Method and apparatus for configuring uplink transmission configuration indication state

Abstract

An apparatus, method, and system for configuring UL-TCI states are disclosed. A method (500) includes receiving an RRC message (502) configuring a set of UL-TCI states. Each UL-TCI state defines at least one uplink spatial relationship. Each uplink spatial relationship corresponds to a spatial domain transmission filter corresponding to a CSI-RS, an SSB, or an SSB. The method (500) includes receiving MAC CE information (504) including information activating a subset of a set of UL-TCI states, the subset of the set of UL-TCI states being used in a UL-TCI field of a DCI for scheduling a codebook-based PUSCH transmission. The method (500) includes receiving a DCI (506) having a UL-TCI field indicating at least one uplink spatial relationship for a UE to use for a codebook-based PUSCH transmission. The method (500) includes transmitting a codebook-based PUSCH transmission (508) having at least one uplink spatial relationship indicated by the UL-TCI field in the DCI.

Description

Technical Field

[0001] The subject matter disclosed herein relates generally to wireless communications and, more particularly, to configuring an uplink transmission configuration indication state. Background Art

[0002] The following abbreviations are defined herein, at least some of which are referenced in the following description: 3rd Generation Partnership Project (“3GPP”), 5G QoS indicator ("5QI"), acknowledgement mode ("AM"), aperiodic ("AP"), backhaul ("BH"), broadcast multicast ("BM"), buffer occupied ("BO"), base station ("BS"), buffer status report ("BSR"), bandwidth ("BW"), bandwidth part ("BWP"), carrier aggregation ("CA"), code block group ("CBG"), CBG flush information ("CBGFI"), CBG transmission information ("CBGTI"), component carrier ("CC"), code division multiplexing ("CDM"), control unit ("CE"), coordinated multipoint ("CoMP"), class of requirement ("CoR"), control resource set ("CORESET"), cyclic prefix ("CP"), cyclic prefix OFDM ("CP-OFDM"), cyclic redundancy check ("CRC"), CSI-RS resource indicator ("CRI"), cell RNTI ("C-RNTI"), channel state information ("CSI"), CSI IM ("CSI-IM"), CSI RS ("CSI-RS"), Channel Quality Indicator ("CQI"), Central Unit ("CU"), Codeword ("CW"), Downlink Allocation Index ("DAI"), Downlink Control Information ("DCI"), Downlink Feedback Information ("DFI"), Downlink ("DL"), Discrete Fourier Transform Spread OFDM ("DFT-s-OFDM"), Demodulation Reference Signal ("DMRS" or "DM-RS"), Data Radio Bearer ("DRB"), Dedicated Short Range Communication ("DSRC"), Distributed Unit ("DU"), Enhanced Mobile Broadband ("eMBB"), Evolved Node B ("eNB"), Enhanced Subscriber Identity Module ("eSIM"), Enhanced ("E") 、Frequency Division Duplex (“FDD”), Frequency Division Multiplexing (“FDM”), Frequency Division Multiple Access (“FDMA”), Frequency Range (“FR”), 450MHz–6000MHz (“FR1”), 24250MHz–52600MHz (“FR2”), Hybrid Automatic Repeat Request (“HARQ”), High Definition Multimedia Interface (“HDMI”), High Speed ​​Train (“HST”), Integrated Access Backhaul (“IAB”), Identity or Identifier or Identity (“ID”), Information Element (“IE”), Interference Measurement (“IM”), International Mobile Subscriber Identity (“IMSI”), Internet of Things (“IoT”), Internet Protocol (“IP”), Joint Transport (“JT”), Level 1 (“L1”), L1 RSRP (“L1-RSRP”), L1 SINR (“L1-SINR”), Logical Channel (“LCH”), Logical Channel Group (“LCG”), Logical Channel ID (“LCID”),Logical Channel Priority ("LCP"), Layer Indicator ("LI"), Least Significant Bit ("LSB"), Long Term Evolution ("LTE"), Level of Automation ("LoA"), Medium Access Control ("MAC"), Modulation and Coding Scheme ("MCS"), Multiple DCI ("M-DCI"), Master Information Block ("MIB"), Multiple Input Multiple Output ("MIMO"), Maximum Permitted Exposure ("MPE"), Most Significant Bit ("MSB"), Mobile Terminal ("MT"), Machine Type Communication ("MTC"), Multiple PDSCH ("Multi-PDSCH"), Multiple TRP ("M-TRP"), Multi-User ("MU"), Multi-User MIMO ("MU-MIMO"), Minimum Mean Square Error ("MMSE"), Negative Acknowledgement ("NACK") or ("NAK"), Non-Coherent Joint Transmission ("NCJT"), Next Generation ("NG"), Next Generation Node B ("gNB"), New Radio ("NR"), Non-Zero Power ("NZP"), NZP CSI-RS ("NZP-CSI-RS"), Orthogonal Frequency Division Multiplexing ("OFDM"), Peak to Average Power Ratio ("PAPR"), Physical Broadcast Channel ("PBCH"), Physical Downlink Control Channel ("PDCCH"), Physical Downlink Shared Channel ("PDSCH"), PDSCH Configuration ("PDSCH-Config"), Policy Control Function ("PCF"), Packet Data Convergence Protocol ("PDCP"), Packet Data Network ("PDN"), Protocol Data Unit ("PDU"), Public Land Mobile Network ("PLMN"), Precoding Matrix Indicator ("PMI"), ProSe Per-Packet Priority ("PPPP"), ProSe Per-Packet Reliability ("PPPR"), Physical Resource Block ("PRB"), Switched Packets ("PS"), Physical Sidelink Control Channel ("PSCCH"), Physical Sidelink Shared Channel ("PSS") ), Phase Tracking RS (“PTRS” or “PT-RS”), Physical Uplink Control Channel (“PUCCH”), Physical Uplink Shared Channel (“PUSCH”), Quasi Co-location (“QCL”), Quality of Service (“QoS”), Random Access Channel (“RACH”), Radio Access Network (“RAN”), Radio Access Technology (“RAT”), Resource Element (“RE”), Radio Frequency (“RF”), Rank Indicator (“RI”), Radio Link Control (“RLC”), Radio Link Failure (“RLF”), Radio Network Temporary Identifier (“RNTI”), Resource Pool (“RP”), Radio Resource Control (“RRC”), Remote Radio Head (“RRH”), Reference Signal (“RS”), Reference Signal Received Power (“RSRP”), Reference Signal Received Quality (“RSRQ”), Redundancy Version (“RV”), Receive (“RX”),Single Carrier Frequency Domain Spread Spectrum (“SC-FDSS”), Secondary Cell (“SCell”), Spatial Channel Model (“SCM”), Subcarrier Spacing (“SCS”), Single DCI (“S-DCI”), Spatial Division Multiplexing (“SDM”), Service Data Unit (“SDU”), Single Frequency Network (“SFN”), Subscriber Identity Module (“SIM”), Signal-to-Interference and Noise Ratio (“SINR”), Sidelink (“SL”), Sequence Number (“SN”), Semi-Persistent (“SP”), Scheduling Request (“SR”), SRS Resource Indicator (“SRI”), Sounding Reference Signal (“SRS”), Synchronization Signal (“SS”), SS / PBCH Block (“SSB”), Transport Block (“TB”), Transmission Configuration Indicator (“TCI”), Time Division Duplex (“TDD”), Time Division Multiplexing (“TDM”), Temporary Mobile Subscriber Identity (“TMSI”), Transmit Power Control (“TPC”), Pre-programmed Transmission code matrix indicator (“TPMI”), transmit receive point (“TRP”), technical standard (“TS”), transmit (“TX”), user entity / equipment (mobile terminal) (“UE”), universal integrated circuit card (“UICC”), uplink (“UL”), unacknowledged mode (“UM”), universal mobile telecommunications system (“UMTS”), LTE radio interface (“Uu interface”), user plane (“UP”), ultra-reliable low latency communications (“URLLC”), universal subscriber identity module (“USIM”), universal terrestrial radio access network (“UTRAN”), vehicle-to-everything (“V2X”), voice over IP (“VoIP”), access to public land mobile networks (“VPLMN”), virtual resource blocks (“VRB”), vehicle RNTI (“V-RNTI”), world-wide interoperability for microwave access (“WiMAX”), zero forcing (“ZF”), zero power (“ZP”), and ZP CSI-RS (“ZP-CSI-RS”). As used herein, "HARQ-ACK" may collectively represent a positive acknowledgement ("ACK") and a negative acknowledgement ("NAK"). ACK means that the TB is correctly received, while NAK means that the TB is erroneously received.

[0003] In some wireless communication networks, different TCI states may exist. Summary of the invention

[0004] A method for configuring an uplink transmission configuration indication state is disclosed. An apparatus and a system also perform the functions of the method. In one embodiment, the method includes: receiving a radio resource control message configuring an uplink transmission configuration indication state set at a user equipment, wherein each uplink transmission configuration indication state in the uplink transmission configuration indication state set defines at least one uplink spatial relationship, wherein each uplink spatial relationship in the at least one uplink spatial relationship corresponds to a spatial domain transmission filter, and the spatial domain transmission filter corresponds to a channel state information reference signal, a synchronization signal block, or a sounding reference signal. In some embodiments, the method includes receiving media access control control unit information, the media access control control unit information including information for activating a subset of the uplink transmission configuration indication state set, the subset of the uplink transmission configuration indication state set being used in an uplink transmission configuration indication field of downlink control information for scheduling codebook-based physical uplink shared channel transmissions. In certain embodiments, the method includes receiving downlink control information having an uplink transmission configuration indication field, the uplink transmission configuration indication field indicating at least one uplink spatial relationship for a user equipment to use for a codebook-based physical uplink shared channel transmission. In various embodiments, the method includes transmitting a codebook-based physical uplink shared channel transmission having at least one uplink spatial relationship indicated by the uplink transmission configuration indication field in the downlink control information.

[0005] In one embodiment, a device for configuring an uplink transmission configuration indication state includes a receiver, which: receives a radio resource control message that configures an uplink transmission configuration indication state set, wherein each uplink transmission configuration indication state in the uplink transmission configuration indication state set defines at least one uplink spatial relationship, wherein each uplink spatial relationship in the at least one uplink spatial relationship corresponds to a spatial domain transmission filter, and the spatial domain transmission filter corresponds to a channel state information reference signal, a synchronization signal block, or a sounding reference signal; receives media access control control unit information, wherein the media access control control unit information includes information for activating a subset of the uplink transmission configuration indication state set, and the subset of the uplink transmission configuration indication state set is used in an uplink transmission configuration indication field of downlink control information for scheduling codebook-based physical uplink shared channel transmission; and receives downlink control information having an uplink transmission configuration indication field, wherein the uplink transmission configuration indication field indicates at least one uplink spatial relationship for user equipment to use for codebook-based physical uplink shared channel transmission. In some embodiments, an apparatus includes a transmitter that transmits a codebook-based physical uplink shared channel transmission having at least one uplink spatial relationship indicated by an uplink transmission configuration indication field in downlink control information.

[0006] A method for configuring an uplink transmission configuration indication state comprises: transmitting a radio resource control message configuring an uplink transmission configuration indication state set, wherein each uplink transmission configuration indication state in the uplink transmission configuration indication state set defines at least one uplink spatial relationship, wherein each uplink spatial relationship in the at least one uplink spatial relationship corresponds to a spatial domain transmission filter, and the spatial domain transmission filter corresponds to a channel state information reference signal, a synchronization signal block, or a sounding reference signal. In some embodiments, the method comprises transmitting a medium access control control unit information, the medium access control control unit information comprising information activating a subset of the uplink transmission configuration indication state set, the subset of the uplink transmission configuration indication state set is used in an uplink transmission configuration indication field of downlink control information for scheduling codebook-based physical uplink shared channel transmission. In certain embodiments, the method comprises transmitting a downlink control message having an uplink transmission configuration indication field, the uplink transmission configuration indication field indicating at least one uplink spatial relationship for a user equipment to use for codebook-based physical uplink shared channel transmission. In various embodiments, the method includes receiving a codebook-based physical uplink shared channel transmission having at least one uplink spatial relationship indicated by an uplink transmission configuration indication field in downlink control information.

[0007] In one embodiment, a device for configuring an uplink transmission configuration indication state includes a transmitter, which: transmits a radio resource control message configuring an uplink transmission configuration indication state set, wherein each uplink transmission configuration indication state in the uplink transmission configuration indication state set defines at least one uplink spatial relationship, wherein each uplink spatial relationship in the at least one uplink spatial relationship corresponds to a spatial domain transmission filter, and the spatial domain transmission filter corresponds to a channel state information reference signal, a synchronization signal block or a sounding reference signal; transmits medium access control control unit information, the medium access control control unit information includes information for activating a subset of the uplink transmission configuration indication state set, and the subset of the uplink transmission configuration indication state set is used in an uplink transmission configuration indication field of downlink control information for scheduling codebook-based physical uplink shared channel transmission; and transmits downlink control information having an uplink transmission configuration indication field, and the uplink transmission configuration indication field indicates at least one uplink spatial relationship for user equipment to use for codebook-based physical uplink shared channel transmission. In some embodiments, an apparatus includes a receiver that receives a codebook-based physical uplink shared channel transmission having at least one uplink spatial relationship indicated by an uplink transmission configuration indication field in downlink control information. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] A more particular description of the embodiments briefly described above will be rendered by reference to specific embodiments illustrated in the accompanying drawings. Understanding that these drawings depict only some embodiments and are therefore not to be considered limiting of scope, the embodiments will be described and explained with additional specificity and detail through the use of the accompanying drawings, in which:

[0009] Figure 1 is a schematic block diagram illustrating an embodiment of a wireless communication system for configuring an uplink transmission configuration indication state;

[0010] Figure 2 is a schematic block diagram illustrating one embodiment of an apparatus that may be used to configure an uplink transmission configuration indication state;

[0011] Figure 3 is a schematic block diagram illustrating one embodiment of an apparatus that may be used to configure an uplink transmission configuration indication state;

[0012] Figure 4 is a schematic block diagram of a system illustrating one embodiment of configuration of a UL-TCI state;

[0013] Figure 5 is a flow chart illustrating one embodiment of a method for configuring an uplink transmission configuration indication state; and

[0014] Figure 6 is a flow chart illustrating another embodiment of a method for configuring an uplink transmission configuration indication state. DETAILED DESCRIPTION

[0015] As will be appreciated by those skilled in the art, aspects of the embodiments may be embodied as systems, devices, methods or program products. Thus, the embodiments may take the form of a complete hardware embodiment, a complete software embodiment (including firmware, resident software, microcode, etc.), or a combination of software and hardware aspects, which may generally be referred to herein as a "circuit," "module," or "system." In addition, the embodiments may take the form of a program product embodied in one or more computer-readable storage devices storing machine-readable code, computer-readable code, and / or program code, hereinafter referred to as code. The storage device may be tangible, non-temporary, and / or non-transmitting. The storage device may not embody a signal. In a certain embodiment, the storage device employs only a signal for accessing the code.

[0016] Certain functional units described in this specification may be labeled as modules in order to more specifically emphasize their implementation independence. For example, a module may be implemented as a hardware circuit including a custom very large scale integration ("VLSI") circuit or gate array, an off-the-shelf semiconductor such as a logic chip, a transistor, or other discrete components. A module may also be implemented in a programmable hardware device such as a field programmable gate array, a programmable array logic, a programmable logic device, or the like.

[0017] Modules may also be implemented in code and / or software for execution by various types of processors. An identified code module may, for example, include one or more physical or logical blocks of executable code, which may, for example, be organized as objects, procedures, or functions. However, the executable files of the identified modules need not be physically located together, but may include distinct instructions stored in different locations that, when logically connected together, comprise the module and achieve the stated purpose of the module.

[0018] In fact, code module can be a single instruction or many instructions, and can even be distributed on several different code segments, among different programs and across several memory devices.Similarly, in this article, operating data can be identified and illustrated in the module, and can be embodied and organized in the data structure of any suitable type in any suitable form.Operational data can be collected as a single data set, or can be distributed in different locations included on different computer-readable storage devices.When a module or part of a module is implemented with software, the software part is stored on one or more computer-readable storage devices.

[0019] Any combination of one or more computer readable media may be utilized. The computer readable medium may be a computer readable storage medium. The computer readable storage medium may be a storage device storing code. The storage device may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, holographic, micromechanical or semiconductor system, apparatus or device, or any suitable combination of the foregoing.

[0020] More specific examples of storage devices (a non-exhaustive list) would include the following: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a random access memory ("RAM"), a read-only memory ("ROM"), an erasable programmable read-only memory ("EPROM" or flash memory), a portable compact disc read-only memory ("CD-ROM"), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the context of this document, a computer-readable storage medium may be any tangible medium that can contain or store a program for use by or in connection with an instruction execution system, apparatus, or device.

[0021] The code for performing the operations of the embodiments may be any number of lines and may be written in any combination of one or more programming languages ​​including object-oriented programming languages ​​such as Python, Ruby, Java, Smalltalk, C++, and the like, and traditional procedural programming languages ​​such as the "C" programming language, and / or machine languages ​​such as assembly languages. The code may be executed entirely on the user's computer, partially on the user's computer, as a separate software package, partially on the user's computer, partially on a remote computer, or entirely on a remote computer or server. In the last scenario, the remote computer may be connected to the user's computer via any type of network, including a local area network ("LAN") or a wide area network ("WAN"), or may be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0022] References to "one embodiment", "embodiment" or similar language in this specification mean that the specific features, structures or characteristics described in conjunction with the embodiment are included in at least one embodiment. Therefore, unless otherwise expressly stated, the phrases "in one embodiment", "in an embodiment" and similar language appearing throughout the specification may but do not necessarily all refer to the same embodiment, but rather mean "one or more but not all embodiments". Unless otherwise expressly stated, the terms "including", "comprising", "having" and their variations mean "including but not limited to". Unless otherwise expressly stated, the list of items listed does not indicate that any or all items are mutually exclusive. Unless otherwise expressly stated, the terms "one", "an" and "the" also refer to "one or more".

[0023] In addition, the features, structures or characteristics of the described embodiments may be combined in any suitable manner. In the following description, many specific details are provided, such as examples of programming, software modules, user selections, network transactions, database queries, database structures, hardware modules, hardware circuits, hardware chips, etc., to provide a thorough understanding of the embodiments. However, those skilled in the relevant art will recognize that the embodiments may be practiced without one or more specific details, or with other methods, components, materials, etc. In other instances, well-known structures, materials or operations are not shown or described in detail to avoid obscuring aspects of the embodiments.

[0024] Aspects of the embodiments are described below with reference to schematic flow charts and / or schematic block diagrams of the methods, devices, systems, and program products according to the embodiments. It will be understood that each frame of the schematic flow charts and / or schematic block diagrams and the combination of frames in the schematic flow charts and / or schematic block diagrams can be implemented by code. The code can be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device to produce a machine, so that instructions executed by the processor of the computer or other programmable data processing device create a device for implementing the functions / operations specified in one or more frames of the schematic flow charts and / or schematic block diagrams.

[0025] The code may also be stored in a storage device that is capable of directing a computer, other programmable data processing apparatus, or other device to operate in a specific manner so that the instructions stored in the storage device produce an article of manufacture including instructions that implement the functions / actions specified in one or more boxes of the schematic flowchart and / or schematic block diagram.

[0026] The code may also be loaded onto a computer, other programmable data processing apparatus, or other device so that a series of operational steps are performed on the computer, other programmable apparatus, or other device to produce a computer-implemented process, so that the code executed on the computer or other programmable apparatus provides a process for implementing the functions / actions specified in one or more boxes of the flowchart and / or block diagram.

[0027] The schematic flow charts and / or schematic block diagrams in the accompanying drawings illustrate possible implementation architectures, functions, and operations of devices, systems, methods, and program products according to various embodiments. In this regard, each box in the schematic flow charts and / or schematic block diagrams may represent a module, segment, or portion of a code, which includes one or more executable instructions of the code for implementing a specified logical function.

[0028] It should also be noted that in some alternative implementations, the functions annotated in the blocks may not occur in the order annotated in the drawings. For example, two blocks shown in succession may actually be executed substantially simultaneously, or the blocks may sometimes be executed in reverse order, depending on the functions involved. Other steps and methods are contemplated that are equivalent in function, logic, or effect to one or more blocks or portions thereof of the illustrated drawings.

[0029] Although various arrow types and line types can be used in flow charts and / or block diagrams, it should be understood that they do not limit the scope of the corresponding embodiments. In fact, some arrows or other connectors can be used to indicate only the logical flow of the depicted embodiment. For example, an arrow can indicate a waiting or monitoring period of unspecified duration between the enumeration steps of the depicted embodiment. It will also be noted that each frame of the block diagram and / or flow chart and the combination of frames in the block diagram and / or flow chart can be implemented by a system based on dedicated hardware that performs a specific function or action, or a combination of dedicated hardware and code.

[0030] The description of an element in each figure may refer to an element of the previous figure. The same reference numerals refer to the same elements in all figures, including alternative embodiments of the same elements.

[0031] Figure 1 An embodiment of a wireless communication system 100 for configuring an uplink transmission configuration indication state is depicted. In one embodiment, the wireless communication system 100 includes a remote unit 102 and a network unit 104. Even if Figure 1 While a particular number of remote units 102 and network units 104 are depicted in FIG. 1 , one skilled in the art will recognize that any number of remote units 102 and network units 104 may be included in the wireless communication system 100 .

[0032] In one embodiment, the remote unit 102 may include a computing device such as a desktop computer, a laptop computer, a personal digital assistant (“PDA”), a tablet computer, a smart phone, a smart TV (e.g., a TV connected to the Internet), a set-top box, a game console, a security system (including a security camera), a car computer, a network device (e.g., a router, a switch, a modem), an IoT device, etc. In some embodiments, the remote unit 102 includes a wearable device such as a smart watch, a fitness band, an optical head-mounted display, etc. In addition, the remote unit 102 may be referred to as a subscriber unit, a mobile device, a mobile station, a user, a terminal, a mobile terminal, a fixed terminal, a subscriber station, a UE, a user terminal, a device, or other terms used in the art. The remote unit 102 may communicate directly with one or more network units 104 via UL communication signals and / or the remote unit 102 may communicate directly with other remote units 102 via sidelink communications.

[0033] The network units 104 may be distributed over a geographic area. In some embodiments, the network units 104 may also be referred to as access points, access terminals, base stations, base stations, node-Bs, eNBs, gNBs, home node-Bs, RANs, relay nodes, devices, network devices, IAB nodes, donor IAB nodes, or any other terminology used in the art. The network unit 104 is typically part of a radio access network that includes one or more controllers communicatively coupled to one or more corresponding network units 104. The radio access network is typically communicatively coupled to one or more core networks, which may be coupled to other networks, such as the Internet and public switched telephone networks. These and other elements of the radio access and core networks are not illustrated, but are generally well known to those of ordinary skill in the art.

[0034] In one embodiment, the wireless communication system 100 complies with the 5G or NG (next generation) standard of the 3GPP protocol, wherein the network unit 104 transmits using NG RAN technology. However, more generally, the wireless communication system 100 may implement some other open or proprietary communication protocols, such as WiMAX and other protocols. The present disclosure is not intended to be limited to any particular wireless communication system architecture or protocol implementation.

[0035] The network unit 104 may serve multiple remote units 102 within a service area, such as a cell or cell sector, via wireless communication links. The network unit 104 transmits DL communication signals to serve the remote units 102 in the time, frequency, and / or spatial domains.

[0036] In various embodiments, the remote unit 102 may receive a radio resource control message configuring a set of uplink transmission configuration indication states, wherein each uplink transmission configuration indication state in the set of uplink transmission configuration indication states defines at least one uplink spatial relationship, wherein each uplink spatial relationship in the at least one uplink spatial relationship corresponds to a spatial domain transmission filter corresponding to a channel state information reference signal, a synchronization signal block, or a sounding reference signal. In certain embodiments, the remote unit 102 may receive a media access control control unit information including information activating a subset of the set of uplink transmission configuration indication states, the subset of the set of uplink transmission configuration indication states for use in an uplink transmission configuration indication field of downlink control information for scheduling codebook-based physical uplink shared channel transmissions. In some embodiments, the remote unit 102 may receive downlink control information having an uplink transmission configuration indication field indicating at least one uplink spatial relationship for a user equipment to use for codebook-based physical uplink shared channel transmissions. In various embodiments, the remote unit 102 may transmit a codebook-based physical uplink shared channel transmission having at least one uplink spatial relationship indicated by the uplink transmission configuration indication field in the downlink control information. Thus, the remote unit 102 may be operable to configure the uplink transmission configuration indication state.

[0037] In some embodiments, the network unit 104 may transmit a radio resource control message configuring an uplink transmission configuration indication state set, wherein each uplink transmission configuration indication state in the uplink transmission configuration indication state set defines at least one uplink spatial relationship, wherein each uplink spatial relationship in the at least one uplink spatial relationship corresponds to a spatial domain transmission filter corresponding to a channel state information reference signal, a synchronization signal block, or a sounding reference signal. In certain embodiments, the network unit 104 may transmit a media access control control unit information, the media access control control unit information including a subset of the activated uplink transmission configuration indication state set, the subset of the uplink transmission configuration indication state set being used in an uplink transmission configuration indication field of downlink control information for scheduling codebook-based physical uplink shared channel transmission. In various embodiments, the network unit 104 may transmit downlink control information having an uplink transmission configuration indication field, the uplink transmission configuration indication field indicating at least one uplink spatial relationship for a user equipment to use for codebook-based physical uplink shared channel transmission. In some embodiments, the network unit 104 may receive a codebook-based physical uplink shared channel transmission with at least one uplink spatial relationship indicated by an uplink transmission configuration indication field in the downlink control information. Thus, the network unit 104 may be configured to configure an uplink transmission configuration indication state.

[0038] Figure 2 An embodiment of an apparatus 200 that can be used to configure an uplink transmission configuration indication state is depicted. Apparatus 200 includes an embodiment of a remote unit 102. In addition, remote unit 102 may include a processor 202, a memory 204, an input device 206, a display 208, a transmitter 210, and a receiver 212. In some embodiments, input device 206 and display 208 are combined into a single device, such as a touch screen. In some embodiments, remote unit 102 may not include any input device 206 and / or display 208. In various embodiments, remote unit 102 may include one or more of processor 202, memory 204, transmitter 210, and receiver 212, and may not include input device 206 and / or display 208.

[0039] In one embodiment, the processor 202 may include any known controller capable of executing computer-readable instructions and / or capable of performing logical operations. For example, the processor 202 may be a microcontroller, a microprocessor, a central processing unit (“CPU”), a graphics processing unit (“GPU”), an auxiliary processing unit, a field programmable gate array (“FPGA”), or a similar programmable controller. In some embodiments, the processor 202 executes instructions stored in the memory 204 to perform the methods and routines described herein. The processor 202 is communicatively coupled to the memory 204, the input device 206, the display 208, the transmitter 210, and the receiver 212.

[0040] In one embodiment, memory 204 is a computer-readable storage medium. In some embodiments, memory 204 includes volatile computer storage media. For example, memory 204 may include RAM, including dynamic RAM ("DRAM"), synchronous dynamic RAM ("SDRAM"), and / or static RAM ("SRAM"). In some embodiments, memory 204 includes non-volatile computer storage media. For example, memory 204 may include a hard drive, flash memory, or any other suitable non-volatile computer storage device. In some embodiments, memory 204 includes both volatile computer storage media and non-volatile computer storage media. In some embodiments, memory 204 also stores program code and related data, such as an operating system or other controller algorithm operating on remote unit 102.

[0041] In one embodiment, input device 206 may include any known computer input device, including a touchpad, buttons, keyboard, stylus, microphone, etc. In some embodiments, input device 206 may be integrated with display 208, for example, as a touch screen or similar touch-sensitive display. In some embodiments, input device 206 includes a touch screen so that text can be entered using a virtual keyboard displayed on the touch screen and / or by handwriting on the touch screen. In some embodiments, input device 206 includes two or more different devices such as a keyboard and a touchpad.

[0042] In one embodiment, display 208 may include any known electronically controllable display or display device. Display 208 may be designed to output visual signals, auditory signals and / or tactile signals. In some embodiments, display 208 includes an electronic display capable of outputting visual data to a user. For example, display 208 may include, but is not limited to, an LCD display, an LED display, an OLED display, a projector, or a similar display device capable of outputting images, text, etc. to a user. As another non-limiting example, display 208 may include a wearable display such as a smart watch, smart glasses, a head-up display, etc. In addition, display 208 may be a component of a smart phone, a personal digital assistant, a television, a desktop computer, a notebook (laptop) computer, a personal computer, a vehicle dashboard, etc.

[0043] In some embodiments, the display 208 includes one or more speakers for generating sounds. For example, the display 208 can generate an audible alarm or notification (e.g., a beep or ring). In some embodiments, the display 208 includes one or more tactile devices for generating vibration, motion, or other tactile feedback. In some embodiments, all or part of the display 208 can be integrated with the input device 206. For example, the input device 206 and the display 208 can form a touch screen or similar touch-sensitive display. In other embodiments, the display 208 can be located near the input device 206.

[0044] In various embodiments, the receiver 212 may: receive a radio resource control message configuring an uplink transmission configuration indication state set, wherein each uplink transmission configuration indication state in the uplink transmission configuration indication state set defines at least one uplink spatial relationship, wherein each uplink spatial relationship in the at least one uplink spatial relationship corresponds to a spatial domain transmission filter, and the spatial domain transmission filter corresponds to a channel state information reference signal, a synchronization signal block, or a sounding reference signal; receive media access control control unit information, the media access control control unit information including information for activating a subset of the uplink transmission configuration indication state set, the subset of the uplink transmission configuration indication state set being used in an uplink transmission configuration indication field of downlink control information for scheduling codebook-based physical uplink shared channel transmission; and receive downlink control information having an uplink transmission configuration indication field, the uplink transmission configuration indication field indicating at least one uplink spatial relationship for user equipment to use for codebook-based physical uplink shared channel transmission. In some embodiments, the transmitter 210 may transmit a codebook-based physical uplink shared channel transmission with at least one uplink spatial relationship indicated by an uplink transmission configuration indication field in the downlink control information.

[0045] Although only one transmitter 210 and one receiver 212 are shown, the remote unit 102 may have any suitable number of transmitters 210 and receivers 212. The transmitter 210 and receiver 212 may be any suitable type of transmitter and receiver. In one embodiment, the transmitter 210 and receiver 212 may be part of a transceiver.

[0046] Figure 3 One embodiment of an apparatus 300 that may be used to configure an uplink transmission configuration indication state is depicted. The apparatus 300 includes one embodiment of a network unit 104. In addition, the network unit 104 may include a processor 302, a memory 304, an input device 306, a display 308, a transmitter 310, and a receiver 312. As may be appreciated, the processor 302, the memory 304, the input device 306, the display 308, the transmitter 310, and the receiver 312 may be substantially similar to the processor 202, the memory 204, the input device 206, the display 208, the transmitter 210, and the receiver 212 of the remote unit 102, respectively.

[0047] In some embodiments, the transmitter 310 may: transmit a radio resource control message configuring an uplink transmission configuration indication state set, wherein each uplink transmission configuration indication state in the uplink transmission configuration indication state set defines at least one uplink spatial relationship, wherein each uplink spatial relationship in the at least one uplink spatial relationship corresponds to a spatial domain transmission filter, and the spatial domain transmission filter corresponds to a channel state information reference signal, a synchronization signal block or a sounding reference signal; transmit media access control control unit information, the media access control control unit information including information for activating a subset of the uplink transmission configuration indication state set, the subset of the uplink transmission configuration indication state set is used in the uplink transmission configuration indication field of the downlink control information for scheduling codebook-based physical uplink shared channel transmission; and transmit downlink control information having an uplink transmission configuration indication field, the uplink transmission configuration indication field indicating at least one uplink spatial relationship for user equipment to use for codebook-based physical uplink shared channel transmission. In certain embodiments, the receiver 312 may receive a codebook-based physical uplink shared channel transmission having at least one uplink spatial relationship indicated by an uplink transmission configuration indication field in the downlink control information.

[0048] Although only one transmitter 310 and one receiver 312 are shown, the network unit 104 may have any suitable number of transmitters 310 and receivers 312. The transmitter 310 and receiver 312 may be any suitable type of transmitter and receiver. In one embodiment, the transmitter 310 and receiver 312 may be part of a transceiver.

[0049] In various embodiments, the PDSCH DL transmission beam may be indicated in DCI format 1_1 or 1_2 via a 3-bit TCI field. This indication may enable the gNB to select from the possible DL beams (e.g. for a single TRP transmission). In some embodiments, such as for single DCI multi-TRP PDSCH transmission, a DL TCI code point may be associated with two different TCI states, one for each TRP.

[0050] In certain embodiments, the PUSCH UL transmit beam may be a property of the SRS resource and may only change when the SRS resource indicated by the SRI field in DCI format 0_1 ​​or 0_2 changes. In various embodiments, such as for codebook-based PUSCH, the UE may be configured with 1 SRS resource set with usage set to "codebook". In such an embodiment, 1 SRS resource set may contain 2 SRS resources with the same number of antenna ports. When the 2 SRS resources are configured with different spatialRelationInfo (e.g., spatial relation information, configured spatial relation information), the gNB may select the UL TX beam by selecting SRI=0 or SRI=1. Each SRS resource may have its spatialRelationInfo configured by RRC to CSI-RS, SSB, or another SRS, and RRC reconfiguration may be used if the gNB decides to update the spatialRelationInfo of an SRS resource. In some embodiments, to address the issue of full power UL transmission for UEs that do not have TX power amplification that can support full power transmission (e.g., 23dBm for Class 3 UEs), the UE may be configured with up to 4 different SRS resources with different numbers of antenna ports. However, the 4 SRS resources may be determined by spatialRelationInfo.

[0051] In various embodiments, such as for non-codebook based PUSCH transmissions, the UL TX beam may be determined as part of the SRI in the DCI field (e.g., part of the attributes of the SRS resource selected for the PUSCH transmission). In certain embodiments, the UE may be configured with a single SRS resource set with usage set to "non-codebook". A single SRS resource set may contain up to 4 single-port SRS resources. For periodic or semi-persistent SRS resource sets, the gNB may RRC configure the SRS resource set with the associated CSI-RS. Thus, all SRS resources may have the same UL TX beam determined by the associated CSI-RS. In such an embodiment, the gNB may change the UL TX beam for the PUSCH by reconfiguring the associated CSI-RS with an RRC message. In some embodiments, such as for non-periodic SRS resource sets, each SRS resource may be configured with its own spatialRelationInfo. In such an embodiment, up to four different UL TX beams may be configured and selected from the SRI field in the DCI. Because the UE may transmit with only a single TX beam in PUSCH, if each SRS resource is configured with a different spatialRelationInfo, only one of the SRS resources may be used and the transmission rank may be limited to 1. To support up to rank 2, only two spatialRelationInfos may be configured for 4 SRS resources. As may be appreciated, the tradeoff between flexible UL TX beams and transmission rank may limit the use of multiple UL TX beams in PUSCH.

[0052] In some embodiments, MIMO can support PUSCH transmission for multiple TRPs. In some embodiments, separate UL TX beams can be configured and used to send PUSCH to different TRPs. In such an embodiment, it can be transparent for PUSCH to be sent to different TRPs at different locations. In addition, more UL TX beams can be used to support multi-TRP PUSCH transmission. In various embodiments, the number of available TX beams can be limited. In some embodiments, multiple UL TX beams can be supported to support multi-TRP PUSCH transmission.

[0053] In certain embodiments, such as for codebook-based PUSCH and non-codebook-based PUSCH, the gNB may have limited dynamic changes to the UL TX beam compared to PDSCH. In various embodiments, to support multi-beam communications, such as to support transmissions to multiple TRPs, a flexible UL beam indication scheme for PUSCH may be used. In various embodiments, the UL TX beam for PUSCH for a UE in codebook-based transmission may be changed dynamically.

[0054] In some embodiments, in order to implement flexible UL TX beams for PUSCH, the UL-TCI field can be used in the DCI format to dynamically indicate the TX beam used for codebook-based PUSCH transmission. In some embodiments, if UL-TCI is enabled in the DCI format for scheduling PUSCH, multiple (e.g., M) UL-TCI states can be configured for the UE in the BWP of the cell through RRC. In such an embodiment, each UL-TCI state can be associated with an RS to be used as a spatial domain TX filter for the UL TX beam. The RS can be a DL CSI-RS, a DL SSB, or a UL SRS. An example of a UL SRS can be an SRS resource for beam management. Among the M UL-TCI states, a subset of the M UL-TCI states can be activated for the UE with MAC-CE information for use at any time. In various embodiments, a K-bit UL-TCI field (e.g., K=3) can be part of a DCI format (e.g., DCI format 0_1 ​​or 0_2) to indicate the UL TX beam that the UE should use for transmission. In such an embodiment, up to 2 KUL-TCI states may be mapped to UL-TCI code points in the DCI. In various embodiments, if the UE receives a DCI format (e.g., DCI format 0_1 ​​or 0_2) with a UL_TCI field indicating an activated UL-TCI state, the UE may apply the same spatial domain TX filter of the UL beam indicated by the UL-TCI state (e.g., as defined in the associated DL RS or UL RS) to the PUSCH transmission. In some embodiments, although the SRS resource indicated by the SRI field of the same DCI may have its UL spatialRelationInfo configured in the RRC, the spatial domain TX filter indicated by the UL-TCI field may be used instead. In such an embodiment, the precoder indicated by the TPMI field of the DCI may be applied to the SRS port. In certain embodiments, if the UL-TCI field of the DCI points to a UL-TCI state that has not been activated by a MAC CE, the TX spatial filter of the SRS resource as configured in its spatialRelationInfo may be used. In various embodiments, the default TX beam usage (e.g., falling back to spatialRelationInfo of SRS if UL-TCI state is not activated by MAC-CE) may be achieved by two methods: 1) if the gNB indicates a UL-TCI codepoint in the DCI that is not defined or deactivated by MAC-CE, the UE may use the spatialRelationInfo of the SRS resource indicated by the SRI field as the UL TX spatial filter; or 2) one of the UL-TCI codepoints (e.g., such as 0x7) may be reserved for the gNB to signal the UE to use the spatialRelationInfo of the SRS resource indicated by the SRI field as the UL TX spatial filter - the UE is not expected to receive a UL-TCI field in the DCI that points to a codepoint that is neither activated by MAC-CE nor a reserved value (e.g., 0x7).

[0055] In some embodiments, if an SRS resource with usage=codebook is not configured with spatialRelationInfo, the UE may use a spatial filter for receiving a PDCCH carrying DCI instead of its spatialRelationInfo if a PUSCH is transmitted.

[0056] In various embodiments, if an SRS resource with usage=codebook is not configured with spatialRelationinfo, then if a PUSCH is transmitted, the UE replaces its spatialRelationinfo with the spatial filter it used to receive the latest PDCCH from CORESET0 or the CORESET with the lowest ID.

[0057] Figure 4 4 is a schematic block diagram of a system 400 illustrating one embodiment of the configuration of UL-TCI states. The system 400 includes a first TRP 402 ("TRP1"), a second TRP 404 ("TRP2"), and a UE 406. The first TRP 402 communicates with the UE 406 via a first communication 408, and the second TRP 404 communicates with the UE 406 via a second communication 410. The first communication 408 can configure one or more of the following UL-TCI states: SRS1, SRS2, CSI-RS1, and CSI-RS2. The second communication 410 can configure one or more of the following UL-TCI states: SRS3, SRS4, CSI-RS3, and CSI-RS4.

[0058] exist Figure 4 There are a total of 8 DL and UL TCI states configured in RRC. Specifically, there are two CORESETPoolIndex (0 and 1) configured for the CORESET transmitted from TRP1 and TRP2. These CORESETPoolIndex are used to distinguish the CORESET transmitted from the TRP to schedule PUSCH transmission. In addition, the PDCCH transmission sent from TRP1 uses the CORESET with CORESETPoolIndex=0, and the PDCCH transmission sent from TRP2 uses the CORESET with CORESETPoolIndex=1. In addition, PUSCH is configured with txConfig=codebook. In addition, in SRS-Config, the first SRS resource set includes two SRS resources: {SRS1, SRS3}, where usage=codebook. SRS1 and SRS3 are configured with spatialRelationInfo1 and spatialRelationInfo3, respectively. In addition, there are two SRS resource sets, each SRS resource set includes one SRS resource: {SRS2}, {SRS4}, where usage = beamManagement. In addition, there are four CSI-RS resources {CSI-RS1, CSI-RS2, CSI-RS3, CSI-RS4}. In addition, the RRC configuration of UL-TCI states 0 to 5 is configured with the following RS: {UL-TCI-State0: CSI-RS1}, {UL-TCI-State1: CSI-RS2}, {UL-TCI-State2: CSI-RS3}, {UL-TCI-State3: CSI-RS4}, {UL-TCI-State4: SRS2}, {UL-TCI-State5: SRS4}.

[0059] In some embodiments, there are two modes for scheduling PUSCH. In the first mode, PUSCH can be scheduled individually by each TRP and sent to the scheduling TRP through the corresponding UL beam, and in the second mode, PUSCH can be scheduled by any TRP and sent to any TRP. The first mode can be applied if the TRPs are connected through a non-ideal backhaul and each TRP schedules its own PUSCH transmission. The second mode can be applied if the TRPs are connected with an ideal backhaul and the scheduling TRP dynamically decides to send PUSCH transmissions to any TRP, multiple TRPs, or all TRPs.

[0060] In certain embodiments of the first mode, each TRP schedules its own PUSCH transmission with its own DCI.The CORESETs transmitted by TRP1 and TRP2 may be configured with CORESETPOOLIndex0 (eg, as shown in Table 1) and CORESETPOOLIndex1 (eg, as shown in Table 2).

[0061] In various embodiments, a UL-TCI state set may be defined for the UE in the RRC. For each CORESETPOOLIndex, the gNB sends a MAC-CE message (e.g., an activation message) to the UE to activate the UL-TCI state set. The MAC-CE message includes a bit indicating the CORESETPOOLIndex to which it corresponds. After the UE receives the new MAC-CE message, the UE overwrites the previous setting.

[0062] Based on the received MAC-CE information, the UE 406 is configured with the UL-TCI states shown in Table 1 for CORESETPOOLIndex0, and is configured with the UL-TCI states shown in Table 2 for CORESETPOOLIndex1.

[0063] Table 1

[0064] UL-TCI codepoint for CORESETPOOLIndex0 UL-TCI Status 0 CSI-RS1 1 CSI-RS2 2 SRS2 3-7 Not configured

[0065] Table 2

[0066] UL-TCI codepoint for CORESETPOOLIndex1 UL-TCI Status 0 CSI-RS3 1 CSI-RS4 2 SRS4 3-7 Not configured

[0067] In some embodiments of the first mode, if TRP1 sends a DCI format (e.g., DCI format 0_1 ​​or 0_2) to UE 406 using a CORESET configured with CORESETPOOLIndex0, then if the UL-TCI field in the DCI is 0, 1, or 2, UE 406 uses the spatial transmission filter corresponding to CSI-RS1, CSI-RS2, and / or SRS2 to send PUSCH transmission. Otherwise, UE 406 uses the spatial transmission filter corresponding to the spatialRelationInfo of the SRS resource indicated by the SRI field for transmission. If SRI=0, the corresponding SRS resource is SRS1, and spatialRelationInfo1 is used as the spatial transmission filter for PUSCH transmission.

[0068] In various embodiments of the first mode, if TRP2 sends a DCI format (e.g., DCI format 0_1 ​​or 0_2) to UE 406 using a CORESET configured with CORESETPOOLIndex1, then if the UL-TCI field in the DCI is 0, 1, or 2, UE 406 uses a spatial transmission filter corresponding to CSI-RS3, CSI-RS4, and / or SRS4 to send PUSCH transmission. Otherwise, UE 406 uses a spatial transmission filter corresponding to the spatialRelationInfo of the SRS resource indicated by the SRI field for transmission. If SRI=1, the corresponding SRS resource is SRS3, and spatialRelationInfo3 is used as the spatial transmission filter for PUSCH transmission.

[0069] In certain embodiments of the first mode, the UE 406 uses the spatialRelationInfo of the SRS resource indicated by the SRI field only when the UL-TCI field in the DCI is not configured (e.g., 0x3, 0x4, 0x5, 0x6, 0x7) or is configured with a predetermined value (e.g., 0x7). In such an embodiment, if the CORESET transmitting the DCI has a CORESETPOOLIndex configured as CORESETPOOLIndex0 or CORESETPOOLIndex1, respectively, the UE 406 uses spatialRelationInfo1 or spatialRelationInfo3 as the spatial transmission filter for PUSCH transmission.

[0070] In some embodiments of the second mode, a single TRP transmits all PDCCH transmissions to the UE 406. The CORESETs carrying the PDCCH transmissions are either not configured with a CORESETPOOLIndex or are all configured with a CORESETPOOLIndex0.

[0071] In one example, only a single UL-TCI state set is activated through MAC-CE information for UE 406. Table 3 shows an example of UL-TCI code points activated by MAC-CE. Some of the UL-TCI code points (2 and 3) have 2 UL spatial relationships represented by 2 CSI-RS resources.

[0072] Table 3

[0073] UL-TCI Code Points UL-TCI Status 0 CSI-RS1 1 CSI-RS2 2 CSI-RS3, CSI-RS4 3 CSI-RS5, CSI-RS4 4 SRS2 5 SRS4 6-7 Not configured

[0074] In various embodiments, if UE 406 receives DCI with UL-TCI=1, UE 406 may use the spatial domain filter used by UE 406 to receive CSI-RS2 as its spatial domain transmission filter for PUSCH transmission. PUSCH may be sent to TRP1. If UE 406 receives DCI with UL-TCI=3, UE 406 transmits PUSCH using two UL spatial relationships (CSI-RS5, CSI-RS6). The DCI scheduling PUSCH contains information on how to use two UL spatial relationships to transmit to both TRP1 and TRP2, CSI-RS5 is used as the first spatial relationship, and CSI-RS6 is used as the second spatial relationship. If UE 406 receives DCI with UL-TCI=5, UE 406 may use the spatial domain transmission filter of SRS4 to transmit PUSCH transmission to TRP2. In certain embodiments, if a DCI with UL-TCI=7 and SRI=0 is received, the UE 406 transmits a PUSCH transmission with the spatial domain transmission filter of spatialRelationInfo1. In some embodiments, if a DCI with UL-TCI=7 and SRI=1 is received, the UE 406 transmits a PUSCH transmission with the spatial domain transmission filter of spatialRelationInfo3. In various embodiments, if a DCI with UL-TCI=7 and SRI=1 is received, and the spatialRelationInfo for SRS3 is not configured, the UE 406 transmits a PUSCH transmission with the RX filter that the UE 406 uses for the CORESET for which the UE 406 received the DCI. In this example, since the DCI is transmitted from TRP1, the PUSCH transmission is also sent to TRP1.

[0075] In various embodiments, the UL-TCI may define one, two, or more UL spatial relations. Each UL spatial relation may correspond to a spatial domain transmission filter. For example, the UL-TCI may define a spatial domain transmission filter for the UE 406 to use for transmission to both TRP1 (e.g., a portion of the first communication 408) and TRP2 (e.g., a portion of the second communication 410).

[0076] In some embodiments, UE 406 may take time to prepare the TX beam for PUSCH transmission. For a UE equipped with more than one panel, if UE 406 needs to switch to another antenna panel to transmit with a new beam, the switching time may be longer than if it does not have to switch to another antenna panel. For example, let T D is the time from the last symbol of the DCI scheduling the PUSCH transmission to the first symbol of the PUSCH, as determined from the time domain resource allocation field in the DCI, and let T S is the time required for UE 406 to switch the transmission beam. In such an example, T can be defined according to the OFDM symbol duration of each subcarrier spacing used for FR2. S One or two values ​​of as the UE capability to transmit to one or more TRPs from the UE. If two values ​​are provided in the UE capability, the first value may be the time required for the UE 406 to prepare the TX beam without switching to a different antenna panel (or SRS group), and the second value may be the time required for the UE 406 to prepare the TX beam and switch to a different antenna panel. If a single value is provided in the UE capability, the single value is applied with or without antenna panel switching. In some embodiments, the UE 406 uses the TRP for TRP based on the reported capability and the scheduling DCI. S If T D <T S , the UE 406 may not have enough time to prepare the spatial transmission filter indicated by the UL-TCI. If this happens, the UE 406 may apply the spatialRelationInfo of the SRS resource indicated by the SRI field in the DCI even if the UL-TCI field indicates a valid (e.g., activated) UL-TCI state. D ≥T S , UE 406 may apply the spatial domain transmission filter indicated by the UL-TCI field, the SRS resources, or the PDCCH carrying the DCI.

[0077] Figure 5is a schematic flow chart illustrating one embodiment of a method 500 for configuring an uplink transmission configuration indication state. In some embodiments, the method 500 is performed by an apparatus such as the remote unit 102. In certain embodiments, the method 500 may be performed by a processor executing program code, such as a microcontroller, a microprocessor, a CPU, a GPU, an auxiliary processing unit, an FPGA, etc.

[0078] The method 500 may include receiving 502 a radio resource control message at a user equipment (e.g., remote unit 102) configuring a set of uplink transmission configuration indication states, wherein each uplink transmission configuration indication state in the set of uplink transmission configuration indication states defines at least one uplink spatial relationship, wherein each uplink spatial relationship in the at least one uplink spatial relationship corresponds to a spatial domain transmission filter, the spatial domain transmission filter corresponding to a channel state information reference signal, a synchronization signal block, or a sounding reference signal. In some embodiments, the method 500 may include receiving 504 a media access control control unit information, the media access control control unit information including information activating a subset of the set of uplink transmission configuration indication states, the subset of the set of uplink transmission configuration indication states for use in an uplink transmission configuration indication field of downlink control information for scheduling codebook-based physical uplink shared channel transmissions. In some embodiments, the method 500 may include receiving 506 downlink control information having an uplink transmission configuration indication field indicating at least one uplink spatial relationship for the user equipment to use for codebook-based physical uplink shared channel transmissions. In various embodiments, the method 500 may include transmitting 508 a codebook-based physical uplink shared channel transmission having at least one uplink spatial relationship indicated by the uplink transmission configuration indication field in the downlink control information.

[0079] In certain embodiments, the method 500 further includes: if the uplink transmission configuration indication field points to an uplink transmission configuration indication code point that is not activated by the media access control control unit information or a reserved uplink transmission configuration indication code point, then using the spatial relationship information for the sounding reference signal resource configuration indicated by the sounding reference signal resource index field of the downlink control information. In some embodiments, the method 500 further includes: if the spatial relationship information for the sounding reference signal resource is not configured, then using the spatial domain filter for receiving the downlink control information for transmitting the codebook-based physical uplink shared channel transmission. In various embodiments, the method 500 further includes: determining the spatial domain filter for the codebook-based physical uplink shared channel transmission based on the control resource set pool index of the control resource set for receiving the downlink control information.

[0080] In one embodiment, the method 500 further includes: if the spatial relationship information for the sounding reference signal resource is not configured, using a spatial domain filter for receiving a control resource set. In some embodiments, the method 500 further includes: if the spatial relationship information for the sounding reference signal resource is not configured, using a spatial domain filter for receiving a control resource set with a lowest control resource set identifier configured on the carrier to transmit a codebook-based physical uplink shared channel transmission. In some embodiments, the media access control control unit information separately activates an uplink transmission configuration indication for each control resource set pool index in a plurality of control resource set pool indexes.

[0081] In various embodiments, the method 500 further includes: determining an uplink transmission configuration indication state to be used based on an uplink transmission configuration indication field and a control resource set pool index of a control resource set for receiving downlink control information. In one embodiment, the method 500 further includes: reporting a capability report of the user equipment to a network element, wherein the capability report includes at least one time threshold for preparing at least one uplink spatial relationship for a codebook-based physical uplink shared channel transmission. In certain embodiments, the method 500 further includes determining at least one time threshold based on the downlink control information. In some embodiments, the method 500 further includes: in response to a duration between the downlink control information and the codebook-based physical uplink shared channel transmission being less than at least one time threshold, using spatial relationship information for a sounding reference signal resource configuration indicated by a sounding reference signal resource index field of the downlink control information.

[0082] Figure 6 is a schematic flow chart illustrating one embodiment of a method 600 for configuring an uplink transmission configuration indication state. In some embodiments, the method 600 is performed by an apparatus such as the network unit 104. In some embodiments, the method 600 may be performed by a processor executing program code, such as a microcontroller, a microprocessor, a CPU, a GPU, an auxiliary processing unit, an FPGA, etc.

[0083] The method 600 may include transmitting 602 a radio resource control message configuring a set of uplink transmission configuration indication states, wherein each uplink transmission configuration indication state in the set of uplink transmission configuration indication states defines at least one uplink spatial relationship, wherein each uplink spatial relationship in the at least one uplink spatial relationship corresponds to a spatial domain transmission filter, and the spatial domain transmission filter corresponds to a channel state information reference signal, a synchronization signal block, or a sounding reference signal. In some embodiments, the method 600 may include transmitting 604 a media access control control unit information, the media access control control unit information including information to activate a subset of the set of uplink transmission configuration indication states, the subset of the set of uplink transmission configuration indication states for use in an uplink transmission configuration indication field of downlink control information for scheduling codebook-based physical uplink shared channel transmissions. In some embodiments, the method 600 may include transmitting 606 a downlink control information having an uplink transmission configuration indication field, the uplink transmission configuration indication field indicating at least one uplink spatial relationship for a user equipment (e.g., a remote unit 102) to use for codebook-based physical uplink shared channel transmissions. In various embodiments, the method 600 may include receiving 608 a codebook-based physical uplink shared channel transmission having at least one uplink spatial relationship indicated by an uplink transmission configuration indication field in the downlink control information.

[0084] In certain embodiments, if the uplink transmission configuration indication field points to an uplink transmission configuration indication code point that is not activated by the media access control control unit information or a reserved uplink transmission configuration indication code point, the user equipment uses the spatial relationship information for the sounding reference signal resource configuration indicated by the sounding reference signal resource index field of the downlink control information. In some embodiments, if the spatial relationship information for the sounding reference signal resource is not configured, the user equipment uses the spatial domain filter received for transmitting the downlink control information for the codebook-based physical uplink shared channel transmission. In various embodiments, the user equipment determines the spatial domain filter for the codebook-based physical uplink shared channel transmission based on the control resource set pool index of the control resource set used to receive the downlink control information.

[0085] In one embodiment, if the spatial relationship information for the sounding reference signal resource is not configured, the user equipment uses a spatial domain filter for receiving a control resource set. In certain embodiments, if the spatial relationship information for the sounding reference signal resource is not configured, the user equipment uses a spatial domain filter for receiving a control resource set with a lowest control resource set identifier configured on the carrier to transmit a codebook-based physical uplink shared channel transmission. In some embodiments, the media access control control unit information separately activates an uplink transmission configuration indication for each control resource set pool index in a plurality of control resource set pool indexes.

[0086] In various embodiments, the user equipment determines the uplink transmission configuration indication state to be used based on the uplink transmission configuration indication field and the control resource set pool index of the control resource set used to receive the downlink control information. In one embodiment, the method 600 further includes: receiving a capability report of the user equipment, wherein the capability report includes at least one time threshold for preparing at least one uplink spatial relationship for a codebook-based physical uplink shared channel transmission. In certain embodiments, the user equipment determines at least one time threshold based on the downlink control information. In some embodiments, in response to a duration between the downlink control information and the codebook-based physical uplink shared channel transmission being less than at least one time threshold, the user equipment uses the spatial relationship information for the sounding reference signal resource configuration indicated by the sounding reference signal resource index field of the downlink control information.

[0087] In one embodiment, a method includes: receiving, at a user equipment, a radio resource control message configuring an uplink transmission configuration indication state set, wherein each uplink transmission configuration indication state in the uplink transmission configuration indication state set defines at least one uplink spatial relationship, wherein each uplink spatial relationship in the at least one uplink spatial relationship corresponds to a spatial domain transmission filter, and the spatial domain transmission filter corresponds to a channel state information reference signal, a synchronization signal block, or a sounding reference signal; receiving medium access control control unit information, the medium access control control unit information including information activating a subset of the uplink transmission configuration indication state set, the subset of the uplink transmission configuration indication state set is used in an uplink transmission configuration indication field of downlink control information for scheduling codebook-based physical uplink shared channel transmission; receiving downlink control information having an uplink transmission configuration indication field, the uplink transmission configuration indication field indicating at least one uplink spatial relationship for the user equipment to use for codebook-based physical uplink shared channel transmission; and transmitting a codebook-based physical uplink shared channel transmission having at least one uplink spatial relationship indicated by the uplink transmission configuration indication field in the downlink control information.

[0088] In certain embodiments, the method further includes: if the uplink transmission configuration indication field points to an uplink transmission configuration indication code point that is not activated by the media access control control unit information or a reserved uplink transmission configuration indication code point, then using the spatial relationship information for the sounding reference signal resource configuration indicated by the sounding reference signal resource index field of the downlink control information.

[0089] In some embodiments, the method further comprises: if the spatial relation information for the sounding reference signal resource is not configured, using a spatial domain filter received for transmitting downlink control information for codebook based physical uplink shared channel transmission.

[0090] In various embodiments, the method further comprises determining a spatial domain filter for codebook based physical uplink shared channel transmission based on a control resource set pool index of a control resource set for receiving downlink control information.

[0091] In one embodiment, the method further comprises: if the spatial relationship information for the sounding reference signal resource is not configured, using a spatial domain filter for receiving the set of control resources.

[0092] In certain embodiments, the method further comprises: if the spatial relation information for the sounding reference signal resource is not configured, using a spatial domain filter for transmitting a codebook-based physical uplink shared channel transmission using a control resource set with a lowest control resource set identifier configured on the carrier.

[0093] In some embodiments, the MAC control element information individually activates an uplink transmission configuration indication for each control resource set pool index of a plurality of control resource set pool indexes.

[0094] In various embodiments, the method further comprises determining an uplink transmission configuration indication state to be used based on the uplink transmission configuration indication field and a control resource set pool index of a control resource set used to receive downlink control information.

[0095] In one embodiment, the method further comprises: reporting a capability report of the user equipment to a network element, wherein the capability report comprises at least one time threshold for preparing at least one uplink spatial relation for codebook based physical uplink shared channel transmission.

[0096] In certain embodiments, the method further comprises determining at least one time threshold based on the downlink control information.

[0097] In some embodiments, the method further comprises: in response to a duration between the downlink control information and the codebook-based physical uplink shared channel transmission being less than at least one time threshold, using spatial relationship information for a sounding reference signal resource configuration indicated by a sounding reference signal resource index field of the downlink control information.

[0098] In one embodiment, an apparatus including a user equipment comprises: a receiver, configured to: receive a radio resource control message configuring an uplink transmission configuration indication state set, wherein each uplink transmission configuration indication state in the uplink transmission configuration indication state set defines at least one uplink spatial relationship, wherein each uplink spatial relationship in the at least one uplink spatial relationship corresponds to a spatial domain transmission filter, and the spatial domain transmission filter corresponds to a channel state information reference signal, a synchronization signal block, or a sounding reference signal; receive media access control control unit information, the media access control control unit information comprising activating the uplink transmission configuration indication state The invention relates to a method for transmitting a physical uplink shared channel transmission based on a codebook and a transmitter, wherein the transmitter transmits a physical uplink shared channel transmission based on a codebook and the transmitter transmits the ...

[0099] In certain embodiments, the apparatus further comprises a processor which uses spatial relationship information for a sounding reference signal resource configuration indicated by a sounding reference signal resource index field of the downlink control information if the uplink transmission configuration indication field points to an uplink transmission configuration indication code point that is not activated by the media access control control unit information or a reserved uplink transmission configuration indication code point.

[0100] In some embodiments, if the spatial relation information for the sounding reference signal resource is not configured, the processor uses a spatial domain filter received for transmitting downlink control information for a codebook-based physical uplink shared channel transmission.

[0101] In various embodiments, the processor determines a spatial domain filter for codebook based physical uplink shared channel transmission based on a control resource set pool index of a control resource set used to receive downlink control information.

[0102] In one embodiment, if the spatial relationship information for the sounding reference signal resource is not configured, the processor uses a spatial domain filter for receiving the set of control resources.

[0103] In certain embodiments, if spatial relation information for the sounding reference signal resource is not configured, the processor uses a spatial domain filter that receives a control resource set with a lowest control resource set identifier configured on the carrier to transmit a codebook-based physical uplink shared channel transmission.

[0104] In some embodiments, the MAC control element information individually activates an uplink transmission configuration indication for each control resource set pool index of a plurality of control resource set pool indexes.

[0105] In various embodiments, the apparatus further includes a processor that determines an uplink transmission configuration indication state to use based on the uplink transmission configuration indication field and a control resource set pool index of a control resource set used to receive downlink control information.

[0106] In one embodiment, the transmitter reports a capability report of the user equipment to the network element, wherein the capability report comprises at least one time threshold for preparing at least one uplink spatial relation for codebook based physical uplink shared channel transmission.

[0107] In certain embodiments, the apparatus further includes a processor that determines at least one time threshold based on the downlink control information.

[0108] In some embodiments, the processor uses spatial relationship information for a sounding reference signal resource configuration indicated by a sounding reference signal resource index field of the downlink control information in response to a duration between the downlink control information and a codebook-based physical uplink shared channel transmission being less than at least one time threshold.

[0109] In one embodiment, a method includes: transmitting a radio resource control message configuring an uplink transmission configuration indication state set, wherein each uplink transmission configuration indication state in the uplink transmission configuration indication state set defines at least one uplink spatial relationship, wherein each uplink spatial relationship in the at least one uplink spatial relationship corresponds to a spatial domain transmission filter, and the spatial domain transmission filter corresponds to a channel state information reference signal, a synchronization signal block, or a sounding reference signal; transmitting medium access control control unit information, the medium access control control unit information including information activating a subset of the uplink transmission configuration indication state set, the subset of the uplink transmission configuration indication state set is used in an uplink transmission configuration indication field of downlink control information for scheduling codebook-based physical uplink shared channel transmission; transmitting downlink control information having an uplink transmission configuration indication field, the uplink transmission configuration indication field indicating at least one uplink spatial relationship for user equipment to use for codebook-based physical uplink shared channel transmission; and receiving codebook-based physical uplink shared channel transmission having at least one uplink spatial relationship indicated by the uplink transmission configuration indication field in the downlink control information.

[0110] In certain embodiments, if the uplink transmission configuration indication field points to an uplink transmission configuration indication code point that is not activated by the media access control control unit information or a reserved uplink transmission configuration indication code point, the user equipment uses the spatial relationship information for the sounding reference signal resource configuration indicated by the sounding reference signal resource index field of the downlink control information.

[0111] In some embodiments, if the spatial relation information for the sounding reference signal resource is not configured, the user equipment uses a spatial domain filter received for transmitting downlink control information for codebook-based physical uplink shared channel transmission.

[0112] In various embodiments, the user equipment determines a spatial domain filter for codebook based physical uplink shared channel transmission based on a control resource set pool index of a control resource set used to receive downlink control information.

[0113] In one embodiment, if the spatial relationship information for the sounding reference signal resource is not configured, the user equipment uses a spatial domain filter for receiving the control resource set.

[0114] In certain embodiments, if spatial relation information for sounding reference signal resources is not configured, the user equipment uses a control resource set with a lowest control resource set identifier configured on a carrier to transmit a spatial domain filter for codebook-based physical uplink shared channel transmission.

[0115] In some embodiments, the MAC control element information individually activates an uplink transmission configuration indication for each control resource set pool index of a plurality of control resource set pool indexes.

[0116] In various embodiments, the user equipment determines the uplink transmission configuration indication state to be used based on the uplink transmission configuration indication field and a control resource set pool index of a control resource set used to receive downlink control information.

[0117] In one embodiment, the method further comprises: receiving a capability report of the user equipment, wherein the capability report comprises at least one time threshold for preparing at least one uplink spatial relation for codebook based physical uplink shared channel transmission.

[0118] In some embodiments, the user equipment determines at least one time threshold based on downlink control information.

[0119] In some embodiments, in response to a duration between downlink control information and codebook-based physical uplink shared channel transmission being less than at least one time threshold, the user equipment uses spatial relationship information for a sounding reference signal resource configuration indicated by a sounding reference signal resource index field of the downlink control information.

[0120] In one embodiment, an apparatus includes: a transmitter, configured to: transmit a radio resource control message configuring an uplink transmission configuration indication state set, wherein each uplink transmission configuration indication state in the uplink transmission configuration indication state set defines at least one uplink spatial relationship, wherein each uplink spatial relationship in the at least one uplink spatial relationship corresponds to a spatial domain transmission filter, and the spatial domain transmission filter corresponds to a channel state information reference signal, a synchronization signal block, or a sounding reference signal; transmit media access control control unit information, the media access control control unit information including activating a subset of the uplink transmission configuration indication state set The invention relates to a method for transmitting a physical uplink shared channel transmission based on a codebook and a receiver, wherein the receiver receives the physical uplink shared channel transmission based on the codebook and ...

[0121] In certain embodiments, if the uplink transmission configuration indication field points to an uplink transmission configuration indication code point that is not activated by the media access control control unit information or a reserved uplink transmission configuration indication code point, the user equipment uses the spatial relationship information for the sounding reference signal resource configuration indicated by the sounding reference signal resource index field of the downlink control information.

[0122] In some embodiments, if the spatial relation information for the sounding reference signal resource is not configured, the user equipment uses a spatial domain filter received for transmitting downlink control information for codebook-based physical uplink shared channel transmission.

[0123] In various embodiments, the user equipment determines a spatial domain filter for codebook based physical uplink shared channel transmission based on a control resource set pool index of a control resource set used to receive downlink control information.

[0124] In one embodiment, if the spatial relationship information for the sounding reference signal resource is not configured, the user equipment uses a spatial domain filter for receiving the control resource set.

[0125] In certain embodiments, if spatial relation information for sounding reference signal resources is not configured, the user equipment uses a control resource set with a lowest control resource set identifier configured on a carrier to transmit a spatial domain filter for codebook-based physical uplink shared channel transmission.

[0126] In some embodiments, the MAC control element information individually activates an uplink transmission configuration indication for each control resource set pool index of a plurality of control resource set pool indexes.

[0127] In various embodiments, the user equipment determines the uplink transmission configuration indication state to be used based on the uplink transmission configuration indication field and a control resource set pool index of a control resource set used to receive downlink control information.

[0128] In one embodiment, the receiver receives a capability report of a user equipment, wherein the capability report comprises at least one time threshold for preparing at least one uplink spatial relation for codebook based physical uplink shared channel transmission.

[0129] In some embodiments, the user equipment determines at least one time threshold based on downlink control information.

[0130] In some embodiments, in response to a duration between the downlink control information and the codebook-based physical uplink shared channel transmission being less than the at least one time threshold, the user equipment uses spatial relationship information for a sounding reference signal resource configuration indicated by a sounding reference signal resource index field of the downlink control information.

[0131] Embodiments may be practiced in other specific forms. The described embodiments should be considered in all respects to be illustrative only and not restrictive. Therefore, the scope of the present invention is indicated by the appended claims rather than the preceding description. All changes within the meaning and equivalent range of the claims are included within their scope.

Claims

1. A method for configuring an uplink transmission configuration indication state, comprising: Receiving, at a user equipment, a radio resource control message configuring a set of uplink transmission configuration indication states, wherein each uplink transmission configuration indication state in the set of uplink transmission configuration indication states defines at least one uplink spatial relationship, wherein each uplink spatial relationship in the at least one uplink spatial relationship corresponds to a spatial domain transmission filter, and the spatial domain transmission filter corresponds to a channel state information reference signal, a synchronization signal block, or a sounding reference signal; receiving medium access control control unit information, the medium access control control unit information including information for activating a subset of the uplink transmission configuration indication state set, the subset of the uplink transmission configuration indication state set being used in an uplink transmission configuration indication field of downlink control information for scheduling codebook-based physical uplink shared channel transmission; receiving the downlink control information having the uplink transmission configuration indication field, the uplink transmission configuration indication field indicating the at least one uplink spatial relationship for the user equipment to use for the codebook-based physical uplink shared channel transmission; and The codebook-based physical uplink shared channel transmission is transmitted with the at least one uplink spatial relationship indicated by the uplink transmission configuration indication field in the downlink control information.

2. The method according to claim 1, further comprising: If the uplink transmission configuration indication field points to an uplink transmission configuration indication code point that is not activated by the media access control control unit information or a reserved uplink transmission configuration indication code point, the spatial relationship information for the sounding reference signal resource configuration indicated by the sounding reference signal resource index field of the downlink control information is used.

3. The method according to claim 2, further comprising: If the spatial relation information for the sounding reference signal resource is not configured, a spatial domain filter is used to receive the downlink control information for transmitting the codebook-based physical uplink shared channel transmission.

4. The method according to claim 3, further comprising: The spatial domain filter for the codebook-based physical uplink shared channel transmission is determined based on a control resource set pool index of a control resource set used to receive the downlink control information.

5. The method according to claim 2, further comprising: If the spatial relationship information for the sounding reference signal resource is not configured, a spatial domain filter of a reception control resource set is used.

6. The method according to claim 2, further comprising: If the spatial relation information for the sounding reference signal resource is not configured, a spatial domain filter is used to transmit the codebook-based physical uplink shared channel transmission using a control resource set with a lowest control resource set identifier configured on a carrier.

7. The method according to claim 1, wherein: The media access control element information individually activates an uplink transmission configuration indication for each control resource set pool index in a plurality of control resource set pool indexes.

8. The method according to claim 7, further comprising: An uplink transmission configuration indication state to be used is determined based on an uplink transmission configuration indication field and the control resource set pool index of the control resource set used to receive the downlink control information.

9. The method according to claim 1, further comprising: and reporting a capability report of the user equipment to a network element, wherein the capability report comprises at least one time threshold for preparing the at least one uplink spatial relation for the codebook based physical uplink shared channel transmission.

10. The method according to claim 9, further comprising: The at least one time threshold is determined based on the downlink control information.

11. The method according to claim 10, further comprising: In response to a duration between the downlink control information and the codebook-based physical uplink shared channel transmission being less than the at least one time threshold, using spatial relationship information for a sounding reference signal resource configuration indicated by a sounding reference signal resource index field of the downlink control information.

12. An apparatus comprising a user equipment, the apparatus comprising: A receiver, the receiver: Receiving a radio resource control message configuring an uplink transmission configuration indication state set, wherein each uplink transmission configuration indication state in the uplink transmission configuration indication state set defines at least one uplink spatial relationship, wherein each uplink spatial relationship in the at least one uplink spatial relationship corresponds to a spatial domain transmission filter, and the spatial domain transmission filter corresponds to a channel state information reference signal, a synchronization signal block, or a sounding reference signal; receiving medium access control control unit information, the medium access control control unit information including information for activating a subset of the uplink transmission configuration indication state set, the subset of the uplink transmission configuration indication state set being used in an uplink transmission configuration indication field of downlink control information for scheduling codebook-based physical uplink shared channel transmission; and receiving the downlink control information having the uplink transmission configuration indication field, the uplink transmission configuration indication field indicating the at least one uplink spatial relationship for the user equipment to use for the codebook-based physical uplink shared channel transmission; and A transmitter that transmits the codebook-based physical uplink shared channel transmission with the at least one uplink spatial relationship indicated by the uplink transmission configuration indication field in the downlink control information.

13. The apparatus according to claim 12 further comprises a processor, wherein if the uplink transmission configuration indication field points to an uplink transmission configuration indication code point that is not activated by the media access control control unit information or a reserved uplink transmission configuration indication code point, the processor uses the spatial relationship information of the sounding reference signal resource configuration indicated by the sounding reference signal resource index field of the downlink control information.

14. The device according to claim 13, wherein: If the spatial relation information for the sounding reference signal resource is not configured, the processor uses a spatial domain filter received for transmitting the downlink control information for the codebook-based physical uplink shared channel transmission.

15. The device according to claim 14, wherein: The processor determines the spatial domain filter for the codebook-based physical uplink shared channel transmission based on a control resource set pool index of a control resource set used to receive the downlink control information.

16. The device according to claim 13, wherein: If the spatial relationship information for the sounding reference signal resource is not configured, the processor uses a spatial domain filter to receive a set of control resources.

17. The device according to claim 13, wherein: If the spatial relation information for the sounding reference signal resource is not configured, the processor uses a spatial domain filter that receives a control resource set with a lowest control resource set identifier configured on a carrier to transmit the codebook-based physical uplink shared channel transmission.

18. The device according to claim 12, wherein: The media access control element information individually activates an uplink transmission configuration indication for each control resource set pool index in a plurality of control resource set pool indexes.

19. The apparatus of claim 18, further comprising a processor that determines an uplink transmission configuration indication state to be used based on an uplink transmission configuration indication field and the control resource set pool index of the control resource set used to receive the downlink control information.

20. The device according to claim 12, wherein: The transmitter reports a capability report of the user equipment to a network element, wherein the capability report includes at least one time threshold for preparing the at least one uplink spatial relation for the codebook-based physical uplink shared channel transmission.

21. The apparatus of claim 20, further comprising a processor that determines the at least one time threshold based on the downlink control information.

22. The device according to claim 21, wherein The processor uses spatial relationship information for a sounding reference signal resource configuration indicated by a sounding reference signal resource index field of the downlink control information in response to a duration between the downlink control information and the codebook-based physical uplink shared channel transmission being less than the at least one time threshold.

23. A method for configuring an uplink transmission configuration indication state, comprising: transmitting a radio resource control message configuring an uplink transmission configuration indication state set, wherein each uplink transmission configuration indication state in the uplink transmission configuration indication state set defines at least one uplink spatial relationship, wherein each uplink spatial relationship in the at least one uplink spatial relationship corresponds to a spatial domain transmission filter, and the spatial domain transmission filter corresponds to a channel state information reference signal, a synchronization signal block, or a sounding reference signal; transmitting medium access control control element information, the medium access control control element information comprising information for activating a subset of the uplink transmission configuration indication state set, the subset of the uplink transmission configuration indication state set being used in an uplink transmission configuration indication field of downlink control information for scheduling codebook-based physical uplink shared channel transmission; transmitting the downlink control information having the uplink transmission configuration indication field, the uplink transmission configuration indication field indicating the at least one uplink spatial relationship for user equipment to use for the codebook-based physical uplink shared channel transmission; and The codebook-based physical uplink shared channel transmission is received with the at least one uplink spatial relationship indicated by the uplink transmission configuration indication field in the downlink control information.

24. The method according to claim 23, wherein: If the uplink transmission configuration indication field points to an uplink transmission configuration indication code point that is not activated by the media access control control unit information or a reserved uplink transmission configuration indication code point, the user equipment uses the spatial relationship information for the sounding reference signal resource configuration indicated by the sounding reference signal resource index field of the downlink control information.

25. The method according to claim 24, wherein: If the spatial relationship information for the sounding reference signal resource is not configured, the user equipment uses a spatial domain filter received for transmitting the downlink control information for the codebook-based physical uplink shared channel transmission.

26. The method according to claim 25, wherein: The user equipment determines the spatial domain filter for the codebook-based physical uplink shared channel transmission based on a control resource set pool index of a control resource set used to receive the downlink control information.

27. The method according to claim 24, wherein: If the spatial relationship information for the sounding reference signal resource is not configured, the user equipment uses a spatial domain filter for receiving a set of control resources.

28. The method of claim 24, wherein: If the spatial relationship information for the sounding reference signal resource is not configured, the user equipment uses a control resource set with a lowest control resource set identifier configured on a carrier to transmit the spatial domain filter of the codebook-based physical uplink shared channel transmission.

29. The method of claim 23, wherein: The media access control element information individually activates an uplink transmission configuration indication for each control resource set pool index in a plurality of control resource set pool indexes.

30. The method of claim 29, wherein: The user equipment determines an uplink transmission configuration indication state to be used based on an uplink transmission configuration indication field and the control resource set pool index of the control resource set used to receive the downlink control information.

31. The method of claim 23, further comprising: A capability report of the user equipment is received, wherein the capability report comprises at least one time threshold for preparing the at least one uplink spatial relation for the codebook based physical uplink shared channel transmission.

32. The method according to claim 31, wherein: The user equipment determines the at least one time threshold based on the downlink control information.

33. The method of claim 32, wherein: In response to a duration between the downlink control information and the codebook-based physical uplink shared channel transmission being less than the at least one time threshold, the user equipment uses spatial relationship information for a sounding reference signal resource configuration indicated by a sounding reference signal resource index field of the downlink control information.

34. An apparatus for configuring an uplink transmission configuration indication state, comprising: A transmitter, the transmitter: transmitting a radio resource control message configuring an uplink transmission configuration indication state set, wherein each uplink transmission configuration indication state in the uplink transmission configuration indication state set defines at least one uplink spatial relationship, wherein each uplink spatial relationship in the at least one uplink spatial relationship corresponds to a spatial domain transmission filter, and the spatial domain transmission filter corresponds to a channel state information reference signal, a synchronization signal block, or a sounding reference signal; transmitting medium access control control element information, the medium access control control element information comprising information for activating a subset of the uplink transmission configuration indication state set, the subset of the uplink transmission configuration indication state set being used in an uplink transmission configuration indication field of downlink control information for scheduling codebook-based physical uplink shared channel transmission; and transmitting the downlink control information having the uplink transmission configuration indication field, the uplink transmission configuration indication field indicating the at least one uplink spatial relationship for user equipment to use for the codebook-based physical uplink shared channel transmission; and A receiver is provided for receiving the codebook-based physical uplink shared channel transmission having the at least one uplink spatial relationship indicated by the uplink transmission configuration indication field in the downlink control information.

35. The device according to claim 34, wherein If the uplink transmission configuration indication field points to an uplink transmission configuration indication code point that is not activated by the media access control control unit information or a reserved uplink transmission configuration indication code point, the user equipment uses the spatial relationship information for the sounding reference signal resource configuration indicated by the sounding reference signal resource index field of the downlink control information.

36. The device according to claim 35, wherein If the spatial relationship information for the sounding reference signal resource is not configured, the user equipment uses a spatial domain filter received for transmitting the downlink control information for the codebook-based physical uplink shared channel transmission.

37. The device according to claim 36, wherein The user equipment determines the spatial domain filter for the codebook-based physical uplink shared channel transmission based on a control resource set pool index of a control resource set used to receive the downlink control information.

38. The apparatus of claim 35, wherein: If the spatial relationship information for the sounding reference signal resource is not configured, the user equipment uses a spatial domain filter for receiving a set of control resources.

39. The device according to claim 35, wherein: If the spatial relationship information for the sounding reference signal resource is not configured, the user equipment uses a control resource set with a lowest control resource set identifier configured on a carrier to transmit the spatial domain filter of the codebook-based physical uplink shared channel transmission.

40. The apparatus of claim 34, wherein: The media access control element information individually activates an uplink transmission configuration indication for each control resource set pool index in a plurality of control resource set pool indexes.

41. The device according to claim 40, wherein The user equipment determines an uplink transmission configuration indication state to be used based on an uplink transmission configuration indication field and the control resource set pool index of the control resource set used to receive the downlink control information.

42. The apparatus of claim 34, wherein: The receiver receives a capability report of the user equipment, wherein the capability report comprises at least one time threshold for preparing the at least one uplink spatial relation for the codebook based physical uplink shared channel transmission.

43. The device according to claim 42, wherein: The user equipment determines the at least one time threshold based on the downlink control information.

44. The device according to claim 43, wherein In response to a duration between the downlink control information and the codebook-based physical uplink shared channel transmission being less than the at least one time threshold, the user equipment uses spatial relationship information for a sounding reference signal resource configuration indicated by a sounding reference signal resource index field of the downlink control information.

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