CSI Extensions

Abstract

Apparatuses, systems, and methods for channel state information (CSI) enhancement in wireless communication systems, such as 5G NR systems and beyond, including systems, methods, and mechanisms for quasi-co-location (QCL) configuration for multi-TRP CSI and CSI reporting configuration to support reporting of single-TRP and multi-TRP measurements in a single reporting instance.

Description

[Technical Field]

[0001] The present invention relates to wireless communications, and more particularly to an apparatus, system, and method for channel state information (CSI) enhancement in wireless communications systems, for example in 5G NR systems and beyond. [Background technology]

[0002] The use of wireless communication systems is growing rapidly. In recent years, wireless devices such as smartphones and tablet computers have become increasingly sophisticated. In addition to supporting telephony functions, many mobile devices now provide Internet access, email, text messaging, and navigation using the global positioning system (GPS), and can run sophisticated applications that take advantage of these functionalities.

[0003] Long Term Evolution (LTE) is the current technology of choice for most wireless network operators worldwide, providing mobile broadband data and high-speed Internet access to their subscriber bases. LTE was first proposed in 2004 and first standardized in 2008. Since then, as the use of wireless communication systems has expanded exponentially, there has been an increasing demand for wireless network operators to support higher capacity for a higher density of mobile broadband users. Therefore, research into new radio access technologies began in 2015, and the first release of Fifth Generation New Radio (5G NR) was standardized in 2017. 5G-NR, also referred to simply as NR, offers higher capacity for a higher density of mobile broadband users compared to LTE, while also supporting device-to-device, ultra-reliable, and large-scale machine-type communications with lower latency and / or lower battery consumption. Furthermore, NR may enable more flexible UE scheduling compared to current LTE. As a result, 5G-NR development efforts are underway to take advantage of the higher throughput possible at higher frequencies. Summary of the Invention

[0004] Embodiments relate to wireless communications, and more particularly to apparatuses, systems, and methods for CSI extension in wireless communications systems, e.g., in 5G NR systems and beyond.

[0005] For example, in some embodiments, a user equipment device (UE) may be configured to receive from the network a medium access control (MAC) control element (CE) indicating quasi-co-location (QCL) information for channel state information (CSI) reference signal (CSI)-RS resources in a semi-persistent CSI-RS resource set. The MAC CE may include an indication of at least single-TRP and multi-TRP transmission configuration indicator (TCI) states corresponding to the CSI-RS resources in the semi-persistent CSI-RS resource set. Additionally, the MAC CE may include 2N+k1+k2 TCI states corresponding to 2N+k1+k2 CSI-RS resources, where the 2N+k1+k2 CSI-RS resources may be for N channel measurement resource (CMR) pairs for multi-TRP CSI-RS measurements, k1 CMRs in a first group for the first single-TRP measurement, and k2 CMRs in a second group for the second single-TRP measurement. Furthermore, the UE may receive a CSI reporting configuration from the network, which may indicate which CSI the UE should report. In addition, the UE may use the QCL information and perform CSI measurements based on the CSI reporting configuration.

[0006] As another example, the UE may receive a radio resource control (RRC) message from the network that may include parameters for configuring a QCL for aperiodic CSI measurements. The parameters may include a QCL information list that may include TCI state identifiers (IDs) for multi-TRP CSI measurements and single-TRP measurements. The UE may interpret the first 2N TCI state IDs in the QCL information list as configured for 2N channel measurement resources (CMRs) in N CMR pairs for multi-TRP CSI measurements configured in the corresponding CSI-RS resource set configured for aperiodic CSI measurements, the next k1 TCI state IDs in the QCL information list as configured for k1 CMRs in a first CMR group for a first single-TRP CSI measurement configured in the corresponding CSI-RS resource set configured for aperiodic CSI measurements, and the next k2 TCI state IDs in the QCL information list as configured for k2 CMRs in a second CMR group for a second single-TRP CSI measurement configured in the corresponding CSI-RS resource set configured for aperiodic CSI measurements.

[0007] As a further example, a UE may receive an RRC message that may include parameters for configuring QCLs for aperiodic CSI measurements, where the parameters may include at least two QCL information lists. A first QCL information list of the at least two QCL information lists may include and / or be associated with a TCI state ID for a single-TRP CSI measurement, and a second QCL information list of the at least two QCL information lists may include and / or be associated with a TCI state ID for a multi-TRP measurement. The second QCL information list may include 2N TCI state IDs that may be configured for 2N channel measurement resources (CMRs) in N CMR pairs of the multi-TRP CSI measurement configured in a corresponding CSI-RS resource set configured for the aperiodic CSI measurements, and the first QCL information list may include k1 + k2 TCI state IDs configured for k1 + k2 single-TRP measurements configured in a corresponding CSI-RS resource set configured for the aperiodic CSI measurements. The first k1 TCI state IDs in the first QCL information list may be configured for k1 CMRs in a first CMR group of a first single-TRP CSI measurement configured in a corresponding CSI-RS resource set configured for aperiodic CSI measurements, and the next k2 TCI state IDs in the first QCL information list may be configured for k2 CMRs in a second CMR group of a second single-TRP CSI measurement configured in a corresponding CSI-RS resource set configured for aperiodic CSI measurements.

[0008] As yet another example, the UE may receive from the network a CSI reporting configuration that may configure the UE to report one CSI associated with a single-TRP CSI measurement hypothesis along with CSI of the multi-TRP CSI measurement hypotheses. The UE may select a CMR group for the single-TRP measurement based at least in part on at least one selection criterion. In some cases, selecting a CMR group for the single-TRP measurement based on at least one selection criterion may include the UE selecting a first CMR group for the single-TRP measurement, the UE determining which CMR group is selected based on a configuration in the CSI-RS reporting configuration, and / or the UE measuring both CMR groups and reporting the best single-TRP hypothesis across both CMR groups.

[0009] As a further example, a UE may receive a CSI reporting configuration that may configure the UE to report zero CSI associated with a single-TRP measurement hypothesis along with CSI for a multi-TRP hypothesis for which shared CMR is configured. The UE may interpret the CSI reporting configuration based at least in part on at least one interpretation criterion. In some cases, interpreting the CSI reporting configuration based on at least one interpretation criterion may include the UE treating such a configuration as an error case, the UE reporting multi-TRP CSI measurements without any single-TRP CSI measurements, and / or the UE reporting multi-TRP CSI measurements and single-TRP CSI measurements.

[0010] The techniques described herein may be implemented in and / or used in conjunction with several different types of devices, including, but not limited to, unmanned aerial vehicles (UAVs), unmanned aerial vehicle controllers (UACs), UTM servers, base stations, access points, cellular telephones, tablet computers, wearable computing devices, portable media players, and any of a variety of other computing devices.

[0011] This Summary is intended to provide a brief overview of some of the subject matter described in this document. Accordingly, it should be understood that the above features are merely examples and should not be construed as narrowing the scope or spirit of the subject matter described herein. Other features, aspects, and advantages of the subject matter described herein will become apparent from the following Detailed Description, the drawings, and the claims.

[0012] A better understanding of the present subject matter may be obtained from the following detailed description of various embodiments when considered in conjunction with the following drawings. [Brief explanation of the drawings]

[0013] [Figure 1A] 1 illustrates an exemplary wireless communication system according to some embodiments.

[0014] [Figure 1B] 1 illustrates an example of a base station and an access point in communication with a user equipment (UE) device, according to some embodiments.

[0015] [Figure 2] 1 is an exemplary block diagram of a base station according to some embodiments.

[0016] [Figure 3] 1 illustrates an exemplary block diagram of a server according to some embodiments.

[0017] [Figure 4] 1 illustrates an example block diagram of a UE according to some embodiments.

[0018] [Figure 5] FIG. 2 is an exemplary block diagram of a cellular communication circuit according to some embodiments.

[0019] [Figure 6A]1 illustrates an example 5G network architecture incorporating both 3GPP (e.g., cellular) and non-3GPP (e.g., non-cellular) access to a 5G CN, according to some embodiments.

[0020] [Figure 6B] 1 illustrates an example of a 5G network architecture incorporating both dual 3GPP (e.g., LTE and 5G NR) access and non-3GPP access to a 5G CN, according to some embodiments.

[0021] [Figure 7] 1 illustrates an example of a baseband processor architecture for a UE, according to some embodiments.

[0022] [Figure 8] 1 illustrates an example of a MAC CE for configuring QCL information, according to some embodiments.

[0023] [Figure 9] 10 illustrates an example of a CSI-AssociatedReportConfigInfo parameter according to some embodiments.

[0024] [Figure 10] 1 illustrates a block diagram of an example method for CSI extension in a wireless communication system, including a QCL configuration for multi-TRP CSI and a method for reporting single-TRP and multi-TRP measurements in a single reporting instance, according to an embodiment. [Figure 11] 1 illustrates a block diagram of an example method for CSI extension in a wireless communication system, including a QCL configuration for multi-TRP CSI and a method for reporting single-TRP and multi-TRP measurements in a single reporting instance, according to an embodiment. [Figure 12]1 illustrates a block diagram of an example method for CSI extension in a wireless communication system, including a QCL configuration for multi-TRP CSI and a method for reporting single-TRP and multi-TRP measurements in a single reporting instance, according to an embodiment. [Figure 13] 1 illustrates a block diagram of an example method for CSI extension in a wireless communication system, including a QCL configuration for multi-TRP CSI and a method for reporting single-TRP and multi-TRP measurements in a single reporting instance, according to an embodiment. [Figure 14] 1 illustrates a block diagram of an example method for CSI extension in a wireless communication system, including a QCL configuration for multi-TRP CSI and a method for reporting single-TRP and multi-TRP measurements in a single reporting instance, according to an embodiment.

[0025] While the features described herein are susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings and are herein described in detail. It should be understood, however, that the drawings and detailed description are not intended to limit the invention to the particular forms disclosed, but rather to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the present subject matter as defined by the appended claims. DETAILED DESCRIPTION OF THE INVENTION

[0026] acronym

[0027] Various acronyms are used throughout this disclosure. Definitions of the most prominently used acronyms that may appear throughout this disclosure are provided below. 3GPP: Third Generation Partnership Project UE: User Equipment RF: Radio Frequency DL: Downlink UL: Uplink LTE: Long Term Evolution ·NR: New radio 5GS: 5G system 5GMM: 5GS Mobility Management 5GC / 5GCN: 5G Core Network ·IE: Information Element ·CE: Control element MAC: Medium Access Control SSB: Synchronization signal block CSI: Channel State Information CSI-RS: Channel State Information Reference Signal CMR: Channel Measurement Resource PDCCH: Physical Downlink Control Channel PDSCH: Physical Downlink Shared Channel RRC: Radio Resource Control RRM: Radio Resource Management CORESET: Control resource set TCI: Transmission Configuration Indicator DCI: Downlink Control Indicator term

[0028] The following is a description of terms used in this disclosure:

[0029] Memory medium—any of various types of non-transitory memory or storage devices. The term “memory medium” is intended to include, for example, installation media such as CD-ROMs, floppy disks, or tape drives; computer system memory or random access memory such as DRAM, DDR RAM, SRAM, EDO RAM, Rambus RAM; non-volatile memory such as magnetic media such as flash or hard drives, or optical storage; registers, or other similar types of memory elements. Memory media may also include other types of non-transitory memory, or combinations thereof. Additionally, memory media may be located in a first computer system on which a program is executed, or may be located in a second, different computer system connected to the first computer system via a network such as the Internet. In the latter case, the second computer system can provide program instructions to the first computer for execution. The term “memory medium” may also include two or more memory media that can reside in different locations, for example, in different computer systems connected via a network. A memory medium may store program instructions (e.g., embodied as a computer program) that can be executed by one or more processors.

[0030] Carrier Medium - memory media as described above, as well as physical transmission media such as buses, networks, and / or other physical transmission media that carry signals, such as electrical, electromagnetic, or digital signals.

[0031] Programmable Hardware Element—includes a variety of hardware devices with multiple programmable function blocks connected via programmable interconnects. Examples include Field Programmable Gate Arrays (FPGAs), Programmable Logic Devices (PLDs), Field Programmable Object Arrays (FPOAs), and Complex PLDs (CPLDs). Programmable function blocks can range in granularity from fine-grained (combinational logic or look-up tables) to coarse-grained (arithmetic logic units or processor cores). Programmable hardware elements may also be referred to as “reconfigurable logic.”

[0032] Computer system (or computer)—Any of various types of computing or processing systems, including a personal computer system (PC), a mainframe computer system, a workstation, a network appliance, an Internet appliance, a personal digital assistant (PDA), a television system, a grid computing system, or any other device or combination of devices. In general, the term “computer system” can be broadly defined to encompass any device (or combination of devices) having at least one processor that executes instructions from a memory medium.

[0033] User Equipment (UE) (or "UE device")—Any of various types of mobile or handheld computer system devices that perform wireless communications. Examples of UE devices include mobile phones or smartphones (e.g., iPhone™, Android™-based phones), portable gaming devices (e.g., Nintendo DS™, PlayStation Portable™, Gameboy Advance™, iPhone™), laptops, wearable devices (e.g., smart watches, smart glasses), PDAs, portable Internet devices, music players, data storage devices, other handheld devices, unmanned aerial vehicles (UAVs) (e.g., drones), UAV controllers (UACs), etc. In general, the terms "UE" or "UE device" can be broadly defined to encompass any electronic, computing, and / or telecommunications device (or combination of devices) that is easily carried by a user and capable of wireless communications.

[0034] Base Station - The term "base station" has the full scope of its ordinary meaning and includes at least a wireless communication station that is installed at a fixed location and used for communication as part of a wireless telephone or wireless system.

[0035] Processing Element (or Processor)—refers to various elements or combinations of elements capable of performing functions in a device such as user equipment or a cellular network device. A processing element may include, for example, a processor and associated memory, a portion or circuitry of an individual processor core, an entire processor core, a processor array, a circuit such as an Application Specific Integrated Circuit (ASIC), a programmable hardware element such as a Field Programmable Gate Array (FPGA), and various combinations of the above.

[0036] Channel—A medium used to convey information from a sender (transmitter) to a receiver. Note that because the characteristics of the term “channel” may vary according to different wireless protocols, when used herein, the term “channel” is considered to be used consistent with the standard for the type of device with which the term is used. In some standards, channel width may be variable (e.g., depending on device capabilities, band conditions, etc.). For example, LTE may support scalable channel bandwidths from 1.4 MHz to 20 MHz. In contrast, WLAN channels may have a 22 MHz width, and Bluetooth channels may have a 1 MHz width. Other protocols and standards may include different channel definitions. Furthermore, some standards may define and use multiple types of channels, e.g., different channels for uplink or downlink, and / or different channels for different uses, such as data, control information, etc.

[0037] Band - The term "band" has the full scope of the ordinary meaning of band and includes at least that portion of the spectrum (e.g., the radio frequency spectrum) in which channels are used for a purpose or set aside for the same purpose.

[0038] Wi-Fi - The term "Wi-Fi" (or WiFi) has the full scope of its ordinary meaning and includes at least a wireless communication network or RAT served by wireless LAN (WLAN) access points and providing connectivity to the Internet through these access points. Most modern Wi-Fi networks (or WLAN networks) are based on the IEEE 802.11 standard and are marketed under the name "Wi-Fi." Wi-Fi (WLAN) networks are distinct from cellular networks.

[0039] 3GPP Access—Refers to access (e.g., radio access technologies) specified by 3GPP standards. These accesses include, but are not limited to, GSM / GPRS, LTE, LTE-A, and / or 5G NR. Generally, 3GPP access refers to various types of cellular access technologies.

[0040] Non-3GPP access—refers to any access (e.g., radio access technology) not specified by a 3GPP standard. These accesses include, but are not limited to, WiMAX, CDMA2000, Wi-Fi, WLAN, and / or fixed networks. Non-3GPP accesses can be divided into two categories: “trusted” and “untrusted”: trusted non-3GPP accesses can interact directly with the Evolved Packet Core (EPC) and / or 5G Core (5GC), whereas untrusted non-3GPP accesses interact with the EPC / 5GC via network entities such as an Evolved Packet Data Gateway and / or a 5G NR Gateway. In general, non-3GPP accesses refer to various types of non-cellular access technologies.

[0041] Automatically—refers to an action or operation performed by a computer system (e.g., software executed by a computer system) or device (e.g., a circuit, programmable hardware element, ASIC, etc.) without user input directly specifying or executing the action or operation. Thus, the term “automatically” is contrasted with an operation that is manually performed or specified by a user, in which the user provides input to directly perform the operation. An automatic procedure may be initiated by input provided by a user, but subsequent actions performed “automatically” are not specified by the user; that is, they are not performed “manually,” with the user specifying each action to be performed. For example, a user filling out an electronic form by selecting each field and providing input specifying information (e.g., by typing information, selecting checkboxes, selecting radio selections, etc.) is considered manually filling out the form, even though the computer system must update the form in response to the user actions. A form may also be filled out automatically by a computer system, in which the computer system (e.g., software executed on the computer system) analyzes the form's fields and fills out the form without user input specifying answers to the fields. As noted above, a user can invoke automatic form filling but is not involved in the actual filling of the form (e.g., the user does not manually specify answers in fields, but rather the answers are completed automatically). This specification provides various examples of actions that are automatically performed in response to actions taken by a user.

[0042] Approximately—refers to a value that is nearly accurate or precise. For example, approximately may refer to a value that is within 1-10 percent of a precise (or desired) value. Note, however, that the actual threshold (or tolerance) may depend on the application. For example, in some embodiments, "approximately" may mean within 0.1% of some specified or desired value, while in various other embodiments, the threshold may be, for example, 2%, 3%, 5%, etc., as desired or required by the particular application.

[0043] Concurrent—refers to parallel execution or performance in which tasks, processes, or programs execute in an at least partially overlapping manner. For example, concurrent execution may be performed using “strong” or strict parallelism, where tasks are executed (at least partially) in parallel on respective computing elements, or “weak parallelism,” where tasks are executed in an interleaved manner, e.g., by time-division multiplexing of execution threads.

[0044] Various components may be described as being "configured to" perform a task or tasks. In this context, "configured to" is a broad description that generally means "having the structure" to perform a task or tasks during operation. Thus, a component may be configured to perform a task even when the component is not currently performing the task (e.g., a set of conductors may be configured to electrically connect a module to another module even when the two modules are not connected). In some contexts, "configured to" may be a broad description of a structure that generally means "having circuitry" to perform a task or tasks during operation. Thus, a component may be configured to perform a task even when the component is not currently on. In general, the circuitry forming the structure corresponding to "configured to" may include hardware circuitry.

[0045] In the description herein, for convenience, various components may be described as performing a task or tasks. Such descriptions should be construed to include the phrase "configured to." It is expressly intended that a description of a component being configured to perform one or more tasks does not invoke 35 U.S.C. 112(f) interpretation with respect to that component. Figures 1A and 1B: Communication System

[0046] 1A illustrates a simplified exemplary wireless communication system according to some embodiments. It should be noted that the system of FIG. 1A is merely one example of a possible system, and that features of the present disclosure may be implemented in any of a variety of systems, as desired.

[0047] As shown in the figure, the exemplary wireless communication system includes a base station 102A that communicates over a transmission medium with one or more user devices 106A, 106B, etc. through 106N. Each of the user devices may be referred to herein as a "user equipment" (UE). Accordingly, the user devices 106 are referred to as UEs or UE devices.

[0048] The base station (BS) 102A may be a base transceiver station (BTS) or cell site (cellular base station), and may include hardware that enables wireless communication with the UEs 106A-106N.

[0049] The communication area (or coverage area) of a base station may be referred to as a "cell." The base station 102A and the UE 106 may be configured to communicate over a transmission medium using any of a variety of radio access technologies (RATs), also referred to as wireless communication technologies or telecommunications standards, such as GSM, UMTS (e.g., associated with a WCDMA or TD-SCDMA air interface), LTE, LTE-Advanced (LTE-A), 5G New Radio (5G NR), HSPA, 3GPP2 CDMA2000 (e.g., 1xRTT, 1xEV-DO, HRPD, eHRPD), etc. Note that if the base station 102A is implemented in the context of LTE, it may alternatively be referred to as an "eNodeB" or "eNB." Note that if the base station 102A is implemented in the context of 5G NR, it may alternatively be referred to as a "gNodeB" or "gNB."

[0050] As shown, the base station 102A may also be equipped to communicate with a network 100 (e.g., a cellular service provider's core network, a telecommunications network such as the Public Switched Telephone Network (PSTN), and / or the Internet, among other possibilities). Thus, the base station 102A may facilitate communications between user devices and / or between the user devices and the network 100. In particular, the cellular base station 102A may provide various telecommunications capabilities to the UE 106, such as voice, SMS, and / or data services.

[0051] Base station 102A and other similar base stations (such as base stations 102B-102N) operating according to the same or different cellular communication standards may be provided as a network of cells that can provide continuous or near-continuous overlaid services to UEs 106A-106N and similar devices via one or more cellular communication standards over a geographic area.

[0052] Thus, as shown in FIG. 1, base station 102A may function as a "serving cell" for UEs 106A-106N, and each UE 106 may also receive signals from (if possible within range of) one or more other cells (which may be provided by base stations 102B-102N and / or any other base stations), which may be referred to as "neighboring cells." Such cells may also facilitate communication between user devices and / or between user devices and network 100. Such cells may include "macro" cells, "micro" cells, "pico" cells, and / or cells providing any of various other granularities of coverage area size. For example, base stations 102A-102B shown in FIG. 1 may be macro cells, and base station 102N may be a micro cell. Other configurations are possible.

[0053] In some embodiments, the base station 102A may be a next-generation base station, e.g., a 5G New Radio (5G NR) base station, or "gNB." In some embodiments, the gNB may be connected to a conventional Evolved Packet Core (EPC) network and / or an NR Core (NRC) network. In addition, a gNB cell may include one or more Transition and Reception Points (TRPs). In addition, a UE capable of operating according to 5G NR may be connected to one or more TRPs in one or more gNBs.

[0054] It should be noted that the UE 106 may be capable of communicating using multiple wireless communication standards. For example, the UE 106 may be configured to communicate using at least one cellular communication protocol (e.g., GSM, UMTS (e.g., associated with a WCDMA or TD-SCDMA air interface), LTE, LTE-A, 5G NR, HSPA, 3GPP2 CDMA2000 (e.g., 1xRTT, 1xEV-DO, HRPD, eHRPD), etc.), in addition to wireless networking (e.g., Wi-Fi) and / or peer-to-peer wireless communication protocols (e.g., Bluetooth, Wi-Fi peer-to-peer, etc.). The UE 106 may additionally or alternatively be configured to communicate using one or more Global Navigational Satellite Systems (GNSS, e.g., GPS or GLONASS), one or more mobile television broadcast standards (e.g., ATSC-M / H or DVB-H), and / or any other wireless communication protocol, if desired. Other combinations of wireless communication standards (including three or more wireless communication standards) are also possible.

[0055] 1B illustrates a user equipment 106 (e.g., one of devices 106A-106N) in communication with a base station 102 and an access point 112, according to some embodiments. The UE 106 may be a device with both cellular and non-cellular communication capabilities (e.g., Bluetooth, Wi-Fi, etc.), such as a mobile phone, a handheld device, a computer or tablet, or virtually any type of wireless device.

[0056] The UE 106 may include a processor configured to execute program instructions stored in a memory. The UE 106 may perform any of the method embodiments described herein by executing such stored instructions. Alternatively or additionally, the UE 106 may include a programmable hardware element, such as a field programmable gate array (FPGA), configured to perform any of the method embodiments described herein, or any portion of any of the method embodiments described herein.

[0057] The UE 106 may include one or more antennas for communicating using one or more wireless communication protocols or technologies. In some embodiments, the UE 106 may be configured to communicate using, for example, CDMA2000 (1xRTT / 1xEV-DO / HRPD / eHRPD), LTE / LTE-Advanced, or 5G NR using a single shared radio, and / or GSM, LTE / LTE-Advanced, or 5G NR using a single shared radio. The shared radio may be coupled to a single antenna or to multiple antennas (e.g., for MIMO) to perform wireless communication. In general, a radio may include any combination of a baseband processor, analog RF signal processing circuitry (e.g., including filters, mixers, oscillators, amplifiers, etc.), or digital processing circuitry (e.g., for digital modulation and other digital processing). Similarly, a radio may perform one or more receive and transmit chains using the above hardware. For example, the UE 106 may share one or more portions of the receive and / or transmit chains among multiple wireless communication technologies, such as those listed above.

[0058] In some embodiments, the UE 106 may include a separate transmit and / or receive chain (e.g., including separate antennas and other radio components) for each wireless communication protocol over which the UE 106 is configured to communicate. As a further possibility, the UE 106 may include one or more radios shared among multiple wireless communication protocols and one or more radios used only by a single wireless communication protocol. For example, the UE 106 may include a shared radio for communicating using either LTE or 5G NR (or LTE, or 1xRTT, or LTE, or GSM) and separate radios for communicating using each of Wi-Fi and Bluetooth. Other configurations are possible. Figure 2 - Base Station Block Diagram

[0059] 2 shows an exemplary block diagram of a base station 102, according to some embodiments. Note that the base station of FIG. 3 is merely one example of a possible base station. As shown, the base station 102 may include a processor(s) 204 that may execute program instructions for the base station 102. The processor(s) 204 may also be coupled to a memory management unit (MMU) 240, which may be configured to receive addresses from the processor(s) 204 and translate those addresses to locations in memory (e.g., memory 260 and read-only memory (ROM) 250) or other circuits or devices.

[0060] The base station 102 may include at least one network port 270. The network port 270 may be configured to couple to a telephone network and provide devices, such as the UE device 106, with access to the telephone network as described above in FIGS.

[0061] Network port 270 (or additional network ports) may also or alternatively be configured to couple to a cellular network, for example, a core network of a cellular service provider. The core network may provide mobility-related services and / or other services to multiple devices, such as UE device 106. In some cases, network port 270 may couple to a telephone network through the core network, and / or the core network may provide telephone service (e.g., between other UE devices serviced by the cellular service provider).

[0062] In some embodiments, the base station 102 may be a next-generation base station, e.g., a 5G New Radio (5G NR) base station, or "gNB." In such embodiments, the base station 102 may be connected to a conventional evolved packet core (EPC) network and / or an NR core (NRC) network. In addition, the base station 102 may be considered a 5G NR cell and may include one or more transition and reception points (TRPs). In addition, a UE capable of operating according to 5G NR may be connected to one or more TRPs in one or more gNBs.

[0063] The base station 102 may include at least one antenna 234, and possibly multiple antennas. The at least one antenna 234 may be configured to operate as a wireless transceiver and may be further configured to communicate with the UE device 106 via a radio 230. The antenna 234 communicates with the radio 230 via a communication chain 232. The communication chain 232 may be a receive chain, a transmit chain, or both. The radio 230 may be configured to communicate via various wireless communication standards, including, but not limited to, 5G NR, LTE, LTE-A, GSM, UMTS, CDMA2000, Wi-Fi, etc.

[0064] The base station 102 may be configured to communicate wirelessly using multiple wireless communication standards. In some cases, the base station 102 may include multiple radios, which may enable the base station 102 to communicate according to multiple wireless communication technologies. For example, in one possibility, the base station 102 may include an LTE radio for performing communications according to LTE and a 5G NR radio for performing communications according to 5G NR. In such a case, the base station 102 may be capable of operating as both an LTE base station and a 5G NR base station. In another possibility, the base station 102 may include a multimode radio, which may be capable of performing communications according to any of multiple wireless communication technologies (e.g., 5G NR and Wi-Fi, LTE and Wi-Fi, LTE and UMTS, LTE and CDMA2000, UMTS and GSM, etc.).

[0065] As described further herein below, the BS 102 may include hardware and software components for implementing or supporting the implementation of the features described herein. The processor 204 of the base station 102 may be configured to implement or support the implementation of some or all of the methods described herein, for example, by executing program instructions stored on a memory medium (e.g., a non-transitory computer-readable memory medium). Alternatively, the processor 204 may be configured as a programmable hardware element, such as an FPGA (field programmable gate array), or as an ASIC (application-specific integrated circuit), or a combination thereof. Alternatively (or in addition), the processor 204 of the BS 102, together with one or more of the other components 230, 232, 234, 240, 250, 260, and 270, may be configured to implement or support the implementation of some or all of the features described herein.

[0066] Additionally, as described herein, the processor(s) 204 may be comprised of one or more processing elements. In other words, one or more processing elements may be included within the processor(s) 204. Thus, the processor(s) 204 may include one or more integrated circuits (ICs) configured to perform the functions of the processor(s) 204. Additionally, each integrated circuit may include a circuit (e.g., a first circuit, a second circuit, etc.) configured to perform the functions of the processor(s) 204.

[0067] Further, as described herein, radio 230 may be comprised of one or more processing elements. In other words, one or more processing elements may be included within radio 230. Thus, radio 230 may include one or more integrated circuits (ICs) configured to perform the functions of radio 230. In addition, each integrated circuit may include a circuit (e.g., a first circuit, a second circuit, etc.) configured to perform the functions of radio 230. Figure 3: Server block diagram

[0068] 3 shows an exemplary block diagram of server 104, according to some embodiments. Note that the server in FIG. 3 is merely one example of a possible server. As shown, server 104 may include processor(s) 344 that may execute program instructions for server 104. Processor(s) 344 may also be coupled to memory management unit (MMU) 374, which may be configured to receive addresses from processor(s) 344 and translate those addresses to locations in memory (e.g., memory 364 and read-only memory (ROM) 354) or other circuits or devices.

[0069] The server 104 may be configured to provide access to network functionality to multiple devices, such as the base station 102, the UE device 106, and / or the UTM 108, for example, as further described herein.

[0070] In some embodiments, the server 104 may be part of a radio access network, such as a 5G New Radio (5G NR) radio access network. In some embodiments, the server 104 may be connected to a legacy Evolved Packet Core (EPC) network and / or an NR Core (NRC) network.

[0071] As described further herein, server 104 may include hardware and software components for implementing or supporting the implementation of features described herein. Processor 344 of server 104 may be configured to implement or support the implementation of some or all of the methods described herein, for example, by executing program instructions stored on a storage medium (e.g., a non-transitory computer-readable storage medium). Alternatively, processor 344 may be configured as a programmable hardware element, such as an FPGA (field programmable gate array), or as an ASIC (application-specific integrated circuit), or a combination thereof. Alternatively (or in addition), processor 344 of server 104, together with one or more of other components 354, 364, and / or 374, may be configured to implement or support the implementation of some or all of the features described herein.

[0072] Additionally, as described herein, the processor(s) 344 may be comprised of one or more processing elements. In other words, one or more processing elements may be included within the processor(s) 344. Thus, the processor(s) 344 may include one or more integrated circuits (ICs) configured to perform the functions of the processor(s) 344. Additionally, each integrated circuit may include a circuit (e.g., a first circuit, a second circuit, etc.) configured to perform the functions of the processor(s) 344. Figure 4: UE block diagram

[0073] FIG. 4 illustrates an exemplary simplified block diagram of a communication device 106, according to some embodiments. Note that the communication device block diagram of FIG. 4 is merely one example of a possible communication device. According to embodiments, the communication device 106 may be a User Equipment (UE) device, a mobile device or station, a wireless device or station, a desktop computer or computing device, a mobile computing device (e.g., a laptop, notebook, or portable computing device), a tablet, an unmanned aerial vehicle (UAV), a UAV controller (UAC), and / or a combination of devices, among other devices. As shown in the figure, the communication device 106 may include a set of components 400 configured to perform core functions. For example, the set of components may be implemented as a system on chip (SOC), which may include portions for various purposes. Alternatively, the set of components 400 may be implemented as separate components or groups of components for various purposes. The set of components 400 may be communicatively coupled (e.g., communicatively, directly or indirectly) to various other circuits of the communication device 106.

[0074] For example, communication device 106 may include various types of memory (including, for example, NAND flash 410), input / output interfaces such as connector I / F 420 (e.g., for connecting to a computer system, a dock, a charging station, or input devices such as a microphone, camera, keyboard, or output devices such as speakers), a display 460 that may be integrated with or external to communication device 106, cellular communication circuitry 430 for 5G NR, LTE, GSM, etc., and near / mid-range wireless communication circuitry 429 (e.g., Bluetooth and WLAN circuitry). In some embodiments, communication device 106 may include wired communication circuitry (not shown), such as a network interface card for Ethernet.

[0075] Cellular communication circuitry 430 may be communicatively coupled (e.g., directly or indirectly) to one or more antennas, such as antennas 435 and 436, as shown. Near-medium range wireless communication circuitry 429 may also be communicatively coupled (e.g., directly or indirectly) to one or more antennas, such as antennas 437 and 438, as shown. Alternatively, near-medium range wireless communication circuitry 429 may be communicatively coupled (e.g., directly or indirectly) to antennas 435 and 436 in addition to or instead of being communicatively coupled (e.g., directly or indirectly) to antennas 437 and 438. Near-medium range wireless communication circuitry 429 and / or cellular communication circuitry 430 may include multiple receive chains and / or multiple transmit chains for receiving and / or transmitting multiple spatial streams, such as in a multiple-input multiple-output (MIMO) configuration.

[0076] In some embodiments, as described further below, the cellular communication circuitry 430 may include dedicated receive chains (e.g., a first receive chain for LTE and a second receive chain for 5G NR) for multiple RATs (e.g., including dedicated processors and / or radios and / or communicatively coupled, directly or indirectly, to the dedicated processors and / or radios). Additionally, in some embodiments, the cellular communication circuitry 430 may include a single transmit chain that can be switched between radios dedicated to particular RATs. For example, a first radio may be dedicated to a first RAT, e.g., LTE, and may communicate with a dedicated receive chain and a transmit chain shared with an additional radio, e.g., a second radio, which may be dedicated to a second RAT, e.g., 5G NR, and may communicate with a dedicated receive chain and a shared transmit chain.

[0077] Communications device 106 may also include and / or be configured for use with one or more user interface elements, which may include any of a variety of elements, such as a display 460 (which may be a touchscreen display), a keyboard (which may be a separate keyboard or may be implemented as part of the touchscreen display), a mouse, a microphone and / or speakers, one or more cameras, one or more buttons, and / or any of a variety of other elements capable of providing information to a user and / or receiving or interpreting user input.

[0078] The communication device 106 may further include one or more smart cards 445 including SIM (Subscriber Identity Module) functionality, such as one or more UICC(s) (Universal Integrated Circuit Card(s)) cards 445. Note that the term “SIM” or “SIM entity” is intended to include various types of SIM implementations or SIM functionality, such as one or more UICC(s) cards 445, one or more eUICCs, one or more eSIMs, either removable or embedded. In some embodiments, the UE 106 may include at least two SIMs. Each SIM may run one or more SIM applications and / or implement SIM functionality. Thus, each SIM may be a single embeddable smart card that may be soldered onto a circuit board within the UE 106, for example, or each SIM 410 may be implemented as a removable smart card. Thus, the SIM(s) may be one or more removable smart cards (e.g., UICC cards, which may be referred to as “SIM cards”) and / or the SIM 410 may be one or more embedded cards (e.g., embedded UICCs (eUICCs), which may be referred to as “eSIMs” or “eSIM cards”). In some embodiments (e.g., when the SIM includes an eUICC), one or more of the SIMs may implement embedded SIM (eSIM) functionality. In such embodiments, a single SIM(s) may execute multiple SIM applications. Each of the SIMs may include components such as a processor and / or memory, and instructions for executing the SIM / eSIM functionality may be stored in the memory and executed by the processor. In some embodiments, the UE 106 may include a combination of removable and fixed / non-removable smart cards (e.g., one or more eUICC cards implementing eSIM functionality), as appropriate. For example, the UE 106 may include two embedded SIMs, two removable SIMs, or a combination of one embedded SIM and one removable SIM.Various other SIM configurations are also contemplated.

[0079] As noted above, in some embodiments, the UE 106 may include two or more SIMs. Including two or more SIMs in the UE 106 may enable the UE 106 to support two different telephone numbers and may enable the UE 106 to communicate on two or more corresponding respective networks. For example, a first SIM may support a first RAT, such as LTE, and a second SIM 410 may support a second RAT, such as 5G NR. Of course, other implementations and RATs are possible. In some embodiments, if the UE 106 includes two SIMs, the UE 106 may support dual-SIM dual-active (DSDA) functionality. The DSDA functionality may enable the UE 106 to be simultaneously connected to two networks (and use two different RATs) or to simultaneously maintain two connections supported by two different SIMs on the same or different networks using the same or different RATs. The DSDA functionality may also enable the UE 106 to simultaneously receive voice calls or data traffic on either telephone number. In certain embodiments, the voice call may be packet-switched communication. In other words, a voice call may be received using Voice over LTE (VoLTE) technology and / or Voice over NR (VoNR) technology. In some embodiments, the UE 106 may support Dual SIM Dual Standby (DSDS) functionality. The DSDS functionality may allow either of two SIMs in the UE 106 to wait for a voice call and / or a data connection. In DSDS, when a call / data is established on one SIM, the other SIM becomes inactive. In some embodiments, the DSDx functionality (either DSDA or DSDS functionality) may be implemented by a single SIM (e.g., an eUICC) running multiple SIM applications for different multi-carrier beams and / or RATs.

[0080] As shown, SOC 400 may include processor(s) 402 capable of executing program instructions for communication device 106 and display circuitry 404 capable of performing graphics processing and providing display signals to display 460. Processor(s) 402 may be coupled to memory management unit (MMU) 440, which may be configured to receive addresses from processor(s) 402 and translate those addresses to locations in memory (e.g., memory 406, read-only memory (ROM) 450, NAND flash memory 410) and / or to locations in other circuits or devices, such as display circuitry 404, near / mid-range wireless communication circuitry 429, cellular communication circuitry 430, connector I / F 420, and / or display 460. MMU 440 may be configured to perform memory protection and page table translation or setup. In some embodiments, MMU 440 may be included as part of processor(s) 402.

[0081] As noted above, the communication device 106 may be configured to communicate using wireless and / or wired communication circuitry. The communication device 106 may be configured to perform methods for CSI extension in wireless communication systems, e.g., in 5G NR systems and beyond, as further described herein.

[0082] As described herein, the communications device 106 may include hardware and software components that implement the above-described features for the communications device 106 to communicate a power saving scheduling profile to a network. The processor 402 of the communications device 106 may be configured to implement some or all of the features described herein, for example, by executing program instructions stored on a memory medium (e.g., a non-transitory computer-readable memory medium). Alternatively (or in addition), the processor 402 may be configured as a programmable hardware element, such as an FPGA (field programmable gate array), or as an ASIC (application-specific integrated circuit). Alternatively (or in addition), the processor 402 of the communications device 106 may be configured to implement some or all of the features described herein in conjunction with one or more of the other components 400, 404, 406, 410, 420, 429, 430, 440, 445, 450, and 460.

[0083] Additionally, as described herein, processor 402 may include one or more processing elements. Accordingly, processor 402 may include one or more integrated circuits (ICs) configured to perform the functions of processor 402. Additionally, each integrated circuit may include a circuit (e.g., a first circuit, a second circuit, etc.) configured to perform the functions of processor(s) 402.

[0084] Further, as described herein, each of the cellular communication circuit 430 and the near / medium range wireless communication circuit 429 may include one or more processing elements. In other words, the cellular communication circuit 430 may include one or more processing elements, and similarly, the near / medium range wireless communication circuit 429 may include one or more processing elements. Thus, the cellular communication circuit 430 may include one or more integrated circuits (ICs) configured to perform the functions of the cellular communication circuit 430. In addition, each integrated circuit may include circuitry (e.g., a first circuit, a second circuit, etc.) configured to perform the functions of the cellular communication circuit 430. Similarly, the near / medium range wireless communication circuit 429 may include one or more ICs configured to perform the functions of the near / medium range wireless communication circuit 429. In addition, each integrated circuit may include circuitry (e.g., a first circuit, a second circuit, etc.) configured to perform the functions of the near / medium range wireless communication circuit 429. Figure 5: Block diagram of a cellular communication circuit

[0085] 5 shows an exemplary simplified block diagram of cellular communication circuitry, according to some embodiments. It should be noted that the block diagram of the cellular communication circuitry in FIG. 5 is only one example of possible cellular communication circuitry. According to embodiments, the cellular communication circuitry 530, which may be the cellular communication circuitry 430, may be included in a communication device, such as the communication device 106 described above. As noted above, the communication device 106 may be, among other devices, a user equipment (UE) device, a mobile device or mobile station, a wireless device or wireless base station, a desktop computer or computing device, a mobile computing device (e.g., a laptop, notebook, or portable computing device), a tablet, and / or a combination of devices.

[0086] The cellular communication circuitry 530 may be communicatively coupled (e.g., communicatively, directly or indirectly) to one or more antennas, such as antennas 435a-b and 436, as shown (in FIG. 4). In some embodiments, the cellular communication circuitry 530 may include dedicated receive chains (e.g., a first receive chain for LTE and a second receive chain for 5G NR) for multiple RATs (e.g., including a dedicated processor and / or radio and / or communicatively coupled, directly or indirectly to a dedicated processor and / or radio). For example, as shown in FIG. 5, the cellular communication circuitry 530 may include a modem 510 and a modem 520. The modem 510 may be configured for communication according to a first RAT, e.g., LTE or LTE-A, and the modem 520 may be configured for communication according to a second RAT, e.g., 5G NR.

[0087] As shown, the modem 510 may include one or more processors 512 and memory 516 in communication with the processor 512. The modem 510 may be in communication with a radio frequency (RF) front end 530. The RF front end 530 may include circuitry for transmitting and receiving wireless signals. For example, the RF front end 530 may include receive circuitry (RX) 532 and transmit circuitry (TX) 534. In some embodiments, the receive circuitry 532 may be in communication with a downlink (DL) front end 550, which may include circuitry for receiving wireless signals via an antenna 335a.

[0088] Similarly, the modem 520 may include one or more processors 522 and a memory 526 in communication with the processor 522. The modem 520 may be in communication with an RF front end 540. The RF front end 540 may include circuitry for transmitting and receiving wireless signals. For example, the RF front end 540 may include receive circuitry 542 and transmit circuitry 544. In some embodiments, the receive circuitry 542 may be in communication with a DL front end 560, which may include circuitry for receiving wireless signals via the antenna 335b.

[0089] In some embodiments, switch 570 may couple transmit circuitry 534 to an uplink (UL) front end 572. Additionally, switch 570 may couple transmit circuitry 544 to an UL front end 572. The UL front end 572 may include circuitry for transmitting wireless signals via antenna 336. Thus, when cellular communication circuitry 530 receives an instruction to transmit according to a first RAT (e.g., as supported via modem 510), switch 570 may be switched to a first state that enables modem 510 to transmit signals according to the first RAT (e.g., via a transmit chain that includes transmit circuitry 534 and UL front end 572). Similarly, when cellular communication circuitry 530 receives an instruction to transmit according to a second RAT (e.g., as supported via modem 520), switch 570 may be switched to a second state that enables modem 520 to transmit signals according to the second RAT (e.g., via a transmit chain that includes transmit circuitry 544 and UL front end 572).

[0090] In some embodiments, the cellular communication circuitry 530 may be configured to perform methods for CSI extension in wireless communication systems, e.g., in 5G NR systems and beyond, as further described herein.

[0091] As described herein, modem 510 may include hardware and software components for implementing the above features or for time-division multiplexing UL data for NSA NR operations, as well as various other techniques described herein. Processor 512 may be configured to implement some or all of the features described herein, for example, by executing program instructions stored on a memory medium (e.g., a non-transitory computer-readable memory medium). Alternatively (or in addition), processor 512 may be configured as a programmable hardware element, such as an FPGA (field programmable gate array), or as an ASIC (application-specific integrated circuit). Alternatively (or in addition), processor 512 may be configured to implement some or all of the features described herein in conjunction with one or more of other components 530, 532, 534, 550, 570, 572, 335, and 336.

[0092] Additionally, as described herein, processor 512 may include one or more processing elements. Accordingly, processor 512 may include one or more integrated circuits (ICs) configured to perform the functions of processor 512. Additionally, each integrated circuit may include circuitry (e.g., a first circuit, a second circuit, etc.) configured to perform the functions of processor 512.

[0093] As described herein, the modem 520 may include hardware and software components that implement the above features of CSI extension in wireless communication systems, e.g., in 5G NR systems and beyond, as well as various other techniques described herein. The processor 522 may be configured to implement some or all of the features described herein, for example, by executing program instructions stored in a memory medium (e.g., a non-transitory computer-readable memory medium). Alternatively (or in addition), the processor 522 may be configured as a programmable hardware element, such as an FPGA (field-programmable gate array), or as an ASIC (application-specific integrated circuit). Alternatively (or in addition), the processor 522, together with one or more of the other components 540, 542, 544, 550, 570, 572, 335, and 336, may be configured to implement some or all of the features described herein.

[0094] Additionally, as described herein, processor 522 may include one or more processing elements. Accordingly, processor 522 may include one or more integrated circuits (ICs) configured to perform the functions of processor 522. Additionally, each integrated circuit may include circuitry (e.g., a first circuit, a second circuit, etc.) configured to perform the functions of processor 522. Figures 6A, 6B, and 7: 5G Core Network Architecture - Interworking with Wi-Fi

[0095] In some embodiments, a 5G Core Network (CN) can be accessed via (or through) a cellular connection / interface (e.g., via a 3GPP communication architecture / protocol) and via (or through) a non-cellular connection / interface (e.g., a non-3GPP access architecture / protocol, such as a Wi-Fi connection). FIG. 6A illustrates an example 5G network architecture incorporating both 3GPP (e.g., cellular) and non-3GPP (e.g., non-cellular) access to the 5G CN, according to some embodiments. As shown in the figure, a user equipment device (e.g., UE 106) can access the 5G CN through both a radio access network (e.g., a RAN, such as a gNB 604, which may be a base station 102) and an access point, such as an AP 612. The AP 612 may include a connection to the Internet 600 as well as a connection to a Non-3GPP Interworking Function (N3IWF) 603 network entity. The N3IWF may include a connection to the 5G CN's Core Access and Mobility Management Function (AMF) 605. The AMF 605 may include an instance of a 5G Mobility Management (5G MM) function associated with the UE 106. In addition, the RAN (e.g., the gNB 604) may also have a connection to the AMF 605. Thus, the 5G CN may also support unified authentication for both connections and enable simultaneous registration of the UE 106 access via both the gNB 604 and the AP 612. As shown in the figure, the AMF 605 may include one or more functional entities associated with the 5G CN (e.g., a Network Slice Selection Function (NSSF) 620, a Short Message Service Function (SMSF) 622, an Application Function (AF) 624, a Unified Data Management (UDM) 626, a Policy Control Function (PCF) 628, and / or an Authentication Server Function (AUSF) 630). Note that these functional entities may also be supported by the Session Management Function (SMF) 606a and SMF 606b of the 5G CN. The AMF 605 may be connected to (or may communicate with) the SMF 606a.Additionally, the gNB 604 may communicate with (or be connected to) a User Plane Function (UPF) 608a, which may also communicate with the SMF 606a. Similarly, the N3IWF 603 may communicate with a UPF 608b, which may also communicate with the SMF 606b. Both UPFs may be in communication with a data network (e.g., DNs 610a and 610b) and / or the Internet 600 and an Internet Protocol (IP) Multimedia Subsystem / IP Multimedia Core Network Subsystem (IMS) core network 610.

[0096] 6B illustrates an example 5G network architecture incorporating both dual 3GPP (e.g., LTE and 5G NR) access and non-3GPP access to the 5G CN, according to some embodiments. As shown, a user equipment device (such as a UE 106) can access the 5G CN through both a radio access network (e.g., a RAN such as a gNB 604 or eNB 602, which may be a base station 102) and an access point such as an AP 612. The AP 612 may include a connection to the Internet 600 as well as a connection to an N3IWF 603 network entity. The N3IWF may include a connection to the 5G CN's AMF 605. The AMF 605 may include an instance of a 5G MM function associated with the UE 106. In addition, the RAN (e.g., a gNB 604) may also have a connection to the AMF 605. Thus, the 5G CN may support unified authentication for both connections and enable simultaneous registration of the UE 106 access via both the gNB 604 and the AP 612. Additionally, the 5G CN may support dual registration of UEs in both a legacy network (e.g., LTE via the eNB 602) and a 5G network (e.g., via the gNB 604). As shown, the eNB 602 may have a connection to a mobility management entity (MME) 642 and a serving gateway (SGW) 644. The MME 642 may have a connection to both the SGW 644 and the AMF 605. Additionally, the SGW 644 may have a connection to both the SMF 606a and the UPF 608a. As shown, the AMF 605 may include one or more functional entities associated with the 5G CN (e.g., the NSSF 620, the SMSF 622, the AF 624, the UDM 626, the PCF 628, and / or the AUSF 630). Note that the UDM 626 may also include a home subscriber server (HSS) function, and the PCF may also include a policy and charging rules function (PCRF). It is further noted that these functional entities may also be supported by the SMF 606a and SMF 606b of the 5G CN. The AMF 606 may be connected to (or may communicate with) the SMF 606a.Additionally, the gNB 604 may communicate with (or be connected to) the UPF 608a, which may also communicate with the SMF 606a. Similarly, the N3IWF 603 may communicate with the UPF 608b, which may also communicate with the SMF 606b. Both UPFs may communicate with the data network (e.g., DNs 610a and 610b) and / or the Internet 600 and the IMS core network 610.

[0097] It should be noted that in various embodiments, one or more of the above network entities may be configured to perform a method for CSI extension in a wireless communication system, e.g., in 5G NR systems and beyond, e.g., as further described herein.

[0098] FIG. 7 illustrates an example baseband processor architecture for a UE (e.g., UE 106), according to some embodiments. The baseband processor architecture 700 illustrated in FIG. 7 may be implemented on one or more radios (e.g., radios 429 and / or 430 described above) or modems (e.g., modems 510 and / or 520), as described above. As illustrated, a non-access stratum (NAS) 710 may include a 5G NAS 720 and a legacy NAS 750. The legacy NAS 750 may include a communication connection with a legacy access stratum (AS) 770. The 5G NAS 720 may include a communication connection with both a 5G AS 740 and a non-3GPP AS 730, as well as a communication connection with a Wi-Fi AS 732. The 5G NAS 720 may include functional entities associated with both access stratums. Thus, the 5G NAS 720 may include multiple 5G MM entities 726 and 728, and 5G session management (SM) entities 722 and 724. The legacy NAS 750 may include functional entities such as a short message service (SMS) entity 752, an evolved packet system (EPS) session management (ESM) entity 754, a session management (SM) entity 756, an EPS mobility management (EMM) entity 758, and a mobility management (MM) / GPRS mobility management (GMM) entity 760. Additionally, the legacy AS 770 may include functional entities such as an LTE AS 772, a UMTS AS 774, and / or a GSM / GPRS AS 776.

[0099] Thus, the baseband processor architecture 700 enables a common 5G-NAS for both 5G cellular and non-cellular (e.g., non-3GPP access). Note that, as shown in the figure, the 5G MM may maintain separate connection management and registration management state machines for each connection. In addition, a device (e.g., UE 106) may register with a single PLMN (e.g., 5G CN) using 5G cellular access as well as non-cellular access. Furthermore, a device may be in a connected state in one access and an idle state in another access, or vice versa. Finally, there may be common 5G-MM procedures (e.g., registration, deregistration, identification, authentication, etc.) for both accesses.

[0100] It should be noted that in various embodiments, one or more of the above functional entities of the 5G NAS and / or 5G AS may be configured to perform a method for CSI extension in a wireless communication system, e.g., in a 5G NR system and beyond, e.g., as further described herein. Quasi-Collocation (QCL)

[0101] 3GPP introduced the quasi-colocation (QCL) concept to assist UEs in channel estimation, frequency offset error estimation, and synchronization procedures. Two antenna ports may be considered quasi-collocated (and / or quasi-colocated) when the characteristics of the channel through which symbols on a first one of the two antenna ports are carried can be inferred from the channel through which symbols on a second one of the two antenna ports are carried. For example, when a UE knows that wireless channels corresponding to two different antenna ports are QCL'd with respect to Doppler shift, the UE may determine the Doppler shift for the first one of the two antenna ports and then apply the result to both antenna ports for channel estimation, allowing the UE to calculate the Doppler shift separately for the two different antenna ports. It should be noted that wireless channel characteristics that may be common across antenna ports may include Doppler spread, Doppler shift, average delay, delay spread, average gain, and / or spatial receiver parameters. In particular, it should be noted that the spatial receiver parameters can refer to beamforming characteristics of the downlink received signal, such as the dominant angle of arrival and / or the average angle of arrival at the UE. Furthermore, it should be noted that 3GPP defines four types of QCLs: QCL-TypeA, QCL-TypeB, QCL-TypeC, and QCL-TypeD. QCL-TypeA indicates that the Doppler shift, Doppler spread, mean delay, and mean spread may be common across antenna ports. QCL-TypeB indicates that the Doppler shift and Doppler spread may be common across antenna ports. QCL-TypeC indicates that the mean delay and mean spread may be common across antenna ports. Finally, QCL-TypeD indicates that the spatial receiver parameters may be common across antenna ports. CSI Extensions

[0102] In current implementations of 5G NR, various schemes have been specified / designed for multiple transmit / receive point (multi-TRP) operation, for example, as specified by 3GPP Release 16. For example, multi-DCI and single-DCI-based multi-TRP operation are defined. In particular, for single-DCI-based multi-TRP, a spatial domain multiplexing (SDM) scheme with a single transport block, a frequency domain multiplexing (FDM) scheme with a single transport block, an FDM scheme with a single transport block, a time domain multiplexing (TDM) scheme with intra-slot repetition, and a TDM scheme with inter-slot repetition are defined. However, as of 3GPP Release 16, no channel state information (CSI) reference signal (CSI-RS) processing extensions are specified. Therefore, 3GPP Release 16 does not enable the execution of explicit interference hypothesis tests to optimize the precoder for each TRP or for efficient switching between single-TRP and multi-TRP operation.

[0103] Additionally, as part of 3GPP Release 17 development, CSI-RS enhancements have primarily focused on non-coherent joint transmission (NCJT) schemes (e.g., SDM schemes with a single transport block) for single DCI-based multi-TRP operation. For example, it has been agreed that in the same CSI-ReportConfig, a UE can be configured to report either single-TRP measurements, multi-TRP measurements, or both. Furthermore, for channel measurement resource (CMR) configuration, in the same CSI-RS resource set, some resources may be configured for the first TRP measurement, some resources may be configured for the second TRP measurement, and some resource pairs may be configured for multi-TRP measurements. Furthermore, for interference measurement resource (IMR), zero power (ZP) IMR (e.g., CSI interference measurement (CSI-IM)) is supported, but non-zero power (NZP) IMR is not.

[0104] Additionally, in some cases, a UE may be required to support reporting zero, one, or two CSIs associated with a single TRP measurement hypothesis and one CSI associated with the NCJT measurement hypothesis for CSI reporting associated with a multi-TRP / panel NCJT measurement hypothesis configured with a single CSI reporting configuration. However, when a UE is configured to report one CSI associated with a single TRP measurement hypothesis, it is undefined which CSI associated with the single TRP the UE should report. Similarly, when a UE is configured to report zero CSI associated with a single TRP measurement hypothesis but is also configured with "sharedCMR" via the CSI-RS-ReportConfig parameter, it is undefined which CSI the UE should report.

[0105] Embodiments described herein provide systems, methods, and mechanisms for CSI extension in wireless communication systems, including systems, methods, and mechanisms for quasi-co-location (QCL) configurations for multi-TRP CSI and CSI reporting configurations to support reporting of single-TRP and multi-TRP measurements in a single reporting instance.

[0106] For example, to extend CSI for multi-TRP operation, an extended MAC-CE (e.g., as shown in FIG. 8) may be introduced to configure QCL information for each semi-persistent (SP) non-zero power (NZP) CSI-RS resource in a semi-persistent (SP) NZP-CSI-RS resource set. Thus, if an NZP-CSI-RS resource set is configured with N channel measurement resource (CMR) pairs, k1 CMRs in the first group and k2 CMRs in the second group, then 2 * For an NZP-CSI-RS resource set corresponding to N+k1+k2 NZP-CSI-RS resources, a total of 2 *N+k1+k2 transmission control indicator (TCI) states can be configured. The TCI states can be carried in an enhanced MAC-CE. Figure 8 illustrates an example of a MAC-CE, according to some embodiments. As illustrated, the MAC-CE can include various fields, such as A / D, which can indicate activation and / or deactivation of an SP NZP-CS-RS resource set; Serving Cell ID, which can indicate a serving cell identifier (ID); BWP ID, which can indicate an ID of a bandwidth portion (BWP); R, which can indicate one or more reserved bits; and IM, which can indicate whether SP CSI-IM resources are included in the MAC-CE. In addition, if SP CSI-IM resources are included in the MAC-CE, the MAC-CE can also include an SP CSI-IM Resource Set ID field, which can indicate the ID of the SP CSI-IM resource set. Furthermore, the MAC-CE can include an SP CSI-RS Resource Set ID, which can indicate the ID of the SP CSI-RS resource set. In addition, the MAC-CE may include 2N TCI state IDs (e.g., TCI state ID_{0,0} to TCI state ID_{N-1,1}) for N CMR pairs for multi-TRP CSI, k1 TCI state IDs (e.g., TCI state ID_{0} to TCI state ID_{k1-1}) for k1 TCIs of the first CMR group for single TRP CSI, and k2 TCI state IDs (e.g., TCI state ID_{k1} to TCI state ID_{k1+k2-1}) for k2 TCIs of the second CMR group for single TRP CSI.

[0107] Furthermore, to expand the CSI for multi-TRP operation for aperiodic CSI, the interpretation of the list of QCL information in the CSI-AssociatedReportConfigInfo parameter may be reinterpreted. For example, the first 2N TCI state IDs may be configured for 2N CMRs in N CMR pairs for multi-TRP measurements configured in the corresponding NZP-CSI-RS resource set. Then, the next k1 TCI state IDs may be configured for k1 CMRs in a first CMR group for a first single-TRP measurement in the corresponding NZP-CSI-RS resource set. Furthermore, the next k2 TCI state IDs may be configured for k2 CMRs in a second CMR group for a second single-TRP measurement in the corresponding NZP-CSI-RS resource set.

[0108] Additionally and / or alternatively, additional lists of QCL information may be added to the CSI-AssociatedReportConfigInfo parameter. For example, FIG. 9 illustrates an example of a CSI-AssociatedReprotConfigInfo parameter according to some embodiments. As shown, in addition to qcl-info, which has a size from 1 to the maximum number of aperiodic CSI-RS resources per set (e.g., maxNrofAP-CSI-RS-ResourcesPerSet), the CSI-AssociatedReprotConfigInfo parameter may also include a qcl-info-mTRP parameter. The qcl-info-mTRP parameter may have a size from 1 to the maximum number of aperiodic CSI-RS resources per set for multi-TRP. The qcl-info-mTRP parameter may be used to configure the QCL for a CMR pair configured for multi-TRP measurements. Note that the qcl-info-mTRP parameter may include (or contain) a list of 2N TCI state IDs for 2N CMRs in N CMR pairs for a multi-TRP measurement on the corresponding NZP-CSI-RS resource set. Furthermore, the (traditional) qcl-info may be used to configure QCLs for k1 + k2 CMRs for a single TRP measurement. Thus, the first k1 TCI state IDs may be configured for k1 CMRs in a first CMR group for a first single TRP measurement on the corresponding NZP-CSI-RS resource set, and the next k2 TCI state IDs may be configured for k2 CMRs in a second CMR group for a second single TRP measurement on the corresponding NZP-CSI-RS resource set.

[0109] Furthermore, for any multi-TRP CSI, e.g., periodic, semi-persistent, and / or aperiodic, the QCL configuration for frequency range 2 (FR2) may not require the UE to activate more than two antenna panels for multi-TRP measurements (e.g., the UE may not require simultaneous reception of more than two beams). For example, in some cases, a CMR in a CMR pair for multi-TRP measurements may not be configured with the same QCL-TypeD (e.g., spatial receiver parameters) as a CMR in another CMR pair for multi-TRP measurements. Note that being configured with the same QCL-TypeD may at least indicate that the CMRs may be configured to be quasi-colocated with the same reference signal for TypeD (e.g., spatial receiver parameters).

[0110] Similarly, for any multi-TRP CSI, including both multi-TRP and single-TRP measurements, e.g., periodic, semi-persistent, and / or aperiodic, the QCL configuration for frequency range 2 (FR2) may not require the UE to activate more than one antenna panel (e.g., require the UE to simultaneously receive two beams) without UE confirmation for multi-TRP and single-TRP measurements. Note that UE confirmation may be in the form of reported UE capabilities. For example, in some cases, a CMR in a CMR pair for multi-TRP measurements may not be configured with the same QCL-Type D (e.g., spatial receiver parameters) as a CMR in a CMR group for single-TRP measurements unless the UE reports its capability to perform such measurements (e.g., reports that it may be capable of and / or desire multi-antenna panel activation). Note that being configured with the same QCL-Type D may at least indicate that the CMRs may be configured to be quasi-colocated with the same reference signal with respect to Type D (e.g., with respect to spatial receiver parameters).

[0111] In some cases, for a CSI report associated with multiple TRP / panel NCJT measurement hypotheses configured by a single CSI reporting configuration, a UE configured to report one CSI associated with a single TRP measurement hypothesis along with CSI for the multiple TRP hypotheses may select a first CMR group for the single TRP measurement, may determine which CMR group is selected based on a configuration in the CSI-RS reporting configuration (e.g., in the CSI-RS-ReportConfig parameters), and / or may measure both CMR groups and report the "best" single TRP hypothesis across both CMR groups (e.g., across both TRPs). In other words, when CSI-RS-ReportConfig is configured with X=1, selecting a CMR group for a single TRP hypothesis may include the UE selecting a first CMR group for the single TRP measurement, the UE selecting a CMR group based on an explicit configuration via CSI-RS-ReportConfig, and / or the UE selecting the best single TRP hypothesis based on measurements across both TRPs (e.g., both CMR groups). Note that to support reporting of single-TRP and multi-TRP measurements in a single reporting instance, the CSI reporting configuration, e.g., the CSI-RS-ReportConfig parameter, may include an NZP-CSI-RS-ResourceSet parameter configured with N CMR pairs for multi-TRP measurements and two CMR groups for single-TRP measurements. Each CMR group may correspond to a different TRP, and / or "sharedCMR" may be configured.

[0112] In some cases, for a CSI report associated with a multi-TRP / panel NCJT measurement hypothesis configured by a single CSI reporting setting, a UE configured to report zero CSI associated with a single TRP measurement hypothesis along with CSI for the multi-TRP hypothesis for which "sharedCMR" is configured may consider and / or treat such a configuration as an error case (e.g., X=0 cannot be configured with "sharedCMR") and may feed back and / or report a multi-TRP CSI measurement without a single TRP CSI measurement, and / or may feed back and / or report both a multi-TRP CSI measurement and a single TRP CSI measurement, where the single TRP CSI measurement is from 2N CMRs configured in N CMR pairs. In other words, when a CSI reporting configuration, e.g., a CSI-RS-ReportConfig parameter, includes an NZP-CSI-RS-ResourceSet parameter configured with multi-TRP measurements, "sharedCMR", and N CMR pairs for X=0, the selection of a CMR group may include the UE determining that the configuration is an error case (e.g., X=0 cannot be configured with "sharedCMR"), the UE reporting feedback only for multi-TRP CSI measurements (e.g., no single-TRP CSI measurements), and / or the UE reporting feedback for both multi-TRP CSI measurements and single-TRP CSI measurements, where the single-TRP measurements are from the 2N CMRs configured in the N CMR pairs.

[0113] Figures 10, 11, 12, 13, and 14 illustrate block diagrams of example methods for CSI extension in a wireless communication system, including methods for QCL configuration of multi-TRP CSI and reporting of single-TRP and multi-TRP measurements in a single reporting instance, according to embodiments. The methods illustrated in Figures 10, 11, 12, 13, and 14 may be used in conjunction with any of the systems, methods, or devices illustrated in the figures, among other devices. In various embodiments, some of the illustrated method elements may be performed simultaneously, in a different order than illustrated, or omitted. Additional method elements may be performed as needed.

[0114] Referring to FIG. 10, as shown, this method for configuring QCL information of CSI-RS resources for multiple TRPs may operate as follows.

[0115] At 1002, a UE, such as UE 106, may receive a MAC CE from a network (e.g., from a base station, such as base station 102, of the network) indicating QCL information for CSI-RS resources in a semi-persistent CSI-RS resource set. The MAC CE may include at least an indication of the transmission configuration indicator (TCI) state of the single-TRP and multi-TRP corresponding to the CSI-RS resources in the semi-persistent CSI-RS resource set. The MAC CE may also include a field indicating activation or deactivation of the semi-persistent CSI-RS resource set and / or a field indicating whether semi-persistent CSI-Interference Measurement (CSI-IM) resources are included in the MAC CE. Additionally, the MAC CE may include 2N+k1+k2 TCI states corresponding to 2N+k1+k2 CSI-RS resources, which may be for N channel measurement resource (CMR) pairs for multi-TRP CSI-RS measurements, k1 CMRs in a first group for a first single-TRP measurement, and k2 CMRs in a second group for a second single-TRP measurement. Further, the semi-persistent CSI-RS resource set may be a non-zero power (NZP) semi-persistent CSI-RS resource set.

[0116] At 1004, the UE may receive a CSI reporting configuration from the network. The CSI reporting configuration may indicate which CSI the UE should report.

[0117] At 1006, the UE may perform CSI measurements using the QCL information and based on the CSI reporting configuration. In other words, the UE may perform CSI measurements using the QCL information indicated by the MAC CE based at least in part on the CSI reporting configuration. In addition, the UE may report the CSI measurements to the network.

[0118] In some cases, the UE may receive a radio resource control (RRC) message from the network. The RRC message may include parameters for configuring a QCL for aperiodic CSI measurements. The parameters may include a QCL information list. The QCL information list may include TCI state identifiers (IDs) for multi-TRP CSI measurements and single-TRP measurements. In addition, the UE may interpret the first 2N TCI state IDs in the QCL information list as configured for 2N channel measurement resources (CMRs) in N CMR pairs for multi-TRP CSI measurements configured in the corresponding CSI-RS resource set configured for aperiodic CSI measurements. Furthermore, the UE may interpret the next k1 TCI state IDs in the QCL information list as configured for k1 CMRs in a first CMR group for a first single-TRP CSI measurement configured in the corresponding CSI-RS resource set configured for aperiodic CSI measurements. In addition, the UE may interpret the next k2 TCI state IDs in the QCL information list as configured for the k2 CMRs in the second CMR group for the second single-TRP CSI measurements configured in the corresponding CSI-RS resource set configured for aperiodic CSI measurements.

[0119] In some cases, the UE may receive a radio resource control (RRC) message. The RRC message may include parameters for configuring a QCL for aperiodic CSI measurements. The parameters may include at least two QCL information lists. A first QCL information list of the at least two QCL information lists may include and / or be associated with a TCI state identifier (ID) for single-TRP CSI measurements. A second QCL information list of the at least two QCL information lists may include and / or be associated with a TCI state ID for multi-TRP measurements. The second QCL information list may include 2N TCI state IDs that may be configured for 2N channel measurement resources (CMRs) in N CMR pairs for multi-TRP CSI measurements configured in corresponding CSI-RS resource sets configured for aperiodic CSI measurements. In addition, the first QCL information list may include k1 + k2 TCI state IDs configured for k1 + k2 single-TRP measurements configured in corresponding CSI-RS resource sets configured for aperiodic CSI measurements. The first k1 TCI state IDs in the first QCL information list may be configured for k1 CMRs in a first CMR group for a first single-TRP CSI measurement configured in a corresponding CSI-RS resource set configured for aperiodic CSI measurements. The next k2 TCI state IDs in the first QCL information list may be configured for k2 CMRs in a second CMR group for a second single-TRP CSI measurement configured in a corresponding CSI-RS resource set configured for aperiodic CSI measurements. In addition, the UE may perform CSI measurements using at least two QCL information lists.

[0120] In some cases, a channel measurement resource (CMR) in a CMR pair for a multi-TRP CSI measurement may not be configured with the same spatial receiver parameters as any other CMR in another CMR pair for a multi-TRP CSI measurement.

[0121] In some cases, when the UE does not indicate support for multi-antenna panel activation, the channel measurement resources (CMRs) in a CMR pair for multi-TRP CSI measurements may not be configured with the same spatial receiver parameters as any CMR in a CMR group for single-TRP CSI measurements.

[0122] In some cases, when a UE indicates support for multi-antenna panel activation, the channel measurement resources (CMRs) in a CMR pair for multi-TRP CSI measurements may be configurable with the same spatial receiver parameters as the CMRs in a CMR group for single-TRP CSI measurements.

[0123] In some cases, the UE may receive a CSI reporting configuration from the network (e.g., from a base station, such as base station 102, of the network). The CSI reporting configuration may configure the UE to report one CSI associated with a single-TRP CSI measurement hypothesis along with CSI for multi-TRP CSI measurement hypotheses. Further, the UE may select a CMR group for the single TRP measurement based at least in part on at least one selection criterion. In some cases, selecting a CMR group for the single TRP measurement based on the at least one selection criterion may include the UE selecting a first CMR group for the single TRP measurement. In some cases, selecting a CMR group for the single TRP measurement based on the at least one selection criterion may include the UE determining which CMR group to select based on a configuration in the CSI-RS reporting configuration. In some cases, selecting a CMR group for the single TRP measurement based on the at least one selection criterion may include the UE measuring both CMR groups and reporting the best single TRP hypothesis across both CMR groups.

[0124] In some cases, the UE may receive a CSI reporting configuration. The CSI reporting configuration may configure the UE to report zero CSI associated with a single-TRP measurement hypothesis along with CSI for a multi-TRP hypothesis for which a shared CMR is configured. The UE may interpret the CSI reporting configuration based at least in part on at least one interpretation criterion. In some cases, interpreting the CSI reporting configuration based on the at least one interpretation criterion may include the UE treating such a configuration as an error case. In some cases, interpreting the CSI reporting configuration based on the at least one interpretation criterion may include the UE reporting a multi-TRP CSI measurement without any single-TRP CSI measurements. In some cases, interpreting the CSI reporting configuration based on the at least one interpretation criterion may include the UE reporting a multi-TRP CSI measurement and a single-TRP CSI measurement. The single-TRP CSI measurements may be from 2N CMRs configured in N CMR pairs.

[0125] Referring to FIG. 11, as shown, this method for configuring QCL information of CSI-RS resources for multiple TRPs may operate as follows.

[0126] At 1102, a UE, such as UE 106, may receive a radio resource control (RRC) message from a network (e.g., from a base station, such as base station 102, of the network). The RRC message may include parameters for configuring a QCL for aperiodic CSI measurements. The parameters may include a QCL information list. The QCL information list may include a TCI state identifier (ID) for multi-TRP CSI measurements and single-TRP measurements.

[0127] At 1104, the UE may interpret the first 2N TCI state IDs in the QCL information list as configured for 2N channel measurement resources (CMRs) in N CMR pairs for multi-TRP CSI measurements configured in the corresponding CSI-RS resource set configured for aperiodic CSI measurements. Further, the UE may interpret the next k1 TCI state IDs in the QCL information list as configured for k1 CMRs in a first CMR group for a first single-TRP CSI measurement configured in the corresponding CSI-RS resource set configured for aperiodic CSI measurements. In addition, the UE may interpret the next k2 TCI state IDs in the QCL information list as configured for k2 CMRs in a second CMR group for a second single-TRP CSI measurement configured in the corresponding CSI-RS resource set configured for aperiodic CSI measurements.

[0128] In some cases, the UE may receive a MAC CE from the network indicating QCL information for CSI-RS resources in a semi-persistent CSI-RS resource set. The MAC CE may include at least an indication of the transmission configuration indicator (TCI) states of the single-TRP and multi-TRP corresponding to the CSI-RS resources in the semi-persistent CSI-RS resource set. The MAC CE may also include a field indicating activation or deactivation of the semi-persistent CSI-RS resource set and / or a field indicating whether semi-persistent CSI-Interference Measurement (CSI-IM) resources are included in the MAC CE. In addition, the MAC CE may include 2N+k1+k2 TCI states corresponding to 2N+k1+k2 CSI-RS resources, where the 2N+k1+k2 CSI-RS resources may be for N channel measurement resource (CMR) pairs for multi-TRP CSI-RS measurements, k1 CMRs in a first group for the first single-TRP measurement, and k2 CMRs in a second group for the second single-TRP measurement. Furthermore, the semi-persistent CSI-RS resource set may be a non-zero power (NZP) semi-persistent CSI-RS resource set. In addition, the UE may receive a CSI reporting configuration from the network. The CSI reporting configuration may indicate which CSI the UE should report. Furthermore, the UE may use QCL information to perform CSI measurements based on the CSI reporting configuration. In other words, the UE may perform CSI measurements using QCL information indicated by the MAC CE based at least in part on the CSI reporting configuration. In addition, the UE may report the CSI measurements to the network.

[0129] In some cases, a channel measurement resource (CMR) in a CMR pair for a multi-TRP CSI measurement may not be configured with the same spatial receiver parameters as any other CMR in another CMR pair for a multi-TRP CSI measurement.

[0130] In some cases, when the UE does not indicate support for multi-antenna panel activation, the channel measurement resources (CMRs) in a CMR pair for multi-TRP CSI measurements may not be configured with the same spatial receiver parameters as any CMR in a CMR group for single-TRP CSI measurements.

[0131] In some cases, when a UE indicates support for multi-antenna panel activation, the channel measurement resources (CMRs) in a CMR pair for multi-TRP CSI measurements may be configurable with the same spatial receiver parameters as the CMRs in a CMR group for single-TRP CSI measurements.

[0132] In some cases, the UE may receive a CSI reporting configuration from the network (e.g., from a base station, such as base station 102, of the network). The CSI reporting configuration may configure the UE to report one CSI associated with a single-TRP CSI measurement hypothesis along with CSI for multi-TRP CSI measurement hypotheses. Further, the UE may select a CMR group for the single TRP measurement based at least in part on at least one selection criterion. In some cases, selecting a CMR group for the single TRP measurement based on the at least one selection criterion may include the UE selecting a first CMR group for the single TRP measurement. In some cases, selecting a CMR group for the single TRP measurement based on the at least one selection criterion may include the UE determining which CMR group to select based on a configuration in the CSI-RS reporting configuration. In some cases, selecting a CMR group for the single TRP measurement based on the at least one selection criterion may include the UE measuring both CMR groups and reporting the best single TRP hypothesis across both CMR groups.

[0133] In some cases, the UE may receive a CSI reporting configuration. The CSI reporting configuration may configure the UE to report zero CSI associated with a single-TRP measurement hypothesis along with CSI for a multi-TRP hypothesis for which a shared CMR is configured. The UE may interpret the CSI reporting configuration based at least in part on at least one interpretation criterion. In some cases, interpreting the CSI reporting configuration based on the at least one interpretation criterion may include the UE treating such a configuration as an error case. In some cases, interpreting the CSI reporting configuration based on the at least one interpretation criterion may include the UE reporting a multi-TRP CSI measurement without any single-TRP CSI measurements. In some cases, interpreting the CSI reporting configuration based on the at least one interpretation criterion may include the UE reporting a multi-TRP CSI measurement and a single-TRP CSI measurement. The single-TRP CSI measurements may be from 2N CMRs configured in N CMR pairs.

[0134] Referring to FIG. 12, as shown, this method for configuring QCL information of CSI-RS resources for multiple TRPs may operate as follows.

[0135] At 1202, a UE, such as UE 106, may receive a radio resource control (RRC) message from a network (e.g., from a base station, such as base station 102, of the network). The RRC message may include parameters for configuring QCLs for aperiodic CSI measurements. The parameters may include at least two QCL information lists. A first QCL information list of the at least two QCL information lists may include and / or be associated with a TCI state identifier (ID) for single-TRP CSI measurements. A second QCL information list of the at least two QCL information lists may include and / or be associated with a TCI state ID for multi-TRP measurements. The second QCL information list may include 2N TCI state IDs that may be configured for 2N channel measurement resources (CMRs) in N CMR pairs for multi-TRP CSI measurements configured in corresponding CSI-RS resource sets configured for aperiodic CSI measurements. Additionally, the first QCL information list may include k1+k2 TCI state IDs configured for k1+k2 single-TRP measurements configured in the corresponding CSI-RS resource set configured for aperiodic CSI measurements. The first k1 TCI state IDs in the first QCL information list may be configured for k1 CMRs in a first CMR group for the first single-TRP CSI measurement configured in the corresponding CSI-RS resource set configured for aperiodic CSI measurements. The next k2 TCI state IDs in the first QCL information list may be configured for k2 CMRs in a second CMR group for the second single-TRP CSI measurement configured in the corresponding CSI-RS resource set configured for aperiodic CSI measurements.

[0136] At 1204, the UE may perform CSI measurements using the at least two QCL information lists.

[0137] In some cases, the UE may receive a MAC CE from the network indicating QCL information for CSI-RS resources in a semi-persistent CSI-RS resource set. The MAC CE may include at least an indication of the transmission configuration indicator (TCI) states of the single-TRP and multi-TRP corresponding to the CSI-RS resources in the semi-persistent CSI-RS resource set. The MAC CE may also include a field indicating activation or deactivation of the semi-persistent CSI-RS resource set and / or a field indicating whether semi-persistent CSI-Interference Measurement (CSI-IM) resources are included in the MAC CE. In addition, the MAC CE may include 2N+k1+k2 TCI states corresponding to 2N+k1+k2 CSI-RS resources, where the 2N+k1+k2 CSI-RS resources may be for N channel measurement resource (CMR) pairs for multi-TRP CSI-RS measurements, k1 CMRs in a first group for the first single-TRP measurement, and k2 CMRs in a second group for the second single-TRP measurement. Furthermore, the semi-persistent CSI-RS resource set may be a non-zero power (NZP) semi-persistent CSI-RS resource set. In addition, the UE may receive a CSI reporting configuration from the network. The CSI reporting configuration may indicate which CSI the UE should report. Furthermore, the UE may use QCL information to perform CSI measurements based on the CSI reporting configuration. In other words, the UE may perform CSI measurements using QCL information indicated by the MAC CE based at least in part on the CSI reporting configuration. In addition, the UE may report the CSI measurements to the network.

[0138] In some cases, a channel measurement resource (CMR) in a CMR pair for a multi-TRP CSI measurement may not be configured with the same spatial receiver parameters as any other CMR in another CMR pair for a multi-TRP CSI measurement.

[0139] In some cases, when the UE does not indicate support for multi-antenna panel activation, the channel measurement resources (CMRs) in a CMR pair for multi-TRP CSI measurements may not be configured with the same spatial receiver parameters as any CMR in a CMR group for single-TRP CSI measurements.

[0140] In some cases, when a UE indicates support for multi-antenna panel activation, the channel measurement resources (CMRs) in a CMR pair for multi-TRP CSI measurements may be configurable with the same spatial receiver parameters as the CMRs in a CMR group for single-TRP CSI measurements.

[0141] In some cases, the UE may receive a CSI reporting configuration from the network (e.g., from a base station, such as base station 102, of the network). The CSI reporting configuration may configure the UE to report one CSI associated with a single-TRP CSI measurement hypothesis along with CSI for multi-TRP CSI measurement hypotheses. Further, the UE may select a CMR group for the single TRP measurement based at least in part on at least one selection criterion. In some cases, selecting a CMR group for the single TRP measurement based on the at least one selection criterion may include the UE selecting a first CMR group for the single TRP measurement. In some cases, selecting a CMR group for the single TRP measurement based on the at least one selection criterion may include the UE determining which CMR group to select based on a configuration in the CSI-RS reporting configuration. In some cases, selecting a CMR group for the single TRP measurement based on the at least one selection criterion may include the UE measuring both CMR groups and reporting the best single TRP hypothesis across both CMR groups.

[0142] In some cases, the UE may receive a CSI reporting configuration. The CSI reporting configuration may configure the UE to report zero CSI associated with a single-TRP measurement hypothesis along with CSI for a multi-TRP hypothesis for which a shared CMR is configured. The UE may interpret the CSI reporting configuration based at least in part on at least one interpretation criterion. In some cases, interpreting the CSI reporting configuration based on the at least one interpretation criterion may include the UE treating such a configuration as an error case. In some cases, interpreting the CSI reporting configuration based on the at least one interpretation criterion may include the UE reporting a multi-TRP CSI measurement without any single-TRP CSI measurements. In some cases, interpreting the CSI reporting configuration based on the at least one interpretation criterion may include the UE reporting a multi-TRP CSI measurement and a single-TRP CSI measurement. The single-TRP CSI measurements may be from 2N CMRs configured in N CMR pairs.

[0143] Referring to FIG. 13, as shown, this method for reporting of single-TRP and multi-TRP measurements in a single reporting instance may operate as follows.

[0144] At 1302, a UE, such as UE 106, may receive a CSI reporting configuration from a network (e.g., from a base station of the network, such as base station 102). The CSI reporting configuration may configure the UE to report one CSI associated with a single-TRP CSI measurement hypothesis along with CSI for multiple-TRP CSI measurement hypotheses.

[0145] At 1304, the UE may select a CMR group for the single TRP measurement based at least in part on at least one selection criterion. In some cases, selecting a CMR group for the single TRP measurement based on the at least one selection criterion may include the UE selecting a first CMR group for the single TRP measurement. In some cases, selecting a CMR group for the single TRP measurement based on the at least one selection criterion may include the UE determining which CMR group to select based on a configuration in the CSI-RS reporting configuration. In some cases, selecting a CMR group for the single TRP measurement based on the at least one selection criterion may include the UE measuring both CMR groups and reporting a best single TRP hypothesis across both CMR groups.

[0146] In some cases, the UE may receive a MAC CE from the network indicating QCL information for CSI-RS resources in a semi-persistent CSI-RS resource set. The MAC CE may include at least an indication of the transmission configuration indicator (TCI) states of the single-TRP and multi-TRP corresponding to the CSI-RS resources in the semi-persistent CSI-RS resource set. The MAC CE may also include a field indicating activation or deactivation of the semi-persistent CSI-RS resource set and / or a field indicating whether semi-persistent CSI-Interference Measurement (CSI-IM) resources are included in the MAC CE. In addition, the MAC CE may include 2N+k1+k2 TCI states corresponding to 2N+k1+k2 CSI-RS resources, where the 2N+k1+k2 CSI-RS resources may be for N channel measurement resource (CMR) pairs for multi-TRP CSI-RS measurements, k1 CMRs in a first group for the first single-TRP measurement, and k2 CMRs in a second group for the second single-TRP measurement. Furthermore, the semi-persistent CSI-RS resource set may be a non-zero power (NZP) semi-persistent CSI-RS resource set. In addition, the UE may receive a CSI reporting configuration from the network. The CSI reporting configuration may indicate which CSI the UE should report. Furthermore, the UE may use QCL information to perform CSI measurements based on the CSI reporting configuration. In other words, the UE may perform CSI measurements using QCL information indicated by the MAC CE based at least in part on the CSI reporting configuration. In addition, the UE may report the CSI measurements to the network.

[0147] In some cases, the UE may receive a radio resource control (RRC) message from the network. The RRC message may include parameters for configuring a QCL for aperiodic CSI measurements. The parameters may include a QCL information list. The QCL information list may include TCI state identifiers (IDs) for multi-TRP CSI measurements and single-TRP measurements. In addition, the UE may interpret the first 2N TCI state IDs in the QCL information list as configured for 2N channel measurement resources (CMRs) in N CMR pairs for multi-TRP CSI measurements configured in the corresponding CSI-RS resource set configured for aperiodic CSI measurements. Furthermore, the UE may interpret the next k1 TCI state IDs in the QCL information list as configured for k1 CMRs in a first CMR group for a first single-TRP CSI measurement configured in the corresponding CSI-RS resource set configured for aperiodic CSI measurements. In addition, the UE may interpret the next k2 TCI state IDs in the QCL information list as configured for the k2 CMRs in the second CMR group for the second single-TRP CSI measurements configured in the corresponding CSI-RS resource set configured for aperiodic CSI measurements.

[0148] In some cases, the UE may receive a radio resource control (RRC) message. The RRC message may include parameters for configuring a QCL for aperiodic CSI measurements. The parameters may include at least two QCL information lists. A first QCL information list of the at least two QCL information lists may include and / or be associated with a TCI state identifier (ID) for single-TRP CSI measurements. A second QCL information list of the at least two QCL information lists may include and / or be associated with a TCI state ID for multi-TRP measurements. The second QCL information list may include 2N TCI state IDs that may be configured for 2N channel measurement resources (CMRs) in N CMR pairs for multi-TRP CSI measurements configured in a corresponding CSI-RS resource set. In addition, the first QCL information list may include k1 + k2 TCI state IDs configured for k1 + k2 single-TRP measurements configured in a corresponding CSI-RS resource set configured for aperiodic CSI measurements. The first k1 TCI state IDs in the first QCL information list may be configured for k1 CMRs in a first CMR group for a first single-TRP CSI measurement configured in a corresponding CSI-RS resource set configured for aperiodic CSI measurements. The next k2 TCI state IDs in the first QCL information list may be configured for k2 CMRs in a second CMR group for a second single-TRP CSI measurement configured in a corresponding CSI-RS resource set configured for aperiodic CSI measurements. In addition, the UE may perform CSI measurements using at least two QCL information lists.

[0149] In some cases, a channel measurement resource (CMR) in a CMR pair for a multi-TRP CSI measurement may not be configured with the same spatial receiver parameters as any other CMR in another CMR pair for a multi-TRP CSI measurement.

[0150] In some cases, when the UE does not indicate support for multi-antenna panel activation, the channel measurement resources (CMRs) in a CMR pair for multi-TRP CSI measurements may not be configured with the same spatial receiver parameters as any CMR in a CMR group for single-TRP CSI measurements.

[0151] In some cases, when a UE indicates support for multi-antenna panel activation, the channel measurement resources (CMRs) in a CMR pair for multi-TRP CSI measurements may be configurable with the same spatial receiver parameters as the CMRs in a CMR group for single-TRP CSI measurements.

[0152] In some cases, the UE may receive a CSI reporting configuration. The CSI reporting configuration may configure the UE to report zero CSI associated with a single-TRP measurement hypothesis along with CSI for a multi-TRP hypothesis for which a shared CMR is configured. The UE may interpret the CSI reporting configuration based at least in part on at least one interpretation criterion. In some cases, interpreting the CSI reporting configuration based on the at least one interpretation criterion may include the UE treating such a configuration as an error case. In some cases, interpreting the CSI reporting configuration based on the at least one interpretation criterion may include the UE reporting a multi-TRP CSI measurement without any single-TRP CSI measurements. In some cases, interpreting the CSI reporting configuration based on the at least one interpretation criterion may include the UE reporting a multi-TRP CSI measurement and a single-TRP CSI measurement. The single-TRP CSI measurements may be from 2N CMRs configured in N CMR pairs.

[0153] Referring to FIG. 14, as shown, this method for reporting of single-TRP and multi-TRP measurements in a single reporting instance may operate as follows.

[0154] At 1402, a UE, such as UE 106, may receive a CSI reporting configuration from a network (e.g., from a base station of the network, such as base station 102). The CSI reporting configuration may configure the UE to report zero CSI associated with a single-TRP measurement hypothesis along with CSI for multi-TRP hypotheses for which shared CMR is configured.

[0155] At 1404, the UE may interpret the CSI reporting configuration based at least in part on the at least one interpretation criterion. In some cases, interpreting the CSI reporting configuration based on the at least one interpretation criterion may include the UE treating such a configuration as an error case. In some cases, interpreting the CSI reporting configuration based on the at least one interpretation criterion may include the UE reporting a multi-TRP CSI measurement without any single-TRP CSI measurement. In some cases, interpreting the CSI reporting configuration based on the at least one interpretation criterion may include the UE reporting a multi-TRP CSI measurement and a single-TRP CSI measurement. The single-TRP CSI measurement may be from 2N CMRs configured in the N CMR pairs.

[0156] In some cases, the UE may receive a MAC CE from the network indicating QCL information for CSI-RS resources in a semi-persistent CSI-RS resource set. The MAC CE may include at least an indication of the transmission configuration indicator (TCI) states of the single-TRP and multi-TRP corresponding to the CSI-RS resources in the semi-persistent CSI-RS resource set. The MAC CE may also include a field indicating activation or deactivation of the semi-persistent CSI-RS resource set and / or a field indicating whether semi-persistent CSI-Interference Measurement (CSI-IM) resources are included in the MAC CE. In addition, the MAC CE may include 2N+k1+k2 TCI states corresponding to 2N+k1+k2 CSI-RS resources, where the 2N+k1+k2 CSI-RS resources may be for N channel measurement resource (CMR) pairs for multi-TRP CSI-RS measurements, k1 CMRs in a first group for the first single-TRP measurement, and k2 CMRs in a second group for the second single-TRP measurement. Furthermore, the semi-persistent CSI-RS resource set may be a non-zero power (NZP) semi-persistent CSI-RS resource set. In addition, the UE may receive a CSI reporting configuration from the network. The CSI reporting configuration may indicate which CSI the UE should report. Furthermore, the UE may use QCL information to perform CSI measurements based on the CSI reporting configuration. In other words, the UE may perform CSI measurements using QCL information indicated by the MAC CE based at least in part on the CSI reporting configuration. In addition, the UE may report the CSI measurements to the network.

[0157] In some cases, the UE may receive a radio resource control (RRC) message from the network. The RRC message may include parameters for configuring a QCL for aperiodic CSI measurements. The parameters may include a QCL information list. The QCL information list may include TCI state identifiers (IDs) for multi-TRP CSI measurements and single-TRP measurements. In addition, the UE may interpret the first 2N TCI state IDs in the QCL information list as configured for 2N channel measurement resources (CMRs) in N CMR pairs for multi-TRP CSI measurements configured in the corresponding CSI-RS resource set configured for aperiodic CSI measurements. Furthermore, the UE may interpret the next k1 TCI state IDs in the QCL information list as configured for k1 CMRs in a first CMR group for a first single-TRP CSI measurement configured in the corresponding CSI-RS resource set configured for aperiodic CSI measurements. In addition, the UE may interpret the next k2 TCI state IDs in the QCL information list as configured for the k2 CMRs in the second CMR group for the second single-TRP CSI measurements configured in the corresponding CSI-RS resource set configured for aperiodic CSI measurements.

[0158] In some cases, the UE may receive a radio resource control (RRC) message. The RRC message may include parameters for configuring a QCL for aperiodic CSI measurements. The parameters may include at least two QCL information lists. A first QCL information list of the at least two QCL information lists may include and / or be associated with a TCI state identifier (ID) for single-TRP CSI measurements. A second QCL information list of the at least two QCL information lists may include and / or be associated with a TCI state ID for multi-TRP measurements. The second QCL information list may include 2N TCI state IDs that may be configured for 2N channel measurement resources (CMRs) in N CMR pairs for multi-TRP CSI measurements configured in corresponding CSI-RS resource sets configured for aperiodic CSI measurements. In addition, the first QCL information list may include k1 + k2 TCI state IDs configured for k1 + k2 single-TRP measurements configured in corresponding CSI-RS resource sets configured for aperiodic CSI measurements. The first k1 TCI state IDs in the first QCL information list may be configured for k1 CMRs in a first CMR group for a first single-TRP CSI measurement configured in a corresponding CSI-RS resource set configured for aperiodic CSI measurements. The next k2 TCI state IDs in the first QCL information list may be configured for k2 CMRs in a second CMR group for a second single-TRP CSI measurement configured in a corresponding CSI-RS resource set configured for aperiodic CSI measurements. In addition, the UE may perform CSI measurements using at least two QCL information lists.

[0159] In some cases, a channel measurement resource (CMR) in a CMR pair for a multi-TRP CSI measurement may not be configured with the same spatial receiver parameters as any other CMR in another CMR pair for a multi-TRP CSI measurement.

[0160] In some cases, when the UE does not indicate support for multi-antenna panel activation, the channel measurement resources (CMRs) in a CMR pair for multi-TRP CSI measurements may not be configured with the same spatial receiver parameters as any CMR in a CMR group for single-TRP CSI measurements.

[0161] In some cases, when a UE indicates support for multi-antenna panel activation, the channel measurement resources (CMRs) in a CMR pair for multi-TRP CSI measurements may be configurable with the same spatial receiver parameters as the CMRs in a CMR group for single-TRP CSI measurements.

[0162] In some cases, the UE may receive a CSI reporting configuration from the network. The CSI reporting configuration may configure the UE to report one CSI associated with a single-TRP CSI measurement hypothesis along with CSI for multi-TRP CSI measurement hypotheses. Further, the UE may select a CMR group for the single TRP measurement based at least in part on at least one selection criterion. In some cases, selecting a CMR group for the single TRP measurement based on the at least one selection criterion may include the UE selecting a first CMR group for the single TRP measurement. In some cases, selecting a CMR group for the single TRP measurement based on the at least one selection criterion may include the UE determining which CMR group to select based on a configuration in the CSI-RS reporting configuration. In some cases, selecting a CMR group for the single TRP measurement based on the at least one selection criterion may include the UE measuring both CMR groups and reporting the best single TRP hypothesis across both CMR groups.

[0163] It is understood that use of personally identifiable information should comply with generally recognized privacy policies and practices that meet or exceed industry or government requirements for maintaining user privacy. In particular, personally identifiable information data should be managed and handled in a manner that minimizes the risk of unintended or unauthorized access or use, and the nature of permitted uses should be clearly indicated to users.

[0164] Embodiments of the present disclosure may be implemented in any of a variety of forms. For example, some embodiments may be implemented as a computer-implemented method, a computer-readable storage medium, or a computer system. Other embodiments may be implemented using one or more custom-designed hardware devices, such as an ASIC. Still other embodiments may be implemented using one or more programmable hardware elements, such as an FPGA.

[0165] In some embodiments, a non-transitory computer-readable memory medium may be configured to store program instructions and / or data that, when executed by a computer system, cause the computer system to perform the method, e.g., any of the method embodiments described herein, or a combination of the method embodiments described herein, or a subset of the method embodiments described herein, or a combination of such subsets.

[0166] In some embodiments, a device (e.g., UE 106) may be configured to include a processor (or set of processors) and a storage medium, the storage medium storing program instructions, the processor configured to read and execute the program instructions from the storage medium, the program instructions executable to implement various method embodiments described herein (or a combination of the method embodiments described herein, or any subset of the method embodiments described herein, or a combination of such subsets). The device may be embodied in any of a variety of forms.

[0167] Any of the methods described herein for operating a user equipment (UE) may be the basis for a corresponding method for operating a base station by interpreting each message / signal X received by the UE on the downlink as a message / signal X transmitted by the base station, and each message / signal Y transmitted by the UE on the uplink as a message / signal Y received by the base station.

[0168] Although the above embodiments have been described in considerable detail, numerous variations and modifications will become apparent to those skilled in the art once the above disclosure is fully appreciated, and it is intended that the following claims be interpreted to embrace all such variations and modifications.

Claims

1. 1. A method for configuring quasi-co-location (QCL) information of channel state information (CSI) reference signal (CSI-RS) resources for multiple transmission / reception points (multi-TRP), comprising: receiving, from a network, a medium access control (MAC) control element (CE) indicating QCL information of CSI-RS resources in a semi-persistent CSI-RS resource set, the MAC CE including at least an indication of single-TRP and multi-TRP transmit configuration indicator (TCI) states corresponding to the CSI-RS resources in the semi-persistent CSI-RS resource set, wherein the semi-persistent CSI-RS resource set is a non-zero power (NZP) semi-persistent CSI-RS resource set; receiving a CSI reporting configuration from the network, the CSI reporting configuration indicating which CSI a user equipment (UE) should report; performing CSI measurements using the QCL information indicated by the MAC CE based on the CSI reporting configuration; receiving a Radio Resource Control (RRC) message from the network, the RRC message including parameters for configuring a QCL for aperiodic CSI, the parameters including a QCL information list including TCI state identifiers (IDs) for multi-TRP CSI measurements and single-TRP measurements; interpreting the first 2N TCI state IDs in the QCL information list as configured for 2N channel measurement resources (CMRs) in N CMR pairs for multi-TRP CSI measurements configured in corresponding CSI-RS resource sets configured for aperiodic CSI measurements; Including, method.

2. reporting the CSI measurements to the network; The method of claim 1 further comprising:

3. the MAC CE includes a field indicating activation or deactivation of the semi-persistent CSI-RS resource set; The method of claim 1.

4. the MAC CE includes a field indicating whether a semi-persistent CSI-Interference Measurement (CSI-IM) resource is included in the MAC CE; The method of claim 1.

5. For N channel measurement resource (CMR) pairs for multi-TRP CSI-RS measurements, k1 CMRs in a first group for a first single-TRP measurement, and k2 CMRs in a second group for a second single-TRP measurement, the MAC CE includes 2N+k1+k2 TCI states corresponding to 2N+k1+k2 CSI-RS resources. The method of claim 1.

6. interpreting the next k1 TCI state IDs in the QCL information list as configured for k1 CMRs in a first CMR group for a first single-TRP CSI measurement configured in the corresponding CSI-RS resource set configured for aperiodic CSI measurement; interpreting the next k2 TCI state IDs in the QCL information list as configured for k2 CMRs in a second CMR group for a second single-TRP CSI measurement configured in the corresponding CSI-RS resource set configured for aperiodic CSI measurement; The method of claim 1 further comprising:

7. receiving, from the network, a radio resource control (RRC) message, the RRC message including parameters configuring a QCL for aperiodic CSI, the parameters being at least two QCL information lists, a first QCL information list of the at least two QCL information lists including a TCI state identifier (ID) for single-TRP CSI measurements, and a second QCL information list of the at least two QCL information lists including a TCI state ID for multi-TRP measurements; The method of claim 1 further comprising:

8. the second QCL information list includes 2N TCI state IDs configured for 2N channel measurement resources (CMRs) within N CMR pairs for multi-TRP CSI measurements configured within corresponding CSI-RS resource sets configured for aperiodic CSI measurements; The method of claim 7.

9. the first QCL information list includes k1+k2 TCI state IDs configured for k1+k2 single TRP measurements configured in a corresponding CSI-RS resource set configured for aperiodic CSI measurements, the first k1 TCI state IDs in the first QCL information list are configured for k1 CMRs in a first CMR group for a first single TRP CSI measurement configured in the corresponding CSI-RS resource set, and the next k2 TCI state IDs in the first QCL information list are configured for k2 CMRs in a second CMR group for a second single TRP CSI measurement configured in the corresponding CSI-RS resource set. The method of claim 7.

10. A baseband processor for a wireless device, comprising: receiving, from a network, a medium access control (MAC) control element (CE) indicating QCL information of CSI-RS resources in a semi-persistent CSI-RS resource set, the MAC CE including at least an indication of single-TRP and multi-TRP transmission configuration indicator (TCI) states corresponding to the CSI-RS resources in the semi-persistent CSI-RS resource set; receiving a CSI reporting configuration from the network, the CSI reporting configuration indicating which CSI the wireless device should report; performing CSI measurements using the QCL information indicated by the MAC CE based on the CSI reporting configuration; receiving a Radio Resource Control (RRC) message from the network, the RRC message including parameters for configuring a QCL for aperiodic CSI, the parameters including a QCL information list including TCI state identifiers (IDs) for multi-TRP CSI measurements and single-TRP measurements; a circuit configured to cause interpretation of first 2N TCI state IDs in the QCL information list as configured for 2N channel measurement resources (CMRs) in N CMR pairs for multi-TRP CSI measurements configured in a corresponding CSI-RS resource set configured for aperiodic CSI measurements; The baseband processor, wherein the semi-persistent CSI-RS resource set is a non-zero power (NZP) semi-persistent CSI-RS resource set.

11. No CMR in a channel measurement resource (CMR) pair for multi-TRP CSI measurements is configured with the same spatial receiver parameters as any other CMR in another CMR pair for the multi-TRP CSI measurements; The baseband processor of claim 10.

12. When support for multi-antenna panel activation is not indicated, no CMR in a channel measurement resource (CMR) pair for multi-TRP CSI measurements is configured with the same spatial receiver parameters as any CMR in a CMR group for single-TRP CSI measurements. The baseband processor of claim 10.

13. When support for multi-antenna panel activation is indicated, the CMRs in a channel measurement resource (CMR) pair for multi-TRP CSI measurements can be configured with the same spatial receiver parameters as the CMRs in a CMR group for single-TRP CSI measurements. The baseband processor of claim 10.

14. The circuitry is connected to the wireless device. receiving, from the network, a CSI reporting configuration that configures reporting of one CSI associated with a single-TRP CSI measurement hypothesis along with CSI for multiple-TRP CSI measurement hypotheses; To select a CMR group for a single TRP measurement, the circuit is further configured to: select a first CMR group for the single TRP measurement; and determine which CMR group is selected based on a configuration in a CSI-RS reporting configuration. The baseband processor of claim 10.

15. To select the CMR group for the single TRP measurement, the circuitry in the wireless device Both CMR groups were measured, Further configured to report the best single TRP hypothesis across both CMR groups; 15. The baseband processor of claim 14.

16. A non-transitory computer-readable memory medium storing program instructions executable by a baseband processor of a wireless device, the wireless device comprising: receiving, from a network, a medium access control (MAC) control element (CE) indicating QCL information of CSI-RS resources in a semi-persistent CSI-RS resource set, the MAC CE including at least an indication of single-TRP and multi-TRP transmission configuration indicator (TCI) states corresponding to the CSI-RS resources in the semi-persistent CSI-RS resource set; receiving a CSI reporting configuration from the network, the CSI reporting configuration indicating which CSI to report; performing CSI measurements using the QCL information indicated by the MAC CE based on the CSI reporting configuration; receiving a Radio Resource Control (RRC) message from the network, the RRC message including parameters for configuring a QCL for aperiodic CSI, the parameters including a QCL information list including TCI state identifiers (IDs) for multi-TRP CSI measurements and single-TRP measurements; interpreting the first 2N TCI state IDs in the QCL information list as configured for 2N channel measurement resources (CMRs) in N CMR pairs for multi-TRP CSI measurements configured in corresponding CSI-RS resource sets configured for aperiodic CSI measurements; 10. The non-transitory computer-readable memory medium, wherein the semi-persistent CSI-RS resource set is a non-zero power (NZP) semi-persistent CSI-RS resource set.

17. The program instructions cause the wireless device to: receiving from the network a CSI reporting configuration that configures the wireless device to not report any CSI associated with a single-TRP measurement hypothesis along with CSI for multiple-TRP hypotheses for which a shared CMR is configured; and further operable by the baseband processor of the wireless device to interpret CSI reports.

17. The non-transitory computer-readable memory medium of claim 16.

18. The method of claim 17, wherein the program instructions cause the wireless device to: Treat this configuration as an error case, Reporting multi-TRP CSI measurements without single-TRP CSI measurements, or and reporting a multi-TRP CSI measurement and a single-TRP CSI measurement, the single-TRP CSI measurement being from 2N CMRs configured in N CMR pairs.

20. The non-transitory computer-readable memory medium of claim 17.

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