WO2020191776A1 - 一种下行数据传输方法、终端设备及存储介质 - Google Patents

一种下行数据传输方法、终端设备及存储介质 Download PDF

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Publication number
WO2020191776A1
WO2020191776A1 PCT/CN2019/080256 CN2019080256W WO2020191776A1 WO 2020191776 A1 WO2020191776 A1 WO 2020191776A1 CN 2019080256 W CN2019080256 W CN 2019080256W WO 2020191776 A1 WO2020191776 A1 WO 2020191776A1
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WIPO (PCT)
Prior art keywords
dmrs port
downlink data
indication information
data transmission
terminal device
Prior art date
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PCT/CN2019/080256
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English (en)
French (fr)
Inventor
史志华
陈文洪
方昀
黄莹沛
Original Assignee
Oppo广东移动通信有限公司
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.)
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Publication date
Priority to CN202310172421.1A priority Critical patent/CN116074971A/zh
Priority to CN202111229027.4A priority patent/CN113766655B/zh
Priority to CN201980092837.4A priority patent/CN113475150A/zh
Priority to PCT/CN2019/080256 priority patent/WO2020191776A1/zh
Priority to CA3134619A priority patent/CA3134619A1/en
Priority to BR112021018752A priority patent/BR112021018752A2/pt
Application filed by Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Priority to KR1020217031233A priority patent/KR20210139295A/ko
Priority to JP2021557424A priority patent/JP7315696B2/ja
Priority to EP19921594.8A priority patent/EP3917262B1/en
Publication of WO2020191776A1 publication Critical patent/WO2020191776A1/zh
Priority to US17/468,009 priority patent/US11368258B2/en
Priority to US17/833,416 priority patent/US12074712B2/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements 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
    • H04L1/18Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1812Hybrid protocols; Hybrid automatic repeat request [HARQ]
    • H04L1/1819Hybrid protocols; Hybrid automatic repeat request [HARQ] with retransmission of additional or different redundancy
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/0091Signaling for the administration of the divided path
    • H04L5/0094Indication of how sub-channels of the path are allocated
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access
    • H04W74/002Transmission of channel access control information
    • H04W74/006Transmission of channel access control information in the downlink, i.e. towards the terminal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • H04W72/23Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H04W72/232Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal the control data signalling from the physical layer, e.g. DCI signalling
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/022Site diversity; Macro-diversity
    • H04B7/024Co-operative use of antennas of several sites, e.g. in co-ordinated multipoint or co-operative multiple-input multiple-output [MIMO] systems
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/08Arrangements for detecting or preventing errors in the information received by repeating transmission, e.g. Verdan system
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements 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
    • H04L1/18Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1812Hybrid protocols; Hybrid automatic repeat request [HARQ]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements 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
    • H04L1/18Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1867Arrangements specially adapted for the transmitter end
    • H04L1/1887Scheduling and prioritising arrangements
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements 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
    • H04L1/18Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1867Arrangements specially adapted for the transmitter end
    • H04L1/1896ARQ related signaling
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/0001Arrangements for dividing the transmission path
    • H04L5/0003Two-dimensional division
    • H04L5/0005Time-frequency
    • H04L5/0007Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0032Distributed allocation, i.e. involving a plurality of allocating devices, each making partial allocation
    • H04L5/0035Resource allocation in a cooperative multipoint environment
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048Allocation of pilot signals, i.e. of signals known to the receiver
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/0051Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • H04W72/044Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446Resources in time domain, e.g. slots or frames
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/12Wireless traffic scheduling
    • H04W72/1263Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
    • H04W72/1273Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of downlink data flows
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • H04W72/23Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/0001Arrangements for dividing the transmission path
    • H04L5/0014Three-dimensional division
    • H04L5/0023Time-frequency-space

Definitions

  • the present invention relates to the field of wireless communication technology, in particular to a downlink data transmission method, terminal equipment and storage medium.
  • New Radio (NR) system there are multiple transmission reception points (Transmission Reception Point, TRP), or multiple antenna panels (Antenna panels), or multiple beams (beam) to simultaneously transmit downlink data to terminal devices Scene.
  • the terminal device detects a physical downlink control channel (Physical Downlink Control Channel, PDCCH) to obtain a downlink control information (DCI).
  • PDCCH Physical Downlink Control Channel
  • DCI indicates multiple TRPs, or multiple Antenna panels, or multiple beams at the same time.
  • Relevant instructions for transferring data In related technologies, downlink data transmission includes three implementation modes: one TRP transmits data on multiple time slots (slots), multiple TRPs transmit data, and multiple TRPs transmit data on multiple slots.
  • slots time slots
  • multiple TRPs transmit data
  • multiple TRPs transmit data on multiple slots.
  • embodiments of the present invention provide a downlink data transmission method, terminal equipment, and storage medium, so that the terminal equipment can switch between different downlink data transmission modes or mix different downlink data transmission modes based on DCI. .
  • an embodiment of the present invention provides a downlink data transmission method, including: a terminal device determines a transmission configuration indicator (Transmission Configuration Indicator, TCI) state corresponding to a downlink data transmission based on downlink control information; determining based on the downlink control information A Redundancy Version (RV) value corresponding to downlink data transmission; receiving downlink data based on the TCI state and the RV value.
  • TCI Transmission Configuration Indicator
  • RV Redundancy Version
  • an embodiment of the present invention provides a terminal device, the terminal device includes: a processing unit configured to determine a transmission configuration indication state corresponding to downlink data transmission based on downlink control information; and determine downlink data based on the downlink control information The corresponding redundancy version value is transmitted; the transceiver unit is configured to receive downlink data based on the transmission configuration indication state and the redundancy version value.
  • an embodiment of the present invention provides a terminal device, including: a processor and a memory configured to store a computer program that can run on the processor, wherein the processor is configured to execute the above-mentioned computer program when running the computer program The steps of the downlink data transmission method executed by the terminal device.
  • an embodiment of the present invention provides a storage medium that stores an executable program, and when the executable program is executed by a processor, it implements the downlink data transmission method executed by the terminal device.
  • the terminal device determines the transmission configuration indication state corresponding to the downlink data transmission based on the downlink control information; determines the redundancy version value corresponding to the downlink data transmission based on the downlink control information; Configure the indication state and the redundancy version value to receive downlink data.
  • the terminal device determines the transmission configuration indication state corresponding to the downlink data transmission based on the downlink control information; determines the redundancy version value corresponding to the downlink data transmission based on the downlink control information; Configure the indication state and the redundancy version value to receive downlink data.
  • the downlink data transmission is performed in multiple time slots and different TRP performs downlink data transmission, and uses different TRPs for downlink data transmission in different time slots.
  • the way to determine the transmission configuration indication state and the redundancy version value can reduce the complexity of the terminal equipment receiving downlink transmission data, reduce signaling overhead, obtain better diversity effects, and reduce delay.
  • Figure 1 is a schematic diagram of a downlink data transmission mode of the present invention
  • FIG. 2 is a schematic diagram of another downlink data transmission mode of the present invention.
  • FIG. 3 is a schematic diagram of the structure of multiple TRPs simultaneously transmitting data according to the present invention.
  • FIG. 4 is a schematic diagram of the structure of multiple beams simultaneously transmitting data according to the present invention.
  • Fig. 5 is a schematic diagram of a method for configuring the TCI state of the present invention.
  • FIG. 6 is a schematic diagram of the composition structure of a communication system according to an embodiment of the present invention.
  • FIG. 7 is a schematic diagram of an optional processing flow of a downlink data transmission method provided by an embodiment of the present invention.
  • FIG. 8 is a first schematic diagram of a TCI state provided by an embodiment of the present invention.
  • FIG. 9 is a second schematic diagram of a TCI state provided by an embodiment of the present invention.
  • FIG. 10 is a schematic diagram of the corresponding TCI state when the terminal device determines each downlink data transmission according to the third preset strategy according to the embodiment of the present invention.
  • 11 is a schematic diagram 1 of the relationship between the DMRS port set and the RV value provided by an embodiment of the present invention
  • FIG. 12 is a second schematic diagram of the relationship between the DMRS port set and the RV value provided by an embodiment of the present invention.
  • FIG. 13 is a third schematic diagram of the relationship between the DMRS port set and the RV value provided by an embodiment of the present invention.
  • FIG. 14 is a fourth schematic diagram of the relationship between the DMRS port set and the RV value provided by an embodiment of the present invention.
  • 15 is a schematic diagram 5 of the relationship between the DMRS port set and the RV value provided by an embodiment of the present invention.
  • 16 is a sixth schematic diagram of the relationship between the DMRS port set and the RV value provided by an embodiment of the present invention.
  • FIG. 17 is a seventh schematic diagram of the relationship between the DMRS port set and the RV value provided by an embodiment of the present invention.
  • 18 is the eighth schematic diagram of the relationship between the DMRS port set and the RV value provided by an embodiment of the present invention.
  • FIG. 19 is a schematic diagram of the composition structure of a terminal device provided by an embodiment of the present invention.
  • FIG. 20 is a schematic diagram of the hardware composition structure of a terminal device provided by an embodiment of the present invention.
  • a downlink data transmission method as shown in Figure 1 can be used to transmit data on multiple time slots (slots) through a TRP; another downlink data transmission method as shown in Figure 2 can also be used , Transmission on multiple TRPs; data can also be transmitted on multiple slots through multiple TRPs.
  • the structure diagram of multiple TRPs transmitting data at the same time as shown in Figure 3, the network device transmits data with the terminal device at the same time through TRP1 and TPR2; the structure diagram of multiple beams transmitting data at the same time, as shown in Figure 4, the network device passes through beam1 and beam2 transmit data with the terminal device.
  • multiple TRPs, or multiple Antenna panels, or multiple beams are available for simultaneous data transmission, except for the above-mentioned terminal device that detects multiple TRPs, or multiple Antenna panels, or multiple beams by detecting one PDCCH.
  • the terminal device receives different PDCCHs from different TRPs, or Antenna panels, or beams, detects the corresponding DCI on each PDCCH, and each DCI indicates a corresponding data transmission mode Related instructions for.
  • the terminal device obtains a DCI indicating multiple TRPs, or multiple Antenna panels, or multiple beams simultaneously transmitting data by detecting a PDCCH
  • the terminal device only needs to detect one PDCCH, so the control channel detection complexity is low, but Information needs to be quickly exchanged between different Antenna panels/TRP/beam.
  • the terminal device For the scenario where the terminal device receives different PDCCHs from different TRPs, or Antenna panels, or beams, and detects the corresponding DCI on each PDCCH, the terminal device needs to detect multiple PDCCHs on the same carrier at the same time, which is complicated. The degree of increase, but will improve the flexibility and robustness.
  • the terminal device receives different PDCCHs from different TRPs, or Antenna panels, or beams, and detects the corresponding DCI on each PDCCH, including at least the following:
  • TRPs belong to the same cell, and the connection (backhaul) between TRPs is ideal (that is, information can be exchanged quickly and dynamically).
  • TRPs belong to the same cell, and the backhaul between TRPs is not ideal (that is, TRPs cannot exchange information quickly, and can only exchange data relatively slowly).
  • TRPs belong to different cells, and the backhaul between TRPs is ideal.
  • TRPs belong to different cells, and the backhaul between TRPs is not ideal.
  • Multiple beam/Antenna panels belong to the same cell, and the backhaul between beam/Antenna panels is ideal (that is, rapid information exchange and dynamic information exchange).
  • the terminal device can use the characteristics of the transmission environment corresponding to the data transmission to improve the receiving algorithm.
  • the statistical characteristics of the channel can be used to optimize the design and parameters of the channel estimator.
  • these characteristics corresponding to data transmission are represented by QCL status (QCL-Info).
  • TCI Transmission Configuration Indicator
  • a TCI state may include: TCI state ID and QCL information 1 for identifying a TCI state; optionally, a TCI state may also include QCL information 2.
  • a QCL message contains the following information:
  • the QCL type configuration can be one of QCL type A, QCL type B, QCL type C or QCL type D;
  • the QCL reference signal configuration includes: the cell identification (ID) where the reference signal is located, the bandwidth part (BandWidth Part, BWP) ID, and the reference signal identification; where the reference signal identification may be Channel state information reference signal (Channel State Information-Reference Signal, CSI-RS) resource ID or synchronization signal block (Synchronization Signal Block, SSB) index.
  • ID the cell identification
  • BWP BandWidth Part
  • QCL type must be one of typeA, typeB, and typeC; if another QCL information is to be configured, the QCL type of the other QCL information must be QCL type D.
  • QCL type configurations is as follows:
  • the network device can indicate the corresponding TCI status for the downlink signal or downlink channel. If the network device configures the target downlink channel or the QCL reference signal of the target downlink signal as a reference SSB or reference CSI-RS resource through the TCI state, and the QCL type is configured as typeA, typeB or typeC; the terminal device can assume that the target downlink signal is The large-scale parameters of the reference SSB or the reference CSI-RS resource are the same, and the large-scale parameters are determined by QCL type configuration.
  • the terminal device can use and receive the reference SSB or reference Receive beams (ie, Spatial Rx parameter) with the same CSI-RS resources to receive the target downlink signal.
  • the target downlink channel (or target downlink signal) and its reference SSB or reference CSI-RS resource are transmitted by the same TRP or the same Antenna panel or the same beam on the network device side. If the two downlink signals or downlink channels transmit TRP, antenna panel, or beam are different, different TCI states are usually configured.
  • the TCI status can be indicated through radio access control (Radio Resource Control, RRC) signaling or a combination of RRC signaling and media access control (Media Access Control, MAC) signaling.
  • RRC Radio Resource Control
  • MAC media access control
  • the TCI status configuration method is shown in Figure 5.
  • the available TCI status set is indicated by RRC signaling, and some of the TCI statuses are activated by MAC signaling, and finally through the TCI status indication field in DCI Indicate one or two TCI states from the activated TCI state for the PDSCH scheduled by the DCI.
  • DMRS Demodulation Reference Sgnal
  • Type 1DMRS has the following attributes:
  • CDM Code Division Multiplexing
  • OFDM Orthogonal Frequency Division Multiplexing
  • Type 2DMRS has the following attributes:
  • the network device When transmitting downlink data, the network device will instruct the terminal device which ports are used for this transmission. If data is sent from different TRP/Antenna panel/beam, the ports in the same CDM group will be sent from one TRP/panel/beam; therefore, the corresponding characteristics will be similar ('QCL-TypeA','QCL-TypeB' ,'QCL-TypeC','QCL-TypeD'); correspondingly, it can correspond to the same TCI state. Different CDM groups may be sent from different TRP/Antenna panels/beams, which can correspond to different TCI states.
  • the downlink data transmission method in the embodiment of the present invention can be applied to multiple downlink data transmissions; for example, in order to improve the transmission reliability of PDSCH, repeat PDSCH transmission, that is, PDSCH carrying the same data passes through different time slots/TRP/Antenna panel/beam /Redundancy Version (RV) and other multiple transmissions to obtain diversity gain and reduce the probability of false detection (BLER).
  • RV Redundancy Version
  • the present invention provides a downlink data transmission method.
  • the downlink data transmission in the embodiments of this application can be applied to various communication systems, such as: Global System of Mobile Communications (GSM) system, Code Division Multiple Access (Code Division Multiple) Access, CDMA) system, Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, LTE frequency division dual Industrial (Frequency Division Duplex, FDD) system, LTE Time Division Duplex (TDD), Universal Mobile Telecommunication System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX) communications System or 5G system, etc.
  • GSM Global System of Mobile Communications
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • FDD Frequency Division Duplex
  • TDD Time Division Duplex
  • UMTS Universal Mobile Telecommunication System
  • WiMAX Worldwide Interoperability for Microwave Access
  • the communication system 100 applied in the embodiment of the present application is shown in FIG. 6.
  • the communication system 100 may include a network device 110, and the network device 110 may be a device that communicates with a terminal device 120 (or called a communication terminal or terminal).
  • the network device 110 may provide communication coverage for a specific geographic area, and may communicate with terminal devices located in the coverage area.
  • the network device 110 may be a base station (Base Transceiver Station, BTS) in a GSM system or a CDMA system, a base station (NodeB, NB) in a WCDMA system, or an evolved base station in an LTE system (Evolutional Node B, eNB or eNodeB), it can also be the base station (gNB) in the New Radio (NR)/5G system, or the radio control in the Cloud Radio Access Network (CRAN) Device, or the network device can be a mobile switching center, relay station, access point, vehicle-mounted device, wearable device, hub, switch, bridge, router, network side device in 5G network, or public land mobile network for future evolution ( Public Land Mobile Network (PLMN) network equipment, etc.
  • BTS Base Transceiver Station
  • NodeB, NB base station
  • gNB New Radio
  • CRAN Cloud Radio Access Network
  • the network device can be a mobile switching center, relay station, access point, vehicle-mounted device, wearable device, hub, switch,
  • the communication system 100 also includes at least one terminal device 120 located within the coverage area of the network device 110.
  • the "terminal equipment” used here includes but is not limited to connection via wired lines, such as via public switched telephone networks (PSTN), digital subscriber lines (Digital Subscriber Line, DSL), digital cables, and direct cable connections ; And/or another data connection/network; and/or via a wireless interface, such as for cellular networks, wireless local area networks (WLAN), digital TV networks such as DVB-H networks, satellite networks, AM- FM broadcast transmitter; and/or another terminal device that is set to receive/send communication signals; and/or Internet of Things (IoT) equipment.
  • a terminal device set to communicate through a wireless interface may be called a "wireless communication terminal", “wireless terminal” or "mobile terminal”.
  • Examples of mobile terminals include, but are not limited to, satellites or cellular phones; Personal Communications System (PCS) terminals that can combine cellular radio phones with data processing, fax, and data communication capabilities; can include radio phones, pagers, Internet/intranet PDA with internet access, web browser, memo pad, calendar, and/or Global Positioning System (GPS) receiver; and conventional laptop and/or palmtop receivers or others including radio phone transceivers Electronic device.
  • Terminal equipment can refer to access terminals, user equipment (UE), user units, user stations, mobile stations, mobile stations, remote stations, remote terminals, mobile equipment, user terminals, terminals, wireless communication equipment, user agents, or User device.
  • the access terminal can be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, a personal digital processing (Personal Digital Assistant, PDA), with wireless communication Functional handheld devices, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminal devices in 5G networks, or terminal devices in the future evolution of PLMN, etc.
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • direct terminal connection (Device to Device, D2D) communication may be performed between the terminal devices 120.
  • the 5G system or 5G network may also be referred to as NR system or NR network.
  • Figure 6 exemplarily shows one network device and two terminal devices.
  • the communication system 100 may include multiple network devices and the coverage of each network device may include other numbers of terminal devices. The embodiment does not limit this.
  • the communication system 100 may also include other network entities such as a network controller and a mobility management entity, which are not limited in the embodiment of the present application.
  • network entities such as a network controller and a mobility management entity, which are not limited in the embodiment of the present application.
  • the devices with communication functions in the network/system in the embodiments of the present application may be referred to as communication devices.
  • the communication device may include a network device 110 with communication functions and a terminal device 120.
  • the network device 110 and the terminal device 120 may be the specific devices described above, which will not be repeated here.
  • the communication device may also include other devices in the communication system 100, such as other network entities such as a network controller and a mobility management entity, which are not limited in this embodiment of the application.
  • the optional processing flow of the downlink data transmission method provided by the embodiment of the present invention, as shown in FIG. 7, includes the following steps:
  • Step S201 The terminal device determines the TCI state corresponding to the downlink data transmission based on the DCI.
  • the DCI is sent by a network device to a terminal device, and the DCI includes antenna port indication information and TCI status indication information; correspondingly, the terminal device is based on the antenna port indication information and TCI in the DCI
  • the status indication information determines the TCI status corresponding to the downlink data transmission.
  • the terminal device first determines the K TCI statuses corresponding to this scheduling based on the TCI status indication information in the DCI, and K is greater than 1, and then according to the DMRS port set to which the DMRS port belongs, from the K TCI status
  • the TCI status determines the TCI status corresponding to each DMRS port in each downlink data transmission in the time domain, and the DMRS port is indicated by the antenna port indication information in the DCI. In this way, simultaneous transmission of downlink data from multiple TRPs can reduce the number of repetitions in the time domain, thereby reducing system delay.
  • TRP 2 TRPs
  • the DMRS port set to which the DMRS port belongs is determined by the terminal device based on the DMRS CDM group corresponding to the DMRS port indicated by the port indication information in the DCI, and the correspondence between the DMRS CDM group and the DMRS port set The relationship is determined.
  • the port indication information in the DCI indicates that the DMRS port corresponds to 2 or 3 DMRS CDM groups, and the DMRS ports corresponding to different DMRS CDM groups belong to 2 DMRS port sets (DMRS port set 0 and DMRS port set). 1).
  • the relationship between the DMRS CDM group number and the DMRS port set 0 and the DMRS port set 1 may be determined by the terminal device according to a predetermined rule, or may be determined by the terminal device according to configuration signaling sent by the network device.
  • the relationship between the DMRS CDM group number and DMRS port set 0 and DMRS port set 1 includes at least one of the following:
  • the DMRS port corresponding to DMRS CDM group 0 corresponds to DMRS port set 0, and the DMRS port corresponding to DMRS CDM group 1 corresponds to DMRS port set 1; or the DMRS port corresponding to DMRS CDM group 0 corresponds to DMRS port set 1, and the DMRS port corresponding to DMRS CDM group 1 corresponds to DMRS port set 0. It can be understood that the larger number of the DMRS CDM group corresponds to the larger number of the DMRS port combination; or the larger number of the DMRS CDM group corresponds to the smaller number of the DMRS port combination.
  • DMRS ports of DMRS CDM group 0 and DMRS CDM group 2 correspond to DMRS port set 0, and DMRS ports of DMRS CDM group 1 correspond to DMRS port set 1; or DMRS ports of DMRS CDM group 0 and DMRS CDM group 2 correspond to DMRS port set 1 , DMRS port of DMRS CDM group 1 corresponds to DMRS port group 0.
  • the DMRS port of DMRS CDM group 0 corresponds to DMRS port set 0
  • the DMRS port of DMRS CDM group 1 corresponds to DMRS port set 1
  • the DMRS port of DMRS CDM group 2 corresponds to DMRS port set 2.
  • the DMRS port set to which the DMRS port belongs is determined by the terminal device based on the first indication information sent by the network device. It can be understood that the network device sends the first indication information to the terminal device, and the terminal device determines the DMRS port set to which the DMRS port belongs according to the first indication information.
  • the terminal device when the first indication information is configured, the terminal device is based on the DMRS CDM group corresponding to the DMRS port indicated by the port indication information in the DCI, and the correspondence between the DMRS CDM group and the DMRS port set To determine the DMRS port set to which the DMRS port belongs. For example, use true or false to indicate whether the first indication information is configured (false is the default value, that is, when the first indication information is not configured, the default value is false), when the corresponding field of the information received by the terminal device is true
  • the DMRS port set to which the DMRS port belongs is determined based on the foregoing embodiment of the present invention.
  • the DMRS port set to which the DMRS port belongs is determined by the terminal device based on the first preset policy.
  • the first preset policy is: DMRS ports included in each DMRS port set.
  • DMRS port set 0 includes DMRS ports x1, x2, ...
  • DMRS port set 1 includes DMRS ports y1, y2, ...
  • DMRS port set 0 includes DMRS ports x1, x2, and DMRS port set 1 includes DMRS port y1 .
  • all DMRS ports belong to a DMRS port set; for example, when the corresponding field in the information received by the terminal device is not configured, it means that the first indication information is not configured. , The terminal device determines that all DMRS ports belong to a DMRS port set.
  • the value corresponding to the first indication information is the first value
  • all DMRS ports belong to one DMRS port set.
  • the first value can be flexibly set, for example, the first value is set to 1.
  • the DMRS to which the DMRS port indicated by the port indication information in the DCI belongs is determined based on a preset correspondence between a DMRS port and a DMRS port set or a preset strategy Port collection.
  • the second value can be flexibly set, for example, the second value is set to 0.
  • the DMRS port set to which the DMRS port belongs is determined by the terminal device based on the first indication information.
  • the first indication information indicates: DMRS ports included in each DMRS port set; for example, DMRS port set 0 includes DMRS ports x1, x2, ..., DMRS port set 1 includes DMRS ports y1, y2, ...; or DMRS Port set 0 includes DMRS ports x1 and x2, and DMRS port set 1 includes DMRS port y1; or DMRS port set 0 includes DMRS ports x1 and x2 (by default, other ports belong to DMRS port set 1).
  • the DMRS port set to which the DMRS port belongs is determined through the first indication information sent by the network device, which can improve the flexibility of configuring the TCI state corresponding to the downlink data transmission.
  • the DMRS port set to which the DMRS port belongs is determined above, and the following describes how the terminal device determines the TCI state corresponding to the DMRS port.
  • the network device Before the terminal device determines the TCI status corresponding to the DMRS port, the network device sends second indication information to the terminal device, and the terminal device determines the number of transmissions of the downlink data in the time domain based on the second indication information.
  • the second indication information is a physical downlink shared channel aggregation factor (PDSCH-AggregationFactor).
  • DMRS ports corresponding to different DMRS port sets correspond to different TCI states; each time downlink data is transmitted in the time domain, the TCI state corresponding to each DMRS port is constant. For example, the terminal device determines that the DMRS port corresponding to DMRS port set 0 corresponds to TCI state 0, and the DMRS port corresponding to DMRS port set 1 corresponds to TCI state 1. In the M transmissions in the time domain, the terminal device performs processing according to the corresponding relationship. Downlink data reception.
  • the terminal device determines the TCI state corresponding to each DMRS port in the downlink data transmission according to the second preset strategy based on the TCI state corresponding to the last downlink data transmission.
  • the second preset strategy includes at least one of the following: TCI state offset, TCI state cycle, and TCI state swapping.
  • the terminal device determines the TCI status corresponding to DMRS ports belonging to different DMRS port sets during the first downlink data transmission; for example, the DMRS port corresponding to DMRS port set 0 corresponds to TCI status 0, and the DMRS port corresponding to DMRS port set 1 Corresponds to TCI state 1; in the M transmissions in the time domain, the terminal device changes the corresponding relationship between the DMRS port and the TCI state according to the corresponding relationship in the previous transmission according to the second preset strategy, and according to this transmission Correspondence between time to carry out corresponding data reception.
  • TCI state 0 corresponds to TRP0 and DMRS port set 0
  • TCI state 1 corresponds to TRP1 and DMRS port set 1
  • TCI state 1 corresponds to TRP1 and DMRS port set 1.
  • the TCI state corresponding to the DMRS port in each downlink data transmission in the time domain is determined according to the third preset policy.
  • the third preset strategy includes at least one of the following: each downlink data transmission sequentially uses one TCI state in the TCI sequence formed by the K TCI states, and when the K TCI states are used up , The downlink data transmission repeats the sequence of using K TCI states; and selecting the same number of TCI states from the K TCI states as the number of times the downlink data is transmitted in the time domain, and each downlink data transmission sequence uses one TCI status.
  • the third preset strategy is to use one TCI state in the TCI sequence composed of the K TCI states in sequence for each downlink data transmission, and when the K TCI states are used up ,
  • the downlink data transmission repeats the sequence of using K TCI states; for example, K TCI states are used sequentially, and when the K TCI states are used up, they are used sequentially from the first TCI state.
  • the third preset strategy is to select the same number of TCI states from the K TCI states as the number of times the downlink data is transmitted in the time domain, and use one TCI state for each downlink data transmission sequence; for example, , Select the first M TCI states from K TCI states and use them sequentially.
  • the terminal device determines the corresponding TCI state diagram for each downlink data transmission according to the third preset strategy, as shown in Figure 10: the TCI state corresponding to the first downlink data transmission and the third downlink data transmission is 0, the corresponding TCI status of the second downlink data transmission and the fourth downlink data transmission is 1.
  • Step S202 Determine an RV value corresponding to downlink data transmission based on the DCI.
  • the terminal device determines the RV value corresponding to the downlink data transmission based on the antenna port indication information and/or the RV indication information in the DCI.
  • the TCI status corresponding to the DMRS port can be determined first, and then the RV value corresponding to the downlink data transmission is determined; when the TCI status corresponding to the DMRS port is determined first, the DMRS port set to which the DMRS port belongs has been obtained, so When determining the RV value corresponding to the downlink data transmission, only the RV indication information in the DCI needs to be determined.
  • the RV value corresponding to each downlink data transmission is determined based on the corresponding relationship between the RV value in the RV indication information in the DCI and the number of downlink data transmissions; in each downlink data transmission in the time domain, all The DMRS port corresponds to the same RV value. In this way, it is possible to reduce the processing flow for the terminal device to perform downlink data transmission.
  • the T DMRS port sets corresponding to one downlink data transmission in the time domain correspond to the same RV value; among them, there is no intersection between the T DMRS port sets.
  • the terminal device selects one of the Z correspondences according to the redundancy version indication information in the DCI indication to determine the RV value used in the nth transmission.
  • the Z types of correspondences may be Z types of correspondences between RV values specified in the protocol and M transmissions.
  • each row in Table 1 represents the corresponding relationship between the RV value and the M downlink data transmission relationship.
  • the redundant version indication information in the DCI indicator can determine which row to use.
  • X0, X1, X2, X3 and the redundant version indication information in the DCI can have values 0, 1, 2, and 3 in any combination.
  • FIG. 11 schematic diagram 1 of the relationship between the DMRS port set and the RV value provided by the embodiment of the present invention, as shown in FIG. 11, based on the redundancy version indication information in the DCI, the terminal device determines that the RV value used for the first downlink data transmission is 2.
  • the RV value used in the second downlink data transmission is 3, the RV value used in the third downlink data transmission is 1, and the RV value used in the fourth downlink data transmission is 0.
  • the redundant version indication information in the DCI is different, and the above-mentioned corresponding relationship is also different.
  • the terminal device selects the RV value corresponding to each DMRS port set to which the DMRS port belongs based on the RV indication information in the DCI; in each downlink data transmission in the time domain, the DMRS port to which the DMRS port belongs The RV value corresponding to the set is constant. In this way, the processing procedure for the terminal device to receive downlink data transmission can be simplified. For example, T DMRS port sets corresponding to one downlink data transmission in the time domain correspond to different RV values; when different downlink data transmissions in the time domain, the corresponding relationship between the T DMRS port sets and the RV value remains unchanged.
  • the terminal device selects one of the Z correspondences according to the redundancy version indication information in the DCI indication to determine the RV value corresponding to the t-th DMRS port.
  • each row in Table 2-1, Table 2-2, and Table 2-3 represents the correspondence between the RV value and the set of T DMRS ports, indicated by DCI
  • the second schematic diagram of the relationship between the DMRS port set and the RV value provided by the embodiment of the present invention in the first downlink data transmission, the RV value corresponding to the DMRS port set 0 is 0, and the DMRS port set 1 The corresponding RV value is 2; then in the second, third, and fourth downlink data transmissions, the RV value corresponding to DMRS port set 0 is 0, and the RV value corresponding to DMRS port set 1 is 2.
  • the terminal device selects the RV value corresponding to each DMRS port set to which the DMRS port belongs in the last downlink data transmission in the time domain based on the RV indication information in the DCI, and the DMRS port is determined by the The antenna port indication information in the DCI indicates; based on the RV value corresponding to each set of DMRS ports in the one downlink data transmission, according to the fourth preset strategy, determine the one or more subsequent downlink data transmissions in.
  • the fourth preset strategy includes at least one of the following: value offset of the RV value, position offset in the RV value sequence, and RV value exchange. In this way, better downlink data transmission performance can be obtained, different RV values are used for different downlink data transmissions, and coding gain can be fully utilized.
  • T DMRS port sets corresponding to one downlink data transmission in the time domain correspond to different RV values; for different downlink data transmissions in the time domain, the RV value corresponding to the DMRS port set corresponds to the previous downlink data transmission.
  • the value of RV is determined according to the fourth preset strategy.
  • the terminal device selects one of the Z correspondences according to the redundancy version indication information in the DCI indication to determine the RV value corresponding to the t-th DMRS port during the first downlink data transmission ;
  • the Z correspondences may be the correspondences between the RV value specified in the protocol and the T DMRS port sets.
  • the fourth schematic diagram of the relationship between the DMRS port set and the RV value provided by the embodiment of the present invention is shown in FIG. 14.
  • the terminal device performs the first downlink data transmission
  • the RV value corresponding to the set of t DMRS ports is rv 1,t , and then according to the preset list (for example, 0,2,3,1) , the ⁇ , 2 ⁇ ... values after rv 0,t are selected for the second, ..., the RV value corresponding to the t-th DMRS port set in M transmissions.
  • the list (0,2,3,1) reaches the end, it recycles from the beginning.
  • the terminal device determines the RV value corresponding to each DMRS port set to which the DMRS port belongs in each downlink data transmission based on the RV indication information in the DCI.
  • the terminal device determines the RV value corresponding to each DMRS port set in each downlink data transmission based on the corresponding relationship between the downlink data transmission sequence and the DMRS port set and the RV value; for example, based on a specific sequence A sequence of RV values, a set of DMRS ports in one transmission corresponds to RV values adjacent to each other in the sequence of RV values, where adjacent locations include adjacent cyclic locations.
  • the RV value sequence is RV1, RV2, RV3...RVn
  • the RV value corresponding to DMRS port set 0 is RV1
  • the RV value corresponding to DMRS port set 1 is RV2
  • the RV value corresponding to DMRS port set 0 is RV3
  • the RV value corresponding to DMRS port set 1 is RV4
  • n is an even number
  • the RV value corresponding to port set 0 is RV1
  • the RV value corresponding to DMRS port set 1 is RV2
  • the RV value corresponding to DMRS port set 1 is RV2
  • the RV value of is RVn
  • the RV value corresponding to DMRS port set 1 is RV1.
  • the terminal equipment according to the first downlink data transmission corresponding to the T DMRS port set, the second downlink data transmission corresponding to the T DMRS port set, until the Mth transmission of the corresponding T DMRS port set
  • the sequence determines the RV corresponding to each DMRS port set during each time domain transmission.
  • the Z types of correspondence may be the correspondence between the RV value specified by the protocol and the T DMRS port sets and M transmissions.
  • the redundant version indication information in the DCI indication can determine which row to use To determine the RV value corresponding to the t-th DMRS port.
  • X0, X1, X2, X3 and the redundant version indication information in the DCI can have values 0, 1, 2, and 3 in any combination.
  • the value options of a are 0, +1, -1; the value options of b are 0, +1, -1.
  • the terminal device determines the RV value corresponding to each DMRS port set in each downlink data transmission based on the corresponding relationship between each DMRS port set and the RV value in M downlink data transmissions.
  • the terminal equipment according to the M downlink data transmissions corresponding to the first DMRS port set, M downlink data transmissions corresponding to the second DMRS port set, until the M time domain corresponding to the T-th DMRS port set
  • the transmission sequence determines the RV value corresponding to each DMRS port set during each time domain transmission; for example, based on a specific sequence of RV values, multiple transmissions of the same DMRS port set correspond to adjacent positions in the RV value sequence RV value of, where adjacent positions include adjacent circular positions.
  • the RV value sequence is RV1, RV2, RV3...RVn.
  • RV1 the RV value corresponding to DMRS port set 0 during the first downlink data transmission
  • RV2 the DMRS port set The RV value corresponding to 0
  • RVn the RV value corresponding to DMRS port set 0
  • RV1 the RV value corresponding to DMRS port set 0
  • the terminal device selects one of the above-mentioned Z correspondences to determine the RV value corresponding to the t-th DMRS port during the nth transmission in the time domain.
  • the Z types of correspondence may be the correspondence between the value of RV specified in the protocol, the set of T DMRS ports, and the amount of M transmissions.
  • the redundant version indication information in the DCI indication can determine which row to use To determine the RV value corresponding to the t-th DMRS port.
  • X0, X1, X2, X3 and the redundant version indication information in the DCI can have values 0, 1, 2, and 3 in any combination.
  • the value options of b can be 0, +1, -1.
  • the RV values corresponding to different DMRS port sets for each downlink data transmission are: in the first downlink data transmission, the RV value corresponding to DMRS port set 0 is 1, and the RV value corresponding to DMRS port set 1 is 2; the second downlink data transmission In data transmission, the RV value corresponding to DMRS port set 0 is 0, and the RV value corresponding to DMRS port set 1 is 3.
  • the terminal device determines the RV value corresponding to the first DMRS port set to which the DMRS port belongs in a downlink data transmission based on the RV indication information in the DCI; based on the RV value corresponding to the first DMRS port set The RV value determines the RV value corresponding to the DMRS port set other than the first DMRS port set to which the DMRS port belongs in the one downlink data transmission according to the fifth preset strategy.
  • the fifth preset strategy includes at least one of the following: RV values corresponding to the other DMRS port sets, and the RV values corresponding to the first DMRS port set are accumulated in the order of the third value and then taken Multiple values obtained by modulo; and the corresponding relationship between the RV value and the DMRS port set sequence.
  • the fifth preset strategy is that the RV value corresponding to the other DMRS port set is: the RV value corresponding to the first DMRS port set is accumulated in the order of the third value and then modulo multiple Value, the terminal device selects one of the above-mentioned Z correspondences according to the redundancy version indication information in the DCI indication to determine the RV value rv_n used in the nth transmission; wherein, the Z correspondence The relationship may be the corresponding relationship between the RV value specified in the protocol and M downlink data transmissions.
  • the terminal device determines the RV value corresponding to different DMRS port sets in the nth downlink data transmission according to the RV value rv_n used in the nth downlink data transmission; specifically, the terminal device uses the RV value in the nth downlink data transmission
  • the RV value of rv_n corresponds to DMRS port set 0, and then the ⁇ th value after rv_n is selected according to a prescribed list (for example, 0, 2, 3, 1) and used in DMRS port set 1,..., DMRS port set T in turn.
  • a prescribed list for example, 0, 2, 3, 1
  • the list (0,2,3,1) reaches the end, it recycles from the beginning.
  • each row in Table 5 identifies the corresponding relationship between the RV value and M downlink data transmissions.
  • the redundancy version indication information in the DCI indication can determine which row is used to determine the corresponding relationship in the nth transmission. RV value.
  • X0, X1, X2, X3 and the redundant version indication information in the DCI can have values 0, 1, 2, and 3 in any combination.
  • the terminal device obtains multiple RV information according to the sixth preset strategy based on the RV indication information in the DCI, and the terminal device selects one of the above-mentioned Z correspondences according to each RV information
  • the DMRS port is indicated by the antenna port indication information in the DCI
  • the Z correspondence may be the RV value specified by the protocol and M Correspondence between secondary downlink data transmissions.
  • the sixth preset strategy includes: the values of the multiple RV indication information are multiple values obtained by accumulating the values of the RV indication information in the DCI in the order of the fourth value and then taking the modulo.
  • the terminal device determines the RV information corresponding to each DMRS port set according to the sixth preset strategy according to the redundancy version indication information indicated in the DCI, and based on the RV information, determines that each DMRS port set is The corresponding RV value in the second downlink data transmission.
  • can be understood as an increase value at equal intervals.
  • the Z types of correspondence may be the correspondence between the RV value specified in the protocol and M downlink data transmissions.
  • each row in Table 6 represents the correspondence between RV and M downlink data transmissions.
  • the redundancy version indication information in the DCI indication can determine which row of correspondence to use to determine the nth downlink data.
  • X0, X1, X2, X3 and the redundant version indication information in the DCI can have values 0, 1, 2, and 3 in any combination.
  • the eighth diagram of the relationship between the DMRS port set and the RV value provided by the embodiment of the present invention, as shown in FIG. 18, taking ⁇ 2, the terminal device determines that in the first downlink data transmission, the RV value corresponding to the DMRS port set 0 is 2.
  • the RV value corresponding to DMRS port set 1 is 1; in the second downlink data transmission, the RV value corresponding to DMRS port set 0 is 3, and the RV value corresponding to DMRS port set 1 is 0; in the third downlink data transmission, DMRS
  • the RV value corresponding to port set 0 is 1, and the RV value corresponding to DMRS port set 1 is 2.
  • the RV value corresponding to DMRS port set 0 is 0, and the RV value corresponding to DMRS port set 1 is 3. .
  • the method further includes:
  • Step S203 The terminal device receives downlink data based on the TCI state and the RV value.
  • the downlink data transmission is any one of the following three types, or a combination of any two:
  • the downlink data transmission corresponds to PDSCH in multiple time slots, or multiple consecutive PDSCH transmission opportunities.
  • the downlink data transmission corresponds to multiple transmissions occupying different symbols in one time slot.
  • the downlink data transmission is multiple downlink data transmissions simultaneously transmitted, and different downlink data transmissions correspond to different TCI states.
  • the multiple downlink data transmissions are exactly the same channel-coded bit data; or, when there are multiple downlink data transmissions, the multiple downlink data transmissions are the same Data or different bits of data obtained after the same transport block (Transport Block, TB) is channel-encoded.
  • Transport Block Transport Block
  • the multiple downlink data transmissions correspond to the same hybrid automatic repeat request (Hybrid Automatic Repeat reQuest, HARQ) process.
  • Hybrid Automatic Repeat reQuest Hybrid Automatic Repeat reQuest
  • an embodiment of the present invention also provides a terminal device.
  • the composition structure of the terminal device is shown in FIG. 19, and the terminal device 300 includes:
  • the processing unit 301 is configured to determine a TCI state corresponding to downlink data transmission based on DCI; determine a redundancy version RV value corresponding to downlink data transmission based on the DCI; the TCI state and the RV value are used for the terminal device 300 Receive downlink data.
  • the processing unit 301 is configured to determine the TCI status corresponding to the downlink data transmission based on the antenna port indication information and the TCI status indication information in the DCI.
  • the processing unit 301 and the processing unit are configured to determine K TCI states based on the TCI state indication information in the DCI, and K is greater than 1; according to the DMRS port set to which the DMRS port belongs, from The K TCI states determine the TCI state corresponding to each DMRS port in each downlink data transmission in the time domain, and the DMRS port is indicated by the antenna port indication information in the DCI.
  • the DMRS port set to which the DMRS port belongs is determined based on the DMRS CDM group corresponding to the DMRS port indicated by the port indication information in the DCI, and the correspondence between the DMRS CDM group and the DMRS port set.
  • the corresponding relationship between the DMRS CDM group and the DMRS port set is preset by the terminal device, or sent to the terminal device by the network device through configuration signaling.
  • the processing unit 301 and the processing unit are configured to determine the DMRS port set to which the DMRS port belongs based on the first indication information sent by the network device.
  • the processing unit 301 is configured to determine that all DMRS ports belong to a DMRS port set when the value corresponding to the first indication information is the first value.
  • the processing unit 301 is configured to determine the port indication in the DCI based on the preset correspondence between the DMRS port and the DMRS port set when the value corresponding to the first indication information is the second value The DMRS port set to which the DMRS port indicated by the information belongs.
  • the first indication information indicates the DMRS ports included in each DMRS port set.
  • the processing unit 301 is configured such that when the first indication information is configured, the terminal device is based on the DMRS CDM group corresponding to the DMRS port indicated by the port indication information in the DCI, and The correspondence between the DMRS CDM group and the DMRS port set determines the DMRS port set to which the DMRS port belongs.
  • the corresponding relationship between the DMRS CDM group and the DMRS port set is preset by the terminal device, or is sent to the terminal device by the network device through configuration signaling.
  • the processing unit 301 is configured to determine the DMRS port set to which the DMRS port belongs based on a first preset policy when the first indication information is configured.
  • the processing unit 301 is configured to determine the DMRS port set to which the DMRS port belongs based on a first preset policy.
  • the processing unit 301 is further configured to determine the number of transmissions of the downlink data in the time domain based on the second indication information sent by the network device.
  • the second indication information is PDSCH-AggregationFactor.
  • the processing unit 301 is configured to determine that the DMRS ports to which different DMRS port sets belong correspond to different TCI states; each time downlink data is transmitted in the time domain, the TCI state corresponding to each DMRS port Constant.
  • the processing unit 301 is configured to determine the TCI state corresponding to each DMRS port in the downlink data transmission according to the second preset strategy based on the TCI state corresponding to the last downlink data transmission.
  • the second preset strategy includes at least one of the following: TCI state offset, TCI state cycle, and TCI state swapping.
  • the processing unit 301 is configured to determine the TCI state corresponding to the DMRS port in each downlink data transmission in the time domain when the number of DMRS port sets is 1, according to the third preset strategy.
  • the third preset strategy includes at least one of the following:
  • Each downlink data transmission sequentially uses one TCI state in the TCI sequence formed by the K TCI states, and when the K TCI states are used up, the downlink data transmission repeats the use sequence of the K TCI states;
  • the processing unit 301 is configured to determine the RV value corresponding to the downlink data transmission based on the antenna port indication information and/or the RV indication information in the DCI.
  • the processing unit 301 is configured to determine the RV value corresponding to each downlink data transmission based on the correspondence between the RV value in the RV indication information in the DCI and the number of downlink data transmissions;
  • the DMRS port corresponds to the same RV value, and the DMRS port is indicated by the antenna port indication information in the DCI.
  • the processing unit 301 is configured to select the RV value corresponding to each DMRS port set to which the DMRS port belongs based on the RV indication information in the DCI;
  • the RV value corresponding to the DMRS port set to which the DMRS port belongs is constant, and the DMRS port is indicated by the antenna port indication information in the DCI.
  • the processing unit 301 is configured to select the RV value corresponding to each DMRS port set to which the DMRS port belongs in the last downlink data transmission in the time domain based on the RV indication information in the DCI.
  • the DMRS port is indicated by the antenna port indication information in the DCI;
  • each DMRS port belongs to RV value corresponding to each DMRS port set.
  • the fourth preset strategy includes at least one of the following: value offset of the RV value, position offset in the RV value sequence, and RV value exchange.
  • the processing unit 301 is configured to determine the RV value corresponding to each DMRS port set to which the DMRS port belongs in each downlink data transmission based on the RV indication information in the DCI, and the DMRS port It is indicated by the antenna port indication information in the DCI.
  • the processing unit 301 is configured to determine the RV value corresponding to each DMRS port set in each downlink data transmission based on the corresponding relationship between the downlink data transmission order, the DMRS port set, and the RV value .
  • the processing unit 301 is configured to be based on a sequence of RV values in a specific order, and multiple downlink data transmissions of the same DMRS port set correspond to adjacent RV values in the RV value sequence. Adjacent includes adjacent loop positions.
  • the processing unit 301 is configured to determine the RV corresponding to each DMRS port set in each downlink data transmission based on the correspondence between each DMRS port set and the RV value in M downlink data transmissions. Value, M is greater than or equal to 1.
  • the processing unit 301 is configured to be based on a sequence of RV values in a specific order, and the set of DMRS ports in one transmission corresponds to the RV values that are adjacent in the RV value sequence, where adjacent positions include cycles The location is adjacent.
  • the processing unit 301 is configured to determine the RV value corresponding to the first DMRS port set to which the DMRS port belongs in a downlink data transmission based on the RV indication information in the DCI;
  • the fifth preset strategy includes at least one of the following:
  • the RV value corresponding to the other DMRS port set is multiple values obtained by accumulating the RV value corresponding to the first DMRS port set in the order of the third value and then taking the modulus; and the correspondence between the RV value and the order of the DMRS port set .
  • the processing unit 301 is configured to obtain multiple RV information according to the sixth preset strategy based on the RV indication information in the DCI, and each RV information is used to indicate the DMRS port in the downlink data transmission belongs to The RV value corresponding to a set of DMRS ports in, where the DMRS port is indicated by the antenna port indication information in the DCI.
  • the sixth preset strategy includes: the values of the multiple RV indication information are multiple values obtained by accumulating the values of the RV indication information in the DCI in the order of the fourth value and then taking the modulo.
  • the downlink data transmission is any one of the following three types, or a combination of any two:
  • the downlink data transmission corresponds to PDSCH in multiple time slots, or multiple consecutive PDSCH transmission opportunities.
  • the downlink data transmission corresponds to multiple transmissions occupying different symbols in one time slot.
  • the downlink data transmission is multiple downlink data transmissions simultaneously transmitted, and different downlink data transmissions correspond to different TCI states.
  • the multiple downlink data transmissions are exactly the same channel-coded bit data; or, when there are multiple downlink data transmissions, the multiple downlink data transmissions are the same Data or different bit data taken out after the same TB is channel-encoded.
  • the multiple downlink data transmissions correspond to the same HARQ process.
  • the terminal device 300 further includes a transceiver unit 302 configured to receive downlink data based on the TCI state and the RV value.
  • An embodiment of the invention also provides a terminal device, including a processor and a memory for storing a computer program that can run on the processor, where the processor is used to execute the downlink executed by the terminal device when the computer program is running. The steps of the data transfer method.
  • the terminal device 700 includes: at least one processor 701, a memory 702, and at least one network interface 704.
  • the various components in the terminal device 700 are coupled together through the bus system 705.
  • the bus system 705 is used to implement connection and communication between these components.
  • the bus system 705 also includes a power bus, a control bus, and a status signal bus.
  • various buses are marked as the bus system 705 in FIG. 20.
  • the memory 702 may be a volatile memory or a non-volatile memory, and may also include both volatile and non-volatile memory.
  • the non-volatile memory may be ROM, Programmable Read-Only Memory (PROM), Erasable Programmable Read-Only Memory (EPROM), and electrically erasable Programmable read-only memory (EEPROM, Electrically Erasable Programmable Read-Only Memory), magnetic random access memory (FRAM, ferromagnetic random access memory), flash memory (Flash Memory), magnetic surface memory, optical disk, or CD-ROM -ROM, Compact Disc Read-Only Memory); Magnetic surface memory can be disk storage or tape storage.
  • the volatile memory may be random access memory (RAM, Random Access Memory), which is used as an external cache.
  • RAM random access memory
  • SRAM Static Random Access Memory
  • SSRAM synchronous static random access memory
  • DRAM Dynamic Random Access Memory
  • SDRAM Synchronous Dynamic Random Access Memory
  • DDRSDRAM Double Data Rate Synchronous Dynamic Random Access Memory
  • ESDRAM enhanced -Type synchronous dynamic random access memory
  • SLDRAM SyncLink Dynamic Random Access Memory
  • direct memory bus random access memory DRRAM, Direct Rambus Random Access Memory
  • DRRAM Direct Rambus Random Access Memory
  • the memory 702 described in the embodiment of the present invention is intended to include, but is not limited to, these and any other suitable types of memory.
  • the memory 702 in the embodiment of the present invention is used to store various types of data to support the operation of the terminal device 700. Examples of these data include: any computer program used to operate on the terminal device 700, such as the application program 7022.
  • the program for implementing the method of the embodiment of the present invention may be included in the application program 7022.
  • the method disclosed in the foregoing embodiment of the present invention may be applied to the processor 701 or implemented by the processor 701.
  • the processor 701 may be an integrated circuit chip with signal processing capabilities. In the implementation process, the steps of the foregoing method can be completed by hardware integrated logic circuits in the processor 701 or instructions in the form of software.
  • the aforementioned processor 701 may be a general-purpose processor, a digital signal processor (DSP, Digital Signal Processor), or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc.
  • the processor 701 may implement or execute various methods, steps, and logical block diagrams disclosed in the embodiments of the present invention.
  • the general-purpose processor may be a microprocessor or any conventional processor.
  • the steps of the method disclosed in the embodiments of the present invention can be directly embodied as being executed and completed by a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor.
  • the software module may be located in a storage medium, and the storage medium is located in the memory 702.
  • the processor 701 reads the information in the memory 702 and completes the steps of the foregoing method in combination with its hardware.
  • the terminal device 700 may be configured by one or more application specific integrated circuits (ASIC, Application Specific Integrated Circuit), DSP, programmable logic device (PLD, Programmable Logic Device), and complex programmable logic device (CPLD). , Complex Programmable Logic Device), FPGA, general-purpose processor, controller, MCU, MPU, or other electronic components to implement the foregoing method.
  • ASIC Application Specific Integrated Circuit
  • DSP digital signal processor
  • PLD programmable logic device
  • CPLD complex programmable logic device
  • FPGA field-programmable logic device
  • controller MCU
  • MPU MPU
  • the embodiment of the present application also provides a computer-readable storage medium for storing computer programs.
  • the computer-readable storage medium can be applied to the terminal device in the embodiment of the present application, and the computer program causes the computer to execute the corresponding process implemented by the terminal device in each method of the embodiment of the present application.
  • the computer program causes the computer to execute the corresponding process implemented by the terminal device in each method of the embodiment of the present application.
  • These computer program instructions can also be stored in a computer-readable memory that can guide a computer or other programmable data processing equipment to work in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture including the instruction device.
  • the device implements the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.
  • These computer program instructions can also be loaded on a computer or other programmable data processing equipment, so that a series of operation steps are executed on the computer or other programmable equipment to produce computer-implemented processing, so as to execute on the computer or other programmable equipment.
  • the instructions provide steps for implementing functions specified in a flow or multiple flows in the flowchart and/or a block or multiple blocks in the block diagram.

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Abstract

本发明公开了一种下行数据传输方法,包括:终端设备基于下行控制信息(DCI),确定下行数据传输对应的传输配置指示(TCI)状态;基于所述DCI确定下行数据传输对应的冗余版本(RV)值;基于所述TCI状态和所述RV值接收下行数据。本发明实施例还提供一种终端设备及存储介质。

Description

一种下行数据传输方法、终端设备及存储介质 技术领域
本发明涉及无线通信技术领域,尤其涉及一种下行数据传输方法、终端设备及存储介质。
背景技术
在新无线(New Ration,NR)系统中,存在多个传输接收点(Transmission Reception Point,TRP)、或多个天线板(Antenna panels)、或多个波束(beam)同时给终端设备传输下行数据的场景。终端设备通过检测一个物理下行控制信道(Physical Downlink Control Channel,PDCCH),得到一个下行控制信息(Downlink Control Information,DCI),这个DCI指示多个TRP、或多个Antenna panels、或多个beam上同时传输数据的相关指示信息。相关技术中,下行数据传输包括在一个TRP在多个时隙(slot)上传输数据,通过多个TRP传输数据,以及通过多个TRP在多个slot上传输数据三种实现方式。但是,当下行数据传输方式发生切换或者混合使用时,如何进行下行数据传输目前尚无解决方案。
发明内容
为解决上述技术问题,本发明实施例提供一种下行数据传输方法、终端设备及存储介质,使得终端设备能够基于DCI实现不同的下行数据传输方式之间的切换或者不同的下行数据传输方式混合使用。
第一方面,本发明实施例提供一种下行数据传输方法,包括:终端设备基于下行控制信息,确定下行数据传输对应的传输配置指示(Transmission Configuration Indicator,TCI)状态;基于所述下行控制信息确定下行数据传输对应的冗余版本(Redundancy Version,RV)值;基于所述TCI状态和所述RV值接收下行数据。
第二方面,本发明实施例提供一种终端设备,所述终端设备包括:处理单元,配置为基于下行控制信息,确定下行数据传输对应的传输配置指示状态;基于所述下行控制信息确定下行数据传输对应的冗余版本值;收发单元,配置为基于所述传输配置指示状态和所述冗余版本值接收下行数据。
第三方面,本发明实施例提供一种终端设备,包括:处理器和用于存储能够在处理器上运行的计算机程序的存储器,其中,所述处理器用于运行所述计算机程序时,执行上述终端设备执行的下行数据传输方法的步骤。
第四方面,本发明实施例提供一种存储介质,存储有可执行程序,所述可执行程序被处理器执行时,实现上述终端设备执行的下行数据传输方法。
本发明实施例提供的下行数据传输方法,终端设备基于下行控制信息,确定下行数据传输对应的传输配置指示状态;基于所述下行控制信息确定下行数据传输对应的冗余版本值;基于所述传输配置指示状态和所述冗余版本值接收下行数据。如此,通过确定用于数据传输的冗余版本值和传输配置指示状态,实现了多TRP、或多Antenna panels、或多beam下行数据传输时,在多个时隙进行下行数据传输、采用不同的TRP进行下行 数据传输、以及在不同的时隙采用不同的TRP进行下行数据传输三种不同的下行数据传输方式之间的灵活切换或不同的下行数据传输方式混合使用;并且,通过多种不同的方式确定传输配置指示状态和冗余版本值,能够降低终端设备接收下行传输数据的复杂度、减少信令开销、获得更佳的分集效果、降低时延。
附图说明
图1为本发明一种下行数据传输方式示意图;
图2为本发明另一种下行数据传输方式示意图;
图3为本发明多个TRP同时传输数据的结构示意图;
图4为本发明多个beam同时传输数据的结构示意图;
图5为本发明TCI状态的配置方法示意图;
图6为本发明实施例通信系统的组成结构示意图;
图7为本发明实施例提供的下行数据传输方法的可选处理流程示意图;
图8为本发明实施例提供的TCI状态示意图一;
图9为本发明实施例提供的TCI状态示意图二;
图10为本发明实施例终端设备根据第三预设策略确定每次下行数据传输时对应的TCI状态示意图;
图11为本发明实施例提供的DMRS端口集合与RV值的关系示意图一;
图12为本发明实施例提供的DMRS端口集合与RV值的关系示意图二;
图13为本发明实施例提供的DMRS端口集合与RV值的关系示意图三;
图14为本发明实施例提供的DMRS端口集合与RV值的关系示意图四;
图15为本发明实施例提供的DMRS端口集合与RV值的关系示意图五;
图16为本发明实施例提供的DMRS端口集合与RV值的关系示意图六;
图17为本发明实施例提供的DMRS端口集合与RV值的关系示意图七;
图18为本发明实施例提供的DMRS端口集合与RV值的关系示意图八;
图19为本发明实施例提供的终端设备的组成结构示意图;
图20为本发明实施例提供的终端设备的硬件组成结构示意图。
具体实施方式
为了能够更加详尽地了解本发明实施例的特点和技术内容,下面结合附图对本发明实施例的实现进行详细阐述,所附附图仅供参考说明之用,并非用来限定本发明实施例。
在对本发明实施例进行详细说明之前,先对下行数据传输相关内容进行简要说明。
在NR系统中,可以采用如图1所示一种下行数据传输方式,通过一个TRP在多个时隙(slot)上传输数据;也可以采用如图2所示的另一种下行数据传输方式,在多个TRP上传输;还可以通过多个TRP在多个slot上传输数据。其中,多个TRP同时传输数据的结构示意图,如图3所示,网络设备通过TRP1和TPR2同时与终端设备传输数据;多个beam同时传输数据的结构示意图,如图4所示,网络设备通过beam1和beam2与终端设备传输数据。其中,多个TRP、或多个Antenna panel、或多个beam上同时传输数据的可选方案,除了上述终端设备通过检测一个PDCCH得到指示多个TRP、或多个Antenna panel、或多个beam上同时传输数据的一个DCI以外,还包括:终端设备接收来自不同TRP、或Antenna panels、或beam上的不同的PDCCH,在每个PDCCH上检测得到对应DCI,每个DCI指示一个对应的数据传输方式的相关指示信息。
针对终端设备通过检测一个PDCCH得到指示多个TRP、或多个Antenna panel、或 多个beam上同时传输数据的一个DCI的场景,终端设备只需要检测一个PDCCH,因此控制信道检测复杂度低,但是需要在不同的Antenna panel/TRP/beam之间能够快速交互信息。
针对终端设备接收来自不同TRP、或Antenna panel、或beam上的不同的PDCCH,在每个PDCCH上检测得到对应DCI的场景,终端设备需要在同一个载波上同时去检测多个PDCCH,检测的复杂度增加,但是会改善灵活性和鲁棒性。
终端设备接收来自不同TRP、或Antenna panel、或beam上的不同的PDCCH,在每个PDCCH上检测得到对应DCI的场景至少包括下述:
1、多个TRP属于同一个小区,TRP之间的连接(backhaul)是理想的(即可以快速进行信息交互,动态信息交互)。
2、多个TRP属于同一个小区,TRP之间的backhaul是非理想的(即TRP之间无法快速交互信息,只能进行相对较慢的数据交互)。
3、多个TRP属于不同的小区,TRP之间的backhaul是理想的。
4、多个TRP属于不同的小区,TRP之间的backhaul是非理想的。
5、多个beam/Antenna panel属于同一个小区,beam/Antenna panel之间的backhaul是理想的(即可以快速进行信息交互,动态信息交互)。
6、多个beam/Antenna panel属于同一个小区,beam/Antenna panel之间的backhaul是非理想的(即TRP之间无法快速交互信息,只能进行相对较慢的数据交互)。
7、多个beam/Antenna panel属于不同的小区,beam/Antenna panel之间的backhaul是理想的。
8、多个beam/Antenna panel属于不同的小区,beam/Antenna panel之间的backhaul是非理想的。
下面再对下行数据传输的准共址(Quasi Co-Loacted,QCL)指示进行简要说明。
终端设备在进行数据接收时,为了提高接收性能,可以利用数据传输所对应的传输环境的特性来改进接收算法。例如可以利用信道的统计特性来优化信道估计器的设计和参数。在NR系统中,数据传输所对应的这些特性通过QCL状态(QCL-Info)来表示。
下行传输如果来自不同的TRP/Antenna panel/beam,则数据传输所对应的传输环境的特性可能也会有变化;因此,在NR系统中网络设备在传输下行控制信道或数据信道时,会通过传输配置指示(Transmission Configuration Indicator,TCI)状态将对应的QCL-Info状态信息指示给终端。一个TCI状态可以包含:用于标识一个TCI状态的TCI状态ID和QCL信息1;可选地,一个TCI状态还可以包含QCL信息2。其中,一个QCL信息又包含如下信息:
1)QCL类型配置,所述QCL类型配置可以是QCL type A,QCL typeB,QCL typeC或QCL typeD中的一个;
2)QCL参考信号配置,QCL参考信号配置包括:参考信号所在的小区标识(identification,ID)、带宽部分(BandWidth Part,BWP)ID以及参考信号的标识;其中,所述参考信号的标识可以是信道状态信息参考信号(Channel State Information-Reference Signal,CSI-RS)资源ID或同步信号块(Synchronization Signal Block,SSB)索引。
其中,如果QCL信息1和QCL信息2都配置了至少一个QCL信息的QCL类型必须为typeA、typeB和typeC中的一个;如果还要配置另一个QCL信息,则另一个QCL信息的QCL类型必须为QCL type D。不同QCL类型配置的定义如下:
'QCL-TypeA':{Doppler shift,Doppler spread,average delay,delay spread}
'QCL-TypeB':{Doppler shift,Doppler spread}
'QCL-TypeC':{Doppler shift,average delay}
'QCL-TypeD':{Spatial Rx parameter}
现有协议38.331中相关配置如下:
Figure PCTCN2019080256-appb-000001
下面再对TCI状态进行简要说明。
在NR系统中,网络设备可以为下行信号或下行信道指示相应的TCI状态。如果网络设备通过TCI状态配置目标下行信道或目标下行信号的QCL参考信号为参考SSB或参考CSI-RS资源,且QCL类型配置为typeA,typeB或typeC;则终端设备可以假设所述目标下行信号与所述参考SSB或参考CSI-RS资源的大尺度参数是相同的,所述大尺度参数通过QCL类型配置来确定。类似的,如果网络设备通过TCI状态配置目标下行信道或下行信号的QCL参考信号为参考SSB或参考CSI-RS资源,且QCL类型配置为typeD,则终端设备可以采用与接收所述参考SSB或参考CSI-RS资源相同的接收波束(即Spatial Rx parameter),来接收所述目标下行信号。通常目标下行信道(或目标下行信号)与其参考SSB或参考CSI-RS资源在网络设备侧由同一个TRP或者同一个Antenna panel或者相同的波束来发送。如果两个下行信号或下行信道的传输TRP或传输Antenna panel或发送beam不同,通常会配置不同的TCI状态。
对于下行控制信道,TCI状态可以通过无线接入控制(Radio Resource Control,RRC)信令或者RRC信令和媒体接入控制(Media Access Control,MAC)信令结合的方式来指示。对于下行数据信道,TCI状态的配置方法,如图5所示,可用的TCI状态集合通过RRC信令来指示,并通过MAC信令来激活其中部分TCI状态,最后通过DCI中的TCI状态指示域从激活的TCI状态中指示一个或两个TCI状态,用于所述DCI调度的PDSCH。
下面针对解调参考信号(Demodulation Reference Sgnal,DMRS)进行简要说明。在NR中,存在两类DMRS:
1、Type 1DMRS,Type 1DMRS具有如下属性:
a.支持2个码分多路复用(Code Division Multiplexing,CDM)组(group);
b.如果占用1个正交频分复用(Orthogonal Frequency Division Multiplexing,OFDM)符号,最多支持4个DMRS端口;其中端口{0,1}属于CDM group 0,端口{2,3}属于CDM  group 1;
c.如果占用2个OFDM符号,最多支持8个DMRS端口,其中端口{0,1,4,5}属于CDM group 0,端口{2,3,6,7}属于CDM group 1。
2、Type 2DMRS,Type 2DMRS具有如下属性:
a.支持3个CDM group;
b.如果占用1个OFDM符号,最多支持6个DMRS端口;其中端口{0,1}属于CDM group 0,端口{2,3}属于CDM group 1,端口{4,5}属于CDM group 2;
c.如果占用2个OFDM符号,最多支持12个DMRS端口,其中端口{0,1,6,7}属于CDM group 0,端口{2,3,8,9}属于CDM group 1,端口{4,5,10,11}属于CDM group 2。
当传输下行数据时,网络设备会指示终端设备本次传输使用了哪些端口。如果数据从不同的TRP/Antenna panel/beam发出,则相同CDM group中的端口会从一个TRP/panel/beam发出来;因此其对应的特性会类似('QCL-TypeA','QCL-TypeB','QCL-TypeC','QCL-TypeD');相应的,可以对应相同的TCI状态。而不同的CDM group有可能从不同的TRP/Antenna panel/beam发出来,可以对应不同的TCI状态。
本发明实施例中下行数据传输方法可以应用于多次下行数据传输;如为了提高PDSCH的传输可靠性进行PDSCH的重复传输,即携带相同数据的PDSCH通过不同的时隙/TRP/Antenna panel/beam/冗余版本(Redundancy Version,RV)等多次传输,从而获得分集增益,降低误检概率(BLER)。
本发明提供一种下行数据传输方法,本申请实施例的下行数据传输可以应用于各种通信系统,例如:全球移动通讯(Global System of Mobile communication,GSM)系统、码分多址(Code Division Multiple Access,CDMA)系统、宽带码分多址(Wideband Code Division Multiple Access,WCDMA)系统、通用分组无线业务(General Packet Radio Service,GPRS)、长期演进(Long Term Evolution,LTE)系统、LTE频分双工(Frequency Division Duplex,FDD)系统、LTE时分双工(Time Division Duplex,TDD)、通用移动通信系统(Universal Mobile Telecommunication System,UMTS)、全球互联微波接入(Worldwide Interoperability for Microwave Access,WiMAX)通信系统或5G系统等。
示例性的,本申请实施例应用的通信系统100如图6所示。该通信系统100可以包括网络设备110,网络设备110可以是与终端设备120(或称为通信终端、终端)通信的设备。网络设备110可以为特定的地理区域提供通信覆盖,并且可以与位于该覆盖区域内的终端设备进行通信。可选地,该网络设备110可以是GSM系统或CDMA系统中的基站(Base Transceiver Station,BTS),也可以是WCDMA系统中的基站(NodeB,NB),还可以是LTE系统中的演进型基站(Evolutional Node B,eNB或eNodeB),还可以是新无线(New Radio,NR)/5G系统中的基站(gNB),或者是云无线接入网络(Cloud Radio Access Network,CRAN)中的无线控制器,或者该网络设备可以为移动交换中心、中继站、接入点、车载设备、可穿戴设备、集线器、交换机、网桥、路由器、5G网络中的网络侧设备或者未来演进的公共陆地移动网络(Public Land Mobile Network,PLMN)中的网络设备等。
该通信系统100还包括位于网络设备110覆盖范围内的至少一个终端设备120。作为在此使用的“终端设备”包括但不限于经由有线线路连接,如经由公共交换电话网络(Public Switched Telephone Networks,PSTN)、数字用户线路(Digital Subscriber Line,DSL)、数字电缆、直接电缆连接;和/或另一数据连接/网络;和/或经由无线接口,如,针对蜂窝网络、无线局域网(Wireless Local Area Network,WLAN)、诸如DVB-H网络的数字电视网络、卫星网络、AM-FM广播发送器;和/或另一终端设备的被设置成接收/发送通信信号的装置;和/或物联网(Internet of Things,IoT)设备。被设置成通过无线 接口通信的终端设备可以被称为“无线通信终端”、“无线终端”或“移动终端”。移动终端的示例包括但不限于卫星或蜂窝电话;可以组合蜂窝无线电电话与数据处理、传真以及数据通信能力的个人通信系统(Personal Communications System,PCS)终端;可以包括无线电电话、寻呼机、因特网/内联网接入、Web浏览器、记事簿、日历以及/或全球定位系统(Global Positioning System,GPS)接收器的PDA;以及常规膝上型和/或掌上型接收器或包括无线电电话收发器的其它电子装置。终端设备可以指接入终端、用户设备(User Equipment,UE)、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置。接入终端可以是蜂窝电话、无绳电话、会话启动协议(Session Initiation Protocol,SIP)电话、无线本地环路(Wireless Local Loop,WLL)站、个人数字处理(Personal Digital Assistant,PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备、5G网络中的终端设备或者未来演进的PLMN中的终端设备等。
可选地,终端设备120之间可以进行终端直连(Device to Device,D2D)通信。
可选地,5G系统或5G网络还可以称为NR系统或NR网络。
图6示例性地示出了一个网络设备和两个终端设备,可选地,该通信系统100可以包括多个网络设备并且每个网络设备的覆盖范围内可以包括其它数量的终端设备,本申请实施例对此不做限定。
可选地,该通信系统100还可以包括网络控制器、移动管理实体等其他网络实体,本申请实施例对此不作限定。
应理解,本申请实施例中网络/系统中具有通信功能的设备可称为通信设备。以图6示出的通信系统100为例,通信设备可包括具有通信功能的网络设备110和终端设备120,网络设备110和终端设备120可以为上文所述的具体设备,此处不再赘述;通信设备还可包括通信系统100中的其他设备,例如网络控制器、移动管理实体等其他网络实体,本申请实施例中对此不做限定。
本发明实施例提供的下行数据传输方法的可选处理流程,如图7所示,包括以下步骤:
步骤S201,终端设备基于DCI确定下行数据传输对应的TCI状态。
本发明实施例中,所述DCI由网络设备发送至终端设备,所述DCI包括天线端口指示信息和TCI状态指示信息;相应的,所述终端设备基于所述DCI中的天线端口指示信息和TCI状态指示信息,确定下行数据传输对应的TCI状态。
在具体实施时,终端设备首先基于所述DCI中的TCI状态指示信息,确定本次调度所对应的K个TCI状态,K大于1;再根据DMRS端口所属的DMRS端口集合,从所述K个TCI状态中确定时域上每次下行数据传输中,每个DMRS端口对应的TCI状态,所述DMRS端口由所述DCI中的天线端口指示信息指示。如此,同时从多个TRP上传输下行数据,能够降低在时域上的重复次数,进而降低系统时延。
下面以2个TRP(N TRP=2),下行数据传输在时域上的传输次数M=4,TCI状态的数量K=2,DMRS端口集合的数量T=1或2为例(部分额外说明的情况下T=3),说明如何确定DMRS端口所属的DMRS端口集合。
在一些实施例中,所述DMRS端口所属的DMRS端口集合,由终端设备基于所述DCI中的端口指示信息所指示的DMRS端口所对应的DMRS CDM组,以及DMRS CDM组与DMRS端口集合的对应关系确定。举例来说,所述DCI中的端口指示信息指示DMRS端口对应2个或3个DMRS CDM group,不同的DMRS CDM group对应的DMRS端口分别属于2个DMRS端口集合(DMRS端口集合0和DMRS端口集合1)。其中, DMRS CDM group编号与DMRS端口集合0和DMRS端口集合1的关系可以是终端设备根据预先规则确定,也可以是终端设备根据网络设备发送的配置信令确定。可选地,DMRS CDM group编号与DMRS端口集合0和DMRS端口集合1的关系至少包括下述中的一项:
1、DMRS CDM group0对应的DMRS端口对应DMRS端口集合0,DMRS CDM group1对应的DMRS端口对应DMRS端口集合1;或者DMRS CDM group0对应的DMRS端口对应DMRS端口集合1,DMRS CDM group1对应的DMRS端口对应DMRS端口集合0。可以理解为DMRS CDM group的编号较大者,对应DMRS端口结合的编号较大者;或者DMRS CDM group的编号较大者,对应DMRS端口结合的编号较小者。
2、DMRS CDM group 0和DMRS CDM group 2的DMRS端口对应DMRS端口集合0,DMRS CDM group 1的DMRS端口对应DMRS端口集合1;或者DMRS CDM group0和DMRS CDM group 2的DMRS端口对应DMRS端口集合1,DMRS CDM group 1的DMRS端口对应DMRS端口集合0。
3、DMRS CDM group 0的DMRS端口对应DMRS端口集合0,DMRS CDM group1的DMRS端口对应DMRS端口集合1,DMRS CDM group 2的DMRS端口对应DMRS端口集合2。
在另一些实施例中,所述DMRS端口所属的DMRS端口集合,由所述终端设备基于网络设备发送的第一指示信息确定。可以理解为,网络设备向终端设备发送第一指示信息,终端设备根据所述第一指示信息确定所述DMRS端口所属的DMRS端口集合。
在具体实施时,当第一指示信息被配置时,所述终端设备基于所述DCI中的端口指示信息所指示的DMRS端口所对应的DMRS CDM组,以及DMRS CDM组与DMRS端口集合的对应关系,确定所述DMRS端口所属的DMRS端口集合。举例来说,用true或false指示第一指示信息是否被配置(false是缺省值,即第一指示信息未被配置时,默认取值为false),当终端设备接收的信息对应域为true时,表征第一指示信息被配置,此时,基于本发明上述实施例确定DMRS端口所属的DMRS端口集合。
或者,当第一指示信息被配置时,所述DMRS端口所属的DMRS端口集合由所述终端设备基于第一预设策略确定。可选地,所述第一预设策略为:每个DMRS端口集合包括的DMRS端口。举例来说,DMRS端口集合0包括DMRS端口x1、x2、…,DMRS端口集合1包括DMRS端口y1、y2、…;或者DMRS端口集合0包括DMRS端口x1、x2,DMRS端口集合1包括DMRS端口y1。
或者,当第一指示信息未被配置时,所有DMRS端口属于一个DMRS端口集合;举例来说,当终端设备接收的信息中对应的域未配置时,表征第一指示信息未被配置,此时,终端设备确定所有DMRS端口属于一个DMRS端口集合。
或者,当第一指示信息对应的值为第一值时,全部DMRS端口属于一个DMRS端口集合。其中,所述第一值可灵活设置,如第一值设置为1。
或者,所述第一指示信息对应的值为第二值时,基于预先设定DMRS端口与DMRS端口集合对应关系或者预设策略,确定所述DCI中的端口指示信息指示的DMRS端口所属的DMRS端口集合。其中,所述第二值可灵活设置,如第二值设置为0。
或者,所述DMRS端口所属的DMRS端口集合由所述终端设备基于所述第一指示信息确定。所述第一指示信息指示:每个DMRS端口集合包括的DMRS端口;举例来说,DMRS端口集合0包括DMRS端口x1、x2、…,DMRS端口集合1包括DMRS端口y1、y2、…;或者DMRS端口集合0包括DMRS端口x1、x2,DMRS端口集合1包括DMRS端口y1;或者DMRS端口集合0包括DMRS端口x1、x2(默认其他端口属于DMRS端口集合1)。
本发明实施例中,通过网络设备发送的第一指示信息确定DMRS端口所属的DMRS端口集合,所述能够提高配置下行数据传输对应的TCI状态的灵活性。
前面确定了DMRS端口所属的DMRS端口集合,下面说明终端设备如何确定DMRS端口对应的TCI状态。
终端设备确定DMRS端口对应的TCI状态之前,网络设备向终端设备发送第二指示信息,终端设备基于第二指示信息确定所述下行数据在时域上的传输次数。可选地,第二指示信息为物理下行共享信道聚合因子(PDSCH-AggregationFactor)。
在一些实施例中,不同的DMRS端口集合所对应的DMRS端口对应不同的TCI状态;在时域上每次传输下行数据时,每个所述DMRS端口对应的TCI状态恒定。举例来说,终端设备确定DMRS端口集合0对应的DMRS端口对应TCI状态0,DMRS端口集合1对应的DMRS端口对应TCI状态1;在时域上的M次传输中,终端设备根据该对应关系进行下行数据接收。TCI状态示意图一,如图8所示的TCI状态示意图一,TCI状态0对应TRP0和DMRS端口集合0,TCI状态1对应TRP1和DMRS端口集合1;在M(M=4)次数据传输中,终端设备始终根据TCI状态0和DMRS端口集合0对应的DMRS端口的对应关系、以及始终根据TCI状态1和DMRS端口集合1对应的DMRS端口的对应关系来进行下行数据接收。如此,使得终端设备接收下行数据的处理流程更加简单。
在另一些实施例中,终端设备基于上一次下行数据传输所对应的TCI状态,按照第二预设策略确定下行数据传输中每个DMRS端口对应的TCI状态。其中,所述第二预设策略至少包括下述中的一种:TCI状态的偏移、TCI状态的循环和TCI状态的对换。举例来说,终端设备确定第一次下行数据传输时属于不同DMRS端口集合的DMRS端口对应的TCI状态;如DMRS端口集合0对应的DMRS端口对应到TCI状态0,DMRS端口集合1对应的DMRS端口对应到TCI状态1;在时域上的M次传输中,终端设备根据前一次传输中的对应关系,按照第二预设策略改变此次DMRS端口与TCI状态的对应关系,并依据此次传输时的对应关系来进行相应的数据接收。如此,通过一个DMRS端口集合不同次传输时,从不同的TRP发出来,相应的下行数据也是在不同次传输时,从不同的TRP发出来,能够获得更好的分集效果。如图9所示的TCI状态示意图二,当第1次下行数据传输和第3次下行数据传输时,TCI状态0对应TRP0和DMRS端口集合0,TCI状态1对应TRP1和DMRS端口集合1;当第2次下行数据传输和第4次下行数据传输时,TCI状态1对应TRP0和DMRS端口集合0,TCI状态0对应TRP1和DMRS端口集合1。
在又一些实施例中,当DMRS端口集合的数量为1时,按照第三预设策略确定时域上每次下行数据传输中所述DMRS端口对应的TCI状态。其中,所述第三预设策略至少包括下述中的一项:每次下行数据传输按序使用所述K个TCI状态构成的TCI序列中的一个TCI状态,当K个TCI状态使用完毕后,下行数据传输重复K个TCI状态的使用顺序;以及从所述K个TCI状态中选择与所述下行数据在时域上的传输次数相同数量的TCI状态,每次下行数据传输顺序使用一个TCI状态。如此,由于终端设备不需要在同一时间接收多个TRP发送的下行数据,使得终端设备接收下行数据的处理流程更简单。在具体实施时,若M大于或等于K,第三预设策略为每次下行数据传输按序使用所述K个TCI状态构成的TCI序列中的一个TCI状态,当K个TCI状态使用完毕后,下行数据传输重复K个TCI状态的使用顺序;例如,顺序使用K个TCI状态,当K个TCI状态使用完毕,从第一个TCI状态开始顺序使用。若M小于K,第三预设策略为从所述K个TCI状态中选择与所述下行数据在时域上的传输次数相同数量的TCI状态,每次下行数据传输顺序使用一个TCI状态;例如,从K个TCI状态中选择前M 个TCI状态顺序使用。或者在具体实施时,终端设备根据第三预设策略确定每次下行数据传输时对应的TCI状态示意图,如图10所示:第1次下行数据传输和第3次下行数据传输对应TCI状态为0,第2次下行数据传输和第4次下行数据传输对应TCI状态为1。
步骤S202,基于所述DCI确定下行数据传输对应的RV值。
可选地,终端设备基于所述DCI中的天线端口指示信息和/或RV指示信息,确定下行数据传输对应的RV值。在实施本发明实施例时,可以先确定DMRS端口对应的TCI状态,再确定下行数据传输对应的RV值;在先确定DMRS端口对应的TCI状态时,已经获得DMRS端口所属的DMRS端口集合,因此再确定下行数据传输对应的RV值时,仅需要根据DCI中的RV指示信息即可。也可以先确定下行数据传输对应的RV值,再确定DMRS端口对应的TCI状态;此时,在确定下行数据传输对应的RV值时,需要根据DCI中的天线端口指示信息和RV指示信息确定。
在一些实施例中,基于所述DCI中的RV指示信息中RV值与下行数据传输的次数的对应关系,确定每次下行数据传输对应的RV值;时域上每次下行数据传输中,所有DMRS端口对应于同一个RV值。如此,能够降低终端设备进行下行数据传输的处理流程。举例来说,时域上1次下行数据传输对应的T个DMRS端口集合对应同一个RV取值;其中,T个DMRS端口集合之间不存在交集。终端设备根据所述DCI指示中的所述冗余版本指示信息,根据Z种对应关系中选择一种来确定第n次传输中使用的RV取值。可选地,所述Z种对应关系可以是协议规定的RV取值与M次传输有Z种对应关系。如表1所示,根据NR协议,表1中每一行表征RV取值与M次下行数据传输关系的对应关系,通过DCI指示中的冗余版本指示信息可以确定使用哪一行的对应关系来确定第n次传输中使用的RV取值。其中,X0,X1,X2,X3与DCI中冗余版本指示信息取值0,1,2,3可以任意组合。一种典型组合是X0=0,X1=1,X2=2,X3=3。
Figure PCTCN2019080256-appb-000002
表1
作为一个示例,本发明实施例提供的DMRS端口集合与RV值的关系示意图一,如图11所示,基于DCI中冗余版本指示信息,终端设备确定第1次下行数据传输使用的RV值为2,第2次下行数据传输使用的RV值为3,第3次下行数据传输使用的RV值为1,第4次下行数据传输使用的RV值为0。DCI中冗余版本指示信息不同,上述对应关系也不同。
在另一些实施例中,终端设备基于所述DCI中的RV指示信息,选择DMRS端口所属的每个DMRS端口集合对应的RV值;时域上每次下行数据传输中,DMRS端口所属的DMRS端口集合对应的RV值恒定。如此,能够简化终端设备接收下行数据传输的处理流程。举例来说,时域上1次下行数据传输对应的T个DMRS端口集合对应不同的RV值;时域上不同次下行数据传输时,T个DMRS端口集合与RV值的对应关系不变。即第一次下行数据传输中,DMRS端口集合1对应的RV值为1,则每次下行数据传输中,DMRS端口集合1对应的RV值都为1。在具体实施时,终端设备根据所述DCI指示中的所述冗余版本指示信息,在Z种对应关系中选择一种来确定第t个DMRS端口对应的RV值。如表2所示,以T=2,Z=4为例,表2-1、表2-2以及表2-3中每一行表征RV值与T个DMRS端口集合的对应关系,通过DCI指示中所述冗余版本指示信息可以确定使用哪一行的对应关系来确定第t个DMRS端口对应的RV值;其中, X0,X1,X2,X3与DCI中冗余版本指示信息取值0,1,2,3可以任意组合。一种典型组合是X0=0,X1=1,X2=2,X3=3。
Figure PCTCN2019080256-appb-000003
表2-1
Figure PCTCN2019080256-appb-000004
表2-2
Figure PCTCN2019080256-appb-000005
表2-3
作为一个示例,本发明实施例提供的DMRS端口集合与RV值的关系示意图二,如图12所示,第1次下行数据传输中,DMRS端口集合0对应的RV值为0,DMRS端口集合1对应的RV值为2;则第2次、第3次以及第4次下行数据传输中,均是DMRS端口集合0对应的RV值为0,DMRS端口集合1对应的RV值为2。
在又一些实施例中,终端设备基于所述DCI中的RV指示信息选择时域上一次下行数据传输中,DMRS端口所属的每个DMRS端口集合分别对应的RV值,所述DMRS端口由所述DCI中的天线端口指示信息指示;基于所述一次下行数据传输中每个DMRS端口集合分别对应的RV值,按照第四预设策略确定所述一次下行数据传输后续一次或多次的下行数据传输中。其中,所述第四预设策略至少包括下述中的一项:RV值的取值偏移、RV值序列中的位置偏移和RV值对换。如此,能够获得更好的下行数据传输性能,不同次下行数据传输使用不同的RV值,能够充分的利用编码增益。举例来说,时域上1次下行数据传输对应的T个DMRS端口集合对应不同的RV值;时域上不同次下行数据传输时,DMRS端口集合对应的RV值,根据前一次下行数据传输对应的RV取值,按照第四预设策略确定。在具体实施时,终端设备根据所述DCI指示中的所述冗余版本指示信息,在Z种对应关系中选择一种来确定第1次下行数据传输时第t个DMRS端口对应的RV取值;其中,Z种对应关系可以是协议规定的RV取值与T个DMRS端口集合之间的对应关系。
本发明实施例提供的DMRS端口集合与RV值的关系示意图三,如图13所示,以第四策略时RV值的取值偏移为例,终端设备确定第n次下行数据传输中第t个DMRS端口集合对应的RV值rv n,t=rv (n-1),tt,其中rv (n-1),t是第n-1次传输中第t个DMRS端口集合对应的RV值,Δ t是正整数,表示RV值取值偏移,上述算法还包括取模操作,例如rv n,t=(rv (n-1),tt)mod 4。本发明实施例提供的DMRS端口集合与RV值的关系示意图四,如图14所示,以第四策略为RV值序列中的位置偏移为例,终端设备把第1次下行数据传输中第t个DMRS端口集合对应的RV取值rv 1,t,然后根据预设的列表(例如0,2,3,1)选取rv 0,t后面第Δ,2Δ…个值依次用于第2,…,M次传输中第t个DMRS 端口集合对应的RV取值。列表(0,2,3,1)到结尾时从头开始重新循环。
还有一些实施例中,终端设备基于所述DCI中的RV指示信息确定每次下行数据传输中,DMRS端口所属的每个DMRS端口集合分别对应的RV值。在具体实施时,终端设备基于所述下行数据传输的次序与DMRS端口集合、以及RV值的对应关系,确定每次下行数据传输中每个DMRS端口集合对应的RV值;如,基于一个特定顺序的RV值序列,一次传输中的DMRS端口集合对应所述RV值序列中位置相邻的RV值,其中位置相邻包括循环位置相邻。举例RV值序列为RV1、RV2、RV3…RVn,在第一次下行数据传输时,DMRS端口集合0对应的RV值为RV1,DMRS端口集合1对应的RV值为RV2;在第二次下行数据传输时,DMRS端口集合0对应的RV值为RV3,DMRS端口集合1对应的RV值为RV4;以此类推,当n为偶数时,第(n/2+1)次下行数据传输时,DMRS端口集合0对应的RV值为RV1,DMRS端口集合1对应的RV值为RV2;当n为奇数时,第((n-1)/2+1)次下行数据传输时,DMRS端口集合0对应的RV值为RVn,DMRS端口集合1对应的RV值为RV1。如此,能够有限获得多个TRP上的分集增益,并与不同RV的性能结合,提高下行数据传输的处理性能。举例来说,终端设备按照先第一次下行数据传输对应的T个DMRS端口集合,第二次下行数据传输对应的T个DMRS端口集合,直至第M次传输时对应的T个DMRS端口集合的顺序来确定每次时域传输时每个DMRS端口集合对应的RV。在具体实施时,终端设备根据所述DCI指示中的冗余版本指示信息,在Z种对应关系中选择一种来确定时域上第n(n=1,…,M)次传输时第t(t=0,1,…,T-1)个DMRS端口对应的RV取值。其中,所述Z种对应关系可以是协议规定的RV取值与T个DMRS端口集合以及M次传输的对应关系。如表3所示,以T=2,Z=4为例,表3中每一行表征RV值与T个DMRS端口集合的对应关系,通过DCI指示中的冗余版本指示信息可以确定使用哪一行的对应关系来确定第t个DMRS端口对应的RV取值。其中,X0,X1,X2,X3与DCI中冗余版本指示信息取值0,1,2,3可以任意组合。一种典型组合是X0=0,X1=1,X2=2,X3=3。a的取值选项为0,+1,-1;b的取值选项为0,+1,-1。
Figure PCTCN2019080256-appb-000006
表3
本发明实施例提供的DMRS端口集合与RV值的关系示意图五,如图15所示,以DCI中冗余版本指示信息指示表5中第一行对应关系,M=2,a=0,b=-1时,每次下行数据传输不同DMRS端口集合对应的RV取值分别为:第1次下行数据传输时,DMRS端口集合1对应的RV值为2,DMRS端口集合0对应的RV值为0;第2次下行数据传输时,DMRS端口集合1对应的RV值为1,DMRS端口集合0对应的RV值为3。
再一些实施例中,终端设备基于所述每个DMRS端口集合与M次下行数据传输中RV值的对应关系,确定每次下行数据传输中每个DMRS端口集合对应的RV值。在具体实施时,终端设备按照第一个DMRS端口集合对应的M次下行数据传输、第二个DMRS端口集合对应的M次下行数据传输,直至到第T个DMRS端口集合对应的M次时域传输顺序来确定每次时域传输时每个DMRS端口集合对应的RV值;如,基于一个特定顺序的RV值序列,同一个DMRS端口集合的多次传输对应所述RV值序列中位置相邻的RV值,其中位置相邻包括循环位置相邻。举例RV值序列为RV1、RV2、 RV3…RVn,对于DMRS端口集合0,在第一次下行数据传输时,DMRS端口集合0对应的RV值为RV1;第二次下行数据传输时,DMRS端口集合0对应的RV值为RV2,以此类推,第n次下行数据传输时,DMRS端口集合0对应的RV值为RVn;第n+1次下行数据传输时,DMRS端口集合0对应的RV值为RV1。如此,能够有限获得时间重复与不同RV的性能结合,提高下行数据传输的处理性能。举例来说,终端设备根据所述DCI指示中的冗余版本指示信息,在上述Z种对应关系中选择一种来确定时域上第n次传输时第t个DMRS端口对应的RV取值。其中,所述Z种对应关系可以是协议规定的RV取值与T个DMRS端口集合以及M次传输额对应关系。如表4所示,以T=2,Z=4为例,表4中每一行表征RV值与T个DMRS端口集合的对应关系,通过DCI指示中的冗余版本指示信息可以确定使用哪一行的对应关系来确定第t个DMRS端口对应的RV值。其中,X0,X1,X2,X3与DCI中冗余版本指示信息取值0,1,2,3可以任意组合。一种典型组合是X0=0,X1=1,X2=2,X3=3。b的取值选项可以为0,+1,-1。
Figure PCTCN2019080256-appb-000007
表4
本发明实施例提供的DMRS端口集合与RV值的关系示意图六,如图16所示,以DCI中冗余版本指示信息指示表4中第三行对应关系,M=2,b=0时,每次下行数据传输不同DMRS端口集合对应的RV值分别为:第1次下行数据传输中,DMRS端口集合0对应的RV值为1,DMRS端口集合1对应的RV值为2;第2次下行数据传输中,DMRS端口集合0对应的RV值为0,DMRS端口集合1对应的RV值为3。
在其他实施例中,所述终端设备基于所述DCI中的RV指示信息确定一次下行数据传输中,DMRS端口所属的第一DMRS端口集合对应的RV值;基于所述第一DMRS端口集合对应的RV值,按照第五预设策略确定所述一次下行数据传输中DMRS端口所属的除所述第一DMRS端口集合以外的其他DMRS端口集合对应的RV值。其中,所述第五预设策略至少包括下述中的一项:所述其他DMRS端口集合对应的RV值为,对所述第一DMRS端口集合对应的RV值以第三值顺序累加后取模得到的多个值;以及RV值与DMRS端口集合顺序的对应关系。在具体实施时,所述第五预设策略为所述其他DMRS端口集合对应的RV值为:对所述第一DMRS端口集合对应的RV值以第三值顺序累加后取模得到的多个值时,终端设备根据所述DCI指示中的所述冗余版本指示信息,在上述Z种对应关系中选择一种来确定第n次传输中使用的RV值rv_n;其中,所述Z种对应关系可以是协议规定的RV值与M次下行数据传输的对应关系。然后,终端设备根据第n次下行数据传输中使用的RV取值rv_n确定第n次下行数据传输中不同DMRS端口集合对应的RV取值;具体地,终端设备把第n次下行数据传输中使用的RV取值rv_n对应到DMRS端口集合0,然后根据一个规定的列表(例如0,2,3,1)选取rv_n后面第Δ个值依次用于DMRS端口集合1,…,DMRS端口集合T。列表(0,2,3,1)到结尾时从头开始重新循环。如表5所示,表5中每一行标识RV值与M次下行数据传输的对应关系,通过DCI指示中的冗余版本指示信息可以确定使用哪一行的对应关系来确定第n次传输中使用的RV值。其中,X0,X1,X2,X3与DCI中冗余版本指示信息取值0,1,2,3可以任意组合。一种典型组合是X0=0,X1=1,X2=2,X3=3。
Figure PCTCN2019080256-appb-000008
表5
本发明实施例提供的DMRS端口集合与RV值的关系示意图七,如图17所示,取Δ=1,即RV值之后第1个值用于下一个DMRS端口集合;终端设备确定第1次下行数据传输中,DMRS端口集合0对应的RV值为2,DMRS端口集合1对应的RV值为3;第2次下行数据传输中,DMRS端口集合0对应的RV值为3,DMRS端口集合1对应的RV值为2;第3次下行数据传输中,DMRS端口集合0对应的RV值为1,DMRS端口集合1对应的RV值为1;第4次下行数据传输中,DMRS端口集合0对应的RV值为0,DMRS端口集合1对应的RV值为0。
在另外的可选实施例中,终端设备基于所述DCI中的RV指示信息,按照第六预设策略获取多个RV信息,终端设备根据每个RV信息在上述Z种对应关系中选择一种来确定下行数据传输中DMRS端口所属的一个DMRS端口集合对应的RV值,所述DMRS端口由所述DCI中的天线端口指示信息指示,所述Z种对应关系可以是协议规定的RV值与M次下行数据传输之间的对应关系。其中,所述第六预设策略包括:所述多个RV指示信息的取值为,对所述DCI中的RV指示信息的取值以第四值顺序累加后取模得到的多个值。在具体实施时,终端设备根据DCI中指示的冗余版本指示信息,按照第六预设策略确定和每个DMRS端口集合对应的RV信息,基于所述RV信息,确定每个DMRS端口集合在每次下行数据传输中对应的RV取值。如此,由于RV取值的确定规则简单,便于终端设备进行下行数据传输处理。在具体实施时,首先,终端设备根据所述DCI指示中的冗余版本指示信息取值为I 0,根据第六预设策略得到更多的版本指示信息I 1,…,I T-1;其中,I t=Δ*t+I0(Δ为正整数);最后再对I t值进行取模处理。这里,Δ可以理解为等间隔增加值。然后,终端设备根据I t在上述Z种对应关系中选择一种来确定时域上第n(n=1,…,M)次传输时第t(t=0,1,…,T-1)个DMRS端口对应的RV值。其中,所述Z种对应关系可以是协议规定的RV值与M次下行数据传输之间的对应关系。
如表6所示,表6中每一行表征RV取与M次下行数据传输关系的对应关系,通过DCI指示中的冗余版本指示信息可以确定使用哪一行的对应关系来确定第n次下行数据传输中使用的RV取值。其中,X0,X1,X2,X3与DCI中冗余版本指示信息取值0,1,2,3可以任意组合。一种典型组合是X0=0,X1=1,X2=2,X3=3。
本发明实施例提供的DMRS端口集合与RV值的关系示意图八,如图18所示,取Δ=2,终端设备确定第1次下行数据传输中,DMRS端口集合0对应的RV值为2,DMRS端口集合1对应的RV值为1;第2次下行数据传输中,DMRS端口集合0对应的RV值为3,DMRS端口集合1对应的RV值为0;第3次下行数据传输中,DMRS端口集合0对应的RV值为1,DMRS端口集合1对应的RV值为2;第4次下行数据传输中,DMRS端口集合0对应的RV值为0,DMRS端口集合1对应的RV值为3。
在一些实施例中,所述方法还包括:
步骤S203,终端设备基于所述TCI状态和所述RV值接收下行数据。
需要说明的是,上述步骤S201和S202的执行顺序不做具体限定,即S202可以在S201之前执行,也可以两个步骤并行执行。
需要说明的是,本发明实施例中,所述下行数据传输为下述3种中的任意一种、或者任意两种的组合:
1、所述下行数据传输对应于多个时隙中的PDSCH,或者连续的多个PDSCH传输机会。
2、所述下行数据传输对应于一个时隙中占用不同符号的多次传输。
3、所述下行数据传输为同时传输的多个下行数据传输,且不同的下行数据传输对应不同的TCI状态。
当所述下行数据传输为多个时,所述多个下行数据传输为完全相同的信道编码后的比特数据;或者,所述下行数据传输为多个时,所述多个下行数据传输为相同数据或相同的传输块(Transport Block,TB)经信道编码后取出的不同比特数据。
当下行数据传输为多个时,所述多个下行数据传输对应相同的混合自动重传请求(Hybrid Automatic Repeat reQuest,HARQ)进程。
为实现上述下行数据传输方法,本发明实施例还提供一种终端设备,所述终端设备的组成结构,如图19所示,所述终端设备300包括:
处理单元301,配置为基于DCI,确定下行数据传输对应的TCI状态;基于所述DCI确定下行数据传输对应的冗余版本RV值;所述TCI状态和所述RV值用于所述终端设备300接收下行数据。
本发明实施例中,所述处理单元301,配置为基于所述DCI中的天线端口指示信息和TCI状态指示信息,确定下行数据传输对应的TCI状态。
本发明实施例中,所述处理单元301,所述处理单元,配置为基于所述DCI中的TCI状态指示信息,确定K个TCI状态,K大于1;根据DMRS端口所属的DMRS端口集合,从所述K个TCI状态中确定时域上每次下行数据传输中,每个DMRS端口对应的TCI状态,所述DMRS端口由所述DCI中的天线端口指示信息指示。其中,所述DMRS端口所属的DMRS端口集合,基于所述DCI中的端口指示信息所指示的DMRS端口所对应的DMRS CDM组,以及DMRS CDM组与DMRS端口集合的对应关系确定。所述DMRS CDM组与DMRS端口集合的对应关系由所述终端设备预先设定,或者由网络设备通过配置信令发送至所述终端设备。
本发明实施例中,所述处理单元301,所述处理单元,配置为基于网络设备发送的第一指示信息确定所述DMRS端口所属的DMRS端口集合。
本发明实施例中,所述处理单元301,配置为所述第一指示信息对应的值为第一值时,确定全部DMRS端口属于一个DMRS端口集合。
本发明实施例中,所述处理单元301,配置为所述第一指示信息对应的值为第二值时,基于预先设定DMRS端口与DMRS端口集合对应关系,确定所述DCI中的端口指示信息指示的DMRS端口所属的DMRS端口集合。
本发明实施例中,所述第一指示信息指示每个DMRS端口集合包括的DMRS端口。
本发明实施例中,所述处理单元301,配置为所述第一指示信息被配置时,所述终端设备基于所述DCI中的端口指示信息所指示的DMRS端口所对应的DMRS CDM组,以及DMRS CDM组与DMRS端口集合的对应关系,确定所述DMRS端口所属的DMRS端口集合。其中,所述DMRS CDM组与DMRS端口集合的对应关系由所述终端设备预先设定,或者由网络设备通过配置信令发送至所述终端设备。
本发明实施例中,所述处理单元301,配置为所述第一指示信息被配置时,基于第一预设策略确定所述DMRS端口所属的DMRS端口集合。
本发明实施例中,所述处理单元301,配置为基于第一预设策略确定所述DMRS端口所属的DMRS端口集合。
本发明实施例中,所述处理单元301,还配置为基于网络设备发送的第二指示信息确定所述下行数据在时域上的传输次数。所述第二指示信息为 PDSCH-AggregationFactor。
本发明实施例中,所述处理单元301,配置为确定不同DMRS端口集合所属的DMRS端口对应不同的TCI状态;在时域上每次传输下行数据时,每个所述DMRS端口对应的TCI状态恒定。
本发明实施例中,所述处理单元301,配置为基于上一次下行数据传输所对应的TCI状态,按照第二预设策略确定下行数据传输中每个DMRS端口对应的TCI状态。其中,所述第二预设策略至少包括下述中的一种:TCI状态的偏移、TCI状态的循环和TCI状态的对换。
本发明实施例中,所述处理单元301,配置为DMRS端口集合的数量为1时,按照第三预设策略确定时域上每次下行数据传输中所述DMRS端口对应的TCI状态。所述第三预设策略至少包括下述中的一项:
每次下行数据传输按序使用所述K个TCI状态构成的TCI序列中的一个TCI状态,当K个TCI状态使用完毕后,下行数据传输重复K个TCI状态的使用顺序;
从所述K个TCI状态中选择与所述下行数据在时域上的传输次数相同数量的TCI状态,每次下行数据传输顺序使用一个TCI状态。
本发明实施例中,所述处理单元301,配置为基于所述DCI中的天线端口指示信息和/或RV指示信息,确定下行数据传输对应的RV值。
本发明实施例中,所述处理单元301,配置为基于所述DCI中的RV指示信息中RV值与下行数据传输的次数的对应关系,确定每次下行数据传输对应的RV值;
时域上每次下行数据传输中,DMRS端口对应于同一个RV值,所述DMRS端口由所述DCI中的天线端口指示信息指示。
本发明实施例中,所述处理单元301,配置为基于所述DCI中的RV指示信息,选择DMRS端口所属的每个DMRS端口集合对应的RV值;
时域上每次下行数据传输中,DMRS端口所属的DMRS端口集合对应的RV值恒定,所述DMRS端口由所述DCI中的天线端口指示信息指示。
本发明实施例中,所述处理单元301,配置为基于所述DCI中的RV指示信息选择时域上一次下行数据传输中,DMRS端口所属的每个DMRS端口集合分别对应的RV值,所述DMRS端口由所述DCI中的天线端口指示信息指示;
基于所述一次下行数据传输中每个DMRS端口集合分别对应的RV值,按照第四预设策略确定所述一次下行数据传输后续一次或多次的下行数据传输中,所述DMRS端口所属的每个DMRS端口集合分别对应的RV值。所述第四预设策略至少包括下述中的一项:RV值的取值偏移、RV值序列中的位置偏移和RV值对换。
本发明实施例中,所述处理单元301,配置为基于所述DCI中的RV指示信息确定每次下行数据传输中,DMRS端口所属的每个DMRS端口集合分别对应的RV值,所述DMRS端口由所述DCI中的天线端口指示信息指示。
本发明实施例中,所述处理单元301,配置为基于所述下行数据传输的次序与DMRS端口集合、以及RV值的对应关系,确定每次下行数据传输中每个DMRS端口集合对应的RV值。
本发明实施例中,所述处理单元301,配置为基于一个特定顺序的RV值序列,同一个DMRS端口集合的多次下行数据传输对应所述RV值序列中位置相邻的RV值,其中位置相邻包括循环位置相邻。
本发明实施例中,所述处理单元301,配置为基于所述每个DMRS端口集合与M次下行数据传输中RV值的对应关系,确定每次下行数据传输中每个DMRS端口集合对应的RV值,M大于或等于1。
本发明实施例中,所述处理单元301,配置为基于一个特定顺序的RV值序列,一次传输中的DMRS端口集合对应所述RV值序列中位置相邻的RV值,其中位置相邻包括循环位置相邻。
本发明实施例中,所述处理单元301,配置为基于所述DCI中的RV指示信息确定一次下行数据传输中,DMRS端口所属的第一DMRS端口集合对应的RV值;
基于所述第一DMRS端口集合对应的RV值,按照第五预设策略确定所述一次下行数据传输中DMRS端口所属的除所述第一DMRS端口集合以外的其他DMRS端口集合对应的RV值,所述DMRS端口由所述DCI中的天线端口指示信息指示。所述第五预设策略至少包括下述中的一项:
所述其他DMRS端口集合对应的RV值为,对所述第一DMRS端口集合对应的RV值以第三值顺序累加后取模得到的多个值;以及RV值与DMRS端口集合顺序的对应关系。
本发明实施例中,所述处理单元301,配置为基于所述DCI中的RV指示信息,按照第六预设策略获取多个RV信息,每个RV信息用于指示下行数据传输中DMRS端口所属的一个DMRS端口集合对应的RV值,所述DMRS端口由所述DCI中的天线端口指示信息指示。所述第六预设策略包括:所述多个RV指示信息的取值为,对所述DCI中的RV指示信息的取值以第四值顺序累加后取模得到的多个值。
本发明实施例中,所述下行数据传输为下述3种中的任意一种、或者任意两种的组合:
1、所述下行数据传输对应于多个时隙中的PDSCH,或者连续的多个PDSCH传输机会。
2、所述下行数据传输对应于一个时隙中占用不同符号的多次传输。
3、所述下行数据传输为同时传输的多个下行数据传输,且不同的下行数据传输对应不同的TCI状态。
当所述下行数据传输为多个时,所述多个下行数据传输为完全相同的信道编码后的比特数据;或者,所述下行数据传输为多个时,所述多个下行数据传输为相同数据或相同的TB经信道编码后取出的不同比特数据。
当下行数据传输为多个时,所述多个下行数据传输对应相同的HARQ进程。
本发明实施例中,所述终端设备300还包括收发单元302,配置为基于所述TCI状态和所述RV值接收下行数据。
发明实施例还提供一种终端设备,包括处理器和用于存储能够在处理器上运行的计算机程序的存储器,其中,所述处理器用于运行所述计算机程序时,执行上述终端设备执行的下行数据传输方法的步骤。
图20是本发明实施例的终端设备的硬件组成结构示意图,终端设备700包括:至少一个处理器701、存储器702和至少一个网络接口704。终端设备700中的各个组件通过总线系统705耦合在一起。可理解,总线系统705用于实现这些组件之间的连接通信。总线系统705除包括数据总线之外,还包括电源总线、控制总线和状态信号总线。但是为了清楚说明起见,在图20中将各种总线都标为总线系统705。
可以理解,存储器702可以是易失性存储器或非易失性存储器,也可包括易失性和非易失性存储器两者。其中,非易失性存储器可以是ROM、可编程只读存储器(PROM,Programmable Read-Only Memory)、可擦除可编程只读存储器(EPROM,Erasable Programmable Read-Only Memory)、电可擦除可编程只读存储器(EEPROM,Electrically Erasable Programmable Read-Only Memory)、磁性随机存取存储器(FRAM,ferromagnetic random access memory)、快闪存储器(Flash Memory)、磁表面存储器、光盘、或只读 光盘(CD-ROM,Compact Disc Read-Only Memory);磁表面存储器可以是磁盘存储器或磁带存储器。易失性存储器可以是随机存取存储器(RAM,Random Access Memory),其用作外部高速缓存。通过示例性但不是限制性说明,许多形式的RAM可用,例如静态随机存取存储器(SRAM,Static Random Access Memory)、同步静态随机存取存储器(SSRAM,Synchronous Static Random Access Memory)、动态随机存取存储器(DRAM,Dynamic Random Access Memory)、同步动态随机存取存储器(SDRAM,Synchronous Dynamic Random Access Memory)、双倍数据速率同步动态随机存取存储器(DDRSDRAM,Double Data Rate Synchronous Dynamic Random Access Memory)、增强型同步动态随机存取存储器(ESDRAM,Enhanced Synchronous Dynamic Random Access Memory)、同步连接动态随机存取存储器(SLDRAM,SyncLink Dynamic Random Access Memory)、直接内存总线随机存取存储器(DRRAM,Direct Rambus Random Access Memory)。本发明实施例描述的存储器702旨在包括但不限于这些和任意其它适合类型的存储器。
本发明实施例中的存储器702用于存储各种类型的数据以支持终端设备700的操作。这些数据的示例包括:用于在终端设备700上操作的任何计算机程序,如应用程序7022。实现本发明实施例方法的程序可以包含在应用程序7022中。
上述本发明实施例揭示的方法可以应用于处理器701中,或者由处理器701实现。处理器701可能是一种集成电路芯片,具有信号的处理能力。在实现过程中,上述方法的各步骤可以通过处理器701中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器701可以是通用处理器、数字信号处理器(DSP,Digital Signal Processor),或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。处理器701可以实现或者执行本发明实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者任何常规的处理器等。结合本发明实施例所公开的方法的步骤,可以直接体现为硬件译码处理器执行完成,或者用译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于存储介质中,该存储介质位于存储器702,处理器701读取存储器702中的信息,结合其硬件完成前述方法的步骤。
在示例性实施例中,终端设备700可以被一个或多个应用专用集成电路(ASIC,Application Specific Integrated Circuit)、DSP、可编程逻辑器件(PLD,Programmable Logic Device)、复杂可编程逻辑器件(CPLD,Complex Programmable Logic Device)、FPGA、通用处理器、控制器、MCU、MPU、或其他电子元件实现,用于执行前述方法。
本申请实施例还提供了一种计算机可读存储介质,用于存储计算机程序。
可选地,该计算机可读存储介质可应用于本申请实施例中的终端设备,并且该计算机程序使得计算机执行本申请实施例的各个方法中由终端设备实现的相应流程,为了简洁,在此不再赘述。
本发明是参照根据本发明实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器,使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中,使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品,该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或 多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上,使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理,从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
以上所述,仅为本发明的较佳实施例而已,并非用于限定本发明的保护范围,凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等,均应包含在本发明的保护范围之内。

Claims (84)

  1. 一种下行数据传输方法,所述方法包括:
    终端设备基于下行控制信息DCI,确定下行数据传输对应的传输配置指示TCI状态;
    基于所述DCI确定下行数据传输对应的冗余版本RV值;
    所述TCI状态和所述RV值用于所述终端设备接收下行数据。
  2. 根据权利要求1所述的方法,其中,所述终端设备基于DCI确定下行数据传输对应的TCI状态,包括:
    所述终端设备基于所述DCI中的天线端口指示信息和TCI状态指示信息,确定下行数据传输对应的TCI状态。
  3. 根据权利要求1或2所述的方法,其中,所述终端设备基于DCI确定下行数据传输对应的TCI状态,包括:
    所述终端设备基于所述DCI中的TCI状态指示信息,确定K个TCI状态,K大于1;
    根据DMRS端口所属的DMRS端口集合,从所述K个TCI状态中确定时域上每次下行数据传输中,每个DMRS端口对应的TCI状态,所述DMRS端口由所述DCI中的天线端口指示信息指示。
  4. 根据权利要求3所述的方法,其中,所述DMRS端口所属的DMRS端口集合,基于所述DCI中的端口指示信息所指示的DMRS端口所对应的DMRS CDM组,以及DMRS CDM组与DMRS端口集合的对应关系确定。
  5. 根据权利要求4所述的方法,其中,所述DMRS CDM组与DMRS端口集合的对应关系由所述终端设备预先设定,或者由网络设备通过配置信令发送至所述终端设备。
  6. 根据权利要求3所述的方法,其中,所述DMRS端口所属的DMRS端口集合由所述终端设备基于网络设备发送的第一指示信息确定。
  7. 根据权利要求6所示的方法,其中,所述DMRS端口所属的DMRS端口集合由所述终端设备基于网络设备发送的第一指示信息确定,包括:
    所述第一指示信息对应的值为第一值时,全部DMRS端口属于一个DMRS端口集合。
  8. 根据权利要求6所述的方法,其中,所述DMRS端口所属的DMRS端口集合由所述终端设备基于网络设备发送的第一指示信息确定,包括:
    所述第一指示信息对应的值为第二值时,基于预先设定DMRS端口与DMRS端口集合对应关系,确定所述DCI中的端口指示信息指示的DMRS端口所属的DMRS端口集合。
  9. 根据权利要求6所示的方法,其中,所述第一指示信息指示每个DMRS端口集合包括的DMRS端口。
  10. 根据权利要求6所述的方法,其中,所述DMRS端口所属的DMRS端口集合由所述终端设备基于网络设备发送的第一指示信息确定,包括:
    所述第一指示信息被配置时,所述终端设备基于所述DCI中的端口指示信息所指示的DMRS端口所对应的DMRS CDM组,以及DMRS CDM组与DMRS端口集合的对应关系,确定所述DMRS端口所属的DMRS端口集合。
  11. 根据权利要求10所述的方法,其中,所述DMRS CDM组与DMRS端口集合 的对应关系由所述终端设备预先设定,或者由网络设备通过配置信令发送至所述终端设备。
  12. 根据权利要求6所述的方法,其中,所述DMRS端口所属的DMRS端口集合由所述终端设备基于网络设备发送的第一指示信息确定,包括:
    所述第一指示信息被配置时,所述DMRS端口所属的DMRS端口集合由所述终端设备基于第一预设策略确定。
  13. 根据权利要求3所述的方法,其中,所述DMRS端口所属的DMRS端口集合由所述终端设备基于第一预设策略确定。
  14. 根据权利要求1至13任一项所述的方法,其中,所述方法还包括:
    所述终端设备基于网络设备发送的第二指示信息确定所述下行数据在时域上的传输次数。
  15. 根据权利要求14所述的方法,其中,所述第二指示信息为物理下行共享信道聚合因子PDSCH-AggregationFactor。
  16. 根据权利要求3至15任一项所述的方法,其中,所述从所述K个TCI状态中确定时域上每次下行数据传输中,每个DMRS端口对应的TCI状态,包括:
    不同DMRS端口集合所属的DMRS端口对应不同的TCI状态;在时域上每次传输下行数据时,每个所述DMRS端口对应的TCI状态恒定。
  17. 根据权利要求3至15任一项所述的方法,其中,所述从所述K个TCI状态中确定时域上每次下行数据传输中,每个DMRS端口对应的TCI状态,包括:
    基于上一次下行数据传输所对应的TCI状态,按照第二预设策略确定下行数据传输中每个DMRS端口对应的TCI状态。
  18. 根据权利要求17所述的方法,其中,所述第二预设策略至少包括下述中的一种:
    TCI状态的偏移、TCI状态的循环和TCI状态的对换。
  19. 根据权利要求3至15任一项所述的方法,其中,所述从所述K个TCI状态中确定时域上每次下行数据传输中,每个DMRS端口对应的TCI状态,包括:
    DMRS端口集合的数量为1时,按照第三预设策略确定时域上每次下行数据传输中所述DMRS端口对应的TCI状态。
  20. 根据权利要求19所述的方法,其中,所述第三预设策略至少包括下述中的一项:
    每次下行数据传输按序使用所述K个TCI状态构成的TCI序列中的一个TCI状态,当K个TCI状态使用完毕后,下行数据传输重复K个TCI状态的使用顺序;
    从所述K个TCI状态中选择与所述下行数据在时域上的传输次数相同数量的TCI状态,每次下行数据传输顺序使用一个TCI状态。
  21. 根据权利要求1至20任一项所述的方法,其中,所述基于所述DCI确定下行数据传输对应的RV,包括:
    基于所述DCI中的天线端口指示信息和/或RV指示信息,确定下行数据传输对应的RV值。
  22. 根据权利要求21所述的方法,其中,所述基于所述DCI中的天线端口指示信息和/或RV指示信息确定下行数据传输对应的RV值,包括:
    基于所述DCI中的RV指示信息中RV值与下行数据传输的次数的对应关系,确定每次下行数据传输对应的RV值;
    时域上每次下行数据传输中,DMRS端口对应于同一个RV值,所述DMRS端口由所述DCI中的天线端口指示信息指示。
  23. 根据权利要求21所述的方法,其中,所述基于所述DCI中的天线端口指示信息和/或RV指示信息确定下行数据传输对应的RV值,包括:
    基于所述DCI中的RV指示信息,选择DMRS端口所属的每个DMRS端口集合对应的RV值;
    时域上每次下行数据传输中,DMRS端口所属的DMRS端口集合对应的RV值恒定,所述DMRS端口由所述DCI中的天线端口指示信息指示。
  24. 根据权利要求21所述的方法,其中,所述基于所述DCI中的天线端口指示信息和/或RV指示信息确定下行数据传输对应的RV值,包括:
    基于所述DCI中的RV指示信息选择时域上一次下行数据传输中,DMRS端口所属的每个DMRS端口集合分别对应的RV值,所述DMRS端口由所述DCI中的天线端口指示信息指示;
    基于所述一次下行数据传输中每个DMRS端口集合分别对应的RV值,按照第四预设策略确定所述一次下行数据传输后续一次或多次的下行数据传输中,所述DMRS端口所属的每个DMRS端口集合分别对应的RV值。
  25. 根据权利要求24所述的方法,其中,所述第四预设策略至少包括下述中的一项:
    RV值的取值偏移、RV值序列中的位置偏移和RV值对换。
  26. 根据权利要求21所述的方法,其中,所述基于所述DCI中的天线端口指示信息和/或RV指示信息确定下行数据传输对应的RV值,包括:
    基于所述DCI中的RV指示信息确定每次下行数据传输中,DMRS端口所属的每个DMRS端口集合分别对应的RV值,所述DMRS端口由所述DCI中的天线端口指示信息指示。
  27. 根据权利要求26所述的方法,其中,所述基于所述DCI中的天线端口指示信息和/或RV指示信息确定下行数据传输对应的RV值,包括:
    基于所述下行数据传输的次序与DMRS端口集合、以及RV值的对应关系,确定每次下行数据传输中每个DMRS端口集合对应的RV值。
  28. 根据权利要求27所述的方法,其中,基于所述下行数据传输的次序与DMRS端口集合、以及RV值的对应关系,确定每次下行数据传输中每个DMRS端口集合对应的RV值,包括:
    基于一个特定顺序的RV值序列,同一个DMRS端口集合的多次下行数据传输对应所述RV值序列中位置相邻的RV值,其中位置相邻包括循环位置相邻。
  29. 根据权利要求26所述的方法,其中,所述基于所述DCI中的天线端口指示信息和/或RV指示信息确定下行数据传输对应的RV值,包括:
    基于所述每个DMRS端口集合与M次下行数据传输中RV值的对应关系,确定每次下行数据传输中每个DMRS端口集合对应的RV值,M大于或等于1。
  30. 根据权利要求29所述的方法,其中,所述基于所述每个DMRS端口集合与M次下行数据传输中RV值的对应关系,确定每次下行数据传输中每个DMRS端口集合对应的RV值,包括:
    基于一个特定顺序的RV值序列,一次传输中的DMRS端口集合对应所述RV值序列中位置相邻的RV值,其中位置相邻包括循环位置相邻。
  31. 根据权利要求21所述的方法,其中,所述基于所述DCI中的天线端口指示信息和/或RV指示信息确定下行数据传输对应的RV值,包括:
    基于所述DCI中的RV指示信息确定一次下行数据传输中,DMRS端口所属的第一DMRS端口集合对应的RV值;
    基于所述第一DMRS端口集合对应的RV值,按照第五预设策略确定所述一次下行数据传输中DMRS端口所属的除所述第一DMRS端口集合以外的其他DMRS端口集合对应的RV值,所述DMRS端口由所述DCI中的天线端口指示信息指示。
  32. 根据权利要求31所述的方法,其中,所述第五预设策略至少包括下述中的一项:
    所述其他DMRS端口集合对应的RV值为,对所述第一DMRS端口集合对应的RV值以第三值顺序累加后取模得到的多个值;
    RV值与DMRS端口集合顺序的对应关系。
  33. 根据权利要求21所述的方法,其中,所述基于所述DCI中的天线端口指示信息和/或RV指示信息确定下行数据传输对应的RV值,包括:
    基于所述DCI中的RV指示信息,按照第六预设策略获取多个RV信息,每个RV信息用于指示下行数据传输中DMRS端口所属的一个DMRS端口集合对应的RV值,所述DMRS端口由所述DCI中的天线端口指示信息指示。
  34. 根据权利要求33所述的方法,其中,所述第六预设策略包括:
    所述多个RV指示信息的取值为,对所述DCI中的RV指示信息的取值以第四值顺序累加后取模得到的多个值。
  35. 根据权利要求1至34任一项所述的方法,其中,所述下行数据传输对应于多个时隙中的物理下行共享信道PDSCH,或者连续的多个PDSCH传输机会。
  36. 根据权利要求1至35任一项所述的方法,其中,所述下行数据传输对应于一个时隙中占用不同符号的多次传输。
  37. 根据权利要求1至35任一项所述的方法,其中,所述下行数据传输为同时传输的多个下行数据传输,且不同的下行数据传输对应不同的TCI状态。
  38. 根据权利要求1至37任一项所述的方法,其中,所述下行数据传输为多个时,所述多个下行数据传输为完全相同的信道编码后的比特数据。
  39. 根据权利要求1至37任一项所述的方法,其中,所述下行数据传输为多个时,所述多个下行数据传输为相同数据或相同的传输块TB经信道编码后取出的不同比特数据。
  40. 根据权利要求1至39任一项所述的方法,其中,所述下行数据传输为多个时,所述多个下行数据传输对应相同的混合自动重传请求HARQ进程。
  41. 根据权利要求1至40任一项所述的方法,其中,所述方法还包括:
    所述终端设备基于所述TCI状态和所述RV值接收下行数据。
  42. 一种终端设备,所述终端设备包括:
    处理单元,配置为基于下行控制信息DCI,确定下行数据传输对应的传输配置指示TCI状态;基于所述DCI确定下行数据传输对应的冗余版本RV值;
    所述TCI状态和所述RV值用于所述终端设备接收下行数据。
  43. 根据权利要求42所述的终端设备,其中,所述处理单元,配置为基于所述DCI中的天线端口指示信息和TCI状态指示信息,确定下行数据传输对应的TCI状态。
  44. 根据权利要求42或43所述的终端设备,其中,所述处理单元,配置为基于所述DCI中的TCI状态指示信息,确定K个TCI状态,K大于1;
    根据DMRS端口所属的DMRS端口集合,从所述K个TCI状态中确定时域上每次下行数据传输中,每个DMRS端口对应的TCI状态,所述DMRS端口由所述DCI中的天线端口指示信息指示。
  45. 根据权利要求44所述的终端设备,其中,所述DMRS端口所属的DMRS端口集合,基于所述DCI中的端口指示信息所指示的DMRS端口所对应的DMRS CDM 组,以及DMRS CDM组与DMRS端口集合的对应关系确定。
  46. 根据权利要求45所述的终端设备,其中,所述DMRS CDM组与DMRS端口集合的对应关系由所述终端设备预先设定,或者由网络设备通过配置信令发送至所述终端设备。
  47. 根据权利要求44所述的终端设备,其中,所述处理单元,配置为基于网络设备发送的第一指示信息确定所述DMRS端口所属的DMRS端口集合。
  48. 根据权利要求47所述的终端设备,其中,所述处理单元,配置为所述第一指示信息对应的值为第一值时,确定全部DMRS端口属于一个DMRS端口集合。
  49. 根据权利要求47所述的终端设备,其中,所述处理单元,配置为所述第一指示信息对应的值为第二值时,基于预先设定DMRS端口与DMRS端口集合对应关系,确定所述DCI中的端口指示信息指示的DMRS端口所属的DMRS端口集合。
  50. 根据权利要求47所述的终端设备,其中,所述第一指示信息指示每个DMRS端口集合包括的DMRS端口。
  51. 根据权利要求47所述的终端设备,其中,所述处理单元,配置为所述第一指示信息被配置时,所述终端设备基于所述DCI中的端口指示信息所指示的DMRS端口所对应的DMRS CDM组,以及DMRS CDM组与DMRS端口集合的对应关系,确定所述DMRS端口所属的DMRS端口集合。
  52. 根据权利要求51所述的终端设备,其中,所述DMRS CDM组与DMRS端口集合的对应关系由所述终端设备预先设定,或者由网络设备通过配置信令发送至所述终端设备。
  53. 根据权利要求47所述的终端设备,其中,所述处理单元,配置为所述第一指示信息被配置时,基于第一预设策略确定所述DMRS端口所属的DMRS端口集合。
  54. 根据权利要求44所述的终端设备,其中,所述处理单元,配置为基于第一预设策略确定所述DMRS端口所属的DMRS端口集合。
  55. 根据权利要求42至54任一项所述的终端设备,其中,所述处理单元,还配置为基于网络设备发送的第二指示信息确定所述下行数据在时域上的传输次数。
  56. 根据权利要求55所述的终端设备,其中,所述第二指示信息为物理下行共享信道聚合因子PDSCH-AggregationFactor。
  57. 根据权利要求44至56任一项所述的终端设备,其中,所述处理单元,配置为确定不同DMRS端口集合所属的DMRS端口对应不同的TCI状态;在时域上每次传输下行数据时,每个所述DMRS端口对应的TCI状态恒定。
  58. 根据权利要求44至57任一项所述的终端设备,其中,所述处理单元,配置为基于上一次下行数据传输所对应的TCI状态,按照第二预设策略确定下行数据传输中每个DMRS端口对应的TCI状态。
  59. 根据权利要求58所述的终端设备,其中,所述第二预设策略至少包括下述中的一种:
    TCI状态的偏移、TCI状态的循环和TCI状态的对换。
  60. 根据权利要求44至56任一项所述的终端设备,其中,所述处理单元,配置为DMRS端口集合的数量为1时,按照第三预设策略确定时域上每次下行数据传输中所述DMRS端口对应的TCI状态。
  61. 根据权利要求60所述的终端设备,其中,所述第三预设策略至少包括下述中的一项:
    每次下行数据传输按序使用所述K个TCI状态构成的TCI序列中的一个TCI状态,当K个TCI状态使用完毕后,下行数据传输重复K个TCI状态的使用顺序;
    从所述K个TCI状态中选择与所述下行数据在时域上的传输次数相同数量的TCI状态,每次下行数据传输顺序使用一个TCI状态。
  62. 根据权利要求42至61任一项所述的终端设备,其中,所述处理单元,配置为基于所述DCI中的天线端口指示信息和/或RV指示信息,确定下行数据传输对应的RV值。
  63. 根据权利要求62所述的终端设备,其中,所述处理单元,配置为基于所述DCI中的RV指示信息中RV值与下行数据传输的次数的对应关系,确定每次下行数据传输对应的RV值;
    时域上每次下行数据传输中,DMRS端口对应于同一个RV值,所述DMRS端口由所述DCI中的天线端口指示信息指示。
  64. 根据权利要求62所述的终端设备,其中,所述处理单元,配置为基于所述DCI中的RV指示信息,选择DMRS端口所属的每个DMRS端口集合对应的RV值;
    时域上每次下行数据传输中,DMRS端口所属的DMRS端口集合对应的RV值恒定,所述DMRS端口由所述DCI中的天线端口指示信息指示。
  65. 根据权利要求62所述的终端设备,其中,所述处理单元,配置为基于所述DCI中的RV指示信息选择时域上一次下行数据传输中,DMRS端口所属的每个DMRS端口集合分别对应的RV值,所述DMRS端口由所述DCI中的天线端口指示信息指示;
    基于所述一次下行数据传输中每个DMRS端口集合分别对应的RV值,按照第四预设策略确定所述一次下行数据传输后续一次或多次的下行数据传输中,所述DMRS端口所属的每个DMRS端口集合分别对应的RV值。
  66. 根据权利要求65所述的终端设备,其中,所述第四预设策略至少包括下述中的一项:
    RV值的取值偏移、RV值序列中的位置偏移和RV值对换。
  67. 根据权利要求62所述的终端设备,其中,所述处理单元,配置为基于所述DCI中的RV指示信息确定每次下行数据传输中,DMRS端口所属的每个DMRS端口集合分别对应的RV值,所述DMRS端口由所述DCI中的天线端口指示信息指示。
  68. 根据权利要求67所述的终端设备,其中,所述处理单元,配置为基于所述下行数据传输的次序与DMRS端口集合、以及RV值的对应关系,确定每次下行数据传输中每个DMRS端口集合对应的RV值。
  69. 根据权利要求68所述的终端设备,其中,所述处理单元,配置为基于一个特定顺序的RV值序列,同一个DMRS端口集合的多次下行数据传输对应所述RV值序列中位置相邻的RV值,其中位置相邻包括循环位置相邻。
  70. 根据权利要求67所述的终端设备,其中,所述处理单元,配置为基于所述每个DMRS端口集合与M次下行数据传输中RV值的对应关系,确定每次下行数据传输中每个DMRS端口集合对应的RV值,M大于或等于1。
  71. 根据权利要求70所述的终端设备,其中,所述处理单元,配置为基于一个特定顺序的RV值序列,一次传输中的DMRS端口集合对应所述RV值序列中位置相邻的RV值,其中位置相邻包括循环位置相邻。
  72. 根据权利要求62所述的终端设备,其中,所述处理单元,配置为基于所述DCI中的RV指示信息确定一次下行数据传输中,DMRS端口所属的第一DMRS端口集合对应的RV值;
    基于所述第一DMRS端口集合对应的RV值,按照第五预设策略确定所述一次下行数据传输中DMRS端口所属的除所述第一DMRS端口集合以外的其他DMRS端口集合对应的RV值,所述DMRS端口由所述DCI中的天线端口指示信息指示。
  73. 根据权利要求72所述的终端设备,其中,所述第五预设策略至少包括下述中的一项:
    所述其他DMRS端口集合对应的RV值为,对所述第一DMRS端口集合对应的RV值以第三值顺序累加后取模得到的多个值;
    RV值与DMRS端口集合顺序的对应关系。
  74. 根据权利要求62所述的终端设备,其中,所述处理单元,配置为基于所述DCI中的RV指示信息,按照第六预设策略获取多个RV信息,每个RV信息用于指示下行数据传输中DMRS端口所属的一个DMRS端口集合对应的RV值,所述DMRS端口由所述DCI中的天线端口指示信息指示。
  75. 根据权利要求74所述的终端设备,其中,所述第六预设策略包括:
    所述多个RV指示信息的取值为,对所述DCI中的RV指示信息的取值以第四值顺序累加后取模得到的多个值。
  76. 根据权利要求42至75任一项所述的终端设备,其中,所述下行数据传输对应于多个时隙中的物理下行共享信道PDSCH,或者连续的多个PDSCH传输机会。
  77. 根据要求42至76任一项所述的终端设备,其中,所述下行数据传输对应于一个时隙中占用不同符号的多次传输。
  78. 根据要求42至77任一项所述的终端设备,其中,所述下行数据传输为同时传输的多个下行数据传输,且不同的下行数据传输对应不同的TCI状态。
  79. 根据要求42至78任一项所述的终端设备,其中,所述下行数据传输为多个时,所述多个下行数据传输为完全相同的信道编码后的比特数据。
  80. 根据要求42至78任一项所述的终端设备,其中,所述下行数据传输为多个时,所述多个下行数据传输为相同数据或相同的传输块TB经信道编码后取出的不同比特数据。
  81. 根据要求42至80任一项所述的终端设备,其中,所述下行数据传输为多个时,所述多个下行数据传输对应相同的混合自动重传请求HARQ进程。
  82. 根据要求42至81任一项所述的终端设备,其中,所述终端设备还包括:
    收发单元,配置为基于所述TCI状态和所述RV值接收下行数据。
  83. 一种终端设备,包括处理器和用于存储能够在处理器上运行的计算机程序的存储器,其中,
    所述处理器用于运行所述计算机程序时,执行权利要求1至41任一项所述的下行数据传输方法的步骤。
  84. 一种存储介质,存储有可执行程序,所述可执行程序被处理器执行时,实现权利要求1至41任一项所述的下行数据传输方法。
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102752083A (zh) * 2011-04-22 2012-10-24 株式会社Ntt都科摩 一种实现多点协作传输配置的方法
US20180091276A1 (en) * 2016-09-29 2018-03-29 Qualcomm Incorporated Techniques for dynamic demodulation reference signal patterns for data transmission
WO2018204863A1 (en) * 2017-05-04 2018-11-08 Ofinno Technologies, Llc Beam-based measurement configuration
CN109076364A (zh) * 2018-07-25 2018-12-21 北京小米移动软件有限公司 传输配置方法及装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017194022A1 (zh) 2016-05-13 2017-11-16 中兴通讯股份有限公司 下行控制信息的传输方法、装置及系统
CN109327905A (zh) * 2017-07-31 2019-02-12 展讯通信(上海)有限公司 数据传输的方法、终端及计算机可读介质
US11419173B2 (en) * 2017-08-09 2022-08-16 Idac Holdings, Inc. Methods and systems for beam recovery and management
KR102033353B1 (ko) * 2017-09-08 2019-10-17 한국전자통신연구원 상향링크 데이터 채널 송수신 방법 및 이를 위한 장치
WO2019050367A1 (ko) 2017-09-08 2019-03-14 엘지전자 주식회사 무선 통신 시스템에서 참조 신호를 송수신하기 위한 방법 및 이를 위한 장치
JPWO2020003525A1 (ja) * 2018-06-29 2021-08-02 株式会社Nttドコモ 無線基地局
WO2020067782A1 (en) * 2018-09-28 2020-04-02 Samsung Electronics Co., Ltd. Method and device for transmitting or receiving groupcast feedback in wireless cellular communication system
US11563514B2 (en) * 2019-02-14 2023-01-24 Qualcomm Incorporated Dynamic switching between different multi-transmission/reception point schemes

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102752083A (zh) * 2011-04-22 2012-10-24 株式会社Ntt都科摩 一种实现多点协作传输配置的方法
US20180091276A1 (en) * 2016-09-29 2018-03-29 Qualcomm Incorporated Techniques for dynamic demodulation reference signal patterns for data transmission
WO2018204863A1 (en) * 2017-05-04 2018-11-08 Ofinno Technologies, Llc Beam-based measurement configuration
CN109076364A (zh) * 2018-07-25 2018-12-21 北京小米移动软件有限公司 传输配置方法及装置

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