WO2020220236A1 - Multiplexage de réponses de rétroaction - Google Patents

Multiplexage de réponses de rétroaction Download PDF

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Publication number
WO2020220236A1
WO2020220236A1 PCT/CN2019/085093 CN2019085093W WO2020220236A1 WO 2020220236 A1 WO2020220236 A1 WO 2020220236A1 CN 2019085093 W CN2019085093 W CN 2019085093W WO 2020220236 A1 WO2020220236 A1 WO 2020220236A1
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WO
WIPO (PCT)
Prior art keywords
transmission reception
reception point
feedback response
identifier
uplink channel
Prior art date
Application number
PCT/CN2019/085093
Other languages
English (en)
Inventor
Chenxi Zhu
Bingchao LIU
Wei Ling
Original Assignee
Lenovo (Beijing) Limited
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Publication date
Application filed by Lenovo (Beijing) Limited filed Critical Lenovo (Beijing) Limited
Priority to PCT/CN2019/085093 priority Critical patent/WO2020220236A1/fr
Publication of WO2020220236A1 publication Critical patent/WO2020220236A1/fr

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    • 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
    • H04L1/1854—Scheduling and prioritising arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • H04B7/2615—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using hybrid frequency-time division multiple access [FDMA-TDMA]

Definitions

  • the subject matter disclosed herein relates generally to wireless communications and more particularly relates to multiplexing feedback responses.
  • HARQ-ACK may represent collectively the Positive Acknowledge ( “ACK” ) and the Negative Acknowledge ( “NAK” ) .
  • ACK means that a TB is correctly received while NAK means a TB is erroneously received.
  • multiple TRPs may be used.
  • feedback may be provided for data sent by the TRPs.
  • the method includes receiving first downlink data from a first transmission reception point. In certain embodiments, the method includes receiving second downlink data from a second transmission reception point. In some embodiments, the method includes multiplexing a first feedback response corresponding to the first downlink data with a second feedback response corresponding to the second downlink data into a message. In various embodiments, the method includes transmitting the message to the first transmission reception point or the second transmission reception point.
  • An apparatus for multiplexing feedback responses includes a receiver that: receives first downlink data from a first transmission reception point; and receives second downlink data from a second transmission reception point.
  • the apparatus includes a processor that multiplexes a first feedback response corresponding to the first downlink data with a second feedback response corresponding to the second downlink data into a message.
  • the apparatus includes a transmitter that transmits the message to the first transmission reception point or the second transmission reception point.
  • a method for receiving a message with multiple feedback responses includes transmitting first downlink data from a first transmission reception point.
  • the method includes receiving a message from a user equipment, the message comprising a first feedback response corresponding to the first downlink data and a second feedback response corresponding to second downlink data transmitted from a second transmission reception point.
  • the method includes transmitting the second feedback response to the second transmission reception point.
  • An apparatus for receiving a message with multiple feedback responses includes a transmitter that transmits first downlink data from a first transmission reception point.
  • the apparatus includes a receiver that receives a message from a user equipment, the message comprising a first feedback response corresponding to the first downlink data and a second feedback response corresponding to second downlink data transmitted from a second transmission reception point.
  • the transmitter transmits the second feedback response to the second transmission reception point.
  • Figure 1 is a schematic block diagram illustrating one embodiment of a wireless communication system for multiplexing and/or demultiplexing feedback responses
  • Figure 2 is a schematic block diagram illustrating one embodiment of an apparatus that may be used for multiplexing feedback responses
  • Figure 3 is a schematic block diagram illustrating one embodiment of an apparatus that may be used for receiving a message with multiple feedback responses
  • Figure 4 is a schematic block diagram illustrating one embodiment of a system for multi TRP communication
  • Figure 5 is a schematic block diagram illustrating one embodiment of a system having multiple TRPs
  • Figure 6 is a schematic block diagram illustrating one embodiment of a first TRP having a first identifier
  • Figure 7 is a schematic block diagram illustrating one embodiment of a message having multiple feedback responses
  • Figure 8 is a schematic flow chart diagram illustrating one embodiment of a method for multiplexing feedback responses.
  • Figure 9 is a schematic flow chart diagram illustrating one embodiment of a method for receiving a message with multiple feedback responses.
  • embodiments may be embodied as a system, apparatus, method, or program product. Accordingly, embodiments may take the form of an entirely hardware embodiment, an entirely software embodiment (including firmware, resident software, micro-code, etc. ) or an embodiment combining software and hardware aspects that may all generally be referred to herein as a “circuit, ” “module” or “system. ” Furthermore, embodiments may take the form of a program product embodied in one or more computer readable storage devices storing machine readable code, computer readable code, and/or program code, referred hereafter as code. The storage devices may be tangible, non-transitory, and/or non-transmission. The storage devices may not embody signals. In a certain embodiment, the storage devices only employ signals for accessing code.
  • modules may be implemented as a hardware circuit comprising custom very-large-scale integration ( “VLSI” ) circuits or gate arrays, off-the-shelf semiconductors such as logic chips, transistors, or other discrete components.
  • VLSI very-large-scale integration
  • a module may also be implemented in programmable hardware devices such as field programmable gate arrays, programmable array logic, programmable logic devices or the like.
  • Modules may also be implemented in code and/or software for execution by various types of processors.
  • An identified module of code may, for instance, include one or more physical or logical blocks of executable code which may, for instance, be organized as an object, procedure, or function. Nevertheless, the executables of an identified module need not be physically located together, but may include disparate instructions stored in different locations which, when joined logically together, include the module and achieve the stated purpose for the module.
  • a module of code may be a single instruction, or many instructions, and may even be distributed over several different code segments, among different programs, and across several memory devices.
  • operational data may be identified and illustrated herein within modules, and may be embodied in any suitable form and organized within any suitable type of data structure. The operational data may be collected as a single data set, or may be distributed over different locations including over different computer readable storage devices.
  • the software portions are stored on one or more computer readable storage devices.
  • the computer readable medium may be a computer readable storage medium.
  • the computer readable storage medium may be a storage device storing the code.
  • the storage device may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, holographic, micromechanical, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing.
  • a storage device More specific examples (a non-exhaustive list) of the storage device would include the following: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a random access memory ( “RAM” ) , a read-only memory ( “ROM” ) , an erasable programmable read-only memory ( “EPROM” or Flash memory) , a portable compact disc read-only memory (CD-ROM” ) , an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.
  • a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
  • Code for carrying out operations for embodiments may be any number of lines and may be written in any combination of one or more programming languages including an object oriented programming language such as Python, Ruby, Java, Smalltalk, C++, or the like, and conventional procedural programming languages, such as the "C" programming language, or the like, and/or machine languages such as assembly languages.
  • the code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server.
  • the remote computer may be connected to the user's computer through any type of network, including a local area network ( “LAN” ) or a wide area network ( “WAN” ) , or the connection may be made to an external computer (for example, through the Internet using an Internet Service Provider) .
  • LAN local area network
  • WAN wide area network
  • the code may also be stored in a storage device that can direct a computer, other programmable data processing apparatus, or other devices to function in a particular manner, such that the instructions stored in the storage device produce an article of manufacture including instructions which implement the function/act specified in the schematic flowchart diagrams and/or schematic block diagrams block or blocks.
  • the code may also be loaded onto a computer, other programmable data processing apparatus, or other devices to cause a series of operational steps to be performed on the computer, other programmable apparatus or other devices to produce a computer implemented process such that the code which execute on the computer or other programmable apparatus provide processes for implementing the functions/acts specified in the flowchart and/or block diagram block or blocks.
  • each block in the schematic flowchart diagrams and/or schematic block diagrams may represent a module, segment, or portion of code, which includes one or more executable instructions of the code for implementing the specified logical function (s) .
  • Figure 1 depicts an embodiment of a wireless communication system 100 for multiplexing and/or demultiplexing feedback responses.
  • the wireless communication system 100 includes remote units 102 and network units 104. Even though a specific number of remote units 102 and network units 104 are depicted in Figure 1, one of skill 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.
  • the remote units 102 may include computing devices, such as desktop computers, laptop computers, personal digital assistants ( “PDAs” ) , tablet computers, smart phones, smart televisions (e.g., televisions connected to the Internet) , set-top boxes, game consoles, security systems (including security cameras) , vehicle on-board computers, network devices (e.g., routers, switches, modems) , IoT devices, or the like.
  • the remote units 102 include wearable devices, such as smart watches, fitness bands, optical head-mounted displays, or the like.
  • the remote units 102 may be referred to as subscriber units, mobiles, mobile stations, users, terminals, mobile terminals, fixed terminals, subscriber stations, UE, user terminals, a device, or by other terminology used in the art.
  • the remote units 102 may communicate directly with one or more of the network units 104 via UL communication signals and/or the remote units 102 may communicate directly with other remote units 102 via sidelink communication.
  • the network units 104 may be distributed over a geographic region.
  • a network unit 104 may also be referred to as an access point, an access terminal, a base, a base station, a Node-B, an eNB, a gNB, a Home Node-B, a RAN, a relay node, a device, a network device, an IAB node, a donor IAB node, or by any other terminology used in the art.
  • the network units 104 are generally part of a radio access network that includes one or more controllers communicably coupled to one or more corresponding network units 104.
  • the radio access network is generally communicably coupled to one or more core networks, which may be coupled to other networks, like the Internet and public switched telephone networks, among other networks.
  • core networks like the Internet and public switched telephone networks, among other networks.
  • the wireless communication system 100 is compliant with the 5G or NG (Next Generation) standard of the 3GPP protocol, wherein the network unit 104 transmits using NG RAN technology. More generally, however, the wireless communication system 100 may implement some other open or proprietary communication protocol, for example, WiMAX, among other protocols.
  • the present disclosure is not intended to be limited to the implementation of any particular wireless communication system architecture or protocol.
  • the network units 104 may serve a number of remote units 102 within a serving area, for example, a cell or a cell sector via a wireless communication link.
  • the network units 104 transmit DL communication signals to serve the remote units 102 in the time, frequency, and/or spatial domain.
  • a remote unit 102 may receive first downlink data from a first transmission reception point. In certain embodiments, the remote unit 102 may receive second downlink data from a second transmission reception point. In some embodiments, the remote unit 102 may multiplex a first feedback response corresponding to the first downlink data with a second feedback response corresponding to the second downlink data into a message. In various embodiments, the remote unit 102 may transmit the message to the first transmission reception point or the second transmission reception point. Accordingly, a remote unit 102 may be used for multiplexing feedback responses.
  • a network unit 104 may transmit first downlink data from a first transmission reception point.
  • the network unit 104 may receive a message from a user equipment, the message comprising a first feedback response corresponding to the first downlink data and a second feedback response corresponding to second downlink data transmitted from a second transmission reception point.
  • the network unit 104 may transmit the second feedback response to the second transmission reception point. Accordingly, a network unit 104 may be used for receiving a message with multiple feedback responses.
  • Figure 2 depicts one embodiment of an apparatus 200 that may be used for multiplexing feedback responses.
  • the apparatus 200 includes one embodiment of the remote unit 102.
  • 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.
  • the input device 206 and the display 208 are combined into a single device, such as a touchscreen.
  • the remote unit 102 may not include any input device 206 and/or display 208.
  • the remote unit 102 may include one or more of the processor 202, the memory 204, the transmitter 210, and the receiver 212, and may not include the input device 206 and/or the display 208.
  • the processor 202 may include any known controller capable of executing computer-readable instructions and/or capable of performing logical operations.
  • the processor 202 may be a microcontroller, a microprocessor, a central processing unit ( “CPU” ) , a graphics processing unit ( “GPU” ) , an auxiliary processing unit, a field programmable gate array ( “FPGA” ) , or similar programmable controller.
  • the processor 202 executes instructions stored in the memory 204 to perform the methods and routines described herein.
  • the processor 202 may multiplex a first feedback response corresponding to first downlink data with a second feedback response corresponding to second downlink data into a message.
  • the processor 202 is communicatively coupled to the memory 204, the input device 206, the display 208, the transmitter 210, and the receiver 212.
  • the memory 204 in one embodiment, is a computer readable storage medium.
  • the memory 204 includes volatile computer storage media.
  • the memory 204 may include a RAM, including dynamic RAM ( “DRAM” ) , synchronous dynamic RAM ( “SDRAM” ) , and/or static RAM ( “SRAM” ) .
  • the memory 204 includes non-volatile computer storage media.
  • the memory 204 may include a hard disk drive, a flash memory, or any other suitable non-volatile computer storage device.
  • the memory 204 includes both volatile and non-volatile computer storage media.
  • the memory 204 also stores program code and related data, such as an operating system or other controller algorithms operating on the remote unit 102.
  • the input device 206 may include any known computer input device including a touch panel, a button, a keyboard, a stylus, a microphone, or the like.
  • the input device 206 may be integrated with the display 208, for example, as a touchscreen or similar touch-sensitive display.
  • the input device 206 includes a touchscreen such that text may be input using a virtual keyboard displayed on the touchscreen and/or by handwriting on the touchscreen.
  • the input device 206 includes two or more different devices, such as a keyboard and a touch panel.
  • the display 208 may include any known electronically controllable display or display device.
  • the display 208 may be designed to output visual, audible, and/or haptic signals.
  • the display 208 includes an electronic display capable of outputting visual data to a user.
  • the display 208 may include, but is not limited to, an LCD display, an LED display, an OLED display, a projector, or similar display device capable of outputting images, text, or the like to a user.
  • the display 208 may include a wearable display such as a smart watch, smart glasses, a heads-up display, or the like.
  • the display 208 may be a component of a smart phone, a personal digital assistant, a television, a table computer, a notebook (laptop) computer, a personal computer, a vehicle dashboard, or the like.
  • the display 208 includes one or more speakers for producing sound.
  • the display 208 may produce an audible alert or notification (e.g., a beep or chime) .
  • the display 208 includes one or more haptic devices for producing vibrations, motion, or other haptic feedback.
  • all or portions of the display 208 may be integrated with the input device 206.
  • the input device 206 and display 208 may form a touchscreen or similar touch-sensitive display.
  • the display 208 may be located near the input device 206.
  • the transmitter 210 is used to provide UL communication signals to the network unit 104 and the receiver 212 is used to receive DL communication signals from the network unit 104.
  • the receiver 212 receives first downlink data from a first transmission reception point; and receives second downlink data from a second transmission reception point.
  • the transmitter 210 transmits a message to the first transmission reception point or the second transmission reception point.
  • the remote unit 102 may have any suitable number of transmitters 210 and receivers 212.
  • the transmitter 210 and the receiver 212 may be any suitable type of transmitters and receivers.
  • the transmitter 210 and the receiver 212 may be part of a transceiver.
  • Figure 3 depicts one embodiment of an apparatus 300 that may be used for receiving a message with multiple feedback responses.
  • the apparatus 300 includes one embodiment of the network unit 104.
  • the network unit 104 may include a processor 302, a memory 304, an input device 306, a display 308, a transmitter 310, and a receiver 312.
  • the processor 302, the memory 304, the input device 306, the display 308, the transmitter 310, and the receiver 312 may be substantially similar to the processor 202, the memory 204, the input device 206, the display 208, the transmitter 210, and the receiver 212 of the remote unit 102, respectively.
  • the transmitter 310 transmits first downlink data from a first transmission reception point.
  • the receiver 312 receives a message from a user equipment, the message comprising a first feedback response corresponding to the first downlink data and a second feedback response corresponding to second downlink data transmitted from a second transmission reception point.
  • the processor 302 may demultiplex the first feedback response and the second feedback response from the message.
  • the transmitter 310 transmits the second feedback response to the second transmission reception point.
  • the network unit 104 may have any suitable number of transmitters 310 and receivers 312.
  • the transmitter 310 and the receiver 312 may be any suitable type of transmitters and receivers.
  • the transmitter 310 and the receiver 312 may be part of a transceiver.
  • FIG. 4 is a schematic block diagram illustrating one embodiment of a system 400 for multi TRP communication.
  • the system 400 includes a first TRP 402 and a second TRP 404 that make concurrent (e.g., simultaneous, overlapping) transmissions to a UE 406 (e.g., having one or more panels) .
  • the system 400 may include multiple PDCCHs that schedule multiple PDSCHs and/or PUSCHs from the first TRP 402 and the second TRP 404.
  • communications between the first TRP 402 and the UE 406 may include communications 408, such as PDCCH (e.g., PDCCH1) , PDSCH (e.g., PDSCH1) , and PUSCH (e.g., PUSCH1)
  • communications between the second TRP 404 and the UE 406 may include communications 410, such as PDCCH (e.g., PDCCH2) , PDSCH (e.g., PDSCH2) , and PUSCH (e.g., PUSCH2) .
  • PDCCH e.g., PDCCH2
  • PDSCH e.g., PDSCH2
  • PUSCH e.g., PUSCH2
  • the UE 406 may send ACK/NACK separately to each of the first TRP 402 and the second TRP 404.
  • transmission delay may be reduced by sending ACK/NACK for both of the first TRP 402 and the second TRP 404 multiplexed together and transmitted to only the first TRP 402 (or the second TRP 404) .
  • the first TRP 402 and the second TRP 404 are connected with ideal backhaul, the first TRP 402 may transmit the ACK/NACK corresponding to the second TRP 404 over the ideal backhaul channel.
  • the UE 406 is configured with a set of CORESETs (e.g., one or more) for monitoring PDCCH.
  • the network may configure the UE 406 with a set of TRPs (e.g., two or more) that the UE 406 may multiplex HARQ ACK/NACK feedback together for.
  • the set of TRPs may be configured via RRC messaging.
  • only TRPs that are within a configured set of TRPs can have ACK/NACK feedback corresponding to the TRPs multiplexed together and sent to one of the TRPs in the configured set of TRPs.
  • the TRPs in a set of configured TRPs may communicate with one another to enable transmission of feedback data between the TRPs.
  • the TRPs in a set of configured TRPs may communicate with one another using an ideal backhaul channel.
  • FIG. 5 is a schematic block diagram illustrating one embodiment of a system 500 having multiple TRPs.
  • the system 500 includes a first TRP 502 and a second TRP 504.
  • the first TRP 502 has a first identifier 506 that identifies the first TRP 502, and the second TRP 504 has a second identifier 508 that identifiers the second TRP 504.
  • FIG. 6 is a schematic block diagram illustrating one embodiment of the first TRP 502 having the first identifier 506.
  • the embodiments described in relation to Figure 6 may apply to any TRP.
  • the first identifier 506 may be defined as a first CORESET identifier 602. If the first TRP 502 includes multiple CORESETs, the first identifier 506 may select one of the CORESET identifiers as the first identifier 506. In the illustrated embodiment, the first TRP 502 includes two CORESETs and selects the first identifier 506 from the first CORESET identifier 602 and a second CORESET identifier 604.
  • the first identifier 506 is a lowest CORESET ID from among the first CORESET identifier 602 and the second CORESET identifier 604. In various embodiments, the first identifier 506 is a highest CORESET ID from among the first CORESET identifier 602 and the second CORESET identifier 604.
  • the UE 406 may determine which PUCCH resource for transmitting multiplexed HARQ ACK/NACK using any suitable method.
  • the UE 406 determines the PUCCH resource for transmitting multiplexed HARQ ACK/NACK using the following rules: 1) if PUCCH resources for a TRP overlap in the time domain, determine a new PUCCH resource for the TRP using a predetermined procedure; 2) for PUCCH resources configured for transmitting to each TRP, determine whether each PUCCH resource for transmitting multiplexed HARQ ACK/NACK has sufficient resources to carry the multiplexed HARQ ACK/NACK (e.g., multiplexed HARQ ACK/NACK codebook) ; 3) only use PUCCH resources that have sufficient resources to carry the multiplexed HARQ ACK/NACK; 4) among the PUCCH resources that have sufficient resources to carry the multiplexed HARQ ACK/NACK, determine whether any of the PUCCH resources overlap in time and select one of
  • Figure 7 is a schematic block diagram illustrating one embodiment of a message 700 (e.g., multiplexed HARQ ACK/NACK) having multiple feedback responses.
  • the message 700 includes a first feedback response 702 (e.g., HARQ ACK/NACK corresponding to data transmitted from a first TRP) and a second feedback response 704 (e.g., HARQ ACK/NACK corresponding to data transmitted from a second TRP) .
  • the message 700 may include any number of feedback responses.
  • the first feedback response 702 may be the feedback response corresponding to a TRP having a lowest ID and the second feedback response 704 may be the feedback response corresponding to a TRP having a highest ID (e.g., the message 700 is arranged based on an ID corresponding to the TRP in ascending order) .
  • the first feedback response 702 may be the feedback response corresponding to a TRP having a highest ID and the second feedback response 704 may be the feedback response corresponding to a TRP having a lowest ID (e.g., the message 700 is arranged based on an ID corresponding to the TRP in descending order) .
  • each feedback response is generated using a predetermined procedure.
  • the UE 406 transmits a multiplexed HARQ ACK/NACK using a PUCCH configuration parameter (e.g., spatial relationship information, PUCCH-spatialRelationInfo, etc. ) . In various embodiments, the UE 406 transmits the multiplexed HARQ ACK/NACK only once.
  • a PUCCH configuration parameter e.g., spatial relationship information, PUCCH-spatialRelationInfo, etc.
  • Figure 8 is a schematic flow chart diagram illustrating one embodiment of a method 800 for multiplexing feedback responses.
  • the method 800 is performed by an apparatus, such as the remote unit 102.
  • the method 800 may be performed by a processor executing program code, for example, a microcontroller, a microprocessor, a CPU, a GPU, an auxiliary processing unit, a FPGA, or the like.
  • the method 800 may include receiving 802 first downlink data from a first transmission reception point. In certain embodiments, the method 800 includes receiving 804 second downlink data from a second transmission reception point. In some embodiments, the method 800 includes multiplexing 806 a first feedback response corresponding to the first downlink data with a second feedback response corresponding to the second downlink data into a message. In various embodiments, the method 800 includes transmitting 808 the message to the first transmission reception point or the second transmission reception point.
  • the method 800 further comprises determining whether: to multiplex the first feedback response and the second feedback response before multiplexing the first feedback response and the second feedback response; or to transmit the first feedback response and the second feedback response separately. In some embodiments, the method 800 further comprises receiving information indicating whether the first feedback response can be multiplexed with the second feedback response. In various embodiments, the information comprises a group of transmission reception points.
  • each transmission reception point of the group of transmission reception points is capable of communicating with other transmission reception points of the group of transmission reception points over a backhaul channel.
  • the information is received in a radio resource control message.
  • a first set of control resource sets corresponds to the first transmission reception point and a second set of control resource sets corresponds to the second transmission reception point.
  • a control resource set or CORESET as used herein may refer to a set of physical resources and/or a set of parameters used to carry PDCCH and/or DCI.
  • control resource sets may be defined by an RRC configuration.
  • a first identifier corresponding to the first set of control resource sets identifies the first transmission reception point and a second identifier corresponding to the second set of control resource sets identifies the second transmission reception point.
  • the first identifier is a lowest control resource set identifier corresponding to the first set of control resource sets and the second identifier is a lowest control resource set identifier corresponding to the second set of control resource sets.
  • the method 800 further comprises selecting to transmit the message to the first transmission reception point or the second transmission reception point based on a first uplink channel configuration corresponding to the first transmission reception point and a second uplink channel configuration corresponding to the second transmission reception point.
  • selecting to transmit the message to the first transmission reception point or the second transmission reception point comprises determining whether a first uplink channel corresponding to the first uplink channel configuration overlaps with a second uplink channel corresponding to the second uplink channel configuration.
  • the method 800 further comprises, in response to the first uplink channel overlapping with the second uplink channel, selecting to transmit the message to the first transmission reception point or the second transmission reception point based on a first size of the first uplink channel and a second size of the second uplink channel, a first time to completion for the first uplink channel and a second time to completion for the second uplink channel, or a combination thereof.
  • a time to completion may refer to a time at which a transmission (e.g., PUCCH transmission) is complete (e.g., a time at the end of a last symbol used for a transmission, such as a time at the end of a last OFDM symbol used for PUCCH) .
  • the method 800 further comprises, in response to the first uplink channel overlapping with the second uplink channel, selecting to transmit the message to the first transmission reception point or the second transmission reception point based on a first size of the first uplink channel and a second size of the second uplink channel, a first identifier corresponding to the first uplink channel and a second identifier corresponding to the second uplink channel, or a combination thereof.
  • the method 800 further comprises selecting to transmit the message to the first transmission reception point or the second transmission reception point based on first spatial relationship information in the first uplink channel configuration and second spatial relationship information in the second uplink channel configuration.
  • multiplexing the first feedback response corresponding to the first downlink data with the second feedback response corresponding to the second downlink data into the message comprises generating the first feedback response based on a first downlink assignment index corresponding to the first transmission reception point and generating the second feedback response based on a second downlink assignment index corresponding to the second transmission reception point.
  • the method 800 further comprises assigning a first identifier to the first transmission reception point and a second identifier to the second transmission reception point, wherein the first identifier corresponds to the first feedback response and the second identifier corresponds to the second feedback response.
  • multiplexing the first feedback response corresponding to the first downlink data with the second feedback response corresponding to the second downlink data into the message comprises multiplexing the first feedback response and the second feedback response based on the first identifier and the second identifier.
  • multiplexing the first feedback response corresponding to the first downlink data with the second feedback response corresponding to the second downlink data into the message comprises concatenating the first feedback response and the second feedback response into the message based on the first identifier and the second identifier.
  • Figure 9 is a schematic flow chart diagram illustrating one embodiment of a method 900 for receiving a message with multiple feedback responses.
  • the method 900 is performed by an apparatus, such as the network unit 104.
  • the method 900 may be performed by a processor executing program code, for example, a microcontroller, a microprocessor, a CPU, a GPU, an auxiliary processing unit, a FPGA, or the like.
  • the method 900 may include transmitting 902 first downlink data from a first transmission reception point.
  • the method 900 includes receiving 904 a message from a user equipment, the message comprising a first feedback response corresponding to the first downlink data and a second feedback response corresponding to second downlink data transmitted from a second transmission reception point.
  • the method 900 includes transmitting 906 the second feedback response to the second transmission reception point.
  • the method 900 further comprises transmitting information indicating whether the first feedback response can be multiplexed with the second feedback response.
  • the information may be transmitted from the network unit 104 to a remote unit 102 (e.g., UE) .
  • the information comprises a group of transmission reception points.
  • each transmission reception point of the group of transmission reception points is capable of communicating with other transmission reception points of the group of transmission reception points over a backhaul channel.
  • the information is transmitted in a radio resource control message.
  • a first set of control resource sets corresponds to the first transmission reception point and a second set of control resource sets corresponds to the second transmission reception point.
  • a first identifier corresponding to the first set of control resource sets identifies the first transmission reception point and a second identifier corresponding to the second set of control resource sets identifies the second transmission reception point.
  • the first identifier is a lowest control resource set identifier corresponding to the first set of control resource sets and the second identifier is a lowest control resource set identifier corresponding to the second set of control resource sets.
  • the second feedback response is transmitted to the second transmission reception point over a backhaul channel.
  • a method comprises: receiving first downlink data from a first transmission reception point; receiving second downlink data from a second transmission reception point; multiplexing a first feedback response corresponding to the first downlink data with a second feedback response corresponding to the second downlink data into a message; and transmitting the message to the first transmission reception point or the second transmission reception point.
  • the method further comprises determining whether: to multiplex the first feedback response and the second feedback response before multiplexing the first feedback response and the second feedback response; or to transmit the first feedback response and the second feedback response separately.
  • the method further comprises receiving information indicating whether the first feedback response can be multiplexed with the second feedback response.
  • the information comprises a group of transmission reception points.
  • each transmission reception point of the group of transmission reception points is capable of communicating with other transmission reception points of the group of transmission reception points over a backhaul channel.
  • the information is received in a radio resource control message.
  • a first set of control resource sets corresponds to the first transmission reception point and a second set of control resource sets corresponds to the second transmission reception point.
  • a first identifier corresponding to the first set of control resource sets identifies the first transmission reception point and a second identifier corresponding to the second set of control resource sets identifies the second transmission reception point.
  • the first identifier is a lowest control resource set identifier corresponding to the first set of control resource sets and the second identifier is a lowest control resource set identifier corresponding to the second set of control resource sets.
  • the method further comprises selecting to transmit the message to the first transmission reception point or the second transmission reception point based on a first uplink channel configuration corresponding to the first transmission reception point and a second uplink channel configuration corresponding to the second transmission reception point.
  • selecting to transmit the message to the first transmission reception point or the second transmission reception point comprises determining whether a first uplink channel corresponding to the first uplink channel configuration overlaps with a second uplink channel corresponding to the second uplink channel configuration.
  • the method further comprises, in response to the first uplink channel overlapping with the second uplink channel, selecting to transmit the message to the first transmission reception point or the second transmission reception point based on a first size of the first uplink channel and a second size of the second uplink channel, a first time to completion for the first uplink channel and a second time to completion for the second uplink channel, or a combination thereof.
  • the method further comprises, in response to the first uplink channel overlapping with the second uplink channel, selecting to transmit the message to the first transmission reception point or the second transmission reception point based on a first size of the first uplink channel and a second size of the second uplink channel, a first identifier corresponding to the first uplink channel and a second identifier corresponding to the second uplink channel, or a combination thereof.
  • the method further comprises selecting to transmit the message to the first transmission reception point or the second transmission reception point based on first spatial relationship information in the first uplink channel configuration and second spatial relationship information in the second uplink channel configuration.
  • multiplexing the first feedback response corresponding to the first downlink data with the second feedback response corresponding to the second downlink data into the message comprises generating the first feedback response based on a first downlink assignment index corresponding to the first transmission reception point and generating the second feedback response based on a second downlink assignment index corresponding to the second transmission reception point.
  • the method further comprises assigning a first identifier to the first transmission reception point and a second identifier to the second transmission reception point, wherein the first identifier corresponds to the first feedback response and the second identifier corresponds to the second feedback response.
  • multiplexing the first feedback response corresponding to the first downlink data with the second feedback response corresponding to the second downlink data into the message comprises multiplexing the first feedback response and the second feedback response based on the first identifier and the second identifier.
  • the first feedback response may be positioned first in the message if the first identifier has a lower value than the second identifier
  • the second feedback response may be positioned second in the message if the second identifier has a higher value than the first identifier.
  • the first feedback response may be positioned first in the message if the first identifier has a higher value than the second identifier, and the second feedback response may be positioned second in the message if the second identifier has a lower value than the first identifier.
  • multiplexing the first feedback response corresponding to the first downlink data with the second feedback response corresponding to the second downlink data into the message comprises concatenating the first feedback response and the second feedback response into the message based on the first identifier and the second identifier.
  • the first feedback response may be inserted first in the message if the first identifier has a lower value than the second identifier, and the second feedback response may be appended after the first feedback message if the second identifier has a higher value than the first identifier.
  • the first feedback response may be inserted first in the message if the first identifier has a higher value than the second identifier, and the second feedback response may be appended after the second feedback message if the second identifier has a lower value than the first identifier.
  • an apparatus comprises: a receiver that: receives first downlink data from a first transmission reception point; and receives second downlink data from a second transmission reception point; a processor that multiplexes a first feedback response corresponding to the first downlink data with a second feedback response corresponding to the second downlink data into a message; and a transmitter that transmits the message to the first transmission reception point or the second transmission reception point.
  • the processor determines whether: to multiplex the first feedback response and the second feedback response before multiplexing the first feedback response and the second feedback response; or to transmit the first feedback response and the second feedback response separately.
  • the receiver receives information indicating whether the first feedback response can be multiplexed with the second feedback response.
  • the information comprises a group of transmission reception points.
  • each transmission reception point of the group of transmission reception points is capable of communicating with other transmission reception points of the group of transmission reception points over a backhaul channel.
  • the information is received in a radio resource control message.
  • a first set of control resource sets corresponds to the first transmission reception point and a second set of control resource sets corresponds to the second transmission reception point.
  • a first identifier corresponding to the first set of control resource sets identifies the first transmission reception point and a second identifier corresponding to the second set of control resource sets identifies the second transmission reception point.
  • the first identifier is a lowest control resource set identifier corresponding to the first set of control resource sets and the second identifier is a lowest control resource set identifier corresponding to the second set of control resource sets.
  • the processor selects to transmit the message to the first transmission reception point or the second transmission reception point based on a first uplink channel configuration corresponding to the first transmission reception point and a second uplink channel configuration corresponding to the second transmission reception point.
  • the processor selecting to transmit the message to the first transmission reception point or the second transmission reception point comprises the processor determining whether a first uplink channel corresponding to the first uplink channel configuration overlaps with a second uplink channel corresponding to the second uplink channel configuration.
  • the processor in response to the first uplink channel overlapping with the second uplink channel, selects to transmit the message to the first transmission reception point or the second transmission reception point based on a first size of the first uplink channel and a second size of the second uplink channel, a first time to completion for the first uplink channel and a second time to completion for the second uplink channel, or a combination thereof.
  • the processor in response to the first uplink channel overlapping with the second uplink channel, selects to transmit the message to the first transmission reception point or the second transmission reception point based on a first size of the first uplink channel and a second size of the second uplink channel, a first identifier corresponding to the first uplink channel and a second identifier corresponding to the second uplink channel, or a combination thereof.
  • the processor selects to transmit the message to the first transmission reception point or the second transmission reception point based on first spatial relationship information in the first uplink channel configuration and second spatial relationship information in the second uplink channel configuration.
  • the processor multiplexing the first feedback response corresponding to the first downlink data with the second feedback response corresponding to the second downlink data into the message comprises the processor generating the first feedback response based on a first downlink assignment index corresponding to the first transmission reception point and generating the second feedback response based on a second downlink assignment index corresponding to the second transmission reception point.
  • the processor assigns a first identifier to the first transmission reception point and a second identifier to the second transmission reception point, and the first identifier corresponds to the first feedback response and the second identifier corresponds to the second feedback response.
  • the processor multiplexing the first feedback response corresponding to the first downlink data with the second feedback response corresponding to the second downlink data into the message comprises the processor multiplexing the first feedback response and the second feedback response based on the first identifier and the second identifier.
  • the processor multiplexing the first feedback response corresponding to the first downlink data with the second feedback response corresponding to the second downlink data into the message comprises the processor concatenating the first feedback response and the second feedback response into the message based on the first identifier and the second identifier.
  • a method comprises: transmitting first downlink data from a first transmission reception point; receiving a message from a user equipment, the message comprising a first feedback response corresponding to the first downlink data and a second feedback response corresponding to second downlink data transmitted from a second transmission reception point; and transmitting the second feedback response to the second transmission reception point.
  • the method further comprises transmitting information indicating whether the first feedback response can be multiplexed with the second feedback response.
  • the information comprises a group of transmission reception points.
  • each transmission reception point of the group of transmission reception points is capable of communicating with other transmission reception points of the group of transmission reception points over a backhaul channel.
  • the information is transmitted in a radio resource control message.
  • a first set of control resource sets corresponds to the first transmission reception point and a second set of control resource sets corresponds to the second transmission reception point.
  • a first identifier corresponding to the first set of control resource sets identifies the first transmission reception point and a second identifier corresponding to the second set of control resource sets identifies the second transmission reception point.
  • the first identifier is a lowest control resource set identifier corresponding to the first set of control resource sets and the second identifier is a lowest control resource set identifier corresponding to the second set of control resource sets.
  • the second feedback response is transmitted to the second transmission reception point over a backhaul channel.
  • an apparatus comprises: a transmitter that transmits first downlink data from a first transmission reception point; and a receiver that receives a message from a user equipment, the message comprising a first feedback response corresponding to the first downlink data and a second feedback response corresponding to second downlink data transmitted from a second transmission reception point; wherein the transmitter transmits the second feedback response to the second transmission reception point.
  • the transmitter transmits information indicating whether the first feedback response can be multiplexed with the second feedback response.
  • the information comprises a group of transmission reception points.
  • each transmission reception point of the group of transmission reception points is capable of communicating with other transmission reception points of the group of transmission reception points over a backhaul channel.
  • the information is transmitted in a radio resource control message.
  • a first set of control resource sets corresponds to the first transmission reception point and a second set of control resource sets corresponds to the second transmission reception point.
  • a first identifier corresponding to the first set of control resource sets identifies the first transmission reception point and a second identifier corresponding to the second set of control resource sets identifies the second transmission reception point.
  • the first identifier is a lowest control resource set identifier corresponding to the first set of control resource sets and the second identifier is a lowest control resource set identifier corresponding to the second set of control resource sets.
  • the second feedback response is transmitted to the second transmission reception point over a backhaul channel.

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

Abstract

L'invention concerne des appareils, des procédés et des systèmes de multiplexage de réponses de rétroaction. Un procédé (800) comprend la réception (802) de premières données de liaison descendante à partir d'un premier point de réception de transmission. Le procédé (800) comprend la réception (804) de secondes données de liaison descendante à partir d'un second point de réception de transmission. Le procédé (800) comprend le multiplexage (806) d'une première réponse de rétroaction correspondant aux premières données de liaison descendante avec une seconde réponse de rétroaction correspondant aux secondes données de liaison descendante pour donner un message. Le procédé (800) comprend la transmission (808) du message au premier point de réception de transmission ou au second point de réception de transmission.
PCT/CN2019/085093 2019-04-30 2019-04-30 Multiplexage de réponses de rétroaction WO2020220236A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2019/085093 WO2020220236A1 (fr) 2019-04-30 2019-04-30 Multiplexage de réponses de rétroaction

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2019/085093 WO2020220236A1 (fr) 2019-04-30 2019-04-30 Multiplexage de réponses de rétroaction

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WO2020220236A1 true WO2020220236A1 (fr) 2020-11-05

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103609187A (zh) * 2011-06-03 2014-02-26 诺基亚西门子网络公司 下行链路数据资源的调度
CN104584475A (zh) * 2012-09-28 2015-04-29 英特尔公司 eNB间载波聚合中的上行链路控制信息的传输
CN104620517A (zh) * 2012-09-09 2015-05-13 Lg电子株式会社 用于发送和接收数据的方法和设备
WO2018155820A1 (fr) * 2017-02-24 2018-08-30 엘지전자 주식회사 Procédé de traitement de bloc de données et procédé de rétroaction harq ack/nack
CN109076537A (zh) * 2016-05-20 2018-12-21 松下电器（美国）知识产权公司 基站、终端及通信方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103609187A (zh) * 2011-06-03 2014-02-26 诺基亚西门子网络公司 下行链路数据资源的调度
CN104620517A (zh) * 2012-09-09 2015-05-13 Lg电子株式会社 用于发送和接收数据的方法和设备
CN104584475A (zh) * 2012-09-28 2015-04-29 英特尔公司 eNB间载波聚合中的上行链路控制信息的传输
CN109076537A (zh) * 2016-05-20 2018-12-21 松下电器（美国）知识产权公司 基站、终端及通信方法
WO2018155820A1 (fr) * 2017-02-24 2018-08-30 엘지전자 주식회사 Procédé de traitement de bloc de données et procédé de rétroaction harq ack/nack

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