Update detection reference signal spatial relationship information

Abstract

Disclosed are an apparatus, method, and system for updating SRS spatial relationship information. A method includes transmitting first information indicating SRS spatial relationship information for an SRS resource. The SRS spatial relationship information includes: an SRS spatial relationship information identifier; and an SRS spatial relationship information reference signal corresponding to each SRS spatial relationship information identifier. The method includes transmitting second information indicating an update to the SRS spatial relationship information. The second information includes: a serving cell identifier; a bandwidth portion identifier; one or more SRS resource identifiers, one or more SRS resource set identifiers, or a combination thereof; and one or more SRS spatial relationship information identifiers. Each of the one or more SRS resource identifiers corresponds to each of the one or more SRS spatial relationship information identifiers.

Description

Technical Field

[0001] The subject matter disclosed herein relates generally to wireless communications, and more particularly to updating sounding reference signal spatial relationship information. 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 Occupancy (“BO”), Base Station (“BS”), Buffer Status Report (“BSR”), Bandwidth (“BW”), Bandwidth Part (“BWP”), Carrier Aggregation (“CA”), Component Carrier (“CC”), Code Division Multiplexing (“CDM”), Control Element (“CE”), Coordinated Multipoint (“CoMP”), Class of Requirement (“CoR”), Control Resource Set (“CORESET”), Cyclic Prefix (“CP”), Cyclic Prefix OFDM (“CP-OFDM”), 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”), code word (“CW”), downlink assignment index (“DAI”), downlink control information (“DCI”), 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 Multiple Access (“FDMA”), Frequency Range (“FR”), 450 MHz–6000 MHz (“FR1”), 24250 MHz–52600 MHz (“FR2”), Hybrid Automatic Repeat Request (“HARQ”), High Definition Multimedia Interface (“HDMI”), 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"), long term evolution ("LTE"), level of automation ("LoA"), medium access control ("MAC"), modulation and coding scheme ("MCS"), multi-DCI ("M-DCI"),Master Information Block (“MIB”), Multiple Input Multiple Output (“MIMO”), 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”), 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 ("PDN") ), Physical Resource Block ("PRB"), Switched Packet ("PS"), Physical Sidelink Control Channel ("PSCCH"), Physical Sidelink Shared Channel ("PSSCH"), Phase Tracking RS ("PTRS" or "PT-RS"), Physical Uplink Control Channel ("PUCCH"), Physical Uplink Shared Channel ("PUSCH"), Quasi Co-location ("QCL"), Service 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”), Reference Signal (“RS”), Reference Signal Received Power (“RSRP”), Reference Signal Received Quality (“RSRP”), SRQ”), receive (“RX”), single carrier frequency domain spread spectrum (“SC-FDSS”), secondary cell (“SCell”), subcarrier spacing (“SCS”), single DCI (“S-DCI”), service data unit (“SDU”), subscriber identity module (“SIM”), signal-to-interference and noise ratio (“SINR”), side link (“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”), temporary mobile subscriber identity (“TMSI”), transmitted precoding matrix indicator (“TPMI”), transmission reception point (“TRP”), technical standard (“TS”), transmission (“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”), universal subscriber identity module (“USIM”), universal terrestrial radio access network (“UTRAN”), vehicle-to-everything (“V2X”), voice over IP (“VoIP”), access to public land mobile network (“VPLMN”), vehicle RNTI (“V-RNTI”), world 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, the sounding reference signal spatial relationship information may be updated. Summary of the invention

[0004] Methods for updating sounding reference signal spatial relationship information are disclosed. Apparatus and systems also perform the functions of these methods. In one embodiment, the method includes transmitting first information indicating sounding reference signal spatial relationship information for a sounding reference signal resource, wherein the sounding reference signal spatial relationship information includes: a plurality of sounding reference signal spatial relationship information identifiers; and a sounding reference signal spatial relationship information reference signal corresponding to each of the plurality of sounding reference signal spatial relationship information identifiers. In certain embodiments, the method includes transmitting second information indicating an update of the sounding reference signal spatial relationship information for the sounding reference signal resource, wherein the second information includes: a serving cell identifier; a bandwidth portion identifier; one or more sounding reference signal resource identifiers, one or more sounding reference signal resource set identifiers, or a combination thereof; and one or more sounding reference signal spatial relationship information identifiers among a plurality of sounding reference signal spatial relationship information identifiers, wherein each of the one or more sounding reference signal resource identifiers corresponds to each of the one or more sounding reference signal spatial relationship information identifiers.

[0005] A device for updating sounding reference signal spatial relationship information, in one embodiment, comprises: a transmitter: transmitting first information indicating sounding reference signal spatial relationship information for sounding reference signal resources, wherein the sounding reference signal spatial relationship information comprises: a plurality of sounding reference signal spatial relationship information identifiers; and a sounding reference signal spatial relationship information reference signal corresponding to each of the plurality of sounding reference signal spatial relationship information identifiers; and transmitting second information indicating an update of the sounding reference signal spatial relationship information for the sounding reference signal resources, wherein the second information comprises: a serving cell identifier; a bandwidth part identifier; one or more sounding reference signal resource identifiers, one or more sounding reference signal resource set identifiers, or a combination thereof; and one or more sounding reference signal spatial relationship information identifiers among the plurality of sounding reference signal spatial relationship information identifiers, wherein each of the one or more sounding reference signal resource identifiers corresponds to each of the one or more sounding reference signal spatial relationship information identifiers.

[0006] A method for updating sounding reference signal spatial relationship information includes receiving first information indicating sounding reference signal spatial relationship information for a sounding reference signal resource, wherein the sounding reference signal spatial relationship information includes: a plurality of sounding reference signal spatial relationship information identifiers; and a sounding reference signal spatial relationship information reference signal corresponding to each of the plurality of sounding reference signal spatial relationship information identifiers. In some embodiments, the method includes receiving second information indicating an update of the sounding reference signal spatial relationship information for the sounding reference signal resource, wherein the second information includes: a serving cell identifier; a bandwidth part identifier; one or more sounding reference signal resource identifiers, one or more sounding reference signal resource set identifiers, or a combination thereof; and one or more sounding reference signal spatial relationship information identifiers of a plurality of sounding reference signal spatial relationship information identifiers, wherein each of the one or more sounding reference signal resource identifiers corresponds to each of the one or more sounding reference signal spatial relationship information identifiers.

[0007] A device for updating sounding reference signal spatial relationship information, in one embodiment, includes: a receiver: which receives first information indicating sounding reference signal spatial relationship information for sounding reference signal resources, wherein the sounding reference signal spatial relationship information includes: multiple sounding reference signal spatial relationship information identifiers; and a sounding reference signal spatial relationship information reference signal corresponding to each sounding reference signal spatial relationship information identifier in the multiple sounding reference signal spatial relationship information identifiers; and receives second information indicating an update of the sounding reference signal spatial relationship information for the sounding reference signal resource, wherein the second information includes: a serving cell identifier; a bandwidth part identifier; one or more sounding reference signal resource identifiers, one or more sounding reference signal resource set identifiers, or a combination thereof; and one or more sounding reference signal spatial relationship information identifiers in the multiple sounding reference signal spatial relationship information identifiers, wherein each of the one or more sounding reference signal resource identifiers corresponds to each of the one or more sounding reference signal spatial relationship information identifiers. 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 updating sounding reference signal spatial relationship information;

[0010] Figure 2 is a schematic block diagram illustrating one embodiment of an apparatus that may be used to update sounding reference signal spatial relationship information;

[0011] Figure 3 is a schematic block diagram illustrating one embodiment of an apparatus that may be used to update sounding reference signal spatial relationship information;

[0012] Figure 4 is a schematic block diagram illustrating one embodiment of a MAC CE for PUCCH spatial relation activation and / or deactivation;

[0013] Figure 5 is a schematic block diagram illustrating one embodiment of a MAC CE for SP SRS activation and / or deactivation;

[0014] Figure 6 is a schematic block diagram illustrating an embodiment of a MAC CE for SRS resource spatial relationship information update;

[0015] Figure 7 is a schematic block diagram illustrating another embodiment of a MAC CE for updating SRS resource spatial relationship information;

[0016] Figure 8 is a schematic block diagram illustrating another embodiment of a MAC CE for updating SRS resource spatial relationship information;

[0017] Fig. 9 is a schematic block diagram illustrating an embodiment of a MAC CE for updating SRS resource set spatial relationship information;

[0018] Fig.10 is a schematic block diagram illustrating another embodiment of a MAC CE for updating SRS resource set spatial relationship information;

[0019] Fig.11 is a schematic block diagram illustrating another embodiment of a MAC CE for updating SRS resource set spatial relationship information;

[0020] Fig.12 is a schematic flow chart illustrating one embodiment of a method for updating sounding reference signal spatial relationship information; and

[0021] Fig.13 is a schematic flow chart illustrating another embodiment of a method for updating sounding reference signal spatial relationship information. DETAILED DESCRIPTION

[0022] As will be appreciated by those skilled in the art, aspects of the embodiments may be embodied as systems, devices, methods or program products. Therefore, 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 "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 only employs a signal for accessing the code.

[0023] 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.

[0024] 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.

[0025] In fact, a 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 individual memory devices. Similarly, in this article, operating data can be identified and illustrated in a module, and can be embodied in any suitable form and organized in the data structure of any suitable type. Operating 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 portion is stored on one or more computer-readable storage devices.

[0026] 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.

[0027] 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.

[0028] 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).

[0029] 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".

[0030] 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 art will recognize that the embodiments may be practiced without one or more of the specific details, or with other methods, components, materials, etc. In other cases, well-known structures, materials or operations are not shown or described in detail to avoid obscuring aspects of the embodiments.

[0031] 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 in the schematic flow charts and / or schematic block diagrams.

[0032] 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 / operations specified in one or more boxes of the schematic flowchart and / or schematic block diagram.

[0033] 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 / operations specified in one or more boxes of the flowchart and / or block diagram.

[0034] 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 a code for implementing a specified logical function.

[0035] 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.

[0036] 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 only be used to indicate 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 realized by a system based on dedicated hardware that performs a specific function or operation, or a combination of dedicated hardware and code.

[0037] 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.

[0038] Figure 1 An embodiment of a wireless communication system 100 for updating sounding reference signal spatial relationship information 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 .

[0039] 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 Internet of Things 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.

[0040] 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.

[0041] 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.

[0042] The network unit 104 may serve multiple remote units 102 within a service area, eg, 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.

[0043] In various embodiments, the remote unit 102 may receive first information indicating sounding reference signal spatial relationship information for a sounding reference signal resource, wherein the sounding reference signal spatial relationship information includes: a plurality of sounding reference signal spatial relationship information identifiers; and a sounding reference signal spatial relationship information reference signal corresponding to each of the plurality of sounding reference signal spatial relationship information identifiers. In some embodiments, the remote unit 102 may receive second information indicating updating the sounding reference signal spatial relationship information for the sounding reference signal resource, wherein the second information includes: a serving cell identifier; a bandwidth portion identifier; one or more sounding reference signal resource identifiers, one or more sounding reference signal resource set identifiers, or a combination thereof; and one or more sounding reference signal spatial relationship information identifiers of the plurality of sounding reference signal spatial relationship information identifiers, wherein each of the one or more sounding reference signal resource identifiers corresponds to each of the one or more sounding reference signal spatial relationship information identifiers. Thus, the remote unit 102 may be operable to update the sounding reference signal spatial relationship information.

[0044] In some embodiments, the network unit 104 may transmit first information indicating sounding reference signal spatial relationship information for a sounding reference signal resource, wherein the sounding reference signal spatial relationship information includes: a plurality of sounding reference signal spatial relationship information identifiers; and a sounding reference signal spatial relationship information reference signal corresponding to each of the plurality of sounding reference signal spatial relationship information identifiers. In some embodiments, the network unit 104 may transmit second information indicating updating the sounding reference signal spatial relationship information of the sounding reference signal resource, wherein the second information includes: a serving cell identifier; a bandwidth part identifier; one or more sounding reference signal resource identifiers, one or more sounding reference signal resource set identifiers, or a combination thereof; and one or more sounding reference signal spatial relationship information identifiers of the plurality of sounding reference signal spatial relationship information identifiers, wherein each of the one or more sounding reference signal resource identifiers corresponds to each of the one or more sounding reference signal spatial relationship information identifiers. Therefore, the network unit 104 may be used to update the sounding reference signal spatial relationship information.

[0045] Figure 2 One embodiment of an apparatus 200 that may be used to update sounding reference signal spatial relationship information 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.

[0046] 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.

[0047] 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.

[0048] 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.

[0049] 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.

[0050] 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.

[0051] In various embodiments, the receiver 212 may: receive first information indicating sounding reference signal spatial relationship information for a sounding reference signal resource, wherein the sounding reference signal spatial relationship information includes: a plurality of sounding reference signal spatial relationship information identifiers; and a sounding reference signal spatial relationship information reference signal corresponding to each of the plurality of sounding reference signal spatial relationship information identifiers; and receive second information indicating updating the sounding reference signal spatial relationship information of the sounding reference signal resource, wherein the second information includes: a serving cell identifier; a bandwidth part identifier; one or more sounding reference signal resource identifiers, one or more sounding reference signal resource set identifiers, or a combination thereof; and one or more sounding reference signal spatial relationship information identifiers of the plurality of sounding reference signal spatial relationship information identifiers, wherein each of the one or more sounding reference signal resource identifiers corresponds to each of the one or more sounding reference signal spatial relationship information identifiers. Although only one transmitter 210 and one receiver 212 are illustrated, the remote unit 102 may have any suitable number of transmitters 210 and receivers 212. The transmitter 210 and the receiver 212 may be any suitable type of transmitter and receiver. In one embodiment, the transmitter 210 and the receiver 212 may be part of a transceiver.

[0052] Figure 3 One embodiment of an apparatus 300 that may be used to update sounding reference signal spatial relationship information 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.

[0053] In some embodiments, the transmitter 310 may: transmit first information indicating sounding reference signal spatial relationship information for a sounding reference signal resource, wherein the sounding reference signal spatial relationship information includes: a plurality of sounding reference signal spatial relationship information identifiers; and a sounding reference signal spatial relationship information reference signal corresponding to each of the plurality of sounding reference signal spatial relationship information identifiers; and transmit second information indicating updating the sounding reference signal spatial relationship information of the sounding reference signal resource, wherein the second information includes: a serving cell identifier; a bandwidth part identifier; one or more sounding reference signal resource identifiers, one or more sounding reference signal resource set identifiers, or a combination thereof; and one or more sounding reference signal spatial relationship information identifiers of the plurality of sounding reference signal spatial relationship information identifiers, wherein each of the one or more sounding reference signal resource identifiers corresponds to each of the one or more sounding reference signal spatial relationship information identifiers. Although only one transmitter 310 and one receiver 312 are illustrated, the network unit 104 may have any suitable number of transmitters 310 and receivers 312. The transmitter 310 and the receiver 312 may be any suitable type of transmitter and receiver. In one embodiment, the transmitter 310 and the receiver 312 may be part of a transceiver.

[0054] In some embodiments, each SRS resource may be configured with a spatialRelationInfo field via RRC. The spatialRelationInfo field may indicate to the UE which TX beam to use to transmit the corresponding SRS resource. The spatialRelationInfo used for the SRS resource may be an index indicating a CSI-RS, an SSB, or another SRS. If the gNB wants the UE to change the TX beam of the SRS resource, the gNB may update the spatialRelationInfo by sending an RRC message. It will be understood that sending an RRC message to update the spatialRelationInfo may take a long time and the gNB may not be able to switch the TX beam of the SRS resource quickly. For semi-persistent SRS, activation and deactivation of an SRS resource set may be triggered by a MAC CE. During activation, all SRS resources within the SRS resource set may be configured with spatialRelationInfo. However, this may be limited to SP SRS.

[0055] In various embodiments, MAC CE may be used to quickly update spatialRelationInfo for SRS resources. In some embodiments, a UE may be configured with up to 64 spatialRelationInfos and the gNB may use MAC CE to quickly update the TX beams for aperiodic or semi-persistent SRS. To facilitate intra-band CA operation, if multiple carriers within the same band share the same TX beam, the same spatialRelationInfo may be shared across multiple carriers in different SRS resources for the same purpose. The common spatialRelationInfo for these SRS resources in different BWPs or different CCs of the same carrier may also be quickly updated via MAC-CE. In some embodiments, up to 2 carrier lists may be configured for this purpose.

[0056] In certain embodiments, the spatial relationship information (eg, spatialRelationInfo) for the SRS resources may be configured using an RRC message, such as the RRC message found in Table 1.

[0057] Table 1: Spatial relationship information configuration of SRS with RRC message

[0058]

[0059]

[0060] In various embodiments, the spatial relationship information for the PUCCH may be updated (eg, activated and / or deactivated) via a MAC CE, such as that found in Table 2.

[0061] Table 2: Spatial relationship information update of PUCCH via MAC CE

[0062]

[0063] Figure 42 is a schematic block diagram illustrating an embodiment of a MAC CE 400 for PUCCH spatial relationship activation and / or deactivation corresponding to Table 2. The MAC CE 400 includes a first octet 402, a second octet 404, and a third octet 406 including elements as described in Table 2. Each of the first octet 402, the second octet 404, and the third octet 406 includes eight bits. The first octet 402 includes a reserved bit R, a serving cell ID (5 bits), and a BWP ID (2 bits). The second octet 404 includes a reserved bit R and a PUCCH resource ID (7 bits). The third octet 406 includes eight Si bits S7, S6, S5, S4, S3, S2, S1, and S0, as described in Table 2.

[0064] In some embodiments, the spatialRelationInfo for the semi-persistent SRS resources within the SRS resource set may be configured during activation via a MAC CE, such as that found in Table 3.

[0065] Table 3: SP SRS activation / deactivation MAC CE

[0066]

[0067]

[0068] Figure 5 3 is a schematic block diagram illustrating an embodiment of a MAC CE 500 for SP SRS activation and / or deactivation corresponding to Table 3. The MAC CE 500 includes a first octet 502, a second octet 504, a third octet 506, a fourth octet 508, a fifth octet 510, and a sixth octet 512, and additional octets containing elements as described in Table 3 as needed. Each of the first octet 502, the second octet 504, the third octet 506, the fourth octet 508, the fifth octet 510, and the sixth octet 512 includes eight bits. The first octet 502 includes an A / D bit, a cell ID (5 bits) and a BWP ID (2 bits) of an SRS resource set (e.g., a BWP ID of an SRS resource set). The second octet 504 includes two reserved bits R, a C bit, a SUL bit, and an SP SRS resource set ID (4 bits). The third octet 506 includes Fi bits F0 and resource IDi (7 bits) (eg, resource ID0). The fourth octet 508 includes Fi bits F0. M-1 and resource ID i (7 bits) (e.g., resource ID M-1). The fifth octet 510 includes reserved bits, resource serving cell IDi (5 bits) (e.g., resource serving cell ID0) and BWP IDi (2 bits) (e.g., BWP ID0, resource BWPID0). The sixth octet 512 includes reserved bits, resource serving cell IDi (5 bits) (e.g., resource serving cell ID M-1 ) and BWP ID i (2 bits) (e.g., BWP ID M-1 , Resource BWP ID M-1 ).

[0069] In some embodiments, the SRS Resource spatialRelationInfo MAC-CE may be used to: update the spatial relationship information of a single AP SRS; and update the spatial relationship information of AP and / or SP SRS in multiple CCs and / or BWPs. In such an embodiment, the MAC CE may be identified by a MAC PDU subheader with a dedicated LCID. An example implementation of the MAC CE is Figure 6 As shown in the figure.

[0070] Figure 6 6 is a schematic block diagram illustrating an embodiment of a MAC CE 600 for updating SRS resource spatial relationship information. The MAC CE 600 includes a first octet 602, a second octet 604, and a third octet 606. Each of the first octet 602, the second octet 604, and the third octet 606 includes eight bits. The first octet 602 includes a reserved bit R, a serving cell ID (5 bits), and a BWP ID (2 bits). The second octet 604 includes two reserved bits R and an SRS resource ID (6 bits). The third octet 606 includes two reserved bits R and an SRS-spatialRelationInfo ID (6 bits).

[0071] Figure 6The fields of MAC CE 600 may be defined as follows: 1) Serving cell ID: This field may indicate the identification of the serving cell of the SRS resources to which the MAC CE applies - the length of this field is 5 bits; 2) BWP ID: This field may indicate the UL BWP applied by the MAC CE as the code point of the DCI bandwidth part indicator field - the length of the BWP ID field is 2 bits; 3) SRS resource ID: This field may indicate the ID of the SRS resource - it may be one of the SRS resource IDs configured in the SRS-Config via RRC and the length of this field is 6 bits; 4) SRS-spatialRelationInfo ID: This may identify the ID of the SRS-spatialRelationInfo applied to the SRS resources specified by the SRS resource ID.

[0072] In various embodiments, upon receiving Figure 6 When MAC CE 600 is executed, the UE updates the spatial relationship information of the SRS resource of the corresponding spatial relationship information (eg, indicated by the serving cell ID, the BWP ID, and the SRS resource ID) indicated by the SRS-spatialRelationInfo ID.

[0073] In some embodiments, the spatialRelationInfo of all SRSs with the same SRS resource ID in all BWPs of all configured CCs in the list may be implicitly updated. In some embodiments, if SimultaenousSpatialRelationCellList i (i=0 or 1) is configured by RRC and includes the serving cell ID of the MAC CE, the spatialRelationInfo of all SRS resources with all matching SRS resource IDs in the BWPs of all CCs in the SimultaenousSpatialRelationCellList are updated to SRS-spatialRelationInfo ID. In such an embodiment, the SRS resource may be an AP or an SP. In addition, in such an embodiment, the RRC may configure up to 2 SimultaenousSpatialRelationCellList lists (e.g., 0, 1) for the UE. If the list is not configured or the serving cell ID is not included in the list, the spatialRelationInfo of any SRS resources in other CCs is not updated.

[0074] In various embodiments, spatialRelationInfo may be configured for a resource instead of configuring spatialRelationInfo for a resource set. In some embodiments, if a CC list SimultaenousSpatialRelationCellList is configured, multiple SRS resources in different CCs may be updated together.

[0075] In some embodiments, the SRS-spatialRelationInfo IE may be defined as shown in Table 4.

[0076] Table 4: SRS-SpatialRelationInfo IE

[0077]

[0078] Figure 6 The MAC CE 600 may be used to update the spatialRelationInfo of multiple SRS resources within the same CC and BWP, and if SimultaenousSpatialRelationCellList i is configured and includes a serving cell ID, all SRS resources with the same SRS resource ID in other CCs in the same list may be updated with the same spatialRelationInfo.

[0079] In About Figure 7 In one described embodiment, the MAC CE may include multiple pairs of SRS resource IDs and SRS-spatialRelationInfo IDs.

[0080] Specifically, Figure 7700 is a schematic block diagram illustrating another embodiment of a MAC CE 700 for updating SRS resource spatial relationship information. MAC CE 700 includes a first octet 702, a second octet 704, a third octet 706, a fourth octet 708, a fifth octet 710, a sixth octet 712, and a seventh octet 714, as well as additional octets as needed. Each of the first octet 702, the second octet 704, the third octet 706, the fourth octet 708, the fifth octet 710, the sixth octet 712, and the seventh octet 714 includes eight bits. The first octet 702 includes a reserved bit R, a serving cell ID (5 bits), and a BWP ID (2 bits). The second octet 704 includes two reserved bits R and SRS resource ID_0 (6 bits). The third octet 706 includes two reserved bits R and SRS-spatialRelationInfo ID_0 (6 bits). The fourth octet 708 includes two reserved bits R and SRS resource ID_1 (6 bits). The fifth octet 710 includes two reserved bits R and SRS-spatialRelationInfo ID_1 (6 bits). The sixth octet 712 includes two reserved bits R and SRS resource ID_(M-1) (6 bits). The seventh octet 714 includes two reserved bits R and SRS-spatialRelationInfo ID_(M-1) (6 bits). As can be understood, there can be up to M SRS resources updated by M SRS-spatialRelationInfo.

[0081] In About Figure 8 In another described embodiment, the MAC CE may use a bitmap indicating the SRS resources to be updated through the corresponding spatialRelationInfo.

[0082] Specifically, Figure 8800 is a schematic block diagram illustrating another embodiment of a MAC CE 800 for updating SRS resource spatial relationship information. MAC CE 800 includes a first octet 802, a second octet 804, a third octet 806, a fourth octet 808, a fifth octet 810, a sixth octet 812, and a seventh octet 814, as well as additional octets as needed. Each of the first octet 802, the second octet 804, the third octet 806, the fourth octet 808, the fifth octet 810, the sixth octet 812, and the seventh octet 814 includes eight bits. The first octet 802 includes a reserved bit R, a serving cell ID (5 bits), and a BWP ID (2 bits). The second octet 804 includes 8 ID bits, which are part of a 64-bit bitmap, where each bit corresponds to an SRS resource ID. The third octet 806 includes 8 additional ID bits that are part of a 64-bit bitmap. The fourth octet 808 includes 8 additional ID bits that are part of a 64-bit bitmap. It will be appreciated that the unlisted ID bits that are part of the 64-bit bitmap are indicated by the dot between the third octet 806 and the fourth octet 808. The fifth octet 810 includes SRS-spatialRelationInfo ID_0 (6 bits) and the first two bits of the six-bit SRS-spatialRelationInfoID_1. SRS-spatialRelationInfo ID_0 corresponds to a 64-bit bitmap indicating the first SRS resource ID to be updated (e.g., a "0" in the bitmap indicates that the SRS resource ID is not updated, and a "1" in the bitmap indicates that the SRS resource ID is to be updated). SRS-spatialRelationInfo ID_1 corresponds to a 64-bit bitmap indicating the second SRS resource ID to be updated. The sixth octet 812 includes the remaining 4 bits of the six-bit SRS-spatialRelationInfo ID_1. The seventh octet 814 includes six bits of the six-bit SRS-spatialRelationInfo ID_m. SRS-spatialRelationInfo ID_m corresponds to the mth (e.g., M-1) SRS resource ID to be updated as indicated by the 64-bit bitmap. The SRS-spatialRelationInfo for M SRS resource IDs may be updated, as indicated by the point between the sixth octet 812 and the seventh octet 814.

[0083] For a 64-bit bitmap, the i-th bit corresponds to SRS resource ID i. If the MAC CE 800 updates the spatialRelationInfo of SRS resource i, bit i is set to 1, and otherwise is set to 0. If there are a total of M SRS resources whose spatialRelationInfo are to be updated, there are M 1s in the bitmap, and M SRSspatialRelationInfo IDs are added after the bitmap, each corresponding to an SRS resource indicated by 1 in the bitmap.

[0084] In various embodiments, for use of SRS resource sets set to non-codebook, up to 4 SRS resources may be configured for PUSCH transmissions of up to rank 4. These SRS resources may be used as DMRS ports for non-codebook based PUSCH transmissions. If multiple SRS resources are used together in a non-codebook based PUSCH, they may be configured with the same path loss reference RS and the same spatialRelationInfo. In some embodiments, a path loss reference RS for SRS may be configured for each resource set; therefore, SRS resources in the same SRS resource set may have the same path loss reference RS. In certain embodiments, a spatialRelationInfo for SRS may be configured for each SRS resource. For SRS resources used for non-codebook PUSCH transmissions, their spatialRelationInfo may be configured to the same value per resource individually via RRC. This may be time consuming and may inhibit fast beam switching for non-codebook based PUSCH transmissions.

[0085] In some embodiments, in order to speed up the configuration and / or reconfiguration of spatial relationship information of SRS resources set as non-codebook, a spatial relationship information update based on an SRS resource set may be used. For example, a single MAC CE may be used to update the spatialRelationInfo of all SRS resources within an SRS resource set. As another example, a MAC CE with additional update rules may be used.

[0086] In various embodiments, such as for multi-TRP PUSCH, multiple non-codebook SRS resource sets can be configured for the UE. In such an embodiment, each SRS resource set can be used to be transmitted to a TRP.

[0087] In some embodiments, such as regarding Fig. 9As described, the MAC CE may be used to update the spatialRelationInfo of all SRS resources in the SRS resource set. Such an embodiment may also be used to update multiple SRS resources in other CCs. The MAC CE may be identified by a MAC PDU subheader with a dedicated LCID.

[0088] Fig. 9 1 is a schematic block diagram illustrating an embodiment of a MAC CE 900 for updating spatial relationship information of an SRS resource set. The MAC CE 900 includes a first octet 902, a second octet 904, and a third octet 906. Each of the first octet 902, the second octet 904, and the third octet 906 includes eight bits. The first octet 902 includes a reserved bit R, a serving cell ID (5 bits), and a BWP ID (2 bits). The second octet 904 includes four reserved bits R and an SRS resource set ID (4 bits). The third octet 906 includes two reserved bits R and an SRS-spatialRelationInfo ID (6 bits).

[0089] Fig. 9 The fields of MAC CE 900 can be defined as follows: 1) Serving cell ID: This field can indicate the identification of the serving cell of the SRS resources applied by the MAC CE - the length of this field is 5 bits; 2) BWP ID: This field can indicate the UL BWP applied by the MAC CE as the code point of the DCI bandwidth part indication field - the length of the BWP ID field is 2 bits; 3) SRS resource set ID: This field can indicate the ID of the SRS resource set - it can be one of the SRS resource set IDs configured in the SRS-Congfig through RRC and the length of this field is 4 bits; and 4) SRS-spatialRelationInfo ID: This can identify the ID of the SRS-spatialRelationInfo applied to the SRS resource set specified by the SRS resource set ID.

[0090] In some embodiments, upon receiving MAC CE 900, the UE updates the spatial relationship information of all SRS resources within the SRS resource set of the corresponding spatial relationship information (eg, indicated by serving cell ID, BWP ID and SRS resource set ID) indicated by SRS-spatialRelationInfoID.

[0091] In some embodiments, if SimultaenousSpatialRelationCellList i (i = 0 or 1) is configured by RRC and includes the serving cell ID of the MAC CE, the spatialRelationInfo of all SRS resources in the SRS resource set with all matching SRS resource IDs in all BWPs of all CCs in the SimultaenousSpatialRelationCellList is updated to SRS-spatialRelationInfo ID. In such an embodiment, the SRS resource can be an AP or an SP. In addition, in such an embodiment, the RRC can configure the UE with up to 2 SimultaenousSpatialRelationCellList lists (e.g., 0, 1). If the list is not configured or the serving cell ID is not included in the list, the spatialRelationInfo of any SRS resources in other CCs is not updated.

[0092] In various embodiments, for an SRS resource set using a codebook, up to two SRS resources may be configured. These two SRS resources may or may not have the same spatialRelationInfo. If they share the same spatialRelationInfo, the gNB may also use MAC CE to configure their spatialRelationInfo together.

[0093] In some embodiments, the same spatialRelationInfo may be configured for all resources in an SRS resource set (eg, resources not individually configured in the resource set). In some embodiments, if a CC list SimultaenousSpatialRelationCellList is configured, multiple SRS resources in different CCs may be updated together.

[0094] In some embodiments, if at least one SimultaenousSpatialRelationCellList is configured, the MAC CE can be used to update the spatial relationship of all SRS resources in multiple SRS resource sets and / or multiple CCs. In some embodiments, if the ID of the SRS resource set can be fully indicated (e.g., via 4 bits) and / or indicated with a bitmap of length 16 (e.g., the length can be configured by maxNrofSRS-ResourceSets), the IDs in multiple SRS resource sets can be included in the same MAC CE.

[0095] Fig.101 is a schematic block diagram of another embodiment of a MAC CE 1000 for updating spatial relationship information of an SRS resource set. The MAC CE 1000 includes a first octet 1002, a second octet 1004, a third octet 1006, and a fourth octet 1008, and additional octets as needed. Each of the first octet 1002, the second octet 1004, the third octet 1006, and the fourth octet 1008 includes eight bits. The first octet 1002 includes a reserved bit R, a serving cell ID (5 bits), and a BWP ID (2 bits). The second octet 1004 includes an SRS resource set ID 1 (4 bits) and an SRS resource set ID 0 (4 bits). The third octet 1006 includes the first two bits of the six-bit SRS-spatialRelationInfo ID 1 and the SRS-spatialRelationInfo ID 0 (6 bits). SRS-spatialRelationInfo ID 0 corresponds to SRS resource set ID 0. SRS-spatialRelationInfo ID 1 corresponds to SRS resource ID 1. The fourth octet 1008 includes four reserved bits R and the remaining 4 bits of SRS-spatialRelationInfo ID 1 of six bits.

[0096] Fig.111 is a schematic block diagram of another embodiment of a MAC CE 1100 for updating spatial relationship information of an SRS resource set. The MAC CE 1100 includes a first octet 1102, a second octet 1104, a third octet 1106, a fourth octet 1108, and a fifth octet 1110, as well as additional octets as needed. Each of the first octet 1102, the second octet 1104, the third octet 1106, the fourth octet 1108, and the fifth octet 1110 includes eight bits. The first octet 1102 includes a reserved bit R, a serving cell ID (5 bits), and a BWP ID (2 bits). The second octet 1104 includes 8 ID bits, which are part of a 16-bit bitmap, each bit corresponding to an SRS resource set ID. The third octet 1106 includes 8 additional ID bits, which are part of a 16-bit bitmap. The fourth octet 1108 includes SRS-spatialRelationInfo ID 1 (4 bits) and SRS-spatialRelationInfo ID 0 (4 bits). SRS-spatialRelationInfo ID 0 corresponds to a 16-bit bitmap indicating the first SRS resource set ID to be updated (e.g., "0" in the bitmap indicates that the SRS resource set ID will not be updated, and "1" in the bitmap indicates that the SRS resource set ID is to be updated). SRS-spatialRelationInfo ID 1 corresponds to the second SRS resource set ID to be updated indicated by the 16-bit bitmap. The fifth octet 1110 includes SRS-spatialRelationInfo ID 3 (4 bits) and SRS-spatialRelationInfo ID 2 (4 bits). SRS-spatialRelationInfo ID 2 corresponds to a 16-bit bitmap indicating the third SRS resource set ID to be updated. SRS-spatialRelationInfo ID 3 corresponds to a 16-bit bitmap indicating the fourth SRS resource set ID to be updated. The SRS-spatialRelationInfo for the M SRS resource set IDs may be updated as indicated by a 16-bit bitmap.

[0097] In various embodiments, the MAC CE for updating the spatialRelationInfo of individual SRS resources may be reused with additional rules. In such an embodiment, if RRC is used to configure all SRS resources of an SRS resource set to share a common spatialRelationInfo, if any one of the SRS resources within the SRS resource has its spatialRelationInfo updated by RRC reconfiguration or by a MAC CE, the UE may update the spatialRelationInfo of all SRS resources within the set together. In addition, in such an embodiment, the SRS resource may be part of an SRS resource set that uses a non-codebook setting. Rules for applying spatialRelationInfo to other SRS resources in other CCs according to a SimultaenousSpatialRelationCellList may also be used. If configured, SRS resources within an SRS resource set having the same ID as an SRS resource set indicated in a MAC CE for SRS resources contained in other CCs may be updated by the same spatialRelationInfo.

[0098] Fig.12 1 is a schematic flow chart illustrating one embodiment of a method 1200 for updating sounding reference signal spatial relationship information. In some embodiments, the method 1200 is performed by a device such as the network unit 104. In some embodiments, the method 1200 may be performed by a processor that executes program code, such as a microcontroller, a microprocessor, a CPU, a GPU, an auxiliary processing unit, an FPGA, etc.

[0099] The method 1200 may include transmitting 1202 first information indicating sounding reference signal spatial relationship information for a sounding reference signal resource, wherein the sounding reference signal spatial relationship information includes: a plurality of sounding reference signal spatial relationship information identifiers; and a sounding reference signal spatial relationship information reference signal corresponding to each of the plurality of sounding reference signal spatial relationship information identifiers. In some embodiments, the method 1200 includes transmitting 1204 second information indicating an update of the sounding reference signal spatial relationship information for the sounding reference signal resource, wherein the second information includes: a serving cell identifier; a bandwidth part identifier; one or more sounding reference signal resource identifiers, one or more sounding reference signal resource set identifiers, or a combination thereof; and one or more sounding reference signal spatial relationship information identifiers of the plurality of sounding reference signal spatial relationship information identifiers, wherein each of the one or more sounding reference signal resource identifiers corresponds to each of the one or more sounding reference signal spatial relationship information identifiers.

[0100] In some embodiments, the first information is transmitted using radio resource control signaling. In some embodiments, the second information is transmitted using a medium access control control element. In various embodiments, the sounding reference signal resource is aperiodic or semi-persistent.

[0101] In one embodiment, the method 1200 further includes transmitting third information indicating one or more simultaneous spatial relation cell lists for updating the sounding reference signal spatial relation information using radio resource control signaling. In some embodiments, the second information includes one or more sounding reference signal resource set identifiers, and each of the one or more sounding reference signal resource set identifiers corresponds to each of the one or more sounding reference signal spatial relation information identifiers. In some embodiments, the one or more sounding reference signal resource set identifiers include a bitmap, and each bit of the bitmap corresponds to a sounding reference signal resource set identifier in the one or more sounding reference signal resource set identifiers.

[0102] In various embodiments, the second information includes one or more sounding reference signal resource identifiers, the one or more sounding reference signal resource identifiers include a bitmap, and each bit of the bitmap corresponds to a sounding reference signal resource identifier in the one or more sounding reference signal resource identifiers. In one embodiment, the method 1200 further includes transmitting fourth information indicating a sounding reference signal resource set, wherein each sounding reference signal resource in the sounding reference signal resource set has the same sounding reference signal spatial relationship information. In some embodiments, the sounding reference signal resource set is used for non-codebook use.

[0103] Fig.13 1 is a schematic flow chart illustrating one embodiment of a method 1300 for updating sounding reference signal spatial relationship information. In some embodiments, the method 1300 is performed by a device such as the remote unit 102. In some embodiments, the method 1300 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.

[0104] The method 1300 may include receiving 1302 first information indicating sounding reference signal spatial relationship information for a sounding reference signal resource, wherein the sounding reference signal spatial relationship information includes: a plurality of sounding reference signal spatial relationship information identifiers; and a sounding reference signal spatial relationship information reference signal corresponding to each of the plurality of sounding reference signal spatial relationship information identifiers. In some embodiments, the method 1300 includes receiving 1304 second information indicating an update of the sounding reference signal spatial relationship information for the sounding reference signal resource, wherein the second information includes: a serving cell identifier; a bandwidth part identifier; one or more sounding reference signal resource identifiers, one or more sounding reference signal resource set identifiers, or a combination thereof; and one or more sounding reference signal spatial relationship information identifiers of the plurality of sounding reference signal spatial relationship information identifiers, wherein each of the one or more sounding reference signal resource identifiers corresponds to each of the one or more sounding reference signal spatial relationship information identifiers.

[0105] In some embodiments, the first information is received using radio resource control signaling. In some embodiments, the second information is received using a medium access control control element. In various embodiments, the sounding reference signal resource is aperiodic or semi-persistent.

[0106] In one embodiment, the method 1300 further includes receiving third information indicating one or more simultaneous spatial relation cell lists for updating the sounding reference signal spatial relation information using radio resource control signaling. In some embodiments, the method 1300 further includes: in response to receiving the second information and the third information, updating each of the component carriers in the simultaneous spatial relation cell list in the one or more simultaneous spatial relation cell lists based on the second information.

[0107] In various embodiments, the second information includes one or more sounding reference signal resource set identifiers, and each of the one or more sounding reference signal resource set identifiers corresponds to each of the one or more sounding reference signal spatial relation information identifiers. In one embodiment, the one or more sounding reference signal resource set identifiers include a bitmap, and each bit of the bitmap corresponds to a sounding reference signal resource set identifier in the one or more sounding reference signal resource set identifiers. In certain embodiments, the second information includes one or more sounding reference signal resource identifiers, the one or more sounding reference signal resource identifiers include a bitmap, and each bit of the bitmap corresponds to a sounding reference signal resource identifier in the one or more sounding reference signal resource identifiers.

[0108] In some embodiments, the method 1300 further includes receiving fourth information indicating a sounding reference signal resource set, wherein each sounding reference signal resource in the sounding reference signal resource set has the same sounding reference signal spatial relationship information. In various embodiments, the sounding reference signal resource set is used for non-codebook use. In one embodiment, the method 1300 further includes updating the sounding reference signal spatial relationship information of the sounding reference signal resource based on the second information.

[0109] In one embodiment, a method includes: transmitting first information indicating sounding reference signal spatial relationship information for a sounding reference signal resource, wherein the sounding reference signal spatial relationship information includes: a plurality of sounding reference signal spatial relationship information identifiers; and a sounding reference signal spatial relationship information reference signal corresponding to each of the plurality of sounding reference signal spatial relationship information identifiers; and transmitting second information indicating an update of the sounding reference signal spatial relationship information for the sounding reference signal resource, wherein the second information includes: a serving cell identifier; a bandwidth part identifier; one or more sounding reference signal resource identifiers, one or more sounding reference signal resource set identifiers, or a combination thereof; and one or more sounding reference signal spatial relationship information identifiers among the plurality of sounding reference signal spatial relationship information identifiers, wherein each of the one or more sounding reference signal resource identifiers corresponds to each of the one or more sounding reference signal spatial relationship information identifiers.

[0110] In some embodiments, the first information is transmitted using radio resource control signaling.

[0111] In some embodiments, the second information is transmitted using a medium access control control element.

[0112] In various embodiments, the sounding reference signal resource is aperiodic or semi-persistent.

[0113] In one embodiment, the method further comprises transmitting third information indicating one or more simultaneous spatial relation cell lists for updating the sounding reference signal spatial relation information using radio resource control signaling.

[0114] In some embodiments, the second information includes one or more sounding reference signal resource set identifiers, and each of the one or more sounding reference signal resource set identifiers corresponds to each of the one or more sounding reference signal spatial relation information identifiers.

[0115] In some embodiments, the one or more sounding reference signal resource set identifiers include a bitmap, and each bit of the bitmap corresponds to a sounding reference signal resource set identifier in the one or more sounding reference signal resource set identifiers.

[0116] In various embodiments, the second information includes one or more sounding reference signal resource identifiers, the one or more sounding reference signal resource identifiers include a bitmap, and each bit of the bitmap corresponds to a sounding reference signal resource identifier in the one or more sounding reference signal resource identifiers.

[0117] In one embodiment, the method further includes transmitting fourth information indicating a sounding reference signal resource set, wherein each sounding reference signal resource in the sounding reference signal resource set has the same sounding reference signal spatial relationship information.

[0118] In some embodiments, the sounding reference signal resource set is used for non-codebook use.

[0119] In one embodiment, a device includes: a transmitter: the transmitter transmits first information indicating sounding reference signal spatial relationship information for sounding reference signal resources, wherein the sounding reference signal spatial relationship information includes: multiple sounding reference signal spatial relationship information identifiers; and a sounding reference signal spatial relationship information reference signal corresponding to each sounding reference signal spatial relationship information identifier in the multiple sounding reference signal spatial relationship information identifiers; and transmits second information indicating an update of the sounding reference signal spatial relationship information for the sounding reference signal resource, wherein the second information includes: a serving cell identifier; a bandwidth part identifier; one or more sounding reference signal resource identifiers, one or more sounding reference signal resource set identifiers, or a combination thereof; and one or more sounding reference signal spatial relationship information identifiers in the multiple sounding reference signal spatial relationship information identifiers, wherein each of the one or more sounding reference signal resource identifiers corresponds to each of the one or more sounding reference signal spatial relationship information identifiers.

[0120] In some embodiments, the first information is transmitted using radio resource control signaling.

[0121] In some embodiments, the second information is transmitted using a medium access control control element.

[0122] In various embodiments, the sounding reference signal resource is aperiodic or semi-persistent.

[0123] In one embodiment, the transmitter transmits third information indicating one or more simultaneous spatial relation cell lists for updating the sounding reference signal spatial relation information using radio resource control signaling.

[0124] In some embodiments, the second information includes one or more sounding reference signal resource set identifiers, and each of the one or more sounding reference signal resource set identifiers corresponds to each of the one or more sounding reference signal spatial relation information identifiers.

[0125] In some embodiments, the one or more sounding reference signal resource set identifiers include a bitmap, and each bit of the bitmap corresponds to a sounding reference signal resource set identifier in the one or more sounding reference signal resource set identifiers.

[0126] In various embodiments, the second information includes one or more sounding reference signal resource identifiers, the one or more sounding reference signal resource identifiers include a bitmap, and each bit of the bitmap corresponds to a sounding reference signal resource identifier in the one or more sounding reference signal resource identifiers.

[0127] In one embodiment, the transmitter transmits fourth information indicating a sounding reference signal resource set, and each sounding reference signal resource in the sounding reference signal resource set has the same sounding reference signal spatial relationship information.

[0128] In some embodiments, the sounding reference signal resource set is used for non-codebook use.

[0129] In one embodiment, the method includes: receiving first information indicating sounding reference signal spatial relationship information for sounding reference signal resources, wherein the sounding reference signal spatial relationship information includes: multiple sounding reference signal spatial relationship information identifiers; and a sounding reference signal spatial relationship information reference signal corresponding to each sounding reference signal spatial relationship information identifier in the multiple sounding reference signal spatial relationship information identifiers; and receiving second information indicating an update of the sounding reference signal spatial relationship information for the sounding reference signal resource, wherein the second information includes: a serving cell identifier; a bandwidth part identifier; one or more sounding reference signal resource identifiers, one or more sounding reference signal resource set identifiers, or a combination thereof; and one or more sounding reference signal spatial relationship information identifiers in the multiple sounding reference signal spatial relationship information identifiers, wherein each of the one or more sounding reference signal resource identifiers corresponds to each of the one or more sounding reference signal spatial relationship information identifiers.

[0130] In some embodiments, the first information is received using radio resource control signaling.

[0131] In some embodiments, the second information is received using a medium access control control element.

[0132] In various embodiments, the sounding reference signal resource is aperiodic or semi-persistent.

[0133] In one embodiment, the method further comprises receiving third information indicating one or more simultaneous spatial relation cell lists for updating the sounding reference signal spatial relation information using radio resource control signaling.

[0134] In some embodiments, the method further comprises, in response to receiving the second information and the third information, updating each of the component carriers in the simultaneous spatial relation cell list in the one or more simultaneous spatial relation cell lists based on the second information.

[0135] In various embodiments, the second information includes one or more sounding reference signal resource set identifiers, and each of the one or more sounding reference signal resource set identifiers corresponds to each of the one or more sounding reference signal spatial relation information identifiers.

[0136] In one embodiment, the one or more sounding reference signal resource set identifiers include a bitmap, and each bit of the bitmap corresponds to a sounding reference signal resource set identifier in the one or more sounding reference signal resource set identifiers.

[0137] In some embodiments, the second information includes one or more sounding reference signal resource identifiers, the one or more sounding reference signal resource identifiers include a bitmap, and each bit of the bitmap corresponds to a sounding reference signal resource identifier in the one or more sounding reference signal resource identifiers.

[0138] In some embodiments, the method further includes receiving fourth information indicating a sounding reference signal resource set, wherein each sounding reference signal resource in the sounding reference signal resource set has the same sounding reference signal spatial relationship information.

[0139] In various embodiments, the sounding reference signal resource set is used for non-codebook usage.

[0140] In one embodiment, the method further includes updating the sounding reference signal spatial relationship information of the sounding reference signal resource based on the second information.

[0141] In one embodiment, a device includes: a receiver: the receiver receives first information indicating sounding reference signal spatial relationship information for sounding reference signal resources, wherein the sounding reference signal spatial relationship information includes: multiple sounding reference signal spatial relationship information identifiers; and a sounding reference signal spatial relationship information reference signal corresponding to each sounding reference signal spatial relationship information identifier in the multiple sounding reference signal spatial relationship information identifiers; and receives second information indicating an update of the sounding reference signal spatial relationship information for the sounding reference signal resource, wherein the second information includes: a serving cell identifier; a bandwidth part identifier; one or more sounding reference signal resource identifiers, one or more sounding reference signal resource set identifiers, or a combination thereof; and one or more sounding reference signal spatial relationship information identifiers in the multiple sounding reference signal spatial relationship information identifiers, wherein each of the one or more sounding reference signal resource identifiers corresponds to each of the one or more sounding reference signal spatial relationship information identifiers.

[0142] In some embodiments, the first information is received using radio resource control signaling.

[0143] In some embodiments, the second information is received using a medium access control control element.

[0144] In various embodiments, the sounding reference signal resource is aperiodic or semi-persistent.

[0145] In one embodiment, the receiver receives third information indicating one or more simultaneous spatial relation cell lists for updating the sounding reference signal spatial relation information using radio resource control signaling.

[0146] In some embodiments, the apparatus further comprises a processor that, in response to receiving the second information and the third information, updates each of the component carriers in the simultaneous spatial relation cell list in the one or more simultaneous spatial relation cell lists based on the second information.

[0147] In various embodiments, the second information includes one or more sounding reference signal resource set identifiers, and each of the one or more sounding reference signal resource set identifiers corresponds to each of the one or more sounding reference signal spatial relation information identifiers.

[0148] In one embodiment, the one or more sounding reference signal resource set identifiers include a bitmap, and each bit of the bitmap corresponds to a sounding reference signal resource set identifier in the one or more sounding reference signal resource set identifiers.

[0149] In some embodiments, the second information includes one or more sounding reference signal resource identifiers, the one or more sounding reference signal resource identifiers include a bitmap, and each bit of the bitmap corresponds to a sounding reference signal resource identifier in the one or more sounding reference signal resource identifiers.

[0150] In some embodiments, the receiver receives fourth information indicating a sounding reference signal resource set, and each sounding reference signal resource in the sounding reference signal resource set has the same sounding reference signal spatial relationship information.

[0151] In various embodiments, the sounding reference signal resource set is used for non-codebook usage.

[0152] In one embodiment, the apparatus further comprises a processor, which updates the sounding reference signal spatial relationship information of the sounding reference signal resource based on the second information.

[0153] 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 performed by a network element, comprising: Transmitting first information indicating sounding reference signal spatial relationship information for a sounding reference signal resource, wherein the sounding reference signal spatial relationship information comprises: a plurality of sounding reference signal spatial relation information identifiers; and a sounding reference signal spatial relation information reference signal corresponding to each sounding reference signal spatial relation information identifier of the plurality of sounding reference signal spatial relation information identifiers; and transmitting second information indicating an update of the sounding reference signal spatial relationship information of the sounding reference signal resource, wherein the second information comprises: serving cell identifier; bandwidth section identifier; one or more sounding reference signal resource identifiers, one or more sounding reference signal resource set identifiers, or a combination thereof; and One or more sounding reference signal spatial relation information identifiers of the plurality of sounding reference signal spatial relation information identifiers, wherein each of the one or more sounding reference signal resource identifiers corresponds to each of the one or more sounding reference signal spatial relation information identifiers.

2. The method according to claim 1, wherein: The first information is transmitted using radio resource control signaling.

3. The method according to claim 1, wherein: The second information is transmitted using a medium access control control element.

4. The method according to claim 1, wherein: The sounding reference signal resource is aperiodic or semi-persistent.

5. The method according to claim 1, further comprising: Third information indicating one or more simultaneous spatial relation cell lists for updating the sounding reference signal spatial relation information using radio resource control signaling is transmitted.

6. The method according to claim 1, wherein: The second information includes the one or more sounding reference signal resource set identifiers, and each of the one or more sounding reference signal resource set identifiers corresponds to each of the one or more sounding reference signal spatial relation information identifiers.

7. The method according to claim 6, wherein: The one or more sounding reference signal resource set identifiers include a bitmap, and each bit of the bitmap corresponds to a sounding reference signal resource set identifier among the one or more sounding reference signal resource set identifiers.

8. The method according to claim 1, wherein: The second information includes the one or more sounding reference signal resource identifiers, the one or more sounding reference signal resource identifiers include a bitmap, and each bit of the bitmap corresponds to a sounding reference signal resource identifier among the one or more sounding reference signal resource identifiers.

9. The method according to claim 1, further comprising transmitting fourth information indicating a sounding reference signal resource set, wherein each sounding reference signal resource in the sounding reference signal resource set has the same sounding reference signal spatial relationship information.

10. The method according to claim 9, wherein: The sounding reference signal resource set is used for non-codebook use.

11. A network unit, comprising: A transmitter, the transmitter: Transmitting first information indicating sounding reference signal spatial relationship information for a sounding reference signal resource, wherein the sounding reference signal spatial relationship information includes: a plurality of sounding reference signal spatial relation information identifiers; and a sounding reference signal spatial relation information reference signal corresponding to each sounding reference signal spatial relation information identifier of the plurality of sounding reference signal spatial relation information identifiers; and transmitting second information indicating an update of the sounding reference signal spatial relationship information of the sounding reference signal resource, wherein the second information comprises: serving cell identifier; bandwidth section identifier; one or more sounding reference signal resource identifiers, one or more sounding reference signal resource set identifiers, or a combination thereof; and One or more sounding reference signal spatial relation information identifiers of the plurality of sounding reference signal spatial relation information identifiers, wherein each of the one or more sounding reference signal resource identifiers corresponds to each of the one or more sounding reference signal spatial relation information identifiers.

12. The network unit according to claim 11, wherein: The first information is transmitted using radio resource control signaling.

13. The network unit according to claim 11, wherein: The second information is transmitted using a medium access control control element.

14. The network unit according to claim 11, wherein: The sounding reference signal resource is aperiodic or semi-persistent.

15. The network unit according to claim 11, wherein: The transmitter transmits third information indicating one or more simultaneous spatial relation cell lists for updating the sounding reference signal spatial relation information using radio resource control signaling.

16. The network unit according to claim 11, wherein: The second information includes the one or more sounding reference signal resource set identifiers, and each of the one or more sounding reference signal resource set identifiers corresponds to each of the one or more sounding reference signal spatial relation information identifiers.

17. The network unit according to claim 16, wherein: The one or more sounding reference signal resource set identifiers include a bitmap, and each bit of the bitmap corresponds to a sounding reference signal resource set identifier among the one or more sounding reference signal resource set identifiers.

18. The network unit according to claim 11, wherein: The second information includes the one or more sounding reference signal resource identifiers, the one or more sounding reference signal resource identifiers include a bitmap, and each bit of the bitmap corresponds to a sounding reference signal resource identifier among the one or more sounding reference signal resource identifiers.

19. The network unit according to claim 11, wherein: The transmitter transmits fourth information indicating a sounding reference signal resource set, and each sounding reference signal resource in the sounding reference signal resource set has the same sounding reference signal spatial relationship information.

20. The network unit according to claim 19, wherein: The sounding reference signal resource set is used for non-codebook use.

21. A method performed by a remote unit, comprising: receiving first information indicating sounding reference signal spatial relationship information for a sounding reference signal resource, wherein the sounding reference signal spatial relationship information comprises: a plurality of sounding reference signal spatial relation information identifiers; and a sounding reference signal spatial relation information reference signal corresponding to each sounding reference signal spatial relation information identifier of the plurality of sounding reference signal spatial relation information identifiers; and receiving second information indicating an update of the sounding reference signal spatial relationship information of the sounding reference signal resource, wherein the second information comprises: serving cell identifier; bandwidth section identifier; one or more sounding reference signal resource identifiers, one or more sounding reference signal resource set identifiers, or a combination thereof; and One or more sounding reference signal spatial relation information identifiers of the plurality of sounding reference signal spatial relation information identifiers, wherein each of the one or more sounding reference signal resource identifiers corresponds to each of the one or more sounding reference signal spatial relation information identifiers.

22. The method according to claim 21, wherein: The first information is received using radio resource control signaling.

23. The method according to claim 21, wherein: The second information is received using a medium access control control element.

24. The method according to claim 21, wherein: The sounding reference signal resource is aperiodic or semi-persistent.

25. The method of claim 21, further comprising: Third information indicating one or more simultaneous spatial relation cell lists for updating the sounding reference signal spatial relation information using radio resource control signaling is received.

26. The method of claim 25, further comprising, in response to receiving the second information and the third information, updating each of the component carriers in the simultaneous spatial relation cell list of the one or more simultaneous spatial relation cell lists based on the second information.

27. The method of claim 21, wherein: The second information includes the one or more sounding reference signal resource set identifiers, and each of the one or more sounding reference signal resource set identifiers corresponds to each of the one or more sounding reference signal spatial relation information identifiers.

28. The method according to claim 27, wherein: The one or more sounding reference signal resource set identifiers include a bitmap, and each bit of the bitmap corresponds to a sounding reference signal resource set identifier among the one or more sounding reference signal resource set identifiers.

29. The method according to claim 21, wherein: The second information includes the one or more sounding reference signal resource identifiers, the one or more sounding reference signal resource identifiers include a bitmap, and each bit of the bitmap corresponds to a sounding reference signal resource identifier among the one or more sounding reference signal resource identifiers.

30. The method of claim 21, further comprising receiving fourth information indicating a sounding reference signal resource set, wherein each sounding reference signal resource in the sounding reference signal resource set has the same sounding reference signal spatial relationship information.

31. The method according to claim 30, wherein: The sounding reference signal resource set is used for non-codebook use.

32. The method of claim 21, further comprising updating the sounding reference signal spatial relationship information of the sounding reference signal resource based on the second information.

33. A remote unit comprising: A receiver, the receiver: receiving first information indicating sounding reference signal spatial relationship information for a sounding reference signal resource, wherein the sounding reference signal spatial relationship information comprises: a plurality of sounding reference signal spatial relation information identifiers; and a sounding reference signal spatial relation information reference signal corresponding to each sounding reference signal spatial relation information identifier of the plurality of sounding reference signal spatial relation information identifiers; and receiving second information indicating an update of the sounding reference signal spatial relationship information of the sounding reference signal resource, wherein the second information comprises: serving cell identifier; bandwidth section identifier; one or more sounding reference signal resource identifiers, one or more sounding reference signal resource set identifiers, or a combination thereof; and One or more sounding reference signal spatial relation information identifiers of the plurality of sounding reference signal spatial relation information identifiers, wherein each of the one or more sounding reference signal resource identifiers corresponds to each of the one or more sounding reference signal spatial relation information identifiers.

34. The remote unit of claim 33, wherein: The first information is received using radio resource control signaling.

35. The remote unit of claim 33, wherein: The second information is received using a medium access control control element.

36. The remote unit of claim 33, wherein: The sounding reference signal resource is aperiodic or semi-persistent.

37. The remote unit of claim 33, wherein: The receiver receives third information indicating one or more simultaneous spatial relation cell lists for updating the sounding reference signal spatial relation information using radio resource control signaling.

38. The remote unit of claim 37, further comprising a processor that updates each of the component carriers in the simultaneous spatial relationship cell list in the one or more simultaneous spatial relationship cell lists based on the second information in response to receiving the second information and the third information.

39. The remote unit of claim 33, wherein: The second information includes the one or more sounding reference signal resource set identifiers, and each of the one or more sounding reference signal resource set identifiers corresponds to each of the one or more sounding reference signal spatial relation information identifiers.

40. The remote unit of claim 39, wherein: The one or more sounding reference signal resource set identifiers include a bitmap, and each bit of the bitmap corresponds to a sounding reference signal resource set identifier among the one or more sounding reference signal resource set identifiers.

41. The remote unit of claim 33, wherein: The second information includes the one or more sounding reference signal resource identifiers, the one or more sounding reference signal resource identifiers include a bitmap, and each bit of the bitmap corresponds to a sounding reference signal resource identifier among the one or more sounding reference signal resource identifiers.

42. The remote unit of claim 33, wherein: The receiver receives fourth information indicating a sounding reference signal resource set, and each sounding reference signal resource in the sounding reference signal resource set has the same sounding reference signal spatial relationship information.

43. The remote unit of claim 42, wherein: The sounding reference signal resource set is used for non-codebook use.

44. The remote unit of claim 33, wherein: The method further includes a processor, which updates the sounding reference signal spatial relationship information of the sounding reference signal resource based on the second information.

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