Full-power eight-port uplink transmission mode

Abstract

Aspects of the present disclosure generally relate to wireless communications. In some aspects, a user equipment (UE) may configure a total transmit power for a physical uplink shared channel (PUSCH) communication based on a pre-decoder and a total power scaling factor, the total power scaling factor including a sum of a plurality of power scaling factors associated with a set of transmit ports of the UE, each transmit port in the set of transmit ports corresponds to a power amplifier (PA) in a set of PAs. The UE may transmit the PUSCH communication to a network node based on the total transmit power. 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 / 378,024, filed on September 30, 2022, entitled "FULL POWER EIGHT-PORT UPLINK TRANSMISSION MODE" and U.S. Non-Provisional Patent Application No. 18 / 469,358, filed on September 18, 2023, entitled "FULL POWER EIGHT-PORT UPLINK TRANSMISSION MODE" and assigned to the assignee of this application. The disclosures of these prior applications are considered part of and incorporated by reference into this patent application. Technical Field

[0003] Aspects of the present disclosure relate generally to wireless communications, and to techniques and apparatus for a full-power eight-port uplink transmit mode. Background Art

[0004] Wireless communication systems are widely deployed to provide a variety of telecommunication services, such as telephony, video, data, messaging, and broadcasting. Typical wireless communication systems may employ multiple access technologies that can support communication with multiple users by sharing available system resources (e.g., bandwidth, transmit power, etc.). Examples of such multiple access technologies include code division multiple access (CDMA) systems, time division multiple access (TDMA) systems, frequency division multiple access (FDMA) systems, orthogonal frequency division multiple access (OFDMA) systems, single carrier frequency division multiple access (SC-FDMA) systems, time division synchronous code division multiple access (TD-SCDMA) systems, and long term evolution (LTE). LTE / LTE-Advanced is a set of enhancements to the Universal Mobile Telecommunications System (UMTS) mobile standard promulgated by the Third Generation Partnership Project (3GPP).

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

[0006] The above-mentioned multiple access technologies have been adopted in various telecommunication standards to provide a common protocol that enables different UEs to communicate at a city, country, region and / or global level. New Radio (NR) (which may be referred to as 5G) is a set of enhancements to the LTE mobile standard promulgated by 3GPP. NR is designed to better support mobile broadband Internet access by using orthogonal frequency division multiplexing (OFDM) (CP-OFDM) with a cyclic prefix (CP) on the downlink, using CP-OFDM and / or single carrier frequency division multiplexing (SC-FDM) (also known as discrete Fourier transform spread OFDM (DFT-s-OFDM)) on the uplink, and supporting beamforming, multiple input multiple output (MIMO) antenna technology and carrier aggregation to improve spectrum efficiency, reduce costs, improve services, utilize new spectrum, and better integrate with other open standards. As the demand for mobile broadband access continues to increase, further improvements in LTE, NR and other radio access technologies remain useful. Summary of the invention

[0007] Some aspects described herein relate to a user equipment (UE) for wireless communication. The user equipment may include one or more memories and one or more processors, the one or more processors being coupled to the one or more memories. The one or more processors may be configured individually or collectively to cause the UE to: configure a total transmit power for a physical uplink shared channel (PUSCH) communication based on a predecoder and a total power scaling factor, the total power scaling factor comprising a sum of multiple power scaling factors associated with a set of transmit ports of the UE, each transmit port in the set of transmit ports corresponding to a PA in a set of power amplifiers (PAs). The memory may include instructions that are executable by the one or more processors to cause the UE to: send the PUSCH communication to a network node based on the total transmit power.

[0008] Some aspects described herein relate to a network node for wireless communication. The network node may include one or more memories and one or more processors, the one or more processors being coupled to the one or more memories. The one or more processors may be configured individually or collectively to cause the network node to: receive a PUSCH communication from a UE having a total transmit power based on a predecoder and a total power scaling factor, the total power scaling factor comprising a sum of multiple power scaling factors associated with a set of transmit ports of the UE, each transmit port in the set of transmit ports corresponding to a PA in a set of PAs. The memory may include instructions that are executable by the one or more processors to cause the network node to: perform a wireless communication task based on receiving the PUSCH communication.

[0009] Some aspects described herein relate to a method of wireless communication performed by an apparatus at a UE. The method may include configuring a total transmit power for a PUSCH communication based on a pre-decoder and a total power scaling factor, the total power scaling factor comprising a sum of multiple power scaling factors associated with a set of transmit ports of the UE, each transmit port in the set of transmit ports corresponding to a PA in a set of PAs. The method may include sending the PUSCH communication to a network node based on the total transmit power.

[0010] Some aspects described herein relate to a method of wireless communication performed by an apparatus at a network node. The method may include receiving a PUSCH communication from a UE having a total transmit power based on a predecoder and a total power scaling factor, the total power scaling factor including a sum of multiple power scaling factors associated with a set of transmit ports of the UE, each transmit port in the set of transmit ports corresponding to a PA in a set of PAs. The method may include performing a wireless communication task based on receiving the PUSCH communication.

[0011] Some aspects described herein relate to a non-transitory computer-readable medium storing an instruction set for wireless communication by a UE. The instruction set, when executed by one or more processors of the UE, may cause the UE to: configure a total transmit power for PUSCH communication based on a predecoder and a total power scaling factor, the total power scaling factor comprising a sum of multiple power scaling factors associated with a set of transmit ports of the UE, each transmit port in the set of transmit ports corresponding to a PA in a set of PAs. The instruction set, when executed by one or more processors of the UE, may cause the UE to: send the PUSCH communication to a network node based on the total transmit power.

[0012] Some aspects described herein relate to a non-transitory computer-readable medium storing an instruction set for wireless communication by a network node. The instruction set, when executed by one or more processors of the network node, may cause the network node to: receive a PUSCH communication from a UE having a total transmit power based on a predecoder and a total power scaling factor, the total power scaling factor comprising a sum of multiple power scaling factors associated with a set of transmit ports of the UE, each transmit port in the set of transmit ports corresponding to a PA in a set of PAs. The instruction set, when executed by one or more processors of the network node, may cause the network node to: perform a wireless communication task based on receiving the PUSCH communication.

[0013] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include means for configuring a total transmit power for a PUSCH communication based on a pre-decoder and a total power scaling factor, the total power scaling factor including a sum of multiple power scaling factors associated with a set of transmit ports of the apparatus, each transmit port in the set of transmit ports corresponding to a PA in a set of PAs. The apparatus may include means for transmitting the PUSCH communication to a network node based on the total transmit power.

[0014] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include means for receiving a PUSCH communication from a UE having a total transmit power based on a predecoder and a total power scaling factor, the total power scaling factor including a sum of multiple power scaling factors associated with a set of transmit ports of the UE, each transmit port in the set of transmit ports corresponding to a PA in a set of PAs. The apparatus may include means for performing a wireless communication task based on receiving the PUSCH communication.

[0015] The various aspects generally 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 drawings and description and as illustrated in the drawings and description.

[0016] The features and technical advantages of examples according to the present disclosure have been outlined quite broadly above so that the following specific embodiments may be better understood. Additional features and advantages will be described below. The disclosed concepts and specific examples may be easily used as a basis for modifying or designing other structures for achieving the same purpose of the present disclosure. Such equivalent constructions do not depart from the scope of the appended claims. The characteristics of the concepts disclosed herein, both in terms of their organization and method of operation, and the associated advantages will be better understood by considering the following description in conjunction with the accompanying drawings. Each of the figures in the accompanying drawings is provided for the purpose of illustration and description and not as a definition of limitations to the claims.

[0017] Although various aspects are described in the present disclosure by illustrating some examples, it will be understood by those skilled in the art that such aspects can be implemented in many different arrangements and scenarios. The technology 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 implementations or other devices based on non-module components (e.g., end-user devices, vehicles, communication equipment, computing equipment, industrial equipment, retail / shopping equipment, medical equipment and / or artificial intelligence devices). Various 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. The equipment incorporating the various aspects and features described may include additional components and features for implementing and practicing the various aspects claimed and described. For example, the transmission and reception of wireless signals may include one or more components (e.g., hardware components, including antennas, radio frequency (RF) chains, power amplifiers, modulators, buffers, processors, interleavers, adders and / or summers) for analog and digital purposes. The various aspects described herein are intended to be practiced in various devices, components, systems, distributed arrangements and / or end-user devices of various sizes, shapes and configurations. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to fully understand the above-mentioned features of the present disclosure, a more specific description of the invention briefly summarized above can be obtained by referring to various aspects (some of which are illustrated in the accompanying drawings). However, it should be noted that the accompanying drawings only illustrate certain typical aspects of the present disclosure and are therefore not to be considered as limiting the scope thereof, as the specification may admit of other equally effective aspects. The same reference numerals in different drawings may identify the same or similar elements.

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

[0020] Figure 2 is a diagram illustrating an example of communication between a network node and a user equipment (UE) in a wireless network according to the present disclosure.

[0021] Figure 3 is a diagram illustrating an example of forming a virtual port by combining non-coherent antenna ports and / or partially coherent antenna ports according to the present disclosure.

[0022] Figure 4 is a diagram illustrating an example of a sounding reference signal (SRS) resource set according to the present disclosure.

[0023] Figure 5A and Figure 5B is a diagram illustrating an example of a UE hardware architecture that uses a virtual port to support maximum transmit power according to the present disclosure.

[0024] Figure 6 is a diagram illustrating an example of signaling and configuration using a maximum transmit power of a virtual port according to the present disclosure.

[0025] Figure 7 is a diagram illustrating an example associated with a full-power eight-port uplink transmission mode according to the present disclosure.

[0026] Figure 8 is a diagram illustrating an example process performed, for example, by a UE according to the present disclosure.

[0027] Fig. 9 is a diagram illustrating an example process, for example, performed by a network node, according to the present disclosure.

[0028] Fig.10 is a diagram of an example apparatus for wireless communications according to the present disclosure.

[0029] Fig.11 is a diagram of an example apparatus for wireless communications according to the present disclosure. DETAILED DESCRIPTION

[0030] The various aspects of the present disclosure are described more fully below with reference to the accompanying drawings. However, the present disclosure can be embodied in many different forms, and should not be construed as being limited to any specific structure or function presented throughout the present disclosure. On the contrary, these aspects are provided so that the present disclosure will be thorough and complete, and the scope of the present disclosure will be fully conveyed to those skilled in the art. It should be understood by those skilled in the art that the scope of the present disclosure is intended to cover any aspect of the present disclosure disclosed herein, whether it is implemented independently or in combination with any other aspect of the present disclosure. For example, any number of aspects set forth herein may be used to implement a device or practice method. In addition, the scope of the present disclosure is intended to cover such devices or methods implemented using other structures, functions, or structures and functions in addition to or different from the various aspects of the disclosure set forth herein. It should be understood that any aspect of the disclosure disclosed herein may be embodied by one or more elements of the claims.

[0031] Aspects and examples generally include methods, apparatus, network nodes, systems, computer program products, non-transitory computer-readable media, user equipment, base stations, wireless communication devices, and / or processing systems as described or fully described herein with reference to the figures and description and as illustrated in the figures and description.

[0032] The present disclosure may be readily used as a basis for modifying or designing other structures for carrying out the same purpose of the present disclosure. Such equivalent constructions do not depart from the scope of the appended claims. The characteristics of the concepts disclosed herein (both their organization and method of operation) and the associated advantages are better understood from the following description when considered in conjunction with the accompanying drawings. Each of the figures in the accompanying drawings is provided for the purpose of illustration and description and not as a definition of limitations to the claims.

[0033] Although various aspects are described in the present disclosure by illustrating some examples, such aspects can be implemented in many different arrangements and scenarios. The technology 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 implementations or other devices based on non-module components (e.g., end-user devices, vehicles, communication equipment, computing equipment, industrial equipment, retail / shopping equipment, medical equipment and / or artificial intelligence devices). Various 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. The equipment incorporating the various aspects and features described may include additional components and features for implementing and practicing the various aspects claimed and described. For example, the transmission and reception of wireless signals may include one or more components (e.g., hardware components, including antennas, radio frequency (RF) chains, power amplifiers, modulators, buffers, processors, interleavers, adders and / or summers) for analog and digital purposes. The various aspects described herein can be practiced in various devices, components, systems, distributed arrangements and / or end-user devices of different sizes, shapes and compositions.

[0034] Several aspects of telecommunication systems will now be presented with reference to various devices and techniques. These devices and techniques will be described in the following detailed description and illustrated in the accompanying drawings by various blocks, modules, components, circuits, steps, processes, algorithms, etc. (collectively referred to as "elements"). These elements can be implemented using hardware, software, or a 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.

[0035] Although various aspects may be described herein using terms generally associated with 5G or new radio (NR) radio access technologies (RATs), various aspects of the present disclosure may be applicable to other RATs, such as 3G RATs, 4G RATs, and / or post-5G RATs (e.g., 6G).

[0036] Figure 11 is a diagram illustrating an example of a wireless network 100 according to the present disclosure. The wireless network 100 may be a 5G (e.g., NR) network and / or a 4G (e.g., Long Term Evolution (LTE)) network, or may include elements of a 5G (e.g., NR) network and / or elements of a 4G (e.g., Long Term Evolution (LTE)) network, as well as other examples. The wireless network 100 may include one or more network nodes 110 (shown as network node 110a, network node 110b, network node 110c, and network node 110d), user equipment (UE) 120 or multiple UEs 120 (shown as UE 120a, UE 120b, UE 120c, UE 120d, and UE 120e), and / or other entities. The network node 110 is a network node that communicates with the UE 120. As shown in the figure, the network node 110 may include one or more network nodes. For example, the network node 110 may be a converged network node, which means that the converged network node is configured to utilize a radio protocol stack that is physically or logically integrated within a single radio access network (RAN) node (e.g., within a single device or unit). As another example, the network node 110 may be a decomposed network node (sometimes referred to as a decomposed base station), which means that the network node 110 is configured to utilize a protocol stack that is physically or logically distributed between two or more nodes (such as one or more central units (CUs), one or more distributed units (DUs), or one or more radio units (RUs)).

[0037] In some examples, the network node 110 is or includes a network node that communicates with the UE 120 via a radio access link, such as an RU. In some examples, the network node 110 is or includes a network node that communicates with other network nodes 110 via a fronthaul link or a midhaul link, such as a DU. In some examples, the network node 110 is or includes a network node that communicates with other network nodes 110 via a midhaul link or communicates with a core network via a backhaul link, such as a CU. In some examples, the network node 110 (such as an aggregated network node 110 or a 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. The network node 110 may include, for example, an NR base station, an LTE base station, a Node B, an eNB (e.g., in 4G), a gNB (e.g., in 5G), an access point, a transmit receive point (TRP), a DU, a RU, a CU, a mobility element of a network, a core network node, a network element, a network equipment, a RAN node, or a combination thereof. In some examples, network nodes 110 may be interconnected to each other or to one or more other network nodes 110 in wireless network 100 via various types of fronthaul, midhaul, and / or backhaul interfaces (such as direct physical connections, air interfaces, or virtual networks) using any suitable transport network.

[0038] In some examples, the network node 110 may provide communication coverage for a particular geographic area. In the Third Generation Partnership Project (3GPP), the term "cell" may refer to the coverage area of ​​the network node 110 and / or the network node subsystem serving the coverage area, depending on the context in which the term is used. The network node 110 may provide communication coverage for a macro cell, a pico cell, a femto cell, and / or another type of cell. A macro cell may cover a relatively large geographic area (e.g., a radius of several kilometers) and may allow unrestricted access by a UE 120 with a service subscription. A pico cell may cover a relatively small geographic area and may allow unrestricted access by a UE 120 with a service subscription. A femto cell may cover a relatively small geographic area (e.g., a home) and may allow restricted access by a UE 120 associated with the femto cell (e.g., a UE 120 in a closed subscriber group (CSG)). A network node 110 for a macro cell may be referred to as a macro network node. A network node 110 for a pico cell may be referred to as a pico network node. The network node 110 for a femto cell may be referred to as a femto network node or a home network node. Figure 1 In the example shown in , network node 110a may be a macro network node for macro cell 102a, network node 110b may be a pico network node for pico cell 102b, and network node 110c may be a femto network node for femto cell 102c. A network node may support one or more (e.g., three) cells. In some examples, a cell may not necessarily be stationary, and the geographic area of ​​a cell may move depending on the location of a mobile network node 110 (e.g., a mobile network node).

[0039] In some aspects, the term "base station" or "network node" may 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, a "base station" or "network node" may refer to a CU, a DU, a 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" may refer to a device configured to perform one or more functions (such as those described herein in conjunction with the network node 110). In some aspects, the term "base station" or "network node" may refer to a plurality of devices configured to perform one or more functions. For example, in some distributed systems, each of a number of different devices (which may be located in the same geographic location or in different geographic locations) may be configured to perform at least a portion of a function, or to repeat the execution of at least a portion of the function, and the term "base station" or "network node" may refer to any one or more of these different devices. In some aspects, the term "base station" or "network node" may 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 may be instantiated on a single device. In some aspects, the term "base station" or "network node" may refer to one of the base station functions but not the other. In this way, a single device may include more than one base station.

[0040] The wireless network 100 may include one or more relay stations. A relay station is a network node that can receive transmissions of data from an upstream node (e.g., a network node 110 or a UE 120) and transmit transmissions of data to a downstream node (e.g., a UE 120 or a network node 110). A relay station may be a UE 120 that is capable of relaying transmissions for other UEs 120. Figure 1 In the example shown in , a network node 110d (e.g., a relay network node) may communicate with a network node 110a (e.g., a macro network node) and a UE 120d to facilitate communication between the network node 110a and the UE 120d. A network node 110 that relays communications may be referred to as a relay station, a relay base station, a relay network node, a relay node, a relay, etc.

[0041] The wireless network 100 may be a heterogeneous network that includes different types of network nodes 110, such as macro network nodes, pico network nodes, femto network nodes, relay network nodes, etc. These different types of network nodes 110 may have different transmit power levels, different coverage areas, and / or different impacts on interference in the wireless network 100. For example, a macro network node may have a high transmit power level (e.g., 5 watts to 40 watts), while a pico network node, a femto network node, and a relay network node may have a lower transmit power level (e.g., 0.1 watt to 2 watts).

[0042] The network controller 130 may be coupled to or in communication with a set of network nodes 110 and may provide coordination and control for the network nodes 110. The network controller 130 may communicate with the network nodes 110 via a backhaul communication link or a midhaul communication link. The network nodes 110 may also communicate directly with each other or indirectly via a wireless backhaul communication link or a wired backhaul communication link. In some aspects, the network controller 130 may be or may include a CU or a core network device.

[0043] UE 120 can be distributed throughout the wireless network 100, and each UE 120 can be stationary or mobile. UE 120 can include, for example, an access terminal, a terminal, a mobile station and / or a subscriber unit. UE 120 can be a cellular phone (e.g., a smart phone), 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 computer, a camera, a gaming device, a netbook, a smartbook, an ultrabook, a medical device, a biometric device, a wearable device (e.g., a smart watch, smart clothing, smart glasses, a smart wristband, smart jewelry (e.g., a smart ring or a smart bracelet)), an entertainment device (e.g., a music device, a video device and / or a satellite radio), a vehicle component or sensor, a smart meter / sensor, an industrial manufacturing equipment, a global positioning system device, a UE function of a network node and / or any other suitable device configured to communicate via a wireless or wired medium.

[0044] Some UEs 120 may be considered as machine type communication (MTC) or evolved or enhanced machine type communication (eMTC) UEs. MTC UEs and / or eMTC UEs may include, for example, robots, drones, remote devices, sensors, meters, monitors, and / or location tags that may communicate with a network node, another device (e.g., a remote device), or some other entity. Some UEs 120 may be considered as Internet of Things (IoT) devices and / or may be implemented as NB-IoT (narrowband IoT) devices. Some UEs 120 may be considered as customer premises equipment. UE 120 may be included inside a housing that houses components of UE 120, such as a processor component and / or a memory component. In some examples, the processor component and the memory component may be coupled together. For example, a processor component (e.g., one or more processors) and a memory component (e.g., a memory) may be operably coupled, communicatively coupled, electronically coupled, and / or electrically coupled.

[0045] In general, any number of wireless networks 100 may be deployed in a given geographic area. Each wireless network 100 may support a specific RAT and may operate on one or more frequencies. RAT may be referred to as a radio technology, air interface, etc. Frequency may be referred to as a carrier, frequency channel, etc. Each frequency may support a single RAT in a given geographic area to avoid interference between wireless networks of different RATs. In some cases, NR or 5G RAT networks may be deployed.

[0046] In some examples, two or more UEs 120 (e.g., shown as UE 120a and UE 120e) may communicate directly (e.g., without using network node 110 as an intermediary to communicate with each other) using one or more side link channels. For example, UE 120 may communicate using peer-to-peer (P2P) communication, device-to-device (D2D) communication, vehicle-to-everything (V2X) protocols (e.g., which may include vehicle-to-vehicle (V2V) protocols, vehicle-to-infrastructure (V2I) protocols, 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 as being performed by network node 110.

[0047] The devices of the wireless network 100 may communicate using an electromagnetic spectrum that may be subdivided into various categories, bands, channels, etc., based on frequency or wavelength. For example, the devices of the wireless network 100 may communicate using one or more operating bands. In 5G NR, two initial operating bands have been identified as frequency range designations FR1 (410 MHz-7.125 GHz) and FR2 (24.25 GHz-52.6 GHz). It should be understood that, although a portion of FR1 is greater than 6 GHz, FR1 is often (interchangeably) referred to as the "below 6 GHz" band in various documents and articles. A similar naming problem sometimes occurs with respect to FR2, which is often (interchangeably) referred to as the "millimeter wave" band in documents and articles, although different from the extremely high frequency (EHF) band (30 GHz-300 GHz) identified as the "millimeter wave" band by the International Telecommunication Union (ITU).

[0048] Frequencies between FR1 and FR2 are generally referred to as mid-band frequencies. Recent 5G NR research has identified the operating bands for these mid-band frequencies as frequency range designation FR3 (7.125GHz-24.25GHz). The bands falling within FR3 can inherit FR1 characteristics and / or FR2 characteristics, so the features of FR1 and / or FR2 can be effectively extended to mid-band frequencies. In addition, higher frequency bands are currently being explored to extend 5G NR operations to more than 52.6GHz. For example, three higher operating bands have been identified as frequency range designations 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.

[0049] In view of the above examples, unless otherwise specifically stated, it should be understood that if the term "below 6 GHz" or the like is used herein, the term may broadly refer to frequencies that may be lower than 6 GHz, may be within FR1, or may include mid-band frequencies. In addition, unless otherwise specifically stated, it should be understood that if the term "millimeter wave" or the like is used herein, the term may broadly refer to frequencies that may include mid-band frequencies, may be within FR2, FR4, FR4-a or FR4-1 and / or FR5, or may be within the EHF band. It is contemplated that the frequencies included in these operating bands (e.g., FR1, FR2, FR3, FR4, FR4-a, FR4-1, and / or FR5) may be modified, and the techniques described herein are applicable to those modified frequency ranges.

[0050] In some aspects, UE 120 may include a communication manager 140. As described in greater detail elsewhere herein, the communication manager 140 may configure a total transmit power for a physical uplink shared channel (PUSCH) communication based on a precoder and a total power scaling factor, the total power scaling factor comprising a sum of multiple power scaling factors associated with a set of transmit ports of the UE, each transmit port in the set of transmit ports corresponding to a PA in a set of power amplifiers (PAs); and transmit the PUSCH communication to a network node based on the total transmit power. Additionally or alternatively, the communication manager 140 may perform one or more other operations described herein.

[0051] In some aspects, the network node 110 may include a communication manager 150. As described in more detail elsewhere herein, the communication manager 150 may receive from a UE a PUSCH communication having a total transmit power based on a predecoder and a total power scaling factor, the total power scaling factor comprising a sum of multiple power scaling factors associated with a set of transmit ports of the UE, each transmit port in the set of transmit ports corresponding to a PA in a set of PAs; and perform a wireless communication task based on receiving the PUSCH communication. Additionally or alternatively, the communication manager 150 may perform one or more other operations described herein.

[0052] As indicated above, Figure 1 are provided as examples. Other examples can be found in the Figure 1 The examples described are different.

[0053] Figure 2 2 is a diagram illustrating an example 200 of a network node 110 communicating with a UE 120 in a wireless network 100 according to the present disclosure. The network node 110 may be equipped with a set of antennas 234a to 234t, such as T antennas (T≥1). The UE 120 may be equipped with a set of antennas 252a to 252r, such as R antennas (R≥1). The network node 110 of example 200 includes one or more radio frequency components, such as an antenna 234 and a modem 254. In some examples, the network node 110 may include an interface, a communication component, or another component that facilitates communication with the UE 120 or another network node. Some network nodes 110 may not include a radio frequency component that facilitates direct communication with the UE 120, such as one or more CUs or one or more DUs.

[0054] At the network node 110, the transmit processor 220 may receive data intended for the UE 120 (or a set of UEs 120) from the data source 212. The transmit processor 220 may select one or more modulation and coding schemes (MCS) for the UE 120 based at least in part on one or more channel quality indicators (CQI) received from the UE 120. The network node 110 may process (e.g., encode and modulate) the data for the UE 120 based at least in part on the MCS selected for the UE 120, and may provide data symbols for the UE 120. The transmit processor 220 may process system information (e.g., for semi-static resource allocation information (SRPI)) and control information (e.g., CQI requests, grants, and / or upper layer signaling), and provide overhead symbols and control symbols. The transmit processor 220 may 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 signals (PSS) or secondary synchronization signals (SSS)). The transmit (TX) multiple-input multiple-output (MIMO) processor 230 may perform spatial processing (e.g., pre-coding) on ​​data symbols, control symbols, overhead symbols, and / or reference symbols, where applicable, and may provide a set of output symbol streams (e.g., T output symbol streams) to a corresponding set of modems 232 (e.g., T modems) (shown as modems 232a to 232t). For example, each output symbol stream may be provided to a modulator component (shown as MOD) of the modem 232. Each modem 232 may process a corresponding output symbol stream (e.g., for OFDM) using a corresponding modulator component to obtain an output sample stream. Each modem 232 may also process (e.g., convert to analog, amplify, filter, and / or up-convert) the output sample stream using a corresponding modulator component to obtain a downlink signal. The modems 232a to 232t may 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).

[0055] At the UE 120, a set of antennas 252 (shown as antennas 252a to 252r) may receive downlink signals from the network node 110 and / or other network nodes 110 and may provide a set of received signals (e.g., R received signals) to a set of modems 254 (e.g., R modems) (shown as modems 254a to 254r). For example, each received signal may be provided to a demodulator component (shown as DEMOD) of the modem 254. Each modem 254 may use a corresponding demodulator component to condition (e.g., filter, amplify, downconvert, and / or digitize) the received signal to obtain input samples. Each modem 254 may use a demodulator component to further process the input samples (e.g., for OFDM) to obtain received symbols. A MIMO detector 256 may obtain received symbols from the modem 254, may perform MIMO detection on the received symbols where applicable, and may provide detected symbols. The receive processor 258 may process (e.g., demodulate and decode) the detected symbols, may provide decoded data for the UE 120 to the data sink 260, and may provide decoded control information and system information to the controller / processor 280. The term "controller / processor" may refer to one or more controllers, one or more processors, or a combination thereof. The channel processor may determine a reference signal received power (RSRP) parameter, a received signal strength indicator (RSSI) parameter, a reference signal received quality (RSRQ) parameter, and / or a CQI parameter, among other things. In some examples, one or more components of the UE 120 may be included in the housing 284.

[0056] The network controller 130 may include a communication unit 294, a controller / processor 290, and a memory 292. The network controller 130 may include, for example, one or more devices in a core network. The network controller 130 may communicate with the network node 110 via the communication unit 294.

[0057] One or more antennas (e.g., antennas 234a to 234t and / or antennas 252a to 252r) may include or be included within one or more antenna panels, one or more antenna groups, one or more sets of antenna elements, and / or one or more antenna arrays, etc. Antenna panels, antenna groups, sets of antenna elements, and / or antenna arrays may include one or more antenna elements (in a single housing or multiple housings), sets of coplanar antenna elements, sets of non-coplanar antenna elements, and / or antennas coupled to one or more transmit and / or receive components (such as antennas). Figure 2 One or more antenna elements of one or more components).

[0058] Each of the antenna elements may include one or more sub-elements for radiating or receiving radio frequency signals. For example, a single antenna element may include a first sub-element that is cross-polarized with a second sub-element, which can be used to independently transmit cross-polarized signals. The antenna elements may include patch antennas, dipole antennas, or other types of antennas arranged in a linear pattern, a two-dimensional pattern, or another pattern. The spacing between antenna elements may allow signals having a desired wavelength transmitted individually by the antenna elements to interact or interfere (e.g., to form a desired beam). For example, given a desired wavelength or frequency range, the spacing may provide a quarter wavelength, half wavelength, or other fraction of a wavelength of the spacing between adjacent antenna elements to allow interaction or interference of signals transmitted by individual antenna elements within the desired range.

[0059] Antenna elements and / or sub-elements may be used to generate beams. A "beam" may refer to a directional transmission, such as a wireless signal transmitted in the direction of a receiving device. A beam may include a directional signal, a direction associated with the signal, a set of directional resources associated with the signal (e.g., angle of arrival, horizontal direction, vertical direction), and / or a set of parameters indicating one or more aspects of a directional signal, a direction associated with the signal, and / or a set of directional resources associated with the signal.

[0060] As indicated above, antenna elements and / or sub-elements can be used to generate beams. For example, antenna elements can be individually selected or deselected for transmission of a signal (or multiple signals) by controlling the amplitude of one or more corresponding amplifiers. Beamforming includes generating beams using multiple signals on different antenna elements, wherein one or more or all of the multiple signals are shifted in phase relative to each other. The formed beams may carry physical or higher layer reference signals or information. When each of the multiple signals is radiated from the corresponding antenna element, the radiated signals interact, interfere (constructively and destructively) and amplify with each other to form the resulting beam. The shape (such as amplitude, width and / or the presence of side lobes) and direction (such as the angle of the beam relative to the surface of the antenna array) can be dynamically controlled by modifying the phase shift or phase offset of the multiple signals relative to each other.

[0061] Beamforming may be used for communication between a UE and a network node, such as for millimeter wave communication, etc. In this case, the network node may provide the UE with a configuration of a transmit configuration indicator (TCI) state, which indicates beams that may be used by the UE, such as for receiving a physical downlink shared channel (PDSCH). The network node may indicate an activated TCI state to the UE, which the UE may use to select a beam for receiving the PDSCH.

[0062] The beam indication may be or include a TCI state information element, a beam identifier (ID), spatial relationship information, a TCI state ID, a closed loop index, a panel ID, a TRP ID, and / or a sounding reference signal (SRS) set ID, etc. The TCI state information element (referred to herein as TCI state) may indicate information associated with a beam such as a downlink beam. For example, the TCI state information element may indicate a TCI state identifier (e.g., tci-StateID), a quasi-co-location (QCL) type (e.g., qcl-Type1, qcl-Type2, qcl-TypeA, qcl-TypeB, qcl-TypeC, qcl-TypeD, etc.), a cell identifier (e.g., ServCellIndex), a bandwidth part identifier (bwp-Id), and / or a reference signal identifier (such as a CSI-RS (e.g., NZP-CSI-RS-ResourceId and / or SSB-Index, etc.)), etc. The spatial relationship information may similarly indicate information associated with an uplink beam.

[0063] The beam indication may be a joint or separate downlink (DL) / uplink (UL) beam indication in a unified TCI framework. In some cases, the network may use at least UE-specific (unicast) downlink control information (DCI) to indicate a joint or separate DL / UL beam indication from an active TCI state, thereby supporting beam indication based on layer 1 (L1). In some cases, existing DCI formats 1_1 and / or 1_2 may be reused for beam indication. The network may include a support mechanism for the UE to confirm successful decoding of the beam indication. For example, an acknowledgment / negative acknowledgment (ACK / NACK) of a PDSCH scheduled by a DCI carrying a beam indication may also be used as an ACK for the DCI.

[0064] Beam indication may be provided for carrier aggregation (CA) scenarios. In a unified TCI framework, the network may support common TCI state ID updates and activations to provide common QCL information and / or one or more common UL transmit spatial filters across a set of configured component carriers (CCs). This type of beam indication may be applicable to intra-band CA as well as joint DL / UL beam indication and separate DL / UL beam indication. A common TCI state ID may mean that a reference signal (RS) determined according to a TCI state indicated by a common TCI state ID is used to provide a QCL type D indication and determine a UL transmit spatial filter across a set of configured CCs.

[0065] On the uplink, at the UE 120, the transmit processor 264 may receive and process data from the data source 262 and control information from the controller / processor 280 (e.g., for reports including RSRP, RSSI, RSRQ, and / or CQI). The transmit processor 264 may generate reference symbols for one or more reference signals. The symbols from the transmit processor 264 may be pre-decoded by the TX MIMO processor 266, where applicable, further processed by the modem 254 (e.g., for DFT-s-OFDM or CP-OFDM), and sent to the network node 110. In some examples, the modem 254 of the UE 120 may include a modulator and a demodulator. In some examples, the UE 120 includes a transceiver. The transceiver may include any combination of an antenna 252, a modem 254, a MIMO detector 256, a receive processor 258, a transmit processor 264, and / or a TX MIMO processor 266. The transceiver may be used by a processor (eg, controller / processor 280) and memory 282 to perform the functions described herein (eg, reference Figures 7 to 11 ) or any aspect of any of the methods described herein.

[0066] At the network node 110, uplink signals from the UE 120 and / or other UEs may be received by the antenna 234, processed by the modem 232 (e.g., a demodulator component (shown as DEMOD) of the modem 232), detected by the MIMO detector 236 (where applicable), and further processed by the receive processor 238 to obtain decoded data and control information transmitted by the UE 120. The receive processor 238 may provide the decoded data to the data sink 239 and the decoded control information to the controller / processor 240. The network node 110 may include a communication unit 244 and may communicate with the network controller 130 via the communication unit 244. The network node 110 may include a scheduler 246 to schedule one or more UEs 120 for downlink communication and / or uplink communication. In some examples, the modem 232 of the network node 110 may include a modulator and a demodulator. In some examples, the network node 110 includes a 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 transceiver may be used by a processor (e.g., controller / processor 240) and memory 242 to perform the operations described herein (e.g., reference 2 Figures 7 to 11 ) or any aspect of any of the methods described herein.

[0067] In some aspects, the controller / processor 280 may be a component of a processing system. A processing system may generally be a system or series of machines or components that receives inputs and processes the inputs to produce a set of outputs that may be communicated to other systems or components, such as the UE 120. For example, the processing system of the UE 120 may be a system that includes various other components or subcomponents of the UE 120.

[0068] The processing system of UE 120 may interface with one or more other components of UE 120, may process information (such as input or signal) received from one or more other components, or may output information to one or more other components. For example, a chip or modem of UE 120 may include: a processing system, a first interface for receiving or obtaining information, and a second interface for outputting, sending, or providing information. In some examples, the first interface may be an interface between a processing system and a receiver of the chip or modem, so that UE 120 may receive information or signal input, and may pass information to the processing system. In some examples, the second interface may be an interface between a processing system and a transmitter of the chip or modem, so that UE 120 may send information output from the chip or modem. A person of ordinary skill in the art will readily recognize that the second interface may also obtain or receive information or signal input, and the first interface may also output, send, or provide information.

[0069] In some aspects, controller / processor 240 may be a component of a processing system. A processing system may generally be a system or series of machines or components that receives inputs and processes the inputs to produce a set of outputs that may be passed to other systems or components, such as network node 110. For example, a processing system of network node 110 may be a system that includes various other components or subcomponents of network node 110.

[0070] The processing system of the network node 110 may interface with one or more other components of the network node 110, may process information (such as input or signal) received from one or more other components, or may output information to one or more other components. For example, a chip or modem of the network node 110 may include: a processing system, a first interface for receiving or obtaining information, and a second interface for outputting, sending, or providing information. In some examples, the first interface may be an interface between a processing system and a receiver of the chip or modem, so that the network node 110 may receive information or signal input, and may pass information to the processing system. In some examples, the second interface may be an interface between a processing system and a transmitter of the chip or modem, so that the network node 110 may send information output from the chip or modem. A person of ordinary skill in the art will readily recognize that the second interface may also obtain or receive information or signal input, and the first interface may also output, send, or provide information.

[0071] The controller / processor 240 of the network node 110, the controller / processor 280 of the UE 120, and / or Figure 2 Any other components of the network node 110 may perform one or more techniques associated with the full power eight-port uplink transmission mode, as described in more detail elsewhere herein. For example, the controller / processor 240 of the network node 110, the controller / processor 280 of the UE 120, and / or Figure 2 Any other component of the Figure 8 The process of 800 Fig. 9 900 and / or operations of other processes as described herein. Memory 242 and memory 282 may store data and program codes 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, the one or more instructions, when executed (e.g., directly or after compilation, conversion and / or interpretation) by one or more processors of network node 110 and / or UE 120, may cause the one or more processors, UE 120 and / or network node 110 to perform or direct, for example, Figure 8 The process of 800 Fig. 9 The process 900 and / or operations of other processes as described herein. In some examples, executing instructions may include running instructions, converting instructions, compiling instructions, and / or interpreting instructions, etc.

[0072] In some aspects, a UE (e.g., UE 120) includes: a component for configuring a total transmit power for a PUSCH communication based on a predecoder and a total power scaling factor, the total power scaling factor including a sum of multiple power scaling factors associated with a set of transmit ports of the UE, each transmit port in the set of transmit ports corresponding to a PA in a set of PAs; and / or a component for transmitting the PUSCH communication to a network node based on the total transmit power. The components for the UE to perform the operations described herein may include, for example, one or more of the following: 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.

[0073] In some aspects, a network node (e.g., network node 110) includes: a component for receiving a PUSCH communication from a UE having a total transmit power based on a predecoder and a total power scaling factor, the total power scaling factor including a sum of multiple power scaling factors associated with a transmit port set of the UE, each transmit port in the transmit port set corresponding to a PA in a PA set; and / or a component for performing a wireless communication task based on receiving the PUSCH communication. The components for the network node to perform the operations described herein may include, for example, one or more of the following: communication manager 150, transmit processor 220, TX MIMO processor 230, modem 232, antenna 234, MIMO detector 236, receive processor 238, controller / processor 240, memory 242, or scheduler 246.

[0074] In some aspects, a single processor may perform all of the functions described as being performed by the one or more processors. In some aspects, the one or more processors may perform a set of functions together. For example, a first set of (one or more) of the one or more processors may perform a first function described as being performed by the one or more processors, and a second set of (one or more) of the one or more processors may perform a second function described as being performed by the one or more processors. The first set of processors and the second set of processors may be the same set of processors or may be different sets of processors. References to "one or more processors" should be understood to refer to the combination Figure 2 Any one or more of the processors described. References to "one or more memories" should be understood to refer to any one or more memories of the corresponding device, such as in conjunction with Figure 2 For example, functions described as being performed by one or more memories may be performed by the same subset of the one or more memories or by a different subset of the one or more memories.

[0075] Although Figure 2 The blocks in the 200 and 210 are illustrated as distinct components, but the functionality described above with respect to these blocks may be implemented in a single hardware, software, or combined component or in various combinations of components. For example, the functionality described with respect to the transmit processor 264, the receive processor 258, and / or the TX MIMO processor 266 may be performed by or under the control of the controller / processor 280.

[0076] As indicated above, Figure 2 are provided as examples. Other examples can be found in the Figure 2 The examples described are different.

[0077] The deployment of a communication system (such as a 5G NR system) can be arranged with various components or components in a variety of ways. In a 5G NR system or network, a network node, a network entity, a mobility element of a network, a RAN node, a core network node, a network element, a base station or network equipment can be implemented in an aggregated or decomposed architecture. For example, a base station (such as a node B (NB), an evolved NB (eNB), an NR BS, a 5G NB, an access point (AP), a TRP or a cell, etc.) or one or more units (or one or more components) that perform base station functionality can be implemented as an aggregated base station (also referred to as an independent base station or a monolithic base station) or a decomposed base station. "Network entity" or "network node" may 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 a combination thereof).

[0078] An aggregated base station (e.g., an aggregated network node) may 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). A decomposed base station (e.g., a decomposed network node) may be configured to utilize a protocol stack that is physically or logically distributed between two or more units (such as one or more CUs, one or more DUs, or one or more RUs). In some examples, a CU may be implemented within a network node, and one or more DUs may be co-located with the CU, or alternatively, may be geographically or virtually distributed across one or more other network nodes. A DU may be implemented to communicate with one or more RUs. Each of a CU, a DU, and a RU may also be implemented as a virtual unit, such as a virtual central unit (VCU), a virtual distributed unit (VDU), or a virtual radio unit (VRU), and the like.

[0079] Base station type operations or network designs may take into account the aggregated nature of base station functionality. For example, a decomposed base station may be utilized in an IAB network, an open radio access network (O-RAN (such as a network configuration initiated by the O-RAN Alliance)), or a virtualized radio access network (vRAN, also known as a cloud radio access network (C-RAN)) to facilitate the scaling of a communication system by separating base station functionality into one or more units that can be deployed separately. A decomposed base station may include functionality implemented across two or more units at various physical locations, as well as functionality implemented virtually for at least one unit, which may enable flexibility in network design. Individual units of a decomposed base station may be configured for wired or wireless communication with at least one other unit of the decomposed base station.

[0080] Figure 3 is a diagram illustrating an example 300 of forming a virtual port by combining non-coherent antenna ports and / or partially coherent antenna ports according to the present disclosure.

[0081] Depending on the coherence of the antenna ports of the UE 120, the multi-antenna UE 120 and / or the antenna port set of the UE 120 can be classified into one of three groups. If the relative phase between the antenna port set (e.g., between two antenna ports) remains the same between the time of the sounding reference signal (SRS) transmission from these antenna ports and the time of the subsequent physical uplink shared channel (PUSCH) transmission from these antenna ports, then the antenna port set (e.g., two antenna ports) is coherent. In this case, since the relative phase of the antenna ports will be the same for the SRS transmission and the PUSCH transmission, the SRS can be used (e.g., by the UE 120 or the network node 110) to determine the uplink predecoder for precoding the PUSCH transmission. In this case, the precoding can span the set of coherent antenna ports (sometimes referred to as coherent ports in this document). If the antenna port set is not coherent (i.e., non-coherent), such uplink predecoder determination becomes difficult because the relative phase of the antenna ports will change from the SRS transmission to the PUSCH transmission.

[0082] For example, if the relative phase between a set of antenna ports is different for SRS transmission and PUSCH transmission, the set of antenna ports is considered to be incoherent. In this case, precoding does not span the set of incoherent antenna ports (sometimes referred to as incoherent ports). In addition, if a first subset of the set of antenna ports is coherent with each other and a second subset of the set of antenna ports is coherent with each other, but the first subset of antenna ports and the second subset of antenna ports are incoherent with each other, the set of antenna ports is considered to be partially coherent. In this case, a common precoding may be used within a subset of coherent ports, but not across a subset of incoherent ports. However, certain techniques may be applied to synthesize virtual antenna ports (sometimes referred to herein as virtual ports) from antenna ports that lack coherence (e.g., so that a common precoding may be used on a virtual port and the common precoding is applied to an incoherent antenna port).

[0083] For example, as shown by reference numeral 305, precoding (e.g., uplink precoding) and cyclic delay diversity may be used to combine a set of non-coherent antenna ports (e.g., shown as two non-coherent antenna ports) into a single virtual port. The precoder may be determined by the UE 120 and / or signaled by the network node 110. "Cyclic delay diversity" (CDD) may refer to a technique that introduces a delay on one of the non-coherent ports without introducing a delay (e.g., a cyclic delay) on another non-coherent port. The delay may be measured in samples (e.g., 5 samples and / or 10 samples, etc.), fractions of samples, etc. For example, a first non-coherent port may send a first sample stream, and a second non-coherent port may send a second sample stream (e.g., which may be the same stream) with a slight cyclic delay (e.g., a delay of 5 samples and / or 10 samples, etc.). For example, for a cyclic delay of 5 samples, when 16 samples are sent per symbol, a first non-coherent port may send 16 samples with the first sample being sent first (e.g., [s1, s2, s3, s4, ..., s16]), and a second non-coherent port may send 16 samples with the first sample being sent sixth (e.g., with a delay of five samples) (e.g., [s12, s13, s14, s15, s16, s1, s2, s3, ..., s11]).

[0084] Additionally or alternatively, as shown by reference numeral 310, precoding (e.g., uplink precoding) and cyclic delay diversity may be used in a similar manner as described above to combine a set of partially coherent antenna ports (sometimes referred to herein as partially coherent ports) into a single virtual port. As shown, a first subset of ports may be coherent to each other, and a second subset of ports may be coherent to each other, but the two subsets may be incoherent to each other. As further shown, precoding may be applied to each subset to generate a first virtual port and a second virtual port that are incoherent to each other. CDD may then be applied to the two virtual ports (e.g., by sending communications from the virtual ports using CDD) to form a single virtual port from the partially coherent ports (e.g., using precoding and CDD).

[0085] When UE 120 is configured with multiple SRS ports for multiple-input multiple-output (MIMO) mode, UE 120 may be required to use a power scaling factor to split the transmit power equally across all antenna ports used for PUSCH transmission. The power scaling factor may be equal to the number of antenna ports with non-zero PUSCH transmit power divided by the maximum number of SRS ports supported by UE 120 in one SRS resource. In this case, UE 120 may not be able to transmit at the maximum transmit power because UE 120 is required to split the transmit power equally across all antenna ports on which the UE is configured to transmit PUSCH communications. For example, as shown in reference numeral 315, when UE 120 uses precoding to transmit on a single port (shown as port 0) of two configured ports (port 0 and port 1), the transmit power of the transmission on the single port (port 0) is scaled by a factor of 1 / 2 (half).

[0086] In some cases, the network node 110 may need to instruct the UE 120 to transmit at the maximum power, such as when the UE 120 is near a cell edge or has poor link quality with the network node 110. However, different UEs 120 may have different capabilities regarding virtual port synthesis and which virtual ports of the UE 120 are capable of supporting the maximum transmit power. For example, depending on the hardware components of the UE 120, the number of transmit antennas of the UE 120, the number of transmit chains of the UE 120, the maximum transmit power supported by different power amplifiers and / or different combinations of power amplifiers of the UE 120, etc., the UE 120 may or may not be capable of synthesizing a virtual port that supports the maximum transmit power (e.g., of the power class of the UE 120) and / or may only be capable of supporting the maximum transmit power of a virtual port that is a combination of a specific set of actual antenna ports of the UE 120.

[0087] In order for the network node 110 to indicate to the UE 120 the precoder to be used for transmitting at maximum power (e.g., corresponding to the transmitted precoding matrix indicator (TPMI)), the network node 110 needs to know which precoder of the UE 120 is capable of supporting transmitting at maximum power. However, the network node 110 may not have information about such capabilities of the UE 120, which may result in an instruction to transmit at maximum power using a precoder that the UE 120 is not capable of using to transmit at maximum power. Some techniques and apparatus described herein allow the UE 120 to signal capabilities regarding, among other things, a total power scaling factor of the UE 120 and / or a precoder (e.g., TPMI) that supports the maximum transmit power of the UE 120. In this way, the network node 110 can configure and / or instruct the UE 120 to transmit at maximum transmit power using a power scaling factor and / or precoder that supports the maximum transmit power.

[0088] although Figure 3 Antenna port pairs are shown in sets and subsets, but in some aspects, different numbers of antenna ports may be included in a set or subset. For example, an antenna port set or subset of antenna ports may include three antenna ports and / or four antenna ports, etc.

[0089] As indicated above, Figure 3 are provided as examples. Other examples can be found in the Figure 3 The examples described are different.

[0090] Figure 4 is a diagram illustrating an example 400 of sounding reference signal (SRS) resource sets in accordance with various aspects of the present disclosure.

[0091] The network node 110 may configure the UE 120 with one or more SRS resource sets to allocate resources for SRS transmission by the UE 120. For example, the configuration for the SRS resource set may be indicated in a radio resource control (RRC) message (e.g., an RRC configuration message and / or an RRC reconfiguration message, etc.). As shown by reference numeral 405, the SRS resource set may include one or more resources (e.g., shown as SRS resources), which may include time resources and / or frequency resources (e.g., time slots, symbols, resource blocks, and / or periodicity of time resources, etc.).

[0092] As shown by reference numeral 410, the SRS resources may include one or more antenna ports on which the SRS is to be sent (e.g., in time-frequency resources). Thus, the configuration for the SRS resource set may indicate one or more time-frequency resources in which the SRS is to be sent, and may indicate one or more antenna ports on which the SRS is to be sent in those time-frequency resources. In some aspects, the configuration for the SRS resource set may indicate a use case for the SRS resource set (e.g., in an SRS-SetUse information element). For example, the SRS resource set may have use cases for antenna switching, codebook, non-codebook, and / or beam management, etc.

[0093] The antenna switching SRS resource set may be used to indicate downlink channel state information (CSI) with reciprocity between the uplink channel and the downlink channel. For example, when there is reciprocity between the uplink channel and the downlink channel, the network node 110 may use the antenna switching SRS (e.g., an SRS sent using resources in the antenna switching SRS resource set) to obtain downlink CSI (e.g., to determine a downlink precoder to be used for communication with the UE 120).

[0094] The codebook SRS resource set may be used to indicate uplink CSI when the network node 110 indicates an uplink precoder to the UE 120. For example, when the network node 110 is configured to indicate an uplink precoder to the UE 120 (e.g., using a precoder codebook), the network node 110 may use the codebook SRS (e.g., an SRS sent using resources in the codebook SRS resource set) to obtain uplink CSI (e.g., to determine an uplink precoder to be indicated to the UE 120 and to be used by the UE 120 to communicate with the network node 110). In some aspects, at least for the codebook SRS, a virtual port (e.g., a combination of two or more antenna ports) with a maximum transmit power may be supported.

[0095] When UE 120 selects an uplink precoder (e.g., other than an uplink precoder indicated by network node 110 to be used by UE 120), a non-codebook SRS resource set may be used to indicate uplink CSI. For example, when UE 120 is configured to select an uplink precoder, network node 110 may use a non-codebook SRS (e.g., an SRS sent using resources in a non-codebook SRS resource set) to obtain uplink CSI. In this case, the non-codebook SRS may be precoded using a precoder selected by UE 120 (e.g., the precoder may be indicated to network node 110).

[0096] The beam-managed SRS resource set may be used to indicate CSI for millimeter wave communications.

[0097] like Figure 4 As shown, in some aspects, different SRS resource sets (e.g., having different use cases) indicated to UE 120 may overlap (e.g., in time and / or in frequency, etc., such as in the same time slot). For example, as shown by reference numeral 415, a first SRS resource set (e.g., shown as SRS resource set 1) is shown as having an antenna switching use case. As shown, the example antenna switching SRS resource set includes a first SRS resource (shown as SRS resource A) and a second SRS resource (shown as SRS resource B). Therefore, antenna port 0 and antenna port 1 may be used to send antenna switching SRS in SRS resource A (e.g., a first time-frequency resource), and antenna port 2 and antenna port 3 may be used to send antenna switching SRS in SRS resource B (e.g., a second time-frequency resource).

[0098] As shown by reference numeral 420, the second SRS resource set (e.g., shown as SRS resource set 2) may be a codebook use case. As shown, the example codebook SRS resource set includes only the first SRS resource (shown as SRS resource A). Therefore, antenna port 0 and antenna port 1 may be used to send the codebook SRS in SRS resource A (e.g., the first time-frequency resource). In this case, UE 120 may not use antenna port 2 and antenna port 3 to send the codebook SRS in SRS resource B (e.g., the second time-frequency resource).

[0099] As above combined Figure 3 As described, when UE 120 is configured with multiple SRS ports for MIMO mode, UE 120 may be required to use a power scaling factor to split the transmit power equally across all antenna ports used for PUSCH transmission. In this case, UE 120 may not be able to use a virtual port (which is a combination of multiple non-coherent ports and / or multiple partially coherent ports) to transmit at maximum transmit power because UE 120 is required to split the transmit power equally across all antenna ports on which the UE transmits PUSCH communications with non-zero transmit power. Some techniques and apparatus described herein allow UE 120 to transmit at a total transmit power that includes the sum of multiple power scaling factors associated with multiple PAs (e.g., configured by SRS configurations).

[0100] As indicated above, Figure 4 are provided as examples. Other examples can be found in the Figure 4 The examples described are different.

[0101] Figure 5A and Figure 5B is a diagram illustrating an example 500 of a UE hardware architecture using virtual ports to support maximum transmit power in accordance with various aspects of the present disclosure.

[0102] like Figure 5A As shown, the ability of UE 120 to use a virtual port to support the maximum transmit power of the power class of UE 120 may depend on the hardware architecture of UE 120. Specifically, such ability of UE 120 may depend on the number of transmit antennas (or transmit chains) of UE 120, the number of power amplifiers of UE 120 and / or the transmit power that can be provided by each of these power amplifiers, etc. As an example, Figure 5A UE 120 is shown having a first power amplifier (PA1) supporting a maximum power of 20 decibel-milliwatt (dBm), a second power amplifier (PA2) supporting a maximum power of 20 dBm, a third power amplifier (PA3) supporting a maximum power of 17 dBm, and a fourth power amplifier (PA4) supporting a maximum power of 17 dBm.

[0103] In some aspects, the UE 120 described herein may have a hardware architecture in which a subset of the power amplifiers of the UE 120 (e.g., less than all of the power amplifiers) individually support a maximum transmit power of the UE 120 (e.g., without combining antenna ports). For example, if the UE 120 is power class 3 with a maximum transmit power of 23 dBm, less than all of the power amplifiers of the UE 120 individually support a transmit power of 23 dBm. In example 500, none of the power amplifiers of the UE 120 individually support a maximum transmit power of 23 dBm (e.g., without combining antenna ports). However, in other examples, one of the four power amplifiers may individually support a maximum transmit power of 23 dBm, two of the four power amplifiers may individually support a maximum transmit power of 23 dBm, or three of the four power amplifiers may individually support a maximum transmit power of 23 dBm. For a UE 120 having two power amplifiers (and two corresponding antennas), either none of the two power amplifiers can individually support a maximum transmit power of 23 dBm, or one of the two power amplifiers can individually support a maximum transmit power of 23 dBm.

[0104] Using this hardware architecture, for a power class 3 UE 120 having a maximum transmit power of 23 dBm, the maximum transmit power may be achieved by synthesizing a virtual port (shown as virtual port 1) using PA1 and PA2, synthesizing a virtual port (shown as virtual port 2) using PA2, PA3, and PA4, and / or synthesizing a virtual port (shown as virtual port 3) using all four power amplifiers, etc. However, this is only one example of a hardware architecture of the UE 120, and different UEs 120 may have different hardware architectures, such as a different number of transmit antennas (or transmit chains), a different number of power amplifiers, and / or different transmit powers that can be provided by different power amplifiers, etc. Therefore, some UEs 120 may not be able to synthesize a virtual port that supports the maximum transmit power of the power class of the UE 120, different UEs 120 may be able to synthesize a different number of virtual ports that support the maximum transmit power, and different UEs 120 may be able to use different precoders (e.g., different combinations of antennas and / or power amplifiers) to synthesize a virtual port that supports the maximum transmit power.

[0105] As above combined Figure 3 As indicated, in order for the network node 110 to indicate to the UE 120 the precoder to be used for transmitting at maximum power (e.g., TPMI), the network node 110 needs to know which precoder of the UE 120 is capable of supporting transmitting at maximum power. However, the network node 110 may not have information about such capabilities of the UE 120, which may result in an instruction to transmit at maximum power using a precoder that the UE 120 is not capable of using to transmit at maximum power. Some techniques and apparatuses described herein allow the UE 120 to signal capabilities regarding, among other things, a virtual port of the UE 120 that supports maximum transmit power and / or a precoder (e.g., TPMI) that supports maximum transmit power of the UE 120. In this way, the network node 110 may configure and / or instruct the UE 120 to transmit at maximum transmit power using a virtual port and / or precoder that supports maximum transmit power.

[0106] like Figure 5BAs shown, a 4Tx UE 120 may have four power amplifiers (and corresponding four transmit antennas and four transmit chains), but may behave like a 2Tx UE 120 (e.g., a UE 120 having two power amplifiers and corresponding two transmit antennas and two transmit chains). For example, as shown by reference numeral 505, the 4Tx UE 120 may synthesize a first virtual port (shown as virtual port A) using PA1 and PA2, and may synthesize a second virtual port (shown as virtual port B) using PA3 and PA4. In this case, the 4Tx UE 120 may transmit using two virtual ports, and may therefore behave like a 2Tx UE.

[0107] As another example, and as shown by reference numeral 510, a 4Tx UE 120 may deactivate or disable two power amplifiers, two transmit chains, and / or two transmit antennas (e.g., to save power). In this case, the 4Tx UE 120 may transmit using two activated power amplifiers, transmit chains, and / or transmit antennas, and may thus behave like a 2Tx UE. As shown by reference numeral 515, in some aspects, the 4Tx UE 120 may be able to synthesize a virtual port (shown as virtual port C) using two activated power amplifiers, transmit chains, and / or transmit antennas.

[0108] As indicated above, Figure 5A and Figure 5B are provided as examples. Other examples can be found in the Figure 5A and Figure 5B The examples described are different.

[0109] Figure 6 6 is a diagram illustrating an example 600 of signaling and configuration using maximum transmit power of a virtual port according to various aspects of the present disclosure. Figure 6 As shown, UE 120 and network node 110 may communicate with each other.

[0110] As shown by reference numeral 605, UE 120 may send an indication to network node 110 whether UE 120 is capable of using a virtual port to transmit uplink communications using a maximum transmit power. The maximum transmit power may be defined by the power class of UE 120. For example, for a UE 120 of power class 3, the maximum transmit power may be 23 dBm. As described elsewhere herein, a virtual port may be a combination of two or more non-coherent or partially coherent antenna ports of UE 120. For example, two or more non-coherent or partially coherent antenna ports may be combined using precoding and / or cyclic delay diversity to synthesize a virtual port. Additionally or alternatively, a virtual port may be a combination of one or more antenna ports. For example, a virtual port may be a combination of multiple (e.g., two or more antenna ports) or a single actual antenna port powered by a power amplifier that is capable of transmitting at a maximum transmit power without being combined with other antenna ports. In some aspects, a UE 120 that can use a virtual port to send uplink communications using maximum transmit power may be referred to as a Mode 2 UE, while a "Mode 1 UE" may refer to a UE 120 that is not capable of synthesizing a virtual port but is capable of using a full phase pre-decoder to support maximum transmit power using cyclic delay diversity using non-coherent ports and / or partially coherent ports. In some aspects, a Mode 1 UE may use a pre-decoder across non-coherent antenna ports to support maximum transmit power. For example, a Mode 1 UE may use pre-decoding and cyclic delay diversity to support maximum transmit power. In Mode 0, the power scaling factor is removed or set to 1. In this way, any single Tx chain and / or PA may deliver full power. In some cases, Mode 0 may be the default mode.

[0111] Additionally or alternatively, UE 120 may send to network node 110 an indication of the number of virtual ports that UE 120 can use to send uplink communications using the maximum transmit power. For example, UE 120 may indicate that UE 120 can only synthesize one (e.g., a single) virtual port that supports the maximum transmit power. As another example, UE 120 may indicate that UE 120 can synthesize multiple virtual ports that support the maximum transmit power. In some aspects, UE 120 may use a single message, a single set of bits, and / or a single field of a message to indicate whether UE 120 can use a virtual port to send uplink communications using the maximum transmit power, and to indicate the number of virtual ports that UE 120 can use to send uplink communications using the maximum transmit power.

[0112] As shown by reference numeral 610, as an example of a UE 120 having two transmit antennas (and / or two transmit chains), the UE 120 may send a one-bit indication (e.g., a single bit). A first value of the bit (e.g., 0) may indicate that the UE 120 is not capable of using a virtual port to transmit uplink communications using a maximum transmit power. A second value of the bit (e.g., 1) may indicate that the UE 120 is capable of using a single virtual port to transmit uplink communications using a maximum transmit power.

[0113] In some aspects, a UE 120 having four transmit antennas (and / or four transmit chains or power amplifiers) (referred to as a 4Tx UE) may use a one-bit indication (e.g., as described above in conjunction with Figure 5B In this case, the first value of the bit (e.g., 0) may indicate that the 4Tx UE cannot use the virtual port to send uplink communications using the maximum transmit power. The second value of the bit (e.g., 1) may indicate that the 4Tx UE can use at least one virtual port to send uplink communications using the maximum transmit power. For example, if the 4Tx UE is unable to use the virtual port due to the synthesis of two virtual ports (e.g., Figure 5B If a 4Tx UE behaves like a 2Tx UE due to deactivating two power amplifiers (for example, virtual port A and virtual port B), the second value of this bit may indicate that the 4Tx UE is able to use a single virtual port of the two virtual ports or both virtual ports to send uplink communications using the maximum transmit power. As another example, if a 4Tx UE behaves like a 2Tx UE due to deactivating two power amplifiers, the second value of this bit may indicate that the 4Tx UE is able to use a single virtual port synthesized from the two activated power amplifiers (for example, Figure 5B virtual port C) to send uplink communications using the maximum transmit power.

[0114] In some aspects, a 4Tx UE may use a multi-bit indication (e.g., two bits), wherein a first value of the bit indicates that the 4Tx UE cannot use a virtual port to send uplink communications using a maximum transmit power, and a second value of the bit indicates that the 4Tx UE can only use a first virtual port (e.g., Figure 5B The third value of the bit indicates that the 4Tx UE can use only the second virtual port (eg, virtual port A or virtual port C) to send uplink communications using the maximum transmit power, and the third value of the bit indicates that the 4Tx UE can use only the second virtual port (eg, Figure 5B The fourth value of the bit indicates that the 4Tx UE can use both the first virtual port and the second virtual port (individually) to send uplink communications using the maximum transmit power.

[0115] In some aspects, an N Tx UE (e.g., a 4Tx UE) may indicate in a UE capability report that the N Tx UE behaves like a K Tx UE (e.g., a 2Tx UE), where K < N. Additionally or alternatively, the N Tx UE may indicate in the UE capability report whether the N Tx UE behaves like a K Tx UE due to the combination of multiple virtual ports and / or whether the N Tx UE behaves like a K Tx UE due to the deactivation of a subset of the N Tx UE's power amplifiers, etc.

[0116] As an example of the UE 120 having four transmit antennas (and / or four transmit chains) as shown by reference numeral 615, the UE 120 may transmit a two-bit indication. A first value of this indication (e.g., 00) may indicate that the UE 120 is not able to use virtual ports to transmit uplink communications using maximum transmit power. A second value of this indication (e.g., 01) may indicate that the UE 120 is able to use at least one virtual port (e.g., one or more virtual ports) to transmit uplink communications using maximum transmit power, such as when the UE 120 is a power class 3 UE having four power amplifiers (each capable of transmitting up to 17 dBm) (e.g., where all four 17 dBm power amplifiers are combined to produce 23 dBm of power). A third value of this indication (e.g., 10) may indicate that the UE 120 is able to use two virtual ports to transmit simultaneous uplink communications using maximum transmit power on each of the two virtual ports (e.g., using different MIMO layers), such as when the UE 120 is a power class 3 UE having four power amplifiers (each capable of transmitting up to 20 dBm) (e.g., where the first 20 dBm power amplifier and the second 20 dBm power amplifier are combined to generate 23 dBm of power, and the third 20 dBm power amplifier and the fourth 20 dBm power amplifier are combined to generate 23 dBm of power). In some aspects, the value of this indication may indicate the exact number of virtual ports that the UE 120 is able to use to transmit uplink communications using maximum transmit power (e.g., one virtual port, two virtual ports, three virtual ports, etc.), such as by using the value 11.

[0117] In some aspects, a 4Tx UE that behaves like a 2Tx UE due to the synthesis of two virtual ports may indicate the ability to transmit using the maximum transmit power of each of the two virtual ports. For example, the 4Tx UE may indicate that none of the two virtual ports supports the maximum transmit power, only one of the two virtual ports supports the maximum transmit power, only the first of the two virtual ports supports the maximum transmit power, only the second of the two virtual ports supports the maximum transmit power, and / or both virtual ports (individually or independently) support the maximum transmit power, etc. Additionally or alternatively, a 4Tx UE that behaves like a 2Tx due to the synthesis of two virtual ports may indicate whether the two virtual ports are coherent or incoherent with each other (e.g., using a single bit indication). Additionally or alternatively, a 4Tx UE behaving like a 2Tx UE may indicate the number of activated power amplifiers (or transmit chains or transmit antennas), the number of deactivated power amplifiers (or transmit chains or transmit antennas), the number of virtual ports that the 4Tx UE can synthesize, the number of virtual ports that the 4Tx UE can use to transmit using a maximum transmit power, one or more virtual port identifiers (indicating which of the virtual ports the 4Tx UE can use to transmit using the maximum transmit power), and / or whether pairs or sets of virtual ports are coherent (or incoherent) with each other, etc. These examples also generally apply to N Tx UEs behaving like K Tx UEs, where K is less than N.

[0118] As another example of UE signaling, as shown by reference numeral 620, UE 120 may send a single bit to indicate whether UE 120 supports full power (e.g., the maximum transmit power of the power class of UE 120) by setting the power scaling factor in power control to one for all precoders. For example, this may indicate whether all transmit chains of UE 120 include corresponding power amplifiers that support the maximum transmit power. In some aspects, UE 120 having a fully rated power amplifier (e.g., a power amplifier that supports the maximum transmit power) included in each transmit chain of UE 120 may be referred to as a capability 1 UE. If UE 120 is a capability 1 UE, UE 120 does not need to signal any additional information about the full power capability of UE 120. For example, if UE 120 is a capability 1 UE, UE 120 does not need to signal any information in the two bits described below for indicating support for mode 1 or mode 2 and / or does not need to signal any information about the TPMI that supports the maximum transmit power (e.g., as described below in conjunction with Figures 7 to 10 described), etc.

[0119] As further shown, UE 120 may send two bits indicating whether UE 120 supports only mode 1 and not mode 2, supports only mode 2 and not mode 1, supports both mode 1 and mode 2, or supports neither mode 1 nor mode 2. Details about mode 1 and mode 2 are described above. For example, "mode 1 capability" may refer to the ability to support maximum transmit power using a pre-decoder across non-coherent antenna ports. As another example, "mode 2 capability" may refer to the ability to support maximum transmit power using a virtual port. In some aspects, if UE 120 does not have any transmit chain with a fully rated power amplifier (sometimes referred to as a capability 2 UE) and / or if less than all transmit chains (e.g., a subset of transmit chains) of UE 120 have a fully rated power amplifier (sometimes referred to as a capability 3 UE), UE 120 may use these two bits. In contrast, if UE 120 is a capability 1 UE, UE 120 does not need to signal any information in these two bits, as described above. In some aspects, if UE 120 supports mode 2 (eg, supports or does not support mode 1), UE 120 may send a bitmap indicating the TPMI set of maximum transmit powers supported for uplink communications to network node 110, as described below in conjunction with Figures 7 to 10 If UE 120 does not support Mode 2, UE 120 may avoid sending the bitmap (eg, because UE 120 does not support virtual ports).

[0120] As further shown, UE 120 may send the above information (e.g., a single bit and / or two bits) for each frequency band of a frequency band-band combination (e.g., frequency bands in a frequency band combination) supported by UE 120 (e.g., for each frequency band of each frequency band-band combination supported by UE 120). For example, UE 120 may have different capabilities for different frequency bands in each frequency band-band combination. In some aspects, UE 120 may send the above information for each frequency band in each frequency band-band combination supported by UE 120.

[0121] In some aspects, UE 120 may send an indication in a field of a capability report (e.g., UE capability report). In some aspects, when each transmit chain of UE 120 includes a power amplifier capable of supporting the maximum transmit power (e.g., and thus a virtual port is not necessary to achieve the maximum transmit power), UE 120 may send a capability report where the field is empty or null value, or the field is excluded.

[0122] As indicated by reference numeral 625, the network node 110 may send an SRS configuration to the UE 120 based at least in part on the indication of whether the UE 120 is capable of using the virtual port to send uplink communications using the maximum transmit power. For example, the network node 110 may determine the SRS configuration based at least in part on the indication of whether the UE 120 is capable of using the virtual port to send uplink communications using the maximum transmit power, and may send the determined SRS configuration to the UE 120. Additionally or alternatively, the network node 110 may determine the SRS configuration based at least in part on the indication from the UE 120 of the number of virtual ports that the UE 120 is capable of using to send uplink communications using the maximum transmit power.

[0123] In some aspects, network node 110 may determine, based at least in part on the indication, a number of SRS resources to be configured for an SRS resource set for UE 120. Additionally or alternatively, network node 110 may determine, based at least in part on the indication, a type (e.g., a use case, etc.) of SRS resources to be configured for an SRS resource set for UE 120. Network node 110 may indicate the determined number of SRS resources configured for an SRS resource set and / or the determined type of these SRS resources in an SRS configuration sent to UE 120.

[0124] For example, the network node 110 may generally configure the SRS resources (e.g., at least for the SRS resources with the codebook use case) with the same number of ports as the number of antenna ports of the UE 120. For example, for a UE 120 with four transmit antennas, the network node 110 assigns SRS resources (e.g., first SRS resources) including four antenna ports. However, if the UE 120 is capable of synthesizing one or more virtual ports, the network node 110 may configure additional SRS resources (e.g., second SRS resources) for the one or more virtual ports, in Figure 6 1 and 12. For example, if UE 120 is capable of synthesizing a single virtual port, network node 110 may configure UE 120 with additional SRS resources having a single port (e.g., for a single virtual port). As another example, if UE 120 is capable of synthesizing two virtual ports, network node 110 may configure UE 120 with additional SRS resources including SRS resources consisting of Figure 6 2 and SRS resource 3 in the example (eg, where UE 120 selects one of the two virtual ports to use the SRS resource for detection to save SRS overhead) or by Figure 6 The two ports shown in SRS resource 1 in FIG. 1 (eg, one resource for each virtual port, which allows UE 120 to detect both virtual ports).

[0125] In some cases, the UE may be configured with eight transmit ports (e.g., eight transmit antennas (and / or eight transmit chains and / or power amplifiers)) and may be referred to as an 8Tx UE. In some cases, for example, Mode 1 and Mode 2 may be used for 8Tx PUSCH. The UE may be configured with a "big + small" PA configuration. For example, the UE may have a 23dBm PA ("PA1"), a 20dBm PA ("PA2"), two 17dBm PAs ("PA3" and "PA4"), and four 14dBm PAs ("PA5", "PA6", "PA7", and "PA8"). In this example, PA1 may be used to transmit a rank 1 PUSCH, PA1 and PA2 may be used to transmit a rank 2 PUSCH, PA1 to PA4 may be used to transmit a rank 4 PUSCH, and PA1 to PA8 may be used to transmit a rank 8 PUSCH. However, for Mode 0, equipping 8 PAs to achieve full power may result in higher manufacturing costs and unnecessary greater power consumption by the UE. Additionally, applying Mode 1 or Mode 2 (whose power scaling factor is 1 / 8 times the number of Tx ports allowed to be activated) may result in inefficient use of PA power.

[0126] Some aspects of the techniques and apparatus described herein may facilitate implementation of an 8Tx UE with a full power mode (e.g., "Mode 0A") in which different PA powers may be applied to different PAs. In some aspects, a total power scaling factor for determining a total transmit power associated with a PUSCH communication may include a sum of multiple power scaling factors associated with a set of transmit ports (and / or PAs). In some aspects, for example, for Mode 0A, a UE may apply a power scaling factor where α i is the power scaling factor of the PA of the ith Tx port. If the ith Tx port is enabled in PUSCH transmission, then δ i =1. Otherwise, δ i = 0. For example, for a UE having one 23 dBm PA ("PA1"), one 20 dBm PA ("PA2"), two 17 dBm PAs ("PA3" and "PA4"), and four 14 dBm PAs ("PA5", "PA6", "PA7", and "PA8"), a table such as the following Table 1 may be used to determine the power scaling factor α.

[0127] Tx Port Index Power Scaling Factor Tx Port 1 <![CDATA[α1=1]]> Tx Port 2 <![CDATA[α2=1 / 2]]> Tx Port 3 <![CDATA[α3=1 / 4]]> Tx Port 4 <![CDATA[α4=1 / 4]]> Tx Port 5 <![CDATA[α5=1 / 8]]> Tx Port 6 <![CDATA[α6=1 / 8]]> Tx Port 7 <![CDATA[α7=1 / 8]]> Tx Port 8 <![CDATA[α8=1 / 8]]>

[0128] Table 1

[0129] For example, for 8 non-coherent Tx, only 1 transmit port may be activated for rank 1 Tx. Depending on which transmit port is activated, α = corresponding α i In some aspects, for 8 non-coherent Txs, for rank K (K>1) Txs, K Txs may be activated, and α=α of K corresponding Txs. i The sum of α is capped at 1. For 8 partially coherent Tx, for 1 Tx, Tx 1 to 4 (in the first panel) can be activated, and α = α of Tx 1 / 2 / 3 / 4 i The sum of , with an upper limit of 1.

[0130] As indicated above, Figure 6 are provided as examples. Other examples can be found in the Figure 6 The examples described are different.

[0131] Figure 7 700 is a diagram illustrating an example 700 associated with a full power eight-port uplink transmission mode according to the present disclosure. As shown, a UE 702 and a network node 704 may communicate with each other. The UE 702 may be, resemble, or include Figure 1 , Figure 2 , Figure 5A , Figure 5B and Figure 6 The network node 704 may be, be similar to, or include the UE 120 depicted in FIG. Figure 1 , Figure 2 and Figure 6 The network node 110 depicted in FIG. 1 may be a network node 110 of FIG.

[0132] As shown by reference numeral 706, UE 702 may transmit capability information and network node 704 may receive the capability information. The capability information may be associated with a full power mode corresponding to eight-port uplink transmit operations associated with eight transmit ports (shown as "Tx1," "Tx2," "Tx3," "Tx4," "Tx5," "Tx6," "Tx7," and "Tx8") of UE 702. In some aspects, UE 702 may include eight PAs, and at least two of the eight PAs may correspond to different amplification values.

[0133] In some aspects, the amplification value associated with a corresponding PA in the eight PAs may be based on a corresponding power scaling factor in a plurality of power scaling factors. The power scaling factor in the plurality of power scaling factors may include a ratio of a total power associated with the eight PAs to a total power control power. In some aspects, the capability information may not include an indication of any power scaling factor in the plurality of power scaling factors. In some aspects, based on the eight-port uplink transmit operation being a fully coherent transmit operation, the capability information may not include an indication of any power scaling factor in the plurality of power scaling factors.

[0134] In some aspects, the capability information may indicate at least one power scaling factor of a plurality of power scaling factors. In some aspects, the capability information may indicate each power scaling factor of a plurality of power scaling factors. In some aspects, based on the eight-port uplink transmit operation being a non-coherent transmit operation, the capability information may indicate each power scaling factor of a plurality of power scaling factors.

[0135] In some aspects, the first subset of eight transmit ports may include the first antenna group 708 and the second subset of eight transmit ports may include the second antenna group 710. The capability information may indicate a first aggregate power scaling factor corresponding to the first antenna group and a second aggregate power scaling factor corresponding to the second antenna group In some aspects, first antenna group 708 may include a first plurality of coherent transmit ports and second antenna group 710 may include a second plurality of coherent transmit ports. In some aspects, transmit ports in the first plurality of coherent transmit ports may be non-coherent with respect to transmit ports in the second plurality of coherent transmit ports.

[0136] As shown by reference numeral 712, the network node 704 may send an SRS configuration, and the UE 702 may receive the SRS configuration. The SRS configuration may be based on the configuration information. As shown by reference numeral 714, the UE 702 may configure the total transmit power of the PUSCH communication based on the predecoder and the total power scaling factor. The total power scaling factor may include the sum of multiple power scaling factors associated with the UE's transmit port set, each transmit port in the transmit port set corresponding to a PA in the PA set. The UE 702 may obtain, identify or determine the total transmit power of the PUSCH communication based on the predecoder and the total power scaling factor. As shown by reference numeral 716, the UE 702 may send a PUSCH communication, and the network node 704 may receive the PUSCH communication. The PUSCH communication may be sent based on the total transmit power. For example, the UE 702 may configure the total transmit power based on the predecoder and the total power scaling factor, and then the UE may send the PUSCH communication according to the total transmit power.

[0137] As indicated above, Figure 7are provided as examples. Other examples can be found in the Figure 7 The examples described are different.

[0138] Figure 8 is a diagram illustrating an example process 800 performed, for example, by a UE according to the present disclosure. Example process 800 is an example of a UE (eg, UE 702) performing operations associated with a full-power eight-port uplink transmission mode.

[0139] like Figure 8 As shown, in some aspects, process 800 may include configuring a total transmit power for PUSCH communications based on a pre-decoder and a total power scaling factor, the total power scaling factor comprising a sum of multiple power scaling factors associated with a set of transmit ports of the UE, each transmit port in the set of transmit ports corresponding to a PA in a set of PAs (block 810). For example, a UE (e.g., using Fig.10 The communication manager 1008 and / or the transmitting component 1004 depicted in the figure may configure the total transmit power of the PUSCH communication based on the predecoder and the total power scaling factor, wherein the total power scaling factor includes the sum of multiple power scaling factors associated with a set of transmit ports of the UE, each transmit port in the set of transmit ports corresponding to a PA in the PA set, as described above.

[0140] like Figure 8 As further shown, in some aspects, process 800 may include: transmitting the PUSCH communication to a network node based on the total transmit power (block 820). Fig.10 The communication manager 1008 and / or the transmitting component 1004 depicted in FIG. 1 may transmit the PUSCH communication to the network node based on the total transmit power, as described above.

[0141] Process 800 may include additional aspects, such as any single aspect or any combination of aspects described below and / or in conjunction with one or more other processes described elsewhere herein.

[0142] In a first aspect, a power scaling factor in the plurality of power scaling factors is based on a maximum output power associated with a corresponding PA in the PA set. In a second aspect, either alone or in combination with the first aspect, based on the sum of the plurality of power scaling factors being greater than 1, the total power scaling factor is limited to a value of 1. In a third aspect, either alone or in combination with one or more of the first and second aspects, the set of transmit ports includes eight transmit ports and the set of PAs includes eight PAs, and process 800 includes: sending capability information associated with a full power mode to the network node, the full power mode corresponding to an eight-port uplink transmit operation associated with the eight transmit ports, wherein at least two PAs in the set of PAs correspond to different amplification values. In a fourth aspect, either alone or in combination with the third aspect, the capability information does not include an indication of any power scaling factor in the plurality of power scaling factors. In a fifth aspect, either alone or in combination with the fourth aspect, based on the eight-port uplink transmit operation including a fully coherent transmit operation, the capability information does not include an indication of any power scaling factor in the plurality of power scaling factors.

[0143] In a sixth aspect, either alone or in combination with the third aspect, the capability information indicates at least one of the plurality of power scaling factors. In a seventh aspect, either alone or in combination with the sixth aspect, the capability information indicates each of the plurality of power scaling factors. In an eighth aspect, either alone or in combination with the seventh aspect, based on the eight-port uplink transmit operation comprising a non-coherent transmit operation, the capability information indicates each of the plurality of power scaling factors.

[0144] In a ninth aspect, alone or in combination with one or more of aspects 6 to 8, the first subset of the eight transmit ports includes a first antenna group and the second subset of the eight transmit ports includes a second antenna group, and wherein the capability information indicates a first aggregate power scaling factor corresponding to the first antenna group and a second aggregate power scaling factor corresponding to the second antenna group. In a tenth aspect, alone or in combination with the ninth aspect, the first antenna group includes a first plurality of coherent transmit ports and the second antenna group includes a second plurality of coherent transmit ports, and wherein transmit ports in the first plurality of coherent transmit ports are non-coherent with respect to transmit ports in the second plurality of coherent transmit ports. In an eleventh aspect, alone or in combination with one or more of aspects 3 to 10, process 800 includes: receiving an SRS configuration from the network node based on the capability information.

[0145] although Figure 8 An example block diagram of process 800 is shown, but in some aspects, process 800 may include Figure 8Additional blocks, fewer blocks, different blocks, or blocks arranged in a different manner than those depicted in the process 800. Additionally or alternatively, two or more blocks of the blocks of process 800 may be performed in parallel.

[0146] Fig. 9 is a diagram illustrating an example process 900 performed, for example, by a network node in accordance with the present disclosure. The example process 900 is an example of a network node (eg, network node 704) performing operations associated with a full-power eight-port uplink transmission mode.

[0147] like Fig. 9 As shown, in some aspects, process 900 may include receiving, from a UE, a PUSCH communication having a total transmit power based on a predecoder and a total power scaling factor, the total power scaling factor comprising a sum of a plurality of power scaling factors associated with a set of transmit ports of the UE, each transmit port in the set of transmit ports corresponding to a PA in a set of PAs (block 910). For example, a network node (e.g., using Fig.11 The communication manager 1108 and / or receiving component 1102 depicted in the figure can receive PUSCH communications from a UE having a total transmit power based on a predecoder and a total power scaling factor, wherein the total power scaling factor includes a sum of multiple power scaling factors associated with a set of transmit ports of the UE, each transmit port in the set of transmit ports corresponding to a PA in a PA set, as described above.

[0148] like Fig. 9 As further shown, in some aspects, process 900 may include: performing a wireless communication task based on receiving the PUSCH communication (block 920). For example, a network node (e.g., using Fig.11 The communication manager 1108, receiving component 1102 and / or sending component 1104 depicted in the figure can perform wireless communication tasks based on receiving the PUSCH communication, as described above.

[0149] Process 900 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.

[0150] In a first aspect, a power scaling factor in the plurality of power scaling factors is based on a maximum output power associated with a corresponding PA in the set of PAs. In a second aspect, either alone or in combination with the first aspect, based on the sum of the plurality of power scaling factors being greater than 1, the total power scaling factor is limited to a value of 1. In a third aspect, either alone or in combination with one or more of the first and second aspects, the set of transmit ports includes eight transmit ports and the set of PAs includes eight PAs, and process 900 includes: receiving capability information associated with a full power mode from the UE, the full power mode corresponding to an eight-port uplink transmit operation associated with the eight transmit ports, wherein at least two PAs in the set of PAs correspond to different amplification values.

[0151] In a fourth aspect, either alone or in combination with the third aspect, the capability information does not include an indication of any power scaling factor in the plurality of power scaling factors. In a fifth aspect, either alone or in combination with the fourth aspect, based on the eight-port uplink transmit operation including a fully coherent transmit operation, the capability information does not include an indication of any power scaling factor in the plurality of power scaling factors.

[0152] In a sixth aspect, either alone or in combination with the third aspect, the capability information indicates at least one of the plurality of power scaling factors. In a seventh aspect, either alone or in combination with the sixth aspect, the capability information indicates each of the plurality of power scaling factors. In an eighth aspect, either alone or in combination with the seventh aspect, based on the eight-port uplink transmit operation comprising a non-coherent transmit operation, the capability information indicates each of the plurality of power scaling factors.

[0153] In a ninth aspect, alone or in combination with one or more of aspects 6 to 8, the first subset of the eight transmit ports includes a first antenna group and the second subset of the eight transmit ports includes a second antenna group, and wherein the capability information indicates a first aggregate power scaling factor corresponding to the first antenna group and a second aggregate power scaling factor corresponding to the second antenna group. In a tenth aspect, alone or in combination with the ninth aspect, the first antenna group includes a first plurality of coherent transmit ports and the second antenna group includes a second plurality of coherent transmit ports, and wherein transmit ports in the first plurality of coherent transmit ports are non-coherent with respect to transmit ports in the second plurality of coherent transmit ports.

[0154] In an eleventh aspect, alone or in combination with one or more of the third to tenth aspects, process 900 includes: sending an SRS configuration to the UE based on the capability information.

[0155] although Fig. 9An example block diagram of process 900 is shown, but in some aspects, process 900 may include Fig. 9 Additional blocks, fewer blocks, different blocks, or blocks arranged in a different manner than those depicted in the process 900. Additionally or alternatively, two or more of the blocks in the process 900 may be performed in parallel.

[0156] Fig.10 1 is a diagram of an example apparatus 1000 for wireless communication according to the present disclosure. Apparatus 1000 may be a UE, or a UE may include apparatus 1000. In some aspects, apparatus 1000 includes a receiving component 1002 and a transmitting component 1004 that may communicate with each other (e.g., via one or more buses and / or one or more other components). As shown, apparatus 1000 may communicate with another apparatus 1006 (such as a UE, a base station, or another wireless communication device) using receiving component 1002 and transmitting component 1004. As further shown, apparatus 1000 may include a communication manager 1008.

[0157] In some aspects, the apparatus 1000 may be configured to perform Figure 7 Additionally or alternatively, the apparatus 1000 may be configured to perform one or more processes described herein, such as Figure 8 In some aspects, the apparatus 1000 and / or Fig.10 One or more of the components shown may include a combination of Figure 2 Additionally or alternatively, Fig.10 One or more of the components shown may be combined with Figure 2 Additionally or alternatively, one or more components in the set of components may be implemented at least in part as software stored in a memory. For example, a component (or a portion of a component) may be implemented as instructions or code stored in a non-transitory computer-readable medium and can be executed by a controller or processor to perform the function or operation of the component.

[0158] The receiving component 1002 may receive communications, such as reference signals, control information, data communications, or combinations thereof, from the device 1006. The receiving component 1002 may provide the received communications to one or more other components of the device 1000. In some aspects, the receiving component 1002 may perform signal processing (such as filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, demapping, equalization, interference cancellation, or decoding, etc.) on the received communications and may provide the processed signals to one or more other components of the device 1000. In some aspects, the receiving component 1002 may include combining Figure 2One or more antennas, modems, demodulators, MIMO detectors, receive processors, controllers / processors, memories, or combinations thereof of the described UE.

[0159] The transmitting component 1004 may transmit communications, such as reference signals, control information, data communications, or combinations thereof, to the device 1006. In some aspects, one or more other components of the device 1000 may generate communications and may provide the generated communications to the transmitting component 1004 for transmission to the device 1006. In some aspects, the transmitting component 1004 may perform signal processing (such as filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding, etc.) on the generated communications and may transmit the processed signals to the device 1006. In some aspects, the transmitting component 1004 may include combining Figure 2 One or more antennas, modems, modulators, transmit MIMO processors, transmit processors, controllers / processors, memories, or combinations thereof of the described UE. In some aspects, the transmit component 1004 can be co-located with the receive component 1002 in a transceiver.

[0160] In some examples, a component for configuring, sending, outputting, or transmitting (or a component for outputting for sending) may include the above-mentioned components. Figure 2 One or more antennas, modulators, transmit MIMO processors, transmit processors, or a combination thereof of a described UE.

[0161] In some examples, the means for receiving (or the means for obtaining) may include the above-mentioned Figure 2 One or more antennas, demodulators, MIMO detectors, receive processors, or a combination thereof of a described UE.

[0162] In some cases, a device may not actually send, for example, signals and / or data, but may have an interface (components for outputting) for outputting signals and / or data for transmission. For example, a processor may output signals and / or data to an RF front end via a bus interface for transmission. Similarly, a device may not actually receive signals and / or data, but may have an interface (components for obtaining) for obtaining signals and / or data received from another device. For example, a processor may obtain (or receive) signals and / or data from an RF front end via a bus interface for reception. In various aspects, the RF front end may include various components, including, for example, Figure 2 The transmit and receive processors, transmit and receive MIMO processors, modulators, demodulators, etc. described in the examples.

[0163] The communication manager 1008 and / or the transmission component 1004 may configure a total transmit power for PUSCH communications based on the pre-decoder and a total power scaling factor, the total power scaling factor comprising a sum of multiple power scaling factors associated with a set of transmit ports of the UE, each transmit port in the set of transmit ports corresponding to a PA in the set of PAs. In some aspects, the communication manager 1008 may include combining Figure 2 One or more antennas, modems, controllers / processors, memories, or combinations thereof of the described UE. In some aspects, the communication manager 1008 may include the receiving component 1002 and / or the sending component 1004. In some aspects, the communication manager 1008 may be, be similar to, or include Figure 1 and Figure 2 In some aspects, the communication manager 1008 and / or the transmitting component 1004 may transmit the PUSCH communication to the network node based on the total transmit power.

[0164] The communication manager 1008 and / or the transmitting component 1004 can transmit capability information associated with a full power mode to the network node, the full power mode corresponding to an eight-port uplink transmit operation associated with eight transmit ports of the UE, the UE including eight PAs, at least two of the eight PAs corresponding to different amplification values. The communication manager 1008 and / or the receiving component 1002 can receive an SRS configuration from the network node based on the capability information.

[0165] Fig.10 The number and arrangement of components shown are provided as examples. In practice, there may be Fig.10 Additional components, fewer components, different components, or components arranged in a different manner than those shown. Fig.10 Two or more components shown may be implemented in a single component, or Fig.10 The single component shown may be implemented as multiple distributed components. Additionally or alternatively, Fig.10 The component set (one or more components) shown may be described as being executable by Fig.10 Another component shown may be a collection of components that perform one or more functions.

[0166] Fig.111 is a diagram of an example apparatus 1100 for wireless communication according to the present disclosure. Apparatus 1100 may be a network node, or a network node may include apparatus 1100. In some aspects, apparatus 1100 includes a receiving component 1102 and a transmitting component 1104 that may communicate with each other (e.g., via one or more buses and / or one or more other components). As shown, apparatus 1100 may communicate with another apparatus 1106 (such as a UE, a base station, or another wireless communication device) using receiving component 1102 and transmitting component 1104. As further shown, apparatus 1100 may include a communication manager 1108.

[0167] In some aspects, the apparatus 1100 may be configured to perform Figure 7 Additionally or alternatively, the apparatus 1100 may be configured to perform one or more processes described herein, such as Fig. 9 The process 900. In some aspects, Fig.11 The device 1100 and / or one or more components shown may include a combination of Figure 2 Additionally or alternatively, Fig.11 One or more of the components shown may be combined with Figure 2 Additionally or alternatively, one or more components in the set of components may be implemented at least in part as software stored in a memory. For example, a component (or a portion of a component) may be implemented as instructions or code stored in a non-transitory computer-readable medium and can be executed by a controller or processor to perform the function or operation of the component.

[0168] The receiving component 1102 may receive communications from the device 1106, such as reference signals, control information, data communications, or combinations thereof. The receiving component 1102 may provide the received communications to one or more other components of the device 1100. In some aspects, the receiving component 1102 may perform signal processing (such as filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, demapping, equalization, interference cancellation, or decoding, etc.) on the received communications and may provide the processed signals to one or more other components of the device 1100. In some aspects, the receiving component 1102 may include combining Figure 2 One or more antennas, modems, demodulators, MIMO detectors, receive processors, controllers / processors, memories, or combinations thereof, of the described network nodes.

[0169] The transmitting component 1104 may transmit communications, such as reference signals, control information, data communications, or combinations thereof, to the device 1106. In some aspects, one or more other components of the device 1100 may generate communications and may provide the generated communications to the transmitting component 1104 for transmission to the device 1106. In some aspects, the transmitting component 1104 may perform signal processing (such as filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding, etc.) on the generated communications and may transmit the processed signals to the device 1106. In some aspects, the transmitting component 1104 may include combining Figure 2 One or more antennas, modems, modulators, transmit MIMO processors, transmit processors, controllers / processors, memories, or combinations thereof of the described network nodes. In some aspects, the transmit component 1104 can be co-located with the receive component 1102 in a transceiver.

[0170] In some examples, the means for sending, outputting, or transmitting (or the means for outputting for sending) may include the above-mentioned Figure 2 One or more antennas, modulators, transmit MIMO processors, transmit processors, or a combination thereof of a described UE.

[0171] In some examples, the means for receiving (or the means for obtaining) may include the above-mentioned Figure 2 One or more antennas, demodulators, MIMO detectors, receive processors, or a combination thereof of a described UE.

[0172] In some cases, a device may not actually send, for example, signals and / or data, but may have an interface (components for outputting) for outputting signals and / or data for transmission. For example, a processor may output signals and / or data to an RF front end via a bus interface for transmission. Similarly, a device may not actually receive signals and / or data, but may have an interface (components for obtaining) for obtaining signals and / or data received from another device. For example, a processor may obtain (or receive) signals and / or data from an RF front end via a bus interface for reception. In various aspects, the RF front end may include various components, including, for example, Figure 2 The transmit and receive processors, transmit and receive MIMO processors, modulators, demodulators, etc. described in the examples.

[0173] The communication manager 1108 and / or the receiving component 1102 may receive a PUSCH communication from a UE having a total transmit power based on a pre-decoder and a total power scaling factor, the total power scaling factor comprising a sum of a plurality of power scaling factors associated with a set of transmit ports of the UE, each transmit port in the set of transmit ports corresponding to a PA in the set of PAs. In some aspects, the communication manager 1108 may include combining Figure 2 One or more antennas, modems, controllers / processors, memories, or combinations thereof of the described network nodes. In some aspects, the communication manager 1108 may include a receiving component 1102 and / or a sending component 1104. In some aspects, the communication manager 1108 may be, be similar to, or include Figure 1 and Figure 2 The communication manager 150 depicted in FIG. 1104 or included in the communication manager 150. The communication manager 1108, the receiving component 1102 and / or the sending component 1104 can perform wireless communication tasks based on receiving the PUSCH communication.

[0174] The communication manager 1108 and / or the receiving component 1102 can receive capability information associated with a full power mode from a UE, the full power mode corresponding to an eight-port uplink transmit operation associated with eight antenna ports of the UE, the UE including eight PAs, at least two of the eight PAs corresponding to different amplification values. The communication manager 1108 and / or the transmitting component 1104 can send an SRS configuration to the UE based on the capability information.

[0175] Fig.11 The number and arrangement of components shown are provided as examples. In practice, there may be Fig.11 Additional components, fewer components, different components, or components arranged in a different manner than those shown. Fig.11 Two or more components shown may be implemented in a single component, or Fig.11 The single component shown may be implemented as multiple distributed components. Additionally or alternatively, Fig.11 The component set (one or more components) shown may be described as being executable by Fig.11 Another component shown may be a collection of components that perform one or more functions.

[0176] The following provides an overview of some aspects of the disclosure:

[0177] Aspect 1: A method for wireless communication performed by a device at a user equipment (UE), the method comprising: configuring a total transmit power of a physical uplink shared channel (PUSCH) communication based on a predecoder and a total power scaling factor, the total power scaling factor comprising a sum of multiple power scaling factors associated with a transmit port set of the UE, each transmit port in the transmit port set corresponding to a PA in a power amplifier (PA) set; and sending the PUSCH communication to a network node based on the total transmit power.

[0178] Aspect 2: The method according to aspect 1, wherein a power scaling factor in the plurality of power scaling factors is based on a maximum output power associated with a corresponding PA in the set of PAs.

[0179] Aspect 3: The method according to aspect 1 or aspect 2, wherein based on the sum of the multiple power scaling factors being greater than 1, the total power scaling factor is limited to a value of 1.

[0180] Aspect 4: A method according to any one of Aspects 1 to 3, wherein the transmitting port set includes eight transmitting ports and the PA set includes eight PAs, the method further comprising: sending capability information associated with a full power mode to the network node, the full power mode corresponding to an eight-port uplink transmitting operation associated with the eight transmitting ports, wherein at least two PAs in the PA set correspond to different amplification values.

[0181] Aspect 5: The method of aspect 4, wherein the capability information does not include an indication of any power scaling factor of the plurality of power scaling factors.

[0182] Aspect 6: The method according to aspect 5, wherein based on the eight-port uplink transmission operation including a fully coherent transmission operation, the capability information does not include an indication of any power scaling factor of the plurality of power scaling factors.

[0183] Aspect 7: The method according to aspect 4, wherein the capability information indicates at least one power scaling factor among the plurality of power scaling factors.

[0184] Aspect 8: The method according to aspect 7, wherein the capability information indicates each power scaling factor of the plurality of power scaling factors.

[0185] Aspect 9: The method according to aspect 8, wherein based on the eight-port uplink transmission operation including a non-coherent transmission operation, the capability information indicates each power scaling factor of the plurality of power scaling factors.

[0186] Aspect 10: A method according to any one of Aspects 7 to 9, wherein the first subset of the eight transmitting ports includes a first antenna group and the second subset of the eight transmitting ports includes a second antenna group, and wherein the capability information indicates a first aggregation power scaling factor corresponding to the first antenna group and a second aggregation power scaling factor corresponding to the second antenna group.

[0187] Aspect 11: A method according to Aspect 10, wherein the first antenna group includes a first plurality of coherent transmission ports and the second antenna group includes a second plurality of coherent transmission ports, and wherein the transmission ports in the first plurality of coherent transmission ports are non-coherent with respect to the transmission ports in the second plurality of coherent transmission ports.

[0188] Aspect 12: The method according to any one of aspects 4 to 11, the method further comprising: receiving a sounding reference signal (SRS) configuration from the network node based on the capability information.

[0189] Aspect 13: A method of wireless communication performed by a device at a network node, the method comprising: receiving a physical uplink shared channel (PUSCH) communication from a user equipment (UE) having a total transmit power based on a predecoder and a total power scaling factor, the total power scaling factor comprising a sum of multiple power scaling factors associated with a transmit port set of the UE, each transmit port in the transmit port set corresponding to a PA in a power amplifier (PA) set; and performing a wireless communication task based on receiving the PUSCH communication.

[0190] Aspect 14: The method of aspect 13, wherein a power scaling factor of the plurality of power scaling factors is based on a maximum output power associated with a corresponding PA in the set of PAs.

[0191] Aspect 15: The method according to aspect 13 or aspect 14, wherein based on the sum of the multiple power scaling factors being greater than 1, the total power scaling factor is limited to a value of 1.

[0192] Aspect 16: A method according to any one of Aspects 13 to 15, wherein the transmitting port set includes eight transmitting ports and the PA set includes eight PAs, the method further comprising: receiving capability information associated with a full power mode from the UE, the full power mode corresponding to an eight-port uplink transmitting operation associated with the eight transmitting ports, wherein at least two PAs in the PA set correspond to different amplification values.

[0193] Aspect 17: The method according to aspect 16, wherein the capability information does not include an indication of any power scaling factor of the plurality of power scaling factors.

[0194] Aspect 18: The method according to aspect 17, wherein based on the eight-port uplink transmission operation including a fully coherent transmission operation, the capability information does not include an indication of any power scaling factor of the plurality of power scaling factors.

[0195] Aspect 19: The method according to aspect 16, wherein the capability information indicates at least one power scaling factor among the plurality of power scaling factors.

[0196] Aspect 20: The method according to aspect 19, wherein the capability information indicates each power scaling factor of the plurality of power scaling factors.

[0197] Aspect 21: The method according to aspect 20, wherein based on the eight-port uplink transmission operation including a non-coherent transmission operation, the capability information indicates each power scaling factor of the plurality of power scaling factors.

[0198] Aspect 22: A method according to any one of Aspects 19 to 21, wherein the first subset of the eight transmitting ports includes a first antenna group and the second subset of the eight transmitting ports includes a second antenna group, and wherein the capability information indicates a first aggregation power scaling factor corresponding to the first antenna group and a second aggregation power scaling factor corresponding to the second antenna group.

[0199] Aspect 23: A method according to Aspect 22, wherein the first antenna group includes a first plurality of coherent transmission ports and the second antenna group includes a second plurality of coherent transmission ports, and wherein the transmission ports in the first plurality of coherent transmission ports are non-coherent with respect to the transmission ports in the second plurality of coherent transmission ports.

[0200] Aspect 24: According to any one of aspects 16 to 23, the method further includes: sending a sounding reference signal (SRS) configuration to the UE based on the capability information.

[0201] Aspect 25: An apparatus for performing wireless communications 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 individually or collectively by the one or more processors to cause the apparatus to perform a method according to one or more of Aspects 1 to 12.

[0202] Aspect 26: A device for wireless communication, the device 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 individually or collectively execute the method according to one or more aspects of Aspects 1 to 12.

[0203] Aspect 27: An apparatus for wireless communication, the apparatus comprising at least one component for performing the method according to one or more of aspects 1 to 12.

[0204] Aspect 28: A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by a processor to perform the method according to one or more of aspects 1 to 12.

[0205] Aspect 29: A non-transitory computer-readable medium storing an instruction set for wireless communication, the instruction set comprising one or more instructions that, when executed by one or more processors of a device, cause the device to perform a method according to one or more of aspects 1 to 12.

[0206] Aspect 30: An apparatus for performing wireless communications 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 individually or collectively by the one or more processors to cause the apparatus to perform a method according to one or more of Aspects 13 to 24.

[0207] Aspect 31: A device for wireless communication, the device comprising: one or more memories and one or more processors coupled to the one or more processors, the one or more processors being configured to individually or collectively execute the method according to one or more aspects of Aspects 13 to 24.

[0208] Aspect 32: An apparatus for wireless communication, the apparatus comprising at least one component for performing the method according to one or more of aspects 13 to 24.

[0209] Aspect 33: A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by a processor to perform the method according to one or more of aspects 13 to 24.

[0210] Aspect 34: A non-transitory computer-readable medium storing an instruction set for wireless communication, the instruction set comprising one or more instructions, which, when executed by one or more processors of a device, causes the device to perform a method according to one or more of aspects 13 to 24.

[0211] The foregoing disclosure provides illustration and description, but is not intended to be exhaustive or to limit the aspects to the precise forms disclosed. Modifications and variations may be made in light of the foregoing disclosure or may be acquired from practice of the various aspects.

[0212] As used herein, the term "component" is intended to be broadly interpreted as a combination of hardware and / or hardware and software. Whether referred to as software, firmware, middleware, microcode, hardware description language or other names, "software" should be broadly interpreted as meaning instructions, instruction sets, codes, code segments, program codes, programs, subroutines, software modules, applications, software applications, software packages, routines, subroutines, objects, executable files, execution threads, processes and / or functions, etc. As used herein, a "processor" is implemented by a combination of hardware and / or hardware and software. It will be apparent that the systems and / or methods described herein can be implemented by a combination of hardware and / or hardware and software in different forms. The actual dedicated control hardware or software code used to implement these systems and / or methods does not limit various aspects. Therefore, the operation and behavior of the system and / or method are not described herein with reference to a specific software code, because it will be understood by those skilled in the art that software and hardware can be designed to implement the system and / or method at least in part based on the description herein.

[0213] As used herein, "satisfying a threshold" may refer to a value being greater than a threshold, greater than or equal to a threshold, less than a threshold, less than or equal to a threshold, equal to a threshold, not equal to a threshold, etc., depending on the context.

[0214] Although the specific combination of features is stated in the claims and / or disclosed in the specification, these combinations are not intended to limit the disclosure of various aspects. Many of these features can be combined in a manner that is not specifically stated in the claims and / or is not disclosed in the specification. The disclosure of various aspects includes each dependent claim combined with each other claim in the claim set. As used herein, the phrase "at least one of" the list of items refers to any combination of these items (it includes a single member). As an 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, and any combination with multiple identical elements (for example, 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 sorting of a, b and c).

[0215] Any element, action or instruction used herein should not be interpreted as key or necessary unless clearly stated. In addition, as used herein, the article "one" is intended to include one or more items, and can be used interchangeably with "one or more". In addition, as used herein, the article "said" is intended to include one or more items connected to the article "said", and can be used interchangeably with "said one or more". In addition, as used herein, the terms "set" and "group" are intended to include one or more items, and can be used interchangeably with "one or more". If you only want to refer to an item, the phrase "only one" or similar terms will be used. Moreover, as used herein, the terms "have", "have" etc. are intended to be open terms, which do not limit the elements they modify (for example, "elements with" A can also have B). In addition, the phrase "based on" is intended to mean "at least partially based on", unless explicitly stated otherwise. In addition, as used herein, the term "or" is intended to be open when used in a series, and can be used interchangeably with "and / or", unless otherwise explicitly stated (for example, if used in combination with "any" or "only one").

Claims

1. A user equipment (UE) for wireless communication, the user equipment (UE) comprising: one or more memories; and one or more processors, the one or more processors being coupled to the one or more memories, the one or more processors being individually or collectively configured to cause the UE to: configuring a total transmit power for a physical uplink shared channel (PUSCH) communication based on a pre-decoder and a total power scaling factor, the total power scaling factor comprising a sum of a plurality of power scaling factors associated with a set of transmit ports of the UE, each transmit port in the set of transmit ports corresponding to a PA in a set of power amplifiers (PAs); and The PUSCH communication is transmitted to a network node based on the total transmit power.

2. The UE of claim 1, wherein a power scaling factor in the plurality of power scaling factors is based on a maximum output power associated with a corresponding PA in the set of PAs. 3 . The UE of claim 1 , wherein the total power scaling factor is limited to a value of 1 based on the sum of the multiple power scaling factors being greater than 1. 4 .

4. The UE according to claim 1, wherein the transmit port set includes eight transmit ports and the PA set includes eight PAs, and wherein the one or more processors are also configured individually or collectively to cause the UE to send capability information associated with a full power mode to the network node, the full power mode corresponding to an eight-port uplink transmit operation associated with the eight transmit ports, wherein at least two PAs in the PA set correspond to different amplification values. 5 . The UE of claim 4 , wherein the capability information does not include an indication of any power scaling factor of the plurality of power scaling factors.

6. The UE of claim 5, wherein based on the eight-port uplink transmission operation comprising a fully coherent transmission operation, the capability information does not include an indication of any power scaling factor of the plurality of power scaling factors. 7 . The UE of claim 4 , wherein the capability information indicates at least one power scaling factor among the plurality of power scaling factors.

8. The UE of claim 7, wherein the capability information indicates each power scaling factor of the plurality of power scaling factors.

9. The UE of claim 8, wherein the capability information indicates each power scaling factor of the plurality of power scaling factors based on that the eight-port uplink transmission operation comprises a non-coherent transmission operation.

10. The UE of claim 7, wherein a first subset of the eight transmit ports includes a first antenna group and a second subset of the eight transmit ports includes a second antenna group, and wherein the capability information indicates a first aggregation power scaling factor corresponding to the first antenna group and a second aggregation power scaling factor corresponding to the second antenna group.

11. The UE of claim 10, wherein the first antenna group comprises a first plurality of coherent transmit ports and the second antenna group comprises a second plurality of coherent transmit ports, and wherein transmit ports in the first plurality of coherent transmit ports are non-coherent with respect to transmit ports in the second plurality of coherent transmit ports.

12. The UE of claim 4, wherein the one or more processors are further configured, individually or collectively, to cause the UE to: A sounding reference signal (SRS) configuration is received from the network node based on the capability information.

13. A network node for wireless communication, the network node comprising: one or more memories; and one or more processors, the one or more processors being coupled to the one or more memories, the one or more processors being individually or collectively configured to cause the network node to: receiving a physical uplink shared channel (PUSCH) communication from a user equipment (UE) having a total transmit power based on a precoder and a total power scaling factor, the total power scaling factor comprising a sum of a plurality of power scaling factors associated with a set of transmit ports of the UE, each transmit port in the set of transmit ports corresponding to a PA in a set of power amplifiers (PAs); and A wireless communication task is performed based on receiving the PUSCH communication.

14. The network node of claim 13, wherein a power scaling factor in the plurality of power scaling factors is based on a maximum output power associated with a corresponding PA in the set of PAs.

15. The network node of claim 13, wherein the total power scaling factor is limited to a value of 1 based on the sum of the plurality of power scaling factors being greater than 1.

16. The network node of claim 13, wherein the transmit port set comprises eight transmit ports and the PA set comprises eight PAs, and wherein the one or more processors are further configured, individually or collectively, to cause the network node to receive capability information associated with a full power mode from the UE, the full power mode corresponding to an eight-port uplink transmit operation associated with the eight transmit ports, wherein at least two PAs in the PA set correspond to different amplification values.

17. The network node of claim 16, wherein the capability information does not include an indication of any power scaling factor of the plurality of power scaling factors.

18. The network node of claim 17, wherein based on the eight-port uplink transmit operation comprising a fully coherent transmit operation, the capability information does not include an indication of any power scaling factor of the plurality of power scaling factors.

19. The network node of claim 16, wherein the capability information indicates at least one power scaling factor of the plurality of power scaling factors.

20. The network node of claim 19, wherein the capability information indicates each power scaling factor of the plurality of power scaling factors.

21. The network node of claim 20, wherein the capability information indicates each power scaling factor of the plurality of power scaling factors based on the eight-port uplink transmit operation comprising a non-coherent transmit operation.

22. The network node of claim 19, wherein the first subset of the eight transmit ports comprises a first antenna group and the second subset of the eight transmit ports comprises a second antenna group, and wherein the capability information indicates a first aggregate power scaling factor corresponding to the first antenna group and a second aggregate power scaling factor corresponding to the second antenna group.

23. The network node of claim 22, wherein the first antenna group comprises a first plurality of coherent transmit ports and the second antenna group comprises a second plurality of coherent transmit ports, and wherein transmit ports in the first plurality of coherent transmit ports are non-coherent with respect to transmit ports in the second plurality of coherent transmit ports.

24. The network node of claim 16, wherein the one or more processors are further configured, individually or collectively, to cause the network node to: A sounding reference signal (SRS) configuration is sent to the UE based on the capability information.

25. A method of wireless communication performed by an apparatus at a user equipment (UE), the method comprising: configuring a total transmit power for a physical uplink shared channel (PUSCH) communication based on a pre-decoder and a total power scaling factor, the total power scaling factor comprising a sum of a plurality of power scaling factors associated with a set of transmit ports of the UE, each transmit port in the set of transmit ports corresponding to a PA in a set of power amplifiers (PAs); and The PUSCH communication is transmitted to a network node based on the total transmit power.

26. The method of claim 25, wherein a power scaling factor in the plurality of power scaling factors is based on a maximum output power associated with a corresponding PA in the set of PAs.

27. The method of claim 25, wherein the set of transmit ports includes eight transmit ports and the set of PAs includes eight PAs, the method further comprising: Capability information associated with a full power mode corresponding to eight-port uplink transmit operation associated with the eight transmit ports is transmitted to the network node, wherein at least two PAs in the set of PAs correspond to different amplification values.

28. A method of wireless communication performed by an apparatus at a network node, the method comprising: receiving a physical uplink shared channel (PUSCH) communication from a user equipment (UE) having a total transmit power based on a precoder and a total power scaling factor, the total power scaling factor comprising a sum of a plurality of power scaling factors associated with a set of transmit ports of the UE, each transmit port in the set of transmit ports corresponding to a PA in a set of power amplifiers (PAs); and A wireless communication task is performed based on receiving the PUSCH communication.

29. The method of claim 28, wherein a power scaling factor in the plurality of power scaling factors is based on a maximum output power associated with a corresponding PA in the set of PAs.

30. The method of claim 28, wherein the set of transmit ports includes eight transmit ports and the set of PAs includes eight PAs, the method further comprising: Capability information associated with a full power mode is received from the UE, the full power mode corresponding to eight-port uplink transmit operation associated with the eight transmit ports, wherein at least two PAs in the set of PAs correspond to different amplification values.

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