Channel occupancy time method and device

Abstract

A wireless communication method for use in a wireless terminal is disclosed. The wireless communication method includes transmitting to a wireless network node a COT sharing indication associated with sharing a channel occupancy time (COT) initiated by the wireless terminal, where the COT sharing indication includes at least one of the following: a start point, duration or a set of available resource blocks of the COT.

Description

[0001] This document relates generally to wireless communications, and in particular to SideLink (SL) communications.

[0002] In order to perform SL operation in unlicensed spectrum, it is expected that the user equipment (UE) should perform transmission in the channel occupancy time (COT) dedicated to SL transmission, or perform transmission in the COT that can be presumed to be used for uplink (UL) transmission or downlink (DL) transmission for new radio (NR) unlicensed operation.

[0003] For New Radio (NR) SL operation in a shared channel (e.g., denoted as SL-U), UE-to-UE COT sharing is supported, and it is expected to specify a Type 1 channel access procedure to initiate UE-to-UE COT sharing.

[0004] This document relates to methods, systems and devices for SL communication, and more particularly to methods, systems and devices for COT sharing related to SL communication.

[0005] The present disclosure relates to a wireless communication method used in a wireless terminal. The wireless communication method includes: sending a COT sharing indication associated with sharing a channel occupation time COT initiated by the wireless terminal to a wireless network node, wherein the COT sharing indication includes at least one of the following: a starting point, a duration, or a set of available resource blocks of the COT.

[0006] Various embodiments may preferably implement the following features.

[0007] Preferably, the COT sharing indication is used to indicate that the COT is not available for transmission from the radio network node to the wireless terminal and / or transmission from the wireless terminal to the radio network node.

[0008] Preferably, the COT sharing indication is used to indicate that the COT can be used for communication with the radio network node, and the wireless communication method further comprises: sending an indication associated with a time slot reserved for sidelink SL transmission in the COT to the radio network node.

[0009] Preferably, the indication associated with the time slots reserved for the SL transmission in the COT includes at least one of: a bitmap associated with the time slots reserved and / or unreserved for the SL transmission in the COT, a priority value of each SL transmission in the COT, or a channel access priority class (CAPC) of each SL transmission in the COT.

[0010] Preferably, the wireless terminal uses resource allocation mode 2 to perform the SL transmission in the COT.

[0011] Preferably, the COT sharing indication does not include at least one of: a bitmap associated with time slots reserved and / or unreserved for sidelink SL transmissions in the COT, a priority value for each SL transmission in the COT, or a CAPC for each SL transmission in the COT.

[0012] Preferably, the wireless terminal adopts resource allocation mode 1 to perform SL transmission in the COT.

[0013] The present disclosure relates to a wireless communication method used in a wireless network node. The wireless communication method includes: receiving a COT sharing indication associated with sharing a channel occupation time COT initiated by the wireless terminal from a wireless terminal, wherein the COT sharing indication includes at least one of the following: a starting point, a duration, or a set of available resource blocks of the COT.

[0014] Various embodiments may preferably implement the following features.

[0015] Preferably, the COT sharing indication is used to indicate that the COT is not available for transmission from the radio network node to the wireless terminal and / or transmission from the wireless terminal to the radio network node.

[0016] Preferably, the COT sharing indication is used to indicate that the COT can be used for communication with the wireless network node, and the wireless communication method further comprises: receiving from the wireless terminal an indication associated with a time slot reserved for side link SL transmission in the COT.

[0017] Preferably, the indication associated with the time slots reserved for the SL transmission in the COT includes at least one of: a bitmap associated with the time slots reserved and / or unreserved for the SL transmission in the COT, a priority value of each SL transmission in the COT, or a CAPC for each SL transmission in the COT.

[0018] Preferably, the wireless terminal uses resource allocation mode 2 to perform the SL transmission in the COT.

[0019] Preferably, the COT sharing indication does not include at least one of: a bitmap associated with time slots reserved and / or unreserved for sidelink SL transmissions in the COT, a priority value for each SL transmission in the COT, or a CAPC for each SL transmission in the COT.

[0020] Preferably, the wireless terminal adopts resource allocation mode 1 to perform SL transmission in the COT.

[0021] The present disclosure relates to a wireless communication method used in a wireless terminal. The wireless communication method includes: receiving at least one channel occupancy time (COT) sharing parameter associated with executing a resource allocation mechanism from a wireless network node, wherein the resource allocation mechanism is used to share the COT initiated by the wireless network node with a side link SL communication.

[0022] Various embodiments may preferably implement the following features.

[0023] Preferably, the at least one COT sharing parameter includes at least one of the following: a starting point, a duration or a set of available resource blocks of the COT.

[0024] The present disclosure relates to a wireless communication method used in a wireless network node. The wireless communication method comprises: after an uplink transmission and / or SL transmission in a channel occupancy time COT initiated by a wireless terminal for a sidelink SL transmission, performing a downlink transmission from the wireless network node to the wireless terminal.

[0025] Various embodiments may preferably implement the following features.

[0026] Preferably, no energy detection threshold parameter associated with sharing the COT with downlink transmission from the radio network node to the wireless terminal is provided, and the downlink transmission does not include unicast transmission with user plane data.

[0027] Preferably, an energy detection threshold parameter associated with sharing the COT with a downlink transmission from the wireless network node to the wireless terminal is not provided, and the duration of the downlink transmission is not greater than m symbols, where m is a positive integer determined based on the subcarrier spacing of the channel corresponding to the unicast transmission.

[0028] Preferably, a gap between the uplink transmission or the SL transmission and the downlink transmission is lower than a threshold, and the wireless communication method further comprises: performing a type 2C downlink channel access procedure for the downlink transmission.

[0029] Preferably, the gap between the uplink transmission or the SL transmission and the downlink transmission is greater than or equal to a threshold, and the wireless communication method further includes: performing a type 2A downlink channel access procedure or a type 2B downlink channel access procedure for the downlink transmission.

[0030] Preferably, an energy detection threshold parameter associated with sharing the COT for downlink transmission from the wireless network node to the wireless terminal is provided, and the wireless communication method further comprises: sending high-layer parameters associated with a table to the wireless terminal, wherein the table comprises rows configured to indicate that sharing of the COT is available or unavailable for at least one of uplink communication or downlink communication.

[0031] Preferably, the wireless communication method further includes: receiving a COT sharing indication associated with sharing the COT initiated by the wireless terminal from the wireless terminal, wherein the COT sharing indication indicates at least one COT sharing parameter via the table, and wherein the at least one COT sharing parameter includes at least one of the following: an offset associated with starting to share the COT, a duration of the COT, or a channel access priority level CAPC of the downlink transmission.

[0032] Preferably, the wireless communication method further includes:

[0033] receiving, from the wireless terminal, a COT sharing indication associated with sharing a COT initiated by the wireless terminal, wherein the row in the table indicated by the COT sharing indication is used to indicate that the COT initiated by the wireless terminal is not available for communication between the radio network node and the wireless terminal, and

[0034] A COT is initiated for the communication between the radio network node and the wireless terminal.

[0035] The present disclosure relates to a wireless communication method used in a wireless terminal. The wireless communication method comprises: performing a first type of communication with a configured authorization on a channel by using a channel access procedure with a first priority level during a channel occupation time COT,

[0036] wherein, in the COT, scheduling performs a second type of communication on at least part of the resource blocks of the channel after the first type of communication by using a channel access procedure without cyclic prefix extension and having a second priority level,

[0037] wherein if the first priority level is greater than or equal to the second priority level and the sum of the duration of the first type of communication and the duration of the second type of communication does not exceed the COT duration associated with the first priority level, the second type of communication is performed without gaps after the first type of communication, and

[0038] Wherein, if the first priority level is lower than the second priority level, terminating the first type of communication on the resource blocks occupied by the second type of communication.

[0039] Various embodiments may preferably implement the following features.

[0040] Preferably, the first type of communication is one of sidelink (SL) communication and uplink communication, and the second type of communication is the other of the SL communication and the uplink communication.

[0041] The present disclosure relates to a wireless communication method used in a wireless terminal. The wireless communication method comprises: performing a first type of communication with a configured authorization on a channel by using a channel access procedure with a first priority level during a channel occupation time COT,

[0042] wherein, in the COT, scheduling performs a second type of communication on the same carrier of the channel after the first type of communication by using a channel access procedure without cyclic prefix extension and having a second priority level,

[0043] Wherein, if the first priority level is greater than or equal to the second priority level, and the sum of the duration of the first type of communication and the duration of the second type of communication does not exceed the COT duration associated with the first priority level, performing the second type of communication by at least one of the following:

[0044] performing the second type of communication without gaps after the first type of communication, or

[0045] When the first type of communication and the second type of communication are scheduled and configured simultaneously, only the second type of communication is performed; and

[0046] Wherein, if the first priority level is lower than the second priority level, terminating the first type of communication on the resource blocks occupied by the second type of communication.

[0047] Various embodiments may preferably implement the following features.

[0048] Preferably, the first type of communication is one of sidelink (SL) communication and uplink communication, and the second type of communication is the other of the SL communication and the uplink communication.

[0049] The present disclosure relates to a wireless communication method used in a wireless terminal. The wireless communication method comprises: performing a channel access procedure for a first type of communication and / or a second type of communication within a channel occupation time COT initiated for the first type of communication and / or the second type of communication, wherein at least one channel availability detection parameter of the channel access procedure is determined based on the at least one channel availability detection parameter associated with the first type of communication and the at least one channel availability detection parameter associated with the second type of communication.

[0050] Various embodiments may preferably implement the following features.

[0051] Preferably, the at least one channel availability detection parameter includes an energy detection threshold associated with determining an idle state and / or a busy state of the channel, and the energy detection threshold of the channel access process is set to one of a minimum value, an average value or a maximum value between the energy detection threshold associated with the first type of communication and the energy detection threshold associated with the second type of communication.

[0052] Preferably, the at least one channel availability detection parameter includes a congestion window length associated with determining the availability of a channel, and the congestion window length of the channel access process is set to one of a maximum, an average or a minimum value between the congestion window length associated with the first type of communication and the congestion window length associated with the second type of communication.

[0053] Preferably, the first type of communication is one of sidelink (SL) communication and uplink communication, and the second type of communication is the other of the SL communication and the uplink communication.

[0054] The present disclosure relates to a wireless communication method used in a wireless terminal. The wireless communication method includes: receiving high-layer signaling associated with configuration or pre-configuration from a wireless network node, wherein the configuration or pre-configuration is about whether a first type of communication is allowed within a channel occupancy time COT for a second type of communication initiated by the wireless terminal.

[0055] Various embodiments may preferably implement the following features.

[0056] Preferably, the first type of communication is one of side link SL communication and communication with the wireless network node, and the second type of communication is the other of the SL communication and communication with the wireless network node, wherein the communication with the wireless network node includes at least one of uplink communication or downlink communication.

[0057] The present disclosure relates to a wireless communication method used in a wireless network node. The wireless communication method includes: sending a high-layer signaling associated with configuration or pre-configuration to a wireless terminal, wherein the configuration or pre-configuration is about whether a first type of communication is allowed within a channel occupancy time COT for a second type of communication initiated by the wireless terminal.

[0058] Various embodiments may preferably implement the following features.

[0059] Preferably, the first type of communication is one of side link SL communication and communication with the wireless network node, and the second type of communication is the other of the SL communication and communication with the wireless network node, wherein the communication with the wireless network node includes at least one of uplink communication or downlink communication.

[0060] The present disclosure relates to a wireless terminal. The wireless terminal comprises:

[0061] A communication unit is used to send a channel occupancy time (COT) sharing indication associated with sharing the COT initiated by the wireless terminal to a wireless network node, wherein the COT sharing indication includes at least one of the following: a starting point, a duration or a set of available resource blocks of the COT.

[0062] Various embodiments may preferably implement the following features.

[0063] Preferably, the wireless terminal further comprises a processor configured to execute any one of the above wireless communication methods.

[0064] The present disclosure relates to a wireless network node. The wireless network node comprises:

[0065] A communication unit is used to receive a COT sharing indication associated with sharing a channel occupancy time COT initiated by the wireless terminal from a wireless terminal, wherein the COT sharing indication includes at least one of the following: a starting point, a duration or a set of available resource blocks of the COT.

[0066] Various embodiments may preferably implement the following features.

[0067] Preferably, the radio network node further comprises a processor configured to execute any of the above wireless communication methods.

[0068] The present disclosure relates to a wireless terminal. The wireless terminal comprises:

[0069] A communication unit is configured to receive at least one channel occupancy time (COT) sharing parameter associated with executing a resource allocation mechanism from a radio network node, wherein the resource allocation mechanism is used to share the COT initiated by the radio network node with a side link SL communication.

[0070] Various embodiments may preferably implement the following features.

[0071] Preferably, the wireless terminal further comprises a processor configured to execute any one of the above wireless communication methods.

[0072] The present disclosure relates to a wireless network node. The wireless network node comprises:

[0073] a communication unit, and

[0074] The processor is configured to perform a downlink transmission from the radio network node to the wireless terminal after an uplink transmission and / or an SL transmission in a channel occupancy time COT initiated by the wireless terminal for a side link SL transmission.

[0075] Various embodiments may preferably implement the following features.

[0076] Preferably, the processor is further configured to execute any of the above wireless communication methods.

[0077] The present disclosure relates to a wireless terminal. The wireless terminal comprises:

[0078] a communication unit, and

[0079] a processor for performing, during a channel occupation time COT, a first type of communication on the channel with a configured grant by using a channel access procedure with a first priority level,

[0080] wherein, in the COT, scheduling performs a second type of communication on at least part of the resource blocks of the channel after the first type of communication by using a channel access procedure without cyclic prefix extension and having a second priority level,

[0081] wherein if the first priority level is greater than or equal to the second priority level and the sum of the duration of the first type of communication and the duration of the second type of communication does not exceed the COT duration associated with the first priority level, the second type of communication is performed without gaps after the first type of communication, and

[0082] Wherein, if the first priority level is lower than the second priority level, terminating the first type of communication on the resource blocks occupied by the second type of communication.

[0083] Various embodiments may preferably implement the following features.

[0084] Preferably, the processor is further configured to execute any of the above wireless communication methods.

[0085] The present disclosure relates to a wireless terminal. The wireless terminal comprises:

[0086] a communication unit, and

[0087] a processor for performing, during a channel occupation time COT, a first type of communication on the channel with a configured grant by using a channel access procedure with a first priority level,

[0088] wherein, in the COT, scheduling performs a second type of communication on the same carrier of the channel after the first type of communication by using a channel access procedure without cyclic prefix extension and having a second priority level,

[0089] Wherein, if the first priority level is greater than or equal to the second priority level, and the sum of the duration of the first type of communication and the duration of the second type of communication does not exceed the COT duration associated with the first priority level, performing the second type of communication by at least one of the following:

[0090] performing the second type of communication without gaps after the first type of communication, or

[0091] When the first type of communication and the second type of communication are scheduled and configured simultaneously, only the second type of communication is performed; and

[0092] Wherein, if the first priority level is lower than the second priority level, terminating the first type of communication on the resource blocks occupied by the second type of communication.

[0093] Various embodiments may preferably implement the following features.

[0094] Preferably, the processor is further configured to execute any of the above wireless communication methods.

[0095] The present disclosure relates to a wireless terminal. The wireless terminal comprises:

[0096] a communication unit, and

[0097] a processor, configured to perform a channel access procedure for the first type of communication and / or the second type of communication within a channel occupation time COT initiated for the first type of communication and / or the second type of communication,

[0098] Therein, at least one channel availability detection parameter of the channel access process is determined based on the at least one channel availability detection parameter associated with the first type of communication and the at least one channel availability detection parameter associated with the second type of communication.

[0099] Various embodiments may preferably implement the following features.

[0100] Preferably, the processor is further configured to execute any of the above wireless communication methods.

[0101] The present disclosure relates to a wireless terminal. The wireless terminal comprises:

[0102] A communication unit is configured to receive high-layer signaling associated with configuration or pre-configuration from a radio network node, wherein the configuration or pre-configuration is about whether a first type of communication is allowed within a channel occupancy time COT for a second type of communication initiated by the wireless terminal.

[0103] Various embodiments may preferably implement the following features.

[0104] Preferably, the wireless terminal further comprises a processor configured to execute any one of the above wireless communication methods.

[0105] The present disclosure relates to a wireless network node. The wireless network node comprises:

[0106] A communication unit is configured to send high-layer signaling associated with configuration or pre-configuration to a wireless terminal, wherein the configuration or pre-configuration is about whether a first type of communication is allowed within a channel occupancy time COT for a second type of communication initiated by the wireless terminal.

[0107] Various embodiments may preferably implement the following features.

[0108] Preferably, the radio network node further comprises a processor configured to execute any of the above wireless communication methods.

[0109] The present disclosure relates to a computer program product, comprising a computer-readable program code stored thereon, which, when executed by a processor, causes the processor to implement the wireless communication method described in any one of the aforementioned methods.

[0110] The exemplary embodiments disclosed herein are intended to provide features that will become apparent by reference to the following description in conjunction with the accompanying drawings. According to various embodiments, exemplary systems, methods, devices, and computer program products are disclosed herein. However, it should be understood that these embodiments are presented by way of example and not limitation, and it will be apparent to those of ordinary skill in the art who read this disclosure that various modifications may be made to the disclosed embodiments while remaining within the scope of this disclosure.

[0111] Therefore, the present disclosure is not limited to the exemplary embodiments and applications described and illustrated herein. In addition, the specific order and / or hierarchy of steps in the methods disclosed herein are merely exemplary methods. Based on design preferences, the specific order or hierarchy of steps of the disclosed methods or processes can be rearranged while remaining within the scope of the present disclosure. Thus, those skilled in the art will understand that the methods and techniques disclosed herein present different steps or actions in a sample order, and the present disclosure is not limited to the specific order or hierarchy presented, unless otherwise explicitly stated.

[0112] The above and other aspects and implementations thereof are described in more detail in the drawings, the description and the claims.

[0113] Figure 1 A schematic diagram of a network (architecture) according to an embodiment of the present disclosure is shown.

[0114] Figure 2 A schematic diagram of communication in a COT according to an embodiment of the present disclosure is shown.

[0115] Figure 3 A schematic diagram of communication in a COT according to an embodiment of the present disclosure is shown.

[0116] Figure 4 An example of a schematic diagram of a wireless terminal according to an embodiment of the present disclosure is shown.

[0117] Figure 5 An example of a schematic diagram of a wireless network node according to an embodiment of the present disclosure is shown.

[0118] Figures 6 to 15 A flow chart of a method according to an embodiment of the present disclosure is shown.

[0119] Figure 1 A schematic diagram of a network (architecture) according to an embodiment of the present disclosure is shown. Figure 1The network shown in the figure includes a base station (BS), a relay (node) (e.g., a head UE), and two UEs (UE1 and UE2). For example, UE1 may be a mobile phone and UE2 may be a smart gadget (e.g., smart glasses). Alternatively, UE1 and / or UE2 may be Internet of Things (IoT) devices. UE1 and / or UE2 may communicate with the BS directly or via a relay. Based on the SL scheduling received from the BS, the relay, UE1, and UE2 may communicate with each other, wherein the communication between each two of the relay, UE1, and UE2 is referred to as SL communication. SL communication may be in the form of unicast, multicast, or broadcast. In addition, UE2 may communicate with the BS / relay via UE1. That is, UE1 may act as a UE / mobile relay.

[0120] In this disclosure, COT may refer to channel occupancy and vice versa.

[0121] In some embodiments associated with SL unlicensed operation, a base station (BS) (e.g., eNB, gNB Radio Access Network (RAN) node) does not perform a type 1 channel access (procedure) to initiate and share channel occupancy. In addition, the BS neither performs a type 2 channel access (procedure) (e.g., type 2A / 2B / 2C channel access (procedure)) to share initiated channel occupancy nor a semi-static channel access procedure to access an unlicensed channel.

[0122] In some embodiments, the Type 1 and Type 2 channel access procedures and / or transmission gaps and Listen-Before-Talk (LBT) sensing idle time requirements specified for NR-U are taken as a baseline for NR SL operations in a shared channel (SL-U).

[0123] In some embodiments, the BS needs to perform a Type 2A channel access (procedure) for (DL) transmission after a UL transmission, wherein the Type 2A channel access is initiated at least 25 microseconds before the corresponding (DL) transmission.

[0124] In some embodiments, the BS needs to perform a Type 2B / 2C channel access (procedure) for (DL) transmission after UL transmission, where the Type 2B / 2C channel access is initiated at most 16 microseconds before the corresponding (DL) transmission.

[0125] In some embodiments, the following use cases are related to which DL transmissions can occupy the COT initiated by the UE for UL transmissions.

[0126] In an embodiment, the BS shares the channel occupation initiated by the UE, and the base station may transmit / perform the following (downlink) transmission, which is performed after the autonomous Physical UL Shared Channel (PUSCH) transmission from the user equipment:

[0127] -If the "COT sharing indication" in the Autonomous-Uplink UL Control Information (AUL-UCI) in subframe n indicates "1", the BS may send a transmission in subframe n+X, where X is the offset subframeOffsetCOT-Sharing. If the duration of the PDCCH is less than or equal to the duration of two OFDM symbols, and the PDCCH contains / includes at least AUL DL Feedback Information (AUL-DFI), or a UL grant to a UE from which a PUSCH transmission indicating COT sharing is received, the transmission includes a physical DL control channel (PDCCH), but does not include a physical DL shared channel (PDSCH) transmitted on the same channel immediately after performing a Type 2A DL channel access procedure.

[0128] In an embodiment, if the BS uses a TYPE 1 UL channel access procedure on a channel to share the channel occupancy initiated by the UE, then after the UE performs an UL transmission on the scheduled resources or a PUSCH transmission on the configured resources, the BS may perform the following transmissions after the gap:

[0129] - The transmission includes / comprising transmission to the UE initiating the channel occupation, and may include non-unicast and / or unicast transmission, wherein any unicast transmission including user plane data is transmitted only to the UE initiating the channel occupation.

[0130] - If the higher layer parameter ul-toDL-COT-SharingED-Threshold-r16 is not provided, the transmission does not include any unicast transmission with user plane data and the transmission duration is no greater than the duration of 2kHz, 4kHz and 8 symbols for the subcarrier spacing of 15kHz, 30kHz and 60kHz of the corresponding channel, respectively.

[0131] - If the gap is up to 16 microseconds, the BS may transmit a transmission on the channel after performing a DL channel access (procedure) of Type 2C.

[0132] - If the gap is 25 microseconds or 16 microseconds, the BS may transmit a transmission on the channel after performing a Type 2A or Type 2B DL ​​channel access procedure.

[0133] In an embodiment, the BS shares the channel occupancy initiated by a UE with a configured granted PUSCH transmission. In this embodiment, the gNB may transmit a transmission following a configured granted PUSCH transmission from the UE as follows:

[0134] - If the higher layer parameter ul-toDL-COT-SharingED-Threshold-r16 is provided, the UE is configured by cg-COT-SharingList-r16, where cg-COT-SharingList-r16 provides a table configured by a higher layer (i.e., a layer above the physical layer), and each row of the table provides channel occupancy sharing information given by the higher layer parameter CG-COT-Sharing-r16. In addition, one row of the table is configured to indicate that channel occupancy sharing is not available.

[0135] -If the "COT Sharing Information" in the CG-UCI detected in time slot n indicates a row index corresponding to CG-COT-Sharing-r16 providing channel occupancy sharing information, the BS can share the channel occupancy initiated by the UE under the following assumptions: the channel access priority level (CAPC) p is equal to channelAccessPriority-r16, and the channel occupancy starts from time slot n+O (where O=offset-r16 time slots) and lasts for a duration of D=duration-r16 time slots. It should be noted that duration-r16, offset-r16 and channelAccessPriority-r16 are high-level parameters provided by CG-COT-Sharing-r16.

[0136] - If the higher layer parameter ul-toDL-COT-SharingED-Threshold-r16 is not provided, and if the "COT Sharing Information" in the CG-UCI indicates "1", the gNB may share the channel occupancy initiated by the UE and start DL transmission after X=cg-COT-SharingOffset-r16*14 symbols from the end of the timeslot where the CG-UCI (configured granted UCI) is detected, where cg-COT-SharingOffset-r16 is provided by the higher layer. The transmission may not include any unicast transmission with user plane data, and the transmission duration is no greater than the duration of 2kHz, 4kHz and 8 symbols for the subcarrier spacing of 15kHz, 30kHz and 60kHz of the corresponding channel, respectively.

[0137] In some embodiments, the following applies to a UL transmission following a configured granted UL transmission:

[0138] - If the UE is scheduled to perform UL transmission starting from symbol i in slot n by using a type 1 channel access procedure without cyclic prefix (CP) extension and with a corresponding channel access priority level (CAPC), if the UE starts a configured granted uplink transmission before symbol i in slot n using a type 1 channel access procedure with a corresponding CAPC, if the scheduled uplink transmission occupies all resource blocks (RBs) of the same channel occupied by the configured granted uplink transmission or all RBs of a subset thereof, if the CAPC value of the performed channel access procedure is greater than or equal to the CAPC value corresponding to the scheduled UL transmission, then the UE may proceed with the scheduled UL transmission directly from symbol i in slot n without gaps to the corresponding CAPC. The sum of the transmission durations of the configured granted UL transmission and the scheduled UL transmission does not exceed the maximum COT (MCOT) duration corresponding to the CAPC value used for transmitting the configured granted UL transmission. Otherwise, the UE terminates the configured granted UL transmission by discarding the transmission on the symbol of at least the last configured granted UL transmission before symbol i in slot n, and attempts the scheduled UL transmission according to the corresponding CAPC.

[0139] In some embodiments, symbols of PUSCH transmissions with a configured grant in a slot are discarded according to a mechanism of a UE process that determines a slot format relative to the last symbol of a Control Resource Set (CORESET) in which the UE detects a scheduling DCI. In these embodiments, if the UE cannot terminate the configured granted UL transmission, the UE ignores the scheduling DCI.

[0140] In some embodiments, the following situations associated with COT sharing may be allowed / enabled:

[0141] -UE initiates COT for NR-U and shares the initiated COT to SL communication,

[0142] -UE initiates COT for SL-U and passes it to BS (such as gNB), BS passes COT to SL UE communication,

[0143] -UE initiates COT for SL-U and passes it to the BS, such as gNB, which uses it for NR-U transmission,

[0144] -UE initiates COT for NR-U transmission and passes the COT to the BS via the control link of the SL, and the BS transmits the COT to the SL UE communication.

[0145] In some embodiments, in order to enable SL transmission to share the COT initiated by the UE, the UE indicates through uplink control information (UCI) (e.g., CG-UCI) that the (UE-initiated) COT is not available for BS transmission (e.g., NR-U transmission and / or DL ​​transmission from the BS to the UE).

[0146] In some embodiments, in the case where the UE indicates through UCI that the (UE-initiated) COT is available for gNB transmission, in order to enable SL transmission to share the COT initiated by the UE, a bitmap field indicating the actual reserved and / or unreserved (i.e., unreserved) SL transmission is provided in the UCI. In these embodiments, the DL and / or UL transmission starts from the most recent DL and / or UL time slot and / or symbol, which excludes those reserved for the SL transmission indicated by the bitmap and is no earlier than n+O time slots, wherein the BS receives the UCI including the bitmap field in time slot n, and O is an offset value preconfigured and / or configured by the higher layer. The DL and / or UL transmission may occupy resources for a duration D excluding the SL time slot indicated by the bitmap. The duration D may be configured and / or preconfigured by the higher layer.

[0147] In some embodiments, in order to enable SL UE to share the COT initiated by the gNB, the BS may send DL control information (DCI) to the SL UE to indicate COT sharing information, which includes enabling the COT to be used for SL transmission and is associated with the SL UE to perform mode 1 or mode 2 resource allocation mechanism. In the mode 1 resource allocation mechanism for PSSCH (physical SL shared channel) and PSCCH (physical SL control channel) transmission, BS scheduling including dynamic authorization, configuration authorization type 1, and configuration authorization type 2 is supported. In the mode 2 resource allocation mechanism, the upper layer may request the UE to determine a subset of resources, from which the upper layer will select resources for PSSCH / PSCCH transmission. In order to trigger this process, in time slot n, the upper layer provides at least a resource pool index, a remaining packet delay budget (PDB), and an L1 priority for the PSSCH / PSCCH transmission.

[0148] In an embodiment, the COT sharing information includes information associated with at least one of a starting point of the COT, a COT duration, an available RB group of the COT, and the like.

[0149] In some embodiments, the preconfigured RRC parameters associated with the energy detection threshold (e.g., sl-toDL-COT-SharingED-Threshold-r16) and the COT sharing indicator (e.g., sl-cg-COT-Sharing from the RRC list sl-cg-COT-SharingList-r16 for SL transmission) may serve as at least one of the following:

[0150] - If no higher layer parameters are provided (e.g., sl-toDL-COT-SharingED-Threshold-r16), the DL transmission does not include any unicast transmission with user plane data and the transmission duration is no greater than the duration of 2, 4, and 8 symbols for subcarrier spacings of 15, 30, and 60 kHz for the corresponding channel, respectively.

[0151] - If the gap is up to 16 μs, the gNB makes this transmission on the channel (in the gap) after performing a Type 2C DL channel access procedure, where the gap is between UL and / or SL transmissions scheduled in the COT.

[0152] -If the gap is 25 μs or 16 μs, the gNB may make the transmission on the channel (in the gap) after performing a Type 2A or Type 2B DL ​​channel access procedure, where the gap is between UL and / or SL transmissions scheduled in the COT.

[0153] - If the higher layer parameter sl-toDL-COT-SharingED-Threshold-r16 is provided, the UE is configured by sl-cg-COT-SharingList-r16, where sl-cg-COT-SharingList-r16 provides a table configured by higher layers. Each row of the table provides channel occupancy sharing information given by the higher layer parameter sl-CG-COT-Sharing-r16. A row of the table is configured to indicate that channel occupancy sharing is not available for gNB transmissions. A row of the table is configured to indicate that channel occupancy sharing is not available for UL transmissions. A row of the table is configured to indicate that channel occupancy sharing is not available for UL or DL ​​transmissions.

[0154] -If the "COT Sharing Information" in the CG-UCI detected in time slot n indicates the row index corresponding to s1-CG-COT-Sharing-r16 providing channel occupancy sharing information, the gNB can share the UE channel occupancy based on the following assumptions: the channel access priority level p = channelAccessPriority-r16 and the UE channel occupancy starts from time slot n+O (where O = offset-r16 time slots) and lasts for D = duration-r16 time slots, where duration-r16, offset-r16 and channelAccessPriority-r16 are high-level parameters provided by s1-CG-COT-Sharing-r16.

[0155] - If the higher layer parameter sl-toDL-COT-SharingED-Threshold-r16 is not provided, and if the "COT Sharing Information" in the CG-UCI indicates "1", the gNB may share the UE channel occupancy and start DL transmission X = sl-cg-COT-SharingOffset-r16*14 symbols from the end of the slot where the CG-UCI is detected, where sl-cg-COT-SharingOffset-r16 is provided by higher layers. The transmission shall not include any unicast transmission with user plane data and the transmission duration shall not be greater than the duration of 2kHz, 4kHz and 8kHz for the subcarrier spacing of 15kHz, 30kHz and 60kHz of the corresponding channel, respectively.

[0156] In some embodiments, the rows in the list s1-cg-COT-SharingList-r16 are configured to be unavailable for UL transmission. In these embodiments, DL and / or UL transmission starts from the most recent DL and / or UL time slots and / or symbols, which exclude those reserved for SL transmission indicated by the bitmap and are no earlier than n+O time slots, where the BS receives the UCI including the bitmap field in time slot n, and O is an offset value preconfigured and / or configured by the higher layer. DL and / or UL transmission can occupy resources for a duration D excluding the SL time slots indicated by the bitmap. The duration D can be configured and / or preconfigured by the higher layer.

[0157] In some embodiments, the row of the table may be pre-configured or configured to indicate that channel occupancy sharing is not available for UL and / or DL ​​transmission. In these embodiments, the BS and / or UE may initiate another COT sharing for (only) NR-UDL and / or UL transmission.

[0158] In some embodiments, at least one of the following rules applies to a SL transmission following a configured granted UL transmission, a UL transmission following a configured granted SL transmission, and / or a SL transmission following a configured granted SL transmission:

[0159] - If a UE is scheduled to send SL and / or UL transmissions starting at symbol i in slot n using a type 1 channel access procedure with a corresponding CAPC without CP extension, and if the UE starts a configured granted UL and / or SL transmission using a type 1 channel access procedure with a corresponding CAPC before symbol i in slot n, and the scheduled SL and / or UL transmission occupies all RBs of the same channel or all RBs of a subset thereof occupied by the configured granted UL transmission, the UE may continue to transmit the scheduled SL and / or UL transmission directly from symbol i in slot n to the corresponding CAPC without a gap if the CAPC value of the performed channel access procedure is greater than or equal to the CAPC value corresponding to the scheduled SL and / or UL transmission. The sum of the transmission durations of the configured granted UL and / or SL transmissions and the scheduled SL and / or UL transmissions does not exceed the MCOT duration corresponding to the CAPC value used to transmit the configured granted UL and / or SL transmissions.

[0160] - Otherwise, the UE shall terminate the configured granted UL and / or SL transmissions by dropping transmissions on the symbol of at least the last configured granted UL and / or SL transmission before symbol i in slot n and attempt to transmit the scheduled SL and / or UL transmissions according to the corresponding CAPC. Symbols of PUSCH / PSSCH transmissions with configured grants in the slot shall be dropped after at least a certain preparation time relative to the last symbol of the CORESET in which the UE detected the scheduling DCI. In this case, if the UE cannot terminate the configured granted UL and / or SL transmissions, the UE ignores the scheduling DCI.

[0161] Figure 2 FIG. 1 shows a schematic diagram of communication in a COT according to an embodiment of the present disclosure. Figure 2 In the embodiment, the UE performs a first type of communication with a configured grant using a type 1 channel access procedure without CP extension, and is scheduled to perform a second type of communication after or after overlapping the first type of communication. The first type of communication has a priority value (e.g., CAPC) CAPC1 and the second type of communication has a priority value (e.g., CAPC2), the first type of communication is one of SL transmission and UL transmission, and the second type of communication is the other of SL transmission and UL transmission. Figure 2As shown, the second type communication occupies a portion of the RBs of the same channel occupied by the first type communication. If CAPC1 is greater than or equal to CAPC2, the UE performs the second type communication without a gap after the first type communication.

[0162] If CAPC1 is less than CAPC2, the UE terminates the first type communication and performs the second type communication in the RB occupied by the second type communication.

[0163] In some embodiments, at least one of the following rules applies to SL and / or UL transmissions subsequent to (i.e., following) a configured granted UL and / or SL transmission:

[0164] -If the UE is scheduled to send SL and / or UL transmission starting from symbol i in time slot n using a type 1 channel access procedure without CP extension and with a corresponding CAPC, and if the UE starts a configured authorized UL and / or SL transmission before and / or at symbol i in time slot n using a type 1 channel access procedure with a corresponding CAPC, and the scheduled SL and / or UL transmission occupies all RBs of the same channel occupied by the configured authorized UL transmission, all RBs of a subset thereof, or all RBs on some channels of the same carrier as the configured authorized UL and / or SL transmission, if the CAPC value of the performed channel access procedure is greater than or equal to the CAPC value corresponding to the scheduled SL and / or UL transmission and / or the priority of the configured authorized UL and / or SL transmission is greater than or equal to the priority of the TB of the scheduled SL and / or UL transmission, then the UE may send the scheduled SL and / or UL transmission directly to the corresponding CAPC from symbol i in time slot n without a gap. The sum of the transmission durations of the configured granted UL and / or SL transmissions and the scheduled SL and / or UL transmissions shall not exceed the MCOT duration corresponding to the CAPC value used for transmitting the configured granted UL and / or SL transmissions.

[0165] - Otherwise, the UE shall terminate the configured granted UL and / or SL transmissions by dropping transmissions on the symbol of at least the last configured granted UL and / or SL transmission before symbol i in slot n and attempt to transmit the scheduled SL and / or UL transmissions according to the corresponding CAPC. Symbols of PUSCH / PSSCH transmissions with configured grants in the slot shall be dropped after at least a certain preparation time relative to the last symbol of the CORESET in which the UE detected the scheduling DCI. In this case, if the UE cannot terminate the configured granted UL and / or SL transmissions, the UE ignores the scheduling DCI.

[0166] Figure 3FIG. 1 shows a schematic diagram of communication in a COT according to an embodiment of the present disclosure. Figure 3 In the embodiment, the UE performs a first type of communication with a configured grant by using a type 1 channel access procedure without CP extension, and is scheduled to perform a second type of communication after the first type of communication. The first type of communication has a priority value (e.g., CAPC) CAPC1 and the second type of communication has a priority value (e.g., CAPC2). The first type of communication is one of SL transmission and UL transmission, and the second type of communication is the other of SL transmission and UL transmission. Figure 3 The second type of communication is in the same carrier as the first type of communication and may occupy the same or different channel as the first type of communication. In this embodiment, because CAPC1 is greater than or equal to CAPC2 and / or the priority value of the transport block TB1 of the first type of communication is greater than or equal to the priority value of the transport block TB2 of the second type of communication, the UE only performs the second type of communication.

[0167] In some embodiments, the idle state criterion and / or the busy state criterion applied in the channel access procedure is a minimum value of the energy detection threshold for SL and UL operations, so that the COT can be shared by SL and UL transmissions.

[0168] In some embodiments, the congestion window applied during the channel access process is set to the maximum value of the congestion windows of the SL and UL transmissions to allow the COT to be shared by the SL and UL transmissions.

[0169] In some embodiments, SL transmission may occupy UL COT, or UL / DL communication may occupy SLCOT may be (pre) configured to be enabled or disabled. That is, the UE may be (pre) configured to allow SL transmission to use UL COT and / or UL / DL communication to use SLCOT, for example, through high-layer signaling (e.g., RRC signaling).

[0170] In some embodiments, the UE does not indicate to the BS specific COT parameters of the UE-initiated COT. For example, for Mode 1 transmission, the UE may not indicate to the BS at least the COT duration initiated by the UE.

[0171] Figure 4A schematic diagram of a wireless terminal 40 according to an embodiment of the present disclosure is provided. The wireless terminal 40 may be a user equipment (UE), a mobile phone, a laptop computer, a tablet computer, an e-book, or a portable computer system, which is not limited herein. The wireless terminal 40 may include a processor 400 such as a microprocessor or an application specific integrated circuit (ASIC), a storage unit 410, and a communication unit 420. The storage unit 410 may be any data storage device that stores a program code 412 accessed and executed by the processor 400. Embodiments of the storage unit 410 include, but are not limited to, a subscriber identity module (Subscriber Identity Module, SIM), a read-only memory (Read-Only Memory, ROM), a flash memory, a random access memory (Random-Access Memory, RAM), a hard disk, and an optical data storage device. The communication unit 420 may be a transceiver and is used to send and receive signals (e.g., messages or packets) according to the processing results of the processor 400. In an embodiment, the communication unit 420 communicates with the computer via a communication device. Figure 4 At least one antenna 422 is shown in the figure for transmitting and receiving signals.

[0172] In an embodiment, the storage unit 410 and the program code 412 may be omitted, and the processor 400 may include a storage unit having stored program code.

[0173] The processor 400 may implement any of the steps in the example embodiments on the wireless terminal 40 , for example, by executing the program code 412 .

[0174] The communication unit 420 may be a transceiver. The communication unit 420 may alternatively or additionally combine a transmitting unit and a receiving unit arranged to transmit and receive signals to and from a wireless network node (eg, a base station), respectively.

[0175] Figure 5A schematic diagram of a radio network node 50 according to an embodiment of the present disclosure is provided. The radio network node 50 may be a satellite, a base station (BS), a network entity, a mobility management entity (MME), a serving gateway (S-GW), a packet data network (PDN) gateway (P-GW), a radio access network (RAN) node, a next generation RAN (NG-RAN) node, a gNB, an eNB, a gNB central unit (gNB-CU), a gNB distributed unit (gNB-DU), a data network, a core network or a radio network controller (RNC), and is not limited thereto. In addition, the radio network node 50 may include (execute) at least one network function, such as an access and mobility management function (AMF), a session management function (SMF), a user place function (UPF), a policy control function (PCF), an application function (AF), etc. The wireless network node 50 may include a processor 500 such as a microprocessor or an ASIC, a storage unit 510, and a communication unit 520. The storage unit 510 may be any data storage device that stores program code 512 accessed and executed by the processor 500. Examples of the storage unit 510 include, but are not limited to, a SIM, a ROM, a flash memory, a RAM, a hard disk, and an optical data storage device. The communication unit 520 may be a transceiver and is used to send and receive signals (e.g., messages or packets) according to the processing results of the processor 500. In an embodiment, the communication unit 520 communicates with the processor 500 via a communication interface. Figure 5 At least one antenna 522 is shown for transmitting and receiving signals.

[0176] In an embodiment, the storage unit 510 and the program code 512 may be omitted. The processor 500 may include a storage unit having stored program code.

[0177] The processor 500 may implement any of the steps described in the example embodiments on the radio network node 50 , for example, via executing the program code 512 .

[0178] The communication unit 520 may be a transceiver. The communication unit 520 may alternatively or additionally combine a transmitting unit and a receiving unit configured to transmit and receive signals to and from a wireless terminal (eg, a user equipment or another wireless network node).

[0179] Figure 6 A flow chart of a method according to an embodiment of the present disclosure is shown. Figure 4 The method shown in can be used in a wireless terminal (e.g., UE) and includes the following steps:

[0180] Step 601: Send a COT sharing indication associated with sharing a COT initiated by the wireless terminal to a radio network node.

[0181] In this embodiment, the wireless terminal can share the COT initiated by itself with various types of communications. Under this condition, the wireless terminal sends a COT sharing indication associated with sharing the COT initiated by the wireless terminal to the radio network node. In this embodiment, the COT sharing indication includes at least one of the following: the starting point, duration, or available resource block set of the COT.

[0182] In an embodiment, the COT sharing indication is used to indicate that the COT is not available for transmission from the wireless network node to the wireless terminal and / or transmission from the wireless terminal to the wireless network node, for example, enabling SL transmission to share the COT initiated by the wireless terminal.

[0183] In an embodiment, the COT sharing indication is used to indicate that the COT can be used for communication with the radio network node (i.e., UL and / or DL ​​transmission), for example, so that SL transmission can share the COT initiated by the COT. In this embodiment, the wireless terminal sends an indication associated with the time slot reserved for SL transmission in the COT to the radio network node. For example, the indication associated with the time slot reserved for SL transmission in the COT may include at least one of the following:

[0184] a bitmap associated with time slots in the COT reserved and / or not reserved for transmission of the SL,

[0185] The priority value of each SL transmission in the COT, or

[0186] The CAPC transmitted by each SL in the COT.

[0187] In an embodiment, the wireless terminal uses resource allocation mode 2 in the COT to perform the SL transmission.

[0188] In an embodiment, the COT sharing indication does not include at least one of the following: a bitmap associated with time slots reserved and / or unreserved for sidelink SL transmission in the COT, a priority value for each SL transmission in the COT, or a CAPC for each SL transmission in the COT. In this embodiment, the wireless terminal uses resource allocation mode 1 for SL transmission in the COT.

[0189] Figure 7 A flow chart of a method according to an embodiment of the present disclosure is shown. Figure 7 The method shown may be used in a wireless network node and comprises the following steps:

[0190] Step 701: Receive, from a wireless terminal, a COT sharing indication associated with sharing a COT initiated by the wireless terminal.

[0191] exist Figure 7 In the embodiment of the present invention, a radio network node receives a COT sharing indication from a wireless terminal. The COT sharing indication is associated with sharing a COT initiated by the wireless terminal. For example, the COT sharing indication includes at least one of the following: a starting point, a duration, or a set of available resource blocks of the COT.

[0192] In an embodiment, the COT sharing indication is used to indicate that the COT is not available for transmission from the wireless network node to the wireless terminal and / or transmission from the wireless terminal to the wireless network node, for example, enabling SL transmission to share the COT initiated by the wireless terminal.

[0193] In an embodiment, the COT sharing indication is used to indicate that the COT can be used for communication with the radio network node, for example, so that the SL transmission can share the COT initiated by the COT. In this embodiment, the wireless terminal sends an indication associated with the time slot reserved for SL transmission in the COT to the radio network node. For example, the indication associated with the time slot reserved for SL transmission in the COT may include at least one of the following:

[0194] a bitmap associated with time slots in the COT reserved and / or not reserved for transmission of the SL,

[0195] The priority value of each SL transmission in the COT, or

[0196] The CAPC transmitted by each SL in the COT.

[0197] In an embodiment, the wireless terminal uses resource allocation mode 2 in the COT to perform the SL transmission.

[0198] In an embodiment, the COT sharing indication does not include at least one of the following: a bitmap associated with time slots reserved and / or unreserved for sidelink SL transmission in the COT, a priority value for each SL transmission in the COT, or a CAPC for each SL transmission in the COT. In this embodiment, the wireless terminal uses resource allocation mode 1 for SL transmission in the COT.

[0199] Figure 8 A flow chart of a method according to an embodiment of the present disclosure is shown. Figure 8 The method shown can be used in a wireless terminal, and includes the following steps:

[0200] Step 801: Receive at least one channel occupancy time (COT) sharing parameter associated with executing a resource allocation mechanism from a radio network node, wherein the resource allocation mechanism is used to share the COT initiated by the radio network node with a side link SL communication.

[0201] In this embodiment, the wireless terminal receives at least one COT sharing parameter from the radio network node. The at least one COT sharing parameter is associated with executing a resource allocation mechanism for sharing a COT initiated by the radio network node using sidelink communication.

[0202] In an embodiment, the at least one COT sharing parameter comprises at least one of the following: a starting point, a duration or a set of available resource blocks of the COT.

[0203] Fig. 9 A flow chart of a method according to an embodiment of the present disclosure is shown. Fig. 9 The method shown may be used in a wireless network node and comprises the following steps:

[0204] Step 901: Send at least one COT sharing parameter to a wireless terminal, wherein the COT sharing parameter is associated with executing a resource allocation mechanism, wherein the resource allocation mechanism is used to share a COT initiated by the radio network node with a side link SL communication.

[0205] In this embodiment, the radio network node sends at least one COT sharing parameter to the wireless terminal. The at least one COT sharing parameter is associated with executing a resource allocation mechanism for sharing the COT initiated by the radio network node with the side link SL communication.

[0206] In an embodiment, the at least one COT sharing parameter comprises at least one of the following: a starting point, a duration or a set of available resource blocks of the COT.

[0207] Fig.10A flow chart of a method according to an embodiment of the present disclosure is shown. Fig.10 The method shown in can be used in a wireless terminal, comprising the following steps:

[0208] Step 1001: After an uplink transmission in a COT initiated by a wireless terminal for a sidelink transmission, a downlink transmission is performed from a wireless network node to the wireless terminal.

[0209] In this embodiment, after an uplink transmission in a COT initiated for a sidelink transmission, the wireless terminal performs a DL transmission (ie, a transmission from a radio network node to the wireless terminal).

[0210] In an embodiment, an energy detection threshold parameter (e.g., sl-toDL-COT-SharingED-Threshold-r16) associated with sharing the COT with downlink transmissions from the radio network node to the wireless terminal is not provided. In this embodiment, the DL transmission does not include a unicast transmission with user plane data. Alternatively or additionally, the duration of the DL transmission is no greater than m symbols, where m is a positive integer determined based on the subcarrier spacing of the channel corresponding to the unicast transmission.

[0211] In an embodiment, the gap between UL transmission and DL transmission is below a threshold (eg, 16 microseconds). In such a case, the wireless terminal performs a type 2C downlink channel access procedure for DL ​​transmission.

[0212] In an embodiment, the gap between UL transmission and DL transmission is greater than or equal to a threshold (eg, 16 microseconds or 25 microseconds). In this embodiment, the wireless terminal performs a type 2A downlink channel access procedure or a type 2B downlink channel access procedure for DL ​​transmission.

[0213] In an embodiment, an energy detection threshold parameter (e.g., sl-toDL-COT-SharingED-Threshold-r16) associated with sharing the COT for downlink transmission from the radio network node to the wireless terminal is provided. In this embodiment, the wireless terminal may receive a high-level parameter (e.g., cg-COT-SharingList-r16) from the radio network node, the high-level parameter being associated with a table including a row configured to indicate that COT sharing is available or unavailable for at least one of UL communication or DL ​​communication.

[0214] In an embodiment, the wireless terminal sends a COT sharing indication associated with sharing a COT initiated by the wireless terminal to the radio network node. It should be noted that the COT sharing indication indicates at least one COT sharing parameter via a table, and the at least one COT sharing parameter includes at least one of an offset associated with starting to share the COT, a duration of the COT, or a channel access priority level for DL ​​transmission.

[0215] In an embodiment, a wireless terminal sends a COT sharing indication associated with sharing a COT initiated by the wireless terminal to a wireless network node. In this embodiment, the row in the table indicated by the COT sharing indication is used to indicate that the COT initiated by the wireless terminal is not available for communication between the wireless network node and the wireless terminal. Under this condition, a COT is initiated for the communication between the wireless network node and the wireless terminal.

[0216] Fig.11 A flow chart of a method according to an embodiment of the present disclosure is shown. Fig.11 The method shown in can be used in a wireless network node and comprises the following steps:

[0217] Step 1101: After uplink transmission and / or SL transmission in the channel occupancy time COT initiated by the wireless terminal for side link SL transmission, perform downlink transmission from the wireless network node to the wireless terminal.

[0218] In this embodiment, the radio network node performs a DL transmission (ie, from the radio network node to the wireless terminal) after an uplink transmission in a COT and / or a SL transmission initiated by the wireless terminal for the SL transmission.

[0219] In an embodiment, an energy detection threshold parameter (e.g., sl-toDL-COT-SharingED-Threshold-r16) associated with sharing the COT with downlink transmissions from the radio network node to the wireless terminal is not provided. In this embodiment, the DL transmission does not include a unicast transmission with user plane data. Alternatively or additionally, the duration of the DL transmission is no greater than m symbols, where m is a positive integer determined based on the subcarrier spacing of the channel corresponding to the unicast transmission.

[0220] In an embodiment, the gap between UL transmission or SL transmission and DL transmission is below a threshold (eg, 16 microseconds). In such a case, the radio network node performs a type 2C downlink channel access procedure for the DL transmission.

[0221] In an embodiment, the gap between UL transmission or SL transmission and DL transmission is greater than or equal to a threshold (eg, 16 microseconds or 25 microseconds).In this embodiment, the radio network node performs a type 2A downlink channel access procedure or a type 2B downlink channel access procedure for DL ​​transmission.

[0222] In an embodiment, an energy detection threshold parameter (e.g., sl-toDL-COT-SharingED-Threshold-r16) associated with sharing the COT for downlink transmission from the radio network node to the wireless terminal is provided. In this embodiment, the radio network node may send a higher layer parameter (e.g., cg-COT-SharingList-r16) associated with a table to the wireless terminal, the table comprising a row for indicating that COT sharing is available or unavailable for at least one of UL communication or DL ​​communication.

[0223] In an embodiment, the radio network node receives a COT sharing indication from the wireless terminal related to sharing a COT initiated by the wireless terminal. It should be noted that the COT sharing indication indicates at least one COT sharing parameter via a table, and the at least one COT sharing parameter includes at least one of an offset associated with starting to share the COT, a duration of the COT, or a channel access priority level for DL ​​transmission.

[0224] In an embodiment, the radio network node receives a COT sharing indication associated with sharing a COT initiated by the wireless terminal with the radio network node. In this embodiment, the row in the table indicated by the COT sharing indication indicates that the COT initiated by the wireless terminal is not available for communication between the radio network node and the wireless terminal. Under this condition, the radio network node initiates the COT for communication between the radio network node and the wireless terminal.

[0225] Fig.12 A flow chart of a method according to an embodiment of the present disclosure is shown. Fig.12 The method shown can be used in a wireless terminal, and includes the following steps:

[0226] Step 1201: During the channel occupation time COT, a first type of communication with a configured grant is performed on a channel by using a channel access procedure with a first priority level.

[0227] In this embodiment, during the channel occupation time COT, the wireless terminal performs a first type of communication with a configured grant on the channel by using a channel access procedure with a first priority level.

[0228] In an embodiment, the wireless terminal is scheduled to perform a second type of communication on at least part of the resource blocks of the channel after the first type of communication in the COT by using a channel access procedure without cyclic prefix extension and with a second priority level. Under this condition, if the first priority level is greater than or equal to the second priority level, and the sum of the duration of the first type of communication and the duration of the second type of communication does not exceed the COT duration associated with the first priority level, the second type of communication is performed without gaps after the first type of communication. If the first priority level is less than the second priority level, the first type of communication is terminated on the resource blocks (RBs) occupied by the second type of communication.

[0229] In an embodiment, the wireless terminal is scheduled to perform a second type of communication on the same carrier of the channel after the first type of communication in the COT by using a channel access procedure without CP extension and with a second priority level. In this embodiment, if the first priority level is greater than or equal to the second priority level, and the sum of the durations of the first type of communication and the second type of communication does not exceed the COT duration associated with the first priority level, the wireless terminal performs the second type of communication by at least one of the following:

[0230] - performing said second type of communication without gaps after said first type of communication, or

[0231] - When both said first and second communications are scheduled and configured simultaneously, only said second type of communication is performed.

[0232] In addition, if the first priority level is lower than the second priority level, the first type of communication is terminated on the RB occupied by the second type of communication.

[0233] It is to be noted that the first type communication is one of SL communication and UL communication, and the second type communication is the other of SL communication and UL communication.

[0234] Fig.13 A flow chart of a method according to an embodiment of the present disclosure is shown. Fig.12 The method shown can be used in a wireless terminal, and includes the following steps:

[0235] Step 1301: Perform a channel access procedure for a first type of communication and / or a second type of communication within a channel occupation time COT initiated for the first type of communication and / or the second type of communication.

[0236] exist Fig.13In the embodiment of the present invention, the wireless terminal performs a channel access procedure for a first type of communication and / or a second type of communication in the COT. The COT is (initiated) for the first type of communication and / or the second type of communication. In this case, based on at least one channel availability detection parameter associated with the first type of communication and at least one channel availability detection parameter associated with the second type of communication, at least one channel availability detection parameter of the channel access procedure is determined.

[0237] In an embodiment, the at least one channel availability detection parameter includes an energy detection threshold associated with determining an idle state and / or a busy state of a channel. For example, the energy detection threshold of the channel access process is set to one of a minimum value, an average value, or a maximum value between the energy detection threshold associated with the first type of communication and the energy detection threshold associated with the second type of communication.

[0238] In an embodiment, the at least one channel availability detection parameter comprises a congestion window length associated with determining the availability of a channel. For example, the congestion window length of the channel access procedure is set to one of a maximum, an average, or a minimum between the congestion window length associated with the first type of communication and the congestion window length associated with the second type of communication.

[0239] It is to be noted that the first type communication is one of SL communication and UL communication, and the second type communication is the other of SL communication and UL communication.

[0240] Fig.14 A flow chart showing a method according to an embodiment of the present disclosure is shown. Fig.14 The method shown can be used in a wireless terminal, and includes the following steps:

[0241] Step 1401: receiving high-layer signaling associated with configuration or pre-configuration from a radio network node, wherein the configuration or pre-configuration is about whether to allow a first type of communication within a channel occupancy time COT for a second type of communication initiated by the wireless terminal.

[0242] In this embodiment, the wireless terminal receives high-layer signaling associated with configuration or pre-configuration of whether the first type of communication is allowed within the channel occupancy time for the second type of communication initiated by the wireless terminal.

[0243] In an embodiment, the first type of communication is one of SL communication and communication with the wireless network node, and the second type of communication is the other of the SL communication and communication with the wireless network node, wherein the communication with the wireless network node includes at least one of UL communication / transmission or DL ​​communication / transmission.

[0244] Fig.15 A flow chart showing a method according to an embodiment of the present disclosure is shown. Fig.15 The method shown in can be used in a wireless network node and comprises the following steps:

[0245] Step 1501: Send high-layer signaling associated with configuration or pre-configuration to a wireless terminal, wherein the configuration or pre-configuration is about whether a first type of communication is allowed within a channel occupancy time COT for a second type of communication initiated by the wireless terminal.

[0246] In this embodiment, the radio network node sends a high-layer signaling to the wireless terminal. The high-layer signaling is associated with the configuration or pre-configuration of whether the first type of communication is allowed in the COT for the second type of communication initiated by the wireless terminal.

[0247] In an embodiment, the sidelink control information / indicator (SCI) signaling (e.g., first-stage SCI, second-stage SCI, or any other form of SCI) may also be used to indicate the sidelink control information / indicator. Fig.14 and / or Fig.15 The high-layer signaling listed in is transmitted from another wireless terminal to the wireless terminal. Fig.14 and / or Fig.15 The information in the higher layer signaling in may also be transmitted from the wireless node to the wireless terminal using downlink control information / indicator signaling on downlink control information / indicator signaling (e.g., DCI on either or both of the licensed spectrum and / or unlicensed spectrum).

[0248] In an embodiment, the first type of communication is one of SL communication and communication with the wireless network node, and the second type of communication is the other of the SL communication and communication with the wireless network node, wherein the communication with the wireless network node includes at least one of UL communication / transmission or DL ​​communication / transmission.

[0249] Although various embodiments of the present disclosure have been described above, it should be understood that these embodiments are presented only by way of example and not by way of limitation. Similarly, different figures may depict example architectures or configurations, which are provided so that those of ordinary skill in the art can understand the exemplary features and functions of the present disclosure. However, such personnel will understand that the present disclosure is not limited to the example architectures or configurations shown, but can be implemented using various replacement architectures and configurations. In addition, as those of ordinary skill in the art will understand, one or more features of an embodiment may be combined with one or more features of another embodiment described herein. Therefore, the breadth and scope of the present disclosure should not be limited by any of the above-described exemplary embodiments.

[0250] It should also be understood that any reference to an element using names such as "first," "second," etc., herein generally does not limit the quantity or order of those elements. Rather, these designations may be used herein as a convenient means of distinguishing between two or more elements or instances of an element. Thus, reference to a first and a second element does not mean that only two elements may be employed, or that the first element must precede the second element in some manner.

[0251] In addition, those skilled in the art will understand that information and signals may be represented using any of a variety of different technologies and techniques. For example, data, instructions, commands, information, signals, bits, and symbols that may be referenced in the above description may be represented by voltage, current, electromagnetic waves, magnetic fields or magnetic particles, optical fields or optical particles, or any combination thereof.

[0252] Those skilled in the art will further appreciate that any of the different illustrative logical blocks, units, processors, devices, circuits, methods, and functions described in connection with the aspects disclosed herein may be implemented by electronic hardware (e.g., digital embodiments, analog embodiments, or a combination of both), firmware, different forms of programs or design codes incorporating instructions (which, for convenience, may be referred to herein as "software" or "software units"), or any combination of these techniques.

[0253] In order to clearly illustrate this interchangeability of hardware, firmware and software, various illustrative components, blocks, units, circuits and steps have been described above in their functional aspects as a whole. Whether these functions are implemented as hardware, firmware or software, or a combination of these technologies depends on the specific application and the design constraints imposed on the entire system. Those skilled in the art can implement the described functionality in different ways for each specific application, but such implementation decisions will not lead to departure from the scope of this disclosure. According to various embodiments, processors, devices, components, circuits, structures, machines, units, etc. may be configured to perform one or more functions described herein. As used herein, the term "set to" or "set for" refers to a processor, device, component, circuit, structure, machine, unit, etc. that is physically constructed, programmed and / or arranged to perform a specified operation or function.

[0254] In addition, it will be understood by those skilled in the art that the different illustrative logic blocks, units, devices, components, and circuits described herein may be implemented within or performed by an integrated circuit (IC), which may include a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA), or other programmable logic device, or any combination thereof. The logic blocks, units, and circuits may also include antennas and / or transceivers to communicate with various components within a network or within a device. A general-purpose processor may be a microprocessor, but in an alternative, the processor may be any conventional processor, controller, or state machine. The processor may also be implemented as a combination of computing devices, such as a combination of a DSP and a microprocessor, a plurality of microprocessors, or a microprocessor in combination with a DSP core or more, or any other suitable arrangement for performing the functions described herein. If implemented in software, the functions may be stored as one or more instructions or codes on a computer-readable medium. Therefore, the steps of the method or algorithm disclosed herein may be implemented as software stored on a computer-readable medium.

[0255] Computer-readable media include both computer storage media and communication media, including any media capable of transferring a computer program or code from one place to another. Storage media can be any available media that can be accessed by a computer. By way of example and not limitation, such computer-readable media may include RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other media that can be used to store desired program code in the form of instructions or data structures and that can be accessed by a computer.

[0256] In this document, the term "unit" as used herein refers to software, firmware, hardware, and any combination of these elements for performing the associated functions described herein. In addition, for the purpose of discussion, various units are described as discrete units; however, as will be apparent to one of ordinary skill in the art, two or more units may be combined to form a single unit that performs the associated functions according to embodiments of the present disclosure.

[0257] In addition, memory or other storage, and communication components can be adopted in the embodiments of the present disclosure. It should be understood that, for the sake of clarity, the above description has described the embodiments of the present disclosure with reference to different functional units and processors. However, it will be apparent that any suitable distribution of functions between different functional units, processing logic elements or domains can be used without departing from the present disclosure. For example, the functions shown as being performed by a separate processing logic element or controller can be performed by the same processing logic element or controller. Therefore, reference to a specific functional unit is only a reference to a suitable means for providing the described functions, rather than indicating a strict logical or physical structure or organization.

[0258] Various modifications to the embodiments described in this disclosure will be apparent to those skilled in the art, and the general principles defined herein may be applied to other embodiments without departing from the scope of the claims. Thus, the present disclosure is not intended to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the novel features and principles disclosed herein, as set forth in the claims below.

Claims

1. A wireless communication method used in a wireless terminal, the wireless communication method comprising: sending a COT sharing indication associated with sharing a channel occupancy time COT initiated by the wireless terminal to a radio network node, The COT sharing indication includes at least one of the following: a starting point, a duration or a set of available resource blocks of the COT.

2. The wireless communication method according to claim 1, wherein: The COT sharing indication is used to indicate that the COT is not available for transmission from the radio network node to the wireless terminal and / or transmission from the wireless terminal to the radio network node.

3. The wireless communication method according to claim 1, wherein: The COT sharing indication is used to indicate that the COT can be used for communication with the radio network node, Wherein, the wireless communication method further includes: An indication associated with a time slot reserved for sidelink SL transmission in the COT is sent to the radio network node.

4. The wireless communication method according to claim 3, wherein: The indication associated with the time slots reserved for the SL transmission in the COT includes at least one of: a bitmap associated with the time slots reserved and / or not reserved for the SL transmission in the COT, a priority value of each SL transmission in the COT, or a channel access priority level CAPC for each SL transmission in the COT.

5. The wireless communication method according to claim 3 or 4, wherein: The wireless terminal uses resource allocation mode 2 in the COT to perform the SL transmission.

6. The wireless communication method according to any one of claims 1 to 5, wherein: The COT sharing indication does not include at least one of: a bitmap associated with time slots reserved and / or unreserved for sidelink SL transmissions in the COT, a priority value for each SL transmission in the COT, or a channel access priority level CAPC for each SL transmission in the COT, and The wireless terminal adopts resource allocation mode 1 to perform SL transmission in the COT.

7. A wireless communication method used in a wireless network node, the wireless communication method comprising: receiving, from a wireless terminal, a COT sharing indication associated with sharing a channel occupancy time COT initiated by the wireless terminal, The COT sharing indication includes at least one of the following: a starting point, a duration or a set of available resource blocks of the COT.

8. The wireless communication method according to claim 7, wherein: The COT sharing indication is used to indicate that the COT is not available for transmission from the radio network node to the wireless terminal and / or transmission from the wireless terminal to the radio network node.

9. The wireless communication method according to claim 7, wherein: The COT sharing indication is used to indicate that the COT can be used for communication with the wireless network node, and the wireless communication method further includes: An indication associated with a time slot reserved for sidelink SL transmission in the COT is received from the wireless terminal.

10. The wireless communication method according to claim 9, wherein: The indication associated with the time slots reserved for the SL transmission in the COT includes at least one of: a bitmap associated with the time slots reserved and / or not reserved for the SL transmission in the COT, a priority value of each SL transmission in the COT, or a channel access priority level CAPC for each SL transmission in the COT.

11. The wireless communication method according to claim 9 or 10, wherein: The wireless terminal uses resource allocation mode 2 in the COT to perform the SL transmission.

12. The wireless communication method according to any one of claims 7 to 11, wherein: The COT sharing indication does not include at least one of: a bitmap associated with time slots reserved and / or unreserved for sidelink SL transmissions in the COT, a priority value for each SL transmission in the COT, or a channel access priority level CAPC for each SL transmission in the COT, and The wireless terminal adopts resource allocation mode 1 to perform SL transmission in the COT.

13. A wireless communication method used in a wireless terminal, the wireless communication method comprising: At least one channel occupancy time (COT) sharing parameter associated with executing a resource allocation mechanism for sharing a COT initiated by the radio network node with a sidelink (SL) communication is received from a radio network node.

14. The wireless communication method according to claim 13, wherein: The at least one COT sharing parameter includes at least one of the following: a starting point, a duration, or a set of available resource blocks of the COT.

15. A wireless communication method used in a wireless network node, the wireless communication method comprising: After the uplink transmission and / or SL transmission in the channel occupancy time COT initiated by the wireless terminal for the side link SL transmission, a downlink transmission from the radio network node to the wireless terminal is performed.

16. The wireless communication method according to claim 15, wherein: not providing an energy detection threshold parameter associated with sharing the COT for downlink transmissions from the radio network node to the wireless terminal, and The downlink transmission does not include unicast transmission with user plane data.

17. The wireless communication method according to claim 15 or 16, wherein: not providing an energy detection threshold parameter associated with sharing the COT for downlink transmissions from the radio network node to the wireless terminal, and The duration of the downlink transmission is no more than m symbols, where m is a positive integer determined based on the subcarrier spacing of the channel corresponding to the unicast transmission.

18. The wireless communication method according to any one of claims 15 to 17, wherein: The gap between the uplink transmission or the SL transmission and the downlink transmission is lower than a threshold, and Wherein, the wireless communication method further includes: A type 2C downlink channel access procedure is performed for the downlink transmission.

19. The wireless communication method according to any one of claims 15 to 17, wherein: The gap between the uplink transmission or the SL transmission and the downlink transmission is greater than or equal to a threshold; and Wherein, the wireless communication method further includes: A type 2A downlink channel access procedure or a type 2B downlink channel access procedure is performed for the downlink transmission.

20. The wireless communication method according to claim 15, wherein: providing an energy detection threshold parameter associated with sharing the COT for downlink transmissions from the radio network node to the wireless terminal, and Wherein, the wireless communication method further includes: A higher layer parameter associated with a table is sent to the wireless terminal, wherein the table includes a row configured to indicate that sharing of the COT is available or unavailable for at least one of uplink communication or downlink communication.

21. The wireless communication method according to claim 20, further comprising: receiving, from the wireless terminal, a COT sharing indication associated with sharing a COT initiated by the wireless terminal, wherein the COT sharing indication indicates at least one COT sharing parameter via the table, and The at least one COT sharing parameter includes at least one of the following: an offset associated with starting to share the COT, a duration of the COT, or a channel access priority level CAPC of the downlink transmission.

22. The wireless communication method according to claim 20 or 21, further comprising: receiving, from the wireless terminal, a COT sharing indication associated with sharing a COT initiated by the wireless terminal, wherein the row in the table indicated by the COT sharing indication is used to indicate that the COT initiated by the wireless terminal is not available for communication between the radio network node and the wireless terminal, and A COT is initiated for the communication between the radio network node and the wireless terminal.

23. A wireless communication method used in a wireless terminal, the wireless communication method comprising: performing a first type of communication with a configured grant on the channel by using a channel access procedure with a first priority level during the channel occupation time COT, wherein, in the COT, scheduling performs a second type of communication on at least part of the resource blocks of the channel after the first type of communication by using a channel access procedure without cyclic prefix extension and having a second priority level, wherein if the first priority level is greater than or equal to the second priority level and the sum of the duration of the first type of communication and the duration of the second type of communication does not exceed the COT duration associated with the first priority level, the second type of communication is performed without gaps after the first type of communication, and Wherein, if the first priority level is lower than the second priority level, terminating the first type of communication on the resource blocks occupied by the second type of communication.

24. A wireless communication method used in a wireless terminal, the wireless communication method comprising: performing a first type of communication with a configured grant on the channel by using a channel access procedure with a first priority level during the channel occupation time COT, wherein, in the COT, scheduling performs a second type of communication on the same carrier of the channel after the first type of communication by using a channel access procedure without cyclic prefix extension and having a second priority level, Wherein, if the first priority level is greater than or equal to the second priority level, and the sum of the duration of the first type of communication and the duration of the second type of communication does not exceed the COT duration associated with the first priority level, performing the second type of communication by at least one of the following: performing the second type of communication without gaps after the first type of communication, or When the first type of communication and the second type of communication are scheduled and configured simultaneously, only the second type of communication is performed; and Wherein, if the first priority level is lower than the second priority level, terminating the first type of communication on the resource blocks occupied by the second type of communication.

25. The wireless communication method according to claim 23 or 24, wherein: The first type of communication is one of sidelink (SL) communication and uplink communication, and the second type of communication is the other of the SL communication and the uplink communication.

26. A wireless communication method used in a wireless terminal, the wireless communication method comprising: performing a channel access procedure for the first type of communication and / or the second type of communication within a channel occupation time COT initiated for the first type of communication and / or the second type of communication, Therein, at least one channel availability detection parameter of the channel access process is determined based on the at least one channel availability detection parameter associated with the first type of communication and the at least one channel availability detection parameter associated with the second type of communication.

27. The wireless communication method according to claim 26, wherein: The at least one channel availability detection parameter includes an energy detection threshold associated with determining an idle state and / or a busy state of a channel, and The energy detection threshold of the channel access process is set to one of a minimum value, an average value or a maximum value between the energy detection threshold associated with the first type of communication and the energy detection threshold associated with the second type of communication.

28. The wireless communication method according to claim 26 or 27, wherein: The at least one channel availability detection parameter includes a congestion window length associated with determining the availability of a channel, and The congestion window length of the channel access process is set to one of a maximum value, an average value or a minimum value between the congestion window length associated with the first type of communication and the congestion window length associated with the second type of communication.

29. The wireless communication method according to any one of claims 26 to 28, wherein: The first type of communication is one of sidelink (SL) communication and uplink communication, and the second type of communication is the other of the SL communication and the uplink communication.

30. A wireless communication method used in a wireless terminal, the wireless communication method comprising: A higher layer signaling associated with configuration or pre-configuration is received from a radio network node, wherein the configuration or pre-configuration is about whether a first type of communication is allowed within a channel occupancy time COT for a second type of communication initiated by the wireless terminal.

31. The wireless communication method according to claim 30, wherein: The first type of communication is one of sidelink (SL) communication and communication with the radio network node, and the second type of communication is the other of the SL communication and communication with the radio network node, and The communication with the wireless network node includes at least one of uplink communication and downlink communication.

32. A wireless communication method used in a wireless network node, the wireless communication method comprising: A higher layer signaling associated with configuration or pre-configuration is sent to a wireless terminal, wherein the configuration or pre-configuration is about whether a first type of communication is allowed within a channel occupancy time COT for a second type of communication initiated by the wireless terminal.

33. The wireless communication method according to claim 32, wherein: The first type of communication is one of sidelink (SL) communication and communication with the radio network node, and the second type of communication is the other of the SL communication and communication with the radio network node, and The communication with the wireless network node includes at least one of uplink communication and downlink communication.

34. A wireless terminal, comprising: a communication unit, configured to send a channel occupancy time (COT) sharing indication associated with sharing the COT initiated by the wireless terminal to a wireless network node, The COT sharing indication includes at least one of the following: a starting point, a duration or a set of available resource blocks of the COT.

35. The wireless terminal according to claim 34, further comprising a processor, wherein the processor is configured to execute the wireless communication method according to any one of claims 2 to 6.

36. A wireless network node, comprising: a communication unit, configured to receive, from a wireless terminal, a COT sharing indication associated with sharing a channel occupancy time COT initiated by the wireless terminal, The COT sharing indication includes at least one of the following: a starting point, a duration or a set of available resource blocks of the COT.

37. The wireless network node according to claim 36, further comprising a processor, wherein the processor is configured to execute the wireless communication method according to any one of claims 8 to 12.

38. A wireless terminal, comprising: A communication unit is configured to receive at least one channel occupancy time (COT) sharing parameter associated with executing a resource allocation mechanism from a radio network node, wherein the resource allocation mechanism is used to share the COT initiated by the radio network node with a side link SL communication.

39. The wireless terminal according to claim 38, further comprising a processor, wherein the processor is configured to execute the wireless communication method according to claim 14.

40. A wireless network node, comprising: a communication unit, and The processor is configured to perform a downlink transmission from the radio network node to the wireless terminal after an uplink transmission and / or an SL transmission in a channel occupancy time COT initiated by the wireless terminal for a side link SL transmission.

41. The wireless network node of claim 40, wherein: The processor is further configured to execute the wireless communication method according to any one of claims 16 to 22.

42. A wireless terminal, comprising: a communication unit, and a processor for performing, during a channel occupation time COT, a first type of communication on the channel with a configured grant by using a channel access procedure with a first priority level, wherein, in the COT, scheduling performs a second type of communication on at least part of the resource blocks of the channel after the first type of communication by using a channel access procedure without cyclic prefix extension and having a second priority level, wherein if the first priority level is greater than or equal to the second priority level and the sum of the duration of the first type of communication and the duration of the second type of communication does not exceed the COT duration associated with the first priority level, the second type of communication is performed without gaps after the first type of communication, and Wherein, if the first priority level is lower than the second priority level, terminating the first type of communication on the resource blocks occupied by the second type of communication.

43. A wireless terminal, comprising: a communication unit, and a processor for performing, during a channel occupation time COT, a first type of communication on the channel with a configured grant by using a channel access procedure with a first priority level, wherein, in the COT, scheduling performs a second type of communication on the same carrier of the channel after the first type of communication by using a channel access procedure without cyclic prefix extension and having a second priority level, Wherein, if the first priority level is greater than or equal to the second priority level, and the sum of the duration of the first type of communication and the duration of the second type of communication does not exceed the COT duration associated with the first priority level, performing the second type of communication by at least one of the following: performing the second type of communication without gaps after the first type of communication, or When the first type of communication and the second type of communication are scheduled and configured simultaneously, only the second type of communication is performed; and Wherein, if the first priority level is lower than the second priority level, terminating the first type of communication on the resource blocks occupied by the second type of communication.

44. The wireless terminal according to claim 43 or 44, wherein: The processor is further configured to perform the wireless communication method according to claim 25.

45. A wireless terminal, comprising: a communication unit, and a processor, configured to perform a channel access procedure for the first type of communication and / or the second type of communication within a channel occupation time COT initiated for the first type of communication and / or the second type of communication, Therein, at least one channel availability detection parameter of the channel access process is determined based on the at least one channel availability detection parameter associated with the first type of communication and the at least one channel availability detection parameter associated with the second type of communication.

46. ​​The wireless terminal according to claim 46, wherein: The processor is further configured to execute the wireless communication method of any one of claims 27 to 29.

47. A wireless terminal, comprising: A communication unit is configured to receive high-layer signaling associated with configuration or pre-configuration from a radio network node, wherein the configuration or pre-configuration is about whether a first type of communication is allowed within a channel occupancy time COT for a second type of communication initiated by the wireless terminal.

48. The wireless terminal according to claim 48, further comprising a processor, wherein the processor is configured to execute the wireless communication method according to claim 31.

49. A wireless network node, comprising: A communication unit is configured to send high-layer signaling associated with configuration or pre-configuration to a wireless terminal, wherein the configuration or pre-configuration is about whether a first type of communication is allowed within a channel occupancy time COT for a second type of communication initiated by the wireless terminal.

50. The wireless network node of claim 50, further comprising a processor, wherein the processor is configured to execute the wireless communication method of claim 33.

51. A computer program product comprising computer readable program code stored thereon, which, when executed by a processor, causes the processor to implement the wireless communication method according to any one of claims 1 to 33.

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