WO2022213046A1 - Techniques pour répétition de pucch basées sur une répétition de pdcch - Google Patents

Techniques pour répétition de pucch basées sur une répétition de pdcch Download PDF

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Publication number
WO2022213046A1
WO2022213046A1 PCT/US2022/071359 US2022071359W WO2022213046A1 WO 2022213046 A1 WO2022213046 A1 WO 2022213046A1 US 2022071359 W US2022071359 W US 2022071359W WO 2022213046 A1 WO2022213046 A1 WO 2022213046A1
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WO
WIPO (PCT)
Prior art keywords
control channel
uplink control
downlink control
indication
repetition
Prior art date
Application number
PCT/US2022/071359
Other languages
English (en)
Inventor
Mahmoud Taherzadeh Boroujeni
Iyab Issam SAKHNINI
Tao Luo
Original Assignee
Qualcomm Incorporated
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US17/703,410 external-priority patent/US20220322391A1/en
Application filed by Qualcomm Incorporated filed Critical Qualcomm Incorporated
Priority to EP22718030.4A priority Critical patent/EP4315691A1/fr
Priority to CN202280024377.3A priority patent/CN117121410A/zh
Publication of WO2022213046A1 publication Critical patent/WO2022213046A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1829—Arrangements specially adapted for the receiver end
    • H04L1/1864—ARQ related signaling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/08—Arrangements for detecting or preventing errors in the information received by repeating transmission, e.g. Verdan system
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1829—Arrangements specially adapted for the receiver end
    • H04L1/1858—Transmission or retransmission of more than one copy of acknowledgement message

Definitions

  • aspects of the present disclosure relate generally to wireless communication systems, and more particularly, to dynamically indicating one or more repetition factors for a physical uplink control channel (PUCCH) based on a physical downlink control channel (PDCCH).
  • PUCCH physical uplink control channel
  • PDCH physical downlink control channel
  • Wireless communication systems are widely deployed to provide various types of communication content such as voice, video, packet data, messaging, broadcast, and so on.
  • These systems may be multiple-access systems capable of supporting communication with multiple users by sharing the available system resources (e.g., time, frequency, and power).
  • Examples of such multiple-access systems include code-division multiple access (CDMA) systems, time-division multiple access (TDMA) systems, frequency-division multiple access (FDMA) systems, and orthogonal frequency-division multiple access (OFDMA) systems, and single-carrier frequency division multiple access (SC-FDMA) systems.
  • CDMA code-division multiple access
  • TDMA time-division multiple access
  • FDMA frequency-division multiple access
  • OFDMA orthogonal frequency-division multiple access
  • SC-FDMA single-carrier frequency division multiple access
  • 5G communications technology can include: enhanced mobile broadband addressing human centric use cases for access to multimedia content, services and data; ultra-rebable-low latency communications (URLLC) with certain specifications for latency and reliability; and massive machine type communications, which can allow a very large number of connected devices and transmission of a relatively low volume of non-delay-sensitive information.
  • URLLC ultra-rebable-low latency communications
  • full duplex communication with respect to integrated access and backhaul (IAB) implementations may increase transmission speed and flexibility but also transmission complexity.
  • improvements in wireless communication operations may be desired.
  • a method of wireless communication at a network entity may include transmitting, to a user equipment (UE), an indication of repetitive scheduling of a downlink control channel, wherein the indication triggers a correspondence between the repetitive scheduling of the downlink control channel and one or more repetition factors for an uplink control channel, each of the one or more repetition factors corresponding to a repetition count for uplink control messages on the uplink control channel; and receiving, from the UE on the uplink control channel, repetitions of an uplink control message according to a first repetition factor of the one or more repetition factors for the uplink control channel.
  • UE user equipment
  • an apparatus for wireless communication includes a transceiver, a memory configured to store instructions, and one or more processors communicatively coupled with the transceiver and the memory.
  • the one or more processors are configured to execute the instructions to transmit, to a UE, an indication of repetitive scheduling of a downlink control channel, wherein the indication triggers a correspondence between the repetitive scheduling of the downlink control channel and one or more repetition factors for an uplink control channel, each of the one or more repetition factors corresponding to a repetition count for uplink control messages on the uplink control channel; and receive, from the UE on the uplink control channel, repetitions of an uplink control message according to a first repetition factor of the one or more repetition factors for the uplink control channel.
  • an apparatus for wireless communication includes means for transmitting, to a UE, an indication of repetitive scheduling of a downlink control channel, wherein the indication triggers a correspondence between the repetitive scheduling of the downlink control channel and one or more repetition factors for an uplink control channel, each of the one or more repetition factors corresponding to a repetition count for uplink control messages on the uplink control channel; and means for receiving, from the UE on the uplink control channel, repetitions of an uplink control message according to a first repetition factor of the one or more repetition factors for the uplink control channel.
  • a non-transitory computer-readable medium including code executable by one or more processors to transmit, to a UE, an indication of repetitive scheduling of a downlink control channel, wherein the indication triggers a correspondence between the repetitive scheduling of the downlink control channel and one or more repetition factors for an uplink control channel, each of the one or more repetition factors corresponding to a repetition count for uplink control messages on the uplink control channel; and receive, from the UE on the uplink control channel, repetitions of an uplink control message according to a first repetition factor of the one or more repetition factors for the uplink control channel.
  • a method of wireless communication at a network entity may include receiving, from a network entity, an indication of repetitive scheduling of a downlink control channel, wherein the indication triggers a correspondence between the repetitive scheduling of the downlink control channel and one or more repetition factors for an uplink control channel, each of the one or more repetition factors corresponding to a repetition count for uplink control messages on the uplink control channel; and transmitting, to the network entity on the uplink control channel, repetitions of an uplink control message according to a first repetition factor of the one or more repetition factors for the uplink control channel.
  • an apparatus for wireless communication includes a transceiver, a memory configured to store instructions, and one or more processors communicatively coupled with the transceiver and the memory.
  • the one or more processors are configured to execute the instructions to receive, from a network entity, an indication of repetitive scheduling of a downlink control channel, wherein the indication triggers a correspondence between the repetitive scheduling of the downlink control channel and one or more repetition factors for an uplink control channel, each of the one or more repetition factors corresponding to a repetition count for uplink control messages on the uplink control channel; and transmit, to the network entity on the uplink control channel, repetitions of an uplink control message according to a first repetition factor of the one or more repetition factors for the uplink control channel.
  • an apparatus for wireless communication includes means for receiving, from a network entity, an indication of repetitive scheduling of a downlink control channel, wherein the indication triggers a correspondence between the repetitive scheduling of the downlink control channel and one or more repetition factors for an uplink control channel, each of the one or more repetition factors corresponding to a repetition count for uplink control messages on the uplink control channel; and means for transmitting, to the network entity on the uplink control channel, repetitions of an uplink control message according to a first repetition factor of the one or more repetition factors for the uplink control channel.
  • a non-transitory computer-readable medium including code executable by one or more processors to receive, from a network entity, an indication of repetitive scheduling of a downlink control channel, wherein the indication triggers a correspondence between the repetitive scheduling of the downlink control channel and one or more repetition factors for an uplink control channel, each of the one or more repetition factors corresponding to a repetition count for uplink control messages on the uplink control channel; and transmit, to the network entity on the uplink control channel, repetitions of an uplink control message according to a first repetition factor of the one or more repetition factors for the uplink control channel.
  • the one or more aspects comprise the features hereinafter fully described and particularly pointed out in the claims.
  • the following description and the annexed drawings set forth in detail certain illustrative features of the one or more aspects. These features are indicative, however, of but a few of the various ways in which the principles of various aspects may be employed, and this description is intended to include all such aspects and their equivalents.
  • FIG. 1 illustrates an example of a wireless communication system, in accordance with various aspects of the present disclosure
  • FIG. 2 is a block diagram illustrating an example of a network entity (also referred to as a base station), in accordance with various aspects of the present disclosure
  • FIG. 3 is a block diagram illustrating an example of a user equipment (UE), in accordance with various aspects of the present disclosure
  • FIG. 4 is a diagram of an example of a process flow that supports indications of uplink control channel repetition factor, in accordance with various aspects of the present disclosure
  • FIG. 5 is a flow chart illustrating an example of a method for wireless communications at a network entity in accordance with various aspects of the present disclosure
  • FIG. 6 is a flow chart illustrating another example of a method for wireless communications at a UE in accordance with various aspects of the present disclosure
  • FIG. 7 is a block diagram illustrating an example of a MIMO communication system including a base station and a UE, in accordance with various aspects of the present disclosure.
  • a wireless communications system may rely on physical uplink control channel (PUCCH) repetition (e.g., transmitting uplink control messages multiple times) for coverage enhancement.
  • PUCCH physical uplink control channel
  • UE user equipment
  • Some techniques may provide a mechanism for a network entity (e.g., base station) to individually configure a UE to perform PUCCH repetition for each configured uplink control message, which may result in additional signaling for each configured uplink control message.
  • Some techniques may rely on an increased size of existing signaling, or new signaling, which may result in increased latency, increased signaling overhead, or the like.
  • Some techniques may provide a mechanism for the base station to dynamically signal for the UE to use a preconfigured PUCCH coverage enhancement scheme.
  • such techniques do not allow for a dynamic indication of a repetition factor (e.g., such as the PUCCH repetition count) for an individual uplink control message or a subset of uplink control messages, which may result in inefficient use of available resources, increased system latency, increased signaling overhead, or the like.
  • base stations may implicitly indicate a PUCCH repetition factor for a UE to use on a next PUCCH transmission via the selection of an aggregation level for the preceding PDCCH.
  • the base station may configure relationships between PUCCH repetition factors and aggregation levels.
  • the base station may select the corresponding aggregation level, and may transmit a downlink control message (e.g., a downlink control information (DCI) message) on a physical downlink control channel (PDCCH) using the selected aggregation level that corresponds to the desired PUCCH repetition factor.
  • a downlink control message e.g., a downlink control information (DCI) message
  • PDCCH physical downlink control channel
  • applying the indicated correspondence between aggregation levels and PUCCH repetition factors may be based on one or more rules being satisfied (e.g., the relationship between PUCCH repetition factors and aggregation levels is only valid if one or more conditions are satisfied).
  • the UE may use the indicated PUCCH repetition factor for only a next PUCCH transmission (e.g., an ACK/NACK message for a downlink transmission indicated in the received DCI), for all PUCCH transmissions until a next DCI indicates a new PUCCH repetition factor, or for all PUCCH transmissions for the duration of a timer.
  • Some base stations may be configured to implicitly indicate a PUCCH repetition factor based on a PUCCH resource indicator (PRI) bitfield of the DCI that schedules a physical downlink shared channel (PDSCH).
  • PRI PUCCH resource indicator
  • the present disclosure provides for dynamically indicating a repetition factor for PUCCH based on at least one of PDCCH or DCI so that channel conditions for scheduling repeated PDSCH may be correlated with channel conditions that use PUCCH repetition.
  • the present implementations provide repetitions of uplink transmissions techniques
  • a network entity may transmit, to a UE, an indication of repetitive scheduling of a downlink control channel, wherein the indication triggers a correspondence between the repetitive scheduling of the downlink control channel and one or more repetition factors for an uplink control channel, each of the one or more repetition factors corresponding to a repetition count for uplink control messages on the uplink control channel; and receive, from the UE on the uplink control channel, repetitions of an uplink control message according to a first repetition factor of the one or more repetition factors for the uplink control channel.
  • a UE may receive, from a network entity, an indication of repetitive scheduling of a downlink control channel, wherein the indication triggers a correspondence between the repetitive scheduling of the downlink control channel and one or more repetition factors for an uplink control channel, each of the one or more repetition factors corresponding to a repetition count for uplink control messages on the uplink control channel; and transmit, to the network entity on the uplink control channel, repetitions of an uplink control message according to a first repetition factor of the one or more repetition factors for the uplink control channel.
  • a component may be, but is not limited to being, a process running on a processor, a processor, an object, an executable, a thread of execution, a program, and/or a computer.
  • a component may be, but is not limited to being, a process running on a processor, a processor, an object, an executable, a thread of execution, a program, and/or a computer.
  • an application running on a computing device and the computing device can be a component.
  • One or more components can reside within a process and/or thread of execution and a component can be localized on one computer and/or distributed between two or more computers.
  • these components can execute from various computer readable media having various data structures stored thereon.
  • the components can communicate by way of local and/or remote processes such as in accordance with a signal having one or more data packets, such as data from one component interacting with another component in a local system, distributed system, and/or across a network such as the Internet with other systems by way of the signal.
  • Software shall be construed broadly to mean instructions, instruction sets, code, code segments, program code, programs, subprograms, software modules, applications, software applications, software packages, routines, subroutines, objects, executables, threads of execution, procedures, functions, etc., whether referred to as software, firmware, middleware, microcode, hardware description language, or otherwise.
  • a CDMA system may implement a radio technology such as CDMA2000, Universal Terrestrial Radio Access (UTRA), etc.
  • CDMA2000 covers IS-2000, IS-95, and IS-856 standards.
  • IS-2000 Releases 0 and A are commonly referred to as CDMA2000 IX, IX, etc.
  • IS-856 (TIA- 856) is commonly referred to as CDMA2000 lxEV-DO, High Rate Packet Data (HRPD), etc.
  • UTRA includes Wideband CDMA (WCDMA) and other variants of CDMA.
  • a TDMA system may implement a radio technology such as Global System for Mobile Communications (GSM).
  • GSM Global System for Mobile Communications
  • An OFDMA system may implement a radio technology such as Ultra Mobile Broadband (UMB), Evolved UTRA (E-UTRA), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash-OFDMTM, etc.
  • UMB Ultra Mobile Broadband
  • E-UTRA Evolved UTRA
  • Wi-Fi Wi-Fi
  • WiMAX IEEE 802.16
  • IEEE 802.20 Flash-OFDMTM
  • UTRA and E-UTRA are part of Universal Mobile Telecommunication System (UMTS).
  • 3GPP Long Term Evolution (LTE) and LTE-Advanced (LTE-A) are new releases of UMTS that use E- UTRA.
  • UTRA, E-UTRA, UMTS, LTE, LTE-A, and GSM are described in documents from an organization named “3rd Generation Partnership Project” (3GPP
  • CDMA2000 and UMB are described in documents from an organization named “3rd Generation Partnership Project 2” (3GPP2).
  • 3GPP2 3rd Generation Partnership Project 2
  • the techniques described herein may be used for the systems and radio technologies mentioned above as well as other systems and radio technologies, including cellular (e.g., LTE) communications over a shared radio frequency spectrum band.
  • LTE Long Term Evolution
  • LTE terminology is used in much of the description below, although the techniques are applicable beyond LTE/LTE-A applications (e.g., to fifth generation (5G) NR networks or other next generation communication systems).
  • 5G fifth generation
  • the following description provides examples, and is not limiting of the scope, applicability, or examples set forth in the claims.
  • FIG. 1 is a diagram illustrating an example of a wireless communications system and an access network 100.
  • the wireless communications system (also referred to as a wireless wide area network (WWAN)) can include base stations 102, UEs 104, an Evolved Packet Core (EPC) 160, and/or a 5G Core (5GC) 190.
  • the base stations 102 which may also be referred to as a network entity, may include macro cells (high power cellular base station) and/or small cells (low power cellular base station).
  • the macro cells can include base stations.
  • the small cells can include femtocells, picocells, and microcells.
  • the base stations 102 may also include gNBs 180, as described further herein.
  • some nodes such as base station 102/gNB 180, may have a modem 240 and BS communicating component 242 for dynamically indicating one or more repetition factors for a PUCCH based on a PDCCH, as described herein.
  • a base station 102/gNB 180 is shown as having the modem 240 and BS communicating component 242, this is one illustrative example, and substantially any node or type of node may include a modem 240 and BS communicating component 242 for providing corresponding functionalities described herein.
  • the UE 104 may have a modem 340 and UE communicating component 252 for receiving an indication one or more repetition factors for a PUCCH and configuring repetitions of uplink transmissions.
  • the base stations 102 configured for 4G LTE (which can collectively be referred to as Evolved Universal Mobile Telecommunications System (UMTS) Terrestrial Radio Access Network (E-UTRAN)) may interface with the EPC 160 through backhaul links 132 (e.g., using an SI interface).
  • the base stations 102 configured for 5GNR (which can collectively be referred to as Next Generation RAN (NG-RAN)) may interface with 5GC 190 through backhaul links 184.
  • NG-RAN Next Generation RAN
  • the base stations 102 may perform one or more of the following functions: transfer of user data, radio channel ciphering and deciphering, integrity protection, header compression, mobility control functions (e.g., handover, dual connectivity), inter-cell interference coordination, connection setup and release, load balancing, distribution for non-access stratum (NAS) messages, NAS node selection, synchronization, radio access network (RAN) sharing, multimedia broadcast multicast service (MBMS), subscriber and equipment trace, RAN information management (RIM), paging, positioning, and delivery of warning messages.
  • the base stations 102 may communicate directly or indirectly (e.g., through the EPC 160 or 5GC 190) with each other over backhaul links 134 (e.g., using an X2 interface).
  • the backhaul links 132, 134 and/or 184 may be wired or wireless.
  • the base stations 102 may wirelessly communicate with one or more UEs 104. Each of the base stations 102 may provide communication coverage for a respective geographic coverage area 110. There may be overlapping geographic coverage areas 110. For example, the small cell 102' may have a coverage area 110' that overlaps the coverage area 110 of one or more macro base stations 102.
  • a network that includes both small cell and macro cells may be referred to as a heterogeneous network.
  • a heterogeneous network may also include Home Evolved Node Bs (eNBs) (HeNBs), which may provide service to a restricted group, which can be referred to as a closed subscriber group (CSG).
  • eNBs Home Evolved Node Bs
  • CSG closed subscriber group
  • the communication links 120 between the base stations 102 and the UEs 104 may include uplink (UL) (also referred to as reverse link) transmissions from aUE 104 to abase station 102 and/or downlink (DL) (also referred to as forward link) transmissions from a base station 102 to a UE 104.
  • the communication links 120 may use multiple-input and multiple-output (MIMO) antenna technology, including spatial multiplexing, beamforming, and/or transmit diversity.
  • the communication links may be through one or more carriers.
  • the base stations 102 / UEs 104 may use spectrum up to Y MHz (e.g., 5, 10, 15, 20, 100, 400, etc.
  • the component carriers may include a primary component carrier and one or more secondary component carriers.
  • a primary component carrier may be referred to as a primary cell (PCell) and a secondary component carrier may be referred to as a secondary cell (SCell).
  • D2D communication link 158 may use the DL/UL WWAN spectrum.
  • the D2D communication link 158 may use one or more sidelink channels, such as a physical sidelink broadcast channel (PSBCH), a physical sidelink discovery channel (PSDCH), a physical sidelink shared channel (PSSCH), and a physical sidelink control channel (PSCCH).
  • sidelink channels such as a physical sidelink broadcast channel (PSBCH), a physical sidelink discovery channel (PSDCH), a physical sidelink shared channel (PSSCH), and a physical sidelink control channel (PSCCH).
  • sidelink channels such as a physical sidelink broadcast channel (PSBCH), a physical sidelink discovery channel (PSDCH), a physical sidelink shared channel (PSSCH), and a physical sidelink control channel (PSCCH).
  • sidelink channels such as a physical sidelink broadcast channel (PSBCH), a physical sidelink discovery channel (PSDCH), a physical sidelink shared channel (PSSCH), and a physical sidelink control channel (PSCCH).
  • the wireless communications system may further include a Wi-Fi access point (AP) 150 in communication with Wi-Fi stations (STAs) 152 via communication links 154 in a 5 GHz unlicensed frequency spectrum.
  • AP Wi-Fi access point
  • STAs Wi-Fi stations
  • the STAs 152 / AP 150 may perform a clear channel assessment (CCA) prior to communicating in order to determine whether the channel is available.
  • CCA clear channel assessment
  • the small cell 102' may operate in a licensed and/or an unlicensed frequency spectrum. When operating in an unlicensed frequency spectrum, the small cell 102' may employ NR and use the same 5 GHz unlicensed frequency spectrum as used by the Wi Fi AP 150.
  • the small cell 102', employing NR in an unlicensed frequency spectrum may boost coverage to and/or increase capacity of the access network.
  • a base station 102 may include an eNB, gNodeB (gNB), or other type of base station.
  • Some base stations, such as gNB 180 may operate in a traditional sub 6 GHz spectrum, in millimeter wave (mmW) frequencies, and/or near mmW frequencies in communication with the UE 104.
  • mmW millimeter wave
  • mmW millimeter wave
  • near mmW frequencies in communication with the UE 104.
  • the gNB 180 When the gNB 180 operates in mmW or near mmW frequencies, the gNB 180 may be referred to as an mmW base station.
  • Extremely high frequency (EHF) is part of the RF in the electromagnetic spectrum. EHF has a range of 30 GHz to 300 GHz and a wavelength between 1 millimeter and 10 millimeters.
  • Radio waves in the band may be referred to as a millimeter wave.
  • Near mmW may extend down to a frequency of 3 GHz with a wavelength of 100 millimeters.
  • the super high frequency (SHF) band extends between 3 GHz and 30 GHz, also referred to as centimeter wave. Communications using the mmW / near mmW radio frequency band has extremely high path loss and a short range.
  • the mmW base station 180 may utilize beamforming 182 with the UE 104 to compensate for the extremely high path loss and short range.
  • a base station 102 referred to herein can include a gNB 180.
  • the EPC 160 may include a Mobility Management Entity (MME) 162, other MMEs 164, a Serving Gateway 166, a Multimedia Broadcast Multicast Service (MBMS) Gateway 168, a Broadcast Multicast Service Center (BM-SC) 170, and a Packet Data Network (PDN) Gateway 172.
  • MME Mobility Management Entity
  • MBMS Multimedia Broadcast Multicast Service
  • BM-SC Broadcast Multicast Service Center
  • PDN Packet Data Network
  • the MME 162 may be in communication with a Home Subscriber Server (HSS) 174.
  • HSS Home Subscriber Server
  • the MME 162 is the control node that processes the signaling between the UEs 104 and the EPC 160.
  • the MME 162 provides bearer and connection management. All user Internet protocol (IP) packets are transferred through the Serving Gateway 166, which itself is connected to the PDN Gateway 172.
  • IP Internet protocol
  • the PDN Gateway 172 provides UE IP address allocation as well as other functions.
  • the PDN Gateway 172 and the BM-SC 170 are connected to the IP Services 176.
  • the IP Services 176 may include the Internet, an intranet, an IP Multimedia Subsystem (IMS), a PS Streaming Service, and/or other IP services.
  • the BM-SC 170 may provide functions for MBMS user service provisioning and delivery.
  • the BM-SC 170 may serve as an entry point for content provider MBMS transmission, may be used to authorize and initiate MBMS Bearer Services within a public land mobile network (PLMN), and may be used to schedule MBMS transmissions.
  • PLMN public land mobile network
  • the MBMS Gateway 168 may be used to distribute MBMS traffic to the base stations 102 belonging to a Multicast Broadcast Single Frequency Network (MBSFN) area broadcasting a particular service, and may be responsible for session management (start/stop) and for collecting eMBMS related charging information.
  • MMSFN Multicast Broadcast Single Frequency Network
  • the 5GC 190 may include a AMF 192, other AMFs 193, a Session Management Function (SMF) 194, and a User Plane Function (UPF) 195.
  • the AMF 192 may be in communication with a Unified Data Management (UDM) 196.
  • the AMF 192 can be a control node that processes the signaling between the UEs 104 and the 5GC 190.
  • the AMF 192 can provide QoS flow and session management.
  • User Internet protocol (IP) packets (e.g., from one or more UEs 104) can be transferred through the UPF 195.
  • the UPF 195 can provide UE IP address allocation for one or more UEs, as well as other functions.
  • the UPF 195 is connected to the IP Services 197.
  • the IP Services 197 may include the Internet, an intranet, an IP Multimedia Subsystem (IMS), a PS Streaming Service, and/or other IP services.
  • IMS IP Multimedia Subsystem
  • the base station may also be referred to as a gNB, Node B, evolved Node B (eNB), an access point, a base transceiver station, a radio base station, a radio transceiver, a transceiver function, a basic service set (BSS), an extended service set (ESS), a transmit reception point (TRP), or some other suitable terminology.
  • the base station 102 provides an access point to the EPC 160 or 5GC 190 for a UE 104.
  • Examples of UEs 104 include a cellular phone, a smart phone, a session initiation protocol (SIP) phone, a laptop, a personal digital assistant (PDA), a satellite radio, a positioning system (e.g., satellite, terrestrial), a multimedia device, a video device, a digital audio player (e.g., MP3 player), a camera, a game console, a tablet, a smart device, robots, drones, an industrial/manufacturing device, a wearable device (e.g., a smart watch, smart clothing, smart glasses, virtual reality goggles, a smart wristband, smart jewelry (e.g., a smart ring, a smart bracelet)), a vehicle/a vehicular device, a meter (e.g., parking meter, electric meter, gas meter, water meter, flow meter), a gas pump, a large or small kitchen appliance, a medical/healthcare device, an implant, a sensor/actuator, a display, or any other similar functioning
  • IoT devices e.g., meters, pumps, monitors, cameras, industrial/manufacturing devices, appliances, vehicles, robots, drones, etc.
  • IoT UEs may include MTC/enhanced MTC (eMTC, also referred to as CAT-M, Cat Ml) UEs, NB-IoT (also referred to as CATNB1) UEs, as well as other types of UEs.
  • eMTC and NB-IoT may refer to future technologies that may evolve from or may be based on these technologies.
  • eMTC may include FeMTC (further eMTC), eFeMTC (enhanced further eMTC), mMTC (massive MTC), etc.
  • NB-IoT may include eNB-IoT (enhanced NB-IoT), FeNB-IoT (further enhanced NB-IoT), etc.
  • the UE 104 may also be referred to as a station, a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless device, a wireless communications device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, a user agent, a mobile client, a client, or some other suitable terminology.
  • FIGS. 2-5 aspects are depicted with reference to one or more components and one or more methods that may perform the actions or operations described herein, where aspects in dashed line may be optional. Although the operations described below in FIGS.
  • 5 and 6 are presented in a particular order and/or as being performed by an example component, it should be understood that the ordering of the actions and the components performing the actions may be varied, depending on the implementation. Moreover, it should be understood that the following actions, functions, and/or described components may be performed by a specially-programmed processor, a processor executing specially-programmed software or computer-readable media, or by any other combination of a hardware component and/or a software component capable of performing the described actions or functions.
  • one example of an implementation of a node acting as an IAB node such as base station 102 (e.g., a base station 102 and/or gNB 180, as described above) may include a variety of components, some of which have already been described above and are described further herein, including components such as one or more processors 212 and memory 216 and transceiver 202 in communication via one or more buses 243, which may operate in conjunction with modem 240 and/or BS communicating component 242 for configuring repetitions of uplink transmissions (e.g., uplink control messages 246).
  • base station 102 e.g., a base station 102 and/or gNB 180, as described above
  • components such as one or more processors 212 and memory 216 and transceiver 202 in communication via one or more buses 243, which may operate in conjunction with modem 240 and/or BS communicating component 242 for configuring repetitions of uplink transmissions (e.g., uplink control messages 246).
  • the one or more processors 212 can include a modem 240 and/or can be part of the modem 240 that uses one or more modem processors.
  • the various functions related to BS communicating component 242 may be included in modem 240 and/or processors 212 and, in an aspect, can be executed by a single processor, while in other aspects, different ones of the functions may be executed by a combination of two or more different processors.
  • the one or more processors 212 may include any one or any combination of a modem processor, or a baseband processor, or a digital signal processor, or a transmit processor, or a receiver processor, or a transceiver processor associated with transceiver 202. In other aspects, some of the features of the one or more processors 212 and/or modem 240 associated with BS communicating component 242 may be performed by transceiver 202.
  • memory 216 may be configured to store data used herein and/or local versions of applications 275 or BS communicating component 242 and/or one or more of its subcomponents being executed by at least one processor 212.
  • Memory 216 can include any type of computer-readable medium usable by a computer or at least one processor 212, such as random access memory (RAM), read only memory (ROM), tapes, magnetic discs, optical discs, volatile memory, non-volatile memory, and any combination thereof.
  • RAM random access memory
  • ROM read only memory
  • tapes such as magnetic discs, optical discs, volatile memory, non-volatile memory, and any combination thereof.
  • memory 216 may be a non-transitory computer-readable storage medium that stores one or more computer-executable codes defining BS communicating component 242 and/or one or more of its subcomponents, and/or data associated therewith, when base station 102 is operating at least one processor 212 to execute BS communicating component 242 and/or one or more of its subcomponents.
  • Transceiver 202 may include at least one receiver 206 and at least one transmitter 208.
  • Receiver 206 may include hardware and/or software executable by a processor for receiving data, the code comprising instructions and being stored in a memory (e.g., computer-readable medium).
  • Receiver 206 may be, for example, a radio frequency (RF) receiver.
  • RF radio frequency
  • receiver 206 may receive signals transmitted by at least one base station 102. Additionally, receiver 206 may process such received signals, and also may obtain measurements of the signals, such as, but not limited to, Ec/Io, signal-to-noise ratio (SNR), reference signal received power (RSRP), received signal strength indicator (RSSI), etc.
  • Transmitter 208 may include hardware and/or software executable by a processor for transmitting data, the code comprising instructions and being stored in a memory (e.g., computer-readable medium).
  • a suitable example of transmitter 208 may including, but is not limited to, an RF transmitter.
  • base station 102 may include RF front end 288, which may operate in communication with one or more antennas 265 and transceiver 202 for receiving and transmitting radio transmissions, for example, wireless communications transmitted by at least one base station 102 or wireless transmissions transmitted by UE 104.
  • RF front end 288 may be connected to one or more antennas 265 and can include one or more low-noise amplifiers (LNAs) 290, one or more switches 292, one or more power amplifiers (PAs) 298, and one or more filters 296 for transmitting and receiving RF signals.
  • the antennas 265 may include one or more antennas, antenna elements, and/or antenna arrays.
  • LNA 290 can amplify a received signal at a desired output level.
  • each LNA 290 may have a specified minimum and maximum gain values.
  • RF front end 288 may use one or more switches 292 to select a particular LNA 290 and its specified gain value based on a desired gain value for a particular application.
  • one or more PA(s) 298 may be used by RF front end 288 to amplify a signal for an RF output at a desired output power level.
  • each PA 298 may have specified minimum and maximum gain values.
  • RF front end 288 may use one or more switches 292 to select a particular PA 298 and its specified gain value based on a desired gain value for a particular application.
  • one or more filters 296 can be used by RF front end 288 to filter a received signal to obtain an input RF signal.
  • a respective filter 296 can be used to filter an output from a respective PA 298 to produce an output signal for transmission.
  • each filter 296 can be connected to a specific LNA 290 and/or PA 298.
  • RF front end 288 can use one or more switches 292 to select a transmit or receive path using a specified filter 296, LNA 290, and/or PA 298, based on a configuration as specified by transceiver 202 and/or processor 212
  • transceiver 202 may be configured to transmit and receive wireless signals through one or more antennas 265 via RF front end 288.
  • transceiver may be tuned to operate at specified frequencies such that UE 104 can communicate with, for example, one or more base stations 102 or one or more cells associated with one or more base stations 102.
  • modem 240 can configure transceiver 202 to operate at a specified frequency and power level based on the UE configuration of the UE 104 and the communication protocol used by modem 240.
  • modem 240 can be a multiband-multimode modem, which can process digital data and communicate with transceiver 202 such that the digital data is sent and received using transceiver 202.
  • modem 240 can be multiband and be configured to support multiple frequency bands for a specific communications protocol.
  • modem 240 can be multimode and be configured to support multiple operating networks and communications protocols.
  • modem 240 can control one or more components of UE 104 (e.g., RF front end 288, transceiver 202) to enable transmission and/or reception of signals from the network based on a specified modem configuration.
  • the modem configuration can be based on the mode of the modem and the frequency band in use.
  • the modem configuration can be based on UE configuration information associated with UE 104 as provided by the network during cell selection and/or cell reselection.
  • the processor(s) 212 may correspond to one or more of the processors described in connection with the UE in FIG. 7.
  • the memory 216 may correspond to the memory described in connection with the UE in FIG. 7.
  • one example of an implementation of UE 104 may include a variety of components, some of which have already been described above and are described further herein, including components such as one or more processors 312 and memory 316 and transceiver 302 in communication via one or more buses 344, which may operate in conjunction with modem 340 and/or UE communicating component 252 for configuring repetitions of uplink transmissions (e.g., uplink control message 256) based on an indication of repetitive scheduling 254.
  • components such as one or more processors 312 and memory 316 and transceiver 302 in communication via one or more buses 344, which may operate in conjunction with modem 340 and/or UE communicating component 252 for configuring repetitions of uplink transmissions (e.g., uplink control message 256) based on an indication of repetitive scheduling 254.
  • the transceiver 302, receiver 306, transmitter 308, one or more processors 312, memory 316, applications 375, buses 344, RF front end 388, LNAs 390, switches 392, filters 396, PAs 398, and one or more antennas 365 may be the same as or similar to the corresponding components of base station 102, as described above, but configured or otherwise programmed for base station operations as opposed to base station operations.
  • the processor(s) 312 may correspond to one or more of the processors described in connection with the base station in FIG. 7.
  • the memory 316 may correspond to the memory described in connection with the base station in FIG. 7.
  • FIG. 4 illustrates an example of a process flow 400 that supports indications of uplink control channel repetition factor in accordance with aspects of the present disclosure.
  • process flow 400 may include, or may be implemented by, base station 102 and UE 104, which may be examples of corresponding devices described with reference to FIGs. 1-3.
  • base station may optionally determine a configuration between the one or more repetition factors for the uplink control channel, e.g., PUCCH, and the repetitive scheduling of the downlink control channel, e.g., PDCCH.
  • PUCCH uplink control channel
  • PDCCH repetitive scheduling of the downlink control channel
  • base station 102 may transmit, and UE 104 may receive, an indication of a repetitive scheduling of a downlink control channel that triggers a correspondence between the repetitive scheduling of the downlink control channel and one or more repetition factors for an uplink control channel.
  • the indication may trigger UE 104 with a correspondence between the repetitive scheduling of the downlink control channel and one or more repetition factors for an uplink control channel.
  • Each one of the one or more repetition factors may correspond to a repetition factor (e.g., a repetition count) for uplink control messages on the PUCCH.
  • base station 102 may include the indication of the correspondence in a PUCCH resource configuration message.
  • base station 102 may include the indication of the correspondence in a CORESET configuration message.
  • base station 102 may include the indication of the correspondence in a search space configuration message.
  • UE 104 may determine a correlation, i.e., relationship, between the one or more repetition factors and the repetitive scheduling of the downlink control channel. [0064] At 440, UE 104 may select a first repetition factor for use in PUCCH repetition. UE 104 may select the first repetition factor of the one or more repetition factors for the uplink control channel.
  • UE 104 may apply the indicated repetition factor to a PUCCH transmission associated with a physical downlink shared channel (PDSCH) triggered by the DCI message.
  • the DCI message which included the indication received at 420, may schedule a downlink message on a PDSCH, and PUCCH resources for transmitting feedback information associated with or responsive to the downlink message on the PDSCH (e.g., an acknowledgement (ACK) message or a negative acknowledgement (NACK) message).
  • ACK acknowledgement
  • NACK negative acknowledgement
  • base station 102 may transmit, and UE 104 may receive, the downlink message scheduled by the DCI message at 420.
  • UE 104 may then transmit the feedback message (e.g., an ACK or NACK message) to base station 102 at 450 using the repetition factor.
  • UE 104 may only use the indicated repetition factor for the feedback message.
  • UE 104 may transmit one or more repetitions of the uplink control message using the repetition factor (e.g., the repetition count). For example, at 460, UE 104 may transmit repetitions or additional control messages using another repetition factor (e.g., a previously indicated repetition factor, a default repetition factor, or no repetition factor). In some examples, UE 104 may apply the indicated repetition factor to all PUCCH transmissions subsequent to receiving the DCI message at 420 (e.g., until receiving a subsequent DCI message). For example, at 460, UE 104 may transmit repetitions of an uplink control message (e.g., a feedback message associated with a data message received at 450) using the repetition factor.
  • the repetition factor e.g., the repetition count
  • UE 104 may transmit repetitions or additional control messages using another repetition factor (e.g., a previously indicated repetition factor, a default repetition factor, or no repetition factor).
  • UE 104 may apply the indicated repetition factor to all PUCCH transmissions subsequent to receiving the DCI message at
  • UE 104 may transmit repetitions of additional uplink control messages (e.g., control messages associated with other downlink transmissions, periodic or semi-persistent uplink control messages not associated with the DCI message, etc.) ⁇ UE 104 may continue to apply the repetition factor selected at 440 for a subset or all PUCCH transmissions until a subsequent repetition factor is indicated by base station 102.
  • additional uplink control messages e.g., control messages associated with other downlink transmissions, periodic or semi-persistent uplink control messages not associated with the DCI message, etc.
  • FIGS.5 and 6 aspects are depicted with reference to one or more components and one or more methods that may perform the actions or operations described herein, where aspects in dashed line may be optional.
  • FIGS. 5 and 6 are presented in a particular order and/or as being performed by an example component, it should be understood that the ordering of the actions and the components performing the actions may be varied, depending on the implementation.
  • the following actions, functions, and/or described components may be performed by reference to one or more components of FIGS.
  • a specially-programmed processor a processor executing specially-programmed software or computer-readable media, or by any other combination of a hardware component and/or a software component capable of performing the described actions or functions.
  • FIG. 5 illustrates a flow chart of an example of a method 500 for wireless communication at a network entity, such as the network entity 102.
  • a base station 102 can perform the functions described in method 500 using one or more of the components described in FIGS. 1, 2, 4, and 7.
  • the method 500 may determine a configuration between the one or more repetition factors for the uplink control channel and the repetitive scheduling of the downlink control channel.
  • the BS communicating component 242 e.g., in conjunction with processor(s) 212, memory 216, and/or transceiver 202, may be configured to determine a configuration between the one or more repetition factors for the uplink control channel and the repetitive scheduling of the downlink control channel.
  • the base station 102, the processor(s) 212, the BS communicating component 242 or one of its subcomponents may define the means for determining a configuration between the one or more repetition factors for the uplink control channel and the repetitive scheduling of the downlink control channel.
  • the base station 102 and/or the BS communication component 242 may determine a configuration for repetitive uplink communications, and/or performs other signal processes such as described above with respect to Fig. 2.
  • the method 500 may transmit, to a UE, an indication of repetitive scheduling of a downlink control channel, wherein the indication triggers a correspondence between the repetitive scheduling of the downlink control channel and one or more repetition factors for an uplink control channel, each of the one or more repetition factors corresponding to a repetition count for uplink control messages on the uplink control channel.
  • the BS communicating component 242 e.g., in conjunction with processor(s) 212, memory 216, and/or transceiver 202, may be configured to transmit, to a UE 104, an indication of repetitive scheduling 244 of a downlink control channel, wherein the indication triggers a correspondence between the repetitive scheduling of the downlink control channel and one or more repetition factors for an uplink control channel, each of the one or more repetition factors corresponding to a repetition count for uplink control messages on the uplink control channel.
  • the base station 102, the processor(s) 212, the BS communicating component 242 or one of its subcomponents may define the means for transmitting, to a UE 104, an indication of repetitive scheduling 244 of a downlink control channel, wherein the indication triggers a correspondence between the repetitive scheduling of the downlink control channel and one or more repetition factors for an uplink control channel, each of the one or more repetition factors corresponding to a repetition count for uplink control messages on the uplink control channel.
  • the base station 102 and/or the BS communication component 242 may process a signal into an indication, transmits the indication, and/or performs other signal processes such as described above with respect to Fig. 2.
  • the method 500 may receive, from the UE on the uplink control channel, repetitions of an uplink control message according to a first repetition factor of the one or more repetition factors for the uplink control channel.
  • the BS communicating component 242 e.g., in conjunction with processor(s) 212, memory 216, and/or transceiver 202, may be configured to receive, from the UE 104 on the uplink control channel, repetitions of an uplink control message 246 according to a first repetition factor of the one or more repetition factors for the uplink control channel.
  • the base station 102, the processor(s) 212, the BS communicating component 242 or one of its subcomponents may define the means for receiving, from the UE on the uplink control channel, repetitions of an uplink control message according to a first repetition factor of the one or more repetition factors for the uplink control channel.
  • transmitting the indication of repetitive scheduling of the downlink control channel further comprises transmitting the indication of repetitive scheduling of the downlink control channel based on the configuration between the one or more repetition factors for the uplink control channel and the repetitive scheduling of the downlink control channel.
  • the base station 102 and/or the BS communication component 242 may receive a signal, process the signal into an uplink control message, and/or performs other signal processes such as described above with respect to Fig. 2.
  • the indication triggers the correspondence between the repetitive scheduling of the downlink control channel and the one or more repetition factors for the uplink control channel that carries one or more acknowledgement (ACK) or negative ACK (NACK) messages for the downlink control channel.
  • ACK acknowledgement
  • NACK negative ACK
  • the indication triggers the correspondence between the repetitive scheduling of the downlink control channel and the one or more repetition factors for one or more uplink control channels other than the uplink control channel that carries one or more ACK or NACK messages for the downlink control channel.
  • the indication of repetitive scheduling of the downlink control channel corresponds to a RRC message.
  • the indication may be transmitted in an RRC message to UE 104.
  • transmitting the indication of repetitive scheduling of the downlink control channel further comprises transmitting the RRC message based on a resource set of the uplink control channel.
  • transmitting the indication of repetitive scheduling of the downlink control channel further comprises transmitting the indication of repetitive scheduling of the downlink control channel based on at least one of an uplink control channel format, an uplink control information (UCI) size and an UCI content.
  • the indication of repetitive scheduling of the downlink control channel corresponds to a DCI.
  • the indication may be transmitted in a DCI to UE 104.
  • FIG. 6 illustrates a flow chart of an example of a method 600 for wireless communication at a UE, such as the UE 104.
  • a UE 104 can perform the functions described in method 600 using one or more of the components described in FIGS. 1, 3, 4, and 7.
  • the method 600 may receive, from a network entity, an indication of repetitive scheduling of a downlink control channel, wherein the indication triggers a correspondence between the repetitive scheduling of the downlink control channel and one or more repetition factors for an uplink control channel, each of the one or more repetition factors corresponding to a repetition count for uplink control messages on the uplink control channel.
  • the UE communicating component 252 e.g., in conjunction with processor(s) 312, memory 316, and/or transceiver 302, may be configured to receive, from a network entity 102, an indication of repetitive scheduling 254 of a downlink control channel, wherein the indication triggers a correspondence between the repetitive scheduling of the downlink control channel and one or more repetition factors for an uplink control channel, each of the one or more repetition factors corresponding to a repetition count for uplink control messages on the uplink control channel.
  • the base station 102, the processor(s) 312, the UE communicating component 252 or one of its subcomponents may define the means for receiving, from a network entity 102, an indication of repetitive scheduling 254 of a downlink control channel, wherein the indication triggers a correspondence between the repetitive scheduling of the downlink control channel and one or more repetition factors for an uplink control channel, each of the one or more repetition factors corresponding to a repetition count for uplink control messages on the uplink control channel.
  • the UE 104 and/or the UE communication component 252 may receive a signal, process the signal into an indication, and/or performs other signal processes such as described above with respect to Fig. 3.
  • the method 600 may transmit, to the network entity on the uplink control channel, repetitions of an uplink control message according to a first repetition factor of the one or more repetition factors for the uplink control channel.
  • the UE communicating component 252 e.g., in conjunction with processor(s) 312, memory 316, and/or transceiver 302
  • the base station 102, the processor(s) 312, the UE communicating component 252 or one of its subcomponents may define the means for transmitting, to the network entity 102 on the uplink control channel, repetitions of an uplink control message 256 according to a first repetition factor of the one or more repetition factors for the uplink control channel.
  • the UE 104 and/or the UE communication component 252 may process an uplink control message into a signal, transmit the signal, and/or performs other signal processes such as described above with respect to Fig. 3.
  • the indication triggers the correspondence between the repetitive scheduling of the downlink control channel and the one or more repetition factors for the uplink control channel that carries one or more ACK or NACK messages for the downlink control channel.
  • the indication triggers the correspondence between the repetitive scheduling of the downlink control channel and the one or more repetition factors for one or more uplink control channels other than the uplink control channel that carries one or more ACK or NACK messages for the downlink control channel.
  • the indication of repetitive scheduling of the downlink control channel corresponds to a RRC message.
  • the indication may be transmitted in an RRC message to UE 104.
  • receiving the indication of repetitive scheduling of the downlink control channel further comprises receiving the RRC message based on a resource set of the uplink control channel.
  • receiving the indication of repetitive scheduling of the downlink control channel further comprises receiving the indication of repetitive scheduling of the downlink control channel based on at least one of an uplink control channel format, an UCI size and an UCI content.
  • the indication of repetitive scheduling of the downlink control channel corresponds to a DCI.
  • the indication may be transmitted in a DCI to UE 104.
  • FIG. 7 is a block diagram of a MIMO communication system 700 including a base station 102, which may be acting as an IAB node or a parent node, and a UE 104.
  • the MIMO communication system 900 may illustrate aspects of the wireless communication access network 100 described with reference to FIG. 1.
  • the base station 102 may be an example of aspects of the base station 102 described with reference to FIG. 1.
  • the base station 102 may be equipped with antennas 734 and 735, and the UE 104 may be equipped with antennas 752 and 753.
  • the base station 102 may be able to send data over multiple communication links at the same time.
  • Each communication link may be called a “layer” and the “rank” of the communication link may indicate the number of layers used for communication. For example, in a 2x2 MIMO communication system where base station 102 transmits two “layers,” the rank of the communication link between the base station 102 and the UE 104 is two.
  • a transmit (Tx) processor 720 may receive data from a data source. The transmit processor 720 may process the data. The transmit processor 720 may also generate control symbols or reference symbols. A transmit MIMO processor 730 may perform spatial processing (e.g., precoding) on data symbols, control symbols, or reference symbols, if applicable, and may provide output symbol streams to the transmit modulator/demodulators 732 and 733. Each modulator/demodulator 732 through 733 may process a respective output symbol stream (e.g., for OFDM, etc.) to obtain an output sample stream.
  • a respective output symbol stream e.g., for OFDM, etc.
  • Each modulator/demodulator 732 through 733 may further process (e.g., convert to analog, amplify, filter, and upconvert) the output sample stream to obtain a DL signal.
  • DL signals from modulator/demodulators 732 and 733 may be transmitted via the antennas 734 and 735, respectively.
  • the UE 104 may be an example of aspects of the UEs 104 described with reference to FIGS. 1 and 2.
  • the UE antennas 752 and 753 may receive the DL signals from the base station 102 and may provide the received signals to the modulator/demodulators 754 and 755, respectively.
  • Each modulator/demodulator 754 through 755 may condition (e.g., filter, amplify, downconvert, and digitize) a respective received signal to obtain input samples.
  • Each modulator/demodulator 754 through 755 may further process the input samples (e.g., for OFDM, etc.) to obtain received symbols.
  • a MIMO detector 756 may obtain received symbols from the modulator/demodulators 754 and 755, perform MIMO detection on the received symbols, if applicable, and provide detected symbols.
  • a receive (Rx) processor 758 may process (e.g., demodulate, deinterleave, and decode) the detected symbols, providing decoded data for the UE 104 to a data output, and provide decoded control information to a processor 980, or memory 982.
  • the processor 780 may in some cases execute stored instructions to instantiate a BS communicating component 242 (see e.g., FIGS. 1 and 2).
  • a transmit processor 764 may receive and process data from a data source.
  • the transmit processor 764 may also generate reference symbols for a reference signal.
  • the symbols from the transmit processor 764 may be precoded by a transmit MIMO processor 766 if applicable, further processed by the modulator/demodulators 754 and 755 (e.g., for SC-FDMA, etc.), and be transmitted to the base station 102 in accordance with the communication parameters received from the base station 102.
  • the UL signals from the UE 104 may be received by the antennas 734 and 735, processed by the modulator/demodulators 732 and 733, detected by a MIMO detector 736 if applicable, and further processed by a receive processor 738.
  • the receive processor 738 may provide decoded data to a data output and to the processor 740 or memory 742.
  • the processor 740 may in some cases execute stored instructions to instantiate a UE communicating component 252 (see e.g., FIGS. 1 and 3).
  • the components of the UE 104 may, individually or collectively, be implemented with one or more ASICs adapted to perform some or all of the applicable functions in hardware.
  • Each of the noted modules may be a means for performing one or more functions related to operation of the MIMO communication system 700.
  • the components of the base station 102 may, individually or collectively, be implemented with one or more ASICs adapted to perform some or all of the applicable functions in hardware.
  • Each of the noted components may be a means for performing one or more functions related to operation of the MIMO communication system 700.
  • Example 1 A method of wireless communication at a network entity, comprising: transmitting, to a user equipment (UE), an indication of repetitive scheduling of a downlink control channel, wherein the indication triggers a correspondence between the repetitive scheduling of the downlink control channel and one or more repetition factors for an uplink control channel, each of the one or more repetition factors corresponding to a repetition count for uplink control messages on the uplink control channel; and receiving, from the UE on the uplink control channel, repetitions of an uplink control message according to a first repetition factor of the one or more repetition factors for the uplink control channel.
  • Example 2. The method of example 1, further comprising determining a configuration between the one or more repetition factors for the uplink control channel and the repetitive scheduling of the downlink control channel.
  • Example 3 The method of examples 1 and 2, wherein transmitting the indication of repetitive scheduling of the downlink control channel further comprises transmitting the indication of repetitive scheduling of the downlink control channel based on the configuration between the one or more repetition factors for the uplink control channel and the repetitive scheduling of the downlink control channel.
  • Example 4 The method of example 1, wherein the indication triggers the correspondence between the repetitive scheduling of the downlink control channel and the one or more repetition factors for the uplink control channel that carries one or more acknowledgement (ACK) or negative ACK (NACK) messages for the downlink control channel.
  • ACK acknowledgement
  • NACK negative ACK
  • Example 5 The method of example 1, wherein the indication triggers the correspondence between the repetitive scheduling of the downlink control channel and the one or more repetition factors for one or more uplink control channels other than the uplink control channel that carries one or more acknowledgement (ACK) or negative ACK (NACK) messages for the downlink control channel.
  • ACK acknowledgement
  • NACK negative ACK
  • Example 6 The method of example 1, wherein the indication of repetitive scheduling of the downlink control channel corresponds to a radio resource control (RRC) message.
  • RRC radio resource control
  • Example 7 The method of examples 1 and 6, wherein transmitting the indication of repetitive scheduling of the downlink control channel further comprises transmitting the RRC message based on a resource set of the uplink control channel.
  • Example 8. The method of examples 1, 6, and 7, further comprising: performing a configuration of the resource set of the uplink control channel; and wherein transmitting the RRC message further comprising transmitting the RRC message in response to performing the configuration of the resource set of the uplink control channel.
  • Example 9 The method of example 1, wherein transmitting the indication of repetitive scheduling of the downlink control channel further comprises transmitting the indication of repetitive scheduling of the downlink control channel based on at least one of an uplink control channel format, an uplink control information (UCI) size and an UCI content.
  • Example 10. The method of example 1, wherein the indication of repetitive scheduling of the downlink control channel corresponds to a downlink control information (DCI).
  • DCI downlink control information
  • Example 11 A method of wireless communication at a user equipment (UE), comprising: receiving, from a network entity, an indication of repetitive scheduling of a downlink control channel, wherein the indication triggers a correspondence between the repetitive scheduling of the downlink control channel and one or more repetition factors for an uplink control channel, each of the one or more repetition factors corresponding to a repetition count for uplink control messages on the uplink control channel; and transmitting, to the network entity on the uplink control channel, repetitions of an uplink control message according to a first repetition factor of the one or more repetition factors for the uplink control channel.
  • Example 12 The method of example 11, wherein the indication triggers the correspondence between the repetitive scheduling of the downlink control channel and the one or more repetition factors for the uplink control channel that carries one or more acknowledgement (ACK) or negative ACK (NACK) messages for the downlink control channel.
  • ACK acknowledgement
  • NACK negative ACK
  • Example 13 The method of example 11, wherein the indication triggers the correspondence between the repetitive scheduling of the downlink control channel and the one or more repetition factors for one or more uplink control channels other than the uplink control channel that carries one or more acknowledgement (ACK) or negative ACK (NACK) messages for the downlink control channel.
  • ACK acknowledgement
  • NACK negative ACK
  • Example 14 The method of example 11, wherein the indication of repetitive scheduling of the downlink control channel corresponds to a radio resource control (RRC) message.
  • RRC radio resource control
  • Example 15 The method of examples 11 and 14, wherein receiving the indication of repetitive scheduling of the downlink control channel further comprises receiving the RRC message based on a resource set of the uplink control channel.
  • Example 16 The method of example 11, wherein receiving the indication of repetitive scheduling of the downlink control channel further comprises receiving the indication of repetitive scheduling of the downlink control channel based on at least one of an uplink control channel format, an uplink control information (UCI) size and an UCI content.
  • Example 17 The method of example 11, wherein the indication of repetitive scheduling of the downlink control channel corresponds to a downlink control information (DCI).
  • DCI downlink control information
  • Example 18 An apparatus for wireless communication at a network entity, comprising: a transceiver; a memory configured to store instructions; and one or more processors communicatively coupled with the transceiver and the memory, wherein the one or more processors are configured to execute the instructions to: transmit, to a user equipment (UE), an indication of repetitive scheduling of a downlink control channel, wherein the indication triggers a correspondence between the repetitive scheduling of the downlink control channel and one or more repetition factors for an uplink control channel, each of the one or more repetition factors corresponding to a repetition count for uplink control messages on the uplink control channel; and receive, from the UE on the uplink control channel, repetitions of an uplink control message according to a first repetition factor of the one or more repetition factors for the uplink control channel.
  • UE user equipment
  • Example 19 The apparatus of example 18, wherein the one or more processors are configured to determine a configuration between the one or more repetition factors for the uplink control channel and the repetitive scheduling of the downlink control channel.
  • Example 20 The apparatus of examples 18 and 19, wherein the one or more processors configured to transmit the indication of repetitive scheduling of the downlink control channel is further configured to transmit the indication of repetitive scheduling of the downlink control channel based on the configuration between the one or more repetition factors for the uplink control channel and the repetitive scheduling of the downlink control channel.
  • Example 21 The apparatus of example 18, wherein the indication triggers the correspondence between the repetitive scheduling of the downlink control channel and the one or more repetition factors for the uplink control channel that carries one or more acknowledgement (ACK) or negative ACK (NACK) messages for the downlink control channel.
  • ACK acknowledgement
  • NACK negative ACK
  • Example 22 The apparatus of example 18, wherein the indication triggers the correspondence between the repetitive scheduling of the downlink control channel and the one or more repetition factors for one or more uplink control channels other than the uplink control channel that carries one or more acknowledgement (ACK) or negative ACK (NACK) messages for the downlink control channel.
  • ACK acknowledgement
  • NACK negative ACK
  • Example 23 The apparatus of example 18, wherein the indication of repetitive scheduling of the downlink control channel corresponds to a radio resource control (RRC) message.
  • RRC radio resource control
  • Example 24 The apparatus of examples 18 and 23, wherein the one or more processors configured to transmit the indication of repetitive scheduling of the downlink control channel is further configured to transmit the RRC message based on a resource set of the uplink control channel.
  • Example 25 The apparatus of examples 18, 23, and 24, wherein the one or more processors are configured to: perform a configuration of the resource set of the uplink control channel; and wherein the one or more processors configured to transmit the RRC message is further configured to transmit the RRC message in response to performing the configuration of the resource set of the uplink control channel.
  • Example 26 The apparatus of example 18, wherein the one or more processors configured to transmit the indication of repetitive scheduling of the downlink control channel is further configured to transmit the indication of repetitive scheduling of the downlink control channel based on at least one of an uplink control channel format, an uplink control information (UCI) size and an UCI content.
  • the one or more processors configured to transmit the indication of repetitive scheduling of the downlink control channel is further configured to transmit the indication of repetitive scheduling of the downlink control channel based on at least one of an uplink control channel format, an uplink control information (UCI) size and an UCI content.
  • UCI uplink control information
  • Example 27 An apparatus for wireless communication at a user equipment (UE), comprising: a transceiver; a memory configured to store instructions; and one or more processors communicatively coupled with the transceiver and the memory, wherein the one or more processors are configured to execute the instructions to: receive, from a network entity, an indication of repetitive scheduling of a downlink control channel, wherein the indication triggers a correspondence between the repetitive scheduling of the downlink control channel and one or more repetition factors for an uplink control channel, each of the one or more repetition factors corresponding to a repetition count for uplink control messages on the uplink control channel; and transmit, to the network entity on the uplink control channel, repetitions of an uplink control message according to a first repetition factor of the one or more repetition factors for the uplink control channel.
  • UE user equipment
  • Example 28 The apparatus of example 27, wherein the indication triggers the correspondence between the repetitive scheduling of the downlink control channel and the one or more repetition factors for the uplink control channel that carries one or more acknowledgement (ACK) or negative ACK (NACK) messages for the downlink control channel.
  • ACK acknowledgement
  • NACK negative ACK
  • Example 29 The apparatus of example 27, wherein the indication triggers the correspondence between the repetitive scheduling of the downlink control channel and the one or more repetition factors for one or more uplink control channels other than the uplink control channel that carries one or more acknowledgement (ACK) or negative ACK (NACK) messages for the downlink control channel.
  • ACK acknowledgement
  • NACK negative ACK
  • Example 30 The apparatus of example 27, wherein the indication of repetitive scheduling of the downlink control channel corresponds to a radio resource control (RRC) message.
  • RRC radio resource control
  • Information and signals may be represented using any of a variety of different technologies and techniques.
  • data, instructions, commands, information, signals, bits, symbols, and chips that may be referenced throughout the above description may be represented by voltages, currents, electromagnetic waves, magnetic fields or particles, optical fields or particles, computer-executable code or instructions stored on a computer-readable medium, or any combination thereof.
  • a specially-programmed device such as but not limited to a processor, a digital signal processor (DSP), an ASIC, a FPGA or other programmable logic device, a discrete gate or transistor logic, a discrete hardware component, or any combination thereof designed to perform the functions described herein.
  • DSP digital signal processor
  • a specially-programmed processor may be a microprocessor, but in the alternative, the processor may be any conventional processor, controller, microcontroller, or state machine.
  • a specially-programmed processor may also be implemented as a combination of computing devices, e.g., a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration.
  • the functions described herein may be implemented in hardware, software, or any combination thereof. If implemented in software executed by a processor, the functions may be stored on or transmitted over as one or more instructions or code on a non- transitory computer-readable medium. Other examples and implementations are within the scope and spirit of the disclosure and appended claims. For example, due to the nature of software, functions described above can be implemented using software executed by a specially programmed processor, hardware, hardwiring, or combinations of any of these. Features implementing functions may also be physically located at various positions, including being distributed such that portions of functions are implemented at different physical locations.
  • the term “or” is intended to mean an inclusive “or” rather than an exclusive “or.” That is, unless specified otherwise, or clear from the context, the phrase, for example, “X employs A or B” is intended to mean any of the natural inclusive permutations. That is, for example the phrase “X employs A or B” is satisfied by any of the following instances: X employs A; X employs B; or X employs both A and B.
  • Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another.
  • a storage medium may be any available medium that can be accessed by a general purpose or special purpose computer.
  • computer-readable media can comprise RAM, ROM, EEPROM, CD- ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to carry or store desired program code means in the form of instructions or data structures and that can be accessed by a general- purpose or special-purpose computer, or a general-purpose or special-purpose processor.
  • any connection is properly termed a computer-readable medium.
  • Disk and disc include compact disc (CD), laser disc, optical disc, digital versatile disc (DVD), floppy disk and Blu-ray disc where disks usually reproduce data magnetically, while discs reproduce data optically with lasers. Combinations of the above are also included within the scope of computer-readable media.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Des aspects de la présente invention concernent des répétitions de transmissions de liaison montante. Dans un exemple, une entité de réseau peut transmettre, à un équipement utilisateur (UE), une indication de programmation répétitive d'un canal de commande de liaison descendante, l'indication déclenchant une correspondance entre la programmation répétitive du canal de commande de liaison descendante et un ou plusieurs facteurs de répétition pour un canal de commande de liaison montante, chacun du ou des facteurs de répétition correspondant à un nombre de répétitions pour des messages de commande de liaison montante sur le canal de commande de liaison montante ; et recevoir, en provenance de l'UE sur le canal de commande de liaison montante, des répétitions d'un message de commande de liaison montante selon un premier facteur de répétition du ou des facteurs de répétition pour le canal de commande de liaison montante.
PCT/US2022/071359 2021-04-02 2022-03-25 Techniques pour répétition de pucch basées sur une répétition de pdcch WO2022213046A1 (fr)

Priority Applications (2)

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EP22718030.4A EP4315691A1 (fr) 2021-04-02 2022-03-25 Techniques pour répétition de pucch basées sur une répétition de pdcch
CN202280024377.3A CN117121410A (zh) 2021-04-02 2022-03-25 用于基于pdcch重复的pucch重复的技术

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US202163170300P 2021-04-02 2021-04-02
US63/170,300 2021-04-02
US17/703,410 US20220322391A1 (en) 2021-04-02 2022-03-24 Techniques for pucch repetition based on pdsch repetition
US17/703,410 2022-03-24

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Citations (2)

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Publication number Priority date Publication date Assignee Title
EP3113404A1 (fr) * 2014-02-24 2017-01-04 LG Electronics Inc. Procédé d'émission répétitive de canal pour extension de couverture, et terminal associé
EP3411976A1 (fr) * 2016-02-05 2018-12-12 Telefonaktiebolaget LM Ericsson (PUBL) Procédés de détermination du nombre de répétitions de pucch pour équipements utilisateurs mtc

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Publication number Priority date Publication date Assignee Title
EP3113404A1 (fr) * 2014-02-24 2017-01-04 LG Electronics Inc. Procédé d'émission répétitive de canal pour extension de couverture, et terminal associé
EP3411976A1 (fr) * 2016-02-05 2018-12-12 Telefonaktiebolaget LM Ericsson (PUBL) Procédés de détermination du nombre de répétitions de pucch pour équipements utilisateurs mtc

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QUALCOMM INCORPORATED: "PUCCH coverage enhancements", vol. RAN WG1, no. e-Meeting; 20210125 - 20210205, 19 January 2021 (2021-01-19), XP051971645, Retrieved from the Internet <URL:https://ftp.3gpp.org/tsg_ran/WG1_RL1/TSGR1_104-e/Docs/R1-2101480.zip R1-2101480 PUCCH coverage enhancements.docx> [retrieved on 20210119] *

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