Decoupling interference measurement slots and channel measurement slots for channel state information reporting
By decoupling the measurement of CSI-RS and CSI-IM resources in different time slots, the high overhead and redundancy of resource allocation in CSI reports is solved, achieving more efficient resource utilization and accurate interference measurement.
Patent Information
- Application Number
- CN202480007947.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2023-02-03
- Filing Date
- 2024-01-11
- Publication Date
- 2025-08-22
AI Technical Summary
In wireless communications, the resource allocation high overhead and redundant channel measurements reported by CSI in the prior art lead to excessive consumption of power, computing and network resources, especially when cross-link interference is severe in full duplex time slots.
By decoupling the interference measurement time slot and the channel measurement time slot, the measurement of CSI-RS resources and CSI-IM resources is allowed to be performed separately in different time slots, reducing resource redundancy and consumption.
It reduces the power, network and computing resource consumption of CSI reports, improves resource utilization efficiency, and reduces the overhead of CSI reports.
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Figure CN120530596A_ABST
Abstract
Description
[0001] CROSS-REFERENCE TO RELATED APPLICATIONS
[0002] This patent application claims priority to U.S. Patent Application No. 18 / 164,127, filed on February 3, 2023, entitled “Decoupled Interference Measurement Slots and Channel Measurement Slots for Channel State Information Reporting,” which is assigned to the assignee of this patent application. The disclosure of that prior application is considered a part of and incorporated by reference into this patent application. Technical Field
[0003] Aspects of the disclosure relate generally to wireless communications and to techniques and apparatus for decoupling interference measurement slots and channel measurement slots for channel state information reporting. Background Art
[0004] Wireless communication systems are widely deployed to provide a variety of telecommunication services, such as telephony, video, data, messaging, and broadcasting. Typical wireless communication systems may employ multiple access technologies capable of supporting 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 collection of enhancements to the Universal Mobile Telecommunications System (UMTS) mobile standard promulgated by the Third Generation Partnership Project (3GPP).
[0005] A wireless network may include one or more network nodes that support communication for wireless communication devices (e.g., a user equipment (UE) or multiple UEs). A UE may communicate with a network node via downlink and uplink communications. A "downlink" (or "DL") refers to the communication link from a network node to a UE, and an "uplink" (or "UL") refers to the communication link from a UE to a network node. Some wireless networks may support device-to-device communication, such as via a local link (e.g., a sidelink (SL), a wireless local area network (WLAN) link, and / or a wireless personal area network (WPAN) link, among other examples).
[0006] The aforementioned multiple access technologies have been adopted in various telecommunications standards to provide a common protocol that enables different UEs to communicate at a city, national, regional, and / or global level. New Radio (NR), which may be referred to as 5G, is a collection of enhancements to the LTE mobile standard released by 3GPP. NR is designed to better support mobile broadband internet access by improving spectral efficiency, reducing costs, improving service, utilizing new spectrum, and integrating better with other open standards using orthogonal frequency division multiplexing (OFDM) with a cyclic prefix (CP) (CP-OFDM) on the downlink and 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. It also supports beamforming, multiple-input, multiple-output (MIMO) antenna technology, and carrier aggregation. As the demand for mobile broadband access continues to increase, further improvements to LTE, NR, and other radio access technologies remain valuable. Summary of the Invention
[0007] Certain aspects described herein relate to a method of wireless communication performed by a user equipment (UE). The method may include receiving configuration information indicating a channel state information (CSI) reference signal (CSI-RS) resource in a first time slot and a first CSI interference measurement (CSI-IM) resource in a second time slot different from the first time slot. The method may include performing a channel measurement in the first time slot using the CSI-RS resource. The method may include performing a first interference measurement in the second time slot using the first CSI-IM resource. The method may include sending a CSI report based at least in part on the channel measurement and the first interference measurement.
[0008] Some aspects described herein relate to a method of wireless communication performed by a network node. The method may include sending configuration information to a UE, the configuration information indicating a CSI-RS resource in a first time slot and a first CSI-IM resource in a second time slot different from the first time slot. The method may include receiving a CSI report from the UE, the CSI report based at least in part on a channel measurement associated with the CSI-RS resource and a first interference measurement associated with the first CSI-IM resource.
[0009] Some aspects described herein relate to a 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 CSI-RS resource in a first time slot and a first CSI-IM resource in a second time slot different from the first time slot. The one or more processors may be configured to perform a channel measurement in the first time slot using the CSI-RS resource. The one or more processors may be configured to perform a first interference measurement in the second time slot using the first CSI-IM resource. The one or more processors may be configured to send a CSI report based at least in part on the channel measurement and the first interference measurement.
[0010] Some aspects described herein relate to a network node for wireless communication. The network node 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 to a UE, the configuration information indicating a CSI-RS resource in a first time slot and a first CSI-IM resource in a second time slot different from the first time slot. The one or more processors may be configured to receive a CSI report from the UE, the CSI report being based at least in part on a channel measurement associated with the CSI-RS resource and a first interference measurement associated with the first CSI-IM resource.
[0011] Some aspects described herein relate to a non-transitory computer-readable medium storing a set of instructions 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-RS resource in a first time slot and a first CSI-IM resource in a second time slot different from the first time slot. The instruction set, when executed by one or more processors of the UE, may cause the UE to perform a channel measurement in the first time slot using the CSI-RS resource. The instruction set, when executed by one or more processors of the UE, may cause the UE to perform a first interference measurement in the second time slot using the first CSI-IM resource. When executed by one or more processors of the UE, the instruction set may cause the UE to send a CSI report based at least in part on the channel measurement and the first interference measurement.
[0012] Some aspects described herein relate to a non-transitory computer-readable medium storing a set of instructions for wireless communication by a network node. The set of instructions, when executed by one or more processors of the network node, may cause the network node to send configuration information to a UE, the configuration information indicating a CSI-RS resource in a first time slot and a first CSI-IM resource in a second time slot different from the first time slot. The set of instructions, when executed by one or more processors of the network node, may cause the network node to receive a CSI report from the UE, the CSI report being based at least in part on a channel measurement associated with the CSI-RS resource and a first interference measurement associated with the first CSI-IM resource.
[0013] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include means for receiving configuration information indicating a CSI-RS resource in a first time slot and a first CSI-IM resource in a second time slot different from the first time slot. The apparatus may include means for performing a channel measurement in the first time slot using the CSI-RS resource. The apparatus may include means for performing a first interference measurement in the second time slot using the first CSI-IM resource. The apparatus may include means for sending a CSI report based at least in part on the channel measurement and the first interference measurement.
[0014] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include means for sending configuration information to a UE, the configuration information indicating a CSI-RS resource in a first time slot and a first CSI-IM resource in a second time slot different from the first time slot. The apparatus may include means for receiving a CSI report from the UE, the CSI report being based at least in part on a channel measurement associated with the CSI-RS resource and a first interference measurement associated with the first CSI-IM resource.
[0015] 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 substantially described herein with reference to and as illustrated in the accompanying figures and description.
[0016] The features and technical advantages of the examples according to the present disclosure have been outlined quite broadly above so that the detailed description that follows may be better understood. Additional features and advantages will be described below. The concepts and specific examples disclosed may be readily used as a basis for modifying or designing other structures for carrying out the same purposes of the present disclosure. Such equivalent constructions do not depart from the scope of the appended claims. The characteristics of the concepts disclosed herein (both their organization and method of operation) and the associated advantages will be better understood from the following description when considered in conjunction with the accompanying drawings. Each of the figures is provided for the purpose of illustration and description and not as a definition of limitations on the claims.
[0017] While various aspects are described in this disclosure through the use of a few examples, those skilled in the art will appreciate that these aspects can be implemented in many different arrangements and scenarios. The techniques described herein can be implemented using different platform types, devices, systems, shapes, sizes, and / or packaging arrangements. For example, some aspects can be implemented via integrated chip embodiments or other non-module-based devices (e.g., end-user devices, vehicles, communications devices, computing devices, industrial equipment, retail / purchase equipment, medical devices, 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. Devices incorporating the described aspects and features may include additional components and features for the implementation and practice of the claimed and described aspects. For example, the transmission and reception of wireless signals may include one or more components for analog and digital purposes (e.g., hardware components including antennas, radio frequency (RF) chains, power amplifiers, modulators, buffers, processors, interleavers, adders, and / or summers). The various aspects described herein are intended to be practiced in a variety of devices, components, systems, distributed arrangements, and / or end-user devices of various sizes, shapes, and configurations. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order that the above-described features of the present disclosure may be understood in detail, a more particular description, briefly summarized above, may be obtained by reference to various aspects, some of which are illustrated in the accompanying drawings. It should be noted, however, that the drawings illustrate only certain typical aspects of the present disclosure and are therefore not to be considered limiting of its scope, as the description may admit of other equally effective aspects. The same reference numerals in different drawings may identify the same or similar elements.
[0019] Figure 1 is a diagram illustrating an example of a wireless network according to the present disclosure.
[0020] Figure 2 is a diagram illustrating an example of a network node communicating with a user equipment (UE) in a wireless network according to the present disclosure.
[0021] Figure 3 is a diagram illustrating an example disaggregated base station architecture according to the present disclosure.
[0022] Figures 4A-4C is a diagram illustrating an example of full-duplex (FD) communication according to the present disclosure.
[0023] Figure 5 is a diagram illustrating an example of FD communication in a wireless network according to the present disclosure.
[0024] Figure 6 is a diagram illustrating an example of a channel state information (CSI) reporting configuration according to the present disclosure.
[0025] Figures 7A-7B is a diagram illustrating an example associated with decoupling an interference measurement slot and a channel measurement slot for CSI reporting according to the present disclosure.
[0026] Figure 8 is a diagram of another example associated with decoupling an interference measurement slot and a channel measurement slot for CSI reporting according to the present disclosure.
[0027] Figure 9 is a diagram illustrating an example process performed, for example, by a UE according to the present disclosure.
[0028] Figure 10 is a diagram illustrating an example process, eg, performed by a network node, according to the present disclosure.
[0029] Figure 11 is a diagram of an example apparatus for wireless communications according to the present disclosure.
[0030] Figure 12 is a diagram of another example apparatus for wireless communications according to the present disclosure. DETAILED DESCRIPTION
[0031] Various aspects of the present disclosure are described more fully below with reference to the accompanying drawings. However, the present disclosure can be embodied in many different forms and should not be interpreted as being limited to any specific structure or function given throughout the present disclosure. On the contrary, these aspects are provided so that the present disclosure will be thorough and complete, and will fully convey the scope of the present disclosure to those skilled in the art. It should be understood by those skilled in the art that the scope of the present disclosure is intended to cover any aspect of the present disclosure disclosed herein, whether it is realized independently of any other aspect of the present disclosure or realized in combination with any other aspect of the present disclosure. For example, any number of aspects set forth herein can be used to realize 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, functions, or structures and functions in addition to or different from the various aspects of the present disclosure set forth herein. It should be understood that any aspect of the present disclosure disclosed herein can be embodied by one or more elements of the claims.
[0032] In some wireless communication networks, a user equipment (UE) may transmit information about the downlink channel to a network node. For example, the UE may perform channel estimation and may report channel estimation parameters (sometimes referred to as channel state information (CSI)) to the network node, e.g., via CSI reports. For static channels and / or frame structures associated with a constant slot format, CSI reporting may be relatively infrequent. However, for dynamic channels and / or frame structures associated with a changing slot format, CSI reporting may be more frequent. For example, a network node and / or UE may be configured to operate in sub-band full-duplex (SBFD) mode, in which the network node and / or UE may use multiple frequency sub-bands to simultaneously receive and transmit communications in the same time domain resource (e.g., a timeslot). In contrast to half-duplex (HD) timeslots, in which the entire bandwidth can be associated with either uplink or downlink communications, in SBFD timeslots, one or more sub-bands may be associated with downlink communications, while one or more other sub-bands may be associated with uplink communications.
[0033] In this regard, CSI may differ between HD timeslots and nearby SBFD timeslots because subbands within SBFD timeslots may be subject to cross-link interference (CLI) generated by communications in other subbands. Therefore, to provide accurate CSI, the UE may need to use a first interference measurement resource (IMR) to measure interference within the HD timeslot and a second IMR to measure interference in the SBFD timeslot. Because the CSI reporting configuration may require that channel measurement resources (CMRs) and IMRs appear in the same timeslot (sometimes referred to herein as coupled CMRs and IMRs), measuring interference in both HD and SBFD timeslots may result in high resource allocation. More specifically, the UE may need to be allocated at least a first CMR and a coupled first IMR in a first timeslot (e.g., an HD timeslot) and a second CMR and a coupled second IMR in a second timeslot (e.g., an SBFD timeslot). This results in high overhead and, consequently, higher power, computational, and network resource consumption for CSI reporting.
[0034] Certain techniques and apparatus described herein enable decoupling of interference measurement slots and channel measurement slots for CSI reporting to reduce overhead associated with CSI reporting and / or reduce power, network, and / or computational resource consumption associated with redundant channel measurements. In some aspects, a UE may receive a CSI reporting configuration that indicates a CMR in a first slot (e.g., an HD slot) and one or more associated IMRs, such as an IMR in a second slot (e.g., a SBFD slot) that is different from the first slot. Consequently, the UE may use the CMR to perform channel measurements in the first slot, use the IMR to perform interference measurements in the second slot, and transmit a CSI report based at least in part on the channel measurements (e.g., HD slot channel measurements) and the interference measurements (e.g., SBFD slot interference measurements). By decoupling the CMR from the IMR (e.g., by enabling resources to be provided in different slots), overhead may be reduced because a single CMR can be associated with multiple IMRs (e.g., IMRs associated with multiple slots), thereby eliminating redundant channel measurements while providing accurate interference measurements across different slot structures. In this regard, decoupling CMR from IMR may result in reduced power, network, and / or computational resource consumption for CSI reporting.
[0035] Several aspects of telecommunications systems will now be presented with reference to various devices and techniques. These devices and techniques are described in the detailed description that follows and are illustrated in the accompanying drawings by various blocks, modules, components, circuits, steps, processes, algorithms, etc. (collectively, "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.
[0036] Although various aspects may be described herein using terminology generally 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 RATs, 4G RATs, and / or post-5G RATs (e.g., 6G).
[0037] Figure 1 is a diagram illustrating an example of a wireless network 100 according to the present disclosure. Wireless network 100 may be or may include elements of a 5G (e.g., NR) network and / or a 4G (e.g., Long Term Evolution (LTE)) network, among other examples. Wireless network 100 may include one or more network nodes 110 (illustrated as network node 110a, network node 110b, network node 110c, and network node 110d), user equipment (UE) 120 or multiple UEs 120 (illustrated as UE 120a, UE 120b, UE 120c, UE 120d, and UE 120e), and / or other entities. Network node 110 is a network node that communicates with UE 120. As shown, network node 110 may include one or more network nodes. For example, network node 110 may be a converged network node, meaning that the converged network node is configured to utilize a radio protocol stack that is physically or logically integrated within a single radio access network (RAN) node (e.g., within a single device or unit). As another example, the network node 110 may be a disaggregated network node (sometimes referred to as a disaggregated base station), meaning that the network node 110 is configured to utilize a protocol stack that is physically or logically distributed between two or more nodes, such as one or more central units (CUs), one or more distributed units (DUs), and one or more radio units (RUs).
[0038] In some examples, network node 110 is or includes a network node that communicates with UE 120 via a radio access link (e.g., a RU). In some examples, network node 110 is or includes a network node that communicates with other network nodes 110 via a fronthaul link or a midhaul link (e.g., a DU). In some examples, network node 110 is or includes a network node that communicates with other network nodes 110 via a midhaul link or with a core network via a backhaul link, such as a CU. In some examples, network node 110 (e.g., an aggregation network node 110 or a disaggregation network node 110) may include multiple network nodes, such as one or more RUs, one or more CUs, and / or one or more DUs. Network node 110 may include, for example, 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 transmission reception point (TRP), a DU, a RU, a CU, a mobility element of a network, a core network node, a network element, network equipment, a RAN node, or a combination thereof. In some examples, network nodes 110 may interconnect with each other or to one or more other network nodes 110 in wireless network 100 using any suitable transport network through various types of fronthaul, midhaul, and / or backhaul interfaces, such as direct physical connections, air interfaces, or virtual networks.
[0039] In some examples, network node 110 may provide communication coverage for a specific geographic area. In the Third Generation Partnership Project (3GPP), the term "cell" can refer to the coverage area of network node 110 and / or a network node subsystem serving that coverage area, depending on the context in which the term is used. Network node 110 may provide communication coverage for a macrocell, a picocell, a femtocell, and / or another type of cell. A macrocell may cover a relatively large geographic area (e.g., an area with a radius of several kilometers) and may allow unrestricted access by UEs 120 with service subscriptions. A picocell may cover a relatively small geographic area and may allow unrestricted access by UEs 120 with service subscriptions. A femtocell may cover a relatively small geographic area (e.g., a home) and may allow restricted access by UEs 120 associated with the femtocell (e.g., UEs 120 in a Closed Subscriber Group (CSG)). A network node 110 for a macrocell may be referred to as a macro network node. A network node 110 for a picocell may be referred to as a pico network node. The network node 110 for a femto cell may be referred to as a femto network node or an in-home network node. Figure 1In the example shown, network node 110a may be a macro network node for macro cell 102a, network node 110b may be a pico network node for pico cell 102b, and network node 110c may be a femto network node for femto cell 102c. A network node may support one or more (e.g., three) cells. In some examples, a cell may not necessarily be stationary, and the geographic area of a cell may move depending on the location of a mobile network node 110 (e.g., a mobile network node).
[0040] In some aspects, the term "base station" or "network node" may refer to an aggregated base station, a disaggregated base station, an integrated access and backhaul (IAB) node, a relay node, or one or more components thereof. For example, in some aspects, a "base station" or "network node" may refer to a CU, DU, RU, a near real-time (near-RT) RAN intelligent controller (RIC), a non-real-time (non-RT) RIC, or a combination thereof. In some aspects, the term "base station" or "network node" may refer to a device configured to perform one or more functions, such as those described herein in conjunction with network node 110. In some aspects, the term "base station" or "network node" may refer to multiple devices configured to perform one or more functions. For example, in some distributed systems, multiple different devices (which may be located in the same or different geographic locations) may each be configured to perform at least a portion of a function, or replicate the performance of at least a portion of a function, and the term "base station" or "network node" may refer to any one or more of those different devices. In some aspects, the term "base station" or "network node" may refer to one or more virtual base stations or one or more virtual base station functions. For example, in some aspects, two or more base station functions may be instantiated on a single device. In some aspects, the term "base station" or "network node" may refer to one of the base station functions but not the other. In this manner, a single device may include more than one base station.
[0041] The wireless network 100 may include one or more relay stations. A relay station is a network node that can receive data transmissions from an upstream node (e.g., a network node 110 or a UE 120) and send data transmissions to a downstream node (e.g., a UE 120 or a network node 110). A relay station may be a UE 120 that is capable of relaying transmissions for other UEs 120. Figure 1 In the example shown, a network node 110d (e.g., a relay network node) may communicate with a network node 110a (e.g., a macro network node) and a UE 120d to facilitate communications between the network node 110a and the UE 120d. A network node 110 that relays communications may be referred to as a relay station, a relay base station, a relay network node, a relay node, a relay, etc.
[0042] The wireless network 100 may be a heterogeneous network that includes different types of network nodes 110, such as macro network nodes, pico network nodes, femto network nodes, relay network nodes, etc. These different types of network nodes 110 may have different transmit power levels, different coverage areas, and / or different impacts on interference in the wireless network 100. For example, a macro network node may have a high transmit power level (e.g., 5 to 40 watts), while a pico network node, a femto network node, and a relay network node may have a lower transmit power level (e.g., 0.1 to 2 watts).
[0043] The network controller 130 may be coupled to or in communication with a set of network nodes 110 and may provide coordination and control for these network nodes 110. The network controller 130 may communicate with the network nodes 110 via a backhaul communication link or a midhaul communication link. The network nodes 110 may communicate with each other directly or indirectly via wireless or wired backhaul communication links. In some aspects, the network controller 130 may be or may include a CU or a core network device.
[0044] UEs 120 may be dispersed throughout wireless network 100, and each UE 120 may be stationary or mobile. UEs 120 may include, for example, access terminals, terminals, mobile stations, and / or subscriber units. UEs 120 may be cellular phones (e.g., smartphones), personal digital assistants (PDAs), wireless modems, wireless communication devices, handheld devices, laptop computers, cordless phones, wireless local loop (WLL) stations, tablet devices, cameras, gaming devices, netbooks, smartbooks, ultrabooks, medical devices, biometric devices, wearable devices (e.g., smart watches, smart clothing, smart glasses, smart wristbands, smart jewelry (e.g., smart rings or smart bracelets)), entertainment devices (e.g., music devices, video devices, and / or satellite radios), vehicle components or sensors, smart meters / sensors, industrial manufacturing equipment, global positioning system devices, UE functionality of a network node, and / or any other suitable device configured to communicate via a wireless or wired medium.
[0045] Some UEs 120 may be considered 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 network node, another device (e.g., a remote device), or some other entity. Some UEs 120 may be considered Internet of Things (IoT) devices and / or may be implemented as NB-IoT (Narrowband IoT) devices. Some UEs 120 may be considered customer premises equipment (CPE). UE 120 may be included in a housing that houses components of UE 120 (e.g., a processor component and / or a memory component). In some examples, the processor component and the memory component may be coupled together. For example, the processor component (e.g., one or more processors) and the memory component (e.g., memory) may be operatively coupled, communicatively coupled, electronically coupled, and / or electrically coupled.
[0046] 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. A RAT may be referred to as a radio technology, air interface, etc. A 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.
[0047] In some examples, two or more UEs 120 (e.g., shown as UE 120a and UE 120e) can communicate directly (e.g., without using network node 110 as an intermediary for communicating with each other) using one or more sidelink channels. For example, UEs 120 can communicate using peer-to-peer (P2P) communication, device-to-device (D2D) communication, vehicle-to-everything (V2X) protocols (e.g., which can include vehicle-to-vehicle (V2V) protocols, vehicle-to-infrastructure (V2I) protocols, or vehicle-to-pedestrian (V2P) protocols), and / or mesh networks. In such examples, UEs 120 can perform scheduling operations, resource selection operations, and / or other operations described elsewhere herein as being performed by network node 110.
[0048] Devices in wireless network 100 can communicate using an electromagnetic spectrum, which can be subdivided into various categories, bands, channels, etc., based on frequency or wavelength. For example, devices in wireless network 100 can communicate using one or more operating frequency bands. In 5G NR, two initial operating frequency bands have been identified as frequency ranges designated FR1 (410 MHz-7.125 GHz) and FR2 (24.25 GHz-52.6 GHz). It should be understood that, although a portion of FR1 is greater than 6 GHz, FR1 is often (interchangeably) referred to as a "sub-6 GHz" band in various literature and articles. A similar naming issue sometimes arises with FR2, which is often (interchangeably) referred to as a "millimeter wave" band in literature and articles, although this is distinct from the extremely high frequency (EHF) band (30 GHz-300 GHz), which is recognized as a "millimeter wave" band by the International Telecommunication Union (ITU).
[0049] Frequencies between FR1 and FR2 are often referred to as mid-band frequencies. Recent 5G NR research has identified operating bands for these mid-band frequencies as the frequency range designation FR3 (7.125 GHz-24.25 GHz). Frequency bands falling within FR3 can inherit FR1 characteristics and / or FR2 characteristics, effectively extending the features of FR1 and / or FR2 to mid-band frequencies. Furthermore, higher frequency bands are currently being explored to extend 5G NR operation beyond 52.6 GHz. For example, three higher operating bands have been identified with the frequency range designations FR4a or FR4-1 (52.6 GHz-71 GHz), FR4 (52.6 GHz-114.25 GHz), and FR5 (114.25 GHz-300 GHz). Each of these higher frequency bands falls within the EHF band.
[0050] With the above examples in mind, unless otherwise specifically stated, it should be understood that the term "sub-6 GHz," etc., if used herein, can broadly refer to frequencies that may be less than 6 GHz, may be within FR1, or may include mid-band frequencies. Furthermore, unless otherwise specifically stated, it should be understood that the term "millimeter wave," etc., if used herein, can broadly refer to frequencies that may include mid-band frequencies, may be within FR2, FR4, FR4-a, FR4-1, and / or FR5, or may be within the EHF band. It is contemplated that the frequencies included in these operating bands (e.g., FR1, FR2, FR3, FR4, FR4-a, FR4-1, and / or FR5) may be modified, and the techniques described herein are applicable to those modified frequency ranges.
[0051] In some aspects, UE 120 may include a communications manager 140. As described in greater detail elsewhere herein, communications manager 140 may receive configuration information indicating a CSI reference signal (CSI-RS) resource in a first time slot and a first CSI interference measurement (CSI-IM) resource in a second time slot different from the first time slot; perform a channel measurement in the first time slot using the CSI-RS resource; perform a first interference measurement in the second time slot using the first CSI-IM resource; and send a CSI report based at least in part on the channel measurement and the first interference measurement. Additionally or alternatively, communications manager 140 may perform one or more other operations described herein.
[0052] In some aspects, the network node 110 may include a communication manager 150. As described in greater detail elsewhere herein, the communication manager 150 may send configuration information to a UE, the configuration information indicating a CSI-RS resource in a first time slot and a first CSI-IM resource in a second time slot different from the first time slot; and receive a CSI report from the UE, the CSI report being based at least in part on a channel measurement associated with the CSI-RS resource and a first interference measurement associated with the first CSI-IM resource. Additionally or alternatively, the communication manager 150 may perform one or more other operations described herein.
[0053] As mentioned above, Figure 1 are provided as examples. Other examples can be found in the Figure 1 The examples described are different.
[0054] Figure 2 2 is a diagram illustrating an example 200 of a network node 110 communicating with a UE 120 in a wireless network 100 according to the present disclosure. The network node 110 may be equipped with a set of antennas 234a through 234t, such as T antennas (T ≥ 1). The UE 120 may be equipped with a set of antennas 252a through 252r, such as R antennas (R ≥ 1). The network node 110 of example 200 includes one or more radio frequency components, such as antennas 234 and a modem 232. In some examples, the network node 110 may include an interface, a communication component, or another component that facilitates communication with the UE 120 or another network node. Some network nodes 110 may not include radio frequency components, such as one or more CUs or one or more DUs, that facilitate direct communication with the UE 120.
[0055] At network node 110, transmit processor 220 may receive data intended for UE 120 (or a set of UEs 120) from data source 212. Transmit processor 220 may select one or more modulation and coding schemes (MCS) for UE 120 based at least in part on one or more channel quality indicators (CQIs) received from UE 120. Network node 110 may process (e.g., encode and modulate) the data for UE 120 based at least in part on the MCS(s) selected for UE 120 and may provide data symbols for UE 120. 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., a cell-specific reference signal (CRS) or a demodulation reference signal (DMRS)) and synchronization signals (e.g., a primary synchronization signal (PSS) or a secondary synchronization signal (SSS)). The transmit (TX) multiple-input, multiple-output (MIMO) processor 230 may perform spatial processing (e.g., precoding) on data symbols, control symbols, overhead symbols, and / or reference symbols, as 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 through 232t). For example, each output symbol stream may be provided to a modulator component (shown as MOD) of the modem 232. Each modem 232 may process a corresponding output symbol stream (e.g., for OFDM) using a corresponding modulator component to obtain an output sample stream. Each modem 232 may also process (e.g., convert to analog, amplify, filter, and / or frequency 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).
[0056] At the UE 120, an antenna set 252 (shown as antennas 252a through 252r) may receive downlink signals from the network node 110 and / or other network nodes 110 and may provide a set of received signals (e.g., R received signals) to a modem set 254 (e.g., R modems) (shown as modems 254a through 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 the 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 a 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 examples. In some examples, one or more components of the UE 120 may be included in a housing 284.
[0057] The network controller 130 may include a communication unit 294, a controller / processor 290, and a memory 292. The network controller 130 may include, for example, one or more devices in a core network. The network controller 130 may communicate with the network node 110 via the communication unit 294.
[0058] One or more antennas (e.g., antennas 234a through 234t and / or antennas 252a through 252r) may include, or be included in, one or more antenna planes, one or more antenna groups, one or more antenna element sets, and / or one or more antenna arrays. Antenna planes, antenna groups, antenna element sets, and / or antenna arrays may include one or more antenna elements (within a single housing or multiple housings), coplanar antenna element sets, non-coplanar antenna element sets, and / or antenna elements coupled to one or more transmit and / or receive components (e.g., Figure 2 One or more antenna elements of one or more components).
[0059] On the uplink, at the UE 120, a transmit processor 264 may receive and process data from a data source 262 and control information (e.g., for reports including RSRP, RSSI, RSRQ, and / or CQI) from the controller / processor 280. The transmit processor 264 may generate reference symbols for one or more reference signals. The symbols from the transmit processor 264 may be precoded by the TX MIMO processor 266 (if applicable), further processed by the modem 254 (e.g., for DFT-s-OFDM or CP-OFDM), and transmitted to the network node 110. In some examples, the modem 254 of the UE 120 may include a modulator and a demodulator. In some examples, the UE 120 includes a transceiver. The transceiver may include any combination of antenna(s) 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 operations described herein (eg, with reference to Figure 7A-12 ) any aspects of any of the methods described in .
[0060] At network node 110, uplink signals from UE 120 and / or other UEs may be received by antenna 234, processed by modem 232 (e.g., a demodulator component of modem 232, shown as DEMOD), detected by MIMO detector 236 (if applicable), and further processed by receive processor 238 to obtain decoded data and control information sent by UE 120. Receive processor 238 may provide the decoded data to a data sink 239 and the decoded control information to controller / processor 240. Network node 110 may include a communication unit 244 and may communicate with network controller 130 via communication unit 244. Network node 110 may include a scheduler 246 to schedule one or more UEs 120 for downlink and / or uplink communications. In some examples, modem 232 of network node 110 may include a modulator and a demodulator. In some examples, network node 110 may include a transceiver. The transceiver may include any combination of antenna(s) 234, modem(s) 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 aspects of any of the methods described herein (e.g., with reference to FIG. Figure 7A-12 ).
[0061] The controller / processor 240 of the network node 110, the controller / processor 280 of the UE 120, and / or Figure 2 Any other component(s) of the may perform one or more techniques associated with decoupling interference measurement slots and channel measurement slots for CSI reporting, as described in more detail elsewhere herein. For example, the controller / processor 240 of the network node 110, the controller / processor 280 of the UE 120, and / or Figure 2 Any other component(s) may execute or direct e.g. Figure 9 The process of 900 Figure 10 1000 and / or other processes as described herein. Memory 242 and memory 282 may store data and program codes for network node 110 and UE 120, respectively. In some examples, memory 242 and / or memory 282 may include a non-transitory computer-readable medium storing one or more instructions (e.g., code and / or program code) for wireless communication. For example, the one or more instructions, when executed by one or more processors of network node 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 node 110 to perform or direct, for example, Figure 9 The process of 900 Figure 10 The operations of process 1000 and / or other processes as described herein. In some examples, executing instructions can include running instructions, converting instructions, compiling instructions, and / or interpreting instructions, among other examples.
[0062] In some aspects, the UE 120 includes: means for receiving configuration information indicating a CSI-RS resource in a first time slot and a first CSI-IM resource in a second time slot different from the first time slot; means for performing a channel measurement in the first time slot using the CSI-RS resource; means for performing a first interference measurement in the second time slot using the first CSI-IM resource; and / or means for sending a CSI report based at least in part on the channel measurement and the first interference measurement. Means for the UE 120 to perform the operations described herein may include, for example, one or more of the communications manager 140, the antenna 252, the modem 254, the MIMO detector 256, the receive processor 258, the transmit processor 264, the TX MIMO processor 266, the controller / processor 280, or the memory 282.
[0063] In some aspects, the network node 110 includes: means for sending configuration information to a UE indicating a CSI-RS resource in a first time slot and a first CSI-IM resource in a second time slot different from the first time slot; and / or means for receiving a CSI report from the UE, the CSI report being based at least in part on a channel measurement associated with the CSI-RS resource and a first interference measurement associated with the first CSI-IM resource. Means for the network node 110 to perform the operations described herein may include, for example, one or more of the following: 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.
[0064] Although Figure 2 The blocks in FIG. 2 are shown as distinct components, but the functionality described above with respect to the blocks may be implemented in a single hardware, software, or combined component or in various combinations of components. For example, the functionality described with respect to the transmit processor 264, the receive processor 258, and / or the TX MIMO processor 266 may be performed by or under the control of the controller / processor 280.
[0065] As mentioned above, Figure 2 are provided as examples. Other examples can be found in the Figure 2 The examples described are different.
[0066] The deployment of a communication system (such as a 5G NR system) can be arranged in a variety of ways using various components or constituent parts. In a 5G NR system or network, a network node, network entity, mobility element of the network, RAN node, core network node, network element, base station, or network device can be implemented in a converged or disaggregated architecture. For example, a base station (such as a Node B (NB), an evolved NB (eNB), a NR base station, a 5G NB, an access point (AP), a Transmission Relay Protocol (TRP), or a cell) or one or more units (or one or more components) performing base station functions can be implemented as a converged base station (also known as a standalone base station or a single-chip base station) or a disaggregated base station. A "network entity" or "network node" can refer to a disaggregated base station, or one or more units of a disaggregated base station (e.g., one or more CUs, one or more DUs, one or more RUs, or a combination thereof).
[0067] A converged base station (e.g., a converged network node) can be configured to utilize a radio protocol stack that is physically or logically integrated within a single RAN node (e.g., within a single device or unit). A disaggregated base station (e.g., a disaggregated network node) can be configured to utilize a protocol stack that is physically or logically distributed between two or more units (e.g., one or more CUs, one or more DUs, or one or more RUs). In some examples, the CU can be implemented within a network node, and one or more DUs can be co-located with the CU, or alternatively, can be geographically or virtually distributed across one or more other network nodes. The DU can be implemented to communicate with one or more RUs. Each of the CU, DU, and RU can also be implemented as a virtual unit, such as a virtual central unit (VCU), a virtual distributed unit (VDU), or a virtual radio unit (VRU), among other examples.
[0068] Base station-type operation or network design can take into account the aggregated nature of base station functionality. For example, disaggregated base stations can be utilized in IAB networks, open radio access networks (O-RAN (such as those sponsored by the O-RAN Alliance)), or virtualized radio access networks (vRAN, also known as cloud radio access networks (C-RAN)) to facilitate the expansion of communication systems by separating base station functionality into one or more independently deployable units. A disaggregated base station can include functionality implemented across two or more units at various physical locations, as well as functionality implemented virtually for at least one unit, which can enable flexibility in network design. The various units of a disaggregated base station can be configured for wired or wireless communication with at least one other unit of the disaggregated base station.
[0069] Figure 3 FIG2 is a diagram illustrating an example disaggregated base station architecture 300 according to the present disclosure. Disaggregated 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 via one or more disaggregated control units (such as a near-RT RIC 325 via an E2 link, a non-RTRIC 315 associated with a service management and orchestration (SMO) framework 305, or both). CU 310 may communicate with one or more DUs 330 via corresponding midhaul links (e.g., via an F1 interface). Each of DUs 330 may communicate with one or more RUs 340 via corresponding fronthaul links. Each of RUs 340 may communicate with one or more UEs 120 via corresponding radio frequency (RF) access links. In some embodiments, a UE 120 may be served simultaneously by multiple RUs 340.
[0070] Each unit (including the CU 310, DU 330, RU 340, as well as the near-RT RIC 325, the non-RT RIC 315, and the SMO framework 305) may include or be coupled to one or more interfaces configured to receive or transmit signals, data, or information (collectively, signals) via a wired or wireless transmission medium. Each 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 the transmission medium. In some examples, each unit may include a wired interface configured to receive signals or transmit signals to one or more other units via a wired transmission medium, and a wireless interface that may include a receiver, transmitter, or transceiver (such as an RF transceiver) configured to receive or transmit signals, or both, to one or more other units via a wireless transmission medium.
[0071] In some aspects, the CU 310 may host one or more higher-layer control functions. Such control functions may also include radio resource control (RRC) functions, packet data convergence protocol (PDCP) functions, or service data adaptation protocol (SDAP) functions, among others. Each control function may be implemented using an interface configured to communicate signals with other control functions hosted by the CU 310. The CU 310 may be configured to handle user plane functions (e.g., central unit-user plane (CU-UP) functions), control plane functions (e.g., central unit-control plane (CU-CP) functions), or a combination thereof. In some embodiments, the CU 310 may be logically divided into one or more CU-UP units and one or more CU-CP units. When implemented in an O-RAN configuration, the CU-UP units may communicate bidirectionally with the CU-CP units via an interface, such as an E1 interface. The CU 310 may be configured to communicate with the DU 330 as needed for network control and signaling.
[0072] 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 carry one or more of a radio link control (RLC) layer, a medium access control (MAC) layer, and one or more higher physical (PHY) layers, depending at least in part on a functional partitioning (such as that defined by 3GPP). In some aspects, the one or more higher PHY layers may be implemented by one or more modules for forward error correction (FEC) encoding and decoding, scrambling, modulation and demodulation, and the like. In some aspects, the DU 330 may further carry one or more lower 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, among other examples. Each layer (which may also be referred to as a module) may be implemented using an interface configured to communicate signals with other layers (and modules) carried by the DU 330 or with control functions carried by the CU 310.
[0073] Each RU 340 may implement lower layer functions. In some deployments, a RU 340 controlled by a DU 330 may correspond to a logical node that carries RF processing functions or low PHY layer functions, such as performing FFT, performing iFFT, digital beamforming, or PRACH extraction and filtering, among other examples, based on a functional split (e.g., a functional split defined by 3GPP) (e.g., a lower layer functional split). In such an architecture, each RU 340 may be operated to handle over-the-air (OTA) communications with one or more UEs 120. In some embodiments, real-time and non-real-time aspects of control 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 (e.g., a vRAN architecture).
[0074] The SMO framework 305 can be configured to support RAN deployment and the provisioning of non-virtualized and virtualized network elements. For non-virtualized network elements, the SMO framework 305 can be configured to support the deployment of dedicated physical resources for RAN coverage requirements, which can be managed via an operations and maintenance interface (such as the O1 interface). For virtualized network elements, the SMO framework 305 can be configured to interact with a cloud computing platform (such as the 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 the O2 interface). Such virtualized network elements may include, but are not limited to, the CU 310, DU 330, RU 340, non-RT RIC 315, and near-RT RIC 325. In some embodiments, the SMO framework 305 can communicate with hardware aspects of the 4G RAN (such as the Open eNB (O-eNB) 311) via the O1 interface. Additionally, in some embodiments, the SMO framework 305 can communicate directly with each of one or more RUs 340 via a corresponding O1 interface. The SMO framework 305 may also include a non-RT RIC 315 configured to support the functionality of the SMO framework 305 .
[0075] The non-RT RIC 315 may be configured to include logic functions that implement 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 in communication with the near-RT RIC 325 (e.g., via an A1 interface). The near-RT RIC 325 may be configured to include logic functions that implement near-real-time control and optimization of RAN elements and resources through data collection and actions via an interface connecting one or more CUs 310, one or more DUs 330, or both, and an O-eNB to the near-RT RIC 325 (e.g., via an E2 interface).
[0076] In some embodiments, to generate AI / ML models to be deployed in near-RT RIC 325, non-RT RIC 315 can receive parameters or external enrichment information from an external server. Such information can be used by near-RT RIC 325 and can be received from non-network data sources or from network functions at SMO framework 305 or non-RT RIC 315. In some examples, non-RT RIC 315 or near-RT RIC 325 can be configured to tune RAN behavior or performance. For example, non-RT RIC 315 can monitor long-term trends and patterns in performance and employ AI / ML models to perform corrective actions through SMO framework 305 (such as via reconfiguration of the O1 interface) or through the creation of RAN management policies (such as A1 interface policies).
[0077] As mentioned above, Figure 3 are provided as examples. Other examples can be found in the Figure 3 The examples described are different.
[0078] Figures 4A-4C Figures 400, 410, and 420 illustrate examples of full-duplex (FD) communication according to the present disclosure. "FD communication" in a wireless network refers to simultaneous, bidirectional communication between devices in the wireless network. For example, a UE 120 operating in FD mode can transmit uplink communications and receive downlink communications simultaneously (e.g., in the same time slot or the same symbol). "HD communication" in a wireless network refers to unidirectional communication (e.g., downlink-only or uplink-only) between devices at a given time (e.g., in a given time slot or a given symbol).
[0079] Figure 4A The example 400 includes UE1 402 (eg, UE 120) and two network nodes 404-1, 404-2 (eg, network node 110), where UE1 402 is sending UL transmissions to network node 404-1 and is receiving DL transmissions from network node 404-2. Figure 4A In the example 400, FD is enabled for UE1 402 but not for the network nodes 404-1, 404-2. Figure 4B The example 410 includes two UEs shown as UE1 402-1 and UE2 402-2, and a network node 404, where UE1 402-1 is receiving a DL transmission from the network node 404 and UE2 402-2 is sending an UL transmission to the network node 404. Figure 4B In the example 410, FD is enabled for the network node 404 but not for UE1 402-1 and UE2 402-2. Figure 4CExample 420 includes UE1 402 and network node 404, where UE1 402 is receiving a DL transmission from network node 404 and UE1 402 is sending an UL transmission to network node 404. Figure 4C In example 420 , FD is enabled for both UE1 402 and network node 404 .
[0080] In some examples, to implement one or more of the above-described FD communication schemes, the network node 404 and the UE 402 may operate using non-overlapping UL / DL subbands, while in some other examples, the network node 404 and the UE 402 may operate using partially or completely overlapping UL / DL resources. Figure 5 Various aspects of non-overlapping UL / DL subbands and partially or fully overlapping UL / DL resources are described in more detail.
[0081] As mentioned above, Figures 4A-4C is provided as one or more examples. Other examples may be related to Figures 4A-4C The examples described are different.
[0082] Figure 5 are diagrams illustrating examples 500 , 505 , and 510 of FD communications in a wireless network according to the present disclosure.
[0083] like Figure 5 As shown, examples 500 and 505 illustrate examples of in-band FD (IBFD) communications. In IBFD, UE 120 can send uplink communications to network node 110 and receive downlink communications from network node 110 on the same time and frequency resources. As shown in example 500, in the first example of IBFD, the time and frequency resources used for uplink communications can completely overlap with the time and frequency resources used for downlink communications. As shown in example 505, in the second example of IBFD, the time and frequency resources used for uplink communications can partially overlap with the time and frequency resources used for downlink communications.
[0084] like Figure 5 As further shown in FIG, example 510 illustrates an example of SBFD communication, which may also be referred to as "sub-band frequency division duplexing (SBFDD)" or "flexible duplexing." In SBFD, UE 120 may send uplink communications to network node 110 and receive downlink communications from network node 110 at the same time, but on different frequency resources. For example, the different frequency resources may be sub-bands of a frequency band, such as a time division duplex band. In this case, the frequency resources used for downlink communications may be separated from the frequency resources used for uplink communications in the frequency domain by a guard band.
[0085] In examples where the network node 110 and / or the UE 120 operate in FD mode, such as in an SBFD scenario, the network node 110 may need CSI (e.g., MCS, rank indicator (RI), precoding matrix indicator (PMI), or similar information) for different subbands. More specifically, referring to example 510, the network node 110 may need CSI for both DL subbands and UL subbands. In such an example, the UE 120 may be configured with a CSI reporting configuration (sometimes referred to as a CSI reporting setting) that indicates resources and other information for performing measurements associated with the CSI reports to be sent by the UE 120 to the network node 110. Below, in conjunction with Figure 6 Aspects of the CSI reporting setup are described in more detail.
[0086] As mentioned above, Figure 5 are provided as examples. Other examples can be found in the Figure 5 The examples described are different.
[0087] Figure 6 is a diagram illustrating an example 600 of a CSI reporting setup according to the present disclosure.
[0088] A CSI reporting configuration may be used by network node 110 to configure a UE 120 with a number of resources and / or certain parameters for performing certain measurements associated with the channel between network node 110 and UE 120, and the parameters indicating how the measurements are to be reported by UE 120 to network node 110. More specifically, a CSI-RS may carry information used for downlink channel estimation (e.g., downlink CSI acquisition), which may be used for scheduling, link adaptation, or beam management, among other examples. Network node 110 may configure a CSI-RS set for UE 120, and UE 120 may measure the configured CSI-RS set. For example, network node 110 may use a CSI reporting configuration (e.g., a CSI reporting configuration) to configure a set of CSI-RS resources. The CSI reporting configuration may indicate the resources and / or parameters associated with a CSI report to be sent by UE 120 to network node 110. For example, as shown in example 600, the CSI report setting may indicate a non-zero power (NZP) CSI-RS resource configuration for channel measurement (sometimes referred to herein as a CMR configuration), a zero power (ZP) CSI-RS resource configuration for interference management (sometimes referred to herein as an IMR configuration), an NZP CSI-RS resource configuration for interference management, a codebook configuration, and / or a reporting configuration type, among other information.
[0089] The codebook configuration may indicate the codebook type associated with the CSI report, such as one of the following: a type I, single-panel codebook (sometimes referred to as type I-SinglePanel); a type I, multi-panel codebook (sometimes referred to as type I-MultiPanel); or a type II codebook (sometimes referred to as type II). The codebook configuration may also indicate an RI restriction (sometimes referred to as RI restriction). In some examples, the codebook configuration may indicate an antenna array configuration, such as (N1, N2) and the corresponding RI restriction for a single-panel configuration, and / or (Ng, N1, N2) and the corresponding RI restriction for a multi-panel configuration. The reporting configuration type may indicate the periodicity with which the UE 120 transmits the CSI report, for example, whether the CSI report is a periodic report, a semi-persistent report, or an aperiodic report.
[0090] The CMR configuration may indicate resources associated with UE 120 performing channel measurements using NZP CSI-RS resources (e.g., resources in which network node 110 transmits CSI-RS to UE 120). More specifically, the CMR configuration may indicate a set of NZP CMR resources (sometimes referred to herein as a CSI-RS resource set) to be used for performing channel measurements. For example, in example 600, the CMR configuration indicates that NZP CMR resource set n should be used for performing channel measurements. The CSI-RS resource set may include one or more NZP CMR resources (sometimes referred to herein as CSI-RS resources), such as NZP CMR resource a1 and NZP CMR resource a2 in example 600.
[0091] The IMR configuration may indicate ZP resources associated with UE 120 for performing interference measurements (e.g., resources in which network node 110 does not transmit CSI-RS to UE 120). More specifically, the IMR configuration may indicate a set of CSI-IM resources to be used for performing interference measurements. For example, in example 600, the IMR configuration indicates that a CSI-IM resource set m should be used for performing interference measurements. The CSI-IM resource set may include one or more CSI-IM resources, such as CSI-IM resource b1 and CSI-IM resource b2 in example 600.
[0092] The NZP CSI-RS resource configuration for interference measurement may indicate NZP resources associated with UE 120 performing NZP interference measurement (e.g., interference measurement based at least in part on a CSI-RS transmitted by network node 110 to UE 120). More specifically, the NZP CSI-RS resource configuration for interference measurement may indicate a set of NZP IMR resources to be used for performing NZP interference measurement. For example, in example 600, the NZP CSI-RS resource configuration for interference measurement indicates that NZP IMR resource set k should be used for performing NZP interference measurement. The NZP IMR resource set may include one or more NZP IMR resources, such as NZP IMR resource c1 and NZP IMR resource c2 in example 600.
[0093] The CSI report setting may associate each CSI-RS resource with a corresponding CSI-IM resource. More specifically, each CSI-RS resource may be associated with a corresponding CSI-IM resource on a resource-by-resource basis by ordering the CSI-RS resources and CSI-IM resources in the corresponding resource set. In this regard, the number of CSI-RS resources indicated by the CSI report setting may be equal to the number of CSI-IM resources indicated by the CSI report setting. Furthermore, the CSI-RS resource and the associated CSI-IM resource may occur in the same time slot. Thus, in example 600, NZP CMR resource a1 may occur in the same time slot as CSI-IM resource b1, NZP CMR resource a2 may occur in the same time slot as CSI-IM resource b2, and so on.
[0094] Based at least in part on the measurements of the CSI-RS resources and the CSI-IM resources, the UE 120 may perform channel estimation and may report channel estimation parameters such as CQI, PMI, CSI-RS resource indicator (CRI), layer indicator (LI), RI, or RSRP, among other examples, to the network node 110 (e.g., in a CSI report). The network node 110 may use the CSI report to select transmission parameters for downlink communication to the UE 120, such as the number of transmission layers (e.g., rank), a precoding matrix (e.g., a precoder), an MCS, or a refined downlink beam (e.g., using a beam refinement process or a beam management process), among other examples.
[0095] In some examples, network node 110 may need CSI for multiple subbands, such as when network node 110 operates in SBFD mode. For example, in an aspect where network node 110 communicates with UE 120 using an HD slot (such as a downlink slot, sometimes referred to as a "D" slot in time-domain resource allocation), followed by an SBFD slot (e.g., a D slot where the middle subband serves as an UL subband and / or a guard band (GB), resulting in two separate DL subbands separated by the UL subband and / or GB), network node 110 may need CSI for both DL subbands in the HD slot and the SBFD slot. In such an example, the downlink channel may be relatively static between the two slots because the slots are relatively close in time. However, due to the presence of uplink signals within the SBFD slot rather than the HD slot, the interference associated with the HD slot may differ from the interference associated with the SBFD slot. In other words, the downlink channel may experience inter-cell interference in HD time slots, and due to the presence of uplink and downlink subbands in SBFD time slots, the downlink channel may also experience inter-cell interference and CLI in SBFD time slots. In this regard, to provide accurate CSI, the UE may need to provide channel measurements associated with downlink subbands in HD time slots and / or SBFD time slots, interference measurements in HD time slots (e.g., to capture the impact of inter-cell interference), and interference measurements in SBFD time slots (e.g., to capture the impact of inter-cell interference and CLI). This may require high overhead (and therefore high power, network, and computational resource consumption) because a first CMR configuration and an associated first IMR configuration may need to be configured for HD time slots, and a second CMR configuration and an associated second IMR configuration may need to be configured for SBFD time slots.
[0096] Some techniques and apparatus described herein enable decoupling interference measurement slots and channel measurement slots for CSI reporting to reduce overhead associated with CSI reporting for SBFD slots and / or reduce power, network, and / or computational resource consumption associated with redundant channel measurements. In some aspects, a UE 120 may receive a CSI reporting configuration that indicates a CSI-RS resource in a first slot (e.g., an HD slot) and one or more associated CSI-IM resources, such as a CSI-IM resource in a second slot (e.g., an SBFD slot) that is different from the first slot. Accordingly, the UE 120 may perform channel measurements in the first slot using the CSI-RS resource, perform interference measurements in the second slot using the CSI-IM resource, and transmit a CSI report based at least in part on the channel measurement (e.g., the HD slot channel measurement) and the interference measurement (e.g., the SBFD slot interference measurement). By decoupling the CSI-RS resource from the CSI-IM resource (e.g., by enabling the resources to be provided in different time slots), overhead can be reduced because a single CSI-RS resource can be associated with CSI-IM resources in multiple time slots, thereby eliminating redundant channel measurements and / or reducing power, network, and / or computational resource consumption that might otherwise be used to provide accurate CSI for multiple HD and FD time slot formats.
[0097] As mentioned above, Figure 6 are provided as examples. Other examples can be found in the Figure 6 The examples described are different.
[0098] Figures 7A-7B 1 is a diagram illustrating an example of decoupling an interference measurement slot and a channel measurement slot for CSI reporting according to the present disclosure. Figures 7A-7B The described examples may be associated with communications between a network node 110 and a UE 120. In some aspects, the network node 110 and the UE 120 may be included in a wireless network, such as the wireless network 100. The network node 110 and the UE 120 may communicate via a wireless access link, which may include an uplink and a downlink.
[0099] like Figure 7AAs shown in example 700 in FIG. 1 , in some aspects, measurement resource overhead (e.g., overhead associated with CSI-RS resources and / or CSI-IM resources) may be reduced by configuring CSI-RS resources in one time slot (e.g., an HD time slot and / or a downlink time slot) associated with CSI-IM resources in multiple time slots (e.g., HD time slots and SBFD time slots). More specifically, in example 700, network node 110 and UE 120 may communicate using a frame structure that includes an HD time slot 705 (e.g., a downlink time slot or D time slot) and an SBFD time slot 710. In some aspects, an SBFD time slot may be a time slot that is semi-statically configured as a D time slot through time domain resource allocation, but is configured such that the subband of SBFD time slot 710 may be used for uplink communications. More specifically, SBFD time slot 710 may be associated with two downlink subbands (e.g., a first downlink subband 715 and a second downlink subband 720) and an uplink subband 725. In some aspects, the uplink sub-band 725 may be separated from the first downlink sub-band 715 and / or the second downlink sub-band 720 via a GB.
[0100] In some aspects, UE 120 may be configured with measurement resources (e.g., one or more CMRs and / or one or more IMRs), such as via a Figure 610. A CSI reporting setup similar to the CSI reporting setup described above may be used. In some aspects, to reduce measurement resource overhead, a CSI-RS in a first slot may be associated with multiple IMRs, such as an IMR in the first slot and an IMR in another slot. More specifically, in example 700, UE 120 may be configured with a CSI-RS resource 730 in an HD slot 705, which may be used by UE 120 to perform channel measurements in the HD slot 705. The CSI reporting setup may associate the CSI-RS resource 730 with multiple IMRs, such as a first CSI-IM resource 735 in an SBFD slot 710 and a second CSI-IM resource 740 in an HD slot 705. In this regard, the CSI-RS resource 730 may be decoupled from at least one IMR (e.g., the CSI-RS resource 730 may be included in a different slot from the associated IMR). More specifically, in example 700, CSI-RS resource 730 is decoupled from first CSI-IM resource 735, meaning that CSI-RS resource 730 is included in a first slot (e.g., HD slot 705) and first CSI-IM resource 735 is included in a second slot (e.g., SBFD slot 710) that is different from the first slot. By configuring CSI reporting that decouples one or more CMRs from one or more IMRs, measurement resources can be reduced compared to examples where CMRs must be coupled to corresponding IMRs. More specifically, in example 700, CMR resources are not provided in SBFD slot 710, thereby freeing up resources in SBFD slot 710 that would otherwise be required for CMRs and thereby increasing network capacity.
[0101] In some aspects, a CSI reporting setup may associate multiple IMRs with a CMR. For example, in example 700, the CSI reporting setup may associate both a first CSI-IM resource 735 (sometimes referred to herein as CSI-IM-SBFD) in a SBFD time slot 710 and a second CSI-IM resource 740 (sometimes referred to herein as CSI-IM-HD) in a HD time slot 705 with a CSI-RS resource 730. In such an aspect, the UE 120 may perform a channel measurement using the CSI-RS resource 730, may perform a first interference measurement using the first CSI-IM resource 735 (e.g., CSI-IM-SBFD), and may perform a second interference measurement using the second CSI-IM resource 740 (e.g., CSI-IM-HD). Additionally or alternatively, the network node 110 may implicitly or explicitly indicate to the UE 120 which interference measurement should be used for a given CSI report, which is described below in conjunction with Figure 8 Figure numerals 830 and 835 in are described in more detail.
[0102] Additionally, UE 120 may maintain two interference measurements corresponding to the two CSI-IM resources 735, 740. For example, UE 120 may maintain a first average interference measurement associated with the SBFD time slot (e.g., an average interference measurement calculated using measurements performed using the first CSI-IM resource 735), and / or UE 120 may maintain a second average interference measurement associated with the HD time slot (e.g., an average interference measurement calculated using measurements performed using the second CSI-IM resource 740). In some aspects, a CSI report may include a selected one of the first average interference measurement or the second average interference measurement based at least in part on an implicit or explicit indication from network node 110, a configured periodicity of CSI-IM-SBFD and / or CSI-IM-HD reporting, or the like, as described below in conjunction with Figure 8 Figure numerals 830 and 835 in are described in more detail.
[0103] Figure 7B Various examples are shown of how a CSI reporting setup can associate a CSI-RS resource with multiple CSI-IM resources, including at least one decoupled CSI-IM resource (e.g., a CSI-IM resource in a different time slot than the CSI-RS resource). As shown in example 745, in some aspects, a CSI reporting setup and / or CSI report can be associated with a CMR configuration and an IMR configuration, where the IMR configuration indicates a set of CSI-IM resources associated with a set of CSI-RS resources indicated by the CMR configuration. The CMR configuration can indicate a set of CSI-RS resources including one or more CSI-RS resources (e.g., CSI-RS resource 730). The IMR configuration can indicate a set of CSI-IM resources including two CSI-IM resources (e.g., a first CSI-IM resource 735 and a second CSI-IM resource 740) for each of the one or more CSI-RS resources indicated by the CMR configuration. In other words, in this example, the CSI-IM resource set may include twice the number of resources included in the CSI-RS resource set, such that each CSI-RS resource is associated with two CSI-IM resources in the CSI-IM resource set. In some aspects, two CSI-IM resources (e.g., first CSI-IM resource 735 and second CSI-IM resource 740) associated with a single CSI-RS resource (e.g., CSI-RS resource 730) may be configured with different periodicities and / or different offsets, such that one of the CSI-IM resources is used for interference measurement in an SBFD time slot (e.g., SBFD time slot 710) and the other of the CSI-IM resources is used for interference measurement in an HD time slot (e.g., HD time slot 705).
[0104] In some other aspects, as shown in example 750, a CSI report configuration and / or a CSI report can be associated with a CMR configuration and an IMR configuration indicating two CSI-IM resource sets. In such aspects, a CSI-RS resource set can be associated with two CSI-IM resource sets. Thus, a CSI-RS resource included in the CSI-RS resource set (e.g., CSI-RS resource 730) can be associated with a first CSI-IM resource (e.g., first CSI-IM resource 735) included in a first CSI-IM resource set of the two CSI-IM resource sets and a second CSI-IM resource (e.g., second CSI-IM resource 740) included in a second CSI-IM resource set of the two CSI-IM resource sets.
[0105] In some other aspects, as shown in example 755, a CSI reporting setup and / or CSI report can be associated with one CMR configuration and two IMR configurations, where each IMR configuration indicates a corresponding CSI-IM resource set. In such aspects, a CSI-RS resource set can be associated with a first CSI-IM resource set associated with a first of the two IMR configurations, and a second CSI-IM resource set associated with a second of the two IMR configurations. Thus, a CSI-RS resource (e.g., CSI-RS resource 730) included in the CSI-RS resource set can be associated with a first CSI-IM resource (e.g., first CSI-IM resource 735) included in a first CSI-IM resource set indicated by a first IMR configuration of the two IMR configurations, and with a second CSI-IM resource (e.g., second CSI-IM resource 740) included in a second CSI-IM resource set indicated by a second IMR configuration of the two IMR configurations.
[0106] The following combination Figure 8 Aspects of configuring a UE 120 with multiple CSI-IM resources associated with a single CSI-RS resource (such as one of the CSI reporting settings described above in connection with examples 745, 750, and 755) and / or aspects of the UE 120 reporting CSI based at least in part on decoupled CMR and IMR (e.g., CMR and IMR located in different time slots) are described in further detail.
[0107] As mentioned above, Figures 7A-7B are provided as examples. Other examples can be found in the Figures 7A-7B The examples described are different.
[0108] Figure 88 is a diagram of an example 800 associated with decoupling interference measurement slots and channel measurement slots for CSI reporting according to the present disclosure. Figure 8 As shown, a network node 110 (e.g., a CU, DU, and / or RU) may communicate with a UE 120. In some aspects, the network node 110 and the UE 120 may be part of a wireless network (e.g., the wireless network 100). The network node 110 and the UE 120 may be in a Figure 8 The operations shown have previously established a wireless connection. In some aspects, the network node 110 and / or the UE 120 may be capable of operating in FD mode, such as described above in conjunction with Figures 4A-4C One or more of the FD modes described and / or by using the above in combination Figure 5 and 7A One or more of the described slot structures.
[0109] As indicated by reference numeral 805, the network node 110 may send configuration information, and the UE 120 may receive the configuration information. In some aspects, the UE 120 may receive the configuration information via one or more of RRC signaling, one or more MAC control elements (MAC-CEs), and / or downlink control information (DCI), among other examples. In some aspects, the configuration information may include an indication of one or more configuration parameters for selection by the UE 120 (e.g., known to the UE 120 and / or previously indicated by the network node 110 or other network device), and / or explicit configuration information for the UE 120 to use to configure the UE 120, among other examples.
[0110] In some aspects, the configuration information may indicate a first time slot (in Figure 8 810) and a CSI-RS resource in a second time slot different from the first time slot (shown in FIG. Figure 8 In some aspects, the first time slot may be associated with an HD time slot and the second time slot may be associated with an SBFD time slot. For example, the CSI-RS resource may correspond to the above in conjunction with Figure 7A The CSI-RS resource 730 in the HD time slot 705 described above, and the first CSI-IM resource may correspond to the above combined Figure 7A In this regard, the configuration information may also indicate a second CSI-IM resource associated with the first time slot 810. In some aspects, the second CSI-IM resource may correspond to the first CSI-IM resource described above in conjunction with Figure 7A A second CSI-IM resource 740 in the HD time slot 705 is depicted.
[0111] Combined with the above Figure 7B In a manner similar to that described in detail, in some aspects, configuration information may associate a CSI-RS resource with two CSI-IM resources, such that the CSI-RS resource is associated with at least one decoupled CSI-IM resource (e.g., such that the CSI-RS resource is associated with at least one CSI-IM resource located in a time slot different from the time slot including the CSI-RS resource). More specifically, in a manner similar to that described above in conjunction with Example 745, the configuration information may include a CMR configuration associated with a CSI-RS resource set including the CSI-RS resource and an IMR configuration associated with a CSI-IM resource set including a first CSI-IM resource and a second CSI-IM resource. In such an aspect, the configuration information may indicate that the first CSI-IM resource and the second CSI-IM resource are associated with the CSI-RS resource. Additionally or alternatively, the first CSI-IM resource may be associated with a first periodicity and / or a first offset, and the second CSI-IM resource may be associated with a second periodicity and / or a second offset different from the first periodicity and / or first offset. For example, a first periodicity and / or a first offset may be associated with an SBFD time slot, and a second periodicity and / or a second offset may be associated with an HD time slot. In other words, the CSI-IM resource set may include twice the number of resources included in the CSI-RS resource set, such that each CSI-RS resource is associated with two CSI-IM resources in the CSI-IM resource set, wherein the two CSI-IM resources are configured with different periodicities and / or offsets, such that one CSI-IM resource is used for interference measurement in an HD time slot and one CSI-IM resource is used for interference measurement in an SBFD time slot.
[0112] In some other aspects, as described above in conjunction with example 750, the configuration information may include a CMR configuration associated with a CSI-RS resource set including a CSI-RS resource, and an IMR configuration associated with a first CSI-IM resource set including a first CSI-IM resource and a second CSI-IM resource set including a second CSI-IM resource. In such aspects, the configuration information may indicate that the first CSI-IM resource set and the second CSI-IM resource set are associated with the CSI-RS resource set.
[0113] In some other aspects, as described above in connection with Example 755, the configuration information may include a CMR configuration associated with a CSI-RS resource set including a CSI-RS resource, a first IMR configuration associated with a first CSI-IM resource set including a first CSI-IM resource, and a second IMR configuration associated with a second CSI-IM resource set including a second CSI-IM resource. In such aspects, the configuration information may indicate that the first IMR configuration and the second IMR configuration are associated with the CMR configuration.
[0114] 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.
[0115] As indicated by reference numeral 820, UE 120 may perform channel measurement in first time slot 810 using the CSI-RS resource. Furthermore, as indicated by reference numeral 825, UE 120 may perform a first interference measurement in second time slot 815 using the first CSI-IM resource. In aspects where the configuration information configures a second CSI-IM resource in first time slot 810, UE 120 may also perform a second interference measurement in first time slot 810 using the second CSI-IM resource. Furthermore, in aspects where UE 120 performs the first interference measurement in second time slot 815 (e.g., an SBFD time slot) using the first CSI-IM resource and performs the second interference measurement in first time slot 810 (e.g., an HD time slot) using the second CSI-IM resource, UE 120 may maintain two interference measurement estimates, such as a first average interference measurement associated with IMRs across multiple SBFD time slots and a second average interference measurement associated with IMRs across multiple HD time slots. In other words, in some aspects, the UE 120 may be configured to maintain a first average interference measurement associated with the first CSI-IM resource (and thus the second time slot 815, e.g., an SBFD time slot) and a second average interference measurement associated with the second CSI-IM resource (and thus the first time slot 810, e.g., an HD time slot).
[0116] As indicated by reference numeral 830, in aspects where the UE 120 is configured with both a first CSI-IM resource (e.g., an aspect in which the UE 120 is configured to perform interference measurements in the second time slot 815 (such as an SBFD time slot)) and a second CSI-IM resource (e.g., an aspect in which the UE 120 is configured to perform interference measurements in the first time slot 810 (such as an HD time slot)), the network node 110 may indicate whether a first interference measurement associated with the first CSI-IM resource (e.g., an SBFD time slot) (e.g., an interference measurement associated with the second time slot 815) or a second interference measurement associated with the second CSI-IM resource (e.g., an interference measurement associated with the first time slot 810) is to be used for a CSI report sent by the UE 120 to the network node 110. In some aspects, the indication of whether the first interference measurement or the second interference measurement is to be used for the CSI report may be explicit or implicit.
[0117] For example, the network node 110 may send, and the UE 120 may receive, an explicit indication of whether the first interference measurement or the second interference measurement is to be used for CSI reporting. In some aspects, the network node 110 may send, and the UE 120 may receive, an indication of whether the first interference measurement or the second interference measurement is to be used for CSI reporting via a dynamic message (e.g., DCI and / or MAC-CE) that triggers one of an aperiodic CSI report or a semi-persistent CSI report.
[0118] In some other aspects, the indication of whether the first interference measurement or the second interference measurement is to be used for the CSI report may be based at least in part on whether the UE 120 is configured with an FD restriction for the interference measurement parameter (sometimes referred to as FD-RestrictionForInterferenceMeasurment). In other words, the UE 120 may determine whether the first interference measurement or the second interference measurement is to be used for the CSI report based at least in part on whether the configuration information described above in conjunction with reference numeral 805 configures an FD restriction for the interference measurement parameter. For example, the UE 120 may be configured to maintain one interference measurement (e.g., an interference measurement associated with an HD slot, such as the second interference measurement associated with the first slot 810) as a default behavior. However, if an FD restriction for the interference measurement parameter is included in the CSI reporting configuration (e.g., if the FD restriction for the interference measurement parameter is configured via the configuration information described above in conjunction with reference numeral 805), the UE 120 may not perform according to the default behavior and instead determine that the CSI report is to be linked to an IMR in an FD slot (e.g., the first CSI-IM resource in the second slot 815).
[0119] As indicated by reference numeral 835, the UE 120 may transmit a CSI report, and the network node 110 may receive the CSI report. In some aspects, the CSI report may be based at least in part on a channel measurement using a CSI-RS resource in the first time slot 810 and a first interference measurement using a first CSI-IM resource in the second time slot 815. In this manner, the CSI report may be based at least in part on decoupled CMR and IMR in the time domain (e.g., CMR and IMR in different time slots). In some aspects, such as aspects where the UE 120 is configured to provide semi-persistent or periodic CSI reporting, the UE 120 may use a first interference measurement (e.g., an interference measurement associated with the second time slot 815, which may be an SBFD time slot) for some CSI reports in the semi-persistent / periodic CSI report, and may use a second interference measurement (e.g., an interference measurement associated with the first time slot 810, which may be an HD time slot) for other CSI reports in the semi-persistent / periodic CSI report. In other words, the UE 120 may send, and the network node 110 may receive, a plurality of CSI reports, wherein a first subset of the plurality of CSI reports is based at least in part on interference measurements associated with a first CSI-IM resource, and wherein a second subset of the plurality of CSI reports is based at least in part on interference measurements associated with a second CSI-IM resource.
[0120] For example, UE 120 may alternate between two interference measurement estimates for semi-persistent / periodic CSI reporting. More specifically, sending multiple CSI reports may include alternating between sending CSI reports associated with a first subset of CSI reports (e.g., CSI reports associated with interference measurements performed in the second time slot 815) and sending CSI reports associated with a second subset of CSI reports (e.g., CSI reports associated with interference measurements performed in the first time slot 810). In some other aspects, sending multiple CSI reports may include sending CSI reports associated with the first subset of CSI reports according to a first configured periodicity and / or sending CSI reports associated with the second subset of CSI reports according to a second configured periodicity. More specifically, the configuration information described above in conjunction with reference numeral 805 may indicate a configured periodicity associated with SBFD CSI reporting and / or HD CSI reporting, and thus UE 120 may alternate between reports associated with the first CSI-IM resource and the second CSI-IM resource accordingly. For example, for semi-persistent / periodic CSI reporting, the configuration information may indicate that the UE 120 is to report HD CSI (e.g., CSI associated with the second CSI-IM resource and / or the second interference measurement) every 2X time slots, and that the UE 120 is to report SBFD CSI (e.g., CSI associated with the first CSI-IM resource and / or the first interference measurement) every X time slots.
[0121] Based at least in part on the network node 110 and / or UE 120 decoupling the interference measurement slots and the channel measurement slots for CSI reporting, the network node 110 and / or UE 120 may save computational, power, network, and / or communication resources that may be consumed when configuring multiple coupled CMRs and IMRs across multiple slots. For example, based at least in part on the network node 110 and / or UE 120 decoupling the interference measurement slots and the channel measurement slots for CSI reporting, overhead may be reduced and / or redundant channel measurements may be eliminated, thereby resulting in a reduction in power, network, and / or computational resource consumption for CSI reporting.
[0122] As mentioned above, Figure 8 are provided as examples. Other examples can be found in the Figure 8 The examples described are different.
[0123] Figure 9 is a diagram illustrating an example process 900, performed, for example, by a UE, in accordance with the present disclosure. Example process 900 is an example in which a UE (eg, UE 120) performs operations associated with decoupling interference measurement slots and channel measurement slots for CSI reporting.
[0124] like Figure 9As shown, in some aspects, process 900 may include receiving configuration information indicating a CSI-RS resource in a first time slot and a first CSI-IM resource in a second time slot different from the first time slot (block 910). For example, a UE (e.g., using Figure 11 The receiving component 1102 and / or the communication manager 1106 depicted in FIG may receive configuration information indicating a CSI-RS resource in a first time slot and a first CSI-IM resource in a second time slot different from the first time slot, as described above.
[0125] like Figure 9 As further shown in FIG, in some aspects, process 900 may include performing channel measurements in a first time slot using CSI-RS resources (block 920). For example, a UE (e.g., using Figure 11 The communication manager 1106 depicted in FIG. 100 may perform channel measurements in the first time slot using the CSI-RS resources, as described above.
[0126] like Figure 9 As further shown in FIG. 1 , in some aspects, process 900 may include performing a first interference measurement in a second time slot using a first CSI-IM resource (block 930). For example, a UE (e.g., using Figure 11 The communication manager 1106 depicted in FIG. 104 may perform a first interference measurement in the second time slot using the first CSI-IM resource, as described above.
[0127] like Figure 9 As further shown in FIG. 1 , in some aspects, process 900 may include sending a CSI report based at least in part on the channel measurement and the first interference measurement (block 940). For example, a UE (e.g., using Figure 11 The transmitting component 1104 and / or the communication manager 1106 depicted in FIG may transmit the CSI report based at least in part on the channel measurement and the first interference measurement, as described above.
[0128] Process 900 may include additional aspects, such as any single aspect or any combination of aspects described below and / or in conjunction with one or more other processes described elsewhere herein.
[0129] In a first aspect, the first time slot is associated with a half-duplex time slot and the second time slot is associated with a sub-band full-duplex time slot.
[0130] In the second aspect, alone or in combination with the first aspect, the configuration information further indicates a second CSI-IM resource associated with the first time slot.
[0131] In a third aspect, alone or in combination with one or more of the first and second aspects, process 900 includes receiving an indication of whether a first interference measurement or a second interference measurement associated with a second CSI-IM resource is to be used for CSI reporting.
[0132] In a fourth aspect, alone or in combination with one or more of the first to third aspects, an indication of whether the first interference measurement or the second interference measurement is to be used for CSI reporting is received via a dynamic message triggering one of aperiodic CSI reporting or semi-persistent CSI reporting.
[0133] In a fifth aspect, alone or in combination with one or more of the first to fourth aspects, process 900 includes sending a plurality of CSI reports, wherein a first subset of the plurality of CSI reports is based at least in part on interference measurements associated with a first CSI-IM resource, and wherein a second subset of the plurality of CSI reports is based at least in part on interference measurements associated with a second CSI-IM resource.
[0134] In a sixth aspect, alone or in combination with one or more of the first to fifth aspects, sending the plurality of CSI reports comprises alternating between sending CSI reports associated with a first subset of CSI reports and sending CSI reports associated with a second subset of CSI reports.
[0135] In the seventh aspect, alone or in combination with one or more of the first to sixth aspects, sending multiple CSI reports includes at least one of: sending CSI reports associated with a first subset of CSI reports according to a periodicity of a first configuration, or sending CSI reports associated with a second subset of CSI reports according to a periodicity of a second configuration.
[0136] In an eighth aspect, alone or in combination with one or more of the first to seventh aspects, process 900 includes determining whether a first interference measurement or a second interference measurement associated with a second CSI-IM resource is to be used for CSI reporting based at least in part on whether the configuration information configures a full-duplex restriction for the interference measurement parameter.
[0137] In a ninth aspect, alone or in combination with one or more of the first to eighth aspects, process 900 includes maintaining a first average interference measurement associated with a first CSI-IM resource and a second average interference measurement associated with a second CSI-IM resource.
[0138] In the tenth aspect, alone or in combination with one or more of the first to ninth aspects, the configuration information includes a channel measurement resource configuration and an interference measurement resource configuration, the channel measurement resource configuration is associated with a CSI-RS resource set including a CSI-RS resource, the interference measurement resource configuration is associated with a CSI-IM resource set, the CSI-IM resource set includes a first CSI-IM resource and a second CSI-IM resource associated with a first time slot, and the configuration information indicates that the first CSI-IM resource and the second CSI-IM resource are associated with the CSI-RS resource.
[0139] In the eleventh aspect, alone or in combination with one or more of the first to tenth aspects, the first CSI-IM resource is associated with at least one of a first period and a first offset, the second CSI-IM resource is associated with at least one of a second period and a second offset, and the first period is different from the second period and / or the first offset is different from the second offset.
[0140] In the twelfth aspect, alone or in combination with one or more of the first to eleventh aspects, at least one of the first period or the first offset is associated with a sub-band full-duplex time slot, and at least one of the second period or the second offset is associated with a half-duplex time slot.
[0141] In the thirteenth aspect, alone or in combination with one or more of the first to twelfth aspects, the configuration information includes a channel measurement resource configuration and an interference measurement resource configuration, the channel measurement resource configuration is associated with a CSI-RS resource set including a CSI-RS resource, the interference measurement resource configuration is associated with a first CSI-IM resource set including a first CSI-IM resource and a second CSI-IM resource set including a second CSI-IM resource, wherein the second CSI-IM resource is associated with a first time slot, and the configuration information indicates that the first CSI-IM resource set and the second CSI-IM resource set are associated with the CSI-RS resource set.
[0142] In the fourteenth aspect, alone or in combination with one or more of the first to thirteenth aspects, the configuration information includes a CMR configuration associated with a CSI-RS resource set including a CSI-RS resource, a first IMR configuration associated with a first CSI-IM resource set including a first CSI-IM resource, and a second IMR configuration associated with a second CSI-IM resource set including a second CSI-IM resource, wherein the second CSI-IM resource is associated with a first time slot, and the configuration information indicates that the first IMR configuration and the second IMR configuration are associated with the CMR configuration.
[0143] although Figure 9 Example blocks of process 900 are shown, but in some aspects process 900 may include Figure 9 The blocks may be additional blocks, fewer blocks, different blocks, or differently arranged blocks than those depicted in process 900. Additionally or alternatively, two or more blocks of the blocks of process 900 may be executed in parallel.
[0144] Figure 10 is a diagram illustrating an example process 1000, performed, for example, by a network node, in accordance with the present disclosure. Example process 1000 is an example of a network node (eg, network node 110) performing operations associated with decoupling interference measurement slots and channel measurement slots for CSI reporting.
[0145] like Figure 10 As shown, in some aspects, process 1000 may include sending configuration information to a UE indicating a CSI-RS resource in a first time slot and a first CSI-IM resource in a second time slot different from the first time slot (block 1010). For example, a network node (e.g., using Figure 12 The transmitting component 1204 and / or the communication manager 1206 depicted in FIG may transmit configuration information to the UE indicating a CSI-RS resource in a first time slot and a first CSI-IM resource in a second time slot different from the first time slot, as described above.
[0146] like Figure 10 As further shown in FIG. 1 , in some aspects, process 1000 may include receiving a CSI report from a UE based at least in part on a channel measurement associated with a CSI-RS resource and a first interference measurement associated with a first CSI-IM resource (block 1020). For example, a network node (e.g., using Figure 12 The receiving component 1202 and / or the communication manager 1206 depicted in FIG may receive a CSI report from the UE, the CSI report being based at least in part on a channel measurement associated with the CSI-RS resource and a first interference measurement associated with the first CSI-IM resource, as described above.
[0147] Process 1000 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.
[0148] In a first aspect, the first time slot is associated with a half-duplex time slot and the second time slot is associated with a sub-band full-duplex time slot.
[0149] In the second aspect, alone or in combination with the first aspect, the configuration information further indicates a second CSI-IM resource associated with the first time slot.
[0150] In a third aspect, alone or in combination with one or more of the first and second aspects, process 1000 includes sending an indication to a UE as to whether a first interference measurement or a second interference measurement associated with a second CSI-IM resource is to be used for CSI reporting.
[0151] In a fourth aspect, alone or in combination with one or more of the first to third aspects, an indication as to whether the first interference measurement or the second interference measurement is to be used for CSI reporting is sent via a dynamic message that triggers one of aperiodic CSI reporting or semi-persistent CSI reporting.
[0152] In a fifth aspect, alone or in combination with one or more of the first to fourth aspects, process 1000 comprises receiving a plurality of CSI reports from a UE, wherein a first subset of the plurality of CSI reports is based at least in part on interference measurements associated with a first CSI-IM resource, and wherein a second subset of the plurality of CSI reports is based at least in part on interference measurements associated with a second CSI-IM resource.
[0153] In a sixth aspect, alone or in combination with one or more of the first to fifth aspects, receiving the plurality of CSI reports comprises alternating between receiving CSI reports associated with a first subset of CSI reports and receiving CSI reports associated with a second subset of CSI reports.
[0154] In the seventh aspect, alone or in combination with one or more of the first to sixth aspects, receiving multiple CSI reports includes at least one of: receiving CSI reports associated with a first subset of CSI reports from the UE according to a first configured periodicity, or receiving CSI reports associated with a second subset of CSI reports from the UE according to a second configured periodicity.
[0155] In the eighth aspect, alone or in combination with one or more of the first to seventh aspects, process 1000 includes: indicating to the UE whether the first interference measurement or the second interference measurement associated with the second CSI-IM resource is to be used for CSI reporting based at least in part on whether the configuration information configures full-duplex restrictions for the interference measurement parameter.
[0156] In the ninth aspect, which is alone or in combination with one or more of the first to eighth aspects, the configuration information includes a channel measurement resource configuration and an interference measurement resource configuration, the channel measurement resource configuration is associated with a CSI-RS resource set including a CSI-RS resource, the interference measurement resource configuration is associated with a CSI-IM resource set, the CSI-IM resource set includes a first CSI-IM resource and a second CSI-IM resource associated with a first time slot, and the configuration information indicates that the first CSI-IM resource and the second CSI-IM resource are associated with the CSI-RS resource.
[0157] In the tenth aspect, alone or in combination with one or more of the first to ninth aspects, the first CSI-IM resource is associated with at least one of a first period and a first offset, the second CSI-IM resource is associated with at least one of a second period and a second offset, and the first period is different from the second period and / or the first offset is different from the second offset.
[0158] In the eleventh aspect, alone or in combination with one or more of the first to tenth aspects, at least one of the first period or the first offset is associated with a sub-band full-duplex time slot, and at least one of the second period or the second offset is associated with a half-duplex time slot.
[0159] In the twelfth aspect, alone or in combination with one or more of the first to eleventh aspects, the configuration information includes a channel measurement resource configuration and an interference measurement resource configuration, the channel measurement resource configuration is associated with a CSI-RS resource set including a CSI-RS resource, the interference measurement resource configuration is associated with a first CSI-IM resource set including a first CSI-IM resource and a second CSI-IM resource set including a second CSI-IM resource, wherein the second CSI-IM resource is associated with a first time slot, and the configuration information indicates that the first CSI-IM resource set and the second CSI-IM resource set are associated with the CSI-RS resource set.
[0160] In the thirteenth aspect, alone or in combination with one or more of the first to twelfth aspects, the configuration information includes a CMR configuration associated with a CSI-RS resource set including a CSI-RS resource, a first IMR configuration associated with a first CSI-IM resource set including a first CSI-IM resource, and a second IMR configuration associated with a second CSI-IM resource set including a second CSI-IM resource, wherein the second CSI-IM resource is associated with a first time slot, and the configuration information indicates that the first IMR configuration and the second IMR configuration are associated with the CMR configuration.
[0161] although Figure 10Example blocks of process 1000 are shown, but in some aspects, process 1000 may include Figure 10 1000. In some embodiments, the process 1000 may include additional blocks, fewer blocks, different blocks, or differently arranged blocks than those depicted in FIG. Additionally or alternatively, two or more blocks of the blocks of process 1000 may be executed in parallel.
[0162] Figure 11 1 is a diagram of an example apparatus 1100 for wireless communication according to the present disclosure. Apparatus 1100 may be a UE, or a UE may include apparatus 1100. In some aspects, apparatus 1100 includes a receiving component 1102, a sending component 1104, and / or a communication manager 1106, which may communicate with each other (e.g., via one or more buses and / or one or more other components). In some aspects, communication manager 1106 is a communication manager that is configured to communicate with one another. Figure 1 As shown, the apparatus 1100 can utilize a receiving component 1102 and a transmitting component 1104 to communicate with another apparatus 1108, such as a UE or a network node (eg, a CU, DU, RU, or base station).
[0163] In some aspects, the apparatus 1100 may be configured to perform the Figure 7A-8 Additionally or alternatively, the device 1100 may be configured to perform one or more of the processes described herein, such as Figure 9 In some aspects, the apparatus 1100 and / or Figure 11 One or more components shown in FIG may include a combination of Figure 2 Additionally or alternatively, one or more components of the UE 120 described herein. Figure 11 One or more of the components shown in the Figure 2 In one or more components described herein. Additionally or alternatively, one or more components in the component set may be at least partially implemented as software stored in a memory. For example, a component (or portion of a component) may be implemented as instructions or code stored in a non-transitory computer-readable medium and executable by a controller or processor to perform the function or operation of the component.
[0164] The receiving component 1102 may receive communications, such as reference signals, control information, data communications, or a combination thereof, from the device 1108. The receiving component 1102 may provide the received communications to one or more other components of the device 1100. In some aspects, the receiving component 1102 may perform signal processing (such as filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, demapping, equalization, interference cancellation, or decoding, among other examples) on the received communications and may provide the processed signals to one or more other components of the device 1100. In some aspects, the receiving component 1102 may include processing the received communications in conjunction with one or more other components of the device 1100. Figure 2 The UE 120 is depicted with one or more antennas, modems, demodulators, MIMO detectors, receive processors, controllers / processors, memories, or combinations thereof.
[0165] The transmitting component 1104 may transmit communications, such as reference signals, control information, data communications, or a combination thereof, to the apparatus 1108. In some aspects, one or more other components of the apparatus 1100 may generate communications and may provide the generated communications to the transmitting component 1104 for transmission to the apparatus 1108. In some aspects, the transmitting component 1104 may perform signal processing (e.g., filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding, among other examples) on the generated communications and may transmit the processed signals to the apparatus 1108. In some aspects, the transmitting component 1104 may include a combination of Figure 2 One or more antennas, modems, modulators, transmit MIMO processors, transmit processors, controllers / processors, memories, or combinations thereof of the depicted UE 120. In some aspects, the transmit component 1104 can be co-located with the receive component 1102 in a transceiver.
[0166] The communications manager 1106 can support the operation of the receiving component 1102 and / or the sending component 1104. For example, the communications manager 1106 can receive information associated with configuring the reception of communications by the receiving component 1102 and / or the sending of communications by the sending component 1104. Additionally or alternatively, the communications manager 1106 can generate and / or provide control information to the receiving component 1102 and / or the sending component 1104 to control the reception and / or sending of communications.
[0167] Receiving component 1102 may receive configuration information indicating a CSI-RS resource in a first time slot and a first CSI-IM resource in a second time slot different from the first time slot. Communication manager 1106 may perform a channel measurement in the first time slot using the CSI-RS resource. Communication manager 1106 may perform a first interference measurement in the second time slot using the first CSI-IM resource. Transmitting component 1104 may transmit a CSI report based at least in part on the channel measurement and the first interference measurement.
[0168] Receiving component 1102 can receive an indication of whether a first interference measurement or a second interference measurement associated with a second CSI-IM resource is to be used for CSI reporting.
[0169] The sending component 1104 can send multiple CSI reports, wherein a first subset of the multiple CSI reports is based at least in part on interference measurements associated with the first CSI-IM resource, and wherein a second subset of the multiple CSI reports is based at least in part on interference measurements associated with the second CSI-IM resource.
[0170] The communications manager 1106 may determine whether the first interference measurement or the second interference measurement associated with the second CSI-IM resource is to be used for the CSI reporting based at least in part on whether the configuration information configures a full-duplex restriction for the interference measurement parameter.
[0171] The communications manager 1106 may maintain a first average interference measurement associated with the first CSI-IM resource and a second average interference measurement associated with the second CSI-IM resource.
[0172] Figure 11 The number and arrangement of components shown in the figure are provided as examples. In practice, there may be Figure 11 The components shown in FIG may include additional components, fewer components, different components, or differently arranged components. Figure 11 Two or more components shown in may be implemented within a single component, or Figure 11 The single component shown in can be implemented as multiple distributed components. Additionally or alternatively, Figure 11 A set of (one or more) components shown in the executable is described as being comprised of Figure 11 One or more functions performed by another group of components shown in FIG.
[0173] Figure 12is a diagram of an example apparatus 1200 for wireless communication according to the present disclosure. Apparatus 1200 may be a network node, or a network node may include apparatus 1200. In some aspects, apparatus 1200 includes a receiving component 1202, a sending component 1204, and / or a communication manager 1206, which may communicate with each other (e.g., via one or more buses and / or one or more other components). In some aspects, communication manager 1206 is a communication manager that is configured to communicate with one another. Figure 1 As shown, the device 1200 can communicate with another device 1208, such as a UE or a network node (such as a CU, DU, RU, or base station), using a receiving component 1202 and a sending component 1204.
[0174] In some aspects, the apparatus 1200 may be configured to perform the Figure 7A-8 Additionally or alternatively, the apparatus 1200 may be configured to perform one or more of the processes described herein, such as Figure 10 The process 1000. In some aspects, Figure 12 The apparatus 1200 and / or one or more components shown may include a combination of Figure 2 Additionally or alternatively, one or more components of the network node 110 described herein. Figure 12 One or more of the components shown in the Figure 2 Alternatively or in addition, 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 a portion of a component) may be implemented as instructions or code stored in a non-transitory computer-readable medium and executable by a controller or processor to perform the functions or operations of the component.
[0175] The receiving component 1202 may receive communications, such as reference signals, control information, data communications, or a combination thereof, from the device 1208. The receiving component 1202 may provide the received communications to one or more other components of the device 1200. In some aspects, the receiving component 1202 may perform signal processing (such as filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, demapping, equalization, interference cancellation, or decoding, among other examples) on the received communications and may provide the processed signals to one or more other components of the device 1200. In some aspects, the receiving component 1202 may include processing the received communications in conjunction with one or more other components of the device 1200. Figure 2One or more antennas, modems, demodulators, MIMO detectors, receive processors, controllers / processors, memories, or combinations thereof of the network node 110 described herein. In some aspects, the receiving component 1202 and / or the transmitting component 1204 may include or be included in a network interface. The network interface may be configured to obtain and / or output signals for the apparatus 1200 via one or more communication links (e.g., a backhaul link, a midhaul link, and / or a fronthaul link).
[0176] The transmitting component 1204 may transmit communications, such as reference signals, control information, data communications, or a combination thereof, to the apparatus 1208. In some aspects, one or more other components of the apparatus 1200 may generate communications and may provide the generated communications to the transmitting component 1204 for transmission to the apparatus 1208. In some aspects, the transmitting component 1204 may perform signal processing (e.g., filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding, among other examples) on the generated communications and may transmit the processed signals to the apparatus 1208. In some aspects, the transmitting component 1204 may include a combination of Figure 2 One or more antennas, modems, modulators, transmit MIMO processors, transmit processors, controllers / processors, memories, or combinations thereof, of the depicted network node 110. In some aspects, the transmit component 1204 can be co-located with the receive component 1202 in a transceiver.
[0177] The communications manager 1206 can support the operation of the receiving component 1202 and / or the sending component 1204. For example, the communications manager 1206 can receive information associated with configuring the reception of communications by the receiving component 1202 and / or the sending of communications by the sending component 1204. Additionally or alternatively, the communications manager 1206 can generate and / or provide control information to the receiving component 1202 and / or the sending component 1204 to control the reception and / or sending of communications.
[0178] Transmitting component 1204 can transmit, to the UE, configuration information indicating a CSI-RS resource in a first time slot and a first CSI-IM resource in a second time slot different from the first time slot. Receiving component 1202 can receive a CSI report from the UE, the CSI report based at least in part on a channel measurement associated with the CSI-RS resource and a first interference measurement associated with the first CSI-IM resource.
[0179] Transmitting component 1204 can transmit an indication to the UE as to whether the first interference measurement or the second interference measurement associated with the second CSI-IM resource is to be used for CSI reporting.
[0180] The receiving component 1202 may receive a plurality of CSI reports from the UE, wherein a first subset of the plurality of CSI reports is based at least in part on interference measurements associated with a first CSI-IM resource, and wherein a second subset of the plurality of CSI reports is based at least in part on interference measurements associated with a second CSI-IM resource.
[0181] The communications manager 1206 may indicate to the UE whether the first interference measurement or the second interference measurement associated with the second CSI-IM resource is to be used for CSI reporting based at least in part on whether the configuration information configures a full-duplex restriction for the interference measurement parameter.
[0182] Figure 12 The number and arrangement of components shown in the figure are provided as examples. In practice, there may be Figure 12 Components may include additional components, fewer components, different components, or differently arranged components than those shown in FIG. Figure 12 Two or more components shown in may be implemented within a single component, or Figure 12 The single component shown in can be implemented as multiple distributed components. Additionally or alternatively, Figure 12 A set of (one or more) components shown in the executable is described as being comprised of Figure 12 One or more functions performed by another group of components shown in FIG.
[0183] The following provides an overview of some aspects of the disclosure:
[0184] Aspect 1: A method of wireless communication performed by a UE, comprising: receiving configuration information indicating a CSI-RS resource in a first time slot and a first CSI-IM resource in a second time slot different from the first time slot; performing a channel measurement in the first time slot using the CSI-RS resource; performing a first interference measurement in the second time slot using the first CSI-IM resource; and sending a CSI report based at least in part on the channel measurement and the first interference measurement.
[0185] Aspect 2: The method of aspect 1, wherein the first time slot is associated with a half-duplex time slot, and wherein the second time slot is associated with a sub-band full-duplex time slot.
[0186] Aspect 3: The method according to any one of aspects 1-2, wherein the configuration information further indicates a second CSI-IM resource associated with the first time slot.
[0187] Aspect 4: The method according to aspect 3, further comprising receiving an indication as to whether the first interference measurement or the second interference measurement associated with the second CSI-IM resource is to be used for CSI reporting.
[0188] Aspect 5: The method according to aspect 4, wherein the indication of whether the first interference measurement or the second interference measurement is to be used for CSI reporting is received via a dynamic message that triggers one of aperiodic CSI reporting or semi-persistent CSI reporting.
[0189] Aspect 6: The method according to Aspect 3 further includes sending multiple CSI reports, wherein a first subset of the multiple CSI reports is based at least in part on interference measurements associated with the first CSI-IM resource, and wherein a second subset of the multiple CSI reports is based at least in part on interference measurements associated with the second CSI-IM resource.
[0190] Aspect 7: The method of aspect 6, wherein sending the plurality of CSI reports comprises alternating between sending CSI reports associated with a first subset of CSI reports and sending CSI reports associated with a second subset of CSI reports.
[0191] Aspect 8: A method according to Aspect 6, wherein sending multiple CSI reports includes at least one of the following: sending CSI reports associated with a first subset of CSI reports according to a periodicity of a first configuration, or sending CSI reports associated with a second subset of CSI reports according to a periodicity of a second configuration.
[0192] Aspect 9: The method according to aspect 3 further includes: determining whether the first interference measurement or the second interference measurement associated with the second CSI-IM resource will be used for CSI reporting based at least in part on whether the configuration information configures full-duplex restrictions for the interference measurement parameters.
[0193] Aspect 10: The method of aspect 3 further comprising maintaining a first average interference measurement associated with the first CSI-IM resource and a second average interference measurement associated with the second CSI-IM resource.
[0194] Aspect 11: A method according to any one of Aspects 1-10, wherein the configuration information includes: a channel measurement resource configuration associated with a CSI-RS resource set, wherein the CSI-RS resource set includes a CSI-RS resource, and an interference measurement resource configuration associated with a CSI-IM resource set, wherein the CSI-IM resource set includes a first CSI-IM resource and a second CSI-IM resource associated with a first time slot, and wherein the configuration information indicates that the first CSI-IM resource and the second CSI-IM resource are associated with the CSI-RS resource.
[0195] Aspect 12: A method according to Aspect 11, wherein the first CSI-IM resource is associated with at least one of a first period and a first offset, wherein the second CSI-IM resource is associated with at least one of a second period and a second offset, and wherein the first period is different from the second period, and / or the first offset is different from the second offset.
[0196] Aspect 13: The method of aspect 12, wherein at least one of the first period or the first offset is associated with a sub-band full-duplex time slot, and wherein at least one of the second period or the second offset is associated with a half-duplex time slot.
[0197] Aspect 14: A method according to any one of Aspects 1-13, wherein the configuration information includes: a channel measurement resource configuration associated with a CSI-RS resource set, wherein the CSI-RS resource set includes a CSI-RS resource, and an interference measurement resource configuration associated with a first CSI-IM resource set and a second CSI-IM resource set, wherein the first CSI-IM resource set includes a first CSI-IM resource and the second CSI-IM resource set includes a second CSI-IM resource associated with a first time slot, and wherein the configuration information indicates that the first CSI-IM resource set and the second CSI-IM resource set are associated with the CSI-RS resource set.
[0198] Aspect 15: A method according to any one of Aspects 1-14, wherein the configuration information includes: a CMR configuration associated with a CSI-RS resource set including CSI-RS resources, a first IMR configuration associated with a first CSI-IM resource set including a first CSI-IM resource, and a second IMR configuration associated with a second CSI-IM resource set including a second CSI-IM resource associated with a first time slot, and wherein the configuration information indicates that the first IMR configuration and the second IMR configuration are associated with the CMR configuration.
[0199] Aspect 16: A method of wireless communication performed by a network node, comprising: sending configuration information to a UE, the configuration information indicating a CSI-RS resource in a first time slot and a first CSI-IM resource in a second time slot different from the first time slot; and receiving a CSI report from the UE, the CSI report being based at least in part on a channel measurement associated with the CSI-RS resource and a first interference measurement associated with the first CSI-IM resource.
[0200] Aspect 17: The method of aspect 16, wherein the first time slot is associated with a half-duplex time slot, and wherein the second time slot is associated with a sub-band full-duplex time slot.
[0201] Aspect 18: The method according to any one of aspects 16-17, wherein the configuration information further indicates a second CSI-IM resource associated with the first time slot.
[0202] Aspect 19: The method according to aspect 18 further comprises: sending an indication to the UE as to whether the first interference measurement or the second interference measurement associated with the second CSI-IM resource is to be used for CSI reporting.
[0203] Aspect 20: The method according to aspect 19, wherein the indication of whether the first interference measurement or the second interference measurement is to be used for CSI reporting is sent via a dynamic message that triggers one of aperiodic CSI reporting or semi-persistent CSI reporting.
[0204] Aspect 21: The method according to Aspect 18 further includes: receiving multiple CSI reports from the UE, wherein a first subset of the multiple CSI reports is at least partially based on interference measurements associated with the first CSI-IM resource, and wherein a second subset of the multiple CSI reports is at least partially based on interference measurements associated with the second CSI-IM resource.
[0205] Aspect 22: The method of aspect 21, wherein receiving the plurality of CSI reports comprises alternating between receiving CSI reports associated with a first subset of CSI reports and receiving CSI reports associated with a second subset of CSI reports.
[0206] Aspect 23: A method according to Aspect 21, wherein receiving multiple CSI reports includes at least one of the following: receiving CSI reports associated with a first subset of CSI reports from the UE according to a periodicity of a first configuration, or receiving CSI reports associated with a second subset of CSI reports from the UE according to a periodicity of a second configuration.
[0207] Aspect 24: The method according to aspect 18 further includes: indicating to the UE whether the first interference measurement or the second interference measurement associated with the second CSI-IM resource is to be used for CSI reporting based at least in part on whether the configuration information configures full-duplex restriction for the interference measurement parameter.
[0208] Aspect 25: A method according to any one of Aspects 16-24, wherein the configuration information includes: a channel measurement resource configuration associated with a CSI-RS resource set including a CSI-RS resource, and an interference measurement resource configuration associated with a CSI-IM resource set, the CSI-IM resource set including a first CSI-IM resource and a second CSI-IM resource associated with a first time slot, and wherein the configuration information indicates that the first CSI-IM resource and the second CSI-IM resource are associated with the CSI-RS resource.
[0209] Aspect 26: A method according to Aspect 25, wherein the first CSI-IM resource is associated with at least one of a first period and a first offset, wherein the second CSI-IM resource is associated with at least one of a second period and a second offset, and wherein the first period is different from the second period, and / or the first offset is different from the second offset.
[0210] Aspect 27: The method of aspect 26, wherein at least one of the first period or the first offset is associated with a sub-band full-duplex time slot, and wherein at least one of the second period or the second offset is associated with a half-duplex time slot.
[0211] Aspect 28: A method according to any one of Aspects 16-27, wherein the configuration information includes: a channel measurement resource configuration associated with a CSI-RS resource set including a CSI-RS resource, and an interference measurement resource configuration associated with a CSI-IM resource set, the CSI-IM resource set including a first CSI-IM resource and a second CSI-IM resource associated with a first time slot, and wherein the configuration information indicates that the first CSI-IM resource set and the second CSI-IM resource set are associated with the CSI-RS resource set.
[0212] Aspect 29: A method according to any one of Aspects 16-28, wherein the configuration information includes: a CMR configuration associated with a CSI-RS resource set including a CSI-RS resource, a first IMR configuration associated with a first CSI-IM resource set including a first CSI-IM resource, and an interference measurement resource configuration associated with the first CSI-IM resource set and a second CSI-IM resource set, the first CSI-IM resource set including the first CSI-IM resource, the second CSI-IM resource set including the second CSI-IM resource associated with the first time slot, and wherein the configuration information indicates that the first IMR configuration and the second IMR configuration are associated with the CMR configuration.
[0213] Aspect 30: An apparatus for wireless communication at a device, comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform the method of one or more of aspects 1-29.
[0214] Aspect 31: An apparatus for wireless communication, comprising a memory and one or more processors coupled to the memory, the one or more processors configured to perform the method of one or more of aspects 1-29.
[0215] Aspect 32: An apparatus for wireless communication, comprising at least one component for performing the method according to one or more of aspects 1-29.
[0216] Aspect 33: A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by a processor to perform the method according to one or more of aspects 1-29.
[0217] Aspect 34: A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions comprising one or more instructions that, when executed by one or more processors of a device, cause the device to perform the method of one or more of aspects 1-29.
[0218] 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 are possible in light of the above disclosure or may be acquired from practice of the various aspects.
[0219] As used herein, the term "component" is intended to be broadly interpreted as a combination of hardware and / or hardware and software. Whether referred to as software, firmware, middleware, microcode, hardware description language or other terms, "software" should be broadly interpreted to mean instructions, instruction sets, codes, code segments, program codes, programs, subroutines, software modules, applications, software applications, software packages, routines, subroutines, objects, executable files, execution threads, processes and / or functions, and other examples. As used herein, a "processor" is implemented with a combination of hardware and / or hardware and software. It is apparent that the systems and / or methods described herein can be implemented with different forms of hardware and / or a combination of hardware and software. The actual dedicated control hardware or software code used to implement these systems and / or methods does not limit these aspects. Therefore, the operation and behavior of the systems and / or methods are described herein without reference to specific software codes, because those skilled in the art will understand that software and hardware can be designed to implement the systems and / or methods at least in part based on the description herein.
[0220] As used herein, "satisfying a threshold" may refer to a value 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.
[0221] Even if specific combinations of features are described in the claims and / or disclosed in the specification, these combinations are not intended to limit the disclosure of each aspect. Many of these features can be combined in ways not specifically described in the claims and / or disclosed in the specification. The disclosure of each aspect includes the combination of each dependent claim with each other claim in the claim set. As used herein, a phrase referring to "at least one" in a list of items refers to any combination of these items, including individual members. 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, as well as any combination of multiple identical elements (e.g., a+a, a+a+a, a+a+b, a+a+c, a+b+b, a+c+c, b+b, b+b+b, b+b+c, c+c, and c+c+c. Or any other ordering of a, b, and c).
[0222] Unless explicitly described as such, elements, acts, or instructions used herein should not be construed as critical or essential. Furthermore, as used herein, the articles "a" and "an" are intended to include one or more items and can be used interchangeably with "one or more." Furthermore, as used herein, the article "the" is intended to include one or more items referenced in conjunction with the article "the" and can be used interchangeably with "one or more." Furthermore, as used herein, the terms "set" and "group" are intended to include one or more items and can be used interchangeably with "one or more." Figure 1 In cases where there are multiple items, the phrase "only one" or similar language is used. Furthermore, as used herein, the terms "has," "have," "having," and the like are intended to be open-ended terms that do not limit the elements they modify (e.g., an element "having" A may also have B). Furthermore, unless expressly stated otherwise, the phrase "based on" is intended to mean "based, at least in part, on." Furthermore, as used herein, the term "or" when used in tandem is intended to be inclusive and may be used interchangeably with "and / or," unless expressly stated otherwise (e.g., if used in combination with "either" or "only one of").
Claims
1. A user equipment (UE) for wireless communication, comprising: Memory; as well as one or more processors coupled to the memory, the one or more processors configured to: receiving configuration information indicating a channel state information (CSI) reference signal (CSI-RS) resource in a first time slot and a first CSI interference measurement (CSI-IM) resource in a second time slot different from the first time slot; performing channel measurement in the first time slot using the CSI-RS resource; performing a first interference measurement in the second time slot using the first CSI-IM resource; and A CSI report is sent based at least in part on the channel measurement and the first interference measurement.
2. The UE according to claim 1, wherein: The first time slot is associated with a half-duplex time slot, and wherein the second time slot is associated with a sub-band full-duplex time slot.
3. The UE according to claim 1, wherein: The configuration information further indicates a second CSI-IM resource associated with the first time slot.
4. The UE according to claim 3, wherein: The one or more processors are further configured to receive an indication of whether the first interference measurement or a second interference measurement associated with the second CSI-IM resource is to be used for the CSI reporting.
5. The UE according to claim 4, wherein: The one or more processors are further configured to receive the indication of whether the first interference measurement or the second interference measurement is to be used for the CSI reporting via a dynamic message that triggers one of an aperiodic CSI report or a semi-persistent CSI report. The UE according to claim 3, wherein: The one or more processors are further configured to send a plurality of CSI reports, wherein a first subset of the plurality of CSI reports is based at least in part on interference measurements associated with the first CSI-IM resource, and wherein a second subset of the plurality of CSI reports is based at least in part on interference measurements associated with the second CSI-IM resource.
7. The UE according to claim 6, wherein: To send the plurality of CSI reports, the one or more processors are configured to alternate between sending CSI reports associated with the first subset of CSI reports and sending CSI reports associated with the second subset of CSI reports.
8. The UE according to claim 6, wherein: To send the plurality of CSI reports, the one or more processors are configured to: sending CSI reports associated with said first subset of CSI reports according to a first configured periodicity, or CSI reports associated with the second subset of CSI reports are sent according to a second configured periodicity.
9. The UE according to claim 3, wherein: The one or more processors are further configured to determine whether the first interference measurement or a second interference measurement associated with the second CSI-IM resource is to be used for the CSI report based at least in part on whether the configuration information configures a full-duplex restriction for an interference measurement parameter.
10. The UE according to claim 3, wherein: The one or more processors are further configured to maintain a first average interference measurement associated with the first CSI-IM resource and a second average interference measurement associated with the second CSI-IM resource.
11. The UE according to claim 1, in, The configuration information includes: a channel measurement resource configuration associated with a CSI-RS resource set, the CSI-RS resource set including the CSI-RS resource, and an interference measurement resource configuration associated with a CSI-IM resource set, the CSI-IM resource set including the first CSI-IM resource and a second CSI-IM resource associated with the first time slot, and The configuration information indicates that the first CSI-IM resource and the second CSI-IM resource are associated with the CSI-RS resource.
12. The UE according to claim 11, wherein: The first CSI-IM resource is associated with at least one of a first period and a first offset, wherein the second CSI-IM resource is associated with at least one of a second period and a second offset, and wherein at least one of the following is included: The first period is different from the second period, or The first offset is different from the second offset.
13. The UE according to claim 12, wherein: At least one of the first period or the first offset is associated with a sub-band full-duplex time slot, and wherein at least one of the second period or the second offset is associated with a half-duplex time slot.
14. The UE according to claim 1, in, The configuration information includes: a channel measurement resource configuration associated with a CSI-RS resource set, the CSI-RS resource set including the CSI-RS resource, and an interference measurement resource configuration associated with a first CSI-IM resource set and a second CSI-IM resource set, the first CSI-IM resource set including the first CSI-IM resource, the second CSI-IM resource set including a second CSI-IM resource associated with the first time slot, and The configuration information indicates that the first CSI-IM resource set and the second CSI-IM resource set are associated with the CSI-RS resource set.
15. The UE according to claim 1, in, The configuration information includes: a channel measurement resource (CMR) configuration associated with a CSI-RS resource set, the CSI-RS resource set including the CSI-RS resource, a first interference measurement resource (IMR) configuration associated with a first CSI-IM resource set, the first CSI-IM resource set including the first CSI-IM resource, and a second IMR configuration associated with a second CSI-IM resource set, the second CSI-IM resource set including a second CSI-IM resource associated with the first time slot, and The configuration information indicates that the first IMR configuration and the second IMR configuration are associated with the CMR configuration.
16. A network node for wireless communication, comprising: Memory; as well as one or more processors coupled to the memory, the one or more processors configured to: sending configuration information to a user equipment (UE), the configuration information indicating a channel state information (CSI) reference signal (CSI-RS) resource in a first time slot and a first CSI interference measurement (CSI-IM) resource in a second time slot different from the first time slot; as well as A CSI report is received from the UE, the CSI report being based at least in part on a channel measurement associated with the CSI-RS resource and a first interference measurement associated with the first CSI-IM resource.
17. The network node according to claim 16, wherein: The first time slot is associated with a half-duplex time slot, and wherein the second time slot is associated with a sub-band full-duplex time slot.
18. The network node according to claim 16, wherein: The configuration information further indicates a second CSI-IM resource associated with the first time slot.
19. The network node according to claim 18, wherein: The one or more processors are further configured to send an indication to the UE as to whether the first interference measurement or a second interference measurement associated with the second CSI-IM resource is to be used for the CSI reporting.
20. The network node according to claim 19, wherein: The one or more processors are further configured to send an indication of whether the first interference measurement or the second interference measurement is to be used for the CSI reporting via a dynamic message that triggers one of an aperiodic CSI report or a semi-persistent CSI report.
21. The network node according to claim 18, wherein: The one or more processors are further configured to receive a plurality of CSI reports from the UE, wherein a first subset of the plurality of CSI reports is based at least in part on interference measurements associated with the first CSI-IM resource, and wherein a second subset of the plurality of CSI reports is based at least in part on interference measurements associated with the second CSI-IM resource.
22. The network node according to claim 18, wherein: The one or more processors are further configured to indicate to the UE whether the first interference measurement or a second interference measurement associated with the second CSI-IM resource is to be used for the CSI reporting based at least in part on whether the configuration information configures a full-duplex restriction for an interference measurement parameter.
23. The network node according to claim 16, in, The configuration information includes: a channel measurement resource configuration associated with a CSI-RS resource set, the CSI-RS resource set including the CSI-RS resource, and an interference measurement resource configuration associated with a CSI-IM resource set, the CSI-IM resource set including the first CSI-IM resource and a second CSI-IM resource associated with the first time slot, and The configuration information indicates that the first CSI-IM resource and the second CSI-IM resource are associated with the CSI-RS resource.
24. The network node according to claim 16, in, The configuration information includes: a channel measurement resource configuration associated with a CSI-RS resource set, the CSI-RS resource set including the CSI-RS resource, and an interference measurement resource configuration associated with a first CSI-IM resource set and a second CSI-IM resource set, the first CSI-IM resource set including the first CSI-IM resource, the second CSI-IM resource set including a second CSI-IM resource associated with the first time slot, and The configuration information indicates that the first CSI-IM resource set and the second CSI-IM resource set are associated with the CSI-RS resource set.
25. The network node according to claim 16, in, The configuration information includes: a channel measurement resource (CMR) configuration associated with a CSI-RS resource set, the CSI-RS resource set including the CSI-RS resource, a first interference measurement resource (IMR) configuration associated with a first CSI-IM resource set, the first CSI-IM resource set including the first CSI-IM resource, and a second IMR configuration associated with a second CSI-IM resource set, the second CSI-IM resource set including a second CSI-IM resource associated with the first time slot, and The configuration information indicates that the first IMR configuration and the second IMR configuration are associated with the CMR configuration.
26. A method of wireless communication performed by a user equipment (UE), comprising: receiving configuration information indicating a channel state information (CSI) reference signal (CSI-RS) resource in a first time slot and a first CSI interference measurement (CSI-IM) resource in a second time slot different from the first time slot; performing channel measurement in the first time slot using the CSI-RS resource; performing a first interference measurement in the second time slot using the first CSI-IM resource; and A CSI report is sent based at least in part on the channel measurement and the first interference measurement.
27. The method according to claim 26, wherein The first time slot is associated with a half-duplex time slot, and wherein the second time slot is associated with a sub-band full-duplex time slot.
28. The method according to claim 26, wherein The configuration information further indicates a second CSI-IM resource associated with the first time slot.
29. A method of wireless communication performed by a network node, comprising: sending configuration information to a user equipment (UE), the configuration information indicating a channel state information (CSI) reference signal (CSI-RS) resource in a first time slot and a first CSI interference measurement (CSI-IM) resource in a second time slot different from the first time slot; as well as A CSI report is received from the UE, the CSI report being based at least in part on a channel measurement associated with the CSI-RS resource and a first interference measurement associated with the first CSI-IM resource.
30. The method according to claim 29, wherein The first time slot is associated with a half-duplex time slot, and wherein the second time slot is associated with a sub-band full-duplex time slot.