Beam discovery operations for uplink transmit beam discovery associated with uplink only network nodes

Abstract

Aspects of the present disclosure generally relate to wireless communications. In some aspects, a user equipment (UE) may receive beam discovery configuration information associated with identifying an effective uplink beam associated with an uplink-only network node, where the beam discovery configuration information indicates a pool of beam discovery resources. The UE may transmit a plurality of beam discovery signals using a plurality of resources of the pool of beam discovery resources based on the beam discovery configuration information. Numerous other aspects are described.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS

[0001] This patent application claims priority to U.S. Patent Application No. 17 / 934,546, filed on September 22, 2022, entitled “BEAM DISCOVERY OPERATION FOR UPLINK TRANSMISSION BEAM DISCOVERY ASSOCIATED WITH UPLINK-ONLY NETWORKNODES” and assigned to the assignee of this application. The disclosure of the prior application is considered a part of and incorporated by reference into this patent application. Technical Field

[0002] Aspects of the present disclosure relate generally to wireless communications and to techniques and apparatus for beam finding operations for uplink transmit beam finding associated with an uplink-only network node. Background Art

[0003] Wireless communication systems are widely deployed to provide a variety of telecommunication services, such as telephony, video, data, messaging, and broadcasting. Typical wireless communication systems may employ multiple access technologies that can support communication with multiple users by sharing available system resources (e.g., bandwidth or transmit power, etc.). Examples of such multiple access technologies include code division multiple access (CDMA) systems, time division multiple access (TDMA) systems, frequency division multiple access (FDMA) systems, orthogonal frequency division multiple access (OFDMA) systems, single carrier frequency division multiple access (SC-FDMA) systems, time division synchronous code division multiple access (TD-SCDMA) systems, and long term evolution (LTE). LTE / LTE-Advanced is a set of enhancements to the Universal Mobile Telecommunications System (UMTS) mobile standard promulgated by the Third Generation Partnership Project (3GPP).

[0004] A wireless network may include one or more network nodes that support communications for wireless communication devices, such as user equipment (UE) or multiple UEs. The UE may communicate with the network node via downlink communications and uplink communications. A "downlink" (or "DL") refers to a communication link from a network node to a UE, and an "uplink" (or "UL") refers to a communication link from a UE to a network node. Some wireless networks may support device-to-device communications, such as via a local link (e.g., a side link (SL), a wireless local area network (WLAN) link, and / or a wireless personal area network (WPAN) link, etc.).

[0005] The above multiple access technologies have been adopted in various telecommunication standards to provide a common protocol that enables different UEs to communicate at a city, country, region, and / or global level. New Radio (NR), which may be referred to as 5G, is a set of enhancements to the LTE mobile standard promulgated by 3GPP. NR is designed to better support mobile broadband Internet access by: improving spectrum efficiency; reducing costs; improving services; utilizing new spectrum; and better integrating with other open standards using orthogonal frequency division multiplexing (OFDM) with cyclic prefix (CP) (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. As the demand for mobile broadband access continues to increase, further improvements in LTE, NR, and other radio access technologies remain useful. Summary of the invention

[0006] Some aspects described herein relate to a user equipment (UE) for wireless communication. The user equipment may include a memory and one or more processors coupled to the memory. The one or more processors may be configured to receive beam discovery configuration information associated with identifying an effective uplink beam associated with an uplink-only network node, wherein the beam discovery configuration information indicates a beam discovery resource pool. The one or more processors may be configured to send multiple beam discovery signals using multiple resources of the beam discovery resource pool based on the beam discovery configuration information.

[0007] Some aspects described herein relate to an uplink-only network node for wireless communication. The uplink-only network node may include a memory and one or more processors coupled to the memory. The one or more processors may be configured to receive beam discovery configuration information associated with a beam discovery process for identifying a valid uplink beam associated with the uplink-only network node, wherein the beam discovery configuration information indicates a beam discovery resource pool. The one or more processors may be configured to receive at least one detected beam discovery signal using at least one resource of the beam discovery resource pool based on the beam discovery configuration information. The one or more processors may be configured to receive beam discovery identification information that associates at least one detected beam discovery signal with a UE.

[0008] Some aspects described herein relate to a network node for wireless communications. The network node may include a memory and one or more processors coupled to the memory. The one or more processors may be configured to send, to at least one UE, first beam discovery configuration information associated with a beam discovery process for identifying a valid uplink beam associated with an uplink-only network node, wherein the first beam discovery configuration information indicates a beam discovery resource pool. The one or more processors may be configured to send, to the uplink-only network node, second beam discovery configuration information associated with the beam discovery process. The one or more processors may be configured to receive a beam discovery report indicating an association between at least one detected beam discovery signal and a UE in the at least one UE.

[0009] Some aspects described herein relate to a method of wireless communication performed by an apparatus of a UE. The method may include receiving beam discovery configuration information associated with identifying an effective uplink beam associated with an uplink-only network node, wherein the beam discovery configuration information indicates a beam discovery resource pool. The method may include sending a plurality of beam discovery signals using a plurality of resources of the beam discovery resource pool based on the beam discovery configuration information.

[0010] Some aspects described herein relate to a method of wireless communication performed by an apparatus of an uplink-only network node. The method may include receiving beam discovery configuration information associated with a beam discovery process for identifying a valid uplink beam associated with the uplink-only network node, wherein the beam discovery configuration information indicates a beam discovery resource pool. The method may include receiving at least one detected beam discovery signal using at least one resource of the beam discovery resource pool based on the beam discovery configuration information. The method may include receiving beam discovery identification information associating the at least one detected beam discovery signal with a UE.

[0011] Some aspects described herein relate to a method of wireless communication performed by an apparatus of a network node. The method may include sending first beam discovery configuration information associated with a beam discovery procedure for identifying a valid uplink beam associated with an uplink-only network node to at least one UE, wherein the first beam discovery configuration information indicates a beam discovery resource pool. The method may include sending second beam discovery configuration information associated with the beam discovery procedure to the uplink-only network node. The method may include receiving a beam discovery report indicating an association between at least one detected beam discovery signal and a UE of at least one UE.

[0012] Some aspects described herein relate to a non-transitory computer-readable medium storing an instruction set for wireless communication by a UE. The instruction set, when executed by one or more processors of the UE, may cause the UE to receive beam discovery configuration information associated with identifying an effective uplink beam associated with an uplink-only network node, wherein the beam discovery configuration information indicates a beam discovery resource pool. The instruction set, when executed by one or more processors of the UE, may cause the UE to send multiple beam discovery signals using multiple resources of the beam discovery resource pool based on the beam discovery configuration information.

[0013] Some aspects described herein relate to a non-transitory computer-readable medium storing an instruction set for wireless communication by one or more instructions when executed by one or more processors of an uplink-only network node. The instruction set, when executed by one or more processors of the one or more instructions, when executed by one or more processors of the uplink-only network node, may cause the one or more instructions, when executed by the one or more processors of the uplink-only network node, to receive beam discovery configuration information associated with a beam discovery process for identifying a valid uplink beam associated with the uplink-only network node, wherein the beam discovery configuration information indicates a beam discovery resource pool. The instruction set, when executed by one or more processors of the one or more instructions, when executed by one or more processors of the uplink-only network node, may cause the one or more instructions, when executed by the one or more processors of the uplink-only network node, to receive at least one detected beam discovery signal using at least one resource of a beam discovery resource pool based on the beam discovery configuration information. The instruction set, when executed by one or more processors of the one or more instructions, may cause the one or more instructions, when executed by one or more processors of an uplink-only network node, to receive beam discovery identification information that associates at least one detected beam discovery signal with a UE.

[0014] Some aspects described herein relate to a non-transitory computer-readable medium storing an instruction set for wireless communication by a network node. The instruction set, when executed by one or more processors of the network node, may cause the network node to send first beam discovery configuration information associated with a beam discovery process for identifying a valid uplink beam associated with an uplink-only network node to at least one UE, wherein the first beam discovery configuration information indicates a beam discovery resource pool. The instruction set, when executed by one or more processors of the network node, may cause the network node to send second beam discovery configuration information associated with the beam discovery process to the uplink-only network node. The instruction set, when executed by one or more processors of the network node, may cause the network node to receive a beam discovery report indicating an association between at least one detected beam discovery signal and a UE in at least one UE.

[0015] Some aspects described herein are directed to an apparatus for wireless communication. The apparatus may include means for receiving beam discovery configuration information associated with identifying an active uplink beam associated with an uplink-only network node, wherein the beam discovery configuration information indicates a beam discovery resource pool. The apparatus may include means for transmitting a plurality of beam discovery signals using a plurality of resources of the beam discovery resource pool based on the beam discovery configuration information.

[0016] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include components for receiving beam discovery configuration information associated with a beam discovery process for identifying a valid uplink beam associated with an uplink-only network node, wherein the beam discovery configuration information indicates a beam discovery resource pool. The apparatus may include components for receiving at least one detected beam discovery signal using at least one resource of the beam discovery resource pool based on the beam discovery configuration information. The apparatus may include components for receiving beam discovery identification information associating the at least one detected beam discovery signal with a UE.

[0017] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include means for sending, to at least one UE, first beam discovery configuration information associated with a beam discovery procedure for identifying a valid uplink beam associated with an uplink-only network node, wherein the first beam discovery configuration information indicates a beam discovery resource pool. The apparatus may include means for sending, to the uplink-only network node, second beam discovery configuration information associated with the beam discovery procedure. The apparatus may include means for receiving a beam discovery report indicating an association between at least one detected beam discovery signal and a UE in at least one UE.

[0018] Aspects collectively include methods, apparatus, 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 drawings and description and as illustrated in the drawings and description.

[0019] The features and technical advantages of examples according to the present disclosure have been outlined quite extensively above so that the following specific embodiments may be better understood. Additional features and advantages will be described below. The disclosed concepts and specific examples may be easily used as a basis for modifying or designing other structures for achieving the same purpose 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 in terms of their organization and method of operation, and the associated advantages will be better understood by considering the following description in conjunction with the accompanying drawings. Each of the figures in the accompanying drawings is provided for the purpose of illustration and description and not as a definition of limitations to the claims.

[0020] Although various aspects are described in the present disclosure by illustrating some examples, it will be understood by those skilled in the art that such aspects can be implemented in many different arrangements and scenarios. The technology described herein can be implemented using different platform types, devices, systems, shapes, sizes and / or packaging arrangements. For example, some aspects can be implemented via integrated chip implementations 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). Various aspects can be implemented in chip-level components, modular components, non-modular components, non-chip-level components, device-level components and / or system-level components. The devices incorporating the various aspects and features described may include additional components and features for implementing and practicing the various aspects claimed and described. For example, the transmission and reception of wireless signals may include 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 various aspects described herein are intended to be practiced in a variety of devices, components, systems, distributed arrangements and / or end-user devices of various sizes, shapes and configurations. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order that the above-mentioned features of the present disclosure may be fully understood, a more specific description of the above brief summary may be obtained by reference to various aspects (some of which are illustrated in the accompanying drawings). However, it should be noted that the accompanying drawings illustrate only certain typical aspects of the present disclosure and are therefore not to be considered as limiting the scope thereof, as the specification may admit of other equally effective aspects. The same reference numerals in different drawings may identify the same or similar elements.

[0022] Figure 1 is a diagram illustrating an example of a wireless network according to the present disclosure.

[0023] Figure 2 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.

[0024] Figure 3 is a diagram illustrating an example decomposed base station architecture according to the present disclosure.

[0025] Figure 4 An example of a wireless communication system according to the present disclosure is illustrated.

[0026] Figure 5 is a diagram of an example associated with beam discovery operations for uplink transmit beam discovery associated with an uplink-only network node according to the present disclosure.

[0027] Figure 6 is a diagram illustrating an example process performed, for example, by a UE according to the present disclosure.

[0028] Figure 7 is a diagram illustrating an example process performed, for example, by an uplink-only network node according to the present disclosure.

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

[0030] Fig. 9 is a diagram of an example apparatus for wireless communications according to the present disclosure.

[0031] Fig.10 is a diagram of an example apparatus for wireless communications according to the present disclosure. DETAILED DESCRIPTION

[0032] The various aspects of the present disclosure are described more fully below with reference to the accompanying drawings. However, the present disclosure can be embodied in many different forms, and should not be interpreted as being limited to any specific structure or function presented throughout the present disclosure. Instead, these aspects are provided so that the present disclosure will be thorough and complete, and the protection scope of the present disclosure will be fully conveyed to those skilled in the art. It should be appreciated by those skilled in the art that the scope of the present disclosure is intended to cover any aspect of the present disclosure disclosed herein, whether it is implemented independently or in combination with any other aspect of the present disclosure. For example, any number of aspects set forth herein may be used to implement a device or practice method. In addition, the scope of the present disclosure is intended to cover such devices or methods implemented using other structures, functionality, or structures and functionality in addition to or different from the various aspects of the 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 claim.

[0033] Aspects and examples generally include methods, apparatus, network nodes, systems, computer program products, non-transitory computer-readable media, user equipment, base stations, wireless communication devices, and / or processing systems as described or fully described herein with reference to the figures and description and as illustrated in the figures and description.

[0034] The present disclosure may be readily used as a basis for modifying or designing other structures for carrying out the same purpose 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 their organization and method of operation) and the associated advantages are better understood from the following description when considered in conjunction with the accompanying drawings. Each of the figures in the accompanying drawings is provided for the purpose of illustration and description and not as a definition of limitations to the claims.

[0035] Although various aspects are described in the present disclosure by illustrating some examples, such aspects can be implemented in many different arrangements and scenarios. The technology described herein can be implemented using different platform types, devices, systems, shapes, sizes and / or packaging arrangements. For example, some aspects can be implemented via integrated chip implementations or other devices based on non-module components (e.g., end-user devices, vehicles, communication equipment, computing equipment, industrial equipment, retail / shopping equipment, medical equipment and / or artificial intelligence devices). Various aspects can be implemented in chip-level components, modular components, non-modular components, non-chip-level components, device-level components and / or system-level components. The device incorporating the various aspects and features described may include additional components and features for implementing and practicing the various aspects claimed and described. For example, the transmission and reception of wireless signals may include 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 various aspects described herein can be practiced in a variety of devices, components, systems, distributed arrangements and / or end-user devices of different sizes, shapes and compositions.

[0036] Several aspects of telecommunication systems will now be presented with reference to various devices and techniques. These devices and techniques will be described in the following detailed description and illustrated in the accompanying drawings by various blocks, modules, components, circuits, steps, processes, or algorithms, etc. (collectively referred to as "elements"). These elements can be implemented using hardware, software, or a combination thereof. Whether these elements are implemented as hardware or software depends on the specific application and the design constraints imposed on the overall system.

[0037] Although various aspects may be described herein using terminology generally associated with 5G or new radio (NR) radio access technology (RAT), various aspects of the present disclosure may be applied to other RATs, such as 3G RAT, 4G RAT, and / or 5G and beyond (e.g., 6G) RATs.

[0038] Figure 11 is a diagram illustrating an example of a wireless network 100 according to the present disclosure. The wireless network 100 may be a 5G (e.g., NR) network and / or a 4G (e.g., 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, etc. The wireless network 100 may include one or more network nodes 110 (shown as network node 110a, network node 110b, network node 110c, and network node 110d), user equipment (UE) 120 or multiple UEs 120 (shown as UE 120a, UE 120b, UE 120c, UE 120d, and UE 120e), and / or other entities. The network node 110 is a network node that communicates with the UE 120. As shown in the figure, the network node 110 may include one or more network nodes. For example, the network node 110 may be a converged network node, which means that the converged network node is configured to utilize a radio protocol stack that is physically or logically integrated within a single radio access network (RAN) node (e.g., within a single device or unit). For another example, the network node 110 may be a decomposed network node (sometimes referred to as a decomposed base station), which means that the network node 110 is configured to utilize a protocol stack that is 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)).

[0039] In some examples, the network node 110 is or includes a network node (such as an RU) that communicates with the UE 120 via a radio access link. In some examples, the network node 110 is or includes a network node (such as a DU) that communicates with other network nodes 110 via a fronthaul link or a midhaul link. In some examples, the network node 110 is or includes a network node (such as a CU) that communicates with other network nodes 110 via a midhaul link or communicates with a core network via a backhaul link. In some examples, the network node 110 (such as an aggregated network node 110 or a decomposed network node 110) may include multiple network nodes, such as one or more RUs, one or more CUs, and / or one or more DUs. For example, the network node 110 may include an NR base station, an LTE base station, a Node B, an eNB (e.g., in 4G), a gNB (e.g., in 5G), an access point, a transmit receive point (TRP), a DU, a RU, a CU, a mobility element of a network, a core network node, a network element, a network equipment, a RAN node, or a combination thereof. In some examples, network nodes 110 may be interconnected to each other or to one or more other network nodes 110 in wireless network 100 via various types of fronthaul interfaces, midhaul interfaces, and / or backhaul interfaces (such as direct physical connections, air interfaces, or virtual networks) using any suitable transport network.

[0040] In some examples, the network node 110 may provide communication coverage for a particular geographic area. In the Third Generation Partnership Project (3GPP), the term "cell" may refer to the coverage area of ​​the network node 110 and / or a network node subsystem serving the coverage area, depending on the context in which the term is used. The network node 110 may provide communication coverage for a macro cell, a pico cell, a femto cell, and / or another type of cell. A macro cell may cover a relatively large geographic area (e.g., a radius of several kilometers) and may allow unrestricted access by a UE 120 with a service subscription. A pico cell may cover a relatively small geographic area and may allow unrestricted access by a UE 120 with a service subscription. A femto cell may cover a relatively small geographic area (e.g., a home) and may allow restricted access by a UE 120 associated with the femto cell (e.g., a UE 120 in a closed subscriber group (CSG)). A network node 110 for a macro cell may be referred to as a macro network node. A network node 110 for a pico cell may be referred to as a pico network node. The network node 110 for a femto cell may be referred to as a femto network node or a home network node. Figure 1 In 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 pico cell 102b, and network node 110c may be a femto network node for femto cell 102c. The network node may support one or more (e.g., three) cells. In some examples, the cells may not necessarily be stationary, and the geographic area of ​​the cells may move depending on the location of the mobile network node 110 (e.g., a mobile network node).

[0041] In some aspects, the term "base station" or "network node" may refer to a converged base station, a decomposed base station, an integrated access and backhaul (IAB) node, a relay node, or one or more components thereof. For example, in some aspects, a "base station" or "network node" may refer to a CU, a DU, a RU, a near real-time (near-RT) RAN intelligent controller (RIC), or a non-real-time (non-RT) RIC, or a combination thereof. In some aspects, the term "base station" or "network node" may refer to a device configured to perform one or more functions, such as those described herein in conjunction with the network node 110. In some aspects, the term "base station" or "network node" may refer to a plurality of 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 geographic location or in different geographic locations) may be configured to perform at least a portion of a function, or to repeat the execution 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 but not another base station function. In this way, a single device may include more than one base station.

[0042] 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 transmit transmissions of data to a downstream node (e.g., UE 120 or network node 110). A relay station may be a UE 120 that can relay transmissions for other UEs 120. Figure 1 In the example shown, a network node 110d (e.g., a relay network node) may communicate with a network node 110a (e.g., a macro network node) and a UE 120d to facilitate communications between the network node 110a and the UE 120d. A network node 110 that relays communications may be referred to as a relay station, a relay base station, a relay network node, a relay node, a relay, or the like.

[0043] The 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, or relay network nodes, etc. These different types of network nodes 110 may have different transmit power levels, different coverage areas, and / or different impacts on interference in the wireless network 100. For example, a macro network node may have a high transmit power level (e.g., 5 watts to 40 watts), while a pico network node, a femto network node, and a relay network node may have a lower transmit power level (e.g., 0.1 watt to 2 watts).

[0044] The network controller 130 may be coupled to or in communication with a set of network nodes 110 and may provide coordination and control for the network nodes 110. The network controller 130 may communicate with the network nodes 110 via a backhaul communication link or a midhaul communication link. The network nodes 110 may also communicate directly with each other or indirectly via a wireless backhaul communication link or a wired backhaul communication link. In some aspects, the network controller 130 may be or may include a CU or a core network device.

[0045] UE 120 may be dispersed throughout the wireless network 100, and each UE 120 may be stationary or mobile. UE 120 may include, for example, an access terminal, a terminal, a mobile station, and / or a subscriber unit. UE 120 may be a cellular phone (e.g., a smart phone), a personal digital assistant (PDA), a wireless modem, a wireless communication device, a handheld device, a laptop computer, a cordless phone, a wireless local loop (WLL) station, a tablet computer, a camera, a gaming device, a netbook, a smartbook, an ultrabook, 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, an industrial manufacturing equipment, a global positioning system device, a UE function of a network node, and / or any other suitable device configured to communicate via a wireless or wired medium.

[0046] Some UEs 120 may be considered as machine type communication (MTC) or evolved or enhanced machine type communication (eMTC) UEs. MTC UEs and / or eMTC UEs may include, for example, robots, drones, remote devices, sensors, meters, monitors, and / or location tags that may communicate with a network node, another device (e.g., a remote device), or some other entity. Some UEs 120 may be considered as Internet of Things (IoT) devices and / or may be implemented as NB-IoT (narrowband IoT) devices. Some UEs 120 may be considered as customer premises equipment. UE 120 may be included in a housing that houses components of UE 120, such as a processor component and / or a memory component. In some examples, the processor component and the memory component may be coupled together. For example, a processor component (e.g., one or more processors) and a memory component (e.g., a memory) may be operably coupled, communicatively coupled, electronically coupled, and / or electrically coupled.

[0047] In general, any number of wireless networks 100 may be deployed in a given geographic area. Each wireless network 100 may support a specific RAT and may operate on one or more frequencies. RAT may be referred to as a radio technology or air interface, etc. Frequency may be referred to as a carrier or frequency channel, etc. Each frequency may support a single RAT in a given geographic area to avoid interference between wireless networks of different RATs. In some cases, NR or 5G RAT networks may be deployed.

[0048] In some examples, two or more UEs 120 (e.g., shown as UE 120a and UE 120e) may communicate directly (e.g., without using network node 110 as an intermediary to communicate with each other) using one or more side link channels. For example, UE 120 may communicate using peer-to-peer (P2P) communication, device-to-device (D2D) communication, vehicle-to-everything (V2X) protocols (e.g., which may include vehicle-to-vehicle (V2V) protocols, vehicle-to-infrastructure (V2I) protocols, or vehicle-to-pedestrian (V2P) protocols), and / or mesh networks. In such examples, UE 120 may perform scheduling operations, resource selection operations, and / or other operations described elsewhere herein as being performed by network node 110.

[0049] Devices of the wireless network 100 may communicate using an electromagnetic spectrum, which may be subdivided into various categories, bands, channels, etc., according to frequency or wavelength. For example, devices of the wireless network 100 may communicate using one or more operating bands. In 5G NR, two initial operating bands have been identified as frequency range designations FR1 (410 MHz to 7.125 GHz) and FR2 (24.25 GHz to 52.6 GHz). It should be understood that, although a portion of FR1 is greater than 6 GHz, FR1 is often (interchangeably) referred to as the "sub-6 GHz" band in various documents and articles. A similar naming issue sometimes occurs with respect to FR2, which is often (interchangeably) referred to as the "millimeter wave" band in documents and articles, although it is different from the extremely high frequency (EHF) band (30 GHz–300 GHz) identified as the "millimeter wave" band by the International Telecommunication Union (ITU).

[0050] Frequencies between FR1 and FR2 are generally referred to as mid-band frequencies. Recent 5G NR research has identified the operating bands for these mid-band frequencies as frequency range designation FR3 (7.125 GHz–24.25 GHz). The frequency bands falling within FR3 can inherit FR1 characteristics and / or FR2 characteristics, and thus can effectively extend the characteristics of FR1 and / or FR2 to mid-band frequencies. In addition, 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 to 71 GHz), FR4 (52.6 GHz to 114.25 GHz), and FR5 (114.25 GHz to 300 GHz). Each of these higher frequency bands falls within the EHF band.

[0051] Considering the above examples, unless otherwise specifically stated, it should be understood that if the term "below 6 GHz" or the like is used herein, the term may broadly refer to frequencies that may be lower than 6 GHz, may be within FR1, or may include mid-band frequencies. In addition, unless otherwise specifically stated, it should be understood that if the term "millimeter wave" or the like is used herein, the term may broadly refer to frequencies that may include mid-band frequencies, may be within FR2, FR4, FR4-a or FR4-1, and / or FR5, or may be within the EHF band. It is contemplated that the frequencies included in these operating bands (e.g., FR1, FR2, FR3, FR4, FR4-a, FR4-1, and / or FR5) may be modified, and the techniques described herein are applicable to those modified frequency ranges.

[0052] In some aspects, UE 120 may include a communication manager 140. As described in more detail elsewhere herein, the communication manager 140 may receive beam discovery configuration information associated with identifying an effective uplink beam associated with an uplink-only network node, wherein the beam discovery configuration information indicates a beam discovery resource pool; and send multiple beam discovery signals using multiple resources of the beam discovery resource pool based on the beam discovery configuration information. Additionally or alternatively, the communication manager 140 may perform one or more other operations described herein.

[0053] In some aspects, the network node 110 may include a communication manager 150. As described in more detail elsewhere herein, the communication manager 150 may receive beam discovery configuration information associated with a beam discovery process for identifying a valid uplink beam associated with an uplink-only network node, wherein the beam discovery configuration information indicates a beam discovery resource pool; receive at least one detected beam discovery signal using at least one resource of the beam discovery resource pool based on the beam discovery configuration information; and receive beam discovery identification information associating the at least one detected beam discovery signal with the UE. Additionally or alternatively, the communication manager 150 may perform one or more other operations described herein.

[0054] In some aspects, the network node 110 may include a communication manager 150. As described in more detail elsewhere herein, the communication manager 150 may send, to at least one UE, first beam discovery configuration information associated with a beam discovery process for identifying a valid uplink beam associated with an uplink-only network node, wherein the first beam discovery configuration information indicates a beam discovery resource pool; send, to the uplink-only network node, second beam discovery configuration information associated with the beam discovery process; and receive a beam discovery report indicating an association between at least one detected beam discovery signal and a UE in the at least one UE. Additionally or alternatively, the communication manager 150 may perform one or more other operations described herein.

[0055] As indicated above, Figure 1 are provided as examples. Other examples can be found in the Figure 1 The examples described are different.

[0056] Figure 22 is a diagram illustrating an example 200 of a network node 110 communicating with 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 to 234t, such as T antennas (T≥1). The UE 120 may be equipped with a set of antennas 252a to 252r, such as R antennas (R≥1). The network node 110 of example 200 includes one or more radio frequency components, such as an antenna 234 and a 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 a radio frequency component that facilitates direct communication with the UE 120, such as one or more CUs or one or more DUs.

[0057] At the network node 110, a transmit processor 220 may receive data intended for a UE 120 (or a group of UEs 120) from a data source 212. The transmit processor 220 may select one or more modulation and coding schemes (MCS) for the UE 120 based at least in part on one or more channel quality indicators (CQIs) received from the UE 120. The network node 110 may process (e.g., encode and modulate) the data for the UE 120 based at least in part on the MCS selected for the UE 120, and provide data symbols for the UE 120. The transmit processor 220 may process system information (e.g., for semi-static resource partitioning information (SRPI)) and control information (e.g., CQI requests, grants, and / or upper layer signaling), and provide overhead symbols and control symbols. The transmit processor 220 may generate reference symbols for reference signals (e.g., cell-specific reference signals (CRS) or demodulation reference signals (DMRS)) and synchronization signals (e.g., primary synchronization signals (PSS) or secondary synchronization signals (SSS)). The transmit (TX) multiple-input multiple-output (MIMO) processor 230 may perform spatial processing (e.g., pre-coding) on ​​data symbols, control symbols, overhead symbols, and / or reference symbols, where 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 to 232t). For example, each output symbol stream may be provided to a modulator component (shown as MOD) of the modem 232. Each modem 232 may process a corresponding output symbol stream (e.g., for OFDM) using a corresponding modulator component to obtain an output sample stream. Each modem 232 may further process (e.g., convert to analog, amplify, filter, and / or up-convert) the output sample stream using a corresponding modulator component to obtain a downlink signal. The modems 232a to 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 to 234t).

[0058] At the UE 120, a group of antennas 252 (shown as antennas 252a to 252r) may receive downlink signals from the network node 110 and / or other network nodes 110 and may provide a group of received signals (e.g., R received signals) to a group of modems 254 (e.g., R modems) (shown as modems 254a to 254r). For example, each received signal may be provided to a demodulator component (shown as DEMOD) of the modem 254. Each modem 254 may use a corresponding demodulator component to condition (e.g., filter, amplify, downconvert, and / or digitize) the received signal to obtain input samples. Each modem 254 may use a demodulator component to further process the input samples (e.g., for OFDM) to obtain received symbols. A MIMO detector 256 may obtain received symbols from the modem 254, may perform MIMO detection on the received symbols where applicable, and may provide detected symbols. The receive processor 258 may process (e.g., demodulate and decode) the detected symbols, may provide decoded data for the UE 120 to the data sink 260, and may provide 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 a reference signal received power (RSRP) parameter, a received signal strength indicator (RSSI) parameter, a reference signal received quality (RSRQ) parameter, and / or a CQI parameter, among other things. In some examples, one or more components of the UE 120 may be included in the housing 284.

[0059] 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.

[0060] One or more antennas (e.g., antennas 234a to 234t and / or antennas 252a to 252r) may include or be included within one or more antenna panels, one or more antenna groups, one or more groups of antenna elements, and / or one or more antenna arrays, etc. An antenna panel, antenna group, group of antenna elements, and / or antenna array may include one or more antenna elements (in a single housing or multiple housings), a group of coplanar antenna elements, a group of non-coplanar antenna elements, and / or be coupled to one or more transmit and / or receive components (such as, Figure 2 One or more antenna elements of one or more components in.

[0061] Each of the antenna elements may include one or more sub-elements for radiating or receiving radio frequency signals. For example, a single antenna element may include a first sub-element that is cross-polarized with a second sub-element, which can be used to independently transmit cross-polarized signals. The antenna elements may include patch antennas, dipole antennas, or other types of antennas arranged in a linear pattern, a two-dimensional pattern, or another pattern. The spacing between antenna elements may allow signals having desired wavelengths transmitted individually by the antenna elements to interact or interfere (e.g., to form a desired beam). For example, given a desired wavelength or frequency range, the spacing may provide a quarter wavelength, half wavelength, or other fraction of a wavelength of the spacing between adjacent antenna elements to allow interaction or interference of signals transmitted by individual antenna elements within the desired range.

[0062] Antenna elements and / or sub-elements may be used to generate beams. A "beam" may refer to a directional transmission, such as a wireless signal transmitted in the direction of a receiving device. A beam may include a directional signal, a direction associated with the signal, a set of directional resources associated with the signal (e.g., angle of arrival, horizontal direction, vertical direction), and / or a set of parameters indicating one or more aspects of the directional signal, the direction associated with the signal, and / or the set of directional resources associated with the signal.

[0063] As indicated above, antenna elements and / or sub-elements can be used to generate beams. For example, antenna elements can be individually selected or deselected for transmission of a signal (or multiple signals) by controlling the amplitude of one or more corresponding amplifiers. Beamforming includes generating beams using multiple signals on different antenna elements, wherein one or more or all of the multiple signals are shifted in phase relative to each other. The formed beams may carry physical or higher layer reference signals or information. When each of the multiple signals is radiated from the corresponding antenna element, the radiated signals interact, interfere (constructively and destructively), and amplify with each other to form the resulting beam. The shape (such as amplitude, width, and / or the presence of side lobes) and direction (such as the angle of the beam relative to the surface of the antenna array) can be dynamically controlled by modifying the phase shift or phase offset of the multiple signals relative to each other.

[0064] Beamforming may be used for communication between a UE and a base station, such as for millimeter wave communication, etc. In this case, the base station may provide the UE with a configuration of a transmit configuration indicator (TCI) state, which respectively indicates beams that may be used by the UE, such as for receiving a physical downlink shared channel (PDSCH). The base station may indicate an activated TCI state to the UE, and the UE may use the activated TCI state to select a beam for receiving the PDSCH.

[0065] The beam indication may be or include a TCI state information element, a beam identifier (ID), spatial relationship information, a TCI state ID, a closed loop index, a panel ID, a TRP ID, and / or a sounding reference signal (SRS) set ID, etc. The TCI state information element (referred to herein as TCI state) may indicate information associated with a beam such as a downlink beam. For example, the TCI state information element may indicate a TCI state identifier (e.g., tci-StateID), a quasi co-location (QCL) type (e.g., qcl-Type1, qcl-Type2, qcl-TypeA, qcl-TypeB, qcl-TypeC, qcl-TypeD, etc.), a cell identifier (e.g., ServCellIndex), a bandwidth part identifier (bwp-Id), a reference signal identifier (such as CSI-RS (e.g., NZP-CSI-RS-ResourceId, SSB-Index, etc.)), etc. The spatial relationship information may similarly indicate information associated with an uplink beam.

[0066] The beam indication may be a joint or separate downlink (DL) / uplink (UL) beam indication in a unified TCI framework. In some cases, the network may use at least UE-specific (unicast) downlink control information (DCI) to indicate a joint or separate DL / UL beam indication from an active TCI state, thereby supporting layer 1 (L1) based beam indication. In some cases, existing DCI formats 1_1 and / or 1_2 may be reused for beam indication. The network may include a support mechanism for the UE to confirm successful decoding of the beam indication. For example, an acknowledgment / negative acknowledgment (ACK / NACK) of a PDSCH scheduled by a DCI carrying a beam indication may also be used as an ACK for the DCI.

[0067] Beam indication may be provided for carrier aggregation (CA) scenarios. In a unified TCI framework, the network may support common TCI state ID updates and activations to provide common QCL information and / or one or more common UL transmit spatial filters across a set of configured component carriers (CCs). This type of beam indication may be applicable to intra-band CA as well as joint DL / UL beam indication and separate DL / UL beam indication. A common TCI state ID may mean that a reference signal (RS) determined according to the TCI state indicated by the common TCI state ID is used to provide a QCL type D indication and determine the UL transmit spatial filter across a set of configured CCs.

[0068] 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. The symbols from the transmit processor 264 may be pre-decoded by the TX MIMO processor 266, where applicable, further processed by the modem 254 (e.g., for DFT-s-OFDM or CP-OFDM), and sent 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 an antenna 252, a modem 254, a MIMO detector 256, a receive processor 258, a transmit processor 264, and / or a TX MIMO processor 266. The transceiver may be used by a processor (eg, controller / processor 280) and memory 282 to perform the functions described herein (eg, reference Figures 5 to 10 ) any aspects of any of the methods described herein.

[0069] At the network node 110, uplink signals from the UE 120 and / or other UEs may be received by the antenna 234, processed by the modem 232 (e.g., a demodulator component of the modem 232 shown as DEMOD), detected by the MIMO detector 236 (where applicable), and further processed by the receive processor 238 to obtain decoded data and control information transmitted by the UE 120. The receive processor 238 may provide the decoded data to the data sink 239 and the decoded control information to the controller / processor 240. The 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 and / or uplink communications. 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 antenna 234, modem 232, MIMO detector 236, receive processor 238, transmit processor 220, and / or TX MIMO processor 230. The transceiver may be used by a processor (e.g., controller / processor 240) and memory 242 to perform operations described herein (e.g., with reference to Figures 5 to 10 ) any aspects of any of the methods described herein.

[0070] In some aspects, the controller / processor 280 may be a component of a processing system. A processing system may generally be a system or series of machines or components that receives inputs and processes the inputs to produce a set of outputs that may be communicated to other systems or components, such as the UE 120. For example, the processing system of the UE 120 may be a system that includes various other components or subcomponents of the UE 120.

[0071] The processing system of UE 120 may interface with one or more other components of UE 120, may process information (such as input or signal) received from one or more other components, or may output information to one or more other components. For example, a chip or modem of UE 120 may include: a processing system, a first interface for receiving or obtaining information, and a second interface for outputting, sending, or providing information. In some examples, the first interface may be an interface between a processing system and a receiver of the chip or modem, so that UE 120 may receive information or signal input, and may pass information to the processing system. In some examples, the second interface may be an interface between a processing system and a transmitter of the chip or modem, so that UE 120 may send information output from the chip or modem. A person of ordinary skill in the art will readily recognize that the second interface may also obtain or receive information or signal input, and the first interface may also output, send, or provide information.

[0072] In some aspects, controller / processor 240 may be a component of a processing system. A processing system may generally be a system or series of machines or components that receives inputs and processes the inputs to produce a set of outputs that may be passed to other systems or components, such as network node 110. For example, a processing system of network node 110 may be a system that includes various other components or subcomponents of network node 110.

[0073] The processing system of the network node 110 may interface with one or more other components of the network node 110, may process information (such as input or signal) received from one or more other components, or may output information to one or more other components. For example, a chip or modem of the network node 110 may include: a processing system, a first interface for receiving or obtaining information, and a second interface for outputting, sending, or providing information. In some examples, the first interface may be an interface between a processing system and a receiver of the chip or modem, so that the network node 110 may receive information or signal input, and may pass the information to the processing system. In some examples, the second interface may be an interface between a processing system and a transmitter of the chip or modem, so that the network node 110 may send information output from the chip or modem. A person of ordinary skill in the art will readily recognize that the second interface may also obtain or receive information or signal input, and the first interface may also output, send, or provide information.

[0074] The controller / processor 240 of the network node 110, the controller / processor 280 of the UE 120, and / or Figure 2 Any other components of the controller / processor 240 of the network node 110, the controller / processor 280 of the UE 120, and / or Figure 2 Any other component of the Figure 6 The process of 600 Figure 7 The process of 700 Figure 8 800 and / or other processes as described herein. Memory 242 and memory 282 may store data and program codes 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 that stores one or more instructions (e.g., code and / or program code) for wireless communication. For example, the one or more instructions, when executed (e.g., directly or after compilation, conversion, and / or interpretation) by one or more processors of network node 110 and / or UE 120, may cause the one or more processors, UE 120, and / or network node 110 to perform or direct, for example, Figure 6 The process of 600 Figure 7 The process of 700 Figure 8 The process 800 and / or operations of other processes as described herein. In some examples, executing instructions may include running instructions, converting instructions, compiling instructions, and / or interpreting instructions, etc.

[0075] In some aspects, the UE 120 includes means for receiving beam discovery configuration information associated with identifying an effective uplink beam associated with an uplink-only network node, wherein the beam discovery configuration information indicates a beam discovery resource pool; and / or means for transmitting a plurality of beam discovery signals using a plurality of resources of the beam discovery resource pool based on the beam discovery configuration information. Means for the UE 120 to perform operations described herein may include, for example, one or more of the communication manager 140, the antenna 252, the modem 254, the MIMO detector 256, the receive processor 258, the transmit processor 264, the TX MIMO processor 266, the controller / processor 280, or the memory 282.

[0076] In some aspects, an uplink-only network node (e.g., network node 110) includes: components for receiving beam discovery configuration information associated with a beam discovery process for identifying a valid uplink beam associated with the uplink-only network node, wherein the beam discovery configuration information indicates a beam discovery resource pool; components for receiving at least one detected beam discovery signal using at least one resource of the beam discovery resource pool based on the beam discovery configuration information; and / or components for receiving beam discovery identification information associating at least one detected beam discovery signal with UE 120.

[0077] In some aspects, the network node 110 includes means for sending, to at least one UE 120, first beam discovery configuration information associated with a beam discovery process for identifying a valid uplink beam associated with an uplink-only network node, wherein the first beam discovery configuration information indicates a beam discovery resource pool; means for sending, to the uplink-only network node, second beam discovery configuration information associated with the beam discovery process; and / or means for receiving a beam discovery report indicating an association between at least one detected beam discovery signal and a UE 120 in the at least one UE 120. Means for the network node 110 to perform operations described herein may include, for example, one or more of the communications manager 150, the transmit processor 220, the TX MIMO processor 230, the modem 232, the antenna 234, the MIMO detector 236, the receive processor 238, the controller / processor 240, the memory 242, or the scheduler 246.

[0078] Although Figure 2 The blocks in the 2000 and 2010 are illustrated as distinct components, but the functionality described above with respect to these blocks may be implemented in a single hardware, software, or combined component or in various combinations of components. For example, the functionality described with respect to the transmit processor 264, the receive processor 258, and / or the TX MIMO processor 266 may be performed by or under the control of the controller / processor 280.

[0079] As indicated above, Figure 2 are provided as examples. Other examples can be found in the Figure 2 The examples described are different.

[0080] The deployment of a communication system (such as a 5G NR system) can be arranged with various components or parts in a variety of ways. In a 5G NR system or network, a network node, a network entity, a mobility element of a network, a RAN node, a core network node, a network element, a base station or network equipment can be implemented in an aggregated or decomposed architecture. For example, a base station (such as a node B (NB), an evolved NB (eNB), an NR BS, a 5G NB, an access point (AP), a TRP or a cell, etc.) or one or more units (or one or more components) that perform base station functionality can be implemented as an aggregated base station (also known as an independent base station or a monolithic base station) or a decomposed base station. "Network entity" or "network node" may refer to a decomposed base station or one or more units of a decomposed base station (such as one or more CUs, one or more DUs, one or more RUs, or a combination thereof).

[0081] An aggregated base station (e.g., an aggregated 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 decomposed base station (e.g., a decomposed 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, the CU may be implemented within a network node, and one or more DUs may be co-located with the CU, or alternatively, may be geographically or virtually distributed across one or more other network nodes. The 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), and the like.

[0082] Base station type operations or network designs may take into account the aggregated nature of base station functionality. For example, a decomposed base station may be utilized in an IAB network, an open radio access network (O-RAN (such as a network configuration initiated 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 decomposed 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 may enable flexibility in network design. Individual units of a decomposed base station may be configured for wired or wireless communication with at least one other unit of the decomposed base station.

[0083] Figure 3 3 is a diagram illustrating an example decomposed base station architecture 300 according to the present disclosure. The decomposed base station architecture 300 may include a CU 310, which may communicate directly with a core network 320 via a backhaul link, or indirectly with the core network 320 through one or more decomposed control units (such as a near-RT RIC 325 via an E2 link, or a non-RT RIC 315 associated with a service management and orchestration (SMO) framework 305, or both). The CU 310 may communicate with one or more DUs 330 via corresponding midhaul links (such as through an F1 interface). Each of the DUs 330 may communicate with one or more RUs 340 via corresponding fronthaul links. Each of the RUs 340 may communicate with one or more UEs 120 via corresponding RF access links. In some specific implementations, a UE 120 may be served by multiple RUs 340 simultaneously.

[0084] Each of these units (including CU 310, DU 330, RU 340) and near-RT RIC 325, non-RTRIC 315 and SMO framework 305) may include or be coupled to one or more interfaces, which are configured to receive or send signals, data or information (collectively referred to as signals) via a wired or wireless transmission medium. Each of these units or an associated processor or controller that provides instructions to one or more communication interfaces of the corresponding unit may be configured to communicate with one or more of the other units via a transmission medium. In some examples, each of these units may include a wired interface and a wireless interface, the wired interface being configured to receive signals or send signals to one or more of the other units via a wired transmission medium, and the wireless interface may include a receiver, a transmitter or a transceiver (such as an RF transceiver), which is configured to receive signals or send signals to one or more of the other units via a wireless transmission medium, or both.

[0085] In some aspects, the CU 310 may host one or more higher layer control functions. Such control functions may include radio resource control (RRC) functions, packet data convergence protocol (PDCP) functions, or service data adaptation protocol (SDAP) functions, etc. Each control function may be implemented using an interface that is configured to communicate signals with other control functions hosted by the CU 310. The CU 310 may be configured to handle user plane functionality (e.g., central unit-user plane (CU-UP) functionality), control plane functionality (e.g., central unit-control plane (CU-CP) functionality), or a combination thereof. In some specific implementations, the CU 310 may be logically split into one or more CU-UP units and one or more CU-CP units. When implemented in an O-RAN configuration, the CU-UP unit may communicate bidirectionally with the CU-CP unit via an interface (such as an E1 interface). As needed, the CU310 may be implemented to communicate with the DU 330 for network control and signaling.

[0086] Each DU 330 may correspond to a logical unit that includes one or more base station functions for controlling the operation of one or more RUs 340. In some aspects, the DU 330 may host one or more of a radio link control (RLC) layer, a MAC layer, and one or more high physical (PHY) layers, at least in part, according to a functional partition such as that defined by 3GPP. In some aspects, the one or more high PHY layers may be implemented by one or more modules for forward error correction (FEC) encoding and decoding, scrambling, modulation and demodulation, etc. In some aspects, the DU 330 may further host one or more low PHY layers, such as one or more modules for fast Fourier transform (FFT), inverse FFT (iFFT), digital beamforming or physical random access channel (PRACH) extraction and filtering, etc. Each layer (which may also be referred to as a module) may be implemented using an interface that is configured to communicate signals with other layers (and modules) hosted by the DU 330 or with control functions hosted by the CU 310.

[0087] Each RU 340 may implement lower layer functionality. In some deployments, the RU 340 controlled by the DU 330 may correspond to a logical node that hosts RF processing functions or low PHY layer functions (such as performing FFT, performing iFFT, digital beamforming, or PRACH extraction and filtering, etc.) based on a functional split such as a lower layer functional split (e.g., a functional split defined by 3GPP). In such an architecture, each RU 340 may be operated to handle over-the-air (OTA) communications with one or more UEs 120. In some specific implementations, real-time and non-real-time aspects of communicating with the control plane and user plane of the RU 340 may be controlled by the corresponding DU 330. In some scenarios, this configuration may enable each DU 330 and CU 310 to be implemented in a cloud-based RAN architecture (such as a vRAN architecture).

[0088] The SMO framework 305 may be configured to support RAN deployment and provisioning of non-virtualized network elements and virtualized network elements. For non-virtualized network elements, the SMO framework 305 may be configured to support the deployment of dedicated physical resources for RAN coverage requirements, which may be managed via an operation and maintenance interface (such as an O1 interface). For virtualized network elements, the SMO framework 305 may be configured to interact with a cloud computing platform (such as an open cloud (O-Cloud) platform 390) to perform network element lifecycle management (such as instantiating virtualized network elements) via a cloud computing platform interface (such as an O2 interface). Such virtualized network elements may include, but are not limited to, CU 310, DU 330, RU 340, non-RT RIC 315, and near-RT RIC 325. In some specific implementations, the SMO framework 305 may communicate with hardware aspects of the 4G RAN (such as an open eNB (O-eNB) 311) via the O1 interface. Additionally, in some implementations, the SMO framework 305 can communicate directly with each of the one or more RUs 340 via a corresponding O1 interface. The SMO framework 305 can also include a non-RT RIC 315 configured to support the functionality of the SMO framework 305.

[0089] The non-RT RIC 315 may be configured to include logic functions that enable non-real-time control and optimization of RAN elements and resources, artificial intelligence / machine learning (AI / ML) workflows including model training and updating, or policy-based guidance of applications / features in the near-RT RIC 325. The non-RT RIC 315 may be coupled to or communicate with the near-RT RIC 325 (such as via an A1 interface). The near-RT RIC 325 may be configured to include logic functions that enable near-real-time control and optimization of RAN elements and resources via data collection and actions through an interface (such as via an E2 interface) that connects one or more CUs 310, one or more DUs 330, or both, and the O-eNB with the near-RT RIC 325.

[0090] In some implementations, in order to generate an AI / ML model to be deployed in the near-RT RIC 325, the non-RT RIC 315 may receive parameters or external enrichment information from an external server. Such information may be utilized by the near-RT RIC 325 and may be received from a non-network data source or from a network function at the SMO framework 305 or the non-RT RIC 315. In some examples, the non-RT RIC 315 or the near-RT RIC 325 may be configured to tune RAN behavior or performance. For example, the non-RT RIC 315 may monitor long-term trends and patterns of performance and employ AI / ML models to perform corrective actions through the SMO framework 305 (such as via reconfiguration of the O1 interface) or via the creation of RAN management policies (such as A1 interface policies).

[0091] As indicated above, Figure 3 are provided as examples. Other examples can be found in the Figure 3 The examples described are different.

[0092] Figure 4 An example 400 of a wireless communication system according to the present disclosure is illustrated.

[0093] As shown, UE 402 can communicate with network node 404. UE 402 can be, be similar to, or include Figures 1 to 3 UE 120 as depicted in, or included in Figures 1 to 3 The network node 404 may be, similar to, or include Figure 1 and Figure 2 The depicted network node 110 and / or Figure 3One or more components of the depicted decomposed base station architecture 300 may be included in the network node and / or the one or more components. For example, in some cases, the network node 404 may be a gNB or other cell serving network node. Example 400 illustrates a dense uplink deployment in which multiple uplink-only network nodes (in Figure 4 404) may be deployed to route (e.g., relay or forward) uplink communications from UE 402 to network node 404. Network node 404 may communicate with each of the uplink-only network nodes via respective communication links 414, 416, 418, or 420. Communication links 414, 416, 418, and / or 420 may include wired communication links, wireless communication links, backhaul communication links, and / or serial bus communication links, among others. For example, in some cases, one or more of uplink-only network nodes 406, 408, 410, and 412 may be physically co-located with network node 404. In some cases, one or more of uplink-only network nodes 406, 408, 410, and 412 may be remotely located relative to network node 404.

[0094] The deployment of uplink-only network nodes 406, 408, 410, and 412 may be used to improve uplink coverage. In some cases, downlink transmissions may be sent only from network node 404, while uplink signals may be received at network node 404 or at one or more of uplink-only network nodes 406, 408, 410, and 412. In the FR2 frequency range, uplink communications may be facilitated by transmission via beams. UE 402 may perform beamforming operations in conjunction with network node 404, 406, 408, 410, or 412 to facilitate selection of uplink transmit beams and uplink receive beams to be used for communication of uplink signals.

[0095] However, because the uplink-only network node 406, 408, 410, or 412 is configured to only receive uplink signals and not to transmit downlink signals, the UE 402 may not be aware of the presence of the uplink-only network node 406, 408, 410, or 412. Therefore, during the beam management process, the UE 402 may not be able to select a transmit beam suitable for transmitting an uplink signal to the uplink-only network node 406, 408, 410, or 412, which may result in the UE 402 being unable to transmit an uplink signal to the uplink-only network node 406, 408, 410, or 412, thereby minimizing the improved uplink coverage that the uplink-only network node 406, 408, 410, or 412 is implemented to provide. In some cases, for example, the UE 402 may be in a connected mode with respect to a cell associated with the network node 404. For example, UE 402 may have established a communication connection with uplink-only network node 406, but due to channel changes and / or mobility, UE 402 may benefit from being able to discover a new beam pair associated with another uplink-only network node 406, 408, 410, or 412. A beam pair includes an uplink transmit beam associated with UE 402 and an uplink receive beam associated with uplink-only network node 406, 408, 410, or 412.

[0096] In some cases, for uplink beam management, the network node (e.g., gNB) may configure and / or trigger the UE to transmit SRS for beam management. The SRS may be configured by indicating a reference signal. For example, the UE may be configured to transmit the target SRS resource using the same spatial domain transmit filter used to receive a reference synchronization signal (SS) / physical broadcast channel (PBCH) block or a channel state information reference signal (CSI-RS). For example, the UE may transmit the target SRS resource using the same spatial domain transmit filter used for the transmission of a reference periodic SRS. However, this functionality is configured to support SRS transmission with a "known" transmit beam (e.g., a transmit beam already used for uplink or downlink). In a beam discovery operation, an "unknown" transmit and / or receive beam that can connect the UE and the network node may be detected.

[0097] Some aspects of the techniques and apparatus described herein may facilitate beam discovery operations for uplink transmit beam discovery associated with an uplink-only network node. In some aspects, as shown by reference numeral 422, UE 402 may send a transmit beam recommendation to network node 404. The transmit beam recommendation may indicate one or more UE transmit beams for communicating with an uplink-only network node (e.g., uplink-only network node 408). As shown by reference numeral 424, network node 404 may send configuration information to UE 402. The configuration information may configure resources (e.g., SRS transmit resources and / or PRACH transmit resources) for UE 402 to use for transmitting multiple beam discovery signals. Network node 404 may send configuration information to uplink-only network nodes 406, 408, 410, and 412, thereby configuring uplink-only network nodes 406, 408, 410, and 412 to monitor beam discovery signals.

[0098] In some aspects, the transmit beam used to transmit the beam discovery signal may not have an associated source reference signal for spatial filtering. In some aspects, the network node 404 may indicate a dedicated "dummy" synchronization signal block (SSB) that may be used as a spatial filter source in the configuration information sent to the UE 402. In some aspects, the network node 404 may know which uplink-only network nodes are closer to the currently active uplink-only network node than other uplink-only network nodes. For example, the UE 402 may have an active communication connection 426 with the uplink-only network node 408, and therefore, the network node 404 may only activate and / or configure the uplink-only network node 408 for beam discovery operations. The uplink-only network node 408 may be configured to monitor the beam discovery signal using multiple different uplink receive beams. Thus, aspects of the beam finding operations described herein may include a two-dimensional beam scanning process, where a first dimension refers to transmit beam scanning performed by the UE 402 and a second dimension refers to receive beam scanning performed by the uplink-only network node 408 .

[0099] In some aspects, additional UEs may be within the coverage area served by the network node 404. In such cases, the network node 404 may configure each UE with a beam discovery process, and may configure an appropriate uplink-only network node (e.g., an uplink-only network node that is within a threshold distance of a corresponding connected uplink-only network node) with a corresponding monitoring operation. As shown by reference numeral 428, the UE 402 may transmit a beam discovery signal, at least one detected beam discovery signal of which may be received by the uplink-only network node 408. In this manner, some aspects may facilitate the UE and the uplink-only network node to discover transmit and receive beam pairs that may be used to facilitate communication between the UE and the uplink-only network node. Thus, some aspects may facilitate efficient use of uplink-only network nodes to improve uplink coverage in a wireless network.

[0100] As indicated above, Figure 4 are provided as examples. Other examples can be found in the Figure 4 The examples described are different.

[0101] Figure 5 is a diagram of an example 500 associated with beam discovery operations for uplink transmit beam discovery associated with an uplink-only network node according to the present disclosure. Figure 5 As shown, UE 502 can communicate with network node 504 and network node 506. In some aspects, UE 502 and network nodes 504 and 506 can be part of a wireless network (e.g., wireless network 100). For example, UE 502 can be, be similar to, or include Figures 1 to 3 UE 120 and / or Figure 4 402, or included in these UEs. The network node 404 and / or the network node 406 may be, similar to, or include Figure 1 and Figure 2 The depicted network node 110, Figure 3 One or more components of the decomposed base station architecture depicted in Figure 4 404, 406, 408, 410, and / or 412 depicted in the figure, or included in these network nodes and / or one or more components. For example, network node 404 may be capable of downlink and uplink communications, while network node 406 may be an uplink-only network node. UE 402 and network node 404 may be in Figure 5 The operations shown are performed after a wireless connection has been established.

[0102] As indicated by reference numeral 508, the UE 502 may transmit, and the network node 504 may receive, a transmit beam recommendation. The transmit beam recommendation may indicate one or more suggested transmit beams to be used for transmitting the beam discovery signal. In some aspects, for example, the one or more suggested transmit beams may be based on one or more transmit beams being used to transmit signals to an active network node (e.g., an active uplink-only network node to which the UE is currently connected).

[0103] As indicated by reference numeral 510, the network node 504 may send, and the UE 502 may receive, first configuration information. In some aspects, the UE 502 may receive the first configuration information via one or more of RRC signaling, one or more medium access control (MAC) control elements (CEs), and / or DCI, etc. In some aspects, the first configuration information may include an indication of one or more configuration parameters for selection by the UE 502 (e.g., already known to the UE 502 and / or previously indicated by the network node 504 or other network device), and / or explicit configuration information for use by the UE 502 to configure the UE 502, etc.

[0104] The UE 502 may configure itself based at least in part on the first configuration information. In some aspects, the UE 502 may be configured to perform one or more operations described herein based at least in part on the first configuration information. In some aspects, the first configuration information may include first beam discovery configuration information.

[0105] In some aspects, the first beam discovery configuration information may be associated with identifying a valid uplink beam associated with an uplink-only network node. The first beam discovery configuration information may indicate a beam discovery resource pool including resources that can be used to transmit a beam discovery signal. In some aspects, the first beam discovery configuration information may indicate a resource set associated with a set of transmit beams corresponding to multiple beam discovery signals. In some aspects, the set of transmit beams may include one or more of the recommended transmit beams. In some aspects, the first beam discovery configuration information indicates at least one transmit parameter for transmitting at least one beam discovery signal among the multiple beam discovery signals. For example, the at least one transmit parameter may include transmit power, TCI state, modulation and decoding scheme, and / or subcarrier spacing, etc.

[0106] A beam discovery signal among the multiple beam discovery signals may include an SRS, and the first beam discovery configuration information may indicate a beam management SRS resource set associated with the SRS. For example, the first beam discovery configuration information may include an RRC message indicating a transmit beam corresponding to the SRS. In some aspects, the beam discovery signal among the multiple beam discovery signals may include a PRACH signal. The first beam discovery configuration information may indicate a PRACH preamble sequence associated with the beam discovery signal. The first beam discovery configuration information may indicate multiple potential PRACH preamble sequences including the PRACH preamble sequence, and the UE 502 may randomly select a PRACH preamble sequence from the multiple PRACH preamble sequences.

[0107] In some aspects, the first beam discovery configuration information may indicate a power ramping scheme to be used for transmitting the beam discovery signal. A reference power associated with the power ramping scheme may include a current transmit power associated with transmitting the signal to the active network node. In some aspects, the first beam discovery configuration information may include power control information indicating a transmit power for transmitting one or more beam discovery signals. The power control information may indicate a power offset relative to the reference power. The reference power may include a current transmit power associated with transmitting the signal to the active network node.

[0108] The initial transmit power associated with the power climbing scheme may be based on a reference power and a backoff value. In some aspects, the first beam discovery configuration information may include an RRC message indicating the backoff value. In some aspects, the first beam discovery configuration information may indicate at least one of a power climbing step size and a number of power climbing steps. In some aspects, the first beam discovery configuration information may indicate a timing offset associated with the power climbing scheme. The timing offset may correspond to a time period for which the UE 502 is to continue to use the current transmit power before implementing the power climbing scheme.

[0109] As indicated by reference numeral 512, the network node 504 may send and the network node 506 may receive second configuration information. The second configuration information may include second beam discovery configuration information. The second beam discovery configuration information may be associated with a beam discovery process and may indicate a beam discovery resource pool. The second beam discovery configuration information may indicate a resource set associated with a set of transmit beams corresponding to a plurality of beam discovery signals including at least one detected beam discovery signal. In some aspects, the second beam discovery configuration information may indicate a beam discovery resource pool. In some aspects, the second beam discovery configuration information may indicate at least one transmit parameter associated with at least one beam discovery signal of the plurality of beam discovery signals including at least one detected beam discovery signal. In some aspects, the second beam discovery configuration information may indicate a QCL relationship between a first set of transmit resources associated with the first beam discovery signal and a second set of transmit resources associated with the second beam discovery signal. In some aspects, the second beam discovery configuration information may indicate a multiplexing scheme for multiplexing a plurality of UEs including the UE 502. The multiplexing scheme may include at least one of a time division multiplexing (TDM) scheme, a frequency division multiplexing (FDM) scheme, or a code division multiplexing (CDM) scheme.

[0110] In some aspects, the second beam discovery configuration information may configure the network node 506 to send a polling communication indicating a request for a beam discovery report associated with the detected beam discovery signal.

[0111] As indicated by reference numeral 514, the network node 506 may monitor the beam discovery signal. For example, the network node 506 may monitor the beam discovery signal based on the QCL relationship. As indicated by reference numeral 516, the UE 502 may transmit and the network node 506 may receive the beam discovery signal. In some aspects, the UE 502 may transmit a plurality of beam discovery signals, and the network node 506 may receive at least one detected beam discovery signal from the transmitted beam discovery signals. The UE 502 may transmit the plurality of beam discovery signals using a plurality of resources of the beam discovery resource pool and based on the first beam discovery configuration information.

[0112] In some aspects, the UE 502 may transmit a plurality of beam discovery signals based on transmitting a first beam discovery signal using a first transmit beam and transmitting a second beam discovery signal using a second transmit beam. Based on the second transmit beam being the first transmit beam, a first set of transmit resources associated with the first beam discovery signal may be QCL with a second set of transmit resources associated with the second beam discovery signal. In some aspects, based on the second transmit beam being different from the first transmit beam, a first set of transmit resources associated with the first beam discovery signal may be QCL with a second set of transmit resources associated with the second beam discovery signal.

[0113] In some aspects, the UE 502 may transmit multiple beam discovery signals based on a power ramp-up scheme. In some aspects, the UE 502 may transmit at least one beam discovery signal using a transmit power based on a link quality associated with a communication link between the UE and an active uplink network node. For example, if a currently active network node is about to go out of coverage, it may be urgent to find a new network node within the coverage area. In this case, the UE 502 may transmit at a higher power (e.g., by using a higher transmit power or by backing off using a smaller transmit power).

[0114] In some aspects, a beam discovery signal among the plurality of beam discovery signals may indicate beam discovery information. The beam discovery information may indicate an identity of the UE and a transmit beam corresponding to the beam discovery signal. In some aspects, the beam discovery signal may explicitly indicate at least a portion of the beam discovery information. In some aspects, the location of the beam discovery signal may implicitly indicate at least a portion of the beam discovery information. The location of the beam discovery signal may include at least one of a time resource associated with the beam discovery signal or a frequency resource associated with the beam discovery signal.

[0115] In some aspects, the beam discovery signal may include a sequence indicating the beam discovery information. The sequence may be associated with SRS scrambling. The sequence may include a PRACH sequence. In some aspects, the network node 506 may not be able to explicitly determine from the beam discovery information the identity of the UE 502 that sent at least one detected beam discovery signal received by the network node 506. In some aspects, the network node 506 may determine from the beam discovery information that the beam discovery signal was sent by a UE in a group of UEs.

[0116] As indicated by reference numeral 518, the network node 506 may send and the UE 502 may receive a polling communication. In some aspects, the polling communication may indicate a request for a beam discovery report associated with the detected beam discovery signal. The polling communication may include a DCI and / or a PDSCH communication. In some aspects, the polling communication may indicate signal information associated with the detected beam discovery signal. In some aspects, the signal information may indicate at least one of a sequence associated with the detected beam discovery signal or a resource associated with the detected beam discovery signal. In some aspects, the polling communication may indicate one or more reporting resources for sending the beam discovery report.

[0117] As indicated by reference numeral 520, the UE 502 may send, and the network node 506 may receive, a beam discovery report. In some aspects, the beam discovery report may indicate an identity of the UE 502. As indicated by reference numeral 522, the network node 506 may provide an indication of the UE 502 to the network node 504, and as indicated by reference numeral 524, the network node 504 may send, and the UE 502 may receive, a resource allocation. The resource allocation may allocate resources for uplink transmissions from the UE 502 to the network node 506 based on the uplink transmit beams discovered via the beam discovery process described herein. In some aspects, as indicated by reference numeral 526, the network node 504 may provide the resource allocation to the network node 506 for receiving uplink communications.

[0118] In some aspects, two or more UEs may transmit beam discovery signals in the same resources, thereby causing a collision. The network node 506 and / or the network node 504 may detect a stronger signal in the conflicting signal or may not detect a signal in the conflicting signal. In this case, in some aspects, contention resolution may be postponed until another round of beam discovery signal transmission.

[0119] As indicated above, Figure 5 are provided as examples. Other examples can be found in relation to Figure 5 The examples described are different.

[0120] Figure 6 is a diagram illustrating an example process 600 performed, for example, by a UE according to the present disclosure. Example process 600 is an example in which a UE (eg, UE 502) performs operations associated with beam discovery operations for uplink transmit beam discovery associated with an uplink-only network node.

[0121] like Figure 6 As shown, in some aspects, process 600 may include receiving beam discovery configuration information associated with identifying an active uplink beam associated with an uplink-only network node, wherein the beam discovery configuration information indicates a beam discovery resource pool (block 610). For example, a UE (e.g., using Fig. 9 The communication manager 908 and / or receiving component 902 depicted in FIG. 1 may receive beam discovery configuration information associated with identifying a valid uplink beam associated with an uplink-only network node, wherein the beam discovery configuration information indicates a beam discovery resource pool, as described above.

[0122] like Figure 6 As further shown, in some aspects, process 600 may include sending a plurality of beam discovery signals using a plurality of resources of a beam discovery resource pool based on the beam discovery configuration information (block 620). Fig. 9The communication manager 908 and / or the transmitting component 904 depicted in FIG. 1 may transmit a plurality of beam discovery signals using a plurality of resources of a beam discovery resource pool based on the beam discovery configuration information, as described above.

[0123] Process 600 may include additional aspects, such as any single aspect or any combination of aspects described below and / or in conjunction with one or more other processes described elsewhere herein.

[0124] In a first aspect, transmitting a plurality of beam discovery signals comprises transmitting the first beam discovery signal using a first transmit beam and transmitting the second beam discovery signal using a second transmit beam. In a second aspect, alone or in combination with the first aspect, based on the second transmit beam being the first transmit beam, a first set of transmit resources associated with the first beam discovery signal is quasi-co-located with a second set of transmit resources associated with the second beam discovery signal. In a third aspect, alone or in combination with one or more of the first and second aspects, based on the second transmit beam being different from the first transmit beam, a first set of transmit resources associated with the first beam discovery signal is different from a second set of transmit resources associated with the second beam discovery signal is quasi-co-located.

[0125] In a fourth aspect, alone or in combination with one or more of the first to third aspects, the beam discovery signal in the plurality of beam discovery signals includes an SRS. In a fifth aspect, alone or in combination with one or more of the first to fourth aspects, the beam discovery configuration information indicates a beam management SRS resource set associated with the SRS. In a sixth aspect, alone or in combination with one or more of the first to fifth aspects, the beam discovery configuration information includes a radio resource control message indicating a transmit beam corresponding to the SRS.

[0126] In a seventh aspect, alone or in combination with one or more of the first to sixth aspects, a beam discovery signal in the plurality of beam discovery signals comprises a PRACH signal. In an eighth aspect, alone or in combination with one or more of the first to seventh aspects, the beam discovery configuration information indicates a PRACH preamble sequence associated with the beam discovery signal. In a ninth aspect, alone or in combination with one or more of the first to eighth aspects, the beam discovery configuration information indicates a plurality of potential PRACH preamble sequences including a PRACH preamble sequence, and wherein the PRACH preamble sequence is randomly selected from the plurality of PRACH preamble sequences.

[0127] In a tenth aspect, either alone or in combination with one or more of aspects 1 to 9, sending a plurality of beam discovery signals comprises sending a plurality of beam discovery signals based on a power ramping scheme. In an eleventh aspect, either alone or in combination with one or more of aspects 1 to 10, a reference power associated with the power ramping scheme comprises a current transmit power associated with transmitting a signal to an active network node. In a twelfth aspect, either alone or in combination with one or more of aspects 1 to 11, an initial transmit power associated with the power ramping scheme is based on a reference power and a backoff value. In a thirteenth aspect, either alone or in combination with one or more of aspects 1 to twelfth, process 600 comprises receiving a radio resource control message indicating a backoff value.

[0128] In a fourteenth aspect, either alone or in combination with one or more of the first to thirteenth aspects, the beam discovery configuration information indicates at least one of a power climbing step size and a number of power climbing steps. In a fifteenth aspect, either alone or in combination with one or more of the first to fourteenth aspects, the beam discovery configuration information indicates a timing offset associated with a power climbing scheme. In a sixteenth aspect, either alone or in combination with one or more of the first to fifteenth aspects, sending multiple beam discovery signals includes sending at least one beam discovery signal using a transmit power based on a link quality associated with a communication link between the UE and an active uplink network node. In a seventeenth aspect, either alone or in combination with one or more of the first to sixteenth aspects, process 600 includes receiving power control information indicating a transmit power, wherein sending multiple beam discovery signals includes sending at least one beam discovery signal using the transmit power.

[0129] In an eighteenth aspect, alone or in combination with one or more of the first to seventeenth aspects, the power control information indicates a power offset relative to a reference power. In a nineteenth aspect, alone or in combination with one or more of the first to eighteenth aspects, the reference power comprises a current transmit power associated with transmitting a signal to an active network node. In a twentieth aspect, alone or in combination with one or more of the first to nineteenth aspects, the beam discovery configuration information comprises power control information.

[0130] In aspect twenty-first, alone or in combination with one or more of aspects one to twenty-third, a beam discovery signal among the plurality of beam discovery signals indicates beam discovery information. In aspect twenty-second, alone or in combination with one or more of aspects one to twenty-first, the beam discovery information indicates an identification of a UE and a transmit beam corresponding to the beam discovery signal. In aspect twenty-third, alone or in combination with one or more of aspects one to twenty-second, the beam discovery signal explicitly indicates at least a portion of the beam discovery information. In aspect twenty-four, alone or in combination with one or more of aspects one to twenty-third, the position of the beam discovery signal implicitly indicates at least a portion of the beam discovery information. In aspect twenty-fifth, alone or in combination with one or more of aspects one to twenty-fourth, the position of the beam discovery includes at least one of a time resource associated with the beam discovery signal or a frequency resource associated with the beam discovery signal.

[0131] In the twenty-sixth aspect, either alone or in combination with one or more of the first to twenty-fifth aspects, the beam discovery signal includes a sequence indicating beam discovery information. In the twenty-seventh aspect, either alone or in combination with one or more of the first to twenty-sixth aspects, the sequence is associated with SRS scrambling. In the twenty-eighth aspect, either alone or in combination with one or more of the first to twenty-seventh aspects, the sequence includes a PRACH sequence. In the twenty-ninth aspect, either alone or in combination with one or more of the first to twenty-eighth aspects, the beam discovery information indicates the identity of the UE. In the thirtieth aspect, either alone or in combination with one or more of the first to twenty-ninth aspects, the beam discovery configuration information indicates a resource set associated with a set of transmit beams corresponding to multiple beam discovery signals. In the thirty-first aspect, either alone or in combination with one or more of the first to thirtieth aspects, the beam discovery configuration information indicates a beam discovery resource pool.

[0132] In aspect thirty-second, alone or in combination with one or more of aspects one to thirty-first, the beam finding configuration information indicates at least one transmission parameter for sending at least one beam finding signal among a plurality of beam finding signals. In aspect thirty-third, alone or in combination with one or more of aspects one to thirty-second, process 600 includes receiving a polling communication indicating a request for a beam finding report associated with a detected beam finding signal. In aspect thirty-four, alone or in combination with one or more of aspects one to thirty-third, the polling communication includes a DCI. In aspect thirty-fifth, alone or in combination with one or more of aspects one to thirty-four, the polling communication includes a PDSCH communication.

[0133] In aspect thirty-six, either alone or in combination with one or more of aspects one to thirty-five, the polling communication indicates signal information associated with the detected beam discovery signal. In aspect thirty-seven, either alone or in combination with one or more of aspects one to thirty-six, the signal information indicates at least one of a sequence associated with the detected beam discovery signal or a resource associated with the detected beam discovery signal. In aspect thirty-eight, either alone or in combination with one or more of aspects one to thirty-seven, the polling communication indicates one or more reporting resources for sending a beam discovery report. In aspect thirty-nine, either alone or in combination with one or more of aspects one to thirty-eight, process 600 includes sending a beam discovery report based on the polling communication. In aspect fortieth, either alone or in combination with one or more of aspects one to thirty-nine, the beam discovery report includes a medium access control control element.

[0134] although Figure 6 Example blocks of process 600 are shown, but in some aspects, process 600 may include Figure 6 The blocks depicted may be additional blocks, fewer blocks, different blocks, or blocks arranged in a different manner than those depicted. Additionally or alternatively, two or more of the blocks of process 600 may be performed in parallel.

[0135] Figure 7 700 is a diagram illustrating an example process 700 performed, for example, by an uplink-only network node in accordance with the present disclosure. The example process 700 is an example in which an uplink-only network node (e.g., the network node 506) performs operations associated with beam discovery operations for uplink transmission beam discovery associated with the uplink-only network node.

[0136] like Figure 7 As shown, in some aspects, process 700 may include receiving beam discovery configuration information associated with a beam discovery process for identifying a valid uplink beam associated with an uplink-only network node, wherein the beam discovery configuration information indicates a beam discovery resource pool (block 710). For example, an uplink-only network node (e.g., using Fig.10 The communication manager 1008 and / or receiving component 1002 depicted in FIG. 1 may receive beam discovery configuration information associated with a beam discovery process for identifying a valid uplink beam associated with an uplink-only network node, wherein the beam discovery configuration information indicates a beam discovery resource pool, as described above.

[0137] like Figure 7As further shown, in some aspects, process 700 may include receiving at least one detected beam discovery signal using at least one resource of a beam discovery resource pool based on the beam discovery configuration information (block 720). For example, only an uplink network node (e.g., using Fig.10 The communication manager 1008 and / or the receiving component 1002 depicted in FIG. 1004 may receive at least one detected beam discovery signal using at least one resource of the beam discovery resource pool based on the beam discovery configuration information, as described above.

[0138] like Figure 7 As further shown, in some aspects, process 700 may include receiving beam discovery identification information associating at least one detected beam discovery signal with the UE (block 730). For example, an uplink-only network node (e.g., using Fig.10 The communication manager 1008 and / or receiving component 1002 depicted in FIG. 1004 may receive beam discovery identification information associating at least one detected beam discovery signal with a UE, as described above.

[0139] Process 700 may include additional aspects, such as any single aspect or any combination of aspects described below and / or in conjunction with one or more other processes described elsewhere herein.

[0140] In the first aspect, at least one detected beam discovery signal includes an SRS. In the second aspect, alone or in combination with the first aspect, at least one detected beam discovery signal includes a PRACH signal. In the third aspect, alone or in combination with one or more of the first and second aspects, at least one detected beam discovery signal indicates beam discovery information. In the fourth aspect, alone or in combination with one or more of the first to third aspects, the beam discovery information indicates an identification of the UE and a transmit beam corresponding to at least one detected beam discovery signal. In the fifth aspect, alone or in combination with one or more of the first to fourth aspects, at least one detected beam discovery signal explicitly indicates at least a portion of the beam discovery information. In the sixth aspect, alone or in combination with one or more of the first to fifth aspects, the position of at least one detected beam discovery signal implicitly indicates at least a portion of the beam discovery information.

[0141] In the seventh aspect, alone or in combination with one or more of the first to sixth aspects, the location of at least one detected beam discovery signal includes at least one of a time resource associated with the at least one detected beam discovery signal or a frequency resource associated with the at least one detected beam discovery signal. In the eighth aspect, alone or in combination with one or more of the first to seventh aspects, the beam discovery signal includes a sequence indicating beam discovery information. In the ninth aspect, alone or in combination with one or more of the first to eighth aspects, the sequence is associated with SRS scrambling. In the tenth aspect, alone or in combination with one or more of the first to ninth aspects, the sequence includes a PRACH sequence. In the eleventh aspect, alone or in combination with one or more of the first to tenth aspects, the beam discovery information indicates the identity of the UE.

[0142] In a twelfth aspect, alone or in combination with one or more of the first to eleventh aspects, the beam discovery configuration information indicates a resource set associated with a set of transmit beams corresponding to a plurality of beam discovery signals including at least one detected beam discovery signal. In a thirteenth aspect, alone or in combination with one or more of the first to twelfth aspects, the beam discovery configuration information indicates a beam discovery resource pool. In a fourteenth aspect, alone or in combination with one or more of the first to thirteenth aspects, the beam discovery configuration information indicates at least one transmission parameter associated with at least one beam discovery signal among a plurality of beam discovery signals including at least one detected beam discovery signal.

[0143] In a fifteenth aspect, either alone or in combination with one or more of the first to fourteenth aspects, the beam discovery information indicates a group of UEs. In a sixteenth aspect, either alone or in combination with one or more of the first to fifteenth aspects, the beam discovery configuration information indicates a QCL relationship between a first set of transmission resources associated with a first beam discovery signal and a second set of transmission resources associated with a second beam discovery signal, wherein at least one detected beam discovery signal includes at least one of the first beam discovery signal or the second beam discovery signal. In a seventeenth aspect, either alone or in combination with one or more of the first to sixteenth aspects, process 700 includes monitoring the beam discovery signal using a first receive beam associated with the first set of transmission resources and a second receive beam associated with the second set of transmission resources based on the QCL relationship. In an eighteenth aspect, either alone or in combination with one or more of the first to seventeenth aspects, the beam discovery configuration information indicates a multiplexing scheme for multiplexing a plurality of UEs including a UE. In a nineteenth aspect, alone or in combination with one or more of the first to eighteenth aspects, the multiplexing scheme includes at least one of a TDM scheme, an FDM scheme, or a CDM scheme.

[0144] In the twentieth aspect, either alone or in combination with one or more of the first to nineteenth aspects, process 700 includes sending a polling communication indicating a request for a beam discovery report associated with a detected beam discovery signal. In the twenty-first aspect, either alone or in combination with one or more of the first to twentieth aspects, the polling communication includes a DCI. In the twenty-second aspect, either alone or in combination with one or more of the first to twenty-first aspects, the polling communication includes a PDSCH communication. In the twenty-third aspect, either alone or in combination with one or more of the first to twenty-second aspects, the polling communication indicates signal information associated with the detected beam discovery signal. In the twenty-fourth aspect, either alone or in combination with one or more of the first to twenty-third aspects, the signal information indicates at least one of a sequence associated with the detected beam discovery signal or a resource associated with the detected beam discovery signal. In a twenty-fifth aspect, alone or in combination with one or more of the first to twenty-fourth aspects, the polling communication indicates one or more reporting resources for sending the beam discovery report. In a twenty-sixth aspect, alone or in combination with one or more of the first to twenty-fifth aspects, the process 700 includes receiving the beam discovery report based on the polling communication. In a twenty-seventh aspect, alone or in combination with one or more of the first to twenty-sixth aspects, the beam discovery report includes a MAC CE.

[0145] although Figure 7 Example blocks of process 700 are shown, but in some aspects, process 700 may include Figure 7 The blocks depicted may be additional blocks, fewer blocks, different blocks, or blocks arranged in a different manner than those depicted. Additionally or alternatively, two or more of the blocks of process 700 may be performed in parallel.

[0146] Figure 8 800 is a diagram illustrating an example process 800 performed, for example, by a network node according to the present disclosure. Example process 800 is an example in which a network node (eg, network node 504) performs operations associated with beam discovery operations for uplink transmit beam discovery associated with an uplink-only network node.

[0147] like Figure 8 As shown, in some aspects, process 800 may include sending, to at least one UE, first beam discovery configuration information associated with a beam discovery process for identifying a valid uplink beam associated with an uplink-only network node, wherein the first beam discovery configuration information indicates a beam discovery resource pool (block 810). For example, a network node (e.g., using Fig.10The communication manager 1008 and / or the sending component 1004 depicted in the figure may send first beam discovery configuration information associated with a beam discovery process for identifying a valid uplink beam associated with an uplink-only network node to at least one UE, wherein the first beam discovery configuration information indicates a beam discovery resource pool, as described above.

[0148] like Figure 8 As further shown, in some aspects, process 800 may include sending second beam discovery configuration information associated with the beam discovery process to an uplink-only network node (block 820). For example, a network node (e.g., using Fig.10 The communication manager 1008 and / or the transmitting component 1004 depicted in FIG. 1004 may transmit second beam discovery configuration information associated with the beam discovery process to the uplink-only network node, as described above.

[0149] like Figure 8 As further shown, in some aspects, process 800 may include receiving a beam discovery report indicating an association between at least one detected beam discovery signal and a UE in at least one UE (block 830). For example, a network node (e.g., using Fig.10 The communication manager 1008 and / or receiving component 1002 depicted in FIG. 1004 may receive a beam discovery report indicating an association between at least one detected beam discovery signal and a UE in at least one UE, as described above.

[0150] Process 800 may include additional aspects, such as any single aspect or any combination of aspects described below and / or in conjunction with one or more other processes described elsewhere herein.

[0151] In a first aspect, at least one detected beam discovery signal includes an SRS. In a second aspect, alone or in combination with the first aspect, the first beam discovery configuration information indicates a beam management SRS resource set associated with the SRS. In a third aspect, alone or in combination with one or more of the first and second aspects, the first beam discovery configuration information includes a radio resource control message indicating a transmit beam corresponding to the SRS.

[0152] In a fourth aspect, alone or in combination with one or more of the first to third aspects, at least one detected beam discovery signal comprises a PRACH signal. In a fifth aspect, alone or in combination with one or more of the first to fourth aspects, the first beam discovery configuration information indicates a PRACH preamble sequence associated with the beam discovery signal. In a sixth aspect, alone or in combination with one or more of the first to fifth aspects, the first beam discovery configuration information indicates a plurality of potential PRACH preamble sequences including a PRACH preamble sequence, and wherein the PRACH preamble sequence is randomly selected from the plurality of PRACH preamble sequences.

[0153] In the seventh aspect, alone or in combination with one or more of the first to sixth aspects, at least one detected beam discovery signal indicates beam discovery information. In the eighth aspect, alone or in combination with one or more of the first to seventh aspects, the beam discovery information indicates an identification of the UE and a transmit beam corresponding to the at least one detected beam discovery signal. In the ninth aspect, alone or in combination with one or more of the first to eighth aspects, at least one detected beam discovery signal explicitly indicates at least a portion of the beam discovery information. In the tenth aspect, alone or in combination with one or more of the first to ninth aspects, the position of at least one detected beam discovery signal implicitly indicates at least a portion of the beam discovery information. In the eleventh aspect, alone or in combination with one or more of the first to tenth aspects, the position of at least one detected beam discovery signal includes at least one of a time resource associated with the at least one detected beam discovery signal or a frequency resource associated with the at least one detected beam discovery signal.

[0154] In a twelfth aspect, alone or in combination with one or more of the first to eleventh aspects, the beam finding signal comprises a sequence indicating beam finding information. In a thirteenth aspect, alone or in combination with one or more of the first to twelfth aspects, the sequence is associated with SRS scrambling. In a fourteenth aspect, alone or in combination with one or more of the first to thirteenth aspects, the sequence comprises a PRACH sequence.

[0155] In a fifteenth aspect, alone or in combination with one or more of the first to fourteenth aspects, the beam discovery information indicates an identity of the UE. In a sixteenth aspect, alone or in combination with one or more of the first to fifteenth aspects, the first beam discovery configuration information indicates a resource set associated with a set of transmit beams corresponding to a plurality of beam discovery signals including at least one detected beam discovery signal. In a seventeenth aspect, alone or in combination with one or more of the first to sixteenth aspects, the first beam discovery configuration information indicates a beam discovery resource pool.

[0156] In the eighteenth aspect, alone or in combination with one or more of the first to seventeenth aspects, the first beam discovery configuration information indicates at least one transmission parameter for transmitting at least one beam discovery signal among a plurality of beam discovery signals including at least one detected beam discovery signal. In the nineteenth aspect, alone or in combination with one or more of the first to eighteenth aspects, the second beam discovery information indicates a group of UEs. In the twentieth aspect, alone or in combination with one or more of the first to nineteenth aspects, the second beam discovery configuration information indicates a QCL relationship between a first set of transmission resources associated with the first beam discovery signal and a second set of transmission resources associated with the second beam discovery signal, wherein at least one detected beam discovery signal includes at least one of the first beam discovery signal or the second beam discovery signal. In the twenty-first aspect, alone or in combination with one or more of the first to twentieth aspects, the second beam discovery configuration information indicates a multiplexing scheme for multiplexing a plurality of UEs including the UE. In a twenty-second aspect, alone or in combination with one or more of the first to twenty-first aspects, the multiplexing scheme includes at least one of a TDM scheme, an FDM scheme, or a CDM scheme.

[0157] In a twenty-third aspect, alone or in combination with one or more of the first to twenty-second aspects, the second beam discovery configuration information indicates a configuration for polling communication, the configuration indicating a request for a beam discovery report associated with a detected beam discovery signal. In a twenty-fourth aspect, alone or in combination with one or more of the first to twenty-third aspects, the polling communication includes DCI. In a twenty-fifth aspect, alone or in combination with one or more of the first to twenty-fourth aspects, the polling communication includes PDSCH communication.

[0158] In aspect 26, alone or in combination with one or more of aspects 1 to 25, the polling communication indicates signal information associated with the detected beam discovery signal. In aspect 27, alone or in combination with one or more of aspects 1 to 26, the signal information indicates at least one of a sequence associated with the detected beam discovery signal or a resource associated with the detected beam discovery signal. In aspect 28, alone or in combination with one or more of aspects 1 to 27, the polling communication indicates one or more reporting resources for sending a beam discovery report.

[0159] In aspect twenty-ninth, either alone or in combination with one or more of aspects one to twenty-eight, process 800 includes receiving an indication to a UE based on a beam discovery report. In aspect thirtieth, either alone or in combination with one or more of aspects one to twenty-nine, first beam discovery configuration information indicates a power climbing scheme for sending multiple beam discovery signals. In aspect thirty-first, either alone or in combination with one or more of aspects one to thirtieth, a reference power associated with the power climbing scheme includes a current transmit power associated with sending a signal to an active network node. In aspect thirty-second, either alone or in combination with one or more of aspects one to thirty-first, an initial transmit power associated with the power climbing scheme is based on a reference power and a backoff value.

[0160] In a thirty-third aspect, either alone or in combination with one or more of the first to thirty-second aspects, process 800 includes sending an RRC message indicating a backoff value. In a thirty-fourth aspect, either alone or in combination with one or more of the first to thirty-third aspects, the beam discovery configuration information indicates at least one of a power climbing step size and a number of power climbing steps. In a thirty-fifth aspect, either alone or in combination with one or more of the first to thirty-fourth aspects, the first beam discovery configuration information indicates a timing offset associated with a power climbing scheme.

[0161] In a thirty-sixth aspect, either alone or in combination with one or more of aspects 1 to 35, process 800 includes sending power control information indicating a transmit power for a plurality of beam discovery signals. In a thirty-seventh aspect, either alone or in combination with one or more of aspects 1 to 36, the power control information indicates a power offset relative to a reference power. In a thirty-eighth aspect, either alone or in combination with one or more of aspects 1 to 37, the reference power includes a current transmit power associated with sending a signal to an active network node. In a thirty-ninth aspect, either alone or in combination with one or more of aspects 1 to 38, the first beam discovery configuration information includes power control information.

[0162] although Figure 8 An example block diagram of process 800 is shown, but in some aspects, process 800 may include Figure 8 The blocks depicted may be additional blocks, fewer blocks, different blocks, or blocks arranged in a different manner than those depicted. Additionally or alternatively, two or more of the blocks of process 800 may be performed in parallel.

[0163] Fig. 9is a diagram of an example apparatus 900 for wireless communication according to the present disclosure. Apparatus 900 may be a UE, or a UE may include apparatus 900. In some aspects, 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, apparatus 900 may communicate with another apparatus 906 (such as a UE, a base station, or another wireless communication device) using receiving component 902 and transmitting component 904. As further shown, apparatus 900 may include a communication manager 908.

[0164] In some aspects, the apparatus 900 may be configured to perform Figure 5 Additionally or alternatively, the apparatus 900 may be configured to perform one or more processes described herein, such as Figure 6 The process 600. In some aspects, Fig. 9 The device 900 and / or one or more components shown may include a combination of Figure 2 Additionally or alternatively, Fig. 9 One or more of the components shown may be combined with Figure 2 Additionally or alternatively, one or more components in a set of components may be implemented at least in part as software stored in a memory. For example, a component (or a portion of a component) may be implemented as instructions or codes that are stored in a non-transitory computer-readable medium and can be executed by a controller or processor to perform the function or operation of the component.

[0165] The receiving component 902 may receive communications, such as reference signals, control information, data communications, or combinations thereof, from the device 906. The receiving component 902 may provide the received communications to one or more other components of the device 900. In some aspects, the receiving component 902 may perform signal processing (such as filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, demapping, equalization, interference cancellation, or decoding, etc.) on the received communications and may provide the processed signals to one or more other components of the device 900. In some aspects, the receiving component 902 may include combining Figure 2 One or more antennas, modems, demodulators, MIMO detectors, receive processors, controllers / processors, memories, or combinations thereof of the described UE.

[0166] Transmit component 904 may transmit communications, such as reference signals, control information, data communications, or combinations thereof, to device 906. In some aspects, one or more other components of device 900 may generate communications and may provide the generated communications to transmit component 904 for transmission to device 906. In some aspects, transmit component 904 may perform signal processing (such as filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding, etc.) on the generated communications and may transmit the processed signals to device 906. In some aspects, transmit component 904 may include combining Figure 2 One or more antennas, modems, modulators, transmit MIMO processors, transmit processors, controllers / processors, memories, or combinations thereof of the described UE. In some aspects, the transmit component 904 can be co-located with the receive component 902 in a transceiver.

[0167] In some examples, the means for sending, outputting, or transmitting (or the means for outputting for sending) may include the above in combination with Figure 2 One or more antennas, modulators, transmit MIMO processors, transmit processors, or a combination thereof of a UE are described.

[0168] In some examples, the means for receiving (or the means for obtaining) may include the above in combination with Figure 2 One or more antennas, demodulators, MIMO detectors, receive processors, or a combination thereof of a UE are described.

[0169] In some cases, a device may not actually send, for example, signals and / or data, but may have an interface (components for outputting) for outputting signals and / or data for transmission. For example, a processor may output signals and / or data to an RF front end via a bus interface for transmission. Similarly, a device may not actually receive signals and / or data, but may have an interface (components for obtaining) for obtaining signals and / or data received from another device. For example, a processor may obtain (or receive) signals and / or data from an RF front end via a bus interface for reception. In various aspects, the RF front end may include various components, including, for example, Figure 2 The transmit and receive processors, transmit and receive MIMO processors, modulators, demodulators, etc. described in the examples.

[0170] In some examples, the components for determining, selecting, detecting, and / or calculating may include the above combined Figure 2 Various processing system components of a UE are described, such as a receive processor, a transmit processor, a controller / processor, a memory, or a combination thereof.

[0171] The communication manager 908 and / or the receiving component 902 may receive beam discovery configuration information associated with identifying an effective uplink beam associated with an uplink-only network node, wherein the beam discovery configuration information indicates a beam discovery resource pool. In some aspects, the communication manager 908 may include combining Figure 2 One or more antennas, modems, controllers / processors, memories, or combinations thereof of the UE described herein. In some aspects, the communication manager 908 may include a receiving component 902 and / or a sending component 904. In some aspects, the communication manager 908 may be, be similar to, or include Figure 1 and Figure 2 The communication manager 140 depicted in, or included in, the communication manager.

[0172] The communication manager 908 and / or the transmitting component 904 may transmit a plurality of beam discovery signals using a plurality of resources of a beam discovery resource pool based on the beam discovery configuration information. The communication manager 908 and / or the receiving component 902 may receive a radio resource control message indicating a backoff value. The communication manager 908 and / or the receiving component 902 may receive power control information indicating a transmit power, wherein transmitting a plurality of beam discovery signals includes transmitting at least one beam discovery signal using the transmit power. The communication manager 908 and / or the receiving component 902 may receive a polling communication indicating a request for a beam discovery report associated with the detected beam discovery signal. The transmitting component 904 may transmit the beam discovery report based on the polling communication.

[0173] Fig. 9 The number and arrangement of components shown are provided as examples. In practice, there may be Fig. 9 Additional components, fewer components, different components, or components arranged in a different manner than those shown. Fig. 9 Two or more components shown may be implemented in a single component, or Fig. 9 The single component shown may be implemented as multiple distributed components. Additionally or alternatively, Fig. 9 The illustrated set (one or more) of components executable is described as being comprised of Fig. 9 Another group of components shown performs one or more functions.

[0174] Fig.101 is a diagram of an example apparatus 1000 for wireless communication according to the present disclosure. Apparatus 1000 may be a network node, or a network node may include apparatus 1000. In some aspects, apparatus 1000 includes a receiving component 1002 and a sending component 1004, which may communicate with each other (e.g., via one or more buses and / or one or more other components). As shown, apparatus 1000 may communicate with another apparatus 1006 (such as a UE, a base station, or another wireless communication device) using receiving component 1002 and sending component 1004. As further shown, apparatus 1000 may include a communication manager 1008.

[0175] In some aspects, the apparatus 1000 may be configured to perform Figure 5 Additionally or alternatively, the apparatus 1000 may be configured to perform one or more processes described herein, such as Figure 7 The process 700 Figure 8 In some aspects, Fig.10 The device 1000 and / or one or more components shown may include a combination of Figure 2 One or more components of the network node. Additionally or alternatively, Fig.10 One or more of the components shown may be combined with Figure 2 Additionally or alternatively, one or more components in a set of components may be implemented at least in part as software stored in a memory. For example, a component (or a portion of a component) may be implemented as instructions or codes that are stored in a non-transitory computer-readable medium and can be executed by a controller or processor to perform the function or operation of the component.

[0176] The receiving component 1002 may receive communications, such as reference signals, control information, data communications, or combinations thereof, from the device 1006. 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 (such as filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, demapping, equalization, interference cancellation, or decoding, etc.) on the received communications 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 combining Figure 2 One or more antennas, modems, demodulators, MIMO detectors, receiving processors, controllers / processors, memories or combinations thereof of the network node.

[0177] The transmitting component 1004 may transmit communications, such as reference signals, control information, data communications, or combinations thereof, to the device 1006. 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 (such as filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding, etc.) on the generated communications and may transmit the processed signals to the device 1006. In some aspects, the transmitting component 1004 may include combining Figure 2 One or more antennas, modems, modulators, transmit MIMO processors, transmit processors, controllers / processors, memories, or combinations thereof of the network node. In some aspects, the transmit component 1004 can be co-located with the receive component 1002 in a transceiver.

[0178] In some examples, a component for sending, outputting, or transmitting (or a component for outputting for sending) may include the above in combination with Figure 2 One or more antennas, modulators, transmit MIMO processors, transmit processors, or a combination thereof of a network node are described.

[0179] In some examples, the means for receiving (or the means for obtaining) may include the above in combination with Figure 2 One or more antennas, demodulators, MIMO detectors, receive processors, or a combination thereof of a network node described.

[0180] In some cases, a device may not actually send, for example, signals and / or data, but may have an interface (components for outputting) for outputting signals and / or data for transmission. For example, a processor may output signals and / or data to an RF front end via a bus interface for transmission. Similarly, a device may not actually receive signals and / or data, but may have an interface (components for obtaining) for obtaining signals and / or data received from another device. For example, a processor may obtain (or receive) signals and / or data from an RF front end via a bus interface for reception. In various aspects, the RF front end may include various components, including, for example, Figure 2 The transmit and receive processors, transmit and receive MIMO processors, modulators, demodulators, etc. described in the examples.

[0181] In some examples, the components for determining, selecting, detecting, and / or calculating may include the above combined Figure 2 Various processing system components of a network node are described, such as a receive processor, a transmit processor, a controller / processor, memory, or a combination thereof.

[0182] The communication manager 1008 and / or the receiving component 1002 may receive beam discovery configuration information associated with a beam discovery process for identifying a valid uplink beam associated with an uplink-only network node, wherein the beam discovery configuration information indicates a beam discovery resource pool. In some aspects, the communication manager 1008 may include in conjunction with Figure 2 One or more antennas, modems, controllers / processors, memories, or combinations thereof of the network nodes described herein. In some aspects, the communication manager 1008 may include the receiving component 1002 and / or the sending component 1004. In some aspects, the communication manager 1008 may be, be similar to, or include Figure 1 and Figure 2 The communication manager 140 depicted in, or included in, the communication manager.

[0183] The communication manager 1008 and / or the receiving component 1002 may receive at least one detected beam discovery signal using at least one resource of the beam discovery resource pool based on the beam discovery configuration information. The communication manager 1008 and / or the receiving component 1002 may receive beam discovery identification information associating at least one detected beam discovery signal with the UE. The communication manager 1008 and / or the receiving component 1002 may monitor the beam discovery signal using a first receive beam associated with a first set of transmit resources and a second receive beam associated with a second set of transmit resources based on a QCL relationship. The communication manager 1008 and / or the transmitting component 1004 may send a polling communication indicating a request for a beam discovery report associated with the detected beam discovery signal. The communication manager 1008 and / or the receiving component 1002 may receive the beam discovery report based on the polling communication.

[0184] The communication manager 1008 and / or the sending component 1004 may send, to at least one UE, first beam discovery configuration information associated with a beam discovery process for identifying an effective uplink beam associated with an uplink-only network node, wherein the first beam discovery configuration information indicates a beam discovery resource pool. The communication manager 1008 and / or the sending component 1004 may send, to the uplink-only network node, second beam discovery configuration information associated with the beam discovery process. The communication manager 1008 and / or the receiving component 1002 may receive a beam discovery report indicating an association between at least one detected beam discovery signal and a UE in at least one UE. The communication manager 1008 and / or the receiving component 1002 may receive an indication to the UE based on the beam discovery report. The communication manager 1008 and / or the sending component 1004 may send a radio resource control message indicating a backoff value. The communication manager 1008 and / or the sending component 1004 may send power control information indicating a transmit power for a plurality of beam discovery signals.

[0185] Fig.10 The number and arrangement of components shown are provided as examples. In practice, there may be Fig.10 Additional components, fewer components, different components, or components arranged in a different manner than those shown. Fig.10 Two or more components shown may be implemented in a single component, or Fig.10 The single component shown may be implemented as multiple distributed components. Additionally or alternatively, Fig.10 The illustrated set (one or more) of components executable is described as being comprised of Fig.10 Another group of components shown performs one or more functions.

[0186] The following provides an overview of some aspects of the disclosure:

[0187] Aspect 1: A method of wireless communication performed by a device of a user equipment (UE), the method comprising: receiving beam discovery configuration information associated with identifying a valid uplink beam associated with an uplink-only network node, wherein the beam discovery configuration information indicates a beam discovery resource pool; and sending multiple beam discovery signals using multiple resources of the beam discovery resource pool based on the beam discovery configuration information.

[0188] Aspect 2: The method according to aspect 1, wherein transmitting the plurality of beam discovery signals comprises transmitting a first beam discovery signal using a first transmission beam and transmitting a second beam discovery signal using a second transmission beam.

[0189] Aspect 3: A method according to Aspect 2, wherein based on the second transmit beam being the first transmit beam, a first set of transmit resources associated with the first beam discovery signal is quasi-co-located with a second set of transmit resources associated with the second beam discovery signal.

[0190] Aspect 4: A method according to Aspect 2, wherein based on the fact that the second transmit beam is different from the first transmit beam, a first set of transmit resources associated with the first beam discovery signal is quasi-co-located with a second set of transmit resources associated with the second beam discovery signal.

[0191] Aspect 5: The method according to any one of aspects 1 to 4, wherein the beam finding signal of the plurality of beam finding signals comprises a sounding reference signal (SRS).

[0192] Aspect 6: The method according to aspect 5, wherein the beam discovery configuration information indicates a beam-managed SRS resource set associated with the SRS.

[0193] Aspect 7: The method according to any one of Aspects 5 or 6, wherein the beam discovery configuration information includes a radio resource control message indicating a transmission beam corresponding to the SRS.

[0194] Aspect 8: The method according to any one of aspects 1 to 7, wherein the beam discovery signal of the plurality of beam discovery signals comprises a physical random access channel (PRACH) signal.

[0195] Aspect 9: The method according to aspect 8, wherein the beam discovery configuration information indicates a PRACH preamble sequence associated with the beam discovery signal.

[0196] Aspect 10: The method according to aspect 9, wherein the beam finding configuration information indicates a plurality of potential PRACH preamble sequences including the PRACH preamble sequence, and wherein the PRACH preamble sequence is randomly selected from the plurality of PRACH preamble sequences.

[0197] Aspect 11: The method according to any one of aspects 1 to 10, wherein sending the plurality of beam discovery signals comprises sending the plurality of beam discovery signals based on a power ramping scheme.

[0198] Aspect 12: The method according to aspect 11, wherein the reference power associated with the power ramping scheme comprises a current transmit power associated with transmitting a signal to an active network node.

[0199] Aspect 13: The method according to any one of aspects 11 or 12, wherein an initial transmit power associated with the power ramping scheme is based on a reference power and a back-off value.

[0200] Aspect 14: The method according to aspect 13, the method further comprising receiving a radio resource control message indicating the backoff value.

[0201] Aspect 15: The method according to any one of aspects 11 to 14, wherein the beam finding configuration information indicates at least one of a power climbing step size and a number of power climbing steps.

[0202] Aspect 16: The method according to any one of aspects 11 to 15, wherein the beam discovery configuration information indicates a timing offset associated with the power ramping scheme.

[0203] Aspect 17: A method according to any one of Aspects 1 to 16, wherein sending the multiple beam discovery signals includes sending at least one beam discovery signal using a transmission power based on a link quality associated with a communication link between the UE and an active uplink network node.

[0204] Aspect 18: According to the method described in any one of Aspects 1 to 17, the method further comprises receiving power control information indicating a transmit power, wherein sending the plurality of beam discovery signals comprises sending at least one beam discovery signal using the transmit power.

[0205] Aspect 19: The method according to Aspect 18, wherein the power control information indicates a power offset relative to a reference power.

[0206] Aspect 20: The method according to aspect 19, wherein the reference power comprises a current transmit power associated with transmitting a signal to an active network node.

[0207] Aspect 21: A method according to any one of Aspects 18 to 20, wherein the beam discovery configuration information includes the power control information.

[0208] Aspect 22: The method according to any one of Aspects 1 to 21, wherein a beam discovery signal among the plurality of beam discovery signals indicates beam discovery information.

[0209] Aspect 23: A method according to Aspect 22, wherein the beam discovery information indicates an identifier of the UE and a transmission beam corresponding to the beam discovery signal.

[0210] Aspect 24: A method according to any one of Aspects 22 or 23, wherein the beam finding signal explicitly indicates at least a portion of the beam finding information.

[0211] Aspect 25: A method according to any one of Aspects 22 to 24, wherein the position of the beam finding signal implicitly indicates at least a portion of the beam finding information.

[0212] Aspect 26: The method according to Aspect 25, wherein the location of the beam discovery includes at least one of a time resource associated with the beam discovery signal or a frequency resource associated with the beam discovery signal.

[0213] Aspect 27: A method according to any one of Aspects 22 to 26, wherein the beam discovery signal comprises a sequence indicating the beam discovery information.

[0214] Aspect 28: The method according to aspect 27, wherein the sequence is associated with sounding reference signal scrambling.

[0215] Aspect 29: A method according to any one of aspects 27 or 28, wherein the sequence comprises a physical random access channel sequence.

[0216] Aspect 30: A method according to any one of Aspects 22 to 29, wherein the beam discovery information indicates the identity of the UE.

[0217] Aspect 31: A method according to any one of Aspects 1 to 30, wherein the beam discovery configuration information indicates a resource set associated with a set of transmit beams corresponding to the plurality of beam discovery signals.

[0218] Aspect 32: The method according to any one of Aspects 1 to 31, wherein the beam discovery configuration information indicates the beam discovery resource pool.

[0219] Aspect 33: The method according to Aspect 32, wherein the beam finding configuration information indicates at least one transmission parameter used to send at least one beam finding signal among the multiple beam finding signals.

[0220] Aspect 34: The method according to any one of aspects 1 to 33, the method also comprising receiving a polling communication indicating a request for a beam finding report associated with the detected beam finding signal.

[0221] Aspect 35: The method according to aspect 34, wherein the polling communication includes downlink control information.

[0222] Aspect 36: A method according to any one of aspects 34 or 35, wherein the polling communication comprises a physical downlink shared channel communication.

[0223] Aspect 37: A method according to any one of aspects 34 to 36, wherein the polling communication indicates signal information associated with the detected beam discovery signal.

[0224] Aspect 38: The method according to aspect 37, wherein the signal information indicates at least one of a sequence associated with the detected beam discovery signal or a resource associated with the detected beam discovery signal.

[0225] Aspect 39: A method according to any one of Aspects 34 to 38, wherein the polling communication indicates one or more reporting resources used to send the beam discovery report.

[0226] Aspect 40: The method according to any one of aspects 34 to 39, the method also includes sending the beam discovery report based on the polling communication.

[0227] Aspect 41: The method according to aspect 40, wherein the beam discovery report includes a medium access control control element.

[0228] Aspect 42: A method of wireless communication performed by an apparatus of an uplink-only network node, the method comprising: receiving beam discovery configuration information associated with a beam discovery process for identifying a valid uplink beam associated with the uplink-only network node, wherein the beam discovery configuration information indicates a beam discovery resource pool; receiving at least one detected beam discovery signal using at least one resource of the beam discovery resource pool based on the beam discovery configuration information; and receiving beam discovery identification information associating the at least one detected beam discovery signal with a user equipment (UE).

[0229] Aspect 43: The method according to aspect 42, wherein the at least one detected beam finding signal comprises a sounding reference signal (SRS).

[0230] Aspect 44: A method according to any one of aspects 42 or 43, wherein the at least one detected beam finding signal comprises a physical random access channel (PRACH) signal.

[0231] Aspect 45: A method according to any one of Aspects 42 to 44, wherein the at least one detected beam finding signal indicates beam finding information.

[0232] Aspect 46: A method according to Aspect 45, wherein the beam discovery information indicates an identification of the UE and a transmission beam corresponding to the at least one detected beam discovery signal.

[0233] Aspect 47: A method according to any one of Aspects 45 or 46, wherein the at least one detected beam finding signal explicitly indicates at least a portion of the beam finding information.

[0234] Aspect 48: A method according to any one of Aspects 45 to 47, wherein the position of the at least one detected beam finding signal implicitly indicates at least a portion of the beam finding information.

[0235] Aspect 49: A method according to Aspect 48, wherein the location of the at least one detected beam discovery signal includes at least one of a time resource associated with the at least one detected beam discovery signal or a frequency resource associated with the at least one detected beam discovery signal.

[0236] Aspect 50: A method according to any one of Aspects 45 to 49, wherein the beam discovery signal comprises a sequence indicating the beam discovery information.

[0237] Aspect 51: The method according to aspect 50, wherein the sequence is associated with sounding reference signal scrambling.

[0238] Aspect 52: A method according to any one of aspects 50 or 51, wherein the sequence comprises a physical random access channel sequence.

[0239] Aspect 53: A method according to any one of Aspects 45 to 52, wherein the beam discovery information indicates the identity of the UE.

[0240] Aspect 54: A method according to any one of Aspects 45 to 53, wherein the beam discovery configuration information indicates a resource set associated with a set of transmit beams corresponding to multiple beam discovery signals, wherein the multiple beam discovery signals include the at least one detected beam discovery signal.

[0241] Aspect 55: A method according to any one of Aspects 45 to 54, wherein the beam discovery configuration information indicates the beam discovery resource pool.

[0242] Aspect 56: The method according to Aspect 55, wherein the beam finding configuration information indicates at least one transmission parameter associated with at least one beam finding signal among a plurality of beam finding signals including the at least one detected beam finding signal.

[0243] Aspect 57: A method according to any one of Aspects 45 to 56, wherein the beam discovery information indicates a group of UEs.

[0244] Aspect 58: A method according to any one of Aspects 42 to 57, wherein the beam finding configuration information indicates a quasi-co-site (QCL) relationship between a first set of transmission resources associated with a first beam finding signal and a second set of transmission resources associated with a second beam finding signal, wherein the at least one detected beam finding signal includes at least one of the first beam finding signal or the second beam finding signal.

[0245] Aspect 59: According to the method of Aspect 58, the method also includes monitoring a beam discovery signal based on the QCL relationship using a first receive beam associated with the first set of transmit resources and a second receive beam associated with the second set of transmit resources.

[0246] Aspect 60: A method according to any one of Aspects 42 to 59, wherein the beam discovery configuration information indicates a multiplexing scheme for multiplexing a plurality of UEs including the UE.

[0247] Aspect 61: The method according to aspect 60, wherein the multiplexing scheme includes at least one of a time division multiplexing scheme, a frequency division multiplexing scheme, or a code division multiplexing scheme.

[0248] Aspect 62: The method according to any one of aspects 42 to 61, the method further comprising sending a polling communication indicating a request for a beam finding report associated with the detected beam finding signal.

[0249] Aspect 63: The method according to aspect 62, wherein the polling communication includes downlink control information.

[0250] Aspect 64: A method according to any one of aspects 62 or 63, wherein the polling communication comprises a physical downlink shared channel communication.

[0251] Aspect 65: A method according to any one of Aspects 62 to 64, wherein the polling communication indicates signal information associated with the detected beam discovery signal.

[0252] Aspect 66: The method according to Aspect 65, wherein the signal information indicates at least one of a sequence associated with the detected beam discovery signal or a resource associated with the detected beam discovery signal.

[0253] Aspect 67: A method according to any one of Aspects 62 to 66, wherein the polling communication indicates one or more reporting resources for sending the beam discovery report.

[0254] Aspect 68: The method according to any one of Aspects 62 to 67, the method also includes receiving the beam discovery report based on the polling communication.

[0255] Aspect 69: The method according to aspect 68, wherein the beam discovery report includes a medium access control control element.

[0256] Aspect 70: A method of wireless communication performed by a device of a network node, the method comprising: sending first beam discovery configuration information associated with a beam discovery process for identifying a valid uplink beam associated with an uplink-only network node to at least one user equipment (UE), wherein the first beam discovery configuration information indicates a beam discovery resource pool; sending second beam discovery configuration information associated with the beam discovery process to the uplink-only network node; and receiving a beam discovery report indicating an association between at least one detected beam discovery signal and a UE among the at least one UE.

[0257] Aspect 71: The method according to aspect 70, wherein the at least one detected beam finding signal comprises a sounding reference signal (SRS).

[0258] Aspect 72: The method according to Aspect 71, wherein the first beam discovery configuration information indicates a beam-managed SRS resource set associated with the SRS.

[0259] Aspect 73: The method according to any one of Aspects 71 or 72, wherein the first beam discovery configuration information includes a radio resource control message indicating a transmission beam corresponding to the SRS.

[0260] Aspect 74: A method according to any one of aspects 70 to 73, wherein the at least one detected beam finding signal comprises a physical random access channel (PRACH) signal.

[0261] Aspect 75: The method according to Aspect 74, wherein the first beam discovery configuration information indicates a PRACH preamble sequence associated with the beam discovery signal.

[0262] Aspect 76: The method according to aspect 75, wherein the first beam discovery configuration information indicates a plurality of potential PRACH preamble sequences including the PRACH preamble sequence, and wherein the PRACH preamble sequence is randomly selected from the plurality of PRACH preamble sequences.

[0263] Aspect 77: A method according to any one of Aspects 70 to 76, wherein the at least one detected beam finding signal indicates beam finding information.

[0264] Aspect 78: A method according to Aspect 77, wherein the beam discovery information indicates an identification of the UE and a transmission beam corresponding to the at least one detected beam discovery signal.

[0265] Aspect 79: A method according to any one of Aspects 77 or 78, wherein the at least one detected beam finding signal explicitly indicates at least a portion of the beam finding information.

[0266] Aspect 80: A method according to any one of Aspects 77 to 79, wherein the position of the at least one detected beam finding signal implicitly indicates at least a portion of the beam finding information.

[0267] Aspect 81: A method according to Aspect 80, wherein the location of the at least one detected beam discovery signal includes at least one of a time resource associated with the at least one detected beam discovery signal or a frequency resource associated with the at least one detected beam discovery signal.

[0268] Aspect 82: A method according to any one of Aspects 77 to 81, wherein the beam discovery signal comprises a sequence indicating the beam discovery information.

[0269] Aspect 83: The method according to aspect 82, wherein the sequence is associated with sounding reference signal scrambling.

[0270] Aspect 84: A method according to any one of aspects 82 or 83, wherein the sequence comprises a physical random access channel sequence.

[0271] Aspect 85: A method according to any one of Aspects 77 to 84, wherein the beam discovery information indicates the identity of the UE.

[0272] Aspect 86: A method according to any one of Aspects 77 to 85, wherein the first beam discovery configuration information indicates a resource set associated with a set of transmit beams corresponding to multiple beam discovery signals, and the multiple beam discovery signals include the at least one detected beam discovery signal.

[0273] Aspect 87: A method according to any one of Aspects 77 to 86, wherein the first beam discovery configuration information indicates the beam discovery resource pool.

[0274] Aspect 88: A method according to Aspect 87, wherein the first beam finding configuration information indicates at least one transmission parameter for transmitting at least one beam finding signal among a plurality of beam finding signals including the at least one detected beam finding signal.

[0275] Aspect 89: A method according to any one of Aspects 70 to 88, wherein the second beam discovery information indicates a group of UEs.

[0276] Aspect 90: A method according to any one of Aspects 70 to 89, wherein the second beam discovery configuration information indicates a quasi-co-site (QCL) relationship between a first set of transmission resources associated with a first beam discovery signal and a second set of transmission resources associated with a second beam discovery signal, wherein the at least one detected beam discovery signal includes at least one of the first beam discovery signal or the second beam discovery signal.

[0277] Aspect 91: A method according to any one of Aspects 70 to 90, wherein the second beam discovery configuration information indicates a multiplexing scheme for multiplexing a plurality of UEs including the UE.

[0278] Aspect 92: The method according to aspect 91, wherein the multiplexing scheme includes at least one of a time division multiplexing scheme, a frequency division multiplexing scheme, or a code division multiplexing scheme.

[0279] Aspect 93: A method according to any one of Aspects 70 to 92, wherein the second beam discovery configuration information indicates a configuration for polling communication, the configuration indicating a request for a beam discovery report associated with a detected beam discovery signal.

[0280] Aspect 94: The method according to Aspect 93, wherein the polling communication includes downlink control information.

[0281] Aspect 95: A method according to any one of aspects 93 or 94, wherein the polling communication comprises a physical downlink shared channel communication.

[0282] Aspect 96: A method according to any one of Aspects 93 to 95, wherein the polling communication indicates signal information associated with the detected beam discovery signal.

[0283] Aspect 97: The method according to Aspect 96, wherein the signal information indicates at least one of a sequence associated with the detected beam discovery signal or a resource associated with the detected beam discovery signal.

[0284] Aspect 98: A method according to any one of Aspects 93 to 97, wherein the polling communication indicates one or more reporting resources used to send the beam discovery report.

[0285] Aspect 99: According to any one of Aspects 93 to 98, the method also includes receiving an indication to the UE based on the beam discovery report.

[0286] Aspect 100: A method according to any one of aspects 70 to 99, wherein the first beam discovery configuration information indicates a power ramping scheme for sending multiple beam discovery signals.

[0287] Aspect 101: The method according to aspect 100, wherein the reference power associated with the power ramping scheme comprises a current transmit power associated with transmitting a signal to an active network node.

[0288] Aspect 102: The method according to any one of aspects 100 or 101, wherein an initial transmit power associated with the power ramping scheme is based on a reference power and a back-off value.

[0289] Aspect 103: The method according to aspect 102, further comprising sending a radio resource control message indicating the backoff value.

[0290] Aspect 104: The method according to any one of aspects 100 to 103, wherein the beam finding configuration information indicates at least one of a power climbing step size and a number of power climbing steps.

[0291] Aspect 105: The method according to any one of aspects 100 to 104, wherein the first beam discovery configuration information indicates a timing offset associated with the power ramping scheme.

[0292] Aspect 106: According to any one of aspects 70 to 105, the method further comprises sending power control information indicating the transmit power for the plurality of beam discovery signals.

[0293] Aspect 107: The method according to aspect 106, wherein the power control information indicates a power offset relative to a reference power.

[0294] Aspect 108: The method according to aspect 107, wherein the reference power comprises a current transmit power associated with transmitting a signal to an active network node.

[0295] Aspect 109: A method according to any one of aspects 106 to 108, wherein the first beam discovery configuration information includes the power control information.

[0296] Aspect 110: An apparatus for performing wireless communications 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 one or more of the methods described in Aspects 1 to 41.

[0297] Aspect 111: 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 41.

[0298] Aspect 112: 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 41.

[0299] Aspect 113: 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 41.

[0300] Aspect 114: A non-transitory computer-readable medium storing an instruction set for wireless communication, the instruction set comprising one or more instructions which, when executed by one or more processors of a device, cause the device to perform one or more of the methods described in aspects 1 to 41.

[0301] Aspect 115: 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 one or more of the methods described in Aspects 42 to 69.

[0302] Aspect 116: An apparatus for wireless communication, the apparatus 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 42 to 69.

[0303] Aspect 117: An apparatus for wireless communication, the apparatus comprising at least one component for performing the method according to one or more of aspects 42 to 69.

[0304] Aspect 118: A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by a processor to perform the method according to one or more of aspects 42 to 69.

[0305] Aspect 119: A non-transitory computer-readable medium storing an instruction set for wireless communication, the instruction set comprising one or more instructions which, when executed by one or more processors of a device, cause the device to perform one or more of the methods described in aspects 42 to 69.

[0306] Aspect 120: 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 one or more of the methods described in Aspects 70 to 109.

[0307] Aspect 121: An apparatus for wireless communication, the apparatus 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 70 to 109.

[0308] Aspect 122: An apparatus for wireless communication, the apparatus comprising at least one component for performing the method according to one or more of aspects 70 to 109.

[0309] Aspect 123: A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by a processor to perform the method according to one or more of aspects 70 to 109.

[0310] Aspect 124: A non-transitory computer-readable medium storing an instruction set for wireless communication, the instruction set comprising one or more instructions which, when executed by one or more processors of a device, cause the device to perform one or more of the methods described in aspects 70 to 109.

[0311] While the foregoing disclosure provides illustration and description, it is not intended to be exhaustive or to limit the aspects to the precise forms disclosed. Modifications and variations are possible in light of the above disclosure or may be acquired from practice of these aspects.

[0312] As used herein, the term "component" is intended to be broadly interpreted as a combination of hardware and / or hardware and software. Whether referred to as software, firmware, middleware, microcode, hardware description language or other names, "software" should be broadly interpreted as meaning instructions, instruction sets, codes, code segments, program codes, programs, subroutines, software modules, applications, software applications, software packages, routines, subroutines, objects, executable files, threads of execution, processes and / or functions, etc. As used herein, a "processor" is implemented in a combination of hardware and / or hardware and software. It will be clear that the systems and / or methods described herein can be implemented by a combination of hardware and / or hardware and software in different forms. The actual dedicated control hardware or software code used to implement these systems and / or methods does not limit various aspects. Therefore, there is no reference to specific software codes herein to describe the operation and behavior of the system and / or method, because those skilled in the art will understand that software and hardware can be designed to implement the system and / or method based at least in part on the description herein.

[0313] As used herein, "satisfying a threshold" may mean that a value is 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, or not equal to a threshold, etc., depending on the context.

[0314] Although specific combinations of features are set forth in the claims and / or disclosed in the specification, these combinations are not intended to limit the disclosure of the various aspects. Many of these features can be combined in a manner that is not specifically described in the claims and / or disclosed in the specification. The disclosure of each aspect includes each dependent claim combined with each other claim in the claim set. As used herein, a phrase referring to "at least one of" a list of items refers to any combination of these items (including a single member). As an example, "at least one of a, b, or c" is intended to cover a, b, c, a+b, a+c, b+c, and a+b+c, as well as any combination with multiple identical elements (e.g., a+a, a+a+a, a+a+b, a+a+c, a+b+b, a+c+c, b+b, b+b+b, b+b+c, c+c, and c+c+c, or any other ordering of a, b, and c).

[0315] Any element, action or instruction used herein should not be interpreted as critical or necessary unless explicitly stated. In addition, as used herein, the articles "one" and "a kind of" are intended to include one or more items and can be used interchangeably with "one or more". In addition, as used herein, the article "said" is intended to include one or more items connected to the article "said", and can be used interchangeably with "one or more". In addition, as used herein, the terms "set" and "group" are intended to include one or more items and can be used interchangeably with "one or more". If only one item is intended to be referred to, the phrase "only one" or similar terms are used. Moreover, as used herein, the term "having" etc. is intended to be an open term, which does not limit the elements they modify (for example, "an element having" A may also have B). In addition, the phrase "based on" is intended to mean "based at least in part on", unless explicitly stated otherwise. Furthermore, as used herein, the term "or" when used in a series is intended to be open-ended and used interchangeably with "and / or" unless explicitly stated otherwise (eg, if used in conjunction with "either" or "only one of").

Claims

1. A user equipment (UE) for wireless communication, the user equipment (UE) comprising: Memory; and one or more processors coupled to the memory, the one or more processors configured to: receiving beam discovery configuration information associated with identifying a valid uplink beam associated with an uplink-only network node, wherein the beam discovery configuration information indicates a beam discovery resource pool; as well as A plurality of beam discovery signals are sent using a plurality of resources of the beam discovery resource pool based on the beam discovery configuration information.

2. The UE according to claim 1, wherein, in order to send the multiple beam discovery signals, the one or more processors are configured to send a first beam discovery signal using a first transmission beam and send a second beam discovery signal using a second transmission beam.

3. The UE of claim 2, wherein based on the second transmit beam being the first transmit beam, a first set of transmit resources associated with the first beam discovery signal is quasi-co-located with a second set of transmit resources associated with the second beam discovery signal.

4. The UE according to claim 2, wherein based on the second transmission beam being different from the first transmission beam, a first set of transmission resources associated with the first beam discovery signal is different from a second set of transmission resources associated with the second beam discovery signal and is quasi-co-located. The UE of claim 1 , wherein the beam discovery signal among the plurality of beam discovery signals comprises a sounding reference signal (SRS). 6 . The UE of claim 1 , wherein the beam discovery signal among the plurality of beam discovery signals comprises a physical random access channel (PRACH) signal. 7 . The UE of claim 1 , wherein to transmit the plurality of beam discovery signals, the one or more processors are configured to transmit the plurality of beam discovery signals based on a power ramping scheme.

8. The UE of claim 7, wherein an initial transmit power associated with the power ramping scheme is based on a reference power and a backoff value.

9. The UE of claim 7, wherein the beam discovery configuration information indicates at least one of a power climbing step size, a number of power climbing steps, or a timing offset associated with the power climbing scheme.

10. The UE of claim 1, wherein, in order to send the multiple beam discovery signals, the one or more processors are configured to send at least one beam discovery signal using a transmission power based on a link quality associated with a communication link between the UE and an active uplink network node.

11. The UE of claim 1, wherein the one or more processors are further configured to receive power control information indicating a transmit power, wherein sending the plurality of beam discovery signals comprises sending at least one beam discovery signal using the transmit power.

12. The UE according to claim 1, wherein a beam discovery signal among the multiple beam discovery signals indicates beam discovery information, wherein the beam discovery information indicates an identification of the UE and a transmission beam corresponding to the beam discovery signal.

13. The UE according to claim 12, wherein the beam discovery signal explicitly indicates at least a portion of the beam discovery information.

14. The UE according to claim 12, wherein the location of the beam discovery signal implicitly indicates at least a portion of the beam discovery information, wherein the location of the beam discovery includes at least one of a time resource associated with the beam discovery signal or a frequency resource associated with the beam discovery signal.

15. The UE according to claim 12, wherein the beam discovery signal includes a sequence indicating the beam discovery information. 16 . The UE of claim 12 , wherein the beam discovery configuration information indicates a resource set associated with a set of transmission beams corresponding to the plurality of beam discovery signals.

17. The UE according to claim 12, wherein the beam discovery configuration information indicates the beam discovery resource pool. 18 . The UE according to claim 12 , wherein the beam discovery configuration information indicates at least one transmission parameter for transmitting at least one beam discovery signal among the plurality of beam discovery signals.

19. The UE of claim 12, wherein the one or more processors are further configured to receive a polling communication indicating a request for a beam finding report associated with the detected beam finding signal.

20. The UE of claim 19, wherein the polling communication comprises at least one of downlink control information or a physical downlink shared channel communication.

21. The UE of claim 19, wherein the polling communication indicates signal information associated with the detected beam discovery signal.

22. The UE of claim 19, wherein the polling communication indicates one or more reporting resources for sending the beam discovery report.

23. The UE of claim 19, wherein the one or more processors are further configured to send the beam discovery report based on the polling communication.

24. The UE of claim 19, wherein the beam discovery report comprises a medium access control control element.

25. An uplink-only network node for wireless communications, the uplink-only network node comprising: Memory; and one or more processors coupled to the memory, the one or more processors configured to: receiving beam discovery configuration information associated with a beam discovery process for identifying a valid uplink beam associated with the uplink-only network node, wherein the beam discovery configuration information indicates a beam discovery resource pool; receiving at least one detected beam discovery signal using at least one resource of the beam discovery resource pool based on the beam discovery configuration information; as well as Beam finding identification information is received that associates the at least one detected beam finding signal with a user equipment (UE).

26. An uplink-only network node according to claim 25, wherein the at least one detected beam discovery signal indicates beam discovery information, and the beam discovery information indicates an identification of the UE and a transmission beam corresponding to the at least one detected beam discovery signal.

27. A network node for wireless communication, the network node comprising: Memory; and one or more processors coupled to the memory, the one or more processors configured to: transmitting, to at least one user equipment (UE), first beam discovery configuration information associated with a beam discovery procedure for identifying a valid uplink beam associated with an uplink-only network node, wherein the first beam discovery configuration information indicates a beam discovery resource pool; sending second beam discovery configuration information associated with the beam discovery process to the uplink-only network node; as well as A beam discovery report is received indicating an association between at least one detected beam discovery signal and a UE among the at least one UE.

28. The network node according to claim 27, wherein the second beam discovery configuration information indicates a multiplexing scheme for multiplexing a plurality of UEs including the UE.

29. A method of wireless communication performed by a device of a user equipment (UE), the method comprising: receiving beam discovery configuration information associated with identifying a valid uplink beam associated with an uplink-only network node, wherein the beam discovery configuration information indicates a beam discovery resource pool; as well as A plurality of beam discovery signals are sent using a plurality of resources of the beam discovery resource pool based on the beam discovery configuration information.

30. The method according to claim 29, wherein a beam discovery signal among the multiple beam discovery signals indicates beam discovery information, wherein the beam discovery information indicates an identification of the UE and a transmission beam corresponding to the beam discovery signal.

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