Hybrid automatic repeat request feedback during and out of channel occupancy times

Abstract

Aspects of the present disclosure generally relate to wireless communications. In some aspects, a user equipment (UE) may determine whether a physical sidelink feedback channel (PSFCH) transmission is scheduled during a channel occupancy time (COT). Thus, the UE may transmit the PSFCH transmission using a first set of resources based at least in part on a determination that the PSFCH transmission is scheduled outside of the COT. Alternatively, the UE may transmit the PSFCH transmission using a second set of resources based at least in part on a determination that the PSFCH transmission is scheduled within the COT. Numerous other aspects are described.

Description

Technical Field

[0001] Aspects of the present disclosure relate generally to wireless communications and to techniques and apparatus for sending and receiving hybrid automatic repeat request feedback during and outside of channel occupancy time. Background Art

[0002] Wireless communication systems are widely deployed to provide a variety of telecommunication services, such as telephony, video, data, messaging, and broadcasting. Typical wireless communication systems may employ multiple access technologies that can support communication with multiple users by sharing available system resources (e.g., bandwidth, transmit power, etc.). Examples of such multiple access technologies include code division multiple access (CDMA) systems, time division multiple access (TDMA) systems, frequency division multiple access (FDMA) systems, orthogonal frequency division multiple access (OFDMA) systems, single carrier frequency division multiple access (SC-FDMA) systems, time division synchronous code division multiple access (TD-SCDMA) systems, and long term evolution (LTE). LTE / LTE-Advanced is a set of enhancements to the Universal Mobile Telecommunications System (UMTS) mobile standard promulgated by the Third Generation Partnership Project (3GPP).

[0003] A wireless network may include one or more network nodes that support communications for wireless communication devices, such as user equipment (UE) or multiple UEs. The UE may communicate with the network node via downlink communications and uplink communications. A "downlink" (or "DL") refers to a communication link from a network node to a UE, and an "uplink" (or "UL") refers to a communication link from a UE to a network node. Some wireless networks may support device-to-device communications, such as via a local link (e.g., a side link (SL), a wireless local area network (WLAN) link, and / or a wireless personal area network (WPAN) link, etc.).

[0004] The above multiple access technologies have been adopted in various telecommunication standards to provide a common protocol that enables different UEs to communicate at a city, country, region, and / or global level. New Radio (NR), which may be referred to as 5G, is a set of enhancements to the LTE mobile standard promulgated by 3GPP. NR is designed to better support mobile broadband Internet access by improving spectral efficiency, reducing costs, improving services, utilizing new spectrum, and better integrating with other open standards by using orthogonal frequency division multiplexing (OFDM) with cyclic prefix (CP) (CP-OFDM) on the downlink, CP-OFDM and / or single carrier frequency division multiplexing (SC-FDM) (also known as discrete Fourier transform spread OFDM (DFT-s-OFDM)) on the uplink, as well as supporting beamforming, multiple input multiple output (MIMO) antenna technology, and carrier aggregation. As the demand for mobile broadband access continues to increase, further improvements in LTE, NR, and other radio access technologies remain useful. Summary of the invention

[0005] Some aspects described herein relate to a method of wireless communication performed by a user equipment (UE). The method may include determining whether a physical sidelink feedback channel (PSFCH) transmission is scheduled during a channel occupancy time (COT). The method may include transmitting the PSFCH transmission using a first set of resources based at least in part on determining that the PSFCH transmission is scheduled outside the COT, or transmitting the PSFCH transmission using a second set of resources based at least in part on determining that the PSFCH transmission is scheduled within the COT.

[0006] Some aspects described herein relate to a method of wireless communication performed by a UE. The method may include: monitoring a PSFCH using a first set of resources associated with feedback received during a COT. Additionally or alternatively, the method may include: monitoring the PSFCH using a second set of resources associated with feedback received outside the COT.

[0007] Some aspects described herein relate to a method of wireless communication performed by a UE. The method may include determining whether a PSFCH transmission is scheduled during a COT. The method may include sending the PSFCH transmission according to a hybrid automatic repeat request (HARQ) timeline set based at least in part on determining that the PSFCH transmission is scheduled outside the COT, or sending the PSFCH transmission according to a subset of the HARQ timeline set based at least in part on determining that the PSFCH transmission is scheduled within the COT.

[0008] Some aspects described herein relate to a method of wireless communication performed by a UE. The method may include monitoring a PSFCH according to a subset of a HARQ timeline set associated with feedback received during a COT. The method may include monitoring the PSFCH according to remaining HARQ timelines in the HARQ timeline set associated with feedback received outside the COT based at least in part on not receiving feedback on the PSFCH during the subset of HARQ timelines.

[0009] Some aspects described herein relate to an apparatus for wireless communication at a UE. The apparatus may include a processor, a memory coupled to the processor, and instructions stored in the memory. The instructions may be executed by the processor so that the apparatus: determines whether a PSFCH transmission is scheduled during a COT. The instructions may be executed by the processor so that the apparatus: transmits the PSFCH transmission using a first set of resources based at least in part on determining that the PSFCH transmission is scheduled outside the COT, or transmits the PSFCH transmission using a second set of resources based at least in part on determining that the PSFCH transmission is scheduled within the COT.

[0010] Some aspects described herein relate to an apparatus for wireless communication at a UE. The apparatus may include a processor, a memory coupled to the processor, and instructions stored in the memory. The instructions may be executed by the processor so that the apparatus: monitors a PSFCH using a first set of resources associated with feedback received during a COT. Additionally or alternatively, the instructions may be executed by the processor so that the apparatus: monitors the PSFCH using a second set of resources associated with feedback received outside the COT.

[0011] Some aspects described herein relate to an apparatus for wireless communication at a UE. The apparatus may include a processor, a memory coupled to the processor, and instructions stored in the memory. The instructions may be executed by the processor so that the apparatus: determine whether a PSFCH transmission is scheduled during a COT. The instructions may be executed by the processor so that the apparatus: send the PSFCH transmission according to a HARQ timeline set based at least in part on a determination that the PSFCH transmission is scheduled outside the COT, or send the PSFCH transmission according to a subset of the HARQ timeline set based at least in part on a determination that the PSFCH transmission is scheduled within the COT.

[0012] Some aspects described herein relate to an apparatus for wireless communication at a UE. The apparatus may include a processor, a memory coupled to the processor, and instructions stored in the memory. The instructions may be executed by the processor so that the apparatus: monitors the PSFCH according to a subset of a HARQ timeline set associated with feedback received during a COT. The instructions may be executed by the processor so that the apparatus: monitors the PSFCH according to the remaining HARQ timelines in the HARQ timeline set associated with feedback received outside the COT based at least in part on not receiving feedback on the PSFCH during the subset of HARQ timelines.

[0013] Some aspects described herein relate to a non-transitory computer-readable medium storing an instruction set for wireless communication by a UE. The instruction set, when executed by one or more processors of the UE, may cause the UE to: determine whether a PSFCH transmission is scheduled during a COT. The instruction set, when executed by one or more processors of the UE, may cause the UE to: send the PSFCH transmission using a first set of resources based at least in part on determining that the PSFCH transmission is scheduled outside the COT, or send the PSFCH transmission using a second set of resources based at least in part on determining that the PSFCH transmission is scheduled within the COT.

[0014] Some aspects described herein relate to a non-transitory computer-readable medium storing an instruction set for wireless communication by a UE. The instruction set, when executed by one or more processors of the UE, may cause the UE to: monitor a PSFCH using a first set of resources associated with feedback received during a COT. Additionally or alternatively, the instruction set, when executed by one or more processors of the UE, may cause the UE to: monitor the PSFCH using a second set of resources associated with feedback received outside the COT.

[0015] Some aspects described herein relate to a non-transitory computer-readable medium storing an instruction set for wireless communication by a UE. The instruction set, when executed by one or more processors of the UE, may cause the UE to: determine whether a PSFCH transmission is scheduled during a COT. The instruction set, when executed by one or more processors of the UE, may cause the UE to: send the PSFCH transmission according to a HARQ timeline set based at least in part on determining that the PSFCH transmission is scheduled outside the COT, or send the PSFCH transmission according to a subset of the HARQ timeline set based at least in part on determining that the PSFCH transmission is scheduled within the COT.

[0016] Some aspects described herein relate to a non-transitory computer-readable medium storing an instruction set for wireless communication by a UE. The instruction set, when executed by one or more processors of the UE, may cause the UE to: monitor a PSFCH according to a subset of a HARQ timeline set associated with feedback received during a COT. The instruction set, when executed by one or more processors of the UE, may cause the UE to: monitor the PSFCH according to the remaining HARQ timelines in the HARQ timeline set associated with feedback received outside the COT based at least in part on not receiving feedback on the PSFCH during the subset of HARQ timelines.

[0017] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include: means for determining whether a PSFCH transmission is scheduled during a COT. The apparatus may include: means for transmitting the PSFCH transmission using a first set of resources based at least in part on determining that the PSFCH transmission is scheduled outside the COT, or means for transmitting the PSFCH transmission using a second set of resources based at least in part on determining that the PSFCH transmission is scheduled within the COT.

[0018] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include: means for monitoring a PSFCH using a first set of resources associated with feedback received during a COT. Additionally or alternatively, the apparatus may include: means for monitoring the PSFCH using a second set of resources associated with feedback received outside the COT.

[0019] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include means for determining whether a PSFCH transmission is scheduled during a COT. The apparatus may include means for transmitting the PSFCH transmission according to a HARQ timeline set based at least in part on a determination that the PSFCH transmission is scheduled outside the COT, or means for transmitting the PSFCH transmission according to a subset of the HARQ timeline set based at least in part on a determination that the PSFCH transmission is scheduled within the COT.

[0020] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include means for monitoring a PSFCH according to a subset of a HARQ timeline set associated with feedback received during a COT. The apparatus may include means for monitoring the PSFCH according to remaining HARQ timelines in the HARQ timeline set associated with feedback received outside the COT based at least in part on not receiving feedback on the PSFCH during the subset of HARQ timelines.

[0021] The various aspects generally include methods, apparatus, systems, computer program products, non-transitory computer-readable media, user equipment, base stations, network entities, network nodes, wireless communication devices and / or processing systems as fully described herein with reference to the drawings and description and as illustrated in the drawings and description.

[0022] The features and technical advantages of examples according to the present disclosure have been outlined quite broadly above so that the following specific embodiments may be better understood. Additional features and advantages will be described below. The disclosed concepts and specific examples may be easily used as a basis for modifying or designing other structures for achieving the same purpose of the present disclosure. Such equivalent constructions do not depart from the scope of the appended claims. The characteristics of the concepts disclosed herein, both in terms of their organization and method of operation, and the associated advantages will be better understood by considering the following description in conjunction with the accompanying drawings. Each of the figures in the accompanying drawings is provided for the purpose of illustration and description, and not as a definition of the limitations of the claims.

[0023] Although various aspects are described in the present disclosure by illustrating some examples, it will be understood by those skilled in the art that such aspects can be implemented in many different arrangements and scenarios. The technology described herein can be implemented using different platform types, devices, systems, shapes, sizes and / or packaging arrangements. For example, some aspects can be implemented via integrated chip implementations or other non-module component-based devices (e.g., end-user devices, vehicles, communication devices, computing devices, industrial equipment, retail / shopping devices, medical devices and / or artificial intelligence devices). Various aspects can be implemented in chip-level components, modular components, non-modular components, non-chip-level components, device-level components and / or system-level components. The devices incorporating the various aspects and features described may include additional components and features for implementing and practicing the various aspects claimed and described. For example, the transmission and reception of wireless signals may include one or more components for analog and digital purposes (e.g., hardware components, including antennas, radio frequency (RF) chains, power amplifiers, modulators, buffers, processors, interleavers, adders and / or summers). The various aspects described herein are intended to be practiced in a variety of devices, components, systems, distributed arrangements and / or end-user devices of various sizes, shapes and configurations. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to fully understand the above-mentioned features of the present disclosure, a more specific description of the invention briefly summarized above can be obtained by referring to various aspects (some of which are illustrated in the accompanying drawings). However, it should be noted that the accompanying drawings only illustrate certain typical aspects of the present disclosure and are therefore not to be considered as limiting the scope thereof, as the specification may admit of other equally effective aspects. The same reference numerals in different drawings may identify the same or similar elements.

[0025] Figure 1 is a diagram illustrating an example of a wireless network according to the present disclosure.

[0026] Figure 2 is a diagram illustrating an example of communication between a network node and a user equipment (UE) in a wireless network according to the present disclosure.

[0027] Figure 3 is a diagram illustrating an example associated with transmitting and receiving hybrid automatic request (HARQ) feedback during and outside of a channel occupancy time (COT) according to the present disclosure.

[0028] Figure 4A , Figure 4B and Figure 4C is a diagram illustrating an example associated with transmitting and receiving HARQ feedback during COT according to the present disclosure.

[0029] Figure 5A , Figure 5B and Figure 5C is a diagram illustrating an example associated with transmitting and receiving HARQ feedback during COT according to the present disclosure.

[0030] Fig. 6A and Figure 6B is a diagram illustrating an example associated with a HARQ timeline associated with a COT according to the present disclosure.

[0031] Figure 7 , Figure 8 , Fig. 9 and Fig.10 is a diagram illustrating an example process associated with sending and receiving HARQ feedback during COT according to the present disclosure.

[0032] Fig.11 is a diagram of an example apparatus for wireless communications according to the present disclosure. DETAILED DESCRIPTION

[0033] The various aspects of the present disclosure are described more fully below with reference to the accompanying drawings. However, the present disclosure can be embodied in many different forms, and should not be construed as being limited to any specific structure or function presented throughout the present disclosure. Instead, these aspects are provided so that the present disclosure will be thorough and complete, and the protection scope of the present disclosure will be fully conveyed to those skilled in the art. It will be appreciated by those skilled in the art that the scope of the present disclosure is intended to cover any aspect of the present disclosure disclosed herein, whether it is implemented independently or in combination with any other aspect of the present disclosure. For example, any number of aspects set forth herein may be used to implement a device or practice method. In addition, the scope of the present disclosure is intended to cover such devices or methods implemented using other structures, functionality, or structures and functionality in addition to or different from the various aspects of the disclosure set forth herein. It should be understood that any aspect of the disclosure disclosed herein may be embodied by one or more elements of the present invention.

[0034] Several aspects of telecommunication systems will now be presented with reference to various devices and techniques. These devices and techniques will be described in the following detailed description and illustrated in the accompanying drawings by various blocks, modules, components, circuits, steps, processes, algorithms, etc. (collectively referred to as "elements"). These elements can be implemented using hardware, software, or a combination thereof. Whether these elements are implemented as hardware or software depends on the specific application and the design constraints imposed on the overall system.

[0035] Although various aspects may be described herein using terminology generally associated with 5G or new radio (NR) radio access technology (RAT), various aspects of the present disclosure may be applied to other RATs, such as 3G RAT, 4G RAT, and / or 5G and beyond (e.g., 6G) RATs.

[0036] Figure 1 1 is a diagram illustrating an example of a wireless network 100 according to the present disclosure. The wireless network 100 may be a 5G (e.g., NR) network and / or a 4G (e.g., Long Term Evolution (LTE)) network, or may include elements of a 5G (e.g., NR) network and / or elements of a 4G (e.g., Long Term Evolution (LTE)) network, etc. The wireless network 100 may include one or more network nodes 110 (shown as network node 110a, network node 110b, network node 110c, and network node 110d), user equipment (UE) 120 or multiple UEs 120 (shown as UE 120a, UE 120b, UE 120c, UE 120d, and UE 120e), and / or other entities. The network node 110 is a network node that communicates with the UE 120. As shown in the figure, the network node 110 may include one or more network nodes. For example, the network node 110 may be a converged network node, which means that the converged network node is configured to utilize a radio protocol stack that is physically or logically integrated within a single radio access network (RAN) node (e.g., within a single device or unit). For another example, the network node 110 may be a decomposed network node (sometimes referred to as a decomposed base station), which means that the network node 110 is configured to utilize a protocol stack that is physically or logically distributed between two or more nodes (such as one or more central units (CUs), one or more distributed units (DUs), or one or more radio units (RUs)).

[0037] In some examples, the network node 110 is or includes a network node (such as an RU) that communicates with the UE 120 via a radio access link. In some examples, the network node 110 is or includes a network node (such as a DU) that communicates with other network nodes 110 via a fronthaul link or a midhaul link. In some examples, the network node 110 is or includes a network node (such as a CU) that communicates with other network nodes 110 via a midhaul link or communicates with a core network via a backhaul link. In some examples, the network node 110 (such as an aggregated network node 110 or a decomposed network node 110) may include multiple network nodes, such as one or more RUs, one or more CUs, and / or one or more DUs. For example, the network node 110 may include an NR base station, an LTE base station, a Node B, an eNB (e.g., in 4G), a gNB (e.g., in 5G), an access point, a transmit receive point (TRP), a DU, a RU, a CU, a mobility element of a network, a core network node, a network element, a network equipment, a RAN node, or a combination thereof. In some examples, network nodes 110 may be interconnected to each other or to one or more other network nodes 110 in wireless network 100 via various types of fronthaul interfaces, midhaul interfaces, and / or backhaul interfaces (such as direct physical connections, air interfaces, or virtual networks) using any suitable transport network.

[0038] In some examples, the network node 110 may provide communication coverage for a particular geographic area. In the Third Generation Partnership Project (3GPP), the term "cell" may refer to the coverage area of ​​the network node 110 and / or a network node subsystem serving the coverage area, depending on the context in which the term is used. The network node 110 may provide communication coverage for a macro cell, a pico cell, a femto cell, and / or another type of cell. A macro cell may cover a relatively large geographic area (e.g., a radius of several kilometers) and may allow unrestricted access by a UE 120 with a service subscription. A pico cell may cover a relatively small geographic area and may allow unrestricted access by a UE 120 with a service subscription. A femto cell may cover a relatively small geographic area (e.g., a home) and may allow restricted access by a UE 120 associated with the femto cell (e.g., a UE 120 in a closed subscriber group (CSG)). A network node 110 for a macro cell may be referred to as a macro network node. A network node 110 for a pico cell may be referred to as a pico network node. The network node 110 for a femto cell may be referred to as a femto network node or a home network node. Figure 1In the example shown, network node 110a may be a macro network node for macro cell 102a, network node 110b may be a pico network node for pico cell 102b, and network node 110c may be a femto network node for femto cell 102c. The network node may support one or more (e.g., three) cells. In some examples, the cells may not necessarily be stationary, and the geographic area of ​​the cells may move depending on the location of the mobile network node 110 (e.g., a mobile network node).

[0039] In some aspects, the term "base station" or "network node" may refer to a converged base station, a decomposed base station, an integrated access and backhaul (IAB) node, a relay node, or one or more components thereof. For example, in some aspects, a "base station" or "network node" may refer to a CU, a DU, a RU, a near real-time (near-RT) RAN intelligent controller (RIC), or a non-real-time (non-RT) RIC, or a combination thereof. In some aspects, the term "base station" or "network node" may refer to a device configured to perform one or more functions, such as those described herein in conjunction with the network node 110. In some aspects, the term "base station" or "network node" may refer to a plurality of devices configured to perform one or more functions. For example, in some distributed systems, each of a number of different devices (which may be located in the same geographic location or in different geographic locations) may be configured to perform at least a portion of a function, or to repeat the execution of at least a portion of the function, and the term "base station" or "network node" may refer to any one or more of these different devices. In some aspects, the term "base station" or "network node" may refer to one or more virtual base stations or one or more virtual base station functions. For example, in some aspects, two or more base station functions may be instantiated on a single device. In some aspects, the term "base station" or "network node" may refer to one of the base station functions but not another base station function. In this way, a single device may include more than one base station.

[0040] The wireless network 100 may include one or more relay stations. A relay station is a network node that can receive transmissions of data from an upstream node (e.g., a network node 110 or a UE 120) and transmit transmissions of data to a downstream node (e.g., a UE 120 or a network node 110). A relay station may be a UE 120 that is capable of relaying transmissions for other UEs 120. Figure 1 In the example shown, a network node 110d (e.g., a relay network node) may communicate with a network node 110a (e.g., a macro network node) and a UE 120d to facilitate communications between the network node 110a and the UE 120d. A network node 110 that relays communications may be referred to as a relay station, a relay base station, a relay network node, a relay node, a relay, etc.

[0041] The wireless network 100 may be a heterogeneous network that includes different types of network nodes 110, such as macro network nodes, pico network nodes, femto network nodes, relay network nodes, etc. These different types of network nodes 110 may have different transmit power levels, different coverage areas, and / or different impacts on interference in the wireless network 100. For example, a macro network node may have a high transmit power level (e.g., 5 watts to 40 watts), while a pico network node, a femto network node, and a relay network node may have a lower transmit power level (e.g., 0.1 watt to 2 watts).

[0042] The network controller 130 may be coupled to or in communication with a set of network nodes 110 and may provide coordination and control for the network nodes 110. The network controller 130 may communicate with the network nodes 110 via a backhaul communication link or a midhaul communication link. The network nodes 110 may also communicate directly with each other or indirectly via a wireless backhaul communication link or a wired backhaul communication link. In some aspects, the network controller 130 may be or may include a CU or a core network device.

[0043] UE 120 may be dispersed throughout the wireless network 100, and each UE 120 may be stationary or mobile. UE 120 may include, for example, an access terminal, a terminal, a mobile station, and / or a subscriber unit. UE 120 may be a cellular phone (e.g., a smart phone), a personal digital assistant (PDA), a wireless modem, a wireless communication device, a handheld device, a laptop computer, a cordless phone, a wireless local loop (WLL) station, a tablet computer, a camera, a gaming device, a netbook, a smartbook, an ultrabook, a medical device, a biometric device, a wearable device (e.g., a smart watch, smart clothing, smart glasses, a smart wristband, smart jewelry (e.g., a smart ring or a smart bracelet)), an entertainment device (e.g., a music device, a video device, and / or a satellite radio), a vehicle component or sensor, a smart meter / sensor, an industrial manufacturing equipment, a global positioning system device, a UE function of a network node, and / or any other suitable device configured to communicate via a wireless or wired medium.

[0044] Some UEs 120 may be considered as machine type communication (MTC) or evolved or enhanced machine type communication (eMTC) UEs. MTC UEs and / or eMTC UEs may include, for example, robots, drones, remote devices, sensors, meters, monitors, and / or location tags that may communicate with a network node, another device (e.g., a remote device), or some other entity. Some UEs 120 may be considered as Internet of Things (IoT) devices and / or may be implemented as NB-IoT (narrowband IoT) devices. Some UEs 120 may be considered as customer premises equipment. UE 120 may be included in a housing that houses components of UE 120, such as a processor component and / or a memory component. In some examples, the processor component and the memory component may be coupled together. For example, a processor component (e.g., one or more processors) and a memory component (e.g., a memory) may be operatively coupled, communicatively coupled, electronically coupled, and / or electrically coupled.

[0045] In general, any number of wireless networks 100 may be deployed in a given geographic area. Each wireless network 100 may support a specific RAT and may operate on one or more frequencies. RAT may be referred to as a radio technology, air interface, etc. Frequency may be referred to as a carrier, frequency channel, etc. Each frequency may support a single RAT in a given geographic area to avoid interference between wireless networks of different RATs. In some cases, NR or 5G RAT networks may be deployed.

[0046] In some examples, two or more UEs 120 (e.g., shown as UE 120a and UE 120e) may communicate directly using one or more side link channels (e.g., without using network node 110 as an intermediary to communicate with each other). For example, UE 120 may communicate using peer-to-peer (P2P) communication, device-to-device (D2D) communication, vehicle-to-everything (V2X) protocols (e.g., which may include vehicle-to-vehicle (V2V) protocols, vehicle-to-infrastructure (V2I) protocols, or vehicle-to-pedestrian (V2P) protocols), and / or mesh networks. In such examples, UE 120 may perform scheduling operations, resource selection operations, and / or other operations described elsewhere herein as being performed by network node 110.

[0047] The devices of the wireless network 100 may communicate using an electromagnetic spectrum, which may be subdivided into various categories, bands, channels, etc., according to frequency or wavelength. For example, the devices of the wireless network 100 may communicate using one or more operating bands. In 5G NR, two initial operating bands have been identified as frequency ranges designated FR1 (410 MHz to 7.125 GHz) and FR2 (24.25 GHz to 52.6 GHz). It should be understood that, although a portion of FR1 is greater than 6 GHz, FR1 is often (interchangeably) referred to as the "sub-6 GHz" band in various documents and articles. A similar naming issue sometimes occurs with respect to FR2, which is often (interchangeably) referred to as the "millimeter wave" band in documents and articles, although it is different from the extremely high frequency (EHF) band (30 GHz to 300 GHz) identified as the "millimeter wave" band by the International Telecommunication Union (ITU).

[0048] Frequencies between FR1 and FR2 are generally referred to as mid-band frequencies. Recent 5G NR research has identified the operating bands for these mid-band frequencies as frequency range designation FR3 (7.125 GHz to 24.25 GHz). The bands falling within FR3 may inherit FR1 characteristics and / or FR2 characteristics, and thus may effectively extend the features of FR1 and / or FR2 to mid-band frequencies. In addition, higher frequency bands are currently being explored to extend 5G NR operations to more than 52.6 GHz. For example, three higher operating bands have been identified as frequency range designations FR4a or FR4-1 (52.6 GHz to 71 GHz), FR4 (52.6 GHz to 114.25 GHz), and FR5 (114.25 GHz to 300 GHz). Each of these higher frequency bands falls within the EHF band.

[0049] In view of the above examples, unless otherwise specifically stated, it should be understood that if the term "below 6 GHz" or the like is used herein, the term may broadly refer to frequencies that may be lower than 6 GHz, may be within FR1, or may include mid-band frequencies. In addition, unless otherwise specifically stated, it should be understood that if the term "millimeter wave" or the like is used herein, the term may broadly refer to frequencies that may include mid-band frequencies, may be within FR2, FR4, FR4-a or FR4-1, and / or FR5, or may be within the EHF band. It is contemplated that the frequencies included in these operating bands (e.g., FR1, FR2, FR3, FR4, FR4-a, FR4-1, and / or FR5) may be modified, and the techniques described herein are applicable to those modified frequency ranges.

[0050] In some aspects, the UE 120 may include a communication manager 140. The UE 120 may send feedback on a sidelink channel. Thus, as described in more detail elsewhere herein, the communication manager 140 may determine whether a physical sidelink feedback channel (PSFCH) transmission is scheduled during a channel occupancy time (COT), and may send the PSFCH transmission using a first set of resources based at least in part on determining that the PSFCH transmission is scheduled outside the COT, or may send the PSFCH transmission using a second set of resources based at least in part on determining that the PSFCH transmission is scheduled within the COT. Alternatively, the communication manager 140 may determine whether the PSFCH transmission is scheduled during the COT, and may send the PSFCH transmission according to a hybrid automatic repeat request (HARQ) timeline set based at least in part on determining that the PSFCH transmission is scheduled outside the COT, or may send the PSFCH transmission according to a subset of the HARQ timeline set based at least in part on determining that the PSFCH transmission is scheduled within the COT. Additionally or alternatively, the communication manager 140 may perform one or more other operations described herein.

[0051] Alternatively, UE 120 may receive feedback on a sidelink channel. Thus, as described in more detail elsewhere herein, communications manager 140 may monitor the PSFCH using a first set of resources associated with feedback received during the COT, and / or monitor the PSFCH using a second set of resources associated with feedback received outside the COT. Alternatively, communications manager 140 may monitor the PSFCH based on a subset of a HARQ timeline set associated with feedback received during the COT, and may monitor the PSFCH based on the remaining HARQ timelines in the HARQ timeline set associated with feedback received outside the COT based at least in part on not receiving feedback on the PSFCH during the subset of HARQ timelines. Additionally or alternatively, communications manager 140 may perform one or more other operations described herein.

[0052] As indicated above, Figure 1 are provided as examples. Other examples can be found in the Figure 1 The examples described are different.

[0053] Figure 22 is a diagram illustrating an example 200 in which a network node 110 communicates with a UE 120 in a wireless network 100 according to the present disclosure. The network node 110 may be equipped with a set of antennas 234a to 234t, such as T antennas (T≥1). The UE 120 may be equipped with a set of antennas 252a to 252r, such as R antennas (R≥1). The network node 110 of example 200 includes one or more radio frequency components, such as an antenna 234 and a modem 254. In some examples, the network node 110 may include an interface, a communication component, or another component that facilitates communication with the UE 120 or another network node. Some network nodes 110 may not include a radio frequency component that facilitates direct communication with the UE 120, such as one or more CUs or one or more DUs.

[0054] At the network node 110, the transmit processor 220 may receive data intended for the UE 120 (or a set of UEs 120) from the data source 212. The transmit processor 220 may select one or more modulation and coding schemes (MCS) for the UE 120 based at least in part on one or more channel quality indicators (CQIs) received from the UE 120. The network node 110 may process (e.g., encode and modulate) the data for the UE 120 based at least in part on the MCS selected for the UE 120, and provide data symbols for the UE 120. The transmit processor 220 may process system information (e.g., for semi-static resource partitioning information (SRPI)) and control information (e.g., CQI requests, grants, and / or upper layer signaling), and provide overhead symbols and control symbols. The transmit processor 220 may generate reference symbols for reference signals (e.g., cell-specific reference signals (CRS) or demodulation reference signals (DMRS)) and synchronization signals (e.g., primary synchronization signals (PSS) or secondary synchronization signals (SSS)). The transmit (TX) multiple-input multiple-output (MIMO) processor 230 may perform spatial processing (e.g., pre-coding) on ​​data symbols, control symbols, overhead symbols, and / or reference symbols, where applicable, and may provide a set of output symbol streams (e.g., T output symbol streams) to a corresponding set of modems 232 (e.g., T modems) (shown as modems 232a to 232t). For example, each output symbol stream may be provided to a modulator component (shown as MOD) of the modem 232. Each modem 232 may process a corresponding output symbol stream (e.g., for OFDM) using a corresponding modulator component to obtain an output sample stream. Each modem 232 may further process (e.g., convert to analog, amplify, filter, and / or up-convert) the output sample stream using a corresponding modulator component to obtain a downlink signal. The modems 232a to 232t may transmit a set of downlink signals (e.g., T downlink signals) via a corresponding set of antennas 234 (e.g., T antennas) (shown as antennas 234a to 234t).

[0055] At the UE 120, a set of antennas 252 (shown as antennas 252a to 252r) may receive downlink signals from the network node 110 and / or other network nodes 110 and may provide a set of received signals (e.g., R received signals) to a set of modems 254 (e.g., R modems) (shown as modems 254a to 254r). For example, each received signal may be provided to a demodulator component (shown as DEMOD) of the modem 254. Each modem 254 may use a corresponding demodulator component to condition (e.g., filter, amplify, downconvert, and / or digitize) the received signal to obtain input samples. Each modem 254 may use a demodulator component to further process the input samples (e.g., for OFDM) to obtain received symbols. A MIMO detector 256 may obtain received symbols from the modem 254, may perform MIMO detection on the received symbols where applicable, and may provide detected symbols. The receive processor 258 may process (e.g., demodulate and decode) the detected symbols, may provide decoded data for the UE 120 to the data sink 260, and may provide decoded control information and system information to the controller / processor 280. The term "controller / processor" may refer to one or more controllers, one or more processors, or a combination thereof. The channel processor may determine a reference signal received power (RSRP) parameter, a received signal strength indicator (RSSI) parameter, a reference signal received quality (RSRQ) parameter, and / or a CQI parameter, among other things. In some examples, one or more components of the UE 120 may be included in the housing 284.

[0056] The network controller 130 may include a communication unit 294, a controller / processor 290, and a memory 292. The network controller 130 may include, for example, one or more devices in a core network. The network controller 130 may communicate with the network node 110 via the communication unit 294.

[0057] One or more antennas (e.g., antennas 234a to 234t and / or antennas 252a to 252r) may include or be included within one or more antenna panels, one or more antenna groups, one or more sets of antenna elements, and / or one or more antenna arrays, etc. Antenna panels, antenna groups, sets of antenna elements, and / or antenna arrays may include one or more antenna elements (in a single housing or multiple housings), sets of coplanar antenna elements, sets of non-coplanar antenna elements, and / or may be coupled to one or more transmit and / or receive components (such as, Figure 2 One or more antenna elements of one or more components in.

[0058] On the uplink, at the UE 120, the transmit processor 264 may receive and process data from the data source 262 and control information from the controller / processor 280 (e.g., for reports including RSRP, RSSI, RSRQ, and / or CQI). The transmit processor 264 may generate reference symbols for one or more reference signals. The symbols from the transmit processor 264 may be pre-decoded by the TX MIMO processor 266, where applicable, further processed by the modem 254 (e.g., for DFT-s-OFDM or CP-OFDM), and sent to the network node 110. In some examples, the modem 254 of the UE 120 may include a modulator and a demodulator. In some examples, the UE 120 includes a transceiver. The transceiver may include any combination of an antenna 252, a modem 254, a MIMO detector 256, a receive processor 258, a transmit processor 264, and / or a TX MIMO processor 266. The transceiver may be used by a processor (eg, controller / processor 280) and memory 282 to execute the instructions described herein (eg, reference Figures 3 to 11 ) any aspects of any of the methods described herein.

[0059] At the network node 110, uplink signals from the UE 120 and / or other UEs may be received by the antenna 234, processed by the modem 232 (e.g., a demodulator component of the modem 232 shown as DEMOD), detected by the MIMO detector 236 (where applicable), and further processed by the receive processor 238 to obtain decoded data and control information transmitted by the UE 120. The receive processor 238 may provide the decoded data to the data sink 239 and the decoded control information to the controller / processor 240. The network node 110 may include a communication unit 244 and may communicate with the network controller 130 via the communication unit 244. The network node 110 may include a scheduler 246 to schedule one or more UEs 120 for downlink and / or uplink communications. In some examples, the modem 232 of the network node 110 may include a modulator and a demodulator. In some examples, the network node 110 includes a transceiver. The transceiver may include any combination of antenna 234, modem 232, MIMO detector 236, receive processor 238, transmit processor 220, and / or TX MIMO processor 230. The transceiver may be used by a processor (e.g., controller / processor 240) and memory 242 to execute the instructions described herein (e.g., reference 2 Figures 3 to 11 ) any aspects of any of the methods described herein.

[0060] The controller / processor 240 of the network node 110, the controller / processor 280 of the UE 120, and / or Figure 2 Any other components of the controller / processor 240 of the network node 110, the controller / processor 280 of the UE 120, and / or Figure 2 Any other component of the Figure 7 The process of 700 Figure 8 The process of 800 Fig. 9 The process of 900 Fig.10 1000 and / or other processes as described herein. Memory 242 and memory 282 may store data and program codes for network node 110 and UE 120, respectively. In some examples, memory 242 and / or memory 282 may include a non-transitory computer-readable medium that stores one or more instructions (e.g., code and / or program code) for wireless communication. For example, the one or more instructions, when executed (e.g., directly or after compilation, conversion, and / or interpretation) by one or more processors of network node 110 and / or UE 120, may cause the one or more processors, UE 120, and / or network node 110 to perform or direct, for example, Figure 7 The process of 700 Figure 8 The process of 800 Fig. 9 The process of 900 Fig.10 The process 1000 and / or operations of other processes as described herein. In some examples, executing instructions may include running instructions, converting instructions, compiling instructions, and / or interpreting instructions, etc.

[0061] In some aspects, a UE (e.g., UE 120 and / or Fig.11The apparatus 1100 may include: a component for determining whether a PSFCH transmission is scheduled during the COT; a component for sending a PSFCH transmission using a first resource set based at least in part on determining that the PSFCH transmission is scheduled outside the COT; and / or a component for sending a PSFCH transmission using a second resource set based at least in part on determining that the PSFCH transmission is scheduled within the COT. Alternatively, the UE may include: a component for determining whether a PSFCH transmission is scheduled during the COT; a component for sending a PSFCH transmission according to a HARQ timeline set based at least in part on determining that the PSFCH transmission is scheduled outside the COT; and / or a component for sending a PSFCH transmission according to a subset of the HARQ timeline set based at least in part on determining that the PSFCH transmission is scheduled within the COT. Means for the UE to perform operations described herein may include, for example, one or more of the following: communication manager 140, antenna 252, modem 254, MIMO detector 256, receive processor 258, transmit processor 264, TX MIMO processor 266, controller / processor 280, or memory 282.

[0062] In some aspects, the UE may include: a component for monitoring the PSFCH using a first set of resources associated with feedback received during the COT; and / or a component for monitoring the PSFCH using a second set of resources associated with feedback received outside the COT. Alternatively, the UE may include: a component for monitoring the PSFCH according to a subset of the HARQ timeline set associated with feedback received during the COT; and / or a component for monitoring the PSFCH according to the remaining HARQ timelines in the HARQ timeline set associated with feedback received outside the COT based at least in part on not receiving feedback on the PSFCH during the subset of the HARQ timelines. The components for the UE to perform the operations described herein may include, for example, one or more of the following: the communication manager 140, the antenna 252, the modem 254, the MIMO detector 256, the receive processor 258, the transmit processor 264, the TX MIMO processor 266, the controller / processor 280, or the memory 282.

[0063] Although Figure 2 The blocks in the 200 and 210 are illustrated as distinct components, but the functionality described above for these blocks may be implemented in a single hardware, software, or combined component or in various combinations of components. For example, the functionality described for the transmit processor 264, the receive processor 258, and / or the TX MIMO processor 266 may be performed by or under the control of the controller / processor 280.

[0064] As indicated above, Figure 2are provided as examples. Other examples can be found in the Figure 2 The examples described are different.

[0065] The deployment of a communication system (such as a 5G NR system) may be arranged with various components or parts in a variety of ways. In a 5GNR system or network, a network node, a network entity, a mobility element of a network, a RAN node, a core network node, a network element, a base station, or network equipment may be implemented in an aggregated or decomposed architecture. For example, a base station (such as a Node B (NB), an evolved NB (eNB), an NR BS, a 5G NB, an access point (AP), a TRP, or a cell, etc.) or one or more units (or one or more components) that perform base station functionality may be implemented as an aggregated base station (also referred to as an independent base station or a monolithic base station) or a decomposed base station. A "network entity" or a "network node" may refer to a decomposed base station or one or more units of a decomposed base station (such as one or more CUs, one or more DUs, one or more RUs, or a combination thereof).

[0066] An aggregated base station (e.g., an aggregated network node) may be configured to utilize a radio protocol stack that is physically or logically integrated within a single RAN node (e.g., within a single device or unit). A decomposed base station (e.g., a decomposed network node) may be configured to utilize a protocol stack that is physically or logically distributed between two or more units (such as one or more CUs, one or more DUs, or one or more RUs). In some examples, the CU may be implemented within a network node, and one or more DUs may be co-located with the CU, or alternatively, may be geographically or virtually distributed across one or more other network nodes. The DU may be implemented to communicate with one or more RUs. Each of the CU, DU, and RU may also be implemented as a virtual unit, such as a virtual central unit (VCU), a virtual distributed unit (VDU), or a virtual radio unit (VRU), and the like.

[0067] Base station type operations or network designs may take into account the aggregated nature of base station functionality. For example, a decomposed base station may be utilized in an IAB network, an open radio access network (O-RAN (such as a network configuration initiated by the O-RAN Alliance)), or a virtualized radio access network (vRAN, also known as a cloud radio access network (C-RAN)) to facilitate the scaling of a communication system by separating base station functionality into one or more units that can be deployed separately. A decomposed base station may include functionality implemented across two or more units at various physical locations, as well as functionality implemented virtually for at least one unit, which may enable flexibility in network design. Individual units of a decomposed base station may be configured for wired or wireless communication with at least one other unit of the decomposed base station.

[0068] In unlicensed wireless frequencies, devices may perform listen-before-talk (LBT) before transmitting on the frequency. In LBT, a device performs sensing (e.g., carrier sense and energy detection (CS / ED), carrier sense multiple access (CSMA), clear channel assessment (CCA), and / or other types of sensing) and transmits only when the result of the sensing meets one or more conditions. In Type 1 channel access (also known as "Category 4 LBT" or "CAT 4 LBT"), the sensing duration is randomly (or at least pseudo-randomly) selected. In Type 2 channel access, the sensing duration is preconfigured. For example, in Type 2A channel access, the duration is 25µs, while in Type 2B channel access, the duration is 16µs. Type 2A and Type 2B channel access are also known as "Category 2 LBT" or "CAT 2 LBT". In Type 2C channel access (also known as "Category 1 LBT" or "CAT 1 LBT"), the duration is 0µs (i.e., no sensing is performed).

[0069] When the UEs communicate on the sidelink channel, the transmitting (Tx) UE may send data to the receiving (Rx) UE via the physical sidelink shared channel (PSSCH). Accordingly, the receiving UE sends feedback (e.g., HARQ feedback, including an acknowledgement (ACK) signal and a negative acknowledgement (NACK) signal) to the transmitting UE via the PSFCH.

[0070] After performing LBT, a network device (such as a gNB, UE, or other type of wireless device) may establish a COT during which the network device may transmit. The network device may share this COT with other network devices by sending COT structure information (COT-SI). Therefore, HARQ feedback via PSFCH may be scheduled during or outside of the COT.

[0071] Some techniques and apparatus described herein enable different resource sets to be configured for PSFCH transmissions during the COT and, in comparison, for PSFCH transmissions outside the COT. Thus, a smaller resource set may be configured for PSFCH transmissions during the COT, which reduces power consumption and waste of processing resources when a UE (e.g., UE 120a) monitors feedback. Similarly, a larger resource set may be configured for PSFCH transmissions outside the COT, which improves the reliability and quality of UE 120a. Additionally or alternatively, a larger periodicity and / or offset may be configured for PSFCH transmissions during the COT, which reduces the chance of COT interruption for the COT initiator UE. Similarly, a shorter periodicity and / or offset may be configured for PSFCH transmissions outside the COT, which reduces latency and improves reliability and quality.

[0072] Alternatively, some techniques and apparatus described herein can configure different HARQ timelines for PSFCH transmissions during the COT and, in comparison, for PSFCH transmissions outside the COT. Thus, a smaller set of timelines can be configured for PSFCH transmissions during the COT, which reduces power consumption and waste of processing resources when a UE (e.g., UE 120a) monitors feedback. Similarly, a larger set of timelines can be configured for PSFCH transmissions outside the COT, which improves reliability and quality for UE 120a. Additionally or alternatively, a longer timeline can be configured for PSFCH transmissions during the COT, which reduces the chance of COT interruption for the COT initiator UE. Similarly, a shorter timeline can be configured for PSFCH transmissions outside the COT, which improves reliability and quality.

[0073] Figure 3 is a diagram illustrating an example 300 associated with sending and receiving HARQ feedback during and outside of COT according to the present disclosure. Figure 3 As shown, a first UE 120a and a second UE 120b may communicate with each other (eg, on a sidelink channel). The first UE 120a and the second UE 120b may use an unlicensed band or another set of frequencies requiring LBT.

[0074] As shown by reference numeral 305, UE 120a may initiate a COT and send (eg, to UE 120b) an indication of the COT. For example, UE 120a may send a COT-SI to UE 120b. Thus, UE 120a may be a COT initiator UE.

[0075] Alternatively, UE 120a may not be a COT initiator UE, such that UE 120b receives COT-SI from another UE (not shown). Alternatively, UE 120b may not receive COT-SI at all.

[0076] Additionally, UE 120a may transmit, and UE 120b may receive, sidelink control information (SCI) that schedules data transmission from UE 120a to UE 120b (e.g., via the PSSCH), as indicated by reference numeral 310. In some aspects, the SCI may include a phase 1 SCI (SCI-1) followed by a phase 2 SCI (SCI-2).

[0077] Thus, UE 120a may transmit and UE 120b may receive data transmissions (e.g., via the PSSCH) as indicated by reference numeral 315. Based on the SCI, UE 120a may transmit and UE 120b may monitor the data transmissions (e.g., using the time, frequency, and / or spatial resources indicated in the SCI).

[0078] Thus, UE 120b may generate HARQ feedback based on whether the data transmission was successfully received and decoded. In some aspects, the HARQ feedback may include a single ACK signal or a NACK signal associated with the data transmission. Alternatively, UE 120b may generate HARQ feedback that includes multiple signals associated with multiple data transmissions from UE 120a.

[0079] As shown by reference numeral 320, UE 120b may determine whether a PSFCH transmission is scheduled during the COT. For example, the PSFCH transmission may include HARQ feedback. In some aspects, UE 120b may determine whether the PSFCH transmission is within the COT by comparing a minimum time interval associated with the PSFCH transmission (e.g., set by a MinTimeGapPSFCH data element, as described in 3GPP specifications and / or other standards) with a duration of the COT (e.g., as indicated in a COT-SI from UE 120a or another UE). When UE 120b does not receive the COT-SI, UE 120b determines that the PSFCH transmission is not scheduled during the COT.

[0080] Thus, as shown by reference numeral 325a, UE 120b may transmit a PSFCH transmission using a first set of resources (also referred to as "out-of-COT resources") based at least in part on determining that the PSFCH transmission is scheduled outside of the COT. Figure 4C As described above, when the second resource set is unavailable, the UE 120b may use the first resource set as a fallback. In addition, the UE 120b may send the PSFCH according to the first HARQ timeline set associated with the first resource set.

[0081] As indicated by reference numeral 325b, UE 120b may transmit a PSFCH transmission using a second set of resources (also referred to as "intra-COT resources") based at least in part on determining that the PSFCH transmission is scheduled during the COT. Figure 4A As described above, UE 120b may use the same timing for all PSFCH transmissions scheduled within the COT (if feasible).

[0082] In some aspects, UE 120b may select any (in time) opportunity in the second resource set when UE 120a is a COT initiator UE, but select the latest (in time) opportunity in the second resource set when UE 120a is a node not associated with the COT, such as in conjunction with Figure 4BIn some aspects, when UE 120a is a COT initiator UE, UE 120b may select the timing in the second resource set indicated by UE 120a in the COT-SI and / or SCI. Alternatively, UE 120b may use all timings in the second resource set for the COT initiator UE and other UEs. In addition, UE 120b may send the PSFCH according to a second HARQ timeline set associated with the second resource set.

[0083] In some aspects, the second resource set may include multiple resource pools. In some aspects, UE 120b may select any one of the multiple resource pools when UE 120a is a COT initiator UE, but select the resource pool with the latest opportunity (in time) when the COT ends when UE 120a is a node not associated with the COT, such as in conjunction with Figure 5B When multiple opportunities are the latest opportunities, UE 120b may select a resource pool with the longest periodicity, such as Figure 5C In some aspects, when UE 120a is a COT initiator UE, UE 120b may select a resource pool from among the plurality of resource pools indicated by UE 120a in the COT-SI and / or SCI. Alternatively, UE 120b may use the resource pool indicated in the COT-SI and / or SCI for PSFCH transmission for the COT initiator UE and other UEs, such as in conjunction with Figure 5A described.

[0084] The first resource set is associated with a first periodicity and a first offset, and the second resource set is associated with a second periodicity and a second offset. Thus, in some aspects, the second periodicity is longer than the first periodicity and / or the second offset is longer than the first offset.

[0085] When UE 120a is a COT initiator UE, UE 120a may monitor PSFCH using the second resource set, because UE 120a knows that PSFCH transmission is performed during COT. Alternatively, when UE 120a is not a COT initiator UE, UE 120 may monitor PSFCH using a combination of the first resource set and the second resource set, because UE 120a is not sure whether PSFCH transmission is performed during COT. In addition, UE 120a may assume that data transmission is received when an ACK signal is received at least one time in the second resource set. Similarly, UE 120a may assume that data transmission is not received when an ACK signal is not received at all times in the second resource set.

[0086] By using the combination Figure 3According to the described technology, UE 120b uses different resource sets for PSFCH transmission during COT and PSFCH transmission outside COT in comparison. Therefore, the second resource set can be smaller than the first resource set, which reduces the power consumption and processing resource waste of UE 120a. Similarly, the first resource set can be larger than the second resource set, which improves the reliability and quality of UE 120a. Additionally or alternatively, the second resource set can have a larger periodicity and / or offset than the first resource set, which reduces the chance of COT interruption of the COT initiator UE. Similarly, the first resource set can have a shorter periodicity and / or offset than the second resource set, which improves the reliability and quality of UE 120a.

[0087] As indicated above, Figure 3 are provided as examples. Other examples can be found in relation to Figure 3 The examples described are different.

[0088] Figure 4A 4 is a diagram illustrating an example 400 associated with transmitting and receiving HARQ feedback during COT according to the present disclosure. Figure 4A As shown, example 400 includes data transmission 401a (shown as "PSSCH1") from a transmitting UE and data transmission 401b (shown as "PSSCH2") from a COT initiator UE. Therefore, the receiving UE schedules a PSFCH transmission associated with data transmission 401a (shown as "PSFCH1") to the transmitting UE, and schedules a PSFCH transmission associated with data transmission 401b (shown as "PSFCH2") to the COT initiator UE.

[0089] like Figure 4A As shown, the receiving UE may send all PSFCH transmissions within the same opportunity 403 in the resource pool within the COT. For example, opportunity 403 is a PSFCH opportunity in the resource pool within the COT, and for PSSCH1 and PSSCH2, opportunity 403 is a PSFCH opportunity in the resource pool within the COT that satisfies the minimum time interval (e.g., Figure 4A Alternatively, the receiving UE may schedule PSFCH transmission in the latest timing in the resource pool within the COT.

[0090] Figure 4B 4 is a diagram illustrating an example 420 associated with sending and receiving HARQ feedback during COT according to the present disclosure. Figure 4BAs shown, example 420 includes data transmission 401a (shown as "PSSCH1") from a transmitting UE and data transmission 401b (shown as "PSSCH2") from a COT initiator UE. Therefore, the receiving UE schedules a PSFCH transmission associated with data transmission 401a (shown as "PSFCH1") to the transmitting UE, and schedules a PSFCH transmission associated with data transmission 401b (shown as "PSFCH2") to the COT initiator UE.

[0091] like Figure 4B As shown, the receiving UE can send PSFCH to the COT initiator UE within the timing 423a in the resource pool within the COT. For example, within the COT, timing 423a and timing 423b are in the resource pool within the COT. For the COT initiator UE, timing 423a or timing 423b can be used. For PSSCH2, timing 423a can be the earliest timing in the resource pool within the COT that meets the minimum time interval MinTimeGapPSFCH, and the SCI scheduling PSSCH2 can indicate that PSFCH2 can be sent in the resource pool within the COT, so that the receiving UE sends PSFCH2 within timing 423a. In addition, the receiving UE can send PSFCH1 to the transmitting UE within timing 423a in the resource pool within the COT. For PSSCH1, timing 423a can be the earliest timing in the resource pool within the COT that meets the minimum time interval MinTimeGapPSFCH. The receiving UE can select timing 423a because timing 423a is the latest timing in the resource pool within the COT. Therefore, the receiving UE is less likely to interrupt the transmission of the COT initiator UE during the COT.

[0092] Figure 4C 4 is a diagram illustrating an example 440 associated with sending and receiving HARQ feedback during COT according to the present disclosure. Figure 4C As shown, example 440 includes data transmission 401a (shown as "PSSCH1") from a transmitting UE and data transmission 401b (shown as "PSSCH2") from a COT initiator UE. Therefore, the receiving UE schedules a PSFCH transmission associated with data transmission 401a (shown as "PSFCH1") to the transmitting UE, and schedules a PSFCH transmission associated with data transmission 401b (shown as "PSFCH2") to the COT initiator UE.

[0093] like Figure 4CAs shown, the receiving UE can send PSFCH2 to the COT initiator UE within timing 443a in the resource pool within the COT. For example, within the COT, timing 443a and timing 443c are in the resource pool within the COT. For the COT initiator UE, timing 443a or timing 443c can be used. For PSSCH2, timing 443a can be the earliest timing that meets the minimum time interval MinTimeGapPSFCH, and the SCI for scheduling PSSCH2 can indicate that PSFCH2 can be sent in the resource pool within the COT, so that the receiving UE can send PSFCH2 within timing 443a. However, when the SCI for scheduling PSSCH2 indicates that PSFCH2 cannot be sent in the resource pool within the COT, PSFCH2 can be sent within timing 443b, which is the earliest timing in the resource pool outside the COT that meets the minimum time interval. Therefore, the receiving UE can send PSFCH1 to the sending UE within timing 443b in the resource pool outside the COT. For example, when the transmitting UE is not the initiator of the COT, only the latest opportunity within the COT (e.g., opportunity 443a in Example 440) can be used for PSFCH transmission. Therefore, when the receiving UE cannot bundle the PSFCH transmission to the transmitting UE in opportunity 443a, the receiving UE can fall back to the resource pool outside the COT and select opportunity 443b therein. The receiving UE can select opportunity 443b because opportunity 443b is the earliest opportunity in the resource pool outside the COT that satisfies the minimum time interval MinTimeGapPSFCH. Since the transmitting UE is not aware of the COT, the receiving UE can fall back to the resource pool outside the COT because the transmitting UE will monitor both pools, such as the combined Figure 3 described.

[0094] As indicated above, FIG. 4A to FIG. 4C are provided as examples. Other examples can be found in the FIG. 4A to FIG. 4C The content described is different.

[0095] Figure 5A is a diagram illustrating an example 500 associated with transmitting and receiving HARQ feedback during COT according to the present disclosure. Figure 5A As shown, example 500 includes data transmission 501a (shown as "PSSCH1") from a transmitting UE and data transmission 501b (shown as "PSSCH2") from a COT initiator UE. Therefore, the receiving UE schedules a PSFCH transmission associated with data transmission 501a (shown as "PSFCH1") to the transmitting UE, and schedules a PSFCH transmission associated with data transmission 501b (shown as "PSFCH2") to the COT initiator UE.

[0096] In example 500, the resource set within the COT includes four resource pools. Although described using four resource pools, other examples may include fewer resource pools (e.g., three resource pools or two resource pools) or additional resource pools (e.g., five resource pools, six resource pools, etc.). The resource pools in example 500 have different offsets but the same periodicity. Other examples may include at least two resource pools with different periodicities and / or the same offset.

[0097] like Figure 5A As shown, the receiving UE may send all PSFCH transmissions in the same opportunity 503 in the intra-COT resource pool. For example, the receiving UE may schedule PSFCH transmissions in a certain opportunity in the intra-COT resource pool indicated by the COT-SI and / or SCI of the COT initiator UE.

[0098] Figure 5B 5 is a diagram illustrating an example 520 associated with sending and receiving HARQ feedback during COT according to the present disclosure. Figure 5B As shown, example 520 includes data transmission 501a (shown as "PSSCH1") from a transmitting UE and data transmission 501b (shown as "PSSCH2") from a COT initiator UE. Therefore, the receiving UE schedules a PSFCH transmission associated with data transmission 501a (shown as "PSFCH1") to the transmitting UE, and schedules a PSFCH transmission associated with data transmission 501b (shown as "PSFCH2") to the COT initiator UE.

[0099] In example 520, the resource set within the COT includes four resource pools. Although described using four resource pools, other examples may include fewer resource pools (e.g., three resource pools or two resource pools) or additional resource pools (e.g., five resource pools, six resource pools, etc.). The resource pools in example 520 have different offsets but the same periodicity. Other examples may include at least two resource pools with different periodicities and / or the same offset.

[0100] like Figure 5B As shown, the receiving UE may send a PSFCH transmission to the COT initiator UE at opportunity 523a in the resource pool within the COT. For example, the timing 523a may be indicated by the COT initiator UE in the COT-SI and / or SCI. In addition, the receiving UE may send a PSFCH transmission to the transmitting UE at opportunity 523b in the resource pool within the COT. The receiving UE may select opportunity 523b because opportunity 523b is the latest opportunity in the resource pool within the COT. Therefore, the receiving UE is less likely to interrupt the transmission of the COT initiator UE during the COT.

[0101] Figure 5C5 is a diagram illustrating an example 540 associated with sending and receiving HARQ feedback during COT according to the present disclosure. Figure 5C As shown, example 540 includes data transmission 501a (shown as "PSSCH1") from a transmitting UE and data transmission 501b (shown as "PSSCH2") from a COT initiator UE. Therefore, the receiving UE schedules a PSFCH transmission associated with data transmission 501a (shown as "PSFCH1") to the transmitting UE, and schedules a PSFCH transmission associated with data transmission 501b (shown as "PSFCH2") to the COT initiator UE.

[0102] In example 540, the resource set within the COT includes two resource pools. Although described using two resource pools, other examples may include additional resource pools (e.g., three resource pools, four resource pools, etc.). The resource pools in example 540 have the same offset but different periodicity. Other examples may include at least two resource pools with different offsets and / or the same periodicity.

[0103] like Figure 5C As shown, the receiving UE may send a PSFCH transmission to the COT initiator UE during opportunity 543a in the resource pool within the COT. For example, opportunity 543a may be indicated by the COT initiator UE in the COT-SI and / or SCI. In addition, the receiving UE may send a PSFCH transmission to the transmitting UE during opportunity 543b in the resource pool within the COT. The receiving UE may select opportunity 543b because opportunity 543b is associated with the pool with the longest periodicity in the pool including the latest opportunity at the end of the COT. Therefore, the receiving UE is less likely to interrupt the transmission of the COT initiator UE during the COT.

[0104] As indicated above, FIG. 5A to FIG. 5C are provided as examples. Other examples may vary with respect to FIG. 5A to FIG. 5C The content described.

[0105] Fig. 6A 6 is a diagram illustrating an example 600 associated with a HARQ timeline associated with a COT according to the present disclosure. Fig. 6A As shown, example 600 includes data transmission 601a (shown as "PSSCH1") from a transmitting UE and data transmission 601b (shown as "PSSCH2") from a COT initiator UE. Therefore, the receiving UE schedules a PSFCH transmission associated with data transmission 601a to the transmitting UE and schedules a PSFCH transmission associated with data transmission 601b to the COT initiator UE.

[0106] like Fig. 6AAs shown, the first set of HARQ timelines (represented by K1, K2, K3, and K4 in example 600) is associated with PSFCH transmission outside the COT. Therefore, when sending HARQ feedback outside the COT, the receiving UE can select from the first set of HARQ timelines (or as a fallback, send to the transmitting UE within the COT, as shown in conjunction with Figure 4C Similarly, the second HARQ timeline set (represented by K1ʹ and K2ʹ in example 600) is associated with PSFCH transmission within the COT. Therefore, when sending HARQ feedback within the COT, the receiving UE can select from the second HARQ timeline set.

[0107] Figure 6B 6 is a diagram illustrating an example 620 associated with a HARQ timeline associated with a COT according to the present disclosure. Figure 6B As shown, example 620 includes data transmission 601a (shown as "PSSCH1") from a transmitting UE and data transmission 601b (shown as "PSSCH2") from a COT initiator UE. Therefore, the receiving UE schedules a PSFCH transmission associated with data transmission 601a to the transmitting UE and schedules a PSFCH transmission associated with data transmission 601b to the COT initiator UE.

[0108] In example 620, the receiving UE uses the same resource set (and therefore the same resource pool) for both the intra-COT PSFCH transmission and the extra-COT PSFCH transmission. Figure 6B As shown, a set of HARQ timelines (represented by K1, K2, K3, and K4 in example 620) is associated with PSFCH transmission outside the COT. Therefore, when HARQ feedback is sent outside the COT, the receiving UE can select from the first set of HARQ timelines. In addition, a subset of the set of HARQ timelines (represented by K1 and K2 in example 620) is associated with PSFCH transmission within the COT. Therefore, when HARQ feedback is sent within the COT, the receiving UE can select from the subset of HARQ timelines.

[0109] As indicated above, FIG. 6A to FIG. 6B are provided as examples. Other examples can be found in the FIG. 6A to FIG. 6B The content described is different.

[0110] Figure 7 700 is a diagram illustrating an example process 700 performed, for example, by a UE according to the present disclosure. Example process 700 is a UE (e.g., UE 120 and / or Fig.11 An example of an apparatus 1100) performing operations associated with sending HARQ feedback during and outside of a COT.

[0111] like Figure 7As shown, in some aspects, process 700 may include determining whether a PSFCH transmission is scheduled during a COT (block 710). For example, a UE (e.g., using Fig.11 The depicted communications manager 140 and / or determining component 1108) can determine whether a PSFCH transmission is scheduled during the COT, as described herein.

[0112] like Figure 7 As further shown, in some aspects, process 700 may include: transmitting a PSFCH transmission using a first set of resources based at least in part on determining that the PSFCH transmission is scheduled outside of the COT (block 720a). Fig.11 The communication manager 140 and / or the transmitting component 1104 depicted in FIG. 100 may transmit the PSFCH transmission using the first set of resources based at least in part on determining that the PSFCH transmission is scheduled outside the COT, as described herein. Alternatively, process 700 may include transmitting the PSFCH transmission using the second set of resources based at least in part on determining that the PSFCH transmission is scheduled within the COT (block 720b). For example, the UE (e.g., using the communication manager 140 and / or the transmitting component 1104) may transmit the PSFCH transmission using the second set of resources based at least in part on determining that the PSFCH transmission is scheduled within the COT, as described herein.

[0113] Process 700 may include additional aspects, such as any single aspect or any combination of aspects described below and / or in conjunction with one or more other processes described elsewhere herein.

[0114] In a first aspect, determining whether a PSFCH is scheduled during a COT includes receiving (e.g., using Fig.11 The depicted communications manager 140 and / or receiving component 1102) provides an indication of the COT.

[0115] In a second aspect, alone or in combination with the first aspect, the first set of resources is associated with a first periodicity and a first offset, and the second set of resources is associated with a second periodicity and a second offset.

[0116] In a third aspect, alone or in combination with one or more of the first and second aspects, the second periodicity is longer than the first periodicity.

[0117] In a fourth aspect, alone or in combination with one or more of the first to third aspects, the PSFCH transmission is to a COT initiator node, and the PSFCH transmission is transmitted using a second resource set.

[0118] In a fifth aspect, alone or in combination with one or more of the first to fourth aspects, the PSFCH transmission is directed to a node not associated with the COT, and the PSFCH transmission is transmitted using the latest instance in time in the second resource set.

[0119] In a sixth aspect, either alone or in combination with one or more of the first to fifth aspects, process 700 includes receiving (e.g., using the communication manager 140 and / or receiving component 1102) an SCI indicating an instance in a second resource set for a PSFCH transmission, wherein the PSFCH transmission is for a COT initiator UE.

[0120] In a seventh aspect, alone or in combination with one or more of the first to sixth aspects, the second resource set includes a plurality of resource pools.

[0121] In an eighth aspect, either alone or in combination with one or more of aspects 1 to 7, process 700 includes receiving (e.g., using communication manager 140 and / or receiving component 1102) an indication of a COT, the indication of the COT indicating which of a plurality of resource pools is to be used for PSFCH transmission.

[0122] In a ninth aspect, either alone or in combination with one or more of the first to eighth aspects, process 700 includes receiving (e.g., using the communication manager 140 and / or receiving component 1102) an SCI indicating which resource pool of a plurality of resource pools is used for a PSFCH transmission, wherein the PSFCH transmission is for a COT initiator UE.

[0123] In a tenth aspect, alone or in combination with one or more of the first to ninth aspects, the PSFCH transmission is directed to a node not associated with the COT, and the PSFCH transmission is transmitted using a resource pool having a latest instance in time among multiple resource pools.

[0124] In an eleventh aspect, alone or in combination with one or more of the first to tenth aspects, the first resource set is associated with a first HARQ timeline set, and the second resource set is associated with a second HARQ timeline set.

[0125] although Figure 7 An example block diagram of process 700 is shown, but in some aspects, process 700 may include Figure 7 Additional blocks, fewer blocks, different blocks, or blocks arranged in a different manner than those depicted in the process 700. Additionally or alternatively, two or more blocks of the blocks of process 700 may be performed in parallel.

[0126] Figure 8800 is a diagram illustrating an example process 800 performed, for example, by a UE according to the present disclosure. The example process 800 is a UE (e.g., UE 120 and / or Fig.11 An example of an apparatus 1100) performing operations associated with receiving HARQ feedback during and outside of a COT.

[0127] like Figure 8 As shown, in some aspects, process 800 may include monitoring the PSFCH using a first set of resources associated with feedback received during the COT (block 810). For example, a UE (eg, using Fig.11 The depicted communications manager 140 and / or monitoring component 1110) can monitor the PSFCH using a first set of resources associated with feedback received during the COT, as described herein.

[0128] like Figure 8 As further shown, in some aspects, process 800 may additionally or alternatively include: monitoring the PSFCH using a second set of resources associated with feedback received outside of the COT (block 820). For example, the UE (e.g., using communication manager 140 and / or monitoring component 1110) may monitor the PSFCH using a second set of resources associated with feedback received outside of the COT, as described herein.

[0129] Process 800 may include additional aspects, such as any single aspect or any combination of aspects described below and / or in conjunction with one or more other processes described elsewhere herein.

[0130] In a first aspect, process 800 includes: initiating a COT (e.g., using Fig.11 The depicted communications manager 140 and / or receiving component 1102) and sends (eg, using Fig.11 The depicted communications manager 140 and / or sending component 1104) provides an indication of the COT.

[0131] In a second aspect, alone or in combination with the first aspect, the first set of resources is associated with a first periodicity and a first offset, and the second set of resources is associated with a second periodicity and a second offset.

[0132] In a third aspect, alone or in combination with one or more of the first and second aspects, the second periodicity is longer than the first periodicity.

[0133] In a fourth aspect, either alone or in combination with one or more of the first to third aspects, process 800 includes sending (e.g., using communication manager 140 and / or sending component 1104) an SCI indicating an instance in a second resource set to be used, wherein the UE is a COT initiator UE.

[0134] In a fifth aspect, alone or in combination with one or more of the first to fourth aspects, the second resource set includes a plurality of resource pools.

[0135] In a sixth aspect, either alone or in combination with one or more of the first to fifth aspects, process 800 includes sending (e.g., using communication manager 140 and / or sending component 1104) an indication of a COT, the indication of the COT indicating which resource pool of a plurality of resource pools to use.

[0136] In a seventh aspect, alone or in combination with one or more of the first to sixth aspects, process 800 includes: sending (e.g., using communication manager 140 and / or sending component 1104) an SCI indicating which resource pool of multiple resource pools to use, wherein the UE is a COT initiator UE.

[0137] In an eighth aspect, alone or in combination with one or more of the first to seventh aspects, the first resource set is associated with a first HARQ timeline set, and the second resource set is associated with a second HARQ timeline set.

[0138] although Figure 8 An example block diagram of process 800 is shown, but in some aspects, process 800 may include Figure 8 Additional blocks, fewer blocks, different blocks, or blocks arranged in a different manner than those depicted in the process 800. Additionally or alternatively, two or more blocks of the blocks of process 800 may be performed in parallel.

[0139] Fig. 9 900 is a diagram illustrating an example process 900 performed, for example, by a UE according to the present disclosure. The example process 900 is a UE (e.g., UE 120 and / or Fig.11 An example of an apparatus 1100) performing operations associated with receiving HARQ feedback during and outside of a COT.

[0140] like Fig. 9 As shown, in some aspects, process 900 may include determining whether a PSFCH transmission is scheduled during a COT (block 910). For example, a UE (e.g., using Fig.11 The depicted communications manager 140 and / or determining component 1108) can determine whether a PSFCH transmission is scheduled during the COT, as described herein.

[0141] like Fig. 9 As further shown, in some aspects, process 900 may include: sending a PSFCH transmission according to a HARQ timeline set based at least in part on determining that the PSFCH transmission is scheduled outside of the COT (block 920a). Fig.11The communication manager 140 and / or the transmitting component 1104 depicted in FIG. 100 may transmit the PSFCH transmission according to the HARQ timeline set based at least in part on determining that the PSFCH transmission is scheduled outside the COT, as described herein. Alternatively, the process 900 may include transmitting the PSFCH transmission according to a subset of the HARQ timeline set based at least in part on determining that the PSFCH transmission is scheduled within the COT (block 920b). For example, the UE (e.g., using the communication manager 140 and / or the transmitting component 1104) may transmit the PSFCH transmission according to the subset of the HARQ timeline set based at least in part on determining that the PSFCH transmission is scheduled within the COT, as described herein.

[0142] Process 900 may include additional aspects, such as any single aspect or any combination of aspects described below and / or in conjunction with one or more other processes described elsewhere herein.

[0143] In a first aspect, the determining whether the PSFCH is scheduled during the COT includes: receiving (e.g., using Fig.11 The depicted communications manager 140 and / or receiving component 1102) provides an indication of the COT.

[0144] although Fig. 9 An example block diagram of process 900 is shown, but in some aspects, process 900 may include Fig. 9 Additional blocks, fewer blocks, different blocks, or blocks arranged in a different manner than those depicted in the process 900. Additionally or alternatively, two or more of the blocks in the process 900 may be performed in parallel.

[0145] Fig.10 1 is a diagram illustrating an example process 1000 performed, for example, by a UE according to the present disclosure. Example process 1000 is a UE (e.g., UE 120 and / or Fig.11 An example of an apparatus 1100) performing operations associated with receiving HARQ feedback during and outside of a COT.

[0146] like Fig.10 As shown, in some aspects, process 1000 may include monitoring the PSFCH according to a subset of the HARQ timeline set associated with feedback received during the COT (block 1010). For example, a UE (eg, using Fig.11 The depicted communications manager 140 and / or monitoring component 1110) can monitor the PSFCH according to a subset of the HARQ timeline set associated with feedback received during the COT, as described herein.

[0147] like Fig.10As further shown, in some aspects, process 1000 may include monitoring the PSFCH according to remaining HARQ timelines in the set of HARQ timelines associated with feedback received outside the COT based at least in part on not receiving feedback on the PSFCH during the subset of HARQ timelines (block 1020). For example, the UE (e.g., using communication manager 140 and / or monitoring component 1110) may monitor the PSFCH according to remaining HARQ timelines in the set of HARQ timelines associated with feedback received outside the COT based at least in part on not receiving feedback on the PSFCH during the subset of HARQ timelines, as described herein.

[0148] Process 1000 may include additional aspects, such as any single aspect or any combination of aspects described below and / or in conjunction with one or more other processes described elsewhere herein.

[0149] In a first aspect, process 1000 includes: initiating a COT (e.g., using Fig.11 The depicted communications manager 140 and / or receiving component 1102) and sends (eg, using Fig.11 The depicted communications manager 140 and / or sending component 1104) provides an indication of the COT.

[0150] although Fig.10 An example block diagram of process 1000 is shown, but in some aspects, process 1000 may include Fig.10 Additional blocks, fewer blocks, different blocks, or blocks arranged in a different manner than those depicted in the process 1000. Additionally or alternatively, two or more blocks of the blocks of process 1000 may be performed in parallel.

[0151] Fig.11 1 is a diagram of an example apparatus 1100 for wireless communication according to the present disclosure. The apparatus 1100 may be a UE, or the UE may include the apparatus 1100. In some aspects, the apparatus 1100 includes a receiving component 1102 and a sending component 1104 that may communicate with each other (e.g., via one or more buses and / or one or more other components). As shown, the apparatus 1100 may communicate with another apparatus 1106 (such as a UE, a base station, or another wireless communication device) using the receiving component 1102 and the sending component 1104. As further shown, the apparatus 1100 may include a communication manager 140. The communication manager 140 may include one or more of a determining component 1108 and / or a monitoring component 1110, among others.

[0152] In some aspects, the apparatus 1100 may be configured to perform Figure 3 , FIG. 4A to FIG. 4C , FIG. 5A to FIG. 5C and / or FIG. 6A to FIG. 6B Additionally or alternatively, the apparatus 1100 may be configured to perform one or more processes described herein, such as Figure 7 The process of 700 Figure 8 The process of 800 Fig. 9 The process of 900 Fig.10 In some aspects, the apparatus 1100 and / or Fig.11 One or more of the components shown in the figure may include a combination of Figure 2 Additionally or alternatively, Fig.11 One or more of the components shown may be combined with Figure 2 Additionally or alternatively, one or more components in the set of components may be implemented at least in part as software stored in a memory. For example, a component (or a portion of a component) may be implemented as instructions or codes that are stored in a non-transitory computer-readable medium and can be executed by a controller or processor to perform the function or operation of the component.

[0153] The receiving component 1102 may receive communications, such as reference signals, control information, data communications, or combinations thereof, from the device 1106. The receiving component 1102 may provide the received communications to one or more other components of the device 1100. In some aspects, the receiving component 1102 may perform signal processing (such as filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, demapping, equalization, interference cancellation, or decoding, etc.) on the received communications and may provide the processed signals to one or more other components of the device 1100. In some aspects, the receiving component 1102 may include combining Figure 2 One or more antennas, modems, demodulators, MIMO detectors, receive processors, controllers / processors, memories, or combinations thereof of a described UE.

[0154] The transmitting component 1104 may transmit communications, such as reference signals, control information, data communications, or combinations thereof, to the device 1106. In some aspects, one or more other components of the device 1100 may generate communications and may provide the generated communications to the transmitting component 1104 for transmission to the device 1106. In some aspects, the transmitting component 1104 may perform signal processing (such as filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding, etc.) on the generated communications and may transmit the processed signals to the device 1106. In some aspects, the transmitting component 1104 may include combining Figure 2One or more antennas, modems, modulators, transmit MIMO processors, transmit processors, controllers / processors, memories, or combinations thereof of the described UE. In some aspects, the transmit component 1104 can be co-located with the receive component 1102 in a transceiver.

[0155] In some aspects, the apparatus 1100 may send feedback on a sidelink channel. The determining component 1108 may determine whether a PSFCH transmission is scheduled during the COT. The determining component 1108 may include combining Figure 2 The described UE's modem, modulator, transmit MIMO processor, transmit processor, controller / processor, memory, or combination thereof. Thus, the transmitting component 1104 can transmit the PSFCH transmission using the first resource set based at least in part on the determining component 1108 determining that the PSFCH transmission is scheduled outside the COT. Alternatively, the transmitting component 1104 can transmit the PSFCH transmission using the second resource set based at least in part on the determining component 1108 determining that the PSFCH transmission is scheduled within the COT.

[0156] In some aspects, receiving component 1102 may receive an SCI indicating an instance in the second resource set for PSFCH transmission. Alternatively, receiving component 1102 may receive an indication of a COT indicating which resource pool of a plurality of resource pools in the second resource set to use for PSFCH transmission. Alternatively, receiving component 1102 may receive an SCI indicating which resource pool of a plurality of resource pools in the second resource set to use for PSFCH transmission.

[0157] Alternatively, transmitting component 1104 can transmit the PSFCH transmission according to the HARQ timeline set based at least in part on determining component 1108 determining that the PSFCH transmission is scheduled outside the COT. Similarly, transmitting component 1104 can transmit the PSFCH transmission according to a subset of the HARQ timeline set based at least in part on determining component 1108 determining that the PSFCH transmission is scheduled within the COT.

[0158] In some aspects, the apparatus 1100 may receive feedback on a sidelink channel. Thus, the monitoring component 1110 may monitor the PSFCH using a first set of resources associated with the feedback received during the COT. The monitoring component 1110 may include combining Figure 2One or more antennas, modems, demodulators, MIMO detectors, receive processors, controllers / processors, memories, or combinations thereof of the described UE. Additionally or alternatively, the monitoring component 1110 can monitor the PSFCH using a second resource set associated with feedback received outside of the COT. In some aspects, the receiving component 1102 can initiate the COT, and the sending component 1104 can send an indication of the COT.

[0159] In some aspects, the sending component 1104 may send an SCI indicating an instance in the second set of resources to use. Alternatively, the sending component 1104 may send an indication of a COT indicating which resource pool of a plurality of resource pools in the second set of resources to use. Alternatively, the sending component 1104 may send an SCI indicating which resource pool of a plurality of resource pools in the second set of resources to use.

[0160] Alternatively, monitoring component 1110 can monitor the PSFCH according to a subset of the HARQ timeline set associated with feedback received during the COT. Further, monitoring component 1110 can monitor the PSFCH according to remaining HARQ timelines in the HARQ timeline set associated with feedback received outside the COT based at least in part on not receiving feedback on the PSFCH during the subset of HARQ timelines. In some aspects, receiving component 1102 can initiate a COT, and sending component 1104 can send an indication of the COT.

[0161] Fig.11 The number and arrangement of components shown in the figure are provided as examples. In practice, there may be Fig.11 Additional components, fewer components, different components, or components arranged in a different manner than those shown in FIG. Fig.11 Two or more components shown in may be implemented in a single component, or Fig.11 The single component shown in may be implemented as multiple distributed components. Additionally or alternatively, Fig.11 The assembly of (one or more) components shown in the executable is described as being composed of Fig.11 Another collection of components shown in the figure performs one or more functions.

[0162] The following provides an overview of some aspects of the disclosure:

[0163] Aspect 1: A method of wireless communication performed by a user equipment (UE), the method comprising: determining whether a physical sidelink feedback channel (PSFCH) transmission is scheduled during a channel occupancy time (COT); and sending the PSFCH transmission using a first resource set based at least in part on determining that the PSFCH transmission is scheduled outside the COT, or sending the PSFCH transmission using a second resource set based at least in part on determining that the PSFCH transmission is scheduled within the COT.

[0164] Aspect 2: The method according to aspect 1, wherein determining whether the PSFCH is scheduled during the COT includes: receiving an indication of the COT.

[0165] Aspect 3: The method according to any one of Aspects 1 to 2, wherein the first resource set is associated with a first periodicity and a first offset, and the second resource set is associated with a second periodicity and a second offset.

[0166] Aspect 4: The method according to aspect 3, wherein the second periodicity is longer than the first periodicity.

[0167] Aspect 5: The method according to any one of aspects 1 to 4, wherein the PSFCH transmission is for a COT initiator node, and the PSFCH transmission is transmitted using the second resource set.

[0168] Aspect 6: The method according to any one of aspects 1 to 4, wherein the PSFCH transmission is for a node not associated with the COT, and the PSFCH transmission is transmitted using the latest instance in time in the second resource set.

[0169] Aspect 7: According to the method of any one of Aspects 1 to 4, the method further includes: receiving side link control information (SCI), the SCI indicating an instance in the second resource set used for the PSFCH transmission, wherein the PSFCH transmission is for a COT initiator UE.

[0170] Aspect 8: The method according to any one of Aspects 1 to 4, wherein the second resource set includes multiple resource pools.

[0171] Aspect 9: According to the method of aspect 8, the method further includes: receiving an indication of the COT, the indication of the COT indicating which resource pool among the multiple resource pools is used to perform the PSFCH transmission.

[0172] Aspect 10: According to the method of aspect 8, the method further includes: receiving side link control information (SCI), the SCI indicating which resource pool of the multiple resource pools is used for the PSFCH transmission, wherein the PSFCH transmission is for the COT initiator UE.

[0173] Aspect 11: The method according to aspect 8, wherein the PSFCH transmission is for a node not associated with the COT, and the PSFCH transmission is transmitted using a resource pool having a latest instance in time among the multiple resource pools.

[0174] Aspect 12: The method according to any one of aspects 1 to 11, wherein the first resource set is associated with a first hybrid automatic repeat request (HARQ) timeline set, and the second resource set is associated with a second HARQ timeline set.

[0175] Aspect 13: A method of wireless communication performed by a user equipment (UE), the method comprising: monitoring a physical sidelink feedback channel (PSFCH) using a first set of resources associated with feedback received during a channel occupancy time (COT); monitoring the PSFCH using a second set of resources associated with feedback received outside the COT; or a combination thereof.

[0176] Aspect 14: The method according to aspect 13, further comprising: initiating the COT and sending an indication of the COT.

[0177] Aspect 15: The method according to any one of aspects 13 to 14, wherein the first resource set is associated with a first periodicity and a first offset, and the second resource set is associated with a second periodicity and a second offset.

[0178] Aspect 16: The method according to Aspect 15, wherein the second periodicity is longer than the first periodicity.

[0179] Aspect 17: The method according to any one of aspects 13 to 16, the method further comprising: sending side link control information (SCI), the SCI indicating an instance in the second resource set to be used, wherein the UE is a COT initiator UE.

[0180] Aspect 18: The method according to any one of Aspects 13 to 16, wherein the second resource set includes multiple resource pools.

[0181] Aspect 19: The method according to Aspect 18, further comprising: sending an indication of the COT, the indication of the COT indicating which resource pool among the multiple resource pools to use.

[0182] Aspect 20: The method according to aspect 18, the method further comprising: sending side link control information (SCI), the SCI indicating which resource pool of the multiple resource pools to use, wherein the UE is a COT initiator UE.

[0183] Aspect 21: The method according to any one of aspects 13 to 20, wherein the first resource set is associated with a first hybrid automatic repeat request (HARQ) timeline set, and the second resource set is associated with a second HARQ timeline set.

[0184] Aspect 22: A method of wireless communication performed by a user equipment (UE), the method comprising: determining whether a physical sidelink feedback channel (PSFCH) transmission is scheduled during a channel occupancy time (COT); and sending the PSFCH transmission according to a hybrid automatic repeat request (HARQ) timeline set based at least in part on determining that the PSFCH transmission is scheduled outside the COT, or sending the PSFCH transmission according to a subset of the HARQ timeline set based at least in part on determining that the PSFCH transmission is scheduled within the COT.

[0185] Aspect 23: The method according to aspect 22, wherein the determining whether the PSFCH is scheduled during the COT includes: receiving an indication of the COT.

[0186] Aspect 24: A method of wireless communication performed by a user equipment (UE), the method comprising: monitoring a physical sidelink feedback channel (PSFCH) according to a subset of a hybrid automatic repeat request (HARQ) timeline set associated with feedback received during a channel occupancy time (COT); and monitoring the PSFCH according to remaining HARQ timelines in the HARQ timeline set associated with feedback received outside the COT based at least in part on the fact that feedback was not received on the PSFCH during the subset of the HARQ timelines.

[0187] Aspect 25: The method according to aspect 24, further comprising: initiating the COT and sending an indication of the COT.

[0188] Aspect 26: An apparatus for performing wireless communications at a device, the apparatus comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform one or more of the methods described in Aspects 1 to 12.

[0189] Aspect 27: A device for wireless communication, the device comprising: a memory; and one or more processors, the one or more processors coupled to the memory, the one or more processors configured to execute the method according to one or more of aspects 1 to 12.

[0190] Aspect 28: An apparatus for wireless communication, the apparatus comprising at least one component configured to perform the method according to one or more of aspects 1 to 12.

[0191] Aspect 29: A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by a processor to perform the method according to one or more of aspects 1 to 12.

[0192] Aspect 30: A non-transitory computer-readable medium storing an instruction set for wireless communication, the instruction set comprising one or more instructions which, when executed by one or more processors of a device, cause the device to perform one or more of the methods described in aspects 1 to 12.

[0193] Aspect 31: An apparatus for performing wireless communications at a device, the apparatus comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform one or more of the methods described in Aspects 13 to 21.

[0194] Aspect 32: A device for wireless communication, the device comprising: a memory; and one or more processors, the one or more processors coupled to the memory, the one or more processors configured to execute the method according to one or more of aspects 13 to 21.

[0195] Aspect 33: An apparatus for wireless communication, the apparatus comprising at least one component configured to perform the method according to one or more of aspects 13 to 21.

[0196] Aspect 34: A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by a processor to perform the method according to one or more of aspects 13 to 21.

[0197] Aspect 35: A non-transitory computer-readable medium storing an instruction set for wireless communication, the instruction set comprising one or more instructions which, when executed by one or more processors of a device, cause the device to perform one or more of the methods described in aspects 13 to 21.

[0198] Aspect 36: An apparatus for performing wireless communications at a device, the apparatus comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform one or more of the methods described in Aspects 22 to 23.

[0199] Aspect 37: A device for wireless communication, the device comprising: a memory; and one or more processors, the one or more processors coupled to the memory, the one or more processors configured to execute the method according to one or more of aspects 22 to 23.

[0200] Aspect 38: An apparatus for wireless communication, the apparatus comprising at least one component configured to perform the method according to one or more of aspects 22 to 23.

[0201] Aspect 39: A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by a processor to perform the method according to one or more of aspects 22 to 23.

[0202] Aspect 40: A non-transitory computer-readable medium storing an instruction set for wireless communication, the instruction set comprising one or more instructions which, when executed by one or more processors of a device, cause the device to perform one or more of the methods described in aspects 22 to 23.

[0203] Aspect 41: An apparatus for performing wireless communications at a device, the apparatus comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform one or more of the methods described in Aspects 24 to 25.

[0204] Aspect 42: A device for wireless communication, the device comprising: a memory; and one or more processors, the one or more processors coupled to the memory, the one or more processors configured to execute the method according to one or more of aspects 24 to 25.

[0205] Aspect 43: An apparatus for wireless communication, the apparatus comprising at least one component configured to perform the method according to one or more of aspects 24 to 25.

[0206] Aspect 44: A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by a processor to perform the method according to one or more of aspects 24 to 25.

[0207] Aspect 45: A non-transitory computer-readable medium storing an instruction set for wireless communication, the instruction set comprising one or more instructions which, when executed by one or more processors of a device, cause the device to perform one or more of the methods described in aspects 24 to 25.

[0208] While the foregoing disclosure provides illustration and description, it is not intended to be exhaustive or to limit the aspects to the precise forms disclosed. Modifications and variations are possible in light of the above disclosure or may be acquired from practice of these aspects.

[0209] As used herein, the term "component" is intended to be broadly interpreted as a combination of hardware and / or hardware and software. Whether referred to as software, firmware, middleware, microcode, hardware description language or other names, "software" should be broadly interpreted as meaning instructions, instruction sets, codes, code segments, program codes, programs, subroutines, software modules, applications, software applications, software packages, routines, subroutines, objects, executable files, threads, processes and / or functions implemented, etc. As used herein, a "processor" is implemented in a combination of hardware and / or hardware and software. It will be clear that the systems and / or methods described herein can be implemented by a combination of hardware and / or hardware and software in different forms. The actual dedicated control hardware or software code used to implement these systems and / or methods does not limit various aspects. Therefore, the operation and behavior of the system and / or method are not described herein with reference to specific software codes, because those skilled in the art will understand that software and hardware can be designed to implement the system and / or method based at least in part on the description herein.

[0210] As used herein, "satisfying a threshold" may refer to a value being greater than a threshold, greater than or equal to a threshold, less than a threshold, less than or equal to a threshold, equal to a threshold, not equal to a threshold, etc., depending on the context.

[0211] Although specific combinations of features are set forth in the claims and / or disclosed in the specification, these combinations are not intended to limit the disclosure of the various aspects. Many of these features can be combined in a manner that is not specifically described in the claims and / or disclosed in the specification. The disclosure of each aspect includes each dependent claim combined with each other claim in the claim set. As used herein, a phrase referring to "at least one of" a list of items refers to any combination of these items (including a single member). As an example, "at least one of a, b, or c" is intended to cover a, b, c, a+b, a+c, b+c, and a+b+c, as well as any combination with multiple identical elements (e.g., a+a, a+a+a, a+a+b, a+a+c, a+b+b, a+c+c, b+b, b+b+b, b+b+c, c+c, and c+c+c, or any other ordering of a, b, and c).

[0212] Any element, action or instruction used herein should not be interpreted as key or necessary unless clearly stated. In addition, as used herein, the articles "one" and "a kind of" are intended to include one or more items and can be used interchangeably with "one or more". In addition, as used herein, the article "said" is intended to include one or more items connected to the article "said", and can be used interchangeably with "one or more". In addition, as used herein, the terms "set" and "group" are intended to include one or more items and can be used interchangeably with "one or more". If only one item is intended to be referred to, the phrase "only one" or similar terms are used. In addition, as used herein, the terms "have", "have", "have" etc. are intended to be open terms, which do not limit the elements they modify (for example, "elements with" A can also have B). In addition, the phrase "based on" is intended to mean "based at least in part on", unless otherwise explicitly stated. Furthermore, as used herein, the term "or" when used in a series is intended to be open-ended and may be used interchangeably with "and / or" unless expressly stated otherwise (eg, if used in conjunction with "either" or "only one of").

Claims

1. An apparatus for wireless communication at a user equipment (UE), the apparatus comprising: processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to: determining whether a physical sidelink feedback channel (PSFCH) transmission is scheduled during a channel occupancy time (COT); and The PSFCH transmission is sent using a first set of resources based at least in part on a determination that the PSFCH transmission is scheduled outside the COT, or the PSFCH transmission is sent using a second set of resources based at least in part on a determination that the PSFCH transmission is scheduled within the COT.

2. The device according to claim 1, wherein: The instructions for determining whether the PSFCH is scheduled during the COT are executable by the processor to cause the apparatus to: An indication of the COT is received.

3. The device according to claim 1, wherein: The first set of resources is associated with a first periodicity and a first offset, and the second set of resources is associated with a second periodicity and a second offset.

4. The device according to claim 3, wherein: The second periodicity is longer than the first periodicity.

5. The device according to claim 1, wherein: The PSFCH transmission is for the COT initiator node, and the PSFCH transmission is transmitted using the second resource set.

6. The device according to claim 1, wherein: The PSFCH transmission is for a node not associated with the COT, and the PSFCH transmission is transmitted using a temporally latest instance in the second resource set.

7. The device according to claim 1, wherein: The instructions are further executable by the processor to cause the apparatus to: receiving side link control information (SCI), the SCI indicating an instance in which the second resource set is used for the PSFCH transmission, The PSFCH transmission is for the COT initiator UE.

8. The device according to claim 1, wherein: The second resource set includes multiple resource pools.

9. The device according to claim 8, wherein: The instructions are further executable by the processor to cause the apparatus to: An indication of the COT is received, wherein the indication of the COT indicates which resource pool among the multiple resource pools is used for the PSFCH transmission.

10. The device according to claim 8, wherein: The instructions are further executable by the processor to cause the apparatus to: receiving side link control information (SCI), the SCI indicating which resource pool of the plurality of resource pools to use for the PSFCH transmission, The PSFCH transmission is for the COT initiator UE.

11. The device according to claim 8, wherein: The PSFCH transmission is for a node not associated with the COT, and the PSFCH transmission is transmitted using a resource pool having a latest instance in time among the multiple resource pools.

12. The device according to claim 1, wherein: The first set of resources is associated with a first hybrid automatic repeat request (HARQ) timeline set, and the second set of resources is associated with a second HARQ timeline set.

13. An apparatus for wireless communication at a user equipment (UE), the apparatus comprising: processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to: monitoring a physical sidelink feedback channel (PSFCH) using a first set of resources associated with feedback received during a channel occupancy time (COT); monitoring the PSFCH using a second set of resources associated with feedback received outside the COT; or A combination of them.

14. The device according to claim 13, wherein: The instructions are further executable by the processor to cause the apparatus to: The COT is initiated and an indication of the COT is sent.

15. The device according to claim 13, wherein: The first set of resources is associated with a first periodicity and a first offset, and the second set of resources is associated with a second periodicity and a second offset.

16. The device according to claim 15, wherein: The second periodicity is longer than the first periodicity.

17. The device according to claim 13, wherein: The instructions are further executable by the processor to cause the apparatus to: transmitting side link control information (SCI), the SCI indicating an instance of the second resource set to be used, The UE is a COT initiator UE.

18. The device according to claim 13, wherein: The second resource set includes a plurality of resource pools.

19. The apparatus of claim 18, wherein the one or more processors are further configured to: An indication of the COT is sent, the indication of the COT indicating which resource pool of the plurality of resource pools to use.

20. The device according to claim 18, wherein The instructions are further executable by the processor to cause the apparatus to: sending side link control information (SCI), the SCI indicating which resource pool of the plurality of resource pools to use, The UE is a COT initiator UE.

21. The device according to claim 13, wherein: The first set of resources is associated with a first hybrid automatic repeat request (HARQ) timeline set, and the second set of resources is associated with a second HARQ timeline set.

22. An apparatus for wireless communication at a user equipment (UE), the apparatus comprising: processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to: determining whether a physical sidelink feedback channel (PSFCH) transmission is scheduled during a channel occupancy time (COT); and The PSFCH transmission is sent according to a hybrid automatic repeat request (HARQ) timeline set based at least in part on a determination that the PSFCH transmission is scheduled outside the COT, or the PSFCH transmission is sent according to a subset of the HARQ timeline set based at least in part on a determination that the PSFCH transmission is scheduled within the COT.

23. The device according to claim 22, wherein: The instructions for determining whether the PSFCH is scheduled during the COT are executable by the processor to cause the apparatus to: An indication of the COT is received.

24. An apparatus for wireless communication at a user equipment (UE), the apparatus comprising: processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to: monitoring a physical sidelink feedback channel (PSFCH) according to a subset of a hybrid automatic repeat request (HARQ) timeline set associated with feedback received during a channel occupancy time (COT); as well as The PSFCH is monitored according to remaining HARQ timelines in the set of HARQ timelines associated with feedback received outside the COT based at least in part on not receiving feedback on the PSFCH during the subset of HARQ timelines.

25. The device according to claim 24, wherein: The instructions are further executable by the processor to cause the apparatus to: The COT is initiated and an indication of the COT is sent.

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