Sidelink feedback channel opportunity in set of resource blocks

Abstract

Various aspects of the present disclosure generally relate to wireless communications. In some aspects, a user equipment (UE) may receive physical sidelink shared channel (PSSCH) communications in a set of resource blocks (RBs). The UE may transmit a first physical sidelink feedback channel (PSFCH) communication for PSSCH communication in a first PSFCH opportunity of a plurality of PSFCH opportunities that are uniformly divided in the RB set. Numerous other aspects are described.

Description

Technical Field

[0001] All aspects of this disclosure relate to wireless communication in general, and to techniques and apparatus for timing the use of sidelink feedback channels in a set of resource blocks. Background Technology

[0002] Wireless communication systems are widely deployed to provide a variety of telecommunications services, such as telephone, video, data, messaging, and broadcasting. Typical wireless communication systems employ multiple access technologies that enable communication with multiple users by sharing available system resources (e.g., bandwidth, transmit power, etc.). Examples of such multiple access technologies include Code Division Multiple Access (CDMA) systems, Time Division Multiple Access (TDMA) systems, Frequency Division Multiple Access (FDMA) systems, Orthogonal Frequency Division Multiple Access (OFDMA) systems, Single Carrier Frequency Division Multiple Access (SC-FDMA) systems, Time Division Synchronous Code Division Multiple Access (TD-SCDMA) systems, and Long Term Evolution (LTE). LTE / LTE-Advanced is a set of enhancements to the Universal Mobile Telecommunications System (UMTS) mobile standard issued by the 3rd Generation Partnership Project (3GPP).

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

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

[0005] Some aspects described herein relate to a method for wireless communication performed by a user equipment (UE). The method may include receiving Physical Side Link Shared Channel (PSSCH) communication within a set of resource blocks (RBs). The method may include transmitting first PSSCH communication during a first PSSCH timing among a plurality of Physical Side Link Feedback Channel (PSFCH) timings evenly divided within the set of RBs.

[0006] Some aspects described herein relate to a method for wireless communication performed by a UE. This method may include receiving PSSCH communications from a set of RBs. The method may include transmitting PSSCH communications for PSSCH communications within PSSCH communications mapped to PSSCH communications, based at least in part on a source identifier (ID), the receiving UE ID, the number of PSFCH times in the RB set, and the time index of the PSFCH times.

[0007] Some aspects described herein relate to a method for wireless communication performed by a UE. This method may include receiving PSSCH communication. This method may also include transmitting PSSCH communication in a dedicated PRB resource having a guard band located at the edge of a common physical resource block (PRB).

[0008] Some aspects described herein relate to a UE for wireless communication. The UE may include one or more memories and one or more processors coupled to the one or more memories. The one or more processors may be configured individually or collectively to receive PSSCH communications in a set of RBs. The one or more processors may be configured individually or collectively to transmit a first PSFCH communication for PSSCH communication in a first PSFCH timing of a plurality of PSFCH timings evenly divided in the set of RBs.

[0009] Some aspects described herein relate to a UE for wireless communication. The UE may include one or more memories and one or more processors coupled to the one or more memories. The one or more processors may be configured individually or collectively to receive PSSCH communications from a set of Resource Blocks (RBs). The one or more processors may be configured individually or collectively to transmit PSFCH communications for PSSCH communications in PSFCH times mapped to PSSCH communications, based at least in part on a source ID, a receiving UE ID, the number of PSFCH times in the RB set, and a time index of the PSFCH times.

[0010] Some aspects described herein relate to a UE for wireless communication. The UE may include one or more memories and one or more processors coupled to the one or more memories. The one or more processors may be configured individually or collectively to receive PSSCH communications. The one or more processors may be configured individually or collectively to transmit PSFCH communications in dedicated PRB resources having guard bands located at the edge of a common PRB.

[0011] Some aspects described herein relate to a non-transitory computer-readable medium storing a set of instructions for wireless communication by a UE. When executed by one or more processors of the UE, the set of instructions enables the UE to receive PSSCH communications from a set of RBs. When executed by one or more processors of the UE, the set of instructions enables the UE to transmit a first PSSCH communication for PSSCH communication in a first PSSCH timing among a plurality of PSFCH timings evenly divided within the set of RBs.

[0012] Some aspects described herein relate to a non-transitory computer-readable medium storing a set of instructions for wireless communication by a UE. When executed by one or more processors of the UE, the set of instructions enables the UE to receive PSSCH communications from a set of RBs. When executed by one or more processors of the UE, the set of instructions enables the UE to transmit PSSCH communications for PSSCH communications within PSSCH communications mapped to PSSCH communications, based at least in part on a source ID, a receiving UE ID, the number of PSFCH opportunities in the RB set, and an opportunity index of the PSFCH opportunities.

[0013] Some aspects described herein relate to a non-transitory computer-readable medium storing a set of instructions for wireless communication by a UE. When executed by one or more processors of the UE, the set of instructions enables the UE to receive PSSCH communication. When executed by one or more processors of the UE, the set of instructions enables the UE to transmit PSFCH communication in a dedicated PRB resource having a guard band located at the edge of a common PRB.

[0014] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include components for receiving PSSCH communications within a set of RBs. The apparatus may also include components for transmitting a first PSFCH communication for PSSCH communication during a first PSFCH timing of a plurality of PSFCH timings evenly divided within the set of RBs.

[0015] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include components for receiving PSSCH communications from a set of RBs. The apparatus may also include components for transmitting PSFCH communications for PSSCH communications within PSFCH times mapped to PSSCH communications, based at least in part on a source ID, a receiving user equipment ID, the number of PSFCH times in the RB set, and a time index of the PSFCH times.

[0016] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include components for receiving PSSCH communications. The apparatus may also include components for transmitting PSFCH communications in a dedicated PRB resource having a guard band located at the edge of a public PRB.

[0017] The entirety of the categories includes methods, apparatus, systems, computer program products, non-transitory computer-readable media, UEs, base stations, network entities, network nodes, wireless communication devices, and / or processing systems as fully described herein with reference to the accompanying drawings and description and illustrated as illustrated in the drawings and description.

[0018] The features and technical advantages of the examples according to this disclosure have been summarized rather extensively above in order to better understand the detailed description below. Additional features and advantages will be described below. The disclosed concepts and specific examples can be readily used as the basis for modifying or designing other structures for achieving the same purpose as this disclosure. Such equivalent constructions do not depart from the scope of the appended claims. The characteristics of the concepts disclosed herein, in both their organization and manner of operation, and the associated advantages, will be better understood by considering the following description in conjunction with the accompanying drawings. Each of the drawings provided is for illustrative and descriptive purposes and not as a definition of limitation of the claims.

[0019] While aspects are described herein by way of example, those skilled in the art will understand that such aspects can be implemented in many different arrangements and scenarios. The techniques described herein can be implemented using different platform types, devices, systems, shapes, sizes, and / or package arrangements. For example, some aspects can be implemented via integrated chip implementations or other devices based on non-modular components (e.g., end-user equipment, vehicles, communication equipment, computing devices, industrial equipment, retail / shopping devices, medical devices, and / or artificial intelligence devices). Aspects can be implemented in chip-level components, modular components, non-modular components, non-chip-level components, device-level components, and / or system-level components. Devices incorporating the described aspects and features may include additional components and features for implementing and practicing the claimed and described aspects. For example, the transmission and reception of wireless signals may include one or more components for analog and digital purposes (e.g., hardware components including antennas, radio frequency (RF) chains, power amplifiers, modulators, buffers, processors, interleavers, adders, and / or summers). The aspects described herein are intended to be practiced in a wide variety of devices, components, systems, distributed arrangements, and / or end-user equipment of various sizes, shapes, and configurations. Attached Figure Description

[0020] To gain a full understanding of the foregoing features of this disclosure, a more specific description of the invention, briefly outlined above, can be obtained by referring to various aspects, some of which are illustrated in the accompanying drawings. However, it should be noted that the drawings illustrate only certain typical aspects of this disclosure and are therefore not to be considered as limiting its scope, as other equally valid aspects are permissible in this description. The same reference numerals in different drawings may identify the same or similar elements.

[0021] Figure 1 This is a diagram illustrating an example of a wireless network according to the present disclosure.

[0022] Figure 2 This is a diagram illustrating an example of communication between a network node and a user equipment (UE) in a wireless network according to the present disclosure.

[0023] Figure 3 This is a diagram illustrating an example of sidelink communication according to this disclosure.

[0024] Figure 4 This is a diagram illustrating examples of sidelink communication and access link communication according to this disclosure.

[0025] Figure 5 This is a diagram illustrating an example of selecting sidelink resources according to this disclosure.

[0026] Figure 6This is a diagram illustrating an example of the timing of the Physical Side Link Feedback Channel (PSFCH) as defined in this disclosure.

[0027] Figure 7 This is a diagram illustrating an example of sending PSFCH communication according to this disclosure.

[0028] Figure 8 This is a diagram illustrating an example of a PSFCH timing mapping according to this disclosure.

[0029] Figure 9 This is a diagram illustrating an example of sending PSFCH communication according to this disclosure.

[0030] Figure 10 This is a diagram illustrating an example of a protected band resource element (RE) according to this disclosure.

[0031] Figure 11 This is a diagram illustrating an example of a protection band according to this disclosure.

[0032] Figure 12 This is a diagram illustrating an example of a protected band resource element (RE) according to this disclosure.

[0033] Figure 13 This is a diagram illustrating an example of transmitting PSFCH communication using a guard band according to this disclosure.

[0034] Figure 14 This is a diagram illustrating an example process performed, for example, at a UE or a device of a UE, according to this disclosure.

[0035] Figure 15 This is a diagram illustrating an example process performed, for example, at a UE or a device of a UE, according to this disclosure.

[0036] Figure 16 This is a diagram illustrating an example process performed, for example, at a UE or a device of a UE, according to this disclosure.

[0037] Figure 17 This is a diagram of an example device for wireless communication according to the present disclosure. Detailed Implementation

[0038] The various aspects involve wireless communication as a whole, and more specifically, sidelink communication. Some aspects more specifically involve a first User Equipment (UE) sending communication to a second UE and receiving feedback from the second UE. After the first UE sends Physical Sidelink Shared Channel (PSSCH) communication, multiple Physical Sidelink Feedback Channel (PSFCH) opportunities (timings) may exist for transmission. Different PSFCH timings can be mapped to different resource sets. PSFCH resource sets may include physical resource block (PRB) sets or resource block (RB) sets. PSFCH timings in different RB sets may not contribute to the use and continuation of channel occupancy time. In some aspects, PSFCH timings may reside within the same RB set occupied by PSSCH communication. However, how to partition PSFCH resource pools for multiple PSFCH timings within the same RB set has not yet been specified.

[0039] Based on the various aspects described herein, different PSFCH timings can be frequency-division multiplexed (FDM) and uniformly divided within the PSFCH PRBs of each RB set. PSFCH timings can be uniformly divided by evenly allocating frequency bandwidths or PRBs among the PSFCH timings in an RB set that is the same set of RBs in which PSSCH communication is received. Each PSFCH timing can have the same bandwidth or number of PRBs.

[0040] Specific aspects of the subject matter described in this disclosure can be implemented to achieve one or more of the following potential advantages. In some examples, the UE can optimize PSFCH resources by uniformly allocating PSFCH timings within the time slots of the RB set (the same RB set for PSFCH communication). Optimizing PSFCH resources saves signaling resources.

[0041] Various aspects of this disclosure are described more fully below with reference to the accompanying drawings. However, this disclosure may be embodied in many different forms and should not be construed as limited to any particular structure or function presented throughout this disclosure. Rather, these aspects are provided so that this disclosure will be thorough and complete, and will fully convey the scope of this disclosure to those skilled in the art. Those skilled in the art will appreciate that the scope of this disclosure is intended to cover any aspect of this disclosure disclosed herein, whether implemented independently or in combination with any other aspect of this disclosure. For example, any number of aspects set forth herein may be used to implement an apparatus or practice. Furthermore, the scope of this disclosure is intended to cover such apparatuses or methods practiced using structures, functionalities, or structures and functionalities other than or different from the various aspects of the disclosure set forth herein. It should be understood that any aspect of the disclosure herein may be embodied by one or more elements of the present claims.

[0042] Various devices and techniques will now be used to illustrate several aspects of a telecommunications system. These devices and techniques will be described in detail below and illustrated in the accompanying drawings by various blocks, modules, components, circuits, steps, processes, or algorithms (collectively, “elements”). These elements can be implemented using hardware, software, or a combination thereof. Whether such elements are implemented as hardware or software depends on the specific application and the design constraints imposed on the system as a whole.

[0043] Although terms generally associated with 5G or New Radio (NR) Radio Access Technology (RAT) may be used herein to describe aspects, aspects of this disclosure may be applied to other RATs, such as 3G RAT, 4G RAT and / or 5G and later (e.g., 6G) RATs.

[0044] Figure 1 This is a diagram illustrating an example of a wireless network 100 according to the present disclosure. The wireless network 100 may be a 5G (e.g., NR) network and / or a 4G (e.g., LTE) network, or may include elements of a 5G (e.g., NR) network and / or elements of a 4G (e.g., LTE) network, etc. The wireless network 100 may include one or more network nodes 110 (shown as network node 110a, network node 110b, network node 110c, and network node 110d), one or more UEs 120 (shown as UE 120a, UE 120b, UE 120c, UE 120d, and UE 120e), and / or other entities. Network node 110 is a network node that communicates with UE 120. As shown, network node 110 may include one or more network nodes. In some respects, network node 110 can 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 can be a decomposed network node (sometimes referred to as a decomposed base station), meaning that network node 110 is configured to utilize a protocol stack that is physically or logically distributed among two or more nodes (such as one or more central units (CUs), one or more distributed units (DUs), or one or more radio units (RUs)).

[0045] In some examples, network node 110 is or includes network nodes (such as RUs) that communicate with UE 120 via a radio access link. In some examples, network node 110 is or includes network nodes (such as DUs) that communicate with other network nodes 110 via a fronthaul or midhaul link. In some examples, network node 110 is or includes network nodes (such as CUs) that communicate with other network nodes 110 via a midhaul link or with the core network via a backhaul link. In some examples, network node 110 (such as aggregated network node 110 or decomposed network node 110) may include multiple network nodes, such as one or more RUs, one or more CUs, and / or one or more DUs. Network node 110 may include, for example, NR base stations, LTE base stations, Node Bs, eNBs (e.g., in 4G), gNBs (e.g., in 5G), access points, Transmit / Receive Points (TRPs), DUs, RUs, CUs, network mobility elements, core network nodes, network elements, network equipment, RAN nodes, or combinations thereof. In some examples, network nodes 110 can interconnect with each other or to one or more other network nodes 110 in the wireless network 100 using any suitable transport network through various types of fronthaul interfaces, midhaul interfaces, and / or backhaul interfaces (such as direct physical connections, air interfaces, or virtual networks).

[0046] In some examples, network node 110 may provide communication coverage for a specific geographic area. In the 3rd Generation Partnership Project (3GPP), depending on the context of terminology use, the term "cell" may refer to the coverage area of ​​network node 110 and / or the network node subsystem serving that coverage area. Network node 110 may provide communication coverage for macrocells, picocells, femtocells, and / or another type of cell. A macrocell may cover a relatively large geographic area (e.g., a radius of several kilometers) and may allow unrestricted access by UE 120 with a service subscription. A picocell may cover a relatively small geographic area and may allow unrestricted access by UE 120 with a service subscription. A femtocell may cover a relatively small geographic area (e.g., a home) and may allow restricted access by UE 120 associated with the femtocell (e.g., UE 120 in a Closed Subscriber Group (CSG)). Network node 110 used for macrocells may be referred to as a macro network node. Network node 110 used for picocells may be referred to as a pico network node. The network node 110 used for femtocells can be referred to as a femtocell network node or a home network node. Figure 1In the example shown, network node 110a can be a macro network node for macro cell 102a, network node 110b can be a pico network node for pico cell 102b, and network node 110c can be a femto network node for femto cell 102c. Network nodes can support one or more (e.g., three) cells. In some examples, cells may not necessarily be stationary, and the geographical area of ​​the cell may move depending on the location of a mobile network node 110 (e.g., a mobile network node).

[0047] In some aspects, the term "base station" or "network node" may refer to an aggregated base station, a decomposed base station, an integrated access and backhaul (IAB) node, a relay node, or one or more components thereof. For example, in some aspects, "base station" or "network node" may refer to a CU, DU, RU, a near real-time (near RT) RAN intelligent controller (RIC), or a non-real-time (non-RT) RIC, or a combination thereof. In some aspects, the term "base station" or "network node" may refer to a device configured to perform one or more functions (such as those described herein in conjunction with network node 110). In some aspects, the term "base station" or "network node" may refer to multiple devices configured to perform one or more functions. For example, in some distributed systems, each of multiple different devices (which may be located in the same geographical location or different geographical locations) may be configured to perform at least a portion of a function, or to repeatedly perform at least a portion of that function, and the term "base station" or "network node" may refer to any one or more of these different devices. In some aspects, the term "base station" or "network node" may refer to one or more virtual base stations or one or more virtual base station functions. In some respects, two or more base station functions can be instantiated on a single device. In some respects, the term "base station" or "network node" may refer to one base station function rather than another. In this way, a single device may include more than one base station.

[0048] Wireless network 100 may include one or more relay stations. A relay station is a network node that can receive data transmissions from upstream nodes (e.g., network node 110 or UE 120) and transmit data to downstream nodes (e.g., UE 120 or network node 110). A relay station may be a UE 120 that can relay transmissions for other UE 120s. Figure 1 In the example shown, network node 110d (e.g., a relay network node) can communicate with network node 110a (e.g., a macro network node) and UE 120d to facilitate communication between network node 110a and UE 120d. The network node 110 for relay communication may be referred to as a relay station, relay base station, relay network node, relay node, relay, etc.

[0049] The wireless network 100 can be a heterogeneous network, comprising different types of network nodes 110, such as macro network nodes, pico network nodes, femto network nodes, and relay network nodes. These different types of network nodes 110 may have different transmit power levels, different coverage areas, and / or different effects on interference in the wireless network 100. In some respects, macro network nodes may have high transmit power levels (e.g., 5 watts to 40 watts), while pico network nodes, femto network nodes, and relay network nodes may have lower transmit power levels (e.g., 0.1 watts to 2 watts).

[0050] Network controller 130 may be coupled to or communicate with a group of network nodes 110, and may provide coordination and control for these network nodes 110. Network controller 130 may communicate with network nodes 110 via a backhaul or midhaul link. Network nodes 110 may also communicate directly with each other, or indirectly via a wireless or wired backhaul link. In some aspects, network controller 130 may be a CU or a core network device, or may include a CU or a core network device.

[0051] UE 120 may be distributed throughout the wireless network 100, and each UE 120 may be stationary or mobile. UE 120 may include, for example, access terminals, terminals, mobile stations, and / or subscriber units. UE 120 may be a cellular phone (e.g., a smartphone), a personal digital assistant (PDA), a wireless modem, a wireless communication device, a handheld device, a laptop computer, a cordless phone, a wireless local loop (WLL) station, a tablet computer, a camera, a gaming device, a netbook, a smartbook, an ultrabook, a medical device, a biometric device, a wearable device (e.g., a smartwatch, smart clothing, smart glasses, a smart wristband, smart jewelry (e.g., a smart ring or smart bracelet)), an entertainment device (e.g., a music device, a video device, and / or a satellite radio), a vehicle component or sensor, a smart meter / sensor, industrial manufacturing equipment, a GPS device, a UE function of a network node, and / or any other suitable device configured to communicate via wireless or wired media.

[0052] Some UEs 120 may be considered machine-type communication (MTC) or evolved or enhanced machine-type communication (eMTC) UEs. MTC UEs and / or eMTC UEs may include, for example, robots, unmanned aerial vehicles, remote devices, sensors, instruments, monitors, and / or location tags that can communicate with network nodes, another device (e.g., a remote device), or some other entity. Some UEs 120 may be considered Internet of Things (IoT) devices and / or may be implemented as NB-IoT (Narrowband IoT) devices. Some UEs 120 may be considered customer premises equipment. UEs 120 may be included within a housing that houses the components of the UE 120, such as processor components and / or memory components. In some examples, the processor components and memory components may be coupled together. In some aspects, the processor components (e.g., one or more processors) and memory components (e.g., memory) may be operatively coupled, communicatively coupled, electronically coupled, and / or electrically coupled.

[0053] Generally, any number of wireless networks 100 can be deployed in a given geographical area. Each wireless network 100 can support a specific RAT and can operate on one or more frequencies. A RAT may be referred to as a radio technology, air interface, etc. A frequency may be referred to as a carrier, frequency channel, etc. Each frequency in a given geographical area can support a single RAT to avoid interference between wireless networks using different RATs. In some cases, NR or 5G RAT networks can be deployed.

[0054] In some examples, two or more UEs 120 (e.g., shown as UE 120a and UE 120e) may communicate directly using one or more sidelink channels (e.g., without using network node 110 as an intermediary device to communicate with each other). For example, UE 120 may communicate using peer-to-peer (P2P) communication, device-to-device (D2D) communication, vehicle-to-everything (V2X) protocols (e.g., which may include vehicle-to-vehicle (V2V) protocols, vehicle-to-infrastructure (V2I) protocols, or vehicle-to-pedestrian (V2P) protocols) and / or mesh networks. In such examples, UE 120 may perform scheduling operations, resource selection operations, and / or other operations described elsewhere herein as being performed by network node 110.

[0055] Devices of Wireless Network 100 can communicate using the electromagnetic spectrum, which can be subdivided into various categories, bands, channels, etc., according to frequency or wavelength. In some respects, devices of Wireless Network 100 can communicate using one or more operating frequency bands. In 5G NR, two initial operating frequency bands have been designated as frequency ranges FR1 (410MHz to 7.125GHz) and FR2 (24.25GHz to 52.6GHz). It should be understood that although a portion of FR1 is greater than 6GHz, FR1 is generally (interchangeably) referred to as the “sub-6GHz” band in various documents and articles. Similar naming issues sometimes occur with FR2, which is generally (interchangeably) referred to as the “millimeter wave” band in documents and articles, although this is different from the Extremely High Frequency (EHF) band (30GHz to 300GHz) designated as a “millimeter wave” band by the International Telecommunication Union (ITU).

[0056] The frequencies between FR1 and FR2 are generally referred to as mid-band frequencies. Recent 5G NR studies have identified the operating bands used for these mid-band frequencies as the frequency range designation FR3 (7.125 GHz to 24.25 GHz). Bands falling within FR3 can inherit FR1 and / or FR2 characteristics, thus effectively extending the features of FR1 and / or FR2 to mid-band frequencies. Furthermore, higher frequency bands are currently being explored to extend 5G NR operation beyond 52.6 GHz. In some respects, three higher operating frequency bands have been identified as the frequency range designations FR4a or FR4-1 (52.6 GHz to 71 GHz), FR4 (52.6 GHz to 114.25 GHz), and FR5 (114.25 GHz to 300 GHz). Each of these higher frequency bands falls within the EHF band.

[0057] Considering the examples above, unless otherwise specifically stated, it should be understood that when the term "below 6 GHz" is used herein, it can broadly refer to frequencies below 6 GHz, within FR1, or including intermediate frequency band frequencies. Furthermore, unless otherwise specifically stated, it should be understood that when the term "millimeter wave" is used herein, it can broadly refer to frequencies that can include intermediate frequency band frequencies, within FR2, FR4, FR4-a, or FR4-1 and / or FR5, or within the EHF band. Modifications to frequencies included in these operating frequency bands (e.g., FR1, FR2, FR3, FR4, FR4-a, FR4-1, and / or FR5) are contemplated, and the techniques described herein are applicable to those modified frequency ranges.

[0058] In some aspects, the UE (e.g., UE 120) may include a communication manager 140. As described in more detail elsewhere herein, the communication manager 140 may receive PSSCH communications from a set of RBs. The communication manager 140 may transmit a first PSSCH communication for PSSCH communication in a first PSSCH time slot among a plurality of PSFCH time slots that are evenly divided in the set of RBs.

[0059] In some respects, the communication manager 140 can receive PSSCH communications from the RB set. The communication manager 140 can send physical PSSCH communications for PSSCH communications in PSSCH communications in PSSCH communications mapped to PSSCH communications, based at least in part on the source identifier (ID), the receiving UE ID, the number of PSFCH times in the RB set, and the time index of the PSFCH times.

[0060] In some respects, the communication manager 140 can receive PSSCH communications. The communication manager 140 can also transmit PSFCH communications in a dedicated PRB resource having a guard band at the edge of a public PRB. Additionally or alternatively, the communication manager 140 can perform one or more other operations described herein.

[0061] As indicated above, Figure 1 This is provided as an example. Other examples may be provided in conjunction with [the relevant information]. Figure 1 The examples described are different.

[0062] Figure 2 This is a diagram illustrating example 200 of communication between network node 110 and UE 120 in a wireless network 100 according to this disclosure. Network node 110 may be equipped with a set of antennas 234a to 234t, such as... T One antenna ( T ≥1). The UE 120 may be equipped with a set of antennas 252a to 252r, such as R One antenna ( R ≥1). Network node 110 of Example 200 includes one or more radio frequency components, such as antenna 234 and modem 232. In some examples, network node 110 may include an interface, communication components, or another component that facilitates communication with UE 120 or another network node. Some network node 110 may not include radio frequency components that facilitate direct communication with UE 120, such as one or more CUs or one or more DUs.

[0063] At network node 110, transmitting processor 220 can receive data from data source 212 intended for use by UE 120 (or a group of UEs 120). Transmitting processor 220 can select one or more modulation and decoding schemes (MCS) for UE 120 based at least in part on one or more Channel Quality Indicators (CQIs) received from UE 120. Network node 110 can process (e.g., encode and modulate) the data for UE 120 based at least in part on the MCS selected for UE 120, and can provide data symbols for UE 120. Transmitting processor 220 can process system information (e.g., for Semi-Static Resource Partitioning Information (SRPI)) and control information (e.g., CQI requests, grants, and / or upper-layer signaling), and provide overhead symbols and control symbols. Transmitting processor 220 can generate reference symbols for reference signals (e.g., Cell-Specific Reference Signal (CRS) or Demodulation Reference Signal (DMRS)) and synchronization signals (e.g., Primary Synchronization Signal (PSS) or Secondary Synchronization Signal (SSS)). The transmit (TX) multiple-input multiple-output (MIMO) processor 230 can perform spatial processing (e.g., pre-decoding) on ​​data symbols, control symbols, overhead symbols, and / or reference symbols where applicable, and can transmit a set of output symbol streams (e.g., T Each output symbol stream is provided to a corresponding set of modems 232 (e.g., ...). T Each modem 232a to 232t (shown as modems 232a to 232t) can, in some respects, be provided to the modulator component of modem 232 (shown as MOD). Each modem 232 can use a corresponding modulator component to process the corresponding output symbol stream (e.g., for OFDM) to obtain an output sample stream. Each modem 232 can also use a corresponding modulator component to process the output sample stream (e.g., convert to analog, amplify, filter, and / or up-convert) to obtain a downlink signal. Modems 232a to 232t can be transmitted via a corresponding set of antennas 234 (e.g., T Each antenna (shown as antennas 234a to 234t) is used to transmit a set of downlink signals (e.g., ...). T (One downlink signal).

[0064] At UE 120, a set of antennas 252 (shown as antennas 252a to 252r) can receive downlink signals from network node 110 and / or other network nodes 110 and can transmit a set of received signals (e.g., R The received signals are provided to a group of modems 254 (e.g., RA modem (shown as modems 254a to 254r). In some aspects, each received signal can be provided to the demodulator component of modem 254 (shown as DEMOD). Each modem 254 can use a corresponding demodulator component to condition (e.g., filter, amplify, down-convert, and / or digitize) the received signal to obtain an input sample. Each modem 254 can use the demodulator component to further process the input sample (e.g., for OFDM) to obtain a received symbol. MIMO detector 256 can obtain the received symbols from modem 254, perform MIMO detection on the received symbols where applicable, and provide the detected symbols. Receiver processor 258 can process (e.g., demodulate and decode) the detected symbols, provide the decoded data for UE 120 to data sink 260, and provide the decoded control information and system information to controller / processor 280. The term "controller / processor" can refer to one or more controllers, one or more processors, or a combination thereof. The channel processor can determine parameters such as the Reference Signal Received Power (RSRP), Received Signal Strength Indicator (RSSI), Reference Signal Received Quality (RSRQ), and / or CQI. In some examples, one or more components of the UE 120 may be included in the housing 284.

[0065] Network controller 130 may include communication unit 294, controller / processor 290, and memory 292. Network controller 130 may include one or more devices, for example, in a core network. Network controller 130 may communicate with network node 110 via communication unit 294.

[0066] One or more antennas (e.g., antennas 234a to 234t and / or antennas 252a to 252r) may include one or more antenna panels, one or more antenna groups, one or more sets of antenna elements and / or one or more antenna arrays, etc., or may be included within one or more antenna panels, one or more antenna groups, one or more sets of antenna elements and / or one or more antenna arrays, etc. Antenna panels, antenna groups, sets of antenna elements and / or antenna arrays may include one or more antenna elements (within a single housing or multiple housings), a set of coplanar antenna elements, a set of non-coplanar antenna elements and / or coupled to one or more transmitting and / or receiving components (such as...). Figure 2 One or more antenna elements (one or more components in a )

[0067] On the uplink, at UE 120, the transmit processor 264 can receive and process data from data source 262 and control information from controller / processor 280 (e.g., for reporting including RSRP, RSSI, RSRQ, and / or CQI). The transmit processor 264 can generate reference symbols for one or more reference signals. The symbols from the transmit processor 264 can be pre-decoded by the TX MIMO processor 266 where applicable, further processed by the modem 254 (e.g., for DFT-s-OFDM or CP-OFDM), and transmitted to network node 110. In some examples, the modem 254 of UE 120 may include a modulator and demodulator. In some examples, UE 120 includes a transceiver. The transceiver may include any combination of antenna 252, modem 254, MIMO detector 256, receive processor 258, transmit processor 264, and / or TX MIMO processor 266. The transceiver may be used by a processor (e.g., controller / processor 280) and memory 282 to execute this document (e.g., reference). Figures 3 to 17 ( ) any aspect of the methods described in the method.

[0068] At network node 110, uplink signals from UE 120 and / or other UEs may be received by antenna 234, processed by modem 232 (e.g., demodulator component of modem 232 (shown as DEMOD)), detected by MIMO detector 236, and further processed by receiver processor 238 to obtain decoded data and control information transmitted by UE 120. Receiver processor 238 may provide the decoded data to data sink 239 and the decoded control information to controller / processor 240. Network node 110 may include communication unit 244 and may communicate with network controller 130 via communication unit 244. Network node 110 may include scheduler 246 to schedule one or more UEs 120 for downlink and / or uplink communication. In some examples, modem 232 of network node 110 may include modulator and demodulator. In some examples, network node 110 includes transceiver. The transceiver may include any combination of antenna 234, modem 232, MIMO detector 236, receive processor 238, transmit processor 220, and / or TX MIMO processor 230. The transceiver may be used by a processor (e.g., controller / processor 240) and memory 242 to execute this document (e.g., references). Figures 3 to 17 ( ) any aspect of the methods described in the method.

[0069] As described in more detail elsewhere in this document, the controller / processor of the network entity (e.g., controller / processor 240 of network node 110), controller / processor 280 of UE 120, and / or Figure 2 Any other component may perform one or more techniques associated with the timing of PSFCH usage. In some respects, the controller / processor 240 of network node 110, the controller / processor 280 of UE 120, and / or Figure 2 Any other component can execute or direct, for example Figure 14 Process 1400 Figure 15 Process 1500 Figure 16 The operation of process 1600 and / or other processes as described herein. Memory 242 and memory 282 may store data and program code for network node 110 and UE 120, respectively. In some examples, memory 242 and / or memory 282 may include a non-transitory computer-readable medium storing one or more instructions (e.g., code and / or program code) for wireless communication. In some aspects, the one or more instructions may cause the one or more processors, UE 120 and / or network node 110 to perform or direct, for example, when executed by one or more processors of network node 110 and / or UE 120 (e.g., direct execution, or execution after compilation, transformation and / or interpretation). Figure 14 Process 1400 Figure 15 Process 1500 Figure 16 The operation of process 1600 and / or other processes as described herein. In some examples, the execution instructions may include run instructions, transform instructions, compile instructions and / or interpret instructions, etc.

[0070] In some aspects, the UE (e.g., UE 120) includes: components for receiving PSSCH communications in a set of RBs; and / or components for transmitting a first PSFCH communication for PSSCH communication in a first PSFCH timing among a plurality of PSFCH timings evenly divided in the set of RBs. Components for the UE to perform the operations described herein may include, for example, one or more of the following: a communication manager 140, an antenna 252, a modem 254, a MIMO detector 256, a receive processor 258, a transmit processor 264, a TX MIMO processor 266, a controller / processor 280, or a memory 282.

[0071] In some aspects, the UE (e.g., UE 120) includes: components for receiving PSSCH communications in a set of RBs; and / or components for transmitting PSFCH communications for PSSCH communications in PSFCH times mapped to PSSCH communications, based at least in part on the source ID, the receiving UE ID, the number of PSFCH times in the set of RBs, and the time index of the PSFCH times. Components for the UE to perform the operations described herein may include, for example, one or more of the following: a communications manager 140, an antenna 252, a modem 254, a MIMO detector 256, a receive processor 258, a transmit processor 264, a TX MIMO processor 266, a controller / processor 280, or a memory 282.

[0072] In some aspects, the UE (e.g., UE 120) includes: components for receiving PSSCH communications; and / or components for transmitting PSFCH communications in dedicated PRB resources having guard bands located at the edge of a common PRB. Components enabling the UE to perform the operations described herein may include one or more of, for example, a communications manager 140, an antenna 252, a modem 254, a MIMO detector 256, a receive processor 258, a transmit processor 264, a TX MIMO processor 266, a controller / processor 280, or a memory 282.

[0073] In some aspects, individual processors can be described as performing all functions executed by the one or more processors. In some aspects, the one or more processors can jointly perform a set of functions. In some aspects, a first set of processors(one or more) of the one or more processors can be described as performing a first function executed by the one or more processors, and a second set of processors(one or more) of the one or more processors can be described as performing a second function executed by the one or more processors. The first set of processors and the second set of processors can be the same set of processors or can be different sets of processors. The reference to "one or more processors" should be understood as referring to a combination of... Figure 2 The processor described refers to any one or more processors. The reference to "one or more memories" should be understood to refer to any one or more memories of the corresponding device, such as those in conjunction with... Figure 2 The memory described. In some respects, it is described that functions performed by one or more memories can be performed by the same subset of one or more memories or by different subsets of one or more memories.

[0074] Although Figure 2The boxes in the diagram are illustrated as different components, but the functions described above with respect to these boxes may be implemented in a single hardware, software, or combined component, or in various combinations of components. In some respects, the functions described with respect to the transmit processor 264, the receive processor 258, and / or the TX MIMO processor 266 may be performed by or under the control of the controller / processor 280.

[0075] As indicated above, Figure 2 This is provided as an example. Other examples may be provided in conjunction with [the relevant information]. Figure 2 The examples described are different.

[0076] The deployment of communication systems such as 5G NR systems can be arranged in a variety of ways using various components or parts. In a 5G NR system or network, network nodes, network entities, network mobility elements, RAN nodes, core network nodes, network elements, base stations, or network equipment can be implemented in a converged or decomposed architecture. In some aspects, base stations (such as Node B (NB), evolved NB (eNB), NR base stations, 5G NB, access points (APs), TRPs, or cells, etc.) or one or more units (or components) performing base station functions can be implemented as converged base stations (also known as standalone base stations or monolithic base stations) or decomposed base stations. A "network entity" or "network node" can refer to a decomposed base station or one or more units of a decomposed base station (such as one or more CUs, one or more DUs, one or more RUs, or combinations thereof).

[0077] Aggregated base stations (e.g., aggregated network nodes) can be configured to utilize a radio protocol stack that is physically or logically integrated within a single RAN node (e.g., within a single device or cell). Decomposed base stations (e.g., decomposed network nodes) can be configured to utilize a protocol stack that is physically or logically distributed across two or more cells (such as one or more CUs, one or more DUs, or one or more RUs). In some examples, the CU may be implemented within a network node, and one or more DUs may be co-located with the CU, or alternatively, may be geographically or virtually distributed across one or more other network nodes. DUs may be implemented to communicate with one or more RUs. Each of the CU, DU, and RU may also be implemented as a virtual cell, such as a Virtual Central Unit (VCU), a Virtual Distributed Unit (VDU), or a Virtual Radio Unit (VRU), etc.

[0078] Base station type operation or network design may consider the aggregation characteristics of base station functionality. In some aspects, decomposed base stations can be used in IAB networks, Open Radio Access Networks (O-RAN (such as network configurations initiated by the O-RAN Alliance)), or Virtualized Radio Access Networks (vRAN, also known as Cloud Radio Access Networks (C-RAN)) to facilitate the scaling of communication systems by separating base station functionality into one or more units that can be deployed independently. Decomposed base stations may include functionality implemented across two or more units at various physical locations, as well as functionality virtually implemented for at least one unit, which enables flexibility in network design. The individual units of a decomposed base station can be configured for wired or wireless communication with at least one other unit of the decomposed base station.

[0079] Figure 3 This is a diagram illustrating example 300 of sidelink communication according to this disclosure.

[0080] like Figure 3 As shown, the first UE 305-1 can communicate with the second UE 305-2 (and one or more other UEs 305) via one or more sidelink channels 310. UEs 305-1 and 305-2 can communicate using one or more sidelink channels 310 for P2P communication, D2D communication, V2X communication (which may include V2V communication, V2I communication, and / or V2P communication), and / or mesh networking. In some aspects, UEs 305 (e.g., UEs 305-1 and / or UEs 305-2) can correspond to one or more other UEs (such as UE 120) described elsewhere herein. In some aspects, one or more sidelink channels 310 can use a PC5 interface and / or can operate in a high-frequency band (e.g., the 5.9 GHz band). Additionally or alternatively, UEs 305 can use Global Navigation Satellite System (GNSS) timing to synchronize the timing of transmission time intervals (TTIs) (e.g., frames, subframes, time slots, or symbols).

[0081] As in Figure 3As further illustrated, one or more sidelink channels 310 may include a Physical Sidelink Control Channel (PSCCH) 315, a PSSCH 320, and / or a PSFCH 325. The PSCCH 315 may be used to convey control information, similar to a Physical Downlink Control Channel (PDCCH) and / or a Physical Uplink Control Channel (PUCCH) for cellular communication with network node 110 via an access link or access channel. The PSSCH 320 may be used to convey data, similar to a Physical Downlink Shared Channel (PDSCH) and / or a Physical Uplink Shared Channel (PUSCH) for cellular communication with network node 110 via an access link or access channel. In some aspects, the PSCCH 315 may carry Sidelink Control Information (SCI) 330, which may indicate various control information for sidelink communication, such as one or more resources (e.g., time resources, frequency resources, and / or spatial resources), wherein a Transport Block (TB) 335 may be carried on the PSSCH 320. TB 335 may include data. PSFCH 325 may be used to convey sidelink feedback 340, such as Hybrid Automatic Repeat Request (HARQ) feedback (e.g., ACK or NACK information), Transmit Power Control (TPC), and / or Schedule Request (SR).

[0082] Although shown on PSCCH 315, SCI 330 may include multiple communications at different levels, such as Level 1 SCI (SCI-1) and Level 2 SCI (SCI-2) in some respects. SCI-1 can be transmitted on PSCCH 315. SCI-2 can be transmitted on PSSCH 320. SCI-1 may include, for example, indications of one or more resources on PSSCH 320 (e.g., time resources, frequency resources, and / or spatial resources), information for decoding sidelink communications on PSSCH, Quality of Service (QoS) priority values, resource reservation periods, PSSCH DMRS modes, SCI format for SCI-2, β offset for SCI-2, number of PSSCH DMRS ports, and / or MCS. SCI-2 may include information associated with data transmission on PSSCH 320, such as HARQ procedure ID, New Data Indicator (NDI), source identifier, destination identifier, and / or Channel State Information (CSI) report triggering.

[0083] In some aspects, one or more sidelink channels 310 may use a resource pool. In some aspects, specific RBs may be used across time to transmit (e.g., scheduling assignments included in SCI 330) in a subchannel. In some aspects, data transmissions associated with scheduling assignments (e.g., on PSSCH 320) may (e.g., using frequency division multiplexing) occupy adjacent RBs in the same subframe as the scheduling assignment. In some aspects, scheduling assignments and associated data transmissions are not transmitted on adjacent RBs.

[0084] In some aspects, UE 305 may operate using a sidelink transmission mode (e.g., mode 1), where resource selection and / or scheduling is performed by network node 110 (e.g., base station, CU, or DU). In some aspects, UE 305 may receive permission for sidelink channel access and / or scheduling from network node 110 (e.g., in downlink control information (DCI) or in radio resource control (RRC) messages, such as permission for configuration) (e.g., directly or via one or more network nodes). In some aspects, UE 305 may operate using a transmission mode (e.g., mode 2), where resource selection and / or scheduling is performed by UE 305 (e.g., instead of network node 110). In some aspects, UE 305 may perform resource selection and / or scheduling by sensing channel availability for transmission. In some respects, UE 305 can measure RSSI parameters (e.g., sidelink-RSSI (S-RSSI) parameters) associated with various sidelink channels, can measure RSRP parameters (e.g., PSSCH-RSRP parameters) associated with various sidelink channels, and / or can measure RSRQ parameters (e.g., PSSCH-RSRQ parameters) associated with various sidelink channels, and can select the channel for transmitting sidelink communication based at least in part on the measurements.

[0085] Alternatively or alternatively, UE 305 may use SCI 330 received in PSCCH 315 to perform resource selection and / or scheduling, which may indicate the occupied resources and / or channel parameters. Alternatively or alternatively, UE 305 may perform resource selection and / or scheduling by determining the Channel Busy Ratio (CBR) associated with various sidelink channels, which may be used for rate control (e.g., by indicating the maximum number of resource blocks that UE 305 can use for a specific set of subframes).

[0086] In a transmission mode where resource selection and / or scheduling is performed by the UE 305, the UE 305 can generate sidelink grants and can transmit the grants in SCI 330. Sidelink grants can indicate one or more parameters (e.g., transmission parameters) to be used for an upcoming sidelink transmission, such as one or more resource blocks (e.g., for TB 335) to be used for an upcoming sidelink transmission on PSSCH 320, one or more subframes to be used for an upcoming sidelink transmission, and / or the MCS to be used for an upcoming sidelink transmission. In some aspects, the UE 305 can generate sidelink grants that indicate one or more parameters for semi-persistent scheduling (SPS), such as the periodicity of sidelink transmissions. Additionally or alternatively, the UE 305 can generate sidelink grants for event-driven scheduling (such as for on-demand sidelink messages).

[0087] As indicated above, Figure 3 This is provided as an example. Other examples may be provided in conjunction with [the relevant information]. Figure 3 The examples described are different.

[0088] Figure 4 This is a diagram illustrating example 400 of sidelink communication and access link communication according to this disclosure.

[0089] like Figure 4 As shown, the transmitter (Tx) / receiver (Rx) UE 405 and the Rx / Tx UE 410 can communicate with each other via a side link, as described above. Figure 3 As described herein. As further shown, in some sidelink modes, network node 110 may communicate with Tx / Rx UE 405, such as via a first access link (e.g., directly or via one or more network nodes). Additionally or alternatively, in some sidelink modes, network node 110 may communicate with Rx / Tx UE 410, such as via a first access link (e.g., directly or via one or more network nodes). Tx / Rx UE 405 and / or Rx / Tx UE 410 may communicate with one or more UEs (such as those described elsewhere herein) Figure 1 This corresponds to UE 120. Therefore, a direct link between UEs 120 (e.g., via the PC5 interface) can be called a side link, and a direct link between network node 110 and UE 120 (e.g., via the Uu interface) can be called an access link. Side link communication can be sent via the side link, and access link communication can be sent via the access link. Access link communication can be downlink communication (from network node 110 to UE 120) or uplink communication (from UE 120 to network node 110).

[0090] As indicated above, Figure 4This is provided as an example. Other examples may be provided in conjunction with [the relevant information]. Figure 4 The examples described are different.

[0091] Figure 5 This is an illustration of example 500 of selecting sidelink resources according to this disclosure. Example 500 shows UE 502 (e.g., UE 120) which can receive communication from other UEs (such as UE 504, UE 506 and / or UE 508) on a sidelink channel.

[0092] Such as combination Figure 5 Description: UE 504 is a transmitting UE that sends communications to UE 502, which is acting as a receiving UE. UE 504 can use reports from UE 502, which can act as a reporting UE reporting available sidelink resources, preferred sidelink resources, non-preferred sidelink resources, or sidelink resource conflicts. Example 500 illustrates availability reporting from UE 502 to UE 504 and communication from UE 504 to UE 502. Sidelink mode 2 resource selection can be performed in both licensed and unlicensed frequency bands. UE 504 can receive SCIs from UE 502 and decode the reservation information carried in the SCI. If the RSRP of the SCI is greater than a threshold (e.g., an availability threshold configured or pre-configured for each transmit and receive priority), UE 504 can comply with this reservation information and exclude reserved resources from the resource selection window.

[0093] In SL-U, UE 504 can sense the sidelink channel. If UE 504 is about to send communication to UE 502, UE 504 can sense the sidelink channel within the sensing window to determine which sidelink resources (e.g., subcarriers, subchannels) are available. UE 504 can use a Listen-Before-Talk (LBT) procedure to sense the channel. The LBT procedure can be a Type 1 LBT procedure, in which UE 504 listens to multiple time slots (e.g., 9 milliseconds (ms)) and uses a counter. If the sidelink resource is idle or has signal energy that meets an availability threshold (e.g., RSRP) (e.g., interference or energy measured on the channel is below the maximum dBm or dB RSRP threshold), the sidelink resource can be considered available. The availability threshold can be configured or pre-configured according to transmit and receive priority pairs. Depending on the configuration, UE 504 can measure DMRS on the PSCCH or PSSCH.

[0094] In some respects, UE 504 may be ready to send communication to UE 502. UE 504 may have already sensed previous sidelink resources and successfully decoded the SCI from UE 506 and UE 508. UE 504 may attempt to reserve sidelink resources, and thus can check the availability of future sidelink resources reserved by UE 506 and UE 508 by sensing the sidelink channel within the sensing window. UE 504 may measure the RSRP of the signal from UE 508 in sidelink resource 510 and the RSRP of the signal from UE 506 in sidelink resource 512. If the observed RSRP (RSRP projection) meets an RSRP threshold (e.g., below the maximum RSRP), the corresponding sidelink resource can be used for reservation by UE 504. UE 504 may reserve sidelink resources (which may be randomly selected from available resources). In some respects, UE 504 may select and reserve sidelink resource 514 for transmission. This can be done within a time slot after which UE 506 and UE 508 have already used sidelink resources, and UE 504 may have sensed these sidelink resources earlier. UE 504 can select and reserve sidelink resources only when a threshold level (e.g., 20%, 30%, or 50% availability) is reached. UE 504 can increase or decrease the RSRP threshold as needed to reach the threshold level. UE 504 can select and reserve sidelink resources in the current time slot and up to two (or more) future time slots. Reservation can be aperiodic or periodic (e.g., SCI signal period between 0ms and 1000ms). Periodic resource reservation can be disabled.

[0095] During processing time T proc,0 Then and at another processing time T proc,1 Previously, there could be a resource selection trigger to initiate the selection of sidelink resources, followed by a resource selection window from which sidelink resources can be obtained. The resource selection window can be a time window from which sidelink resources can be selected, and the resource selection window can be extended for the remaining packet delay budget (PDB).

[0096] As indicated above, Figure 5 This is provided as an example. Other examples may be provided in conjunction with [the relevant information]. Figure 5 The examples described are different.

[0097] Figure 6 This is a diagram illustrating example 600 of the PSFCH timing defined according to this disclosure.

[0098] After PSSCH communication is sent, multiple pre-configured PSFCH opportunities (timings) can exist for transmission. Each PSFCH timing can have a different HARQ timeline and can be mapped to a different PSFCH resource set. The PSFCH resource set can include a PRB set or an RB set. The resources used for the first PSFCH timing can be restricted to a pre-configured resource set within the resource pool, and the second PSFCH timing can be mapped to a different pre-configured resource set within the resource pool. Different PSFCH timings can be mapped to different resource sets. That is, in an unlicensed sidelink (SL-U), PSFCH timings for PSSCH communication can reside in different RB sets. PSFCH timings in different RB sets do not contribute to the utilization and continuation of channel occupancy time.

[0099] In some respects, PSFCH timings can reside within the same set of RBs occupied by PSSCH communication. However, how to partition the PSFCH resource pool for multiple PSFCH timings within the same RB set has not yet been specified.

[0100] According to the various aspects described herein, different PSFCH timings can be FDMed and uniformly divided within the PSFCH PRBs of each RB set. PSFCH timings can be uniformly divided by evenly allocating frequency bandwidths or PRBs among the PSFCH timings in an RB set, which is the same set of RBs in which PSSCH communication is received. Each PSFCH timing can have the same bandwidth or number of PRBs. In some aspects, the PSFCH PRB for each subchannel or time slot can be within the RB set occupied by the corresponding subchannel.

[0101] Example 600 illustrates two RB sets (RB set #0 and RB set #1) over multiple sub-channels. PSFCH timings are FDMed in each slot used for the RB sets. The PSFCH timings are evenly divided, with each PSFCH timing having an equal size. If one or more PRBs remain after dividing the number of PRBs by the number of PSFCH timings, the remaining PRBs may be allocated to some PSFCH timings or left unused. PSFCH timings can span multiple sub-channels.

[0102] Example 600 illustrates that PSFCH timing 602 can be the first PSFCH timing for subchannels #0 to #4 (preamble subchannel #0). The UE can receive PSSCH communication (e.g., in one, two, or three subchannels). The UE can send PSFCH communication in PSFCH timing 602 (as feedback to PSSCH communication). PSFCH communication can be repeated. If needed, PSFCH timing 604 can be the second PSFCH timing for a second PSSCH communication. If needed, PSFCH timing 606 can be the third PSFCH timing for PSSCH communication. If needed, PSFCH timing 608 can be the fourth PSFCH timing for PSSCH communication. RB set #0 includes four PSFCH timings. RB sets can include other numbers of PSFCH timings.

[0103] Example 600 illustrates that PSFCH timing 610 can be the first PSFCH timing for subchannels #5 to #9 (preamble subchannel #5). The UE can send PSFCH communication in PSFCH timing 610 (as feedback to PSSCH communication). If needed, PSFCH timing 612 can be the second PSFCH timing for PSSCH communication. If needed, PSFCH timing 614 can be the third PSFCH timing for PSSCH communication. If needed, PSFCH timing 616 can be the fourth PSFCH timing for PSSCH communication.

[0104] By evenly distributing PSFCH timings within the time slots of the RB set (the same RB set for PSFCH communication), the UE can optimize PSFCH resources. Optimizing PSFCH resources saves signaling resources.

[0105] In some aspects, the UE can determine the PSFCH resource (e.g., a dedicated PRB for PSFCH) based at least in part on the fact that the preamble sub-channel used for PSSCH is the first sub-channel used for PSFCH. That is, the PRB corresponding to the PSFCH timing index can be divided into multiple subsets, each corresponding to a sub-channel / time slot. The subset used for transmitting PSFCH communication can correspond to the preamble sub-channel of PSSCH communication. In some aspects, if there are four preamble sub-channels, the UE can use a second PSFCH timing.

[0106] As indicated above, Figure 6 This is provided as an example. Other examples may be provided in conjunction with [the relevant information]. Figure 6 The examples described are different.

[0107] Figure 7This is a diagram illustrating example 700 of transmitting PSFCH communication according to this disclosure. UE 710 (e.g., UE 120) can communicate with another UE 720 (e.g., UE 120) on a sidelink communication within a wireless network (e.g., wireless network 100).

[0108] Example 700 illustrates the use of evenly divided PSFCH timings. As shown by reference numeral 725, UE 710 can transmit PSFCH communication within an RB set. Multiple PSFCH timings (e.g., first PSFCH timing, second PSFCH timing, third PSFCH timing, and fourth PSFCH timing) can be evenly divided within the RB set. As shown by reference numeral 730, UE 720 can transmit first PSFCH communication during the first PSFCH timing. As shown by reference numeral 735, UE 720 can transmit second PSFCH communication during the second PSFCH timing if needed. As shown by reference numeral 740, UE 720 can transmit third PSFCH communication during the third PSFCH timing if needed. As shown by reference numeral 745, UE 720 can transmit fourth PSFCH communication during the fourth PSFCH timing if needed.

[0109] As indicated above, Figure 7 This is provided as an example. Other examples may be provided in conjunction with [the relevant information]. Figure 7 The examples described are different.

[0110] Figure 8 This is a diagram illustrating example 800 of the PSFCH timing mapping according to this disclosure.

[0111] The PSFCH PRB for each subchannel / slot can be within the set of RBs occupied by the corresponding subchannel used for PSSCH communication. In some aspects, PSSCH communication can be mapped to PSFCH timing at least in part based on one or more parameters. Parameters may include the source ID ( ), Receive UE member ID ( ), the number of PSFCH opportunities in the RB set ( K ) and / or PSFCH timing index ( k , k = 0 ~ ( K -1)). In some respects, the timing of PSFCH can be at least partially based on ,in This can be the number of PRBs used for each subchannel / slot.

[0112] Example 800 illustrates a method for having a source ID. =10 and Examples of two UEs with a value of 11. K=4, and =60. At least in part based on the first source ID ( =10) mapping of the first set of four timings, and at least in part based on the second source ID ( =11) The second set of four timings mapped. By mapping according to certain parameters, the UE can optimize the PSFCH timing in the RB set, which saves signaling resources.

[0113] As indicated above, Figure 8 This is provided as an example. Other examples are available with reference to [the relevant information]. Figure 8 The examples described are different.

[0114] Figure 9 This is a diagram illustrating example 900 of transmitting PSFCH communication according to this disclosure. UE 910 (e.g., UE 120) can communicate with another UE 920 (e.g., UE 120) on a sidelink communication within a wireless network (e.g., wireless network 100).

[0115] Example 900 illustrates that PSSCH communication can be mapped to PSFCH timings. As shown by reference numeral 925, UE 910 can send PSSCH communication within an RB set. UE 920 can map PSSCH communication to PSFCH timings at least in part based on the source ID (e.g., the ID for UE 910), the receiving UE ID (e.g., the ID for UE 920), the number of PSFCH timings in the RB set, and / or the PSFCH timing index. As shown by reference numeral 930, UE 920 can send PSFCH communication for PSSCH communication within the mapped PSFCH timing.

[0116] As indicated above, Figure 9 This is provided as an example. Other examples may be provided in conjunction with [the relevant information]. Figure 9 The examples described are different.

[0117] Figure 10 This is a diagram illustrating example 1000 of a protection band resource element (RE) according to this disclosure.

[0118] For the new PSFCH structure in SL-U, common interleaving can be transmitted by all sidelink receiving UEs to satisfy occupied channel bandwidth (OCB) constraints. Guard band PRBs and guard band REs can be used to mitigate in-band transmit (IBE). In some respects, truncated common PRBs can be transmitted to mitigate IBE. Example 1000 illustrates dedicated PRBs between common PRBs (…). N=2 PRBs). When the subcarrier spacing (SCS) is 60 kHz, each PSFCH communication can occupy K4 dedicated PRBs and two common PRBs, with the two common PRBs located at the two edges of the RB set. In this case, the guard band RE can be located at one edge of the common PRBs.

[0119] In some respects, the number of REs used to protect the frequency band ( N The REs can be pre-configured or configured via RRC signaling. Therefore, the number of REs sent in the public PRB can be (12- N The UE can receive an indication of the number of REs used to protect the frequency band.

[0120] As indicated above, Figure 10 This is provided as an example. Other examples may be provided in conjunction with [the relevant information]. Figure 10 The examples described are different.

[0121] Figure 11 This is a diagram illustrating example 1100 of the protection band according to this disclosure.

[0122] In some respects, the guard band RE can be located at both edges of the common PRB, and each edge of the common PRB can have N / 2 guard band REs. Example 1100 shows a common PRB with two REs at each edge of the common PRB.

[0123] As indicated above, Figure 11 This is provided as an example. Other examples may be provided in conjunction with [the relevant information]. Figure 11 The examples described are different.

[0124] Figure 12 This is a diagram illustrating example 1200 of the protection band RE according to this disclosure.

[0125] In some respects, when the public PRB includes guard band REs, the UE can follow power allocation rules. In other respects, the UE can select the transmit power for the public PRB based at least in part on the actual REs transmitted in the public PRB. The UE can use power allocation in all power control steps. replace ,in It is the number of PRBs used for common interleaving, and N This refers to the number of REs used to protect the frequency band.

[0126] In some respects, the UE can be used in PSFCH power control. And discard the power allocated to guard band REs. In some respects, the UE can select the transmit power for the common PRB, at least in part, based on the number of REs in the common PRB, without subtracting or discarding guard band REs. If guard band REs exist, the total power of a common PRB can be reduced. However, if N is large, problems may arise. When discarding... N When power is on a guard band RE, the UE can perform partial guard band RE drop. Dropping can start from the edge of the common PRB, as shown in Example 1200.

[0127] In some respects, the UE can be used in PSFCH power control. The UE can reallocate power to the actual transmitting REs in the public PRB. In some aspects, the UE can select the transmit power for the public PRB based at least on the number of REs in the public PRB without subtracting REs in the guard band and without allocating power to REs actually used in the public PRB. In some aspects, the UE can reallocate all the total power of a public PRB to the actually transmitting REs. In some aspects, the UE can reallocate the minimum required power of a public PRB to the actually transmitting REs.

[0128] As indicated above, Figure 12 This is provided as an example. Other examples may be provided in conjunction with [the relevant information]. Figure 12 The examples described are different.

[0129] Figure 13 This is an illustration of example 1300 of transmitting PSFCH communication using a guard band according to this disclosure. UE 1310 (e.g., UE 120) can communicate with another UE 1320 (e.g., UE 120) on a sidelink communication within a wireless network (e.g., wireless network 100).

[0130] As shown by reference numeral 1325 in the attached figure, UE 1310 can transmit PSSCH communication within the RB set. As shown by reference numeral 1330 in the attached figure, UE 1320 can transmit PSFCH communication using the guard band located at the edge of the common PRB, as combined with... Figure 11 and Figure 12 As described.

[0131] As indicated above, Figure 13 This is provided as an example. Other examples may be provided in conjunction with [the relevant information]. Figure 13 The examples described are different.

[0132] Figure 14This is a diagram illustrating an example process 1400 performed, for example, at a UE or a device of a UE, according to this disclosure. Example process 1400 is an example in which a device or UE (e.g., UE 120, UE 720) performs operations associated with uniformly divided PSFCH timing.

[0133] like Figure 14 As shown, in some aspects, process 1400 may include receiving PSSCH communication from the RB set (block 1410). In some aspects, the UE (e.g., using...) Figure 17 The receiving component 1702 and / or communication manager 1706 described herein can receive PSSCH communications from the RB set, as described above.

[0134] like Figure 14 As further shown, in some aspects, process 1400 may include: transmitting a first PSFCH communication for PSSCH communication in a first PSFCH timing among a plurality of PSFCH timings evenly divided in the RB set (box 1420). In some aspects, the UE (e.g., using...) Figure 17 The transmitting component 1704 and / or the communication manager 1706 described herein can transmit a first PSFCH communication for PSSCH communication in a first PSFCH timing among a plurality of PSFCH timings that are evenly divided in the RB set, as described above.

[0135] Process 1400 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 in this document.

[0136] In the first aspect, multiple PSFCH opportunities are frequency-division multiplexed in time slots.

[0137] In a second aspect, either alone or in combination with the first aspect, the plurality of PSFCH timings include a first PSFCH timing, a second PSFCH timing, a third PSFCH timing, and a fourth PSFCH timing, and wherein the method includes performing one or more of the following: transmitting second PSFCH communication for PSSCH communication in the second PSFCH timing of the plurality of PSFCH timings, transmitting third PSFCH communication for PSSCH communication in the third PSFCH timing of the plurality of PSFCH timings, or transmitting fourth PSFCH communication for PSSCH communication in the fourth PSFCH timing of the plurality of PSFCH timings.

[0138] although Figure 14 An example box of process 1400 is shown, but in some respects, process 1400 may include... Figure 14The boxes depicted in the process are compared to additional boxes, fewer boxes, different boxes, or boxes arranged in a different manner. Alternatively, two or more boxes in the process 1400 may be executed in parallel.

[0139] Figure 15 This is a diagram illustrating an example process 1500 performed, for example, at a UE or a device of a UE, according to this disclosure. Example process 1500 is an example in which a device or UE (e.g., UE 120, UE 920) performs operations associated with a mapped PSFCH timing.

[0140] like Figure 15 As shown, in some aspects, process 1500 may include receiving PSSCH communication from the RB set (block 1510). In some aspects, the UE (e.g., using...) Figure 17 The receiving component 1702 and / or communication manager 1706 described herein can receive PSSCH communications from the RB set, as described above.

[0141] like Figure 15 Further shown, in some aspects, process 1500 may include sending PSFCH communication for PSSCH communication in a PSFCH timing mapped to PSSCH communication, based at least in part on the source ID, the receiving UE ID, the number of PSFCH timings in the RB set, and the timing index of the PSFCH timings (box 1520). Figure 17 The transmitting component 1704 and / or the communication manager 1706 described herein can transmit PSFCH communication for PSSCH communication in a PSFCH time that is mapped to PSSCH communication, based at least in part on the source ID, the receiving UE ID, the number of PSFCH times in the RB set and the time index of the PSFCH time, as described above.

[0142] Process 1500 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 in this document.

[0143] In the first aspect, the PSFCH timing is further mapped to PSSCH communication based at least in part on the number of sub-channels or time slots used for the PSFCH timing.

[0144] although Figure 15 An example box of process 1500 is shown, but in some respects, process 1500 may include... Figure 15 The boxes depicted in the process are compared to additional boxes, fewer boxes, different boxes, or boxes arranged in a different manner. Alternatively, two or more boxes in the process 1500 may be executed in parallel.

[0145] Figure 16 This is a diagram illustrating an example process 1600 performed, for example, at a UE or a device of a UE, according to this disclosure. Example process 1600 is an example in which a device or UE (e.g., UE 120, UE 1320) performs operations associated with the use of a guard band for PSFCH communication.

[0146] like Figure 16 As shown, in some aspects, process 1600 may include receiving PSSCH communication (block 1610). In some aspects, the UE (e.g., using...) Figure 17 The receiving component 1702 and / or communication manager 1706 depicted herein can receive PSSCH communication as described above.

[0147] like Figure 16 The diagram further illustrates that, in some aspects, process 1600 may include transmitting PSFCH communication in a dedicated PRB resource having a guard band located at the edge of a public PRB (box 1620). In some aspects, the UE (e.g., using...) Figure 17 The transmitting component 1704 and / or the communication manager 1706 described herein can transmit PSFCH communication in a dedicated PRB resource having a guard band at the edge of a public PRB, as described above.

[0148] Process 1600 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 in this document.

[0149] In a first aspect, process 1600 includes receiving an indication of the number of REs used for guarding the frequency band.

[0150] In a second aspect, either alone or in combination with the first aspect, process 1600 includes selecting the transmission power for the public PRB based at least in part on the actual REs transmitted in the public PRB.

[0151] In a third aspect, either alone or in combination with one or more of the first and second aspects, process 1600 includes selecting the transmission power for the common PRB based at least in part on the number of REs in the common PRB without subtracting REs from the guard band and without discarding REs in the guard band.

[0152] In the fourth aspect, either alone or in combination with one or more of the first to third aspects, discarding RE includes discarding RE starting from the edge of the public PRB.

[0153] In a fifth aspect, either alone or in combination with one or more of the first to fourth aspects, process 1600 includes selecting the transmission power for the public PRB based at least on the number of REs in the public PRB without subtracting REs in the guard band and without allocating power to REs actually used in the public PRB.

[0154] In the sixth aspect, either alone or in combination with one or more of the first to fifth aspects, power allocation includes allocating total power to REs actually used in the public PRB.

[0155] In the seventh aspect, either alone or in combination with one or more of the first to sixth aspects, power allocation includes allocating a specified minimum power to the REs actually used in the public PRB.

[0156] although Figure 16 An example box of process 1600 is shown, but in some respects, process 1600 may include... Figure 16 The boxes depicted in the process are compared to additional boxes, fewer boxes, different boxes, or boxes arranged in a different manner. Alternatively, two or more boxes in the process 1600 may be executed in parallel.

[0157] Figure 17 This is a diagram of an example device 1700 for wireless communication according to the present disclosure. Device 1700 may be a UE (e.g., UE 120, UE 720, UE 920, UE 1320), or a UE may include device 1700. In some aspects, device 1700 includes a receiving component 1702, a transmitting component 1704, and / or a communication manager 1706 that can communicate with each other (e.g., via one or more buses and / or one or more other components). In some aspects, the communication manager 1706 is combined with... Figure 1 The described communication manager 140. As shown, device 1700 can use receiving component 1702 and transmitting component 1704 to communicate with another device 1708 (such as UE or network node (such as CU, DU, RU or base station)).

[0158] In some respects, device 1700 can be configured to perform the functions described herein. Figures 1 to 13 The one or more operations described herein. Additionally or alternatively, the apparatus 1700 may be configured to perform one or more processes described herein, such as... Figure 14 Process 1400 Figure 15 Process 1500 Figure 16 The process 1600 or a combination thereof. In some respects, Figure 17 The device 1700 and / or one or more components shown may include a combination Figure 2One or more components of the described UE. Additionally or alternatively, Figure 17 One or more components shown can be combined Figure 2 Implementation within one or more of the described components. Alternatively or additionally, one or more components in the set of components may be implemented at least partially as software stored in one or more memories. In some aspects, 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 one or more controllers or processors to perform the function or operation of the component.

[0159] Receiver 1702 may receive communications from device 1708, such as reference signals, control information, data communications, or combinations thereof. Receiver 1702 may provide the received communications to one or more other components of device 1700. In some aspects, receiver 1702 may perform signal processing on the received communications (such as filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, demapping, equalization, interference cancellation, or decoding, etc.) and may provide the processed signals to one or more other components of device 1700. In some aspects, receiver 1702 may include combinations of... Figure 2 The described UE includes one or more antennas, one or more modems, one or more demodulators, one or more MIMO detectors, one or more receiver processors, one or more controllers / processors, one or more memories, or combinations thereof.

[0160] Transmitting component 1704 can transmit communications to device 1708, such communications as reference signals, control information, data communications, or combinations thereof. In some aspects, one or more other components of device 1700 can generate communications and provide the generated communications to transmitting component 1704 for transmission to device 1708. In some aspects, transmitting component 1704 can perform signal processing (such as filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding, etc.) on the generated communications and can transmit the processed signals to device 1708. In some aspects, transmitting component 1704 can include combinations of... Figure 2 The described UE may include one or more antennas, one or more modems, one or more modulators, one or more transmit MIMO processors, one or more transmit processors, one or more controllers / processors, one or more memories, or combinations thereof. In some aspects, the transmit component 1704 may co-located with the receive component 1702 in one or more transceivers.

[0161] The communication manager 1706 may support the operation of the receiving component 1702 and / or the transmitting component 1704. In some aspects, the communication manager 1706 may receive information associated with configuring the reception of communication by the receiving component 1702 and / or the transmission of communication by the transmitting component 1704. Additionally or alternatively, the communication manager 1706 may generate control information and / or provide such control information to the receiving component 1702 and / or the transmitting component 1704 to control the reception and / or transmission of communication.

[0162] In some respects, receiving component 1702 can receive PSSCH communications from the RB set. Transmitting component 1704 can transmit a first PSSCH communication for PSSCH communication in a first PSSCH time slot among a plurality of PSFCH time slots that are evenly divided in the RB set.

[0163] In some respects, receiving component 1702 can receive PSSCH communications from the RB set. Transmitting component 1704 can transmit PSFCH communications for PSSCH communications in PSFCH times mapped to PSSCH communications, based at least in part on the source ID, receiving UE ID, the number of PSFCH times in the RB set, and the time index of the PSFCH times.

[0164] In some respects, receiving component 1702 can receive PSSCH communication. Transmitting component 1704 can transmit PSFCH communication in a dedicated PRB resource having a guard band at the edge of the public PRB. Receiving component 1702 can receive an indication of the number of REs used for the guard band. Communication manager 1706 can select the transmission power for the public PRB based at least in part on the actual REs transmitted in the public PRB. Communication manager 1706 can select the transmission power for the public PRB based at least in part on the number of REs in the public PRB without subtracting or discarding REs in the guard band. Communication manager 1706 can select the transmission power for the public PRB based at least on the number of REs in the public PRB without subtracting REs in the guard band or allocating power to REs actually used in the public PRB.

[0165] Figure 17 The number and arrangement of components shown are provided as an example. In reality, they can exist in combination with... Figure 17 The components shown are compared to additional components, fewer components, different components, or components arranged in a different manner. Furthermore, Figure 17 The two or more components shown can be implemented within a single component, or Figure 17 The single component shown can be implemented as multiple distributed components. Alternatively, Figure 17The set (one or more) components shown can perform actions described by Figure 17 The other set of components shown performs one or more functions.

[0166] The following provides an overview of some aspects of this disclosure: Aspect 1: A method of wireless communication performed by a user equipment (UE), comprising: receiving physical side link shared channel (PSSCH) communication in a set of resource blocks (RBs); and transmitting a first PSFCH communication for the PSSCH communication in a first PSFCH timing among a plurality of physical side link feedback channel (PSFCH) timings that are uniformly divided in the set of RBs.

[0167] Aspect 2: According to the method of aspect 1, the plurality of PSFCH timings are frequency-division multiplexed in time slots.

[0168] Aspect 3: The method according to any one of Aspects 1 to 2, wherein the plurality of PSFCH timings includes a first PSFCH timing, a second PSFCH timing, a third PSFCH timing, and a fourth PSFCH timing, and wherein the method includes performing one or more of the following: transmitting a second PSFCH communication for the PSSCH communication in the second PSFCH timing of the plurality of PSFCH timings, transmitting a third PSFCH communication for the PSSCH communication in the third PSFCH timing of the plurality of PSFCH timings, or transmitting a fourth PSFCH communication for the PSSCH communication in the fourth PSFCH timing of the plurality of PSFCH timings.

[0169] Aspect 4: A method of wireless communication performed by a user equipment (UE), comprising: receiving physical sidelink shared channel (PSSCH) communication in a set of resource blocks (RBs); and transmitting PSFCH communication for the PSSCH communication in a PSFCH timing mapped to the PSSCH communication, based at least in part on a source identifier (ID), a receiving UE ID, a number of physical sidelink feedback channel (PSFCH) timings in the set of RBs, and a timing index of the PSFCH timings.

[0170] Aspect 5: According to the method of aspect 4, the PSFCH timing is further mapped to the PSSCH communication based at least in part on the number of sub-channels or time slots used for the PSFCH timing.

[0171] Aspect 6: A method of wireless communication performed by a user equipment (UE), comprising: receiving physical side link shared channel (PSSCH) communication; and transmitting physical side link feedback channel (PSFCH) communication in a dedicated PRB resource having a guard band at the edge of a common physical resource block (PRB).

[0172] Aspect 7: The method according to aspect 6 further includes receiving an indication of the number of resource elements for the protection band.

[0173] Aspect 8: The method according to any one of Aspects 6 to 7 further includes selecting the transmission power for the public PRB based at least in part on the actual resource elements transmitted in the public PRB.

[0174] Aspect 9: The method according to aspect 8 further includes selecting the transmission power for the public PRB based at least in part on the number of resource elements (REs) in the public PRB without subtracting REs from the guard band and without discarding REs in the guard band.

[0175] Aspect 10: According to the method of aspect 9, discarding the RE includes discarding the RE starting from the edge of the public PRB.

[0176] Aspect 11: The method according to any one of Aspects 6 to 10 further includes selecting the transmission power for the public PRB based at least on the number of resource elements (REs) in the public PRB without subtracting REs from the guard band and without allocating power to REs actually used in the public PRB.

[0177] Aspect 12: The method according to aspect 11, wherein allocating the power includes allocating the total power to the RE actually used in the public PRB.

[0178] Aspect 13: The method according to aspect 11, wherein allocating the power includes allocating a specified minimum power to the RE actually used in the public PRB.

[0179] Aspect 14: An apparatus for wireless communication at a device, the apparatus comprising one or more processors; one or more memories coupled to the one or more processors; and instructions stored in the one or more memories and executable by the one or more processors to cause the apparatus to perform the method according to one or more of aspects 1 to 13.

[0180] Aspect 15: An apparatus for wireless communication at a device, the apparatus comprising one or more memories and one or more processors coupled to the one or more memories, the one or more processors being configured to cause the device to perform the method according to one or more of aspects 1 to 13.

[0181] Aspect 16: An apparatus for wireless communication, the apparatus comprising at least one component for performing the method according to one or more of aspects 1 to 13.

[0182] Aspect 17: A non-transitory computer-readable medium storing code for wireless communication, said code including instructions executable by one or more processors to perform the methods described in accordance with one or more of aspects 1 to 13.

[0183] Aspect 18: A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions comprising one or more instructions that, when executed by one or more processors of a device, cause the device to perform the method according to one or more of aspects 1 to 13.

[0184] Aspect 19: A device for wireless communication, the device including a processing system comprising one or more processors and one or more memories coupled to the one or more processors, the processing system being configured to cause the device to perform the method according to one or more of aspects 1 to 13.

[0185] While the foregoing disclosure provides examples and descriptions, it is not intended to be exhaustive or to limit aspects to the precise forms disclosed. Modifications and variations can be made based on the foregoing disclosure, or from various aspects of practice.

[0186] As used herein, the term "component" is intended to be interpreted broadly as hardware and / or a combination of hardware and software. Whether referred to as software, firmware, middleware, microcode, hardware description language, or other names, "software" should be interpreted broadly as meaning instructions, instruction sets, code, code segments, program code, programs, subroutines, software modules, applications, software applications, software packages, routines, subroutines, objects, executable files, threads of execution, procedures, and / or functions, etc. As used herein, a "processor" is implemented in hardware and / or a combination of hardware and software. It will be apparent to those skilled in the art that the systems and / or methods described herein can be implemented in various forms of hardware and / or combinations of hardware and software. The actual dedicated control hardware or software code used to implement these systems and / or methods is not limiting in any way. Therefore, no specific software code is referenced herein to describe the operation and behavior of the systems and / or methods, as those skilled in the art will understand that the software and hardware can be designed, at least in part, based on the descriptions herein, to implement the systems and / or methods.

[0187] Hardware and data processing means for implementing the various exemplary logic units, logic blocks, modules, and circuits described herein can be implemented or executed using general-purpose single-chip or multi-chip processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs) or other programmable logic devices, discrete gate or transistor logic units, discrete hardware components, or any combination thereof designed to perform the functions described herein. A general-purpose processor can be a microprocessor, or any conventional processor, controller, microcontroller, or state machine. A processor can also be implemented as a combination of computing devices, such as a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors combined with a DSP core, or any other such configuration. In some aspects, specific processes and methods can be performed by circuitry dedicated to a given function.

[0188] As used in this article, depending on the context, "meeting the threshold" can mean a value greater than the threshold, greater than or equal to the threshold, less than the threshold, less than or equal to the threshold, equal to the threshold, not equal to the threshold, etc.

[0189] Although specific combinations of features are set forth in the claims and / or disclosed in the specification, these combinations are not intended to limit the disclosure of various aspects. Many of these features may be combined in ways not specifically set forth in the claims and / or not disclosed in the specification. The disclosure of various aspects includes each dependent claim in combination with each other claim in the set of claims. As used herein, the phrase “at least one of” in the list of items refers to any combination of these items, including a single member. As an example, “at least one of a, b, or c” is intended to cover: a, b, c, a+b, a+c, b+c, and a+b+c, as well as any combination having multiple identical elements (e.g., a+a, a+a+a, a+a+b, a+a+c, a+b+b, a+c+c, b+b, b+b+b, b+b+c, c+c, and c+c+c, or any other ordering of a, b, and c).

[0190] No element, action, or instruction used herein should be construed as essential or necessary unless explicitly stated otherwise. Furthermore, as used herein, the articles “a” and “an” are intended to include one or more items and are interchangeable with “one or more.” Furthermore, as used herein, the article “described” is intended to include one or more items mentioned in connection with the article “described” and is interchangeable with “one or more.” Furthermore, as used herein, the terms “group” and “cluster” are intended to include one or more entries and are interchangeable with “one or more.” If only one item is desired, the phrase “only one” or similar terminology will be used. Furthermore, as used herein, the terms “having” and the like are intended to be open-ended terms that do not limit the elements they modify (e.g., an element “having” A may also have B). Furthermore, the phrase “based on” is intended to mean “at least partially based on” unless otherwise explicitly stated. Furthermore, as used herein, the term “or” is intended to be open-ended when used in a series and is interchangeable with “and / or” unless otherwise expressly stated (e.g., if used in conjunction with “any” or “only one”).

Claims

1. A user equipment (UE) for wireless communication, comprising: one or more memories; and one or more processors coupled to the one or more memories, the one or more processors being individually or collectively configured to: receive a physical sidelink shared channel (PSSCH) communication in a set of resource blocks (RBs); and transmit a first physical sidelink feedback channel (PSFCH) communication for the PSSCH communication in a first PSFCH occasion of a plurality of PSFCH occasions that are uniformly partitioned in the set of RBs.

2. The UE of claim 1, wherein the plurality of PSFCH occasions are frequency division multiplexed in a slot.

3. The UE of claim 1, wherein the plurality of PSFCH occasions include the first PSFCH occasion, a second PSFCH occasion, a third PSFCH occasion, and a fourth PSFCH occasion, and wherein the one or more processors are individually or collectively configured to cause the UE to one or more of: transmit a second PSFCH communication for the PSSCH communication in the second PSFCH occasion of the plurality of PSFCH occasions, transmit a third PSFCH communication for the PSSCH communication in the third PSFCH occasion of the plurality of PSFCH occasions, or transmit a fourth PSFCH communication for the PSSCH communication in the fourth PSFCH occasion of the plurality of PSFCH occasions.

4. A user equipment (UE) for wireless communication, comprising: one or more memories; and one or more processors coupled to the one or more memories, the one or more processors being individually or collectively configured to: receive a physical sidelink shared channel (PSSCH) communication in a set of resource blocks (RBs); and transmit a PSFCH communication for the PSSCH communication in a PSFCH occasion mapped to the PSSCH communication based at least in part on a source identifier (ID), a receiving UE ID, a number of physical sidelink feedback channel (PSFCH) occasions in the set of RBs, and an occasion index of the PSFCH occasion.

5. The UE of claim 4, wherein the PSFCH occasion is further mapped to the PSSCH communication based at least in part on a number of sub-channels or slots for a PSFCH occasion.

6. A user equipment (UE) for wireless communication, comprising: one or more memories; and one or more processors coupled to the one or more memories, the one or more processors being individually or collectively configured to: receive a physical sidelink shared channel (PSSCH) communication; and transmit a physical sidelink feedback channel (PSFCH) communication in dedicated physical resource block (PRB) resources with a guard band at an edge of a common PRB.

7. The UE of claim 6, wherein the one or more processors are individually or collectively configured to receive an indication of a number of resource elements for the guard band.

8. The UE of claim 6, wherein the one or more processors are individually or collectively configured to select a transmit power for the common PRB based at least in part on actual resource elements transmitted in the common PRB.

9. The UE of claim 8, wherein the one or more processors are individually or collectively configured to select a transmit power for the common PRB based at least in part on a number of resource elements (REs) in the common PRB without subtracting REs of the guard band and without dropping the REs of the guard band.

10. The UE of claim 9, wherein to drop the REs, the one or more processors are individually or collectively configured to drop the REs starting from the edges of the common PRB.

11. The UE of claim 6, wherein the one or more processors are individually or collectively configured to select a transmit power for the common PRB based at least on a number of resource elements (REs) in the common PRB without subtracting REs of the guard band and without allocating power to REs actually used in the common PRB.

12. The UE of claim 11, wherein to allocate the power, the one or more processors are individually or collectively configured to allocate total power to the REs actually used in the common PRB.

13. The UE of claim 11, wherein to allocate the power, the one or more processors are individually or collectively configured to allocate a specified minimum power to the REs actually used in the common PRB.

14. A method of wireless communication performed by a user equipment (UE), comprising: receiving a physical sidelink shared channel (PSSCH) communication in a set of resource blocks (RBs); and transmitting a first physical sidelink feedback channel (PSFCH) communication for the PSSCH communication in a first PSFCH occasion of a plurality of PSFCH occasions that are evenly divided in the set of RBs.

15. The method of claim 14, wherein the plurality of PSFCH occasions are frequency division multiplexed in a slot.

16. The method of claim 14, wherein the plurality of PSFCH occasions include the first PSFCH occasion, a second PSFCH occasion, a third PSFCH occasion, and a fourth PSFCH occasion, and wherein the method comprises one or more of: transmitting a second PSFCH communication for the PSSCH communication in the second PSFCH occasion of the plurality of PSFCH occasions, transmitting a third PSFCH communication for the PSSCH communication in the third PSFCH occasion of the plurality of PSFCH occasions, or transmitting a fourth PSFCH communication for the PSSCH communication in the fourth PSFCH occasion of the plurality of PSFCH occasions. transmit, in the fourth PSFCH occasion of the plurality of PSFCH occasions, a fourth PSFCH communication for the PSSCH communication.

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