Mapping reference signal resources to virtual panels

Abstract

In general, various aspects of the present disclosure relate to wireless communications. In some aspects, a user equipment (UE) may determine multiple virtual antenna panels, where the multiple virtual antenna panels correspond to multiple antenna port groups and are mapped to one or more portions of at least one physical antenna panel. The UE may map multiple reference signal resources to the multiple virtual antenna panels. The UE may transmit reference signals to a base station using the multiple reference signal resources based at least in part on the mapping. Numerous other aspects are provided.

Description

Technical Field

[0001]

[0006] Generally speaking, aspects of this disclosure relate to wireless communications, and aspects of this disclosure relate to techniques and apparatus for mapping reference signal resources to virtual panels. Background Art

[0002] Wireless communication systems are widely deployed to provide a variety of 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 enhancements to the Universal Mobile Telecommunications System (UMTS) mobile standard promulgated by the Third Generation Partnership Project (3GPP).

[0003] A wireless network may include multiple base stations (BSs) that can support communications for multiple user equipment (UEs). User equipment (UEs) can communicate with a base station (BS) via downlinks and uplinks. A downlink (or forward link) refers to the communication link from the BS to the UE, while an uplink (or reverse link) refers to the communication link from the UE to the BS. As will be described in more detail herein, a BS may be referred to as a Node B, gNB, access point (AP), radio head, transmit receive point (TRP), new radio (NR) BS, 5G Node B, etc.

[0004] The above multiple access technologies have been adopted in various telecommunication standards to provide a common protocol that enables different user devices to communicate at a city, country, region, and even global level. New Radio (NR) (which may also be referred to as 5G) is a set of enhancements to the LTE mobile standard released by the Third Generation Partnership Project (3GPP). NR is designed to better integrate with other open standards by improving spectrum efficiency, reducing costs, improving services, utilizing new spectrum, and using orthogonal frequency division multiplexing (OFDM) (CP-OFDM) with a cyclic prefix (CP) on the downlink (DL) and CP-OFDM and / or SC-FDM (e.g., also known as discrete Fourier transform spread OFDM (DFT-s-OFDM)) on the uplink (UL), thereby better supporting mobile broadband Internet access, as well as supporting beamforming, multiple-input multiple-output (MIMO) antenna technology, and carrier aggregation. As the demand for mobile broadband access continues to grow, further improvements to LTE, NR, and other radio access technologies remain useful. Summary of the Invention

[0005] In some aspects, a method of wireless communication performed by a user equipment (UE) includes: determining a plurality of virtual antenna panels, wherein the plurality of virtual antenna panels correspond to a plurality of antenna port groups and are mapped to one or more portions of at least one physical antenna panel; mapping a plurality of reference signal resources to the plurality of virtual antenna panels; and sending a reference signal to a base station using the plurality of reference signal resources based at least in part on the mapping.

[0006] In some aspects, a method of wireless communication performed by a base station includes: sending an indication of multiple reference signal resources to a UE; receiving an indication of multiple virtual antenna panels from the UE, wherein the multiple virtual antenna panels correspond to multiple antenna port groups and are mapped to one or more portions of at least one physical antenna panel; and receiving reference signals from the UE using the multiple reference signal resources based at least in part on the multiple virtual antenna panels.

[0007] In some aspects, a UE for wireless communication includes: a memory and one or more processors coupled to the memory, the memory and the one or more processors configured to: determine a plurality of virtual antenna panels, wherein the plurality of virtual antenna panels correspond to a plurality of antenna port groups and are mapped to one or more portions of at least one physical antenna panel; map a plurality of reference signal resources to the plurality of virtual antenna panels; and send a reference signal to a base station using the plurality of reference signal resources based at least in part on the mapping.

[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 configured to: send an indication of multiple reference signal resources to a UE; receive an indication of multiple virtual antenna panels from the UE, wherein the multiple virtual antenna panels correspond to multiple antenna port groups and are mapped to one or more portions of at least one physical antenna panel; and receive reference signals from the UE using the multiple reference signal resources based at least in part on the multiple virtual antenna panels.

[0009] In some aspects, a non-transitory computer-readable medium storing an instruction set for wireless communication includes one or more instructions that, when executed by one or more processors of a UE, cause the UE to: determine a plurality of virtual antenna panels, wherein the plurality of virtual antenna panels correspond to a plurality of antenna port groups and are mapped to one or more portions of at least one physical antenna panel; map a plurality of reference signal resources to the plurality of virtual antenna panels; and send a reference signal to a base station using the plurality of reference signal resources based at least in part on the mapping.

[0010] In some aspects, a non-transitory computer-readable medium storing an instruction set 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: send an indication of multiple reference signal resources to a UE; receive an indication of multiple virtual antenna panels from the UE, wherein the multiple virtual antenna panels correspond to multiple antenna port groups and are mapped to one or more portions of at least one physical antenna panel; and receive reference signals from the UE using the multiple reference signal resources based at least in part on the multiple virtual antenna panels.

[0011] In some aspects, an apparatus for wireless communication includes: a unit for determining a plurality of virtual antenna panels, wherein the plurality of virtual antenna panels correspond to a plurality of antenna port groups and are mapped to one or more portions of at least one physical antenna panel; a unit for mapping a plurality of reference signal resources to the plurality of virtual antenna panels; and a unit for sending a reference signal to a base station using the plurality of reference signal resources based at least in part on the mapping.

[0012] In some aspects, an apparatus for wireless communication includes: a unit for sending an indication of multiple reference signal resources to a UE; a unit for receiving an indication of multiple virtual antenna panels from the UE, wherein the multiple virtual antenna panels correspond to multiple antenna port groups and are mapped to one or more portions of at least one physical antenna panel; and a unit for receiving reference signals from the UE using the multiple reference signal resources based at least in part on the multiple virtual antenna panels.

[0013] In summary, aspects 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 by the accompanying figures and description.

[0014] The foregoing has generally outlined the features and technical advantages of the examples according to the present disclosure so that the following detailed description may be better understood. Additional features and advantages will be described below. The disclosed concepts and specific examples may be readily used as a basis for modifying or designing other structures for achieving the same purpose of the present disclosure. Such equivalent constructions do not depart from the scope of the appended claims. The characteristics of the concepts disclosed herein (both their organization and method of operation) and the associated advantages will be better understood from the description below when considered in conjunction with the accompanying drawings. Each of the figures in the accompanying drawings is provided for the purpose of illustration and description and is not intended to be a definition of limitations to the claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to fully understand the above-mentioned features of the present disclosure, a more detailed description of the invention briefly summarized above can be obtained by referring to various aspects (some of which are shown in the accompanying drawings). However, it should be noted that the accompanying drawings only illustrate certain typical aspects of the present disclosure and are therefore not to be considered as limiting the scope of the present disclosure, as the description may allow for other equally effective aspects. The same reference numerals in different drawings may identify the same or similar elements.

[0016] Figure 1 is a diagram illustrating an example of a wireless network in accordance with various aspects of the present disclosure.

[0017] Figure 2 is a diagram illustrating an example of a base station communicating with a UE in a wireless network according to various aspects of the present disclosure.

[0018] Figure 3 is a diagram illustrating examples of antenna ports according to various aspects of the present disclosure.

[0019] Figure 4is a diagram illustrating an example of a sounding reference signal (SRS) resource set in accordance with various aspects of the present disclosure.

[0020] Figure 5 is a diagram illustrating examples associated with a virtual antenna panel according to various aspects of the present disclosure.

[0021] Figure 6A and 6B is a diagram illustrating an example associated with flexible gap times between reference signal resources in accordance with various aspects of the present disclosure.

[0022] Figure 7 and 8 is a diagram illustrating example processes associated with mapping reference signal resources to virtual panels in accordance with various aspects of the present disclosure.

[0023] Figure 9 and 10 is a block diagram of an example apparatus for wireless communication in accordance with various aspects of the present disclosure. DETAILED DESCRIPTION

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

[0025] Several aspects of telecommunications systems will now be presented with reference to various devices and techniques. These devices and techniques will be described in the following detailed description by various blocks, modules, components, circuits, steps, processes, algorithms, etc. (collectively referred to as "elements") and illustrated in the accompanying drawings. These elements may be implemented using hardware, software, or a combination thereof. Whether such elements are implemented as hardware or software depends on the specific application and the design constraints imposed on the overall system.

[0026] It should be noted that while various aspects may be described herein using terminology generally associated with 5G or NR radio access technologies (RATs), various aspects of the present disclosure may be applied to other RATs, such as 3G RATs, 4G RATs, and / or RATs beyond 5G (e.g., 6G).

[0027] Figure 1 is a diagram illustrating an example of a wireless network 100 according to various aspects of the present disclosure. The wireless network 100 may be or may include elements of a 5G (NR) network, an LTE network, or the like. The wireless network 100 may include multiple base stations 110 (illustrated 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, a Node B, a gNB, a 5G Node B (NB), an access point, a transmit receive point (TRP), or the like. Each BS may provide communication coverage for a specific geographic area. In 3GPP, the term "cell" may refer to a coverage area of ​​a BS and / or a BS subsystem serving that coverage area, depending on the context in which the term is used.

[0028] A BS may provide communication coverage for a macro cell, a pico cell, a femto cell, and / or another type of cell. A macro cell may cover a relatively large geographic area (e.g., several kilometers in radius) and may allow unrestricted access by UEs with service subscription. A pico cell may cover a relatively small geographic area and may allow unrestricted access by UEs with service subscription. A femto cell may cover a relatively small geographic area (e.g., a residence) and may allow restricted access by UEs associated with the femto cell (e.g., UEs in a closed subscriber group (CSG)). A BS for a macro cell may be referred to as a macro BS. A BS for a pico cell may be referred to as a pico BS. A BS for a femto cell may be referred to as a femto BS or a home BS. In Figure 1 In the example shown in FIG, BS 110a may be a macro BS for macrocell 102a, BS 110b may be a pico BS for picocell 102b, and BS 110c may be a femto BS for femtocell 102c. A BS may support one or more (e.g., three) cells. The terms "eNB," "base station," "NR BS," "gNB," "TRP," "AP," "Node B," "5G NB," and "cell" may be used interchangeably herein.

[0029] In some aspects, the cells may not necessarily be stationary, and the geographic area of ​​the cells may move depending on the location of the mobile BS. In some aspects, the BSs may be interconnected to each other and / or to one or more other BSs or network nodes (not shown) in the wireless network 100 via various types of backhaul interfaces (such as direct physical connections, virtual networks, etc.) using any suitable transport network.

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

[0031] The wireless network 100 may be a heterogeneous network including different types of BSs (e.g., macro BSs, pico BSs, femto BSs, relay BSs, etc.). These different types of BSs may have different transmit power levels, different coverage areas, and different impacts on interference in the wireless network 100. For example, a macro BS may have a high transmit power level (e.g., 5 to 40 watts), while a pico BS, a femto BS, and a relay BS may have a lower transmit power level (e.g., 0.1 to 2 watts).

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

[0033] UEs 120 (e.g., 120a, 120b, 120c) may be dispersed throughout the wireless network 100, and each UE may be stationary or mobile. A UE may also be referred to as an access terminal, terminal, mobile station, subscriber unit, station, etc. 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 device, a camera, a gaming device, a netbook, a smartbook, an ultrabook, a medical device or apparatus, a biometric sensor / device, a wearable device (e.g., a smart watch, smart clothing, smart glasses, a smart wristband, smart jewelry (e.g., a smart ring, a smart bracelet, etc.)), an entertainment device (e.g., a music or video device, or a satellite radio unit, etc.), a vehicle component or sensor, a smart meter / sensor, industrial manufacturing equipment, a global positioning system device, or any other suitable device configured to communicate via a wireless or wired medium.

[0034] Some UEs may be considered 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., which can communicate with a base station, another device (e.g., a remote device), or some other entity. A wireless node may provide a connection to or to a network (e.g., a wide area network such as the Internet or a cellular network) via, for example, a wired or wireless communication link. Some UEs may be considered Internet of Things (IoT) devices and / or may be implemented as NB-IoT (narrowband Internet of Things) devices. Some UEs may be considered customer premises equipment (CPE). UE 120 may be included inside a housing that houses components of UE 120 (such as a processor component, a memory component, etc.). In some aspects, the processor component and the memory component may be coupled together. For example, a processor component (e.g., one or more processors) and a memory component (e.g., a memory) may be operatively coupled, communicatively coupled, electronically coupled, electrically coupled, etc.

[0035] In general, any number of wireless networks can be deployed in a given geographic area. Each wireless network can support a specific RAT and can operate on one or more frequencies. RAT can also be referred to as radio technology, air interface, etc. Frequency can also be referred to as carrier, frequency channel, etc. Each frequency can support a single RAT in a given geographic area to avoid interference between wireless networks of different RATs. In some cases, NR or 5G RAT networks can be deployed.

[0036] In some aspects, two or more UEs 120 (e.g., shown as UE 120a and UE 120e) can communicate directly using one or more sidelink channels (e.g., without using the base station 110 as an intermediary to communicate with each other). For example, the UEs 120 can 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.), mesh networks, etc. In this case, the UEs 120 can perform scheduling operations, resource selection operations, and / or other operations described elsewhere herein as being performed by the base station 110.

[0037] Devices of the wireless network 100 can communicate using an 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 having a first frequency range (FR1) (which can span from 410 MHz to 7.125 GHz) and / or can communicate using an operating band having a second frequency range (FR2) (which can span from 24.25 GHz to 52.6 GHz). Frequencies between FR1 and FR2 are sometimes referred to as mid-band frequencies. Although a portion of FR1 is greater than 6 GHz, FR1 is often referred to as a "sub-6 GHz" band. Similarly, FR2 is often referred to as a "millimeter wave" band, although it is different from the extremely high frequency (EHF) band (30 GHz–300 GHz) identified as a "millimeter wave" band by the International Telecommunication Union (ITU). Thus, unless otherwise expressly stated, it should be understood that the term "sub-6 GHz," etc., if used herein, can broadly refer to frequencies less than 6 GHz, frequencies within FR1, and / or mid-band frequencies (e.g., greater than 7.125 GHz). Similarly, unless otherwise expressly stated, it should be understood that the term "millimeter wave," etc., if used herein, can broadly refer to frequencies within the EHF band, frequencies within FR2, and / or mid-band frequencies (e.g., less than 24.25 GHz). It is contemplated that the frequencies included in FR1 and FR2 can be modified, and that the techniques described herein are applicable to those modified frequency ranges.

[0038] As pointed out above, Figure 1 is provided as an example. Other examples may differ from those described in relation to Figure 1 Examples described.

[0039] Figure 2is a diagram illustrating an example 200 of a base station 110 in communication with a UE 120 in a wireless network 100 in accordance with various aspects of the present disclosure. The base station 110 may be equipped with T antennas 234a through 234t, and the UE 120 may be equipped with R antennas 252a through 252r, where in general, T ≥ 1 and R ≥ 1.

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

[0041] At UE 120, antennas 252a through 252r may receive downlink signals from base station 110 and / or other base stations and may provide received signals to demodulators (DEMODs) 254a through 254r, respectively. Each demodulator 254 may condition (e.g., filter, amplify, downconvert, and digitize) the received signal to obtain input samples. Each demodulator 254 may further process the input samples (e.g., for OFDM, etc.) to obtain received symbols. A MIMO detector 256 may obtain received symbols from all R demodulators 254a through 254r, perform MIMO detection on the received symbols (if applicable), and provide detected symbols. A receive processor 258 may process (e.g., demodulate and decode) the detected symbols, provide decoded data for UE 120 to a data sink 260, and provide decoded control information and system information to a controller / processor 280. The term "controller / processor" may refer to one or more controllers, one or more processors, or a combination thereof. The channel processor may determine reference signal received power (RSRP), received signal strength indicator (RSSI), reference signal received quality (RSRQ), channel quality indicator (CQI), etc. In some aspects, one or more components of the UE 120 may be included in the housing 284 .

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

[0043] On the uplink, at the UE 120, a transmit processor 264 may receive and process data from a data source 262 and control information from a controller / processor 280 (e.g., for reports including RSRP, RSSI, RSRQ, CQI, etc.). The transmit processor 264 may also generate reference symbols for one or more reference signals. The symbols from the transmit processor 264 may be precoded by a TX MIMO processor 266 (if applicable), further processed by modulators 254a through 254r (e.g., for DFT-s-OFDM, CP-OFDM, etc.), and transmitted to the base station 110. In some aspects, the UE 120 includes a transceiver. The transceiver may include any combination of antennas 252, modulators and / or demodulators 254, a MIMO detector 256, a receive processor 258, a transmit processor 264, and / or a TX MIMO processor 266. The transceiver may be used by a processor (eg, controller / processor 280) and memory 282 to perform aspects of any of the methods described herein, for example, as described with reference to Figure 5-6B Descriptive.

[0044] At base station 110, uplink signals from UE 120 and other UEs may be received by antenna 234, processed by demodulator 232, detected by MIMO detector 236 (if applicable), and further processed by receive processor 238 to obtain decoded data and control information sent by UE 120. Receive processor 238 may provide decoded data to a data sink 239 and decoded control information to controller / processor 240. Base station 110 may include a communication unit 244 and communicate with network controller 130 via communication unit 244. Base station 110 may include a scheduler 246 for scheduling UE 120 for downlink and / or uplink communications. 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 (eg, controller / processor 240) and memory 242 to perform aspects of any of the methods described herein, for example, as described with reference to Figure 5-6B Descriptive.

[0045] The controller / processor 240 of the base station 110, the controller / processor 280 of the UE 120, and / or Figure 2 Any other component in the may perform one or more techniques associated with mapping reference signal resources to virtual panels, as described in greater detail elsewhere herein. For example, the controller / processor 240 of the base station 110, the controller / processor 280 of the UE 120, and / or Figure 2 Any other component in may perform or direct e.g. Figure 7 The process of 700 Figure 8 800 and / or other processes as described herein. Memories 242 and 282 may store data and program codes for base station 110 and UE 120, respectively. In some aspects, memory 242 and / or memory 282 may include a non-transitory computer-readable medium storing one or more instructions (e.g., code, program code, etc.) for wireless communications. For example, the one or more instructions, when executed (e.g., directly, or after compilation, conversion, interpretation, etc.) by one or more processors of base station 110 and / or UE 120, may cause the one or more processors, UE 120, and / or base station 110 to perform or direct, for example, Figure 7 The process of 700 Figure 8 The operations of process 800 and / or other processes as described herein. In some aspects, executing instructions may include running instructions, converting instructions, compiling instructions, interpreting instructions, etc.

[0046] In some aspects, a UE (e.g., UE 120 and / or Figure 9 The apparatus 900 may include: means for determining a plurality of virtual antenna panels, wherein the plurality of virtual antenna panels correspond to a plurality of antenna port groups and are mapped to one or more portions of at least one physical antenna panel; means for mapping a plurality of reference signal resources to the plurality of virtual antenna panels; and / or means for transmitting a signal to a base station (e.g., base station 110 and / or base station 110) using the plurality of reference signal resources based at least in part on the mapping. Figure 10 The apparatus 1000 of the present invention may include means for transmitting a reference signal. Means for the UE to perform the operations described herein may include, for example, antennas 252, demodulators 254, MIMO detectors 256, receive processors 258, transmit processors 264, TX MIMO processors 266, modulators 254, controllers / processors 280, and / or memory 282. In some aspects, the UE may also include means for applying the same spatial transmit filter when transmitting on multiple reference signal resources.

[0047] In some aspects, the UE may also include: a unit for sending two or more gap times to a base station based at least in part on the power state of multiple virtual antenna panels; and a unit for receiving two or more time domain resource configurations corresponding to each of multiple reference signal resources from the base station based at least in part on the two or more gap times.

[0048] Additionally or alternatively, the UE may include means for sending information indicating the power status of the plurality of virtual antenna panels to the base station. Alternatively, the UE may include means for receiving instructions from the base station for reconfiguring the power status of the plurality of virtual antenna panels.

[0049] In some aspects, a base station (e.g., base station 110 and / or Figure 10 The apparatus 1000 may include: a method for sending a message to a UE (eg, UE 120 and / or Figure 9The apparatus 900 of the present invention may include means for transmitting an indication of multiple reference signal resources; means for receiving an indication of multiple virtual antenna panels from a UE, wherein the multiple virtual antenna panels correspond to multiple antenna port groups and are mapped to one or more portions of at least one physical antenna panel; and / or means for receiving reference signals from the UE using multiple reference signal resources based at least in part on the multiple virtual antenna panels. The means for the base station to perform the operations described herein may include, for example, 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, and / or a scheduler 246. In some aspects, the base station may also include: means for transmitting to the UE a spatial domain transmit filter to be used on the multiple reference signal resources.

[0050] In some aspects, the base station may also include: a unit for receiving two or more gap times from the UE based at least in part on the power state of multiple virtual antenna panels; and a unit for sending two or more time domain resource configurations corresponding to each of the multiple reference signal resources to the UE based at least in part on the two or more gap times.

[0051] Additionally or alternatively, the base station may include means for receiving information indicating the power status of the plurality of virtual antenna panels from the UE. Alternatively, the base station may include means for sending instructions to the UE for reconfiguring the power status of the plurality of virtual antenna panels.

[0052] Although Figure 2 The blocks in FIG. 2 are shown as distinct components, but the functionality described above with respect to these blocks may be implemented in a single hardware, software, or combined component, or in various combinations of components. For example, the functionality described with respect to the transmit processor 264, the receive processor 258, and / or the TX MIMO processor 266 may be performed by or under the control of the controller / processor 280.

[0053] As pointed out above, Figure 2 is provided as an example. Other examples may differ from those described in relation to Figure 2 Examples described.

[0054] Figure 3 is a diagram illustrating an example 300 of antenna ports according to various aspects of the present disclosure. Figure 3As shown, a first physical antenna 305-1 may transmit information via a first channel h1, a second physical antenna 305-2 may transmit information via a second channel h2, a third physical antenna 305-3 may transmit information via a third channel h3, and a fourth physical antenna 305-4 may transmit information via a fourth channel h4. Such information may be conveyed via logical antenna ports, which may represent some combination of physical antennas and / or channels. In some cases, UE 120 may not have knowledge of the channels associated with the physical antennas, and UE 120 may operate solely based on knowledge of the channels associated with the antenna ports, as defined below.

[0055] Antenna ports can be defined so that the channel on which a symbol is transmitted on that antenna port can be inferred from the channel on which another symbol is transmitted on the same antenna port. In example 300, the channel associated with antenna port 1 (AP1) is represented as h1-h2+h3+j*h4, where the channel coefficients (e.g., 1, -1, 1, and j in this case) represent weighting factors (e.g., indicating phase and / or gain) applied to each channel. Such weighting factors can be applied to the channels to improve signal power and / or signal quality at one or more receivers. Applying such weighting factors to channel transmissions can be referred to as precoding, and a precoder can refer to a specific set of weighting factors applied to a set of channels.

[0056] Similarly, the channel associated with antenna port 2 (AP2) is represented as h1+j*h3, and the channel associated with antenna port 3 (AP3) is represented as 2*h1-h2+(1+j)*h3+j*h4. In this case, antenna port 3 can be represented as the sum of antenna port 1 and antenna port 2 (e.g., AP3=AP1+AP2) because the sum of the expression for antenna port 1 (h1-h2+h3+j*h4) and the expression for antenna port 2 (h1+j*h3) equals the expression for antenna port 3 (2*h1-h2+(1+j)*h3+j*h4). Antenna port 3 can also be said to be related to antenna ports 1 and 2 (AP1, AP2) via precoder [1, 1] because the expression for antenna port 1 times 1 plus the expression for antenna port 2 times 1 equals the expression for antenna port 3.

[0057] As pointed out above, Figure 3 is provided as an example. Other examples may differ from those described in relation to Figure 3 Examples described.

[0058] Figure 44 is a diagram illustrating an example 400 of a sounding reference signal (SRS) resource set according to various aspects of the present disclosure. Base station 110 may configure UE 120 with one or more SRS resource sets to allocate resources for SRS transmission by UE 120. For example, the configuration for the SRS resource set may be indicated in a radio resource control (RRC) message (e.g., an RRC configuration message, an RRC reconfiguration message, etc.). As indicated by reference numeral 405, the SRS resource set may include one or more resources (e.g., shown as SRS resources), which may include time resources and / or frequency resources (e.g., time slots, symbols, resource blocks, periods of time resources, etc.).

[0059] As indicated by reference numeral 410, an SRS resource may include one or more antenna ports on which an SRS is to be transmitted (e.g., in a time-frequency resource). Thus, the configuration for an SRS resource set may indicate one or more time-frequency resources on which an SRS is to be transmitted, and may indicate antenna ports on which an SRS is to be transmitted in these time-frequency resources. In some aspects, the configuration for an SRS resource set may indicate a use case for the SRS resource set (e.g., in an SRS-SetUse information element). For example, an SRS resource set may have use cases for antenna switching, codebook, non-codebook, beam management, etc.

[0060] The antenna switching SRS resource set may be used to exploit reciprocity between uplink and downlink channels to indicate downlink channel state indication (CSI). For example, when reciprocity exists between the uplink channel and the downlink channel, the base station 110 may use the antenna switching SRS (e.g., an SRS transmitted using resources in the antenna switching SRS resource set) to obtain downlink CSI (e.g., to determine a downlink precoder to be used for communication with the UE 120).

[0061] When base station 110 indicates an uplink precoder to UE 120, a codebook SRS resource set may be used to indicate uplink CSI. For example, when base station 110 is configured to indicate an uplink precoder to UE 120 (e.g., using a precoder codebook), base station 110 may use a codebook SRS (e.g., an SRS sent using resources in a codebook SRS resource set) to obtain uplink CSI (e.g., to determine an uplink precoder to indicate to UE 120 and to be used by UE 120 for communicating with base station 110). In some aspects, at least for codebook SRS, a virtual port (e.g., a combination of two or more antenna ports) with maximum transmit power may be supported.

[0062] When UE 120 selects an uplink precoder (e.g., instead of base station 110 indicating an uplink precoder to be used by UE 120), a non-codebook SRS resource set may be used to indicate uplink CSI. For example, when UE 120 is configured to select an uplink precoder, base station 110 may use a non-codebook SRS (e.g., an SRS transmitted using resources in a non-codebook SRS resource set) to obtain uplink CSI. In this case, the non-codebook SRS may be precoded using a precoder selected by UE 120 (e.g., the precoder may be indicated to base station 110). A beam-managed SRS resource set may be used to indicate CSI for mmWave communications.

[0063] SRS resources can be configured as periodic, semi-persistent (sometimes referred to as semi-persistent scheduling (SPS)), or aperiodic. Periodic SRS resources can be configured via a configuration message indicating the period of the SRS resources (e.g., a slot-level period, where the SRS resources occur every Y slots) and the slot offset. In some cases, periodic SRS resources may always be activated and may not be dynamically activated or deactivated. Semi-persistent SRS resources may also be configured via a configuration message indicating the period and slot offset for semi-persistent SRS resources, and may be dynamically activated and deactivated (e.g., using DCI or a medium access control (MAC) control element (CE) (MAC-CE)). Aperiodic SRS resources may be dynamically triggered, for example, via DCI (e.g., UE-specific DCI or group-common DCI) or MAC-CE.

[0064] In some aspects, the UE 120 may be configured with a mapping between SRS ports (e.g., antenna ports) and corresponding SRS resources. The UE 120 may use the SRS ports indicated in the configuration to transmit SRS on a particular SRS resource. In some aspects, the SRS resource may span N adjacent symbols within a time slot (e.g., where N is equal to 1, 2, or 4). The UE 120 may be configured with X SRS ports (e.g., where X ≤ 4). In some aspects, each of the X SRS ports may be mapped to a corresponding symbol of the SRS resource and used to transmit the SRS in that symbol.

[0065] like Figure 4As shown, in some aspects, different SRS resource sets (e.g., having different use cases) indicated to UE 120 may overlap (e.g., in time, in frequency, etc., such as in the same time slot). For example, as shown by reference numeral 415, a first SRS resource set (e.g., shown as SRS resource set 1) is shown as having an antenna switching use case. As shown, this example antenna switching SRS resource set includes a first SRS resource (shown as SRS resource A) and a second SRS resource (shown as SRS resource B). Therefore, antenna port 0 and antenna port 1 can be used to transmit antenna switching SRS in SRS resource A (e.g., a first time-frequency resource), and antenna port 2 and antenna port 3 can be used to transmit antenna switching SRS in SRS resource B (e.g., a second time-frequency resource).

[0066] As indicated by reference numeral 420, a second SRS resource set (e.g., shown as SRS resource set 2) may be a codebook use case. As shown, this example codebook SRS resource set includes only the first SRS resource (shown as SRS resource A). Therefore, antenna port 0 and antenna port 1 may be used to transmit the codebook SRS in SRS resource A (e.g., the first time-frequency resource). In this case, UE 120 may not use antenna port 2 and antenna port 3 to transmit the codebook SRS in SRS resource B (e.g., the second time-frequency resource).

[0067] In some cases, the UE may use antenna switching for more than four antennas. For example, the UE may allow 1T6R (one transmit chain and six receive chains), 2T6R, 4T6R, or other configurations with more than four receive chains. Thus, the UE may include multiple antenna panels, each of which includes multiple antenna elements. For example, the UE may include three panels, each of which has N antenna elements (e.g., cross-polarization elements and / or other similar antenna elements).

[0068] To obtain downlink CSI, the UE should transmit SRS across the antenna ports of the panel. However, the UE may not want to explicitly indicate to the base station how many antenna panels are included in the UE. In addition, when the target antenna panel is idle (or otherwise not fully powered) compared to when the target antenna panel is active, the UE will use additional time during antenna switching. Therefore, when UE 120 requires a long gap time between transmissions, the base station will not be able to measure the correct SRS resources in the time domain.

[0069] The techniques and apparatus described herein allow a UE (e.g., UE 120) to map physical antenna panels to virtual antenna panels. Thus, UE 120 can communicate with a base station (e.g., base station 110) to configure SRS transmissions without explicitly indicating how many antenna panels are included in UE 120. Furthermore, base station 110 can configure different gap times across SRS resource sets to allow UE 120 to perform antenna switching when one or more target antenna panels are idle (or otherwise not fully powered). Thus, when UE 120 requires a longer gap time between transmissions, base station 110 can measure the correct SRS resources in the time domain.

[0070] As pointed out above, Figure 4 is provided as an example. Other examples may differ from those described in relation to Figure 4 Examples described.

[0071] Figure 5 is a diagram illustrating an example 500 associated with a virtual antenna panel according to various aspects of the present disclosure. Figure 5 As shown, example 500 includes a UE (e.g., UE 120) having at least two physical antenna panels (e.g., physical panel 505, physical panel 510, and / or other physical panels). Although the following description will focus on UE 120 having two physical antenna panels, the description is equally applicable to UE 120 having one physical antenna panel or additional physical antenna panels (e.g., three panels, four panels, etc.).

[0072] like Figure 5 As further shown, UE 120 may determine a plurality of virtual antenna panels (e.g., virtual panel 515, virtual panel 520, virtual panel 525, virtual panel 530, and / or other virtual panels) that correspond to a plurality of antenna port groups (e.g., as described above in conjunction with Figure 3) and are mapped to one or more portions of at least one physical antenna panel (e.g., physical panel 505, physical panel 510, and / or other physical panels). In example 500, virtual panel 515 includes a first antenna port group on physical panel 505, and virtual panel 520 includes a second antenna port group on physical panel 505. Similarly, virtual panel 525 includes a first antenna port group on physical panel 510, and virtual panel 530 includes a second antenna port group on physical panel 510. Although the following description will focus on virtual panels that include portions of physical panels, the description is equally applicable to virtual panels that include multiple physical panels (e.g., one virtual panel that includes all or a portion of physical panel 505 and / or all or a portion of physical panel 510) and / or virtual panels that include complete physical panels (e.g., one virtual panel that is mapped to physical panel 505 and / or one virtual panel that is mapped to physical panel 510).

[0073] In some aspects, antenna port groups are configured for simultaneous reception but not for simultaneous transmission. For example, UE 120 in example 500 may be configured for 1T4R such that the antenna port groups included in virtual panel 515, virtual panel 520, virtual panel 525, and virtual panel 530 may all receive simultaneously but may only transmit individually. Thus, the reference signals in the reference signal resource set (e.g., as described above in conjunction with Figure 4 The SRS in the described SRS resource set can be time-duplexed across virtual panels.

[0074] In some aspects, UE 120 may send, and base station 110 may receive, an indication of a plurality of virtual antenna panels. For example, UE 120 may send (e.g., using RRC signaling or other similar signaling) a UE capabilities message (e.g., as defined in 3GPP specifications or other technical standards) or other similar message to base station 110. The UE capabilities message may indicate the number of virtual antenna panels included in UE 120.

[0075] In some aspects, base station 110 may send and UE 120 may receive an indication of multiple reference signal resources. For example, base station 110 may indicate an SRS resource set, as described above in conjunction with Figure 4 As described above, UE 120 may map multiple reference signal resources to multiple virtual antenna panels. In some aspects, UE 120 may explicitly associate each resource (e.g., each SRS resource) to a corresponding virtual panel. Alternatively, UE 120 may associate each resource (e.g., each SRS resource) to a corresponding antenna port group, such that the resource is implicitly mapped to the virtual panel that includes the antenna port group.

[0076] In some aspects, base station 110 may transmit, and UE 120 may receive, a spatial transmission filter to be used on multiple reference signal resources. For example, base station 110 may transmit a transmission configuration indicator (TCI) state (e.g., as defined in a 3GPP specification or other technical standard) or other similar data structure defining a spatial filter to UE 120. Thus, when transmitting on multiple reference signal resources, UE 120 may apply the spatial transmission filter. In some aspects, UE 120 may apply the same spatial transmission filter across multiple reference signal resources (e.g., across all SRS resources in an SRS resource set).

[0077] UE 120 may transmit a reference signal to a base station using multiple reference signal resources based at least in part on the mapping. For example, UE 120 may transmit an SRS using an antenna port group included in a virtual antenna panel (e.g., virtual panel 515, virtual panel 520, virtual panel 525, virtual panel 530, and / or other virtual panels). In some aspects, as described below in conjunction with Figure 6A and 6B As described, the SRS may be time duplexed (eg, time division multiplexed (TDM) or otherwise divided in time).

[0078] By using the combination Figure 5 With the described techniques, UE 120 can coordinate with base station 110 to perform antenna switching when transmitting an SRS without revealing the number of physical antenna panels included in UE 120 to base station 110. Additionally, UE 120 can group antenna ports that can perform simultaneous transmissions into a single virtual panel, regardless of whether the ports are included in the same physical panel. Thus, when UE 120 includes capabilities for multiple active antenna panels, UE 120 can configure antenna port groups for higher quality transmission and communication than if UE 120 were to use only physical antenna panels to group antenna ports.

[0079] As pointed out above, Figure 5 is provided as an example. Other examples may differ from those described in relation to Figure 5 Examples described.

[0080] Figure 6A and 6B 6 are diagrams illustrating examples 600 and 650, respectively, associated with flexible gap times between reference signal resources according to various aspects of the present disclosure. Figure 6A As shown, example 600 includes an SRS resource set having four SRS signals. Figure 6BAs shown, example 650 includes an SRS resource set having four SRS signals. Although the following description will focus on a UE (e.g., UE 120) transmitting four SRS signals, the description is equally applicable to a UE 120 transmitting fewer SRS signals (e.g., three signals, two signals, etc.) or additional SRS signals (e.g., five signals, six signals, etc.).

[0081] In some aspects, as described above in combination with Figure 5 As described above, UE 120 may map multiple reference signal resources (eg, SRS resources from an SRS resource set) to multiple virtual antenna panels. Figure 6A As shown, UE 120 may select reference signals sent on multiple reference signal resources (e.g., Figure 6A The SRS signal shown) is time duplexed (e.g., TDM or otherwise divided in time).

[0082] In some aspects, such as Figure 6A As further shown, one or more gap times within the time duplex can be based at least in part on the power state of a target antenna panel in the plurality of virtual antenna panels. In example 600, SRS#1 and SRS#2 can be assigned to active virtual antenna panels, while SRS#3 and SRS#4 can be assigned to idle or otherwise not fully powered virtual antenna panels. Thus, based at least in part on the time for UE 120 to fully power the virtual antenna panels to which SRS#3 and SRS#4 are assigned, the gap time between SRS#2 and SRS#3 can be longer than the gap time between SRS#1 and SRS#2 and between SRS#3 and SRS#4.

[0083] Additionally or alternatively, one or more gap times within the time duplex can be based at least in part on a mapping between one or more portions of at least one physical antenna panel and a plurality of virtual antenna panels. In example 600, SRS#1 and SRS#2 can be assigned to a virtual antenna panel located on a first physical antenna panel, and SRS#3 and SRS#4 can be assigned to a virtual antenna panel located on a second physical antenna panel. Thus, based at least in part on UE 120 taking a longer time to fully power different physical antenna panels than to fully power different portions of the same physical antenna panel, the gap time between SRS#2 and SRS#3 can be longer than the gap time between SRS#1 and SRS#2 and between SRS#3 and SRS#4.

[0084] In some aspects, the UE 120 may use more than two gap times. For example, the UE 120 may use the longest gap time (e.g., 100 ms, 50 ms, etc.) between two SRSs mapped to two virtual antenna panels included in different physical antenna panels and when the target panel in the two virtual antenna panels is idle or otherwise not fully powered; use a medium gap time (e.g., 40 ms, 20 ms, etc.) between two SRSs mapped to two virtual antenna panels included in the same physical antenna panel and when the target panel in the two virtual antenna panels is idle or otherwise not fully powered; and use the shortest gap time (e.g., 2 ms, 1 ms, etc.) between two SRSs mapped to two virtual antenna panels included in the same physical antenna panel and when the target panel in the two virtual antenna panels is active. In another example, UE 120 may perform the following operations: use the longest gap time (e.g., 100ms, 50ms, etc.) between two SRSs mapped to two virtual antenna panels included in different physical antenna panels and when the target panels in the two virtual antenna panels are in a deep sleep state; use a medium gap time (e.g., 40ms, 20ms, etc.) between two SRSs mapped to two virtual antenna panels included in different physical antenna panels and when the target panels in the two virtual antenna panels are in a light sleep state, and also use a medium gap time (e.g., 40ms, 20ms, etc.) between two SRSs mapped to two virtual antenna panels included in the same physical antenna panel and when the target panels in the two virtual antenna panels are in a deep sleep state; and use the shortest gap time (e.g., 2ms, 1ms, etc.) between two SRSs mapped to two virtual antenna panels included in the same physical antenna panel and when the target panels in the two virtual antenna panels are active or in a light sleep state. Additional examples may include four slot times, five slot times, etc. based at least in part on a power state of the virtual antenna panel and / or a mapping between one or more portions of at least one physical antenna panel and the virtual antenna panel.

[0085] like Figure 6BAs shown, one or more gap times may be the same when a virtual antenna panel is active and / or when the virtual antenna panels are located on the same physical antenna panel. Thus, example 650 includes the same gap time. In some aspects, UE 120 may use the same gap time for different scenarios. For example, UE 120 may use a gap time between two SRSs mapped to two virtual antenna panels included in different physical antenna panels and when a target panel in the two virtual antenna panels is active. Additionally, UE 120 may use the same gap time between two SRSs mapped to two virtual antenna panels included in the same physical antenna panel and when a target panel in the two virtual antenna panels is idle or otherwise not fully powered.

[0086] In some aspects, UE 120 may send two or more gap times to the base station based at least in part on the power status of the plurality of virtual antenna panels. For example, as described above, UE 120 may report the plurality of gap times based at least in part on the power status of the virtual antenna panels and / or a mapping between one or more portions of at least one physical antenna panel and the virtual antenna panels. UE 120 may indicate the two or more gap times to base station 110 using RRC signaling, MAC-CE, and / or other messaging.

[0087] Thus, base station 110 may transmit two or more time domain resource configurations corresponding to each of a plurality of reference signal resources based at least in part on two or more gap times, and UE 120 may receive two or more time domain resource configurations corresponding to each of a plurality of reference signal resources based at least in part on the two or more gap times. For example, base station 110 may configure different time slot offsets, starting positions, and / or other timing parameters based at least in part on the two or more gap times. In some aspects, base station 110 may transmit an SRS-ResourceSet data structure (e.g., as defined in a 3GPP specification or other technical standard) or other similar data structure indicating the two or more time domain resource configurations to UE 120 (e.g., using RRC signaling or other similar signaling).

[0088] Thus, UE 120 may select from two or more time-domain resource configurations when transmitting a reference signal (e.g., SRS) based at least in part on the power status of the multiple virtual antenna panels (e.g., as described above). In some aspects, base station 110 may monitor all resources indicated by the two or more time-domain resource configurations so that the power status may be inferred based at least in part on which resources UE 120 uses to transmit. Additionally, in some aspects, UE 120 may additionally transmit information indicating the power status of the multiple virtual antenna panels, and base station 110 may additionally receive information indicating the power status of the multiple virtual antenna panels. For example, UE 120 may send a MAC-CE and / or other message to base station 110 to indicate the power status. Thus, base station 110 may monitor only a portion of the resources indicated by the two or more time-domain resource configurations based at least in part on the information indicating the power status of the multiple virtual antenna panels.

[0089] In some aspects, the MAC-CE and / or other message may also indicate a gap time associated with powering on the plurality of virtual antenna panels. Thus, the base station 110 may determine two or more time-domain resource configurations based at least in part on the indicated gap time. Alternatively, the base station 110 may send a time-domain resource configuration corresponding to each of the plurality of reference signal resources based at least in part on the information indicating the power state of the plurality of virtual antenna panels and the indicated gap time, and the UE 120 may receive a time-domain resource configuration corresponding to each of the plurality of reference signal resources based at least in part on the information indicating the power state of the plurality of virtual antenna panels and the indicated gap time.

[0090] Alternatively, the base station 110 may send an instruction for reconfiguring the power states of the plurality of virtual antenna panels, and the UE 120 may receive the instruction for reconfiguring the power states of the plurality of virtual antenna panels. For example, the base station 110 may send a command for activating one or more virtual antenna panels of the UE 120 and / or deactivating one or more virtual antenna panels of the UE 120 (e.g., using RRC signaling or other similar signaling). Thus, the base station 110 may monitor only a portion of the resources indicated by the two or more time-domain resource configurations based at least in part on the instruction for reconfiguring the power states of the plurality of virtual antenna panels. Alternatively, the base station 110 may send a time-domain resource configuration corresponding to each of the plurality of reference signal resources based at least in part on the instruction for reconfiguring the power states of the plurality of virtual antenna panels, and the UE 120 may receive a time-domain resource configuration corresponding to each of the plurality of reference signal resources based at least in part on the instruction for reconfiguring the power states of the plurality of virtual antenna panels.

[0091] UE 120 may use multiple reference signal resources based at least in part on the time domain resource configuration to transmit a reference signal to base station 110. For example, UE 120 may transmit an SRS using a group of antenna ports included in a virtual antenna panel, and the SRS may be time duplexed (e.g., TDM or otherwise divided in time), as described above.

[0092] By using the combination Figure 6A and 6B With the described techniques, UE 120 can coordinate with base station 110 to perform antenna switching when transmitting SRS. In addition, UE 120 can indicate to base station 110 different gap times between SRSs based at least in part on the power state of the virtual antenna panel. As a result, base station 110 can accurately monitor SRSs from UE 120, thereby improving communication quality and reliability (e.g., when base station 110 configures one or more downlink channels based at least in part on measuring SRSs).

[0093] As pointed out above, Figure 6A and 6B is provided as an example. Other examples may differ from those described in relation to Figure 6A and 6B Described example

[0094] Figure 7 7 is a diagram illustrating an example process 700 performed, for example, by a UE, according to various aspects of the present disclosure. Example process 700 is a diagram in which a UE (e.g., UE 120 and / or Figure 9 An example of an apparatus 900) performing operations associated with mapping reference signal resources to a virtual panel.

[0095] like Figure 7 As shown, in some aspects, process 700 may include determining a plurality of virtual antenna panels (block 710). For example, a UE (e.g., using Figure 9 The determining component 908 depicted in FIG. 10 can determine a plurality of virtual antenna panels, as described above. In some aspects, the plurality of virtual antenna panels correspond to a plurality of antenna port groups and are mapped to one or more portions of at least one physical antenna panel.

[0096] like Figure 7 As further shown, in some aspects, process 700 may include mapping multiple reference signal resources to multiple virtual antenna panels (block 720). For example, the UE (e.g., using determining component 908) may map multiple reference signal resources to multiple virtual antenna panels, as described above.

[0097] like Figure 7As further shown, in some aspects, process 700 may include: using multiple reference signal resources based at least in part on the mapping to a base station (e.g., base station 110 and / or Figure 10 1000) sends a reference signal (block 730). For example, a UE (e.g., using Figure 9 The transmitting component 904 depicted in FIG can transmit a reference signal to the base station using multiple reference signal resources based at least in part on the mapping, as described above.

[0098] Process 700 may include additional aspects, such as any single aspect or any combination of aspects described below and / or in conjunction with one or more other processes described elsewhere herein.

[0099] In a first aspect, groups of antenna ports are configured for simultaneous reception but not for simultaneous transmission.

[0100] In a second aspect, alone or in combination with the first aspect, process 700 further includes applying the same spatial transmit filter (eg, using transmitting component 904) when transmitting on multiple reference signal resources.

[0101] In a third aspect, alone or in combination with one or more of the first and second aspects, process 700 further includes time duplexing (eg, using transmitting component 904) a reference signal transmitted on the plurality of reference signal resources.

[0102] In a fourth aspect, alone or in combination with one or more of the first to third aspects, one or more gap times within the time duplex are based at least in part on a power state of a target virtual antenna panel of the plurality of virtual antenna panels.

[0103] In a fifth aspect, alone or in combination with one or more of aspects 1 to 4, one or more gap times within the time duplex are further based at least in part on a mapping between one or more portions of at least one physical antenna panel and a plurality of virtual antenna panels.

[0104] In a sixth aspect, either alone or in combination with one or more of aspects 1 to 5, process 700 further comprises sending two or more gap times to a base station (e.g., using a sending component 904) based at least in part on the power states of a plurality of virtual antenna panels.

[0105] In a seventh aspect, alone or in combination with one or more of the first to sixth aspects, process 700 further comprises: at least in part based on two or more gap times (e.g., using Figure 9The receiving component 902 depicted in the figure receives two or more time domain resource configurations corresponding to each of a plurality of reference signal resources from a base station, and the reference signal is sent on the plurality of reference signal resources based at least in part on the power state of the plurality of virtual antenna panels.

[0106] In an eighth aspect, alone or in combination with one or more of the first to seventh aspects, process 700 further comprises sending information indicating power status of the plurality of virtual antenna panels to a base station (eg, using transmitting component 904).

[0107] In a ninth aspect, alone or in combination with one or more of the first to eighth aspects, the information further indicates an intermittent time associated with energizing the plurality of virtual antenna panels.

[0108] In a tenth aspect, alone or in combination with one or more of aspects 1 to 9, process 700 further comprises receiving (e.g., using receiving component 902) instructions from a base station for reconfiguring power states of the plurality of virtual antenna panels.

[0109] Although Figure 7 Example blocks of process 700 are shown, but in some aspects process 700 may include Figure 7 The blocks may be additional blocks, fewer blocks, different blocks, or blocks arranged in a different manner than those depicted in process 700. Additionally or alternatively, two or more blocks of the blocks of process 700 may be executed in parallel.

[0110] Figure 8 8 is a diagram illustrating an example process 800 performed, for example, by a base station, according to various aspects of the present disclosure. Example process 800 is a diagram in which a base station (e.g., base station 110 and / or Figure 10 An example of an apparatus 1000) performing operations associated with receiving a reference signal based at least in part on a virtual panel.

[0111] like Figure 8 As shown, in some aspects, process 800 may include: sending a message to a UE (e.g., UE 120 and / or Figure 9 The apparatus 900 of FIG. 800 sends an indication of a plurality of reference signal resources (block 810). For example, a base station (e.g., using Figure 10 The transmitting component 1004 depicted in FIG may send an indication of multiple reference signal resources to the UE, as described above.

[0112] like Figure 8 As further shown, in some aspects, process 800 may include receiving an indication of a plurality of virtual antenna panels from a UE (block 820). For example, a base station (e.g., using Figure 10The receiving component 1002 depicted in FIG may receive an indication of a plurality of virtual antenna panels from a UE. In some aspects, the plurality of virtual antenna panels correspond to a plurality of antenna port groups and are mapped to one or more portions of at least one physical antenna panel.

[0113] like Figure 8 As further shown, in some aspects, process 800 may include receiving a reference signal from a UE using a plurality of reference signal resources based at least in part on the plurality of virtual antenna panels (block 830). For example, a base station (e.g., using receiving component 1002) may receive a reference signal from a UE using a plurality of reference signal resources based at least in part on the plurality of virtual antenna panels, as described above.

[0114] Process 800 may include additional aspects, such as any single aspect or any combination of aspects described below and / or in conjunction with one or more other processes described elsewhere herein.

[0115] In the first aspect, process 800 also includes sending (eg, using transmitting component 1004) to the UE a spatial transmission filter to be used on the plurality of reference signal resources.

[0116] In a second aspect, alone or in combination with the first aspect, the reference signals received on the plurality of reference signal resources are time duplexed.

[0117] In a third aspect, alone or in combination with one or more of the first and second aspects, one or more gap times within the time duplex are based at least in part on a power state of a target virtual antenna panel of the plurality of virtual antenna panels.

[0118] In a fourth aspect, alone or in combination with one or more of the first to third aspects, one or more gap times within the time duplex are further based at least in part on a mapping between one or more portions of at least one physical antenna panel and a plurality of virtual antenna panels.

[0119] In a fifth aspect, alone or in combination with one or more of aspects 1 to 4, process 800 further comprises receiving (e.g., using receiving component 1002) two or more gap times based at least in part on power states of multiple virtual antenna panels from the UE.

[0120] In a sixth aspect, alone or in combination with one or more of aspects 1 to 5, process 800 further comprises sending two or more time domain resource configurations corresponding to each of a plurality of reference signal resources to the UE based at least in part on two or more gap times (e.g., using transmitting component 1004), and the reference signal is received on the plurality of reference signal resources based at least in part on the power state of the plurality of virtual antenna panels.

[0121] In a seventh aspect, alone or in combination with one or more of the first to sixth aspects, the process 800 further comprises receiving (eg, using the receiving component 1002) information indicating power status of the plurality of virtual antenna panels from the UE.

[0122] In an eighth aspect, alone or in combination with one or more of the first to seventh aspects, the information further indicates an intermittent time associated with energizing the plurality of virtual antenna panels.

[0123] In a ninth aspect, alone or in combination with one or more of aspects 1 to 8, process 800 further comprises sending (eg, using transmitting component 1004) instructions to the UE for reconfiguring power states of the plurality of virtual antenna panels.

[0124] Although Figure 8 Example blocks of process 800 are shown, but in some aspects process 800 may include Figure 8 The blocks may include additional blocks, fewer blocks, different blocks, or blocks arranged in a different manner than those depicted in process 800. Additionally or alternatively, two or more blocks of the blocks of process 800 may be executed in parallel.

[0125] Figure 9 900 is a block diagram of an example apparatus 900 for wireless communication. Apparatus 900 may be a UE, or a UE may include apparatus 900. In some aspects, apparatus 900 includes a receiving component 902 and a transmitting component 904, which may communicate with each other (e.g., via one or more buses and / or one or more other components). As shown, apparatus 900 may communicate with another apparatus 906 (such as a UE, a base station, or another wireless communication device) using receiving component 902 and transmitting component 904. As further shown, apparatus 900 may include a determining component 908, among other examples.

[0126] In some aspects, the apparatus 900 may be configured to perform the Figure 5-6B Additionally or alternatively, the apparatus 900 may be configured to perform one or more of the processes described herein, such as Figure 7 In some aspects, the process 700 or a combination thereof. Figure 9 The apparatus 900 and / or one or more components shown in FIG. 1 may include the above-mentioned apparatus 900 and / or one or more components ... Figure 2 Additionally or alternatively, in Figure 9 One or more components shown in the above may be combined Figure 2 In addition or alternatively, one or more components in a set of components may be implemented at least in part as software stored in a memory. For example, a component (or a portion of a component) may be implemented as instructions or 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.

[0127] The receiving component 902 may receive communications, such as reference signals, control information, data communications, or a combination thereof, from the apparatus 906. The receiving component 902 may provide the received communications to one or more other components of the apparatus 900. In some aspects, the receiving component 902 may perform signal processing (e.g., filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, demapping, equalization, interference cancellation, or decoding, among other examples) on the received communications and may provide the processed signals to one or more other components of the apparatus 906. In some aspects, the receiving component 902 may include the processing described above in conjunction with Figure 2 One or more antennas, demodulators, MIMO detectors, receive processors, controllers / processors, memories, or combinations thereof of a described UE.

[0128] The transmitting component 904 may transmit communications, such as reference signals, control information, data communications, or a combination thereof, to the apparatus 906. In some aspects, one or more other components of the apparatus 906 may generate communications and may provide the generated communications to the transmitting component 904 for transmission to the apparatus 906. In some aspects, the transmitting component 904 may perform signal processing (e.g., filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding, among other examples) on the generated communications and may transmit the processed signals to the apparatus 906. In some aspects, the transmitting component 904 may include a method in combination with the above. Figure 2 One or more antennas, modulators, transmit MIMO processors, transmit processors, controllers / processors, memories, or combinations thereof of the described UE. In some aspects, the transmit component 904 can be co-located with the receive component 902 in a transceiver.

[0129] In some aspects, determining component 908 may determine a plurality of virtual antenna panels corresponding to a plurality of antenna port groups and mapped to one or more portions of at least one physical antenna panel. In some aspects, determining component 908 may include the above in combination with Figure 2

[0066] The transmit MIMO processor, transmit processor, controller / processor, memory, or combination thereof of the UE described herein may be configured to determine the plurality of reference signal resources to be mapped to the plurality of virtual antenna panels. Accordingly, the transmitting component 904 may transmit a reference signal to the apparatus 906 using the plurality of reference signal resources based at least in part on the mapping. In some aspects, the transmitting component 904 may apply the same spatial transmission filter when transmitting on the plurality of reference signal resources.

[0130] In some aspects, transmitting component 904 can additionally transmit two or more gap times based at least in part on the power states of the plurality of virtual antenna panels to device 906. Furthermore, receiving component 902 can receive two or more time-domain resource configurations corresponding to each of the plurality of reference signal resources from device 906 based at least in part on the two or more gap times. Thus, transmitting component 904 can transmit reference signals on the plurality of reference signal resources based at least in part on the power states of the plurality of virtual antenna panels.

[0131] Additionally or alternatively, transmitting component 904 can transmit information indicative of the power state of the plurality of virtual antenna panels to device 906. Alternatively, receiving component 902 can receive instructions from device 906 for reconfiguring the power state of the plurality of virtual antenna panels.

[0132] exist Figure 9 The number and arrangement of components shown in are provided as examples. In practice, there may be Figure 9 Components may be additional, fewer, different, or arranged differently than those shown in FIG. Figure 9 Two or more components shown in may be implemented within a single component, or in Figure 9 A single component shown in may be implemented as multiple distributed components. Additionally or alternatively, Figure 9 A set (one or more) of components shown in the can perform the operations described by Figure 9 One or more functions performed by another group of components shown in FIG.

[0133] Figure 101 is a block diagram of an example apparatus 1000 for wireless communication. Apparatus 1000 may be a base station, or a base station may include apparatus 1000. In some aspects, apparatus 1000 includes a receiving component 1002 and a transmitting component 1004, which may communicate with each other (e.g., via one or more buses and / or one or more other components). As shown, apparatus 1000 may communicate with another apparatus 1006 (such as a UE, a base station, or another wireless communication device) using receiving component 1002 and transmitting component 1004. As further shown, apparatus 1000 may include a measuring component 1008, among other examples.

[0134] In some aspects, the apparatus 1000 may be configured to perform the Figure 5-6B Additionally or alternatively, the apparatus 1000 may be configured to perform one or more of the processes described herein, such as Figure 8 In some aspects, the process 800 of Figure 10 The apparatus 1000 and / or one or more components shown in FIG. 1 may include the above-mentioned apparatus 1000 and / or one or more components ... Figure 2 Additionally or alternatively, in Figure 10 One or more components shown in the above may be combined Figure 2 In addition or alternatively, one or more components in a set of components may be implemented at least in part as software stored in a memory. For example, a component (or a portion of a component) may be implemented as instructions or 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.

[0135] The receiving component 1002 may receive communications, such as reference signals, control information, data communications, or a combination thereof, from the apparatus 1006. The receiving component 1002 may provide the received communications to one or more other components of the apparatus 1000. In some aspects, the receiving component 1002 may perform signal processing (e.g., filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, demapping, equalization, interference cancellation, or decoding, among other examples) on the received communications and may provide the processed signals to one or more other components of the apparatus 1006. In some aspects, the receiving component 1002 may include the processing described above in conjunction with Figure 2 One or more antennas, demodulators, MIMO detectors, receive processors, controllers / processors, memories, or combinations thereof of a base station are described.

[0136] The transmitting component 1004 may transmit communications, such as reference signals, control information, data communications, or a combination thereof, to the apparatus 1006. In some aspects, one or more other components of the apparatus 1006 may generate communications and may provide the generated communications to the transmitting component 1004 for transmission to the apparatus 1006. In some aspects, the transmitting component 1004 may perform signal processing (e.g., filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding, among other examples) on the generated communications and may transmit the processed signals to the apparatus 1006. In some aspects, the transmitting component 1004 may include a method in combination with the above. Figure 2 One or more antennas, modulators, transmit MIMO processors, transmit processors, controllers / processors, memories, or combinations thereof of the described base stations. In some aspects, the transmit component 1004 can be co-located with the receive component 1002 in a transceiver.

[0137] In some aspects, the transmitting component 1004 can transmit an indication of a plurality of reference signal resources to the apparatus 1006. In addition, the receiving component 1002 can receive an indication of a plurality of virtual antenna panels from the apparatus 1006, the plurality of virtual antenna panels corresponding to the plurality of antenna port groups and mapped to one or more portions of the at least one physical antenna panel. Thus, the receiving component 1002 can receive a reference signal from the apparatus 1006 using the plurality of reference signal resources based at least in part on the plurality of virtual antenna panels. The measuring component 1008 can measure the reference signal. In some aspects, the measuring component 1008 can include the above-described combination of Figure 2 One or more antennas, demodulators, MIMO detectors, receive processors, controllers / processors, memories, or combinations thereof of the described base stations. In some aspects, transmitting component 1004 may transmit spatial domain transmit filters to apparatus 1006 to be used on the plurality of reference signal resources.

[0138] In some aspects, receiving component 1002 can receive two or more gap times based at least in part on the power states of the plurality of virtual antenna panels from apparatus 1006. Accordingly, transmitting component 1004 can transmit two or more time-domain resource configurations corresponding to each of the plurality of reference signal resources based at least in part on the two or more gap times to apparatus 1006. Receiving component 1002 can receive reference signals on the plurality of reference signal resources based at least in part on the power states of the plurality of virtual antenna panels.

[0139] Additionally or alternatively, receiving component 1002 can receive information indicative of a power state of the plurality of virtual antenna panels from apparatus 1006. Alternatively, transmitting component 1004 can transmit instructions to apparatus 1006 for reconfiguring the power state of the plurality of virtual antenna panels.

[0140] exist Figure 10 The number and arrangement of components shown in are provided as examples. In practice, there may be Figure 10 Components may be additional, fewer, different, or arranged differently than those shown in FIG. Figure 10 Two or more components shown in may be implemented within a single component, or in Figure 10 A single component shown in may be implemented as multiple distributed components. Additionally or alternatively, Figure 10 A set (one or more) of components shown in the can perform the operations described by Figure 10 One or more functions performed by another group of components shown in FIG.

[0141] The foregoing disclosure provides illustration and description, but is not intended to be exhaustive or to limit the aspects to the precise forms disclosed. Modifications and variations are possible in light of the above disclosure or may be acquired from practice of the various aspects.

[0142] As used herein, the term "component" is intended to be broadly interpreted as hardware, firmware, and / or a combination of hardware and software. As used herein, a processor is implemented using hardware, firmware, and / or a combination of hardware and software. It will be apparent that the systems and / or methods described herein can be implemented using different forms of hardware, firmware, and / or a combination of hardware and software. The actual specialized control hardware or software code used to implement these systems and / or methods is not limiting in any way. Therefore, the operation and behavior of the systems and / or methods are described herein without reference to specific software code, it being understood that software and hardware can be designed to implement the systems and / or methods based, at least in part, on the description herein.

[0143] As used herein, satisfying a threshold may refer to a value being greater than a threshold, greater than or equal to a threshold, less than a threshold, less than or equal to a threshold, equal to a threshold, not equal to a threshold, etc., depending on the context.

[0144] Even if a specific combination of features is recorded in the claims and / or disclosed in the specification, these combinations are not intended to limit the disclosure of each aspect. In fact, many of these features can be combined in a manner not specifically recorded in the claims and / or specifically disclosed in the specification. Although each dependent claim listed below can only directly depend on one claim, the disclosure of each aspect includes the combination of each dependent claim and each other claim in the claim set. The phrase "at least one of" the list of items refers to any combination of those items, including single members. For example, "at least one of a, b or c" is intended to cover a, b, c, ab, ac, bc and abc, and any combination of multiple identical elements (e.g., aa, aaa, aab, aac, abb, acc, bb, bbb, bbc, cc and ccc or any other sorting of a, b and c).

[0145] None of the elements, actions or instructions used herein should be interpreted as key or necessary, unless clearly described as such. In addition, as used herein, the articles "a" and "an" are intended to include one or more projects, and can be used interchangeably with "one or more". In addition, as used herein, the article "the" is intended to include one or more projects quoted in conjunction with the article "the", and can be used interchangeably with "one or more". In addition, as used herein, the terms "set" and "group" are intended to include one or more projects (for example, related projects, unrelated projects, the combination of related projects and unrelated projects, etc.), and can be used interchangeably with "one or more". In the case of only expecting a project, phrase "only one" or similar language is used. In addition, as used herein, the terms "have (has)", "have (have)", "have (having)" etc. are intended to be open terms. In addition, unless otherwise clearly stated, phrase "based on" is intended to mean "at least partially based on". Furthermore, as used herein, the term "or" when used in a series is intended to be inclusive and, unless expressly stated otherwise (e.g., if used in conjunction with "either" or "only one of"), can be used interchangeably with "and / or."

Claims

1. A method of wireless communication performed by a user equipment (UE), comprising: determining a plurality of virtual antenna panels, wherein the plurality of virtual antenna panels correspond to a plurality of antenna port groups and are mapped to one or more portions of at least one physical antenna panel; mapping a plurality of reference signal resources to the plurality of virtual antenna panels; and A reference signal is time-duplexed based at least in part on the mapping and transmitted to a base station using the plurality of reference signal resources, wherein one or more gap times within the time-duplexing are based at least in part on a power state of a target virtual antenna panel among the plurality of virtual antenna panels.

2. The method according to claim 1, wherein The antenna port groups are configured for simultaneous reception but not for simultaneous transmission.

3. The method according to claim 1, further comprising: When transmitting on the multiple reference signal resources, the same spatial domain transmit filter is applied.

4. The method according to claim 1, wherein The one or more gap times within the time duplex are further based at least in part on a mapping between the one or more portions of the at least one physical antenna panel and the plurality of virtual antenna panels.

5. The method according to claim 1, further comprising: Two or more gap times are sent to the base station based at least in part on the power states of the plurality of virtual antenna panels.

6. The method according to claim 5, further comprising: receiving, from the base station, two or more time-domain resource configurations corresponding to each of the plurality of reference signal resources based at least in part on the two or more gap times, The reference signal is sent on the plurality of reference signal resources based at least in part on the power states of the plurality of virtual antenna panels.

7. The method according to claim 6, further comprising: Information indicating the power status of the plurality of virtual antenna panels is sent to the base station.

8. The method according to claim 7, wherein: The information also indicates an interim time associated with energizing the plurality of virtual antenna panels.

9. The method according to claim 6, further comprising: Instructions for reconfiguring the power states of the plurality of virtual antenna panels are received from the base station.

10. A method of wireless communication performed by a base station, comprising: sending an indication of a plurality of reference signal resources to a user equipment (UE); receiving an indication of a plurality of virtual antenna panels from the UE, wherein the plurality of virtual antenna panels correspond to a plurality of antenna port groups and are mapped to one or more portions of at least one physical antenna panel; and and receiving a reference signal from the UE using the plurality of reference signal resources based at least in part on the plurality of virtual antenna panels, wherein the reference signals received on the plurality of reference signal resources are time duplexed, and one or more gap times within the time duplexing are based at least in part on a power state of a target virtual antenna panel among the plurality of virtual antenna panels.

11. The method according to claim 10, further comprising: A spatial domain transmit filter to be used on the plurality of reference signal resources is sent to the UE.

12. The method according to claim 10, wherein: The one or more gap times within the time duplex are further based at least in part on a mapping between the one or more portions of the at least one physical antenna panel and the plurality of virtual antenna panels.

13. The method according to claim 10, further comprising: Two or more slot times based at least in part on power states of the plurality of virtual antenna panels are received from the UE.

14. The method according to claim 13, further comprising: transmitting, to the UE, two or more time-domain resource configurations corresponding to each of the plurality of reference signal resources based at least in part on the two or more gap times, The reference signal is received on the plurality of reference signal resources based at least in part on the power states of the plurality of virtual antenna panels.

15. The method according to claim 14, further comprising: Information indicative of the power status of the plurality of virtual antenna panels is received from the UE.

16. The method according to claim 15, wherein The information also indicates an interim time associated with energizing the plurality of virtual antenna panels.

17. The method according to claim 14, further comprising: An instruction for reconfiguring the power states of the plurality of virtual antenna panels is sent to the UE.

18. A user equipment for wireless communication, comprising: Memory; as well as one or more processors coupled to the memory, the memory and the one or more processors being configured to: determining a plurality of virtual antenna panels, wherein the plurality of virtual antenna panels correspond to a plurality of antenna port groups and are mapped to one or more portions of at least one physical antenna panel; mapping a plurality of reference signal resources to the plurality of virtual antenna panels; and A reference signal is time-duplexed based at least in part on the mapping and transmitted to a base station using the plurality of reference signal resources, wherein one or more gap times within the time-duplexing are based at least in part on a power state of a target virtual antenna panel among the plurality of virtual antenna panels.

19. A base station for wireless communication, comprising: Memory; as well as one or more processors coupled to the memory, the memory and the one or more processors being configured to: sending an indication of a plurality of reference signal resources to a user equipment (UE); receiving an indication of a plurality of virtual antenna panels from the UE, wherein the plurality of virtual antenna panels correspond to a plurality of antenna port groups and are mapped to one or more portions of at least one physical antenna panel; and and receiving a reference signal from the UE using the plurality of reference signal resources based at least in part on the plurality of virtual antenna panels, wherein the reference signals received on the plurality of reference signal resources are time duplexed, and one or more gap times within the time duplexing are based at least in part on a power state of a target virtual antenna panel among the plurality of virtual antenna panels.

20. A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions comprising: One or more instructions that, when executed by one or more processors of a user equipment (UE), cause the UE to: determining a plurality of virtual antenna panels, wherein the plurality of virtual antenna panels correspond to a plurality of antenna port groups and are mapped to one or more portions of at least one physical antenna panel; mapping a plurality of reference signal resources to the plurality of virtual antenna panels; and A reference signal is time-duplexed based at least in part on the mapping and transmitted to a base station using the plurality of reference signal resources, wherein one or more gap times within the time-duplexing are based at least in part on a power state of a target virtual antenna panel among the plurality of virtual antenna panels.

21. A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions comprising: One or more instructions that, when executed by one or more processors of a base station, cause the base station to: sending an indication of a plurality of reference signal resources to a user equipment (UE); receiving an indication of a plurality of virtual antenna panels from the UE, wherein the plurality of virtual antenna panels correspond to a plurality of antenna port groups and are mapped to one or more portions of at least one physical antenna panel; and and receiving a reference signal from the UE using the plurality of reference signal resources based at least in part on the plurality of virtual antenna panels, wherein the reference signals received on the plurality of reference signal resources are time duplexed, and one or more gap times within the time duplexing are based at least in part on a power state of a target virtual antenna panel among the plurality of virtual antenna panels.

22. An apparatus for wireless communication, comprising: means for determining a plurality of virtual antenna panels, wherein the plurality of virtual antenna panels correspond to a plurality of antenna port groups and are mapped to one or more portions of at least one physical antenna panel; means for mapping a plurality of reference signal resources to the plurality of virtual antenna panels; and means for time duplexing a reference signal based at least in part on the mapping and transmitting to a base station using the plurality of reference signal resources, wherein one or more gap times within the time duplexing are based at least in part on a power state of a target virtual antenna panel of the plurality of virtual antenna panels.

23. An apparatus for wireless communication, comprising: means for sending an indication of a plurality of reference signal resources to a user equipment (UE); means for receiving, from the UE, an indication of a plurality of virtual antenna panels, wherein the plurality of virtual antenna panels correspond to a plurality of antenna port groups and are mapped to one or more portions of at least one physical antenna panel; and and means for receiving a reference signal from the UE using the plurality of reference signal resources based at least in part on the plurality of virtual antenna panels, wherein the reference signals received on the plurality of reference signal resources are time duplexed, and wherein one or more gap times within the time duplexing are based at least in part on a power state of a target virtual antenna panel among the plurality of virtual antenna panels.

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