WO2021063044A1 - 一种传输模式的指示方法、装置、基站、终端及存储介质 - Google Patents

一种传输模式的指示方法、装置、基站、终端及存储介质 Download PDF

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WO2021063044A1
WO2021063044A1 PCT/CN2020/098427 CN2020098427W WO2021063044A1 WO 2021063044 A1 WO2021063044 A1 WO 2021063044A1 CN 2020098427 W CN2020098427 W CN 2020098427W WO 2021063044 A1 WO2021063044 A1 WO 2021063044A1
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Prior art keywords
signaling
indication information
transmission mode
carries
offset
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PCT/CN2020/098427
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English (en)
French (fr)
Inventor
高雪媛
苏昕
高秋彬
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大唐移动通信设备有限公司
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Priority to US17/641,428 priority Critical patent/US20220337344A1/en
Priority to EP20870566.5A priority patent/EP4040694A4/en
Priority to KR1020227008942A priority patent/KR20220047365A/ko
Publication of WO2021063044A1 publication Critical patent/WO2021063044A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
    • H04L1/1819—Hybrid protocols; Hybrid automatic repeat request [HARQ] with retransmission of additional or different redundancy
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/08—Arrangements for detecting or preventing errors in the information received by repeating transmission, e.g. Verdan system
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/022—Site diversity; Macro-diversity
    • H04B7/024—Co-operative use of antennas of several sites, e.g. in co-ordinated multipoint or co-operative multiple-input multiple-output [MIMO] systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0025—Transmission of mode-switching indication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1867—Arrangements specially adapted for the transmitter end
    • H04L1/1896—ARQ related signaling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0032—Distributed allocation, i.e. involving a plurality of allocating devices, each making partial allocation
    • H04L5/0035—Resource allocation in a cooperative multipoint environment
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/0051—Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/14—Two-way operation using the same type of signal, i.e. duplex

Definitions

  • the present invention relates to the field of communication technology, in particular to a method, a device, a base station, a terminal and a storage medium for indicating a transmission mode.
  • URLLC Ultra Reliable Low Latency Communications
  • AR Augmented Reality
  • VR Virtual Reality
  • Traffic control requirements including remote driving, and power distribution control requirements.
  • TRP Transmission Reception Point
  • PANEL Panel
  • the QOS (Quality of Service) quality requirements for URLLC services are very high, and many services require a block error rate of 10 -4 or more.
  • the channel fading situation of each TRP/PANEL to a certain UE may be quite different.
  • the problem becomes more prominent, and the channel fading ( Fading) and blocking (blocking) will seriously reduce the transmission quality of a TRP or even fail to transmit normally.
  • a more effective transmission scheduling strategy is needed to guarantee changes.
  • the embodiments of the present invention provide a method, device, base station, terminal, and storage medium for indicating a transmission mode.
  • an embodiment of the present invention proposes a method for indicating a transmission mode, including:
  • the signaling carries the indication information of the transmission configuration indicating the TCI state, the indication information of the redundancy version RV, the indication information of the demodulation reference signal DMRS port, and the indication information of whether to carry the number of repeated transmissions.
  • an embodiment of the present invention also proposes a method for indicating a transmission mode, including:
  • the signaling carries the indication information of the transmission configuration indicating the TCI state, the indication information of the redundancy version RV, the indication information of the demodulation reference signal DMRS port, and the indication information of whether to carry the number of repeated transmissions.
  • an embodiment of the present invention provides a transmission mode indicating device, including:
  • the signaling sending module is used to send signaling to the terminal UE, so that the UE determines the transmission mode between the UE and the base station according to the signaling;
  • the signaling carries the indication information of the transmission configuration indicating the TCI state, the indication information of the redundancy version RV, the indication information of the demodulation reference signal DMRS port, and the indication information of whether to carry the number of repeated transmissions.
  • an embodiment of the present invention also provides a transmission mode indicating device, including:
  • the signaling receiving module is used to receive the signaling sent by the base station, and determine the transmission mode between the UE and the base station according to the signaling;
  • the signaling carries the indication information of the transmission configuration indicating the TCI state, the indication information of the redundancy version RV, the indication information of the demodulation reference signal DMRS port, and the indication information of whether to carry the number of repeated transmissions.
  • an embodiment of the present invention proposes a base station, including a memory, a processor, and a computer program stored in the memory and capable of running on the processor.
  • the processor executes the following steps when the program is executed:
  • the signaling carries the indication information of the transmission configuration indicating the TCI state, the indication information of the redundancy version RV, the indication information of the demodulation reference signal DMRS port, and the indication information of whether to carry the number of repeated transmissions.
  • an embodiment of the present invention provides a terminal including a memory, a processor, and a computer program stored on the memory and capable of running on the processor, and the processor executes the following steps when the program is executed:
  • the signaling carries the indication information of the transmission configuration indicating the TCI state, the indication information of the redundancy version RV, the indication information of the demodulation reference signal DMRS port, and the indication information of whether to carry the number of repeated transmissions.
  • an embodiment of the present invention proposes a non-transitory computer-readable storage medium, the non-transitory computer-readable storage medium stores a computer program, and the computer program causes the computer to execute the above-mentioned transmission mode instruction method.
  • the embodiments of the present invention also provide a non-transitory computer-readable storage medium, the non-transitory computer-readable storage medium storing a computer program, and the computer program causes the computer to execute the above-mentioned transmission mode instruction method .
  • the embodiment of the present invention carries indication information in the signaling to indicate a specific transmission mode, which can realize dynamic switching between different transmission modes, and better improve system performance, reliability and resource utilization. rate.
  • FIG. 1 is a schematic flowchart of a single RV transmission mode provided by the prior art
  • FIG. 2 is a schematic flowchart of a multi-RV transmission mode provided by the prior art
  • FIG. 3 is a schematic flowchart of a method for indicating a transmission mode on a base station side according to an embodiment of the present invention
  • FIG. 4 is a schematic flowchart of a method for indicating a transmission mode on a terminal side according to an embodiment of the present invention
  • FIG. 5 is a schematic diagram of a flow of transmission mode judgment according to an embodiment of the present invention.
  • FIG. 6 is a schematic flowchart of a transmission mode judgment according to another embodiment of the present invention.
  • FIG. 7 is a schematic structural diagram of a transmission mode indicating device on the base station side according to an embodiment of the present invention.
  • FIG. 8 is a schematic structural diagram of a transmission mode indicating device on the terminal side according to an embodiment of the present invention.
  • FIG. 9 is a logical block diagram of a base station provided by an embodiment of the present invention.
  • Fig. 10 is a logical block diagram of a base station provided by an embodiment of the present invention.
  • multi-point coordinated transmission technologies based on multi-TRP/PANEL mainly include the following two:
  • the application of multiple TRP/PANEL in the base station is mainly to improve the coverage of the cell edge, provide a more balanced quality of service in the service area, and coordinate data transmission among multiple TRP/PANEL in different ways. From the perspective of network morphology, network deployment with a large number of distributed access points plus baseband centralized processing will be more conducive to providing a balanced user experience rate, and significantly reducing the delay and signaling overhead caused by handover .
  • the antenna array of each TRP can be divided into several relatively independent antenna panels, and the shape and number of ports of the entire array can be flexibly adjusted according to deployment scenarios and service requirements.
  • the antenna panels or TRPs can also be connected by optical fibers to facilitate more flexible distributed deployment. Using the cooperation between multiple TRPs or panels to transmit/receive from multiple beams from multiple angles can better overcome various occlusion/blocking effects, ensure the robustness of link connections, and be suitable for URLLC services to enhance transmission Quality and meet reliability requirements.
  • the currently adopted URLLC enhancement schemes based on coordinated multi-point transmission include the following:
  • Solution 1 On overlapping time-frequency resources in a slot, each transmission opportunity (transmission occasion, actually refers to the signal sent by a TRP on a resource) corresponds to A group of data layers of an associated TCI state (Transmission Configuration Indicator state) and a group of DMRS (Demodulation reference signal, demodulation reference signal) ports.
  • TCI state Transmission Configuration Indicator state
  • DMRS Demodulation reference signal, demodulation reference signal
  • Solution 1a Support a single RV (Redundancy Version) transmission mode. That is, different layers of data of the same TB are simultaneously transmitted through different TRPs and mapped on the same time-frequency resource. The process is shown in Figure 1.
  • RV Redundancy Version
  • Solution 1b Support the transmission mode of multiple RVs. That is, the data of different RV versions of the same TB are independently transmitted on different TRPs through different layers and mapped on the same time-frequency resource. The process is shown in Figure 2.
  • Solution 2 Frequency Division Multiplexing, Frequency Division Multiplexing: In a slot, each frequency domain resource is associated with a TCI state, and the frequency domain resources do not overlap each other.
  • Option 2a Support a single RV transmission mode. That is, the data of the same TB is simultaneously transmitted through different TRPs and mapped on different frequency domain resources that do not overlap each other. The process is shown in Figure 1.
  • Solution 2b Support multiple RV transmission modes. That is, different RV versions of the same TB are independently transmitted through different TRPs and mapped on different frequency domain resources that do not overlap each other. The process is shown in Figure 2.
  • the SDM scheme or the FDM scheme for a single RV transmission mode, part of the data of the encoding block corresponding to the RV is transmitted on each TRP, which is not a complete encoding block. Therefore, the received data on each TRP cannot be decoded separately.
  • the data from different TRPs of different layers can be decoded after being completely received.
  • the coded blocks of different RV versions of the same TB are transmitted on different TRPs, and the receiving end can combine and decode the coded block data of different RV versions before decoding according to the UE capability. Therefore, corresponding to the same time-frequency resource allocation, the coding rate of a single RV scheme is lower and the coding gain is higher.
  • the advantage of multi-RV transmission is that the data transmitted on each TRP can be decoded separately or combined and decoded to offset the impact caused by the increase in the encoding rate by combining gains.
  • TDM Time Division Multiplexing
  • TDM3 time division multiplexing within time slots
  • TDM4 time division multiplexing between time slots
  • Each time domain resource is associated with a TCI state, and the time domain resources do not overlap each other.
  • One of the time domain resources refers to a group (there can be only one slot in each group).
  • the present invention utilizes the configuration of various control signaling to support the URLLC service of the reliability transmission scheme during cooperative transmission between multiple TRPs/PANELs, and provides a method for switching and scheduling under different transmission modes.
  • SDM or FDM When configuring URLLC services that require high latency, SDM or FDM is generally used for transmission.
  • TDM can be used for transmission.
  • the network side uses the following methods to specify the transmission mode of this transmission, the terminal The side also determines the transmission mode in the same way:
  • the network distinguishes the number of TCI states used for current transmission through the dynamic indication of the signaling TCI code point, and judges whether it is a single TRP transmission mode or a multi-TRP cooperative transmission mode, and configures the TCI code point to support the single TRP transmission mode and Dynamic switching between multi-point TRP cooperative transmission.
  • FIG. 3 shows a schematic flowchart of a method for indicating a transmission mode on the base station side provided by this embodiment, including:
  • S301 Send signaling to the terminal UE, so that the UE determines the transmission mode between the UE and the base station according to the signaling;
  • the signaling carries the indication information of the transmission configuration indicating the TCI state, the indication information of the redundancy version RV, the indication information of the demodulation reference signal DMRS port, and the indication information of whether to carry the number of repeated transmissions.
  • the indication information includes at least TCI status, RV and DMRS ports, and may or may not carry the number of repeated transmissions. carry.
  • the embodiment of the present invention carries indication information in the signaling to indicate a specific transmission mode, so that dynamic switching between different transmission modes can be realized, and system performance, reliability, and resource utilization can be better improved.
  • the signaling further carries indication information of the transmission mode.
  • the transmission mode between the base station and the UE as shown in Table 1 can be determined through various specific parameters.
  • the signaling carries the indication information of the transmission mode, it can be combined with the indication information of the TCI status, RV, and DMRS port carried in the signaling, and whether to carry the number of repeated transmissions, which is more convenient to determine between the base station and the UE The transmission mode shown in Table 1.
  • the signaling when the TCI state is the first preset value, the signaling also carries whether the physical downlink shared channel PDSCH currently transmitted by the UE adopts the time division multiplexing TDM transmission mode. Instructions.
  • the TCI state includes two states: only one state and two states.
  • the signaling carries The indication information of whether the PDSCH currently transmitted by the UE adopts the TDM transmission mode.
  • the signaling is configured with the number of repeated transmissions (K1 or K2) at the same time, it needs to be repeated K1 times in the slot or K2 times between the slots according to the single TRP transmission mode;
  • the TRP indicated by the TCI state is used as the transmission point for PDSCH transmission.
  • the indication information of whether the physical downlink shared channel PDSCH currently transmitted by the UE adopts the time division multiplexing TDM transmission mode specifically includes:
  • the PDSCH currently transmitted by the UE does not use the TDM transmission mode and the indication information of the DMRS port allocation information; or,
  • the PDSCH currently transmitted by the UE adopts the TDM transmission mode and the indication information of the number of repeated transmissions.
  • the signaling carries the indication information of the number of repeated transmissions
  • the number of repeated transmissions is indicated for K1 and K2 according to the K1 parameter set, the K2 parameter set and the MAC-CE (Media Access Control Control Unit) configuration carried in the RRC signaling; or,
  • the number of repeated transmissions is based on whether the high-level signaling is configured with K1 corresponding to TDM3, or whether the high-level signaling is configured with the K2 indication corresponding to TDM4.
  • the network uses the following signaling instructions to distinguish a specific multiplexing mode in the multi-TRP transmission mode, that is, one of SDM/FDM/TDM3/TDM4.
  • the network indicates through signaling whether the PDSCH currently transmitted by the UE adopts the slot/mini-slot aggregation TDM transmission mode, and which TDM transmission mode (TDM3 or TDM4) is specifically adopted. If TDM transmission mode is not used, it is SDM or FDM transmission mode, that is, SDM/FDM mode or TDM3 or TDM4.
  • the configuration of the number of repeated transmissions for TDM 3 can be configured as K1 times by the network, and the number of repeated transmissions for TDM 4 can be configured as K2 times.
  • the K1 set and K2 set are configured through RRC signaling.
  • the K1 set includes ⁇ -1 ⁇ , ⁇ 2 ⁇ , ⁇ 4 ⁇
  • the K2 set includes ⁇ -1 ⁇ , ⁇ 2 ⁇ , ⁇ 4 ⁇ , ⁇ 8 ⁇ , where Similar to ⁇ -1 ⁇ , it can indicate that an invalid number of times is not configured.
  • the K1 corresponding to TDM3 is selected as ⁇ -1 ⁇ through the MAC-CE configuration, and the K2 corresponding to TDM4 is configured as ⁇ -1 ⁇ , then the corresponding PDSCH transmission will adopt the SDM or FDM transmission mode at this time.
  • K1 corresponding to TDM3 is not configured through RRC signaling, and K2 corresponding to TDM4 is not configured at the same time, the corresponding PDSCH transmission at this time adopts SDM or FDM transmission mode.
  • the signaling specifically carries the space division multiplexing SDM/frequency division multiplexing FDM used by the current PDSCH configured by the higher layer. /Time-division multiplexing in time slot TDM3/Time-division multiplexing between time slots TDM4 transmission mode indication information.
  • the second preset value and the first preset value in this embodiment may be the same, that is, both may be two, that is, the TCI state is two states.
  • the signaling carries the indication information of the TDM3/TDM4 transmission mode
  • the signaling carries the indication information of the number of repeated transmissions.
  • the base station and the UE respectively agree on the number of repeated transmissions of TDM3 in the time slot.
  • the signaling carries indication information of the number of repeated transmissions, which specifically includes:
  • the signaling carries the indication information of the number of repeated transmissions configured by the higher layer; or,
  • the signaling is DCI signaling, and the DCI signaling adds indication information of the number of repeated transmissions in the time domain resource allocation TDRA or RV code point.
  • the network directly indicates through high-level signaling that the current multiplexing mode of PDSCH transmission is one of SDM/FDM/TDM3/TDM4, so as to realize the switching between these transmission modes.
  • the network simultaneously configures the number of repeated transmissions (K1 or K2) through signaling.
  • the number of repeated transmissions can be indicated by means of higher layer signaling
  • DCI signaling for example, it can be indicated by increasing the number of repeated transmissions in TDRA or RV code point;
  • the signaling is DCI signaling, and the DCI signaling specifically carries the indication information of the RV or RV combination configured by the higher layer that corresponds to the TCI state on a one-to-one basis; or,
  • the signaling specifically carries the indication information of the RV and/or RV combination corresponding to the RV code point that is predefined or configured by the higher layer; or,
  • the signaling specifically carries indication information of RV and RV_offset, where the RV_offset is the value of the starting position of the RV transmission base sequence configured by the higher layer; or,
  • the signaling specifically carries the indication information of the RV, and the default value of RV_offset is agreed on the base station and the UE side respectively.
  • the signaling specifically carries the indication information of the RV and/or the combination of RVs corresponding to the RV code points that are predefined or configured by higher layers
  • the RV code point includes the RV value used for the transmission mode of a single RV and the RV combination used for the transmission modes of multiple RVs;
  • the RV code point includes RV or RV_offset for a single TCI state, and RV combination or RV_offset combination for multiple TCI states.
  • the signaling carries indication information of the SDM/FDM/TDM transmission mode, indicate RV1 according to RV, and indicate RV2 according to RV1 and RV_offset;
  • RV1 and RV2 have a one-to-one correspondence with the transmission timing corresponding to the TCI state indicated in the TCI code point;
  • the signaling carries the indication information of the TDM3/TDM4 transmission mode, indicate RV1 or RV_offset1 according to RV1, indicate RV2 according to RV1 and RV_offset, indicate RV_offset2 according to RV1 and RV_offset;
  • the RV sequence obtained according to RV_offset1 and RV_offset2 corresponds to the transmission timing corresponding to the TCI state indicated in the TCI code point in a one-to-one correspondence.
  • RV or RV combination there are three methods for indicating RV or RV combination:
  • Method 1 The higher layer configures the RV (or RV_offset) or the available RV combination (or RV_offset combination) corresponding to different TCI states in the DCI signaling, and corresponds to the TCI state one-to-one.
  • Method 2 Predefine or configure the available RV (or RV offset) and/or the available RV combination (or RV offset combination), and correspond to different RV code points.
  • the base station dynamically indicates the RV code point through DCI signaling, which corresponds to an RV or RV sequence start position RV_offset, or RV configuration ⁇ RV1, RV2 ⁇ or RV start position RV_offset combination ⁇ RV_offset1, RV_offset2 ⁇ , and is combined with TCI code point
  • the indicated TCI state has a one-to-one correspondence.
  • the RV code point indicated here includes the RV value of the transmission mode (SDM-a/FDM-a/single TRP) that can be used for a single RV and used for multiple RVs, which is pre-defined or notified by higher layer signaling. RV combination of the transmission mode (SDM-b/FDM-b).
  • the RV code point indicated here includes the starting position RV_offset of the RV or RV transmission base sequence that can be used for a single TCI state, and the RV combination or combination or RV used for multiple TCI states, which is pre-defined or notified by higher layer signaling. RV_offset combination of the starting position of the RV transmission base sequence.
  • Method 3 Indicate RV and RV_offset through signaling, where RV_offset is the default value or notified by high-level signaling.
  • RV_offset mod(RV1+RV_offset,4)
  • the corresponding relationship between TCI code point and RV can be configured to realize dynamic switching between different transmission modes at the same time, so as to better improve system reliability. And resource utilization.
  • FIG. 4 shows a schematic flowchart of a method for indicating a transmission mode on the terminal side provided in this embodiment, including:
  • S401 Receive signaling sent by the base station, and determine a transmission mode between the UE and the base station according to the signaling;
  • the signaling carries the indication information of the transmission configuration indicating the TCI state, the indication information of the redundancy version RV, the indication information of the demodulation reference signal DMRS port, and the indication information of whether to carry the number of repeated transmissions.
  • the signaling also carries indication information of the transmission mode.
  • the signaling when the TCI state is the first preset value, the signaling also carries the indication information of whether the physical downlink shared channel PDSCH currently transmitted by the UE adopts the time division multiplexing TDM transmission mode.
  • the indication information of whether the physical downlink shared channel PDSCH currently transmitted by the UE adopts the time division multiplexing TDM transmission mode specifically includes:
  • the PDSCH currently transmitted by the UE does not use the TDM transmission mode and the indication information of the DMRS port allocation information; or,
  • the PDSCH currently transmitted by the UE adopts the TDM transmission mode and the indication information of the number of repeated transmissions.
  • the number of repeated transmissions is indicated for K1 and K2 according to the K1 parameter set, the K2 parameter set carried in the RRC signaling, and the MAC-CE configuration of the media access control layer control unit; or,
  • the number of repeated transmissions is based on whether the high-level signaling is configured with K1 corresponding to TDM3, or whether the high-level signaling is configured with the K2 indication corresponding to TDM4.
  • the signaling specifically carries the space division multiplexing SDM/frequency division multiplexing FDM/time division multiplexing within the time slot TDM3 used by the current PDSCH configured by the higher layer. /TDM4 transmission mode indication information for time division multiplexing between time slots.
  • the signaling carries the indication information of the TDM3/TDM4 transmission mode
  • the signaling carries the indication information of the number of repeated transmissions.
  • the base station and the UE respectively agree on the number of repeated transmissions of TDM3 in the time slot.
  • the signaling carries indication information of the number of repeated transmissions, which specifically includes:
  • the signaling carries the indication information of the number of repeated transmissions configured by the higher layer; or,
  • the signaling is DCI signaling, and the DCI signaling adds indication information of the number of repeated transmissions in the time domain resource allocation TDRA or RV code point.
  • the signaling is DCI signaling, and the DCI signaling specifically carries the indication information of the RV or RV combination configured by the higher layer that corresponds to the TCI state on a one-to-one basis; or,
  • the signaling specifically carries the indication information of the RV and/or RV combination corresponding to the RV code point that is predefined or configured by the higher layer; or,
  • the signaling specifically carries indication information of RV and RV_offset, where the RV_offset is the value of the starting position of the RV transmission base sequence configured by the higher layer; or,
  • the signaling specifically carries the indication information of the RV, and the default value of RV_offset is agreed on the base station and the UE side respectively.
  • the signaling specifically carries the indication information of the RV and/or the combination of RVs corresponding to the RV code points that are predefined or configured by higher layers
  • the RV code point includes the RV value used for the transmission mode of a single RV and the RV combination used for the transmission modes of multiple RVs;
  • the RV code point includes RV or RV_offset for a single TCI state, and RV combination or RV_offset combination for multiple TCI states.
  • the signaling carries indication information of RV and RV_offset
  • the signaling carries indication information of the SDM/FDM/TDM transmission mode, indicate RV1 according to RV, and indicate RV2 according to RV1 and RV_offset;
  • RV1 and RV2 have a one-to-one correspondence with the transmission timing corresponding to the TCI state indicated in the TCI code point;
  • the signaling carries the indication information of the TDM3/TDM4 transmission mode, indicate RV1 or RV_offset1 according to RV1, indicate RV2 according to RV1 and RV_offset, indicate RV_offset2 according to RV1 and RV_offset;
  • the RV sequence obtained according to RV_offset1 and RV_offset2 corresponds to the transmission timing corresponding to the TCI state indicated in the TCI code point in a one-to-one correspondence.
  • the method for indicating the transmission mode on the terminal side described in this embodiment corresponds to the above-mentioned method for indicating the transmission mode on the base station side, and its principles and technical effects are similar.
  • the UE After the UE receives the signaling sent by the base station, it judges according to the indication information carried in the signaling. As shown in Figure 5, when the TCI state is 1, it continues to judge:
  • the signaling is configured with the number of repeated transmissions (K1 or K2) at the same time, it needs to be repeated K1 times in the slot or K2 times between the slots according to the single TRP transmission mode;
  • the TRP indicated by the TCI state is used as the transmission point for PDSCH transmission.
  • the network uses the following signaling instructions to distinguish a specific multiplexing mode in the multi-TRP transmission mode, that is, one of SDM/FDM/TDM3/TDM4, including method 1 and method 2:
  • the network indicates through signaling whether the PDSCH currently transmitted by the UE adopts the slot/mini-slot aggregation TDM transmission mode, and which TDM transmission mode (TDM3 or TDM4) is specifically adopted. If TDM transmission mode is not used, it is SDM or FDM transmission mode, that is, SDM/FDM mode or TDM3 or TDM4.
  • the configuration of the number of repeated transmissions for TDM 3 can be configured as K1 times by the network, and the number of repeated transmissions for TDM 4 can be configured as K2 times.
  • the K1 set and K2 set are configured through RRC signaling.
  • the K1 set includes ⁇ -1 ⁇ , ⁇ 2 ⁇ , ⁇ 4 ⁇
  • the K2 set includes ⁇ -1 ⁇ , ⁇ 2 ⁇ , ⁇ 4 ⁇ , ⁇ 8 ⁇ , where Similar to ⁇ -1 ⁇ , it can indicate that an invalid number of times is not configured.
  • the K1 corresponding to TDM3 is selected as ⁇ -1 ⁇ through the MAC-CE configuration, and the K2 corresponding to TDM4 is configured as ⁇ -1 ⁇ , then the corresponding PDSCH transmission will adopt the SDM or FDM transmission mode at this time.
  • K1 corresponding to TDM3 is not configured through RRC signaling, and K2 corresponding to TDM4 is not configured at the same time, the corresponding PDSCH transmission at this time adopts the SDM or FDM transmission mode.
  • the network uses the DMRS port allocation information indicated by the signaling to further distinguish whether the transmission is SDM or FDM multiplexing mode.
  • the DMRS port configuration belongs to two CDM groups respectively, it is SDM transmission mode, otherwise it is FDM transmission.
  • the transmission mode corresponds to SDM.
  • the DMRS port information indicates ⁇ 0 ⁇ , if it is confirmed that it is not in TDM mode, it is confirmed that the transmission mode is FDM.
  • the network directly indicates that the current multiplexing mode of PDSCH transmission is one of SDM/FDM/TDM3/TDM4 through high-level signaling, so as to realize the switching between these transmission modes.
  • the network simultaneously configures the number of repeated transmissions (K1 or K2) through signaling.
  • the number of repeated transmissions can be indicated by means of higher layer signaling
  • DCI signaling for example, it can be indicated by increasing the number of repeated transmissions in TDRA or RV code point;
  • the network not only uses signaling instructions to distinguish a specific multiplexing mode in the multi-TRP transmission mode, the network also uses signaling to indicate the RV (or the RV sequence starting value RV offset) that the PDSCH may use in the TRP cooperative transmission. ) Or available RV combination (or RV sequence starting value RV offset combination).
  • the RV configuration indicates a single RV or RV combination, that is, the different multiplexing modes of a and b:
  • RV configuration indicates a single RV, it indicates the SDM-a/FDM-a transmission mode
  • RV configuration indicates the RV combination, it indicates the SDM-b/FDM-b transmission mode.
  • the two RV values included in the RV combination may be the same or different, and correspond to the TCI state one-to-one.
  • the RV configuration indication is RV combination or RV offset combination, then different RVs or RV sequence values corresponding to different RV offsets are applied to different transmission occasions corresponding to each TCI state, and This configuration corresponds to the TCI state one-to-one.
  • the RV configuration indicates a single RV or the starting value RV offset of the RV sequence.
  • RV or RV combination There are three ways to indicate RV or RV combination:
  • Method 1 The higher layer configures the RV (or RV_offset) or the available RV combination (or RV_offset combination) corresponding to different TCI states in the DCI signaling, and corresponds to the TCI state one-to-one.
  • Method 2 Predefine or configure the available RV (or RV offset) and/or the available RV combination (or RV offset combination), and correspond to different RV code points.
  • the base station dynamically indicates the RV code point through DCI signaling, which corresponds to an RV or RV sequence start position RV_offset, or RV configuration ⁇ RV1, RV2 ⁇ or RV start position RV_offset combination ⁇ RV_offset1, RV_offset2 ⁇ , and is combined with TCI code point
  • the indicated TCI state has a one-to-one correspondence.
  • the RV code point indicated here includes the RV value of the transmission mode (SDM-a/FDM-a/single TRP) that can be used for a single RV and used for multiple RVs, which is pre-defined or notified by higher layer signaling. RV combination of the transmission mode (SDM-b/FDM-b).
  • the RV code point indicated here includes the starting position RV_offset of the RV or RV transmission base sequence that can be used for a single TCI state, and the RV combination or combination or RV used for multiple TCI states, which is pre-defined or notified by higher layer signaling RV_offset combination of the starting position of the RV transmission base sequence.
  • the RV code point When the RV code point is 0-3, it indicates that the current transmission is a single TRP transmission mode or a single RV multi-TRP transmission mode (SDM-a/FDM-a/TDM) ; When the RV code point is equal to 4, multiple TRP transmission modes (SDM-b/FDM-b/TDM) with the same RV are supported; when the RV code point is greater than 4, multiple TRP transmissions with different RVs are supported ( SDM-b/FDM-b/TDM).
  • Table 3 is a simplified option configured by the base station, but the above-mentioned classification is also required. The configuration can also meet the performance requirements under certain scenario selections. Compared with Table 3, the number of signaling bits can be saved.
  • RV index RV1/RV_offset1 RV2/RV_offset2 0 0 NAN 1 1 NAN 2 2 NAN 3 3 NAN 4 0 0 5 0 1 6 0 2 7 0 3
  • Method 3 Indicate RV and RV_offset through signaling, where RV_offset is the default value or notified by high-level signaling.
  • RV_offset mod(RV1+RV_offset,4)
  • signaling control and DMRS port allocation are used to implement the indication method between different modes (SDM/FDM/TDM3/TDM4), so that each transmission mode can be switched; at the same time, the TCI code point is associated with the RV version
  • the dynamic switching between multiple transmission modes is realized in the SDM, FDM, and TDM transmission modes, including support for the fallback mode from multiple TRP to single TRP.
  • the corresponding relationship between TCI code point and RV can be configured, and dynamic switching between different transmission modes can be realized at the same time, so as to better improve system reliability and resource utilization rate.
  • FIG. 7 shows a schematic structural diagram of a transmission mode indicating device on the base station side provided by this embodiment.
  • the device includes: a signaling sending module 701, in which:
  • the above-mentioned signaling sending module 701 is configured to send signaling to the terminal UE, so that the UE determines the transmission mode between the UE and the base station according to the signaling;
  • the signaling carries the indication information of the transmission configuration indicating the TCI state, the indication information of the redundancy version RV, the indication information of the demodulation reference signal DMRS port, and the indication information of whether to carry the number of repeated transmissions.
  • the transmission mode indication device described in this embodiment can be used to execute the corresponding method embodiments described above, and its principles and technical effects are similar, and will not be repeated here.
  • FIG. 8 shows a schematic structural diagram of a terminal-side transmission mode indication device provided in this embodiment.
  • the device includes: a signaling receiving module 801, wherein:
  • the signaling receiving module 801 is configured to receive signaling sent by the base station, and determine the transmission mode between the UE and the base station according to the signaling;
  • the signaling carries the indication information of the transmission configuration indicating the TCI state, the indication information of the redundancy version RV, the indication information of the demodulation reference signal DMRS port, and the indication information of whether to carry the number of repeated transmissions.
  • the transmission mode indication device described in this embodiment can be used to execute the corresponding method embodiments described above, and its principles and technical effects are similar, and will not be repeated here.
  • the base station includes: a processor (processor) 901, a memory (memory) 902, and a bus 903;
  • the processor 901 and the memory 902 communicate with each other through the bus 903;
  • the processor 901 is configured to call program instructions in the memory 902 to execute the following methods:
  • the signaling carries the indication information of the transmission configuration indicating the TCI state, the indication information of the redundancy version RV, the indication information of the demodulation reference signal DMRS port, and the indication information of whether to carry the number of repeated transmissions.
  • the signaling also carries indication information of the transmission mode.
  • the signaling when the TCI state is the first preset value, the signaling also carries an indication of whether the physical downlink shared channel PDSCH currently transmitted by the UE adopts the time division multiplexing TDM transmission mode. information.
  • the indication information of whether the physical downlink shared channel PDSCH currently transmitted by the UE adopts the time division multiplexing TDM transmission mode specifically includes:
  • the PDSCH currently transmitted by the UE does not use the TDM transmission mode and the indication information of the DMRS port allocation information; or,
  • the PDSCH currently transmitted by the UE adopts the TDM transmission mode and the indication information of the number of repeated transmissions.
  • the number of repeated transmissions is indicated for K1 and K2 according to the K1 parameter set, the K2 parameter set carried in the RRC signaling, and the MAC-CE configuration of the media access control layer control unit; or,
  • the number of repeated transmissions is based on whether the high-level signaling is configured with K1 corresponding to TDM3, or whether the high-level signaling is configured with the K2 indication corresponding to TDM4.
  • the signaling specifically carries the space division multiplexing SDM/frequency division multiplexing FDM/FDM/FDM/FDM/FDM/FDM/FDM/FDM/FDM/FDM/FDM/FDM/FDM/FDM/FDM/FDM/FDM/FDM/FDM/FDM/FDM/FDM/FDM/FDM/FDM/FDM used by the current PDSCH configured by higher layers. Time division multiplexing within a time slot TDM3/time division multiplexing between time slots TDM4 transmission mode indication information.
  • the signaling carries the indication information of the number of repeated transmissions.
  • the base station and the UE respectively agree on the number of repeated transmissions of TDM3 in the time slot.
  • the signaling carries indication information of the number of repeated transmissions, which specifically includes:
  • the signaling carries the indication information of the number of repeated transmissions configured by the higher layer; or,
  • the signaling is DCI signaling, and the DCI signaling adds indication information of the number of repeated transmissions in the time domain resource allocation TDRA or RV code point.
  • the signaling is DCI signaling, and the DCI signaling specifically carries the indication information of the RV or RV combination configured by the higher layer that corresponds to the TCI state on a one-to-one basis; or,
  • the signaling specifically carries the indication information of the RV and/or RV combination corresponding to the RV code point that is predefined or configured by the higher layer; or,
  • the signaling specifically carries indication information of RV and RV_offset, where the RV_offset is the value of the starting position of the RV transmission base sequence configured by the higher layer; or,
  • the signaling specifically carries the indication information of the RV, and the default value of RV_offset is agreed on the base station and the UE side respectively.
  • the signaling specifically carries pre-defined or high-layer-configured indication information of the RV and/or RV combination corresponding to the RV code point
  • the RV code point includes the RV value used for the transmission mode of a single RV and the RV combination used for the transmission modes of multiple RVs;
  • the RV code point includes RV or RV_offset for a single TCI state, and RV combination or RV_offset combination for multiple TCI states.
  • the signaling carries indication information of the SDM/FDM/TDM transmission mode, indicate RV1 according to RV, and indicate RV2 according to RV1 and RV_offset;
  • RV1 and RV2 correspond to the transmission timing corresponding to the TCI state indicated in the TCI code point on a one-to-one basis;
  • the signaling carries the indication information of the TDM3/TDM4 transmission mode, indicate RV1 or RV_offset1 according to RV1, indicate RV2 according to RV1 and RV_offset, indicate RV_offset2 according to RV1 and RV_offset;
  • the RV sequence obtained according to RV_offset1 and RV_offset2 corresponds to the transmission timing corresponding to the TCI state indicated in the TCI code point in a one-to-one correspondence.
  • the base station described in this embodiment corresponds to the above-mentioned method for indicating the transmission mode on the base station side, and its principles and technical effects are similar, and will not be repeated here.
  • the base station includes: a processor (processor) 1001, a memory (memory) 1002, and a bus 1003;
  • processor processor
  • memory memory
  • bus 1003
  • the processor 1001 and the memory 1002 communicate with each other through the bus 1003;
  • the processor 1001 is configured to call program instructions in the memory 1002 to execute the following methods:
  • the signaling carries the indication information of the transmission configuration indicating the TCI state, the indication information of the redundancy version RV, the indication information of the demodulation reference signal DMRS port, and the indication information of whether to carry the number of repeated transmissions.
  • the signaling also carries indication information of the transmission mode.
  • the signaling when the TCI state is the first preset value, the signaling also carries an indication of whether the physical downlink shared channel PDSCH currently transmitted by the UE adopts the time division multiplexing TDM transmission mode. information.
  • the indication information of whether the physical downlink shared channel PDSCH currently transmitted by the UE adopts the time division multiplexing TDM transmission mode specifically includes:
  • the PDSCH currently transmitted by the UE does not use the TDM transmission mode and the indication information of the DMRS port allocation information; or,
  • the PDSCH currently transmitted by the UE adopts the TDM transmission mode and the indication information of the number of repeated transmissions.
  • the number of repeated transmissions is indicated for K1 and K2 according to the K1 parameter set, the K2 parameter set carried in the RRC signaling, and the MAC-CE configuration of the media access control layer control unit; or,
  • the number of repeated transmissions is based on whether the high-level signaling is configured with K1 corresponding to TDM3, or whether the high-level signaling is configured with the K2 indication corresponding to TDM4.
  • the signaling specifically carries the space division multiplexing SDM/frequency division multiplexing FDM/FDM/FDM/FDM/FDM/FDM/FDM/FDM/FDM/FDM/FDM/FDM/FDM/FDM/FDM/FDM/FDM/FDM/FDM/FDM/FDM/FDM/FDM/FDM/FDM/FDM used by the current PDSCH configured by higher layers. Time division multiplexing within a time slot TDM3/time division multiplexing between time slots TDM4 transmission mode indication information.
  • the signaling carries the indication information of the number of repeated transmissions.
  • the base station and the UE respectively agree on the number of repeated transmissions of TDM3 in the time slot.
  • the signaling carries indication information of the number of repeated transmissions, which specifically includes:
  • the signaling carries the indication information of the number of repeated transmissions configured by the higher layer; or,
  • the signaling is data center interconnection DCI signaling, and the DCI signaling adds indication information of the number of repeated transmissions in the time domain resource allocation TDRA or RV code point.
  • the signaling is DCI signaling, and the DCI signaling specifically carries the indication information of the RV or RV combination configured by the higher layer that corresponds to the TCI state on a one-to-one basis; or,
  • the signaling specifically carries the indication information of the RV and/or RV combination corresponding to the RV code point that is predefined or configured by the higher layer; or,
  • the signaling specifically carries indication information of RV and RV_offset, where the RV_offset is the value of the starting position of the RV transmission base sequence configured by the higher layer; or,
  • the signaling specifically carries the indication information of the RV, and the default value of RV_offset is agreed on the base station and the UE side respectively.
  • the signaling specifically carries pre-defined or high-layer-configured indication information of the RV and/or RV combination corresponding to the RV code point
  • the RV code point includes the RV value used for the transmission mode of a single RV and the RV combination used for the transmission modes of multiple RVs;
  • the RV code point includes RV or RV_offset for a single TCI state, and RV combination or RV_offset combination for multiple TCI states.
  • the signaling carries indication information of the SDM/FDM/TDM transmission mode, indicate RV1 according to RV, and indicate RV2 according to RV1 and RV_offset;
  • RV1 and RV2 have a one-to-one correspondence with the transmission timing corresponding to the TCI state indicated in the TCI code point;
  • the signaling carries the indication information of the TDM3/TDM4 transmission mode, indicate RV1 or RV_offset1 according to RV1, indicate RV2 according to RV1 and RV_offset, indicate RV_offset2 according to RV1 and RV_offset;
  • the RV sequence obtained according to RV_offset1 and RV_offset2 corresponds to the transmission timing corresponding to the TCI state indicated in the TCI code point in a one-to-one correspondence.
  • the terminal described in this embodiment corresponds to the foregoing method for indicating the transmission mode on the terminal side, and its principles and technical effects are similar, and will not be repeated here.
  • the computer program product includes a computer program stored on a non-transitory computer-readable storage medium.
  • the computer program includes program instructions. When the program instructions are executed by a computer, the computer The methods provided in the foregoing method embodiments can be executed.
  • This embodiment provides a non-transitory computer-readable storage medium that stores computer instructions that cause the computer to execute the methods provided in the foregoing method embodiments.
  • the device embodiments described above are merely illustrative.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in One location, or it can be distributed to multiple network units.
  • Some or all of the modules can be selected according to actual needs to achieve the objectives of the solutions of the embodiments. Based on the disclosure of this application, those of ordinary skill in the art can understand and implement the technical solutions disclosed in this application without creative work.
  • an embodiment of the present application provides a computer software product, which can be stored in a computer-readable storage medium, such as ROM/RAM, magnetic disk, optical disk, etc., and includes several instructions to make a computer
  • a device for example, a personal computer, a server, or a network device, etc. executes the method described in each embodiment or some parts of the embodiment.

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Abstract

本发明实施例公开了一种传输模式的指示方法、装置、基站、终端及存储介质，方法包括：向终端UE发送信令，以使UE根据所述信令确定UE与基站之间的传输模式；其中，所述信令携带有传输配置指示TCI状态的指示信息、冗余版本RV的指示信息和解调参考信号DMRS端口的指示信息，以及是否携带重复发送次数的指示信息；或，所述信令除了携带上述指示信息，还携带有传输模式的指示信息。本发明实施例通过在信令中携带指示信息，用于指示具体的传输模式，能够实现不同的传输模式间的动态切换，更好的提高***性能、可靠性和资源利用率。

Description

一种传输模式的指示方法、装置、基站、终端及存储介质
相关申请的交叉引用
本申请要求于2019年9月30日提交的申请号为201910943913.X，发明名称为“一种传输模式的指示方法、装置、基站、终端及存储介质”的中国专利申请的优先权，其通过引用方式全部并入本文。
技术领域
本发明涉及通信技术领域，具体涉及一种传输模式的指示方法、装置、基站、终端及存储介质。
背景技术
目前对于URLLC(Ultra Reliable Low Latency Communications，超高可靠低时延通信)业务的需求主要有几种典型应用场景，包括AR(Augmented Reality，增强现实)/VR(Virtual Reality，虚拟现实)的娱乐工业，工业自动化，远程驾驶在内的交通控制需求，以及电力分布控制需求等。这些URLLC业务对可靠性、时延和性能等方面有更高要求。在R16研究阶段，基于多TRP(Transmission Reception Point，传输接收点)/PANEL(面板)间的多点协作传输技术的应用，希望更好的提升URLLC的传输性能。
URLLC业务的QOS(Quality of Service，服务质量)质量要求非常高，很多业务要求误块率在10 -4以上。在多TRP/PANEL基站发送的场景下，各个TRP/PANEL到达某一UE的信道衰落情况可能差异较大，在高频情况下随着波长的大幅减小，该问题更为突出，信道衰落(fading)和遮挡(blocking)会使某个TRP传输质量严重降低甚至无法正常传输。为了保证URLLC支持各种场景的可靠性要求，需要更为有效的传输调度策略来变化保证。
但是目前还没有在URLLC业务下如何指示不同的传输模式的方法。
发明内容
由于现有方法存在上述问题，本发明实施例提出一种传输模式的指示 方法、装置、基站、终端及存储介质。
第一方面，本发明实施例提出一种传输模式的指示方法，包括：
向终端UE发送信令，以使UE根据所述信令确定UE与基站之间的传输模式；
其中，所述信令携带有传输配置指示TCI状态的指示信息、冗余版本RV的指示信息和解调参考信号DMRS端口的指示信息，以及是否携带重复发送次数的指示信息。
第二方面，本发明实施例还提出一种传输模式的指示方法，包括：
接收基站发送的信令，并根据所述信令确定UE与基站之间的传输模式；
其中，所述信令携带有传输配置指示TCI状态的指示信息、冗余版本RV的指示信息和解调参考信号DMRS端口的指示信息，以及是否携带重复发送次数的指示信息。
第三方面，本发明实施例提出一种传输模式的指示装置，包括：
信令发送模块，用于向终端UE发送信令，以使UE根据所述信令确定UE与基站之间的传输模式；
其中，所述信令携带有传输配置指示TCI状态的指示信息、冗余版本RV的指示信息和解调参考信号DMRS端口的指示信息，以及是否携带重复发送次数的指示信息。
第四方面，本发明实施例还提出一种传输模式的指示装置，包括：
信令接收模块，用于接收基站发送的信令，并根据所述信令确定UE与基站之间的传输模式；
其中，所述信令携带有传输配置指示TCI状态的指示信息、冗余版本RV的指示信息和解调参考信号DMRS端口的指示信息，以及是否携带重复发送次数的指示信息。
第五方面，本发明实施例提出一种基站，包括存储器、处理器及存储在存储器上并可在处理器上运行的计算机程序，所述处理器执行所述程序时执行如下步骤：
向终端UE发送信令，以使UE根据所述信令确定UE与基站之间的传输模式；
其中，所述信令携带有传输配置指示TCI状态的指示信息、冗余版本RV的指示信息和解调参考信号DMRS端口的指示信息，以及是否携带重复发送次数的指示信息。
第六方面，本发明实施例提出一种终端，包括存储器、处理器及存储在存储器上并可在处理器上运行的计算机程序，所述处理器执行所述程序时执行如下步骤：
接收基站发送的信令，并根据所述信令确定UE与基站之间的传输模式；
其中，所述信令携带有传输配置指示TCI状态的指示信息、冗余版本RV的指示信息和解调参考信号DMRS端口的指示信息，以及是否携带重复发送次数的指示信息。
第七方面，本发明实施例提出一种非暂态计算机可读存储介质，所述非暂态计算机可读存储介质存储计算机程序，所述计算机程序使所述计算机执行上述传输模式的指示方法。
第八方面，本发明实施例还提出一种非暂态计算机可读存储介质，所述非暂态计算机可读存储介质存储计算机程序，所述计算机程序使所述计算机执行上述传输模式的指示方法。
由上述技术方案可知，本发明实施例通过在信令中携带指示信息，用于指示具体的传输模式，能够实现不同的传输模式间的动态切换，更好的提高***性能、可靠性和资源利用率。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些图获得其他的附图。
图1为现有技术提供的单一RV的传输模式的流程示意图；
图2为现有技术提供的多RV的传输模式的流程示意图；
图3为本发明一实施例提供的基站侧的传输模式的指示方法的流程示意图；
图4为本发明一实施例提供的终端侧的传输模式的指示方法的流程示 意图；
图5为本发明一实施例提供的一种传输模式判断的流程示意图；
图6为本发明另一实施例提供的一种传输模式判断的流程示意图；
图7为本发明一实施例提供的基站侧的传输模式的指示装置的结构示意图；
图8为本发明一实施例提供的终端侧的传输模式的指示装置的结构示意图；
图9为本发明一实施例提供的基站的逻辑框图；
图10为本发明一实施例提供的基站的逻辑框图。
具体实施方式
下面结合附图，对本发明的具体实施方式作进一步描述。以下实施例仅用于更加清楚地说明本发明的技术方案，而不能以此来限制本发明的保护范围。
具体地，在R16研究阶段，基于多TRP/PANEL间的多点协作传输技术主要包括以下两种：
1)multi-TRP/panel传输技术
基站多TRP/PANEL的应用主要为了改善小区边缘的覆盖，在服务区内提供更为均衡的服务质量，用不同的方式在多个TRP/PANEL间协作传输数据。从网络形态角度考虑，以大量的分布式接入点加基带集中处理的方式进行网络部署将更加有利于提供均衡的用户体验速率，并且显著的降低越区切换带来的时延和信令开销。在高频段，每个TRP的天线阵可以被分为若干相对独立的天线面板，整个阵面的形态和端口数都可以随部署场景与业务需求进行灵活的调整。而天线面板或TRP之间也可以由光纤连接，方便进行更为灵活的分布式部署。利用多个TRP或面板之间的协作，从多个角度的多个波束进行传输/接收，可以更好的克服各种遮挡/阻挡效应，保障链路连接的鲁棒性，适合URLLC业务提升传输质量和满足可靠性要求。
2)基于多点协作传输的URLLC增强方案
目前采用的基于多点协作传输的URLLC增强方案包括以下几种：
方案1(SDM，Spatial Division Multiplexing，空分复用)：在一个slot 内重叠的时频资源上，每个传输机会(transmission occasion，实际上指一个TRP在一份资源上发送的信号)对应于所关联的一个TCI state(Transmission Configuration Indicator state，传输配置指示状态)以及一组DMRS(Demodulation reference signal，解调参考信号)端口的一组数据层。
方案1a：支持单一RV(Redundancy Version，冗余版本)传输模式。即同一个TB的数据的不同层通过不同的TRP同时传输，并映射在相同的时频资源上。其流程如图1所示。
方案1b：支持多RV的传输模式。即同一个TB的不同RV版本的数据通过不同层在不同的TRP上独立传输，并映射在相同的时频资源上，其流程如图2所示。
方案2(FDM，Frequency Division Multiplexing，频分复用)：在一个slot内，每一份频域资源都关联到一个TCI state，各份频域资源之间互不重叠。
方案2a:支持单一RV传输模式。即同一个TB的数据通过不同的TRP同时传输并映射在互不重叠的不同的频域资源上，其流程如图1所示。
方案2b:支持多RV传输模式。即同一个TB的不同RV版本通过不同的TRP独立传输，并映射在互不重叠的不同的频域资源上，其流程如图2所示。
不管是SDM方案还是FDM方案，对于单一RV传输模式，每个TRP上都传输该RV对应的编码块的部分数据，不是完整的编码块，因此每个TRP上的接收数据均不能单独解码，只有完整接收了不同层的来自不同TRP的数据后才能解码。对于多RV传输模式，不同TRP上传输同一TB的不同RV版本的编码块，根据UE能力接收端可以对不同的RV版本的译码前的编码块数据进行合并后译码。因此对应同样的时频资源分配来比较，单一RV方案的编码速率较低，编码增益较高。多RV传输的好处在于每个TRP上传输的数据可以单独解码也可以合并解码通过合并增益来抵消由编码速率提高带来的影响。
方案3(mini-slot级别的TDM3)：在一个slot内，每一份时域资源都关联到一个TCI state，各份时域资源之间互不重叠。其中一份时域资源 指一组(每组中可以只有一个)mini slot。其中TDM(Time Division Multiplexing，时分复用)包括TDM3(时隙内的时分复用)和TDM4(时隙间的时分复用)。
方案4(slot级别的TDM4)：每一份时域资源都关联到一个TCI state，各份时域资源之间互不重叠。其中一份时域资源指一组(每组中可以只有一个)slot。
本发明在多TRP/PANEL间协作传输时，利用各种控制信令的配置支持可靠性传输方案URLLC业务，提供了一种在不同传输模式下切换和调度的方法。
当配置对时延要求较高的URLLC业务时，一般会使用SDM或者FDM方式进行传输。而对于时延要求较低的URLLC业务或者终端能力接收受限时，可以采用TDM的方式进行传输。
当基于多TRP的可靠性传输URLLC通过不同的空域/频域/时域资源的复用方案(SDM/FDM/TDM)实现时，网络侧采用以下方式来具体指定该次传输的传输模式，终端侧也按照同样方法来确定传输模式：
各类传输模式的主要参数配置区别如表1所示。
表1.URLLC传输模式
Figure PCTCN2020098427-appb-000001
Figure PCTCN2020098427-appb-000002
网络通过信令TCI code point的动态指示来区分用于在当前传输的TCI state数目，以此判断为单TRP传输模式还是多TRP协作传输模式，并通过配置TCI code point支持在单TRP传输模式和多点TRP协作传输之间的动态切换。
图3示出了本实施例提供了一种基站侧的传输模式的指示方法的流程示意图，包括：
S301、向终端UE发送信令，以使UE根据所述信令确定UE与基站之间的传输模式；
其中，所述信令携带有传输配置指示TCI状态的指示信息、冗余版本RV的指示信息和解调参考信号DMRS端口的指示信息，以及是否携带重复发送次数的指示信息。
具体地，对于基站侧，在配置基站和UE间的传输模式后，向UE发送携带了指示信息的信令，指示信息至少包括TCI状态、RV和DMRS端口，可以携带重复发送次数，也可以不携带。
本发明实施例通过在信令中携带指示信息，用于指示具体的传输模式，能够实现不同的传输模式间的动态切换，更好的提高***性能、可靠性和资源利用率。
进一步地，在上述方法实施例的基础上，所述信令还携带有传输模式的指示信息。
需要说明的是，当所述信令中仅携带TCI状态、RV以及DMRS端口的指示信息以及是否携带发送重复传输次数，通过各具体的参数能够确定基站与UE间如表1所示的传输模式；当所述信令中携带有传输模式的指 示信息时，能够结合该信令中携带的TCI状态、RV、DMRS端口的指示信息，以及是否携带发送重复传输次数，更便于确定基站与UE间如表1所示的传输模式。
进一步地，在上述方法实施例的基础上，当所述TCI状态为第一预设值时，所述信令还携带有UE当前传输的物理下行共享信道PDSCH是否采用时分复用TDM传输模式的指示信息。
具体地，如表1所示，TCI状态包括两种：仅1个状态以及2个状态，当第一预设值为2个时，即TCI状态为2个状态时，所述信令携带有UE当前传输的PDSCH是否采用TDM传输模式的指示信息。
当TCI state为1个时，则继续判断：
如果信令同时配置了传输的重复发送次数(K1或者K2)，则需要按照单TRP传输模式在slot内重复发送K1次或者在slot间重复发送K2次；
如果没有配置传输的重复发送次数，则按照TCI state指示的TRP作为传输点进行PDSCH的发送。
当TCI state为2个时，则需要通过其他指示来得到PDSCH的复用方式，即表1中SDM-a/SDM-b/FDM-a/FDM-b/TDM3/TDM4中的一种。
进一步地，所述UE当前传输的物理下行共享信道PDSCH是否采用时分复用TDM传输模式的指示信息，具体包括：
UE当前传输的PDSCH不采用TDM传输模式以及DMRS端口的分配信息的指示信息；或，
当所述信令为无线资源控制RRC信令时，UE当前传输的PDSCH采用TDM传输模式以及重复发送次数的指示信息。
进一步地，当所述信令携带有重复发送次数的指示信息时，
所述重复发送次数根据所述RRC信令携带的K1参数集合、K2参数集合以及MAC-CE(Media Access Control Control Unit，媒体接入控制层控制单元)配置的对于K1和K2指示；或，
所述重复发送次数根据高层信令是否配置有TDM3对应的K1，或，高层信令是否配置有TDM4对应的K2指示。
具体来说，当TCI state为2个时，则需要通过其他指示来得到PDSCH的复用方式，即表1中SDM-a/SDM-b/FDM-a/FDM-b/TDM3/TDM4中的一 种。
网络通过以下信令指示来区分多TRP传输模式中的某一具体复用方式，即SDM/FDM/TDM3/TDM4中的一种。
网络通过信令指示UE当前传输的PDSCH信道是否采用slot/mini-slot aggregation的TDM传输模式，以及具体采用哪种TDM传输模式(TDM3或者TDM4)。如果不采用TDM传输模式，则为SDM或者FDM传输模式，即为SDM/FDM方式还是TDM3或者TDM4。
其中，对于TDM 3的重复发送次数配置可以由网络配置为K1次，对于TDM 4的重复发送次数配置为K2次。
例如，通过下面方式配置实现，
RRC配置+MAC-CE激活：
通过RRC信令配置了K1集合和K2集合，例如K1集合包括{-1}，{2}，{4}，K2集合包括{-1}，{2}，{4}，{8}，其中类似{-1}可以指示一个无效次数代表不配置，在PDSCH动态调度传输开始前通过MAC-CE进一步选择了K1＝{-1}，K2＝{8}，则表示该次PDSCH传输采用TDM4传输模式，重复传输次数为8次。
如果通过MAC-CE配置选择对应TDM3对应的K1选择为{-1}，同时配置TDM4对应的K2选择为{-1}，则这时对应的PDSCH传输则为采用SDM或者FDM传输模式。
通过RRC配置的示例如下：
通过RRC信令不配置TDM3对应的K1，同时配置TDM4对应的K2＝8，这样通知UE当前传输模式为TDM4且传输次数为8。
如果通过RRC信令不配置TDM3对应的K1，同时不配置TDM4对应的K2，则这时对应的PDSCH传输则采用SDM或者FDM传输方式。
进一步地，在上述方法实施例的基础上，当所述TCI状态为第二预设值时，所述信令具体携带有高层配置的当前PDSCH采用的空分复用SDM/频分复用FDM/时隙内的时分复用TDM3/时隙间的时分复用TDM4传输模式的指示信息。
需要说明的是，本实施例中第二预设值与第一预设值可以为相同，即均可以为2个，即TCI状态为2个状态。
进一步地，当所述信令携带有TDM3/TDM4传输模式的指示信息时，
所述信令携带有重复发送次数的指示信息；或，
在基站和UE侧分别约定TDM3在时隙内的重复发送次数。
进一步地，在上述方法实施例的基础上，所述信令携带有重复发送次数的指示信息，具体包括：
所述信令携带有高层配置的重复发送次数的指示信息；或，
所述信令为DCI信令，所述DCI信令在时域资源分配TDRA或RV码点中增加重复发送次数的指示信息。
具体地，网络通过高层信令直接指示当前PDSCH传输的复用方式为SDM/FDM/TDM3/TDM4中的一种，以此实现这几种传输模式之间的切换。
如果传输模式为TDM3/TDM4，则网络通过信令同时配置传输的重复发送次数(K1或者K2)。
该重复发送次数可以通过高层信令方式指示；
可以通过DCI信令方式动态指示，例如，可以通过在TDRA或在RV code point中增加重复发送次数的指示；
也可以通过其他隐式方式得到，例如，直接约定TDM3在时隙内的重复发送次数等。
进一步地，在上述方法实施例的基础上，
所述信令为DCI信令，所述DCI信令具体携带有高层配置的与TCI状态一一对应的RV或RV组合的指示信息；或，
所述信令具体携带有预定义或高层配置的与RV码点对应的RV和/或RV组合的指示信息；或，
所述信令具体携带有RV和RV_offset的指示信息，所述RV_offset为高层配置的RV传输基序列的起始位置的值；或，
所述信令具体携带有RV的指示信息，并在基站和UE侧分别约定RV_offset的默认值。
进一步地，当所述信令具体携带有预定义或高层配置的与RV码点对应的RV和/或RV组合的指示信息时，
若所述信令携带有SDM/FDM传输模式的指示信息，则RV码点包括用于单个RV的传输模式的RV值，以及用于多个RV的传输模式的RV 组合；
若所述信令携带有TDM3/TDM4传输模式的指示信息，则RV码点包括用于单个TCI状态的RV或RV_offset，以及用于多个TCI状态的RV组合或RV_offset组合。
进一步地，在上述方法实施例的基础上，当所述信令携带有RV和RV_offset的指示信息时，
若所述信令携带有SDM/FDM/TDM传输模式的指示信息，则根据RV指示RV1，根据RV1和RV_offset指示RV2；
其中，RV1、RV2与TCI码点中指示的TCI状态对应的发送时机一一对应；
若所述信令携带有TDM3/TDM4传输模式的指示信息，则根据RV1指示RV1或RV_offset1，根据RV1和RV_offset指示RV2，根据RV1和RV_offset指示RV_offset2；
其中，根据RV_offset1和RV_offset2得到的RV序列与TCI码点中指示的TCI状态对应的发送时机一一对应。
具体地，对于RV或者RV组合的指示方法有以下3种方法：
方法1：由高层分别在DCI信令中配置对应不同TCI state的RV(或RV_offset)或可用的RV组合(或RV_offset组合)，并和TCI state一一对应。
方法2：预定义或者由高层配置可用的RV(或RV offset)和/或可用的RV组合(或RV offset组合)，并对应到不同的RV code point。
基站通过DCI信令动态指示RV code point，对应到一个RV或者RV序列起始位置RV_offset，或者RV配置{RV1,RV2}或者RV起始位置RV_offset组合{RV_offset1,RV_offset2}，并和TCI code point中指示的TCI state一一对应。
对于SDM/FDM传输模式，这里指示的RV code point包括预定义或者高层信令通知的可用于单个RV的传输模式(SDM-a/FDM-a/单TRP)的RV值以及用于多个RV的传输模式(SDM-b/FDM-b)的RV组合。
对于TDM3或者TDM4传输模式，这里指示的RV code point包含预定义或者高层信令通知的可用于单个TCI state的RV或RV传输基序列的 起始位置RV_offset以及用于多个TCI state的RV组合或RV传输基序列的起始位置RV_offset组合。
方法3：通过信令指示RV和RV_offset,RV_offset为默认值或者高层信令通知。
对于SDM/FDM/TDM传输模式，分别得到一个RV或者一组RV配置{RV1,RV2}，RV1＝RV，同时应用RV2＝mod(RV1+RV_offset,4)得到RV2,并和TCI code point中指示的TCI state对应的发送时机一一对应。例如：当配置RV_offset为0时，支持多RV的传输方案且两个对应TCI code point中的两个TCI state的RV配置为RV1＝RV2。如果RV_offset本身取值范围不在0-3范围内，如RV_offset＝-1，则表示只配置单个RV。
对于TDM-3/TDM-4传输模式，也可使RV_offset1＝RV1，同时应用RV_offset2＝mod(RV1+RV_offset,4)得到RV_offset2，分别使用该起始位置得到的RV序列和TCI code point中指示的TCI state对应的发送时机一一对应。例如：当配置RV_offset为0时，支持多RV的传输方案且两个对应TCI code point中的两个TCI state的RV配置为RV_offset1＝RV_offset2。如果RV_offset本身取值范围不在0-3范围内，如RV_offset＝-1，则表示只配置单个RV_offset1。
本实施例在基于多点协作的SDM/FDM/TDM可靠性增强方案中，可以通过配置TCI code point与RV的对应关系，同时实现不同的传输模式间的动态切换，更好地提高***可靠性和资源利用率。
图4示出了本实施例提供了一种终端侧的传输模式的指示方法的流程示意图，包括：
S401、接收基站发送的信令，并根据所述信令确定UE与基站之间的传输模式；
其中，所述信令携带有传输配置指示TCI状态的指示信息、冗余版本RV的指示信息和解调参考信号DMRS端口的指示信息，以及是否携带重复发送次数的指示信息。
进一步地，所述信令还携带有传输模式的指示信息。
进一步地，当所述TCI状态为第一预设值时，所述信令还携带有UE当前传输的物理下行共享信道PDSCH是否采用时分复用TDM传输模式 的指示信息。
进一步地，所述UE当前传输的物理下行共享信道PDSCH是否采用时分复用TDM传输模式的指示信息，具体包括：
UE当前传输的PDSCH不采用TDM传输模式以及DMRS端口的分配信息的指示信息；或，
当所述信令为无线资源控制RRC信令时，UE当前传输的PDSCH采用TDM传输模式以及重复发送次数的指示信息。
进一步地，
所述重复发送次数根据所述RRC信令携带的K1参数集合、K2参数集合以及媒体接入控制层控制单元MAC-CE配置的对于K1和K2指示；或，
所述重复发送次数根据高层信令是否配置有TDM3对应的K1，或，高层信令是否配置有TDM4对应的K2指示。
进一步地，当所述TCI状态为第二预设值时，所述信令具体携带有高层配置的当前PDSCH采用的空分复用SDM/频分复用FDM/时隙内的时分复用TDM3/时隙间的时分复用TDM4传输模式的指示信息。
进一步地，当所述信令携带有TDM3/TDM4传输模式的指示信息时，
所述信令携带有重复发送次数的指示信息；或，
在基站和UE侧分别约定TDM3在时隙内的重复发送次数。
进一步地，所述信令携带有重复发送次数的指示信息，具体包括：
所述信令携带有高层配置的重复发送次数的指示信息；或，
所述信令为DCI信令，所述DCI信令在时域资源分配TDRA或RV码点中增加重复发送次数的指示信息。
进一步地，
所述信令为DCI信令，所述DCI信令具体携带有高层配置的与TCI状态一一对应的RV或RV组合的指示信息；或，
所述信令具体携带有预定义或高层配置的与RV码点对应的RV和/或RV组合的指示信息；或，
所述信令具体携带有RV和RV_offset的指示信息，所述RV_offset为高层配置的RV传输基序列的起始位置的值；或，
所述信令具体携带有RV的指示信息，并在基站和UE侧分别约定RV_offset的默认值。
进一步地，当所述信令具体携带有预定义或高层配置的与RV码点对应的RV和/或RV组合的指示信息时，
若所述信令携带有SDM/FDM传输模式的指示信息，则RV码点包括用于单个RV的传输模式的RV值，以及用于多个RV的传输模式的RV组合；
若所述信令携带有TDM3/TDM4传输模式的指示信息，则RV码点包括用于单个TCI状态的RV或RV_offset，以及用于多个TCI状态的RV组合或RV_offset组合。
进一步地，当所述信令携带有RV和RV_offset的指示信息时，
若所述信令携带有SDM/FDM/TDM传输模式的指示信息，则根据RV指示RV1，根据RV1和RV_offset指示RV2；
其中，RV1、RV2与TCI码点中指示的TCI状态对应的发送时机一一对应；
若所述信令携带有TDM3/TDM4传输模式的指示信息，则根据RV1指示RV1或RV_offset1，根据RV1和RV_offset指示RV2，根据RV1和RV_offset指示RV_offset2；
其中，根据RV_offset1和RV_offset2得到的RV序列与TCI码点中指示的TCI状态对应的发送时机一一对应。
本实施例所述的终端侧的传输模式的指示方法与上述基站侧的传输模式的指示方法对应，其原理和技术效果类似。
具体地，当UE接收到基站发送的信令后，根据该信令携带的指示信息进行判断，如图5所示，当TCI state为1个时，则继续判断：
如果信令同时配置了传输的重复发送次数(K1或者K2)，则需要按照单TRP传输模式在slot内重复发送K1次或者在slot间重复发送K2次；
如果没有配置传输的重复发送次数，则按照TCI state指示的TRP作为传输点进行PDSCH的发送。
当TCI state为2个时，则需要通过其他指示来得到PDSCH的复用方式，即表1中SDM-a/SDM-b/FDM-a/FDM-b/TDM3/TDM4中的一种。
网络通过以下信令指示来区分多TRP传输模式中的某一具体复用方式，即SDM/FDM/TDM3/TDM4中的一种，包括方法1和方法2：
方法1：
网络通过信令指示UE当前传输的PDSCH信道是否采用slot/mini-slot aggregation的TDM传输模式，以及具体采用哪种TDM传输模式(TDM3或者TDM4)。如果不采用TDM传输模式，则为SDM或者FDM传输模式，即为SDM/FDM方式还是TDM3或者TDM4。
其中，对于TDM 3的重复发送次数配置可以由网络配置为K1次,对于TDM 4的重复发送次数配置为K2次。
例如，通过RRC配置的方式实现，如图6所示，具体包括：
RRC配置+MAC-CE激活：
通过RRC信令配置了K1集合和K2集合，例如K1集合包括{-1}，{2}，{4}，K2集合包括{-1}，{2}，{4}，{8}，其中类似{-1}可以指示一个无效次数代表不配置，在PDSCH动态调度传输开始前通过MAC-CE进一步选择了K1＝{-1}，K2＝{8}，则表示该次PDSCH传输采用TDM4传输模式，重复传输次数为8次。
如果通过MAC-CE配置选择对应TDM3对应的K1选择为{-1}，同时配置TDM4对应的K2选择为{-1}，则这时对应的PDSCH传输则为采用SDM或者FDM传输模式。
RRC配置：
通过RRC信令不配置TDM3对应的K1，同时配置TDM4对应的K2＝8，这样通知UE当前传输模式为TDM4且传输次数为8。
如果通过RRC信令不配置TDM3对应的K1，同时不配置TDM4对应的K2，则这时对应的PDSCH传输则采用SDM或者FDM传输模式。
如果不是TDM3/4方式，网络通过信令指示的DMRS端口分配信息进一步区分传输为SDM还是FDM复用方式。
如果DMRS端口配置分别属于两个CDM组，则为SDM传输模式，否则为FDM传输。
举例来说，当DMRS端口信息指示为{0,2}时，则确认该传输模式对应为SDM。类似当DMRS端口信息指示为{0}时，在确认不是TDM方式 的情况下，则确认该传输模式为FDM。
方法2：
网络通过高层信令直接指示当前PDSCH传输的复用方式为SDM/FDM/TDM3/TDM4中的一种，以此实现这几种传输模式之间的切换。
如果传输模式为TDM3/TDM4，则网络通过信令同时配置传输的重复发送次数(K1或者K2)。
该重复发送次数可以通过高层信令方式指示；
可以通过DCI信令方式动态指示，例如，可以通过在TDRA或在RV code point中增加重复发送次数的指示；
也可以通过其他隐式方式得到，例如，直接约定TDM3在时隙内的重复发送次数等。
另外，网络除了通过信令指示来区分多TRP传输模式中的某一具体复用方式，网络还通过信令指示UE该PDSCH在TRP协作发送中可能使用的RV(或RV序列起始值RV offset)或可用的RV组合(或RV序列起始值RV offset组合)。
对于多TRP协作的SDM或FDM传输模式，RV配置指示单个RV或者RV组合，即a和b的不同复用方式：
如果RV配置指示为单个RV，则指示为SDM-a/FDM-a传输模式；
如果RV配置指示为RV组合，则指示为SDM-b/FDM-b传输模式。该RV组合包含的两个RV值可以相同或者不同，和TCI state一一对应。
对于多TRP协作的TDM-3或TDM-4传输模式，RV配置指示为RV组合或者RV offset组合，则各个TCI state对应的不同发送时机应用不同的RV或者不同RV offset对应的RV序列值，且该配置和TCI state一一对应。
对于单TRP回退的传输模式，RV配置指示单个RV或者RV序列起始值RV offset。
对于RV或者RV组合的指示方法有以下3种方法：
方法1：由高层分别在DCI信令中配置对应不同TCI state的RV(或RV_offset)或可用的RV组合(或RV_offset组合)，并和TCI state一一对应。
方法2：预定义或者由高层配置可用的RV(或RV offset)和/或可用的RV组合(或RV offset组合)，并对应到不同的RV code point。
基站通过DCI信令动态指示RV code point，对应到一个RV或者RV序列起始位置RV_offset，或者RV配置{RV1,RV2}或者RV起始位置RV_offset组合{RV_offset1,RV_offset2}，并和TCI code point中指示的TCI state一一对应。
对于SDM/FDM传输模式，这里指示的RV code point包括预定义或者高层信令通知的可用于单个RV的传输模式(SDM-a/FDM-a/单TRP)的RV值以及用于多个RV的传输模式(SDM-b/FDM-b)的RV组合。
对于TDM3或者TDM4传输模式，这里指示的RV code point包含预定义或者高层信令通知的可用于单个TCI state的RV或RV传输基序列的起始位置RV_offset以及用于多个TCI state的RV组合或RV传输基序列的起始位置RV_offset组合。
例如，定义下面表格2为可用RV集合，当RV code point为0-3时，则表明本次传输为单个TRP传输模式或者单个RV的多TRP传输模式(SDM-a/FDM-a/TDM)；当RV code point等于4时，支持多个RV相同的多TRP传输模式(SDM-b/FDM-b/TDM)；当RV code point为大于4时，支持多个RV不同的多TRP传输(SDM-b/FDM-b/TDM)。表格3则是由基站配置的简化的选项，但也需要上述分类，在一定的场景选择下配置也可以满足性能要求，相对表3可以节约信令比特数。
表2.多RV集合
RV index RV1/RV_offset1 RV2/RV_offset2
0 0 NAN
1 1 NAN
2 2 NAN
3 3 NAN
4 0 0
5 0 1
6 0 2
7 0 3
8 1 0
9 2 0
10 3 0
11 3 3
… … …
15 RESERVED RESERVED
表3.多RV集合
RV index RV1 RV2
0 0 NAN
1 0 0
2 0 2
3 0 3
方法3：通过信令指示RV和RV_offset,RV_offset为默认值或者高层信令通知。
对于SDM/FDM/TDM传输模式，分别得到一个RV或者一组RV配置{RV1,RV2}，RV1＝RV，同时应用RV2＝mod(RV1+RV_offset,4)得到RV2,并和TCI code point中指示的TCI state对应的发送时机一一对应。例如：当配置RV_offset为0时，支持多RV的传输方案且两个对应TCI code point中的两个TCI state的RV配置为RV1＝RV2。如果RV_offset本身取值范围不在0-3范围内，如RV_offset＝-1，则表示只配置单个RV。
对于TDM-3/TDM-4传输模式，也可使RV_offset1＝RV1，同时应用RV_offset2＝mod(RV1+RV_offset,4)得到RV_offset2，分别使用该起始位置得到的RV序列和TCI code point中指示的TCI state对应的发送时机一一对应。例如：当配置RV_offset为0时，支持多RV的传输方案且两个对应TCI code point中的两个TCI state的RV配置为RV_offset1＝RV_offset2。如果RV_offset本身取值范围不在0-3范围内， 如RV_offset＝-1，则表示只配置单个RV_offset1。
本实施例通过信令控制和DMRS端口分配方式来实现不同模式(SDM/FDM/TDM3/TDM4)间的指示方法，使得各个传输模式之间可以实现切换；同时通过TCI code point与RV版本相关联的设计，通过RV的配置和TCI code point的联合指示实现在SDM、FDM、TDM传输模式内实现多种传输模式间的动态切换，包括支持从多TRP到单TRP的回退模式。在基于多点协作的SDM/FDM/TDM可靠性增强方案中，可以通过配置TCI code point与RV的对应关系，同时实现不同的传输模式间的动态切换，更好地提高***可靠性和资源利用率。
图7示出了本实施例提供的基站侧的传输模式的指示装置的结构示意图，所述装置包括：信令发送模块701，其中：
上述信令发送模块701用于向终端UE发送信令，以使UE根据所述信令确定UE与基站之间的传输模式；
其中，所述信令携带有传输配置指示TCI状态的指示信息、冗余版本RV的指示信息和解调参考信号DMRS端口的指示信息，以及是否携带重复发送次数的指示信息。
本实施例所述的传输模式的指示装置可以用于执行上述对应方法实施例，其原理和技术效果类似，此处不再赘述。
图8示出了本实施例提供的终端侧的传输模式的指示装置的结构示意图，所述装置包括：信令接收模块801，其中：
所述信令接收模块801用于接收基站发送的信令，并根据所述信令确定UE与基站之间的传输模式；
其中，所述信令携带有传输配置指示TCI状态的指示信息、冗余版本RV的指示信息和解调参考信号DMRS端口的指示信息，以及是否携带重复发送次数的指示信息。
本实施例所述的传输模式的指示装置可以用于执行上述对应方法实施例，其原理和技术效果类似，此处不再赘述。
参照图9，所述基站，包括：处理器(processor)901、存储器(memory)902和总线903；
其中，
所述处理器901和存储器902通过所述总线903完成相互间的通信；
所述处理器901用于调用所述存储器902中的程序指令，以执行以下方法：
向终端UE发送信令，以使UE根据所述信令确定UE与基站之间的传输模式；
其中，所述信令携带有传输配置指示TCI状态的指示信息、冗余版本RV的指示信息和解调参考信号DMRS端口的指示信息，以及是否携带重复发送次数的指示信息。
进一步地，在上述实施例的基础上，所述信令还携带有传输模式的指示信息。
进一步地，在上述实施例的基础上，当所述TCI状态为第一预设值时，所述信令还携带有UE当前传输的物理下行共享信道PDSCH是否采用时分复用TDM传输模式的指示信息。
进一步地，在上述实施例的基础上，所述UE当前传输的物理下行共享信道PDSCH是否采用时分复用TDM传输模式的指示信息，具体包括：
UE当前传输的PDSCH不采用TDM传输模式以及DMRS端口的分配信息的指示信息；或，
当所述信令为无线资源控制RRC信令时，UE当前传输的PDSCH采用TDM传输模式以及重复发送次数的指示信息。
进一步地，在上述实施例的基础上，
所述重复发送次数根据所述RRC信令携带的K1参数集合、K2参数集合以及媒体接入控制层控制单元MAC-CE配置的对于K1和K2指示；或，
所述重复发送次数根据高层信令是否配置有TDM3对应的K1，或，高层信令是否配置有TDM4对应的K2指示。
进一步地，在上述实施例的基础上，当所述TCI状态为第二预设值时，所述信令具体携带有高层配置的当前PDSCH采用的空分复用SDM/频分复用FDM/时隙内的时分复用TDM3/时隙间的时分复用TDM4传输模式的指示信息。
进一步地，在上述实施例的基础上，当所述信令携带有TDM3/TDM4 传输模式的指示信息时，
所述信令携带有重复发送次数的指示信息；或，
在基站和UE侧分别约定TDM3在时隙内的重复发送次数。
进一步地，在上述实施例的基础上，所述信令携带有重复发送次数的指示信息，具体包括：
所述信令携带有高层配置的重复发送次数的指示信息；或，
所述信令为DCI信令，所述DCI信令在时域资源分配TDRA或RV码点中增加重复发送次数的指示信息。
进一步地，在上述实施例的基础上，
所述信令为DCI信令，所述DCI信令具体携带有高层配置的与TCI状态一一对应的RV或RV组合的指示信息；或，
所述信令具体携带有预定义或高层配置的与RV码点对应的RV和/或RV组合的指示信息；或，
所述信令具体携带有RV和RV_offset的指示信息，所述RV_offset为高层配置的RV传输基序列的起始位置的值；或，
所述信令具体携带有RV的指示信息，并在基站和UE侧分别约定RV_offset的默认值。
进一步地，在上述实施例的基础上，当所述信令具体携带有预定义或高层配置的与RV码点对应的RV和/或RV组合的指示信息时，
若所述信令携带有SDM/FDM传输模式的指示信息，则RV码点包括用于单个RV的传输模式的RV值，以及用于多个RV的传输模式的RV组合；
若所述信令携带有TDM3/TDM4传输模式的指示信息，则RV码点包括用于单个TCI状态的RV或RV_offset，以及用于多个TCI状态的RV组合或RV_offset组合。
进一步地，在上述实施例的基础上，当所述信令携带有RV和RV_offset的指示信息时，
若所述信令携带有SDM/FDM/TDM传输模式的指示信息，则根据RV指示RV1，根据RV1和RV_offset指示RV2；
其中，RV1、RV2与TCI码点中指示的TCI状态对应的发送时机一一 对应；
若所述信令携带有TDM3/TDM4传输模式的指示信息，则根据RV1指示RV1或RV_offset1，根据RV1和RV_offset指示RV2，根据RV1和RV_offset指示RV_offset2；
其中，根据RV_offset1和RV_offset2得到的RV序列与TCI码点中指示的TCI状态对应的发送时机一一对应。
本实施例所述的基站与上述基站侧的传输模式的指示方法对应，其原理和技术效果类似，此处不再赘述。
参照图10，所述基站，包括：处理器(processor)1001、存储器(memory)1002和总线1003；
其中，
所述处理器1001和存储器1002通过所述总线1003完成相互间的通信；
所述处理器1001用于调用所述存储器1002中的程序指令，以执行以下方法：
接收基站发送的信令，并根据所述信令确定UE与基站之间的传输模式；
其中，所述信令携带有传输配置指示TCI状态的指示信息、冗余版本RV的指示信息和解调参考信号DMRS端口的指示信息，以及是否携带重复发送次数的指示信息。
进一步地，在上述实施例的基础上，所述信令还携带有传输模式的指示信息。
进一步地，在上述实施例的基础上，当所述TCI状态为第一预设值时，所述信令还携带有UE当前传输的物理下行共享信道PDSCH是否采用时分复用TDM传输模式的指示信息。
进一步地，在上述实施例的基础上，所述UE当前传输的物理下行共享信道PDSCH是否采用时分复用TDM传输模式的指示信息，具体包括：
UE当前传输的PDSCH不采用TDM传输模式以及DMRS端口的分配信息的指示信息；或，
当所述信令为无线资源控制RRC信令时，UE当前传输的PDSCH采 用TDM传输模式以及重复发送次数的指示信息。
进一步地，在上述实施例的基础上，
所述重复发送次数根据所述RRC信令携带的K1参数集合、K2参数集合以及媒体接入控制层控制单元MAC-CE配置的对于K1和K2指示；或，
所述重复发送次数根据高层信令是否配置有TDM3对应的K1，或，高层信令是否配置有TDM4对应的K2指示。
进一步地，在上述实施例的基础上，当所述TCI状态为第二预设值时，所述信令具体携带有高层配置的当前PDSCH采用的空分复用SDM/频分复用FDM/时隙内的时分复用TDM3/时隙间的时分复用TDM4传输模式的指示信息。
进一步地，在上述实施例的基础上，当所述信令携带有TDM3/TDM4传输模式的指示信息时，
所述信令携带有重复发送次数的指示信息；或，
在基站和UE侧分别约定TDM3在时隙内的重复发送次数。
进一步地，在上述实施例的基础上，所述信令携带有重复发送次数的指示信息，具体包括：
所述信令携带有高层配置的重复发送次数的指示信息；或，
所述信令为数据中心互联DCI信令，所述DCI信令在时域资源分配TDRA或RV码点中增加重复发送次数的指示信息。
进一步地，在上述实施例的基础上，
所述信令为DCI信令，所述DCI信令具体携带有高层配置的与TCI状态一一对应的RV或RV组合的指示信息；或，
所述信令具体携带有预定义或高层配置的与RV码点对应的RV和/或RV组合的指示信息；或，
所述信令具体携带有RV和RV_offset的指示信息，所述RV_offset为高层配置的RV传输基序列的起始位置的值；或，
所述信令具体携带有RV的指示信息，并在基站和UE侧分别约定RV_offset的默认值。
进一步地，在上述实施例的基础上，当所述信令具体携带有预定义或 高层配置的与RV码点对应的RV和/或RV组合的指示信息时，
若所述信令携带有SDM/FDM传输模式的指示信息，则RV码点包括用于单个RV的传输模式的RV值，以及用于多个RV的传输模式的RV组合；
若所述信令携带有TDM3/TDM4传输模式的指示信息，则RV码点包括用于单个TCI状态的RV或RV_offset，以及用于多个TCI状态的RV组合或RV_offset组合。
进一步地，在上述实施例的基础上，当所述信令携带有RV和RV_offset的指示信息时，
若所述信令携带有SDM/FDM/TDM传输模式的指示信息，则根据RV指示RV1，根据RV1和RV_offset指示RV2；
其中，RV1、RV2与TCI码点中指示的TCI状态对应的发送时机一一对应；
若所述信令携带有TDM3/TDM4传输模式的指示信息，则根据RV1指示RV1或RV_offset1，根据RV1和RV_offset指示RV2，根据RV1和RV_offset指示RV_offset2；
其中，根据RV_offset1和RV_offset2得到的RV序列与TCI码点中指示的TCI状态对应的发送时机一一对应。
本实施例所述的终端与上述终端侧的传输模式的指示方法对应，其原理和技术效果类似，此处不再赘述。
本实施例公开一种计算机程序产品，所述计算机程序产品包括存储在非暂态计算机可读存储介质上的计算机程序，所述计算机程序包括程序指令，当所述程序指令被计算机执行时，计算机能够执行上述各方法实施例所提供的方法。
本实施例提供一种非暂态计算机可读存储介质，所述非暂态计算机可读存储介质存储计算机指令，所述计算机指令使所述计算机执行上述各方法实施例所提供的方法。
以上所描述的装置实施例仅仅是示意性的，其中所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个位置，或者也可以分布到多 个网络单元上。可以根据实际的需要选择其中的部分或者全部模块来实现本实施例方案的目的。基于本申请公开内容，本领域普通技术人员在不付出创造性的劳动的情况下，即可以理解并实施本申请公开的技术方案。
通过以上的实施方式的描述，本领域的技术人员可以清楚地了解到各实施方式可借助软件加必需的通用硬件平台的方式来实现，当然也可以通过硬件来实现。由此，本申请的一个实施例提供一种计算机软件产品，该计算机软件产品可以存储在计算机可读存储介质中，如ROM/RAM、磁碟、光盘等，包括若干指令用以使得一台计算机设备(例如，个人计算机，服务器，或者网络设备等)执行各个实施例或者实施例的某些部分所述的方法。
应说明的是：以上实施例仅用以说明本发明的技术方案，而非对其限制；尽管参照前述实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实施例技术方案的精神和范围。

Claims (44)

  1. 一种传输模式的指示方法，其特征在于，包括：
    向终端UE发送信令，以使UE根据所述信令确定UE与基站之间的传输模式；
    其中，所述信令携带有传输配置指示TCI状态的指示信息、冗余版本RV的指示信息和解调参考信号DMRS端口的指示信息，以及是否携带重复发送次数的指示信息。
  2. 根据权利要求1所述的传输模式的指示方法，其特征在于，所述信令还携带有传输模式的指示信息。
  3. 根据权利要求1或2所述的传输模式的指示方法，其特征在于，当所述TCI状态为第一预设值时，所述信令还携带有UE当前传输的物理下行共享信道PDSCH是否采用时分复用TDM传输模式的指示信息。
  4. 根据权利要求3所述的传输模式的指示方法，其特征在于，所述UE当前传输的物理下行共享信道PDSCH是否采用时分复用TDM传输模式的指示信息，具体包括：
    UE当前传输的PDSCH不采用TDM传输模式以及DMRS端口的分配信息的指示信息；或，
    当所述信令为无线资源控制RRC信令时，UE当前传输的PDSCH采用TDM传输模式以及重复发送次数的指示信息。
  5. 根据权利要求4所述的传输模式的指示方法，其特征在于，
    所述重复发送次数根据所述RRC信令携带的K1参数集合、K2参数集合以及媒体接入控制层控制单元MAC-CE配置的对于K1和K2指示；或，
    所述重复发送次数根据高层信令是否配置有时隙内的时分复用TDM3对应的K1，或，高层信令是否配置有时隙间的时分复用TDM4对应的K2指示。
  6. 根据权利要求2所述的传输模式的指示方法，其特征在于，当所述TCI状态为第二预设值时，所述信令具体携带有高层配置的当前PDSCH采用的空分复用SDM/频分复用FDM/TDM3/TDM4传输模式的指示信息。
  7. 根据权利要求6所述的传输模式的指示方法，其特征在于，当所 述信令携带有TDM3/TDM4传输模式的指示信息时，
    所述信令携带有重复发送次数的指示信息；或，
    在基站和UE侧分别约定TDM3在时隙内的重复发送次数。
  8. 根据权利要求7所述的传输模式的指示方法，其特征在于，所述信令携带有重复发送次数的指示信息，具体包括：
    所述信令携带有高层配置的重复发送次数的指示信息；或，
    所述信令为下行控制信息DCI信令，所述DCI信令在时域资源分配TDRA或RV码点中增加重复发送次数的指示信息。
  9. 根据权利要求2所述的传输模式的指示方法，其特征在于，
    所述信令为DCI信令，所述DCI信令具体携带有高层配置的与TCI状态一一对应的RV或RV组合的指示信息；或，
    所述信令具体携带有预定义或高层配置的与RV码点对应的RV和/或RV组合的指示信息；或，
    所述信令具体携带有RV和RV_offset的指示信息，所述RV_offset为高层配置的RV传输基序列的起始位置的值；或，
    所述信令具体携带有RV的指示信息，并在基站和UE侧分别约定RV_offset的默认值。
  10. 根据权利要求9所述的传输模式的指示方法，其特征在于，当所述信令具体携带有预定义或高层配置的与RV码点对应的RV和/或RV组合的指示信息时，
    若所述信令携带有SDM/FDM传输模式的指示信息，则RV码点包括用于单个RV的传输模式的RV值，以及用于多个RV的传输模式的RV组合；
    若所述信令携带有TDM3/TDM4传输模式的指示信息，则RV码点包括用于单个TCI状态的RV或RV_offset，以及用于多个TCI状态的RV组合或RV_offset组合；
    当所述信令携带有RV和RV_offset的指示信息时，
    若所述信令携带有SDM/FDM/TDM传输模式的指示信息，则根据RV指示RV1，根据RV1和RV_offset指示RV2；
    其中，RV1、RV2与TCI码点中指示的TCI状态对应的发送时机一一 对应；
    若所述信令携带有TDM3/TDM4传输模式的指示信息，则根据RV1指示RV1或RV_offset1，根据RV1和RV_offset指示RV2，根据RV1和RV_offset指示RV_offset2；
    其中，根据RV_offset1和RV_offset2得到的RV序列与TCI码点中指示的TCI状态对应的发送时机一一对应。
  11. 一种传输模式的指示方法，其特征在于，包括：
    接收基站发送的信令，并根据所述信令确定UE与基站之间的传输模式；
    其中，所述信令携带有传输配置指示TCI状态的指示信息、冗余版本RV的指示信息和解调参考信号DMRS端口的指示信息，以及是否携带重复发送次数的指示信息。
  12. 根据权利要求11所述的传输模式的指示方法，其特征在于，所述信令还携带有传输模式的指示信息。
  13. 根据权利要求11或12所述的传输模式的指示方法，其特征在于，当所述TCI状态为第一预设值时，所述信令还携带有UE当前传输的物理下行共享信道PDSCH是否采用时分复用TDM传输模式的指示信息。
  14. 根据权利要求13所述的传输模式的指示方法，其特征在于，所述UE当前传输的物理下行共享信道PDSCH是否采用时分复用TDM传输模式的指示信息，具体包括：
    UE当前传输的PDSCH不采用TDM传输模式以及DMRS端口的分配信息的指示信息；或，
    当所述信令为无线资源控制RRC信令时，UE当前传输的PDSCH采用TDM传输模式以及重复发送次数的指示信息。
  15. 根据权利要求14所述的传输模式的指示方法，其特征在于，
    所述重复发送次数根据所述RRC信令携带的K1参数集合、K2参数集合以及媒体接入控制层控制单元MAC-CE配置的对于K1和K2指示；或，
    所述重复发送次数根据高层信令是否配置有TDM3对应的K1，或，高层信令是否配置有TDM4对应的K2指示。
  16. 根据权利要求12所述的传输模式的指示方法，其特征在于，当所述TCI状态为第二预设值时，所述信令具体携带有高层配置的当前PDSCH采用的空分复用SDM/频分复用FDM/时隙内的时分复用TDM3/时隙间的时分复用TDM4传输模式的指示信息。
  17. 根据权利要求16所述的传输模式的指示方法，其特征在于，当所述信令携带有TDM3/TDM4传输模式的指示信息时，
    所述信令携带有重复发送次数的指示信息；或，
    在基站和UE侧分别约定TDM3在时隙内的重复发送次数。
  18. 根据权利要求17所述的传输模式的指示方法，其特征在于，所述信令携带有重复发送次数的指示信息，具体包括：
    所述信令携带有高层配置的重复发送次数的指示信息；或，
    所述信令为DCI信令，所述DCI信令在时域资源分配TDRA或RV码点中增加重复发送次数的指示信息。
  19. 根据权利要求12所述的传输模式的指示方法，其特征在于，
    所述信令为DCI信令，所述DCI信令具体携带有高层配置的与TCI状态一一对应的RV或RV组合的指示信息；或，
    所述信令具体携带有预定义或高层配置的与RV码点对应的RV和/或RV组合的指示信息；或，
    所述信令具体携带有RV和RV_offset的指示信息，所述RV_offset为高层配置的RV传输基序列的起始位置的值；或，
    所述信令具体携带有RV的指示信息，并在基站和UE侧分别约定RV_offset的默认值。
  20. 根据权利要求19所述的传输模式的指示方法，其特征在于，当所述信令具体携带有预定义或高层配置的与RV码点对应的RV和/或RV组合的指示信息时，
    若所述信令携带有SDM/FDM传输模式的指示信息，则RV码点包括用于单个RV的传输模式的RV值，以及用于多个RV的传输模式的RV组合；
    若所述信令携带有TDM3/TDM4传输模式的指示信息，则RV码点包括用于单个TCI状态的RV或RV_offset，以及用于多个TCI状态的RV 组合或RV_offset组合；
    当所述信令携带有RV和RV_offset的指示信息时，
    若所述信令携带有SDM/FDM/TDM传输模式的指示信息，则根据RV指示RV1，根据RV1和RV_offset指示RV2；
    其中，RV1、RV2与TCI码点中指示的TCI状态对应的发送时机一一对应；
    若所述信令携带有TDM3/TDM4传输模式的指示信息，则根据RV1指示RV1或RV_offset1，根据RV1和RV_offset指示RV2，根据RV1和RV_offset指示RV_offset2；
    其中，根据RV_offset1和RV_offset2得到的RV序列与TCI码点中指示的TCI状态对应的发送时机一一对应。
  21. 一种传输模式的指示装置，其特征在于，包括：
    信令发送模块，用于向终端UE发送信令，以使UE根据所述信令确定UE与基站之间的传输模式；
    其中，所述信令携带有传输配置指示TCI状态的指示信息、冗余版本RV的指示信息和解调参考信号DMRS端口的指示信息，以及是否携带重复发送次数的指示信息。
  22. 一种传输模式的指示装置，其特征在于，包括：
    信令接收模块，用于接收基站发送的信令，并根据所述信令确定UE与基站之间的传输模式；
    其中，所述信令携带有传输配置指示TCI状态的指示信息、冗余版本RV的指示信息和解调参考信号DMRS端口的指示信息，以及是否携带重复发送次数的指示信息。
  23. 一种基站，包括存储器、处理器及存储在存储器上并可在处理器上运行的计算机程序，其特征在于，所述处理器执行所述程序时执行如下步骤：
    向终端UE发送信令，以使UE根据所述信令确定UE与基站之间的传输模式；
    其中，所述信令携带有传输配置指示TCI状态的指示信息、冗余版本RV的指示信息和解调参考信号DMRS端口的指示信息，以及是否携带重 复发送次数的指示信息。
  24. 根据权利要求23所述的基站，其特征在于，所述信令还携带有传输模式的指示信息。
  25. 根据权利要求23或24所述的基站，其特征在于，当所述TCI状态为第一预设值时，所述信令还携带有UE当前传输的物理下行共享信道PDSCH是否采用时分复用TDM传输模式的指示信息。
  26. 根据权利要求25所述的基站，其特征在于，所述UE当前传输的物理下行共享信道PDSCH是否采用时分复用TDM传输模式的指示信息，具体包括：
    UE当前传输的PDSCH不采用TDM传输模式以及DMRS端口的分配信息的指示信息；或，
    当所述信令为无线资源控制RRC信令时，UE当前传输的PDSCH采用TDM传输模式以及重复发送次数的指示信息。
  27. 根据权利要求26所述的基站，其特征在于，
    所述重复发送次数根据所述RRC信令携带的K1参数集合、K2参数集合以及媒体接入控制层控制单元MAC-CE配置的对于K1和K2指示；或，
    所述重复发送次数根据高层信令是否配置有TDM3对应的K1，或，高层信令是否配置有TDM4对应的K2指示。
  28. 根据权利要求24所述的基站，其特征在于，当所述TCI状态为第二预设值时，所述信令具体携带有高层配置的当前PDSCH采用的空分复用SDM/频分复用FDM/时隙内的时分复用TDM3/时隙间的时分复用TDM4传输模式的指示信息。
  29. 根据权利要求28所述的基站，其特征在于，当所述信令携带有TDM3/TDM4传输模式的指示信息时，
    所述信令携带有重复发送次数的指示信息；或，
    在基站和UE侧分别约定TDM3在时隙内的重复发送次数。
  30. 根据权利要求29所述的基站，其特征在于，所述信令携带有重复发送次数的指示信息，具体包括：
    所述信令携带有高层配置的重复发送次数的指示信息；或，
    所述信令为DCI信令，所述DCI信令在时域资源分配TDRA或RV码点中增加重复发送次数的指示信息。
  31. 根据权利要求24所述的基站，其特征在于，
    所述信令为DCI信令，所述DCI信令具体携带有高层配置的与TCI状态一一对应的RV或RV组合的指示信息；或，
    所述信令具体携带有预定义或高层配置的与RV码点对应的RV和/或RV组合的指示信息；或，
    所述信令具体携带有RV和RV_offset的指示信息，所述RV_offset为高层配置的RV传输基序列的起始位置的值；或，
    所述信令具体携带有RV的指示信息，并在基站和UE侧分别约定RV_offset的默认值。
  32. 根据权利要求31所述的基站，其特征在于，当所述信令具体携带有预定义或高层配置的与RV码点对应的RV和/或RV组合的指示信息时，
    若所述信令携带有SDM/FDM传输模式的指示信息，则RV码点包括用于单个RV的传输模式的RV值，以及用于多个RV的传输模式的RV组合；
    若所述信令携带有TDM3/TDM4传输模式的指示信息，则RV码点包括用于单个TCI状态的RV或RV_offset，以及用于多个TCI状态的RV组合或RV_offset组合；
    当所述信令携带有RV和RV_offset的指示信息时，
    若所述信令携带有SDM/FDM/TDM传输模式的指示信息，则根据RV指示RV1，根据RV1和RV_offset指示RV2；
    其中，RV1、RV2与TCI码点中指示的TCI状态对应的发送时机一一对应；
    若所述信令携带有TDM3/TDM4传输模式的指示信息，则根据RV1指示RV1或RV_offset1，根据RV1和RV_offset指示RV2，根据RV1和RV_offset指示RV_offset2；
    其中，根据RV_offset1和RV_offset2得到的RV序列与TCI码点中指示的TCI状态对应的发送时机一一对应。
  33. 一种终端，包括存储器、处理器及存储在存储器上并可在处理器上运行的计算机程序，其特征在于，所述处理器执行所述程序时执行如下步骤：
    接收基站发送的信令，并根据所述信令确定UE与基站之间的传输模式；
    其中，所述信令携带有传输配置指示TCI状态的指示信息、冗余版本RV的指示信息和解调参考信号DMRS端口的指示信息，以及是否携带重复发送次数的指示信息。
  34. 根据权利要求33所述的终端，其特征在于，所述信令还携带有传输模式的指示信息。
  35. 根据权利要求33或34所述的终端，其特征在于，当所述TCI状态为第一预设值时，所述信令还携带有UE当前传输的物理下行共享信道PDSCH是否采用时分复用TDM传输模式的指示信息。
  36. 根据权利要求35所述的终端，其特征在于，所述UE当前传输的物理下行共享信道PDSCH是否采用时分复用TDM传输模式的指示信息，具体包括：
    UE当前传输的PDSCH不采用TDM传输模式以及DMRS端口的分配信息的指示信息；或，
    当所述信令为无线资源控制RRC信令时，UE当前传输的PDSCH采用TDM传输模式以及重复发送次数的指示信息。
  37. 根据权利要求36所述的终端，其特征在于，
    所述重复发送次数根据所述RRC信令携带的K1参数集合、K2参数集合以及媒体接入控制层控制单元MAC-CE配置的对于K1和K2指示；或，
    所述重复发送次数根据高层信令是否配置有TDM3对应的K1，或，高层信令是否配置有TDM4对应的K2指示。
  38. 根据权利要求34所述的终端，其特征在于，当所述TCI状态为第二预设值时，所述信令具体携带有高层配置的当前PDSCH采用的空分复用SDM/频分复用FDM/时隙内的时分复用TDM3/时隙间的时分复用TDM4传输模式的指示信息。
  39. 根据权利要求38所述的终端，其特征在于，当所述信令携带有TDM3/TDM4传输模式的指示信息时，
    所述信令携带有重复发送次数的指示信息；或，
    在基站和UE侧分别约定TDM3在时隙内的重复发送次数。
  40. 根据权利要求39所述的终端，其特征在于，所述信令携带有重复发送次数的指示信息，具体包括：
    所述信令携带有高层配置的重复发送次数的指示信息；或，
    所述信令为DCI信令，所述DCI信令在时域资源分配TDRA或RV码点中增加重复发送次数的指示信息。
  41. 根据权利要求34所述的终端，其特征在于，
    所述信令为DCI信令，所述DCI信令具体携带有高层配置的与TCI状态一一对应的RV或RV组合的指示信息；或，
    所述信令具体携带有预定义或高层配置的与RV码点对应的RV和/或RV组合的指示信息；或，
    所述信令具体携带有RV和RV_offset的指示信息，所述RV_offset为高层配置的RV传输基序列的起始位置的值；或，
    所述信令具体携带有RV的指示信息，并在基站和UE侧分别约定RV_offset的默认值。
  42. 根据权利要求41所述的终端，其特征在于，当所述信令具体携带有预定义或高层配置的与RV码点对应的RV和/或RV组合的指示信息时，
    若所述信令携带有SDM/FDM传输模式的指示信息，则RV码点包括用于单个RV的传输模式的RV值，以及用于多个RV的传输模式的RV组合；
    若所述信令携带有TDM3/TDM4传输模式的指示信息，则RV码点包括用于单个TCI状态的RV或RV_offset，以及用于多个TCI状态的RV组合或RV_offset组合；
    当所述信令携带有RV和RV_offset的指示信息时，
    若所述信令携带有SDM/FDM/TDM传输模式的指示信息，则根据RV指示RV1，根据RV1和RV_offset指示RV2；
    其中，RV1、RV2与TCI码点中指示的TCI状态对应的发送时机一一对应；
    若所述信令携带有TDM3/TDM4传输模式的指示信息，则根据RV1指示RV1或RV_offset1，根据RV1和RV_offset指示RV2，根据RV1和RV_offset指示RV_offset2；
    其中，根据RV_offset1和RV_offset2得到的RV序列与TCI码点中指示的TCI状态对应的发送时机一一对应。
  43. 一种非暂态计算机可读存储介质，其上存储有计算机程序，其特征在于，该计算机程序被处理器执行时实现如权利要求1至10任一所述的传输模式的指示方法。
  44. 一种非暂态计算机可读存储介质，其上存储有计算机程序，其特征在于，该计算机程序被处理器执行时实现如权利要求11至20任一所述的传输模式的指示方法。
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