the second transmission performed when the first terminal initiates channel occupancy of the first channel.

2. The method according to claim 1, characterized in that: The first channel access priority level corresponding to the first transmission is not lower than the second channel access priority level corresponding to the first channel, including: the first priority value corresponding to the first channel access priority level is not greater than the second priority value corresponding to the second channel access priority level.

3. The method according to claim 1, characterized in that Before performing the first channel access process, the method further includes: performing a second channel access procedure to initiate channel occupation of the first channel; performing a second transmission on the first channel; During the channel occupation time, the second transmission is stopped or ended on the first channel.

4. The method according to claim 2, characterized in that: The first channel access process is a Type 2A channel access process.

5. The method according to claim 3, characterized in that: Before performing the first channel access process, the method further includes: sharing the first channel with a second terminal, so that the second terminal performs a third transmission on the first channel; It is determined that the second terminal stops the third transmission on the first channel within the channel occupation time.

6. The method according to claim 5, characterized in that The time interval between the end time of the third transmission and the start time of the first transmission is greater than or equal to 25 microseconds, and the first channel access process is a Type 2A channel access process.

7. The method according to claim 5, characterized in that The time interval between the end time of the third transmission and the start time of the first transmission is equal to 16 microseconds, and the first channel access process is a Type 2B channel access process or a Type 2C channel access process.

8. The method according to claim 5, characterized in that The time interval between the end time of the third transmission and the start time of the first transmission is less than 16 microseconds, and the first channel access process is a Type 2C channel access process.

9. The method according to any one of claims 1 to 8, characterized in that: The first transmission, the second transmission and the third transmission are side link SL transmissions.

10. The method according to any one of claims 1 to 9, characterized in that: The first transmission, the second transmission and the third transmission are transmissions on an unlicensed frequency band.

11. A channel occupancy recovery device, characterized in that: The device comprises: A processing module, configured to execute a first channel access process within a channel occupancy time corresponding to the first channel; wherein the first channel access process is a channel occupancy recovery process for the first channel; A transceiver module is used to perform a first transmission during the channel occupancy time; a first channel access priority level corresponding to the first transmission is not lower than a second channel access priority level corresponding to the first channel; and the second channel access priority level is a channel access priority level corresponding to the second transmission performed when the channel occupancy of the first channel is initiated.

12. A terminal, characterized in that: include: one or more processors; A memory coupled to the processor, wherein the memory stores executable instructions, wherein when the executable instructions are executed by the processor, the terminal executes the channel occupancy recovery method according to any one of claims 1 to 10.

13. A communication device, characterized in that: include: one or more processors; A memory coupled to the processor, wherein the memory stores executable instructions, wherein when the executable instructions are executed by the processor, the processor is used to call instructions so that the communication device executes the channel occupancy recovery method according to any one of claims 1 to 10.

14. A communication system, characterized in that: The method comprises a first terminal and a second terminal, wherein the first terminal is configured to implement the channel occupancy recovery method according to any one of claims 1 to 10.

15. A storage medium storing instructions, characterized in that: When the instruction is executed on a communication device, the communication device is enabled to execute the channel occupancy recovery method according to any one of claims 1 to 10.

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