Cyclic prefix extension selection

Abstract

Various aspects of the present disclosure generally relate to wireless communications. In some aspects, a user equipment (UE) may select a first cyclic prefix extension (CPE) or a second CPE based at least in part on one or more conditions, the first cyclic prefix extension (CPE) reduces a gap between a first time slot and a second time slot in a channel occupancy time (COT) to a size that protects contiguous sidelink transmissions by the UE in the first time slot and the second time slot, the second CPE not reducing the gap to the size. The UE may attempt to transmit a communication with a selected one of the first CPE or the second CPE in the second time slot based at least in part on the one or more conditions. Numerous other aspects are described.

Description

Technical Field

[0001] All aspects of this disclosure relate to wireless communication in general, and to techniques and apparatus for selecting cyclic prefix spread during shared channel occupancy time. Background Technology

[0002] Wireless communication systems are widely deployed to provide a variety of telecommunications services, such as telephone, video, data, messaging, and broadcasting. Typical wireless communication systems employ multiple access technologies that enable 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 collection of enhancements to the Universal Mobile Telecommunications System (UMTS) mobile standard issued by the 3rd Generation Partnership Project (3GPP).

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

[0004] The aforementioned multiple access technologies have been adopted in various telecommunications standards to provide a common protocol that enables different UEs to communicate at the city, country, region, and / or global levels. New Radio (NR) (which may be referred to as 5G) is a set of enhancements to the LTE mobile standard issued by 3GPP. NR is designed to better support mobile broadband internet access by: improving spectrum efficiency; reducing costs; improving service; utilizing new spectrum; and better integrating with other open standards by using Orthogonal Frequency Division Multiplexing (OFDM) with Cyclic Prefix (CP) on the downlink (CP-OFDM), and CP-OFDM and / or Single Carrier Frequency Division Multiplexing (SC-FDM) (also known as Discrete Fourier Transform Extended OFDM (DFT-s-OFDM)) on the uplink; and supporting beamforming, Multiple-Input Multiple-Output (MIMO) antenna technologies and carrier aggregation. Further improvements to LTE, NR, and other radio access technologies remain useful as the demand for mobile broadband access continues to increase. Summary of the Invention

[0005] Some aspects described herein relate to a method for wireless communication performed by a user equipment (UE). The method may include: selecting a first cyclic prefix spread (CPE) or a second CPE based at least in part on one or more conditions, wherein the first cyclic prefix spread (CPE) reduces the gap between a first and a second time slot in the channel occupied time (COT) to a size that protects continuous sidelink transmissions performed by the UE in the first and second time slots, and the second CPE reduces the gap to that size. The method may also include: attempting to transmit communication in the second time slot using the selected CPE from the first or second CPE, based at least in part on one or more conditions.

[0006] Some aspects described herein relate to a UE for wireless communication. The UE may include one or more memories and one or more processors coupled to the one or more memories. The one or more processors may be configured to select a first CPE or a second CPE based at least in part on one or more conditions, wherein the first CPE reduces the gap between a first timeslot and a second timeslot in the Coordinated Optical Transmission (COT) to a size that protects continuous sidelink transmissions performed by the UE in the first and second timeslots, and the second CPE does not reduce the gap to that size. The one or more processors may be configured to attempt to transmit communication in the second timeslot using the selected CPE from the first or second CPE, based at least in part on one or more conditions.

[0007] Some aspects described herein relate to a non-transitory computer-readable medium storing a set of instructions for wireless communication by a UE. When executed by one or more processors of the UE, the set of instructions enables the UE to select a first CPE or a second CPE, at least in part, based on one or more conditions. The first CPE reduces the gap between a first and a second time slot in the COT to a size that protects the UE for continuous sidelink transmissions in both the first and second time slots, while the second CPE does not reduce the gap to that size. When executed by one or more processors of the UE, the set of instructions enables the UE to attempt to transmit communication in the second time slot using either the first or the selected second CPE, at least in part, based on one or more conditions.

[0008] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include components for selecting a first CPE or a second CPE based at least in part on one or more conditions, wherein the first CPE reduces the gap between a first timeslot and a second timeslot in the Co-location Array (COT) to a size that protects continuous sidelink transmissions performed by the apparatus in the first and second timeslots, and the second CPE does not reduce the gap to that size. The apparatus may also include components for attempting to transmit communication in the second timeslot using the selected CPE from the first or second CPE, based at least in part on one or more conditions.

[0009] The entirety of the categories includes methods, apparatus, systems, computer program products, non-transitory computer-readable media, UEs, base stations, network entities, network nodes, wireless communication devices, and / or processing systems as fully described herein with reference to the accompanying drawings and description and illustrated as illustrated in the drawings and description.

[0010] The features and technical advantages of the examples according to this disclosure have been summarized rather extensively above in order to better understand the detailed description below. Additional features and advantages will be described below. The disclosed concepts and specific examples can be readily utilized as the basis for modifying or designing other structures for achieving the same purpose of this disclosure. Such equivalent constructions do not depart from the scope of the appended claims. The characteristics of the concepts disclosed herein, in both their organization and manner of operation, and the associated advantages, will be better understood by considering the following description in conjunction with the accompanying drawings. Each drawing provided in the drawings is for illustrative and descriptive purposes and not as a limitation of the definitions in the claims.

[0011] While aspects are described herein by way of example, those skilled in the art will understand that such aspects can be implemented in many different arrangements and scenarios. The techniques described herein can be implemented using different platform types, devices, systems, shapes, sizes, and / or package arrangements. For example, some aspects can be implemented via integrated chip implementations or other devices based on non-modular components (e.g., end-user equipment, vehicles, communication equipment, computing devices, industrial equipment, retail / shopping devices, medical devices, and / or artificial intelligence devices). 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. Devices incorporating the described aspects and features may include additional components and features for implementing and practicing the claimed and described aspects. 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 aspects described herein are intended to be practiced in a wide variety of devices, components, systems, distributed arrangements, and / or end-user equipment of various sizes, shapes, and configurations. Attached Figure Description

[0012] To gain a full understanding of the foregoing features of this disclosure, a more specific description of the invention, briefly outlined 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 drawings illustrate only certain typical aspects of this disclosure and are therefore not to be considered as limiting its scope, as other equally valid aspects are permissible in this description. The same reference numerals in different drawings may identify the same or similar elements.

[0013] Figure 1 This is a diagram illustrating an example of a wireless network according to the present disclosure.

[0014] Figure 2 This 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.

[0015] Figure 3 This is a diagram illustrating an example of sidelink communication according to this disclosure.

[0016] Figure 4 This is a diagram illustrating examples of sidelink communication and access link communication according to this disclosure.

[0017] Figure 5 This is a diagram illustrating an example of selecting sidelink resources according to this disclosure.

[0018] Figure 6This is a diagram illustrating an example of a Channel Occupancy Time (COT) sharing problem according to this disclosure.

[0019] Figure 7 This is a diagram illustrating an example of a COT shared offset according to this disclosure.

[0020] Figure 8 This is a diagram illustrating an example of the gap between sidelink transmissions according to this disclosure.

[0021] Figure 9 This is a diagram illustrating an example of selecting a cyclic prefix extension (CPE) based on one or more conditions according to this disclosure.

[0022] Figure 10 This is a diagram illustrating an example of selecting a CPE based on priority according to this disclosure.

[0023] Figure 11 This is a diagram illustrating an example of selecting a CPE based on priority according to this disclosure.

[0024] Figure 12 This is a diagram illustrating an example process performed, for example, at the UE or a device of the UE, according to this disclosure.

[0025] Figure 13 This is a diagram of an example device for wireless communication according to the present disclosure. Detailed Implementation

[0026] User Equipment (UE) can operate in an unlicensed sidelink (SL-U). If the UE determines that the channel is idle, it can treat the channel as idle for the maximum duration or for the channel occupied time (COT). If the UE does not need to use the entire COT for transmission or reception, the first UE can share the COT with another UE. The UE can seek to maintain the COT and can use a Cyclic Prefix Extension (CPE) to maintain the COT. In some examples, the UE can send a Cyclic Prefix Extension (CPE) that includes the start of transmission in the gap between the first and second communications. The UE can send a CPE to begin transmission at a starting position before the first symbol of the second communication's schedule. The UE can transmit communications in the first time slot. A gap may exist between the first and second time slots. If the gap is larger than the size of the protection for continuous transmission in the COT, another UE can gain access and transmit in the communications in the second time slot, thus preventing UE1 from transmitting in the second time slot. If the gap is the size of the protection for continuous transmission (or not larger than that size), the UE can transmit communications in the second time slot without being preempted by another UE.

[0027] In some examples, the UE may follow either the first scheme or the second scheme. In the first scheme, the UE may select a pre-configured default CPE with a default CPE starting location. In the second scheme, the UE may use a CPE with a starting location randomly selected from multiple candidate CPEs with CPE starting locations. One or more candidate CPEs may be mapped to transmission priorities. In some examples, the UE may use only the pre-configured default CPE.

[0028] However, different types of CPEs, different priorities, and different COT initiators can lead to confusion about which CPE to use during the gap. This confusion may cause some higher-priority communications to be preempted or the UE to prematurely lose maintenance of the COT. Such issues can increase latency and consume signaling resources.

[0029] Based on the various aspects described herein, a UE can choose a first CPE that protects its sidelink transmissions in consecutive time slots or a second CPE that does not protect its sidelink transmissions in consecutive time slots (or does not ensure that continuous sidelink transmissions are protected). The second CPE can be a configured default CPE or one of several candidate CPEs. The UE can select the first or second CPE based at least in part on one or more conditions. Conditions may include whether the UE is a COT initiator or a responding UE. Conditions may include whether the UE is using frequency division multiplexing (FDM) with another UE. Conditions may include whether the UE has a higher or lower priority than another UE. Conditions may involve other considerations regarding whether the UE should utilize a particular CPE to protect continuous transmissions.

[0030] By selecting a CPE based on one or more specified conditions, the UE can reduce the probability that its transmission will be blocked or not transmitted, and increase the probability that the UE can maintain UE-initiated COT. Selecting a CPE based on one or more specified conditions also reduces the probability that higher-priority transmissions will be preempted by lower-priority transmissions. Therefore, latency is reduced and signaling resources are saved.

[0031] The various aspects of this disclosure are described more fully below with reference to the accompanying drawings. However, this disclosure may be embodied in many different forms and should not be construed as limited to any particular structure or function presented throughout this disclosure. Rather, these aspects are provided to make this disclosure thorough and complete, and to fully convey the scope of this disclosure to those skilled in the art. Those skilled in the art will appreciate that the scope of this disclosure is intended to cover any aspect of this disclosure disclosed herein, whether implemented independently or in combination with any other aspect of this disclosure. For example, any number of aspects set forth herein may be used to implement an apparatus or practice. Furthermore, the scope of this disclosure is intended to cover such apparatus or methods practiced using structures, functionalities, or structures and functionalities other than or different from the various aspects of the disclosure set forth herein. It should be understood that any aspect of the disclosure herein may be embodied by one or more elements of the claims.

[0032] Various devices and techniques will now be used to illustrate several aspects of a telecommunications system. These devices and techniques will be described in detail below and illustrated in the accompanying drawings by various blocks, modules, components, circuits, steps, processes, or algorithms (collectively, “elements”). These elements may 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 system as a whole.

[0033] Although terms generally associated with 5G or New Radio (NR) Radio Access Technology (RAT) may be used herein to describe aspects, aspects of this disclosure may be applied to other RATs, such as 3G RAT, 4G RAT and / or 5G and later (e.g., 6G) RATs.

[0034] Figure 1This 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., LTE) network, or may include elements of a 5G (e.g., NR) network and / or elements of a 4G (e.g., 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), one or more UEs 120 (shown as UE 120a, UE 120b, UE 120c, UE 120d, and UE 120e), and / or other entities. Network node 110 is a network node that communicates with UE 120. As shown, network node 110 may include one or more network nodes. For example, network node 110 can be an aggregated network node, meaning that an aggregated 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). As another example, network node 110 can be a decomposed network node (sometimes referred to as a decomposed base station), meaning that network node 110 is configured to utilize a protocol stack that is physically or logically distributed among 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)).

[0035] In some examples, network node 110 is or includes network nodes (such as RUs) that communicate with UE 120 via a radio access link. In some examples, network node 110 is or includes network nodes (such as DUs) that communicate with other network nodes 110 via a fronthaul or midhaul link. In some examples, network node 110 is or includes network nodes (such as CUs) that communicate with other network nodes 110 via a midhaul link or with the core network via a backhaul link. In some examples, network node 110 (such as aggregated network node 110 or 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. Network node 110 may include, for example, NR base stations, LTE base stations, Node Bs, eNBs (e.g., in 4G), gNBs (e.g., in 5G), access points, Transmit / Receive Points (TRPs), DUs, RUs, CUs, network mobility elements, core network nodes, network elements, network equipment, RAN nodes, or combinations thereof. In some examples, network nodes 110 can interconnect with each other or with one or more other network nodes 110 in the wireless network 100 using any suitable transport network through various types of fronthaul interfaces, midhaul interfaces, and / or backhaul interfaces (such as direct physical connections, air interfaces, or virtual networks).

[0036] In some examples, network node 110 may provide communication coverage for a specific geographic area. In the 3rd Generation Partnership Project (3GPP), depending on the context of terminology use, the term "cell" may refer to the coverage area of ​​network node 110 and / or the network node subsystem serving that coverage area. Network node 110 may provide communication coverage for macrocells, picocells, femtocells, and / or another type of cell. A macrocell may cover a relatively large geographic area (e.g., with a radius of several kilometers) and may allow unrestricted access by UE 120 with a service subscription. A picocell may cover a relatively small geographic area and may allow unrestricted access by UE 120 with a service subscription. A femtocell may cover a relatively small geographic area (e.g., a home) and may allow restricted access by UE 120 associated with the femtocell (e.g., UE 120 in a Closed Subscriber Group (CSG)). Network node 110 used for macrocells may be referred to as a macro network node. Network node 110 used for picocells may be referred to as a pico network node. The network node 110 used for femtocells can be referred to as a femtocell network node or a home network node. Figure 1 In the example shown, network node 110a can be a macro network node for macro cell 102a, network node 110b can be a pico network node for pico cell 102b, and network node 110c can be a femto network node for femto cell 102c. Network nodes can support one or more (e.g., three) cells. In some examples, the cells may not necessarily be stationary, and the geographical area of ​​the cells may move depending on the location of the mobile network node 110 (e.g., a mobile network node).

[0037] In some aspects, the term "base station" or "network node" may refer to an aggregated 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, "base station" or "network node" may refer to a CU, DU, 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 network node 110). In some aspects, the term "base station" or "network node" may refer to multiple devices configured to perform one or more functions. For example, in some distributed systems, each of multiple different devices (which may be located in the same geographical location or different geographical locations) may be configured to perform at least a portion of a function, or to repeatedly perform at least a portion of that 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 can be instantiated on a single device. In some aspects, the term "base station" or "network node" may refer to one base station function rather than another. In this way, a single device may include more than one base station.

[0038] Wireless network 100 may include one or more relay stations. A relay station is a network node that can receive data transmissions from upstream nodes (e.g., network node 110 or UE 120) and transmit data to downstream nodes (e.g., UE 120 or network node 110). A relay station may be a UE 120 that can relay transmissions for other UE 120s. Figure 1 In the example shown, network node 110d (e.g., a relay network node) can communicate with network node 110a (e.g., a macro network node) and UE 120d to facilitate communication between network node 110a and UE 120d. The network node 110 for relay communication may be referred to as a relay station, relay base station, relay network node, relay node, repeater, etc.

[0039] Wireless network 100 can be a heterogeneous network, comprising 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 effects on interference in wireless network 100. For example, macro network nodes may have high transmit power levels (e.g., 5 watts to 40 watts), while pico network nodes, femto network nodes, and relay network nodes may have lower transmit power levels (e.g., 0.1 watts to 2 watts).

[0040] Network controller 130 may be coupled to or communicate with network node set 110, and may provide coordination and control for these network nodes 110. Network controller 130 may communicate with network nodes 110 via a backhaul or midhaul link. Network nodes 110 may also communicate directly with each other, or indirectly via a wireless or wired backhaul link. In some aspects, network controller 130 may be a CU or core network device, or may include a CU or core network device.

[0041] UE 120 may be distributed throughout the wireless network 100, and each UE 120 may be stationary or mobile. UE 120 may include, for example, access terminals, terminals, mobile stations, and / or subscriber units. UE 120 may be a cellular phone (e.g., a smartphone), 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 smartwatch, smart clothing, smart glasses, a smart wristband, smart jewelry (e.g., a smart ring or 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, industrial manufacturing equipment, a GPS device, a UE function of a network node, and / or any other suitable device configured to communicate via wireless or wired media.

[0042] Some UEs 120 may be considered Machine-Type Communication (MTC) or Evolved or Enhanced Machine-Type Communication (eMTC) UEs. MTC UEs and / or eMTC UEs may include, for example, robots, unmanned aerial vehicles, remote devices, sensors, instruments, monitors, and / or location tags that can communicate with network nodes, another device (e.g., a remote device), or some other entity. Some UEs 120 may be considered Internet of Things (IoT) devices and / or may be implemented as NB-IoT (Narrowband IoT) devices. Some UEs 120 may be considered customer premises equipment. UEs 120 may be housed within a housing containing components such as processor components and / or memory components. In some examples, the processor components and memory components may be coupled together. For example, the processor components (e.g., one or more processors) and memory components (e.g., memory) may be operatively coupled, communicatively coupled, electronically coupled, and / or electrically coupled.

[0043] Generally, any number of wireless networks 100 can be deployed in a given geographical area. Each wireless network 100 can support a specific RAT and can operate on one or more frequencies. A RAT may be referred to as a radio technology, air interface, etc. A frequency may be referred to as a carrier, frequency channel, etc. Each frequency in a given geographical area can support a single RAT to avoid interference between wireless networks using different RATs. In some cases, NR or 5G RAT networks can be deployed.

[0044] In some examples, two or more UEs 120 (e.g., shown as UE 120a and UE 120e) may communicate directly using one or more sidelink channels (e.g., without using network node 110 as an intermediary device 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.

[0045] Devices in Wireless Network 100 can communicate using the electromagnetic spectrum, which can be subdivided into various categories, bands, channels, etc., based on frequency or wavelength. For example, devices in Wireless Network 100 can communicate using one or more operating frequency bands. In 5G NR, two initial operating frequency bands have been designated as frequency ranges FR1 (410MHz to 7.125GHz) and FR2 (24.25GHz to 52.6GHz). It should be understood that although a portion of FR1 is greater than 6GHz, FR1 is generally (interchangeably) referred to as the “sub-6GHz” band in various documents and articles. Similar naming issues sometimes occur with FR2, which is generally (interchangeably) referred to as the “millimeter wave” band in documents and articles, although this is different from the Extremely High Frequency (EHF) band (30GHz to 300GHz) designated as a “millimeter wave” band by the International Telecommunication Union (ITU).

[0046] The frequencies between FR1 and FR2 are generally referred to as intermediate frequency (IF) bands. Recent 5G NR studies have designated the operating bands for these IF bands as the frequency range designation FR3 (7.125 GHz to 24.25 GHz). Bands falling within FR3 can inherit FR1 and / or FR2 characteristics, thus effectively extending the features of FR1 and / or FR2 to IF band frequencies. Furthermore, higher frequency bands are currently being explored to extend 5G NR operation beyond 52.6 GHz. For example, three higher operating frequency bands have been designated as the 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.

[0047] Considering the examples above, unless otherwise specifically stated, it should be understood that when the term "below 6 GHz" is used herein, it can broadly refer to frequencies below 6 GHz, within FR1, or including intermediate frequency bands. Furthermore, unless otherwise specifically stated, it should be understood that when the term "millimeter wave" is used herein, it can broadly refer to frequencies that can include intermediate frequency bands, within FR2, FR4, FR4-a, or FR4-1 and / or FR5, or within the EHF band. Modifications to frequencies included in these operating frequency bands (e.g., FR1, FR2, FR3, FR4, FR4-a, FR4-1, and / or FR5) are contemplated, and the techniques described herein are applicable to those modified frequency ranges.

[0048] In some aspects, the UE (e.g., UE 120) may include a communication manager 140. As described in more detail elsewhere herein, the communication manager 140 may, at least in part, select, based on one or more conditions, a first CPE to reduce the gap between a first and a second time slot in the COT to a size that protects continuous side-link transmissions made by the UE in the first and second time slots, or a second CPE not to reduce the gap to that size. The communication manager 140 may, at least in part, attempt to transmit communication in the second time slot using a selected CPE from the first or second CPE. Additionally or alternatively, the communication manager 140 may perform one or more other operations described herein.

[0049] As indicated above, Figure 1 This is provided as an example. Other examples are available with reference to [the relevant information]. Figure 1 The examples described are different.

[0050] Figure 2This is a diagram illustrating example 200 of communication between network node 110 and UE 120 in a wireless network 100 according to this disclosure. Network node 110 may be equipped with antenna sets 234a to 234t, such as... T One antenna ( T ≥1). UE 120 may be equipped with antenna sets 252a to 252r, such as R One antenna ( R ≥1). Network node 110 of Example 200 includes one or more radio frequency components, such as antenna 234 and modem 232. In some examples, network node 110 may include an interface, communication components, or another component that facilitates communication with UE 120 or another network node. Some network node 110 may not include radio frequency components that facilitate direct communication with UE 120, such as one or more CUs or one or more DUs.

[0051] At network node 110, transmitting processor 220 can receive data from data source 212 intended for use by UE 120 (or UE set 120). Transmitting processor 220 can select one or more modulation and decoding schemes (MCS) for UE 120 based at least in part on one or more channel quality indicators (CQIs) received from UE 120. Network node 110 can process (e.g., encode and modulate) the data for UE 120 based at least in part on the MCS selected for UE 120 and can provide data symbols for UE 120. Transmitting processor 220 can process system information (e.g., 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. Transmitting processor 220 can 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 signal (PSS) or secondary synchronization signal (SSS)). The transmit (TX) multiple-input multiple-output (MIMO) processor 230 can perform spatial processing (e.g., pre-decoding) on ​​data symbols, control symbols, overhead symbols, and / or reference symbols where applicable, and can transmit a set of output symbol streams (e.g., T Each output symbol stream is provided to a corresponding set of modems 232 (e.g., ...). TEach modem 232a to 232t can be used to process a corresponding output symbol stream (e.g., for OFDM) to obtain an output sample stream. For example, each output symbol stream can be provided to a modulator component (MOD) of modem 232. Each modem 232 can use a corresponding modulator component to process the corresponding output symbol stream (e.g., for OFDM) to obtain an output sample stream. Each modem 232 can also use a corresponding modulator component to process the output sample stream (e.g., convert to analog, amplify, filter, and / or up-convert) to obtain a downlink signal. Modems 232a to 232t can be connected via a corresponding set of antennas 234 (e.g., T Each antenna (shown as antennas 234a to 234t) is used to transmit a set of downlink signals (e.g., ...). T (One downlink signal).

[0052] At UE 120, a set of antennas 252 (shown as antennas 252a to 252r) can receive downlink signals from network node 110 and / or other network nodes 110 and can transmit a set of received signals (e.g., R The received signals are provided to a group of modems 254 (e.g., R Each modem 254 (shown as modems 254a to 254r) may receive a signal. For example, each received signal may be provided to a demodulator component (shown as DEMOD) of modem 254. Each modem 254 may use a corresponding demodulator component to condition (e.g., filter, amplify, down-convert, and / or digitize) the received signal to obtain an input sample. Each modem 254 may use a demodulator component to further process the input sample (e.g., for OFDM) to obtain a received symbol. MIMO detector 256 may obtain the received symbols from modem 254, perform MIMO detection on the received symbols where applicable, and provide the detected symbols. Receiver processor 258 may process (e.g., demodulate and decode) the detected symbols, provide the decoded data for UE 120 to data sink 260, and provide the decoded control information and system information to 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 can determine parameters such as the Reference Signal Received Power (RSRP), Received Signal Strength Indicator (RSSI), Reference Signal Received Quality (RSRQ), and / or CQI. In some examples, one or more components of the UE 120 may be included in the housing 284.

[0053] Network controller 130 may include communication unit 294, controller / processor 290, and memory 292. Network controller 130 may include one or more devices, for example, in a core network. Network controller 130 may communicate with network node 110 via communication unit 294.

[0054] One or more antennas (e.g., antennas 234a to 234t and / or antennas 252a to 252r) may include 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., or may 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 (within a single housing or multiple housings), a set of coplanar antenna elements, a set of non-coplanar antenna elements and / or coupled to one or more transmitting and / or receiving components (such as...). Figure 2 One or more antenna elements (one or more components in a )

[0055] On the uplink, at UE 120, the transmit processor 264 can receive and process data from data source 262 and control information from controller / processor 280 (e.g., for reporting including RSRP, RSSI, RSRQ, and / or CQI). The transmit processor 264 can generate reference symbols for one or more reference signals. The symbols from the transmit processor 264 can 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 transmitted to network node 110. In some examples, the modem 254 of UE 120 may include a modulator and demodulator. In some examples, UE 120 includes a transceiver. This transceiver may include any combination of antenna 252, modem 254, MIMO detector 256, receive processor 258, transmit processor 264, and / or TX MIMO processor 266. The transceiver may be used by a processor (e.g., controller / processor 280) and memory 282 to execute this document (e.g., reference). Figures 3 to 13 ( ) any aspect of the methods described in the method.

[0056] At network node 110, uplink signals from UE 120 and / or other UEs may be received by antenna 234, processed by modem 232 (e.g., demodulator component of modem 232 (shown as DEMOD)), detected by MIMO detector 236, and further processed by receiver processor 238 to obtain decoded data and control information transmitted by UE 120. Receiver processor 238 may provide the decoded data to data sink 239 and the decoded control information to controller / processor 240. Network node 110 may include communication unit 244 and may communicate with network controller 130 via communication unit 244. Network node 110 may include scheduler 246 to schedule one or more UEs 120 for downlink and / or uplink communication. In some examples, modem 232 of network node 110 may include modulator and demodulator. In some examples, network node 110 includes 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 this document (e.g., references). Figures 3 to 13 ( ) any aspect of the methods described in the method.

[0057] The controller / processor 240 of network node 110, the controller / processor 280 of UE 120 and / or Figure 2 Any other component may perform one or more technologies associated with selecting a CPE in the COT, as described in more detail elsewhere herein. For example, the controller / processor 240 of network node 110, the controller / processor 280 of UE 120, and / or Figure 2 Any other component that can execute or direct, for example Figure 12 The operation of process 1200 and / or other processes as described herein. Memory 242 and memory 282 may store data and program code 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 storing one or more instructions (e.g., code and / or program code) for wireless communication. For example, the one or more instructions may cause the one or more processors, UE 120 and / or network node 110 to perform or direct, for example, when executed by one or more processors of network node 110 and / or UE 120 (e.g., direct execution, or execution after compilation, transformation and / or interpretation). Figure 12 The process involves 1200 operations. In some examples, the executed instructions may include run instructions, transform instructions, compile instructions, and / or interpret instructions, etc.

[0058] In some aspects, the UE (e.g., UE 120) includes: components for selecting, at least in part, a first CPE to reduce the gap between a first and a second time slot in the COT to a size that protects continuous side-link transmissions performed by the UE in the first and second time slots, or a second CPE not to reduce the gap to that size, based on one or more conditions; and / or components for attempting to transmit communications in the second time slot using the selected CPE from the first or second CPE, based at least in part on one or more conditions. Components for the UE to perform the operations described herein may include, for example, one or more of the following: a communication manager 140, an antenna 252, a modem 254, a MIMO detector 256, a receive processor 258, a transmit processor 264, a TX MIMO processor 266, a controller / processor 280, or a memory 282.

[0059] In some respects, individual processors can be described as performing all functions executed by the one or more processors. In other respects, the one or more processors can jointly perform a set of functions. For example, the processors of a first set (one or more) of the one or more processors can be described as performing a first function executed by the one or more processors, and the processors of a second set (one or more) of the one or more processors can be described as performing a second function executed by the one or more processors. The processors of the first set and the processors of the second set can be the same set of processors or can be different sets of processors. The reference to "one or more processors" should be understood as referring to a combination of processors. Figure 2 Any one or more processors described. The reference to "one or more memories" should be understood to refer to any one or more memories of the corresponding device, such as those in conjunction with... Figure 2 The memory described. For example, a function described as being performed by one or more memories can be performed by the same subset of the one or more memories or by different subsets of the one or more memories.

[0060] Although Figure 2 The boxes in the diagram are illustrated as different components, but the functions described above with respect to these boxes may be implemented in a single hardware, software, or combined component, or in various combinations of components. For example, the functions described with respect to transmit processor 264, receive processor 258, and / or TX MIMO processor 266 may be performed by or under the control of controller / processor 280.

[0061] As indicated above, Figure 2 This is provided as an example. Other examples are available with reference to [the relevant information]. Figure 2 The examples described are different.

[0062] Communication systems (such as 5G NR systems) can be deployed in various ways with a variety of components or parts. In a 5G NR system or network, network nodes, network entities, network mobility elements, RAN nodes, core network nodes, network elements, base stations, or network equipment can be implemented in a converged or decomposed architecture. For example, base stations (such as Node B (NB), evolved NB (eNB), NR base stations, 5G NB, access points (APs), TRPs, or cells, etc.) or one or more units (or one or more components) that perform base station functions can be implemented as converged base stations (also known as standalone base stations or monolithic base stations) or decomposed base stations. A "network entity" or "network node" can 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 combinations thereof).

[0063] Aggregated base stations (e.g., aggregated network nodes) can 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 cell). Decomposed base stations (e.g., decomposed network nodes) can be configured to utilize a protocol stack that is physically or logically distributed across two or more cells (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. DUs may be implemented to communicate with one or more RUs. Each of the CU, DU, and RU can also be implemented as a virtual cell, such as a Virtual Central Unit (VCU), a Virtual Distributed Unit (VDU), or a Virtual Radio Unit (VRU), etc.

[0064] Base station type operation or network design can take into account the aggregation characteristics of base station functionality. For example, decomposed base stations can be utilized in IAB networks, Open Radio Access Networks (O-RAN (such as network configurations initiated by the O-RAN Alliance)), or Virtualized Radio Access Networks (vRAN, also known as Cloud Radio Access Networks (C-RAN)) to facilitate the scaling of communication systems by separating base station functionality into one or more units that can be deployed independently. Decomposed base stations can include functionality implemented across two or more units at various physical locations, as well as functionality virtually implemented for at least one unit, which enables flexibility in network design. Each unit of a decomposed base station can be configured for wired or wireless communication with at least one other unit of the decomposed base station.

[0065] Figure 3 This is a diagram illustrating example 300 of sidelink communication according to this disclosure.

[0066] like Figure 3 As shown, the first UE 305-1 can communicate with the second UE 305-2 (and one or more other UEs 305) via one or more sidelink channels 310. UEs 305-1 and 305-2 can communicate using one or more sidelink channels 310 for P2P communication, D2D communication, V2X communication (which may include V2V communication, V2I communication, and / or V2P communication), and / or mesh networking. In some aspects, UEs 305 (e.g., UEs 305-1 and / or UEs 305-2) can correspond to one or more other UEs (such as UE 120) described elsewhere herein. In some aspects, one or more sidelink channels 310 can use a PC5 interface and / or can operate in a high-frequency band (e.g., the 5.9 GHz band). Additionally or alternatively, UEs 305 can use Global Navigation Satellite System (GNSS) timing to synchronize the timing of transmission time intervals (TTIs) (e.g., frames, subframes, time slots, or symbols).

[0067] like Figure 3 As further shown, one or more sidelink channels 310 may include a Physical Sidelink Control Channel (PSCCH) 315, a Physical Sidelink Shared Channel (PSSCH) 320, and / or a Physical Sidelink Feedback Channel (PSFCH) 325. The PSCCH 315 can be used to convey control information, similar to the Physical Downlink Control Channel (PDCCH) and / or Physical Uplink Control Channel (PUCCH) used for cellular communication with network node 110 via an access link or access channel. The PSSCH 320 can be used to convey data, similar to the Physical Downlink Shared Channel (PDSCH) and / or Physical Uplink Shared Channel (PUSCH) used for cellular communication with network node 110 via an access link or access channel. For example, PSCCH 315 may carry sidelink control information (SCI) 330, which may indicate various control information for sidelink communication, such as one or more resources (e.g., time resources, frequency resources, and / or space resources), wherein transport blocks (TB) 335 may be carried on PSCCH 320. TB 335 may include data. PSCCH 325 may be used to convey sidelink feedback 340, such as hybrid automatic repeat request (HARQ) feedback (e.g., acknowledgment or negative acknowledgment (ACK / NACK) information), transmit power control (TPC), and / or scheduling request (SR).

[0068] Although shown on PSCCH 315, SCI 330 may include multiple communications at different levels, such as Level 1 SCI (SCI-1) and Level 2 SCI (SCI-2) in some respects. SCI-1 can be transmitted on PSCCH 315. SCI-2 can be transmitted on PSSCH 320. SCI-1 may include, for example, indications of one or more resources on PSSCH 320 (e.g., time resources, frequency resources, and / or spatial resources), information for decoding sidelink communications on PSSCH, Quality of Service (QoS) priority values, resource reservation periods, PSSCH DMRS modes, SCI format for SCI-2, β offset for SCI-2, number of PSSCH DMRS ports, and / or MCS. SCI-2 may include information associated with data transmission on PSSCH 320, such as HARQ procedure ID, New Data Indicator (NDI), source identifier, destination identifier, and / or Channel State Information (CSI) report triggering.

[0069] In some aspects, one or more sidelink channels 310 may use resource pools. For example, scheduling assignments (e.g., included in SCI 330) may be transmitted across time using specific resource blocks (RBs) in a subchannel. In some aspects, data transmissions associated with scheduling assignments (e.g., on PSSCH 320) may (e.g., using frequency division multiplexing) occupy adjacent RBs in the same subframe as the scheduling assignment. In some aspects, scheduling assignments and associated data transmissions are not transmitted on adjacent RBs.

[0070] In some aspects, UE 305 may operate using a sidelink transmission mode (e.g., mode 1), where resource selection and / or scheduling is performed by network node 110 (e.g., a base station, CU, or DU). For example, UE 305 may receive permission for sidelink channel access and / or scheduling (e.g., in downlink control information (DCI) or in radio resource control (RRC) messages, such as permission for configuration) from network node 110 (e.g., directly or via one or more network nodes). In some aspects, UE 305 may operate using a transmission mode (e.g., mode 2), where resource selection and / or scheduling is performed by UE 305 (e.g., instead of network node 110). In some aspects, UE 305 may perform resource selection and / or scheduling by sensing channel availability for transmission. For example, UE 305 can measure RSSI parameters (e.g., sidelink-RSSI (S-RSSI) parameters) associated with various sidelink channels, RSRP parameters (e.g., PSSCH-RSRP parameters) associated with various sidelink channels, and / or RSRQ parameters (e.g., PSSCH-RSRQ parameters) associated with various sidelink channels, and can select the channel for transmitting sidelink communication based at least in part on the measurements.

[0071] Alternatively or alternatively, UE 305 may use SCI 330 received in PSCCH 315 to perform resource selection and / or scheduling, which may indicate the occupied resources and / or channel parameters. Alternatively or alternatively, UE 305 may perform resource selection and / or scheduling by determining the Channel Busy Ratio (CBR) associated with various sidelink channels, which may be used for rate control (e.g., by indicating the maximum number of resource blocks that UE 305 can use for a specific set of subframes).

[0072] In a transmission mode where resource selection and / or scheduling is performed by the UE 305, the UE 305 can generate sidelink grants and can transmit the grants in SCI 330. Sidelink grants can indicate one or more parameters (e.g., transmission parameters) to be used for an upcoming sidelink transmission, such as one or more resource blocks (e.g., for TB 335) to be used for an upcoming sidelink transmission on PSSCH 320, one or more subframes to be used for an upcoming sidelink transmission, and / or the MCS to be used for an upcoming sidelink transmission. In some aspects, the UE 305 can generate sidelink grants that indicate one or more parameters for semi-persistent scheduling (SPS), such as the periodicity of sidelink transmissions. Additionally or alternatively, the UE 305 can generate sidelink grants for event-driven scheduling (such as for on-demand sidelink messages).

[0073] As indicated above, Figure 3 This is provided as an example. Other examples are available with reference to [the relevant information]. Figure 3 The examples described are different.

[0074] Figure 4 This is a diagram illustrating example 400 of sidelink communication and access link communication according to this disclosure.

[0075] like Figure 4 As shown, the transmitter (Tx) / receiver (Rx) UE 405 and the Rx / Tx UE 410 can communicate with each other via a side link, as described above. Figure 3 As described herein. As further shown, in some sidelink modes, network node 110 may communicate with Tx / Rx UE 405, such as via a first access link (e.g., directly or via one or more network nodes). Additionally or alternatively, in some sidelink modes, network node 110 may communicate with Rx / Tx UE 410, such as via a first access link (e.g., directly or via one or more network nodes). Tx / Rx UE 405 and / or Rx / Tx UE 410 may communicate with one or more UEs (such as those described elsewhere herein) Figure 1 This corresponds to UE 120. Therefore, a direct link between UEs 120 (e.g., via the PC5 interface) can be referred to as a side link, and a direct link between network 110 and UE 120 (e.g., via the Uu interface) can be referred to as an access link. Side link communication can be sent via the side link, and access link communication can be sent via the access link. Access link communication can be downlink communication (from network node 110 to UE 120) or uplink communication (from UE 120 to network node 110).

[0076] As indicated above, Figure 4 This is provided as an example. Other examples are available with reference to [the relevant information]. Figure 4 The examples described are different.

[0077] Figure 5 This is an illustration of example 500 of selecting sidelink resources according to this disclosure. Example 500 shows UE 502 (e.g., UE 120) which can receive communication from other UEs (such as UE 504, UE 506 and / or UE 508) on a sidelink channel.

[0078] Such as combination Figure 5In this description, UE 504 is a transmitting UE that sends communications to UE 502, which acts as a receiving UE. UE 504 can use reports from UE 502, which can act as a reporting UE that reports available sidelink resources, preferred sidelink resources, non-preferred sidelink resources, or sidelink resource conflicts. Example 500 illustrates availability reporting from UE 502 to UE 504 and communication from UE 504 to UE 502.

[0079] If UE 504 is to send communication to UE 502, UE 504 can sense the sidelink channel within the sensing window to determine which sidelink resources (e.g., subcarriers, subchannels) are available. UE 504 can use a Listen-Before-Talk (LBT) procedure to sense the channel. The LBT procedure can be a Type 1 LBT procedure, in which UE 504 listens to multiple time slots (e.g., 9 milliseconds (ms)) and uses a counter. If the sidelink resource is idle or has signal energy that meets an availability threshold (e.g., RSRP) (e.g., interference or energy measured on the channel is below the maximum dBm or dB RSRP threshold), the sidelink resource can be considered available. The availability threshold can be configured or pre-configured according to transmit and receive priority pairs. Depending on the configuration, UE 504 can measure DMRS on the PSCCH or PSSCH.

[0080] For example, UE 504 may prepare to send communication to UE 502. UE 504 may have already sensed previous sidelink resources and successfully decoded the SCI from UE 506 and UE 508. UE 504 may attempt to reserve sidelink resources and thus check the availability of future sidelink resources reserved by UE 506 and UE 508 by sensing the sidelink channel within the sensing window. UE 504 may measure the RSRP of the signal from UE 508 in sidelink resource 510 and the RSRP of the signal from UE 506 in sidelink resource 512. If the observed RSRP (RSRP projection) meets an RSRP threshold (e.g., below the maximum RSRP), the corresponding sidelink resource can be used for reservation by UE 504. UE 504 may reserve sidelink resources (which may be randomly selected from available resources). For example, UE 504 may select and reserve sidelink resource 514 for transmission. This can be done within a time slot after which UE 506 and UE 508 have already used sidelink resources, and UE 504 may have sensed these sidelink resources earlier. UE 504 can select and reserve sidelink resources only when a threshold level (e.g., 20%, 30%, or 50% availability) is reached. UE 504 can increase or decrease the RSRP threshold as needed to reach the threshold level. UE 504 can select and reserve sidelink resources in the current time slot and up to two (or more) future time slots. Reservation can be aperiodic or periodic (e.g., SCI signal period between 0ms and 1000ms). Periodic resource reservation can be disabled.

[0081] During processing time T proc,0 Then and at another processing time T proc,1 Previously, there could be a resource selection trigger to initiate the selection of sidelink resources, followed by a resource selection window from which sidelink resources can be obtained. The resource selection window can be a time window from which sidelink resources can be selected, and the resource selection window can be extended for the remaining packet delay budget (PDB).

[0082] As indicated above, Figure 5 This is provided as an example. Other examples are available with reference to [the relevant information]. Figure 5 The examples described are different.

[0083] Figure 6 This is an illustration of Example 600 of the COT sharing problem according to this disclosure.

[0084] The UE can operate in an unlicensed sidelink (SL-U). If the first UE (UE1) determines that the channel is idle, UE1 can treat the channel as idle for the maximum duration or for the duration of the COT. If UE1 does not need to use the entire COT for PSSCH transmission or reception, UE1 can share the COT with another UE (such as with a second UE (UE2)). UE1 can indicate the RB and duration of the COT. UE1 can be the COT initiator, performing the LBT procedure and starting the COT. UE1 can send data to UE2 during the COT period in PSSCH communication. UE2 can be the COT responder and can provide PSFCH communication to UE1 in response to PSSCH communication during the COT period. UE2 can be considered the PSFCH sender. UE2 can perform a type 2 LBT procedure, which is a “one-off” channel sensing with a duration (e.g., 16 microseconds (μs)) much shorter than that of a type 1 LBT procedure.

[0085] The expected duration of the COT interruption gap between communications is 25 μs. If UE1 begins transmission within the COT interruption gap, UE1 maintains COT and UE2 cannot transmit. If UE1 does not begin transmission within the COT interruption gap, UE1 does not maintain COT and UE2 can transmit. UE2 may perform Type 2A channel access (16 μs) before transmission.

[0086] Example 600 illustrates a COT with a time slot in which UE1 (the initiator) intends to transmit. UE1 can share the COT with UE2 (the responder) and provides UE2 with an indication of the remaining duration of the COT in the COT-Shared Information (COT-SI). Even with time-domain information for the shared COT provided, it remains unclear how to protect UE1's transmissions. That is, it is unclear in which part of the remaining COT UE2 can transmit. If UE2 can attempt to access the channel with LBT Type 2 and transmit anywhere in the COT (after decoding the COT-SI and before the COT end time marked by the remaining COT duration), there is a chance that UE2 will preempt the channel to prevent it from being used by UE1. As shown in Example 600, UE1 can discard transmissions for both time slots due to a re-evaluation or preemption check performed by UE1 resulting in a reselection. However, UE2 can access the channel and begin a sidelink transmission burst that would prevent UE1 from future re-accessing. The next two time slots were not reserved for UE1 or UE2, and therefore UE2 can continue to transmit its burst, which prevents UE1 from resuming transmission in its own COT (failed Type 2 access by UE1). If UE1 cannot transmit in its own COT, UE1's communication will be degraded and latency will increase.

[0087] As indicated above, Figure 6 This is provided as an example. Other examples are available with reference to [the relevant information]. Figure 6 The examples described are different.

[0088] Figure 7 This is an example 700 illustrating a COT shared offset according to this disclosure.

[0089] In a COT-sharing framework within an unlicensed NR (NR-U) network, UE1 can perform a Type 1 LBT and acquire a COT. UE1 can share the COT and indicate to UE2 the offset and duration of the shared COT-SI. UE2 can choose not to access the shared COT before the offset to protect UE1's ability to access the shared COT. Example 700 illustrates a shared COT 702 for UE1, which has an area before offset 704 (UE1 area) that UE2 cannot access and an area after offset 704 that UE2 can access (UE2 area). UE1 can access (perform a Type 2 LBT) and transmit within the shared COT 702 in both the UE1 and UE2 areas. UE2 can access and transmit only within the shared COT 702 (Type 2 LBT) in the UE2 area. Transmission within the shared COT 702 can mean that the transmission is within the RB set (20MHz LBT channel) acquired by Type 1 channel access (or Type 4 LBT) performed by UE1. In the time domain, transmission occurs between COT-SI and the maximum COT duration. Different durations can be obtained by performing Type 1 channel access associated with a given Channel Access Priority Class (CAPC). Higher priority maps to faster channel access with respect to a smaller random counter and a shorter COT duration.

[0090] As indicated above, Figure 7 This is provided as an example. Other examples are available with reference to [the relevant information]. Figure 7 The examples described are different.

[0091] Figure 8 These are illustrations of examples 800, 810, and 820 illustrating the gaps between sidelink transmissions according to this disclosure.

[0092] In some examples, the UE may send a CPE that includes the start of transmission during the gap between the first and second communications. The UE may send a CPE to begin transmission at a start location prior to the first symbol of the second communication's scheduling. One or more CPE start locations may exist prior to the start location for sidelink synchronization signal block (S-SSB), PSFCH communication, or another physical sidelink channel communication (e.g., PSCCH, PSSCH). The CPE start location can be configured or indicated.

[0093] For the following two options, the CPE can be sent from the CPE starting point before the sidelink transmission: within the symbol exactly before the next automatic gain control (AGC) symbol; within the symbol exactly before the next AGC symbol for the 15 kHz subcarrier spacing (SCS); or within up to two symbols exactly before the next AGC symbol for the 30 kHz or 60 kHz SCS.

[0094] In some examples, UE2 can choose a CPE start location later than UE1's CPE start location. This can help UE1 achieve better channel access success in its own shared COT. For example, the start location of the first CPE can be earlier than the start location of the second CPE. In some aspects, the LBT can be type 2A (16μs), type 2B (25μs), or type 2C (no CPE and at the beginning of the next symbol). The type 2A LBT can be before the AGC symbol.

[0095] Example 800 illustrates an example of COT 802 initiated by UE1 (Type 1 access) and shared with UE2. UE1 may transmit communications (PSSCH or PSCCH) in a first time slot 804. UE1 or UE2 may perform Type 2 access to transmit communications in a second time slot 806. A gap 808 may exist between the first time slot 804 and the second time slot 806. If the gap 808 is larger than the size of the protection for continuous transmission in COT 802 (e.g., 16 μs, 25 μs), UE2 can obtain access and transmit in communications in the second time slot 806, thereby preventing UE1 from transmitting in the second time slot 806. If the gap 808 is the size of the protection for continuous transmission (or not greater than that size), UE1 can transmit communications in the second time slot 806 without being preempted by UE2. That is, UE1 can maintain COT for multiple consecutive time slot transmissions (MCSt).

[0096] Example 810 illustrates an example where UE1 sends CPE 812 in COT 802 to reduce the size of gap 808 to the size that protects continuous transmissions made by UE1. For example, CPE 812 can be the size of one or two symbols. In some examples, CPE 812 can be a default CPE with a configured size and starting position. The default CPE may not reduce gap 808 to the size that protects continuous transmissions.

[0097] In some examples, CPE 812 can be one of several candidate start locations. The start location can be modified at least in part based on the SCS. For example, for a 15 kHz SCS, the set of values ​​for candidate CPE locations could include the value { , , , , , , },in It is the starting position of the next AGC symbol (when the CPE starting position is (When the CPE length is 0) It is the starting position of the first symbol immediately before the next AGC symbol, and It is the starting position of the second symbol immediately preceding the next AGC symbol. For a 30kHz SCS, the set of values ​​for a symbol-length CPE window is { , , For a 30kHz SCS, the set of values ​​for the two symbol-length CPE windows is { , , , , , , For a 60kHz SCS, the set of values ​​for a symbol-length CPE window is { , For a 60kHz SCS, the set of values ​​for the two symbol-length CPE windows is { , , Example 820 illustrates a CPE 822 with a starting position that ensures UE1 transmits a signal that reduces the gap 808 to the size that protects continuous transmission.

[0098] In some examples, UE1 may follow either the first scheme or the second scheme. In the first scheme, UE1 may select a pre-configured default CPE with a default CPE starting location. In the second scheme, UE1 may use a CPE with a starting location randomly selected from multiple candidate CPEs with CPE starting locations. One or more candidate CPEs may be mapped to transmission priorities. In some examples, UE1 may use only the pre-configured default CPE.

[0099] UE1 may have a transmission with a different priority than that made by UE2 in the second time slot 806. UE1's transmission can have a higher priority, the same priority, or a lower priority. In examples 800, 810, and 820, UE1 initiates COT 802. In other examples, UE1 may respond to a COT initiated by UE2. However, different types of CPEs, different priorities, and different COT initiators can lead to confusion about which CPE to use in slot 808. This confusion may cause some higher-priority communications to be preempted or UE1 to prematurely lose maintenance of COT 802. Such problems can increase latency and consume signaling resources.

[0100] As indicated above, Figure 8 This is provided as an example. Other examples are available with reference to [the relevant information]. Figure 8 The examples described are different.

[0101] Figure 9 This is an illustration of example 900, which illustrates the selection of a CPE based on one or more conditions according to this disclosure. Example 900 shows a UE 910 (e.g., UE 120, UE1) and another UE 920 (UE 120, UE2) that can transmit communication on a side link. Example 900 shows UE 910 initiating a COT.

[0102] Based on the various aspects described herein, a UE can choose a first CPE that protects its sidelink transmissions in consecutive time slots or a second CPE that does not protect its sidelink transmissions in consecutive time slots (or does not ensure that continuous sidelink transmissions are protected). The second CPE can be a configured default CPE or one of several candidate CPEs. The UE can select the first or second CPE based at least in part on one or more conditions. Conditions may include whether the UE is a COT initiator or a responding UE. Conditions may include whether the UE is performing FDM with another UE. Conditions may include whether the UE has a higher or lower priority than another UE. Conditions may involve other considerations regarding whether the UE should utilize a particular CPE to protect continuous transmissions. By selecting a CPE based on one or more specified conditions, the UE can reduce the probability that transmissions will be blocked or not transmitted, and increase the probability that the UE can maintain UE-initiated COTs. Selecting a CPE based on one or more specified conditions can reduce the probability that higher-priority transmissions will be preempted by lower-priority transmissions. Therefore, latency is reduced and signaling resources are saved.

[0103] Example 900 illustrates a COT initiator (UE 910) selecting a CPE. As shown by reference numeral 925, as the COT initiating UE, UE 910 can send information regarding the shared COT. This information may include when the shared COT started, the duration of the shared COT, and the offset within the shared COT. The offset may be a point within the shared COT (e.g., the start of a specified time slot) at which UE 920 can access the shared COT. UE 910 can perform a Type 1 access to initiate the COT.

[0104] UE 910 may perform channel access (e.g., Type 1 LBT) to transmit communication in the first time slot. UE 920 may transmit communication based at least in part on the result of the LBT procedure. For example, if the channel is idle, UE 920 may transmit communication. If the channel is not idle, UE 920 may not transmit communication.

[0105] UE 910 may be prepared to transmit communication in a second time slot, which is separated from the first time slot by a gap (between the end of the first time slot and the beginning of the second time slot). As shown by reference numeral 930, UE 910 may select a CPE based on one or more conditions. UE 910 may be able to stop and resume Type 2 access (e.g., LBT procedure) in its own COT. Conditions may include FDM with another UE. For example, if UE 910 is FDMing with UE 920, UE 910 may select a second CPE as the configured default CPE instead of the first CPE, which reduces the gap to no more than 16 μs.

[0106] Another condition may be related to transmission priority. For example, if the priority of the FDM slot of UE 910 is higher than the priority of the corresponding slot of UE 920, then UE 910 may transmit a first CPE between two consecutive slots (the first slot and the second slot) to reduce the gap so that the gap does not exceed 16 μs. Otherwise, if a gap greater than 16 μs is not allowed for UE 910, then UE 910 may select the first CPE (e.g., the default CPE) or discard the remaining transmissions. If UE 920 also expects to transmit on consecutive slots, then UE 910 may check the priority of the slot for each FDM.

[0107] In some respects, the conditions may involve the highest priority across multiple time slots. For example, if the highest priority of the time slot from the first FDM of UE 920 to the end of the set of consecutive time slots of UE 910 is higher than the highest priority from the time slot from the FDM to the end of the set of consecutive time slots of UE 920, then UE 910 may select the first CPE. Otherwise, UE 910 may select the second CPE (e.g., the default CPE). In some respects, UE 910 may always select the first CPE.

[0108] As shown by reference numeral 935 in the attached figure, UE 910 may attempt to transmit using the selected CPE. This may include performing Type 2 access and transmitting communication based at least in part on the result of Type 2 access. Attempting to transmit may include transmitting the CPE at the starting location of the CPE in the time slot before the start of the second time slot for transmitting communication. If a first CPE is selected, UE 910 may protect continuous transmission. If a second CPE is selected, continuous transmission of UE 910 may not be protected.

[0109] In some respects, in response to a UE, UE 910 may be prepared to transmit communications in a shared COT. As shown by reference numeral 940, UE 910 may select a CPE based on one or more conditions. For example, if UE 910 is performing FDM with UE 920, UE 910 may always use the second CPE (e.g., the default CPE). In some examples, if UE 920 has higher priority traffic, UE 910 may select the second CPE (e.g., the default CPE). Priority may be based on the FDM time slot or the highest priority from the FDM time slot to the end of the set of consecutive time slots for UE 910. Otherwise, UE 910 may always select the second CPE, which may be one of a set of one or more candidate CPEs available for PSCCH / PSSCH transmission within the COT. In some respects, UE 910 may always select the first CPE.

[0110] In some respects, UE 910 may receive (from the COT initiator) an indication of whether UE 910 may select a first CPE. UE 910 may receive a single bit indication. If the bit is one, UE 910 may select the first CPE such that the gap between any two consecutive transmissions does not exceed 16 μs. Otherwise, UE 910 may always select the second CPE (e.g., the default CPE).

[0111] As shown by reference numeral 945 in the attached figure, UE 910 may attempt to transmit using the selected CPE. This may include performing Type 2 access and transmitting communication based at least in part on the result of Type 2 access. Attempting to transmit may include transmitting the CPE at the starting location of the CPE in the time slot before the start of the second time slot for transmitting communication.

[0112] In some aspects, the conditions may involve the UE's receive-to-transmit (Rx-Tx) handover capability. In a first scenario, CPE selection may always take into account the UE's Rx-Tx handover capability. In a second scenario, CPE selection may not take into account the UE's Rx-Tx handover capability. In some aspects, if UE 910 is expected to select a second CPE from a set of one or more candidate CPEs available for PSCCH / PSSCH transmission within the COT, then UE 910 may select a CPE that satisfies the minimum required Rx-Tx handover capability. In some aspects, if UE 910 is expected to select a second CPE, then the second CPE may be a default CPE that does not satisfy the minimum required Rx-Tx handover capability. UE 910 may select a first CPE. UE 910 may determine whether to select a second CPE or discard the corresponding time slot transmission based at least in part on the priority of UE 910 and the priority of UE 920. For example, if UE 910 has a higher priority, then UE 910 may always select the first CPE. Otherwise, the UE may discard the transmission in the corresponding time slot. Attempting to transmit based on one or more conditions may include discarding the transmission. Priority may be based on the highest priority of an FDM time slot or a consecutive set of time slots.

[0113] Although Example 900 illustrates UE 910 communicating with UE 920, in some scenarios, UE 910 may not communicate with UE 920. In some respects, the operations described in Example 900 can be performed by UE 920 outside of a COT initiated by UE 910.

[0114] As indicated above, Figure 9 This is provided as an example. Other examples are available with reference to [the relevant information]. Figure 9 The examples described are different.

[0115] Figure 10 These are illustrations of examples 1000 and 1020 illustrating priority-based selection of a CPE according to this disclosure. Example 1000 shows a set of consecutive time slots 1002, 1004, 1006, and 1008 for transmissions performed by UE 910 and / or UE 920. UE 910 may select either a first CPE shown by CPEs 1012 and 1014 or a second CPE shown by CPE 1010.

[0116] Example 1000 illustrates CPE selection based on priority. In some respects, the priority (p=3) of the first FDM slot (slot 1004) of UE 910 has a lower priority value than the priority (p=2) of the FDM slot of UE 920. Therefore, UE 910 can select the second CPE (CPE 1010), which can be the default CPE. If the priority (p=1) of slot 1006 of UE 910 is higher than the priority (p=3) of slot 1006 of UE 920, then UE 910 can select the first CPE. The lower the priority value, the higher the priority.

[0117] Example 1020 also illustrates the selection of a CPE based on priority on a set of consecutive time slots. In some respects, the highest priority of the consecutive time slot set of UE 910 (p=1) is higher than the highest priority of the consecutive time slot set of UE 920 (p=2). Therefore, UE 910 can select the first CPE (1022). CPEs 1024 and 1026 are also first CPEs.

[0118] As indicated above, Figure 10 This is provided as an example. Other examples are available with reference to [the relevant information]. Figure 10 The examples described are different.

[0119] Figure 11 These are illustrations of examples 1100 and 1120 illustrating priority-based selection of a CPE according to this disclosure. Example 1100 shows a set of consecutive time slots 1002, 1004, 1006, and 1008 for transmissions performed by UE 910 and / or UE 920. If UE 920 has a lower priority (p=3 is a lower priority than p=2), then UE 920 can select a second CPE (1110). UE 920 can select a second CPE (CPE 1112) for time slot 1006 and a candidate CPE 1112 for time slot 1008.

[0120] Example 1100 illustrates CPE selection based on priority. In some respects, the priority (p=3) of the first FDM slot (slot 1004) of UE 910 has a lower priority value than the priority (p=2) of the FDM slot of UE 920. Therefore, UE 910 can select a second CPE (CPE 1010), which can be the default CPE. UE 920 can select a second CPE (CPE 1122), which is a CPE from the set of candidate CPEs or from the first CPE.

[0121] Example 1120 also illustrates the selection of a CPE based on priority on a set of consecutive time slots. UE 910 may indicate in the COT-SI which CPE UE 920 should use. For example, UE 910 may indicate the selection of a second CPE shown by CPE 1122 and CPE 1124.

[0122] As indicated above, Figure 11 This is provided as an example. Other examples are available with reference to [the relevant information]. Figure 11 The examples described are different.

[0123] Figure 12 This is a diagram illustrating an example process 1200 performed, for example, at a UE or a device of a UE, according to this disclosure. Example process 1200 is an example in which a device or UE (e.g., UE 120, UE 910, UE 920) performs an operation associated with CPE selection.

[0124] like Figure 12 As shown, in some aspects, process 1200 may include selecting, at least in part, a first CPE that reduces the gap between the first and second timeslots in the COT to a size that protects the continuous sidelink transmissions performed by the UE in the first and second timeslots, or a second CPE that does not reduce the gap to that size (box 1210), based on one or more conditions. For example, the UE (e.g., using...) Figure 13 The communication manager 1306 described herein can, at least in part, select, based on one or more conditions, a first CPE to reduce the gap between the first and second timeslots in the COT to the size that protects the continuous sidelink transmissions made by the UE in the first and second timeslots, or a second CPE not to reduce the gap to that size, as described above.

[0125] like Figure 12 As further shown, in some aspects, process 1200 may include attempting to transmit communication in a second time slot using a selected CPE from the first or second CPE, based at least in part on one or more conditions (block 1220). For example, the UE (e.g., using...) Figure 13 The communication manager 1306 described herein may attempt to send communication in a second time slot using a selected CPE from the first or second CPE, based at least in part on one or more conditions, as described above.

[0126] Process 1200 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.

[0127] In the first aspect, the size is 16 microseconds or less.

[0128] In the second aspect, either alone or in combination with the first aspect, attempts to send communication include attempting to send communication after an offset indicated by COT system information.

[0129] In the third aspect, the UE initiates COT alone or in combination with one or more of the first and second aspects.

[0130] In the fourth aspect, selecting a first CPE or a second CPE, either alone or in combination with one or more of the first to third aspects, includes selecting a second CPE at least in part based on FDM between the UE and another UE, and the second CPE is the default CPE.

[0131] In the fifth aspect, the selection of a first CPE or a second CPE, either alone or in combination with one or more of the first to fourth aspects, includes selecting the first CPE based at least in part on the UE performing FDM with another UE and at least in part on the UE's priority in the second time slot being greater than or equal to the other UE's priority in the second time slot.

[0132] In the sixth aspect, the selection of the first CPE or the second CPE, either alone or in combination with one or more of the first to fifth aspects, includes selecting the second CPE based at least in part on the UE performing FDM with another UE and at least in part on the UE having a lower priority in the second time slot than the other UE having a lower priority in the second time slot.

[0133] In the seventh aspect, attempting to send communication, either alone or in combination with one or more of the first to sixth aspects, is based at least in part on one or more conditions, including at least in part on discarding communication based on a gap size that does not allow the UE to attempt to send.

[0134] In the eighth aspect, either alone or in combination with one or more of the first to seventh aspects, the selection of the first CPE or the second CPE includes selecting the first CPE based at least in part on the UE performing FDM with another UE and at least in part on the priority of the highest priority slot of the UE in the consecutive slot set being greater than or equal to the priority of the highest priority slot of the UE in another consecutive slot set.

[0135] In the ninth aspect, the selection of a first CPE or a second CPE, either alone or in combination with one or more of the first to eighth aspects, includes selecting the second CPE based at least in part on the UE performing FDM with another UE and at least in part on the priority of the highest priority slot of the UE in the consecutive slot set being lower than the priority of the highest priority slot of the UE in another consecutive slot set.

[0136] In the tenth aspect, the selection of a first CPE or a second CPE, either alone or in combination with one or more of the first to ninth aspects, includes selecting the first CPE based at least in part on the UE performing FDM with another UE and at least in part on the UE's priority in the second time slot satisfying a priority threshold.

[0137] In the eleventh aspect, selecting the first CPE or the second CPE, either alone or in combination with one or more of the first to tenth aspects, includes selecting the second CPE based at least in part on the UE performing FDM with another UE and at least in part on the UE's priority in the second time slot satisfying a priority threshold.

[0138] In the twelfth aspect, the selection of a first CPE or a second CPE, either alone or in combination with one or more of the first to eleventh aspects, includes selecting the first CPE based at least in part on the UE performing FDM with another UE and at least in part on the priority of the highest priority slot of the UE in the consecutive slot set satisfying a priority threshold.

[0139] In the thirteenth aspect, either alone or in combination with one or more of the first to twelfth aspects, selecting the first CPE or the second CPE includes selecting the second CPE based at least in part on the UE performing FDM with another UE and at least in part on the priority of the highest priority slot of the UE in the consecutive slot set satisfying a priority threshold.

[0140] In the fourteenth aspect, either alone or in combination with one or more of the first to thirteenth aspects, the UE is a responsive UE of the COT.

[0141] In the fifteenth aspect, selecting a first CPE or a second CPE, either alone or in combination with one or more of the first to fourteenth aspects, includes selecting a second CPE at least in part based on FDM between the UE and another UE, and wherein the second CPE is the default CPE.

[0142] In the sixteenth aspect, the selection of the first CPE or the second CPE, either alone or in combination with one or more of the first to fifteenth aspects, includes selecting the second CPE based at least in part on the UE performing FDM with another UE and at least in part on the UE's priority in the second time slot being lower than or equal to the other UE's priority in the second time slot.

[0143] In the seventeenth aspect, the selection of a first CPE or a second CPE, either alone or in combination with one or more of the first to sixteenth aspects, includes selecting the first CPE based at least in part on the UE performing FDM with another UE and at least in part on the UE having a higher priority in the second time slot than the other UE having a higher priority in the second time slot.

[0144] In the eighteenth aspect, either alone or in combination with one or more of the first to seventeenth aspects, selecting the first CPE or the second CPE includes selecting the second CPE based at least in part on the UE performing FDM with another UE and at least in part on the priority of the highest priority time slot of the UE in the consecutive time slot set being lower than or equal to the priority of the highest priority time slot of the UE in another consecutive time slot set.

[0145] In the nineteenth aspect, the selection of a first CPE or a second CPE, either alone or in combination with one or more of the first to eighteenth aspects, includes selecting the first CPE based at least in part on the UE performing FDM with another UE and at least in part on the priority of the highest priority time slot of the UE in the consecutive time slot set being greater than the priority of the highest priority time slot of the UE in another consecutive time slot set.

[0146] In the twentieth aspect, selecting a first CPE or a second CPE, either alone or in combination with one or more of the first to nineteenth aspects, includes selecting a second CPE, and the second CPE is a candidate CPE from one or more candidate CPEs.

[0147] In the twenty-first aspect, selecting a first CPE or a second CPE, either alone or in combination with one or more of the first to twentieth aspects, includes selecting a first CPE.

[0148] In the twenty-second aspect, either alone or in combination with one or more of the first to twenty-first aspects, process 1200 includes sending an indication that the UE can select to reduce the gap between consecutive time slots in the COT to that size by a CPE.

[0149] In the twentieth aspect, the selection of the first CPE or the second CPE, either alone or in combination with one or more of the first to twenty-second aspects, includes selecting the second CPE based at least in part on the UE performing FDM with another UE and at least in part on the UE's priority in the second time slot satisfying a priority threshold.

[0150] In the twenty-fourth aspect, the selection of a first CPE or a second CPE, either alone or in combination with one or more of the first to twenty-third aspects, includes selecting the first CPE based at least in part on the UE performing FDM with another UE and at least in part on the UE's priority in the second time slot satisfying a priority threshold.

[0151] In the twenty-fifth aspect, either alone or in combination with one or more of the first to twenty-fourth aspects, selecting the first CPE or the second CPE includes selecting the second CPE based at least in part on the UE performing FDM with another UE and at least in part on the priority of the highest priority slot of the UE in the continuous slot set satisfying a priority threshold.

[0152] In the twenty-sixth aspect, either alone or in combination with one or more of the first to twenty-fifth aspects, selecting the first CPE or the second CPE includes selecting the first CPE based at least in part on the UE performing FDM with another UE and at least in part on the priority of the highest priority time slot of the UE in the continuous time slot set satisfying a priority threshold.

[0153] In the twenty-seventh aspect, selecting a first CPE or a second CPE, either alone or in combination with one or more of the first to twenty-sixth aspects, includes selecting a first CPE based at least in part on the UE's handover capability not meeting a handover capability threshold, or selecting a second CPE based at least in part on the UE's handover capability meeting a handover capability threshold.

[0154] In the twenty-eighth aspect, either alone or in combination with one or more of the first to twenty-seventh aspects, the selection of the first CPE or the second CPE includes selecting the first CPE at least in part based on the fact that the default CPE configured for the UE does not meet the handover capability threshold.

[0155] although Figure 12 An example box for process 1200 is shown, but in some respects, it differs from... Figure 12 Compared to the boxes depicted, process 1200 may include additional boxes, fewer boxes, different boxes, or boxes arranged in a different manner. Additionally or alternatively, two or more boxes in process 1200 may be executed in parallel.

[0156] Figure 13 This is a diagram of an example device 1300 for wireless communication according to the present disclosure. Device 1300 may be a UE, or a UE may include device 1300. In some aspects, device 1300 includes a receiving component 1302, a transmitting component 1304, and / or a communication manager 1306 that can communicate with each other (e.g., via one or more buses and / or one or more other components). In some aspects, communication manager 1306 is combined with... Figure 1 The described communication manager 140. As shown, device 1300 can communicate with another device 1308 (such as a UE or a network node (such as a CU, DU, RU or base station)) using receiving component 1302 and transmitting component 1304.

[0157] In some respects, device 1300 can be configured to perform the functions described herein. Figures 1 to 11 One or more operations described herein. Additionally or alternatively, the apparatus 1300 may be configured to perform one or more processes described herein, such as Figure 12 Process 1200. In some aspects, apparatus 1300 and / or Figure 13 One or more components shown may include combinations Figure 2 One or more components of the described UE. Additionally or alternatively, Figure 13 One or more components shown can be combined Figure 2 Implemented within one or more of the described components. Additionally or alternatively, one or more of the components in the group may be implemented at least partially as software stored in one or more memories. For example, a component (or a portion thereof) may be implemented as instructions or code stored in a non-transitory computer-readable medium and executable by one or more controllers or one or more processors to perform the function or operation of the component.

[0158] Receiver 1302 may receive communications from device 1308, such as reference signals, control information, data communications, or combinations thereof. Receiver 1302 may provide the received communications to one or more other components of device 1300. In some aspects, receiver 1302 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 device 1300. In some aspects, receiver 1302 may include combinations of... Figure 2 The described UE includes one or more antennas, one or more modems, one or more demodulators, one or more MIMO detectors, one or more receiver processors, one or more controllers / processors, one or more memories, or combinations thereof.

[0159] Transmitting component 1304 may transmit communications, such as reference signals, control information, data communications, or combinations thereof, to device 1308. In some aspects, one or more other components of device 1300 may generate communications and provide the generated communications to transmitting component 1304 for transmission to device 1308. In some aspects, transmitting component 1304 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 device 1308. In some aspects, transmitting component 1304 may include combinations of... Figure 2The described UE may include one or more antennas, one or more modems, one or more modulators, one or more transmit MIMO processors, one or more transmit processors, one or more controllers / processors, one or more memories, or combinations thereof. In some aspects, the transmit component 1304 may co-located with the receive component 1302 in one or more transceivers.

[0160] The communication manager 1306 may support the operation of the receiving component 1302 and / or the transmitting component 1304. For example, the communication manager 1306 may receive information associated with configuring the reception of communications by the receiving component 1302 and / or the transmission of communications by the transmitting component 1304. Additionally or alternatively, the communication manager 1306 may generate control information and / or provide control information to the receiving component 1302 and / or the transmitting component 1304 to control the reception and / or transmission of communications.

[0161] The communication manager 1306 may, at least in part, select, based on one or more conditions, a first CPE to reduce the gap between the first and second timeslots in the COT to a size that protects continuous sidelink transmissions performed by the UE in the first and second timeslots, or a second CPE not to reduce the gap to that size. The communication manager 1306 may, at least in part, attempt to transmit communication in the second timeslot using a selected CPE from the first or second CPE.

[0162] The transmitting component 1304 can transmit an indication that the UE can select to reduce the gap between consecutive time slots in the COT to that size of the CPE.

[0163] Figure 13 The number and arrangement of components shown are provided as an example. In reality, with... Figure 13 Compared to the components shown, there may be additional components, fewer components, different components, or components arranged in a different manner. Furthermore, Figure 13 The two or more components shown can be implemented within a single component, or Figure 13 The single component shown can be implemented as multiple distributed components. Additionally or alternatively, Figure 13 The component collection (one or more components) shown can be executed as described by Figure 13 The other set of components shown performs one or more functions.

[0164] The following provides an overview of some aspects of this disclosure: Aspect 1: A method for wireless communication performed by a user equipment (UE), the method comprising: selecting a first cyclic prefix spread (CPE) or a second CPE based at least in part on one or more conditions, the first cyclic prefix spread (CPE) reducing the gap between a first time slot and a second time slot in a channel occupied time (COT) to a size that protects continuous side-link transmissions performed by the UE in the first time slot and the second time slot, the second CPE not reducing the gap to the size; and attempting to transmit communication in the second time slot using the selected CPE of the first CPE or the second CPE based at least in part on the one or more conditions.

[0165] Aspect 2: The method according to aspect 1, wherein the size is 16 microseconds or less.

[0166] Aspect 3: The method according to any one of Aspects 1 to 2, wherein attempting to send the communication includes attempting to send the communication after an offset indicated by COT system information.

[0167] Aspect 4: The method according to any one of Aspects 1 to 3, wherein the UE initiates the COT.

[0168] Aspect 5: According to the method of aspect 4, selecting the first CPE or the second CPE includes selecting the second CPE at least in part based on frequency division multiplexing of the UE with another UE, and wherein the second CPE is the default CPE.

[0169] Aspect 6: According to the method of aspect 4, selecting the first CPE or the second CPE includes selecting the first CPE based at least in part on the UE performing frequency division multiplexing with another UE and at least in part on the priority of the UE in the second time slot being greater than or equal to the priority of the other UE in the second time slot.

[0170] Aspect 7: According to the method of aspect 4, selecting the first CPE or the second CPE includes selecting the second CPE based at least in part on the UE performing frequency division multiplexing with another UE and at least in part on the UE having a lower priority in the second time slot than the other UE having a lower priority in the second time slot.

[0171] Aspect 8: According to the method of aspect 7, wherein attempting to send the communication based at least in part on the one or more conditions includes discarding the communication based at least in part on the gap being a size that does not allow the UE to attempt to send.

[0172] Aspect 9: According to the method of aspect 4, selecting the first CPE or the second CPE includes selecting the first CPE based at least in part on the UE being frequency-division multiplexed with another UE and at least in part on the priority of the highest priority time slot of the UE in the continuous time slot set being greater than or equal to the priority of the highest priority time slot of the other UE in the continuous time slot set.

[0173] Aspect 10: According to the method of aspect 4, selecting the first CPE or the second CPE includes selecting the second CPE based at least in part on the UE performing frequency division multiplexing with another UE and at least in part on the priority of the highest priority time slot of the UE in the continuous time slot set being lower than the priority of the highest priority time slot of the other UE in the continuous time slot set.

[0174] Aspect 11: According to the method of aspect 4, selecting the first CPE or the second CPE includes selecting the first CPE based at least in part on the UE performing frequency division multiplexing with another UE and at least in part on the UE's priority in the second time slot satisfying a priority threshold.

[0175] Aspect 12: According to the method of aspect 4, selecting the first CPE or the second CPE includes selecting the second CPE based at least in part on the UE performing frequency division multiplexing with another UE and at least in part on the UE's priority in the second time slot satisfying a priority threshold.

[0176] Aspect 13: According to the method of aspect 4, selecting the first CPE or the second CPE includes selecting the first CPE based at least in part on the UE performing frequency division multiplexing with another UE and at least in part on the priority of the highest priority time slot of the UE in the continuous time slot set satisfying a priority threshold.

[0177] Aspect 14: According to the method of aspect 4, selecting the first CPE or the second CPE includes selecting the second CPE based at least in part on the frequency division multiplexing of the UE with another UE and at least in part on the priority of the highest priority time slot of the UE in the set of consecutive time slots satisfying a priority threshold.

[0178] Aspect 15: The method according to any one of Aspects 1 to 14, wherein the UE is a responsive UE of the COT.

[0179] Aspect 16: The method according to aspect 15, wherein selecting the first CPE or the second CPE includes selecting the second CPE at least in part based on frequency division multiplexing of the UE with another UE, and wherein the second CPE is the default CPE.

[0180] Aspect 17: The method according to aspect 15, wherein selecting the first CPE or the second CPE includes selecting the second CPE based at least in part on the UE being frequency-division multiplexed with another UE and at least in part on the UE having a priority in the second time slot that is lower than or equal to the priority of the other UE in the second time slot.

[0181] Aspect 18: According to the method of aspect 15, selecting the first CPE or the second CPE includes selecting the first CPE based at least in part on the UE performing frequency division multiplexing with another UE and at least in part on the UE having a higher priority in the second time slot than the other UE having a higher priority in the second time slot.

[0182] Aspect 19: According to the method of aspect 15, selecting the first CPE or the second CPE includes selecting the second CPE based at least in part on the UE being frequency-division multiplexed with another UE and at least in part on the priority of the highest priority time slot of the UE in the continuous time slot set being lower than or equal to the priority of the highest priority time slot of the other UE in the continuous time slot set.

[0183] Aspect 20: According to the method of aspect 15, selecting the first CPE or the second CPE includes selecting the first CPE based at least in part on the UE being frequency-division multiplexed with another UE and at least in part on the priority of the highest priority time slot of the UE in the continuous time slot set being greater than the priority of the highest priority time slot of the other UE in the continuous time slot set.

[0184] Aspect 21: The method according to aspect 15, wherein selecting the first CPE or the second CPE includes selecting the second CPE, and wherein the second CPE is a candidate CPE from one or more candidate CPEs.

[0185] Aspect 22: The method according to aspect 15, wherein selecting the first CPE or the second CPE includes selecting the first CPE.

[0186] Aspect 23: The method according to aspect 15, the method further comprising: transmitting an indication that the UE can select to reduce the gap between consecutive time slots in the COT to the size of the CPE.

[0187] Aspect 24: According to the method of aspect 15, selecting the first CPE or the second CPE includes selecting the second CPE based at least in part on the UE performing frequency division multiplexing with another UE and at least in part on the UE's priority in the second time slot satisfying a priority threshold.

[0188] Aspect 25: According to the method of aspect 15, selecting the first CPE or the second CPE includes selecting the first CPE based at least in part on the UE performing frequency division multiplexing with another UE and at least in part on the UE's priority in the second time slot satisfying a priority threshold.

[0189] Aspect 26: According to the method of aspect 15, selecting the first CPE or the second CPE includes selecting the second CPE based at least in part on the frequency division multiplexing of the UE with another UE and at least in part on the priority of the highest priority time slot of the UE in the set of consecutive time slots satisfying a priority threshold.

[0190] Aspect 27: The method according to aspect 15, wherein selecting the first CPE or the second CPE includes selecting the first CPE based at least in part on the UE performing frequency division multiplexing with another UE and at least in part on the priority of the highest priority time slot of the UE in the set of consecutive time slots satisfying a priority threshold.

[0191] Aspect 28: The method according to any one of Aspects 1 to 27, wherein selecting the first CPE or the second CPE comprises: selecting the first CPE at least in part based on the handover capability of the UE not meeting the handover capability threshold, or selecting the second CPE at least in part based on the handover capability of the UE meeting the handover capability threshold.

[0192] Aspect 29: The method according to any one of Aspects 1 to 28, wherein selecting the first CPE or the second CPE includes selecting the first CPE at least in part based on the fact that the default CPE configured for the UE does not meet the handover capability threshold.

[0193] Aspect 30: An apparatus for wireless communication at a device, the apparatus comprising: one or more processors; one or more memories coupled to the one or more processors; and instructions stored in the one or more memories and executable by the one or more processors to cause the apparatus to perform the method according to one or more of aspects 1 to 29.

[0194] Aspect 31: An apparatus for wireless communication at a device, the apparatus comprising: one or more memories; and one or more processors coupled to the one or more memories, the one or more processors being configured to cause the device to perform the method according to one or more of aspects 1 to 29.

[0195] Aspect 32: An apparatus for wireless communication, the apparatus comprising at least one component for performing the method according to one or more of aspects 1 to 29.

[0196] Aspect 33: A non-transitory computer-readable medium storing code for wireless communication, the code including instructions executable by one or more processors to perform the method according to one or more of aspects 1 to 29.

[0197] Aspect 34: A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions comprising one or more instructions that, when executed by one or more processors of a device, cause the device to perform the method according to one or more of aspects 1 to 29.

[0198] Aspect 35: A device for wireless communication, the device comprising: a processing system including one or more processors and one or more memories coupled to the one or more processors, the processing system being configured to cause the device to perform the method according to one or more of aspects 1 to 29.

[0199] Aspect 36: An apparatus for wireless communication at a device, the apparatus comprising one or more memories and one or more processors coupled to the one or more memories, the one or more processors being individually or collectively configured to cause the device to perform the method according to one or more of aspects 1 to 29.

[0200] While the foregoing disclosure provides examples and descriptions, it is not intended to be exhaustive or to limit the aspects to the precise form disclosed. Modifications and variations may be made based on the foregoing disclosure, or from various forms of practice.

[0201] As used herein, the term "component" is intended to be interpreted broadly as hardware and / or a combination of hardware and software. Whether referred to as software, firmware, middleware, microcode, hardware description language, or other names, "software" should be interpreted broadly as meaning instructions, instruction sets, code, code segments, program code, programs, subroutines, software modules, applications, software applications, software packages, routines, subroutines, objects, executable files, threads of execution, procedures, and / or functions, etc. As used herein, a "processor" is implemented in hardware and / or a combination of hardware and software. It will be apparent to those skilled in the art that the systems and / or methods described herein can be implemented in various forms of hardware and / or combinations of hardware and software. The actual dedicated control hardware or software code used to implement these systems and / or methods is not limiting in any way. Therefore, no specific software code is referenced in this document to describe the operation and behavior of the systems and / or methods, as those skilled in the art will understand that the software and hardware can be designed, at least in part, based on the descriptions herein, to implement the systems and / or methods.

[0202] Hardware and data processing means for implementing the various exemplary logic, logic blocks, modules, and circuits described herein can be implemented or executed using general-purpose single-chip or multi-chip processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs) or other programmable logic devices, discrete gate or transistor logic components, discrete hardware components, or any combination thereof designed to perform the functions described herein. A general-purpose processor can be a microprocessor, or any conventional processor, controller, microcontroller, or state machine. A processor can also be implemented as a combination of computing devices, such as a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors combined with a DSP core, or any other such configuration. In some aspects, specific processes and methods can be performed by circuitry dedicated to a given function.

[0203] As used in this article, depending on the context, "meeting the threshold" can mean a value greater than the threshold, greater than or equal to the threshold, less than the threshold, less than or equal to the threshold, equal to the threshold, not equal to the threshold, etc.

[0204] 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 various aspects. Many of these features may be combined in ways not specifically set forth in the claims and / or not disclosed in the specification. The disclosure of various aspects includes each dependent claim in combination with each other claim in the set of claims. As used herein, the phrase referring to “at least one of” the list of items means 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 having 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).

[0205] No element, action, or instruction used herein should be construed as essential or necessary unless explicitly stated otherwise. Furthermore, as used herein, the articles “a” and “an” are intended to include one or more items and are used interchangeably with “one or more.” Furthermore, as used herein, the article “described” is intended to include one or more items mentioned in connection with the article “described” and is used interchangeably with “one or more.” Furthermore, as used herein, the terms “group” and “cluster” are intended to include one or more items and are used interchangeably with “one or more.” If only one item is desired, the phrase “only one” or similar terminology will be used. Furthermore, as used herein, the terms “have,” “possess,” “have,” etc., are intended to be open-ended terms that do not limit the elements they modify (e.g., an element “having” A may also have B). Furthermore, the phrase “based on” is intended to mean “at least partially based on” unless otherwise explicitly stated. Furthermore, as used herein, the term “or” is intended to be inclusive when used in a series and is interchangeable with “and / or” unless otherwise explicitly stated (e.g., in the case of its use in conjunction with “any” or “only one”).

Claims

1. A user equipment (UE) for wireless communication, the user equipment (UE) comprising: One or more memory units; and One or more processors, said one or more processors being coupled to said one or more memories and configured to cause the UE to: The first cyclic prefix extension (CPE) or the second CPE is selected at least in part based on one or more conditions, wherein the first cyclic prefix extension (CPE) reduces the gap between the first and second time slots in the channel occupied time (COT) to the size that protects the continuous sidelink transmissions performed by the UE in the first and second time slots, and the second CPE does not reduce the gap to the size; as well as At least in part based on one or more of the conditions, an attempt is made to send communication in the second time slot using a selected CPE from the first CPE or the second CPE.

2. The UE according to claim 1, wherein the size is 16 microseconds or less.

3. The UE of claim 1, wherein, in order to attempt to transmit the communication, the one or more processors are configured to cause the UE to attempt to transmit the communication after an offset indicated by COT system information.

4. The UE according to claim 1, wherein the UE initiates the COT.

5. The UE of claim 4, wherein, in order to select the first CPE or the second CPE, the one or more processors are configured to cause the UE to select the second CPE at least in part based on frequency division multiplexing of the UE with another UE, and wherein the second CPE is the default CPE.

6. The UE of claim 4, wherein, in order to select the first CPE or the second CPE, the one or more processors are configured to cause the UE to select the first CPE at least in part based on the fact that the UE is frequency-division multiplexed with another UE and at least in part based on the fact that the priority of the UE in the second time slot is greater than or equal to the priority of the other UE in the second time slot.

7. The UE of claim 4, wherein, in order to select the first CPE or the second CPE, the one or more processors are configured to cause the UE to select the second CPE at least in part based on the fact that the UE is frequency-division multiplexed with another UE and at least in part based on the fact that the priority of the UE in the second time slot is lower than the priority of the other UE in the second time slot.

8. The UE of claim 7, wherein, in order to attempt to transmit the communication at least in part based on the one or more conditions, the one or more processors are configured to cause the UE to discard the communication at least in part based on the gap being a size that disallows the UE from attempting to transmit.

9. The UE of claim 4, wherein, in order to select the first CPE or the second CPE, the one or more processors are configured to cause the UE to select the first CPE based at least in part on the fact that the UE is frequency-division multiplexed with another UE and at least in part on the fact that the priority of the highest priority time slot of the UE in the set of consecutive time slots is greater than or equal to the priority of the highest priority time slot of the other UE in the set of consecutive time slots.

10. The UE of claim 4, wherein, in order to select the first CPE or the second CPE, the one or more processors are configured to cause the UE to select the second CPE at least in part based on the fact that the UE is frequency-division multiplexed with another UE and at least in part based on the fact that the highest priority time slot of the UE in the set of consecutive time slots has a lower priority than the highest priority time slot of the other UE in the set of consecutive time slots.

11. The UE of claim 4, wherein, in order to select the first CPE or the second CPE, the one or more processors are configured to cause the UE to select the first CPE at least in part based on the UE being frequency-division multiplexed with another UE and at least in part based on the UE's priority in the second time slot satisfying a priority threshold.

12. The UE of claim 4, wherein, in order to select the first CPE or the second CPE, the one or more processors are configured to cause the UE to select the second CPE at least in part based on the UE being frequency-division multiplexed with another UE and at least in part based on the UE's priority in the second time slot satisfying a priority threshold.

13. The UE of claim 4, wherein, in order to select the first CPE or the second CPE, the one or more processors are configured to cause the UE to select the first CPE at least in part based on the fact that the UE is frequency-division multiplexed with another UE and at least in part based on the fact that the priority of the highest priority time slot of the UE in the set of consecutive time slots satisfies a priority threshold.

14. The UE of claim 4, wherein, in order to select the first CPE or the second CPE, the one or more processors are configured to cause the UE to select the second CPE based at least in part on the fact that the UE is frequency-division multiplexed with another UE and at least in part on the fact that the priority of the highest priority time slot of the UE in the set of consecutive time slots satisfies a priority threshold.

15. The UE of claim 1, wherein the UE is a responsive UE of the COT.

16. The UE of claim 15, wherein, in order to select the first CPE or the second CPE, the one or more processors are configured to cause the UE to select the second CPE at least in part based on frequency division multiplexing of the UE with another UE, and wherein the second CPE is a default CPE.

17. The UE of claim 15, wherein, in order to select the first CPE or the second CPE, the one or more processors are configured to cause the UE to select the second CPE at least in part based on the fact that the UE is frequency-division multiplexed with another UE and at least in part based on the fact that the priority of the UE in the second time slot is lower than or equal to the priority of the other UE in the second time slot.

18. The UE of claim 15, wherein, in order to select the first CPE or the second CPE, the one or more processors are configured to cause the UE to select the first CPE at least in part based on the fact that the UE is frequency-division multiplexed with another UE and at least in part based on the fact that the priority of the UE in the second time slot is greater than the priority of the other UE in the second time slot.

19. The UE of claim 15, wherein, in order to select the first CPE or the second CPE, the one or more processors are configured to cause the UE to select the second CPE based at least in part on the fact that the UE is frequency-division multiplexed with another UE and at least in part on the fact that the priority of the highest priority time slot of the UE in the set of consecutive time slots is lower than or equal to the priority of the highest priority time slot of the other UE in the set of consecutive time slots.

20. The UE of claim 15, wherein, in order to select the first CPE or the second CPE, the one or more processors are configured to cause the UE to select the first CPE at least in part based on the fact that the UE is frequency-division multiplexed with another UE and at least in part based on the fact that the highest priority time slot of the UE in the set of consecutive time slots has a higher priority than the highest priority time slot of the other UE in the set of consecutive time slots.

21. The UE of claim 15, wherein, in order to select the first CPE or the second CPE, the one or more processors are configured to cause the UE to select the second CPE, and wherein the second CPE is a candidate CPE from one or more candidate CPEs.

22. The UE of claim 15, wherein, in order to select the first CPE or the second CPE, the one or more processors are configured to cause the UE to select the first CPE.

23. The UE of claim 15, wherein the one or more processors are configured to cause the UE to send an indication that the UE can select to reduce the gap between consecutive time slots in the COT to the size of the CPE.

24. The UE of claim 15, wherein, in order to select the first CPE or the second CPE, the one or more processors are configured to cause the UE to select the second CPE at least in part based on the UE being frequency-division multiplexed with another UE and at least in part based on the UE's priority in the second time slot satisfying a priority threshold.

25. The UE of claim 15, wherein, in order to select the first CPE or the second CPE, the one or more processors are configured to cause the UE to select the first CPE at least in part based on the UE being frequency-division multiplexed with another UE and at least in part based on the UE's priority in the second time slot satisfying a priority threshold.

26. The UE of claim 15, wherein, in order to select the first CPE or the second CPE, the one or more processors are configured to cause the UE to select the second CPE based at least in part on the fact that the UE is frequency-division multiplexed with another UE and at least in part on the fact that the priority of the highest priority time slot of the UE in the set of consecutive time slots satisfies a priority threshold.

27. The UE of claim 15, wherein, in order to select the first CPE or the second CPE, the one or more processors are configured to cause the UE to select the first CPE based at least in part on the fact that the UE is frequency-division multiplexed with another UE and at least in part on the fact that the priority of the highest priority time slot of the UE in a set of consecutive time slots satisfies a priority threshold.

28. The UE of claim 1, wherein, in order to select the first CPE or the second CPE, the one or more processors are configured to cause the UE to: The first CPE is selected at least in part based on the fact that the UE's handover capability does not meet the handover capability threshold, or The second CPE is selected at least in part based on the fact that the UE's handover capability meets the handover capability threshold.

29. The UE of claim 1, wherein, in order to select the first CPE or the second CPE, the one or more processors are configured to cause the UE to select the first CPE at least in part based on the fact that the default CPE configured for the UE does not meet the handover capability threshold.

30. A method for wireless communication performed by a user equipment (UE), the method comprising: The first cyclic prefix extension (CPE) or the second CPE is selected at least in part based on one or more conditions, wherein the first cyclic prefix extension (CPE) reduces the gap between the first and second time slots in the channel occupied time (COT) to the size that protects the continuous sidelink transmissions performed by the UE in the first and second time slots, and the second CPE does not reduce the gap to the size; as well as At least in part based on one or more of the conditions, an attempt is made to send communication in the second time slot using a selected CPE from the first CPE or the second CPE.

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