Setting the cyclic prefix extension start position

Abstract

Various aspects of the present disclosure generally relate to wireless communications. In some aspects, a user equipment (UE) may receive a configuration from a network node indicating one or more cyclic prefix extension (CPE) starting locations. The UE may transmit a sidelink transmission using a selected CPE starting location of the one or more CPE starting locations based at least in part on the configuration received from the network node. Numerous other aspects are described.

Description

[Technical Field]

[0001] (CROSS-REFERENCE TO RELATED APPLICATIONS)

[0001] This patent application claims priority to Greek Non-Provisional Patent Application No. 20220100902, filed November 4, 2022, entitled "CONFIGURATION OF CYCLIC PREFIX EXTENSION STARTING POSITIONS," which is expressly incorporated herein by reference.

[0002] Aspects of the present disclosure generally relate to wireless communications and to techniques and apparatus for configuring a cyclic prefix extension (CPE) starting location. [Background technology]

[0003]

[0003] Wireless communication systems are widely deployed to provide various telecommunication services such as telephony, video, data, messaging, and broadcasting. Typical wireless communication systems may employ multiple access technologies capable of supporting communication with multiple users by sharing available system resources (e.g., bandwidth, transmit power, etc.). Examples of such multiple access technologies include Code Division Multiple Access (CDMA) systems, Time Division Multiple Access (TDMA) systems, Frequency Division Multiple Access (FDMA) systems, Orthogonal Frequency Division Multiple Access (OFDMA) systems, Single-Carrier Frequency Division Multiple Access (SC-FDMA) systems, Time Division Synchronous Code Division Multiple Access (TD-SCDMA) systems, and Long Term Evolution (LTE). LTE / LTE-Advanced is a set of extensions to the Universal Mobile Telecommunications System (UMTS) mobile standard promulgated by the Third Generation Partnership Project (3GPP).

[0004] A wireless network may include one or more network nodes that support communication for wireless communication devices, such as a user equipment (UE) or multiple UEs. A UE may communicate with a network node via downlink and uplink communications. The "downlink" (or "DL") refers to the communication link from the network node to the UE, and the "uplink" (or "UL") refers to the communication link from the UE to the network node. Some wireless networks may support device-to-device communications via local links (e.g., sidelinks (SL), wireless local area network (WLAN) links, and / or wireless personal area network (WPAN) links, among other examples).

[0005]

[0005] The above multiple access technologies have been adopted in various telecommunications standards to provide common protocols that allow various UEs to communicate at a city, country, region, and / or global level. New Radio (NR), sometimes referred to as 5G, is a set of enhancements to the LTE mobile standard promulgated by 3GPP. NR is designed to better support mobile broadband Internet access by improving spectral efficiency, lowering costs, improving service, utilizing new spectrum, and by using Orthogonal Frequency Division Multiplexing (OFDM) with Cyclic Prefix (CP) (CP-OFDM) on the downlink and CP-OFDM and / or Single-Carrier Frequency Division Multiplexing (SC-FDM) (also known as Discrete Fourier Transform Spread OFDM, DFT-s-OFDM) on the uplink, better integrating with other open standards, and supporting beamforming, multiple-input multiple-output (MIMO) antenna technology, and carrier aggregation. As demand for mobile broadband access continues to grow, further improvements in LTE, NR, and other radio access technologies remain useful. Summary of the Invention

[0006]

[0006] In some implementations, an apparatus for wireless communication in a user equipment (UE) includes a memory and one or more processors coupled to the memory, wherein the one or more processors are configured to: receive a configuration from a network node indicating one or more cyclic prefix extension (CPE) starting locations; and transmit a sidelink transmission using a selected CPE starting location of the one or more CPE starting locations based at least in part on the configuration received from the network node.

[0007]

[0007] In some implementations, an apparatus for wireless communication in a network node includes a memory and one or more processors coupled to the memory, wherein the one or more processors are configured to transmit a configuration to a UE indicating one or more CPE start locations, and sidelink transmissions using a selected CPE start location of the one or more CPE start locations are based at least in part on the configuration.

[0008]

[0008] In some implementations, a method of wireless communication performed by a UE includes receiving a configuration from a network node indicating one or more CPE origination locations, and transmitting a sidelink transmission using a selected CPE origination location of the one or more CPE origination locations based at least in part on the configuration received from the network node.

[0009]

[0009] In some implementations, a method of wireless communication performed by a network node includes transmitting a configuration to a UE indicating one or more CPE origination locations, and sidelink transmissions using a selected one of the one or more CPE origination locations are based at least in part on the configuration.

[0010]

[0010] In some implementations, a non-transitory computer-readable medium storing a set of instructions for wireless communications includes one or more instructions that, when executed by one or more processors of the UE, cause the UE to receive a configuration from a network node indicating one or more CPE start locations, and transmit a sidelink transmission using a selected CPE start location of the one or more CPE start locations based at least in part on the configuration received from the network node.

[0011]

[0011] In some implementations, a non-transitory computer-readable medium storing a set of instructions for wireless communications includes one or more instructions that, when executed by one or more processors of a network node, cause the network node to transmit a configuration to a UE indicating one or more CPE start locations, and sidelink transmissions using a selected CPE start location of the one or more CPE start locations are based at least in part on the configuration.

[0012]

[0012] In some implementations, an apparatus for wireless communication includes means for receiving a configuration from a network node indicating one or more CPE start locations, and means for transmitting a sidelink transmission using a selected CPE start location of the one or more CPE start locations based at least in part on the configuration received from the network node.

[0013]

[0013] In some implementations, an apparatus for wireless communication includes means for transmitting a configuration to a UE indicating one or more CPE start locations, and sidelink transmissions using a selected CPE start location of the one or more CPE start locations are based at least in part on the configuration.

[0014]

[0014] Aspects generally include methods, apparatus, systems, computer program products, non-transitory computer-readable media, user equipment, base stations, network entities, network nodes, wireless communication devices, and / or processing systems substantially as described herein with reference to the drawings and this specification, and as illustrated by the drawings and this specification.

[0015]

[0015] The foregoing has outlined rather broadly the features and technical advantages of embodiments of the present disclosure in order that the following Detailed Description may be better understood. Additional features and advantages will be described hereinafter. The concepts and specific examples disclosed may be readily utilized as a basis for modifying or designing other structures for carrying out the same purposes of the present disclosure. Such equivalent constructions do not depart from the scope of the appended claims. The properties of the concepts disclosed herein, both their organization and method of operation, together with associated advantages, will be better understood by considering the following description in conjunction with the accompanying figures. Each of the figures is provided for purposes of illustration and description, and not as a definition of the limits of the claims.

[0016] Although aspects are described in this disclosure by way of example with respect to some examples, those skilled in the art will understand that such aspects can be implemented in many different configurations and scenarios. The techniques described herein can be implemented using a variety of platform types, devices, systems, shapes, sizes, and / or packaging configurations. For example, some aspects can be implemented via integrated chip embodiments or other non-modular component-based devices (e.g., end-user devices, vehicles, communications devices, computing devices, industrial equipment, retail / purchasing 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 (e.g., hardware components including antennas, radio frequency (RF) chains, power amplifiers, modulators, buffers, processors, interleavers, summers, and / or analog summers) for analog and digital purposes. It is contemplated that aspects described herein may be practiced in a wide variety of devices, components, systems, distributed configurations, and / or end-user devices of various sizes, shapes, and configurations. [Brief explanation of the drawings]

[0017]

[0017] In order to be able to understand in detail the features of the present disclosure listed above, a more detailed description briefly summarized above can be obtained by referring to the embodiments, some of which are shown in the accompanying drawings. However, it should be noted that the accompanying drawings only show certain exemplary embodiments of the present disclosure, and therefore should not be considered as limiting the scope of the present disclosure, as the description may be incorporated into other equally effective embodiments. The same reference numbers in different drawings may identify the same or similar elements. [Figure 1]

[0018] FIG. 1 illustrates an example of a wireless network according to the present disclosure. [Figure 2]

[0019] FIG. 1 illustrates an example of a network node in communication with a user equipment (UE) in a wireless network according to the present disclosure. [Figure 3]

[0020] FIG. 1 illustrates an exemplary disaggregated base station architecture in accordance with the present disclosure. [Figure 4]

[0021] FIG. 1 illustrates an example of a single cyclic prefix extension (CPE) starting location in accordance with the present disclosure. [Figure 5]

[0022] FIG. 10 illustrates an example of multiple CPE starting locations according to the present disclosure. [Figure 6]

[0023] 1 illustrates an example of a reserved CPE and a priority CPE according to the present disclosure. [Figure 7]

[0024] FIG. 1 illustrates an example of prioritized transmission according to the present disclosure. [Figure 8]

[0025] FIG. 1 illustrates an example of prioritized transmission according to the present disclosure. [Figure 9]

[0026] 10A-10C illustrate examples relating to setting a CPE start location in accordance with the present disclosure. [Figure 10]

[0027] FIG. 1 illustrates an exemplary process associated with setting a CPE start location in accordance with the present disclosure. [Figure 11] FIG. 1 illustrates an exemplary process associated with setting a CPE start location in accordance with the present disclosure. [Figure 12]

[0028] FIG. 1 is a diagram of an exemplary apparatus for wireless communication according to the present disclosure. [Figure 13] FIG. 1 is a diagram of an exemplary apparatus for wireless communication according to the present disclosure. DETAILED DESCRIPTION OF THE INVENTION

[0018]

[0029] Various aspects of the present disclosure will now be described more fully with reference to the accompanying drawings. However, the present disclosure may be embodied in many different forms and should not be construed as limited to any specific structure or function presented throughout this disclosure. Rather, these aspects are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. Those skilled in the art will appreciate that the scope of the present disclosure is intended to encompass all aspects of the present disclosure disclosed herein, whether implemented independently or in combination with any other aspects of the present disclosure. For example, an apparatus can be implemented or a method can be practiced using any number of the aspects described herein. Furthermore, the scope of the present disclosure is intended to encompass such apparatuses or methods practiced using other structure, functionality, or structure and functionality in addition to or other than the various aspects of the present disclosure described herein. It should be understood that any aspect of the present disclosure disclosed herein can be embodied by one or more elements of a claim.

[0019]

[0030] Several aspects of telecommunications systems will now be presented with reference to various devices and techniques. These devices and techniques are described in the Detailed Description below and illustrated in the accompanying drawings by various blocks, modules, components, circuits, steps, processes, algorithms, etc. (collectively referred to as "elements"). These elements may be implemented using hardware, software, or a combination thereof. Whether such elements are implemented as hardware or software depends on the particular application and design constraints imposed on the overall system.

[0020]

[0031] Although aspects may be described herein using terminology commonly associated with 5G or New Radio (NR) radio access technology (RAT), aspects of the present disclosure may also be applied to other RATs, such as 3G RAT, 4G RAT, and / or RATs subsequent to 5G (e.g., 6G).

[0021]

[0032] 1 illustrates one example of a wireless network 100 in accordance with the present disclosure. Wireless network 100 may be, or may include elements of, a 5G (e.g., NR) network and / or a 4G (e.g., Long Term Evolution (LTE)) network, among other examples. Wireless network 100 may include one or more network nodes 110 (shown as network node 110a, network node 110b, network node 110c, and network node 110d), user equipment (UE) 120 or multiple UEs 120 (shown as UE 120a, UE 120b, UE 120c, UE 120d, and UE 120e), and / or other entities. 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 may be an aggregated network node, meaning that the 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 may be a disaggregated network node (sometimes referred to as a disaggregated 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 (e.g., one or more central units (CUs), one or more distributed units (DUs), or one or more radio units (RUs)).

[0022]

[0033] In some embodiments, the network node 110 is or includes a network node, such as a RU, that communicates with the UE 120 over a radio access link. In some embodiments, the network node 110 is or includes a network node, such as a DU, that communicates with other network nodes 110 over a fronthaul link or a midhaul link. In some embodiments, the network node 110 is or includes a network node, such as a CU, that communicates with other network nodes 110 over a midhaul link or with a core network over a backhaul link. In some embodiments, the network node 110 (e.g., an aggregated network node 110 or a disaggregated network node 110) may include multiple network nodes, such as one or more RUs, one or more CUs, and / or one or more DUs. The network nodes 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, transmission reception points (TRPs), DUs, RUs, CUs, network mobility elements, core network nodes, network elements, network equipment, RAN nodes, or combinations thereof. In some embodiments, the network nodes 110 may be interconnected to each other or to one or more other network nodes 110 within the wireless network 100 through various types of fronthaul, midhaul, and / or backhaul interfaces, such as direct physical connections, air interfaces, or virtual networks, using any suitable transport network.

[0023]

[0034] In some embodiments, a network node 110 may provide communication coverage for a particular geographic area. In the Third Generation Partnership Project (3GPP), the term “cell” can refer to the coverage area of ​​the network node 110 and / or a network node subsystem serving that coverage area, depending on the context in which the term is used. The network node 110 may provide communication coverage for a macrocell, a picocell, a femtocell, and / or another type of cell. A macrocell may cover a relatively large geographic area (e.g., a few kilometers in radius) and may allow unrestricted access by UEs 120 with service subscriptions. A picocell may cover a relatively small geographic area and may allow unrestricted access by UEs 120 with service subscriptions. A femtocell may cover a relatively small geographic area (e.g., a home) and may allow restricted access by UEs 120 having an association with the femtocell (e.g., UEs 120 in a closed subscriber group (CSG)). A network node 110 for a macro cell may be referred to as a macro network node. A network node 110 for a pico cell may be referred to as a pico network node. A network node 110 for a femto cell may be referred to as a femto network node or a home network node. In the example shown in FIG. 1 , network node 110a may be a macro network node for macro cell 102a, network node 110b may be a pico network node for pico cell 102b, and network node 110c may be a femto network node for femto cell 102c. A network node may support one or multiple (e.g., three) cells. In some examples, a cell may not necessarily be fixed, and the geographic area of ​​a cell may move according to the location of a mobile network node 110 (e.g., a mobile network node).

[0024]

[0035] In some aspects, the term “base station” or “network node” may refer to an aggregated base station, a non-aggregated base station, an integrated access and backhaul (IAB) node, a relay node, or one or more components thereof. For example, in some aspects, a “base station” or a “network node” may refer to a CU, DU, RU, a Near-Real Time (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 one device configured to perform one or more functions, such as those described herein in connection 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, multiple different devices (which may be located in the same geographic location or different geographic locations) may each be configured to perform at least a portion of the functions or to replicate the performance of at least a portion of the functions, and the term "base station" or "network node" may refer to any one or more of those different devices. In some aspects, the term "base station" or "network node" may refer to one or more virtual base stations or one or more virtual base station functions. For example, in some aspects, two or more base station functions may be instantiated on a single device. In some aspects, the term "base station" or "network node" may refer to one of the base station functions and not another base station function. In this manner, a single device may include two or more base stations.

[0025]

[0036] The wireless network 100 may include one or more relay stations. A relay station is a network node that can receive a data transmission from an upstream node (e.g., a network node 110 or a UE 120) and transmit the data transmission to a downstream node (e.g., a UE 120 or a network node 110). A relay station may also be a UE 120 that can relay a transmission for another UE 120. In the embodiment shown in FIG. 1, 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 communications between network node 110a (e.g., a macro network node) and UE 120d. A network node 110 that relays communications may also be referred to as a relay station, a relay base station, a relay network node, a relay node, a repeater, etc.

[0026]

[0037] The wireless network 100 may be a heterogeneous network that includes different types of network nodes 110, such as macro network nodes, pico network nodes, femto network nodes, relay network nodes, etc. These different types of network nodes 110 may have different transmit power levels, different coverage areas, and / or different susceptibility to interference within the wireless network 100. For example, the macro network nodes may have high transmit power levels (e.g., 5-40 watts), while the pico network nodes, femto network nodes, and relay network nodes may have lower transmit power levels (e.g., 0.1-2 watts).

[0027]

[0038] A network controller 130 may be coupled to or in communication with a set of network nodes 110 and may provide coordination and control for these network nodes 110. The network controller 130 may communicate with the network nodes 110 via backhaul or midhaul communication links. The network nodes 110 may communicate with each other directly or indirectly via wireless or wired backhaul communication links. In some aspects, the network controller 130 may be or may include a CU or a core network device.

[0028]

[0039] The UEs 120 may be dispersed throughout the wireless network 100, and each UE 120 may be stationary or mobile. The UEs 120 may include, for example, access terminals, terminals, mobile stations, and / or subscriber units. The UE 120 may be a mobile 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, a camera, a gaming device, a netbook, a smartbook, an ultrabook, a medical device, a biometric device, a wearable device (e.g., a smart watch, smart clothing, smart glasses, 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 satellite radio), a vehicle component or sensor, a smart meter / sensor, industrial manufacturing equipment, a global positioning system device, a UE function of a network node, and / or any other suitable device configured to communicate over a wireless or wired medium.

[0029]

[0040] Some UEs 120 may be considered machine-type communication (MTC) UEs or evolved or enhanced machine-type communication (eMTC) UEs. MTC UEs and / or eMTC UEs may include, for example, a robot, a drone, a remote device, a sensor, a meter, a monitor, and / or a location tag capable of communicating with a network node, 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 narrowband IoT (NB-IoT) devices. Some UEs 120 may be considered customer premises equipment. The UE 120 may be included within a housing that houses components of the UE 120, such as a processor component and / or a memory component. In some embodiments, the processor component and the memory component may be coupled together. For example, a processor component (e.g., one or more processors) and a memory component (e.g., memory) may be operatively coupled, communicatively coupled, electronically coupled, and / or electrically coupled.

[0030]

[0041] In general, any number of wireless networks 100 may be deployed within a given geographic area. Each wireless network 100 may support a particular RAT and may operate on one or more frequencies. A RAT may also be referred to as a radio technology, air interface, etc. A frequency may also be referred to as a carrier, frequency channel, etc. To avoid interference between wireless networks of different RATs, each frequency may support a single RAT within a given geographic area. In some cases, NR or 5G RAT networks may be deployed.

[0031]

[0042] In some embodiments, two or more UEs 120 (e.g., those shown as UE 120a and UE 120e) may communicate directly (e.g., without using network node 110 as an intermediary to communicate with each other) using one or more sidelink channels. For example, the UEs 120 may communicate using peer-to-peer (P2P) communication, device-to-device (D2D) communication, a vehicle-to-everything (V2X) protocol (which may include, e.g., a vehicle-to-vehicle (V2V) protocol, a vehicle-to-infrastructure (V2I) protocol, or a vehicle-to-pedestrian (V2P) protocol), and / or a mesh network. In such embodiments, the UEs 120 may perform scheduling operations, resource selection operations, and / or other operations described elsewhere herein as being performed by the network node 110.

[0032]

[0043] Devices of wireless network 100 may communicate using an electromagnetic spectrum, which may be subdivided by frequency or wavelength into various classes, bands, channels, etc. For example, devices of wireless network 100 may communicate using one or more operating bands. In 5G NR, two initial operating bands have been identified as frequency range designations FR1 (410 MHz to 7.125 GHz) and FR2 (24.25 GHz to 52.6 GHz). It should be understood that, although a portion of FR1 is above 6 GHz, FR1 is often referred to (interchangeably) as the “sub-6 GHz” band in various documents and papers. Similar nomenclature issues may arise with respect to FR2, which is often referred to (interchangeably) as the “millimeter wave” band in documents and papers, even though it is different from the extremely high frequency (EHF) band (30 GHz to 300 GHz) identified by the International Telecommunications Union (ITU) as the “millimeter wave” band.

[0033]

[0044] Frequencies between FR1 and FR2 are often referred to as mid-band frequencies. Recent 5G NR studies have identified operating bands for these mid-band frequencies as a frequency range designated FR3 (7.125 GHz to 24.25 GHz). Frequency bands included within FR3 may inherit FR1 and / or FR2 characteristics, thus effectively extending the characteristics of FR1 and / or FR2 to the mid-band frequencies. Higher frequency bands are currently being explored to extend 5G NR operation beyond 52.6 GHz. For example, three higher operating bands have been identified as frequency ranges designated 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 is included within the EHF band.

[0034]

[0045] With the above examples in mind, it should be understood that, unless otherwise specified, terms such as "sub-6 GHz," as used herein, may broadly refer to frequencies that may be below 6 GHz, frequencies that may be in the FR1 range, or frequencies that may include mid-band frequencies. Furthermore, unless otherwise specified, it should be understood that terms such as "millimeter wave," as used herein, may broadly refer to frequencies that may include mid-band frequencies, frequencies that may be in the FR2, FR4, FR4-a, or FR4-1, and / or FR5 ranges, or frequencies that may be in the EHF band. It is contemplated that frequencies included within these operating bands (e.g., FR1, FR2, FR3, FR4, FR4-a, FR4-1, and / or FR5) may be modified, and the techniques described herein may be applicable to those modified frequency ranges.

[0035]

[0046] In some aspects, a UE (e.g., UE 120) may include a communications manager 140. As described in more detail elsewhere herein, the communications manager 140 may receive a configuration from a network node indicating one or more cyclic prefix extension (CPE) origination locations and transmit a sidelink transmission using a selected one of the one or more CPE origination locations based at least in part on the configuration received from the network node. Additionally, or alternatively, the communications manager 140 may perform one or more other operations described herein.

[0036]

[0047] In some aspects, a network node (e.g., network node 110) may include a communications manager 150. As described in more detail elsewhere herein, the communications manager 150 may transmit a configuration to the UE indicating one or more CPE origination locations, and sidelink transmissions using a selected one of the one or more CPE origination locations are based at least in part on the configuration. Additionally, or alternatively, the communications manager 150 may perform one or more other operations described herein.

[0037]

[0048] As noted above, Figure 1 is provided as an example. Other examples may differ from those described with respect to Figure 1.

[0038]

[0049] 2 illustrates an example embodiment 200 of a network node 110 in communication with a UE 120 in a wireless network 100 in accordance with the present disclosure. The network node 110 may be equipped with a set of antennas 234a through 234t, such as T antennas (T≧1). The UE 120 may be equipped with a set of antennas 252a through 252r, such as R antennas (R≧1). The network node 110 of example 200 includes one or more radio frequency components, such as the antennas 234 and a modem 232. In some embodiments, the network node 110 may include an interface, a communication component, or another component that facilitates communication with the UE 120 or another network node. Some network nodes 110 may not include a radio frequency component that facilitates direct communication with the UE 120, such as one or more CUs or one or more DUs.

[0039]

[0050] At the network node 110, a transmit processor 220 may receive data destined for a UE 120 (or set of UEs 120) from a data source 212. The transmit processor 220 may select one or more modulation and coding schemes (MCSs) for the UE 120 based at least in part on one or more channel quality indicators (CQIs) received from the UE 120. The network node 110 may process (e.g., encode and modulate) data for the UE 120 and provide data symbols to the UE 120 based at least in part on the MCS(es) selected for the UE 120. The transmit processor 220 may process system information (e.g., related to semi-static resource partitioning information (SRPI)) and control information (e.g., CQI requests, grants, and / or higher layer signaling) and provide overhead symbols and control symbols. The transmit processor 220 may generate reference symbols for a reference signal (e.g., a cell-specific reference signal (CRS) or a demodulation reference signal (DMRS)) and a synchronization signal (e.g., a primary synchronization signal (PSS) or a secondary synchronization signal (SSS)). The transmit (TX) multiple-input multiple-output (MIMO) processor 230 may perform spatial processing (e.g., precoding) on ​​the data symbols, control symbols, overhead symbols, and / or reference symbols, if applicable, and may provide a set of output symbol streams (e.g., T output symbol streams) to a corresponding set of modems 232 (e.g., T modems), depicted as modems 232a through 232t.For example, each output symbol stream may be provided to a modulator component (denoted as MOD) of modem 232. Each modem 232 may process (e.g., for OFDM) the corresponding output symbol stream using a corresponding modulator component to obtain an output sample stream. Each modem 232 may further process (e.g., convert to analog, amplify, filter, and / or upconvert) the output sample stream using a corresponding modulator component to obtain a downlink signal. Modems 232a through 232t may transmit a set of downlink signals (e.g., T downlink signals) via a corresponding set of antennas 234 (e.g., T antennas), denoted as antennas 234a through 234t.

[0040]

[0051] At the UE 120, a set of antennas 252 (depicted as antennas 252a through 252r) may receive downlink signals from the network node 110 and / or other network nodes 110 and may provide a set of received signals (e.g., R received signals) to a set of modems 254 (e.g., R modems) depicted as modems 254a through 254r. For example, each received signal may be provided to a demodulator component (depicted as DEMOD) of the modem 254. Each modem 254 may obtain input samples by conditioning (e.g., filtering, amplifying, downconverting, and / or digitizing) the received signal using a corresponding demodulator component. Each modem 254 may further process the input samples (e.g., for OFDM) using the demodulator component to obtain received symbols. A MIMO detector 256 may obtain received symbols from the modems 254, perform MIMO detection on the received symbols, if applicable, and provide the detected symbols. The receive processor 258 may process (e.g., demodulate and decode) the detected symbols, provide decoded data for the UE 120 to a data sink 260, and provide decoded control and system information to a controller / processor 280. The term “controller / processor” may refer to one or more controllers, one or more processors, or a combination thereof. The channel processor may determine a reference signal received power (RSRP) parameter, a received signal strength indicator (RSSI) parameter, a reference signal received quality (RSRQ) parameter, and / or a CQI parameter, among other examples. In some embodiments, one or more components of the UE 120 may be included within a housing 284.

[0041]

[0052] The network controller 130 may include a communication unit 294, a controller / processor 290, and a memory 292. The network controller 130 may include, for example, one or more devices in a core network. The network controller 130 may communicate with the network node 110 via the communication unit 294.

[0042]

[0053] One or more antennas (e.g., antennas 234a-t and / or antennas 252a-r) may include or be contained 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, among other examples. An antenna panel, antenna group, set of antenna elements, and / or antenna array may include one or more antenna elements (in a single housing or multiple housings), a set of coplanar antenna elements, a set of non-coplanar antenna elements, and / or one or more antenna elements coupled to one or more transmitting and / or receiving components, such as one or more components of FIG. 2.

[0043]

[0054] On the uplink, at the UE 120, the transmit processor 264 may receive and process data from the data source 262 and control information from the controller / processor 280 (e.g., for reports including RSRP, RSSI, RSRQ, and / or CQI). The transmit processor 264 may generate reference symbols for one or more reference signals. The symbols from the transmit processor 264 may be precoded by the TX MIMO processor 266, if applicable, further processed by the modem 254 (e.g., for DFT-s-OFDM or CP-OFDM), and transmitted to the network node 110. In some embodiments, the modem 254 of the UE 120 may include a modulator and a demodulator. In some embodiments, the UE 120 includes a transceiver. The transceiver may include any combination of antenna(s), modem(s), 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 implement aspects of any of the methods described herein (e.g., with reference to Figures 9-13).

[0044]

[0055] At the network node 110, uplink signals from the UE 120 and / or other UEs may be received by an antenna 234, processed by a modem 232 (e.g., a demodulator component of the modem 232, denoted as DEMOD), detected by a MIMO detector 236, if applicable, and further processed by a receive processor 238 to obtain decoded data and control information sent by the UE 120. The receive processor 238 may provide the decoded data to a data sink 239 and the decoded control information to a controller / processor 240. The network node 110 may include a communication unit 244 and may communicate with the network controller 130 via the communication unit 244. The network node 110 may include a scheduler 246 for scheduling one or more UEs 120 for downlink and / or uplink communications. In some embodiments, the modem 232 of the network node 110 may include a modulator and a demodulator. In some embodiments, the network node 110 includes a transceiver. The transceiver may include any combination of antenna(s) 234, modem(s) 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 implement aspects of any of the methods described herein (e.g., with reference to FIGS. 9-13).

[0045]

[0056] As described in more detail elsewhere herein, the controller / processor 240 of the network node 110, the controller / processor 280 of the UE 120, and / or any other component(s) of FIG. 2 may implement one or more techniques associated with setting a CPE origination location. For example, the controller / processor 240 of the network node 110, the controller / processor 280 of the UE 120, and / or any other component(s) of FIG. 2 may perform or direct the operations of, for example, process 1000 of FIG. 10, process 1100 of FIG. 11, and / or other processes as described herein. The memory 242 and the memory 282 may store data and program code for the network node 110 and the UE 120, respectively. In some embodiments, the memory 242 and / or the 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, when executed by one or more processors of network node 110 and / or UE 120 (e.g., directly or after being compiled, translated, and / or interpreted), may cause the one or more processors, UE 120, and / or network node 110 to perform or direct the operations of, for example, process 1000 of FIG. 10, process 1100 of FIG. 11, and / or other processes as described herein. In some embodiments, executing the instructions may include running the instructions, translating the instructions, compiling the instructions, and / or interpreting the instructions, among other examples.

[0046]

[0057] In some aspects, a UE (e.g., UE 120) includes means for receiving, from a network node, a configuration indicating one or more CPE origination locations, and / or means for transmitting sidelink transmissions using a selected one of the one or more CPE origination locations based at least in part on the configuration received from the network node. The means for causing the UE to perform the operations described herein may include, for example, one or more of communications manager 140, antenna 252, modem 254, MIMO detector 256, receive processor 258, transmit processor 264, TX MIMO processor 266, controller / processor 280, or memory 282.

[0047]

[0058] In some aspects, a network node (e.g., network node 110) includes means for transmitting, to a UE, a configuration indicating one or more CPE origination locations, and sidelink transmissions using a selected one of the one or more CPE origination locations are based at least in part on the configuration. Means for causing a network node to perform operations described herein may include, for example, one or more of communications manager 150, transmit processor 220, TX MIMO processor 230, modem 232, antenna 234, MIMO detector 236, receive processor 238, controller / processor 240, memory 242, or scheduler 246.

[0048]

[0059] 2 are shown as separate components, the functionality described above with respect to these blocks may be implemented in a single hardware, software, or combined component, or in various combinations of components. For example, the functionality 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.

[0049]

[0060] As noted above, Figure 2 is provided as an example. Other examples may differ from those described with respect to Figure 2.

[0050]

[0061] The deployment of a communication system, such as a 5G NR system, can be configured in multiple ways with various components or parts. In a 5G NR system or network, a network node, network entity, network mobility element, RAN node, core network node, network element, base station, or network equipment can be implemented in a centralized or disaggregated architecture. For example, a base station (e.g., a Node B (NB), evolved NB (eNB), NR base station, 5G NB, access point (AP), TRP, or cell, among other examples), or one or more units (or one or more components) performing base station functionality, may be implemented as a centralized base station (also known as a standalone base station or monolithic base station) or a disaggregated base station. A "network entity" or a "network node" may refer to a disaggregated base station or may refer to one or more units (e.g., one or more CUs, one or more DUs, one or more RUs, or a combination thereof) of a disaggregated base station.

[0051]

[0062] An aggregated base station (e.g., an aggregated network node) may be configured to utilize a radio protocol stack that is physically or logically integrated within a single RAN node (e.g., within a single device or unit). A disaggregated base station (e.g., a disaggregated network node) may be configured to utilize a protocol stack that is physically or logically distributed among two or more units (e.g., one or more CUs, one or more DUs, or one or more RUs). In some embodiments, a 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 throughout one or more other network nodes. A DU may be implemented to communicate with one or more RUs. Each of the CU, DU, and RU may also be implemented as a virtual unit, such as a virtual central unit (VCU), a virtual distributed unit (VDU), or a virtual radio unit (VRU), among other examples.

[0052]

[0063] The operation or network design of a base station type may take into account the aggregation characteristics of base station functionality. For example, disaggregated base stations may be utilized in an IAB network, an open radio access network (O-RAN, such as a network configuration supported by the O-RAN Alliance), or a virtualized radio access network (vRAN, also known as a cloud radio access network (C-RAN)) to facilitate scaling of a communication system by separating base station functionality into one or more units that can be deployed independently. A disaggregated base station may include functionality implemented across two or more units in various physical locations as well as functionality implemented virtually in at least one unit, which may allow flexibility in network design. Various units of a disaggregated base station may be configured for wired or wireless communication with at least one other unit of the disaggregated base station.

[0053]

[0064] 3 illustrates an example disaggregated base station architecture 300 according to the present disclosure. The disaggregated base station architecture 300 may include a CU 310 that can communicate directly with a core network 320 via a backhaul link or indirectly with the core network 320 via one or more disaggregated control units (e.g., a quasi-RT RIC 325 via an E2 link, or a non-RT RIC 315 associated with a Service Management and Orchestration (SMO) framework 305, or both). The CU 310 can communicate with one or more DUs 330 via respective midhaul links, e.g., through an F1 interface. Each of the DUs 330 can communicate with one or more RUs 340 via respective fronthaul links. Each of the RUs 340 can communicate with one or more UEs 120 via respective radio frequency (RF) access links. In some implementations, a UE 120 may be served by multiple RUs 340 simultaneously.

[0054]

[0065] Each of the units, including the CU 310, DU 330, RU 340, and quasi-RT RIC 325, non-RT RIC 315, and SMO framework 305, may include or be coupled to one or more interfaces configured to receive or transmit signals, data, or information (collectively, signals) over a wired or wireless transmission medium. Each of the units, or an associated processor or controller that provides instructions to the corresponding unit's one or more communication interfaces, may be configured to communicate with one or more of the other units over a transmission medium. In some embodiments, each of the units may include a wired interface configured to receive or transmit signals over a wired transmission medium to one or more of the other units, and a wireless interface, which may include a receiver, transmitter, or transceiver (e.g., an RF transceiver), configured to receive, transmit, or transmit and receive signals over a wireless transmission medium to one or more of the other units.

[0055]

[0066] In some aspects, the CU 310 can host one or more higher-layer control functions. Such control functions may include a radio resource control (RRC) function, a packet data convergence protocol (PDCP) function, or a service data adaptation protocol (SDAP) function, among other examples. Each control function may implement an interface configured to communicate signals with other control functions hosted by the CU 310. The CU 310 may be configured to handle user plane functionality (e.g., Central Unit-User Plane (CU-UP) functionality), control plane functionality (e.g., Central Unit-Control Plane (CU-CP) functionality), or a combination thereof. In some implementations, the CU 310 may be logically divided into one or more CU-UP units and one or more CU-CP units. When implemented in an O-RAN configuration, the CU-UP unit may bidirectionally communicate with the CU-CP unit via an interface, such as an E1 interface. The CU 310 may be implemented to communicate with the DU 330 as needed for network control and signaling.

[0056]

[0067] Each DU 330 may correspond to a logical unit including one or more base station functions for controlling the operation of one or more RUs 340. In some aspects, the DU 330 may host one or more of a radio link control (RLC) layer, a medium access control (MAC) layer, and one or more upper physical (PHY) layers, at least in part according to a functional division such as that defined by 3GPP. In some aspects, the one or more upper PHY layers may be implemented by one or more modules for forward error correction (FEC) encoding and decoding, scrambling, and modulation and demodulation, among other examples. In some aspects, the DU 330 may further host one or more lower PHY layers, such as implemented by one or more modules for fast Fourier transform (FFT), inverse FFT (iFFT), digital beamforming, or physical random access channel (PRACH) extraction and filtering, among other examples. Each layer (which may also be referred to as a module) may be implemented with an interface configured to communicate signals with other layers (and modules) hosted by the DU 330 or with control functions hosted by the CU 310.

[0057]

[0068] Each RU 340 may implement lower layer functionality. In some deployments, the RU 340 controlled by the DU 330 may correspond to a logical node hosting RF processing functions or lower PHY layer functions, such as performing FFT, performing iFFT, digital beamforming, or PRACH extraction and filtering, among other examples, based on a functional partition such as a lower layer functional partition (e.g., a functional partition defined by 3GPP). In such an architecture, each RU 340 may be operated to handle over-the-air (OTA) communications with one or more UEs 120. In some implementations, real-time and non-real-time aspects of control plane and user plane communications with the RU 340(s) may be controlled by the corresponding DU 330. In some scenarios, this configuration may enable each DU 330 and CU 310 to be implemented in a cloud-based RAN architecture, such as a vRAN architecture.

[0058]

[0069] The SMO framework 305 may be configured to support RAN deployment and provisioning of non-virtualized and virtualized network elements. For non-virtualized network elements, the SMO framework 305 can be configured to support the deployment of dedicated physical resources for RAN coverage requirements, which can be managed via an operation and maintenance interface (e.g., an O1 interface). For virtualized network elements, the SMO framework 305 can be configured to interact with a cloud computing platform (e.g., an open cloud (O-Cloud) platform 390) to perform lifecycle management of the network elements (e.g., to instantiate virtualized network elements) via a cloud computing platform interface (e.g., an O2 interface). Such virtualized network elements can include, but are not limited to, the CU 310, the DU 330, the RU 340, the non-RT RIC 315, and the quasi-RT RIC 325. In some implementations, the SMO framework 305 can communicate with hardware aspects of a 4G RAN, such as the open eNB (O-eNB) 311, via the O1 interface. Additionally, in some implementations, the SMO framework 305 can communicate directly with each of the one or more RUs 340 via a corresponding O1 interface. The SMO framework 305 can also include a non-RT RIC 315 configured to support the functionality of the SMO framework 305.

[0059]

[0070] The non-RT RIC 315 can be configured to include logic functions that enable non-real-time control and optimization of RAN elements and resources, artificial intelligence / machine learning (AI / ML) workflows including model training and updates, or policy-based guidance of applications / functions in the quasi-RT RIC 325. The non-RT RIC 315 can be coupled to or can communicate with the quasi-RT RIC 325 (e.g., via an A1 interface). The quasi-RT RIC 325 can be configured to include logic functions that enable near-real-time control and optimization of RAN elements and resources through data collection and action via interfaces (e.g., via an E2 interface) that connect one or more CUs 310, one or more DUs 330, or both, and the O-eNB to the quasi-RT RIC 325.

[0060]

[0071] In some implementations, the non-RT RIC 315 can receive parameters or external enrichment information from an external server to generate AI / ML models to be deployed in the quasi-RT RIC 325. Such information can be utilized by the quasi-RT RIC 325 and can be received at the SMO framework 305 or non-RT RIC 315 from non-network data sources or from network functions. In some embodiments, the non-RT RIC 315 or quasi-RT RIC 325 can be configured to adjust RAN behavior or performance. For example, the non-RT RIC 315 may monitor long-term trends and patterns in performance and use the AI / ML models to implement corrective actions through the SMO framework 305 (e.g., reconfiguration via the O1 interface) or through the creation of RAN management policies (e.g., A1 interface policies).

[0061]

[0072] As noted above, Figure 3 is provided as an example. Other examples may differ from those described with respect to Figure 3.

[0062]

[0073] The sidelink may be supported over unlicensed spectrum in both Mode 1 and Mode 2. Uu operation in Mode 1 may be limited to licensed spectrum. The channel access mechanism from NR unlicensed (NR-U) may be reused for sidelink unlicensed operation. Sidelink unlicensed operation may be associated with sidelink resource reservation. The existing NR sidelink and NR-U channel structure may be reused as a baseline for sidelink unlicensed operation. Sidelink unlicensed operation may be associated with FR1 unlicensed spectrum. In sidelink unlicensed operation, network nodes cannot perform Type 1 channel access to initiate and share channel occupation. Network nodes cannot perform Type 2 channel access to share initiated channel occupation. Furthermore, network nodes cannot perform semi-static channel access procedures to access unlicensed channels.

[0063]

[0074] NR sidelink transmissions can start at specific symbol boundaries. Potential collisions can be resolved by network node scheduling (Mode 1) or by resource reservation and UE-to-UE coordinated signaling (Mode 2). In Mode 1, the network node can allocate resources for sidelink communication between UEs. In Mode 2, the UE can autonomously select resources for sidelink communication.

[0064]

[0075] In SL-U, due to the uncertainty of listen-before-talk (LBT), collision resolution based at least in part on signaling may be unreliable, and therefore a distributed mechanism for collision resolution may be required. NR-U may use multiple random CPE start positions along with LBT to resolve collisions for the configured grant physical uplink shared channel (CG-PUSCH). In NR-U, when a UE starts transmission at an earlier position, the UE can block the LBT of another UE that selects a later position, thereby avoiding collisions due to aligned transmission start positions. To improve collision resolution, multiple random CPE start positions may be applied to SL-U. Furthermore, for SL-U, prioritization may be applied to promote high-priority transmissions in congestion scenarios.

[0065]

[0076] The CPE may transmit from the CPE start position to the start of the next automatic gain control (AGC) symbol. A single CPE start position may be supported. Multiple CPE start positions may be supported. A single CPE start position or multiple CPE start positions may be used based at least in part on pre-configuration. The single CPE start position and multiple CPE start positions may be associated with various scenarios, such as inside and outside the channel occupancy time (COT), type(s) of sidelink transmission, Mode 1 resource allocation, and / or Mode 2 resource allocation. The type(s) of sidelink transmission may include physical sidelink shared channel (PSSCH) transmission, physical sidelink control channel (PSCCH) transmission, physical sidelink feedback channel (PSFCH) transmission, and / or sidelink synchronization signal block (S-SSB) transmission.

[0066]

[0077] A single CPE origination location may be able to preserve frequency division multiplexing (FDM) from the NR sidelink. With a single CPE origination location, legacy collision avoidance may be applied, which may involve network node control, reservation, and UE-to-UE coordinated signaling. In some cases, both single and multiple CPE origination locations may be supported, but additional distributed collision avoidance may be required due to the unreliability of signaling-based approaches (e.g., channel access uncertainty). Single and multiple CPE origination locations may be preconfigurable per resource pool. In a single CPE origination location resource pool, the CPE origination location may be a fixed point with no flexibility / controllability (e.g., 16 or 25 microseconds (μs) after the gap symbol start, for both PSFCH and PSSCH). In a multiple CPE start location resource pool, multiple CPE start locations may not always be used for all channels, and a single CPE start location may still be used (e.g., based at least in part on conditions for the PSFCH and / or for the PSSCH).

[0067]

[0078] FIG. 4 is a diagram illustrating an example single CPE starting location 400 according to the present disclosure.

[0068]

[0079] As shown in FIG. 4, a single CPE starting position may be preset to be before the PSFCH symbol (e.g., T s -16μs or T s -25 μs). A single CPE start location can support the PSFCH, which can be based at least in part on a low likelihood of collisions in the resource pool due to mapping and a desire not to block other transmissions. A single CPE start location can be applied regardless of the start COT or COT sharing between UEs.

[0069]

[0080] As noted above, Figure 4 is provided as an example. Other examples may differ from those described with respect to Figure 4.

[0070]

[0081] FIG. 5 is a diagram illustrating an example multiple CPE starting location 500 according to the present disclosure.

[0071]

[0082] Multiple CPE start position locations may be available to start transmissions for the PSSCH. As indicated by reference numeral 502, set S1 (e.g., two 30 kHz symbols) may be defined for COT start. As indicated by reference numeral 504, set S2 (e.g., only gaps at symbol 13) may be defined for COT sharing. CPEs may be selected according to priority, but may better support FDM. FDM may be associated with a reserved CPE (or a common CPE). For example, a reserved CPE may be one of set S1 or set S2 reserved for FDM. FDM may be supported at two levels. Each CPE may be associated with a start position. The first level may be associated with whether FDM is possible (e.g., resource allocation of less than the full resource block set). The second level may be associated with whether FDM is guaranteed (e.g., network node controlled, reservation, or UE-to-UE coordination). Associating FDM with reserved CPEs can be problematic (e.g., failure cases may exist) depending on whether the reserved CPE should be before or after other priority CPEs. To mitigate such issues, other interpretations of reserved CPEs may be considered (e.g., reserved CPE for reserved transmissions). The design of the distributed scheme should enable collision resolution with correct prioritization, similar to FDM. The design of the distributed scheme can take into account whether a reservation is not detected or detected for the same slot. The design of the distributed scheme can take into account whether the transmission is an initial transmission or a retransmission. The design of the distributed scheme can take into account whether the resource allocation is for a complete or partial resource block set.

[0072]

[0083] As noted above, Figure 5 is provided as an example. Other examples may differ from those described with respect to Figure 5.

[0073]

[0084] Reserved CPEs may be allocated a partial resource block set allocation. For the complete resource block set, priority CPEs may be used (e.g., priority CPEs only). For the partial resource block set, reserved CPEs may be used (e.g., reserved CPEs only). Partial resource block sets may potentially be associated with FDM. In this case, only the resource block set allocation (e.g., partial or complete) is used to determine whether priority CPEs or reserved CPEs should be used.

[0074]

[0085] A reserved CPE may be associated with a partial resource block set allocation. For example, a reserved CPE may only be open to a partial resource block set allocation, but not necessarily be used by the partial resource block set allocation. Candidate resources from the PHY layer may be marked as candidate slots that do not overlap with the reservation, candidate slots that overlap with the reservation (but without sub-channel overlap), or candidate slots that overlap with the reservation (and sub-channel overlap).

[0075]

[0086] Priority CPE may be used when the MAC layer selects a candidate slot that does not overlap with reservations and when the selected candidate slot is associated with a complete resource block set. Priority CPE may be used for initial transmissions (e.g., only FDM possibilities are not sufficient) and reserved CPE may be used for retransmissions (e.g., FDM possibilities are possible) when the MAC layer selects a candidate slot that does not overlap with reservations and when the selected candidate slot is associated with a partial resource block set.

[0076]

[0087] When the MAC layer selects a candidate slot that overlaps with a reservation (but does not have sub-channel overlap), and when the selected candidate slot is associated with a complete resource block set, neither the priority CPE nor the reserved CPE is available. When the MAC layer selects a candidate slot that overlaps with a reservation (but does not have sub-channel overlap), and when the selected candidate slot is associated with a partial resource block set, the reserved CPE can be used for the initial transmission (e.g., FDM is possible), and the reserved CPE can be used for retransmissions (e.g., FDM is possible).

[0077]

[0088] Priority CPE may be used when the MAC layer selects a candidate slot that overlaps with a reservation (and overlaps sub-channels) and when the selected candidate slot is associated with a complete resource block set. Priority CPE may be used for initial transmission (e.g., yielding is possible) and reserved CPE may be used for retransmission (e.g., collisions are possible) when the MAC layer selects a candidate slot that overlaps with a reservation (and overlaps sub-channels) and when the selected candidate slot is associated with a partial resource block set.

[0078]

[0089] FIG. 6 is a diagram illustrating an example 600 of reserved and priority CPEs according to the present disclosure.

[0079]

[0090] As indicated by reference numeral 602, the reserved CPE may be located before the priority CPE. For example, the reserved CPE may be associated with t1, the high priority CPE may be associated with t2, and the low priority CPE may be associated with t3. As indicated by reference numeral 604, the reserved CPE may be located after the priority CPE. For example, the high priority CPE may be associated with t1, the low priority CPE may be associated with t2, and the reserved CPE may be associated with t3.

[0080]

[0091] As noted above, Figure 6 is provided as an example. Other examples may differ from those described with respect to Figure 6.

[0081]

[0092] A reserved CPE may be associated with a partial resource block set allocation. For example, a reserved CPE may only be open to a partial resource block set allocation. The complete resource block set is unavailable for the reserved CPE. A reserved CPE may be used with a priority CPE, and the relative position of the reserved CPE may be defined. In a first option, a reserved CPE may be located before a priority CPE. A reserved CPE may be used by a transmission associated with a partial resource block set based at least in part on the reservation, or frequency division multiplexing with reservation, and priority. When a transmission is reserved but not associated with a complete resource block set, the transmission may be constrained to occur afterward and thus penalized by another transmission associated with the partial resource block set. In a second option, a reserved CPE may be located after a priority CPE. A reserved CPE may be populated by partial resource block set transmissions with any priority. A high priority transmission may be blocked by a low priority transmission associated with a complete resource block set. Dynamic use of reserved and priority CPEs may have failure cases when reserved CPEs are located before or after priority CPEs. Full or partial resource block set transmission may be preferred. In this case, pre-configuration per resource pool may be useful. A first resource pool may be associated with an FDM with only a single CPE, and a second resource pool may be associated with a combination of reserved and priority CPEs, but the reserved CPE may be located after the priority CPE.

[0082]

[0093] FIG. 7 is a diagram illustrating an example 700 of prioritized transmission in accordance with the present disclosure.

[0083]

[0094] As indicated by reference numeral 702, reserved CPEs may be located before priority CPEs (e.g., before high priority CPEs and low priority CPEs). Reserved CPEs may be used for transmissions associated with partial resource block sets and any priority. High priority transmissions may be associated with the complete resource block set, so high priority transmissions may be blocked by low priority transmissions. Low priority transmissions may be associated with reserved CPEs that may be located before priority CPEs.

[0084]

[0095] As indicated by reference numeral 704, reserved CPEs may be located after priority CPEs (e.g., after high priority CPEs and low priority CPEs). Reserved CPEs may be used for transmissions associated with partial resource block sets and any priority. High priority transmissions may be associated with the complete resource block set, and low priority transmissions may be associated with the partial resource block set, so that high priority transmissions may be blocked by low priority transmissions.

[0085]

[0096] As noted above, Figure 7 is provided as an example. Other examples may differ from those described with respect to Figure 7.

[0086]

[0097] A reserved CPE may be associated with reserved transmissions (e.g., both complete and partial resource block sets). For example, a reserved CPE may only be open to reserved transmissions. Candidate resources from the PHY layer may be marked as candidate slots that do not overlap with reservations, candidate slots that overlap with reservations (but without sub-channel overlap), or candidate slots that overlap with reservations (and sub-channel overlap).

[0087]

[0098] When the MAC layer selects a candidate slot that does not overlap with a reservation, and when the selected candidate slot is associated with a complete resource block set, the priority CPE can be used for the initial transmission and the reserved CPE can be used for retransmissions.When the MAC layer selects a candidate slot that does not overlap with a reservation, and when the selected candidate slot is associated with a partial resource block set, the priority CPE can be used for the initial transmission and the reserved CPE can be used for retransmissions.

[0088]

[0099] When the MAC layer selects a candidate slot that overlaps with a reservation (but has no sub-channel overlap) and the selected candidate slot is associated with a complete resource block set, neither the priority CPE nor the reserved CPE can be used. When the MAC layer selects a candidate slot that overlaps with a reservation (but has no sub-channel overlap) and the selected candidate slot is associated with a partial resource block set, the reserved CPE or the priority CPE can be used for the initial transmission, and the reserved CPE can be used for retransmissions.

[0089]

[0100] When the MAC layer selects a candidate slot that overlaps with a reservation (and overlaps sub-channels), and when the selected candidate slot is associated with a complete resource block set, the priority CPE can be used for the initial transmission and the reserved CPE can be used for retransmissions.When the MAC layer selects a candidate slot that overlaps with a reservation (and overlaps sub-channels), and when the selected candidate slot is associated with a partial resource block set, the priority CPE can be used for the initial transmission and the reserved CPE can be used for retransmissions.

[0090]

[0101] When a reserved CPE is only open to reserved transmissions (both full and partial resource block sets), the reserved CPE is associated with the reservation and cannot be associated with the partial resource block set, thereby eliminating unfairness between the full and partial resource block sets. Reserved CPEs can be used to provide FDM capabilities. Although collisions in reserved CPEs may still exist, reselection checks may help to avoid collisions, and collisions may be largely avoided.

[0091]

[0102] FIG. 8 is a diagram illustrating an example 800 of prioritized transmission in accordance with the present disclosure.

[0092]

[0103] As indicated by reference numeral 802, the reserved CPE may be located before the high-priority CPE and the low-priority CPE. As indicated by reference numeral 804, two initial transmissions may both be associated with the same priority (e.g., high priority). In this case, the two initial transmissions may collide with each other. As indicated by reference numeral 806, one initial transmission may be associated with high priority and another initial transmission may be associated with low priority. In this case, the initial transmission associated with low priority may be blocked by the initial transmission associated with low priority. As indicated by reference numeral 808, a retransmission may be associated with high priority and the initial transmission may be associated with high priority. In this case, the initial transmission associated with high priority may be blocked by the retransmission associated with high priority. Furthermore, the reserved CPE may be associated with a partial resource block set. As indicated by reference numeral 810, a retransmission may be associated with low priority and the initial transmission may be associated with high priority. In this case, the initial transmission associated with high priority may be blocked by the retransmission associated with low priority. Additionally, a reserved CPE may be associated with a partial set of resource blocks.

[0093]

[0104] As indicated by reference numeral 812, the initial transmission may be associated with a high priority, and the retransmission may be associated with a high priority. In this case, the initial transmission associated with the high priority may be blocked by the retransmission associated with the high priority. Furthermore, the reserved CPE may be associated with the complete resource block set. As indicated by reference numeral 814, the initial transmission may be associated with a high priority, and the retransmission may be associated with a low priority. In this case, the initial transmission associated with the high priority may be blocked by the retransmission associated with the low priority. Furthermore, the reserved CPE may be associated with the complete resource block set. As indicated by reference numeral 816, both two retransmissions may be associated with the same priority (e.g., any priority). In this case, the two retransmissions may collide with each other.

[0094]

[0105] As noted above, Figure 8 is provided as an example. Other examples may differ from those described with respect to Figure 8.

[0095]

[0106] Pre-configured FDM resource pools may be defined. For each resource pool (e.g., FDM resource pool), a single CPE start location and multiple CPE start locations may be specified. In a first resource pool, which may be associated with a single CPE start location, transmissions (e.g., all transmissions) may start at a given point to prioritize alignment and FDM behavior. In a second resource pool, which may be associated with multiple CPE start locations, transmissions (e.g., all transmissions) may select a specific CPE start location according to a priority that may prioritize time division multiplexing (TDM) behavior. In the second resource pool, a single CPE start location may be used according to specific rules.

[0096]

[0107] When a reservation is not detected, there is no guarantee that a UE will perform FDM with another UE, and collisions may occur even when the number of selected subchannels is relatively small. When a UE performs its first transmission, it does not commit any resources to other UEs, and therefore the UE may behave independently. Regardless of the amount of selected subchannels, collisions may occur when UEs use the same CPE, or blocking may occur when UEs use different CPEs. When a UE allocates a complete resource block set, FDM may not be possible, but collisions may occur. The UE can use a long CPE to protect high-priority traffic. When a UE allocates less than the complete resource block set (e.g., a partial resource block set), it can maximize the possibility of FDM using the reserved CPE, but FDM may occur when other UEs also allocate less than the complete resource block set and select non-overlapping subchannels. Two failure cases may occur. In the first failure case, the other UE has a complete resource block set allocation. When a reserved CPE is before a priority CPE, low priority traffic attempting to use FDM may block high priority traffic (associated with the complete resource block set) using the priority-associated CPE. When a reserved CPE is after a priority CPE, high priority traffic attempting FDM may be blocked by low priority traffic (associated with the complete resource block set) using the low priority-associated CPE. In the second failure case, other UEs may have incomplete resource block set allocations, but the subchannels may overlap. In this case, UEs may collide with each other. When a UE uses a priority CPE, high priority may be protected, but low priority may be blocked.When no external reservation is detected and for the first transmission, a single CPE starting position configuration for both full and less-than-full resource block set allocations may not be supported, since collisions may still occur in both cases.

[0097]

[0108] If no reservation is detected, there is no guarantee that the UE will perform FDM with another UE, and collisions may occur even when the number of selected subchannels is relatively small. When a UE performs a retransmission, it may be committing resources for use with other UEs. The UE may consider excluded resources or resources based at least in part on a reevaluation check. Depending on the mutual priority and excluded RSRP thresholds and other parameters such as the packet delay budget (PDB), the second UE may be able to perform FDM (for a partial resource block set), accept collisions, or select some other slot. When the UE allocates a complete resource block set, FDM may not be possible, but collisions may be possible. The UE may use a long CPE to protect high-priority traffic. Depending on the mutual location of the reserved CPE and the priority CPE, using the priority CPE may be disadvantageous, so retransmissions may be associated with the reserved CPE. When the UE allocates less than a complete resource block set (e.g., a partial resource block set), the reserved CPE can be used to maximize the possibility of FDM. FDM may occur based at least in part on a second UE, which may be a reservation receiver. The second UE may exclude resources. The second UE may identify another slot or perform FDM in the same slot. Alternatively, the second UE may exclude resources. The second UE may select non-overlapping resources, which may enable FDM. The second UE may select overlapping resources that may not support FDM. The second UE may provide priority protection to avoid collisions. When no outer reservation is detected, and in the case of retransmissions, when the selection excludes resources reserved by another UE, a single CPE starting positioning within less than the complete resource block set allocation may be supported to provide the UE with an FDM opportunity.

[0098]

[0109] When a reservation is detected, such information can be used to determine whether to perform FDM with alignment without blocking, or when FDM is not achieved. When a UE performs its first transmission, it does not commit any resources to other UEs and may identify the received reservation. The second UE may be able to perform FDM for a partial resource block set, accept collisions, or select some other slot. When a UE allocates a complete resource block set, FDM may not be possible, but collisions may be possible. The UE can use a long CPE to protect high-priority traffic. When a reservation is detected for the same slot, another transmission may occupy the reserved CPE. When the reserved CPE is located before the priority CPE, the first transmission may be blocked, which may be acceptable because other transmissions are reserved. When a UE allocates less than a complete resource block set (e.g., a partial resource block set), the reserved CPE can be used to maximize the potential for FDM. Alignment to the reserved CPE may occur when FDM is performed using the reservation. The priority CPE may be used when selection is made with at least partial overlap. When a reserved CPE is located before the priority CPE, the corresponding transmission may be deprioritized compared to the reserved transmission. When a reservation is received, an FDM attempt may be performed. When FDM is possible, the reserved CPE may be used. When FDM is not possible (e.g., due to partial overlap of subchannels or use of another slot), the priority CPE may be used.

[0099]

[0110] When a reservation is detected, such information can be used to determine whether to perform FDM with alignment without blocking, or when FDM is not achieved. When a UE performs a retransmission, it may commit resources for use by other UEs. The UE can consider excluded resources or resources based at least in part on a reevaluation check. The second UE may be able to perform FDM (for a partial resource block set), accept collisions, or select some other slot. When a UE allocates a complete resource block set, FDM may not be possible, but collisions may occur. The UE can protect high-priority traffic using a long CPE. When a reservation is detected for the same slot, another transmission may occupy the reserved CPE. When a reserved CPE is located before a priority CPE, the first transmission may be blocked, which may be unacceptable because a complete resource block set transmission is reserved and should not yield to another reservation. To solve this problem, the reserved CPE may be associated with the reservation rather than FDM. When a UE allocates less than the complete resource block set (e.g., a partial resource block set), reserved CPEs can be used to maximize the potential of FDM. Alignment to reserved CPEs can be performed when FDM is performed using reservations. Because using priority CPEs can indicate that one reservation is prioritized over another, priority CPEs cannot be used when selection is made with at least partial overlap. Instead, collisions can be accepted and reserved CPEs can be used.

[0100]

[0111] A reserved CPE may be associated with a partial resource block set allocation. For example, a reserved CPE may be open only to a partial resource block set allocation, but not necessarily used by the partial resource block set allocation. For a complete resource block set, the reserved CPE may be used (e.g., only priority CPE). Candidate resources from the PHY layer may be marked as candidate slots that do not overlap with the reservation, candidate slots that overlap with the reservation (but without sub-channel overlap), or candidate slots that overlap with the reservation (and sub-channel overlap). When the MAC layer selects a candidate slot that does not overlap with the reservation, the priority CPE may be used for the initial transmission and the reserved CPE may be used for retransmissions for the partial resource block set. When the MAC layer selects a candidate slot that does not overlap with the reservation, the reserved CPE may be used for the partial resource block set. When the MAC layer selects a candidate slot that overlaps with the reservation (and sub-channel overlap), the priority CPE may be used for the partial resource block set.

[0101]

[0112] Multiple CPE origination locations may not be desirable for SL-U. A single CPE origination location may be preferable for UE FDM, as opposed to multiple CPE origination locations, where UE FDM may not be possible. Without multiple CPE origination locations, there may be a higher chance of collisions between different UEs, which may degrade UE performance.

[0102]

[0113] In various aspects of the techniques and apparatus described herein, a UE may receive a configuration from a network node indicating one or more CPE origination locations. The one or more CPE origination locations may refer to a single CPE origination location or may refer to multiple CPE origination locations. The configuration may be per resource pool. The configuration may be associated with a Mode 2 resource allocation. The UE may transmit a sidelink transmission using a selected CPE origination location of the one or more CPE origination locations based at least in part on the configuration received from the network node. In some aspects, both single CPE origination locations and multiple CPE origination locations may be supported for collision resolution in SL-U while still preserving FDM capability.

[0103]

[0114] 9 is a diagram illustrating an example 900 associated with configuring a CPE start location in accordance with the present disclosure. As shown in FIG. 9, example 900 includes communication between a UE (e.g., UE 120) and a network node (e.g., network node 110). In some aspects, the UE and the network node may be included within a wireless network, such as wireless network 100.

[0104]

[0115] As indicated by reference numeral 902, the UE may receive a configuration from a network node indicating one or more CPE origination locations. The one or more CPE origination locations may refer to a single CPE origination location or may refer to multiple CPE origination locations. The configuration may be per resource pool. The configuration may be associated with a Mode 2 resource allocation. In some aspects, a single CPE origination location may be configured, and the location of the single CPE origination location may be pre-configured or indicated in sidelink control information (SCI). In some aspects, multiple CPE origination locations may be configured, and the location of each of the multiple CPE origination locations may be pre-configured or dynamically indicated via SCI. In some aspects, the configuration may indicate a location associated with a single CPE origination location or each location associated with multiple CPE origination locations. The configuration may indicate each priority associated with multiple CPE origination locations.

[0105]

[0116] In some aspects, the configuration may be per resource pool, determining whether only a single CPE launch location or multiple CPE launch locations are allowed in a particular resource pool. In a resource pool with a single CPE launch location, the CPE may be pre-configured or indicated in the SCI (e.g., in the COT sharing information). In a resource pool that allows multiple CPE launch locations, multiple configurations of CPE launch locations may be pre-configured or dynamically indicated (e.g., via the SCI). Each configuration may indicate a respective location of the CPE, an association with multiple CPE priorities, and / or reserved CPEs and corresponding locations.

[0106]

[0117] In some aspects, the amount of CPE start locations configured may be based at least in part on the particular channel or signal associated with the sidelink. For example, a single CPE start location may be configured for the PSFCH, and multiple CPE start locations may be configured for the PSCCH and / or PSSCH.

[0107]

[0118] In some aspects, multiple CPE start locations may be configured. The multiple CPE start locations may include a set of priority CPE start locations and / or reserved CPE start locations. The set of priority CPE start locations may be used based at least in part on a pre-configuration for a particular channel or signal associated with the sidelink. The reserved CPE start locations may be used based at least in part on a pre-configuration for a particular channel or signal associated with the sidelink.

[0108]

[0119] In some aspects, the use of reserved CPE start locations may be associated at least in part with resource allocation on a subset of available subchannels within a resource block set or within a set of resource block sets based at least in part on resource allocation across two or more resource block sets. In some aspects, the use of reserved CPE start locations may be associated at least in part with sidelink transmissions performed using the reserved resources. In some aspects, the use of reserved CPE start locations may be associated at least in part with detection of a reservation for a different transmission in the same slot from another UE. Resources may be allocated for FDM with different transmissions. In some aspects, a set of priority CPE start locations may be placed before the reserved CPE start locations. In some aspects, a set of priority CPE start locations may be placed after the reserved CPE start locations.

[0109]

[0120] In some aspects, a scheme for selecting a CPE to initiate a transmission may be defined based at least in part on a configuration of available CPE start locations and criteria for selecting a CPE. A set of CPE start locations associated with a priority may be used. The set of CPE start locations may be used based at least in part on a pre-configuration for a particular channel or signal, such as a PSCCH and / or a PSSCH. Reserved CPE start locations may be used based at least in part on a pre-configuration for a particular channel or signal, such as a PSFCH, a PSCCH, and / or a PSSCH. Reserved CPE start locations may be used for PSCCH and / or PSSCH associated with a resource allocation on a subset of available subchannels in a resource block set (or in a set of resource block sets if the resource allocation spans more than one resource block set). Reserved CPE start locations may be used for PSCCH and / or PSSCH associated with performing a sidelink transmission for which resources are reserved (e.g., no initial transmission). The reserved CPE start locations may be used for the PSCCH and / or PSSCH associated with detecting a reservation for a transmission from another UE (e.g., the transmissions may begin in the same slot) without resource collision (e.g., resources for performing FDM may be allocated for that transmission). In some aspects, when both a set of CPE start locations and a reserved CPE start location are used, the set of CPE start locations may occur first and the reserved CPE start location may occur second, or the reserved CPE start location may occur first and the set of CPE start locations may occur second.

[0110]

[0121] In some aspects, a report may be triggered to identify a candidate resource from among a plurality of candidate resources for selection based at least in part on a plurality of configured CPE start locations. The report may indicate a first value. The first value may indicate that no reservation from another UE has been detected in the first slot of the candidate resource. In other words, no reservation has been detected for the first slot of the candidate resource that reserves a transmission starting in the same first slot. The report may indicate a second value. The second value may indicate that a reservation from another UE has been detected in the first slot of the candidate resource and that there are no overlapping subchannels associated with the candidate resource. In other words, no reservation has been detected for the first slot of the candidate resource that reserves a transmission starting in the same first slot and having an overlapping subchannel. The report may indicate a third value. The third value may indicate that a reservation from another UE has been detected in the first slot of the candidate resource and that there is an overlap for the subchannels associated with the candidate resource.

[0111]

[0122] In some aspects, when resource exclusion is triggered to identify candidate resources for selection, an additional report may be sent from the PHY layer to the MAC layer to support a scheme for selecting a CPE to initiate transmission based at least in part on a configuration of available CPE start locations and criteria for selecting the CPE. The PHY layer may mark each candidate resource reported to the MAC layer for selection with a first value, a second value, or a third value. The PHY layer may mark a candidate resource with a first value when no reservation from another UE is detected in the first slot of the candidate resource (e.g., no RSRP exclusion test has been performed). The PHY layer may mark a candidate resource with a second value when a reservation from another UE is detected in the first slot of the candidate resource but no subchannel overlaps with the candidate resource being analyzed (e.g., the candidate resource has not undergone an RSRP exclusion test). When a reservation from another UE is detected in the first slot of a candidate resource and there is an overlap with the candidate resource under analysis in terms of subchannel (e.g., the candidate resource is tested for RSRP exclusion testing and the candidate resource is not excluded), the PHY layer may mark the candidate resource with a third value.

[0112]

[0123] As indicated by reference numeral 904, the UE may transmit a sidelink transmission using a selected CPE origination location of one or more CPE origination locations based at least in part on a configuration received from a network node. The UE may transmit a sidelink transmission to another UE. The UE may transmit a sidelink transmission using a single CPE origination location. Alternatively, the UE may transmit a sidelink transmission using a selected CPE origination location, which may be selected from multiple CPE origination locations.

[0113]

[0124] As noted above, Figure 9 is provided as an example. Other examples may differ from those described with respect to Figure 9.

[0114]

[0125] 10 illustrates an example process 1000 performed, for example, by a UE, in accordance with the present disclosure. The example process 1000 is an example in which a UE (e.g., UE 120) performs operations associated with setting a CPE start location.

[0115]

[0126] 10, in some aspects, process 1000 may include receiving a configuration from a network node indicating one or more CPE starting locations (block 1010). For example, the UE may receive (e.g., using receiving component 1202 depicted in FIG. 12) a configuration from a network node indicating one or more CPE starting locations, as described above.

[0116]

[0127] 10, in some aspects, process 1000 may include transmitting a sidelink transmission using a selected one of the one or more CPE origination locations based at least in part on the configuration received from the network node (block 1020). For example, the UE (e.g., using the transmitting component 1204 depicted in FIG. 12) may transmit a sidelink transmission using a selected one of the one or more CPE origination locations based at least in part on the configuration received from the network node, as described above.

[0117]

[0128] Process 1000 may include additional aspects, such as any single aspect or any combination of aspects, described below and / or in conjunction with one or more other processes described elsewhere herein.

[0118]

[0129] In a first aspect, the configuration is per resource pool.

[0119]

[0130] In a second aspect, alone or in combination with the first aspect, the configuration is associated with Mode 2 resource allocation.

[0120]

[0131] In a third aspect, either alone or in combination with one or more of the first and second aspects, a single CPE start position is set and the location of the single CPE start position is preset or indicated within the SCI.

[0121]

[0132] In a fourth aspect, either alone or in combination with one or more of the first to third aspects, multiple CPE starting locations are set, and the location of each of the multiple CPE starting locations is either pre-set or dynamically indicated via the SCI.

[0122]

[0133] In a fifth aspect, alone or in combination with one or more of the first to fourth aspects, the configuration indicates a location associated with a single CPE initiation location, or each location associated with multiple CPE initiation locations, or the configuration indicates each priority associated with multiple CPE initiation locations.

[0123]

[0134] In a sixth aspect, alone or in combination with one or more of the first to fifth aspects, the quantity of configured CPE starting positions is based at least in part on a particular channel or signal associated with the sidelink.

[0124]

[0135] In a seventh aspect, either alone or in combination with one or more of the first to sixth aspects, multiple CPE start locations are configured, and the multiple CPE start locations include one or more of a set of priority CPE start locations or reserved CPE start locations.

[0125]

[0136] In an eighth aspect, alone or in combination with one or more of the first through seventh aspects, a set of priority CPE start locations or one of the reserved CPE start locations is used based at least in part on pre-configuration of a particular channel or signal associated with the sidelink.

[0126]

[0137] In a ninth aspect, alone or in combination with one or more of the first through eighth aspects, use of a reserved CPE starting location is associated at least in part with resource allocation on a subset of available subchannels within a resource block set, or within a set of resource block sets that is based at least in part on resource allocation across two or more resource block sets.

[0127]

[0138] In a tenth aspect, alone or in combination with one or more of the first through ninth aspects, the use of reserved CPE origination locations is at least partially associated with sidelink transmissions performed using the reserved resources.

[0128]

[0139] In an eleventh aspect, alone or in combination with one or more of the first through tenth aspects, the use of reserved CPE starting locations is associated at least in part with the detection of a reservation for a different transmission in the same slot from another UE, and resources are allocated to FDM with the different transmissions.

[0129]

[0140] In a twelfth aspect, alone or in combination with one or more of the first to eleventh aspects, a set of priority CPE start locations are placed before the reserved CPE start locations, or a set of priority CPE start locations are placed after the reserved CPE start locations.

[0130]

[0141] In a thirteenth aspect, alone or in combination with one or more of the first to twelfth aspects, a report is triggered to identify a candidate resource from among a plurality of candidate resources for selection based at least in part on a plurality of configured CPE start locations, and the report indicates a first value indicating that no reservation from another UE is detected in a first slot of the candidate resource, a second value indicating that a reservation from another UE is detected in the first slot of the candidate resource and there is no overlapping sub-channel associated with the candidate resource, or a third value indicating that a reservation from another UE is detected in the first slot of the candidate resource and there is overlap with respect to a sub-channel associated with the candidate resource.

[0131]

[0142] 10 illustrates example blocks of process 1000, in some aspects process 1000 may include additional, fewer, different, or differently arranged blocks than those illustrated in FIG 10. Additionally or alternatively, two or more of the blocks of process 1000 may be performed in parallel.

[0132]

[0143] 11 illustrates an example process 1100 performed, for example, by a network node, in accordance with the present disclosure. The example process 1100 is an example in which a network node (e.g., network node 110) performs operations associated with setting a CPE start location.

[0133]

[0144] 11, in some aspects, process 1100 may include transmitting a configuration to the UE indicating one or more CPE origination locations, where the sidelink transmission using a selected one of the one or more CPE origination locations is based at least in part on the configuration (block 1110). For example, the network node (e.g., using the transmitting component 1304 shown in FIG. 13) may transmit a configuration to the UE indicating one or more CPE origination locations, where the sidelink transmission using a selected one of the one or more CPE origination locations is based at least in part on the configuration, as described above.

[0134]

[0145] Process 1100 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.

[0135]

[0146] In a first aspect, the configuration is per resource pool.

[0136]

[0147] In a second aspect, alone or in combination with the first aspect, the configuration is associated with Mode 2 resource allocation.

[0137]

[0148] In a third aspect, either alone or in combination with one or more of the first and second aspects, a single CPE start position is set and the location of the single CPE start position is preset or indicated within the SCI.

[0138]

[0149] In a fourth aspect, either alone or in combination with one or more of the first to third aspects, multiple CPE starting locations are set, and the location of each of the multiple CPE starting locations is either pre-set or dynamically indicated via the SCI.

[0139]

[0150] In a fifth aspect, alone or in combination with one or more of the first to fourth aspects, the configuration indicates a location associated with a single CPE initiation location, or each location associated with multiple CPE initiation locations, or the configuration indicates each priority associated with multiple CPE initiation locations.

[0140]

[0151] In a sixth aspect, alone or in combination with one or more of the first to fifth aspects, the quantity of configured CPE starting positions is based at least in part on a particular channel or signal associated with the sidelink.

[0141]

[0152] In a seventh aspect, either alone or in combination with one or more of the first to sixth aspects, multiple CPE start locations are configured, and the multiple CPE start locations include one or more of a set of priority CPE start locations or reserved CPE start locations.

[0142]

[0153] In an eighth aspect, alone or in combination with one or more of the first through seventh aspects, a set of priority CPE start locations or one of the reserved CPE start locations is used based at least in part on pre-configuration of a particular channel or signal associated with the sidelink.

[0143]

[0154] In a ninth aspect, alone or in combination with one or more of the first through eighth aspects, use of a reserved CPE starting location is associated at least in part with resource allocation on a subset of available subchannels within a resource block set, or within a set of resource block sets that is based at least in part on resource allocation across two or more resource block sets.

[0144]

[0155] In a tenth aspect, alone or in combination with one or more of the first through ninth aspects, the use of reserved CPE origination locations is at least partially associated with sidelink transmissions performed using the reserved resources.

[0145]

[0156] In an eleventh aspect, alone or in combination with one or more of the first through tenth aspects, the use of reserved CPE starting locations is associated at least in part with the detection of a reservation for a different transmission in the same slot from another UE, and resources are allocated to FDM with the different transmissions.

[0146]

[0157] In a twelfth aspect, alone or in combination with one or more of the first to eleventh aspects, a set of priority CPE start locations are placed before the reserved CPE start locations, or a set of priority CPE start locations are placed after the reserved CPE start locations.

[0147]

[0158] In a thirteenth aspect, alone or in combination with one or more of the first to twelfth aspects, a report is triggered to identify a candidate resource from among a plurality of candidate resources for selection based at least in part on a plurality of configured CPE start locations, wherein the report indicates a first value indicating that no reservation from another UE is detected in a first slot of the candidate resource, a second value indicating that a reservation from another UE is detected in the first slot of the candidate resource and there is no overlapping sub-channel associated with the candidate resource, or a third value indicating that a reservation from another UE is detected in the first slot of the candidate resource and there is overlap with respect to a sub-channel associated with the candidate resource.

[0148]

[0159] 11 illustrates example blocks of process 1100, in some aspects process 1100 may include additional, fewer, different, or differently arranged blocks than those illustrated in FIG 11. Additionally or alternatively, two or more of the blocks of process 1100 may be performed in parallel.

[0149]

[0160] 12 is a diagram of an example apparatus 1200 for wireless communication in accordance with the present disclosure. The apparatus 1200 may be a UE, or a UE may include the apparatus 1200. In some aspects, the apparatus 1200 includes a receiving component 1202 and a transmitting component 1204 that may communicate with each other (e.g., via one or more buses and / or one or more other components). As shown, the apparatus 1200 may communicate with another apparatus 1206 (such as a UE, a base station, or another wireless communication device) using the receiving component 1202 and the transmitting component 1204.

[0150]

[0161] In some aspects, apparatus 1200 may be configured to perform one or more operations described herein in connection with FIG. 9. Additionally or alternatively, apparatus 1200 may be configured to implement one or more processes described herein, such as process 1000 of FIG. 10. In some aspects, apparatus 1200 and / or one or more components illustrated in FIG. 12 may include one or more components of a UE described in connection with FIG. 2. Additionally or alternatively, one or more components illustrated in FIG. 12 may be implemented within one or more components described in connection with FIG. 2. Additionally or alternatively, one or more components of the set of components may be implemented at least in part as software stored in memory. For example, a component (or a portion of a component) may be implemented as instructions or code stored in a non-transitory computer-readable medium and executable by a controller or processor to perform the function or operation of the component.

[0151]

[0162] Receiving component 1202 may receive communications, such as reference signals, control information, data communications, or a combination thereof, from device 1206. Receiving component 1202 may provide the received communications to one or more other components of device 1200. In some aspects, receiving component 1202 may perform signal processing (such as filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, demapping, equalization, interference cancellation, or decoding, among other examples) on the received communications and provide the processed signals to one or more other components of device 1200. In some aspects, receiving component 1202 may include one or more antennas, a modem, a demodulator, a MIMO detector, a receive processor, a controller / processor, a memory, or a combination thereof, of a UE described in connection with FIG.

[0152]

[0163] The transmitting component 1204 may transmit communications, such as reference signals, control information, data communications, or a combination thereof, to the device 1206. In some aspects, one or more other components of the device 1200 may generate communications and provide the generated communications to the transmitting component 1204 for transmission to the device 1206. In some aspects, the transmitting component 1204 may perform signal processing (such as filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding, among other examples) on the generated communications and transmit the processed signals to the device 1206. In some aspects, the transmitting component 1204 may include one or more antennas, a modem, a modulator, a transmit MIMO processor, a transmit processor, a controller / processor, a memory, or a combination thereof, of a UE described in connection with FIG. 2. In some aspects, the transmitting component 1204 may be collocated with the receiving component 1202 within a transceiver.

[0153]

[0164] The receiving component 1202 can receive a configuration from a network node indicating one or more CPE origination locations. The transmitting component 1204 can transmit a sidelink transmission using a selected one of the one or more CPE origination locations based at least in part on the configuration received from the network node.

[0154]

[0165] The number and arrangement of components shown in Figure 12 is provided as an example. In practice, there may be additional, fewer, different, or differently arranged components than those shown in Figure 12. Furthermore, two or more of the components shown in Figure 12 may be implemented within a single component, or a single component shown in Figure 12 may be implemented as multiple distributed components. Additionally, or alternatively, a set of component(s) shown in Figure 12 may perform one or more functions that are described as being performed by another set of components shown in Figure 12.

[0155]

[0166] 13 is a diagram of an example apparatus 1300 for wireless communication in accordance with the present disclosure. The apparatus 1300 may be a network node, or a network node may include the apparatus 1300. In some aspects, the apparatus 1300 includes a receiving component 1302 and a transmitting component 1304 that may communicate with one another (e.g., via one or more buses and / or one or more other components). As shown, the apparatus 1300 may communicate with another apparatus 1306 (such as a UE, a base station, or another wireless communication device) using the receiving component 1302 and the transmitting component 1304.

[0156]

[0167] In some aspects, apparatus 1300 may be configured to perform one or more operations described herein in connection with FIG. 9. Additionally or alternatively, apparatus 1300 may be configured to implement one or more processes described herein, such as process 1100 of FIG. 11. In some aspects, apparatus 1300 and / or one or more components shown in FIG. 13 may include one or more components of a network node described in connection with FIG. 2. Additionally or alternatively, one or more components shown in FIG. 13 may be implemented within one or more components described in connection with FIG. 2. Additionally or alternatively, one or more components of a set of components may be implemented at least in part as software stored in memory. For example, a component (or a portion of a component) may be implemented as instructions or code stored in a non-transitory computer-readable medium and executable by a controller or processor to perform the function or operation of the component.

[0157]

[0168] The receiving component 1302 may receive communications, such as reference signals, control information, data communications, or a combination thereof, from the device 1306. The receiving component 1302 may provide the received communications to one or more other components of the device 1300. In some aspects, the receiving component 1302 may perform signal processing (such as filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, demapping, equalization, interference cancellation, or decoding, among other examples) on the received communications and may provide the processed signals to one or more other components of the device 1300. In some aspects, the receiving component 1302 may include one or more antennas, a modem, a demodulator, a MIMO detector, a receive processor, a controller / processor, a memory, or a combination thereof of the network nodes described with respect to FIG.

[0158]

[0169] The transmitting component 1304 may transmit communications, such as reference signals, control information, data communications, or a combination thereof, to the device 1306. In some aspects, one or more other components of the device 1300 may generate communications and provide the generated communications to the transmitting component 1304 for transmission to the device 1306. In some aspects, the transmitting component 1304 may perform signal processing (such as filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding, among other examples) on the generated communications and transmit the processed signals to the device 1306. In some aspects, the transmitting component 1304 may include one or more antennas, a modem, a modulator, a transmit MIMO processor, a transmit processor, a controller / processor, a memory, or a combination thereof, of the network nodes described with respect to FIG. 2. In some aspects, the transmitting component 1304 may be collocated with the receiving component 1302 within a transceiver.

[0159]

[0170] The transmitting component 1304 can transmit to the UE a configuration indicating one or more CPE origination locations, and sidelink transmissions using a selected one of the one or more CPE origination locations are based at least in part on the configuration.

[0160]

[0171] The number and arrangement of components shown in Figure 13 are provided as one example. In practice, there may be additional, fewer, different, or differently configured components than those shown in Figure 13. Furthermore, two or more of the components shown in Figure 13 may be implemented within a single component, or a single component shown in Figure 13 may be implemented as multiple distributed components. Additionally or alternatively, a set of component(s) shown in Figure 13 may perform one or more functions that are described as being performed by another set of components shown in Figure 13.

[0161]

[0172] The following provides a summary of several aspects of the disclosure.

[0162]

[0173] Aspect 1: A method of wireless communications performed by a user equipment (UE), the method including: receiving, from a network node, a configuration indicating one or more cyclic prefix extension (CPE) origination locations; and transmitting a sidelink transmission using a selected CPE origination location of the one or more CPE origination locations based at least in part on the configuration received from the network node.

[0163]

[0174] Aspect 2: The method of aspect 1, wherein the configuration is per resource pool.

[0164]

[0175] Aspect 3: The method of any one of aspects 1 to 2, wherein the configuration is associated with a mode 2 resource allocation.

[0165]

[0176] Aspect 4: The method of any one of aspects 1 to 3, wherein a single CPE origination location is configured, and the location of the single CPE origination location is pre-configured or indicated in the sidelink control information.

[0166]

[0177] Aspect 5: The method of any one of aspects 1 to 4, wherein multiple CPE origination locations are configured, and the locations of each of the multiple CPE origination locations are pre-configured or dynamically indicated via sidelink control information.

[0167]

[0178] Aspect 6: A method according to any of aspects 1 to 5, wherein the configuration indicates a location associated with a single CPE initiation location, or respective locations associated with multiple CPE initiation locations, or wherein the configuration indicates respective priorities associated with multiple CPE initiation locations.

[0168]

[0179] Aspect 7: The method of any of aspects 1-6, wherein the number of configured CPE start locations is based at least in part on a particular channel or signal associated with the sidelink.

[0169]

[0180] Aspect 8: The method of any of aspects 1 to 7, wherein a plurality of CPE start locations are configured, and the plurality of CPE start locations include one or more of a set of priority CPE start locations or reserved CPE start locations.

[0170]

[0181] Aspect 9: The method of aspect 8, wherein one of the set of priority CPE start locations or the reserved CPE start location is used based at least in part on a pre-configuration for a particular channel or signal associated with the sidelink.

[0171]

[0182] Aspect 10: The method of aspect 8, wherein use of the reserved CPE starting location is at least partially associated with resource allocation on a subset of available subchannels within a resource block set or within a set of resource block sets that is based at least in part on resource allocation across two or more resource block sets.

[0172]

[0183] Aspect 11: The method of aspect 8, wherein use of the reserved CPE starting location is associated at least in part with sidelink transmissions performed using the reserved resources.

[0173]

[0184] Aspect 12: The method of aspect 8, wherein use of the reserved CPE starting location is associated at least in part with detection of a reservation for a different transmission in the same slot from another UE, and resources are allocated for frequency division multiplexing with the different transmissions.

[0174]

[0185] Aspect 13: The method of aspect 8, wherein the set of priority CPE start locations is placed before the reserved CPE start locations, or the set of priority CPE start locations is placed after the reserved CPE start locations.

[0175]

[0186] Aspect 14: A report is triggered to identify a candidate resource from among a plurality of candidate resources for selection based at least in part on a plurality of configured CPE start locations, and the report is generated based on one of: a first value indicating that no reservation from another UE is detected in a first slot of the candidate resource; a second value indicating that a reservation from another UE is detected in the first slot of the candidate resource and that there is no overlapping sub-channel associated with the candidate resource; or a third value indicating that a reservation from another UE is detected in the first slot of the candidate resource and that there is an overlap for the sub-channel associated with the candidate resource; Showing, The method according to embodiment 8.

[0176]

[0187] Aspect 15: A method of wireless communications performed by a network node, comprising transmitting, to a user equipment (UE), a configuration indicating one or more cyclic prefix extension (CPE) origination locations, wherein sidelink transmissions using a selected one of the one or more CPE origination locations are based at least in part on the configuration.

[0177]

[0188] Aspect 16: An apparatus for wireless communication in a device, the apparatus comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform one or more methods of aspects 1 to 14.

[0178]

[0189] Aspect 17: A device for wireless communication, comprising: a memory; and one or more processors coupled to the memory, wherein the one or more processors are configured to perform one or more of the methods of aspects 1-14.

[0179]

[0190] Aspect 18: An apparatus for wireless communication, comprising at least one means for performing one or more of the methods of aspects 1-14.

[0180]

[0191] Aspect 19: A non-transitory computer-readable medium storing code for wireless communication, the code including instructions executable by a processor to implement one or more of the methods of aspects 1-14.

[0181]

[0192] Aspect 20: A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions including one or more instructions that, when executed by one or more processors of a device, cause the device to perform one or more methods of aspects 1-14.

[0182]

[0193] Aspect 21: An apparatus for wireless communication in a device, comprising: a processor; a memory coupled to the processor; and instructions stored in the memory, the instructions being executable by the processor to cause the apparatus to perform the method of aspect 15.

[0183]

[0194] Aspect 22: A device for wireless communication, comprising: a memory; and one or more processors coupled to the memory, wherein the one or more processors are configured to perform the method of aspect 15.

[0184]

[0195] Aspect 23: An apparatus for wireless communication, comprising at least one means for performing the method of aspect 15.

[0185]

[0196] Aspect 24: A non-transitory computer-readable medium storing code for wireless communication, the code including instructions executable by a processor to perform the method of aspect 15.

[0186]

[0197] Aspect 25: A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions including one or more instructions that, when executed by one or more processors of a device, cause the device to perform the method of aspect 15.

[0187]

[0198] The above disclosure provides illustration and description, but is not intended to be exhaustive or to limit the embodiments to the precise form disclosed. Modifications and variations may be made in light of the above disclosure or may be acquired from practice of the embodiments.

[0188]

[0199] As used herein, the term "component" is intended to be broadly construed as hardware and / or combinations of hardware and software. "Software" is intended to be broadly construed to mean, among other examples, instructions, instruction sets, code, code segments, program code, programs, subprograms, software modules, applications, software applications, software packages, routines, subroutines, objects, executable files, threads of execution, procedures, and / or functions, whether referred to as software, firmware, middleware, microcode, hardware description language, or otherwise. As used herein, a "processor" is implemented in hardware and / or a combination of hardware and software. It will be apparent 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 specialized control hardware or software code used to implement these systems and / or methods is not limiting. Thus, the operation and behavior of the systems and / or methods are described herein without reference to specific software code, with the understanding that those skilled in the art will be able to design software and hardware to implement the systems and / or methods based at least in part on the description herein.

[0189]

[0200] As used herein, "meeting a threshold" can refer to a value being 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., depending on the context.

[0190]

[0201] Although particular combinations of features are recited in the claims and / or disclosed herein, those combinations are not intended to limit the disclosure of various aspects. Many of these features can be combined in ways not specifically recited in the claims and / or disclosed herein. The disclosure of various aspects includes each dependent claim in combination with every other claim in the claim set. As used herein, phrases referring to "at least one of" a list of items refer to any combination of those items, including single members. As an example, "at least one of a, b, or c" is intended to encompass 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 permutation of a, b, and c).

[0191]

[0202] No element, act, or instruction used herein should be construed as essential or required unless expressly described as such. Also, as used herein, the articles "a" and "an" are intended to include one or more items and may be used interchangeably with "one or more." Furthermore, as used herein, the article "the" is intended to include one or more items referred to in connection with the article "the" and may be used interchangeably with "one or more." Furthermore, as used herein, the terms "set" and "group" are intended to include one or more items and may be used interchangeably with "one or more." Where only one item is intended, the phrase "only one" or similar language is used. Also, as used herein, terms such as "has," "have," and "having" are intended to be open-ended terms that do not limit the elements they modify (e.g., an element that "has" A can also have B). Furthermore, the phrase "based on" is intended to mean "based at least in part on," unless expressly stated otherwise. As used herein, the term "or" is also intended to be inclusive when used in a series, and may be used interchangeably with "and / or," except where expressly stated otherwise (e.g., when used in combination with "either" or "only one of").

Claims

1. 1. An apparatus for wireless communication in a user equipment (UE), comprising: Memory and one or more processors coupled to the memory, receiving a configuration from a network node indicating one or more cyclic prefix extension (CPE) starting locations; transmitting a sidelink transmission using a selected CPE origination location of the one or more CPE origination locations based at least in part on the configuration received from the network node; and one or more processors configured to: An apparatus comprising:

2. The apparatus of claim 1 , wherein the configuration is per resource pool.

3. The apparatus of claim 1 , wherein the configuration is associated with a Mode 2 resource allocation.

4. 2. The apparatus of claim 1, wherein a single CPE origination location is configured, and the location of the single CPE origination location is pre-configured or indicated in sidelink control information.

5. 2. The apparatus of claim 1, wherein a plurality of CPE origination locations are configured, the location of each of the plurality of CPE origination locations being pre-configured or dynamically indicated via sidelink control information.

6. 2. The apparatus of claim 1, wherein the configuration indicates a location associated with a single CPE start location, or respective locations associated with multiple CPE start locations, or the configuration indicates respective priorities associated with the multiple CPE start locations.

7. 10. The apparatus of claim 1, wherein the number of configured CPE starting locations is based at least in part on a particular channel or signal associated with a sidelink.

8. 2. The apparatus of claim 1, wherein a plurality of CPE start locations are configured, the plurality of CPE start locations comprising one or more of a set of priority CPE start locations or reserved CPE start locations.

9. 9. The apparatus of claim 8, wherein one of the set of priority CPE starting locations or the reserved CPE starting location is used based at least in part on a pre-configuration for a particular channel or signal associated with a sidelink.

10. 10. The apparatus of claim 8, wherein use of the reserved CPE starting location is at least partially associated with resource allocation on a subset of available subchannels within a resource block set, or within a set of resource block sets that is based at least in part on the resource allocation across two or more resource block sets.

11. 10. The apparatus of claim 8, wherein use of the reserved CPE starting location is at least partially associated with the sidelink transmission performed using reserved resources.

12. 10. The apparatus of claim 8, wherein use of the reserved CPE starting location is associated at least in part with detection of a reservation for a different transmission in the same slot from another UE, and resources are allocated for frequency division multiplexing with the different transmission.

13. 9. The apparatus of claim 8, wherein the set of priority CPE start locations is located before the reserved CPE start locations, or the set of priority CPE start locations is located after the reserved CPE start locations.

14. A report is triggered to identify a candidate resource from among a plurality of candidate resources for selection based at least in part on a plurality of configured CPE start locations, said report comprising: a first value indicating that no reservation from another UE has been detected in a first slot of the candidate resource; a second value indicating that a reservation from another UE has been detected in the first slot of the candidate resource and that there are no overlapping sub-channels associated with the candidate resource; or a third value indicating that a reservation from another UE has been detected in the first slot of the candidate resource and that there is an overlap for a subchannel associated with the candidate resource; Showing, 9. The apparatus of claim 8.

15. 1. An apparatus for wireless communication in a network node, comprising: Memory and one or more processors coupled to the memory, transmitting, to a user equipment (UE), a configuration indicating one or more cyclic prefix extension (CPE) origination locations, wherein sidelink transmissions using selected ones of the one or more CPE origination locations are based at least in part on the configuration; one or more processors configured to: An apparatus comprising:

16. 1. A method of wireless communication implemented by a user equipment (UE), comprising: receiving a configuration from a network node indicating one or more cyclic prefix extension (CPE) starting locations; transmitting a sidelink transmission using a selected CPE origination location of the one or more CPE origination locations based at least in part on the configuration received from the network node; and A method comprising:

17. The method of claim 16 , wherein the configuration is per resource pool.

18. The method of claim 16 , wherein the configuration is associated with a Mode 2 resource allocation.

19. 17. The method of claim 16, wherein a single CPE origination location is configured, and the location of the single CPE origination location is pre-configured or indicated in sidelink control information.

20. 17. The method of claim 16, wherein a plurality of CPE origination locations are configured, the location of each of the plurality of CPE origination locations being pre-configured or dynamically indicated via sidelink control information.

21. 17. The method of claim 16, wherein the configuration indicates a location associated with a single CPE start location, or respective locations associated with multiple CPE start locations, or the configuration indicates respective priorities associated with the multiple CPE start locations.

22. 17. The method of claim 16, wherein the number of configured CPE starting locations is based at least in part on a particular channel or signal associated with the sidelink.

23. 17. The method of claim 16, wherein a plurality of CPE start locations are established, the plurality of CPE start locations comprising one or more of a set of priority CPE start locations or reserved CPE start locations.

24. 24. The method of claim 23, wherein one of the set of priority CPE starting locations or the reserved CPE starting location is used based at least in part on a pre-configuration for a particular channel or signal associated with a sidelink.

25. 24. The method of claim 23, wherein use of the reserved CPE starting location is at least partially associated with resource allocation on a subset of available sub-channels within a resource block set, or within a set of resource block sets that is based at least in part on the resource allocation across two or more resource block sets.

26. 24. The method of claim 23, wherein use of the reserved CPE starting location is at least partially associated with the sidelink transmission performed using reserved resources.

27. 24. The method of claim 23, wherein use of the reserved CPE starting location is associated at least in part with detection of a reservation for a different transmission in the same slot from another UE, and resources are allocated for frequency division multiplexing with the different transmission.

28. 24. The method of claim 23, wherein the set of priority CPE start locations is positioned before the reserved CPE start locations, or the set of priority CPE start locations is positioned after the reserved CPE start locations.

29. A report is triggered to identify a candidate resource from among a plurality of candidate resources for selection based at least in part on a plurality of configured CPE start locations, said report comprising: a first value indicating that no reservation from another UE has been detected in a first slot of the candidate resource; a second value indicating that a reservation from another UE has been detected in the first slot of the candidate resource and that there are no overlapping sub-channels associated with the candidate resource; or a third value indicating that a reservation from another UE has been detected in the first slot of the candidate resource and that there is an overlap for a subchannel associated with the candidate resource; Showing, 24. The method of claim 23.

30. 1. A method of wireless communication implemented by a network node, comprising:

1. A method comprising: transmitting, to a user equipment (UE), a configuration indicating one or more Cyclic Prefix Extension (CPE) origination locations, wherein sidelink transmissions using selected ones of the one or more CPE origination locations are based at least in part on the configuration.

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