Channel state information hypothesis configuration for coherent joint transmission scenarios
By configuring CSI hypotheses and CRIs between UE and network entities, the solution addresses the challenge of CJT CSI estimation in multi-TRP communications, enhancing communication performance.
Patent Information
- Application Number
- CN202280095630.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2022-05-10
- Publication Date
- 2024-12-13
AI Technical Summary
Existing wireless communication systems face challenges in efficiently configuring channel state information (CSI) hypotheses for coherent joint transmission (CJT) scenarios, which affect the performance of multi-TRP communications.
The proposed solution involves configuring user equipment (UE) and network entities to exchange CSI hypotheses and CSI reference signal resource indicators (CRIs) to enhance CJT CSI estimation, enabling improved communication performance.
This approach enhances the accuracy and efficiency of CJT CSI estimation, leading to improved communication quality and system performance in multi-TRP scenarios.
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Figure CN119137875A_ABST
Abstract
Description
Technical Field
[0001] Aspects of the present disclosure are generally related to wireless communications and techniques and apparatus for channel state information (CSI) hypothesis configuration for coherent joint transmission (CJT) scenarios. Background Art
[0002] Wireless communication systems are widely deployed to provide a variety of telecommunication services, such as telephone, video, data, messaging, and broadcasting. Typical wireless communication systems may employ multiple access technologies that can support communication with multiple users by sharing available system resources (e.g., bandwidth, transmit power, etc.). Examples of such multiple access technologies include code division multiple access (CDMA) systems, time division multiple access (TDMA) systems, frequency division multiple access (FDMA) systems, orthogonal frequency division multiple access (OFDMA) systems, single carrier frequency division multiple access (SC-FDMA) systems, time division synchronous code division multiple access (TD-SCDMA) systems, and long term evolution (LTE). LTE / LTE-Advanced is a set of enhancements to the Universal Mobile Telecommunications System (UMTS) mobile standard promulgated by the Third Generation Partnership Project (3GPP).
[0003] A wireless network may include one or more network entities that support communications for wireless communication devices, such as a user equipment (UE) or multiple UEs. A UE may communicate with a network entity via downlink communications and uplink communications. A "downlink" (or "DL") refers to a communication link from a network entity to a UE, and an "uplink" (or "UL") refers to a communication link from a UE to a network entity.
[0004] The above-mentioned multiple access technologies have been adopted in various telecommunication standards to provide a common protocol that enables different UEs to communicate at a city, country, region and / or global level. New Radio (NR), which may be referred to as 5G, is a set of enhancements to the LTE mobile standard promulgated by 3GPP. NR is designed to better integrate with other open standards by improving spectrum efficiency, reducing costs, improving services, utilizing new spectrum, and using orthogonal frequency division multiplexing (OFDM) (CP-OFDM) with cyclic prefix (CP) on the downlink, using CP-OFDM and / or single carrier frequency division multiplexing (SC-FDM) (also known as discrete Fourier transform spread OFDM (DFT-s-OFDM)) on the uplink, and supporting beamforming, multiple input multiple output (MIMO) antenna technology and carrier aggregation, so as to better support mobile broadband Internet access. As the demand for mobile broadband access continues to increase, further improvements in LTE, NR and other radio access technologies remain useful. Summary of the invention
[0005] Some aspects described herein relate to a user equipment (UE) for wireless communication. The UE may include a memory and one or more processors coupled to the memory. The one or more processors may be configured to receive configuration information indicating a set of CSI hypotheses associated with a coherent joint transmit (CJT) channel state information (CSI) estimate from a network entity. The one or more processors may be configured to send a CSI report indicating one or more CSI reference signal (CSI-RS) resource indicators (CRIs) associated with one or more CSI hypotheses in the CSI hypothesis set to the network entity, wherein each of the one or more CRIs is associated with a corresponding CSI hypothesis from the one or more CSI hypotheses.
[0006] Some aspects described herein relate to a network entity for wireless communication. The network entity may include a memory and one or more processors coupled to the memory. The one or more processors may be configured to send configuration information intended for a UE indicating a set of CSI hypotheses associated with a CJT CSI estimate. The one or more processors may be configured to receive a CSI report associated with the UE indicating one or more CRIs associated with one or more CSI hypotheses from the set of CSI hypotheses, wherein each of the one or more CRIs is associated with a corresponding CSI hypothesis from the one or more CSI hypotheses.
[0007] Some aspects described herein relate to a method of wireless communication performed by a UE. The method may include receiving configuration information indicating a set of CSI hypotheses associated with CJT CSI estimation from a network entity. The method may include sending a CSI report indicating one or more CRIs associated with one or more CSI hypotheses in the set of CSI hypotheses to the network entity, wherein each of the one or more CRIs is associated with a corresponding CSI hypothesis from the one or more CSI hypotheses.
[0008] Some aspects described herein relate to a method of wireless communication performed by a network entity. The method may include sending configuration information intended for a UE indicating a set of CSI hypotheses associated with a CJT CSI estimate. The method may include receiving a CSI report associated with the UE indicating one or more CRIs associated with one or more CSI hypotheses from the set of CSI hypotheses, wherein each of the one or more CRIs is associated with a corresponding CSI hypothesis from the one or more CSI hypotheses.
[0009] Some aspects described herein relate to a non-transitory computer-readable medium storing an instruction set for wireless communication by a UE. The instruction set, when executed by one or more processors of the UE, may cause the UE to receive configuration information indicating a CSI hypothesis set associated with a CJT CSI estimation from a network entity. The instruction set, when executed by one or more processors of the UE, may cause the UE to send a CSI report indicating one or more CRIs associated with one or more CSI hypotheses in the CSI hypothesis set to the network entity, wherein each of the one or more CRIs is associated with a corresponding CSI hypothesis from the one or more CSI hypotheses.
[0010] Some aspects described herein relate to a non-transitory computer-readable medium storing an instruction set for wireless communication by a network entity. The instruction set, when executed by one or more processors of the network entity, may cause the network entity to send configuration information intended for a UE indicating a set of CSI hypotheses associated with a CJT CSI estimate. The instruction set, when executed by one or more processors of the network entity, may cause the network entity to receive a CSI report associated with the UE indicating one or more CRIs associated with one or more CSI hypotheses from the set of CSI hypotheses, wherein each of the one or more CRIs is associated with a corresponding CSI hypothesis from the one or more CSI hypotheses.
[0011] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include means for receiving configuration information indicating a set of CSI hypotheses associated with CJT CSI estimation from a network entity. The apparatus may include means for sending a CSI report indicating one or more CRIs associated with one or more CSI hypotheses in the set of CSI hypotheses to the network entity, wherein each of the one or more CRIs is associated with a corresponding CSI hypothesis from the one or more CSI hypotheses.
[0012] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include means for sending configuration information intended for a UE indicating a set of CSI hypotheses associated with a CJT CSI estimate. The apparatus may include means for receiving a CSI report associated with the UE indicating one or more CRIs associated with one or more CSI hypotheses from the set of CSI hypotheses, wherein each of the one or more CRIs is associated with a respective CSI hypothesis from the one or more CSI hypotheses.
[0013] The various aspects generally include methods, apparatus, systems, computer program products, non-transitory computer-readable media, user equipment, base stations, network entities, network nodes, wireless communication devices and / or processing systems as fully described herein with reference to the drawings and description and as illustrated in the drawings and description.
[0014] The features and technical advantages of examples according to the present disclosure have been outlined quite extensively above so that the following specific embodiments may be better understood. Additional features and advantages will be described below. The disclosed concepts and specific examples may be easily used as a basis for modifying or designing other structures for achieving the same purpose of the present disclosure. Such equivalent constructions do not depart from the scope of protection of the appended claims. The characteristics of the concepts disclosed herein, both in terms of their organization and method of operation, and the associated advantages will be better understood by considering the following description in conjunction with the accompanying drawings. Each of the accompanying drawings is provided for the purpose of illustration and description, and not as a definition of the limitations of the claims.
[0015] Although various aspects are described in the present disclosure by illustrating some examples, it will be understood by those skilled in the art that such aspects can be implemented in many different arrangements and scenarios. The technology described herein can be implemented using different platform types, devices, systems, shapes, sizes and / or packaging arrangements. For example, some aspects can be implemented via integrated chip implementations or other devices based on non-module components (e.g., end-user devices, vehicles, communication equipment, computing equipment, industrial equipment, retail / shopping equipment, medical equipment and / or artificial intelligence devices). Various aspects can be implemented in chip-level components, modular components, non-modular components, non-chip-level components, device-level components and / or system-level components. The equipment incorporating the various aspects and features described may include additional components and features for implementing and practicing the various aspects claimed and described. For example, the transmission and reception of wireless signals may include one or more components for analog and digital purposes (e.g., hardware components, including antennas, radio frequency (RF) chains, power amplifiers, modulators, buffers, processors, interleavers, adders and / or summers). The various aspects described herein are intended to be practiced in various devices, components, systems, distributed arrangements and / or end-user devices of various sizes, shapes and configurations. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to fully understand the above-mentioned features of the present disclosure, a more specific description of the invention briefly summarized above can be obtained by referring to various aspects (some of which are illustrated in the accompanying drawings). However, it should be noted that the accompanying drawings only illustrate certain typical aspects of the present disclosure and are therefore not to be considered as limiting the scope thereof, as the specification may admit of other equally effective aspects. The same reference numerals in different drawings may identify the same or similar elements.
[0017] Figure 1 is a diagram illustrating an example of a wireless network according to the present disclosure.
[0018] Figure 2 is a diagram illustrating an example of a network entity communicating with a user equipment (UE) in a wireless network according to the present disclosure.
[0019] Figure 3 is a diagram illustrating an example decomposed base station architecture according to the present disclosure.
[0020] Figure 4 is a diagram illustrating an example of physical channels and reference signals in a wireless network according to the present disclosure.
[0021] Figure 5 is a diagram illustrating an example of multiple transmit-receive point (TRP) communications according to the present disclosure.
[0022] Figure 6 is a diagram illustrating examples of coherent joint transmission (CJT) and non-coherent joint transmission (NCJT) for multi-TRP (multi-TRP) communication according to the present disclosure.
[0023] Figure 7 is a diagram illustrating an example of a hypothetical configuration of channel state information (CSI) for non-coherent joint transmission of multi-TRP communications according to the present disclosure.
[0024] Figure 8 is a diagram of an example associated with a CSI assumption configuration for a CJT scenario according to the present disclosure.
[0025] Fig. 9 is a diagram of an example associated with a CSI hypothesis configuration based on a CSI reference signal (CSI-RS) resource for a CJT scenario according to the present disclosure.
[0026] Fig.10 is a diagram of an example associated with a CSI hypothesis configuration based on CSI-RS resources for a CJT scenario according to the present disclosure.
[0027] Fig.11 is a diagram of an example associated with a port group based CSI assumption configuration for a CJT scenario according to the present disclosure.
[0028] Fig.12 is a diagram of an example associated with a port group based CSI assumption configuration for a CJT scenario according to the present disclosure.
[0029] Fig.13 is a diagram of an example associated with CSI hypothesis configuration based on CSI-RS resources for both CJT scenarios and NCJT scenarios according to the present disclosure.
[0030] Fig.14 is a diagram of an example associated with a port group based CSI assumption configuration for both a CJT scenario and a NCJT scenario according to the present disclosure.
[0031] Fig.15 is a diagram illustrating an example process performed, for example, by a UE according to the present disclosure.
[0032] Fig.16 is a diagram illustrating an example process performed, for example, by a network entity according to the present disclosure.
[0033] Fig.17 is a diagram of an example apparatus for wireless communications according to the present disclosure.
[0034] Fig.18 is a diagram of an example apparatus for wireless communications according to the present disclosure. DETAILED DESCRIPTION
[0035] The various aspects of the disclosure are described more fully below with reference to the accompanying drawings. However, the present disclosure can be embodied in many different forms, and should not be interpreted as being limited to any specific structure or function presented throughout the present disclosure. Instead, these aspects are provided so that the present disclosure will be thorough and complete, and the protection scope of the disclosure will be fully conveyed to those skilled in the art. It should be appreciated by those skilled in the art that the scope of the disclosure is intended to cover any aspect of the disclosure disclosed herein, whether it is independently or in combination with any other aspect of the disclosure. For example, any number of aspects set forth herein may be used to implement a device or practice method. In addition, the scope of the present disclosure is intended to cover such a device or method that is practiced using other structures, functionality, or structure and functionality in addition to or different from the various aspects of the disclosure listed herein. It should be understood that any aspect of the disclosure disclosed herein may be embodied by one or more elements of the claims.
[0036] Several aspects of telecommunication systems will now be presented with reference to various devices and techniques. These devices and techniques will be described in the following detailed description and illustrated in the accompanying drawings by various blocks, modules, components, circuits, steps, processes, algorithms, etc. (collectively referred to as "elements"). These elements can be implemented using hardware, software, or a combination thereof. Whether these elements are implemented as hardware or software depends on the specific application and the design constraints imposed on the overall system.
[0037] Although various aspects may be described herein using terminology often associated with 5G or new radio (NR) radio access technology (RAT), various aspects of the present disclosure may be applied to other RATs, such as 3G RAT, 4G RAT, and / or post-5G RATs (e.g., 6G).
[0038] Figure 1 1 is a diagram illustrating an example of a wireless network 100 according to the present disclosure. The wireless network 100 may be a 5G (e.g., NR) network and / or a 4G (e.g., Long Term Evolution (LTE)) network, or may include elements of a 5G (e.g., NR) network and / or elements of a 4G (e.g., Long Term Evolution (LTE)) network, etc. The wireless network 100 may include one or more network entities 110 (shown as network entity (NE) 110a, NE 110b, NE 110c, and NE 110d), a user equipment (UE) 120 or multiple UEs 120 (shown as UE 120a, UE 120b, UE 120c, UE 120d, and UE 120e), and / or other network entities. The network entity 110 is an entity that communicates with the UE 120. As shown in the figure, the network entity 110 may include one or more network entities. For example, the network entity 110 may be a converged network node, which means that the converged network entity is configured to utilize a radio protocol stack that is physically or logically integrated within a single RAN node (e.g., within a single device or unit). As another example, the network entity 110 may be a decomposed network node (sometimes referred to as a decomposed base station), which means that the network entity 110 includes two or more non-co-located network nodes. A decomposed network entity may be configured to utilize a protocol stack that is physically or logically distributed between two or more nodes, such as one or more central units (CUs), one or more distributed units (DUs), or one or more radio units (RUs).
[0039] In some examples, the network entity 110 includes an entity, such as an RU, that communicates with the UE 120 via a radio access link. In some examples, the network entity 110 includes an entity, such as a DU, that communicates with other network entities 110 via a fronthaul link or a midhaul link. In some examples, the network entity 110 includes an entity, such as a CU, that communicates with other network entities 110 via a midhaul link or communicates with the core network via a backhaul link. In some examples, the network entity 110 (such as an aggregated network entity 110 or a decomposed network entity 110) may include multiple network entities, such as one or more RUs, one or more CUs, or one or more DUs. For example, the network entity 110 may include an NR base station, an LTE base station, a Node B, an eNB (e.g., in 4G), a gNB (e.g., in 5G), an access point, a transmit receive point (TRP), a DU, a RU, a CU, a mobility element of a network, a core network node, a network element, a network equipment, a RAN node, or a combination thereof. In some examples, the network entities 110 may be interconnected to each other or to one or more other network entities 110 in the wireless network 100 using any suitable transport network through various types of fronthaul interfaces, midhaul interfaces, or backhaul interfaces (such as direct physical connections, air interfaces, or virtual networks). Each network entity 110 may provide communication coverage for a particular geographic area. In the Third Generation Partnership Project (3GPP), the term "cell" may refer to a coverage area of a network entity 110 and / or a network entity subsystem serving the coverage area, depending on the context in which the term is used.
[0040] The network entity 110 may provide communication coverage for a macro cell, a pico cell, a femto cell, and / or another type of cell. A macro cell may cover a relatively large geographic area (e.g., a radius of several kilometers) and may allow unrestricted access by a UE 120 with a service subscription. A pico cell may cover a relatively small geographic area and may allow unrestricted access by a UE 120 with a service subscription. A femto cell may cover a relatively small geographic area (e.g., a home) and may allow restricted access by a UE 120 that has an association with the femto cell (e.g., a UE 120 in a closed subscriber group (CSG)). The network entity 110 for a macro cell may be referred to as a macro network entity. The network entity 110 for a pico cell may be referred to as a pico network entity. The network entity 110 for a femto cell may be referred to as a femto network entity or a home network entity. In Figure 1In the example shown in , network entity 110a may be a macro network entity for macro cell 102a, network entity 110b may be a pico network entity for pico cell 102b, and network entity 110c may be a femto network entity for femto cell 102c. Network entity 110 may support one or more (e.g., three) cells. In some examples, the cells may not necessarily be stationary, and the geographic area of the cells may move depending on the location of a mobile network entity 110 (e.g., a mobile network entity).
[0041] In some aspects, the term "base station" or "network entity" may refer to a clustered base station, a decomposed base station, an integrated access and backhaul (IAB) node, a relay node, or one or more components thereof. For example, in some aspects, a "base station" or "network entity" may refer to a CU, a DU, a RU, a near real-time (near RT) radio access network (RAN) intelligent controller (RIC) or a non-real-time (non-RT) RIC, or a combination thereof. In some aspects, the term "base station" or "network entity" may refer to a device configured to perform one or more functions such as those described herein in conjunction with the network entity 110. In some aspects, the term "base station" or "network entity" may refer to a plurality of devices configured to perform one or more functions. For example, in some distributed systems, each of a plurality of different devices (which may be located in the same geographic location or in different geographic locations) may be configured to perform at least a portion of a function, or to repeat the execution of at least a portion of the function, and the term "base station" or "network entity" may refer to any one or more of these different devices. In some aspects, the term "base station" or "network entity" may refer to one or more virtual base stations or one or more virtual base station functions. For example, in some aspects, two or more base station functions may be instantiated on a single device. In some aspects, the term "base station" or "network entity" may refer to one of the base station functions but not the other. In this way, a single device may include more than one base station.
[0042] In some examples, the cells may not necessarily be stationary, and the geographic area of the cells may move depending on the location of the mobile network entity 110 (e.g., the mobile network entity). In some examples, the network entities 110 may interconnect with each other and / or with one or more other network entities 110 or network nodes (not shown) in the wireless network 100 using any suitable transport network through various types of backhaul interfaces (such as direct physical connections or virtual networks).
[0043] The wireless network 100 may include one or more relay stations. A relay station is an entity capable of receiving transmissions of data from an upstream station (e.g., a network entity 110 or a UE 120) and transmitting transmissions of data to a downstream station (e.g., a UE 120 or a network entity 110). A relay station may be a UE 120 capable of relaying transmissions for other UEs 120. Figure 1 In the example shown in , a network entity 110d (e.g., a relay network entity) may communicate with a network entity 110a (e.g., a macro network entity) and a UE 120d to facilitate communication between the network entity 110a and the UE 120d. The network entity 110 that relays communications may be referred to as a relay station, a relay base station, a relay, a relay network entity, and / or a relay node, etc.
[0044] The wireless network 100 may be a heterogeneous network that includes different types of network entities 110, such as macro network entities, pico network entities, femto network entities, relay network entities, etc. These different types of network entities 110 may have different transmit power levels, different coverage areas, and / or different impacts on interference in the wireless network 100. For example, a macro network entity may have a high transmit power level (e.g., 5 watts to 40 watts), while a pico network entity, a femto network entity, and a relay network entity may have a lower transmit power level (e.g., 0.1 watt to 2 watts).
[0045] The network controller 130 may be coupled to or in communication with a set of network entities 110 and may provide coordination and control for these network entities 110. The network controller 130 may communicate with the network entities 110 via a backhaul communication link. The network entities 110 may also communicate directly with each other or indirectly via a wireless or wired backhaul communication link. In some aspects, the network controller 130 may be a CU, or may include a CU or a core network device.
[0046] UE 120 can be dispersed throughout the wireless network 100, and each UE 120 can be stationary or mobile. UE 120 can include, for example, access terminals, terminals, mobile stations, and / or subscriber units. UE 120 can be a cellular phone (e.g., a smart phone), a personal digital assistant (PDA), a wireless modem, a wireless communication device, a handheld device, a laptop computer, a cordless phone, a wireless local loop (WLL) station, a tablet computer, a camera, a gaming device, a netbook, a smartbook, an ultrabook, a medical device, a biometric device, a wearable device (e.g., a smart watch, smart clothing, smart glasses, a smart wristband, smart jewelry (e.g., a smart ring or a smart bracelet)), an entertainment device (e.g., a music device, a video device, and / or a satellite radio), a vehicle component or sensor, a smart meter / sensor, an industrial manufacturing equipment, a global positioning system device, a UE function of a network entity, and / or any other suitable device configured to communicate via a wireless medium.
[0047] Some UEs 120 may be considered as machine type communication (MTC) or evolved or enhanced machine type communication (eMTC) UEs. MTC UEs and / or eMTC UEs may include, for example, robots, drones, remote devices, sensors, meters, monitors, and / or location tags, which may communicate with a base station, a network entity, another device (e.g., a remote device), or some other entity. Some UEs 120 may be considered as Internet of Things (IoT) devices, and / or may be implemented as NB-IoT (narrowband IoT) devices. Some UEs 120 may be considered as customer premises equipment. UE 120 may be included inside a housing that houses components of UE 120, such as a processor component and / or a memory component. In some examples, a processor component and a memory component may be coupled together. For example, a processor component (e.g., one or more processors) and a memory component (e.g., a memory) may be operationally coupled, communicatively coupled, electronically coupled, and / or electrically coupled.
[0048] In general, any number of wireless networks 100 may be deployed in a given geographic area. Each wireless network 100 may support a specific RAT and may operate on one or more frequencies. RAT may be referred to as a radio technology, air interface, etc. Frequency may be referred to as a carrier, frequency channel, etc. Each frequency may support a single RAT in a given geographic area to avoid interference between wireless networks of different RATs. In some cases, NR or 5G RAT networks may be deployed.
[0049] In some examples, two or more UEs 120 (e.g., shown as UE 120a and UE 120e) may communicate directly (e.g., without using network entity 110 as an intermediary to communicate with each other) using one or more side link channels. For example, UE 120 may communicate using peer-to-peer (P2P) communication, device-to-device (D2D) communication, vehicle-to-everything (V2X) protocols (e.g., which may include vehicle-to-vehicle (V2V) protocols, vehicle-to-infrastructure (V2I) protocols, or vehicle-to-pedestrian (V2P) protocols), and / or mesh networks. In such examples, UE 120 may perform scheduling operations, resource selection operations, and / or other operations described elsewhere herein as being performed by network entity 110.
[0050] The devices of the wireless network 100 may communicate using an electromagnetic spectrum, which may be subdivided into various categories, bands, channels, etc., based on frequency or wavelength. For example, the devices of the wireless network 100 may communicate using one or more operating bands. In 5G NR, two initial operating bands have been identified as frequency ranges designated FR1 (410 MHz-7.125 GHz) and FR2 (24.25 GHz-52.6 GHz). It should be understood that, although portions of FR1 are greater than 6 GHz, FR1 is often (interchangeably) referred to as the "below 6 GHz" band in various documents and articles. A similar naming problem sometimes occurs with respect to FR2, which is often (interchangeably) referred to as the "millimeter wave" band in documents and articles, although different from the extremely high frequency (EHF) band (30 GHz-300 GHz) identified as the "millimeter wave" band by the International Telecommunication Union (ITU).
[0051] The frequencies between FR1 and FR2 are generally referred to as mid-band frequencies. Recent 5G NR research has identified the operating bands for these mid-band frequencies as frequency range designation FR3 (7.125GHz-24.25GHz). The frequency bands falling within FR3 can inherit FR1 characteristics and / or FR2 characteristics, and therefore the features of FR1 and / or FR2 can be effectively extended to mid-band frequencies. In addition, higher frequency bands are currently being explored to extend 5G NR operations to more than 52.6GHz. For example, three higher operating bands have been identified as frequency range designations FR4a or FR4-1 (52.6GHz-71GHz), FR4 (52.6GHz-114.25GHz) and FR5 (114.25GHz-300GHz). Each of these higher frequency bands falls within the EHF band.
[0052] In view of the above examples, unless otherwise specifically stated, it should be understood that if the term "below 6 GHz" or the like is used herein, the term can be broadly referred to as a frequency that can be lower than 6 GHz, can be within FR1, or can include mid-band frequencies. In addition, unless otherwise specifically stated, it should be understood that if the term "millimeter wave" or the like is used herein, the term can be broadly referred to as a frequency that can include mid-band frequencies, can be within FR2, FR4, FR4-a or FR4-1 and / or FR5, or can be within the EHF band. It is expected that the frequencies included in these operating bands (e.g., FR1, FR2, FR3, FR4, FR4-a, FR4-1, and / or FR5) can be modified, and the techniques described herein are applicable to those modified frequency ranges.
[0053] In some aspects, UE 120 may include communication manager 140. As described in greater detail elsewhere herein, communication manager 140 may receive configuration information indicating a set of CSI hypotheses associated with a coherent joint transmit (CJT) channel state information (CSI) estimate from a network entity; and send a CSI report indicating one or more CSI reference signal (CSI-RS) resource indicators (CRIs) associated with one or more CSI hypotheses in the set of CSI hypotheses to the network entity, wherein each of the one or more CRIs is associated with a respective CSI hypothesis from the one or more CSI hypotheses. Additionally or alternatively, communication manager 140 may perform one or more other operations described herein.
[0054] In some aspects, the network entity 110 may include a communication manager 150. As described in greater detail elsewhere herein, the communication manager 150 may send configuration information intended for a UE indicating a set of CSI hypotheses associated with a CJT CSI estimate; and receive a CSI report associated with the UE indicating one or more CRIs associated with one or more CSI hypotheses from the set of CSI hypotheses, wherein each of the one or more CRIs is associated with a respective CSI hypothesis from the one or more CSI hypotheses. Additionally or alternatively, the communication manager 150 may perform one or more other operations described herein.
[0055] As indicated above, Figure 1 are provided as examples. Other examples can be found in the Figure 1 Different than described.
[0056] Figure 22 is a diagram illustrating an example 200 of a network entity 110 communicating with a UE 120 in a wireless network 100 according to the present disclosure. The network entity 110 may be equipped with a set of antennas 234a to 234t, such as T antennas (T≥1). The UE 120 may be equipped with a set of antennas 252a to 252r, such as R antennas (R≥1). The network entity 110 of example 200 includes one or more radio frequency components, such as an antenna 234 and a modem 254. In some examples, the network entity 110 may include an interface, a communication component, or another component that facilitates communication with the UE 120 or another network entity. Some network entities 110 (such as one or more CUs or one or more DUs) may not include a radio frequency component that facilitates direct communication with the UE 120.
[0057] At the network entity 110, a transmit processor 220 may receive data intended for a UE 120 (or a set of UEs 120) from a data source 212. The transmit processor 220 may select one or more modulation and coding schemes (MCS) for the UE 120 based at least in part on one or more channel quality indicators (CQIs) received from the UE 120. The network entity 110 may process (e.g., encode and modulate) the data for the UE 120 based at least in part on the MCS selected for the UE 120, and may provide data symbols for the UE 120. The transmit processor 220 may process system information (e.g., for semi-static resource partitioning information (SRPI)) and control information (e.g., CQI requests, grants, and / or upper layer signaling), and provide overhead symbols and control symbols. The transmit processor 220 may generate reference symbols for reference signals (e.g., cell-specific reference signals (CRS) or demodulation reference signals (DMRS)) and synchronization signals (e.g., primary synchronization signals (PSS) or secondary synchronization signals (SSS)). The transmit (TX) multiple-input multiple-output (MIMO) processor 230 may perform spatial processing (e.g., pre-coding) on data symbols, control symbols, overhead symbols, and / or reference symbols, where applicable, and may provide a set of output symbol streams (e.g., T output symbol streams) to a corresponding set of modems 232 (e.g., T modems) (shown as modems 232a to 232t). For example, each output symbol stream may be provided to a modulator component (shown as MOD) of the modem 232. Each modem 232 may process a corresponding output symbol stream (e.g., for OFDM) using a corresponding modulator component to obtain an output sample stream. Each modem 232 may further process (e.g., convert to analog, amplify, filter, and / or upconvert) the output sample stream using a corresponding modulator component to obtain a downlink signal. The modems 232a through 232t may transmit a set of downlink signals (eg, T downlink signals) via a corresponding set of antennas 234 (eg, T antennas) (shown as antennas 234a through 234t).
[0058] At the UE 120, a set of antennas 252 (shown as antennas 252a to 252r) may receive downlink signals from the network entity 110 and / or other network entities 110 and may provide a set of received signals (e.g., R received signals) to a set of modems 254 (e.g., R modems) (shown as modems 254a to 254r). For example, each received signal may be provided to a demodulator component (shown as DEMOD) of the modem 254. Each modem 254 may use a corresponding demodulator component to condition (e.g., filter, amplify, downconvert, and / or digitize) the received signal to obtain input samples. Each modem 254 may use a demodulator component to further process the input samples (e.g., for OFDM) to obtain received symbols. A MIMO detector 256 may obtain received symbols from the modem 254, may perform MIMO detection on the received symbols where applicable, and may provide detected symbols. The receive processor 258 may process (e.g., demodulate and decode) the detected symbols, may provide decoded data for the UE 120 to the data sink 260, and may provide decoded control information and system information to the controller / processor 280. The term "controller / processor" may refer to one or more controllers, one or more processors, or a combination thereof. The channel processor may determine a reference signal received power (RSRP) parameter, a received signal strength indicator (RSSI) parameter, a reference signal received quality (RSRQ) parameter, and / or a CQI parameter, among other things. In some examples, one or more components of the UE 120 may be included in the housing 284.
[0059] The network controller 130 may include a communication unit 294, a controller / processor 290, and a memory 292. The network controller 130 may include, for example, one or more devices in a core network. The network controller 130 may communicate with the network entity 110 via the communication unit 294.
[0060] One or more antennas (e.g., antennas 234a to 234t and / or antennas 252a to 252r) may include, or may be included within, one or more antenna panels, one or more antenna groups, one or more sets of antenna elements, and / or one or more antenna arrays, etc. Antenna panels, antenna groups, sets of antenna elements, and / or antenna arrays may include one or more antenna elements (within a single housing or multiple housings), sets of coplanar antenna elements, sets of non-coplanar antenna elements, and / or coupled to one or more transmit and / or receive components (such as, Figure 2 One or more antenna elements of one or more components in.
[0061] On the uplink, at the UE 120, the transmit processor 264 may receive and process data from the data source 262 and control information from the controller / processor 280 (e.g., for reports including RSRP, RSSI, RSRQ, and / or CQI). The transmit processor 264 may generate reference symbols for one or more reference signals. The symbols from the transmit processor 264 may be pre-decoded by the TX MIMO processor 266, where applicable, further processed by the modem 254 (e.g., for DFT-s-OFDM or CP-OFDM), and sent to the network entity 110. In some examples, the modem 254 of the UE 120 may include a modulator and a demodulator. In some examples, the UE 120 includes a transceiver. The transceiver may include any combination of an antenna 252, a modem 254, a MIMO detector 256, a receive processor 258, a transmit processor 264, and / or a TX MIMO processor 266. The transceiver may be used by a processor (eg, controller / processor 280) and memory 282 to perform the functions described herein (eg, reference Figures 8 to 18 ) or any aspect of any of the methods described herein.
[0062] At the network entity 110, uplink signals from the UE 120 and / or other UEs may be received by the antenna 234, processed by the modem 232 (e.g., a demodulator component of the modem 232 shown as DEMOD), detected by the MIMO detector 236 (if applicable), and further processed by the receive processor 238 to obtain decoded data and control information transmitted by the UE 120. The receive processor 238 may provide the decoded data to the data sink 239 and the decoded control information to the controller / processor 240. The network entity 110 may include a communication unit 244 and may communicate with the network controller 130 via the communication unit 244. The network entity 110 may include a scheduler 246 to schedule one or more UEs 120 for downlink and / or uplink communications. In some examples, the modem 232 of the network entity 110 may include a modulator and a demodulator. In some examples, the network entity 110 includes a transceiver. The transceiver may include any combination of antenna 234, modem 232, MIMO detector 236, receive processor 238, transmit processor 220, and / or TX MIMO processor 230. The transceiver may be used by a processor (e.g., controller / processor 240) and memory 242 to perform operations described herein (e.g., with reference to Figures 8 to 18 ) or any aspect of any of the methods described herein.
[0063] The controller / processor 240 of the network entity 110, the controller / processor 280 of the UE 120, and / or Figure 2 Any other component in the may perform one or more techniques associated with CSI hypothesis configuration for CJT scenarios, as described in more detail elsewhere herein. For example, the controller / processor 240 of the network entity 110, the controller / processor 280 of the UE 120, and / or Figure 2 Any other component in may perform or direct e.g. Fig.15 The process of 1500 Fig.16 1600, processes, and / or operations of other processes as described herein. Memory 242 and memory 282 may store data and program codes for network entity 110 and UE 120, respectively. In some examples, memory 242 and / or memory 282 may include a non-transitory computer-readable medium storing one or more instructions (e.g., code and / or program code) for wireless communication. For example, the one or more instructions, when executed by one or more processors of network entity 110 and / or UE 120 (e.g., directly, or after compilation, conversion, and / or interpretation), may cause the one or more processors, UE 120, and / or network entity 110 to perform or direct, for example, Fig.15 The process of 1500 Fig.16 The process 1600 of , process and / or operation of other processes as described herein. In some examples, executing instructions may include running instructions, converting instructions, compiling instructions and / or interpreting instructions, etc.
[0064] In some aspects, the UE 120 includes components for receiving configuration information indicating a set of CSI hypotheses associated with CJT CSI estimation from a network entity (e.g., using the antenna 252, the modem 254, the MIMO detector 256, the receive processor 258, the controller / processor 280, and / or the memory 282); and / or components for sending a CSI report indicating one or more CRIs associated with one or more CSI hypotheses in the set of CSI hypotheses to the network entity, wherein each of the one or more CRIs is associated with a corresponding CSI hypothesis from the one or more CSI hypotheses (e.g., using the controller / processor 280, the transmit processor 264, the TX MIMO processor 266, the modem 254, the antenna 252, and / or the memory 282). Means for UE 120 to perform operations described herein may include, for example, one or more of communications manager 140, antenna 252, modem 254, MIMO detector 256, receive processor 258, transmit processor 264, TX MIMO processor 266, controller / processor 280, or memory 282.
[0065] In some aspects, the network entity 110 includes components for sending configuration information intended for the UE indicating a set of CSI hypotheses associated with CJT CSI estimation (e.g., using the controller / processor 240, the transmit processor 220, the TX MIMO processor 230, the modem 232, the antenna 234, and / or the memory 242); and / or components for receiving a CSI report associated with the UE indicating one or more CRIs associated with one or more CSI hypotheses from the CSI hypothesis set, wherein each of the one or more CRIs is associated with a corresponding CSI hypothesis from the one or more CSI hypotheses (e.g., using the antenna 234, the modem 232, the MIMO detector 236, the receive processor 238, the controller / processor 240, and / or the memory 242). In some aspects, components for the network entity 110 to perform operations described herein may include, for example, one or more of the communication manager 150, the transmit processor 220, the TX MIMO processor 230, the modem 232, the antenna 234, the MIMO detector 236, the receive processor 238, the controller / processor 240, the memory 242, or the scheduler 246.
[0066] Although Figure 2 The blocks in the 2000 and 2010 are illustrated as distinct components, but the functionality described above for these blocks may be implemented in a single hardware, software, or combined component or in various combinations of components. For example, the functionality described for the transmit processor 264, the receive processor 258, and / or the TX MIMO processor 266 may be performed by or under the control of the controller / processor 280.
[0067] As indicated above, Figure 2 are provided as examples. Other examples can be found in the Figure 2 Different than described.
[0068] The deployment of a communication system (such as a 5G NR system) can be arranged with various components or components in a variety of ways. In a 5G NR system or network, a network node, a network entity, a mobility element of a network, a RAN node, a core network node, a network element, a base station or network equipment can be implemented in an aggregated or decomposed architecture. For example, a base station (such as a Node B (NB), an evolved NB (eNB), an NR BS, a 5G NB, an access point (AP), a TRP or a cell, etc.) or one or more units (or one or more components) that perform base station functionality can be implemented as an aggregated base station (also called an independent base station or a monolithic base station) or a decomposed base station.
[0069] A converged base station may be configured to utilize a radio protocol stack that is physically or logically integrated within a single RAN node (e.g., within a single device or unit). A decomposed base station may be configured to utilize a protocol stack that is physically or logically distributed between two or more units (such as a CU, one or more DUs, or one or more RUs). In some examples, a CU may be implemented within a RAN node, and one or more DUs may be co-located with the CU, or alternatively, may be geographically or virtually distributed in one or more other RAN nodes. A DU may be implemented to communicate with one or more RUs. Each of the CU, DU, and RU may also be implemented as a virtual unit, such as a virtual central unit (VCU), a virtual distributed unit (VDU), or a virtual radio unit (VRU), and the like.
[0070] Base station type operations or network designs may take into account the aggregated nature of base station functionality. For example, a decomposed base station may be utilized in an IAB network, an open radio access network (O-RAN (such as a network configuration initiated by the O-RAN Alliance)), or a virtualized radio access network (vRAN, also known as a cloud radio access network (C-RAN)) to facilitate the scaling of a communication system by separating base station functionality into one or more units that can be deployed separately. A decomposed base station may include functionality implemented across two or more units at various physical locations, as well as functionality implemented virtually for at least one unit, which may enable flexibility in network design. Various units of a decomposed base station may be configured for wired or wireless communication with at least one other unit of the decomposed base station.
[0071] Figure 3 3 is a diagram illustrating an example decomposed base station architecture 300 according to the present disclosure. The decomposed base station architecture 300 may include a CU 310, which may communicate directly with a core network 320 via a backhaul link, or indirectly with the core network 320 through one or more decomposed control units (such as a near-RT RIC 325 via an E2 link, or a non-RT RIC 315 associated with a service management and orchestration (SMO) framework 305, or both). The CU 310 may communicate with one or more DUs 330 via respective midhaul links, such as via an F1 interface. The DU 330 may communicate with one or more RUs 340 via respective fronthaul links. Each of the RUs 340 may communicate with one or more UEs 120 via respective radio frequency (RF) access links. In some implementations, a UE 120 may be served by multiple RUs 340 simultaneously.
[0072] Each of the units (including CU 310, DU 330, RU 340) and the near-RT RIC 325, non-RT RIC 315, and SMO framework 305 may include or be coupled to one or more interfaces configured to receive or send signals, data, or information (collectively referred to as signals) via a wired or wireless transmission medium. Each of the units or an associated processor or controller that provides instructions to one or more communication interfaces of the corresponding unit may be configured to communicate with one or more of the other units via a transmission medium. In some examples, each of the units may include a wired interface and a wireless interface, the wired interface being configured to receive signals or send signals to one or more of the other units via a wired transmission medium, and the wireless interface being configured to receive signals or send signals to one or more of the other units via a wireless transmission medium, or both.
[0073] In some aspects, CU 310 may host one or more higher layer control functions. Such control functions may include radio resource control (RRC) functions, packet data convergence protocol (PDCP) functions, or service data adaptation protocol (SDAP) functions, etc. Each control function may be implemented using an interface that is configured to communicate signals with other control functions hosted by CU 310. CU 310 may be configured to handle user plane functionality (e.g., central unit-user plane (CU-UP) functionality), control plane functionality (e.g., central unit-control plane (CU-CP) functionality), or a combination thereof. In some specific implementations, CU 310 may be logically split into one or more CU-UP units and one or more CU-CP units. When implemented in an O-RAN configuration, the CU-UP unit may communicate bidirectionally with the CU-CP unit via an interface such as an E1 interface. As needed, CU 310 may be implemented to communicate with DU 330 for network control and signaling.
[0074] Each DU 330 may correspond to a logical unit that includes one or more base station functions for controlling the operation of one or more RUs 340. In some aspects, the DU 330 may host one or more of a radio link control (RLC) layer, a medium access control (MAC) layer, and one or more high physical (PHY) layers, at least in part, according to a functional split (such as a functional split defined by 3GPP). In some aspects, one or more high PHY layers may be implemented by one or more modules for forward error correction (FEC) coding and decoding, scrambling, modulation and demodulation, etc. In some aspects, the DU 330 may also host one or more low PHY layers, such as one or more modules for fast Fourier transform (FFT), inverse FFT (iFFT), digital beamforming or physical random access channel (PRACH) extraction and filtering, etc. Each layer (which may also be referred to as a module) may be implemented using an interface that is configured to communicate signals with other layers (and modules) hosted by the DU 330 or with control functions hosted by the CU 310.
[0075] Each RU 340 may implement lower layer functionality. In some deployments, the RU 340 controlled by the DU 330 may correspond to a logical node that hosts RF processing functions based on functional splits (e.g., functional splits defined by 3GPP) such as lower layer functional splits, or low PHY layer functions such as performing FFT, performing iFFT, digital beamforming, or PRACH extraction and filtering, etc. In this architecture, each RU 340 may be operated to handle over-the-air (OTA) communications with one or more UEs 120. In some specific implementations, real-time and non-real-time aspects of control plane and user plane communications with the RU 340 may be controlled by the corresponding DU 330. In some scenarios, this configuration may enable each DU 330 and CU 310 to be implemented in a cloud-based RAN architecture such as a vRAN architecture.
[0076] The SMO framework 305 may be configured to support RAN deployment and configuration of non-virtualized network elements and virtualized network elements. For non-virtualized network elements, the SMO framework 305 may be configured to support the deployment of dedicated physical resources for RAN coverage requirements, which may be managed via an operation and maintenance interface (such as an O1 interface). For virtualized network elements, the SMO framework 305 may be configured to interact with a cloud computing platform (such as an open cloud (O-Cloud) platform 390) to perform network element lifecycle management (such as instantiating virtualized network elements) via a cloud computing platform interface (such as an O2 interface). Such virtualized network elements may include, but are not limited to, CU 310, DU 330, RU 340, non-RT RIC 315, and near-RT RIC 325. In some specific implementations, the SMO framework 305 may communicate with hardware aspects of the 4G RAN such as an open eNB (O-eNB) 311 via the O1 interface. Additionally, in some implementations, the SMO framework 305 can communicate directly with each of the one or more RUs 340 via a corresponding O1 interface. The SMO framework 305 can also include a non-RTRIC 315 configured to support the functionality of the SMO framework 305.
[0077] The non-RT RIC 315 may be configured to include logic functions that enable non-real-time control and optimization of RAN elements and resources, artificial intelligence / machine learning (AI / ML) workflows including model training and updating, or policy-based guidance of applications / features in the near-RT RIC 325. The non-RT RIC 315 may be coupled to or communicate with the near-RT RIC 325 (such as via an A1 interface). The near-RT RIC 325 may be configured to include logic functions that enable near-real-time control and optimization of RAN elements and resources via data collection and actions through an interface (such as via an E2 interface) that connects one or more CUs 310, one or more DUs 330, or both, and the O-eNB with the near-RT RIC 325.
[0078] In some implementations, in order to generate an AI / ML model to be deployed in the near-RT RIC 325, the non-RT RIC 315 may receive parameters or external enrichment information from an external server. This information may be utilized by the near-RT RIC 325 and may be received from a non-network data source or from a network function at the SMO framework 305 or the non-RT RIC 315. In some examples, the non-RT RIC 315 or the near-RT RIC 325 may be configured to tune RAN behavior or performance. For example, the non-RT RIC 315 may monitor long-term trends and patterns of performance and employ AI / ML models to perform corrective actions through the SMO framework 305 (such as via reconfiguration of the O1 interface) or via the creation of RAN management policies (such as A1 interface policies).
[0079] As indicated above, Figure 3 are provided as examples. Other examples can be found in the Figure 3 Different than described.
[0080] Figure 4 4 is a diagram illustrating an example 400 of physical channels and reference signals in a wireless network according to the present disclosure. Figure 4 As shown, the downlink channel and the downlink reference signal may carry information from the network entity 110 to the UE 120 , and the uplink channel and the uplink reference signal may carry information from the UE 120 to the network entity 110 .
[0081] As shown, the downlink channel may include a physical downlink control channel (PDCCH) carrying downlink control information (DCI), a physical downlink shared channel (PDSCH) carrying downlink data, or a physical broadcast channel (PBCH) carrying system information, etc. In some aspects, PDSCH communication may be scheduled by PDCCH communication. As further shown, the uplink channel may include a physical uplink control channel (PUCCH) carrying uplink control information (UCI), a physical uplink shared channel (PUSCH) carrying uplink data, or a physical random access channel (PRACH) for initial network access, etc. In some aspects, UE 120 may send confirmation (ACK) or negative confirmation (NACK) feedback (e.g., ACK / NACK feedback or ACK / NACK information) in the UCI on PUCCH and / or PUSCH.
[0082] As further shown in the figure, the downlink reference signal may include a synchronization signal block (SSB), a channel state information (CSI) reference signal (CSI-RS), a demodulation reference signal (DMRS), a positioning reference signal (PRS) or a phase tracking reference signal (PTRS), etc. As also shown in the figure, the uplink reference signal may include a sounding reference signal (SRS), a DMRS, or a PTRS, etc.
[0083] The SSB may carry information used for initial network acquisition and synchronization, such as a primary synchronization signal (PSS), a secondary synchronization signal (SSS), a PBCH, and a PBCH DMRS. The SSB is sometimes referred to as a synchronization signal / PBCH (SS / PBCH) block. In some aspects, the network entity 110 may send multiple SSBs on multiple corresponding beams, and the SSBs may be used for beam selection.
[0084] The CSI-RS may carry information for downlink channel estimation (e.g., downlink CSI acquisition), which may be used for scheduling, link adaptation, or beam management, etc. The network entity 110 may configure a CSI-RS set for the UE 120, and the UE 120 may measure the configured CSI-RS set. Based at least in part on these measurements, the UE 120 may perform channel estimation and may report channel estimation parameters such as a channel quality indicator (CQI), a precoding matrix indicator (PMI), a CSI-RS resource indicator (CRI), a layer indicator (LI), a rank indicator (RI), or a reference signal received power (RSRP), etc., to the network entity 110 (e.g., in a CSI report). The network entity 110 may use the CSI reports to select transmission parameters for downlink communications to the UE 120, such as the number of transmission layers (e.g., rank), a precoding matrix (e.g., a precoder), a modulation and coding scheme (MCS), or a refined downlink beam (e.g., using a beam refinement procedure or a beam management procedure), etc.
[0085] DMRS can carry information used to estimate the radio channel to demodulate the associated physical channel (e.g., PDCCH, PDSCH, PBCH, PUCCH, or PUSCH). The design and mapping of DMRS can be specific to the physical channel that the DMRS is used to estimate. DMRS is UE-specific, can be beamformed, can be restricted to scheduled resources (e.g., instead of being sent over a wideband), and can be sent only when necessary. As shown, DMRS is used for both downlink and uplink communications.
[0086] PTRS can carry information for compensating for oscillator phase noise. Typically, phase noise increases with the increase of the oscillator carrier frequency. Therefore, PTRS can be used at high carrier frequencies (such as millimeter wave frequencies) to mitigate phase noise. PTRS can be used to track the phase of the local oscillator and to achieve suppression of phase noise and common phase error (CPE). As shown, PTRS is used for both downlink communications (e.g., on PDSCH) and uplink communications (e.g., on PUSCH).
[0087] The PRS may carry information for implementing timing or ranging measurements of the UE 120 based on signals sent by the network entity 110 to improve observed time difference of arrival (OTDOA) positioning performance. For example, the PRS may be a pseudo-random quadrature phase shift keying (QPSK) sequence mapped in a diagonal pattern with a frequency offset and a time offset to avoid conflicts with cell-specific reference signals and control channels (e.g., PDCCH). In general, the PRS may be designed to improve the detectability of the UE 120, which may need to detect downlink signals from multiple neighboring network entities in order to perform OTDOA-based positioning. Therefore, the UE 120 may receive the PRS from multiple cells (e.g., a reference cell and one or more neighboring cells), and may report a reference signal time difference (RSTD) based on the OTDOA measurements associated with the PRS received from the multiple cells. In some aspects, the network entity 110 may then calculate the position of the UE 120 based on the RSTD measurements reported by the UE 120.
[0088] The SRS may carry information for uplink channel estimation, which may be used for scheduling, link adaptation, pre-decoder selection, or beam management, etc. The network entity 110 may configure one or more SRS resource sets for the UE 120, and the UE 120 may send the SRS on the configured SRS resource sets. The SRS resource sets may have configured usages, such as uplink CSI acquisition, downlink CSI acquisition for reciprocity-based operation, uplink beam management, etc. The network entity 110 may measure the SRS, may perform channel estimation based at least in part on these measurements, and may use the SRS measurements to configure communications with the UE 120.
[0089] As indicated above, Figure 4 are provided as examples. Other examples can be found in the Figure 4 Different than described.
[0090] Figure 5 5 is a diagram illustrating an example 500 of multi-TRP communication according to the present disclosure. Multi-TRP communication may sometimes be referred to as multi-panel communication. Figure 5As shown, multiple TRPs 505 can communicate with the same UE 120.
[0091] TRP 505 may be a DU or RU of a distributed RAN. In some aspects, TRP 505 may correspond to the above combined Figure 1 The network entity 110 described herein. For example, different TRPs 505 may be included in different network entities 110. Additionally or alternatively, multiple TRPs 505 may be included in a single network entity 110. In some aspects, the network entity 110 may include a CU and / or one or more DUs or RUs (e.g., one or more TRPs 505). In some cases, the TRP 505 may be referred to as a cell, a panel, an antenna array, or an array. Therefore, as used herein, "TRP" may refer to a network entity, a DU, a RU, a cell, an antenna panel, an antenna array, and / or an array, etc. The TRP 505 may be connected to a single access node controller (e.g., a single CU or a single DU) or to multiple access node controllers (e.g., multiple CUs or DUs). In some aspects, the PDCP layer, the RLC layer, and / or the MAC layer may be configured to terminate at the CU, at the DU, or at the TRP 505.
[0092] In some aspects, multiple TRPs 505 may transmit communications (e.g., the same communication or different communications) in the same transmit time interval (TTI) (e.g., time slot, mini-slot, subframe, or symbol) or in different TTIs using different quasi-co-location (QCL) relationships (e.g., different spatial parameters, different transmit configuration indicator (TCI) states, different pre-coding parameters, and / or different beamforming parameters). In some aspects, the TCI state may be used to indicate one or more QCL relationships. A TRP 505 may be configured to provide services to a UE 120 individually (e.g., using dynamic selection) or jointly (e.g., using joint transmission with one or more other TRPs 505).
[0093] Multiple TRPs 505 (shown as TRP A and TRP B) may communicate with the same UE 120 in a coordinated manner (eg, using coordinated multipoint transmission) to improve reliability and / or increase throughput. Figure 5Two TRPs are shown in FIG, but the UE 120 may communicate with more than two TRPs (such as four TRPs) in a similar manner as described herein. The TRPs 505 may coordinate such communications via an interface between the TRPs 505 (e.g., a backhaul interface and / or an access node controller or CU). When the TRPs 505 are co-located at the same network entity 110 (e.g., when the TRPs 505 are different antenna arrays or panels of the same network entity 110), the interface may have less latency and / or higher capacity, and when the TRPs 505 are located at different network entities 110, the interface may have greater latency and / or lower capacity (compared to co-location). Different TRPs 505 may communicate with the UE 120 using different QCL relationships (e.g., different TCI states), DMRS ports, and / or different layers (e.g., different layers in a multi-layer communication).
[0094] In a first multi-TRP transmission mode (e.g., Mode 1), a single PDCCH may be used to schedule downlink data communications for a single PDSCH. In this case, multiple TRPs 505 (e.g., TRP A and TRP B) may transmit communications to UE120 on the same PDSCH. For example, communications may be transmitted using a single codeword with different spatial layers for different TRPs 505 (e.g., one of the codewords is mapped to a first set of layers transmitted by a first TRP 505 and is mapped to a second set of layers transmitted by a second TRP 505). As another example, communications may be transmitted using multiple codewords, with different codewords being transmitted by different TRPs 505 (e.g., using different sets of layers). In either case, different TRPs 505 may use different QCL relationships (e.g., different TCI states) for different DMRS ports corresponding to different layers. For example, the first TRP 505 may use a first QCL relationship or a first TCI state for a first DMRS port set corresponding to a first layer set, and the second TRP 505 may use a second (different) QCL relationship or a second (different) TCI state for a second (different) DMRS port set corresponding to a second (different) layer set. In some aspects, the TCI state in the downlink control information (DCI) (e.g., sent on the PDCCH, such as DCI format 1_0 or DCI format 1_1) may indicate a first QCL relationship (e.g., by indicating a first TCI state) and a second QCL relationship (e.g., by indicating a second TCI state). The first TCI state and the second TCI state may be indicated using a TCI field in the DCI. Typically, in this multi-TRP transmission mode (e.g., mode 1), the TCI field may indicate a single TCI state (for single TRP transmission) or multiple TCI states (for multi-TRP transmission as discussed herein).
[0095] In a second multi-TRP transmission mode (e.g., Mode 2), multiple PDCCHs may be used to schedule downlink data communications for multiple corresponding PDSCHs (e.g., one PDCCH for each PDSCH). In this case, the first PDCCH may schedule a first codeword to be sent by the first TRP 505, and the second PDCCH may schedule a second codeword to be sent by the second TRP 505. In addition, a first DCI (e.g., sent by the first TRP 505) may schedule a first PDSCH communication associated with a first DMRS port set having a first QCL relationship (e.g., indicated by a first TCI state) for the first TRP 505, and a second DCI (e.g., sent by the second TRP 505) may schedule a second PDSCH communication associated with a second DMRS port set having a second QCL relationship (e.g., indicated by a second TCI state) for the second TRP 505. In this case, the DCI (e.g., having DCI format 1_0 or DCI format 1_1) may indicate a corresponding TCI state corresponding to the DCI for the TRP 505. The TCI field of the DCI indicates the corresponding TCI state (e.g., the TCI field of the first DCI indicates the first TCI state and the TCI field of the second DCI indicates the second TCI state).
[0096] In some cases, a multi-TRP scenario may be associated with two TRPs (e.g., Figure 5 For example, a wireless communication standard may define or otherwise fix that a multi-TRP scenario may be associated with two TRPs (e.g., Release 17 or earlier of the 3GPP technical specification may define a configuration or operation that assumes the number of TRPs is limited to or fixed to two TRPs). However, in future deployments, the number of TRPs in a multi-TRP scenario may be greater than two, such as three TRPs, four TRPs, or more TRPs.
[0097] As indicated above, Figure 5 are provided as examples. Other examples can be found in Figure 5 The content described is different.
[0098] Figure 6 6 is a diagram illustrating an example 600 of coherent joint transmission and non-coherent joint transmission for multi-TRP communication according to the present disclosure. Figure 6 As shown, TRPs 505 (TRP A and TRP B) may communicate with the same UE 120 in a coordinated manner (eg, using coordinated multipoint transmission) to communicate with the same UE 120 in a manner consistent with the combined Figure 5 Similar approaches as described above can be used to improve reliability and / or increase throughput. Figure 6As shown in FIG. 1 , TRP A may send a first data communication 605 to UE 120. TRP B may send a second data communication 610 to UE 120. The first data communication 605 and the second data communication 610 may be jointly sent to UE 120 (e.g., using the same time-frequency resources). For example, the first data communication 605 and the second data communication 610 may be sent using a non-coherent joint transmission (NCJT) operation 615 or a coherent joint transmission (CJT) operation 620.
[0099] NCJT operation 615 may also be referred to as an operation based on spatial division multiplexing (SDM). "NCJT" or "non-coherent joint transmission" may refer to a scenario in which data from different TRPs are pre-coded separately for different TRPs. In some examples, the NCJT operation may be associated with an open-loop pre-coding technique. In some examples, the NCJT operation 615 may be performed when phase synchronization across multiple TRPs (e.g., TRP A and TRP B) cannot be achieved (e.g., when the TRPs are driven by different clocks and / or when the antenna ports of the TRPs are not quasi-co-located, etc.). For example, data for UE 120 may be pre-coded separately on different TRPs. Figure 6 As shown, TRP A can be associated with N1 antenna ports, and TRP B can be associated with N2 antenna ports. In some examples, N1 can be equal to N2.
[0100] As described above, NCJT can be used when phase synchronization between different TRPs cannot be achieved or is not easily achieved. For NCJT, separate predecoder designs need to be used at different TRPs or different groups of TRPs. In other words, without phase synchronization, the predecoder must be configured separately within each TRP (e.g., a single TRP or a virtual TRP that includes a group of TRPs that can achieve phase synchronization), which means that each TRP operates separately with respect to the predecoder design. For example, Figure 6 As shown, TRP A may be associated with a single layer (e.g., a single spatial layer) and N1 antenna ports. TRP B may be associated with two layers (e.g., two spatial layers) and N2 antenna ports. This may result in 3 layers and N1+N2 antenna ports.
[0101] For example, the pre-decoder for TRP A can be used with (N1×RI TRP ) is associated with RI TRP is the rank indicator for TRP A (e.g., indicating the number of layers associated with TRP A). For example, assume that for TRP A, N1 has a value of 4 and RI TRP With a value of 1, the pre-decoder design for TRP A (e.g., V A) can be associated with a 4×1 matrix. The pre-decoder for TRP B can be associated with (N2×RI TRP ) is associated with RI TRP is a rank indicator for TRP B (e.g., indicating the number of layers associated with TRP B). For example, assume that for TRP B, N1 has a value of 4 and RI TRP With a value of 2, the pre-decoder design for TRP A (e.g., V B ) can be associated with a 4×2 matrix. For example, the pre-coding for NCJT can be expressed as Where V A is the pre-decoder for TRP A, V B is the pre-decoder for TRP B, X A is the data to be sent by TRP A (eg, associated with a 1×1 matrix for the first data communication 605), and X B is the data to be sent by TRP B (eg, associated with a 2x1 matrix for the second data communication 610).
[0102] "CJT" or "coherent joint transmission" may refer to a scenario in which data from different TRPs are jointly pre-decoded. In some examples, CJT operations may be associated with closed-loop pre-decoding techniques. In some examples, CJT operation 620 may be performed when phase synchronization across multiple TRPs (e.g., TRPA and TRP B) can be achieved. For example, when phase synchronization across a group of TRPs can be achieved (e.g., when the TRPs are driven by the same clock, and / or when the antenna ports associated with the group of TRPs are quasi-co-located, etc.), coherent joint transmission can be achieved, allowing a joint pre-decoder design to be used by the group of TRPs (e.g., by TRP A and TRP B). In this case, the TRP group can be considered to be a single (e.g., virtual) TRP in which a coherent pre-decoder is configured. Therefore, CJT can be a beamforming for which the antennas participating in the beamforming are not located at the same location but correspond to different TRPs. In some cases, CJT may also be referred to as joint transmission or in-phase transmission. In some examples, zero-forcing beamforming, block diagonal zero-forcing (BD-ZF) precoding, zero-steering precoding, and / or other joint precoding techniques may be used for the CJT operation 620 .
[0103] For example, Figure 6 As shown, the first data communication 605 and the second data communication 610 can be jointly transmitted as two layers (e.g., instead of three layers used in the NCJT operation 615). For example, the pre-decoder design can be based at least in part on the maximum RI (e.g., the highest number of layers between TRP A and TRP B). For example, the pre-decoder design can be based at least in part on (N T ×RIMAX ), where N T is the number of antenna ports associated with TRP A and TRP B (e.g., may be a value of N1+N2), and RI MAX is the maximum RI between the RIs associated with TRP A and TRP B (e.g., 2 in this example). Therefore, the pre-decoder design for TRPA (e.g., V A ) can be associated with a 4×2 matrix and used for the pre-decoder design of TRP B (e.g., V B ) can be associated with the same 4×2 matrix. For example, Figure 6 As shown, since TRP A is associated with a single layer, the pre-decoder design for TRP A (e.g., V A ) can be filled with zeros. For example, the pre-coding for NCJT can be expressed as Where V A is the pre-decoder for TRP A, V B is the precoder for TRP B, and X is the data to be jointly transmitted. In this example, the data X may be associated with a 2×1 matrix (e.g., based on RI MAX is 2).
[0104] As indicated above, Figure 6 are provided as examples. Other examples can be found in Figure 6 The content described is different.
[0105] Figure 7 is a diagram illustrating an example 700 of a CSI hypothesis configuration for non-coherent joint transmission for multi-TRP communication according to the present disclosure. As used herein, "CSI hypothesis" may refer to a configuration of measurement resources (e.g., channel measurement resources (CMR) and / or interference measurement resources (IMR)) that are expected to provide insight into the channel conditions of a given channel (e.g., when measured by UE 120). For example, UE 120 may measure CMRs and / or IMRs associated with a CSI hypothesis to perform channel estimation for a given channel. The CMRs and / or IMRs may be CSI-RS resources and / or other reference signal resources.
[0106] For example, a single TRP (sTRP) CSI assumption and a multi-TRP (mTRP) CSI assumption may be configured for UE 120. The sTRP CSI assumption and the mTRP CSI assumption may be applicable to a single panel codebook, such as a type I single panel codebook (e.g., as defined by a wireless communication standard such as 3GPP or otherwise fixed). In other words, UE 120 may be configured to perform NCJT CSI estimation using the configured CSI assumptions.
[0107] For example, UE 120 may be configured with CSI-RS resource set 705. CSI-RS resource set 705 may be associated with a first group 710 and a second group 715. The first group 710 and / or the second group 715 may be referred to as a CMR group. Figure 7 As shown, each group may be associated with a corresponding TRP. For example, the first group 710 may be associated with TRP A, and the second group 715 may be associated with TRP B. In other words, the first group 710 may include CMRs associated with TRP A, and the second group 715 may include CMRs associated with TRP B.
[0108] In some examples, one or more pairs of CMRs may be configured for the mTRP hypothesis. For example, N CMR pairs may be configured. In some cases, N may be less than or equal to 2 (e.g., where the number of TRPs is limited or fixed to 2). The CMR pair may include a first CMR from the first group 710 and a second CMR from the second group 715. Figure 7 In the example shown in , N is 2. For example, the first CMR pair 720 may include a first CMR from the first group 710 and a first CMR from the second group 715. The second CMR pair 725 may include a second CMR from the first group 710 and a second CMR from the second group 715. The CMR pairs may be configured as part of an mTRP CSI hypothesis (e.g., the UE 120 may measure each CMR to obtain channel information associated with each of a plurality of TRPs).
[0109] In addition, if Figure 7 As shown, the groups may include one or more CMRs associated with sTRP CSI estimates. For example, an sTRP CMR may be a single CMR associated with a given TRP (e.g., for channel estimates associated only with that given TRP). For example, M sTRP hypotheses may be configured for two TRPs (TRP A and TRP B) (e.g., M may or may not include N mTRPCMRs). For example, a first group 710 may include M1 sTRP CMRs, and a second group 715 may include M2 sTRP CMRs.
[0110] In addition to one or more CMRs, a CSI hypothesis may also be associated with one or more IMRs (e.g., associated with measuring interference associated with a channel). In some cases, one (e.g., a single) IMR may be configured for each CSI hypothesis. For example, N+M IMRs may be configured for a CSI-RS resource set 705.
[0111] UE 120 may measure measurement resources associated with CSI assumptions. UE 120 may send a CSI report indicating information associated with these measurements to one or more TRPs or to a network entity associated with these TRPs. For example, for an mTRPCSI assumption, UE 120 may report two PMIs, two RIs, and one CQI associated with a given mTRP CSI assumption. In some aspects, UE 120 may send an indication of a CRI associated with one or more of the configured CSI assumptions. For example, UE 120 may report the best mTRP CSI assumption (e.g., the mTRP CSI assumption associated with the best measurement value) and Y best sTRP CSI assumptions by indicating the CRI associated with the corresponding CSI assumptions. The value of Y may be the RRC configured for UE 120. For example, Y may be configured to have a value of 0, 1, 2, or other value. When Y is associated with a value of 2, the sTRP assumptions of the first and second reports may come from the first group 710 and the second group 715, respectively. In other words, UE 120 may report the best sTRP CSI hypothesis from the first group 710 and the best sTRP CSI hypothesis from the second group 715. For example, when Y=0, UE 120 may report one CRI with log2N bits. When Y=1, UE 120 may report two CRIs, where the first CRI has log2N bits and the second CRI has log2(M1+M2) bits. When Y=2, UE 120 may report three CRIs, where the first CRI has log2N bits, the second CRI has log2(M1) bits, and the third CRI has log2(M2) bits.
[0112] In some other aspects, UE 120 may report the best CSI hypothesis (e.g., by reporting the associated CRI) from all configured CSI hypotheses (e.g., including mTRP hypothesis and sTRP hypothesis). For example, UE 120 may report a single CRI having log2(N+M1+M2) bits.
[0113] As described elsewhere herein, some wireless network deployments may include more than two TRPs for communicating with a given UE. For example, additional TRPs may be required to enable a TRP and / or UE to communicate via a greater number of ports (e.g., antenna ports). For example, a single TRP or panel with a large number of ports (e.g., 32 ports) may result in an antenna array size that is not practical for a practical deployment. Therefore, the large number of ports may be distributed among multiple TRPs (e.g., three TRPs, four TRPs, or more TRPs).
[0114] In addition, as described above, in some wireless network deployments, CJT may be used between multiple TRPs to improve network resource utilization. However, there is currently no mechanism or operation defined for the UE to report detailed channel knowledge of multiple TRPs associated with CJT. In addition, deployments with more than two TRPs present additional complexity for CSI reporting and acquisition because there is an increased number of possible channels to be measured and / or reported (e.g., there are more possible combinations, such as four TRP channels and / or three TRP channels, etc.). In addition, there is currently no mechanism or operation defined for the UE to report CSI of CJT associated with a type II codebook (e.g., currently only CSI reports associated with a type I codebook, a single beam, a single antenna, or a single transmit configuration indicator (TCI) state are defined). A type II codebook may be associated with multiple beams, multiple antennas, and / or multiple TCI states, thereby introducing additional complexity for defining CSI reporting and acquisition associated with a type II codebook. Therefore, it is necessary to define additional CSI assumption configuration mechanisms and / or CSI reporting mechanisms for CJT mTRP operations.
[0115] Some techniques and apparatus described herein implement CSI hypothesis configuration for CJT scenarios. For example, a UE 120 may receive configuration information indicating a set of CSI hypotheses associated with a CJT CSI estimate. The UE 120 may send a CSI report indicating one or more CRIs associated with one or more CSI hypotheses in the CSI hypothesis set. In some aspects, each of the one or more CRIs is associated with a corresponding CSI hypothesis from the one or more CSI hypotheses. In some aspects, the CSI hypothesis set may be configured at the CSI-RS resource level within a CSI-RS resource set. In some other aspects, the CSI hypothesis set may be configured at the port group level within a single CSI-RS resource. For example, within a CSI-RS resource set, a UE may be configured with CSI hypotheses with different TRP combinations to report type IICJT CSI (e.g., CSI estimation information associated with CJT and type II codebook).
[0116] Thus, the UE 120 may be enabled to identify the CMR and / or IMR to be measured for various TRP combinations. This may enable the UE 120 to measure the CSI associated with various CJT channels from multiple TRPs. In addition, the UE 120 may be enabled to report one or more CRIs, each CRI being associated with one of the CSI assumptions. This may enable the network (e.g., a network entity) to identify the best TRP combination to serve the UE 120 for the CJT scenario. Thus, the network entity may be enabled to make better determinations regarding various transmit parameters (e.g., transmit power, rank, number of layers, etc.) of mTRP CJT communications associated with the UE 120. This may improve the performance of mTRP CJT communications and improve network resource utilization (e.g., by enabling multiple TRPs to effectively communicate with the UE 120 using mTRP CJT communications).
[0117] As indicated above, Figure 7 are provided as examples. Other examples can be found in Figure 7 The content described is different.
[0118] Figure 8 8 is a diagram of an example 800 associated with a CSI assumption configuration for a CJT scenario according to the present disclosure. Figure 8 As shown, a network entity (e.g., network entity 110) may communicate with a UE (e.g., UE 120). In some aspects, network entity 110 and UE 120 may be part of a wireless network (e.g., wireless network 100). UE 120 and network entity 110 may be in communication with each other. Figure 8 A wireless connection has been established before the operation shown. The network entity 110 and the UE 120 may communicate via multiple TRPs (e.g., TRP A, TRP B, TRP C, and / or TRP D, etc.). For example, multiple TRPs may be associated with the network entity 110. Alternatively, the first one or more of the TRPs may be associated with the network entity 110, and the second one or more of the TRPs may be associated with another network entity. For example, the network entity 110 may be a DU, and the TRP may be a RU. As another example, the network entity 110 may be a CU, and the TRP may be a DU or a RU. As another example, the TRP may be an antenna panel or an antenna array for the network entity 110 distributed in the wireless network 100. Although examples associated with CSI-RS resources configured as CMR and / or IMR for UE 120 are described herein, other reference signals may be configured as CMR and / or IMR for UE 120 in a similar manner as described herein (e.g., a CSI-RS resource set or a CSI-RS resource may be a resource set or resource for other reference signals).
[0119] As indicated by reference numeral 805, network entity 110 may send configuration information for UE 120 (e.g., to UE 120, to another network entity, or to a TRP). UE 120 may receive the configuration information (e.g., from network entity 110, from another network entity, or from a TRP). In some aspects, UE 120 may receive the configuration information via one or more of RRC signaling, one or more MAC control elements (MAC-CEs), and / or DCI, etc. In some aspects, the configuration information may include an indication of one or more configuration parameters for selection by UE 120 (e.g., stored by UE 120 and / or previously indicated by network entity 110 or another network device), and / or explicit configuration information for UE 120 to configure itself, etc.
[0120] In some aspects, the configuration information may indicate that the UE 120 is to perform CJT CSI estimation associated with the mTRP operation. In some aspects, the configuration information may indicate a set of CSI assumptions associated with the CJT CSI estimation. For example, a CSI assumption from the CSI assumption set may include one or more CMRs and / or configurations of one or more IMRs associated with the one or more CMRs. For example, the configuration information may indicate a CSI assumption (e.g., a CMR and / or IMR configuration) for mTRP CJT CSI estimation. In some aspects, the configuration information may be associated with a CSI-RS resource set configuration. For example, the CSI assumption may be indicated or configured via a CSI-RS resource set configuration. In some aspects, a CSI-RS resource set may be associated only with a CJT CSI estimation. In some other aspects, a CSI-RS resource set may be associated only with both a CJT CSI estimation and a NCJT CSI estimation.
[0121] In some aspects, the CSI-RS resource set configuration includes a configuration for a CSI-RS resource set. A CSI hypothesis set may be associated with different CSI-RS resources from the CSI-RS resource set. For example, one or more CSI-RS resources may be configured as one or more CMRs for a CSI hypothesis. In other words, CMRs for a CSI hypothesis set may be configured on a CSI-RS resource basis (e.g., a first CMR may be defined as a first CSI-RS resource, and a second CMR may be defined as a second CSI-RS resource).
[0122] In some aspects, a CSI-RS resource set may be associated with one or more CMR groups that are associated with corresponding TRPs associated with the network entity 110. For example, a single CMR group may be associated with a single TRP. For example, assuming four TRPs (e.g., TRP A, TRP B, TRP C, and TRP D), a CSI-RS resource set may be associated with four CMR groups. For example, a first CMR group may include CMRs associated with TRP A, a second CMR group may include CMRs associated with TRP B, a third CMR group may include CMRs associated with TRP C, and a fourth CMR group may include CMRs associated with TRP D. Each CMR group may include one or more CSI-RS resources (e.g., included in a CSI-RS resource set) configured as mTRP CMRs or sTRP CMRs associated with a given TRP. In such examples, a CSI hypothesis from a CSI hypothesis set may include a configuration of CMRs from each CMR group in one or more CMR groups and a configuration of IMRs associated with the CSI hypothesis. In other words, the CJTCSI hypothesis may include CMRs from the first CMR group, CMRs from the second CMR group, CMRs from the third CMR group, CMRs from the fourth CMR group, and so on.
[0123] In such an example, each of the one or more CMR groups includes a first number (e.g., N) of CMRs associated with a multi-TRP CSI estimate. In other words, each CMR group may include the same number of multi-TRP CMRs (e.g., one, two, or another number). Alternatively, each of the one or more CMR groups includes a first number or a second number of CMRs associated with a single TRP CSI estimate. In some aspects, the CMR groups may include the same number of sTRP CMRs or different numbers of sTRP CMRs. For example, each CMR group may include M sTRP CMRs. Alternatively, the first CMR group may include M1 sTRPCMRs, the second CMR group may include M2 sTRP CMRs, the third CMR group may include M3 sTRP CMRs, and the fourth CMR group may include M4 sTRP CMRs. Therefore, the configuration information may indicate N+M1+M2+M3+M4 CSI assumptions. In addition, the configuration information may indicate N+M1+M2+M3+M4 IMR configurations. In other words, each CMR combination or each sTRP CMR may be associated with an IMR (eg, to configure a CSI hypothesis). Fig. 9 Depicted are examples of CMR group, CJT CSI hypothesis configurations based on CSI-RS resources.
[0124] As another example of a CSI-RS resource-based CJT CSI assumption configuration, a CSI-RS resource set may be associated with a CMR (e.g., CSI-RS resource) set that is associated with a corresponding TRP associated with the network entity 110. In other words, instead of a CMR group being associated with a corresponding TRP (e.g., as described above), a CMR set (e.g., CSI-RS resource) may be associated with a corresponding TRP. For example, a single CMR from a CMR set may be associated with a single TRP. Assuming four TRPs (e.g., TRP A, TRP B, TRP C, and TRP D), a CSI-RS resource set may be associated with four CMRs. For example, a first CMR may be associated with TRP A, a second CMR may be associated with TRP B, a third CMR group may be associated with TRP C, and a fourth CMR may be associated with TRP D. For example, within a CMR set (e.g., a CSI-RS resource set), one CMR may correspond to one TRP.
[0125] In such examples, the configuration information includes an indication of one or more CMRs from a CMR set, the one or more CMRs being included in a corresponding CSI assumption from a CSI assumption set. For example, a combination of CMRs is configured (e.g., by a bitmap) for an mTRP CSI assumption or an sTRP CSI assumption. For example, an indication of one or more CMRs may include a bitmap. For example, a bit in a bitmap may be mapped to or associated with a given CMR included in a CSI-RS resource set. The configuration information may indicate one or more bitmaps to configure one or more CJT CSI assumptions (e.g., one bitmap may configure one CSI assumption). For example, the configuration information may indicate bitmaps {1111}, {1111}, {1011}, {1010}, {1000}, {0100}, {0010}, and {0001} to configure eight CSI assumptions. For example, assuming a CSI-RS resource set of {CMR 1 (TRP A), CMR 2 (TRP B), CMR 3 (TRPC), CMR 4 (TRP D)}, the bitmap may configure {A, B, C, D} (e.g., mTRP CSI assumptions associated with TRP A, TRP B, TRP C, and TRP D), {A, B, C, D} (e.g., mTRP CSI assumptions associated with TRP A, TRP B, TRP C, and TRP D), {A, C} (e.g., mTRP CSI assumptions associated with TRP A, TRP C, and TRP D), {A} (e.g., sTRP CSI assumptions associated with TRP A), {B} (e.g., sTRP CSI assumptions associated with TRP B), {C} (e.g., sTRP CSI assumptions associated with TRP C), The configuration information may indicate a combination of {CSI hypothesis {D} (e.g., sTRP CSI hypothesis associated with TRP D). As described above, the configuration information may indicate the same bitmap (e.g., {1111}) for two or more CSI hypotheses. In such examples, the two or more CSI hypotheses may be distinguished by being associated with different IMRs. For example, a first CSI hypothesis associated with a CMR set may be associated with a first IMR, and a second CSI hypothesis associated with a CMR set may be associated with a second IMR. For example, for the above eight bitmaps, eight IMRs may be configured by the network entity 110. Fig.10 Depicted are examples of CMR, CJT CSI hypothesis configurations based on CSI-RS resources.
[0126] As another example, a CSI hypothesis set may be associated with different antenna port groups. For example, a CSI hypothesis may be configured on the basis of a port group (e.g., an antenna port group or a CSI-RS port group). A port group may include one or more ports. For example, a CSI-RS resource set may be associated with a CMR set associated with different numbers of antenna ports. For example, a CSI-RS resource set may include a first one or more CMRs (e.g., first one or more CSI-RS resources) associated with a first number of ports (e.g., 32 ports), a second one or more CMRs (e.g., second one or more CSI-RS resources) associated with a second number of ports (e.g., 24 ports), a third one or more CMRs (e.g., third one or more CSI-RS resources) associated with a third number of ports (e.g., 16 ports) and / or a fourth one or more CMRs (e.g., fourth one or more CSI-RS resources) associated with a fourth number of ports (e.g., 8 ports), and so on. In some examples, the number of ports associated with a given CMR may correspond to the number of TRPs associated with a given CMR. For example, a port group may include 8 ports. Thus, a CMR associated with 32 ports may be associated with four port groups and four TRPs. A CMR associated with 24 ports may be associated with three port groups and three TRPs. A CMR associated with 16 ports may be associated with two port groups and two TRPs. A CMR associated with 8 ports may be associated with one port group and one TRP (e.g., a single TRP).
[0127] For example, a CSI-RS resource set may include one or more CMRs having a number of ports corresponding to a single port group (or a single TRP) for each TRP associated with UE 120. A CSI-RS resource set may include one or more CMRs having a number of ports corresponding to four port groups (e.g., four TRPs). As another example, a CSI-RS resource set may include one or more CMRs having a number of ports corresponding to three port groups (e.g., three TRPs), wherein each CMR is associated with a different combination of three TRPs from four or more TRPs associated with UE 120. In some aspects, different CMRs having the same number of ports may be configured for different CSI hypotheses (e.g., different CMRs are associated with different IMRs). For example, a first CSI hypothesis from a CSI hypothesis set may include a first CMR from a CMR set associated with a first number of antenna ports, and a first IMR. A second CSI hypothesis from a CSI hypothesis set may include a second CMR from a CMR set associated with a second number of antenna ports, and a second IMR. For another example, a third CSI hypothesis from the set of CSI hypotheses may include a first CMR from the set of CMRs associated with a first number of antenna ports and a first IMR. A fourth CSI hypothesis from the set of CSI hypotheses may include the first CMR and the second IMR.
[0128] In such examples, UE 120 may not know (e.g., may not receive an indication) which CMR is associated with which TRP. In other words, which TRPs are associated with which CMRs and / or port groups may be transparent to UE 120. Instead, UE 120 may measure the CMRs and report one or more CRIs (e.g., associated with the best one or more measurements from the set of CSI hypotheses) to network entity 110. Network entity 110 may identify a TRP combination for CJT of UE 120 based at least in part on the reported one or more CRIs. Fig.11 Depicted are examples of CMR, CJT CSI hypothetical configurations based on port groups.
[0129] As another example of a port group based CJT CSI hypothesis configuration, the configuration information may include a configuration for a CSI-RS resource as a CMR for CJT. In other words, a single CMR (e.g., a single CSI-RS resource) may be configured for UE 120 to perform CJT CSI estimation. The CSI-RS resource may be associated with a port group set (e.g., an antenna port group set and / or a CSI-RS port group set). An antenna port group from the antenna port group set may be associated with one TRP from a plurality of TRPs associated with the network entity 110 and / or the UE 120. For example, a single antenna port group may be associated with a single TRP. In such an example, a CSI hypothesis from a CSI hypothesis set includes one or more antenna port groups from the antenna port group set and a configuration of an IMR associated with the CSI hypothesis.
[0130] For example, the configuration information may include an indication of one or more antenna port groups associated with the CSI hypothesis from the set of antenna port groups. In some aspects, the indication of one or more antenna port groups may include a bitmap. For example, in a manner similar to that described above, the configuration information may indicate a bitmap for each CSI hypothesis, wherein the bitmap associated with a given CSI hypothesis indicates the antenna port group (e.g., of the CMR) associated with the given CSI hypothesis. For example, within a CMR, one port group corresponds to one TRP. A combination of port groups may be configured for an mTRP or sTRP CSI hypothesis (e.g., via a bitmap). In addition, the configuration information may indicate that a CMR is mapped to one IMR or multiple IMRs (e.g., so that different CSI assumptions can be configured for the same antenna port group). Fig.12 An example of this CMR, port group based CJT CSI hypothetical configuration is depicted.
[0131] In some aspects, the configuration information may indicate that the CSI-RS resource set is associated with both the CJT CSI estimation and the NCJT CSI estimation. For example, the CSI-RS resource set may be associated with 2 levels of CSI estimation. For the first level associated with the CJT CSI estimation, the CSI-RS resource set may include a CMR group set, each CMR group from the CMR group set is associated with a corresponding TRP associated with the network entity 110 and / or the UE 120. Each CMR group may include one or more CMRs associated with the mTRP CSI estimation and one or more CMRs associated with the sTRP CSI estimation. The configuration information may indicate that the CSI-RS resource set is associated with one or more CJT groups, each CJT group from the one or more CJT groups includes one or more CMR groups from the CMR group set. For example, the first one or more CMR groups may be included in the first CJT group and the second one or more CMR groups may be associated with the second CJT group. The first CSI hypothesis from the CSI hypothesis set associated with the CJT CSI estimation may include one or more CMRs from different CMR groups included in the same CJT group. In other words, the mTRP CJT CSI hypothesis may be configured to include CMRs from different CMR groups included in the same CJT group.
[0132] A CJT group may be defined as a combination of CMR groups. For example, the network entity 110 may determine a CJT group based at least in part on which TRPs can achieve phase coherence together. For example, the network entity 110 may group CMR groups corresponding to TRPs that can achieve phase coherence together in the same CJT group. A second CSI hypothesis associated with a non-CJT CSI estimate may include one or more CMRs from a different CJT group. For example, a NCJT CSI hypothesis may include a first CMR from a first CMR group and a second CMR from a second CMR group, wherein the first CMR group and the second CMR group are included in different CJT groups. For example, TRPs associated with CMR groups in different CJT groups may not be able to achieve phase coherence (e.g., and are therefore associated with NCJT). Fig.13 Examples of this CJT and NCJT CSI hypothetical configuration are depicted.
[0133] As another example of a CJT and NCJT CSI hypothesis configuration for the same CSI-RS resource set, the CSI-RS resource set may be associated with a CJT CMR group set. In some aspects, each CJT CMR group from the CJT CMR group set may be associated with one or more TRPs associated with the network entity 110 and / or the UE 120. Each CJT CMR group may be associated with a CMR set associated with a different number of ports (e.g., antenna ports or CSI-RS ports). A first CSI hypothesis from a CSI hypothesis set associated with a CJT CSI estimate may include CMRs from a CJT CMR group of a CJT CMR group set. For example, a CMR may be associated with multiple port groups, each of which is associated with a different TRP (e.g., in a similar manner as described elsewhere herein). Thus, for a CJT CSI estimate, a CSI hypothesis may include a given CMR and IMR. A second CSI hypothesis associated with an NCJT CSI estimate may include a first CMR from a first CJT CMR group and a second CMR from a second CJT CMR group. In other words, the NCJT CSI assumption may be configured using CMRs included in different CJT CMR groups. Fig.14 An example of a CSI hypothesis configuration based on a CJT CMR group is depicted.
[0134] As indicated by reference numeral 810, UE 120 may configure itself based at least in part on the configuration information. In some aspects, UE 120 may be configured to perform one or more operations described herein based at least in part on the configuration information. For example, UE 120 may be configured to measure CMR and / or IMR as indicated by the configuration information.
[0135] As indicated by reference numeral 815, UE 120 may perform one or more measurements based on a set of CSI hypotheses. For example, UE 120 may perform one or more measurements associated with a given CSI hypothesis using one or more CMRs and / or IMRs configured for the given CSI hypothesis (e.g., configured by configuration information). In some aspects, UE 120 may select one or more CSI hypotheses from the configured set of CSI hypotheses to be associated with the measurements. For example, in some cases, UE 120 may perform measurements associated with less than all configured CSI hypotheses. UE 120 may obtain measurement values based at least in part on performing the measurements. UE 120 may compare the measurement values to identify one or more CSI hypotheses associated with the best or highest measurement values.
[0136] As indicated by reference numeral 820, UE 120 may send a CSI report intended for network entity 110. UE 120 may send the CSI report to network entity 110 or to another network entity or TRP (e.g., to be forwarded to network entity 110). Network entity 110 may receive a CSI report associated with UE 120 (e.g., from UE 120 or from another network entity or TRP). The CSI report may indicate one or more CRIs associated with one or more CSI assumptions in a set of CSI assumptions. In some aspects, each of the one or more CRIs is associated with a corresponding CSI assumption from the one or more CSI assumptions. In other words, a single CRI may be associated with a single CSI assumption (e.g., as indicated by configuration information). For example, UE 120 may report one or more CRIs associated with an mTRP CJT CSI estimate. Additionally or alternatively, UE 120 may report one or more CRIs associated with an mTRP NJT CSI estimate. Additionally or alternatively, UE 120 may report one or more CRIs associated with the sTRP CSI estimates.
[0137] The network entity 110 may determine a TRP configuration for the UE 120 based at least in part on the CSI report. For example, the network entity 110 may determine a combination of TRPs to be associated with the UE 120 (e.g., based at least in part on the TRPs associated with the CRI reported by the UE 120). In addition, the network entity 110 may determine whether CJT is available for the UE 120 (e.g., based at least in part on whether the CRI reported by the UE 120 is associated with the mTRP CJT). As another example, the network entity 110 may determine one or more transmission parameters to be associated with the mTRP or sTRP operation associated with the UE 120, such as transmit power, rank, number of layers, MCS, and / or other transmission parameters. The network entity 110 may send a TRP configuration intended for the UE 120 (e.g., to the UE 120 or to another network entity or TRP to be forwarded to the UE 120). The UE 120 may receive the TRP configuration (e.g., from the network entity 110 or from another network entity or TRP).
[0138] Thus, the UE 120 may be enabled to identify the CMR and / or IMR to be measured for various TRP combinations. This may enable the UE 120 to measure the CSI associated with various CJT channels from multiple TRPs. In addition, the UE 120 may be enabled to report one or more CRIs, each CRI being associated with one of the CSI assumptions. This may enable the network (e.g., a network entity) to identify the best TRP combination to serve the UE 120 for the CJT scenario. Thus, the network entity may be enabled to make better determinations regarding various transmit parameters (e.g., transmit power, rank, number of layers, etc.) of mTRP CJT communications associated with the UE 120. This may improve the performance of mTRP CJT communications and improve network resource utilization (e.g., by enabling multiple TRPs to effectively communicate with the UE 120 using mTRP CJT communications).
[0139] As indicated above, Figure 8 are provided as examples. Other examples can be found in Figure 8 The content described is different.
[0140] Fig. 9 is a diagram of an example 900 associated with a CSI hypothesis configuration based on CSI-RS resources for a CJT scenario according to the present disclosure. Fig. 9 As shown, the network entity 110 may configure a CSI-RS resource set 905 for the UE 120. The CSI-RS resource set 905 may include a CMR group set.
[0141] The number of CMR groups associated with CSI-RS resource set 905 may be associated with, or based at least in part on, the number of TRPs associated with UE 120. For example, Fig. 9As shown, UE 120 may be configured to communicate with four TRPs (e.g., TRP A, TRP B, TRP C, and TRP D) associated with network entity 110. The CSI-RS resource set may be associated with a first CMR group 910 (e.g., associated with TRP A), a second CMR group 915 (e.g., associated with TRP B), a third CMR group 920 (e.g., associated with TRP C), and a fourth CMR group 925 (e.g., associated with TRP D). Each CMR group may include one or more CMRs associated with mTRP CSI estimates and one or more CMRs associated with sTRP CSI estimates. The CMRs included in a given CMR group may all be associated with the same TRP. For example, a CMR included in the first CMR group 910 may be associated with TRP A, and a CMR included in the third CMR group 920 may be associated with TRP C. In some aspects, each CMR group may include the same number of mTRP CMRs. The CMR groups may include the same number of sTRP CMRs. Alternatively, the CMR set may include a different number of sTRP CMRs.
[0142] like Fig. 9 As shown, the mTRP CMR set 930 may be configured for mTRP CJT CSI estimation. For example, the mTRP CMR set 930 may include CMRs from each CMR group associated with the CSI-RS resource set 905. Fig. 9 As shown, the mTRP CMR set 930 may include a first CMR from the first CMR group 910, a first CMR from the second CMR group 915, a first CMR from the third CMR group 920, and a first CMR from the fourth CMR group 925. In other words, the first CJT CSI hypothesis may be configured as a CMR associated with a first index value (e.g., a first or lowest index value) from each CMR group. As another example, the mTRP CMR set 935 may be configured for mTRP CJT CSI estimation. For example, the mTRP CMR set 935 may include CMRs from each CMR group associated with the CSI-RS resource set 905. For example, as Fig. 9As shown, the mTRP CMR set 930 may include a second CMR from the first CMR group 910, a second CMR from the second CMR group 915, a second CMR from the third CMR group 920, and a second CMR from the fourth CMR group 925. In other words, the second CJT CSI hypothesis may be configured as a CMR associated with a second index value (e.g., a second index value, a second lowest index value, or a highest index value) from each CMR group. The sTRP CSI hypothesis may be configured using sTRP CMRs from a given CMR group. Each CSI hypothesis may be associated with a configured IMR.
[0143] As indicated above, Fig. 9 are provided as examples. Other examples can be found in Fig. 9 The content described is different.
[0144] Fig.10 1 is a diagram of an example 1000 associated with a CSI hypothesis configuration based on CSI-RS resources for a CJT scenario according to the present disclosure. Fig.10 As shown, the network entity 110 may configure a CSI-RS resource set 1005 for the UE 120. The CSI-RS resource set 1005 may include a CMR set.
[0145] The number of CMRs associated with the CSI-RS resource set 1005 may be associated with, or based at least in part on, the number of TRPs associated with the UE 120. For example, Fig.10 As shown, UE 120 may be configured to communicate with four TRPs (e.g., TRP A, TRP B, TRP C, and TRP D) associated with network entity 110. The CSI-RS resource set may be associated with a first CMR 1010 (e.g., associated with TRP A), a second CMR 1015 (e.g., associated with TRP B), a third CMR 1020 (e.g., associated with TRP C), and a fourth CMR 1025 (e.g., associated with TRP D). Network entity 110 may configure one or more CSI assumptions by indicating which CMRs are associated with each CSI assumption (e.g., via one or more bitmaps or another indication). For example, each bit in the bitmap may correspond to a CMR included in CSI-RS resource set 1005. For a given bit, if the CMR is associated with a CSI assumption, the network entity 110 may include a value of "1" in the bitmap, and if the CMR is not associated with a CSI assumption, the network entity 110 may include a value of "0" in the bitmap.
[0146] For example, the bitmap {1,1,1,1} may indicate that the first CMR 1010, the second CMR 1015, the third CMR 1020, and the fourth CMR 1025 are configured for the CSI hypothesis associated with the bitmap. The bitmap {1,0,1,1} may indicate that the first CMR 1010, the third CMR 1020, and the fourth CMR 1025 (e.g., but not the second CMR 1015) are configured for the CSI hypothesis associated with the bitmap (e.g., for three-TRP CJT CSI estimation). The bitmap {1,0,0,1} may indicate that the first CMR 1010 and the fourth CMR 1025 (e.g., but not the second CMR 1015 or the third CMR 1020) are configured for the CSI hypothesis associated with the bitmap (e.g., for two-TRP CJT CSI estimation). The bitmap {1,0,0,0} may indicate that the first CMR 1010 (e.g., but not the second CMR 1015, the third CMR 1020, or the fourth CMR 1025) is configured for the CSI hypothesis associated with the bitmap (e.g., for a single TRP CSI estimation). This may provide the network entity 110 with additional flexibility to configure different CSI hypotheses while also saving the number of CMRs that need to be configured for different CSI hypotheses.
[0147] As indicated above, Fig.10 are provided as examples. Other examples can be found in Fig.10 The content described is different.
[0148] Fig.11 1 is a diagram of an example 1100 associated with a port group based CSI assumption configuration for a CJT scenario according to the present disclosure. Fig.11 As shown, the network entity 110 may configure a CSI-RS resource set 1105 for the UE 120. The CSI-RS resource set 1105 may include a CMR set. Fig.11 As shown, CMR sets may be associated with different numbers of ports (eg, antenna ports or CSI-RS ports).
[0149] For example, the CSI-RS resource set 1105 may include a first one or more CMRs associated with a first number of ports. The CSI-RS resource set 1105 may include a second one or more CMRs associated with a second number of ports. The CSI-RS resource set 1105 may include a third one or more CMRs associated with a third number of ports. The CSI-RS resource set 1105 may include a fourth one or more CMRs associated with a fourth number of ports. For example, the first number of ports may be associated with a first number of TRPs (e.g., four TRPs). The second number of ports may be associated with a second number of TRPs (e.g., three TRPs). The third number of ports may be associated with a third number of TRPs (e.g., two TRPs). The fourth number of ports may be associated with a fourth number of TRPs (e.g., a single TRP). For example, each TRP may be associated with S ports. The UE 120 may be associated with P TRPs. Thus, the first quantity may be based at least in part on S×P, the second quantity may be based at least in part on S×(P-1), the third quantity may be based at least in part on S×(P-2), and so on. For example, assuming S is 8 and P is 4, the first number of ports may be 32, the second number of ports may be 24, the third number of ports may be 16, and the fourth number of ports may be 8.
[0150] CMRs associated with the same number of ports may be associated with different TRP combinations. For example, a first CMR associated with a second number of ports may be associated with a first TRP combination (e.g., TRP A, TRP B, and TRP C), and a second CMR associated with a second number of ports may be associated with a second TRP combination (e.g., TRP A, TRP C, and TRP D). Thus, a CSI hypothesis may be defined as a CMR and an IMR, where the number of ports associated with a CMR indicates the number of TRPs associated with the CSI hypothesis.
[0151] As indicated above, Fig.11 are provided as examples. Other examples can be found in Fig.11 The content described is different.
[0152] Fig.12 1 is a diagram of an example 1200 associated with a port group based CSI assumption configuration for a CJT scenario according to the present disclosure. Fig.12 As shown, the network entity 110 may configure CSI-RS resources 1205. The CSI-RS resources 1205 may be CMRs for CJT CSI estimation. Fig.12 As shown, CSI-RS resource 1205 may be associated with one or more port groups (eg, antenna port groups or CSI-RS port groups). Each port group may correspond to a corresponding TRP.
[0153] For example, Fig.12 As shown, UE 120 may be configured or capable of communicating with four TRPs (e.g., TRP A, TRP B, TRP C, and TRP D) associated with network entity 110. CSI-RS resources 1205 may be associated with a first port group (e.g., associated with TRP A), a second port group (e.g., associated with TRP B), a third port group (e.g., associated with TRP C), and a fourth port group (e.g., associated with TRP D). Network entity 110 may configure one or more CSI assumptions by indicating which port groups are associated with each CSI assumption (e.g., via one or more bitmaps or another indication). For example, each bit in the bitmap may correspond to a port group associated with CSI-RS resource 1205. For a given bit, if the port group is associated with the CSI assumption, the network entity 110 may include a value of "1" in the bitmap, and if the port group is not associated with the CSI assumption, the network entity 110 may include a value of "0" in the bitmap.
[0154] For example, a bitmap {1,1,1,1} may indicate that the first port group, the second port group, the third port group, and the fourth port group are configured for the CSI hypothesis associated with the bitmap. A bitmap {1,0,1,1} may indicate that the first port group, the third port group, and the fourth port group (e.g., but not the second port group) are configured for the CSI hypothesis associated with the bitmap (e.g., for three-TRP CJT CSI estimation). A bitmap {1,0,0,1} may indicate that the first port group and the fourth port group (e.g., but not the second port group or the third port group) are configured for the CSI hypothesis associated with the bitmap (e.g., for two-TRP CJT CSI estimation). A bitmap {1,0,0,0} may indicate that the first port group (e.g., but not the second port group, the third port group, or the fourth port group) is configured for the CSI hypothesis associated with the bitmap (e.g., for single-TRP CSI estimation). This may provide the network entity 110 with additional flexibility to configure different CSI assumptions while also saving the number of CMRs that need to be configured for different CSI assumptions.
[0155] As indicated above, Fig.12 are provided as examples. Other examples can be found in Fig.12 The content described is different.
[0156] Fig.13 1 is a diagram of an example 1300 associated with a CSI hypothesis configuration based on CSI-RS resources for both CJT and NCJT scenarios according to the present disclosure. Fig.13As shown, the network entity 110 may configure a CSI-RS resource set 1305 for the UE 120. The CSI-RS resource set 1305 may include CMRs for CJT CSI estimation and CMRs for NCJT CSI estimation.
[0157] The CSI-RS resource set 1305 may include a set of CMR groups. The number of CMR groups associated with the CSI-RS resource set 1305 may be associated with, or based at least in part on, the number of TRPs associated with the UE 120. For example, Fig.13 As shown, UE 120 may be configured or capable of communicating with four TRPs (e.g., TRP A, TRP B, TRP C, and TRP D) associated with network entity 110. The CSI-RS resource set may be associated with a first CMR group 1310 (e.g., associated with TRP A), a second CMR group 1315 (e.g., associated with TRP B), a third CMR group 1320 (e.g., associated with TRP C), and a fourth CMR group 1325 (e.g., associated with TRP D). In other words, each CMR group may be associated with a different TRP. Each CMR group may include one or more CMRs associated with mTRP CSI estimates and one or more CMRs associated with sTRP CSI estimates. The CMRs included in a given CMR group may all be associated with the same TRP. For example, the CMRs included in the first CMR group 1310 may be associated with TRP A, and the CMRs included in the third CMR group 1320 may be associated with TRP C. In some aspects, each CMR group may include the same number of mTRP CMRs. The CMR groups may include the same number of sTRPCMRs. Alternatively, the CMR groups may include different numbers of sTRP CMRs.
[0158] In addition, the CSI-RS resource set 1305 may be associated with one or more CJT groups. A CJT group may include a CMR group associated with a TRP that can perform CJT with each other (eg, can achieve phase coherence). Fig.13As shown in , a CSI-RS resource set 1305 may be associated with a first CJT group 1330. The first CJT group 1330 may include a first CMR group 1310 and a second CMR group 1315. For example, TRP A and TRP B may be able to achieve phase coherence. Therefore, TRP A and TRP B may be used together for CJT associated with UE 120. The CSI-RS resource set 1305 may be associated with a second CJT group 1335. The second CJT group 1335 may include a third CMR group 1320 and a fourth CMR group 1325. For example, TRP C and TRP D may be able to achieve phase coherence. Therefore, TRP C and TRP D may be used together for CJT associated with UE 120. In such examples, TRPs associated with different CJT groups may not be able to achieve phase coherence. For example, in Fig.13 In the depicted configuration, TRP B and TRP C may not be able to achieve phase coherence and may not be used for CJT associated with UE 120.
[0159] As indicated by reference numeral 1340, the CSI hypothesis for CJT CSI estimation may include one or more CMRs from CMR groups included in the same CJT group. For example, the CSI hypothesis for CJT CSI estimation may include a first CMR from the first CMR group 1310 and a first CMR from the second CMR group 1315. As another example, the CSI hypothesis for CJT CSI estimation may include a first CMR from the third CMR group 1320 and a first CMR from the fourth CMR group 1325. As indicated by reference numeral 1345, the CSI hypothesis for NCJT CSI estimation may include one or more CMRs from CMR groups included in different CJT groups. For example, the CSI hypothesis for NCJT CSI estimation may include a CMR from the second CMR group 1315 and a CMR from the fourth CMR group 1325. As another example, the CSI hypothesis for NCJT CSI estimation may include CMRs from the first CMR group 1310, CMRs from the second CMR group 1315, and CMRs from the fourth CMR group 1325. Therefore, the network entity 110 may be enabled to configure CSI hypotheses for CJT CSI estimation and for NCJT CSI estimation using the same CSI-RS resource set.
[0160] As indicated above, Fig.13 are provided as examples. Other examples can be found in Fig.13 The content described is different.
[0161] Fig.14 1 is a diagram of an example 1400 associated with a port group based CSI assumption configuration for both a CJT scenario and a NCJT scenario according to the present disclosure. Fig.14 As shown, the network entity 110 may configure a CSI-RS resource set 1405 for the UE 120. The CSI-RS resource set 1405 may include CMRs for CJT CSI estimation and CMRs for NCJT CSI estimation.
[0162] The CSI-RS resource set 1405 may be associated with one or more CJT CMR groups. A CJT CMR group may be associated with one or more TRPs. For example, a CJT CMR group may be associated with multiple TRPs that enable phase coherence for CJT associated with the UE 120. Fig.14 As shown, the CSI-RS resource set 1405 may be associated with a first CJT CMR group 1410 (eg, associated with TRP A and TRP B) and a second CJT CMR group 1415 (eg, associated with TRP C and TRP D).
[0163] Each CJT CMR group may include one or more CMRs. The CMRs within a CJT CMR group may be associated with different numbers of ports (e.g., antenna ports or CSI-RS ports). Fig.14 In the example shown, each CJT CMR group is associated with two TRPs. Thus, the CMRs include one or more CMRs having a number of ports associated with two TRPs and one or more CMRs having a number of ports associated with a single TRP. In other examples, the CJT CMR group may be associated with more than two TRPs (such as three TRPs). In such examples, the CMRs may include one or more CMRs having a number of ports associated with three TRPs, one or more CMRs having a number of ports associated with two TRPs, and one or more CMRs having a number of ports associated with a single TRP. For example, the number of ports associated with a certain number of TRPs may be based at least in part on the port group size. For example, a port group may be associated with eight ports. Thus, the number of ports associated with a single TRP may be eight (e.g., a single port group). As another example, the number of ports associated with two TRPs may be 16 (e.g., two port groups). Each CMR may be associated with one or more TRPs. For example, the first CJT CMR group 1410 may include a first mTRP CMR associated with TRP A and TRPB, a second mTRP CMR associated with TRP A and TRP B, a first sTRP CMR associated with TRP A, and a second sTRP CMR associated with TRP B.
[0164] The CSI assumptions used for CJT CSI estimation may be configured for given CMRs from a CJT CMR group and an IMR. For example, the CSI assumptions used for CJT CSI estimation associated with TRP A and TRP B may be associated with CMRs from a first CJT CMR group 1410 (e.g., where TRP A is associated with a first set of ports of CMRs and TRP B is associated with a second set of ports of CMRs). The CSI assumptions used for CJT CSI estimation associated with TRP C and TRP D may be associated with CMRs from a second CJT CMR group 1415 (e.g., where TRP C is associated with a first set of ports of CMRs and TRP D is associated with a second set of ports of CMRs).
[0165] The CSI hypothesis for NCJT CSI estimation may include one or more CMRs from different CJT CMR groups. For example, as shown in reference numeral 1420, the CSI hypothesis for NCJT CSI estimation associated with four TRPs may include a first mTRP CMR from the first CJT CMR group 1410 (e.g., including CMRs for the number of ports associated with two TRPs) and a second mTRP CMR from the second CJT CMR group 1415 (e.g., including CMRs for the number of ports associated with two TRPs). For another example, as shown in reference numeral 1425, the CSI hypothesis for NCJT CSI estimation associated with three TRPs may include sTRP CMRs from the first CJT CMR group 1410 (e.g., including CMRs for the number of ports associated with a single TRP) and mTRP CMRs from the second CJT CMR group 1415 (e.g., including CMRs for the number of ports associated with two TRPs). For another example, as shown in reference numeral 1430, the CSI assumptions for NCJT CSI estimation associated with two TRPs may include a first sTRP CMR from a first CJT CMR group 1410 (e.g., CMRs including the number of ports associated with a single TRP) and a second sTRP CMR from a second CJT CMR group 1415 (e.g., CMRs including the number of ports associated with a single TRP).
[0166] Thus, the network entity 110 may be enabled to use the same CSI-RS resource set to configure CSI assumptions for CJT CSI estimation and for NCJT CSI estimation. For example, the network entity 110 may use the same CSI-RS resource set to configure CSI assumptions associated with a CJT scenario, a NCJT scenario, and different numbers of TRPs.
[0167] As indicated above, Fig.14 are provided as examples. Other examples can be found in Fig.14 The content described is different.
[0168] Fig.15 is a diagram illustrating an example process 1500 performed, for example, by a UE in accordance with the present disclosure. Example process 1500 is an example in which a UE (eg, UE 120) performs operations associated with CSI hypothesis configuration for a CJT scenario.
[0169] like Fig.15 As shown, in some aspects, process 1500 may include receiving configuration information from a network entity indicating a set of CSI hypotheses associated with CJT CSI estimation (block 1510). For example, a UE (e.g., using Fig.17 The depicted communication manager 140 and / or receiving component 1702) may receive configuration information indicating a set of CSI hypotheses associated with CJT CSI estimation from a network entity, as described above, for example with reference to Figure 8 , Fig. 9 , Fig.10 , Fig.11 , Fig.12 , Fig.13 and / or Fig.14 as described.
[0170] like Fig.15 As further shown in FIG. 1 , in some aspects, process 1500 may include sending a CSI report indicating one or more CRIs associated with one or more CSI hypotheses of a CSI hypothesis set to a network entity, wherein each of the one or more CRIs is associated with a corresponding CSI hypothesis from the one or more CSI hypotheses (block 1520). For example, a UE (e.g., using Fig.17 The communication manager 140 and / or the sending component 1704 depicted in FIG. 1 may send a CSI report indicating one or more CRIs associated with one or more CSI hypotheses in the set of CSI hypotheses to a network entity, wherein each of the one or more CRIs is associated with a corresponding CSI hypothesis from the one or more CSI hypotheses, as described above, for example with reference to Figure 8 , Fig. 9 , Fig.10 , Fig.11 , Fig.12 , Fig.13 and / or Fig.14 as described.
[0171] Process 1500 may include additional aspects, such as any single aspect or any combination of aspects described below and / or in conjunction with one or more other processes described elsewhere herein.
[0172] In a first aspect, a CSI hypothesis from a set of CSI hypotheses includes a configuration of at least one of one or more CMRs or one or more IMRs associated with the one or more CMRs.
[0173] In a second aspect, alone or in combination with the first aspect, the configuration information comprises a CSI-RS resource set configuration, wherein the CSI-RS resource set configuration comprises a configuration for a CSI-RS resource set, and wherein a CSI hypothesis set is associated with different CSI-RS resources from the CSI-RS resource set.
[0174] In a third aspect, alone or in combination with one or more of the first and second aspects, the configuration information includes configuration for CSI-RS resources, and the CSI hypothesis sets are associated with different antenna port groups.
[0175] In a fourth aspect, alone or in combination with one or more of the first to third aspects, the configuration information includes a configuration of a CSI-RS resource set for a CJT, wherein the CSI-RS resource set is associated with one or more CMR groups, the one or more CMR groups are associated with corresponding TRPs associated with a network entity, and wherein a CSI hypothesis from a CSI hypothesis set includes a configuration of a CMR from each CMR group in the one or more CMR groups and a configuration of an IMR associated with the CSI hypothesis.
[0176] In a fifth aspect, either alone or in combination with one or more of the first to fourth aspects, each of the one or more CMR groups includes a first number of CMRs associated with a multi-TRP CSI estimate, and each of the one or more CMR groups includes a first number or a second number of CMRs associated with a single TRP CSI estimate.
[0177] In a sixth aspect, alone or in combination with one or more of the first to fifth aspects, CMRs from each CMR group associated with a CSI hypothesis are CMRs associated with a multi-TRP CSI estimate.
[0178] In a seventh aspect, alone or in combination with one or more of the first to sixth aspects, the configuration information includes a configuration of a CSI-RS resource set for CJT, wherein the CSI-RS resource set is associated with a CMR set, the CMR set is associated with a corresponding TRP associated with a network entity, and wherein a CSI hypothesis from the CSI hypothesis set includes a configuration of one or more CMRs from the CMR set and a configuration of an IMR associated with the CSI hypothesis.
[0179] In an eighth aspect, alone or in combination with one or more of the first to seventh aspects, a single CMR from the set of CMRs is associated with a single TRP.
[0180] In a ninth aspect, alone or in combination with one or more of the first to eighth aspects, the configuration information includes an indication of one or more CMRs from the CMR set, the one or more CMRs included in a corresponding CSI hypothesis from the CSI hypothesis set.
[0181] In a tenth aspect, alone or in combination with one or more of the first to ninth aspects, the indication comprises a bitmap.
[0182] In the eleventh aspect, alone or in combination with one or more of the first to tenth aspects, the configuration information includes a configuration of a CSI-RS resource set for CJT, wherein the CSI-RS resource set is associated with a CMR set, the CMR set is associated with a different number of antenna ports, and wherein the CSI hypothesis from the CSI hypothesis set includes a configuration of a CMR from the CMR set and a configuration of an IMR associated with the CSI hypothesis.
[0183] In the twelfth aspect, alone or in combination with one or more of the first to eleventh aspects, a first CSI hypothesis from the CSI hypothesis set includes a first CMR from a CMR set associated with a first number of antenna ports, and a first IMR, and a second CSI hypothesis from the CSI hypothesis set includes a second CMR from the CMR set associated with a second number of antenna ports, and a second IMR.
[0184] In the thirteenth aspect, alone or in combination with one or more of the first to twelfth aspects, a first CSI hypothesis from the CSI hypothesis set includes a first CMR from the CMR set associated with a first number of antenna ports, and a first IMR, and a second CSI hypothesis from the CSI hypothesis set includes the first CMR and the second IMR.
[0185] In a fourteenth aspect, alone or in combination with one or more of aspects one to thirteen, the configuration information includes a configuration of CSI-RS resources for a CMR for CJT, wherein the CSI-RS resources are associated with an antenna port group set, wherein an antenna port group from the antenna port group set is associated with a TRP from a plurality of TRPs associated with a network entity, and wherein a CSI hypothesis from a CSI hypothesis set includes one or more antenna port groups from the antenna port group set and a configuration of an IMR associated with the CSI hypothesis.
[0186] In a fifteenth aspect, alone or in combination with one or more of the first to fourteenth aspects, the configuration information includes an indication of one or more antenna port groups from the set of antenna port groups associated with the CSI hypothesis.
[0187] In a sixteenth aspect, alone or in combination with one or more of the first to fifteenth aspects, the indication comprises a bitmap.
[0188] In a seventeenth aspect, alone or in combination with one or more of the first to sixteenth aspects, the configuration information indicates that the CSI-RS resource is associated with a plurality of IMRs including the IMR.
[0189] In an eighteenth aspect, alone or in combination with one or more of the first to seventeenth aspects, the configuration information includes a configuration for a CSI-RS resource set, wherein the CSI-RS resource set is associated with a CMR group set, each CMR group from the CMR group set is associated with a corresponding TRP associated with a network entity, wherein the CSI-RS resource set is associated with one or more CJT groups, each CJT group from the one or more CJT groups includes one or more CMR groups from the CMR group set, wherein a first CSI hypothesis from a CSI hypothesis set associated with a CJT CSI estimation includes one or more CMRs from different CMR groups included in the same CJT group, and wherein a second CSI hypothesis associated with a non-CJT CSI estimation includes one or more CMRs from different CMR groups included in the same CJT group.
[0190] In a nineteenth aspect, alone or in combination with one or more of the first to eighteenth aspects, the configuration information includes a configuration for a CSI-RS resource set, wherein the CSI-RS resource set is associated with a CJT CMR group set, each CJT CMR group from the CJT CMR group set is associated with one or more TRPs associated with a network entity, wherein each CJT CMR group is associated with a CMR set, the CMR sets are associated with a different number of antenna ports, wherein a first CSI hypothesis from a CSI hypothesis set associated with a CJT CSI estimation includes CMRs from a CJT CMR group from the CJT CMR group set, and wherein a second CSI hypothesis associated with a non-CJT CSI estimation includes a first CMR from the first CJT CMR group and a second CMR from a second CJT CMR group.
[0191] In a twentieth aspect, either alone or in combination with one or more of aspects 1 to 19, process 1500 includes receiving a TRP configuration from a network entity, wherein a TRP indicated by the TRP configuration is based at least in part on one or more CRIs indicated in a CSI report.
[0192] although Fig.15 An example block diagram of process 1500 is shown, but in some aspects, process 1500 may include Fig.15 The blocks depicted in the process 1500 may include additional blocks, fewer blocks, different blocks, or blocks arranged in a different manner than those depicted in the process 1500. Additionally or alternatively, two or more blocks in the blocks of the process 1500 may be performed in parallel.
[0193] Fig.16 is a diagram illustrating an example process 1600 performed, for example, by a network entity in accordance with the present disclosure. The example process 1600 is an example in which a network entity (eg, network entity 110) performs operations associated with CSI hypothesis configuration for a CJT scenario.
[0194] like Fig.16 As shown in FIG. 1 , in some aspects, process 1600 may include sending configuration information intended for a UE indicating a set of CSI hypotheses associated with CJT CSI estimation (block 1610). For example, a network entity (e.g., using Fig.18 The depicted communication manager 150 and / or transmitting component 1804) may transmit configuration information intended for the UE indicating a set of CSI hypotheses associated with CJT CSI estimation, as described above, for example with reference to Figure 8 , Fig. 9 , Fig.10 , Fig.11 , Fig.12 , Fig.13 and / or Fig.14 as described.
[0195] like Fig.16 As further shown in FIG. 1 , in some aspects, process 1600 may include receiving a CSI report associated with a UE indicating one or more CRIs associated with one or more CSI hypotheses from a set of CSI hypotheses, wherein each of the one or more CRIs is associated with a corresponding CSI hypothesis from the one or more CSI hypotheses (block 1620). For example, a network entity (e.g., using Fig.18 The communication manager 150 and / or receiving component 1802 depicted in FIG. 1 may receive a CSI report associated with a UE indicating one or more CRIs associated with one or more CSI hypotheses from a set of CSI hypotheses, wherein each of the one or more CRIs is associated with a respective CSI hypothesis from the one or more CSI hypotheses, as described above, for example with reference to Figure 8 , Fig. 9 , Fig.10 , Fig.11 , Fig.12 , Fig.13 and / or Fig.14 as described.
[0196] Process 1600 may include additional aspects, such as any single aspect or any combination of aspects described below and / or in conjunction with one or more other processes described elsewhere herein.
[0197] In a first aspect, process 1600 includes sending a TRP configuration intended for a UE, wherein a TRP indicated by the TRP configuration is based at least in part on one or more CRIs indicated in a CSI report.
[0198] In a second aspect, alone or in combination with the first aspect, a CSI hypothesis from the set of CSI hypotheses includes a configuration of at least one of one or more CMRs or one or more IMRs associated with the one or more CMRs.
[0199] In a third aspect, alone or in combination with one or more of the first and second aspects, the configuration information includes a CSI-RS resource set configuration, wherein the CSI-RS resource set configuration includes a configuration for a CSI-RS resource set, and wherein the CSI hypothesis set is associated with different CSI-RS resources from the CSI-RS resource set.
[0200] In a fourth aspect, alone or in combination with one or more of the first to third aspects, the configuration information includes configuration for CSI-RS resources, and the CSI hypothesis sets are associated with different antenna port groups.
[0201] In a fifth aspect, alone or in combination with one or more of the first to fourth aspects, the configuration information includes a configuration of a CSI-RS resource set for a CJT, wherein the CSI-RS resource set is associated with one or more CMR groups, the one or more CMR groups are associated with corresponding TRPs associated with a network entity, and wherein a CSI hypothesis from a CSI hypothesis set includes a configuration of a CMR from each CMR group in the one or more CMR groups and a configuration of an IMR associated with the CSI hypothesis.
[0202] In a sixth aspect, either alone or in combination with one or more of aspects 1 to 5, each of the one or more CMR groups includes a first number of CMRs associated with a multi-TRP CSI estimate, and each of the one or more CMR groups includes a first number or a second number of CMRs associated with a single TRP CSI estimate.
[0203] In a seventh aspect, alone or in combination with one or more of the first to sixth aspects, CMRs from each CMR group associated with a CSI hypothesis are CMRs associated with a multi-TRP CSI estimate.
[0204] In an eighth aspect, alone or in combination with one or more of the first to seventh aspects, the configuration information includes a configuration of a CSI-RS resource set for CJT, wherein the CSI-RS resource set is associated with a CMR set, the CMR set is associated with a corresponding TRP associated with a network entity, and wherein a CSI hypothesis from the CSI hypothesis set includes a configuration of one or more CMRs from the CMR set and a configuration of an IMR associated with the CSI hypothesis.
[0205] In a ninth aspect, alone or in combination with one or more of the first to eighth aspects, a single CMR from the set of CMRs is associated with a single TRP.
[0206] In a tenth aspect, alone or in combination with one or more of the first to ninth aspects, the configuration information includes an indication of one or more CMRs from a CMR set, the one or more CMRs included in a corresponding CSI hypothesis from a CSI hypothesis set.
[0207] In an eleventh aspect, alone or in combination with one or more of the first to tenth aspects, the indication comprises a bitmap.
[0208] In the twelfth aspect, alone or in combination with one or more of the first to eleventh aspects, the configuration information includes a configuration of a CSI-RS resource set for CJT, wherein the CSI-RS resource set is associated with a CMR set, the CMR set is associated with a different number of antenna ports, and wherein the CSI hypothesis from the CSI hypothesis set includes a configuration of a CMR from the CMR set and a configuration of an IMR associated with the CSI hypothesis.
[0209] In the thirteenth aspect, alone or in combination with one or more of the first to twelfth aspects, a first CSI hypothesis from the CSI hypothesis set includes a first CMR from a CMR set associated with a first number of antenna ports, and a first IMR, and a second CSI hypothesis from the CSI hypothesis set includes a second CMR from the CMR set associated with a second number of antenna ports, and a second IMR.
[0210] In the fourteenth aspect, alone or in combination with one or more of the first to thirteenth aspects, a first CSI hypothesis from the CSI hypothesis set includes a first CMR from the CMR set associated with a first number of antenna ports, and a first IMR, and a second CSI hypothesis from the CSI hypothesis set includes the first CMR and the second IMR.
[0211] In the fifteenth aspect, alone or in combination with one or more of the first to fourteenth aspects, the configuration information includes a configuration of CSI-RS resources for a CMR for CJT, wherein the CSI-RS resources are associated with an antenna port group set, wherein an antenna port group from the antenna port group set is associated with a TRP from a plurality of TRPs associated with a network entity, and wherein a CSI hypothesis from the CSI hypothesis set includes one or more antenna port groups from the antenna port group set and a configuration of an IMR associated with the CSI hypothesis.
[0212] In a sixteenth aspect, alone or in combination with one or more of the first to fifteenth aspects, the configuration information includes an indication of one or more antenna port groups from the set of antenna port groups associated with the CSI hypothesis.
[0213] In a seventeenth aspect, alone or in combination with one or more of the first to sixteenth aspects, the indication comprises a bitmap.
[0214] In an eighteenth aspect, alone or in combination with one or more of the first to seventeenth aspects, the configuration information indicates that the CSI-RS resource is associated with a plurality of IMRs including an IMR.
[0215] In a nineteenth aspect, alone or in combination with one or more of the first to eighteenth aspects, the configuration information includes a configuration for a CSI-RS resource set, wherein the CSI-RS resource set is associated with a CMR group set, each CMR group from the CMR group set is associated with a corresponding TRP associated with a network entity, wherein the CSI-RS resource set is associated with one or more CJT groups, each CJT group from the one or more CJT groups includes one or more CMR groups from the CMR group set, wherein a first CSI hypothesis from a CSI hypothesis set associated with a CJT CSI estimation includes one or more CMRs from different CMR groups included in the same CJT group, and wherein a second CSI hypothesis associated with a non-CJT CSI estimation includes one or more CMRs from different CMR groups included in the same CJT group.
[0216] In the twentieth aspect, alone or in combination with one or more of the first to nineteenth aspects, the configuration information includes a configuration for a CSI-RS resource set, wherein the CSI-RS resource set is associated with a CJT CMR group set, each CJT CMR group from the CJT CMR group set is associated with one or more TRPs associated with a network entity, wherein each CJT CMR group is associated with a CMR set, the CMR sets are associated with a different number of antenna ports, wherein a first CSI hypothesis from a CSI hypothesis set associated with a CJT CSI estimation includes CMRs from a CJT CMR group from the CJT CMR group set, and wherein a second CSI hypothesis associated with a non-CJT CSI estimation includes a first CMR from the first CJT CMR group and a second CMR from a second CJT CMR group.
[0217] although Fig.16 An example block diagram of process 1600 is shown, but in some aspects, process 1600 may include Fig.16 The blocks depicted in the process 1600 may include additional blocks, fewer blocks, different blocks, or blocks arranged in a different manner than those depicted in the process 1600. Additionally or alternatively, two or more blocks in the blocks of the process 1600 may be performed in parallel.
[0218] Fig.17 1 is a diagram of an example apparatus 1700 for wireless communication according to the present disclosure. Apparatus 1700 may be a UE, or a UE may include apparatus 1700. In some aspects, apparatus 1700 includes a receiving component 1702 and a transmitting component 1704 that may communicate with each other (e.g., via one or more buses and / or one or more other components). As shown, apparatus 1700 may use receiving component 1702 and transmitting component 1704 to communicate with another apparatus 1706 (such as a UE, a base station, a network entity, or another wireless communication device). As further shown, apparatus 1700 may include a communication manager 140. Communication manager 140 may include one or more of a measurement component 1708 and / or a determination component 1710, etc.
[0219] In some aspects, the apparatus 1700 may be configured to perform Figures 8 to 14 Additionally or alternatively, the apparatus 1700 may be configured to perform one or more of the processes described herein (such as Fig.15 In some aspects, the apparatus 1700 and / or Fig.17 One or more of the components shown may include a combination of Figure 2 Additionally or alternatively, Fig.17 One or more of the components shown may be combined with Figure 2Additionally or alternatively, one or more of the components in the set of components may be implemented at least in part as software stored in a memory. For example, a component (or part of a component) may be implemented as instructions or code that are stored in a non-transitory computer-readable medium and can be executed by a controller or processor to perform the function or operation of the component.
[0220] The receiving component 1702 may receive communications from the device 1706, such as reference signals, control information, data communications, or combinations thereof. The receiving component 1702 may provide the received communications to one or more other components of the device 1700. In some aspects, the receiving component 1702 may perform signal processing (such as filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, demapping, equalization, interference cancellation, or decoding) on the received communications and may provide the processed signals to one or more other components of the device 1700. In some aspects, the receiving component 1702 may include combining Figure 2 One or more antennas, modems, demodulators, MIMO detectors, receive processors, controllers / processors, memories, or combinations thereof of the described UE.
[0221] The transmitting component 1704 may transmit communications, such as reference signals, control information, data communications, or combinations thereof, to the device 1706. In some aspects, one or more other components of the device 1700 may generate communications and may provide the generated communications to the transmitting component 1704 for transmission to the device 1706. In some aspects, the transmitting component 1704 may perform signal processing (such as filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding, etc.) on the generated communications and may transmit the processed signals to the device 1706. In some aspects, the transmitting component 1704 may include combining Figure 2 One or more antennas, modems, modulators, transmit MIMO processors, transmit processors, controllers / processors, memories, or combinations thereof of the described UE. In some aspects, the transmit component 1704 can be co-located with the receive component 1702 in a transceiver.
[0222] The receiving component 1702 may receive configuration information indicating a set of CSI hypotheses associated with the CJT CSI estimation from a network entity. The sending component 1704 may send a CSI report indicating one or more CRIs associated with one or more CSI hypotheses in the set of CSI hypotheses to the network entity, wherein each of the one or more CRIs is associated with a corresponding CSI hypothesis from the one or more CSI hypotheses.
[0223] Receiving component 1702 may receive a TRP configuration from a network entity, wherein a TRP indicated by the TRP configuration is based at least in part on one or more CRs indicated in the CSI report.
[0224] Measuring component 1708 can perform one or more measurements based on a set of CSI hypotheses.Determining component 1710 can determine one or more CRIs based at least in part on the one or more measurements.
[0225] Fig.17 The number and arrangement of components shown are provided as examples. In practice, there may be Fig.17 Additional components, fewer components, different components, or components arranged in a different manner than those shown. Fig.17 Two or more components shown may be implemented in a single component, or Fig.17 The single component shown may be implemented as multiple distributed components. Additionally or alternatively, Fig.17 The illustrated set (one or more) of components may be described as being executable by Fig.17 Another group of components shown performs one or more functions.
[0226] Fig.18 1 is a diagram of an example apparatus 1800 for wireless communication according to the present disclosure. Apparatus 1800 may be a network entity, or a network entity may include apparatus 1800. In some aspects, apparatus 1800 includes a receiving component 1802 and a sending component 1804 that may communicate with each other (e.g., via one or more buses and / or one or more other components). As shown, apparatus 1800 may use receiving component 1802 and sending component 1804 to communicate with another apparatus 1806 (such as a UE, a base station, or another wireless communication device). As further shown, apparatus 1800 may include a communication manager 150. Communication manager 150 may include a determining component 1808, among other things.
[0227] In some aspects, the apparatus 1800 may be configured to perform Figures 8 to 14 Additionally or alternatively, the apparatus 1800 may be configured to perform one or more of the processes described herein (such as Fig.16 In some aspects, Fig.18 The device 1800 and / or one or more components shown may include a combination of Figure 2 One or more components of the network entity. Additionally or alternatively, Fig.18 One or more of the components shown may be combined with Figure 2Additionally or alternatively, one or more of the components in the set of components may be implemented at least in part as software stored in a memory. For example, a component (or part of a component) may be implemented as instructions or code that are stored in a non-transitory computer-readable medium and can be executed by a controller or processor to perform the function or operation of the component.
[0228] The receiving component 1802 may receive communications, such as reference signals, control information, data communications, or combinations thereof, from the device 1806. The receiving component 1802 may provide the received communications to one or more other components of the device 1800. In some aspects, the receiving component 1802 may perform signal processing (such as filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, demapping, equalization, interference cancellation, or decoding) on the received communications and may provide the processed signals to one or more other components of the device 1800. In some aspects, the receiving component 1802 may include combining Figure 2 One or more antennas, modems, demodulators, MIMO detectors, receiving processors, controllers / processors, memories or combinations thereof of the network entity.
[0229] The transmitting component 1804 may transmit communications, such as reference signals, control information, data communications, or combinations thereof, to the device 1806. In some aspects, one or more other components of the device 1800 may generate communications and may provide the generated communications to the transmitting component 1804 for transmission to the device 1806. In some aspects, the transmitting component 1804 may perform signal processing (such as filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding, etc.) on the generated communications and may transmit the processed signals to the device 1806. In some aspects, the transmitting component 1804 may include combining Figure 2 One or more antennas, modems, modulators, transmit MIMO processors, transmit processors, controllers / processors, memories, or combinations thereof of the network entity. In some aspects, the transmit component 1804 can be co-located with the receive component 1802 in a transceiver.
[0230] The transmitting component 1804 can transmit configuration information intended for the UE indicating a set of CSI hypotheses associated with the CJT CSI estimation. The receiving component 1802 can receive a CSI report associated with the UE indicating one or more CRIs associated with one or more CSI hypotheses from the set of CSI hypotheses, wherein each of the one or more CRIs is associated with a respective CSI hypothesis from the one or more CSI hypotheses.
[0231] The sending component 1804 can send a TRP configuration intended for the UE, wherein the TRP indicated by the TRP configuration is based at least in part on one or more CRIs indicated in the CSI report. The determining component 1808 can determine the TRP configuration based at least in part on the CSI report.
[0232] Fig.18 The number and arrangement of components shown are provided as examples. In practice, there may be Fig.18 Additional components, fewer components, different components, or components arranged in a different manner than those shown. Fig.18 Two or more components shown may be implemented in a single component, or Fig.18 The single component shown may be implemented as multiple distributed components. Additionally or alternatively, Fig.18 The illustrated set (one or more) of components may be described as being executable by Fig.18 Another group of components shown performs one or more functions.
[0233] The following provides an overview of some aspects of the disclosure:
[0234] Aspect 1: A method of wireless communication performed by a user equipment (UE), comprising: receiving configuration information indicating a CSI hypothesis set associated with a coherent joint transmission (CJT) channel state information (CSI) estimation from a network entity; and sending a CSI report indicating one or more CSI reference signal (CSI-RS) resource indicators (CRIs) associated with one or more CSI hypotheses in the CSI hypothesis set to the network entity, wherein each of the one or more CSI hypotheses is associated with a corresponding CSI hypothesis from the one or more CSI hypotheses.
[0235] Aspect 2: The method according to Aspect 1, wherein the CSI hypothesis from the CSI hypothesis set includes a configuration of at least one of the following: one or more channel measurement resources (CMRs), or one or more interference measurement resources (IMRs) associated with the one or more CMRs.
[0236] Aspect 3: A method according to any one of Aspects 1-2, wherein the configuration information includes a CSI-RS resource set configuration, wherein the CSI-RS resource set configuration includes a configuration for a CSI-RS resource set, and wherein the CSI hypothesis set is associated with different CSI-RS resources from the CSI-RS resource set.
[0237] Aspect 4: The method according to any one of aspects 1-3, wherein the configuration information includes a configuration for CSI-RS resources, and wherein the CSI hypothesis sets are associated with different antenna port groups.
[0238] Aspect 5: A method according to any one of Aspects 1-4, wherein the configuration information includes a configuration of a CSI-RS resource set for CJT, wherein the CSI-RS resource set is associated with one or more channel measurement resource (CMR) groups, and the one or more channel measurement resource (CMR) groups are associated with corresponding transmit receive points (TRPs) associated with the network entity, and wherein the CSI hypothesis from the CSI hypothesis set includes a configuration of a CMR from each CMR group in the one or more CMR groups and a configuration of an interference measurement resource (IMR) associated with the CSI hypothesis.
[0239] Aspect 6: A method according to Aspect 5, wherein each of the one or more CMR groups includes a first number of CMRs associated with multiple TRP (multi-TRP) CSI estimates, and wherein each of the one or more CMR groups includes the first number or the second number of CMRs associated with a single TRP CSI estimate.
[0240] Aspect 7: The method according to aspect 6, wherein the CMR from each CMR group associated with the CSI hypothesis is a CMR associated with the multi-TRP CSI estimate.
[0241] Aspect 8: A method according to any one of Aspects 1-4, wherein the configuration information includes a configuration of a CSI-RS resource set for CJT, wherein the CSI-RS resource set is associated with a channel measurement resource (CMR) set, the channel measurement resource (CMR) set is associated with a corresponding transmit receive point (TRP) associated with the network entity, and wherein a CSI hypothesis from the CSI hypothesis set includes a configuration of one or more CMRs from the CMR set and a configuration of an interference measurement resource (IMR) associated with the CSI hypothesis.
[0242] Aspect 9: The method according to aspect 8, wherein a single CMR from the set of CMRs is associated with a single TRP.
[0243] Aspect 10: The method according to any one of aspects 8-9, wherein the configuration information includes an indication of one or more CMRs from the CMR set, the one or more CMRs included in a corresponding CSI hypothesis from the CSI hypothesis set.
[0244] Aspect 11: The method according to aspect 10, wherein the indication comprises a bitmap.
[0245] Aspect 12: A method according to any one of Aspects 1-4, wherein the configuration information includes a configuration of a CSI-RS resource set for CJT, wherein the CSI-RS resource set is associated with a channel measurement resource (CMR) set, the channel measurement resource (CMR) set is associated with a different number of antenna ports, and wherein a CSI hypothesis from the CSI hypothesis set includes a configuration of a CMR from the CMR set and a configuration of an interference measurement resource (IMR) associated with the CSI hypothesis.
[0246] Aspect 13: A method according to Aspect 12, wherein a first CSI hypothesis from the CSI hypothesis set includes a first CMR from the CMR set associated with a first number of antenna ports, and a first IMR, and wherein a second CSI hypothesis from the CSI hypothesis set includes a second CMR from the CMR set associated with a second number of antenna ports, and a second IMR.
[0247] Aspect 14: A method according to any one of Aspects 12-13, wherein a first CSI hypothesis from the CSI hypothesis set includes a first CMR from the CMR set associated with a first number of antenna ports, and a first IMR, and wherein a second CSI hypothesis from the CSI hypothesis set includes the first CMR and a second IMR.
[0248] Aspect 15: A method according to any one of Aspects 1-4, wherein the configuration information includes a configuration of a CSI-RS resource for serving as a channel measurement resource (CMR) for CJT, wherein the CSI-RS resource is associated with an antenna port group set, wherein an antenna port group from the antenna port group set is associated with a plurality of transmit receive points (TRPs) from TRPs associated with the network entity, and wherein a CSI hypothesis from the CSI hypothesis set includes one or more antenna port groups from the antenna port group set and a configuration of an interference measurement resource (IMR) associated with the CSI hypothesis.
[0249] Aspect 16: The method according to aspect 15, wherein the configuration information includes an indication of the one or more antenna port groups from the set of antenna port groups associated with the CSI hypothesis.
[0250] Aspect 17: The method according to aspect 16, wherein the indication comprises a bitmap.
[0251] Aspect 18: The method according to any one of aspects 15-17, wherein the configuration information indicates that the CSI-RS resource is associated with a plurality of IMRs including the IMR.
[0252] Aspect 19: A method according to any one of Aspects 1-18, wherein the configuration information includes a configuration for a CSI-RS resource set, wherein the CSI-RS resource set is associated with a channel measurement resource (CMR) group set, each CMR group from the CMR group set is associated with a corresponding transmit receive point (TRP) associated with the network entity, wherein the CSI-RS resource set is associated with one or more CJT groups, each CJT group from the one or more CJT groups includes one or more CMR groups from the CMR group set, wherein a first CSI hypothesis from the CSI hypothesis set associated with a CJT CSI estimation includes one or more CMRs from different CMR groups included in the same CJT group, and wherein a second CSI hypothesis associated with a non-CJT CSI estimation includes one or more CMRs from different CMR groups included in the same CJT group.
[0253] Aspect 20: A method according to any one of Aspects 1-18, wherein the configuration information includes a configuration for a CSI-RS resource set, wherein the CSI-RS resource set is associated with a CJT channel measurement resource (CMR) group set, each CJT CMR group from the CJT CMR group set is associated with one or more transmit receive points (TRPs) associated with the network entity, wherein each CJT CMR group is associated with a CMR set, the CMR sets are associated with different numbers of antenna ports, wherein a first CSI hypothesis from the CSI hypothesis set associated with CJT CSI estimation includes CMRs from a CJT CMR group from the CJT CMR group set, and wherein a second CSI hypothesis associated with a non-CJT CSI estimation includes a first CMR from a first CJT CMR group and a second CMR from a second CJT CMR group.
[0254] Aspect 21: The method according to any one of Aspects 1-20 further includes: receiving a transmit receive point (TRP) configuration from the network entity, wherein the TRP indicated by the TRP configuration is at least partially based on the one or more CRIs indicated in the CSI report.
[0255] Aspect 22: A method of wireless communication performed by a network entity, comprising: sending configuration information intended for a user equipment (UE) indicating a set of CSI hypotheses associated with a coherent joint transmission (CJT) channel state information (CSI) estimation; and receiving a CSI report associated with the UE indicating one or more CSI reference signal (CSI-RS) resource indicators (CRIs) associated with one or more CSI hypotheses from the CSI hypothesis set, wherein each of the one or more CRIs is associated with a corresponding CSI hypothesis from the one or more CSI hypotheses.
[0256] Aspect 23: The method according to Aspect 22 also includes: sending a transmit receive point (TRP) configuration intended for the UE, wherein the TRP indicated by the TRP configuration is at least partially based on the one or more CRIs indicated in the CSI report.
[0257] Aspect 24: A method according to any one of Aspects 22-23, wherein the CSI hypothesis from the CSI hypothesis set includes a configuration of at least one of the following: one or more channel measurement resources (CMRs), or one or more interference measurement resources (IMRs) associated with the one or more CMRs.
[0258] Aspect 25: A method according to any one of Aspects 22-24, wherein the configuration information includes a CSI-RS resource set configuration, wherein the CSI-RS resource set configuration includes a configuration for a CSI-RS resource set, and wherein the CSI hypothesis set is associated with different CSI-RS resources from the CSI-RS resource set.
[0259] Aspect 26: The method according to any one of aspects 22-25, wherein the configuration information comprises a configuration for CSI-RS resources, and wherein the CSI hypothesis sets are associated with different antenna port groups.
[0260] Aspect 27: A method according to any one of Aspects 22-26, wherein the configuration information includes a configuration of a CSI-RS resource set for CJT, wherein the CSI-RS resource set is associated with one or more channel measurement resource (CMR) groups, and the one or more channel measurement resource (CMR) groups are associated with corresponding transmit receive points (TRPs) associated with the network entity, and wherein the CSI hypothesis from the CSI hypothesis set includes a configuration of a CMR from each CMR group in the one or more CMR groups and a configuration of an interference measurement resource (IMR) associated with the CSI hypothesis.
[0261] Aspect 28: A method according to Aspect 27, wherein each of the one or more CMR groups includes a first number of CMRs associated with multiple TRP (multi-TRP) CSI estimates, and wherein each of the one or more CMR groups includes the first number or the second number of CMRs associated with a single TRP CSI estimate.
[0262] Aspect 29: The method of aspect 28, wherein the CMRs from each CMR group associated with the CSI hypothesis are CMRs associated with the multi-TRP CSI estimate.
[0263] Aspect 30: A method according to any one of Aspects 22-26, wherein the configuration information includes a configuration of a CSI-RS resource set for CJT, wherein the CSI-RS resource set is associated with a channel measurement resource (CMR) set, the channel measurement resource (CMR) set is associated with a corresponding transmit receive point (TRP) associated with the network entity, and wherein a CSI hypothesis from the CSI hypothesis set includes a configuration of one or more CMRs from the CMR set and a configuration of an interference measurement resource (IMR) associated with the CSI hypothesis.
[0264] Aspect 31: A method according to Aspect 30, wherein a single CMR from the set of CMRs is associated with a single TRP.
[0265] Aspect 32: The method according to any one of aspects 30-31, wherein the configuration information comprises an indication of one or more CMRs from the set of CMRs, the one or more CMRs being included in a corresponding CSI hypothesis from the set of CSI hypotheses.
[0266] Aspect 33: The method according to Aspect 32, wherein the indication comprises a bitmap.
[0267] Aspect 34: A method according to any one of Aspects 22-26, wherein the configuration information includes a configuration of a CSI-RS resource set for CJT, wherein the CSI-RS resource set is associated with a channel measurement resource (CMR) set, the channel measurement resource (CMR) set is associated with a different number of antenna ports, and wherein a CSI hypothesis from the CSI hypothesis set includes a configuration of a CMR from the CMR set and a configuration of an interference measurement resource (IMR) associated with the CSI hypothesis.
[0268] Aspect 35: A method according to Aspect 34, wherein a first CSI hypothesis from the CSI hypothesis set includes a first CMR from the CMR set associated with a first number of antenna ports, and a first IMR, and wherein a second CSI hypothesis from the CSI hypothesis set includes a second CMR from the CMR set associated with a second number of antenna ports, and a second IMR.
[0269] Aspect 36: A method according to any one of Aspects 34-35, wherein a first CSI hypothesis from the CSI hypothesis set includes a first CMR from the CMR set associated with a first number of antenna ports, and a first IMR, and wherein a second CSI hypothesis from the CSI hypothesis set includes the first CMR and a second IMR.
[0270] Aspect 37: A method according to any one of Aspects 22-26, wherein the configuration information includes a configuration of a CSI-RS resource as a channel measurement resource (CMR) for CJT, wherein the CSI-RS resource is associated with an antenna port group set, wherein an antenna port group from the antenna port group set is associated with a plurality of transmit receive points (TRPs) from TRPs associated with the network entity, and wherein a CSI hypothesis from the CSI hypothesis set includes one or more antenna port groups from the antenna port group set and a configuration of an interference measurement resource (IMR) associated with the CSI hypothesis.
[0271] Aspect 38: The method according to Aspect 37, wherein the configuration information includes an indication of the one or more antenna port groups from the set of antenna port groups associated with the CSI hypothesis.
[0272] Aspect 39: The method according to Aspect 38, wherein the indication comprises a bitmap.
[0273] Aspect 40: The method according to any one of aspects 37-39, wherein the configuration information indicates that the CSI-RS resource is associated with a plurality of IMRs including the IMR.
[0274] Aspect 41: A method according to any one of Aspects 22-40, wherein the configuration information includes a configuration for a CSI-RS resource set, wherein the CSI-RS resource set is associated with a channel measurement resource (CMR) group set, each CMR group from the CMR group set is associated with a corresponding transmit receive point (TRP) associated with the network entity, wherein the CSI-RS resource set is associated with one or more CJT groups, each CJT group from the one or more CJT groups includes one or more CMR groups from the CMR group set, wherein a first CSI hypothesis from the CSI hypothesis set associated with a CJT CSI estimation includes one or more CMRs from different CMR groups included in the same CJT group, and wherein a second CSI hypothesis associated with a non-CJT CSI estimation includes one or more CMRs from different CMR groups included in the same CJT group.
[0275] Aspect 42: A method according to any one of Aspects 22-40, wherein the configuration information includes a configuration for a CSI-RS resource set, wherein the CSI-RS resource set is associated with a CJT channel measurement resource (CMR) group set, each CJT CMR group from the CJT CMR group set is associated with one or more transmit receive points (TRPs) associated with the network entity, wherein each CJT CMR group is associated with a CMR set, the CMR sets are associated with a different number of antenna ports, wherein a first CSI hypothesis from the CSI hypothesis set associated with the CJT CSI estimation includes CMRs from a CJT CMR group from the CJT CMR group set, and wherein a second CSI hypothesis associated with a non-CJT CSI estimation includes a first CMR from the first CJT CMR group and a second CMR from the second CJT CMR group.
[0276] Aspect 43: An apparatus for performing wireless communications at a device, the apparatus comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform one or more of the methods described in Aspects 1-21.
[0277] Aspect 44: A device for wireless communication, the device comprising: a memory; and one or more processors coupled to the memory, the one or more processors configured to perform the method according to one or more of aspects 1-21.
[0278] Aspect 45: An apparatus for wireless communication, the apparatus comprising at least one component for performing the method according to one or more of aspects 1-21.
[0279] Aspect 46: A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by a processor to perform the method according to one or more of aspects 1-21.
[0280] Aspect 47: A non-transitory computer-readable medium storing an instruction set for wireless communication, the instruction set comprising one or more instructions that, when executed by one or more processors of a device, cause the device to perform one or more of the methods described in aspects 1-21.
[0281] Aspect 48: An apparatus for wireless communication at a device, the apparatus comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform one or more of the methods described in Aspects 22-42.
[0282] Aspect 49: An apparatus for wireless communication, the apparatus comprising: a memory; and one or more processors coupled to the memory, the one or more processors configured to perform the method according to one or more of aspects 22-42.
[0283] Aspect 50: An apparatus for wireless communication, the apparatus comprising at least one component for performing the method according to one or more of aspects 22-42.
[0284] Aspect 51: A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by a processor to perform the method according to one or more of aspects 22-42.
[0285] Aspect 52: A non-transitory computer-readable medium storing an instruction set for wireless communication, the instruction set comprising one or more instructions that, when executed by one or more processors of a device, cause the device to perform one or more of the methods described in aspects 22-42.
[0286] The foregoing disclosure provides illustration and description, but is not intended to be exhaustive or to limit the aspects to the precise forms disclosed. Modifications and variations may be made in light of the above disclosure or may be acquired from practice of these aspects.
[0287] As used herein, the term "component" is intended to be broadly interpreted as hardware, and / or a combination of hardware and software. Whether referred to as software, firmware, middleware, microcode, hardware description language or other names, "software" should be broadly interpreted as meaning instructions, instruction sets, codes, code segments, program codes, programs, subroutines, software modules, applications, software applications, software packages, routines, subroutines, objects, executable files, threads of execution, procedures and / or functions, etc. As used herein, "processor" is implemented in hardware and / or a combination of hardware and software. It will be clear that the system or method described herein can be implemented by a combination of hardware and / or hardware and software in different forms. The actual dedicated control hardware or software code used to implement these systems and / or methods does not limit various aspects. Therefore, the operation and behavior of the system and / or method are not described herein with reference to specific software codes, because it will be understood by those skilled in the art that software and hardware can be designed to implement the system and / or method based at least in part on the description herein.
[0288] As used herein, "satisfying a threshold" may refer to a value being greater than a threshold, greater than or equal to a threshold, less than a threshold, less than or equal to a threshold, equal to a threshold, not equal to a threshold, etc., depending on the context.
[0289] Although the specific combination of features is set forth in the claims and / or disclosed in the specification, these combinations are not intended to limit the disclosure of various aspects. Many of these features can be combined in a manner that is not specifically set forth in the claims and / or is not disclosed in the specification. The disclosure of various aspects includes each dependent claim combined with each other claim in the claim set. As used herein, the phrase "at least one of" the item list refers to any combination of these items (it includes a single member). As an example, "at least one of a, b or c" is intended to cover a, b, c, a+b, a+c, b+c and a+b+c, and any combination with multiple identical elements (for example, a+a, a+a+a, a+a+b, a+a+c, a+b+b, a+c+c, b+b, b+b+b, b+b+c, c+c and c+c+c, or any other sorting of a, b and c).
[0290] Any element, action or instruction used herein should not be interpreted as key or necessary unless explicitly described as such. In addition, as used herein, the articles "one" and "a kind of" are intended to include one or more items and can be used interchangeably with "one or more". In addition, as used herein, the article "said" is intended to include one or more items connected to the article "said", and can be used interchangeably with "said one or more". In addition, as used herein, the terms "set" and "group" are intended to include one or more items and can be used interchangeably with "one or more". If only one item is intended to be referred to, the phrase "only one" or similar terms will be used. In addition, as used herein, the terms "have", "have", "have" etc. are intended to be open terms, which do not limit the elements they modify (for example, "an element having" A may also have B). In addition, the phrase "based on" is intended to mean "based at least in part on", unless otherwise explicitly stated. Furthermore, as used herein, the term "or" when used in a series is intended to be open-ended and may be used interchangeably with "and / or" unless expressly stated otherwise (eg, if used in conjunction with "either" or "only one of").
Claims
1. A user equipment (UE) for wireless communication, the user equipment (UE) comprising: Memory; and one or more processors coupled to the memory and configured to: receiving configuration information from a network entity indicating a set of coherent joint transmit (CJT) channel state information (CSI) hypotheses associated with CSI estimation; as well as A CSI report is sent to the network entity indicating one or more CSI reference signal (CSI-RS) resource indicators (CRIs) associated with one or more CSI hypotheses in the set of CSI hypotheses, wherein each of the one or more CRIs is associated with a corresponding CSI hypothesis from the one or more CSI hypotheses.
2. The UE according to claim 1, wherein the configuration information includes a configuration of a CSI-RS resource set for CJT, wherein the CSI-RS resource set is associated with one or more channel measurement resource (CMR) groups, the one or more channel measurement resource (CMR) groups are associated with corresponding transmit reception points (TRPs) associated with the network entity, and The CSI hypothesis from the CSI hypothesis set includes a configuration of a CMR from each CMR group of the one or more CMR groups and a configuration of an interference measurement resource (IMR) associated with the CSI hypothesis.
3. The UE of claim 2, wherein each of the one or more CMR groups comprises a first number of CMRs associated with a multi-TRP (multi-TRP) CSI estimation, and Each of the one or more CMR groups includes the first number or the second number of CMRs associated with a single TRP CSI estimate.
4. The UE according to claim 1, wherein the configuration information comprises a configuration of a CSI-RS resource set for CJT, wherein the CSI-RS resource set is associated with a channel measurement resource (CMR) set, the channel measurement resource (CMR) set is associated with a corresponding transmit reception point (TRP) associated with the network entity, and The CSI hypothesis from the CSI hypothesis set includes configuration of one or more CMRs from the CMR set and configuration of interference measurement resources (IMRs) associated with the CSI hypothesis.
5. The UE of claim 4, wherein the configuration information comprises an indication of one or more CMRs from the CMR set, the one or more CMRs included in a corresponding CSI hypothesis from the CSI hypothesis set, and wherein the indication comprises a bitmap.
6. The UE according to claim 1, wherein the configuration information comprises a configuration of a CSI-RS resource set for CJT, wherein the CSI-RS resource set is associated with a channel measurement resource (CMR) set, the channel measurement resource (CMR) set is associated with a different number of antenna ports, and The CSI hypothesis from the CSI hypothesis set includes a configuration of a CMR from the CMR set and a configuration of an interference measurement resource (IMR) associated with the CSI hypothesis.
7. The UE of claim 6, wherein a first CSI hypothesis from the set of CSI hypotheses comprises a first CMR from the set of CMRs associated with a first number of antenna ports, and a first IMR, and A second CSI hypothesis from the CSI hypothesis set includes the first CMR and the second IMR.
8. The UE according to claim 1, wherein the configuration information includes a configuration for a CSI-RS resource as a channel measurement resource (CMR) for CJT, The CSI-RS resource is associated with an antenna port group set, wherein an antenna port group from the set of antenna port groups is associated with a transmit receive point (TRP) from a plurality of TRPs associated with the network entity, and The CSI hypothesis from the CSI hypothesis set includes one or more antenna port groups from the antenna port group set and a configuration of an interference measurement resource (IMR) associated with the CSI hypothesis.
9. The UE of claim 8, wherein the configuration information comprises an indication of the one or more antenna port groups from the set of antenna port groups associated with the CSI hypothesis. 10 . The UE according to claim 8 , wherein the configuration information indicates that the CSI-RS resource is associated with a plurality of IMRs including the IMR.
11. The UE according to claim 1, wherein the configuration information comprises a configuration for a CSI-RS resource set, wherein the CSI-RS resource set is associated with a channel measurement resource (CMR) group set, each CMR group from the CMR group set is associated with a corresponding transmit reception point (TRP) associated with the network entity, wherein the CSI-RS resource set is associated with one or more CJT groups, each CJT group from the one or more CJT groups includes one or more CMR groups from the CMR group set, wherein a first CSI hypothesis from the set of CSI hypotheses associated with a CJT CSI estimate comprises one or more CMRs from different CMR groups included in the same CJT group, and Wherein a second CSI hypothesis associated with the non-CJT CSI estimate includes one or more CMRs from a different CJT group.
12. The UE according to claim 1, wherein the configuration information comprises a configuration for a CSI-RS resource set, wherein the CSI-RS resource set is associated with a CJT channel measurement resource (CMR) group set, each CJT CMR group from the CJT CMR group set is associated with one or more transmit receive points (TRPs) associated with the network entity, wherein each CJT CMR group is associated with a CMR set, the CMR sets being associated with a different number of antenna ports, wherein a first CSI hypothesis from the set of CSI hypotheses associated with a CJT CSI estimate comprises CMRs from a CJT CMR set of the set of CJT CMR sets, and Wherein a second CSI hypothesis associated with the non-CJT CSI estimate includes a first CMR from the first CJT CMR group and a second CMR from the second CJT CMR group.
13. A network entity for wireless communication, the network entity comprising: Memory; and one or more processors coupled to the memory and configured to: transmitting configuration information intended for a user equipment (UE) indicating a set of CSI hypotheses associated with a coherent joint transmit (CJT) channel state information (CSI) estimate; as well as Receive a CSI report associated with the UE indicating one or more CSI reference signal (CSI-RS) resource indicators (CRIs) associated with one or more CSI hypotheses from the set of CSI hypotheses, wherein each of the one or more CRIs is associated with a corresponding CSI hypothesis from the one or more CSI hypotheses.
14. The network entity of claim 13, wherein the one or more processors are further configured to: A transmit reception point (TRP) configuration is sent intended for the UE, wherein a TRP indicated by the TRP configuration is based at least in part on the one or more CRIs indicated in the CSI report.
15. The network entity of claim 13, wherein the configuration information comprises a CSI-RS resource set configuration, wherein the CSI-RS resource set configuration comprises a configuration for a CSI-RS resource set, and wherein the CSI hypothesis set is associated with different CSI-RS resources from the CSI-RS resource set.
16. A method of wireless communication performed by a user equipment (UE), the method comprising: receiving configuration information from a network entity indicating a set of coherent joint transmit (CJT) channel state information (CSI) hypotheses associated with CSI estimation; as well as A CSI report is sent to the network entity indicating one or more CSI reference signal (CSI-RS) resource indicators (CRIs) associated with one or more CSI hypotheses in the set of CSI hypotheses, wherein each of the one or more CRIs is associated with a corresponding CSI hypothesis from the one or more CSI hypotheses.
17. The method according to claim 16, wherein the configuration information comprises a configuration of a CSI-RS resource set for CJT, wherein the CSI-RS resource set is associated with one or more channel measurement resource (CMR) groups, the one or more channel measurement resource (CMR) groups are associated with corresponding transmit reception points (TRPs) associated with the network entity, and The CSI hypothesis from the CSI hypothesis set includes a configuration of a CMR from each CMR group of the one or more CMR groups and a configuration of an interference measurement resource (IMR) associated with the CSI hypothesis.
18. The method of claim 17, wherein each of the one or more CMR groups comprises a first number of CMRs associated with a multi-TRP (multi-TRP) CSI estimate, and Each of the one or more CMR groups includes the first number or the second number of CMRs associated with a single TRP CSI estimate.
19. The method according to claim 16, wherein the configuration information comprises a configuration of a CSI-RS resource set for CJT, wherein the CSI-RS resource set is associated with a channel measurement resource (CMR) set, the channel measurement resource (CMR) set is associated with a corresponding transmit reception point (TRP) associated with the network entity, and The CSI hypothesis from the CSI hypothesis set includes configuration of one or more CMRs from the CMR set and configuration of interference measurement resources (IMRs) associated with the CSI hypothesis.
20. The method of claim 19, wherein the configuration information comprises an indication of one or more CMRs from the set of CMRs, the one or more CMRs included in a corresponding CSI hypothesis from the set of CSI hypotheses, and wherein the indication comprises a bitmap.
21. The method according to claim 16, wherein the configuration information comprises a configuration of a CSI-RS resource set for CJT, wherein the CSI-RS resource set is associated with a channel measurement resource (CMR) set, the channel measurement resource (CMR) set is associated with a different number of antenna ports, and The CSI hypothesis from the CSI hypothesis set includes a configuration of a CMR from the CMR set and a configuration of an interference measurement resource (IMR) associated with the CSI hypothesis.
22. The method of claim 21 , wherein a first CSI hypothesis from the set of CSI hypotheses comprises a first CMR from the set of CMRs associated with a first number of antenna ports, and a first IMR, and A second CSI hypothesis from the CSI hypothesis set includes the first CMR and the second IMR.
23. The method of claim 16, wherein the configuration information includes a configuration of a CSI-RS resource as a channel measurement resource (CMR) for CJT, The CSI-RS resource is associated with an antenna port group set, wherein an antenna port group from the set of antenna port groups is associated with a transmit receive point (TRP) from a plurality of TRPs associated with the network entity, and The CSI hypothesis from the CSI hypothesis set includes one or more antenna port groups from the antenna port group set and a configuration of an interference measurement resource (IMR) associated with the CSI hypothesis.
24. The method of claim 23, wherein the configuration information comprises an indication of the one or more antenna port groups from the set of antenna port groups associated with the CSI hypothesis.
25. The method of claim 23, wherein the configuration information indicates that the CSI-RS resource is associated with a plurality of IMRs including the IMR.
26. The method according to claim 16, wherein the configuration information comprises a configuration for a CSI-RS resource set, wherein the CSI-RS resource set is associated with a channel measurement resource (CMR) group set, each CMR group from the CMR group set is associated with a corresponding transmit reception point (TRP) associated with the network entity, wherein the CSI-RS resource set is associated with one or more CJT groups, each CJT group from the one or more CJT groups includes one or more CMR groups from the CMR group set, wherein a first CSI hypothesis from the set of CSI hypotheses associated with a CJT CSI estimate comprises one or more CMRs from different CMR groups included in the same CJT group, and Wherein a second CSI hypothesis associated with the non-CJT CSI estimate includes one or more CMRs from a different CJT group.
27. The method according to claim 16, wherein the configuration information comprises a configuration for a CSI-RS resource set, wherein the CSI-RS resource set is associated with a CJT channel measurement resource (CMR) group set, each CJT CMR group from the CJT CMR group set is associated with one or more transmit receive points (TRPs) associated with the network entity, wherein each CJT CMR group is associated with a CMR set, the CMR sets being associated with a different number of antenna ports, wherein a first CSI hypothesis from the set of CSI hypotheses associated with a CJT CSI estimate comprises CMRs from a CJT CMR set of the set of CJT CMR sets, and Wherein a second CSI hypothesis associated with the non-CJT CSI estimate includes a first CMR from the first CJT CMR group and a second CMR from the second CJT CMR group.
28. A method of wireless communication performed by a network entity, the method comprising: transmitting configuration information intended for a user equipment (UE) indicating a set of CSI hypotheses associated with a coherent joint transmit (CJT) channel state information (CSI) estimate; as well as Receive a CSI report associated with the UE indicating one or more CSI reference signal (CSI-RS) resource indicators (CRIs) associated with one or more CSI hypotheses from the set of CSI hypotheses, wherein each of the one or more CRIs is associated with a corresponding CSI hypothesis from the one or more CSI hypotheses.
29. The method according to claim 28, further comprising: A transmit reception point (TRP) configuration is sent intended for the UE, wherein a TRP indicated by the TRP configuration is based at least in part on the one or more CRIs indicated in the CSI report.
30. The method of claim 28, wherein the configuration information comprises a CSI-RS resource set configuration, wherein the CSI-RS resource set configuration comprises a configuration for a CSI-RS resource set, and wherein the CSI hypothesis set is associated with different CSI-RS resources from the CSI-RS resource set.
