Sounding reference signal (SRS) frequency hopping for distributed antenna port mapping

Abstract

In general, various aspects of the present disclosure relate to wireless communications. In some aspects, a user equipment (UE) may receive configuration information indicating a set of sounding reference signal (SRS) resources including SRS resources associated with a plurality of antenna ports having a distributed mapping of a plurality of orthogonal frequency division multiplexing (OFDM) symbols to the SRS resources. The UE may transmit the plurality of SRSs on the plurality of antenna ports in the plurality of OFDM symbols of the SRS resource using a frequency hopping pattern that is a function of the count of the number of SRS transmissions, and the count of the number of SRS transmissions is scaled by the number of the plurality of OFDM symbols. Numerous other aspects are described.

Description

[0001] Cross-reference to related applications

[0002] This patent application claims priority to U.S. Provisional Patent Application No. 63 / 494,335, filed April 5, 2023, entitled "SOUNDING REFERENCE SIGNAL (SRS) FREQUENCY HOPPING FOR DISTRIBUTED ANTENNAPORT MAPPING," and U.S. Non-Provisional Patent Application No. 18 / 521,598, filed November 28, 2023, entitled "SOUNDING REFERENCE SIGNAL (SRS) FREQUENCY HOPPING FOR DISTRIBUTED ANTENNAPORT MAPPING," which are assigned to the assignee of this application. The disclosure of the earlier applications is considered part of this patent application and is incorporated herein by reference. Technical Field

[0003] In summary, various aspects of this disclosure relate to wireless communication and to techniques and apparatus for frequency hopping of probe reference signals (SRS) for distributed antenna port mapping. Background Technology

[0004] Wireless communication systems have been widely deployed to provide a variety of telecommunications services such as telephone, video, data, messaging, and broadcasting. Typical wireless communication systems employ multiple access technologies that enable communication with multiple users by sharing available system resources (e.g., bandwidth, transmit power, etc.). Examples of such multiple access technologies include Code Division Multiple Access (CDMA) systems, Time Division Multiple Access (TDMA) systems, Frequency Division Multiple Access (FDMA) systems, Orthogonal Frequency Division Multiple Access (OFDMA) systems, Single Carrier Frequency Division Multiple Access (SC-FDMA) systems, Time Division Synchronous Code Division Multiple Access (TD-SCDMA) systems, and Long Term Evolution (LTE). LTE / improved LTE is a collection of enhancements to the Universal Mobile Telecommunications System (UMTS) mobile standard issued by the 3rd Generation Partnership Project (3GPP).

[0005] A wireless network may include one or more network nodes that support communication for wireless communication devices such as one or more user equipments (UEs). UEs may communicate with network nodes via downlink and uplink communication. A "downlink" (or "DL") refers to the communication link from the network node to the UE, and an "uplink" (or "UL") refers to the communication link from the UE to the network node. Some wireless networks may support device-to-device communication, such as via local links (e.g., sidelinks (SL), wireless local area network (WLAN) links, and / or wireless personal area network (WPAN) links, and other examples).

[0006] The above multiple access technologies have been adopted in various telecommunications standards to provide a common protocol enabling different UEs to communicate across city, country, region, and / or global scales. New Radio (NR) (also known as 5G) is a collection of enhancements to the LTE mobile standard released by 3GPP. NR is designed to better support mobile broadband internet access by improving spectrum efficiency, reducing costs, enhancing service, fully utilizing new spectrum, and better integrating with other open standards using Orthogonal Frequency Division Multiplexing (OFDM) with Cyclic Prefix (CP) on the downlink, CP-OFDM and / or Single Carrier Frequency Division Multiplexing (SC-FDM) (also known as Discrete Fourier Transform Spread Spectrum OFDM (DFT-s-OFDM)) on the uplink, and supporting beamforming, multiple-input multiple-output (MIMO) antenna technologies and carrier aggregation. Further improvements to LTE, NR, and other radio access technologies remain effective as the demand for mobile broadband access continues to increase. Summary of the Invention

[0007] Some aspects described herein relate to an apparatus for wireless communication at a user equipment (UE). The apparatus may include a memory and one or more processors coupled to the memory. The one or more processors may be configured to: receive configuration information indicating a set of SRS resources including probe reference signal (SRS) resources associated with a plurality of antenna ports, the plurality of antenna ports having a distributed mapping to a plurality of orthogonal frequency division multiplexing (OFDM) symbols of the SRS resources. The one or more processors may be configured to: transmit a plurality of SRSs on the plurality of antenna ports in the plurality of OFDM symbols of the SRS resources using a frequency hopping mode that is a function of a count of the number of SRS transmissions, the count of the number of SRS transmissions being scaled by the number of the plurality of OFDM symbols.

[0008] Some aspects described herein relate to an apparatus for wireless communication at a network node. The apparatus may include a memory and one or more processors coupled to the memory. The one or more processors may be configured to: transmit configuration information indicating a set of SRS resources including SRS resources associated with a plurality of antenna ports, the plurality of antenna ports having a distributed mapping to a plurality of OFDM symbols of the SRS resources. The one or more processors may be configured to: receive a plurality of SRSs on the plurality of antenna ports in the plurality of OFDM symbols of the SRS resources using a frequency hopping mode that is a function of a count of the number of SRS transmissions, the count of the number of SRS transmissions being scaled by the number of the plurality of OFDM symbols.

[0009] Some aspects described herein relate to a method for wireless communication performed by a UE. The method may include: receiving configuration information indicating a set of SRS resources including SRS resources associated with a plurality of antenna ports, the plurality of antenna ports having a distributed mapping to a plurality of OFDM symbols of the SRS resources. The method may include: transmitting a plurality of SRSs on the plurality of antenna ports in the plurality of OFDM symbols of the SRS resources using a frequency hopping mode as a function of a count of the number of SRS transmissions, wherein the count of the number of SRS transmissions is scaled by the number of the plurality of OFDM symbols.

[0010] Some aspects described herein relate to a method for wireless communication performed by a network node. The method may include: transmitting configuration information indicating a set of SRS resources, including SRS resources associated with a plurality of antenna ports, and the plurality of antenna ports having a distributed mapping to a plurality of OFDM symbols of the SRS resources. The method may include: receiving a plurality of SRSs on the plurality of antenna ports in the plurality of OFDM symbols of the SRS resources using a frequency hopping mode as a function of a count of the number of SRS transmissions, wherein the count of the number of SRS transmissions is scaled by the number of the plurality of OFDM symbols.

[0011] Some aspects described herein relate to a non-transitory computer-readable medium storing a set of instructions for wireless communication by a UE. When executed by one or more processors of the UE, the set of instructions causes the UE to: receive configuration information indicating a set of SRS resources, the SRS resources being associated with a plurality of antenna ports, and the plurality of antenna ports having a distributed mapping to a plurality of OFDM symbols of the SRS resources. When executed by one or more processors of the UE, the set of instructions causes the UE to: transmit a plurality of SRSs on the plurality of antenna ports in the plurality of OFDM symbols of the SRS resources using a frequency hopping mode that is a function of a count of the number of SRS transmissions, and the count of the number of SRS transmissions is scaled by the number of the plurality of OFDM symbols.

[0012] Some aspects described herein relate to a non-transitory computer-readable medium storing a set of instructions for wireless communication by a network node. When executed by one or more processors of the network node, the set of instructions causes the network node to: transmit configuration information indicating a set of SRS resources including SRS resources associated with a plurality of antenna ports, the plurality of antenna ports having a distributed mapping to a plurality of OFDM symbols of the SRS resources. When executed by one or more processors of the network node, the set of instructions causes the network node to: receive a plurality of SRSs on the plurality of antenna ports in the plurality of OFDM symbols of the SRS resources using a frequency hopping mode that is a function of a count of the number of SRS transmissions, the count of the number of SRS transmissions being scaled by the number of the plurality of OFDM symbols.

[0013] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include: a unit for receiving configuration information indicating a set of SRS resources including SRS resources associated with a plurality of antenna ports, the plurality of antenna ports having a distributed mapping to a plurality of OFDM symbols of the SRS resources. The apparatus may include: a unit for transmitting a plurality of SRSs on the plurality of antenna ports in the plurality of OFDM symbols of the SRS resources using a frequency hopping mode as a function of a count of the number of SRS transmissions, the count of the number of SRS transmissions being scaled by the number of the plurality of OFDM symbols.

[0014] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include: a unit for transmitting configuration information indicating a set of SRS resources including SRS resources associated with a plurality of antenna ports, the plurality of antenna ports having a distributed mapping to a plurality of OFDM symbols of the SRS resources. The apparatus may include: a unit for receiving a plurality of SRSs on the plurality of antenna ports in the plurality of OFDM symbols of the SRS resources using a frequency hopping mode as a function of a count of the number of SRS transmissions, the count of the number of SRS transmissions being scaled by the number of the plurality of OFDM symbols.

[0015] In general, the aspects include methods, apparatus, systems, computer program products, non-transitory computer-readable media, user equipment, base stations, network entities, network nodes, wireless communication devices and / or processing systems as fully described herein with reference to the accompanying drawings and description and as shown by the accompanying drawings and description.

[0016] The foregoing has provided a fairly broad overview of the features and technical advantages of examples according to this disclosure in order to better understand the following detailed description. Additional features and advantages will be described below. The disclosed concepts and specific examples can be readily used as the basis for modifying or designing other structures for achieving the same purpose as this disclosure. Such equivalent constructions do not depart from the scope of the appended claims. The characteristics of the concepts disclosed herein (both their organization and manner of operation) and their associated advantages will be better understood when considered in conjunction with the accompanying drawings, based on the following description. Each drawing in the accompanying drawings is provided for illustrative and descriptive purposes and is not intended to define a limitation of the claims.

[0017] While aspects have been described herein by way of example, those skilled in the art will understand that such aspects can be implemented in many different arrangements and scenarios. The innovations described herein can be implemented using different platform types, devices, systems, shapes, sizes, and / or packaging arrangements. For example, some aspects can be implemented via integrated chip embodiments and other devices based on non-modular components (e.g., end-user devices, vehicles, communication devices, computing devices, industrial devices, retail / purchasing devices, medical devices, and / or artificial intelligence devices). Aspects can be implemented in chip-level components, modular components, non-modular components, non-chip-level components, device-level components, and / or system-level components. Devices incorporating the described aspects and features may include additional components and features for the implementation and enforcement of the claimed and described aspects. For example, the transmission and reception of wireless signals may include one or more components for analog and digital purposes (e.g., hardware components including antennas, radio frequency (RF) chains, power amplifiers, modulators, buffers, processors, interleavers, adders, and / or summers). The innovations described herein are intended to be implemented in a variety of devices, components, systems, distributed arrangements, and / or end-user devices with different sizes, shapes, and configurations. Attached Figure Description

[0018] To provide a detailed understanding of the features described above in this disclosure, this application provides a more specific description of some aspects with reference to the above brief summary, some of which are illustrated in the accompanying drawings. However, it should be noted that since the specification allows for other equivalent and effective aspects, these drawings merely depict certain typical aspects of this disclosure and should not be considered as limiting the scope of protection of the invention. The same reference numerals in different drawings may identify the same or similar elements.

[0019] Figure 1 This is a diagram illustrating an example of a wireless network according to this disclosure.

[0020] Figure 2 This is a diagram illustrating an example of a network node communicating with a user equipment (UE) in a wireless network according to this disclosure.

[0021] Figure 3 This is a diagram illustrating an example decomposed base station architecture according to this disclosure.

[0022] Figure 4 This is a diagram illustrating an example of physical channels and reference signals in a wireless network according to this disclosure.

[0023] Figure 5 This is a diagram illustrating an example of a collection of probe reference signals (SRS) resources according to this disclosure.

[0024] Figure 6 This is a diagram illustrating an example of SRS frequency hopping according to this disclosure.

[0025] Figure 7 This is a diagram illustrating an example of SRS frequency hopping associated with distributed antenna port mapping, based on the present disclosure.

[0026] Figure 8 This is a diagram illustrating an example of SRS frequency hopping associated with distributed antenna port mapping according to this disclosure.

[0027] Figure 9 This is a diagram illustrating an example of SRS frequency hopping associated with distributed antenna port mapping according to this disclosure.

[0028] Figure 10 This is a diagram illustrating an example of SRS frequency hopping associated with distributed antenna port mapping according to this disclosure.

[0029] Figure 11 This is a diagram illustrating an example of SRS frequency hopping associated with distributed antenna port mapping according to this disclosure.

[0030] Figure 12 This is a diagram illustrating an example of SRS frequency hopping associated with distributed antenna port mapping according to this disclosure.

[0031] Figure 13 This is a diagram illustrating an example of SRS frequency hopping associated with distributed antenna port mapping according to this disclosure.

[0032] Figure 14 This is a diagram illustrating an example process performed by a UE, for example, according to this disclosure.

[0033] Figure 15 This is a diagram illustrating an example process performed by a network node, for example, according to this disclosure.

[0034] Figure 16 This is a diagram of an example device for wireless communication based on the present disclosure.

[0035] Figure 17 This is a diagram of an example device for wireless communication based on the present disclosure. Detailed Implementation

[0036] User equipment (UE) can be configured with sounding reference signal (SRS) resources associated with one or more antenna ports. SRS transmission can use frequency hopping that utilizes sub-band SRS to scan a large bandwidth across multiple orthogonal frequency division multiplexing (OFDM) symbols. In conventional operation, antenna ports can be sounded simultaneously within a single OFDM symbol. Therefore, in frequency hopping, all antenna ports used for SRS transmission hop together. However, in some examples, multiple antenna ports (e.g., eight antenna ports) may have a distributed mapping to multiple OFDM symbols (e.g., two, four, or eight OFDM symbols). Here, a single OFDM symbol is mapped to only a subset of the multiple antenna ports. Therefore, frequency hopping on a per-symbol basis will result in sounding fewer than all antenna ports in each hop. As a result, the UE's SRS transmission may be less robust, affecting uplink channel estimation for measurements using SRS transmission, link adaptation, precoder selection, beam management, and other examples.

[0037] Some of the techniques and apparatus described herein implement frequency hopping for SRS transmission on antenna ports having a distributed mapping to multiple OFDM symbols of an SRS resource. The frequency hopping mode for frequency hopping can be determined based on a count of the number of SRS transmissions that have occurred. In some aspects, the UE can transmit SRS on multiple antenna ports across multiple OFDM symbols of the SRS resource in a single frequency hop of the frequency hopping mode (e.g., according to the distributed mapping). This can be achieved by treating multiple OFDM symbols as a single OFDM symbol (e.g., a single cell) in conjunction with counting the SRS transmissions. Furthermore, for SRS repetitions in the SRS resource, the UE can transmit SRS on multiple antenna ports across a first plurality of OFDM symbols of the SRS resource in a single frequency hop of the frequency hopping mode (e.g., according to the distributed mapping), and transmit one or more repetitions of SRS on multiple antenna ports across a second plurality of OFDM symbols of the SRS resource (e.g., according to the distributed mapping). This can be achieved by treating the first plurality of OFDM symbols and the second plurality of OFDM symbols as a single OFDM symbol (e.g., a single cell) in conjunction with counting the SRS transmissions.

[0038] In this way, SRS transmissions can be performed on all multiple antenna ports at each frequency hop. Therefore, SRS transmissions are distinct in the time and frequency domains, thereby improving uplink channel estimation for measurements using SRS transmissions for scheduling, link adaptation, precoder selection, beam management, and other examples.

[0039] The various aspects of this disclosure are described more fully below with reference to the accompanying drawings. However, this disclosure may be implemented in many different forms and should not be construed as limited to any particular structure or function given throughout this disclosure. Rather, these aspects are provided only to make this disclosure thorough and complete and to fully convey the scope of protection of this disclosure to those skilled in the art. It should be understood by those skilled in the art that the scope of this disclosure is intended to cover any aspect of the disclosure herein, whether implemented independently or in combination with any other aspect of this disclosure. For example, an apparatus or method may be implemented using any number of the aspects set forth herein. Furthermore, the scope of this disclosure is intended to cover such apparatus or methods that may be implemented using other structures, functions, or structures and functions other than those of the aspects of this disclosure set forth herein, or structures and functions different from those of the aspects of this disclosure set forth herein. It should be understood that any aspect of the disclosure herein may be embodied by one or more elements of the claims.

[0040] Various devices and techniques will now be described with reference to some aspects of a telecommunications system. These devices and techniques will be described in the following detailed embodiments and depicted in the accompanying drawings by various blocks, modules, components, circuits, steps, processes, algorithms, etc. (collectively referred to as “elements”). These elements can be implemented using hardware, software, or any combination thereof. Whether these elements are implemented as hardware or software depends on the specific application and the design constraints imposed on the overall system.

[0041] While this document uses terms commonly associated with 5G or New Radio (NR) Radio Access Technology (RAT) to describe its aspects, the aspects of this disclosure may also be applied to other RATs (e.g., 3G RAT, 4G RAT and / or RATs after 5G (e.g., 6G)).

[0042] Figure 1This is a diagram illustrating an example of a wireless network 100 according to this disclosure. The wireless network 100 may be a 5G (e.g., NR) network and / or a 4G network (e.g., Long Term Evolution (LTE)), etc., or may include elements of a 5G (e.g., NR) network and / or a 4G network (e.g., Long Term Evolution (LTE)), etc. The wireless network 100 may include one or more network nodes 110 (shown as network nodes 110a, 110b, 110c, and 110d), one or more UEs 120 (shown as UE 120a, UE 120b, UE 120c, UE 120d, and UE 120e), and / or other entities. Network node 110 is a network node that communicates with UE 120. As shown, network node 110 may include one or more network nodes. For example, network node 110 can be an aggregated network node, meaning that an aggregated network node is configured to utilize a radio protocol stack that is physically or locally integrated within a single radio access network (RAN) node (e.g., within a single device or unit). As another example, network node 110 can be a decomposed network node (sometimes referred to as a decomposed base station), meaning that network node 110 is configured to utilize a protocol stack that is physically or locally distributed across two or more nodes (e.g., one or more central units (CUs), one or more distributed units (DUs), or one or more radio units (RUs)).

[0043] In some examples, network node 110 is or includes network nodes that communicate with UE 120 via a radio access link (such as RU). In some examples, network node 110 is or includes network nodes that communicate with other network nodes 110 via a fronthaul link or a midhaul link (such as DU). In some examples, network node 110 is or includes network nodes that communicate with other network nodes 110 via a midhaul link or with the core network via a backhaul link (such as CU). In some examples, network node 110 (such as aggregated network node 110 or decomposed network node 110) may include multiple network nodes, such as one or more RUs, one or more CUs, and / or one or more DUs. Network node 110 may include, for example, NR base stations, LTE base stations, Node Bs, eNBs (e.g., in 4G), gNBs (e.g., in 5G), access points, Transmit / Receive Points (TRPs), DUs, RUs, CUs, network mobility elements, core network nodes, network elements, network equipment, RAN nodes, or combinations thereof. In some examples, network nodes 110 can use any suitable transport network to interconnect with each other or to one or more other network nodes 110 in the wireless network 100 via various types of front-end, mid-end, and / or back-end interfaces (e.g., direct physical connection, air interface, or virtual network).

[0044] In some examples, network node 110 can provide communication coverage for a specific geographic area. In the 3rd Generation Partnership Project (3GPP), the term "cell" can refer to the coverage area of ​​network node 110 and / or the network node subsystem serving that coverage area, depending on the context in which the term is used. Network node 110 can provide communication coverage for macrocells, picocells, femtocells, and / or another type of cell. A macrocell can cover a relatively large geographic area (e.g., with a radius of several kilometers) and can allow unrestricted access for UE 120 with a service subscription. A picocell can cover a relatively small geographic area and can allow unrestricted access for UE 120 with a service subscription. A femtocell can cover a relatively small geographic area (e.g., a residential area) and can allow restricted access for UE 120 associated with a femtocell (e.g., UE 120 in a Closed User Group (CSG)). Network node 110 used for macrocells can be referred to as a macro network node. Network node 110 used for picocells can be referred to as a pico network node. The network node 110 used in a femtocell can be referred to as a femtocell network node or a home network node. Figure 1 In the example shown, network node 110a can be a macro network node for macro cell 102a, network node 110b can be a pico network node for pico cell 102b, and network node 110c can be a femto network node for femto cell 102c. Network nodes can support one or more (e.g., three) cells. In some examples, the cells may not necessarily be stationary, and the geographical area of ​​the cell can move depending on the location of a mobile network node 110 (e.g., a mobile network node).

[0045] In some aspects, the term "base station" or "network node" can refer to an aggregated base station, a decomposed base station, an integrated access and backhaul (IAB) node, a relay node, or one or more components thereof. For example, in some aspects, "base station" or "network node" can refer to a CU, DU, RU, a near real-time (near RT) RAN intelligent controller (RIC), or a non-real-time (non-RT) RIC, or a combination thereof. In some aspects, the term "base station" or "network node" can refer to a device configured to perform one or more functions (such as those described herein in conjunction with network node 110). In some aspects, the term "base station" or "network node" can refer to multiple devices configured to perform one or more functions. For example, in some distributed systems, each of multiple different devices (which may be located in the same geographical location or different geographical locations) can be configured to perform at least a portion of the functions, or to replicate the performance of at least a portion of the functions, and the term "base station" or "network node" can refer to any one or more of those different devices. In some aspects, the term "base station" or "network node" can refer to one or more virtual base stations or one or more virtual base station functions. For example, in some aspects, two or more base station functions can be instantiated on a single device. In some aspects, the term "base station" or "network node" may refer to one base station function rather than another. In this way, a single device can include more than one base station.

[0046] As used herein, "outputting" or "transmitting" communication from network node 110 to UE 120 can refer to direct transmission (e.g., from network node 110 to UE 120) or indirect transmission via one or more other network nodes or devices. For example, if network node 110 is a DU, indirect transmission to UE 120 could include the DU outputting or transmitting communication to an RU and the RU transmitting communication to UE 120, or it could include causing the RU to transmit communication (e.g., triggering the transmission of a physical layer reference signal). Similarly, "transmitting" communication from UE 120 to network node 110 can refer to direct transmission (e.g., from UE 120 to network node 110) or indirect transmission via one or more other network nodes or devices. For example, if network node 110 is a DU, indirect transmission to network node 110 could include UE 120 transmitting communication to an RU and the RU transmitting communication to the DU. Similarly, network node 110 “receiving” communication can refer to directly receiving a transmission carrying communication (e.g., from UE 120 to network node 110) or receiving communication (or information deduced from receiving communication) via one or more other network nodes or devices.

[0047] Wireless network 100 may include one or more relay stations. A relay station is a network node that can receive data transmissions from an upstream node (e.g., network node 110 or UE 120) and transmit those data to a downstream node (e.g., UE 120 or network node 110). A relay station may be a UE 120 capable of relaying transmissions from other UEs 120. Figure 1 In the example shown, network node 110d (e.g., a relay network node) can communicate with network node 110a (e.g., a macro network node) and UE 120d to facilitate communication between network node 110a and UE 120d. The network node 110, used for relay communication, can be referred to as a relay station, relay base station, relay network node, relay node, repeater, etc.

[0048] Wireless network 100 can be a heterogeneous network comprising different types of network nodes 110 (e.g., macro nodes, pico nodes, femto nodes, relay nodes, etc.). These different types of network nodes 110 may have different transmit power levels, different coverage areas, and / or different effects on interference in wireless network 100. For example, macro nodes may have higher transmit power levels (e.g., 5 to 40 watts), while pico nodes, femto nodes, and relay nodes may have lower transmit power levels (e.g., 0.1 to 2 watts).

[0049] Network controller 130 may be coupled to or communicate with a set of network nodes 110, and provide coordination and control for these network nodes 110. Network controller 130 may communicate with network nodes 110 via a backhaul or mid-range communication link. Network nodes 110 may also communicate directly with each other, or indirectly via a wireless or wired backhaul communication link. In some aspects, network controller 130 may be a CU or a core network device, or may include a CU or a core network device.

[0050] UE 120 may be distributed throughout the wireless network 100, and each UE 120 may be stationary or mobile. UE 120 may include, for example, access terminals, terminals, mobile stations, and / or user units. UE 120 may be a cellular phone (e.g., a smartphone), a personal digital assistant (PDA), a wireless modem, a wireless communication device, a handheld device, a laptop computer, a cordless phone, a wireless local loop (WLL) station, a tablet device, a camera, a gaming device, a netbook, a smartbook, an ultrabook, a medical device, a biometric authentication device, a wearable device (e.g., a smartwatch, smart clothing, smart glasses, a smart wristband, smart jewelry (e.g., a smart ring or smart bracelet)), an entertainment device (e.g., a music device, a video device, and / or a satellite radio device), an in-vehicle component or sensor, a smart meter / sensor, industrial manufacturing equipment, a GPS device, a UE functional unit of a network node, and / or any other suitable device configured to communicate via wireless or wired media.

[0051] Some UEs 120 can be viewed as machine-type communication (MTC) UEs or evolved or enhanced machine-type communication (eMTC) UEs. For example, MTC UEs and / or eMTC UEs may include robots, drones, remote devices, sensors, meters, monitors, and / or location tags capable of communicating with network nodes, another device (e.g., remote devices), or some other entity. Some UEs 120 can be considered Internet of Things (IoT) devices, and / or may be implemented as NB-IoT (Narrowband IoT) devices. Some UEs 120 can be considered customer premises devices. UEs 120 may be included in a housing that houses the components of the UE 120 (e.g., processor components and / or memory components). In some examples, the processor components and memory components may be coupled together. For example, the processor components (e.g., one or more processors) and memory components (e.g., memory) may be operatively coupled, communicatively coupled, electrically coupled, and / or electronically coupled.

[0052] Typically, any number of wireless networks 100 can be deployed within a given geographical area. Each wireless network 100 can support a specific RAT and can operate on one or more frequencies. A RAT can be referred to as a radio technology, air interface, etc. A frequency can be referred to as a carrier, frequency channel, etc. Each frequency can support a single RAT within a given geographical area to avoid interference between wireless networks using different RATs. In some cases, NR or 5G RAT networks can be deployed.

[0053] In some examples, two or more UEs 120 (e.g., shown as UE 120a and UE 120e) may communicate directly using one or more sidelink channels (e.g., without using network node 110 as an intermediary device). For example, UE 120 may communicate using peer-to-peer (P2P) communication, device-to-device (D2D) communication, vehicle-to-everything (V2X) protocols (e.g., which may include vehicle-to-vehicle (V2V), vehicle-to-infrastructure (V2I), or vehicle-to-pedestrian (V2P) protocols) and / or mesh networks. In such examples, UE 120 may perform scheduling operations, resource selection operations, and / or other operations described elsewhere herein that are performed by network node 110.

[0054] Devices in Wireless Network 100 can communicate using the electromagnetic spectrum, which can be subdivided into various categories, bands, channels, etc., by frequency or wavelength. For example, devices in Wireless Network 100 can communicate using one or more operating frequency bands. In 5G NR, two initial operating frequency bands have been identified as the frequency range names FR1 (410MHz–7.125GHz) and FR2 (24.25GHz–52.6GHz). It should be understood that although a portion of FR1 is greater than 6GHz, FR1 is often (interchangeably) referred to as the “below 6GHz” band in various documents and articles. Similar naming issues sometimes arise regarding FR2; although it differs from the extremely high frequency (EHF) band (30GHz–300GHz), it is often (interchangeably) referred to as the “millimeter wave” band in documents and articles, while the EHF band is identified as the “millimeter wave” band by the International Telecommunication Union (ITU).

[0055] The frequencies between FR1 and FR2 are generally referred to as mid-band frequencies. Recent 5G NR studies have identified the operating bands for these mid-band frequencies as the frequency range name FR3 (7.125GHz–24.25GHz). Bands falling within FR3 can inherit FR1 and / or FR2 characteristics, and thus can effectively extend the features of FR1 and / or FR2 to mid-band frequencies. Furthermore, higher frequency bands are currently being explored to extend 5G NR operation beyond 52.6GHz. For example, three higher operating frequency bands have been identified as the frequency range names FR4a or FR4–1 (52.6GHz–71GHz), FR4 (52.6GHz–114.25GHz), and FR5 (114.25GHz–300GHz). Each of these higher frequency bands falls within the EHF band.

[0056] Considering the examples above, unless otherwise specifically stated, it should be understood that when the term "below 6 GHz" is used herein, it can broadly refer to frequencies that are less than 6 GHz, within FR1, or may include intermediate frequency band frequencies. Furthermore, unless otherwise specifically stated, it should be understood that when the term "millimeter wave" is used herein, it can broadly refer to frequencies that may include intermediate frequency band frequencies, within FR2, FR4, FR4-a, or FR4-1 and / or FR5, or within the EHF band. It is anticipated that the frequencies included in these operating frequency bands (e.g., FR1, FR2, FR3, FR4, FR4-a, FR4-1, and / or FR5) can be modified, and the techniques described herein are applicable to those modified frequency ranges.

[0057] In some aspects, UE 120 may include a communication manager 140. As described in more detail elsewhere herein, the communication manager 140 may receive configuration information indicating a set of SRS resources including SRS resources associated with multiple antenna ports, and the multiple antenna ports having a distributed mapping to multiple OFDM symbols of the SRS resources; and transmit multiple SRSs on the multiple antenna ports in the multiple OFDM symbols of the SRS resources using a frequency hopping mode as a function of a count of the number of SRS transmissions, and the count of the number of SRS transmissions is scaled by the number of multiple OFDM symbols. Alternatively or additionally, the communication manager 140 may perform one or more other operations described herein.

[0058] In some aspects, network node 110 may include communication manager 150. As described in more detail elsewhere herein, communication manager 150 may send configuration information indicating a set of SRS resources including SRS resources associated with multiple antenna ports, and the multiple antenna ports having a distributed mapping to multiple OFDM symbols of the SRS resources; and receive multiple SRSs on multiple antenna ports in the multiple OFDM symbols of the SRS resources using a frequency hopping mode as a function of a count of the number of SRS transmissions, and the count of the number of SRS transmissions is scaled by the number of multiple OFDM symbols. Alternatively or additionally, communication manager 150 may perform one or more other operations described herein.

[0059] As pointed out above, Figure 1 This is provided as an example. Other examples may differ from the one provided. Figure 1 The example described.

[0060] Figure 2This is a diagram illustrating an example 200 of communication between a network node 110 and a UE 120 in a wireless network 100. The network node 110 may be equipped with antenna sets 234a to 234t, such as T (T≥1) antennas. The UE 120 may be equipped with antenna sets 252a to 252r, such as R (R≥1) antennas. The network node 110 of example 200 includes one or more radio frequency components, such as antennas 234 and modems 232. In some examples, the network node 110 may include an interface, communication component, or other component facilitating communication with the UE 120 or another network node. Some network nodes 110 may not include radio frequency components facilitating direct communication with the UE 120 (such as one or more CUs, or one or more DUs).

[0061] At network node 110, transmitting processor 220 can receive data from data source 212 intended for use with UE 120 (or a set of UEs 120). Transmitting processor 220 can select one or more modulation and coding schemes (MCS) for UE 120, at least in part, based on one or more Channel Quality Indicators (CQIs) received from UE 120. Network node 110 can process (e.g., encode and modulate) the data for UE 120, at least in part, based on the MCS selected for UE 120, and can provide data symbols for UE 120. Transmitting processor 220 can process system information (e.g., for Semi-Static Resource Partitioning Information (SRPI)) and control information (e.g., CQI requests, permission, and / or upper-layer signaling), and provide overhead symbols and control symbols. Transmit processor 220 can generate reference symbols for reference signals (e.g., cell-specific reference signals (CRS) or demodulation reference signals (DMRS)) and synchronization signals (e.g., primary synchronization signal (PSS) and secondary synchronization signal (SSS)). Transmit (TX) multiple-input multiple-output (MIMO) processor 230 can perform spatial processing (e.g., precoding) on ​​these data symbols, control symbols, overhead symbols, and / or reference symbols (if applicable), and provide a set of output symbol streams (e.g., T output symbol streams) to a set of corresponding modems 232 (e.g., T modems, shown as modems 232a to 232t). For example, each output symbol stream can be provided to a modulator component (shown as MOD) of modem 232. Each modem 232 can use a corresponding modulator component to process its respective output symbol stream (e.g., for OFDM) to obtain an output sample stream. Each modem 232 can also use a corresponding modulator component to process (e.g., convert to analog, amplify, filter, and / or up-convert) the output sample stream to obtain a downlink signal. Modems 232a to 232t can transmit a set of downlink signals (e.g., T downlink signals) via a set of corresponding antennas 234 (e.g., T antennas, shown as antennas 234a to 234t).

[0062] At UE 120, an array of antennas 252 (shown as antennas 252a to 252r) can receive downlink signals from network node 110 and / or other network nodes 110, and can provide a set of received signals (e.g., R received signals) to an array of modems 254 (e.g., R modems) (shown as modems 254a to 254r). For example, each received signal can be provided to a demodulator component (shown as DEMOD) of modem 254. Each modem 254 can use its respective demodulator component to condition (e.g., filter, amplify, down-convert, and / or digitize) the received signal to obtain an input sample. Each modem 254 can use the demodulator component to further process the input sample (e.g., for OFDM) to obtain a received symbol. MIMO detector 256 can obtain the received symbol from modulator 254, perform MIMO detection on the received symbol (if applicable), and can provide the detected symbol. The receiver processor 258 can process (e.g., demodulate and decode) the detected symbols, provide decoded data for the UE 120 to the data sink 260, and provide decoded control and system information to the controller / processor 280. The term "controller / processor" can refer to one or more controllers, one or more processors, or a combination thereof. The channel processor can determine Reference Signal Received Power (RSRP) parameters, Received Signal Strength Indicator (RSSI) parameters, Reference Signal Received Quality (RSRQ) parameters, and / or CQI parameters, among other examples. In some examples, one or more components of the UE 120 may be included in a housing.

[0063] Network controller 130 may include communication unit 294, controller / processor 290, and memory 292. For example, network controller 130 may include one or more devices in the core network. Network controller 130 may communicate with network node 110 via communication unit 294.

[0064] One or more antennas (e.g., antennas 234a to 234t and / or antennas 252a to 252r) may include or may be included within the following: one or more antenna panels, one or more antenna groups, one or more antenna element sets, and / or one or more antenna arrays, and other examples. Antenna panels, antenna groups, antenna element sets, and / or antenna arrays may include one or more antenna elements (within a single housing or multiple housings), coplanar antenna element sets, non-coplanar antenna element sets, and / or coupled to one or more transmitting and / or receiving components (such as...) Figure 2 One or more antenna elements (one or more components).

[0065] On the uplink, at UE 120, transmit processor 264 can receive data from data source 262 and control information (e.g., for reporting including RSRP, RSSI, RSRQ, and / or CQI) from controller / processor 280, and process the data and control information. Transmit processor 264 can generate reference symbols for one or more reference signals. Symbols from transmit processor 264 can be pre-encoded (if applicable) by TX MIMO processor 266, further processed by modulator 254 (e.g., for DFT-s-OFDM or CP-OFDM), and transmitted to network node 110. In some examples, modem 254 of UE 120 may include modulator and demodulator. In some examples, UE 120 includes a transceiver. This transceiver may include any combination of antenna 252, modem 254, MIMO detector 256, receive processor 258, transmit processor 264, and / or TX MIMO processor 266. The processor (e.g., controller / processor 280) and memory 282 may use a transceiver to perform aspects of any of the methods described herein (e.g., refer to...). Figures 7-17 ).

[0066] At network node 110, uplink signals from UE 120 and / or other UEs can be received by antenna 234, processed by demodulator 232 (e.g., demodulator component, shown as DEMOD of modem 232), detected by MIMO detector 236 (if applicable), and further processed by receive processor 238 to obtain decoded data and control information transmitted by UE 120. Receive processor 238 can provide decoded data to data sink 239 and decoded control information to controller / processor 240. Network node 110 may include communication unit 244 and can communicate with network controller 130 via communication unit 244. Network node 110 may include scheduler 246 to schedule one or more UEs 120 for downlink and / or uplink communication. In some examples, modem 232 of network node 110 may include modulator and demodulator. In some examples, network node 110 includes transceiver. The transceiver may include any combination of antenna 234, modem 232, MIMO detector 236, receive processor 238, transmit processor 220, and / or TX MIMO processor 230. The processor (e.g., controller / processor 240) and memory 242 may be used to perform aspects of any of the methods described herein (e.g., references...). Figures 7-17 ).

[0067] The controller / processor 240 of network node 110, the controller / processor 280 of UE 120 and / or Figure 2 Any other components may perform one or more techniques associated with SRS frequency hopping for distributed antenna port mapping, as described in more detail elsewhere herein. For example, the controller / processor 240 of network node 110, the controller / processor 280 of UE 120, and / or Figure 2 Any other component can perform or direct, for example Figure 14 Process 1400 Figure 15 The operation of process 1500 and / or other processes as described herein. Memory 242 and memory 282 may store data and program code for network node 110 and UE 120, respectively. In some examples, memory 242 and / or memory 282 may include a non-transitory computer-readable medium storing one or more instructions (e.g., code and / or program code) for wireless communication. For example, one or more instructions, when executed by one or more processors of network node 110 and / or UE 120 (e.g., directly, or after compilation, transformation, and / or interpretation), may cause one or more processors, UE 120, and / or network node 110 to perform or instruct, for example... Figure 14 Process 1400 Figure 15 The operation of process 1500 and / or other processes as described herein. In some examples, execution instructions may include run instructions, transform instructions, compile instructions, and / or interpret instructions, as well as other examples.

[0068] In some aspects, the UE (e.g., UE 120) includes: a unit for receiving configuration information indicating a set of SRS resources including SRS resources associated with multiple antenna ports, the multiple antenna ports having a distributed mapping to multiple OFDM symbols of the SRS resources; and / or a unit for transmitting multiple SRSs on multiple antenna ports in the multiple OFDM symbols of the SRS resources using a frequency hopping mode as a function of a count of the number of SRS transmissions, and the count of the number of SRS transmissions being scaled by the number of multiple OFDM symbols. The unit for the UE to perform the operations described herein may include, for example, one or more of a communication manager 140, an antenna 252, a modem 254, a MIMO detector 256, a receive processor 258, a transmit processor 264, a TX MIMO processor 266, a controller / processor 280, or a memory 282.

[0069] In some aspects, a network node (e.g., network node 110) includes: a unit for transmitting configuration information indicating a set of SRS resources including SRS resources associated with multiple antenna ports, the multiple antenna ports having a distributed mapping to multiple OFDM symbols of the SRS resources; and / or a unit for receiving multiple SRSs on multiple antenna ports in the multiple OFDM symbols of the SRS resources using a frequency hopping mode as a function of a count of the number of SRS transmissions, and the count of the number of SRS transmissions being scaled by the number of multiple OFDM symbols. The unit for the network node to perform the operations described herein may include, for example, one or more of a communication manager 150, a transmit processor 220, a TX MIMO processor 230, a modem 232, an antenna 234, a MIMO detector 236, a receive processor 238, a controller / processor 240, a memory 242, or a scheduler 246.

[0070] Although Figure 2 The boxes in the diagram are shown as different components, but the functions described above with respect to these boxes can be implemented in a single hardware, software, or combined component, or in various combinations of components. For example, the functions described with respect to transmit processor 264, receive processor 258, and / or TX MIMO processor 266 can be performed by or under the control of controller / processor 280.

[0071] As pointed out above, Figure 2 This is provided as an example. Other examples may differ from the one provided. Figure 2 The example described.

[0072] Communication systems (such as 5G NR systems) can be deployed in various ways using a variety of components or parts. In a 5G NR system or network, network nodes, network entities, network mobility elements, RAN nodes, core network nodes, network elements, base stations, or network devices can be implemented in an aggregated or decomposed architecture. For example, a base station (such as a Node B (NB), evolved NB (eNB), NR base station, 5G NB, access point (AP), TRP, or cell, and other examples) or one or more units (or components) performing base station functions can be implemented as an aggregated base station (also known as a standalone base station or monolithic base station) or a decomposed base station. A "network entity" or "network node" can refer to a decomposed base station or one or more units of a decomposed base station (such as one or more CUs, one or more DUs, one or more RUs, or combinations thereof).

[0073] Aggregated base stations (e.g., aggregated network nodes) can be configured to utilize a radio protocol stack that is physically or logically integrated within a single RAN node (e.g., within a single device or unit). Decomposed base stations (e.g., decomposed network nodes) can be configured to utilize a protocol stack that is physically or logically distributed across two or more units (such as one or more CUs, one or more DUs, or one or more RUs). In some examples, the CU can be implemented within a network node, and one or more DUs can be co-located with the CU, or alternatively, can be geographically or virtually distributed across one or more other network nodes. DUs can be implemented to communicate with one or more RUs. Each of the CU, DU, and RU can also be implemented as a virtual unit (such as a Virtual Central Unit (VCU), Virtual Distributed Unit (VDU), or Virtual Radio Unit (VRU), and other examples).

[0074] Base station type operation or network design can consider the aggregation characteristics of base station functions. For example, decomposed base stations can be used in IAB networks, Open Radio Access Networks (O-RAN (such as network configurations sponsored by the O-RAN Alliance)), or Virtualized Radio Access Networks (vRAN, also known as Cloud Radio Access Networks (C-RAN)) to facilitate the expansion of communication systems by separating base station functions into one or more units that can be deployed independently. Decomposed base stations can include functions implemented by two or more units across various physical locations, as well as functions virtually implemented for at least one unit, which allows for flexibility in network design. The individual units of a decomposed base station can be configured for wired or wireless communication with at least one other unit of the decomposed base station.

[0075] Figure 3 This is a diagram illustrating an example disaggregated base station architecture 300 according to this disclosure. The disaggregated base station architecture 300 may include a CU 310, which may communicate directly with the core network 320 via a backhaul link, or indirectly with the core network 320 via one or more disaggregated control units (such as a near-RT RIC 325 via an E2 link, or a non-RT RIC 315 associated with a Service Management and Orchestration (SMO) framework 305, or both). The CU 310 may communicate with one or more DUs 330 via a corresponding midrange link (e.g., via an F1 interface). Each of the DUs 330 may communicate with one or more RUs 340 via a corresponding fronthaul link. Each of the RUs 340 may communicate with one or more UEs 120 via a corresponding radio frequency (RF) access link. In some implementations, a UE 120 may be served simultaneously by multiple RUs 340.

[0076] Each of the units (including CU 310, DU 330, RU 340) and the near-RT RIC 325, non-RT RIC 315, and SMO framework 305 may include or be coupled to one or more interfaces configured to receive or transmit signals, data, or information (collectively, signals) via a wired or wireless transmission medium. Each unit in the unit, or an associated processor or controller providing instructions to one or more communication interfaces of the corresponding unit, may be configured to communicate with one or more other units in other units via a transmission medium. In some examples, each unit may include: a wired interface configured to receive signals on a wired transmission medium or transmit signals to one or more other units in other units; and a wireless interface that may include a receiver, transmitter, or transceiver (such as an RF transceiver) configured to receive signals on a wireless transmission medium or transmit signals to one or more other units in other units, or both.

[0077] In some aspects, the CU 310 can host one or more higher-level control functions. Such control functions may include Radio Resource Control (RRC) functions, Packet Data Convergence Protocol (PDCP) functions, or Service Data Adaptation Protocol (SDAP) functions, and other examples. Each control function may be implemented using an interface configured to transmit signaling to other control functions hosted by the CU 310. The CU 310 may be configured to handle user plane functions (e.g., Central Unit-User Plane (CU-UP) functions), control plane functions (e.g., Central Unit-Control Plane (CU-CP) functions), or combinations thereof. In some implementations, the CU 310 may be logically split into one or more CU-UP units and one or more CU-CP units. CU-UP units may communicate bidirectionally with CU-CP units via an interface (e.g., via an E1 interface when implemented in an O-RAN configuration). Where necessary, the CU 310 may be implemented to communicate with the DU 330 for network control and signaling.

[0078] Each DU 330 may correspond to a logical unit that includes one or more base station functions to control the operation of one or more RU 340s. In some aspects, the DU 330 may host one or more of the Radio Link Control (RLC) layer, Medium Access Control (MAC) layer, and one or more high physical (PHY) layers, at least in part, according to functional splits (such as those defined by 3GPP). In some aspects, the one or more high PHY layers may be implemented by one or more modules for forward error correction (FEC) encoding and decoding, scrambling, and modulation and demodulation, and other examples. In some aspects, the DU 330 may also host one or more low PHY layers, for example, by one or more modules for Fast Fourier Transform (FFT), Inverse FFT (iFFT), or Digital Beamforming or Physical Random Access Channel (PRACH) extraction and filtering, and other examples. Each layer (also referred to as a module) may be implemented using an interface configured to transmit signals with other layers (and modules) hosted by the DU 330 or with control functions hosted by the CU 310.

[0079] Each RU 340 can implement lower-layer functions. In some deployments, the RU 340 controlled by the DU 330 can correspond to a logical node hosting RF processing functions or low-PHY layer functions, such as performing FFT, performing iFFT, digital beamforming, or PRACH extraction and filtering, and other examples based on function splits (e.g., function splits defined by 3GPP) (such as lower-layer function splits). In such an architecture, each RU 340 can operate to handle over-the-air (OTA) communication with one or more UE 120s. In some implementations, the real-time and non-real-time aspects of control and user plane communication with the RU 340 can be controlled by the corresponding DU 330. In some scenarios, this configuration allows each DU 330 and CU 310 to be implemented in a cloud-based RAN architecture (such as vRAN architecture).

[0080] SMO framework 305 can be configured to support RAN deployment and provisioning of both non-virtualized and virtualized network elements. For non-virtualized network elements, SMO framework 305 can be configured to support the deployment of dedicated physical resources for RAN coverage requirements, which can be managed via operation and maintenance interfaces such as the O1 interface. For virtualized network elements, SMO framework 305 can be configured to interact with cloud computing platforms such as the Open Cloud (O-Cloud) platform 390 to perform network element lifecycle management (e.g., instantiating virtualized network elements) via cloud computing platform interfaces such as the O2 interface. Such virtualized network elements may include, but are not limited to, CU 310, DU 330, RU 340, non-RT RIC 315, and near-RT RIC 325. In some implementations, SMO framework 305 can communicate with the hardware aspects of the 4G RAN (such as the Open eNB (O-eNB) 311) via the O1 interface. Additionally, in some implementations, the SMO framework 305 can communicate directly with each of one or more RUs 340 via a corresponding O1 interface. The SMO framework 305 may also include a non-RT RIC 315 configured to support the functionality of the SMO framework 305.

[0081] The non-RT RIC 315 can be configured to include logical functions that enable non-real-time control and optimization of RAN elements and resources, artificial intelligence / machine learning (AI / ML) workflows (including model training and updates), or policy-based guidance of applications / features in the near-RT RIC 325. The non-RT RIC 315 can be coupled to or communicate with the near-RT RIC 325 (e.g., via an A1 interface). The near-RT RIC 325 can be configured to include logical functions that enable near real-time control and optimization of RAN elements and resources via data collection and actions on an interface (e.g., via an E2 interface) connecting one or more CUs 310, one or more DUs 330, or both, and the O-eNB to the near-RT RIC 325.

[0082] In some implementations, to generate AI / ML models to be deployed in the near-RT RIC 325, the non-RT RIC 315 can receive parameters or external enrichment information from an external server. This information can be utilized by the near-RT RIC 325 and can be received from non-network data sources or network functions at the SMO framework 305 or the non-RT RIC 315. In some examples, the non-RT RIC 315 or near-RT RIC 325 can be configured to tune RAN behavior or performance. For example, the non-RT RIC 315 can monitor long-term trends and patterns in performance and perform corrective actions using the AI / ML model via the SMO framework 305 (e.g., via reconfiguration of the O1 interface) or by creating RAN management policies (such as A1 interface policies).

[0083] As pointed out above, Figure 3 This is provided as an example. Other examples may differ from the one provided. Figure 3 The example described.

[0084] Figure 4 This is a diagram illustrating example 400 of physical channels and reference signals in a wireless network according to this disclosure. Figure 4 As shown, the downlink channel and downlink reference signal can carry information from network node 110 to UE 120, and the uplink channel and uplink reference signal can carry information from UE 120 to network node 110.

[0085] As shown in the figure, downlink channels may include a Physical Downlink Control Channel (PDCCH) carrying downlink control information (DCI), a Physical Downlink Shared Channel (PDSCH) carrying downlink data, or a Physical Broadcast Channel (PBCH) carrying system information, and other examples. In some aspects, PDSCH communication may be scheduled by PDCCH communication. As further shown, uplink channels may include a Physical Uplink Control Channel (PUCCH) carrying uplink control information (UCI), a Physical Uplink Shared Channel (PUSCH) carrying uplink data, or a PRACH for initial network access, and other examples. In some aspects, UE 120 may send acknowledgment (ACK) or negative acknowledgment (NACK) feedback (e.g., ACK / NACK feedback or ACK / NACK information) in the UCI on the PUCCH and / or PUSCH.

[0086] As further illustrated, downlink reference signals may include synchronization signal blocks (SSBs), channel state information (CSI) reference signals (CSI-RS), DMRS, positioning reference signals (PRS), or phase tracking reference signals (PTRS), and other examples. Similarly, uplink reference signals may include sounding reference signals (SRS), DMRS, or PTRS, and other examples.

[0087] The SSB can carry information for initial network acquisition and synchronization, such as PSS, SSS, PBCH, and PBCH DMRS. The SSB is sometimes referred to as the synchronization signal / PBCH (SS / PBCH) block. In some aspects, network node 110 can transmit multiple SSBs on multiple corresponding beams, and the SSB can be used for beam selection.

[0088] CSI-RS can carry information for downlink channel estimation (e.g., downlink CSI acquisition), which can be used for scheduling, link adaptation, beam management, and other examples. Network node 110 can configure a set of CSI-RS for UE 120, and UE 120 can measure the configured set of CSI-RS. Based at least in part on the measurement, UE 120 can perform channel estimation and can report channel estimation parameters to network node 110 (e.g., in a CSI report), such as CQI, precoding matrix indicator (PMI), CSI-RS resource indicator (CRI), layer indicator (LI), rank indicator (RI), or RSRP, and other examples. Network node 110 can use the CSI report to select transmission parameters for downlink communication to UE 120, such as the number of transport layers (e.g., rank), precoding matrix (e.g., precoder), MCS, or refined downlink beam (e.g., using a beam refinement process or beam management process), and other examples.

[0089] DMRS can carry information used to estimate the radio channel for demodulating the associated physical channel (e.g., PDCCH, PDSCH, PBCH, PUCCH, or PUSCH). The design and mapping of DMRS can be specific to the physical channel used for estimation. DMRS is UE-specific, can be beamformed, can be restricted to scheduled resources (e.g., not transmitted over broadband), and can only be transmitted when necessary. As shown, DMRS is used for both downlink and uplink communication.

[0090] PTRS can carry information for compensating oscillator phase noise. Typically, phase noise increases with the oscillator carrier frequency. Therefore, PTRS can be used at high carrier frequencies (such as millimeter-wave frequencies) to mitigate phase noise. PTRS can be used to track the phase of a local oscillator and achieve suppression of phase noise and common phase error (CPE). As shown, PTRS is used for both downlink communication (e.g., on the PDSCH) and uplink communication (e.g., on the PUSCH).

[0091] The PRS can carry information for timing or ranging measurements of the UE 120 based on signals transmitted by network node 110 to improve Observation Time Difference of Arrival (OTDOA) positioning performance. For example, the PRS can be a pseudo-random quadrature phase shift keying (QPSK) sequence mapped in a diagonal pattern, offset in frequency and time to avoid collisions with cell-specific reference signals and control channels (e.g., PDCCH). Typically, the PRS can be designed to improve the detectability of the UE 120, which may need to detect downlink signals from multiple neighboring network nodes to perform OTDOA-based positioning. Therefore, the UE 120 can receive PRS from multiple cells (e.g., a reference cell and one or more neighboring cells) and can report the Reference Signal Time Difference (RSTD) based on the OTDOA measurements associated with the PRS received from the multiple cells. In some aspects, network node 110 can then calculate the location of the UE 120 based on the RSTD measurements reported by the UE 120.

[0092] The SRS can carry information for uplink channel estimation, which can be used for scheduling, link adaptation, precoder selection, beam management, and other examples. Network node 110 can configure one or more SRS resource sets for UE 120, and UE 120 can transmit SRS on the configured SRS resource sets. The SRS resource sets can have configured uses, such as uplink CSI acquisition, downlink CSI acquisition for reciprocity-based operations, uplink beam management, and other examples. Network node 110 can measure the SRS, can perform channel estimation at least in part based on the measurement, and can use the SRS measurement to configure communication with UE 120.

[0093] As pointed out above, Figure 4 This is provided as an example. Other examples may differ from the one provided. Figure 4 The example described.

[0094] Figure 5 This is a diagram illustrating an example 500 of an SRS resource set according to this disclosure.

[0095] UE 120 may be configured with one or more SRS resource sets to allocate resources for SRS transmissions performed by UE 120. For example, the configuration for the SRS resource set may be indicated in an RRC message (e.g., an RRC configuration message or an RRC reconfiguration message). As shown by reference numeral 505, an SRS resource set may include one or more resources (e.g., shown as SRS resources), which may include time resources and / or frequency resources (e.g., time slots, symbols, resource blocks, and / or periods for time resources).

[0096] As shown by reference numeral 510 in the accompanying drawings, an SRS resource may include one or more antenna ports on which SRS is to be transmitted (e.g., in time-frequency resources). Therefore, the configuration for an SRS resource set may indicate one or more time-frequency resources on which SRS is to be transmitted, and may indicate one or more antenna ports on which SRS is to be transmitted in those time-frequency resources. In some aspects, the configuration for an SRS resource set may indicate use cases for the SRS resource set (e.g., in the SRS-SetUse information element). For example, the SRS resource set may have use cases for antenna switching, codebook, non-codebook, and beam management.

[0097] An antenna port can represent a combination of physical antennas for UE 120 and / or a channel. In some cases, UE 120 may not have knowledge of the channels associated with the physical antennas and may operate based on knowledge of the channels associated with the antenna port. Antenna ports can be defined such that a channel transmitting symbols on an antenna port can be inferred from a channel transmitting another symbol on the same antenna port.

[0098] The antenna switching SRS resource set can be used to indicate the downlink CSI with reciprocity between the uplink and downlink channels. For example, when there is reciprocity between the uplink and downlink channels, network node 110 can use the antenna switching SRS (e.g., the SRS transmitted using resources of the antenna switching SRS resource set) to obtain the downlink CSI (e.g., to determine the downlink precoder to be used for communication with UE 120).

[0099] When network node 110 indicates an uplink precoder to UE 120, the codebook SRS resource set can be used to indicate the uplink CSI. For example, when network node 110 is configured to indicate an uplink precoder to UE 120 (e.g., using a precoder codebook), network node 110 can use the codebook SRS (e.g., an SRS transmitted using resources from the codebook SRS resource set) to obtain the uplink CSI (e.g., determine the uplink precoder to be indicated to UE 120 and used by UE 120 to communicate with network node 110). In some aspects, virtual ports with maximum transmit power (e.g., a combination of two or more antenna ports) can be supported at least for the codebook SRS.

[0100] When UE 120 selects an uplink precoder (e.g., instead of the uplink precoder indicated by network node 110 to be used by UE 120), a non-codebook SRS resource set can be used to indicate the uplink CSI. For example, when UE 120 is configured to select an uplink precoder, network node 110 can use non-codebook SRS (e.g., SRS transmitted using resources from a non-codebook SRS resource set) to obtain the uplink CSI. In this case, the precoder selected by UE 120 (e.g., which can be indicated to network node 110) can be used to precode the non-codebook SRS.

[0101] The beam management SRS resource set can be used to indicate CSI for millimeter-wave communications.

[0102] SRS resources can be configured as periodic, semi-persistent (sometimes referred to as semi-persistent scheduling (SPS)), or aperiodic. Periodic SRS resources can be configured via a configuration message that indicates the period (e.g., slot-level period, where the SRS resource occurs every Y slots) and slot offset of the SRS resource. In some cases, periodic SRS resources can always be active and can be either not dynamically activated or deactivated. Semi-persistent SRS resources can also be configured via a configuration message that indicates the period and slot offset for the semi-persistent SRS resource and can be dynamically activated and deactivated (e.g., using DCI or MAC control element (CE) (MAC-CE)). Aperiodic SRS resources can be dynamically triggered, such as via DCI (e.g., UE-specific DCI or group common DCI) or MAC-CE.

[0103] In some aspects, UE 120 can be configured with a mapping between SRS ports (e.g., antenna ports) and corresponding SRS resources. UE 120 can transmit SRS on a specific SRS resource using the SRS port indicated in the configuration. In some aspects, the SRS resource can span N adjacent symbols within a time slot (e.g., where N equals 1, 2, 4, or 8). UE 120 can be configured with X SRS ports (e.g., where X ≤ 8). In some examples, as described herein, the X SRS ports can have a distributed mapping to multiple symbols out of the N symbols of the SRS resource.

[0104] like Figure 5 As shown, in some aspects, different SRS resource sets (e.g., with different use cases) indicated to UE 120 can overlap (e.g., in time and / or frequency, such as in the same time slot). For example, as shown by reference numeral 515, a first SRS resource set (e.g., shown as SRS resource set 1) is shown to have an antenna switching use case. As shown, this example antenna switching SRS resource set includes a first SRS resource (shown as SRS resource A) and a second SRS resource (shown as SRS resource B). Therefore, antenna switching SRS can be transmitted in SRS resource A (e.g., a first time-frequency resource) using antenna ports 0 and 1, and antenna switching SRS can be transmitted in SRS resource B (e.g., a second time-frequency resource) using antenna ports 2 and 3.

[0105] As shown by reference numeral 520 in the attached figure, the second SRS resource set (e.g., shown as SRS resource set 2) can be a codebook use case. As illustrated, this example codebook SRS resource set only includes the first SRS resource (shown as SRS resource A). Therefore, codebook SRS can be transmitted in SRS resource A (e.g., the first time-frequency resource) using antenna ports 0 and 1. In this case, UE 120 can transmit codebook SRS in SRS resource B (e.g., the second time-frequency resource) without using antenna ports 2 and 3.

[0106] As used herein, a "slot" can refer to a portion of a radio frame (or subframe) within an LTE, 5G, or other wireless communication architecture. In some respects, a slot may include one or more symbols. Furthermore, a "symbol" can refer to an OFDM symbol or another similar symbol within a slot.

[0107] As pointed out above, Figure 5 This is provided as an example. Other examples may differ from the one provided. Figure 5 The example described.

[0108] Figure 6This is a diagram illustrating an example 600 of SRS frequency hopping according to the present disclosure. SRS frequency hopping can be performed according to several different schemes. For example, SRS frequency hopping can be performed using scheme 605 with intra-slot frequency hopping without SRS repetition, scheme 610 with inter-slot frequency hopping without SRS repetition, scheme 615 with intra-slot frequency hopping with SRS repetition, scheme 620 with inter-slot frequency hopping with SRS repetition, scheme 625 with both inter-slot and intra-slot frequency hopping without SRS repetition, or scheme 630 with both inter-slot and intra-slot frequency hopping with SRS repetition.

[0109] The UE can be configured with frequency hopping parameters (b) hop SRS resources for frequency hopping enabled (∈{0,1,2,3}). For example, if the value of the frequency hopping parameter is less than the SRS bandwidth parameter (B) configured for the UE. SRS If the frequency hopping pattern is specified, then frequency hopping is enabled for the UE. The frequency hopping mode used for frequency hopping can be determined based on a set of parameters. Some parameters can be signaled to the UE, while others can be determined by the UE (e.g., at least in part based on another parameter). The parameter set may include, for example, a frequency domain shift position n. RRC (It can be configured in the frequency domain location parameters for SRS resources), the size m of each subband to be hopped. SRS,b For b = B SRS The number of subbands to be transitioned, N b (It can be determined at least in part based on the rows of a table, which is defined by the wireless communication specification or notified to the UE by a signal) and the SRS counter n SRS .

[0110] Frequency hopping (or subband hopping) can be at least partially based on the parameter n. b of, among which:

[0111]

[0112] For example, n b It can identify the frequency location index when frequency hopping occurs. N b It can be a subband index, and can control the index of the subband transition for each SRS timing. In some examples, N b This can be given by tables, such as those defined in wireless communication standards or those notified to the UE by signals. The frequency hopping mode can be given by Equation 2:

[0113]

[0114] Wherein, regardless of N b What is the value of ? Quantity n SRSThe number of SRS transmissions can be counted. For aperiodic SRS resources, transmissions are made within them. Within the time slot of a symbolic SRS resource, n SRS This can be given by Equation 3:

[0115]

[0116] in This is the repetition factor (e.g., the number of repetitions) configured in the SRS resource, and l ′ This is a counter for SRS symbols (e.g., an SRS symbol index). For periodic or semi-persistent SRS resources, for those that satisfy... The time slot, n SRS This can be given by Equation 4:

[0117]

[0118] in The number of time slots in the identifier frame, n f Identifier frame index, Identify the subframe index, and T SRS and T offset The period and time slot offset are identified separately.

[0119] Therefore, in other words, the frequency hopping mode can be determined by F b (n SRS ) Determined, F b (n SRS ) can be n SRS The function, and n SRS This is a counter for SRS transmission. Therefore, as shown in the figure, each frequency hop in the frequency hopping mode can be at least partially based on an increment of n. SRS The counter. Furthermore, multiple OFDM symbols with SRS repetition (e.g., R>1) are counted by n. SRS The counter counts one SRS transmission.

[0120] For traditional codebook-based PUSCH communication (e.g., using an indicated uplink precoder), it may be necessary to simultaneously probe the SRS ports within a single OFDM symbol. However, for eight SRS ports in codebook-based PUSCH communication, probing the eight SRS ports across multiple OFDM symbols has been introduced. Therefore, the UE can use higher power to probe each SRS port. For example, to probe eight SRS ports within a single OFDM symbol, transmit power can be allocated among the eight SRS ports. However, to probe eight SRS ports across eight OFDM symbols, four OFDM symbols, or two OFDM symbols, transmit power can be allocated without allocating transmit power, allocated between two SRS ports, or allocated among four SRS ports, respectively.

[0121] In some examples, SRS transmissions can use frequency hopping, as described herein. SRS frequency hopping can use subband SRS to scan a larger bandwidth across multiple OFDM symbols. In conventional schemes, a single OFDM symbol can include all SRS ports, and therefore all SRS ports hop together. However, for SRS ports allocated to multiple OFDM symbols, a single symbol includes only a subset of the SRS ports. Therefore, per-symbol frequency hopping will result in probes to fewer than all antenna ports in each hop. As a result, the UE's SRS transmissions may be less robust, affecting uplink channel estimation for measurements using SRS transmissions, link adaptation, precoder selection, beam management, and other examples.

[0122] Some of the techniques and apparatus described herein implement frequency hopping for SRS transmission on antenna ports having a distributed mapping to multiple OFDM symbols of SRS resources. In some aspects, the UE can transmit SRS (e.g., according to the distributed mapping) on ​​multiple antenna ports across multiple OFDM symbols of the SRS resource in a single frequency hop (e.g., sub-band) of the frequency hopping mode. This can be achieved by combining a count of SRS transmissions (n... SRS This is achieved by treating multiple OFDM symbols as a single OFDM symbol (e.g., a single cell). Furthermore, for SRS repetitions in SRS resources, the UE can transmit SRS on multiple antenna ports in the first plurality of OFDM symbols of the SRS resource during a single frequency hop (e.g., subband) of the frequency hopping mode (e.g., according to distributed mapping), and transmit one or more repetitions of SRS on multiple antenna ports in the second plurality of OFDM symbols of the SRS resource (e.g., according to distributed mapping). This can be achieved by combining counting (n) of SRS transmissions. SRS The first multiple OFDM symbols and the second multiple OFDM symbols are treated as a single OFDM symbol (e.g., a single cell).

[0123] This allows SRS transmissions to be performed on all multiple antenna ports during each frequency hop. Therefore, SRS transmissions are distinct in the time and frequency domains, improving uplink channel estimation for measurements using SRS transmissions, including scheduling, link adaptation, precoder selection, beam management, and other examples.

[0124] As pointed out above, Figure 6 This is provided as an example. Other examples may differ from the one provided. Figure 6 The example described.

[0125] Figure 7 This is a diagram of example 700 associated with SRS frequency hopping for distributed antenna port mapping, based on the present disclosure. Figure 7 As shown, network nodes (e.g., network nodes 110, CU, DU, and / or RU) can communicate with UEs (e.g., UE 120). In some aspects, the network nodes and UEs can be part of a wireless network (e.g., wireless network 100). Figure 7 Prior to the operation shown, the UE and the network node may have already established a wireless connection.

[0126] As shown by reference numeral 705 in the attached figure, the UE can send a capability report (e.g., UE capability information), and the network node can receive the capability report. In some aspects, the capability report can indicate UE support for distributed SRS port mapping.

[0127] As shown by reference numeral 710 in the attached figure, a network node can send configuration information, and a UE can receive configuration information. In some aspects, the UE can receive configuration information via RRC signaling, one or more MAC-CEs and / or DCIs, and other examples. In some aspects, the configuration information may include indications of one or more configuration parameters for selection by the UE (e.g., already known to the UE and / or previously indicated by a network node or other network device), and / or explicit configuration information for the UE to use to configure the UE, and other examples.

[0128] In some aspects, configuration information may indicate the SRS resource set for the UE. The SRS resource set may include multiple SRS resources. For each SRS resource, the configuration information may identify the number of antenna ports included in the SRS resource, the time-domain resources used for the SRS resource, the number of OFDM symbols on which distributed SRS port mapping is applied (such as two, four, or eight OFDM symbols), the repetition factor used for SRS transmission, the frequency-domain resources used for the SRS resource, a frequency hopping indication (e.g., for identifying the frequency hopping mode), and the resource type of the SRS resource (e.g., aperiodic, semi-persistent, or periodic), and other examples. In some aspects, the SRS resource set may include SRS resources associated with multiple antenna ports having distributed mappings to multiple OFDM symbols of the SRS resource. According to the distributed mapping, a corresponding subset of the multiple antenna ports (e.g., fewer than all of the multiple antenna ports) is mapped to each OFDM symbol among the multiple OFDM symbols. For example, an SRS resource can be associated with eight antenna ports, and these eight antenna ports can be distributed across two OFDM symbols (e.g., four antenna ports per OFDM symbol), four OFDM symbols (e.g., two antenna ports per OFDM symbol), or eight OFDM symbols (e.g., one antenna port per OFDM symbol). Furthermore, frequency hopping can be enabled for the SRS resource.

[0129] The UE can configure itself, at least in part, based on configuration information. In some aspects, the UE can be configured to perform one or more operations described herein, at least in part, based on configuration information. As shown by reference numeral 715, the UE can receive, and the network node can send, an indication to activate SRS resources for SRS transmission. This indication can be via MAC-CE or DCI.

[0130] As shown by reference numeral 720 in the attached figure, a UE can transmit multiple SRSs on multiple antenna ports across multiple OFDM symbols of an SRS resource (based on the distribution of antenna ports across OFDM symbols) during a single frequency hop in frequency hopping mode, and a network node can receive multiple SRSs. In some aspects, repetition can be configured for SRS resources, in which case the UE can transmit SRSs and one or more repetitions of SRSs in an SRS resource during a single frequency hop, and a network node can receive SRSs and one or more repetitions of SRSs. For example, the UE can transmit SRSs in a first plurality of OFDM symbols of an SRS resource (based on the distribution of antenna ports across OFDM symbols) during a single frequency hop, and transmit repetitions of SRSs in a second plurality of OFDM symbols of an SRS resource (based on the distribution of antenna ports across OFDM symbols).

[0131] In other words, for SRS frequency hopping that incorporates a distributed antenna port mapping of multiple OFDM symbols (where L is the number of OFDM symbols, L > 1), the L OFDM symbols can be treated as a single OFDM symbol (which can be called a "super OFDM symbol"). Therefore, SRS transmissions in the L OFDM symbols can occur within the same frequency hopping. In this way, SRS frequency hopping with a distributed antenna port mapping of multiple OFDM symbols can be compatible with conventional frequency hopping mechanisms or equations. Furthermore, if a repetition factor (referred to as R) is configured for the SRS resources, repetition can be applied to the R super OFDM symbols. In other words, the repetition factor used for SRS resources can be applied to multiple OFDM symbols as a single unit. For example, SRS transmissions in L × R OFDM symbols can occur within the same frequency hopping.

[0132] The frequency hopping mode used for SRS transmission can be either intra-slot frequency hopping or inter-slot frequency hopping. As an example of intra-slot frequency hopping, the UE can transmit SRS on multiple antenna ports in a first plurality of OFDM symbols of the SRS resource during a first frequency hop (SRS repetition can also occur during the first frequency hop), and the network node can receive the SRS. Continuing this example, the UE can transmit SRS on multiple antenna ports in a second plurality of OFDM symbols of the SRS resource during a second frequency hop (SRS repetition can also occur during the second frequency hop), and the network node can receive the SRS. In other words, each frequency hop involves different time resources within the same timing of the SRS resource. As an example of inter-slot frequency hopping, the UE can transmit SRS on multiple antenna ports in a first plurality of OFDM symbols of the SRS resource during a first timing during a first frequency hop (SRS repetition can also occur during the first frequency hop), and the network node can receive the SRS. Continuing this example, the UE can transmit SRS on multiple antenna ports in a second multiple OFDM symbols at a second timing of the SRS resource during a second frequency hop (SRS repetition can also occur during the second frequency hop), and the network node can receive the SRS. In other words, each frequency hop involves the same time resource in different timings of the SRS resource.

[0133] Frequency hopping mode can be a function of the count of SRS transmissions. For example, the UE and network node can count the number of SRS transmissions and determine the frequency hopping mode based on the count of SRS transmissions (e.g., according to Equation 2). Furthermore, the count of the number of SRS transmissions can be based on multiple OFDM symbols with multiple antenna ports distributed thereon being counted as a single OFDM symbol (e.g., multiple OFDM symbols are assumed to be or otherwise considered as a single OFDM symbol used to determine the count of the number of SRS transmissions). For example, SRS in multiple OFDM symbols can correspond to (e.g., can be counted as) a single SRS transmission. Additionally, if repetition is configured for SRS resources, SRS in the SRS resources and one or more repetitions of SRS can correspond to (e.g., can be counted as) a single SRS transmission. In this way, the count of the number of SRS transmissions can be based on (e.g., scaled by the number L) of multiple OFDM symbols with multiple antenna ports distributed thereon.

[0134] In some aspects, the count of SRS transmissions used for distributed SRS port mapping can be defined according to Equation 5 or Equation 6 below. For SRS resources configured as a non-periodic resource type (e.g., by the higher-level parameter resourceType), the count of SRS transmissions (n) is... SRS According to Equation 5:

[0135]

[0136] in

[0137] For SRS resources configured as periodic or semi-persistent resource types (e.g., by the higher-level parameter resourceType), the count of the number of SRS transmissions (n) is... SRS According to Equation 6:

[0138]

[0139] in Therefore, l″ redefines the counter for each L OFDM symbol as described above in combination with Equations 3 and 4.

[0140] In some aspects, the count of the number of SRS transmissions used for distributed SRS port mapping can be defined according to Equation 7 or Equation 8 below. For SRS resources configured as a non-periodic resource type (e.g., by the higher-level parameter resourceType), the count of the number of SRS transmissions (n) is... SRS According to Equation 7:

[0141]

[0142] For SRS resources configured as periodic or semi-persistent resource types (e.g., by the higher-level parameter resourceType), the count of the number of SRS transmissions (n) is... SRS According to Equation 8:

[0143]

[0144] Therefore, equations 3 and 4 described above can be modified to count each L OFDM symbol.

[0145] Therefore, the UE can use frequency hopping to perform SRS transmissions on SRS ports with distributed mappings to multiple OFDM symbols of SRS resources. In this way, SRS transmissions have time-domain and frequency-domain diversity, thereby improving uplink channel estimation for scheduling, link adaptation, precoder selection, or beam management using measurements of SRS transmissions, and other examples.

[0146] As pointed out above, Figure 7 This is provided as an example. Other examples may differ from the one provided. Figure 7 The example described.

[0147] Figure 8 This is a diagram illustrating an example 800 associated with SRS frequency hopping for distributed antenna port mapping according to the present disclosure. Specifically, example 800 relates to intra-slot SRS frequency hopping without SRS repetition. Furthermore, in example 800, multiple antenna ports (shown as eight antenna ports) associated with an SRS resource may have a distributed mapping to multiple OFDM symbols (shown as two OFDM symbols) of the SRS resource. The antenna ports mapped to the first OFDM symbol (shown as antenna ports 0, 1, 2, and 3) may be referred to as subset A, and the antenna ports mapped to the second OFDM symbol (shown as antenna ports 4, 5, 6, and 7) may be referred to as subset B. In some aspects, combined with Figure 7 The described UE and network node can send and receive SRS of Example 800, respectively.

[0148] As shown in the figure, the first frequency hopping in the frequency hopping mode can include SRS transmitted on multiple antenna ports of the first plurality of OFDM symbols allocated in the SRS resource. By treating the first plurality of OFDM symbols as a single OFDM symbol (e.g., a single cell), these SRS can be counted as the first SRS transmissions (by n) in conjunction with determining the frequency hopping mode (using Equation 2). SRSFurthermore, the second frequency hopping mode can include SRS transmitted on multiple antenna ports of a second plurality of OFDM symbols allocated to the SRS resources. By treating the second plurality of OFDM symbols as a single OFDM symbol (e.g., a single cell), these SRS can be counted as second SRS transmissions (by n) in conjunction with determining the frequency hopping mode. SRS ),etc.

[0149] As pointed out above, Figure 8 This is provided as an example. Other examples may differ from the one provided. Figure 8 The example described.

[0150] Figure 9 This is a diagram illustrating Example 900 associated with SRS frequency hopping for distributed antenna port mapping according to the present disclosure. Specifically, Example 900 relates to inter-slot SRS frequency hopping without SRS repetition. Furthermore, in Example 900, multiple antenna ports (shown as eight antenna ports) associated with an SRS resource may have a distributed mapping to multiple OFDM symbols (shown as two OFDM symbols) of the SRS resource. The antenna ports mapped to the first OFDM symbol (shown as antenna ports 0, 1, 2, and 3) may be referred to as subset A, and the antenna ports mapped to the second OFDM symbol (shown as antenna ports 4, 5, 6, and 7) may be referred to as subset B. In some aspects, combined with Figure 7 The described UE and network node can send and receive SRS of Example 900, respectively.

[0151] As shown in the figure, the first frequency hopping in the frequency hopping mode can include SRS transmitted on multiple antenna ports of multiple OFDM symbols allocated to the first timing of the SRS resource. By treating the multiple OFDM symbols of the first timing of the SRS resource as a single OFDM symbol (e.g., a single cell), these SRS can be counted as the first SRS transmission (by n) in conjunction with determining the frequency hopping mode (using Equation 2). SRS Furthermore, the second frequency hopping mode can transmit SRS on multiple antenna ports of multiple OFDM symbols allocated to the second timing of SRS resources. By treating the multiple OFDM symbols of the second timing of SRS resources as a single OFDM symbol (e.g., a single cell), these SRS can be counted as second SRS transmissions in conjunction with determining the frequency hopping mode (by n). SRS ),etc.

[0152] As pointed out above, Figure 9 This is provided as an example. Other examples may differ from the one provided. Figure 9 The example described.

[0153] Figure 10 This is a diagram illustrating Example 1000 associated with SRS frequency hopping for distributed antenna port mapping according to the present disclosure. Specifically, Example 1000 relates to inter-slot SRS frequency hopping with SRS repetition. Furthermore, in Example 1000, multiple antenna ports (shown as eight antenna ports) associated with SRS resources may have a distributed mapping to multiple OFDM symbols (shown as two OFDM symbols) of the SRS resources. The antenna ports mapped to the first OFDM symbol (shown as antenna ports 0, 1, 2, and 3) may be referred to as subset A, and the antenna ports mapped to the second OFDM symbol (shown as antenna ports 4, 5, 6, and 7) may be referred to as subset B. In some aspects, combined with Figure 7 The described UE and network node can send and receive SRS of Example 1000 respectively.

[0154] As shown in the figure, the first frequency hopping mode can include SRS transmitted on multiple antenna ports of a first plurality of OFDM symbols allocated to the SRS resource at a first timing. Additionally, the first frequency hopping mode can include repetitions of SRS transmitted on multiple antenna ports of a second plurality of OFDM symbols allocated to the SRS resource at a first timing. By treating the first plurality of OFDM symbols and the second plurality of OFDM symbols of the first timing of the SRS resource as a single OFDM symbol (e.g., a single cell), these SRS and SRS repetitions can be counted as first SRS transmissions (by n) in conjunction with determining the frequency hopping mode (using Equation 2). SRS Furthermore, the second frequency hopping mode can include SRS transmitted on multiple antenna ports of the first plurality of OFDM symbols at the second timing allocated to SRS resources. Additionally, the second frequency hopping mode can include repetitions of SRS transmitted on multiple antenna ports of the second plurality of OFDM symbols at the second timing allocated to SRS resources. By treating the first plurality of OFDM symbols and the second plurality of OFDM symbols at the second timing of SRS resources as a single OFDM symbol (e.g., a single cell), these SRS and SRS repetitions can be counted as second SRS transmissions (by n) in conjunction with determining the frequency hopping mode (using Equation 2). SRS ),etc.

[0155] As noted above, Figure 1000 is provided as an example. Other examples may differ from those described with respect to Figure 1000.

[0156] Figure 11This is a diagram illustrating Example 1100 associated with SRS frequency hopping for distributed antenna port mapping according to the present disclosure. Specifically, Example 1100 relates to in-slot SRS frequency hopping with SRS repetition. Furthermore, in Example 1100, multiple antenna ports (shown as eight antenna ports) associated with SRS resources may have a distributed mapping to multiple OFDM symbols (shown as two OFDM symbols) of the SRS resources. The antenna ports mapped to the first OFDM symbol (shown as antenna ports 0, 1, 2, and 3) may be referred to as subset A, and the antenna ports mapped to the second OFDM symbol (shown as antenna ports 4, 5, 6, and 7) may be referred to as subset B. In some aspects, combined with Figure 7 The described UE and network node can send and receive SRS of Example 1100 respectively.

[0157] As shown in the figure, the first frequency hopping mode can include SRS transmitted on multiple antenna ports of a first OFDM symbol interval allocated to SRS resources. Additionally, the first frequency hopping mode can include repetitions of SRS transmitted on multiple antenna ports of a second plurality of OFDM symbols allocated to SRS resources. By treating the first plurality of OFDM symbols and the second plurality of OFDM symbols as a single OFDM symbol (e.g., a single cell), these SRS and SRS repetitions can be counted as first SRS transmissions (by n) in conjunction with determining the frequency hopping mode (using Equation 2). SRS Furthermore, the second frequency hopping mode may include SRS transmitted on multiple antenna ports of a third plurality of OFDM symbols allocated to the SRS resource. Additionally, the second frequency hopping mode may include repetitions of SRS transmitted on multiple antenna ports of a fourth plurality of OFDM symbols allocated to the SRS resource. By treating the third and fourth plurality of OFDM symbols of the SRS resource as a single OFDM symbol (e.g., a single cell), these SRS and SRS repetitions can be counted as second SRS transmissions (by n) in conjunction with determining the frequency hopping mode (using Equation 2). SRS ),etc.

[0158] As noted above, Figure 1100 is provided as an example. Other examples may differ from those described with respect to Figure 1100.

[0159] Figure 12This is a diagram illustrating Example 1200 associated with SRS frequency hopping for distributed antenna port mapping according to the present disclosure. Specifically, Example 1200 relates to inter-slot SRS frequency hopping and intra-slot SRS frequency hopping without SRS repetition. Furthermore, in Example 1200, multiple antenna ports (shown as eight antenna ports) associated with an SRS resource may have a distributed mapping to multiple OFDM symbols (shown as two OFDM symbols) of the SRS resource. The antenna ports mapped to the first OFDM symbol (shown as antenna ports 0, 1, 2, and 3) may be referred to as subset A, and the antenna ports mapped to the second OFDM symbol (shown as antenna ports 4, 5, 6, and 7) may be referred to as subset B. In some aspects, in conjunction with Figure 7 The described UE and network node can send and receive SRS of Example 1200 respectively.

[0160] As shown in the figure, the first frequency hopping of the frequency hopping mode may include SRS transmitted on multiple antenna ports of the first plurality of OFDM symbols in the first timing allocated to SRS resources. By treating the first plurality of OFDM symbols in the first timing of the SRS resources as a single OFDM symbol (e.g., a single cell), these SRS can be counted as the first SRS transmissions (by n) in conjunction with determining the frequency hopping mode (using Equation 2). SRS Additionally, the second frequency hopping in the frequency hopping mode can include SRS transmitted on multiple antenna ports of a second plurality of OFDM symbols in the first timing allocated to the SRS resource. By treating the second plurality of OFDM symbols in the first timing of the SRS resource as a single OFDM symbol (e.g., a single cell), these SRS can be counted as second SRS transmissions (by n) in conjunction with determining the frequency hopping mode (using Equation 2). SRS ).

[0161] Furthermore, the third frequency hopping in the frequency hopping mode can include SRS transmitted on multiple antenna ports of the first plurality of OFDM symbols in the second timing allocated to SRS resources. By treating the first plurality of OFDM symbols in the second timing of the SRS resources as a single OFDM symbol (e.g., a single cell), these SRS can be counted as third SRS transmissions (by n) in conjunction with determining the frequency hopping mode (using Equation 2). SRS Additionally, the fourth frequency hopping in the frequency hopping mode can include SRS transmitted on multiple antenna ports of a second plurality of OFDM symbols in the second timing allocated to SRS resources. By treating the second plurality of OFDM symbols in the second timing of the SRS resources as a single OFDM symbol (e.g., a single cell), these SRS can be counted as the fourth SRS transmission (by n) in conjunction with determining the frequency hopping mode (using Equation 2). SRS ).

[0162] As noted above, Figure 1200 is provided as an example. Other examples may differ from those described with respect to Figure 1200.

[0163] Figure 13 This is a diagram illustrating Example 1300 associated with SRS frequency hopping for distributed antenna port mapping according to the present disclosure. Specifically, Example 1300 relates to inter-slot SRS frequency hopping and intra-slot SRS frequency hopping with SRS repetition. Furthermore, in Example 1300, multiple antenna ports (shown as eight antenna ports) associated with an SRS resource may have a distributed mapping to multiple OFDM symbols (shown as two OFDM symbols) of the SRS resource. The antenna ports mapped to the first OFDM symbol (shown as antenna ports 0, 1, 2, and 3) may be referred to as subset A, and the antenna ports mapped to the second OFDM symbol (shown as antenna ports 4, 5, 6, and 7) may be referred to as subset B. In some aspects, in conjunction with Figure 7 The described UE and network node can send and receive SRS of Example 1300, respectively.

[0164] As shown in the figure, the first frequency hopping mode can include SRS transmitted on multiple antenna ports of a first plurality of OFDM symbols in a first timing allocated to SRS resources. Additionally, the first frequency hopping mode can include repetitions of SRS transmitted on multiple antenna ports of a second plurality of OFDM symbols in the first timing allocated to SRS resources. By treating the first plurality of OFDM symbols and the second plurality of OFDM symbols in the first timing of SRS resources as a single OFDM symbol (e.g., a single cell), these SRS and SRS repetitions can be counted as first SRS transmissions (by n) in conjunction with determining the frequency hopping mode (using Equation 2). SRS ).

[0165] Furthermore, the second frequency hopping mode can include SRS transmitted on multiple antenna ports of a third plurality of OFDM symbols in the first timing allocated to SRS resources. Additionally, the second frequency hopping mode can include repetitions of SRS transmitted on multiple antenna ports of a fourth plurality of OFDM symbols in the first timing allocated to SRS resources. By treating the third plurality of OFDM symbols and the fourth plurality of OFDM symbols in the first timing of SRS resources as a single OFDM symbol (e.g., a single cell), these SRS and SRS repetitions can be counted as second SRS transmissions (by n) in conjunction with determining the frequency hopping mode (using Equation 2). SRS ).

[0166] Furthermore, the third frequency hopping in the frequency hopping mode may include SRS transmitted on multiple antenna ports of the first plurality of OFDM symbols in the second timing allocated to SRS resources. Additionally, the third frequency hopping may include repetitions of SRS transmitted on multiple antenna ports of the second plurality of OFDM symbols in the second timing allocated to SRS resources. By treating the first plurality of OFDM symbols and the second plurality of OFDM symbols in the second timing of SRS resources as a single OFDM symbol (e.g., a single cell), these SRS and SRS repetitions can be counted as third SRS transmissions (by n) in conjunction with determining the frequency hopping mode (using Equation 2). SRS ).

[0167] Furthermore, the fourth frequency hopping in the frequency hopping mode may include SRS transmitted on multiple antenna ports of the third plurality of OFDM symbols in the second timing allocated to SRS resources. Additionally, the fourth frequency hopping may include repetitions of SRS transmitted on multiple antenna ports of the fourth plurality of OFDM symbols in the second timing allocated to SRS resources. By treating the third plurality of OFDM symbols and the fourth plurality of OFDM symbols in the second timing of SRS resources as a single OFDM symbol (e.g., a single cell), these SRS and SRS repetitions can be counted as fourth SRS transmissions (by n) in conjunction with determining the frequency hopping mode (using Equation 2). SRS ).

[0168] As noted above, Figure 1300 is provided as an example. Other examples may differ from those described with respect to Figure 1300.

[0169] Figure 14 This is a diagram illustrating an example procedure 1400 performed by a UE, for example, in accordance with this disclosure. Example procedure 1400 is an example in which a UE (e.g., UE 120) performs operations associated with SRS frequency hopping for distributed antenna port mapping.

[0170] like Figure 14 As shown, in some aspects, process 1400 may include: receiving configuration information indicating a set of SRS resources including SRS resources associated with multiple antenna ports, and the multiple antenna ports having a distributed mapping to multiple OFDM symbols of the SRS resources (box 1410). For example, a UE (e.g., using...) Figure 16 The receiving component 1602 and / or communication manager 1606 described herein can receive configuration information indicating a set of SRS resources including SRS resources, the SRS resources being associated with multiple antenna ports, and the multiple antenna ports having a distributed mapping to multiple OFDM symbols of the SRS resources, as described above.

[0171] like Figure 14As further shown, in some aspects, process 1400 may include: transmitting multiple SRSs on multiple antenna ports in multiple OFDM symbols of the SRS resource using a frequency hopping mode as a function of the count of the number of SRS transmissions, and the count of the number of SRS transmissions is scaled by the number of multiple OFDM symbols (box 1420). For example, the UE (e.g., using...) Figure 16 The transmitting component 1604 and / or the communication manager 1606 described herein may use a frequency hopping mode, which is a function of the count of the number of SRS transmissions, to transmit multiple SRSs on multiple antenna ports in multiple OFDM symbols of the SRS resource, and the count of the number of SRS transmissions is scaled by the number of multiple OFDM symbols, as described above.

[0172] Process 1400 may include additional aspects, such as any single aspect or any combination of aspects described below and / or in conjunction with one or more other processes described elsewhere herein.

[0173] In the first aspect, the counting of SRS transmissions is based at least in part on multiple OFDM symbols being counted as a single OFDM symbol.

[0174] In the second aspect, either alone or in combination with the first aspect, multiple SRSs in multiple OFDM symbols are counted as a single SRS transmission.

[0175] In the third aspect, either alone or in combination with one or more of the first and second aspects, the repetition factor for SRS resources is applied to multiple OFDM symbols as a single unit.

[0176] In the fourth aspect, transmitting multiple SRS, either alone or in combination with one or more of the first to third aspects, includes: transmitting multiple SRS in an SRS resource during a single frequency hop in a frequency hopping mode, and transmitting one or more repetitions of multiple SRS.

[0177] In the fifth aspect, either alone or in combination with one or more of the first to fourth aspects, multiple SRSs and one or more repetitions of multiple SRSs are counted as a single SRS transmission.

[0178] In the sixth aspect, either alone or in combination with one or more of the first to fifth aspects, the count of the number of SRS transmissions is scaled by the number of multiple OFDM symbols.

[0179] In the seventh aspect, transmitting multiple SRS, either alone or in combination with one or more of the first to sixth aspects, includes: transmitting multiple SRS on multiple antenna ports in a first multiple OFDM symbol of the SRS resource during a first frequency hopping mode, and process 1400 may include: transmitting additional SRS on multiple antenna ports in a second OFDM symbol of the SRS resource during a second frequency hopping mode.

[0180] In the eighth aspect, transmitting multiple SRS, either alone or in combination with one or more of the first to seventh aspects, includes: transmitting multiple SRS on multiple antenna ports in a first multiple OFDM symbol at a first timing of the SRS resource during a first frequency hop in a frequency hop mode, and the process 1400 may further include: transmitting multiple SRS on multiple antenna ports in a second multiple OFDM symbol at a second timing of the SRS resource during a second frequency hop in a frequency hop mode.

[0181] Although Figure 14 An example box of process 1400 is shown, but in some aspects, process 1400 may include... Figure 14 The boxes depicted in the diagram are compared to additional boxes, fewer boxes, different boxes, or boxes arranged in a different manner. Alternatively, two or more boxes in process 1400 may be executed in parallel.

[0182] Figure 15 This is a diagram illustrating an example process 1500 performed, for example, by a network node according to this disclosure. Example process 1500 is an example in which a network node (e.g., network node 110) performs operations associated with SRS frequency hopping for distributed antenna port mapping.

[0183] like Figure 15 As shown, in some aspects, process 1500 may include: transmitting configuration information indicating a set of SRS resources including SRS resources associated with multiple antenna ports, and the multiple antenna ports having a distributed mapping to multiple OFDM symbols of the SRS resources (box 1510). For example, network nodes (e.g., using...) Figure 17 The transmitting component 1704 and / or the communication manager 1706 described herein can transmit configuration information indicating a set of SRS resources including SRS resources, the SRS resources being associated with multiple antenna ports, and the multiple antenna ports having a distributed mapping to multiple OFDM symbols of the SRS resources, as described above.

[0184] like Figure 15As further shown, in some aspects, process 1500 may include: receiving multiple SRSs on multiple antenna ports in multiple OFDM symbols of the SRS resource using a frequency hopping mode as a function of the count of the number of SRS transmissions, and the count of the number of SRS transmissions is scaled by the number of multiple OFDM symbols (box 1520). For example, a network node (e.g., using...) Figure 17 The receiving component 1702 and / or communication manager 1706 described herein can use a frequency hopping mode, which is a function of the count of the number of SRS transmissions, to receive multiple SRS on multiple antenna ports in multiple OFDM symbols of the SRS resource, and the count of the number of SRS transmissions is scaled by the number of multiple OFDM symbols, as described above.

[0185] Process 1500 may include additional aspects, such as any single aspect or any combination of aspects described below and / or in conjunction with one or more other processes described elsewhere herein.

[0186] In the first aspect, the counting of SRS transmissions is based at least in part on multiple OFDM symbols being counted as a single OFDM symbol.

[0187] In the second aspect, either alone or in combination with the first aspect, multiple SRSs in multiple OFDM symbols are counted as a single SRS transmission.

[0188] In the third aspect, either alone or in combination with one or more of the first and second aspects, the repetition factor for SRS resources is applied to multiple OFDM symbols as a single unit.

[0189] In the fourth aspect, receiving multiple SRS, either alone or in combination with one or more of the first to third aspects, includes: receiving multiple SRS in an SRS resource during a single frequency hop in a frequency hopping mode, and receiving one or more repetitions of multiple SRS.

[0190] In the fifth aspect, either alone or in combination with one or more of the first to fourth aspects, multiple SRSs and one or more repetitions of multiple SRSs are counted as a single SRS transmission.

[0191] In the sixth aspect, either alone or in combination with one or more of the first to fifth aspects, the count of the number of SRS transmissions is scaled by the number of multiple OFDM symbols.

[0192] In the seventh aspect, receiving multiple SRS, either alone or in combination with one or more of the first to sixth aspects, includes: receiving multiple SRS on multiple antenna ports in a first plurality of OFDM symbols of the SRS resource during a first frequency hopping mode, and process 1500 may include: receiving multiple SRS on multiple antenna ports in a second plurality of OFDM symbols of the SRS resource during a second frequency hopping mode.

[0193] In the eighth aspect, receiving multiple SRS, either alone or in combination with one or more of the first to seventh aspects, includes: receiving multiple SRS on multiple antenna ports in a first multiple OFDM symbol at a first timing of SRS resources during a first frequency hop in a frequency hop mode, and process 1500 may include: receiving multiple SRS on multiple antenna ports in a second multiple OFDM symbol at a second timing of SRS resources during a second frequency hop in a frequency hop mode.

[0194] Although Figure 15 An example box of process 1500 is shown, but in some aspects, process 1500 may include... Figure 15 The boxes depicted in the diagram are compared to additional boxes, fewer boxes, different boxes, or boxes arranged in a different manner. Alternatively, two or more boxes in process 1500 may be executed in parallel.

[0195] Figure 16 This is a diagram of an example device 1600 for wireless communication according to the present disclosure. Device 1600 may be a UE, or a UE may include device 1600. In some aspects, device 1600 includes a receiving component 1602, a transmitting component 1604, and / or a communication manager 1606, which can communicate with each other (e.g., via one or more buses and / or one or more other components). In some aspects, communication manager 1606 is combined with... Figure 1 The communication manager 140 is described. As shown, the device 1600 can communicate with another device 1608 (such as a UE or a network node (such as a CU, DU, RU or base station)) using the receiving component 1602 and the transmitting component 1604.

[0196] In some respects, device 1600 can be configured to perform the functions described herein. Figures 7-13 One or more operations described herein. Alternatively or concurrently, the apparatus 1600 may be configured to perform one or more processes described herein, such as... Figure 14 The process 1400 or a combination thereof. In some respects, Figure 16 The device 1600 and / or one or more components shown may include a combination Figure 2 One or more components of the UE as described. Alternatively or in addition,Figure 16 One or more components shown can be combined Figure 2 The description refers to implementation within one or more components. Alternatively, one or more components in the set of components may be implemented, at least partially, as software stored in memory. For example, a component (or a portion of a component) may be implemented as instructions or code stored in a non-transitory computer-readable medium and executable by a controller or processor to perform the function or operation of the component.

[0197] Receiver 1602 may receive communications from device 1608, such as reference signals, control information, data communications, or combinations thereof. Receiver 1602 may provide the received communications to one or more other components of device 1600. In some aspects, receiver 1602 may perform signal processing on the received communications (e.g., filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, demapping, equalization, interference cancellation, or decoding, and other examples), and may provide the processed signal to one or more other components of device 1600. In some aspects, receiver 1602 may include combinations of... Figure 2 The described UE includes one or more antennas, modems, demodulators, MIMO detectors, receiver processors, controllers / processors, memory, or combinations thereof.

[0198] Transmitting component 1604 can transmit communications, such as reference signals, control information, data communications, or combinations thereof, to device 1608. In some aspects, one or more other components of device 1600 can generate communications and provide the generated communications to transmitting component 1604 for transmission to device 1608. In some aspects, transmitting component 1604 can perform signal processing (e.g., filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding, and other examples) on the generated communications and can transmit the processed signal to device 1608. In some aspects, transmitting component 1604 can include combinations of... Figure 2 The described UE includes one or more antennas, modems, modulators, transmit MIMO processors, transmit processors, controllers / processors, memory, or combinations thereof. In some aspects, transmit component 1604 may be co-located with receive component 1602 in a transceiver.

[0199] The communication manager 1606 can support the operation of the receiving component 1602 and / or the transmitting component 1604. For example, the communication manager 1606 can receive information associated with configuring the receiving component 1602 to receive communication and / or the transmitting component 1604 to transmit communication. Alternatively, the communication manager 1606 can generate control information and / or provide control information to the receiving component 1602 and / or the transmitting component 1604 to control the reception and / or transmission of communication.

[0200] The receiving component 1602 can receive configuration information indicating a set of SRS resources, including SRS resources associated with multiple antenna ports, and the multiple antenna ports having a distributed mapping to multiple OFDM symbols of the SRS resources. The transmitting component 1604 can transmit multiple SRSs on multiple antenna ports in the multiple OFDM symbols of the SRS resources using a frequency hopping mode as a function of the count of the number of SRS transmissions, and the count of the number of SRS transmissions is scaled by the number of multiple OFDM symbols.

[0201] Figure 16 The number and arrangement of components shown are provided as an example. In reality, they can exist in combination with... Figure 16 The components shown are compared to additional components, fewer components, different components, or components arranged in a different way. Furthermore, Figure 16 The two or more components shown can be implemented within a single component, or Figure 16 The single component shown can be implemented as multiple distributed components. Alternatively, Figure 16 The set (one or more) components shown can perform actions described by Figure 16 The other set of components shown performs one or more functions.

[0202] Figure 17 This is a diagram of an example device 1700 for wireless communication according to the present disclosure. Device 1700 may be a network node, or a network node may include device 1700. In some aspects, device 1700 includes a receiving component 1702, a transmitting component 1704, and / or a communication manager 1706, which can communicate with each other (e.g., via one or more buses and / or one or more other components). In some aspects, communication manager 1706 is combined with... Figure 1 The communication manager 150 is described. As shown, the device 1700 can communicate with another device 1708 (such as a UE or a network node (such as a CU, DU, RU or base station)) using the receiving component 1702 and the transmitting component 1704.

[0203] In some respects, device 1700 can be configured to perform the functions described herein. Figures 7-13 One or more operations described herein. Alternatively or concurrently, the apparatus 1700 may be configured to perform one or more processes described herein, such as... Figure 15 The process 1500 or a combination thereof. In some respects, Figure 17 The device 1700 and / or one or more components shown may include a combination Figure 2 One or more components of the described network node. Alternatively, Figure 17One or more components shown can be combined Figure 2 The description refers to implementation within one or more components. Alternatively, one or more components in the set of components may be implemented, at least partially, as software stored in memory. For example, a component (or a portion of a component) may be implemented as instructions or code stored in a non-transitory computer-readable medium and executable by a controller or processor to perform the function or operation of the component.

[0204] Receiver 1702 may receive communications from device 1708, such as reference signals, control information, data communications, or combinations thereof. Receiver 1702 may provide the received communications to one or more other components of device 1700. In some aspects, receiver 1702 may perform signal processing on the received communications (e.g., filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, demapping, equalization, interference cancellation, or decoding, and other examples), and may provide the processed signal to one or more other components of device 1700. In some aspects, receiver 1702 may include combinations of... Figure 2 The described network node includes one or more antennas, modems, demodulators, MIMO detectors, receiver processors, controllers / processors, memory, or combinations thereof. In some aspects, receiver component 1702 and / or transmitter component 1704 may include or be included in a network interface. The network interface may be configured to acquire and / or output signals for device 1700 via one or more communication links (such as backhaul links, midhaul links, and / or forward links).

[0205] Transmitting component 1704 can transmit communications, such as reference signals, control information, data communications, or combinations thereof, to device 1708. In some aspects, one or more other components of device 1700 can generate communications and provide the generated communications to transmitting component 1704 for transmission to device 1708. In some aspects, transmitting component 1704 can perform signal processing (e.g., filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding, and other examples) on the generated communications and can transmit the processed signals to device 1708. In some aspects, transmitting component 1704 can include combinations of... Figure 2 The described network node includes one or more antennas, modems, modulators, transmit MIMO processors, transmit processors, controllers / processors, memory, or combinations thereof. In some aspects, the transmit component 1704 may be co-located with the receive component 1702 in a transceiver.

[0206] The communication manager 1706 can support the operation of the receiving component 1702 and / or the transmitting component 1704. For example, the communication manager 1706 can receive information associated with configuring the receiving component 1702 to receive communication and / or the transmitting component 1704 to transmit communication. Alternatively, the communication manager 1706 can generate control information and / or provide control information to the receiving component 1702 and / or the transmitting component 1704 to control the reception and / or transmission of communication.

[0207] Transmitting component 1704 can transmit configuration information indicating a set of SRS resources, including SRS resources associated with multiple antenna ports, and the multiple antenna ports having a distributed mapping to multiple OFDM symbols of the SRS resources. Receiving component 1702 can receive multiple SRSs on multiple antenna ports in the multiple OFDM symbols of the SRS resources using a frequency hopping mode as a function of the count of the number of SRS transmissions, and the count of the number of SRS transmissions is scaled by the number of multiple OFDM symbols.

[0208] Figure 17 The number and arrangement of components shown are provided as an example. In reality, they can exist in combination with... Figure 17 The components shown are compared to additional components, fewer components, different components, or components arranged in a different way. Furthermore, Figure 17 The two or more components shown can be implemented within a single component, or Figure 17 The single component shown can be implemented as multiple distributed components. Alternatively, Figure 17 The set (one or more) components shown can perform actions described by Figure 17 The other set of components shown performs one or more functions.

[0209] The following provides a summary of some aspects of this disclosure:

[0210] Aspect 1: A method of wireless communication performed by a user equipment (UE), comprising: receiving configuration information indicating a set of SRS resources including probe reference signal (SRS) resources, the SRS resources being associated with a plurality of antenna ports and the plurality of antenna ports having a distributed mapping to a plurality of orthogonal frequency division multiplexing (OFDM) symbols of the SRS resources; and transmitting a plurality of SRSs on the plurality of antenna ports in the plurality of OFDM symbols of the SRS resources in a single frequency hopping mode.

[0211] Aspect 2: According to the method of aspect 1, wherein the frequency hopping mode is a function of the count of the number of SRS transmissions, and the count of the number of SRS transmissions is at least partially based on the plurality of OFDM symbols being counted as a single OFDM symbol.

[0212] Aspect 3: The method according to any one of Aspects 1-2, wherein the frequency hopping mode is a function of the number of SRS transmissions, and the plurality of SRSs in the plurality of OFDM symbols are counted as a single SRS transmission.

[0213] Aspect 4: The method according to any one of Aspects 1-3, wherein the repetition factor for the SRS resource is applicable to the plurality of OFDM symbols as a single unit.

[0214] Aspect 5: The method according to any one of Aspects 1-4, wherein transmitting the plurality of SRSs comprises: transmitting the plurality of SRSs and one or more repetitions of the plurality of SRSs in the SRS resource during the single frequency hop of the frequency hopping mode.

[0215] Aspect 6: According to the method of aspect 5, wherein the frequency hopping mode is a function of the number of SRS transmissions, and the plurality of SRSs and the one or more repetitions of the plurality of SRSs are counted as a single SRS transmission.

[0216] Aspect 7: The method according to any one of Aspects 1-6, wherein the frequency hopping mode is a function of a count of the number of SRS transmissions, and the count of the number of SRS transmissions is scaled by the number of the plurality of OFDM symbols.

[0217] Aspect 8: The method according to any one of Aspects 1-7, wherein transmitting the plurality of SRS comprises: transmitting the plurality of SRS on the plurality of antenna ports in a first plurality of OFDM symbols of the SRS resource during a first frequency hop of the frequency hopping mode, and wherein the method further comprises: transmitting additional SRS on the plurality of antenna ports in a second OFDM symbol of the SRS resource during a second frequency hop of the frequency hopping mode.

[0218] Aspect 9: The method according to any one of Aspects 1-8, wherein transmitting the plurality of SRS comprises: transmitting the plurality of SRS on the plurality of antenna ports in a first plurality of OFDM symbols at a first timing of the SRS resource during a first frequency hop of the frequency hopping mode, and wherein the method further comprises: transmitting the plurality of SRS on the plurality of antenna ports in a second plurality of OFDM symbols at a second timing of the SRS resource during a second frequency hop of the frequency hopping mode.

[0219] Aspect 10: A method of wireless communication performed by a network node, comprising: transmitting configuration information indicating a set of SRS resources including probe reference signal (SRS) resources, the SRS resources being associated with a plurality of antenna ports and the plurality of antenna ports having a distributed mapping to a plurality of orthogonal frequency division multiplexing (OFDM) symbols of the SRS resources; and receiving a plurality of SRSs on the plurality of antenna ports in the plurality of OFDM symbols of the SRS resources during a single frequency hopping mode.

[0220] Aspect 11: According to the method of aspect 10, wherein the frequency hopping mode is a function of the count of the number of SRS transmissions, and the count of the number of SRS transmissions is at least partially based on the plurality of OFDM symbols being counted as a single OFDM symbol.

[0221] Aspect 12: The method according to any one of Aspects 10-11, wherein the frequency hopping mode is a function of the number of SRS transmissions, and the plurality of SRSs in the plurality of OFDM symbols are counted as a single SRS transmission.

[0222] Aspect 13: The method according to any one of Aspects 10-12, wherein the repetition factor for the SRS resource is applicable to the plurality of OFDM symbols as a single unit.

[0223] Aspect 14: The method according to any one of Aspects 10-13, wherein receiving the plurality of SRSs comprises: receiving the plurality of SRSs and one or more repetitions of the plurality of SRSs in the SRS resource during the single frequency hop of the frequency hopping mode.

[0224] Aspect 15: According to the method of aspect 14, wherein the frequency hopping mode is a function of the number of SRS transmissions, and the plurality of SRSs and the one or more repetitions of the plurality of SRSs are counted as a single SRS transmission.

[0225] Aspect 16: The method according to any one of Aspects 10-15, wherein the frequency hopping mode is a function of a count of the number of SRS transmissions, and the count of the number of SRS transmissions is scaled by the number of the plurality of OFDM symbols.

[0226] Aspect 17: The method according to any one of Aspects 10-16, wherein receiving the plurality of SRS comprises: receiving the plurality of SRS on the plurality of antenna ports in a first plurality of OFDM symbols of the SRS resource during a first frequency hop of the frequency hopping mode, and wherein the method further comprises: receiving the plurality of SRS on the plurality of antenna ports in a second plurality of OFDM symbols of the SRS resource during a second frequency hop of the frequency hopping mode.

[0227] Aspect 18: The method according to any one of Aspects 10-17, wherein receiving the plurality of SRS comprises: receiving the plurality of SRS on the plurality of antenna ports in a first plurality of OFDM symbols at a first timing of the SRS resource during a first frequency hop of the frequency hopping mode, and wherein the method further comprises: receiving the plurality of SRS on the plurality of antenna ports in a second plurality of OFDM symbols at a second timing of the SRS resource during a second frequency hop of the frequency hopping mode.

[0228] Aspect 19: An apparatus for wireless communication at a device, comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform the method according to one or more of aspects 1-18.

[0229] Aspect 20: A device for wireless communication, comprising a memory and one or more processors coupled to the memory, the one or more processors being configured to perform the method according to one or more of aspects 1-18.

[0230] Aspect 21: An apparatus for wireless communication, comprising at least one unit for performing the method according to one or more of aspects 1-18.

[0231] Aspect 22: A non-transitory computer-readable medium storing code for wireless communication, said code including instructions executable by a processor to perform the methods described in one or more of aspects 1-18.

[0232] Aspect 23: A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions comprising one or more instructions which, when executed by one or more processors of a device, cause the device to perform the method according to one or more of aspects 1-18.

[0233] Aspect 24: A method of wireless communication performed by a user equipment (UE), comprising: receiving configuration information indicating a set of SRS resources including probe reference signal (SRS) resources, the SRS resources being associated with a plurality of antenna ports and the plurality of antenna ports having a distributed mapping to a plurality of orthogonal frequency division multiplexing (OFDM) symbols of the SRS resources; and transmitting a plurality of SRSs on the plurality of antenna ports in the plurality of OFDM symbols of the SRS resources using a frequency hopping mode as a function of a count of the number of SRS transmissions, wherein the count of the number of SRS transmissions is scaled by the number of the plurality of OFDM symbols.

[0234] Aspect 25: According to the method of aspect 24, wherein the count of the number of SRS transmissions is at least partially based on the plurality of OFDM symbols being counted as a single OFDM symbol.

[0235] Aspect 26: The method according to any one of Aspects 24-25, wherein the plurality of SRSs in the plurality of OFDM symbols are counted as a single SRS transmission.

[0236] Aspect 27: The method according to any one of Aspects 24-26, wherein the repetition factor for the SRS resource is applicable to the plurality of OFDM symbols as a single unit.

[0237] Aspect 28: The method according to any one of Aspects 24-27, wherein transmitting the plurality of SRS comprises: transmitting the plurality of SRS and one or more repetitions of the plurality of SRS in the SRS resource during a single frequency hop of the frequency hopping mode.

[0238] Aspect 29: According to the method of aspect 28, wherein the plurality of SRSs and the one or more repetitions of the plurality of SRSs are counted as a single SRS transmission.

[0239] Aspect 30: The method according to any one of Aspects 24-29, wherein transmitting the plurality of SRS comprises: transmitting the plurality of SRS on the plurality of antenna ports in a first plurality of OFDM symbols of the SRS resource during a first frequency hop of the frequency hopping mode, and wherein the method further comprises: transmitting additional SRS on the plurality of antenna ports in a second OFDM symbol of the SRS resource during a second frequency hop of the frequency hopping mode.

[0240] Aspect 31: The method according to any one of Aspects 24-30, wherein transmitting the plurality of SRS comprises: transmitting the plurality of SRS on the plurality of antenna ports in a first plurality of OFDM symbols at a first timing of the SRS resource during a first frequency hop of the frequency hopping mode, and wherein the method further comprises: transmitting the plurality of SRS on the plurality of antenna ports in a second plurality of OFDM symbols at a second timing of the SRS resource during a second frequency hop of the frequency hopping mode.

[0241] Aspect 32: A method of wireless communication performed by a network node, comprising: transmitting configuration information indicating a set of SRS resources including probe reference signal (SRS) resources, the SRS resources being associated with a plurality of antenna ports and the plurality of antenna ports having a distributed mapping to a plurality of orthogonal frequency division multiplexing (OFDM) symbols of the SRS resources; and receiving a plurality of SRSs on the plurality of antenna ports in the plurality of OFDM symbols of the SRS resources using a frequency hopping mode as a function of a count of the number of SRS transmissions, wherein the count of the number of SRS transmissions is scaled by the number of the plurality of OFDM symbols.

[0242] Aspect 33: According to the method of aspect 32, wherein the count of the number of SRS transmissions is at least partially based on the plurality of OFDM symbols being counted as a single OFDM symbol.

[0243] Aspect 34: The method according to any one of aspects 32-33, wherein the plurality of SRSs in the plurality of OFDM symbols are counted as a single SRS transmission.

[0244] Aspect 35: The method according to any one of aspects 32-34, wherein the repetition factor for the SRS resource is applicable to the plurality of OFDM symbols as a single unit.

[0245] Aspect 36: The method according to any one of aspects 32-35, wherein receiving the plurality of SRSs comprises: receiving the plurality of SRSs and one or more repetitions of the plurality of SRSs in the SRS resource during a single frequency hop of the frequency hopping mode.

[0246] Aspect 37: According to the method of aspect 36, wherein the plurality of SRSs and the one or more repetitions of the plurality of SRSs are counted as a single SRS transmission.

[0247] Aspect 38: The method according to any one of Aspects 32-37, wherein receiving the plurality of SRS comprises: receiving the plurality of SRS on the plurality of antenna ports in a first plurality of OFDM symbols of the SRS resource during a first frequency hop of the frequency hopping mode, and wherein the method further comprises: receiving the plurality of SRS on the plurality of antenna ports in a second plurality of OFDM symbols of the SRS resource during a second frequency hop of the frequency hopping mode.

[0248] Aspect 39: The method according to any one of Aspects 32-38, wherein receiving the plurality of SRS comprises: receiving the plurality of SRS on the plurality of antenna ports in a first plurality of OFDM symbols at a first timing of the SRS resource during a first frequency hop of the frequency hopping mode, and wherein the method further comprises: receiving the plurality of SRS on the plurality of antenna ports in a second plurality of OFDM symbols at a second timing of the SRS resource during a second frequency hop of the frequency hopping mode.

[0249] Aspect 40: An apparatus for wireless communication at a device, the apparatus comprising one or more processors; one or more memories coupled to the one or more processors; and instructions stored in the one or more memories and executable by the one or more processors to cause the apparatus to perform the method according to one or more of aspects 1-39.

[0250] Aspect 41: An apparatus for wireless communication at a device, the apparatus comprising one or more memories and one or more processors coupled to the one or more memories, the one or more processors being configured to cause the device to perform the method according to one or more of aspects 1-39.

[0251] Aspect 42: An apparatus for wireless communication, the apparatus comprising at least one unit for performing the method according to one or more of aspects 1-39.

[0252] Aspect 43: A non-transitory computer-readable medium storing code for wireless communication, said code including instructions executable by one or more processors to perform the methods described in one or more of aspects 1-39.

[0253] Aspect 44: A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions comprising one or more instructions which, when executed by one or more processors of a device, cause the device to perform the method according to one or more of aspects 1-39.

[0254] Aspect 45: A device for wireless communication, the device including a processing system comprising one or more processors and one or more memories coupled to the one or more processors, the processing system being configured to cause the device to perform the method according to one or more of aspects 1-39.

[0255] Aspect 46: An apparatus for wireless communication at a device, the apparatus comprising one or more memories and one or more processors coupled to the one or more memories, the one or more processors being individually or collectively configured to cause the device to perform one or more of the methods according to aspects 1-39.

[0256] The above disclosure provides illustrations and descriptions, but is not intended to be exhaustive, nor is it intended to limit these aspects to the precise form disclosed. Modifications and variations may be made based on the above disclosure, or from practice in these aspects.

[0257] As used herein, the term "component" is intended to be interpreted broadly as hardware and / or a combination of hardware and software. Whether referred to as software, firmware, middleware, microcode, hardware description language, or other names, "software" should be interpreted broadly as instructions, instruction sets, code, code segments, program code, programs, subroutines, software modules, applications, software applications, software packages, routines, subroutines, objects, executable files, threads of execution, procedures and / or functions, and other examples. As used herein, a "processor" is implemented using hardware and / or a combination of hardware and software. It will be apparent to those skilled in the art that the systems and / or methods described herein can be implemented using various forms of hardware and / or combinations of hardware and software. The actual specialized control hardware or software code used to implement these systems and / or methods is not intended to limit any aspect. Therefore, the operation and behavior of the systems and / or methods are described herein without reference to specific software code, as those skilled in the art will understand that software and hardware can be designed to implement the systems and / or methods, at least in part, based on the descriptions herein.

[0258] As used in this article, depending on the context, "meeting the threshold" can refer to a value that is greater than the threshold, greater than or equal to the threshold, less than the threshold, less than or equal to the threshold, equal to the threshold, not equal to the threshold, etc.

[0259] Although specific combinations of features are recited in the claims and / or disclosed in the specification, these combinations are not intended to limit the disclosure of the aspects. Many features may be combined in ways not specifically recited in the claims and / or disclosed in the specification. The disclosure of an aspect includes each dependent claim in combination with each other claim in the set of claims. As used herein, the phrase “at least one of” refers to any combination of these items (including a single member). For example, “at least one of a, b, or c” is intended to cover a, b, c, a+b, a+c, b+c, and a+b+c, as well as any combination having multiple identical elements (e.g., a+a, a+a+a, a+a+b, a+a+c, a+b+b, a+c+c, b+b, b+b+b, b+b+c, c+c, and c+c+c, or any other ordering of a, b, and c).

[0260] No element, action, or instruction used herein should be construed as critical or fundamental unless explicitly stated otherwise. Furthermore, as used herein, the articles “a” and “an” are intended to include one or more items and may be used interchangeably with “one or more.” Furthermore, as used herein, the article “the” is intended to include one or more items referred to in conjunction with the article “the” and may be used interchangeably with “one or more.” Furthermore, as used herein, the terms “set” and “group” are intended to include one or more items and may be used interchangeably with “one or more.” If only one item is desired, the phrase “only one” or similar terminology will be used. Furthermore, as used herein, the terms “has,” “have,” “having,” etc., are intended to be open-ended terms that do not limit the elements they modify (e.g., an element of “having” A may also have B). Furthermore, the phrase “based on” is intended to mean “at least partially based on” unless otherwise explicitly stated. Furthermore, as used herein, the term “or” is intended to be inclusive when used in a series and may be used interchangeably with “and / or” unless otherwise explicitly stated (e.g., if used in conjunction with “any” or “only one of”).

Claims

1. An apparatus for wireless communication at a user equipment (UE), comprising: Memory; as well as One or more processors coupled to the memory are configured to: The receiving indication includes configuration information of a set of SRS resources for a sounding reference signal (SRS) resource, the SRS resource being associated with multiple antenna ports, and the multiple antenna ports having a distributed mapping to multiple orthogonal frequency division multiplexing (OFDM) symbols of the SRS resource; as well as A frequency hopping mode, using a count as a function of the number of SRS transmissions, transmits multiple SRSs on multiple antenna ports in the multiple OFDM symbols of the SRS resource, and the count of the number of SRS transmissions is scaled by the number of the multiple OFDM symbols.

2. The apparatus according to claim 1, wherein, The count of the number of SRS transmissions is at least in part based on the fact that the plurality of OFDM symbols are counted as a single OFDM symbol.

3. The apparatus according to claim 1, wherein, The multiple SRSs in the multiple OFDM symbols are counted as a single SRS transmission.

4. The apparatus according to claim 1, wherein, The repetition factor used for the SRS resource applies to the plurality of OFDM symbols as a single unit.

5. The apparatus according to claim 1, wherein, In order to transmit the plurality of SRSs, the one or more processors are configured to: In a single frequency hop of the frequency hopping mode, the plurality of SRSs and one or more repetitions of the plurality of SRSs are transmitted in the SRS resource.

6. The apparatus according to claim 5, wherein, The plurality of SRSs and the one or more repetitions of the plurality of SRSs are counted as a single SRS transmission.

7. The apparatus according to claim 1, wherein, In order to transmit the plurality of SRSs, the one or more processors are configured to: In the first frequency hop of the frequency hopping mode, the plurality of SRS are transmitted on the plurality of antenna ports in the first plurality of OFDM symbols of the SRS resource, and The one or more processors are further configured to: In the second frequency hopping of the frequency hopping mode, additional SRS is transmitted on the plurality of antenna ports in the second OFDM symbol of the SRS resource.

8. The apparatus according to claim 1, wherein, In order to transmit the plurality of SRSs, the one or more processors are configured to: In the first frequency hopping of the frequency hopping mode, the plurality of SRS are transmitted on the plurality of antenna ports in the first plurality of OFDM symbols at the first timing of the SRS resource, and The one or more processors are further configured to: In the second frequency hopping of the frequency hopping mode, the plurality of SRS are transmitted on the plurality of antenna ports in the second plurality of OFDM symbols at the second timing of the SRS resource.

9. An apparatus for wireless communication at a network node, comprising: Memory; as well as One or more processors coupled to the memory are configured to: The transmission instruction includes configuration information for a set of SRS resources of a probe reference signal (SRS) resource associated with multiple antenna ports, and the multiple antenna ports having a distributed mapping to multiple orthogonal frequency division multiplexing (OFDM) symbols of the SRS resource; as well as A frequency hopping mode, using a count as a function of the number of SRS transmissions, receives multiple SRSs on multiple antenna ports in the multiple OFDM symbols of the SRS resource, and the count of the number of SRS transmissions is scaled by the number of the multiple OFDM symbols.

10. The apparatus according to claim 9, wherein, The count of the number of SRS transmissions is at least in part based on the fact that the plurality of OFDM symbols are counted as a single OFDM symbol.

11. The apparatus according to claim 9, wherein, The multiple SRSs in the multiple OFDM symbols are counted as a single SRS transmission.

12. The apparatus according to claim 9, wherein, The repetition factor used for the SRS resource applies to the plurality of OFDM symbols as a single unit.

13. The apparatus according to claim 9, wherein, In order to receive the plurality of SRSs, the one or more processors are configured to: In a single frequency hop of the frequency hopping mode, the plurality of SRSs and one or more repetitions of the plurality of SRSs are received in the SRS resource.

14. The apparatus according to claim 13, wherein, The plurality of SRSs and the one or more repetitions of the plurality of SRSs are counted as a single SRS transmission.

15. The apparatus according to claim 9, wherein, In order to receive the plurality of SRSs, the one or more processors are configured to: In the first frequency hopping of the frequency hopping mode, the plurality of SRS are received on the plurality of antenna ports in the first plurality of OFDM symbols of the SRS resource, and The one or more processors are further configured to: In the second frequency hopping of the frequency hopping mode, the plurality of SRS are received on the plurality of antenna ports in the second plurality of OFDM symbols of the SRS resource.

16. The apparatus according to claim 9, wherein, In order to receive the plurality of SRSs, the one or more processors are configured to: In the first frequency hopping of the frequency hopping mode, the plurality of SRS are received on the plurality of antenna ports in the first plurality of OFDM symbols at the first timing of the SRS resource, and The one or more processors are further configured to: In the second frequency hopping of the frequency hopping mode, the plurality of SRS are received on the plurality of antenna ports in the second plurality of OFDM symbols at the second timing of the SRS resource.

17. A method for wireless communication performed by a user equipment (UE), comprising: The receiving indication includes configuration information of a set of SRS resources for a sounding reference signal (SRS) resource, the SRS resource being associated with multiple antenna ports, and the multiple antenna ports having a distributed mapping to multiple orthogonal frequency division multiplexing (OFDM) symbols of the SRS resource; as well as A frequency hopping mode, using a count as a function of the number of SRS transmissions, transmits multiple SRSs on multiple antenna ports in the multiple OFDM symbols of the SRS resource, and the count of the number of SRS transmissions is scaled by the number of the multiple OFDM symbols.

18. The method according to claim 17, wherein, The count of the number of SRS transmissions is at least in part based on the fact that the plurality of OFDM symbols are counted as a single OFDM symbol.

19. The method of claim 17, wherein, The multiple SRSs in the multiple OFDM symbols are counted as a single SRS transmission.

20. The method of claim 17, wherein, The repetition factor used for the SRS resource applies to the plurality of OFDM symbols as a single unit.

21. The method according to claim 17, wherein, Sending the plurality of SRSs includes: In a single frequency hop of the frequency hopping mode, the plurality of SRSs and one or more repetitions of the plurality of SRSs are transmitted in the SRS resource.

22. The method according to claim 21, wherein, The plurality of SRSs and the one or more repetitions of the plurality of SRSs are counted as a single SRS transmission.

23. The method according to claim 17, wherein, Sending the plurality of SRSs includes: In the first frequency hop of the frequency hopping mode, the plurality of SRS are transmitted on the plurality of antenna ports in the first plurality of OFDM symbols of the SRS resource, and The method further includes: In the second frequency hopping of the frequency hopping mode, additional SRS is transmitted on the plurality of antenna ports in the second OFDM symbol of the SRS resource.

24. The method according to claim 17, wherein, Sending the plurality of SRSs includes: In the first frequency hopping of the frequency hopping mode, the plurality of SRS are transmitted on the plurality of antenna ports in the first plurality of OFDM symbols at the first timing of the SRS resource, and The method further includes: In the second frequency hopping of the frequency hopping mode, the plurality of SRS are transmitted on the plurality of antenna ports in the second plurality of OFDM symbols at the second timing of the SRS resource.

25. A method for wireless communication performed by a network node, comprising: The transmission instruction includes configuration information for a set of SRS resources of a probe reference signal (SRS) resource associated with multiple antenna ports, and the multiple antenna ports having a distributed mapping to multiple orthogonal frequency division multiplexing (OFDM) symbols of the SRS resource; as well as A frequency hopping mode, using a count as a function of the number of SRS transmissions, receives multiple SRSs on multiple antenna ports in the multiple OFDM symbols of the SRS resource, and the count of the number of SRS transmissions is scaled by the number of the multiple OFDM symbols.

26. The method of claim 25, wherein, The count of the number of SRS transmissions is at least in part based on the fact that the plurality of OFDM symbols are counted as a single OFDM symbol.

27. The method according to claim 25, wherein, The multiple SRSs in the multiple OFDM symbols are counted as a single SRS transmission.

28. The method according to claim 25, wherein, The repetition factor used for the SRS resource applies to the plurality of OFDM symbols as a single unit.

29. The method according to claim 25, wherein, Receiving the plurality of SRSs includes: In a single frequency hop of the frequency hopping mode, the plurality of SRSs and one or more repetitions of the plurality of SRSs are received in the SRS resource.

30. The method according to claim 29, wherein, The plurality of SRSs and the one or more repetitions of the plurality of SRSs are counted as a single SRS transmission.

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