User equipment, baseband processor, and base station for SRS antenna switching enhancement

Abstract

Apparatus, system, and method for SRS antenna switching. A UE may transmit a capability message indicating an antenna configuration associated with SRS antenna switching to a base station, for example, via RRC signaling. The capability message may indicate at least one (and / or one or more) of a one transmit point (1T) and six receive point (6R) SRS resource set configuration, a 1T8R SRS resource set configuration, a 2T6R SRS resource set configuration, a 2T8R SRS resource set configuration, and / or a 4T8R SRS resource set configuration. The UE may receive a configuration message from the base station, for example, via RRC signaling. The configuration message may indicate an SRS antenna switching configuration based at least in part on the capability message. The UE may transmit one or more SRSs to the base station, for example, based on the SRS antenna switching configuration.

Description

Technical Field

[0001] The present invention relates to wireless communications, and more particularly to apparatus, systems, and methods for sounding reference signal (SRS) antenna switching enhancement for enhanced multiple-input multiple-output (MIMO) operations. Background Art

[0002] The use of wireless communication systems is growing rapidly. In recent years, wireless devices such as smartphones and tablets have become increasingly sophisticated. In addition to supporting phone calls, many mobile devices now also provide access to the Internet, email, text messaging, and navigation using the Global Positioning System (GPS), and are capable of operating sophisticated applications that utilize these capabilities.

[0003] Long Term Evolution (LTE) is currently the technology of choice for most wireless network operators worldwide, enabling them to provide mobile broadband data and high-speed internet access to their subscriber base. LTE was first proposed in 2004 and standardized in 2008. Since then, as the use of wireless communication systems has grown exponentially, the demand on wireless network operators has risen to support higher capacity for the increasing density of mobile broadband users. Consequently, research on new radio access technologies began in 2015, and the first version of Fifth Generation New Radio (5G NR) was standardized in 2017.

[0004] Compared to LTE, 5G-NR (also referred to as NR) offers higher capacity for a higher density of mobile broadband users, while also supporting ultra-reliable and massive machine-type device-to-device communications, lower latency, and / or lower battery consumption. Furthermore, NR allows for more flexible UE scheduling than current LTE. Consequently, efforts are underway to leverage the higher throughput possible at higher frequencies in the ongoing development of 5G-NR. Summary of the Invention

[0005] Embodiments relate to wireless communications, and more particularly, to apparatus, systems, and methods for sounding reference signal (SRS) antenna switching enhancement for enhanced multiple-input multiple-output (MIMO) operations.

[0006] For example, in some embodiments, a user equipment device (UE), such as UE 106, may be configured to transmit a capability message to a base station indicating an antenna configuration associated with SRS antenna switching. The capability message may indicate at least one (and / or one or more) of a one transmit point (1T) and six receive point (6R) SRS resource set configuration, a 1T8R SRS resource set configuration, a 2T6R SRS resource set configuration, a 2T8RSRS resource set configuration, and / or a 4T8R SRS resource set configuration. In some embodiments, the capability message may be transmitted via higher layer signaling, such as RRC signaling. The UE may be configured to receive a configuration message from the base station, wherein the configuration message may indicate the SRS antenna switching configuration. In some embodiments, the SRS antenna switching configuration may be based at least in part on the capability message. Additionally, the configuration message may be received via higher layer signaling, such as RRC signaling. Furthermore, the UE may be configured to transmit one or more SRSs to the base station, for example, based on the SRS antenna switching configuration.

[0007] As another example, in some embodiments, a base station (such as base station 102) may be configured to receive a capability message from a UE indicating an antenna configuration associated with SRS antenna switching. The capability message may indicate at least one (and / or one or more) of a one transmit point (1T) and six receive point (6R) SRS resource set configuration, a 1T8R SRS resource set configuration, a 2T6R SRS resource set configuration, a 2T8R SRS resource set configuration, and / or a 4T8R SRS resource set configuration. In some embodiments, the capability message may be transmitted via higher layer signaling, such as RRC signaling. The base station may be configured to transmit a configuration message to the UE, wherein the configuration message may indicate the SRS antenna switching configuration. In some embodiments, the SRS antenna switching configuration may be based at least in part on the capability message. Additionally, the configuration message may be transmitted via higher layer signaling, such as RRC signaling. Furthermore, the base station may be configured to receive one or more SRSs from the UE, for example, based on the SRS antenna switching configuration.

[0008] The techniques described herein may be implemented in and / or used with a number of different types of devices, including, but not limited to, any of unmanned aerial vehicles (UAVs), unmanned aerial controllers (UACs), UTM servers, base stations, access points, cellular telephones, tablet computers, wearable computing devices, portable media players, and various other computing devices.

[0009] This summary is intended to provide a brief overview of some of the subject matter described in this document. Therefore, it should be understood that the above-described features are merely examples and should not be construed as narrowing the scope or spirit of the subject matter described herein in any way. Other features, aspects, and advantages of the subject matter described herein will become apparent from the following detailed description, accompanying drawings, and claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] A better understanding of the present subject matter may be obtained when the following detailed description of various embodiments is considered in conjunction with the following drawings, in which:

[0011] Figure 1A An exemplary wireless communication system is shown in accordance with some embodiments.

[0012] Figure 1B Examples of base stations (BSs) and access points communicating with user equipment (UE) devices are shown in accordance with some embodiments.

[0013] Figure 2 An exemplary block diagram of a BS according to some embodiments is shown.

[0014] Figure 3 An exemplary block diagram of a UE according to some embodiments is shown.

[0015] Figure 4 An exemplary block diagram of cellular communication circuitry is shown in accordance with some embodiments.

[0016] Figure 5 An example of a baseband processor architecture for a UE according to some embodiments is shown.

[0017] Figure 6A and Figure 6B The RRC parameters for antenna switching are shown.

[0018] Figure 7 A block diagram illustrating an example of a method for configuring sounding reference signal (SRS) antenna switching according to some embodiments is shown.

[0019] Figure 8 A block diagram illustrating another example of a method for configuring sounding reference signal (SRS) antenna switching according to some embodiments is shown.

[0020] While the features described herein are susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings and described in detail herein. It should be understood, however, that the drawings and detailed description thereof are not intended to limit this disclosure to the particular forms disclosed, but on the contrary, are intended to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the subject matter as defined by the appended claims. DETAILED DESCRIPTION

[0021] Acronyms

[0022] Various acronyms are used throughout this disclosure. The definitions of the most prominent acronyms used that may appear throughout this disclosure are as follows:

[0023] 3GPP: Third Generation Partnership Project

[0024] UE: User Equipment

[0025] RF: Radio Frequency

[0026] BS: Base Station

[0027] DL: Downlink

[0028] UL: Uplink

[0029] LTE: Long Term Evolution

[0030] NR: New Radio

[0031] 5GS: 5G system

[0032] 5GMM: 5GS Mobility Management

[0033] 5GC / 5GCN: 5G core network

[0034] IE: Information Element

[0035] CE: Control Element

[0036] MAC: Media Access Control

[0037] SSB: Synchronous Signal Block

[0038] CSI-RS: Channel State Information Reference Signal

[0039] PDCCH: Physical Downlink Control Channel

[0040] PDSCH: Physical Downlink Shared Channel

[0041] RRC: Radio Resource Control

[0042] RRM: Radio Resource Management

[0043] CORESET: Control resource set

[0044] TCI: Transmission Configuration Indicator

[0045] DCI: Downlink Control Indicator

[0046] the term

[0047] The following is a glossary of terms used in this disclosure:

[0048] Memory medium—any of various types of non-transitory memory devices or storage devices. The term "memory medium" is intended to include installation media, such as CD-ROMs, floppy disks, or tape devices; computer system memory or random access memory such as DRAM, DDR RAM, SRAM, EDO RAM, Rambus RAM, etc.; non-volatile memory such as flash memory, magnetic media, such as hard drives or optical storage devices; registers or other similar types of memory elements, etc. Memory media may also include other types of non-transitory memory or combinations thereof. In addition, the memory medium may be located in the first computer system executing the program, or may be located in a different second computer system connected to the first computer system via a network such as the Internet. In the latter case, the second computer system may provide program instructions to the first computer for execution. The term "memory medium" may include two or more memory media that may reside in different locations in different computer systems connected, for example, via a network. The memory medium may store program instructions (e.g., represented as a computer program) that can be executed by one or more processors.

[0049] Carrier Media—storage media as described above, and physical transmission media such as a bus, network, and / or other physical transmission media that carry signals such as electrical, electromagnetic, or digital signals.

[0050] Programmable hardware elements - include various hardware devices that include multiple programmable function blocks connected via programmable interconnects. Examples include FPGAs (field programmable gate arrays), PLDs (programmable logic devices), FPOAs (field programmable object arrays), and CPLDs (complex PLDs). Programmable function blocks can vary from fine-grained (combinational logic units or lookup tables) to coarse-grained (arithmetic logic units or processor cores). Programmable hardware elements may also be referred to as "configurable logic units."

[0051] Computer system (or computer)—any of various types of computing or processing systems, including personal computer systems (PCs), mainframe computer systems, workstations, network appliances, Internet appliances, personal digital assistants (PDAs), television systems, grid computing systems, or other devices or combinations of devices. In general, the term "computer system" can be broadly defined to encompass any device (or combination of devices) having at least one processor that executes instructions from a memory medium.

[0052] User Equipment (UE) (or "UE device") - any of various types of computer system devices that are mobile or portable and perform wireless communication. Examples of UE devices include mobile phones or smartphones (e.g., iPhones). TM , based on Android TM phones), portable gaming devices (e.g., Nintendo DS TM PlayStation Portable TM 、Gameboy Advance TM , iPhone TM ), laptops, wearable devices (e.g., smart watches, smart glasses), PDAs, portable internet devices, music players, data storage devices, other handheld devices, unmanned aerial vehicles (UAVs) (e.g., drones), UAV controllers (UACs), etc. In general, the term "UE" or "UE device" may be broadly defined to encompass any electronic, computing, and / or telecommunication device (or combination of devices) that is easily transportable by a user and capable of wireless communication.

[0053] Base Station—The term “base station” has the full breadth of its ordinary meaning and includes at least a wireless communication station that is installed at a fixed location and used to communicate as part of a wireless telephone system or radio system.

[0054] Processing element (or processor)—refers to any element or combination of elements capable of performing functions in a device such as user equipment or a cellular network device. A processing element may include, for example, a processor and associated memory, portions or circuits of individual processor cores, entire processor cores, processor arrays, circuits such as ASICs (application-specific integrated circuits), programmable hardware elements such as field-programmable gate arrays (FPGAs), and any combination thereof.

[0055] Channel - the medium used to transmit information from a sender (transmitter) to a receiver. It should be noted that since the characteristics of the term "channel" may vary according to different wireless protocols, the term "channel" as used in the present invention may be considered to be used in a manner that is consistent with the standard of the type of device to which the term is used. In some standards, the channel width may be variable (e.g., depending on device capabilities, frequency band conditions, etc.). For example, LTE may support scalable channel bandwidths of 1.4 MHz to 20 MHz. In contrast, a WLAN channel may be 22 MHz wide, while a Bluetooth channel may be 1 MHz wide. Other protocols and standards may include different definitions of channels. In addition, some standards may define and use multiple types of channels, such as different channels for uplink or downlink and / or different channels for different purposes such as data, control information, etc.

[0056] Frequency band—The term “frequency band” has the full breadth of its ordinary meaning and includes at least a segment of the spectrum (eg, radio frequency spectrum) in which channels are used or set aside for the same purpose.

[0057] Wi-Fi—The term "Wi-Fi" (or WiFi) has the full scope of its ordinary meaning and includes at least wireless communication networks, or RATs, that are served by wireless LAN (WLAN) access points and provide connectivity to the Internet through those access points. Most modern Wi-Fi networks (or WLAN networks) are based on the IEEE 802.11 standard and are marketed under the name "Wi-Fi." Wi-Fi (WLAN) networks are distinct from cellular networks.

[0058] 3GPP access—refers to access (e.g., radio access technology) specified by the 3GPP standards. These accesses include, but are not limited to, GSM / GPRS, LTE, LTE-A, and / or 5G NR. Generally speaking, 3GPP access refers to various types of cellular access technologies.

[0059] Non-3GPP access - refers to any access (e.g., radio access technology) not specified by the 3GPP standards. These accesses include, but are not limited to, WiMAX, CDMA2000, Wi-Fi, WLAN, and / or fixed networks. Non-3GPP accesses can be divided into two categories, "trusted" and "untrusted": Trusted non-3GPP accesses can interact directly with the Evolved Packet Core (EPC) and / or 5G Core (5GC), while untrusted non-3GPP interworks with the EPC / 5GC via network entities (such as Evolved Packet Data Gateways and / or 5G NR Gateways). Generally speaking, non-3GPP access refers to various types of non-cellular access technologies.

[0060] Automatic—refers to an action or operation being performed by a computer system (e.g., software executed by the computer system) or a device (e.g., a circuit, a programmable hardware element, an ASIC, etc.) without requiring user input to directly specify or execute the action or operation. Thus, the term "automatically" is in contrast to an action being manually performed or specified by a user, where the user provides input to directly perform the action. An automatic process may be initiated by user-provided input, but the subsequent actions performed "automatically" are not specified by the user, i.e., they are not performed "manually," where the user specifies each action to be performed. For example, a user filling out an electronic form by selecting each field and providing input specifying information (e.g., by typing information, selecting checkboxes, radio selections, etc.) is not manually filling out the form, even though the computer system must update the form in response to the user's actions. The form can be automatically filled out by a computer system, where the computer system (e.g., software executing on the computer system) analyzes the fields of the form and fills it out without requiring any user input to specify the answers to the fields. As indicated above, a user can invoke the automatic filling of a form without participating in the actual filling out of the form (e.g., the user does not manually specify the answers to the fields; they are automatically completed). This specification provides various examples of operations that are automatically performed in response to actions that a user has taken.

[0061] About—refers to a value that is close to being correct or exact. For example, about can refer to a value that is within 1% to 10% of the exact (or desired) value. However, it should be noted that the actual threshold value (or tolerance) may depend on the application. For example, in some embodiments, "about" may mean within 0.1% of some specified or desired value, while in various other embodiments, the threshold value may be, for example, 2%, 3%, 5%, etc., depending on the desires or requirements of a particular application.

[0062] Concurrency—refers to parallel execution or implementation, where tasks, processes, or programs are executed in an at least partially overlapping manner. For example, concurrency can be achieved using "strong" or strict parallelism, where tasks are executed (at least partially) in parallel on respective computing elements, or using "weak parallelism," where tasks are executed in an interleaved manner (e.g., by time multiplexing of execution threads).

[0063] Various components may be described as being "configured to" perform one or more tasks. In such contexts, "configured to" is a broad statement that generally means "having a structure" to perform one or more tasks during operation. Thus, a component can be configured to perform a task even when the component is not currently performing the task (e.g., a set of electrical conductors can be configured to electrically connect a module to another module even when the two modules are not connected). In some contexts, "configured to" can be a broad statement that generally means "having a structure" to carry out one or more tasks during operation. Thus, a component can be configured to perform a task even when the component is not currently turned on. Typically, the circuitry that forms the structure corresponding to "configured to" may include hardware circuitry.

[0064] For ease of description, various components may be described as performing one or more tasks. Such descriptions should be interpreted as including the phrase "configured to." Representing a component as being configured to perform one or more tasks expressly intends that the component not be interpreted under 35 U.S.C. §112(f).

[0065] Figure 1A and Figure 1B :Communication System

[0066] Figure 1A 1 shows a simplified exemplary wireless communication system according to some embodiments. Note that Figure 1A The system is merely one example of a possible system, and features of the present disclosure may be implemented in any of a variety of systems, as desired.

[0067] As shown, the exemplary wireless communication system includes a base station 102A that communicates with one or more user devices 106A, 106B, 106N, etc. via a transmission medium. Each user device may be referred to herein as a "user equipment" (UE). Therefore, user device 106 is referred to as a UE or UE device.

[0068] Base station (BS) 102A may be a base transceiver station (BTS) or a cell site ("cellular base station") and may include hardware that enables wireless communications with UEs 106A through 106N.

[0069] The communication area (or coverage area) of a base station may be referred to as a "cell". The base station 102A and the UE 106 may be configured to communicate over a transmission medium using any of a variety of radio access technologies (RATs), also known as wireless communication technologies or telecommunication standards, such as GSM, UMTS (associated with, for example, WCDMA or TD-SCDMA air interfaces), LTE, LTE-Advanced (LTE-A), 5G New Radio (5G NR), HSPA, 3GPP2 CDMA2000 (e.g., 1xRTT, 1xEV-DO, HRPD, eHRPD), and the like. Note that if the base station 102A is implemented in the context of LTE, it may alternatively be referred to as an "eNodeB" or "eNB". Note that if the base station 102A is implemented in the context of 5G NR, it may alternatively be referred to as a "gNodeB" or "gNB".

[0070] As shown, base station 102A may also be configured to communicate with network 100 (e.g., a cellular service provider's core network, a telecommunications network such as the Public Switched Telephone Network (PSTN), and / or the Internet, among other possibilities). Thus, base station 102A may facilitate communications between user devices and / or between user devices and network 100. In particular, cellular base station 102A may provide UE 106 with various communication capabilities, such as voice, SMS, and / or data services.

[0071] Base station 102A and other similar base stations (such as base stations 102B...102N) operating according to the same or different cellular communication standards can therefore be provided as a network of cells that can provide continuous or nearly continuous overlapping service to UEs 106A-N and similar devices over a geographic area via one or more cellular communication standards.

[0072] Thus, although base station 102A may function as Figure 1A 106A-N, each UE 106 may also be capable of receiving signals from (and possibly within communication range of) one or more other cells (which may be provided by base stations 102B-N and / or any other base stations), which may be referred to as "neighboring cells." Such cells may also be capable of facilitating communications between user devices and / or between user devices and network 100. Such cells may include "macro" cells, "micro" cells, "pico" cells, and / or cells of any other variety of granularities of service area size. For example, in Figure 1A The base stations 102A-102B shown in FIG may be macro cells, while the base station 102N may be a micro cell. Other configurations are also possible.

[0073] In some embodiments, base station 102A may be a next-generation base station, such as a 5G New Radio (5G NR) base station or "gNB." In some embodiments, a gNB may be connected to a legacy evolved packet core (EPC) network and / or to an NR core (NRC) network. Furthermore, a gNB cell may include one or more transition and reception points (TRPs). Furthermore, a UE capable of operating in accordance with 5G NR may connect to one or more TRPs within one or more gNBs.

[0074] It should be noted that the UE 106 is capable of communicating using multiple wireless communication standards. For example, in addition to at least one cellular communication protocol (e.g., GSM, UMTS (associated with, for example, WCDMA or TD-SCDMA air interfaces), LTE, LTE-A, 5G NR, HSPA, 3GPP2 CDMA2000 (e.g., 1xRTT, 1xEV-DO, HRPD, eHRPD), etc.), the UE 106 can be configured to communicate using wireless networking (e.g., Wi-Fi) and / or peer-to-peer wireless communication protocols (e.g., Bluetooth, Wi-Fi peer-to-peer, etc.). If desired, the UE 106 can also or alternatively be configured to communicate using one or more global navigation satellite systems (GNSS, such as GPS or GLONASS), one or more mobile television broadcast standards (e.g., ATSC-M / H or DVB-H), and / or any other wireless communication protocols. Other combinations of wireless communication standards (including more than two wireless communication standards) are also possible.

[0075] Figure 1B A user equipment 106 (e.g., one of devices 106A through 106N) is shown in accordance with some embodiments in communication with a base station 102 and an access point 112. The UE 106 may be a device having cellular and non-cellular communication capabilities (e.g., Bluetooth, Wi-Fi, etc.), such as a mobile phone, handheld device, computer or tablet, or virtually any type of wireless device.

[0076] The UE 106 may include a processor configured to execute program instructions stored in a memory. The UE 106 may perform any of the method embodiments described herein by executing such stored instructions. Alternatively or in addition, the UE 106 may include a programmable hardware element, such as a field programmable gate array (FPGA) configured to perform any of the method embodiments described herein or any portion of any of the method embodiments described herein.

[0077] UE 106 may include one or more antennas for communicating using one or more wireless communication protocols or technologies. In some embodiments, UE 106 may be configured to communicate using, for example, CDMA2000 (1xRTT / 1xEV-DO / HRPD / eHRPD), LTE / LTE-Advanced, or 5G NR using a single shared radio and / or GSM, LTE, LTE-Advanced, or 5G NR using a single shared radio. The shared radio may be coupled to a single antenna or to multiple antennas (e.g., for MIMO) for performing wireless communications. Typically, the radio may include any combination of a baseband processor, analog radio frequency (RF) signal processing circuitry (e.g., including filters, mixers, oscillators, amplifiers, etc.), or digital processing circuitry (e.g., for digital modulation and other digital processing). Similarly, the radio may implement one or more receive and transmit chains using the aforementioned hardware. For example, UE 106 may share one or more portions of a receive and / or transmit chain between multiple wireless communication technologies such as those discussed above.

[0078] In some embodiments, the UE 106 may include a separate transmit chain and / or receive chain (e.g., including separate antennas and other radio components) for each wireless communication protocol with which it is configured to communicate. As another possibility, the UE 106 may include one or more radio components shared between multiple wireless communication protocols, and one or more radio components used exclusively by a single wireless communication protocol. For example, the UE 106 may include a shared radio component for communicating using either LTE or 5GNR (or LTE or 1xRTT, or LTE or GSM), and a separate radio component for communicating using each of Wi-Fi and Bluetooth. Other configurations are also possible.

[0079] Figure 2 :Block diagram of base station

[0080] Figure 2 1 shows an exemplary block diagram of a base station 102 according to some embodiments. Figure 2 The base station 102 is only one example of a possible base station. As shown, the base station 102 may include a processor 204 that may execute program instructions for the base station 102. The processor 204 may also be coupled to a memory management unit (MMU) 240 or other circuit or device that may be configured to receive addresses from the processor 204 and translate those addresses into locations in memory (e.g., memory 260 and read-only memory (ROM) 250).

[0081] The base station 102 may include at least one network port 270. The network port 270 may be configured to couple to a telephone network and provide access to a plurality of devices, such as the UE device 106, as described above. Figure 1A and Figure 2 Access to the telephone network described in.

[0082] The network port 270 (or an additional network port) may also or alternatively be configured to couple to a cellular network, such as a core network of a cellular service provider. The core network may provide mobility-related services and / or other services to a plurality of devices, such as the UE device 106. In some cases, the network port 270 may couple to a telephone network via the core network, and / or the core network may provide a telephone network (e.g., in other UE devices served by the cellular service provider).

[0083] In some embodiments, base station 102 may be a next-generation base station, such as a 5G New Radio (5G NR) base station, or "gNB." In such embodiments, base station 102 may be connected to a legacy evolved packet core (EPC) network and / or to an NR core (NRC) network. Furthermore, base station 102 may be considered a 5G NR cell and may include one or more transition and reception points (TRPs). Furthermore, a UE capable of operating in accordance with 5G NR may connect to one or more TRPs within one or more gNBs.

[0084] Base station 102 may include at least one antenna 234 and possibly multiple antennas. The at least one antenna 234 may be configured to operate as a wireless transceiver and may be further configured to communicate with UE device 106 via radio 230. Antenna 234 communicates with radio 230 via communication chain 232. Communication chain 232 may be a receive chain, a transmit chain, or both. Radio 230 may be configured to communicate via various wireless communication standards, including but not limited to 5G NR, LTE, LTE-A, GSM, UMTS, CDMA2000, Wi-Fi, and the like.

[0085] The base station 102 may be configured to perform wireless communications using multiple wireless communication standards. In some cases, the base station 102 may include multiple radios that enable the base station 102 to communicate according to multiple wireless communication technologies. For example, as one possibility, the base station 102 may include an LTE radio component for performing communications according to LTE and a 5G NR radio component for performing communications according to 5G NR. In this case, the base station 102 may be capable of operating as both an LTE base station and a 5G NR base station. As another possibility, the base station 102 may include a multimode radio component capable of performing communications according to any one of multiple wireless communication technologies (e.g., 5G NR and Wi-Fi, LTE and Wi-Fi, LTE and UMTS, LTE and CDMA2000, UMTS and GSM, etc.).

[0086] As further described later herein, BS 102 may include hardware and software components for implementing or supporting specific implementations of the features described herein. The processor 204 of the base station 102 may be configured to implement or support implementation of part or all of the methods described herein, for example, by executing program instructions stored on a memory medium (e.g., a non-transitory computer-readable memory medium). Alternatively, the processor 204 may be configured as a programmable hardware element such as an FPGA (field programmable gate array), or as an ASIC (application-specific integrated circuit), or a combination thereof. Alternatively (or in addition), in combination with one or more of the other components 230, 232, 234, 240, 250, 260, 270, the processor 204 of the BS 102 may be configured to implement or support implementation of part or all of the features described herein.

[0087] Furthermore, as described herein, processor 204 may be comprised of one or more processing elements. In other words, one or more processing elements may be included in processor 204. Thus, processor 204 may include one or more integrated circuits (ICs) configured to perform the functions of processor 204. Furthermore, each integrated circuit may include circuits (e.g., a first circuit, a second circuit, etc.) configured to perform one or more functions of processor 204.

[0088] Additionally, as described herein, radio 230 may be comprised of one or more processing elements. In other words, one or more processing elements may be included in radio 230. Thus, radio 230 may include one or more integrated circuits (ICs) configured to perform the functions of radio 230. Furthermore, each integrated circuit may include circuitry (e.g., a first circuit, a second circuit, etc.) configured to perform the functions of radio 230.

[0089] Figure 3 : UE block diagram

[0090] Figure 3 1 shows an exemplary simplified block diagram of a communication device 106 according to some embodiments. Note that Figure 3 The block diagram of the communication device is only an example of a possible communication device. According to the embodiment, the communication device 106 can be a user equipment (UE) device, a mobile device or mobile station, a wireless device or wireless station, a desktop computer or computing device, a mobile computing device (e.g., a laptop computer, a notebook or a portable computing device), a tablet computer, an unmanned aerial vehicle (UAV), a UAV controller (UAC) and / or a combination of devices and other devices. As shown, the communication device 106 may include a group of components 300 configured to perform core functions. For example, the group of components can be implemented as a system on a chip (SOC), which may include parts for various purposes. Alternatively, the group of components 300 can be implemented as a separate component or component group for various purposes. This group of components 300 can be (e.g., communicatively; directly or indirectly) coupled to various other circuits of the communication device 106.

[0091] For example, the communication device 106 may include various types of memory (e.g., including NAND flash memory 310), input / output interfaces such as a connector I / F 320 (e.g., for connecting to a computer system; a docking station; a charging station; input devices such as a microphone, a camera, a keyboard; output devices such as a speaker; etc.), a display 360 that may be integrated with the communication device 106 or external to the communication device 106, and cellular communication circuitry 330 such as for 5G NR, LTE, GSM, etc., and short-range to medium-range wireless communication circuitry 329 (e.g., Bluetooth TM and WLAN circuitry). In some embodiments, the communication device 106 may include wired communication circuitry (not shown), such as, for example, a network interface card for Ethernet.

[0092] Cellular communication circuitry 330 may be (e.g., communicatively; directly or indirectly) coupled to one or more antennas, such as antennas 335 and 336, as shown. Short-range to medium-range wireless communication circuitry 329 may also be (e.g., communicatively; directly or indirectly) coupled to one or more antennas, such as antennas 337 and 338, as shown. Alternatively, short-range to medium-range wireless communication circuitry 329 may be (e.g., communicatively; directly or indirectly) coupled to antennas 335 and 336, in addition to or in lieu of being (e.g., communicatively; directly or indirectly) coupled to antennas 337 and 338. Short-range to medium-range wireless communication circuitry 329 and / or cellular communication circuitry 330 may include multiple receive chains and / or multiple transmit chains for receiving and / or transmitting multiple spatial streams, such as in a multiple-input, multiple-output (MIMO) configuration.

[0093] In some embodiments, as further described below, the cellular communication circuitry 330 can include dedicated receive chains (including and / or coupled to (e.g., communicatively; directly or indirectly) dedicated processors and / or radios) for multiple RATs (e.g., a first receive chain for LTE and a second receive chain for 5G-NR). Furthermore, in some embodiments, the cellular communication circuitry 330 can include a single transmit chain that can switch between radios dedicated to specific RATs. For example, a first radio can be dedicated to a first RAT, such as LTE, and can communicate with a dedicated receive chain and a transmit chain shared with an additional radio, such as a second radio that can be dedicated to a second RAT (e.g., 5G NR) and can communicate with both the dedicated receive chain and the shared transmit chain.

[0094] The communication device 106 may also include and / or be configured for use with one or more user interface elements. User interface elements may include various elements such as a display 360 (which may be a touch screen display), a keyboard (which may be a separate keyboard or may be implemented as part of the touch screen display), a mouse, a microphone and / or speakers, one or more cameras, one or more buttons, and / or any of a variety of other elements capable of providing information to a user and / or receiving or interpreting user input.

[0095] The communication device 106 may also include one or more smart cards 345 with SIM (Subscriber Identity Module) functionality, such as one or more UICC cards (one or more Universal Integrated Circuit Cards) 345. It should be noted that the term "SIM" or "SIM entity" is intended to include any of various types of SIM implementations or SIM functionality, such as one or more UICC cards 345, one or more eUICCs, one or more eSIMs, removable or embedded, etc. In some embodiments, the UE 106 may include at least two SIMs. Each SIM may execute one or more SIM applications and / or otherwise implement SIM functionality. Thus, each SIM may be a single smart card that may be embedded, for example, soldered to a circuit board in the UE 106, or each SIM 345 may be implemented as a removable smart card. Thus, the SIM may be one or more removable smart cards (such as UICC cards, sometimes referred to as "SIM cards"), and / or the SIM 345 may be one or more embedded cards (such as embedded UICCs (eUICCs), sometimes referred to as "eSIMs" or "eSIM cards"). In some embodiments (such as when the SIM includes an eUICC), one or more of the SIMs may implement embedded SIM (eSIM) functionality; in such embodiments, a single SIM in the SIM may execute multiple SIM applications. Each SIM may include components such as a processor and / or memory; instructions for performing SIM / eSIM functionality may be stored in the memory and executed by the processor. In some embodiments, the UE 106 may include a combination of removable smart cards and fixed / non-removable smart cards (such as one or more eUICC cards implementing eSIM functionality), as needed. For example, the UE 106 may include two embedded SIMs, two removable SIMs, or a combination of one embedded SIM and one removable SIM. Various other SIM configurations are also contemplated.

[0096] As described above, in some embodiments, the UE 106 may include two or more SIM cards. Including two or more SIM cards in the UE 106 may allow the UE 106 to support two different phone numbers and may allow the UE 106 to communicate on two or more corresponding networks. For example, the first SIM card may support a first RAT, such as LTE, and the second SIM card 345 may support a second RAT, such as 5G NR. Of course, other implementations and RATs are also possible. In some embodiments, when the UE 106 includes two SIM cards, the UE 106 may support Dual SIM Dual Active (DSDA) functionality. DSDA functionality may allow the UE 106 to connect to two networks simultaneously (using two different RATs), or to maintain two connections simultaneously on the same or different networks supported by two different SIM cards using the same or different RATs. DSDA functionality may also allow the UE 106 to receive voice calls or data traffic simultaneously on any phone number. In some embodiments, voice calls may be packet-switched communications. In other words, voice calls may be received using Voice over LTE (VoLTE) technology and / or Voice over NR (VoNR) technology. In some embodiments, the UE 106 may support Dual SIM Dual Standby (DSDS) functionality. The DSDS functionality may allow either of the two SIM cards in the UE 106 to be on standby for a voice call and / or data connection. In DSDS, while a call / data call is established on one SIM card, the other SIM card is no longer active. In some embodiments, the DSDx functionality (DSDA or DSDS functionality) may be implemented using a single SIM card (e.g., an eUICC) that executes multiple SIM applications for different carriers and / or RATs.

[0097] As shown, the SOC 300 may include a processor 302 that may execute program instructions for the communication device 106 and a display circuit 304 that may perform graphics processing and provide display signals to a display 360. The one or more processors 302 may also be coupled to a memory management unit (MMU) 340 (the MMU may be configured to receive addresses from the one or more processors 302 and translate those addresses into locations in memory (e.g., memory 306, read-only memory (ROM) 350, NAND flash memory 310)) and / or to other circuits or devices (such as the display circuit 304, short-range to medium-range wireless communication circuitry 329, cellular communication circuitry 330, connector I / F 320, and / or display 360). The MMU 340 may be configured to perform memory protection and page table translation or setup. In some embodiments, the MMU 340 may be included as part of the processor 302.

[0098] As described above, the communication device 106 can be configured to communicate using wireless and / or wired communication circuitry. The communication device 106 can be configured to perform methods for sounding reference signal (SRS) antenna switching enhancement for enhanced multiple-input multiple-output (MIMO) operation, as further described herein.

[0099] As described herein, the communication device 106 may include hardware and software components for implementing the above-described features of the communication device 106 to send a scheduling profile for power saving to the network. For example, by executing program instructions stored on a memory medium (e.g., a non-transitory computer-readable memory medium), the processor 302 of the communication device 106 may be configured to implement some or all of the features described herein. Alternatively (or in addition), the processor 302 may be configured as a programmable hardware element, such as an FPGA (field programmable gate array) or an ASIC (application-specific integrated circuit). Alternatively (or in addition), in combination with one or more of the other components 300, 304, 306, 310, 320, 329, 330, 340, 345, 350, 360, the processor 302 of the communication device 106 may be configured to implement some or all of the features described herein.

[0100] Furthermore, as described herein, processor 302 may include one or more processing elements. Thus, processor 302 may include one or more integrated circuits (ICs) configured to perform the functions of processor 302. Furthermore, each integrated circuit may include circuits (e.g., a first circuit, a second circuit, etc.) configured to perform one or more functions of processor 302.

[0101] Further, as described herein, the cellular communication circuitry 330 and the short-range to medium-range wireless communication circuitry 329 may each include one or more processing elements. In other words, one or more processing elements may be included in the cellular communication circuitry 330, and similarly, one or more processing elements may be included in the short-range to medium-range wireless communication circuitry 329. Thus, the cellular communication circuitry 330 may include one or more integrated circuits (ICs) configured to perform the functions of the cellular communication circuitry 330. Furthermore, each integrated circuit may include circuitry (e.g., a first circuit, a second circuit, etc.) configured to perform the functions of the cellular communication circuitry 330. Similarly, the short-range to medium-range wireless communication circuitry 329 may include one or more ICs configured to perform the functions of the short-range to medium-range wireless communication circuitry 329. Furthermore, each integrated circuit may include circuitry (e.g., a first circuit, a second circuit, etc.) configured to perform the functions of the short-range to medium-range wireless communication circuitry 329.

[0102] Figure 4 :Block diagram of cellular communication circuit

[0103] Figure 4 An exemplary simplified block diagram of a cellular communication circuit according to some embodiments is shown. Note that Figure 4 The block diagram of the cellular communication circuitry is only one example of possible cellular communication circuitry. Depending on the embodiment, the cellular communication circuitry 430 (which may be an example of the cellular communication circuitry 330) may be included in a communication device such as the communication device 106 described above. As described above, the communication device 106 may be a user equipment (UE) device, a mobile device or mobile station, a wireless device or wireless station, a desktop computer or computing device, a mobile computing device (e.g., a laptop, notebook, or portable computing device), a tablet computer, and / or a combination of devices, among other devices.

[0104] Cellular communication circuitry 430 may be (eg, communicatively; directly or indirectly) coupled to one or more antennas, such as ( Figure 4 In some embodiments, the cellular communication circuit 430 may include dedicated receive chains (including and / or coupled to (e.g., communicatively; directly or indirectly) dedicated processors and / or radio components) for multiple RATs (e.g., a first receive chain for LTE and a second receive chain for 5G-NR). For example, Figure 4 As shown, cellular communication circuitry 430 may include a modem 410 and a modem 420. Modem 410 may be configured for communication according to a first RAT (e.g., such as LTE or LTE-A), and modem 420 may be configured for communication according to a second RAT (e.g., such as 5G NR).

[0105] As shown, the modem 410 may include one or more processors 412 and a memory 416 in communication with the processors 412. The modem 410 may communicate with a radio frequency (RF) front end 480. The RF front end 480 may include circuitry for transmitting and receiving radio signals. For example, the RF front end 480 may include receive circuitry (RX) 482 and transmit circuitry (TX) 484. In some embodiments, the receive circuitry 482 may communicate with a downlink (DL) front end 450, which may include circuitry for receiving radio signals via an antenna 435a.

[0106] Similarly, the modem 420 may include one or more processors 422 and a memory 426 in communication with the processors 422. The modem 420 may communicate with an RF front end 490. The RF front end 490 may include circuitry for transmitting and receiving radio signals. For example, the RF front end 490 may include receive circuitry 492 and transmit circuitry 494. In some embodiments, the receive circuitry 492 may communicate with a DL front end 460, which may include circuitry for receiving radio signals via the antenna 435b.

[0107] In some embodiments, the switch 470 can couple the transmit circuitry 494 to the uplink (UL) front end 472. Furthermore, the switch 470 can couple the transmit circuitry 494 to the UL front end 472. The UL front end 472 can include circuitry for transmitting radio signals via the antenna 436. Thus, when the cellular communication circuitry 430 receives an instruction to transmit according to a first RAT (e.g., via a transmit chain including the transmit circuitry 484 and the UL front end 472) supported by the modem 410, the switch 470 can be switched to a first state that allows the modem 410 to transmit signals according to the first RAT (e.g., via a transmit chain including the transmit circuitry 484 and the UL front end 472). Similarly, when the cellular communication circuitry 430 receives an instruction to transmit according to a second RAT (e.g., via a transmit chain including the transmit circuitry 494 and the UL front end 472) supported by the modem 420, the switch 470 can be switched to a second state that allows the modem 420 to transmit signals according to the second RAT (e.g., via a transmit chain including the transmit circuitry 494 and the UL front end 472).

[0108] In some embodiments, the cellular communication circuitry 430 may be configured to perform methods for sounding reference signal (SRS) antenna switching enhancement for enhanced multiple-input multiple-output (MIMO) operation, as further described herein.

[0109] As described herein, the modem 410 may include hardware and software components for implementing the above-described features or for time-division multiplexing UL data for NSA NR operations and various other techniques described herein. For example, by executing program instructions stored on a memory medium (e.g., a non-transitory computer-readable memory medium), the processor 412 may be configured to implement some or all of the features described herein. Alternatively (or in addition), the processor 412 may be configured as a programmable hardware element, such as an FPGA (field programmable gate array) or an ASIC (application-specific integrated circuit). Alternatively (or in addition), in combination with one or more of the other components 430, 432, 434, 450, 470, 472, 435, and 436, the processor 412 may be configured to implement some or all of the features described herein.

[0110] Furthermore, as described herein, processor 412 may include one or more processing elements. Thus, processor 412 may include one or more integrated circuits (ICs) configured to perform the functions of processor 412. Furthermore, each integrated circuit may include circuitry (e.g., a first circuit, a second circuit, etc.) configured to perform the functions of processor 412.

[0111] As described herein, the modem 420 may include hardware and software components intended to implement the above-described features for delivering a scheduling profile for power conservation to the network, as well as various other techniques described herein. The processor 422 may be configured to implement some or all of the features described herein, for example, by executing program instructions stored on a memory medium (e.g., a non-transitory computer-readable memory medium). Alternatively (or in addition), the processor 422 may be configured as a programmable hardware element, such as an FPGA (field programmable gate array) or an ASIC (application-specific integrated circuit). Alternatively (or in addition), the processor 422 may be configured to implement some or all of the features described herein, in conjunction with one or more of the other components 440, 442, 444, 450, 470, 472, 435, and 436.

[0112] Furthermore, as described herein, processor 422 may include one or more processing elements. Thus, processor 422 may include one or more integrated circuits (ICs) configured to perform the functions of processor 422. Furthermore, each integrated circuit may include circuitry (e.g., a first circuit, a second circuit, etc.) configured to perform the functions of processor 422.

[0113] Figure 5 :Block diagram of baseband processor

[0114] Figure 5 An example of a baseband processor architecture for a UE (eg, such as UE 106 ) is shown in accordance with some embodiments. Figure 5The baseband processor architecture 500 described in the accompanying drawings may be implemented on one or more radio components (e.g., radio components 329, 330, and / or radio component 430) or modems (e.g., modem 410 and / or modem 420) as described above. As shown, non-access stratum (NAS) 510 may include a 5G NAS 520 and a legacy NAS 550. Legacy NAS 550 may include a communication connection with a legacy access stratum (AS) 570. 5G NAS 520 may include a communication connection with a 5G AS 540, a non-3GPP AS 530, and a Wi-Fi AS 532. 5G NAS 520 may include functional entities associated with both access strata. Thus, 5G NAS 520 may include multiple 5G MM entities 526 and 528 and 5G session management (SM) entities 522 and 524. The traditional NAS 550 may include functional entities such as a short message service (SMS) entity 552, an evolved packet system (EPS) session management (ESM) entity 554, a session management (SM) entity 556, an EPS mobility management (EMM) entity 558, and a mobility management (MM) / GPRS mobility management (GMM) entity 560. In addition, the traditional AS 570 may include functional entities such as an LTE AS 572, a UMTS AS 574, and / or a GSM / GPRS AS 576.

[0115] Thus, the baseband processor architecture 500 allows for a common 5G-NAS for both 5G cellular and non-cellular (e.g., non-3GPP access). Note that, as shown, 5G MM can maintain separate connection management and registration management state machines for each connection. In addition, a device (e.g., UE 106) can register to a single PLMN (e.g., 5GCN) using both 5G cellular access and non-cellular access. Furthermore, a device can be in a connected state in one access and idle state in another access, or vice versa. Finally, there may be common 5G-MM procedures (e.g., registration, deregistration, identification, authentication, etc.) for both accesses.

[0116] Note that in various embodiments, one or more of the above-mentioned functional entities of the 5G NAS and / or 5G AS may be configured to perform methods such as sounding reference signal (SRS) antenna switching enhancements for enhanced multiple-input multiple-output (MIMO) operations, for example, as further described herein.

[0117] SRS Antenna Switching Enhancement

[0118] In current cellular communication systems, a user equipment device (UE) may periodically transmit a sounding reference signal (SRS) to a base station on an uplink channel. The base station may use the SRS signal to evaluate the uplink channel quality between the UE and the base station. More specifically, the base station typically allocates only a portion of the full system bandwidth to a specific UE at any given time, so the base station may use the received SRS signal to determine which portion of the entire system bandwidth has the best relative uplink channel quality, for example, for communication with a specific UE. In other words, the base station may use the received SRS signals from the various UEs to allocate the "best" frequency region to each of the UEs based on the uplink channel quality determined from the SRS signal.

[0119] In addition, in current cellular communication systems, a UE can be configured to transmit an SRS signal at predefined intervals (e.g., according to a set period). However, a base station can also issue a specific aperiodic request to the UE to transmit an SRS signal. The base station's request for an aperiodic SRS can take the form of an SRS trigger transmitted from the base station to the UE. The base station can decide to send an aperiodic SRS trigger to the UE based on detecting degradation in uplink channel quality and for other reasons.

[0120] In the current embodiment, the base station may perform aperiodic SRS (AP-SRS) triggering in various DCI formats, including uplink (UL) DCI formats 0_1 and 0_2 and downlink (DL) DCI formats 1_1 and 1_2 and DCI format 2_3.

[0121] Furthermore, in current implementations such as 3GPP Release 15, the Sounding Reference Signal (SRS) can only be transmitted in the last six symbols of each slot. In 3GPP Release 16, the SRS can be transmitted in any symbol used for fifth generation (5G) New Radio (NR) positioning and NR (NR-U) or NR positioning in unlicensed spectrum. In addition, the SRS can be repeated for up to four symbols. In addition, simple repetition of the SRS without any cover code is supported.

[0122] In addition, in the current implementation of 5G NR, there are two types of reference signals (demodulation reference signal (DMRS) and SRS) that the UE can transmit to the base station (e.g., in the uplink) to indicate information about the channel quality. In addition, the base station can make various decisions associated with resource allocation for uplink transmission, link adaptation, and decoding of data transmitted from the UE based on these reference signals. In particular, the SRS is a UL reference signal that provides information about the combined effects of multipath fading, scattering, Doppler, and power loss on the signal transmitted from the UE. Therefore, the base station can use the SRS to estimate the channel quality and manage resource scheduling, beam management, and power control of further signals based on the SRS. Therefore, the SRS can provide the base station with information about the channel over the entire bandwidth, and based on this information, the base station can make resource allocation decisions, for example, determining which bandwidth has better channel quality compared to other bandwidth regions.

[0123] In addition, in the current implementation, SRS antenna switching, for example, configured via radio resource control (RRC) signaling, only supports certain user equipment (UE) configurations. For example, the current implementation (e.g., 3GPP Releases 15 and 16) supports UE configurations of one transmit antenna and two receive antennas (1T2R), one transmit antenna and four receive antennas (1T4R), and two transmit antennas and four receive antennas (2T4R). In other words, the UE can perform antenna switching in various ways based on the RRC parameter settings in the SRS-ResourceSet, as described in 3GPP TS 38.214, Section 6.2.1.2.

[0124] like Figure 6A and Figure 6B As shown, SRS antenna switching can be configured via the SRS-ResourceSet parameter and the SRS-Resource parameter. In particular, the srs-ResourceIDList parameter of the SRSResourceSet parameter can identify a list of SRS-Resources for antenna switching, and the usage parameter can indicate the configuration as a configuration for antenna switching. In addition, among configuring various settings, the SRS-Resource parameter can indicate the number of ports for antenna switching, the time domain resource allocation for antenna switching, and / or the frequency domain resource allocation for antenna switching.

[0125] For example, for a 1T2R UE configuration, no more than two SRS resource sets with different "resourceType" values ​​(e.g., aperiodic (AP), semi-persistent (SP), and / or periodic (P)) can be configured, for example, via the SRS-RescoureSet parameter and the SRS-Resource parameter. Furthermore, in each SRS-ResourceSet set, two SRS resources are transmitted in different symbols, and each SRS resource in a given set consists of a single SRS port. Thus, SRS port 0 of the first SRS resource can be associated with UE antenna port 0, and SRS port 0 of the second SRS resource can be associated with UE antenna port 1.

[0126] As another example, for a 2T4R UE configuration, no more than two SRS resource sets with different "resourceType" values ​​(e.g., AP, SP, and / or P) may be configured, for example, via an SRS-RescoureSet parameter and an SRS-Resource parameter. Furthermore, in each SRS-ResourceSet set, two SRS resources are transmitted in different symbols, and each SRS resource in a given set consists of two SRS ports. Thus, SRS port 0 of a first SRS resource may be associated with UE antenna port 0, SRS port 1 of a first SRS resource may be associated with UE antenna port 1, SRS port 0 of a second SRS resource may be associated with UE antenna port 2, and SRS port 1 of a second SRS resource may be associated with UE antenna port 3.

[0127] As another example, for a 1T4R UE configuration, the base station may configure no more than one SRS resource set with a "resourceType" set to periodic or semi-persistent, for example, via the SRS-RescoureSet parameter and the SRS-Resource parameter. Furthermore, four SRS resources are transmitted in different symbols, and each SRS resource consists of a single SRS port. Thus, SRS port 0 of the first SRS resource may be associated with UE antenna port 0, SRS port 0 of the second SRS resource may be associated with UE antenna port 1, SRS port 0 of the third SRS resource may be associated with UE antenna port 2, and SRS port 0 of the fourth SRS resource may be associated with UE antenna port 3.

[0128] As another example, for a 1T4R UE configuration, no more than two SRS resource sets with "resourceType" set to aperiodic may be configured, for example, via an SRS RescoureSet parameter and an SRS-Resource parameter. In addition, four SRS resources are transmitted in different symbols of two different time slots. The two SRS resource sets may each be configured to have two SRS resources, or one set may be configured to have one SRS resource and the other set may be configured to have three SRS resources. In addition, the UE may expect both sets to be configured with the same values ​​of higher layer parameters alpha, p0, pathlossReferenceRS, and srs-PowerControlAdjustmentStates. In addition, the UE may expect the value of the higher layer parameter aperiodicSRS-ResourceTrigger in each SRS-ResourceSet or the value of the entry in AperiodicSRS-ResourceTriggerList to be the same, and the value of the higher layer parameter slotOffset in each SRS-ResourceSet to be different.

[0129] The embodiments described herein provide systems, methods, and mechanisms for SRS antenna switching enhancement. For example, the embodiments described herein may support a base station configuring a UE via RRC signaling for SRS antenna switching for UE configurations including 4T8R, 2T8R, 2T6R, 1T6R, 1T8R, and / or 4T6R.

[0130] For example, in some embodiments, to support 4T8R UE configurations, a base station such as base station 102 may configure, via RRC signaling, no more than two SRS resource sets with different "resourceType" values ​​(e.g., aperiodic (AP), semi-persistent (SP), and / or periodic (P). In addition, in each SRS-ResourceSet set, two SRS resources may be transmitted in different symbols, and each SRS resource in a given set may include (and / or contain) four SRS ports.

[0131] As another example, in some embodiments, to support a 2T8R UE configuration, a base station such as base station 102 may configure, via RRC signaling, no more than one SRS resource set with a "resourceType" set to periodic or semi-persistent. Additionally, four SRS resources may be transmitted in different symbols, and each SRS resource may include (and / or contain) two SRS ports. Additionally, in some embodiments, to support a 2T8R UE configuration, a base station such as base station 102 may configure no more than two SRS resource sets with a "resourceType" set to aperiodic. Additionally, four SRS resources may be transmitted in different symbols of two different time slots. The two SRS resource sets may each be configured with two SRS resources, or one set may be configured with one SRS resource and the other set may be configured with three SRS resources. Furthermore, each SRS resource may include (and / or contain) two SRS ports. Furthermore, the UE may expect both sets to be configured with the same values ​​for higher-layer parameters alpha, p0, pathlossReferenceRS, and srs-PowerControlAdjustmentStates. Furthermore, the UE may expect the value of the higher layer parameter aperiodicSRS-ResourceTrigger in each SRS-ResourceSet or the value of the entry in AperiodicSRS-ResourceTriggerList to be the same and the value of the higher layer parameter slotOffset to be different in each SRS-ResourceSet.

[0132] As another example, in some embodiments, to support 2T6R UE configuration, a base station such as base station 102 may configure no more than one SRS resource set with a "resourceType" set to periodic or semi-persistent via RRC signaling. In addition, three SRS resources may be transmitted in different symbols, and each SRS resource may include (and / or contain) two SRS ports. In addition, in some embodiments, to support 2T6R UE configuration, a base station such as base station 102 may configure no more than two SRS resource sets with a "resourceType" set to aperiodic. In addition, three SRS resources may be transmitted in different symbols of two different time slots. The first SRS resource set may be configured to have two SRS resources, and the second SRS resource set may be configured to have one SRS resource. In addition, each SRS resource may include (and / or contain) two SRS ports. In addition, the UE may expect both sets to be configured with the same values ​​of higher layer parameters alpha, p0, pathlossReferenceRS, and srs-PowerControlAdjustmentStates. Furthermore, the UE may expect the value of the higher layer parameter aperiodicSRS-ResourceTrigger in each SRS-ResourceSet or the value of the entry in AperiodicSRS-ResourceTriggerList to be the same and the value of the higher layer parameter slotOffset to be different in each SRS-ResourceSet.

[0133] As another example, in some embodiments, to support 1T6R UE configuration, a base station such as base station 102 may configure no more than one SRS resource set with a "resourceType" set to periodic or semi-persistent via RRC signaling. In addition, six SRS resources may be transmitted in different symbols, and each SRS resource may include (and / or contain) one SRS port. In addition, in some embodiments, to support 1T6R UE configuration, a base station such as base station 102 may configure no more than two SRS resource sets with a "resourceType" set to aperiodic. In addition, the first SRS resource set may be configured to have a first number of SRS resources, each SRS resource including (and / or including) one SRS port, and the second SRS resource set may be configured to have a second number of SRS resources, each SRS resource including (and / or including) one SRS port. In some embodiments, the total number of SRS resources (e.g., the sum of the first number of SRS resources and the second number of SRS resources) may be equal to six. Furthermore, the UE may expect both sets to be configured with the same values ​​for the higher layer parameters alpha, p0, pathlossReferenceRS, and srs-PowerControlAdjustmentStates. Furthermore, the UE may expect the value of the higher layer parameter aperiodicSRS-ResourceTrigger or the value of the entry in AperiodicSRS-ResourceTriggerList in each SRS-ResourceSet to be the same, and the value of the higher layer parameter slotOffset in each SRS-ResourceSet to be different.

[0134] As another example, in some embodiments, to support 1T8R UE configuration, base station 102 may configure two or more SRS resource sets with a "resourceType" set to aperiodic via RRC signaling. For example, a first SRS resource set may be configured to have a first number of SRS resources, each of which includes (and / or contains) one SRS port, and a second SRS resource set may be configured to have a second number of SRS resources, each of which includes (and / or contains) one SRS port. The total number of SRS resources (e.g., the sum of the first number of SRS resources and the second number of SRS resources) may be equal to eight. As another example, a first SRS resource set may be configured to have a first number of SRS resources, each of which includes (and / or contains) one SRS port, a second SRS resource set may be configured to have a second number of SRS resources, each of which includes (and / or contains) one SRS port, and a third SRS resource set may be configured to have a third number of SRS resources, each of which includes (and / or contains) one SRS port. Thus, the total number of SRS resources (e.g., the sum of the first number of SRS resources, the second number of SRS resources, and the third number of SRS resources) can be equal to eight. As another example, the first SRS resource set can be configured to have a first number of SRS resources, each SRS resource including (and / or containing) 1 SRS port, the second SRS resource set can be configured to have a second number of SRS resources, each SRS resource including (and / or containing) 1 SRS port, the third SRS resource set can be configured to have a third number of SRS resources, each SRS resource including (and / or containing) 1 SRS port, and the fourth SRS resource set can be configured to have a fourth number of SRS resources, each SRS resource including (and / or containing) 1 SRS port. Thus, the total number of SRS resources (e.g., the sum of the first number of SRS resources, the second number of SRS resources, the third number of SRS resources, and the fourth number of SRS resources) can be equal to eight. Furthermore, the UE may expect both sets to be configured with the same values ​​for the higher layer parameters alpha, p0, pathlossReferenceRS, and srs-PowerControlAdjustmentStates. Furthermore, the UE may expect the value of the higher layer parameter aperiodicSRS-ResourceTrigger or the value of the entry in AperiodicSRS-ResourceTriggerList in each SRS-ResourceSet to be the same, and the value of the higher layer parameter slotOffset in each SRS-ResourceSet to be different.

[0135] Figure 7 A block diagram illustrating an example of a method for configuring sounding reference signal (SRS) antenna switching according to some embodiments is shown. Figure 7 The method shown can also be used with any of the systems, methods, or devices shown in the figure. In various embodiments, some of the method elements shown can be performed concurrently in an order different from the order shown, or can be omitted. Additional method elements can also be performed as needed. As shown, the method can be operated as follows.

[0136] At 702, a UE (such as UE 106) may transmit a capability message to a base station (such as base station 102) indicating an antenna configuration associated with SRS antenna switching. In some embodiments, the capability message may indicate support for at least one (and / or one or more) of a one transmit point (1T) and six receive point (6R) SRS resource set configuration, a 1T8R SRS resource set configuration, a 2T6R SRS resource set configuration, a 2T8R SRS resource set configuration, and / or a 4T8R SRS resource set configuration. In some embodiments, the capability message may be transmitted via higher layer signaling. In some embodiments, the higher layer signaling may include RRC signaling.

[0137] At 704, the UE may receive a configuration message from the base station. In some embodiments, the configuration message may indicate an SRS antenna switching configuration. In some embodiments, the SRS antenna switching configuration may be based at least in part on the capability message. In some embodiments, the configuration message may be received via higher layer signaling. In some embodiments, the higher layer signaling may include RRC signaling.

[0138] In some embodiments, the configuration message may indicate that at least one SRS resource set can be configured as a resource type having periodicity and / or semi-persistence. In some embodiments, when the capability message indicates a 1T6R SRS resource set configuration, the configuration message may indicate six SRS resources. In addition, when the capability message indicates a 1T6R SRS resource set configuration, the configuration message may indicate that each SRS resource may include one SRS port. In addition, when the capability message indicates a 1T6R SRS resource set configuration, the configuration message may indicate that the six SRS resources may be transmitted in different symbols. In some embodiments, when the capability message indicates a 2T6R SRS resource set configuration, the configuration message may indicate three SRS resources. In addition, when the capability message indicates a 2T6R SRS resource set configuration, the configuration message may indicate that each SRS resource includes two SRS ports. In addition, when the capability message indicates a 2T6R SRS resource set configuration, the configuration message may indicate that the three SRS resources may be transmitted in different symbols. In some embodiments, when the capability message indicates a 2T8R SRS resource set configuration, the configuration message may indicate four SRS resources. Additionally, when the capability message indicates a 2T8R SRS resource set configuration, the configuration message may indicate that each SRS resource may include two SRS ports. Additionally, when the capability message indicates a 2T8R SRS resource set configuration, the configuration message may indicate that the four SRS resources may be transmitted in different symbols.

[0139] In some embodiments, the configuration message may indicate that at least two SRS resource sets can be configured as having a non-periodic resource type. In some embodiments, when the capability message indicates a 1T6R SRS resource set configuration, the configuration message may indicate a first SRS resource set and a second SRS resource set. In addition, when the capability message indicates a 1T6R SRS resource set configuration, the configuration message may indicate that each SRS resource in the first SRS resource set may include one SRS port, and each SRS resource in the second SRS resource set may include one SRS port. In addition, when the capability message indicates a 1T6R SRS resource set configuration, the configuration message may indicate that a total of six SRS resources exist between the first SRS resource set and the second SRS resource set. In some embodiments, when the capability message indicates a 2T6R SRS resource set configuration, the configuration message may indicate a first SRS resource set and a second SRS resource set. In addition, when the capability message indicates a 2T6R SRS resource set configuration, the configuration message may indicate that each SRS resource in the first SRS resource set includes two SRS ports, and each SRS resource in the second SRS resource set includes two SRS ports. In addition, when the capability message indicates a 2T6R SRS resource set configuration, the configuration message may indicate a total of three SRS resources between the first SRS resource set and the second SRS resource set. In some embodiments, when the capability message indicates a 2T8R SRS resource set configuration, the configuration message may indicate the first SRS resource set and the second SRS resource set. In addition, when the capability message indicates a 2T8R SRS resource set configuration, the configuration message may indicate that each SRS resource in the first SRS resource set includes two SRS ports, and each SRS resource in the second SRS resource set includes two SRS ports. In addition, when the capability message indicates a 2T8R SRS resource set configuration, the configuration message may indicate a total of four SRS resources between the first SRS resource set and the second SRS resource set.

[0140] In some embodiments, the configuration message may indicate that at least three SRS resource sets are configured as having a non-periodic resource type. In some embodiments, when the capability message indicates a 1T6R SRS resource set configuration, the configuration message may indicate a first SRS resource set, a second SRS resource set, and a third SRS resource set. In addition, when the capability message indicates a 1T6R SRS resource set configuration, the configuration message may indicate that each SRS resource in the first SRS resource set includes an SRS port, each SRS resource in the second SRS resource set includes an SRS port, and each SRS resource in the third SRS resource set includes an SRS port. In addition, when the capability message indicates a 1T6R SRS resource set configuration, the configuration message may indicate a total of six SRS resources between the first SRS resource set, the second SRS resource set, and the third SRS resource set.

[0141] In some embodiments, when the capability message indicates a 4T8R SRS resource set configuration, the configuration message may indicate that up to two SRS resource sets are configured with different resource types, where the resource types include periodic, semi-persistent, or aperiodic. In some embodiments, the configuration message may indicate that each SRS resource set includes four SRS ports.

[0142] In some embodiments, when the capability message indicates a 1T8R SRS resource set configuration, the configuration message may indicate that more than two SRS resource sets are configured as having a non-periodic resource type. In some embodiments, the configuration message may indicate at least a first SRS resource set and a second SRS resource set. Additionally, the configuration message may indicate that each SRS resource in the first SRS resource set includes one SRS port and each SRS resource in the second SRS resource set includes one SRS port. Furthermore, the configuration message may indicate a total of eight SRS resources between the first SRS resource set and the second SRS resource set.

[0143] In some embodiments, when the capability message indicates a 1T8R SRS resource set configuration, the configuration message may indicate at least a first SRS resource set, a second SRS resource set, and a third SRS resource set. Furthermore, the configuration message may indicate that each SRS resource in the first SRS resource set includes one SRS port, each SRS resource in the second SRS resource set includes one SRS port, and each SRS resource in the third SRS resource set includes one SRS port. Furthermore, the configuration message may indicate a total of eight SRS resources between the first SRS resource set, the second SRS resource set, and the third SRS resource set.

[0144] In some embodiments, when the capability message indicates a 1T8R SRS resource set configuration, the configuration message may indicate at least a first SRS resource set, a second SRS resource set, a third SRS resource set, and a fourth SRS resource set. Additionally, the configuration message may indicate that each SRS resource in the first SRS resource set includes one SRS port, each SRS resource in the second SRS resource set includes one SRS port, each SRS resource in the third SRS resource set includes one SRS port, and each SRS resource in the fourth SRS resource set includes one SRS port. Furthermore, the configuration message may indicate a total of eight SRS resources between the first SRS resource set, the second SRS resource set, the third SRS resource set, and the fourth SRS resource set.

[0145] The UE may transmit one or more SRSs to the base station at 706. In some implementations, the one or more SRSs may be transmitted according to an SRS antenna switching configuration.

[0146] Figure 8 A block diagram illustrating another example of a method for configuring sounding reference signal (SRS) antenna switching according to some embodiments is shown. Figure 8 The method shown in the figure can also be used with any of the systems, methods or devices shown in the figure. In various embodiments, some of the method elements shown can be performed concurrently in an order different from the order shown, or can be omitted. Additional method elements can also be performed as needed. As shown in the figure, the method can be operated as follows.

[0147] At 802, a base station, such as base station 102, may receive a capability message from a UE, such as UE 106, indicating an antenna configuration associated with SRS antenna switching. In some embodiments, the capability message may indicate at least one (and / or one or more) of a one transmit point (1T) and six receive point (6R) SRS resource set configuration, a 1T8R SRS resource set configuration, a 2T6R SRS resource set configuration, a 2T8R SRS resource set configuration, and / or a 4T8R SRS resource set configuration. In some embodiments, the capability message may be received via higher layer signaling. In some embodiments, the higher layer signaling may include RRC signaling.

[0148] At 804, the base station may transmit a configuration message to the UE. In some embodiments, the configuration message may indicate an SRS antenna switching configuration. In some embodiments, the SRS antenna switching configuration may be based at least in part on the capability message. In some embodiments, the configuration message may be transmitted via higher layer signaling. In some embodiments, the higher layer signaling may include RRC signaling.

[0149] In some embodiments, the configuration message may indicate that at least one SRS resource set can be configured as a resource type having periodicity and / or semi-persistence. In some embodiments, when the capability message indicates a 1T6R SRS resource set configuration, the configuration message may indicate six SRS resources. In addition, when the capability message indicates a 1T6R SRS resource set configuration, the configuration message may indicate that each SRS resource may include one SRS port. In addition, when the capability message indicates a 1T6R SRS resource set configuration, the configuration message may indicate that the six SRS resources may be transmitted in different symbols. In some embodiments, when the capability message indicates a 2T6R SRS resource set configuration, the configuration message may indicate three SRS resources. In addition, when the capability message indicates a 2T6R SRS resource set configuration, the configuration message may indicate that each SRS resource includes two SRS ports. In addition, when the capability message indicates a 2T6R SRS resource set configuration, the configuration message may indicate that the three SRS resources may be transmitted in different symbols. In some embodiments, when the capability message indicates a 2T8R SRS resource set configuration, the configuration message may indicate four SRS resources. Additionally, when the capability message indicates a 2T8R SRS resource set configuration, the configuration message may indicate that each SRS resource may include two SRS ports. Additionally, when the capability message indicates a 2T8R SRS resource set configuration, the configuration message may indicate that the four SRS resources may be transmitted in different symbols.

[0150] In some embodiments, the configuration message may indicate that at least two SRS resource sets can be configured as having a non-periodic resource type. In some embodiments, when the capability message indicates a 1T6R SRS resource set configuration, the configuration message may indicate a first SRS resource set and a second SRS resource set. In addition, when the capability message indicates a 1T6R SRS resource set configuration, the configuration message may indicate that each SRS resource in the first SRS resource set may include one SRS port, and each SRS resource in the second SRS resource set may include one SRS port. In addition, when the capability message indicates a 1T6R SRS resource set configuration, the configuration message may indicate that a total of six SRS resources exist between the first SRS resource set and the second SRS resource set. In some embodiments, when the capability message indicates a 2T6R SRS resource set configuration, the configuration message may indicate a first SRS resource set and a second SRS resource set. In addition, when the capability message indicates a 2T6R SRS resource set configuration, the configuration message may indicate that each SRS resource in the first SRS resource set includes two SRS ports, and each SRS resource in the second SRS resource set includes one SRS port. In addition, when the capability message indicates a 2T6R SRS resource set configuration, the configuration message may indicate a total of three SRS resources between the first SRS resource set and the second SRS resource set. In some embodiments, when the capability message indicates a 2T8R SRS resource set configuration, the configuration message may indicate the first SRS resource set and the second SRS resource set. In addition, when the capability message indicates a 2T8R SRS resource set configuration, the configuration message may indicate that each SRS resource in the first SRS resource set includes two SRS ports, and each SRS resource in the second SRS resource set includes two SRS ports. In addition, when the capability message indicates a 2T8R SRS resource set configuration, the configuration message may indicate a total of four SRS resources between the first SRS resource set and the second SRS resource set.

[0151] In some embodiments, the configuration message may indicate that at least three SRS resource sets are configured as having a non-periodic resource type. In some embodiments, when the capability message indicates a 1T6R SRS resource set configuration, the configuration message may indicate a first SRS resource set, a second SRS resource set, and a third SRS resource set. In addition, when the capability message indicates a 1T6R SRS resource set configuration, the configuration message may indicate that each SRS resource in the first SRS resource set includes an SRS port, each SRS resource in the second SRS resource set includes an SRS port, and each SRS resource in the third SRS resource set includes an SRS port. In addition, when the capability message indicates a 1T6R SRS resource set configuration, the configuration message may indicate a total of six SRS resources between the first SRS resource set, the second SRS resource set, and the third SRS resource set.

[0152] In some embodiments, when the capability message indicates a 4T8R SRS resource set configuration, the configuration message may indicate that up to two SRS resource sets are configured with different resource types, where the resource types include periodic, semi-persistent, or aperiodic. In some embodiments, the configuration message may indicate that each SRS resource set includes four SRS ports.

[0153] In some embodiments, when the capability message indicates a 1T8R SRS resource set configuration, the configuration message may indicate that more than two SRS resource sets are configured as having a non-periodic resource type. In some embodiments, the configuration message may indicate at least a first SRS resource set and a second SRS resource set. In addition, the configuration message may indicate that each SRS resource in the first SRS resource set includes one SRS port and each SRS resource in the second SRS resource set includes one SRS port. Furthermore, the configuration message may indicate a total of eight SRS resources between the first SRS resource set and the second SRS resource set.

[0154] In some embodiments, when the capability message indicates a 1T8R SRS resource set configuration, the configuration message may indicate at least a first SRS resource set, a second SRS resource set, and a third SRS resource set. Furthermore, the configuration message may indicate that each SRS resource in the first SRS resource set includes one SRS port, each SRS resource in the second SRS resource set includes one SRS port, and each SRS resource in the third SRS resource set includes one SRS port. Furthermore, the configuration message may indicate a total of eight SRS resources between the first SRS resource set, the second SRS resource set, and the third SRS resource set.

[0155] In some embodiments, when the capability message indicates a 1T8R SRS resource set configuration, the configuration message may indicate at least a first SRS resource set, a second SRS resource set, a third SRS resource set, and a fourth SRS resource set. Additionally, the configuration message may indicate that each SRS resource in the first SRS resource set includes one SRS port, each SRS resource in the second SRS resource set includes one SRS port, each SRS resource in the third SRS resource set includes one SRS port, and each SRS resource in the fourth SRS resource set includes one SRS port. Furthermore, the configuration message may indicate a total of eight SRS resources between the first SRS resource set, the second SRS resource set, the third SRS resource set, and the fourth SRS resource set.

[0156] At 806, the base station may receive one or more SRSs from the UE. In some implementations, the one or more SRSs may be received according to an SRS antenna switching configuration.

[0157] It is understood that the use of personally identifiable information should be subject to privacy policies and practices that are generally recognized to meet or exceed industry or government requirements for maintaining user privacy. Specifically, personally identifiable information data should be managed and processed to minimize the risk of unintentional or unauthorized access or use, and the nature of authorized use should be clearly stated to users.

[0158] The embodiments of the present disclosure may be implemented in any of a variety of forms. For example, some embodiments may be implemented as computer-implemented methods, computer-readable storage media, or computer systems. Other embodiments may be implemented using one or more custom-designed hardware devices such as ASICs. Other embodiments may be implemented using one or more programmable hardware elements such as FPGAs.

[0159] In some embodiments, a non-transitory computer-readable storage medium may be configured such that it stores program instructions and / or data, wherein the program instructions, if executed by a computer system, cause the computer system to perform a method, such as any one of the method embodiments described herein, or any combination of the method embodiments described herein, or any subset of any of the method embodiments described herein or any combination of such subsets.

[0160] In some embodiments, a device (e.g., UE 106) may be configured to include a processor (or a group of processors) and a memory medium, wherein the memory medium stores program instructions, wherein the processor is configured to read and execute the program instructions from the memory medium, wherein the program instructions are executable to implement any of the various method embodiments described herein (or any combination of the method embodiments described herein, or any subset of any of the method embodiments described herein, or any combination of such subsets). The device may be implemented in any of various forms.

[0161] By interpreting each message / signal X received by a user equipment (UE) in the downlink as a message / signal X transmitted by the base station, and interpreting each message / signal Y transmitted by the UE in the uplink as a message / signal Y received by the base station, any of the methods for operating a UE described herein may become the basis for the corresponding method for operating a base station.

[0162] Although the above embodiments have been described in considerable detail, numerous variations and modifications will become apparent to those skilled in the art once the above disclosure is fully appreciated. It is intended that the following claims be interpreted to encompass all such variations and modifications.

Claims

1. A user equipment device UE, comprising: at least one antenna; a radio operatively coupled to the at least one antenna; as well as a processor operatively coupled to the radio; The processor is configured to cause the UE to: transmitting a capability message indicating an antenna configuration associated with sounding reference signal (SRS) antenna switching to a base station, wherein the capability message indicates at least one of a one transmission point and six reception point 1T 6R SRS resource set configuration, a 1T8R SRS resource set configuration, a 2T6R SRS resource set configuration, a 2T8R SRS resource set configuration, or a 4T8R SRS resource set configuration; receiving a configuration message from the base station, wherein the configuration message indicates an SRS antenna switching configuration, wherein the SRS antenna switching configuration is based at least in part on the capability message, wherein the configuration message indicates at least a first set of SRS resources, a second set of SRS resources, and a third set of SRS resources, wherein each SRS resource in the first set of SRS resources includes one SRS port, each SRS resource in the second set of SRS resources includes one SRS port, each SRS resource in the third set of SRS resources includes one SRS port, and wherein a total of eight SRS resources are indicated between the first set of SRS resources, the second set of SRS resources, and the third set of SRS resources; as well as One or more SRSs are transmitted to the base station according to the SRS antenna switching configuration.

2. The UE according to claim 1, When at least one SRS resource set is configured as a periodic or semi-persistent resource type and the capability message indicates a 1T6R SRS resource set configuration, the configuration message indicates six SRS resources, and each SRS resource includes an SRS port.

3. The UE according to claim 2, The six SRS resources are transmitted in different symbols.

4. The UE according to claim 1, When at least one SRS resource set is configured as a periodic or semi-persistent resource type and the capability message indicates a 2T6R SRS resource set configuration, the configuration message indicates three SRS resources, and each SRS resource includes two SRS ports.

5. The UE according to claim 4, The three SRS resources are transmitted in different symbols.

6. The UE according to claim 1, When at least one SRS resource set is configured as a periodic or semi-persistent resource type and the capability message indicates a 2T8R SRS resource set configuration, the configuration message indicates four SRS resources, and each SRS resource includes two SRS ports.

7. The UE according to claim 6, The four SRS resources are transmitted in different symbols.

8. The UE according to claim 1, Wherein, when at least two SRS resource sets are configured to have a non-periodic resource type and the capability message indicates a 1T6R SRS resource set configuration, the configuration message indicates a first SRS resource set and a second SRS resource set, wherein each SRS resource in the first SRS resource set includes an SRS port, and wherein each SRS resource in the second SRS resource set includes an SRS port.

9. The UE according to claim 8, A total of six SRS resources are indicated between the first SRS resource set and the second SRS resource set.

10. The UE according to claim 1, Wherein, when at least two SRS resource sets are configured to have a non-periodic resource type and the capability message indicates a 2T6R SRS resource set configuration, the configuration message indicates a first SRS resource set and a second SRS resource set, wherein each SRS resource in the first SRS resource set includes two SRS ports, and wherein each SRS resource in the second SRS resource set includes two SRS ports.

11. The UE according to claim 10, A total of three SRS resources are indicated between the first SRS resource set and the second SRS resource set.

12. A baseband processor of a user equipment device (UE) in a wireless communication system, wherein the baseband processor is configured to: generating an instruction to transmit a capability message to a base station via higher layer signaling, the capability message indicating an antenna configuration associated with sounding reference signal (SRS) antenna switching, wherein the capability message indicates at least one of a one transmission point and six reception points 1T6R SRS resource set configuration, a 1T8R SRS resource set configuration, a 2T6R SRS resource set configuration, a 2T8R SRS resource set configuration, or a 4T8R SRS resource set configuration; generating instructions to receive a configuration message from the base station via higher layer signaling, wherein the configuration message indicates an SRS antenna switching configuration, wherein the SRS antenna switching configuration is based at least in part on the capability message, wherein the configuration message indicates at least a first set of SRS resources, a second set of SRS resources, and a third set of SRS resources, wherein each SRS resource in the first set of SRS resources includes one SRS port, each SRS resource in the second set of SRS resources includes one SRS port, each SRS resource in the third set of SRS resources includes one SRS port, and wherein a total of eight SRS resources are indicated between the first set of SRS resources, the second set of SRS resources, and the third set of SRS resources; as well as Instructions are generated to transmit one or more SRSs to the base station according to the SRS antenna switching configuration.

13. The baseband processor according to claim 12, Wherein, when at least three SRS resource sets are configured to have a non-periodic resource type and the capability message indicates a 1T6R SRS resource set configuration, the configuration message indicates a first SRS resource set, a second SRS resource set, and a third SRS resource set, wherein each SRS resource in the first SRS resource set includes an SRS port, wherein each SRS resource in the second SRS resource set includes an SRS port, and wherein each SRS resource in the third SRS resource set includes an SRS port.

14. The baseband processor according to claim 13, A total of six SRS resources are indicated between the first SRS resource set, the second SRS resource set, and the third SRS resource set.

15. The baseband processor according to claim 12, When at most two SRS resource sets are configured to have different resource types, wherein the resource types include periodic, semi-persistent, or aperiodic, the configuration message indicates that each SRS resource includes four SRS ports.

16. The baseband processor according to claim 15, The capability message indicates 4T8R SRS resource set configuration.

17. The baseband processor according to claim 12, Wherein, when more than two SRS resource sets are configured as having a non-periodic resource type, the configuration message indicates at least a first SRS resource set and a second SRS resource set, wherein each SRS resource in the first SRS resource set includes an SRS port, and wherein each SRS resource in the second SRS resource set includes an SRS port.

18. The baseband processor according to claim 17, A total of eight SRS resources are indicated between the first SRS resource set and the second SRS resource set.

19. The baseband processor according to claim 12, Wherein, when more than two SRS resource sets are configured as having a non-periodic resource type, the configuration message indicates at least a first SRS resource set, a second SRS resource set, and a third SRS resource set, wherein each SRS resource in the first SRS resource set includes an SRS port, wherein each SRS resource in the second SRS resource set includes an SRS port, and wherein each SRS resource in the third SRS resource set includes an SRS port.

20. The baseband processor according to claim 19, A total of eight SRS resources are indicated between the first SRS resource set, the second SRS resource set, and the third SRS resource set.

21. The baseband processor according to claim 12, Wherein, when more than two SRS resource sets are configured as having a non-periodic resource type, the configuration message indicates at least a first SRS resource set, a second SRS resource set, a third SRS resource set and a fourth SRS resource set, wherein each SRS resource in the first SRS resource set includes an SRS port, wherein each SRS resource in the second SRS resource set includes an SRS port, wherein each SRS resource in the third SRS resource set includes an SRS port, and wherein each SRS resource in the fourth SRS resource set includes an SRS port.

22. The baseband processor according to claim 21, A total of eight SRS resources are indicated between the first SRS resource set, the second SRS resource set, the third SRS resource set, and the fourth SRS resource set.

23. The baseband processor according to claim 12, When more than two SRS resource sets are configured as having a non-periodic resource type, the capability message indicates the 1T8R SRS resource set configuration.

24. A base station, comprising: Multiple antennas; a radio operatively coupled to the plurality of antennas; as well as a processor operatively coupled to the radio; The processor is further configured to cause the base station to: receiving, from a user equipment device (UE), a capability message indicating an antenna configuration associated with sounding reference signal (SRS) antenna switching, wherein the capability message indicates at least one of a one transmission point and six reception point 1T6R SRS resource set configuration, a 1T8R SRS resource set configuration, a 2T6R SRS resource set configuration, a 2T8R SRS resource set configuration, or a 4T8R SRS resource set configuration; transmitting a configuration message to the UE, wherein the configuration message indicates an SRS antenna switching configuration, wherein the SRS antenna switching configuration is based at least in part on the capability message, wherein the configuration message indicates at least a first set of SRS resources, a second set of SRS resources, and a third set of SRS resources, wherein each SRS resource in the first set of SRS resources includes one SRS port, each SRS resource in the second set of SRS resources includes one SRS port, each SRS resource in the third set of SRS resources includes one SRS port, and wherein a total of eight SRS resources are indicated between the first set of SRS resources, the second set of SRS resources, and the third set of SRS resources; as well as One or more SRSs are received from the UE according to the SRS antenna switching configuration.

25. The base station according to claim 24, When at least one SRS resource set is configured as a periodic or semi-persistent resource type and the capability message indicates a 1T6R SRS resource set configuration, the configuration message indicates six SRS resources, and each SRS resource includes an SRS port.

26. The base station according to claim 25, The six SRS resources are transmitted in different symbols.

27. The base station according to claim 24, When at least one SRS resource set is configured as a periodic or semi-persistent resource type and the capability message indicates a 2T6R SRS resource set configuration, the configuration message indicates three SRS resources, and each SRS resource includes two SRS ports.

28. The base station according to claim 27, The three SRS resources are transmitted in different symbols.

29. The base station according to claim 24, When at least one SRS resource set is configured as a periodic or semi-persistent resource type and the capability message indicates a 2T8R SRS resource set configuration, the configuration message indicates four SRS resources, and each SRS resource includes two SRS ports.

30. The base station according to claim 29, The four SRS resources are transmitted in different symbols.

31. The base station according to claim 24, Wherein, when at least two SRS resource sets are configured to have a non-periodic resource type and the capability message indicates a 1T6R SRS resource set configuration, the configuration message indicates a first SRS resource set and a second SRS resource set, wherein each SRS resource in the first SRS resource set includes an SRS port, and wherein each SRS resource in the second SRS resource set includes an SRS port.

32. The base station according to claim 31, A total of six SRS resources are indicated between the first SRS resource set and the second SRS resource set.

33. The base station according to claim 24, Wherein, when at least two SRS resource sets are configured to have a non-periodic resource type and the capability message indicates a 2T6R SRS resource set configuration, the configuration message indicates a first SRS resource set and a second SRS resource set, wherein each SRS resource in the first SRS resource set includes two SRS ports, and wherein each SRS resource in the second SRS resource set includes two SRS ports.

34. The base station according to claim 33, A total of three SRS resources are indicated between the first SRS resource set and the second SRS resource set.

35. The base station according to claim 24, Wherein, when at least two SRS resource sets are configured to have a non-periodic resource type and the capability message indicates a 2T8R SRS resource set configuration, the configuration message indicates a first SRS resource set and a second SRS resource set, wherein each SRS resource in the first SRS resource set includes two SRS ports, and wherein each SRS resource in the second SRS resource set includes two SRS ports.

36. The base station according to claim 35, A total of four SRS resources are indicated between the first SRS resource set and the second SRS resource set.

37. The base station according to claim 24, Wherein, when at least three SRS resource sets are configured to have a non-periodic resource type and the capability message indicates a 1T6R SRS resource set configuration, the configuration message indicates a first SRS resource set, a second SRS resource set, and a third SRS resource set, wherein each SRS resource in the first SRS resource set includes an SRS port, wherein each SRS resource in the second SRS resource set includes an SRS port, and wherein each SRS resource in the third SRS resource set includes an SRS port.

38. The base station according to claim 37, A total of six SRS resources are indicated between the first SRS resource set, the second SRS resource set, and the third SRS resource set.

39. The base station according to claim 24, When at most two SRS resource sets are configured to have different resource types, wherein the resource types include periodic, semi-persistent, or aperiodic, the configuration message indicates that each SRS resource set includes four SRS ports.

40. The base station according to claim 39, The capability message indicates 4T8R SRS resource set configuration.

41. The base station according to claim 40, No more than two SRS resource sets are configured as having a non-periodic resource type.

42. The base station according to claim 41, The configuration message indicates at least a first SRS resource set and a second SRS resource set, wherein each SRS resource in the first SRS resource set includes an SRS port, and wherein each SRS resource in the second SRS resource set includes an SRS port.

43. The base station according to claim 42, A total of eight SRS resources are indicated between the first SRS resource set and the second SRS resource set.

44. The base station according to claim 41, The configuration message indicates at least a first SRS resource set, a second SRS resource set and a third SRS resource set, wherein each SRS resource in the first SRS resource set includes an SRS port, wherein each SRS resource in the second SRS resource set includes an SRS port, and wherein each SRS resource in the third SRS resource set includes an SRS port.

45. The base station according to claim 44, A total of eight SRS resources are indicated between the first SRS resource set, the second SRS resource set, and the third SRS resource set.

46. ​​The base station according to claim 41, The configuration message indicates at least a first SRS resource set, a second SRS resource set, a third SRS resource set and a fourth SRS resource set, wherein each SRS resource in the first SRS resource set includes an SRS port, wherein each SRS resource in the second SRS resource set includes an SRS port, wherein each SRS resource in the third SRS resource set includes an SRS port, and wherein each SRS resource in the fourth SRS resource set includes an SRS port.

47. The base station according to claim 46, A total of eight SRS resources are indicated between the first SRS resource set, the second SRS resource set, the third SRS resource set, and the fourth SRS resource set.

48. The base station according to claim 41, The capability message indicates 1T8R SRS resource set configuration.

49. The base station according to claim 24, wherein the capability message is received radio resource control signaling; and The configuration message is transmitted via radio resource control signaling.

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