User equipment configuration for dynamic base station antenna port adaptation

Abstract

A user equipment (UE) of a wireless communication network is configured to operate with a wireless communication system radio access network (RAN) using dynamic base station antenna port adaptation, and can be configured to operate in one or more of settings for: i) a plurality of active transmit configuration indicator (TCI) states; ii) a pool of control resource set (CORESET) indices having a plurality of (CORESET) indices; iii) a channel state information (CSI) enhancement, the channel state information (CSI) enhancement comprising at least one of a channel measurement source (CMR) pair and a CSI reporting enhancement for an incoherent joint transmission (NCJT) measurement hypothesis; iv) a codebook for calculating the CSI for the simplified base station antenna configuration. The UE is configured to operate under one or more of the settings having at least one restriction, and then under the configured settings.

Description

Technical Field

[0001] The present disclosure relates generally to communication systems and, more particularly, in some examples, to configuring user equipment (UE) of a wireless network to operate with a base station that employs dynamic base station antenna port adaptation. Background Art

[0002] Wireless communication systems are widely deployed to provide various telecommunication services, such as telephone, 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. 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, and time division synchronous code division multiple access (TD-SCDMA) systems. These multiple access technologies have been adopted in various telecommunication standards to provide a common protocol that enables different wireless devices to communicate at a city, country, region, and even global level. An example telecommunication standard is 5G New Radio (NR). 5G NR is part of the continued mobile broadband evolution promulgated by the Third Generation Partnership Project (3GPP) to meet new requirements associated with latency, reliability, security, scalability (e.g., with the Internet of Things (IoT)) and other requirements. 5G NR includes services associated with enhanced mobile broadband (eMBB), massive machine-type communications (mMTC), and ultra-reliable low-latency communications (URLLC). Certain aspects of 5G NR may be based on the 4G Long Term Evolution (LTE) standard. Further improvements to 5G NR technology are needed. In addition, these improvements may also be applicable to other multiple access technologies and telecommunication standards that adopt these technologies. Summary of the invention

[0003] The following presents the summary of one or more aspects in order to provide a basic understanding of these aspects. This review is not an exhaustive overview of all conceived aspects, and is neither intended to identify the key or decisive elements of all aspects, nor to define the scope of any or all aspects. Its only purpose is to present some concepts of one or more aspects in a simplified form as a prelude to a more detailed description presented later.

[0004] The technology disclosed herein can be applied to the interaction between dynamic antenna port adaptation and multiple transmit / receive point (mTRP) operation in response to the power management strategy. In some examples of the technology disclosed herein, a user equipment (UE) of a wireless communication network is configured to operate with a wireless communication system radio access network (RAN) using dynamic base station antenna port adaptation, and can be configured to operate under one or more of the following settings: i) multiple active transmission configuration indicator (TCI) states; ii) a CORESET index pool with multiple control resource set (CORESET) indexes; iii) channel state information (CSI) enhancement, which includes at least one of a channel measurement source (CMR) pair and a CSI report enhancement for a non-coherent joint transmission (NCJT) measurement hypothesis; iv) a codebook for calculating CSI for a simplified base station antenna configuration. In such examples, the UE is configured to operate under one or more of the settings with at least one restriction, and then operate under the settings of the configuration.

[0005] To achieve the foregoing and related ends, one or more aspects include the features fully described below and particularly pointed out in the claims. The following description and the accompanying drawings set forth in detail some illustrative features of one or more aspects. However, these features are merely indicative of some of the various ways in which the principles of the various aspects may be employed, and this specification is intended to include all such aspects and their equivalents. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] Figure 1 is a diagram illustrating an example of a wireless communication system and an access network.

[0007] Figure 2 is a diagram illustrating an exemplary decomposed base station 200 architecture.

[0008] Figure 3A , Figure 3B , Figure 3C and Figure 3D 2 are diagrams illustrating examples of a first 5G / NR frame, a DL channel within a 5G / NR subframe, a second 5G / NR frame, and a UL channel within a 5G / NR subframe, respectively.

[0009] Figure 4 is a diagram illustrating a base station and a user equipment (UE) in an access network according to an example of the technology disclosed herein.

[0010] Figure 5 is a flow chart illustrating a method of wireless communication according to an example of the technology disclosed herein.

[0011] Figure 6Illustrated is the configuration of a UE for communicating with more than one transmit / receive point (TRP) according to an example of the techniques disclosed herein.

[0012] Figure 7 is a block diagram of an example UE according to the techniques disclosed herein. DETAILED DESCRIPTION

[0013] The specific embodiments described below in conjunction with the accompanying drawings are intended as descriptions of various configurations and are not intended to represent the only configurations with which the concepts described herein can be practiced. In order to provide a thorough understanding of the various concepts, the specific embodiments include specific details. However, it is obvious to those skilled in the art that these concepts can be practiced without these specific details. In some instances, in order to avoid blurring such concepts, known structures and components are shown in block diagram form.

[0014] Some studies have estimated that the energy cost of operating a 5G NR wireless communication network amounts to 23% of the total cost of running the network. Other studies have noted that most of the energy used in operating a 5G NR wireless communication network is consumed by the Radio Access Network (RAN), which is the communication infrastructure including base stations that connect UEs to the core network for access to the Internet and telephone networks, for example. As with all energy consuming technologies, energy saving features are a factor in the adoption and expansion of 5G NR and any similar successor networks.

[0015] One of the important factors driving RAN power consumption in 5G NR is the use of active antenna units (AAUs) that employ technologies such as beamforming, multiple transmit receive points (mTRPs), and massive multiple-input multiple-output (MIMO) active antennas. AAUs can result in a two- to four-fold increase in power consumption per cell in the RAN compared to 4G networks.

[0016] Discussions around Release 18 of the 3GPP standards covering mobile communications have highlighted the need to adapt the framework of the power consumption modeling and evaluation method for UEs in 3GGP Technical Report TR38.840, including the relative energy consumption of downlink (DL) and uplink (UL), to base stations. This includes considering factors such as power amplifier (PA) performance, the number of transmit / receive units (TxRUs), base station load, sleep states and associated transition times, and one or more benchmark parameters / configurations. The evaluation method is expected to focus on system-level network energy consumption and energy saving gains, as well as evaluating / balancing the impact on network and user performance (e.g., spectral efficiency, capacity, user perceived throughput (UPT), latency, handover performance, call drop rate, initial access performance, service level agreement (SLA) guarantee-related key performance indicators (KPIs)), energy efficiency, and UE power consumption.

[0017] Massive MIMO at the base station employs multiple co-located panels including multiple antenna ports. Each panel is equipped with a large number of power amplifiers (PA) and antenna subsystems, which consume a lot of power. To manage power consumption, when the cell load is low, the base station can dynamically shut down some panels or sub-panels or some antenna ports to achieve energy efficiency. This method can be described as "dynamic antenna port adaptation".

[0018] The technology disclosed herein can be applied to the interaction between dynamic antenna port adaptation and mTRP operation in response to the power management strategy. In some examples of the technology disclosed herein, a user equipment (UE) of a wireless communication network is configured to operate with a RAN using dynamic base station antenna port adaptation, and can be configured to operate under one or more of the following settings: i) multiple active transmission configuration indicator (TCI) states; ii) a CORESET index pool with multiple control resource set (CORESET) indexes; iii) channel state information (CSI) enhancement, which includes at least one of a channel measurement source (CMR) pair and a CSI report enhancement for a non-coherent joint transmission (NCJT) measurement hypothesis; iv) a codebook for calculating CSI for a simplified base station antenna configuration. In such examples, the UE is configured to operate under one or more of the settings with at least one restriction, and then operates under the settings of the configuration.

[0019] To achieve the foregoing and related ends, one or more aspects include the features fully described below and particularly pointed out in the claims. The following description and the accompanying drawings set forth in detail some illustrative features of one or more aspects. However, these features are indicative of only some of the various ways in which the principles of the various aspects may be employed, and this description is intended to include all such aspects and their equivalents.

[0020] Several aspects of the telecommunications system will now be presented with reference to various devices and methods. These devices and methods will be described in the detailed description below and illustrated in the accompanying drawings by various blocks, components, circuits, processes, algorithms, etc. (collectively referred to as "elements"). These elements can be implemented using electronic hardware, computer software, or any combination thereof. Whether these elements are implemented as hardware or software depends on the specific application and the design constraints imposed on the entire system. As an example, an element, or any part of an element, or any combination of elements can be implemented as a "processing system", which includes one or more processors. Examples of processors include microprocessors, microcontrollers, graphics processing units (GPUs), central processing units (CPUs), application processors, digital signal processors (DSPs), reduced instruction set computing (RISC) processors, systems on chips (SoCs), baseband processors, field programmable gate arrays (FPGAs), programmable logic devices (PLDs), state machines, gate logic pieces, discrete hardware circuits, and other suitable hardware configured to perform various functionalities described throughout this disclosure. One or more processors in a processing system can execute software. Software shall be construed broadly to mean instructions, instruction sets, code, code segments, program code, programs, subroutines, software components, applications, software applications, software packages, routines, subroutines, objects, executables, threads of execution, procedures, functions, etc., whether referred to as software, firmware, middleware, microcode, hardware description language, or otherwise.

[0021] Therefore, in one or more example embodiments, the described functions can be implemented with hardware, software or any combination thereof. If implemented with software, the functions can be stored or encoded on a computer-readable medium as one or more instructions or codes. Computer-readable media include computer storage media. Storage media can be any available medium that can be accessed by a computer. By way of example and not limitation, such computer-readable media can include random access memory (RAM), read-only memory (ROM), electrically erasable programmable ROM (EEPROM), optical disk storage device, magnetic disk storage device, other magnetic storage devices, a combination of computer-readable media of the above type, or any other medium that can be used to store computer executable code in the form of instructions or data structures that can be accessed by a computer.

[0022] Figure 11 is a diagram illustrating an example of a wireless communication system and an access network 100. The wireless communication system (which is also referred to as a wireless wide area network (WWAN)) includes a base station 102, a UE 104, an evolved packet core (EPC) 160, and another core network 190 (e.g., a 5G core (5GC)). The base station 102 may include a macro cell (a high-power cellular base station) and / or a small cell (a low-power cellular base station). The macro cell includes a base station. The small cell includes a femto cell, a pico cell, and a micro cell. The base station 102 configured for 4G LTE (collectively referred to as an evolved universal mobile telecommunications system (UMTS) terrestrial radio access network (E-UTRAN)) can be connected to the EPC 160 via a first backhaul link 132 (e.g., an S1 interface). The base station 102 configured for 5G NR (collectively referred to as the next generation RAN (NG-RAN)) can be connected to the core network 190 via a second backhaul link 186. Among other functions, the base station 102 may perform one or more of the following functions: delivery of user data, radio channel encryption and decryption, integrity protection, header compression, mobility control functions (e.g., handover, dual connectivity), inter-cell interference coordination, connection setup and release, load balancing, distribution of non-access stratum (NAS) messages, NAS node selection, synchronization, radio access network (RAN) sharing, multimedia broadcast multicast service (MBMS), subscriber and equipment tracking, RAN information management (RIM), paging, positioning, and delivery of warning messages. The base stations 102 may communicate directly or indirectly with each other (e.g., through the EPC 160 or the core network 190) via a third backhaul link 134 (e.g., an X2 interface). The first backhaul link 132, the second backhaul link 186, and the third backhaul link 134 may be wired or wireless.

[0023] Base station 102 may communicate wirelessly with UE 104. Each of base stations 102 may provide communication coverage for a corresponding geographic coverage area 110. There may be overlapping geographic coverage areas 110. For example, a small cell 102′ may have a coverage area 110′ that overlaps with the coverage area 110 of one or more macro base stations 102. A network that includes both small cells and macro cells may be referred to as a heterogeneous network. A heterogeneous network may also include a home evolved Node B (eNB) (HeNB), which may provide services to a restricted group referred to as a closed subscriber group (CSG). A communication link 120 between base station 102 and UE 104 may include an uplink (UL) (also referred to as a reverse link) transmission from UE 104 to base station 102 and / or a downlink (DL) (also referred to as a forward link) transmission from base station 102 to UE 104. The communication link 120 may use multiple-input multiple-output (MIMO) antenna technology, including spatial multiplexing, beamforming, and / or transmit diversity. In some examples of the technology disclosed herein, both DL and UL between the base station and the UE use the same multi-beam set to send / receive physical channels. For example, a given beam set can carry multiple copies of a physical downlink shared channel (PDSCH) on the DL and can carry multiple copies of multiple physical uplink control channels (PUCCH) on the UL.

[0024] The communication link may be through one or more carriers. For each carrier allocated in a carrier aggregation of up to YxMHz (x component carriers) for transmission in each direction, the base station 102 / UE 104 may use a spectrum of up to YMHz (e.g., 5MHz, 10MHz, 15MHz, 20MHz, 100MHz, 400MHz, etc.) bandwidth. The carriers may be adjacent to each other or may not be adjacent to each other. The allocation of carriers may be asymmetric with respect to DL and UL (e.g., more or fewer carriers may be allocated for DL ​​compared to UL). The component carrier may include a primary component carrier and one or more secondary component carriers. The primary component carrier may be referred to as a primary cell (PCell) and the secondary component carrier may be referred to as a secondary cell (SCell).

[0025] Some UEs 104 may communicate with each other using a device-to-device (D2D) communication link 158. The D2D communication link 158 may use DL / UL WWAN spectrum. The D2D communication link 158 may use one or more sidelink channels, such as a physical sidelink broadcast channel (PSBCH), a physical sidelink discovery channel (PSDCH), a physical sidelink shared channel (PSSCH), and a physical sidelink control channel (PSCCH). D2D communication may be performed through various wireless D2D communication systems such as, for example, FlashLinQ, WiMedia, Bluetooth, ZigBee, Wi-Fi based on the Institute of Electrical and Electronics Engineers (IEEE) 802.11 standard, LTE, or NR.

[0026] The wireless communication system may also include a Wi-Fi access point (AP) that communicates with a Wi-Fi station (STA) 152 via a communication link 154 in the 5 GHz unlicensed spectrum. When communicating in the unlicensed spectrum, the STA 152 / AP may perform a clear channel assessment (CCA) before communicating to determine whether the channel is available. The small cell 102′ may operate in a licensed and / or unlicensed spectrum. When operating in an unlicensed spectrum, the small cell 102′ may employ NR and use the same 5 GHz unlicensed spectrum as used by the Wi-Fi AP. The small cell 102′ employing NR in the unlicensed spectrum may improve the coverage of the access network and / or increase the capacity of the access network.

[0027] Base station 102, whether a small cell 102' or a large cell (e.g., a macro base station), may include and / or be referred to as an eNB, a gNodeB (gNB), or another type of base station. Some base stations, such as gNB 180, may operate in one or more frequency bands within the electromagnetic spectrum. Base station 180 and UE 104 may each include multiple antennas, such as antenna elements, antenna panels, and / or antenna arrays, to facilitate beamforming.

[0028] The electromagnetic spectrum is typically subdivided into various categories, bands, channels, etc. based on frequency / wavelength. In 5GNR, 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). Frequencies between FR1 and FR2 are typically referred to as mid-band frequencies. Although a portion of FR1 is greater than 6 GHz, FR1 is typically (interchangeably) referred to as the "below 6 GHz" band in various documents and articles. Similar naming issues sometimes arise with FR2, which is typically (interchangeably) referred to as the "millimeter wave" (mmW) band in various documents and articles, although it is different from the extremely high frequency (EHF) band (30 GHz to 300 GHz) identified as the "millimeter wave" (mmW) band by the International Telecommunication Union (ITU).

[0029] In view of the above aspects, unless otherwise specifically stated, it should be understood that if the term "sub-6 GHz" or the like is used herein, it can be broadly referred to as a frequency that can be less than 6 GHz, can be within FR1, or can 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, it can be broadly referred to as a frequency that can include mid-band frequencies, can be within FR2, or can be within the EHF band. Communications using mmW radio frequency bands have extremely high path loss and short range. The mmW base station 180 can utilize beamforming with the UE 104 / 184 to use beams 182 to compensate for the path loss and short range.

[0030] The base station 180 may transmit beamformed signals to the UE 104 / 184 in one or more transmit directions 182′. The UE 104 / 184 may receive beamformed signals from the base station 180 in one or more receive directions 182″. The UE 104 / 184 may also transmit beamformed signals to the base station 180 in one or more transmit directions. The base station 180 may receive beamformed signals from the UE 104 in one or more receive directions. The base station 180 / UE 104 / 184 may perform beam training to determine the best receive direction and transmit direction for each of the base stations 180 / UE 104 / 184. The transmit direction and receive direction of the base station 180 may be the same or different. The transmit direction and receive direction for the UE 104 / 184 may be the same or different.

[0031] The technology disclosed herein can be applied to the interaction between dynamic antenna port adaptation and mTRP operation at the base station 180 in response to the above-mentioned power management target. In some examples of the technology disclosed herein, a UE (such as UE 184) is configured to operate with a base station 180 using dynamic base station antenna port adaptation. UE 184 may also be configured to operate under one or more of the settings related to mTRP for the following items: i) multiple active transmission configuration indicator (TCI) states; ii) a CORESET index pool with multiple control resource sets (CORESET) indexes; iii) channel state information (CSI) enhancement, which includes at least one of a channel measurement source (CMR) pair and a CSI report enhancement for a non-coherent joint transmission (NCJT) measurement hypothesis; iv) a codebook for calculating CSI for a simplified base station 180 antenna configuration. In such examples, UE 184 is configured to operate under one or more of the settings with at least one restriction, and then operate under the settings of the configuration.

[0032] The EPC 160 may include a mobility management entity (MME) 162, other MMEs 164, a serving gateway 166, a multimedia broadcast multicast service (MBMS) gateway 168, a broadcast multicast service center (BM-SC) 170, and a packet data network (PDN) gateway 172. The MME 162 may communicate with a home subscriber server (HSS) 174. The MME 162 is a control node that handles signaling between the UE 104 and the EPC 160. Typically, the MME 162 provides bearer and connection management. All user Internet Protocol (IP) packets are transmitted through the serving gateway 166, which itself is connected to the PDN gateway 172. The PDN gateway 172 provides UE IP address allocation and other functions. The PDN gateway 172 and the BM-SC 170 are connected to IP services 176. The IP services 176 may include the Internet, an intranet, an IP multimedia subsystem (IMS), a packet switched (PS) streaming service, and / or other IP services. The BM-SC 170 may provide functionality for MBMS user service configuration and delivery. The BM-SC 170 may serve as an entry point for content provider MBMS delivery, may be used to authorize and initiate MBMS bearer services in a public land mobile network (PLMN), and may be used to schedule MBMS delivery. The MBMS gateway 168 may be used to distribute MBMS traffic to base stations 102 belonging to a multicast broadcast single frequency network (MBSFN) area that broadcasts a specific service, and may be responsible for session management (start / stop) and for collecting eMBMS-related charging information.

[0033] The core network 190 may include an access and mobility management function (AMF) 192, other AMFs 193, a session management function (SMF) 194, and a user plane function (UPF) 195. The AMF 192 may communicate with a unified data management (UDM) 196. The AMF 192 is a control node that handles signaling between the UE 104 and the core network 190. In general, the AMF 192 provides quality of service (QoS) flows and session management. All user Internet Protocol (IP) packets are passed through the UPF 195. The UPF 195 provides UE IP address allocation and other functions. The UPF 195 is connected to an IP service 197. The IP service 197 may include the Internet, an intranet, an IP multimedia subsystem (IMS), a PS streaming service, and / or other IP services.

[0034] Base stations may include and / or be referred to as gNBs, Node Bs, eNBs, access points, base transceivers, radio base stations, radio transceivers, transceiver functions, basic service sets (BSSs), extended service sets (ESSs), transmit receive points (TRPs), or some other suitable terminology. Base stations 102 provide access points to EPC 160 or core network 190 for UEs 104. Examples of UEs 104 include cellular phones, smart phones, session initiation protocol (SIP) phones, laptops, personal digital assistants (PDAs), satellite radios, global positioning systems, multimedia devices, video devices, digital audio players (e.g., MP3 players), cameras, game consoles, tablets, smart devices, wearable devices, vehicles, electric meters, gas pumps, large or small kitchen appliances, healthcare devices, implants, sensors / actuators, displays, or any other similarly functional devices. Some of the UEs 104 may be referred to as IoT devices (e.g., parking meters, gas pumps, toasters, vehicles, heart monitors, etc.). UE 104 may also be referred to as a station, a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless device, a wireless communication device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, a user agent, a mobile client, a client, or some other suitable terminology.

[0035] Although the following description may focus on 5G NR, the concepts described herein may be applicable to other similar areas such as LTE, LTE-A, CDMA, GSM, and other wireless technologies.

[0036] The deployment of a communication system (such as a 5G New Radio (NR) system) can be arranged with various components or constituent parts 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 radio access network (RAN) node, a core network node, a network element or a network equipment (such as a base station (BS), or one or more units (or one or more components) that perform base station functionality can be implemented in an aggregated architecture or a decomposed architecture. For example, a BS (such as a Node B (NB), an evolved NB (eNB), an NR BS, a 5G NB, an access point (AP), a transmit receive point (TRP) or a cell, etc.) can be implemented as an aggregated base station (also referred to as an independent BS or a monolithic BS) or a decomposed base station.

[0037] A converged base station may be configured to utilize a radio protocol stack physically or logically integrated within a single RAN node. A decomposed base station may be configured to utilize a protocol stack physically or logically distributed between two or more units, such as one or more central or centralized units (CUs), one or more distributed units (DUs), or one or more radio units (RUs). In some aspects, a CU may be implemented within a RAN node, and one or more DUs may be co-located with the CU, or alternatively, may be geographically or virtually distributed in one or more other RAN 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, i.e., a virtual central unit (VCU), a virtual distributed unit (VDU), or a virtual radio unit (VRU).

[0038] Base station type operations or network designs may take into account the aggregated nature of base station functionality. For example, a disaggregated base station may be used in an integrated access backhaul (IAB) network, an open radio access network (O-RAN (network configurations such as those initiated by the O-RAN Alliance)), or a virtualized radio access network (vRAN, also known as a cloud radio access network (C-RAN)). Decomposition may include distributing functionality across two or more units at various physical locations, as well as virtually distributing functionality of at least one unit, which may enable flexibility in network design. Individual units of a disaggregated base station or disaggregated RAN architecture may be configured for wired or wireless communication with at least one other unit.

[0039] Figure 2A diagram illustrating an example disaggregated base station 200 architecture is shown. The disaggregated base station 200 architecture may include one or more central units (CUs) 210 that may communicate directly with a core network 220 via a backhaul link, or indirectly with the core network 220 through one or more disaggregated base station units, such as a near real-time (near-RT) RAN intelligent controller (RIC) 225 via an E2 link, or a non-real-time (non-RT) RIC 215 associated with a service management and orchestration (SMO) framework 205, or both. The CU 210 may communicate with one or more distributed units (DUs) 230 via respective midhaul links, such as an F1 interface. The DU 230 may communicate with one or more radio units (RUs) 240 via respective fronthaul links. The RU 240 may communicate with respective UEs 202 via one or more radio frequency (RF) access links. In some implementations, a UE 202 may be served simultaneously by multiple RUs 240.

[0040] Each of the units (i.e., CU 210, DU 230, RU 240, and near-RT RIC 225, non-RT RIC 215, and SMO framework 205) may include or be coupled to one or more interfaces configured to receive or send signals, data, or information (collectively referred to as signals) via a wired or wireless transmission medium. Each of these units or an associated processor or controller that provides instructions to the communication interface of these units may be configured to communicate with one or more of the other units via a transmission medium. For example, these units may include a wired interface configured to receive or send signals to one or more of the other units via a wired transmission medium. Additionally, these units may include a wireless interface that may include a receiver, a transmitter, or a transceiver (such as a radio frequency (RF) transceiver) that is configured to receive or send signals, or both, to one or more of the other units on a wireless transmission medium.

[0041] In some aspects, CU 210 may host one or more high-level control functions. Such control functions may include radio resource control (RRC), packet data convergence protocol (PDCP), service data adaptation protocol (SDAP), etc. Each control function may be implemented using an interface that is configured to communicate signals with other control functions hosted by CU 210. CU 210 may be configured to handle user plane functionality (i.e., central unit-user plane (CU-UP)), control plane functionality (i.e., central unit-control plane (CU-CP)), or a combination thereof. In some specific implementations, CU 210 may be logically split into one or more CU-UP units and one or more CU-CP units. When implemented in an O-RAN configuration, the CU-UP unit may communicate bidirectionally with the CU-CP unit via an interface (such as an E1 interface). As needed, CU 210 may be implemented to communicate with DU 230 for network control and signaling.

[0042] DU 230 may correspond to a logical unit that includes one or more base station functions for controlling the operation of one or more RUs 240. In some aspects, DU 230 may host one or more of a radio link control (RLC) layer, a medium access control (MAC) layer, and one or more high physical (PHY) layers (such as modules for forward error correction (FEC) encoding and decoding, scrambling, modulation and demodulation, etc.) at least in part according to a functional split such as defined by the Third Generation Partnership Project (3GPP). In some aspects, DU 230 may also host one or more low PHY layers. Each layer (or module) may be implemented using an interface that is configured to communicate signals with other layers (and modules) hosted by DU 230 or with control functions hosted by CU 210.

[0043] The low-layer functionality may be implemented by one or more RUs 240. In some deployments, a RU 240 controlled by a DU 230 may correspond to a logical node that hosts RF processing functions or low PHY layer functions (such as performing Fast Fourier Transform (FFT), Inverse FFT (iFFT), digital beamforming, physical random access channel (PRACH) extraction and filtering, etc.), or both, based at least in part on a functional split (such as a lower layer functional split). In such an architecture, the RU 240 may be implemented to handle over-the-air (OTA) communications with one or more UEs 202. In some implementations, real-time and non-real-time aspects of control plane and user plane communications with the RU 240 may be controlled by the corresponding DU 230. In some scenarios, this configuration may enable the implementation of the DU 230 and the CU 210 in a cloud-based RAN architecture (such as a vRAN architecture).

[0044] The SMO framework 205 may be configured to support RAN deployment and provisioning of non-virtualized network elements and virtualized network elements. For non-virtualized network elements, the SMO framework 205 may be configured to support the deployment of dedicated physical resources for RAN coverage requirements, which may be managed via an operation and maintenance interface (such as an O1 interface). For virtualized network elements, the SMO framework 205 may be configured to interact with a cloud computing platform (such as an open cloud (O-Cloud) 290) to perform network element lifecycle management (such as to instantiate virtualized network elements) via a cloud computing platform interface (such as an O2 interface). Such virtualized network elements may include, but are not limited to, CU 210, DU 230, RU 240, and near-RT RIC 225. In some specific implementations, the SMO framework 205 may communicate with hardware aspects of the 4G RAN such as an open eNB (O-eNB) 211 via the O1 interface. Additionally, in some specific implementations, the SMO framework 205 may communicate directly with one or more RUs 240 via the O1 interface. The SMO framework 205 may also include a non-RT RIC 215 configured to support the functionality of the SMO framework 205 .

[0045] The non-RT RIC 215 may be configured to include logic functions that enable non-real-time control and optimization of RAN elements and resources, artificial intelligence / machine learning (AI / ML) workflows including model training and updating, or policy-based guidance of applications / features in the near-RT RIC 225. The non-RT RIC 215 may be coupled to or in communication with the near-RT RIC 225 (such as via an A1 interface). The near-RT RIC 225 may be configured to include logic functions that enable near-real-time control and optimization of RAN elements and resources via data collection and actions through an interface (such as via an E2 interface) that connects one or more CUs 210, one or more DUs 230, or both, and the O-eNB with the near-RT RIC 225.

[0046] In some implementations, in order to generate an AI / ML model to be deployed in the near-RT RIC 225, the non-RT RIC 215 may receive parameters or external enrichment information from an external server. Such information may be utilized by the near-RT RIC 225 and may be received from a non-network data source or from a network function at the SMO framework 205 or the non-RT RIC 215. In some examples, the non-RT RIC 215 or the near-RT RIC 225 may be configured to tune RAN behavior or performance. For example, the non-RT RIC 215 may monitor long-term trends and patterns of performance and employ AI / ML models to perform corrective actions through the SMO framework 205 (such as via reconfiguration of O1) or via the creation of RAN management policies (such as A1 policies).

[0047] Figure 3A FIG300 is a diagram illustrating an example of a first subframe within a 5G / NR frame structure. Figure 3B FIG330 is a diagram illustrating an example of DL channels within a 5G / NR subframe. Figure 3C 350 is a diagram illustrating an example of a second subframe within a 5G / NR frame structure. Figure 3D FIG380 is a diagram illustrating an example of an UL channel within a 5G / NR subframe. The 5G / NR frame structure may be frequency division duplex (FDD) (wherein, for a particular set of subcarriers (carrier system bandwidth), subframes within that subcarrier set are dedicated to either DL or UL), or may be time division duplex (TDD) (wherein, for a particular set of subcarriers (carrier system bandwidth), subframes within that subcarrier set are dedicated to both DL and UL). Figure 3A , Figure 3C In the example provided, it is assumed that the 5G / NR frame structure is TDD, where subframe 4 is configured with slot format 28 (mainly DL), where D is DL, U is UL, and X is used flexibly between DL / UL, and subframe 3 is configured with slot format 34 (mostly UL). Although subframes 3 and 4 are shown as having slot formats 34 and 28, respectively, any particular subframe may be configured with any of the various available slot formats 0 to 61. Slot formats 0 and 1 are both DL and both UL, respectively. Other slot formats 2-61 include a mixture of DL, UL and flexible symbols. The slot format is configured for the UE by a received slot format indicator (SFI) (dynamically configured by DL control information (DCI) or semi-statically / statically configured by radio resource control (RRC) signaling). Note that the following description also applies to the 5G / NR frame structure for TDD.

[0048] Other wireless communication technologies may have different frame structures and / or different channels. A frame (10ms) may be divided into 10 subframes of equal size (1ms). Each subframe may include one or more time slots. A subframe may also include a microslot, which may include 7, 4, or 2 symbols. Each time slot may include 7 or 14 symbols, depending on the time slot configuration. For time slot configuration 0, each time slot may include 14 symbols, and for time slot configuration 1, each time slot may include 7 symbols. The symbols on the DL may be cyclic prefix (CP) OFDM (CP-OFDM) symbols. The symbols on the UL may be CP-OFDM symbols (for high throughput scenarios) or discrete Fourier transform (DFT) spread OFDM (DFT-s-OFDM) symbols (also known as single carrier frequency division multiple access (SC-FDMA) symbols) (for power-limited scenarios; limited to single stream transmission). The number of time slots in a subframe is based on the time slot configuration and parameter set (numerology). For slot configuration 0, different parameter sets μ 0 to 5 allow 1, 2, 4, 8, 16 and 32 slots per subframe, respectively. For slot configuration 1, different parameter sets 0 to 2 allow 2, 4 and 8 slots per subframe, respectively. Accordingly, for slot configuration 0 and parameter set μ, there are 14 symbols per slot and 2μ slots per subframe. The subcarrier spacing and symbol length / duration are functions of the parameter set. The subcarrier spacing can be equal to 2 μ *15kHz, where μ is parameter set 0 to 5. Therefore, the subcarrier spacing for parameter set μ=0 is 15kHz, and the subcarrier spacing for parameter set μ=5 is 480kHz. The symbol length / duration is inversely related to the subcarrier spacing. FIG. 3A to FIG. 3D An example is provided for slot configuration 0 with 14 symbols per slot and parameter set μ=2 with 4 slots per subframe. The slot duration is 0.25 ms, the subcarrier spacing is 60 kHz, and the symbol duration is approximately 16.67 μs.

[0049] A resource grid may be used to represent a frame structure. Each slot includes a resource block (RB) (also referred to as a physical RB (PRB)) extending over 12 consecutive subcarriers. The resource grid is divided into a plurality of resource elements (REs). The number of bits carried by each RE depends on the modulation scheme.

[0050] like Figure 3AAs illustrated, some of the REs carry reference (pilot) signals (RS) for the UE. The RS may include a demodulation RS (DM-RS) for channel estimation at the UE (indicated as Rx for a particular configuration, where 100x is the port number, but other DM-RS configurations are possible) and a channel state information reference signal (CSI-RS). The RS may also include a beam measurement RS (BRS), a beam refinement RS (BRRS), and a phase tracking RS (PT-RS). Some examples of the technology disclosed herein use the DM-RS of the physical downlink control channel (PDCCH) to assist in channel estimation of the physical downlink shared channel (PDSCH) (and the final demodulation of the user data portion).

[0051] Figure 3B Examples of various DL channels within a subframe of a frame are illustrated. The physical downlink control channel (PDCCH) carries DCI within one or more control channel elements (CCEs), each CCE including nine RE groups (REGs), each REG including four consecutive REs in an OFDM symbol. The primary synchronization signal (PSS) may be within symbol 2 of a specific subframe of the frame. The PSS is used by UE 104 to determine the subframe / symbol timing and the physical layer identity. The secondary synchronization signal (SSS) may be within symbol 4 of a specific subframe of the frame. The SSS is used by the UE to determine the physical layer cell identity group number and the radio frame timing. Based on the physical layer identity and the physical layer cell identity group number, the UE can determine the physical cell identifier (PCI). Based on the PCI, the UE can determine the location of the aforementioned DM-RS. The physical broadcast channel (PBCH) carrying the master information block (MIB) can be logically grouped with the PSS and SSS to form a synchronization signal (SS) / PBCH block. The MIB provides the system frame number (SFN) and the number of RBs in the system bandwidth. The Physical Downlink Shared Channel (PDSCH) carries user data, broadcast system information such as System Information Blocks (SIBs) not sent through the PBCH, and paging messages.

[0052] like Figure 3CAs illustrated, some of the REs carry DM-RS (indicated as R for a particular configuration, but other DM-RS configurations are possible) for channel estimation at the base station. The UE may send a DM-RS for a physical uplink control channel (PUCCH) and a DM-RS for a physical uplink shared channel (PUSCH). The PUSCH DM-RS may be sent in the first or first two symbols of the PUSCH. Depending on whether a short PUCCH or a long PUCCH is sent and depending on the specific PUCCH format used, the PUCCH DM-RS may be sent in different configurations. The UE may send a sounding reference signal (SRS). The SRS may be sent in the last symbol of a subframe. The SRS may have a comb structure, and the UE may send the SRS on one of the teeth of the comb. The SRS may be used by the base station for channel quality estimation to achieve frequency-dependent scheduling of the UL.

[0053] Figure 3D Examples of various UL channels within a subframe of a frame are illustrated. The PUCCH may be located at a position as indicated in one configuration. The PUCCH carries uplink control information (UCI), such as scheduling requests, channel quality indicator (CQI), precoding matrix indicator (PMI), rank indicator (RI), and hybrid automatic repeat request (HARQ) acknowledgement (ACK) / negative ACK (NACK) feedback. The PUSCH carries data and may additionally be used to carry a buffer status report (BSR), a power headroom report (PHR), and / or UCI.

[0054] Figure 44 is a block diagram of base station 410 communicating with UE 450 in an access network. In the DL, IP packets from EPC 160 may be provided to controller / processor 475. Controller / processor 475 implements layer 3 and layer 2 functionality. Layer 3 includes a radio resource control (RRC) layer, and layer 2 includes a service data adaptation protocol (SDAP) layer, a packet data convergence protocol (PDCP) layer, a radio link control (RLC) layer, and a medium access control (MAC) layer. The controller / processor 475 provides RRC layer functionality associated with broadcasting of system information (e.g., MIB, SIB), RRC connection control (e.g., RRC connection paging, RRC connection establishment, RRC connection modification, and RRC connection release), inter-radio access technology (RAT) mobility, and measurement configuration for UE measurement reporting; PDCP layer functionality associated with header compression / decompression, security (encryption, decryption, integrity protection, integrity verification), and handover support functions; RLC layer functionality associated with delivery of upper layer packet data units (PDUs), error correction through ARQ, concatenation, segmentation and reassembly of RLC service data units (SDUs), re-segmentation of RLC data PDUs, and reordering of RLC data PDUs; and MAC layer functionality associated with mapping between logical channels and transport channels, multiplexing of MAC SDUs onto transport blocks (TBs), demultiplexing of MAC SDUs from TBs, scheduling information reporting, error correction through HARQ, priority handling, and logical channel prioritization.

[0055] The transmit (TX) processor 416 and the receive (RX) processor 470 implement layer 1 functionality associated with various signal processing functions. Layer 1 (which includes the physical (PHY) layer) may include error detection on the transport channel, forward error correction (FEC) coding / decoding of the transport channel, interleaving, rate matching, mapping to the physical channel, modulation / demodulation of the physical channel, and MIMO antenna processing. The TX processor 416 handles the mapping to the signal constellation based on various modulation schemes (e.g., binary phase shift keying (BPSK), quadrature phase shift keying (QPSK), M-order phase shift keying (M-PSK), M-order quadrature amplitude modulation (M-QAM)). The decoded and modulated symbols can then be divided into parallel streams. Subsequently, each stream can be mapped to an OFDM subcarrier, multiplexed with a reference signal (e.g., a pilot) in the time domain and / or frequency domain, and then combined using an inverse fast Fourier transform (IFFT) to produce a physical channel carrying a time domain OFDM symbol stream. The OFDM stream is spatially pre-coded to generate multiple spatial streams. Channel estimates from a channel estimator 474 may be used to determine coding and modulation schemes, as well as for spatial processing. Channel estimates may be derived from reference signals and / or channel state feedback sent by the UE 450. Each spatial stream may then be provided to a different antenna 420 via a separate transmitter 418TX. Each transmitter 418TX may modulate a radio frequency (RF) carrier for transmission using a corresponding spatial stream.

[0056] At the UE 450, each receiver 454RX receives a signal through its corresponding antenna 452. Each receiver 454RX recovers the information modulated onto the RF carrier and provides the information to a receive (RX) processor 456. The TX processor 468 and the RX processor 456 implement layer 1 functionality associated with various signal processing functions. The RX processor 456 can perform spatial processing on the information to recover any spatial stream destined for the UE 450. If multiple spatial streams are destined for the UE 450, they can be combined into a single OFDM symbol stream by the RX processor 456. The RX processor 456 then converts the OFDM symbol stream from the time domain to the frequency domain using a fast Fourier transform (FFT). The frequency domain signal includes a separate OFDM symbol stream for each subcarrier of the OFDM signal. The symbols on each subcarrier and the reference signal are recovered and demodulated by determining the most likely signal constellation point sent by the base station 410. These soft decisions can be based on channel estimates calculated by the channel estimator 458. The soft decisions are then decoded and deinterleaved to recover the data and control signals originally sent on the physical channel by base station 410. The data and control signals are then provided to controller / processor 459, which implements layer 3 and layer 2 functionality.

[0057] The controller / processor 459 may be associated with a memory 460 that stores program codes and data. The memory 460 may be referred to as a computer readable medium. In the UL, the controller / processor 459 provides demultiplexing between transport and logical channels, packet reassembly, decryption, header decompression, and control signal processing to recover IP packets from the EPC 160. The controller / processor 459 is also responsible for error detection using an ACK and / or NACK protocol to support HARQ operations.

[0058] Similar to the functionality described in conjunction with DL transmissions performed by the base station 410, the controller / processor 459 provides RRC layer functionality associated with system information (e.g., MIB, SIB) acquisition, RRC connection, and measurement reporting; PDCP layer functionality associated with header compression / decompression and security (encryption, decryption, integrity protection, integrity verification); RLC layer functionality associated with transmission of upper layer PDUs, error correction through ARQ, concatenation, segmentation and reassembly of RLC SDUs, resegmentation of RLC data PDUs, and reordering of RLC data PDUs; and MAC layer functionality associated with mapping between logical channels and transport channels, multiplexing of MAC SDUs onto TBs, demultiplexing of MAC SDUs from TBs, scheduling information reporting, error correction through HARQ, priority handling, and logical channel prioritization.

[0059] The TX processor 468 may use channel estimates derived by the channel estimator 458 from a reference signal or feedback sent by the base station 410 to select appropriate coding and modulation schemes and to facilitate spatial processing. The spatial streams generated by the TX processor 468 may be provided to different antennas 452 via corresponding transmitters 454TX. Each transmitter 454TX may modulate an RF carrier with a corresponding spatial stream for transmission.

[0060] In some examples of the techniques disclosed herein, a UE, such as UE 450, is configured to operate with a base station 410 using dynamic base station antenna port adaptation. In some such examples, one or more of the RX processor 456, the channel estimator 458, the controller / processor 459, and the memory 460 store / execute instructions for the UE 450, which can be configured to operate in one or more of the settings for the following items: i) multiple active transmission configuration indicator (TCI) states; ii) a CORESET index pool with multiple control resource sets (CORESET) indices; iii) channel state information (CSI) enhancement, the channel state information (CSI) enhancement including at least one of a channel measurement source (CMR) pair and a CSI report enhancement for a non-coherent joint transmission (NCJT) measurement hypothesis; iv) a codebook for calculating CSI for a simplified base station 450 antenna configuration. In such examples, the UE 450 is configured to operate in one or more of the settings with at least one restriction, and then operates in the settings of the configuration.

[0061] UL transmissions are processed at the base station 410 in a manner similar to that described in conjunction with the receiver functionality at the UE 450. Each receiver 418RX receives a signal through its respective antenna 420. Each receiver 418RX recovers information modulated onto an RF carrier and provides the information to a RX processor 470.

[0062] The controller / processor 475 may be associated with a memory 476 that stores program codes and data. The memory 476 may be referred to as a computer-readable medium. In the UL, the controller / processor 475 provides demultiplexing between transport channels and logical channels, packet reassembly, decryption, header decompression, control signal processing to recover IP packets from the UE 450. The IP packets from the controller / processor 475 may be provided to the EPC 160. The controller / processor 475 is also responsible for error detection using ACK and / or NACK protocols to support HARQ operations. As described elsewhere herein, the interface between the UE 450 and the base station 410 may be referred to as a "Uu" interface 490.

[0063] refer to Figure 5, and with continued reference to the previous figures for context, a method 500 for wireless communication according to an example of the technology disclosed herein is illustrated. Such a method 500 may be used in the context of the interaction between dynamic antenna port adaptation and mTRP operation in response to the above-mentioned power management target. In such a method, a user equipment (UE) of a wireless communication network is configured to operate with a RAN using dynamic base station antenna port adaptation. The UE may also be configured to operate under one or more settings for the following items: i) multiple active transmission configuration indicator (TCI) states; ii) a CORESET index pool with multiple control resource set (CORESET) indexes; iii) channel state information (CSI) enhancement, the channel state information (CSI) enhancement including at least one of a channel measurement source (CMR) pair and a CSI report enhancement for a non-coherent joint transmission (NCJT) measurement assumption; iv) a codebook for calculating CSI for a simplified base station antenna configuration. In such a method, the UE is configured to operate under one or more settings in the settings with at least one restriction-box 510.

[0064] refer to Figure 7 , and with continued reference to the previous figures for context, there is shown an example of a Figure 4 Another representation of a UE 450 (such as UE 104a) for wireless communication. UE 450 includes a setting component 142, a controller / processor 459 and a memory 460, as described above in conjunction with Figure 4 The configuration component 142 includes a configuration component 142a. In some examples, the configuration component 142a configures the UE to operate under one or more of the settings having at least one restriction. Thus, the configuration component 142a may provide a component for configuring the UE to operate under one or more of the settings having at least one restriction.

[0065] refer to Figure 6 , and continuing to refer to the previous figures for context, a configuration 600 of a UE 184 for communicating with more than one TRP (TRP1 612 and TRP2 622) is illustrated. In a single DCI configuration 610, the UE 184 receives DL from TRP1 612 via PDSCH 615a and receives DL from TRP2 614 via PDSCH 615b based on a single DCI contained in PDCCH 613 for a single BWP of a single serving cell. The single DCI includes multiple TCI states, for example, a first TCI code point 616 to an eighth TCI code point 618.

[0066] In a multiple DCI configuration 620, UE 184 receives DL from TRP1 612 via PDSCH1 625a and receives DL from TRP2 614 via PDSCH2 625b based on separate DCIs in PDCCH1 623a and PDCCH2 623b, respectively. In a multiple DCI configuration, UE 184 is configured with a CORESET index pool with multiple control resource set (CORSET) indices (one for each PDCH).

[0067] In some examples, configuring UE 184 to operate in one or more of the settings with at least one restriction includes configuring UE 184 to disable multiple active TCI states and to disable a CORESET index pool with multiple CORESET indexes. In such examples, when UE 184 is configured with dynamic base station antenna port adaptation, UE 184 is not expected to be configured with two active TCI states (m-TRP with single DCI) or a CORESET index pool with two CORESET indexes (m-TRP with multiple DCIs).

[0068] In Release 17 of the 3GPP standard, the CSI framework for m-TRP allows the UE to report CSI associated with the non-coherent joint transmission (NCJT) measurement assumption. Under such a framework, the resource set used for CSI reporting is divided into two resource groups. The resources in the set have the same codebook configuration. A set of N non-zero power resource pairs are allocated, each pair supporting measurements using the NCJT assumption. The resource pair may include a resource from one of the resource groups (e.g., resource group "0") and a resource from another resource group (e.g., resource group "1"). The number N can be as high as 2.

[0069] There are two options for CSI reporting associated with the m-TRP panel NCJT measurement hypothesis configured by a single CSI reporting setting. In Option 1, the UE may be configured to report X CSIs associated with a single TRP measurement hypothesis and one CSI associated with the NCJT measurement hypothesis. For X={0, 1, 2}, if X=2, the two CSIs are associated with two different single TRP measurement hypotheses with channel measurement resources (CMRs) from different CMR groups. For URs supporting Option 1, support for X={1, 2} is optional for the UE. Under Option 2, the UE may be configured to report one CSI associated with the best measurement hypothesis among the NCJT measurement hypothesis and the single TRP measurement hypothesis.

[0070] In some examples, configuring UE 184 to operate in one or more of the settings having at least one restriction includes: configuring the UE to operate in any of a plurality of active TCI states or a CORSET index pool having a plurality of CORESET indexes; and disabling resource pairs for NCJT measurement assumptions, e.g., N=0.

[0071] A UE configured to operate under dynamic base station antenna port adaptation may use supplemental CSI (S-CSI) associated with a simplified antenna configuration. The S-CSI is derived from the resources configured for the base station antenna configuration. The use of S-CSI imposes restrictions on the rules of the CSI-RS resources and codebooks corresponding to the simplified antenna configuration. For example, while the CSI report configuration for a full-antenna configuration base station may have a 32-port set of CSI-RS resources allocated to it and a (N1, N2)=(4, 4) codebook configuration, the resources and codebook configuration for a simplified base station antenna port configuration may be any of the following: a 4-port set of CSI-RS resources with a (N1, N2)=(2, 1) codebook configuration, an 8-port set of CSI-RS resources with a (N1, N2)=(2, 2) codebook configuration, an 8-port set of CSI-RS resources with a (N1, N2)=(4, 1) codebook configuration, and a 16-port set of CSI-RS resources with a (N1, N2)=(4, 2) codebook configuration.

[0072] In some examples of the techniques disclosed herein, configuring the UE to operate under one or more of the settings with at least one restriction includes configuring the UE to operate under CSI enhancement with a common single simplified codebook for a single measurement hypothesis and an NCJT measurement hypothesis. In some such examples, configuring the UE to operate under one or more of the settings with at least one restriction also includes configuring the UE to report a codebook index for deriving an NCJT CSI report.

[0073] For example, if the configured CSI report has a codebook associated with (N1, N2) = (4, 4) (i.e., 32 antenna ports) and a simplified codebook associated with (N1, N2) = (2, 2), the simplified codebook is used to calculate the CSI for the sTRP assumption and the NCJT assumption. This means that there are no different simplified antenna configurations at the TRP. In addition, when the UE reports a CSI associated with the NCJT measurement assumption, the UE also reports the codebook index used to derive the NCJT CSI.

[0074] In some examples of the techniques disclosed herein, configuring the UE to operate under one or more of the settings having at least one restriction includes configuring the UE to operate under CSI enhancement with multiple codebook pairs for deriving NCJT CSI. Multiple codebook pairs are particularly useful when different simplified antenna configurations at the TRP are allowed. For example, when the UE reports a CSI associated with an NCJT measurement hypothesis, the UE should report a codebook pair index for deriving the NCJT CSI. In some such examples, configuring the UE to operate under one or more of the settings having at least one restriction includes configuring the UE to report a codebook index for deriving an NCJT CSI report.

[0075] The following examples are merely illustrative and may be combined with other embodiments or aspects of the teachings described herein without limitation. The technology disclosed herein includes methods, apparatus, and computer-readable media including instructions for wireless communication. Such technology may be used in the context of a UE capable of both half-duplex mode communication and full-duplex mode communication.

[0076] Reference again Figure 5 , the UE operates under the configured settings - block 520. Each set of such configuration settings and at least one constraint thereof adapts the UE 184 to dynamic base station antenna port adaptation. Referring again to Figure 7 , and with continued reference to previous figures for context, the setting component 142 includes an operating component 142b. In some examples, the operating component 142b operates the UE under the configured settings. Thus, the operating component 142b can provide components for operating the UE under the configured settings.

[0077] Example 1 includes a method, apparatus, and computer-readable medium for wireless communication, wherein in a user equipment (UE) of a wireless communication network, the UE is configured to operate under dynamic base station antenna port adaptation and is configurable to operate under one or more of the following settings: i) multiple active transmission configuration indicator (TCI) states; ii) a CORESET index pool with multiple control resource sets (CORESET) indices; iii) channel state information (CSI) enhancement, the channel state information (CSI) enhancement including at least one of a channel measurement source (CMR) pair and a CSI report enhancement for a non-coherent joint transmission (NCJT) measurement hypothesis; iv) a codebook for calculating CSI for a simplified base station antenna configuration. The UE is configured to operate under one or more of the settings with at least one restriction, and then operates under the configured settings. Example 2 includes Example 1, wherein configuring the UE to operate under one or more of the settings with at least one restriction includes configuring the UE to disable: multiple active TCI states, and a CORSET index pool with multiple CORESET indices. Example 3 includes any one or more of Examples 1 and 2, wherein configuring the UE to operate under one or more of the settings with at least one restriction includes configuring the UE to: operate in any of multiple active TCI states or a CORSET index pool with multiple CORESET indexes; and disabling CMR pairs for NCJT measurement assumptions. Example 4 includes any one or more of Examples 1 to 3, wherein configuring the UE to operate under one or more of the settings with at least one restriction includes configuring the UE to operate under CSI enhancement with a common simplified codebook for a single measurement hypothesis and an NCJT measurement hypothesis. Example 5 includes any one or more of Examples 1 to 4, wherein configuring the UE to operate under one or more of the settings with at least one restriction includes configuring the UE to report an index of the common simplified codebook used to derive an NCJT CSI report. Example 6 includes any one or more of Examples 1 to 5, wherein configuring the UE to operate under one or more of the settings with at least one restriction includes configuring the UE to operate under CSI enhancement with one or more of the simplified codebook pairs for deriving NCJT CSI. Example 7 includes any one or more of Examples 1 to 6, wherein configuring the UE to operate under one or more of the settings with at least one restriction includes configuring the UE to report a codebook index for deriving an NCJT CSI report.

[0078] The preceding description is provided to enable any person skilled in the art to practice the various aspects described herein. Various modifications to these aspects will be apparent to those skilled in the art, and the general principles defined herein can be applied to other aspects. Therefore, the claims are not intended to be limited to the various aspects shown herein, but should be given the full scope consistent with the language claims, wherein unless otherwise specified, the reference to an element in the singular form is not intended to represent "one and only one", but to represent "one or more". The word "exemplary" is used herein to mean "used as an example, instance, or illustration". Any aspect described herein as "exemplary" is not necessarily interpreted as being preferred or having an advantage over other aspects. Unless otherwise specified, the term "some" refers to one or more. Combinations such as "at least one of A, B, or C", "one or more of A, B, or C", "at least one of A, B, and C", "one or more of A, B, and C", and "A, B, C, or any combination thereof" include any combination of A, B, and / or C, and may include multiple A, multiple B, or multiple C. Specifically, combinations such as "at least one of A, B, or C," "one or more of A, B, or C," "at least one of A, B and C," "one or more of A, B, and C," and "A, B, C, or any combination thereof" may be A only, B only, C only, A and B, A and C, B and C, or A and B and C, wherein any such combination may include one or more members of A, B, or C. All structural and functional equivalents of the elements of the various aspects described throughout the present disclosure that are or later will be known to one of ordinary skill in the art are expressly incorporated herein by reference and are intended to be covered by the claims. In addition, nothing disclosed herein is intended to be dedicated to the public, regardless of whether such disclosure is expressly recited in the claims. Words such as "module," "mechanism," "element," "device," etc. cannot replace the word "component." Therefore, no claim element will be understood to be a component plus function unless the element is expressly stated using the phrase "component for..."

Claims

1. A method for wireless communication, the method comprising: In a user equipment (UE) of a wireless communication network, the UE is configured to operate under dynamic base station antenna port adaptation and is configurable to operate under one or more of the following settings: i) a plurality of active transmit configuration indicator (TCI) states; ii) a CORESET index pool having multiple CORESET indexes; iii) channel state information (CSI) enhancement, the channel state information (CSI) enhancement comprising at least one of a channel measurement source (CMR) pair for a non-coherent joint transmission (NCJT) measurement assumption and a CSI report enhancement; iv) a codebook for calculating CSI for a simplified base station antenna configuration: configuring the UE to operate in one or more of the settings having at least one restriction; as well as The UE is operated under the configured settings.

2. The method of claim 1 , wherein configuring the UE to operate under one or more of the settings having at least one restriction comprises configuring the UE to disable: Multiple active TCI states, and A CORSET index pool with multiple CORESET indexes.

3. The method of claim 1 , wherein configuring the UE to operate under one or more of the settings having at least one restriction comprises configuring the UE to: Operating in any of multiple active TCI states or a CORSET index pool with multiple CORESET indexes; and Disable CMR pairs used for NCJT measurement assumptions.

4. The method of claim 1 , wherein configuring the UE to operate under one or more of the settings having at least one restriction comprises: The UE is configured to operate under CSI enhancement with a common simplified codebook for the single measurement hypothesis and the NCJT measurement hypothesis.

5. The method of claim 4, wherein configuring the UE to operate under one or more of the settings having at least one restriction comprises: The UE is configured to report an index of the common simplified codebook used to derive an NCJT CSI report.

6. The method of claim 1 , wherein configuring the UE to operate under one or more of the settings having at least one restriction comprises configuring the UE to: Operating under CSI enhancement with one or more of the simplified codebook pairs for deriving NCJT CSI.

7. The method of claim 6, wherein configuring the UE to operate under one or more of the settings having at least one restriction comprises: The UE is configured to report a codebook pair index used to derive an NCJT CSI report.

8. An apparatus for wireless communication, the apparatus comprising: Memory; as well as at least one processor coupled to the memory, the memory comprising instructions executable by the at least one processor to cause the apparatus to: In a user equipment (UE) of a wireless communication network, the UE is configured to operate under dynamic base station antenna port adaptation and is configurable to operate under one or more of the following settings: i) a plurality of active transmit configuration indicator (TCI) states; ii) a CORESET index pool having multiple CORESET indexes; iii) channel state information (CSI) enhancement, the channel state information (CSI) enhancement comprising at least one of a channel measurement source (CMR) pair for a non-coherent joint transmission (NCJT) measurement assumption and a CSI report enhancement; iv) a codebook for calculating CSI for a simplified base station antenna configuration; configuring the UE to operate in one or more of the settings having at least one restriction; as well as The UE is operated under the configured settings.

9. The apparatus of claim 8, wherein configuring the UE to operate under one or more of the settings having at least one restriction comprises configuring the UE to disable: Multiple active TCI states, and A CORSET index pool with multiple CORESET indexes.

10. The apparatus of claim 8, wherein configuring the UE to operate under one or more of the settings having at least one restriction comprises configuring the UE to: Operating in any of multiple active TCI states or a CORSET index pool with multiple CORESET indexes; and Disable CMR pairs used for NCJT measurement assumptions.

11. The apparatus of claim 8, wherein configuring the UE to operate under one or more of the settings having at least one restriction comprises: The UE is configured to operate under CSI enhancement with a common simplified codebook for the single measurement hypothesis and the NCJT measurement hypothesis.

12. The apparatus of claim 11, wherein configuring the UE to operate under one or more of the settings having at least one restriction comprises: The UE is configured to report an index of the common simplified codebook used to derive an NCJT CSI report.

13. The apparatus of claim 8, wherein configuring the UE to operate under one or more of the settings having at least one restriction comprises configuring the UE to: Operating under CSI enhancement with one or more of the simplified codebook pairs for deriving NCJT CSI.

14. The apparatus of claim 13, wherein configuring the UE to operate under one or more of the settings having at least one restriction comprises: The UE is configured to report a codebook pair index used to derive an NCJT CSI report.

15. A non-transitory computer readable medium storing processor executable code, which, when read and executed by at least one processor of a user equipment (UE), causes the UE to: In a user equipment (UE) of a wireless communication network, the UE is configured to operate under dynamic base station antenna port adaptation and is configurable to operate under one or more of the following settings: i) a plurality of active transmit configuration indicator (TCI) states; ii) a CORESET index pool having multiple CORESET indexes; iii) channel state information (CSI) enhancement, the channel state information (CSI) enhancement comprising at least one of a channel measurement source (CMR) pair for a non-coherent joint transmission (NCJT) measurement assumption and a CSI report enhancement; iv) a codebook for calculating CSI for a simplified base station antenna configuration; configuring the UE to operate in one or more of the settings having at least one restriction; as well as The UE is operated under the configured settings.

16. The non-transitory computer-readable medium of claim 15, wherein configuring the UE to operate under one or more of the settings having at least one restriction comprises configuring the UE to disable: Multiple active TCI states, and A CORSET index pool with multiple CORESET indexes.

17. The non-transitory computer-readable medium of claim 15, wherein configuring the UE to operate under one or more of the settings having at least one restriction comprises configuring the UE to: Operating in any of multiple active TCI states or a CORSET index pool with multiple CORESET indexes; and Disable CMR pairs used for NCJT measurement assumptions.

18. The non-transitory computer-readable medium of claim 15, wherein configuring the UE to operate under one or more of the settings having at least one restriction comprises: The UE is configured to operate under CSI enhancement with a common simplified codebook for the single measurement hypothesis and the NCJT measurement hypothesis.

19. The non-transitory computer-readable medium of claim 18, wherein configuring the UE to operate under one or more of the settings having at least one restriction comprises: The UE is configured to report an index of the common simplified codebook used to derive an NCJT CSI report.

20. The non-transitory computer-readable medium of claim 15, wherein configuring the UE to operate under one or more of the settings having at least one restriction comprises configuring the UE to: Operating under CSI enhancement with one or more of the simplified codebook pairs for deriving NCJT CSI.

21. The non-transitory computer-readable medium of claim 20, wherein configuring the UE to operate under one or more of the settings having at least one restriction comprises: The UE is configured to report a codebook index used to derive an NCJT CSI report.

22. An apparatus for wireless communication, the apparatus comprising: Components for use in a user equipment (UE) of a wireless communication network, the UE being configured to operate under dynamic base station antenna port adaptation and being configurable to operate under one or more of the following settings: i) a plurality of active transmit configuration indicator (TCI) states; ii) a CORESET index pool having multiple CORESET indexes; iii) channel state information (CSI) enhancement, the channel state information (CSI) enhancement comprising at least one of a channel measurement source (CMR) pair for a non-coherent joint transmission (NCJT) measurement assumption and a CSI report enhancement; iv) a codebook for calculating CSI for a simplified base station antenna configuration: configuring the UE to operate in one or more of the settings having at least one restriction; as well as The UE is operated under the configured settings.

23. The apparatus of claim 22, wherein configuring the UE to operate under one or more of the settings having at least one restriction comprises configuring the UE to disable: Multiple active TCI states, and A CORSET index pool with multiple CORESET indexes.

24. The apparatus of claim 22, wherein configuring the UE to operate under one or more of the settings having at least one restriction comprises configuring the UE to: Operating in any of multiple active TCI states or a CORSET index pool with multiple CORESET indexes; and Disable CMR pairs used for NCJT measurement assumptions.

25. The apparatus of claim 22, wherein configuring the UE to operate under one or more of the settings having at least one restriction comprises: The UE is configured to operate under CSI enhancement with a common simplified codebook for the single measurement hypothesis and the NCJT measurement hypothesis.

26. The apparatus of claim 25, wherein configuring the UE to operate under one or more of the settings having at least one restriction comprises: The UE is configured to report an index of the common simplified codebook used to derive an NCJT CSI report.

27. The apparatus of claim 22, wherein configuring the UE to operate under one or more of the settings having at least one restriction comprises configuring the UE to: Operating under CSI enhancement with one or more of the simplified codebook pairs for deriving NCJT CSI.

28. The apparatus of claim 27, wherein configuring the UE to operate under one or more of the settings having at least one restriction comprises: The UE is configured to report a codebook index used to derive an NCJT CSI report.

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