Transmitting resource collision indication on sidelink feedback channel

Abstract

Various aspects of the disclosure generally relate to wireless communication. In some aspects, a first user equipment (UE) can identify a conflict on a victim resource based at least in part on an aggressor reservation transmitted by a second UE. The first UE can transmit, to the second UE via a sidelink feedback channel, a resource conflict indication that indicates at least one of the victim resource or the aggressor reservation, where the resource conflict indication is multiplexed on one or more resources available for sidelink feedback. Numerous other aspects are provided.

Description

[0001] Cross-reference of related applications

[0002] This patent application claims priority to the following applications: Provisional Patent Application No. 62 / 706,022, filed July 27, 2020, entitled “TRANSMITTING RESOURCE COLLISION INDICATION ON SIDELINK FEEDBACK CHANNEL”; and U.S. Non-Provisional Patent Application No. 17 / 443,226, filed July 22, 2021, entitled “TRANSMITTING RESOURCE COLLISION INDICATION ON SIDELINK FEEDBACK CHANNEL”, which are expressly incorporated herein by reference. Technical Field

[0003] In summary, various aspects of this disclosure relate to wireless communication and to techniques and apparatus for transmitting resource conflict indications on a side link feedback channel. Background Technology

[0004] 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 / Improved LTE is an enhanced set of the Universal Mobile Telecommunications System (UMTS) mobile standard released by the 3rd Generation Partnership Project (3GPP).

[0005] A wireless network may include multiple base stations (BSs) capable of supporting communication for multiple user equipments (UEs). UEs can communicate with the BS via downlinks and uplinks. A "downlink" (or "forward link") refers to the communication link from the BS to the UE, while an "uplink" (or "backlink") refers to the communication link from the UE to the BS. As will be described in more detail herein, a BS may be referred to as a Node B, gNB, Access Point (AP), Radio Headend, Transmit / Receive Point (TRP), New Radio (NR) BS, 5G Node B, etc.

[0006] The above multiple access technologies have been adopted in various telecommunications standards to provide a common protocol that enables different user equipment to communicate at the city, country, region, and even global levels. NR (which can also be referred to as 5G) is an enhancement set of the LTE mobile standard released by 3GPP. NR is designed to better integrate with other open standards by improving spectrum efficiency, reducing costs, improving service, utilizing new spectrum, and using Orthogonal Frequency Division Multiplexing (OFDM) with Cyclic Prefix (CP) (CP-OFDM) on the downlink (DL) and CP-OFDM and / or SC-FDM (e.g., also known as Discrete Fourier Transform Spread Spectrum OFDM (DFT-s-OFDM)) on the uplink (UL), thereby better supporting mobile broadband internet access, as well as beamforming, multiple-input multiple-output (MIMO) antenna technologies, and carrier aggregation. As the demand for mobile broadband access continues to grow, further improvements to LTE, NR, and other radio access technologies remain useful. Summary of the Invention

[0007] In some aspects, a method of wireless communication performed by a first user equipment (UE) includes: identifying a conflict on a victim resource based at least in part on an aggressor reservation transmitted by a second UE; and transmitting a resource conflict indication to the second UE via a sidelink feedback channel, indicating at least one of the victim resource or the aggressor reservation, wherein the resource conflict indication is multiplexed on one or more resources available for sidelink feedback.

[0008] In some aspects, a method of wireless communication performed by a first UE includes: determining that the transmission or reception of a resource conflict indication associated with a second UE conflicts with another communication of the first UE, wherein the resource conflict indication is transmitted or received via a sidelink feedback channel; and transmitting or receiving at least one of the resource conflict indication or the other communication based at least in part on one or more priority rules.

[0009] In some aspects, a method of wireless communication performed by a first UE includes: receiving from a second UE via a sidelink feedback channel a resource conflict indication indicating at least one of victim resources or attacker reservations sent by the first UE, wherein the resource conflict indication is multiplexed over one or more resources available for sidelink feedback; and performing an action at least in part based on the resource conflict indication.

[0010] In some aspects, a first UE for wireless communication includes: a memory; and one or more processors coupled to the memory, the memory and the one or more processors being configured to: identify conflicts on victim resources based at least in part on an aggressor reservation sent by a second UE; and send a resource conflict indication to the second UE via a sidelink feedback channel, indicating at least one of the victim resources or the aggressor reservation, wherein the resource conflict indication is multiplexed on one or more resources available for sidelink feedback.

[0011] In some aspects, a first UE for wireless communication includes: a memory; and one or more processors coupled to the memory, the memory and the one or more processors being configured to: determine that the transmission or reception of a resource conflict indication associated with a second UE conflicts with another communication of the first UE, wherein the resource conflict indication is transmitted or received via a sidelink feedback channel; and transmit or receive at least one of the resource conflict indication or the other communication based at least in part on one or more priority rules.

[0012] In some aspects, a first UE for wireless communication includes: a memory; and one or more processors coupled to the memory, the memory and the one or more processors being configured to: receive from a second UE via a sidelink feedback channel a resource conflict indication indicating at least one of victim resources or attacker reservations sent by the first UE, wherein the resource conflict indication is multiplexed over one or more resources available for sidelink feedback; and perform an action at least in part based on the resource conflict indication.

[0013] In some aspects, a non-transitory computer-readable medium storing a set of instructions for wireless communication includes: one or more instructions that, when executed by one or more processors of a first UE, cause the first UE to: identify a conflict on a victim resource based at least in part on an aggressor reservation sent by a second UE; and send a resource conflict indication to the second UE via a sidelink feedback channel, indicating at least one of the victim resource or the aggressor reservation, wherein the resource conflict indication is multiplexed on one or more resources available for sidelink feedback.

[0014] In some aspects, a non-transitory computer-readable medium storing a set of instructions for wireless communication includes: one or more instructions that, when executed by one or more processors of a first UE, cause the first UE to: determine that the transmission or reception of a resource conflict indication associated with a second UE conflicts with another communication of the first UE, wherein the resource conflict indication is transmitted or received via a sidelink feedback channel; and transmit or receive at least one of the resource conflict indication or the other communication, at least in part based on one or more priority rules.

[0015] In some aspects, a non-transitory computer-readable medium storing a set of instructions for wireless communication includes: one or more instructions that, when executed by one or more processors of a first UE, cause the first UE to: receive, via a sidelink feedback channel, a resource conflict indication from a second UE indicating at least one of victim resources or attacker reservations sent by the first UE, wherein the resource conflict indication is multiplexed over one or more resources available for sidelink feedback; and perform an action at least in part based on the resource conflict indication.

[0016] In some aspects, a first device for wireless communication includes: a unit for identifying a conflict on a victim resource based at least in part on an aggressor reservation transmitted by a second device; and a unit for transmitting a resource conflict indication to the second device via a sidelink feedback channel, indicating at least one of the victim resource or the aggressor reservation, wherein the resource conflict indication is multiplexed on one or more resources available for sidelink feedback.

[0017] In some aspects, a first apparatus for wireless communication includes: a unit for determining whether the transmission or reception of a resource conflict indication associated with a second apparatus conflicts with another communication of the first apparatus, wherein the resource conflict indication is transmitted or received via a sidelink feedback channel; and a unit for transmitting or receiving at least one of the resource conflict indication or the other communication, at least in part based on one or more priority rules.

[0018] In some aspects, a first device for wireless communication includes: a unit for receiving, via a sidelink feedback channel, a resource conflict indication from a second device, indicating at least one of victim resources or perpetrator reservations sent by the first device, wherein the resource conflict indication is multiplexed over one or more resources available for sidelink feedback; and a unit for performing an action at least in part based on the resource conflict indication.

[0019] In some aspects, as fully described herein with reference to the accompanying drawings and description, and as illustrated by the accompanying drawings and description, methods, apparatus, computer program products, non-transitory computer-readable media, user equipment, base stations, nodes, wireless communication devices and / or processing systems are included.

[0020] In general, the aspects include methods, apparatus, systems, computer program products, non-transitory computer-readable media, user equipment, base stations, wireless communication equipment and / or processing systems as fully described herein with reference to the accompanying drawings and description and as shown by the accompanying drawings and description.

[0021] The foregoing has provided a fairly broad overview of the features and technical advantages of examples according to this disclosure in order to better understand the following detailed description. 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 (both their organization and manner of operation) and their associated advantages will be better understood when considered in conjunction with the accompanying drawings, based on the following description. Each drawing in the accompanying drawings is provided for illustrative and descriptive purposes and is not intended to define a limitation of the claims.

[0022] While aspects have been 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 innovations 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 embodiments and other devices based on non-modular components (e.g., end-user devices, vehicles, communication devices, computing devices, industrial devices, retail / purchasing devices, medical devices, or AI-enabled devices). Aspects can be implemented in chip-level components, modular components, non-modular components, non-chip-level components, device-level components, or system-level components. Devices incorporating the described aspects and features may include additional components and features for the implementation and enforcement of the claimed and described aspects. For example, the transmission and reception of wireless signals may include multiple components for analog and digital purposes (e.g., hardware components including antennas, radio frequency (RF) chains, power amplifiers, modulators, buffers, processors, interleavers, adders, or summers). The innovations described herein are intended to be implemented in a variety of devices, chip-level components, systems, distributed arrangements, or end-user devices with different sizes, shapes, and configurations. Attached Figure Description

[0023] To gain a full understanding of the foregoing features of this disclosure, a more specific description of the invention, briefly summarized above, can be obtained by referring to various aspects, some of which are illustrated in the accompanying drawings. However, it should be noted that the drawings illustrate only certain typical aspects of this disclosure and are therefore not intended to limit the scope of the disclosure, as other equally valid aspects are permissible under this description. The same reference numerals in different drawings may identify the same or similar elements.

[0024] Figure 1 This is a diagram illustrating an example of a wireless network according to this disclosure.

[0025] Figure 2 This is a diagram illustrating an example of communication between a base station and a UE in a wireless network according to this disclosure.

[0026] Figure 3 This is a diagram illustrating an example of sidelink communication according to this disclosure.

[0027] Figure 4 This is a diagram illustrating examples of sidelink communication and access link communication according to this disclosure.

[0028] Figure 5 This is a diagram illustrating an example of an aggressor's reservation of resources for victims in accordance with this disclosure.

[0029] Figure 6 This is a diagram illustrating an example of a resource conflict instruction according to this disclosure.

[0030] Figure 7-9 This is a diagram illustrating an example of how a resource conflict indication is transmitted on a side link feedback channel in accordance with the present disclosure.

[0031] Figure 10-11 This is a diagram illustrating an example process associated with transmitting a resource conflict indication on a side link feedback channel, according to the present disclosure.

[0032] Figure 12 This is a diagram illustrating an example process associated with receiving a resource conflict indication on a side link feedback channel, according to the present disclosure.

[0033] Figure 13 This is a block diagram of an example device for wireless communication according to the present disclosure. Detailed Implementation

[0034] The various aspects of this disclosure are described more fully below with reference to the accompanying drawings. However, this disclosure may be embodied in many different forms and should not be construed as limited to any particular structure or function presented throughout this disclosure. Rather, these aspects are provided so that this disclosure will be thorough and complete, and will fully convey the scope of this disclosure to those skilled in the art. Based on the teachings herein, those skilled in the art will understand that the scope of this disclosure is intended to cover any aspect of this disclosure disclosed herein, whether implemented independently of or in combination with any other aspect of this disclosure. For example, an apparatus or a method may be implemented using any number of the aspects set forth herein. Furthermore, the scope of this disclosure is intended to cover such apparatuses or methods implemented using structures, functions, or structures and functions other than or different from the aspects of this disclosure set forth herein. It should be understood that any aspect of this disclosure disclosed herein may be embodied by one or more elements of the claims.

[0035] Several aspects of a telecommunications system will now be described with reference to various devices and techniques. These devices and techniques will be described in detail below and illustrated in the accompanying drawings, through various frames, modules, components, circuits, steps, processes, algorithms, etc. (collectively referred to as “elements”). These elements can be implemented using hardware, software, or a combination thereof. Whether such an element is implemented as hardware or software depends on the specific application and the design constraints imposed on the entire system.

[0036] It should be noted that while this document may use terms commonly associated with 5G or NR radio access technology (RAT) to describe aspects, aspects of this disclosure may be applied to other RATs, such as 3G RAT, 4G RAT and / or RATs after 5G (e.g., 6G).

[0037] Figure 1This is a diagram illustrating an example of a wireless network 100 according to this disclosure. Wireless network 100 may be or may include elements of a 5G (NR) network and / or an LTE network, as well as other examples. Wireless network 100 may include multiple base stations 110 (shown as BS 110a, BS 110b, BS 110c, and BS 110d) and other network entities. A base station (BS) is an entity that communicates with a user equipment (UE) and may also be referred to as an NR BS, Node B, gNB, 5G Node B (NB), access point, Transmit / Receive Point (TRP), etc. Each BS can provide communication coverage for a specific geographic area. In 3GPP, the term "cell" may refer to the coverage area of ​​a BS and / or the BS subsystem serving that coverage area, depending on the context in which the term is used.

[0038] A BS can provide communication coverage for macrocells, picocells, femtocells, and / or another type of cell. A macrocell can cover a relatively large geographic area (e.g., a radius of several kilometers) and can allow unrestricted access by UEs with service subscriptions. A picocell can cover a relatively small geographic area and can allow unrestricted access by UEs with service subscriptions. A femtocell can cover a relatively small geographic area (e.g., a residential area) and can allow restricted access by UEs associated with that femtocell (e.g., UEs in a Closed User Group (CSG)). A BS used for macrocells can be referred to as a macro BS. A BS used for picocells can be referred to as a pico BS. A BS used for femtocells can be referred to as a femtocell BS or a home BS. Figure 1 In the examples shown, BS 110a can be a macro BS for macro cell 102a, BS 110b can be a pico BS for pico cell 102b, and BS 110c can be a femto BS for femto cell 102c. A BS can support one or more (e.g., three) cells. The terms “eNB,” “base station,” “NR BS,” “gNB,” “TRP,” “AP,” “Node B,” “5G NB,” and “cell” are used interchangeably herein.

[0039] In some respects, the cell may not be stationary, and the geographical area of ​​the cell may move depending on the location of the mobile BS. In some respects, BSs may be interconnected with each other and / or with one or more other BSs or network nodes (not shown) in the wireless network 100 using any suitable transport network via various types of backhaul interfaces (such as direct physical connections or virtual networks).

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

[0041] Wireless network 100 can be a heterogeneous network comprising different types of Base Stations (BSs) such as macro BSs, pico BSs, femto BSs, relay BSs, etc. These different types of BSs can have different transmit power levels, different coverage areas, and different effects on interference in wireless network 100. For example, macro BSs can have high transmit power levels (e.g., 5 to 40 watts), while pico BSs, femto BSs, and relay BSs can have lower transmit power levels (e.g., 0.1 to 2 watts).

[0042] Network controller 130 can be coupled to a group of base stations (BSs) and can provide coordination and control for these BSs. Network controller 130 can communicate with the BSs via backhaul. BSs can also communicate with each other via wireless or wired backhaul (e.g., directly or indirectly).

[0043] UE 120 (e.g., 120a, 120b, 120c) may be distributed throughout the wireless network 100, and each UE may be stationary or mobile. UE may also be referred to as an access terminal, terminal, mobile station, user unit, station, etc. UE may be a cellular phone (e.g., a smartphone), personal digital assistant (PDA), wireless modem, wireless communication device, handheld device, laptop computer, cordless phone, wireless local loop (WLL) station, tablet device, camera, gaming device, netbook, smartbook, ultrabook, medical device or apparatus, biometric sensor / device, wearable device (smartwatch, smart clothing, smart glasses, smart wristband, smart jewelry (e.g., smart ring, smart bracelet, etc.)), entertainment device (e.g., music or video device, or satellite radio unit, etc.), vehicle component or sensor, smart meter / sensor, industrial manufacturing equipment, GPS device, or any other suitable device configured to communicate via wireless or wired media.

[0044] Some UEs can be considered Machine-Type Communication (MTC) or Evolved or Enhanced Machine-Type Communication (eMTC) UEs. MTC and eMTC UEs include, for example, robots, drones, remote devices, sensors, meters, monitors, and / or location tags, which can communicate with a base station, another device (e.g., a remote device), or some other entity. Wireless nodes can provide connectivity to or to a network (e.g., a wide area network such as the Internet or cellular networks) via wired or wireless communication links, for example. Some UEs can be considered Internet of Things (IoT) devices, and / or can be implemented as NB-IoT (Narrowband Internet of Things) devices. Some UEs can be considered Customer Premises Equipment (CPE). UE 120 can be included within a housing housing the components of UE 120, such as processor components and / or memory components. In some aspects, the processor components and memory components can be coupled together. For example, the processor components (e.g., one or more processors) and memory components (e.g., memory) can be operatively coupled, communicatively coupled, electronically coupled, and / or electrically coupled.

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

[0046] In some respects, 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 base station 110 as an intermediary for communication 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, etc.) and / or mesh networks. In this case, UE 120 may perform scheduling operations, resource selection operations, and / or other operations described herein as being performed by base station 110.

[0047] In some aspects, the first UE 120a may identify conflicts on victim resources based at least in part on an aggressor reservation sent by the second UE 120e. The first UE 120a may send a resource conflict indication to the second UE 120e via a sidelink feedback channel, indicating at least one of the victim resources or the aggressor reservation. The resource conflict indication may be multiplexed on one or more resources available for sidelink feedback.

[0048] In some aspects, the first UE 120a may determine that the transmission or reception of a resource conflict indication associated with the second UE 120e conflicts with another communication of the first UE 120a. The resource conflict indication may be transmitted or received via a sidelink feedback channel. The first UE 120a may transmit or receive at least one of the resource conflict indication or the other communication based at least in part on one or more priority rules.

[0049] In some aspects, the first UE 120a may receive, via a sidelink feedback channel, a resource conflict indication from the second UE 120e, indicating at least one of a victim resource or an aggressor reservation sent by the first UE 120a. The resource conflict indication may be multiplexed over one or more resources available for sidelink feedback. The first UE 120a may perform actions based at least in part on the resource conflict indication.

[0050] Devices in the wireless network 100 can communicate using the electromagnetic spectrum, which can be subdivided into various categories, bands, channels, etc., based on frequency or wavelength. For example, devices in the wireless network 100 can communicate using an operating band with a first frequency range (FR1) (spanning from 410 MHz to 7.125 GHz), and / or can communicate using an operating band with a second frequency range (FR2) (spanning from 24.25 GHz to 52.6 GHz). The frequencies between FR1 and FR2 are sometimes referred to as intermediate frequencies (IFs). Although a portion of FR1 is greater than 6 GHz, FR1 is generally referred to as the "below 6 GHz" band. Similarly, FR2 is generally referred to as the "millimeter wave" band, although it is different from the extremely high frequency (EHF) band (30 GHz–300 GHz) designated as the "millimeter wave" band by the International Telecommunication Union (ITU). Therefore, unless otherwise explicitly stated, it should be understood that the terms "below 6 GHz" and the like (if used herein) can broadly refer to frequencies below 6 GHz, frequencies within FR1, and / or intermediate frequencies (e.g., above 7.125 GHz). Similarly, unless otherwise explicitly stated, it should be understood that the terms "millimeter wave" and the like (if used herein) can broadly refer to frequencies within the EHF band, frequencies within FR2, and / or intermediate frequencies (e.g., below 24.25 GHz). It is anticipated that the frequencies included in FR1 and FR2 may be modified, and the techniques described herein are applicable to those modified frequency ranges.

[0051] As pointed out above, Figure 1 This is provided as an example. Other examples may differ from the one provided. Figure 1 The example described.

[0052] Figure 2 This is a diagram illustrating an example of communication between a base station 110 and a UE 120 in a wireless network 100 according to the present disclosure. The base station 110 may be equipped with T antennas 234a to 234t, and the UE 120 may be equipped with R antennas 252a to 252r, wherein generally, T ≥ 1 and R ≥ 1.

[0053] At base station 110, transmit processor 220 can receive data for one or more UEs from data source 212, select one or more modulation and coding schemes (MCS) for that UE based at least in part on channel quality indicators (CQI) received from each UE, process (e.g., code and modulate) the data for that UE based at least in part on the MCS selected for each UE, and provide data symbols for all UEs. Transmit processor 220 can also process system information (e.g., semi-static resource allocation information (SRPI)) and control information (e.g., CQI requests, grants, and / or upper-layer signaling), and provide overhead symbols and control symbols. Transmit processor 220 can also generate reference symbols for reference signals (e.g., cell-specific reference signals (CRS) or demodulation reference signals (DMRS)) and synchronization signals (e.g., primary synchronization signal (PSS) or secondary synchronization signal (SSS)). The transmit (TX) multiple-input multiple-output (MIMO) processor 230 can perform spatial processing (e.g., precoding, if applicable) on data symbols, control symbols, overhead symbols, and / or reference symbols, and can provide T output symbol streams to T modulators (MODs) 232a to 232t. Each modulator 232 can (e.g., for OFDM) process its corresponding output symbol stream to obtain an output sample stream. Each modulator 232 can further process (e.g., convert to analog, amplify, filter, and up-convert) the output sample stream to obtain a downlink signal. The T downlink signals from modulators 232a to 232t can be transmitted via T antennas 234a to 234t respectively.

[0054] At UE 120, antennas 252a to 252r can receive downlink signals from base station 110 and / or other base stations, and can provide the received signals to demodulators (DEMODs) 254a to 254r respectively. Each demodulator 254 can adjust (e.g., filter, amplify, down-convert, and digitize) the received signal to obtain an input sample. Each demodulator 254 can further process the input sample (e.g., for OFDM) to obtain a received symbol. MIMO detector 256 can obtain the received symbols from all R demodulators 254a to 254r, perform MIMO detection on the received symbols (if applicable), and provide the detected symbols. Receive processor 258 can process (e.g., demodulate and decode) the detected symbols, provide decoded data for UE 120 to data sink 260, and provide 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 the Reference Signal Received Power (RSRP) parameter, Received Signal Strength Indicator (RSSI) parameter, Reference Signal Received Quality (RSRQ) parameter, and / or CQI parameter, as well as other examples. In some aspects, one or more components of the UE 120 may be included in the housing 284.

[0055] Network controller 130 may include communication unit 294, controller / processor 290, and memory 292. Network controller 130 may include one or more devices, such as those in a core network. Network controller 130 may communicate with base station 110 via communication unit 294.

[0056] Antennas (e.g., antennas 234a to 234t and / or antennas 252a to 252r) may include or be included in the following: one or more antenna panels, antenna groups, antenna element sets, and / or antenna arrays, and other examples. Antenna panels, antenna groups, antenna element sets, and / or antenna arrays may include one or more antenna elements. Antenna panels, antenna groups, antenna element sets, and / or antenna arrays may include coplanar antenna element sets and / or non-coplanar antenna element sets. Antenna panels, antenna groups, antenna element sets, and / or antenna arrays may include antenna elements within a single housing and / or antenna elements within multiple housings. Antenna panels, antenna groups, antenna element sets, and / or antenna arrays may include one or more antenna elements coupled to one or more transmitting and / or receiving components (such as one or more components of 2).

[0057] On the uplink, at UE 120, the transmitting processor 264 can receive and process data from data source 262 and control information from controller / processor 280 (e.g., for reporting RSRP, RSSI, RSRQ, and / or CQI). The transmitting processor 264 can also generate reference symbols for one or more reference signals. Symbols from the transmitting processor 264 can be pre-coded (if applicable) by TX MIMO processor 266, further processed by modulators 254a to 254r (e.g., for DFT-s-OFDM or CP-OFDM), and transmitted to base station 110. In some aspects, the modulator and demodulator (e.g., MOD / DEMOD 254) of UE 120 can be included in the modem of UE 120. In some aspects, UE 120 includes a transceiver. The transceiver may include any combination of antenna 252, modulator and / or demodulator 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 perform aspects of any of the methods described herein (e.g., as referenced). Figure 5-12 (Described).

[0058] At base station 110, uplink signals from UE 120 and other UEs can be received by antenna 234, processed by demodulator 232, detected by MIMO detector 236 (if applicable), and further processed by receiver processor 238 to obtain decoded data and control information transmitted by UE 120. Receiver processor 238 can provide decoded data to data sink 239 and decoded control information to controller / processor 240. Base station 110 may include communication unit 244 and communicate with network controller 130 via communication unit 244. Base station 110 may include scheduler 246 to schedule UE 120 for downlink and / or uplink communication. In some aspects, modulators and demodulators (e.g., MOD / DEMOD 232) of base station 110 may be included in the modem of base station 110. In some aspects, base station 110 includes a transceiver. The transceiver may include any combination of antenna 234, modulator and / or demodulator 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 perform aspects of any of the methods described herein (e.g., as referenced). Figure 5-12 (Described).

[0059] The controller / processor 240 of base station 110, the controller / processor 280 of UE 120 and / or Figure 2 Any other components may perform one or more techniques associated with transmitting resource conflict indications on the sidelink feedback channel, as described in more detail elsewhere herein. For example, the controller / processor 240 of base station 110, the controller / processor 280 of UE 120, and / or Figure 2 Any other component can perform or direct, for example Figure 10 Process 1000 Figure 11 Process 1100 Figure 12 The operation of process 1200 and / or other processes as described herein. Memory 242 and 282 may store data and program code for base station 110 and UE 120, respectively. In some aspects, memory 242 and / or memory 282 may include a non-transitory computer-readable medium storing one or more instructions (e.g., code and / or program code) for wireless communication. For example, one or more instructions, when executed by one or more processors of base station 110 and / or UE 120 (e.g., directly, or after compilation, translation, and / or interpretation), may cause one or more processors, UE 120, and / or base station 110 to perform or instruct, for example... Figure 10 Process 1000 Figure 11 Process 1100 Figure 12 The operation of process 1200 and / or other processes as described herein. In some aspects, execution instructions may include run instructions, translation instructions, compilation instructions and / or interpretation instructions, and other examples.

[0060] In some aspects, the first UE (e.g., UE 120) may include: a unit for identifying conflicts on victim resources based at least in part on an aggressor reservation transmitted by the second UE; and / or a unit for transmitting a resource conflict indication to the second UE via a sidelink feedback channel, indicating at least one of the victim resources or the aggressor reservation, wherein the resource conflict indication is multiplexed on one or more resources available for sidelink feedback. In some aspects, such a unit may include a combination of Figure 2 One or more components of the described UE 120, such as controller / processor 280, transmit processor 264, TX MIMO processor 266, MOD 254, antenna 252, DEMOD 254, MIMO detector 256 and / or receive processor 258.

[0061] In some aspects, the first UE (e.g., UE 120) may include: a unit for determining whether the transmission or reception of a resource conflict indication associated with the second UE conflicts with another communication of the first UE, wherein the resource conflict indication is transmitted or received via a sidelink feedback channel; and / or a unit for transmitting or receiving at least one of the resource conflict indication or another communication based at least in part on one or more priority rules. In some aspects, such a unit may include a combination of Figure 2 One or more components of the described UE 120, such as controller / processor 280, transmit processor 264, TXMIMO processor 266, MOD 254, antenna 252, DEMOD 254, MIMO detector 256 and / or receive processor 258.

[0062] In some aspects, the first UE (e.g., UE 120) may include: a unit for receiving, via a sidelink feedback channel, a resource conflict indication from the second UE, indicating at least one of a victim resource or an aggressor reservation sent by the first UE, wherein the resource conflict indication is multiplexed over one or more resources available for sidelink feedback; and / or a unit for performing an action at least in part based on the resource conflict indication. In some aspects, such a unit may include a combination of Figure 2 One or more components of the described UE 120, such as controller / processor 280, transmit processor 264, TX MIMO processor 266, MOD 254, antenna 252, DEMOD 254, MIMO detector 256 and / or receive processor 258.

[0063] Although Figure 2 The boxes in the diagram are shown as different components, but the functions described above with respect to these boxes can be implemented in a single hardware, software, or combined component, or in various combinations of components. For example, the functions described with respect to transmit processor 264, receive processor 258, and / or TX MIMO processor 266 can be performed by or under the control of controller / processor 280.

[0064] As pointed out above, Figure 2 This is provided as an example. Other examples may differ from the one provided. Figure 2 The example described.

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

[0066] like Figure 3As 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 (e.g., which may include V2V communication, V2I communication, and / or vehicle-to-pedestrian (V2P) communication), mesh networking, etc. In some aspects, UE 305 (e.g., UE 305-1 and / or UE 305-2) can correspond to one or more other UEs described elsewhere herein, such as UE 120. In some aspects, the 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). Alternatively, UE 305 may use Global Navigation Satellite System (GNSS) timing to synchronize the timing of transmission time intervals (TTIs) (e.g., frames, subframes, time slots, and / or symbols).

[0067] like Figure 3 As further shown, one or more sidelink channels 310 may include a Physical Sidelink Control Channel (PSCCH) 315, a Physical Sidelink Shared Channel (PSSCH) 320, and / or a Physical Sidelink Feedback Channel (PSFCH) 325. Similar to the Physical Downlink Control Channel (PDCCH) and / or Physical Uplink Control Channel (PUCCH) used for cellular communication with base station 110 via an access link or access channel, PSCCH 315 may be used to transmit control information. Similar to the Physical Downlink Shared Channel (PDSCH) and / or Physical Uplink Shared Channel (PUSCH) used for cellular communication with base station 110 via an access link or access channel, PSSCH 320 may be used to transmit data. For example, PSCCH 315 may carry sidelink control information (SCI) 330, which may indicate various control information for sidelink communication, such as one or more resources (e.g., time resources, frequency resources, and / or spatial resources), wherein a transport block (TB) 335 may be carried on PSSCH 320. TB 335 may include data. PSFCH 325 may be used to transmit side-link feedback 340, such as Hybrid Automatic Repeat Request (HARQ) feedback (e.g., Acknowledgment or Negative Acknowledgment (ACK / NACK) information), Transmit Power Control (TPC), and / or Scheduling Request (SR).

[0068] In some aspects, one or more sidelink channels 310 may use resource pooling. For example, scheduling assignments may be transmitted across time using specific resource blocks (RBs) in a subchannel (e.g., included in SCI 330). In some aspects, data transmissions associated with a scheduling assignment (e.g., on PSSCH 320) may occupy adjacent RBs in the same subframe as the scheduling assignment (e.g., using frequency division multiplexing). In some aspects, scheduling assignments and associated data transmissions are not transmitted on adjacent RBs.

[0069] In some aspects, UE 305 may operate using a transmission mode in which resource selection and / or scheduling is performed by UE 305 (e.g., instead of base station 110). In some aspects, UE 305 may perform resource selection and / or scheduling by sensing the availability of transmission channels. For example, UE 305 may measure RSSI parameters (e.g., sidelink RSSI (S-RSSI) parameters) associated with various sidelink channels, may measure RSRP parameters (e.g., PSSCH-RSRP parameters) associated with various sidelink channels, may measure RSRQ parameters (e.g., PSSCH-RSRQ parameters) associated with various sidelink channels, and may select the channel for transmissions used for sidelink communication based at least in part on these measurements.

[0070] Alternatively, UE 305 may use SCI 330 received in PSCCH 315 to perform resource selection and / or scheduling, SCI 330 indicating occupied resources and / or channel parameters. Alternatively, UE 305 may perform resource selection and / or scheduling by determining the Channel Busy Rate (CBR) associated with various sidelink channels, which can be used for rate control (e.g., by indicating the maximum number of resource blocks that UE 305 can use for a particular set of subframes).

[0071] In a transport mode where resource selection and / or scheduling is performed by UE 305, UE 305 can generate a sidelink grant and can send the grant in SCI 330. The sidelink grant can indicate one or more parameters (e.g., transport parameters) for an upcoming sidelink transport, such as one or more resource blocks (e.g., for TB 335) to be used for the upcoming sidelink transport on PSSCH 320, one or more subframes to be used for the upcoming sidelink transport, and / or the modulation and coding scheme (MCS) to be used for the upcoming sidelink transport. In some aspects, UE 305 can generate a sidelink grant indicating one or more parameters for semi-persistent scheduling (SPS), such as the period of the sidelink transport. Alternatively or concurrently, UE 305 can generate a sidelink grant for event-driven scheduling (e.g., for on-demand sidelink messages).

[0072] As pointed out above, Figure 3 This is provided as an example. Other examples may differ from the one provided. Figure 3 The example described.

[0073] Figure 4 This is a diagram illustrating example 400 of sidelink communication and access link communication according to this disclosure.

[0074] 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. Further, in some sidelink modes, base station 110 may communicate with Tx / Rx UE 405 via a first access link. Alternatively, in some sidelink modes, base station 110 may communicate with Rx / Tx UE 410 via a second access link. Tx / Rx UE 405 and / or Rx / Tx UE 410 may correspond to one or more UEs described elsewhere herein, such as... Figure 1 UE 120. Therefore, the direct link between UE 120 (e.g., via the PC5 interface) can be referred to as a sidelink, and the direct link between base station 110 and UE 120 (e.g., via the Uu interface) can be referred to as an access link. Sidelink communication can be transmitted via the sidelink, and access link communication can be transmitted via the access link. Access link communication can be downlink communication (from base station 110 to UE 120) or uplink communication (from UE 120 to base station 110).

[0075] As pointed out above, Figure 4This is provided as an example. Other examples may differ from the one provided. Figure 4 The example described.

[0076] Figure 5 This is a diagram illustrating example 500 of an aggressor's reservation of victim resources in accordance with this disclosure.

[0077] The UE can transmit reservations for sidelink resource allocation in a new radio sidelink. Sidelink resource allocation can be on a per-subchannel basis in the frequency domain. Sidelink resource allocation can be restricted to a single time slot in the time domain. In other words, sidelink resources can include frequency domain resources (e.g., one or more subchannels) and / or time domain resources (e.g., one or more time slots). The UE can transmit reservations in previously reserved resources, and these reservations can be reserved in sidelink resources that are up to two time slots later than previously reserved resources in which the UE transmits reservations. The UE can transmit reservations for sidelink resources in sidelink control information (SCI) via the physical sidelink control channel (PSCCH).

[0078] like Figure 5 As shown, a first UE (UE 1) can send a first reservation 502 for resource allocation, and a second UE (UE 2) can send a second reservation 504 for resource allocation. For example, the first UE can send the first reservation 502 to reserve two sidelink resources that are later in time, and the second UE can send the second reservation 504 to reserve two sidelink resources that are later in time. In this example, the first UE and the second UE may attempt to reserve the same sidelink resource. This same sidelink resource can be considered the victim resource 506, which is the resource involved in the conflict. The first reservation 502 sent by the first UE or the second reservation 504 sent by the second UE can be considered an aggressor reservation due to a conflict between the first UE and the second UE regarding the victim resource 506.

[0079] In some respects, a collision or conflict may involve a complete overlap of frequencies between resources (e.g., between two resources). Alternatively, a collision or conflict may involve a partial overlap of frequencies between resources.

[0080] As pointed out above, Figure 5 This is provided as an example. Other examples may differ from the one provided. Figure 5 The example described.

[0081] Figure 6 This is a diagram illustrating example 600 of a resource conflict instruction according to this disclosure.

[0082] In some respects, a first UE may send a resource conflict indication to a second UE, and vice versa. The resource conflict indication may indicate a conflicting sidelink resource (e.g., a victim resource) between the first UE and the second UE. Sidelink resources may conflict in the time domain and / or the frequency domain. Alternatively, the resource conflict indication may indicate a reservation (e.g., an aggressor reservation) that leads to the conflict between the first UE and the second UE. In other words, the resource conflict indication may be a sequence indicating a victim resource, or it may be a sequence indicating an aggressor reservation.

[0083] In some aspects, reservations can be sent or victim resources can occur in slot i and subchannel j of the PSSCH, where i and j are positive integers greater than or equal to one. Sideline resources of the PSFCH can be used to send resource conflict indications associated with reservations or victim resources. The UE can use PSSCH-PSFCH resource mapping techniques to identify the sideline resources used to send resource conflict indications. Sideline resources can be one or more Physical Resource Blocks (PRBs) of the PSFCH. One PRB can be used when performing a one-to-one mapping at the UE, or multiple PRBs can be used when performing a one-to-many mapping at the UE.

[0084] The first Z PRBs can be associated with the first subchannel in the first time slot associated with the PSFCH, and / or the second Z PRBs can be associated with the first subchannel in the second time slot associated with the PSFCH, where Z is a positive integer greater than or equal to one. Sidelink resources of the PSFCH with an index ((K+M)mod(Z*Y)) are used for PSFCH transmission of the Rx UE. K is the Layer 1 (L1) source identifier (ID) of the associated PSCCH or associated PSSCH (which carries reservations). For unicast and multicast feedback (e.g., unicast and multicast feedback option 1), M equals 0, or M is the Rx UE member ID for multicast feedback option 2. Y is the number of cyclic shift pairs used for the PSFCH.

[0085] As shown by reference numeral 602 in the attached figure, victim resources can occur in time slot i and sub-channel j of the PSSCH. In this case, the UE can perform PSSCH-to-PSFCH resource mapping, which identifies the sideline resources of the PSSCH to be used for transmitting resource conflict indications from the UE. The resource conflict indication can indicate victim resources in the PSSCH that will occur later in time relative to the transmission of the resource conflict indication. The sideline resources mapped to the PSSCH can be associated with sub-channels in the PSSCH time slot. Sideline resources can be used for each sub-channel of the PSSCH to indicate the source ID carrying the reserved PSSCH.

[0086] As shown by reference numeral 604 in the attached figure, an aggressor reservation can occur in slot i and subchannel j of the PSSCH. In this case, the UE can perform a PSSCH-to-PSFCH resource mapping, which identifies the sideline resources of the PSFCH to be used for transmitting resource conflict indications from the UE. The resource conflict indication can indicate an aggressor reservation in the PSSCH that will occur earlier in time than the transmission of the resource conflict indication. The sideline resources mapped to the PSFCH can be indicated using a cyclic shift to indicate the reservation index associated with the aggressor reservation. For example, the UE can transmit a first reservation that does not cause a resource conflict and a second reservation that does cause a resource conflict (e.g., victim resources). In this case, a cyclic shift can be used to indicate the reservation index of the first reservation or the second reservation that will cause a resource conflict.

[0087] In some respects, regardless of whether the resource allocation is for the victim and / or the aggressor, the resource conflict indication can be a sequence-based resource conflict indication. The sequence-based resource conflict indication used in the new radio sidelink can be similar to the sequence-based HARQ-ACK indication in the new radio sidelink. For example, the sidelink resources mapped by the PSFCH can be used to send the HARQ-ACK indication in the new radio sidelink to the UE.

[0088] As pointed out above, Figure 6 This is provided as an example. Other examples may differ from the one provided. Figure 6 The example described.

[0089] In some cases, the UE can perform PSSCH-to-PSFCH resource mapping, which identifies the sideline resources of the PSFCH used to transmit resource conflict indications from the UE. However, when identifying sideline resources used for transmitting resource conflict indications, sideline resources dedicated to sideline feedback may not be mapped. Since the UE may not be configured to transmit resource conflict indications on sideline resources dedicated to sideline feedback, such sideline resources may not be mapped. Therefore, the UE may not be able to transmit resource conflict indications on certain sideline resources. In other words, when performing PSSCH-to-PSFCH resource mapping, the UE may be limited in the sideline resources that can be used to transmit resource conflict indications.

[0090] In various aspects of the techniques and apparatus described herein, the UE can multiplex resource conflict indications on sidelink resources dedicated to sidelink feedback. In other words, the UE can transmit resource conflict indications on sidelink resources dedicated to sidelink feedback (e.g., the sidelink resources can be used for sidelink feedback). The resource conflict indication can be a resource conflict indication and / or an already reserved indication, and can be transmitted on symbols with PSFCH resources. The UE can transmit both sidelink feedback and resource conflict indications on the sidelink resources of the PSFCH. Therefore, because sidelink resources dedicated to sidelink feedback are not limited to sidelink feedback but can also be used to transmit resource conflict indications, UE performance can be improved.

[0091] Figure 7 This is a diagram illustrating an example 700 associated with transmitting a resource conflict indication on a side link feedback channel, according to the present disclosure.

[0092] As shown by reference numeral 702 in the attached figure, the first UE (UE 1) can identify, at least in part, a conflict on victim resources based on an aggressor reservation sent by the second UE (UE 2) (e.g., using antenna 252, demodulator 254, MIMO detector 256, receive processor 258, transmit processor 264, TX MIMO processor 266, modulator 254, controller / processor 280, memory 282, receive component 1302, and / or transmit component 1304). In other words, the second UE can send a reservation, and the first UE can detect that the reservation sent by the second UE is an aggressor reservation because the reservation from the second UE causes a conflict on victim resources. Victim resources can be associated with time-frequency locations in the PSSCH. For example, victim resources can be associated with slot i and subchannel j in the PSSCH.

[0093] As shown by reference numeral 704 in the attached figure, the first UE may generate a resource conflict indication (e.g., using antenna 252, demodulator 254, MIMO detector 256, receive processor 258, transmit processor 264, TXMIMO processor 266, modulator 254, controller / processor 280, memory 282, receive component 1302, and / or transmit component 1304) based at least in part on the identification of conflicts on victim resources. The resource conflict indication may indicate victim resources and / or aggressor reservations sent by the second UE. The resource conflict indication may be a sequence-based indication and may include resource conflict indications and / or indications that have already been reserved.

[0094] In some aspects, when performing resource conflict indication mapping, the first UE may map the resource conflict indication to a sidelink resource not used for sidelink feedback. When performing resource conflict indication mapping for unicast and multicast transmissions (e.g., unicast and multicast feedback option 1), the resource conflict indication may be mapped to a sidelink resource not used for sidelink feedback.

[0095] In some aspects, the first UE may map a resource conflict indication to a sideline resource not associated with feedback regarding a transmission (e.g., data transmission) utilizing resources reserved for the aggressor or victim. For example, the conflict indication signal may be mapped to a PSFCH resource not used for sideline feedback of the PSCCH or PSSCH involved in the conflict. Alternatively, the resource conflict indication may be mapped to a sideline resource associated with feedback regarding a transmission utilizing resources reserved for the aggressor or victim. For example, the conflict indication signal may be mapped to a PSFCH resource used for sideline feedback of the PSCCH or PSSCH involved in the conflict.

[0096] In some aspects, the first UE may use a sequence different from the sequence used to generate feedback regarding transmissions utilizing resources reserved by the aggressor or the victim. For example, the resource conflict indication may use a sequence orthogonal to the sequence used to generate the feedback. Thus, the first UE may use sidelink resources to transmit the resource conflict indication and feedback regarding the aggressor's reservation.

[0097] In some respects, the first UE may use an extended sequence to generate a resource conflict indication. The extended sequence can be an extension of the sequence used to generate feedback on transmissions utilizing resources reserved by the aggressor or the victim. In other words, the extended sequence may be larger (e.g., including more PRBs) compared to the sequence used to generate the feedback. The extended sequence can be larger than one PRB, allowing it to span multiple PRBs.

[0098] In some respects, the first UE may determine that one or more priority rules are not applicable at the first UE before sending a resource conflict indication. For example, the first UE may determine that one or more priority rules are not applicable because the first UE has not attempted to receive feedback and send a resource conflict indication on the sideline resources of the PSFCH, send feedback and receive a resource conflict indication on the sideline resources of the PSFCH, or send feedback and send a resource conflict indication on the sideline resources of the PSFCH.

[0099] As shown by reference numeral 706 in the attached figure, the first UE can send a resource conflict indication (e.g., using antenna 252, demodulator 254, MIMO detector 256, receiver processor 258, transmitter processor 264, TX MIMO processor 266, modulator 254, controller / processor 280, memory 282, receiver component 1302, and / or transmitter component 1304) to the second UE via the PSFCH. The resource conflict indication sent via the PSFCH can indicate victim resources and / or attacker reservations. The first UE can multiplex the resource conflict indication on one or more sidelink resources available for sidelink feedback. For example, the first UE can multiplex the resource conflict indication on one or more PRBs available for sidelink feedback on the PSFCH.

[0100] As shown by reference numeral 708 in the accompanying drawings, the second UE can resolve conflicts on victim resources (e.g., using antenna 252, demodulator 254, MIMO detector 256, receive processor 258, transmit processor 264, TX MIMO processor 266, modulator 254, controller / processor 280, memory 282, receive component 1302, and / or transmit component 1304) at least in part based on a resource conflict indication received from the first UE. For example, the second UE can perform conflict resolution actions, which may include discarding communication on the victim resource, delaying communication on the victim resource, and / or rescheduling communication on the victim resource. Communication may include communication intended to be transmitted from the second UE using the victim resource. However, after receiving a resource conflict indication from the first UE, the second UE can perform actions such that communication is not performed using the victim resource.

[0101] In some aspects, the first UE may be a half-duplex UE and may not be permitted to perform both transmission and reception, or both transmissions or both receptions, on the sideline resources of the PSFCH. The first UE can identify conflicts between the transmission or reception of a resource conflict indication and the transmission or reception of another communication, such as feedback. The first UE can identify conflicts when it is scheduled to receive feedback and transmit a resource conflict indication on the sideline resources of the PSFCH. The first UE can identify conflicts when it is scheduled to transmit feedback and receive a resource conflict indication on the sideline resources of the PSFCH. The first UE can identify conflicts when it is scheduled to transmit feedback and transmit a resource conflict indication on the sideline resources of the PSFCH.

[0102] As shown by reference numeral 710 in the accompanying drawings, the first UE can resolve conflicts at least in part by applying one or more priority rules (e.g., using antenna 252, demodulator 254, MIMO detector 256, receive processor 258, transmit processor 264, TXMIMO processor 266, modulator 254, controller / processor 280, memory 282, receive component 1302, and / or transmit component 1304). The first UE can apply priority rules to resolve conflicts between the transmission of a resource conflict indication and another communication of the first UE (such as feedback). The first UE can apply priority rules to resolve conflicts between receiving feedback and transmitting a resource conflict indication on the sideline resources of the PSFCH. The first UE can apply priority rules to resolve conflicts between transmitting feedback and receiving a resource conflict indication on the sideline resources of the PSFCH. The first UE can apply priority rules to resolve conflicts between transmitting feedback and transmitting a resource conflict indication on the sideline resources of the PSFCH.

[0103] In some aspects, priority rules can instruct a first UE to transmit a resource conflict indication and other communications (such as feedback) associated with a higher priority level. For example, the first UE may determine, at least in part, based on priority rules, that receiving feedback is associated with a higher priority than transmitting a resource conflict indication on a sideline resource of the PSFCH, or vice versa.

[0104] In some aspects, the first UE can resolve conflicts by applying priority rules before sending a resource conflict indication, as shown by reference numeral 708. For example, based at least in part on priority rules, the first UE can determine not to receive feedback or not to send feedback, and instead send a resource conflict indication to the second UE on the sideline resources of the PSFCH.

[0105] In some respects, the first UE can resolve conflicts at least in part based on its ability to perform concurrent transmission or reception. For example, when resolving a conflict between transmitting feedback and transmitting resource conflict indication on sidelink resources, the first UE can perform the highest priority transmission based on its capabilities.

[0106] In some aspects, one or more priority rules may be based at least in part on the priority level of the feedback, wherein the priority level may be based at least in part on the priority level of the PSCCH or PSSCH associated with the feedback. In other words, the first UE may determine the priority of the feedback based at least in part on the associated PSCCH or associated PCCH.

[0107] In some aspects, one or more priority rules may be based at least in part on the priority level of a resource conflict indication. The priority level of a resource conflict indication may be based at least in part on the priority level of a PSCCH or PSSCH associated with the resource conflict indication. In other words, the first UE may determine the priority of the resource conflict indication at least in part based on the associated PSCCH or associated PSSCH. Alternatively or additionally, the priority level of the resource conflict indication may be pre-configured at the first UE. For example, the first UE may receive configuration information indicating the priority level of the resource conflict indication (e.g., from a base station, a second UE, or another device such as another UE).

[0108] In some aspects, the first UE can resolve conflicts at least in part based on one or more priority level thresholds associated with a resource conflict indication or feedback. Priority level thresholds can be configured for the resource conflict indication and / or feedback. In other words, the first UE can determine whether to send or receive a resource conflict indication and / or feedback based at least in part on priority level thresholds. The first UE can determine not to send or receive a resource conflict indication at least in part on the fact that the priority level of the resource conflict indication fails to meet the priority level threshold. The first UE can determine not to send or receive feedback at least in part on the fact that the priority level of the feedback fails to meet the priority level threshold.

[0109] As pointed out above, Figure 7 This is provided as an example. Other examples may differ from the one provided. Figure 7 The example described.

[0110] Figure 8 This is a diagram illustrating an example 800 associated with transmitting a resource conflict indication on a side link feedback channel.

[0111] like Figure 8 As shown, victim resources can occur in slot i or subchannel j of the PSSCH. The resource conflict indication 802 used to indicate victim resources can be mapped to side link resources in the PSFCH that are not used for feedback. In some cases, the resource conflict indication 802 used to indicate victim resources can be mapped to side link resources in the PSFCH that are not used for feedback (e.g., for unicast and multicast feedback option 1).

[0112] As pointed out above, Figure 8 This is provided as an example. Other examples may differ from the one provided. Figure 8 The example described.

[0113] Figure 9 This is a diagram illustrating example 900 associated with transmitting a resource conflict indication on a side link feedback channel. Example 900 may include examples 902, 904, and 906 associated with transmitting a resource conflict indication on a side link feedback channel.

[0114] As shown by reference numeral 902 in the attached figure, the resources reserved by the aggressor that will cause a collision can occur in time slot i or subchannel j of the PSSCH. The collision indication 908, used to indicate the resources reserved by the aggressor, can be mapped to sidelink resources in the PSFCH that are not used for feedback. Feedback can be associated with resources in the PSCCH or PSSCH involved in the collision.

[0115] As indicated by reference numeral 904 in the attached figure, the resources reserved by the aggressor that will cause a collision can occur in time slot i or subchannel j of the PSSCH. The collision indication 908, used to indicate the resources reserved by the aggressor, can be mapped to sidelink resources in the PSFCH for feedback. The feedback can be associated with resources of the PSCCH or PSSCH involved in the collision.

[0116] As shown by reference numeral 906 in the attached figure, the resources reserved by the aggressor that will cause a conflict can occur in time slot i and subchannel j of the PSSCH. A resource conflict indication 908, used to indicate the resource reservation by the aggressor, can be mapped to sidelink resources in the PSFCH used for feedback. The resource conflict indication 908 can be a sequence with a length greater than one PRB (e.g., two PRBs).

[0117] As pointed out above, Figure 9 This is provided as an example. Other examples may differ from the one provided. Figure 9 The example described.

[0118] Figure 10 This is a diagram illustrating an example process 1000 performed, for example, by a first UE according to this disclosure. Example process 1000 is an example in which a UE (e.g., UE 120) performs an operation associated with transmitting a resource conflict indication on a side link feedback channel.

[0119] like Figure 10As shown, in some aspects, process 1000 may include: identifying a conflict on victim resources based at least in part on an aggressor reservation sent by the second UE (box 1010). For example, the first UE (e.g., using antenna 252, demodulator 254, MIMO detector 256, receive processor 258, transmit processor 264, TX MIMO processor 266, modulator 254, controller / processor 280 and / or memory 282) may identify a conflict on victim resources based at least in part on an aggressor reservation sent by the second UE, as described above regarding Figure 7 The figure is described by reference numeral 702.

[0120] like Figure 10 As further shown, in some aspects, process 1000 may include: sending a resource conflict indication to a second UE via a sidelink feedback channel, indicating at least one of victim resources or attacker reservations, wherein the resource conflict indication is multiplexed on one or more resources available for sidelink feedback (box 1020). For example, a first UE (e.g., using antenna 252, transmit processor 264, TX MIMO processor 266, modulator 254, controller / processor 280 and / or memory 282) may send a resource conflict indication to the second UE via a sidelink feedback channel, indicating at least one of victim resources or attacker reservations, wherein the resource conflict indication is multiplexed on one or more resources available for sidelink feedback, as described above regarding... Figure 7 The figure is described by reference numeral 706.

[0121] Process 1000 may include additional aspects, such as any single aspect or any combination thereof described below and / or in conjunction with one or more other process descriptions elsewhere described herein.

[0122] In the first aspect, the resource conflict indication is mapped to a resource not used for sidelink feedback when the mapping of the resource conflict indication is executed. In the second aspect, either alone or in combination with the first aspect, the resource conflict indication is mapped to a resource not associated with feedback regarding transmissions utilizing resources reserved by the aggressor or the victim. In the third aspect, either alone or in combination with one or more of the first and second aspects, the resource conflict indication is mapped to a resource associated with feedback regarding transmissions utilizing resources reserved by the aggressor or the victim.

[0123] In the fourth aspect, either alone or in combination with one or more of the first to third aspects, process 1000 includes: generating a resource conflict indication using a sequence different from the sequence used to generate feedback for transmissions that exploit resources reserved by the aggressor or the victim. In the fifth aspect, either alone or in combination with one or more of the first to fourth aspects, process 1000 includes: generating a resource conflict indication using an extended sequence, wherein the extended sequence is extended relative to the sequence used to generate feedback for transmissions that exploit resources reserved by the aggressor or the victim. In the sixth aspect, either alone or in combination with one or more of the first to fifth aspects, the extended sequence spans multiple resource blocks.

[0124] In the seventh aspect, either alone or in combination with one or more of the first to sixth aspects, process 1000 includes: identifying a conflict between the transmission of the resource conflict indication and another communication of the first UE; and resolving the conflict at least in part based on one or more priority rules, wherein sending the resource conflict indication is at least in part based on resolving the conflict. In the eighth aspect, either alone or in combination with one or more of the first to seventh aspects, one or more priority rules instruct the execution of the transmission of the resource conflict indication and another communication associated with the highest priority level.

[0125] In the ninth aspect, conflict resolution, either alone or in combination with one or more of the first to eighth aspects, is based at least in part on the ability of the first UE to perform concurrent transmission or reception. In the tenth aspect, either alone or in combination with one or more of the first to ninth aspects, one or more priority rules are based at least in part on the priority level of another communication, wherein the priority level is at least in part based on the priority level of the sidelink control channel or sidelink shared channel associated with the other communication.

[0126] In the eleventh aspect, either alone or in combination with one or more of the first to tenth aspects, process 1000 includes: receiving configuration information indicating a priority level of a resource conflict indication, wherein one or more priority rules are at least partially based on the priority level of the resource conflict indication. In the twelfth aspect, either alone or in combination with one or more of the first to eleventh aspects, one or more priority rules are at least partially based on the priority level of the resource conflict indication, wherein the priority level is at least partially based on the priority level of a sidelink control channel or a sidelink shared channel associated with the resource conflict indication. In the thirteenth aspect, either alone or in combination with one or more of the first to twelfth aspects, conflict resolution is at least partially based on one or more priority level thresholds associated with the resource conflict indication or another communication.

[0127] Although Figure 10 An example box of process 1000 is shown, but in some aspects, process 1000 may include... Figure 10 The boxes depicted in the diagram are compared to additional boxes, fewer boxes, different boxes, or boxes arranged in a different manner. Alternatively, two or more boxes in process 1000 may be executed in parallel.

[0128] Figure 11 This is a diagram illustrating an example process 1100 performed, for example, by a first UE according to this disclosure. Example process 1100 is an example in which the first UE (e.g., UE 120) performs operations associated with transmitting a resource conflict indication on a side link feedback channel.

[0129] like Figure 11 As shown, in some aspects, process 1100 may include: determining that the transmission or reception of a resource conflict indication associated with the second UE is in conflict with another communication conflict with the first UE, wherein the resource conflict indication is transmitted or received via a sidelink feedback channel (block 1110). For example, the first UE (e.g., using antenna 252, demodulator 254, MIMO detector 256, receive processor 258, transmit processor 264, TX MIMO processor 266, modulator 254, controller / processor 280 and / or memory 282) may determine that the transmission or reception of a resource conflict indication associated with the second UE is in conflict with another communication conflict with the first UE, wherein the resource conflict indication is transmitted or received via a sidelink feedback channel, as described above regarding Figure 7 The figure is described by reference numeral 702.

[0130] like Figure 11 As further shown, in some aspects, process 1100 may include: transmitting or receiving at least one of a resource conflict indication or another communication based at least in part on one or more priority rules (block 1120). For example, a first UE (e.g., using antenna 252, transmit processor 264, TX MIMO processor 266, modulator 254, controller / processor 280, and / or memory 282) may transmit or receive at least one of a resource conflict indication or another communication based at least in part on one or more priority rules, as described above regarding Figure 7 The figure is described by reference numeral 706.

[0131] Process 1100 may include additional aspects, such as any single aspect or any combination thereof described below and / or in conjunction with one or more other processes described elsewhere herein.

[0132] In the first aspect, one or more priority rules instruct the transmission of resource conflict indications and another communication associated with the highest priority level. In the second aspect, either alone or in combination with the first aspect, one or more priority rules are based at least in part on the first UE's ability to perform concurrent transmission or reception.

[0133] In the third aspect, either alone or in combination with one or more aspects of the first and second aspects, one or more priority rules are at least partially based on the priority level of another communication, wherein the priority level is at least partially based on the priority level of a sidelink control channel or a sidelink shared channel associated with the other communication. In the fourth aspect, either alone or in combination with one or more aspects of the first to third aspects, process 1100 includes: receiving configuration information indicating a priority level of a resource conflict indication, wherein one or more priority rules are at least partially based on the priority level of the resource conflict indication.

[0134] In the fifth aspect, either alone or in combination with one or more of the first to fourth aspects, one or more priority rules are based at least in part on the priority level of the resource conflict indication, wherein the priority level is at least in part based on the priority level of the sidelink control channel or the sidelink shared channel associated with the resource conflict indication. In the sixth aspect, either alone or in combination with one or more of the first to fifth aspects, process 1100 includes: determining whether to transmit or receive at least one of the resource conflict indication or another communication, at least in part based on a threshold priority level.

[0135] In the seventh aspect, determining whether to send or receive at least one of the resource conflict indications or other communications, either alone or in combination with one or more of the first to sixth aspects, based at least in part on a threshold priority level, further includes: determining not to send or receive the resource conflict indication based at least in part on the fact that the priority level of the resource conflict indication fails to meet the threshold priority level. In the eighth aspect, determining whether to send or receive at least one of the resource conflict indications or other communications, either alone or in combination with one or more of the first to seventh aspects, based at least in part on a threshold priority level, further includes: determining not to send or receive the other communication based at least in part on the fact that the priority level of the other communication fails to meet the threshold priority level.

[0136] Although Figure 11 An example box of process 1100 is shown, but in some aspects, process 1100 may include... Figure 11 The boxes depicted in the diagram are compared to additional boxes, fewer boxes, different boxes, or boxes arranged in a different manner. Alternatively, two or more boxes in process 1100 may be executed in parallel.

[0137] Figure 12 This is a diagram illustrating an example process 1200 performed, for example, by a first UE according to this disclosure. Example process 1200 is an example in which the first UE (e.g., UE 120) performs operations associated with receiving a resource conflict indication on a side link feedback channel.

[0138] like Figure 12 As shown, in some aspects, process 1200 may include: receiving from a second UE via a sidelink feedback channel a resource conflict indication indicating at least one of victim resources or attacker reservations sent by a first UE, wherein the resource conflict indication is multiplexed on one or more resources available for sidelink feedback (block 1210). For example, the first UE (e.g., using antenna 252, demodulator 254, MIMO detector 256, receiver processor 258, controller / processor 280, and / or memory 282) may receive from the second UE via a sidelink feedback channel a resource conflict indication indicating at least one of victim resources or attacker reservations sent by the first UE, wherein the resource conflict indication is multiplexed on one or more resources available for sidelink feedback, as described above regarding... Figure 7 The figure is described by reference numeral 706.

[0139] like Figure 12 As further shown, in some aspects, process 1200 may include performing actions at least in part based on resource conflict indications (block 1220). For example, a first UE (e.g., using antenna 252, demodulator 254, MIMO detector 256, receive processor 258, transmit processor 264, TX MIMO processor 266, modulator 254, controller / processor 280 and / or memory 282) may perform actions at least in part based on resource conflict indications, as described above regarding Figure 7 The figure is described by reference numeral 708.

[0140] Process 1200 may include additional aspects, such as any single aspect or any combination thereof described below and / or in conjunction with one or more other processes described elsewhere herein.

[0141] In the first aspect, the resource conflict indication is mapped to a resource not used for sidelink feedback when the mapping of the resource conflict indication is executed. In the second aspect, either alone or in combination with the first aspect, the resource conflict indication is mapped to a resource not associated with feedback regarding transmissions utilizing resources reserved by the aggressor or the victim. In the third aspect, either alone or in combination with one or more of the first and second aspects, the resource conflict indication is mapped to a resource associated with feedback regarding transmissions utilizing resources reserved by the aggressor or the victim.

[0142] In the fourth aspect, either alone or in combination with one or more of the first to third aspects, the resource conflict indication uses a sequence different from the sequence used to generate feedback for transmissions that exploit resources reserved by the aggressor or the victim. In the fifth aspect, either alone or in combination with one or more of the first to fourth aspects, the resource conflict indication uses an extended sequence, wherein the extended sequence is extended relative to the sequence used to generate feedback for transmissions that exploit resources reserved by the aggressor or the victim. In the sixth aspect, either alone or in combination with one or more of the first to fifth aspects, the sequence spans multiple resource blocks.

[0143] In the seventh aspect, either alone or in combination with one or more of the first to sixth aspects, process 1200 includes: identifying a conflict between the reception of a resource conflict indication and another communication of the first UE; and resolving the conflict at least in part based on one or more priority rules, wherein receiving the resource conflict indication is at least in part based on resolving the conflict. In the eighth aspect, either alone or in combination with one or more of the first to seventh aspects, one or more priority rules instruct the transmission of the resource conflict indication and another communication associated with the highest priority level.

[0144] In the ninth aspect, either alone or in combination with one or more aspects from the first to the eighth aspects, conflict resolution is based at least in part on the ability of the first UE to perform concurrent transmission or reception. In the tenth aspect, either alone or in combination with one or more aspects from the first to the ninth aspects, one or more priority rules are based at least in part on the priority level of another communication, wherein the priority level is at least in part based on the priority level of a sidelink control channel or a sidelink shared channel associated with the other communication. In the eleventh aspect, either alone or in combination with one or more aspects from the first to the tenth aspects, process 1200 includes: receiving configuration information indicating a priority level of a resource conflict indication, wherein one or more priority rules are at least in part based on the priority level of the resource conflict indication.

[0145] In the twelfth aspect, either alone or in combination with one or more of the first to eleventh aspects, one or more priority rules are based at least in part on the priority level of the resource conflict indication, wherein the priority level is at least in part based on the priority level of the sidelink control channel or sidelink shared channel associated with the resource conflict indication. In the thirteenth aspect, either alone or in combination with one or more of the first to twelfth aspects, conflict resolution is based at least in part on one or more priority level thresholds associated with the resource conflict indication or another communication. In the fourteenth aspect, either alone or in combination with one or more of the first to thirteenth aspects, the action includes dropping, delaying, or rescheduling communications on the victim resource.

[0146] Although Figure 12 An example box of process 1200 is shown, but in some aspects, process 1200 may include... Figure 12 The boxes depicted in the diagram are compared to additional boxes, fewer boxes, different boxes, or boxes arranged in a different manner. Alternatively, two or more boxes in process 1200 may be executed in parallel.

[0147] Figure 13 This is a block diagram of an example device 1300 for wireless communication. Device 1300 may be a first user equipment (UE), or a first user equipment (UE) may include device 1300. In some aspects, device 1300 includes a receiving component 1302 and a transmitting component 1304, which can communicate with each other (e.g., via one or more buses and / or one or more other components). As shown, device 1300 can use the receiving component 1302 and the transmitting component 1304 to communicate with another device 1306 (such as a UE, a base station, or another wireless communication device). As further shown, device 1300 may include one or more of an identification component 1308, a determination component 1310, or an action component 1312, and other examples.

[0148] In some respects, device 1300 can be configured to perform the functions described herein. Figure 5-9 One or more operations described herein. Alternatively or concurrently, the apparatus 1300 may be configured to perform one or more processes described herein, such as... Figure 10 Process 1000 Figure 11 Process 1100 Figure 12 The process 1200 or a combination thereof. In some respects, Figure 13 The device 1300 and / or one or more components shown may include the above-described components. Figure 2 One or more components of the first UE described. Alternatively or additionally, Figure 13 One or more components shown can be combined with the above. Figure 2 The description refers to implementation within one or more components. Alternatively, one or more components in the set of components may be implemented, at least partially, as software stored in memory. For example, a component (or a portion of a component) may be implemented as instructions or code stored in a non-transitory computer-readable medium and executable by a controller or processor to perform the function or operation of the component.

[0149] The receiving component 1302 can receive communications from the device 1306, such as reference signals, control information, data communications, or combinations thereof.

[0150] The receiving component 1302 may provide the received communication to one or more other components of the device 1300. In some aspects, the receiving component 1302 may perform signal processing on the received communication (e.g., filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, demapping, equalization, interference cancellation, or decoding, and other examples), and may provide the processed signal to one or more other components of the device 1306. In some aspects, the receiving component 1302 may include the elements described above. Figure 2 The first user equipment (UE) described includes one or more antennas, demodulators, MIMO detectors, receiver processors, controllers / processors, memory, or combinations thereof.

[0151] Transmitting component 1304 can transmit communications, such as reference signals, control information, data communications, or combinations thereof, to device 1306. In some aspects, one or more other components of device 1306 can generate communications and provide the generated communications to transmitting component 1304 for transmission to device 1306. In some aspects, transmitting component 1306 can perform signal processing (e.g., filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding, and other examples) on the generated communications and can transmit the processed signals to device 1306. In some aspects, transmitting component 1304 can include the above-described combinations. Figure 2 The first user equipment (UE) described includes one or more antennas, modulators, transmit MIMO processors, transmit processors, controllers / processors, memory, or combinations thereof. In some aspects, the transmit component 1304 may be co-located with the receive component 1302 in a transceiver.

[0152] The identification component 1308 can identify conflicts on victim resources based at least in part on aggressor reservations sent by the second UE. The transmission component 1304 can transmit a resource conflict indication to the second UE via a sidelink feedback channel, indicating at least one of victim resources or aggressor reservations, wherein the resource conflict indication is multiplexed on one or more resources available for sidelink feedback.

[0153] The determining component 1310 can determine that the transmission or reception of a resource conflict indication associated with the second UE conflicts with another communication of the first UE, wherein the resource conflict indication is transmitted or received via a sidelink feedback channel. The transmitting component 1304 can transmit or receive at least one of the resource conflict indication or another communication based at least in part on one or more priority rules.

[0154] The receiving component 1302 can receive, via a sidelink feedback channel, a resource conflict indication from the second UE, indicating at least one of victim resources or attacker reservations sent by the first UE, wherein the resource conflict indication is multiplexed on one or more resources available for sidelink feedback. The action component 1312 can perform an action at least in part based on the resource conflict indication.

[0155] Figure 13 The number and arrangement of components shown are provided as an example. In reality, they can exist in combination with... Figure 13 The components shown are compared to additional components, fewer components, different components, or components arranged in a different way. Furthermore, Figure 13 The two or more components shown can be implemented within a single component, or Figure 13 The single component shown can be implemented as multiple distributed components. Alternatively, Figure 13 The set (one or more) components shown can perform actions described by Figure 13 The other set of components shown performs one or more functions.

[0156] The following provides a summary of some aspects of this disclosure:

[0157] Aspect 1: A method of wireless communication performed by a first user equipment (UE), comprising: identifying a conflict on a victim resource based at least in part on an aggressor reservation transmitted by a second UE; and transmitting to the second UE via a sidelink feedback channel a resource conflict indication indicating at least one of the victim resource or the aggressor reservation, wherein the resource conflict indication is multiplexed on one or more resources available for sidelink feedback.

[0158] Aspect 2: According to the method of aspect 1, wherein the resource conflict indication is mapped to a resource that was not used for side link feedback when the mapping of the resource conflict indication is performed.

[0159] Aspect 3: The method according to any one of Aspects 1 to 2, wherein the resource conflict indication is mapped to a resource not associated with feedback on the transmission of resources reserved by the aggressor or the victim.

[0160] Aspect 4: The method according to any one of Aspects 1 to 3, wherein the resource conflict indication is mapped to a resource associated with feedback on the transmission of resources reserved by the aggressor or the victim.

[0161] Aspect 5: The method according to any one of Aspects 1 to 4 further includes: generating the resource conflict indication using a sequence different from the sequence used to generate feedback for the transmission of resources reserved by the aggressor or the victim.

[0162] Aspect 6: The method according to any one of Aspects 1 to 5 further includes: using an extended sequence to generate the resource conflict indication, wherein the extended sequence is extended relative to a sequence used to generate feedback for transmissions utilizing resources reserved by the aggressor or the victim.

[0163] Aspect 7: The method according to aspect 6, wherein the extended sequence spans multiple resource blocks.

[0164] Aspect 8: The method according to any one of Aspects 1 to 7 further includes: identifying a conflict between the transmission of the resource conflict indication and another communication of the first UE; and resolving the conflict at least in part based on one or more priority rules, wherein sending the resource conflict indication is at least in part based on resolving the conflict.

[0165] Aspect 9: According to the method of aspect 8, wherein the one or more priority rules instruct the transmission of the resource conflict indication and the other communication associated with the highest priority level.

[0166] Aspect 10: According to the method of aspect 8, the resolution of the conflict is based at least in part on the ability of the first UE to perform concurrent transmission or reception.

[0167] Aspect 11: The method according to aspect 8, wherein the one or more priority rules are at least partially based on the priority level of the other communication, wherein the priority level is at least partially based on the priority level of the sidelink control channel or sidelink shared channel associated with the other communication.

[0168] Aspect 12: The method according to aspect 8 further includes: receiving configuration information indicating a priority level of the resource conflict indication, wherein the one or more priority rules are at least partially based on the priority level of the resource conflict indication.

[0169] Aspect 13: The method according to aspect 8, wherein the one or more priority rules are at least partially based on the priority level of the resource conflict indication, wherein the priority level is at least partially based on the priority level of the sidelink control channel or sidelink shared channel associated with the resource conflict indication.

[0170] Aspect 14: The method according to aspect 8, wherein resolving the conflict is based at least in part on one or more priority level thresholds associated with the resource conflict indication or the other communication.

[0171] Aspect 15: A method of wireless communication performed by a first user equipment (UE), comprising: receiving from a second UE via a sidelink feedback channel a resource conflict indication indicating at least one of victim resources or attacker reservations sent by the first UE, wherein the resource conflict indication is multiplexed over one or more resources available for sidelink feedback; and performing an action at least in part based on the resource conflict indication.

[0172] Aspect 16: The method according to aspect 15, wherein: the resource conflict indication is mapped to a resource not used for sidelink feedback when the mapping of the resource conflict indication is performed; the resource conflict indication is mapped to a resource not associated with feedback on transmissions utilizing resources reserved by the aggressor or the victim; or the resource conflict indication is mapped to a resource associated with feedback on transmissions utilizing resources reserved by the aggressor or the victim.

[0173] Aspect 17: The method according to any one of Aspects 15 to 16, wherein: the resource conflict indication uses a sequence different from the sequence used to generate feedback for transmissions utilizing resources reserved by the aggressor or the victim; or the resource conflict indication uses an extended sequence, wherein the extended sequence is extended relative to the sequence used to generate feedback for transmissions utilizing resources reserved by the aggressor or the victim, and wherein the sequence spans multiple resource blocks.

[0174] Aspect 18: The method according to any one of Aspects 15 to 17 further includes: identifying a conflict between the reception of the resource conflict indication and another communication of the first UE; and resolving the conflict at least in part based on one or more priority rules, wherein receiving the resource conflict indication is at least in part based on resolving the conflict.

[0175] Aspect 19: The method according to aspect 18, wherein: the one or more priority rules instruct the transmission of the resource conflict indication and the other communication associated with the highest priority level; the one or more priority rules are at least partially based on the priority level of the other communication, wherein the priority level is at least partially based on the priority level of the sidelink control channel or sidelink shared channel associated with the other communication; or the one or more priority rules are at least partially based on the priority level of the resource conflict indication, wherein the priority level is at least partially based on the priority level of the sidelink control channel or sidelink shared channel associated with the resource conflict indication.

[0176] Aspect 20: The method according to any one of Aspects 15 to 19, wherein: resolving the conflict is based at least in part on the ability of the first UE to transmit or receive concurrently; or resolving the conflict is based at least in part on one or more priority level thresholds associated with the resource conflict indication or the other communication.

[0177] Aspect 21: The method according to any one of aspects 15 to 20 further includes: receiving configuration information indicating a priority level of the resource conflict indication, wherein one or more priority rules are at least partially based on the priority level of the resource conflict indication.

[0178] Aspect 22: The method according to any one of Aspects 15 to 21, wherein the action includes discarding, delaying or rescheduling communications on the victim resource.

[0179] Aspect 23: An apparatus for wireless communication at a device, comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform the method according to one or more of aspects 1-14.

[0180] Aspect 24: A device for wireless communication, comprising a memory and one or more processors coupled to the memory, the one or more processors being configured to perform the method according to one or more of aspects 1-14.

[0181] Aspect 25: An apparatus for wireless communication, comprising at least one unit for performing the method according to one or more of aspects 1-14.

[0182] Aspect 26: A non-transitory computer-readable medium storing code for wireless communication, said code including instructions executable by a processor to perform the methods described in accordance with one or more of aspects 1-14.

[0183] Aspect 27: A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions comprising one or more instructions which, when executed by one or more processors of a device, cause the device to perform the method according to one or more aspects of aspects 1-14.

[0184] Aspect 28: An apparatus for wireless communication at a device, comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform the method according to one or more of aspects 15-22.

[0185] Aspect 29: A device for wireless communication, comprising a memory and one or more processors coupled to the memory, the one or more processors being configured to perform the method according to one or more aspects of aspects 15-22.

[0186] Aspect 30: An apparatus for wireless communication, comprising at least one unit for performing the method according to one or more of aspects 15-22.

[0187] Aspect 31: A non-transitory computer-readable medium storing code for wireless communication, said code including instructions executable by a processor to perform the methods described in one or more of aspects 15-22.

[0188] Aspect 32: A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions comprising one or more instructions which, when executed by one or more processors of a device, cause the device to perform the method according to one or more aspects of aspects 15-22.

[0189] The foregoing disclosure provides explanations and descriptions, but is not intended to be exhaustive or to limit the aspects to the precise form disclosed. Modifications and variations may be made based on the foregoing disclosure, or modifications and variations may be derived from practice in the aspects.

[0190] 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 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, and other examples. As used herein, processors are implemented using hardware and / or a combination of hardware and software. It will be apparent that the systems and / or methods described herein can be implemented using various forms of hardware and / or combinations of hardware and software. The actual specialized control hardware or software code used to implement these systems and / or methods is not a limitation in any respect. Therefore, while the operation and behavior of systems and / or methods are described herein without reference to specific software code, it is to be understood that software and hardware can be designed to implement systems and / or methods, at least in part, based on the descriptions herein.

[0191] As used in this article, depending on the context, satisfying the threshold can refer to 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.

[0192] Even if a specific combination of features is recited in the claims and / or disclosed in the specification, such combinations are not intended to limit the disclosure of the aspects. In fact, many of these features can be combined in ways that are not specifically recited in the claims and / or specifically disclosed in the specification. While each dependent claim listed below may directly depend on only one claim, the disclosure of an aspect includes a combination of each dependent claim with every other claim in the claim set. As used herein, the phrase “at least one of” in the list of items refers to any combination of those items, including single members. For example, “at least one of a, b, or c” is intended to cover a, b, c, ab, ac, bc, and abc, as well as any combination of multiples of the same element (e.g., aa, aaa, aab, aac, abb, acc, bb, bbb, bbc, cc, and ccc, or any other ordering of a, b, and c).

[0193] None of the elements, actions, or instructions used herein should be construed as critical 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 “the” is intended to include one or more items referenced in combination with the article “the” and is interchangeable with “one or more.” Furthermore, as used herein, the terms “set” and “group” are intended to include one or more items (e.g., related items, unrelated items, or a combination of related and unrelated items) and are interchangeable with “one or more.” Where only one item is anticipated, the phrase “only one” or similar language is used. Furthermore, as used herein, the terms “has,” “have,” “having,” etc., are intended to be open-ended terms. Furthermore, unless explicitly stated otherwise, the phrase “based on” is intended to mean “at least partially based on.” Furthermore, as used herein, the term “or” is intended to be inclusive when used in a series and may be used interchangeably with “and / or” unless otherwise expressly stated (e.g., if used in conjunction with “any” or “only one of”).

Claims

1. A method for wireless communication performed by a first user equipment (UE), comprising: The identification of conflicts on victim resources is based at least in part on the aggressor reservation sent by the second UE; A resource conflict indication is generated using a sequence different from the sequence used to generate feedback for transmissions utilizing resources reserved by the aggressor or the victim, the resource conflict indication indicating at least one of the victim resources or the aggressor's reserved resources; as well as The resource conflict indication is sent to the second UE via the sidelink feedback channel, wherein the resource conflict indication is multiplexed on one or more resources that can be used for sidelink feedback; The resource conflict indication is used to indicate the sidelink resource that is the victim resource in the conflict between the first UE and the second UE.

2. The method according to claim 1, wherein, The resource conflict indication is mapped to a resource that was not used for sidelink feedback when the mapping of the resource conflict indication is executed.

3. The method according to claim 1, wherein, The resource conflict indication is mapped to a resource that is not associated with feedback on transmissions that utilize resources reserved by the aggressor or the victim.

4. The method according to claim 1, wherein, The resource conflict indication is mapped to a resource associated with feedback on transmissions that utilize resources reserved by the aggressor or the victim.

5. The method according to claim 1, further comprising: The resource conflict indication is generated using an extended sequence, wherein the extended sequence is extended relative to a sequence used to generate feedback on transmissions that utilize resources reserved by the aggressor or the victim.

6. The method according to claim 5, wherein, The extended sequence spans multiple resource blocks.

7. The method according to claim 1, further comprising: Identify a conflict between the transmission indicated by the resource conflict and another communication of the first UE; as well as The conflict is resolved at least in part based on one or more priority rules, wherein sending the resource conflict indication is at least in part based on resolving the conflict.

8. The method according to claim 7, wherein, The one or more priority rules indicate the transmission of the resource conflict indication and the other communication associated with the highest priority level.

9. The method according to claim 7, wherein, The resolution of the conflict is based at least in part on the ability of the first UE to transmit or receive concurrently.

10. The method according to claim 7, wherein, The one or more priority rules are based at least in part on the priority level of the other communication, wherein the priority level is based at least in part on the priority level of the sidelink control channel or sidelink shared channel associated with the other communication.

11. The method of claim 7, further comprising: Receive configuration information indicating the priority level of the resource conflict indication, wherein the one or more priority rules are at least partially based on the priority level of the resource conflict indication.

12. The method according to claim 7, wherein, The one or more priority rules are based at least in part on the priority level of the resource conflict indication, wherein the priority level is based at least in part on the priority level of the sidelink control channel or sidelink shared channel associated with the resource conflict indication.

13. The method according to claim 7, wherein, The resolution of the conflict is based, at least in part, on one or more priority level thresholds associated with the resource conflict indication or the other communication.

14. A method for wireless communication performed by a first user equipment (UE), comprising: Receives from a second UE via a sidelink feedback channel a resource conflict indication indicating at least one of victim resources or attacker reservations sent by the first UE, wherein the resource conflict indication is multiplexed on one or more resources available for sidelink feedback, and wherein the resource conflict indication uses a sequence different from the sequence used to generate feedback for transmissions utilizing the attacker reservations or the victim resources; and Actions are performed at least in part based on the resource conflict indication; The resource conflict indication is used to indicate the sidelink resource that is the victim resource in the conflict between the first UE and the second UE.

15. The method of claim 14, wherein: The resource conflict indication is mapped to a resource that was not used for side link feedback when the mapping of the resource conflict indication is executed; The resource conflict indication is mapped to a resource that is not associated with feedback on transmissions that utilize resources reserved by the aggressor or the victim; or The resource conflict indication is mapped to a resource associated with feedback on transmissions that utilize resources reserved by the aggressor or the victim.

16. The method of claim 14, wherein: The resource conflict indication uses an extended sequence, wherein the extended sequence is extended relative to a sequence used to generate feedback for transmissions that utilize resources reserved by the aggressor or the victim, and wherein the sequence spans multiple resource blocks.

17. The method of claim 14, further comprising: Identify a conflict between the receipt of the resource conflict indication and another communication of the first UE; as well as The conflict is resolved at least in part based on one or more priority rules, wherein receiving the resource conflict indication is at least in part based on resolving the conflict.

18. The method of claim 17, wherein: The one or more priority rules indicate the transmission of the resource conflict indication and the other communication associated with the highest priority level; The one or more priority rules are at least partially based on the priority level of the other communication, wherein the priority level is at least partially based on the priority level of the sidelink control channel or sidelink shared channel associated with the other communication; or The one or more priority rules are based at least in part on the priority level of the resource conflict indication, wherein the priority level is based at least in part on the priority level of the sidelink control channel or sidelink shared channel associated with the resource conflict indication.

19. The method of claim 14, wherein: Resolving the conflict is based at least in part on the ability of the first UE to perform concurrent transmission or reception; or The resolution of the conflict is based, at least in part, on one or more priority level thresholds associated with the resource conflict indication or another communication.

20. The method of claim 14, further comprising: Receive configuration information indicating the priority level of the resource conflict indication, wherein one or more priority rules are at least partially based on the priority level of the resource conflict indication.

21. The method according to claim 14, wherein, The actions include discarding, delaying, or rescheduling communications on the victim's resources.

22. A first user equipment (UE) for wireless communication, comprising: Memory; as well as One or more processors coupled to the memory, the one or more processors being configured to: The identification of conflicts on victim resources is based at least in part on the aggressor reservation sent by the second UE; A resource conflict indication is generated using a sequence different from the sequence used to generate feedback for transmissions utilizing resources reserved by the aggressor or the victim, the resource conflict indication indicating at least one of the victim resources or the aggressor's reserved resources; as well as The resource conflict indication is sent to the second UE via the sidelink feedback channel, wherein the resource conflict indication is multiplexed on one or more resources that can be used for sidelink feedback; The resource conflict indication is used to indicate the sidelink resource that is the victim resource in the conflict between the first UE and the second UE.

23. The first UE for wireless communication according to claim 22, wherein: The resource conflict indication is mapped to a resource that was not used for side link feedback when the mapping of the resource conflict indication is executed; The resource conflict indication is mapped to a resource that is not associated with feedback on transmissions that utilize resources reserved by the aggressor or the victim; or The resource conflict indication is mapped to a resource associated with feedback on transmissions that utilize resources reserved by the aggressor or the victim.

24. The first UE for wireless communication according to claim 22, wherein, The one or more processors are further configured to: The resource conflict indication is generated using an extended sequence, wherein the extended sequence is extended relative to a sequence used to generate feedback on transmissions utilizing resources reserved by the aggressor or the victim, and wherein the extended sequence spans multiple resource blocks.

25. The first UE for wireless communication according to claim 22, wherein, The one or more processors are further configured to: Identify a conflict between the transmission indicated by the resource conflict and another communication of the first UE; as well as The conflict is resolved at least in part based on one or more priority rules, wherein sending the resource conflict indication is at least in part based on resolving the conflict.

26. A first user equipment (UE) for wireless communication, comprising: Memory; as well as One or more processors coupled to the memory, the one or more processors being configured to: Receives from a second UE via a sidelink feedback channel a resource conflict indication indicating at least one of victim resources or attacker reservations sent by the first UE, wherein the resource conflict indication is multiplexed on one or more resources available for sidelink feedback, and wherein the resource conflict indication uses a sequence different from the sequence used to generate feedback for transmissions utilizing the attacker reservations or the victim resources; and Actions are performed at least in part based on the resource conflict indication; The resource conflict indication is used to indicate the sidelink resource that is the victim resource in the conflict between the first UE and the second UE.

27. The first UE for wireless communication according to claim 26, wherein, The one or more processors are further configured to: Identify a conflict between the receipt of the resource conflict indication and another communication of the first UE; as well as The conflict is resolved at least in part based on one or more priority rules, wherein receiving the resource conflict indication is at least in part based on resolving the conflict, wherein: The one or more priority rules indicate the transmission of the resource conflict indication and the other communication associated with the highest priority level; The one or more priority rules are at least partially based on the priority level of the other communication, wherein the priority level is at least partially based on the priority level of the sidelink control channel or sidelink shared channel associated with the other communication; or The one or more priority rules are based at least in part on the priority level of the resource conflict indication, wherein the priority level is based at least in part on the priority level of the sidelink control channel or sidelink shared channel associated with the resource conflict indication.

28. The first UE for wireless communication according to claim 26, wherein, The one or more processors are further configured to: Receive configuration information indicating the priority level of the resource conflict indication, wherein one or more priority rules are at least partially based on the priority level of the resource conflict indication.

29. The first UE for wireless communication according to claim 26, wherein, In order to perform the action, the one or more processors are configured to: discard, delay, or reschedule communication on the victim resource.

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