Beam refinement of user equipment specific access information

Abstract

Aspects of the present disclosure generally relate to wireless communications. In some aspects, a network node may receive a random access channel (RACH) from a user equipment (UE) prior to transmitting a user equipment-specific (UE-specific) system information block type 1 (SIB1) associated with the UE. The network node may transmit a reference signal prior to transmitting the UE-specific SIB1 and based at least in part on receiving the RACH, the reference signal based at least in part on a beam management procedure. Numerous other aspects are described.

Description

[0001] Cross - Reference to Related Applications

[0002] This patent application claims priority to U.S. Non - Provisional Patent Application No. 18 / 052,051, entitled "BEAM REFINEMENT FOR USER EQUIPMENT - DEDICATED ACCESS INFORMATION", filed on November 2, 2022, which is hereby incorporated by reference in its entirety. Technical Field

[0003] Aspects of the present disclosure generally relate to wireless communication and relate to techniques and apparatus for beam refinement for user equipment - dedicated access information. Background Art

[0004] Wireless communication systems are widely deployed to provide various telecommunication services such as telephony, video, data, messaging, and broadcasting. A typical wireless communication system may employ multiple access techniques capable of supporting communication with multiple users by sharing available system resources (e.g., bandwidth, transmit power, etc.). Examples of such multiple access techniques 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 / Advanced LTE is an enhanced collection of the Universal Mobile Telecommunications System (UMTS) mobile standards promulgated by the 3rd Generation Partnership Project (3GPP).

[0005] A wireless network may include one or more network nodes that support communication for wireless communication devices such as user equipment (UE) or multiple UEs. A UE may communicate with a network node via downlink communication and uplink communication. "Downlink" (or "DL") refers to the communication link from the network node to the UE, and "uplink" (or "UL") refers to the communication link from the UE to the network node. Some wireless networks may support device - to - device communication, such as via a local link (e.g., sidelink (SL), Wireless Local Area Network (WLAN) link, and / or Wireless Personal Area Network (WPAN) link, etc.).

[0006] The above multiple access technologies have been adopted in various telecommunication standards to provide a common protocol that enables different UEs to communicate at the urban, national, regional, and / or global levels. New Radio (NR) (which may be referred to as 5G) is an enhanced set of LTE mobile standards promulgated by 3GPP. NR is designed to improve spectral efficiency, reduce costs, enhance services, utilize new spectrums, and better integrate with other open standards by using Orthogonal Frequency Division Multiplexing with Cyclic Prefix (CP-OFDM) on the downlink, CP-OFDM and / or Single Carrier Frequency Division Multiplexing (SC-FDM) (also known as Discrete Fourier Transform Spread OFDM (DFT-s-OFDM)) on the uplink, and supporting beamforming, Multiple-Input Multiple-Output (MIMO) antenna technology, and carrier aggregation, thereby better supporting mobile broadband Internet access. With the continuous increase in the demand for mobile broadband access, further improvements to LTE, NR, and other radio access technologies remain useful. Summary of the Invention

[0007] Some aspects described herein relate to a method of wireless communication performed by an apparatus of a network node. The method may include: receiving a Random Access Channel (RACH) from a User Equipment (UE) before transmitting a User Equipment Dedicated (UE-dedicated) System Information Block type 1 (SIB1) associated with the UE. The method may include transmitting a reference signal before transmitting the UE-dedicated SIB1 and at least partially based on receiving the RACH, the reference signal being at least partially based on a beam management process.

[0008] Some aspects described herein relate to a method of wireless communication performed by an apparatus of a UE. The method may include transmitting a RACH using a beam that is at least partially based on a Synchronization Signal Block (SSB) before receiving the UE-dedicated SIB1. The method may include receiving a reference signal before receiving the UE-dedicated SIB1 and at least partially based on transmitting the RACH, the reference signal being at least partially based on a beam management process.

[0009] Some aspects described herein relate to an apparatus for wireless communication at a network node. The apparatus may include a memory and one or more processors coupled to the memory. The one or more processors may be configured to receive a RACH from the UE before transmitting a UE-dedicated SIB1 associated with the UE. The one or more processors may be configured to: transmit a reference signal before transmitting the UE-dedicated SIB1 and at least partially based on receiving the RACH, the reference signal being at least partially based on a beam management process.

[0010] Some aspects described herein relate to an apparatus for wireless communication at a user equipment. The apparatus may include a memory and one or more processors coupled to the memory. The one or more processors may be configured to: transmit a RACH using at least SSB-based beams before receiving a UE-specific SIB1. The one or more processors may be configured to: receive a reference signal before receiving a UE-specific SIB1 and at least partially based on transmitting the RACH, the reference signal being at least partially based on a beam management procedure.

[0011] Some aspects described herein relate to a non-transitory computer-readable medium storing a set of instructions for wireless communication by an apparatus. The set of instructions, when executed by one or more processors of the apparatus, may cause the apparatus to receive a RACH from the UE before transmitting a UE-specific SIB1 associated with the UE. The set of instructions, when executed by one or more processors of the apparatus, may cause the apparatus to transmit a reference signal before transmitting the UE-specific SIB1 and at least partially based on receiving the RACH, the reference signal being at least partially based on a beam management procedure.

[0012] Some aspects described herein relate to a non-transitory computer-readable medium storing a set of instructions for wireless communication by an apparatus. The set of instructions, when executed by one or more processors of the apparatus, may cause the apparatus to transmit a RACH using at least SSB-based beams before receiving a UE-specific SIB1. The set of instructions, when executed by one or more processors of the apparatus, may cause the apparatus to receive a reference signal before receiving a UE-specific SIB1 and at least partially based on transmitting the RACH, the reference signal being at least partially based on a beam management procedure.

[0013] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include means for receiving a RACH from the UE before transmitting a UE-specific SIB1 associated with the UE. The apparatus may include means for transmitting a reference signal before transmitting the UE-specific SIB1 and at least partially based on receiving the RACH, the reference signal being at least partially based on a beam management procedure.

[0014] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include means for transmitting a RACH using at least SSB-based beams before receiving a UE-specific SIB1. The apparatus may include means for receiving a reference signal before receiving a UE-specific SIB1 and at least partially based on transmitting the RACH, the reference signal being at least partially based on a beam management procedure.

[0015] Aspects generally include methods, apparatuses, systems, computer program products, non-transitory computer-readable media, user equipment, base stations, network entities, network nodes, wireless communication devices, and / or processing systems as fully described herein with reference to the accompanying drawings and the specification and as illustrated in the drawings and the specification.

[0016] The features and technical advantages of examples in accordance with the present disclosure have been outlined above rather broadly in order that the detailed description thereof that follows may be better understood. Additional features and advantages will be described hereinafter. The disclosed concepts and specific examples may be readily utilized as a basis for modifying or designing other structures for carrying out the same purposes of the present disclosure. Such equivalent constructions do not depart from the scope of the appended claims. The characteristics of the concepts disclosed herein, both as to their organization and method of operation, as well as associated advantages, will be better understood from the following description when considered in conjunction with the accompanying drawings. Each of the drawings provided herein is for the purpose of illustration and description and is not a definition of the limits of the claims.

[0017] Although aspects are described herein by way of illustration of some examples, those skilled in the art will understand that such aspects may be implemented in many different arrangements and scenarios. The techniques described herein may be implemented using different platform types, devices, systems, shapes, sizes, and / or packaging arrangements. For example, some aspects may be implemented via an integrated chip implementation or other non-module component-based devices (e.g., end-user devices, vehicles, communication devices, computing devices, industrial equipment, retail / shopping devices, medical devices, and / or artificial intelligence devices). Aspects may be implemented in chip-level components, modular components, non-modular components, non-chip-level components, device-level components, and / or system-level components. Devices incorporating the described aspects and features may include additional components and features for implementing and practicing the claimed and described aspects. For example, the transmission and reception of wireless signals may include one or more components for analog and digital purposes (e.g., hardware components including antennas, radio frequency (RF) chains, power amplifiers, modulators, buffers, processors, interleavers, adders, and / or summers). The aspects described herein are intended to be practiced in a wide variety of devices, components, systems, distributed arrangements, and / or end-user devices of various sizes, shapes, and configurations. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] To enable a detailed understanding of the above-described features of the present disclosure, a more specific description thereof as briefly outlined above may be obtained by reference to aspects, some of which are illustrated in the accompanying drawings. It should be noted, however, that the drawings merely illustrate certain typical aspects of the present disclosure and are not to be considered limiting of its scope since the specification may admit other equally effective aspects. Like reference numerals in different drawings may identify the same or similar elements.

[0019] Figure 1 It is a diagram illustrating an example of a wireless network according to the present disclosure.

[0020] Figure 2 It is a diagram illustrating an example of communication between a network node and a user equipment (UE) in a wireless network according to the present disclosure.

[0021] Figure 3 It is a diagram illustrating an example of an access procedure executable by a network node and a UE according to the present disclosure.

[0022] Figure 4A and Figure 4B They are diagrams respectively illustrating a first example and a second example of an access procedure including a beam management procedure according to the present disclosure.

[0023] Figure 5 It is a diagram illustrating an example of a wireless communication procedure between a network node and a UE according to the present disclosure.

[0024] Figure 6 It is a diagram illustrating an example of a wireless communication procedure between a network node and a UE according to the present disclosure.

[0025] Figure 7 It is a diagram illustrating an example procedure, such as that executed by a network node, according to the present disclosure.

[0026] Figure 8 It is a diagram illustrating an example procedure, such as that executed by a UE, according to the present disclosure.

[0027] Figure 9 It is a diagram of an example apparatus for wireless communication according to the present disclosure.

[0028] Figure 10 It is a diagram of an example apparatus for wireless communication according to the present disclosure. Detailed Description

[0029] Aspects of the present disclosure are described more fully hereinafter with reference to the accompanying drawings. However, the present disclosure may be embodied in many different forms and should not be construed as limited to any specific structure or function presented throughout this disclosure. Rather, these aspects are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the present disclosure to those skilled in the art. Those skilled in the art will understand that the scope of the present disclosure is intended to cover any aspect of the present disclosure disclosed herein, whether implemented independently of or in combination with any other aspect of the present disclosure. For example, any number of the aspects set forth herein may be used to implement an apparatus or practice a method. In addition, the scope of the present disclosure is intended to cover such apparatus or methods practiced using other structures, functionality, or a combination of structures and functionality in addition to or different from the aspects of the present disclosure set forth herein. It should be understood that any aspect of the disclosure disclosed herein may be embodied by one or more elements of the present invention.

[0030] Several aspects of a telecommunications system will now be presented with reference to various apparatuses and techniques. These apparatuses 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 may be implemented using hardware, software, or a combination thereof. Whether such elements are implemented as hardware or software depends upon the particular application and design constraints imposed on the overall system.

[0031] Although terms that are generally associated with 5G or New Radio (NR) radio access technology (RAT) may be used herein to describe aspects, aspects of the present disclosure may be applied to other RATs, such as 3G RAT, 4G RAT, and / or post-5G RATs (e.g., 6G).

[0032] Figure 1FIG. 0 is a diagram illustrating an example of a wireless network 100 in accordance with the present disclosure. The wireless network 100 may be a 5G (e.g., NR) network and / or a 4G (e.g., Long Term Evolution (LTE)) network, or may include elements of a 5G (e.g., NR) network and / or elements of a 4G (e.g., Long Term Evolution (LTE)) network, and so on. The wireless network 100 may include one or more network nodes 110 (shown as network nodes 110a, network nodes 110b, network nodes 110c, and network nodes 110d), user equipment (UE) 120 or multiple UEs 120 (shown as UEs 120a, UEs 120b, UEs 120c, UEs 120d, and UEs 120e), and / or other entities. The network nodes 110 are network nodes that communicate with the UEs 120. As shown, the network nodes 110 may include one or more network nodes. For example, the network nodes 110 may be integrated network nodes, which means that the integrated network nodes are configured to utilize a radio protocol stack physically or logically integrated within a single radio access network (RAN) node (e.g., within a single device or unit). As another example, the network nodes 110 may be disaggregated network nodes (sometimes referred to as disaggregated base stations), which means that the network nodes 110 are configured to utilize a protocol stack physically or logically distributed between two or more nodes, such as one or more central units (CUs), one or more distributed units (DUs), or one or more radio units (RUs).

[0033] In some examples, the network nodes 110 are or include network nodes that communicate with the UEs 120 via radio access links, such as RUs. In some examples, the network nodes 110 are or include network nodes that communicate with other network nodes 110 via fronthaul links or midhaul links, such as DUs. In some examples, the network nodes 110 are or include network nodes that communicate with other network nodes 110 via midhaul links or communicate with a core network via a backhaul link, such as CUs. In some examples, the network nodes 110 (such as integrated network nodes 110 or disaggregated network nodes 110) may include multiple network nodes, such as one or more RUs, one or more CUs, and / or one or more DUs. The network nodes 110 may include, for example, NR base stations, LTE base stations, Node Bs, eNBs (e.g., in 4G), gNBs (e.g., in 5G), access points, transmit receive points (TRPs), DUs, RUs, CUs, mobility elements of the network, core network nodes, network elements, network equipment, RAN nodes, or combinations thereof. In some examples, the network nodes 110 may be interconnected with each other or interconnected to one or more other network nodes 110 in the wireless network 100 using any suitable transport network via various types of fronthaul, midhaul, and / or backhaul interfaces, such as direct physical connections, air interfaces, or virtual networks.

[0034] In some examples, network node 110 may provide communication coverage for a specific geographical area. In the 3rd Generation Partnership Project (3GPP), depending on the context in which the term is used, the term "cell" may refer to the coverage area of network node 110 and / or the network node subsystem serving that coverage area. Network node 110 may provide communication coverage for macro cells, picocells, femtocells, and / or another type of cell. A macro cell may cover a relatively large geographical area (e.g., several kilometers in radius) and may allow unrestricted access by UEs 120 with a service subscription. A picocell may cover a relatively small geographical area and may allow unrestricted access by UEs 120 with a service subscription. A femtocell may cover a relatively small geographical area (e.g., a home) and may allow restricted access by UEs 120 associated with the femtocell (e.g., UEs 120 in a Closed Subscriber Group (CSG)). The network node 110 for a macro cell may be referred to as a macro network node. The network node 110 for a picocell may be referred to as a pico network node. The network node 110 for a femtocell may be referred to as a femto network node or a home network node. In Figure 1 the example shown, network node 110a may be a macro network node for macro cell 102a, network node 110b may be a pico network node for picocell 102b, and network node 110c may be a femto network node for femtocell 102c. A network node may support one or more (e.g., three) cells. In some examples, a cell may not necessarily be stationary, and the geographical area of a cell may move according to the location of a moving network node 110 (e.g., a mobile network node).

[0035] In some aspects, the term "base station" or "network node" may refer to an aggregated base station, a disaggregated base station, an integrated access and backhaul (IAB) node, a relay node, or one or more of their components. For example, in some aspects, the "base station" or "network node" may refer to a CU, a DU, an RU, a near-real-time (near-RT) RAN intelligent controller (RIC), or a non-real-time (non-RT) RIC, or a combination thereof. In some aspects, the term "base station" or "network node" may refer to a single device configured to perform one or more functions, such as those described herein in connection with network node 110. In some aspects, the term "base station" or "network node" may refer to multiple devices configured to perform one or more functions. For example, in some distributed systems, each of a number of different devices (which may be located in the same geographical location or different geographical locations) may be configured to perform at least a portion of a function, or repeat the performance of at least a portion of the function, and the term "base station" or "network node" may refer to any one or more of these different devices. In some aspects, the term "base station" or "network node" may refer to one or more virtual base stations or one or more virtual base station functions. For example, in some aspects, two or more base station functions may be instantiated on a single device. In some aspects, the term "base station" or "network node" may refer to one of the base station functions and not another. In this way, a single device may include more than one base station.

[0036] Wireless network 100 may include one or more relay stations. A relay station is a network node that can receive transmissions of data from an upstream node (e.g., network node 110 or UE 120) and forward the transmissions of data to a downstream node (e.g., UE 120 or network node 110). A relay station may be a UE 120 capable of relaying transmissions for other UEs 120. In Figure 1 the example shown, network node 110d (e.g., a relay network node) may communicate with network node 110a (e.g., a macro network node) and UE 120d to facilitate communication between network node 110a and UE 120d. A network node 110 that relays communication may be referred to as a relay station, a relay base station, a relay network node, a relay node, a relay, etc.

[0037] Wireless network 100 may be a heterogeneous network that includes different types of network nodes 110, such as macro network nodes, pico network nodes, femto network nodes, relay network nodes, etc. These different types of network nodes 110 may have different transmission power levels, different coverage areas, and / or different impacts on interference in wireless network 100. For example, a macro network node may have a high transmission power level (e.g., 5 watts to 40 watts), while pico network nodes, femto network nodes, and relay network nodes may have lower transmission power levels (e.g., 0.1 watts to 2 watts).

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

[0039] UEs 120 can be dispersed throughout the wireless network 100, and each UE 120 can be stationary or mobile. The UE 120 can include, for example, an access terminal, a terminal, a mobile station, and / or a subscriber unit. The UE 120 can 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 computer, a camera, a gaming device, a netbook, a smartbook, a superbook, a medical device, a biometric device, a wearable device (e.g., a smart watch, smart clothing, smart glasses, a smart wristband, smart jewelry (e.g., a smart ring or a smart bracelet)), an entertainment device (e.g., a music device, a video device, and / or a satellite radio), a vehicle component or sensor, a smart meter / sensor, industrial manufacturing equipment, a global positioning system device, UE functionality of a network node, and / or any other suitable device configured to communicate via a wireless or wired medium.

[0040] Some UEs 120 can be considered machine type communication (MTC) or evolved or enhanced machine type communication (eMTC) UEs. The MTC UE and / or eMTC UE can include, for example, robots, drones, remote devices, sensors, meters, monitors, and / or location tags, which can communicate with network nodes, another device (e.g., a remote device), or some other entity. Some UEs 120 can be considered Internet of Things (IoT) devices and / or can be implemented as narrowband IoT (NB-IoT) devices. Some UEs 120 can be considered customer premise equipment. The UE 120 can be included inside a housing that houses components of the UE 120, such as a processor component and / or a memory component. In some examples, the processor component and the memory component can be coupled together. For example, the processor component (e.g., one or more processors) and the memory component (e.g., a memory) can be operably coupled, communicatively coupled, electronically coupled, and / or electrically coupled.

[0041] Typically, any number of wireless networks 100 can be deployed in a given geographical area. Each wireless network 100 can support a specific RAT and can operate on one or more frequencies. The RAT can be referred to as radio technology, air interface, etc. The frequency can be referred to as carrier, frequency channel, etc. In a given geographical area, each frequency can support a single RAT to avoid interference between wireless networks of different RATs. In some cases, an NR or 5G RAT network can be deployed.

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

[0043] Devices of the wireless network 100 can communicate using the electromagnetic spectrum, which can be subdivided into various categories, bands, channels, etc. according to frequency or wavelength. For example, devices of the wireless network 100 can communicate using one or more operating bands. In 5G NR, two initial operating bands have been identified as frequency range designations FR1 (410 MHz - 7.125 GHz) and FR2 (24.25 GHz - 52.6 GHz). It should be understood that although a part of FR1 is greater than 6 GHz, in various documents and articles, FR1 is often (interchangeably) referred to as the "sub-6 GHz" band. Regarding FR2, a similar naming issue sometimes occurs, which is usually (interchangeably) referred to as the "millimeter wave" band in documents and articles, although it is different from the extremely high frequency (EHF) band (30 GHz - 300 GHz) identified by the International Telecommunication Union (ITU) as the "millimeter wave" band.

[0044] The frequency between FR1 and FR2 is generally referred to as the intermediate band frequency. Recent 5G NR studies have identified the operating bands for these intermediate band frequencies as frequency range designations FR3 (7.125 GHz - 24.25 GHz). The bands falling within FR3 can inherit FR1 characteristics and / or FR2 characteristics, and thus can effectively extend the features of FR1 and / or FR2 to the intermediate band frequencies. Additionally, higher frequency bands are currently being explored to extend 5G NR operations beyond 52.6 GHz. For example, three higher operating bands have been identified as frequency range designations FR4a or FR4-1 (52.6 GHz - 71 GHz), FR4 (52.6 GHz - 114.25 GHz), and FR5 (114.25 GHz - 300 GHz). Each of these higher frequency bands falls within the EHF band.

[0045] Considering the above examples, unless otherwise specifically stated, it should be understood that if terms such as "below 6 GHz" are used herein, such terms can generally represent frequencies that can be below 6 GHz, can be within FR1, or can include intermediate band frequencies. Additionally, unless otherwise specifically stated, it should be understood that if terms such as "millimeter wave" are used herein, such terms can generally represent frequencies that can include intermediate band frequencies, can be within FR2, FR4, FR4-a or FR4-1, and / or FR5, or can be within the EHF band. Considering that the frequencies included in these operating bands (e.g., FR1, FR2, FR3, FR4, FR4-a, FR4-1, and / or FR5) can be modified, and the techniques described herein apply to those modified frequency ranges.

[0046] In some aspects, a network node (e.g., network node 110) can include a communication manager 150. As described in more detail elsewhere herein, the communication manager 150 can receive a random access channel (RACH) from the UE before transmitting a user equipment dedicated (UE-dedicated) system information block type 1 (SIB1) associated with the UE; and transmit a reference signal before transmitting the UE-dedicated SIB1 and at least partially based on receiving the RACH, the reference signal being at least partially based on a beam management process. Additionally or alternatively, the communication manager 150 can perform one or more other operations described herein.

[0047] In some aspects, a UE (e.g., UE 120) may include a communication manager 140. As described in more detail elsewhere herein, the communication manager 140 may transmit a RACH using a beam that is at least partially based on a Synchronization Signal Block (SSB) before receiving the UE-specific SIB1; and receive a reference signal before receiving the UE-specific SIB1 and at least partially based on transmitting the RACH, the reference signal being at least partially based on a beam management procedure. Additionally or alternatively, the communication manager 140 may perform one or more other operations described herein.

[0048] As indicated above, Figure 1 is provided as an example. Other examples may be different from the example Figure 1 described.

[0049] Figure 2 is a diagram illustrating Example 200 of communication between a network node 110 and a UE 120 in a wireless network 100 according to the present disclosure. The network node 110 may be equipped with a set of antennas 234a through 234t, such as T antennas (T≥1). The UE 120 may be equipped with a set of antennas 252a through 252r, such as R antennas (R≥1). The network node 110 of Example 200 includes one or more radio frequency components, such as antenna 234 and modem 254. In some examples, the network node 110 may include an interface, a communication component, or another component that facilitates communication with the UE 120 or another network node. Some network nodes 110 may not include radio frequency components that facilitate direct communication with the UE 120, such as one or more CUs or one or more DUs.

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

[0051] At the UE 120, a set of antennas 252 (shown as antennas 252a through 252r) may receive downlink signals from the network node 110 and / or other network nodes 110 and may provide a set of the received signals (e.g., R received signals) to a set of modems 254 (e.g., R modems) (shown as modems 254a through 254r). For example, each received signal may be provided to a demodulator component (shown as DEMOD) of the modem 254. Each modem 254 may condition (e.g., filter, amplify, down-convert, and / or digitize) the received signal using the corresponding demodulator component to obtain input samples. Each modem 254 may further process the input samples (e.g., for OFDM) using the demodulator component to obtain the received symbols. The MIMO detector 256 may obtain the received symbols from the modems 254, may perform MIMO detection on the received symbols when applicable, and may provide the detected symbols. The receive processor 258 may process (e.g., demodulate and decode) the detected symbols, may provide the decoded data for the UE 120 to the data sink 260, and may provide the decoded control information and system information to the 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 reference signal received power (RSRP) parameters, received signal strength indicator (RSSI) parameters, reference signal received quality (RSRQ) parameters, and / or CQI parameters, etc. In some examples, one or more components of the UE 120 may be included in the housing 284.

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

[0053] One or more antennas (e.g., antennas 234a through 234t and / or antennas 252a through 252r) may include one or more antenna panels, one or more antenna groups, one or more sets of antenna elements, and / or one or more antenna arrays, etc., or may be included within one or more antenna panels, one or more antenna groups, one or more sets of antenna elements, and / or one or more antenna arrays, etc. An antenna panel, an antenna group, a set of antenna elements, and / or an antenna array may include one or more antenna elements (in a single housing or multiple housings), a set of coplanar antenna elements, a set of non-coplanar antenna elements, and / or one or more antenna elements coupled to one or more transmit and / or receive components (such as Figure 2 one or more components) of.

[0054] On the uplink, at the UE 120, the transmit processor 264 may receive and process data from the data source 262 and control information from the controller / processor 280 (e.g., for reports including RSRP, RSSI, RSRQ, and / or CQI). The transmit processor 264 may generate reference symbols for one or more reference signals. Symbols from the transmit processor 264 may be pre-coded by the TX MIMO processor 266 if applicable, further processed by the modem 254 (e.g., for DFT-s-OFDM or CP-OFDM), and transmitted to the network node 110. In some examples, the modem 254 of the UE 120 may include a modulator and a demodulator. In some examples, the UE 120 includes a transceiver. The transceiver may include any combination of the antenna 252, the modem 254, the MIMO detector 256, the receive processor 258, the transmit processor 264, and / or the TX MIMO processor 266. The transceiver may be used by a processor (e.g., the controller / processor 280) and the memory 282 to perform aspects of any of the methods described herein (e.g., with reference to Figures 3 to 10 ) of any of the methods described herein.

[0055] At the network node 110, the uplink signals from the UE 120 and / or other UEs may be received by the antenna 234, processed by the modem 232 (e.g., the demodulator component (shown as DEMOD) of the modem 232), detected by the MIMO detector 236 if applicable, and further processed by the receive processor 238 to obtain the 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 network node 110 may include a communication unit 244 and may communicate with the network controller 130 via the communication unit 244. The network node 110 may include a scheduler 246 to schedule one or more UEs 120 for downlink communication and / or uplink communication. In some examples, the modem 232 of the network node 110 may include a modulator and a demodulator. In some examples, the network node 110 includes a transceiver. The transceiver may include any combination of the antenna 234, the modem 232, the MIMO detector 236, the receive processor 238, the transmit processor 220, and / or the TX MIMO processor 230. The transceiver may be used by a processor (e.g., the controller / processor 240) and the memory 242 to perform aspects of any of the methods described herein (e.g., with reference to Figures 3 to 10 ) of any of the methods described herein.

[0056] The controller / processor 240 of the network node 110, the controller / processor 280 of the UE 120, and / orFigure 2 Any other component in may perform one or more techniques associated with beam refinement for user equipment specific access information, as described in more detail elsewhere herein. For example, the controller / processor 240 of network node 110, the controller / processor 280 of UE 120, and / or Figure 2 any other component of may perform or direct, for example, Figure 7 process 700 of, Figure 8 process 800 of, and / or the operation of other processes as described herein. Memory 242 and memory 282 may store data and program code for network node 110 and UE 120, respectively. In some examples, memory 242 and / or memory 282 may include a non-transitory computer-readable medium storing one or more instructions for wireless communication (e.g., code and / or program code). For example, when the one or more instructions are executed by one or more processors of network node 110 and / or UE 120 (e.g., directly, or after compilation, transformation, and / or interpretation), the one or more processors, UE 120, and / or network node 110 may be caused to perform or direct, for example, Figure 7 process 700 of, Figure 8 process 800 of, and / or the operation of other processes as described herein. In some examples, executing the instructions may include running the instructions, transforming the instructions, compiling the instructions, and / or interpreting the instructions, and so on.

[0057] In some aspects, the network node includes components for receiving a RACH from the UE before transmitting a UE-specific SIB1 associated with the UE; and / or components for transmitting a reference signal before transmitting the UE-specific SIB1 and at least partially based on receiving the RACH, the reference signal being at least partially based on a beam management process. The components for the network node to perform the operations described herein may include, for example, one or more of the following: communication manager 150, transmit processor 220, TX MIMO processor 230, modem 232, antenna 234, MIMO detector 236, receive processor 238, controller / processor 240, memory 242, or scheduler 246.

[0058] In some aspects, the UE includes components for transmitting a RACH using at least SSB-based beams before receiving the UE-specific SIB1; and / or components for receiving a reference signal before receiving the UE-specific SIB1 and at least partially based on transmitting the RACH, the reference signal being at least partially based on a beam management procedure. The components for the UE to perform the operations described herein may include, for example, one or more of the following: communication manager 140, antenna 252, modem 254, MIMO detector 256, receive processor 258, transmit processor 264, TX MIMO processor 266, controller / processor 280, or memory 282.

[0059] While Figure 2 the boxes in are illustrated as different components, the functions described above for these boxes may be implemented in a single hardware, software, or combined component or in various combinations of components. For example, the functions described for transmit processor 264, receive processor 258, and / or TX MIMO processor 266 may be performed by controller / processor 280 or under the control of the controller / processor.

[0060] As indicated above, Figure 2 is provided as an example. Other examples may be different from the examples described with respect to Figure 2

[0061] The deployment of a communication system (such as a 5G NR system) can be arranged with various components or constituent parts in a variety of ways. In a 5G NR system or network, network nodes, network entities, mobility elements of the network, RAN nodes, core network nodes, network elements, base stations, or network equipment can be implemented in an aggregated or disaggregated architecture. For example, a base station (such as Node B (NB), evolved NB (eNB), NR BS, 5G NB, access point (AP), TRP, or cell, etc.) or one or more units (or one or more components) performing base station functionality can be implemented as an aggregated base station (also referred to as a stand-alone base station or a monolithic base station) or a disaggregated base station. A "network entity" or "network node" may refer to a disaggregated base station or one or more units of a disaggregated base station (such as one or more CUs, one or more DUs, one or more RUs, or a combination thereof).

[0062] ​A centralized base station (e.g., a centralized network node) may be configured to utilize a radio protocol stack that is physically or logically integrated within a single RAN node (e.g., within a single device or unit). A split base station (e.g., a split network node) may be configured to utilize a protocol stack that is physically or logically distributed between two or more units (such as one or more CUs, one or more DUs, or one or more RUs). In some examples, a CU may be implemented within a network node, and one or more DUs may be co-located with the CU, or alternatively, may be geographically or virtually distributed across one or more other network nodes. A DU may be implemented to communicate with one or more RUs. Each of the CU, DU, and RU may also be implemented as a virtual unit, such as a virtual central unit (VCU), a virtual distributed unit (VDU), or a virtual radio unit (VRU), etc.

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

[0064] Figure 3 FIG. 300 is a diagram illustrating an example 300 of an access procedure that may be performed by network node 110 and UE 120 in accordance with the present disclosure.

[0065] An access procedure associated with a wireless network (such as an initial access procedure and / or an initial capture procedure) may enable a UE (e.g., UE 120) to establish a wireless link with a network node operating within the wireless network. In some aspects, and as shown in example 300, the access procedure may be at least partially beam-based.

[0066] For further illustration, a device operating within a wireless network may use millimeter wave (mmWave) to transmit information and / or data, such as by using frequencies above 6 GHz associated with FR1 and / or FR2. Alternatively or in addition, the device may transmit and / or receive mmWave at least in part based on beamforming that focuses the signal in a particular direction. As an example, a phased array may transmit signals at least in part based on different phase shifts for each antenna such that the signals transmitted by the phased array combine constructively and / or destructively to generate a signal (e.g., a beam) propagating in a particular direction. Beamforming may reduce interference within the wireless network and / or improve signal quality at the receiver.

[0067] As part of the access procedure as shown in Example 300, a network node (e.g., network node 110) may use the Physical Broadcast Channel (PBCH) and / or transmit the SSB at least in part based on multiple beams. For example, the network node may transmit a first SSB at least in part based on a first beam (e.g., beam 0), as shown by reference numeral 304-0, a second SSB at least in part based on a second beam (e.g., beam 1), as shown by reference numeral 304-1, until a 64th SSB is transmitted at least in part based on the 64th beam (e.g., beam 63), as shown by reference numeral 304-2. In some aspects, the network node may transmit multiple beams at least in part based on time division multiplexing (TDM) such that the network node transmits beam 0 during a first duration, beam 1 during a second duration, and / or beam 63 during a third duration. Each beam used to transmit the SSB may have a different propagation direction relative to the other beams. By using different beams and accordingly different directions to transmit the SSB, the network node may increase the coverage area of the SSB transmission and / or increase the probability that a UE (e.g., UE 120) can receive the SSB.

[0068] Each SSB may include a corresponding Master Information Block (MIB). For example, the first SSB may include a first MIB 306-0, the second SSB may include a second MIB 306-2, and the 64th MIB may include the 64th MIB 306-2. The MIB may indicate at least some minimum system information (MSI) that can be used by the UE to receive additional communication from a network node, such as bits indicating the most significant bit (MSB) of the system frame number and / or subcarrier spacing associated with SIB1. In some aspects, as indicated by reference numeral 308, each MIB may indicate the corresponding location and / or corresponding air interface resources of Control Resource Set 0 (CORESET0). For example, the first MIB 306-0 may indicate the configuration (e.g., frequency resources and / or time resources) for the first CORESET0 310-0, the second MIB 306-1 may indicate the configuration associated with the second CORESET0 310-1, and / or the 64th MIB 306-2 may indicate the configuration associated with the 64th CORESET0 310-2. In some aspects, the MIB may indicate the physical downlink control channel (PDCCH) monitoring occasion within CORESET0.

[0069] A control resource set (CORESET) may represent a set of physical air interface resources (e.g., one or more frequency resources and / or time resources) that can be used by a network node to transmit PDCCH and / or physical downlink shared channel (PDSCH). For illustration, a CORESET may include multiple resource blocks (RBs) in the frequency domain and one, two, or three symbols (e.g., OFDM symbols) in the time domain. "CORESET0" may represent a specific CORESET among multiple CORESETs that can be configured and / or indicated by the MIB. CORESET0 may alternatively be referred to as a common CORESET and / or may be associated with the transmission of common messages to multiple UEs. In some aspects, the PDCCH transmitted at least partially based on CORESET0 may include information associated with initial access to the radio network.

[0070] For illustration, the network node may transmit a first PDCCH at least in part based on using CORESET0 310-0 and beam 0, transmit a second PDCCH at least in part based on using CORESET0 310-1 and beam 1, and transmit up to the 64th PDCCH at least in part based on using CORESET0 310-2 and beam 63. As shown by reference numeral 312, the network node may include downlink control information (DCI) in the PDCCH transmission, and the DCI indicates PDSCH resources (e.g., within the corresponding CORESET0) for PDSCH transmission including SIB1 (e.g., SIB1 PDSCH). For example, the first PDCCH associated with CORESET0 310-0 and beam 0 may carry a first DCI (e.g., transmitted using beam 0) indicating the configuration and / or air interface resources for SIB1 PDSCH 314-0, the second PDCCH associated with CORESET0 310-1 and beam 1 may carry a second DCI (e.g., transmitted using beam 1) indicating the configuration for SIB1 PDSCH 314-1, and / or the 64th PDCCH associated with CORESET0 310-2 and beam 63 may carry a 64th DCI (e.g., transmitted using beam 64) indicating the configuration for SIB1 PDSCH 314-2. The UE may receive SIB1 at least in part based on the indicated PDSCH configuration and / or the beam for receiving the SSB and / or MIB. Alternatively or in addition, the UE may receive SIB1 at least in part based on using CORESET0. That is, the configuration for the SIB PDSCH may be at least in part based on the associated CORESET0.

[0071] SIB1 may indicate additional MSI, cell access information, and / or scheduling information for communicating with a network node. For example, and as shown by reference numeral 316, the SIB1 received by the UE using SIB1 PDSCH 314-0 and beam 0 may indicate one or more RACH parameters and / or one or more physical random access channel parameters (PRACH). By way of example and not limitation, the RACH parameters and / or PRACH parameters may include a PRACH configuration index, a PRACH preamble, a receive target power, a power ramp step, a frequency domain resource, and / or a time domain resource. In some aspects, the RACH parameters and / or PRACH parameters may indicate a first RACH occasion 0 as shown by reference numeral 318-0 and / or a first RACH occasion 1 as shown by reference numeral 318-1. As another example, the SIB1 received by the UE using SIB1 PDSCH 314-2 and beam 63 may indicate one or more RACH parameters and / or PRACH parameters associated with a 64th RACH occasion 0 as shown by reference numeral 318-2 and / or a 64th RACH occasion 1 as shown by reference numeral 318-2.

[0072] The RACH occasion may be implicitly or explicitly associated with a beam. By way of illustration, the first RACH occasion 0 and / or the first RACH occasion 1 may be implicitly associated with beam 0 at least in part based on the network node and / or the UE transmitting and / or receiving SIB1 using SIB1 PDSCH 314-0 and beam 0. Alternatively or in addition, the first RACH occasion 0 and / or the first RACH occasion 1 may be explicitly associated with beam 0 in the RACH parameters and / or PRACH parameters. Thus, as part of an access procedure, the UE may transmit uplink communication to the network at least in part based on the beam and RACH occasion used by the UE for decoding. For example, the UE may transmit a RACH (e.g., via PRACH) at least in part based on using the first RACH occasion 0, the first RACH occasion 1, and / or beam 0.

[0073] In some aspects, the network node may repeat the initial access information on each beam transmission. That is, the network node may transmit the initial access information in a first transmission at least partially based on a first beam, repeat the initial access information in a second transmission at least partially based on a second beam, and continue to repeat the transmission of the initial access information on other beams until the 64th transmission at least partially based on the 64th beam. Repeating the initial access information may consume air interface resources that could otherwise be used for other purposes. For example, at least partially based on the first amount of information included in SIB1 being greater than the second amount of information included in the SSB, repeating the SIB1 PDSCH transmission may consume a greater amount of air interface resources compared to repeating the SSB transmission. For further illustration, the UE may receive the SIB1 PDSCH transmission only on beam 0 and suppress receiving the SIB1 PDSCH transmission on other beams at least partially based on receiving the SSB on beam 0. In some aspects, and as described below, the network node may send the UE-specific SIB1 to the UE instead of repeating the SIB1 PDSCH initial access transmission on multiple beams, which may reduce the air interface resource consumption.

[0074] The network node may select the number of beams for transmitting the initial access information at least partially based on increasing the coverage area associated with transmitting the initial access information. However, the beams selected by the network node for transmitting the initial access information may be sub-optimal for communication between the network node and a particular UE compared to other additional beams. For illustration, when operating under line-of-sight (LoS) conditions between devices, beam transmissions may provide increased data throughput (compared to omnidirectional transmissions at lower frequencies), but may be more susceptible to obstacles (e.g., a hand on the antenna, a building, or foliage) and / or the device moving from a first location with LoS conditions to a second location without LoS conditions. As part of the initial access process, the UE is able to receive the SSB on beam 0 at a higher power level relative to other beams and selects beam 0 to communicate with the network node. Although the UE is able to receive beam 0 at a higher power level relative to other beams used for transmitting the initial access information, beam 0 may be sub-optimal compared to additional beams not used for transmitting the initial access information. For example, the UE may be operating at a peripheral location with LoS conditions with the network node, the UE may dynamically experience blockage, and / or the UE may move to a second location after selecting beam 0. Sub-optimal beams (e.g., beams that are not the LoS between the two devices and / or result in reduced received power compared to another beam transmitted at the same power) may cause the UE and / or the network node to experience increased recovery errors at the receiver, reduced data throughput, and / or increased data transmission latency.

[0075] Some of the techniques and apparatuses described herein provide beam refinement for user equipment dedicated access information. In some aspects, a network node may receive a RACH from the UE before transmitting a UE-dedicated SIB1 associated with the UE. In some aspects, the RACH may be at least partially based on a first beam associated with SSB transmission. Before transmitting the UE-dedicated SIB1, the network node may transmit a reference signal that is at least partially based on a beam management process. That is, the network node may transmit the reference signal at least partially based on receiving the RACH and initiating the beam management process. Initiating and / or performing the beam management process may enable the network node and / or the UE to select a second beam having improved signal quality (e.g., improved received power) relative to the first beam for communication. The second beam may include a beam different from the first beam and / or a calibrated version of the first beam. The network node may transmit the UE-dedicated SIB1 at least partially based on the second beam.

[0076] In some aspects, the UE may transmit a RACH using a beam that is at least partially based on the SSB before receiving the UE-dedicated SIB1. By way of illustration, the UE may receive the SSB at least partially based on the beam before transmitting the RACH. Before receiving the UE-dedicated SIB1 and at least partially based on transmitting the RACH, the UE may alternatively or additionally receive a reference signal that is at least partially based on a beam management process. For example, as part of performing the beam management process, the UE may receive the reference signal. Performing the beam management process may enable the network node and / or the UE to select a second beam having improved signal quality (e.g., improved received power) relative to the first beam for communication. The UE may receive the UE-dedicated SIB1 at least partially based on the second beam.

[0077] The use of the UE-dedicated SIB1 enables the network node to reduce the duplication of initial access information, conserve air interface resources, and direct the SIB to a specific UE. Since the network node may direct communication to a specific UE, the network node may initiate and / or perform a beam management process with the specific UE. Performing the beam management process as part of an access process, such as a beam refinement process that selects a refinement of an existing beam (e.g., calibration and / or change in propagation direction) may enable the network node and / or the UE to transmit and / or receive the UE-dedicated SIB1 using a beam having improved signal quality relative to another beam used for transmitting the SSB. Alternatively or additionally, the network node and the UE may use a beam having improved signal quality for additional communication. The improved signal quality may reduce receiver recovery errors, increase data throughput, and / or reduce data transmission latency.

[0078] As indicated above, Figure 3 is provided as an example. Other examples may be associated with Figure 3is different from the example described.

[0079] Figure 4A and Figure 4B are diagrams respectively illustrating a first example 400 and a second example 402 of an access procedure including a beam management procedure according to the present disclosure.

[0080] The first example 400 shows a first access procedure in which a beam management procedure is performed before a network node 110 sends a UE-specific SIB1 PDSCH to a UE 120. As shown by reference numeral 404, the network node 110 may at least partially transmit multiple SSBs based on using multiple beams. As an example, the network node 110 may transmit SSBs on 64 beams using TDM and repeat information on each corresponding SSB transmission associated with the corresponding beam, as described with respect to Figure 3 described. Each beam used for SSB transmission may propagate in a different direction relative to other beams used for SSB transmission. In some aspects, the network node may include in the SSB information associated with performing a beam management procedure as described with respect to Figure 5 and Figure 6 described. For example, the network node may transmit and / or indicate in the SSB any combination of reference signal configuration, layer 1 (L1) measurement configuration, L1 measurement report configuration, and / or timing configuration. Alternatively or in addition, the network node may indicate in the SSB a CORESET0 configuration (e.g., frequency resources and / or time resources associated with CORESET0).

[0081] The UE 120 may receive one or more SSB transmissions out of multiple SSB transmissions based at least in part on receiving one or more beams. The UE 120 may select a single beam having a higher signal quality relative to other beams and recover SSB information from the SSB transmission carried by the beam. For example, the UE 120 may select SSB 406 (shown as being transmitted using beam 0) at least in part based on signal quality. In some aspects, and as shown by reference numeral 408, the UE 120 may recover SSB information 410 indicating the configuration associated with CORESET0.

[0082] In some aspects, network node 110 and / or UE 120 may send and / or receive one or more downlink transmissions at least in part based on CORESET0. For example, UE 120 may receive a downlink transmission (e.g., PDCCH) at least in part based on using the same beam (e.g., beam 0) that the UE uses (and / or selects) to receive the SSB transmission. As shown by reference numeral 412, network node 110 may send RACH occasion information in a downlink transmission at least in part based on using the same beam (e.g., beam 0). In some aspects, the network node may indicate and / or include in a downlink transmission (e.g., a PDCCH transmission or a PDSCH transmission) information associated with performing beam management procedures as described with respect to Figure 5 and Figure 6 , such as any combination of reference signal configuration, L1 measurement configuration, L1 measurement report configuration, and / or timing configuration. As shown by reference numeral 414, UE 120 may receive the RACH occasion information and send an uplink signal (e.g., a RACH using PRACH), as shown by reference numeral 414.

[0083] In some aspects, and as shown by reference numeral 416, network node 110 may send one or more reference signals, such as a channel state information reference signal (CSI-RS) and / or a tracking reference signal (TRS). As an example, network node 110 may send one or more reference signals at least in part based on the reference signal configuration and / or timing configuration indicated in the SSB and / or PDCCH transmission (e.g., using CORESET0). As part of a beam management procedure, the network node may repeat the transmission of the same reference signal using the same beam (e.g., where reference signal repetition is enabled), and UE 120 may perform a UE receive beam refinement procedure as part of the beam management procedure. For example, UE 120 may receive the repeated reference signal using different receive beam configurations. Alternatively or in addition, UE 120 may receive the reference signal at least in part based on the reference signal configuration and / or timing configuration indicated in the SSB and / or PDCCH transmission (e.g., using CORESET0).

[0084] In some aspects, as part of a beam management process, a network node may perform a network node transmission beam refinement process that includes the network node transmitting one or more reference signals using different transmission beam configurations and / or propagation directions (e.g., where reference signal repetition is disabled, at least in part based on a reference signal configuration, and / or at least in part based on a timing configuration). As part of the network node beam refinement process, UE 120 may receive different received reference signal transmissions using the same receive beam configuration. Alternatively or in addition, UE 120 may receive reference signal transmissions at least in part based on a reference signal configuration and / or a timing configuration. In some aspects, the UE may generate and transmit a measurement report to the network node, the measurement report being at least in part based on an L1 measurement configuration and / or an L1 measurement report configuration (e.g., as described with respect to second example 402). UE 120 may perform a time tracking refinement process and / or a frequency tracking refinement process at least in part based on the received reference signals.

[0085] Network node 110 may transmit UE-specific SIB1 PDSCH 418 at least in part based on a beam management process. For example, network node 110 may transmit UE-specific SIB1 PDSCH 418 at least in part based on using an updated and / or refined beam selected and / or calibrated by the beam management process. Thus, first example 400 enables network node 110 and / or UE120 to improve the signal quality of the beam used for transmitting and / or receiving UE-specific SIB1 PDSCH and / or additional communications. The improved signal quality and / or reduced amount of air interface resources may reduce receiver recovery errors, increase data throughput, and / or reduce data transmission latency.

[0086] Reference Figure 4B , second example 402 illustrates an example access process in which network node 110 and UE 120 perform a beam management process before network node 110 transmits UE-specific CORESET0 and UE-specific SIB1 PDSCH to UE 120. As shown by reference numeral 404, and as described with respect to first example 400, network node 110 may transmit multiple SSBs at least in part based on using multiple beams. In some aspects, network node 110 may indicate a RACH timing configuration in SSB 420 and as shown by reference numeral 422. Alternatively or in addition, the network node may indicate and / or include in the SSB information related to performing as described with respect to Figure 5 and Figure 6Information associated with the described beam management process, such as reference signal configuration, L1 measurement configuration, and L1 measurement report configuration and / or timing configuration. As shown by reference numeral 424, UE 120 may transmit a RACH (e.g., using a RACH opportunity and / or a PRACH) at least in part based on a beam associated with the SSB transmission selected by UE 120.

[0087] At least in part based on receiving a RACH and / or a PRACH from UE 120, as part of a beam management process (e.g., a network node transmits a beam refinement process and / or a UE receives a beam refinement process), network node 110 may transmit multiple reference signals, as shown by reference numeral 426. For illustration, the network node may repeat the transmission of the same reference signal using the same beam (e.g., where reference signal repetition is enabled), and UE 120 may perform a UE receive beam refinement process as part of the beam management process at least in part based on receiving these reference signals. Alternatively or in addition, as part of the network node beam refinement process, the network node may transmit one or more reference signals using different transmit beam configurations (e.g., where reference signal repetition is disabled), and UE 120 may receive different reference signal transmissions using the same receive beam configuration. The network node and / or the UE may transmit and / or receive reference signals at least in part based on the reference signal configuration and / or the timing configuration.

[0088] In some aspects, UE 120 may generate and transmit an L1 measurement report 428 (e.g., at least in part based on the L1 measurement configuration and / or the L1 measurement report configuration). For illustration, UE 120 may transmit the L1 measurement report 428 at least in part based on using the reporting opportunity indicated by the L1 measurement report configuration. Alternatively or in addition, UE 120 may generate a specific type of measurement result at least in part based on the L1 measurement configuration. In some aspects, UE 120 may generate the L1 measurement report at least in part based on receiving the reference signals shown by reference numeral 426.

[0089] At least in part based on receiving the L1 measurement result report 428, the network node may transmit an indication 430 of CORESET0 (e.g., in the MIB or PDCCH DCI). In some aspects, the network node may transmit the indication 430 of CORESET0 at least in part based on using a refined and / or updated beam selected as part of the beam management process.

[0090] As indicated by reference numeral 432, the network node 110 may transmit and the UE may receive an indication of the UE-specific SIB1 PDSCH 434. For example, the network node may transmit the PDCCH based at least in part on CORESET0 430 and indicate the configuration of the UE-specific SIB1 PDSCH 434 in the DCI of the PDCCH. Alternatively or in addition, the network node 110 may use the UE-specific SIB1 PDSCH 434 to transmit the UE-specific SIB1.

[0091] Performing a beam management process as part of an access process, such as a beam refinement process that selects a refinement of an existing beam (e.g., calibration and / or change in propagation direction) may enable the network node and / or the UE to transmit and / or receive the UE-specific SIB1 using a beam having improved signal quality relative to another beam used for transmitting the SSB. Alternatively or in addition, the network node and the UE may use a beam having improved signal quality for additional communication. The improved signal quality may reduce recovery errors at the receiver, increase data throughput, and / or reduce data transmission latency.

[0092] As indicated above, Figure 4A and Figure 4B are provided as examples. Other examples may be different from the examples described with respect to Figure 4A and Figure 4B described.

[0093] Figure 5 is a diagram illustrating example 500 of a wireless communication process between a network node (e.g., network node 110) and a UE (e.g., UE 120) in accordance with the present disclosure.

[0094] As indicated by reference numeral 510, the network node 110 may transmit and the UE 120 may receive one or more synchronization signals, such as one or more SSBs. In some aspects, the network node 110 may transmit the synchronization signals periodically. Alternatively or in addition, the network node 110 may use one or more beams to transmit the same synchronization signal. For example, the network node 110 may transmit the same SSB on multiple beams, and each beam may be configured to propagate in a different direction relative to other beams included in the multiple beams.

[0095] Sometimes, the network node 110 may include information in the synchronization signal. By way of illustration, the network node 110 may indicate any combination of reference signal configuration, L1 measurement configuration, L1 measurement report configuration, and / or timing configuration in the synchronization signal.

[0096] A reference signal configuration may specify a transmission configuration associated with the reference signal, such as frequency resources, time resources, and / or antenna port resources associated with the reference signal. An L1 measurement configuration may specify one or more measurement parameters, such as the type of measurement to be performed and / or the type of resources associated with the measurement (e.g., periodic, semi-persistent, and / or aperiodic). An L1 measurement report configuration may specify one or more report configurations associated with reporting measurement results, such as a reporting occasion (e.g., air interface resources for transmitting the report) and / or information to be included in the measurement report. The L1 measurement configuration and / or the L1 measurement report configuration may be at least partially based on a beam management process, such as a network node transmission beam refinement process associated with calibrating and / or refining a transmission beam of a network node and / or a UE receive beam refinement process associated with calibrating and / or refining a receive beam of UE 120.

[0097] A timing configuration may specify one or more timing delays associated with an access procedure. As an example, the timing configuration may specify a first timing delay between a reference signal transmission (e.g., by network node 110) and an L1 report transmission (e.g., by UE 120). Alternatively or in addition, the timing configuration may specify a second timing delay between a reference signal transmission and a CORESET0 transmission (e.g., PDCCH). In some aspects, the timing configuration may specify a third timing delay between a reference signal transmission and a UE-specific SIB1 PDSCH transmission, a fourth timing delay between an L1 report transmission and a UE-specific SIB1 PDSCH transmission, a fifth timing delay between a CORESET0 transmission and a first reference signal transmission, and / or a sixth timing delay between a PRACH transmission and a first reference signal transmission. Although described in Example 500 as a configuration indicated by network node 110, in other examples, a communication standard may specify the timing delay and / or the mapping between the timing delay and values and / or bits indicating the timing delay.

[0098] In some aspects, network node 110 may send and / or indicate any combination of reference signal configuration, L1 measurement configuration, L1 measurement report configuration, and / or timing configuration based at least in part on a bit field and / or value. By way of illustration, a communication standard may map the first bit and / or first value of a reference signal bit field to a first reference signal configuration, and map the second bit and / or second value of the reference signal bit field to a second reference signal configuration. As another example, a communication standard may map the first bit and / or third value of a reporting bit field to a first L1 measurement report configuration, and map the second bit and / or fourth value of the reporting bit field to a second L1 measurement report configuration. Network node 110 may set the bit in the reference signal bit field and / or the second bit in the reporting bit field of the SSB to indicate a particular reference signal configuration and / or a particular L1 measurement report configuration. In some aspects, network node 110 may set the reference signal field to a value that maps to a particular reference signal configuration, and / or set the reporting field to another value that maps to a particular L1 measurement configuration. Thus, network node 110 may indicate and / or send configuration information based at least in part on the mapping.

[0099] As shown by reference numeral 520, UE 120 may select a synchronization signal and / or SSB. For example, UE 120 is capable of receiving a single beam at a power level that meets a power threshold, and selects the single beam for recovering SSB information based at least in part on the single beam meeting the power threshold. That is, UE 120 may default select the single beam based at least in part on receiving only the single beam that meets the power threshold. As another example, UE 120 may receive multiple beams each of which meets the power threshold, and UE 120 may select a particular beam having the highest power level from the multiple beams for recovering SSB information (e.g., MIB and / or MSI). As yet another example, UE 120 may select a first beam that meets the power threshold (e.g., the first beam in time) to reduce the amount of time associated with recovering SSB information.

[0100] As indicated by reference numeral 530, the UE 120 may identify a CORESET0 configuration (e.g., in the MIB). Alternatively or in addition, the UE 120 may identify one or more PDCCH monitoring occasions (e.g., associated with CORESET0). For example, the UE 120 may recover SSB information at least in part based on a selected beam, and the recovered SSB information (e.g., MIB and / or MSI) may indicate a location and / or air interface resources associated with CORESET0. In some aspects, the UE 120 may identify PDCCH monitoring occasions at least in part based on air interface resources within CORESET0. Alternatively or in addition, the UE 120 may identify SIB1 PDSCH configuration at least in part based on using the CORESET0 configuration (e.g., in a PDCCH based at least in part on CORESET0).

[0101] As indicated by reference numeral 540, the network node 110 may transmit downlink communication (e.g., MIB or PDCCH), and the UE 120 may receive the downlink communication, which indicates PRACH parameters and / or RACH parameters, such as a PRACH preamble, time resources associated with a RACH occasion, and / or frequency resources associated with a RACH occasion. For example, the network node 110 may transmit a PDCCH as downlink communication at least in part based on using CORESET0. Alternatively or in addition, the network node 110 may indicate any combination of a reference signal configuration, an L1 measurement configuration, an L1 measurement report configuration, and / or a timing configuration in the downlink communication. The reference signal configuration, the L1 measurement configuration, the L1 measurement report configuration, and / or the timing configuration may be at least in part based on a beam management procedure (e.g., the network node transmits a beam refinement procedure and / or the UE receives a beam refinement procedure).

[0102] As indicated by reference numeral 550, the UE 120 may transmit a PRACH transmission, and the network node 110 may receive the PRACH transmission. For example, the UE 120 may transmit a RACH at least in part based on using a PRACH at a RACH occasion specified by the downlink communication. Alternatively or in addition, and as shown in example 500, the network node 110 may receive a RACH transmission and / or a PRACH transmission from the UE before transmitting a UE-specific SIB1 associated with the UE 120 (shown by reference numeral 570).

[0103] As shown by reference numeral 560, network node 110 and UE 120 may perform a beam management procedure. For illustration, network node 110 may transmit a reference signal (e.g., CSI-RS and / or TRS) that is at least partially based on the beam management procedure. In some aspects, network node 110 may transmit multiple reference signals (e.g., repeatedly transmit different reference signals or the same reference signal). As an example, network node 110 may transmit one or more reference signals at least partially based on a transmission configuration specified by the reference signal configuration. Alternatively or in addition, network node 110 and / or UE 120 may transmit and / or receive reference signals at least partially based on a derived transmission configuration. For example, network node 110 and / or UE 120 may identify a first transmission configuration and / or air interface resources associated with CORESET0, SSB, and / or RACH, such as bandwidth and / or bandwidth part, and derive a second transmission configuration for the reference signal (e.g., the same bandwidth part and / or the same bandwidth part).

[0104] Network node 110 and UE 120 may perform any combination of beam management procedures, such as a UE receive beam refinement procedure and / or a network node transmit beam refinement procedure. In some aspects, network node 110 may transmit one or more reference signals at least partially based on the type of beam management procedure, such as by repeatedly transmitting the same reference signal on the same beam at least partially based on the reference signal repetition being enabled (e.g., for a UE receive beam refinement procedure) or by transmitting reference signals on different beams at least partially based on the reference signal repetition being disabled for a network node transmit beam refinement procedure. In some aspects, network node 110 may transmit TRS using a transmission configuration that is at least partially based on UE 120 performing a time tracking refinement procedure and / or a frequency tracking refinement procedure, such as by using a specific carrier frequency and / or transmission periodicity.

[0105] As part of the beam management procedure, UE 120 may generate an L1 measurement report. In some aspects, UE 120 may generate the L1 measurement report based at least in part on an L1 measurement report configuration (e.g., indicated in an SSB and / or indicated in a PDCCH using CORESET0) and one or more reference signals. Alternatively or in addition, UE 120 may send the L1 measurement report to network node 110 (e.g., before receiving UE-specific SIB1). As an example, UE 120 may select a communication beam (e.g., for communicating with network node 110) based at least in part on a beam measurement procedure, such as a transmit communication beam for a transmission from network node 110. That is, UE 120 may select (transmit) a communication beam as a beam having higher (received) signal quality relative to other beams evaluated as part of a beam refinement procedure for network node beams. In some aspects, and as part of the beam management procedure, UE 120 may indicate the selection of the communication beam to network node 110. Network node 110 may send an acknowledgement of the selected communication beam and / or an instruction to use the selected communication beam, but in other examples, UE 120 may autonomously use the selected communication beam to receive and / or send one or more other communications with network node 110. That is, UE 120 may use the selected communication beam to perform additional communications with network node 110 without receiving an acknowledgement and / or instruction to use the selected communication beam.

[0106] As shown by reference numeral 570, network node 110 may send and UE 120 may receive an indication of a UE-specific SIB1 PDSCH (e.g., which is based at least in part on the SIB1 PDSCH configuration transmitted as described by reference numeral 530). For example, the network node may send the PDCCH using CORESET0 at least in part and indicate the UE-specific SIB1 PDSCH in the DCI of the PDCCH. In some aspects, network node 110 may send the indication based at least in part on the communication beam indicated by UE 120. Alternatively or in addition, UE 120 may use the communication beam to receive an indication of the UE-specific SIB1 PDSCH, which is based at least in part on receiving an instruction and / or acknowledgement to use the communication beam from network node 110, or autonomously without receiving the instruction and / or acknowledgement from network node 110.

[0107] Performing a beam management process as part of an access process, such as a beam refinement process, can enable a network node and / or a UE to transmit and / or receive UE-specific SIB1 using a beam that has improved signal quality relative to another beam used for transmitting SSBs. The network node and / or the UE may alternatively or in addition use this beam for additional communication. The improved signal quality can reduce recovery errors at the receiver, increase data throughput, and / or reduce data transmission latency.

[0108] As indicated above, Figure 5 is provided as an example. Other examples may be different from the example described with respect to Figure 5 the example described.

[0109] Figure 6 is a diagram illustrating example 600 of a wireless communication process between a network node (e.g., network node 110) and a UE (e.g., UE 120) in accordance with the present disclosure.

[0110] As shown by reference numeral 610, network node 110 may transmit and UE 120 may receive one or more synchronization signals, such as SSBs. In some aspects, network node 110 may transmit synchronization signals periodically. Alternatively or in addition, network node 110 may use one or more beams to transmit the same synchronization signal. Sometimes, network node 110 may include information in the synchronization signal and / or SSB. As an example, network node 110 may transmit and / or indicate in the SSB any combination of reference signal configuration, L1 measurement configuration, L1 measurement report configuration, and / or timing configuration as described above. In some aspects, the synchronization signal and / or SSB may indicate PRACH configuration and / or RACH configuration (e.g., PRACH preamble and / or RACH occasion).

[0111] As shown by reference numeral 520, and as described with respect to Figure 5 the example described, UE 120 may select a synchronization signal and / or SSB. Alternatively or in addition, as shown by reference numeral 620, UE 120 may identify PRACH parameters and / or RACH parameters at least in part based on the selected synchronization signal and / or the selected SSB. For example, UE 120 may recover the information transmitted in the MIB associated with the selected SSB, and the MIB may indicate PRACH parameters and / or RACH parameters. However, other fields of the SSB may alternatively or in addition indicate PRACH parameters and / or RACH parameters.

[0112] As shown by reference numeral 630, UE 120 may transmit a PRACH transmission (e.g., a RACH at least in part based on the PRACH transmission), and network node 110 may receive the PRACH transmission. As an example, UE 120 may asFigure 5 The PRACH transmission is sent as described by reference label 550. In some aspects, and as shown in example 600, the network node 110 may receive a PRACH transmission and / or a RACH transmission before sending the UE-specific SIB1 associated with the UE 120.

[0113] As shown by reference label 560, and as described with respect to Figure 5 The network node 110 and the UE 120 may perform a beam management process. By way of illustration, the network node 110 may send a reference signal (e.g., CSI-RS and / or TRS) that is at least partially based on the beam management process, such as by repeatedly sending multiple different reference signals and / or the same reference signal using the same beam and / or multiple different beams. The network node 110 may send the reference signal at least partially based on a transmission configuration specified by a reference signal configuration (e.g., indicated in the SSB and / or the MIB of the SSB). Alternatively or in addition, the network node 110 and / or the UE 120 may send and / or receive the reference signal at least partially based on a derived transmission configuration.

[0114] The network node 110 and the UE 120 may perform any combination of beam management processes, such as a UE receive beam refinement process and / or a network node transmit beam refinement process. In some aspects, the network node 110 may send the TRS using a transmission configuration that is at least partially based on the UE 120 performing a time tracking refinement process and / or a frequency tracking refinement process, such as by using a specific carrier frequency and / or transmission periodicity.

[0115] The UE 120 may generate an L1 measurement report (e.g., at least partially based on an L1 measurement configuration and / or an L1 measurement report configuration indicated in the SSB and one or more reference signals). The UE 120 may send an L1 measurement result report to the network node 110 (e.g., before receiving an indication of the UE-specific CORESET0 and / or the UE-specific SIB1). The UE 120 may select a communication beam (e.g., for communicating with the network node 110) at least partially based on a beam measurement process, such as by selecting a beam that has a higher signal quality relative to other beams evaluated as part of the beam management process. The UE 120 may indicate the selection of the communication beam to the network node 110, and the network node 110 may send an acknowledgement of the communication beam. In other examples, the UE 120 may autonomously use the communication beam to receive and / or send one or more other communications with the network node 110.

[0116] As indicated by reference numeral 640, network node 110 may send and UE 120 may receive an indication of UE-specific CORESET0. For illustration, network node 110 may send an indication of the CORESET0 configuration specific to UE 120. In some aspects, network node 110 may send the indication of UE-specific CORESET0 at least in part based on a communication beam selected by UE 120. Alternatively or in addition thereto, the network node may send at least in part based on a second communication (e.g., PDCCH) using UE-specific CORESET0. As described above, UE 120 may receive the indication of UE-specific CORESET0 and / or the second communication at least in part based on (the selected) communication beam without needing to receive an instruction and / or confirmation from network node 110 specifying the use of the communication beam.

[0117] As described with respect to Figure 5 and as indicated by reference numeral 570, network node 110 may send and UE 120 may receive an indication of UE-specific SIB1 PDSCH. As an example, network node 110 may send an instruction specifying the use of a communication beam to receive UE-specific SIB1 PDSCH, and UE 120 may receive UE-specific SIB1 PDSCH at least in part based on using the communication beam. Alternatively or in addition thereto, UE 120 may autonomously receive UE-specific SIB1 PDSCH without needing to receive an instruction from network node 110. In some aspects, UE 120 may receive UE-specific SIB1 PDSCH at least in part based on using UE-specific CORESET0.

[0118] Performing a beam management process as part of an access process, such as a beam refinement process, may enable the network node and / or UE to send and / or receive UE-specific SIB1 using a beam having improved signal quality relative to another beam used for transmitting the SSB. The network node and / or UE may alternatively or in addition use the beam for additional communication. The improved signal quality may reduce recovery errors at the receiver, increase data throughput, and / or reduce data transmission latency.

[0119] As indicated above, Figure 6 is provided as an example. Other examples may differ from the example described with respect to Figure 6 described.

[0120] Figure 7 is a diagram illustrating an example process 700, such as may be performed by a network node, in accordance with the present disclosure. Example process 700 is an example of operations performed by a network node (e.g., network node 110) associated with beam refinement for UE-specific access information.

[0121] AsFigure 7 As shown, in some aspects, process 700 may include receiving a RACH from the UE before transmitting the UE-specific SIB1 associated with the UE (block 710). For example, a network node (e.g., using communication manager 150 and / or receiving component 902, as Figure 9 shown) may receive a RACH from the UE before transmitting the UE-specific SIB1 associated with the UE, as described above.

[0122] As Figure 7 further shown, in some aspects, process 700 may include transmitting a reference signal before transmitting the UE-specific SIB1 and at least partially based on receiving the RACH, the reference signal being at least partially based on a beam management process (block 720). For example, a network node (e.g., using Figure 9 communication manager 150 and / or transmitting component 904 depicted) may transmit a reference signal before transmitting the UE-specific SIB1 and at least partially based on receiving the RACH, the reference signal being at least partially based on a beam management process, as described above.

[0123] Process 700 may include additional aspects, such as any individual aspect or any combination of aspects described below and / or in combination with one or more other processes described elsewhere herein.

[0124] In a first aspect, transmitting the reference signal includes transmitting the reference signal before transmitting the UE-specific CORESET0.

[0125] In a second aspect, transmitting the reference signal includes transmitting the reference signal at least partially based on the beam used for receiving the RACH.

[0126] In a third aspect, process 700 includes transmitting a reference signal configuration indication specifying a transmission configuration associated with the reference signal, and transmitting the reference signal includes transmitting the reference signal at least partially based on the transmission configuration.

[0127] In a fourth aspect, transmitting the reference signal configuration indication includes transmitting the reference signal configuration indication in the SSB.

[0128] In a fifth aspect, transmitting the reference signal configuration indication includes transmitting the reference signal configuration indication in CORESET0.

[0129] In a sixth aspect, process 700 includes transmitting an L1 measurement report configuration associated with the measurement reference signal.

[0130] In a seventh aspect, transmitting the L1 measurement report configuration includes transmitting the L1 measurement report configuration in at least one of the SSB or CORESET0.

[0131] In an eighth aspect, the beam management process includes a network node beam refinement process, and the L1 measurement report configuration is at least partially based on the network node beam refinement process.

[0132] In a ninth aspect, transmitting a reference signal includes transmitting the reference signal at least partially based on a transmission configuration associated with CORESET0, SSB, or RACH.

[0133] In a tenth aspect, the transmission configuration includes at least one of a bandwidth or a bandwidth part.

[0134] In an eleventh aspect, the beam management process includes a UE receive beam refinement process, and transmitting a reference signal includes: as part of the UE receive beam refinement process, transmitting the reference signal at least partially based on the reference signal repetition being enabled.

[0135] In a twelfth aspect, transmitting a reference signal includes transmitting the reference signal at least partially based on the reference signal repetition being disabled.

[0136] In a thirteenth aspect, the reference signal includes a tracking reference signal having a transmission configuration that is at least partially based on at least one of time tracking refinement performed by the UE or frequency tracking refinement performed by the UE.

[0137] In a fourteenth aspect, process 700 includes transmitting a timing configuration indication that specifies a timing delay between at least one of the following: reference signal transmission and L1 report transmission, reference signal transmission and CORESET0, reference signal transmission and UE-specific SIB1 PDSCH, L1 report transmission and CORESET0, L1 report transmission and UE-specific SIB1 PDSCH, CORESET0 and reference signal transmission, or physical random access channel and reference signal transmission.

[0138] In a fifteenth aspect, process 700 includes communicating with the UE at least partially based on a timing delay that is at least partially specified by a communication standard, the timing delay being between at least one of the following: reference signal transmission and L1 report transmission, reference signal transmission and CORESET0, reference signal transmission and UE-specific SIB1 PDSCH, L1 report transmission and CORESET0, L1 report transmission and UE-specific SIB1 PDSCH, CORESET0 and reference signal transmission, or physical random access channel and reference signal transmission.

[0139] Although Figure 7 illustrates example boxes of process 700, in some aspects, process 700 may include Figure 7fewer boxes, different boxes, or boxes arranged in a different manner than those depicted in the figures. Additionally or alternatively, two or more boxes of process 700 may be performed in parallel.

[0140] Figure 8 is a diagram illustrating an example process 800 performed, for example, by a UE in accordance with the present disclosure. Example process 800 is an example in which a UE (e.g., UE 120) performs operations associated with beam refinement for UE-specific access information.

[0141] As Figure 8 shown, in some aspects, process 800 may include transmitting a RACH using at least an SSB-based beam before receiving UE-specific SIB1 (block 810). For example, a UE (e.g., using communication manager 140 and / or transmission component 1004, as Figure 10 shown) may transmit a RACH using at least an SSB-based beam before receiving UE-specific SIB1, as described above.

[0142] As Figure 8 further shown, in some aspects, process 800 may include receiving a reference signal before receiving UE-specific SIB1 and at least partially based on transmitting the RACH, the reference signal being at least partially based on a beam management process (block 820). For example, a UE (e.g., using Figure 10 communication manager 140 and / or receiving component 1002 depicted) may receive a reference signal before receiving UE-specific SIB1 and at least partially based on transmitting the RACH, the reference signal being at least partially based on a beam management process, as described above.

[0143] Process 800 may include additional aspects, such as any single aspect or any combination of aspects described below and / or in combination with one or more other processes described elsewhere herein.

[0144] In a first aspect, receiving the reference signal includes receiving the reference signal before receiving UE-specific CORESET0.

[0145] In a second aspect, receiving the reference signal includes receiving the reference signal at least partially based on the beam used for receiving the RACH.

[0146] In a third aspect, process 800 includes receiving a reference signal configuration indication specifying a transmission configuration associated with the reference signal, and receiving the reference signal includes receiving the reference signal at least partially based on the transmission configuration.

[0147] In a fourth aspect, receiving the reference signal configuration indication includes receiving the reference signal configuration indication in an SSB.

[0148] In a fifth aspect, receiving a reference signal configuration indication includes receiving the reference signal configuration indication in CORESET0.

[0149] In a sixth aspect, procedure 800 includes receiving an L1 measurement report configuration associated with a measurement reference signal.

[0150] In a seventh aspect, receiving an L1 measurement report configuration includes receiving the L1 measurement report configuration in at least one of SSB or CORESET0.

[0151] In an eighth aspect, a beam management procedure includes a network node beam refinement procedure, and the L1 measurement report configuration is at least partially based on the network node beam refinement procedure.

[0152] In a ninth aspect, procedure 800 includes generating an L1 measurement report at least partially based on the L1 measurement report configuration and a reference signal, and transmitting the L1 measurement report before receiving a UE-specific SIB1.

[0153] In a tenth aspect, receiving a reference signal includes receiving the reference signal at least partially based on using a transmission configuration associated with a CORESET0 configuration, an SSB configuration associated with an SSB, or a RACH configuration associated with a RACH.

[0154] In an eleventh aspect, the transmission configuration includes at least one of a bandwidth or a bandwidth part.

[0155] In a twelfth aspect, a beam management procedure includes a UE receive beam refinement procedure, and receiving a reference signal includes receiving the reference signal at least partially based on a reference signal repetition being enabled as part of the UE receive beam refinement procedure.

[0156] In a thirteenth aspect, receiving a reference signal includes receiving the reference signal at least partially based on a reference signal repetition being disabled.

[0157] In a fourteenth aspect, the reference signal includes a tracking reference signal having a transmission configuration that is at least partially based on at least one of time tracking refinement performed by the UE or frequency tracking refinement performed by the UE.

[0158] In a fifteenth aspect, procedure 800 includes receiving a timing configuration indication that specifies a timing delay between at least one of the following: reference signal transmission and L1 report transmission, reference signal transmission and CORESET0, reference signal transmission and UE-specific SIB1 PDSCH, L1 report transmission and CORESET0, L1 report transmission and UE-specific SIB1 PDSCH, CORESET0 and reference signal transmission, or physical random access channel and reference signal transmission.

[0159] In a sixteenth aspect, process 800 includes communicating with a network node at least in part based on a timing delay at least in part specified by a communication standard, the timing delay being between at least one of: reference signal transmission and L1 report transmission, reference signal transmission and CORESET0, reference signal transmission and UE-specific SIB1 PDSCH, L1 report transmission and CORESET0, L1 report transmission and UE-specific SIB1 PDSCH, CORESET0 and reference signal transmission, or physical random access channel and reference signal transmission.

[0160] In a seventeenth aspect, a beam management process includes a network node beam refinement process, a reference signal repetition associated with a reference signal is disabled, and process 800 includes: selecting a communication beam at least in part based on the network node beam refinement process before receiving UE-specific SIB1, indicating the communication beam to the network node before receiving UE-specific SIB1, and receiving communication using the communication beam at least in part based on UE-specific SIB1 PDSCH.

[0161] In an eighteenth aspect, the communication is a first communication, and process 800 includes receiving a second communication using the communication beam at least in part based on UE-specific CORESET0.

[0162] In a nineteenth aspect, receiving communication using a communication beam includes receiving communication using the communication beam without receiving an instruction from the network node specifying the use of the communication beam.

[0163] In a twentieth aspect, process 800 includes receiving an instruction from the network node specifying the use of a communication beam to receive UE-specific SIB1 PDSCH, and receiving communication using the communication beam at least in part based on receiving the instruction from the network node.

[0164] Although Figure 8 example boxes of process 800 are shown, in some aspects, process 800 may include additional boxes, fewer boxes, different boxes, or boxes arranged in a different manner compared to those depicted in Figure 8 Additionally or alternatively, two or more of the boxes of process 800 may be executed in parallel.

[0165] Figure 9FIG. 0 is a diagram of an example apparatus 900 for wireless communication in accordance with the present disclosure. The apparatus 900 may be a network node, or a network node may include the apparatus 900. In some aspects, the apparatus 900 includes a receiving component 902 and a transmitting component 904, which may communicate with each other (e.g., via one or more buses and / or one or more other components). As shown, the apparatus 900 may communicate with another apparatus 906 (such as a UE, a base station, or another wireless communication device) using the receiving component 902 and the transmitting component 904. As further shown, the apparatus 900 may include a communication manager 150. Among other examples, the communication manager 150 may include one or more access manager components 908.

[0166] In some aspects, the apparatus 900 may be configured to perform one or more operations described herein in connection with Figures 3 to 8 Additional or alternatively, the apparatus 900 may be configured to perform one or more processes described herein, such as Figure 7 process 700. In some aspects, Figure 9 the apparatus 900 and / or one or more components shown may include one or more components of the network node described in connection with Figure 2 Additional or alternatively, Figure 9 one or more components shown may be implemented within one or more components described in connection with Figure 2 Additional or alternatively, one or more components in a set of components may be at least partially implemented as software stored in a memory. For example, a component (or a portion of a component) may be implemented as instructions or code stored in a non-transitory computer-readable medium and executable by a controller or processor to perform the functions or operations of the component.

[0167] The receiving component 902 may receive communications from the apparatus 906, such as reference signals, control information, data communications, or combinations thereof. The receiving component 902 may provide the received communications to one or more other components of the apparatus 900. In some aspects, the receiving component 902 may perform signal processing (such as filtering, amplifying, demodulating, analog-to-digital conversion, demultiplexing, deinterleaving, demapping, equalizing, interference cancellation, or decoding, etc.) on the received communications and may provide the processed signals to one or more other components of the apparatus 900. In some aspects, the receiving component 902 may include one or more antennas, modems, demodulators, MIMO detectors, receiving processors, controller / processors, memories, or combinations thereof of the network node described in connection with Figure 2

[0168] ​The transmitting component 904 may send communications to the device 906, such as reference signals, control information, data communications, or combinations thereof. In some aspects, one or more other components of the device 900 may generate communications and may provide the generated communications to the transmitting component 904 for transmission to the device 906. In some aspects, the transmitting component 904 may perform signal processing on the generated communications (such as filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or coding, etc.), and may send the processed signal to the device 906. In some aspects, the transmitting component 904 may include one or more antennas, modems, modulators, transmit MIMO processors, transmit processors, controllers / processors, memories, or combinations thereof of the network node described in conjunction with Figure 2 In some aspects, the transmitting component 904 may be co-located with the receiving component 902 in a transceiver.

[0169] The access manager component 908 may receive a RACH from the UE via the receiving component 902 and before transmitting the UE-specific SIB1 associated with the UE. The transmitting component 904 may transmit a reference signal before transmitting the UE-specific SIB1 and at least partially based on receiving the RACH, the reference signal being at least partially based on a beam management procedure.

[0170] The access manager component 908 may transmit a reference signal configuration indication via the transmitting component 904, the reference signal configuration indication specifying a transmission configuration associated with the reference signal. Alternatively or in addition, the access manager component 908 may transmit an L1 measurement report configuration associated with a measurement reference signal via the transmitting component 904. In some aspects, the access manager component 908 may transmit a timing configuration indication via the transmitting component 904, the timing configuration indication specifying a timing delay between at least one of the following: reference signal transmission and L1 report transmission, reference signal transmission and CORESET0, reference signal transmission and UE-specific SIB1 PDSCH, L1 report transmission and CORESET0, L1 report transmission and UE-specific SIB1 PDSCH, CORESET0 and reference signal transmission, or physical random access channel and reference signal transmission.

[0171] The access manager component 908 may communicate with the UE at least partially based on a timing delay at least partially specified by a communication standard, the timing delay being between at least one of the following: reference signal transmission and L1 report transmission, reference signal transmission and CORESET0, reference signal transmission and UE-specific SIB1 PDSCH, L1 report transmission and CORESET0, L1 report transmission and UE-specific SIB1 PDSCH, CORESET0 and reference signal transmission, or physical random access channel and reference signal transmission.

[0172] Figure 9 The number and arrangement of the components shown are provided as an example. In fact, there may be additional components, fewer components, different components, or components arranged in a different manner compared to Figure 9 those shown. Additionally, Figure 9 two or more of the components shown may be implemented within a single component, or Figure 9 a single component shown may be implemented as multiple distributed components. Additionally or alternatively, Figure 9 a collection of the components (one or more components) shown may perform one or more functions described as being performed by Figure 9 another collection of the components shown.

[0173] Figure 10 is a diagram of an example apparatus 1000 for wireless communication in accordance with the present disclosure. The apparatus 1000 may be a UE, or a UE may include the apparatus 1000. In some aspects, the apparatus 1000 includes a receiving component 1002 and a transmitting component 1004, which may communicate with each other (e.g., via one or more buses and / or one or more other components). As shown, the apparatus 1000 may communicate with another apparatus 1006 (such as a UE, a base station, or another wireless communication device) using the receiving component 1002 and the transmitting component 1004. As further shown, the apparatus 1000 may include a communication manager 140. Among other examples, the communication manager 140 may include one or more access manager components 1008.

[0174] In some aspects, the apparatus 1000 may be configured to perform one or more operations described herein in connection with Figures 3 to 8 those described. Additionally or alternatively, the apparatus 1000 may be configured to perform one or more processes described herein, such as Figure 8 process 800. In some aspects, Figure 10 the apparatus 1000 and / or one or more components shown may include one or more components of the UE described in connection with Figure 2 those described. Additionally or alternatively, Figure 10 one or more of the components shown may be implemented within one or more of the components described in connection with Figure 2 those described. Additionally or alternatively, one or more components in a collection of components may be at least partially implemented as software stored in a memory. For example, a component (or a portion of a component) may be implemented as instructions or code stored in a non-transitory computer-readable medium and executable by a controller or processor to perform the functions or operations of the component.

[0175] The receiving component 1002 may receive communications from the device 1006, such as reference signals, control information, data communications, or combinations thereof. The receiving component 1002 may provide the received communications to one or more other components of the device 1000. In some aspects, the receiving component 1002 may perform signal processing on the received communications (such as filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, demapping, equalization, interference cancellation, or decoding, etc.), and may provide the processed signals to one or more other components of the device 1000. In some aspects, the receiving component 1002 may include one or more antennas, modems, demodulators, MIMO detectors, receiving processors, controllers / processors, memories, or combinations thereof of the UE as described in conjunction with Figure 2 the UE.

[0176] The transmitting component 1004 may send communications to the device 1006, such as reference signals, control information, data communications, or combinations thereof. In some aspects, one or more other components of the device 1000 may generate communications and may provide the generated communications to the transmitting component 1004 for transmission to the device 1006. In some aspects, the transmitting component 1004 may perform signal processing on the generated communications (such as filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding, etc.), and may send the processed signals to the device 1006. In some aspects, the transmitting component 1004 may include one or more antennas, modems, modulators, transmitting MIMO processors, transmitting processors, controllers / processors, memories, or combinations thereof of the UE as described in conjunction with Figure 2 the UE. In some aspects, the transmitting component 1004 may be co-located with the receiving component 1002 in a transceiver.

[0177] The access manager component 1008 may send a RACH through the transmitting component 1004 and using at least partially SSB-based beams before receiving the UE-specific SIB1. The receiving component 1002 may receive a reference signal before receiving the UE-specific SIB1 and at least partially based on the transmitted RACH, the reference signal being at least partially based on a beam management process.

[0178] The access manager component 1008 may receive a reference signal configuration indication through the receiving component 1002, the reference signal configuration indication specifying a transmission configuration associated with the reference signal. Alternatively or in addition, the access manager component 1008 may receive an L1 measurement report configuration associated with a measurement reference signal through the receiving component 1002.

[0179] The access manager component 1008 may generate an L1 measurement report at least in part based on the L1 measurement report configuration and reference signals. In some aspects, the access manager component 1008 may send the L1 measurement report via the sending component 1004 and before receiving the UE-specific SIB1.

[0180] The access manager component 1008 may receive a timing configuration indication via the receiving component 1002, the timing configuration indication specifying a timing delay between at least one of the following: reference signal transmission and L1 report transmission, reference signal transmission and CORESET0, reference signal transmission and UE-specific SIB1 PDSCH, L1 report transmission and CORESET0, L1 report transmission and UE-specific SIB1 PDSCH, CORESET0 and reference signal transmission, or physical random access channel and reference signal transmission.

[0181] The access manager component 1008 may communicate with a network node at least in part based on a timing delay at least in part specified by a communication standard, the timing delay being between at least one of the following: reference signal transmission and L1 report transmission, reference signal transmission and CORESET0, reference signal transmission and UE-specific SIB1 PDSCH, L1 report transmission and CORESET0, L1 report transmission and UE-specific SIB1 PDSCH, CORESET0 and reference signal transmission, or physical random access channel and reference signal transmission.

[0182] The access manager component 1008 may receive, via the receiving component 1002, an instruction from a network node specifying the use of a communication beam to receive the UE-specific SIB1 PDSCH. In some aspects, the receiving component 1002 may use the communication beam and receive communication at least in part based on the instruction received from the network node.

[0183] Figure 10 The number and arrangement of the components shown are provided as an example. In fact, there may be additional components, fewer components, different components, or components arranged in a different manner compared to Figure 10 those shown. Additionally, Figure 10 two or more of the components shown may be implemented within a single component, or Figure 10 a single component shown may be implemented as multiple distributed components. Additionally or alternatively, Figure 10 a collection of the components (one or more components) shown may perform one or more functions described as being performed by Figure 10 another collection of the components shown.

[0184] An overview of some aspects of the present disclosure is provided below:

[0185] Aspect 1: A method for wireless communication performed by an apparatus of a network node, the method comprising: receiving a random access channel (RACH) from a user equipment (UE) before transmitting a user equipment dedicated (UE-dedicated) system information block type 1 (SIB1) associated with the UE; and transmitting a reference signal before transmitting the UE-dedicated SIB1 and at least partially based on receiving the RACH, the reference signal being at least partially based on a beam management process.

[0186] Aspect 2: The method according to aspect 1, wherein transmitting the reference signal comprises: transmitting the reference signal before transmitting a UE-dedicated control resource set 0 (CORESET0).

[0187] Aspect 3: The method according to aspect 1 or aspect 2, wherein transmitting the reference signal comprises: transmitting the reference signal at least partially based on a beam used for receiving the RACH.

[0188] Aspect 4: The method according to any one of aspects 1 to 3, the method further comprising: transmitting a reference signal configuration indication that specifies a transmission configuration associated with the reference signal, wherein transmitting the reference signal comprises: transmitting the reference signal at least partially based on the transmission configuration, wherein transmitting the reference signal comprises: transmitting the reference signal at least partially based on the transmission configuration.

[0189] Aspect 5: The method according to aspect 4, wherein transmitting the reference signal configuration indication comprises: transmitting the reference signal configuration indication in a synchronization system block (SSB).

[0190] Aspect 6: The method according to aspect 4, wherein transmitting the reference signal configuration indication comprises: transmitting the reference signal configuration indication in a control resource set 0 (CORESET0).

[0191] Aspect 7: The method according to any one of aspects 1 to 6, the method further comprising: transmitting a layer 1 measurement report configuration associated with measuring the reference signal.

[0192] Aspect 8: The method according to aspect 7, wherein transmitting the layer 1 measurement report configuration comprises: transmitting the layer 1 measurement report configuration in at least one of the following: a synchronization system block (SSB), or a control resource set 0 (CORESET0).

[0193] Aspect 9: The method according to aspect 7 or aspect 8, wherein the beam management process comprises a network node beam refinement process, and wherein the layer 1 measurement report configuration is at least partially based on the network node beam refinement process.

[0194] Aspect 10: The method according to any one of Aspects 1 to 9, wherein transmitting the reference signal comprises: transmitting the reference signal at least in part based on a transmission configuration associated with Control Resource Set 0 (CORESET0), Synchronization System Block (SSB), or the Random Access Channel (RACH).

[0195] Aspect 11: The method according to Aspect 10, wherein the transmission configuration comprises at least one of the following: bandwidth, or bandwidth part.

[0196] Aspect 12: The method according to any one of Aspects 1 to 11, wherein the beam management process comprises the UE receiving a beam refinement process, and wherein transmitting the reference signal comprises: transmitting the reference signal at least in part based on reference signal repetition being enabled as part of the UE receiving the beam refinement process.

[0197] Aspect 13: The method according to any one of Aspects 1 to 12, wherein transmitting the reference signal comprises: transmitting the reference signal at least in part based on reference signal repetition being disabled.

[0198] Aspect 14: The method according to any one of Aspects 1 to 13, wherein the reference signal comprises a Tracking Reference Signal having a transmission configuration that is at least in part based on at least one of the following: time tracking refinement performed by the UE, or frequency tracking refinement performed by the UE.

[0199] Aspect 15: The method according to any one of Aspects 1 to 14, the method further comprising: transmitting a timing configuration indication that specifies a timing delay between at least one of the following: reference signal transmission and layer 1 report transmission, the reference signal transmission and Control Resource Set 0 (CORESET0), the reference signal transmission and the UE-specific SIB1 Physical Downlink Shared Channel (PDSCH), the layer 1 report transmission and the CORESET0, the layer 1 report transmission and the UE-specific SIB1 PDSCH, the CORESET0 and the reference signal transmission, or the Physical Random Access Channel and the reference signal transmission.

[0200] Aspect 16: The method according to any one of Aspects 1 to 15, the method further comprising: communicating with the UE at least in part based on a timing delay at least in part specified by a communication standard, the timing delay being between at least one of: reference signal transmission and layer 1 report transmission, the reference signal transmission and control resource set 0 (CORESET0), the reference signal transmission and UE-specific SIB1 physical downlink shared channel (PDSCH), the layer 1 report transmission and the CORESET0, the layer 1 report transmission and the UE-specific SIB1 PDSCH, the CORESET0 and the reference signal transmission, or physical random access channel and the reference signal transmission.

[0201] Aspect 17: A method of wireless communication performed by a device of a user equipment (UE), the method comprising: transmitting a random access channel (RACH) using a beam at least in part based on a synchronization signal block (SSB) before receiving a UE-specific system information block type 1 (SIB1); and receiving a reference signal at least in part based on transmitting the RACH and before receiving the UE-specific SIB1, the reference signal being at least in part based on a beam management process.

[0202] Aspect 18: The method according to Aspect 17, wherein receiving the reference signal comprises: receiving the reference signal before receiving UE-specific control resource set 0 (CORESET0).

[0203] Aspect 19: The method according to Aspect 17 or 18, wherein receiving the reference signal comprises: receiving the reference signal at least in part based on the beam used for receiving the RACH.

[0204] Aspect 20: The method according to any one of Aspects 17 to 19, the method further comprising: receiving a reference signal configuration indication that specifies a transmission configuration associated with the reference signal, wherein receiving the reference signal comprises: receiving the reference signal at least in part based on the transmission configuration, wherein receiving the reference signal comprises: receiving the reference signal at least in part based on the transmission configuration.

[0205] Aspect 21: The method according to Aspect 20, wherein receiving the reference signal configuration indication comprises: receiving the reference signal configuration indication in the SSB.

[0206] Aspect 22: The method according to Aspect 20 or 21, wherein receiving the reference signal configuration indication comprises: receiving the reference signal configuration indication in control resource set 0 (CORESET0).

[0207] Aspect 23: The method according to any one of aspects 17 to 22, the method further comprising: receiving a layer 1 measurement report configuration associated with measuring the reference signal.

[0208] Aspect 24: The method according to aspect 23, wherein receiving the layer 1 measurement report configuration comprises: receiving the layer 1 measurement report configuration in at least one of the following: the SSB, or control resource set 0 (CORESET0).

[0209] Aspect 25: The method according to aspect 23 or aspect 24, wherein the beam management process comprises a network node beam refinement process, and wherein the layer 1 measurement report configuration is at least partially based on the network node beam refinement process.

[0210] Aspect 26: The method according to any one of aspects 23 to 25, the method further comprising: generating a layer 1 measurement report at least partially based on the layer 1 measurement report configuration and the reference signal; and transmitting the layer 1 measurement report before receiving the UE-specific SIB1.

[0211] Aspect 27: The method according to any one of aspects 17 to 26, wherein receiving the reference signal comprises: receiving the reference signal at least partially based on using a transmission configuration associated with a control resource set 0 (CORESET0) configuration, an SSB configuration associated with the SSB, or a RACH configuration associated with the RACH.

[0212] Aspect 28: The method according to aspect 27, wherein the transmission configuration comprises at least one of the following: bandwidth, or bandwidth part.

[0213] Aspect 29: The method according to any one of aspects 17 to 28, wherein the beam management process comprises a UE receive beam refinement process, and wherein receiving the reference signal comprises: receiving the reference signal at least partially based on a reference signal repetition being enabled as part of the UE receive beam refinement process.

[0214] Aspect 30: The method according to any one of aspects 17 to 29, wherein receiving the reference signal comprises: receiving the reference signal at least partially based on a reference signal repetition being disabled.

[0215] Aspect 31: The method according to any one of aspects 17 to 30, wherein the reference signal comprises a tracking reference signal having a transmission configuration that is at least partially based on at least one of the following: time tracking refinement performed by the UE, or frequency tracking refinement performed by the UE.

[0216] Aspect 32: The method according to any one of aspects 17 to 31, the method further comprising: receiving a timing configuration indication specifying a timing delay between at least one of: reference signal transmission and layer 1 report transmission, the reference signal transmission and control resource set 0 (CORESET0), the reference signal transmission and UE-specific SIB1 physical downlink shared channel (PDSCH), the layer 1 report transmission and the CORESET0, the layer 1 report transmission and the UE-specific SIB1 PDSCH, the CORESET0 and the reference signal transmission, or physical random access channel and the reference signal transmission.

[0217] Aspect 33: The method according to any one of aspects 17 to 32, the method further comprising: communicating with a network node at least in part based on a timing delay at least in part specified by a communication standard, the timing delay being between at least one of: reference signal transmission and layer 1 report transmission, the reference signal transmission and control resource set 0 (CORESET0), the reference signal transmission and UE-specific SIB1 physical downlink shared channel (PDSCH), the layer 1 report transmission and the CORESET0, the layer 1 report transmission and the UE-specific SIB1 PDSCH, the CORESET0 and the reference signal transmission, or physical random access channel and the reference signal transmission.

[0218] Aspect 34: The method according to any one of aspects 17 to 33, wherein the beam management process includes a network node beam refinement process, wherein reference signal repetition associated with the reference signal is disabled, and the method further comprises: selecting a communication beam at least in part based on the network node beam refinement process before receiving the UE-specific SIB1; indicating the communication beam to the network node before receiving the UE-specific SIB1; and receiving communication at least in part based on the UE-specific SIB1 physical downlink shared channel (PDSCH) using the communication beam.

[0219] Aspect 35: The method according to aspect 34, wherein the communication is a first communication, and the method further comprises: receiving a second communication at least in part based on UE-specific control resource set 0 (CORESET0) using the communication beam.

[0220] Aspect 36: The method according to aspect 34 or aspect 35, wherein receiving the communication using the communication beam includes: receiving the communication using the communication beam without receiving an instruction from a network node specifying the use of the communication beam.

[0221] Aspect 37: The method according to aspect 34 or aspect 35, the method further comprising: receiving, from a network node, an instruction specifying the use of a communication beam to receive the UE-specific SIB1 PDSCH, wherein receiving the communication using the communication beam is at least partially based on receiving the instruction from the network node.

[0222] Aspect 38: An apparatus for wireless communication at a device, the apparatus comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform the method according to one or more of aspects 1 to 16.

[0223] Aspect 39: An apparatus for wireless communication at a device, the apparatus comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform the method according to one or more of aspects 17 to 37.

[0224] Aspect 40: A device for wireless communication, the device comprising: a memory; and one or more processors coupled to the memory, the one or more processors configured to perform the method according to one or more of aspects 1 to 16.

[0225] Aspect 41: A device for wireless communication, the device comprising a memory and one or more processors coupled to the memory, the one or more processors configured to perform the method according to one or more of aspects 17 to 37.

[0226] Aspect 42: An apparatus for wireless communication, the apparatus comprising at least one component for performing the method according to one or more of aspects 1 to 16.

[0227] Aspect 43: An apparatus for wireless communication, the apparatus comprising at least one component for performing the method according to one or more of aspects 17 to 37.

[0228] Aspect 44: A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by a processor to perform the method according to one or more of aspects 1 to 16.

[0229] Aspect 45: A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by a processor to perform the method according to one or more of aspects 17 to 37.

[0230] Aspect 46: A non-transitory computer-readable medium storing an instruction set for wireless communication, the instruction set including one or more instructions that, when executed by one or more processors of a device, cause the device to perform the method according to one or more of Aspects 1 to 16.

[0231] Aspect 47: A non-transitory computer-readable medium storing an instruction set for wireless communication, the instruction set including one or more instructions that, when executed by one or more processors of a device, cause the device to perform the method according to one or more of Aspects 17 to 37.

[0232] 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 obtained from practice of the aspects.

[0233] As used herein, the term "component" is intended to be broadly construed as hardware and / or a combination of hardware and software. Whether referred to as software, firmware, middleware, microcode, hardware description language, or otherwise, "software" shall be broadly construed to mean instructions, instruction sets, code, code segments, program code, programs, subprograms, software modules, applications, software applications, software packages, routines, subroutines, objects, executable files, execution threads, processes, and / or functions, etc. As used herein, a "processor" is implemented by hardware and / or a combination of hardware and software. It will be apparent that the systems and / or methods described herein may be implemented in different forms of hardware and / or combinations of hardware and software. The actual specific control hardware or software code for implementing these systems and / or methods does not limit the aspects. Thus, the operation and behavior of the systems and / or methods are not described herein with reference to specific software code, as those skilled in the art will understand that the software and hardware can be designed at least in part based on the description herein to implement the systems and / or methods.

[0234] As used herein, depending on the context, "meeting 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.

[0235] Although specific combinations of features are recited in the claims and / or disclosed in the specification, these combinations are not intended to limit the disclosure of each aspect. Many of these features may be combined in ways not specifically recited in the claims and / or not disclosed in the specification. The disclosure of each aspect includes each dependent claim in combination with every other claim in the set of claims. As used herein, the phrase referring to a list of items “at least one of” refers to any combination of those items (which includes a single member). By way of example, “at least one of a, b, or c” is intended to cover a, b, c, a + b, a + c, b + c, and a + b + c, as well as any combination with multiple of the same element (e.g., a + a, a + a + a, a + a + b, a + a + c, a + b + b, a + c + c, b + b, b + b + b, b + b + c, c + c, and c + c + c, or any other ordering of a, b, and c).

[0236] Any element, act, or instruction used herein should not be construed as critical or essential unless explicitly so described. Further, as used herein, the article “a” is intended to include one or more items and may be used interchangeably with “one or more.” Additionally, as used herein, the article “the” is intended to include one or more of the item(s) mentioned in connection with the article “the” and may be used interchangeably with “one or more.” Further, as used herein, the terms “set” and “group” are intended to include one or more items and may be used interchangeably with “one or more.” If only intending to refer to a single item, the phrase “only one” or similar language will be used. Further, as used herein, the terms “has,” “owns,” “possesses,” etc. are intended to be open-ended terms that do not limit the element(s) they modify (e.g., an element having A may also have B). Further, the phrase “based on” is intended to mean “at least partially based on” unless otherwise explicitly stated. Further, as used herein, the term “or” when used in a series is intended to be open-ended and may be used interchangeably with “and / or” unless otherwise clearly stated (e.g., if used in conjunction with “either” or “only one”).

Claims

1. An apparatus for wireless communication at a network node, the apparatus comprising: a memory; and one or more processors coupled to the memory and configured to cause the apparatus to: receive a random access channel (RACH) from the UE before transmitting a user equipment (UE)-specific system information block type 1 (SIB1) associated with the UE; and transmit a reference signal before transmitting the UE-specific SIB1 and at least partially based on receiving the RACH, the reference signal being at least partially based on a beam management process.

2. The apparatus according to claim 1, wherein, in order to transmit the reference signal, the one or more processors are configured to cause the apparatus to: transmit the reference signal before transmitting UE-specific control resource set 0 (CORESET0).

3. The apparatus according to claim 1, wherein, in order to transmit the reference signal, the one or more processors are configured to cause the apparatus to: transmit the reference signal at least partially based on the beam used for receiving the RACH.

4. The apparatus according to claim 1, wherein the one or more processors are further configured to: transmit a reference signal configuration indication that specifies a transmission configuration associated with the reference signal, wherein, in order to transmit the reference signal, the one or more processors are configured to cause the apparatus to: transmit the reference signal at least partially based on the transmission configuration.

5. The apparatus according to claim 4, wherein, in order to transmit the reference signal configuration indication, the one or more processors are configured to cause the apparatus to: transmit the reference signal configuration indication in a synchronization system block (SSB).

6. The apparatus according to claim 4, wherein, in order to transmit the reference signal configuration indication, the one or more processors are configured to cause the apparatus to: transmit the reference signal configuration indication in control resource set 0 (CORESET0).

7. The apparatus according to claim 1, wherein the one or more processors are further configured to: transmit a layer 1 measurement report configuration associated with measuring the reference signal.

8. The apparatus according to claim 7, wherein, in order to transmit the layer 1 measurement report configuration, the one or more processors are configured to cause the apparatus to: transmit the layer 1 measurement report configuration in at least one of the following: a synchronization system block (SSB), or control resource set 0 (CORESET0).

9. The apparatus according to claim 1, wherein the reference signal comprises a tracking reference signal having a transmission configuration that is at least partially based on at least one of the following: time tracking refinement performed by the UE, or frequency tracking refinement performed by the UE.

10. The apparatus according to claim 1, wherein the one or more processors are further configured to: transmit a timing configuration indication that specifies a timing delay between at least one of the following: reference signal transmission and layer 1 report transmission, The reference signal transmission and control resource set 0 (CORESET0), The reference signal transmission and the UE-specific system information block type 1 (SIB1) physical downlink shared channel (PDSCH), The layer 1 report transmission and the CORESET0, The layer 1 report transmission and the UE-specific SIB1 PDSCH, The CORESET0 and the reference signal transmission, or The physical random access channel and the reference signal transmission.

11. An apparatus for wireless communication at a user equipment, the apparatus comprising: a memory; and one or more processors coupled to the memory, the one or more processors being configured to: Before receiving the user equipment-specific (UE-specific) system information block type 1 (SIB1), transmit a random access channel (RACH) using a beam at least partially based on a synchronization signal block (SSB); and Before receiving the UE-specific SIB1 and at least partially based on transmitting the RACH, receive a reference signal, the reference signal being at least partially based on a beam management procedure.

12. The apparatus according to claim 11, wherein in order to receive the reference signal, the one or more processors are configured to cause the apparatus to: Receive the reference signal before receiving the UE-specific control resource set 0 (CORESET0).

13. The apparatus according to claim 11, wherein in order to receive the reference signal, the one or more processors are configured to cause the apparatus to: Receive the reference signal at least partially based on the beam used for transmitting the RACH.

14. The apparatus according to claim 11, wherein the one or more processors are further configured to: Receive a reference signal configuration indication that specifies a transmission configuration associated with the reference signal, wherein in order to receive the reference signal, the one or more processors are configured to cause the apparatus to: Receive the reference signal at least partially based on the transmission configuration.

15. The apparatus according to claim 14, wherein in order to receive the reference signal configuration indication, the one or more processors are configured to cause the apparatus to: Receive the reference signal configuration indication in the SSB.

16. The apparatus according to claim 14, wherein in order to receive the reference signal configuration indication, the one or more processors are configured to cause the apparatus to: Receive the reference signal configuration indication in the control resource set 0 (CORESET0).

17. The apparatus according to claim 11, wherein the one or more processors are further configured to: Receive a layer 1 measurement report configuration associated with measuring the reference signal.

18. The apparatus according to claim 17, wherein in order to receive the layer 1 measurement report configuration, the one or more processors are configured to cause the apparatus to: Receive the layer 1 measurement report configuration in at least one of the following: The SSB, or The control resource set 0 (CORESET0).

19. The apparatus according to claim 17, wherein the beam management process includes a network node beam refinement process, and wherein the layer 1 measurement report configuration is at least partially based on the network node beam refinement process.

20. The apparatus according to claim 17, wherein the one or more processors are further configured to: generate a layer 1 measurement report at least partially based on the layer 1 measurement report configuration and the reference signal; and transmit the layer 1 measurement report before receiving the UE-specific SIB1.

21. The apparatus according to claim 11, wherein the beam management process includes a network node beam refinement process, wherein the reference signal repetition associated with the reference signal is disabled, and the one or more processors are further configured to: select a communication beam at least partially based on the network node beam refinement process before receiving the UE-specific SIB1; indicate the communication beam to a network node before receiving the UE-specific SIB1; and receive communication at least partially based on the UE-specific SIB1 physical downlink shared channel (PDSCH) using the communication beam.

22. The apparatus according to claim 21, wherein the one or more processors are further configured to: receive a second communication at least partially based on the UE-specific control resource set 0 (CORESET0) using the communication beam.

23. A method of wireless communication performed by an apparatus of a network node, the method comprising: receiving a random access channel (RACH) from the UE before transmitting a user equipment (UE)-specific system information block type 1 (SIB1) associated with the UE; and transmitting a reference signal before transmitting the UE-specific SIB1 and at least partially based on receiving the RACH, the reference signal being at least partially based on a beam management process.

24. The method according to claim 23, the method further comprising: transmitting a layer 1 measurement report configuration associated with measuring the reference signal.

25. The method according to claim 23, wherein the beam management process includes a UE receive beam refinement process, and wherein transmitting the reference signal comprises: transmitting the reference signal at least partially based on the reference signal repetition being enabled as part of the UE receive beam refinement process.

26. The method according to claim 23, wherein transmitting the reference signal comprises: transmitting the reference signal at least partially based on the reference signal repetition being disabled.

27. A method of wireless communication performed by an apparatus of a user equipment (UE), the method comprising: transmitting a random access channel (RACH) using a beam at least partially based on a synchronization signal block (SSB) before receiving a user equipment (UE)-specific system information block type 1 (SIB1); and receiving a reference signal before receiving the UE-specific SIB1 and at least partially based on transmitting the RACH, the reference signal being at least partially based on a beam management process.

28. The method according to claim 27, the method further comprises: receiving a layer 1 measurement report configuration associated with measuring the reference signal.

29. The method according to claim 28, the method further comprises: generating a layer 1 measurement report at least in part based on the layer 1 measurement report configuration and the reference signal; and transmitting the layer 1 measurement report before receiving the UE-specific SIB1.

30. The method according to claim 27, wherein the beam management procedure includes a UE receiving a beam refinement procedure, and wherein receiving the reference signal comprises: at least in part based on the reference signal repetition being enabled to receive the reference signal as part of the UE receiving beam refinement procedure.

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