Beam-Based Configuration Grant - Small Data Transfer Opportunity

Abstract

Various aspects of the present disclosure generally relate to wireless communications. In some aspects, a user equipment (UE) may receive a configuration message from a base station indicating a configuration grant-small data transfer (CG-SDT) group that includes the UE. The CG-SDT group is associated with a downlink beam of the base station and one or more CG-SDT opportunities. The UE may transmit uplink communications to the base station within the one or more CG-SDT opportunities using an uplink beam of the UE that corresponds to the downlink beam of the UE, and the downlink beam of the UE is associated with a downlink beam of the base station that is used to transmit at least one of a configuration message, a paging message, or a reference signal. Numerous other aspects are provided.

Description

[Technical Field]

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS This patent application claims priority to U.S. Provisional Patent Application No. 62 / 706,077, filed July 30, 2020, entitled "BEAM-BASED PRECONFIGURED UPLINK RESOURCE OCCASIONS," and U.S. Non-Provisional Patent Application No. 17 / 443,904, filed July 28, 2021, entitled "BEAM-BASED CONFIGURED GRANT-SMALL DATA TRANSFER OCCASIONS," both of which are expressly incorporated herein by reference.

[0002] Aspects of the present disclosure generally relate to wireless communications and techniques and apparatus for beam-based configuration grant-small data transfer opportunities. [Background technology]

[0003] Wireless communication systems are widely deployed to provide various telecommunication services such as telephony, video, data, messaging, and broadcasts. Typical wireless communication systems may employ multiple-access technologies capable of supporting communication with multiple users by sharing available system resources (e.g., bandwidth, transmit power, etc.). Examples of such multiple-access technologies include code division multiple access (CDMA) systems, time division multiple access (TDMA) systems, frequency division multiple access (FDMA) systems, orthogonal frequency division multiple access (OFDMA) systems, single-carrier frequency division multiple access (SC-FDMA) systems, time division synchronous code division multiple access (TD-SCDMA) systems, and Long Term Evolution (LTE). LTE / LTE-Advanced is a set of extensions to the Universal Mobile Telecommunications System (UMTS) mobile standard promulgated by the 3rd Generation Partnership Project (3GPP®).

[0004] A wireless network may include one or more base stations that support communication for a user equipment (UE) or multiple UEs. A UE may communicate with a base station via downlink and uplink communications. "Downlink" (or "DL") refers to the communication link from a base station to a UE, and "uplink" (or "UL") refers to the communication link from a UE to a base station.

[0005] The above multiple access technologies have been adopted in various telecommunications standards to provide common protocols that allow different UEs to communicate on a city, national, regional, and / or global scale. NR, sometimes referred to as 5G, is a set of extensions to the LTE mobile standard promulgated by 3GPP. New Radio (NR) is designed to better support mobile broadband Internet access by improving spectral efficiency, lowering costs, improving service, utilizing new spectrum, using orthogonal frequency division multiplexing (OFDM) with cyclic prefix (CP) (CP-OFDM) on the downlink and 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, better integrating with other open standards, and supporting beamforming, multiple-input multiple-output (MIMO) antenna technology, and carrier aggregation. As demand for mobile broadband access continues to grow, further improvements in LTE, NR, and other radio access technologies remain useful. Summary of the Invention [Means for solving the problem]

[0006] Certain aspects described herein relate to a method of wireless communication implemented by a user equipment (UE). The method may include receiving, from a base station, a configuration message indicating a configured grant-small data transfer (CG-SDT) group including the UE, the CG-SDT group being associated with a downlink beam of the base station and one or more CG-SDT opportunities. The method may further include transmitting, within the one or more CG-SDT opportunities, an uplink beam of the UE corresponding to the downlink beam of the UE, an uplink beam of the UE, the downlink beam of the UE being associated with a downlink beam of the base station used to transmit at least one of a configuration message, a paging message, or a reference signal.

[0007] Some aspects described herein relate to a method of wireless communication implemented by a base station. The method may include transmitting a configuration message to the UE indicating a CG-SDT group including the UE, the CG-SDT group being associated with a downlink beam of the base station and one or more CG-SDT opportunities. The method may further include receiving uplink communications from the UE within the one or more CG-SDT opportunities using a spatial filter corresponding to the downlink beam of the base station.

[0008] Certain aspects described herein relate to a method of wireless communication implemented by a UE. The method may include transmitting a scheduling request for one or more CG-SDT opportunities to a base station. The method may further include transmitting measurements on one or more beam candidates for use in the one or more CG-SDT opportunities to the base station.

[0009] Certain aspects described herein relate to a method of wireless communication implemented by a base station. The method may include receiving, from a UE, a scheduling request associated with one or more CG-SDT occasions. The method may further include receiving, from the UE, measurements on one or more beam candidates for use in the one or more CG-SDT occasions.

[0010] Some aspects described herein relate to an apparatus for wireless communication in a UE. The apparatus may include a memory and one or more processors coupled to the memory. The one or more processors may be configured to receive a configuration message from a base station indicating a CG-SDT group including the UE, where the CG-SDT group is associated with a downlink beam of the base station and one or more CG-SDT occasions. The one or more processors may be further configured to transmit uplink communications to the base station within the one or more CG-SDT occasions using an uplink beam of the UE corresponding to the downlink beam of the UE, where the downlink beam of the UE is associated with a downlink beam of the base station used to transmit at least one of a configuration message, a paging message, or a reference signal.

[0011] Some aspects described herein relate to an apparatus for wireless communication in a base station. The apparatus may include a memory and one or more processors coupled to the memory. The one or more processors may be configured to: transmit a configuration message to the UE indicating a CG-SDT group including the UE, the CG-SDT group being associated with a downlink beam of the base station and one or more CG-SDT opportunities; the one or more processors may be further configured to receive uplink communications from the UE within the one or more CG-SDT opportunities using a spatial filter corresponding to the downlink beam of the base station.

[0012] Certain aspects described herein relate to an apparatus for wireless communication in a UE. The apparatus may include a memory and one or more processors coupled to the memory. The one or more processors may be configured to transmit a scheduling request for one or more CG-SDT occasions to a base station. The one or more processors may be further configured to transmit measurements on one or more beam candidates for use in the one or more CG-SDT occasions to the base station.

[0013] Certain aspects described herein relate to an apparatus for wireless communication at a base station. The base station may include a memory and one or more processors coupled to the memory. The one or more processors may be configured to receive, from the UE, a scheduling request associated with one or more CG-SDT occasions. The one or more processors may be further configured to receive, from the UE, measurements on one or more beam candidates for use in the one or more CG-SDT occasions.

[0014] Certain aspects described herein relate to a non-transitory computer-readable medium storing a set of instructions for wireless communication by a UE. The set of instructions, when executed by one or more processors of the UE, can cause the UE to receive from a base station a configuration message indicating a CG-SDT group including the UE, where the CG-SDT group is associated with a downlink beam of the base station and one or more CG-SDT opportunities. The set of instructions, when executed by the one or more processors of the UE, can further cause the UE to transmit uplink communications to the base station within the one or more CG-SDT opportunities using an uplink beam of the UE corresponding to the downlink beam of the UE, where the downlink beam of the UE is associated with a downlink beam of the base station used to transmit at least one of a configuration message, a paging message, or a reference signal.

[0015] Certain aspects described herein relate to a non-transitory computer-readable medium storing a set of instructions for wireless communication by a base station. The set of instructions, when executed by one or more processors of the base station, can cause the base station to transmit a configuration message to the UE indicating a CG-SDT group including the UE, the CG-SDT group being associated with a downlink beam of the base station and one or more CG-SDT opportunities. The set of instructions, when executed by the one or more processors of the base station, can further cause the base station to receive uplink communications from the UE within the one or more CG-SDT opportunities using a spatial filter corresponding to the downlink beam of the base station.

[0016] Certain aspects described herein relate to a non-transitory computer-readable medium storing a set of instructions for wireless communication by a UE. The set of instructions, when executed by one or more processors of the UE, can cause the UE to transmit a scheduling request to a base station for one or more CG-SDT opportunities. The set of instructions, when executed by the one or more processors of the UE, can further cause the UE to transmit measurements on one or more beam candidates to the base station for use in the one or more CG-SDT opportunities.

[0017] Certain aspects described herein relate to a non-transitory computer-readable medium storing a set of instructions for wireless communication by a base station. The set of instructions, when executed by one or more processors of the base station, can cause the base station to receive from the UE a scheduling request associated with one or more CG-SDT occasions. The set of instructions, when executed by the one or more processors of the base station, can further cause the base station to receive from the UE measurements on one or more beam candidates for use in the one or more CG-SDT occasions.

[0018] Certain aspects described herein relate to an apparatus for wireless communication. The apparatus may include means for receiving from a base station a configuration message indicating a CG-SDT group including the apparatus, the CG-SDT group being associated with a downlink beam of the base station and one or more CG-SDT opportunities. The apparatus may further include means for transmitting uplink communications to the base station within the one or more CG-SDT opportunities using an uplink beam of the apparatus corresponding to the downlink beam of the apparatus, the downlink beam of the apparatus being associated with a downlink beam of the base station used to transmit at least one of a configuration message, a paging message, or a reference signal.

[0019] Certain aspects described herein relate to an apparatus for wireless communication. The apparatus may include means for transmitting a configuration message to the UE indicating a CG-SDT group including the UE, the CG-SDT group being associated with a downlink beam of the apparatus and one or more CG-SDT occasions. The apparatus may further include means for receiving uplink communications from the UE within the one or more CG-SDT occasions using a spatial filter corresponding to the downlink beam of the apparatus.

[0020] Certain aspects described herein relate to an apparatus for wireless communication. The apparatus may include means for transmitting a scheduling request for one or more CG-SDT occasions to a base station. The apparatus may further include means for transmitting measurements on one or more beam candidates for use in the one or more CG-SDT occasions to the base station.

[0021] Certain aspects described herein relate to an apparatus for wireless communication. The apparatus may include means for receiving, from a UE, a scheduling request associated with one or more CG-SDT occasions. The apparatus may further include means for receiving, from the UE, measurements on one or more beam candidates for use in the one or more CG-SDT occasions.

[0022] Aspects generally include methods, apparatus, systems, computer program products, non-transitory computer-readable media, user equipment, base stations, wireless communication devices, and / or processing systems as fully described herein with reference to and as illustrated in the drawings and this specification.

[0023] The foregoing has outlined rather broadly the features and technical advantages of examples according to the present disclosure so that the following detailed description may be better understood. Additional features and advantages are described below. The concepts and examples disclosed may be readily used as a basis for modifying or designing other structures for carrying out the same purposes of the present disclosure. Such equivalent structures do not depart from the scope of the appended claims. The nature of the concepts disclosed herein, both their organization and method of operation, together with associated advantages, will be better understood from the following description when considered in conjunction with the accompanying figures. Each of the figures is provided for the purpose of illustration and description, and not as a definition of the limits of the claims.

[0024] Although aspects are described in this disclosure by illustrating some examples, those skilled in the art will understand that such aspects can be implemented in many different configurations and scenarios. The techniques described herein may be implemented using different platform types, devices, systems, shapes, sizes, and / or packaging configurations. For example, some aspects may be implemented via integrated chip embodiments or other non-modular component-based devices (e.g., end-user devices, vehicles, communications devices, computing devices, industrial equipment, retail / purchasing devices, medical devices, and / or artificial intelligence-enabled devices). Aspects may be implemented in chip-level components, modular components, non-modular components, non-chip-level components, device-level components, and / or system-level components. Devices incorporating the described aspects and features may include additional components and features for the implementation and practice of the claimed and described aspects. For example, 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). It is contemplated that the aspects described herein may be practiced in a wide variety of devices, components, systems, distributed configurations, and / or end-user devices of various sizes, shapes, and configurations.

[0025] So that the above-listed features of the present disclosure may be understood in detail, a more detailed description briefly summarized above may be had by reference to embodiments, some of which are shown in the accompanying drawings. However, since the present description may admit of other equally effective embodiments, it should be noted that the accompanying drawings illustrate only some typical embodiments of the present disclosure and therefore should not be considered limiting of its scope. The same reference numbers in different drawings may identify the same or similar elements. [Brief explanation of the drawings]

[0026] [Figure 1] FIG. 1 illustrates an example of a wireless network according to the present disclosure. [Figure 2] FIG. 1 illustrates an example of a base station communicating with user equipment (UE) in a wireless network according to the present disclosure. [Figure 3] FIG. 1 illustrates an example of a beamforming architecture that supports beamforming for millimeter wave (mmW) communications, in accordance with the present disclosure. [Figure 4A] FIG. 1 illustrates an example associated with configuring a beam-based configuration grant-small data transfer (CG-SDT) opportunity in accordance with the present disclosure. [Figure 4B] FIG. 1 illustrates an example associated with configuring a beam-based configuration grant-small data transfer (CG-SDT) opportunity in accordance with the present disclosure. [Figure 5] FIG. 1 illustrates an example associated with a beam-based CG-SDT opportunity according to the present disclosure. [Figure 6] FIG. 1 illustrates an exemplary process associated with configuring and using beam-based CG-SDT opportunities in accordance with the present disclosure. [Figure 7] FIG. 1 illustrates an exemplary process associated with configuring and using beam-based CG-SDT opportunities in accordance with the present disclosure. [Figure 8] FIG. 1 illustrates an exemplary process associated with configuring and using beam-based CG-SDT opportunities in accordance with the present disclosure. [Figure 9] FIG. 1 illustrates an exemplary process associated with configuring and using beam-based CG-SDT opportunities in accordance with the present disclosure. DETAILED DESCRIPTION OF THE INVENTION

[0027] Various aspects of the present disclosure are described more fully below with reference to the accompanying drawings. However, the present disclosure may be embodied in many different forms and should not be construed as limited to any specific structure or function presented throughout this disclosure. Rather, these aspects are intended so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. Those skilled in the art will appreciate that the scope of the present disclosure encompasses any aspect of the present disclosure disclosed herein, whether implemented independently or in combination with any other aspect of the present disclosure. For example, an apparatus may be implemented or a method may be practiced using any number of the aspects described herein. Additionally, the scope of the present disclosure is intended to encompass such apparatuses or methods practiced using other structures, functions, or structures and functions in addition to or other than the various aspects of the present disclosure described herein. It should be understood that any aspect of the present disclosure disclosed herein may be embodied by one or more elements of a claim.

[0028] Several aspects of telecommunications systems will now be presented with reference to various apparatus and techniques. These apparatus and techniques are described in the following detailed description and illustrated in the accompanying drawings by various blocks, modules, components, circuits, steps, processes, algorithms, etc. (collectively referred to as "elements"). These elements may be implemented using hardware, software, or a combination thereof. Whether such elements are implemented as hardware or software depends on the particular application and design constraints imposed on the overall system.

[0029] Although aspects may be described herein using terminology commonly associated with 5G or New Radio (NR) radio access technologies (RATs), aspects of the present disclosure may apply to other RATs, such as 3G RATs, 4G RATs, and / or post-5G (e.g., 6G) RATs.

[0030] FIG. 1 illustrates an example of a wireless network 100 according to the present disclosure. The wireless network 100 may be or include elements of a 5G (e.g., NR) network and / or a 4G (e.g., Long Term Evolution (LTE)) network, among other examples. The wireless network 100 may include one or more base stations 110 (depicted as BS 110a, BS 110b, BS 110c, and BS 110d), a user equipment (UE) 120 or multiple UEs 120 (depicted as UE 120a, UE 120b, UE 120c, UE 120d, and UE 120e), and / or other network entities. The base stations 110 are entities that communicate with the UEs 120. The base stations 110 (sometimes referred to as BSs) may include, for example, NR base stations, LTE base stations, Node Bs, eNBs (e.g., in 4G), gNBs (e.g., in 5G), access points, and / or transmit receiving points (TRPs). Each base station 110 may provide communication coverage for a particular geographic area. In the Third Generation Partnership Project (3GPP®), the term “cell” can refer to the coverage area of ​​a base station 110 and / or a base station subsystem serving that coverage area, depending on the context in which the term is used.

[0031] A base station 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 few kilometers in radius) and may allow unrestricted access by UEs 120 with service subscriptions. A pico cell may cover a relatively small geographic area and may allow unrestricted access by UEs 120 with service subscriptions. A femto cell may cover a relatively small geographic area (e.g., a home) and may allow restricted access by UEs 120 having an association with the femto cell (e.g., a UE in a closed subscriber group (CSG)). A base station 110 for a macro cell may be referred to as a macro base station. A base station 110 for a pico cell may be referred to as a pico base station. A base station 110 for a femto cell may be referred to as a femto base station or a home base station. 1, BS 110a may be a macro base station for a macro cell 102a, BS 110b may be a pico base station for a pico cell 102b, and BS 110c may be a femto base station for a femto cell 102c. A base station may support one or multiple (e.g., three) cells.

[0032] In some examples, the cells may not necessarily be fixed, and the geographic area of ​​the cells may move according to the location of the base station 110 that is mobile (e.g., a mobile base station). In some examples, the base stations 110 may be interconnected to each other and / or to one or more other base stations 110 or network nodes (not shown) in the wireless network 100 through various types of backhaul interfaces, such as direct physical connections or virtual networks, using any suitable transport network.

[0033] The wireless network 100 may include one or more relay stations. A relay station is an entity that can receive data transmissions from an upstream station (e.g., a base station 110 or a UE 120) and send data transmissions to a downstream station (e.g., a UE 120 or a base station 110). A relay station may be a UE 120 that can relay transmissions for other UEs 120. In the example shown in FIG. 1, a BS 110d (e.g., a relay base station) may communicate with a BS 110a (e.g., a macro base station) and a UE 120d to facilitate communication between the BS 110a and the UE 120d. A base station 110 that relays communications may be referred to as a relay station, a relay base station, a relay, etc.

[0034] Wireless network 100 may be a heterogeneous network including different types of base stations 110, such as macro base stations, pico base stations, femto base stations, relay base stations, etc. These different types of BSs 110 may have different transmit power levels, different coverage areas, and / or different susceptibility to interference within wireless network 100. For example, macro base stations may have high transmit power levels (e.g., 5-40 watts), while pico base stations, femto base stations, and relay base stations may have lower transmit power levels (e.g., 0.1-2 watts).

[0035] A network controller 130 may couple to or communicate with a set of base stations 110 and may provide coordination and control for these base stations 110. The network controller 130 may communicate with the base stations 110 via backhaul communication links. The base stations 110 may communicate with each other directly or indirectly via wireless or wireline backhaul communication links.

[0036] The UEs 120 may be dispersed throughout the wireless network 100, and each UE 120 may be fixed or mobile. The UEs 120 may include, for example, an access terminal, a terminal, a mobile station, and / or a subscriber unit. A UE may be a cellular phone (e.g., a smartphone), a personal digital assistant (PDA), a wireless modem, a wireless communication device, a handheld device, a laptop computer, a cordless phone, a wireless local loop (WLL) station, a tablet, a camera, a gaming device, a netbook, a smartbook, an ultrabook, a medical device, a biometric device, a wearable device (e.g., a smart watch, smart clothing, smart glasses, smart wristband, smart jewelry (e.g., a smart ring, a smart bracelet)), an entertainment device (e.g., a music device, a video device, and / or satellite radio), a vehicle component or sensor, a smart meter / sensor, industrial manufacturing equipment, a global positioning system device, and / or any other suitable device configured to communicate over a wireless medium.

[0037] Some UEs 120 may be considered machine-type communication (MTC) UEs or evolved or enhanced machine-type communication (eMTC) UEs. MTC UEs and / or eMTC UEs may include, for example, a robot, a drone, a remote device, a sensor, a meter, a monitor, and / or a location tag that may communicate with a base station, another device (e.g., a remote device), or some other entity. Some UEs 120 may be considered Internet of Things (IoT) devices and / or may be implemented as NB-IoT (narrowband IoT) devices. Some UEs 120 may be considered customer premises equipment. The UE 120 may be included within a housing that houses components of the UE 120, such as a processor component and / or a memory component. In some examples, the processor component and the memory component may be coupled to each other. For example, the processor component (e.g., one or more processors) and the memory component (e.g., a memory) may be operatively coupled, communicatively coupled, electronically coupled, and / or electrically coupled.

[0038] In general, any number of wireless networks 100 may be deployed in a given geographic area. Each wireless network 100 may support a particular RAT and may operate on one or more frequencies. A RAT may be referred to as a radio technology, air interface, etc. A frequency may be referred to as a carrier, frequency channel, etc. Each frequency may support a single RAT in a given geographic area to avoid interference between wireless networks of different RATs. In some cases, an NR RAT network or a 5G RAT network may be deployed.

[0039] In some examples, two or more UEs 120 (e.g., shown as UE 120a and UE 120e) may communicate directly (e.g., without using the base station 110 as an intermediary for communicating with each other) using one or more sidelink channels. For example, the UEs 120 may communicate using peer-to-peer (P2P) communication, device-to-device (D2D) communication, a vehicle-to-everything (V2X) protocol (which may include, e.g., a vehicle-to-vehicle (V2V) protocol, a vehicle-to-infrastructure (V2I) protocol, or a vehicle-to-pedestrian (V2P) protocol), and / or a mesh network. In such examples, the UEs 120 may perform scheduling operations, resource selection operations, and / or other operations described elsewhere herein as being performed by the base station 110.

[0040] Devices of wireless network 100 may communicate using an electromagnetic spectrum, which may be subdivided by frequency or wavelength into various classes, bands, channels, etc. For example, devices of 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 FR1 is often referred to (interchangeably) as the “sub-6 GHz” band in various documents and papers, although a portion of FR1 is above 6 GHz. Similar nomenclature issues may arise with respect to FR2, which is often referred to (interchangeably) as the “millimeter wave” band in documents and papers, even though it is different from the extremely high frequency (EHF) band (30 GHz to 300 GHz) identified as the “millimeter wave” band by the International Telecommunications Union (ITU).

[0041] Frequencies between FR1 and FR2 are often referred to as mid-band frequencies. Recent 5G NR studies have identified the operating band for these mid-band frequencies as frequency range designation FR3 (7.125 GHz to 24.25 GHz). Frequency bands that fall within FR3 may inherit FR1 and / or FR2 characteristics and thus may effectively extend the features of FR1 and / or FR2 to mid-band frequencies. Additionally, higher frequency bands are currently being explored to extend 5G NR operation 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.

[0042] With the above examples in mind, it should be understood that, unless otherwise specified, terms such as "sub-6 GHz," when used herein, may broadly refer to frequencies that may be below 6 GHz, may be within FR1, or may include mid-band frequencies. Furthermore, unless otherwise specified, it should be understood that terms such as "millimeter wave," "mmW," and the like, when used herein, 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. Frequencies included within these operating bands (e.g., FR1, FR2, FR3, FR4, FR4-a, FR4-1, and / or FR5) may be modified, and it is contemplated that the techniques described herein are applicable to those modified frequency ranges.

[0043] As indicated above, Figure 1 is provided as an example. Other examples may differ from the example described with respect to Figure 1.

[0044] 2 illustrates an example base station 110 200 in communication with a UE 120 in a wireless network 100 in accordance with the present disclosure. The base station 110 may be equipped with a set of antennas 234a through 234t, such as T antennas (T≧1). The base station 120 may be equipped with a set of antennas 252a through 252r, such as R antennas (R≧1).

[0045] At the base station 110, a transmit processor 220 may receive data for a UE 120 (or a set of UEs 120) from a data source 212. The transmit processor 220 may select one or more modulation and coding schemes (MCSs) for the UE 120 based at least in part on one or more channel quality indicators (CQIs) received from the UE 120. The UE 120 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 to the UE 120. The transmit processor 220 may process system information and control information (e.g., CQI requests, grants, and / or higher layer signaling) (e.g., for semi-static resource partitioning information (SRPI)) and provide overhead symbols and control symbols. The transmit processor 220 may generate reference symbols for a reference signal (e.g., a cell-specific reference signal (CRS) or a demodulation reference signal (DMRS)) and a synchronization signal (e.g., a primary synchronization signal (PSS) or a secondary synchronization signal (SSS)). The transmit (TX) multiple-input multiple-output (MIMO) processor 230 may perform spatial processing (e.g., precoding) on ​​the data symbols, control symbols, overhead symbols, and / or reference symbols, if applicable, and may provide a set of output symbol streams (e.g., T output symbol streams) to a corresponding set of modems 232 (e.g., T modems), denoted as modems 232a through 232t. For example, each output symbol stream may be provided to a modulator component (denoted as MOD) of modem 232. Each modem 232 may process a respective output symbol stream (e.g., for OFDM) using a respective modulator component to obtain an output sample stream. Each modem 232 may further use a respective modulator component to process (eg, convert to analog, amplify, filter, and / or upconvert) the output sample stream to obtain a downlink signal.Modems 232a through 232t may transmit a set of downlink signals (e.g., T downlink signals) via a corresponding set of antennas 234 (e.g., T antennas), depicted as antennas 234a through 234t.

[0046] At the UE 120, the set of antennas 252 (depicted as antennas 252a through 252r) may receive downlink signals from the base station 110 and / or other base stations 110 and may provide a set of received signals (e.g., R received signals) to a set of modems 254 (e.g., R modems), depicted as modems 254a through 254r. For example, each received signal may be provided to a demodulator component (depicted as DEMOD) of the modems 254. Each modem 254 may condition (e.g., filter, amplify, downconvert, and / or digitize) the received signal using its respective demodulator component to obtain input samples. Each modem 254 may further process the input samples (e.g., for OFDM) using the demodulator component to obtain received symbols. A MIMO detector 256 may obtain the received symbols from the modems 254, perform MIMO detection on the received symbols if applicable, and provide the detected symbols. The receive processor 258 may process (e.g., demodulate and decode) the detected symbols, provide decoded data for the UE 120 to a data sink 260, and provide decoded control 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 examples. In some aspects, one or more components of the UE 120 may be included within a housing 284.

[0047] The network controller 130 may include a communication unit 294, a controller / processor 290, and a memory 292. The network controller 130 may include, for example, one or more devices in a core network. The network controller 130 may communicate with the base stations 110 via the communication unit 294.

[0048] One or more antennas (e.g., antennas 234a-t and / or antennas 252a-r) may include or be contained within one or more antenna panels, one or more antenna groups, one or more sets of antenna elements, and / or one or more antenna arrays, among other examples. The antenna panels, antenna groups, sets of antenna elements, and / or antenna arrays may include (in a single housing or multiple housings) one or more antenna elements, a set of coplanar antenna elements, a set of non-coplanar antenna elements, and / or one or more antenna elements coupled to one or more transmitting and / or receiving components, such as one or more components of FIG.

[0049] 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 precoded by a TX MIMO processor 266, if applicable, further processed by the modem 254 (e.g., for DFT-s-OFDM or CP-OFDM), and transmitted to the base station 110. In some examples, the modem 254 of the UE 120 may include a modulator and demodulator. In some examples, the UE 120 includes a transceiver. The transceiver may include any combination of the antennas 252, the modem 254, the MIMO detector 256, the receive processor 258, the transmit processor 264, and / or the TX MIMO processor 266. The transceiver may be used by a processor (e.g., controller / processor 280) and memory 282 to implement aspects of any of the methods described herein (e.g., with reference to Figures 4A, 4B, and 5-9).

[0050] At the base station 110, uplink signals from the UE 120 and / or other UEs may be received by an antenna 234, processed by a modem 232 (e.g., a demodulator component, denoted as DEMOD, of the modem 232), detected by a MIMO detector 236, if applicable, and further processed by a receive processor 238 to obtain decoded data and control information sent by the UE 120. The receive processor 238 may provide the decoded data to a data sink 239 and the decoded control information to a controller / processor 240. The base station 110 may include a communication unit 244 and may communicate with the network controller 130 via the communication unit 244. The base station 110 may include a scheduler 246 to schedule one or more UEs 120 for downlink and / or uplink communication. In some examples, the modem 232 of the base station 110 may include a modulator and a demodulator. In some examples, the base station 110 includes a transceiver. The transceiver may include any combination of antennas 234, modems 232, MIMO detectors 236, receive processors 238, transmit processors 220, and / or TX MIMO processors 230. The transceiver may be used by a processor (e.g., controller / processor 240) and memory 242 to implement aspects of any of the methods described herein (e.g., with reference to FIGS. 4A, 4B, and 5-9).

[0051] The controller / processor 240 of the base station 110, the controller / processor 280 of the UE 120, and / or any other components of FIG. 2 may implement one or more techniques associated with beam-based configuration grant-small data transfer (CG-SDT) opportunities, as described in more detail elsewhere herein. For example, the controller / processor 240 of the base station 110, the controller / processor 280 of the UE 120, and / or any other components of FIG. 2 may perform or direct the operation of, for example, process 600 of FIG. 6, process 700 of FIG. 7, process 800 of FIG. 8, process 900 of FIG. 9, and / or other processes as described herein. The memory 242 and the memory 282 may store data and program codes for the base station 110 and the UE 120, respectively. In some examples, the memory 242 and / or the 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 by one or more processors of the base station 110 and / or the UE 120 (e.g., immediately or after being compiled, converted, and / or interpreted), may cause the one or more processors, the UE 120, and / or the base station 110 to perform or direct operations of, for example, process 600 of FIG. 6, process 700 of FIG. 7, process 800 of FIG. 8, process 900 of FIG. 9, and / or other processes as described herein. In some examples, executing the instructions may include executing the instructions, converting the instructions, compiling the instructions, and / or interpreting the instructions, among other examples.

[0052] In some aspects, a UE (e.g., UE 120) may include means for receiving from a base station (e.g., base station 110) a configuration message indicating a CG-SDT group including the UE, where the CG-SDT group is associated with a downlink beam of the base station and one or more CG-SDT occasions, and / or means for transmitting uplink communications to the base station using an uplink beam of the UE corresponding to the downlink beam of the UE within one or more CG-SDT occasions, where the downlink beam of the UE is associated with a downlink beam of the base station used to transmit at least one of the configuration message, the paging message, or the reference message. The means for the UE to perform the operations described herein may include, for example, one or more of antennas 252, modem 254, MIMO detector 256, receive processor 258, transmit processor 264, TX MIMO processor 266, controller / processor 280, or memory 282.

[0053] Additionally or alternatively, the UE (e.g., UE 120) may include means for transmitting a scheduling request for one or more CG-SDT opportunities to a base station (e.g., base station 110) and / or means for transmitting measurements on one or more beam candidates for use in one or more CG-SDT opportunities to the base station. The means for the UE to perform the operations described herein may include, for example, one or more of antenna 252, modem 254, MIMO detector 256, receive processor 258, transmit processor 264, TX MIMO processor 266, controller / processor 280, or memory 282.

[0054] In some aspects, a base station (e.g., base station 110) may include means for transmitting a configuration message to a UE (e.g., UE 120) indicating a CG-SDT group including the UE, the CG-SDT group being associated with a downlink beam of the base station and one or more CG-SDT opportunities, and / or means for receiving uplink communications from the UE within the one or more CG-SDT opportunities using a spatial filter corresponding to the downlink beam of the base station. The means for the base station to perform the operations described herein may include, for example, one or more of transmit processor 220, TX MIMO processor 230, modem 232, antenna 234, MIMO detector 236, receive processor 238, controller / processor 240, memory 242, or scheduler 246.

[0055] Additionally or alternatively, the base station (e.g., base station 110) may include means for receiving from a UE (e.g., UE 120) a scheduling request associated with one or more CG-SDT occasions, and / or means for receiving from the UE measurements on one or more beam candidates for use in one or more CG-SDT occasions. The means for the base station to perform the operations described herein may include, for example, one or more of transmit processor 220, TX MIMO processor 230, modem 232, antenna 234, MIMO detector 236, receive processor 238, controller / processor 240, memory 242, or scheduler 246.

[0056] 2 are shown as separate components, the functionality described above with respect to the 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 transmit processor 264, receive processor 258, and / or TX MIMO processor 266 may be performed by or under the control of controller / processor 280.

[0057] As noted above, Figure 2 is provided as an example. Other examples may differ from the example described with respect to Figure 2.

[0058] 3 is a diagram illustrating an example beamforming architecture 300 supporting beamforming for mmW communications in accordance with the present disclosure. In some aspects, architecture 300 may implement aspects of wireless network 100. In some aspects, architecture 300 may be implemented in a transmitting device (e.g., a first wireless communication device, UE, or base station) and / or a receiving device (e.g., a second wireless communication device, UE, or base station) as described herein.

[0059] Broadly, FIG. 3 illustrates example hardware components of a wireless communication device according to some aspects of the present disclosure. The components shown may include components that can be used for antenna element selection and / or for beamforming for transmission of wireless signals. There are numerous architectures for implementing antenna element selection and phase shifting, only one example of which is shown here. The architecture 300 includes a modem (modulator / demodulator) 302, a digital-to-analog converter (DAC) 304, a first mixer 306, a second mixer 308, and a splitter 310. The architecture 300 also includes an antenna array 318 including multiple first amplifiers 312, multiple phase shifters 314, multiple second amplifiers 316, and multiple antenna elements 320. In some examples, the modem 302 may be one or more of the modem 232 or the modem 254 described with respect to FIG. 2.

[0060] Transmission lines or other waveguides, wires, and / or traces connecting various components are shown to illustrate how transmitted signals may travel between components. Reference numerals 322, 324, 326, and 328 indicate areas within architecture 300 where different types of signals travel or are processed. Specifically, reference numeral 322 indicates an area where digital baseband signals travel or are processed, reference numeral 324 indicates an area where analog baseband signals travel or are processed, reference numeral 326 indicates an area where analog intermediate frequency (IF) signals travel or are processed, and reference numeral 328 indicates an area where analog radio frequency (RF) signals travel or are processed. The architecture also includes local oscillator A 330, local oscillator B 332, and controller / processor 334. In some aspects, controller / processor 334 corresponds to controller / processor 240 of the base station described above with reference to FIG. 2 and / or controller / processor 280 of the UE described above with reference to FIG. 2.

[0061] Each of the antenna elements 320 may include one or more sub-elements for radiating or receiving RF signals. For example, a single antenna element 320 may include a cross-polarized first sub-element and a second sub-element that can be used to independently transmit cross-polarized signals. The antenna elements 320 may include patch antennas, dipole antennas, or other types of antennas arranged in a linear, two-dimensional, or other pattern. The spacing between the antenna elements 320 may allow signals having desired wavelengths separately transmitted by the antenna elements 320 to interact or interfere (e.g., to form a desired beam). For example, given an expected range of wavelengths or frequencies, the spacing may provide a quarter wavelength, half wavelength, or other fraction of the wavelength of the spacing between adjacent antenna elements 320 to allow interaction or interference of signals transmitted by separate antenna elements 320 within that expected range.

[0062] The modem 302 may process and generate digital baseband signals and may also control the operation of the DAC 304, the first and second mixers 306 and 308, the splitter 310, the first amplifier 312, the phase shifter 314, and / or the second amplifier 316 to transmit the signals via one or more or all of the antenna elements 320. The modem 302 may process signals and control operation in accordance with a communication standard, such as the wireless standards discussed herein. The DAC 304 may convert the digital baseband signal received (transmitted) from the modem 302 to an analog baseband signal. The first mixer 306 upconverts the analog baseband signal to an analog IF signal within the IF using a local oscillator A 330. For example, the first mixer 306 may mix the signal with an oscillation signal generated by the local oscillator A 330 to “move” the baseband analog signal to the IF. In some cases, processing or filtering (not shown) may occur at the IF. The second mixer 308 upconverts the analog IF signal to an analog RF signal using local oscillator B 332. Like the first mixer, the second mixer 308 may mix the IF analog signal with an oscillator signal generated by local oscillator B 332 to "move" the signal to RF, or the frequency at which the signal is to be transmitted or received. The modem 302 and / or controller / processor 334 may adjust the frequency of local oscillator A 330 and / or local oscillator B 332 so that the desired IF and / or RF frequencies are generated and used to facilitate processing and transmission of signals within the desired bandwidth.

[0063] In the illustrated architecture 300, the signal upconverted by the second mixer 308 is split or replicated into multiple signals by a splitter 310. The splitter 310 in the architecture 300 splits the RF signal into multiple identical or nearly identical RF signals. In other examples, the splitting may be performed on any type of signal, including a baseband digital signal, a baseband analog signal, or an IF analog signal. Each of these signals may correspond to an antenna element 320, and the signal travels through and is processed by the amplifiers 312 and 316, the phase shifter 314, and / or other elements corresponding to the respective antenna element 320 where it is provided to and transmitted by the corresponding antenna element 320 of the antenna array 318. In one example, the splitter 310 may be an active splitter connected to a power source and providing some gain so that the RF signal exiting the splitter 310 is at a power level equal to or greater than the signal entering the splitter 310. In another example, splitter 310 may be a passive splitter that is not connected to a power source, and the RF signal exiting splitter 310 may be at a lower power level than the RF signal entering splitter 310.

[0064] After being split by the splitter 310, the resulting RF signal may enter an amplifier, such as the first amplifier 312, or a phase shifter 314 corresponding to the antenna element 320. The first and second amplifiers 312, 316 are shown with dashed lines because one or both of them may not be necessary in some embodiments. In some embodiments, both the first amplifier 312 and the second amplifier 316 are present. In some embodiments, neither the first amplifier 312 nor the second amplifier 316 is present. In some embodiments, one of the two amplifiers 312, 316 is present but the other is not. As an example, if the splitter 310 is an active splitter, the first amplifier 312 may not be used. As a further example, if the phase shifter 314 is an active phase shifter that can provide gain, the second amplifier 316 may not be used.

[0065] The amplifiers 312 and 316 may provide a desired level of positive or negative gain. Positive gain (positive dB) can be used to increase the amplitude of the signal for radiation by a particular antenna element 320. Negative gain (negative dB) can be used to decrease the amplitude of the signal and / or suppress radiation by a particular antenna element. Each of the amplifiers 312 and 316 may be independently controlled (e.g., by the modem 302 or the controller / processor 334) to provide independent control of the gain of each antenna element 320. For example, the modem 302 and / or the controller / processor 334 may have at least one control line connected to each of the splitter 310, the first amplifier 312, the phase shifter 314, and / or the second amplifier 316 that can be used to configure the gain to provide a desired amount of gain for each component and, therefore, each antenna element 320.

[0066] The phase shifters 314 may provide a configurable phase shift or phase offset to the corresponding RF signal being transmitted. The phase shifters 314 may be passive phase shifters that are not directly connected to a power source. Passive phase shifters may introduce some insertion loss. The second amplifier 316 may boost the signal to compensate for the insertion loss. The phase shifters 314 may also be active phase shifters that are connected to a power source, such that an active phase shifter provides a certain amount of gain or prevents insertion loss. The settings for each of the phase shifters 314 may be independent, meaning that each phase shifter 314 can be independently set to provide a desired amount of phase shift, or the same amount of phase shift, or some other configuration. The modem 302 and / or the controller / processor 334 may have at least one control line connected to each of the phase shifters 314 that can be used to configure the phase shifters 314 to provide a desired amount of phase shift or phase offset between the antenna elements 320.

[0067] In the shown architecture 300, RF signals received by the antenna elements 320 are provided to one or more first amplifiers 356 to boost signal strength. The first amplifiers 356 may be connected to the same antenna array 318 (e.g., for time division duplex (TDD) operation). The first amplifiers 356 may be connected to different antenna arrays 318. The boosted RF signals are input into one or more phase shifters 354 to provide a configurable phase shift or phase offset to the corresponding received RF signals to enable reception via one or more Rx beams. The phase shifters 354 may be active or passive. The settings of the phase shifters 354 may be independent, meaning that each phase shifter 354 may be independently set to provide a desired amount of phase shift, or the same amount of phase shift, or some other configuration. The modem 302 and / or the controller / processor 334 may have at least one control line connected to each of the phase shifters 354 and that may be used to configure the phase shifters 354 to provide a desired amount of phase shift or phase offset between the antenna elements 320 to enable reception via one or more Rx beams.

[0068] The output of the phase shifter 354 may be input to one or more second amplifiers 352 for signal amplification of the phase-shifted received RF signal. The second amplifiers 352 may be individually configured to provide a configured amount of gain. The second amplifiers 352 may be individually configured to provide an amount of gain to ensure that the signals input to the combiner 350 have the same magnitude. Amplifiers 352 and / or 356 are shown in dashed lines because they may not be necessary in some embodiments. In some embodiments, both amplifier 352 and amplifier 356 are present. In other embodiments, neither amplifier 352 nor amplifier 356 is present. In other embodiments, one of amplifiers 352 and 356 is present but the other is not.

[0069] In the illustrated architecture 300, the signals output by the phase shifters 354 (via amplifiers 352, if present) are combined in a combiner 350. The combiner 350 in the architecture 300 combines the RF signals into a signal. The combiner 350 may be a passive combiner (e.g., not connected to a power source), which may provide some insertion loss. The combiner 350 may be an active combiner (e.g., connected to a power source), which may provide some signal gain. When the combiner 350 is an active combiner, the combiner 350 may provide different (e.g., configurable) amounts of gain to each input signal so that the input signals have the same magnitude when combined. When the combiner 350 is an active combiner, the combiner 350 may not require a second amplifier 352 because the active combiner may provide signal amplification.

[0070] The output of combiner 350 may be input into mixers 348 and 346. Mixers 348 and 346 typically downconvert the received RF signal using inputs from local oscillators 372 and 370, respectively, to create intermediate or baseband signals that carry the coded and modulated information. The outputs of mixers 348 and 346 are input into analog-to-digital converter (ADC) 344 for conversion to analog signals. The analog signals output from ADC 344 are input to modem 302 for baseband processing, such as decoding, deinterleaving, or similar operations.

[0071] Architecture 300 is provided merely as an example to illustrate an architecture for transmitting and / or receiving signals. In some cases, architecture 300 and / or portions of architecture 300 may be repeated multiple times within the architecture to accommodate or provide any number of RF chains, antenna elements, and / or antenna panels. Furthermore, numerous alternative architectures are possible and contemplated. For example, while only a single antenna array 318 is shown, two, three, or more antenna arrays may be included, each with their own corresponding one or more of amplifiers, phase shifters, splitters, mixers, DACs, ADCs, and / or modems. For example, a single UE may include two, four, or more antenna arrays for transmitting or receiving signals at different physical locations on the UE or in different directions.

[0072] Furthermore, mixers, splitters, amplifiers, phase shifters, and other components may be located in different signal type areas (e.g., represented by different ones of reference numerals 322, 324, 326, 328) in different implemented architectures. For example, in different examples, splitting of a signal to be transmitted into multiple signals may occur at analog RF, analog IF, analog baseband, or digital baseband frequencies. Similarly, amplification and / or phase shifting may also occur at different frequencies. For example, in some aspects, one or more of the splitter 310, amplifiers 312, 316, or phase shifter 314 may be located between the DAC 304 and the first mixer 306, or between the first mixer 306 and the second mixer 308. In one example, the functions of one or more of the components may be combined into one component. For example, the phase shifter 314 may perform amplification and include or replace the first and / or second amplifiers 312 and 316. As another example, phase shifting may be implemented by the second mixer 308 to eliminate the need for a separate phase shifter 314. This technique is sometimes referred to as local oscillator (LO) phase shifting. In some aspects of this configuration, there may be multiple IF-to-RF mixers (e.g., one for each antenna element chain) within the second mixer 308, and local oscillator B 332 may provide a different local oscillator signal (with a different phase offset) to each IF-to-RF mixer.

[0073] The modem 302 and / or the controller / processor 334 may control one or more of the other components 304-372 to select one or more antenna elements 320 and / or form a beam for transmission of one or more signals. For example, the antenna elements 320 may be individually selected or deselected for transmission of a signal by controlling the amplitude of one or more corresponding amplifiers, such as the first amplifier 312 and / or the second amplifier 316. Beamforming involves generating a beam using multiple signals on different antenna elements, where one or more or all of the multiple signals are phase-shifted relative to each other. The formed beam may carry a physical layer or higher-layer reference signal or information. As each signal of the multiple signals radiates from its respective antenna element 320, the radiated signals interact with each other, interfere (constructively and destructively), and amplify to form the resulting beam. The shape (such as the amplitude, width, and / or presence of side lobes) and direction (such as the angle of the beam with respect to the surface of the antenna array 318) can be dynamically controlled by modifying the phase shift or phase offset imparted by the phase shifter 314 and the amplitudes imparted by the amplifiers 312 and 316 of the multiple signals with respect to one another. The controller / processor 334 may be partially or completely located within one or more other components of the architecture 300. For example, the controller / processor 334 may, in some aspects, be located within the modem 302.

[0074] As noted above, Figure 3 is provided as an example. Other examples may differ from the example described with respect to Figure 3.

[0075] Some UEs may operate using fewer antennas (e.g., fewer Rx antennas) and / or reduced bandwidth (e.g., operating in the 5-20 MHz range instead of a 100 MHz bandwidth) to conserve battery power. Such UEs may include smart devices (e.g., smart watches and / or fitness trackers), industrial sensors, and / or video surveillance devices, among other examples, and may be referred to as reduced capacity UEs (“RedCap UEs”) and / or “NR-light UEs.”

[0076] To conserve battery power of a RedCap UE, a base station may provide CG-SDT opportunities during which the RedCap UE can communicate with the base station even when the RedCap UE is in idle mode or an inactive state. As used herein, CG-SDT opportunities are sometimes referred to as pre-configured uplink resource (PUR) opportunities. For example, 3GPP® specifications for 5G may use the term CG-SDT, while 3GPP® specifications for LTE use the term PUR.

[0077] Existing 3GPP® specifications and / or other standards for PUR configuration are limited. For example, the 3GPP® specifications do not allow a PUR opportunity to be shared by more than two UEs. Therefore, a base station may use a significant amount of spectrum when configuring multiple UEs with PUR opportunities.

[0078] The techniques and apparatus described herein enable a base station (e.g., base station 110) to configure a group of UEs (e.g., including UE 120) for one or more CG-SDT opportunities corresponding to a downlink beam (e.g., based at least in part on a downlink reference signal such as a channel state information reference signal (CSI-RS), a synchronization signal block (SSB), and / or a tracking reference signal (TRS), among other examples). Thus, the base station 110 and the group of UEs reduce network overhead and resource usage by improving the spectral efficiency of CG-SDT transmissions. As a result, network congestion is reduced, which saves power at the base station 110 and at the group of UEs by reducing reception outages, decoding outages, and retransmissions.

[0079] Additionally or alternatively, the techniques and apparatus described herein enable a group of UEs to request that the base station 110 configure a CG-SDT opportunity when reporting beam measurements to the base station 110. Thus, the base station 110 improves communication reliability and / or quality by selecting an optimal beam to use for the CG-SDT opportunity. Furthermore, in some aspects, a group of UEs can multiplex a scheduling request for a CG-SDT opportunity with beam measurements to reduce the signaling overhead used to configure the CG-SDT opportunity, which saves power and processing resources at the base station 110 or at the group of UEs. Additionally, network congestion is reduced as a result, which saves power at the base station 110 and at the group of UEs by reducing reception outages, decoding outages, and retransmissions.

[0080] 4A is a diagram illustrating an example 400 associated with configuring a beam-based CG-SDT opportunity in accordance with the present disclosure. As shown in FIG. 4A, the example 400 includes communication between a base station 110 and a UE 120. In some aspects, the base station 110 and the UE 120 may be included in a wireless network, such as the wireless network 100. In some aspects, the base station 110 and the UE 120 may communicate over a 5G network and / or other NR networks. Accordingly, the base station 110 and the UE 120 may use beamforming as described with respect to FIG. 3.

[0081] As shown with reference to reference numeral 405, base station 110 may transmit, and UE 120 may receive, a configuration message indicating a CG-SDT group that includes UE 120. For example, base station 110 may address the configuration message to a Group Radio Network Temporary Identifier (G-RNTI) or to multiple RNTIs associated with multiple UEs in the group. In some aspects, the CG-SDT group may be associated with a downlink beam and one or more CG-SDT opportunities of base station 110. For example, the one or more CG-SDT opportunities may be associated with a downlink beam, as described with reference to FIG. 5.

[0082] In example 400, base station 110 transmits a configuration message (e.g., an RRCRelease message defined in the 3GPP® specifications and / or another standard) that is multiplexed with, or at least adjacent in time to, the release of a radio resource control (RRC) connection with UE 120. Thus, in some aspects, UE 120 can enter an inactive state or idle mode.

[0083] In some aspects, the configuration message may be unicast to UE 120. For example, the configuration message may include only the RNTI of UE 120. In such aspects, the configuration message may include additional information regarding timing advance (TA) validation for UE 120. For example, the configuration message may indicate reference signals that UE 120 may measure to determine the TA. Alternatively, the configuration message may be multicast to a group of UEs including UE 120. For example, the configuration message may include a G-RNTI and / or multiple RNTIs (e.g., as described above). In such aspects, the configuration message may include additional information regarding TA validation for multiple UEs in the group. For example, the configuration message may indicate one or more reference signals that each UE of the multiple UEs may measure to determine a corresponding TA for that UE.

[0084] In some aspects, the downlink beam may be associated with a downlink reference signal broadcast by the base station 110. For example, the downlink reference signal may include SSB, TRS, CSI-RS, and / or another reference signal. Thus, the downlink reference signal may indicate a spatial filter associated with (and used by the UE 120 to receive) the downlink beam.

[0085] In some aspects, the UE 120 may have measured one or more downlink beam candidates transmitted by the base station 110. Accordingly, the UE 120 may have transmitted, and the base station 110 may have received, measurements regarding the one or more beam candidates and a scheduling request (SR) for one or more CG-SDT occasions. In some aspects, the measurements may be included in a report associated with the one or more beam candidates. For example, the UE 120 may transmit, and the base station 110 may receive, a channel state information (CSI) report based at least in part on the measurements.

[0086] In some aspects, one or more measurement thresholds may be transmitted by the base station 110 and received by the UE 120. For example, the base station 110 may specify one or more thresholds (e.g., S CG-SDT The base station 110 may indicate the downlink reference signal (represented by ) to the UE 120 (e.g., using RRC signaling, system information (SI) such as a system information block (SIB) message, and / or another signal). Accordingly, the measurement values ​​transmitted to the base station 110 may satisfy one or more measurement thresholds configured for the corresponding downlink reference signal and beam index. In some aspects, the one or more measurement thresholds may be based at least in part on a bandwidth associated with the base station 110, a cell size associated with the base station 110, a capability associated with the UE 120, or a capability associated with the base station 110. For example, the base station 110 may reduce one or more thresholds when serving the UE with a higher transmit power capability, when the base station 110 has additional antennas for reception, when the cell size is smaller, and / or when the bandwidth is smaller. Similarly, the base station 110 may increase one or more thresholds when serving the UE with a lower transmit power capability, when the base station 110 has fewer antennas for reception, when the cell size is larger, and / or when the bandwidth is larger.

[0087] Additionally or alternatively, the base station 110 may transmit, and the UE 120 may receive, an upper limit on the number of beams reported. For example, the base station 110 may transmit, and the UE 120 may receive, an upper limit (e.g., K maxThe base station 110 may indicate the upper limit (represented by ) to the UE 120 (e.g., using an SI such as RRC signaling, an SIB message, and / or another signal). Thus, it is not possible for one or more beam candidates reported by the UE 120 to exceed the upper limit. For example, the UE 120 may eliminate any beam candidates with weaker measurements in order to satisfy the upper limit. In aspects in which the base station 110 further transmits one or more measurement thresholds (e.g., as described above), the UE 120 may eliminate any beam candidates that meet the one or more measurement thresholds by a smaller margin in order to satisfy the upper limit. In some aspects, the upper limit may be based at least in part on a capability associated with the UE 120. For example, the base station 110 may increase the upper limit when serving a UE with a higher transmit power capability. Similarly, the base station 110 may reduce the upper limit when serving a UE with a lower transmit power capability.

[0088] In some aspects, the SR may indicate a maximum transport block size (TBS), a maximum MCS, a range of periodicity for one or more CG-SDT opportunities, and / or measurements corresponding to one or more beam candidates. For example, as described above, the UE 120 may multiplex measurements with the SR. Additionally or alternatively, the UE 120 may determine the maximum TBS and / or maximum MCS based at least in part on the capabilities and / or measurements of the UE 120. For example, when the UE 120 has lower transmit power capabilities and / or when the measurements are smaller, the UE 120 may request a smaller maximum TBS and / or a smaller maximum MCS. Additionally or alternatively, the UE 120 may determine a preferred range of periodicity based at least in part on the data requirements of the UE 120. For example, when the UE 120 expects to transmit more data to the base station 110 and / or when the UE 120 expects to transmit data more frequently to the base station 110, the UE 120 may request more frequent periodicity.

[0089] In some aspects, as described above, the UE 120 may multiplex the RS with the measurements. Alternatively, the UE 120 may transmit the measurements separately from the SR. For example, the UE 120 may transmit, and the base station 110 may receive, a first message comprising the measurements (and / or a report based at least in part on the measurements). Additionally, the UE 120 may transmit, and the base station 110 may receive, a second message comprising the SR.

[0090] In some aspects, the UE 120 may transmit an SR based at least in part on receiving a query from the base station 110. For example, the UE 120 may transmit an SR in response to a query from the base station 110, where the query is based at least in part on capability signaling sent from the UE 120 to the base station 110. Additionally or alternatively, the UE 120 may transmit an SR along with a capability message. For example, the UE 120 may multiplex the SR with the capability message sent from the UE 120 to the base station 110.

[0091] As shown with reference to reference numeral 410, UE 120 may transmit uplink communications using an uplink beam corresponding to a downlink beam within one or more CG-SDT opportunities. For example, UE 120 may transmit a physical uplink shared channel (PUSCH) message and / or other uplink data to base station 110. Accordingly, base station 110 may receive uplink communications within one or more CG-SDT opportunities using a spatial filter corresponding to the downlink beam. For example, base station 110 may apply a spatial filter for reception determined at least in part based on the downlink beam (which may correspond to a downlink reference signal, e.g., CSI-RS, TRS, SSB, and / or another reference signal, as described above).

[0092] In some aspects, the UE 120 may determine one or more CG-SDT occasions based at least in part on a lookup table or a closed-form formula. For example, the configuration message may include an index and / or one or more other inputs that the UE 120 can apply to the lookup table or closed-form formula to determine the one or more CG-SDT occasions. Additionally or alternatively, the UE 120 may determine the one or more CG-SDT occasions based at least in part on one or more parameters. For example, the base station 110 may provide and / or the UE 120 may determine the one or more parameters. In some aspects, the one or more parameters may include beam measurements of a downlink reference signal, a periodicity associated with one or more CG-SDT occasions, a time offset associated with one or more CG-SDT occasions, or a duration of one or more CG-SDT occasions. For example, the UE 120 can determine the beam measurements and periodicity and receive the duration and time offset from the base station 110, and the UE 120 can input these parameters into a lookup table or closed form to determine one or more CG-SDT occasions. In some aspects, the table or format may be indicated by at least one of system information or RRC signaling.

[0093] In some aspects, the UE 120 may validate an uplink TA on an uplink carrier before transmitting an uplink communication. For example, the UE 120 may assess at least one of the dispersion of one or more downlink beam measurements or the status of a TA timer maintained by the UE 120. Thus, the UE 120 may measure a downlink reference signal and / or validate the TA timer before transmitting an uplink communication (e.g., using a waveform indicated by at least one of system information, RRC signaling, or a configuration message).

[0094] As indicated with reference to reference numeral 415, base station 110 may release the RRC connection with UE 120 (e.g., using an RRCRelease message as defined in the 3GPP specifications and / or another standard). Thus, in some aspects, UE 120 can re-enter an inactive state and / or idle mode after transmitting the uplink communication.

[0095] Additionally or alternatively, as shown with reference to reference numeral 420, the base station 110 may transmit, and the UE 120 may receive, a response to the uplink communication on a downlink channel associated with one or more CG-SDT occasions. For example, the base station 110 may transmit, and the UE 120 may receive, a physical downlink control channel (PDCCH) response. In some aspects, the base station 110 may transmit, and the UE 120 may receive, downlink data on a downlink channel associated with one or more CG-SDT occasions. For example, the base station 110 may transmit, and the UE 120 may receive, data on a physical downlink shared channel (PDSCH).

[0096] 4A, the base station 110 may configure a group of UEs (e.g., including the UE 120) for one or more CG-SDT opportunities corresponding to a downlink beam. Thus, the base station 110 and the group of UEs reduce network overhead and resource usage by improving the spectral efficiency of the CG-SDT transmissions.

[0097] Additionally, as described above with respect to reference numeral 405, when UE 120 reports beam measurements to base station 110, it may request that base station 110 configure one or more CG-SDT occasions. Thus, base station 110 improves communication reliability and / or quality by selecting an optimal beam to use for the CG-SDT occasion.

[0098] Further, in some aspects, as described above with reference to reference numeral 405, the UE 120 may multiplex a scheduling request for a CG-SDT opportunity with beam measurements to reduce the signaling overhead used to configure one or more CG-SDT opportunities so that the base station 110 and the UE 120 reduce network overhead and resource consumption.

[0099] As noted above, Figure 4A is provided as an example, and other examples may differ from those described with respect to Figure 4A.

[0100] FIG. 4B illustrates an example 430 associated with configuring a beam-based CG-SDT opportunity in accordance with the present disclosure. As shown in FIG. 4B, example 430 includes communication between base station 110 and UE 120. In some aspects, base station 110 and UE 120 may be included within a wireless network, such as wireless network 100. In some aspects, base station 110 and UE 120 may communicate over a 5G network and / or other NR networks. Accordingly, base station 110 and UE 120 may use beamforming as described with respect to FIG. 3. Example 430 is similar to example 400, but includes transmitting an SR for a CG-SDT opportunity while UE 120 is in an inactive state or idle mode rather than a connected state as described with respect to FIG. 4A.

[0101] As shown with reference to reference numeral 435, the UE 120 may transmit, and the base station 110 may receive, a random access preamble. In some aspects, the UE 120 may have measured one or more downlink beam candidates transmitted by the base station 110. Accordingly, the UE 120 may transmit, and the base station 110 may receive, measurements for one or more beam candidates and SRs for one or more CG-SDT occasions. In some aspects, the UE 120 may multiplex the measurements and / or SRs with the random access preamble. Alternatively, the UE 120 may transmit the measurements and / or SRs adjacent in time to the random access preamble. For example, the UE 120 may transmit a first message with the random access preamble and a second message with the measurements and SRs. In another example, the UE 120 may transmit a first message with the random access preamble, a second message with the measurements, and a third message with the SRs. In yet another example, UE 120 may transmit a first message with a random access preamble multiplexed with one of the measurements and the SR, and a second message with the other of the measurements and the SR.

[0102] In some aspects, the measurements may be included in a report associated with one or more beam candidates. For example, the UE 120 may transmit, and the base station 110 may receive, a CSI report based at least in part on the measurements.

[0103] In some aspects, the base station 110 may have transmitted, and the UE 120 may have received, one or more measurement thresholds, as described with respect to FIG. 4A. Thus, measurements transmitted to the base station 110 may satisfy one or more measurement thresholds configured for the corresponding downlink reference signal and beam index. Additionally or alternatively, the base station 110 may transmit, and the UE 120 may receive, an upper limit on the number of beams reported, as described with respect to FIG. 4A. Thus, one or more beam candidates reported by the UE 120 cannot exceed the upper limit.

[0104] In some aspects, as described with respect to FIG. 4A, the SR may indicate a maximum TBS, a maximum MCS, a range of periodicity for one or more CG-SDT opportunities, and / or measurements corresponding to one or more beam candidates.

[0105] In some aspects, the UE 120 may transmit an SR based at least in part on receiving a query from the base station 110. For example, the UE 120 may transmit an SR in response to a query from the base station 110, where the query is based at least in part on capability signaling sent from the UE 120 to the base station 110. Additionally or alternatively, the UE 120 may transmit an SR along with a capability message. For example, the UE 120 may multiplex the SR with the capability message sent from the UE 120 to the base station 110.

[0106] As shown with reference to reference numeral 440, base station 110 may transmit, and UE 120 may receive, a configuration message indicating a CG-SDT group that includes UE 120. For example, base station 110 may transmit the configuration message as described with reference to FIG. 4A. In some aspects, one or more CG-SDT opportunities may be associated with a downlink beam, as described with reference to FIG. 5.

[0107] In some examples, the base station 110 transmits the multiplexed configuration message in, or at least adjacent in time to, the random access response to the UE 120 (e.g., as defined in the 3GPP specifications and / or another standard).

[0108] In some aspects, the configuration message may be unicast to UE 120. For example, the configuration message may include only the RNTI of UE 120. In such aspects, the configuration message may include additional information regarding the TA for UE 120. For example, the configuration message may include reference signals that UE 120 may measure to determine the TA. Alternatively, the configuration message may be multicast to a group of UEs including UE 120. For example, the configuration message may indicate a G-RNTI and / or multiple RNTIs. In such aspects, the configuration message may include additional information regarding the TA for multiple UEs in the group. For example, the configuration message may indicate one or more reference signals that each of the multiple UEs may measure to determine a corresponding TA for that UE.

[0109] In some aspects, the downlink beam may be associated with a downlink reference signal broadcast by the base station 110. For example, the downlink reference signal may include SSB, TRS, CSI-RS, and / or another reference signal. Thus, the downlink reference signal may indicate a spatial filter associated with (and used by the UE 120 to receive) the downlink beam.

[0110] As shown with reference to reference numeral 445, UE 120 may transmit uplink communications using an uplink beam corresponding to a downlink beam within one or more CG-SDT opportunities. For example, UE 120 may transmit a PUSCH message or other uplink data to base station 110. Accordingly, base station 110 may receive uplink communications within one or more CG-SDT opportunities using a spatial filter corresponding to the downlink beam. For example, base station 110 may apply a spatial filter for reception determined at least in part based on the downlink beam (which may correspond to a downlink reference signal, e.g., CSI-RS, TRS, SSB, and / or another reference signal, as described above).

[0111] In some aspects, the UE 120 may determine one or more CG-SDT occasions based at least in part on a lookup table or a closed form, as described with respect to FIG. 4A. In some aspects, the table or form may be indicated by at least one of system information or RRC signaling. Additionally or alternatively, in some aspects, the UE 120 may check the uplink TA on the uplink carrier before transmitting an uplink communication (e.g., using a waveform indicated by at least one of system information, RRC signaling, or a configuration message), as described with respect to FIG.

[0112] As shown with reference to reference numeral 450, base station 110 may release the RRC connection with UE 120 (e.g., using an RRCRelease message as defined in the 3GPP specifications and / or another standard). Thus, in some aspects, UE 120 may enter an inactive state or idle mode after transmitting an uplink communication.

[0113] Additionally or alternatively, as shown with reference to reference numeral 455, the base station 110 may transmit, and the UE 120 may receive, a response to the uplink communication on a downlink channel associated with one or more CG-SDT occasions. For example, the base station 110 may transmit, and the UE 120 may receive, a PDCCH response. In some aspects, the base station 110 may transmit, and the UE 120 may receive, downlink data on a downlink channel associated with one or more CG-SDT occasions. For example, the base station 110 may transmit, and the UE 120 may receive, data on a PDSCH.

[0114] In some aspects, UE 120 may transmit additional uplink data within one or more CG-SDT opportunities, as described with reference to reference numeral 460. As described with reference to FIG. 5, one or more CG-SDT opportunities may be associated with one or more association periods within an association pattern period. Thus, UE 120 may transmit additional uplink data within one or more CG-SDT opportunities prior to expiration of one or more association periods.

[0115] 4B, the base station 110 may configure a group of UEs (e.g., including the UE 120) for one or more CG-SDT opportunities corresponding to the downlink beam. Thus, the base station 110 and the group of UEs reduce network overhead and resource usage by improving the spectral efficiency of the CG-SDT transmissions.

[0116] Additionally, as described above with respect to reference numeral 435, when UE 120 reports beam measurements to base station 110, it may request that base station 110 configure one or more CG-SDT occasions. Thus, base station 110 improves communication reliability and / or quality by selecting an optimal beam to use for the CG-SDT occasion.

[0117] Further, in some aspects, as described above with reference to reference numeral 435, the UE 120 may multiplex a scheduling request for a CG-SDT opportunity with beam measurements to reduce the signaling overhead used to configure one or more CG-SDT opportunities so that the base station 110 and the UE 120 reduce network overhead and resource consumption.

[0118] As noted above, Figure 4B is provided as an example, and other examples may differ from those described with respect to Figure 4B.

[0119] FIG. 5 is a diagram illustrating an example 500 associated with a beam-based CG-SDT opportunity in accordance with the present disclosure. As shown in FIG. 5, example 500 includes multiple downlink beams from a gNB (e.g., base station 110). In some aspects, the downlink beams may be associated with one or more downlink reference signals (e.g., TRS, CSI-RS, SSB, and / or other reference signals) used in communications between the gNB and a UE (e.g., UE 120). Accordingly, the gNB may sweep the downlink beams (depicted as DL beam 505 and DL beam 510 in example 500) (e.g., when transmitting the downlink reference signals). Similarly, as shown in FIG. 5, the gNB may sweep a spatial receive filter corresponding to the downlink beams as they are received from the UE. In some aspects, the gNB and UE 120 may be included within a wireless network, such as wireless network 100.

[0120] 5, the base station 110 may configure different CG-SDTs for different groups of UEs, and each CG-SDT group may be associated with a corresponding downlink beam and one or more corresponding CG-SDT opportunities of the base station 110. For example, for each CG-SDT group, the base station 110 may transmit, and the UEs in the group may receive, a configuration message as described with respect to FIG. 4A and / or FIG. 4B.

[0121] As further shown in FIG. 5, each downlink beam may be associated with one or more CG-SDT opportunities. In example 500, DL beam 505 is associated with CG-SDT group 515a ("Group G"), which includes one or more UEs. x ") to N x Similarly, DL beam 510 is associated with CG-SDT group 515b ("Group G"), which includes one or more UEs. y ") to N yA CG-SDT group is associated with a CG-SDT opportunity. The CG-SDT opportunities for a CG-SDT group may have the same and / or different resource sizes from each other. Similarly, the CG-SDT opportunities for a CG-SDT group may use the same MCS and / or different MCSs.

[0122] In some aspects, each downlink beam (e.g., DL beam 505a and / or DL ​​beam 505b) is associated with one or more CG-SDT opportunities (e.g., N CG-SDT opportunities within CG-SDT group 515a, respectively) according to one or more association periods within an association pattern period. x N CG-SDT opportunities and / or CG-SDT Group 515b y CG-SDT opportunities). As used herein, an "association period" may refer to a minimum value within a set determined by a configuration period (e.g., as defined in the 3GPP® specification and / or another standard) such that a downlink reference signal (e.g., TRS, CSI-RS, SSB, and / or another reference signal) is mapped to one or more CG-SDT opportunities at least once within the association period. Furthermore, as used herein, an "association pattern period" may refer to a pattern of one of the one or more association periods, and may be determined such that the pattern between one or more CG-SDT opportunities and the transmission of the downlink reference signal repeats within a threshold (e.g., 160 ms, 80 ms, etc.). In some aspects, each of the one or more association periods may include one or more configuration periods for one or more CG-SDT opportunities. As used herein, a "configuration period" may refer to a period during which a gNB and corresponding UE configure one or more CG-SDT opportunities. In some aspects, each of the one or more configuration periods may be an integer multiple of a burst duration associated with a downlink reference signal.

[0123] Thus, the UE may transmit uplink communications using an uplink beam corresponding to the downlink beam within one or more CG-SDT opportunities. Accordingly, the base station 110 may receive uplink communications using a spatial filter corresponding to the downlink beam within one or more CG-SDT opportunities. For example, the UE 120 may transmit, and the base station 110 may receive, uplink communications as described with respect to Figures 4A and 4B.

[0124] 5, the gNB may configure a group of UEs (e.g., including UE 120) for one or more CG-SDT opportunities (e.g., opportunities in CG-SDT group 515a and / or CG-SDT group 515b) corresponding to a downlink beam (e.g., DL beam 505 and / or DL ​​beam 510, respectively). Thus, the gNB and the group of UEs reduce network overhead and resources by improving the spectral efficiency of CG-SDT transmissions.

[0125] As noted above, Figure 5 is provided as an example. Other examples may differ from those described with respect to Figure 5.

[0126] 6 illustrates an example process 600, performed by, for example, a UE, in accordance with the present disclosure. The example process 600 is an example of a UE (e.g., UE 120) performing operations associated with using beam-based CG-SDT opportunities.

[0127] 6, in some aspects, process 600 may include receiving (block 610) a configuration message from a base station (e.g., base station 110) indicating a CG-SDT group that includes the UE. For example, the UE may receive (e.g., using antennas 252, modem 254, MIMO detector 256, receive processor 258, controller / processor 280, and / or memory 282) the configuration message from the base station indicating the CG-SDT group that includes the UE as described herein. In some aspects, the CG-SDT group is associated with a downlink beam of the base station and one or more CG-SDT opportunities.

[0128] 6, in some aspects, process 600 may include transmitting uplink communications to a base station using an uplink beam of the UE that corresponds to a downlink beam of the UE within one or more CG-SDT opportunities (block 620). For example, the UE (e.g., using antennas 252, transmit processor 264, TX MIMO processor 266, modem 254, controller / processor 280, and / or memory 282) may transmit uplink communications to a base station using an uplink beam of the UE that corresponds to a downlink beam of the UE within one or more CG-SDT opportunities, as described herein. In some aspects, the downlink beam of the UE is associated with a downlink beam of the base station used to transmit at least one of a configuration message, a paging message, or a reference signal.

[0129] Process 600 may include additional aspects, such as any single aspect or any combination of aspects described below and / or with respect to one or more other processes described elsewhere herein.

[0130] In a first aspect, the process 600 further includes measuring one or more downlink beams transmitted by the base station (e.g., using the antennas 252, the modem 254, the MIMO detector 256, the receive processor 258, the controller / processor 280, and / or the memory 282), and transmitting a CSI report associated with the measurements for the one or more downlink beams and a scheduling request for the CG-SDT opportunity to the base station (e.g., using the antennas 252, the transmit processor 264, the TX MIMO processor 266, the modem 254, the controller / processor 280, and / or the memory 282).

[0131] In a second aspect, alone or in combination with the first aspect, a scheduling request is transmitted when measurements for at least one downlink beam satisfy a threshold from the base station, and the scheduling request is multiplexed with the CSI report.

[0132] In a third aspect, alone or in combination with one or more of the first and second aspects, the process 600 further includes verifying uplink timing alignment (e.g., using the receive processor 258, the transmit processor 264, the TX MIMO processor 266, the controller / processor 280, and / or the memory 282) on an uplink carrier configured with one or more CG-SDT opportunities before transmitting the uplink communication, such that the uplink communication is transmitted on an uplink carrier with valid timing alignment (or timing advance) using a waveform indicated by at least one of the system information, the RRC signaling, or the configuration message.

[0133] In a fourth aspect, alone or in combination with one or more of the first to third aspects, the step of verifying uplink timing alignment includes assessing (e.g., using the receive processor 258, the transmit processor 264, the TX MIMO processor 266, the controller / processor 280, and / or the memory 282) at least one of the dispersion of one or more downlink beam measurements or the status of a timing advance timer maintained by the UE.

[0134] In a fifth aspect, alone or in combination with one or more of the first to fourth aspects, the downlink beam is associated with a downlink reference signal broadcast by the base station.

[0135] In a sixth aspect, alone or in combination with one or more of the first through fifth aspects, the downlink reference signal includes at least one of an SSB, a TRS, or a CSI-SR.

[0136] In a seventh aspect, alone or in combination with one or more of the first through sixth aspects, the process 600 further includes determining (e.g., using the receive processor 258, the transmit processor 264, the TX MIMO processor 266, the controller / processor 280, and / or the memory 282) one or more CG-SDT opportunities based at least in part on a lookup table or closed form indicated by at least one of the system information or RRC signaling.

[0137] In an eighth aspect, alone or in combination with one or more of the first through seventh aspects, the process 600 further includes determining (e.g., using the receive processor 258, the transmit processor 264, the TX MIMO processor 266, the controller / processor 280, and / or the memory 282) one or more CG-SDT opportunities based at least in part on one or more parameters, the one or more parameters including beamforming measurements of downlink reference signals, a periodicity associated with the one or more CG-SDT opportunities, a time offset associated with the one or more CG-SDT opportunities, and a duration of the one or more CG-SDT opportunities.

[0138] In a ninth aspect, alone or in combination with one or more of the first to eighth aspects, a downlink beam is associated with one or more CG-SDT opportunities according to one or more association periods within an association pattern period.

[0139] In a tenth aspect, alone or in combination with one or more of the first through ninth aspects, each of the one or more association periods includes one or more constituent periods for one or more CG-SDT opportunities.

[0140] In an eleventh aspect, alone or in combination with one or more of the first to tenth aspects, each of the one or more configuration periods is an integer multiple of a burst period associated with the downlink beam.

[0141] 6 illustrates example blocks of process 600, in some aspects process 600 may include additional, fewer, different, or differently arranged blocks compared to those illustrated in FIG 6. Additionally or alternatively, two or more of the blocks of process 600 may be performed in parallel.

[0142] 7 illustrates an example process 700 performed by, for example, a base station, in accordance with the present disclosure. Example process 700 is an example in which a base station (e.g., base station 110) performs operations associated with configuring beam-based CG-SDT opportunities.

[0143] 7, in some aspects, process 700 may include transmitting a configuration message to a UE (e.g., UE 120) indicating a CG-SDT group that includes the UE (block 710). For example, the base station (e.g., using transmit processor 220, TX MIMO processor 230, modem 232, antennas 234, controller / processor 240, memory 242, and / or scheduler 246) may transmit a configuration message to the UE that indicates the CG-SDT group that includes the UE, as described herein. In some aspects, the CG-SDT group is associated with a downlink beam of the base station and one or more CG-SDT opportunities.

[0144] 7, in some aspects, process 700 may include receiving uplink communications from the UE using a spatial filter corresponding to a downlink beam of the base station within one or more CG-SDT opportunities (block 720). For example, the base station (e.g., using antennas 234, modem 232, MIMO detector 236, receive processor 238, controller / processor 240, and / or memory 242) may receive uplink communications from the UE using a spatial filter corresponding to a downlink beam of the base station within one or more CG-SDT opportunities, as described herein.

[0145] Process 700 may include additional aspects, such as any single aspect or any combination of aspects described below and / or with respect to one or more other processes described elsewhere herein.

[0146] In a first aspect, the process 700 further includes receiving from the UE (e.g., using the antenna 234, the modem 232, the MIMO detector 236, the receive processor 238, the controller / processor 240, and / or the memory 242) a CSI report and a scheduling request for the CG-SDT opportunity associated with measurements of one or more downlink beams transmitted by the base station, so that the configuration message is transmitted based at least in part on the report and the scheduling request.

[0147] In a second aspect, alone or in combination with the first aspect, a scheduling request is received when measurements of at least one downlink beam satisfy a threshold from a base station, and the scheduling request is multiplexed with a CSI report.

[0148] In a third aspect, alone or in combination with one or more of the first and second aspects, the downlink beam is associated with a downlink reference signal broadcast by the base station.

[0149] In a fourth aspect, alone or in combination with one or more of the first through third aspects, the downlink reference signal includes at least one of an SSB, a TRS, or a CSI-SR.

[0150] In a fifth aspect, alone or in combination with one or more of the first through fourth aspects, the process 700 further includes determining (e.g., using the transmit processor 220, the TX MIMO processor 230, the receive processor 238, the controller / processor 240, the memory 242, and / or the scheduler 246) one or more CG-SDT opportunities based at least in part on a lookup table or closed form indicated by at least one of the system information or the RRC signaling.

[0151] In a sixth aspect, alone or in combination with one or more of the first through fifth aspects, the process 700 further includes determining (e.g., using the transmit processor 220, the TX MIMO processor 230, the receive processor 238, the controller / processor 240, the memory 242, and / or the scheduler 246) one or more CG-SDT opportunities based at least in part on one or more parameters, the one or more parameters including beamforming measurements of downlink reference signals, a periodicity associated with the one or more CG-SDT opportunities, a time offset associated with the one or more CG-SDT opportunities, and a duration of the one or more CG-SDT opportunities.

[0152] In a seventh aspect, alone or in combination with one or more of the first to sixth aspects, a downlink beam is associated with one or more CG-SDT opportunities according to one or more association periods within an association pattern period.

[0153] In an eighth aspect, alone or in combination with one or more of the first through seventh aspects, each of the one or more association periods includes one or more constituent periods for one or more CG-SDT opportunities.

[0154] In a ninth aspect, alone or in combination with one or more of the first to eighth aspects, each of the one or more configuration periods is an integer multiple of a burst period associated with the downlink beam.

[0155] 7 illustrates example blocks of process 700, in some aspects process 700 may include additional, fewer, different, or differently arranged blocks compared to those illustrated in FIG 7. Additionally or alternatively, two or more of the blocks of process 700 may be performed in parallel.

[0156] 8 illustrates an example process 800, performed by, for example, a UE, in accordance with the present disclosure. Example process 800 is an example of a UE (e.g., UE 120) performing operations associated with using beam-based CG-SDT opportunities.

[0157] 8, in some aspects, process 800 may include transmitting a scheduling request for one or more CG-SDT opportunities to a base station (block 810). For example, the UE (e.g., using antennas 252, transmit processor 264, TX MIMO processor 266, modem 254, controller / processor 280, and / or memory 282) may transmit a scheduling request for one or more CG-SDT opportunities to a base station as described herein.

[0158] 8, in some aspects, process 800 may include transmitting measurements for one or more beam opportunities to a base station for use in one or more CG-SDT opportunities (block 820). For example, the UE (e.g., using antennas 252, transmit processor 264, TX MIMO processor 266, modem 254, controller / processor 280, and / or memory 282) may transmit measurements for one or more beam candidates to a base station for use in one or more CG-SDT opportunities, as described herein.

[0159] Process 800 may include additional aspects, such as any single aspect or any combination of aspects described below and / or with respect to one or more other processes described elsewhere herein.

[0160] In a first aspect, the measurements are transmitted separately from the scheduling requests (eg, using antennas 252, transmit processor 264, TX MIMO processor 266, modem 254, controller / processor 280, and / or memory 282).

[0161] In a second aspect, alone or in combination with the first aspect, the measurements are multiplexed with the scheduling request (e.g., using antenna 252, transmit processor 264, TX MIMO processor 266, modem 254, controller / processor 280, and / or memory 282).

[0162] In a third aspect, alone or in combination with one or more of the first and second aspects, the process 800 further includes receiving a query from a base station (e.g., using the antenna 252, the modem 254, the MIMO detector 256, the receive processor 258, the controller / processor 280, and / or the memory 282), such that a scheduling request is transmitted based at least in part on the query.

[0163] In a fourth aspect, alone or in combination with one or more of the first through third aspects, a scheduling request is transmitted to a base station together with a capability message.

[0164] In a fifth aspect, alone or in combination with one or more of the first to fourth aspects, the process 800 further includes receiving from the base station (e.g., using the antenna 252, the modem 254, the MIMO detector 256, the receive processor 258, the controller / processor 280, and / or the memory 282) one or more measurement thresholds configured for the corresponding downlink reference signal and beam index, such that the measurement values ​​transmitted to the base station satisfy the one or more measurement thresholds configured for the corresponding downlink reference signal and beam index.

[0165] In a sixth aspect, alone or in combination with one or more of the first to fifth aspects, the process 800 further includes receiving from the base station (e.g., using the antenna 252, the modem 254, the MIMO detector 256, the receive processor 258, the controller / processor 280, and / or the memory 282) an upper limit on the number of beams to be reported, so that one or more beam candidates do not exceed the upper limit.

[0166] In a seventh aspect, alone or in combination with one or more of the first to sixth aspects, the scheduling request indicates at least one of a maximum TBS, a maximum MCS, a range of periodicity for one or more CG-SDT occasions, or measurements corresponding to one or more beam candidates.

[0167] In an eighth aspect, alone or in combination with one or more of the first through seventh aspects, the process 800 further includes receiving from a base station (e.g., using the antenna 252, the modem 254, the MIMO detector 256, the receive processor 258, the controller / processor 280, and / or the memory 282) a configuration message associated with one or more CG-SDT opportunities.

[0168] In a ninth aspect, alone or in combination with one or more of the first through eighth aspects, the configuration message is unicast to the UE.

[0169] In a tenth aspect, alone or in combination with one or more of the first through ninth aspects, the configuration message includes additional information regarding timing advance confirmation for the UE.

[0170] In an eleventh aspect, alone or in combination with one or more of the first through tenth aspects, a configuration message is multicast to a group of UEs including the UE.

[0171] In a twelfth aspect, alone or in combination with one or more of the first through eleventh aspects, the configuration message includes additional information regarding timing advance confirmation for multiple UEs in the group.

[0172] 8 illustrates example blocks of process 800, in some aspects process 800 may include additional, fewer, different, or differently arranged blocks compared to those illustrated in FIG 8. Additionally or alternatively, two or more of the blocks of process 800 may be performed in parallel.

[0173] 9 illustrates an example process 900 implemented, for example, by a base station, in accordance with the present disclosure. The example process 900 is an example in which a base station (e.g., base station 110) performs operations associated with configuring beam-based CG-SDT opportunities.

[0174] 9, in some aspects, process 900 may include receiving a scheduling request associated with one or more CG-SDT opportunities from a UE (e.g., UE 120) (block 910). For example, the base station (e.g., using antennas 234, transmit processor 232, MIMO detector 236, receive processor 238, controller / processor 240, and / or memory 242) may receive a scheduling request associated with one or more CG-SDT opportunities from the UE as described herein.

[0175] 9, in some aspects, process 900 may include receiving measurements from the UE regarding one or more beam opportunities for use in one or more CG-SDT opportunities (block 920). For example, the base station (e.g., using antennas 234, modem 232, MIMO detector 236, receive processor 238, controller / processor 240, and / or memory 242) may receive measurements from the UE regarding one or more beam candidates for use in one or more CG-SDT opportunities as described herein.

[0176] Process 900 may include additional aspects, such as any single aspect or any combination of aspects described below and / or with respect to one or more other processes described elsewhere herein.

[0177] In a first aspect, measurements are received separately from scheduling requests (eg, using antenna 234, modem 232, MIMO detector 236, receive processor 238, controller / processor 240, and / or memory 242).

[0178] In a second aspect, alone or in combination with the first aspect, the measurements are multiplexed with the scheduling request (e.g., using antenna 234, modem 232, MIMO detector 236, receive processor 238, controller / processor 240, and / or memory 242).

[0179] In a third aspect, alone or in combination with one or more of the first and second aspects, the process 900 further includes sending a query to the UE (e.g., using the transmit processor 220, the TX MIMO processor 230, the modem 232, the antenna 234, the controller / processor 240, the memory 242, and / or the scheduler 246), such that a configuration request is received based at least in part on sending the query.

[0180] In a fourth aspect, alone or in combination with one or more of the first through third aspects, a configuration request is received from the UE along with a capability message.

[0181] In a fifth aspect, alone or in combination with one or more of the first to fourth aspects, the process 900 further includes transmitting to the UE (e.g., using the transmit processor 220, the TX MIMO processor 230, the modem 232, the antenna 234, the controller / processor 240, the memory 242, and / or the scheduler 246) one or more measurement thresholds configured for the corresponding downlink reference signal and beam index so that the measurement values ​​received from the UE satisfy the one or more measurement thresholds configured for the corresponding downlink reference signal and beam index.

[0182] In a sixth aspect, alone or in combination with one or more of the first through fifth aspects, the one or more measurement thresholds are based at least in part on a bandwidth associated with the base station, a cell size associated with the base station, a capability associated with the UE, or a capability associated with the base station.

[0183] In a seventh aspect, alone or in combination with one or more of the first to sixth aspects, the process 900 further includes transmitting an upper limit on the number of reported beams to the UE (e.g., using the transmit processor 220, the TX MIMO processor 230, the modem 232, the antenna 234, the controller / processor 240, the memory 242, and / or the scheduler 246) so that one or more beam candidates do not exceed the upper limit.

[0184] In an eighth aspect, alone or in combination with one or more of the first to seventh aspects, the scheduling request indicates at least one of a maximum TBS, a maximum MCS, a range of periodicity for one or more CG-SDT occasions, or measurements corresponding to one or more beam candidates.

[0185] In a ninth aspect, alone or in combination with one or more of the first through eighth aspects, the process 900 further includes transmitting to the UE (e.g., using the transmit processor 220, the TX MIMO processor 230, the modem 232, the antenna 234, the controller / processor 240, the memory 242, and / or the scheduler 246) a configuration message associated with one or more CG-SDT opportunities.

[0186] In a tenth aspect, alone or in combination with one or more of the first through ninth aspects, the configuration message is unicast to the UE.

[0187] In an eleventh aspect, alone or in combination with one or more of the first through tenth aspects, the configuration message includes additional information regarding timing advance confirmation for the UE.

[0188] In a twelfth aspect, alone or in combination with one or more of the first through eleventh aspects, a configuration message is multicast to a group of UEs including the UE.

[0189] In a thirteenth aspect, alone or in combination with one or more of the first through twelfth aspects, the configuration message includes additional information regarding timing advance confirmation for multiple UEs in the group.

[0190] 9 illustrates example blocks of process 900, in some aspects process 900 may include additional, fewer, different, or differently arranged blocks compared to those shown in FIG 9. Additionally or alternatively, two or more of the blocks of process 900 may be performed in parallel.

[0191] The following provides a summary of some aspects of the disclosure.

[0192] Aspect 1: A method of wireless communications implemented by a user equipment (UE), comprising: receiving from a base station a configuration message indicating a configuration grant-small data transfer (CG-SDT) group including the UE, the CG-SDT group being associated with a downlink beam of the base station and one or more CG-SDT opportunities; and transmitting, within the one or more CG-SDT opportunities, an uplink beam of the UE corresponding to the downlink beam of the UE, an uplink beam of the UE, the downlink beam of the UE being associated with a downlink beam of the base station used to transmit at least one of a configuration message, a paging message, or a reference message.

[0193] Aspect 2: The method of aspect 1, further comprising: measuring one or more downlink beams transmitted by the base station; and transmitting to the base station a channel state information (CSI) report associated with the measurement values ​​for the one or more downlink beams and a scheduling request for the CG-SDT opportunity.

[0194] Aspect 3: The method of aspect 2, wherein the scheduling request is transmitted when measurements for at least one downlink beam satisfy a threshold from the base station, and the scheduling request is multiplexed with the CSI report.

[0195] Aspect 4: The method of any one of aspects 1 to 3, further comprising: verifying uplink timing alignment on an uplink carrier configured with one or more CG-SDT opportunities before transmitting the uplink communication, wherein the uplink communication is transmitted on the uplink carrier with valid timing alignment using a waveform indicated by at least one of system information, radio resource control (RRC) signaling, or a configuration message.

[0196] Aspect 5: The method of aspect 4, wherein the step of verifying uplink timing alignment includes assessing at least one of a dispersion of one or more downlink beam measurements or a status of a timing advance timer maintained by the UE.

[0197] Aspect 6: The method of any one of aspects 1 to 5, wherein the downlink beam is associated with a downlink reference signal broadcast by the base station.

[0198] Aspect 7: The method of aspect 6, wherein the downlink reference signal includes at least one of a synchronization signal block (SSB), a tracking reference signal (TRS), or a channel state information reference signal (CSI-RS).

[0199] Aspect 8: The method of any one of aspects 1 to 7, further comprising determining one or more CG-SDT opportunities based at least in part on a lookup table or a closed form indicated by at least one of system information or RRC signaling.

[0200] Aspect 9: The method of any one of aspects 1 to 8, further comprising determining one or more CG-SDT occasions based at least in part on one or more parameters, the one or more parameters including beam measurements of a downlink reference signal, a periodicity associated with the one or more CG-SDT occasions, a time offset associated with the one or more CG-SDT occasions, or a duration of the one or more CG-SDT occasions.

[0201] Aspect 10: The method of any one of aspects 1 to 9, wherein the downlink beam is associated with one or more CG-SDT opportunities according to one or more association periods within an association pattern period.

[0202] Aspect 11: The method of aspect 10, wherein each of the one or more association periods includes one or more configuration periods for one or more CG-SDT occasions.

[0203] Aspect 12: The method of aspect 11, wherein each of the one or more configuration periods is an integer multiple of a burst period associated with the downlink beam.

[0204] Aspect 13: A method of wireless communications implemented by a base station, the method including: transmitting a configuration message to a user equipment (UE) indicating a configuration grant-small data transfer (CG-SDT) group including the UE, the CG-SDT group being associated with a downlink beam of the base station and one or more CG-SDT opportunities; and receiving uplink communications from the UE within the one or more CG-SDT opportunities using a spatial filter corresponding to the downlink beam of the base station.

[0205] Aspect 14: The method of aspect 13, further comprising receiving from the UE a CSI report and a scheduling request for a CG-SDT opportunity associated with measurements for one or more downlink beams transmitted by the base station, wherein a configuration message is transmitted based at least in part on the report and the scheduling request.

[0206] Aspect 15: The method of aspect 14, wherein the scheduling request is received when measurements of at least one downlink beam satisfy a threshold from the base station, and the scheduling request is multiplexed with the CSI report.

[0207] Aspect 16: The method of any one of aspects 13 to 15, wherein the downlink beam is associated with a downlink reference signal broadcast by the base station.

[0208] Aspect 17: The method of aspect 16, wherein the downlink reference signal includes at least one of a synchronization signal block (SSB), a tracking reference signal (TRS), or a channel state information reference signal (CSI-RS).

[0209] Aspect 18: The method of any one of aspects 13 to 17, further comprising determining one or more CG-SDT opportunities based at least in part on a lookup table or closed form indicated by at least one of system information or radio resource control (RRC) signaling.

[0210] Aspect 19: The method of any one of aspects 13 to 18, further comprising determining one or more CG-SDT occasions based at least in part on one or more parameters, the one or more parameters including beam measurements of a downlink reference signal, a periodicity associated with the one or more CG-SDT occasions, a time offset associated with the one or more CG-SDT occasions, or a duration of the one or more CG-SDT occasions.

[0211] Aspect 20: The method of any one of aspects 13 to 19, wherein the downlink beam is associated with one or more CG-SDT opportunities according to one or more association periods within an association pattern period.

[0212] Embodiment 21: The method of embodiment 20, wherein each of the one or more association periods includes one or more configuration periods for one or more CG-SDT occasions.

[0213] Aspect 22: The method of aspect 21, wherein each of the one or more configuration periods is an integer multiple of a burst period associated with the downlink beam.

[0214] Aspect 23: A method of wireless communications implemented by a user equipment (UE), comprising: transmitting a scheduling request for one or more configuration grant-small data transfer (CG-SDT) opportunities to a base station; and transmitting measurements on one or more beam candidates for use in the one or more CG-SDT opportunities to the base station.

[0215] Aspect 24: The method of aspect 23, wherein the measurement values ​​are transmitted separately from the scheduling request.

[0216] Aspect 25: The method of aspect 23, wherein the measurement values ​​are multiplexed with the scheduling requests.

[0217] Aspect 26: The method of any one of aspects 23 to 25, further comprising receiving a query from a base station, wherein the scheduling request is transmitted based at least in part on the query.

[0218]

[0071] Aspect 27: The method of any one of aspects 23 to 26, wherein the scheduling request is sent to the base station together with the capability message.

[0219] Aspect 28: The method of any one of aspects 23 to 27, further comprising receiving from the base station one or more measurement thresholds configured for the corresponding downlink reference signal and beam index, wherein the measurement value transmitted to the base station satisfies the one or more measurement thresholds configured for the corresponding downlink reference signal and beam index.

[0220] Aspect 29: The method of any one of aspects 23 to 28, further comprising receiving from a base station an upper limit on the number of beams to be reported, wherein one or more beam candidates do not exceed the upper limit.

[0221] Aspect 30: The method of any one of aspects 23 to 29, wherein the scheduling request indicates at least one of a maximum transport block size, a maximum modulation and coding scheme, a range of periodicity for one or more CG-SDT occasions, or measurements corresponding to one or more beam candidates.

[0222] Aspect 31: The method of any one of aspects 23 to 30, further comprising receiving, from a base station, a configuration message associated with one or more CG-SDT occasions.

[0223] Aspect 32: The method of aspect 31, wherein the configuration message is unicast to the UE.

[0224] Aspect 33: The method of aspect 32, wherein the configuration message includes additional information regarding timing advance confirmation for the UE.

[0225] Aspect 34: The method of aspect 31, wherein the configuration message is multicast to a group of UEs including the UE.

[0226] Aspect 35: The method of aspect 34, wherein the configuration message includes additional information regarding timing advance confirmation for multiple UEs in the group.

[0227] Aspect 36: A method of wireless communications implemented by a base station, the method including: receiving a scheduling request from a user equipment (UE) attached to one or more configuration grant-small data transfer (CG-SDT) opportunities; and receiving measurements from the UE regarding one or more beam candidates for use in the one or more CG-SDT opportunities.

[0228] Aspect 37: The method of aspect 36, wherein the measurement value is received separately from the scheduling request.

[0229] Aspect 38: The method of aspect 36, wherein the measurement values ​​are multiplexed with the scheduling requests.

[0230] Aspect 39: The method of any one of aspects 36 to 38, further comprising transmitting a query to the UE, wherein a scheduling request is received based at least in part on transmitting the query.

[0231] Aspect 40: The method of any one of aspects 36 to 39, wherein the scheduling request is received from the UE together with a capability message.

[0232] Aspect 41: The method of any one of aspects 36 to 40, further comprising transmitting to the UE one or more measurement thresholds configured for the corresponding downlink reference signal and beam index, wherein the measurement values ​​received from the UE satisfy the one or more measurement thresholds configured for the corresponding downlink reference signal and beam index.

[0233] Aspect 42: The method of aspect 41, wherein the one or more measurement thresholds are based at least in part on a bandwidth associated with the base station, a cell size associated with the base station, a capability associated with the UE, or a capability associated with the base station.

[0234] Aspect 43: The method of any one of aspects 36 to 42, further comprising transmitting an upper limit on the number of beams to be reported to the UE, wherein one or more beam candidates do not exceed the upper limit.

[0235] Aspect 44: The method of claim 43, wherein the upper limit is based at least in part on capabilities associated with the UE.

[0236] Aspect 45: The method of any one of aspects 36 to 44, wherein the scheduling request indicates at least one of a maximum transport block size, a maximum modulation and coding scheme, a range of periodicity for one or more CG-SDT occasions, or measurements corresponding to one or more beam candidates.

[0237] Aspect 46: The method of any one of aspects 36 to 45, further comprising transmitting a configuration message associated with one or more CG-SDT occasions to the UE.

[0238] Aspect 47: The method of aspect 46, wherein the configuration message is unicast to the UE.

[0239] Aspect 48: The method of aspect 47, wherein the configuration message includes additional information regarding timing advance confirmation for the UE.

[0240] Aspect 49: The method of aspect 46, wherein the configuration message is multicast to a group of UEs including the UE.

[0241] Aspect 50: The method of aspect 49, wherein the configuration message includes additional information regarding timing advance confirmation for multiple UEs in the group.

[0242] Aspect 51: An apparatus for wireless communication in 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 methods of aspects 1 to 12.

[0243] Aspect 52: A device for wireless communication, the device including: a memory; and one or more processors coupled to the memory, the one or more processors configured to perform one or more methods of aspects 1 to 12.

[0244] Aspect 53: An apparatus for wireless communication, the apparatus comprising at least one means for performing one or more of the methods of aspects 1 to 12.

[0245] Aspect 54: A non-transitory computer-readable medium storing code for wireless communication, the code including instructions executable by a processor to implement one or more methods of aspects 1 to 12.

[0246] Aspect 55: A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions including one or more instructions that, when executed by one or more processors of a device, cause the device to perform one or more methods of aspects 1 to 12.

[0247] Aspect 56: An apparatus for wireless communication in a device, the apparatus including: 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 methods of aspects 13 to 22.

[0248] Aspect 57: A device for wireless communication including a memory and one or more processors coupled to the memory, wherein the one or more processors are configured to perform one or more methods of aspects 13 to 22.

[0249] Aspect 58: An apparatus for wireless communication, comprising at least one means for performing one or more of the methods of aspects 13 to 22.

[0250] Aspect 59: A non-transitory computer-readable medium storing code for wireless communication, the code including instructions executable by a processor to implement one or more of the methods of aspects 13 to 22.

[0251] Aspect 60: A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions including one or more instructions that, when executed by one or more processors of a device, cause the device to perform one or more methods of aspects 13 to 22.

[0252] Aspect 61: An apparatus for wireless communication in a device, the apparatus including: 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 methods of aspects 23 to 35.

[0253] Aspect 62: A device for wireless communication, the device including: a memory; and one or more processors coupled to the memory, the one or more processors configured to perform one or more methods of aspects 23 to 35.

[0254] Aspect 63: An apparatus for wireless communication, comprising at least one means for implementing one or more of the methods of aspects 23 to 35.

[0255] Aspect 64: A non-transitory computer-readable medium storing code for wireless communication, the code including instructions executable by a processor to implement one or more of the methods of aspects 23 to 35.

[0256] Aspect 65: A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions including one or more instructions that, when executed by one or more processors of a device, cause the device to perform one or more methods of aspects 23 to 35.

[0257] Aspect 66: An apparatus for wireless communication in a device, the apparatus including: 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 methods of aspects 36 to 50.

[0258] Aspect 67: A device for wireless communication, the device including: a memory; and one or more processors coupled to the memory, the one or more processors configured to perform one or more methods of aspects 36 to 50.

[0259] Aspect 68: An apparatus for wireless communication, comprising at least one means for implementing one or more of the methods of aspects 36 to 50.

[0260] Aspect 69: A non-transitory computer-readable medium storing code for wireless communication, the code including instructions executable by a processor to implement one or more of the methods of aspects 36 to 50.

[0261] Aspect 70: A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions including one or more instructions that, when executed by one or more processors of a device, cause the device to perform one or more methods of aspects 36 to 50.

[0262] The above disclosure provides illustration and description, but is not intended to be exhaustive or to limit the embodiments to the precise form disclosed. Modifications and variations may be made in light of the above disclosure or may be acquired from practice of the embodiments.

[0263] The term "component" as used herein shall be broadly construed as hardware and / or combinations of hardware and software. "Software" shall be broadly construed to mean, among other examples, instructions, instruction sets, code, code segments, program code, programs, subprograms, software modules, applications, software applications, software packages, routines, subroutines, objects, executable files, threads of execution, procedures, and / or functions, whether referred to as software, firmware, middleware, microcode, hardware description language, or otherwise. A processor, as used herein, is implemented in hardware and / or a combination of hardware and software. It will be apparent that the systems and / or methods described herein may be implemented by any suitable means configured to perform the described methods. Implementations may include, for example, different forms of hardware and / or combinations of hardware and software. The actual dedicated control hardware or software code used to implement these systems and / or methods is not intended to limit the scope of the invention. Accordingly, the operation and behavior of the systems and / or methods have been described herein without reference to specific software code, as those skilled in the art will appreciate that software and hardware may be designed to implement the systems and / or methods based at least in part on the description herein.

[0264] As used herein, "meeting a threshold" can refer to a value being greater than the threshold, greater than or equal to the threshold, less than the threshold, less than or equal to the threshold, equal to the threshold, not equal to the threshold, etc., depending on the context.

[0265] Although particular combinations of features are recited in the claims and / or disclosed herein, these combinations do not limit the disclosure of various aspects. Many of these features may be combined in ways not specifically recited in the claims and / or disclosed herein. The disclosure of various aspects includes each dependent claim in combination with every 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 those items, including single members. As an example, "at least one of a, b, or c" is intended to encompass a, b, c, a+b, a+c, b+c, and a+b+c, as well as any combination having 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).

[0266] No element, act, or instruction used herein should be construed as critical or required unless explicitly described as such. Also, as used herein, the articles "a" and "an" are intended to include one or more items and may be used interchangeably with "one or more." Furthermore, as used herein, the article "the" is intended to include one or more items referred to in conjunction with the article "the" and may be used interchangeably with "one or more." Furthermore, as used herein, the terms "set" and "group" are intended to include one or more items and may be used interchangeably with "one or more." Where only one item is intended, the phrase "only one" or similar language is used. Also, as used herein, terms such as "has," "have," or "having" are intended to be open-ended terms that do not limit the elements they modify (e.g., an element that "has" A may also have B). Furthermore, the phrase "based on" is intended to mean "based at least in part on," unless expressly specified otherwise. Also, as used herein, the term "or" is intended to be inclusive when used consecutively and may be used interchangeably with "and / or" unless otherwise specified (e.g., when used in combination with "either" or "only one of"). [Explanation of symbols]

[0267] 100 Wireless Networks 102a Macrocell 102b Picocell 102c Femtocell 110 base station 110a BS 110b BS 110c BS 110d BS 120 User Equipment (UE) 120a UE 120b UE 120c UE 120d UE 120e UE 130 Network Controller 200 Base Station Example 212 Data Sources 220 Transmit Processor 230 Transmit (TX) Multiple Input Multiple Output (MIMO) Processor 232 modem 232a~232t modem 234 Antenna 234a~234t antenna 236 MIMO detector 238 Receive Processor 239 Data Sink 240 Controllers / Processors 242 memory 244 communication unit 246 Scheduler 252 Antenna 252a~252r Antenna 254 modem 254a~254r modem 256 MIMO detector 258 Receive Processor 260 Data Sink 262 Data Sources 264 Transmit Processor 266 TX MIMO Processor 280 Controller / Processor 282 memory 284 Housing 290 Controller / Processor 292 memory 294 Communication Unit 300 Beamforming Architecture, Architecture 302 Modem (Modulator / Demodulator) 304 Digital-to-Analog Converter (DAC), Components 306 First Mixer, Component 308 Second Mixer, Component 310 Splitter, component 312 First Amplifier, Amplifier, Component 314 Phase Shifter, Component 316 Second Amplifier, Amplifier, Component 318 Antenna Arrays, Components 320 Antenna elements, components 330 Local oscillator A, components 332 Local oscillator B, components 334 Controller / Processor, Components 344 Analog-to-Digital Converter (ADC), Components 346 Mixer, components 348 Mixer, components 350 Combiner, components 352 Second Amplifier, Amplifier, Component 354 Phase Shifter, Component 356 First Amplifier, Amplifier, Component 370 Local oscillator, component 372 Local oscillator, components 400 examples 430 examples 500 examples 505 DL Beam 505a DL Beam 505b DL Beam 510 DL Beam 515a CG-SDT Group 515b CG-STD Group 600 processes 700 processes 800 processes 900 processes

Claims

1. 1. An apparatus for wireless communication in a user equipment (UE), comprising: means for receiving, from a base station (BS), a configuration message indicating a configuration grant-small data transfer (CG-SDT) group for the UE, the CG-SDT group being associated with a downlink beam of the base station (BS) and one or more CG-SDT opportunities associated with the downlink beam; means for verifying uplink timing alignment on an uplink carrier configured with the one or more CG-SDT opportunities prior to transmitting an uplink communication within the one or more CG-SDT opportunities; means for transmitting the uplink communication to the base station (BS) within the one or more CG-SDT opportunities based at least in part on the downlink beam of the base station (BS) used to transmit a reference signal, the uplink communication being transmitted on the uplink carrier with effective timing alignment using a waveform indicated by Radio Resource Control (RRC) signaling; and An apparatus comprising:

2. means for measuring one or more downlink beams transmitted by said base station (BS); means for transmitting to the base station (BS) a channel state information (CSI) report associated with measurements for the one or more downlink beams and a scheduling request for the CG-SDT opportunity; The apparatus of claim 1 further comprising:

3. To verify the uplink timing alignment, the device: assessing at least one of a variance in one or more downlink beam measurements or a status of a timing advance timer maintained by the UE; The apparatus of claim 1 configured to:

4. The apparatus of claim 1 , wherein the downlink beam of the base station (BS) is associated with a downlink reference signal broadcast by the base station (BS).

5. 5. The apparatus of claim 4, wherein the downlink reference signal comprises at least one of a synchronization signal block (SSB), a tracking reference signal (TRS), or a channel state information reference signal (CSI-RS).

6. 10. The apparatus of claim 1, further comprising: means for determining the one or more CG-SDT opportunities based at least in part on a lookup table or a closed form indicated by at least one of system information or RRC signaling.

7. and means for determining the one or more CG-SDT opportunities based at least in part on one or more parameters, the one or more parameters comprising: Beam measurements of the downlink reference signal; a periodicity associated with said one or more CG-SDT opportunities; a time offset associated with said one or more CG-SDT occasions; or the duration of said one or more CG-SDT opportunities; The device of claim 1 , comprising at least one of:

8. 10. The apparatus of claim 1, wherein the downlink beam of the base station (BS) is associated with the one or more CG-SDT opportunities according to one or more association periods within an association pattern period.

9. The apparatus of claim 8 , wherein each of the one or more association periods includes one or more configuration periods for the one or more CG-SDT occasions.

10. 10. The apparatus of claim 9, wherein each of the one or more configuration periods is an integer multiple of a burst period associated with the downlink beam of the base station (BS).

11. 1. An apparatus for wireless communication in a base station (BS), comprising: means for transmitting a configuration message to a user equipment (UE) indicating a configuration grant-small data transfer (CG-SDT) group for the UE, the CG-SDT group being associated with a downlink beam of the base station (BS) and one or more CG-SDT opportunities associated with the downlink beam; means for receiving, within the one or more CG-SDT occasions, uplink communications from the UE based at least in part on the downlink beam of the base station (BS), the uplink communications being communicated with uplink timing alignment on an uplink carrier configured in the one or more CG-SDT occasions using a waveform indicated by Radio Resource Control (RRC) signaling; An apparatus comprising:

12. 12. The apparatus of claim 11, further comprising: means for receiving from the UE a channel state information (CSI) report associated with measurements for one or more downlink beams and a scheduling request for the CG-SDT opportunity.

13. means for determining the one or more CG-SDT opportunities based at least in part on a look-up table or closed form indicated by at least one of system information or RRC signaling; or means for determining the one or more CG-SDT occasions based at least in part on one or more parameters, the one or more parameters including a beamforming measurement of a downlink reference signal, a periodicity associated with one or more CG-SDT occasions, a time offset associated with one or more CG-SDT occasions, or a duration of the one or more CG-SDT occasions. The apparatus of claim 11 , comprising:

14. 1. A method for wireless communication in a user equipment (UE), comprising: receiving a configuration message from a base station (BS) indicating a configuration grant-small data transfer (CG-SDT) group for the UE, the CG-SDT group being associated with a downlink beam of the base station (BS) and one or more CG-SDT opportunities associated with the downlink beam; verifying uplink timing alignment on an uplink carrier configured with the one or more CG-SDT opportunities prior to transmitting an uplink communication within the one or more CG-SDT opportunities; transmitting the uplink communication to the base station (BS) within the one or more CG-SDT opportunities based at least in part on the downlink beam of the base station (BS) used to transmit a reference signal, the uplink communication being transmitted on the uplink carrier with valid timing alignment using a waveform indicated by radio resource control (RRC) signaling; A method comprising:

15. A method for wireless communication in a base station (BS), comprising: transmitting a configuration message to a user equipment (UE) indicating a configuration grant-small data transfer (CG-SDT) group for the UE, the CG-SDT group being associated with a downlink beam of the base station (BS) and one or more CG-SDT opportunities associated with the downlink beam; receiving, within the one or more CG-SDT occasions, uplink communications from the UE based at least in part on the downlink beam of the base station (BS), the uplink communications being communicated with uplink timing alignment on uplink carriers configured in the one or more CG-SDT occasions using waveforms indicated by Radio Resource Control (RRC) signaling; A method comprising:

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