Physical uplink shared channel transmission using stop indication

Abstract

Apparatus, methods, and systems are disclosed for physical uplink shared channel transmission using a stop instruction. One method (500) includes transmitting (502) a physical uplink shared channel transmission in an autonomous uplink configured licensed resource after performing a listen-before-speak procedure. In various embodiments, the method (500) includes receiving (504) a stop instruction in response to transmitting the physical uplink shared channel transmission, wherein the stop instruction instructs a group of user equipment not to transmit in overlapping configured licensed resources during a time period corresponding to a spatial filter.

Description

[0001] Cross-reference of related applications

[0002] This application claims priority to U.S. Patent Application No. 63 / 000,028, filed March 26, 2020, entitled “Apparatus, Methods, and Systems for a Configurated Grant Procedure for Spatial LBT,” the entire contents of which are incorporated herein by reference. Technical Field

[0003] The subject matter disclosed herein generally relates to wireless communication, and more specifically, to physical uplink shared channel transmission using stop instructions. Background Technology

[0004] In some wireless communication networks, interference between signals from different devices can mix with unwanted transmissions. Summary of the Invention

[0005] A method for performing physical uplink shared channel transmission using a stop indication is disclosed. The apparatus and system also perform the functions of the method. One embodiment of the method includes transmitting a physical uplink shared channel transmission in an autonomous uplink configured licensed resource after performing a listen-before-speak procedure. In various embodiments, the method includes receiving a stop indication in response to transmitting the physical uplink shared channel transmission, wherein the stop indication instructs a group of user equipment not to transmit in overlapping configured licensed resources during a time period corresponding to a spatial filter.

[0006] An apparatus for physical uplink shared channel transmission using a stop indication includes a transmitter that, after performing a listen-before-speak procedure, transmits a physical uplink shared channel transmission in autonomous uplink configured authorized resources. In various embodiments, the apparatus includes a receiver that receives a stop indication in response to transmitting the physical uplink shared channel transmission, wherein the stop indication instructs a group of user equipment not to transmit in overlapping configured authorized resources within a time period corresponding to a spatial filter.

[0007] In some embodiments, a method for performing physical uplink shared channel transmission using a stop indication includes receiving a physical uplink shared channel transmission in an autonomous uplink configured licensed resource. In various embodiments, the method includes transmitting a stop indication in response to receiving the physical uplink shared channel transmission, wherein the stop indication instructs a group of user equipment not to transmit in overlapping configured licensed resources during a time period corresponding to a spatial filter.

[0008] In some embodiments, an apparatus for physical uplink shared channel transmission using a stop indication includes a receiver that receives physical uplink shared channel transmissions in autonomous uplink configured licensed resources. In various embodiments, the apparatus includes a transmitter that transmits a stop indication in response to receiving the physical uplink shared channel transmission, wherein the stop indication instructs a group of user equipment not to transmit in overlapping configured licensed resources during a time period corresponding to a spatial filter. Attached Figure Description

[0009] A more specific description of the embodiments briefly described above will be presented by referring to specific embodiments illustrated in the accompanying drawings. It should be understood that these drawings depict only some embodiments and are therefore not intended to be limiting; the embodiments will be described and explained with additional specificity and detail using the accompanying drawings, in which:

[0010] Figure 1 This is a schematic block diagram illustrating an embodiment of a wireless communication system for physical uplink shared channel transmission using a stop instruction;

[0011] Figure 2 This is a schematic block diagram illustrating one embodiment of a device that can be used for physical uplink shared channel transmission using a stop instruction;

[0012] Figure 3 This is a schematic block diagram illustrating one embodiment of a device that can be used for physical uplink shared channel transmission using a stop instruction;

[0013] Figure 4 This is a diagram illustrating an example of a table containing fields for AUL-UCI;

[0014] Figure 5 This is a flowchart illustrating an embodiment of a method for physical uplink shared channel transmission using a stop indication; and

[0015] Figure 6 This is a flowchart illustrating another embodiment of a method for transmitting a physical uplink shared channel using a stop instruction. Detailed Implementation

[0016] As those skilled in the art will understand, aspects of the embodiments may be embodied as systems, devices, methods, or program products. Therefore, embodiments may take the form of entirely hardware embodiments, entirely software embodiments (including firmware, resident software, microcode, etc.), or embodiments combining software and hardware aspects, which are generally referred to herein as “circuit,” “module,” or “system.” Furthermore, embodiments may take the form of program products 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-transitory, and / or non-transferable. The storage device may not embody signals. In some embodiments, the storage device employs only signals for accessing the code.

[0017] Certain functional units described in this invention may be designated as modules to more specifically emphasize their implementation independence. For example, a module may be implemented as hardware circuitry comprising custom-designed very large-scale integration (“VLSI”) circuitry or gate arrays, off-the-shelf semiconductors such as logic chips, transistors, or other discrete components. Modules may also be implemented in programmable hardware devices such as field-programmable gate arrays, programmable array logic, programmable logic devices, or the like.

[0018] Modules can also be implemented in code and / or software to be executed by various types of processors. For example, an identified code module may contain one or more physical or logical blocks of executable code, which may be organized, for example, as objects, programs, or functions. However, the executable files of the identified modules do not need to be physically located together, but may contain different instructions stored in different locations that, when logically linked together, encompass the module and implement the stated purpose of the module.

[0019] In fact, a code module can be a single instruction or multiple instructions, and can even be distributed across several different code segments, different programs, and across several memory devices. Similarly, operational data can be identified and described within a module, and can be represented in any suitable form and organized within any suitable type of data structure. Operational data can be collected as a single dataset or distributed across different locations, including various computer-readable storage devices. Where a module or part of a module is implemented in software, the software portion is stored on one or more computer-readable storage devices.

[0020] Any combination of one or more computer-readable media may be used. The computer-readable media may be a computer-readable storage medium. The computer-readable storage medium may be a storage device for storing code. For example, the storage device may be (but is not limited to) an electronic, magnetic, optical, electromagnetic, infrared, holographic, micromechanical, or semiconductor system, device, or apparatus, or any suitable combination thereof.

[0021] More specific examples of storage devices (a non-exhaustive list) will include the following: electrical connections having one or more wires, portable computer floppy disks, hard disks, random access memory (“RAM”), read-only memory (“ROM”), erasable programmable read-only memory (“EPROM” or flash memory), portable optical disc read-only memory (“CD-ROM”), optical storage devices, magnetic storage devices, or any suitable combination of the foregoing. In the context of this document, computer-readable storage media can be any tangible medium containing or storing programs for use by or in connection with an instruction execution system, device, or apparatus.

[0022] The code used to implement 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++, or similar, and conventional procedural programming languages ​​such as the "C" programming language or similar, and / or machine languages ​​such as assembly language. The code may execute entirely on the user's computer, partially on the user's computer, as a standalone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In the latter case, the remote computer may be connected to the user's computer via any type of network, including local area networks ("LANs") or wide area networks ("WANs"), or may be connected to an external computer (e.g., via the Internet provided by an Internet service provider).

[0023] In this specification, references to "an embodiment," "embodiment," or similar language indicate that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Therefore, unless expressly stated otherwise, the phrases "in an embodiment," "in an embodiment," and similar language throughout this specification may (but not necessarily) refer to the same embodiment, but rather to "one or more, but not all, embodiments." Unless expressly stated otherwise, the terms "comprising," "including," "having," and variations thereof mean "comprising (but not limited to)." Unless expressly stated otherwise, the list of items does not imply that any or all items are mutually exclusive. Unless expressly stated otherwise, the terms "a" and "described" also mean "one or more."

[0024] Furthermore, the features, structures, or characteristics described in the embodiments can be combined in any suitable manner. Numerous specific details, such as examples of programming, software modules, user selection, network transactions, database queries, database structures, hardware modules, hardware circuits, hardware chips, etc., are provided in the following description to provide a thorough understanding of the embodiments. However, those skilled in the art will recognize that the embodiments can be practiced without one or more of the specific details, or with other methods, components, materials, etc. In other instances, well-known structures, materials, or operations have not been shown or described in detail to avoid obscuring aspects of the embodiments.

[0025] The following description of aspects of the embodiments is based on schematic flowcharts and / or block diagrams of methods, apparatus, systems, and program products according to the embodiments. It will be understood that each block of the schematic flowcharts and / or block diagrams, and combinations of blocks in the schematic flowcharts and / or block diagrams, can be implemented by code. The code can be provided to a processor of a general-purpose computer, special-purpose computer, or other programmable data processing apparatus to produce a machine, such that instructions executable via the processor of the computer or other programmable data processing apparatus create means for implementing the functions / actions specified in the blocks of the schematic flowcharts and / or block diagrams.

[0026] The code may also be stored in a storage device, which may instruct a computer, other programmable data processing device or other device to function in a particular manner, such that the instructions stored in the storage device produce an article of writing containing instructions that implement the functions / actions specified in the schematic flowcharts and / or schematic block diagrams.

[0027] The code may also be loaded onto a computer, other programmable data processing apparatus or other device, such that a series of operational steps are executed on the computer, other programmable apparatus or other device to produce a computer-implemented process, such that the code executing on the computer or other programmable apparatus provides a process for implementing the functions / actions specified in the schematic flowchart and / or schematic block diagram.

[0028] The schematic flowcharts and / or block diagrams in the drawings illustrate the architecture, functionality, and operation of possible implementations of devices, systems, methods, and program products according to various embodiments. In this regard, each block in the schematic flowcharts and / or block diagrams may represent a code module, segment, or portion, which contains one or more executable instructions for implementing a specified logical function.

[0029] It should also be noted that in some alternative implementations, the functions marked in the boxes may occur in a different order than those marked in the diagram. For example, two blocks shown consecutively may actually be executed substantially simultaneously, or the boxes may sometimes be executed in reverse order, depending on the functionality involved. Other steps and methods that are functionally, logically, or effectively equivalent to one or more blocks or portions thereof in the illustrated diagram are conceivable.

[0030] While various arrow and line types may be used in flowcharts and / or block diagrams, it should be understood that this does not limit the scope of the corresponding embodiments. In fact, some arrows or other connectors may be used only to indicate the logical flow of the depicted embodiment. For example, an arrow may indicate a wait or monitoring period of unspecified duration between enumeration steps in a depicted embodiment. It will also be noted that each module of the block diagram and / or flowchart, and combinations of boxes in the block diagram and / or flowchart, may be implemented by a system based on dedicated hardware or a combination of dedicated hardware and code that performs the specified function or action.

[0031] The description of an element in each figure may refer to elements in previous figures. Similar numbers refer to similar elements in all figures, including alternative embodiments of similar elements.

[0032] Figure 1 An embodiment of a wireless communication system 100 for physical uplink shared channel transmission using a stop instruction is described. In one embodiment, the wireless communication system 100 includes a remote unit 102 and a network unit 104. Although Figure 1 A specific number of remote units 102 and network units 104 are depicted, but those 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.

[0033] In one embodiment, remote unit 102 may include a computing device, such as a desktop computer, laptop computer, personal digital assistant (“PDA”), tablet computer, smartphone, smart TV (e.g., a TV connected to the Internet), set-top box, game console, security system (including security cameras), in-vehicle computer, network device (e.g., router, switch, modem), aircraft, drone, or the like. In some embodiments, remote unit 102 includes a wearable device, such as a smartwatch, fitness tracker, optical head-mounted display, or the like. Furthermore, remote unit 102 may be referred to as a user unit, mobile phone, mobile station, user, terminal, mobile terminal, fixed terminal, user station, user equipment (“UE”), user terminal, device, or named using other terms used in the art. Remote unit 102 may communicate directly with one or more of network units 104 via UL communication signals. In some embodiments, remote unit 102 may communicate directly with other remote units 102 via sidelink communication.

[0034] Network unit 104 may be distributed across a geographical area. In some embodiments, network unit 104 may also be referred to as and / or may include access point, access terminal, base station, base station, Node B, evolved Node B (“eNB”), 5G Node B (“gNB”), home Node B, relay node, device, core network, air server, radio access node, access point (“AP”), new radio (“NR”), network entity, access and mobility management function (“AMF”), unified data management (“UDM”), unified database (“UDR”), UDM / UDR, policy control function (“PCF”), radio access network (“RAN”), network slice selection function (“NSSF”), operation, supervision and management (“OAM”), session management function (“SMF”), user plane function (“UPF”), application function, authentication server function (“AUSF”), security anchor functionality (“SEAF”), trusted non-3GPP gateway function (“TNGF”), or any other term used in the field. 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 the public switched telephone network. These and other elements of the radio access and core networks are not described but are well known to those skilled in the art.

[0035] In one implementation, the wireless communication system 100 conforms to the NR protocol standardized in the 3rd Generation Partnership Project (“3GPP”), wherein network unit 104 uses an OFDM modulation scheme to transmit on the downlink (“DL”), and remote unit 102 uses a single-carrier frequency division multiple access (“SC-FDMA”) or orthogonal frequency division multiplexing (“OFDM”) scheme to transmit on the uplink (“UL”). However, more generally, the wireless communication system 100 may implement other open or proprietary communication protocols, such as WiMAX, IEEE 802.11 variants, GSM, GPRS, UMTS, LTE variants, and CDMA2000. Other protocols include ZigBee and Sigfoxx. This disclosure is not intended to limit it to any particular wireless communication system architecture or protocol implementation.

[0036] Network unit 104 can serve several remote units 102 within a service area (e.g., a cell or cell sector) via a wireless communication link. Network unit 104 transmits DL communication signals to serve the remote units 102 in the time domain, frequency domain, and / or spatial domain.

[0037] In various embodiments, remote unit 102 may transmit physical uplink shared channel (PHS) transmissions in autonomous uplink configured authorized resources after performing a listen-before-speak procedure. In some embodiments, remote unit 102 may receive a stop indication in response to transmitting a PHS transmission. The stop indication instructs a group of user equipment not to transmit in overlapping configured authorized resources during a time period corresponding to a spatial filter. Therefore, remote unit 102 can be used to perform PHS transmissions using a stop indication.

[0038] In some embodiments, network unit 104 may receive physical uplink shared channel transmissions in autonomous uplink configured licensed resources. In various embodiments, network unit 104 may transmit a stop indication in response to receiving physical uplink shared channel transmissions. The stop indication instructs a group of user equipment not to transmit in overlapping configured licensed resources during a time period corresponding to a spatial filter. Therefore, network unit 104 may be used to perform physical uplink shared channel transmissions using a stop indication.

[0039] Figure 2 An embodiment of a device 200 for use in physical uplink shared channel transmission using a stop indication is depicted. Device 200 includes one embodiment of a remote unit 102. Furthermore, the 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, the input device 206 and the display 208 are combined into a single device, such as a touchscreen. In some embodiments, the remote unit 102 may not include any input device 206 and / or display 208. In various embodiments, the remote unit 102 may include one or more of the processor 202, memory 204, transmitter 210, and receiver 212, and may not include an input device 206 and / or display 208.

[0040] In one embodiment, processor 202 may include any known controller capable of executing computer-readable instructions and / or performing logical operations. For example, processor 202 may be a microcontroller, microprocessor, central processing unit (“CPU”), graphics processing unit (“GPU”), auxiliary processing unit, field-programmable gate array (“FPGA”), or similar programmable controller. In some embodiments, processor 202 executes instructions stored in memory 204 to perform the methods and routines described herein. Processor 202 is communicatively coupled to memory 204, input device 206, display 208, transmitter 210, and receiver 212.

[0041] 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 disk drive, flash memory, or any other suitable non-volatile computer storage device. In some embodiments, memory 204 includes both volatile 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 algorithms operating on remote unit 102.

[0042] In one embodiment, input device 206 may include any known computer input device, including a touch panel, buttons, keyboard, pen, microphone, or the like. In some embodiments, for example, input device 206 may be integrated with display 208 as a touchscreen or similar touch-sensitive display. In some embodiments, input device 206 includes a touchscreen, enabling text input using a virtual keyboard displayed on the touchscreen and / or by handwriting on the touchscreen. In some embodiments, input device 206 includes two or more different devices, such as a keyboard and a touch panel.

[0043] In one embodiment, display 208 may include any known electronically controllable display or display device. Display 208 may be designed to output visual, audible, 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) a liquid crystal display (“LCD”), a light-emitting diode (“LED”) display, an organic light-emitting diode (“OLED”) display, a projector, or a similar display device capable of outputting images, text, or the like to a user. As another non-limiting example, display 208 may include a wearable display, such as a smartwatch, smart glasses, a heads-up display, or the like. Furthermore, display 208 may be a component of a smartphone, personal digital assistant, television, desktop computer, laptop computer, personal computer, vehicle dashboard, or the like.

[0044] In some embodiments, display 208 includes one or more speakers for generating sound. For example, display 208 may generate audible alarms or notifications (e.g., beeps or buzzers). In some embodiments, display 208 includes one or more haptic devices for generating vibration, motion, or other haptic feedback. In some embodiments, all or part of display 208 may be integrated with input device 206. For example, input device 206 and display 208 may form a touchscreen or similar touch-sensitive display. In other embodiments, display 208 may be located near input device 206.

[0045] In one embodiment, transmitter 210 may transmit physical uplink shared channel transmissions in autonomous uplink configured authorized resources after performing a listen-before-speak procedure. In various embodiments, receiver 212 receives a stop indication in response to the transmission of physical uplink shared channel transmissions. The stop indication instructs a group of user equipment not to transmit in overlapping configured authorized resources during a time period corresponding to a spatial filter.

[0046] Although only one transmitter 210 and one receiver 212 are described, the remote unit 102 may have any suitable number of transmitters 210 and receivers 212. The transmitters 210 and receivers 212 may be of any suitable type. In one embodiment, the transmitters 210 and receivers 212 may be part of a transceiver.

[0047] Figure 3An embodiment of a device 300 for use in physical uplink shared channel transmission using a stop instruction is depicted. Device 300 includes one embodiment of a network unit 104. Furthermore, 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 will be understood, processor 302, memory 304, input device 306, display 308, transmitter 310, and receiver 312 may be substantially similar to processor 202, memory 204, input device 206, display 208, transmitter 210, and receiver 212 of remote unit 102, respectively.

[0048] In some embodiments, receiver 312 receives physical uplink shared channel transmissions in autonomous uplink configured licensed resources. In various embodiments, transmitter 310 issues a transmit stop indication in response to receiving physical uplink shared channel transmissions. The stop indication instructs a group of user equipment not to transmit in overlapping configured licensed resources during a time period corresponding to a spatial filter.

[0049] In various embodiments, interference mitigation may be used for UL channel access in unlicensed frequency bands (e.g., 24.25 GHz to 52.6 GHz (“FR2”) or 52.6 GHz to 71 GHz (“FR4”)). In some embodiments, beam-based transmission may be used for unlicensed spectrum outside of FR2, and sources of interference such as Wi-Fi access points and / or other NR networks operating in these bands may have directional transmissions. In some embodiments, performing Listen-Before-Speak (“LBT”) only on the TX UE is attributed to the node hidden from the TX UE and cannot guarantee interference-free reception. In various embodiments, gNB assistance may be present for interference-free UL reception.

[0050] In some embodiments, such as in New Radio Unlicensed (“NR-U”), channel access in both the downlink and uplink may rely on LBTs. In such embodiments, the gNB and / or UE senses the channel to determine whether ongoing communication exists before any transmission. In various embodiments, if the communication channel is a wideband unlicensed carrier, the Clear Channel Assessment (“CCA”) procedure may rely on detecting energy levels on multiple subbands of the communication channel. In some embodiments, the LBT in NR-U cannot use beamforming and may use only omnidirectional LBTs.

[0051] In some embodiments, the NR-U LBT procedure for channel access may be performed as follows: 1) If the start of a new transmission burst always involves an LBT with exponential backoff, then both the gNB-initiated COT and the UE-initiated COT may use Category 4 LBT (e.g., with the exception that the duration of the DRS must be at most one millisecond and is not multiplexed with a unicast physical downlink shared channel (“PDSCH”); and 2) If the interval from the end of the previous transmission does not exceed 16 μs (e.g., otherwise Category 2 LBT must be used and the interval cannot exceed 25 μs), then the UL transmission within the gNB-initiated COT or subsequent DL transmission within the UE or gNB-initiated COT may be transmitted immediately without sensing. Figure 4 This describes an embodiment of the Autonomous Uplink Control Information (“AUL-UCI”) and the corresponding bit width of field 400.

[0052] In some embodiments, if the gNB transmits a stop indicator in a multicast (“GC”) downlink control information (“DCI”) based on a request message from a UE or based on autonomous uplink (“A-UL”) transmission, then prepare to transmit (“RTS”) and / or clear transmit (“CTS”) can be used for CG transmission. In such embodiments, the stop indicator transmitted to a group of UEs using multicast downlink control information (“GC-DCI”) may contain information about the time-frequency resource grid, and bit fields may be used to stop any UL transmissions on CG resources overlapping with the indicated time-frequency resource grid. Furthermore, in such embodiments, the duration for muting the indicated time-frequency resource may be represented by a time slot, symbol, UL to DL, frame end, and / or remaining channel occupancy duration. In one embodiment, a separate unicast (“UC”) DCI is transmitted to the requesting UE as a clear transmit command, and in another embodiment, the clear transmit command may be part of the GC-DCI. In various embodiments, a timer may be used to monitor the reception of the stop indicator and / or clear transmit. In some embodiments, spatial filter information may be included in the GC-DCI to facilitate other group UEs not using the indicated spatial filter to transmit CG resources. In some embodiments involving multi-panel and / or multi-beam transmission of request messages, A-UL transmission may be used.

[0053] In some embodiments, the gNB suspends configured licensed transmissions during the remaining channel occupancy time (“COT”) in COT sharing. In various embodiments, the gNB may use the corresponding A-UL in the CG resource to receive a UE-initiated COT sharing indicator from the UE (e.g., requesting the UE) in the autonomous uplink control information (“A-UCI”).

[0054] In some embodiments, the gNB may transmit an indicator in the GC-DCI to all UEs (e.g., UEs configured to monitor GC-DCI) to stop and / or cancel further UL transmissions in the CG resource. In such embodiments, the indicator may be used to mute the duration of the CG resource, mute the UE ID of the requesting UE (e.g., which may transmit on the CG resource), mute the spatial filter corresponding to the requesting UE, mute the TCI information corresponding to the requesting UE, and / or mute the spatial relationship information corresponding to the requesting UE. In various embodiments, the A-UCI field or MAC CE transmitted by the requesting UE may contain a field for the gNB to transmit a stop indicator for a group of UEs. In some embodiments, the stop indicator transmission may be configured semi-statically based on channel access priority levels.

[0055] In various embodiments, the GC-DCI includes a bit flag, time and frequency (“T / F”) resources corresponding to the requesting UE's CG resource, the UE ID in the time slot, the duration, and / or a symbol indicating the silence duration of the CG resource. In such embodiments, the duration may be the remaining channel occupancy period, which the UE can use until the next UL to DL time slot, and the duration may extend until the end of the frame period. In some embodiments, the GC-DCI may contain spatial filters, TCI information, and / or spatial relation information to which silence of the CG resource is applicable.

[0056] In some embodiments, a single flag in the GC-PDCCH DCI format can notify a group of UEs to mute and / or stop transmissions in T / F resources that partially or completely overlap with the T / F resources of the requesting UE. In such embodiments, the gNB can configure the UE to monitor GC-DCI using a new Radio Network Temporary Identifier (“RNTI”), and the new RNTI can be used to mask the Cyclic Redundancy Checksum (“CRC”) of GC-DCI.

[0057] In various embodiments, a flag may not be present in the DCI, and a group of UEs may mute or not transmit for a specified duration in overlapping configured authorized (“CG”) resources after receiving a GC-DCI with a new RNTI.

[0058] In some embodiments, if the GC-DCI field contains spatial filters, TCI information, and / or spatial relation information, then a group of UEs may transmit in the designated CG resources without using the specified and / or indicated spatial filters or using the same spatial domain transmission filters for receiving reference signals (“RS”) associated with the TCI status information and / or spatial relation information.

[0059] In some embodiments, after receiving an A-UCI field or MAC control element (“CE”) transmitted by the requesting UE, the gNB may transmit GC-DCI to all UEs via the downlink. In various embodiments, the stop indicator transmitted by the gNB may be configured semi-statically based on channel access priority levels. In some embodiments, the gNB may use the same spatial filter used for receiving the initial request message or A-UL to transmit GC-DCI and / or UCI-DCI (e.g., if the SRS is used as the RS associated with TCI status information and / or spatial relation information), or use the same spatial transmission filter used by the requesting UE to transmit the initial request message or A-UL for transmitting the RS associated with TCI status information and / or spatial relation information. In such embodiments, the gNB may transmit GC-DCI in adjacent beams and / or using other spatial transmission filters.

[0060] In various embodiments, after receiving a GC-DCI with its UE ID, the UE can transmit in the CG resource for a specified duration and in a specified spatial filter.

[0061] In some embodiments, GC-DCI may include multiple cancel, mute, and / or clear transmission indicators corresponding to the same and / or different requesting UEs associated with different time and / or frequency resources and / or receiving with different spatial receive filters, beams, antenna panels, and / or subarrays.

[0062] In some embodiments, the gNB may transmit two DCIs and one GC-DCI to all UEs to stop further UL transmissions in the CG resource, and transmit a unicast DCI to notify the requesting UE of a clear transmission command containing the UE ID, transmission duration, and / or a specified spatial filter. In one example of such embodiments, the unicast DCI may indicate to the requesting UE updated spatial filters, TCI information, spatial relation information, and / or SRS resource indicators to be used for subsequent transmissions. In another example, the requesting UE may use the same spatial transmission filter used for the initial request message or A-UL transmission.

[0063] In various embodiments, for example, if the GC-DCI is received before the UC-DCI, then the requesting UE may only begin further UL transmission in the CG resource after receiving the clear transmission UC-DCI from the gNB.

[0064] In some embodiments, the UE starts a timer when transmitting to the gNB in ​​the A-UL of the CG resource and may stop the timer when a stop indicator is received in the GC-DCI or UC-DCI. In various embodiments, if the UE does not receive the GC-DCI and / or UCI-DCI, after the timer expires, the UE starts transmitting a new transport block (“TB”) in the CG resource using the same or a different beam and / or panel, and retransmits the same TB in the CG resource using the same or a different beam and / or panel. In some embodiments, the UE includes a field in the A-UCI and / or Media Access Control element (“MAC-CE”) to transmit a stop indicator for each UL transmission until the UE receives the GC-DCI from the gNB.

[0065] In some embodiments, the UE uses multiple beams, panels, and / or autonomous uplink (“AUL”) resources to transmit data.

[0066] In various embodiments, upon successful Cat 4LBT and after successful reception of UL data from any of the beams and / or panels, the UE transmits A-UL in CG resources using multiple beams and / or panels. In such embodiments, the gNB may transmit a stop indicator to the requesting UE in all UEs' GC-DCI and / or UC-DCI. In some embodiments, the gNB may use the same spatial filter for receiving the initial request message or A-UL (e.g., if the SRS is used as the RS associated with TCI status information and / or spatial relation information), or the same spatial transmission filter for transmitting the RS associated with TCI status information and / or spatial relation information, to transmit the GC-DCI and / or UC-DCI, said transmission filter being used by the requesting UE to transmit the initial request message or A-UL. In such embodiments, the gNB may transmit GC-DCI in adjacent beams.

[0067] In some embodiments, each AUL resource of the UE may be associated with an individual beam and / or panel (e.g., UL TCI status information and / or spatial relation information). In such embodiments, the gNB may indicate at least the time-frequency resource grid and bit fields via a multicast physical downlink control channel (“GC-PDCCH”) to stop any UL transmissions on AUL resources overlapping with the time-frequency resource grid. Furthermore, in such embodiments, a group of UEs may stop UL transmissions on associated beams and / or panels in the remaining channel occupancy duration after receiving a stop indication. In various embodiments, the UE transmits requests for information using multiple panels and / or beams prior to UL data transmission.

[0068] In various embodiments, the UE transmits a request message using multiple beams and / or panels whose LBTs are successful before performing A-UL data transmission, and after successfully receiving the request message from any beam and / or panel, the gNB transmits a stop indicator for all UEs and / or UC-DCI in the GC-PDCCH (e.g., the UC-DCI may be similar to a clear transmission). In such embodiments, the request message may contain the UE ID, CG resource configuration, channel access priority level, maximum channel occupancy time (“MCOT”) duration, and / or a request for the stop indicator. In some embodiments, the request message may be transmitted in a sequence of the Physical Uplink Control Channel (“PUCCH”), Physical Uplink Shared Channel (“PUSCH”), MAC CE, and / or a similar SRS.

[0069] In some embodiments, gNB behavior may include receiving multiple copy request messages or AULs from the UE.

[0070] In some embodiments, the gNB may receive multiple request messages or A-ULs for the same transmission from multiple UE beams and / or panels where its LBT is successful, and the behavior of the gNB may be defined to detect requests for duplicates of the same transmission and not to transmit more than one stop indicator and / or clear transmission command for the same UE.

[0071] In various embodiments, the gNB checks whether it has the same UERNTI and / or CG resource configuration based on multiple request messages and / or A-UL transmissions. In such embodiments, the gNB decides to transmit only one stop indicator and / or clear transmission command. In some embodiments, if the UE transmits an A-UL transmission initial request using different CG resources, the gNB checks the UERNTI, channel access priority level, MCOT duration, and / or CG resource size to determine whether to transmit only one or multiple (e.g., associated with different CG resources) stop indicators and / or clear transmission commands.

[0072] In some embodiments, if the request message is sequence-based, the UE may request that the same sequence from multiple beams and / or panels be used for the same transmission. In such embodiments, the gNB may check whether the received sequences from all received beams and / or panels are identical. If the gNB determines that the sequences from all received beams and / or panels are identical, then the gNB implies repetition and / or duplication; otherwise, the UE requests a different transmission.

[0073] In the various embodiments described herein, benefits may include avoiding gNB interference with PUSCH data. Furthermore, the UE and gNB may cooperate to select the optimal UE transmit (“TX”) panel and / or beam, which facilitates interference-free UL data reception for the requesting UE and silences other UL transmissions used for the requested CG resource.

[0074] In some embodiments, an antenna port may be defined such that a channel through which another symbol on the same antenna port is transmitted can be inferred from a channel through which a symbol on the antenna port is transmitted.

[0075] In some embodiments, the two antenna ports are referred to as quasi-co-location (“QCL”) if the large-scale properties of a channel that transmits symbols on one antenna port can be inferred from the channel that transmits symbols on another antenna port. The large-scale properties may include one or more of delay spread, Doppler spread, Doppler shift, average gain, average delay, and / or spatial reception (“RX”) parameters. The two antenna ports may be quasi-co-located with respect to a subset of the large-scale properties, and the different subsets of the large-scale properties may be indicated by the QCL type. For example, the QCL type may take one of the following values: 1) 'QCL-TypeA': {Doppler shift, Doppler spread, average delay, delay spread}; 2) 'QCL-TypeB': {Doppler shift, Doppler spread}; 3) 'QCL-TypeC': {Doppler shift, average delay}; and 4) 'QCL-TypeD': {spatial Rx parameter}.

[0076] In various embodiments, the RX parameters may include one or more of the following: angle of arrival (“AoA”), main AoA, average AoA, angular spread, power angular spectrum of AoA (“PAS”), average departure angle (“AoD”), PAS of AoD, transmit and / or receive channel association, transmit and receive beamforming and / or spatial channel association.

[0077] In some embodiments, an "antenna port" may be a logical port that corresponds to a beam (e.g., derived from beamforming) or a physical antenna on the device. In some embodiments, a physical antenna may be directly mapped to a single antenna port, where the antenna port corresponds to an actual physical antenna. In various embodiments, a set of physical antennas, a subset of physical antennas, an antenna group, an antenna array, or an antenna subarray may be mapped to one or more antenna ports after applying composite weights and / or cyclic delays to the signals on each physical antenna. A physical antenna group may have antennas from a single module or panel or from multiple modules or panels. Weights may be fixed, as in antenna virtualization schemes such as cyclic delay diversity ("CDD"). The procedure for deriving antenna ports from physical antennas may be device-specific and transparent to other devices.

[0078] In some embodiments, the UE antenna panel may be a physical or logical antenna array comprising a set of antenna elements or antenna ports sharing a common or significant portion of a radio frequency (“RF”) chain (e.g., in-phase and / or quadrature (“I / Q”) modulators, analog-to-digital (“A / D”) converters, local oscillators, phase-shift networks). The UE antenna panel or UE panel may be a logical entity having physical UE antennas mapped to logical entities. The mapping from physical UE antennas to logical entities may depend on the UE implementation. Communication (e.g., receiving or transmitting) on ​​at least a subset of antenna elements or antenna ports (e.g., active elements) that affect the energy radiating from the antenna panel may require biasing or turning on the RF chain, resulting in current consumption or power consumption in the UE associated with the antenna panel (e.g., power consumption of power amplifiers and / or low-noise amplifiers (“LNA”) associated with the antenna elements or antenna ports). The phrase “affects radiated energy” as used herein is not limited to transmitting functions but also covers receiving functions. Therefore, antenna elements that act on radiated energy can be coupled simultaneously or sequentially to a transmitter to transmit radio frequency energy, or coupled to a receiver to receive radio frequency energy, or typically coupled to a transceiver to perform its intended function. Communication on the active elements of the antenna panel enables the generation of radiation patterns or beams.

[0079] In some embodiments, depending on the UE's own implementation, the "UE panel" may have at least one of the following functionalities: independently controlling its TX beam as an element of an antenna group, independently controlling its transmission power as an element of an antenna group, and / or independently controlling its transmission timing as an element of an antenna group. The "UE panel" may be transparent to the gNB. In some cases, the gNB or network may assume that the mapping between the UE's physical antennas and the logical entity "UE panel" is immutable. For example, the condition may include until the next update or report from the UE, or include the gNB assuming that the mapping will not change for a duration. The UE may report its UE capabilities regarding the "UE panel" to the gNB or network. UE capabilities may include at least the number of "UE panels". In one embodiment, the UE may support UL transmission from one beam within the panel. For multiple panels, more than one beam (e.g., one beam per panel) may be available for UL transmission. In another embodiment, more than one beam per panel may be supported and / or used for UL transmission.

[0080] In various embodiments, the Transmission Configuration Indicator (“TCI”) state associated with the target transmission can indicate the quasi-colocation relationship between the target transmission (e.g., the target RS of the demodulation reference signal (“DM-RS”) port of the target transmission during the transmission timing) and the source reference signal (e.g., the synchronization signal block (“SSB”), the channel state information reference signal (“CSI-RS”), and / or the probe reference signal (“SRS”)) with respect to the quasi-colocation type parameter indicated in the corresponding TCI state.

[0081] In some embodiments, spatial relationship information associated with the target transmission may indicate the spatial arrangement between the target transmission and a reference RS (e.g., SSB, CSI-RS, and / or SRS). For example, the UE may use the same spatial filter for receiving the reference RS (e.g., a DL RS, such as an SSB and / or CSI-RS) to transmit the target transmission. In another instance, the UE may use the same spatial transmission filter for transmitting RS (e.g., a UL RS, such as an SRS) to transmit the target transmission.

[0082] Figure 5 This is a flowchart illustrating one embodiment of a method 500 for performing physical uplink shared channel transmission using a stop instruction. In some embodiments, method 500 is performed by a device such as remote unit 102. In some embodiments, method 500 may be performed by a processor executing program code, such as a microcontroller, microprocessor, CPU, GPU, auxiliary processing unit, FPGA, or the like.

[0083] In various embodiments, method 500 includes transmitting a 502 physical uplink shared channel transmission in an autonomous uplink configured authorized resource after performing a listen-before-speak procedure. In various embodiments, method 500 includes receiving a 504 stop indication in response to transmitting the physical uplink shared channel transmission, wherein the stop indication instructs a group of user equipment not to transmit in overlapping configured authorized resources during a time period corresponding to a spatial filter.

[0084] In some embodiments, method 500 further includes receiving information indicating a clear transmission command for user equipment that is not a portion of the group of user equipment. In some embodiments, the clear transmission command instructs the user equipment to transmit within overlapping configured authorized resources during a time period corresponding to a spatial filter.

[0085] In various embodiments, the information indicating a clear transmission command includes a user equipment identifier transmitted along with a stop indication in multicast downlink control information. In one embodiment, the information indicating a clear transmission command includes an indicator transmitted in unicast downlink control information. In some embodiments, a group common physical downlink control channel with a configured radio network temporary identifier is used to transmit the stop indication.

[0086] In some embodiments, method 500 further includes starting a timer in response to transmitting a physical uplink shared channel transmission. In various embodiments, method 500 further includes stopping the timer in response to receiving a stop indication. In one embodiment, method 500 further includes transmitting a new transport block in the autonomous uplink configured authorized resources in response to the timer expiring before receiving the stop indication.

[0087] Figure 6 This is a flowchart illustrating another embodiment of a method 600 for performing physical uplink shared channel transmission using a stop instruction. In some embodiments, method 600 is performed by a device such as network unit 104. In some embodiments, method 600 may be performed by a processor executing program code, such as a microcontroller, microprocessor, CPU, GPU, auxiliary processing unit, FPGA, or the like.

[0088] In various embodiments, method 600 includes receiving 602 physical uplink shared channel transmissions in autonomous uplink configured licensed resources. In various embodiments, method 600 includes transmitting 604 a stop indication in response to receiving physical uplink shared channel transmissions, wherein the stop indication instructs a group of user equipment not to transmit in overlapping configured licensed resources during a time period corresponding to a spatial filter.

[0089] In some embodiments, method 600 further includes information indicating a clear transmission command for user equipment that is not part of the group of user equipment. In some embodiments, the clear transmission command instructs the user equipment to transmit within overlapping configured authorized resources during a time period corresponding to a spatial filter.

[0090] In various embodiments, the information indicating a clear transmission command includes a user equipment identifier transmitted along with a stop indication in multicast downlink control information. In one embodiment, the information indicating a clear transmission command includes an indicator transmitted in unicast downlink control information. In some embodiments, a group common physical downlink control channel with a configured radio network temporary identifier is used to transmit the stop indication.

[0091] In some embodiments, method 600 further includes transmitting information indicating a radio network temporary identifier used to monitor group common downlink control information. In various embodiments, the cyclic redundancy checksum of the group common downlink control information is masked by the radio network temporary identifier. In one embodiment, the group common downlink control information indicates a plurality of cancel indicators, mute indicators, clear transmit indicators, or a combination thereof.

[0092] In one embodiment, a method includes: after performing a listen-before-speak procedure, transmitting a physical uplink shared channel transmission in an autonomous uplink configured authorized resource; and receiving a stop indication in response to transmitting the physical uplink shared channel transmission, wherein the stop indication instructs a group of user equipment not to transmit in overlapping configured authorized resources during a time period corresponding to a spatial filter.

[0093] In some embodiments, the method further includes receiving information indicating a clearing command for user equipment that is not part of the group's user equipment.

[0094] In some embodiments, the clear transmission command instructs the user equipment to transmit within overlapping configured authorized resources during a time period corresponding to the space filter.

[0095] In various embodiments, the information indicating the clearing command includes a user equipment identifier transmitted along with a stop instruction in multicast downlink control information.

[0096] In one embodiment, the information indicating the clearing command includes an indicator transmitted in unicast downlink control information.

[0097] In some embodiments, a group common physical downlink control channel with a configured radio network temporary identifier is used to transmit a stop indication.

[0098] In some embodiments, the method further includes starting a timer in response to transmitting a physical uplink shared channel transmission.

[0099] In various embodiments, the method further includes stopping the timer in response to receiving a stop instruction.

[0100] In one embodiment, the method further includes transmitting a new transport block in the configured authorized resources of the autonomous uplink in response to the timer expiring before receiving a stop indication.

[0101] In one embodiment, an apparatus includes: a transmitter that, after performing a listen-before-speak procedure, transmits a physical uplink shared channel transmission in an autonomous uplink configured authorized resource; and a receiver that, in response to transmitting the physical uplink shared channel transmission, receives a stop indication, wherein the stop indication instructs a group of user equipment not to transmit in overlapping configured authorized resources during a time period corresponding to a spatial filter.

[0102] In some embodiments, the receiver receives information indicating a clearing command for user equipment that is not part of the group's user equipment.

[0103] In some embodiments, the clear transmission command instructs the user equipment to transmit within overlapping configured authorized resources during a time period corresponding to the space filter.

[0104] In various embodiments, the information indicating the clearing command includes a user equipment identifier transmitted along with a stop instruction in multicast downlink control information.

[0105] In one embodiment, the information indicating the clearing command includes an indicator transmitted in unicast downlink control information.

[0106] In some embodiments, a group common physical downlink control channel with a configured radio network temporary identifier is used to transmit a stop indication.

[0107] In some embodiments, the device further includes a processor that starts a timer in response to transmitting a physical uplink shared channel transmission.

[0108] In various embodiments, the processor stops the timer in response to receiving a stop instruction.

[0109] In one embodiment, in response to a timer expiring before a stop indication is received, the transmitter transmits a new transport block in the configured authorized resources of the autonomous uplink.

[0110] In one embodiment, a method includes: receiving a physical uplink shared channel transmission in an autonomous uplink configured licensed resource; and responding to the receipt of the physical uplink shared channel transmission to transmit a stop indication, wherein the stop indication instructs a group of user equipment not to transmit in overlapping configured licensed resources during a time period corresponding to a spatial filter.

[0111] In some embodiments, the method further includes transmitting information indicating a clearing command for user equipment that is not part of the group of user equipment.

[0112] In some embodiments, the clear transmission command instructs the user equipment to transmit within overlapping configured authorized resources during a time period corresponding to the space filter.

[0113] In various embodiments, the information indicating the clearing command includes a user equipment identifier transmitted along with a stop instruction in multicast downlink control information.

[0114] In one embodiment, the information indicating the clearing command includes an indicator transmitted in unicast downlink control information.

[0115] In some embodiments, a group common physical downlink control channel with a configured radio network temporary identifier is used to transmit a stop indication.

[0116] In some embodiments, the method further includes transmitting information indicating a temporary radio network identifier used for monitoring group public downlink control information.

[0117] In various embodiments, the cyclic redundancy checksum of the group common downlink control information is masked by the radio network temporary identifier.

[0118] In one embodiment, the group common downlink control information indicates a plurality of cancellation indicators, mute indicators, clear send indicators, or a combination thereof.

[0119] In one embodiment, an apparatus includes: a receiver that receives physical uplink shared channel transmissions in autonomous uplink configured licensed resources; and a transmitter that, in response to receiving physical uplink shared channel transmissions, issues a transmission stop indication, wherein the stop indication instructs a group of user equipment not to transmit in overlapping configured licensed resources during time periods corresponding to spatial filters.

[0120] In some embodiments, the transmitter transmits information indicating a clearing command sent to user equipment that is not part of the group's user equipment.

[0121] In some embodiments, the clear transmission command instructs the user equipment to transmit within overlapping configured authorized resources during a time period corresponding to the space filter.

[0122] In various embodiments, the information indicating the clearing command includes a user equipment identifier transmitted along with a stop instruction in multicast downlink control information.

[0123] In one embodiment, the information indicating the clearing command includes an indicator transmitted in unicast downlink control information.

[0124] In some embodiments, a group common physical downlink control channel with a configured radio network temporary identifier is used to transmit a stop indication.

[0125] In some embodiments, the transmitter transmits information indicating a temporary radio network identifier used for monitoring group public downlink control information.

[0126] In various embodiments, the cyclic redundancy checksum of the group common downlink control information is masked by the radio network temporary identifier.

[0127] In one embodiment, the group common downlink control information indicates a plurality of cancellation indicators, mute indicators, clear send indicators, or a combination thereof.

[0128] The embodiments may be practiced in other specific forms. The described embodiments are to be regarded in all respects as illustrative rather than restrictive. Therefore, the scope of the invention is indicated by the appended claims rather than by the foregoing description. All modifications within the equivalent meaning and scope of the claims should be covered within its scope.

Claims

1. A method for wireless communication, comprising: After executing the "listen first, speak later" procedure, the physical uplink shared channel transmission is carried out in the configured authorized resources of the autonomous uplink. and A stop indication is received in response to the transmission of the physical uplink shared channel, wherein the stop indication instructs a group of user equipment not to transmit in overlapping configured authorized resources during a time period corresponding to a spatial filter.

2. The method of claim 1, further comprising receiving information indicating a clearing command for user equipment that is not part of the group of user equipment.

3. The method of claim 2, wherein the clear transmission command instructs the user equipment to transmit in the overlapping configured authorized resources within the time period corresponding to the space filter.

4. The method of claim 2, wherein the information indicating the clear transmission command includes a user equipment identifier transmitted together with the stop instruction in multicast downlink control information.

5. The method of claim 2, wherein the information indicating the clearing transmission command includes an indicator transmitted in unicast downlink control information.

6. The method of claim 1, wherein the stop indication is transmitted using a group common physical downlink control channel having a configured radio network temporary identifier.

7. The method of claim 1, further comprising starting a timer in response to transmitting the physical uplink shared channel transmission.

8. The method of claim 7, further comprising stopping the timer in response to receiving the stop instruction.

9. The method of claim 7, further comprising, in response to the timer expiring before receiving the stop instruction, transmitting a new transport block in the configured authorized resources of the autonomous uplink.

10. A user equipment for wireless communication, comprising: The transmitter, after executing the listen-before-speak procedure, transmits physical uplink shared channel transmission in the autonomous uplink with configured authorized resources; and A receiver that receives a stop indication in response to transmitting the physical uplink shared channel transmission, wherein the stop indication instructs a group of user equipment not to transmit in overlapping configured authorized resources during a time period corresponding to a spatial filter.

11. The user equipment of claim 10, wherein the receiver receives information indicating a clearing command for user equipment that is not part of the group of user equipment.

12. A method for wireless communication, comprising: Receive physical uplink shared channel transmission in the configured authorized resources of the autonomous uplink; and A transmit stop indication is issued in response to receiving the physical uplink shared channel transmission, wherein the stop indication instructs a group of user equipment not to transmit in overlapping configured authorized resources during a time period corresponding to a spatial filter.

13. The method of claim 12, further comprising transmitting information indicating a clear transmission command for user equipment that is not part of the group of user equipment.

14. The method of claim 13, wherein the clear transmission command instructs the user equipment to transmit in the overlapping configured authorized resources within the time period corresponding to the space filter.

15. The method of claim 13, wherein the information indicating the clear transmission command includes a user equipment identifier transmitted together with the stop instruction in multicast downlink control information.

16. The method of claim 13, wherein the information indicating the clearing transmission command includes an indicator transmitted in unicast downlink control information.

17. The method of claim 12, wherein the stop indication is transmitted using a group common physical downlink control channel having a configured radio network temporary identifier.

18. The method of claim 12, further comprising transmitting information indicating a temporary radio network identifier used for monitoring group common downlink control information.

19. The method of claim 18, wherein the cyclic redundancy checksum of the group common downlink control information is masked by the radio network temporary identifier.

20. The method of claim 18, wherein the group common downlink control information indicates a plurality of cancellation indicators, a mute indicator, a clear send indicator, or a combination thereof.

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