Positioning Assisted New Radio RACH Procedure

Abstract

Various aspects of the present disclosure generally relate to wireless communications. In some aspects, a user equipment may transmit to a base station an indication of a selected random access channel (RACH) procedure selected based at least in part on positioning state information (PSI) associated with a UE, wherein the PSI is based at least in part on one or more positioning measurements obtained by the UE; and receive from the base station a resource configuration for the selected RACH procedure. Numerous other aspects are provided.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This patent application claims priority to Greek Patent Application No. 20200100181, entitled “POSITIONING AIDED NEW RADIO RACH PROCEDURE”, filed on April 8, 2020 and assigned to the assignee of this application. The disclosure of this prior application is considered part of this patent application and is incorporated into this patent application by reference.

[0003] Public domain

[0004] Aspects of the present disclosure relate generally to wireless communications, and techniques and apparatus for positioning assisted new radio procedures.

[0005] background

[0006] Wireless communication systems are widely deployed to provide various telecommunication services such as telephony, video, data, messaging, and broadcasting. Typical wireless communication systems may employ multiple access technologies that can support communication with multiple users by sharing available system resources (e.g., bandwidth, transmit power, etc.). Examples of such multiple access technologies include code division multiple access (CDMA) systems, time division multiple access (TDMA) systems, frequency division multiple access (FDMA) systems, orthogonal frequency division multiple access (OFDMA) systems, single carrier frequency division multiple access (SC-FDMA) systems, time division synchronous code division multiple access (TD-SCDMA) systems, and long term evolution (LTE). LTE / LTE-Advanced is a set of enhancements to the Universal Mobile Telecommunications System (UMTS) mobile standard promulgated by the Third Generation Partnership Project (3GPP).

[0007] A wireless network may include several base stations (BSs) that can support communications for several user equipments (UEs). A UE may communicate with a BS via a downlink and an uplink. A "downlink" (or "forward link") refers to a communication link from a BS to a UE, while an "uplink" (or "reverse link") refers to a communication link from a UE to a BS. As will be described in more detail herein, a BS may be referred to as a Node B, a gNB, an Access Point (AP), a Radio Head, a Transmit Receiving Point (TRP), a New Radio (NR) BS, a 5G Node B, and the like.

[0008] The above multiple access technologies have been adopted in various telecommunication standards to provide a common protocol that enables different user equipment to communicate at the city, country, region, and even global level. NR (which may also be referred to as 5G) is an enhancement set to the LTE mobile standard promulgated by 3GPP. NR is designed to better support mobile broadband Internet access by using orthogonal frequency division multiplexing (OFDM) (CP-OFDM) with cyclic prefix (CP) on the downlink (DL), using CP-OFDM and / or SC-FDM (e.g., also known as discrete Fourier transform spread OFDM (DFT-s-OFDM)) on the uplink (UL), and supporting beamforming, multiple input multiple output (MIMO) antenna technology and carrier aggregation to improve spectrum efficiency, reduce costs, improve services, utilize new spectrum, and better integrate with other open standards. As the demand for mobile broadband access continues to grow, further improvements to LTE, NR and other radio access technologies are still useful.

[0009] Overview

[0010] In some aspects, a wireless communication method performed by a user equipment may include: transmitting to a base station an indication of a selected random access channel (RACH) procedure selected based at least in part on positioning state information (PSI) associated with the UE, wherein the PSI is based at least in part on one or more positioning measurements obtained by the UE; and receiving a resource configuration for the selected RACH procedure from the base station.

[0011] In some aspects, a wireless communication method performed by a base station may include: receiving an indication of a selected RACH procedure from a UE based at least in part on a PSI associated with the UE, wherein the PSI is based at least in part on one or more positioning measurements obtained by the UE; and transmitting a resource configuration for the selected RACH procedure to the UE.

[0012] In some aspects, a UE for wireless communication may include a memory and one or more processors coupled to the memory. The memory and the one or more processors may be configured to: transmit to a base station an indication of a selected RACH procedure based at least in part on a PSI associated with the UE, wherein the PSI is based at least in part on one or more positioning measurements obtained by the UE; and receive a resource configuration for the selected RACH procedure from the base station.

[0013] In some aspects, a base station for wireless communication may include a memory and one or more processors coupled to the memory. The memory and the one or more processors may be configured to: receive from a UE an indication of a selected RACH procedure based at least in part on a PSI associated with the UE, wherein the PSI is based at least in part on one or more positioning measurements obtained by the UE; and transmit to the UE a resource configuration for the selected RACH procedure.

[0014] In some aspects, a non-transitory computer-readable medium may store one or more instructions for wireless communication. The one or more instructions, when executed by one or more processors of a UE, may cause the one or more processors to: transmit to a base station an indication of a selected RACH procedure based at least in part on a PSI associated with the UE, wherein the PSI is based at least in part on one or more positioning measurements obtained by the UE; and receive from the base station a resource configuration for the selected RACH procedure.

[0015] In some aspects, a non-transitory computer-readable medium may store one or more instructions for wireless communication. The one or more instructions, when executed by one or more processors of a base station, may cause the one or more processors to: receive from a UE an indication of a selected RACH procedure based at least in part on a PSI associated with the UE, wherein the PSI is based at least in part on one or more positioning measurements obtained by the UE; and transmit to the UE a resource configuration for the selected RACH procedure.

[0016] In some aspects, an apparatus for wireless communications may include: means for transmitting to a base station an indication of a RACH procedure based at least in part on a PSI associated with the apparatus, wherein the PSI is based at least in part on one or more positioning measurements obtained by the apparatus; and means for receiving from the base station a resource configuration for the selected RACH procedure.

[0017] In some aspects, an apparatus for wireless communication may include: a device for receiving an indication of a selected RACH procedure based at least in part on a PSI associated with the UE from a UE, wherein the PSI is based at least in part on one or more positioning measurements obtained by the UE; and a device for transmitting a resource configuration for the selected RACH procedure to the UE.

[0018] Aspects generally include methods, apparatus, systems, computer program products, non-transitory computer-readable media, user equipment, base stations, wireless communication devices, and / or processing systems as substantially described herein with reference to and as illustrated in the drawings and specification.

[0019] The foregoing has broadly outlined the features and technical advantages of examples according to the present disclosure in an effort to make the following detailed description better understood. Additional features and advantages will be described hereinafter. The disclosed concepts and specific examples can be easily used as a basis for modifying or designing other structures for implementing the same purpose as the present disclosure. Such equivalent constructions do not depart from the scope of the appended claims. The characteristics of the concepts disclosed herein, both in terms of their organization and method of operation, and the associated advantages will be better understood by considering the following description in conjunction with the accompanying drawings. Each of the accompanying drawings is provided for the purpose of illustration and description and is not intended to define limitations on the claims.

[0020] Although various aspects are described in the present disclosure by explaining some examples, it will be understood by those skilled in the art that such aspects can be implemented in many different arrangements and scenarios. The technology described herein can be implemented using different platform types, devices, systems, shapes, sizes and / or packaging arrangements. For example, some aspects can be implemented via integrated chip embodiments or other devices based on non-module components (e.g., end-user devices, vehicles, communication equipment, computing equipment, industrial equipment, retail / shopping equipment, medical equipment, or devices that enable artificial intelligence). Various aspects can be implemented in chip-level components, module components, non-module components, non-chip-level components, device-level components, or system-level components. The equipment incorporating the various aspects and features described may include additional components and features for implementing and practicing the various aspects claimed and described. For example, the transmission and reception of wireless signals may include several components (e.g., hardware components, including antennas, RF chains, power amplifiers, modulators, buffers, processors, interleavers, adders, or summers) for analog and digital purposes. The various aspects described herein are intended to be practiced in various devices, components, systems, distributed arrangements, or end-user devices of various sizes, shapes, and configurations. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to understand the above-stated features of the present disclosure in detail, the above briefly summarized content may be described in more detail with reference to various aspects, some of which are illustrated in the accompanying drawings. However, it should be noted that the accompanying drawings only illustrate certain typical aspects of the present disclosure and should not be considered to limit its scope, as the description may allow for other equally effective aspects. The same reference numerals in different drawings may identify the same or similar elements.

[0023] Figure 1 is a diagram illustrating an example of a wireless network according to the present disclosure.

[0024] Figure 2 is a diagram illustrating an example in which a base station and a UE are in communication in a wireless network according to the present disclosure.

[0025] Figure 3is a diagram illustrating an example of a call flow for configuring an uplink bandwidth portion for a four-step random access channel (RACH) procedure according to the present disclosure.

[0026] Figure 4 is a diagram illustrating an example of a call flow for configuring an uplink bandwidth portion for a two-step RACH procedure according to the present disclosure.

[0027] Figure 5 and Figure 6 is a diagram illustrating an example of a positioning-assisted NR RACH procedure according to the present disclosure.

[0028] Figure 7 is a diagram illustrating an example process performed, for example, by user equipment according to the present disclosure.

[0029] Figure 8 is a diagram illustrating an example process performed, for example, by a base station according to the present disclosure.

[0030] Detailed Description

[0031] The various aspects of the present disclosure are described more fully below with reference to the accompanying drawings. However, the present disclosure can be implemented in many different forms and should not be interpreted as being limited to any specific structure or function given throughout the present disclosure. On the contrary, these aspects are provided to make the present disclosure thorough and complete, and it will fully convey the scope of the present disclosure to those skilled in the art. Based on the teachings of this article, those skilled in the art will appreciate that the scope of the present disclosure is intended to cover any aspect of the present disclosure disclosed herein, whether it is independently implemented or implemented in combination with any other aspect of the present disclosure. For example, any number of aspects set forth herein can be used to implement a device or practice method. In addition, the scope of the present disclosure is intended to cover such devices or methods practiced using supplements or other other structures, functionality, or structures and functionality as the various aspects of the present disclosure set forth herein. It should be understood that any aspect of the present disclosure disclosed herein can be implemented by one or more elements of the claims.

[0032] Several aspects of telecommunication systems will now be presented with reference to various devices and techniques. These devices and techniques will be described in the following detailed description and illustrated in the accompanying drawings by various blocks, modules, components, circuits, steps, processes, algorithms, etc. (collectively referred to as "elements"). These elements can be implemented using hardware, software, or a combination thereof. Whether such elements are implemented as hardware or software depends on the specific application and the design constraints imposed on the overall system.

[0033] It should be noted that while various aspects may be described herein using terminology generally associated with 5G or NR radio access technologies (RATs), various aspects of the present disclosure may be applied to other RATs, such as 3G RATs, 4G RATs, and / or RATs after 5G (e.g., 6G).

[0034] Figure 1 1 is a diagram illustrating an example of a wireless network 100 according to the present disclosure. The wireless network 100 may be a 5G (NR) network and / or an LTE network, etc. or may include elements thereof. The wireless network 100 may include several base stations 110 (shown as BS110a, BS 110b, BS 110c, and BS 110d) and other network entities. A base station (BS) is an entity that communicates with a user equipment (UE) and may also be referred to as an NR BS, a B node, a gNB, a 5G B node (NB), an access point, a transmit receive point (TRP), etc. Each BS may provide communication coverage for a specific geographic area. In 3GPP, the term "cell" may refer to a coverage area of ​​a BS and / or a BS subsystem serving the coverage area, depending on the context in which the term is used.

[0035] A BS may provide communication coverage for a macro cell, a pico cell, a femto cell, and / or another type of cell. A macro cell may cover a relatively large geographic area (e.g., several kilometers in radius) and may allow unrestricted access by UEs with service subscriptions. A pico cell may cover a relatively small geographic area and may allow unrestricted access by UEs with service subscriptions. A femto cell may cover a relatively small geographic area (e.g., a residence) and may allow restricted access by UEs associated with the femto cell (e.g., UEs in a closed subscriber group (CSG)). A BS for a macro cell may be referred to as a macro BS. A BS for a pico cell may be referred to as a pico BS. A BS for a femto cell may be referred to as a femto BS or a home BS. In Figure 1 In the example shown in , BS 110a may be a macro BS for macro cell 102a, BS 110b may be a pico BS for pico cell 102b, and BS 110c may be a femto BS for femto cell 102c. The BS may support one or more (e.g., three) cells. The terms "eNB", "base station", "NR BS", "gNB", "TRP", "AP", "B node", "5G NB", and "cell" may be used interchangeably herein.

[0036] In some aspects, the cell may not necessarily be stationary, and the geographic area of ​​the cell may move depending on the location of the mobile BS. In some aspects, the BSs may be interconnected to each other and / or to one or more other BSs or network nodes (not shown) in the wireless network 100 via various types of backhaul interfaces, such as direct physical connections or virtual networks, using any suitable transport network.

[0037] The wireless network 100 may also include a relay station. A relay station is an entity that can receive transmissions of data from an upstream station (e.g., a BS or a UE) and send transmissions of the data to a downstream station (e.g., a UE or a BS). A relay station may also be a UE that can relay transmissions for other UEs. Figure 1 In the example shown in , relay BS 110d may communicate with macro BS 110a and UE 120d to facilitate communication between BS 110a and UE 120d. A relay BS may also be referred to as a relay station, relay base station, relay, or the like.

[0038] The wireless network 100 may be a heterogeneous network including different types of BSs, such as a macro BS, a pico BS, a femto BS, a relay BS, etc. These different types of BSs may have different transmit power levels, different coverage areas, and different effects on interference in the wireless network 100. For example, a macro BS may have a high transmit power level (e.g., 5 to 40 watts), while a pico BS, a femto BS, and a relay BS may have a lower transmit power level (e.g., 0.1 to 2 watts).

[0039] A network controller 130 may be coupled to a set of BSs and may provide coordination and control of these BSs. The network controller 130 may communicate with each BS via a backhaul. The BSs may also communicate with each other directly or indirectly via a wireless or wired backhaul.

[0040] UEs 120 (e.g., 120a, 120b, 120c) may be dispersed throughout the wireless network 100, and each UE may be stationary or mobile. UEs may also be referred to as access terminals, terminals, mobile stations, subscriber units, stations, etc. A UE may be a cellular phone (e.g., a smart phone), a personal digital assistant (PDA), a wireless modem, a wireless communication device, a handheld device, a laptop computer, a cordless phone, a wireless local loop (WLL) station, a tablet, a camera, a gaming device, a netbook, a smartbook, an ultrabook, a medical device or equipment, a biometric sensor / device, a wearable device (smart watch, smart clothing, smart glasses, smart wristband, smart jewelry (e.g., smart ring, smart bracelet)), an entertainment device (e.g., a music or video device, or a satellite radio), a vehicle component or sensor, a smart meter / sensor, an industrial manufacturing equipment, a global positioning system device, or any other suitable device configured to communicate via a wireless or wired medium.

[0041] Some UEs may be considered as machine type communication (MTC) UEs, or evolved or enhanced machine type communication (eMTC) UEs. MTC and eMTC UEs include, for example, robots, drones, remote devices, sensors, meters, monitors, and / or location tags, which may communicate with a base station, another device (e.g., a remote device), or some other entity. A wireless node may provide connectivity to or to a network (e.g., a wide area network (such as the Internet) or a cellular network) via, for example, a wired or wireless communication link. Some UEs may be considered as Internet of Things (IoT) devices, and / or may be implemented as NB-IoT (narrowband Internet of Things) devices. Some UEs may be considered as client equipment (CPE). UE 120 may be included inside a housing that houses components of UE 120, such as a processor component and / or a memory component. In some aspects, a processor component and a memory component may be coupled together. For example, a processor component (e.g., one or more processors) and a memory component (e.g., a memory) may be operatively coupled, communicatively coupled, electronically coupled, and / or electrically coupled.

[0042] In general, any number of wireless networks may be deployed in a given geographic area. Each wireless network may support a specific RAT and may operate on one or more frequencies. RAT may also be referred to as radio technology, air interface, etc. Frequency may also be referred to as carrier, frequency channel, etc. Each frequency may support a single RAT in a given geographic area to avoid interference between wireless networks of different RATs. In some cases, NR or 5G RAT networks may be deployed.

[0043] In some aspects, two or more UEs 120 (e.g., shown as UE 120a and UE 120e) may communicate directly (e.g., without using base station 110 as an intermediary to communicate with each other) using one or more sidelink channels. For example, UE 120 may communicate using peer-to-peer (P2P) communication, device-to-device (D2D) communication, vehicle-to-everything (V2X) protocols (e.g., which may include vehicle-to-vehicle (V2V) protocols or vehicle-to-infrastructure (V2I) protocols), and / or mesh networks. In this case, UE 120 may perform scheduling operations, resource selection operations, and / or other operations described elsewhere herein as being performed by base station 110.

[0044] The devices of the wireless network 100 may communicate using an electromagnetic spectrum that may be subdivided into various categories, bands, channels, etc. based on frequency or wavelength. For example, the devices of the wireless network 100 may communicate using an operating band having a first frequency range (FR1) and / or may communicate using an operating band having a second frequency range (FR2), the first frequency range (FR1) may span 410 MHz to 7.125 GHz, and the second frequency range (FR2) may span 24.25 GHz to 52.6 GHz. Frequencies between FR1 and FR2 are sometimes referred to as mid-band frequencies. Although a portion of FR1 is greater than 6 GHz, FR1 is often referred to as a "sub-6 GHz" band. Similarly, FR2 is often referred to as a "millimeter wave" band, although it is different from the extremely high frequency (EHF) band (30 GHz–300 GHz) identified as a "millimeter wave" band by the International Telecommunication Union (ITU). Therefore, unless otherwise specifically stated, it should be understood that the terms "sub-6 GHz" and the like, if used herein, may broadly refer to frequencies less than 6 GHz, frequencies within FR1, and / or mid-band frequencies (e.g., greater than 7.125 GHz). Similarly, unless otherwise specifically stated, it should be understood that the terms "millimeter wave" and the like, if used herein, may broadly refer to frequencies within the EHF band, frequencies within FR2, and / or mid-band frequencies (e.g., less than 24.25 GHz). It is contemplated that the frequencies included in FR1 and FR2 may be modified, and the techniques described herein are applicable to those modified frequency ranges.

[0045] As indicated above, Figure 1 are provided as examples. Other examples may differ from those described herein. Figure 1 Examples described.

[0046] Figure 2is a diagram illustrating an example 200 of a base station 110 and a UE 120 in communication in a wireless network 100 according to the present disclosure. The base station 110 may be equipped with T antennas 234a through 234t, and the UE 120 may be equipped with R antennas 252a through 252r, where in general T≥1 and R≥1.

[0047] At the base station 110, the transmit processor 220 may receive data for one or more UEs from the data source 212, select one or more modulation and coding schemes (MCS) for each UE based at least in part on a channel quality indicator (CQI) received from the UE, process (e.g., encode and modulate) the data for the UE based at least in part on the MCS selected for each UE, and provide data symbols for all UEs. The transmit processor 220 may also process system information (e.g., for semi-static resource partitioning information (SRPI)) and control information (e.g., CQI requests, grants, and / or upper layer signaling), and provide overhead symbols and control symbols. The transmit processor 220 may also generate reference symbols for reference signals (e.g., cell-specific reference signals (CRS) or demodulation reference signals (DMRS)) and synchronization signals (e.g., primary synchronization signals (PSS) or secondary synchronization signals (SSS)). A transmit (TX) multiple-input multiple-output (MIMO) processor 230 may perform spatial processing (e.g., precoding) on ​​data symbols, control symbols, overhead symbols, and / or reference symbols, where applicable, and may provide T output symbol streams to T modulators (MODs) 232a through 232t. Each modulator 232 may process a respective output symbol stream (e.g., for OFDM) to obtain an output sample stream. Each modulator 232 may further process (e.g., convert to analog, amplify, filter, and upconvert) the output sample stream to obtain a downlink signal. The T downlink signals from modulators 232a through 232t may be transmitted via T antennas 234a through 234t, respectively.

[0048] At UE 120, antennas 252a to 252r may receive downlink signals from base station 110 and / or other base stations and may provide received signals to demodulators (DEMODs) 254a to 254r, respectively. Each demodulator 254 may condition (e.g., filter, amplify, downconvert, and digitize) the received signal to obtain input samples. Each demodulator 254 may further process the input samples (e.g., for OFDM) to obtain received symbols. A MIMO detector 256 may obtain received symbols from all R demodulators 254a to 254r, perform MIMO detection on the received symbols where applicable, and provide detected symbols. A receive processor 258 may process (e.g., demodulate and decode) the detected symbols, provide decoded data for UE 120 to a data sink 260, and provide decoded control information and system information to a controller / processor 280. The term "controller / processor" may refer to one or more controllers, one or more processors, or a combination thereof. The channel processor may determine a reference signal received power (RSRP) parameter, a received signal strength indicator (RSSI) parameter, a reference signal received quality (RSRQ) parameter, and / or a channel quality indicator (CQI) parameter, etc. In some aspects, one or more components of the UE 120 may be included in the housing 284.

[0049] The network controller 130 may include a communication unit 294, a controller / processor 290, and a memory 292. The network controller 130 may include, for example, one or more devices in a core network. The network controller 130 may communicate with the base station 110 via the communication unit 294.

[0050] Antennas (e.g., antennas 234a to 234t and / or antennas 252a to 252r) may include, or may be included within, one or more antenna panels, antenna groups, antenna element sets, and / or antenna arrays, etc. Antenna panels, antenna groups, antenna element sets, and / or antenna arrays may include one or more antenna elements. Antenna panels, antenna groups, antenna element sets, and / or antenna arrays may include coplanar antenna element sets and / or non-coplanar antenna element sets. Antenna panels, antenna groups, antenna element sets, and / or antenna arrays may include antenna elements within a single housing and / or antenna elements within multiple housings. Antenna panels, antenna groups, antenna element sets, and / or antenna arrays may include antenna elements coupled to one or more transmission and / or reception components (such as Figure 2 One or more antenna elements of one or more components).

[0051] On the uplink, at the UE 120, a transmit processor 264 may receive and process data from a data source 262 and control information (e.g., for reports including RSRP, RSSI, RSRQ, and / or CQI) from a controller / processor 280. The transmit processor 264 may also generate reference symbols for one or more reference signals. The symbols from the transmit processor 264 may be precoded by the TX MIMO processor 266, where applicable, further processed by the modulators 254a through 254r (e.g., for DFT-s-OFDM or CP-OFDM), and transmitted to the base station 110. In some aspects, the modulator and demodulator (e.g., MOD / DEMOD 254) of the UE 120 may be included in a modem of the UE 120. In some aspects, the UE 120 includes a transceiver. The transceiver may include any combination of antennas 252, modulators and / or demodulators 254, MIMO detectors 256, receive processors 258, transmit processors 264, and / or TX MIMO processors 266. The transceiver may be used by a processor (e.g., controller / processor 280) and memory 282 to perform aspects of any of the methods described herein, for example, as described with reference to Figure 5-Figure 8 as described.

[0052] At the base station 110, uplink signals from the UE 120 and other UEs may be received by the antenna 234, processed by the demodulator 232, detected by the MIMO detector 236 where applicable, and further processed by the receive processor 238 to obtain decoded data and control information transmitted by the UE 120. The receive processor 238 may provide the decoded data to the data sink 239 and the decoded control information to the controller / processor 240. The base station 110 may include a communication unit 244 and communicate with the network controller 130 via the communication unit 244. The base station 110 may include a scheduler 246 to schedule the UE 120 for downlink and / or uplink communications. In some aspects, the modulator and demodulator (e.g., MOD / DEMOD 232) of the base station 110 may be included in a modem of the base station 110. In some aspects, the base station 110 includes a transceiver. The transceiver may include any combination of antennas 234, modulators and / or demodulators 232, MIMO detectors 236, receive processors 238, transmit processors 220, and / or TX MIMO processors 230. The transceiver may be used by a processor (e.g., controller / processor 240) and memory 242 to perform aspects of any of the methods described herein, for example, as described with reference to Figure 5-Figure 8 as described.

[0053] The controller / processor 240 of the base station 110, the controller / processor 280 of the UE 120, and / or Figure 2 Any other components of the base station 110 may perform one or more techniques associated with the positioning-assisted NR RACH procedure, as described in more detail elsewhere herein. For example, the controller / processor 240 of the base station 110, the controller / processor 280 of the UE 120, and / or Figure 2 Any other component of the Figure 7 The process of 700 Figure 8 800, and / or operations of other processes as described herein. Memories 242 and 282 may store data and program codes for base station 110 and UE 120, respectively. In some aspects, memory 242 and / or memory 282 may include: a non-transitory computer-readable medium storing one or more instructions (e.g., code and / or program code) for wireless communication. For example, the one or more instructions, when executed (e.g., directly, or after compilation, conversion, and / or interpretation) by one or more processors of base station 110 and / or UE 120, may cause the one or more processors, UE 120, and / or base station 110 to perform or direct, for example Figure 7 The process of 700 Figure 8 In some aspects, executing instructions may include running instructions, converting instructions, compiling instructions, and / or interpreting instructions, etc.

[0054] In some aspects, UE 120 may include: means for transmitting to a base station an indication of a selected random access channel (RACH) procedure selected based at least in part on positioning state information (PSI) associated with the UE, wherein the PSI is based at least in part on one or more positioning measurements obtained by the UE; means for receiving from the base station a resource configuration for the selected RACH procedure, and so on. In some aspects, such means may include in conjunction with Figure 2 One or more components of UE 120 are depicted, such as controller / processor 280, transmit processor 264, TX MIMO processor 266, MOD 254, antenna 252, DEMOD 254, MIMO detector 256, receive processor 258, and the like.

[0055] In some aspects, base station 110 may include: means for receiving from a UE an indication of a selected RACH procedure based at least in part on a PSI associated with the UE, wherein the PSI is based at least in part on one or more positioning measurements obtained by the UE; means for transmitting to the UE a resource configuration for the selected RACH procedure, etc. In some aspects, such means may include in conjunction with Figure 2One or more components of base station 110 are depicted, such as antenna 234, DEMOD 232, MIMO detector 236, receive processor 238, controller / processor 240, transmit processor 220, TX MIMO processor 230, MOD 232, antenna 234, and the like.

[0056] although Figure 2 The blocks in the 200 and 210 are illustrated as different components, but the functions described above with respect to these blocks may be implemented with a single hardware, software, or a combination of components or a combination of various components. For example, the functions described with respect to the transmit processor 264, the receive processor 258, and / or the TX MIMO processor 266 may be performed by or under the control of the controller / processor 280.

[0057] As indicated above, Figure 2 are provided as examples. Other examples may differ from those described herein. Figure 2 Examples described.

[0058] Figure 3 is a diagram illustrating an example 300 of a call flow for configuring an uplink bandwidth portion for a four-step random access channel (RACH) procedure in accordance with the present disclosure.

[0059] like Figure 3 As shown in FIG. 1 , BS 110 and UE 120 exchange communications, including communications of RACH procedures, based at least in part on an initial activity event occurring with UE 120. The initial activity may include UE 120 powering on, UE 120 entering a coverage area of ​​BS 110, and the like. According to some aspects described herein, UE 120 and BS 110 may utilize an initial active uplink bandwidth portion to perform Figure 3 According to some aspects of the present disclosure, an uplink physical resource block (PRB) grid may be established for communications between UE 120 and BS 110 according to the RACH procedure. In this manner, the initial active uplink bandwidth portion may enable UE 120 to save power resources (rather than transmitting across a wider bandwidth), ensure that UE 120 has bandwidth capabilities to communicate with BS 110 (because some types of UE 120 may not have wide bandwidth capabilities), and enable BS 110 to balance the load of the bandwidth portions of the bandwidth used to communicate with UE 120 (e.g., by evenly distributing communications with the UE across the uplink bandwidth portions of the uplink bandwidth).

[0060] As shown at 310, BS 110 transmits to UE 120 and UE 120 receives one or more synchronization signal blocks (SSBs) and some minimum system information (MSI) including RACH configuration information. For example, MSI may include communication information used by UE 120 to communicate with BS 110. According to some aspects described herein, RACH configuration information may include information related to the UE 120 for communicating with BS 110. Figure 3 The RACH configuration information may be associated with an initial active uplink bandwidth portion of a RACH procedure of the UE 120 to enable the UE 120 and the BS 110 to establish a communication link. For example, the RACH configuration information may indicate or provide instructions for identifying the following: a PRB frequency position of the initial uplink active bandwidth portion, a bandwidth of the initial uplink active bandwidth portion, and / or a parameter set of the initial uplink active bandwidth portion. Using the PRB frequency position, bandwidth, and / or parameter set of the initial uplink active bandwidth portion, an uplink PRB grid may be established for communication between the UE 120 and the BS 110.

[0061] like Figure 3 As shown in , the RACH procedure is performed using the initial active uplink bandwidth portion (as illustrated by reference numerals 320-350). Figure 3 In the RACH procedure of the present invention and as shown by reference numeral 320, using the information from the MSI, the UE 120 sends a random access message (RAM) with a RACH request via a physical random access channel (PRACH). The RAM may include a preamble (sometimes referred to as a random access preamble, a PRACH preamble, a RAM preamble, etc.). The message including the preamble may be referred to as message 1, msg1, Msg.1, MSG1, a first message, an initial message, etc. in the four-step random access procedure. The random access message may include a random access preamble identifier.

[0062] As indicated by reference numeral 330, BS 110 may reply to Msg.1 via PDSCH (with a random access response (RAR)). The message including the RAR may be referred to as message 2, msg2, Msg.2, MSG2, or a second message in the four-step random access procedure. In some aspects, the RAR may indicate the detected random access preamble identifier (e.g., received from UE 120 in Msg.1).

[0063] As indicated by reference numeral 340, UE 120 sends an RRC connection request message via the PUSCH. The RRC connection request message may be referred to as message 3, msg3, Msg.3, MSG3, UE identification message, or third message of the four-step random access procedure. In some aspects, the RRC connection request may include a UE identifier, UCI, PUSCH communication (e.g., RRC connection request), and the like.

[0064] As indicated by reference numeral 350, BS 110 transmits an RRC connection setup message via the PDSCH. The RRC connection setup message may be referred to as message 4, msg4, Msg.4, MSG4, or the fourth message of the four-step random access procedure. In some aspects, the RRC connection setup message may include a detected UE identifier, a timing advance value, contention resolution information, and the like. Following the RACH procedure, as indicated by reference numeral 360, UE 120 may transmit an acknowledgment indicating that UE 120 is ready to communicate with BS 110 via an uplink PRB grid (which is used for a communication link between UE 120 and BS 110).

[0065] As indicated above, Figure 3 are provided as examples. Other examples may differ from those described herein. Figure 3 Examples described.

[0066] Figure 4 is a diagram illustrating an example 400 of a call flow for configuring an uplink bandwidth portion for a two-step RACH procedure in accordance with the present disclosure.

[0067] like Figure 4 As shown in FIG. 1 , base station 110 and UE 120 may communicate with each other to perform a two-step RACH procedure.

[0068] As indicated by reference numeral 405, the base station 110 may transmit, and the UE 120 may receive, one or more SSBs and / or MSIs including RACH configuration information. The MSI may include, for example, one or more SIBs. The SSBs, MSIs, etc. may include information related to one or more RACH opportunity (RO) configurations, such as information related to one or more ordered preamble resources. As further indicated by reference numeral 410, the UE 120 may perform downlink (DL) synchronization (e.g., using one or more SSBs), decode system information (SI) and / or RRC configuration information included in one or more SIBs, perform one or more measurements of reference signals (RS), and the like. Based at least in part on performing the second operation 410, the UE 120 may determine one or more parameters for transmitting a random access message (RAM) in a two-step RACH procedure. For example, the UE 120 may determine one or more physical random access channel (PRACH) transmission parameters to be used to transmit the RAM, may determine one or more parameters for generating a preamble for the RAM, may identify one or more uplink resources to be used to transmit the RAM, and the like.

[0069] As shown by reference numeral 415, UE 120 may transmit a RAM preamble. As shown by reference numeral 420, UE 120 may transmit a RAM payload. As shown, as part of the first step of a two-step RACH procedure, UE 120 may transmit a RAM preamble and a RAM payload. RAM is sometimes referred to as message A, msgA, uplink message, request message, first (or initial) message, etc. in a two-step RACH procedure. RAM preamble is sometimes referred to as message A preamble, msgA preamble, preamble, etc. RAM payload is sometimes referred to as message A payload, msgA payload, payload, etc.

[0070] In some aspects, the RAM may include some or all of the contents of message 1 (msg1) and message 3 (msg3) of the four-step RACH procedure. For example, the RAM preamble may include some or all of the contents of message 1 (e.g., the RACH preamble), and the RAM payload may include some or all of the contents of message 3. For example, in some aspects, the RAM payload may include an identifier associated with the UE 120, uplink control information, a media access control (MAC) layer control element (e.g., a power headroom report, a buffer status report, a beam failure report, a channel status report, etc.), user plane data, control plane data, etc. In addition, in some aspects, the msgA preamble and the msgA payload may be time division multiplexed (TDM) with each other, whereby the msgA preamble and the msgA payload may be transmitted in separate symbols based at least in part on the time division multiplexing configuration.

[0071] As indicated by reference numeral 425, the base station 110 may receive the RAM preamble transmitted by the UE 120. If the base station 110 successfully receives and decodes the RAM preamble, the base station 110 may then receive and decode the RAM payload. As indicated by reference numeral 430, the base station 110 may transmit a random access response (RAR) message. As shown, as part of the second step of the two-step RACH procedure, the base station 110 may transmit the RAR message. The RAR message is sometimes referred to as message B, msgB, response message, second message, etc. in the two-step RACH procedure.

[0072] The RAR message may include some or all of the contents of message 2 (msg2) and message 4 (msg4) of the four-step RACH procedure. For example, the RAR message may include a detected RACH preamble identifier, a detected UE identifier, a timing advance value, contention resolution information, and the like. In some aspects, the RAR message may include a first part (e.g., to include some or all of the contents of msg2 of the four-step RACH procedure) transmitted via a physical downlink control channel (PDCCH) and a second part (e.g., to include some or all of the contents of msg4 of the four-step RACH procedure) transmitted via a physical downlink shared channel (PDSCH). In some aspects, based on whether the UE 120 successfully receives and decodes the RAR message, the UE 120 may transmit a hybrid automatic repeat request (HARQ) feedback (e.g., an acknowledgment (ACK) indicating that the RAR message was successfully received and decoded, or a negative acknowledgment (NACK) indicating that the RAR message was not successfully received and decoded) to the base station 110 via a physical uplink control channel (PUCCH).

[0073] Existing NR specifications have been developed to support both periodic and on-demand broadcasting of SI. In existing specifications, UE 120 may request on-demand SIBs using msg 1 or msg 3 of the four-step RACH. With the introduction of new use cases and UE capabilities, not all SIBs may be useful to UE 120. For example, BS 110 may provide network services to high-end UE 120 (which may be referred to as legacy UE or advanced UE 120), NR light UE (which may be referred to as low-end UE), etc. The information contained in the SIB for high-end UE may not be relevant to NR light UE.

[0074] A "high-end UE" may refer to a UE associated with a receive bandwidth capability above a certain threshold (e.g., a bandwidth greater than or equal to 100 megahertz (MHz)) in receiving downlink signals / channels. In contrast, an "NR light UE" may refer to a UE with a bandwidth capability below a certain threshold (e.g., a bandwidth below 10 MHz, below 5 MHz, etc.) in receiving downlink signals / channels. NR light UEs may include wearable devices, Internet of Things (IoT) devices, sensors, cameras, etc. that are associated with limited bandwidth, power capability, transmission range, etc.

[0075] Various aspects of the technology and apparatus described herein may include providing a dedicated SIB, which includes information related to the UE category (e.g., high-end, NR light, etc.) pointed to by the dedicated SIB. In some aspects, the SI previously available through the regular (periodic) broadcast can be made available as on-demand SI when requested. In some aspects, the BS may indicate a dedicated on-demand SIB using msg2 of four-step RACH, msg 4 of four-step RACH, MSI, msg B of two-step RACH, etc. These technologies may contribute to reducing the signaling overhead of regular broadcasts. In some aspects, the UE may be able to use msg 1 of four-step RACH, ACK for msg4 of four-step RACH, msg A of two-step RACH, ACK of msg B of two-step RACH, media access control (MAC) control element (CE), uplink control information (UCI), etc. to request on-demand SIB. Aspects such as these may contribute to reducing the monitoring opportunity of PDCCH, improving the coexistence of UEs with different capabilities, etc.

[0076] As indicated above, Figure 4 are provided as examples. Other examples may differ from those described herein. Figure 4 Examples described.

[0077] The NR system may include two types of RACH: contention-based random access (CBRA) and contention-free random access (CFRA). In the CBRA procedure, the UE 120 is configured with time domain resources, frequency domain resources, and a sequence pool for CBRA. In the CBRA procedure, the UE 120 performs a RACH procedure by selecting a sequence from the sequence pool and transmitting the selected sequence in the time domain resources and the frequency domain resources (e.g., on one or more beams). The sequence pool for CBRA is shared with other UEs 120, and as a result, RACH conflicts between multiple UEs 120 are possible. Additionally, many UEs 120 may use CBRA for RACH at the same time or almost at the same time. Therefore, the waiting time associated with CBRA may be higher than the waiting time associated with CFRA. The high waiting time of CBRA may not meet the requirements of some use cases, scenarios, etc.

[0078] In the CFRA procedure, UE 120 is configured with time domain resources, frequency domain resources, and a dedicated preamble sequence that varies from UE to UE for CFRA. The dedicated preamble can be configured using RRC signaling, layer 1 signaling (downlink control information (DCI) on PDCCH), etc. In the CFRA procedure, UE 120 performs a RACH procedure by transmitting the sequence in time domain resources and frequency domain resources (e.g., on one or more beams). In order to initiate the CFRA procedure, the UE should be in connected mode before the RACH process. Several procedures can support CFRA, such as, for example, switching, PDCCH instructions, on-demand system information requests, beam failure recovery, synchronization reconfiguration, establishing time alignment during secondary cell addition, etc. Due to the design of the dedicated preamble sequence and procedure, CFRA may have a lower latency than CBRA and avoid RACH conflicts between UEs.

[0079] CFRA can be used in situations where RACH is more urgent than other situations. For example, because high-speed UEs move quickly between cells, high-speed UEs can benefit from prioritized handover procedures to avoid connection interruptions. In contrast, low-speed and / or static UEs may be able to tolerate longer waiting times during handover. Typically, the base station 110 cannot predict the priority that should be given to the RACH procedure of a given UE 120, and it is up to the UE 120 to indicate the priority of the RACH.

[0080] New technologies in NR development can enable precise positioning information associated with UEs. These can include high bandwidth, massive MIMO, etc. Performance targets for NR positioning radio layer solutions include: for 80% of UEs in indoor deployment scenarios, the horizontal positioning error is less than 3 meters and the vertical positioning error is less than 3 meters; and for 80% of UEs in outdoor deployment scenarios, the horizontal positioning error is less than 10 meters and the vertical positioning error is less than 3 meters.

[0081] Various aspects of the techniques and apparatus described herein can facilitate the use of positioning state information (PSI) associated with UE 120 to configure a prioritized RACH procedure. In this way, the base station can use PSI to optimize the system performance of RACH, which can allow lower latency, higher throughput, and increased resource savings. In some aspects, the UE can obtain positioning measurements. The UE and / or base station can use these positioning measurements to determine the PSI. The UE can select a RACH procedure based at least in part on the PSI and can indicate the RACH procedure to the base station. The selected RACH procedure can include a two-step CBRA procedure, a four-step CBRA procedure, a two-step CFRA procedure, or a four-step CFRA procedure.

[0082] In some aspects, the UE may provide a PSI report to the base station. In this way, for example, the base station may configure RACH procedures to support prioritized handovers for high-speed UEs. Handovers may be configured by allocating dedicated RACH resources for CFRA, while shared resources may be allocated for low-speed UEs to attempt CBRA. In this way, waiting time for UEs that require more urgent RACH procedures may be reduced, while dedicated RACH resources may be saved by configuring shared resources for UEs that require less urgent RACH procedures.

[0083] Figure 5 5 is a diagram illustrating an example 500 of a positioning-assisted NR RACH procedure according to the present disclosure. As shown, UE 120 and base station 110 may communicate with each other.

[0084] As indicated by reference numeral 505, a base station 110 may transmit, and a UE 120 may receive, assistance information. The assistance information may include any number of different types of information that may be used by a UE 120 in obtaining positioning measurements. In some aspects, the assistance information may be transmitted to a UE 120 in response to receiving a request for positioning services from the UE 120. In some aspects, another base station 110 may transmit the assistance information to the UE 120.

[0085] As indicated by reference numeral 510, UE 120 may determine the PSI by obtaining one or more positioning measurements associated with UE 120. In some aspects, the positioning measurements may include one or more radio access technology (RAT)-related measurements. The RAT-related measurements may include one or more positioning measurements corresponding to a serving cell associated with base station 110, one or more positioning measurements associated with one or more neighboring cells, and the like. In certain aspects, the RAT-related measurements may be obtained based at least in part on the assistance information.

[0086] In some aspects, the positioning measurements may include one or more RAT-independent measurements. In some aspects, the UE 120 may include one or more sensors that may obtain positioning measurements associated with the UE 120 independently of a cellular cell. In some aspects, the one or more sensors may correspond to a navigation system such as a global positioning system (GPS), etc.

[0087] As indicated by reference numeral 515, UE 120 may transmit and base station 110 may receive at least a portion of PSI. In some aspects, PSI may include the one or more positioning measurements. In some aspects, the positioning measurements may be reported as one or more vectors. In some aspects, a vector may include a set of one or more measurements associated with a specific time. In some aspects, PSI may include: timing measurements, such as reference signal time difference (RSTD), time difference between reception and transmission of a signal (Rx-Tx), time of arrival (TOA), etc.; energy or power measurements, such as reference signal received power (RSRP), etc.; angle measurements, such as angle of arrival (AoA), angle of departure (AoD), etc.; quality metrics; speed and / or trajectory measurements; reference transmit receive point (TRP); multipath information; line of sight (LOS) or non-line of sight (NLOS) factors; signal to interference and noise ratio (SINR); timestamp; and the like.

[0088] As indicated by reference numeral 520, the UE 120 may select a RACH procedure. In some aspects, the UE 120 may select a RACH procedure based at least in part on the PSI. In some aspects, the selected RACH procedure may be selected based at least in part on UE capabilities, quality of service requirements, etc. In some aspects, the selected RACH category may include CFRA or CBRA.

[0089] According to various aspects, base station 110 may determine a location of UE 120 relative to one or more cells based at least in part on the PSI. The one or more cells may include a cell associated with the base station, a neighboring cell, etc. Base station 120 may further determine that the location of UE 120 indicates that UE 120 is at or near a cell edge. In some aspects, UE 120 may determine the location of UE 120. In some aspects, base station 110 may transmit an indication of the location of UE 120 to UE 120. In some aspects, UE 120 may select a CFRA procedure and / or a two-step RACH procedure based at least in part on determining that the location of UE 120 indicates that UE 120 is at or near a cell edge.

[0090] In some aspects, the base station 110 may determine the speed of the UE 120 based at least in part on the PSI. In some aspects, the speed of the UE 120 may be relative to one or more cells. The one or more cells may include cells associated with the base station, neighboring cells, etc. In some aspects, the speed of the UE 120 may be independent of any cell. The base station 110 may determine that the speed of the UE 120 meets the speed threshold, and may select the CFRA procedure and / or the two-step RACH procedure based at least in part on determining that the speed of the UE 120 meets the speed threshold. In some aspects, the UE 120 may determine the speed of the UE 120. In some aspects, the UE 120 may determine the speed of the UE 120 by receiving an indication of the speed from the base station 110. In some aspects, the UE 120 may determine that the speed of the UE 120 meets the speed threshold, and may select the CFRA procedure and / or the two-step RACH procedure based at least in part on determining that the speed of the UE 120 meets the speed threshold.

[0091] In some aspects, the selected RACH procedure may be selected based at least in part on a priority level of the selected RACH procedure. The priority level of the selected RACH procedure may include a first priority level or a second priority level that is lower than the first priority level. In some aspects, the UE 120 may select the first priority level based at least in part on determining that a location of the UE 120 indicates that the UE 120 is at or near a cell edge. In some aspects, the UE 120 may select the first priority level based at least in part on determining that a speed of the UE 120 satisfies a speed threshold.

[0092] As indicated by reference numeral 525, the UE 120 may transmit and the base station 110 may receive an indication of the selected RACH procedure. The indication of the selected RACH procedure may indicate a selected RACH category, a selected RACH type, a selected RACH resource set, a selected RACH priority, etc. In some aspects, the selected RACH category may include CFRA or CBRA, and the selected RACH type may include two-step RACH or four-step RACH. In some aspects, the selected RACH priority may include a first priority or a second priority lower than the first priority.

[0093] In some aspects, UE 120 may be in an RRC connected state and the selected RACH procedure may include a CFRA procedure. In some aspects, UE 120 may be in an RRC connected state, an RRC idle state, or an RRC inactive state and the selected RACH procedure may include a CBRA procedure.

[0094] As indicated by reference numeral 530, the base station 110 may transmit and the UE 120 may receive a resource configuration for the selected RACH procedure. In some aspects, the resource configuration may be carried in a dedicated RRC message. In some aspects, the RRC message may be addressed to a cell radio network temporary identifier (C-RNTI) of the UE 120. In some aspects, a system information block (SIB) may be used to indicate the resource configuration.

[0095] In some aspects, the resource configuration may include message 1 resources corresponding to a four-step CFRA or CBRA procedure, message A resources corresponding to a two-step CFRA or CBRA procedure, and the like. In some aspects, a priority level may be associated with a CBRA procedure associated with a UE 120. The priority level may be higher than a priority level of a CBRA procedure associated with another UE 120. In some aspects, based on the priority level, the resource configuration may include multiple resource sets. Each resource set in the multiple resource sets may correspond to a corresponding coverage extension level. In some aspects, each set in the multiple resource sets may include a dedicated preamble, a dedicated RACH opportunity, and the like.

[0096] In some aspects, the resource configuration may indicate one or more repetitions of an uplink message associated with the selected RACH procedure, one or more repetitions of a downlink message associated with the selected RACH procedure, frequency hopping for uplink messages associated with the selected RACH procedure, frequency hopping for downlink messages associated with the selected RACH procedure, etc. In some aspects, the uplink message may include message 1 of a four-step RACH procedure, message 3 of a four-step RACH procedure, a hybrid automatic repeat request acknowledgement (HARQ-ACK) associated with message 4 of a four-step RACH procedure, message A of a two-step RACH procedure, HARQ-ACK associated with message B of a two-step RACH procedure, etc. In some aspects, the downlink message may include message 2 of a four-step RACH procedure, message 4 of a four-step RACH procedure, message B of a two-step RACH procedure, etc.

[0097] In some aspects, the resource configuration may be based at least in part on a coverage extension level. The coverage extension level may include a normal coverage extension level, an extended coverage extension level, and the like. In some aspects, the base station 110 may select the coverage extension level based at least in part on the PSI. In some aspects, the base station 110 may select the extended coverage extension level based at least in part on determining that the location of the UE 120 relative to the cell satisfies a range threshold. In some aspects, the UE 120 may select the coverage extension level based at least in part on the PSI. In some aspects, the UE 120 may select the extended coverage extension level based at least in part on determining that the location of the UE 120 relative to the cell satisfies a range threshold.

[0098] In some aspects, the selected RACH procedure may include a four-step RACH procedure having a first priority level that is higher than a second priority level. The UE 120 may transmit, and the base station 110 may receive, an indication of the first priority level in message 3. The selected RACH procedure may be prioritized based at least in part on the indication of the first priority level. In some aspects, the UE 120 may transmit the indication of the first priority level based at least in part on a determination that a location of the UE 120 relative to the cell satisfies a range threshold. In some aspects, the UE 120 may transmit the indication of the first priority level based at least in part on a determination that a speed of the UE 120 satisfies a speed threshold.

[0099] In some aspects, the selected RACH procedure may include a two-step RACH procedure having a first priority level that is higher than the second priority level. The UE 120 may transmit and the base station 110 may receive an indication of the first priority level in message A. In some aspects, the selected RACH procedure may be prioritized based at least in part on the indication of the first priority level. In some aspects, the selected RACH procedure may include a two-step RACH procedure having a first priority level that is higher than the second priority level. In some aspects, the UE 120 may transmit the indication of the first priority level in message A based at least in part on determining that the location of the UE 120 relative to the cell satisfies a range threshold. In some aspects, the UE 120 may transmit the indication of the first priority level in message A based at least in part on determining that the speed of the UE 120 satisfies a speed threshold.

[0100] In some aspects, the UE 120 may perform one or more RACH procedure attempts corresponding to the selected RACH procedure. The UE 120 may maintain a counter corresponding to the number of the one or more RACH procedure attempts. In some aspects, the UE 120 may perform preamble retransmissions, power ramp operations, etc. based at least in part on the counter. In some aspects, the one or more RACH procedure attempts corresponding to the selected RACH procedure may include no more than a maximum RACH procedure attempt number. In some aspects, a configuration of a maximum RACH procedure attempt number may be received from the base station 110.

[0101] In some aspects, the UE 120 may determine that a maximum number of RACH procedure attempts have been performed without successfully completing the selected RACH procedure. As indicated above, the selected RACH procedure may be associated with a first RACH category and a first RACH type. The UE 120 may perform an additional RACH procedure based on determining that a maximum number of RACH procedure attempts have been performed without successfully completing the selected RACH procedure. In some aspects, the UE 120 may select a higher coverage extension level based on determining that a maximum number of RACH procedure attempts have been performed without successfully completing the selected RACH procedure.

[0102] In some aspects, the additional RACH procedures may be associated with a second RACH category, a second RACH type, etc. In some aspects, the additional RACH procedures may include prioritized CBRA procedures, CFRA procedures, two-step RACH procedures, four-step RACH procedures, etc.

[0103] In some aspects, the UE 120 may select a first RACH preamble for use with one or more RACH procedure attempts according to the selected RACH procedure and / or may use an initial transmission power for the one or more RACH procedure attempts. The UE 120 may select a second RACH preamble for use with an additional RACH procedure, and for the additional RACH procedure, may use an initial transmission power, additional transmission power based at least in part on a power ramp operation, and so on.

[0104] In some aspects, the maximum number of RACH procedure attempts may be based at least in part on capabilities of the UE, coverage corresponding to a cell associated with the base station, quality of service requirements, and the like. In some aspects, the maximum number of RACH procedure attempts may be based at least in part on at least a portion of a PSI associated with the UE 120. In some aspects, the maximum number of RACH procedure attempts may be based at least in part on a location of the UE 120 relative to one or more cells, a speed of the UE 120, and the like. In some aspects, the maximum number of RACH procedure attempts may include a first value based at least in part on at least one of a first location of the UE 120 relative to the one or more cells, a first speed of the UE 120 relative to the one or more cells, and the like. In some aspects, the maximum number of RACH procedure attempts may include a second value based at least in part on at least one of a second location of the UE 120 relative to the one or more cells, a second speed of the UE 120 relative to the one or more cells, and the like. The first value may be higher than the second value based at least in part on a first location of UE 120 relative to the one or more cells indicating that UE 120 is at or near an edge of a cell, a first speed of UE 120 relative to the one or more cells is greater than a second speed of UE 120 relative to the one or more cells, etc. In some aspects, the one or more cells may include cells associated with a base station, neighboring cells, etc.

[0105] In some aspects, the resource configuration may be based at least in part on a first priority level corresponding to the UE 120 relative to a second priority level corresponding to the additional UE 120. The first priority level and the second priority level may be configured using a power ramp factor associated with a selected RACH procedure, a scaling factor associated with a selected RACH procedure, and the like. In some aspects, the power ramp factor may include a first value corresponding to the UE 120, the first value based at least in part on a location of the UE 120 relative to one or more cells, a speed of the UE 120 relative to the one or more cells, and the like. In some aspects, the power ramp factor may include a second value corresponding to the additional UE 120, the second value based at least in part on a location of the additional UE 120 relative to the one or more cells, a speed of the additional UE 120 relative to the one or more cells, and the like. In some aspects, the first value may be higher than the second value based at least in part on a location of the UE 120 relative to the one or more cells indicating that the UE 120 is closer to a cell edge than the additional UE 120, a speed of the UE 120 relative to the one or more cells is greater than a speed of the additional UE 120 relative to the one or more cells, and the like.

[0106] In some aspects, the scaling factor may include a first value corresponding to UE 120 based at least in part on a location of UE 120 relative to one or more cells, a speed of UE 120 relative to the one or more cells, etc. In some aspects, the scaling factor may include a second value corresponding to the additional UE 120 based at least in part on a location of the additional UE 120 relative to the one or more cells, a speed of the additional UE 120 relative to the one or more cells, etc. In some aspects, the first value may be higher than the second value based at least in part on a location of UE 120 relative to the one or more cells indicating that the UE 120 is closer to a cell edge than the additional UE, a speed of the UE 120 relative to the one or more cells is greater than a speed of the additional UE 120 relative to the one or more cells, etc.

[0107] Various aspects of the techniques described above may facilitate configuring prioritized RACH procedures using PSI associated with UE 120. In this manner, base station 110 may use PSI to optimize system performance of RACH, which may allow for lower latency, higher throughput, and increased resource savings.

[0108] As indicated above, Figure 5 are provided as examples. Other examples may differ from those described herein. Figure 5 Examples described.

[0109] Figure 6 6 is a diagram illustrating an example 600 of a positioning-assisted NR RACH procedure according to the present disclosure. As shown, UE 120 and base station 110 may communicate with each other.

[0110] As indicated by reference numeral 605, the UE 120 may obtain one or more positioning measurements. In some aspects, the positioning measurements may include one or more radio RAT-related measurements, one or more RAT-independent measurements, and the like. As indicated by reference numeral 610, the UE 120 may determine a PSI associated with the UE 120. In some aspects, the UE 120 may determine the PSI based at least in part on the one or more positioning measurements. In some aspects, the PSI may include timing measurements, such as RSTD, Rx-Tx, TOA, and the like; energy or power measurements, such as RSRP, and the like; angle measurements, such as AoA, AoD, and the like; quality metrics; speed and / or trajectory measurements; reference TRP; multipath information; LOS or NLOS factors; SINR; timestamps, and the like.

[0111] As indicated by reference numeral 615, UE 120 may select a RACH procedure. UE 120 may select a RACH procedure based at least in part on PSI, UE capabilities, quality of service requirements, etc. The selection of a RACH procedure may be combined with the above Figure 5 All aspects described are similar or identical.

[0112] As indicated by reference numeral 620, UE 120 may transmit and base station 110 may receive an indication of a selected RACH procedure. In some aspects, the indication of the selected RACH procedure may indicate a selected RACH category, a selected RACH type, a selected RACH resource set, a selected RACH priority, etc. In some aspects, the indication of the selected RACH procedure may be combined with the above Figure 5 The indication of the selected RACH procedure is similar or identical to that described.

[0113] As indicated by reference numeral 625, the base station 110 may transmit and the UE 120 may receive an indication of an uplink resource set associated with the PUSCH or PUCCH for transmitting the PSI report. As indicated by reference numeral 630, the UE 120 may transmit and the base station 110 may receive the PSI report using the uplink resource set. In some aspects, the PSI report may include one or more PSI elements in a set of PSI elements. In some aspects, as shown, the UE 120 may also transmit and the base station 110 may also receive an indication of the capabilities of the UE 120 associated with the selected RACH procedure.

[0114] In some aspects, UE 120 may transmit and base station 110 may receive an indication of a specific payload size for transmitting a subset of PSI elements in a set of PSI elements. The subset of PSI elements may include less than all elements of the set of PSI elements. In some aspects, the subset of PSI elements may include one or more RAT-related measurements. The RAT-related measurements may include one or more positioning measurements corresponding to a serving cell associated with base station 110, one or more positioning measurements associated with one or more neighboring cells, and the like. In some aspects, the subset of PSI elements may include one or more RAT-independent measurements.

[0115] UE 120 may determine that the PSI report has a payload size that is greater than the size of a PUSCH allocated for transmitting the PSI report, and UE 120 may transmit the initial portion of the PSI report using the PUSCH. In some aspects, UE 120 may transmit the initial portion of the PSI report according to a higher priority level than a priority level associated with subsequent transmissions of additional portions of the PSI report.

[0116] In some aspects, the PSI report may include measurements associated with a selected set of cells, and an initial portion of the PSI report may include measurements associated with a subset of the selected set of cells. In some aspects, the subset of the selected set of cells may include fewer cells than all of the selected set of cells. In some aspects, the subset of the selected set of cells may include a serving cell associated with the base station 110, a neighboring cell, etc.

[0117] In some aspects, base station 110 may configure resources based at least in part on the initial portion of the PSI report. In some aspects, UE 120 may transmit and base station 110 may receive an indication that the PSI report includes an additional portion of the PSI report. In this manner, base station 110 may anticipate future transmissions that include the additional portion of the PSI report, configure additional resources for transmission of the additional portion of the PSI report, and so on.

[0118] As indicated by reference numeral 635, the base station 110 may transmit, and the UE 120 may receive, a resource configuration for the selected RACH procedure. In some aspects, the resource configuration may be based at least in part on at least a portion of a PSI report, UE capabilities, or the like.

[0119] In some aspects described above, the UE 120 may provide a PSI report to the base station 110. In this manner, for example, the base station 110 may configure a RACH procedure to support prioritized handovers for high-speed UEs 120. Handovers may be configured by allocating dedicated RACH resources for CFRA, while shared resources may be allocated for low-speed UEs 120 to attempt CBRA. In this manner, waiting time for UEs 120 that require more urgent RACH procedures may be reduced, while dedicated RACH resources may be conserved by configuring shared resources for UEs 120 that require less urgent RACH procedures.

[0120] As indicated above, Figure 6 are provided as examples. Other examples may differ from those described herein. Figure 6 Examples described.

[0121] Figure 7 7 is a diagram illustrating an example process 700 performed, for example, by a UE in accordance with the present disclosure. Example process 700 is an example in which a UE (e.g., UE 120, etc.) performs operations associated with a positioning-assisted NR RACH procedure.

[0122] like Figure 7As shown, in some aspects, process 700 may include: transmitting to a base station an indication of a selected RACH procedure selected based at least in part on a PSI associated with the UE, wherein the PSI is based at least in part on one or more positioning measurements obtained by the UE (block 710). For example, the UE (e.g., using transmit processor 264, controller / processor 280, memory 282, etc.) may transmit to the base station an indication of a selected RACH procedure selected based at least in part on a PSI associated with the UE, as described above. In some aspects, the PSI is based at least in part on one or more positioning measurements obtained by the UE.

[0123] like Figure 7 As further shown in FIG. 7 , in some aspects, process 700 may include receiving a resource configuration for a selected RACH procedure from a base station (block 720). For example, as described above, the UE (e.g., using receive processor 258, controller / processor 280, memory 282, etc.) may receive a resource configuration for a selected RACH procedure from a base station.

[0124] Process 700 may include additional aspects, such as any single aspect or any combination of aspects described below and / or in conjunction with one or more other processes described elsewhere herein.

[0125] In a first aspect, process 700 includes obtaining the one or more positioning measurements.

[0126] In a second aspect, either alone or in combination with the first aspect, process 700 includes: receiving assistance information from a base station; obtaining the one or more positioning measurements based at least in part on the assistance information; transmitting at least a portion of the PSI to the base station; and selecting a selected RACH procedure based at least in part on the PSI.

[0127] In a third aspect, either alone or in combination with one or more of the first and second aspects, process 700 includes obtaining the one or more positioning measurements; determining a PSI based at least in part on the one or more positioning measurements; and selecting a selected RACH procedure based at least in part on the PSI.

[0128] In a fourth aspect, alone or in combination with one or more of the first to third aspects, the selected RACH procedure is selected based at least in part on UE capabilities, quality of service requirements, or a combination thereof.

[0129] In a fifth aspect, alone or in combination with one or more of the first to fourth aspects, the indication of the selected RACH procedure indicates at least one of: a selected RACH category, a selected RACH type, a selected RACH resource set, a selected RACH priority, or a combination thereof.

[0130] In a sixth aspect, alone or in combination with the fifth aspect, the selected RACH category comprises CFRA or CBRA.

[0131] In a seventh aspect, alone or in combination with one or more of the first to sixth aspects, the selected RACH type comprises a two-step RACH or a four-step RACH.

[0132] In an eighth aspect, alone or in combination with one or more of the fifth to seventh aspects, the selected RACH priority includes a first priority or a second priority lower than the first priority.

[0133] In a ninth aspect, alone or in combination with one or more of the first to eighth aspects, the UE is in an RRC connected state, and the selected RACH procedure includes a CFRA procedure.

[0134] In a tenth aspect, either alone or in combination with one or more of the first to ninth aspects, process 700 includes transmitting a PSI report to a base station, the PSI report including one or more PSI elements in a PSI element set and an indication of UE capabilities associated with a selected RACH procedure.

[0135] In an eleventh aspect, alone or in combination with the tenth aspect, the resource configuration is based at least in part on at least a portion of a PSI report and UE capabilities.

[0136] In a twelfth aspect, either alone or in combination with one or more of the tenth to eleventh aspects, process 700 comprises receiving from a base station an indication of an uplink resource set associated with a physical uplink shared channel or a physical uplink control, wherein transmitting a PSI report comprises transmitting the PSI report using the uplink resource set.

[0137] In a thirteenth aspect, either alone or in combination with one or more of the tenth to twelfth aspects, process 700 includes transmitting to a base station an indication of a specific payload size for transmitting a subset of PSI elements of a set of PSI elements, wherein the subset of PSI elements includes fewer PSI elements than all PSI elements of the set of PSI elements.

[0138] In the fourteenth aspect, either alone or in combination with the thirteenth aspect, the PSI element subset includes one or more RAT-related measurements, which include at least one of: one or more positioning measurements corresponding to a serving cell associated with a base station, one or more positioning measurements associated with one or more neighboring cells, or a combination thereof.

[0139] In a fifteenth aspect, alone or in combination with one or more of the thirteenth to fourteenth aspects, the PSI element subset includes one or more RAT-independent measurements obtained using one or more sensors.

[0140] In a sixteenth aspect, either alone or in combination with one or more of the tenth to fifteenth aspects, process 700 includes determining that a PSI report has a payload size that is greater than a size of a PUSCH allocated for transmitting the PSI report, wherein transmitting the PSI report includes transmitting an initial portion of the PSI report using the PUSCH according to a priority level that is higher than a priority level associated with an additional portion of a subsequently transmitted PSI report.

[0141] In a seventeenth aspect, either alone or in combination with the sixteenth aspect, the PSI report includes measurements associated with a selected set of cells, and an initial portion of the PSI report includes measurements associated with a subset of the selected set of cells, wherein the subset of the selected set of cells includes fewer cells than all of the cells in the selected set of cells.

[0142] In an eighteenth aspect, alone or in combination with the seventeenth aspect, the subset of the selected set of cells includes a serving cell and a neighboring cell associated with the base station.

[0143] In a nineteenth aspect, alone or in combination with one or more of the sixteenth to eighteenth aspects, the resource allocation is based at least in part on an initial portion of a PSI report.

[0144] In a twentieth aspect, alone or in combination with one or more of the sixteenth to nineteenth aspects, process 700 includes transmitting to a base station an indication that the PSI report includes an additional portion of the PSI report.

[0145] In a twenty-first aspect, alone or in combination with one or more of the first to twentieth aspects, the resource configuration is carried in a dedicated RRC message.

[0146] In a twenty-second aspect, alone or in combination with the twenty-first aspect, the RRC message is addressed to the C-RNTI of the UE.

[0147] In the twenty-third aspect, either alone or in combination with one or more of the first to twenty-second aspects, the resource configuration indicates at least one of: one or more repetitions of an uplink message associated with a selected RACH procedure, one or more repetitions of a downlink message associated with a selected RACH procedure, frequency hopping for uplink messages associated with a selected RACH procedure, frequency hopping for downlink messages associated with a selected RACH procedure, or a combination thereof.

[0148] In the twenty-fourth aspect, alone or in combination with the twenty-third aspect, the uplink message includes at least one of the following: message 1 of the four-step RACH procedure, message 3 of the four-step RACH procedure, HARQ-ACK associated with message 4 of the four-step RACH procedure, message A of the two-step RACH procedure, HARQ-ACK associated with message B of the two-step RACH procedure, or a combination thereof.

[0149] In the twenty-fifth aspect, either alone or in combination with one or more of the twenty-third to twenty-fourth aspects, the downlink message comprises at least one of: message 2 of the four-step RACH procedure, message 4 of the four-step RACH procedure, message B of the two-step RACH procedure, or a combination thereof.

[0150] In a twenty-sixth aspect, either alone or in combination with one or more of the first to twenty-fifth aspects, process 700 includes performing one or more RACH procedure attempts corresponding to a selected RACH procedure; and maintaining a counter corresponding to the number of the one or more RACH procedure attempts.

[0151] In a twenty-seventh aspect, alone or in combination with the twenty-sixth aspect, process 700 comprises performing at least one of: a preamble retransmission, a power ramp operation, or a combination thereof based at least in part on a counter.

[0152] In the twenty-eighth aspect, either alone or in combination with one or more of aspects twenty-six to twenty-seven, the one or more RACH procedure attempts corresponding to the selected RACH procedure include no more than a maximum number of RACH procedure attempts, wherein the configuration of the maximum number of RACH procedure attempts is received from a base station.

[0153] In the twenty-ninth aspect, alone or in combination with the twenty-eighth aspect, process 700 includes: determining that a maximum number of RACH procedure attempts have been performed without successfully completing a selected RACH procedure, wherein the selected RACH procedure is associated with a first RACH category and a first RACH type; and based on determining that the maximum number of RACH procedure attempts have been performed without successfully completing the selected RACH procedure, performing at least one of the following: an additional RACH procedure, wherein the additional RACH procedure is associated with at least one of a second RACH category, a second RACH type, or a combination thereof; a higher coverage extension level, or a combination thereof.

[0154] In the thirtieth aspect, either alone or in combination with the twenty-ninth aspect, the additional RACH procedure comprises at least one of: a prioritized contention-based random access procedure, wherein the selected RACH procedure comprises a contention-free random access procedure, a two-step RACH procedure, a four-step RACH procedure or a combination thereof.

[0155] In the thirty-first aspect, alone or in combination with one or more of aspects twenty-ninth to thirtieth, process 700 includes: selecting a first RACH preamble for use with the one or more RACH procedure attempts; for the one or more RACH procedure attempts, using an initial transmission power; selecting a second RACH preamble for use with an additional RACH procedure; and for the additional RACH procedure, using at least one of: the initial transmission power, an additional transmission power based at least in part on a power ramp operation, or a combination thereof.

[0156] In aspect 32, either alone or in combination with one or more of aspects 28 to 31, the maximum number of RACH procedure attempts is based at least in part on at least one of: UE capabilities, coverage corresponding to a cell associated with a base station, quality of service requirements, or a combination thereof.

[0157] In a thirty-third aspect, alone or in combination with one or more of aspects twenty-eight to thirty-second, a maximum number of RACH procedure attempts is based at least in part on at least a portion of a PSI associated with the UE.

[0158] In aspect thirty-four, either alone or in combination with one or more of aspects twenty-eight to thirty-three, the maximum number of RACH procedure attempts is based at least in part on at least one of: the location of the UE relative to one or more cells, the speed of the UE relative to one or more cells, or a combination thereof.

[0159] In an aspect thirty-fifth, either alone or in combination with one or more of aspects twenty-eight to thirty-four, the maximum number of RACH procedure attempts comprises: a first value based at least in part on at least one of: a first position of the UE relative to one or more cells, a first speed of the UE relative to the one or more cells, or a combination of both; or a second value based at least in part on at least one of: a second position of the UE relative to the one or more cells, a second speed of the UE relative to the one or more cells, or a combination of both, wherein the first value is higher than the second value, based at least in part on: the first position of the UE relative to the one or more cells indicating that the UE is at or near an edge of the cell, the first speed of the UE relative to the one or more cells is greater than the second speed of the UE relative to the one or more cells, or a combination thereof.

[0160] In the thirty-sixth aspect, alone or in combination with the thirty-fifth aspect, the one or more cellular cells include at least one of the following: a cellular cell associated with a base station, a neighboring cellular cell, or a combination thereof.

[0161] In an aspect thirty-seven, either alone or in combination with one or more of aspects one to thirty-six, the resource configuration is based at least in part on a first priority level corresponding to the UE relative to a second priority level corresponding to an additional UE, wherein the first priority level and the second priority level are configured using at least one of: a power ramp factor associated with a selected RACH procedure, a scaling factor associated with a selected RACH procedure, or a combination thereof.

[0162] In the thirty-eighth aspect, alone or in combination with the thirty-seventh aspect, the power ramp factor includes: a first value corresponding to the UE based at least in part on at least one of: the position of the UE relative to one or more cellular cells, the speed of the UE relative to the one or more cellular cells, or a combination of the two; and a second value corresponding to the additional UE based at least in part on at least one of: the position of the additional UE relative to the one or more cellular cells, the speed of the additional UE relative to the one or more cellular cells, or a combination of the two, wherein the first value is higher than the second value, which is at least in part based on: the position of the UE relative to the one or more cellular cells indicates that the UE is closer to the edge of the cellular cell than the additional UE, the speed of the UE relative to the one or more cellular cells is greater than the speed of the additional UE relative to the one or more cellular cells, or a combination thereof.

[0163] In aspect thirty-ninth, alone or in combination with one or more of aspects thirty-seven to thirty-eight, the scaling factor comprises: a first value corresponding to the UE based at least in part on at least one of: the position of the UE relative to one or more cells, the speed of the UE relative to the one or more cells, or a combination of the two; and a second value corresponding to the additional UE based at least in part on at least one of: the position of the additional UE relative to the one or more cells, the speed of the additional UE relative to the one or more cells, or a combination of the two, wherein the first value is higher than the second value, based at least in part on: the position of the UE relative to the one or more cells indicates that the UE is closer to the cell edge than the additional UE, the speed of the UE relative to the one or more cells is greater than the speed of the additional UE relative to the one or more cells, or a combination thereof.

[0164] In a 40th aspect, alone or in combination with one or more of the first to thirty-ninth aspects, the selected RACH procedure comprises a CBRA procedure, and the CBRA procedure comprises a four-step CBRA procedure or a two-step CBRA procedure.

[0165] In the forty-first aspect, alone or in combination with the fortieth aspect, the resource configuration includes at least one of the following: a message 1 resource corresponding to a four-step CBRA procedure, or a message A resource corresponding to a two-step CBRA procedure.

[0166] In aspect 42, alone or in combination with one or more of aspects 40 to 41, a priority level is associated with a CBRA procedure associated with a UE, the priority level being higher than the priority level of a CBRA procedure associated with another UE, and the resource configuration includes a plurality of resource sets based on the priority level, each resource set in the plurality of resource sets corresponding to a corresponding coverage extension level, each resource set in the plurality of resource sets including at least one of: a dedicated preamble, a dedicated RACH opportunity, or a combination thereof.

[0167] In a 43rd aspect, alone or in combination with one or more of the first to 42nd aspects, a SIB is used to indicate the resource configuration.

[0168] In a forty-fourth aspect, either alone or in combination with one or more of the first to forty-third aspects, the selected RACH procedure comprises a four-step RACH procedure or a two-step RACH procedure.

[0169] In the forty-fifth aspect, alone or in combination with the forty-fourth aspect, process 700 includes: determining the location of the UE relative to one or more cellular cells based at least in part on the PSI, wherein the one or more cellular cells include cellular cells associated with a base station, adjacent cellular cells, or a combination thereof; determining that the location of the UE indicates that the UE is at or near an edge of the cellular cell; and selecting a two-step RACH procedure based at least in part on determining that the location of the UE indicates that the UE is at or near an edge of the cellular cell.

[0170] In a forty-sixth aspect, either alone or in combination with one or more of aspects forty-four to forty-five, process 700 includes determining a speed of the UE relative to one or more cells based at least in part on the PSI, wherein the one or more cells include cells associated with a base station, neighboring cells, or a combination thereof; determining that the speed of the UE satisfies a speed threshold; and selecting a two-step RACH procedure based at least in part on determining that the speed of the UE satisfies the speed threshold.

[0171] In a 47th aspect, either alone or in combination with one or more of aspects 1 to 46, the resource configuration is based at least in part on a coverage extension level comprising at least one of: a normal coverage extension level, an extended coverage extension level, or a combination thereof.

[0172] In a forty-eighth aspect, alone or in combination with the forty-seventh aspect, process 700 comprises selecting a coverage extension level based at least in part on the PSI.

[0173] In aspect 49, either alone or in combination with one or more of aspects 47 to 48, process 700 includes determining a location of a UE relative to one or more cells based at least in part on a PSI, wherein the one or more cells include cells associated with a base station, neighboring cells, or a combination thereof; determining that the location of the UE satisfies a range threshold; and selecting an extended coverage extension level based at least in part on determining that the location of the UE satisfies the range threshold.

[0174] In the fiftieth aspect, either alone or in combination with one or more of the first to forty-ninth aspects, the selected RACH procedure is selected based at least in part on a priority level of the selected RACH procedure, the priority level of the selected RACH procedure comprising at least one of: a first priority level, or a second priority level that is lower than the first priority level.

[0175] In the fifty-first aspect, alone or in combination with the fiftieth aspect, process 700 includes: determining a location of the UE relative to one or more cellular cells based at least in part on the PSI, wherein the one or more cellular cells include cellular cells associated with a base station, adjacent cellular cells, or a combination thereof; determining that the location of the UE indicates that the UE is at or near an edge of the cellular cell; and selecting a first priority level based at least in part on determining that the location of the UE indicates that the UE is at or near an edge of the cellular cell.

[0176] In aspect fifty-two, alone or in combination with one or more of aspects fifty to fifty-one, process 700 includes: determining a speed of the UE relative to one or more cellular cells based at least in part on the PSI, wherein the one or more cellular cells include cellular cells associated with a base station, neighboring cellular cells, or a combination thereof; determining that the speed of the UE satisfies a speed threshold; and selecting a first priority level based at least in part on determining that the speed of the UE satisfies the speed threshold.

[0177] In a fifty-third aspect, either alone or in combination with one or more of the first to forty-fourth aspects, the selected RACH procedure comprises a four-step RACH procedure having a first priority level higher than a second priority level, and process 700 comprises transmitting an indication of the first priority level in message 3.

[0178] In a fifty-fourth aspect, alone or in combination with the fifty-third aspect, the selected RACH procedure is prioritized based at least in part on the indication of the first priority level.

[0179] In a fifty-fifth aspect, either alone or in combination with one or more of aspects one to forty-four, the selected RACH procedure comprises a four-step RACH procedure having a first priority level higher than a second priority level, and process 700 comprises: determining the location of the UE relative to one or more cells based at least in part on the PSI, the one or more cells comprising cells associated with a base station, neighboring cells, or a combination thereof, and determining that the location of the UE satisfies a range threshold; and transmitting an indication of the first priority level in message 3 based at least in part on determining that the location of the UE satisfies the range threshold.

[0180] In a fifty-sixth aspect, either alone or in combination with one or more of aspects one to forty-four, the selected RACH procedure comprises a four-step RACH procedure having a first priority level higher than a second priority level, and process 700 comprises: determining a speed of the UE relative to one or more cells based at least in part on the PSI, the one or more cells comprising cells associated with a base station, neighboring cells, or a combination thereof; determining that the speed of the UE satisfies a speed threshold; and transmitting an indication of the first priority level in message 3 based at least in part on determining that the speed of the UE satisfies the speed threshold.

[0181] In a fifty-seventh aspect, either alone or in combination with one or more of aspects one to forty-four, the selected RACH procedure comprises a two-step RACH procedure having a first priority level higher than a second priority level, and process 700 comprises transmitting an indication of the first priority level in message A.

[0182] In a fifty-eighth aspect, either alone or in combination with the fifty-seventh aspect, the selected RACH procedure is prioritized based at least in part on an indication of a first priority level. In a fifty-ninth aspect, either alone or in combination with one or more of the first to forty-fourth aspects, the selected RACH procedure comprises a two-step RACH procedure having a first priority level that is higher than a second priority level, and process 700 comprises: determining a location of the UE relative to one or more cells based at least in part on the PSI, the one or more cells comprising cells associated with a base station, neighboring cells, or a combination thereof; determining that the location of the UE satisfies a range threshold; and transmitting in message A an indication of the first priority level based at least in part on determining that the location of the UE satisfies the range threshold.

[0183] In a sixtieth aspect, either alone or in combination with one or more of aspects one to forty-fourth, the selected RACH procedure comprises a two-step RACH procedure having a first priority level higher than a second priority level, and process 700 comprises: determining a speed of the UE relative to one or more cells based at least in part on the PSI, the one or more cells comprising cells associated with a base station, neighboring cells, or a combination thereof; determining that the speed of the UE satisfies a speed threshold; and transmitting an indication of the first priority level in message A based at least in part on determining that the speed of the UE satisfies the speed threshold.

[0184] although Figure 7 An example block diagram of process 700 is shown, but in some aspects, process 700 may include Figure 7 Additional blocks, fewer blocks, different blocks, or differently arranged blocks than those depicted in the process 700. Additionally or alternatively, two or more blocks of the process 700 may be executed in parallel.

[0185] Figure 8 8 is a diagram illustrating an example process 800 performed, for example, by a base station in accordance with the present disclosure. Example process 800 is an example in which a base station (e.g., base station 110, etc.) performs operations associated with a positioning-assisted NR RACH procedure.

[0186] like Figure 8 As shown in , in some aspects, process 800 may include: receiving from a UE an indication of a selected RACH procedure based at least in part on a PSI associated with the UE, wherein the PSI is based at least in part on one or more positioning measurements obtained by the UE (block 810). For example, a base station (e.g., using receive processor 238, controller / processor 240, memory 242, etc.) may receive from a UE an indication of a selected RACH procedure based at least in part on a PSI associated with the UE, as described above. In some aspects, the PSI is based at least in part on one or more positioning measurements obtained by the UE.

[0187] like Figure 8 As further shown in FIG. 8 , in some aspects, process 800 may include transmitting a resource configuration for the selected RACH procedure to the UE (block 820). For example, the base station (e.g., using transmit processor 220, controller / processor 240, memory 242, etc.) may transmit a resource configuration for the selected RACH procedure to the UE, as described above.

[0188] Process 800 may include additional aspects, such as any single aspect or any combination of aspects described below and / or in conjunction with one or more other processes described elsewhere herein.

[0189] In a first aspect, process 800 includes transmitting assistance information to a UE and receiving at least a portion of PSI from the UE, wherein the PSI includes one or more positioning measurements based at least in part on the assistance information.

[0190] In a second aspect, alone or in combination with the first aspect, the selected RACH procedure is selected based at least in part on UE capabilities, quality of service requirements, or a combination thereof.

[0191] In a third aspect, alone or in combination with one or more of the first and second aspects, the indication of the selected RACH procedure indicates at least one of: a selected RACH category, a selected RACH type, a selected RACH resource set, a selected RACH priority, or a combination thereof.

[0192] In a fourth aspect, alone or in combination with the third aspect, the selected RACH category comprises CFRA or CBRA.

[0193] In a fifth aspect, alone or in combination with one or more of the third to fourth aspects, the selected RACH type comprises a two-step RACH or a four-step RACH.

[0194] In a sixth aspect, alone or in combination with one or more of the third to fifth aspects, the selected RACH priority includes a first priority or a second priority lower than the first priority.

[0195] In a seventh aspect, alone or in combination with one or more of the first to sixth aspects, the UE is in an RRC connected state, and the selected RACH procedure includes a CFRA procedure.

[0196] In an eighth aspect, alone or in combination with one or more of the first to seventh aspects, process 800 includes receiving a PSI report from a UE, the PSI report including one or more PSI elements in a PSI element set and an indication of UE capabilities associated with a selected RACH procedure.

[0197] In a ninth aspect, alone or in combination with the eighth aspect, the resource configuration is based at least in part on at least a portion of a PSI report and UE capabilities.

[0198] In a tenth aspect, alone or in combination with one or more of the eighth to ninth aspects, process 800 includes transmitting to a UE an indication of an uplink resource set associated with a PUSCH or a PUCCH, wherein the PSI report is transmitted using the uplink resource set.

[0199] In an eleventh aspect, either alone or in combination with one or more of aspects eight to ten, process 800 includes receiving from a UE an indication of a specific payload size for transmitting a subset of PSI elements of a set of PSI elements, wherein the subset of PSI elements includes fewer PSI elements than all PSI elements of the set of PSI elements.

[0200] In the twelfth aspect, either alone or in combination with the eleventh aspect, the PSI element subset includes one or more RAT-related measurements, which include at least one of: one or more positioning measurements corresponding to a serving cell associated with a base station, one or more positioning measurements associated with one or more neighboring cells, or a combination thereof.

[0201] In a thirteenth aspect, alone or in combination with one or more of the eleventh to twelfth aspects, the PSI element subset includes one or more RAT-independent measurements obtained using one or more sensors.

[0202] In a fourteenth aspect, either alone or in combination with one or more of the eighth to thirteenth aspects, a PSI report has a payload size that is greater than a size of a PUSCH allocated for transmitting the PSI report, and wherein receiving the PSI report comprises receiving an initial portion of the PSI report using the PUSCH according to a priority level higher than a priority level associated with subsequently receiving an additional portion of the PSI report.

[0203] In a fifteenth aspect, either alone or in combination with the fourteenth aspect, the PSI report includes measurements associated with a selected set of cells, and an initial portion of the PSI report includes measurements associated with a subset of the selected set of cells, the subset of the selected set of cells including fewer cells than all of the selected set of cells.

[0204] In a sixteenth aspect, alone or in combination with the fifteenth aspect, the subset of the selected set of cells includes a serving cell and a neighboring cell associated with the base station.

[0205] In a seventeenth aspect, alone or in combination with one or more of the fourteenth to sixteenth aspects, the resource configuration is based at least in part on an initial portion of a PSI report.

[0206] In an eighteenth aspect, alone or in combination with one or more of the fourteenth to seventeenth aspects, process 800 includes receiving an indication from the UE that the PSI report includes an additional portion of the PSI report.

[0207] In a nineteenth aspect, either alone or in combination with one or more of the first to eighteenth aspects, the resource configuration is carried in a dedicated RRC message.

[0208] In a twentieth aspect, alone or in combination with the nineteenth aspect, the RRC message is addressed to the C-RNTI of the UE.

[0209] In the twenty-first aspect, either alone or in combination with one or more of the first to twentieth aspects, the resource configuration indicates at least one of: one or more repetitions of an uplink message associated with a selected RACH procedure, one or more repetitions of a downlink message associated with a selected RACH procedure, frequency hopping for uplink messages associated with a selected RACH procedure, frequency hopping for downlink messages associated with a selected RACH procedure, or a combination thereof.

[0210] In the twenty-second aspect, alone or in combination with the twenty-first aspect, the uplink message includes at least one of the following: message 1 of the four-step RACH procedure, message 3 of the four-step RACH procedure, HARQ-ACK associated with message 4 of the four-step RACH procedure, message A of the two-step RACH procedure, HARQ-ACK associated with message B of the two-step RACH procedure, or a combination thereof.

[0211] In the twenty-third aspect, either alone or in combination with one or more of aspects twenty-first to twenty-second, the downlink message comprises at least one of: message 2 of a four-step RACH procedure, message 4 of a four-step RACH procedure, message B of a two-step RACH procedure, or a combination thereof.

[0212] In a twenty-fourth aspect, alone or in combination with one or more of the first to twenty-third aspects, process 800 includes transmitting to the UE a configuration of a maximum number of RACH procedure attempts corresponding to a selected RACH procedure.

[0213] In a twenty-fifth aspect, alone or in combination with the twenty-fourth aspect, the maximum number of RACH procedure attempts is based at least in part on at least a portion of a PSI associated with the UE.

[0214] In a twenty-sixth aspect, either alone or in combination with one or more of aspects twenty-four to twenty-fifth, the maximum number of RACH procedure attempts is based at least in part on at least one of: a location of the UE relative to one or more cells, a speed of the UE relative to one or more cells, or a combination thereof.

[0215] In a twenty-seventh aspect, either alone or in combination with one or more of aspects twenty-four to twenty-six, the maximum number of RACH procedure attempts comprises: a first value based at least in part on at least one of: a first position of the UE relative to one or more cells, a first speed of the UE relative to the one or more cells, or a combination of the two; or a second value based at least in part on at least one of: a second position of the UE relative to the one or more cells, a second speed of the UE relative to the one or more cells, or a combination of the two, wherein the first value is higher than the second value, based at least in part on: the first position of the UE relative to the one or more cells indicating that the UE is at or near an edge of the cell, the first speed of the UE relative to the one or more cells is greater than the second speed of the UE relative to the one or more cells, or a combination thereof.

[0216] In the twenty-eighth aspect, alone or in combination with the twenty-seventh aspect, the one or more cellular cells include at least one of the following: a cellular cell associated with a base station, a neighboring cellular cell, or a combination thereof.

[0217] In the twenty-ninth aspect, either alone or in combination with one or more of the first to twenty-eight aspects, the resource configuration is based at least in part on a first priority level corresponding to the UE relative to a second priority level corresponding to an additional UE, wherein the first priority level and the second priority level are configured using at least one of: a power ramp factor associated with a selected RACH procedure, a scaling factor associated with a selected RACH procedure, or a combination thereof.

[0218] In the thirtieth aspect, alone or in combination with the twenty-ninth aspect, the power ramp factor includes: a first value corresponding to the UE based at least in part on at least one of: the position of the UE relative to one or more cellular cells, the speed of the UE relative to the one or more cellular cells, or a combination of the two; and a second value corresponding to the additional UE based at least in part on at least one of: the position of the additional UE relative to the one or more cellular cells, the speed of the additional UE relative to the one or more cellular cells, or a combination of the two, wherein the first value is higher than the second value, which is at least in part based on: the position of the UE relative to the one or more cellular cells indicates that the UE is closer to the edge of the cellular cell than the additional UE, the speed of the UE relative to the one or more cellular cells is greater than the speed of the additional UE relative to the one or more cellular cells, or a combination thereof.

[0219] In the thirty-first aspect, alone or in combination with one or more of aspects twenty-ninth to thirtieth, the scaling factor includes: a first value corresponding to the UE based at least in part on at least one of: the position of the UE relative to one or more cells, the speed of the UE relative to the one or more cells, or a combination of the two; and a second value corresponding to the additional UE based at least in part on at least one of: the position of the additional UE relative to the one or more cells, the speed of the additional UE relative to the one or more cells, or a combination of the two, wherein the first value is higher than the second value, which is at least in part based on: the position of the UE relative to the one or more cells indicates that the UE is closer to the cell edge than the additional UE, the speed of the UE relative to the one or more cells is greater than the speed of the additional UE relative to the one or more cells, or a combination thereof.

[0220] In a thirty-second aspect, alone or in combination with one or more of the first to thirty-first aspects, the selected RACH procedure comprises a CBRA procedure, the CBRA procedure comprising a four-step CBRA procedure or a two-step CBRA procedure.

[0221] In a thirty-third aspect, either alone or in combination with the thirty-second aspect, the resource configuration comprises at least one of: a message 1 resource corresponding to a four-step CBRA procedure, or a message A resource corresponding to a two-step CBRA procedure.

[0222] In aspect thirty-four, either alone or in combination with one or more of aspects thirty-two to thirty-three, a priority level is associated with a CBRA procedure associated with a UE, wherein the priority level is higher than a priority level of a CBRA procedure associated with another UE, and the resource configuration comprises a plurality of resource sets based at least in part on the priority level, wherein each resource set in the plurality of resource sets corresponds to a corresponding coverage extension level, and wherein each resource set in the plurality of resource sets comprises at least one of: a dedicated preamble, a dedicated RACH opportunity, or a combination thereof.

[0223] In a thirty-fifth aspect, alone or in combination with one or more of the first to thirty-fourth aspects, a SIB is used to indicate the resource configuration.

[0224] In a thirty-sixth aspect, either alone or in combination with one or more of the first to thirty-fifth aspects, the selected RACH procedure comprises a four-step RACH procedure or a two-step RACH procedure.

[0225] In a thirty-seventh aspect, alone or in combination with the thirty-sixth aspect, the selected RACH procedure comprises a two-step RACH procedure based at least in part on the UE being at or near a cell edge.

[0226] In a thirty-eighth aspect, either alone or in combination with one or more of the thirty-sixth to thirty-seventh aspects, the selected RACH procedure comprises a two-step RACH procedure based at least in part on a speed of the UE satisfying a speed threshold.

[0227] In a thirty-ninth aspect, either alone or in combination with one or more of aspects one to thirty-eight, the resource configuration is based at least in part on a coverage extension level comprising at least one of: a normal coverage extension level, an extended coverage extension level, or a combination thereof.

[0228] In a 40th aspect, alone or in combination with the 39th aspect, the coverage extension level is based at least in part on the PSI.

[0229] In the forty-first aspect, alone or in combination with one or more of the thirty-ninth to fortieth aspects, the coverage extension level comprises an extended coverage extension level based at least in part on the UE satisfying a range threshold.

[0230] In aspect forty-two, either alone or in combination with one or more of aspects one to forty-one, the selected RACH procedure is selected based at least in part on a priority level of the selected RACH procedure, the priority level of the selected RACH procedure comprising at least one of: a first priority level, or a second priority level that is lower than the first priority level.

[0231] In a forty-third aspect, alone or in combination with the forty-second aspect, the priority level of the selected RACH procedure includes a first priority level based at least in part on the UE being at or near a cell edge.

[0232] In a forty-fourth aspect, alone or in combination with one or more of the forty-second to forty-third aspects, the priority level of the selected RACH procedure includes a first priority level based at least in part on the UE satisfying a speed threshold.

[0233] In a forty-fifth aspect, either alone or in combination with one or more of aspects one to forty-fourth, the selected RACH procedure comprises a four-step RACH procedure having a first priority level higher than a second priority level, and process 800 comprises receiving an indication of the first priority level in message 3.

[0234] In a forty-sixth aspect, alone or in combination with the forty-fifth aspect, the selected RACH procedure is prioritized based at least in part on the indication of the first priority level.

[0235] In a forty-seventh aspect, either alone or in combination with one or more of aspects one to thirty-six, the selected RACH procedure comprises a four-step RACH procedure having a first priority level that is higher than a second priority level, and process 800 comprises receiving an indication of the first priority level in message 3 based at least in part on a location of the UE relative to one or more cells satisfying a range threshold, wherein the one or more cells comprise cells associated with a base station, neighboring cells, or a combination thereof.

[0236] In a forty-eighth aspect, either alone or in combination with one or more of aspects one to thirty-six, the selected RACH procedure comprises a four-step RACH procedure having a first priority level higher than a second priority level, and process 800 comprises receiving an indication of the first priority level in message 3 based at least in part on a speed of the UE satisfying a speed threshold.

[0237] In a forty-ninth aspect, either alone or in combination with one or more of aspects one to thirty-six, the selected RACH procedure comprises a two-step RACH procedure having a first priority level higher than a second priority level, and process 800 comprises receiving an indication of the first priority level in message A.

[0238] In a fiftieth aspect, alone or in combination with the forty-ninth aspect, process 800 includes prioritizing a selected RACH procedure based at least in part on an indication of a first priority level.

[0239] In the fifty-first aspect, either alone or in combination with one or more of the first to thirty-sixth aspects, the selected RACH procedure comprises a two-step RACH procedure having a first priority level that is higher than a second priority level, and process 800 comprises: receiving an indication of the first priority level in message A based at least in part on the UE's location relative to one or more cellular cells satisfying a range threshold, wherein the one or more cellular cells include cellular cells associated with a base station, neighboring cellular cells, or a combination thereof.

[0240] In a fifty-second aspect, either alone or in combination with one or more of aspects one to thirty-six, the selected RACH procedure comprises a two-step RACH procedure having a first priority level higher than a second priority level, and process 800 comprises receiving an indication of the first priority level in message A based at least in part on a speed of the UE satisfying a speed threshold.

[0241] although Figure 8 An example block diagram of process 800 is shown, but in some aspects, process 800 may include Figure 8Additional blocks, fewer blocks, different blocks, or differently arranged blocks than those depicted in the process 800. Additionally or alternatively, two or more blocks of process 800 may be executed in parallel.

[0242] The following provides an overview of some aspects of the disclosure:

[0243] Aspect 1: A wireless communication method performed by a user equipment (UE), comprising: transmitting to a base station an indication of a selected random access channel (RACH) procedure selected based at least in part on positioning state information (PSI) associated with the UE, wherein the PSI is based at least in part on one or more positioning measurements obtained by the UE; and receiving a resource configuration for the selected RACH procedure from the base station.

[0244] Aspect 2: The method of Aspect 1 further comprises: obtaining the one or more positioning measurements.

[0245] Aspect 3: The method of any one of Aspects 1 or 2 further includes: receiving auxiliary information from a base station; obtaining the one or more positioning measurements based at least in part on the auxiliary information; transmitting at least a portion of the PSI to the base station; and selecting the selected RACH procedure based at least in part on the PSI.

[0246] Aspect 4: The method of any one of aspects 1-3, further comprising: obtaining the one or more positioning measurements; determining the PSI based at least in part on the one or more positioning measurements; and selecting the selected RACH procedure based at least in part on the PSI.

[0247] Aspect 5: The method of any one of aspects 1-4, wherein the selected RACH procedure is selected based at least in part on UE capabilities, quality of service requirements, or a combination thereof.

[0248] Aspect 6: The method according to any one of aspects 1-5, wherein the indication of the selected RACH procedure indicates at least one of: a selected RACH category, a selected RACH type, a selected RACH resource set, a selected RACH priority, or a combination thereof.

[0249] Aspect 7: The method of aspect 6, wherein the selected RACH category comprises contention-free random access (CFRA) or contention-based random access (CBRA).

[0250] Aspect 8: The method of any one of Aspects 6 or 7, wherein the selected RACH type comprises a two-step RACH or a four-step RACH.

[0251] Aspect 9: The method according to any one of aspects 6-8, wherein the selected RACH priority comprises a first priority or a second priority lower than the first priority.

[0252] Aspect 10: The method of any one of aspects 1-9, wherein the UE is in a radio resource control (RRC) connected state, and wherein the selected RACH procedure comprises a contention-free random access (CFRA) procedure.

[0253] Aspect 11: The method of any of aspects 1-10, further comprising: transmitting a PSI report to a base station, the PSI report comprising one or more PSI elements in a PSI element set and an indication of UE capabilities associated with the selected RACH procedure.

[0254] Aspect 12: The method of aspect 11, wherein the resource configuration is based at least in part on at least a portion of the PSI report and UE capabilities.

[0255] Aspect 13: The method of any one of Aspects 11 or 12 further comprises: receiving an indication of an uplink resource set associated with a physical uplink shared channel or a physical uplink control from a base station, wherein transmitting the PSI report comprises transmitting the PSI report using the uplink resource set.

[0256] Aspect 14: The method of any of Aspects 11-13, further comprising: transmitting to the base station an indication of a specific payload size for transmitting a subset of PSI elements of the set of PSI elements, wherein the subset of PSI elements includes fewer PSI elements than all PSI elements of the set of PSI elements.

[0257] Aspect 15: A method as in Aspect 14, wherein the PSI element subset includes one or more radio access technology (RAT)-related measurements, the measurements including at least one of the following: one or more positioning measurements corresponding to a serving cell associated with a base station, one or more positioning measurements associated with one or more neighboring cells, or a combination thereof.

[0258] Aspect 16: The method of any one of Aspects 14 or 15, wherein the PSI element subset comprises one or more radio access technology (RAT) independent measurements obtained using one or more sensors.

[0259] Aspect 17: A method as in any one of Aspects 11-16, further comprising: determining that a PSI report has a payload size that is greater than the size of a physical uplink shared channel (PUSCH) allocated for transmitting the PSI report, wherein transmitting the PSI report includes using the PUSCH to transmit an initial part of the PSI report according to a priority level higher than a priority level associated with an additional part of a subsequently transmitted PSI report.

[0260] Aspect 18: A method as in Aspect 17, wherein the PSI report includes measurements associated with a selected set of cells, and wherein an initial portion of the PSI report includes measurements associated with a subset of the selected set of cells, wherein the subset of the selected set of cells includes fewer cells than all of the cells in the selected set of cells.

[0261] Aspect 19: The method of aspect 18, wherein the subset of the selected set of cells includes a serving cell and a neighboring cell associated with the base station.

[0262] Aspect 20: The method of any of Aspects 17-19, wherein the resource configuration is based at least in part on an initial portion of a PSI report.

[0263] Aspect 21: The method according to any one of aspects 17-20, further comprising: transmitting to the base station an indication that the PSI report includes an additional part of the PSI report.

[0264] Aspect 22: The method according to any one of aspects 1-21, wherein the resource configuration is carried in a dedicated radio resource control (RRC) message.

[0265] Aspect 23: The method of aspect 22, wherein the RRC message is addressed to a cell radio network temporary identifier of the UE.

[0266] Aspect 24: A method as described in any of Aspects 1-23, wherein the resource configuration indicates at least one of the following: one or more repetitions of an uplink message associated with a selected RACH procedure, one or more repetitions of a downlink message associated with a selected RACH procedure, frequency hopping for uplink messages associated with a selected RACH procedure, frequency hopping for downlink messages associated with a selected RACH procedure, or a combination thereof.

[0267] Aspect 25: A method as in Aspect 24, wherein the uplink message includes at least one of the following: message 1 of a four-step RACH procedure, message 3 of a four-step RACH procedure, a hybrid automatic repeat request acknowledgment (HARQ-ACK) associated with message 4 of a four-step RACH procedure, message A of a two-step RACH procedure, HARQ-ACK associated with message B of a two-step RACH procedure, or a combination thereof.

[0268] Aspect 26: A method as in any one of Aspects 24 or 25, wherein the downlink message comprises at least one of the following: message 2 of the four-step RACH procedure, message 4 of the four-step RACH procedure, message B of the two-step RACH procedure, or a combination thereof.

[0269] Aspect 27: The method of any one of aspects 1-26, further comprising: performing one or more RACH procedure attempts corresponding to the selected RACH procedure; and maintaining a counter corresponding to the number of the one or more RACH procedure attempts.

[0270] Aspect 28: The method of aspect 27, further comprising: performing at least one of the following based at least in part on the counter: preamble retransmission, power ramp-up operation, or a combination thereof.

[0271] Aspect 29: The method of any one of aspects 27 or 28, wherein the one or more RACH procedure attempts corresponding to the selected RACH procedure include no more than a maximum number of RACH procedure attempts, wherein the configuration of the maximum number of RACH procedure attempts is received from the base station.

[0272] Aspect 30: The method of Aspect 29 further includes: determining that a maximum number of RACH procedure attempts have been performed without successfully completing a selected RACH procedure, wherein the selected RACH procedure is associated with a first RACH category and a first RACH type; and based on determining that the maximum number of RACH procedure attempts have been performed without successfully completing the selected RACH procedure, performing at least one of the following: an additional RACH procedure, wherein the additional RACH procedure is associated with at least one of a second RACH category, a second RACH type, or a combination thereof; a higher coverage extension level, or a combination thereof.

[0273] Aspect 31: A method as in aspect 30, wherein the additional RACH procedure comprises at least one of the following: a prioritized contention-based random access procedure, wherein the selected RACH procedure comprises a contention-free random access procedure, a two-step RACH procedure, a four-step RACH procedure, or a combination thereof.

[0274] Aspect 32: The method of any one of Aspects 30 or 31, further comprising: selecting a first RACH preamble to be used with the one or more RACH procedure attempts; using an initial transmission power for the one or more RACH procedure attempts; selecting a second RACH preamble to be used with an additional RACH procedure; and for the additional RACH procedure, using at least one of: the initial transmission power, an additional transmission power based at least in part on a power ramp-up operation, or a combination thereof.

[0275] Aspect 33: The method of any of Aspects 29-32, wherein the maximum number of RACH procedure attempts is based at least in part on at least one of: UE capabilities, coverage corresponding to a cell associated with the base station, quality of service requirements, or a combination thereof.

[0276] Aspect 34: The method of any of aspects 29-33, wherein the maximum number of RACH procedure attempts is based at least in part on at least a portion of a PSI associated with the UE.

[0277] Aspect 35: The method of any of aspects 29-34, wherein the maximum number of RACH procedure attempts is based at least in part on at least one of: a location of the UE relative to one or more cells, a speed of the UE relative to one or more cells, or a combination thereof.

[0278] Aspect 36: A method as described in any of Aspects 29-35, wherein the maximum number of RACH procedure attempts includes: a first value based at least in part on at least one of the following: a first position of the UE relative to one or more cellular cells, a first speed of the UE relative to the one or more cellular cells, or a combination of the two; or a second value based at least in part on at least one of the following: a second position of the UE relative to the one or more cellular cells, a second speed of the UE relative to the one or more cellular cells, or a combination of the two, wherein the first value is higher than the second value, which is at least in part based on: the first position of the UE relative to the one or more cellular cells indicates that the UE is at or near the edge of the cellular cell, the first speed of the UE relative to the one or more cellular cells is greater than the second speed of the UE relative to the one or more cellular cells, or a combination of the two.

[0279] Aspect 37: The method of aspect 36, wherein the one or more cellular cells include at least one of the following: a cellular cell associated with a base station, a neighboring cellular cell, or a combination thereof.

[0280] Aspect 38: A method as in any of Aspects 1-37, wherein the resource configuration is based at least in part on a first priority level corresponding to the UE relative to a second priority level corresponding to an additional UE, wherein the first priority level and the second priority level are configured using at least one of: a power ramp factor associated with a selected RACH procedure, a scaling factor associated with a selected RACH procedure, or a combination thereof.

[0281] Aspect 39: A method as in Aspect 38, wherein the power ramp factor includes: a first value corresponding to the UE based at least in part on at least one of: the position of the UE relative to one or more cells, the speed of the UE relative to the one or more cells, or a combination of the two; and a second value corresponding to the additional UE based at least in part on at least one of: the position of the additional UE relative to the one or more cells, the speed of the additional UE relative to the one or more cells, or a combination of the two, wherein the first value is higher than the second value, which is at least in part based on: the position of the UE relative to the one or more cells indicates that the UE is closer to the cell edge than the additional UE, the speed of the UE relative to the one or more cells is greater than the speed of the additional UE relative to the one or more cells, or a combination of the two.

[0282] Aspect 40: A method as in any of Aspects 38 or 39, wherein the scaling factor includes: a first value corresponding to the UE based at least in part on at least one of: a position of the UE relative to one or more cells, a speed of the UE relative to the one or more cells, or a combination of the two; and a second value corresponding to the additional UE based at least in part on at least one of: a position of the additional UE relative to the one or more cells, a speed of the additional UE relative to the one or more cells, or a combination of the two, wherein the first value is higher than the second value, which is at least in part based on: the position of the UE relative to the one or more cells indicates that the UE is closer to the cell edge than the additional UE, the speed of the UE relative to the one or more cells is greater than the speed of the additional UE relative to the one or more cells, or a combination thereof.

[0283] Aspect 41: The method of any one of aspects 1-40, wherein the selected RACH procedure comprises a contention-based random access (CBRA) procedure, the CBRA procedure comprising a four-step CBRA procedure or a two-step CBRA procedure.

[0284] Aspect 42: The method of Aspect 41, wherein the resource configuration includes at least one of the following: a message 1 resource corresponding to a four-step CBRA procedure, or a message A resource corresponding to a two-step CBRA procedure.

[0285] Aspect 43: A method as in any one of Aspects 41 or 42, wherein a priority level is associated with a CBRA procedure associated with the UE, wherein the priority level is higher than the priority level of a CBRA procedure associated with another UE, and wherein the resource configuration comprises a plurality of resource sets based on the priority level, each resource set in the plurality of resource sets corresponding to a corresponding coverage extension level, wherein each resource set in the plurality of resource sets comprises at least one of: a dedicated preamble, a dedicated RACH opportunity, or a combination thereof.

[0286] Aspect 44: The method according to any one of aspects 1-43, wherein the resource configuration is indicated using a system information block.

[0287] Aspect 45: The method of any one of aspects 1-44, wherein the selected RACH procedure comprises a four-step RACH procedure or a two-step RACH procedure.

[0288] Aspect 46: The method of Aspect 45 further includes: determining the location of the UE relative to one or more cellular cells based at least in part on the PSI, wherein the one or more cellular cells include cellular cells associated with the base station, adjacent cellular cells, or a combination thereof; determining that the location of the UE indicates that the UE is at or near the edge of the cellular cell; and selecting a two-step RACH procedure based at least in part on determining that the location of the UE indicates that the UE is at or near the edge of the cellular cell.

[0289] Aspect 47: The method as in any of Aspects 45 or 46 further includes: determining a speed of the UE relative to one or more cellular cells based at least in part on the PSI, wherein the one or more cellular cells include a cellular cell associated with a base station, a neighboring cellular cell, or a combination thereof; determining that the speed of the UE satisfies a speed threshold; and selecting a two-step RACH procedure based at least in part on determining that the speed of the UE satisfies the speed threshold.

[0290] Aspect 48: The method of any one of aspects 1-47, wherein the resource configuration is based at least in part on a coverage extension level, the coverage extension level comprising at least one of: a normal coverage extension level, an extended coverage extension level, or a combination thereof.

[0291] Aspect 49: The method of Aspect 48, further comprising: selecting the coverage extension level based at least in part on the PSI.

[0292] Aspect 50: The method as in any of Aspects 48 or 49 further includes: determining the location of the UE relative to one or more cellular cells based at least in part on the PSI, wherein the one or more cellular cells include cellular cells associated with the base station, adjacent cellular cells, or a combination thereof; determining that the location of the UE satisfies a range threshold; and selecting an extended coverage extension level based at least in part on determining that the location of the UE satisfies the range threshold.

[0293] Aspect 51: A method as in any of Aspects 1-50, wherein the selected RACH procedure is selected at least in part based on a priority level of the selected RACH procedure, wherein the priority level of the selected RACH procedure includes at least one of: a first priority level, or a second priority level lower than the first priority level.

[0294] Aspect 52: The method of Aspect 51 further includes: determining the location of the UE relative to one or more cellular cells based at least in part on the PSI, wherein the one or more cellular cells include cellular cells associated with the base station, adjacent cellular cells, or a combination thereof; determining that the location of the UE indicates that the UE is at or near the edge of the cellular cell; and selecting a first priority level based at least in part on determining that the location of the UE indicates that the UE is at or near the edge of the cellular cell.

[0295] Aspect 53: The method as in any of Aspects 51 or 52 further includes: determining a speed of the UE relative to one or more cellular cells based at least in part on the PSI, wherein the one or more cellular cells include cellular cells associated with a base station, adjacent cellular cells, or a combination thereof; determining that the speed of the UE satisfies a speed threshold; and selecting a first priority level based at least in part on determining that the speed of the UE satisfies the speed threshold.

[0296] Aspect 54: The method of any of Aspects 1-45, wherein the selected RACH procedure comprises a four-step RACH procedure having a first priority level higher than a second priority level, the method further comprising: transmitting an indication of the first priority level in message 3.

[0297] Aspect 55: The method of aspect 54, wherein the selected RACH procedure is prioritized based at least in part on the indication of the first priority level.

[0298] Aspect 56: A method as described in any of Aspects 1-45, wherein the selected RACH procedure includes a four-step RACH procedure having a first priority level higher than a second priority level, the method further comprising: determining the location of the UE relative to one or more cellular cells based at least in part on the PSI, wherein the one or more cellular cells include cellular cells associated with a base station, neighboring cellular cells, or a combination thereof; and determining that the location of the UE satisfies a range threshold; and transmitting an indication of the first priority level in message 3 based at least in part on determining that the location of the UE satisfies the range threshold.

[0299] Aspect 57: A method as described in any of Aspects 1-45, wherein the selected RACH procedure includes a four-step RACH procedure having a first priority level higher than a second priority level, the method further comprising: determining a speed of the UE relative to one or more cellular cells based at least in part on the PSI, wherein the one or more cellular cells include cellular cells associated with a base station, neighboring cellular cells, or a combination thereof; determining that the speed of the UE satisfies a speed threshold; and transmitting an indication of the first priority level in message 3 based at least in part on determining that the speed of the UE satisfies the speed threshold.

[0300] Aspect 58: The method of any of Aspects 1-45, wherein the selected RACH procedure comprises a two-step RACH procedure having a first priority level higher than a second priority level, the method further comprising: transmitting an indication of the first priority level in message A.

[0301] Aspect 59: The method of aspect 58, wherein the selected RACH procedure is prioritized based at least in part on the indication of the first priority level.

[0302] Aspect 60: A method as described in any of Aspects 1-45, wherein the selected RACH procedure includes a two-step RACH procedure having a first priority level higher than a second priority level, the method further comprising: determining the location of the UE relative to one or more cellular cells based at least in part on the PSI, wherein the one or more cellular cells include cellular cells associated with a base station, neighboring cellular cells, or a combination thereof; determining that the location of the UE satisfies a range threshold; and transmitting an indication of the first priority level in message A based at least in part on determining that the location of the UE satisfies the range threshold.

[0303] Aspect 61: A method as described in any of Aspects 1-45, wherein the selected RACH procedure includes a two-step RACH procedure having a first priority level higher than a second priority level, the method further comprising: determining a speed of the UE relative to one or more cellular cells based at least in part on the PSI, wherein the one or more cellular cells include cellular cells associated with a base station, adjacent cellular cells, or a combination thereof; determining that the speed of the UE satisfies a speed threshold; and transmitting an indication of the first priority level in message A based at least in part on determining that the speed of the UE satisfies the speed threshold.

[0304] Aspect 62: A wireless communication method performed by a base station, comprising: receiving an indication of a selected random access channel (RACH) procedure from a user equipment (UE) based at least in part on positioning state information (PSI) associated with the UE, wherein the PSI is based at least in part on one or more positioning measurements obtained by the UE; and transmitting a resource configuration for the selected RACH procedure to the UE.

[0305] Aspect 63: The method of aspect 62 further comprises: transmitting assistance information to the UE; and receiving at least a portion of the PSI from the UE, wherein the PSI comprises one or more positioning measurements based at least in part on the assistance information.

[0306] Aspect 64: The method of any of Aspects 62 or 63, wherein the selected RACH procedure is selected based at least in part on UE capabilities, quality of service requirements, or a combination thereof.

[0307] Aspect 65: The method of any of Aspects 62-64, wherein the indication of the selected RACH procedure indicates at least one of: a selected RACH category, a selected RACH type, a selected RACH resource set, a selected RACH priority, or a combination thereof.

[0308] Aspect 66: The method of aspect 65, wherein the selected RACH category comprises contention-free random access (CFRA) or contention-based random access (CBRA).

[0309] Aspect 67: The method of any one of Aspects 65 or 66, wherein the selected RACH type comprises a two-step RACH or a four-step RACH.

[0310] Aspect 68: The method of any one of aspects 65-67, wherein the selected RACH priority comprises a first priority or a second priority lower than the first priority.

[0311] Aspect 69: The method of any one of aspects 62-68, wherein the UE is in a radio resource control (RRC) connected state, and wherein the selected RACH procedure comprises a contention-free random access (CFRA) procedure.

[0312] Aspect 70: The method of any of aspects 62-69, further comprising: receiving a PSI report from the UE, the PSI report comprising one or more PSI elements in the set of PSI elements and an indication of UE capabilities associated with the selected RACH procedure.

[0313] Aspect 71: The method of aspect 70, wherein the resource configuration is based at least in part on at least a portion of the PSI report and UE capabilities.

[0314] Aspect 72: The method of any one of aspects 70 or 71, further comprising: transmitting to the UE an indication of an uplink resource set associated with a physical uplink shared channel or a physical uplink control, wherein the PSI report is transmitted using the uplink resource set.

[0315] Aspect 73: The method of any of aspects 70-72, further comprising: receiving from the UE an indication of a specific payload size for transmitting a subset of PSI elements of the set of PSI elements, wherein the subset of PSI elements includes fewer PSI elements than all PSI elements of the set of PSI elements.

[0316] Aspect 74: A method as in Aspect 73, wherein the PSI element subset includes one or more radio access technology (RAT)-related measurements, the measurements including at least one of: one or more positioning measurements corresponding to a serving cell associated with a base station, one or more positioning measurements associated with one or more neighboring cells, or a combination thereof.

[0317] Aspect 75: The method of any one of Aspects 73 or 74, wherein the PSI element subset comprises one or more radio access technology (RAT) independent measurements obtained using one or more sensors.

[0318] Aspect 76: A method as in any of Aspects 70-75, wherein the PSI report has a payload size that is greater than the size of a physical uplink shared channel (PUSCH) allocated for transmitting the PSI report, and wherein receiving the PSI report includes receiving an initial portion of the PSI report using the PUSCH according to a priority level higher than a priority level associated with subsequently receiving an additional portion of the PSI report.

[0319] Aspect 77: A method as in Aspect 76, wherein the PSI report includes measurements associated with a selected set of cells, and wherein an initial portion of the PSI report includes measurements associated with a subset of the selected set of cells, wherein the subset of the selected set of cells includes fewer cells than all of the cells in the selected set of cells.

[0320] Aspect 78: The method of aspect 77, wherein the subset of the selected set of cells includes a serving cell and a neighboring cell associated with the base station.

[0321] Aspect 79: The method of any of Aspects 76-78, wherein the resource configuration is based at least in part on an initial portion of a PSI report.

[0322] Aspect 80: The method of any one of aspects 76-79, further comprising: receiving an indication from the UE that the PSI report includes an additional part of the PSI report.

[0323] Aspect 81: The method of any one of Aspects 62-80, wherein the resource configuration is carried in a dedicated radio resource control (RRC) message.

[0324] Aspect 82: The method of aspect 81, wherein the RRC message is addressed to a cell radio network temporary identifier of the UE.

[0325] Aspect 83: A method as described in any of Aspects 62-82, wherein the resource configuration indicates at least one of the following: one or more repetitions of an uplink message associated with a selected RACH procedure, one or more repetitions of a downlink message associated with a selected RACH procedure, frequency hopping for uplink messages associated with a selected RACH procedure, frequency hopping for downlink messages associated with a selected RACH procedure, or a combination thereof.

[0326] Aspect 84: A method as in Aspect 83, wherein the uplink message includes at least one of the following: message 1 of a four-step RACH procedure, message 3 of a four-step RACH procedure, a hybrid automatic repeat request acknowledgment (HARQ-ACK) associated with message 4 of a four-step RACH procedure, message A of a two-step RACH procedure, HARQ-ACK associated with message B of a two-step RACH procedure, or a combination thereof.

[0327] Aspect 85: A method as in any one of Aspects 83 or 84, wherein the downlink message comprises at least one of: message 2 of a four-step RACH procedure, message 4 of a four-step RACH procedure, message B of a two-step RACH procedure, or a combination thereof.

[0328] Aspect 86: The method according to any one of aspects 62-85, further comprising: transmitting to the UE a configuration of a maximum number of RACH procedure attempts corresponding to the selected RACH procedure.

[0329] Aspect 87: The method of aspect 86, wherein the maximum number of RACH procedure attempts is based at least in part on at least a portion of a PSI associated with the UE.

[0330] Aspect 88: The method of any of Aspects 86 or 87, wherein the maximum number of RACH procedure attempts is based at least in part on at least one of: a location of the UE relative to one or more cells, a speed of the UE relative to one or more cells, or a combination thereof.

[0331] Aspect 89: A method as described in any of Aspects 86-88, wherein the maximum number of RACH procedure attempts includes: a first value based at least in part on at least one of the following: a first position of the UE relative to one or more cellular cells, a first speed of the UE relative to the one or more cellular cells, or a combination of the two; or a second value based at least in part on at least one of the following: a second position of the UE relative to the one or more cellular cells, a second speed of the UE relative to the one or more cellular cells, or a combination of the two, wherein the first value is higher than the second value, which is at least in part based on: the first position of the UE relative to the one or more cellular cells indicates that the UE is at or near the edge of the cellular cell, the first speed of the UE relative to the one or more cellular cells is greater than the second speed of the UE relative to the one or more cellular cells, or a combination thereof.

[0332] Aspect 90: The method of aspect 89, wherein the one or more cells include at least one of: a cell associated with a base station, a neighboring cell, or a combination thereof.

[0333] Aspect 91: A method as in any of Aspects 62-90, wherein the resource configuration is based at least in part on a first priority level corresponding to the UE relative to a second priority level corresponding to an additional UE, wherein the first priority level and the second priority level are configured using at least one of: a power ramp factor associated with a selected RACH procedure, a scaling factor associated with a selected RACH procedure, or a combination thereof.

[0334] Aspect 92: A method as in Aspect 91, wherein the power ramp factor includes: a first value corresponding to the UE based at least in part on at least one of: the position of the UE relative to one or more cells, the speed of the UE relative to the one or more cells, or a combination of the two; and a second value corresponding to the additional UE based at least in part on at least one of: the position of the additional UE relative to the one or more cells, the speed of the additional UE relative to the one or more cells, or a combination of the two, wherein the first value is higher than the second value, which is at least in part based on: the position of the UE relative to the one or more cells indicates that the UE is closer to the cell edge than the additional UE, the speed of the UE relative to the one or more cells is greater than the speed of the additional UE relative to the one or more cells, or a combination of the two.

[0335] Aspect 93: A method as in any of Aspects 91 or 92, wherein the scaling factor includes: a first value corresponding to the UE based at least in part on at least one of: a position of the UE relative to one or more cells, a speed of the UE relative to the one or more cells, or a combination of the two; and a second value corresponding to the additional UE based at least in part on at least one of: a position of the additional UE relative to the one or more cells, a speed of the additional UE relative to the one or more cells, or a combination of the two, wherein the first value is higher than the second value, which is at least in part based on: the position of the UE relative to the one or more cells indicates that the UE is closer to the cell edge than the additional UE, the speed of the UE relative to the one or more cells is greater than the speed of the additional UE relative to the one or more cells, or a combination thereof.

[0336] Aspect 94: The method of any one of aspects 62-93, wherein the selected RACH procedure comprises a contention-based random access (CBRA) procedure, the CBRA procedure comprising a four-step CBRA procedure or a two-step CBRA procedure.

[0337] Aspect 95: The method of Aspect 94, wherein the resource configuration includes at least one of the following: a message 1 resource corresponding to a four-step CBRA procedure, or a message A resource corresponding to a two-step CBRA procedure.

[0338] Aspect 96: A method as in any of Aspects 94 or 95, wherein a priority level is associated with a CBRA procedure associated with the UE, wherein the priority level is higher than a priority level of a CBRA procedure associated with another UE, and wherein the resource configuration includes a plurality of resource sets based at least in part on the priority level, each resource set in the plurality of resource sets corresponding to a corresponding coverage extension level, wherein each resource set in the plurality of resource sets includes at least one of: a dedicated preamble, a dedicated RACH opportunity, or a combination thereof.

[0339] Aspect 97: The method according to any one of aspects 62-96, wherein the resource configuration is indicated using a system information block.

[0340] Aspect 98: The method of any one of aspects 62-97, wherein the selected RACH procedure comprises a four-step RACH procedure or a two-step RACH procedure.

[0341] Aspect 99: The method of aspect 98, wherein the selected RACH procedure comprises a two-step RACH procedure based at least in part on the UE being at or near a cell edge.

[0342] Aspect 100: The method of any of aspects 98 or 99, wherein the selected RACH procedure comprises a two-step RACH procedure based at least in part on a speed of the UE satisfying a speed threshold.

[0343] Aspect 101: The method of any of aspects 62-100, wherein the resource configuration is based at least in part on a coverage extension level, the coverage extension level comprising at least one of: a normal coverage extension level, an extended coverage extension level, or a combination thereof.

[0344] Aspect 102: The method of Aspect 101, wherein the coverage extension level is based at least in part on the PSI.

[0345] Aspect 103: The method of any of aspects 101 or 102, wherein the coverage extension level comprises an extended coverage extension level based at least in part on the UE satisfying a range threshold.

[0346] Aspect 104: A method as in any of Aspects 62-103, wherein the selected RACH procedure is selected based at least in part on a priority level of the selected RACH procedure, wherein the priority level of the selected RACH procedure includes at least one of: a first priority level, or a second priority level lower than the first priority level.

[0347] Aspect 105: The method of aspect 104, wherein the priority level of the selected RACH procedure comprises a first priority level based at least in part on the UE being at or near a cell edge.

[0348] Aspect 106: The method of any of aspects 104 or 105, wherein the priority level of the selected RACH procedure comprises a first priority level based at least in part on the UE satisfying a speed threshold.

[0349] Aspect 107: The method of any of aspects 62-98, wherein the selected RACH procedure comprises a four-step RACH procedure having a first priority level higher than a second priority level, the method further comprising: receiving an indication of the first priority level in message 3.

[0350] Aspect 108: The method of aspect 107, wherein the selected RACH procedure is to be prioritized based at least in part on the indication of the first priority level.

[0351] Aspect 109: A method as in any of Aspects 62-98, wherein the selected RACH procedure includes a four-step RACH procedure having a first priority level higher than a second priority level, the method further comprising: receiving an indication of the first priority level in message 3 based at least in part on a location of the UE relative to one or more cellular cells satisfying a range threshold, wherein the one or more cellular cells include cellular cells associated with a base station, adjacent cellular cells, or a combination thereof.

[0352] Aspect 110: A method as in any of Aspects 62-98, wherein the selected RACH procedure includes a four-step RACH procedure having a first priority level higher than a second priority level, the method further comprising: receiving an indication of the first priority level in message 3 based at least in part on a speed of the UE satisfying a speed threshold.

[0353] Aspect 111: A method as in any of aspects 62-98, wherein the selected RACH procedure comprises a two-step RACH procedure having a first priority level higher than a second priority level, the method further comprising: receiving an indication of the first priority level in message A.

[0354] Aspect 112: The method of aspect 111, further comprising: prioritizing the selected RACH procedure based at least in part on the indication of the first priority level.

[0355] Aspect 113: A method as in any of Aspects 62-98, wherein the selected RACH procedure includes a two-step RACH procedure having a first priority level higher than a second priority level, the method further comprising: receiving an indication of the first priority level in message A based at least in part on a location of the UE relative to one or more cells satisfying a range threshold, wherein the one or more cells include cells associated with a base station, adjacent cells, or a combination thereof.

[0356] Aspect 114: A method as in any of Aspects 62-98, wherein the selected RACH procedure comprises a two-step RACH procedure having a first priority level higher than a second priority level, the method further comprising: receiving an indication of the first priority level in message A based at least in part on a speed of the UE satisfying a speed threshold.

[0357] Aspect 115: An apparatus for wireless communication at a device, comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform a method as described in one or more of Aspects 1-61.

[0358] Aspect 116: An apparatus for wireless communication, comprising a memory and one or more processors coupled to the memory, the memory and the one or more processors configured to perform the method as described in one or more of aspects 1-61.

[0359] Aspect 117: An apparatus for wireless communication, comprising at least one means for performing the method as described in one or more of aspects 1-61.

[0360] Aspect 118: A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by a processor to perform the method of one or more of aspects 1-61.

[0361] Aspect 119: A non-transitory computer-readable medium storing an instruction set for wireless communication, the instruction set comprising one or more instructions that, when executed by one or more processors of a device, cause the device to perform the method as described in one or more aspects of aspects 1-61.

[0362] Aspect 120: An apparatus for wireless communication at a device, comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform a method as described in one or more of Aspects 62-114.

[0363] Aspect 121: An apparatus for wireless communication, comprising a memory and one or more processors coupled to the memory, the memory and the one or more processors configured to perform the method as described in one or more of aspects 62-114.

[0364] Aspect 122: An apparatus for wireless communication, comprising at least one means for performing the method as recited in one or more of Aspects 62-114.

[0365] Aspect 123: A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by a processor to perform the method of one or more of aspects 62-114.

[0366] Aspect 124: A non-transitory computer-readable medium storing an instruction set for wireless communication, the instruction set comprising one or more instructions that, when executed by one or more processors of a device, cause the device to perform the method of one or more of aspects 62-114.

[0367] The foregoing disclosure provides illustration and description, but is not intended to be exhaustive or to limit the aspects to the precise forms disclosed. Modifications and variations may be made in light of the above disclosure or may be acquired by practice of the various aspects.

[0368] As used herein, the term "component" is intended to be broadly interpreted as a combination of hardware and / or hardware and software. "Software" should be broadly interpreted as meaning instructions, instruction sets, codes, code segments, program codes, programs, subroutines, software modules, applications, software applications, software packages, routines, subroutines, objects, executables, threads of execution, procedures, and / or functions, etc., whether it is described in software, firmware, middleware, microcode, hardware description language or other terms. As used herein, processor hardware, and / or a combination of hardware and software are implemented. It will be obvious that the system and / or method described herein can be implemented in different forms of hardware, and / or a combination of hardware and software. The actual dedicated control hardware or software code for implementing these systems and / or methods does not limit various aspects. Thus, the operation and behavior of these systems and / or methods are described herein without reference to specific software codes--it is understood that software and hardware can be designed to implement these systems and / or methods based at least in part on the description herein.

[0369] As used herein, satisfying a threshold may refer to a value being greater than a threshold, greater than or equal to a threshold, less than a threshold, less than or equal to a threshold, equal to a threshold, not equal to a threshold, etc., depending on the context.

[0370] Although specific feature combinations are described in the claims and / or disclosed in the specification, these combinations are not intended to limit the disclosure of various aspects. In fact, many of these features can be combined in a manner not specifically described in the claims and / or undisclosed in the specification. Although each dependent claim listed below can be directly subordinate to only one claim, the disclosure of various aspects includes that each dependent claim is combined with each other claim in this group of claims. As used herein, the phrase quoting "at least one of" a column of items refers to any combination of these items, including single members. As an example, "at least one of a, b or c" is intended to cover: a, b, c, ab, ac, bc and abc, and any combination with multiple identical elements (for example, aa, aaa, aab, aac, abb, acc, bb, bbb, bbc, cc and ccc, or any other sorting of a, b and c).

[0371] Elements, actions or instructions used herein should not be interpreted as key or necessary unless explicitly described as such. Moreover, as used herein, the articles "one" and "a" are intended to include one or more projects, and can be used interchangeably with "one or more". In addition, as used herein, the article "the" is intended to include one or more projects quoted in conjunction with the article "the", and can be used interchangeably with "one or more". In addition, as used herein, the terms "set (set)" and "group" are intended to include one or more projects (for example, related items, non-related items, or a combination of related items and non-related items), and can be used interchangeably with "one or more". In the occasion of intending to have only one project, the phrase "only one" or similar language is used. Moreover, as used herein, the terms "having", "containing", "including" etc. are intended to be open terms. In addition, the phrase "based on" is intended to mean "based at least in part on", unless otherwise explicitly stated. Furthermore, as used herein, the term "or" when used in a sequence is intended to be inclusive and may be used interchangeably with "and / or" unless explicitly stated otherwise (e.g., when used in conjunction with "either of" or "only one of").

Claims

1. A user equipment UE for wireless communication, comprising: Memory; as well as one or more processors coupled to the memory, the one or more processors configured to: transmitting to a base station an indication of a selected random access channel (RACH) procedure selected based at least in part on positioning state information (PSI) associated with the UE, wherein the PSI is based at least in part on one or more positioning measurements obtained by the UE; and A resource configuration for a selected RACH procedure is received from the base station. 2 . The UE of claim 1 , wherein the one or more processors are further configured to obtain the one or more positioning measurements.

3. The UE of claim 1, wherein the one or more processors are further configured to: receiving assistance information from the base station; obtaining the one or more positioning measurements based at least in part on the assistance information; transmitting at least a portion of the PSI to the base station; and The selected RACH procedure is selected based at least in part on the PSI.

4. The UE of claim 1, wherein the one or more processors are further configured to: obtaining the one or more positioning measurements; determining the PSI based at least in part on the one or more positioning measurements; and The selected RACH procedure is selected based at least in part on the PSI.

5. The UE of claim 1 , wherein the selected RACH procedure is selected based at least in part on: The capabilities of the UE, Quality of service requirements, or Its combination.

6. The UE of claim 1, wherein the indication of the selected RACH procedure indicates at least one of the following: a selected RACH category, wherein the selected RACH category comprises contention-free random access CFRA or contention-based random access CBRA, a selected RACH type, wherein the selected RACH type comprises a two-step RACH or a four-step RACH, The selected RACH resource set, a selected RACH priority, wherein the selected RACH priority comprises a first priority or a second priority lower than the first priority, or Its combination.

7. The UE of claim 1, wherein the UE is in a radio resource control (RRC) connected state, and wherein the selected RACH procedure comprises a contention-free random access (CFRA) procedure.

8. The UE of claim 1, wherein the one or more processors are further configured to transmit a PSI report to the base station, the PSI report comprising one or more PSI elements in a set of PSI elements and an indication of capabilities of the UE associated with a selected RACH procedure.

9. The UE of claim 8, wherein the resource configuration is based at least in part on at least a portion of the PSI report and capabilities of the UE.

10. The UE of claim 8, wherein the one or more processors are further configured to: receiving, from the base station, an indication of a set of uplink resources associated with a physical uplink shared channel or a physical uplink control channel, Wherein to transmit the PSI report, the one or more processors are configured to transmit the PSI report using the uplink resource set.

11. The UE of claim 8, wherein the one or more processors are further configured to transmit to the base station an indication of a specific payload size of a subset of PSI elements for transmitting the set of PSI elements, wherein the subset of PSI elements includes fewer PSI elements than all PSI elements of the set of PSI elements.

12. The UE of claim 11, wherein the PSI element subset comprises one or more radio access technology (RAT)-independent measurements obtained using one or more sensors, or one or more radio access technology (RAT)-dependent measurements comprising at least one of: one or more positioning measurements corresponding to a serving cell associated with the base station, one or more positioning measurements associated with one or more neighboring cells, or Its combination.

13. The UE of claim 11, wherein the one or more processors are further configured to: determining that the PSI report has a payload size that is greater than a size of a physical uplink shared channel (PUSCH) allocated for transmitting the PSI report, Wherein to transmit the PSI report, the one or more processors are configured to transmit an initial portion of the PSI report using the PUSCH according to a priority level higher than a priority level associated with subsequent transmission of additional portions of the PSI report.

14. The UE of claim 13, wherein the resource configuration is based at least in part on the initial portion of the PSI report.

15. The UE of claim 13, wherein the one or more processors are further configured to transmit an indication to the base station that the PSI report includes the additional portion of the PSI report.

16. The UE of claim 1, wherein the resource configuration indicates at least one of the following: one or more repetitions of an uplink message associated with the selected RACH procedure, one or more repetitions of a downlink message associated with the selected RACH procedure, frequency hopping for said uplink message associated with a selected RACH procedure, frequency hopping for said downlink message associated with a selected RACH procedure, Its combination.

17. The UE according to claim 16, wherein the uplink message comprises at least one of the following: Message 1 of the four-step RACH procedure, Message 3 of the four-step RACH procedure, a hybrid automatic repeat request acknowledgement HARQ-ACK associated with message 4 of the four-step RACH procedure, Message A of the two-step RACH procedure, a HARQ-ACK associated with message B of the two-step RACH procedure, or Its combination.

18. The UE according to claim 16, wherein the downlink message comprises at least one of the following: Message 2 of the four-step RACH procedure, Message 4 of the four-step RACH procedure, Message B of the two-step RACH procedure, or Its combination.

19. The UE of claim 1, wherein the one or more processors are further configured to: performing one or more RACH procedure attempts corresponding to the selected RACH procedure; and A counter corresponding to the number of the one or more RACH procedure attempts is maintained.

20. The UE of claim 19, wherein the one or more processors are further configured to perform at least one of the following based at least in part on the counter: Preamble retransmission, Power ramp operation, or Its combination.

21. The UE of claim 1 , wherein the resource configuration is based at least in part on a first priority level corresponding to the UE relative to a second priority level corresponding to an additional UE, wherein the first priority level and the second priority level are configured using at least one of: The power ramp factor associated with the selected RACH procedure, The scaling factor associated with the selected RACH procedure, or Its combination.

22. The UE of claim 1, wherein the selected RACH procedure comprises a contention-based random access (CBRA) procedure, the CBRA procedure comprises a four-step CBRA procedure or a two-step CBRA procedure, and wherein the resource configuration comprises at least one of the following: a Message 1 resource corresponding to the four-step CBRA procedure, or Message A resources corresponding to the two-step CBRA procedure.

23. The UE of claim 22, wherein a priority level is associated with the CBRA procedure associated with the UE, wherein the priority level is higher than a priority level of a CBRA procedure associated with another UE, and wherein the resource configuration comprises a plurality of resource sets based on the priority level, each resource set in the plurality of resource sets corresponding to a respective coverage extension level, wherein each resource set in the plurality of resource sets comprises at least one of the following: Dedicated prefix, Dedicated RACH opportunity, or Its combination.

24. The UE of claim 1, wherein the selected RACH procedure comprises a four-step RACH procedure or a two-step RACH procedure.

25. The UE of claim 1, wherein the resource configuration is based at least in part on a coverage extension level, the coverage extension level comprising at least one of: Normal coverage extension level, Extended coverage level, or Its combination.

26. The UE of claim 1, wherein the selected RACH procedure is selected based at least in part on a priority level of the selected RACH procedure, wherein the priority level of the selected RACH procedure comprises at least one of: First priority level, or A second priority level lower than said first priority level.

27. The UE of claim 1, wherein the selected RACH procedure comprises a four-step RACH procedure having a first priority level higher than a second priority level, the one or more processors being configured to: An indication of the first priority level is transmitted in a message 3, wherein the selected RACH procedure is to be prioritized based at least in part on the indication of the first priority level.

28. The UE of claim 1, wherein the selected RACH procedure comprises a two-step RACH procedure having a first priority level higher than a second priority level, the one or more processors being configured to: An indication of the first priority level is transmitted in a message A, wherein the selected RACH procedure is to be prioritized based at least in part on the indication of the first priority level.

29. A wireless communication method performed by a user equipment UE, comprising: transmitting to a base station an indication of a selected random access channel (RACH) procedure selected based at least in part on positioning state information (PSI) associated with the UE, wherein the PSI is based at least in part on one or more positioning measurements obtained by the UE; and A resource configuration for a selected RACH procedure is received from the base station.

30. A wireless communication method performed by a base station, comprising: receiving, from a user equipment UE, an indication of a selected random access channel RACH procedure based at least in part on positioning state information PSI associated with the UE, wherein the PSI is based at least in part on one or more positioning measurements obtained by the UE; and A resource configuration for the selected RACH procedure is transmitted to the UE.

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