Restriction of sidelink transmission parameters for UEs

Abstract

Methods and apparatus for limiting sidelink transmission parameters of a UE. The apparatus receives a configuration of sidelink transmission parameters based on at least one of an area of the UE's height, UE's service range, or UE's location. The apparatus communicates based on the sidelink transmission parameter and at least one of the height of the UE, the UE service range, or the area of the UE location. The sidelink transmission parameter includes a height-based condition based on a height threshold. The sidelink transmission parameter indicates the UE: when the UE height is greater than or equal to the height threshold, using a first limit to transmit a sidelink transmission to transmit a transport block; and transmitting a sidelink transmission using a second message and a second restriction to transmit the transport block when the UE height is below the height threshold.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims the benefit of U.S. non-provisional patent application serial number 18 / 167,068, entitled “RESTRICTIONS ON SIDELINK TRANSMISSION PARAMETERS FORUES,” filed on February 9, 2023, which is expressly incorporated herein by reference in its entirety. Technical Field

[0003] The present disclosure relates generally to communication systems, and more particularly to configuration for restrictions on sidelink transmission parameters of a user equipment (UE). Background Art

[0004] Wireless communication systems are widely deployed to provide a variety of telecommunication services, such as telephony, video, data, messaging, and broadcasts. Typical wireless communication systems may employ multiple access technologies capable of supporting communication with multiple users by sharing available system resources. 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, and time division synchronous code division multiple access (TD-SCDMA) systems.

[0005] These multiple access technologies have been adopted in various telecommunication standards to provide a common protocol that enables different wireless devices to communicate at a city, country, region, and even global level. An example telecommunication standard is 5G New Radio (NR). 5G NR is part of the continued mobile broadband evolution promulgated by the 3rd Generation Partnership Project (3GPP) to meet new requirements associated with latency, reliability, security, scalability (e.g., with the Internet of Things (IoT)) and other requirements. 5G NR includes services associated with enhanced mobile broadband (eMBB), massive machine-type communications (mMTC), and ultra-reliable low-latency communications (URLLC). Some aspects of 5G NR may be based on the 4G Long Term Evolution (LTE) standard. Further improvements to 5G NR technology are needed. These improvements may also be applicable to other multiple access technologies and telecommunication standards that employ these technologies. Summary of the Invention

[0006] The following presents a simplified summary of one or more aspects in order to provide a basic understanding of such aspects. This summary is not an extensive overview of all contemplated aspects. This summary does not identify key or critical elements of all aspects, nor does it delineate the scope of any or all aspects. Its sole purpose is to present some concepts of one or more aspects in a simplified form as a prelude to the more detailed description that will be presented later.

[0007] In one aspect of the present disclosure, a method, computer-readable medium, and apparatus are provided. The apparatus may be a device at a UE. The apparatus may be a processor and / or modem at the UE, or the UE itself. The apparatus receives a configuration of sidelink transmission parameters based on at least one of the UE's altitude, the UE's service range, or the area where the UE is located. The apparatus communicates based on the sidelink transmission parameters and at least one of the UE's altitude, the UE's service range, or the area where the UE is located.

[0008] In one aspect of the present disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may be a device at a network node. The apparatus may be a processor and / or a modem at the network node or the network node itself. The apparatus configures sidelink transmission parameters based on at least one of the altitude of a user equipment (UE), a UE service range, or an area where the UE is located. The apparatus provides configuration of sidelink transmission parameters based on at least one of the altitude of the UE, the UE service range, or an area where the UE is located. The apparatus communicates based on the sidelink transmission parameters and at least one of the altitude of the UE, the UE service range, or an area where the UE is located.

[0009] To achieve the foregoing and related ends, one or more aspects include the features fully described below and particularly pointed out in the claims. The following description and the accompanying drawings set forth in detail some illustrative features of one or more aspects. However, these features are indicative of only some of the various ways in which the principles of the various aspects can be employed. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 is a diagram illustrating an example of a wireless communication system and an access network.

[0011] Figure 2A is a diagram illustrating an example of a first frame according to various aspects of the present disclosure.

[0012] Figure 2B is a diagram illustrating an example of downlink (DL) channels within a subframe according to various aspects of the present disclosure.

[0013] Figure 2C is a diagram illustrating an example of a second frame according to various aspects of the present disclosure.

[0014] Figure 2D is a diagram illustrating an example of uplink (UL) channels within a subframe according to various aspects of the present disclosure.

[0015] Figure 3 is a diagram illustrating an example of a base station and a user equipment (UE) in an access network.

[0016] Figure 4A is a diagram illustrating an example of side link transmission parameters.

[0017] Figure 4B is a diagram illustrating an example of side link transmission parameters.

[0018] Figure 5A is a diagram illustrating an example of side link transmission parameters.

[0019] Figure 5B is a diagram illustrating an example of side link transmission parameters.

[0020] Figure 6 is a diagram illustrating an example of side link transmission parameters.

[0021] Figure 7 is a diagram illustrating an example of side link transmission parameters.

[0022] Figure 8 is a diagram illustrating an example of a UAV in a wireless communication network.

[0023] Figure 9 is a diagram illustrating an example of sidelink transmission parameters based on altitude.

[0024] Figure 10 is a diagram illustrating an example of sidelink transmission parameters based on altitude.

[0025] Figure 11 is a diagram illustrating an example of range-based sidelink transmission parameters.

[0026] Figure 12 is a diagram illustrating an example of range-based sidelink transmission parameters.

[0027] Figure 13 is a diagram illustrating an example of side link transmission parameters based on areas or zones.

[0028] Figure 14 It is a call flow diagram of the signaling between the UE and the base station.

[0029] Figure 15 is a flow chart of a method of wireless communication.

[0030] Figure 16 are diagrams illustrating examples of hardware implementations of example apparatuses and / or network entities.

[0031] Figure 17 is a flow chart of a method of wireless communication.

[0032] Figure 18 is a diagram illustrating an example of a hardware implementation of an example network entity.

[0033] Figure 19 is a diagram illustrating an example of flight path parameters. DETAILED DESCRIPTION

[0034] In wireless communications, congestion control can be used to manage the traffic load on a system or resource pool and prevent overload. In some instances, sidelink transmit parameters and channel occupancy rate (CR) limits can be limited based on quality of service (QoS) priorities and / or channel busy rate (CBR) ranges. The CBR can indicate the overall congestion level of the physical sidelink shared channel (PSSCH) subchannels in sidelink communications within a resource pool over a period of time. In addition to congestion control, speed-based limits can also be used to configure sidelink transmit parameters based on different speeds.

[0035] An unmanned aerial vehicle (UAV), also known as a drone, is an aircraft that does not have a human pilot on board. The UAV may include sensors, cameras and other instruments, such as, but not limited to, a UE. The UAV may fly at different altitudes in the air, and the UAV including the UE may interfere with or be interfered with by other distant UEs due to the line of sight channel. The positioning or location of the UAV including the UE may be determined based on a navigation system, such as, but not limited to, a global navigation satellite system (GNSS), light detection and ranging (LIDAR), radio-aided detection and ranging (RADAR), sound navigation and ranging (SONAR), imaging capture, depth analysis, etc. The UAV including the UE may be connected to a base station or a wireless network via a Uu interface. For a UAV including a UE that is in a connected state with a base station or a wireless network, the base station may configure the UE of the UAV to report its altitude via radio resource control (RRC) signaling. In some instances, the reporting of the altitude of the UE of the UAV may be a periodic report or a triggered report. However, due to non-line-of-sight channels, a UAV including a UE and on the ground may cause interference to or be interfered with by other distant UEs to a lesser extent than a UAV flying in the air. A problem with a UAV including a UE is interference to other UEs based at least on the altitude of the UAV, the type of traffic transmitted by the UAV, or the location of the UAV.

[0036] Various aspects presented herein provide for configuring constraints on sidelink transmission parameters for a UAV, including a UE. The UAV may set conditions on its sidelink transmission capability to reduce interference to other UEs. At least one advantage of the present disclosure is that the configuration of sidelink transmission parameters may reduce interference to other UEs based on the UE's altitude, UE service range, or area of ​​UE location.

[0037] The detailed description set forth below in conjunction with the accompanying drawings is a description of various configurations and does not represent the only configurations in which the concepts described herein may be practiced. The detailed description includes specific details to provide a thorough understanding of the various concepts. However, these concepts may be practiced without these specific details. In some instances, well-known structures and components are shown in block diagram form to avoid obscuring such concepts.

[0038] Several aspects of telecommunication systems are presented with reference to various apparatuses and methods. These apparatuses and methods are described in the following detailed description and illustrated in the accompanying drawings by various blocks, components, circuits, processes, algorithms, etc. (collectively referred to as "elements"). These elements can be implemented using electronic hardware, computer software, or any combination thereof. Whether these elements are implemented as hardware or software depends on the specific application and the design constraints imposed on the overall system.

[0039] As an example, an element or any part of an element or any combination of elements can be implemented as a "processing system", which includes one or more processors. The example of a processor includes a microprocessor, a microcontroller, a graphics processing unit (GPU), a central processing unit (CPU), an application processor, a digital signal processor (DSP), a reduced instruction set computing (RISC) processor, a system on a chip (SoC), a baseband processor, a field programmable gate array (FPGA), a programmable logic device (PLD), a state machine, a gated logic component, a discrete hardware circuit and other suitable hardware configured to perform various functionalities described throughout this disclosure. One or more processors in a processing system can execute software. Whether referred to as software, firmware, middleware, microcode, hardware description language or other terms, software should be broadly interpreted as meaning an instruction, an instruction set, a code, a code segment, a program code, a program, a subroutine, a software component, an application, a software application, a software package, a routine, a subroutine, an object, an executable file, a thread of execution, a process, a function or any combination thereof.

[0040] Thus, in one or more example aspects, specific implementations and / or use cases, the functions described may be implemented in hardware, software, or any combination thereof. If implemented in software, the functions may be stored or encoded as one or more instructions or codes on a computer-readable medium. Computer-readable media include computer storage media. A storage medium may be any available medium that can be accessed by a computer. As an example, such computer-readable media may include random access memory (RAM), read-only memory (ROM), electrically erasable programmable ROM (EEPROM), optical disk storage, magnetic disk storage, other magnetic storage devices, combinations of these types of computer-readable media, or any other medium that can be used to store computer-executable code in the form of instructions or data structures that can be accessed by a computer.

[0041] Although various aspects, specific implementations and / or use cases are described in this application by way of illustration of some examples, additional or different aspects, specific implementations and / or use cases may be generated in many different arrangements and scenarios. The various aspects, specific implementations and / or use cases described herein may be implemented across many different platform types, devices, systems, shapes, sizes and packaging arrangements. For example, various aspects, specific implementations and / or use cases may be generated via integrated chip implementations and other devices based on non-module components (e.g., end-user devices, vehicles, communication equipment, computing equipment, industrial equipment, retail / purchase equipment, medical equipment, devices that enable artificial intelligence (AI), etc.). Although some examples may or may not be specifically for use cases or applications, the examples described may have a wide range of applicability. Various aspects, specific implementations and / or use cases may be within the scope of chip-level or modular components to non-modular, non-chip-level specific implementations, and further to the scope of aggregation, distribution or original equipment manufacturer (OEM) equipment or systems in conjunction with one or more technologies herein. In some actual settings, the equipment in conjunction with the various aspects and features described may also include additional components and features for implementing and practicing the claimed and described aspects. For example, the transmission and reception of wireless signals necessarily include multiple components for both analog and digital purposes (e.g., hardware components including antennas, RF chains, power amplifiers, modulators, buffers, processors, interleavers, adders / summers, etc.). The techniques described herein can be practiced in a wide variety of devices of various sizes, shapes, and configurations, including chip-level components, systems, distributed arrangements, aggregated or disaggregated components, end-user devices, and the like.

[0042] The deployment of a communication system (such as a 5G NR system) can be arranged in a variety of ways with various components or parts. In a 5G NR system or network, a network node, a network entity, a mobility element of a network, a radio access network (RAN) node, a core network node, a network element or network equipment (such as a base station (BS)) or one or more units (or one or more components) that perform base station functions can be implemented in a converged or decomposed architecture. For example, a BS (such as a Node B (NB), an evolved NB (eNB), an NR BS, a 5G NB, an access point (AP), a transmit receive point (TRP) or a cell, etc.) can be implemented as a converged base station (also known as a standalone BS or a monolithic BS) or a decomposed base station.

[0043] A converged base station may be configured to utilize a radio protocol stack that is physically or logically integrated within a single RAN node. A decomposed base station may be configured to utilize a protocol stack that is physically or logically distributed across two or more units, such as one or more central or centralized units (CUs), one or more distributed units (DUs), or one or more radio units (RUs). In some aspects, a CU may be implemented within a RAN node, and one or more DUs may be co-located with the CU, or alternatively, may be geographically or virtually distributed across one or more other RAN nodes. A DU may be implemented to communicate with one or more RUs. Each of the CU, DU, and RU may be implemented as a virtual unit, namely a virtual central unit (VCU), a virtual distributed unit (VDU), or a virtual radio unit (VRU).

[0044] Base station operation or network design may take into account the aggregated nature of base station functionality. For example, a disaggregated base station may be utilized in an integrated access backhaul (IAB) network, an open radio access network (O-RAN (a network configuration such as that initiated by the O-RAN Alliance)), or a virtualized radio access network (vRAN, also known as a cloud radio access network (C-RAN)). Disaggregation may include distributing functionality across two or more units at various physical locations, as well as virtually distributing functionality of at least one unit, which may enable flexibility in network design. Various units of a disaggregated base station or disaggregated RAN architecture may be configured for wired or wireless communication with at least one other unit.

[0045] Figure 1FIG1 is a diagram 100 illustrating an example of a wireless communication system and access network. The illustrated wireless communication system includes a disaggregated base station architecture. The disaggregated base station architecture may include one or more CUs 110 that may communicate directly with a core network 120 via a backhaul link, or indirectly with the core network 120 through one or more disaggregated base station units, such as a near real-time (near-RT) RAN intelligent controller (RIC) 125 via an E2 link, or a non-real-time (non-RT) RIC 115 associated with a service management and orchestration (SMO) framework 105, or both. The CU 110 may communicate with one or more DUs 130 via corresponding midhaul links, such as an F1 interface. The DU 130 may communicate with one or more RUs 140 via corresponding fronthaul links. The RU 140 may communicate with corresponding UEs 104 via one or more radio frequency (RF) access links. In some implementations, a UE 104 may be served simultaneously by multiple RUs 140.

[0046] Each of the units (i.e., CU 110, DU 130, RU 140, and near-RT RIC 125, non-RT RIC 115, and SMO framework 105) may include or be coupled to one or more interfaces configured to receive or transmit signals, data, or information (collectively, signals) via a wired or wireless transmission medium. Each of these units, or an associated processor or controller that provides instructions to the communication interfaces of these units, may be configured to communicate with one or more of the other units via a transmission medium. For example, these units may include a wired interface configured to receive signals or transmit signals to one or more of the other units via a wired transmission medium. Additionally, these units may include a wireless interface that may include a receiver, transmitter, or transceiver (such as an RF transceiver) configured to receive and / or transmit signals to one or more of the other units via a wireless transmission medium.

[0047] In some aspects, the CU 110 may host one or more higher layer control functions. Such control functions may include radio resource control (RRC), packet data convergence protocol (PDCP), service data adaptation protocol (SDAP), etc. Each control function may be implemented using an interface that is configured to communicate signals with other control functions hosted by the CU 110. The CU 110 may be configured to handle user plane functionality (i.e., central unit-user plane (CU-UP)), control plane functionality (i.e., central unit-control plane (CU-CP)), or a combination thereof. In some specific implementations, the CU 110 may be logically split into one or more CU-UP units and one or more CU-CP units. When implemented in an O-RAN configuration, the CU-UP unit may communicate bidirectionally with the CU-CP unit via an interface such as an E1 interface. As needed, the CU 110 may be implemented to communicate with the DU 130 for network control and signaling.

[0048] The DU 130 may correspond to a logical unit that includes one or more base station functions for controlling the operation of one or more RUs 140. In some aspects, the DU 130 may host one or more of a radio link control (RLC) layer, a medium access control (MAC) layer, and one or more higher physical (PHY) layers (such as modules for forward error correction (FEC) encoding and decoding, scrambling, modulation and demodulation, etc.) based at least in part on a functional split, such as those defined by 3GPP. In some aspects, the DU 130 may also host one or more lower PHY layers. Each layer (or module) may be implemented using an interface configured to communicate signals with other layers (and modules) hosted by the DU 130 or with control functions hosted by the CU 110.

[0049] Lower layer functionality may be implemented by one or more RUs 140. In some deployments, a RU 140 controlled by a DU 130 may correspond to a logical node that hosts RF processing functionality or low PHY layer functionality (such as performing Fast Fourier Transform (FFT), Inverse FFT (iFFT), digital beamforming, Physical Random Access Channel (PRACH) extraction and filtering, etc.), or both, based at least in part on a functional split (such as a lower layer functional split). In such an architecture, the RU 140 may be implemented to handle over-the-air (OTA) communications with one or more UEs 104. In some implementations, both real-time and non-real-time aspects of control and user plane communications with the RU 140 may be controlled by the corresponding DU 130. In some scenarios, this configuration may enable the DU 130 and CU 110 to be implemented in a cloud-based RAN architecture (such as a vRAN architecture).

[0050] The SMO framework 105 can be configured to support RAN deployment and provisioning of both non-virtualized and virtualized network elements. For non-virtualized network elements, the SMO framework 105 can be configured to support the deployment of dedicated physical resources for RAN coverage requirements, which can be managed via an operations and maintenance interface (such as the O1 interface). For virtualized network elements, the SMO framework 105 can be configured to interact with a cloud computing platform (such as Open Cloud (O-Cloud) 190) to perform network element lifecycle management (such as instantiating virtualized network elements) via a cloud computing platform interface (such as the O2 interface). Such virtualized network elements may include, but are not limited to, CU 110, DU 130, RU 140, and near-RT RIC 125. In some implementations, the SMO framework 105 can communicate with hardware aspects of the 4G RAN (such as Open eNB (O-eNB) 111) via the O1 interface. Additionally, in some implementations, the SMO framework 105 can communicate directly with one or more RUs 140 via the O1 interface. The SMO framework 105 may also include a non-RT RIC 115 configured to support the functionality of the SMO framework 105 .

[0051] The non-RT RIC 115 can be configured to include logic functions that enable non-real-time control and optimization of RAN elements and resources, artificial intelligence (AI) / machine learning (ML) (AI / ML) workflows including model training and updating, or policy-based guidance of applications / features in the near-RT RIC 125. The non-RT RIC 115 can be coupled to or in communication with the near-RT RIC 125 (e.g., via an A1 interface). The near-RT RIC 125 can be configured to include logic functions that enable near-real-time control and optimization of RAN elements and resources through data collection and actions over an interface (e.g., via an E2 interface) that connects one or more CUs 110, one or more DUs 130, or both, and the O-eNB with the near-RT RIC 125.

[0052] In some implementations, to generate AI / ML models to be deployed in the near-RT RIC 125, the non-RT RIC 115 may receive parameters or external enrichment information from an external server. Such information may be utilized by the near-RT RIC 125 and may be received from non-network data sources or from network functions at the SMO framework 105 or the non-RT RIC 115. In some examples, the non-RT RIC 115 or the near-RT RIC 125 may be configured to regulate RAN behavior or performance. For example, the non-RT RIC 115 may monitor long-term trends and patterns in performance and employ AI / ML models to perform corrective actions through the SMO framework 105 (such as via reconfiguration of O1) or via the creation of RAN management policies (such as A1 policies).

[0053] At least one of the CU 110, DU 130, and RU 140 may be referred to as a base station 102. Thus, the base station 102 may include one or more of the CU 110, DU 130, and RU 140 (each component is indicated by a dotted line to indicate that each component may or may not be included in the base station 102). The base station 102 provides an access point to the core network 120 for the UE 104. The base station 102 may include a macro cell (a high-power cellular base station) and / or a small cell (a low-power cellular base station). Small cells include femto cells, pico cells, and micro cells. A network that includes both small cells and macro cells may be referred to as a heterogeneous network. A heterogeneous network may also include a home evolved Node B (eNB) (HeNB), which may provide services to a restricted group called a closed subscriber group (CSG). The communication link between the RU 140 and the UE 104 may include uplink (UL) (also known as reverse link) transmissions from the UE 104 to the RU 140 and / or downlink (DL) (also known as forward link) transmissions from the RU 140 to the UE 104. The communication link may utilize multiple-input multiple-output (MIMO) antenna technology, including spatial multiplexing, beamforming, and / or transmit diversity. The communication link may be over one or more carriers. The base station 102 / UE 104 may utilize spectrum of up to Y MHz (e.g., 5 MHz, 10 MHz, 15 MHz, 20 MHz, 100 MHz, 400 MHz, etc.) bandwidth for each carrier allocated in a carrier aggregation for a total of up to Yx MHz (x component carriers) for transmission in each direction. These carriers may or may not be adjacent to each other. The allocation of carriers may be asymmetric with respect to DL and UL (e.g., more or fewer carriers may be allocated for DL ​​compared to UL). The component carriers may include a primary component carrier and one or more secondary component carriers. The primary component carrier may be referred to as a primary cell (PCell) and the secondary component carrier may be referred to as a secondary cell (SCell).

[0054] Some UEs 104 may communicate with each other using device-to-device (D2D) communication links 158. The D2D communication links 158 may use DL / UL wireless wide area network (WWAN) spectrum. The D2D communication links 158 may use one or more sidelink channels, such as a physical sidelink broadcast channel (PSBCH), a physical sidelink discovery channel (PSDCH), a physical sidelink shared channel (PSSCH), and a physical sidelink control channel (PSCCH). D2D communication may be accomplished through various wireless D2D communication systems, such as, for example, Bluetooth, Wi-Fi based on the Institute of Electrical and Electronics Engineers (IEEE) 802.11 standard, LTE, or NR.

[0055] The wireless communication system may also include a Wi-Fi AP 150 that communicates with a UE 104 (also referred to as a Wi-Fi station (STA)) via a communication link 154, for example, in the 5 GHz unlicensed spectrum. When communicating in the unlicensed spectrum, the UE 104 / AP 150 may perform a clear channel assessment (CCA) to determine whether the channel is available before communicating.

[0056] The electromagnetic spectrum is typically subdivided into various categories, bands, channels, etc. based on frequency / wavelength. In 5G NR, two initial operating bands have been identified as frequency range designations FR1 (410 MHz - 7.125 GHz) and FR2 (24.25 GHz - 52.6 GHz). Although a portion of FR1 is greater than 6 GHz, FR1 is often referred to (interchangeably) as the "sub-6 GHz" band in various documents and articles. A similar naming issue sometimes occurs with respect to FR2, which is often (interchangeably) referred to as the "millimeter wave" band in documents and articles, although it is different from the extremely high frequency (EHF) band (30 GHz - 300 GHz) identified as the "millimeter wave" band by the International Telecommunication Union (ITU).

[0057] Frequencies between FR1 and FR2 are generally referred to as mid-band frequencies. Recent 5G NR research has identified the operating band for these mid-band frequencies as frequency range designation FR3 (7.125 GHz–24.25 GHz). Frequency bands falling within FR3 can inherit FR1 characteristics and / or FR2 characteristics, thus effectively extending the features of FR1 and / or FR2 to mid-band frequencies. In addition, higher frequency bands are currently being explored to extend 5G NR operation to more than 52.6 GHz. For example, three higher operating bands have been identified as frequency range designations FR2-2 (52.6 GHz–71 GHz), FR4 (71 GHz–114.25 GHz), and FR5 (114.25 GHz–300 GHz). Each of these higher frequency bands falls within the EHF band.

[0058] With the above in mind, unless otherwise specified, if the term "sub-6 GHz" or the like is used herein, it may broadly refer to frequencies that may be less than 6 GHz, may be within FR1, or may include mid-band frequencies. Furthermore, unless otherwise specified, if the term "millimeter wave" or the like is used herein, it may broadly refer to frequencies that may include mid-band frequencies, may be within FR2, FR4, FR2-2, and / or FR5, or may be within the EHF band.

[0059] Base station 102 and UE 104 may each include multiple antennas (such as antenna elements, antenna panels, and / or antenna arrays) to facilitate beamforming. Base station 102 may transmit beamformed signals 182 to UE 104 in one or more transmit directions. UE 104 may receive beamformed signals from base station 102 in one or more receive directions. UE 104 may also transmit beamformed signals 184 to base station 102 in one or more transmit directions. Base station 102 may receive beamformed signals from UE 104 in one or more receive directions. Base station 102 / UE 104 may perform beam training to determine the optimal receive and transmit directions for each of base station 102 / UE 104. The transmit and receive directions of base station 102 may or may not be the same. The transmit and receive directions of UE 104 may or may not be the same.

[0060] The base station 102 may include and / or be referred to as a gNB, a Node B, an eNB, an access point, a base transceiver station, a radio base station, a radio transceiver, a transceiver function, a basic service set (BSS), an extended service set (ESS), a transmit / receive point (TRP), a network node, a network entity, a network equipment, or some other suitable terminology. The base station 102 may be implemented as an integrated access and backhaul (IAB) node, a relay node, a sidelink node, a converged (monolithic) base station having a baseband unit (BBU) (including a CU and a DU) and a RU, or as a disaggregated base station including one or more of a CU, a DU, and / or a RU. A collection of base stations that may include disaggregated base stations and / or converged base stations may be referred to as a next generation (NG) RAN (NG-RAN).

[0061] The core network 120 may include an access and mobility management function (AMF) 161, a session management function (SMF) 162, a user plane function (UPF) 163, a unified data management (UDM) 164, one or more location servers 168, and other functional entities. The AMF 161 is a control node that handles signaling between the UE 104 and the core network 120. The AMF 161 supports registration management, connection management, mobility management, and other functions. The SMF 162 supports session management and other functions. The UPF 163 supports packet routing, packet forwarding, and other functions. The UDM 164 supports the generation of authentication and key agreement (AKA) credentials, user identity handling, access authorization, and subscription management. The one or more location servers 168 are exemplified as including a gateway mobile location center (GMLC) 165 and a location management function (LMF) 166. However, in general, the one or more location servers 168 may include one or more location / positioning servers, which may include one or more of the GMLC 165, LMF 166, Position Determination Entity (PDE), Serving Mobile Location Center (SMLC), Mobile Positioning Center (MPC), etc. The GMLC 165 and LMF 166 support UE location services. The GMLC 165 provides an interface for clients / applications (e.g., emergency services) to access UE positioning information. The LMF 166 receives measurements and assistance information from the NG-RAN and UE 104 via the AMF 161 to calculate the location of the UE 104. The NG-RAN may utilize one or more positioning methods to determine the location of the UE 104. Locating the UE 104 may involve signal measurements, position estimates, and optionally velocity calculations based on these measurements. Signal measurements may be performed by the UE 104 and / or the serving base station 102. The measured signals may be based on one or more of a satellite positioning system (SPS) 170 (e.g., one or more of a global navigation satellite system (GNSS), a global positioning system (GPS), a non-terrestrial network (NTN), or other satellite positioning / location systems), LTE signals, wireless local area network (WLAN) signals, Bluetooth signals, a terrestrial beacon system (TBS), sensor-based information (e.g., an atmospheric pressure sensor, a motion sensor), an NR enhanced cell ID (NR E-CID) method, NR signals (e.g., multi-round trip time (multi-RTT), DL angle of departure (DL-AoD), DL time difference of arrival (DL-TDOA), UL time difference of arrival (UL-TDOA), and UL angle of arrival (UL-AoA) positioning), and / or other systems / signals / sensors.

[0062] Examples of UE 104 include cellular phones, smartphones, Session Initiation Protocol (SIP) phones, laptops, personal digital assistants (PDAs), satellite radios, global positioning systems, multimedia devices, video devices, digital audio players (e.g., MP3 players), cameras, game consoles, tablet computers, smart devices, wearable devices, vehicles, electric meters, gas pumps, large or small kitchen appliances, healthcare devices, implants, sensors / actuators, displays, or any other similarly functional device. Some of UE 104 may be referred to as IoT devices (e.g., parking meters, gas pumps, toasters, vehicles, heart rate monitors, etc.). UE 104 may also be referred to as a station, mobile station, subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client, or some other suitable terminology. In some scenarios, the term UE may also apply to one or more companion devices, such as in a device constellation arrangement. One or more of these devices may access the network collectively and / or individually.

[0063] Reference again Figure 1 In certain aspects, the UE 104 may include a parameter component 198 configured to receive a configuration of a sidelink transmit parameter based on at least one of the UE's altitude, the UE's service range, or the area of ​​the UE's location; and to communicate based on the sidelink transmit parameter and at least one of the UE's altitude, the UE's service range, or the area of ​​the UE's location.

[0064] Reference again Figure 1 In certain aspects, the base station 102 may include a parameter component 199 configured to configure a sidelink transmission parameter based on at least one of the altitude of the UE, the service range of the UE, or the area where the UE is located; provide configuration of the sidelink transmission parameter based on at least one of the altitude of the UE, the service range of the UE, or the area where the UE is located; and communicate based on the sidelink transmission parameter and at least one of the altitude of the UE, the service range of the UE, or the area where the UE is located.

[0065] Although the following description may focus on 5G NR, the concepts described herein may be applicable to other similar areas such as LTE, LTE-A, CDMA, GSM, and other wireless technologies.

[0066] Figure 2A FIG200 is a diagram illustrating an example of a first subframe within a 5G NR frame structure. Figure 2B FIG230 is a diagram illustrating an example of DL channels within a 5G NR subframe. Figure 2CFIG250 is a diagram illustrating an example of a second subframe within a 5G NR frame structure. Figure 2D FIG280 is a diagram illustrating an example of UL channels within a 5G NR subframe. The 5G NR frame structure may be frequency division duplex (FDD), where for a particular set of subcarriers (carrier system bandwidth), subframes within that subcarrier set are dedicated to either DL or UL, or may be time division duplex (TDD), where for a particular set of subcarriers (carrier system bandwidth), subframes within that subcarrier set are dedicated to both DL and UL. Figure 2A 、 Figure 2C In the example provided, the 5G NR frame structure is assumed to be TDD, where subframe 4 is configured with slot format 28 (most of which are DL), where D is DL, U is UL, and F is flexible between DL / UL, and subframe 3 is configured with slot format 1 (all of which are UL). Although subframes 3 and 4 are shown as having slot formats 1 and 28, respectively, any particular subframe can be configured with any of the various available slot formats 0-61. Slot formats 0 and 1 are all DL and all UL, respectively. The other slot formats 2-61 include a mix of DL, UL, and flexible symbols. The UE is configured with the slot format via the received slot format indicator (SFI) (dynamically configured via DL control information (DCI) or semi-statically / statically configured via radio resource control (RRC) signaling). Note that the following description also applies to the 5G NR frame structure as TDD.

[0067] Figures 2A to 2D The frame structure is illustrated, and various aspects of the present disclosure are applicable to other wireless communication technologies that may have different frame structures and / or different channels. A frame (10ms) can be divided into 10 equally sized subframes (1ms). Each subframe may include one or more time slots. A subframe may also include a mini-time slot, which may include 7, 4, or 2 symbols. Each time slot may include 14 or 12 symbols, depending on whether the cyclic prefix (CP) is normal or extended. For a normal CP, each time slot may include 14 symbols, and for an extended CP, each time slot may include 12 symbols. The symbols on the DL may be CP orthogonal frequency division multiplexing (OFDM) (CP-OFDM) symbols. The symbols on the UL may be CP-OFDM symbols (for high throughput scenarios) or discrete Fourier transform (DFT) spread OFDM (DFT-s-OFDM) symbols (for power-limited scenarios; limited to single-stream transmission). The number of time slots within a subframe is based on the CP and the parameter set. The parameter set defines the subcarrier spacing (SCS) (see Table 1). Symbol length / duration can be scaled with 1 / SCS.

[0068]

[0069] Table 1: Parameter set, SCS and CP

[0070] For normal CP (14 symbols / slot), different parameter sets μ0 to 4 allow 1, 2, 4, 8, and 16 slots per subframe, respectively. For extended CP, parameter set 2 allows 4 slots per subframe. Thus, for normal CP and parameter set μ, there are 14 symbols / slot and 2 μ time slots / subframe. The subcarrier spacing can be equal to 2 μ *15kHz, where μ is parameter set 0 to 4. Therefore, the subcarrier spacing for parameter set μ=0 is 15kHz, and the subcarrier spacing for parameter set μ=4 is 240kHz. Symbol length / duration is inversely related to subcarrier spacing. Figures 2A to 2D An example is provided for a normal CP with 14 symbols per slot and a parameter set μ=2 with 4 slots per subframe. The slot duration is 0.25 ms, the subcarrier spacing is 60 kHz, and the symbol duration is approximately 16.67 μs. Within a frame set, there may be one or more different bandwidth parts (BWPs) that are frequency-division multiplexed (see Figure 2B ). Each BWP may have a specific parameter set and CP (normal or extended).

[0071] A resource grid can be used to represent the frame structure. Each slot includes a resource block (RB) (also called a physical RB (PRB)) that extends over 12 consecutive subcarriers. The resource grid is divided into multiple resource elements (REs). The number of bits carried by each RE depends on the modulation scheme.

[0072] like Figure 2A As illustrated, some of the REs carry reference (pilot) signals (RS) for the UE. The RSs may include a demodulation RS (DM-RS) (indicated as R for a particular configuration, but other DM-RS configurations are possible) and a channel state information reference signal (CSI-RS) for channel estimation at the UE. The RSs may also include a beam measurement RS (BRS), a beam refinement RS (BRRS), and a phase tracking RS (PT-RS).

[0073] Figure 2BExamples of various DL channels within a subframe of a frame are illustrated. The physical downlink control channel (PDCCH) carries DCI within one or more control channel elements (CCEs) (e.g., 1, 2, 4, 8, or 16 CCEs), each CCE comprising six RE groups (REGs), each REG comprising 12 consecutive REs within an OFDM symbol of a RB. The PDCCH within a BWP may be referred to as a control resource set (CORESET). During a PDCCH monitoring opportunity on the CORESET, the UE is configured to monitor PDCCH candidates in a PDCCH search space (e.g., a common search space, a UE-specific search space), where the PDCCH candidates have different DCI formats and different aggregation levels. Additional BWPs may be located at higher and / or lower frequencies across the channel bandwidth. The primary synchronization signal (PSS) may be within symbol 2 of a specific subframe of the frame. The PSS is used by the UE 104 to determine subframe / symbol timing and physical layer identity. The secondary synchronization signal (SSS) may be within symbol 4 of a specific subframe of the frame. The SSS is used by the UE to determine the physical layer cell identity group number and radio frame timing. Based on the physical layer identity and the physical layer cell identity group number, the UE can determine the physical cell identifier (PCI). Based on the PCI, the UE can determine the location of the DM-RS. The physical broadcast channel (PBCH) carrying the master information block (MIB) can be logically grouped with the PSS and SSS to form a synchronization signal (SS) / PBCH block (also known as an SS block (SSB)). The MIB provides the number of RBs in the system bandwidth and the system frame number (SFN). The physical downlink shared channel (PDSCH) carries user data, broadcast system information not sent over the PBCH (such as the system information block (SIB)), and paging messages.

[0074] like Figure 2C As illustrated, some of the REs carry DM-RS (indicated as R for a specific configuration, but other DM-RS configurations are possible) for channel estimation at the base station. The UE may transmit the DM-RS of the physical uplink control channel (PUCCH) and the DM-RS of the physical uplink shared channel (PUSCH). The PUSCH DM-RS may be transmitted in the first or first two symbols of the PUSCH. Depending on whether a short PUCCH or a long PUCCH is transmitted and depending on the specific PUCCH format used, the PUCCH DM-RS may be transmitted in different configurations. The UE may transmit a sounding reference signal (SRS). The SRS may be transmitted in the last symbol of the subframe. The SRS may have a comb structure, and the UE may transmit the SRS on one of the teeth of the comb. The SRS may be used by the base station for channel quality estimation to achieve frequency-dependent scheduling of the UL.

[0075] Figure 2DExamples of various UL channels within a subframe of a frame are illustrated. The PUCCH may be located at a position as indicated in one configuration. The PUCCH carries uplink control information (UCI), such as a scheduling request, a channel quality indicator (CQI), a precoding matrix indicator (PMI), a rank indicator (RI), and hybrid automatic repeat request (HARQ) acknowledgement (ACK) (HARQ-ACK) feedback (i.e., one or more HARQ ACK bits indicating one or more ACKs and / or negative ACKs (NACKs)). The PUSCH carries data and may additionally be used to carry a buffer status report (BSR), a power headroom report (PHR), and / or UCI.

[0076] Figure 3 3 is a block diagram of a base station 310 in an access network communicating with a UE 350. In the DL, Internet Protocol (IP) packets may be provided to a controller / processor 375. The controller / processor 375 implements layer 3 and layer 2 functionality. Layer 3 includes a radio resource control (RRC) layer, and layer 2 includes a service data adaptation protocol (SDAP) layer, a packet data convergence protocol (PDCP) layer, a radio link control (RLC) layer, and a medium access control (MAC) layer. The controller / processor 375 provides RRC layer functionality associated with broadcasting of system information (e.g., MIB, SIB), RRC connection control (e.g., RRC connection paging, RRC connection establishment, RRC connection modification, and RRC connection release), inter-radio access technology (RAT) mobility, and measurement configuration for UE measurement reporting; PDCP layer functionality associated with header compression / decompression, security (ciphering, deciphering, integrity protection, integrity verification), and handover support functions; RLC layer functionality associated with delivery of upper layer packet data units (PDUs), error correction through ARQ, concatenation, segmentation and reassembly of RLC service data units (SDUs), resegmentation of RLC data PDUs, and reordering of RLC data PDUs; and MAC layer functionality associated with mapping between logical channels and transport channels, multiplexing of MAC SDUs onto transport blocks (TBs), demultiplexing of MAC SDUs from TBs, scheduling information reporting, error correction through HARQ, priority handling, and logical channel prioritization.

[0077] The transmit (TX) processor 316 and receive (RX) processor 370 implement Layer 1 functionality associated with various signal processing functions. Layer 1, which includes the physical (PHY) layer, may include error detection on the transport channel, forward error correction (FEC) coding / decoding of the transport channel, interleaving, rate matching, mapping onto the physical channel, modulation / demodulation of the physical channel, and MIMO antenna processing. The TX processor 316 handles the mapping to the signal constellation based on various modulation schemes (e.g., binary phase-shift keying (BPSK), quadrature phase-shift keying (QPSK), M-order phase-shift keying (M-PSK), and M-order quadrature amplitude modulation (M-QAM)). The coded and modulated symbols are then separated into parallel streams. Each stream is then mapped to an OFDM subcarrier, multiplexed with a reference signal (e.g., a pilot) in the time and / or frequency domain, and then combined using an inverse fast Fourier transform (IFFT) to produce a physical channel carrying a time-domain OFDM symbol stream. The OFDM stream is spatially precoded to generate multiple spatial streams. Channel estimates from a channel estimator 374 may be used to determine the coding and modulation schemes, as well as for spatial processing. The channel estimates may be derived from a reference signal and / or channel condition feedback transmitted by the UE 350. Each spatial stream may then be provided to a different antenna 320 via a separate transmitter 318Tx. Each transmitter 318Tx may modulate a radio frequency (RF) carrier using a corresponding spatial stream for transmission.

[0078] At the UE 350, each receiver 354Rx receives a signal via its corresponding antenna 352. Each receiver 354Rx recovers the information modulated onto the RF carrier and provides the information to a receive (RX) processor 356. The TX processor 368 and the RX processor 356 implement Layer 1 functionality associated with various signal processing functions. The RX processor 356 can perform spatial processing on the information to recover any spatial streams destined for the UE 350. If multiple spatial streams are destined for the UE 350, they can be combined into a single OFDM symbol stream by the RX processor 356. The RX processor 356 then converts the OFDM symbol stream from the time domain to the frequency domain using a fast Fourier transform (FFT). The frequency domain signal includes a separate OFDM symbol stream for each subcarrier of the OFDM signal. The symbols on each subcarrier, as well as the reference signal, are recovered and demodulated by determining the most likely signal constellation point transmitted by the base station 310. These soft decisions can be based on channel estimates calculated by the channel estimator 358. The soft decisions are then decoded and deinterleaved to recover the data and control signals originally sent on the physical channel by base station 310. The data and control signals are then provided to a controller / processor 359, which implements layer 3 and layer 2 functionality.

[0079] The controller / processor 359 may be associated with a memory 360 that stores program codes and data. The memory 360 may be referred to as a computer-readable medium. In the UL, the controller / processor 359 provides demultiplexing between transport and logical channels, packet reassembly, decryption, header decompression, and control signal processing to recover IP packets. The controller / processor 359 is also responsible for error detection using an ACK and / or NACK protocol to support HARQ operations.

[0080] Similar to the functionality described in conjunction with DL transmissions performed by the base station 310, the controller / processor 359 provides RRC layer functionality associated with system information (e.g., MIB, SIB) acquisition, RRC connection, and measurement reporting; PDCP layer functionality associated with header compression / decompression and security (encryption, decryption, integrity protection, integrity verification); RLC layer functionality associated with delivery of upper layer PDUs, error correction through ARQ, concatenation, segmentation, and reassembly of RLC SDUs, resegmentation of RLC data PDUs, and reordering of RLC data PDUs; and MAC layer functionality associated with mapping between logical channels and transport channels, multiplexing of MAC SDUs onto TBs, demultiplexing of MAC SDUs from TBs, scheduling information reporting, error correction through HARQ, priority handling, and logical channel prioritization.

[0081] Channel estimates derived by the channel estimator 358 based on a reference signal or feedback transmitted by the base station 310 may be used by the TX processor 368 to select the appropriate coding and modulation schemes and to facilitate spatial processing. The spatial streams generated by the TX processor 368 may be provided to different antennas 352 via separate transmitters 354Tx. Each transmitter 354Tx may modulate an RF carrier with a corresponding spatial stream for transmission.

[0082] UL transmissions are processed at the base station 310 in a manner similar to that described in conjunction with the receiver functionality at the UE 350. Each receiver 318Rx receives a signal through its corresponding antenna 320. Each receiver 318Rx recovers information modulated onto an RF carrier and provides the information to the RX processor 370.

[0083] The controller / processor 375 may be associated with a memory 376 that stores program codes and data. The memory 376 may be referred to as a computer-readable medium. In the UL, the controller / processor 375 provides demultiplexing between transport and logical channels, packet reassembly, decryption, header decompression, and control signal processing to recover IP packets. The controller / processor 375 is also responsible for error detection using an ACK and / or NACK protocol to support HARQ operations.

[0084] At least one of the TX processor 368, the RX processor 356, and the controller / processor 359 may be configured to combine Figure 1 The parameter component 198 performs various aspects.

[0085] At least one of the TX processor 316, the RX processor 370, and the controller / processor 375 may be configured to combine Figure 1 The parameter component 199 performs various aspects.

[0086] In wireless communications, congestion control may be used to control the traffic load on a system or resource pool and prevent overload. In some instances, sidelink transmission parameters and channel occupancy rate (CR) limits may be limited based on quality of service (QoS) priorities and / or channel busy rate (CBR) ranges. The CR may indicate how much resources the UE has used per priority level in the resource pool over a period of time. The CBR may indicate the overall congestion level of the physical sidelink shared channel (PSSCH) subchannels in the sidelink communications in the resource pool over a period of time. In some wireless communication systems, such as in LTE Mode 4, the sidelink parameters (e.g., SL-CBR-PPP-TxConfigList) may be configured via a SIB (e.g., SIB26) or dedicated radio resource control (RRC) signaling, or may be preconfigured (e.g., SL-V2X-Preconfiguration), such as, for example Figure 4A In some wireless communication systems (such as NR Mode 2), the sidelink parameters (e.g., SL-CBR-PriorityTxConfigList) may be configured via SIB (e.g., SIB12) or dedicated RRC signaling, or may be pre-configured (e.g., SL-PreconfigurationNR), such as Figure 4B As shown in Figure 410.

[0087] In addition to congestion control, speed-based limits can also be used to configure sidelink transmission parameters based on different speeds. For example, in LTE Mode 4, sidelink parameters (e.g., SL-PSSCH-TxConfigList) can be configured or pre-configured (e.g., SL-V2X-Preconfiguration) via SIBs (e.g., SIB21) or dedicated RRC, as shown in the following example: Figure 5A In another example, such as in NR mode 2, the parameter (e.g., SL-PSSCH-TxConfigList) may be configured via a SIB (e.g., SIB12) or dedicated RRC signaling, or may be pre-configured (e.g., SL-PreconfigurationNR), such as Figure 5B As shown in Figure 510.

[0088] In some examples, sidelink transmission parameters for different speeds and / or CBR levels may be predefined. For example, PSSCH transmission parameters may include MCS, number of subchannels, number of retransmissions, and / or maximum transmit power, as in e.g. Figure 6 As shown in Figure 600. Figure 7 Diagram 700 provides an example of different priority levels configured with different limits (e.g., CR_limit) so that higher priority messages can have more opportunities and resources to be sent. In some instances, if the CR is above a threshold (e.g., CR_limit), the UE may discard some transmissions. The UE may determine how to meet the threshold or limit and discard the transmission.

[0089] A UAV (also known as a drone) is an aircraft that does not have a human pilot on board. A UAV can operate remotely or autonomously based on a set of instructions and can include sensors, cameras and other instruments, such as, but not limited to, a UE. UAVs are used in various applications, such as military surveillance, wildlife conservation, disaster relief, delivery services and aerial photography. They provide a number of advantages, such as the ability to reach difficult-to-access locations. UAVs can reach different altitudes that are inaccessible to ground UEs. UAVs can fly at different altitudes in the air, and a UAV including a UE may interfere with or be interfered with by other distant UEs due to line-of-sight channels. However, due to non-line-of-sight channels, a UAV including a UE and on the ground may interfere with or be interfered with by other distant UEs to a lesser extent than a UAV flying in the air.

[0090] UAVs including UEs may also include new types of services. For example, a UAV may transmit a broadcast remote identifier (BRID) to law enforcement or other agencies on the ground, which is broadcast for safety and security purposes. For example, the BRID may include a small packet size (e.g., approximately 0.25 kilobytes). The BRID may not have a requirement for low latency (e.g., 1 second) with large periodicity, or may include a maximum broadcast range (e.g., 1 km to 2 km). In another example, the UAV may also transmit a detect and avoid (DAA) signal that broadcasts mobility information, location, heading, etc. The DAA may include a small to medium packet size (e.g., approximately 0.25 kilobytes to 1 kilobyte), may include low latency with small periodicity (e.g., approximately 20 ms to 100 ms), or may be used for proximity communications (e.g., approximately 0.5 km to 1 km). However, for UAVs including UEs, there may be issues with minimizing or controlling interference based on at least the altitude of the UAV, the type of service transmitted by the UAV, or the location of the UAV.

[0091] Various aspects presented herein provide for configuring restrictions on sidelink transmit parameters of a UE. For example, a UE (e.g., a UAV) may set conditions on its sidelink transmit capability to reduce interference to other UEs. The UE may receive a configuration of sidelink transmit parameters that may modify or change the UE's sidelink transmit capability based on at least one of the UE's altitude, the UE's service range, or the area where the UE is located. At least one advantage of the present disclosure is that the configuration of the sidelink transmit parameters may reduce interference to other UEs based on the UE's altitude, the UE's service range, or the area where the UE is located.

[0092] Figure 8 An example of a UAV in a wireless communication network is illustrated. Diagram 800 includes a first UAV 806 including a UE. UAV 806 can communicate with a base station 802 located above ground level 804. UAV 806 can be airborne such that the UAV is at a certain height, elevation, or altitude 808 above ground level 804. UAV 806 can be flying at an altitude 808 greater than an altitude threshold 810, where altitude threshold 810 can be based on a distance from ground level 804. Transmissions 814 from UAV 806 can cause interference to distant UEs (e.g., UE 816) due to its altitude 808. UAV 806 can also be within area 812. In some examples, UAV 818 can be flying at an altitude 820 less than altitude threshold 810. In such an example, because UAV 818 is at an altitude 820 that is less than altitude threshold 810, transmissions 824 from UAV 818 may cause less interference to distant UEs (e.g., UE 816) than UAV 806. UAV 818 may also be within area 822.

[0093] In view of the potential different altitudes that the UAV may travel, the sidelink transmission parameters may be configured to include altitude-based restrictions or conditions. For example, altitude-based restrictions / conditions may be configured or preconfigured for the sidelink transmission parameters. In instances where the UAV is flying in the air, the PSSCH may be restricted or conditioned to use a small number of subchannels and limited HARQ retransmissions to send packets with short messages and small transport blocks (e.g., BRID, DAA). Altitude-based restrictions may allow for reduced interference in line-of-sight channels. In instances where the UAV is on the ground or flying in the air at a lower altitude from the ground, the PSSCH may be configured to use a large number of subchannels and HARQ retransmissions to send long messages and large transport blocks. A UAV on the ground or flying in the air at a lower altitude from the ground may act like a ground UE and may not cause high interference compared to a UAV in the air. Figure 9Diagram 900 provides example sidelink transmission parameters based on altitude for a UAV, where the altitude threshold is 25 m. The altitude threshold of 25 m is a non-limiting example, and thus, in some aspects, the altitude threshold may be greater or less than 25 m.

[0094] In some aspects, the altitude threshold can be an altitude relative to sea level, or an altitude relative to a reference point (e.g., ground level, a network entity, or a target UE). The altitude threshold can be used to limit or control at least one of the following: a range of MCSs for a given MCS table for PSSCH supported within a resource pool, a range of the number of subchannels for PSSCH, an upper limit on the number of transmissions or retransmissions for PSSCH, or an upper limit on the TX power for PSSCH and PSCCH, such as, for example Figure 10 1000. In some examples, the altitude-based restriction or condition may indicate an absolute altitude threshold. In some examples, the altitude-based restriction or condition may indicate a transmission parameter for a UE speed above or below the altitude threshold.

[0095] In some aspects, the sidelink transmission parameters may be configured to include range-based restrictions or conditions. For example, range-based restrictions / conditions may be configured or preconfigured for the sidelink transmission parameters. The range parameter may be associated with a service or QoS flow, such as a sidelink range configuration (e.g., SL-QoS-profile), which may be the communication range or distance (if necessary) required for a broadcast or multicast service. In some aspects, such as for UAV BRID transmission, the broadcast range requirement may be greater than 1 km, which may utilize a higher transmit power and / or a larger number of blind retransmissions. However, data packets for BRID include small transport blocks with a low MCS. In some aspects, such as for UAV DAA transmission, the broadcast range requirement may be less than 1 km, which may allow for reduced transmit power and / or a smaller number of blind retransmissions compared to BRID transmission. Data packets for DAA may include variable transport blocks with low to medium MCS. Figure 11 Diagram 1100 provides an example of range-based sidelink transmission parameters for a UAV, where the range threshold is 1 km. The range threshold of 1 km is a non-limiting example, and thus in some aspects, the range threshold may be greater or less than 1 km.

[0096] In some aspects, the range threshold may include a three-dimensional range of different services associated with the QoS flow. The range threshold may be used to limit or control at least one of the following: a range of MCSs for a given MCS table for PSSCH supported within a resource pool, a range of the number of subchannels for PSSCH, an upper limit on the number of transmissions or retransmissions for PSSCH, or an upper limit on the transmit power for PSSCH and / or PSCCH, such as, for example Figure 121200. In some examples, the range-based restriction or condition may indicate a range threshold for the QoS flow. In some examples, the range-based restriction or condition may indicate a transmission parameter for a UAV speed above or below the range threshold.

[0097] In some aspects, the sidelink transmit parameters may be configured to include region- or zone-based restrictions or conditions. For example, region- or zone-based restrictions or conditions may be configured or pre-configured for the sidelink transmit parameters. Some examples of region- or zone-based restrictions may include airports and / or other flight-restricted airspaces, which may be indicated by the network or unmanned aircraft system to the UE of the UAV. In some aspects, the region or zone parameters may include geographic regions or two- or three-dimensional zones. In instances where the UAV is flying within a particular region or zone, the UAV may use a reduced or limited transmit power or a reduced or limited number of subchannels. The region or zone threshold may be used to limit or control at least one of: a range of MCSs for a given MCS table for PSSCH supported within a resource pool, a range of the number of subchannels for PSSCH, an upper limit on the number of transmissions or retransmissions for PSSCH, or an upper limit on the transmit power for PSSCH or PSCCH, such as, for example Figure 13 1300 . In some instances, the region or zone based restriction or condition may indicate a geographic region threshold, which may include a list of zone IDs or cell IDs within the geographic region or area. In some instances, the region or zone based restriction or condition may indicate a transmission parameter for the UAV speed within or outside the region or zone threshold. In some aspects, the UAV may include a flight plan with an expected positioning of the UAV that may be pre-provided to the network. The flight plan may be a known or existing flight path that restricts or defines the positioning that the UAV (e.g., with or without a UE) is expected to adhere to for the duration of the flight path. The expected position at the timestamp may be based on the flight path reported by the UE of the UAV. In some aspects, the UE of the UAV may report the flight path via RRC signaling. The UE of the UAV may report a flight path that includes waypoints at different times (e.g., at each timestamp), such as, for example Figure 19 1900 . If information related to the flight path is provided, the UE of the UAV can be configured to transmit data at a different rate in instances where the UAV deviates from the flight path. In such instances, the UE of the UAV can be configured to transmit DAA at an increased rate. For example, a UAV with a UE that deviates from the flight path can transmit more traffic for DAA using corresponding related transmission parameters compared to a UAV that remains on the predetermined flight path.

[0098] Side link transmission parameters for different altitudes, ranges, or areas may be configured via SIB or dedicated RRC (if within coverage), or may be configured or pre-configured per UE per carrier. The carrier may include a carrier frequency for existing side link communications. In some aspects, the carrier may include a carrier frequency that may be dedicated to UAV side link communications. In some aspects, one or more restrictions or conditions may be configured or pre-configured, such as a combination of CBR, speed, altitude, range, and / or area. In an example of multiple restrictions or conditions, the multiple restrictions or conditions may be configured to satisfy all restrictions on the side link transmission parameters, or may be configured to select some of the restrictions based on a priority between the multiple restrictions or conditions. The selection of priorities between the multiple restrictions or conditions may be configured or pre-configured at the UAV, including the UE.

[0099] In some aspects, such as for unicast, group, and broadcast, sidelink transmission parameters may be configured in different ways. For example, DAA may include unicast DAA and broadcast DAA. In some aspects, the maximum MCS, number of subchannels, or retransmissions for HARQ-ACK feedback for unicast DAA may be greater than the maximum MCS, number of subchannels, or retransmissions for broadcast DAA. In some aspects, one or more thresholds based on altitude, range, or area may be supported by configuring or preconfiguring a list of sidelink transmission configurations. The list of sidelink transmission configurations may be configured separately for UAVs and non-UAVs. In some aspects, UAVs and non-UAVs may share a list of sidelink transmission configurations, where some threshold parameters are only used for UAVs.

[0100] Figure 14 1400 is a call flow diagram of signaling between a UE 1402 and a base station 1404. The base station 1404 may be configured to provide at least one cell. The UE 1402 may be configured to communicate with the base station 1404. For example, Figure 1 In the context of , base station 1404 may correspond to base station 102, and UE 1402 may correspond to at least UE 104. In another example, Figure 3 In the context of , base station 1404 may correspond to base station 310, and UE 1402 may correspond to UE 350.

[0101] At 1406, base station 1404 may configure sidelink transmission parameters based on at least one of the UE's altitude, the UE's service range, or the area of ​​the UE's location. In some aspects, the sidelink transmission parameters may include an altitude-based condition based on an altitude threshold. The sidelink transmission parameters may instruct the UE to transmit a sidelink transmission using a first restriction in the sidelink transmission parameters to transmit a transport block when the UE's altitude is greater than or equal to the altitude threshold. The sidelink transmission parameters may instruct the UE to transmit a sidelink transmission using a second message and a second restriction in the sidelink transmission parameters to transmit the transport block when the UE's altitude is less than the altitude threshold. In some aspects, the sidelink transmission includes at least a broadcast remote identifier (BRID) or a detect and avoid (DAA) signal. In some aspects, the altitude threshold may be based on at least one of: sea level, ground level, the altitude of a serving cell, or a reference point. For example, in an example where at least the UE is located in an area near the sea, an altitude threshold based on sea level may be utilized such that sea level may be used for the altitude threshold. In some examples, when at least the UE is located in an area outside the sea, sea level may be used for the altitude threshold. In some aspects, the height of the serving cell may be based on the height of one or more antenna panels above the ground or ground plane. In some other instances, the height threshold may be based on a predefined or configurable reference point. In some aspects, the height-based condition may be associated with at least one of the following: a range of modulation and coding schemes (MCS) for sidelink transmission, a range of the number of subchannels for sidelink transmission, an upper limit for sidelink retransmissions, or an upper limit for sidelink transmit power for sidelink transmission. In some aspects, the sidelink transmission parameters may include range-based conditions based on a range threshold. The sidelink transmission parameters may instruct the UE: when the UE service range requirement is greater than or equal to the range threshold, use the first restriction in the sidelink transmission parameters to send the sidelink transmission to send the transport block for the UE service. The sidelink transmission parameters may instruct the UE: when the UE service range requirement is less than the range threshold, use the second message and the second restriction in the sidelink transmission parameters to send the sidelink transmission to send the transport block. In some aspects, the range-based condition may include a limit on at least one of: a range of MCSs for sidelink transmissions, a range of the number of subchannels for sidelink transmissions, an upper limit on the number of sidelink retransmissions, or an upper limit on the sidelink transmit power for sidelink transmissions. In some aspects, the sidelink transmission parameters may include a condition based on a geographic region. The sidelink transmission parameters may instruct the UE to transmit a sidelink transmission using a first limit in the sidelink transmission parameters to transmit a transport block for the UE service when the UE is located within the geographic region. The sidelink transmission parameters may instruct the UE to transmit a sidelink transmission using a second message and a second limit in the sidelink transmission parameters to transmit a transport block when the UE is located outside the geographic region.In some aspects, the geographic region-based conditions include limitations on at least one of: a range of MCSs for sidelink transmissions, a range of the number of subchannels for sidelink transmissions, an upper limit on the number of sidelink retransmissions, or an upper limit on the sidelink transmission power.

[0102] At 1408, the first UE 1402 may receive a configuration of sidelink transmission parameters. The sidelink transmission parameters may be based on at least one of the UE's altitude, the UE's service range, or the area of ​​the UE's location. The UE 1402 may receive the configuration of the sidelink transmission parameters from the base station 1404.

[0103] At 1410, UE 1402 may communicate based on the sidelink transmission parameters. The UE may communicate based on the sidelink transmission parameters and at least one of the UE's altitude, the UE's service range, or the area where the UE is located. The UE may communicate with at least base station 1404 or another UE (e.g., not shown) based on the sidelink transmission parameters and at least one of the UE's altitude, the UE's service range, or the area where the UE is located.

[0104] Figure 15 1500 is a flow chart of a method for wireless communication. The method may be performed by a UE (e.g., UE 104; apparatus 1604). One or more of the illustrated operations may be omitted, swapped, or performed simultaneously. The method may configure a UE (e.g., a UAV) with restrictions on sidelink transmission parameters to minimize interference with other UEs.

[0105] At 1502, a first UE may receive a configuration of sidelink transmission parameters. For example, 1502 may be performed by parameter component 198 of apparatus 1604. The sidelink transmission parameters may be based on at least one of the UE's altitude, the UE's service range, or the region of the UE's location. In some aspects, the sidelink transmission parameters may include an altitude-based condition based on an altitude threshold. The sidelink transmission parameters may instruct the UE to transmit a sidelink transmission using a first restriction in the sidelink transmission parameters to transmit a transport block when the UE's altitude is greater than or equal to the altitude threshold. The sidelink transmission parameters may instruct the UE to transmit a sidelink transmission using a second message and a second restriction in the sidelink transmission parameters to transmit the transport block when the UE's altitude is less than the altitude threshold. In some aspects, the sidelink transmission includes at least a broadcast remote identifier (BRID) or a detect and avoid (DAA) signal. In some aspects, the altitude threshold may be based on at least one of: sea level, ground level, the altitude of a serving cell, or a reference point. For example, in an example where at least the UE is located in an area near the sea, an altitude threshold based on sea level may be utilized such that sea level may be used for the altitude threshold. In some instances, when at least the UE is located in an area outside the sea, sea level can be used for the altitude threshold. In some aspects, the altitude of the serving cell can be based on the altitude of one or more antenna panels above the ground or ground level. In yet other instances, the altitude threshold can be based on a predefined or configurable reference point. In some aspects, the altitude-based condition can be associated with at least one of the following: a range of modulation and coding schemes (MCS) for sidelink transmissions, a range of the number of subchannels for sidelink transmissions, an upper limit on sidelink retransmissions, or an upper limit on sidelink transmit power for sidelink transmissions. In some aspects, the sidelink transmission parameters can include range-based conditions based on a range threshold. The sidelink transmission parameters can instruct the UE: when the UE service range requirement is greater than or equal to the range threshold, use a first restriction in the sidelink transmission parameters to send a sidelink transmission to send a transport block for the UE service. The sidelink transmission parameters can instruct the UE: when the UE service range requirement is less than the range threshold, use a second message and a second restriction in the sidelink transmission parameters to send a sidelink transmission to send a transport block. In some aspects, the range-based condition may include a limit on at least one of: a range of MCSs for sidelink transmissions, a range of the number of subchannels for sidelink transmissions, an upper limit on the number of sidelink retransmissions, or an upper limit on the sidelink transmit power for sidelink transmissions. In some aspects, the sidelink transmission parameters may include a condition based on a geographic region. The sidelink transmission parameters may instruct the UE to transmit a sidelink transmission using a first limit in the sidelink transmission parameters to transmit a transport block for the UE service when the UE is located within the geographic region. The sidelink transmission parameters may instruct the UE to transmit a sidelink transmission using a second message and a second limit in the sidelink transmission parameters to transmit a transport block when the UE is located outside the geographic region.In some aspects, the geographic region-based conditions include limitations on at least one of: a range of MCSs for sidelink transmissions, a range of the number of subchannels for sidelink transmissions, an upper limit on the number of sidelink retransmissions, or an upper limit on the sidelink transmission power.

[0106] At 1504, the UE may communicate based on the sidelink transmission parameters. For example, 1504 may be performed by parameter component 198 of device 1604. The UE may communicate based on the sidelink transmission parameters and at least one of the UE's altitude, the UE's service range, or the area where the UE is located. The UE may communicate with at least one of the network entity based on the sidelink transmission parameters and at least one of the UE's altitude, the UE's service range, or the area where the UE is located.

[0107] Figure 1616 is a diagram illustrating an example of a hardware implementation of an apparatus 1604. The apparatus 1604 may be a UE, a component of a UE, or may implement UE functionality. In some aspects, the apparatus 1604 may include a cellular baseband processor 1624 (also referred to as a modem) coupled to one or more transceivers 1622 (e.g., a cellular RF transceiver). The cellular baseband processor 1624 may include on-chip memory 1624′. In some aspects, the apparatus 1604 may also include one or more subscriber identity module (SIM) cards 1620 and an application processor 1606 coupled to a secure digital (SD) card 1608 and a screen 1610. The application processor 1606 may include on-chip memory 1606′. In some aspects, the device 1604 may also include a Bluetooth module 1612, a WLAN module 1614, an SPS module 1616 (e.g., a GNSS module), one or more sensor modules 1618 (e.g., an atmospheric pressure sensor / altimeter; a motion sensor such as an inertial measurement unit (IMU), a gyroscope, and / or an accelerometer; light detection and ranging (LIDAR), radio-aided detection and ranging (RADAR), sound navigation and ranging (SONAR), a magnetometer, audio, and / or other technologies for positioning), an additional memory module 1626, a power supply 1630, and / or a camera 1632. The Bluetooth module 1612, the WLAN module 1614, and the SPS module 1616 may include an on-chip transceiver (TRX) (or, in some cases, only a receiver (RX)). The Bluetooth module 1612, the WLAN module 1614, and the SPS module 1616 may include their own dedicated antennas and / or utilize an antenna 1680 for communication. The cellular baseband processor 1624 communicates with the UE 104 and / or RUs associated with the network entity 1602 via one or more antennas 1680 through the transceiver 1622. The cellular baseband processor 1624 and the application processor 1606 may each include computer-readable media / memory 1624', 1606', respectively. The additional memory module 1626 may also be considered a computer-readable medium / memory. Each computer-readable medium / memory 1624', 1606', 1626 may be non-transitory. The cellular baseband processor 1624 and the application processor 1606 are each responsible for general processing, including executing software stored on the computer-readable medium / memory. When executed by the cellular baseband processor 1624 / application processor 1606, this software enables the cellular baseband processor 1624 / application processor 1606 to perform the various functions described above. The computer-readable medium / memory may also be used to store data manipulated by the cellular baseband processor 1624 / application processor 1606 when executing the software.The cellular baseband processor 1624 / application processor 1606 may be a component of the UE 350 and may include the memory 360 and / or at least one of the TX processor 368, the RX processor 356, and the controller / processor 359. In one configuration, the device 1604 may be a processor chip (modem and / or applications) and include only the cellular baseband processor 1624 and / or the application processor 1606, and in another configuration, the device 1604 may be the entire UE (e.g., see ). Figure 3 350) and includes additional modules of device 1604.

[0108] As discussed above, component 198 is configured to receive a configuration of sidelink transmit parameters based on at least one of the UE's altitude, the UE's service area, or the area of ​​the UE's location; and to communicate based on the sidelink transmit parameters and at least one of the UE's altitude, the UE's service area, or the area of ​​the UE's location. Component 198 may be within cellular baseband processor 1624, application processor 1606, or both. Component 198 may be one or more hardware components specifically configured to perform the recited processes / algorithms, implemented by one or more processors configured to perform the recited processes / algorithms, stored on a computer-readable medium for implementation by one or more processors, or some combination thereof. As shown, device 1604 may include various components configured for various functions. In one configuration, device 1604, and in particular cellular baseband processor 1624 and / or application processor 1606, includes means for receiving a configuration of sidelink transmit parameters based on at least one of the UE's altitude, the UE's service area, or the area of ​​the UE's location. The apparatus includes means for communicating based on sidelink transmission parameters and at least one of the UE's altitude, the UE's service range, or the area of ​​the UE's location. The means may be a component 198 of the apparatus 1604 configured to perform the functions recited by the means. As described above, the apparatus 1604 may include a TX processor 368, an RX processor 356, and a controller / processor 359. Thus, in one configuration, the means may be the TX processor 368, the RX processor 356, and / or the controller / processor 359 configured to perform the functions recited by the means.

[0109] Figure 17 1700 is a flow chart of a method for wireless communication. The method may be performed by a base station (e.g., base station 102; network entity 1802). One or more of the illustrated operations may be omitted, swapped, or performed simultaneously. The method may configure a UE (e.g., a UAV) with restrictions on sidelink transmission parameters to minimize interference to other UEs.

[0110] At 1702, the base station may configure sidelink transmission parameters. For example, 1702 may be performed by parameter component 199 of network entity 1802. The sidelink transmission parameters may be based on at least one of the UE's altitude, the UE's service range, or the area of ​​the UE's location. In some aspects, the sidelink transmission parameters may include an altitude-based condition based on an altitude threshold. The sidelink transmission parameters may instruct the UE to transmit a sidelink transmission using a first restriction in the sidelink transmission parameters to transmit a transport block when the UE's altitude is greater than or equal to the altitude threshold. The sidelink transmission parameters may instruct the UE to transmit a sidelink transmission using a second message and a second restriction in the sidelink transmission parameters to transmit the transport block when the UE's altitude is less than the altitude threshold. In some aspects, the sidelink transmission includes at least a broadcast remote identifier (BRID) or a detect and avoid (DAA) signal. In some aspects, the altitude threshold may be based on at least one of sea level, the altitude of a serving cell, or a reference point. For example, in an example where at least the UE is located in an area near the sea, an altitude threshold based on sea level may be utilized so that sea level can be used for the altitude threshold. In some instances, when at least the UE is located in an area outside the sea, sea level can be used for the altitude threshold. In some aspects, the altitude of the serving cell can be based on the altitude of one or more antenna panels above the ground or ground level. In yet other instances, the altitude threshold can be based on a predefined or configurable reference point. In some aspects, the altitude-based condition can be associated with at least one of the following: a range of modulation and coding schemes (MCS) for sidelink transmissions, a range of the number of subchannels for sidelink transmissions, an upper limit on sidelink retransmissions, or an upper limit on sidelink transmit power for sidelink transmissions. In some aspects, the sidelink transmission parameters can include range-based conditions based on a range threshold. The sidelink transmission parameters can instruct the UE: when the UE service range requirement is greater than or equal to the range threshold, use a first restriction in the sidelink transmission parameters to send a sidelink transmission to send a transport block for the UE service. The sidelink transmission parameters can instruct the UE: when the UE service range requirement is less than the range threshold, use a second message and a second restriction in the sidelink transmission parameters to send a sidelink transmission to send a transport block. In some aspects, the range-based condition may include a limit on at least one of: a range of MCSs for sidelink transmissions, a range of the number of subchannels for sidelink transmissions, an upper limit on the number of sidelink retransmissions, or an upper limit on the sidelink transmit power for sidelink transmissions. In some aspects, the sidelink transmission parameters may include a condition based on a geographic region. The sidelink transmission parameters may instruct the UE to transmit a sidelink transmission using a first limit in the sidelink transmission parameters to transmit a transport block for the UE service when the UE is located within the geographic region. The sidelink transmission parameters may instruct the UE to transmit a sidelink transmission using a second message and a second limit in the sidelink transmission parameters to transmit a transport block when the UE is located outside the geographic region.In some aspects, the geographic region-based conditions include limitations on at least one of: a range of MCSs for sidelink transmissions, a range of the number of subchannels for sidelink transmissions, an upper limit on the number of sidelink retransmissions, or an upper limit on the sidelink transmission power.

[0111] At 1704, the base station may provide configuration of sidelink transmission parameters based on at least one of the altitude of the UE, the service range of the UE, or the area where the UE is located. For example, 1704 may be performed by parameter component 199 of network entity 1802. The base station may provide the UE with configuration of sidelink transmission parameters based on at least one of the altitude of the UE, the service range of the UE, or the area where the UE is located.

[0112] At 1706, the base station may communicate based on the sidelink transmission parameters. For example, 1706 may be performed by parameter component 199 of network entity 1802. The base station may communicate based on the sidelink transmission parameters and at least one of the UE's altitude, the UE's service range, or the area where the UE is located. The base station may communicate with the UE based on the sidelink transmission parameters and at least one of the UE's altitude, the UE's service range, or the area where the UE is located.

[0113] Figure 18Diagram 1800 illustrates an example hardware implementation for a network entity 1802. Network entity 1802 may be a base station (BS), a component of a BS, or may implement BS functionality. Network entity 1802 may include at least one of a CU 1810, a DU 1830, or a RU 1840. For example, depending on the layer functionality handled by component 199, network entity 1802 may include a CU 1810; both the CU 1810 and the DU 1830; each of the CU 1810, the DU 1830, and the RU 1840; the DU 1830; both the DU 1830 and the RU 1840; or the RU 1840. CU 1810 may include a CU processor 1812. CU processor 1812 may include on-chip memory 1812′. In some aspects, CU 1810 may also include an additional memory module 1814 and a communication interface 1818. The CU 1810 communicates with the DU 1830 via a midhaul link, such as an F1 interface. The DU 1830 may include a DU processor 1832. The DU processor 1832 may include on-chip memory 1832′. In some aspects, the DU 1830 may also include an additional memory module 1834 and a communication interface 1838. The DU 1830 communicates with the RU 1840 via a fronthaul link. The RU 1840 may include a RU processor 1842. The RU processor 1842 may include on-chip memory 1842′. In some aspects, the RU 1840 may also include an additional memory module 1844, one or more transceivers 1846, an antenna 1880, and a communication interface 1848. The RU 1840 communicates with the UE 104. The on-chip memories 1812′, 1832′, 1842′ and the additional memory modules 1814, 1834, 1844 may each be considered a computer-readable medium / memory. Each computer-readable medium / memory may be non-transitory. Each of processors 1812, 1832, and 1842 is responsible for general processing, including executing software stored on the computer-readable medium / memory. This software, when executed by the corresponding processor, causes the processor to perform the various functions described above. The computer-readable medium / memory may also be used to store data manipulated by the processor when executing the software.

[0114] As discussed above, component 199 is configured to configure sidelink transmission parameters based on at least one of the UE's altitude, the UE's service area, or the area of ​​the UE's location; provide configuration of sidelink transmission parameters based on at least one of the UE's altitude, the UE's service area, or the area of ​​the UE's location; and communicate based on the sidelink transmission parameters and at least one of the UE's altitude, the UE's service area, or the area of ​​the UE's location. Component 199 may be within one or more processors of one or more of CU 1810, DU 1830, and RU 1840. Component 199 may be one or more hardware components specifically configured to perform the recited processes / algorithms, implemented by one or more processors configured to perform the recited processes / algorithms, stored on a computer-readable medium for implementation by one or more processors, or some combination thereof. Network entity 1802 may include various components configured for various functions. In one configuration, network entity 1802 includes means for configuring sidelink transmission parameters based on at least one of the UE's altitude, the UE's service area, or the area of ​​the UE's location. The network entity includes a component for providing configuration of sidelink transmission parameters based on at least one of the UE's altitude, the UE's service range, or the area of ​​the UE's location. The network entity includes a component for communicating based on the sidelink transmission parameters and at least one of the UE's altitude, the UE's service range, or the area of ​​the UE's location. The component may be a component 199 of the network entity 1802 configured to perform the functions recited by the component. As described above, the network entity 1802 may include a TX processor 316, an RX processor 370, and a controller / processor 375. Therefore, in one configuration, the component may be a TX processor 316, an RX processor 370, and / or a controller / processor 375 configured to perform the functions recited by the component.

[0115] Various aspects presented herein provide for configuring limitations on sidelink transmit parameters of a UE. For example, a UAV including a UE may set conditions on its sidelink transmit capability to reduce interference to other UEs. The UE may receive a configuration of sidelink transmit parameters that may modify or change the sidelink transmit capability of the UE of the UAV based on at least one of the UE's altitude, the UE's service range, or the area where the UE is located. At least one advantage of the present disclosure is that the configuration of the sidelink transmit parameters may reduce interference to other UEs based on the UE's altitude, the UE's service range, or the area where the UE is located.

[0116] It should be understood that the specific order or hierarchy of blocks in the disclosed processes / flowcharts is merely illustrative of exemplary methods. It should be understood that the specific order or hierarchy of blocks in the processes / flowcharts may be rearranged based on design preferences. Furthermore, some blocks may be combined or omitted. The accompanying method claims provide elements of the various blocks in a sample order, but are not limited to the specific order or hierarchy provided.

[0117] The foregoing description is provided to enable any person skilled in the art to practice the various aspects described herein. Various modifications to these aspects will be apparent to those skilled in the art, and the general principles defined herein can be applied to other aspects. Therefore, the claims are not limited to the aspects described herein, but should be given the full scope consistent with the language claims. Unless specifically stated, references to elements in the singular form do not mean "one and only one", but "one or more". Terms such as "if", "when" and "while" do not imply a direct temporal relationship or reaction. That is, these phrases, such as "when...", do not mean immediate action in response to the occurrence of an action or during the occurrence of an action, but simply imply that if the conditions are met, the action will occur, but there is no need for a specific or immediate time limit for the action to occur. The word "exemplary" is used herein to mean "used as an example, instance or illustration". Any aspect described as "exemplary" herein is not necessarily interpreted as being preferred or having advantages over other aspects. Unless otherwise specifically stated, the term "some" refers to one or more. Combinations such as “at least one of A, B, or C,” “one or more of A, B, or C,” “at least one of A, B, and C,” “one or more of A, B, and C,” and “A, B, C, or any combination thereof” include any combination of A, B, and / or C, which may include multiple As, multiple Bs, or multiple Cs. Specifically, combinations such as “at least one of A, B, or C,” “one or more of A, B, or C,” “at least one of A, B, and C,” “one or more of A, B, and C,” and “A, B, C, or any combination thereof” may be only A, only B, only C, A and B, A and C, B and C, or A, B, and C, where any such combination may include one or more members of A, B, or C. A set should be interpreted as a set of elements, where the number of elements is one or more. Thus, for a set of X, X will include one or more elements. If a first device receives data from a second device or sends data to a second device, the data may be received / sent directly between the first device and the second device, or indirectly between the first device and the second device through a collection of devices. A device configured to "output" data (such as, transmit, signal, or message) may, for example, send the data with a transceiver, or may transmit the data to a device that sends the data. A device configured to "obtain" data (such as, transmit, signal, or message) may, for example, receive the data with a transceiver, or may obtain the data from a device that receives the data. All structural and functional equivalents of the elements of the various aspects described throughout this disclosure that are known or later become known to those of ordinary skill in the art are expressly incorporated herein by reference and are encompassed by the claims.Furthermore, nothing disclosed herein is intended to be dedicated to the public, regardless of whether such disclosure is explicitly recited in the claims. Words such as "module," "mechanism," "element," and "device" are not intended to replace the word "component." Thus, no claim element will be construed as part-plus-function unless the element is explicitly recited using the phrase "means for..."

[0118] As used herein, the phrase "based on" should not be interpreted as referring to a closed set of information, one or more conditions, one or more factors, etc. In other words, the phrase "based on A" (where "A" can be information, a condition, a factor, etc.) should be interpreted as "based at least on A" unless specifically stated differently.

[0119] The following aspects are merely illustrative and may be combined with other aspects or teachings described herein without limitation.

[0120] Aspect 1 is a method for performing wireless communication at a UE, the method comprising: receiving a configuration of sidelink transmission parameters based on at least one of the altitude of the UE, the UE service range, or the area of ​​the UE location; and communicating based on the sidelink transmission parameters and at least one of the altitude of the UE, the UE service range, or the area of ​​the UE location.

[0121] Aspect 2 is a method according to Aspect 1, wherein the method further includes: the sidelink transmission parameter includes a height-based condition based on a height threshold, wherein the sidelink transmission parameter indicates the UE: when the height of the UE is greater than or equal to the height threshold, use the first restriction in the sidelink transmission parameter to send the sidelink transmission to send the transmission block; and when the height of the UE is lower than the height threshold, use the second message and the second restriction in the sidelink transmission parameter to send the sidelink transmission to send the transmission block.

[0122] Aspect 3 is a method according to any one of aspects 1 and 2, wherein the method further includes: the side link transmission includes at least a BRID or DAA signal.

[0123] Aspect 4 is a method according to any one of aspects 1 to 3, the method further comprising: the altitude threshold is based on at least one of the following: sea level, ground level, altitude of a serving cell, or a reference point.

[0124] Aspect 5 is a method according to any one of Aspects 1 to 4, and the method also includes: the height-based condition is associated with at least one of the following items: a range of MCS used for the sidelink transmission, a range of the number of subchannels used for the sidelink transmission, an upper limit of sidelink retransmission, or an upper limit of sidelink transmission power used for the sidelink transmission.

[0125] Aspect 6 is a method according to any one of Aspects 1 to 5, the method further comprising: the sidelink transmission parameter includes a range-based condition based on a range threshold, wherein the sidelink transmission parameter indicates the UE: when the UE service range requirement is greater than or equal to the range threshold, use the first restriction in the sidelink transmission parameter to send the sidelink transmission to send the transmission block for UE service; and when the UE service range requirement is lower than the range threshold, use the second message and the second restriction in the sidelink transmission parameter to send the sidelink transmission to send the transmission block.

[0126] Aspect 7 is a method according to any one of Aspects 1 to 6, and the method also includes: the range-based condition includes a restriction on at least one of the following items: the range of MCS used for sidelink transmission, the range of the number of subchannels used for sidelink transmission, the upper limit of the number of sidelink retransmissions, or the upper limit of the sidelink transmission power used for the sidelink transmission.

[0127] Aspect 8 is a method according to any one of Aspects 1 to 7, the method further comprising: the sidelink transmission parameter includes a condition based on a geographical area, wherein the sidelink transmission parameter indicates the UE: when the UE position is within the geographical area, use the first restriction in the sidelink transmission parameter to send the sidelink transmission to send the transmission block served by the UE; and when the UE position is outside the geographical area, use the second message and the second restriction in the sidelink transmission parameter to send the sidelink transmission to send the transmission block.

[0128] Aspect 9 is a method according to any one of Aspects 1 to 8, and the method also includes: the geographical area-based condition includes a restriction on at least one of the following: a range of MCS used for sidelink transmission, a range of the number of subchannels used for the sidelink transmission, an upper limit on the number of sidelink retransmissions, or an upper limit on the sidelink transmission power.

[0129] Aspect 10 is an apparatus for wireless communication at a UE, the apparatus comprising: at least one processor coupled to a memory and at least one transceiver, the at least one processor configured to implement any one of aspects 1 to 9.

[0130] Aspect 11 is an apparatus for performing wireless communication at a UE, the apparatus comprising: means for implementing any one of aspects 1 to 9.

[0131] Aspect 12 is a computer-readable medium storing computer-executable code, wherein the code, when executed by a processor, causes the processor to implement any one of aspects 1 to 9.

[0132] Aspect 13 is a method for performing wireless communications at a network entity, the method comprising: configuring sidelink transmission parameters based on at least one of the altitude of the UE, the UE service range, or the area of ​​the UE location; providing configuration of the sidelink transmission parameters based on at least one of the altitude of the UE, the UE service range, or the area of ​​the UE location; and communicating based on the sidelink transmission parameters and at least one of the altitude of the UE, the UE service range, or the area of ​​the UE location.

[0133] Aspect 14 is a method according to Aspect 13, wherein the method further includes: the sidelink transmission parameter includes a height-based condition based on a height threshold, wherein the sidelink transmission parameter indicates the UE: when the height of the UE is greater than or equal to the height threshold, use the first restriction in the sidelink transmission parameter to send the sidelink transmission to send the transmission block; and when the height of the UE is lower than the height threshold, use the second message and the second restriction in the sidelink transmission parameter to send the sidelink transmission to send the transmission block.

[0134] Aspect 15 is a method according to any one of aspects 13 and 14, the method further comprising: the side link transmission includes at least a BRID or DAA signal.

[0135] Aspect 16 is a method according to any one of aspects 13 to 15, the method further comprising: the altitude threshold is based on at least one of the following: sea level, ground level, altitude of a serving cell, or a reference point.

[0136] Aspect 17 is a method according to any one of Aspects 13 to 16, wherein the method further includes: the height-based condition is associated with at least one of the following: a range of MCS used for the sidelink transmission, a range of the number of subchannels used for the sidelink transmission, an upper limit on sidelink retransmission, or an upper limit on the sidelink transmission power used for the sidelink transmission.

[0137] Aspect 18 is a method according to any one of Aspects 13 to 17, the method further comprising: the sidelink transmission parameter includes a range-based condition based on a range threshold, wherein the sidelink transmission parameter indicates the UE: when the UE service range requirement is greater than or equal to the range threshold, use the first restriction in the sidelink transmission parameter to send the sidelink transmission to send the transmission block for UE service; and when the UE service range requirement is lower than the range threshold, use the second message and the second restriction in the sidelink transmission parameter to send the sidelink transmission to send the transmission block.

[0138] Aspect 19 is a method according to any one of Aspects 13 to 18, wherein the range-based condition includes a restriction on at least one of the following: a range of MCS used for sidelink transmission, a range of the number of subchannels used for sidelink transmission, an upper limit on the number of sidelink retransmissions, or an upper limit on the sidelink transmission power used for the sidelink transmission.

[0139] Aspect 20 is a method according to any one of Aspects 13 to 19, the method further comprising: the sidelink transmission parameter includes a condition based on a geographical area, wherein the sidelink transmission parameter indicates the UE: when the UE position is within the geographical area, use the first restriction in the sidelink transmission parameter to send a sidelink transmission to send a transmission block for UE service; and when the UE position is outside the geographical area, use a second message and a second restriction in the sidelink transmission parameter to send the sidelink transmission to send the transmission block.

[0140] Aspect 21 is a method according to any one of Aspects 13 to 20, wherein the method further includes: the geographic area-based condition includes a restriction on at least one of the following: a range of MCS used for sidelink transmission, a range of the number of subchannels used for the sidelink transmission, an upper limit on the number of sidelink retransmissions, or an upper limit on the sidelink transmission power.

[0141] Aspect 22 is an apparatus for wireless communication at a UE, the apparatus comprising: at least one processor coupled to a memory and at least one transceiver, the at least one processor configured to implement any one of aspects 13 to 21.

[0142] Aspect 23 is an apparatus for performing wireless communication at a UE, the apparatus comprising: means for implementing any one of aspects 13 to 21.

[0143] Aspect 24 is a computer-readable medium storing computer-executable code, wherein the code, when executed by a processor, causes the processor to implement any one of aspects 13 to 21.

Claims

1. An apparatus for wireless communication at a user equipment (UE), the apparatus comprising: Memory; and at least one processor coupled to the memory and, based at least in part on information stored in the memory, configured to: receiving a configuration of a sidelink transmission parameter based on at least one of an altitude of the UE, a UE service range, or an area of ​​a UE location; as well as Communicating is performed based on the sidelink transmission parameters and at least one of the altitude of the UE, the UE service range, or the area of ​​the UE location.

2. The apparatus according to claim 1, further comprising: A transceiver is coupled to the at least one processor.

3. The apparatus of claim 1 , wherein the sidelink transmission parameters comprise an altitude-based condition based on an altitude threshold, wherein the sidelink transmission parameters instruct the UE to: when the altitude of the UE is greater than or equal to the altitude threshold, send a sidelink transmission using a first restriction in the sidelink transmission parameters to send a transport block; and when the altitude of the UE is less than the altitude threshold, send the sidelink transmission using a second message and a second restriction in the sidelink transmission parameters to send the transport block.

4. The apparatus of claim 3, wherein the sidelink transmission comprises at least a broadcast remote identifier (BRID) or a detect and avoid (DAA) signal. The apparatus of claim 3 , wherein the altitude threshold is based on at least one of: sea level, ground level, an altitude of a serving cell, or a reference point.

6. The apparatus of claim 3 , wherein the altitude-based condition is associated with at least one of: a range of modulation and coding schemes (MCSs) used for the sidelink transmissions, a range of a number of subchannels used for the sidelink transmissions, an upper limit on sidelink retransmissions, or an upper limit on sidelink transmit power used for the sidelink transmissions.

7. An apparatus according to claim 1, wherein the sidelink transmission parameter includes a range-based condition based on a range threshold, wherein the sidelink transmission parameter instructs the UE: when the UE service range requirement is greater than or equal to the range threshold, to use a first restriction in the sidelink transmission parameter to send a sidelink transmission to send a transmission block for UE service; and when the UE service range requirement is lower than the range threshold, to use a second message and a second restriction in the sidelink transmission parameter to send the sidelink transmission to send the transmission block.

8. The apparatus of claim 7, wherein the range-based condition comprises a restriction on at least one of: The range of modulation and coding schemes (MCS) used for sidelink transmissions, The range of the number of subchannels used for sidelink transmission, The upper limit of the number of sidelink retransmissions, or An upper limit on the sidelink transmit power used for the sidelink transmission.

9. An apparatus according to claim 1, wherein the sidelink transmission parameters include conditions based on a geographic area, wherein the sidelink transmission parameters instruct the UE: when the UE position is within the geographic area, use a first restriction of the sidelink transmission parameters to send a sidelink transmission to send a transmission block for UE service; and when the UE position is outside the geographic area, use a second message and a second restriction in the sidelink transmission parameters to send the sidelink transmission to send the transmission block.

10. The apparatus of claim 9, wherein the geographic region-based condition comprises a restriction on at least one of: The range of modulation and coding schemes (MCS) used for sidelink transmissions, a range of the number of subchannels used for the sidelink transmission, The upper limit of the number of sidelink retransmissions, or Upper limit for sidelink transmit power.

11. A method for wireless communication of a user equipment (UE), the method comprising: receiving a configuration of a sidelink transmission parameter based on at least one of an altitude of the UE, a UE service range, or an area of ​​a UE location; as well as Communicating is performed based on the sidelink transmission parameters and at least one of the altitude of the UE, the UE service range, or the area of ​​the UE location.

12. The method of claim 11 , wherein the sidelink transmission parameters comprise an altitude-based condition based on an altitude threshold, wherein the sidelink transmission parameters instruct the UE to: when the altitude of the UE is greater than or equal to the altitude threshold, send a sidelink transmission using a first restriction in the sidelink transmission parameters to send a transport block; and when the altitude of the UE is lower than the altitude threshold, send the sidelink transmission using a second message and a second restriction in the sidelink transmission parameters to send the transport block.

13. The method of claim 12 , wherein the altitude-based condition is associated with at least one of: a range of modulation and coding schemes (MCSs) used for the sidelink transmissions, a range of a number of subchannels used for the sidelink transmissions, an upper limit on sidelink retransmissions, or an upper limit on sidelink transmit power used for the sidelink transmissions.

14. The method of claim 11 , wherein the sidelink transmission parameter comprises a range-based condition based on a range threshold, wherein the sidelink transmission parameter instructs the UE to: when the UE service range requirement is greater than or equal to the range threshold, send a sidelink transmission using a first restriction in the sidelink transmission parameter to send a transport block for UE service; and when the UE service range requirement is less than the range threshold, send the sidelink transmission using a second message and a second restriction in the sidelink transmission parameter to send the transport block.

15. The method of claim 11 , wherein the sidelink transmission parameters comprise conditions based on a geographic area, wherein the sidelink transmission parameters instruct the UE to: when the UE is located within the geographic area, use a first restriction in the sidelink transmission parameters to send a sidelink transmission to send a transport block for UE service; and when the UE is located outside the geographic area, use a second message and a second restriction in the sidelink transmission parameters to send the sidelink transmission to send the transport block.

16. An apparatus for wireless communication at a network entity, the apparatus comprising: Memory; and at least one processor coupled to the memory and, based at least in part on information stored in the memory, configured to: configuring sidelink transmission parameters based on at least one of a user equipment (UE) altitude, a UE service range, or an area of ​​a UE location; providing configuration of the sidelink transmit parameters based on at least one of the altitude of the UE, the UE service range, or the area of ​​the UE location; as well as Communicating is performed based on the sidelink transmission parameters and at least one of the altitude of the UE, the UE service range, or the area of ​​the UE location.

17. The apparatus according to claim 16, further comprising: A transceiver is coupled to the at least one processor.

18. The apparatus of claim 16 , wherein the sidelink transmission parameters comprise an altitude-based condition based on an altitude threshold, wherein the sidelink transmission parameters instruct the UE to: when the altitude of the UE is greater than or equal to the altitude threshold, send a sidelink transmission using a first restriction in the sidelink transmission parameters to send a transport block; and when the altitude of the UE is less than the altitude threshold, send the sidelink transmission using a second message and a second restriction in the sidelink transmission parameters to send the transport block.

19. The apparatus of claim 18, wherein the sidelink transmission comprises at least a broadcast remote identifier (BRID) or a detect and avoid (DAA) signal.

20. The apparatus of claim 18, wherein the altitude threshold is based on at least one of: sea level, ground level, an altitude of a serving cell, or a reference point.

21. The apparatus of claim 18, wherein the altitude-based condition is associated with at least one of: a range of modulation and coding schemes (MCSs) used for the sidelink transmissions, a range of a number of subchannels used for the sidelink transmissions, an upper limit on sidelink retransmissions, or an upper limit on sidelink transmit power used for the sidelink transmissions.

22. An apparatus according to claim 16, wherein the sidelink transmission parameter includes a range-based condition based on a range threshold, wherein the sidelink transmission parameter instructs the UE: when the UE service range requirement is greater than or equal to the range threshold, to use a first restriction in the sidelink transmission parameter to send a sidelink transmission to send a transmission block for UE service; and when the UE service range requirement is lower than the range threshold, to use a second message and a second restriction in the sidelink transmission parameter to send the sidelink transmission to send the transmission block.

23. The apparatus of claim 22, wherein the range-based condition comprises a restriction on at least one of: The range of modulation and coding schemes (MCS) used for sidelink transmissions, The range of the number of subchannels used for sidelink transmission, The upper limit of the number of sidelink retransmissions, or An upper limit on the sidelink transmit power used for the sidelink transmission.

24. An apparatus according to claim 16, wherein the sidelink transmission parameters include conditions based on a geographic area, wherein the sidelink transmission parameters instruct the UE: when the UE position is within the geographic area, use a first restriction in the sidelink transmission parameters to send a sidelink transmission to send a transmission block for UE service; and when the UE position is outside the geographic area, use a second message and a second restriction in the sidelink transmission parameters to send the sidelink transmission to send the transmission block.

25. The apparatus of claim 24, wherein the geographic region-based condition comprises a restriction on at least one of: The range of modulation and coding schemes (MCS) used for sidelink transmissions, a range of the number of subchannels used for the sidelink transmission, The upper limit of the number of sidelink retransmissions, or Upper limit for sidelink transmit power.

26. A method for wireless communication of a network entity, the method comprising: configuring sidelink transmission parameters based on at least one of a user equipment (UE) altitude, a UE service range, or an area of ​​a UE location; providing configuration of the sidelink transmit parameters based on at least one of the altitude of the UE, the UE service range, or the area of ​​the UE location; as well as Communicating is performed based on the sidelink transmission parameters and at least one of the altitude of the UE, the UE service range, or the area of ​​the UE location.

27. A method according to claim 26, wherein the sidelink transmission parameters include an altitude-based condition based on an altitude threshold, wherein the sidelink transmission parameters instruct the UE: when the altitude of the UE is greater than or equal to the altitude threshold, use a first restriction in the sidelink transmission parameters to send a sidelink transmission to send a transport block; and when the altitude of the UE is lower than the altitude threshold, use a second message and a second restriction in the sidelink transmission parameters to send the sidelink transmission to send the transport block.

28. The method of claim 27, wherein the altitude-based condition is associated with at least one of: a range of modulation and coding schemes (MCSs) used for the sidelink transmissions, a range of a number of subchannels used for the sidelink transmissions, an upper limit on sidelink retransmissions, or an upper limit on sidelink transmit power used for the sidelink transmissions.

29. A method according to claim 26, wherein the sidelink transmission parameter includes a range-based condition based on a range threshold, wherein the sidelink transmission parameter instructs the UE: when the UE service range requirement is greater than or equal to the range threshold, use a first restriction in the sidelink transmission parameter to send a sidelink transmission to send a transmission block for UE service; and when the UE service range requirement is lower than the range threshold, use a second message and a second restriction in the sidelink transmission parameter to send the sidelink transmission to send the transmission block.

30. The method of claim 26, wherein the sidelink transmission parameters include conditions based on a geographic area, wherein the sidelink transmission parameters instruct the UE to: when the UE is located within the geographic area, use a first restriction in the sidelink transmission parameters to send a sidelink transmission to send a transport block for UE service; and when the UE is located outside the geographic area, use a second message and a second restriction in the sidelink transmission parameters to send the sidelink transmission to send the transport block.

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