Reporting switching gaps for beamforming

Abstract

Various aspects of the disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) can transmit beamforming capability information including a switching gap indicating an amount of time associated with the UE switching between an analog beamforming mode and a digital beamforming mode. The UE can receive a resource allocation based at least in part on the beamforming capability information. Numerous other aspects are described.

Description

[0001] Cross-references to related applications

[0002] This patent application claims priority to U.S. nonprovisional patent application No. 17 / 182,968, filed on February 23, 2021, entitled “REPORTING SWITCHING GAPS FOR BEAMFORMING,” which is expressly incorporated herein by reference. Technical Field

[0003] In summary, various aspects of this disclosure relate to wireless communication, and various aspects of this disclosure relate to techniques and apparatus for reporting switching gaps for beamforming. Background Technology

[0004] Wireless communication systems are widely deployed to provide a variety of telecommunications services such as telephone, video, data, messaging, and broadcasting. Typical wireless communication systems can use multiple access technologies that enable 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 / improved LTE is an enhancement set of the Universal Mobile Telecommunications System (UMTS) mobile standard released by the 3rd Generation Partnership Project (3GPP).

[0005] A wireless network may include several base stations (BSs) capable of supporting communication for multiple user equipments (UEs). UEs can communicate with the base stations (BSs) via downlinks and uplinks. A downlink (or forward link) refers to the communication link from the BS to the UE, and an uplink (or reverse link) refers to the communication link from the UE to the BS. As will be described in more detail herein, BS can refer to a node B, gNB, access point (AP), radio headend, transmit / receive point (TRP), new radio (NR) BS, 5G node B, etc.

[0006] The multiple access technology described above has been adopted in various telecommunications standards to provide a common protocol enabling different user equipment to communicate at the city, country, region, and even global levels. New Radio (NR), also known as 5G, is an enhancement set of the LTE mobile standard released by the 3rd Generation Partnership Project (3GPP). NR is designed to better support mobile broadband internet access by: improving spectrum efficiency, reducing costs, improving service, utilizing new spectrum, and better integration with other open standards such as Orthogonal Frequency Division Multiplexing (OFDM) with Cyclic Prefix (CP) on the downlink (DL) and CP-OFDM and / or SC-FDM (e.g., also known as Discrete Fourier Transform Extended OFDM (DFT-s-OFDM)) on the uplink (UL), as well as supporting beamforming, multiple-input multiple-output (MIMO) antenna technologies, and carrier aggregation. Further improvements to LTE, NR, and other radio access technologies remain useful as the demand for mobile broadband access continues to grow. Summary of the Invention

[0007] In some aspects, a user equipment (UE) for wireless communication includes: a memory; and one or more processors coupled to the memory, the memory and the one or more processors being configured to: transmit beamforming capability information including a switching gap, the switching gap indicating an amount of time associated with the UE switching between an analog beamforming mode and a digital beamforming mode; and receive resource allocation based at least in part on the beamforming capability information.

[0008] In some aspects, a base station for wireless communication includes: a memory; and one or more processors coupled to the memory, the memory and the one or more processors being configured to: receive beamforming capability information from a UE including a handover gap, the handover gap indicating an amount of time associated with the UE switching between an analog beamforming mode and a digital beamforming mode; and transmit resource allocation based at least in part on the beamforming capability information.

[0009] In some aspects, a method of wireless communication performed by a UE includes: transmitting beamforming capability information including a switching gap, the switching gap indicating an amount of time associated with the UE switching between an analog beamforming mode and a digital beamforming mode; and receiving resource allocation based at least in part on the beamforming capability information.

[0010] In some aspects, a method of wireless communication performed by a base station includes: receiving beamforming capability information from a UE, including a handover gap indicating the amount of time associated with the UE switching between an analog beamforming mode and a digital beamforming mode; and transmitting resource allocation based at least in part on the beamforming capability information.

[0011] In some aspects, a non-transitory computer-readable medium storing a set of instructions for wireless communication includes one or more instructions that, when executed by one or more processors of a UE, cause the UE to: transmit beamforming capability information including a switching gap, the switching gap indicating an amount of time associated with the UE switching between analog beamforming modes and digital beamforming modes; and receive resource allocation based at least in part on the beamforming capability information.

[0012] In some aspects, a non-transitory computer-readable medium storing a set of instructions for wireless communication includes one or more instructions that, when executed by one or more processors of a base station, cause the base station to: receive beamforming capability information from a UE including a handover gap, the handover gap indicating an amount of time associated with the UE switching between analog beamforming mode and digital beamforming mode; and transmit resource allocation based at least in part on the beamforming capability information.

[0013] In some aspects, an apparatus for wireless communication includes: a unit for transmitting beamforming capability information including a switching gap, the switching gap indicating an amount of time associated with the apparatus switching between an analog beamforming mode and a digital beamforming mode; and a unit for receiving resource allocation based at least in part on the beamforming capability information.

[0014] In some aspects, an apparatus for wireless communication includes: a unit for receiving beamforming capability information from a UE, including a switching gap indicating an amount of time associated with the UE switching between an analog beamforming mode and a digital beamforming mode; and a unit for transmitting resource allocation based at least in part on the beamforming capability information.

[0015] Aspects typically include methods, apparatus, systems, computer program products, non-transitory computer-readable media, user equipment, base stations, wireless communication equipment, and / or processing systems, as fully described herein with reference to the accompanying drawings and description, and as illustrated in the drawings and description.

[0016] To better understand the specific embodiments described below, the features and technical advantages of the examples according to this disclosure have been broadly summarized above. Additional features and advantages will be described below. The disclosed concepts and specific examples can be readily used as the basis for modifying or designing other structures to perform the same purpose as this disclosure. Such equivalent constructions do not depart from the scope of protection of the appended claims. The characteristics of the concepts disclosed herein (regarding their organization and operation), along with their associated advantages, will be better understood when the following description is considered in conjunction with the accompanying drawings. Each of the drawings is provided for illustrative and descriptive purposes and is not intended to limit the scope of the claims. Attached Figure Description

[0017] To gain a full understanding of the foregoing features of this disclosure, a more specific description of the invention, briefly summarized above, can be obtained by referring to various aspects, some of which are illustrated in the accompanying drawings. However, it should be noted that the drawings illustrate only certain typical aspects of this disclosure and are therefore not intended to limit its scope, as other equally valid aspects are permissible under this description. The same reference numerals in different drawings may identify the same or similar elements.

[0018] Figure 1 This is a diagram illustrating an example of a wireless network according to aspects of this disclosure.

[0019] Figure 2 This is a diagram illustrating an example of communication between a base station and a UE in a wireless network according to aspects of this disclosure.

[0020] Figure 3 and 4 This is a diagram illustrating an example of a beamforming architecture that supports beamforming for millimeter-wave communications according to the present disclosure.

[0021] Figure 5 This is a diagram illustrating an example of a switching gap reported for beamforming, in accordance with this disclosure.

[0022] Figure 6 and 7 This is a diagram illustrating an example process associated with the switching gaps used for beamforming, according to this disclosure.

[0023] Figure 8 and 9 This is a block diagram of an example device for wireless communication based on the present disclosure. Detailed Implementation

[0024] The various aspects of this disclosure are described more fully below with reference to the accompanying drawings. However, this disclosure may be embodied in many different forms and should not be construed as limited to any particular structure or function presented throughout this disclosure. Rather, these aspects are provided so that this disclosure will be thorough and complete, and will fully convey the scope of this disclosure to those skilled in the art. Based on the teachings herein, those skilled in the art will understand that the scope of this disclosure is intended to cover any aspect of this disclosure disclosed herein, whether implemented independently of or in combination with any other aspect of this disclosure. For example, an apparatus or a method may be implemented using any number of the aspects set forth herein. Furthermore, the scope of this disclosure is intended to cover such apparatuses or methods implemented using structures, functions, or structures and functions other than or different from the aspects of this disclosure set forth herein. It should be understood that any aspect of this disclosure disclosed herein may be embodied by one or more elements of the claims.

[0025] Several aspects of a telecommunications system will now be described with reference to various devices and techniques. These devices and techniques will be described in detail below and illustrated in the accompanying drawings, through various frames, modules, components, circuits, steps, processes, algorithms, etc. (collectively referred to as "elements"). These elements can be implemented using hardware, software, or a combination thereof. Whether such an element is implemented as hardware or software depends on the specific application and the design constraints imposed on the entire system.

[0026] It should be noted that while this document may use terms commonly associated with 5G or NR radio access technology (RAT) to describe aspects, aspects of this disclosure may be applied to other RATs, such as 3G RAT, 4G RAT and / or RATs after 5G (e.g., 6G).

[0027] Figure 1This is a diagram illustrating an example of a wireless network 100 according to aspects of this disclosure. Wireless network 100 may be or may include elements of a 5G (NR) network and / or an LTE network, as well as other examples. Wireless network 100 may include several base stations 110 (shown as BS 110a, BS 110b, BS 110c, and BS 110d) and other network entities. A base station (BS) is an entity that communicates with a user equipment (UE) and may also be referred to as an NR BS, Node B, gNB, 5G Node B (NB), access point, Transmit / Receive Point (TRP), etc. Each BS can provide communication coverage for a specific geographic area. In 3GPP, the term "cell" may refer to the coverage area of ​​a BS and / or the BS subsystem serving that coverage area, depending on the context in which the term is used.

[0028] A BS can provide communication coverage for macrocells, picocells, femtocells, and / or another type of cell. A macrocell can cover a relatively large geographic area (e.g., a radius of several kilometers) and allow unrestricted access for UEs with service subscriptions. A picocell can cover a relatively small geographic area and allow unrestricted access for UEs with service subscriptions. A femtocell can cover a relatively small geographic area (e.g., a home) and allow restricted access for UEs associated with the femtocell (e.g., UEs in a Closed User Group (CSG)). A BS for macrocells can be called a macro BS. A BS for picocells can be called a pico BS. A BS for femtocells can be called a femto BS or a home BS. Figure 1 In the example shown, BS 110a can be a macro BS for macro cell 102a, BS 110b can be a pico BS for pico cell 102b, and BS 110c can be a femto BS for femto cell 102c. A BS can support one or more (e.g., three) cells. The terms “eNB”, “base station”, “NR BS”, “gNB”, “TRP”, “AP”, “Node B”, “5G NB”, and “cell” are used interchangeably in this document.

[0029] In some respects, the cell may not necessarily be stationary, and the geographical area of ​​the cell may be movable depending on the location of the mobile BS. In some respects, BSs may use any suitable transport network to interconnect with each other and / or interconnect to one or more other BSs or network nodes (not shown) in the wireless network 100 via various types of backhaul interfaces (e.g., direct physical connections or virtual networks).

[0030] The wireless network 100 may also include a relay station. A relay station is an entity that receives data transmissions from an upstream station (e.g., a BS or a UE) and sends data transmissions to a downstream station (e.g., a UE or a BS). A relay station may also be a UE that can relay transmissions to other UEs. Figure 1 In the example shown, relay BS 110d can communicate with macro BS 110a and UE 120d to facilitate communication between BS 110a and UE 120d. A relay BS can also be referred to as a relay station, relay base station, repeater, etc.

[0031] Wireless network 100 can be a heterogeneous network comprising different types of Base Stations (BSs) (e.g., macro BSs, pico BSs, femto BSs, relay BSs, etc.). These different types of BSs can have different transmit power levels, different coverage areas, and different effects on interference in wireless network 100. For example, macro BSs can have higher transmit power levels (e.g., 5 to 40 watts), while pico BSs, femto BSs, and relay BSs can have lower transmit power levels (e.g., 0.1 to 2 watts).

[0032] Network controller 130 can be coupled to a collection of BSs and can provide coordination and control for these BSs. Network controller 130 can communicate with the BSs via backhaul. BSs can also communicate with each other, for example, directly or indirectly via wireless or wired backhaul.

[0033] UE 120 (e.g., 120a, 120b, 120c) may be distributed throughout the wireless network 100, and each UE may be stationary or mobile. UE may also be referred to as an access terminal, terminal, mobile station, user unit, station, etc. UE may be a cellular phone (e.g., a smartphone), personal digital assistant (PDA), wireless modem, wireless communication device, handheld device, laptop computer, cordless phone, wireless local loop (WLL) station, tablet device, camera, gaming device, netbook, smartbook, ultrabook, medical device or equipment, biometric sensor / device, wearable device (smartwatch, smart clothing, smart glasses, smart wristband, smart jewelry (e.g., smart ring, smart bracelet)), entertainment device (e.g., music or video device, or satellite radio device), vehicle component or sensor, smart meter / sensor, industrial manufacturing equipment, GPS device, or any other suitable device configured to communicate via wireless or wired media.

[0034] Some UEs can be viewed as Machine-Type Communication (MTC) or Evolved or Enhanced Machine-Type Communication (eMTC) UEs. MTC and eMTC UEs include, for example, robots, drones, remote devices, sensors, meters, monitors, location tags, etc., capable of communicating with base stations, another device (e.g., remote devices), or some other entity. For example, a wireless node can provide connectivity to or to a network (e.g., a wide area network such as the Internet or cellular networks) via wired or wireless communication links. Some UEs can be viewed as Internet of Things (IoT) devices and / or can be implemented as NB-IoT (Narrowband Internet of Things) devices. Some UEs can be viewed as Customer Premises Equipment (CPE). UE 120 can be included within a housing that houses the components of UE 120 (e.g., processor components and / or memory components, etc.). In some aspects, the processor components and memory components can be coupled together. For example, the processor components (e.g., one or more processors) and memory components (e.g., memory) can be operatively coupled, communicatively coupled, electronically coupled, and / or electrically coupled.

[0035] Typically, any number of wireless networks can be deployed within a given geographical area. Each wireless network can support a specific RAT and can operate on one or more frequencies. A RAT can also be called a wireless technology, air interface, etc. A frequency can also be called a carrier, frequency channel, etc. Each frequency can support a single RAT within a given geographical area to avoid interference between wireless networks using different RATs. In some cases, NR or 5G RAT networks can be deployed.

[0036] In some respects, two or more UEs 120 (e.g., shown as UE 120a and UE 120e) may communicate directly using one or more sidelink channels (e.g., without using base station 110 as an intermediary for communication with each other). For example, UE 120 may communicate using peer-to-peer (P2P) communication, device-to-device (D2D) communication, vehicle-to-everything (V2X) protocols (e.g., which may include vehicle-to-vehicle (V2V) protocols, vehicle-to-infrastructure (V2I) protocols, etc.) and / or mesh networks. In this case, UE 120 may perform scheduling operations, resource selection operations, and / or other operations described herein as being performed by base station 110.

[0037] Devices of the wireless network 100 can communicate using the electromagnetic spectrum, which can be subdivided into various categories, bands, channels, etc., based on frequency or wavelength. For example, devices of the wireless network 100 can communicate using an operating band with a first frequency range (FR1) (spanning from 410 MHz to 7.125 GHz), and / or can communicate using an operating band with a second frequency range (FR2) (spanning from 24.25 GHz to 52.6 GHz). Frequencies between FR1 and FR2 are sometimes referred to as intermediate frequencies (IFs). Although a portion of FR1 is greater than 6 GHz, FR1 is generally referred to as the "below 6 GHz" band. Similarly, FR2 is generally referred to as the "millimeter wave" band, although it is different from the extremely high frequency (EHF) band (30 GHz–300 GHz) designated as the "millimeter wave" band by the International Telecommunication Union (ITU). Therefore, unless otherwise explicitly stated, it should be understood that the terms "below 6 GHz" and the like (if used herein) can broadly refer to frequencies less than 6 GHz, frequencies within FR1, and / or intermediate frequencies (e.g., greater than 7.125 GHz). Similarly, unless otherwise explicitly stated, it should be understood that the terms "millimeter wave" and the like (if used herein) can broadly refer to frequencies within the EHF band, frequencies within FR2, and / or intermediate frequencies (e.g., less than 24.25 GHz). It is anticipated that the frequencies included in FR1 and FR2 may be modified, and the techniques described herein are applicable to those modified frequency ranges.

[0038] As pointed out above, Figure 1 This is provided as an example. Other examples may differ from the one provided. Figure 1 The example described.

[0039] Figure 2 This is a diagram illustrating an example 200 of communication between a base station 110 and a UE 120 in a wireless network 100 according to the present disclosure. The base station 110 may be equipped with T antennas 234a to 234t, and the UE 120 may be equipped with R antennas 252a to 252r, wherein generally, T ≥ 1 and R ≥ 1.

[0040] At base station 110, transmitting processor 220 can receive data for one or more UEs from data source 212, select one or more modulation and coding schemes (MCS) for each UE based at least in part on the Channel Quality Indicator (CQI) received from each UE, process the data for each UE (e.g., coding and modulation) based at least in part on the MCS selected for each UE, and provide data symbols for all UEs. Transmitting processor 220 can also process system information (e.g., semi-static resource allocation information (SRPI)) and control information (e.g., CQI requests, grants, and / or upper-layer signaling), and provide overhead symbols and control symbols. Transmitting processor 220 can also generate reference symbols for reference signals (e.g., cell-specific reference signals (CRS) or modulation reference signals (DMRS)) and synchronization signals (e.g., primary synchronization signal (PSS) or secondary synchronization signal (SSS)). The transmit (TX) multiple-input multiple-output (MIMO) processor 230 can perform spatial processing (e.g., precoding, if applicable) on data symbols, control symbols, overhead symbols, and / or reference symbols, and provide T output symbol streams to T modulators (MODs) 232a to 232t. Each modulator 232 can process its own output symbol stream (e.g., for OFDM) to obtain an output sample stream. Each modulator 232 can further process the output sample stream (e.g., convert to analog, amplify, filter, and up-convert) to obtain a downlink signal. The T downlink signals from modulators 232a to 232t can be transmitted via T antennas 234a to 234t respectively.

[0041] At UE 120, antennas 252a to 252r can receive downlink signals from base station 110 and / or other base stations, and can provide the received signals to demodulators (DEMODs) 254a to 254r respectively. Each demodulator 254 can adjust (e.g., filter, amplify, down-convert, and digitize) the received signal to obtain an input sample. Each demodulator 254 can also process the input sample (e.g., for OFDM) to obtain the received symbols. MIMO detector 256 can obtain the received symbols from all R demodulators 254a to 254r, perform MIMO detection on the received symbols (if applicable), and provide the detected symbols. Receive processor 258 can process (e.g., demodulate and decode) the detected symbols, provide decoded data for UE 120 to data sink 260, and provide decoding control information and system information to controller / processor 280. The term "controller / processor" can refer to one or more controllers, one or more processors, or a combination thereof. The channel processor can determine parameters such as the Reference Received Power (RSRP), Received Signal Strength Indicator (RSSI), Reference Received Quality (RSRQ), and / or Channel Quality Indicator (CQI). In some respects, one or more components of the UE 120 may be included in the housing 284.

[0042] Network controller 130 may include communication unit 294, controller / processor 290, and memory 292. Network controller 130 may include one or more devices, such as those in a core network. Network controller 130 may communicate with base station 110 via communication unit 294.

[0043] Antennas (e.g., antennas 234a to 234t and / or antennas 252a to 252r) may include or be included within the following: one or more antenna panels, antenna groups, antenna element sets, and / or antenna arrays, and other examples. Antenna panels, antenna groups, antenna element sets, and / or antenna arrays may include one or more antenna elements. Antenna panels, antenna groups, antenna element sets, and / or antenna arrays may include coplanar antenna element sets and / or non-coplanar antenna element sets. Antenna panels, antenna groups, antenna element sets, and / or antenna arrays may include antenna elements within a single housing and / or multiple antenna elements within housings. Antenna panels, antenna groups, antenna element sets, and / or antenna arrays may include antenna elements coupled to one or more transmitting and / or receiving components (such as...) Figure 2 One or more antenna elements (one or more components in a )

[0044] On the uplink, at UE 120, transmit processor 264 can receive and process data from data source 262 and control information from controller / processor 280 (e.g., for reporting RSRP, RSSI, RSRQ, and / or CQI). Transmit processor 264 can also generate reference symbols for one or more reference signals. Symbols from transmit processor 264 can be pre-coded (if applicable) by TX MIMO processor 266, further processed by modulators 254a to 254r (e.g., for DFT-s-OFDM or CP-OFDM), and transmitted to base station 110. In some aspects, modulators and demodulators (e.g., modulator / demodulator 254) of UE 120 can be included in a modem of UE 120. In some aspects, UE 120 includes a transceiver. The transceiver may include any combination of antenna 252, modulator and / or demodulator 254, MIMO detector 256, receive processor 258, transmit processor 264, and / or TX MIMO processor 266. The transceiver may be used by a processor (e.g., controller / processor 280) and memory 282 to perform aspects of any of the methods described herein (e.g., as referenced). Figure 5-7 (Described).

[0045] At base station 110, uplink signals from UE 120 and other UEs can be received by antenna 234, processed by demodulator 232, detected by MIMO detector 236 (if applicable), and further processed by receiver processor 238 to obtain decoded data and control information transmitted by UE 120. Receiver processor 238 can provide decoded data to data sink 239 and decoded control information to controller / processor 240. Base station 110 may include communication unit 244 and communicate with network controller 130 via communication unit 244. Base station 110 may include scheduler 246 to schedule UE 120 for downlink and / or uplink communication. In some aspects, modulators and demodulators (e.g., modulator / demodulator 232) of base station 110 may be included in a modem of base station 110. In some aspects, base station 110 includes a transceiver. The transceiver may include any combination of antenna 234, modulator and / or demodulator 232, MIMO detector 236, receive processor 238, transmit processor 220, and / or TX MIMO processor 230. The transceiver may be used by a processor (e.g., controller / processor 240) and memory 242 to perform aspects of any of the methods described herein (e.g., as referenced). Figure 5-7 (Described).

[0046] The controller / processor 240 of base station 110, the controller / processor 280 of UE 120 and / or Figure 2 Any other components may perform one or more techniques associated with reporting switching gaps for beamforming, as described in more detail elsewhere herein. For example, the controller / processor 240 of base station 110, the controller / processor 280 of UE 120, and / or Figure 2 Any other component can perform or direct, for example Figure 6 Process 600 Figure 7 The operation of process 700 and / or other processes as described herein. Memory 242 and 282 may store data and program code for base station 110 and UE 120, respectively. In some aspects, memory 242 and / or memory 282 may include a non-transitory computer-readable medium storing one or more instructions (e.g., code and / or program code) for wireless communication. For example, one or more instructions, when executed by one or more processors of base station 110 and / or UE 120 (e.g., directly, or after compilation, translation, and / or interpretation), may cause one or more processors, UE 120, and / or base station 110 to perform or instruct, for example... Figure 6 Process 600 Figure 7 The operation of process 700 and / or other processes as described herein. In some aspects, the execution instructions may include run instructions, translation instructions, compilation instructions, and / or interpretation instructions, as well as other examples.

[0047] In some aspects, the UE includes: a unit for transmitting beamforming capability information including a handover gap, the handover gap indicating the amount of time associated with the UE switching between analog beamforming modes and digital beamforming modes; or a unit for receiving resource allocation based at least partially on the beamforming capability information. In some aspects, the UE includes: a unit for communicating at least partially based on digital beamforming modes. In some aspects, the UE includes: a unit for communicating at least partially based on analog beamforming modes. In some aspects, the UE includes: a unit for determining the CSI based at least partially on CSI-RS and using a first machine learning process, or at least partially based on DMRS and using a second machine learning process to estimate the underlying channel. The unit for the UE to perform the operations described herein may include, for example, one or more of antenna 252, demodulator 254, MIMO detector 256, receive processor 258, transmit processor 264, TX MIMO processor 266, modulator 254, controller / processor 280, or memory 282.

[0048] In some aspects, the base station includes: units for receiving beamforming capability information from a UE, including a handover gap indicating the amount of time associated with the UE switching between analog beamforming modes and digital beamforming modes; and units for transmitting resource allocation based at least partially on the beamforming capability information. In some aspects, the base station includes: units for communicating at least partially based on digital beamforming modes. In some aspects, the base station includes: units for communicating at least partially based on analog beamforming modes. Units for the base station to perform the operations described herein may include, for example, one or more of a transmit processor 220, a TX MIMO processor 230, a modulator 232, an antenna 234, a demodulator 232, a MIMO detector 236, a receive processor 238, a controller / processor 240, a memory 242, or a scheduler 246.

[0049] Although Figure 2 The boxes in the diagram are shown as different components, but the functions described above with respect to these boxes can be implemented in a single hardware, software, or combined component, or in various combinations of components. For example, the functions described with respect to transmit processor 264, receive processor 258, and / or TX MIMO processor 266 can be performed by or under the control of controller / processor 280.

[0050] As pointed out above, Figure 2 This is provided as an example. Other examples may differ from the one provided. Figure 2 The example described.

[0051] Figure 3 This is a diagram illustrating examples of beamforming architectures 300 and 305 supporting beamforming for millimeter-wave communications according to this disclosure. In some aspects, architectures 300 and / or 305 can implement various aspects of wireless network 100. In some aspects, architectures 300 and / or 305 can be implemented in receiving devices (e.g., wireless communication devices, UEs, or base stations) as described herein. For example, architectures 300 and 305 can illustrate a receive chain (e.g., a radio frequency (RF) chain) for receiving communications by the receiving device. Architectures 300 and 305, as well as architectures 400 and 405, may be particularly useful for communications in millimeter-wave ranges, such as FR2.

[0052] In a broad sense, Figure 3This is a schematic diagram of example hardware components of a wireless communication device according to certain aspects of this disclosure. The components shown may include those that can be used for antenna element selection and / or for beamforming to receive wireless signals. Many architectures exist for antenna element selection and phase shifting; only two examples are shown here. Transmission lines or other waveguides, wires, traces, etc., are shown to connect the various components to illustrate how the signal to be transmitted travels between the components.

[0053] Architecture 300 includes a hybrid beamforming architecture. Architecture 305 includes a fully digital beamforming architecture. Architectures 300 and 305 include an antenna array 310. Antenna array 310 may include... N A single antenna element (not shown). An antenna element may include one or more sub-elements for radiating or receiving RF signals. For example, a single antenna element may include a first sub-element cross-polarized with a second sub-element, which can be used to independently transmit or receive cross-polarized signals. Antenna elements may include patch antennas, dipole antennas, or other types of antennas arranged in a linear, two-dimensional, or other configuration. The spacing between antenna elements may allow signals transmitted by the antenna elements at desired wavelengths to interact or interfere with each other (e.g., to form a desired beam). For example, given a desired range of wavelengths or frequencies, the spacing may provide a quarter-wavelength, half-wavelength, or other fraction of the wavelength between adjacent antenna elements to allow interaction or interference of signals transmitted by the respective antenna elements within that desired range.

[0054] In time t Located at the antenna n The signal received at the location It can propagate to the analog section 315 of architecture 300. The analog section 315 may include multiple phase shifters 320 and one or more amplifiers 325 (e.g., one amplifier 325 per RF chain, multiple amplifiers 325 per RF chain, or one amplifier 325 for multiple RF chains).

[0055] Architecture 300 includes multiple RF chains 330 (e.g., N RF RF chain). N RF It can be smaller than N (For example, the number of RF chains 330 can be less than the number of antenna elements in architecture 300). In some examples, N RF It can be 2 or 4. An architecture that includes multiple RF chains 330, as well as analog phase shifters and amplifiers, can be called a hybrid beamforming architecture. It can include a single RF chain (e.g., N RFThe architecture of =1) can be called an analog beamforming architecture. The architecture 305, which includes a digital beamformer without analog phase shifters and amplifiers, can be called a digital beamforming architecture or a digital-only beamforming architecture.

[0056] Each RF chain 330 in architecture 300 can be associated with a corresponding analog-to-digital converter (ADC) 335. The ADC 335 of the RF chain 330 can perform analog-to-digital conversion on signals received from the analog section 315. The ADC 335 can convert digital signals... y 1 [n] to Provided to digital beamformer 340. Digital beamformer 340 can be implemented at the baseband or can interface with a baseband processor. Digital beamformer 340 can perform digital domain signal processing, such as digital baseband processing, operation of control components 310 / 315 / 320 / 325 / 335, spatial configuration of communication for wireless communication devices, etc.

[0057] Architecture 305 omits the analog section 315 (e.g., phase shifter 320, amplifier 325, etc.). As shown, architecture 305 provides an ADC 345 according to the antenna elements (e.g., for...). N Each antenna element N (ADC 345). The wireless communication device can receive signals via the antenna elements of the antenna array 310, provide the signals to the ADC 345, convert the signals to the digital domain, and then process the signals through the digital beamformer 350. In architecture 305, the digital beamformer 350 handles the phase shifting, mixing, and / or other operations handled by the analog portion 315 of architecture 300.

[0058] In some respects, the ADC 335 / 345 can be associated with bit granularity. The ADC 335 / 345 can receive analog signals that are not typically quantized and can output digital signals quantized according to bit granularity. For example, a 4-bit ADC can output a 4-bit quantized signal, while an 8-bit ADC can output an 8-bit quantized signal. Generally, compared to lower bit granularity ADCs (e.g., 3-bit or 4-bit ADCs), higher bit granularity ADCs (e.g., 8-bit ADCs) are associated with a greater baseband processing burden and higher power consumption.

[0059] Compared to the hybrid beamforming architecture 300, the digital beamforming architecture 305 can provide increased flexibility for space signal processing, which can facilitate maximum ratio combination, individual adjustment of antenna phase, etc. However, at a given bit granularity of the ADC, the increased number of ADCs 345 associated with the digital beamforming architecture 305 may result in a significantly heavier processing and power burden at the digital beamformer 350 than at the digital beamformer 340 of the hybrid beamforming architecture 300. For example, the hybrid beamforming architecture 300 can be expected to have... N RF One ADC 335, while the digital beamforming architecture 305 can be expected to have N One ADC 345. To alleviate this processing and power burden, some digital beamforming architectures 300 can use ADCs with lower bit granularity than ADC 335. For example, a 3-bit or 4-bit granularity for ADC 345 can reduce baseband processing load and power consumption compared to an 8-bit granularity for ADC 345, while still providing performance benefits superior to some hybrid beamforming architectures 300 (even those associated with higher ADC bit granularity, such as 8 bits).

[0060] Wireless communication devices can be implemented using architectures 300 and / or 305. A wireless communication device can be configured to use one of a set of architectures for communicating with a base station. However, a static selection of a single architecture may limit the benefits of implementing a wireless communication device using multiple architectures. In some aspects, a static selection of a single architecture for transmitting and / or receiving communications may consume computational, communication, networking, and / or power resources. For example, a single architecture may be efficient for a first communication set (e.g., using appropriate spectral efficiency, resolution, and / or power consumption, etc.), and another architecture may be efficient for a second communication set.

[0061] As pointed out above, Figure 3 This is provided as an example. Other examples may differ from the one provided. Figure 3 The example described.

[0062] In some cases, millimeter-wave receivers can use analog or hybrid beamforming. In these cases, beamforming can be performed at the RF or intermediate frequency (IF) using a set of phase shifters (PS) (one per antenna element). This architecture reduces power consumption by using only one high-resolution analog-to-digital converter (ADC) per RF chain at the receiver. While analog and hybrid beamforming are power-efficient, they can only receive in one or a few directions at a given time. This can limit their multiplexing capabilities.

[0063] Conversely, in an all-digital architecture, beamforming can be performed in the baseband. Each antenna has an associated ADC at the receiver, enabling the receiver to simultaneously guide beams in theoretically infinite directions at a given time. However, for broadband systems, high-resolution ADCs can consume relatively large amounts of power. To achieve all-digital receiver (Rx) beamforming for millimeter waves, ADCs with very low bit resolution (e.g., less than 5 bits) can be used, making them power-efficient and cost-effective.

[0064] Figure 4 This is a diagram illustrating an example of a beamforming architecture 400 supporting beamforming for millimeter-wave communications according to the present disclosure. In some aspects, architecture 400 may implement various aspects of wireless network 100. In some aspects, architecture 400 may be implemented in a transmitting device (e.g., a wireless communication device, UE, or base station) as described herein. For example, architecture 400 may include a transmission chain (e.g., a radio frequency (RF) chain) for transmitting communications by the transmitting device.

[0065] The example beamforming architecture 400 is a hybrid ADC architecture that combines an analog beamforming architecture with a low-resolution ADC in millimeter-wave bands. As shown, for example, architecture 400 may include an antenna array 410 comprising eight antenna elements 420. Two high-resolution ADCs 430 may be associated with an analog beamformer, and eight low-resolution ADCs 440 may be associated with a digital beamformer (e.g., bypassing the analog beamformer). A UE implementing the example beamforming architecture 400 can switch between analog beamforming mode and digital beamforming mode, in which the high-resolution ADC 430 is activated and used, and in digital beamforming mode, the low-resolution ADC is activated and used (and the high-resolution ADC is deactivated). This ability to switch between modes can provide operational efficiency.

[0066] However, the UE may spend a certain amount of time (referred to herein as the handover gap) switching between analog and digital beamforming modes. During the handover gap, the UE may be unable to receive communications because the entire Rx chain may not be active. Therefore, transmissions from the base station may be missed by the UE during the handover gap and, in some cases, may be retransmitted until the UE acknowledges receipt, which can negatively impact network performance. For example, throughput and efficiency may decrease, and UE power consumption may increase, as the UE switches between beamforming modes during the handover gap.

[0067] Some of the techniques and apparatus described herein provide signaling for handover gap information for beamforming. For example, the UE can signal an indication of a handover gap. In some aspects, the handover gap for switching from analog beamforming mode to digital beamforming mode may be different from the handover gap for switching from digital beamforming mode to analog beamforming mode, and the UE can indicate both handover gaps. The handover gap information can be indicated in a capability report associated with the UE, and the base station can use the handover gap information to schedule transmissions (e.g., reference signals, uplink control and / or data transmission, and / or downlink control and / or data transmission) such that no transmissions are sent during the handover gap. In this way, communication efficiency is improved. Therefore, the UE's power consumption can be reduced, and in some aspects, this can have a positive impact on network performance. In some aspects, although the techniques and apparatus described herein may be particularly suitable for millimeter-wave communications, the techniques and apparatus described herein can be applied to frequency ranges other than millimeter-wave.

[0068] As pointed out above, Figure 4 This is provided as an example. Other examples may differ from the one provided. Figure 4 The example described.

[0069] Figure 5 This is a diagram illustrating an example 500 of a switching gap for beamforming according to the present disclosure. As shown, example 500 includes a UE 120 and a base station 110. UE 120 may include a beamforming architecture capable of switching between an analog beamforming mode using a high-resolution ADC and a digital beamforming mode using a low-resolution ADC. This beamforming architecture may be similar to... Figure 4 The example beamforming architecture shown is shown.

[0070] As shown by reference numeral 510 in the accompanying drawings, UE 120 can transmit (and base station 110 can receive) beamforming capability information including a handover gap, which indicates the amount of time associated with the UE switching between analog and digital beamforming modes. UE 120 can transmit the beamforming capability information using Media Access Control (MAC) signaling (e.g., MAC Control Element (MAC-CE)), Uplink Control Information (UCI), and / or Radio Resource Control (RRC) signaling, as well as other examples. In some aspects, the beamforming capability information can be associated with millimeter-wave frequencies. This capability information can be included in a UE capability report.

[0071] In some aspects, the handover gap may indicate the amount of time associated with the UE 120 switching from analog beamforming mode to digital beamforming mode. In some aspects, the handover gap may indicate the amount of time associated with the UE 120 switching from digital beamforming mode to analog beamforming mode. In some aspects, beamforming capability information may indicate two handover gaps: a handover gap indicating the amount of time associated with the UE 120 switching from digital beamforming mode to analog beamforming mode, and an additional handover gap indicating the amount of time associated with the UE 120 switching from analog beamforming mode to digital beamforming mode.

[0072] As indicated by reference numeral 520 in the accompanying drawings, UE 120 may receive (and base station 110 may transmit) resource allocations based at least in part on beamforming capability information. For example, base station 110 may use MAC signaling, downlink control information (DCI), and / or RRC signaling, as well as other examples, to transmit resource allocations. As noted above, base station 110 may transmit resource allocations based at least in part on beamforming capability information. For example, base station 110 may time the transmission of resource allocations so that base station 110 does not transmit resource allocations during handover intervals, resulting in the UE failing to receive resource allocations. Alternatively, base station 110 may transmit resource allocations before or after a handover interval occurs.

[0073] Alternatively, resource allocation itself may be based at least in part on beamforming capability information. As shown, for example, configuration information may indicate a first resource set 530 during which UE 120 will use a first beamforming mode (e.g., analog beamforming mode), a second resource set 540 during which UE 120 will use a second beamforming mode (e.g., digital beamforming mode), and one or more handover gaps.

[0074] In some aspects, UE 120 may communicate with base station 110 at least partially based on a digital beamforming mode or an analog beamforming mode. UE 120 may communicate with base station 110 at least partially based on a digital beamforming mode using one or more low-resolution ADCs. UE 120 may communicate with base station 110 at least partially based on an analog beamforming mode using one or more high-resolution ADCs. UE 120 may communicate with base station 110 at least partially based on a digital beamforming mode or an analog beamforming mode by transmitting at least one of data signals, control signals, or reference signals.

[0075] like Figure 5As shown, the reference signal may include a Channel State Information (CSI)-Reference Signal (CSI-RS), and periodic resources for the CSI-RS can be scheduled through resource allocation. In some aspects, the CSI-RS can be received in a dedicated symbol that does not have other signals multiplexed with the CSI-RS in the dedicated symbol. In this way, analog beamforming can be used to receive the CSI-RS, and digital beamforming can be used to receive other types of communication. In some aspects, the UE 120 can determine the CSI at least in part based on the CSI-RS and by using a machine learning process. For example, in the case where the base station transmit beam is fixed, the signal can be associated with two ports on the base station side of the communication. By scanning the UE receive beam and performing multiple 2x2 measurements (where each UE receive beam corresponds to a 2x2 measurement), the UE 120 can estimate the CSI for the underlying 8x2 channel (where 8 is the number of antennas the UE 120 has).

[0076] In some aspects, the reference signal may include a demodulation reference signal (DMRS). Resources for the DMRS can be scheduled through resource allocation. In some aspects, the UE 120 may estimate the underlying channel, at least in part, based on the DMRS and by using a machine learning process. For example, with the base station transmission beam fixed, the signal may be associated with two ports on the base station side of the communication. By scanning the UE receive beam and performing multiple 2x2 measurements, the UE 120 can estimate the underlying 8x2 channel. For example, the UE 120 may use a machine learning process to solve the inverse problem of estimating the underlying 8x2 channel.

[0077] As pointed out above, Figure 5 This is provided as an example. Other examples may differ from the one provided. Figure 5 The example described.

[0078] Figure 6 This is a diagram illustrating an example process 600 performed by a UE, for example, in accordance with this disclosure. Example process 600 is an example in which a UE (e.g., UE 120) performs operations associated with reporting a switching gap for beamforming.

[0079] like Figure 6 As shown, in some aspects, process 600 may include: transmitting beamforming capability information including a switching gap, the switching gap indicating the amount of time associated with the UE switching between analog beamforming mode and digital beamforming mode (box 610). For example, the UE (e.g., using...) Figure 8 The transmitting component 804 depicted can transmit beamforming capability information including a switching gap, the switching gap indicating the amount of time associated with the UE switching between analog beamforming mode and digital beamforming mode, such as in combination. Figure 5The description states that, in some aspects, beamforming capability information is associated with millimeter-wave frequencies. In other aspects, capability information is included in the UE capability report.

[0080] In some aspects, the handover gap indicates the amount of time associated with the UE switching from analog beamforming mode to digital beamforming mode. In other aspects, the handover gap indicates the amount of time associated with the UE switching from digital beamforming mode to analog beamforming mode. In some aspects, beamforming capability information includes additional handover gaps indicating the amount of time associated with the UE switching from analog beamforming mode to digital beamforming mode.

[0081] like Figure 6 As further shown, in some aspects, process 600 may include: receiving resource allocation based at least in part on beamforming capability information (box 620). For example, the UE (e.g., using...) Figure 8 The receiving component 802 depicted can receive resource allocation at least in part based on beamforming capability information, such as in combination with... Figure 5 Described. In some aspects, process 600 includes: communicating at least partially based on a digital beamforming mode. In some aspects, communicating at least partially based on a digital beamforming mode includes: communicating using one or more low-resolution analog-to-digital converters. In some aspects, communicating at least partially based on a digital beamforming mode includes: transmitting at least one of data signals or control signals.

[0082] In some aspects, process 600 includes: communicating at least partially based on an analog beamforming pattern. In some aspects, communicating at least partially based on an analog beamforming pattern includes: communicating using one or more high-resolution analog-to-digital converters. In some aspects, communicating at least partially based on an analog beamforming pattern includes: receiving a reference signal. In some aspects, the reference signal includes CSI-RS or DMRS. In some aspects, the CSI-RS is received in a dedicated symbol that does not have other signals multiplexed with the CSI-RS in that dedicated symbol. In some aspects, process 600 includes: determining the CSI at least partially based on the CSI-RS and using a first machine learning process, or estimating the underlying channel at least partially based on the DMRS and using a second machine learning process.

[0083] Process 600 may include additional aspects, such as any single aspect or any combination thereof described above and / or in conjunction with one or more other process descriptions elsewhere herein.

[0084] Although Figure 6An example box of process 600 is shown, but in some aspects, process 600 may include... Figure 6 The boxes depicted in the diagram are compared to additional boxes, fewer boxes, different boxes, or boxes arranged in a different manner. Alternatively, two or more boxes in process 600 may be executed in parallel.

[0085] Figure 7 This is a diagram illustrating an example process 700 performed by a base station, for example, according to this disclosure. Example process 700 is an example in which a base station (e.g., base station 110) performs operations associated with reporting handover gaps for beamforming.

[0086] like Figure 7 As shown, in some aspects, process 700 may include: receiving beamforming capability information from the UE, including a handover gap, the handover gap indicating the amount of time associated with the UE handover between analog beamforming mode and digital beamforming mode (box 710). For example, a base station (e.g., using...) Figure 9 The receiving component 902 depicted can receive beamforming capability information from the UE, including a handover gap, whereby the handover gap indicates the amount of time associated with the UE switching between analog and digital beamforming modes, such as in combination with... Figure 5 The description states that, in some aspects, beamforming capability information is associated with millimeter-wave frequencies. In other aspects, capability information is included in the UE capability report.

[0087] In some aspects, the handover gap indicates the amount of time associated with the UE switching from analog beamforming mode to digital beamforming mode. In other aspects, the handover gap indicates the amount of time associated with the UE switching from digital beamforming mode to analog beamforming mode. In some aspects, beamforming capability information includes additional handover gaps for indicating the amount of time associated with the UE switching from analog beamforming mode to digital beamforming mode.

[0088] like Figure 7 As further shown, in some aspects, process 700 may include: transmitting resource allocation based at least in part on beamforming capability information (box 720). For example, a base station (e.g., using...) Figure 9 The transmitting component 904 depicted in the image can allocate transmission resources at least in part based on beamforming capability information, such as in combination with... Figure 5 Described.

[0089] In some aspects, process 700 includes: communicating at least partially based on a digital beamforming mode. In some aspects, communicating at least partially based on a digital beamforming mode includes: transmitting at least one of a data signal or a control signal. In some aspects, process 700 includes: communicating at least partially based on an analog beamforming mode. In some aspects, communicating at least partially based on an analog beamforming mode includes: transmitting a reference signal. In some aspects, the reference signal includes CSI-RS or DMRS. In some aspects, transmitting CSI-RS includes: transmitting CSI-RS in a dedicated symbol that does not have other signals multiplexed with CSI-RS in that dedicated symbol. In some aspects, configuration information indicates resource allocation, which includes a first time-domain resource set associated with the reference signal, a second time-domain resource set associated with at least one of data communication or control communication, and a third time-domain resource set associated with a handover gap and set between the first and second time-domain resource sets.

[0090] Process 700 may include additional aspects, such as any single aspect or any combination thereof described below and / or in conjunction with one or more other process descriptions elsewhere described herein.

[0091] Although Figure 7 An example box of process 700 is shown, but in some aspects, process 700 may include... Figure 7 The boxes depicted in the diagram are compared to additional boxes, fewer boxes, different boxes, or boxes arranged in a different manner. Alternatively, two or more boxes in process 700 may be executed in parallel.

[0092] Figure 8 This is a block diagram of an example device 800 for wireless communication. Device 800 may be a UE, or a UE may include device 800. In some aspects, device 800 includes a receiving component 802 and a transmitting component 804, which can communicate with each other (e.g., via one or more buses and / or one or more other components). As shown, device 800 can use the receiving component 802 and the transmitting component 804 to communicate with another device 806 (such as a UE, a base station, or another wireless communication device). As further shown, device 800 may include a determining component 808.

[0093] In some respects, device 800 can be configured to perform the functions described herein. Figure 5 One or more operations described herein. Alternatively or concurrently, the apparatus 800 may be configured to perform one or more processes described herein, such as... Figure 6 The process is 600. In some aspects, Figure 8The device 800 and / or one or more components shown may include the elements described above. Figure 2 One or more components of the UE as described. Alternatively or in addition, Figure 8 One or more components shown can be combined with the above. Figure 2 The description refers to implementation within one or more components. Alternatively, one or more components in the set of components may be implemented, at least partially, as software stored in memory. For example, a component (or a portion of a component) may be implemented as instructions or code stored in a non-transitory computer-readable medium and executable by a controller or processor to perform the function or operation of the component.

[0094] Receiver 802 may receive communications from device 806, such as reference signals, control information, data communications, or combinations thereof. Receiver 802 may provide the received communications to one or more other components of device 800. In some aspects, receiver 802 may perform signal processing on the received communications (e.g., filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, demapping, equalization, interference cancellation, or decoding, and other examples), and may provide the processed signal to one or more other components of device 806. In some aspects, receiver 802 may include the combinations described above. Figure 2 The described UE includes one or more antennas, demodulators, MIMO detectors, receiver processors, controllers / processors, memory, or combinations thereof.

[0095] Transmitting component 804 can transmit communications to device 806, such as reference signals, control information, data communications, or combinations thereof. In some aspects, one or more other components of device 806 can generate communications and provide the generated communications to transmitting component 804 for transmission to device 806. In some aspects, transmitting component 804 can perform signal processing on the generated communications (e.g., filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding, and other examples), and can transmit the processed signals to device 806. In some aspects, transmitting component 804 can include the combinations described above. Figure 2 The described UE includes one or more antennas, modulators, transmit MIMO processors, transmit processors, controllers / processors, memory, or combinations thereof. In some aspects, the transmit component 804 may be co-located with the receive component 802 in a transceiver.

[0096] Transmitting component 804 can transmit beamforming capability information including a handover gap, the handover gap indicating the amount of time associated with the UE switching between analog beamforming mode and digital beamforming mode. Receiving component 802 can receive resource allocation based at least in part on the beamforming capability information. Receiving component 802 and / or transmitting component 804 can communicate based at least in part on digital beamforming mode and / or analog beamforming mode.

[0097] The determination of component 808 may be based at least in part on CSI-RS and CSI is determined by using a first machine learning process, or at least in part on DMRS and the underlying channel is estimated by using a second machine learning process. In some aspects, the determination of component 808 may include the combination of the above. Figure 2 The described UE includes one or more antennas, modulators, transmit MIMO processors, transmit processors, controllers / processors, memory, or combinations thereof. In some aspects, determining component 808 may include receive component 802 and / or transmit component 804.

[0098] Figure 8 The number and arrangement of components shown are provided as an example. In reality, they can exist in combination with... Figure 8 The components shown are compared to additional components, fewer components, different components, or components arranged in a different way. Furthermore, Figure 8 The two or more components shown can be implemented within a single component, or Figure 8 The single component shown can be implemented as multiple distributed components. Alternatively, Figure 8 The set (one or more) components shown can perform actions described by Figure 8 The other set of components shown performs one or more functions.

[0099] Figure 9 This is a block diagram of an example device 900 for wireless communication. Device 900 may be a base station, or a base station may include device 900. In some aspects, device 900 includes a receiving component 902 and a transmitting component 904, which can communicate with each other (e.g., via one or more buses and / or one or more other components). As shown, device 900 can use the receiving component 902 and the transmitting component 904 to communicate with another device 906 (such as a UE, a base station, or another wireless communication device). As further shown, device 900 may include a determining component 908.

[0100] In some respects, device 900 can be configured to perform the functions described herein. Figure 5 One or more operations described herein. Alternatively or concurrently, device 900 may be configured to perform one or more processes described herein, such as... Figure 7The process is 700. In some aspects, Figure 9 The device 900 and / or one or more components shown may include the elements described above. Figure 2 One or more components of the described base station. Alternatively, Figure 9 One or more components shown can be combined with the above. Figure 2 The description refers to implementation within one or more components. Alternatively, one or more components in the set of components may be implemented, at least partially, as software stored in memory. For example, a component (or a portion of a component) may be implemented as instructions or code stored in a non-transitory computer-readable medium and executable by a controller or processor to perform the function or operation of the component.

[0101] Receiver 902 may receive communications from device 906, such as reference signals, control information, data communications, or combinations thereof. Receiver 902 may provide the received communications to one or more other components of device 900. In some aspects, receiver 902 may perform signal processing on the received communications (e.g., filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, demapping, equalization, interference cancellation, or decoding, and other examples), and may provide the processed signal to one or more other components of device 906. In some aspects, receiver 902 may include the combinations described above. Figure 2 The described base station includes one or more antennas, demodulators, MIMO detectors, receiver processors, controllers / processors, memory, or combinations thereof.

[0102] Transmitting component 904 can transmit communications, such as reference signals, control information, data communications, or combinations thereof, to device 906. In some aspects, one or more other components of device 906 can generate communications and provide the generated communications to transmitting component 904 for transmission to device 906. In some aspects, transmitting component 904 can perform signal processing on the generated communications (e.g., filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding, and other examples), and can transmit the processed signals to device 906. In some aspects, transmitting component 904 can include the combinations described above. Figure 2 The described base station includes one or more antennas, a modulator, a transmit MIMO processor, a transmit processor, a controller / processor, a memory, or a combination thereof. In some aspects, the transmit component 904 may be co-located with the receive component 902 in a transceiver.

[0103] The receiving component 902 can receive beamforming capability information from the UE, including a handover gap, whereby the handover gap indicates the amount of time associated with the UE switching between analog beamforming mode and digital beamforming mode. The transmitting component 904 can transmit resource allocation based at least in part on the beamforming capability information. The receiving component 902 and / or the transmitting component 904 can communicate based at least in part on digital beamforming mode and / or analog beamforming mode.

[0104] Determining component 908 can determine beamforming configuration information. In some aspects, determining component 908 may include the combination of the above. Figure 2 The described base station includes one or more antennas, modulators, transmit MIMO processors, transmit processors, controllers / processors, memory, or combinations thereof. In some aspects, determining component 908 may include receive component 902 and / or transmit component 904.

[0105] Figure 9 The number and arrangement of components shown are provided as an example. In reality, they can exist in combination with... Figure 9 The components shown are compared to additional components, fewer components, different components, or components arranged in a different way. Furthermore, Figure 9 The two or more components shown can be implemented within a single component, or Figure 9 The single component shown can be implemented as multiple distributed components. Alternatively, Figure 9 The set (one or more) components shown can perform actions described by Figure 9 The other set of components shown performs one or more functions.

[0106] The following provides a summary of some aspects of this disclosure:

[0107] Aspect 1: A wireless communication method performed by a user equipment (UE), comprising: transmitting beamforming capability information including a handover gap, the handover gap indicating an amount of time associated with the UE switching between an analog beamforming mode and a digital beamforming mode; and receiving resource allocation based at least in part on the beamforming capability information.

[0108] Aspect 2: According to the method of aspect 1, wherein the beamforming capability information is associated with the millimeter wave frequency.

[0109] Aspect 3: The method according to aspect 1 or 2, wherein the capability information is included in the UE capability report.

[0110] Aspect 4: The method according to any one of Aspects 1-3, wherein the switching gap indicates the amount of time associated with the UE switching from the analog beamforming mode to the digital beamforming mode.

[0111] Aspect 5: The method according to any one of Aspects 1-3, wherein the switching gap indicates the amount of time associated with the UE switching from the digital beamforming mode to the analog beamforming mode.

[0112] Aspect 6: According to the method of aspect 5, wherein the beamforming capability information includes an additional switching gap indicating the amount of time associated with the UE switching from the analog beamforming mode to the digital beamforming mode.

[0113] Aspect 7: The method according to any one of aspects 1-6 further includes: communicating at least in part based on the digital beamforming pattern.

[0114] Aspect 8: According to the method of aspect 7, wherein communicating at least in part based on the digital beamforming mode comprises: communicating using one or more low-resolution analog-to-digital converters.

[0115] Aspect 9: The method according to aspect 7 or 8, wherein communication based at least in part on the digital beamforming mode comprises: transmitting at least one of data signals or control signals.

[0116] Aspect 10: The method according to any one of aspects 1-9 further includes: communicating at least in part based on the simulated beamforming pattern.

[0117] Aspect 11: The method according to aspect 10, wherein communicating at least in part based on the analog beamforming mode comprises: communicating using one or more high-resolution analog-to-digital converters.

[0118] Aspect 12: The method according to any one of Aspects 10 or 11, wherein communication based at least in part on the analog beamforming pattern comprises: receiving a reference signal.

[0119] Aspect 13: The method according to aspect 12, wherein the reference signal includes a channel state information (CSI) reference signal (CSI-RS) or a demodulation reference signal (DMRS).

[0120] Aspect 14: The method according to aspect 13, wherein the CSI-RS is received in a dedicated symbol, the dedicated symbol not having other signals multiplexed with the CSI-RS in the dedicated symbol.

[0121] Aspect 15: The method according to aspect 13 or 14 further includes: determining the CSI based at least in part on the CSI-RS and by using a first machine learning process, or estimating the underlying channel based at least in part on the DMRS and by using a second machine learning process.

[0122] Aspect 16: A method of wireless communication performed by a base station, comprising: receiving beamforming capability information from a user equipment (UE) including a handover gap, the handover gap indicating an amount of time associated with the UE handover between an analog beamforming mode and a digital beamforming mode; and transmitting resource allocation based at least in part on the beamforming capability information.

[0123] Aspect 17: According to the method of aspect 16, wherein the beamforming capability information is associated with the millimeter wave frequency.

[0124] Aspect 18: The method according to aspect 16 or 17, wherein the capability information is included in the UE capability report.

[0125] Aspect 19: The method according to any one of Aspects 16-18, wherein the switching gap indicates the amount of time associated with the UE switching from the analog beamforming mode to the digital beamforming mode.

[0126] Aspect 20: The method according to any one of Aspects 16-18, wherein the switching gap indicates the amount of time associated with the UE switching from the digital beamforming mode to the analog beamforming mode.

[0127] Aspect 21: According to the method of aspect 20, wherein the beamforming capability information includes an additional switching gap indicating the amount of time associated with the UE switching from the analog beamforming mode to the digital beamforming mode.

[0128] Aspect 22: The method according to any one of aspects 16-22 further includes: communicating at least in part based on the digital beamforming pattern.

[0129] Aspect 23: According to the method of aspect 22, wherein communicating at least in part based on the digital beamforming mode comprises: transmitting at least one of data signals or control signals.

[0130] Aspect 24: The method according to any one of aspects 16-23 further includes: communicating at least in part based on the simulated beamforming pattern.

[0131] Aspect 25: According to the method of aspect 24, wherein communicating based at least in part on the analog beamforming pattern includes: transmitting a reference signal.

[0132] Aspect 26: According to the method of aspect 25, wherein the reference signal includes a channel state information reference signal (CSI-RS) or a demodulation reference signal (DMRS).

[0133] Aspect 27: According to the method of aspect 26, transmitting the CSI-RS includes: transmitting the CSI-RS in a dedicated symbol, the dedicated symbol not having other signals multiplexed with the CSI-RS in the dedicated symbol.

[0134] Aspect 28: The method according to any one of Aspects 16-27, wherein the configuration information indicates resource allocation, the resource allocation comprising: a first time-domain resource set associated with the reference signal; a second time-domain resource set associated with at least one of data communication or control communication; and a third time-domain resource set associated with the switching gap and disposed between the first time-domain resource set and the second time-domain resource set.

[0135] Aspect 29: An apparatus for wireless communication at a device, comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform the method according to one or more of aspects 1-15.

[0136] Aspect 30: An apparatus for wireless communication, comprising a memory and one or more processors coupled to the memory, the memory and the one or more processors being configured to perform the method according to one or more of aspects 1-15.

[0137] Aspect 31: An apparatus for wireless communication, comprising at least one unit for performing the method according to one or more of aspects 1-15.

[0138] Aspect 32: A non-transitory computer-readable medium storing code for wireless communication, said code comprising instructions executable by a processor to perform the methods described in accordance with one or more of aspects 1-15.

[0139] Aspect 33: A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions comprising one or more instructions which, when executed by one or more processors of a device, cause the device to perform the method according to one or more aspects of aspects 1-15.

[0140] Aspect 34: An apparatus for wireless communication at a device, comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform the method according to one or more of aspects 16-28.

[0141] Aspect 35: An apparatus for wireless communication, comprising a memory and one or more processors coupled to the memory, the memory and the one or more processors being configured to perform the method according to one or more aspects of aspects 16-28.

[0142] Aspect 36: An apparatus for wireless communication, comprising at least one unit for performing the method according to one or more aspects of aspects 16-28.

[0143] Aspect 37: A non-transitory computer-readable medium storing code for wireless communication, said code comprising instructions executable by a processor to perform the methods described in one or more of aspects 16-28.

[0144] Aspect 38: A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions comprising one or more instructions which, when executed by one or more processors of a device, cause the device to perform the method according to one or more aspects of aspects 16-28.

[0145] The foregoing disclosure provides explanations and descriptions, but is not intended to be exhaustive or to limit the aspects to the precise form disclosed. Modifications and variations can be made based on the foregoing disclosure, or modifications and variations can be derived from practice in the aspects.

[0146] As used herein, the term "component" is intended to be interpreted broadly as hardware and / or a combination of hardware and software. Whether referred to as software, firmware, middleware, microcode, hardware description language, or other names, "software" should be interpreted broadly as instructions, instruction sets, code, code segments, program code, programs, subroutines, software modules, applications, software applications, software packages, routines, subroutines, objects, executable files, threads of execution, procedures and / or functions, and other examples. As used herein, processors are implemented using hardware and / or a combination of hardware and software. It will be apparent that the systems and / or methods described herein can be implemented using various forms of hardware and / or combinations of hardware and software. The actual specialized control hardware or software code used to implement these systems and / or methods is not a limitation in any respect. Therefore, while the operation and behavior of systems and / or methods are described herein without reference to specific software code, it is to be understood that software and hardware can be designed to implement systems and / or methods, at least in part, based on the descriptions herein.

[0147] As used in this article, depending on the context, satisfying the threshold can refer to a value 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.

[0148] Even if a specific combination of features is recited in the claims and / or disclosed in the specification, such combinations are not intended to limit the disclosure of the aspects. In fact, many of these features can be combined in ways that are not specifically recited in the claims and / or specifically disclosed in the specification. While each dependent claim listed herein may directly depend on only one claim, the disclosure of an aspect includes a combination of each dependent claim with every other claim in the claim set. As used herein, the phrase “at least one of” in the list of items refers to any combination of those items, including a single member. For example, “at least one of a, b, or c” is intended to cover a, b, c, ab, ac, bc, and abc, as well as any combination with a plurality of the same elements (e.g., aa, aaa, aab, aac, abb, acc, bb, bbb, bbc, cc, and ccc, or any other ordering of a, b, and c).

[0149] None of the elements, actions, or instructions used herein should be construed as critical or essential unless explicitly stated otherwise. Furthermore, as used herein, the articles “a” and “an” are intended to include one or more items and are interchangeable with “one or more.” Furthermore, as used herein, the article “the” is intended to include one or more items referenced in combination with the article “the” and is interchangeable with “the one or more.” Furthermore, as used herein, the terms “set” and “group” are intended to include one or more items (e.g., related items, unrelated items, or a combination of related and unrelated items) and are interchangeable with “one or more.” Where only one item is anticipated, the phrase “only one” or similar language is used. Furthermore, as used herein, the terms “has,” “have,” “having,” etc., are intended to be open-ended terms. Furthermore, unless explicitly stated otherwise, the phrase “based on” is intended to mean “at least partially based on.” Furthermore, as used herein, the term “or” is intended to be inclusive when used in a series and may be used interchangeably with “and / or” unless otherwise expressly stated (e.g., if used in conjunction with “any” or “only one of”).

Claims

1. A user equipment (UE) for wireless communication, comprising: Memory; as well as One or more processors coupled to the memory, wherein the memory and the one or more processors are configured to: Sending beamforming capability information, wherein the beamforming capability information includes: The first switching gap indicates the first amount of time associated with the UE switching from analog beamforming mode to digital beamforming mode, and The second switching gap indicates a second amount of time associated with the UE switching from the digital beamforming mode to the analog beamforming mode; and Resource allocation is received at least in part based on the beamforming capability information, wherein the resource allocation includes: A first time-domain resource set, which is associated with the UE using the analog beamforming mode and the first analog-to-digital converter. A second time-domain resource set, associated with the UE using the digital beamforming mode and a second analog-to-digital converter, wherein the second analog-to-digital converter has a lower resolution than the first analog-to-digital converter, and A third time-domain resource set used for the switching gap, located between the first time-domain resource set and the second time-domain resource set, wherein the switching gap is at least partially based on either the first or the second switching gap.

2. The UE of claim 1, wherein, The beamforming capability information is associated with the millimeter-wave frequency.

3. The UE according to claim 1, wherein, The beamforming capability information is included in the UE capability report.

4. The UE of claim 1, wherein, The memory and the one or more processors are also configured to communicate, at least in part, based on the digital beamforming pattern.

5. The UE of claim 4, wherein, When communication is performed at least in part based on the digital beamforming mode, the memory and the one or more processors are configured to communicate using the second analog-to-digital converter.

6. The UE of claim 4, wherein, When communication is performed at least in part based on the digital beamforming pattern, the memory and the one or more processors are configured to transmit at least one of data signals or control signals.

7. The UE of claim 1, wherein, The memory and the one or more processors are also configured to communicate, at least in part, based on the analog beamforming pattern.

8. The UE of claim 7, wherein, When communication is performed at least in part based on the analog beamforming pattern, the memory and the one or more processors are configured to communicate using the first analog-to-digital converter.

9. The UE of claim 7, wherein, When communication is performed at least in part based on the analog beamforming pattern, the memory and the one or more processors are configured to receive a reference signal.

10. The UE of claim 9, wherein, The reference signal includes a channel state information (CSI) reference signal (CSI-RS) or a demodulation reference signal (DMRS).

11. The UE of claim 10, wherein, The CSI-RS is received in a dedicated symbol that does not have other signals multiplexed with the CSI-RS in the dedicated symbol.

12. The UE according to claim 10, wherein, The one or more processors are further configured to: determine the CSI based at least in part on the CSI-RS and by using a first machine learning process, or estimate the underlying channel based at least in part on the DMRS and by using a second machine learning process.

13. A base station for wireless communication, comprising: Memory; as well as One or more processors coupled to the memory, wherein the memory and the one or more processors are configured to: Receive beamforming capability information from user equipment (UE), wherein the beamforming capability information includes: The first switching gap indicates the first amount of time associated with the UE switching from analog beamforming mode to digital beamforming mode, and The second switching gap indicates a second amount of time associated with the UE switching from the digital beamforming mode to the analog beamforming mode; and Resource allocation is based at least in part on the beamforming capability information, wherein the resource allocation includes: A first time-domain resource set, which is associated with the UE using the analog beamforming mode and the first analog-to-digital converter. A second time-domain resource set, associated with the UE using the digital beamforming mode and a second analog-to-digital converter, wherein the second analog-to-digital converter has a lower resolution than the first analog-to-digital converter, and A third time-domain resource set used for the switching gap, located between the first time-domain resource set and the second time-domain resource set, wherein the switching gap is at least partially based on either the first or the second switching gap.

14. The base station of claim 13, wherein, The beamforming capability information is associated with the millimeter-wave frequency.

15. The base station of claim 13, wherein, The beamforming capability information is included in the UE capability report.

16. The base station of claim 13, wherein, The memory and the one or more processors are also configured to communicate, at least in part, based on the digital beamforming pattern.

17. The base station of claim 16, wherein, When communication is performed at least in part based on the digital beamforming pattern, the memory and the one or more processors are configured to transmit at least one of data signals or control signals.

18. The base station of claim 13, wherein, The memory and the one or more processors are also configured to communicate, at least in part, based on the analog beamforming pattern.

19. The base station of claim 18, wherein, When communication is performed at least in part based on the simulated beamforming pattern, the memory and the one or more processors are configured to transmit reference signals.

20. The base station of claim 19, wherein, The reference signal includes a channel state information reference signal (CSI-RS) or a demodulation reference signal (DMRS).

21. The base station of claim 20, wherein, When the CSI-RS is transmitted, the memory and the one or more processors are configured to transmit the CSI-RS in a dedicated symbol that does not have other signals multiplexed with the CSI-RS in the dedicated symbol.

22. The base station according to claim 13, wherein, The first time-domain resource set is associated with a reference signal; and The second time-domain resource set is associated with at least one of data communication or control communication.

23. A method for wireless communication performed by a user equipment (UE), comprising: Sending beamforming capability information, wherein the beamforming capability information includes: The first switching gap indicates the first amount of time associated with the UE switching from analog beamforming mode to digital beamforming mode, and The second switching gap indicates a second amount of time associated with the UE switching from the digital beamforming mode to the analog beamforming mode; and Resource allocation is received at least in part based on the beamforming capability information, wherein the resource allocation includes: A first time-domain resource set, which is associated with the UE using the analog beamforming mode and the first analog-to-digital converter. A second time-domain resource set, associated with the UE using the digital beamforming mode and a second analog-to-digital converter, wherein the second analog-to-digital converter has a lower resolution than the first analog-to-digital converter, and A third time-domain resource set used for the switching gap, located between the first time-domain resource set and the second time-domain resource set, wherein the switching gap is at least partially based on either the first or the second switching gap.

24. A method for wireless communication performed by a base station, comprising: Receive beamforming capability information from user equipment (UE), wherein the beamforming capability information includes: The first switching gap indicates the first amount of time associated with the UE switching from analog beamforming mode to digital beamforming mode, and The second switching gap indicates a second amount of time associated with the UE switching from the digital beamforming mode to the analog beamforming mode; and Resource allocation is based at least in part on the beamforming capability information, wherein the resource allocation includes: A first time-domain resource set, which is associated with the UE using the analog beamforming mode and the first analog-to-digital converter. A second time-domain resource set, associated with the UE using the digital beamforming mode and a second analog-to-digital converter, wherein the second analog-to-digital converter has a lower resolution than the first analog-to-digital converter, and A third time-domain resource set used for the switching gap, located between the first time-domain resource set and the second time-domain resource set, wherein the switching gap is at least partially based on either the first or the second switching gap.

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